10-12 T/H Cat Litter Production Line In Italy

This project is a 10-12 t/h air purifier granule and cat litter production line in Italy project. The customer was originally engaged in the material processing industry. Due to the needs of enterprise development, it was changed to Technology Co., Ltd. The project covers an area of 1600m2. The company is mainly engaged in the processing of bentonite cat litter products.

In 2022, based on the rapid development of the pet products market, the customer invested US$400,000 to build a new plant cat litter production line with an annual output of 20,000 tons and an air purifier pellet production line project with an annual output of 10,000 tons in the existing factory. After the expansion, the entire factory will have an annual output of 50,000 tons of air purifier series - cat litter.

• Project nature: expansion
• Working system: 300 working days per year, 8-hour single-shift production.
• Number of employees: 15. This 10-12 t/h cat litter production line in Italy project has added 20 new labor capacity.

Product plans and scale of 10-12 t/h cat litter production line in Italy are detailed in the table below:

The main construction content of the 10-12 t/h cat litter production line in Italy project is shown in the figure below:

In this project, what are the main cat litter making machine of the bentonite cat litter production line, plant cat litter production line and air purifier pellet production line? The following is a list of the main items used in these three pellet plant in Italy projects:

When processing different cat litter or air purifier pellets, all raw materials vary greatly. The main raw and auxiliary materials and energy consumption of the 10-12 t/h cat litter production line in Italy project are shown in the table below:

• Water supply:
  The new water consumption of this 10-12 t/h cat litter production line in Italy project is 3300t/a, mainly domestic water and mixing water. It is supplied by the local municipal water supply network. After the upgrade, there is no water curtain dust removal facility, and the water curtain dust removal water consumption of the existing project is reduced to 0.
• Drainage:
  Relying on the existing rainwater and sewage diversion pipe network, all water used for product mixing will evaporate. An additional 240t/a of domestic sewage was added. The domestic sewage of employees is treated by sewage treatment equipment and discharged into local rivers after reaching the first-level standard of the "Comprehensive Wastewater Discharge Standard".
• Power supply:
  The new electricity load of the 10-12 t/h cat litter production line in Italy project is approximately 200,000 KWh/a, and the entire plant’s electricity consumption is 300,000 KWh/a. It relies on the existing regional power supply facilities and is supplied by the local municipal power supply pipeline network.

This 10-12 t/h cat litter production line in Italy expansion project rents the completed factory building for production, mainly adding equipment, without civil construction, and the construction period is only the installation of production equipment.

This project processes a total of 3 types of pellet products, and the production processes are different. The following is an introduction to the process design and flow of the three pellet production lines:

01

Bentonite cat litter production line process design (existing)

The cat litter production process mainly uses purchased finished bentonite as raw material. After being granulated by a granulator, it is directly transported to a drum dryer for drying. After drying, it is screened and finally packaged and stored in the warehouse.

1. Granulation section
   Add a small amount of water to the sun-dried semi-finished bentonite clay to increase the moisture content from 10% to 30-35%, so that it can be easily formed into granules in the cat litter granulator.
2. Drying stage
   The granulated pellets are transported to the drying kiln by the conveyor belt for drying, and the drying temperature is controlled to 130°C. The fuel used in the drying cylinder is biomass, which will produce smoke, SO2, and NOX.
3. Screening
   The above-mentioned semi-finished products are screened through a classification screen. The cat litter production line in Italy project uses classification screening to select cat litter with a size of 1-4mm. The screened cat litter enters the next process. This section will produce dust and defective products, of which the defective products will be recycled and reused.
4. Finished product packaging section
   The dried products are transferred to storage tanks and packaged according to certain specifications.

