Device and method for improving urea formaldehyde compound fertilizer on amino acid compound fertilizer production line

A technology of urea-formaldehyde and compound fertilizer, which is applied in the direction of fertilization device, fertilizer mixture, sustainable manufacturing/processing, etc., can solve the problems that have not been developed, and achieve the effects of reducing the frequency of fertilization, saving energy, and high pelleting rate

Inactive Publication Date: 2015-12-23
HEILONGJIANG ZHONGNONG XINXIN AGRI TECH DEV CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Urea-formaldehyde fertilizer is a pioneer product of slow-release fertilizer, but it has not been developed in our country

Method used

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  • Device and method for improving urea formaldehyde compound fertilizer on amino acid compound fertilizer production line
  • Device and method for improving urea formaldehyde compound fertilizer on amino acid compound fertilizer production line
  • Device and method for improving urea formaldehyde compound fertilizer on amino acid compound fertilizer production line

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Embodiment Construction

[0030] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings, but it is not limited thereto. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention should be covered by the present invention. within the scope of protection.

[0031] The following methods are conventional methods unless otherwise specified.

[0032] The following percentages (%) are mass percentages unless otherwise specified.

[0033] 1. Raw materials

[0034] Urea (crushed before use), formaldehyde 37% aqueous solution, 20-40% potassium hydroxide solution, solid ammonium chloride or ammonium chloride saturated solution.

[0035] 2, the method for rapidly preparing urea-formaldehyde in strong acid medium

[0036] Specific steps: In a 5000L urea-formaldehyde reaction tank equipped with an electric stirrer,...

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Abstract

The invention discloses a device and method for improving urea formaldehyde compound fertilizer on an amino acid compound fertilizer production line. The device comprises a urea formaldehyde reaction tank, a formaldehyde storage tank, a urea formaldehyde storage tank, an ammonium chloride tank, an alkali tank, a urea formaldehyde delivery pump, an electromagnetic flowmeter, a granulation sprayer and a rotor drum granulator, wherein the urea formaldehyde reaction tank comprises a reaction tank with a speed reducer and an electric agitator, a steam pipe and a jacket; the urea formaldehyde storage tank and the ammonium chloride tank are connected with a feed port of the urea formaldehyde reaction tank, and a discharge port of the urea formaldehyde storage tank is connected with the rotor drum granulator through the urea formaldehyde delivery pump, the electromagnetic flowmeter and the granulation sprayer. Prepared urea formaldehyde suspension is sent to a storage tank through an agitator pump and then pumped to a roller granulator for compound fertilizer granulation, the urea formaldehyde suspension is not required to be dried, a large amount of energy is saved, and the device and the method are adapted to production of the urea formaldehyde compound fertilizer by appropriate modification of the amino acid compound fertilizer production line.

Description

technical field [0001] The invention is the transformation of the existing amino acid compound fertilizer production line, and relates to a device and method for producing urea-formaldehyde compound fertilizer through transformation of the amino acid compound fertilizer production line. Background technique [0002] Many large and medium-sized compound fertilizer production enterprises in my country have adopted the production process of the amino acid method, that is, adding part of the acid (phosphoric acid, sulfuric acid) and ammonia as raw materials in the production process of the compound fertilizer, and using the heat generated by the neutralization reaction of the acid to improve the granulation process. The temperature of the material increases the granulation rate of the material and reduces the energy consumption. However, with the rapid development of my country's agriculture, due to the rapid release of chemical fertilizers, low utilization rate, serious loss, en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCY02P20/10
Inventor 戴建军
Owner HEILONGJIANG ZHONGNONG XINXIN AGRI TECH DEV CO LTD
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