The granulation process and advantages of compound fertilizer drum granulator

fertilizer granulator Oct 31, 2023

The compound fertilizer rotary drum granulator is equipped with steam, gas ammonia, or the addition of phosphoric acid or nitrogen solution, phosphorus ammonia slurry, and heavy calcium slurry to complete the chemical reaction and heating process of compound fertilizer granulation in the cylinder; Alternatively, in the cold granulation process of adding a small amount of water to the compound fertilizer, the materials that need to be granulated are rotated through the cylinder, causing rolling rotation when there is no material in the cylinder, and then agglomerated into balls at a certain humidity and temperature to complete the granulation process.

The composite fertilizer drum granulator adopts a special rubber plate lining or acid resistant stainless steel lining plate to achieve automatic scar removal and tumor removal, replacing the traditional scraper device. This machine has the characteristics of high ball forming strength, good appearance quality, corrosion resistance, wear resistance, low energy consumption, long service life, and convenient operation and maintenance. Steam and gas ammonia are introduced into the drum granulator, or phosphoric acid, nitrogen solution, phosphorus ammonia slurry or heavy calcium slurry are added to complete the chemical reaction and heating process of compound fertilizer granulation in the cylinder; Alternatively, a cold granulation process for adding a small amount of water to the compound fertilizer. The material that needs to be granulated is rotated through the cylinder, causing rolling rotation when there is no material in the cylinder, and then agglomerates into a ball under a certain humidity to complete the ball making process.

The main advantage of the compound fertilizer drum granulator is that it uses steam heating to regulate humidity, increases the temperature of the granulation material itself, reduces granulation water content, reduces the load of the dryer, and improves work efficiency. The granulation rate can reach 70% using a drum granulator, and the equipment is easy to operate, with high work flexibility and convenient maintenance. The equipment is lined with ultra-high molecular weight polyethylene (UHMW-PE), which eliminates the phenomenon of material sticking to the wall, reduces the labor intensity of workers, and greatly extends the service life of the equipment.

Wide application of drum granulator in organic fertilizer production line

fertilizer granulator Oct 31, 2023

The production of high-efficiency organic fertilizers by organic fertilizer equipment production lines is also an environmental protection project supported by the state. In order to comply with the national policy, take the development of green circular agriculture as its own responsibility, and improve the economic benefits of customers, the invention of the organic fertilizer granulator machine is a better choice for organic fertilizer production equipment. secondary pollution.

Commonly used organic fertilizer granulator equipment are: disc granulator machine, drum granulator, wet granulator, drum extrusion granulator, flat die granulator, and tooth stirring granulator. The choice of granulator should be determined according to the local organic fertilizer sales market. If the shape requirements of the granules are different, the processing process of the organic fertilizer production line is also different, and the price of the organic fertilizer production line is also different. Choose the appropriate organic fertilizer granulator according to the specific process requirements. There are many types of granulators. The specific use is very different. Let’s learn about the drum granulator.

The organic fertilizer rotary drum granulator has no sticking phenomenon, which is conducive to the classification of dry and wet particles, and the relative granulation ratio is low, generally 40% -60%. Therefore, the reaction rate is high, but the requirements for the mixing and degree of material mixing in the mixing process are relatively low.

The new organic fertilizer granulator has a wide range of applications, especially for the granulation of light and fine powders. The finer the basic particles of the fine powder material, the higher the degree of sphericity of the particles, and the better the quality of the particles. In general, the particle size of the material before granulation must be less than 200 mesh. Typical application materials are chicken manure, pig manure, cow manure, charcoal, clay, kaolin, etc. Due to the particularity of raw materials such as livestock and poultry manure, organic fertilizer, degummed fertilizer, green manure, sea manure, cake fertilizer, peat, soil fertilizer, three wastes, microorganisms and other municipal solid waste granulation, the particles are irregular.

The advantages of roller extrusion granulator in fertilizer granulation production line

fertilizer granulator Oct 31, 2023

The double roller press granulator is an improved product that absorbs the new technology of the international organic fertilizer granulator machine. The machine is equipped with a feeding system that is connected with a pre-continuous feeder with a machine touch device and a forced feeding screw feeding hopper, which ensures the continuity, adequacy and uniformity of the feeding, which is an important step. The paired rolls are engraved with evenly distributed arc grooves, which is beneficial for the material to bite into the rolls, causing the arc groove to seal the cavity (belt) during operation, which is also beneficial for the compaction of the material, reducing the forming pressure of the mechanism and the load of the main engine, and improving the manufacturing process. 

