8-30 T/H Fish Feed Production Line In India

This is a fish feed production line project that produces a variety of feed products and is located in India.

As a country with a large population and agriculture, India is very suitable to vigorously develop feed raw materials and feed processing industries based on its advantages of rich feed resources, good breeding industry foundation, and intensive labor force, and promote the on-site conversion and value-added of grain and other feed resources.

In view of the good prospects of the feed market, the customer of this project originally had a livestock and poultry feed production line. In the original factory, the lower-profit livestock and poultry feed production line was removed, part of the equipment was retained, and an investment of US$2.1 million was invested to build a new special aquatic feed fish feed production line in India project.

The project has a planned total land area of 25,329 m2 and a total construction area of 30,798.94 m2. It mainly constructs auxiliary buildings, comprehensive buildings, production areas, etc. After completion, it will have an annual output of 150,000 tons of special aquatic feed The project includes auxiliary buildings, comprehensive buildings, production areas, etc., with a labor capacity of 120 people.

• Project nature: New construction
• Construction content: The fish feed production line in India project content includes a combination workshop (with a main workshop, a comprehensive workshop, a general workshop, a secondary workshop and a maintenance workshop), a distribution workshop (with a distribution workshop and a distribution shed), a comprehensive building, a communication room, etc.
• Total investment: US$2.1 million.
• Labor capacity: This project has a labor quota of 120 people
• Working system: The annual operation time is 300 days, working in one shift of 8 hours a day.

The fish feed production line in India project consists of main engineering, auxiliary engineering, environmental protection engineering, public engineering and storage and transportation engineering.

• Main workshop, 6 floors 30m, building area 6030m2, used for the pelleting process of special aquatic feeds
• Comprehensive workshop, 1st floor 8.5m, construction area 7145m2, used for the production of special aquatic feed
• Raw material and storage workshop：used for the production of soybean meal feed.

• Comprehensive building：The 6-story building is 21.6m high and has a construction area of 2304.1m2. The first floor is the canteen, the 2nd to 4th floors are office buildings, and the 5th to 6th floors are dormitories.
• Laboratory：Set up on the 4th floor of the complex building
• Doorman：1 floor, construction area 96.0m2
• Repair shop：The first floor is 8.5m high, with a construction area of 250m2. It is used for the storage of workshop maintenance tools and equipment repairs.

• General workshop：Located in the combination workshop, it is 2 stories high and has a construction area of 2168m2. It is used as a raw material warehouse for aquatic feed and aquatic products.
• Second workshop：Located in the combination workshop, it has 6 floors with a height of 23m and a construction area of 1836m2. It is used for stacking finished aquatic feed products.
• Distribution of canopies：Located in the distribution workshop, with a floor height of 12.5m and a construction area of 19,900m2, it is used for the storage of soybean flour.
• Cornmeal bin：There are a total of 9 corn flour warehouses, located on the south side of the factory, with a total capacity of 18,000 tons.
• Transportation method：Road transportation is used for transportation outside the factory, and cars and forklifts are used for transportation within the factory.

The fish feed production line in India project has an annual output of 150,000 tons of feed. In fact, 100,000 tons of special aquatic feed (divided into premixed, concentrated feed and compound feed) and 50,000 tons of soybean meal feed are packaged in 20~40kg woven bags. The maximum storage capacity of the factory is 8,000 tons. , see the table below for details.

The details of the main raw and auxiliary materials and consumption of this fish feed production line in India project are shown in the table below.

