Coal-based solid waste grouting filling fire preventing and extinguishing test platform

Abstract

The invention provides a coal-based solid waste grouting and filling fire preventing and extinguishing test platform. The coal-based solid waste grouting and filling fire preventing and extinguishing test platform is characterized in that the first end of a first pipeline of a gas inlet assembly is communicated with a nitrogen tank, and the first end of a second pipeline is communicated with an oxygen tank; a heating piece of the reaction assembly is arranged in a containing cavity of the shell, the inner container is provided with a reaction cavity, the reaction cavity is communicated with the containing cavity, the second end of the first pipeline and the second end of the second pipeline are both communicated with the first end of the third pipeline, the second end of the third pipeline extends into the reaction cavity, and a gas outlet is formed in the shell; the detection assembly comprises a fourth pipeline and a detection piece, the first end of the fourth pipeline is communicated with the gas outlet, and the second end of the fourth pipeline is communicated with the detection piece. Through the technical scheme provided by the invention, the problem that the fire preventing and extinguishing effect cannot be effectively detected and judged due to the fact that a coal-based solid waste grouting filling fire preventing and extinguishing technology in the related technology is poor in air tightness and inaccurate in gas detection can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of mine grouting filling fire prevention and extinguishing, and in particular to a coal-based solid waste grouting filling fire prevention and extinguishing test platform. Background Art

[0002] During the underground mining process of coal mines, a large number of goafs are left behind. The coal and gangue in the goafs are at risk of spontaneous combustion. As an efficient and environmentally friendly mining filling and fire prevention technology, coal-based solid waste grouting and fire prevention technology has broad application prospects in the field of mine fire prevention and fire prevention.

[0003] In the related technology, the fire prevention and extinguishing technology of coal-based solid waste grouting filling does not need to consume precious land resources. It only needs to use the coal-based solid waste generated by the coal mine itself, such as coal gangue, and crush the coal gangue into slurry, and use grouting filling to achieve the prevention and control of fire in the goaf area of ​​the coal mine underground.

[0004] However, the coal-based solid waste grouting filling fire prevention and extinguishing technology in the related art has problems of poor air tightness and inaccurate gas detection, resulting in the inability to effectively detect and judge the fire prevention and extinguishing effect. Summary of the invention

[0005] The present invention provides a coal-based solid waste grouting filling fire prevention and extinguishing test platform to solve the problems of poor air tightness and inaccurate gas detection in the coal-based solid waste grouting filling fire prevention and extinguishing technology in the related technology, which leads to the inability to effectively detect and judge the fire prevention and extinguishing effect.

[0006] The invention provides a coal-based solid waste grouting and filling fire prevention and extinguishing test platform, which comprises: an air intake assembly, comprising a nitrogen tank, an oxygen tank, a first pipeline and a second pipeline, wherein the first end of the first pipeline is connected to the nitrogen outlet of the nitrogen tank, and the first end of the second pipeline is connected to the oxygen outlet of the oxygen tank; a reaction assembly, comprising an outer shell, a heating element, an inner liner and a third pipeline, wherein the outer shell has a containing cavity, the heating element is arranged in the containing cavity, the inner liner is removably placed in the containing cavity, the inner liner has a reaction cavity for containing coal-based solid waste grouting and filling slurry, the reaction cavity is connected to the containing cavity, the second end of the first pipeline and the second end of the second pipeline are both connected to the first end of the third pipeline, the second end of the third pipeline passes through the outer shell and extends into the bottom of the reaction cavity, and the outer shell is provided with a gas outlet connected to the containing cavity; a detection assembly, comprising a fourth pipeline and a detection element, wherein the first end of the fourth pipeline is connected to the gas outlet, and the second end of the fourth pipeline is connected to the detection element.

[0007] Furthermore, the outer shell includes a first shell, a second shell and a surface cover, the surface cover can be opened and closed on the first shell, the second shell is arranged in the first shell, the accommodating chamber is arranged in the second shell, the heating element is arranged in the second shell, and an insulation layer is arranged between the first shell and the second shell, and the second end of the third pipeline is sequentially penetrated through the first shell and the second shell and extends into the bottom of the reaction chamber.

