Premixed concrete powder dust collecting device

Abstract

The utility model discloses a dust collecting device for premixed concrete powder, and relates to the technical field of concrete production equipment. Comprising a rack, a dust removal mechanism is fixed to the inner wall of the rack, a dust collection mechanism is fixed to the inner wall of the rack, the dust removal mechanism is located at the top of the dust collection mechanism and communicates with the dust collection mechanism, the dust removal mechanism comprises a shell, and an electrostatic generator is fixed to the outer wall of the shell. According to the concrete powder collection device, the dust collection mechanism is arranged, the dust collection plate and the scraper blade are additionally arranged in the dust collection mechanism, and when concrete powder is collected, the dust collection plate can generate static electricity under the action of the electrostatic generator, so that the powder drifting away in the device can be well adsorbed by the dust collection plate; and therefore, the scraping plate can clean and collect dust on the dust collection plate, and the dust collection efficiency of the device is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete production equipment, specifically to a dust collection device for premixed concrete powder. Background Technology

[0002] When pre-mixing concrete, a lot of powder is generated. In order to improve the utilization rate of concrete, it is necessary to collect the dust from the concrete powder during the mixing process. Therefore, a dust collection device for pre-mixed concrete powder is needed.

[0003] For example, a premixed concrete powder dust collection and reuse device with patent publication number CN216543942U uses a motor, a drive shaft, and a dust collection roller to work together. When the motor rotates, it drives the drive shaft to rotate, which in turn causes the dust collection roller to rotate. The powder attached to the dust collection roller is thrown out by centrifugal force. At this time, the powder can fall to the bottom of the inner cavity of the air collection cylinder and then fall from the dust outlet pipe, which facilitates the recycling and reuse of the powder.

[0004] However, in actual use, the dust collection device for premixed concrete powder may cause some dust to float at the bottom of the air collection cylinder due to the centrifugal force that causes the powder on the dust collection roller to be thrown out, which does not effectively improve the dust collection. Therefore, the applicant proposes a dust collection device for premixed concrete powder. Utility Model Content

[0005] The purpose of this invention is to provide a dust collection device for premixed concrete powder to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a premixed concrete powder dust collection device, comprising a frame, a dust removal mechanism fixed to the inner wall of the frame, a dust collection mechanism fixed to the inner wall of the frame, the dust removal mechanism being located at the top of the dust collection mechanism and the two being interconnected, the dust removal mechanism comprising a shell, an electrostatic generator fixed to the outer wall of the shell, the output end of the electrostatic generator penetrating through one side of the outer wall of the shell and electrically connected to a dust suction plate, a plurality of scrapers contacting the inner wall of the dust suction plate, a rotating rod fixed to one end of the plurality of scrapers, a fan blade fixed to the top of the rotating rod, a dust collection cover rotatably connected to the bottom of the rotating rod, a connecting pipe fixed to the top of the inner wall of the shell, the fan blade being located inside the connecting pipe, and a dust discharge cover fixed to the bottom of the connecting pipe.

[0007] Preferably, the scrapers are evenly distributed at equal angles around the center of the rotating rod, the diameter of the air inlet orifice of the dust discharge cover is larger than the diameter of the exhaust orifice, the top of the dust collection cover is concave, the rotating rod is located at the center of the concave surface of the dust collection cover, and the dust collection cover does not contact the dust collection plate.

[0008] Preferably, the outer wall of the top of the outer shell has several openings, which are evenly distributed at equal angles around the center of the outer shell. The connecting pipe is located inside the openings. A fixing frame is fixed at the top opening of the outer shell, and an exhaust plate is fixed on the inner wall of the fixing frame. A dust inlet pipe is fixed at the feed inlet of the top of the outer shell.

[0009] Preferably, an arc groove ring is fixed to the top of the dust collection plate, and the connecting pipe is located inside the arc groove ring. The height of the arc groove ring inside the outer shell is greater than the height of the connecting pipe inside the outer shell, and the two do not contact each other.

[0010] Preferably, a baffle is fixed to one side of each of the scrapers, and the bottom end of the baffle is located between the dust suction plate and the dust collection cover.

[0011] Preferably, the dust collection mechanism includes a fixed frame, an inner shell fixed at the center of the bottom of the inner wall of the fixed frame, the top of the inner shell fixed to the bottom of the dust collection cover in the dust collection mechanism, a motor fixed at the bottom of the inner wall of the inner shell, the output end of the motor passing through the center of the bottom of the dust collection cover and fixed to the bottom end of the rotating rod, and a plurality of dust collection boxes slidably engaged at the bottom of the inner wall of the fixed frame, the plurality of dust collection boxes being evenly distributed at equal angles around the center of the fixed frame, and the inner shell being located between the plurality of dust collection boxes.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] This ready-mixed concrete powder dust collection device incorporates a dust collection plate and a scraper in its dust removal mechanism. When collecting concrete powder, the dust collection plate generates static electricity under the action of an electrostatic generator, which allows the powder floating inside the device to be effectively adsorbed by the dust collection plate. This enables the scraper to clean and collect the dust on the dust collection plate, thereby improving the dust collection efficiency of the device.

