CN218493605U - Spiral sealed concrete sprayer - Google Patents
Spiral sealed concrete sprayer Download PDFInfo
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- CN218493605U CN218493605U CN202221889180.XU CN202221889180U CN218493605U CN 218493605 U CN218493605 U CN 218493605U CN 202221889180 U CN202221889180 U CN 202221889180U CN 218493605 U CN218493605 U CN 218493605U
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Abstract
The utility model provides a spiral seal concrete sprayer, include: the material conveying unit comprises a feeding screw conveyor, a discharging screw conveyor and a feeding hopper, wherein the feeding screw conveyor is arranged in a horizontal conveying mode, a discharging port of the feeding screw conveyor is connected with a feeding port of the discharging screw conveyor, and the discharging screw conveyor is arranged in a conveying mode in a direction perpendicular to the feeding screw conveyor; the material spraying unit is used for mixing and spraying the materials conveyed by the material conveying unit and the accelerating agent added by the accelerating agent adding unit by utilizing compressed air; and an accelerator addition unit. When the material is conveyed, the conveying speed of the feeding screw conveyor is higher than that of the discharging screw conveyor, so that expansion pressure is formed at the joint of the feeding screw conveyor and the discharging screw conveyor, the spiral sealing concrete sprayer can continuously and uniformly discharge materials, a material spraying pipe cannot be blocked, the expansion pressure formed by the spiral is utilized for sealing, no sealing element is worn, no leakage spraying exists, and the environment protection is facilitated.
Description
Technical Field
The utility model relates to a concrete sprayer field, concretely relates to spiral seal concrete sprayer.
Background
The sprayed concrete is usually used for pouring thin-wall structures such as tunnel linings, walls, ceilings and the like or linings of other structures and protective layers of steel structures, and the action flow is to use a concrete sprayer, utilize compressed air or other power to convey prepared cement, sand, stones, water, a certain amount of additives and the like to a spraying head, and form material beams after being doped with an accelerating agent to be sprayed to a construction surface. The existing rotor type concrete sprayer enables concrete to enter a material cup through a hopper, the material cup is driven by a rotor body to rotate to the lower side of an air pipe, then the concrete in the material cup is blown into a discharging elbow by means of compressed air, and finally spraying is formed through a spraying head. Such a rotor-type concrete sprayer has two drawbacks: 1. the material cup is driven by the rotor body to rotate in place and then can be discharged, so that the material can be discharged at intervals cup by cup during discharging, the discharging is discontinuous, and the material spraying pipe is easy to block; 2. as the rotor body drives the material cup to frequently rotate, the rubber sealing discs arranged above and below the material cup are easily worn by concrete aggregate under long-term use, the sealing property is poor, the spraying leakage is easily caused, and the problems of machine damage, environmental pollution and the like are seriously caused.
SUMMERY OF THE UTILITY MODEL
The present invention has been made to solve the above problems, and an object of the present invention is to provide a spiral sealing concrete spraying machine.
The utility model provides a spiral seal concrete sprayer has such characteristic, include: the material conveying unit comprises a feeding screw conveyor, a discharging screw conveyor and a feeding hopper, wherein the feeding screw conveyor and the discharging screw conveyor are respectively provided with a feeding port and a discharging port, the feeding screw conveyor is arranged in a conveying manner along the horizontal direction, the feeding hopper is arranged on the feeding port of the feeding screw conveyor, the discharging port of the feeding screw conveyor is connected with the feeding port of the discharging screw conveyor, and the discharging screw conveyor is arranged in a conveying manner along the direction vertical to the feeding screw conveyor; the spraying unit is connected with a discharge port of the discharge screw conveyor and is used for mixing and spraying the materials conveyed by the material conveying unit and the accelerating agent added by the accelerating agent adding unit by utilizing compressed air; the accelerating agent adding unit is connected with the material spraying unit and is used for adding an accelerating agent into the material in the material spraying unit; when the material conveying unit conveys materials, the conveying speed of the feeding spiral conveyor is higher than that of the discharging spiral conveyor, so that the joint of the feeding spiral conveyor and the discharging spiral conveyor forms expansion pressure for preventing backflow of compressed air of the spraying unit.
