Electrostatic atomization pulp shooting machine

Abstract

The utility model discloses an electrostatic atomization pulp shooting machine, which belongs to the technical field of concrete pulp shooting equipment and comprises an electrostatic atomization mechanism, a gravel feeding mechanism and a spray gun. The electrostatic atomization mechanism comprises an electrostatic atomization device frame, a high-voltage electrostatic generator is arranged in the electrostatic atomization device frame, a cement paste box is arranged on the upper portion of the electrostatic atomization device frame, a cement paste stirrer is arranged in the cement paste box, and one end of the cement paste box is connected with the output end of a gas-liquid booster pump; the gravel feeding mechanism comprises an air compressor, the output end of the air compressor is connected with one end of a gravel box, a gravel hopper is arranged at the upper end of the gravel box, a gravel filter sieve is arranged in the gravel hopper, and a gravel feeding baffle is arranged at the lower end of the gravel filter sieve. According to the spraying machine, the problems of uneven spraying and unobvious atomization effect of the spraying machine can be solved, uniform spraying is guaranteed, the atomization effect is obvious, and then the working efficiency is improved; the coating can be prevented from being solidified in the cavity, and the project progress is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to concrete spraying equipment technical field, concretely relates to a electrostatic atomization spraying machine. BACKGROUND

[0002] The statements in this section merely provide background information related to the utility model and do not necessarily constitute prior art.

[0003] The spraying machine is a kind of efficient spraying equipment, it has the characteristics such as low operation difficulty, spraying efficiency, economic benefit etc. It is widely used in wet spraying concrete construction operation such as mine, tunnel, subway, water conservancy project, underground engineering and slope protection, and also applied to building repair, crack repair, filling cavity and reinforcing wall etc. work. Conventional spraying machine spraying is uneven, and the atomization effect of concrete is not obvious, and dust is inevitably splashed in the spraying process, which endangers the health of workers, and the problems of spraying uniformity and obvious atomization effect in the spraying process need to be improved. Atomization is the main working process of spraying machine, and it plays a crucial role in improving the problem of uneven spraying and obvious atomization effect of spraying machine, therefore optimizing atomization structure is an important method to improve the performance of spraying machine.

[0004] A dustproof and noise-reducing dry spraying machine is disclosed in the publication CN221120000U, the dustproof feeding device has a hopper cover, a dust cover and a material containing box, the top of the hopper cover is provided with a feeding port, the dust cover is fixed on the top surface of the hopper cover to surround the feeding port, the material containing box is installed in the dust cover, the bottom of the material containing box is provided with a discharge port, a blade is arranged below the material containing box, the cutting edge of the blade extends into the discharge port of the material containing box, a driving device is installed on the hopper cover, the driving end of the driving device is connected with the material containing box, and the hopper cover is connected with the inlet end of the feeding hopper. When the dry spraying machine works, the material package is placed in the material containing box, and the blade cuts the material package during the driving of the driving device to drive the material containing box into the dust cover, so that the dry material in the material package can enter the feeding hopper, and the upper port of the material containing box is blocked by the dust cover, then the spraying machine is started to work, and the inlet end of the feeding hopper is closed during the work of the spraying machine, so that dust flying can be avoided.

[0005] Although the above technical solution solves the corresponding technical problem, the above technical solution still has the following defects: the above technical solution cannot solve the problems of uneven spraying and obvious atomization effect of spraying machine, thereby affecting the work efficiency, and the coating may also solidify in the cavity, causing the spraying machine to be blocked and affecting the engineering progress. UTILITY MODEL CONTENTS

[0006] To address the aforementioned problems, this utility model provides an electrostatic atomizing spraying machine, which can solve the issues of uneven spraying and unclear atomization effect, ensuring uniform spraying and obvious atomization effect, thereby improving work efficiency; it can also prevent the paint from solidifying inside the cavity, ensuring project progress.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An electrostatic atomizing shotcrete machine includes an electrostatic atomizing mechanism, a sand and gravel feeding mechanism, and a spray gun;

[0009] The electrostatic atomization mechanism includes an electrostatic atomization device frame, a high-voltage electrostatic generator is installed inside the electrostatic atomization device frame, a cement slurry tank is installed on the upper part of the electrostatic atomization device frame, a cement slurry agitator is installed inside the cement slurry tank, and one end of the cement slurry tank is connected to the output end of a gas-liquid booster pump.