[0008] Furthermore, the heating element includes a thermocouple, and the coal-based solid waste grouting filling fire prevention and extinguishing test platform also includes a temperature controller, and the temperature controller is electrically connected to the thermocouple to control the temperature of the thermocouple.

[0009] Furthermore, an opening is provided on the second shell, and the coal-based solid waste grouting filling fire prevention and extinguishing test platform also includes a sealing ring, a cover plate and a fastener. The sealing ring is arranged at the opening, and the cover plate is covered on the second shell to cover the opening. The fasteners are sequentially passed through the cover plate and the second shell so that the cover plate and the second shell can be detachably connected.

[0010] Furthermore, the detection component also includes a vacuum pump and a three-way valve, the second end of the third pipeline is connected to the inlet of the three-way valve, and the coal-based solid waste grouting filling fire prevention and extinguishing test platform also includes a first branch pipe and a second branch pipe, the first end of the first branch pipe is connected to the first outlet of the three-way valve, the second end of the first branch pipe is connected to the detection piece, the first end of the second branch pipe is connected to the second outlet of the three-way valve, and the second end of the second branch pipe is connected to the vacuum pump.

[0011] Furthermore, a safety valve is provided on the fourth pipeline.

[0012] Furthermore, a first fine-tuning valve for controlling the flow and pressure of nitrogen is arranged on the first pipeline; a first electronic flow meter for detecting the flow of nitrogen is arranged on the first pipeline; and a first pressure gauge for detecting the pressure of nitrogen is arranged on the first pipeline.

[0013] Furthermore, a second fine-tuning valve for controlling the oxygen flow and pressure is arranged on the second pipeline; a second electronic flow meter for detecting the oxygen flow is arranged on the second pipeline; and a second pressure gauge for detecting the oxygen pressure is arranged on the second pipeline.

[0014] Furthermore, a gas premixing kettle for mixing nitrogen and oxygen is arranged on the third pipeline; and a main valve for opening and closing the mixed gas is arranged on the third pipeline.

[0015] Furthermore, the detection component includes a gas chromatograph.

[0016] By applying the technical solution of the present invention, the coal-based solid waste grouting filling fire prevention and extinguishing test platform includes an air intake component, a reaction component and a detection component. The air intake component includes a nitrogen tank and an oxygen tank. The first end of the first pipeline is connected to the nitrogen outlet of the nitrogen tank, so that the nitrogen in the nitrogen tank can be discharged into the first pipeline. The first end of the second pipeline is connected to the oxygen outlet of the oxygen tank, so that the oxygen in the oxygen tank can be discharged into the second pipeline. The second end of the first pipeline and the second end of the second pipeline are both connected to the first end of the third pipeline, so that the nitrogen in the first pipeline and the oxygen in the second pipeline can be mixed in the third pipeline, thereby simulating the atmospheric environment. The second end of the third pipeline can pass through the outer shell of the reaction component, and the outer shell has a receiving cavity. The heating element of the reaction component is arranged in the receiving cavity, and the inner tank can be removed and placed in the receiving cavity, so that the second end of the third pipeline passes through the outer shell and extends into the reaction cavity of the inner tank. Since the reaction chamber of the inner tank can accommodate coal-based solid waste grouting filling slurry, the gas of the simulated atmospheric environment mixed with nitrogen and oxygen can be discharged into the reaction chamber under the action of the third pipeline. At this time, the heating element is controlled to heat, so that the coal-based solid waste grouting filling slurry in the reaction chamber can be observed to see whether it burns after the gas is introduced. Specifically, since the reaction chamber is connected with the containing chamber, the mixed gas is passed into the reaction chamber and then undergoes combustion reaction with the coal-based solid waste grouting filling slurry, so that the burned gas is discharged into the containing chamber, and a gas outlet connected with the containing chamber is provided on the outer shell, so that the burned gas can be discharged through the gas outlet, the first end of the fourth pipeline is connected with the gas outlet, and the second end of the fourth pipeline is connected with the detection element, so that the burned gas is discharged into the fourth pipeline, and then discharged into the detection element through the fourth pipeline, and the gas composition after burning is detected by the detection element, so that the carbon dioxide and carbon monoxide content in the gas is detected by the detection element to determine whether the coal-based solid waste grouting filling slurry is burned after the mixed gas is passed into it, and then if the detection element detects that the gas has a large content of carbon dioxide and carbon monoxide, when the heating element is heated to a certain temperature and the mixed gas is discharged into the reaction chamber, the coal-based solid waste grouting filling slurry in the reaction chamber is burned, so that the coal-based solid waste grouting filling slurry in this inner tank cannot play a fire prevention and extinguishing effect in the tunnel. If the detection component detects that the carbon dioxide and carbon monoxide content of the gas is low, when the heating component is heated to a certain temperature and the mixed gas is discharged into the reaction chamber, the coal-based solid waste grouting filling slurry in the reaction chamber will not burn completely, so that the coal-based solid waste grouting filling slurry in this inner tank can play a fire prevention and extinguishing effect in the tunnel, so that the coal-based solid waste grouting filling fire prevention and extinguishing test platform of this device can effectively detect and judge the fire prevention and extinguishing effect of the coal-based solid waste grouting filling slurry, ensure the accuracy of gas detection, and improve the structural reliability of the coal-based solid waste grouting filling fire prevention and extinguishing test platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of a coal-based solid waste grouting filling fire prevention and extinguishing test platform provided according to an embodiment of the present invention is shown.

