CN217897868U - Dust-reducing spraying device for coal mining - Google Patents

Abstract

The utility model provides a coal exploitation dust fall atomizer, this coal exploitation dust fall atomizer includes: the sliding assembly comprises a sliding rail and a sliding block arranged on the sliding rail, and the sliding block is provided with a water inlet channel; the spraying assembly comprises a spraying part and a water delivery pipe, the spraying part comprises a water storage box and a spray head arranged on the water storage box, the water storage box is fixedly connected with a sliding block, the water storage box is provided with a water storage cavity, one end of the water inlet channel is communicated with the water delivery pipe, the other end of the water inlet channel is communicated with the water storage cavity, and the spray head is communicated with the water storage cavity. Through the technical scheme that this application provided, can solve the problem that coal exploitation dust fall atomizer's among the correlation technique spray regime is little.

Description

Dust-reducing spraying device for coal mining

Technical Field

The utility model relates to a coal mine electromechanical device technical field particularly, relates to a coal mining dust fall atomizer.

Background

A large amount of dust can be generated in the coal mine production process, the dust not only pollutes the environment, but also causes safety accidents due to the fact that the sight of coal mine workers is blocked when the coal mine workers operate in the dust-dense environment, and on the other hand, the coal mine workers suck the coal dust and the rock dust for a long time and seriously harm the health of the workers, so various dust falling and dust reducing measures can be adopted in the coal mine exploitation process.

In the related art, a coal mining dust fall spraying device is provided, and the device comprises a spraying support pipe and a support pillar, wherein the support pillar is of a hollow structure, water flow is input into the spraying support pipe from the support pillar, and the water flow can be atomized and sprayed into air from high altitude.

However, the spraying range of the coal mining dust fall spraying device in the related art is relatively fixed, and the spray head can spray in an area without dust, which causes resource waste.

SUMMERY OF THE UTILITY MODEL

The utility model provides a coal exploitation dust fall atomizer to solve the little problem of coal exploitation dust fall atomizer's the spray regime among the correlation technique.

The utility model provides a coal exploitation dust fall atomizer, coal exploitation dust fall atomizer includes: the sliding assembly comprises a sliding rail and a sliding block arranged on the sliding rail, and the sliding block is provided with a water inlet channel; the spraying assembly comprises a spraying part and a water delivery pipe, the spraying part comprises a water storage box and a spray head arranged on the water storage box, the water storage box is fixedly connected with a sliding block, the water storage box is provided with a water storage cavity, one end of the water inlet channel is communicated with the water delivery pipe, the other end of the water inlet channel is communicated with the water storage cavity, and the spray head is communicated with the water storage cavity.

Further, the slide rail includes last slide rail and is located the lower slide rail of the below of last slide rail, and the slider slidable ground sets up between last slide rail and lower slide rail.

Further, coal exploitation dust fall atomizer still includes coupling assembling, and coupling assembling includes mounting panel and U type connecting piece, and the mounting panel is located the top of last slide rail and with last slide rail connection, the upper end of U type connecting piece extend to the top of last slide rail and be connected with the mounting panel, the lower extreme of U type connecting piece extend to the below of slide rail down and with slide rail connection down.

Further, coupling assembling still includes the spliced pole, and the upper end of spliced pole is connected with the lower surface of mounting panel, the lower extreme of spliced pole and the upper surface connection of last slide rail.

Further, the sliding assembly further comprises a supporting rod arranged between the upper sliding rail and the lower sliding rail, the upper end of the supporting rod is connected with the upper sliding rail in a supporting mode, and the lower end of the supporting rod is connected with the lower sliding rail in a supporting mode.

Further, the upper surface of lower slide rail is provided with accomodates the groove, and the extending direction of accomodating the groove is the same with the extending direction of lower slide rail, and the lower extreme of bracing piece stretches into the one end of accomodating the groove, and the lower extreme of bracing piece is provided with the pivot, pivot and the lateral wall rotatable coupling who accomodates the groove, and the length dimension who accomodates the groove is greater than or equal to the length dimension of bracing piece, and the upper end of bracing piece can with the lower surface looks butt of last slide rail.

Further, the lateral wall of keeping away from the slider of water storage box is the inclined plane, and the distance between inclined plane and the slider is in the direction from top to bottom crescent gradually, and the shower nozzle setting is on the inclined plane.

Furthermore, in the extending direction vertical to the water storage box, the longitudinal section of the water storage box is in a right-angled triangle structure; and/or a plurality of spray heads are arranged on the inclined plane at intervals.

