A quantitative adding device for liquid dust suppressant

Abstract

The present invention belongs to the technical field of quantitative addition devices, and discloses a quantitative addition device for liquid dust suppressant, comprising a water supply pipe and an addition pipe, wherein the addition pipe is fixedly connected to the water supply pipe, and the addition pipe is connected to an external box body, a front baffle ring and a rear baffle ring are fixedly arranged inside the water supply pipe, an automatic addition mechanism is arranged between the front baffle ring and the rear baffle ring, and a sealing mechanism cooperating with the rear baffle ring is arranged on the outside of the rear baffle ring; wherein the automatic addition mechanism comprises a cylinder, a telescopic spring, a fixing frame and a push rod, wherein the cylinder and the telescopic spring are both movably arranged in the water supply pipe, the telescopic spring is located between the cylinder and the rear baffle ring, the fixing frame is fixedly arranged on the cylinder, the push rod is fixedly arranged on the fixing frame, and the push rod is used in conjunction with the sealing mechanism; the present invention, through the cooperation of the provided cylinder, telescopic spring, sealing mechanism, etc., can control the addition amount of liquid dust suppressant per unit time according to the flow rate of the water supply pipe when water is supplied by the water supply pipe.

Description

Technical Field

[0001] The invention belongs to the technical field of quantitative addition devices, and in particular relates to a quantitative addition device for a liquid dust suppressant. Background Art

[0002] In some dusty places, such as construction sites or mines, a large amount of dust is often generated during production operations. At this time, it is necessary to reduce the dust by spraying water. In order to further improve the dust reduction effect, liquid dust suppressants need to be added to the water spraying pipes.

[0003] In the process of adding existing liquid dust suppressants, some are added into the water supply pipe manually, which is relatively cumbersome to operate. Some are added into the water supply pipe by pumping. However, when the flow rate in the water supply pipe changes, the pumped liquid dust suppressant is still being added, resulting in a large difference in the ratio of the two, which reduces the effectiveness of the liquid dust suppressant. Therefore, it is necessary to provide a device that can control the addition of liquid dust suppressant according to the flow rate of water. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a device for quantitatively adding a liquid dust suppressant, which effectively solves the problems raised by the background art.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a device for quantitatively adding a liquid dust suppressant, comprising a water supply pipe and an adding pipe, the adding pipe being fixedly connected to the water supply pipe, and the adding pipe being connected to an external box body, a front baffle ring and a rear baffle ring being fixedly provided inside the water supply pipe, an automatic adding mechanism being provided between the front baffle ring and the rear baffle ring, and a sealing mechanism cooperating with the rear baffle ring being provided on the outside of the rear baffle ring; wherein the automatic adding mechanism comprises a cylinder, a telescopic spring, a fixing frame and a push rod, wherein the cylinder and the telescopic spring are both movably arranged in the water supply pipe, the telescopic spring is located between the cylinder and the rear baffle ring, the fixing frame is fixedly provided on the cylinder, the push rod is fixedly provided on the fixing frame, and the push rod is used in conjunction with the sealing mechanism.

[0006] Preferably, the sealing mechanism includes a positioning frame, a rod body, a support spring, a sealing plug and a limit plate, wherein the positioning frame is fixedly arranged in the water supply pipe, the rear retaining ring is located between the telescopic spring and the positioning frame, the rod body is slidably arranged in the rod hole on the positioning frame, the support spring is wrapped around the rod body, the sealing plug and the limit plate are respectively fixedly arranged at both ends of the rod body, and the sealing plug is used in conjunction with the rear retaining ring for sealing.

[0007] Preferably, the radius of the end of the sealing plug close to the positioning frame is larger than the radius of the middle portion of the sealing plug, and the radius of the middle portion of the sealing plug is larger than the radius of the end of the sealing plug away from the positioning frame.

[0008] Preferably, multiple groups of grooves are provided on the cylinder, and each group of grooves includes two sealing grooves, a rod groove, and a connecting groove, wherein the two sealing grooves are distributed at both ends of the cylinder, the two sealing grooves are connected through the connecting groove, and the rod groove is connected to one of the sealing grooves; wherein a sealing ring is provided in the sealing groove, and an annular mounting groove is formed on the outer side of the sealing ring, and a deformable cleaning ring is fixedly provided in the mounting groove.

