Problems encountered in the production of roller extrusion granulator

nstallation and commissioning of the roller granulator: 1. Installation: After the granulator arrives at the factory, use the granulator as the host. It depends on the number of units and is installed in conjunction with the process flow. Find out the elevation and horizontal placement. The machine frame has ground corner holes and can be installed. On concrete (the amount of solid vibration is not large and does not require a strong concrete foundation). 2. Debugging: The machine has been debugged before leaving the factory, and it still needs to be debugged after trial. (1)Press roll gap adjustment

Sometimes production or bite angle is needed in production. At this time, you can increase the distance between two to make the distance between the active shaft roller and the passive shaft roller. The steps are as follows: stop, remove the two ends of the passive shaft gland, Rotate the two inner eccentric sleeves in the same direction, one position at a time. The two rollers cannot collide between the two rollers, and should be kept between 0.3-1mm. (2) The alignment adjustment of the ball and socket

The ball socket is formed by the concave socket on the surface of the main roller, so there is the problem of axial alignment and circumferential alignment; A.The axial alignment has been adjusted during installation. Generally speaking, the possibility of adjustment is not great. When adjustment is required, tighten or loosen the glands on both sides of the passive bearing seat to push the displacement of the eccentric sleeve to be in phase with the active shaft roller. B.Circumferential counterpoint

The steps of circumferential alignment are as follows: loosen the 6 connecting bolts of the passive gear and the adjusting sleeve, so that the adjusting sleeve and the passive gear are slightly disengaged, because a ball and socket adjustment has been set in the design, and there are two adjustments. Bolt, so the dislocation can be adjusted regardless of the dislocation. Because the ball socket is too small, the carton board is placed between the two rollers during adjustment. After rolling, it can be seen whether the adjustment has achieved the purpose. Generally, the driven shaft roller should be one quarter ahead of the active shaft roller. After alignment, 8 bolts can be tightened. Precautions for the operation of the roller extrusion granulator machine for fertilizer: 1. The machine should be started under no load, and it is strictly forbidden to open it with materials. 2. It is strictly forbidden to enter the material with iron in order to avoid breaking the roller. 3. Apply yellow dry oil to the gear before starting. 4. Apply yellow dry oil to the chain and sprocket every 7 days.

Modification plan of disc granulation compound fertilizer production line

The compound fertilizer production line produced by the disc granulator machine for fertilizer has a low spheroidization rate, so it is necessary to implement a technical transformation plan for the disc granulator equipment. Technical Transformation of Disc Granulation Compound Fertilizer Production Line 1. Reasons for the low ball formation rate of the compound fertilizer production line (1) The angle of the disc granulation plate and the arrangement of the scraper plate are unreasonable; (2) The dry humidity of the raw materials is unstable, and the moisture content is difficult to grasp; (3) The amount of binder is unstable or the quality is not good enough Transformation measures of the disc fertilizer granulator machine: (1) Adjust the angle of the pelletizing plate (2) The dry humidity of the raw materials should be kept stable, moisture-proof and rain-proof (3) Choose an adhesive with strong adhesion, and the dosage should be determined according to the size of the raw material and the amount of powder surface 2. Serious reasons for the drying machine sticking to the wall (1) The temperature at the inlet of the dryer is too high, which causes the heat-sensitive substance (such as urea) in the dried substance to melt and increase the viscosity (2) The structure and arrangement of the lifting plate inside the drying cylinder are inappropriate (3) Due to the unreasonable internal layout of the drying cylinder, the resistance is large and the material

Maintenance of  fertilizer disc granulator machine

The disc granulator is one of the compound fertilizer granulator machine products of Zhengzhou Huaqiang Heavy Industry. It has a new and reasonable structure, reduced weight, lower height, flexible and convenient process layout, and is suitable for the transformation of old factories. So how to maintain and maintain the compound fertilizer equipment disc granulator in the daily operation process? The following is a detailed introduction to you:

1. Because the grease will gradually become dirty and deteriorated during use, the lubricating ability will be reduced; at the same time, the substances under wear will gradually increase, and the phenomenon of abrasive wear will become more and more serious, which will increase the wear of the steering gear. Every 100,000 kilometers or so, the steering gear should be thoroughly maintained, cleaned, and refilled with grease. 2. ​​The operating conditions of the steering gear are bad and the load to bear is large. Special grease must be used for the disc granulator machine for fertilizer. Ordinary grease cannot meet the requirements for use. 3. The clearance of the steering gear will gradually increase during use. If the left and right idle stroke of the steering wheel exceeds 15 degrees, the steering gear must be inspected. If the gear rack is abnormally worn and severely worn, the steering gear assembly must be replaced; if there is no abnormal wear, but the gap is too large and can be adjusted. The adjustment should be carried out by trained professionals at the service station. After adjustment, ensure that the steering wheel can be driven to the left and right to the extreme position, with uniform strength and flexible rotation. 4. Do not arbitrarily carry out the maintenance and maintenance of the steering wheel in a roadside shop with poor equipment and low technical level. Improper adjustment of the steering gear may cause jamming, endangering driving and personal safety. 

How does the organic fertilizer granulator make granulation?

How does the organic fertilizer granulator make granulation? The granulation by the fertilizer granulator machine is a granulation process based on the production of biological fertilizers and organic matter. The cellulose accounts for a relatively large proportion and the formation conditions are relatively poor. During the use process, it can cause the function of the fertilizer to produce fine living bacteria. The advantages of high temperature and other aspects should not be touched in the production process. The granulation method is not suitable for the granulation method of disc granules and trans-strand granules. This is because these two granulation processes require relatively high crushing fineness of raw materials, and the granulation water is relatively high. The water content should reach about 30%. Because this method has a relatively large drying consistency, the effective bacteria loss is also relatively large, and the molding rate is relatively low, generally about 60% to 70%. Moreover, the dust in the production process is relatively large, and the operating environment is relatively poor. Therefore, in the production process, the production of organic fertilizers and biological fertilizers should be relatively good. The production environment of the extrusion method should be relatively good. Environmental extrusion has low requirements for raw material crushing, high molding rate (above 95%), and low water content of the particles after opening. , The drying load is very small, which can reduce the loss of effective bacteria, and the dust is small and the operating environment is better. 90 tons of compound fertilizer raw materials are extruded and granulated. The raw materials enter the granulator machine for fertilizer, add appropriate amount of water or steam, and bond them into granules. After granulation, the materials are sent to the dryer through the belt conveyor for drying. The particle diameter is 3.0-4.0mm, and the granulation rate is greater than 70%.

The difference between granular organic fertilizer and powder organic fertilizer equipment

Compared with the simple process of powdered fertilizer, granular organic fertilizer requires further processing. The basic process configuration of granular organic fertilizer equipment is dehydration, drying, fermentation, crushing, stirring, granulation, cooling, and packaging. It is necessary to configure an fertilizer granulator machine, an organic fertilizer dryer, an organic fertilizer coating machine, and after granulation After being mechanically cooled, it can be packaged, stored or sold.Process system equipment of organic fertilizer production process.

1. Fermentation system: The fermentation system of the organic fertilizer equipment process flow is composed of a feed conveyor, a biological deodorizer, a mixing mixer, a proprietary lifting turning machine and an electrical automatic control system;

2. Crushing system: including a new type of semi-wet material crusher, LP chain crusher or cage crusher, etc.

3. The mixing system consists of optional horizontal mixer or pan mixer, vibrating screen, mobile belt conveyor, etc.

4. The organic fertilizer granulation system requires granulator equipment. The optional granulator equipment includes: drum granulator, organic fertilizer compound fertilizer combination granulator, roller granulator, disc granulator, organic fertilizer special Granulator, rounding machine, etc.

Maintenance and cleaning method of fertilizer drum granulator

The organic fertilizer drum granulator has a wide range of applications, especially for the granulation of light and fine powder materials. The finer the basic particles of the fine powder material, the higher the sphericity of the particles, and the better the quality of the pellets.

