Efficient anti-blocking harmful gas treatment device for TBM tunneling

Abstract

The invention belongs to the technical field of tunnel construction, and particularly relates to an efficient anti-blocking harmful gas treatment device for TBM tunneling. Comprising an adjusting box, and the top of the adjusting box communicates with an air inlet fan; an adjusting mechanism is installed in the adjusting box and used for adjusting the air inlet direction. Two liquid storage boxes are symmetrically and fixedly mounted on the two sides of the bottom of the adjusting box, the interiors of the liquid storage boxes communicate with the bottom of the adjusting box through exhaust pipes, and micro air pumps are mounted on the exhaust pipes; and a dust storage tank is mounted in the middle of the bottom of the adjusting box. While harmful gas is treated, dust is fully filtered and collected, and the problems of blockage and difficulty in cleaning caused by excessive dust entering the liquid storage tank are avoided; a worker is reminded of blockage of the filter plate in time, so that the adjusting mechanism can be quickly and timely controlled to adjust the air inlet direction, and efficient blockage prevention is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel construction, and particularly relates to a harmful gas treatment device for TBM tunnel boring that can efficiently prevent blockage. Background Art

[0002] TBM tunnel boring refers to a technology of using a tunnel boring machine to excavate tunnels. A TBM is an automated mechanical device specifically designed for underground tunnel excavation, which can operate under different soil and rock conditions. The TBM cuts the soil layer by rotating the cutter head, transports and discharges the excavated soil, and provides support for tunnel construction at the same time.

[0003] During the process of TBM tunnel boring, some harmful gases may be generated. During the excavation process, the soil and rock traversed may release some harmful gases (such as radon, hydrogen sulfide, etc.), and at the same time, particulate impurities such as dust will be generated, which need to be emergently treated at any time.

[0004] Chinese Patent with Application No. 202323559831.6 discloses a harmful gas purification device for tunnel construction, including: a purification box body fixedly arranged on a traveling device; the purification box body has a completely independent upper space and lower space; an air delivery pipe, a first air pump, a filter screen assembly, and an adsorption assembly are sequentially arranged in the upper space; one end of the air delivery pipe extends out of the top of the purification box body; the intake end of the first air pump is communicated with the air delivery pipe, and its outlet end faces the filter screen assembly; a purification assembly and a second air pump are arranged in the lower space, the purification assembly includes a solution tank and a diversion pipe, one end of the diversion pipe extends into the solution tank, and the other end extends into the upper space; an exhaust hole is opened on the side wall of the purification box body, and the outlet end of the second air pump is communicated with the exhaust hole. This patent can timely and specifically treat the harmful gases locally appearing in the tunnel, effectively improving the treatment efficiency of harmful gases.

[0005] When simultaneously treating dust and harmful gases, if a filter structure with better filtering performance is used, it is easy to cause blockage of the filter structure, resulting in the inability of the device to perform subsequent harmful gas treatment; if a filter structure with larger filter holes is used, the ventilation effect can be guaranteed, but some dust will follow into the treatment liquid, resulting in too much dust accumulation inside the box body that accommodates the treatment liquid, causing blockage of the box body and difficulty in cleaning; moreover, when treating through the filter structure, it is often difficult to detect the blockage of the filter mechanism in time, resulting in the equipment still working after the filter structure is blocked, and finally the filtering effect of the equipment deteriorates. Summary of the Invention

[0006] In order to solve the deficiencies of the existing technology, the present invention provides a harmful gas treatment device for TBM tunnel boring that can efficiently prevent blockages. While the present invention realizes the treatment of harmful gases, it fully filters and collects dust, avoiding the problems of excessive dust entering the liquid storage tank resulting in blockages and difficulty in cleaning; at the same time, the present invention can not only quickly solve the problem of filter plate blockage, but also automatically clean the filter plate, and can ensure the continuous operation of the equipment without shutdown; the present invention timely reminds the staff of the filter plate blockage, so as to quickly and timely control the adjustment mechanism to adjust the air intake direction and achieve efficient anti-blockage.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A harmful gas treatment device for TBM tunnel boring that can efficiently prevent blockages, including an adjustment box, the top of the adjustment box is connected and installed with an intake fan; an adjustment mechanism is installed inside the adjustment box, and the adjustment mechanism is used to adjust the air intake direction; two liquid storage tanks are symmetrically and fixedly installed on both sides of the bottom of the adjustment box, the inside of the liquid storage tank is connected to the bottom of the adjustment box through an exhaust pipe, and a micro air pump is installed on the exhaust pipe; a dust storage tank is installed in the middle of the bottom of the adjustment box, and a bottom frame is fixedly installed at the bottom of the adjustment box. The bottom frame includes a base, and two support plates are vertically fixedly arranged on the base. The support plates are fixedly connected to the bottom of the adjustment box, and the support plates are located between the dust storage tank and the corresponding liquid storage tank; a second chute is fixedly arranged on one side of the support plate close to the dust storage tank, and a limiting groove is opened on the side wall of the second chute;

