Gangue slope spontaneous combustion treatment and reinforcement equipment and spontaneous combustion treatment method

Abstract

The present invention discloses a spontaneous combustion treatment and reinforcement device for a gangue slope and a spontaneous combustion treatment method, including a plate body, a cylinder body, a fixing member, a temperature module and a leveling module. The cylinder body is connected to the plate body. One end of the cylinder body is provided with a first inlet and a plurality of second inlets, and the other end of the cylinder body is provided with at least one outlet. The first inlet is used to introduce a fire extinguishing gas into the cylinder body, and the plurality of second inlets are respectively used to introduce different fire extinguishing slurries into the cylinder body. The outlet is used for the fire extinguishing gas and the fire extinguishing slurry to be discharged from the cylinder body and into the gangue pile; the fixing member is used to fix the plate body to the gangue pile; the temperature module is arranged on the plate body and the cylinder body; the leveling module is used to calibrate the levelness of the plate body when installing the treatment and processing equipment. When in use, the spontaneous combustion treatment and reinforcement device for the gangue slope of the present invention can selectively adopt a suitable fire extinguishing slurry according to different fire area characteristics, improve the isolation effect on the fire area, solve the problem of re-ignition of the gangue pile, and improve the spontaneous combustion treatment effect of the slope.

Description

Technical Field

[0001] The present invention relates to the technical field of coal gangue, and specifically, to an equipment for controlling and reinforcing spontaneous combustion of gangue slopes and a method for controlling spontaneous combustion. Background Art

[0002] During the excavation of underground coal mine roadways, working faces, and coal washing processes, a certain amount of coal gangue will be generated. If not properly disposed of, it will pose certain potential hazards to the environment and ecological safety. Taking the arid and semi-arid regions in northern China as an example, the large-scale surface stacking of coal gangue has led to phenomena such as occupation of land resources and damage to landform landscapes. Among them, phenomena such as spontaneous combustion of gangue mountains, instability of slopes, and metal ion pollution are increasingly affecting the environment around the mining area.

[0003] Generally speaking, the design scheme of the gangue stacking yard has clear technical requirements for the stacking of coal gangue. After the coal gangue is stacked to 3 - 5 meters, it needs to be compacted with equipment such as a roller, and then covered with soil for compaction. In this way, the stacking of one design elevation is completed in a cycle. After the closure of the coal gangue yard, it is necessary to cover the surface and slopes with soil, build intercepting and drainage ditches, and then carry out greening in order to restore the original landform landscape and reduce the disturbance to the ecological environment.

[0004] The standardized design and construction of the coal gangue yard have reduced the impact on the geological environment to a certain extent. However, due to the special site conditions of the coal gangue mountain, especially the danger of large machinery walking in the slope section, the technical difficulty of slope soil covering and compaction, and the serious soil and water loss of slope soil covering under rainfall conditions, etc., the slope soil layer is generally thin, the gully is serious, and the soil stability is poor. As a result, the probability of the coal gangue slope surface contacting with oxygen increases, and the tendency of spontaneous combustion and reignition of the gangue slope is obvious.

[0005] Traditional methods for treating fire areas on coal gangue slopes include measures such as grouting, removal of flammable substances, and isolation and sealing. These methods have solved the problem of slope spontaneous combustion to a certain extent, but problems such as the difficulty in accurately positioning the ignition point during the treatment process and the single grouting material cannot ensure the long-term stability of the treatment area, and there are many cases of subsequent reignition. In addition, due to the large temperature difference between different layers, less research and application have been carried out on grouting for different temperature differences. Summary of the Invention

[0006] The present invention aims to solve at least one of the technical problems in the related technologies to some extent.

[0007] Therefore, an embodiment of the present invention provides an equipment for controlling and reinforcing spontaneous combustion of gangue slopes. When this equipment for controlling and reinforcing spontaneous combustion of gangue slopes is used, it can selectively adopt a suitable fire-extinguishing slurry according to different fire area characteristics, improve the isolation effect on the fire area, solve the problem of gangue pile reignition, and improve the effect of controlling spontaneous combustion of the slope.

[0008] An embodiment of the present invention also provides a self - combustion control method using the above - mentioned gangue slope self - combustion control and reinforcement equipment.

