Richi Machinery automatic 25t/h feed mill plant renovation and expansion project was put into operation

From January 1, 2021 to mid-July 2021, Richi Machinery currently has undertaken a total of 54 animal feed plant engineering projects, of which feed mill projects with more than 20 tons accounted for 51%. Recently, another project in China has been put into production.

• Feed mill output: 180,000 tons per year
• Feed type of 25t/h feed mill: broiler feed, layer feed, pig feed
• 25T/H animal feed mill project feed ingredients: corn, wheat, soybean meal, meat and bone meal, shellfish meal, bran, rapeseed meal, cotton meal, fish meal, fatty acid, etc.

The 25tph automatic chicken pig animal feed production project is located in Shandong Province, China. The customer completed a 16t/h animal feed factory project with an annual output of 120,000 tons in 2007. This is also the first cooperation between the customer and Richi Machinery. Due to the needs of market development, in May this year, the customer decided to add one animal feed pellet machine, pellet cooler, feed grinder, automatic packaging machine, grading screen, crumbler machine and other animal feed machine in the original workshop.

At the same time, 2t/h coal-fired steam The boiler is changed to a 2t/h natural gas steam boiler. There is no additional feed mill workshop and other buildings, no new labor force, an additional annual output of 60,000 tons of feed capacity, an additional investment of 800,000 yuan (about 120,000 US dollars), and the 25t/h animal feed plant covers an area of ​​24012m². The building area is 14,500m², the annual work is 300 days, the three-shift system, each shift is 8 hours, and it is currently in animal feed production.

25T/H animal feed factory animal feed processing steps we designed for our customers

After the granular raw materials are received, they are cleaned, magnetically separated, and crushed. After reaching the required particle size of the product, they are stored in the batching warehouse. The powdered materials are stored in the batching warehouse after cleaning and magnetic separation.

After weighing, they enter the feed pellet production line mixing process. Directly transferred to the powdered product warehouse, the pwder product needs to be granulated through the feed granulating process. Steam is added to the feed pelletizing process, and the powder is crushed, classified and packaged after cooling by wind. The powdered material produced by the classification is reused in the granulating process.

Granular raw materials receiving section for this 25t/h feed mill factory

Corn, wheat and other granular raw materials are transported by automobiles to the receiving place in the 25 tons per hour pig chicken feed factory, and the raw materials are unloaded to the unloading pit.

Cleaning and magnetic separation for this 25t/h animal feed manufacturing plant

Impurities in feed ingredients not only affect the quality of feed products, but also affect the safety of feed processing equipment, which can cause damage to animal feed processing equipment and affect production, and should be removed. The cleaning equipment is mainly screening. Due to the difference in the particle size of the materials, the feed ingredients are separated from the impurities.

The screening equipment removes the straw, paper, soil blocks, corn leaves, corn cobs, sand and other debris in the raw materials. Magnetic separation can remove iron nails and other iron impurities in the raw materials to prevent equipment damage.

The screening and magnetic separation process is completely sealed, and the raw materials after screening and magnetic separation are loaded into the silo for storage by the bucket elevator. A bag dust removal device is installed on the top of the silo, and the dust generated during the conveying process is processed by the bag dust collector.

Crushing section for this 25t/h poultry livestock feed plant factory

The granular raw materials in the crushing bin are magnetically separated again and enter the crusher from the impeller feeder. The crushed pellets are conveyed by the screw conveyor and lifted to the batching bin by the bucket elevator.

Mixing section for this feed processing plant with 25t/h production capacity According to the requirements of the various component ratios of the feed formula, the various components of the feed are weighed (the process is closed), and they are fully mixed by a high-efficiency feed mixer. The coefficient of variation of the mixing uniformity is less than or equal to 5%, and the feed components meet the requirements.

Part of the material is lifted to the powder silo by the elevator, and part of the material enters the granulation process, in the crushing bin are magnetically separated again and enter the animal feed grinding machine from the impeller feeder. The crushed pellets are conveyed by the screw conveyor and lifted to the batching bin by the bucket elevator.

Granulation section for this 25t/h feed production plant

The steam directly contacts the material, mixes and wets the material, and then drops to the feed granulator to be granulated by extrusion after uniform conditioning. The granular feed formed by compacting a single raw material or a compound mixture by mechanical action and extruding it out of the die hole aims to make use of the heat, moisture and water in the feed pelleting process for the finely crushed, poorly palatable and difficult-to-ship feed.

Compared with powdered feed, pelleted feed can improve feed digestibility; reduce animal picky eaters; more convenient storage and transportation; pelleting by animal feed pelletizer generally increases the bulk density of powdered feed by 40% to 100%; avoids automatic grading of feed ingredients and reduces environmental pollution; At the same time, it kills salmonella in animal feed.

Cooling section in 25t/h animal feed processing plant

During the pelleting process, the initial water content of pellet feed reaches 16%-18%, and the temperature is as high as 75℃-85℃ due to the introduction of steam. Under this condition, pellet feed is easily deformed and broken, and it will also become sticky during storage.

In order to prevent mildew and mildew, the moisture must be reduced to below 14%, and the temperature must be lowered to below 8°C higher than the air temperature. Air cooling is used for project cooling, and the dust generated during the cooling process is treated by a bag filter and discharged outside.

Crumbling section in 25t/h animal broiler chicken pig feed manufacturing plant

The granulation and cooling process forms large granular feed such as bonding, which needs to be crumbled. The process is airtight, and the crumbled material is lifted to a grading screen by a bucket elevator.

Classification section in 25t/h animal feed making plant

The grading screen is a two-layer screen. Large sundries, primary products and other large particles on the sieve are collected through the trash discharge port and recycled to the cooling process. The intermediate sieve is the qualified finished product through the flow tube to the finished product warehouse, and the powder and other small particles under the sieve reflux directly to the granulation process. This process is all airtight.

Packaging (in bulk) for this 25t/h animal feed plant project

The finished product is transported to the finished product temporary storage warehouse, and then is packaged and metered and packaged. The finished product warehouse is airtight. Because the powder and fine materials have been screened during the screening process, the amount of dust generated during the packaging process of the pellets is small. Bulk powder is directly transported by tanker.

It is worth mentioning that due to the strict environmental protection policy of the area where the 25t/h animal feed mill project is located, the environmental protection investment of this 25 tons per hour project is relatively high.

By adopting feasible treatment measures for the pollution generated, it will not cause obvious impact on the surrounding ecological environment. In addition, combined with natural terrain conditions, a combination of centralized greening and scattered greening is adopted to strengthen regional greening.

The non-hardened ground in the project area shall be covered with lawns as much as possible, and corresponding greening measures shall be taken at different locations such as roads. After taking the above measures, it can reduce dust, reduce noise and beautify the environment. In the end, this project passed the EIA stage smoothly.