Concrete mixing and dust removing device

Abstract

A concrete mixing and dust removing device comprises a base, a plurality of supporting wheels are rotationally installed at the bottom of the base, a tank is fixedly installed on the base, a first air inlet and a first air outlet are formed in the tank, an air collecting cover is installed on the first air inlet in a communicating mode, a suction fan is arranged at the first air outlet in a communicating mode, and a filter cartridge is fixedly installed in the tank. The first air inlet is located above the filter cartridge, the bottom of the filter cartridge is connected with the tank body through an annular plate, the annular plate, the filter cartridge and the tank body form a cavity, the first air outlet is communicated with the cavity, and the vertical shaft is rotationally installed in the tank body. The air filter is simple in structure and ingenious in conception, dust scraped from the filter cartridge falls to the bottom of the tank body, and the tank body is separated by the transverse plate, so that the probability that the dust flies and is attached to the filter cartridge again when air flows through the tank body is reduced, the situation that the dust is attached to the filter cartridge again to affect air filtration of the filter cartridge is avoided, and the service life of the air filter is prolonged. The method can meet actual requirements and is suitable for popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete production, and specifically relates to a concrete mixing dust removal device. Background Art

[0002] Concrete is a general term for engineering composite materials that cement aggregates into a whole by cementitious materials. Its raw materials generally include cement, sand and gravel, fly ash, additives, and water. In the process of concrete production, concrete raw materials are generally added into a mixing device, and the concrete raw materials are mixed evenly through stirring to obtain concrete. In the existing concrete mixing station, during the mixing process, it is inevitable that dust will fly, which will cause certain pollution to the environment. The dust will enter the respiratory tract of the staff, thus affecting the health of the staff, and the harm is great. The patent authorized and announced by the State Intellectual Property Office on May 26, 2023, with the authorization announcement number CN219072502U: "An energy-saving dust removal device for concrete mixing", discloses a device capable of collecting dust. However, when this device is in use, the dust scraped off the filter cartridge always stays at the bottom of the fixed cylinder. When air flows through the filter cartridge, it will cause the dust to fly, resulting in the dust reattaching to the filter cartridge, affecting the filtration of air. Therefore, we have designed a dust removal device that reduces the impact of dust. Content of the Utility Model

[0003] The utility model provides a concrete mixing dust removal device to solve the defects in the prior art.

[0004] The utility model is realized through the following technical solutions:

[0005] A concrete mixing dust removal device includes a base. Several support wheels are rotatably installed at the bottom of the base. A tank body is fixedly installed on the base. A first air inlet and a first air outlet are opened on the tank body. A wind collecting hood is connected and installed at the first air inlet. An air suction fan is connected and provided at the first air outlet. A filter cartridge is fixedly installed in the tank body. The first air inlet is located above the filter cartridge. The bottom of the filter cartridge is connected to the tank body through an annular plate. The annular plate, the filter cartridge, and the tank body form a cavity. The first air outlet is communicated with the cavity. A vertical shaft is rotatably installed in the tank body. Several scraping plates are fixedly installed on the outer circumference of the vertical shaft. First through grooves are opened on the scraping plates. The scraping plates are in sliding contact and cooperation with the filter cartridge. A first slag discharge groove is opened on one side of the lower part of the tank body. A first sealing cover is installed in the first slag discharge groove in a threaded fit. It is characterized in that: a cross plate is fixedly installed in the tank body. The cross plate divides the tank body into upper and lower parts. The vertical shaft is rotatably installed on the cross plate and extends out of the cross plate. A second through groove is opened on the cross plate. A baffle is provided at the bottom of the second through groove. The baffle is fixedly installed on the rotating shaft. A first vertical plate is fixedly installed on the rotating shaft. The rotating shaft and the cross plate are hinged through a torsion spring. A cam is fixedly installed at the bottom of the vertical shaft. A lever is fixedly installed on the longer side of the cam. The lever can be in sliding contact and cooperation with the first vertical plate.

