Advantages of disc granulator in processing agricultural straw to produce fertilizer

At present, the utilization of agricultural straw is very low whether it is returned to the field as fertilizer or as feed, causing serious waste. The development of bioengineering technology makes use of biotechnology to produce bio-organic fertilizer through the biological fermentation of straw, human and livestock manure, which can not only improve crop yield, but also reduce pollution, ecological and environmental protection, and produce green products.

Disc granulator (also known as spherical disk), the granulation disk is of integral arc structure, with high granulation rate. The granulation disk is equipped with three discharge ports, which are convenient for intermittent production operations, reduce labor intensity and improve labor efficiency. The reducer and motor are driven by flexible belt, which can start smoothly, reduce the impact force and improve the service life of the equipment. The bottom of the granulation disk is strengthened by multiple radial steel plates, which are firm and durable without deformation. The thickened, weighted and solid base design, It is an ideal equipment for granulating organic fertilizer and compound fertilizer without fixing with anchor bolts and running smoothly.

The raw meal powder is uniformly wetted by atomized water in the two-shaft mixer to form a ball core with uniform particle size, and then sent to the balling plate for balling. The moisture content of the pellets shall be controlled at 12~14%. Most of the water should be added in the twin-shaft mixer, and only a small amount of make-up water should be added in the disc granulator. The make-up water should be controlled at about 0~3%. The dry powder granulation is directly added to the pelletizing plate and sprayed with appropriate water. After entering the pelletizing plate, the raw material ball core moves along the parabola under the action of centrifugal force, friction and gravity.

Due to the cohesiveness and plasticity of the material, the ball and core bond with each other and grow up gradually in the process of movement. When the parameters of the disc granulator such as inclination angle, disc edge height, rotating speed and moisture are specific, the pellets with different particle sizes roll downward from the disc edge at different separation angles due to different gravity. In the continuous rolling process, the water in the ball is continuously drained out of the surface. Due to the cohesiveness of the material and the natural volatilization of the liquid film on the surface, the ball has strength and is discharged from the edge of the disk with the rotation of the tilting disk.

The fermentation fertilizer manufacturing process of organic compost can be simply divided into the following four stages:

(1) Fever stage In the early stage of composting, the microorganisms in the compost are mainly of moderate temperature and aerobic types. The more common ones are non-spore-forming bacteria, spore-forming bacteria and mold. They start the fermentation process of composting. Under aerobic conditions, they vigorously decompose and easily decompose organic substances (such as simple sugars, starches, proteins, etc.) to generate a lot of heat. For the fever stage, or the middle temperature stage.

(2) High temperature stage As the temperature increases, the heat-bearing microorganisms gradually replace the mesophilic species and play a leading role. The temperature continues to rise, generally reaching more than 50 ° C within a few days, and enters the high temperature stage. In the high temperature stage, thermophilic actinomycetes and thermophilic fungi become the main species. They strongly decompose complex organic substances (such as cellulose, hemicellulose, pectin substances, etc.) in the compost, heat accumulation, the temperature of the compost rises to 60-70 ° C, and even up to 80 ° C. Then most of the good heat Microorganisms also die in large numbers or enter a dormant state (more than 20 days), which has an important role in accelerating the compost maturation. Improperly composted compost only has a short high temperature period, or does not reach high temperature at all, so it matures slowly, and it cannot reach a semi-mature state in half a year or more.

(3) Cooling stage When the high temperature stage lasts for a certain period of time, most of the cellulose, hemicellulose and pectin substances have been decomposed, leaving complex components that are difficult to decompose (such as lignin) and newly formed humus Activity weakens and the temperature gradually decreases. When the temperature drops below 40 ° C, the mesophilic microorganisms become the dominant species again. If the temperature comes down early, it indicates that the stacking conditions are not ideal and the plant matter is not decomposed sufficiently. At this time, the pile can be turned over, and the accumulated materials can be mixed well to generate a second heat and temperature increase to promote the composting of the compost.

(4) Stage of maturing and composting After composting, the volume of the compost is reduced, and the temperature of the compost is reduced to slightly higher than the temperature. At this time, the compost should be compacted, causing an anaerobic state, and weakening the mineralization of organic matter, so as to facilitate fertilizer preservation.

In short, the fermentation process of organic compost is actually the process of metabolism and reproduction of various microorganisms. The metabolic process of microorganisms is the process of decomposition of organic matter. The decomposition of organic matter will inevitably produce energy, which drives the composting process, raises the temperature, and at the same time dries the wet substrate. Many composting substrates carry human and animal and plant pathogens, as well as annoying organisms such as weed seeds.

