Water-gas mixed spraying device

Abstract

The utility model provides a water-air mixing spraying device, which comprises a belt sweeper and a wide belt, the belt sweeper comprises a support frame, and an upper compression roller, a lower cleaning roller, an air supply disc and a water supply disc which are positioned on the support frame, the upper compression roller and the lower cleaning roller are respectively positioned on the inner side and the outer side of the wide belt, and the water supply disc is positioned on the support frame. The upper pressing roller and the lower cleaning roller elastically extrude the wide belt, and the peripheral wall of the lower cleaning roller is fixedly sleeved with a spiral blade. According to the wide belt cleaning device, the lower cleaning roller is arranged, then the spiral hob is arranged on the lower cleaning roller, the upper pressing roller is arranged, and the spiral hob abuts against the lower portion of the wide belt under the action of the upper pressing roller, so that when the wide belt runs, the spiral hob can be used for rolling the outer side wall of the wide belt; compared with a scraping and brushing mode in the prior art, the rolling cleaning mode has the advantages that the service life of the spiral hob is prolonged, the cleaning noise is low, and the problem that the wide belt is abraded is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of belt cleaners, in particular to a water-gas mixed spraying device. Background Art

[0002] Conveyor belts are prone to material adhesion when transporting materials (such as powders, granules, and fragments), necessitating the use of belt cleaners. Existing belt cleaners typically use a scraper to remove adhesive and wear-resistant materials from belts. Directly scraping the dry belt with the cleaner blade is ineffective, and material buildup on the cleaner blades can accelerate blade wear, impacting cleaning effectiveness and service life.

[0003] The utility model, with publication number CN217172163U, proposes a belt conveyor water-gas mixed spray cleaner, comprising a mixed spray device and an adjustable cleaner mounted on the belt. The mixed spray device is located on one side of the adjustable cleaner, which includes a main beam, a mounting frame, and several blades. The mixed spray device includes an air inlet pipe, a water inlet pipe, and several nozzles, which are mounted on the water and air inlet pipes and aimed at the belt surface. This utility model is more adaptable to different materials and working conditions. First, the water-gas spray device humidifies and purges the material on the belt surface, while simultaneously purging the blades of the adjustable cleaner, effectively reducing material accumulation on the blades, improving cleaning effectiveness, and extending blade life.

[0004] However, the above-mentioned existing technology still has the following shortcomings when used: 1. The blade is in direct contact with the belt, and friction (dry friction, wet friction or dry-wet friction) will be formed between the blade and the edge of the blade when the belt is running. This friction method will accelerate the wear of the blade, affect the scraping effect, and the noise is loud and it is easy to damage the belt; 2. The air inlet pipe and the water inlet pipe are arranged separately, which has the disadvantage of occupying a large space and easily poses a hidden danger of interference to the belt conveyor.

[0005] To this end, the utility model provides a water-gas mixed spraying device. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a water-gas mixing spray device to solve the problems raised in the above-mentioned background technology. The present invention has the advantages of extending the service life of the blade and cleaning the adhesives on the wide belt more smoothly and thoroughly. Moreover, the integrated setting of air jet and water spray greatly reduces the space occupied by the device and reduces the occurrence rate of interference hazards.

[0007] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a water-gas mixing spray device, including a belt cleaner and a wide belt, the belt cleaner including a support frame and an upper pressure roller, a lower cleaning roller, an air supply plate and a water supply plate located on the support frame, the upper pressure roller and the lower cleaning roller are respectively located on the inner and outer sides of the wide belt, the upper pressure roller and the lower cleaning roller elastically squeeze the wide belt, the outer peripheral wall of the lower cleaning roller is fixedly sleeved with a spiral blade, the outer peripheral wall of the lower cleaning roller is provided with axially arranged nozzles, the axially arranged nozzles are also uniformly distributed circumferentially, the air supply plate and the water supply plate are respectively arranged at both ends of the lower cleaning roller and air and water are respectively supplied to the nozzles through the lower cleaning roller.

