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Automotive urea production equipment and process

A technology for production equipment and urea for vehicles, which is applied in the field of chemical production equipment and technology, can solve the problems of production personnel's physical damage, strong pungent smell, production environment pollution, etc., and achieve the effect of good purification effect

Inactive Publication Date: 2018-03-09
衡水卡力洁环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Ammonia gas is produced when urea dissolves, which has a strong pungent smell, and is directly discharged into the air, causing pollution to the production environment and physical damage to production personnel

Method used

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  • Automotive urea production equipment and process

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Effect test

Embodiment

[0028] The urea used in vehicles is an aqueous solution of urea with a certain concentration. In the production of the solution provided in this example, industrial water is used to filter through the three-stage water filtration system (1) of physical filtration + ion exchange + electrodialysis, and the online water quality detection system dynamically monitors the water quality at any time, and adds qualified purified water to the dissolution tank. (4). The urea in this embodiment uses agricultural urea as the raw material, and is added to the dissolving tank (4) through the feeding system (2). The dissolving tank is provided with an air jet system (46), which can be distributed in a single-ring ring or a multi-ring ring or a spiral ring. Weakly alkaline; the gas storage system (3) is composed of an air compressor, a gas storage tank, a blowing system arranged in the dissolving tank and a connecting pipeline, and is connected with the gas storage system. When the urea soli...

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Abstract

The invention discloses automotive urea production equipment and process. The automotive urea production equipment comprises a water filtering system, a charging system, a gas storage system, a dissolving tank, a urea purifying system and a finished product storage tank. Industrial water is added in the dissolving tank through the three-stage water filtering system; agricultural urea is added in the dissolving tank through the charging system; a gas spraying system is arranged in the dissolving tank and is connected with the gas storage system, when urea solid is dissolved, the gas storage system is opened, and compressed gas is sprayed into the dissolving tank so as to facilitate dissolving; ammonia is generated in a dissolving process, enters a filter through an exhaust pipe on the top of the dissolving tank, and is absorbed and then is discharged into the atmosphere; and a urea solution enters a three-stage solution filter via a solution discharge pipe and then is filtered, and a finished product is placed in the storage tank. By the scheme, the shortcoming that lots of biuret is generated by traditional heating and dissolving is overcome, and meanwhile, the ammonia generated bydissolving is purified and then discharged.

Description

technical field [0001] The invention relates to a chemical production equipment and technology, in particular to a vehicle urea production equipment and technology. Background technique [0002] With the continuous increase in the number of automobiles in my country, the exhaust emissions of automobiles, especially diesel vehicles, NOX and particulate matter have become the main sources of urban air pollution. Heavy-duty diesel vehicles sold from July 1, 2013 must meet the National IV emission standards, and the emission of nitrogen oxides and particulate matter has been significantly improved. At present, car manufacturers generally use selective catalytic reduction (SCR) technology to treat diesel vehicle exhaust. SCR is an exhaust gas post-treatment technology, which uses urea solution to treat nitrogen oxides in the exhaust gas and then discharges them. [0003] In the production of urea for vehicles, solid agricultural urea can be dissolved in purified water to form a...

Claims

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Application Information

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IPC IPC(8): B01F13/02B01F1/00C02F9/06B01D53/90B01D53/56B01F33/40
CPCB01D53/9409C02F9/00C02F2301/08C02F1/4693C02F2103/04C02F1/001C02F1/281C02F1/42B01D2258/01B01F21/40B01F21/02B01F21/503B01F33/401B01F33/4094
Inventor 徐勇
Owner 衡水卡力洁环保科技有限公司
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