The granulation process and equipment of urea formaldehyde compound fertilizer production line

fertilizer granulator Apr 29, 2024

Urea-formaldehyde slow-release compound fertilizer is formed by the reaction of urea and formaldehyde in a certain environment. The methylol urea solution continues to shrink in an acidic environment, producing partially or mostly water-insoluble methylol urea and polymethyl urea solutions; these solutions of different contents are mixed together and are generally referred to as urea-formaldehyde solutions.

The npk fertilizer production line mainly includes feeder, disc mixer, chain crusher, granulator, drum dryer, drum cooler, drum screener, finished product warehouse, automatic packaging machine, belt conveyor, dust settling chamber, heat exchanger, etc. The granulator is an important link in the production of granular npk compound fertilizers. Common granulators include double roller granulator, rotary drum granulators, disc granulators, etc.

Add urea and water into the urea-formaldehyde reaction tank, mix and dissolve the urea, then pour into the sodium hydroxide solution, adjust the pH value to 7.5, heat to 60°C, and then add a certain amount of formaldehyde to the reaction tank at a constant temperature of 60°C. Most of the urea and formaldehyde solution react within a certain period of time to produce methylol urea solution, then add industrial sulfuric acid or phosphoric acid, adjust the pH value to about 3.5, keep the temperature at 50 °C, and fully react for a certain period of time to generate urea-formaldehyde solution. Then the regulating valve and the solution enter the buffer tank, and then are sprayed into the solid material bed of the drum granulator through the pump, electromagnetic flowmeter, and granulation nozzle, and then poured into the powdered solids such as urea, ammonium phosphate, and potassium chloride transported by the seasoning post. The material is then rolled and agglomerated in a rotary drum granulator or disc granulator to form granules. The material and waste gas emission treatment produced by the granulator are the same as those of general compound fertilizers.

How to solve the problem of aging equipment for handling chicken manure

fertilizer granulator Apr 29, 2024

The farm is facing the problem of being unable to process chicken manure because the organic fertilizer equipment for chicken manure treatment is severely aging and cannot operate normally. The equipment for handling chicken manure may encounter the following problems: unstable operation of the equipment, difficulty in cleaning the equipment, and aging of equipment and facilities.

Firstly, unstable operation of organic fertilizer equipment is a common problem, which may be due to changes in the humidity of chicken manure, making it difficult to control the temperature and humidity inside the equipment. The solution to this problem can be to optimize the temperature and humidity control system of the equipment to ensure a stable operating environment. In addition, it is also very important to standardize the management of equipment operation processes and avoid excessive loads or inappropriate operations.

Secondly, difficulty in cleaning organic fertilizer equipment is also a common problem. Chicken manure contains various organic substances that can easily adhere to the surface of equipment, making it difficult to clean. To solve this problem, the equipment can be designed as a structure that is easy to disassemble and clean, such as adding detachable parts or using anti stick coatings. In addition, regular equipment cleaning and maintenance, timely removal of blockages and residues, are also important steps to ensure the normal operation of the equipment.

Finally, the aging of organic fertilizer equipment and facilities is also a problem that needs attention. Over time, certain components of the equipment may experience wear, aging, or damage, affecting the operational efficiency and stability of the equipment. To solve this problem, regular equipment inspections and maintenance can be carried out, and aging components can be replaced or repaired in a timely manner to ensure the long-term stable operation of the equipment.

Equipment configuration for producing powdered and granular organic fertilizers

fertilizer granulator Apr 29, 2024

For friends who are preparing to start organic fertilizer production, there are many things that need to be done, such as project initiation, production planning, process selection, equipment procurement, factory construction, and possibly bidding matters. Since 2020, due to the continuous increase in raw material prices, it has had a significant impact on equipment prices. Therefore, many friends are very concerned about how much it costs to put a set of organic fertilizer equipment into operation?

If organic fertilizer is produced on a small scale, there is no need for commercial sales, only the early fermentation process is required, and there is no need for deep processing in the later stage. There are currently three forms of organic fertilizer fermentation equipment:

1. Select an organic fertilizer fermentation tank.

Fermentation tank treatment of organic fertilizer is suitable for situations with strict environmental protection requirements and high fermentation efficiency requirements. Currently, using fermentation tanks to treat organic fertilizer can produce raw materials within 48 hours. Fermentation tanks can be combined with deodorization systems to completely solve environmental pollution problems, and are not affected by external temperature and environmental terrain, and can be produced at any time.

2. Use a small slot flipping machine.

The slot type flipping machine operates stably and can be used for slot changing operations with one flipping machine. It can handle multiple slot materials with high output and even flipping. It is mostly used in organic fertilizer processing plants. The price of a small 2-meter slot type flipping machine is only about 30000 yuan.

