Dust fall device for gravel hoisting pretreatment

Abstract

The invention provides a dust falling device for gravel hoisting pretreatment, and relates to the technical field of dust removal, the dust falling device comprises a discharging pipe and a dust removal box, the discharging pipe is fixedly connected with the dust removal box, an air blowing structure is arranged on one side of the discharging pipe, a material blocking plate is fixed in the discharging pipe, a water spraying structure is arranged in the discharging pipe, and a dust falling cavity is formed in the pipe wall of the discharging pipe; a spraying structure is arranged in the dust falling cavity, a communicating pipe is fixed in the dust removing box and communicated with the dust falling cavity, a filter plate is fixed in the communicating pipe and corresponds to the spraying structure, a sewage pumping structure is arranged on the lower side of the dust falling cavity, and a water tank is fixed in the dust removing box. According to the dust removal device, the air blowing structure is installed on one side of the discharging pipe, the material blocking plate is installed in the discharging pipe, the communicating pipe is installed in the dust removal box, and the water spraying structure is installed in the discharging pipe, so that air blowing dust removal can be conducted through the air blowing structure, and spraying dust removal can be conducted through the water spraying structure.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal devices, and in particular to a dust reduction device for pre-treatment of crushed stone hoisting. Background Technique

[0002] Crushed stone is small rock particles after being crushed. There are usually a large amount of dust residues in the crushed stone pile. When hoisting, the dust in the crushed stone is usually released, resulting in dust being raised and polluting the air. The solid particle waste in the dust will cause air pollution, which does not conform to the advanced environmental protection concept. Therefore, for environmental protection project construction, it is necessary to pre-treat the crushed stone before hoisting to reduce dust. Most of the existing dust reduction devices can be simply divided into air extraction dust reduction and spray dust reduction. No matter which dust reduction method is used, it is difficult to handle the dust located relatively inside the crushed stone pile, resulting in low dust reduction efficiency and poor dust reduction effect. As a result, a large amount of dust will still be generated during hoisting, leading to air pollution.

[0003] Therefore, the present invention provides a dust reduction device for pre-treatment of crushed stone hoisting. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a dust reduction device for pre-treatment of crushed stone hoisting to solve the problems raised in the above background technique. The present invention can not only carry out blowing dust removal through the blowing structure, but also carry out spray dust reduction through the water spraying structure, which can ensure the effect of blowing dust removal, and at the same time can ensure that the water spraying structure can quickly spray water onto the crushed stone to ensure that all the crushed stone can come into contact with water, thus ensuring the dust reduction effect, improving the dust reduction effect, and preventing a large amount of dust from being generated during hoisting; it can settle the blown dust, and according to the spraying direction, the filter plate can be flushed, and the sewage can be recycled through the sewage pumping structure and then sprayed onto the crushed stone, thereby reducing water resource waste; it can blow the air with dust into the water tank for dust removal, and the filtering structure can achieve a good filtering effect, thus ensuring the cleanliness of the blown air, and at the same time the filtering structure can be replaced to ensure the effect of spray dust reduction.

[0005] To achieve the above object, the present invention is realized through the following technical solutions: A dust reduction device for preprocessing gravel hoisting includes a feeding pipe and a dust removal box. The feeding pipe is fixedly connected to the dust removal box. A blowing structure is installed on one side of the feeding pipe. A baffle plate is fixed inside the feeding pipe. A water spraying structure is installed inside the feeding pipe. A dust reduction chamber is formed in the pipe wall of the feeding pipe. A spraying structure is installed in the dust reduction chamber. A connecting pipe is fixed inside the dust removal box. The connecting pipe is connected to the dust reduction chamber. A filter plate is fixed inside the connecting pipe. The filter plate corresponds to the spraying structure. A sewage pumping structure is installed on the lower side of the dust reduction chamber. A water tank is fixed inside the dust removal box. The water tank corresponds to the connecting pipe. A first partition and a second partition are fixed inside the water tank. Filter structures are installed in both the first partition and the second partition.