[0009] The gangue slope self - combustion control and reinforcement equipment in an embodiment of the present invention includes:

[0010] A plate body, which is used to cover the surface of the gangue pile;

[0011] A cylinder body, which is connected to the plate body and is used to be inserted into the gangue. One end of the cylinder body for connecting with the plate body is provided with a first inlet and a plurality of second inlets, and the other end of the cylinder body is provided with at least one outlet. The first inlet is used to introduce a fire - extinguishing gas into the cylinder body, the plurality of second inlets are respectively used to introduce different fire - extinguishing slurries into the cylinder body, and the outlet is used for the fire - extinguishing gas and the fire - extinguishing slurry to be discharged from the cylinder body and discharged into the gangue pile;

[0012] A fixing member, which is used to fix the plate body to the gangue pile;

[0013] A temperature module, which is arranged on the plate body and the cylinder body and is used to display the temperature in the gangue pile;

[0014] A level module, which is used to calibrate the level of the plate body when installing the control and processing equipment.

[0015] When in use, the gangue slope self - combustion control and reinforcement equipment in an embodiment of the present invention can selectively adopt a suitable fire - extinguishing slurry according to different fire area characteristics, improving the isolation effect on the fire area, solving the problem of the gangue pile reigniting, and enhancing the self - combustion control effect of the slope.

[0016] In some embodiments, at least one of the outlets includes a first outlet and a plurality of second outlets. The first outlet is used for discharging the fire - extinguishing gas, and the second outlets are used for discharging the fire - extinguishing slurry;

[0017] A plurality of channels are arranged in the cylinder body. The plurality of channels include a first channel and a plurality of second channels. The first channel is connected between the first inlet and the first outlet, and the plurality of second channels are respectively connected between the plurality of second inlets and the plurality of second outlets in one - to - one correspondence.

[0018] In some embodiments, a plurality of slurry pipe bodies are included. The plurality of slurry pipe bodies all pass through the plate body and extend into the cylinder body. The pipe orifices of the plurality of slurry pipe bodies located outside the plate body all form the second inlets, the pipe orifices of the plurality of slurry pipe bodies located inside the cylinder body are respectively communicated with the corresponding second outlets, and the inner cavities of the slurry pipe bodies form the second channels.

[0019] In some embodiments, a gas pipe body is included. The gas pipe body passes through the plate body and extends into the cylinder body. The pipe orifice of the gas pipe body located outside the plate body forms the first inlet. The pipe orifice of the gas pipe body located inside the cylinder body is indirectly connected to the first outlet through the inner cavity of the cylinder body, and the inner cavity of the cylinder body forms the first channel.

[0020] In some embodiments, there are a plurality of first outlets. The plurality of first outlets are arranged at intervals along the circumferential direction of the cylinder body, and the plurality of first outlets are located between the plate body and the plurality of second outlets.

[0021] In some embodiments, the fire extinguishing gas includes at least one of the following: inert gas, carbon dioxide, heptafluoropropane;

[0022] And / or, the fire extinguishing slurry includes at least one of the following: sodium silicate, fire extinguishing paste, yellow mud.

[0023] In some embodiments, the temperature module includes a temperature sensor, a temperature display and a cable. The temperature sensor is arranged at one end of the cylinder body where the outlet is provided. The temperature display is arranged on the plate body. The cable electrically connects the temperature sensor and the temperature display.

[0024] In some embodiments, the level module is arranged on the plate body;

[0025] And / or, a valve is provided at the outlet, and the valve can control the opening and closing of the outlet;

[0026] And / or, the fixing member includes an anchor rod and an anchoring plate. The anchor rod passes through the plate body and is used to be fixed in the gangue pile. The anchoring plate is connected to the anchor rod and is in a blocking fit with the plate body.

