CN112324484B - Closed dust removal and dirty air recycling device for mine excavation roadway and using method - Google Patents
Closed dust removal and dirty air recycling device for mine excavation roadway and using method Download PDFInfo
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 93
- 238000004064 recycling Methods 0.000 title claims abstract description 30
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- 238000001914 filtration Methods 0.000 claims abstract description 103
- 238000000926 separation method Methods 0.000 claims abstract description 30
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
- E21F17/12—Dam doors
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/20—Drawing-off or depositing dust
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Abstract
The invention discloses a closed dust removal and dirty air recycling device for a mine excavation roadway and a using method. The device comprises a detachable separation system and a filtering system, wherein the separation system separates the working surface of the mine excavation roadway from the outside, and the filtering system is used for filtering dust in the mine excavation roadway. The closed dust removal and dirty air recycling device for the mine excavation roadway, disclosed by the invention, has the advantages that the working face of the mine excavation roadway is isolated from the external environment through the separation system, the dust is prevented from diffusing outwards to pollute the environment, then the dust on the working face in the mine excavation roadway is filtered through the filtering system, the dust on the working face is further reduced and removed, the problem of low dust removal efficiency of the conventional dust removal equipment is solved, the separation system can further prevent the dust from diffusing into the external environment, the dust only flows between the separation system and the mine excavation roadway, the secondary pollution to fresh air is prevented, and the air quality in the mine roadway is improved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of mine mining equipment, in particular to a closed dust removal and dirty air recycling device for a mine excavation roadway and a using method of the closed dust removal and dirty air recycling device.
[ background ] A method for producing a semiconductor device
In recent years, the underground roadway tunneling technology in China is greatly developed, the comprehensive mechanized rapid tunneling technology of the full-rock roadway with the large section is popularized and applied, and the tunneling efficiency of the full-rock roadway is effectively improved. But the comprehensive mechanical rapid tunneling technology of the tunnel improves the tunneling working benefit and simultaneously aggravates the coal mine dust dangerThe problem that free sio in the dust of the driving tunnel is caused by the fact that the tunnel comprehensive digging has larger dust production intensity and higher dust dispersion degree2The content is higher, thus causing greater harm to the health of human bodies. According to statistics, the dust mass concentration of the fully mechanized coal mining face for tunneling is approximately 1000mg/m3To 3000mg/m3In the meantime. And the proportion of the respiratory dust in the total dust is quite high, and the concentration of both the total dust and the respiratory dust seriously exceeds the national standard, so that the hidden danger of coal dust explosion is increased, and the number of patients with pneumoconiosis is increased. Therefore, the development of a scientific and effective mine dust removal system for solving the problem of dust pollution in roadway fully-mechanized excavation is imperative.
The dust removal technology widely adopted by coal mines at home and abroad at present mainly comprises coal seam water injection, spray dust removal, ventilation dust removal and the like. The coal seam water injection technology has complex equipment, large water consumption and engineering quantity, more difficult problems exist in a hole sealing process, a water injection method and water injection equipment, and the dust removal efficiency is low. The spray dust removal is performed by atomizing water into fine water droplets and spraying the water droplets into the air, so that the water droplets collide with floating dust, and dust particles are captured by the water and adhere to the water droplets to accelerate the sedimentation of the dust particles. The method has the characteristics of simple equipment, low manufacturing cost, less maintenance and small management workload. The ventilation and dust removal is an effective dust removal method for diluting and removing suspended dust at an operation point by utilizing air flow and preventing excessive accumulation of the suspended dust, the method has low dust removal efficiency, and secondary pollution is caused by mixing fresh air and incompletely treated dirty air. At present, various tunneling roadway ventilation and spray dust removal devices are developed at home and abroad, introduced fresh air and incompletely-treated dirty air are continuously mixed, although the concentration of dust in a tunneling roadway is reduced to a certain extent, suspended dust is not eradicated, the dust removal efficiency is low, and the air quality of the roadway is still poor.
[ summary of the invention ]
The invention provides a closed dust removal and dirty air recycling device for a mine excavation roadway, which solves the problems that the existing ventilation dust removal equipment is low in dust removal efficiency and can cause secondary pollution of fresh air.
In order to solve the above problems, the present invention provides the following technical solutions: a closed dust removal and dirty air recycling device for a mine excavation roadway comprises a detachable separation system and a filtering system, wherein the detachable separation system separates a working face of the mine excavation roadway from the outside, and the filtering system is used for filtering dust in the mine excavation roadway.
The filtering system comprises a ventilating device and a water filtering system, wherein the ventilating device is used for introducing airflow into a mine excavation roadway to drive dust to flow, and the water filtering system is used for filtering the dust carried in the airflow.
Divide the system including the main door and the vice door that seals of activity, and encircle respectively the main door that seals with the sealing member that the week side of vice door set up, the main door that seals with vice door that seals is respectively through the extrusion sealing member connects with the sealed top of tunnel inner wall in order to form and prevent that the dust from diffusing to external compartment, filtration system passes divide the system to locate in the compartment.
The main closing door and the auxiliary closing door respectively comprise a first bent pipeline, a third bent pipeline arranged on the first bent pipeline, a second bent pipeline connected with the first bent pipeline, and a fourth bent pipeline arranged on the second bent pipeline, and the third bent pipeline is connected with the fourth bent pipeline; and detachable closed door curtains are arranged on the third bending pipeline and the fourth bending pipeline.