1. Core materials: (the core materials among the raw and auxiliary materials used in this fish feed production line in India project are mainly vitamin additives, amino acid additives (threonine), mineral additives, enzyme preparations and other feed additives)
2. Vitamin additive: a microbial product that can stimulate the reproduction and growth of its own beneficial bacteria while resisting the growth of harmful bacteria, including vitamins A, D2, E, K3, B1, D3, B2, B6, C and multiple vitamins. The additives used in the project are mainly from large biotechnology manufacturers. The sources and quality of various additives used in this project are guaranteed.
3. Amino acid additive (threonine): widely used in feed additives, with the following characteristics: It can adjust the amino acid balance of feed and promote the growth of livestock and poultry; It can improve meat quality; It can improve the nutritional value of feed with low amino acid digestibility ; It can reduce the cost of feed raw materials.
4. Mineral additives: including copper, iron, zinc, cobalt, manganese, iodine, selenium, calcium, phosphorus, etc., which can regulate body metabolism, promote growth and development, enhance disease resistance, and improve feed utilization.
5. Antifungal agent: Since concentrated feeds such as rice bran and corn flour contain high oil content and are prone to oxidation and deterioration after being stored for a long time, adding antifungal agents can prevent feed oxidation and mildew.
6. Enzyme preparations: The enzyme preparations used in this project are mainly amylase, lipase, maltase, mannanase, pectinase, phytase, protease, etc.

In order to ensure product quality and safe use, all feed additives used in this fish feed production line in India project meet the relevant provisions of the "Feed and Feed Additive Management Regulations", which clearly stipulates:

• It is prohibited to use substances banned by the Ministry of Agriculture and other substances that have direct or potential harm to the human body to breed animals;
• It is prohibited to add animal-derived ingredients other than milk and dairy products to animal feed;
• It is prohibited to use feed and feed additives without product labels, product quality standards, and product quality inspection certificates.

According to the project construction scale, product plan and technical plan requirements, comprehensive consideration of equipment service life, material consumption indicators, spare parts guarantee level, installation and commissioning technical services, equipment investment, etc., the main production equipment of this fish feed production line in India project is determined as shown in the table below.

The total water consumption of the fish feed production line in India project is 3030m3/a, using urban tap water as the water source, which can meet the normal water supply needs for production, living and fire protection in the factory area.

The drainage of the project includes rainwater, laboratory and domestic sewage, and the drainage pipe network is constructed according to the diversion of rainwater and sewage.

After rainwater is collected in the factory area, it is connected to the municipal rainwater pipe network and finally flows into the local river; laboratory wastewater is neutralized and pre-treated; domestic sewage is pre-treated by grease traps and septic tanks and then discharged into the sewage pipe network and enters the sewage treatment plant for concentration.

It is further processed to meet the "Pollutant Discharge Standards for Urban Sewage Treatment Plants" and finally discharged into local rivers. The amount of wastewater discharged from the project is 2430m3/a.

The fish feed production line in India project's annual electricity consumption is 5.1 million KWh/a. The power supply of the project comes from the existing municipal power supply grid in the area, which can meet the power requirements of the entire factory area and supply power to all electrical equipment in the factory.

The cable and wire laying methods are based on the specific conditions, using cable bridges, cable direct burial, and cable (wire) laying through pipes, etc. or a combination of the three. The project does not require additional generators.

The steam required for the expansion process of the project production process is provided by the local power plant. The steam pipeline has been connected in the area. The steam can be passed into the production workshop during the project production process.

The amount of steam required during the project production process is approximately 1,900 tons/year. Power plant steam can meet production requirements.

In the overall layout design of the fish feed production line in India project, the "Fire Protection Requirements for Architectural Design" is followed: the main passage is 10m wide, the distance between buildings is not less than 10m, and all circular passages are set up to facilitate the entry and exit of fire trucks.

The project workshop adopts a brick-concrete structure and is a non-combustible body. According to the specification requirements, the workshop considers the width of fire escapes, evacuation stairs, evacuation distances, safety exits and evacuation walkways according to the specification design requirements.

Raw and auxiliary material transportation routes: The various raw and auxiliary materials required for the fish feed production line in India project production process mainly come from surrounding areas and are transported to the factory from various places by transportation vehicles.

Product transportation route: The finished feed of the project is sold to surrounding rural areas and other places in need along the surrounding roads.

The fish feed production line in India project mainly produces concentrated, premixed feed (powder) and compound feed (granular). Powdered feed does not have a pelleting process, and other processes are the same. This project analysis will be analyzed together. The products are all in granular and powder form, without fermentation process.

Brief description of production process:

01

Raw material receiving and pretreatment section (cleaning and magnetic separation)

Raw material receiving and pretreatment section (cleaning and magnetic separation) The raw materials of the fish feed production line in India project are divided into pellets, powders and liquid raw materials. The pellets are mainly corn, soybean meal, bran, rice bran, etc. The powders are mainly stone powder, calcium bicarbonate and feed additives, etc. The liquid raw materials are mainly soybean oil.