The key structure of the roller granulator is the roller and the mold. The belt and the pulley are driven by the motor, which is transmitted to the driving shaft through the reducer, and works synchronously with the driven shaft through the split gear. The material is fed from the feeding hopper, extruded by rollers, demolded into balls, driven by a pair of chains, and sent to the crushing screen.

The roller extrusion granulator is the key equipment for fertilizer granulation. It has advanced technology, reasonable design, compact structure, novel and practical, low energy consumption, and is matched with corresponding equipment to form a small production line, which can form a certain continuous production and mechanization. The ability of production, non-drying, room temperature production, product rolling molding, product quality meets the technical requirements of fertilizer, npk fertilizer granulator is a new product for energy saving and consumption reduction in high, medium and low concentration special organic fertilizer and compound fertilizer industry.

The complete set of equipment has a compact layout, scientific and reasonable layout, advanced technology, energy saving and consumption reduction, no three wastes discharge, stable operation, reliable operation, convenient maintenance, and wide adaptability of raw materials. High granulation rate.

The working principle and function of organic fertilizer rotary drum drying equipment

fertilizer granulator Oct 31, 2023

Approximately 3.8 billion tons of livestock manure are produced annually in China, which has become the main source of environmental pollution. Proper utilization of feces can lead to better “waste utilization”, and livestock manure treatment equipment is a complete set of equipment for treating feces. Fecal treatment equipment can better dry feces, and can dry fresh feces with a high moisture content of 70-80% through high-temperature drying, disinfection, sterilization, decomposition and other processes to produce pure fecal organic fertilizer with a moisture content of less than 13%. The shape is a granular finished product and does not contain any chemical components, making it an ideal organic fertilizer for farmland.

The rotary drum drying equipment for manure production has made significant breakthroughs and innovations on the basis of the traditional single drum rotary dryer structure. From the perspective of drying mechanism, the exchange between materials and hot air flow is more comprehensive, scientific and reasonable, and all thermal indicators reach a high level. Suitable for drying various raw materials such as clay, gypsum, coal, slag, coal gangue, mixtures, dry mixed mortar, yellow sand, iron powder, etc. It is also suitable for drying raw materials in the production of phosphate and composite fertilizers, as well as various loose materials in industries such as metallurgy and chemical engineering.

The working principle of the rotary drum drying equipment for manure production organic fertilizer:

When the bottom temperature of the organic fertilizer rotary drying equipment in the production of bacterial residue reaches 400 ℃ -800 ℃, the material is fed into the feeding port by the elevator, and under the action of gravity, it is dispersed, crushed, and the dispersion device is uniformly distributed inside the dryer to flow (ensuring the heat exchange effect of the material inside the dryer). Hot gas is generated by the lower hot air furnace and moves from bottom to top, coming into contact with the material. Through various means such as heat conduction, convection, and radiation, heat is transferred to the material, causing the temperature of the material to continuously rise and the moisture to evaporate. Materials that meet the moisture requirements are discharged from the lower outlet, and gas with water vapor is extracted by the fan from the chimney.

The advantages of roller extrusion granulator in fertilizer granulation equipment

fertilizer granulator Oct 31, 2023

The double roller press granulator is an improved product that absorbs the new technology of the international organic fertilizer granulator machine. The machine is equipped with a feeding system that is connected with a pre-continuous feeder with a machine touch device and a forced feeding screw feeding hopper, which ensures the continuity, adequacy and uniformity of the feeding, which is an important step. The paired rolls are engraved with evenly distributed arc grooves, which is beneficial for the material to bite into the rolls, causing the arc groove to seal the cavity (belt) during operation, which is also beneficial for the compaction of the material, reducing the forming pressure of the mechanism and the load of the main engine, and improving the manufacturing process. 

The key structure of the roller granulator is the roller and the mold. The belt and the pulley are driven by the motor, which is transmitted to the driving shaft through the reducer, and works synchronously with the driven shaft through the split gear. The material is fed from the feeding hopper, extruded by rollers, demolded into balls, driven by a pair of chains, and sent to the crushing screen.

The roller extrusion granulator is the key equipment for fertilizer granulation. It has advanced technology, reasonable design, compact structure, novel and practical, low energy consumption, and is matched with corresponding equipment to form a small production line, which can form a certain continuous production and mechanization. The ability of production, non-drying, room temperature production, product rolling molding, product quality meets the technical requirements of fertilizer, npk fertilizer granulator is a new product for energy saving and consumption reduction in high, medium and low concentration special organic fertilizer and compound fertilizer industry.