The first bent pipeline comprises a first horizontal connecting part and a first vertical connecting part which is mutually perpendicular to the first horizontal connecting part, the second bent pipeline comprises a second horizontal connecting part and a second vertical connecting part which is mutually perpendicular to the second horizontal connecting part, the third bent pipeline comprises a third horizontal connecting part and a third vertical connecting part which is mutually perpendicular to the third horizontal connecting part, and the fourth bent pipeline comprises a fourth horizontal connecting part and a fourth vertical connecting part which is mutually perpendicular to the fourth horizontal connecting part;
the first horizontal connecting part and the second horizontal connecting part are sleeved, and horizontal driving devices which enable the first horizontal connecting part to horizontally move relative to the second horizontal connecting part are arranged on the first horizontal connecting part and the second horizontal connecting part; the first vertical connecting part and the third vertical connecting part are sleeved, a first vertical driving device which enables the third vertical connecting part to vertically move relative to the first vertical connecting part is arranged on the first vertical connecting part, the second vertical connecting part and the fourth vertical connecting part are sleeved, and a second vertical driving device which enables the fourth vertical connecting part to vertically move relative to the second vertical connecting part is arranged on the second vertical connecting part; the third horizontal connecting part and the fourth horizontal connecting part are sleeved;
the sealing member is including locating first horizontal connecting portion with the lower sealing member of the downside of second horizontal connecting portion, locating first vertical connecting portion with the first side sealing member of the side of third vertical connecting portion, locate the second vertical connecting portion with the second side sealing member of the side of fourth vertical connecting portion and locate third horizontal connecting portion with the last sealing member of side on the fourth horizontal connecting portion.
The water filtering system comprises a filtering tank arranged in the separating chamber and used for filtering dust, a water supply pipe for supplying water to the filtering tank, and a drain pipe for discharging sewage after dust filtering in the filtering tank to the outside;
the ventilation device comprises an air supply pipe for introducing air flow into a mine excavation roadway and an air inlet pipe connected with the filter tank to convey the air flow of dust to the filter tank, and the filter tank is also connected with a circulating pipe for discharging the air flow filtered by the filter tank into the air supply pipe.
The water filtering system further comprises a purifying tank which is arranged in the separating chamber and used for purifying air flow after dust filtration, a connecting pipeline is arranged between the filtering tank and the purifying tank to convey the air flow after the dust filtration of the filtering tank, the purifying tank is connected with the air supply pipe through the circulating pipe to convey the air flow purified by the purifying tank, the water supply pipe is connected with the purifying tank, and the purifying tank is connected with the water discharge pipe.
And the separation system is provided with a sprayer which is connected with the water supply pipe and sprays water mist to the direction of the working face of the mine excavation roadway.
The atomizer is equipped with a plurality ofly and sets up along anticlockwise slope, and is a plurality of the inclination of atomizer increases from top to bottom in proper order.
The invention also provides a use method of the closed dust removal and dirty air recycling device for the mine excavation roadway, which comprises the following steps:
s1, installing a closed dust removal and dirty air recycling device for a mine excavation roadway, wherein the closed dust removal and dirty air recycling device for the mine excavation roadway comprises a detachable separation system for separating the working face of the mine excavation roadway from the outside and a filtering system for filtering dust in the mine excavation roadway; the separation system comprises a movable main closing door, a movable auxiliary closing door and sealing pieces which are respectively arranged around the peripheral sides of the main closing door and the auxiliary closing door; the filtering system comprises a ventilating device for introducing airflow into the mine excavation roadway to drive dust to flow and a water filtering system for filtering the dust carried in the airflow;
s2, enabling the main closing door and the auxiliary closing door of the partition system to respectively extrude the sealing element in the vertical direction and/or the horizontal direction to seal with the inner wall of the mine excavation roadway to form a partition chamber for preventing dust from diffusing to the outside;
s3, when dust is generated on the working face of the mine excavation roadway, starting a ventilation device of the filtering system to blow fresh air flow into the mine excavation roadway to drive the dust to flow, then conveying the air flow carrying the dust to a filtering pool and/or a purifying pool of the water filtering system filled with water to filter the dust, and discharging the air flow which is filtered to remove the dust into an air supply pipe through a circulating pipe for recycling; when the water in the filtering tank is turbid, opening a water supply pipe to add clean water into the filtering tank, and simultaneously opening a drain pipe to drain the turbid water;
and S4, when the working face of the mine excavation roadway is excavated to a certain distance, stopping the operation of the closed dust removal and dirty air recycling device for the mine excavation roadway, then detaching and moving to a new working face away from the mine excavation roadway, and repeating the steps from S1 to S3 until the dust removal operation of the working face of the mine excavation roadway is finished.