• ① Settings of material receiving and feeding ports:
  The project sets up 8 material receiving and feeding ports (granules and powders) in the raw material warehouse and premix workshop. Each material can be fed nearby in the raw material warehouse. Each feeding port is set Iron grating screen to remove large impurities.
• ② Material receiving and preprocessing steps:
  Pellets:
  Bulk corn is unloaded directly into the material receiving inlet by truck; soybean meal, bran, rice bran and other bagged raw materials are transported to the material receiving inlet by forklift.
  After unpacking, the powder is poured into the material receiving inlet. into the material port; then the pellets are fed from the material receiving inlet into the scraper, elevator, coarse pellet cleaning screen, and permanent magnetic cylinder, and then enter the raw material silo or their respective silos to be crushed (the preliminary cleaning screen can screen out impurities.
  The permanent magnet bucket can screen out iron impurities), among which: corn enters the raw material silo for storage, and soybean meal, bran, rice bran, etc. directly enter their respective silos to be crushed.
  Powder:
  The bagged powder stored in the raw material warehouse is transported to the material receiving inlet with a forklift. After unpacking, the powder is poured into the material receiving inlet. The powder is fed from the material receiving inlet into the scraper.
  The plate machine, elevator, primary cleaning screen, permanent magnet drum and other equipment directly enter their respective batching bins after processing.
  Liquid raw material (soybean oil):
  Soybean oil is stored in underground horizontal storage tanks in the batch material workshop; the purchased soybean oil is directly put into the horizontal storage tank through the discharge pipe of the feed tanker.
• ③ Purpose of raw material pretreatment:
  The main purpose of raw material pretreatment is to remove non-magnetic impurities such as sand, straw, and magnetic impurities such as iron filings and nails contained in the raw materials to ensure the safe production of processing equipment, reduce equipment losses, and ensure product quality.
  After being lifted, the raw materials enter the screening equipment to remove non-magnetic impurities, and then pass through the permanent magnet cylinder to remove magnetic impurities.

02

Crushing process

The crushing section is mainly used to crush granular raw materials to ensure that the particle size after crushing meets the processing and product requirements. The granules in the bin to be crushed enter their respective batching bins after passing through the buffer hopper, feeder (with magnetic separator), pulverizer, scraper and elevator.

The specific steps are: the pellets stored in the granular raw material silo are discharged from the discharge port through the scraper and elevator into their respective silos to be crushed; the fish feed production line in India project is equipped with a total of 6 silos to be crushed, with a capacity of 240m3, each for corn , soybean meal, bran, rice bran waiting for crushing raw materials.

The granules in the bin to be crushed are uniformly fed through the buffer hopper and the feeder with a magnetic separator, and magnetic impurities in the crushed materials are removed to ensure the safe operation of the crusher.

The raw materials entering the crusher are crushed by the impact of the hammer (the raw materials are crushed using a hammer crusher, which uses the impact of the high-speed rotating hammer to crush the materials). Materials smaller than the screen hole are quickly crushed under the negative pressure of the dust collector. Discharge the crusher to achieve the purpose of crushing.

03

Ingredients and mixing section

The fish feed production line in India project is equipped with a total of 40 batching warehouses, with a total warehouse capacity of 600m3, which can meet the production capacity of more than 6 to 8 hours and ensure the continuity of production.

The batching warehouses are divided into three specifications: large, medium and small: the main types of large warehouses It is used to store materials with large proportions such as corn and soybean meal. The small warehouse mainly stores materials with small proportions and large bulk density such as calcium hydrogen phosphate and stone powder.

In order to maximize the utilization rate of the batching bin, reduce the frequency of material replacement, thereby reducing the probability of cross-contamination of materials and reducing labor intensity; the cone buckets of the batching bin are all large-angle square to round, and the secondary bucket is round.

The square structure effectively solves the arching problem of the cone bucket of the silo; an arch breaking device is installed in the silo storing materials that are prone to arching, which can effectively prevent arching. The bottom of the discharging machine adopts an improved circular structure.

