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Onboard dust removal system and method for heading machine

A technology of dust removal system and roadheader, which is applied in separation methods, chemical instruments and methods, and dust prevention, etc. It can solve the problems of unsatisfactory dust collection and dust removal effects, small air volume, etc., and achieve the effect of strong practicability and increased air volume

Active Publication Date: 2022-03-25
JIANGSU XCMG CONSTR MASCH RES INST LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of small air volume and unsatisfactory dust collection and dust removal effect of the existing airborne dry dust collector on the roadheader, the present invention proposes an onboard dust removal system and method of the roadheader, which uses spray to reduce dust generation and eliminates the generated dust. The dust control device formed by the air curtain and water curtain, the airflow blowing to the face of the face and the ventilation makes the dust concentrate on the face of the face, and then quickly collects and purifies it through the dust suction device and the large-volume fan, so as to discharge clean air

Method used

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  • Onboard dust removal system and method for heading machine
  • Onboard dust removal system and method for heading machine
  • Onboard dust removal system and method for heading machine

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Embodiment 1

[0028] Such as figure 1 with figure 2 As shown, the present invention provides an airborne dust removal system for a roadheader, including a dust control device, a dust collection and removal device, and a dust reduction device. The dust control device includes a first dust control device and a second dust control device, the first dust control device includes a spray rod 7 installed on the front end of the roadheader, and the spray rod 7 is connected to the water tank through a high-pressure water pump; 6-15 fan-shaped water-air nozzles 8 are fixedly installed horizontally or arc-shaped on the spray rod 7, and spray high-pressure gas while spraying water mist, and the spray pressure is 0.4-0.8MPa. The water-air mixed spray can not only improve the atomization effect of the nozzle, thereby improving the dust reduction effect, but also reduce the water consumption. Each fan-shaped water-air nozzle 8 is sprayed horizontally or along the arc tangent, and the fan-shaped mist is ...

Embodiment 2

[0035] The present invention also provides an airborne dust removal method for a roadheader, using the above airborne dust removal system for a roadheader, including:

[0036] When the roadheader is working, it is sprayed by the atomizing nozzle 2 to reduce the dust generated when the cutting head 1 cuts rocks;

[0037] Turn on the water-air nozzle 8 to spray and spray air, form a water curtain and an air curtain in front of the roadheader, and turn on the fan 6 and the tunnel fan at the same time, and the wind discharged from the tunnel ventilation pipe and the outlet of the fan 6 is blown to the tunnel face at the same time, and the dust collector 3 The first dust suction pipe 301 and the dust suction cover 304 suck the dust into the box of the dust collector 3 at the same time, filter the dust under the action of the filter element 4, and shake off the dust accumulated on the surface of the filter element 4 under the action of the pulse jet to the dust collector 3. At the b...

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Abstract

The invention discloses a heading machine onboard dust removal system and method, the dust removal system comprises a dust control device, a dust collection and removal device and a dust fall device, the dust control device comprises a first dust control device and a second dust control device; the dust collecting and removing device comprises a dust remover, a first dust suction pipe, a second dust suction pipe and a third dust suction pipe, wherein the first dust suction pipe, the second dust suction pipe and the third dust suction pipe are connected with an inlet of the dust remover. An outlet of the dust remover is connected with an inlet of the fan. The dust falling device comprises an atomizing nozzle installed on one side of the spraying rod. Dust generation is reduced through mist spraying, generated dust is concentrated on the tunnel face through an air curtain, a water curtain, airflow blown to the tunnel face and a dust control device formed through ventilation, rapid collection and purification are achieved through a dust suction device and a large-air-volume fan, and therefore clean air is exhausted.

Description

technical field [0001] The invention relates to an airborne dust removal system and method of a roadheader, belonging to the technical field of roadheader construction. Background technique [0002] Roadheaders are more and more widely used in highway / road tunnels, subways, mines and other fields due to their characteristics of flexible construction, small disturbance of surrounding rock, high section forming precision, fewer construction personnel, and low procurement costs. A large amount of dust is produced in the tunnel, which seriously pollutes the entire tunnel and endangers the health of construction workers. Usually roadheaders use spray dust reduction, combined with tunnel ventilation and dust discharge, which can improve the construction environment to a certain extent, but the effect is not ideal, and too much spray dust reduction also causes serious sludge near the tunnel face, affecting on-site construction. Some tunnels tried to use mobile dust removal equipme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F5/04E21F5/20B01D50/60
CPCE21F5/04E21F5/20E21F5/02E21F5/14E21D9/10
Inventor 李海强侯志强李晓配刘玉涛
Owner JIANGSU XCMG CONSTR MASCH RES INST LTD