The qualified granulation rate of the drum organic fertilizer granulator machine is as high as 80-90% or more, which is suitable for a variety of different formulas. The compressive strength of the fertilizer is higher than that of the disc and the drum, the large ball rate is less than 15%, and the uniformity of the particle size can be determined according to The user requires adjustment through the stepless speed regulation function of this machine. The organic fertilizer granulation equipment is most suitable for the direct granulation of fertilizer after fermentation, which saves the drying process and greatly reduces the manufacturing cost.

Maintenance of the drum granulator machine for fertilizer:

1. Lubrication: The shaft bears the full load of the negative machine, so good lubrication has a great relationship with the life of the bearing. The organic fertilizer granulation equipment directly affects the life and operation rate of the machine, so the injected lubricating oil must be clean. The seal must be good, and the main oil injection point is the rotating bearing, the roller bearing, all the gear movable bearings, and the sliding plane. The newly installed wheel tyres are prone to loosening and must be checked frequently.

2. Check all parts: The organic fertilizer granulator should pay attention to whether all parts of the machine are working properly. Pay attention to check the degree of wear of easily worn parts, and the new organic fertilizer granulator should pay attention to replacing worn parts at any time. On the plane of the bottom frame of the movable device, dust and other objects should be removed to prevent the movable bearing from moving on the bottom frame when the machine encounters unbreakable materials, which may cause serious accidents.

3. Rotating gear inspection: If the rotating gear in the organic fertilizer granulation equipment is running, if there is an impact sound, it should be stopped immediately for inspection and eliminated. The nutrient content of the product particles is equal due to chemical synthesis and granulation. It is the same as the label, which can simultaneously provide crops with nitrogen, phosphorus, potassium and other nutrients in a certain proportion. The compound fertilizer production line ensures the balanced growth of crops.

compound fertilizer equipment granulation process

1.Compound fertilizer equipment processing organic fertilizer 　

Although it is organic fertilizer, compound fertilizer equipment is also suitable for the processing of such products. First, ferment the organic raw materials such as feces. During this period, the fermentation period can be shortened by adding fermentation bacteria. If the material has large moisture content, you can use a dehydrator to reduce the moisture content, or mix with dry straw powder to reduce the moisture to the optimum range of fermentation requirements, so that the animal manure can be completely decomposed in about 2 weeks. Then the pretreated raw materials can be put into the organic fertilizer granulator equipment such as the disc granulator for production. The inclined disc rotates continuously, and the powdered material gradually rolls into granules. Due to the high moisture content of the produced granular fertilizer, dryers, coolers and other organic fertilizer equipment are still needed to reduce the moisture content of the particles, so as to prevent agglomeration caused by stacking pressure after packaging and storage. In order to improve the productivity of the dryer, models with larger diameter and length are usually selected to increase the effective volume of the drum and extend the drying time of the material. Dryers of different specifications must be equipped with matching oil (coal) furnaces for heating and induced draft fans with corresponding air volume. In addition, if the fertilizer contains active microorganisms, the temperature of the hot air entering the drum dryer should not be too high. Determining the optimal hot air temperature and the storage time of materials in the drum dryer through experimental research has become the key to improving drying efficiency and reducing equipment investment.

2.Compound fertilizer equipment granulation process and equipment characteristicsConventional granular fertilizer production methods: Conventional granular fertilizer production methods are divided into extrusion method and agglomerate method. Extrusion granulation uses ring mode, flat mode and roller granulator. During the granulation process, the ring die and template are worn out, the service life is short, the equipment maintenance cost is high, and the power consumption is also large. The particles are cylindrical or flat, with poor fluidity and are not suitable for mechanized fertilization. Agglomerate granulation mostly uses disc granulator and drum granulator, which pulverize dry organic raw materials and fertilizer into fine powder, and then use disc granulator or drum granulator to roll the material into granules.

Advantages of roller extrusion granulator NPK fertilizer production line

The compound fertilizer production line is equipped with a twin-roll fertilizer granulator machine with short process flow, low energy consumption and large output. The dry powder is directly granulated without subsequent drying process, which is more conducive to the connection and transformation of the existing production process. The particle strength is high, and the increase in bulk density is more significant than other granulation methods. It is especially suitable for increasing the bulk density of products. The operation flexibility is large, the adaption range is wide, and the squeezing force can be adjusted by hydraulic pressure.