[0006] Further, a through groove is opened on one side of the feeding pipe. The blowing structure includes a first fan, and the first fan is fixed in the through groove. A plurality of first through holes are opened inside the feeding pipe. The first through holes are connected to the dust reduction chamber. The through groove is located on the side of the feeding pipe inside and opposite to the first through holes. A groove is opened inside the feeding pipe. The groove corresponds to the water spraying structure.

[0007] Further, the water spraying structure includes a first water pipe fixed in the groove. The first water pipe is of a ring structure. A plurality of water spraying heads are fixed on the first water pipe. A first water pump is fixed inside the water tank. The water inlet end of the first water pump is located at the bottom inside the water tank. The water outlet end of the first water pump is connected to the first water pipe. A feeding port is opened in the baffle plate. The feeding port is located above the first water pipe, and the feeding port is of a strip-shaped structure.

[0008] Further, the spraying structure includes a second water pipe fixed at the top inside the dust reduction chamber. A plurality of water spraying holes are opened on the second water pipe. The water spraying holes are inclined towards the filter plate. A water baffle is slidably fitted inside the dust reduction chamber. A first sliding groove is opened inside the feeding pipe. The first sliding groove corresponds to the water baffle. Friction lines are provided on the water baffle. A limiting block is fixed at the top of the water baffle. A second water pump is fixed inside the dust removal box. The water inlet end of the second water pump is located at the bottom inside the water tank. The water outlet end of the second water pump is connected to the second water pipe.

[0009] Further, the sewage pumping structure includes a sewage pump. A collection groove is opened at the bottom inside the dust reduction chamber. A sewage pipe is fixed below the collection groove. The sewage pipe is connected to the collection groove. The sewage inlet end of the sewage pump is connected to the sewage pipe. The sewage outlet end of the sewage pump is connected to the water tank. The sewage outlet end of the sewage pump is located between the first partition and the second partition. The sewage pump is fixed on the water tank.

[0010] Further, a second fan is installed inside the connecting pipe. A third water pump is fixed inside the connecting pipe. The water inlet end of the third water pump is located at the bottom inside the water tank. The water outlet end of the third water pump is located inside the connecting pipe, and the water outlet end of the third water pump is arranged obliquely upwards. A protective shell is fixed inside the connecting pipe. The second fan is fixed inside the protective shell. The end of the connecting pipe is located between the first partition and the second partition.

[0011] Further, the filtering structure includes filter cotton. A plurality of mounting grooves are formed in both the first partition plate and the second partition plate. Two first plate bodies and two second plate bodies are installed in the mounting grooves. The two second plate bodies are located between the two first plate bodies, and the filter cotton is located between the two second plate bodies. The first plate body is fixedly connected to the mounting groove, and the second plate body is slidably connected to the mounting groove.

[0012] Further, second chutes are formed in both the dust removal box and the water tank. The second chutes correspond to the second plate bodies, and a plurality of second through holes are formed in both the first plate body and the second plate body.

[0013] Further, a blocking block is fixed in the second chute on one side of the dust removal box, and a spring is fixed between the groove wall of the second chute on the other side of the dust removal box and the second plate body.

[0014] Further, a water inlet pipe is fixed to the dust removal box. The water inlet pipe is communicated with the water tank. An air outlet pipe is fixed to the top of the dust removal box, and a third fan is fixed in the air outlet pipe.

[0015] Advantages of the present invention:

[0016] 1. Install a blowing structure on one side of the blanking pipe, install a baffle in the blanking pipe, install a communicating pipe in the dust removal box, and install a water spraying structure in the blanking pipe. It can not only blow and remove dust through the blowing structure, but also spray and reduce dust through the water spraying structure. The amount of blanking can be controlled by the baffle. The crushed stones can collide with the baffle to raise dust, so as to ensure the effect of blowing and removing dust. At the same time, it can ensure that the water spraying structure can quickly spray water onto the crushed stones to ensure that all the crushed stones can come into contact with water, so as to ensure the dust reduction effect, improve the dust reduction effect, and prevent a large amount of dust from being generated during hoisting.

