6-8T/H Tofu and Bentonite Cat Litter Production Line in UK

Project construction content

The cat litter production line in UK project covers an area of 2200m2 and a construction area of 4800m2. The project will build 2 tofu cat litter production lines and 1 bentonite cat litter production line. The project does not have a canteen or dormitory.

The project is built in a standardized factory building with a total of four floors. The first floor is a bentonite cat litter production line, the second floor is a tofu cat litter production line, the third floor is a spare equipment and sundries storage warehouse, and the fourth floor is a raw material starch, fiber and flavor storage warehouse.

Main equipment of the project

The main production equipment of the cat litter production line in UK project is shown in the table below.

Raw material usage and energy consumption

The raw material usage and energy consumption of the cat litter production line in UK project are shown in the table below.

Public works

Water supply project:

The water used for the cat litter production line in UK project comes from the local water supply network. The water used for the project mainly includes production water and domestic water.

• Production water:
  In the production process of bentonite cat litter, water is used to mix the raw materials. The ratio of raw materials to water is 100:1. The project uses 20,000 tons of bentonite, so the water consumption is 200 tons/a; in the production process of tofu cat litter, water is used to dilute the essence.
• Domestic water:
  The total number of laborers in the project is 10. The living water consumption of employees is calculated as 50 liters per person per day, and the water consumption is 0.5 t/d (150 t/a). In summary, the total water consumption of the project is 362 t/a.

Drainage project:

The drainage of the project adopts rainwater and sewage diversion. The project does not generate any production wastewater. The domestic sewage discharge coefficient is calculated as 80%. The domestic sewage generation is 0.4t/d (120t/a). The domestic sewage generated by the project is discharged into the sewage treatment plant through the park pipeline for treatment.

Power supply project:

The project is powered by the local power grid, with an annual power consumption of 50,000 kw·h.

Natural gas consumption:

The natural gas used for drying in the project is supplied through the gas pipeline, with an annual natural gas consumption of 150t/a.

Cat litter production Process flow design

The products processed by the cat litter production line in UK project are bentonite cat litter and tofu cat litter. Therefore, their production processes are different. The following is a detailed description of the process flow:

Bentonite cat litter production process

1. The raw materials for the production of bentonite cat litter are mainly bentonite and water. Bentonite is transported to the factory by car. A bentonite storage silo is set up on the second floor of the factory. The raw materials are packed in ton bags. The ton bags are lifted by an overhead crane, and the bentonite is transported from the ton bags to the storage silo through pipelines.
2. The bentonite cat litter production line is located on the first floor. The raw materials are transported to the mixer and cat litter granulator through pipelines from the discharge port at the bottom of the discharge silo. A small amount of water needs to be added during the mixing process. The ratio of raw materials to water is 100:1. Water is added for mixing and granulation.
3. After granulation, it is transported to the cat litter dryer through a bucket elevator. The heat source of the dryer is natural gas. The drying process is directly heated by natural gas combustion. The drying temperature is 280℃ and the drying time is 0.5h.
4. After drying, turn off the natural gas for natural cooling for 1h. After cooling, the product is sent to the screening machine via a belt conveyor for particle size screening.
   The screening machine has four screens in total. The first screen is for powdered waste, the fourth screen is for waste with a pellet size greater than 4mm, and the second and third screens are for finished products with pellet sizes less than 2mm and 2-4mm respectively.
   The screening process will generate solid waste. After the waste is collected, it is returned to the bentonite manufacturer for processing and reuse.
5. The finished products of the two pellet sizes are transported to the finished product storage bin via a belt conveyor respectively, and then transported to the automatic packaging machine via a belt conveyor for packaging, and then sold after packaging.

Tofu cat litter production process

1. The main raw materials for UK tofu cat litter production line are starch, fiber, flavor and water. The raw materials (except water) are transported to the factory by car. Starch and fiber are stored in bags on the fourth floor of the factory, and flavor is stored in barrels on the fourth floor of the factory.
2. The tofu cat litter production line is located on the second floor. The raw starch and fiber are transported to the mixer through a spiral conveyor. The flavor and water are mixed in proportion (flavor: water = 1:10) and pumped into the mixer through a self-priming pump. The raw materials are stirred in the mixer.
3. The stirred materials are sent to the cat litter pellet machine (diameter is 2mm) through the elevator for pellet mill cutting. The cut materials are transported to the belt dryer through the elevator. The heat source of this drying process is electricity, the drying temperature is 70℃, the drying time is 2h, and the drying is naturally cooled after drying. The cooling time is 0.5h.
4. The dried and cooled materials are sent to the silo through the belt conveyor. The silo outlet is connected to the belt conveyor, and the materials are sent to the screening machine through the belt conveyor.
5. The part above the screen is the finished product and is transported to the automatic packaging machine by belt for packaging and sale. The waste powder under the screen is collected and returned to the raw material process for reuse.

Environmental protection measures

Since the UK has very strict environmental protection standards, we have configured the following environmental protection measures for this cat litter production line in UK project according to customer needs: