A new integrated grouting device for mine

Abstract

A new integrated grouting device for mine, through the layout of explosion-proof electric control cabinet module, pneumatic control panel module, pneumatic actuator module, monitoring instrument module, pulp preparation module, slurry storage module and pipeline, the feeding equipment, water storage and water adding equipment, pulp preparation equipment, grouting equipment, monitoring equipment are highly integrated, the space occupied by the equipment is compressed, the complex wiring and piping process during use is avoided, the key data such as grouting pressure, grouting volume and slurry density can be automatically recorded during efficient grouting, and the grouting efficiency and engineering quality are ensured.

Description

Technical Field

[0001] This utility model belongs to the field of mining grouting technology, and specifically relates to a new type of integrated mining grouting device. Background Technology

[0002] Grouting is an important means of preventing geological disasters such as water damage, fire prevention and extinguishing, and reinforcement of fractured surrounding rock in coal mines. The grout mix design, especially the water-to-material ratio, and the mixing effect and efficiency, are key factors affecting the grouting project's effectiveness. Simultaneously, real-time monitoring and recording of parameters such as pipeline pressure, grout density, and grout volume during the grouting process are also crucial for ensuring the grouting effect.

[0003] Currently used automated grouting systems typically consist of independent grouting equipment, grouting equipment, and monitoring equipment. However, due to their large size and demanding site requirements, they are difficult to deploy in confined spaces such as longwall faces and small roadways, resulting in poor mobility and limited application. In confined spaces, pneumatic or electric mixing tanks are often used in conjunction with pneumatic grouting pumps and some monitoring instruments. However, this requires manual feeding, has a slow water addition rate (due to low underground water flow), and low mixing efficiency, making efficient continuous grouting impossible, and the water-cement ratio is difficult to control precisely. Furthermore, traditional mechanical instruments are not only complex to install and inconvenient to use, but also can only display data on-site and cannot achieve automatic recording, requiring frequent manual data recording, which is not only inefficient and prone to errors, but also affects construction management and grouting quality assessment.

[0004] While installing electronic monitoring instruments and recording devices in the grouting pipeline can achieve automatic data recording, it requires the deployment of an additional monitoring system, and the electronic instruments need a separate power supply. This leads to complex wiring and piping, high site requirements, and makes it unsuitable for confined spaces, as well as being difficult to move. In summary, current methods for efficient automated grout preparation, grouting, and monitoring recording in confined spaces are difficult to implement, severely impacting the continuity, efficiency, and construction quality of grouting projects. Summary of the Invention

[0005] The purpose of this utility model is to address the shortcomings of the existing technology by providing a new integrated grouting device for mining, which reduces the space occupied by the equipment, optimizes the wiring and pipe laying process, and ensures grouting efficiency and project quality.

[0006] To solve the above technical problems, the technical solution adopted by this utility model is as follows: A novel integrated grouting device for mining includes an explosion-proof electrical control cabinet module, a pneumatic control panel module, a pneumatic actuator module, a monitoring instrument module, a grouting module, a grout storage module, and pipelines. The pulping module includes a pulping tank, a vertical explosion-proof motor, and a centrifugal pump; the pulp storage module includes a pulp storage tank and a pulp agitator located inside the pulp storage tank. The explosion-proof electrical control cabinet module includes an explosion-proof cabinet shell and internal electrical components, and the internal electrical components monitor and record grouting information in real time; The pneumatic control panel module includes a control panel and a pressure regulating valve, a pump speed regulating valve, and a pneumatic motor speed regulating valve fixed on the control panel. The pressure regulating valve regulates the air source pressure and, in conjunction with the pump speed regulating valve and the pneumatic motor regulating valve, regulates the stirring of slurry in the slurry storage tank and the grouting rate. The pneumatic actuator module includes a pneumatic pilot valve, a first pneumatic butterfly valve, a second pneumatic butterfly valve, a pneumatic triplet, a third pneumatic butterfly valve, and a fourth pneumatic butterfly valve. The inner sides of the first and second pneumatic butterfly valves are connected to the outlet of the centrifugal pump via tee fittings, and their outer sides are connected to the inlet of the pulping tank and the inlet of the storage tank via pipes. The inner sides of the third and fourth pneumatic butterfly valves are connected to the inlet of the centrifugal pump via a tee, and their outer sides are connected to the water outlet of the water tank and the slurry suction port of the slurry mixing tank via pipes respectively. The pulping tank and centrifugal pump are fixed on the weighing plate, and the centrifugal pump is connected to the vertical explosion-proof motor. The bottom of the weighing plate is equipped with multiple weighing sensors.

