Coal mine portable spraying dust removal device

Abstract

The present invention discloses a portable coal mine spraying dust removal device, which comprises a base, a slurry box for storing slurry is provided on the base; a mud delivery pump is connected to the slurry box, and the output end of the mud delivery pump is connected to a delivery hose, one end of the delivery hose is connected to a spraying head, a first support frame and a second support frame, the first support frame and the second support frame are both arranged in an arch shape, the first support frame is located outside the second support frame, and the two form a movable opening between them. This portable coal mine spraying dust removal device effectively blocks dust generated during spraying by providing a dust cover, an outer baffle and a transparent curtain plate between the first support frame and the second support frame, and effectively reduces the effect of dust flying in the underground coal mine tunnel, which not only effectively reduces dust but also ensures the working environment of the staff.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine grouting, in particular to a portable coal mine grouting dust removal device. Background Art

[0002] At present, the cement dust generated during the grouting of underground coal mine tunnels is mainly reduced by dust removal fans. The principle of this dust reduction method is simple. It mainly connects the spiral wind tube with the dust removal fan, hangs the spiral wind tube mouth on both sides facing the grouting area, and draws the cement dust generated by the negative pressure air generated by the dust removal fan into the purification chamber for dust removal.

[0003] At present, when spraying, existing coal mine underground tunnels all adopt manual handheld nozzle to spray cement underground. However, during the spraying process, on the one hand, due to the collision and reflection of the sprayed cement with the inner wall of the tunnel, on the other hand, due to the long range, more dust is generated during the spraying. Although the existing patent application number: CN202010852148.3 discloses: a portable spraying dust removal device for coal mine support, that is, a dust suction component is set on the outside of the spraying head to achieve the function of dust suction while spraying, however, in this device, since the dust suction component is close to the spraying head, on the one hand, the cement sprayed by the spraying head will be sucked into the dust suction component together with the dust suction component, increasing the rebound rate during cement spraying. At the same time, when the spraying head is far away from the injection point, the spraying range is long. At this time, the dust cannot be effectively reduced. For this reason, we propose a portable spraying dust removal device for coal mines. Summary of the Invention

[0004] The purpose of the present invention is to provide a portable coal mine spraying dust removal device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: A portable coal mine spraying dust removal device comprises a base, wherein the base is provided with a slurry box for storing slurry;

[0006] The slurry box is connected to a mud delivery pump, and the output end of the mud delivery pump is connected to a delivery hose, one end of the delivery hose is connected to a spray head, a first support frame and a second support frame, the first support frame and the second support frame are both arranged in an arch shape, the first support frame is located outside the second support frame, and a movable opening is formed between the two, and a plurality of positioning sleeves for positioning the delivery hose are slidably connected to the second support frame;

[0007] A surrounding spraying mechanism, wherein the delivery hose passes through the movable port, and the spraying head is located on the forward side of the first support frame, and the surrounding spraying mechanism enables the spraying head to surround the inside of the mine and automatically spray;

[0008] Dust covers, two of which are provided, the bottoms of the two dust covers being fixedly mounted on the two ends of the movable opening, and the two sides of the two dust covers being slidably connected to the first support frame and the second support frame, respectively, and the two dust covers being fixedly mounted on the outside of the conveying hose, the two dust covers moving synchronously with the conveying hose and closing the movable opening at the same time;

[0009] An outer baffle, which is fixedly mounted on the outside of the first support frame and close to the inside of the mine, to block bulletproof dust generated during shotcrete;

[0010] The transparent curtain plate is installed on the inner side of the second support frame and blocks and reduces the dust generated downward during spraying.

[0011] When in use, the slurry box is placed on the base, and the first support frame, the second support frame and the surrounding spraying mechanism are respectively provided on the base, so that the coal mine underground tunnel is automatically sprayed around. At the same time, after debugging, the distance between the spraying head and the coal mine underground tunnel is kept at an optimal distance, so as to avoid the phenomenon of too much dust caused by the cement spraying range of the spraying head being too far, and the phenomenon of too much cement rebound caused by the close distance between the spraying head and the coal mine underground tunnel, thereby further improving the efficiency of the coal mine underground tunnel spraying;

[0012] The dust cover, outer baffle and transparent curtain plate are provided between the first support frame and the second support frame, thereby effectively blocking the dust generated during the spraying, and effectively reducing the effect of dust flying in the underground tunnel of the coal mine, which not only effectively reduces dust but also ensures the working environment of the staff.

