CN-122014326-A - Air-water combined secondary dust settling device for outlet of mining dust removal fan

CN122014326ACN 122014326 ACN122014326 ACN 122014326ACN-122014326-A

Abstract

The application relates to the technical field of dust fall equipment, and provides a gas-water combined secondary dust fall device for a dust removal fan outlet of a mine, which comprises a main pipe; the dust collecting device comprises a main pipe, a connecting pipe, a middle position pipe, a dust collecting net, an atomization spraying assembly, a water inlet assembly and a water inlet assembly, wherein the connecting pipe is arranged at the opening end of the main pipe, the middle position pipe is rotatably connected between the connecting pipe and the main pipe, the middle position pipe and the connecting pipe form a channel for dust-containing air flow to pass through, the dust collecting net is arranged in the middle position pipe so as to drive the dust collecting net to rotate through rotation of the middle position pipe, the atomization spraying assembly comprises an annular pipe and a plurality of atomization spray heads, the annular pipe is fixedly arranged at the inner side of the connecting pipe, the plurality of atomization spray heads are distributed in a circumferential array and are fixedly communicated and fixed on the annular pipe, the spraying direction of the atomization spray heads faces the dust collecting net, and the water inlet assembly comprises a water inlet pipe, and the water inlet pipe is fixedly arranged outside the connecting pipe and penetrates through the connecting pipe and is communicated with the annular pipe. The multiple functions of dust fall, online self-cleaning and the like are realized through the cooperative cooperation of the rotary dust catching, the composite ash removal and the sewage collecting assembly.

Inventors

LU CHENGFEI
HUO ZIYANG
WANG YALIN
MA TAO
DING ZONGYI
HUANG TAO

Assignees

国能神东煤炭集团有限责任公司
中国神华能源股份有限公司神东煤炭分公司

Dates

Publication Date: 20260512
Application Date: 20260227

Claims (10)

1. A gas-water joint secondary dust device for mining dust removal fan export, its characterized in that includes: The bottom of the main pipe is fixedly provided with a base; the connecting pipe is arranged at the opening end of the main pipe and is used for being communicated with the outlet of the mining dust removal fan; The middle position pipe is rotationally connected between the connecting pipe and the main pipe, the middle position pipe and the connecting pipe form a channel for dust-containing airflow to pass through; the dust catching net is arranged in the middle position pipe, so that the dust catching net is driven to rotate through the rotation of the middle position pipe and is used for physically intercepting dust; The atomization spraying assembly comprises an annular pipe and a plurality of atomization spray heads, the annular pipe is fixedly arranged on the inner side of the connecting pipe, the plurality of atomization spray heads are distributed in a circumferential array and are fixedly communicated with the annular pipe, and the spraying direction of the atomization spray heads faces the dust catching net; The water inlet assembly comprises a water inlet pipe, the water inlet pipe is fixedly arranged outside the connecting pipe, penetrates through the connecting pipe and is communicated with the annular pipe, and the water inlet assembly is used for conveying water provided by an external water pump to the atomizing nozzle.
2. The air-water combined secondary dust settling device for a mining dust removal fan outlet according to claim 1, wherein a first bearing is installed at one end of the main pipe facing the middle pipe, a second bearing is installed at one end of the connecting pipe facing the middle pipe, two ends of the middle pipe are respectively connected with the first bearing and the second bearing, and the middle pipe can rotate relative to the main pipe and the connecting pipe through the first bearing and the second bearing.
3. The air-water combined secondary dust settling device for a mining dust removal fan outlet of claim 1, further comprising: And the rotary driving mechanism is arranged on the base and connected with the middle position pipe and used for driving the middle position pipe to rotate.
4. A gas-water combined secondary dust settling device for a mining dust removal fan outlet according to claim 3, wherein, The rotary driving mechanism comprises a gear ring, a servo motor and a driving wheel; The gear ring is sleeved and fixed on the outer side of the middle pipe; the servo motor is fixedly arranged on the base; The driving wheel is fixedly arranged at the output shaft end of the servo motor and meshed with the gear ring; The outside of drive wheel with the ring gear is provided with the protection casing of being fixed in on the base.
5. The air-water combined secondary dust suppression device for a mining dust removal fan outlet according to any one of claims 1 to 4, further comprising a sewage diversion structure comprising an annular baffle and a diversion slope; The annular baffle is fixedly arranged in the connecting pipe and used for blocking sewage backflow; the diversion slope is integrally formed on the inner wall of the middle pipe and is used for diversion of sewage into the main pipe.
6. The air-water combined secondary dust settling device for a mining dust removal fan outlet of claim 5, further comprising a sewage collection and discharge structure, wherein the sewage collection and discharge structure comprises a groove, a drain pipe and a filter screen; The groove is arranged in the main pipe and is used for receiving sewage, and the lower end of the groove extends into the base; the drain pipe is fixedly arranged on one side of the base and is communicated with the groove; the filter screen set up in recess department for filter impurity.
7. The air-water combined secondary dust suppression device for a mining dust removal fan outlet according to any one of claims 1 to 4, further comprising a reverse airflow dust removal assembly comprising an air inlet pipe, an inner plate and a plurality of ducts; The air inlet pipe is fixedly arranged in the main pipe, and the upper end of the air inlet pipe penetrates through the main pipe and is used for communicating an external high-pressure air source; the inner plate is arranged in the main pipe and hollow, and one side of the inner plate, which faces the dust catching net, is provided with a plurality of exhaust holes; The plurality of conducting pipes are distributed in a circumferential array and fixedly connected between the air inlet pipe and the inner plate.
8. The air-water combined secondary dust settling device for a mining dust removal fan outlet of claim 7, wherein the inner plate is arranged in a ring shape.
9. The air-water combined secondary dust settling device for the outlet of the mining dust removal fan according to claim 7, further comprising an electromagnetic impact dust removal assembly, wherein the electromagnetic impact dust removal assembly comprises a guide sleeve, a movable rod, a top block, a spring and an electromagnet; the guide sleeve is fixedly arranged at the end part of the air inlet pipe and penetrates through the inner plate; the movable rod is slidably arranged in the guide sleeve, and is made of a magnet; The top block is fixedly arranged at one end of the movable rod, which faces the dust catching net; the spring is sleeved outside the movable rod, and two ends of the spring are fixedly connected with the top block and the guide sleeve respectively; the electromagnet is fixedly arranged in the guide sleeve and used for driving the top block to strike the dust catching net when being electrified.
10. The gas-water combined secondary dust settling device for the outlet of the mining dust removing fan according to claim 1, wherein the end part of the connecting pipe is integrally formed with a flange plate, and/or the dust catching net is detachably connected to the inner side of the middle pipe through screws.