Compared with the prior art, the invention has the following advantages:
1. according to the closed dust removal and dirty air recycling device for the mine excavation roadway, the mine excavation roadway is isolated from the external environment through the separation system, dust is prevented from diffusing outwards to pollute the environment, then the dust on the working face in the mine excavation roadway is filtered through the filtering system, the dust on the working face is reduced and removed, the problem that the dust removal efficiency of the existing dust removal equipment is low is solved, the separation system can further prevent the dust from diffusing into the external environment, the dust only flows between the separation system and the mine excavation roadway, secondary pollution to fresh air is prevented, and the air quality in the mine roadway is improved;
2. the invention relates to a closed dust removal and dirty air recycling device for a mine excavation roadway, which is characterized in that a main closed door and an auxiliary closed door of a separation system are used for extruding a sealing piece arranged on the main closed door and the auxiliary closed door to be connected with the inner wall of the mine excavation roadway in a propping manner to form a separation chamber, dust generated in the mine excavation roadway is conveyed into a filter tank of a water filter system in the separation chamber through a ventilation device to be settled so as to remove the dust in airflow, then most of the airflow which is subjected to dust removal through a filter tank is circulated into an air supply pipe of the ventilation device, the airflow which is subjected to dust removal through filtration can be recycled, and a small part of the airflow is discharged into the external environment, so that ventilation and dust removal can be realized, and secondary pollution of the dust in the airflow to fresh air is avoided; the air flow which is removed with the dust by the filter tank is further filtered and purified by the purification tank, so that the dust contained in the air flow is reduced, and then the air flow passing through the purification tank is conveyed into the air supply pipe for cyclic utilization, so that the using amount of fresh air flow is reduced, and the cost is saved; in addition, the sprayer arranged on the separation system can spray water mist to settle dust in a mine excavation roadway, and the content of the dust in the environment is effectively reduced.
3. The invention relates to a using method of a closed dust removal and dirty air recycling device for a mine excavation roadway, which comprises the steps of extruding a sealing piece through a main sealing door and an auxiliary sealing door, isolating the mine excavation roadway from the external environment to form a compartment, then introducing airflow into the mine excavation roadway by using a ventilation device to convey dust generated in the mine excavation roadway to a filter tank for sedimentation in a flowing manner so as to remove the dust, discharging water with the dust in the filter tank to the outside through a drain pipe, thus effectively removing the dust in the mine excavation roadway, reducing or reducing the harm of the dust to workers, and discharging the airflow which is filtered by the filter tank to remove the dust into an air supply pipe for recycling; and a purification tank is arranged behind the filter tank to further improve the dust filtering effect and reduce the dust content in the mine excavation roadway.
[ description of the drawings ]
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention. Wherein- > represents the flow direction of the air flow and → represents the flow direction of the water.
FIG. 2 is a schematic structural view of a primary closing door in accordance with an embodiment of the present invention.
Fig. 3 is a sectional view taken along section line a-a in fig. 2.
FIG. 4 is a cross-sectional view taken along section line A1-A1 in FIG. 3.
FIG. 5 is a cross-sectional view taken along section line A3-A3 in FIG. 3.
FIG. 6 is a cross-sectional view taken along section line A2-A2 in FIG. 3.
FIG. 7 is a cross-sectional view taken along section line B1-B1 in FIG. 2.
FIG. 8 is a cross-sectional view taken along section line B2-B2 in FIG. 2.
FIG. 9 is a cross-sectional view taken along section line B3-B3 in FIG. 2.
FIG. 10 is a cross-sectional view taken along section line B4-B4 in FIG. 2.
Fig. 11 is a schematic structural view of a secondary closing door according to an embodiment of the present invention.
FIG. 12 is a cross-sectional view taken along section line D2-D2 in FIG. 11.
Fig. 13 is a sectional view taken along section line C-C in fig. 11.
Fig. 14 is a sectional view taken along section line F-F in fig. 1.
Fig. 15 is a sectional view taken along section line E-E in fig. 1.
Fig. 16 is a sectional view taken along section line G-G in fig. 1.
[ detailed description ] A
The technical solutions of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
Example (b): referring to fig. 1 to 16, the present embodiment provides a closed dust removal and dirty air recycling device for a mine driving roadway, which includes a detachable separation system 6 for separating a working face of a mine driving roadway 7 from the outside, and a filtering system 5 for filtering dust in the mine driving roadway. According to the closed dust removal and dirty air recycling device for the mine excavation roadway, the working face of the mine excavation roadway is isolated from the external environment through the isolation system, dust is prevented from diffusing outwards to pollute the environment, then the dust on the working face in the mine excavation roadway is filtered through the filtering system, the dust on the working face is reduced and removed, the problem that the dust removal efficiency of existing dust removal equipment is low is solved, the isolation system can further prevent the dust from diffusing into the external environment, the dust only flows between the isolation system and the mine excavation roadway, and secondary pollution to fresh air is prevented.
Specifically, the filtering system 5 includes a ventilation device 51 for introducing an air flow into the mine excavation roadway to drive the dust to flow, and a water filtering system 52 for filtering the dust carried in the air flow. The filtering system firstly leads dust in the mine excavation roadway to flow through ventilation, and then leads flowing airflow with the dust into water of the filtering system to filter and remove the dust.
As shown in fig. 1, 2, 15 and 16, the partition system 6 includes a movable main closing door 1 and a movable auxiliary closing door 3, and a sealing member 4 respectively disposed around the peripheral sides of the main closing door 1 and the auxiliary closing door 3, the main closing door 1 and the auxiliary closing door 3 respectively abut against the inner wall of the roadway by pressing the sealing member 4 to form a partition chamber 2, and the filtering system 5 is disposed in the partition chamber 2 through the partition system 6. The main sealing door is arranged on one side close to a working face of a mine excavation roadway, the auxiliary sealing door is arranged on one side close to the external environment, the main sealing door and the auxiliary sealing door are used for forming a separation chamber, and the separation chamber 2 is used as a main space for dust filtration, so that dust can be effectively prevented from diffusing into the external environment. The sealing element has the sealing function, and prevents the airflow with dust from diffusing outwards from the gaps between the main sealing door and the auxiliary sealing door and the inner wall of the mine excavation roadway to pollute the external environment. The movable main closing door and the movable auxiliary closing door mean that all bent pipelines of the main closing door and the auxiliary closing door can be extended or contracted in the vertical and/or horizontal direction under the driving of the driving device, and further the integral extension and contraction of the main closing door and/or the auxiliary closing door are realized.