[0007] It also includes a water storage module, which contains a water tank, a float and a push rod reversing valve, and the water tank is equipped with a water tank inlet and outlet.

[0008] The vertical explosion-proof motor is also equipped with a first solenoid valve, a second solenoid valve and a third solenoid valve on both sides, and the A port of the first solenoid valve is connected to the P port of the push rod reversing valve. The second solenoid valve A port is connected to the air inlet of the first pneumatic butterfly valve and the air outlet of the second pneumatic butterfly valve via a T-junction and an air pipe; the second solenoid valve B port is connected to the air outlet of the first pneumatic butterfly valve and the air inlet of the second pneumatic butterfly valve via a T-junction and an air pipe; the third solenoid valve A port is connected to the air inlet of the third pneumatic butterfly valve and the air outlet of the fourth pneumatic butterfly valve via a T-junction and an air pipe; the third solenoid valve B port is connected to the air outlet of the third pneumatic butterfly valve and the air inlet of the fourth pneumatic butterfly valve via a T-junction and an air pipe. The top rod reversing valve works in conjunction with the first, second, and third solenoid valves to realize the filling of water tank and pulping tank with water and the discharge of pulp to storage tank.

[0009] The pulping tank is also equipped with a feeding module for automatic feeding.

[0010] The pneumatic pilot valve is fixed on the base support of the grouting pump, and the air inlet P of the pneumatic pilot valve is connected to the speed regulating valve equipped on the grouting pump.

[0011] The monitoring instrument module includes a tuning fork density meter, an electromagnetic flow meter, and a digital pressure gauge. The tuning fork density meter is fixed to the density meter interface of the slurry storage tank, the electromagnetic flow meter is fixed to the slurry suction port of the slurry storage tank and the slurry inlet of the grouting pump, and the digital pressure gauge is installed in the grouting pipeline.

[0012] The beneficial effects of this utility model are: This utility model discloses a novel integrated grouting device for mining. By deploying an explosion-proof electrical control cabinet module, a pneumatic control panel module, a pneumatic actuator module, a monitoring instrument module, a grout preparation module, a grout storage module, and pipelines, it highly integrates the feeding equipment, water storage and addition equipment, grout preparation equipment, grouting equipment, and monitoring equipment, reducing the space occupied by the equipment and eliminating the complicated wiring and piping process during use. It can automatically record key data such as grouting pressure, grouting volume, and grout density while grouting efficiently, ensuring grouting efficiency and project quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a left-side view of the present invention; Figure 3 This is a right-side view of the present invention; Figure 4 This is a top view of the present invention; Figure 5 This is a three-dimensional representation of the present invention. Figure 1 ; Figure 6 This is a three-dimensional representation of the present invention. Figure 2 . Detailed Implementation

[0014] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0015] Please see Figure 1 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0016] This utility model provides a novel integrated grouting device for mining, such as... Figures 1 to 6 As shown.