The complete set of equipment has a compact layout, scientific and reasonable layout, advanced technology, energy saving and consumption reduction, no three wastes discharge, stable operation, reliable operation, convenient maintenance, and wide adaptability of raw materials. High granulation rate.

Equipment Composition and Advantages of Small Compound Fertilizer Production Line

fertilizer granulator Oct 26, 2023

The production of small-scale automatic compound fertilizer equipment mostly uses drum granulators, disc granulators, roller extrusion granulators, etc., which have high investment, high cost, and low output.

The small-scale compound fertilizer production line equipment includes: chain crusher → disc mixer → roller extrusion granulator → drum screening machine → automatic packaging machine. The small-scale compound fertilizer production line requires two steps to process commercial organic fertilizer: the preliminary fermentation and treatment part and the deep processing granulator part.

The small-scale compound fertilizer production line equipment mainly includes two parts: fermentation and production. Due to the presence of harmful substances in fresh pig manure and its inability to become a commodity in its form. The purpose of fermenting pig manure is to treat it harmless and make it a fertilizer with high organic matter content. The fermented pig manure is loose and odorless, and can be processed into powder or granular organic fertilizer as needed, and then packaged and sold using an automatic packaging machine. This is the organic fertilizer production part.

The small-scale automatic production line for compound fertilizer has low investment, fast efficiency, and good economic benefits. The complete equipment process layout is compact, scientific and reasonable, and technologically advanced. Energy saving and consumption reduction, no discharge of three wastes, stable operation, reliable operation and convenient maintenance. Wide adaptability of raw materials, suitable for granulation of various raw materials such as compound fertilizers, pharmaceuticals, chemicals, feed, etc., with high product granulation rate. It can produce various concentrations and types of compound fertilizers (including organic fertilizers, inorganic fertilizers, biological fertilizers, magnetized fertilizers, etc.).

The machine process flow of the small-scale compound fertilizer production line can be divided into: raw material batching, raw material mixing, raw material granulation, particle drying, particle grading, particle cooling, finished product coating, and finished product packaging.

How to distinguish between wet and dry organic fertilizer granulation equipment

fertilizer granulator Oct 26, 2023

There are many types of granulators for organic fertilizers, which are distinguished according to different raw materials, different output and different particle shapes. They are roughly divided into disc granulator machine, flat die granulators, tooth stirring granulators, and roller extrusion Granulator, round granulator. The fertilizer granulator machine price is also different, ranging from several thousand yuan to tens of thousands of yuan. Because the output is different, the size of the granulator required is different, there are very small granulators, and there are also large granulators.

Among them, organic fertilizer granulator machine is a large general term, which is mainly divided into two categories: wet method and dry method:

1. Wet granulator, which adds the main materials and auxiliary materials to be granulated into the mixer according to the appropriate ratio and formula, and the powder material and the binder are fully mixed at high speed by the bottom mixing paddle in the cylindrical container. After that, it is made into wet soft material, and then cut into uniform wet particles by the side high-speed pulverizing paddle, so as to achieve the purpose of granulation. It can also be equipped with vacuum drying and auxiliary system equipment to achieve one-step, and directly obtain finished products.

2. Dry granulator, its working principle is that after the material enters the horizontal feeder, driven by the rotating screw, the material is gradually degassed in the process of advancing, and the material with increased density is forced into the tablet press. . The tablet press rolls the high-density material conveyed by the horizontal feeder into a 2-4mm sheet through a pair of hydraulic cylinders (adjustable pressure) to push the pressure roller, and completes the degassing work again. The rolled sheet passes through the teeth of the shearing crusher, and is cut into pieces that are easy to granulate and then falls into the granulator. The fragments are forced out of the sieve plate under the extrusion of the sizing knife. After the extruded granules are screened, the products with the particle size required by customers can be obtained. So far, the whole process of granulation has been completed.

How to distinguish between wet and dry organic fertilizer granulation equipment

fertilizer granulator Oct 26, 2023

There are many types of granulators for organic fertilizers, which are distinguished according to different raw materials, different output and different particle shapes. They are roughly divided into disc granulator machine, flat die granulators, tooth stirring granulators, and roller extrusion Granulator, round granulator. The fertilizer granulator machine price is also different, ranging from several thousand yuan to tens of thousands of yuan. Because the output is different, the size of the granulator required is different, there are very small granulators, and there are also large granulators.

