Potassium Fertilizer Granulator
Potassium Fertilizer Granulator adopts dry rolling technology, so it is also called dry rolling granulator. Turn the flake-like materials into granular materials that meet the requirements of use. Dry roller compaction granulation mainly depends on external pressure mode, so that the material is forced through the gap between two relatively rotating roller wheels, and is forced to compress into pieces. In the process of roller compaction, the actual density of the material can increase 1.5~3 times, so as to meet the specific particle strength requirements.
Potassium Fertilizer Granulator Development Prospects:
Powder granulation technology, as a main branch of powder and granule process processing, has become increasingly important with the rapid development of modern industry and the improvement of automation in production processes. “Powder product granulation” has become an inevitable trend in the world’s powder post-processing technology. The significance of granule processing of powder products is mainly reflected in several aspects:
1. The quality of various powder raw materials decreases, and impurities must be removed after grinding, and then high-grade materials are granulated.
2. Environmental factors, including the handling of recycled dust and the use of coarser-grained charge to avoid air pollution from dust and fumes.
3. Automated high-intensity production requires the feedstock to have good fluidity.
4. Modern food is developing towards instant or convenience.
5. Reduce dust pollution and improve working conditions.
6. Meet the production process requirements, such as increasing porosity and specific surface area, improving heat transfer, etc.
7. Improve the physical properties of the product (such as fluidity, air permeability, bulk density) to avoid segregation, pulsation, agglomeration, bridging, etc. Adverse effects, reduce pollution, improve appearance, improve fluidity, facilitate storage and transportation, control solubility, control porosity and specific surface area, etc., create conditions for improving the automation of production and use processes and closed operations.
8. The high development of agriculture requires the use of high-quality fertilizers, slow application and controlled application of fertilizers to improve the quality of fertilizers, and non-granular fertilizers are inconvenient for mechanical automatic fertilization, which is prone to bad agglomeration.
The working principle of Potassium Fertilizer Granulator
The raw materials are evenly fed into the feeding hopper by the quantitative feeder. The lapping machine uses pairs of rollers with hole holes, leaving a certain gap between each other, and the two rotate in reverse at the same speed. One set of roller bearing seats is stationary in the frame, while the other set of roller bearing seats swims on the guide rail of the frame and is pressed close to each other by the pressure of hydraulic cylinders. Many holes of the same shape and size are regularly arranged on the surface of the roll, and the trough is aligned with the trough. At this time, the dry powdery material from above the two rolls continuously and evenly by self-weight and forced feeding between the two rolls, the material first for free flow, into the biting zone is gradually bitten by the roll into the trough. With the continuous rotation of the roller, the space occupied by the material is gradually reduced and gradually compressed, and to reach the maximum value of the forming pressure. Then the pressure is gradually reduced, the pressure of the block due to elastic recovery and weight and fall off the hole hole and into the crushing of the whole grain, screening device, the finished product is granular qualified products, weighing packaging. The fine powder and unqualified super-large particles from the powder mouth are re-entered into the hoist feeding mouth with fresh materials mixed into the pre-feeding hopper and enter the next round of technological process.
Potassium Fertilizer Granulator Applicable Materials:
Fertilizers: potassium sulfate, potassium chloride, Russian red potassium, compound fertilizer, ammonium chloride, potassium nitrate, monoammonium phosphate, diammonium phosphate, ammonium sulfate, ammonium bicarbonate.
Powder material: antioxidant, bromochlorohydantoin, sodium cyanide, sodium dichloroisocyanurate, sodium trichloroisocyanurate, cyanuric acid, bleaching powder, zinc oxide, lead oxide, potassium carbonate, strontium carbonate, Calcium chloride, calcium hydrogen phosphate, sodium metasilicate, sodium orthosilicate, cryolite, aluminum fluoride, brake powder, rubber and plastic additives, silica, calcium aluminate, heavy calcium, ordinary calcium, carnallite , phosphate rock powder, metal powder, fillers, feed additives, arthropodoline, niacin, nicotinic acid amine, pharmaceutical intermediates, steelmaking aids, snow melting agents, swelling, alumina powder, phosphogypsum, desulfurization gypsum, mineral processing agents, environmentally friendly materials, graphite, carbon black, etc.