[0017] 2. Install a spraying structure in the dust reduction chamber and install a sewage pumping structure under the dust reduction chamber, so that the blown dust can be settled, and the filter plate can be washed according to the spraying direction to ensure the filtering effect of the filter plate. The sewage can be recycled through the sewage pumping structure and then sprayed onto the crushed stones, thereby reducing the waste of water resources.

[0018] 3. Install a first partition plate and a second partition plate in the water tank, and install a filtering structure in the first partition plate and the second partition plate. The sewage can be filtered through the filtering structure, and the air with dust can be blown into the water tank for dust removal. The filtering structure can achieve a good filtering effect, so as to ensure the cleanliness of the blown air. At the same time, the filtering structure can be replaced. When pulled out, the second through holes can be blocked to prevent the sewage between the first plate body and the second plate body from polluting the relatively clean water, so as to ensure the effect of spraying and reducing dust. Description of the Drawings

[0019] Figure 1 This is a schematic three-dimensional assembly structure diagram of the overall dust reduction device for preprocessing gravel hoisting in the present invention;

[0020] Figure 2 This is a schematic three-dimensional assembly structure diagram of the feed pipe and baffle in the dust reduction device for preprocessing gravel hoisting in the present invention;

[0021] Figure 3 This is a schematic sectional assembly structure diagram of the dust removal box in the dust reduction device for preprocessing gravel hoisting in the present invention;

[0022] Figure 4 This is a schematic three-dimensional assembly structure diagram of the overall dust reduction device for preprocessing gravel hoisting in the present invention;

[0023] Figure 5 This is a schematic sectional assembly structure diagram of the dust removal box and water tank in the dust reduction device for preprocessing gravel hoisting in the present invention;

[0024] Figure 6 This is a schematic sectional assembly structure diagram of the water tank in the dust reduction device for preprocessing gravel hoisting in the present invention;

[0025] Figure 7 It is Figure 6 a schematic diagram at position A in

[0026] Figure 8 It is Figure 6 a schematic diagram at position B in

[0027] Figure 9 This is a schematic sectional assembly structure diagram of the feed pipe in the dust reduction device for preprocessing gravel hoisting in the present invention;

[0028] Figure 10 This is a schematic sectional assembly structure diagram of the feed pipe and dust reduction chamber in the dust reduction device for preprocessing gravel hoisting in the present invention;

[0029] In the figure: 1. Feed pipe; 2. Dust removal box; 3. Through groove; 4. First fan; 5. Baffle; 6. First through hole; 7. Dust reduction chamber; 8. First water pipe; 9. Second water pipe; 10. Groove; 11. Sprinkler head; 12. Sprinkler hole; 13. Water baffle; 14. First chute; 15. Connecting pipe; 16. Filter plate; 17. Collection tank; 18. Sewage pump; 19. Sewage pipe; 20. Second fan; 21. Water tank; 22. First partition; 23. Second partition; 24. First water pump; 25. Second water pump; 26. Third water pump; 27. Water inlet pipe; 28. Air outlet pipe; 29. Third fan; 30. Protective shell; 31. Installation groove; 32. First plate body; 33. Second plate body; 34. Second through hole; 35. Plug; 36. Second chute; 37. Spring; 38. Feed opening; 39. Filter cotton. Detailed implementation manners

[0030] To make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0031] Please refer to Figures 1 to 10 , the present invention provides a technical solution: a dust reduction device for preprocessing gravel hoisting, including a feeding pipe 1 and a dust removal box 2. The feeding pipe 1 is fixedly connected to the dust removal box 2. A blowing structure is installed on one side of the feeding pipe 1. A baffle plate 5 is fixed in the feeding pipe 1. A water spraying structure is installed in the feeding pipe 1. A dust reduction cavity 7 is formed in the pipe wall of the feeding pipe 1. A spraying structure is installed in the dust reduction cavity 7. A communicating pipe 15 is fixed in the dust removal box 2. The communicating pipe 15 is communicated with the dust reduction cavity 7. A filter plate 16 is fixed in the communicating pipe 15. The filter plate 16 corresponds to the spraying structure. A sewage pumping structure is installed on the lower side of the dust reduction cavity 7. A water tank 21 is fixed in the dust removal box 2. The water tank 21 corresponds to the communicating pipe 15. A first partition plate 22 and a second partition plate 23 are fixed in the water tank 21. Filter structures are installed in both the first partition plate 22 and the second partition plate 23.

