Remote pneumatic joint control dust-free spraying equipment based on inorganic composite modified flexible thin spraying material

Abstract

The utility model discloses remote pneumatic joint control dust-free spraying equipment based on an inorganic composite modified flexible thin spraying material, which comprises a stock bin, an open groove is arranged at the top of the stock bin, a blocking box door is arranged in the open groove, a first cavity is arranged in the inner wall of the top of the stock bin, one end of the blocking box door extends into the first cavity and is in sliding connection with the first cavity, and the other end of the blocking box door is in sliding connection with the first cavity. An elastic telescopic rod is fixedly installed on the inner wall of the first cavity, and the output end of the elastic telescopic rod is fixedly connected with the extending-in end of the plugging box door, dust-free feeding can be effectively achieved, dynamic arch breaking, remote adjustment and control and negative pressure dust removal are achieved through structures such as a stirring rod, a water-air adjustment joint controller and a negative pressure dust collector, and dust removal efficiency is improved. By arranging the efficient spraying mixing generator and other structures, spraying integration is achieved, time is saved, the labor intensity of conventional cable moving is reduced, meanwhile, auxiliary specially-assigned management and control personnel can be reduced, the springback rate of spraying materials is greatly reduced through reasonable control over the spraying water adding amount, and the construction comprehensive efficiency is synchronously improved.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment, specifically to a remote pneumatically controlled dust-free spraying equipment based on inorganic composite modified flexible thin spraying material. Background Technology

[0002] Currently, ordinary shotcrete or mortar is mostly used to seal tunnels / roadways to solve the problems of surrounding rock weathering and anchor metal mesh corrosion. Especially in the mining field, with the acceleration of mining speed, the shortcomings of using ordinary dry shotcrete or mortar to seal the surrounding rock are becoming increasingly apparent: First, the construction process is complex, the labor intensity of workers is high, and the spraying speed is slow, especially for machine-excavated anchor mesh roadways, the spraying construction speed is far behind the pace of mechanized tunneling; second, shotcrete has a high rebound rate and high cost; third, the dust concentration is high, and the construction site environment is poor; fourth, shotcrete does not significantly improve the support strength of roadways, and in roadways affected by dynamic pressure, shotcrete is prone to peeling and falling off, affecting safety.

[0003] The selection of thin-film spraying materials is also particularly important. In view of the existing problems, inorganic composite modified flexible thin-film spraying materials are selected. The composition of inorganic composite modified flexible thin-film spraying materials by mass percentage is as follows: 20% to 38% cement, 20% to 30% inorganic filler, 15% to 25% inorganic film-forming agent, 5% to 12% inorganic toughening material, 10% to 22% quartz powder, 1% to 8% modified compound mixture, 0.1% to 0.3% inorganic activator, 2% to 8% toughening adhesive powder, and 0.01% to 0.05% water-reducing agent.

[0004] The cement used is high-grade Alite sulfoaluminate cement, grade 52.5, an inorganic gel material. The inorganic fillers are calcium oxide powder and wollastonite powder, with a weight ratio of calcium oxide:wollastonite = 1:0.7~2:1. The inorganic film-forming agent is a phosphate film-forming agent or a silicate film-forming agent, a mixture of phosphate and silicate film-forming agents, with a mass ratio of 1:(1~3). The inorganic film-forming agent has the advantages of tough film formation, durable wear resistance, and UV resistance. Because the dispersion prepared by dispersing it in water is slightly alkaline, it also has a strong antibacterial and antifungal effect. Modified compound admixture, that is, an admixture added to concrete to accelerate the hardening time and comprehensive strength of concrete, its main component is alumina clinker, that is, clinker made by burning bauxite, soda ash, and quicklime in proportion and then grinding it. The organic toughening material is one or a combination of mica powder, sepiolite, or talc powder. It has excellent toughening properties, good water and chemical resistance, fast drying, and convenient construction. The water-reducing agent is a polycarboxylate superplasticizer, which is ultra-dispersible and can prevent concrete slump loss without causing significant retardation. It exhibits high plasticizing effect at low dosage. The redispersible latex powder is ethylene vinyl acetate copolymer (EVA) powder, which has no adverse effect on the thixotropic and water-retaining properties of the slurry and effectively improves the plasticity and adhesion of the slurry. The inorganic activator is a highly active mixture after high-temperature calcination. It mainly consists of sodium silicate, calcium formate, silica fume, composite lithium, additives, mineral powder, zinc oxide, and other components that are compounded by high-temperature calcination. The redispersible latex powder is ethylene vinyl acetate copolymer (EVA) powder, which has no adverse effect on the thixotropic and water-retaining properties of the slurry and effectively improves the plasticity and adhesion of the slurry.

