CN210217823U - Dust removal device for opencast coal mine - Google Patents
Dust removal device for opencast coal mine Download PDFInfo
- Publication number
- CN210217823U CN210217823U CN201921071996.XU CN201921071996U CN210217823U CN 210217823 U CN210217823 U CN 210217823U CN 201921071996 U CN201921071996 U CN 201921071996U CN 210217823 U CN210217823 U CN 210217823U
- Authority
- CN
- China
- Prior art keywords
- box
- coal mine
- filter screen
- dust collector
- control valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model belongs to the technical field of coal mining, a dust collector for opencut coal mine is disclosed, sets up between burying underground the air pipe in the road, wherein, dust collector includes a box that roughly is the ellipsoid, the box has an entry and an export, is provided with the one-level filter screen in the box, and the exit is provided with the second grade filter screen, and wherein entry and export branch locate the long axle termination department of ellipsoid box, the slag discharge mouth has been seted up to the bottom half, and the slag discharge mouth is covered by the baffle. The utility model discloses can effectively clear up the buggy in the pipeline, and do not influence the normal work of pipeline.
Description
Technical Field
The utility model relates to a mine exploitation technical field especially relates to a dust collector for opencut coal mine.
Background
Coal mines are areas where people mine coal resources in coal-rich mining areas, and are generally divided into underground coal mines and open coal mines, in the coal mine industry, due to the fact that the mechanization degree of coal production is increased and the coal mining strength is continuously improved, a large amount of coal dust is generated in operations such as rock drilling, blasting, loading and unloading, crushing, transportation and the like, the working environment of the coal mines is severe, human health is harmed, the influence of dust disasters is gradually enlarged along with the increase of social demands on energy and industrial and mining products, and the method for reducing the concentration of the dust in the air is water sprinkling and dust reduction. Coal mine gas is also called coal bed gas, is hydrocarbon gas stored in a coal bed, has the main component of methane, is flammable and explosive gas, and has important threat to coal mine safety production. However, the gas is a high-quality clean energy and can be used as an energy source. Therefore, before coal mining, gas is pumped and discharged, the upper corner of a working face and return air flow gas are not over-limited, and safe production of a mine is realized. In the drainage pipeline of the mine, the pipeline pressure of the mine fluctuates due to the mixed accumulation of a plurality of coal dust and dust.
Therefore, how to design a device which can effectively clean the pulverized coal of the pipeline drainage system of the mine and does not influence the normal work of the pipeline becomes a technical problem to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dust collector for opencut coal mine can effectively clear up the buggy in the pipeline, and does not influence the normal work of pipeline.
In order to realize the above object, the utility model provides a dust collector for opencut coal mine sets up between burying underground the air pipe in the road, wherein, dust collector includes a box that roughly is the ellipsoid, the box has an entry and an export, and the entrance is provided with the one-level filter screen, and the exit is provided with the second grade filter screen, and wherein entry and export branch locate the long axle termination department of ellipsoid box, the slag notch has been seted up to the bottom half, and the slag notch is covered by the baffle.
Furthermore, the box body is also connected in parallel with a bypass pipeline, and two ends of the bypass pipeline are also communicated with the ventilation pipeline, wherein the bypass pipeline and the box body are positioned on the same horizontal plane.
Furthermore, the part of the ventilating pipeline connected with the inlet of the box body is in a horn shape, and the large opening of the horn shape faces to the position direction of the box body.
Further, be provided with first control valve on the air pipe in the entry the place ahead of box, be provided with the second control valve on the air pipe at the export rear of box, be provided with third control valve and fourth control valve on the bypass pipeline, and entrance and the exit of bypass pipeline are located to third control valve and fourth control valve branch.
Further, the inner diameter of the bypass duct is smaller than that of the ventilation duct.
Further, the bypass duct is arc-shaped.
