CN211144508U - Concrete dry-spraying device capable of intelligently regulating water-cement ratio - Google Patents
Concrete dry-spraying device capable of intelligently regulating water-cement ratio Download PDFInfo
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- CN211144508U CN211144508U CN201921055568.8U CN201921055568U CN211144508U CN 211144508 U CN211144508 U CN 211144508U CN 201921055568 U CN201921055568 U CN 201921055568U CN 211144508 U CN211144508 U CN 211144508U
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Abstract
The utility model discloses a concrete dry spray device of intelligent control water-cement ratio, include: the straight-through rotor type patching machine comprises a stirrer and an air compressor; the spray head is connected with the stirrer through a material conveying pipe; one end of the booster water pump is connected with the spray head through a water delivery pipe, the water delivery pipe is connected with the material delivery pipe at the flange of the spray head, and an automatic control water valve is arranged; the plug-in type pipeline wind speed sensor is arranged at the spray head, a first ADC and a first ZigBee transmission module are arranged on the outer side of the plug-in type pipeline wind speed sensor, the plug-in type pipeline wind speed sensor is connected with the first ADC, and the first ADC is connected with the first ZigBee transmission module; and the liquid pipeline type electronic turbine sensor is arranged at the automatic control water valve, a second ADC is installed on the outer side of the liquid pipeline type electronic turbine sensor, the liquid pipeline type electronic turbine sensor is connected with the second ADC, and the second ADC is connected with the automatic control water valve. The utility model discloses a concrete dry spraying device has reduced the operation degree of difficulty, has reduced dust volume and rebound rate, and the water-cement ratio is easily controlled.
Description
Technical Field
The utility model relates to a concrete sprays technical field, especially relates to a concrete dry spray device of intelligent control water-cement ratio.
Background
The concrete injection technology is applied to primary support and secondary lining of tunnels and mines at first, and is developed for years to be a quick and effective reinforcing means for reinforcing overground structures. The main principle is that by means of jet machinery, compressed air is used as power to convey a certain proportion of mixture through a high-pressure pipeline, and the mixture is jetted onto a working surface at a high speed, and concrete is compacted by means of repeated continuous impact of cement and aggregate during high-speed jetting. At present, concrete spraying technologies are mainly divided into two categories, namely dry spraying and wet spraying. The dry spraying is to mix the dry material and send it to the spray head to mix with water, and then spray it to the sprayed surface; the wet spraying is to mix the dry material with water in advance, then to fuse the dry material with the accelerating agent at the spray head, and then to spray the mixture to the sprayed surface.
However, the dry spraying method has large dust amount and rebound amount, severe working environment, difficult control of water-cement ratio and large influence of experience of operators. The wet spraying method has the advantages of complex and huge mechanical equipment, easy condensation of wet materials in the material pipe, blockage, high cleaning and maintenance cost, short conveying distance, no stop in midway, more labor-intensive construction operation and low construction efficiency.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a concrete dry spray device of intelligent control water-cement ratio, it can solve prior art's above-mentioned problem.
In order to achieve the above object, the utility model provides a concrete of intelligent control water-cement ratio spouts device futilely, include: the straight-through rotor type patching machine comprises a stirrer and an air compressor; the spray head is connected with the stirrer through a conveying pipe; one end of the booster water pump is connected with a water source, the other end of the booster water pump is connected with the spray head through a water delivery pipe, the water delivery pipe is connected with the material delivery pipe at the flange of the spray head, and an automatic control water valve is arranged on the water delivery pipe; the plug-in type pipeline wind speed sensor is arranged at the spray head and used for measuring and controlling wind pressure at the spray head, and a first analog-to-digital converter (ADC) and a first ZigBee transmission module are arranged on the outer side of the plug-in type pipeline wind speed sensor; and the liquid pipeline type electronic turbine sensor is arranged at the automatic control water valve and used for measuring and controlling water flow, and a second ADC is installed on the outer side of the liquid pipeline type electronic turbine sensor, wherein the liquid pipeline type electronic turbine sensor is connected with the second ADC which is connected with the automatic control water valve.