[0010] The sand and gravel feeding mechanism includes an air compressor, the output end of which is connected to one end of the sand and gravel box. A sand and gravel funnel is provided at the upper end of the sand and gravel box, a sand and gravel filter screen is provided inside the sand and gravel funnel, and a sand and gravel feed baffle is provided at the lower end of the sand and gravel filter screen. A sand and gravel flow controller is provided at one end of the sand and gravel funnel, and the other end of the sand and gravel box is connected to a spray gun.

[0011] Furthermore, it also includes a trolley, with omnidirectional wheels at one end of the lower part of the trolley and directional wheels at the other end of the lower part of the trolley; a push handle is provided on the upper part of the trolley.

[0012] Furthermore, the omnidirectional wheels and directional wheels are detachably connected to the trolley, while the push handle is fixedly connected to the trolley.

[0013] Furthermore, the electrostatic atomizing device is mounted on the upper end of the trolley, and a motor is mounted on the lower end of the gas-liquid booster pump, with the motor also mounted on the upper end of the trolley.

[0014] Furthermore, the spray gun includes a sand and gravel feed pipe, one end of which is connected to a sand and gravel box, and the other end of which is connected to one end of a mortar mixing pipe.

[0015] Furthermore, the other end of the mortar mixing pipe is connected to one end of the mortar reducing pipe, and the other end of the mortar reducing pipe is connected to one end of the mortar mixing pipe.

[0016] Furthermore, the other end of the mortar mixing pipe is connected to a nozzle, and a spray gun bracket is provided at the lower end of the mortar mixing pipe, which is mounted on a trolley.

[0017] Further, the upper end of the mortar mixing pipe is provided with a spray gun handle, the spray gun handle and the mortar mixing pipe are fixedly connected, one end of the side of the mortar mixing pipe is connected with a cement mortar feeding pipe, and the other end of the cement mortar feeding pipe is connected with a cement mortar box.

[0018] Further, the cement mortar stirrer comprises a cement mortar stirring shaft, and a plurality of cement mortar stirring blades are arranged at the circumferential side of the cement mortar stirring shaft.

[0019] Further, the upper end of the frame is provided with a control panel, and the control panel is electrically connected with the motor, the high-voltage electrostatic generator, the sandstone flow controller and the cement mortar stirrer.

[0020] Compared with the prior art, the mortar spraying machine has the advantages and positive effects that:

[0021] The sandstone feeding mechanism comprises a sandstone box, a sandstone filtering screen, a sandstone hopper, a sandstone flow controller and a sandstone feeding baffle, and the sandstone filtering screen and the sandstone flow controller are respectively located at the middle and the lower part of the sandstone hopper. The sandstone is poured into the sandstone hopper, filtered through the sandstone filtering screen, then enters the sandstone box, and is driven by an air compressor to enter the sandstone feeding pipe, then enters the mortar mixing pipe to be mixed with the cement mortar. The cement mortar is stirred in the cement mortar box by the cement mortar stirrer, and is driven by the gas-liquid booster pump to be transported into the cement mortar feeding pipe, then enters the mortar mixing pipe, so that the sandstone and the cement mortar are mixed. After mixing, the mortar is formed, and then enters the mortar reducing pipe and the mortar gathering pipe in sequence, and finally is sprayed out by the nozzle. The cement mortar and the sandstone enter the spray gun through two channels, and the cement mortar stirrer is installed in the cement mortar box, so that the situation that the coating is solidified in the cavity is effectively avoided.

[0022] The mortar spraying machine adds the electrostatic atomization on the basis of the conventional mortar spraying machine atomization, the cement mortar is charged by the electrostatic atomization, the cement mortars with the same charge repel each other, the atomization effect of the cement mortar is obvious, and the spraying area is more extensive, so that the phenomenon that the spraying is uneven and the cement mortar rebounds in the spraying process is improved, and then the working efficiency of the mortar spraying machine and the working environment of workers are improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description, explain the application. The description and drawings are to be regarded as illustrative in nature, and do not limit the application.

[0024] Figure 1 It is a whole three-dimensional structure schematic view of the mortar spraying machine.

