An automatic quantitative water supply device

Abstract

This utility model discloses an automatic quantitative water supply device, comprising: a water supply system installed on the side of a wet shotcrete machine; the water supply system includes a straight pipe and a first galvanized tee; the lateral interface of the first galvanized tee is connected to a first pneumatic ball valve; the axial outlet of the first galvanized tee is connected to a first straight pipe; the outlet end of the first straight pipe is connected to a galvanized elbow; the outlet end of the galvanized elbow is connected to a second straight pipe; the outlet end of the first pneumatic ball valve is connected in series with a Y-type filter, a first flange pipe, a mine-use explosion-proof turbine flow sensor, a second flange pipe, and a third straight pipe; the second and third straight pipes are connected via a second galvanized tee. The above technical solution uses a mine-use explosion-proof turbine flow sensor to monitor flow data in real time and dynamically adjusts the opening of the solenoid valve according to a preset program, effectively controlling the water supply effect, eliminating the defect of insufficient water supply in the ejector injection, ensuring the uniformity of slurry mixing, and providing intuitive data measurement.

Description

Technical Field

[0001] This utility model relates to the technical field of wet shotcrete machines and mining grouting pumps, and specifically to an automatic quantitative water supply device. Background Technology

[0002] Wet shotcreting and grouting processes are key technologies for coal mine rock roadway support. The current wet shotcreting machine workflow is as follows: cement, aggregates, and other shotcreting materials are mixed with a measured amount of water to form a concrete slurry, which is then transported through pipelines and sprayed onto the roadway surface. The accuracy of the water-cement ratio directly determines the concrete support strength and construction efficiency.

[0003] The current wet shotcrete machine has the drawback that the mixing water relies on the operator's visual estimation or experience to add, lacking a continuous metering mechanism, which leads to fluctuations in the water-cement ratio exceeding the allowable range. According to the engineering case study "Application of Cement Mixing Piles in Soft Soil Foundation Treatment of Kinmen Water Supply Pumping Station," uncontrolled water-cement ratios cause uneven mixing of the slurry, resulting in a decrease in the bearing capacity of the foundation.

[0004] The design of a vortex-type shotcrete machine addresses the above problems by designing a vortex structure. Although water injection is implemented by increasing the diameter of the hopper, the system pressure still limits the water supply and causes mixing delays. The measured dust concentration on site exceeds the safety standard, which fails to meet the requirements of the mine working environment.

[0005] Therefore, we provide an automatic quantitative water supply device to solve the above problems. Utility Model Content

[0006] To address the problems existing in the prior art, this utility model provides an automatic quantitative water supply device. It monitors flow data in real time using a mine explosion-proof turbine flow sensor and dynamically adjusts the opening of the solenoid valve according to a preset program to effectively control the water supply effect, eliminate the defect of insufficient water supply in ejector water supply, and ensure the uniformity of slurry.

[0007] To achieve the above objectives, this utility model employs an automatic quantitative water supply device, comprising: a water supply system installed on the side of a wet shotcrete machine, the water supply system including a straight pipe and a first galvanized tee connected sequentially along the water supply direction, the lateral interface of the first galvanized tee being connected to a first pneumatic ball valve, the axial outlet of the first galvanized tee being connected to a first straight pipe, the outlet end of the first straight pipe being connected to a galvanized elbow, the outlet end of the galvanized elbow being connected to a second straight pipe, the outlet end of the first pneumatic ball valve being connected in series with a Y-type filter, a first flange pipe, a mining explosion-proof turbine flow sensor, a second flange pipe, and a third straight pipe, the second straight pipe and the third straight pipe being connected through a second galvanized tee, the output end of the second galvanized tee being connected to the wet shotcrete machine.

[0008] As a further optimization of the above solution, the first flange pipe and the second flange pipe are connected by a flange assembly, which includes a hexagonal head bolt, a flat washer, a spring washer, and a hexagonal nut.

[0009] As a further optimization of the above solution, it also includes a straight plate installed on a concrete base, and the water supply device as a whole is fixed to the straight plate by a fixing component.

[0010] As a further optimization of the above solution, the control end of the first pneumatic ball valve is connected to a solenoid valve, and the signal output end of the mine explosion-proof turbine flow sensor is connected to a PLC controller. The PLC controller dynamically adjusts the opening degree of the solenoid valve through a program file.

[0011] As a further optimization of the above solution, a manual maintenance valve is provided between the first galvanized tee and the first pneumatic ball valve.