The main sealing door 1 and the auxiliary sealing door 3 respectively comprise a first bending pipeline 1-3, a third bending pipeline 1-1 arranged on the first bending pipeline 1-3, a second bending pipeline 1-4 connected with the first bending pipeline 1-3, a fourth bending pipeline 1-2 arranged on the second bending pipeline 1-4, wherein the third bending pipeline 1-1 is connected with the fourth bending pipeline 1-2, and sealing door curtains 1-34 arranged on the third bending pipeline 1-1 and the fourth bending pipeline 1-2. The first pipeline of buckling, the second pipeline of buckling, the third pipeline of buckling, the fourth pipeline of buckling all are the right angle pipeline that the cross section is the rectangle, form the door body frame of main door and vice door of closing respectively, and the door curtain that closes bonds in the top of main door and vice door of closing, and other trilateral main both sides limit and the bottom edge of door curtain main door and vice door of closing respectively are sealed contact mutually, form the door that has sealing effect, can prevent to have the air current of dust to pass from the door body.
The closed door curtains 1-34 are detachably arranged on the third bent pipelines 1-3 and the fourth bent pipelines 1-2. Specifically, in this embodiment, be equipped with magic subsides female face 1-23 on the door body frame of the main door that closes by four pipeline formation of buckling and vice door, locate promptly that the third buckles the third horizontal connection portion of pipeline and the fourth horizontal connection portion of the fourth pipeline of buckling on, be equipped with the magic subsides sub-face 1-22 that corresponds with the female face of magic subsides on the door curtain to make the door curtain of closing can detachable install on main door and vice door of closing. The bottom of the closed door curtain, which is in contact with the first horizontal connecting part and the second horizontal connecting part, is also provided with counterweights 1-21, so that the situation that the closed door curtain upwarps towards one side where the auxiliary closed door is located to cause poor sealing of the main closed door is avoided. The closed door curtain is provided with door seams 1-33, and in the embodiment, the door seams are arranged in the middle of the closed door curtain for people to pass through.
The first bent pipeline 1-3 comprises a first horizontal connecting portion 1-11 and a first vertical connecting portion 1-12 perpendicular to the first horizontal connecting portion 1-11, the second bent pipeline 1-4 comprises a second horizontal connecting portion 1-10 and a second vertical connecting portion 1-9 perpendicular to the second horizontal connecting portion 1-10, the third bent pipeline 1-1 comprises a third horizontal connecting portion 1-6 and a third vertical connecting portion 1-5 perpendicular to the third horizontal connecting portion 1-6, and the fourth bent pipeline 1-2 comprises a fourth horizontal connecting portion 1-7 and a fourth vertical connecting portion 1-8 perpendicular to the fourth horizontal connecting portion 1-7. The horizontal connecting parts and the vertical connecting parts of the bent pipelines are connected, and the vertical connecting parts are connected with the vertical connecting parts, so that the four bent pipelines can form a door body frame of a main closing door and an auxiliary closing door.
The first horizontal connecting parts 1-11 and the second horizontal connecting parts 1-10 are sleeved, namely the second horizontal connecting parts 1-10 are sleeved in the first horizontal connecting parts 1-11, the first horizontal connecting parts 1-11 and the second horizontal connecting parts 1-10 are provided with horizontal driving devices 1a which enable the first horizontal connecting parts 1-11 to horizontally move relative to the second horizontal connecting parts 1-10, the horizontal driving devices 1a comprise fixed blocks 1-35 which are fixedly connected with the first horizontal connecting parts, moving rods 1-36 of which one ends are connected with the fixed blocks, driving gears 1-38 which drive the moving rods 1-36 to horizontally move, tooth socket fixed blocks 1-41 which are arranged in the second horizontal connecting parts, and connecting rods 1-40 which drive the driving gears 1-38 to rotate, one end of the movable rod 1-36, which is close to the tooth groove fixing block 1-41, is provided with a tooth groove 1-37 matched with the driving gear, and a handle 1-39 is arranged on the connecting rod 1-40; the third horizontal connecting part 1-6 and the fourth horizontal connecting part 1-7 are sleeved, namely the third horizontal connecting part is sleeved in the fourth horizontal connecting part. The connecting rod is driven to rotate forward or reversely by swinging the handles 1 to 39 forward or reversely, so as to drive the driving gear coaxially connected with the connecting rod to rotate forward or reversely, the driving gear drives the moving rod to move towards the direction far away from or close to the second horizontal connecting part, the first horizontal connecting part fixedly connected with the tail end of the moving rod can horizontally move relative to the second horizontal connecting part, and the width of the main closing door or the auxiliary closing door can be extended and contracted in the horizontal direction, so that the width of the main closing door and the width of the auxiliary closing door can be adjusted according to the length and the width of a mine driving roadway to form a compartment.