[0005] Therefore, this thin-spray material overcomes the shortcomings of traditional thin-spray materials, such as low efficiency, high energy consumption, and serious pollution. It can achieve rapid construction while reducing dust, and has a low rebound rate. The material is green and environmentally friendly. When the thin-spray material is sprayed onto the inner wall of the tunnel, it has high bonding strength and tensile strength, a smooth surface, and is not easy to crack. It can effectively prevent the weathering of the surrounding rock and support and beautify the tunnel.

[0006] For the aforementioned thin-film spraying material, existing spraying machines require dedicated personnel to manage the water, air, and power supply systems during construction. The synchronous movement of cables during on-site construction results in high labor intensity for workers. The addition of water to the front end of the spraying device relies entirely on the operator's subjective judgment, which is not reasonable. The loading and operation of the spraying machine can easily cause air and noise pollution, affecting the physical and mental health of the workers. Cables need to be connected during on-site use, and the movement of cables results in high labor intensity for on-site workers. Utility Model Content

[0007] To address the aforementioned problems, this utility model provides a remote pneumatically controlled dust-free spraying device based on inorganic composite modified flexible thin-film spraying materials.

[0008] This utility model is achieved through the following technical solution:

[0009] A remote pneumatically controlled dust-free spraying device based on inorganic composite modified flexible thin-film spraying material includes a hopper. The top of the hopper has a slot, within which a sealing door is installed. A first cavity is formed within the inner wall of the top of the hopper. One end of the sealing door extends into and slidably connects to the first cavity. An elastic telescopic rod is fixedly installed on the inner wall of the first cavity, with its output end fixedly connected to the end of the sealing door. A bag breaker, L-shaped with one triangular end, is fixedly installed at the bottom of the sealing door. A negative pressure vacuum cleaner is installed on the top of the hopper. A first pneumatic motor is fixedly installed on the inner top surface of the hopper, covered by a protective cover. A stirring rod is fixedly installed at the output end of the first pneumatic motor. A mounting frame is fixedly installed on the outer wall of the hopper. A mounting groove is provided at the bottom of the hopper, housing a rotatable agitator roller. A discharge pipe is fixedly installed at the bottom of the hopper, with its top end connected to... The installation slots are interconnected, and the bottom of the feeding pipe has an opening. A blowing box is fixedly installed at the bottom of the hopper. A water and air regulating controller is installed outside the hopper. A rotating uniform speed distributor is installed inside the feeding pipe. An air duct is fixedly installed on one side of the blowing box, and an air-material mixing pipe is fixedly installed on the other side of the blowing box. A connecting box is fixedly installed at one end of the air-material mixing pipe. A hollow ring is fixedly inserted into the connecting box. A high-efficiency spray mixing generator is fixedly installed on one side of the hollow ring. A central tube is installed inside the hollow ring. An inner tube is fixedly installed at one end of the central tube. The inner tube is located inside the high-efficiency spray mixing generator. Two connecting pipes are fixedly connected to the inner wall of the hollow ring. Each connecting pipe is fixedly connected to and communicates with the outer wall of the central tube. Several second nozzles are evenly fixedly installed in a ring on the inner wall of the high-efficiency spray mixing generator. Several first nozzles are evenly fixedly installed in a ring on the outer wall of the inner tube. A water pipe is fixedly installed at the top of the connecting box. The water pipe is connected to the hollow ring.

[0010] Preferably, the dust suction end of the negative pressure vacuum cleaner is connected to the top of the hopper via a pipe, the dust discharge end of the negative pressure vacuum cleaner is connected to the blow box via a pipe, the negative pressure output end of the water-air regulating controller is fixedly connected to and connected to the negative pressure input end of the negative pressure vacuum cleaner via a pipe, the water flow output end of the water-air regulating controller is fixedly connected to and connected to the water pipe via a pipe, and the airflow output end of the water-air regulating controller is fixedly connected to and connected to the air duct via a pipe.

[0011] Preferably, the inner wall of the high-efficiency spray mixing generator is uniformly provided with multiple water injection holes, several second nozzles are respectively connected to the corresponding water injection holes, each water injection hole is respectively connected to the hollow ring, and several first nozzles are respectively connected to the inner tube.