During the composting process, by continuously heating for a short time, the growth of these organisms can be effectively controlled. Therefore, a major advantage of high-temperature composting is its ability to inactivate human and animal and plant pathogens and seeds. Pathogens and seeds are inactivated due to cell death, and cell death is largely based on the thermal inactivation of enzymes. At an appropriate temperature, the enzyme inactivation is reversible, but at high temperatures it is irreversible. Within a very small temperature range, the active part of the enzyme will rapidly decrease. If there is no enzyme, the cell will lose its function and die. Only a few enzymes can withstand the long-term high temperature. Therefore, microorganisms are very sensitive to heat inactivation.

Studies have shown that heating at a certain temperature for a period of time can destroy pathogens or annoying organisms. It is usually heated at 60-70 ° C (damp heat) for 5-10 minutes. Can destroy the activity of non-spore bacteria and non-dormant bodies of spore bacteria. Using heat sterilization, heating at 70 ° C for 30min can eliminate pathogens in sludge. However, at lower temperatures (50-60 ° C), some pathogens can survive up to 60 days. Therefore, it is necessary to maintain a temperature above 60 ° C for a period of time during the composting process. During the composting process, the pile should be turned over if necessary. Generally, it takes place when the reactor temperature crosses the peak and begins to cool down. Turning the reactor can remix the materials with different decomposition temperatures in the inner and outer layers. If the humidity is not enough, some water can be added to promote the compost to rot evenly.

The lees has a large acidity and a moisture content of more than 65%. It is highly biochemical, easily corrupted, and inconvenient to store. If not handled in time, it will easily cause great pollution to the environment. On the other hand, lees, as a by-product of the production of liquor, is rich in nutrients such as crude protein, crude fat, crude starch, crude fiber and nitrogen-free leachate, and is also rich in inorganic elements such as phosphorus and potassium as well as pentose and total sugar. Ingredients are an excellent source of organic fertilizer manufacturing process. The use of rich lees raw materials to make organic fertilizers can not only solve environmental problems, turn waste into treasure, but also provide an organic environment for green agricultural production. It has high economic, environmental and social benefits.

The amount of lees is evenly sprinkled with 2 to 2.5% of lees quality quick lime, 3 to 5% of straw and 1 to 2% of sawn wood surface, and the fermentation material is prepared by mixing evenly. Spread the strains evenly on the prepared fermented material at a ratio of 0.2% to 0.3% of vinasse quality and ferment for 3 to 5 days. The temperature of the stack rises to 60 to 65 ° C and the stack is covered with mycelia.After 2 ~ 3 days, the temperature of the stack will rise to 60 ~ 65 ° C again, covered with mycelium, then turn over again; after 8 ~ 10 days of fermentation, enter the high temperature period of fermentation to maintain the temperature of the stack Do not exceed 65 ° C to adjust the frequency of turning over; the fermentation cycle is 20-25 days. The temperature of the stack fell below 50 ° C, the moisture of the compost was about 35%, the appearance was brown, gray-brown or black, the physical structure was loose, and there was no foul odor. Crushing and sieving: After passing through the maturation period, the fermented materials are crushed with a semi-humid material crusher, and then screened through a 3 ~ 4mm roller screen to obtain the final product of lees organic fertilizer.

Distillery distillery + fermentation agent + auxiliary raw materials (crop straw, etc.) → pre-mixing → fermentation tank → turning machine → fermentation (7-8 days rot, dehydration, sterilization, deodorization) → out of the pool → powdered organic fertilizer (Or as a raw material for granulation and deep processing to produce round granulated organic fertilizer) → Ingredients measurement → multidimensional mixing → extrusion granulation → polishing and shaping (3.5-4mm round spherical granules) → low temperature drying → normal temperature cooling → graded screening → finished organic fertilizer → Measuring and packaging

The role of organic fertilizer pulverizer in the treatment of poultry and livestock manure

After several years of structural adjustment, the animal husbandry industry has become the main industry, and the production base based on pigs, poultry and meat cattle and sheep is being formed. At the same time, the ecological and environmental problems are also becoming more and more serious. Using livestock manure to produce bio-organic fertilizer can not only alleviate the shortage of fertilizer resources, improve soil fertility, improve crop quality and yield, but also achieve cleaner production and recycling of agricultural resources, and promote the healthy development of ecological agriculture construction. It has significant ecological and environmental benefits, social benefits and economic benefits.

