KR200292843Y1 - An automatic control device of the amount of injecting grout for boring and grouting - Google Patents

Abstract

The present invention relates to an apparatus for automatically adjusting the injection amount of the chemical liquid injected during boring grouting operation, and more particularly, a solid fire storage tank for storing solid fire, etc., and a grout for mixing the solid fire with water to form a chemical liquid. Boring grouting system consisting of a mixer, a grout pump mounted on the chemical liquid transfer pipe between the grout mixer and the boring grouting equipment to pump the chemical liquid into the boring grouting equipment, and a boring grouting equipment for grouting the ground. And a depth measuring device attached to the boring grouting device to grasp the depth and excavation speed of the ground to be excavated in real time, and transmit a voltage signal set according to the excavation speed to the valve adjustment control unit, and a voltage signal transmitted from the depth measuring device. The amount of chemical solution is automatically And a valve control control unit for precisely adjusting the flow control valve based on the information of whether the amount of chemical liquid is inputted in real time as a current signal from the flow measuring device at the same time. It is installed in the flow control valve that controls the opening and closing of the valve by the regulating control part, and the chemical liquid transfer pipe connecting the grout pump and the swivel. The present invention relates to a boring grouting chemical liquid injection amount automatic control device which is composed of a flow rate measuring device which converts a signal into a valve control control part and automatically adjusts and supplies the chemical liquid injection amount according to the ground excavation speed of the real-time boring grouting equipment.

Description

An automatic control device of the amount of injecting grout for boring and grouting}

The present invention relates to an apparatus for automatically adjusting the injection amount of the chemical liquid injected during boring grouting operation, and more particularly, a solid fire storage tank for storing solid fire, etc., and a grout for mixing the solid fire with water to form a chemical liquid. Boring grouting system consisting of a mixer, a grout pump mounted on the chemical liquid transfer pipe between the grout mixer and the boring grouting equipment to pump the chemical liquid into the boring grouting equipment, and a boring grouting equipment for grouting the ground. And a depth measuring device attached to the boring grouting device to grasp the depth and excavation speed of the ground to be excavated in real time, and transmit a voltage signal set according to the excavation speed to the valve adjustment control unit, and a voltage signal transmitted from the depth measuring device. The amount of chemical solution is automatically And a valve control control unit for precisely adjusting the flow control valve based on the information of whether the amount of chemical liquid is inputted in real time as a current signal from the flow measuring device at the same time. It is installed in the flow control valve that controls the opening and closing of the valve by the regulating control part, and the chemical liquid transfer pipe connecting the grout pump and the swivel. The present invention relates to a boring grouting chemical liquid injection amount automatic control device which is composed of a flow rate measuring device which converts a signal into a valve control control part and automatically adjusts and supplies the chemical liquid injection amount according to the ground excavation speed of the real-time boring grouting equipment.

In general, the boring grouting method is a method that is applied to reinforce the boring device and grouting when a high risk of safety of buildings or structures is caused by the order to prevent the inflow of water, reinforcement or ground subsidence of soft ground. Injecting the chemical solution into the grouting injection device while drilling the hole to a predetermined depth using the injection device or by stirring and mixing the raw soil and the chemical solution to solidify it to reinforce the perfect order or the ground, and the system of the boring grouting process is a grout Through the mixer and grouting pump, the chemical liquid mixed with solid material, cement and a large amount of water is continuously supplied to the boring grouting equipment through the chemical transfer pipe as the initial injection amount, and is loaded through the chemical liquid injection hole of the rod during boring and grouting processes. It is ejected into chemical liquid ejection holes such as agitating blades provided at the tip. It is registered.

In the process of injecting a chemical solution while drilling the ground using a conventional boring grouting system, the speed of boring (excavation) is changed according to the characteristics and structure of the ground to be drilled. However, since the injection amount of the chemical liquid ejected through the grouting equipment is always constant, it is relatively excessively injected compared to the depth of boring (excavation) .In contrast, when the ground condition is soft, the drilling speed of the boring equipment is increased, but the grouting equipment is Since the amount of injected chemical solution is relatively under-injected compared to the depth of boring (excavation), the amount of injected chemical solution during boring grouting varies depending on the characteristics and structure of the ground, resulting in uneven mixing of the excavated land and the injected chemical solution. There is a problem that can not be firm and uniform construction The.

The present invention is to solve this problem by automatically controlling the injection amount of the chemical liquid according to the excavation speed of the boring grouting equipment measured in real time by injecting the excavated land and the chemical liquid uniformly mixed according to the characteristics and structure of the ground The purpose is to ensure a solid and uniform construction.