[0032] In this embodiment, a through groove 3 is formed on one side of the feeding pipe 1. The blowing structure includes a first blower 4. The first blower 4 is fixed in the through groove 3. A plurality of first through holes 6 are formed in the feeding pipe 1. The first through holes 6 are communicated with the dust reduction cavity 7. The through groove 3 is located on the side of the feeding pipe 1 opposite to the first through holes 6. A groove 10 is formed in the feeding pipe 1. The groove 10 corresponds to the water spraying structure.

[0033] Specifically, when the first blower 4 is started, the first blower 4 can blow air into the feeding pipe 1, and the second blower 20 in the communicating pipe 15 can draw air, so as to blow the dust in the gravel into the dust reduction cavity 7, and the gravel falls onto the baffle plate 5, causing the baffle plate 5 to collide with the gravel, thus raising dust. At this time, the blowing can blow out the dust more thoroughly, so that the air with dust can be dust-reduced in the dust reduction cavity 7, thereby ensuring the dust removal effect on the gravel and ensuring thorough dust removal.

[0034] The water spraying structure includes a first water pipe 8 fixed in the groove 10. The first water pipe 8 is of an annular structure. A plurality of water spray heads 11 are fixed on the first water pipe 8. A first water pump 24 is fixed in the water tank 21. The water inlet end of the first water pump 24 is located at the bottom of the water tank 21. The water outlet end of the first water pump 24 is communicated with the first water pipe 8. A material outlet 38 is formed in the baffle plate 5. The material outlet 38 is located above the first water pipe 8, and the material outlet 38 is of a long strip structure.

[0035] Specifically, when the crushed stones fall onto the baffle 5, the crushed stones then fall from the long strip-shaped material outlet 38, thereby reducing the falling amount and preventing the crushed stones inside from not fully contacting with water. Start the first water pump 24, and then water can be pumped by the first water pump 24 and sprayed out through the spray heads 11 on the first water pipe 8, so that the water is sprayed onto the crushed stones more evenly and sufficiently, ensuring that the crushed stones are fully in contact with water, thereby performing spray dust reduction. Combining with the blowing dust reduction of the first fan 4, the overall dust reduction effect can be ensured, preventing a large amount of dust from being generated during hoisting.

[0036] The spray structure includes a second water pipe 9 fixed to the top inside the dust reduction chamber 7. A plurality of spray holes 12 are formed in the second water pipe 9, and the spray holes 12 are inclined towards the filter plate 16. A water baffle 13 is slidably fitted inside the dust reduction chamber 7. A first chute 14 is formed in the material discharge pipe 1, and the first chute 14 corresponds to the water baffle 13. Friction lines are provided on the water baffle 13. A limiting block is fixed to the top of the water baffle 13. A second water pump 25 is fixed inside the dust removal box 2. The water inlet end of the second water pump 25 is located at the bottom inside the water tank 21, and the water outlet end of the second water pump 25 is communicated with the second water pipe 9.

[0037] Specifically, the air with a large amount of dust is blown into the dust reduction chamber 7 by the blowing of the first fan 4 and the air extraction of the second fan 20. At this time, start the second water pump 25 to pump water, so that the water is sprayed out from the spray holes 12, and then spray dust reduction can be carried out, thus realizing the first dust reduction. Then, the air after the spray dust reduction enters the communication pipe 15 through the filter plate 16, and the second dust reduction can be carried out through the filter plate 16 to ensure the dust reduction effect, and the filter plate 16 can be sprayed with water through the spray holes 12.