[0012] As a further optimization of the above solution, the fixing component includes a screw fixed to the straight plate. The top of the screw forms a fixing top surface with an annular top surface. A first threaded hole is provided at the center of the annular top surface. A hollow fixing carrier is inserted and installed on the annular top surface. Two U-shaped openings are formed on the two side walls of the fixing carrier. The first, second, and third straight tubes all pass through the two U-shaped openings. A second threaded hole is formed at the center of the fixing carrier. The first and second threaded holes are connected by a locking pin. The outer edge of the fixing carrier is provided with an external thread, and the locking ring and the inner surface are provided with an internal thread that matches the external thread.

[0013] As a further optimization of the above solution, the fixing component is a U-shaped hoop plate.

[0014] The automatic quantitative water supply device of this utility model has the following beneficial effects:

[0015] This utility model discloses an automatic quantitative water supply device, which is directly installed on the side of a wet shotcrete machine, reducing the floor space occupied by the water supply device and adapting to the limitations of narrow working faces underground.

[0016] This utility model discloses an automatic quantitative water supply device that collects water supply flow data in real time through a mine explosion-proof turbine flow sensor. The PLC controller dynamically adjusts the opening of the solenoid valve based on a preset algorithm to effectively control the water supply, eliminate the inherent defect of insufficient water supply in ejector water supply technology, and reduce water-cement ratio fluctuations.

[0017] This utility model discloses an automatic quantitative water supply device. Through the double U-shaped opening through-type design of the fixed carrier, the first, second, and third straight pipes are inserted and positioned at one time, effectively fixing the three water supply pipes to the side of the wet shotcrete machine. At the same time, the fixed carrier and the water supply pipes are detachably combined, so that during the disassembly process, there is no need to remove the fixed carrier from the wet shotcrete machine. The water supply pipes and the fixed carrier can be quickly disassembled and assembled by removing the locking ring.

[0018] Referring to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating how the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope as a result, and the embodiments of the present invention include many changes, modifications and equivalents. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an automatic quantitative water supply device;

[0020] Figure 2 In this utility model Figure 1 Enlarged structural diagram at point A;

[0021] Figure 3 This is a schematic diagram of the U-shaped hoop plate in this utility model;

[0022] Figure 4 This is a schematic diagram of the screw structure in this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the fixed carrier in this utility model.

[0024] In the diagram: 1. Water supply system; 2. Straight pipe; 3. First galvanized tee; 4. First pneumatic ball valve; 5. First straight pipe; 6. Galvanized bend; 7. Second straight pipe; 8. Y-type filter; 9. First flange pipe; 10. Mining explosion-proof turbine flow sensor; 11. Second flange pipe; 12. Third straight pipe; 13. Second galvanized tee; 14. Hex head bolt; 15. Flat washer; 16. Spring washer; 17. Hex nut; 18. Straight plate; 19. Solenoid valve; 20. PLC controller; 21. Manual maintenance valve; 22. Screw; 23. Fixed top surface; 24. Annular top surface; 25. First threaded hole; 26. Fixed carrier; 27. U-shaped opening; 28. Second threaded hole; 29. ​​Locking screw; 30. External thread; 31. Internal thread; 32. U-shaped clamp. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope.

[0026] It should be noted that when an element is referred to as "set on" or "provided with" another element, it can be directly on the other element or there may be an intermediate element. When an element is referred to as "connected to" or "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. "Fixed connection" means fixed connection. There are many ways of fixed connection, which are not within the scope of protection of this document. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0027] Unless otherwise defined, 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. The terms used in the description herein are for the purpose of describing particular embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Please refer to the instruction manual appendix. Figure 1-5 This utility model provides a specific embodiment of an automatic quantitative water supply device, which includes the following structure:

[0029] Water supply system 1: Water supply system 1 is located on the side of the wet shotcrete machine. Specifically, a straight plate 18 is installed on the side of the wet shotcrete machine. The straight plate 18 is directly fixed to the side of the wet shotcrete machine by means of welding, for example. Water supply system 1 is fixed to the straight plate 18 on the side of the wet shotcrete machine by a fixing component.