[0013] Preferably, the surrounding spraying mechanism includes

[0014] A movable sleeve, the movable sleeve is located on the forward side of the first support frame, a support ring for supporting the movable sleeve is installed on the base, and the support ring is installed on the base, a support plate is fixedly installed on the bottom of the movable sleeve, an opening is provided on the support plate, and a delivery hose passes through the opening, and the spray head is located at the top of the opening;

[0015] The surrounding piece is connected to the support plate, and the surrounding piece is connected to a surrounding rack, and the surrounding rack is installed at the moving port

[0016] An adjusting member, which is disposed on the support plate and is used to adjust the spraying angle of the spray head;

[0017] The scraper is slidably connected to the forward side of the outer baffle. A synchronization rod is connected to the scraper, and the synchronization rod is fixedly connected to the movable sleeve. When the movable sleeve moves around the support ring, it synchronously drives the scraper to scrape the dust on the outer baffle. Through the surrounding spraying mechanism, the spraying head surrounds the underground coal mine tunnel to spray cement.

[0018] Preferably, the surrounding member includes a driving motor fixedly mounted on the support plate, the output end of the driving motor is fixedly connected to a driving gear, and the driving gear is meshed with the surrounding rack, so that the support plate moves around the support ring through the surrounding member.

[0019] Preferably, the adjusting member comprises a fixing ring fixedly connected to the spray head, a rotating rod is fixedly connected to the outer side of the fixing ring, and the rotating rod is rotatably connected to the support plate through a bearing;

[0020] An adjusting ring, the adjusting ring is located above the fixed ring and is fixedly sleeved on the outside of the spray head. The outside of the adjusting ring is rotatably connected to a telescopic rod and an adjusting rod through a hinge support. The telescopic rod is rotatably connected to the support plate through a hinge support. The bottom of the adjusting rod is rotatably connected to a moving block through a hinge support.

[0021] The moving part is located on the support plate and is used to adjust the position of the moving block. Through the provided adjusting part, the spraying angle of the spraying head is adjusted.

[0022] Preferably, the moving member includes a moving screw rod passing through the moving block, and the moving block is rotatably connected to the moving screw rod, and both ends of the moving screw rod are rotatably connected to fixed blocks, and the fixed blocks are fixedly mounted on the support plate;

[0023] One end of the moving screw is fixedly connected to the first moving gear, and the outer side of the first moving gear is meshed with the second moving gear. A driving motor for driving the second moving gear is fixedly installed at the bottom of the support plate, and the moving block is moved relative to the support plate through the moving parts.

[0024] Preferably, a cleaning plate is provided on the inner side of the transparent curtain plate, and the cleaning plate is used to clean the dust on the inner side of the transparent curtain plate;

[0025] The cleaning plate is provided with a receiving cavity, and a spray mechanism is provided inside the receiving cavity. The transparent curtain plate is provided with a rotating motor for rotating the cleaning plate. The output end of the rotating motor is fixedly connected to a rotating shaft, and the rotating shaft passes through the transparent curtain plate and is fixedly connected to the cleaning plate. The rotating shaft is rotatably connected to the transparent curtain plate.

[0026] A dredging piece is provided on the side of the cleaning plate away from the transparent curtain plate, a material receiving shell is installed on the inner side of the transparent curtain plate, and a filter screen is provided on the material receiving shell, and the dredging piece is used to prevent the filter screen from being blocked;

[0027] The bottom of the material receiving shell is provided with a plurality of water holes at equal distances, through which a cleaning plate is provided, thereby preventing a lot of dust from adhering to the transparent curtain plate.