[0008] Furthermore, the support frame is provided with a mounting plate and a door-shaped frame fixedly arranged on the top of the mounting plate. The top of the door-shaped frame is elastically and slidably connected to the upper roller frame, and the bottom of the upper roller frame is rotatably connected to the upper pressure roller.

[0009] Furthermore, a rotating shaft is provided through the middle of the lower cleaning roller, and the two ends of the rotating shaft are rotatably connected to the two sides of the portal frame. A circumferentially uniformly distributed cavity is provided in the lower cleaning roller, and the circumferentially uniformly distributed cavity and the circumferentially uniformly distributed nozzles are correspondingly connected. The two ends of the lower cleaning roller are respectively provided with air channels and water channels connecting the cavities.

[0010] Furthermore, the air supply plate and the water supply plate are respectively fixedly arranged on both sides of the door frame and are coaxial with the rotating shaft. The air supply plate and the water supply plate are respectively rotatably connected to the two ends of the lower cleaning roller. The outer peripheral walls of the air supply plate and the water supply plate are respectively fixedly connected with the air inlet pipe and the water inlet pipe. An exhaust port and a drain port are respectively provided on one side of the air supply plate and the water supply plate, and the exhaust port and the drain port are respectively connected to the exhaust port and the drain port.

[0011] Furthermore, both ends of the lower cleaning roller are fixedly connected to annular docking platforms, and the air channel and water channel are respectively located on the end faces of adjacent annular docking platforms. One side of the air supply plate and the water supply plate are welded with an inner seal sleeve mounted inside the annular docking platform and an outer seal sleeve mounted outside the annular docking platform. The inner seal sleeve and the outer seal sleeve are rotatably matched with the annular docking platform and a seal is provided at the rotating connection. The exhaust port and the drain port are arranged close to the wide belt and the mouths of the two are approximately in contact with the end faces of adjacent annular docking platforms.

[0012] Furthermore, a guide shaft located at the top is welded on the upper roller frame, and the guide shaft passes through the middle of the portal frame and the two are connected by sliding up and down. A support spring located below the top of the portal frame is sleeved on the guide shaft.

[0013] Furthermore, a mounting hole close to the side is formed through the upper end surface of the mounting plate.

[0014] The beneficial effects of the utility model are as follows:

[0015] In the utility model, a lower cleaning roller is provided, and then a spiral hob is provided on the lower cleaning roller, and an upper pressure roller is provided. Under the action of the upper pressure roller, the spiral hob is pressed against the bottom of the wide belt. When the wide belt is running, the spiral hob can be used to roll the outer wall of the wide belt. Compared with the scraping method in the prior art, this rolling cleaning method has the advantage of extending the service life of the spiral hob, and also has low cleaning noise and will not cause the problem of wear of the wide belt.

[0016] In the utility model, an air supply plate, a water supply plate, an air channel, a water channel, a cavity and a nozzle for air and water spraying are arranged on the lower cleaning roller, so that the lower cleaning roller can spray air and water at the same time during the rolling process. This integrated setting greatly reduces the space occupied by the device and eliminates potential interference risks.

[0017] In the utility model, the lower cleaning roller is driven by the running wide belt to roll. At the same time, the lower cleaning roller can directly spray, jet or water-gas mixed spray on the rolled adhesion when rolling. This setting can clean the adhesion on the belt more thoroughly, and can also effectively prevent adhesion from accumulating on the spiral blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the water-gas mixing spray device of the utility model;

[0019] Figure 2 This is a schematic diagram of the water-gas mixing spray device of the utility model without the wide belt;

[0020] Figure 3 This is a cross-sectional view of the cooperation between the water supply plate, the air supply plate and the lower cleaning roller of the water-air mixing spray device of the present invention;

[0021] Figure 4 This is a cross-sectional view of the lower cleaning roller of the water-gas mixing spray device of the present invention.