Description

Air-water combined secondary dust settling device for outlet of mining dust removal fan Technical Field The application relates to the technical field of dust fall equipment, in particular to a gas-water combined secondary dust fall device for a dust removal fan outlet for mines. Background At present, although the existing dust removal fan for mines can primarily treat underground dust-containing air flow, the air flow discharged by the existing dust removal fan still contains a large amount of fine dust, secondary dust is easy to raise in a roadway, and the health and operation safety of miners are seriously threatened. To cope with this problem, a secondary dust-settling device is often added to the outlet of the dust-settling fan, wherein wet dust-settling by combining spraying with a fixed dust-catching net is common. However, the prior art has the obvious defects that the fixed dust catching net is extremely easy to be quickly stuck by wet dust in a high-concentration dust environment, so that the ventilation resistance is increased sharply, the dust removal efficiency is reduced rapidly, the ash removal maintenance is required to be stopped, and the continuous operation of a production line is seriously influenced. In addition, the traditional spraying dust fall mode is not used for effectively collecting and treating dust-containing sewage, and the dust-containing sewage flows or drips, so that the underground operation environment is deteriorated, and water resource waste is caused. Disclosure of Invention The application aims to at least solve the technical problems that in the related art, the existing secondary dust settling device is extremely easy to be wetted and quickly stuck in a high-concentration dust environment due to the fact that a dust catching net is fixed, so that ventilation resistance is rapidly increased, dust removal efficiency is rapidly attenuated, dust-containing sewage is not effectively collected and treated in a traditional spraying dust settling mode, and the underground operation environment is deteriorated. In order to solve the technical problems, the application is realized as follows: The application provides a gas-water combined secondary dust settling device for a mine dust removing fan outlet, which comprises a main pipe, a connecting pipe, a middle position pipe, a dust catching net, an atomizing spray assembly and a water inlet assembly, wherein a base is fixedly arranged at the bottom of the main pipe, the connecting pipe is arranged at the open end of the main pipe and is used for being communicated with the mine dust removing fan outlet, the middle position pipe is rotationally connected between the connecting pipe and the main pipe, the middle position pipe and the connecting pipe jointly form a channel for dust-containing air flow to pass through, the dust catching net is arranged in the middle position pipe and is used for driving the dust catching net to rotate through the rotation of the middle position pipe and is used for physically intercepting dust, the atomizing spray assembly comprises an annular pipe and a plurality of atomizing spray heads, the annular pipe is fixedly arranged at the inner side of the connecting pipe, the atomizing spray heads are distributed in a circumferential array and are communicated and fixed on the annular pipe, the spraying direction of the atomizing spray heads faces the dust catching net, and the water inlet assembly comprises a water inlet pipe fixedly arranged outside the connecting pipe and penetrates through the connecting pipe and is communicated with the annular pipe and is used for conveying water provided by an external water pump to the atomizing spray heads. The application provides a gas-water combined secondary dust settling device for a mining dust removal fan outlet, which realizes multiple functions of efficient interception, online self-cleaning and resource recycling through the cooperative cooperation of rotary dust catching, composite ash removal and a sewage collection assembly. Specifically, under the high-efficiency gas-water combined dust fall scene, after the dust-containing air flow enters the device, the high-atomization water curtain sprayed out by the atomization spraying assembly is pre-wetted and condensed, and then the metal dust catching net which rotates at a constant speed through the action of the middle pipe belt is impacted. The rotation of the dust catching net makes the contact of dust and water mist more uniform and sufficient, improves the condensation efficiency, and on the other hand, utilizes centrifugal force to throw large-particle muddy water away from the net surface, thereby delaying blockage from the source. The double effects of physical interception and wet agglomeration obviously improve the collection efficiency of fine dust. Under the scene of automatic ash removal and anti-blocking, the device integrates a set of compound ash removal system. First, the rotary dri