Liquid oxygen blasting quantitative filling network system

Abstract

The invention belongs to the technical field of mine blasting mining, and particularly relates to a liquid oxygen blasting quantitative filling network system which comprises a liquid oxygen storage tank and a blasting line network, the right side of the liquid oxygen storage tank is in threaded connection with a main liquid filling pipeline, and the right side of the main liquid filling pipeline is provided with a parallel filling connector; the parallel filling connector comprises a main liquid filling connector and a branch liquid filling connector, and a branch liquid filling pipeline is arranged on the right side of the parallel filling connector. A liquid oxygen filling system in liquefied air phase change fracturing rock mass operation is improved, a low-temperature mass flow meter and a flow pressure sensor are arranged on each branch liquid filling pipeline, liquid oxygen filling parameters of each liquid oxygen phase change energy storage pipe are monitored in real time, liquid oxygen filling is started and stopped through a low-temperature automatic control valve, and the liquid oxygen filling efficiency is improved. And the pressure and the quality of the liquid oxygen filled in the branch liquid filling pipelines are controlled, so that the safety of the filling system is ensured, and the device has the advantages of timely and accurate response and high safety coefficient.

Description

Technical Field

[0001] The invention belongs to the technical field of mine blasting and mining, and in particular relates to a liquid oxygen blasting quantitative filling network system. Background Art

[0002] The liquid oxygen filling network is an important part of the liquefied air phase change fracturing rock operation. The filling process involves steps such as liquid filling pipeline connection, pressure control, and quality control. At present, most of the processes of the liquid oxygen filling system in the liquid oxygen phase change fracturing rock operation carried out in mines are based on construction experience. The filling pipeline connections of the filling system are chaotic, and the pressure and flow rate of the liquid oxygen phase change energy storage tubes in the blastholes at different distances from the liquid oxygen tank truck cannot be accurately controlled when filling liquid oxygen. Most of the processes are manually operated, and there are shortcomings such as long liquid oxygen filling time, excessive volatilization of liquid oxygen during the filling process, low filling efficiency, and difficulty in controlling the quality of the filled liquid oxygen. Summary of the invention

[0003] The purpose of the present invention is to provide a liquid oxygen explosive quantitative filling network system, which solves the problems of the existing liquid oxygen filling network such as long liquid oxygen filling time, excessive volatilization of liquid oxygen during the filling process, low filling efficiency and difficulty in controlling the quality of filled liquid oxygen.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a liquid oxygen blasting quantitative filling network system, including a liquid oxygen storage tank and a detonating line network, the right side of the liquid oxygen storage tank is connected with a main liquid filling pipeline through a thread, the right side of the main liquid filling pipeline is provided with a parallel filling joint, the parallel filling joint includes a main liquid filling joint and a branch liquid filling joint, the right side of the parallel filling joint is provided with a branch liquid filling pipeline, the branch liquid filling pipeline includes a liquid filling joint 1 and a liquid filling joint 2, a low-temperature automatic control valve is provided on the branch liquid filling pipeline, a flow pressure sensor is provided on the branch liquid filling pipeline and located on the right side of the low-temperature automatic control valve, a low-temperature mass flowmeter is provided on the branch liquid filling pipeline and located on the right side of the flow pressure sensor, a liquid oxygen phase change energy storage tube is provided on the branch liquid filling pipeline and located on the right side of the low-temperature mass flowmeter, the number of the liquid oxygen phase change energy storage tubes is multiple, the multiple liquid oxygen phase change energy storage tubes are connected in series through the detonating line network, and an automatic controller is provided on the branch liquid filling pipeline.