Among them, organic fertilizer granulator machine is a large general term, which is mainly divided into two categories: wet method and dry method:

1. Wet granulator, which adds the main materials and auxiliary materials to be granulated into the mixer according to the appropriate ratio and formula, and the powder material and the binder are fully mixed at high speed by the bottom mixing paddle in the cylindrical container. After that, it is made into wet soft material, and then cut into uniform wet particles by the side high-speed pulverizing paddle, so as to achieve the purpose of granulation. It can also be equipped with vacuum drying and auxiliary system equipment to achieve one-step, and directly obtain finished products.

2. Dry granulator, its working principle is that after the material enters the horizontal feeder, driven by the rotating screw, the material is gradually degassed in the process of advancing, and the material with increased density is forced into the tablet press. . The tablet press rolls the high-density material conveyed by the horizontal feeder into a 2-4mm sheet through a pair of hydraulic cylinders (adjustable pressure) to push the pressure roller, and completes the degassing work again. The rolled sheet passes through the teeth of the shearing crusher, and is cut into pieces that are easy to granulate and then falls into the granulator. The fragments are forced out of the sieve plate under the extrusion of the sizing knife. After the extruded granules are screened, the products with the particle size required by customers can be obtained. So far, the whole process of granulation has been completed.

Product characteristics of organic fertilizer self-propelled crawler type tipping machine

fertilizer granulator Oct 26, 2023

The organic fertilizer self-propelled track type tipping machine adopts a track walking design, which can move forward, reverse, and turn. It is controlled and driven by one person. During driving, the entire vehicle rides on a pre stacked long strip fertilizer base, and the fertilizer base raw materials are flipped, fluffy, and moved by a rotating knife shaft hanging under the frame. After passing by, new strip piles are left behind. This machine can be operated in an open outdoor field or in a workshop greenhouse.

The product characteristics of organic fertilizer self-propelled crawler type tipping machine:

1. The self-propelled tipping machine is more suitable for the mechanism and process requirements of microbial fermentation and storage of feces into fertilizer, and can effectively mix thick stored feces with microbial preparations and straw powder. Not only is the fermentation speed much faster than deep tank fermentation, but it also effectively prevents the generation of harmful and odorous gases such as hydrogen sulfide, ammonia, and indole during the fermentation process, which meets environmental requirements and can produce high-quality organic fertilizers.

2. The self-propelled tipping machine has a balanced and suitable overall power, low energy consumption, and high yield, reducing the production cost of bio organic fertilizers.

3. The overall structure of the self-propelled stacker machine is reasonable, with good rigidity, balanced force, simplicity, robustness, safe and reliable performance, easy operation, and strong usability in the storage yard. Except for the coarse frame, all components are standard parts, making it easy to use and maintain.

4. The self-propelled tipping machine does not need to build a slot, and can stack fertilizers into long strips on the ground. Ground stacked fermentation is currently a more advanced and cost-effective fertilizer production mode that utilizes a stacker to mix and crush materials at regular intervals, and decompose organic matter under aerobic conditions.

Operating instructions for the disc granulator of organic fertilizer equipment

fertilizer granulator Oct 26, 2023

Organic fertilizer granulation equipment: The granulation of mixed fertilizer is an important process in the granulation process. It is not only related to the internal and external quality of the product, but also related to the size of the output and the cost. In addition to the physical and chemical properties of the material itself, it is also closely related to the form and mechanical properties of the granulation equipment. The main types of npk fertilizer granulator are disc granulator, drum granulator, twin shaft granulator, extrusion granulator and spray granulation dryer, etc.

Precautions for operating the disc granulator:

1. Water content: the control of water content in the operation of the organic fertilizer equipment disc granulator. When the disc granulator is running, the inclined disc granulation process is adopted. The pelletizing process requires high moisture content, and poor moisture control can lead to a decrease in pelletizing speed.

2. Materials: Pay attention to the quality of various materials to ensure that sundries, large pieces and large particles are not mixed into the feed. In addition, they should pay attention to the temperature of the equipment feed, because if the temperature of the die is too high, the material can easily break and stick to the die after startup.

3. Disc inclination: Pay attention to the change of the inclination of the disc granulator during operation. The disc granulator machine has a certain inclination angle. If the inclination angle changes due to unexpected reasons, it will also affect the granulation rate of organic fertilizer granules and also affect the service life.

4. Body temperature: The operator should also pay attention to the temperature change of the body at any time. During the normal operation of the granulator, the operator should maintain a stable machine temperature and do not allow the temperature to rise and fall.

5. Speed: When using the disc granulator, in order to ensure that the produced particles are uniform, smooth and complete, attention should be paid to ensure that the feeding is uniform and sufficient, and the feeding speed and feeding speed of the equipment should be properly matched to avoid particle quality and Production fell.