[0022] In the figure: 1. Belt cleaner; 11. Support frame; 111. Mounting plate; 1111. Mounting hole; 112. Door frame; 1121. Upper roller frame; 11211. Guide shaft; 12. Upper pressure roller; 13. Lower cleaning roller; 131. Spiral blade; 132. Nozzle; 133. Cavity; 134. Airway; 135. Waterway; 136. Annular docking station; 137. Rotating shaft; 14. Air supply plate; 141. Air inlet pipe; 142. Exhaust port; 15. Water supply plate; 151. Water inlet pipe; 152. Drain port; 2. Wide belt; 3. Inner envelope; 4. Outer envelope; 5. Seal; 6. Support spring. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] See also Figures 1 to 4 The utility model provides a technical solution: a water-gas mixed spray device, including a belt cleaner 1 and a wide belt 2. The outer peripheral wall of the wide belt 2 is the surface in contact with the material, and this surface is easy to form a hard and wear-resistant adhesive. The function of the belt cleaner 1 in the prior art is to scrape and clean the outer peripheral wall of the belt.

[0025] In this technical solution, the belt cleaner 1 includes a support frame 11 and an upper pressure roller 12, a lower cleaning roller 13, an air supply plate 14 and a water supply plate 15 located on the support frame 11. The upper pressure roller 12 and the lower cleaning roller 13 are respectively located on the inner and outer sides of the wide belt 2. The upper pressure roller 12 and the lower cleaning roller 13 elastically squeeze the wide belt 2. In the specific implementation, it is preferred that a mounting plate 111 and a door frame 112 fixedly arranged on the top of the mounting plate 111 are provided on the support frame 11. The top of the door frame 112 elastically moves up and down. An upper roller frame 1121 is slidably connected, and the bottom of the upper roller frame 1121 is rotatably connected to the upper pressure roller 12, wherein a guide shaft 11211 located at the top is welded on the upper roller frame 1121, and the guide shaft 11211 passes through the middle of the door frame 112 and the two are slidably connected up and down, and a support spring 6 located below the top of the door frame 112 is sleeved on the guide shaft 11211, and the support spring 6 applies a downward elastic thrust to the upper roller frame 1121, so that the wide belt 2 squeezes the lower cleaning roller 13.

[0026] The outer circumference of the lower cleaning roller 13 is fixedly sleeved with a spiral blade 131. When the lower cleaning roller 13 squeezes the wide belt 2, the edge of the spiral blade 131 presses against the outer circumference of the wide belt 2, causing the adhesive to crack. The wide belt 2 rotates, driving the spiral blade 131 to rotate, which in turn crushes the adhesive on the outer circumference of the wide belt 2. This arrangement not only reduces the resistance of the spiral blade 131 and significantly reduces wear on the spiral blade 131 and the wide belt 2, but also provides a quieter operation.

[0027] Furthermore, axially arranged nozzles 132 are provided on the outer peripheral wall of the lower cleaning roller 13. The nozzles 132 are located in each pitch gap of the spiral blade 131. The nozzles 132 can spray air, water or a mixture of water and air. The axially arranged nozzles 132 are also evenly distributed circumferentially. When the lower cleaning roller 13 rotates, the circumferentially evenly distributed nozzles 132 can extend the effective spraying time for the wide belt 2. Since the nozzles 132 are located between the spiral blades 131, they can also effectively clean up the adhesions accumulated on the spiral blades 131, which has the advantage of self-cleaning of the spiral blades 131.

[0028] Among them, the air supply plate 14 and the water supply plate 15 are hollow structures. The air supply plate 14 and the water supply plate 15 are respectively arranged at both ends of the lower cleaning roller 13 and supply air and water to the nozzle 132 through the lower cleaning roller 13 respectively. The air supply plate 14 and the water supply plate 15 are turnover components that transmit gas and water to the nozzle 132.