Roller granulator is commonly used in the NPK fertilizer production line, it is ideal granulator machine for fertilizer, let’s see the advantages of the roller granulator: 1. The compound fertilizer production line has the advantages of short process flow, low energy consumption and large output. 

2.  The material is forced to be compressed and molded by the pressure of the roller granulator, without adding any wetting agent, and the purity of the raw material is guaranteed. 3. Dry powder is directly granulated without subsequent drying process, which is more conducive to the connection and transformation of the existing production process. 4. The strength of the granules is large, and the increase in the bulk density is more significant than that of other granulation methods. It is especially suitable for occasions to increase the specific gravity of the product.

Precautions for operating fertilizer granulator machine

When the customer purchases the organic fertilizer granulator machine produced by our company, we provide technical support, but the operation should also be told to everyone. The operation of the organic fertilizer granulator includes familiarity with the buttons, adjustment of the parameters of the machine, and test run. Operation, protection, repair and other links. Because of the machine, the operation key has obviously become very important. Moreover, due to the use of mechanical equipment, it is inevitable that there will be wear and tear, and the wear will show faults. However, the correct operation method will greatly reduce the wear speed and extend the service life of the machine. Therefore, the operation steps of the machine are very important. Next, let us tell you the steps: 1. The operation of the granulator machine for fertilizer is the first preparation work. The plastic to be extruded should pay attention to the problem of drying. The material should reach the required dryness. If necessary, further drying should be carried out, and the particles and mechanical impurities should be forced to pass through the sieve. 2. When operating the machine, it depends on whether each system in the equipment is normal, to ensure that each machine is operating normally, whether the water vapor path is unblocked, other things such as heating system, temperature control, and whether each instrument is normal last night. Is the degree of lubrication of each equipment sufficient? If a problem is found, it must be removed in time. 3. Install the head and complete the installation of the equipment in order. 4. Then you can operate the device. 5. When the temperature reaches a stable level, you can start production. Before driving, you must tighten the bolts of the pelletizer again, because the machine parts have the principle of thermal expansion and contraction. The sequence is to tighten diagonally, and the force must be even. 6. When operating the production, slowly rotate the screw rotation speed button, wait until the screw starts slowly, and then gradually accelerate, adding a small amount of material. Pay close attention to the changes of various ammeters and various indicator meters before feeding. In the table, be sure not to cross the red mark. Before the fertilizer is squeezed out, no one can stand in front of the die to avoid injury. After the fertilizer pellets are squeezed out, they must be gradually cooled and then led to the traction equipment, and the equipment is activated at the same time. Then according to the standard of the extruded product, to see if it is suitable, make corresponding adjustments to make the entire extrusion operation reach the normal condition. It can be produced normally after maintaining uniform feeding. In addition to grasping the normal operation, it is also necessary to know the solution to the failure of the drum granulator and the correct disposal method. Normal operation is the top priority.