[0014] Meanwhile, the dust removal mechanism is also equipped with a dust inlet cover and a dust outlet cover. When collecting concrete powder, the dust outlet cover has a larger inlet diameter than the outlet diameter, which allows the powder entering the device to be concentrated and accelerated by the fan blades and blown away by the position of the dust inlet cover. At this time, the concave curvature of the dust inlet cover can effectively blow most of the powder toward the dust collection plate, reducing the amount of powder floating inside the device and further improving the dust collection efficiency of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the top structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the bottom structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the dust removal mechanism of this utility model;

[0018] Figure 4 for Figure 3 A magnified view of part A in the middle;

[0019] Figure 5 This is a schematic diagram of the dust collection mechanism of this utility model.

[0020] In the diagram: 1. Frame; 2. Dust removal mechanism; 201. Outer shell; 202. Electrostatic generator; 203. Dust suction plate; 204. Scraper; 205. Rotating rod; 206. Fan blade; 207. Dust collection cover; 208. Connecting pipe; 209. Dust discharge cover; 210. Fixing frame; 211. Exhaust plate; 212. Dust inlet pipe; 213. Arc groove ring; 214. Baffle; 3. Dust collection mechanism; 301. Fixing frame; 302. Inner shell; 303. Motor; 304. Dust collection box. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In many construction processes, concrete pre-mixing is required. During this process, a lot of concrete dust is generated. To reduce resource waste and improve concrete utilization, dust collection is necessary. Therefore, a pre-mixed concrete dust collection device is needed. However, most traditional pre-mixed concrete dust collection devices cannot guarantee the amount of floating dust inside the device during actual use. This means that after each dust collection, it is necessary to wait for a period of time for the dust inside the device to stabilize before collection, which reduces the dust collection efficiency of the device. Therefore, the applicant proposes a pre-mixed concrete dust collection device.

[0023] like Figure 1-Figure 5As shown, this utility model provides a technical solution: a dust collection device for premixed concrete powder, including a frame 1, a dust removal mechanism 2 fixed to the inner wall of the frame 1, and a dust collection mechanism 3 fixed to the inner wall of the frame 1. The dust removal mechanism 2 is located on top of the dust collection mechanism 3, and the two are interconnected. The dust removal mechanism 2 includes a shell 201, and an electrostatic generator 202 is fixed to the outer wall of the shell 201. The output end of the electrostatic generator 202 passes through one side of the outer wall of the shell 201 and is electrically connected to a dust suction plate 203. Several scrapers 204 are in contact with the inner wall of the outer casing 203. A rotating rod 205 is fixed to one end of each scraper 204. A fan blade 206 is fixed to the top of the rotating rod 205, and a dust collection cover 207 is rotatably connected to the bottom of the rotating rod 205. A connecting pipe 208 is fixed to the top of the inner wall of the outer casing 201. The fan blade 206 is located inside the connecting pipe 208, and a dust discharge cover 209 is fixed to the bottom of the connecting pipe 208. The scrapers 204 are evenly distributed at equal angles around the center of the rotating rod 205. The dust discharge cover 209... The diameter of the air end orifice is larger than that of the exhaust end orifice. The top of the dust-collecting cover 207 is concave, and the rotating rod 205 is located at the center of the concave surface of the dust-collecting cover 207. The dust-collecting cover 207 does not contact the suction plate 203. Several openings are provided on the top outer wall of the outer shell 201. These openings are evenly distributed at equal angles around the center of the outer shell 201. The connecting pipe 208 is located inside these openings. A fixing frame 210 is fixed at the top opening of the outer shell 201, and a discharge pipe is fixed on the inner wall of the fixing frame 210. The air slab 211 has a dust inlet pipe 212 fixed at the feed inlet at the top of the outer shell 201. The top of the dust suction plate 203 has an arc groove ring 213 fixed. The connecting pipe 208 is located inside the arc groove ring 213. The height of the arc groove ring 213 inside the outer shell 201 is greater than the height of the connecting pipe 208 inside the outer shell 201, and the two do not contact each other. Several scrapers 204 have baffles 214 fixed on one side respectively. The bottom end of the baffle 214 is located between the dust suction plate 203 and the dust collection cover 207.

[0024] It should be noted that when the concrete is pre-mixed, the motor 303 of the starting device causes the rotating rod 205 to rotate. At the same time, the fan blade 206 also starts to rotate, causing the dust inlet pipe 212 to generate suction to absorb the concrete powder. The powder enters the connecting pipe 208 from the dust inlet pipe 212, and is then discharged from the dust discharge cover 209 under the action of the fan blade 206. Since the diameter of the inlet orifice of the dust discharge cover 209 is larger than the diameter of the outlet orifice, the powder can be concentrated and accelerated towards the dust inlet cover 207. Due to the concave curvature of the dust inlet cover 207, most of the powder will concentrate towards the dust suction plate 20. 3. The dust is blown away because the dust collection plate 203 generates static electricity under the action of the electrostatic generator 202, which allows most of the powder to be collected by the dust collection plate 203. The remaining powder will be blown away by the top of the dust collection plate 203 and gradually adsorbed by the dust collection plate 203. At this time, the dust on the dust collection plate 203 can be cleaned by the scraper 204. The cleaned powder will also fall into the dust removal mechanism 2 through the gap between the dust collection plate 203 and the dust collection cover 207 under the action of the baffle 214. The air inside the device will be discharged through the exhaust plate 211. The arc groove ring 213 can also change the floating direction of the remaining powder and reduce the blockage of the exhaust plate 211.