Furthermore, the part of the ventilating pipeline connected with the outlet of the box body is also in a horn shape, and the large opening of the horn shape faces to the position direction of the box body.
Furthermore, the aperture of the secondary filter screen is smaller than that of the primary filter screen.
Furthermore, the primary filter screen and the secondary filter screen are arranged perpendicular to the ventilation direction of the ventilation pipeline.
Furthermore, part of the surface of the bottom of the box body is a tangent plane.
Furthermore, the primary filter screen is arc-surface-shaped.
Compared with the prior art, the utility model provides a dust collector for opencut coal mine has following beneficial effect:
the utility model provides a dust collector for opencut coal mine has following technological effect:
1. the box body of the dust removal device adopts the ellipsoid, coal slag and dust can naturally flow to the bottom of the box body, coal slag and dust are not easy to accumulate, the box body is easy to clean, and air exhaust is not influenced; the two-stage filter screen is designed in the box body, and large-particle matters such as coal slag and dust can be filtered.
2. The utility model discloses connect in parallel near the box and be provided with the bypass pipeline, and be provided with control flap, when the box blocks up, when clearing up the box, open the valve of bypass pipeline, still can follow the ventilation of bypass pipeline, do not influence the work of taking out and putting in the pit.
3. The ventilating duct at the inlet of the box body is in a horn shape, so that airflow can fully enter the box body conveniently and the contact area between the airflow and the filter screen is large; the ventilation pipe at the outlet of the box body is in a horn shape, so that the diameter of the outlet of the ventilation pipe is conveniently recovered after the airflow is filtered, and the pressure intensity is kept consistent.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
fig. 1 is a schematic structural view of a dust removing apparatus for an open pit coal mine according to an embodiment of the present invention;
fig. 2 is another schematic structural diagram of a dust removing apparatus for an open pit coal mine according to an embodiment of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail with reference to the accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1, the dust removing apparatus for a strip coal mine provided by this embodiment is disposed between ventilation ducts 3 of a duct drainage system, the ventilation ducts 3 are generally laid in a road ground and protected, the ventilation ducts 3 generally include a ventilation duct inlet and a ventilation duct outlet, the ventilation duct inlet is connected to the outlet of the duct drainage system in the mine, the dust removing apparatus is installed between the ventilation duct inlet and the ventilation duct outlet, arrows in the figure indicate the moving direction of air flow, the dust removing apparatus is generally exposed outside the road and is convenient to operate, the dust removing apparatus includes a box body 1 which is generally in an ellipsoid shape, the box body 1 has an inlet and an outlet, the inlet is provided with a primary filter screen 13, the outlet is provided with a secondary filter screen 14, wherein the inlet and the outlet of the box body 1 are respectively disposed at the end points of the major axis of the ellipsoid box body 1, that is, the long, the bottom of the box body 1 is provided with a slag discharge port which is covered by a baffle 15, one or two slag discharge ports can be arranged, when the number of the slag discharge ports is two, one of the slag discharge ports is positioned in front of the first-stage filter screen 13, and the other slag discharge port is positioned between the two filter screens. The air current gets into from box 1 entry, because be mingled with cinder and dust in the air current, through the two-stage filtration of filter screen, filters the cinder and the dust of big granule and gets off, drops in box 1 bottom, then opens through baffle 15 of box 1 bottom, clears up cinder and dust. Because the box 1 is the ellipsoid, it is difficult to hide dirty and hold dirt, and its smooth curved surface makes cinder dust extremely easily fall naturally moreover, is difficult to accumulate cinder and dust thing, compares the design of original cuboid or band edge corner, clears up more easily. Of course, for the convenience of placement, part of the surface of the bottom of the box body can be a tangent plane, as shown in fig. 2, so that the bottom of the box body can be placed on the ground more stably. Of course, if there is no section, the supporting frame can be set separately to support the box.
