Membrane wrapping control-releasing fertilizer continuous production method and apparatus

A technology of coated controlled-release fertilizer and production method, which is applied in the direction of fertilization device, fertilizer mixture, application, etc., can solve the problems of complex operation, failure to realize continuous production of coated controlled-release fertilizer, cumbersome steps, etc., and achieve simple operation , reduce energy consumption and avoid cumbersome operations

Active Publication Date: 2009-03-25
KINGENTA ECOLOGICAL ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This coating equipment manually observes the fertilizer transfer status in the spray tower, and uses the valve elements on the wall of the adjacent spray tower and the repeated opening and closing of the gate valve to realize the flow of fertilizer from one spray tower to another s

Method used

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  • Membrane wrapping control-releasing fertilizer continuous production method and apparatus
  • Membrane wrapping control-releasing fertilizer continuous production method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example 1:

[0020] The device of the present invention realizes the continuous production method of coated controlled-release fertilizer, the structure is as follows figure 1 , 2 As shown, it includes quantitative feeder 1, continuous film-coated fluidized bed 2, induced draft fan 3, condenser 4, heater 5, conveyor belt 6, finished product bin 7, solvent recovery tank 8, dissolution tank 9 and spray liquid The storage tank 10; the specific connection method is: the quantitative feeder 1 is connected to the feeding bin 11 of the continuous coating continuous type 2, the air outlet of the continuous coating fluidized bed 2 is connected to the induced draft fan 3 through the air duct, and the induced draft fan 3 passes through The air pipe is connected to the condenser 4, the condenser 4 is connected to the heater 5 through the air pipe, the heater 5 is connected to the air inlet of the continuous coated fluidized bed 2 through the air pipe, and the discharge port of the...

Example Embodiment

[0022] Example 2:

[0023] The device of the present invention realizes the continuous production method of coated controlled-release fertilizer, and the structure is still as follows figure 1 , 2 As shown, the difference is that the upstream coating tower has a volume of 2.0m 3 feeding bin. Dissolving kettle 9 is all 7m by volume 3 It consists of 3 dissolution tanks connected in parallel.

Example Embodiment

[0024] Example 3:

[0025] The device of the present invention realizes the continuous production method of coated controlled-release fertilizer, and the structure is still as follows figure 1 , 2 As shown, the difference is that the upstream coating tower has a volume of 2.5m 3 feeding bin. Dissolving kettle 9 is all 9m by volume 3 5 dissolution tanks are connected in parallel.

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PUM

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Abstract

The method discloses a continuous mode production method and a device of a coated controlled release fertilizer. The method comprises the steps: polyethylene resin and paraffin wax are added in a dissolving kettle containing turpentine oil, and then heated for dissolving; a granulated fertilizer is continuously added in a feeding bin of a continuous mode coated fluidized bed; when the fertilizer in the feeding bin covers a feeding valve, the valve is opened to carry out feeding; and the coating is completed in hot air and the volatilized solvent can be recycled for use after condensation. By utilizing the method and the device for producing the coated controlled release fertilizer, the operation is simple, not only the continuous production is truly realized, but also the tedious operations of valve elements and a paddle valve switch, thus being capable of reducing the energy consumption and improving the production efficiency.

Description

technical field [0001] The invention belongs to the technical field of controlled-release fertilizer production, and in particular relates to a method and device suitable for continuous production of coated controlled-release fertilizer. Background technique [0002] Coated controlled-release fertilizer has become a new direction for the development of the fertilizer industry. At present, intermittent production methods are mainly used. The advantages of intermittent production are large output and good coating uniformity, but its disadvantages are also obvious, and energy consumption is high. In addition, The service life of parts of the equipment is also adversely affected due to the need for constant shutdowns and start-ups. It has been found that a "spouted bed" can be used to produce high-quality coated controlled-release fertilizers. At present, only Japan and the United States have simple reports of similar spouted bed continuous production equipment, but these existi...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 万连步张晓义徐恒军
Owner KINGENTA ECOLOGICAL ENG GRP
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