[0009] The dust storage tank includes a dust storage tank body, a through hole is opened at the bottom of the adjustment box, and the dust storage tank body is inserted into the through hole at the bottom of the adjustment box; a bottom plate is fixedly arranged at the bottom of the dust storage tank body, and the bottom plate is slidably connected to the second chute; a limiting mechanism is fixedly connected to the bottom of the bottom plate, and the limiting mechanism is fixed to the limiting groove.

[0010] Further, the limiting mechanism includes four sliding rods, the four sliding rods are respectively fixedly connected to the four corners of the bottom of the bottom plate, and a limiting block is fixedly arranged at one end of the sliding rod; a spring and a slider are sleeved on the sliding rod, and both ends of the spring are respectively fixedly connected to the bottom plate and the slider;

[0011] The four sliders are jointly fixed through a bracket, a limiting screw is fixedly arranged on the slider, the limiting screw passes through the corresponding limiting groove and a limiting nut is screwed at the end of the limiting screw.

[0012] Further, the adjustment box includes an adjustment box body, a square pipe is fixedly connected to the top of the adjustment box body, and the intake fan is installed at the top end of the square pipe; two first ventilation openings are opened through the top of the adjustment box body, and the first ventilation openings are located inside the square pipe;

[0013] On the inner top wall of the adjusting box body, three sealing partition plates are fixedly arranged at equal intervals, and two first ventilation openings are respectively located between the corresponding adjacent sealing partition plates; a sealing partition groove is formed between the adjacent sealing partition plates and the inner wall of the adjusting box body; two ash storage tank openings are arranged at the top of the ash storage tank, and the ash storage tank openings are directly below the sealing partition grooves of the corresponding sealing partition plates.

[0014] Furthermore, the adjusting mechanism includes a filtering through groove and a switching plate; the filtering through groove is located between the sealing partition plate and the ash storage tank, and the top and bottom of the filtering through groove are open. Two filtering plates are fixedly connected at equal intervals inside the filtering through groove; both the left and right sides of the filtering through groove are closed plates, and the closed plates and the filtering plates divide the filtering through groove into three small through grooves with the same size;

[0015] The front and rear sides of the filtering through groove are attached to the inner wall of the adjusting box body; the groove sizes of the small through grooves, the ash storage tank openings, and the sealing partition grooves are the same.

[0016] Furthermore, sliding openings are formed on both sides of the square pipe, a sliding groove is fixedly arranged at the top of the adjusting box body, both ends of the sliding groove are communicated with the corresponding sliding openings, and the first ventilation opening is located in the sliding groove; the switching plate is slidably connected with the sliding groove, and a second ventilation opening is formed through the switching plate, and the diameter of the second ventilation opening is larger than that of the first ventilation opening.

[0017] Furthermore, an electric telescopic rod is fixedly installed on the side wall of the adjusting box body, the telescopic end of the electric telescopic rod passes through the adjusting box body and the end of the telescopic end is fixedly connected with one of the closed plates; a C-shaped connecting rod is arranged on one side of the adjusting box body away from the electric telescopic rod, one end of the C-shaped connecting rod passes through the side wall of the adjusting box body and the end is fixedly connected with the other closed plate, and the other end of the C-shaped connecting rod is fixedly connected with one end of the switching plate;

[0018] When the upper and lower ends of the two filtering plates are respectively abutted against the sealing partition plate and the ash storage tank, the second ventilation opening is communicated with the first ventilation opening above the small through groove located between the two filtering plates, the switching plate closes the other first ventilation opening, and the upper and lower ends of one of the closed plates are respectively abutted against the corresponding sealing partition plate and the ash storage tank;

[0019] When the filtering plate is directly below the corresponding first ventilation opening, the second ventilation opening is communicated with both first ventilation openings.

[0020] Further, an insertion interface is provided on one side wall of the square tube, and a plugging groove is fixedly provided on the inner wall of the square tube. The plugging groove communicates with the insertion interface; a filter screen groove is plugged into the insertion interface. The filter screen groove includes a filter groove body, and the filter groove body is slidably connected to the plugging groove. The bottom of the filter groove body is a filter screen. A closed panel is fixedly provided on one side of the filter groove body, and the closed panel is fixedly connected to the side wall of the square tube through a locking screw; a handle is fixedly provided on the closed panel.

