Tail gas purification device for tunnel construction machinery

A kind of exhaust gas purification device and tunnel construction technology

Inactive Publication Date: 2022-05-24
NORTH CHINA INST OF AEROSPACE ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an exhaust gas purification device for tunnel construction machinery, which can effectively solve the problem of insufficient combustion of the engine due to low oxygen concentration and poor air circulation in the tunnel construction machinery proposed in the above background technology, thereby causing exhaust emissions. Pollution is a more serious problem

Method used

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  • Tail gas purification device for tunnel construction machinery
  • Tail gas purification device for tunnel construction machinery

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Embodiment

[0032] Example: such as Figure 1-2 As shown, the present invention provides a technical solution, a tail gas purification device for tunnel construction machinery, comprising a loader 1, the top of the loader 1 is provided with a tail gas purification mechanism 2, the exhaust gas purification mechanism 2 includes a purification box 3, a purification box exhaust pipe 4, a first exhaust pipe 5, a control system 6, an air compressor 7, a first compressed air branch pipe 8, a second compressed air branch pipe 9, a fuel system 10, a temperature sensor 11, a combustion chamber 12 and a second exhaust pipe 13;

[0033] Loader 1 top side is installed with a purification box 3, the top of the purification box 3 is connected to the purification box exhaust pipe 4, the top side of the purification box 3 is connected to the first exhaust pipe 5, the top side of the purification box 3 is provided with a control system 6, and the control system 6 side is connected to the air compressor 7, the a...

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Abstract

The invention discloses a tail gas purification device for tunnel construction machinery, which is characterized in that a tail gas purification mechanism is arranged at the top of a loader, a fuel tank compressed air chamber is arranged at the top of the inner side of a fuel system, and the bottom of the fuel tank compressed air chamber is connected with a fuel tank fuel chamber; engine exhaust pollutants enter the combustion chamber of the tail gas purification mechanism, if a control system detects that the temperature is lower than 600 DEG C, fuel is injected for ignition and combustion, the temperature of the combustion chamber is maintained to be 600 DEG C or above, and after soot particles and harmful substances in engine exhaust are fully combusted in the combustion chamber, the soot particles and the harmful substances are discharged into the purification box. The exhaust gas is absorbed and purified by the weakly alkaline liquid and converted into clean gas to be exhausted into the atmosphere of the tunnel, so that the air in the tunnel is kept clean, the body health of constructors is guaranteed, accurate control is achieved through the simple structure, the purification efficiency in the tunnel is improved, meanwhile, the production cost is low, and popularization and implementation are convenient.

Description

Technical field [0001] The present invention relates to the technical field of exhaust gas purification equipment, specifically a tail gas purification device for tunnel construction machinery. Background [0002] In the construction of railways and highways, tunnel construction occupies a considerable proportion, tunnel engineering in the construction process will produce pollution, pollution sources mainly include the installation of internal combustion engine as a driving force of construction machinery emissions of harmful gases and blasting generated by the smoke, due to the construction machinery operation time is longer, thus becoming the main source of pollution from tunnel construction pollution, tunnel construction machinery belongs to non-road mobile machinery, the state has the corresponding emission standards restrictions, Therefore, the post-treatment system is installed in the non-road mobile machinery at the factory to meet the emission standards of the non-road; ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/02F01N3/08F01N3/10F01N3/24F01N11/00F01N9/00
CPCF01N3/02F01N3/0807F01N3/10F01N3/24F01N11/002F01N9/00Y02T10/40
Inventor 向立明何涛焦运景白亚双刘志强
Owner NORTH CHINA INST OF AEROSPACE ENG
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