[0006] A concrete mixing dust removal device as described above, wherein the bottom of the tank body is an inclined plane inclined towards the first slag discharge tank.

[0007] A concrete mixing dust removal device as described above, wherein a box body is fixedly installed on the base, a second air inlet and a second air outlet are sequentially opened on both sides of the box body, a suction fan is fixedly installed on the box body, the two ends of the suction fan are sequentially communicated with the first air outlet and the second air inlet, a horizontal pipe is fixedly installed in the box body, several water mist nozzles are communicated and installed at the bottom of the horizontal pipe, one end of the horizontal pipe is communicated and installed with a water pump, the water pump is fixedly installed on the box body, and a filter screen is fixedly installed in the second air outlet.

[0008] A concrete mixing dust removal device as described above, wherein several second vertical plates are fixedly installed in the box body, and the second vertical plates are distributed in a staggered manner.

[0009] A concrete mixing dust removal device as described above, wherein a filter plate is fixedly installed at the lower part of the box body, a second slag discharge tank and a water injection hole are opened on one side of the box body, a second sealing cover and a third sealing cover are sequentially installed in the second slag discharge tank and the water injection hole in a threaded manner, a water outlet hole is opened on one side of the bottom of the box body, and the water outlet hole is communicated with the water pump through a water pipe.

[0010] A concrete mixing dust removal device as described above, wherein a hand wheel is fixedly installed at the top end of the vertical shaft.

[0011] The advantages of the present utility model are as follows: The structure of the present utility model is simple and ingeniously conceived. The dust scraped off the filter cylinder falls to the bottom of the tank body. The transverse plate separates the tank body, reducing the probability that the air flow causes dust to fly and reattach to the filter cylinder, avoiding the reattachment of dust to the filter cylinder and affecting the air filtration of the filter cylinder, meeting the actual needs and being suitable for popularization. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0013] Figure 1 is a schematic structural diagram of the present utility model; Figure 2 is Figure 1 the view in the direction of A of Figure 3 is Figure 1 the view in the direction of B of

[0014] Reference numerals: 1, base; 2, support wheel; 3, tank body; 4, first air inlet; 5, first air outlet; 6, suction fan; 7, filter cartridge; 8, annular plate; 9, cavity; 10, vertical shaft; 11, scraper; 12, first through slot; 13, horizontal plate; 14, second through slot; 15, baffle; 16, rotating shaft; 17, first vertical plate; 18, cam; 19, lever; 20, first slag discharge trough; 21, first sealing cover; 22, air collecting hood; 30, box body; 31, second air inlet; 32, second air outlet; 33, horizontal pipe; 34, water mist nozzle; 35, water pump; 36, filter screen; 40, second vertical plate; 50, filter plate; 51, second slag discharge trough; 52, water injection hole; 53, second sealing cover; 54, third sealing cover; 55, water outlet hole; 56, water pipe; 60, hand wheel. Detailed implementation mode

