A method for treating hydrogen sulfide gas in a tunnel

Abstract

The present invention belongs to the technical field of tunnel engineering, and specifically relates to a method for treating hydrogen sulfide gas in a tunnel. Before the construction method of drilling and blasting is adopted, a plurality of installation holes are drilled on the tunnel heading face; and the drilling depth of the installation holes is greater than the drilling depth of the blast holes drilled on the tunnel heading face; when the monitor detects that the hydrogen sulfide gas concentration exceeds the limit value during the tunnel construction process, the monitor transmits the data to an external controller, and the external controller controls the electromagnet seat to be electrified. The electromagnet seat is electrified and generates magnetism, and its magnetism is the same as that of the magnetic column. According to the principle of like poles repelling each other, the magnetic column will drive the piston plate to squeeze the sodium carbonate aqueous solution inside the liquid storage cavity seat. After that, the sodium carbonate aqueous solution will flow out from the inside of the liquid outlet pipe, and the sodium carbonate aqueous solution will react with hydrogen sulfide and finally turn into carbon dioxide, which can effectively reduce the amount of hydrogen sulfide gas discharged to the heading face operation area during the drilling process, bringing convenience to the construction of the staff.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel engineering, and specifically relates to a method for treating hydrogen sulfide gas in a tunnel. Background Art

[0002] During the tunnel construction process, some harmful gases will appear, such as hydrogen sulfide gas.

[0003] Hydrogen sulfide is highly toxic. It can not only cause human blood to lack oxygen and be poisoned, but also has a strong stimulating effect on the eyes and respiratory mucosa, can cause rhinitis, tracheitis and emphysema, strongly stimulate the mucous membranes of the eyes and throat, and cause headache, vomiting, fatigue; even death; Hydrogen sulfide mainly comes from high-sulfur minerals. If there is hydrogen sulfide in the accumulated water in an empty warehouse, it will be released when stirred.

[0004] Publication No. CN206054003U discloses a new type of tunnel hydrogen sulfide gas treatment device, including a backpack box body, a hydrogen sulfide detection device and an alarm device. The backpack box body is made of a metal material resistant to hydrogen sulfide gas corrosion. On one side surface of the backpack box body, two straps are evenly distributed and connected by buckles. One of the straps is provided with a hydrogen sulfide detection device, and the other strap is provided with an alarm device. The hydrogen sulfide detection device and the alarm device are both connected to the strap through a bag type. One end side surface of the backpack box body is provided with a gas input end, and the gas input end is connected to a conveying pipeline by a thread. A connecting strap is provided on the breathing mask. The hydrogen sulfide detection device and the alarm device provided in this treatment device can detect hydrogen sulfide in time, remind the user to put on the breathing mask, and then desulfurize the hydrogen sulfide in the air through the desulfurization device inside the backpack box body to prevent the human body from being invaded by hydrogen sulfide.

[0005] The existing method for treating the overflow of hydrogen sulfide gas in a construction tunnel mainly detects hydrogen sulfide through a hydrogen sulfide detection device and an alarm device, then reminds people to put on a breathing mask, and then desulfurizes with the internal desulfurization of the backpack box. This treatment method is troublesome to operate and requires manual desulfurization by staff, which is inconvenient to use.

[0006] Therefore, the present invention provides a method for treating hydrogen sulfide gas in a tunnel. Summary of the Invention

[0007] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0008] The technical solution adopted by the present invention to solve its technical problems is: A method for treating hydrogen sulfide gas in a tunnel according to the present invention includes the following steps:

[0009] S1. Before adopting the drill and blast method for construction, drill multiple installation holes on the tunnel heading face; and the drilling depth of the installation holes is greater than that of the blast holes drilled on the tunnel heading face.

[0010] S2. Install a fixed seat inside the installation hole, and then inject sealing slurry around the fixed seat to fix the fixed seat; during tunnel construction, when the monitor in the fixed seat detects that the concentration of hydrogen sulfide gas is too high, the external control circuit controls the electromagnet seat to be electrified.