Brief introduction of three common organic fertilizer granulators

Zhengzhou Huaqiang Heavy Industry Organic Fertilizer Equipment Manufacturer briefly introduces three common models of flat film granulator, roller granulator, and organic fertilizer disc granulator. One, flat film granulator 1. The flat film granulator can produce pellet feed, organic fertilizer, and cylindrical pellets. It can also be connected with polishing equipment to roll the cylindrical pellets into balls at one time without returning pellets, high balling rate, good strength, and beautiful appearance. Applicable, it is the ideal fertilizer granulator machine for the production of organic fertilizer and feed pellets. 2. Adopt pressure wheels, and both ends are consistent with the line speed of the inner and outer rings of the mold plate, and there is no dislocation friction between the wheel and the mold, which reduces the resistance, reduces the kinetic energy loss, extends the service life of the mold, and reduces the production cost. 3. The pressing wheels are uniformly arranged, and the operation is stable. At the same time, the pressing area is increased and the production efficiency is improved. 4. The screw center pressure regulating structure is adopted, and the gap of the mold varies with the size of the die. It is suitable for different materials to ensure the pressing effect. 5. This model is equipped with a variety of Φ1.5-Φ20mm diameter molds, which are suitable for granulating different materials and achieve the best benefits. Two, Double roll extrusion granulator 1. The roller extrusion granulator is a new generation of granulation equipment developed by our company. It is produced by a non-drying room temperature process, one-time molding, and the output is 1-1.5 tons/hour and 1.5-3 tons/hour. 2. The equipment has less investment, quick results and good economic benefits. The complete set of equipment has a compact layout, scientific and reasonable, and advanced technology. Energy saving and consumption reduction, no three wastes are discharged, stable operation, reliable operation and convenient maintenance. 3. The raw materials have a wide adaptability and are suitable for the granulation of various raw materials such as compound fertilizers, medicines, chemicals, feeds, etc., and the product granulation rate is high. It can produce compound fertilizers of various concentrations and various types (including organic fertilizer, inorganic fertilizer, biological fertilizer, magnetic fertilizer, etc.). Especially for the granulation of rare earth, potash fertilizer and ammonium bicarbonate series compound fertilizers. Three, organic fertilizer disc granulator 1. The organic fertilizer disc granulator (also known as the spherical disc) is a volumetric metering feeding device, which can feed the material to the next process evenly and continuously, and may be subject to a larger warehouse pressure. 2. As feeding equipment for fine-grained materials, it is actually used to transport various non-sticky materials in powder, material or small pieces, such as coal powder, cement, clinker, limestone, shale, coal gangue, clay, etc. Granular or small block materials. 3. It can be widely used in gold dressing plants, coal mining plants and chemical industry, infrastructure and machined forging workshops, etc. for continuous uniform and quantitative feeding and batching. 4. This machine has simple layout, convenient adjustment and excellent performance. This machine is not suitable for transporting materials with high viscosity and not easy to move and materials with good flow characteristics. 5. The disc granulator machine for fertilizer has the following benefits: high ball formation rate, strong roundness of the particles, intuitive control, convenient maintenance, etc. The above three kinds of granulators are assisted by the processing of livestock and poultry manure into organic fertilizer particles. The chicken manure, pig manure and cow manure of the breeding plant can be cleaned and transported at any time. The fresh manure is passed through the solid-liquid separator-trough and wheel turner , Semi-wet material pulverizer, organic fertilizer mixer, dryer, drum screening machine, and a series of equipment disposal, processing livestock and poultry manure into organic fertilizer to increase farmers' income and solve the employment of wealthy labor.

Advantages and precautions for use of the roller extrusion granulator

The roller granulator is common granulating equipment, which is generally used for the production of organic fertilizer. This kind of machine has low investment and is easy to operate. It is a good helper for the production of organic fertilizer. So, what are the advantages of the roll extrusion granulator? What problems should be paid attention to when using? The following editor will explain in detail in the future. The following is an introduction to the "advantages and precautions for use of the roller extrusion granulator".

Speaking of the roller extrusion granulator, everyone has heard of it. The roller extrusion granulator has no drying process to achieve room temperature granulation. One-time molding has the advantages of low investment, quick effect, long life and high granulation rate. With the rapid development of information, customer word-of-mouth has become an important basis for measuring corporate reputation. Machinery has always insisted on considering issues from the perspective of customers. Granulator equipment and careful pre-sales and after-sales service have won a good reputation in the industry.

Before purchasing the double-roller extrusion granulator production line, users will go to the production site to take a look. Only the real user site can make users buy at ease.

In terms of the quality of the roller extrusion granulator equipment, the machinery attaches great importance to the foundation of the equipment, coupled with the strong technical team, continuous innovation, and the transformation and upgrading of the equipment in accordance with the market demand. The roller extrusion granulator industry is excellent. The company's counter-roll extrusion granulator equipment, whether it is a counter-roll extrusion granulator, a new type of organic fertilizer granulator machine, a disc granulator, a drum granulator, and other equipment, is shining in every industry.

What problems should be paid attention to when using the roller extrusion granulator?

1. The granulator should run forward; avoid reverse rotation.

2. The granulator is forbidden to run without load, and must be run with feed.

3. It is strictly forbidden to enter iron and other sundries in the feed port and vent hole of the granulator machine for fertilizer, so as not to cause unnecessary accidents and affect the safety and normal production.