[0025] Figure 2This is a schematic diagram of the sand and gravel feeding mechanism of the shotcrete machine of this utility model;

[0026] Figure 3 This is a schematic diagram of the electrostatic atomization mechanism of the shotcrete machine of this utility model;

[0027] Figure 4 This is a schematic diagram of the cement slurry mixer for the shotcrete machine of this utility model;

[0028] Figure 5 This is a cross-sectional view of the sand and gravel feeding mechanism of the shotcrete machine of this utility model;

[0029] Figure 6 This is a cross-sectional view of the spray gun of the shotcrete machine of this utility model;

[0030] In the diagram: 1. Trolley; 2. Push handle; 3. Control panel; 4. Air compressor; 5. Sand and gravel box; 6. Sand and gravel flow controller; 7. Sand and gravel funnel; 8. Sand and gravel filter screen; 9. Sand and gravel feed pipe; 10. Spray gun handle; 11. Mortar mixing pipe; 12. Mortar reducing pipe; 13. Mortar gathering pipe; 14. Nozzle; 15. Spray gun bracket; 16. High-voltage electrostatic generator; 17. Cement slurry feed pipe; 18. Electrostatic atomizing device frame; 19. Directional wheel; 20. Cement slurry box; 21. Cement slurry mixer; 22. Gas-liquid booster pump; 23. Motor; 24. Universal wheel; 25. Cement slurry mixing blade; 26. Cement slurry mixing shaft; 27. Sand and gravel feed baffle. Detailed Implementation

[0031] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0032] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses an electrostatic atomizing spraying machine, such as... Figure 1 As shown, it includes an electrostatic atomization mechanism, a sand and gravel feeding mechanism, and a spray gun;

[0033] like Figure 3 As shown, the electrostatic atomization mechanism includes an electrostatic atomization device frame 18, a high-voltage electrostatic generator 16 is installed inside the electrostatic atomization device frame 18, a cement slurry tank 20 is installed on the upper part of the electrostatic atomization device frame 18, a cement slurry agitator 21 is installed inside the cement slurry tank 20, and one end of the cement slurry tank 20 is connected to the output end of the gas-liquid booster pump 22.

[0034] On the basis of the conventional spray machine atomization, electrostatic atomization is added, electrostatic atomization makes the cement paste charged, the cement paste with the same charge repels each other, the cement paste atomization effect is obvious, the spraying area is more extensive, thereby improving the uneven spraying and rebounding cement paste phenomenon in the spraying process, and further improving the spraying machine working efficiency and the worker working environment.

[0035] As shown in Figure 2 and Figure 5 , the sand feeding mechanism includes an air compressor 4, the output end of the air compressor 4 is connected with one end of a sand tank 5, the upper end of the sand tank 5 is provided with a sand hopper 7, a sand filter screen 8 is arranged in the sand hopper 7, and a sand feeding baffle 27 is arranged at the lower end of the sand filter screen 8; one end of the sand hopper 7 is provided with a sand flow controller 6, and the other end of the sand tank 5 is connected with a spray gun.

[0036] The sand feeding mechanism includes the sand tank 5, the sand filter screen 8, the sand hopper 7, the sand flow controller 6 and the sand feeding baffle 27, and the sand filter screen 8 and the sand flow controller 6 are respectively located at the middle and the lower part of the sand hopper 7. The sand is poured into the sand hopper 7, filtered through the sand filter screen 8, then enters the sand tank 5, and is driven by the air compressor 4 to enter a sand feeding pipe 9, then enters a mortar mixing pipe 11 to be mixed with cement paste. The cement paste is stirred in a cement paste tank 20 by a cement paste stirrer 21, and is driven by a gas-liquid booster pump 22 to be transported into a cement paste feeding pipe 17, then enters the mortar mixing pipe 11, so that the sand and the cement paste are mixed. After mixing, the mortar is formed, and then enters a mortar reducing pipe 12 and a mortar gathering pipe 13 in sequence, and finally is sprayed out by a nozzle 14. By means of the two channels of the cement paste and the sand entering the spray gun, and the installation of the cement paste stirrer 21 in the cement paste tank 20, the solidification of the coating in the cavity is effectively avoided.