[0011] S3. The electromagnet seat is electrified to generate magnetism, and the magnetism is the same as that of the magnetic column. The magnetic column will drive the piston plate to squeeze the sodium carbonate aqueous solution inside the liquid storage cavity seat. Then, the sodium carbonate aqueous solution will flow out from the inside of the liquid outlet pipe and react with the hydrogen sulfide in the tunnel to form carbon dioxide.

[0012] Through this method for treating hydrogen sulfide gas, the steps are simple, the design is reasonable, and the construction is convenient. Chemical and physical measures are adopted to effectively reduce the discharge amount of hydrogen sulfide gas generated during tunnel construction; it brings convenience to the tunnel construction and improves the safety of tunnel construction.

[0013] Preferably, a monitor is fixedly connected inside the fixed seat; an electromagnet seat is fixedly connected inside the fixed seat; a plurality of support seats are fixedly connected to the outer surface of the electromagnet seat; the support seats are arranged in a circumferential array on the outer surface of the electromagnet seat; a magnetic column is slidably connected inside each support seat; one end of the magnetic column penetrates inside the liquid storage cavity seat; a piston plate is fixedly connected to one end of the magnetic column and located on the inner wall of the liquid storage cavity seat; a liquid outlet pipe is fixedly connected to the outer surface of the liquid storage cavity seat; in this embodiment, the liquid storage cavity seat is filled with sodium carbonate aqueous solution; the hydrogen sulfide in the sodium carbonate aqueous solution reacts chemically with the sodium carbonate in the solution to generate water and carbon dioxide, which is discharged.

[0014] During operation, when the monitor detects that the concentration of hydrogen sulfide gas exceeds the limit value during tunnel construction, the monitor transmits the data to the external controller. The external controller controls the electromagnet seat to be electrified. The electromagnet seat is electrified and generates magnetism, and its magnetism is the same as that of the magnetic column. According to the principle of like poles repelling each other, the magnetic column will drive the piston plate to squeeze the sodium carbonate aqueous solution inside the liquid storage cavity seat. Then, the sodium carbonate aqueous solution will flow out from the inside of the liquid outlet pipe, and the sodium carbonate aqueous solution will react with hydrogen sulfide and finally become carbon dioxide, which can effectively reduce the amount of hydrogen sulfide gas discharged to the heading face operation area during drilling. It has high safety and brings convenience to the construction of the staff.

[0015] Preferably, a limiting groove is formed in the inner wall of the supporting seat; there are two limiting grooves in the inner wall of a single supporting seat; limiting convex seats are fixedly connected to the left and right sides of the magnetic column; the shape of the limiting convex seat is adapted to the shape of the limiting groove; the limiting convex seat is made of rubber; a compression spring is fixedly connected to the outer surface of the magnetic column; during operation, in the initial state, this compression spring is in a compressed state, and the rubber limiting convex seat is stuck inside the limiting groove; when the repulsive force of the magnetic column on the electromagnetic seat is greater than the clamping force of the limiting convex seat, the magnetic column will drive the limiting convex seat to disengage from the limiting groove, and the compression spring will reset from the compressed state. During the reset process, the compression spring will drive the magnetic column to move at a high speed, and then the magnetic column will drive the piston plate to move at a high speed. At this time, the sodium carbonate aqueous solution inside the liquid storage cavity seat will be extruded under a large pressure, so that the amount of the extruded liquid will increase, which is beneficial to the treatment of hydrogen sulfide.

[0016] Preferably, a plurality of liquid outlet pipes are provided and are connected to the outer surface of the liquid storage cavity seat at equal intervals; a flow-through pipe is fixedly connected to the outer surface of the liquid storage cavity seat; by providing the flow-through pipe, the liquid storage cavity seats arranged in a circumferential array can be connected, and the liquid storage cavity seats at different positions are simultaneously squeezed, so that the spraying range of the sodium carbonate aqueous solution is wider, and it can be fused with more hydrogen sulfide gas, which is convenient for the construction of the tunnel.