The discharging materials from the batching bin fall as a whole without forming arches. It prevents material leakage and has low residual content, which can prevent cross-contamination.

The batching of this fish feed production line in India project adopts the "accumulative" batching method and implements automatic batching by computer. The raw materials in the batching bin are sent to the batching scale hopper through the feeder for measurement.

The soybean oil in the underground storage tank is quantitatively added to the batching scale hopper by the liquid addition system. When the batching of all raw materials is completed, the batch of ingredients is completed. Batching operation; after the batching is completed, it enters the mixer (twin-shaft blade high-efficiency mixer), and is mixed under the set mixing time.

After the mixing is completed, the mixer door opens to complete the batching and mixing operation of a batch of materials; the mixed materials are then passed through After being processed by scrapers, elevators, powder sieves and other equipment, the powder products directly enter the powder finished product warehouse to be packaged and sold.

The powdery materials that need to be granulated enter the warehouse to be granulated. This project is set up in the compound feed area 4 A 15m3 silo to be granulated.

In the mixer, the materials are stirred by the mixer blades to overcome their own weight, causing the materials to flow "in the air". Under the action of the two-axis blades, the materials tumble up and down and penetrate each other, thereby achieving the purpose of uniform mixing.

The mixing process of ingredients will produce a certain amount of dust, which will be collected by the gas collecting hood and processed by the pulse dust collector before being discharged.

04

Granulation, cooling and classification process

After the ingredient mixing process is completed, the powdery materials that need to be granulated enter the granulation bin. The materials to be granulated in the bin are fed into the conditioner through the feeder, and dry saturated steam is introduced to complete the conditioning (the temperature of the material is adjusted to 80-85°C, and the moisture content of the material is about 10%).

The material enters the fish feed pellet machine, and the rotating pressure roller presses the material into the die hole and out from the bottom. The cylindrical feed coming out of the die hole is cut into the required length by a cutter to complete the granulation process; it is granulated through conditioning treatment The obtained pellet feed has a high moisture content and temperature.

Under these conditions, the pellet feed is easy to deform and break, and will also cause sticking and mildew during storage. Therefore, the moisture content must be reduced to below 12.5% through a cooling fan. The temperature Reduce to below 8°C above air temperature.

The fish feed production line in India project uses a counterflow cooler combined with a cooling air network system for ventilation and cooling, and adjusts the moisture content of the pellet materials.

Finally, the pellets with qualified pellet size are screened through a classification screen and sent to the finished product warehouse for packaging and sale, and the unqualified pellets are screened out (Screen material) Return to the granulation process to granulate again.

It adopts a counter-flow slide valve cooler, which adopts the latest international pellet octagonal counter-flow cooler with small vibration and low noise. The two classification sieves adopt SFJH130*2C rotary classification sieves, and the materials under the sieves are returned to the granulator for re-granulation.

The feeder adopts frequency conversion to control feeding, making the feeding uniform and continuous, and the feeding amount can be adjusted according to the current of the granulator host; it is conducive to the conditioning process of the material and ensures high quality of feed.

The conditioner adopts a double-layer elongated stainless steel conditioner to improve the maturity of the feed and facilitate the sterilization of the feed and the digestion and absorption of livestock and poultry animals.

05

Packaging and warehousing process

The granular products and powder products entering the finished product warehouse enter the automatic weighing system through the buffer hopper respectively. The automatic weighing scale weighs the materials according to the quota.

Through automatic discharge, the materials fall into the feed bag held by the filling mechanism. , then release the bag clamp, and the packaging bag filled with products is sent to the sewing machine for sewing through the conveyor belt, completing the automatic packaging process. Then it enters the finished product warehouse through coding and packaging.

Finished products that do not need to be packaged are transported by bulk trucks through the bulk finished product system.

The packaging section of this fish feed production line in India project is equipped with 3 granular packaging scales and 2 bag sewing machines. The packaging scales have the characteristics of automatic tare removal, automatic error adjustment, and strong anti-interference ability. 3 belt conveyors.