[0012] Preferably, a second pneumatic motor is fixedly installed on the side wall of the mounting frame, and a second central shaft is fixedly installed on the output end of the second pneumatic motor. One end of the second central shaft extends into the blowing box and the discharge pipe and is fixedly connected to the center of the side wall of the uniform speed distributor. A second pulley is fixedly sleeved on the second central shaft. A first central shaft is fixedly connected to the side wall of the crushing roller. One end of the first central shaft extends out of the hopper and is rotatably connected to it. A first pulley is fixedly sleeved on the first central shaft. The first pulley and the second pulley are driven by a belt.

[0013] Compared with existing technologies, the beneficial effects of this utility model are: it can effectively achieve dust-free material feeding, utilize structures such as stirring rods to achieve dynamic arch breaking, remote adjustment and control, and negative pressure dust removal, and achieve integrated spraying by setting up structures such as high-efficiency spray mixing generators, saving time. While reducing the labor intensity of conventional mobile cables, it can reduce the number of auxiliary personnel for management and control. By rationally controlling the amount of water added for spraying, it will significantly reduce the rebound rate of sprayed materials and simultaneously improve the overall construction efficiency. Attached Figure Description

[0014] Figure 1 This is a first-view perspective perspective view of the structure of this utility model;

[0015] Figure 2 This is a second-view perspective perspective view of the structure of this utility model;

[0016] Figure 3 This is the structure of the utility model Figure 2 A partially enlarged 3D view of the mounting bracket;

[0017] Figure 4 This is the structure of the utility model Figure 2 Enlarged 3D view of a medium- and high-efficiency spray mixing generator.

[0018] In the diagram: 1. Material hopper; 2. Slot; 3. Sealing box door; 4. First cavity; 5. Elastic telescopic rod; 6. Bag breaker; 7. Negative pressure vacuum cleaner; 8. First pneumatic motor; 9. Stirring rod; 10. Mounting frame; 11. Crushing roller; 12. Speed ​​distributor; 13. Water and air regulating controller; 14. Blowing box; 15. Air-material mixing pipe; 16. Connecting box; 17. High-efficiency spray mixing generator; 18. Water pipe; 19. Hollow ring; 20. Central pipe; 21. Connecting pipe; 22. Water injection hole; 23. Inner pipe; 24. First nozzle; 25. Second nozzle; 26. Mounting slot; 27. First central shaft; 28. First pulley; 29. ​​Belt; 30. Second pneumatic motor; 31. Second central shaft; 32. Discharge pipe; 33. Second pulley; 34. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0020] like Figure 1、 Figure 2 、 Figure 3 、 Figure 4As shown, a remote pneumatically controlled dust-free spraying device based on inorganic composite modified flexible thin-film spraying material includes a hopper 1. A slot 2 is provided on the top of the hopper 1, and a sealing door 3 is installed within the slot 2. A first cavity 4 is provided within the inner wall of the top of the hopper 1. One end of the sealing door 3 extends into and is slidably connected to the first cavity 4. An elastic telescopic rod 5 is fixedly installed on the inner wall of the first cavity 4, and the output end of the elastic telescopic rod 5 is fixedly connected to the end of the sealing door 3. A bag breaker 6 is fixedly installed at the bottom of the sealing door 3. The bag breaker 6 is L-shaped, with one end being triangular. A negative pressure vacuum cleaner 7 is installed on the top of the hopper 1. A first pneumatic motor 8 is fixedly installed on the inner top surface of the hopper 1, and the first pneumatic motor 8 is covered by a protective cover. A stirring rod 9 is fixedly installed at the output end of 8. A mounting bracket 10 is fixedly installed on the outer wall of silo 1. A mounting groove 27 is provided at the bottom of silo 1, and a rotating crushing roller 11 is installed in the mounting groove 27. A discharge pipe 33 is fixedly installed at the bottom of silo 1. The top end of the discharge pipe 33 communicates with the mounting groove 27, and the bottom of the discharge pipe 33 has an opening. A blowing box 14 is fixedly installed at the bottom of silo 1. A water-air regulating controller 13 is provided outside silo 1. A rotating uniform speed distributor 12 is installed inside the discharge pipe 33. An air duct 15 is fixedly installed on one side of the blowing box 14, and an air-material mixing pipe 16 is fixedly installed on the other side of the blowing box 14. A connecting box 17 is fixedly installed at one end of the air-material mixing pipe 16, and a hollow ring 20 is fixedly inserted into the connecting box 17. A high-efficiency spray mixing generator 18 is fixedly installed on one side of the hollow ring 20. A central tube 21 is installed inside the hollow ring 20, and an inner tube 24 is fixedly installed at one end of the central tube 21. The inner tube 24 is located inside the high-efficiency spray mixing generator 18. Two connecting pipes 22 are fixedly connected to the inner wall of the hollow ring 20. Each connecting pipe 22 is fixedly connected to and communicates with the outer wall of the central tube 21. Several second nozzles 26 are evenly fixedly installed in a ring on the inner wall of the high-efficiency spray mixing generator 18. Several first nozzles 25 are evenly fixedly installed in a ring on the outer wall of the inner tube 24. A water pipe 19 is fixedly installed at the top of the connecting box 17. When the water pipe 19 is connected to the hollow ring 20, the sealing box door 3 is pushed to the right, so that the elastic telescopic rod 5 is compressed by force, and then the material belt is released. The material is placed inside, and a bag-breaking device 6 is installed. When the bag comes into contact with the bag-breaking device 6, it will be torn. After the material enters, the torn bag is removed. A negative pressure dust collector 7 is installed to absorb as much dust as possible, and then blow it into the blowing box 14 to mix with the air. A stirring rod 9 is installed to initially break up the arches of the material, so that the material can be dispersed and mixed evenly. Then, the crushing roller 11 prevents the material from clumping. After the uniform speed distributor 12 evenly distributes the material, it is conveyed by air to the air-material mixing pipe 16 and the connecting box 17. The water pipe 19 is responsible for adding water. Then, through several corresponding first nozzles 25 and second nozzles 26, the material is fully mixed with water under the action of air. It is then sprayed out through the opening set on one side of the high-efficiency spray mixing generator 18, thus completing the work.