[0017] Preferably, a connecting frame is fixedly connected to the side of the magnetic column close to the liquid storage cavity seat; a limiting rod is fixedly connected to the bottom surface of the connecting frame; the end of the limiting rod away from the connecting frame penetrates inside the liquid outlet pipe; liquid permeating holes are formed in the surface of the limiting rod; during operation, in the initial state, the liquid permeating holes on the surface of the limiting rod are on the side away from the liquid outlet pipe. When the magnetic column moves, it will drive the connecting frame and the limiting rod to move at the same time. Then the liquid permeating holes will be on the same horizontal plane as the liquid outlet pipe. After that, the sodium carbonate aqueous solution inside the liquid storage cavity seat will flow out from the liquid outlet pipe and the liquid permeating holes, playing a role of blocking the sodium carbonate aqueous solution inside the liquid storage cavity seat by the limiting rod when not in use.

[0018] Preferably, a plurality of liquid permeating holes are provided, and the liquid permeating holes and the liquid outlet pipes are arranged in one-to-one correspondence; the width of the liquid outlet pipe is greater than the width of the liquid permeating hole; since the width of the liquid outlet pipe is greater than the width of the liquid permeating hole, when the sodium carbonate aqueous solution flows out through the liquid outlet pipe and the liquid permeating hole, its flow rate will increase, which is beneficial to the fusion with hydrogen sulfide gas.

[0019] Preferably, a supporting plate is fixedly connected to the bottom surface of the liquid storage cavity seat; an extrusion spring is fixedly connected to the surface of the supporting plate; the upper surface of the extrusion spring is connected to the lower end of the limiting rod; by providing the extrusion spring and the supporting plate, a certain limiting effect can be exerted on the limiting rod, avoiding the phenomenon that the liquid permeating holes and the liquid outlet pipe are not on the same horizontal plane due to the excessive movement distance of the limiting rod.

[0020] Preferably, a limiting shaft is fixedly connected to the side surface of the electromagnetic seat; an annular plate is fixedly connected inside the fixed seat; an arc-shaped groove is formed inside the annular plate; one end of the limiting shaft away from the electromagnetic seat penetrates into the arc-shaped groove; a magnetic pressing column is fixedly connected to the outer surface of the limiting shaft; a tension spring is sleeved on the outer surface of the magnetic pressing column; during operation, when the electromagnetic seat is electrified to generate magnetism, its magnetism is the same as that of the magnetic pressing column. According to the principle of like poles repelling each other, the magnetic pressing column will drive the limiting shaft and the electromagnetic seat along the trajectory of the arc-shaped groove, so that the electromagnetic seat drives the support seats arranged in a circumferential array to move, thereby making the liquid storage cavity seat on its surface move along the arc-shaped groove, further increasing the range of the sodium carbonate aqueous solution ejected by the liquid storage cavity seat, and further enabling the sodium carbonate aqueous solution to absorb more hydrogen sulfide gas, with higher safety.

[0021] Preferably, the shape of the end of the magnetic pressing column away from the limiting shaft is circular; and the circular end is arranged inside the arc-shaped groove; a connecting rod is arranged on the outer surface of the magnetic pressing column; a support rod is arranged on the outer surface of the limiting shaft; during operation, the support rod and the connecting rod are arranged, enabling the magnetic pressing column and the limiting shaft to move more conveniently inside the arc-shaped groove.

[0022] Preferably, a clamping seat is clamped on the outer surface of the flow pipe; a through groove adapted to the clamping seat is formed on the surface of the flow pipe; the clamping seat is provided, and the clamping seat can be pulled out, thereby facilitating the introduction of the sodium carbonate aqueous solution into the flow pipe and the liquid storage cavity seat, and being more convenient to use.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. For the method for treating hydrogen sulfide gas in a tunnel of the present invention, the sodium carbonate aqueous solution flows out from the inside of the liquid outlet pipe, and the sodium carbonate aqueous solution reacts with hydrogen sulfide and finally becomes carbon dioxide, which can effectively reduce the amount of hydrogen sulfide gas discharged into the heading face operation area during the drilling process. The steps are simple, the design is reasonable, and the construction is simple. Chemical and physical measures are adopted to effectively reduce the discharge amount of hydrogen sulfide gas generated during tunnel construction; it brings convenience to the tunnel construction and improves the safety of tunnel construction.