The utility model provides an among the spiral sealed concrete sprayer, can also have such characteristic: the feeding screw conveyor and the discharging screw conveyor respectively comprise a shell, a transmission shaft, a screw blade, a motor and a speed reducer, the shell is provided with a feeding port and a discharging port, the transmission shaft is arranged in the shell and is provided with the screw blade, the motor and the speed reducer are connected and drive the transmission shaft to rotate, and the diameter of the screw blade of the feeding screw conveyor is larger than that of the screw blade of the discharging screw conveyor.
Further, the feeding screw conveyor also comprises a control part, and the control part controls the rotating speed of the motor by adjusting the magnitude of the current.
The utility model provides an among the spiral sealed concrete sprayer, can also have such characteristic: the material spraying unit comprises an air inlet pipe, an electromagnetic valve, a material spraying pipe and an injector head, one end of the air inlet pipe is connected with one side of a discharge port of the discharge screw conveyor, the other end of the air inlet pipe is used for connecting a compressed air source, the electromagnetic valve is arranged in the air inlet pipe, one end of the material spraying pipe is connected with the other side of the discharge port of the discharge screw conveyor, the other end of the material spraying pipe is connected with the injector head, and the injector head is internally added with the accelerating agent to form a unit communication.
The utility model provides an among the spiral sealed concrete sprayer, can also have such characteristic: the accelerating agent adding unit comprises a liquid accelerating agent tank, an accelerating agent conveying pipe and an accelerating agent conveying pump, the two ends of the accelerating agent conveying pipe are respectively connected with the liquid accelerating agent tank and the spraying unit, and the accelerating agent conveying pump is arranged on the accelerating agent conveying pipe.
The utility model provides an among the spiral sealed concrete sprayer, can also have such characteristic: further comprising: and the control unit is connected with and controls the material conveying unit, the material spraying unit and the accelerator adding unit to work.
Action and effect of the utility model
According to the utility model relates to a spiral seal concrete sprayer, because the material conveying unit includes feeding screw conveyer and ejection of compact screw conveyer, feeding screw conveyer carries along the horizontal direction, ejection of compact screw conveyer carries along perpendicular to feeding screw conveyer's direction, when carrying the material, feeding screw conveyer's conveying speed is greater than ejection of compact screw conveyer's conveying speed, make feeding screw conveyer and ejection of compact screw conveyer's junction can form the inflation pressure that is higher than compressed air pressure, play spiral seal's effect, so this spiral seal concrete sprayer can be ejection of compact in succession and uniformly, can not cause and spout the material pipe jam, and the inflation pressure seal who utilizes the spiral to form, effectively prevented the compressed air backward flow of spouting the material unit, consequently there is not sealing member wearing and tearing in this spiral seal concrete sprayer, there is not the blowout, be favorable to environmental protection.
Drawings
Fig. 1 is a schematic structural view of a screw-seal concrete spraying machine according to an embodiment of the present invention.
Description of reference numerals:
100 spiral sealing concrete sprayer; 10 a material conveying unit; 11 feeding a screw conveyor; 111 a housing; 112 helical blades; 113 motor; 114 a speed reducer; 12 discharging screw conveyor; 121 a housing; 122 helical blades; a motor 123; 124 speed reducer; 13 a feed hopper; 20, a material spraying unit; 21, an air inlet pipe; 22 a solenoid valve; 23, a material spraying pipe; 24 spray heads; 30 accelerator addition units; 31 a liquid accelerator tank; 32 accelerator delivery pipes; 33 accelerator delivery pump.
Detailed Description
In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the following embodiments are specifically illustrated in conjunction with the accompanying drawings.