The first vertical connecting portions 1-12 and the third vertical connecting portions 1-5 are in sleeve joint, that is, the third vertical connecting portions are sleeved in the first vertical connecting portions, the first vertical connecting portions 1-12 are provided with first vertical driving devices 1b which enable the third vertical connecting portions 1-5 to vertically move relative to the first vertical connecting portions 1-12, each first vertical driving device 1b comprises lifting fixing blocks 1-13 fixedly connected with the first vertical connecting portions 1-12, first lifting rods 1-14 with one ends fixedly connected with the lifting fixing blocks 1-13, first driving gears 1-19 which drive the first lifting rods 1-14 to lift, first lifting tooth sockets 1-15, and first vertical driving gear sockets 1-19 arranged in the first vertical connecting portions 1-12, The connecting rod 1-40 drives the first driving gear 1-19 to rotate, a first driven tooth socket 1-16 matched with the first driving gear 1-19 is arranged at the position, close to the first lifting tooth socket fixing block 1-15, of the first lifting rod 1-14, and a handle 1-39 is also arranged on the connecting rod 1-40; the connecting rods 1-40 are driven to rotate forwards or reversely by rotating the handle forwards or reversely, so that the first driving gears 1-19 coaxially connected with the connecting rods are driven to rotate forwards or reversely, the lifting rods are driven to ascend or descend by the first driving gears, and the third vertical connecting part fixedly connected with the lifting fixing block at the tail end of the first lifting rod can ascend or descend relative to the first vertical connecting part. And a bearing 1-43 is arranged between the connecting rod 1-40 and the first driving gear.
The second vertical connecting parts 1-9 and the fourth vertical connecting parts 1-8 are sleeved, namely the second vertical connecting parts are sleeved in the fourth vertical connecting parts, the second vertical connecting parts 1-9 are provided with second vertical driving devices 1c which enable the fourth vertical connecting parts 1-8 to move relative to the second vertical connecting parts 1-9, each second vertical driving device 1c comprises second fixed blocks 1-25 fixedly connected with the fourth vertical connecting parts, second lifting rods 1-26 with one ends fixedly connected with the second fixed blocks, second driving gears 1-31 which drive the second lifting rods 1-26 to lift, second lifting tooth socket fixed blocks 1-27 arranged in the second vertical connecting parts 1-9 and connecting rods 1-40 which drive the second driving gears 1-31 to rotate, a second driven tooth socket 1-28 matched with the second driving gear 1-31 is arranged at the position, close to the second lifting tooth socket fixing block 1-27, of the second lifting rod 1-26, and a handle 1-39 is also arranged on the connecting rod 1-40; the connecting rods are driven to rotate positively and reversely in a comprehensive and reverse mode through the forward or reverse rotating handle, and then a second driving gear connected with the connecting rods is driven to rotate positively or reversely, so that the second driving gear drives the second lifting rod to ascend or descend, and further the fourth vertical connecting part fixedly connected with the tail end of the second lifting rod can ascend or descend relative to the second vertical connecting part; in this way, the height of the main closing door or the auxiliary closing door is made to be telescopic in the vertical direction, namely the main closing door and the auxiliary closing door are telescopic doors with adjustable width and height, so that the height of the main closing door and the height of the auxiliary closing door can be adjusted according to the height of the mine excavation roadway to form a compartment. Be equipped with the gap that the air feed stream passes through between first fixed block and the vertical connecting portion of third, be equipped with the gap that the air feed passes through between second fixed block and the vertical connecting portion of fourth.
The third bent pipeline 1-1 is connected with the fourth bent pipeline 1-2. Specifically, the third horizontal connecting portion 1-6 is sleeved in the fourth horizontal connecting portion 1-7, a convex edge 1-56 which protrudes outwards is arranged in the third horizontal connecting portion 1-6, a concave groove 1-57 which is concave inwards and matched with the flange is arranged on the fourth horizontal connecting portion, and the convex edge and the concave groove are used for limiting the relative sliding track of the third horizontal connecting portion and the fourth horizontal connecting portion, so that the third horizontal connecting portion connected with the third vertical connecting portion and the fourth horizontal connecting portion connected with the fourth vertical connecting portion can move horizontally and stably relatively under the driving of the horizontal driving device.
In this embodiment, the driving device is a gear and cogging driving structure, but of course, the driving device may also be a hydraulic cylinder or a motor to drive the bending pipe to move in the horizontal direction or in the vertical direction.
As shown in fig. 15 and 16, the sealing member 4 includes a lower sealing member 4-4 provided on the lower side of the first horizontal connecting portion 1-11 and the second horizontal connecting portion 1-10 to be in contact with the mine heading, a first side sealing member 4-2 provided on the side of the first vertical connecting portion 1-12 and the third vertical connecting portion 1-5 to be in contact with the mine heading, a second side sealing member 4-1 provided on the side of the second vertical connecting portion 1-9 and the fourth vertical connecting portion 1-8 to be in contact with the mine heading, and an upper sealing member 4-3 provided on the upper side of the third horizontal connecting portion 1-6 and the fourth horizontal connecting portion 1-7. The length of the upper sealing element is equal to the width of the main sealing door or the auxiliary sealing door, the lengths of the first side sealing element and the second side sealing element are equal to 1.1-1.2 times of the height of the main sealing door or the height of the auxiliary sealing door, and the length of the lower sealing element is equal to 1.1-1.2 times of the width of the main sealing door or the width of the auxiliary sealing door, so that the four bent pipelines can still play a role in sealing gaps between the bent pipelines and the inner wall of a mine driving roadway after extending for a certain distance. In this embodiment, the seal is a sponge.