[0038] When it is necessary to slide the water baffle 13 down to a certain extent, manually press the water baffle 13 until the water baffle 13 slides to the bottom. At this time, the water baffle 13 blocks the water flow sprayed out from the spray holes 12, that is, the water is sprayed from the spray holes 12 onto the water baffle 13 and then flows down from the water baffle 13 to form a water curtain, and then dust reduction can be carried out. When the water baffle 13 is pulled up, the water baffle 13 no longer blocks the water at this time, so the water sprayed out from the spray holes 12 is directly sprayed onto the filter plate 16, thereby cleaning the filter plate 16, and the water flow can form a water film on the surface of the filter plate 16. At this time, if air passes through, the air with dust will contact the water film, and thus a good dust reduction effect can also be achieved.

[0039] The sewage extraction structure includes a sewage extraction pump 18. A collection tank 17 is formed at the bottom inside the dust reduction chamber 7. A sewage extraction pipe 19 is fixed below the collection tank 17, and the sewage extraction pipe 19 is communicated with the collection tank 17. The sewage inlet end of the sewage extraction pump 18 is communicated with the sewage extraction pipe 19. The sewage discharge end of the sewage extraction pump 18 is connected to the water tank 21. The sewage discharge end of the sewage extraction pump 18 is located between the first partition plate 22 and the second partition plate 23. The sewage extraction pump 18 is fixed on the water tank 21.

[0040] Specifically, the sewage formed by spray dust suppression flows downward and enters the collection tank 17. The sewage pump 18 is started, and the sewage pump 18 can extract the sewage in the collection tank 17 through the sewage extraction pipe 19, and then send it into the water tank 21. Then, it is filtered through the filtering structures on the first partition plate 22 and the second partition plate 23, so as to purify the sewage. Then, the purified water is sent into the first water pipe 8 and the second water pipe 9 for spraying, thereby reducing the waste of water resources.

[0041] A second fan 20 is installed in the connecting pipe 15, and a third water pump 26 is fixed in the connecting pipe 15. The water inlet end of the third water pump 26 is located at the bottom in the water tank 21, and the water outlet end of the third water pump 26 is located in the connecting pipe 15, and the water outlet end of the third water pump 26 is arranged obliquely upward. A protective shell 30 is fixed in the connecting pipe 15, the second fan 20 is fixed in the protective shell 30, and the end of the connecting pipe 15 is located between the first partition plate 22 and the second partition plate 23.

[0042] Specifically, the air containing dust is filtered by the water sprayed from the second water pipe 9 and passes through the filter plate 16, and then is directly blown into the water in the water tank 21 through the connecting pipe 15, so as to perform the third dust suppression, ensure the cleanliness of the blown air, and prevent air pollution.

[0043] When the second fan 20 is started, the air in the connecting pipe 15 can be blown by the second fan 20, so that the air with dust in the connecting pipe 15 is blown into the water tank 21, and after being filtered by water, it is blown out from the top of the water tank 21. And a negative pressure environment is generated in the connecting pipe 15, so that the air with dust can be better extracted, ensuring more thorough dust removal; relatively clean water can also be extracted by the third water pump 26 and sprayed into the connecting pipe 15, so as to prevent dust from adhering to the inner wall of the connecting pipe 15, ensure the cleanliness and tidiness of the connecting pipe 15, and the fan blades of the second fan 20 can be sprayed with water for cleaning, preventing dust from adhering to the fan blades of the second fan 20, so as to ensure the blowing effect of the second fan 20 and prevent static electricity from being generated due to the friction between dust and air in the connecting pipe 15, resulting in dust adsorption.

[0044] The filtering structure includes filter cotton 39. A plurality of installation grooves 31 are respectively formed in the first partition plate 22 and the second partition plate 23. Two first plate bodies 32 and two second plate bodies 33 are installed in the installation grooves 31. The two second plate bodies 33 are located between the two first plate bodies 32. The filter cotton 39 is located between the two second plate bodies 33. The first plate body 32 is fixedly connected to the installation groove 31, and the second plate body 33 is slidably connected to the installation groove 31.