[0015] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0016] A concrete mixing dust removal device, as Figure 1 、 2, as shown in Figures 3, it includes a base 1. Several support wheels 2 are rotatably installed at the bottom of the base 1. A tank body 3 is fixedly installed on the base 1. A first air inlet 4 and a first air outlet 5 are opened on the tank body 3. A wind collecting hood 22 is connected and installed at the first air inlet 4. An air suction fan 6 is connected and provided at the first air outlet 5. A filter cylinder 7 is fixedly installed in the tank body 3. The top of the filter cylinder 7 is fixedly installed on the tank body 3. The first air inlet 4 is located above the filter cylinder 7. The bottom of the filter cylinder 7 is connected to the tank body 3 through an annular plate 8. The filter cylinder 7, the annular plate 8, and the tank body 3 are coaxially arranged. The inner side of the annular plate 8 is fixedly connected to the outer side of the filter cylinder 7. The outer side of the annular plate 8 is fixedly connected to the inner circumference of the tank body 3. The annular plate 8, the filter cylinder 7, and the tank body 3 form a cavity 9. The first air outlet 5 communicates with the cavity 9. The first air outlet 5 is located on the side wall of the tank body 3 within the formed cavity 9. A vertical shaft 10 is rotatably installed in the tank body 3. There is a reserved hole on the tank body 3. The vertical shaft 10 is rotatably installed in the reserved hole through a sealing bearing and extends out of the tank body 3 through the reserved hole. Several scraping plates 11 are fixedly installed on the outer circumference of the vertical shaft 10. In this embodiment, there are four scraping plates 11. First through slots 12 are opened on the scraping plates 11. The first through slots 12 can facilitate the air circulation in the tank body 3. The scraping plates 11 are in sliding contact and cooperation with the filter cylinder 7. A first slag discharge groove 20 is opened on one side of the lower part of the tank body 3. A first sealing cover 21 is installed in the first slag discharge groove 20 by screw thread fit. It is characterized in that: a horizontal plate 13 is fixedly installed in the tank body 3. The first slag discharge groove 20 is located below the horizontal plate 13. The horizontal plate 13 divides the tank body 3 into upper and lower parts. The vertical shaft 10 is rotatably installed on the horizontal plate 13 and extends out of the horizontal plate 13. There is a reserved hole on the horizontal plate 13. The vertical shaft 10 is rotatably installed in the reserved hole through a sealing bearing and extends out of the horizontal plate 13 through the reserved hole. A second through slot 14 is opened on the horizontal plate 13. A baffle 15 is provided at the bottom of the second through slot 14. The baffle 15 is fixedly installed on a rotating shaft 16. A first vertical plate 17 is fixedly installed on the rotating shaft 16. The rotating shaft 16 is hinged to the horizontal plate 13 through a torsion spring, not shown in the figure. The torsion spring is sleeved on the outer circumference of the rotating shaft 16. One end of the torsion spring is fixedly connected to the rotating shaft 16, and the other end of the torsion spring is fixedly connected to the horizontal plate 13. A cam 18 is fixedly installed at the bottom of the vertical shaft 10. A lever 19 is fixedly installed on the longer side of the cam 18. One end of the lever 19 is a slope. The lever 19 can be in sliding contact and cooperation with the first vertical plate 17. The structure of the present utility model is simple and ingenious. The dust scraped off the filter cylinder 7 falls to the bottom of the tank body 3. The horizontal plate 13 separates the tank body 3, reducing the probability that the air flow causes dust to fly and the dust reattaching to the filter cylinder 7, avoiding the dust reattaching to the filter cylinder 7 and affecting the air filtration of the filter cylinder 7, which can meet the actual needs and is suitable for popularization.When using the utility model, first start the suction fan 6, the suction fan 6 will suck the air with dust attached into the tank body 3 through the wind collecting hood 22 and the first air inlet 4, and the dust will be attached to the side wall of the filter cartridge 7 after being filtered by the filter cartridge 7, and the filtered air will be discharged from the first air outlet 5. After using it for a period of time, the vertical shaft 10 is rotated, and the vertical shaft 10 drives the scraper 11 to rotate, and the dust on the filter cartridge 7 is scraped off, and the scraped dust falls onto the horizontal plate 13, and at the same time, the vertical shaft 10 drives the cam 18 and the lever 19 to rotate. Under the action of the inclined plane, the lever 19 drives the first vertical plate 17 to rotate along the rotating shaft 16, and the first vertical plate 17 drives the rotating shaft 16 and the baffle 15 to rotate. At this time, the second through groove 14 is opened, and the dust falls to the bottom of the tank body 3. After scraping is completed, the vertical shaft 10 is rotated in the opposite direction to reset it. At this time, the lever 19 releases the limit on the first vertical plate 17. Under the action of the torsion spring, the baffle 15, the rotating shaft 16, and the first vertical plate 17 are reset, and the second through groove 14 is closed again to separate the tank body 3 to prevent the dust at the bottom of the tank body 3 from flying in the tank body 3 and re-attaching to the filter cartridge 7 when the air flows through. At the same time, when a lot of dust falls on the baffle 15, the baffle 15 rotates downward along the rotating shaft 16 under the weight of the dust, and the dust enters the bottom of the tank body 3 through the second through groove 14. At this time, the torsion spring drives the rotating shaft 16 and the baffle 15 to reset; when the dust at the bottom of the tank body 3 accumulates for a period of time, the first sealing cover 21 is opened, and the dust inside the tank body 3 is cleaned through the first slag discharge groove 20. After the cleaning is completed, the first sealing cover 21 is screwed back into the first slag discharge groove 20.