[0027] The spontaneous combustion control method of the embodiment of the present invention includes the following steps:

[0028] S1: Determine the position of the ignition point on the gangue pile, construct an installation hole at the ignition point position, and then insert the cylinder body of the treatment and reinforcement device into the installation hole;

[0029] S2: Divide the gangue pile into multiple sections in the up and down directions, and then gradually lift the treatment and reinforcement device upward to perform fire extinguishing operations on each section in sequence from bottom to top. And the fire extinguishing operation for each section includes the following steps:

[0030] S21: Inject fire extinguishing gas into the corresponding section through the first inlet;

[0031] S22: Use the temperature module to monitor the temperature of the corresponding section;

[0032] S23: If the monitored temperature meets the requirements, inject the corresponding fire extinguishing slurry into the corresponding section through the corresponding second inlet;

[0033] S3: Continue to lift the treatment and reinforcement equipment upward to a set height, and use the corresponding second inlet to inject the corresponding fire extinguishing material.

[0034] In some embodiments, during the process of injecting the corresponding fire extinguishing slurry into each section, a set amount of water is injected through the corresponding second inlet to play the roles of fire extinguishing, temperature control, and adjusting the concentration of the fire extinguishing slurry. Description of the Drawings

[0035] Figure 1 is a top view schematic diagram of the treatment and reinforcement equipment according to an embodiment of the present invention.

[0036] Figure 2 is a schematic diagram of the use state of the treatment and reinforcement equipment according to an embodiment of the present invention.

[0037] Reference Signs:

[0038] Plate body 1;

[0039] Cylindrical body 2; First inlet 21; Second inlet 22; First outlet 23; Second outlet 24;

[0040] Fixing member 3; Anchor rod 31; Anchor plate 32;

[0041] Temperature module 4; Temperature sensor 41; Cable 42; Temperature display 43;

[0042] Leveling module 5;

[0043] Slurry pipe body 6. Detailed Embodiments

[0044] The following details the embodiments of the present invention, and the examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0045] As Figure 1 and Figure 2 shown, the gangue slope spontaneous combustion treatment and reinforcement equipment (hereinafter referred to as the treatment and reinforcement equipment) according to an embodiment of the present invention includes a plate body 1, a cylindrical body 2, a fixing member 3, a temperature module 4, and a leveling module 5.

[0046] As Figure 1As shown, the plate body 1 can generally be a rectangular flat plate. The material of the plate body 1 can be metal. The plate body 1 is used to cover the surface of the gangue pile (such as coal gangue) during use, and the plate body 1 needs to be used in combination with the fixing member 3. The fixing member 3 can include a rod-shaped object. One end of the fixing member 3 can be fixedly connected to the plate body 1, and the other end of the fixing member 3 can be inserted into the gangue pile and fixed to the gangue. Thus, the installation and fixation of the plate body 1 can be achieved. By means of the plate body 1, the effects of pressing and plugging can be achieved, and then the reinforcement effect on the gangue pile can be achieved.

[0047] The cylinder body 2 is connected to the plate body 1 and is used to be inserted into the gangue. One end of the cylinder body 2 for connecting to the plate body 1 is provided with a first inlet 21 and a plurality of second inlets 22. The other end of the cylinder body 2 is provided with at least one outlet. The first inlet 21 is used to introduce a fire extinguishing gas into the cylinder body 2, and the plurality of second inlets 22 are respectively used to introduce different fire extinguishing slurries into the cylinder body 2. The outlet is used for the fire extinguishing gas and the fire extinguishing slurry to be discharged from the cylinder body 2 and discharged into the gangue pile.

[0048] For example, as Figure 1 shown, the cylinder body 2 can generally be cylindrical. The cylinder body 2 can be fixedly connected to the plate body 1. The specific fixing method can be welding, integral molding, fixing with fasteners, etc. The top end of the cylinder body 2 can be provided with an end plate, and the end plate can be integrally formed with the plate body 1. The first inlet 21 and the second inlet 22 can be arranged on the end plate of the cylinder body 2.

[0049] As Figure 1 shown, both the first inlet 21 and the second inlet 22 can be circular hole-shaped and penetrate the plate body 1 in the up and down direction, that is, both the first inlet 21 and the second inlet 22 can communicate with the inner cavity of the cylinder body 2. Among them, one first inlet 21 can be provided, and four second inlets 22 can be provided. The four second inlets 22 can be arranged at intervals along the circumferential direction of the first inlet 21.