[0045] Specifically, the sewage can be filtered by the filter cotton 39. After passing through the filter cotton 39, the sewage is pumped out by the first water pump 24, the second water pump 25 and the third water pump 26 for spraying, so as to realize the recycling and utilization of the sewage. Moreover, the filter cotton 39 can be replaced individually without replacing the entire first plate body 32 and the second plate body 33, which can ensure the filtering effect of the filter cotton 39, reduce the replacement cost, lower the difficulty of replacing the filter cotton 39, improve the replacement efficiency. At the same time, the first plate body 32 and the second plate body 33 can prevent the sewage from communicating with the relatively clean water, prevent the first water pump 24, the second water pump 25 and the third water pump 26 from pumping out sewage, and prevent the first water pump 24, the second water pump 25 and the third water pump 26 from being blocked.

[0046] Second chutes 36 are provided in both the dust removal box 2 and the water tank 21. The second chutes 36 correspond to the second plate body 33. A plurality of second through holes 34 are provided on both the first plate body 32 and the second plate body 33. A blocking block 35 is fixed in the second chute 36 on one side of the dust removal box 2. The blocking block 35 is snap-fitted and fixed in the second chute 36. A spring 37 is fixed between the groove wall of the second chute 36 on the other side of the dust removal box 2 and the second plate body 33.

[0047] Specifically, when the filter cotton 39 needs to be replaced, the blocking block 35 can be pulled at this time, so that the blocking block 35 is pulled out of the second chute 36, so that the second chute 36 communicates with the outside, and the filter cotton 39 can be pulled out individually, so that the filter cotton 39 can be replaced. When the blocking block 35 is pulled out, the blocking block 35 no longer limits the second plate body 33 at this time, so that the spring 37 rebounds to push the second plate body 33, causing the second plate body 33 to slide, so that the second through holes 34 on the second plate body 33 are displaced from the second through holes 34 on the first plate body 32. At this time, the first plate body 32 and the second plate body 33 can be blocked, so as to prevent the sewage from mixing with the relatively clean water in the water tank 21 without filtration, ensure that the water for spraying is relatively clean, and thus ensure the effect of spray dust removal.

[0048] A water inlet pipe 27 is fixed on the dust removal box 2. The water inlet pipe 27 communicates with the water tank 21. An air outlet pipe 28 is fixed on the top of the dust removal box 2. A third fan 29 is fixed in the air outlet pipe 28.

[0049] Specifically, when the third fan 29 is started, the relatively clean air in the water tank 21 can be blown out from the air outlet pipe 28 through the third fan 29, and water can also be added to the water tank 21 through the water inlet pipe 27, so as to prevent the water in the water tank 21 from decreasing, ensure that the water level in the water tank 21 can always be higher than the upper first partition plate 22, and thus ensure the dust removal effect.

[0050] And even if the water level is lower than the second partition plate 23, at this time, the filter cotton 39 can directly filter the air, so that the dust removal effect can still be achieved, ensuring the thoroughness of the dust removal of the device.

[0051] Working process: Before hoisting the crushed stones, pour the crushed stones into the feeding pipe 1. The crushed stones fall onto the baffle plate 5. Start the first blower 4, and then the first blower 4 can blow air into the feeding pipe 1, and the second blower 20 in the connecting pipe 15 sucks air, so as to blow the dust in the crushed stones into the dust settling chamber 7. And the crushed stones fall onto the baffle plate 5, causing the baffle plate 5 to collide with the crushed stones, thus raising dust. At this time, the blowing can blow out the dust into the dust settling chamber 7 more thoroughly. Then the crushed stones fall from the long strip-shaped feeding port 38, so as to reduce the falling amount and prevent the crushed stones inside from not being able to fully contact with water. Start the first water pump 24, and then the first water pump 24 can pump water and spray it out through the spray head 11 on the first water pipe 8, so that the water is sprayed onto the crushed stones more evenly and fully, ensuring that the crushed stones can fully contact with water, and thus spray dust reduction is carried out; for the air containing a large amount of dust entering the dust settling chamber 7, start the second water pump 25 to pump water, and then the water is sprayed out from the spray holes 12. When the sliding baffle plate 13 slides down to a certain extent, at this time, the baffle plate 13 blocks the water flow sprayed out from the spray holes 12, that is, the water sprayed out from the spray holes 12 sprays onto the baffle plate 13 and then flows down from the baffle plate 13 to form a water curtain, so as to carry out dust reduction, thus realizing the first dust reduction. Then the air after spray dust reduction passes through the filter plate 16 and enters the connecting pipe 15, and the second dust reduction can be carried out through the filter plate 16; or pull up the baffle plate 13, at this time, the baffle plate 13 no longer blocks water, so the water sprayed out from the spray holes 12 directly sprays onto the filter plate 16, thus cleaning the filter plate 16, and the water flow can form a water film on the surface of the filter plate 16. At this time, when air passes through, the air with dust will contact the water film for dust reduction. No matter which dust reduction method is used, the sewage formed by dust reduction flows downward and enters the collection tank 17. Start the sewage pump 18, and the sewage pump 18 can extract the sewage in the collection tank 17 through the sewage pipe 19 and send it into the water tank 21, and then filter it through the filtering structures on the first partition plate 22 and the second partition plate 23. For the air entering the connecting pipe 15, it is directly blown into the water in the water tank 21 through the connecting pipe 15, so that the third dust reduction can be carried out, and it is blown out from the top of the water tank 21 after being filtered by water. Then start the third blower 29, and the third blower 29 can blow the relatively clean air in the water tank 21 out from the air outlet pipe 28.