[0017] A novel integrated grouting device for mining includes an explosion-proof electrical control cabinet module, a pneumatic control panel module, a pneumatic actuator module, a monitoring instrument module, a grouting module, a grout storage module, and pipelines. The grouting module includes a grouting tank 11, a vertical explosion-proof motor 12, and a centrifugal pump 13. The grout storage module includes a grout storage tank 21, a grout agitator 23 located inside the grout storage tank 21, and a pneumatic motor base 24 fixed on the top of the grout storage tank 21. The grout agitator 23 rotates under the drive of the pneumatic motor 22. The grout storage tank 21 also has a densitometer interface, a liquid inlet interface, and a grout suction interface. The explosion-proof electrical control cabinet module includes an explosion-proof cabinet shell 31 and internal electrical components, and the internal electrical components monitor and record grouting information in real time.

[0018] The pneumatic control panel module includes a control panel 411 and a pressure regulating valve 41, a pump speed regulating valve 42 and a pneumatic motor regulating valve 43 fixed on the control panel. The pressure regulating valve 41 regulates the air source pressure and, in conjunction with the pump speed regulating valve 42 and the pneumatic motor regulating valve 43, regulates the stirring and grouting rate of the slurry in the slurry storage tank 21.

[0019] The pneumatic actuator module includes a pneumatic pilot valve 51, a first pneumatic butterfly valve 52, a second pneumatic butterfly valve 53, a pneumatic triplet, a third pneumatic butterfly valve 54, and a fourth pneumatic butterfly valve 55. The inner sides of the first pneumatic butterfly valve 52 and the second pneumatic butterfly valve 53 are connected to the outlet of the centrifugal pump 13 via a tee, and their outer sides are connected to the inlet of the pulping tank 11 and the inlet of the pulp storage tank 21 via pipes.

[0020] The inner sides of the third pneumatic butterfly valve 54 and the fourth pneumatic butterfly valve 55 are connected to the inlet of the centrifugal pump 13 via a tee, and their outer sides are connected to the outlet of the water tank 14 and the suction port of the pulping tank 11 via pipes.

[0021] The pulping tank 11 and the centrifugal pump 13 are fixed on the weighing plate 15, and the centrifugal pump 13 is connected to the vertical explosion-proof motor 12. The bottom of the weighing plate 15 is equipped with a number of weighing sensors 150.

[0022] It also includes a water storage module, which includes a water tank 14, a float 144 and a push rod reversing valve 141. The water tank 14 is connected to a water tank replenishment pipe 142 and a water outlet, and the float is installed on a float base 143.

[0023] The pulping tank 11 is also equipped with a feeding module for automatic feeding, and the feeding module includes a feeding screw base 113, a feeding screw motor 111, a feeding screw housing 112, a screw and a screw shaft. The feeding screw housing 112 has an inlet and an outlet, and the feeding screw is fixed by welding and bolts. The outlet is connected to the pulping tank, and the inlet is connected to the screw base.

[0024] The vertical explosion-proof motor 12 is also provided with a first solenoid valve 121, a second solenoid valve 122 and a third solenoid valve 123 on both sides, and the A port of the first solenoid valve 121 is connected to the P port of the push rod reversing valve 141.

[0025] The A port of the second solenoid valve 122 is connected to the air inlet of the first pneumatic butterfly valve 52 and the exhaust port of the second pneumatic butterfly valve 53 via a T-junction and an air pipe; the B port of the second solenoid valve 122 is connected to the exhaust port of the first pneumatic butterfly valve 52 and the air inlet of the second pneumatic butterfly valve 53 via a T-junction and an air pipe; the A port of the third solenoid valve is connected to the air inlet of the third pneumatic butterfly valve 54 and the exhaust port of the fourth pneumatic butterfly valve 55 via a T-junction and an air pipe; the B port of the third solenoid valve 123 is connected to the exhaust port of the third pneumatic butterfly valve and the air inlet of the fourth pneumatic butterfly valve via a T-junction and an air pipe. The push rod reversing valve 141 cooperates with the first, second, and third solenoid valves to realize the filling of water tank 14 and pulping tank 11 with water and the discharge of pulp to storage tank 21.

