A conveying device for a building concrete wallboard prefabricated component production line

Abstract

The application discloses a kind of building concrete wallboard prefabricated component production line conveying devices, it is related to the technical field of building concrete production, including dustproof frame and dust fall mechanism, the dustproof frame cover is located in the outside of conveying belt, for forming a relatively closed operation space.The utility integrates the conveying belt cleaning mechanism can effectively remove and recycle by scraping plate before adhering material dries and solidifies, not only reduces the generation of secondary dust from the root, but also avoids material waste.At the same time, reduce the accumulation of residual on the surface of conveying belt, help to maintain the stable operation of conveying belt, reduce wear and tear, prolong the service life of equipment, and reduce the strength and frequency of manual cleaning, thereby improving the overall operation efficiency and economy of production line.

Description

Technical Field

[0001] This invention relates to the technical field of building concrete production, and more particularly to a conveying device for a production line of precast concrete wall panel components for buildings. Background Technology

[0002] In the industrialized production of precast concrete wall panels for buildings, the conveying of concrete materials is a crucial link connecting the mixing and molding processes. Efficient and stable conveying devices are essential for ensuring production continuity and improving component quality. Currently, various design schemes for concrete conveying devices exist within the industry.

[0003] For example, Chinese patent document CN 218365516 U discloses a concrete conveying device and a precast concrete component production line. This device mainly includes a traveling mechanism, a vertically movable hopper, and a clamping structure for positioning. It controls the synchronous movement of the clamping structure through a drive structure, clamping and fixing the hopper when it is raised to a predetermined position, thereby achieving accurate positioning and limiting of the hopper, which helps ensure the normal operation of the equipment and the production progress.

[0004] However, in practical production applications, especially on precast component production lines using conveyor belts for continuous transport, the aforementioned and similar existing conveying devices still have significant limitations. During conveyor belt transport, concrete (especially wet concrete) often splashes and adheres to the conveyor belt surface due to vibration. After drying and solidifying, these residual materials are easily broken under continuous vibration, generating large amounts of dust, severely polluting the workshop environment, affecting worker health, and failing to meet the environmental protection requirements of modern green production. Furthermore, the adhered material not only wastes raw materials but also accelerates conveyor belt wear, affecting its operational stability and lifespan, while manual cleaning is inefficient and labor-intensive. Summary of the Invention

[0005] The purpose of this invention is to provide a conveying device for a precast concrete wall panel production line in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: including a dustproof frame and a dust suppression mechanism. The dustproof frame is installed outside the conveyor belt to form a relatively enclosed working space. Observation windows are provided on both sides of the dustproof frame for observation. The dust suppression mechanism is installed on one side of the dustproof frame and includes a dust suppression box for containing dust-laden air and performing wet treatment, a spray unit connected to the dust suppression box, and a filter element located at the air outlet of the dust suppression box.

[0007] A conveyor belt cleaning mechanism is installed on the return section or cleaning station of the conveyor belt to remove materials adhering to the surface of the conveyor belt.

[0008] A negative pressure dust collection system includes at least one dust collection hood located at a dust-generating point above a conveyor belt, an air pump connected to the dust collection hood, and a transmission pipe connecting the dust collection hood and a dust-suppressing mechanism. The dust-suppressing mechanism further includes a water tank, a water pump, and water pipes. The spray unit includes a water distribution pipe located inside the dust-suppressing box and multiple spray heads connected to the water distribution pipe. The water pump pumps water from the water tank to the water distribution pipe and forms water mist through the spray heads. An inclined guide plate is provided on one side of the interior of the dust-suppressing box, and a material guide pipe is provided at the bottom of the dust-suppressing box. The dust-suppressing box also has a rotating shaft driven by a drive motor, on which a stirring impeller is mounted. The filter element includes a filter screen and a fixing frame for fixing the filter screen. The fixing frame is mounted on the air outlet pipe by a detachable fixing post, which is inserted into a through hole at the top of the air outlet pipe.

