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What machines do small feed processing plants need

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What mechanical equipment is needed to open a small feed processing plant? Thanks first!

feed processing equipment is usually selected according to production scale, production varieties and production technology. Therefore, different feed plants often use different equipment. However, some basic equipment for feed processing are consistent. According to the process flow, it generally includes raw material receiving and cleaning equipment, conveying equipment, crushing equipment, batching equipment, mixing equipment, granulation equipment, expansion equipment, liquid spraying equipment, ventilation and dust removal equipment, packaging equipment and central control system

raw material receiving and cleaning equipment mainly includes weighbridge, primary cleaning screen and cylindrical bin

commonly used conveying equipment include screw conveyor, bucket elevator, scraper conveyor, belt conveyor and pneumatic conveying equipment

crushing equipment includes magnetic separator, feeder, crusher, etc. there are many types of crushers, including hammer and claw crushers and micro crushers requiring finer particle size

electronic automatic batching scale is generally adopted for batching equipment; The types of mixers used include horizontal double shaft (single shaft) paddle mixer, horizontal screw mixer, vertical mixer and waist drum mixer for producing premix

granulation equipment includes steam boiler, conditioner, granulator, cooler, grading screen and crusher

expansion equipment includes conditioner and extruder; Liquid spraying equipment includes liquid storage tank, vacuum pump and flowmeter

ventilation and dust removal equipment includes suction fan, brake cron and dust collector; Packaging equipment includes packing scale, sealing machine, etc

the central control system is the “brain” of the whole processing process, and the control systems of various equipment are concentrated here

medium and large feed equipment production line equipment and process flow

1 Raw material cleaning

received bulk raw materials corn and soybean meal; The cleaning process refers to all operation units that put the corn and soybean meal that have passed the inspection of the raw material inspector into the silo. In this process, the impurities in the raw material are removed by impurity removal equipment, and then transported to the silo as planned through receiving equipment and demagnetization equipment. Production line equipment includes receiving device (such as unloading pit, platform, etc.), conveying equipment, primary screening and magnetic separation device (such as permanent magnet cylinder, permanent magnet roller, etc.). The receiving of bagged raw materials means that the loading and unloading personnel unload the raw materials that have passed the inspection of the raw material inspector and store them neatly in the warehouse. Four points should be achieved in the process of receiving goods: 1. Accurately count the quantity; 2. No quality problems of raw materials; 3. The receiving path is correct; 4. The receiving environment is clean

2. Batching process

the batching process is to weigh the raw materials in the batching bin from the feeder under each batching bin to batching according to the formula requirements. After each raw material is weighed by the batching scale, the raw material is transported to the powder storage bin. The ingredients are weighed out from the silo. These weighed raw materials enter the powder silo, add a small amount of materials and premix, and then weigh them manually and put them into the silo for mixing. The quality of batching process directly affects the accuracy of product batching

3. Crushing process

crushing process refers to that the raw materials to be crushed in the silo are sent to the crusher to be crushed into powder, and then sent to the silo for mixing by the conveyor. The purpose of this process is to control the particle size of the material. The design efficiency of the crusher in this process determines the capacity of the process equipment, and it is also the process with the largest energy consumption in the production of powdery materials. Monitor and confirm the hammer, screen, current, noise and crushing path at any time

4. Mixing process

in the mixing process, all kinds of crushed raw materials are discharged into the mixer from the mixing bin, and oil is added to the feed in the mixer through the liquid adding system as needed to make each component mix evenly and achieve the required mixing effect. Uniformity. The materials discharged from the mixer are finished products, which are directly sent to the packaging process of finished products for packaging and delivery. When producing pellet feed, the mixed powder is sent to the silo for granulation. In order to ensure the efficiency of the mixer, the maintenance personnel must regularly check and repair the equipment and test the efficiency of the mixer regularly

5. Granulation process

the mixed materials are sent to the compression chamber of the granulator after magnetic separation and conditioning from the granulation bin, compressed into granular feed, cooled by the cooling tower and screened by the screening equipment to obtain standard particles. The granulator must be cleaned regularly to prevent impurities from damaging the granulator. During conditioning, the amount of steam shall be adjusted according to the requirements of particle variety, and the ring mold (aperture, compression ratio, material, etc.) shall be selected according to the requirements of particle process quality. During cooling, the cooling tower shall be adjusted according to the variety, indoor temperature and humidity, season and other factors to achieve qualified particle temperature and humidity. Adjust the cooling tower according to the variety, indoor temperature and humidity, season and other factors to achieve qualified particle temperature and humidity