[0052] For the sewage between the first partition plate 22 and the second partition plate 23, the sewage can be filtered by the filter cotton 39, so as to ensure that the first water pump 24, the second water pump 25 and the third water pump 26 pump out relatively clean water. When it is necessary to replace the filter cotton 39, at this time, the blocking block 35 can be pulled, so that the blocking block 35 is pulled out from the second chute 36, so that the second chute 36 is communicated with the outside, and the filter cotton 39 can be separately pulled out, so that the filter cotton 39 can be replaced. And when the blocking block 35 is pulled out, at this time, the blocking block 35 no longer limits the second plate body 33, so the spring 37 rebounds to push the second plate body 33, so that the second plate body 33 slides, so that the second through hole 34 on the second plate body 33 is displaced from the second through hole 34 on the first plate body 32. At this time, the first plate body 32 and the second plate body 33 can be blocked, so as to prevent the sewage from mixing with the relatively clean water in the water tank 21 without passing through the filter.

[0053] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. The narrative way of this specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dust reduction device for pre - treatment of gravel hoisting, comprising a blanking pipe (1) and a dust removal box (2), characterized in that, The blanking pipe (1) is fixedly connected to the dust removal box (2). A blowing structure is installed on one side of the blanking pipe (1). A baffle plate (5) is fixed inside the blanking pipe (1). A water spraying structure is installed inside the blanking pipe (1). A dust reduction cavity (7) is formed inside the pipe wall of the blanking pipe (1). A spraying structure is installed inside the dust reduction cavity (7). A connecting pipe (15) is fixed inside the dust removal box (2). The connecting pipe (15) is communicated with the dust reduction cavity (7). A filter plate (16) is fixed inside the connecting pipe (15). The filter plate (16) corresponds to the spraying structure. A sewage extraction structure is installed on the lower side of the dust reduction cavity (7). A water tank (21) is fixed inside the dust removal box (2). The water tank (21) corresponds to the connecting pipe (15). A first partition plate (22) and a second partition plate (23) are fixed inside the water tank (21). Filter structures are installed inside both the first partition plate (22) and the second partition plate (23).

2. The dust reduction device for preprocessing gravel hoisting according to claim 1, wherein: A through groove (3) is formed on one side of the blanking pipe (1). The blowing structure includes a first blower (4). The first blower (4) is fixed inside the through groove (3). A plurality of first through holes (6) are formed inside the blanking pipe (1). The first through holes (6) are communicated with the dust reduction cavity (7). The through groove (3) is located on the side of the blanking pipe (1) opposite to the first through holes (6) inside the blanking pipe (1). A groove (10) is formed inside the blanking pipe (1). The groove (10) corresponds to the water spraying structure.