Specifically, as shown in fig. 2, the water filtering system 52 includes a filtering tank 2-5 disposed in the compartment 2 for filtering dust, a water supply pipe 2-7 for supplying water to the filtering tank 2-5, and a drainage pipe 2-18 for discharging sewage from the filtering tank 2-5 after filtering dust to the outside; the water supply pipe, the filter tank and the drain pipe form a complete water circulation system, and sewage can be discharged through the drain pipe after dust is removed by the filter tank. The water supply pipe is provided with a control valve 2-9 for controlling the water flow at the water outlet and a water inlet valve 2-11 for controlling the water flow flowing into the filtering tank, the filtering tank 2-4 is connected with the water discharge pipe through a branch water discharge pipe 2-6, and the branch water discharge pipe 2-6 is provided with a water discharge valve 2-12 for controlling the water discharge flow of the filtering tank.
The ventilating device 51 comprises an air supply pipe 2-1 penetrating through the auxiliary closing door 3 to introduce air flow into a mine excavation roadway, an air inlet pipe 2-8 penetrating through the main closing door 1 and connected with the filter tank 2-5 to convey air flow of dust to the filter tank 2-5, a circulating pipe 2-14 for discharging the air flow filtered by the filter tank 2-5 into the air supply pipe 2-1, and an exhaust pipe 2-19 for discharging the air flow filtered by the filter tank 2-5 to the outside. The circulating pipe 2-14 is internally provided with a one-way ventilation control valve 2-15, so that the air flow filtered by the filtering tank can only flow into the air supply pipe from the filtering tank or the purifying tank, and the air flow in the air supply pipe is prevented from reversely flowing into the circulating pipe. A complete air flow circulating system is formed by the air supply pipe, the air inlet pipe, the circulating pipe and the exhaust pipe, so that air flow drives dust in a mine tunneling roadway to enter the filtering tank through the air inlet pipe for dust filtering, after filtering is completed, part of air flows through the circulating pipe and is discharged into the air supply pipe to be converged with fresh air flow, and the air flow is led to a tunneling working face again for ventilation and dust removal, so that the cyclic utilization of the air flow is realized, part of air flow is discharged through the exhaust pipe, and the overlarge air pressure in the mine tunneling roadway is prevented. Through mutually supporting of separation system, ventilation unit and filtration system subsides the dust in the mine tunnelling tunnel and detach for dust content effectively reduces in the mine tunnelling tunnel, avoids causing the injury to the staff.
As an optimized technical solution of this embodiment, the water filtering system 52 further includes a purifying tank 2-4 disposed in the compartment 2 for purifying the air flow after filtering the dust, a connecting pipe 2-3 is disposed between the filtering tank 2-5 and the purifying tank 2-4 for conveying the air flow after filtering the dust by the filtering tank 2-5, the purifying tank 2-4 is connected to the air supply pipe 2-1 by the circulating pipe 2-14 for conveying the air flow purified by the purifying tank 2-4, so that the air flow purified by the purifying tank is returned to the air supply pipe for recycling, the water supply pipe 2-7 is connected to the purifying tank 2-4, the purifying tank 2-4 is connected to the water discharge pipe 2-18 by the branch water discharge pipe 2-2, so that the sewage in the purifying tank is discharged to the external ring by the branch water discharge pipe 2-2 being connected to the water discharge pipe 2-18 by the branch water discharge pipe 2-2 In the environment. Correspondingly, a control valve 2-20 for controlling the water delivery flow to the purification tank is arranged on the water supply pipe, and a purification drain valve 2-13 for controlling the drain flow of the purification tank is arranged on a pipeline of the purification tank communicated with the drain pipe.
As shown in the attached drawings 1 and 6, a plurality of sprayers 1-42 connected with the water supply pipes 2-7 for spraying water mist to the direction of the working face in the mine driving roadway are arranged on the separation system 6, the sprayers 1-42 are arranged in an anticlockwise inclined mode, and the inclination angles of the sprayers 1-42 and the door body of the main closing door in the vertical direction are sequentially increased from top to bottom. I.e. the inclination angle increases gradually from the upper first atomizer to the lowermost atomizer. The inclination angle of the rear sprayer is increased by a predetermined angle from the inclination angle of the front sprayer. In this embodiment, the predetermined angle is 10 °, certainly the predetermined angle can be adjusted according to the field environment, and can be set to be an angle suitable for spraying water mist, such as 12 °, 15 °, 20 °, 30 ° or even 60 °, so as to settle dust in the mine excavation roadway through the water mist sprayed by the sprayer, and then settle dust in water through the filtering system, thereby reducing dust in the working surface environment.
As shown in fig. 2 and 3, the first bent pipeline of the main closing door is provided with air inlets 1-20 communicated with the air supply pipe, the first vertical connecting portion and the third vertical connecting portion are respectively provided with air outlets 1-48, 1-49 and 1-50 communicated with the air inlets, the third bent pipeline of the main closing door is provided with baffles 1-47, and the first bent pipeline is provided with baffles 1-51 for blocking air in the first vertical connecting portion and the third vertical connecting portion from being discharged from the first horizontal connecting portion and the third horizontal connecting portion, so that air flow delivered by the air supply pipe is discharged from the three air outlets into the mine heading roadway for ventilation and dust removal. The fourth vertical connecting part is provided with a baffle plate 1-55 and an air outlet 1-54, the second vertical connecting part is provided with a baffle plate 1-52 and an air outlet 1-53, the air outlet 1-54 and the air outlet 1-52 are used for inputting airflow with dust to the air inlet pipe, and the baffle plate 1-55 and the baffle plate 1-52 are used for preventing the airflow with dust from being discharged outwards from the second horizontal connecting part and the fourth horizontal connecting part. And a water receiving port 1-24 communicated with a water supply pipe is arranged on the fourth vertical connecting part, a water outlet 1-46 communicated with the water receiving port 1-24 is arranged on the fourth bent pipeline of the main closed door, and the water outlet is communicated with the sprayer so that the water supply pipe can convey water to the sprayer to form water mist. And air supply channels 3-20 for allowing air supply pipes to pass through are arranged on the first bent pipelines 1-12 of the auxiliary closing door 3, and water supply channels 3-31 for allowing water supply pipes to pass through and water drainage channels 3-30 for allowing water drainage pipes to pass through are arranged on the second bent pipelines 1-4 of the auxiliary closing door 3.