[0005] The principle of the present invention is as follows: the liquid oxygen storage tank is used to store the gas source, which is low-temperature liquid oxygen; the parallel filling joint is used to divert the liquid oxygen filled in the liquid oxygen storage tank to each branch liquid-filling pipeline to ensure equal filling pressure; the branch liquid-filling pipeline is used to fill the liquid oxygen into the liquid oxygen phase-change energy storage tube; the low-temperature automatic control valve is used to start and stop the filling of liquid oxygen, and control the pressure and quality of the liquid oxygen filled in the branch liquid-filling pipeline; the flow pressure sensor is used to monitor the pressure of the liquid oxygen filled in the branch liquid-filling pipeline in real time; the low-temperature mass flowmeter is used to monitor the quality of the liquid oxygen filled in the branch liquid-filling pipeline in real time; the quality judgment module is used to judge the low pressure on the branch liquid-filling pipeline The monitoring data of the high-temperature mass flowmeter and the blasting network design are used to design the quality of liquid oxygen filled, and the alarm signal of the corresponding branch filling pipeline is output; the data receiving module is used to obtain the detection data of the low-temperature mass flowmeter and the flow pressure sensor; the pressure judgment module is used to judge the monitoring data of the flow pressure sensor on the branch filling pipeline and the pressure of liquid oxygen filled according to the blasting network design, and the alarm signal of the corresponding branch filling pipeline is output; the data processing module is used to process and judge the liquid oxygen filling parameters and the blasting network design parameters in real time; the intelligent control module is used to control the low-temperature automatic control valve to start and stop the filling of liquid oxygen, and control the pressure and quality of the liquid oxygen filled in the branch filling pipeline.

[0006] The beneficial effects of the present invention are as follows: the present application improves the liquid oxygen filling system in the liquefied air phase change fracturing rock operation, sets a low-temperature mass flowmeter and a flow pressure sensor in each branch filling pipeline, monitors the liquid oxygen filling parameters of each liquid oxygen phase change energy storage tube in real time, and uses a low-temperature automatic control valve to start and stop the filling of liquid oxygen, controls the pressure and quality of the liquid oxygen filled in the branch filling pipeline, so as to ensure the safety of the filling system, and has the advantages of timely and accurate response and high safety factor.

[0007] Furthermore, the main filling joint is connected to the main filling pipe by a threaded connection, and the branch filling joint is connected to the filling joint 1 by a threaded connection. Through the design of parallel filling joints, it can adapt to different numbers of blasting holes, and the single-head tinned red and black connecting buckle is connected to the copper wire of the liquid oxygen phase change energy storage tube, which is convenient for connecting the electric ignition head of the energy storage tube in series to the detonating wire network.

[0008] Furthermore, the second liquid filling connector is threadedly connected to the liquid oxygen phase change energy storage tube, and can be used to fill liquid oxygen into the liquid oxygen phase change energy storage tube through the design of a branch liquid filling pipeline.

[0009] Further, the automatic controller includes a quality judgment module, a data receiving module, a pressure judgment module, a data processing module and an intelligent control module. The intelligent control module is electrically connected to the data processing module, the data processing module is connected to the quality judgment module through wires, the data processing module is electrically connected to the pressure judgment module, the pressure judgment module is electrically connected to the data receiving module, the data receiving module is electrically connected to the quality judgment module, the quality judgment module is electrically connected to the pressure judgment module, and the quality judgment module, data receiving module, pressure judgment module, data processing module and intelligent control module are all electrically connected to the automatic controller.

[0010] Furthermore, the quality judgment module is used to judge the monitoring data of the low-temperature mass flowmeter on the branch liquid-filling pipeline and the numerical value of the mass of liquid oxygen designed to be filled in the blasting network. When the judgment result is less than, an alarm signal of the corresponding branch liquid-filling pipeline is output; the mass of liquid oxygen designed to be filled in the blasting network is the mass of liquid oxygen required to be filled in each liquid oxygen phase change energy storage tube calculated on average according to the total amount of liquid oxygen required to be filled according to the volume of blasting rock.

[0011] Furthermore, the data receiving module is used to obtain monitoring data of the cryogenic mass flow meter and the flow pressure sensor.

[0012] Furthermore, the pressure judgment module is used to judge the monitoring data of the flow pressure sensor on the branch filling pipeline and the numerical value of the liquid oxygen filling pressure designed by the blasting network. When the judgment result is greater than, an alarm signal of the corresponding branch filling pipeline is output.

