High-tower-granulationHigh tower granulation process
High-tower-granulationHigh tower granulation process
High tower granulation process

High tower granulation process

A method and equipment for producing granular compound fertilizer by high-tower granulation
  • Colorwhite
  • featuresave energy/Simplified production process/Clean Production Process
  • Place of OriginChina
Product parameters
FAQ

Product introduction

Adopting the advanced melt urea carrier tower granulation technology, the key innovation point of the project is to use molten urea, phosphorus, potassium and other raw materials, under the condition of sufficient mixing, spray down from the top of the tower, and naturally cool and granulate. There is no water introduction and three waste discharge in the production process, and the design of the double tower shape is a major breakthrough on the basis of the original, saving civil construction investment, the process is more coherent, the product appearance is smooth, with pinholes, and it has anti-counterfeiting function. The amount is the highest in the field of compound fertilizer manufacturing in the world; adding a biological enzyme preparation in the production process can effectively inhibit the decomposition and loss of various nutrients in the fertilizer in the soil, and the prospect is very broad.

Main features of high tower granulation equipment

Compared with the commonly used compound fertilizer manufacturing process, the high tower granulation process has the following advantages:

(1) The direct use of urea or ammonium nitrate melt saves the spray granulation process of urea melt, as well as the packaging, transportation and crushing of solid urea, which simplifies the production process.

(2) The granulation process makes full use of the thermal energy of round molten urea or ammonium nitrate, the moisture content of the material is very low, no drying process is required, and energy consumption is greatly saved.

(3) The percentage of qualified product particles in production is very high, so there is almost no amount of returned materials in the production process.

(4) The operating environment is good, and there is no discharge of three wastes, which is a clean production process.

Working principle of high tower granulation equipment

Solid urea or ammonium nitrate (ammonium nitrate, etc.) becomes molten liquid after heating and melting, and the molten liquid after evaporation and concentration can also be used directly. Add corresponding phosphate fertilizer, potash fertilizer, filler and additives to the molten liquid to make mixed slurry. The mixed slurry is sent to the high-tower granulator for spraying and granulation. The granulated material sprayed into the granulation tower through the granulator interacts with the gas resistance rising from the bottom of the tower during the process of descending from the high-tower. After heat exchange, it falls to the bottom of the tower, and the granular materials falling into the bottom of the tower are screened and surface treated to obtain granular compound fertilizers.

The main equipment includes three parts: one is the tower body. The prilling tower is the main equipment for high-tower granulation to produce granular compound fertilizer. The main function of the prilling tower is to carry out crystallization and cooling heat exchange of compound fertilizer in the tower. The diameter and height of the prilling tower are the main indicators of the equipment, which are closely related to the production capacity and quality of the product. The second is granulation equipment. The granulator can meet the requirements of compound fertilizer granulation for various slurry according to the needs, especially for the granulation of medium and low nitrogen varieties of compound fertilizer, which has very good performance; the third is the reaction kettle. The main function of the mixing reactor is to fully stir and mix the materials in the equipment to achieve the purpose of preparing a mixed slurry with good fluidity.

In addition, pretreatment of raw materials, chelation and addition of various preparations are also effective ways to improve fertilizer efficiency. The mixed slurry prepared after pretreatment of the raw materials has greatly improved viscosity, fluidity and crystallization properties of the slurry, which can better granulate production and improve product quality. Chelation is used to avoid the loss of certain nutrients and adverse side effects during the production process, and to protect important nutrients, improve fertilizer efficiency, and reduce costs.

Fertilizer equipment production line
What fertilizer equipment does Hongxin Environmental Protection Company produce?

Tai’an Hongxin Environmental Protection Technology Co., Ltd. is located at the foot of Mount Tai, Tai’an High-tech Development Zone (East Zone), covering an area of 40000 ㎡, a building area of 16000 ㎡, and a total asset of 68 million yuan. It is currently an enterprise with A2 (Class I, II, III) pressure vessel design and manufacturing licenses, and is also a professional manufacturer of chemical equipment in Shandong Province, At the same time, it is a well-known professional manufacturer in the country (compound fertilizer equipment, organic fertilizer equipment, complete set of synthetic ammonia equipment, slow and controlled release fertilizer equipment, coal slurry dryer, BB fertilizer equipment, ammonia granulation, liquid ammonia storage tank, compound fertilizer ammonia station, dryer, pressure vessel, organic fertilizer production line, compound fertilizer production line, BB fertilizer production line)

What are the company’s main production line equipment and products?

The company has more than 100 sets of professional processing equipment such as CAD design center, steel casting branch, large gear processing equipment, large lathe, etc. It has a team of high-quality process engineers and professional equipment installation technicians. The company provides users with technical consultation, process design, installation, commissioning, personnel training, turnkey project and other one-stop services, and guarantees perfect after-sales service in the later stage.

Comprehensive strength of the company’s production?

  • Design and manufacture of Class I, II and III pressure vessels.
  • Design, manufacture and installation of complete set of synthetic ammonia equipment.
  • 200000-300000 tons automatic batching BB fertilizer production line
  • 200000-300000 t/a urea base, ammonia acid granulation and compound fertilizer production line
  • 1-20 million tons/year organic and inorganic fertilizers, garbage, sludge and other organic waste harmless treatment fertilizer equipment
  • National patent 1-20 million tons/year controlled-release coated fertilizer process and equipment (patent No. 20072021844. X)
  • National patent: 200000t/a domestic and paper sludge; Monosodium glutamate black liquor spray drying fertilizer equipment (patent No. ZL20072021843.5)

Business scope of the company?

Our products are sold all over the country and exported to more than 20 countries and regions such as the United Arab Emirates, Indonesia, Vietnam, Bangladesh, South Korea, Japan, Myanmar, South Korea, Nigeria and Australia.

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