[0021] Further, a movable ash groove is plugged on the ash storage tank opening.

[0022] Further, a plurality of exhaust ports are provided above the side wall of the liquid storage tank away from the ash storage tank. A liquid inlet pipe is communicated and provided on one side wall of the liquid storage tank. A liquid discharge pipe is communicated and provided at the bottom of the liquid storage tank. Valves are provided on both the liquid inlet pipe and the liquid discharge pipe.

[0023] Further, an installation plate extends outward from the top end of the square tube. A threaded port is provided on the installation plate, and the installation plate is fixedly connected to an intake air fan through bolts.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) In the present invention, the air containing harmful gases and dust is sucked into the adjustment box by the intake air fan, and the intake direction is adjusted by the adjustment mechanism, so that the dust is collected by the ash storage tank, and the harmful gases enter the liquid storage tank to be treated. While the harmful gases are being treated, the dust is fully filtered and collected, avoiding the problems of blockage and difficult cleaning caused by too much dust entering the liquid storage tank; specifically, when the upper and lower ends of the two filter plates are respectively in contact with the sealing partition plate and the ash storage tank, one of the closed plates seals one side, and the sealing partition plate, the ash storage tank and the filter through groove form two filter cavities. At this time, the second ventilation port communicates with the first ventilation port above the small through groove located between the two filter plates. The air containing harmful gases and dust enters between the two filter plates from the square tube, the second ventilation port and the first ventilation port, is filtered by one of the filter plates and discharged from the side not sealed by the closed plate, and the dust is filtered and intercepted and partially falls into the ash storage tank to be collected; the air containing harmful gases is pumped into the liquid storage tank by the micro air pump for treatment, thus avoiding the problems of blockage and difficult cleaning caused by too much dust entering the liquid storage tank.

[0026] (2) Through the cooperation of the adjustment mechanism and the adjustment box in the present invention, when a certain amount of dust adheres to the filter plate, it is likely to be blocked, thus affecting the filtering effect. At this time, the electric telescopic rod is used to control the movement of the filter through - slot, so that one of the closing plates is released from the closed state, and the other closing plate is closed. Moreover, the two filter plates are adjusted in position. At this time, the air containing harmful gases and dust will change the air - inlet direction, enter from the other first ventilation port and be filtered by the new filter plate. The air containing harmful gases after filtration is discharged from the side not closed by the closing plate and enters the new liquid - storage tank, thus quickly solving the problem of filter - plate blockage. And, after adjusting the air - inlet direction, the filter plate with adhered dust is under the middle partition plate and will be blown by the reverse air flow, and the dust adhered to the filter plate is blown into the ash - storage tank to realize the automatic cleaning of the filter plate. Therefore, it can not only quickly solve the problem of filter - plate blockage, but also automatically clean the filter plate, and at the same time ensure the continuous operation of the equipment without shutdown.

[0027] (3) First, through the preliminary filtration of the filter - net slot in the present invention, the air inhaled by the air - inlet fan is filtered, and the large - particle impurities in the air remain in the filter - net slot, so that the filter plate in the adjustment - box body mainly filters small - particle substances, thus reducing the risk of filter - plate blockage. And, through the structural design of the limit mechanism in the present invention, after the slider is fixed at a certain height by the limit screw and the limit nut, the bottom plate of the ash - storage tank abuts against the bottom of the adjustment box. At this time, the spring is compressed, and the ash - storage tank is installed. After the air - inlet fan operates for a period of time and the filter plate is blocked, the air pressure in the filter cavity formed by the partition plate, the ash - storage tank and the filter through - slot continuously increases, and finally acts on the ash - storage tank body to make the ash - storage tank body move downward to further compress the spring. After the ash - storage tank body moves downward, the filter cavity is released from the closed state and the internal pressure returns to normal, and the spring resets to make the ash - storage tank body move upward and reset. After resetting, since the filter plate is still in the blocked state, the air pressure in the filter cavity continuously increases again, making the ash - storage tank body move downward. In this way, the ash - storage tank body and the lower slide rod will continuously move up and down reciprocally, thus timely reminding the staff that the filter plate is blocked, and then being able to quickly and timely control the adjustment mechanism to adjust the air - inlet direction to achieve efficient anti - blockage. Description of the Drawings

[0028] Figure 1 is the overall structural schematic diagram of a harmful - gas treatment device for TBM tunneling that can efficiently prevent blockage according to the present invention;