In this embodiment, the aperture of secondary filter 14 is less than the aperture of primary filter 13, and the aperture of primary filter 13 is great relatively, and it can block the cinder of great granule earlier at least, and secondary filter 14 further blocks other particulate matters that primary filter 13 did not block for the air current of export is cleaner. The primary filter screen 13 is arc-surface shaped, the secondary filter screen 14 is plane shaped, and the primary filter screen and the secondary filter screen are both perpendicular to the ventilation direction of the ventilation pipeline 3, and the air flow can collide with the filter screens when passing through, and the impurities mixed with the air flow are filtered. The primary filter screen 13 is designed to be arc-surface-shaped mainly for increasing the contact and filtering area with the air flow, and four surfaces of the primary filter screen 13 should be tightly attached and fixed with the inner wall surface of the ellipsoid box body 1. Wherein, can set up to first grade filter screen 13 and can filter the mine dust that the particle size is more than 10 microns at least, and second grade filter screen 14 can filter the mine dust that the particle size is 1 ~ 10 microns at least. According to different requirements, the aperture of the filter screen is adjusted, so that the filtering effect can be changed.
Because the width of the whole cross section of box 1 is greater than air pipe's pipeline internal diameter, before the air current got into box 1, has a certain amount of pressure, for the ease of the steady entering box 1 of air current filters, being connected the air pipe position of the 1 entry of box sets up to loudspeaker form, and the big opening of loudspeaker form is towards the position direction at box 1 place, and like this, the air current that the air current entry got into can not suddenly get into the filter screen in box 1 and carry out fierce striking, but has one section smooth transition process, in addition, because box 1 whole interface also is oval, make the gaseous flow more accord with the design of fluid. In addition, connect the air pipe position of box 1 export also is loudspeaker form, and the big opening of loudspeaker form is towards the position direction of box 1 place, is so in order to adapt to the pipeline internal diameter of air pipe export, is difficult to cause the air current to block up, and pressure keeps unanimous, prevents to cause the pressure fluctuation for the air current slowly enters into the air pipe export smoothly.
In order to detect the flow pressure of the air flow in the duct, a pressure gauge 4 may be provided at the outlet of the ventilation duct. When the pressure in the pipeline fluctuates, it is likely that a certain amount of coal slag or dust is accumulated in the box 1, at this time, the box 1 needs to be cleaned, and since the air flow contains toxic gas, when the worker opens the baffle 15 to clean, the worker must block the air flow passing through the box 1, but the normal output of the air flow cannot be affected, at this time, a bypass pipeline 2 is further connected in parallel to the box 1, and both ends of the bypass pipeline 2 are also communicated with the ventilation pipeline, specifically, the bypass pipeline 2 is connected with the inlet and the outlet of the ventilation pipeline 3, wherein the bypass pipeline 2 and the box 1 are located on the same horizontal plane, and the bypass pipeline 2 may be one or two, in this embodiment, the bypass pipeline 2 is arc-shaped, and approximately coincides with the elliptic curved surface of the box 1, so as to facilitate smooth circulation of the air flow, of course, the bypass pipeline may be set in other shapes, for example, the bypass line may be a straight line, or two bypass lines may be provided. In order to switch the ventilation paths of the box body 1 and the bypass pipeline 2, a first control valve 11 is arranged on the ventilation pipeline in front of the inlet of the box body 1, the first control valve 11 is used for controlling whether the airflow entering the inlet of the ventilation pipeline can enter the box body 1, a third control valve 21 and a fourth control valve 22 are arranged on the bypass pipeline 2, the third control valve 21 and the fourth control valve 22 only control whether the airflow entering the inlet of the ventilation pipeline can enter the bypass pipeline 2, a second control valve 12 is arranged on the ventilation pipeline behind the outlet of the box body 1, when the ventilation pipeline works normally, namely the airflow can be filtered through the box body 1 normally, the third control valve 21 and the fourth control valve 22 are in a closed state, the airflow does not pass through the bypass pipeline 2, and the first control valve 11 and the second control valve 12 are in an open (conducting) state; when the situation that the pressure gradually increases or pressure fluctuation occurs is detected, it is described that the box body 1 needs to be cleaned of coal slag, at this time, the first control valve 11 and the second control valve 12 can be manually controlled to be in a closed (locked) state, at this time, air flow cannot enter the box body 1 from two sides of the box body 1, at this time, the third control valve 21 and the fourth control valve 22 need to be rotated to be in an open (conducted) state, so that the air flow can only pass through the bypass pipeline 2 and then is discharged through an outlet of a ventilation pipeline; after the coal slag dust in the box body 1 is cleaned, the baffle 15 is tightly covered, the first control valve 12 and the second control valve 12 are opened, and the third control valve 22 and the fourth control valve 22 are closed; the two can work circularly under certain conditions, and even if one of them has a problem, the other can work independently, thus improving the underground pumping capacity.