[0025] 2. For the method for treating hydrogen sulfide gas in a tunnel of the present invention, the magnetic pressing column drives the limiting shaft and the electromagnetic seat along the trajectory of the arc-shaped groove, so that the electromagnetic seat drives the support seats arranged in a circumferential array to move, thereby making the liquid storage cavity seat on its surface move along the arc-shaped groove, further increasing the range of the sodium carbonate aqueous solution ejected by the liquid storage cavity seat, and further enabling the sodium carbonate aqueous solution to absorb more hydrogen sulfide gas, with higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the drawings.

[0027] Figure 1 is the process flow chart of the present invention;

[0028] Figure 2 is the three-dimensional view of the fixing base of the present invention;

[0029] Figure 3 is the cross-sectional view of the tunnel heading face in the present invention;

[0030] Figure 4 is in the present invention Figure 3 the enlarged view of the structure at position A;

[0031] Figure 5 is in the present invention Figure 4 the enlarged view of the structure at position B;

[0032] Figure 6 is the partial structure schematic diagram of the annular plate in the present invention;

[0033] Figure 7 is the schematic diagram of the card seat structure of the second embodiment in the present invention.

[0034] In the figure: 1, fixing base; 2, monitor; 3, electromagnetic seat; 4, support seat; 41, magnetic column; 42, compression spring; 5, liquid storage cavity seat; 51, circulation pipeline; 52, card seat; 6, piston plate; 7, liquid outlet pipe; 8, limiting groove; 9, limiting convex seat; 10, connecting frame; 11, limiting rod; 12, liquid permeating hole; 13, supporting plate; 14, extrusion spring; 15, limiting shaft; 16, annular plate; 17, arc groove; 18, magnetic pressing column; 181, connecting rod; 19, tension spring; 20, support rod. Specific embodiments

[0035] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0036] Embodiment 1

[0037] As Figure 1 shown, a method for treating hydrogen sulfide gas in a tunnel according to an embodiment of the present invention includes the following steps:

[0038] S1. Before adopting the drill and blast method for construction, first drill a plurality of installation holes on the tunnel heading face; and the drilling depth of the installation holes is greater than the drilling depth of the blast holes drilled on the tunnel heading face;

[0039] S2. Install the fixing seat 1 into the installation hole, and then inject sealing slurry around the fixing seat 1 to fix the fixing seat 1. During tunnel construction, when the monitor 2 in the fixing seat 1 detects that the concentration of hydrogen sulfide gas is too high, the external control circuit is used to control the electromagnetic seat 3 to be electrified;

[0040] S3. When the electromagnetic seat 3 is electrified, it generates magnetism, and the magnetism is the same as that of the magnetic column 41. The magnetic column 41 will drive the piston plate 6 to squeeze the sodium carbonate aqueous solution inside the liquid storage cavity seat 5. Then, the sodium carbonate aqueous solution will flow out from the inside of the liquid outlet pipe 7 and react with the hydrogen sulfide in the tunnel to form carbon dioxide.

[0041] Through this method for treating hydrogen sulfide gas, the steps are simple, the design is reasonable, and the construction is convenient. Chemical and physical measures are used to effectively reduce the discharge amount of hydrogen sulfide gas generated during tunnel construction, which brings convenience to tunnel construction and improves the safety of tunnel construction.

[0042] As Figures 2 to 5 shown, a monitor 2 is fixedly connected inside the fixing seat 1; an electromagnetic seat 3 is fixedly connected inside the fixing seat 1; a plurality of support seats 4 are fixedly connected to the outer surface of the electromagnetic seat 3; the support seats 4 are arranged in a circumferential array on the outer surface of the electromagnetic seat 3; a magnetic column 41 is slidably connected inside each support seat 4; a liquid storage cavity seat 5 is fixedly connected to the side of the support seat 4 away from the electromagnetic seat 3; one end of the magnetic column 41 penetrates inside the liquid storage cavity seat 5; a piston plate 6 is fixedly connected to one end of the magnetic column 41 and located on the inner wall of the liquid storage cavity seat 5; a liquid outlet pipe 7 is fixedly connected to the outer surface of the liquid storage cavity seat 5. In this embodiment, the liquid storage cavity seat 5 is filled with a sodium carbonate aqueous solution; the hydrogen sulfide in the sodium carbonate aqueous solution reacts with the sodium carbonate in the solution to generate water and carbon dioxide, which are discharged.