[0030] More specifically, in this embodiment, the water supply system 1 includes a straight pipe 2 and a first galvanized tee 3 connected sequentially along the water supply direction. The lateral interface of the first galvanized tee 3 is connected to a first pneumatic ball valve 4, and the axial outlet of the first galvanized tee 3 is connected to a first straight pipe 5. The outlet end of the first straight pipe 5 is connected to a galvanized elbow 6, and the outlet end of the galvanized elbow 6 is connected to a second straight pipe 7. The outlet end of the first pneumatic ball valve 4 is connected in series with a Y-type filter 8, a first flange pipe 9, a mining explosion-proof turbine flow sensor 10, a second flange pipe 11, and a third straight pipe 12. The second straight pipe 7 and the third straight pipe 12 are connected through a second galvanized tee 13, and the output end of the second galvanized tee 13 is connected to a wet shotcrete machine.

[0031] More specifically, a flange assembly is provided between the first flange pipe 9 and the second flange pipe 11. The flange assembly includes hexagonal head bolts 14, flat washers 15, spring washers 16, and hexagonal nuts 17. Specifically, two flange plates are provided at the joint between the flange pipe and the mine explosion-proof turbine flow sensor 10. Hexagonal head bolts 14 are inserted at both ends of the two flange plates, and hexagonal nuts 17 are used to lock the hexagonal head bolts 14. Flat washers 15 and spring washers 16 are provided between the hexagonal nuts 17 and the flange plates. Thus, the mine explosion-proof turbine flow sensor 10 is effectively placed between the first flange pipe 9 and the second flange pipe 11 through the flange assembly, so as to realize the effective monitoring of water flow.

[0032] Furthermore, in this embodiment, a second pneumatic ball valve is provided on the second straight pipe 7, and the opening and closing of the second straight pipe 7 is controlled by the second pneumatic ball valve.

[0033] Furthermore, in this embodiment, the pneumatic ball valve is connected to the PLC controller 20 via the solenoid valve 19, and the flow sensor signal is output to the PLC controller 20 to dynamically adjust the opening and closing of the solenoid valve 19.

[0034] In this embodiment, the PLC controller 20 uses the Cortex-M3 core processor LPC1758 as the central processing unit. It mainly consists of a power conversion unit, a data storage unit, a communication network interface unit, a PWM output unit, and a digital output unit. Specifically, the power conversion unit converts 127 / 1140V AC power into 5V and 3.3V power used by the internal modules. The wireless data transmission unit uses the CC1100 chip and the WIFI protocol. It periodically receives wireless network control commands, which are then processed by the MCU logic and output as control signals by the PWM output unit and the digital output unit. The LED indicators include a power indicator, a ready indicator, a communication indicator, and a fault indicator. Different colors illuminate to represent different on / off indication signals, providing a basis for debugging, indication, and fault finding.

[0035] In terms of software communication design, the software functions implemented in this embodiment are as follows: configuring the WLAN chip to ensure the communication function of the PLC controller 20; collecting return signals from various sensors, assembling them into packets, and sending them to the PLC controller 20; LED lights indicating power status, communication status, and fault status; receiving data packets sent by the PLC controller 20 and processing them accordingly.

[0036] Furthermore, a manual maintenance valve 21 is provided between the first galvanized tee 3 and the pneumatic ball valve.

[0037] In this embodiment, the fixing component has various structures, such as fixing with ropes or flanges. Preferably, in some embodiments, a U-shaped hoop plate 32 is used.

[0038] Furthermore, to further improve the fixing effect of the fixing component in this embodiment, the fixing component includes a screw 22 fixed on the straight plate 18. The top of the screw 22 forms a fixing top surface 23, which has an annular top surface 24. A first threaded hole 25 is provided at the center of the annular top surface 24. A hollow fixing carrier 26 is inserted and installed on the annular top surface 24. Two U-shaped openings 27 are formed on the two side walls of the fixing carrier 26. The first straight tube 5, the second straight tube 7, and the third straight tube 12 all pass through the two U-shaped openings 27. A second threaded hole 28 is formed at the center of the fixing carrier 26. The first threaded hole 25 and the second threaded hole 28 are connected by a locking pin 29. The outer edge of the fixing carrier 26 is provided with an external thread 30, and the locking ring and the inner surface are provided with an internal thread 31 that is in mate with the external thread 30.

[0039] In this embodiment, the double U-shaped opening 27 allows the first straight pipe 5, the second straight pipe 7, and the third straight pipe 12 to be inserted and positioned at one time. The water supply pipe and the fixed carrier 26 can be separated by unscrewing the locking ring. The maintenance process does not require disassembling the carrier base, reducing the disassembly and assembly time.