In a preferred embodiment, a mounting hole is arranged at a position 30cm away from a nozzle of the spray head, and is used for mounting a plug-in pipeline wind speed sensor and is fixed through a flange.
In a preferred embodiment, a liquid pipe type electronic turbine sensor is installed at a distance of 30cm from the automatic control water valve and fixed by a clamp.
In a preferred embodiment, the spray head is made of cast iron, the air pressure at the spray head is kept between 0.1 and 0.2MPa, and the air speed is kept between 15 and 20 m/s.
In a preferred embodiment, the air compressor is connected with a circuit breaker, the circuit breaker is connected with a second ZigBee transmission module, and the second ZigBee transmission module can wirelessly communicate with the first ZigBee transmission module.
In a preferred embodiment, the plug-in pipeline wind speed sensor can output current, the current is subjected to analog-to-digital conversion through the first ADC, and digital signals output by the first ADC are sent to the air compressor through the first ZigBee transmission module and the second ZigBee transmission module.
In a preferred embodiment, the concrete dry spraying device capable of intelligently regulating and controlling the water-cement ratio further comprises a warning lamp, the warning lamp is respectively connected with the first ADC and the first ZigBee transmission module, and when the wind speed at the spray head is not within a specified range, the warning lamp is turned on, and the power supply of the air compressor is cut off through the circuit breaker.
In a preferred embodiment, the rectangular pulse wave formed by the liquid pipeline type electronic turbine sensor is converted into a digital signal through the second ADC, and the digital signal range is set and then converted into an electric signal to control the opening size of the automatic control water valve.
In a preferred embodiment, the water-cement ratio of the concrete dry spraying device for intelligently regulating the water-cement ratio is controlled to be 0.4-0.5, the water flow is determined according to the mixing ratio and the production efficiency, and the water flow is automatically regulated through a liquid pipeline type electronic turbine sensor and an automatic control water valve.
Compared with the prior art, according to the utility model discloses a concrete dry spray device of intelligent control water-cement ratio has following advantage: the utility model discloses shower nozzle department at traditional concrete dry spray mechanical equipment has increased bayonet pipeline air velocity transducer, liquid pipeline formula electron turbine sensor and automatic control water valve to solved traditional dry spray equipment and need leaned on the problem that workman's experience controlled wind pressure and discharge, reduced the operation degree of difficulty, reduced dust volume and rebound rate simultaneously, the water-cement ratio is easily controlled.
Drawings
Fig. 1 is a schematic structural diagram of a concrete dry-spraying device capable of intelligently regulating and controlling a water-cement ratio according to an embodiment of the present invention.
Fig. 2 is a control flow chart of the concrete dry-spraying device capable of intelligently regulating and controlling the water-cement ratio according to an embodiment of the present invention.
Description of the main reference numerals:
101-straight-through rotor type patching machine, 102-booster water pump, 103-spray head, 104-plug-in type pipeline wind speed sensor, 105-liquid pipeline type electronic turbine sensor, 106-conveying pipe, 107-water conveying pipe, 108-water source, 109-automatic control water valve, 111-base frame, 112-motor, 113-electric control box, 114-air path system, 115-vibrator, 116-anti-sticking material cavity, 117-vibration hopper, 118-hopper base, 119-discharging elbow, 120-swirler, 121-circuit breaker, 122-clamping device, 123-speed reducer, 124-kicker, 125-rubber sealing plate, 126-rotor body, 127-rotor lining, 128-panel, 201-first ADC, 202-a first ZigBee transmission module, 203-a second ADC, 204-a second ZigBee transmission module, 205-a stirrer, 206-an air compressor, 207-a warning light.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1 to 2, the concrete dry-spraying device for intelligently regulating and controlling the water-cement ratio according to the preferred embodiment of the present invention comprises: a straight-through rotor style patching machine 101, a sprinkler head 103, a booster pump 102, a plug-in duct wind speed sensor 104, a liquid duct style electronic turbine sensor 105, and an automatically controlled water valve 109.