[0009] Preferably, the interior of the sealing ring is connected to an integral diaphragm, and a sealing cavity and a cleaning cavity are formed inside the sealing ring through the diaphragm. The interior of the sealing cavity and the interior of the cleaning cavity are both filled with liquid. The cleaning cavity is located on the inner side of the deformable cleaning ring and is arranged corresponding to it. The interior of the sealing cavity is fixedly provided with a plurality of integral flexible sleeves along its circumference, a plurality of connecting rods are fixedly provided on the diaphragm, and a water retaining frame is provided on the outside of the cylinder. The connecting rods pass through the flexible sleeves and the rod holes on the cylinder in sequence and are fixed to the water retaining frame, and a reset spring is surrounded by the connecting rod, and the reset spring is located between the water retaining frame and the cylinder.

[0010] Preferably, the wall thickness above the sealing cavity is thinner than the wall thickness of the other side walls, and the wall thickness above the cleaning cavity is thinner than the wall thickness of the other side walls.

[0011] Preferably, the water retaining frame is provided with a stirring member, which includes a rotating shaft and a plurality of blades, wherein the rotating shaft is rotatably arranged at the center of the water retaining frame, and the plurality of blades are fixedly arranged along the circumference of the rotating shaft.

[0012] Preferably, an upper retaining ring and a lower mounting frame are fixedly provided inside the adding pipe, the upper retaining ring is located above the lower mounting frame, and a sealing and cleaning mechanism is provided on the lower mounting frame.

[0013] Preferably, the sealing and cleaning mechanism includes a middle rod, a middle spring, an upper sealing block, a strip block and a lower cleaning ring, wherein the middle rod is slidably arranged in the rod hole on the lower mounting frame, the middle spring is wrapped around the middle rod, the upper sealing block is fixedly arranged at the top end of the middle rod and seals with the upper retaining ring, the strip block is fixedly arranged at the bottom end of the middle rod, the lower cleaning ring is fixedly arranged on the strip block, and the middle spring is located between the upper sealing block and the lower cleaning ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. During operation, the coordination of the cylinder, telescopic spring, sealing mechanism, etc. can control the amount of liquid dust suppressant added per unit time according to the flow rate of the water supply pipe when water is supplied by the water supply pipe. When the water supply pipe stops supplying water, the cylinder can stop adding liquid dust suppressant. In addition, during the movement of the cylinder, the scale on the inner wall of the water supply pipe can be cleaned to ensure the smoothness of the movement of the cylinder.

[0016] 2. During operation, through the cooperation of the provided water retaining frame, sealing ring, cleaning cavity and sealing cavity, when water flows, the deformable cleaning ring can be attached to the inner wall of the water supply pipe, while the sealing part is away from the inner wall of the water supply pipe. The deformable cleaning ring improves the cleaning effect of scale, and at the same time, the sealing part of the sealing ring no longer contacts the inner wall of the water supply pipe, thereby reducing wear; and when the water does not flow, the deformation of the cleaning cavity drives the deformable cleaning ring away from the inner wall of the water supply pipe, and the upper surface of the sealing cavity is tightly attached to the inner wall of the water supply pipe after deformation, thereby achieving a good sealing effect;

[0017] 3. During operation, the cylinder, sealing ring and upper sealing block are used in conjunction to form a multi-layer seal between the addition pipe and the water supply pipe to improve the sealing performance and prevent the liquid dust suppressant in the addition pipe from entering the water supply pipe when not needed;

[0018] 4. During operation, the lower cleaning ring can be used to clean the dirt in the addition pipe to prevent dirt accumulation from affecting the addition of liquid dust suppressant. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0020] In the attached figure:

[0021] Figure 1 This is a schematic diagram of the external structure of a liquid dust suppressant quantitative addition device of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of a liquid dust suppressant quantitative addition device of the present invention;

[0023] Figure 3 This is a schematic diagram of the automatic adding mechanism structure of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the sealing mechanism of the present invention;

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure of the cylinder of the present invention;

[0026] Figure 6 For the present invention Figure 5 A in the middle is an enlarged structural diagram;

[0027] Figure 7 Schematic diagram of the sealing ring structure of the present invention;

[0028] Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle;

[0029] Figure 9 For the present invention Figure 7 The enlarged structural diagram at C in the middle;

[0030] Figure 10 Schematic diagram of the internal structure of the addition tube of the present invention.