4. Feeding should be uniform, and there should be no shortage of materials. The feeding speed of the machine and the feeding speed should be matched appropriately. Otherwise it will affect the quality and output of the pellets.

5. When the bearing part of the reducer burns, or is accompanied by noise, it should be shut down and repaired in time, and refuelling should be added.

6. When the bearing parts at both ends of the bearing chamber of the main engine are hot or there is noise, stop the machine for maintenance and add butter. During normal operation, the bearing chamber is filled with butter every 5-6 days.

7. Pay attention to find out the operating rules of the machine; such as: the machine temperature is high or low, the speed is fast or slow, and it can be dealt with in time according to the situation.

8. When the operation of the machine is unstable, pay attention to check whether the gap of the coupling anastomosis is too tight, and adjust it in time.

How to control the moisture in the operation of the drum granulator?

Drum granulator is a granulator machine for fertilizer that can manufacture materials into specific shapes. The drum granulator is one of the key equipment in the compound fertilizer industry. It is suitable for cold and hot granulation and large-scale production of high, medium and low concentration compound fertilizers. The main working method is wet granulation of agglomerates. A certain amount of water or steam is used to make the basic fertilizer fully react after being humidified in the cylinder. Under a certain liquid phase condition, with the help of the rotation of the cylinder, the material particles are extruded. The pressure reunites into a ball. The drum granulator of organic fertilizer equipment is filled with steam, gas ammonia or phosphoric acid or nitrogen solution, phosphorous ammonia slurry, heavy calcium slurry, and the compound fertilizer granulation process of chemical reaction and heating is completed in the barrel; or supplement Cold granulation process of compound fertilizer with small amount of water. The material to be granulated is passed through the rotating movement of the cylinder and cohesively formed into balls under a certain humidity and temperature to complete the ball making process. In the granulation process of drum type fertilizer granulator machine, the powder material is mainly cladding type, so the material circulation volume needs to be larger, so that the material can be clumped into large particles during the cladding process. When the water content of the material is large, the amount of water injection it should be smaller, so that the fertilizer that makes the pellets will absorb less water. When granulating with this bonding method, if the water content of the material is small, it is necessary to add more water injection, because the materials are bonded to each other, the gap between the powder particles needs to be filled with water. Because the understanding of the granulation process has been deepened, some suitable monitoring instruments have been developed, so it is possible to simulate and computer automation control the granulation process.

Performance comparison of disc granulator and drum granulator

Zhengzhou Huaqiang Heavy Industry Compound Fertilizer Equipment has a complete range of fertilizer granulator machine, including disc granulator, drum granulator, roller granulator, rotary coating machines, etc., which are well received by users High praise, let’s focus on the performance comparison of compound fertilizer equipment disc granulator and drum granulator: The compound fertilizer equipment disc granulator adopts an overall arc structure, and the granulation rate is over 85%; the disc granulator body is equipped with three discharge ports, which is convenient for intermittent production operations, greatly reduces labor intensity and improves labor efficiency; The machine and the motor are driven by a flexible belt, which can start smoothly, reduce the impact of the buffer, and increase the service life of the equipment; the bottom of the disc granulation disc is reinforced by multiple radiant steel plates, which is durable and never deformed. The compound fertilizer equipment disc granulator has a thicker, heavier and firm base design, does not require anchor bolts, and runs smoothly; the main machine gear adopts high-frequency quenching, and the service life is doubled. The compound fertilizer equipment disc granulator is widely used for various non-sticky materials in powder, material or small lumps. It can be used to granulate various raw materials such as compound fertilizer, medicine, chemical industry, feed, coal, metallurgy, etc. It has the advantages of uniform granulation, high granulation rate, stable operation, sturdy equipment and long service life, etc. The drum granulator is one of the key granulation equipment of compound fertilizer equipment, which is suitable for the large-scale production of cold and hot granulation and high, medium and low concentration compound fertilizer. The main working method is wet granulation of agglomerates. Through a certain amount of water or steam, the basic fertilizer is fully chemically reacted in the cylinder after the humidity is adjusted. Under a certain liquid phase condition, the rotation of the cylinder can make the material particles Produce squeezing force to reunite into balls.