[0017] Specifically, as shown in the figure, the bottom of the tank body 3 in this embodiment is an inclined surface inclined toward the first slag discharge groove 20. Part of the dust falling to the bottom of the tank body 3 can be accumulated along the inclined surface to the first slag discharge groove 20, and the accumulated dust can be taken out through the first slag discharge groove 20.

[0018] Specifically, as shown in the figure, in this embodiment, a box body 30 is fixedly installed on the base 1. Second air inlets 31 and second air outlets 32 are sequentially formed on both sides of the box body 30. An air suction fan 6 is fixedly installed on the box body 30. The two ends of the air suction fan 6 are sequentially communicated with a first air outlet 5 and a second air inlet 31. A horizontal pipe 33 is fixedly installed in the box body 30. A plurality of water mist nozzles 34 are communicated and installed at the bottom of the horizontal pipe 33. A plurality of water outlet holes are provided on the horizontal pipe 33. The horizontal pipe 33 is communicated with the corresponding water mist nozzles 34 through the water outlet holes. The water mist nozzles 34 are fixedly installed on the horizontal pipe 33. One end of the horizontal pipe 33 is communicated and installed with a water pump 35. The water pump 35 is fixedly installed on the box body 30. A filter screen 36 is fixedly installed in the second air outlet 32. The air suction fan 6 sends the air filtered by the filter cylinder 7 into the box body 30 through the second air inlet 31. The water pump 35 is communicated with an external water pipe. The water pump 35 sends water into the horizontal pipe 33 and finally sprays it out from the water mist nozzles 34. The dust in the air combines with the water mist and falls to the bottom of the box body 30, performing secondary dust removal on the air. Finally, the air is filtered by the filter screen 36 and discharged to the outside.

[0019] Further, as shown in the figure, in this embodiment, a plurality of second vertical plates 40 are fixedly installed in the box body 30, and the second vertical plates 40 are distributed in a staggered manner. The second vertical plates 40 can make the air flow in an S shape in the box body 30, extending the residence time of the air in the box body 30, enabling the dust attached to the air to fully combine with the water mist, achieving sufficient dust removal, and thus achieving a better dust removal effect.

[0020] Further, as shown in the figure, in this embodiment, a filter plate 50 is fixedly installed at the lower part of the box body 30. A second slag discharge groove 51 and a water injection hole 52 are formed on one side of the box body 30. The second slag discharge groove 51 is located on one side of the filter plate 50, facilitating the cleaning of the filter plate 50. The height of the water injection hole 52 is higher than that of the filter plate 50. Second sealing covers 53 and third sealing covers 54 are sequentially installed in the second slag discharge groove 51 and the water injection hole 52 in a threaded fit manner. An outlet hole 55 is formed on one side of the bottom of the box body 30. The outlet hole 55 is located below the filter plate 50. The outlet hole 55 is communicated with the water pump 35 through a water pipe 56. The water mist sprayed by the water mist nozzles 34 falls to the bottom of the box body 30, and the dust falls onto the filter plate 50. The filtered water is sent into the horizontal pipe 33 by the water pipe 56 and the water pump 35 and sprayed out by the water mist nozzles 34. When it is necessary to clean the filter plate 50, unscrew the second sealing cover 53 and clean the filter plate 50 through the second slag discharge groove 51. Water can be injected into the box body 30 through the water injection hole 52.