[0050] During use, a fire extinguishing gas can be introduced into the cylinder body 2 through the first inlet 21. The extinguished gas can specifically be an inert gas. In some other embodiments, it can also be a gas such as carbon dioxide or heptafluoropropane. Through the second inlet 22, a fire extinguishing medium can be introduced into the cylinder body 2. The fire extinguishing medium can be sodium silicate, fire extinguishing paste, yellow mud slurry, etc. Among them, the fire extinguishing paste can specifically be a slurry or paste formed by mixing fire extinguishing materials such as lime in a certain proportion.

[0051] It should be noted that during the spontaneous combustion treatment process, different types of fire extinguishing slurries can be injected into the cylinder body 2 through different second inlets 22, so that the spontaneous combustion treatment process can be more targeted, that is, the appropriate fire extinguishing slurry can be selected according to the different temperatures shown in different positions.

[0052] At least one outlet may be provided at the bottom end of the cylinder body 2. The outlet can communicate the inner cavity of the cylinder body 2 with the outside world. Through the outlet, the fire extinguishing gas and fire extinguishing slurry injected into the cylinder body 2 can be discharged, so that the fire prevention and control operation of the gangue pile can be realized. It should be noted that only one outlet may be provided. In this case, the fire extinguishing gas and various types of fire extinguishing slurry can be discharged through the same outlet. In some other embodiments, multiple outlets may also be provided. In this case, the fire extinguishing slurry and various types of fire extinguishing slurry can also be discharged through different outlets.

[0053] To facilitate the insertion of the cylinder body 2, as Figure 2 shown, the bottom of the cylinder body 2 can be designed as a conical-like structure, that is, the cross-sectional area of the bottom of the cylinder body 2 can gradually increase along the direction from bottom to top.

[0054] The temperature module 4 is arranged on the plate body 1 and the cylinder body 2 and is used to display the temperature inside the gangue pile. For example, the temperature module 4 can include a monitoring component. The monitoring component can be installed on the cylinder body 2. The monitoring component can measure the temperature inside the gangue pile, and the temperature information measured by the monitoring component can be transmitted outward in a wired or wireless form, so as to facilitate the operator to understand the temperature information of the corresponding position in real time.

[0055] The level module 5 is used to calibrate the level of the plate body 1 when installing the treatment and processing equipment. For example, the level module 5 can be a level, and the level module 5 can be fixed on the upper end surface of the plate body 1. During use, the inclination of the installation of the plate body 1 can be monitored through the level module 5 to ensure that the plate body 1 can be installed in place, thereby further improving the stability and accuracy of the grouting process.

[0056] When the gangue slope spontaneous combustion treatment and reinforcement equipment of the embodiment of the present invention is used, it can selectively adopt a suitable fire extinguishing slurry according to different fire area characteristics. Compared with the situation of using a single grouting material to prevent spontaneous combustion in the prior art, the treatment process is more targeted, the isolation effect on the fire area is improved, the problem of re-ignition of the gangue pile is improved, and thus the spontaneous combustion treatment effect of the slope is improved.

[0057] Secondly, by integrating the temperature module 4 on the treatment and reinforcement equipment, the temperature inside the gangue pile can be monitored in real time, avoiding the situation in the related art where drilling temperature measurement and grouting need to be carried out in stages, realizing the parallel operation of the two, and improving the operation efficiency.

[0058] In some embodiments, at least one outlet includes a first outlet 23 and a plurality of second outlets 24. The first outlet 23 is for discharging the fire extinguishing gas, and the second outlets 24 are for discharging the fire extinguishing slurry. A plurality of channels are provided in the cylinder body 2. The plurality of channels include a first channel and a plurality of second channels. The first channel is connected between the first inlet 21 and the first outlet 23, and the plurality of second channels are respectively connected between the plurality of second inlets 22 and the plurality of second outlets 24.

[0059] For example, as Figure 2 shown, the first outlet 23 may be a through hole. The first outlet 23 may penetrate the cylinder wall of the cylinder body 2 along the radial direction of the cylinder body 2, and there may be a plurality of first outlets 23. The plurality of first outlets 23 may be arranged at intervals along the circumferential direction of the cylinder body 2, so that the fire extinguishing gas can be evenly distributed on the circumferential side of the cylinder body 2, which is beneficial to ensuring the fire extinguishing effect. There may also be a plurality of second outlets 24, and the number of the second outlets 24 may be the same as the number of the first inlets 21.

