Diesel tail gas treatment fluid suspended matter control treatment system

Abstract

The invention discloses a diesel tail gas treatment liquid suspended matter control treatment system which comprises a reaction kettle, wherein a urea feeding bin for loading urea and a first water tank for loading high-purity deionized water are arranged above the reaction kettle, a stirrer is arranged in the reaction kettle, the reaction kettle is provided with a heater for heating the reaction kettle, the reaction kettle is connected with a coarse filter through a first valve, the coarse filter is connected with an activated carbon decoloration filter, the activated carbon decoloration filter is connected with an ultramicro filter, the ultramicro filter is connected with a cation exchanger, the cation exchanger is connected with an anion exchanger, the anion exchanger is connected with a centrifugal machine, the centrifugal machine is connected with a finished product tank through a second valve, a urea concentration sensor is arranged in the finished product tank, and a second water tank for loading high-purity deionized water and a dropwise adding tank for loading an anti-settling polymerization inhibitor are arranged above the finished product tank. According to the tail gas treatment liquid produced by the system, the generation of suspended matters is reduced, and the product quality is improved.

Description

technical field [0001] The invention relates to the field of automobile tail gas treatment, in particular to a diesel tail gas treatment liquid suspension control treatment system. Background technique [0002] With the increasingly stringent environmental protection regulations, the pollution of diesel engine exhaust pollutants to the environment and the harm to human health have attracted more and more attention. Diesel engine exhaust treatment fluid (commonly known as vehicle urea in China) is widely used in the gas purification system of large diesel vehicles, that is, the reducing agent of the SCR (Selective Catalytic Reduction) system. The principle is to use the exhaust gas treatment fluid and heavy-duty The nitrogen oxides in the exhaust of diesel vehicles such as trucks and buses react to generate N2 and H2O to purify the exhaust, so that the nitrogen oxides discharged can meet the national emission standards of China IV, China V and above. [0003] After years of ...

AI Technical Summary

Problems solved by technology

Existing production and storage environments are difficult to meet the above requirements

Suspended matter (called "algae" in the industry) will breed in the domestically produced tail gas treatment liquid under certain circumstances, and the suspended matter will make the tail gas treatment liquid product difficult to use

Moreover, the time period for the generation of suspended solids fluctuates greatly, ranging from one or two days to several weeks or months, which adds great difficulty to the development of suspended solids removal process

Simply adding filtration steps has little effect

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