In this embodiment, the inner diameter of the bypass duct 2 is smaller than the inner diameter of the ventilation duct 3. Because the two internal diameters differ, when the air current entered into bypass pipeline 2, 2 internal diameters of bypass pipeline diminish, and pressure intensity can increase for the velocity of flow of air current increases, and makes cinder and the dust that mix with in the air current can be quick pass through bypass pipeline 2, can not pile up in bypass pipeline 2, the difficult condition that the jam appears. Furthermore, both sides of the bypass duct 2 are preferably in communication with the ventilation duct 3 in a detachable manner, such as a threaded or snap-fit connection.
The utility model discloses can effectively clear up dust such as buggy that the mine entered into the road, and do not influence the normal transport work of pipeline, and improved the pumping and discharging ability in the pit.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a dust collector for opencut coal mine, sets up between burying underground the air pipe in the road, its characterized in that, dust collector includes a box that roughly is the ellipsoid, the box has an entry and an export, is provided with the one-level filter screen in the box, and the exit is provided with the second grade filter screen, and wherein entry and export branch locate the long axle termination department of ellipsoid body box, the row's of slag notch has been seted up to the bottom half, and the row's of slag notch is covered by the baffle.
2. The dust collector for a opencast coal mine of claim 1, wherein the box body is further connected in parallel with a bypass duct, both ends of the bypass duct are also connected to the ventilation duct, and wherein the bypass duct is located at the same level as the box body.
3. The dust collector for an open pit coal mine according to claim 1, wherein the portion of the ventilation duct connecting the inlet of the box body is flared, and the large opening of the flare is directed toward the position of the box body.
4. The dust collector for a opencast coal mine of claim 2, wherein a first control valve is provided on the ventilation duct in front of the inlet of the box, a second control valve is provided on the ventilation duct behind the outlet of the box, a third control valve and a fourth control valve are provided on the bypass duct, and the third control valve and the fourth control valve are provided at the inlet and the outlet of the bypass duct, respectively.
5. The dust extraction apparatus for a opencast coal mine of claim 2, wherein the bypass conduit has an inner diameter smaller than an inner diameter of the ventilation conduit.
6. The dust extraction apparatus for a opencast coal mine of claim 5, wherein the bypass duct is arcuate.
7. The dust collector for an open pit coal mine according to claim 3, wherein the portion of the ventilation duct connecting the outlet of the box body is also in the shape of a horn, and the large opening of the horn is directed toward the position of the box body.
8. The dust collector for an open pit coal mine according to claim 1, wherein the primary filter screen is arc-shaped, the secondary filter screen is planar, and the aperture of the secondary filter screen is smaller than that of the primary filter screen.
9. The dust collector for an open pit coal mine of claim 1, wherein a portion of the face of the bottom of the box is a cut face.