[0028] Preferably, the spray mechanism includes a switching shell fixedly installed inside the accommodating cavity, the switching shell is provided with two outflow holes on the top, the two outflow holes are connected to a spray pipe, a plurality of spray branches are provided on the spray pipe at equal distances, and the cleaning plate is provided with spray holes at positions corresponding to the plurality of spray branches;

[0029] A switching block is provided inside the switching housing, and the outer periphery of the switching block is made of rubber material. A switching member for switching the switching block is provided inside the switching housing;

[0030] A water inlet hole is provided inside the switching shell and between the bottoms of the two outflow holes. A water inlet hose is connected to the water inlet hole. The water inlet hose passes through the cleaning plate and the transparent curtain plate, and a water pump is connected to the bottom. The input end of the water pump is connected to a water tank, and the water tank is installed on the base. Through the spray mechanism provided, the transparent curtain plate can be cleaned.

[0031] Preferably, the switching member includes a switching screw rotatably connected to the inside of the switching shell, and a micro motor for driving the switching screw is installed on one side of the outside of the switching shell. The switching block is threadedly sleeved on the outside of the switching screw, and the switching member is provided to achieve the function of switching the two water inlet holes.

[0032] Preferably, the dredging member includes a rotating shaft fixedly connected to the outside of the cleaning plate, one end of the rotating shaft is fixedly connected to an eccentric wheel, the outside of the eccentric wheel is fixedly connected to a connecting frame, and the bottom of the connecting frame is fixedly connected to a plurality of dredging rods, and the plurality of dredging rods correspond to the through holes of the filter screen plate;

[0033] Guide rods are slidably passed through both sides of the connecting frame, and the two guide rods are fixedly installed inside the material receiving shell. A buffer spring is sleeved on the outer side of the guide rod, and the two ends of the buffer spring are respectively fixedly connected to the top of the connecting frame and the material receiving shell, and the clearing piece is provided to prevent the filter screen from being blocked.

[0034] The present invention has at least the following beneficial effects:

[0035] 1. When the present invention is in use, by placing the slurry box on the base, and at the same time, the first support frame, the second support frame and the surrounding spraying mechanism are respectively provided on the base, so as to perform surrounding automatic spraying on the underground coal mine roadway. At the same time, after debugging, the distance between the spraying head and the underground coal mine roadway is maintained at an optimal distance, thereby avoiding the phenomenon of excessive dust caused by the cement spraying range at the spraying head being too far, and avoiding the phenomenon of excessive cement rebound caused by the close distance between the spraying head and the underground coal mine roadway, thereby further improving the spraying efficiency of the underground coal mine roadway;

[0036] 2. The present invention effectively blocks the dust generated during spraying by providing a dust cover, an outer baffle and a transparent curtain plate between the first support frame and the second support frame, and effectively reduces the effect of dust flying in the underground coal mine tunnel, which not only effectively reduces dust but also ensures the working environment of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2 It is a side view of the overall structure of the present invention;

[0039] Figure 3 This is a schematic structural diagram of the first support frame and the second support frame of the present invention;

[0040] Figure 4 This is a schematic diagram of the structure of the dust cover of the present invention;

[0041] Figure 5 This is a schematic diagram of the structure of the surround rack of the present invention;

[0042] Figure 6 This is a schematic diagram of the structure of the surround spraying mechanism of the present invention;

[0043] Figure 7 This is a structural diagram of embodiment 2 of the present invention;

[0044] Figure 8 This is a schematic diagram of the material connection shell structure of the present invention;

[0045] Figure 9 This is a schematic diagram of the internal structure of the material receiving shell of the present invention;

[0046] Figure 10 This is a schematic diagram of the bottom structure of the material receiving shell of the present invention;

[0047] Figure 11 Schematic diagram of the internal structure of the cleaning plate of the present invention

[0048] Figure 12 This is a schematic diagram of the switching shell structure of the present invention.