3. The dust reduction device for preprocessing gravel hoisting according to claim 2, characterized in that: The water spraying structure includes a first water pipe (8) fixed inside the groove (10). The first water pipe (8) is of an annular structure. A plurality of water spraying heads (11) are fixed on the first water pipe (8). A first water pump (24) is fixed inside the water tank (21). The water inlet end of the first water pump (24) is located at the bottom inside the water tank (21). The water outlet end of the first water pump (24) is communicated with the first water pipe (8). A blanking port (38) is formed inside the baffle plate (5). The blanking port (38) is located above the first water pipe (8), and the blanking port (38) is of a strip-shaped structure.

4. A dust reduction device for pre - treatment of gravel hoisting according to claim 1, characterized in that: The spraying structure includes a second water pipe (9) fixed at the top inside the dust reduction cavity (7). A plurality of water spraying holes (12) are formed on the second water pipe (9). The water spraying holes (12) are inclined towards the filter plate (16). A water baffle plate (13) is slidably fitted inside the dust reduction cavity (7). A first sliding groove (14) is formed inside the blanking pipe (1). The first sliding groove (14) corresponds to the water baffle plate (13). Friction lines are provided on the water baffle plate (13). A limiting block is fixed at the top of the water baffle plate (13). A second water pump (25) is fixed inside the dust removal box (2). The water inlet end of the second water pump (25) is located at the bottom inside the water tank (21). The water outlet end of the second water pump (25) is communicated with the second water pipe (9).

5. A dust reduction device for pre - treatment of gravel hoisting according to claim 1, characterized in that: The sewage pumping structure includes a sewage pump (18). A collection tank (17) is opened at the bottom inside the dust - settling chamber (7). A sewage pumping pipe (19) is fixed under the collection tank (17). The sewage pumping pipe (19) is communicated with the collection tank (17). The sewage inlet end of the sewage pump (18) is communicated with the sewage pumping pipe (19). The sewage discharge end of the sewage pump (18) is connected to the water tank (21). The sewage discharge end of the sewage pump (18) is located between the first partition plate (22) and the second partition plate (23). The sewage pump (18) is fixed on the water tank (21).

6. The dust reduction device for pre - treatment of gravel hoisting according to claim 1, wherein: A second blower (20) is installed inside the connecting pipe (15). A third water pump (26) is fixed inside the connecting pipe (15). The water inlet end of the third water pump (26) is located at the bottom inside the water tank (21). The water outlet end of the third water pump (26) is located inside the connecting pipe (15), and the water outlet end of the third water pump (26) is arranged obliquely upward. A protective shell (30) is fixed inside the connecting pipe (15). The second blower (20) is fixed inside the protective shell (30). The end of the connecting pipe (15) is located between the first partition plate (22) and the second partition plate (23).

7. The dust suppression device for pre-treatment of gravel hoisting according to claim 1, wherein: The filtering structure includes filter cotton (39). A plurality of installation grooves (31) are opened in both the first partition plate (22) and the second partition plate (23). Two first plate bodies (32) and two second plate bodies (33) are installed in the installation grooves (31). The two second plate bodies (33) are located between the two first plate bodies (32). The filter cotton (39) is located between the two second plate bodies (33). The first plate body (32) is fixedly connected to the installation groove (31), and the second plate body (33) is slidably connected to the installation groove (31).

8. A dust reduction device for pre - treatment of gravel hoisting according to claim 7, characterized in that: Second sliding grooves (36) are opened in both the dust - removing box (2) and the water tank (21). The second sliding grooves (36) correspond to the second plate bodies (33). A plurality of second through - holes (34) are opened on both the first plate body (32) and the second plate body (33).

9. The dust reduction device for preprocessing gravel hoisting according to claim 8, characterized in that: A blocking block (35) is fixed in the second sliding groove (36) on one side of the dust - removing box (2). A spring (37) is fixed between the groove wall of the second sliding groove (36) on the other side of the dust - removing box (2) and the second plate body (33).

10. A dust reduction device for pre - treatment of gravel hoisting according to claim 1, characterized in that: A water inlet pipe (27) is fixed on the dust - removing box (2). The water inlet pipe (27) is communicated with the water tank (21). An air outlet pipe (28) is fixed on the top of the dust - removing box (2). A third blower (29) is fixed inside the air outlet pipe (28).

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