Exhaust corrugated fire retardance purifier of mining diesel engine

A technology for purification devices and diesel engines, which is applied in exhaust devices, mufflers, mechanical equipment, etc., can solve problems such as large exhaust resistance and exhaust gas pollution, and achieve low exhaust resistance, reduced CO concentration, and improved fuel economy. Effect

Active Publication Date: 2015-01-07
TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] In order to control the tail gas pollution caused by the exhaust system structure of the existing explosion-proof diesel engine used in mines, and at the same time solve the proble

Method used

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  • Exhaust corrugated fire retardance purifier of mining diesel engine
  • Exhaust corrugated fire retardance purifier of mining diesel engine
  • Exhaust corrugated fire retardance purifier of mining diesel engine

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Embodiment Construction

[0014] The specific embodiment of the present invention will be further described in conjunction with the accompanying drawings.

[0015] The exhaust corrugated fire arresting and purifying device for mining diesel engine includes: a pipe flange 1, a front housing 2, a middle housing 5, a rear housing 8, a corrugated catalytic purification layer 3, a corrugated fire arresting layer 6 and a gasket 4. The device of the present invention is connected behind the exhaust manifold of the mining explosion-proof diesel engine, and the pipe flange 1 is connected with the outlet flange of the exhaust manifold, and the pipe flange 1 and the front housing 2 are welded as one. The temperature is 400-500°C. In order to ensure that the outer surface temperature of the shell does not exceed 150°C and at the same time ensure the activity of the corrugated catalytic purification layer 3, the interlayer of the front shell 2 is equipped with heat-insulating aluminum silicate wool 7, and th...

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PUM

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Abstract

The invention belongs to the technical field of mining diesel engine exhaust systems, and particularly relates to an exhaust corrugated fire retardance purifier of a mining diesel engine, in order to solve the problem of severe tail gas pollution caused by the structure of an existing mining explosion-proof diesel engine exhaust system and the problem of large exhaust resistance caused by an existing flat flame arrester. A pipe flange and a front housing are connected into a whole, the front housing and a middle housing are connected through a flange, the middle housing and a rear housing are connected through a flange, a corrugated catalyst purification layer is arranged between the front housing and the middle housing, a corrugated flame retardance layer is arranged between the middle housing and the rear housing, metal gaskets are arranged in the front and in the back of the corrugated flame retardance layer and the corrugated flame retardance layer, thermal insulation material aluminum silicate wool is arranged in the front housing and the middle housing, the middle housing is internally filled with cooling water, alumina coatings are arranged on two sides of a ventilation passage of the corrugated purification layer, and platinum, palladium and rhodium catalysts are attached to the two sides of the ventilation passage. By the purifier, content of carbon cigarette pellet, NOx and CO in tail gas is lowered effectively, and sparks in exhaust can be blocked from being discharged from the device by the corrugated fire retardance layer.

Description

technical field [0001] The invention belongs to the technical field of exhaust systems of mining diesel engines, and in particular relates to an exhaust corrugated flame arresting and purifying device for mining diesel engines. Background technique [0002] At present, the exhaust system of mining diesel engines adopts exhaust gas treatment box and exhaust flat flame arrester to carry out explosion-proof treatment and exhaust gas purification treatment of exhaust gas, but in practice, it is found that after the exhaust gas is treated by water in the exhaust gas treatment box, the CO and NO emitted by the mining diesel engine The content of soot and soot particles is still high, which will cause great damage to the body of underground workers. At the same time, it is found that after the flat flame arrester is used, the air flow resistance of the flat flame arrester is large, and the ventilation rate is only 33.3%. The exhaust resistance increases, the combustion in the cylin...

Claims

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Application Information

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IPC IPC(8): F01N3/28F01N13/14
Inventor 杨文杰于向东毛国正张建广张梦奇阎志伟桑盛远白雷王海涛张春英李健康
Owner TAIYUAN INST OF CHINA COAL TECH & ENG GROUP
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