[0031] 1. Water supply pipe; 2. Adding pipe; 3. Front retaining ring; 4. Rear retaining ring; 5. Cylinder; 6. Telescopic spring; 7. Fixing frame; 8. Push rod; 9. Positioning frame; 10. Rod body; 11. Support spring; 12. Sealing plug; 13. Limiting plate; 14. Sealing groove; 15. Rod groove; 16. Connecting groove; 17. Sealing ring; 18. Mounting groove; 19. Deformable cleaning ring; 20. Diaphragm; 21. Sealing cavity; 22. Cleaning cavity; 23. Flexible sleeve; 24. Connecting rod; 25. Water retaining frame; 26. Return spring; 27. Paddle; 28. Upper retaining ring; 29. ​​Lower mounting frame; 30. Middle rod; 31. Middle spring; 32. Upper sealing block; 33. Strip block; 34. Lower cleaning ring; 35. Rotating shaft. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Depend on Figure 1-10The present invention relates to a quantitative addition device for liquid dust suppressant, comprising a water supply pipe 1 and an addition pipe 2, wherein the addition pipe 2 is fixedly connected to the water supply pipe 1 and connected to an external box body, wherein the external box body stores liquid dust suppressant. In order to solve the problem that in the process of adding the existing liquid dust suppressant, some of them are manually added to the water supply pipe 1, which is relatively cumbersome to operate, and some of them are added to the water supply pipe 1 by pumping. However, when the flow rate in the water supply pipe 1 changes, the pumped liquid dust suppressant is still being added, resulting in a large difference in the ratio of the two, which reduces the use of the liquid dust suppressant. Effect, therefore, it is necessary to provide a device capable of controlling the addition of liquid dust suppressant according to the flow rate of water flow. Specifically, a front baffle ring 3 and a rear baffle ring 4 are fixedly arranged inside the water supply pipe 1, an automatic adding mechanism is arranged between the front baffle ring 3 and the rear baffle ring 4, and a sealing mechanism cooperating with the rear baffle ring 4 is arranged on the outside of the rear baffle ring 4; wherein the automatic adding mechanism comprises a cylinder 5, a telescopic spring 6, a fixing frame 7 and a push rod 8, wherein the cylinder 5 and the telescopic spring 6 are movably arranged in the water supply pipe 1, the telescopic spring 6 is located between the cylinder 5 and the rear baffle ring 4, the fixing frame 7 is fixedly arranged on the cylinder 5, the push rod 8 is fixedly arranged on the fixing frame 7, and the push rod 8 is used in conjunction with the sealing mechanism;

[0034] The sealing mechanism includes a positioning frame 9, a rod body 10, a support spring 11, a sealing plug 12 and a limit plate 13, wherein the positioning frame 9 is fixedly arranged in the water supply pipe 1, the rear retaining ring 4 is located between the telescopic spring 6 and the positioning frame 9, the rod body 10 is slidably arranged in the rod hole on the positioning frame 9, the support spring 11 surrounds the rod body 10, the sealing plug 12 and the limit plate 13 are respectively fixedly arranged at both ends of the rod body 10, and the sealing plug 12 is used in conjunction with the rear retaining ring 4 for sealing;

[0035] With this design, when in use, the water supply pipe 1 can be installed in places where dust control is required, such as construction sites or ore processing places. When water flows through the water supply pipe 1, the water flow will impact the fixing frame 7 on the cylinder 5, and the fixing frame 7 drives the push rod 8 to impact the sealing plug 12, so that the sealing plug 12 squeezes the telescopic spring 6 and no longer blocks the rear baffle ring 4, so that the water flow can flow inside the water supply pipe 1; at the same time, the fixing frame 7 drives the cylinder 5 to slide in the water supply pipe 1 and squeezes the telescopic spring 6, so that the cylinder 5 gradually releases the blockage of the bottom end of the addition pipe 2. At this time, the liquid dust suppressant in the external box can enter the interior of the water supply pipe 1 through the addition pipe 2, realizing the addition process of the liquid dust suppressant. When the water flow in the water supply pipe 1 stops flowing, under the action of the telescopic spring 6, the cylinder 5 returns to its original position and seals the bottom end of the addition pipe 2.

[0036] It should be noted that no structure is set inside the addition tube 2 in the above process, so that under the drive of the water flow in the water supply pipe 1, the liquid dust suppressant in the external box enters the interior of the water supply pipe 1 through the addition tube 2, and the greater the flow rate of the water flow in the water supply pipe 1, the greater the displacement of the cylinder 5, so that the effective communication area between the addition tube 2 and the water supply pipe 1 is larger, thereby achieving the purpose of adding the corresponding liquid dust suppressant according to the flow rate of the water flow in the water supply pipe 1; and in the process of the movement of the cylinder 5, the scale in the water supply pipe 1 can also be cleaned through the edge of the cylinder 5 to ensure the smoothness of the movement of the cylinder 5.