[0037] The trolley 1 is also provided with universal wheels 24 at one end of the lower part and directional wheels 19 at the other end of the lower part, and the trolley 1 is provided with a push handle 2 at the upper part. The universal wheels 24 and the directional wheels 19 are detachably connected with the trolley 1, and the push handle 2 is fixedly connected with the trolley 1. The trolley 1 is used for supporting the sand feeding mechanism, the electrostatic atomization mechanism and the spray gun, and is moved by the universal wheels 24 and the directional wheels 19, and the push handle 2 is provided to facilitate the operator to push.

[0038] The electrostatic atomization device rack 18 is arranged at the upper end of the trolley 1, the lower end of the gas-liquid booster pump 22 is provided with a motor 23, and the motor 23 is arranged at the upper end of the trolley 1. The cement paste tank 20 is placed at the upper end of the electrostatic atomization device rack 18, and the cement paste tank 20 is supported.

[0039] As shown in Figure 6As shown, the spray gun includes a sand and gravel feed pipe 9, one end of which is connected to the sand and gravel box 5, and the other end of which is connected to one end of the mortar mixing pipe 11. The other end of the mortar mixing pipe 11 is connected to one end of the mortar reducing pipe 12, and the other end of the mortar reducing pipe 12 is connected to one end of the mortar gathering pipe 13. The other end of the mortar gathering pipe 13 is connected to the nozzle 14. A spray gun bracket 15 is installed at the lower end of the mortar mixing pipe 11, and the spray gun bracket 15 is mounted on the trolley 1. The spray gun bracket 15 is located at the lower end of the mortar mixing pipe 11 to support it and ensure the stability of the spray gun during operation.

[0040] A spray gun handle 10 is installed at the upper end of the mortar mixing pipe 11, and the spray gun handle 10 is fixedly connected to the mortar mixing pipe 11. The spray gun is removed from the spray gun bracket 15 by holding the spray gun handle 10, and the spray gun handle 10 drives the spray gun to move towards the spraying surface. The side of the mortar mixing pipe 11 is connected to one end of the cement slurry inlet pipe 17, and the other end of the cement slurry inlet pipe 17 is connected to the cement slurry tank 20.

[0041] like Figure 4 As shown, the cement slurry mixer 21 includes a cement slurry mixing shaft 26, with several cement slurry mixing blades 25 spaced apart around its circumference. The cement slurry mixer 21 is powered by a motor 23, which rotates the cement slurry mixing shaft 26, thereby rotating the cement slurry mixing blades 25 and achieving cement slurry mixing. The electrostatic atomization mechanism is made of insulating materials such as ceramics and plastics, and all electrical components, including the cement slurry mixer 21, are insulated.

[0042] A control panel 3 is installed on the upper part of the frame. The control panel 3 is electrically connected to the motor 23, the high-voltage electrostatic generator 16, the sand and gravel flow controller 6, and the cement slurry mixer 21. The motor 23, the high-voltage electrostatic generator 16, the sand and gravel flow controller 6, and the cement slurry mixer 21 are turned on through the control panel 3, and the corresponding devices are activated according to the mixing conditions of the sand and gravel and cement slurry.

[0043] How to use an electrostatic atomizing shotcrete machine:

[0044] In use, the electrical components appearing in the present application are externally connected to power supply, control switch and insulation treatment in use, specifically, the electrostatic atomizing shotcreting machine moves to the working position through the rolling of the universal wheel 24 and the directional wheel 19, the cement mortar is poured into the cement mortar tank 20 from above the cement mortar tank 20, and the gravel is poured into the gravel tank 5 from above the gravel hopper 7. The motor 23, the high-voltage electrostatic generator 16 and the gravel flow controller 6 are turned on through the control panel 3, and the cement mortar agitator 21, under the driving of the motor 23, agitates the cement mortar in the cement mortar tank 20 through the cement mortar agitating shaft 26 and the cement mortar agitating blade 25, preventing the cement mortar from solidifying; the high-voltage generated by the high-voltage electrostatic generator 16 charges the cement mortar in the cement mortar tank 21 under the action of the electrostatic field; the gravel in the gravel hopper 7 is filtered through the gravel filter screen 8 to remove large particles of gravel, avoiding the blockage of the pipeline by large particles of gravel, and the gravel enters the gravel tank 5 at a certain speed under the control of the gravel flow controller 6.