The once-through rotor type shotcrete machine 101 includes a mixer 205 and an air compressor 206, and the mixer 205 is used for receiving and mixing fine stone dry-mixed concrete. The spray head 103 is connected to the mixer 205 through a feed pipe 106. One end of the booster water pump 102 is connected with a water source 108, the other end is connected with the spray head 103 through a water delivery pipe 107, the water delivery pipe 107 is connected with a material delivery pipe 106 at the flange of the spray head 103, and an automatic control water valve 109 is arranged on the water delivery pipe close to the spray head. The plug-in type pipeline wind speed sensor 104 is installed at the nozzle 103 and used for measuring and controlling wind pressure at the nozzle, a first analog-to-digital converter (ADC) 201 and a first ZigBee transmission module 202 are installed on the outer side of the plug-in type pipeline wind speed sensor 104, wherein the plug-in type pipeline wind speed sensor 104 is connected with the first ADC 201, and the first ADC 201 is connected with the first ZigBee transmission module 202. The liquid pipeline type electronic turbine sensor 105 is arranged at the automatic control water valve 109 and used for measuring and controlling water flow, a second ADC 203 is installed on the outer side of the liquid pipeline type electronic turbine sensor 105, wherein the liquid pipeline type electronic turbine sensor 105 is connected with the second ADC 203, and the second ADC 203 is connected with the automatic control water valve 109. The two parts of sensors and the transmission module are powered by button batteries.
As shown in fig. 1, the straight-through rotor type slurry spraying machine 101 further includes a base frame 111, a motor 112, an electrical control box 113, an air-path system 114, a vibration hopper 117, a vibrator 115, and an anti-material-sticking chamber 116, wherein one end of the motor 112 and one end of the air-path system 114 are disposed on the base frame 111, the other end of the air-path system 114 is connected to the vibrator 115, the vibrator 115 is connected to the vibration hopper 117, the vibration hopper 117 is disposed on a hopper base 118, the vibration hopper 117 is communicated with the anti-material-sticking chamber 116, a discharging elbow 119 is connected to the bottom of the anti-material-sticking chamber 116, and the discharging elbow 119 is.
In a preferred embodiment, a mounting hole is provided at a distance of 30cm from the nozzle of the nozzle 103 for mounting the plug-in duct wind speed sensor 104, and is fixed by a flange. And a liquid pipeline type electronic turbine sensor is arranged at a position 30cm away from the automatic control water valve and is fixed through a clamp.
In a preferred embodiment, the air compressor 206 is connected with a circuit breaker 121, the circuit breaker 121 is connected with a second ZigBee transmission module 204, and the second ZigBee transmission module 204 can wirelessly communicate with the first ZigBee transmission module 202.
In a preferred embodiment, the concrete dry-spraying device capable of intelligently regulating and controlling the water-cement ratio further comprises a warning lamp 207, and the warning lamp 207 is respectively connected with the first ADC 201 and the first ZigBee transmission module 202. The plug-in type pipeline wind speed sensor 104 can output current, the current is subjected to analog-to-digital conversion through the first ADC 201, and digital signals output by the first ADC 201 are sent to the air compressor 206 through the first ZigBee transmission module 202 and the second ZigBee transmission module 204.
In a preferred embodiment, a 50mm cast iron nozzle is adopted as the nozzle, and when C25 dry-mix commercial concrete is sprayed, the wind pressure at the nozzle 103 is kept between 0.1 and 0.2MPa, and the wind speed is kept between 15 and 20 m/s. When the wind speed of the spray head 103 is not within the specified range, the warning lamp is turned on, and the power supply of the air compressor 206 is cut off through the plug-in pipeline wind speed sensor 104, the first ADC 201, the first ZigBee transmission module 202 and the second ZigBee transmission module 204. And after the wind pressure at the spray head is adjusted and the wind speed is stable, spraying. Dry spraying equipment average production capacity (mixture) 5m thin year/h, water-cement ratio control is at 0.4~0.5, according to mix proportion and production efficiency, confirms that discharge is 0.8~1.0m thin year/h, carries out discharge automatically regulated through liquid pipeline formula electron turbine sensor and automatic control water valve. Therefore, under the condition of keeping the wind speed (wind pressure) at the spray head to be constant, the effect of automatically controlling the water-cement ratio can be achieved by automatically adjusting the water flow.