[0049] In the figure: 1-base; 11-slurry box; 12-mud delivery pump; 13-delivery hose; 14-spraying head; 2-first support frame; 3-second support frame; 31-positioning sleeve; 4-surrounding spraying mechanism; 41-moving sleeve; 42-support ring; 43-support plate; 44-surrounding member; 441-driving motor; 442-driving gear; 45-surrounding rack; 46-adjusting member; 461-fixing ring; 462-rotating rod; 463-adjusting ring; 464-telescopic rod; 465-adjusting rod; 466-moving block; 467-rotating motor; 468-rotating rod; 469-rotating sleeve; 47-scraper; 471-synchronizing rod; 5-dust cover; 6-outer baffle; 7-transparent curtain plate; 71- Cleaning plate; 711-accommodating chamber; 712-spray hole; 72-rotating motor; 73-rotating shaft; 74-dredging piece; 741-rotating shaft; 742-eccentric wheel; 743-connecting frame; 744-dredging rod; 745-guide rod; 746-buffer spring; 75-material receiving shell; 751-water hole; 76-filter screen; 8-moving piece; 81-moving screw rod; 82-fixed block; 83-first moving gear; 84-second moving gear; 9-spraying mechanism; 91-switching shell; 911-outflow hole; 92-spraying pipe; 93-spraying branch pipe; 94-switching block; 95-switching piece; 951-switching screw rod; 952-micro motor; 96-water inlet hose; 97-water pump; 98-water tank. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0051] See also Figure 1-6 , 8-12

[0052] Example 1

[0053] The portable coal mine spraying dust removal device includes a base 1. The bottom of the base 1 is provided with a plurality of universal wheels to facilitate the movement of the base 1. At the same time, a handle is provided on one side of the base 1 to facilitate the staff to push the base 1 to move along the coal mine. The base 1 is provided with a slurry box 11 for storing slurry. The slurry inside the slurry box 11 can be added. At the same time, a stirring mechanism is provided inside the slurry box 11 to prevent the cement from coagulating.

[0054] The slurry box 11 is connected to a slurry delivery pump 12, and the output end of the slurry delivery pump 12 is connected to a delivery hose 13, one end of the delivery hose 13 is connected to a spray head 14, a first support frame 2 and a second support frame 3, the first support frame 2 and the second support frame 3 are both arranged in an arch shape, the first support frame 2 is located outside the second support frame 3, and a movable opening is formed between the two, and a plurality of positioning sleeves 31 for positioning the delivery hose 13 are slidably connected to the second support frame 3, and the plurality of positioning sleeves 31 are respectively fixedly sleeved on the outside of the delivery hose 13;

[0055] The surrounding shotcrete mechanism 4, the delivery hose 13 passes through the movable port, and the shotcrete head 14 is located on the forward side of the first support frame 2. The surrounding shotcrete mechanism 4 enables the shotcrete head 14 to automatically spray around the inside of the mine. The surrounding shotcrete mechanism 4 includes a movable sleeve 41, which is located on the forward side of the first support frame 2. A support ring 42 for supporting the movable sleeve 41 is installed on the base 1, and the support ring 42 is installed on the base 1. A support plate 43 is fixedly installed at the bottom of the movable sleeve 41, and an opening is provided on the support plate 43. The delivery hose 13 passes through the opening, and the shotcrete head 14 is located at the top of the opening;

[0056] The surrounding member 44 is connected to the support plate 43 and is connected to a surrounding rack 45, which is installed at the moving port. The surrounding member 44 includes a drive motor 441 fixedly mounted on the support plate 43, and the output end of the drive motor 441 is fixedly connected to a drive gear 442, which is meshed with the surrounding rack 45.

[0057] An adjusting member 46 is provided on the support plate 43 and is used to adjust the spraying angle of the spray head 14. The adjusting member 46 includes a fixing ring 461 fixedly connected to the spray head 14. A rotating rod 462 is fixedly connected to the outer side of the fixing ring 461, and the rotating rod 462 is rotatably connected to the support plate 43 through a bearing.

[0058] The adjusting ring 463 is located above the fixing ring 461 and is fixedly sleeved on the outside of the spray head 14. The outside of the adjusting ring 463 is rotatably connected to a telescopic rod 464 and an adjusting rod 465 via a hinge support. The telescopic rod 464 is rotatably connected to the support plate 43 via a hinge support. The bottom of the adjusting rod 465 is rotatably connected to a moving block 466 via a hinge support.

[0059] The movable member 8 is located on the support plate 43 and is used to adjust the position of the movable block 466. The movable member 8 includes a movable screw 81 that passes through the movable block 466, and the movable block 466 is rotatably connected to the movable screw 81. The movable block 466 is slidably connected to the support plate 43. The two ends of the movable screw 81 are respectively rotatably connected to fixed blocks 82, and the fixed block 82 is fixedly mounted on the support plate 43.