[0043] During operation, when the monitor 2 detects that the concentration of hydrogen sulfide gas during tunnel construction exceeds the limit value, the monitor 2 transmits the data to the external controller. The external controller controls the electromagnetic seat 3 to be electrified. The electromagnetic seat 3 is electrified and generates magnetism, and its magnetism is the same as that of the magnetic column 41. According to the principle of like poles repelling each other, the magnetic column 41 will drive the piston plate 6 to squeeze the sodium carbonate aqueous solution inside the liquid storage cavity seat 5. Then, the sodium carbonate aqueous solution will flow out from the inside of the liquid outlet pipe 7, and the sodium carbonate aqueous solution will react with the hydrogen sulfide and finally turn into carbon dioxide, which can effectively reduce the amount of hydrogen sulfide gas discharged into the heading face operation area during drilling, with high safety and bringing convenience to the construction of the staff.

[0044] The inner wall of the support seat 4 is provided with a limiting groove 8; there are two limiting grooves 8 on the inner wall of a single support seat 4; the left and right sides of the magnetic column 41 are fixedly connected to the limiting convex seat 9; the shape of the limiting convex seat 9 is adapted to the shape of the limiting groove 8; the material of the limiting convex seat 9 is rubber; the outer surface of the magnetic column 41 is fixedly connected with a compression spring 42; when working, in the initial state, the compression spring 42 is in an extruded state, and the limiting convex seat 9 made of rubber material is stuck in the inside of the limiting groove 8; when the repulsive force of the electromagnetic seat 3 on the magnetic column 41 is greater than the clamping force of the limiting convex seat 9, the magnetic column 41 will drive the limiting convex seat 9 to disengage from the limiting groove 8, and the compression spring 42 will reset from the extruded state. During the resetting process, the compression spring 42 will drive the magnetic column 41 to move at a higher speed, and then the magnetic column 41 will drive the piston plate 6 to move at a higher speed. At this time, the sodium carbonate aqueous solution inside the liquid storage chamber seat 5 will be squeezed out under greater pressure, so that the amount of extrusion will increase, which is beneficial to the treatment of hydrogen sulfide.

[0045] There are multiple liquid outlet pipes 7, which are equidistantly connected to the outer surface of the liquid storage chamber seat 5; the outer surface of the liquid storage chamber seat 5 is fixedly connected with a flow pipe 51; the flow pipe 51 is provided to connect the liquid storage chamber seats 5 arranged in a circular array, and the liquid storage chamber seats 5 at different positions are squeezed at the same time, so that the sodium carbonate aqueous solution can be sprayed over a wider range and can be merged with more hydrogen sulfide gas, which facilitates the construction of the tunnel.

[0046] The magnetic column 41 is fixedly connected to a connecting frame 10 on one side close to the liquid storage chamber seat 5; a limiting rod 11 is fixedly connected to the bottom surface of the connecting frame 10; the end of the limiting rod 11 away from the connecting frame 10 passes through the inside of the liquid outlet pipe 7; a liquid permeable hole 12 is opened on the surface of the limiting rod 11; when working, in the initial state, the liquid permeable hole 12 on the surface of the limiting rod 11 is on the side away from the liquid outlet pipe 7, when the magnetic column 41 moves, it will simultaneously drive the connecting frame 10 and the limiting rod 11 to move, and then the liquid permeable hole 12 will be on the same horizontal plane with the liquid outlet pipe 7, and then the sodium carbonate aqueous solution inside the liquid storage chamber seat 5 will flow out from the liquid outlet pipe 7 and the liquid permeable hole 12, so that the limiting rod 11 can block the sodium carbonate aqueous solution inside the liquid storage chamber seat 5 when not in use.

[0047] There are multiple liquid permeable holes 12, and the liquid permeable holes 12 and the liquid outlet pipe 7 are arranged in a one-to-one correspondence; the width of the liquid outlet pipe 7 is greater than the width of the liquid permeable holes 12; because the width of the liquid outlet pipe 7 is greater than the width of the liquid permeable holes 12, the flow rate of the sodium carbonate aqueous solution will increase when it flows out through the liquid outlet pipe 7 and the liquid permeable holes 12, which is beneficial to the fusion of hydrogen sulfide gas.