[0037] Specifically, the radius of the end of the sealing plug 12 close to the positioning frame 9 is larger than the radius of the middle portion of the sealing plug 12 , and the radius of the middle portion of the sealing plug 12 is larger than the radius of the end of the sealing plug 12 away from the positioning frame 9 .

[0038] Furthermore, in order to further improve the sealing performance of the cylinder 5 to the bottom end of the adding pipe 2, multiple groups of grooves are opened on the cylinder 5, and each group of grooves includes two sealing grooves 14, a rod groove 15, and a connecting groove 16, wherein the two sealing grooves 14 are distributed at both ends of the cylinder 5, and the two sealing grooves 14 are connected through the connecting groove 16, and the rod groove 15 is connected to one of the sealing grooves 14; wherein a sealing ring 17 is arranged in the sealing groove 14, and an annular mounting groove 18 is formed on the outer side of the sealing ring 17, and a deformable cleaning ring 19 is fixedly arranged in the mounting groove 18.

[0039] With this design, during use, when the cylinder 5 moves, the deformable cleaning ring 19 can fit more closely to the inner wall of the water supply pipe 1, so as to improve the cleaning effect of scale. When the water flow is not flowing, the sealing performance of the addition pipe 2 can be improved through the sealing ring 17.

[0040] Furthermore, the interior of the sealing ring 17 is connected to a diaphragm 20 with an integral body, and the interior of the sealing ring 17 is formed with a sealing cavity 21 and a cleaning cavity 22 through the diaphragm 20. The interior of the sealing cavity 21 and the interior of the cleaning cavity 22 are both filled with liquid. The structures of the two sealing rings 17 in the two sealing grooves 14 are basically the same. The difference is that the cleaning cavity 22 and the sealing cavity 21 in the sealing ring 17 near one end of the water retaining frame 25 are both provided with an integral flexible sleeve 23, while the sealing ring 17 away from the end of the water retaining frame 25 is only provided with a flexible sleeve 23. A flexible sleeve 23 is provided in the sealing cavity 21, while a flexible sleeve 23 is not provided in the cleaning cavity 22; a plurality of connecting rods 24 are fixedly provided on the diaphragm 20, the connecting rods 24 and the diaphragms 20 in the two sealing rings 17 are fixedly provided, and the connecting rods 24 are movably matched with the rod grooves 15, the connecting grooves 16 and the flexible sleeve 23, and a water retaining frame 25 is provided on the outside of the cylinder 5, the connecting rods 24 and the water retaining frame 25 are fixedly provided, and a return spring 26 is surrounded by the connecting rod 24, and the return spring 26 is located between the water retaining frame 25 and the cylinder 5;

[0041] With this design, when water flows, the water retaining frame 25 will drive the connecting rod 24 to move and compress the return spring 26 due to the impact of the water flow, and the connecting rod 24 drives the diaphragm 20 to move toward the inside of the cleaning cavity 22. The upper surface of the cleaning cavity 22 is deformed under pressure, so that the deformable cleaning ring 19 is closely attached to the inner wall of the water supply pipe 1, so as to further improve the cleaning effect of scale. At the same time, due to the pulling of the diaphragm 20, the sealing cavity 21 will also be deformed, so that the upper surface of the sealing cavity 21 will retract and move away from the inner wall of the water supply pipe 1. In other words, the part of the sealing ring 17 containing the deformable cleaning ring 19 is attached to the inner wall of the water supply pipe 1, and the sealing part, that is, the part of the sealing ring 17 away from the deformable cleaning ring 19 will move away from the inner wall of the water supply pipe 1. In this way, the cleaning effect of scale can be improved by the deformable cleaning ring 19 when water flows, and the sealing part on the sealing ring 17 no longer contacts the inner wall of the water supply pipe 1, so as to reduce wear.

[0042] When the water does not flow, the cylinder 5 seals the adding pipe 2. At the same time, under the action of the reset spring 26, the connecting rod 24 drives the diaphragm 20 back to its original position. At this time, under the pull of the diaphragm 20, the cleaning cavity 22 is deformed and drives the deformable cleaning ring 19 away from the inner wall of the water supply pipe 1. After the sealing cavity 21 is deformed, its upper surface is tightly attached to the inner wall of the water supply pipe 1, achieving a good sealing effect.