[0060] A plurality of channels may be provided in the cylinder body 2. For example, a plurality of partition plates may be provided in the cylinder body 2. The partition plates and the inner wall of the cylinder body 2 may enclose channels. According to the different media introduced, the plurality of channels may include a first channel and a plurality of second channels. The first channel may be connected between the corresponding first inlet 21 and the first outlet 23. The number of the plurality of second channels is the same as the number of the second inlets 22 (second outlets 24), and each second channel is connected between the corresponding second inlet 22 and the second outlet 24.

[0061] Thus, the corresponding fire extinguishing slurry injected through the corresponding second inlet 22 can be transported to the corresponding second outlet 24 through the corresponding channel, making the transportation of various types of fire extinguishing slurries relatively independent. On the one hand, this can avoid the reaction of different types of fire extinguishing slurries in the cylinder body 2, and further avoid problems such as reaction consolidation that are likely to cause blockage of the cylinder body 2, thus ensuring the stability of use. On the other hand, due to the relative independence of transportation, it also avoids the situation that the different fire extinguishing slurries remaining in the cylinder body 2 are easily doped when injecting fire extinguishing slurry at another fire extinguishing position, ensuring the purity of the fire extinguishing slurry.

[0062] Optionally, the plurality of first outlets 23 are located between the plate body 1 and the plurality of second outlets 24. For example, as Figure 2 shown, in the up-down direction, the plurality of first outlets 23 and the plurality of second outlets 24 are both located at the bottom of the cylinder body 2, and the plurality of first outlets 23 are all located above the plurality of second outlets 24.

[0063] In some embodiments, the treatment and reinforcement device includes a plurality of slurry pipes 6. The plurality of slurry pipes 6 all pass through the plate body 1 and extend into the cylinder body 2. The pipe orifices of the plurality of slurry pipes 6 located outside the plate body 1 all form second inlets 22. The pipe orifices of the plurality of slurry pipes 6 located inside the cylinder body 2 are respectively communicated with corresponding second outlets 24. The inner cavity of the slurry pipe 6 forms a second channel.

[0064] For example, as Figure 2 shown, the slurry pipe 6 can pass through the plate body 1 and be fixedly connected to the plate body 1. Specifically, the top end of each slurry pipe 6 can extend to the upper side of the plate body 1, the bottom end of each slurry pipe 6 can extend into the cylinder body 2 and can be fixedly connected to the inner wall of the cylinder body 2, and the outlet of each slurry pipe 6 can be in one-to-one correspondence and communication with the corresponding second inlet 22.

[0065] During use, the corresponding fire extinguishing slurries can be injected through the plurality of slurry pipes 6 respectively. The arrangement of the slurry pipes 6 facilitates the docking and installation with external grouting equipment and also facilitates the formation of different second channels inside the cylinder body 2.

[0066] In some embodiments, the treatment and reinforcement device includes a gas pipe. The gas pipe passes through the plate body 1 and extends into the cylinder body 2. The pipe orifice of the gas pipe located outside the plate body 1 forms a first inlet 21. The pipe orifice of the gas pipe located inside the cylinder body 2 is indirectly connected to the first outlet 23 through the inner cavity of the cylinder body 2, and the inner cavity of the cylinder body 2 forms a first channel.

[0067] For example, the gas pipe can pass through the plate body 1 and be fixedly connected to the plate body 1, that is, the top end of the gas pipe can extend to the upper side of the plate body 1, and the bottom end of the gas pipe can extend into the cylinder body 2 and be communicated with the inner cavity of the cylinder body 2. During use, fire extinguishing gas can be injected into the inner cavity of the cylinder body 2 through the gas pipe, and then the fire extinguishing gas can be discharged through the first outlet 23 on the cylinder body 2. Thus, the transportation of the fire extinguishing gas can be realized by means of the inner cavity of the cylinder body 2, and the separation and independence of the transportation of the fire extinguishing gas and the fire extinguishing slurry are achieved.

[0068] In some embodiments, the temperature module 4 includes a temperature sensor 41, a temperature display 43 and a cable 42. The temperature sensor 41 is arranged at one end of the cylinder body 2 where the outlet is provided. The temperature display 43 is arranged on the plate body 1. The cable 42 electrically connects the temperature sensor 41 and the temperature display 43.