The utility model discloses a bayonet pipeline air velocity transducer theory of operation: based on the principle of a heat dissipation tube, a sensing element, a thin metal sheet heated by passing current, is placed in the duct by a probe rod. When the gas passes through, it will carry away some heat, which is related to the fluid velocity. When the metal sheet works, the resistance value of the metal sheet is changed due to the reduction of the surface temperature of the metal sheet, and the Wheatstone bridge is unbalanced. The temperature difference change is fed back to the processor through a feedback circuit consisting of a Wheatstone bridge to increase the current, so that the temperature of the metal sheet is kept constant. The flow rate of the fluid is proportional to the increased current, the larger the flow rate is, the larger the current is required to be increased, and the magnitude of the flow rate can be known according to the increased current.
The working principle of the liquid pipeline type electronic turbine sensor is as follows: the fluid flows through the sensor shell, and because the blades of the impeller have a certain angle with the flow direction, the impulse force of the fluid enables the impeller to have a rotating moment, the blades rotate after overcoming the friction moment and the fluid resistance, the rotating speed is stable after the moment is balanced, and the rotating speed is in direct proportion to the flow speed under a certain condition. Because the blade has magnetic conductivity, it is in the magnetic field of signal detection (formed from permanent magnetic steel and coil), and the rotating blade can cut magnetic induction line and periodically change magnetic flux of coil so as to make two ends of coil produce electric pulse signal. The signal is amplified and shaped by an amplifier to form a continuous rectangular pulse wave with a certain amplitude, and the pulse frequency f is in direct proportion to the instantaneous flow Q flowing through the sensor in a certain flow range.
The working principle of signal transmission is as follows: the wind speed sensor outputs current, the current is subjected to analog-to-digital conversion through the collector, the output digital signal is sent to the air compressor through the ZigBee wireless communication module, and the manual setting of working software controls the wind pressure.
The working principle of the automatic control water valve is as follows: the rectangular pulse wave formed by the liquid pipeline type electronic turbine sensor is converted into a digital signal through the second ADC, and the digital signal range is set and then converted into an electric signal to control the opening size of the automatic control water valve.
The utility model discloses increased bayonet pipeline air velocity transducer, liquid pipeline formula electron turbine sensor and automatic control water valve door in shower nozzle department, improved direct rotor formula patching machine cavity press simultaneously, can carry out variable power output. The problem of traditional dry spraying equipment need rely on workman's experience to control wind pressure and discharge is solved, reduced the operation degree of difficulty, reduced dust volume and rebound resilience rate simultaneously, the water-cement ratio is easily controlled.
Normal use the utility model discloses a concrete is spouted equipment futilely and is carried out the concrete and spray the construction, should examine earlier whether firm in sensor installation before the use, whether sensor installation direction is correct, and the fluid direction of strictly forbidden is inconsistent with sensor sign direction. After one-time spraying is finished, the sensor is cleaned in time, and the sensitivity of the sensor is ensured.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (9)
1. The utility model provides a concrete of intelligent control water-cement ratio spouts device futilely which characterized in that, concrete of intelligent control water-cement ratio spouts device futilely includes:
the straight-through rotor type patching machine comprises a stirrer and an air compressor;
the sprayer is connected with the stirrer through a conveying pipe;
one end of the booster water pump is connected with a water source, the other end of the booster water pump is connected with the spray head through a water delivery pipe, the water delivery pipe is connected with the material delivery pipe at a flange of the spray head, and an automatic control water valve is arranged on the water delivery pipe;
the plug-in type pipeline wind speed sensor is arranged at the spray head and used for measuring and controlling wind pressure at the spray head, and a first ADC and a first ZigBee transmission module are arranged on the outer side of the plug-in type pipeline wind speed sensor; and
liquid pipeline formula electron turbine sensor, it sets up automatic control water valve department for observe and control discharge, the second ADC is installed in the outside of liquid pipeline formula electron turbine sensor, wherein, liquid pipeline formula electron turbine sensor with the second ADC is connected, the second ADC with the automatic control water valve is connected.
