As China has increased the development of agriculture, agricultural and sideline products have been increasingly valued by people. The pollution of livestock manure to the environment is getting more and more serious. However, cow dung is rich in nutrients and trace elements and is a good organic fertilizer. The development of cow manure as a composite organic fertilizer can not only turn waste into treasure, but also reduce environmental pollution, prevent the spread of diseases, and have good economic and social benefits.
Compound fertilizer dryer Working principle:
The wet material is sent to the hopper by a belt conveyor or bucket elevator and is fed by the feed port. The main body of the drum dryer is a cylindrical body that is slightly inclined and can be rotated. When the material enters the inside of the cylinder, it is dried in contact with the hot air passing through the cylinder or countercurrent or in effective contact with the heated wall surface. After drying, the product is discharged from the lower end of the other end. During the drying process, the material moves from the high end to the lower end under the force of gravity by means of the slow rotation of the cylinder. The inner wall of the cylinder is provided with a forward copying plate, which continuously picks up and sprinkles the material, so that the thermal contact surface of the material is greatly enhanced, the drying rate is increased, and the material is moved forward. After the heat carrier (hot air, flue gas) dries the material, the dust of the tape is collected by a cyclone and then emptied.
Compound fertilizer dryer Features:
1. The drum is highly mechanized and has a large production capacity and can be continuously operated.
2. The structure is excellent and simple, and the material runs smoothly through the resistance of the cylinder and is easy to operate.
3. Less faults, low maintenance costs, and low power consumption.
4, a wide range of applications, dry powdery, granular, strip-like materials, large operational flexibility, production allows the product output to have large fluctuations, without affecting the quality of the product. The product has good uniformity in drying.
5, easy to clean.
6. The drying temperature is high, the drying strength is large, and the use cost is low.
Compound fertilizer dryer Scope of application:
Mineral products: iron powder, coal, sand, bentonite, titanium concentrate, manganese ore, pyrite, limestone, peat.
Chemical industry: ammonium sulfate, sodium sulfide, Anfu powder, ammonium nitrate, urea, oxalic acid, potassium dichromate, nitrophosphate, calcium magnesium phosphate, compound fertilizer, copper sulfate.
Food industry: glucose, salt, sugar, vitamins, malted milk, granular sugar.
Other: lentils, garbage abrasives, matchsticks, wood chips, distiller's grains.
Spray dryer use precautions:
1. The installed dryer should be tested for no less than 4 hours of empty machine. If abnormal conditions occur during the test operation, it should be handled in time.
2. After the test run is finished, tighten all the connecting bolts again, check and make up the lubricating oil. After the test is turned to normal, the load can be tested.
3. Before the load test machine, the single-machine empty test run of each auxiliary equipment should be carried out. After the single-machine test is successful, it will be transferred to the joint test.
4. Ignite the hot air oven dryer to preheat, and at the same time turn on the dryer, prohibit the cylinder from rotating and prevent the cylinder from bending.
5. According to the preheating situation, gradually add wet materials to the drying cylinder, and gradually increase the feeding amount according to the moisture content of the discharged materials.
6, the dryer preheating needs a process, the hot blast stove should also have a preheating process, prohibiting sudden fires. Prevent local overheating and uneven thermal expansion and damage.
7. The fuel burning value, the quality of each part of the insulation quality, the moisture content of the wet material, the uniformity of the feeding amount, affecting the quality of the dried product, affecting the fuel consumption. Therefore, making each part as good as possible is an effective way to improve economic efficiency.
8. In the working state, the roller frame should be filled with cooling water.
9. All lubrication parts should be refueled in time.
10. When stopping, the hot blast stove should be turned off first, and the drying cylinder should continue to rotate until it is cooled to near the outside temperature.
11. It is forbidden to stop at high temperature to prevent the cylinder from bending and deforming.
12. In case of sudden power failure, the hot air stove should be turned off immediately, stop feeding, and the cylinder should be turned half a turn every 15 minutes until the cylinder cools. This operation procedure should be carefully and professionally responsible. Violation of this procedure will result in bending of the cylinder.
13. Serious bending of the cylinder will make the dryer unable to operate normally.