The working principle of the organic fertilizer pulverizer: the material enters from the feed inlet and collides with the high-speed rotating shell in the organic fertilizer pulverizer shell. After the impact, the material is squeezed and broken, and then hit the inner wall of the shell and collides with the hammer head. In this way, during the process of falling, it will change into powder or particles less than 3mm after several impacts, and discharged from the lower screen plate. The particles with large particle size cannot be discharged from the screen plate, and continue to be broken by the hammer, Until the sieve plate is discharged.

The organic fertilizer pulverizer is suitable for fermenting decomposed animal manure, straw, straw, urban domestic garbage, Chinese herbal residue, distiller’s grains, corn cob, sludge, sugar cane residue, biogas residue and other dry and wet raw materials with good effect. It can grind hard materials such as glass, ceramics, bricks and crushed stones in municipal solid waste and sludge organic fertilizer. This machine solves the problem of crushing high water content organic matter.

Straw organic fertilizer made by organic fertilizer crusher can show the long-term effect of inorganic fertilizer, organic fertilizer and biological fertilizer activity. So straw organic fertilizer is an ideal soil conditioner, nutrient supplement and ecological balance agent.

The fertilizer production line is to be designed and used to produce the npk compound fertilizer and organic fertilizer.So how many process is to be designed by the fertilizer machine manufacturers?The npk fertilizer production line is to be designed for producing the npk fertilizer,so there we share the npk fertilizer manufacturing process in this article.
1.Compounding process:The operator shall add various raw materials such as N,P,K and additives to the elettronic belt weigher in strict accordance with the requirement of the technician of each kind of raw material addition amount.The addition process of raw materials requires that the raw materials shall be powder or granular without caking,and the materials flow shall be uniform,and the operation shall not be interrupted from time to time.
2.Comminution process of compound fertizer:Accprding to the design requirements,the mixed fertilizer is transported to the raw material crusher for raw material crushing,the purpose is to crush all kinds of raw materials to a certain fineness,basically making the particle size of raw materials less than 1mm,which is conducive to the rolling of materials into standard balls in the granulator.

3.Granulation process of compound fertilizer:In the npk fertilizer production line,it is to be equipped with different type and series fertilizer machine to finish different production process.The crushed raw materials enter the conveyor of the belt conveyor and are transported to the fertilizer granulator machine of the rotary drum granulator for granulation.The solid fertilizer powder that needs to be granulated rises with the help of the rotation of the cylinder,and rolls down under the action of gravity.At the same time,granulate according to the amount of raw materials and the proportion of binder.The materials are wrapped on the surface of nucleation layer by layer,and thicken layer by layer.
Gradually granulating,under the action of the above forces,the material gradually forms the base core until it reaches the granulation requirements and enters the drying section.
4.Drying process of compound fertilizer:The dryer adopts the method of cylinder edge transmission,flange connection and direct heat transfer,which is suitable for the drying of compound fertilizer after granulation.The materials to be dried enter the drying area of the board with special combination.Due to the tilting movement of the body and the board,the materials are continuously taken up by the board to be fully scattered and moved longitudinally.
At the same time,it can fully exchange heat with the high temperature furnace gas from the hot blast furnace,evaporate water and dry the materials.Materials and flue gas need to be dried and operated in a downstream and micro negative pressure way.
5.Cooling process of compound fertilizer:The rotary cooler is mainly used for the cooling of compound fertilizer products after drying.It can directly cool the hot granular material fertilizer to near normal temperature.The material entering the cooler moves forward continuously under the rotating and tilting action of the body.At the same time,the induced draft fan from the tail of the cooler to the head meets the material countercurrent,taking away the heat of the material.
In the process of cooling,the cold wind also takes part of the water.
The cooled materials are easy to be packed in time and quickly to prevent caking during storgae.The machine adopts micro negative pressure operation,which reduces pollution and improves working environment.It has the characteristics of reasonable structure,stable operation and strong adaptability.The cooled materials are transported to the sixth sectionn by belt conveyor.
6.Screening and large particle crushing process of compound fertilizer:Screening section is mainly to separate fine powder,finished product and large particle materials.First,the fine powder in the semi-finished produce is separated,and then the large particles are separated.
The separated large particles are crushed by the large particle curhser,and then enter the return belt together with the separated fine powder,and return the granulator for granulation.Finished products enter the seventh section.
7.Packaging process of compound fertilizer:The finished products is lifted to the bin on the packaging machine by the leather elevator,unloaded to the weighing scale body and carried out the automatic weighing peration according to the set weigning weight.The weighed material enters the sewing bag section through the conveyor,and then the sewing bag operation is carried out and put into the finished product warehouse.
Besides the npk fertilizer production line is to be designed for producing the npk,compound fertilizer,the organic fertilizer production line is also to be designed for producing the organic fertilizer.In the fertilizer manufacturing process,when producing the organic fertilizer by using the complete fertilizer production line and fertilizer machine to finish the production process,it improves the working efficient,at the same time,it also saves more labor cost.