Further, the raceway includes inlet tube, three-way pipe and two shunt tubes, and the three-way pipe includes first intercommunication mouth, second intercommunication mouth and third intercommunication mouth, and first intercommunication mouth is linked together with the inlet tube, and one of them shunt tubes is linked together with second intercommunication mouth, and another shunt tube is linked together with the third intercommunication mouth, and the slider has two inhalant canal, and two shunt tubes are linked together with two inhalant canal respectively.

Furthermore, the coal mining dust-settling spraying device comprises two sliding blocks and two spraying assemblies which are correspondingly arranged, and the two sliding blocks are arranged at intervals along the length direction of the sliding rail; the sliding block is provided with a pulley, the sliding rail is provided with a sliding groove, and the pulley extends into the sliding groove and is abutted against the inner wall of the sliding groove; the lateral wall of slide rail is provided with the fastening hole.

Use the technical scheme of the utility model, coal mining dust fall atomizer includes the slip subassembly and sprays the subassembly, slider setting in the slip subassembly is on the slide rail, slider and water storage box fixed connection, can make the water storage box slide under the drive of slider, and be provided with the shower nozzle on the water storage box, can be with the water in the water storage box through the shower nozzle blowout, because there is water inlet channel on the slider, water inlet channel's one end and raceway intercommunication, water inlet channel's the other end and the water storage chamber intercommunication in the water storage box, make rivers circulate to the water storage box under the effect of raceway, and spray by the shower nozzle, carry out the dust fall to the produced dust of coal mining and handle. Adopt above-mentioned structure, through at the slider, a slide rail, raceway and water storage box interact down, can make the water storage box slide under the drive of slider, realize that the shower nozzle removes, can spray the dust removal to different work areas, and under the effect of slider, can make and spray the subassembly and remove from there being the dust region, make and spray the piece and do not spray in there being the dust region, it sprays to have the dust region to spray the piece to remove, can resources are saved, and can increase the scope of spraying that sprays the subassembly, promote the dust fall effect.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the scope of the invention. In the drawings:

fig. 1 shows a schematic structural diagram of a coal mining dust fall spraying device provided by an embodiment of the present invention;

fig. 2 is a schematic structural diagram illustrating another view angle of the coal mining dust fall spraying device provided by the embodiment of the invention;

fig. 3 shows a cross-sectional view of a coal mining dust fall spraying device provided by an embodiment of the invention;

fig. 4 shows a cross-sectional view of a sliding assembly of a coal mining dust fall spray apparatus provided by an embodiment of the present invention;

fig. 5 shows a partial enlarged view of the storage groove of the lower slide rail of the coal mining dust fall spraying device provided by the embodiment of the utility model.

Wherein the figures include the following reference numerals:

10. a sliding assembly; 11. a slide rail; 111. an upper slide rail; 112. a lower slide rail; 1121. a receiving groove; 113. a chute; 114. a fastening hole; 12. a slider; 121. a water inlet channel; 122. a pulley; 13. a support bar; 131. a rotating shaft;

20. a spray assembly; 21. a spraying member; 211. a water storage box; 2111. a water storage cavity; 212. a spray head; 22. a water delivery pipe; 221. a water inlet pipe; 222. a three-way pipe; 2221. a first communication port; 2222. a second communication port; 2223. a third communication port; 223. a shunt tube;

30. a connection assembly; 31. mounting a plate; 32. a U-shaped connecting piece; 33. connecting columns.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 5, the embodiment of the utility model provides a coal mining dust fall atomizer, this coal mining dust fall atomizer includes sliding assembly 10 and sprays subassembly 20, sliding assembly 10 includes slide rail 11 and sets up slider 12 on slide rail 11, slider 12 has inhalant canal 121, spray subassembly 20 is including spraying 21 and raceway 22, spray 21 includes water storage box 211 and the shower nozzle 212 of setting on water storage box 211, water storage box 211 and slider 12 fixed connection, water storage box 211 has water storage chamber 2111, inhalant canal 121's one end is linked together with raceway 22, inhalant canal 121's the other end is linked together with water storage chamber 2111, shower nozzle 212 is linked together with water storage chamber 2111.