[0019] The above drawings include the following reference numerals:

[0020] 10. Air intake assembly; 11. Nitrogen tank; 12. Oxygen tank; 13. First pipeline; 131. First fine-tuning valve; 132. First electronic flow meter; 133. First pressure gauge; 14. Second pipeline; 141. Second fine-tuning valve; 142. Second electronic flow meter; 143. Second pressure gauge;

[0021] 20. reaction assembly; 21. shell; 211. accommodating chamber; 212. gas outlet; 213. first shell; 214. second shell; 215. cover; 216. insulation layer; 22. heating element; 23. liner; 231. reaction chamber; 24. third pipeline; 241. gas premixing kettle; 242. main valve;

[0022] 30. Detection assembly; 31. Fourth pipeline; 32. Detection piece; 33. Vacuum pump; 34. Three-way valve; 35. Safety valve;

[0023] 41. Temperature controller; 42. First branch pipe; 43. Second branch pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1As shown, an embodiment of the present invention provides a coal-based solid waste grouting filling fire prevention and extinguishing test platform, which includes an air intake component 10, a reaction component 20 and a detection component 30. The air intake component 10 includes a nitrogen tank 11, an oxygen tank 12, a first pipeline 13 and a second pipeline 14. The first end of the first pipeline 13 is connected to the nitrogen outlet of the nitrogen tank 11, and the first end of the second pipeline 14 is connected to the oxygen outlet of the oxygen tank 12. The reaction component 20 includes an outer shell 21, a heating element 22, an inner liner 23 and a third pipeline 24. The outer shell 21 has a accommodating cavity 211, and the heating element 22 is arranged in the accommodating cavity 211. The liner 23 can be removed and placed in the accommodating chamber 211. The liner 23 has a reaction chamber 231 for accommodating coal-based solid waste grouting filling slurry. The reaction chamber 231 is connected to the accommodating chamber 211. The second end of the first pipeline 13 and the second end of the second pipeline 14 are both connected to the first end of the third pipeline 24. The second end of the third pipeline 24 passes through the shell 21 and extends to the bottom of the reaction chamber 231. The shell 21 is provided with a gas outlet 212 connected to the accommodating chamber 211. The detection component 30 includes a fourth pipeline 31 and a detection member 32. The first end of the fourth pipeline 31 is connected to the gas outlet 212, and the second end of the fourth pipeline 31 is connected to the detection member 32.