6. Finished product packaging process

feed is weighed from the finished product warehouse through the packaging scale, loaded into the packaging bag, then the packer inserts the label and seals it, and then transported to the warehouse by the transport vehicle for stacking

with the continuous development of aquaculture, there are many specialized farmers and villages in rural areas, resulting in an increasing demand for feed. Here are some opinions on the establishment of small feed processing plants in rural areas
(I) to carry out feasibility analysis and establish feed processing plants in rural areas, we must first conduct careful investigation, and then carry out economic analysis and technical demonstration on this basis. Only when the feeding industry needs good economic benefits, master the advanced feed processing and preparation technology, and comply with the local spirit of “comprehensive planning, overall arrangement, adjusting measures to local conditions and reasonable layout”, can the factory be invested and built
(II) pay attention to the selection of plant site. The plant site should follow the principle of “processing nearby”, and priority should be given to the location of towns with sufficient feed resources, developed animal husbandry, convenient transportation, guaranteed power and markets, or villages with a certain scale of specialized breeding households. If the feed factory is built near the grain depot or integrated with the grain depot, the housing facilities and corresponding expenses for raw grain storage can be saved
feed processing plants should not be built in places with toxic, harmful, pathogenic gas or dust pollution, let alone near livestock and poultry farms, pesticide plants, sewage treatment plants and other places
(III) scientifically determining the construction scale and production scale is the basis for the design of feed processing plant. The production scale shall be determined according to the
feed demand in the supply area. The daily demand for feed can generally be calculated according to 0.15kg per day for laying hens and 1.75kg per day for pigs, and then the annual demand for feed can be calculated according to the total number of livestock and poultry in the supply area, so as to determine the production scale of the plant. For example, a single shift with an annual output of 1000 tons can feed 20000 laying hens or 1500 pigs
according to the local power supply situation, we should first determine whether it is one shift production or two shift production. For example, for a compound feed plant with an annual output of 4000 tons, if it is produced in one shift, only the equipment with a productivity of 2 tons /hour needs to be selected; if it is produced in two shifts, only the equipment with a productivity of 1 ton /hour needs to be selected. In order to give full play to the production capacity of equipment and improve economic benefits, under the condition of guaranteed power, two shift production is generally appropriate. In addition, the current domestic common saying is that if the equipment productivity is 1 ton /hour, the annual production capacity is 2000 tons, which is one shift production, and the equipment annual time base is based on 2000 hours. Therefore, according to the production capacity of the equipment and further considering the development plan of the local breeding industry or the current breeding scale, the ton level of the equipment can be selected according to local conditions, so as to scientifically determine the scale of the plant
(IV) before the plant is built, the corresponding complete set of feed processing equipment shall be selected according to the determined production scale. The following problems should be considered when selecting:
1. Selection of unit process flow: whether the selection of unit process flow is reasonable or not is closely related to the investment, energy consumption, use and maintenance convenience of equipment and plant. For small-scale feed processing plants in rural areas, the equipment is simple, so the selection of process flow is required to be reasonable, simple and applicable. Generally, the following three forms should be selected in rural areas. (1) Continuous proportional measurement – crushing – mixing; (2) Batch metering – crushing – mixing; (3) Crushing – batch metering – combination
2. Selection of unit metering form: there are two metering forms: volumetric metering and weight metering. The advantage of volumetric metering is to save labor, but it is not easy to change the formula; The weight measurement accuracy is high, and it is convenient to change the formula. Therefore, it is more accurate and convenient to use manual weighing in general small feed processing plants
3. Unit selection: the unit suitable for rural feed processing plants should have the following characteristics: (1) the formula is easy to change, the proportion measurement is accurate, the mixing uniformity is good, and the feed particle size is adjustable. (2) The unit has reasonable process flow, simple structure, convenient operation, easy maintenance, compact overall layout and small floor area. (3) Low noise, less dust, and the unit shall be equipped with safety control device. (4) Low energy consumption, low price, and easy to buy accessories
at present, there are four basic series of feed processing equipment produced in China. There are feed processing units with hourly productivity of 50, 100, 200, 300, 400, 500, 600, 700, 800, 1000, 1500, 2000, 3000 and 5000 kg in the complete set of equipment. Generally, small feed processing units are mainly composed of crushers and mixers, which are basically calculated by manual weighing
to sum up, for units with the same production rate, the technical and economic indicators should be compared from the aspects of installed capacity, batching and metering mode, power consumption, equipment price, required plant area, etc., and a comprehensive analysis should be carried out to select the required units. According to the investigation and work experience, the author believes that the complete set of equipment with a productivity of 400 ~ 1000 kg /h should be selected for the establishment of small feed processing plants in rural areas

pulverizer, mixer, granulator (steam boiler is optional), cooling equipment (fan, shackle, counter flow cooler), packaging machine (full-automatic computer metering packaging scale or manual metering sewing scale)
the specific price is based on your output and specific requirements, and the production process is the same. There are some auxiliary devices that are not written in it.

shredder and agitator are essential!

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