[0029] Figure 2 is the dispersed structural schematic diagram of a harmful - gas treatment device for TBM tunneling that can efficiently prevent blockage according to the present invention;

[0030] Figure 3 is the structural schematic diagram of the adjustment box of a harmful - gas treatment device for TBM tunneling that can efficiently prevent blockage according to the present invention;

[0031] Figure 4Schematic diagram of the partial structure of the adjustment box of a harmful gas treatment device for TBM tunnel boring that can efficiently prevent blockage according to the present invention;

[0032] Figure 5 Schematic diagram of the overall cross-sectional structure of a harmful gas treatment device for TBM tunnel boring that can efficiently prevent blockage according to the present invention;

[0033] Figure 6 Schematic diagram of the multi-state cross-sectional structure of a harmful gas treatment device for TBM tunnel boring that can efficiently prevent blockage according to the present invention;

[0034] Figure 7 Schematic diagram of the liquid storage tank structure of a harmful gas treatment device for TBM tunnel boring that can efficiently prevent blockage according to the present invention;

[0035] Figure 8 Schematic diagram of the dispersed structure of the ash storage tank of a harmful gas treatment device for TBM tunnel boring that can efficiently prevent blockage according to the present invention;

[0036] Figure 9 Schematic diagram of the adjustment mechanism structure of a harmful gas treatment device for TBM tunnel boring that can efficiently prevent blockage according to the present invention;

[0037] Figure 10 Schematic diagram of the filter mesh tank structure of a harmful gas treatment device for TBM tunnel boring that can efficiently prevent blockage according to the present invention;

[0038] Figure 11 Schematic diagram of the ash storage tank structure of a harmful gas treatment device for TBM tunnel boring that can efficiently prevent blockage according to the present invention;

[0039] Figure 12 Schematic diagram of the partial structure of the ash storage tank of a harmful gas treatment device for TBM tunnel boring that can efficiently prevent blockage according to the present invention.

[0040] The reference numerals are as follows:

[0041] Adjustment box - 100; adjustment box body - 110; square pipe - 120; mounting plate - 121; sliding port - 130; exhaust pipe - 140; micro air pump - 141; insertion interface - 150; chute - 160; first ventilation port - 170; sealing partition - 180; insertion slot - 190; liquid storage tank - 200; liquid inlet pipe - 210; liquid discharge pipe - 220; exhaust port - 230; switching plate - 300; second ventilation port - 310; filter through slot - 400; filter plate - 410; closing plate - 420; electric telescopic rod - 430; C-shaped connecting rod - 440; chassis - 500; base - 510; support plate - 520; second chute - 530; limiting slot - 531; ash storage tank - 600; ash storage tank body - 610; bottom plate - 611; ash storage tank opening - 620; movable ash tank - 630; sliding rod - 640; limiting block - 641; spring - 650; slider - 660; limiting screw 661; limiting nut 670; bracket 680; intake fan - 700; filter mesh slot - 800; filter slot body - 810; filter mesh - 820; closing panel - 830; locking screw - 840; handle - 850. Detailed implementation mode

[0042] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further elaborates on the present invention in conjunction with embodiments. Of course, the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0043] Although the steps in the present invention are numbered, they are not used to limit the sequence of the steps. Unless the sequence of the steps is clearly stated or the execution of a certain step requires other steps as a basis, the relative sequence of the steps can be adjusted. It can be understood that the term "and / or" used herein involves and encompasses any and all possible combinations of one or more of the associated listed items.

[0044] Embodiment

[0045] As Figures 1 to 12As shown in the figure, a harmful gas treatment device for TBM tunnel boring that can efficiently prevent blockage includes an adjustment box 100. An intake fan 700 is connected and installed at the top of the adjustment box 100. An adjustment mechanism is installed inside the adjustment box 100, and the adjustment mechanism is used to adjust the intake direction. Two liquid storage tanks 200 are symmetrically and fixedly installed on both sides of the bottom of the adjustment box 100. The inside of the liquid storage tank 200 is communicated with the bottom of the adjustment box 100 through an exhaust pipe 140, and a micro air pump 141 is installed on the exhaust pipe 140. A dust storage tank 600 is installed in the middle of the bottom of the adjustment box 100. A bottom frame 500 is fixedly installed at the bottom of the adjustment box 100. The bottom frame 500 includes a base 510. Two support plates 520 are vertically and fixedly arranged on the base 510. The support plates 520 are fixedly connected to the bottom of the adjustment box 100, and the support plates 520 are located between the dust storage tank 600 and the corresponding liquid storage tank 200. A second chute 530 is fixedly arranged on the side of the support plate 520 close to the dust storage tank 600, and a limiting groove 531 is opened on the side wall of the second chute 530.