[0009] In practical applications, the combination of sealed dustproof frames, negative pressure system for source extraction, and wet spraying for dust suppression achieves comprehensive and multi-layered control of dust generated during concrete vibration and conveying. This significantly reduces dust concentration in the work area, effectively improves the working environment for workers, and reduces pollution to the surrounding environment.

[0010] Furthermore, the conveyor belt cleaning mechanism includes a scraper, a guide frame, and a material conveying unit; the scraper is disposed close to the surface of the conveyor belt for scraping off materials; the guide frame is located below the scraper to receive the scraped materials; one end of the scraper is fixedly connected to a support frame, one end of the support frame is fixedly connected to the inside of the guide frame, and the bottom of the guide frame is fixedly connected to a support leg; the material conveying unit includes a conveying pipe, a propeller shaft disposed in the conveying pipe, and a motor for driving the propeller shaft to rotate; the transmission pipe in the negative pressure dust collection system includes a first transmission pipe connecting the dust collection hood and the inlet of the suction pump, and a second transmission pipe connecting the outlet of the suction pump and the inlet of the dust settling box;

[0011] In practical applications, the combination of sealed dustproof frames, negative pressure system for source extraction, and wet spraying for dust suppression achieves comprehensive and multi-layered control of dust generated during concrete vibration and conveying. This significantly reduces dust concentration in the work area, effectively improves the working environment for workers, and reduces pollution to the surrounding environment.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By combining sealed dustproof frames, negative pressure system for source extraction, and wet spraying for dust suppression, the dust generated during concrete vibration and conveying is controlled in a comprehensive and multi-layered manner. This significantly reduces the dust concentration in the work area, effectively improves the working environment for workers, and reduces pollution to the surrounding environment.

[0014] The integrated conveyor belt cleaning mechanism effectively removes and recycles adhering materials before they dry and harden, reducing secondary dust generation and material waste. Simultaneously, it reduces residue buildup on the conveyor belt surface, helping to maintain stable belt operation, reduce wear, extend equipment lifespan, and decrease the intensity and frequency of manual cleaning, thereby improving the overall operating efficiency and economy of the production line. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure proposed in this invention;

[0016] Figure 2 This is a schematic diagram of the dust suppression mechanism proposed in this invention;

[0017] Figure 3 This is a schematic diagram of the water distribution pipe structure proposed in this invention;

[0018] Figure 4 This is a schematic diagram of the filter element structure proposed in this invention;

[0019] Figure 5 This is a schematic diagram of the conveyor belt cleaning mechanism proposed in this invention;

[0020] Figure 6 This is a schematic diagram of the propeller shaft structure proposed in this invention.

[0021] In the diagram: 1. Dustproof frame; 2. Conveyor belt; 3. Dust suppression mechanism; 30. Dust suppression box; 31. Water tank; 32. Water pump; 33. Water pipe; 34. Air outlet pipe; 35. Filter element; 350. Filter screen; 351. Fixing frame; 352. Fixing column; 353. Through hole; 36. Inclined guide plate; 37. Drive motor; 38. Rotating shaft; 39. Agitator disc; 391. Material guide pipe; 392. Water distribution pipe; 393. Spray head; 4. Conveyor belt cleaning mechanism; 40. Material guide frame; 42. Material transfer pipe; 43. Material conveying pipe; 44. Discharge pipe; 45. Motor; 46. Propeller shaft; 47. Support leg; 48. Support frame; 49. Scraper; 5. Dust suction hood; 6. First transmission pipe; 7. Suction pump; 8. Second transmission pipe. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] Reference Figure 1-6 A conveying device for a precast concrete wall panel production line includes a dustproof frame and a dust suppression mechanism. The dustproof frame is installed outside the conveyor belt to form a relatively enclosed working space. Observation windows are provided on both sides of the dustproof frame for observation. The dust suppression mechanism is located on one side of the dustproof frame and includes a dust suppression box for containing dust-laden air and performing wet treatment, a spray unit connected to the dust suppression box, and a filter element located at the air outlet of the dust suppression box.

[0025] A conveyor belt cleaning mechanism is installed on the return section or cleaning station of the conveyor belt to remove materials adhering to the surface of the conveyor belt.