[0026] The monitoring instrument module includes a tuning fork density meter 61, an electromagnetic flow meter 62, and a digital pressure gauge 63, all of which support 485 remote communication. The tuning fork density meter 61 is fixed to the density meter interface of the slurry storage tank, the electromagnetic flow meter 62 is fixed to the slurry suction port of the slurry storage tank and the slurry inlet of the grouting pump, and the digital pressure gauge 63 is installed in the grouting pipeline 25 and is located at the grouting port 26.

[0027] The pneumatic pilot valve 51 is fixed on the base support of the grouting pump, and the air inlet P of the pneumatic pilot valve is connected to the speed regulating valve equipped on the grouting pump.

[0028] The following description, in conjunction with specific embodiments, further illustrates the following: Explosion-proof electrical control cabinet modules mainly consist of an explosion-proof cabinet shell and internal electrical components, such as... Figure 1 As shown, the internal components include a power circuit breaker, transformer, industrial control computer, phase sequence protector, switch control module, explosion-proof electrical control buttons, relays, sensor 485 communication hub, buzzer alarm, first motor integrated protector, second motor integrated protector, indicator lights, first motor AC contactor, second motor AC contactor, and sensor transmitter. The industrial control computer is responsible for collecting data from the weighing sensor and various monitoring instruments through the sensor transmitter and communication, and monitoring the status of the electrical buttons in the explosion-proof cabinet to achieve automated control of the pulping process and monitoring, recording, and alarming information such as slurry density, grouting pressure, and grouting volume. The first and second motor integrated protectors provide overload protection for the vertical explosion-proof motor of the centrifugal pump and the feeding screw motor, respectively. The AC contactor is responsible for controlling whether the motors are operating.

[0029] Pneumatic control panel module such as Figure 1As shown, it includes a control panel 411 and an air source pressure gauge 412, a pressure regulating valve, a pump speed regulating valve 42, and a pneumatic motor regulating valve 43 fixed on it; the air source pressure gauge is responsible for displaying the on-site air source pressure status, the pressure regulating valve can adjust the air source pressure to meet the equipment use, and together with the pump speed regulating valve and the pneumatic motor regulating valve 43, the stirring of slurry in the slurry storage tank and the grouting rate can be adjusted.

[0030] Pneumatic actuator modules, such as Figure 2 As shown, it also includes a pneumatic motor 22 and a pneumatic reciprocating plunger grouting pump 27. During assembly, the explosion-proof electrical cabinet 29, pneumatic control panel, pneumatic triplet, grouting pump, grout storage tank, pneumatic ball valve, first pressure sensor, second pressure sensor, third pressure sensor and fourth pressure sensor are directly fixed on the equipment base plate using welding process and bolts. One end of the pneumatic triplet 28 is connected to the end of the air inlet pipe, and the other end is connected to the air source pressure gauge interface and pressure regulating valve interface.

[0031] The weighing plate is mounted on four load cells and tightly connected to them. The pulping tank and centrifugal pump are fixed to the weighing plate with bolts; the centrifugal pump is tightly connected to the vertical explosion-proof motor; the inner sides of the first and second pneumatic butterfly valves are connected to and fixed to the centrifugal pump outlet via tee fittings. The outer sides of the first and second pneumatic butterfly valves are connected to the inlet of the pulping tank and the inlet of the storage tank via pipes, respectively. The inner sides of the third and fourth pneumatic butterfly valves are connected to and fixed to the centrifugal pump inlet via tee fittings; the outer sides of the third and fourth pneumatic butterfly valves are connected to the water tank outlet and the pulping tank suction port via pipes, respectively; the two ends of the pneumatic ball valve 56 are connected to the water tank replenishment port and the water inlet interface, respectively.