3. Choose a self-propelled stacker.

Self moving flipping machines are divided into wheeled and tracked types, characterized by large processing capacity and free movement. They are suitable for organic fertilizer flipping operations in vast areas and are suitable for organic fertilizer processing plants that do not want to carry out a large number of civil engineering projects. The price of tracked flipping machines is around 50000 yuan.

Simple configuration of equipment for producing powdered organic fertilizer

The production of powdered organic fertilizer involves fine crushing treatment after organic fertilizer fermentation. The required equipment includes a fermentation turner, a forklift silo, a semi wet material crusher, a drum screening machine, and automatic packaging, which is called powdered organic fertilizer. This low-end configuration of powder organic fertilizer production equipment can be achieved at a price of around 100000 yuan. Production equipment for powdered organic fertilizer.

Equipment for producing granular organic fertilizers

The production process of granular organic fertilizer is currently relatively complete and complex, based on continuous fermentation technology and powder organic fertilizer processing. Therefore, there are relatively many required equipment, including fermentation machines, forklift silos, semi wet material crushers, horizontal mixers, organic fertilizer granulators, dryers, cooling machines, drum screening machines, wrapping machines, and automatic packaging machines. When there are special requirements for the process, dynamic batching is also required. The price of a small complete set of equipment is approximately 200000 to 300000 yuan.

Using a disc granulator to process sheep manure organic fertilizer in a sheep farm

fertilizer granulator Apr 29, 2024

Common organic fertilizer granulators include: double roller granulator, rotary drum granulator, disc granulator machine, new organic fertilizer granulator, new two-in-one organic fertilizer granulator, flat die granulator, Ring die granulator, etc. Today we will talk about the skills of choosing an organic fertilizer granulator.

Selection skills of disc granulator machine: First of all, be familiar with the performance characteristics of the disc granulator.

Disc granulator is divided into two types: plane rotating disc granulator and inclined disc granulator. It is a professional organic fertilizer equipment for producing spherical granules.

The inclined disc granulator is a traditional process. The base of the disc granulator is fixed, the reducer runs through the motor, and then pushes the outer disc of the inclined disc granulator to rotate, and the incoming material rolls into a ball. The disc granulator has low rotation speed and adjustable inclination angle, and is suitable for producing spherical granules of organic fertilizer, compound fertilizer, chemical raw material, biological bacterial fertilizer and biological fertilizer. Both organic fertilizer production lines and npk production line can be used, which are characterized by high output and simple operation.

The characteristics of the plane rotary disc granulator are that the main body is fixed, the inner disc rotates, and the material entering the disc through centrifugal rotation is rolled into a ball. The plane rotating disc granulator runs at a higher speed and is more suitable for materials with good adhesion, high density and low output requirements. It is characterized by high particle symmetry and fast discharge.

With the upgrading of organic fertilizer equipment, the new horizontal centrifugal organic fertilizer granulator has become the leading role of the disc granulator, and the output and particle symmetry have been raised to a new level.

Equipment composition of an annual production line for 20000 tons of cow manure organic fertilizer

fertilizer granulator Apr 29, 2024

What equipment does the annual production line of 20000 tons of cow manure organic fertilizer belong to a medium to large scale?

1、 Fermentation equipment

The fermentation process plays a crucial role in the production of organic fertilizers, and can even determine the quality of organic fertilizers. There are two common fermentation equipment in an organic fertilizer production line with an annual output of 20000 tons:

1. Fermentation tank

Fully sealed fermentation, with a small footprint, low environmental pollution, and high fermentation efficiency, is very suitable for use in small fermentation sites with strict environmental protection. And the fermentation tank has an insulation device, so it can be used normally even in the cold winter in the north.

2. Slot flipping equipment

The trough type flipping equipment requires the construction of a fermentation tank, which is usually indoors and is commonly used in environmentally strict and rainy areas. The equipment includes chain plate flipping machine, disc flipping machine, slot flipping machine, etc. The equipment has a large processing capacity, high degree of automation, and does not require manpower. Very suitable for medium to large organic fertilizer equipment factories.

2、 Cow manure manure fertilizer making equipment

Due to its suitability for agricultural production, granular organic fertilizers are quite popular in the market. A production line with an annual output of 20000 tons is relatively large, and it is recommended to equip it with granulation equipment.

The fertilizer making equipment mainly includes crushers, screening machines, granulators, dryers, cooling machines, packaging machines, etc. Except for the various types of granulation equipment, the other types of equipment are relatively single, with only differences in specifications and sizes.