[0026] The coal-based solid waste grouting and filling fire prevention and extinguishing test platform provided in this embodiment is applied. The coal-based solid waste grouting and filling fire prevention and extinguishing test platform includes an air intake component 10, a reaction component 20 and a detection component 30. The air intake component 10 includes a nitrogen tank 11 and an oxygen tank 12. The first end of the first pipeline 13 is connected to the nitrogen outlet of the nitrogen tank 11, so that the nitrogen in the nitrogen tank 11 can be discharged into the first pipeline 13, and the first end of the second pipeline 14 is connected to the oxygen outlet of the oxygen tank 12, so that the oxygen in the oxygen tank 12 can be discharged into the second pipeline 14, and the second end of the first pipeline 13 and the second end of the second pipeline 14 are both connected to the first end of the third pipeline 24, so that the nitrogen in the first pipeline 13 and the oxygen in the second pipeline 14 can be mixed in the third pipeline 24, thereby simulating the atmospheric environment. The second end of the third pipeline 24 can pass through the outer shell 21 of the reaction component 20, and the outer shell 21 has a receiving chamber 211. The heating element 22 of the reaction component 20 is arranged in the receiving chamber 211, and the inner liner 23 can be removed and placed in the receiving chamber 211, so that the second end of the third pipeline 24 passes through the outer shell 21 and extends into the reaction chamber 231 of the inner liner 23. Since the reaction chamber 231 of the inner liner 23 can accommodate coal-based solid waste grouting filling slurry, the gas of the simulated atmospheric environment after nitrogen and oxygen are mixed can be discharged into the reaction chamber 231 under the action of the third pipeline 24. At this time, the heating element 22 is controlled to heat, so that the coal-based solid waste grouting filling slurry in the reaction chamber 231 is observed to be burned after the gas is introduced. Specifically, since the reaction chamber 231 is connected to the accommodating chamber 211, the mixed gas is passed into the reaction chamber 231 and then undergoes combustion reaction with the coal-based solid waste grouting filling slurry, so that the burned gas is discharged into the accommodating chamber 211, and a gas outlet 212 connected to the accommodating chamber 211 is provided on the housing 21, so that the burned gas can be discharged through the gas outlet 212, the first end of the fourth pipeline 31 is connected to the gas outlet 212, and the second end of the fourth pipeline 31 is connected to the detection element 32, so that the burned gas is discharged into the fourth pipeline 31, and discharged into the detection element 32 through the fourth pipeline 31. Component 32 is used to detect the gas composition after combustion, so that the detection component 32 detects the content of carbon dioxide and carbon monoxide in the gas to determine whether the coal-based solid waste grouting filling slurry is burned after the mixed gas is introduced. If the detection component 32 detects that the gas has a large content of carbon dioxide and carbon monoxide, when the heating component 22 is heated to a certain temperature and the mixed gas is discharged into the reaction chamber 231, the coal-based solid waste grouting filling slurry in the reaction chamber 231 is burned, so that the coal-based solid waste grouting filling slurry in this inner tank 23 cannot play a fire prevention and extinguishing effect in the tunnel.If the detection component 32 detects that the carbon dioxide and carbon monoxide content of the gas is low, when the heating component 22 is heated to a certain temperature and the mixed gas is discharged into the reaction chamber 231, the coal-based solid waste grouting filling slurry in the reaction chamber 231 does not burn completely, so that the coal-based solid waste grouting filling slurry in this inner tank 23 can play a fire prevention and extinguishing effect in the tunnel, so that the coal-based solid waste grouting filling fire prevention and extinguishing test platform of the device can effectively detect and judge the fire prevention and extinguishing effect of the coal-based solid waste grouting filling slurry, ensure the accuracy of gas detection, and improve the structural reliability of the coal-based solid waste grouting filling fire prevention and extinguishing test platform.

[0027] It should be noted that the inner liner 23 is used to hold the coal-based solid waste grouting filling slurry to be tested. Before pouring the slurry, the bottom opening in the inner liner 23 must be blocked with a plug to prevent the slurry from leaking. After the slurry in the inner liner 23 is dried in the shade, the plug is removed and the inner liner 23 containing the dried slurry is placed in the accommodating cavity 211.