06

Auxiliary system

The production process includes air compression system, microcomputer electronic control system, dust removal air network system, liquid addition system, steam system and other auxiliary systems.

• Air compression system:
  including air compressor, air storage tank, dryer, etc. The air pressure and air volume provided by the system meet production needs.
• Microcomputer electronic control system:
  reflects the operating status of all equipment on the production line and the operating load of major equipment. It has an equipment failure alarm function.
  It adopts a combination of centralized monitoring in the central control room and on-site decentralized control to realize computer automatic batching; The performance of similar instruments, measurement and weighing, components and other instruments meets the requirements, and the work is stable and reliable.
• Dust removal air net system:
  Use pulse dust collector to combine centralized dust removal and single-point dust removal. The feeding port and packaging port adopt single-point dust removal.
• Liquid addition system:
  It mainly includes a liquid storage tank, an infusion pump, a spray pump, and a filter device. The liquid measurement accuracy meets production requirements.
• Steam system (granular product production):
  Mainly composed of pipelines, regulating valves, etc. Safety valves, traps and pressure reducing valves are installed in the system.

The feed raw material powder production process during the fish feed production line in India project operation period is as follows:

Brief description of process flow:

01

Screening:

Impurities in soybeans not only affect product quality but are directly related to processing equipment and personal safety. In severe cases, the entire equipment may be damaged and affect the smooth progress of product production, so they should be removed in time. The cleaning equipment is mainly based on screening.

According to the differences in particle size, width, thickness, etc. of the material particles, part of them pass through the screen surface to become under-sieve objects, and the other part remains on the screen surface to become over-sieve objects, thereby separating the materials from impurities. Separation to achieve the purpose of removing impurities.

The screening equipment removes large and long debris such as grass, wheat straw, hemp rope, paper, soil clods, leaves, sticks and other debris in the raw materials. The screening process is completely sealed, and qualified raw materials after screening are lifted into the silo for temporary storage.

02

Crushing process:

The screened materials enter the crusher from the silo through the feeder and are crushed by the impact of the hammer (the raw material is crushed using a hammer crusher, which uses the impact of the high-speed rotating hammer to crush the material) , materials smaller than the screen hole are quickly discharged from the crusher under the negative pressure of the dust collector to achieve the purpose of crushing.

The particle size of the crushed material is about 01-3mm. The purpose of crushing is to improve the quality of subsequent processes and improve work efficiency.

03

Heating and puffing:

The puffing method of the fish feed production line in India project is wet puffing. Puffing is a gelatinization process under the combined effects of moisture, heat, mechanical shear, friction, kneading and pressure difference.

The project's expansion heat source is the steam provided by Power Plant. When the powder is mixed with steam, the powder particles begin to absorb water and expand. When passing through the expansion chamber, the rapidly rising temperature and the rubbing of the spiral blades cause the bag-shaped starch particles to accelerate water absorption and form crystals.

The structure begins to disintegrate, the hydrogen bonds are broken, and the expanded starch granules begin to rupture and turn into a viscous melt. Due to the instantaneous pressure drop at the outlet of the extruder, the instantaneous loss of steam (moisture) causes a large number of expanded starch granules to collapse.

High temperature, high pressure and mechanical shearing make extrusion puffing more complete starch gelatinization than other processing methods. Generally, the degree of gelatinization can reach 90% to 100%.

Compared with the conventional cooking process, it can rupture plant cell walls. The starch chain is shorter, thereby improving digestibility more effectively, and the expanded material becomes crystalline granules.

04

Cooling of puffed materials:

During the puffing process, due to the introduction of high-temperature and high-humidity steam and the extrusion of the material, a large amount of heat is generated, which makes the temperature and humidity of the puffed particles higher.

Under this condition, temporary storage will occur. To prevent sticking and mildew, the moisture must be reduced to less than 14% and the temperature must be reduced to less than 8°C higher than the air temperature. Air cooling is used for project cooling, and the puffed material is cooled by the air sent by the fan.

05

Crushing:

The cooled materials enter the crusher through the impeller feeder. After crushing, the further crushed pellets are transported by the screw conveyor and lifted to the temporary storage bin by the bucket elevator. The purpose of crushing is to increase the particle size of the material.