[0026] A negative pressure dust collection system includes at least one dust collection hood located at a dust-generating point above a conveyor belt, an air pump connected to the dust collection hood, and a transmission pipe connecting the dust collection hood and a dust-suppressing mechanism. The dust-suppressing mechanism further includes a water tank, a water pump, and water pipes. The spray unit includes a water distribution pipe located inside the dust-suppressing box and multiple spray heads connected to the water distribution pipe. The water pump is used to deliver water from the water tank to the water distribution pipe and form water mist through the spray heads. An inclined guide plate is provided on one side of the interior of the dust-suppressing box, and a material guide pipe is provided at the bottom of the dust-suppressing box. The dust-suppressing box also has a rotating shaft driven by a drive motor, and a stirring impeller is installed on the rotating shaft. The filter element includes a filter screen and a fixing frame for fixing the filter screen. The fixing frame is installed on the air outlet pipe by a detachable fixing post. The fixing post is inserted into the inside of a through hole, and the through hole is opened at the top of the air outlet pipe.

[0027] In practical applications, the mixed wet concrete is poured into a dedicated guide frame installed on conveyor belt 2. To promote concrete compaction and flow, the conveyor belt system integrates a vibration mechanism (not marked in the figure, which is a standard industry design), causing continuous vibration of conveyor belt 2 and the guide frame.

[0028] This vibration process inevitably causes wet concrete slurry to splash and adhere to the exposed surface of conveyor belt 2. This adhered slurry will gradually dry and harden during the conveying process. Subsequent continuous vibration will cause these dried concrete clumps to break and peel off, forming the main source of dust.

[0029] Therefore, the suction pump 7 is activated, creating a stable local negative pressure airflow below the dust collection hood 5 through the first transmission pipe 6 and the second transmission pipe 8, thereby sucking in the dust. The dust is then transported to the interior of the dust settling chamber 30 through the second transmission pipe 8. The cleaned air is discharged through the exhaust pipe 34, while residual moisture and larger particles in the air are further intercepted by the filter element 35. Simultaneously, the water tank 31 supplies water, which is pumped by the water pump 32 through the water pipe 33 and then transmitted to the water distribution pipe 392. Through multiple spray nozzles 393, a fine water mist curtain is formed inside the dust settling chamber 30. The dust generated by vibration, just as it is stirred up and before it spreads, comes into full contact with the atomized water droplets. The dust particles are wetted and become heavier, thus quickly settling under gravity, effectively suppressing the diffusion of dust in the air. The settled mud-water mixture is guided to the bottom of the dust settling box 30 via the inclined guide plate 36. At the same time, the drive motor 37 drives the rotating shaft 38 and the mixing impeller 39 to rotate, which can promote the mixing of concrete dust and discharge it from the guide pipe 391.

[0030] When the filter screen 350 in the filter element 35 needs to be replaced, pull out the fixing post 352 at the bottom of the fixing frame 351. The fixing post 352 is pulled out from the through hole 353, so that the filter screen 350 can be replaced and cleaned. When installation is required, simply insert the fixing post 352 into the through hole 353, which is located at the top of the air outlet duct 34.

[0031] Reference Figure 1-6 Furthermore, the conveyor belt cleaning mechanism 4 includes a scraper 49, a guide frame 40, and a material conveying unit; the scraper 49 is disposed close to the surface of the conveyor belt 2 and is used to scrape off materials; the guide frame 40 is located below the scraper 49 to receive the scraped materials, one end of the scraper 49 is fixedly connected to a support frame 48, one end of the support frame 48 is fixedly connected to the inside of the guide frame 40, and the bottom of the guide frame 40 is fixedly connected to a support leg 47. The material conveying unit includes a conveying pipe 43, a propeller shaft 46 disposed in the conveying pipe 43, and a motor 45 that drives the propeller shaft 46 to rotate. The transmission pipe in the negative pressure dust collection system includes a first transmission pipe 6 that connects the dust collection hood 5 to the inlet of the suction pump 7, and a second transmission pipe 8 that connects the outlet of the suction pump 7 to the inlet of the dust settling box 30.