[0028] like Figure 1 As shown, the shell 21 includes a first shell 213, a second shell 214 and a cover 215. The cover 215 can be opened and closed on the first shell 213. The second shell 214 is arranged in the first shell 213. The accommodating chamber 211 is arranged in the second shell 214. The heating element 22 is arranged in the second shell 214. An insulation layer 216 is arranged between the first shell 213 and the second shell 214. The second end of the third pipeline 24 is sequentially penetrated through the first shell 213 and the second shell 214 and extends into the bottom of the reaction chamber 231. With the above structure, the cover 215 can be opened and closed on the first shell 213, and a heat-insulating layer 216 is arranged between the first shell 213 and the second shell 214. The accommodating chamber 211 is arranged in the second shell 214. When the liner 23 needs to be placed in the accommodating chamber 211, the cover 215 needs to be opened first, and the liner 23 is placed in the accommodating chamber 211 of the second shell 214, and then the cover 215 is closed, so that the liner 23 can be sealed. The heating element 22 is arranged in the second shell 214, so that when the heating element 22 heats the liner 23 in the second shell 214, the heat-insulating layer 216 can play a role. In order to provide heat preservation, the second end of the third pipeline 24 is sequentially penetrated through the first shell 213 and the second shell 214 and extends into the bottom of the reaction chamber 231, thereby ensuring that the heating element 22 can control the degree of combustion of the coal-based solid waste grouting filling slurry in the reaction chamber 231 after the mixed gas is introduced at a certain temperature, which can not only meet the combustion conditions in the reaction chamber 231, but also facilitate the control of the heating element 22, and facilitate the gas generated by the reaction chamber 231 under the combustion conditions to be discharged into the detection element 32 through the fourth pipeline 31, and the composition of the generated gas is detected, thereby judging the fire prevention and extinguishing effect of the coal-based solid waste grouting filling slurry.

[0029] In this embodiment, the heating element 22 includes a thermocouple, and the coal-based solid waste grouting filling fire prevention and extinguishing test platform also includes a temperature controller 41, and the temperature controller 41 is electrically connected to the thermocouple to control the temperature of the thermocouple. With the above structure, by electrically connecting the temperature controller 41 to the thermocouple, the temperature of the thermocouple can be controlled, so that the inner tank 23 can be heated by the thermocouple.

[0030] In this embodiment, an opening is provided on the second shell 214, and the coal-based solid waste grouting filling fire prevention and extinguishing test platform also includes a sealing ring, a cover plate and a fastener, the sealing ring is provided at the opening, the cover plate is covered on the second shell 214 to cover the opening, and the fastener is sequentially penetrated through the cover plate and the second shell 214, so that the cover plate is detachably connected to the second shell 214. With the above structure, by providing an opening on the second shell 214, the sealing ring is provided at the opening, and the cover plate is covered at the opening of the second shell 214, so that the cover plate presses the sealing ring, and the fastener is penetrated through the cover plate and connected to the second shell 214, so that the sealing ring can be pressed to improve the sealing effect while the cover plate can be connected and fixed to the second shell 214, which can not only improve the sealing effect, but also facilitate disassembly.

[0031] like Figure 1 As shown, the detection assembly 30 also includes a vacuum pump 33 and a three-way valve 34, the second end of the third pipeline 24 is connected to the inlet of the three-way valve 34, and the coal-based solid waste grouting filling fire prevention and extinguishing test platform also includes a first branch pipe 42 and a second branch pipe 43, the first end of the first branch pipe 42 is connected to the first outlet of the three-way valve 34, the second end of the first branch pipe 42 is connected to the detection element 32, the first end of the second branch pipe 43 is connected to the second outlet of the three-way valve 34, and the second end of the second branch pipe 43 is connected to the vacuum pump 33. With the above structure, the second end of the third pipeline 24 is connected to the inlet of the three-way valve 34, the first end of the first branch pipe 42 is connected to the first outlet of the three-way valve 34, the second end of the first branch pipe 42 is connected to the detection element 32, the first end of the second branch pipe 43 is connected to the second outlet of the three-way valve 34, and the second end of the second branch pipe 43 is connected to the vacuum pump 33, so that the three-way valve 34 can be used to switch the pipeline. Specifically, before the experiment begins, the three-way valve 34 is used to connect the vacuum pump 33 to the second end of the third pipeline 24, the detection component 32 and the second end of the third pipeline 24 are closed, and the gas in the accommodating chamber 211 is extracted by the vacuum pump 33 to avoid affecting the subsequent detection results. After that, the three-way valve 34 is used to switch so that the detection component 32 and the second end of the third pipeline 24 are connected, and the vacuum pump 33 and the second end of the third pipeline 24 are closed, so that the inner liner 23 in the accommodating chamber 211 can discharge the gas into the detection component 32 after combustion, and detect the gas composition after combustion, which is convenient for control and can also avoid affecting the detection results.