[0043] It should be noted that the deformable cleaning ring 19 can be made of a cleaning brush planted on a rubber ring, or it can be made of a sponge ring, which can be selected according to actual needs; and there is a reserved gap between the outer wall of the barrel mouth at one end of the barrel body 5 close to the water retaining frame 25 and the inner wall of the water supply pipe 1, so that when the sealing ring 17 shrinks, the impact of the water flow will flush the deformable cleaning ring 19 to ensure its use effect.

[0044] Specifically, the wall thickness above the sealing cavity 21 is thinner than the wall thickness of the other side walls, and the wall thickness above the cleaning cavity 22 is thinner than the wall thickness of the other side walls. This design allows the sealing cavity 21 and the cleaning cavity 22 to deform into the required shape.

[0045] In order to further accelerate the mixing of the liquid dust suppressant and the water flow, a stirring member is provided on the water retaining frame 25. The stirring member includes a rotating shaft 35 and a plurality of blades 27. The rotating shaft 35 is rotatably provided at the center of the water retaining frame 25. The plurality of blades 27 are fixedly provided along the circumference of the rotating shaft 35.

[0046] With this design, the blades 27 drive the rotating shaft 35 to rotate under the impact of the water flow, so that when the liquid dust suppressant enters the water flow in the water supply pipe 1, the rotating blades 27 can accelerate the mixing speed of the two.

[0047] Furthermore, in order to prevent the liquid dust suppressant in the addition pipe 2 from entering the addition pipe 2 when not needed, an upper retaining ring 28 and a lower mounting frame 29 are fixedly provided inside the addition pipe 2, the upper retaining ring 28 is located above the lower mounting frame 29, and a sealing and cleaning mechanism is provided on the lower mounting frame 29; the sealing and cleaning mechanism includes a middle rod 30, a middle spring 31, an upper sealing block 32, a strip block 33 and a lower cleaning ring 34, wherein the middle rod 30 is slidably provided in the rod hole on the lower mounting frame 29, the middle spring 31 surrounds the middle rod 30, the upper sealing block 32 is fixedly provided at the top end of the middle rod 30 and is sealed with the upper retaining ring 28, the strip block 33 is fixedly provided at the bottom end of the middle rod 30, the lower cleaning ring 34 is fixedly provided on the strip block 33, and the middle spring 31 is located between the upper sealing block 32 and the lower cleaning ring 34;

[0048] With this design, when water flows, the water flow in the water supply pipe 1 drives the upper sealing block 32 in the addition pipe 2 to move, so that the upper sealing block 32 no longer seals the upper baffle ring 28, so that the liquid dust suppressant passes through the upper baffle ring 28 and enters the water supply pipe 1, and the upper baffle ring 28 drives the lower cleaning ring 34 to move through the middle rod 30 during the movement, and the dirt at the connection between the addition pipe 2 and the water supply pipe 1 is cleaned by the lower cleaning ring 34 to prevent dirt accumulation from affecting the addition of the liquid dust suppressant, and when the water stops flowing, under the action of the middle spring 31, the upper sealing block 32 seals the upper baffle ring 28 again.

[0049] 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.