Examples
Fig. 1 is a schematic structural view of a screw-type sealed concrete injection machine 100.
As shown in fig. 1, the present embodiment provides a screw sealing concrete sprayer 100 including a material conveying unit 10, a spraying unit 20, and an accelerator adding unit 30.
The material transfer unit 10 serves to uniformly transfer the concrete slurry. The material conveying unit 10 includes a feed screw conveyor 11, a discharge screw conveyor 12, and a feed hopper 13. The feeding screw conveyor 11 is arranged along the horizontal direction in a conveying mode, the feeding screw conveyor 11 comprises a shell 111, a transmission shaft, a screw blade 112, a motor 113 and a speed reducer 114, the shell 111 is provided with a feeding hole and a discharging hole, a feeding hopper 13 is installed on the feeding hole, the transmission shaft is arranged in the shell 111 and is provided with the screw blade 112, and the motor 113 is connected with the speed reducer 114 and drives the transmission shaft to rotate. The discharging screw conveyor 12 is arranged along a direction perpendicular to the feeding screw conveyor 11, the discharging screw conveyor 12 includes a housing 121, a transmission shaft, a screw blade 122, a motor 123 and a speed reducer 124, a feeding port of the housing 121 is connected with a discharging port of the housing 111 of the feeding screw conveyor 11, and other connection relations refer to the feeding screw conveyor 11 and are not described herein again.
The material spraying unit 20 is used for mixing and spraying the material conveyed by the material conveying unit 10 and the accelerator added by the accelerator adding unit 30 by using compressed air. The injection unit 20 includes an air inlet pipe 21, an electromagnetic valve 22, an injection pipe 23, and an injection head 24. One end of the air inlet pipe 21 is connected with one side of a discharge hole of the discharge screw conveyor 12, the other end of the air inlet pipe 21 is connected with an external compressed air source, and the electromagnetic valve 22 is arranged on the air inlet pipe 21 and used for opening and closing the air inlet pipe 21. One end of the spray pipe 23 is connected with the other side of the discharge port of the discharge screw conveyor 12, the other end of the spray pipe 23 is connected with the spray head 24, and the interior of the spray head 24 is communicated with the accelerator adding unit 30. In this embodiment, the two sides of the discharge port of the housing 121 of the discharge screw conveyor 12 are both provided with horizontally extending extension sections, the extension section on one side of the discharge port is connected with the electromagnetic valve 22, the electromagnetic valve 22 is connected with the air inlet pipe 21, and the extension section on the other side of the discharge port is connected with the material spraying pipe 23. The air inlet pipe 21 and the spray pipe 23 are referred to as a pipeline, and may be a single pipe or a plurality of connected pipes.
The accelerator adding unit 30 is used for adding an accelerator to the material in the spraying unit 20. The accelerator addition unit 30 includes the accelerator addition unit 30 including a liquid accelerator tank 31, an accelerator delivery pipe 32, and an accelerator delivery pump 33. One end of the accelerator delivery pipe 32 is connected to the liquid accelerator tank 31, and the other end of the accelerator delivery pipe 32 is communicated with the inside of the spray head 24 of the spray unit 20. The accelerator delivery pump 33 is provided on the accelerator delivery pipe 32 for delivering the liquid accelerator in the liquid accelerator tank 31 to the spray head 24.
In order to prevent the compressed air of the material spraying unit 20 from driving the concrete slurry to flow back, the diameter of the feeding screw conveyer 11 is larger than the diameter of the discharging screw conveyer 12, so that the conveying speed of the feeding screw conveyer 11 is larger than the conveying speed of the discharging screw conveyer 12, and the joint of the feeding screw conveyer 11 and the discharging screw conveyer 12 can form expansion pressure for preventing the compressed air from flowing back. In this embodiment, the diameter of the spiral blade 112 of the feeding spiral conveyor 11 is set to be larger than the diameter of the spiral blade 122 of the discharging spiral conveyor 12, so that the conveying speed of the feeding spiral conveyor 11 can be larger than the conveying speed of the discharging spiral conveyor 12, and the expansion pressure formed at the joint of the feeding spiral conveyor 11 and the discharging spiral conveyor 12 is larger than the pressure of compressed air, thereby performing spiral sealing and realizing the function of preventing the backflow of the compressed air.