[0069] For example, as Figure 2As shown, the temperature sensor 41 can be installed at the bottom of the cylinder body 2. The cable 42 can be a high-temperature resistant cable. The cable 42 can be threaded through the cylinder body 2 and can pass out through the through hole on the plate body 1. The temperature display 43 can be installed on the upper side of the plate body 1 and connected to the cable 42. During use, the temperature sensor 41 can monitor the temperature inside the gangue pile in real time, and the temperature display 43 can display the temperature in real time in the form of a reading, thus facilitating personnel to understand the temperature information at the drill bit (the bottom of the cylinder body 2) in real time.

[0070] In some embodiments, a valve is provided at the outlet. The valve can control the opening and closing of the outlet, thereby playing a role in timely closing the grouting, and further ensuring the orderliness of the grouting process.

[0071] In some embodiments, the fixing member 3 includes an anchor rod 31 and an anchor plate 32. The anchor rod 31 passes through the plate body 1 and is used to be fixed in the gangue pile. The anchor plate 32 is connected to the anchor rod 31 and is in a stop assembly with the plate body 1.

[0072] For example, as Figure 1 and Figure 2 shown, four fixing members 3 can be provided. The four fixing members 3 can be respectively installed at the four corners of the plate body 1. During the grouting process, due to the dynamic backwash of the fire extinguishing gas and the fire extinguishing slurry, the fixing member 3 can provide a reverse force, thereby ensuring the overall stability of the equipment.

[0073] The self-ignition control method of the embodiments of the present invention will be described below.

[0074] The self-ignition control method of the embodiments of the present invention includes the following steps:

[0075] S1: Determine the location of the ignition point on the gangue pile, construct an installation hole at the ignition point location, and then insert the cylinder body 2 of the treatment and reinforcement equipment into the installation hole. Specifically, after cleaning the slope of the coal gangue, a temperature measuring device can be used to determine the location of the ignition point on the slope, and then a long spiral grouting pile foundation can be used to form a hole on the slope. After the installation hole is formed, the cylinder body 2 of the treatment and reinforcement equipment can be inserted into the installation hole.

[0076] S2: Divide the gangue pile into multiple sections in the up and down directions, and then gradually lift the treatment and reinforcement equipment upward to perform fire extinguishing operations on each section in sequence from bottom to top. And the fire extinguishing operation for each section includes the following steps:

[0077] S21: Inject fire extinguishing gas into the corresponding section through the first inlet 21. The fire extinguishing gas is introduced before grouting. On the one hand, the fire extinguishing gas can play a role in extinguishing the fire at the bottom. That is, due to the phase change and volume expansion of the fire extinguishing gas, the fire extinguishing gas can quickly spread from the injection point to other areas, and can displace and rise the hot flue gas in the gangue pile, making it rise to the surface of the coal gangue mountain, achieving the dual effects of isolating air and extinguishing fire and reducing temperature.

[0078] On the other hand, since the driving forces for the transportation of the fire extinguishing gas are pressure and buoyancy, it is relatively easy to spread to the entire fire area, thus ensuring a relatively large fire extinguishing range.

[0079] S22: Use the temperature module 4 to monitor the temperature of the corresponding section.

[0080] S23: If the monitored temperature meets the requirements (for example, in the corresponding section, the measured temperature range has dropped below a certain temperature through the injection of the fire extinguishing gas, then it is considered to meet the requirements), then inject the corresponding fire extinguishing slurry into the corresponding section through the corresponding second inlet 22.

[0081] S3: Continue to lift the treatment and reinforcement equipment upward to the set height, and then use the corresponding second inlet 22 to inject the corresponding fire extinguishing material.

[0082] In some embodiments, during the process of injecting the corresponding fire extinguishing slurry into each section, a set amount of water is injected through the corresponding second inlet 22 to play the roles of extinguishing fire, controlling temperature, and adjusting the concentration of the fire extinguishing slurry.

[0083] The following describes a specific example of the spontaneous combustion treatment method of the embodiments of the present invention.