Potassium Fertilizer Granulator Structural Advantages
Advanced power system: The use of enlarged double-shaft output special reducer and drum gear coupling can effectively protect the roll and the main bearing from damage, improve the transmission efficiency, and further increase the output of the product.
Optimized frame structure: The new frame is designed according to the optimized calculation of ergonomics. It is equipped with a large door structure close to the rollers and a top working platform that is convenient for personnel to operate, fully satisfying customers’ requirements for equipment safety, reliability, and convenient maintenance. sexual demands.
High-efficiency and durable alloy steel roll: The roll parent body is made of high-quality alloy steel by integral forging, which is widely suitable for various complex material conditions. In the design of the wear-resistant layer on the roll surface, according to the Hertzian contact theory and the pure elasticity theory, we have mastered the law of the maximum mechanical stress action depth, and scientifically combined the materials of the tear-proof layer, transition layer and wear-resistant layer, as well as The hardness matching and the improvement of the heat treatment process have greatly improved the crack resistance and wear resistance of the roll surface. After repeated tests, comparisons, and thanks to the technical improvement of other components (such as the feeding device), the final shaped roller surface pattern can make the pull-in angle of the material more balanced and stable, and can effectively eliminate the axial force of the roller. , to make the device work more stable.
New feeding device: The newly designed feeding device is equipped with a regulating valve plate, which can easily realize online adjustment. The addition of an air expansion chamber enables the air entrained in the material to be discharged smoothly and improves the occlusion of the material between the rolls. The technical improvement of the feeding device also directly leads to the improvement of the roll surface pattern.
Simple and safe hydraulic system: In the design of hydraulic system, we not only consider it as a power source, but also make it have the function of protecting equipment. Multiple automatic protection functions are designed, and the optimized hydraulic system makes the moving roller more adaptable, which can effectively eliminate the accidental mixed iron and protect the safe operation of the equipment. The hydraulic system of modular and integrated design abandons the complicated and redundant pipelines, reduces the floor space, and makes the whole equipment appear simple, beautiful and efficient.
Intelligent online control system: The operation of the roller press adopts online control technology, which can conveniently and intuitively set the working parameters of the equipment, detect and control the running status of the equipment online, and provide real-time decision-making information to the controller. With its help, our roller granulator works more stably.
Efficient crushing and granulating machine system: The crusher is divided into two stages, which can crush the block material pressed by the rolling sheet twice, and has three crushing chambers, which greatly increases the crushing area, so the crusher effectively improves the crushing efficiency and yield.
Superior screening system: The machine has the advantages of small vibration, low noise, and low requirements for the strength of the support, and combines the advantages of circular motion, elliptical motion and reciprocating linear motion, and is equipped with a screen surface cleaning device, so the machine Large output, high screening efficiency, low power consumption, flexible installation, and convenient screen replacement.
Potassium Fertilizer Granulator single unit structure:
1. Pre-feeding hopper: feeding hopper with mechanical vibration, automatic control and timing vibration.
2. Quantitative feeder: frequency conversion speed regulation is adopted to ensure feeding accuracy.
3. Forced feeding screw feeding hopper: It is composed of a variable frequency speed regulating motor, a conical screw, a stirring knife tooth, a conical feeding hopper with a sight glass window, and a combination of feeding ports. Its function is to further complete degassing and pressure feeding. .
4. Sheet rolling machine: It consists of left and right fixed bearing seat and sliding bearing seat, frame structure, two alloy steel rollers, two hydraulic oil cylinders, electric automatic pump station, special reducer for hard tooth surface and main motor.
5. Crushing and granulating machine: The crushing and granulating chamber is composed of a shredding box, a shredding spindle and a special rotating blade. The motor drives the spindle to rotate at a high speed, and crushes the extruded materials into granules.
6. Vibrating grading screen: with anti-blocking screen device, it is convenient to clean the screen. The crushed powder from the crusher is screened into granular products and recycled powder.
7. Feeding auger: convey the unqualified powdery materials returned by the vibrating grading screen to the feeding elevator.
8. Bucket elevator: The upper and lower sprockets adopt an assembled structure for conveying materials.
9. Electric control cabinet: It is composed of electric control box, frequency conversion speed controller, ammeter, voltmeter, indicator light, button switch, voltage transfer switch and other electrical components. All electrical appliances are controlled and operated centrally.