In order to achieve this object, the present invention uses a depth measuring device and method for boring grouting (patent application No. 10-2002-0028689) previously filed by the applicant, and is fixedly attached to the head end of the boring grouting equipment. Depth measurement device that grasps the depth and excavation speed of the excavated ground in real time and transmits the voltage signal set according to the excavation speed of the ground to the valve control control unit, and adjusts the flow control valve according to the voltage signal transmitted from the depth measurement device By adjusting the amount of chemical solution automatically and at the same time, the flow control valve that accurately adjusts the flow control valve according to the information of whether the amount of the chemical liquid is input by receiving the current flow rate in real time as a current signal from the flow measuring device. And, the flow rate control to control the opening and closing of the valve by the valve control control unit The flow rate measuring device is installed in the chemical liquid transfer pipe connecting the grout and grout pump and the swivel and measures the flow rate of the supplied chemical liquid using a flow measuring sensor, and converts the measured flow rate information into a current signal and transmits it to the valve adjustment control unit. It consists of the features of the present invention.

1 is a schematic diagram of a configuration applying the present invention boring grouting chemical liquid injection amount automatic control device

Figure 2 is a flow chart of the boring grouting chemical liquid injection amount control device of the present invention

Figure 3 is a schematic diagram of the depth measuring device of the present invention boring grouting chemical injection amount automatic control device

Figure 4 is a flow chart of the depth measuring device of the boring grouting chemical solution injection control device of the present invention

<Description of Symbols for Main Parts of Drawings>

1. Depth measurement device 2. Boring grouting equipment

3. Depth measurement section 4. Depth display section

5. Head 6. Housing

7. Chain gear part 8. Encoder

9. Incision groove 10. Bracket

11. Plug 12. Fixing bolt

13. Center shaft insertion hole 14. Chain

15. Central axis 16. Coupling

17.Gear 18.Rod

19. Fixture 20. Weight

21. Axes 22. Receiver

23. Central processing unit 24. Output unit

25.Bit 26.Stirring wing

27.hole 28.reader

29. Fire retardant tank 30. Grout mixer

31. Swivel 32. Grout pump

33. Valve control control part 34. Flow control valve

35. Flow measurement device 36. Chemical transfer pipe

37. Flow sensor

Referring to the configuration of the present invention in detail as follows.

1 to 4, the boring grouting chemical injection amount automatic control device of the present invention is a solid fire storage tank 29 for storing solid fire or cement, and a grout mixer for mixing the solid fire and water to form a chemical liquid The grout pump 30 is mounted to the chemical liquid transfer pipe 36 between the grout mixer 30 and the swivel 31 of the boring grouting equipment 2 to pump the chemical liquid and to supply it into the boring grouting equipment 2. In the general boring grouting system consisting of (32), and boring grouting equipment (2) for grouting the ground, the depth measuring device (1), the valve control control unit (33) and the flow control valve (34) The flow rate measuring device 35 is provided to automatically adjust and supply the real-time chemical injection amount according to the underground drilling speed of the boring grouting equipment 2.

Depth measurement device (1) is installed in the boring grouting equipment (2) to grasp and display in real time the depth and excavation speed of the ground to be excavated, and at the same time to the valve control control unit 33 to set the voltage signal according to the excavation speed As a measuring device to be transmitted, the depth measuring part 3 and the depth display part 4 are provided.

The depth measuring unit 3 is fixedly attached to the tip of the head portion 5 of the upper end of the leader 28 of the boring grouting equipment 2, and measures the depth of the hole 27 drilled in the ground to display a constant data signal. The part to be transmitted to (4) is comprised by the housing 6, the chain gear part 7, and the encoder 8. As shown in FIG.

The housing 6 is a cylindrical body for supporting the chain gear part 7 and the encoder 8 provided therein, and the chain of the chain gear part 7 is located on one side of the lower side where the chain gear part 7 is located. The incision groove 9 for moving 14 is formed, and a bracket 10 is formed at one end thereof so that the housing 6 is fixedly attached to the tip of the head part 5 by a bolt, and the other end thereof. The plug 11 is to be blocked by the stopper 11, the stopper 11 is fixed to the housing 6 with a conventional fixing bolt 12 and the central shaft insertion hole 13 is drilled in the center of the stopper 11 The central shaft 15 of the chain gear portion 7 is inserted so as to stably rotate inside the housing 6.