The use method of the closed dust removal and dirty air recycling device for the mine excavation roadway comprises the following steps:
s1, installing a closed dust removal and dirty air recycling device for a mine excavation roadway, wherein the closed dust removal and dirty air recycling device for the mine excavation roadway comprises a separation system 6 which separates and detachably separates a working face of the mine excavation roadway from the outside and a filtering system 5 which is used for filtering dust in the mine excavation roadway;
the separation system 6 comprises a movable main closing door 1 and an auxiliary closing door 3, and sealing pieces 4 respectively arranged around the main closing door 1 and the auxiliary closing door 3, and the filtering system 5 comprises a ventilating device 51 for introducing airflow into a mine excavation roadway to drive dust to flow and a water filtering system 52 for filtering the dust carried in the airflow;
s2, enabling the main closing door 1 and the auxiliary closing door 3 of the partition system 6 to respectively extrude the sealing element 4 to be sealed with the inner wall of the mine excavation roadway in the vertical direction and/or the horizontal direction to form a compartment 2 for preventing dust from diffusing to the outside;
s3, when dust is generated on the working face of the mine excavation roadway, the ventilation device 51 of the filtering system 5 is started to blow fresh air flow into the mine excavation roadway to drive the dust to flow, then the air flow carrying the dust is conveyed to the filtering pool 2-4 and/or the purifying pool 2-5 which are/is provided with water of the water filtering system 52 to filter the dust, and the air flow which is filtered to remove the dust is discharged into an air supply pipe through a circulating pipe for recycling; when the water in the filtering tank is turbid, opening a water supply pipe to add clean water into the filtering tank, and simultaneously opening a water discharge pipe to discharge the turbid water;
and S4, when the working face of the mine excavation roadway is excavated to a certain distance, stopping the operation of the closed dust removal and dirty air recycling device for the mine excavation roadway, then detaching and moving to a new working face away from the mine excavation roadway, and repeating the steps from S1 to S3 until the dust removal operation of the working face of the mine excavation roadway is finished.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. Mine tunnelling is with sealing dust removal and dirty wind cyclic utilization device, its characterized in that: the device comprises a detachable separation system (6) for separating the working surface of a mine excavation roadway from the outside and a filtering system (5) for filtering dust in the mine excavation roadway;
the separation system (6) comprises a movable main closing door (1), an auxiliary closing door (3) and sealing pieces (4) which are arranged around the periphery of the main closing door (1) and the periphery of the auxiliary closing door (3) respectively, and the main closing door (1) and the auxiliary closing door (3) are in sealing abutting joint with the inner wall of a roadway by squeezing the sealing pieces (4) respectively to form a separation chamber (2) for preventing dust from being diffused to the outside;
the main sealing door (1) and the auxiliary sealing door (3) respectively comprise a first bending pipeline (1-3), a third bending pipeline (1-1) arranged on the first bending pipeline (1-3), a second bending pipeline (1-4) connected with the first bending pipeline (1-3), and a fourth bending pipeline (1-2) arranged on the second bending pipeline (1-4), the third bending pipeline (1-1) is connected with the fourth bending pipeline (1-2), and detachable sealing door curtains (1-34) are arranged on the third bending pipeline (1-3) and the fourth bending pipeline (1-2);
the first bent pipeline (1-3) comprises a first horizontal connecting part (1-11) and a first vertical connecting part (1-12) which is vertical to the first horizontal connecting part (1-11), the second bent pipeline (1-4) comprises a second horizontal connecting part (1-10) and a second vertical connecting part (1-9) which is vertical to the second horizontal connecting part (1-10), the third bent pipeline (1-1) comprises a third horizontal connecting part (1-6) and a third vertical connecting part (1-5) which is vertical to the third horizontal connecting part (1-6), the fourth bent pipeline (1-2) comprises a fourth horizontal connecting part (1-7) and a fourth vertical connecting part (1-8) which is perpendicular to the fourth horizontal connecting part (1-7);
the first horizontal connecting part (1-11) and the second horizontal connecting part (1-10) are sleeved, and a horizontal driving device (1a) which enables the first horizontal connecting part (1-11) to horizontally move relative to the second horizontal connecting part (1-10) is arranged on the first horizontal connecting part (1-11) and the second horizontal connecting part (1-10); the first vertical connecting portion (1-12) and the third vertical connecting portion (1-5) are sleeved, a first vertical driving device (1b) which enables the third vertical connecting portion (1-5) to vertically move relative to the first vertical connecting portion (1-12) is arranged on the first vertical connecting portion (1-12), the second vertical connecting portion (1-9) and the fourth vertical connecting portion (1-8) are sleeved, and a second vertical driving device (1c) which enables the fourth vertical connecting portion (1-8) to move relative to the second vertical connecting portion (1-9) is arranged on the second vertical connecting portion (1-9); the third horizontal connecting part (1-6) and the fourth horizontal connecting part (1-7) are sleeved;
the sealing element (4) comprises a lower sealing element (4-4) arranged on the lower side surface of the first horizontal connecting part (1-11) and the second horizontal connecting part (1-10), a first side sealing element (4-2) arranged on the side surface of the first vertical connecting part (1-12) and the third vertical connecting part (1-5), a second side sealing element (4-1) arranged on the side surface of the second vertical connecting part (1-9) and the fourth vertical connecting part (1-8), and an upper sealing element (4-3) arranged on the upper side surface of the third horizontal connecting part (1-6) and the fourth horizontal connecting part (1-7).