[0032] The digital pressure gauge is installed in the grouting pipeline using a three-way component, and the end of the grouting pipeline is connected to the outlet of the grouting pump. The tuning fork density meter 61 is fixed to the density meter interface of the grout storage tank by a flange and bolts, and the electromagnetic flow meter 62 is fixed at both ends to the grout suction port of the grout storage tank 21 and the grout inlet of the grouting pump by a flange, pipe and bolts respectively.

[0033] The pneumatic pilot valve is fixed to the grouting pump base bracket using studs, with its air inlet P connected to the grouting pump speed control valve. The first solenoid valve's A port is connected to the push rod directional valve's P port, and the push rod directional valve's A and B ports are connected to the air inlet and exhaust port of the air-hole ball valve, respectively. The second solenoid valve's A port is connected to the first pneumatic butterfly valve's inlet and the second pneumatic butterfly valve's exhaust port using a tee and air pipe. The second solenoid valve's B port is connected to the first pneumatic butterfly valve's exhaust port and the second pneumatic butterfly valve's air inlet using a tee and air pipe. The third solenoid valve's A port is connected to the third pneumatic butterfly valve's inlet and the fourth pneumatic butterfly valve's exhaust port using a tee and air pipe. The third solenoid valve's B port is connected to the third pneumatic butterfly valve's exhaust port and the fourth pneumatic butterfly valve's air inlet using a tee and air pipe.

[0034] The grouting method is as follows: The staff first connects the equipment's air inlet, grouting inlet, and power outlet to the corresponding pipes and lines, while ensuring sufficient powder is present at the feeding auger base. The pneumatic motor speed control valve is used to activate the grout mixer, preventing uneven grout distribution and sedimentation. Then, the grouting pump is activated via the pump speed control valve to begin grouting.

[0035] Configure the ratio and weight of powder and water on the industrial control computer, set the grouting density, grouting pressure, and grouting flow rate, and set alarm values. Control the start and stop of the grouting information recording function and set the recording interval via mechanical buttons. Start the explosion-proof motor to start the centrifugal pump. The electrical control cabinet controls the first solenoid valve to open, the second solenoid valve to close, and the third solenoid valve to close. If the water tank is empty, the push rod reversing valve opens to control the ball valve to start replenishing water to the tank. After the tank is full, the push rod reversing valve closes. After 1-2 minutes, control the first solenoid valve to close, the second solenoid valve to open, and the third solenoid valve to close, starting to add water to the slurry tank. When the water weight reaches the target value, the first solenoid valve opens, the second solenoid valve closes, and the third solenoid valve closes. The AC contactor closes, and the water tank continues to be replenished until it is full and automatically stops. The feeding screw starts to add material to the slurry tank until the target powder weight is reached. After the slurry is continuously stirred in the slurry tank for 30 seconds, the first solenoid valve opens, the second solenoid valve closes, and the third solenoid valve opens, discharging the slurry into the storage tank. After the slurry is discharged, the first solenoid valve is closed (regardless of whether the water tank is full), the second solenoid valve is opened, and the third solenoid valve is closed to start adding water to the slurry tank.

[0036] The same pulping cycle was then repeated multiple times. During the pulping process, water was replenished to the water tank only during the water addition process. After being stirred by a mixer in the storage tank, the slurry was transported from the suction port to the injection port by the grouting pump. During the pulping process, the industrial control computer monitored and recorded the slurry density and injection volume in real time using an electromagnetic flow meter, a tuning fork density meter, and a digital pressure gauge. After the grouting project was completed, if the grouting information was needed, it could be exported from the embedded touch screen using a portable storage device (such as a USB flash drive).