[0013] Furthermore, the data processing module is used to process and determine the liquid oxygen filling parameters and the blasting network design parameters in real time, and the intelligent control module is used to control the low-temperature automatic control valve to start and stop the filling of liquid oxygen, and control the pressure and quality of the liquid oxygen filled in the branch filling pipeline, so that the pressure and quality are in a state less than the pre-set pressure and quality thresholds. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a liquid oxygen explosion quantitative filling network system according to an embodiment of the present invention;

[0015] Figure 2 It is a structural schematic diagram of parallel filling connectors of a liquid oxygen explosion quantitative filling network system according to an embodiment of the present invention;

[0016] Figure 3 It is a schematic diagram of the structure of branch liquid filling pipelines of the liquid oxygen explosion quantitative filling network system according to an embodiment of the present invention.

[0017] Figure 4This is a system diagram of an automatic controller of a liquid oxygen explosion quantitative filling network system according to an embodiment of the present invention.

[0018] The figure marks in the drawings of the specification include: 1. Liquid oxygen storage tank; 2. Main liquid filling pipeline; 3. Parallel filling joint; 3.1. Main liquid filling joint; 3.2. Branch liquid filling joint; 4. Branch liquid filling pipeline; 4.1. Filling joint one; 4.2. Filling joint two; 5. Low-temperature automatic control valve; 6. Flow pressure sensor; 7. Low-temperature mass flowmeter; 8. Liquid oxygen phase change energy storage tube; 9. Detonation line network; 10. Automatic controller; 11. Quality judgment module; 12. Data receiving module; 13. Pressure judgment module; 14. Data processing module; 15. Intelligent control module. DETAILED DESCRIPTION

[0019] The following is further described in detail through specific implementation methods:

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this embodiment provides a liquid oxygen blasting quantitative filling network system, including a liquid oxygen storage tank 1 and a detonating line network 9. The right side of the liquid oxygen storage tank 1 is connected with a main liquid filling pipe 2 through a thread. A parallel filling joint 3 is arranged on the right side of the main liquid filling pipe 2. The parallel filling joint 3 includes a main liquid filling joint 3.1 and a branch liquid filling joint 3.2. A branch liquid filling pipe 4 is arranged on the right side of the parallel filling joint 3. The branch liquid filling pipe 4 includes a filling joint 1 4.1 and a filling joint 2 4.2. The main liquid filling joint 3.1 is connected to the main liquid filling pipe 2 through a thread, and the branch liquid filling joint 3.2 is connected to the filling joint 1 4.1 through a thread. Through the design of the parallel filling joint 3, it can adapt to different numbers of blasting holes. The single-head tinned red and black connecting buckle is connected to the copper wire of the liquid oxygen phase change energy storage tube 8, which is convenient for connecting the electric ignition charge head of the energy storage tube in series to the detonating line network 9.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the liquid filling connector 2 4.2 is connected to the liquid oxygen phase change energy storage tube 8 by threads, and the liquid filling connector 2 4.2 is in contact with the detonating wire network 9. Through the design of the branch liquid filling pipeline 4, it can be used to fill liquid oxygen into the liquid oxygen phase change energy storage tube 8. A low-temperature automatic control valve 5 is arranged on the branch liquid filling pipeline 4, a flow pressure sensor 6 is arranged on the branch liquid filling pipeline 4 and on the right side of the low-temperature automatic control valve 5, a low-temperature mass flowmeter 7 is arranged on the branch liquid filling pipeline 4 and on the right side of the flow pressure sensor 6, a liquid oxygen phase change energy storage tube 8 is arranged on the branch liquid filling pipeline 4 and on the right side of the low-temperature mass flowmeter 7, the number of liquid oxygen phase change energy storage tubes 8 is multiple, and multiple liquid oxygen phase change energy storage tubes 8 are connected in series through the detonating wire network 9, and an automatic controller 10 is arranged on the branch liquid filling pipeline 4.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the automatic controller 10 includes a quality judgment module 11, a data receiving module 12, a pressure judgment module 13, a data processing module 14, and an intelligent control module 15. The intelligent control module 15 is electrically connected to the data processing module 14. The data processing module 14 is connected to the quality judgment module 11 through wires. The data processing module 14 is electrically connected to the pressure judgment module 13. The pressure judgment module 13 is electrically connected to the data receiving module 12. The data receiving module 12 is electrically connected to the quality judgment module 11. The quality judgment module 11 is electrically connected to the pressure judgment module 13. The quality judgment module 11, the data receiving module 12, the pressure judgment module 13, the data processing module 14, the intelligent control module 15 are all electrically connected to the automatic controller 10.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the quality judgment module 11 is used to judge the monitoring data of the low-temperature mass flowmeter 7 on the branch liquid-filling pipeline 4 and the numerical value of the mass of liquid oxygen designed to be filled in the blasting network. When the judgment result is less than, an alarm signal of the corresponding branch liquid-filling pipeline 4 is output; the mass of liquid oxygen designed to be filled in the blasting network is the mass of liquid oxygen that needs to be filled in each liquid oxygen phase change energy storage tube 8 calculated on average according to the total amount of liquid oxygen that needs to be filled according to the volume of blasting rock. The data receiving module 12 is used to obtain the monitoring data of the cryogenic mass flowmeter 7 and the flow pressure sensor 6. The pressure judgment module 13 is used to judge the monitoring data of the flow pressure sensor 6 on the branch filling pipeline 4 and the numerical value of the liquid oxygen filling pressure designed for the blasting network. When the judgment result is greater than, an alarm signal corresponding to the branch filling pipeline 4 is output. The data processing module 14 is used to process and judge the liquid oxygen filling parameters and the blasting network design parameters in real time. The intelligent control module 15 is used to control the cryogenic automatic control valve 5 to start and stop the filling of liquid oxygen, and control the pressure and quality of the liquid oxygen filled in the branch filling pipeline 4, so that the pressure and quality are in a state less than the pre-set pressure and quality thresholds.