How to ferment domestic waste with chain plate composter

Garbage is a very common thing in people’s lives, such as leftovers from farmers’ markets, dead branches and leaves in urban parks, various animal excrement, various straws, etc. These things are low in price and have even brought many negative effects on our living environment. But you know what? Garbage can also be made into organic fertilizer. We can make full use of these “garbage” and ferment them into organic fertilizer with fertilizer fermenter.

The chain-plate tipper is a trough-type aerobic compost fermentation tipper that integrates the functions of tipper and material transfer. Its shape is similar to that of a mobile chain conveyor, which uses multi-tooth chain plates to break up and transport materials. During the continuous transportation and transfer of materials, loose materials fully contact with air to complete the whole fermentation process.

Principle of chain-plate stacker

In the process of tipping, the chain-plate tipping machine moves forward slowly. Its multiple-tooth chain plate disperses the bottom material and sends it away. The upper material will fall onto the inclined conveyor scraper continuously. The material will be broken up and mixed during the conveying process, and fall into the groove after turning over the conveying head, thus forming a quantitative displacement. As the tipper continues to move forward, the materials form a regular and equidistant backward movement in the tank, making each tipper uniform and thorough.

Characteristics of plate tipper

1. The chain plate mechanism with chain drive and rolling support is adopted, which has low overturning resistance and low power consumption, and is suitable for deep groove operation.

2. The material will stay on the scraper for a long time when it is turned over, and it will be scattered at a high level, fully contacted with the air, and easy to reduce the moisture content.

3. The lifting of the chain plate of the tipper is controlled by the hydraulic system, which is flexible, safe and fast.

4. The machine can be remotely controlled to advance, overturn, lift and retreat and improve the operating environment.

5. It is equipped with a tank car to change the tank, which can realize the multi-tank operation of a stacker.

The drying link is an important link in the fertilizers manufacturing process, and the method of drying is critical. The fertilizer produced by the organic fertilizer equipment is completely dry fertilizer, so how does the organic fertilizer equipment produce dry fertilizer?

(1) Mechanical dehydration method: The mechanical dehydration method is to squeeze out part of the water by pressurizing the material. Commonly used methods include squeezing, sedimentation, filtration, and centrifugal separation. The mechanical dehydration method can only remove part of the free water in the material, and the combined moisture remains in the material. Therefore, the water content of the material after mechanical dehydration is still very high, generally 40-60%. But mechanical dehydration is an economical method.

(2) Heating and drying method: also known as drying, it uses heat energy to heat materials and vaporize the moisture in the materials. It takes a certain amount of heat to remove moisture from the material. Normally, air is used to dry materials. The air is preheated and sent to the dryer, transferring heat to the material, vaporizing the moisture in the material, forming water vapor, and taking it out of the dryer with the air. After the material is heated and dried, the combined moisture in the material can be removed to achieve the required moisture content of the product or raw material.

(3) Chemical dehumidification method: It uses a hygroscopic agent to remove a small amount of water in gas, liquid, and solid materials. Due to the limited dehumidification ability of the hygroscopic agent, it is only used to remove trace moisture in the material. Therefore, there are few applications in production.

Failure of organic fertilizer equipment in the organic fertilizer manufacturing process will affect the normal work schedule, delay the production plan and cause production losses. We believe that organic fertilizer companies should carry out countermeasures to reduce the failure of organic fertilizer equipment to save capital for production.