Use the coal exploitation dust fall atomizer that this embodiment provided, this coal exploitation dust fall atomizer includes sliding assembly 10 and spraying assembly 20, slider 12 in sliding assembly 10 sets up on slide rail 11, slider 12 and water storage box 211 fixed connection, can make water storage box 211 slide under slider 12's drive, and be provided with shower nozzle 212 on water storage box 211, can spout the water in the water storage box 211 through shower nozzle 212, because there is inlet channel 121 on the slider 12, inlet channel 121's one end and raceway 22 intercommunication, inlet channel 121's the other end and the water storage chamber 2111 intercommunication in the water storage box 211, make rivers circulate to water storage box 211 under raceway 22's effect, and spray by shower nozzle 212, carry out the dust fall to the produced dust of coal mining and handle. Adopt above-mentioned structure, through at slider 12, slide rail 11, raceway 22 and water storage box 211 interact down, can make water storage box 211 slide under slider 12's drive, realize that shower nozzle 212 removes, can spray the dust removal to different work areas, and under slider 12's effect, can make spray subassembly 20 remove to having the dust region from no dust region, make spray part 21 not spray at no dust region, spray part 21 removes to having the dust region to spray, can resources are saved, and can increase the scope of spraying that sprays subassembly 20, promote the dust fall effect.

As shown in fig. 1 to 5, the slide rail 11 includes an upper slide rail 111 and a lower slide rail 112 located below the upper slide rail 111, and the slider 12 is slidably disposed between the upper slide rail 111 and the lower slide rail 112. Through setting up slide rail 111 and lower slide rail 112 for slider 12 can slide between last slide rail 111 and lower slide rail 112, can guarantee that the slip subassembly 10 slip process that slider 12 and slide rail 11 constitute is stable, prevents that slider 12 from breaking away from slide rail 11.

As shown in fig. 1 and 2, the coal mining dust fall spraying device further includes a connection assembly 30, the connection assembly 30 includes a mounting plate 31 and a U-shaped connection member 32, the mounting plate 31 is located above the upper slide rail 111 and connected to the upper slide rail 111, an upper end of the U-shaped connection member 32 extends above the upper slide rail 111 and is connected to the mounting plate 31, and a lower end of the U-shaped connection member 32 extends below the lower slide rail 112 and is connected to the lower slide rail 112. Adopt above-mentioned structure, the lower extreme of U type connecting piece 32 is connected with lower slide rail 112's below, U type connecting piece 32's top is connected with mounting panel 31, mounting panel 31's lower extreme is connected with the top of last slide rail 111, make and go up slide rail 111 and lower slide rail 112 and connect, and can connect last slide rail 111 and lower slide rail 112 under mounting panel 31 and U type connecting piece 32's combined action, can guarantee connection structure stable again, avoid sliding structure unstability to lead to slider 12 can not drive spray assembly 20 and remove.

As shown in fig. 1 and 2, the connecting assembly 30 further includes a connecting column 33, an upper end of the connecting column 33 is connected to a lower surface of the mounting plate 31, and a lower end of the connecting column 33 is connected to an upper surface of the upper rail 111. Through being provided with spliced pole 33 at the lower extreme of mounting panel 31, utilize spliced pole 33 to be connected mounting panel 31 and last slide rail 111, can guarantee connection structure stable, can be convenient for again assemble coupling assembling 30.

As shown in fig. 5, the sliding assembly 10 further includes a supporting rod 13 disposed between the upper sliding rail 111 and the lower sliding rail 112, an upper end of the supporting rod 13 is in supporting connection with the upper sliding rail 111, and a lower end of the supporting rod 13 is in supporting connection with the lower sliding rail 112. Through set up bracing piece 13 between last slide rail 11 and lower slide rail 112, bracing piece 13 plays the supporting role for the interval of going up slide rail 111 and lower slide rail 112 is at reasonable within range, avoids increasing the sliding friction between slide rail 11 and slider 12 and leads to slider 12 to slide the difficulty.

As shown in fig. 5, a receiving groove 1121 is disposed on an upper surface of the lower slide rail 112, an extending direction of the receiving groove 1121 is the same as an extending direction of the lower slide rail 112, a lower end of the supporting rod 13 extends into one end of the receiving groove 1121, a rotating shaft 131 is disposed at a lower end of the supporting rod 13, the rotating shaft 131 is rotatably connected to a side wall of the receiving groove 1121, a length of the receiving groove 1121 is greater than or equal to a length of the supporting rod 13, and an upper end of the supporting rod 13 can abut against a lower surface of the upper slide rail 111. Adopt above-mentioned structure, accomodate the groove 1121 and set up on lower slide rail 112, bracing piece 13 is accomodating in the groove 1121 through the rotatable setting of pivot 131, make bracing piece 13 accomodate in accomodating the groove 1121, be convenient for operate bracing piece 13 after installing slide rail 11, make bracing piece 13 rotate to the holding position from accomodating the position, and then carry out spacingly to slide rail 11, make rotating-structure simple, and be convenient for assemble bracing piece 13, and then promote the reliability of slip subassembly 10.