[0084] After cleaning the slope of the coal gangue, use the temperature measuring device to determine the location of the ignition point of the slope. Use the long spiral grouting pile foundation to form holes at the upper part of the slope. Then, place the cylinder body 2 of the treatment and reinforcement equipment in the formed installation holes, and use the temperature module 4 to measure the temperature. According to the temperature characteristics, the specific treatment plan for the next step of the project can be determined.

[0085] The sections of the coal gangue can be divided into two sections along the direction from bottom to top. When installing the treatment and reinforcement equipment, the bottom end of the cylinder body 2 can be first inserted into the bottom of the installation hole. At this time, the outlet on the cylinder body 2 corresponds to the lower section.

[0086] After the governance and reinforcement equipment is placed at the bottom of the hole to receive temperature information feedback, inert gas and other fire extinguishing gases can be injected into the gangue pile through the gas pipe body first, and the fire extinguishing gases escape from the first outlet 23 at the bottom of the cylinder body 2. After a certain period of time, check the temperature change on the temperature display 43. Then, construct the anchor bolt 31 on the plate body 1. During the construction process, the level module 5 can be used to adjust the level of the plate body 1. After the plate body 1 meets the requirements, the anchor plate 32 can be reinforced on the plate body 1, so that the governance and reinforcement equipment can be installed and fixed. After the installation is completed, for the lower area with strong permeability, water glass can be injected into this area through the corresponding second inlet 22, so that the injection of the fire extinguishing slurry at the bottom can be realized. Since the lower area is closer to the ignition point, the water glass grouting improves the isolation effect of the fire area.

[0087] After the grouting of the bottom area is completed, the second outlet 24 for injecting water glass can be blocked (closed control is achieved through the corresponding valve). Then, the governance and reinforcement equipment can be lifted upward by using external equipment until it corresponds to the upper area. Then, fire extinguishing gases can be injected first, and then the temperature module 4 can be used to understand the temperature of the corresponding area. Then, the corresponding second outlet 24 can be opened. For the parts with different permeability in the upper section, grouting for fire extinguishing can be carried out by injecting paste materials. The injection of the paste materials can further improve the slope stability and prevent oxygen penetration. It should be noted that when grouting in this area, a part of the fixing part 3 can be pulled out from the gangue pile, and a part can still be fixedly inserted into the gangue pile.

[0088] After the grouting of the upper area is completed, the governance and reinforcement equipment can be lifted upward continuously. At this time, the fixing part 3 can be removed (the anchor plate 32 is removed and the anchor bolt 31 is taken out). Then, the plate body 1 can be fixed at a height of 0.5 m from the ground by using the support equipment. Then, the corresponding second inlet 22 can be opened, and yellow mud slurry can be injected into the gangue pile through this second inlet 22. The surface layer is grouted with yellow mud slurry to reduce the contact between coal gangue and air.

[0089] The spontaneous combustion governance method of the embodiment of the present invention can targetedly control the grouting materials (fire extinguishing gases and fire extinguishing slurries) according to different levels of the ignition point, realizes the same-hole grouting of different materials, and achieves better fire extinguishing and slope fixation effects.

[0090] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0091] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0092] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0093] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0094] In the present invention, terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0095] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Variations, modifications, substitutions and variations made by those of ordinary skill in the art to the above embodiments are all within the scope of protection of the present invention.