[0060] One end of the moving screw 81 is fixedly connected to a first moving gear 83, and the outer side of the first moving gear 83 is meshedly connected to a second moving gear 84. A driving motor 441 for driving the second moving gear 84 is fixedly mounted on the bottom of the support plate 43, and a protective cover is provided on the support plate 43 for protecting the first moving gear 83 and the second moving gear 84, thereby ensuring stable rotation of the moving screw 81.

[0061] Specific implementation process: When the coal mine tunnel is sprayed, the staff only needs to push the handrail of the base 1 to move the base 1 along the inside of the tunnel, and while moving, the mud delivery pump 12 is running, and further cement flows into the spraying head 14 through the slurry box 11 and the delivery hose 13, and the spraying head 14 vertically sprays the inner wall of the tunnel to be sprayed, and while the spraying head 14 is spraying, the driving motor 441 is running, and further the driving gear 442 is moved along the annular gear bar, and the support plate 43 is limited by the movable sleeve 41, and further drives the support plate 43 to move around the inner wall of the tunnel, and further the spraying head 14 performs surrounding spraying on the inner wall of the tunnel;

[0062] In the present application, since the lowest position height of the spray head 14 at the moving mouth is the height of the tunnel ground, when the spray head 14 moves to the bottom, the drive motor 441 is operated, and further drives the moving screw 81 to rotate relative to the support plate 43 through the first moving gear 83 and the second moving gear 84. When the moving screw 81 rotates, it provides driving force for the moving block 466. Due to the limitation of the support plate 43, the moving block 466 further moves along the support plate 43, so that the adjustment rod 465 moves and rotates relatively. At the same time, under the support of the telescopic rod 464, the spray head 14 is further sprayed downward, thereby realizing the effect of all-round spraying inside the tunnel.

[0063] The scraper 47 is slidably connected to the forward side of the outer baffle 6. A synchronization rod 471 is connected to the scraper 47, and the synchronization rod 471 is fixedly connected to the movable sleeve 41. When the movable sleeve 41 moves around the support ring 42, it synchronously drives the scraper 47 to scrape the dust on the outer baffle 6;

[0064] Dust covers 5, two dust covers 5 are provided, and the dust covers 5 are made of deformable rubber material, so that they can move synchronously with the delivery hose 13, while maintaining the sealing effect of the moving port to prevent dust from overflowing from the moving port. The bottoms of the two dust covers 5 are respectively fixedly mounted on the two ends of the moving port, and the two sides of the two dust covers 5 are respectively slidably connected to the first support frame 2 and the second support frame 3, and the two dust covers 5 are fixedly mounted on the outside of the delivery hose 13. The two dust covers 5 move synchronously with the delivery hose 13 and close the moving port at the same time;

[0065] The outer baffle 6 is fixedly mounted on the outside of the first support frame 2 and close to the inside of the mine to block the bulletproof dust generated during the spraying;

[0066] The transparent curtain plate 7 and the outer baffle plate 6 are both transparent plates, so that the staff can watch the spraying status of the spray head 14 in real time. At the same time, due to the setting of the scraper 47, the dust attached to the outer baffle plate 6 is scraped off. The transparent curtain plate 7 is installed on the inner side of the second support frame 3 and blocks and reduces the dust generated downward during spraying.

[0067] A cleaning plate 71 is provided on the inner side of the transparent curtain plate 7, and the cleaning plate 71 is used to clean the dust on the inner side of the transparent curtain plate 7;

[0068] The cleaning plate 71 is provided with a receiving cavity 711, and a spray mechanism 9 is provided inside the receiving cavity 711. The transparent curtain plate 7 is provided with a rotating motor 72 for rotating the cleaning plate 71. The output end of the rotating motor 72 is fixedly connected to a rotating shaft 73. The rotating shaft 73 passes through the transparent curtain plate 7 and is fixedly connected to the cleaning plate 71. The rotating shaft 73 is rotatably connected to the transparent curtain plate 7.

[0069] The spray mechanism 9 includes a switching housing 91 fixedly mounted inside the accommodating chamber 711. Two outflow holes 911 are provided on the top of the switching housing 91. The two outflow holes 911 are connected to a spray pipe 92. A plurality of spray branches 93 are provided on the spray pipe 92 at equal intervals. The cleaning plate 71 is provided with spray holes 712 at positions corresponding to the plurality of spray branches 93.