The chain gear portion 7 is composed of a central shaft 15 and a chain 14, and the central shaft 15 is integrally fixed to the center of the gear 7 and the gear 7 which rotates by the drive of the chain 14 ( It is the part for converting the moving distance of the chain 14 into the rotation speed of the central axis 15 by rotating 15) and operating the encoder 8 connected with this central axis 15. FIG.

The central shaft 15 is a part for rotating the shaft 21 of the encoder 8, one end of which is inserted into the central axis insertion hole 13 and the other end of the encoder 8 through the coupling 16. It is fixedly connected to the shaft 21 so that the shaft 21 of the encoder 8 rotates together by the rotation of the central shaft 15, and the center of the position where the cutout groove 9 of the housing 6 is formed. A gear 17 driven by the chain 14 is fixedly attached to the shaft 15 so that the central shaft 15 is rotated while the gear 17 rotates as the chain 14 moves.

Chain 14 is a part for rotating the gear 17 is a length corresponding to the length of the rod 18 of the boring grouting equipment (2) and is to move through the cutting groove (9) of the housing (6), A fixing device 19 is provided at one end of the chain 14 so as to be fixed to the upper portion of the rod 18 of the boring grouting equipment 2, and the weight 20 is fixedly attached to the other end thereof. When the rod 18 is inserted into the ground during the boring operation of the equipment 2, the chain 14 is driven while the chain 14 is fixed at one end to the rod 18 by the up and down movement of the rod 18. ) Is rotated.

The encoder 8 is connected to the axis 21 and the central axis 15 to detect the rotation of the central axis 15, and the rotation speed of the central axis 15 according to the driving of the chain 14 is constant data. It outputs as a signal and transmits to the depth display part 4 by wire or wirelessly.

The depth display unit 4 receives the data (pulse) signal transmitted from the encoder 8 of the depth measurement unit 3, and the depth and the excavation of the hole 27 drilled through the resolution and the data signal inherent to the encoder 8. It calculates and displays the speed in real time and at the same time transmits a predetermined voltage signal according to the excavation speed to the valve adjustment control unit 33, the receiving unit 22, the central processing unit 23 and the output unit 24 The receiving unit 22 is a portion for receiving a data signal generated by the encoder 8 of the depth measuring unit 3 through a wired or wireless connection. The receiving unit 22 receives the data signal generated by the encoder 8 from the central processing unit 23. The central processing unit 23 converts the transmitted data signal into an accurate value, and calculates the resolution of the encoder 8 and the depth of the hole 27 drilled through the transmitted data signal in real time. And the perforated holes ( The drilling speed of the boring grouting equipment 2 is calculated in real time through the depth of 27, and the output unit 24 displays the numerical value converted through the central processing unit 23 in real time on the liquid crystal. Constant voltage signal is sent to the valve adjustment control unit 33.

The voltage signal is generally set to 0 to 10V, so that a low value voltage is output when the excitation speed is low, while a high value voltage is output when the excitation speed is fast.

The valve control control unit 33 automatically adjusts the injection amount of the chemical liquid by controlling the opening and closing of the flow control valve 34 by controlling the motor of the flow control valve 34 according to the voltage signal transmitted from the depth measuring device 1. At the same time, the flow rate control valve 34 is precisely adjusted based on the information of whether the amount of the chemical liquid is input in real time as the current signal is input from the flow rate measuring device 35 as a current signal. .

The current signal transmitted from the flow rate measuring device 35 is in the range of 4 to 20 mA, and the current signal is converted into a voltage signal again by the valve control control unit 33 so as to precisely control the flow control valve 34.

The valve control control unit 33 in the present invention used a SAMSON TROVIS 6493 model, the voltage signal (0 ~ 10V) transmitted from the depth measuring device (1) and the current signal transmitted from the flow rate measuring device (35) 4 ~ 20mA) to control the injection amount of the chemical liquid by adjusting the motor of the flow control valve 34 so that the correct chemical liquid is supplied according to the real-time drilling speed of the boring grouting equipment (2).

The flow regulating valve 34 is mounted on the chemical liquid conveying pipe 36 between the grout pump 32 and the swivel 31 and in accordance with the voltage signal from the valve regulating control part 33, the motor in the flow regulating valve 34. Is controlled automatically and the opening and closing of the flow control valve 34 is controlled by this motor to adjust the supply amount of the chemical liquid flowing through the chemical delivery pipe (36), when the power is cut off the flow control valve 34 is automatically It is blocked off so that the chemical liquid is not leaked.