2. The concrete dry-spraying device capable of intelligently regulating the water-cement ratio as claimed in claim 1, wherein a mounting hole is formed at a position 30cm away from a nozzle of the spray head, and is used for mounting the plug-in type pipeline wind speed sensor and is fixed through a flange.
3. The concrete dry-spraying apparatus for intelligently controlling a water-cement ratio as claimed in claim 1, wherein said liquid pipe type electronic turbine sensor is installed at a distance of 30cm from said automatic control water valve and fixed by a clip.
4. The concrete dry spraying device capable of intelligently regulating the water-cement ratio as claimed in claim 1, wherein a cast iron nozzle is adopted as the nozzle, the wind pressure at the nozzle is kept at 0.1-0.2 MPa, and the wind speed is kept at 15-20 m/s.
5. The concrete dry-spraying device capable of intelligently regulating the water-cement ratio as claimed in claim 1, wherein a breaker is connected to the air compressor, the breaker is connected to a second ZigBee transmission module, and the second ZigBee transmission module can wirelessly communicate with the first ZigBee transmission module.
6. The concrete dry-spraying device capable of intelligently regulating the water-cement ratio as claimed in claim 5, wherein the plug-in type pipeline wind speed sensor can output current, the current is subjected to analog-to-digital conversion through the first ADC, and a digital signal output by the first ADC is sent to the air compressor through the first ZigBee transmission module and the second ZigBee transmission module.
7. The concrete dry-spraying device capable of intelligently regulating the water-cement ratio as claimed in claim 6, further comprising a warning lamp, wherein the warning lamp is respectively connected with the first ADC and the first ZigBee transmission module, and when the wind speed at the spray head is not within a specified range, the warning lamp is turned on, and the power supply of the air compressor is cut off through the circuit breaker.
8. The concrete dry-spraying device capable of intelligently regulating the water-cement ratio as claimed in claim 1, wherein the rectangular pulse wave formed by the liquid pipeline type electronic turbine sensor is converted into a digital signal through the second ADC, and the opening size of the automatic control water valve is controlled by manually setting the range of the digital signal and converting the range of the digital signal into an electric signal.
9. The concrete dry-spraying device capable of intelligently regulating the water-cement ratio as claimed in claim 1, wherein the water-cement ratio of the concrete dry-spraying device capable of intelligently regulating the water-cement ratio is controlled to be 0.4-0.5, the water flow is determined according to the mix proportion and the production efficiency, and the automatic regulation of the water flow is carried out through the liquid pipeline type electronic turbine sensor and the automatic control water valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921055568.8U CN211144508U (en) | 2019-07-08 | 2019-07-08 | Concrete dry-spraying device capable of intelligently regulating water-cement ratio |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921055568.8U CN211144508U (en) | 2019-07-08 | 2019-07-08 | Concrete dry-spraying device capable of intelligently regulating water-cement ratio |
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| CN211144508U true CN211144508U (en) | 2020-07-31 |
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| CN201921055568.8U Expired - Fee Related CN211144508U (en) | 2019-07-08 | 2019-07-08 | Concrete dry-spraying device capable of intelligently regulating water-cement ratio |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227374A (en) * | 2020-11-05 | 2021-01-15 | 东北大学 | Dry type concrete spraying device and method for side slope |
-
2019
- 2019-07-08 CN CN201921055568.8U patent/CN211144508U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227374A (en) * | 2020-11-05 | 2021-01-15 | 东北大学 | Dry type concrete spraying device and method for side slope |
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Granted publication date: 20200731 |