[0070] A switching block 94 is provided inside the switching housing 91, and the outer periphery of the switching block 94 is made of rubber material. The switching block 94 is connected to the inner wall of the switching housing 91 in a coordinated motion through the outer rubber. That is, when the switching block 94 moves to one of the outflow holes 911, the corresponding outflow hole 911 is kept closed. A switching member 95 for switching the switching block 94 is provided inside the switching housing 91. The switching member 95 includes a switching screw 951 rotatably connected to the inside of the switching housing 91. A micro motor 952 for driving the switching screw 951 is installed on one side of the outside of the switching housing 91. The switching block 94 is threadedly sleeved on the outside of the switching screw 951.

[0071] A water inlet hole is provided inside the switching housing 91 and between the bottoms of the two outflow holes 911. A water inlet hose 96 is connected to the water inlet hole. A limiting sleeve for limiting and guiding the water inlet hose 96 is provided on the second support frame 3. There are multiple limiting sleeves, which keep the water inlet hose 96 relatively fixed relative to the inner side of the second support frame 3. The water inlet hose 96 passes through the cleaning plate 71 and the transparent curtain plate 7, and is connected to a water pump 97 at the bottom. The input end of the water pump 97 is connected to a water tank 98, and the water tank 98 is mounted on the base 1.

[0072] A dredging member 74 is provided on the side of the cleaning plate 71 away from the transparent curtain plate 7. A material receiving shell 75 is installed on the inner side of the transparent curtain plate 7, and a filter screen plate 76 is provided on the material receiving shell 75. The dredging member 74 is used to prevent the filter screen plate 76 from being blocked. The dredging member 74 includes a rotating shaft 741 fixedly connected to the outer side of the cleaning plate 71, one end of the rotating shaft 741 is fixedly connected to an eccentric wheel 742, and a connecting frame 743 is fixedly connected to the outer side of the eccentric wheel 742, and a plurality of dredging rods 744 are fixedly connected to the bottom of the connecting frame 743, and the plurality of dredging rods 744 correspond to the through holes of the filter screen plate 76;

[0073] Guide rods 745 are slidably passed through the two sides of the connecting frame 743, and the two guide rods 745 are fixedly installed inside the receiving shell 75. Buffer springs 746 are sleeved on the outside of the guide rods 745, and the two ends of the buffer springs 746 are fixedly connected to the top of the connecting frame 743 and the receiving shell 75 respectively.

[0074] A plurality of water holes 751 are provided at equal intervals on the bottom of the receiving shell 75 .

[0075] Specific implementation process: while spraying, the rotary motor 72 rotates back and forth 90 degrees in the positive direction, and when the rotary motor 72 rotates, it drives the cleaning plate 71 to rotate along the surface of the transparent curtain plate 7, and when the cleaning plate 71 rotates, the water pump 97 runs, further allowing the water inlet hose 96 to introduce clean water into the switching shell 91, and the micro motor 952 at the switching shell 91 runs, thereby causing the switching screw rod 951 to rotate relative to the switching shell 91, and when the switching screw rod 951 rotates, it provides a driving force for the switching block 94, thereby causing the switching block 94 to move to one of the outflow holes 911, further closing one of the spray pipes 92, and at the same time opening the other spray pipe 92 in the direction of rotation of the cleaning plate 71, so that clean water flows out through the multiple spray branches 93 on the spray pipe 92, further allowing the cleaning plate 71 to rotate and scrape the dust on the surface of the transparent curtain plate 7 while the spray branch 93 sprays water, thereby accelerating the removal of dust;

[0076] The dust-containing water flows into the inside of the receiving shell 75, and as the cleaning plate 71 rotates, the eccentric wheel 742 is synchronously driven to rotate, and the eccentric wheel 742 drives multiple dredging rods 744 to move downward along the through holes of the filter plate 76 through the connecting frame 743, thereby dredging the filter plate 76 and collecting large particles of dust at the same time. The water flows out to the ground through the water hole 751, thereby playing the role of dust reduction for the scattered and falling dust.