Claims

1. A method for controlling spontaneous combustion for a spontaneous combustion control and reinforcement device based on a gangue slope, characterized in that the spontaneous combustion control and reinforcement device for the gangue slope includes: a plate body, which is used to cover the surface of the gangue pile; a cylinder body, which is connected to the plate body and is used to be inserted into the gangue. One end of the cylinder body used for connecting to the plate body is provided with a first inlet and a plurality of second inlets, and at least one outlet is provided at the other end of the cylinder body. The first inlet is used to introduce a fire extinguishing gas into the cylinder body, and the plurality of second inlets are respectively used to introduce different fire extinguishing slurries into the cylinder body. The outlet is used for the fire extinguishing gas and the fire extinguishing slurry to discharge from the cylinder body and be discharged into the gangue pile; a fixing member, which is used to fix the plate body to the gangue pile; a temperature module, which is arranged on the plate body and the cylinder body and is used to display the temperature in the gangue pile; a leveling module, which is used to calibrate the levelness of the plate body when installing the control and reinforcement device; the method for controlling spontaneous combustion includes the following steps: S1: Determine the location of the ignition point on the gangue pile, construct an installation hole at the ignition point location, and then insert the cylinder body of the control and reinforcement device into the installation hole; S2: Divide the gangue pile into multiple sections in the up and down directions, and then gradually lift the control and reinforcement device upward to perform fire extinguishing operations on each section in sequence from bottom to top. And the fire extinguishing operation for each section includes the following steps: S21: Inject a fire extinguishing gas into the corresponding section through the first inlet; S22: Use the temperature module to monitor the temperature of the corresponding section; S23: If the monitored temperature meets the requirements, inject the corresponding fire extinguishing slurry into the corresponding section through the corresponding second inlet; S3: Continue to lift the control and reinforcement device upward to a set height, and use the corresponding second inlet to fill the corresponding fire extinguishing slurry; During the process of controlling spontaneous combustion, different types of fire extinguishing slurries are injected into the cylinder body through different second inlets, and fire extinguishing slurries suitable for different temperatures shown at different positions are selected.

2. The spontaneous combustion control method according to claim 1, characterized in that, During the process of injecting the corresponding fire extinguishing slurry into each section, a set amount of water is injected through the corresponding second inlet to play the roles of fire extinguishing, temperature control, and adjusting the concentration of the fire extinguishing slurry.

3. According to the method for controlling spontaneous combustion as claimed in claim 1, at least one of the outlets of the spontaneous combustion control and reinforcement device for the gangue slope includes a first outlet and a plurality of second outlets. The first outlet is used for the fire extinguishing gas to discharge, and the second outlet is used for the fire extinguishing slurry to discharge; A plurality of channels are arranged in the cylinder body. The plurality of channels include a first channel and a plurality of second channels. The first channel is connected between the first inlet and the first outlet, and the plurality of second channels are respectively connected between the plurality of second inlets and the plurality of second outlets in one-to-one correspondence.

4. The self-ignition control method according to claim 3, characterized in that The gangue slope spontaneous combustion control and reinforcement equipment includes a plurality of slurry pipes. A plurality of the slurry pipes all pass through the plate body and extend into the cylinder body. The pipe orifices of the plurality of slurry pipes located outside the plate body all form the second inlets. The pipe orifices of the plurality of slurry pipes located inside the cylinder body are respectively communicated with the corresponding second outlets. The inner cavity of the slurry pipe forms the second channel.

5. The spontaneous combustion control method according to claim 4, wherein The gangue slope spontaneous combustion control and reinforcement equipment includes a gas pipe. The gas pipe passes through the plate body and extends into the cylinder body. The pipe orifice of the gas pipe located outside the plate body forms the first inlet. The pipe orifice of the gas pipe located inside the cylinder body is indirectly connected with the first outlet through the inner cavity of the cylinder body. And the inner cavity of the cylinder body forms the first channel.

6. The self-ignition control method according to claim 5, wherein There are a plurality of the first outlets. The plurality of first outlets are arranged at intervals along the circumferential direction of the cylinder body. And the plurality of first outlets are located between the plate body and the plurality of second outlets.

7. The spontaneous combustion control method according to claim 1, characterized in that, The fire extinguishing gas includes at least one of the following: inert gas, carbon dioxide, heptafluoropropane; And / or, the fire extinguishing slurry includes at least one of the following: sodium silicate, fire extinguishing paste, yellow mud slurry.

8. The spontaneous combustion control method according to claim 1, wherein The temperature module includes a temperature sensor, a temperature display and a cable. The temperature sensor is arranged at one end of the cylinder body where the outlet is provided. The temperature display is arranged on the plate body. The cable electrically connects the temperature sensor and the temperature display.

9. The spontaneous combustion control method according to any one of claims 3-8, characterized in that, The level module is arranged on the plate body; And / or, a valve is arranged at the outlet. The valve can control the opening and closing of the outlet; And / or, the fixing member includes an anchor rod and an anchor plate. The anchor rod passes through the plate body and is used to be fixed in the gangue pile. The anchor plate is connected with the anchor rod and is in a blocking fit with the plate body.

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