[0045] The air compressor 4 and the gas-liquid booster pump 22 are turned on through the control panel 3, and under the action of compressed air, the gravel in the gravel tank 7 enters the mortar mixing pipe 11 of the spray gun through the gravel feeding pipe 11, and the charged cement mortar enters the mortar mixing pipe 11 through the two cement mortar feeding pipes 17 under the action of the gas-liquid booster pump 22, the gravel and the charged cement mortar are fully mixed in the mortar mixing pipe 11 of the spray gun, and under the action of compressed air, the mixed gravel and cement mortar enter the mortar reducing pipe 12 of the spray gun. The worker takes down the spray gun from the spray gun support 15 by holding the spray gun handle 10, and drives the spray gun to move towards the spraying surface, and the mixed and charged gravel and cement mortar are sprayed towards the spraying surface through the nozzle 14 by compressed air.

[0046] Although the specific embodiments of the utility model have been described in combination with the drawings, it is not a limitation on the protection scope of the utility model, and those skilled in the art should understand that various modifications or deformations made by those skilled in the art on the basis of the technical scheme of the utility model without creative labor are still within the protection scope of the utility model.

Claims

1. An electrostatic atomizing sprayer, characterized by, The electrostatic atomization mechanism, the sand and stone feeding mechanism and the spray gun are included. The electrostatic atomization mechanism includes an electrostatic atomization device frame, a high-voltage electrostatic generator arranged in the electrostatic atomization device frame, a cement slurry tank arranged at the upper part of the electrostatic atomization device frame, and a cement slurry stirrer arranged in the cement slurry tank. The sand and stone feeding mechanism includes an air compressor, the output end of the air compressor is connected with one end of a sand and stone tank, a sand and stone hopper is arranged at the upper end of the sand and stone tank, a sand and stone filter screen is arranged in the sand and stone hopper, and a sand and stone feeding baffle is arranged at the lower end of the sand and stone filter screen.

2. An electrostatic atomizing sprayer as claimed in claim 1, wherein A trolley is further included, universal wheels are arranged at one end of the lower part of the trolley, and directional wheels are arranged at the other end of the lower part of the trolley. A push handle is arranged at the upper part of the trolley.

3. An electrostatic atomizing sprayer as claimed in claim 2, wherein, The universal wheels and the directional wheels are detachably connected with the trolley, and the push handle is fixedly connected with the trolley.

4. An electrostatic atomizing sprayer as claimed in claim 2, wherein, The electrostatic atomization device frame is arranged at the upper end of the trolley, and a motor is arranged at the lower end of the gas-liquid booster pump.

5. An electrostatic atomizing sprayer as claimed in claim 1, wherein, The spray gun includes a sand and stone feeding pipe, one end of the sand and stone feeding pipe is connected with the sand and stone tank, and the other end of the sand and stone feeding pipe is connected with one end of a cement slurry mixing pipe.

6. An electrostatic atomising sprayer as claimed in claim 5, wherein the atomising electrode is formed from a material having a high electrical resistivity. The other end of the cement slurry mixing pipe is connected with one end of a cement slurry reducing pipe, and the other end of the cement slurry reducing pipe is connected with one end of a cement slurry gathering pipe.

7. An electrostatic atomising sprayer as claimed in claim 6, wherein the atomising electrode is formed from a material having a high electrical resistivity. The other end of the cement slurry gathering pipe is connected with a nozzle, the lower end of the cement slurry mixing pipe is provided with a spray gun support, and the spray gun support is arranged on the trolley.

8. An electrostatic atomising sprayer as claimed in claim 7, wherein the atomising electrode is a hollow tube having a plurality of apertures in its side wall. The upper end of the cement slurry mixing pipe is provided with a spray gun handle, the spray gun handle and the cement slurry mixing pipe are fixedly connected, the side of the cement slurry mixing pipe is connected with one end of a cement slurry feeding pipe, and the other end of the cement slurry feeding pipe is connected with the cement slurry tank.

9. An electrostatic atomizing sprayer as claimed in claim 1, wherein, The cement slurry stirrer includes a cement slurry stirring shaft, and a plurality of cement slurry stirring blades are arranged at the circumferential side of the cement slurry stirring shaft.

10. An electrostatic atomizing sprayer as claimed in claim 2, wherein, A control panel is arranged at the upper end of the trolley, and the control panel is electrically connected with the motor, the high-voltage electrostatic generator, the sand and stone flow controller and the cement slurry stirrer.

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