Capacity configuration affects the cost of equipment, labor costs, site costs, operating costs of the four major blocks, can not be said.
Feed processing equipment is usually based on the scale of production, production varieties, production process to choose. Therefore, different feed mills tend to use different equipment. But some of the basic equipment for feed processing are the same, according to the process flow largely including 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 weighbridge, the first clear screen and cylindrical silo, etc.;
Conveying equipment commonly used screw conveyor, bucket elevator, scraper conveyor, belt conveyor and pneumatic conveying equipment;
Pulverizing equipment, including magnetic separators, feeders, pulverizers, etc., which are many types of pulverizers, commonly used hammer and claw pulverizers, as well as Micro pulverizers that require finer particle size;
Batching equipment generally uses electronic automatic batching scales; the types of mixers used are horizontal double-axis (single-axis) paddle mixer, horizontal screw mixer, vertical mixer and production of pre-mixed drum mixer;
Pelleting equipment includes steam boilers, tempering, pelletizing, cooling, grading sieve and crusher;
Expansion equipment, including tempering and puffing machine; liquid spray equipment, including liquid tanks, vacuum pumps and flow meters;
Ventilation and dust removal equipment, including suction fans, Shaklon and dust collector, etc.; packaging equipment, including baling scales, sealing machines, etc.;
The central control system is the whole process of the "brains" The center control system is the "brain" of the whole process, and the control systems of all kinds of equipments are concentrated here.
Medium and large-scale feed equipment production line equipment and process
1. Raw material cleaning
Received bulk raw materials corn and soybean meal; cleaning process is through the raw material inspector inspection of corn and soybean meal into the silo of all the operating units. In this process, impurities are first removed from the raw materials using decontamination equipment, and then conveyed to the silos on a scheduled basis through receiving equipment and demagnetization equipment. The production line equipment includes receiving equipment (e.g., unloading pits, platforms, etc.), conveying equipment, primary cleaning screens, and magnetic separation equipment (e.g., permanent magnetic cylinders, permanent magnetic drums, etc.). For the reception of bagged raw materials, it means that the handling personnel will unload the raw materials that are qualified by the raw material inspector and store them neatly in the warehouse. In the receiving process to achieve four points: 1, accurate counting of quantities; 2, raw materials without quality problems; 3, receiving the correct path; 4, receiving a clean environment.
2. Batching process
The batching process is to weigh the raw materials in the batching silo from the feeder under each batching silo to the batching according to the recipe requirements. Each raw material is weighed by the dosage scale and then the raw material is conveyed to the powder storage bin. The ingredients are weighed from the silo, and these weighed raw materials go into the powder storage bin, adding a small amount of material and premix directly and manually weighed into the silo and mixed. The quality of the dosing process directly affects the accuracy of the product dosing.
3. Crushing process
Crushing process means 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 through the conveyor to be mixed and used. 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 is the most energy intensive process in the production of powdered materials. Always monitor and confirm the hammer blade, screen, current, noise and crushing path .
4. Mixing process
In the mixing process, the crushed various raw materials are discharged from the mixing silo into the mixer, and the grease is added to the feed in the mixer through the liquid addition system as needed to make the components mix well and achieve the desired mixing effect. Homogeneity. The material discharged from the mixer is the finished product, which is directly sent to the packing process of the finished product for packing and leaving the factory. When producing pellet feed, the mixed powder is sent to the silo for pelletizing. In order to ensure the efficiency of the mixer, the maintenance personnel must check and repair the equipment regularly and test the efficiency of the mixer periodically.
5. Pelleting process
Mixed materials from the pelletizing silo are tempered by magnetic separation and sent to the pelletizer compression chamber, compressed into pellet feed, cooled by the cooling tower, and sifted by the sieving equipment to get the standard pellets. Magnetic separation equipment must be cleaned regularly to prevent damage to the granulator caused by iron impurities. Tempering should be adjusted according to the requirements of the pellet species to adjust the amount of steam, according to the requirements of the quality of the pellet process to select the ring die (aperture, compression ratio, material, etc.), cooling should be adjusted according to the species, indoor temperature and humidity, seasonal and other factors to adjust the cooling tower, to achieve a qualified pellet temperature and humidity. According to the variety, indoor temperature and humidity, season and other factors to adjust the cooling tower 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 bags, then inserted into the label and sealed by the packer, and then transported to the warehouse by the transportation truck for stacking.