[0048] The bottom surface of the liquid storage cavity seat 5 is fixedly connected with a supporting plate 13; the surface of the supporting plate 13 is fixedly connected with a compression spring 14; the upper surface of the compression spring 14 is connected with the lower end of the limiting rod 11; the compression spring 14 and the supporting plate 13 are arranged to play a certain limiting role on the limiting rod 11, avoiding the phenomenon that the limiting rod 11 moves too far and the liquid permeating holes 12 and the liquid outlet pipe 7 are not on the same horizontal plane.

[0049] As Figure 3 and Figure 6 shown, a limiting shaft 15 is fixedly connected to the side surface of the electromagnetic seat 3; an annular plate 16 is fixedly connected inside the fixed seat 1; an arc-shaped groove 17 is formed inside the annular plate 16; one end of the limiting shaft 15 far away from the electromagnetic seat 3 penetrates into the arc-shaped groove 17; a magnetic pressing column 18 is fixedly connected to the outer surface of the limiting shaft 15; a tension spring 19 is sleeved on the outer surface of the magnetic pressing column 18; during operation, when the electromagnetic seat 3 is electrified to generate magnetism, its magnetism is the same as that of the magnetic pressing column 18. According to the principle of like poles repelling each other, the magnetic pressing column 18 will drive the limiting shaft 15 and the electromagnetic seat 3 along the track of the arc-shaped groove 17, so that the electromagnetic seat 3 drives the support seats 4 arranged in a circumferential array to move, thereby making the liquid storage cavity seat 5 on its surface move along the arc-shaped groove 17, further increasing the range of the sodium carbonate aqueous solution sprayed by the liquid storage cavity seat 5, and thus enabling the sodium carbonate aqueous solution to absorb more hydrogen sulfide gas, with higher safety.

[0050] One end of the magnetic pressing column 18 far away from the limiting shaft 15 is circular in shape; and the circular end is arranged inside the arc-shaped groove 17; a connecting rod 181 is arranged on the outer surface of the magnetic pressing column 18; a support rod 20 is arranged on the outer surface of the limiting shaft 15; during operation, the support rod 20 and the connecting rod 181 are arranged to enable the magnetic pressing column 18 and the limiting shaft 15 to move more conveniently inside the arc-shaped groove 17.

[0051] Embodiment 2

[0052] As Figure 7 shown, compared with Embodiment 1, another implementation manner of the present invention is: a clamping seat 52 is clamped on the outer surface of the flow pipe 51; a through groove adapted to the clamping seat 52 is formed on the surface of the flow pipe 51; the clamping seat 52 is arranged, and the clamping seat 52 can be pulled out, so that it is convenient to introduce the sodium carbonate aqueous solution into the flow pipe 51 and the liquid storage cavity seat 5, and it is more convenient to use.

[0053] During operation, when monitor 2 detects that the concentration of hydrogen sulfide gas exceeds the limit value during tunnel construction, monitor 2 transmits the data to an external controller. The external controller controls the electromagnet seat 3 to be energized. The electromagnet seat 3 is energized and generates magnetism, and its magnetism is the same as that of the magnetic column 41. According to the principle of like poles repelling each other, the magnetic column 41 will drive the piston plate 6 to squeeze the sodium carbonate aqueous solution inside the liquid storage cavity seat 5. Then, the sodium carbonate aqueous solution will flow out from the inside of the liquid outlet pipe 7, and the sodium carbonate aqueous solution will react with hydrogen sulfide and finally turn into carbon dioxide, which can effectively reduce the amount of hydrogen sulfide gas discharged into the heading face operation area during drilling; in the initial state, this compression spring 42 is in a compressed state, and the rubber material limiting convex seat 9 is stuck inside the limiting groove 8; when the repulsive force of the magnetic column 41 from the electromagnet seat 3 is greater than the clamping force of the limiting convex seat 9, the magnetic column 41 will drive the limiting convex seat 9 to disengage from the limiting groove 8, and the compression spring 42 will return from the compressed state. During the reset process, the compression spring 42 will drive the magnetic column 41 to move at a high speed, and then the magnetic column 41 will drive the piston plate 6 to move at a high speed. At this time, the sodium carbonate aqueous solution inside the liquid storage cavity seat 5 will be extruded under a large pressure, so the amount of extrusion will increase, which is beneficial to the treatment of hydrogen sulfide.