[0024] The specific implementation process of the present invention is as follows: the liquid oxygen storage tank 1 is used to store the gas source, which is low-temperature liquid oxygen; the parallel filling joint 3 is used to divert the liquid oxygen filled in the liquid oxygen storage tank 1 to each branch liquid filling pipe 4 to ensure that the filling pressure is equal; the branch liquid filling pipe 4 is used to fill the liquid oxygen into the liquid oxygen phase change energy storage tube 8; the low-temperature automatic control valve 5 is used to start and stop the filling of liquid oxygen, and control the pressure and quality of the liquid oxygen filled in the branch liquid filling pipe 4; the flow pressure sensor 6 is used to monitor the pressure of the liquid oxygen filled in the branch liquid filling pipe 4 in real time; the low-temperature mass flowmeter 7 is used to monitor the quality of the liquid oxygen filled in the branch liquid filling pipe 4 in real time; the quality judgment module 11 is used to judge whether the monitoring data of the low-temperature mass flowmeter 7 on the branch liquid filling pipe 4 is consistent with the blasting network The network is designed to fill the liquid oxygen quality, and outputs the alarm signal of the corresponding branch filling pipeline 4; the data receiving module 12 is used to obtain the detection data of the cryogenic mass flowmeter 7 and the flow pressure sensor 6; the pressure judgment module 13 is used to judge the monitoring data of the flow pressure sensor 6 on the branch filling pipeline 4 and the blasting network design filling liquid oxygen pressure, and output the alarm signal of the corresponding branch filling pipeline 4; the data processing module 14 is used to process and judge the liquid oxygen filling parameters and the blasting network design parameters in real time; the intelligent control module 15 is used to control the cryogenic automatic control valve 5 to start and stop filling liquid oxygen, and control the pressure and quality of the liquid oxygen filled in the branch filling pipeline 4, so that the pressure and quality are in a state less than the preset pressure and quality thresholds.

[0025] The present application improves the liquid oxygen filling system in the liquefied air phase change fracturing rock operation, and sets a low-temperature mass flowmeter 7 and a flow pressure sensor 6 in each branch filling pipeline 4 to monitor the liquid oxygen filling parameters of each liquid oxygen phase change energy storage tube 8 in real time. A low-temperature automatic control valve 5 is used to start and stop the filling of liquid oxygen, and the pressure and quality of the liquid oxygen filled in the branch filling pipeline 4 are controlled to ensure the safety of the filling system. The application has the advantages of timely and accurate response and high safety factor.