[0029] Specifically, a rotating shaft 137 is provided through the middle of the lower cleaning roller 13, and the two ends of the rotating shaft 137 are rotatably connected to the two sides of the portal frame 112. A circumferentially uniformly distributed cavity 133 is provided in the lower cleaning roller 13, and the two ends of the cavity 133 extend to a position close to the two ends of the lower cleaning roller 13. The circumferentially uniformly distributed cavity 133 and the circumferentially uniformly distributed nozzles 132 are correspondingly connected, that is, a cavity 133 is connected to a row of nozzles 132, and an air channel 134 and a water channel 135 connected to the cavity 133 are respectively provided at both ends of the lower cleaning roller 13. When air is taken into the air channel 134, the nozzle 132 sprays jets outward, and when water is taken into the water channel 135, the nozzle 132 sprays water outward.

[0030] Furthermore, the air supply disc 14 and the water supply disc 15 are fixedly arranged on both sides of the gantry 112 and are coaxial with the rotating shaft 137. The air supply disc 14 and the water supply disc 15 are respectively connected to the two ends of the lower cleaning roller 13 for rotational cooperation. The outer peripheral walls of the air supply disc 14 and the water supply disc 15 are respectively fixedly connected with an air inlet pipe 141 and a water inlet pipe 151. When in use, the air inlet pipe 141 is connected to the external air pipe through a pipeline, and the water inlet pipe 151 is connected to the external water supply pipe through a pipeline. An exhaust port 142 and a drain port 152 are respectively provided on one side of the air supply disc 14 and the water supply disc 15. The exhaust port 142 and the drain port 152 are respectively connected to the cavity 133 through the air channel 134 and the water channel 135. When the lower cleaning roller 13 rotates, the air supply disc 14 and the water supply disc 15 transmit gas and water into the cavity 133 through the air channel 134 and the water channel 135, respectively.

[0031] In this embodiment, both ends of the lower cleaning roller 13 are fixedly connected to an annular docking platform 136, and the air channel 134 and the water channel 135 are respectively located on the end faces of the adjacent annular docking platforms 136. One side of the air supply plate 14 and the water supply plate 15 are welded with an inner seal 3 sleeved inside the annular docking platform 136 and an outer seal 4 sleeved outside the annular docking platform 136. The exhaust port 142 and the drain port 152 are located in the annular cavity between the corresponding inner seal 3 and outer seal 4. The inner seal 3 and the outer seal 4 are rotatably matched with the annular docking platform 136 and a seal 5 is provided at the rotating connection. The function of the seal 5 is to prevent water leakage when the inner seal 3 and the outer seal 4 rotate with the annular docking platform 136. The seal 5 can be a rubber sealing sleeve or a rubber sealing ring. The exhaust port 142 and the drain port 152 are arranged close to the wide belt 2 and the mouths of the two are approximately in contact with the end face of the adjacent annular docking platform 136. The purpose of this arrangement is that when the lower cleaning roller 13 is rotating, the spray volume of the nozzle 132 facing the wide belt 2 is always at the maximum state, and the spray volume of other nozzles 132 not facing the wide belt 2 is small or even non-existent. This arrangement has the advantages of saving air and water.

[0032] In this embodiment, a mounting hole 1111 is formed through the upper end surface of the mounting plate 111 and is close to the side. When in use, the mounting hole 1111 of the mounting plate 111 and the bolts are installed on the frame of the belt conveyor.

[0033] Working principle: When a hard adhesive adheres to the wide belt 2, the external ventilation pipe is first controlled to supply gas to the air supply disk 14. When the wide belt 2 is running, the edge of the spiral blade 131 will be driven to roll the adhesive, causing the adhesive to crack and fall off. A small amount of residual debris or powder will be sprayed away by the gas sprayed from the nozzle 132. When the adhesive on the wide belt 2 is relatively hard, the supply of gas to the air supply disk 14 is stopped, and then water is supplied to the water supply disk 15. The water is sprayed through the nozzle 132, which moistens the adhesive on the wide belt 2, making it easier for the spiral blade 131 to roll and crack the adhesive. When debris-like adhesives are formed on the spiral blade 131 and the wide belt 2, gas and water are simultaneously supplied to the air supply disk 14 and the water supply disk 15. At this time, the nozzle 132 will spray a water-gas mixture, which can clean the wide belt 2 and the spiral blade 131.