The specific surface area improves its utilization in subsequent feed production and increases the contact area of digestive enzymes with raw materials; it reduces the chewing energy consumption of animals during feeding, which is beneficial to improving feed returns.

06

Packaging:

Finally, according to market demand, the crushed powder is packaged in plastic bags in the packaging room into finished products for external sale.

• The main entrance and exit of the factory area is set up on the side of the road, and passages and empty areas are set up around the workshop to facilitate material transportation;
• Green belts are arranged around each building to absorb dust, reduce noise and beautify the environment.
• The fish feed production line in India project layout basically ensures a smooth and compact process flow, while maximizing the area savings in the factory area, reducing the material transportation process, and providing a larger space for greening and beautification work in the factory area.

Through the analysis of the location and factory building of the customer's feed mill, when designing the floor plan, RICHI engineers strengthened the functional partitioning of the floor plan in the factory building to ensure a smooth and compact process flow.

At the same time, they tried to connect each process section as closely as possible to maximize It greatly saves the factory area, reduces the material transportation process, and provides a larger space for the greening and beautification work of the factory area.

After the fish feed production line in India project is put into operation, the air pollutants generated mainly include dust and odor generated in the production workshop and canteen fume.

01

Dust

The project adopts advanced fully automated production technology. During the production process, the entire production process is completed in a sealed state. Dust is mainly generated in all aspects of receiving, loading, unloading and processing.

① Receive loading and unloading dust:

• The raw material warehouse of the project is a fully enclosed structure, and the product warehouse is a steel structure workshop. The components of loading and unloading dust are also grain processing residues such as corn, soybean meal, and rapeseed meal.
• The finished product of this fish feed production line in India project is 150,000 tons/year. During the transportation process, it is packed in snakeskin bags. The total amount of unorganized dust in the packaging materials of the finished product warehouse of this project is about 0.15t/a.
• The dust output is very small and escapes directly through the windows. Unorganized exodus. Except for soybeans and corn flour, the raw materials are all in bags.
• The dust generated in the raw material area is 8.05t/a. An air collecting hood is set up above the raw material warehouse.
• The fan air volume is 20000m3/h, and the dust removal efficiency is 99 %The unorganized emission after treatment by the pulse dust collector system is 0.081t/a (0.0112kg/h).

② Soy flour processing dust

• The main production points of soybean processing dust are: screening, crushing, puffing and packaging dust. The main component of waste gas is soybean flour processing residues.
• The amount of dust generated in the screening section of the fish feed production line in India project is calculated based on 10% of the emission coefficient of the feed processing industry, then the emission amount is 0.215t/a;
• The amount of dust generated in the puffing section and crushing section is calculated based on 80% of the emission coefficient of the feed processing industry, then the emission amount is 1.72t/a;
• The amount of baling dust generated is calculated based on 10% of the emission coefficient of the feed processing industry, and the emission amount is 0.215t/a.

The dust generated in the crushing and puffing process of the fish feed production line in India project is processed by the matching pulse bag dust collector and then discharged from the same 35m (P1) exhaust pipe at high altitude on the roof of the workshop.

The total air volume of the fan is 30000m3/h. The dust in the exhaust pipe after treatment The emission volume is 1.72t/a, the emission rate is 0.717kg/h, and the concentration is 23.9mg/m3.

③ Aquatic feed processing dust

The main dust generation points in aquatic product processing include: raw material cleaning dust, crushing dust, ingredient mixing dust, granulation (aging) classification dust and packaging dust.

The main components of waste gas are corn, soybean meal, rapeseed meal and other grain processing residues. The fish feed production line in India project processes 20,000 tons of premixed aquatic feed per year and 80,000 tons of aquatic feed per year. The dust emission from aquatic feed processing is 4.59t/a.