02

Plant tofu cat litter production process design:

1. Feeding:
   Use manual feeding to put raw materials such as flour, starch, corn flour, corn starch, pea fiber, bamboo fiber powder, tea powder, edible flavors, etc. into the feeding machine according to the product ingredient ratio requirements.
2. Stirring:
   The raw materials enter the mixer and a certain proportion of water is added at the same time. The ratio of water to raw materials is 0.18:1. The mixing process is carried out in closed equipment.
3. Granulation:
   After the raw materials are fully mixed, they enter the cat litter pellet machine for granulation processing to obtain semi-finished plant cat litter with different pellet sizes required by the customer. The granulation process is carried out in closed equipment.
4. Screening:
   The above-mentioned semi-finished products are screened through a vibrating screen. The cat litter production line in Italy project uses classification screening to select cat litter with a size of 1-4mm and enters the next process. The screening process is carried out in a closed equipment.
   The semi-finished plant cat litter whose pellet size does not meet the requirements is screened out and returned to the feeding process for re-production.
5. Drying:
   The granulated plant cat litter enters the microwave drying equipment for drying. The drying process mainly removes moisture from the product without producing waste gas.
6. Packaging and storage:
   The dried plant cat litter is packed with a baler to obtain the required product.

01

Process design of purifier pellet production line

1. Feeding:
   Use manual feeding to add the raw materials attapulgite, activated carbon, grass ash, graphite, etc. into the granulator according to the ratio requirements. At the same time, add a small amount of water. The ratio of water to raw materials is 0. 18. :1, using manual adding method.
2. Granulation:
   Start the granulator to granulate, and obtain the granular purifier of the size required by the customer.
3. Drying:
   The granulated purification agent enters the drum drying kiln for drying. The drum drying kiln uses biomass combustion for heating. The drying process mainly removes moisture in the product and no waste gas is produced.
4. Packaging and warehousing:
   The dried purifier pellets are packaged using a baler to obtain the required product.

According to engineering analysis, no productive wastewater is generated during the 10-12 t/h cat litter production line in Italy project production process. The ratio of project water and raw materials is 0.1:1.

The project plant cat litter raw material consumption is 20,000t/a, and the purification agent raw material consumption is 10,000t/a. Then 3,000t water is needed to prepare the raw materials. This part of the water will be at high temperature during drying. evaporation.

In this expansion, the water curtain dust collector in the granulation process of the existing 10-12 t/h cat litter production line in Italy project will be changed to a bag dust collector. The generated dust will be discharged using a gas collection hood + bag dust collector + 15m exhaust pipe (1#), and a gas collection with enclosure will be used.

The collection efficiency is 95%, the bag dust collector dust removal efficiency is 98%, and the exhaust volume is 5000m3/h. After the expansion is completed, the amount of dust generated by the bentonite cat litter granulation process is 1.684 t/a. After being collected by the air collection hood, the amount of organized dust generated is 1.6t/a.

The generation efficiency is 0.667kg/h, and the generated concentration is 133.4mg/ m3, the organized emission amount of dust after being treated by bag dust collector is 0.032t/a, the emission rate is 0.013kg/h, and the emission concentration is 2.667mg/m3. The unorganized emission is 0.084t/a, and the emission rate is 0.035kg/h. Able to meet emission limits.

Through sound insulation of vibration-reducing and sound-insulating buildings and distance attenuation of factory boundary noise, the "Environmental Noise Emission Standard for Industrial Enterprises at Factory Boundaries" can be achieved.

There is no need to take special prevention and control measures for noise. Through basic vibration reduction, vehicle sound insulation, distance attenuation, etc., the factory boundary noise emission can be achieved to meet the standards.

The solid waste generated during the production and operation of this 10-12 t/h cat litter production line in Italy project is mainly dust collected by bag dust collectors, waste packaging materials and domestic garbage generated in employees' lives. All solid waste in this project will be properly disposed of, and the discharge of solid waste will be zero.

To sum up: all types of pollutants generated during the operation of this project can be discharged up to standards and comprehensively utilized after taking corresponding prevention and control measures.

This 10-12 t/h cat litter production line in Italy project improves efficiency and reduces power consumption by purchasing advanced equipment. Effectively control pollution by taking reasonable and feasible clean production measures in internal management, production process and equipment selection, raw and auxiliary material selection and management, waste recycling, pollution control and other aspects.

The cleaner production plans and measures adopted by the project can greatly reduce energy consumption, material consumption, and water consumption, reduce pollutant emissions, reduce product production costs, and better achieve cleaner production.