[0054] A flow-through pipe 51 is provided, which can connect the liquid storage cavity seats 5 arranged in a circumferential array, and the liquid storage cavity seats 5 at different positions are simultaneously squeezed, so that the spraying range of the sodium carbonate aqueous solution is wider, and it can be fused with more hydrogen sulfide gas, facilitating the construction of the tunnel; in the initial state, the liquid permeating holes 12 on the surface of the limiting rod 11 are on the side away from the liquid outlet pipe 7. When the magnetic column 41 moves, it will drive the connecting frame 10 and the limiting rod 11 to move at the same time. Then, the liquid permeating holes 12 will be on the same horizontal plane as the liquid outlet pipe 7. Then, the sodium carbonate aqueous solution inside the liquid storage cavity seat 5 will flow out from the liquid outlet pipe 7 and the liquid permeating holes 12, playing a role in blocking the sodium carbonate aqueous solution inside the liquid storage cavity seat 5 by the limiting rod 11 when not in use; since the width of the liquid outlet pipe 7 is greater than the width of the liquid permeating holes 12, when the sodium carbonate aqueous solution flows out through the liquid outlet pipe 7 and the liquid permeating holes 12, its flow rate will increase, which is beneficial to the fusion of hydrogen sulfide gas.

[0055] The extrusion spring 14 and the supporting plate 13 are provided, which can play a certain limiting role on the limiting rod 11, avoiding the phenomenon that the moving distance of the limiting rod 11 is too large, resulting in the liquid permeating holes 12 and the liquid outlet pipe 7 not being on the same horizontal plane; when the electromagnetic seat 3 is energized to generate magnetism, its magnetism is the same as that of the magnetic pressure column 18. According to the principle of like poles repelling each other, the magnetic pressure column 18 will drive the limiting shaft 15 and the electromagnetic seat 3 along the track of the arc groove 17, so that the electromagnetic seat 3 drives the supporting seats 4 arranged in a circumferential array to move, so that the liquid storage cavity seat 5 on its surface moves along the arc groove 17, further increasing the range of the sodium carbonate aqueous solution sprayed by the liquid storage cavity seat 5, and thus enabling the sodium carbonate aqueous solution to absorb more hydrogen sulfide gas, with higher safety; the support rod 20 and the connecting rod 181 are provided, which can make the magnetic pressure column 18 and the limiting shaft 15 move in the arc groove 17 more conveniently; the clamping seat 52 is provided, and the clamping seat 52 can be pulled out, so that it is convenient to introduce the sodium carbonate aqueous solution into the flow pipeline 51 and the liquid storage cavity seat 5, and the use is more convenient.