[0034] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A water-gas mixing spraying device, comprising a belt cleaner (1) and a wide belt (2), characterized in that: The belt cleaner (1) comprises a support frame (11) and an upper pressure roller (12), a lower cleaning roller (13), an air supply plate (14) and a water supply plate (15) located on the support frame (11). The upper pressure roller (12) and the lower cleaning roller (13) are respectively located on the inner side and the outer side of the wide belt (2). The upper pressure roller (12) and the lower cleaning roller (13) elastically squeeze the wide belt (2). The outer peripheral wall of the lower cleaning roller (13) is fixedly sleeved with a spiral blade (131). The outer peripheral wall of the lower cleaning roller (13) is provided with axially arranged nozzles (132). The axially arranged nozzles (132) are also uniformly distributed in the circumferential direction. The air supply plate (14) and the water supply plate (15) are respectively arranged at both ends of the lower cleaning roller (13) and supply air and water to the nozzles (132) through the lower cleaning roller (13).

2. The water-gas mixing spray device according to claim 1, characterized in that: The support frame (11) is provided with a mounting plate (111) and a door-shaped frame (112) fixedly arranged on the top of the mounting plate (111); the top of the door-shaped frame (112) is elastically slidably connected to an upper roller frame (1121) in an upward and downward manner; and the bottom of the upper roller frame (1121) is rotatably connected to the upper pressure roller (12).

3. The water-gas mixing spray device according to claim 2, characterized in that: A rotating shaft (137) is provided through the middle of the lower cleaning roller (13), and both ends of the rotating shaft (137) are rotatably connected to both sides of the door frame (112). A circumferentially uniformly distributed cavity (133) is provided in the lower cleaning roller (13), and the circumferentially uniformly distributed cavity (133) and the circumferentially uniformly distributed nozzles (132) are correspondingly connected. An air channel (134) and a water channel (135) communicating with the cavity (133) are respectively provided at both ends of the lower cleaning roller (13).

4. The water-gas mixing spray device according to claim 3, characterized in that: The air supply disc (14) and the water supply disc (15) are respectively fixedly arranged on both sides of the door frame (112) and are coaxial with the rotating shaft (137). The air supply disc (14) and the water supply disc (15) are respectively rotatably connected to the two ends of the lower cleaning roller (13). The outer peripheral walls of the air supply disc (14) and the water supply disc (15) are respectively fixedly connected with an air inlet pipe (141) and a water inlet pipe (151). One side of the air supply disc (14) and the water supply disc (15) is respectively provided with an exhaust port (142) and a drain port (152). The exhaust port (142) and the drain port (152) are respectively communicated with the exhaust port (142) and the drain port (152).

5. The water-gas mixing spray device according to claim 4, characterized in that: Both ends of the lower cleaning roller (13) are fixedly connected to an annular docking platform (136), and the air channel (134) and the water channel (135) are respectively located on the end faces of the adjacent annular docking platform (136). One side of the air supply plate (14) and the water supply plate (15) are welded with an inner seal (3) sleeved inside the annular docking platform (136) and an outer seal (4) sleeved outside the annular docking platform (136). The inner seal (3) and the outer seal (4) are rotatably matched with the annular docking platform (136) and a sealing member (5) is provided at the rotating connection. The exhaust port (142) and the drain port (152) are arranged close to the wide belt (2) and their mouths are approximately in contact with the end faces of the adjacent annular docking platform (136).

6. The water-gas mixing spray device according to claim 2, characterized in that: A guide shaft (11211) located at the top is welded to the upper roller frame (1121), the guide shaft (11211) passes through the middle of the portal frame (112) and the two are connected in an upward and downward sliding manner, and a support spring (6) located below the top of the portal frame (112) is sleeved on the guide shaft (11211).

7. The water-gas mixing spray device according to claim 2, characterized in that: The upper end surface of the mounting plate (111) is provided with a mounting hole (1111) close to the side.

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