[0021] The dust suction end of the negative pressure vacuum cleaner 7 is connected to the top of the hopper 1 through a pipe, and the dust discharge end of the negative pressure vacuum cleaner 7 is connected to the blowing box 14 through a pipe. The negative pressure output end of the water-air regulating controller 13 is fixedly connected to the negative pressure input end of the negative pressure vacuum cleaner 7 through a pipe. The water flow output end of the water-air regulating controller 13 is fixedly connected to the water pipe 19 through a pipe. The airflow output end of the water-air regulating controller 13 is fixedly connected to the air duct 15 through a pipe. The water-air regulating controller 13 is used to regulate the wind force and water flow.

[0022] The inner wall of the high-efficiency spray mixing generator 18 is uniformly provided with multiple water injection holes 23. Several second nozzles 26 are respectively connected to the corresponding water injection holes 23. Each water injection hole 23 is connected to the hollow ring 20. Several first nozzles 25 are respectively connected to the inner tube 24. The first nozzles 25 and the second nozzles 26 are respectively arranged opposite each other, and the angle between them is 45 degrees. This satisfies the concept of dual reverse porous microparticle water addition, giving full play to the high-speed material conveying of wind and the collision of high-density particles to achieve efficient water addition and mixing of powder, so as to achieve the purpose of dust-free operation.