[0050] 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 device for quantitatively adding a liquid dust suppressant, comprising a water supply pipe (1) and an adding pipe (2), wherein the adding pipe (2) is fixedly connected to the water supply pipe (1), and the adding pipe (2) is connected to an external box, characterized in that: The water supply pipe (1) is fixedly provided with a front baffle ring (3) and a rear baffle ring (4), an automatic adding mechanism is provided between the front baffle ring (3) and the rear baffle ring (4), and a sealing mechanism cooperating therewith is provided on the outside of the rear baffle ring (4); wherein the automatic adding mechanism comprises a cylinder (5), a telescopic spring (6), a fixing frame (7) and a push rod (8), wherein the cylinder (5) and the telescopic spring (6) are both movably provided in the water supply pipe (1), the telescopic spring (6) is located between the cylinder (5) and the rear baffle ring (4), the fixing frame (7) is fixedly provided on the cylinder (5), the push rod (8) is fixedly provided on the fixing frame (7), and the push rod (8) is used in conjunction with the sealing mechanism; The sealing mechanism comprises a positioning frame (9), a rod body (10), a supporting spring (11), a sealing plug (12) and a limiting plate (13), wherein the positioning frame (9) is fixedly arranged in the water supply pipe (1), the rear retaining ring (4) is located between the telescopic spring (6) and the positioning frame (9), the rod body (10) is slidably arranged in the rod hole on the positioning frame (9), the supporting spring (11) surrounds the rod body (10), the sealing plug (12) and the limiting plate (13) are respectively fixedly arranged at both ends of the rod body (10), and the sealing plug (12) and the rear retaining ring (4) are used in a sealing manner; The cylinder (5) is provided with a plurality of grooves, each of which comprises two sealing grooves (14), a rod groove (15), and a connecting groove (16), wherein the two sealing grooves (14) are distributed at both ends of the cylinder (5), the two sealing grooves (14) are connected via the connecting groove (16), and the rod groove (15) is connected to one of the sealing grooves (14); wherein a sealing ring (17) is provided in the sealing groove (14), an annular mounting groove (18) is formed on the outer side of the sealing ring (17), and a deformable cleaning ring (19) is fixedly provided in the mounting groove (18); The interior of the sealing ring (17) is connected to a diaphragm (20) having an integral body. The interior of the sealing ring (17) forms a sealing cavity (21) and a cleaning cavity (22) through the diaphragm (20). The interior of the sealing cavity (21) and the interior of the cleaning cavity (22) are both filled with liquid. The structures of the two sealing rings (17) in the two sealing grooves (14) are basically the same. The difference is that the cleaning cavity (22) and the sealing cavity (21) in the sealing ring (17) near one end of the water retaining frame (25) are both provided with an integral flexible sleeve (23), while the sealing ring (17) away from one end of the water retaining frame (25) has only the sealing cavity (21). ) is provided with a flexible sleeve (23), while the flexible sleeve (23) is not provided in the cleaning cavity (22); a plurality of connecting rods (24) are fixedly provided on the diaphragm (20), the connecting rods (24) and the diaphragms (20) in the two sealing rings (17) are fixedly provided, and the connecting rods (24) and the rod grooves (15), the connecting grooves (16) and the flexible sleeve (23) are all movably matched, a water retaining frame (25) is provided on the outside of the cylinder (5), the connecting rods (24) and the water retaining frame (25) are fixedly provided, and a reset spring (26) is surrounded on the connecting rod (24), and the reset spring (26) is located between the water retaining frame (25) and the cylinder (5).

2. A liquid dust suppressant quantitative addition device according to claim 1, characterized in that: The radius of the end of the sealing plug (12) close to the positioning frame (9) is greater than the radius of the middle of the sealing plug (12), and the radius of the middle of the sealing plug (12) is greater than the radius of the end of the sealing plug (12) away from the positioning frame (9).

3. A liquid dust suppressant quantitative addition device according to claim 1, characterized in that: The wall thickness above the sealing cavity (21) is smaller than the wall thickness of the remaining side walls, and the wall thickness above the cleaning cavity (22) is smaller than the wall thickness of the remaining side walls.

4. A liquid dust suppressant quantitative addition device according to claim 1, characterized in that: The water retaining frame (25) is provided with a stirring member, which includes a rotating shaft (35) and a plurality of paddles (27), wherein the rotating shaft (35) is rotatably arranged at the center of the water retaining frame (25), and the plurality of paddles (27) are fixedly arranged along the circumference of the rotating shaft (35).

5. The device for quantitatively adding a liquid dust suppressant according to claim 1, characterized in that: An upper retaining ring (28) and a lower mounting frame (29) are fixedly provided inside the adding pipe (2), the upper retaining ring (28) is located above the lower mounting frame (29), and a sealing and cleaning mechanism is provided on the lower mounting frame (29).

6. A liquid dust suppressant quantitative addition device according to claim 5, characterized in that: The sealing and cleaning mechanism comprises a middle rod (30), a middle spring (31), an upper sealing block (32), a strip block (33) and a lower cleaning ring (34), wherein the middle rod (30) is slidably arranged in a rod hole on the lower mounting frame (29), the middle spring (31) surrounds the middle rod (30), the upper sealing block (32) is fixedly arranged at the top end of the middle rod (30) and is sealed with the upper retaining ring (28), the strip block (33) is fixedly arranged at the bottom end of the middle rod (30), the lower cleaning ring (34) is fixedly arranged on the strip block (33), and the middle spring (31) is located between the upper sealing block (32) and the lower cleaning ring (34).

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