As shown in fig. 3, the side wall of the water storage box 211 away from the slider 12 is an inclined surface, the distance between the inclined surface and the slider 12 gradually increases from top to bottom, and the spray head 212 is disposed on the inclined surface. Adopt the water storage box 211 of above-mentioned structure, set up the lateral wall of water storage box 211 into the inclined plane, can promote the effect of spraying 21, the increase sprays the scope to can carry out the dust fall to the dust in the air and handle.

As shown in fig. 3, the longitudinal section of the water storage box 211 is a right triangle structure in the direction perpendicular to the extending direction of the water storage box 211. Set up to right triangle structure through the longitudinal section with water storage box 211, can increase the water storage capacity of the water storage chamber 2111 in the water storage box 211, can utilize the inclined plane increase of water storage box 211 again to spray the scope, and then promote dust removal effect.

In this embodiment, a plurality of nozzles 212 are spaced on the inclined surface. Through set up a plurality of shower nozzles 212 on the inclined plane, utilize a plurality of shower nozzles 212 to spray the dust fall, avoid spraying the not enough dust removal effect that leads to of water yield.

As shown in fig. 2, the water pipe 22 includes a water inlet pipe 221, a three-way pipe 222 and two branch pipes 223, the three-way pipe 222 includes a first communicating opening 2221, a second communicating opening 2222 and a third communicating opening 2223, the first communicating opening 2221 is communicated with the water inlet pipe 221, one branch pipe 223 is communicated with the second communicating opening 2222, the other branch pipe 223 is communicated with the third communicating opening 2223, the slider 12 has two water inlet channels 121, and the two branch pipes 223 are respectively communicated with the two water inlet channels 121. Adopt above-mentioned structure, input water through inlet tube 221, flow into three-way pipe 222 through first intercommunication mouth 2221, three-way pipe 222 can shunt water, and then flow into two shunt tubes 223 respectively through second intercommunication mouth 2222 and third intercommunication mouth 2223, and two shunt tubes 223 are linked together with two inlet channel 121 on the slider 12 respectively, make hydroenergy enough supply water to spraying member 21 from the position of difference, it is sufficient to guarantee to spray member 21 water storage capacity, and then can guarantee the scattered water yield of shower nozzle 212, promote the dust removal effect.

As shown in fig. 1 and fig. 2, the coal mining dust fall spraying device includes two sliding blocks 12 and two spraying assemblies 20, which are correspondingly arranged, and the two sliding blocks 12 are arranged at intervals along the length direction of the sliding rail 11. Through setting up two sliders 12 and two spraying assembly 20, slider 12 can drive spraying assembly 20 and slide, because two sliders 12 set up along slide rail 11 interval, can increase spraying assembly 20's the scope of scattering, reach dust removal effect.

As shown in fig. 4, the sliding block 12 is provided with a pulley 122, the sliding rail 11 is provided with a sliding slot 113, and the pulley 122 extends into the sliding slot 113 and abuts against the inner wall of the sliding slot 113. By adopting the above structure, the sliding groove 113 is arranged on the sliding rail 11, and the pulley 122 is abutted against the sliding groove 113, so that the pulley 122 can slide along the sliding groove 113 conveniently, the sliding structure can be stable, and the pulley 122 can be prevented from being separated from the sliding rail 11.

As shown in fig. 2, the side wall of the slide rail 11 is provided with a fastening hole 114. Through setting up fastening hole 114, can be fixed the slide rail 11 is connected, be convenient for dismantle and the installation.

The device provided by the embodiment has the following beneficial effects:

(1) Under the interaction of the slider 12, the slide rail 11, the water delivery pipe 22 and the water storage box 211, the water storage box 211 can slide under the driving of the slider 12, so that the spray head 212 can move, different working areas can be sprayed and dedusted, and under the action of the slider 12, the spray assembly 20 can move from a dustless area to a dusty area, so that the spray member 21 does not spray in the dustless area, and the spray member 21 moves to the dusty area to spray, thereby saving resources, enlarging the spray range of the spray assembly 20 and improving the dustfall effect;

(2) The connecting column 33 is arranged at the lower end of the mounting plate 31, and the mounting plate 31 is connected with the upper sliding rail 111 through the connecting column 33, so that the stability of the connecting structure can be ensured, and the connecting assembly 30 can be assembled conveniently;