10. The dust collector for a opencast coal mine of claim 9, wherein the primary filter screen and the secondary filter screen are both disposed perpendicular to a ventilation direction of the ventilation duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921071996.XU CN210217823U (en) | 2019-07-09 | 2019-07-09 | Dust removal device for opencast coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921071996.XU CN210217823U (en) | 2019-07-09 | 2019-07-09 | Dust removal device for opencast coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210217823U true CN210217823U (en) | 2020-03-31 |
Family
ID=69936900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921071996.XU Active CN210217823U (en) | 2019-07-09 | 2019-07-09 | Dust removal device for opencast coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210217823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114832569A (en) * | 2022-05-16 | 2022-08-02 | 安徽理工大学 | Progressive reducing pressure-regulating dust removal device and use method thereof |
-
2019
- 2019-07-09 CN CN201921071996.XU patent/CN210217823U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114832569A (en) * | 2022-05-16 | 2022-08-02 | 安徽理工大学 | Progressive reducing pressure-regulating dust removal device and use method thereof |
| CN114832569B (en) * | 2022-05-16 | 2023-09-08 | 安徽理工大学 | Progressive variable-diameter pressure-regulating dust removal device and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210217823U (en) | Dust removal device for opencast coal mine | |
| CN103055640A (en) | Composite efficient cyclone and bag-type dust removal device and method | |
| CN103410461A (en) | Three-proof device in drilling process | |
| CN201652397U (en) | Dust-collecting coal conveying corridor system | |
| CN207194937U (en) | ventilation deslagging device | |
| CN204952524U (en) | Hot precipitator unloads grey system | |
| CN207102155U (en) | A kind of impulse bag type dust collector with cloth bag connector protective case | |
| CN210159368U (en) | Vehicle-mounted dry type explosion-proof dust remover for roadway | |
| CN203342246U (en) | Dry fire barrier for coal mine gas delivery pipeline | |
| CN109603399A (en) | A kind of whistle type rotary pulse bag filter | |
| CN206304458U (en) | A kind of coal mine air-shaft main fan ventilation gas dust filtering and purifying | |
| CN106237738A (en) | Ash silo filter and calcium carbide furnace gas system | |
| CN105201545A (en) | Filtering and fire inhibiting device for coal mine gas extraction pipeline | |
| CN209596836U (en) | A kind of whistle type rotary pulse bag filter | |
| CN112709562A (en) | Directional drilling blowout-prevention residue filtering system | |
| CN210543842U (en) | Bag collector with dust bag leak hunting function | |
| CN209302431U (en) | Whirlwind bag-type dust integrated apparatus | |
| CN208356366U (en) | A kind of acetate filter cartridge dust remover of packaged type | |
| CN206214952U (en) | A kind of malicious device of metal mine underworkings dedusting filter | |
| CN104514578B (en) | A kind of mining three anti-devices | |
| CN211989132U (en) | Scrap steel crushing and dust collecting system | |
| CN214836296U (en) | Directional drilling blowout-prevention residue filtering system | |
| CN219469985U (en) | Positive pressure gas dust remover arranges pressure purifier | |
| CN204528665U (en) | Filtering system ash material conveying device | |
| CN103657310B (en) | A kind of dust to different-grain diameter carries out the Wet-type high-efficient dust arrester of classification process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Dust removal device for open pit coal mine Effective date of registration: 20200911 Granted publication date: 20200331 Pledgee: Rural credit cooperative association of Dalat banner Pledgor: INNER MONGOLIA KINERGY BLASTING Co.,Ltd. Registration number: Y2020150000048 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220901 Granted publication date: 20200331 Pledgee: Rural credit cooperative association of Dalat banner Pledgor: INNER MONGOLIA KINERGY BLASTING CO.,LTD. Registration number: Y2020150000048 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Dust removal device for open pit coal mines Effective date of registration: 20220905 Granted publication date: 20200331 Pledgee: Rural credit cooperative association of Dalat banner Pledgor: INNER MONGOLIA KINERGY BLASTING CO.,LTD. Registration number: Y2022150000092 |