• The raw material cleaning dust, ingredient mixing dust and grading and packaging dust in the workshop are scattered due to the scattered dust production points.
  From a safety point of view, the dust in the above-mentioned sections is processed by the matching pulse bag dust collector and is discharged unorganized in the workshop. From the above-mentioned Analysis shows that the amount of unorganized dust emissions in the workshop is 0.917t/a (0.382kg/h).
• The dust generated in the crushing section is processed by the matching pulse bag dust collector and led to the same 35m (P2) exhaust pipe for discharge at high altitude on the roof of the workshop.
  The total air volume of the fan is 20000m3/h. The dust emission from the exhaust pipe after treatment The amount is 2.066t/a, the emission rate is 0.86kg/h, and the concentration is 43mg/m3.
• The dust generated in the granulation (curing) classification section is processed by the matching pulse bag dust collector and then discharged through the same 35m (P3) exhaust pipe at high altitude on the roof of the workshop.
  The total air volume of the fan is 20000m3/h, then the exhaust pipe is processed The dust emission volume is 1.607t/a, the emission rate is 0.669kg/h, and the concentration is 33.45mg/m3.

02

Noise control

The high-noise equipment produced in this fish feed production line in India project mainly includes screening equipment, crushers, extruders, coolers, balers, air compressors and dust removal equipment, etc., with sound pressure levels ranging from 75 to 90dB (A).

Equipment selection and selection of low-noise equipment; adding mufflers for aerodynamic noise such as fans; strengthening the basic vibration reduction of noise equipment and setting up vibration-absorbing pads; rationally arranging operating times and prohibiting night production; standardizing operations to reduce the impact of material loading and unloading noise.

The closed workshop building has doors and windows close to the factory boundary, and uses high-density materials with good sound insulation properties. After taking the above measures, the noise at the factory boundary can reach the "Environmental Noise Emission Standard at the Factory Boundary of Industrial Enterprises".

03

Solid waste management

During the operation of the fish feed production line in India project, solid waste mainly includes screening solid waste, primary cleaning solid waste, magnetic separation solid waste, dust removal ash, waste packaging materials, waste engine oil and employee domestic waste.

• Screening solid waste:
  The amount of sand and gravel and other impurities generated during the soybean flour screening process accounts for about 0.2% of the total amount of processed materials. The output of solid waste screened by the fish feed production line in India project is 99.6t/a, which is general solid waste and daily garbage. Similarly, it can be sent to domestic waste landfill for disposal.
• Initial solid waste cleaning:
  The amount of sand and other impurities generated during the cleaning process of granular raw materials and powdery raw materials accounts for about 0.2% of the total amount of processed materials (corn, soybean meal, rapeseed rice, etc.), then the solid waste output of the project cleaning It is 172.8t/a, which is general solid waste. It is similar to daily garbage and can be sent to domestic waste landfill for disposal.
• Magnetic separation of solid waste:
  According to the empirical data provided by the construction unit, the iron debris produced during the magnetic separation of granular and powdery raw materials is very small, about 15t/a, which can be collected in a unified manner and taken away for comprehensive utilization.
• Dust collected during loading and unloading:
  The dust generated during the material loading and unloading process is processed by the pulse dust collector. The amount of material dust collected is about 7.969t/a, which is used as raw materials and reused in production.
• Waste packaging materials:
  The raw and auxiliary materials of the fish feed production line in India project, such as corn, wheat bran, and soybean meal, are packed into the factory in fiber bags or sacks. During use, a certain amount of waste packaging materials of about 15 tons will be generated, which will be collected and sold centrally.
• Waste engine oil:
  The operation and maintenance of the project's mechanical equipment will produce a small amount of waste engine oil. Waste engine oil is hazardous waste, and the amount generated is about 0.5t/a. Waste engine oil is hazardous waste. The customer built a hazardous waste temporary storage room for collection and storage, and then sent it to a qualified hazardous waste disposal center for processing.
• Domestic waste:
  About 40 employees live in the factory area. The domestic waste generated by the employees who live in the hotel is calculated as 1.0kg/person.d, and those who do not live in the hotel are calculated as 0.5kg/person.d. The total number of employees in the project is 120. The amount of garbage generated is about 24t/a.

In addition to this fish feed production line in India, Richi Machinery also exported livestock and poultry feed pellet production lines, straw pellet production lines, grass pellet production lines, wood pellet production lines, biomass pellet prodcution line, rice husk pellet production lines and other projects to India. If you are interested in our India project, please contact us to inquire about project details and get solutions and equipment quotations!