(3) The support rod 13 is rotatably disposed in the accommodating groove 1121 through the rotation shaft 131, which facilitates assembly and simplifies the rotating structure, thereby improving reliability of the sliding assembly 10.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the directional terms such as "front, back, upper, lower, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, and in the case of not making a contrary explanation, these directional terms do not indicate and imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore, should not be construed as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over 8230," "upper surface," "above," and the like may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a coal exploitation dust fall atomizer which characterized in that, coal exploitation dust fall atomizer includes:

the sliding assembly (10) comprises a sliding rail (11) and a sliding block (12) arranged on the sliding rail (11), wherein the sliding block (12) is provided with a water inlet channel (121);

spray assembly (20), including spraying piece (21) and raceway (22), it includes water storage box (211) and sets up to spray piece (21) shower nozzle (212) on water storage box (211), water storage box (211) with slider (12) fixed connection, water storage box (211) have water storage chamber (2111), the one end of inlet channel (121) with raceway (22) are linked together, the other end of inlet channel (121) with water storage chamber (2111) are linked together, shower nozzle (212) with water storage chamber (2111) are linked together.

2. The coal mining dust fall spraying device according to claim 1, characterized in that the slide rail (11) comprises an upper slide rail (111) and a lower slide rail (112) located below the upper slide rail (111), and the slide block (12) is slidably arranged between the upper slide rail (111) and the lower slide rail (112).

3. The coal mining dust fall spray apparatus according to claim 2, further comprising a connection assembly (30), wherein the connection assembly (30) comprises a mounting plate (31) and a U-shaped connection member (32), the mounting plate (31) is located above the upper slide rail (111) and connected to the upper slide rail (111), an upper end of the U-shaped connection member (32) extends to above the upper slide rail (111) and connected to the mounting plate (31), and a lower end of the U-shaped connection member (32) extends to below the lower slide rail (112) and connected to the lower slide rail (112).

4. A coal mining dust fall spray apparatus according to claim 3, wherein the connection assembly (30) further comprises a connection column (33), the upper end of the connection column (33) is connected with the lower surface of the mounting plate (31), and the lower end of the connection column (33) is connected with the upper surface of the upper slide rail (111).

5. The coal mining dust fall spraying device according to claim 2, characterized in that the sliding assembly (10) further comprises a support rod (13) arranged between the upper sliding rail (111) and the lower sliding rail (112), the upper end of the support rod (13) is in supporting connection with the upper sliding rail (111), and the lower end of the support rod (13) is in supporting connection with the lower sliding rail (112).

6. The coal mining dust fall spraying device according to claim 5, characterized in that a storage groove (1121) is formed in the upper surface of the lower sliding rail (112), the extending direction of the storage groove (1121) is the same as the extending direction of the lower sliding rail (112), the lower end of the supporting rod (13) extends into one end of the storage groove (1121), a rotating shaft (131) is arranged at the lower end of the supporting rod (13), the rotating shaft (131) is rotatably connected with the side wall of the storage groove (1121), the length of the storage groove (1121) is larger than or equal to that of the supporting rod (13), and the upper end of the supporting rod (13) can abut against the lower surface of the upper sliding rail (111).

7. The coal mining dust fall spraying device according to any one of claims 1 to 6, characterized in that the side wall of the water storage box (211) far away from the sliding block (12) is an inclined surface, the distance between the inclined surface and the sliding block (12) is gradually increased in the direction from top to bottom, and the spray head (212) is arranged on the inclined surface.

8. The coal mining dust fall spray apparatus of claim 7,

in the extending direction vertical to the water storage box (211), the longitudinal section of the water storage box (211) is in a right-angled triangle structure; and/or the presence of a gas in the atmosphere,

a plurality of spray heads (212) are arranged on the inclined plane at intervals.

9. The coal mining dust fall spraying device according to any one of claims 1 to 6, wherein the water conveying pipe (22) comprises a water inlet pipe (221), a three-way pipe (222) and two branch pipes (223), the three-way pipe (222) comprises a first communicating opening (2221), a second communicating opening (2222) and a third communicating opening (2223), the first communicating opening (2221) is communicated with the water inlet pipe (221), one branch pipe (223) is communicated with the second communicating opening (2222), the other branch pipe (223) is communicated with the third communicating opening (2223), the sliding block (12) is provided with two water inlet channels (121), and the two branch pipes (223) are respectively communicated with the two water inlet channels (121).

10. The coal mining dust fall spray apparatus of any one of claims 1 to 6,

the coal mining dust-settling spraying device comprises two sliding blocks (12) and two spraying assemblies (20) which are correspondingly arranged, and the two sliding blocks (12) are arranged at intervals along the length direction of the sliding rail (11);

the sliding block (12) is provided with a pulley (122), the sliding rail (11) is provided with a sliding groove (113), and the pulley (122) extends into the sliding groove (113) and is abutted against the inner wall of the sliding groove (113);

the side wall of the sliding rail (11) is provided with a fastening hole (114).

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