[0037] If this patent uses terms such as "first" and "second" to define components, those skilled in the art should know that the use of "first" and "second" is merely for the convenience of describing this utility model and simplifying the description, and the above terms have no special meaning.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0039] In the description of this utility model, it should be understood that the terms "front", "rear", "left", "right", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

Claims

1. A novel integrated grouting device for mining, characterized in that: It includes explosion-proof electrical control cabinet module, pneumatic control panel module, pneumatic actuator module, monitoring instrument module, pulping module, pulp storage module, and pipeline; The pulping module includes a pulping tank, a vertical explosion-proof motor, and a centrifugal pump; the pulp storage module includes a pulp storage tank and a pulp agitator located inside the pulp storage tank. The explosion-proof electrical control cabinet module includes an explosion-proof cabinet shell and internal electrical components, and the internal electrical components monitor and record grouting information in real time; The pneumatic control panel module includes a control panel and a pressure regulating valve, a pump speed regulating valve, and a pneumatic motor speed regulating valve fixed on the control panel. The pressure regulating valve regulates the air source pressure and, in conjunction with the pump speed regulating valve and the pneumatic motor regulating valve, regulates the stirring of slurry in the slurry storage tank and the grouting rate. The pneumatic actuator module includes a pneumatic pilot valve, a first pneumatic butterfly valve, a second pneumatic butterfly valve, a pneumatic triplet, a third pneumatic butterfly valve, and a fourth pneumatic butterfly valve. The inner sides of the first and second pneumatic butterfly valves are connected to the outlet of the centrifugal pump via tee fittings, and their outer sides are connected to the inlet of the pulping tank and the inlet of the storage tank via pipes. The inner sides of the third and fourth pneumatic butterfly valves are connected to the inlet of the centrifugal pump via a tee, and their outer sides are connected to the water outlet of the water tank and the slurry suction port of the slurry mixing tank via pipes respectively. The pulping tank and centrifugal pump are fixed on the weighing plate, and the centrifugal pump is connected to the vertical explosion-proof motor. The bottom of the weighing plate is equipped with multiple weighing sensors.

2. The novel integrated grouting device for mining according to claim 1, characterized in that: It also includes a water storage module, which contains a water tank, a float and a push rod reversing valve, and the water tank is equipped with a water tank inlet and outlet.

3. A novel integrated grouting device for mining according to claim 2, characterized in that: The vertical explosion-proof motor is also equipped with a first solenoid valve, a second solenoid valve and a third solenoid valve on both sides, and the A port of the first solenoid valve is connected to the P port of the push rod reversing valve. The second solenoid valve A port is connected to the air inlet of the first pneumatic butterfly valve and the air outlet of the second pneumatic butterfly valve via a T-junction and an air pipe; the second solenoid valve B port is connected to the air outlet of the first pneumatic butterfly valve and the air inlet of the second pneumatic butterfly valve via a T-junction and an air pipe; the third solenoid valve A port is connected to the air inlet of the third pneumatic butterfly valve and the air outlet of the fourth pneumatic butterfly valve via a T-junction and an air pipe; the third solenoid valve B port is connected to the air outlet of the third pneumatic butterfly valve and the air inlet of the fourth pneumatic butterfly valve via a T-junction and an air pipe. The top rod reversing valve works in conjunction with the first, second, and third solenoid valves to realize the filling of water tank and pulping tank with water and the discharge of pulp to storage tank.

4. A novel integrated grouting device for mining according to claim 1, characterized in that: The pulping tank is also equipped with a feeding module for automatic feeding.

5. A novel integrated grouting device for mining according to claim 1, characterized in that: The pneumatic pilot valve is fixed on the base support of the grouting pump, and the air inlet P of the pneumatic pilot valve is connected to the speed regulating valve equipped on the grouting pump.

6. A novel integrated grouting device for mining according to claim 1, characterized in that: The monitoring instrument module includes a tuning fork density meter, an electromagnetic flow meter, and a digital pressure gauge. The tuning fork density meter is fixed to the density meter interface of the slurry storage tank, the electromagnetic flow meter is fixed to the slurry suction port of the slurry storage tank and the slurry inlet of the grouting pump, and the digital pressure gauge is installed in the grouting pipeline.

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