Give you a summary of the following countermeasures to reduce the failure of organic fertilizer equipment for your reference:

Countermeasures to reduce the failure of bio-organic fertilizer equipment:

(1) Maintain the initial and basic state of the organic fertilizer equipment and maintain the original design parameters: this is the basic work, that is to say, the first step in reducing the failure of the organic fertilizer equipment is to restore the basic state of the organic fertilizer equipment;

(2) Strictly abide by the operating regulations, prevent and avoid destructive operations, and prevent and avoid overload operation: Most organic fertilizer equipment problems are caused by improper operation or inadequate maintenance. The meaning of regulating employee behavior is to prevent and reduce this Organic fertilizer equipment problems caused by simple reasons;

(3) Continuous discovery, prevention and repair of natural deterioration, so that the organic fertilizer equipment can be repaired in the potential failure state: the significance of independent maintenance, through the first-line employees to participate in the first time to find the problem, comprehensive standardization of production maintenance, advocacy and One of the most important steps in removing the six sources is to solve the problem of the source of the failure;

(4) Correct the defective design, and carry out active maintenance of incidental improvements to the design and manufacturing defects of organic fertilizer equipment;

(5) Prevent man-made deterioration, avoid man-made damage, and prevent destructive maintenance;

(6) Control any abnormal external conditions, and control the acceleration factors for the degradation of organic fertilizer equipment.

No matter what equipment, as long as it is equipment, there will inevitably be some failures. Perhaps because of the quality of the equipment, or because of improper use, or because of long-term use, parts wear, etc., the organic fertilizer equipment will also have some failures after a long time.

Process flow and granulation range of npk fertilizer production line

The npk fertilizer production line will generally crush the fermentation materials that have completed the secondary aging and stacking process and enter the mixing and mixing system. Before mixing and mixing, according to the formula, N, P, K and other trace elements will be added into the mixing and mixing system to start mixing.

The mixed materials are transported to the granulation system, and the granulation enters the cooling system after passing through the dryer. The materials are screened after reaching the normal temperature. The particles that meet the requirements enter the coating machine to wrap the film and start packaging. The particles that do not meet the requirements are crushed by the pulverizer and then returned to the granulation system to continue granulation.

The npk fertilizer production line has quick effect and good economic benefits, and the complete set of equipment has compact flow layout. It reduces the energy consumption of the equipment, makes the operation of the equipment stable, has no discharge of three wastes, and is convenient for maintenance. Wide adaptability of raw materials, suitable for granulation of compound fertilizer, feed and other raw materials, with high product granulation rate. It can produce compound fertilizers of various concentrations and types (including). Especially the granulation of rare earth and ammonium bicarbonate series compound fertilizers.

1. The npk fertilizer production line Applicability of raw materials and its wide range: it is applicable to the direct granulation of fermented livestock and poultry excrement, filter sludge from sugar factories, municipal sludge, paper sludge, distiller’s grains, straw, peat and other organic wastes, and can produce pure organic fertilizer, organic-inorganic fertilizer and bio-organic fertilizer with spherical particles.

2. High balling rate and biological bacteria survival rate: the new technology can make the balling rate high, and the new technology of drying at low temperature and large air volume can make the microbial bacteria survival rate high.

3. The process flow is short and the operation cost is low. The organic raw materials used in this process do not need to be dried, crushed and other preliminary treatment. The process flow is short and the operation cost is low.

Now people pay more and more attention to organic things. Not only the food they eat is organic, but even the fertilizers used in the field are now organic. Using organic fertilizer naturally has its benefits. Pig manure organic fertilizer manufacturing process uses pig manure as raw material, through high-tech equipment fermentation, processing, to produce a series of production equipment for organic manure, the pig manure organic fertilizer produced with it, the role should not be underestimated.

The characteristics of pig manure organic fertilizer:

1. Pig manure organic fertilizer has a kind of organisms and enzymes, which can enhance the biological and enzymatic activities of the land, increase the nutrients of the soil, and improve the pH of the soil, so that the soil can be suitable for the growth of various farming.

2. The organic manure produced by the pig manure organic fertilizer production line is highly nutritious. If it is evenly distributed, no additional fertilizer will be needed for at least 100 days. This effect cannot be replaced by any fertilizer.

3. Pig manure organic fertilizer production line can add drugs to prevent diseases and insect pests during production to reduce diseases and pests and rats.

4. The organic fertilizer produced by the pig manure organic fertilizer granulator is highly nutritious. If it is evenly distributed, at least 100 days will not require the addition of other fertilizers. This effect cannot be replaced by any fertilizer.

5. The organic fertilizer produced by the pig manure organic fertilizer production line is comprehensive in nutrition, and in addition to containing the three major nutrients of nitrogen, phosphorus, and potassium, as well as rich calcium, magnesium, and silicon, changes the soil composition, which is conducive to crop growth.

The use of pig manure organic fertilizer can make crops grow better, which will increase production. Pig manure organic fertilizer products can be made into granules or powder, depending on market demand.