[0077] See also Figure 7

[0078] Example 2

[0079] Different from the above-mentioned embodiment 1, the present application provides another implementation method for the adjusting member 46 in the above-mentioned embodiment: the adjusting member 46 is a rotating motor 467, and the output end of the rotating motor 467 is fixedly connected to a rotating rod 468, and one end of the rotating rod 468 is fixedly connected to a rotating sleeve 469, and the rotating sleeve 469 is fixedly sleeved on the outside of the spray head 14. During actual use, the operation of the rotating motor 467 can be controlled by the control button, so as to further adjust the spraying angle of the spray head 14.

[0080] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0081] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A portable coal mine spraying dust removal device, comprising a base (1), wherein a slurry box (11) for storing slurry is provided on the base (1); The slurry box (11) is connected to a slurry delivery pump (12), and the output end of the slurry delivery pump (12) is connected to a delivery hose (13), and one end of the delivery hose (13) is connected to a spray head (14), which is characterized in that: A first support frame (2) and a second support frame (3), wherein the first support frame (2) and the second support frame (3) are both arranged in an arch shape, the first support frame (2) is located outside the second support frame (3), and a movable opening is formed between the first support frame (2) and the second support frame (3), and a plurality of positioning sleeves (31) for positioning the delivery hose (13) are slidably connected to the second support frame (3); A surrounding spraying mechanism (4), wherein the delivery hose (13) passes through the movable port, and the spraying head (14) is located on the forward side of the first support frame (2), and the surrounding spraying mechanism (4) enables the spraying head (14) to surround the inner side of the mine and automatically spray; Dust covers (5), two dust covers (5) are provided, the bottoms of the two dust covers (5) are fixedly mounted on the two ends of the movable opening, and the two sides of the two dust covers (5) are slidably connected to the first support frame (2) and the second support frame (3), and the two dust covers (5) are fixedly mounted on the outside of the conveying hose (13), and the two dust covers (5) move synchronously with the conveying hose (13) and close the movable opening at the same time; An outer baffle (6), the outer baffle (6) being fixedly mounted on the outside of the first support frame (2) and close to the inside of the mine, for blocking bulletproof dust generated during grouting; A transparent curtain plate (7), which is installed inside the second support frame (3) and blocks and reduces dust generated downward during spraying; The surrounding spraying mechanism (4) includes A movable sleeve (41), the movable sleeve (41) is located on the forward side of the first support frame (2), a support ring (42) for supporting the movable sleeve (41) is installed on the base (1), and the support ring (42) is installed on the base (1), a support plate (43) is fixedly installed on the bottom of the movable sleeve (41), an opening is provided on the support plate (43), and a delivery hose (13) passes through the opening, and the spray head (14) is located at the top of the opening; A surrounding member (44), the surrounding member (44) is connected to the support plate (43), and a surrounding rack (45) is connected to the surrounding member (44), and the surrounding rack (45) is installed on the adjustment member (46) at the moving port, the adjustment member (46) is provided on the support plate (43), and is used to adjust the spraying angle of the spray head (14); A scraper (47) is slidably connected to the forward side of the outer baffle (6); a synchronization rod (471) is connected to the scraper (47), and the synchronization rod (471) is fixedly connected to the movable sleeve (41); when the movable sleeve (41) moves around the support ring (42), it synchronously drives the scraper (47) to scrape dust on the outer baffle (6).

2. The portable spraying dust removal device for coal mines according to claim 1, characterized in that: The surrounding member (44) includes a driving motor (441) fixedly mounted on the support plate (43); an output end of the driving motor (441) is fixedly connected to a driving gear (442), and the driving gear (442) is meshedly connected to the surrounding rack (45).

3. The portable spraying dust removal device for coal mines according to claim 1, characterized in that: The adjusting member (46) comprises a fixing ring (461) fixedly connected to the spray head (14); a rotating rod (462) is fixedly connected to the outer side of the fixing ring (461); and the rotating rod (462) is rotatably connected to the support plate (43) via a bearing; An adjusting ring (463), the adjusting ring (463) is located above the fixing ring (461), and the adjusting ring (463) is fixedly sleeved on the outside of the spray head (14); the outside of the adjusting ring (463) is rotatably connected to a telescopic rod (464) and an adjusting rod (465) via a hinge support, the telescopic rod (464) is rotatably connected to the support plate (43) via a hinge support, and the bottom of the adjusting rod (465) is rotatably connected to a moving block (466) via a hinge support; A moving member (8), the moving member (8) is located on the support plate (43) and is used to adjust the position of the moving block (466).