[0025] like Figure 5 As shown, this utility model provides a technical solution: a dust collection device for premixed concrete powder, including a dust collection mechanism 3. The dust collection mechanism 3 includes a fixed frame 301. An inner shell 302 is fixed at the center of the bottom of the inner wall of the fixed frame 301. The top of the inner shell 302 is fixed to the bottom of the dust collection cover 207 in the dust removal mechanism 2. A motor 303 is fixed at the bottom of the inner wall of the inner shell 302. The output end of the motor 303 passes through the center of the bottom of the dust collection cover 207 and is fixed to the bottom end of the rotating rod 205. A plurality of dust collection boxes 304 are slidably engaged at the bottom of the inner wall of the fixed frame 301. The plurality of dust collection boxes 304 are evenly distributed at equal angles around the center of the fixed frame 301. The inner shell 302 is located between the plurality of dust collection boxes 304.

[0026] It should be noted that when the concrete is pre-mixed, the dust removal mechanism 2 will adsorb the powder in the concrete and let it fall into the dust collection box 304. After the concrete is mixed, the dust collection box 304 can be opened to collect the powder.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood 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 present invention, and the scope of the present invention is limited by the accompanying embodiments and their equivalents.

Claims

1. A dust collection device for premixed concrete powder, comprising a frame (1), characterized in that: A dust removal mechanism (2) is fixed to the inner wall of the frame (1), and a dust collection mechanism (3) is fixed to the inner wall of the frame (1). The dust removal mechanism (2) is located on top of the dust collection mechanism (3), and the two are interconnected. The dust removal mechanism (2) includes a shell (201), and an electrostatic generator (202) is fixed to the outer wall of the shell (201). The output end of the electrostatic generator (202) passes through one side of the outer wall of the shell (201) and is electrically connected to a dust suction plate (203) for dust collection. The inner wall of the plate (203) is in contact with several scrapers (204), and one end of several scrapers (204) is fixed with a rotating rod (205). The top of the rotating rod (205) is fixed with a fan blade (206), and the bottom of the rotating rod (205) is rotatably connected with a dust collection cover (207). The top of the inner wall of the outer shell (201) is fixed with a connecting pipe (208), and the fan blade (206) is located inside the connecting pipe (208). The bottom of the connecting pipe (208) is fixed with a dust discharge cover (209).

2. The dust collection device for premixed concrete powder according to claim 1, characterized in that: Several scrapers (204) are evenly distributed at equal angles around the center of the rotating rod (205). The diameter of the orifice at the air end of the dust discharge cover (209) is larger than the diameter of the orifice at the exhaust end. The top of the dust collection cover (207) is concave. The rotating rod (205) is located at the center of the concave surface of the dust collection cover (207), and the dust collection cover (207) does not contact the dust collection plate (203).

3. The dust collection device for premixed concrete powder according to claim 1, characterized in that: The outer wall of the top of the outer shell (201) has several openings, which are evenly distributed at equal angles around the center of the outer shell (201). The connecting pipe (208) is located inside the openings. A fixing frame (210) is fixed at the top opening of the outer shell (201). An exhaust plate (211) is fixed on the inner wall of the fixing frame (210). A dust inlet pipe (212) is fixed at the feed inlet at the top of the outer shell (201).

4. The dust collection device for premixed concrete powder according to claim 1, characterized in that: The top of the dust collection plate (203) is fixed with an arc groove ring (213), and the connecting pipe (208) is located inside the arc groove ring (213). The height of the arc groove ring (213) inside the outer shell (201) is greater than the height of the connecting pipe (208) inside the outer shell (201), and the two do not contact each other.

5. A dust collection device for premixed concrete powder according to claim 1, characterized in that: A baffle (214) is fixed to one side of each of the scrapers (204), and the bottom end of the baffle (214) is located between the dust suction plate (203) and the dust collection cover (207).

6. The dust collection device for premixed concrete powder according to claim 1, characterized in that: The dust collection mechanism (3) includes a fixed frame (301), an inner shell (302) is fixed at the center of the bottom of the inner wall of the fixed frame (301), the top of the inner shell (302) is fixed to the bottom of the dust collection cover (207) in the dust removal mechanism (2), a motor (303) is fixed at the bottom of the inner wall of the inner shell (302), the output end of the motor (303) passes through the center of the bottom of the dust collection cover (207) and is fixed to the bottom of the rotating rod (205), and a number of dust collection boxes (304) are slidably engaged at the bottom of the inner wall of the fixed frame (301), the number of dust collection boxes (304) are evenly distributed at equal angles around the center of the fixed frame (301), and the inner shell (302) is located between the number of dust collection boxes (304).

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