[0032] In practical applications, after the material is conveyed, the conveyor belt cleaning mechanism 4 is responsible for cleaning the surface of the conveyor belt 2 and any possible residual material in the placement frame.

[0033] The scraper 49 scrapes off the adhering material, which falls into the guide frame 40. The motor 45 drives the propeller shaft 46 to rotate in the conveying pipe 43, and transports the scraped material to the recycling point through the discharge pipe 44, keeping the working interface clean and preventing the residual material from generating dust again after drying.

[0034] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A conveying device for a precast concrete wall panel production line, characterized in that, It includes a dustproof frame (1) and a dust suppression mechanism (3). The dustproof frame (1) is installed outside the conveyor belt (2) to form a relatively enclosed working space. Observation windows are provided on both sides of the dustproof frame (1) for observation. The dust suppression mechanism (3) is set on one side of the dustproof frame (1) and includes a dust suppression box (30) for containing dust-laden air and performing wet treatment, a spray unit connected to the dust suppression box (30), and a filter (35) located at the air outlet of the dust suppression box (30). A conveyor belt cleaning mechanism (4) is provided in the return section or cleaning station of the conveyor belt (2) to remove materials adhering to the surface of the conveyor belt (2); The negative pressure dust collection system includes at least one dust collection hood (5) located at a dust-generating point above the conveyor belt (2), an air pump (7) connected to the dust collection hood (5), and a transmission pipe connecting the dust collection hood (5) and the dust suppression mechanism (3).

2. The conveying device for a precast concrete wall panel production line according to claim 1, characterized in that: The dust suppression mechanism (3) also includes a water tank (31), a water pump (32) and a water pipe (33). The spray unit includes a water distribution pipe (392) located in the dust suppression box (30) and multiple spray nozzles (393) connected to the water distribution pipe (392). The water pump (32) is used to send water from the water tank (31) to the water distribution pipe (392) and form water mist through the spray nozzles (393).

3. The conveying device for a precast concrete wall panel production line according to claim 2, characterized in that: An inclined guide plate (36) is provided on one side of the interior of the dust settling box (30), a guide pipe (391) is provided at the bottom of the dust settling box (30), and a rotating shaft (38) driven by a drive motor (37) is also provided inside the dust settling box (30), and an agitator disc (39) is installed on the rotating shaft (38).

4. The conveying device for a precast concrete wall panel production line according to claim 2, characterized in that: The filter element (35) includes a filter screen (350) and a fixing frame (351) for fixing the filter screen (350). The fixing frame (351) is installed on the air outlet pipe (34) by a detachable fixing post (352). The fixing post (352) is inserted into the inside of a through hole (353), which is opened at the top of the air outlet pipe (34).

5. The conveying device for a precast concrete wall panel production line according to claim 1, characterized in that: The conveyor belt cleaning mechanism (4) includes a scraper (49), a guide frame (40), and a material conveying unit; the scraper (49) is set close to the surface of the conveyor belt (2) and is used to scrape off the material; the guide frame (40) is located below the scraper (49) to receive the scraped material, one end of the scraper (49) is fixedly connected to a support frame (48), one end of the support frame (48) is fixedly connected to the inside of the guide frame (40), and the bottom of the guide frame (40) is fixedly connected to a support leg (47).

6. A conveying device for a precast concrete wall panel production line according to claim 5, characterized in that: The material conveying unit includes a conveying pipe (43), a propeller shaft (46) disposed in the conveying pipe (43), and a motor (45) for driving the propeller shaft (46) to rotate.

7. A conveying device for a precast concrete wall panel production line according to claim 1, characterized in that: The transmission pipes in the negative pressure dust collection system include a first transmission pipe (6) connecting the dust collection hood (5) to the inlet of the suction pump (7), and a second transmission pipe (8) connecting the outlet of the suction pump (7) to the inlet of the dust settling box (30).

8. A conveying device for a precast concrete wall panel production line according to claim 6, characterized in that: The guide frame (40) is connected to the inlet of the conveying pipe (43) via the conveying pipe (42), and the outlet of the conveying pipe (43) is connected to the discharge pipe (44).

Images