In order to improve the automation degree, the spiral sealing concrete sprayer further comprises a control unit, the control unit is connected with and controls the motors 113 and 123 of the feeding spiral conveyor 11 and the discharging spiral conveyor 12 of the material conveying unit 10, the electromagnetic valve 22 of the spraying unit 20 and the accelerator conveying pump 33 of the accelerator adding unit 30 to work, and the control unit can be any chip capable of achieving the function in the prior art. Besides the conventional on-off control, the control unit can also realize the regulation control. For example, the control unit may control the rotation speed of the motor 113 of the feeding screw conveyor 11 by adjusting the magnitude of the current, so as to achieve the purpose of adjusting the feeding pressure and protecting the motor 113; the control unit can also adjust the rotation speed of the motor 123 of the discharge screw conveyor 12 and the rotation speed of the motor of the accelerator delivery pump 33, which will not be described in detail herein.
The working process of the spiral sealed concrete sprayer comprises the following steps: the uniformly mixed concrete slurry is fed from a feed hopper 13, is horizontally conveyed by a feed screw conveyor 11, and is conveyed by a discharge screw conveyor 12 in a direction perpendicular to the feed screw conveyor 11. Meanwhile, the electromagnetic valve 22 on the air inlet pipe 21 is opened, compressed air enters the discharge port of the discharge screw conveyor 12 and the spray pipe 23 through the air inlet pipe 21, and concrete slurry conveyed to the discharge port by the discharge screw conveyor 12 flows along the spray pipe 23 to the spray head 24 under the action of the compressed air. At the same time, the accelerator feed pump 33 operates to feed the liquid accelerator in the liquid accelerator tank 31 into the spray head 24. In this manner, the mixed concrete slurry and accelerator can be ejected from the ejecting head 24 by the compressed air.
Effects and effects of the embodiments
According to the spiral sealed concrete sprayer related to the embodiment, the material conveying unit comprises the feeding spiral conveyor and the discharging spiral conveyor, the feeding spiral conveyor conveys along the horizontal direction, the discharging spiral conveyor conveys along the direction perpendicular to the feeding spiral conveyor, when materials are conveyed, the conveying speed of the feeding spiral conveyor is larger than that of the discharging spiral conveyor, expansion pressure higher than compressed air pressure can be formed at the joint of the feeding spiral conveyor and the discharging spiral conveyor, the spiral sealing effect is achieved, so that the spiral sealed concrete sprayer can continuously and uniformly discharge materials, a spraying pipe cannot be blocked, meanwhile, the expansion pressure formed by a spiral is utilized for sealing, the compressed air backflow of the spraying unit is effectively prevented, and therefore, no sealing element is worn in the spiral sealed concrete sprayer, no spraying leakage exists, and the environment protection is facilitated.
The feeding screw conveyor and the discharging screw conveyor respectively comprise a shell, a transmission shaft, a screw blade, a motor and a speed reducer. Wherein, the diameter through setting up feeding screw conveyer's helical blade is greater than ejection of compact screw conveyer's helical blade's diameter, can make feeding screw conveyer's conveying speed be greater than ejection of compact screw conveyer's conveying speed.
The material spraying unit comprises an air inlet pipe, an electromagnetic valve, a material spraying pipe and a spraying head. The air inlet pipe is connected with one side of a discharge port of the discharge screw conveyor, the spraying pipe is connected with the other side of the discharge port, and the spraying head is installed at the tail end of the spraying pipe and communicated with the accelerator adding unit inside the spraying head.
The accelerator adding unit comprises a liquid accelerator tank, an accelerator delivery pipe and an accelerator delivery pump.