[0026] It should be noted in advance that, in the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A liquid oxygen blasting quantitative filling network system, comprising a liquid oxygen storage tank and a detonating line network, characterized in that: The right side of the liquid oxygen storage tank is connected with a main liquid filling pipeline through a thread, and a parallel filling joint is arranged on the right side of the main liquid filling pipeline, and the parallel filling joint includes a main liquid filling joint and a branch liquid filling joint. A branch liquid filling pipeline is arranged on the right side of the parallel filling joint, and the branch liquid filling pipeline includes a liquid filling joint 1 and a liquid filling joint 2. A low-temperature automatic control valve is arranged on the branch liquid filling pipeline, a flow pressure sensor is arranged on the branch liquid filling pipeline and located on the right side of the low-temperature automatic control valve, a low-temperature mass flowmeter is arranged on the branch liquid filling pipeline and located on the right side of the flow pressure sensor, a liquid oxygen phase change energy storage tube is arranged on the branch liquid filling pipeline and located on the right side of the low-temperature mass flowmeter, and the number of the liquid oxygen phase change energy storage tubes is multiple, and the multiple liquid oxygen phase change energy storage tubes are connected in series through a detonation line network, and an automatic controller is arranged on the branch liquid filling pipeline.

2. The liquid oxygen explosion quantitative filling network system according to claim 1 is characterized in that: The main liquid filling joint is connected to the main liquid filling pipeline through a thread, and the branch liquid filling joint is connected to the liquid filling joint one through a thread.

3. The liquid oxygen explosion quantitative filling network system according to claim 1 is characterized in that: The second liquid filling joint is connected to the liquid oxygen phase change energy storage tube through threads.

4. The liquid oxygen explosion quantitative filling network system according to claim 1 is characterized in that: The automatic controller includes a quality judgment module, a data receiving module, a pressure judgment module, a data processing module and an intelligent control module. The intelligent control module is electrically connected to the data processing module. The data processing module is connected to the quality judgment module through wires. The data processing module is electrically connected to the pressure judgment module. The pressure judgment module is electrically connected to the data receiving module. The data receiving module is electrically connected to the quality judgment module. The quality judgment module is electrically connected to the pressure judgment module. The quality judgment module, the data receiving module, the pressure judgment module, the data processing module and the intelligent control module are all electrically connected to the automatic controller.

5. The liquid oxygen explosion quantitative filling network system according to claim 1 is characterized in that: The quality judgment module is used to judge the monitoring data of the low-temperature mass flowmeter on the branch liquid-filling pipeline and the numerical value of the mass of liquid oxygen designed to be filled in the blasting network. When the judgment result is less than, an alarm signal of the corresponding branch liquid-filling pipeline is output; the mass of liquid oxygen designed to be filled in the blasting network is the mass of liquid oxygen required to be filled in each liquid oxygen phase change energy storage tube calculated on average according to the total amount of liquid oxygen required to be filled according to the volume of blasting rock.

6. The liquid oxygen explosion quantitative filling network system according to claim 1 is characterized in that: The data receiving module is used to obtain monitoring data of the cryogenic mass flow meter and the flow pressure sensor.

7. The liquid oxygen explosion quantitative filling network system according to claim 1 is characterized in that: The pressure judgment module is used to judge the monitoring data of the flow pressure sensor on the branch liquid filling pipeline and the numerical value of the liquid oxygen filling pressure designed by the blasting network. When the judgment result is greater than, an alarm signal of the corresponding branch liquid filling pipeline is output.

8. The liquid oxygen explosion quantitative filling network system according to claim 1 is characterized in that: The data processing module is used for real-time processing and determination of liquid oxygen filling parameters and blasting network design parameters, and the intelligent control module is used for controlling the low-temperature automatic control valve to start and stop filling liquid oxygen, and to control the pressure and quality of liquid oxygen filled in the branch filling pipeline, so that the pressure and quality are in a state less than pre-set pressure and quality thresholds.

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