[0023] A second pneumatic motor 31 is fixedly installed on the side wall of the mounting frame 10. A second central shaft 32 is fixedly installed on the output end of the second pneumatic motor 31. One end of the second central shaft 32 extends into the blowing box 14 and the discharge pipe 33 and is fixedly connected to the center of the side wall of the uniform speed distributor 12. A second pulley 34 is fixedly sleeved on the second central shaft 32. A first central shaft 28 is fixedly connected to the side wall of the crushing roller 11. One end of the first central shaft 28 extends out of the hopper 1 and is rotatably connected to it. A first pulley 29 is fixedly sleeved on the first central shaft 28. The first pulley 29 and the second pulley 34 are driven by a belt 30. The second pneumatic motor 31 drives the second central shaft 32 to start rotating, thereby driving the uniform speed distributor 12 to start rotating. With the cooperation of the discharge pipe 33, uniform material discharge is achieved. At the same time, the first pulley 29 and the second pulley 34 are driven by the belt 30 to drive the crushing roller 11 to rotate, avoiding material agglomeration and ensuring the stability of the material conveyed by the pneumatic conveyor.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A long-range pneumatic joint control dust-free spraying equipment based on inorganic composite modified flexible thin spraying material, comprising a stock bin (1), characterized in that: The top of the bunker (1) is provided with a slot (2), the slot (2) is provided with a blocking box door (3), the inner wall of the top of the bunker (1) is provided with a first cavity (4), one end of the blocking box door (3) extends into the first cavity (4) and is in sliding connection with it, the inner wall of the first cavity (4) is fixedly installed with an elastic expansion rod (5), the output end of the elastic expansion rod (5) is fixedly connected with the extending end of the blocking box door (3), the bottom end of the blocking box door (3) is fixedly installed with a bag breaker (6), the bag breaker (6) is in the shape of L, one end of the bag breaker (6) is in the shape of triangle, the top of the bunker (1) is provided with a negative pressure dust collector (7), the inner top surface of the bunker (1) is fixedly installed with a first pneumatic motor (8), the first pneumatic motor (8) is covered with a protective cover, the output end of the first pneumatic motor (8) is fixedly installed with a stirring rod (9), the outer wall of the bunker (1) is fixedly installed with a mounting bracket (10), the bottom of the bunker (1) is provided with a mounting groove (27), the mounting groove (27) is installed with a rotatable crushing roller (11), the bottom of the bunker (1) is fixedly installed with a discharge pipe (33), the top end of the discharge pipe (33) is communicated with the mounting groove (27), the bottom of the discharge pipe (33) is provided with an opening, the bottom of the bunker (1) is fixedly installed with a blowing box (14), the outer wall of the bunker (1) is provided with a water vapor adjusting interlocking controller (13), the discharge pipe (33) is installed with a rotatable uniform speed distributor (12), one side of the blowing box (14) is fixedly installed with an air pipe (15), the other side of the blowing box (14) is fixedly installed with a wind material mixing pipe (16), one end of the wind material mixing pipe (16) is fixedly installed with a connecting box (17), the connecting box (17) is fixedly inserted with a hollow ring (20), one side of the hollow ring (20) is fixedly installed with a high-efficiency spraying mixing generator (18), the hollow ring (20) is provided with a center pipe (21), one end of the center pipe (21) is fixedly installed with an inner pipe (24), the inner pipe (24) is arranged in the high-efficiency spraying mixing generator (18), the inner wall of the hollow ring (20) is fixedly connected with two connecting pipes (22), each connecting pipe (22) is fixedly connected with the outer wall of the center pipe (21) and communicated, a plurality of second spray heads (26) are fixedly installed on the inner wall of the high-efficiency spraying mixing generator (18) in a ring shape, a plurality of first spray heads (25) are fixedly installed on the outer wall of the inner pipe (24) in a ring shape, the top end of the connecting box (17) is fixedly installed with a water pipe (19), the water pipe (19) is communicated with the hollow ring (20).

2. A remote pneumatic co-controlled dust-free spray painting equipment based on inorganic composite modified flexible thin spray material according to claim 1, characterized in that: The dust suction end of the negative pressure cleaner (7) is communicated with the top of the bin (1) through a pipeline, the dust discharge end of the negative pressure cleaner (7) is communicated with the blowing box (14) through a pipeline, the negative pressure output end of the water-gas adjusting joint controller (13) is fixedly connected with and communicated with the negative pressure input end of the negative pressure cleaner (7) through a pipeline, the water flow output end of the water-gas adjusting joint controller (13) is fixedly connected with and communicated with the water pipe (19) through a pipeline, and the gas flow output end of the water-gas adjusting joint controller (13) is fixedly connected with and communicated with the air pipe (15) through a pipeline.

3. A remote pneumatic co-controlled dust-free spray painting equipment based on inorganic composite modified flexible thin spray material according to claim 1, characterized in that: The inner wall of the high-efficiency spraying mixing generator (18) is uniformly provided with a plurality of water injection holes (23), a plurality of second nozzles (26) are respectively communicated with corresponding water injection holes (23), each water injection hole (23) is respectively communicated with the hollow ring (20), and a plurality of first nozzles (25) are respectively communicated with the inner tube (24).

4. The remote pneumatic co-controlled dust-free spray painting equipment based on the inorganic composite modified flexible thin spray material according to claim 1, characterized in that: The second pneumatic motor (31) is fixedly installed on the side wall of the mounting frame (10), the output end of the second pneumatic motor (31) is fixedly installed with the second central shaft (32), one end of the second central shaft (32) extends into the blowing box (14) and the discharging pipe (33) and is fixedly connected with the central part of the side wall of the uniform-speed distributor (12), the second pulley (34) is fixedly sleeved on the second central shaft (32), the first central shaft (28) is fixedly connected on the side wall of the crushing roller (11), one end of the first central shaft (28) penetrates out of the bin (1) and is rotatably connected with the bin (1), the first pulley (29) is fixedly sleeved on the first central shaft (28), and the first pulley (29) and the second pulley (34) are driven through the belt (30).

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