The granulation equipment mainly includes rotary granulator, toothed granulator, disc granulator, flat mold granulator, etc. Suitable equipment can be configured according to the actual situation of the site, finished product form, etc.

Working principle and advantages of vertical organic fertilizer crusher

fertilizer granulator Apr 29, 2024

The organic fertilizer vertical crusher is an optimized design based on advanced fine crushing equipment, which is a non sieve and adjustable fine crushing equipment, and can be widely used as the mainstream equipment in fertilizer equipment. It is also a crushing equipment used in the compound fertilizer industry, suitable for crushing raw materials and return materials, especially for materials with high moisture content, with strong adaptability, not easy to block, and smooth feeding.

The material enters from the feeding port and collides with the high-speed rotating casing inside the casing. After being impacted, the material is compressed and crushed, and then collides with the inner wall of the casing for counterattack before colliding with the hammer. During the falling process, it undergoes several impacts and becomes powder or particles below 3mm, which are discharged from the lower part

The organic fertilizer vertical crusher adopts a counterattack crushing mechanism, which saves about 20% energy and improves production efficiency by 20-25% compared to other similar equipment. If used in the grinding process, the effect is more significant in terms of system energy conservation and increased mill output.

Performance advantages of organic fertilizer vertical crusher:

1. The structure is simple and reasonable, with low operating costs. Using the principle of stone striking, the wear is minimal.

2. High crushing rate and energy-saving.

3. It has the function of fine crushing and coarse grinding.

4. It is less affected by the moisture content of the material, and the moisture content can reach about 8%.

5. The working noise is lower than 75 decibels (dB level), and there is less dust pollution.

6. Suitable for crushing medium hard and extra hard materials

What are the characteristics of organic fertilizer drum granulation processing fertilizer?

fertilizer granulator Apr 29, 2024

The organic fertilizer rapid granulation equipment is the core equipment for the production of organic fertilizer. The common organic fertilizer granulators on the market include: double roller granulator, rotary granulator, disc granulator machine, and new organic fertilizer granulator. machine, new two-in-one organic fertilizer granulator, flat die granulator, ring die granulator, can be used in npk production line, organic fertilizer production, bio-organic fertilizer and other different production lines, different equipment has different working principles, Granulator prices vary.

Features of rotary drum granulator:

1. Choose a variety of combined lifting devices. The dryer designed and manufactured by our company has carried out a number of technological innovations in the lifting device system. The new multi-combination lifting device is adopted to overcome the wind freezing phenomenon and heat of the traditional dryer. High efficiency, reducing coal consumption by about 20%.

2. The large and small gears of the gearbox use pin-type replaceable gears instead of traditional cast steel gears, which not only saves cost and investment, but also greatly reduces maintenance costs and time. The appearance structure of the rotary dryer is more reasonable, the wearing parts are less, and the design is user-friendly.

3. Applicable to various combustion furnaces: high temperature boiling furnace, pulverized coal furnace and artificial coal furnace.

4. With a centralized control system, it can realize the central computer monitoring and management of large enterprises.

5. The new and reasonable mechanical structure reduces the floor space, the production capacity is large, and the operation is convenient. Advanced and perfect technology, high temperature industry, safe and reliable, energy saving and environmental protection, greatly saving costs.

Zhengzhou Huaqiang organic fertilizer equipment manufacturer is based on the principle of integrity management, is aggressive, and has the courage to develop, including organic fertilizer production lines, npk fertilizer production line, etc., perfect after-sales service and supporting facilities, is a main organic fertilizer granulator, organic fertilizer Turner, organic fertilizer crusher and other organic fertilizer equipment.

Process steps for producing granular organic fertilizer from cow manure

fertilizer granulator Apr 29, 2024

The organic fertilizer production line is a series of equipment and processes that convert organic fertilizers into organic fertilizers. It is a very important part of the agricultural production process and can help farmers use fertilizers more efficiently to improve the growth rate and yield of crops. The complete fertilizer equipment includes the following main equipment.

Process steps for producing granular organic fertilizer from cow manure

Step 1: Fermentation and maturation

Collect cow manure and urine, mix them with straw, hay, and other materials to control the moisture content by about 65%. Stack the materials into long strips with a width of 2-5 meters or more, sprinkle 1KG of aerobic fermentation bacteria with 2-3 cubic meters, mix thoroughly with a wheeled composting machine, and let them ferment. After fermentation, use a composting machine to cool the materials.

