3.5–4.5 T/H Sugar Beet Waste Dryer in Hungary

Why the Project Is Located Near Kaposvár

Hungary still has an active sugar beet industry, but processing is highly concentrated. A dryer project based on sugar beet pulp therefore needs to be located around an actual beet-processing supply chain rather than placed in an arbitrary agricultural region.

The customer receives pressed pulp during the sugar campaign and dries part of the material for longer storage and wider distribution. Pressed pulp that is sold locally can remain wet or be ensiled, while the portion intended for dried-feed customers enters the rotary drying section.

This allows the processor to use the dryer only where moisture removal creates a real commercial advantage instead of drying every tonne produced during the campaign.

Rotary Dryer Project Configuration

The 30 kW figure is the mechanical drive power for rotating the drum. It is not the thermal duty of the drying system. Heat demand is determined separately from wet-feed rate, incoming moisture, required final moisture, air conditions and heat-source efficiency.

Pressed Beet Pulp Contains Much More Water Than the Final Feed

Pressed sugar beet pulp normally contains only about one-quarter dry matter, which means most of the incoming weight is water. This distinction is essential when selecting a dryer because wet-feed tonnes per hour cannot be treated as dried-product tonnes per hour.

For example, 4 T/H of pressed pulp at approximately 25% dry matter contains roughly 1 tonne of solids and 3 tonnes of water. If the final dried material contains about 11% moisture, those solids produce only around 1.1 tonnes of finished material. Close to 2.9 tonnes of water must be evaporated during the process.

This is why the project is specified using three separate capacities: wet feed, water evaporation and dry product output.

The Dryer Is Sized from Evaporation Load

The customer does not select the φ1.8×18 dryer simply because the drum is 1.8 meters in diameter. The primary engineering calculation starts with how much water must be removed per hour.

At the lower end of the project range, approximately 3.5 T/H of pressed pulp generates close to 2.5 T/H of evaporation load. At the upper end, approximately 4.5 T/H requires roughly 3.2 T/H of water removal when inlet dry matter and final moisture remain within the project range.

If incoming pulp becomes wetter, the same dryer may need a lower wet-feed rate. Conversely, better mechanical pressing before drying can reduce thermal load because less water must be removed by evaporation.

Mechanical Dewatering Comes Before Thermal Drying

Using heat to remove water is more energy-intensive than removing free water mechanically. The customer's operating strategy therefore starts with properly pressed beet pulp rather than very wet fresh pulp directly from extraction.

Incoming material is checked for moisture and physical condition before the dryer feed rate is set. Where mechanical pressing has produced lower dry matter than expected, operators reduce dryer throughput or improve upstream dewatering instead of forcing more wet material through the drum.

This distinction also explains why a dryer rated at 3.5–4.5 T/H wet feed should not be marketed as a universal 4 T/H machine regardless of incoming moisture.

Drying Temperature Is Controlled Around the Product

The project does not rely on one fixed inlet-gas temperature or residence time for every tonne of beet pulp. Hot-air temperature, airflow and drum loading are adjusted according to incoming moisture and actual outlet condition.

The objective is to remove the required water without unnecessarily overheating the dried feed. Excessive thermal exposure can darken the product and alter feed quality, while insufficient drying leaves material with poor storage stability.

Operators therefore monitor feed moisture, outlet moisture, exhaust condition and product appearance together. Drum rotation controls material movement, but residence time is not treated as one universal value independent of feed rate and moisture.

Why the Final Moisture Target Is Around 10–12%

The dried beet pulp is intended for storage and subsequent use as a commercial feed ingredient. Reducing moisture from roughly 75% to around 10–12% dramatically changes storage and transportation characteristics.

The lower moisture reduces the mass of water transported with the product and improves storage stability compared with unpreserved pressed pulp. The material still needs to be cooled before long-term storage or packaging because warm dried product can create condensation when placed into enclosed bins or bags too early.

The final moisture target is therefore linked to downstream storage and feed handling, not simply to achieving the lowest possible moisture number.

Dried Beet Pulp Is a Dairy Feed Ingredient, Not a Complete Feed

The customer's actual downstream product is dried sugar beet pulp for dairy cattle feeding. Beet pulp provides digestible fiber and energy but is not a nutritionally complete cattle ration by itself.

Dairy farms or compound-feed manufacturers combine the dried pulp with forage, protein ingredients, minerals and other ration components according to nutrition requirements. The dryer does not improve protein content or create additional nutrients; it primarily removes water and converts a highly perishable wet by-product into a more transportable and storable feed ingredient.

This project therefore avoids claims that drying automatically increases milk production, feed conversion or animal health.

Cooling and Storage Follow the Rotary Dryer

Material leaving the rotary drum remains warm. The customer's existing downstream cooling equipment lowers product temperature before storage. This step is separate from drying and is important for preventing condensation in finished-product bins.

After cooling, the dried beet pulp can be stored as bulk material or directed to further size control and packaging according to customer requirements. Dust collection is provided around transfer points because dry beet pulp can generate fines during conveying.

The complete project route is pressed beet pulp receiving → moisture check → controlled feeding → φ1.8×18 rotary drying → cooling → finished-product storage and dispatch.

Seasonal Sugar Campaigns Affect Dryer Operation

Sugar beet processing is seasonal, so the dryer does not necessarily operate at the same load throughout the year. During the beet campaign, wet pulp supply can be concentrated into a relatively short period, making wet-material buffering and drying schedules important.

The customer therefore sizes receiving and intermediate storage around expected daily pulp supply rather than the dryer capacity alone. If incoming wet pulp temporarily exceeds the 3.5–4.5 T/H dryer range, feedstock must be managed through planned storage, ensiling or adjusted operating hours rather than overloading the drum.

Shipping the Dryer through the Northern Adriatic

The Sugar Beet Waste Dryer in Hungary is prepared for export from Qingdao, China, in modular sections because the rotary drum is substantially larger than a standard single-machine crate. Rijeka in Croatia provides a practical northern Adriatic gateway for inland delivery toward southwestern Hungary.

Before shipment, RICHI reviews the drum foundation, support rollers, hot-air system, feed conveyor, exhaust and dust-control arrangement, electrical supply, cooling interface and available installation space. The 30 kW drum motor is only one part of the utility review; thermal energy and fan requirements must be sized separately.

What to Confirm Before Selecting a Sugar Beet Pulp Dryer

• wet pulp tonnes per hour;
• actual incoming moisture or dry-matter percentage;
• required final moisture;
• target dried-product output;
• required water evaporation per hour;
• mechanical pressing or dewatering available upstream;
• heat source and local energy conditions;
• cooling, storage and dust-control equipment downstream.

A 3.5–4.5 T/H Sugar Beet Waste Dryer in Hungary

This Sugar Beet Waste Dryer in Hungary project uses one φ1.8×18 single-pass rotary dryer with a 30 kW drum drive near Kaposvár. Pressed sugar beet pulp enters at approximately 74–76% moisture and a wet-feed rate of around 3.5–4.5 T/H. The system evaporates approximately 2.5–3.2 T/H of water and produces roughly 1.0–1.3 T/H of dried beet pulp at approximately 10–12% final moisture.

For another sugar or feed by-product processor evaluating a dryer, RICHI Machinery needs the wet-feed T/H, measured dry matter, target final moisture, operating hours, heat source and downstream cooling and storage configuration. Those figures determine the real evaporation load and dryer size far more reliably than selecting equipment from wet tonnage alone.