In the present invention, the flow control valve 34 used a SAMSON TYPE 241-4 model of a hydraulic motor driving method, and other types of flow control valves for automatically adjusting the flow rate by other electrical signals may be used.

The flow rate measuring device 35 is mounted on the chemical liquid transfer pipe 36 after the flow rate control valve 34 to measure the flow rate of the chemical liquid supplied through the flow rate control valve 34 with the flow rate measuring sensor 37 provided therein. The measured flow rate information is output as a current signal and transmitted to the valve control controller 33 in real time.

In the present invention, the flow measuring device 35 uses a differential pressure digital flow meter, and converts the information of the flow rate measured by the flow measuring sensor 37 into a current signal within a range of 4 to 20 mA to adjust the valve control unit 33. To output

Referring to the operation of the present invention is as follows.

When one end of the chain 14 is connected to the upper portion of the rod 18 of the boring grouting equipment 2, boring grouting is performed in the ground through the bit 25 and the stirring blade 26 of the boring grouting equipment 2. As the rod 18 of the boring grouting equipment 2 penetrates into the ground, the chain 14 of the portion connected to the upper portion of the rod 18 is lowered, and at this time, the gear 17 is rotated by the drive of the chain 14. do. The rotation of the gear 17 causes the central shaft 15 to rotate as well, so that the shaft 21 of the encoder 8 connected to the central shaft 15 also rotates, thereby changing the rotational speed of the shaft 21 from the encoder 8. The constant data (pulse) signal is generated continuously.

The data signal generated from the encoder 8 is transmitted by wire or wirelessly and received by the receiving unit 22 of the depth display unit 4 installed in the worker's outside of the boring grouting equipment 2 and sent to the central processing unit 23, The central processing unit 23 calculates the depth and excavation speed of the hole 27 bored into the ground by using the transmitted data signal and the resolution inherent to the encoder 8. 23 is converted to the set voltage signal of 0 ~ 10V according to the excavation speed is sent to the valve control control unit 33 in real time.

Boring grouting equipment (2) through the chemical liquid delivery pipe 36 by adjusting the opening and closing of the flow control valve 34 controlled by the motor in accordance with the real-time output voltage signal (0 ~ 10V) in the valve control control unit 33 It automatically adjusts the amount of chemical liquid supplied to the system and simultaneously receives information on the flow rate currently being supplied from the flow measuring device 35 as a current signal (4 to 20 mA), and receives the current signal again as a voltage signal (0 to 10 V). By controlling the flow rate control valve 34 finely by switching to) to control so that the amount of the chemical liquid adjusted accurately.

In the flow rate measuring device 35, the flow rate supplied from the flow control valve 34 to the boring grouting equipment 2 is measured in real time by the flow rate measuring sensor 37, and the measured real-time flow rate information is converted into a current signal in the range of 4 to 20 mA. The switch is transmitted to the valve control control unit 33, and the valve control control unit 33 controls the input amount again as described above to adjust the flow rate control valve 34.

According to the present invention, the chemical liquid injection amount is automatically controlled according to the excavation speed of boring grouting equipment which is measured in real time, so that a uniform amount of chemical liquid can be continuously injected according to the characteristics and structure of the ground, and the chemical liquid is automatically controlled by the chemical liquid injection amount. This prevents oversupply of goods and reduces the cost of construction and makes the construction of solid and uniform grouting possible.

Claims (1)

A boring grouting device equipped with a depth measuring device, a high fire storage tank, a grout mixer, a grout pump, a chemical transfer pipe, and a boring grouting device, which is attached to a boring grouting device (2) and excavates the depth and excavation speed of the ground to be excavated in real time. Depth measurement device 1 for transmitting the voltage signal set in accordance with the excavation speed to the valve adjustment control unit 33 and the flow rate control valve 34 in accordance with the voltage signal transmitted from the depth measurement device (1) By adjusting the motor to automatically adjust the amount of chemical liquid injection and at the same time the current flow rate is inputted from the flow measuring device 35 in real time as a current signal flow control valve (34) Valve control control unit 33 for precisely controlling the flow rate, flow control valve 34 for controlling the opening and closing of the valve by the valve control control unit 33, and grout. It is mounted on the chemical liquid transfer pipe 36 connecting between the pin 32 and the swivel 31 and measures the flow rate supplied in real time using the flow rate measuring sensor 37 and converts the measured flow rate information into a current signal to Boring grouting chemical liquid injection amount automatic control device, characterized in that consisting of a flow rate measuring device 35 to be transmitted to the adjustment control unit (33).