This spiral sealed concrete sprayer still includes the control unit, and the control unit connects and controls material conveying unit, spouts material unit and accelerator and adds unit work, can improve this spiral sealed concrete sprayer's degree of automation.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (6)
1. A spiral seal concrete sprayer, comprising:
the material conveying unit comprises a feeding screw conveyor, a discharging screw conveyor and a feeding hopper, wherein the feeding screw conveyor and the discharging screw conveyor are respectively provided with a feeding port and a discharging port, the feeding screw conveyor is arranged in a conveying manner along the horizontal direction, the feeding hopper is arranged on the feeding port of the feeding screw conveyor, the discharging port of the feeding screw conveyor is connected with the feeding port of the discharging screw conveyor, and the discharging screw conveyor is arranged in a conveying manner along the direction vertical to the feeding screw conveyor;
the material spraying unit is connected with a discharge port of the discharge spiral conveyor and is used for mixing and spraying the materials conveyed by the material conveying unit and the accelerating agent added by the accelerating agent adding unit by utilizing compressed air; and
the accelerator adding unit is connected with the spraying unit and is used for adding an accelerator into the material in the spraying unit;
when the material conveying unit conveys materials, the conveying speed of the feeding spiral conveyor is higher than that of the discharging spiral conveyor, so that the joint of the feeding spiral conveyor and the discharging spiral conveyor forms expansion pressure for preventing backflow of compressed air of the spraying unit.
2. The spiral seal concrete sprayer of claim 1, wherein:
wherein the feeding screw conveyer and the discharging screw conveyer respectively comprise a shell, a transmission shaft, a screw blade, a motor and a speed reducer,
the shell is provided with the feed inlet and the discharge outlet,
the transmission shaft is arranged in the shell and is provided with the helical blade,
the motor is connected with the speed reducer and drives the transmission shaft to rotate,
the diameter of the spiral blade of the feeding spiral conveyor is larger than that of the spiral blade of the discharging spiral conveyor.
3. The spiral seal concrete sprayer of claim 2, wherein:
wherein the feeding screw conveyor further comprises a control part,
the control part controls the rotating speed of the motor by adjusting the magnitude of the current.
4. The spiral seal concrete sprayer of claim 1, wherein:
wherein the material spraying unit comprises an air inlet pipe, an electromagnetic valve, a material spraying pipe and a spraying head,
one end of the air inlet pipe is connected with one side of the discharge hole of the discharge screw conveyor, the other end of the air inlet pipe is used for connecting a compressed air source,
the electromagnetic valve is arranged on the air inlet pipe,
one end of the material spraying pipe is connected with the other side of the discharge hole of the discharge screw conveyor, the other end of the material spraying pipe is connected with the spray head,
the interior of the injection head is communicated with the accelerating agent adding unit.
5. The spiral seal concrete sprayer of claim 1, wherein:
wherein the accelerator adding unit comprises a liquid accelerator tank, an accelerator delivery pipe and an accelerator delivery pump,
two ends of the accelerator delivery pipe are respectively connected with the liquid accelerator tank and the spraying unit,
the accelerator delivery pump is arranged on the accelerator delivery pipe.
6. The screw-seal concrete sprayer according to any one of claims 1 to 5, further comprising:
and the control unit is connected with and controls the material conveying unit, the material spraying unit and the accelerator adding unit to work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221889180.XU CN218493605U (en) | 2022-07-20 | 2022-07-20 | Spiral sealed concrete sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221889180.XU CN218493605U (en) | 2022-07-20 | 2022-07-20 | Spiral sealed concrete sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218493605U true CN218493605U (en) | 2023-02-17 |
Family
ID=85184709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221889180.XU Active CN218493605U (en) | 2022-07-20 | 2022-07-20 | Spiral sealed concrete sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218493605U (en) |
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2022
- 2022-07-20 CN CN202221889180.XU patent/CN218493605U/en active Active
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