2. The mine excavation roadway is with sealing dust removal and dirty wind cyclic utilization device of claim 1, characterized in that: the filtering system (5) comprises a ventilating device (51) for introducing airflow into the mine excavation roadway to drive dust to flow and a water filtering system (52) for filtering the dust carried in the airflow.
3. The mine excavation roadway is with sealing dust removal and dirty wind cyclic utilization device of claim 2, characterized in that: the filtration system (5) is arranged in the compartment (2) through the partition system (6).
4. The mine excavation roadway is with sealing dust removal and dirty wind cyclic utilization device of claim 3, characterized in that: the water filtering system (52) comprises a filtering tank (2-5) which is arranged in the compartment (2) and used for filtering dust, a water supply pipe (2-7) for supplying water to the filtering tank (2-5), and a drain pipe (2-18) for discharging sewage in the filtering tank (2-5) after dust is filtered to the outside;
the ventilation device (51) comprises an air supply pipe (2-1) for introducing air flow into a mine excavation roadway and an air inlet pipe (2-8) connected with the filter tank (2-5) for conveying the air flow of the dust to the filter tank (2-5), and the filter tank (2-5) is also connected with a circulating pipe (2-14) for discharging the air flow filtered by the filter tank into the air supply pipe (2-1).
5. The mine excavation roadway is with sealing dust removal and dirty wind cyclic utilization device of claim 4, characterized in that: the water filtering system (52) further comprises a purifying tank (2-4) which is arranged in the separating chamber (2) and used for purifying air flow after dust filtration, a connecting pipeline (2-3) is arranged between the filtering tank (2-5) and the purifying tank (2-4) to convey the air flow after the dust filtration through the filtering tank (2-5), the purifying tank (2-4) is connected with the air supply pipe (2-1) through the circulating pipe (2-14) to convey the air flow purified through the purifying tank (2-4), the water supply pipe (2-7) is connected with the purifying tank (2-4), and the purifying tank (2-4) is connected with the water discharge pipe (2-18).
6. The mine excavation roadway is with sealing dust removal and dirty wind cyclic utilization device of claim 5, characterized in that: and the separation system (6) is provided with sprayers (1-42) which are connected with the water supply pipes (2-7) and used for spraying water mist to the direction of the working face of the mine excavation roadway.
7. The mine excavation roadway is with sealing dust removal and dirty wind cyclic utilization device of claim 6, characterized in that: the sprayers (1-42) are arranged in a plurality of inclined positions along the anticlockwise direction, and the inclination angles of the sprayers (1-42) are increased from top to bottom in sequence.
8. The use method of the closed dust removal and dirty air recycling device for the mine excavation roadway is characterized by comprising the following steps of:
s1, installing a closed dust removal and dirty air recycling device for a mine excavation roadway, wherein the closed dust removal and dirty air recycling device for the mine excavation roadway comprises a separation system (6) which separates and detachably separates a working face of the mine excavation roadway from the outside and a filtering system (5) which is used for filtering dust in the mine excavation roadway; the separation system (6) comprises a movable main closing door (1) and an auxiliary closing door (3) and sealing pieces (4) which are respectively arranged around the peripheral sides of the main closing door (1) and the auxiliary closing door (3); the filtering system (5) comprises a ventilating device (51) for introducing airflow into a mine excavation roadway to drive dust to flow and a water filtering system (52) for filtering the dust carried in the airflow;
s2, enabling the main closing door (1) and the auxiliary closing door (3) of the partition system (6) to respectively extrude the sealing element (4) to seal with the inner wall of the mine excavation roadway in the vertical direction and/or the horizontal direction to form a partition room (2) for preventing dust from diffusing to the outside;
s3, when dust is generated on the working face of the mine excavation roadway, starting a ventilation device (51) of the filtering system (5) to blow fresh air flow into the mine excavation roadway to drive the dust to flow, then conveying the air flow carrying the dust into a filtering pool (2-4) and/or a purifying pool (2-5) of the water filtering system (52) filled with water to filter the dust, and discharging the air flow which is filtered to remove the dust into an air supply pipe through a circulating pipe for recycling; when the water in the filtering tank is turbid, opening a water supply pipe to add clean water into the filtering tank, and simultaneously opening a drain pipe to drain the turbid water;
and S4, when the working face of the mine excavation roadway is excavated to a certain distance, stopping the operation of the closed dust removal and dirty air recycling device for the mine excavation roadway, disassembling and moving to a new working face away from the mine excavation roadway, and repeating the steps from S1 to S3 until the dust removal operation of the working face of the mine excavation roadway is finished.
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