4. The portable spraying dust removal device for coal mines according to claim 3, characterized in that: The moving member (8) includes a moving screw rod (81) that passes through the moving block (466), and the moving block (466) is rotatably connected to the moving screw rod (81). Both ends of the moving screw rod (81) are rotatably connected to fixed blocks (82), and the fixed blocks (82) are fixedly mounted on the support plate (43). One end of the movable screw rod (81) is fixedly connected to a first movable gear (83), and the outer side of the first movable gear (83) is meshedly connected to a second movable gear (84), and a driving motor (441) for driving the second movable gear (84) is fixedly installed at the bottom of the support plate (43).

5. The portable spraying dust removal device for coal mines according to claim 1, characterized in that: A cleaning plate (71) is provided on the inner side of the transparent curtain plate (7), and the cleaning plate (71) is used to clean dust on the inner side of the transparent curtain plate (7); The cleaning plate (71) is provided with a receiving cavity (711), and a spray mechanism (9) is provided inside the receiving cavity (711). The transparent curtain plate (7) is provided with a rotating motor (72) for rotating the cleaning plate (71). The output end of the rotating motor (72) is fixedly connected to a rotating shaft (73), and the rotating shaft (73) passes through the transparent curtain plate (7) and is fixedly connected to the cleaning plate (71). The rotating shaft (73) is rotatably connected to the transparent curtain plate (7); A dredging member (74) is provided on the side of the cleaning plate (71) away from the transparent curtain plate (7), a material receiving shell (75) is installed on the inner side of the transparent curtain plate (7), and a filter screen (76) is provided on the material receiving shell (75), and the dredging member (74) is used to prevent the filter screen (76) from being blocked; The bottom of the material receiving shell (75) is provided with a plurality of water holes (751) at equal intervals.

6. The portable spraying dust removal device for coal mines according to claim 5, characterized in that: The spray mechanism (9) comprises a switching shell (91) fixedly mounted inside the accommodating cavity (711); two outflow holes (911) are provided on the top of the switching shell (91); a spray pipe (92) is connected to the two outflow holes (911); a plurality of spray branches (93) are provided on the spray pipe (92) at equal intervals; and spray holes (712) are respectively provided on the cleaning plate (71) at positions corresponding to the plurality of spray branches (93); A switching block (94) is provided inside the switching housing (91), and the outer periphery of the switching block (94) is made of rubber material. A switching member (95) for switching the switching block (94) is provided inside the switching housing (91); A water inlet hole is provided inside the switching housing (91) and between the bottoms of the two outflow holes (911). The water inlet hole is connected to a water inlet hose (96). The water inlet hose (96) passes through the cleaning plate (71) and the transparent curtain plate (7). The bottom of the water inlet hose (96) is connected to a water pump (97). The input end of the water pump (97) is connected to a water tank (98), and the water tank (98) is installed on the base (1).

7. The portable spraying dust removal device for coal mines according to claim 6, characterized in that: The switching member (95) includes a switching screw (951) rotatably connected to the interior of the switching housing (91); a micro motor (952) for driving the switching screw (951) is installed on one side of the exterior of the switching housing (91); and the switching block (94) is threadedly sleeved on the exterior of the switching screw (951).

8. The portable spraying dust removal device for coal mines according to claim 5, characterized in that: The dredging member (74) includes a rotating shaft (741) fixedly connected to the outside of the cleaning plate (71), one end of the rotating shaft (741) is fixedly connected to an eccentric wheel (742), the outside of the eccentric wheel (742) is fixedly connected to a connecting frame (743), and the bottom of the connecting frame (743) is fixedly connected to a plurality of dredging rods (744), and the plurality of dredging rods (744) correspond to the through holes of the filter screen plate (76); Guide rods (745) are slidably passed through both sides of the connecting frame (743), and the two guide rods (745) are fixedly installed inside the material receiving shell (75). Buffer springs (746) are sleeved on the outside of the guide rods (745), and the two ends of the buffer spring (746) are fixedly connected to the top of the connecting frame (743) and the material receiving shell (75) respectively.

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