[0056] The above front, back, left, right, up, and down are all based on the Figure 1 description in the attached drawings of the specification. Taking the observer's perspective as the standard, the side of the device facing the observer is defined as the front, and the left side of the observer is defined as the left, and so on.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It 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 cannot be understood as a limitation on the protection scope of the present invention.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for treating hydrogen sulfide gas in a tunnel, characterized in that: It includes the following steps: S1. Before the construction by drill and blast method, drill a plurality of installation holes on the tunnel face; and the drilling depth of the installation holes is greater than the drilling depth of the blast holes drilled on the tunnel face; S2. Install a fixing seat (1) inside the installation hole, and then inject a sealing slurry around the fixing seat (1) to fix the fixing seat (1); during the tunnel construction, when the monitor (2) in the fixing seat (1) detects that the concentration of hydrogen sulfide gas is too high, control the electromagnetic seat (3) to be electrified through an external control circuit; S3. When the electromagnetic seat (3) is electrified, it generates magnetism, and the magnetism is the same as that of the magnetic column (41). The magnetic column (41) drives the piston plate (6) to squeeze the sodium carbonate aqueous solution inside the liquid storage cavity seat (5), and then the sodium carbonate aqueous solution flows out from the inside of the liquid outlet pipe (7) and reacts with the hydrogen sulfide in the tunnel to form carbon dioxide; A monitor (2) is fixedly connected inside the fixing seat (1); an electromagnetic seat (3) is fixedly connected inside the fixing seat (1); a plurality of support seats (4) are fixedly connected to the outer surface of the electromagnetic seat (3); the support seats (4) are arranged in a circumferential array on the outer surface of the electromagnetic seat (3); a magnetic column (41) is slidably connected inside each support seat (4); a liquid storage cavity seat (5) is fixedly connected to the side of the support seat (4) away from the electromagnetic seat (3); one end of the magnetic column (41) penetrates inside the liquid storage cavity seat (5); a piston plate (6) is fixedly connected to one end of the magnetic column (41) and located on the inner wall of the liquid storage cavity seat (5); a liquid outlet pipe (7) is fixedly connected to the outer surface of the liquid storage cavity seat (5); A limiting groove (8) is provided on the inner wall of the support seat (4); the number of the limiting grooves (8) on the inner wall of a single support seat (4) is two; limiting convex seats (9) are fixedly connected to the left and right sides of the magnetic column (41); the shape of the limiting convex seat (9) is adapted to the shape of the limiting groove (8); the material of the limiting convex seat (9) is rubber; a compression spring (42) is fixedly connected to the outer surface of the magnetic column (41).

2. The method for treating hydrogen sulfide gas in a tunnel according to claim 1, wherein: A plurality of the liquid outlet pipes (7) are provided and are connected to the outer surface of the liquid storage cavity seat (5) at equal distances; a flow pipe (51) is fixedly connected to the outer surface of the liquid storage cavity seat (5).

3. A method for treating hydrogen sulfide gas in a tunnel according to claim 1, characterized in that: A connecting frame (10) is fixedly connected to the side of the magnetic column (41) close to the liquid storage cavity seat (5); a limiting rod (11) is fixedly connected to the bottom surface of the connecting frame (10); one end of the limiting rod (11) away from the connecting frame (10) penetrates inside the liquid outlet pipe (7); liquid permeating holes (12) are provided on the surface of the limiting rod (11).

4. The treatment method of hydrogen sulfide gas in a tunnel according to claim 3, characterized in that: A plurality of the liquid permeating holes (12) are provided, and the liquid permeating holes (12) and the liquid outlet pipe (7) are arranged in one-to-one correspondence; the width of the liquid outlet pipe (7) is greater than the width of the liquid permeating holes (12).

5. A method for treating hydrogen sulfide gas in a tunnel according to claim 4, characterized in that: A supporting plate (13) is fixedly connected to the bottom surface of the liquid storage cavity seat (5); a compression spring (14) is fixedly connected to the surface of the supporting plate (13); the upper surface of the compression spring (14) is connected to the lower end of the limiting rod (11).

6. The treatment method of hydrogen sulfide gas in a tunnel according to claim 5, characterized in that: A limiting shaft (15) is fixedly connected to the side surface of the electromagnetic seat (3); an annular plate (16) is fixedly connected inside the fixed seat (1); an arc-shaped groove (17) is formed inside the annular plate (16); one end of the limiting shaft (15) away from the electromagnetic seat (3) penetrates inside the arc-shaped groove (17); a magnetic pressure column (18) is fixedly connected to the outer surface of the limiting shaft (15); a tension spring (19) is sleeved on the outer surface of the magnetic pressure column (18).

7. The treatment method of hydrogen sulfide gas in a tunnel according to claim 6, characterized in that: One end of the magnetic pressure column (18) away from the limiting shaft (15) is circular in shape; and the circular end is arranged inside the arc-shaped groove (17); a connecting rod (181) is arranged on the outer surface of the magnetic pressure column (18); a support rod (20) is arranged on the outer surface of the limiting shaft (15).

8. The method for treating hydrogen sulfide gas in a tunnel according to claim 2, characterized in that: A clamping seat (52) is clamped on the outer surface of the flow pipeline (51); a through groove adapted to the clamping seat (52) is formed on the surface of the flow pipeline (51).

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