[0021] Furthermore, as shown in the figure, in this embodiment, a handwheel 60 is fixedly installed at the top of the vertical shaft 10. It is more convenient and labor-saving to rotate the vertical shaft 10 through the handwheel 60.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A concrete mixing dust removal device, comprising a base (1), several support wheels (2) are rotatably installed at the bottom of the base (1), a tank body (3) is fixedly installed on the base (1), a first air inlet (4) and a first air outlet (5) are opened on the tank body (3), a wind collecting hood (22) is connected and installed at the first air inlet (4), an air suction fan (6) is connected and provided at the first air outlet (5), a filter cylinder (7) is fixedly installed inside the tank body (3), the first air inlet (4) is located above the filter cylinder (7), the bottom of the filter cylinder (7) is connected to the tank body (3) through an annular plate (8), the annular plate (8), the filter cylinder (7) and the tank body (3) form a cavity (9), the first air outlet (5) is communicated with the cavity (9), a vertical shaft (10) is rotatably installed inside the tank body (3), several scraping plates (11) are fixedly installed on the outer circumference of the vertical shaft (10), a first through groove (12) is opened on the scraping plate (11), the scraping plate (11) is in sliding contact and cooperation with the filter cylinder (7), a first slag discharge groove (20) is opened on one side of the lower part of the tank body (3), a first sealing cover (21) is installed in the first slag discharge groove (20) by thread fit, and its characteristics are as follows: A horizontal plate (13) is fixedly installed inside the tank body (3). The horizontal plate (13) divides the tank body (3) into upper and lower parts. A vertical shaft (10) is rotatably installed on the horizontal plate (13) and extends out of the horizontal plate (13). A second through groove (14) is opened on the horizontal plate (13). A baffle (15) is provided in cooperation with the bottom of the second through groove (14). The baffle (15) is fixedly installed on a rotating shaft (16). A first vertical plate (17) is fixedly installed on the rotating shaft (16). The rotating shaft (16) is hinged to the horizontal plate (13) through a torsion spring. A cam (18) is fixedly installed at the bottom of the vertical shaft (10). A lever (19) is fixedly installed on the longer side of the cam (18). The lever (19) can be in sliding contact and cooperation with the first vertical plate (17).

2. The concrete mixing dust removal device according to claim 1, characterized in that: The bottom of the tank body (3) is an inclined surface inclined towards the first slag discharge trough (20).

3. A concrete mixing dust removal device according to claim 1, characterized in that: A box body (30) is fixedly installed on the base (1). Second air inlets (31) and second air outlets (32) are sequentially opened on both sides of the box body (30). An air suction fan (6) is fixedly installed on the box body (30). The two ends of the air suction fan (6) are sequentially communicated with a first air outlet (5) and a second air inlet (31). A horizontal pipe (33) is fixedly installed inside the box body (30). A plurality of water mist nozzles (34) are connected and installed at the bottom of the horizontal pipe (33). One end of the horizontal pipe (33) is connected and installed with a water pump (35). The water pump (35) is fixedly installed on the box body (30). A filter screen (36) is fixedly installed in the second air outlet (32).

4. A concrete mixing dust removal device according to claim 3, characterized in that: A plurality of second vertical plates (40) are fixedly installed inside the box body (30), and the second vertical plates (40) are distributed in a staggered manner.

5. The concrete mixing dust removal device according to claim 3, wherein: A filter plate (50) is fixedly installed at the lower part of the box body (30). A second slag discharge trough (51) and a water injection hole (52) are opened on one side of the box body (30). A second sealing cover (53) and a third sealing cover (54) are sequentially installed in the second slag discharge trough (51) and the water injection hole (52) in a threaded fit. An outlet hole (55) is opened on one side of the bottom of the box body (30). The outlet hole (55) is communicated with the water pump (35) through a water pipe (56).

6. A concrete mixing dust removal device according to claim 1, characterized in that: A hand wheel (60) is fixedly installed at the top of the vertical shaft (10).

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