[0040] The automatic quantitative water supply device provided in this embodiment operates as follows:

[0041] External water enters the first galvanized tee 3 via straight pipe 2, and then splits into two outputs. In the main output path, water flows through a pneumatic ball valve, a Y-type filter 8, a mine-use explosion-proof turbine flow sensor 10, and a third straight pipe 12. In the bypass backup output path, water flows through the first straight pipe 5, a galvanized bend 6, and a second straight pipe 7. The two water streams converge at the second galvanized tee 13 and are then delivered to the wet shotcrete machine.

[0042] During this process, the explosion-proof turbine flow sensor 10 for mining uses collects the main channel flow data in real time and transmits the signal to the PLC controller 20. The PLC controller 20, with a Cortex-M3 core processor as its core, compares the flow data with the preset water-ash ratio parameter. The PLC controller 20 generates control commands through the PWM output unit to dynamically adjust the opening of the solenoid valve 19. The solenoid valve 19 drives the pneumatic ball valve to act, so that the actual flow matches the target value.

[0043] During this process, when the Y-type filter 8 is clogged or the flow sensor malfunctions, the manual maintenance valve 21 is opened to switch to the bypass, the main pneumatic ball valve is closed, and the pneumatic second straight pipe 7 is opened (controlled by the second pneumatic ball valve).

[0044] This embodiment provides a method for assembling and disassembling the fixing component, and the working process is as follows:

[0045] When it is necessary to dismantle the straight pipe structure, loosen the locking ring and move the first straight pipe 5, the second straight pipe 7, and the third straight pipe 12 laterally out of the U-shaped opening 27.

[0046] When it is necessary to fix the straight pipe structure, move the first straight pipe 5, the second straight pipe 7, and the third straight pipe 12 laterally into the U-shaped opening 27 and tighten the locking ring.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic water-quantifying supply device, characterized by comprising: include: A water supply system (1) installed on the side of the wet shotcrete machine includes a straight pipe (2) and a first galvanized tee (3) connected sequentially along the water supply direction. The lateral interface of the first galvanized tee (3) is connected to a first pneumatic ball valve (4). The axial outlet of the first galvanized tee (3) is connected to a first straight pipe (5). The outlet end of the first straight pipe (5) is connected to a galvanized elbow (6). The outlet end of the galvanized elbow (6) is connected to a second straight pipe (7). The outlet end of the first pneumatic ball valve (4) is connected in series with a Y-type filter (8), a first flange pipe (9), a mine explosion-proof turbine flow sensor (10), a second flange pipe (11), and a third straight pipe (12). The second straight pipe (7) and the third straight pipe (12) are connected through a second galvanized tee (13). The output end of the second galvanized tee (13) is connected to the wet shotcrete machine.

2. The automatic water-quantifying supply device according to claim 1, characterized in that: The first flange pipe (9) and the second flange pipe (11) are connected by a flange assembly, which includes a hexagonal head bolt (14), a flat washer (15), a spring washer (16) and a hexagonal nut (17).

3. The automatic water-quantifying supply device according to claim 2, characterized in that: It also includes a straight plate (18) installed on the wet shotcrete machine, and the water supply device is fixed to the straight plate (18) by a fixing component.

4. The automatic water-quantifying supply device according to claim 3, characterized in that: The control end of the first pneumatic ball valve (4) is connected to the solenoid valve (19), and the signal output end of the mine explosion-proof turbine flow sensor (10) is connected to the PLC controller (20). The PLC controller (20) dynamically adjusts the opening degree of the solenoid valve (19) through the program file.

5. The automatic water-quantifying supply device according to claim 4, characterized in that: A manual maintenance valve (21) is provided between the first galvanized tee (3) and the first pneumatic ball valve (4).

6. The automatic water-quantifying supply device according to claim 5, characterized in that: The fixing component includes a screw (22) fixed on a straight plate (18). The top of the screw (22) forms a fixing top surface (23). The fixing top surface (23) has an annular top surface (24). A first threaded hole (25) is provided at the center of the annular top surface (24). A hollow fixing carrier (26) is inserted and installed on the annular top surface (24). Two U-shaped openings (27) are formed on the two side walls of the fixing carrier (26). The first straight tube (5), the second straight tube (7), and the third straight tube (12) all pass through the two U-shaped openings (27). A second threaded hole (28) is formed at the center of the fixing carrier (26). The first threaded hole (25) and the second threaded hole (28) are connected by a locking pin (29). The outer edge of the fixing carrier (26) is provided with an external thread (30). The locking ring and the inner surface are provided with an internal thread (31) that matches the external thread.

7. The automatic water-quantifying supply device according to claim 6, characterized in that: The fixing component is a U-shaped hoop plate (32).

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