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.

Disc organic fertilizer granulator machine is a family member of fertilizer equipment, which plays an indispensable role in the production of spherical granules. There will be some problems in the use of the disc granulator. So, what problems will occur, how can we eliminate these problems?

First, the disc tilted excessively. The more problems encountered in the use of disc organic fertilizer granulators are the grasping and adjustment of inclination. In fact, there is no specific parameter for your reference, but it should be based on the formation of spherical particles. The adjustment measures are to adjust the bolts at the bottom of the disc to change the position and angle of the reducer to achieve the purpose of normal use.

Second, molding is difficult. In addition to the subjective factors of the raw material composition, the spherical particle forming of the disc organic fertilizer granulator is in addition to the subjective factors of the raw material composition, the fineness of the raw material, the water content of the raw material, the addition of the auxiliary binding component, the angle of the disk operation, the speed of the disk operation, etc It is also a problem we commonly encounter. According to the reasons for the above problems, and then make some improvements, we can reach our expected value.

Third, the particles are not uniform. This problem is a common problem in the single-machine operation of the disc organic fertilizer granulator. The treatment of such problems is generally divided into two parts. One is to improve the moisture content, and the other is to control the size of the shaped particles. Then, after drying and sieving, we narrow down our selection.

Fourth, intermittent operation. Such failures of disc pelletizers are generally caused by broken bearings, weightlessness of the disc body, and abnormal motor voltage. Shun vines, timely maintenance, can quickly eliminate the operation failure of the disc granulator.

 Working principle and application scope of organic fertilizer drum dryer

The material enters the inner layer of the rotary drum from the feeding device to realize the downstream drying. The material is continuously picked up and scattered under the inner plate in a spiral way to realize the heat exchange. The material moves to the other end of the inner layer and enters the middle layer for counter-current drying. The material is continuously lifted in the middle layer repeatedly, in a two-step and one-step way. The material in the middle layer not only fully absorbs the heat emitted by the inner drum, but also absorbs the heat of the middle drum, At the same time, the drying time is extended, and the material reaches a good drying state here. The material moves to the other end of the middle layer and falls into the outer layer. The material moves in a rectangular multi-circuit way in the outer drum. The material that has reached the drying effect moves quickly under the action of hot air and is discharged from the drum. The wet material that has not reached the drying effect cannot move quickly because of its own weight. The material is fully dried in this rectangular sheet, thus completing the drying purpose.

The round particles with high moisture content from the organic fertilizer particle shaping section are transported to the feeder of the tubular dryer through the conveyor belt, and the granular materials with chute in the feeder directly enter the rotating drying drum. With the rotation of the drying drum, the granular organic material will be brought up at a certain angle. When installing the drying main pipe and drying branch pipe, the included angle between the main pipe and the horizontal ground coincides with the material picked up. The picked up granular material buries the outlet end of the drying branch pipe, so that the granular material can fully contact with the hot air and prevent heat loss. After the particles are heated, hot water vapor will come up to the upper end of the drying drum. Under the action of high-power induced draft fan for outdoor dust removal and water vapor removal, water vapor dust, etc. will be discharged from the drying device through the air inlet. Finally, the dry organic fertilizer granule material with low moisture is discharged from the material outlet and enters the next cooling section.

Applicable scope of drum dryer:

It is applicable to grains with high water content and high viscosity, such as beer lees, starch lees, rice bran lees, and various residue materials, such as bean dregs, cassava dregs, bean dregs, sweet potato dregs, potato dregs, sugar dregs, fruit dregs, sauce dregs, livestock and poultry excrement, sludge and peat, and other high-moisture materials, and is more suitable for the treatment of livestock and poultry excrement in large, medium and small farms, the production of organic fertilizer from livestock and poultry excrement, compound fertilizer, organic-inorganic compound fertilizer, sludge, grain, food, biogas residue High humidity materials such as medicine residue.

Traditional fermentation organic fertilizer manufacturing process  covers a large area, and the annual output of 30,000 tons of organic fertilizer fermentation area needs about 3,000 square meters, while the use of organic fertilizer fermentation tanks only needs an area of 40 square meters. On the one hand, there is no need to buy so much land On the other hand, it can save the funds needed to build a fermentation shed; the fermentation time is short, the traditional organic fertilizer fermentation takes more than 20 days, and the organic fertilizer fermentation tank can be fermented twice a day, which saves time and improves efficiency. High degree of mechanization, easy operation, traditional organic fertilizer fermentation requires more labor, high labor intensity, organic fertilizer fermentation tank, and humanized design of fermentation tank, one fermentation tank or multiple fermentation tanks can be operated by one person, humic acid fermentation Tank, automatic temperature control, automatic stirring, automatic discharge, automatic feeding; wide adaptability, traditional organic fertilizer fermentation can not be fermented in cold regions in the north and cold regions in winter in the fermentation of organic fertilizers Summer, autumn and winter can be fermented throughout the year.

Advantages of organic fertilizer fermentor:

The whole process has a high degree of automatic automation, strong sealing, and no secondary pollution.

The vertical closed tank structure is adopted, which saves the occupied area, and the fermentation tank better reduces the area requirements for equipment installation.

All parts in contact with feces in the organic fertilizer fermentation tank are made of 304 stainless steel, which is corrosion-resistant and has a long service life.

The operation is fully automated, and the small fermentation tank can realize an unmanned operating system (when the conveyor belt is put in). The inside of the tank is made of polyurethane as a thermal insulation layer, which is less affected by the outside world and ensures fermentation throughout the year.

The organic fertilizer manufacturing process is mainly to screen and magnetically sort the organic waste with a water content of about 30% to 35% after fermentation and decay to prepare round granular organic fertilizer, and add functional bacteria to produce biological organic Fertilizer, adding nitrogen, phosphorus and potassium (total nutrient content less than 15%) can produce organic and inorganic fertilizers.

After the fermented organic waste is subjected to magnetic separation and sieving, the raw materials with binder and other ingredients to be compatible are metered according to the ratio requirements, and then lifted into a multi-dimensional high-efficiency mixer by a bucket elevator for rapid mixing. The mixed material slips out into the mixing bin, and is continuously and uniformly fed into the extrusion granulator by the disc feeder to make cylindrical particles; the cylindrical particles are polished and formed into spherical particles by the circular particle polishing and shaping machine, and are formed by the belt. The machine is fed into the drying, cooling and screening machine (three-in-one model). The particles are dried at a low temperature and large air volume (≤65 ℃) in the front section of the drying and cooling screening machine, and then enter the cooling section for air cooling. After sufficient cooling The material enters the screen installed at the end of the cylinder, and the sieved finished particles are transported by the elevator to the finished product silo, which is measured and packaged by the packaging system; the sifted large particles are returned to the mixing granulation system after crushing; The sieved small particles (basically without powder) can be made into small packages and sold directly.