[0032] like Figure 1 As shown, a safety valve 35 is provided on the fourth pipeline 31. By providing the safety valve 35, it can be used to prevent the fourth pipeline 31 from exploding or being damaged due to excessive pressure.

[0033] like Figure 1 As shown, a first fine-tuning valve 131 for controlling the flow rate and pressure of nitrogen is provided on the first pipeline 13. By providing the first fine-tuning valve 131, the flow rate of nitrogen can be accurately controlled and the pressure of nitrogen can be adjusted.

[0034] like Figure 1 As shown, a first electronic flowmeter 132 for detecting the flow rate of nitrogen is provided on the first pipeline 13. By providing the first electronic flowmeter 132, the flow rate of nitrogen can be detected, so as to facilitate the mixing of nitrogen and oxygen.

[0035] like Figure 1 As shown, a first pressure gauge 133 for detecting the nitrogen pressure is provided on the first pipeline 13. By providing the first pressure gauge 133, the pressure of the nitrogen can be detected, which is convenient for adjusting the pressure of the nitrogen.

[0036] like Figure 1 As shown, a second fine-tuning valve 141 for controlling the flow rate and pressure of oxygen is provided on the second pipeline 14. By providing the second fine-tuning valve 141, the flow rate of oxygen can be accurately controlled and the pressure of oxygen can be adjusted.

[0037] like Figure 1 As shown, a second electronic flow meter 142 for detecting the oxygen flow rate is provided on the second pipeline 14. By providing the second electronic flow meter 142, the oxygen flow rate can be detected, so as to facilitate the mixing of nitrogen and oxygen.

[0038] like Figure 1 As shown, a second pressure gauge 143 for detecting the oxygen pressure is provided on the second pipeline 14. By providing the second pressure gauge 143, the pressure of oxygen can be detected, which is convenient for adjusting the pressure of oxygen.

[0039] like Figure 1 As shown, a gas premixing kettle 241 for mixing nitrogen and oxygen is provided on the third pipeline 24. By providing the gas premixing kettle 241, nitrogen and oxygen can be mixed in the gas premixing kettle 241.

[0040] like Figure 1 As shown, a main valve 242 for opening and closing the mixed gas is provided on the third pipeline 24. The main valve 242 is convenient for controlling the connection or closing of the gas on the third pipeline 24.

[0041] It should be noted that the nitrogen tank 11 and the oxygen tank 12 are opened, and the first fine-tuning valve 131 and the second fine-tuning valve 141 are adjusted so that the gas pressures of the first pipeline 13 and the second pipeline 14 are both 0.4 MPa, and the first electronic flow meter 132 and the second electronic flow meter 142 are used for detection, and nitrogen and oxygen are introduced evenly and stably at a gas flow ratio of 4:1, and the temperature parameters of the temperature controller 41 are set.

[0042] In this embodiment, the detection element 32 includes a gas chromatograph. A gas chromatograph can separate a complex mixture into individual components, and by comparing with a standard substance, the gas chromatograph can determine the content of carbon dioxide and carbon monoxide in the sample.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0044] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0045] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0046] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0047] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coal-based solid waste grouting filling fire prevention and extinguishing test platform, characterized in that: The coal-based solid waste grouting filling fire prevention and extinguishing test platform includes: An air intake assembly (10) comprises a nitrogen tank (11), an oxygen tank (12), a first pipeline (13) and a second pipeline (14), wherein a first end of the first pipeline (13) is connected to a nitrogen outlet of the nitrogen tank (11), and a first end of the second pipeline (14) is connected to an oxygen outlet of the oxygen tank (12); A reaction assembly (20) comprises an outer shell (21), a heating element (22), an inner liner (23) and a third pipeline (24); the outer shell (21) has a containing chamber (211); the heating element (22) is arranged in the containing chamber (211); the inner liner (23) is removably placed in the containing chamber (211); the inner liner (23) has a reaction chamber (231) for accommodating coal-based solid waste grouting filling slurry; the reaction chamber (231) and the containing chamber (211) are connected; the second end of the first pipeline (13) and the second end of the second pipeline (14) are both connected to the first end of the third pipeline (24); the second end of the third pipeline (24) passes through the outer shell (21) and extends into the bottom of the reaction chamber (231); the outer shell (21) is provided with a gas outlet (212) connected to the containing chamber (211); A detection assembly (30) comprises a fourth pipeline (31) and a detection component (32), wherein a first end of the fourth pipeline (31) is connected to the gas outlet (212), and a second end of the fourth pipeline (31) is connected to the detection component (32).