Step 2: Material crushing

Crush the fermented and matured organic raw materials. Organic fertilizer wet material crusher is a professional crushing equipment for high humidity, multi fiber substances. By using high-speed rotating chains, the particle size of the crushed fibers is good.

Step 3: Mixing and stirring

Add trace elements, excipients, humic acid, clay, etc. and mix and stir. Using a vertical mixer, the mixing speed is fast and the uniformity is good. It can mix viscous materials with an added liquid of 30%. During operation, there are two opposite rotating blade rotors stirred in the middle. Adopting a lower door for fast unloading speed and minimal residue.

Step 4: Forming granulation

The material is granulated using a disc granulator, an organic fertilizer stirring tooth granulator, or a new type of stirring tooth rotating strand three combination granulator.

Step 5: Drum drying

The organic fertilizer dryer further removes moisture from the granulated particles to meet the standard requirements for organic fertilizer moisture content.

Step 6: Drum cooling

Cooling the dried particle material with a cooling machine helps to preserve the quality of the particle storage.

Step 7: Screening and return system

Due to the difference in particle size of the granular material output by the granulation and forming system, it needs to be screened and graded. The selected drum type screening machine requires low vibration, low noise, convenient screen replacement, and is equipped with a screen cleaning device.

Step 8: Particle coating equipment

The coating machine is composed of a screw conveyor, a mixing tank, an oil pump, a main engine, etc., and is used for powder flapping or liquid coating technology. It can effectively prevent fertilizer from clumping, and the host is lined with polypropylene or acid resistant stainless steel.

Step 9: Packaging equipment

Granular materials are packaged and transported through conveying equipment into the finished product warehouse. Granular materials are quantitatively weighed and packaged through automatic packaging scales.

Equipment process flow of NPK compound fertilizer production line

fertilizer granulator Apr 29, 2024

NPK compound fertilizer is a multifunctional fertilizer that contains three main nutrients: nitrogen, phosphorus, and potassium, which can meet the nutritional needs of crops at different growth stages.

Equipment process flow of NPK compound fertilizer production line:

Usually includes raw material pretreatment, material batching, hopper lifting, mixing and homogenization, particle granulation, drying, screening and other processes. In this process, different devices are involved in each link.

Firstly, the pre-treatment stage of raw materials involves cleaning, crushing, screening, and other processes to ensure the purity and particle size uniformity of the raw materials. Then, in the material ingredient stage, various raw materials are mixed in a certain proportion to ensure a balanced nutritional composition of the final product.

Next, the prepared materials will be transported to the mixing and homogenization equipment through a hopper elevator, which can fully mix and evenly distribute the materials. After the mixing and homogenization is completed, the material will enter the granular fertilizer granulator and be compressed into granules through the granulation process.

Finally, the particles will enter the fertilizer dryer for dehumidification treatment, and then pass through screening equipment for classification to obtain products of different specifications.

The above is a brief introduction to the process flow of NPK compound fertilizer production line equipment. There are various types of equipment involved in this process, but they all have their own characteristics and can effectively complete tasks in each link.

The role of drum screening machine in granulation of fertilizer production line

fertilizer granulator Apr 29, 2024

The organic fertilizer production line equipment includes: fermentation turner, crusher, feeder, horizontal mixer, double roller granulator, dryer, cooler, screening machine, weighing and packaging machine. Let’s take a look at the trommel screening machine. The trommel screening machine is a new generation of professional equipment for self-cleaning materials after the electric vibrating screen and the general mesh vibrating screen manufactured by major enterprises. It is generally suitable for the screening of solid materials with a particle size of less than 300mm. It has the characteristics of high screening efficiency, low noise, small dust volume, long service life, small maintenance, and convenient maintenance. It can be used in organic fertilizer and npk production line, etc, and its screening capacity is 60 tons/hour~1000 tons/hour.

Features of rotary screener machine:

(1) The screening efficiency is high, because the equipment is equipped with a plate screening mechanism. During the screening process, no matter whether the material entering the separation screen is sticky, wet or impurity, the relative movement of the screening machine and the screen body cannot stop the screening. Thus, the screening efficiency of the equipment is improved.

(2) The entire screening mechanism with a good working environment is designed in a sealed dust jacket, which completely eliminates the phenomenon of dust flying during the screening process, thereby improving the working environment.

(3) When the low-noise equipment is running, the noise formed by the material and the rotating screen is completely isolated by the sealing dust jacket, so that the noise cannot be transmitted to the outside of the equipment, thereby reducing the noise of the equipment.

(4) The equipment screen with long service life is composed of several round flat steels with a size of 16 mm × 12 mm, and its cross-sectional area is much larger than that of other separation equipment screens, thereby improving the service life.