2. The coal-based solid waste grouting filling fire prevention and extinguishing test platform according to claim 1 is characterized in that: The housing (21) comprises a first shell (213), a second shell (214) and a cover (215); the cover (215) is coverably disposed on the first shell (213); the second shell (214) is disposed in the first shell (213); the accommodating chamber (211) is disposed in the second shell (214); the heating element (22) is disposed in the second shell (214); a heat-insulating layer (216) is disposed between the first shell (213) and the second shell (214); and the second end of the third pipeline (24) is sequentially disposed in the first shell (213) and the second shell (214) and extends into the bottom of the reaction chamber (231).

3. The coal-based solid waste grouting filling fire prevention and extinguishing test platform according to claim 2 is characterized in that: The heating element (22) includes a thermocouple, and the coal-based solid waste grouting filling fire prevention and extinguishing test platform also includes a temperature controller (41), and the temperature controller (41) is electrically connected to the thermocouple to control the temperature of the thermocouple.

4. The coal-based solid waste grouting filling fire prevention and extinguishing test platform according to claim 2 is characterized in that: The second shell (214) is provided with an opening, and the coal-based solid waste grouting filling fire prevention and extinguishing test platform also includes a sealing ring, a cover plate and a fastener, the sealing ring is arranged at the opening, the cover plate is covered on the second shell (214) to cover the opening, and the fastener is sequentially passed through the cover plate and the second shell (214) so ​​that the cover plate and the second shell (214) are detachably connected.

5. The coal-based solid waste grouting filling fire prevention and extinguishing test platform according to claim 1 is characterized in that: The detection component (30) further comprises a vacuum pump (33) and a three-way valve (34); the second end of the third pipeline (24) is connected to the inlet of the three-way valve (34); the coal-based solid waste grouting filling fire prevention and extinguishing test platform further comprises a first branch pipe (42) and a second branch pipe (43); the first end of the first branch pipe (42) is connected to the first outlet of the three-way valve (34); the second end of the first branch pipe (42) is connected to the detection element (32); the first end of the second branch pipe (43) is connected to the second outlet of the three-way valve (34); and the second end of the second branch pipe (43) is connected to the vacuum pump (33).

6. The coal-based solid waste grouting filling fire prevention and extinguishing test platform according to claim 1 is characterized in that: The fourth pipeline (31) is provided with a safety valve (35).

7. The coal-based solid waste grouting filling fire prevention and extinguishing test platform according to claim 1 is characterized in that: The first pipeline (13) is provided with a first fine-tuning valve (131) for controlling the flow rate and pressure of nitrogen; The first pipeline (13) is provided with a first electronic flow meter (132) for detecting the flow rate of nitrogen; The first pipeline (13) is provided with a first pressure gauge (133) for detecting nitrogen pressure.

8. The coal-based solid waste grouting filling fire prevention and extinguishing test platform according to claim 1 is characterized in that: The second pipeline (14) is provided with a second fine-tuning valve (141) for controlling the oxygen flow rate and pressure; The second pipeline (14) is provided with a second electronic flow meter (142) for detecting the oxygen flow rate; The second pipeline (14) is provided with a second pressure gauge (143) for detecting oxygen pressure.

9. The coal-based solid waste grouting filling fire prevention and extinguishing test platform according to claim 1, characterized in that: The third pipeline (24) is provided with a gas premixing kettle (241) for mixing nitrogen and oxygen; The third pipeline (24) is provided with a main valve (242) for opening and closing the mixed gas.

10. The coal-based solid waste grouting filling fire prevention and extinguishing test platform according to claim 1, characterized in that: The detection component (32) includes a gas chromatograph.

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