[0046] The dust storage tank 600 includes a dust storage tank body 610. A through hole is opened at the bottom of the adjustment box 100, and the dust storage tank body 610 is inserted into the through hole at the bottom of the adjustment box 100. A bottom plate 611 is fixedly arranged at the bottom of the dust storage tank body 610, and the bottom plate 611 is slidably connected to the second chute 530. A limiting mechanism is fixedly connected to the bottom of the bottom plate 611, and the limiting mechanism is fixed to the limiting groove 531. Through the limiting mechanism, the height adjustment of the dust storage tank 600 can be facilitated, so that the installation and disassembly of the dust storage tank 600 can be carried out efficiently, and at the same time, blockage can be efficiently prevented. This will be described in detail later.

[0047] In the present invention, the intake fan 700 sucks the air containing harmful gases and dust into the adjustment box 100, and the intake direction is adjusted through the adjustment mechanism, so that the dust is collected by the dust storage tank 600, and the harmful gases enter the liquid storage tank 200 to be treated. While the harmful gases are being treated, the dust is fully filtered and collected, avoiding the problems of blockage and difficult cleaning caused by too much dust entering the liquid storage tank 200. This will be further described in detail later.

[0048] It is worth noting that the treatment liquid in the liquid storage tank 200 of the present invention can be sodium hydroxide solution to treat harmful gases such as hydrogen sulfide generated during the TBM tunnel boring process. At the same time, different treatment liquids can also be selected according to the actual situation, and thus different harmful gases can be treated specifically. This will not be described in detail here.

[0049] Furthermore, the adjustment box 100 includes an adjustment box body 110. A square pipe 120 is fixedly connected to the top of the adjustment box body 110, and the intake fan 700 is installed at the top end of the square pipe 120. Two first ventilation openings 170 are formed through the top of the adjustment box body 110, and the first ventilation openings 170 are located within the square pipe 120. Air containing harmful gases and dust is inhaled from the outside into the square pipe 120 by the intake fan 700 and enters the interior of the adjustment box body 110 through the first ventilation openings 170.

[0050] Three sealing partitions 180 are fixedly arranged at equal intervals on the inner top wall of the adjustment box body 110, and the two first ventilation openings 170 are respectively located between the corresponding adjacent sealing partitions 180. A sealing slot is formed between the adjacent sealing partitions 180 and the inner wall of the adjustment box body 110. Two ash storage openings 620 are provided at the top of the ash storage tank 600, and the ash storage openings 620 are directly below the sealing slots of the corresponding sealing partitions 180.

[0051] Furthermore, the adjustment mechanism includes a filtering through slot 400 and a switching plate 300. The filtering through slot 400 is located between the sealing partition 180 and the ash storage tank 600, and the top and bottom of the filtering through slot 400 are open. Two filter plates 410 are fixedly connected at equal intervals inside the filtering through slot 400. The left and right sides of the filtering through slot 400 are both closed plates 420, and the closed plates 420 and the filter plates 410 divide the filtering through slot 400 into three small through slots of the same size.

[0052] The front and rear sides of the filtering through slot 400 are attached to the inner wall of the adjustment box body 110. The slot sizes of the small through slots, the ash storage openings 620, and the sealing slots are the same.

[0053] Furthermore, sliding openings 130 are formed on both sides of the square pipe 120. A sliding groove 160 is fixedly provided at the top of the adjustment box body 110, and the two ends of the sliding groove 160 communicate with the corresponding sliding openings 130. The first ventilation openings 170 are located within the sliding groove 160. The switching plate 300 is slidably connected to the sliding groove 160, and a second ventilation opening 310 is formed through the switching plate 300. The diameter of the second ventilation opening 310 is larger than that of the first ventilation opening 170. The switching plate 300 slides on the sliding groove 160 to selectively close one of the first ventilation openings 170.

[0054] Further, an electric telescopic rod 430 is fixedly installed on the side wall of the adjustment box body 110. The telescopic end of the electric telescopic rod 430 passes through the adjustment box body 110 and the end of the telescopic end is fixedly connected to one of the closing plates 420. On the side of the adjustment box body 110 away from the electric telescopic rod 430, there is a C-shaped connecting rod 440. One end of the C-shaped connecting rod 440 passes through the side wall of the adjustment box body 110 and the end is fixedly connected to the other closing plate 420. The other end of the C-shaped connecting rod 440 is fixedly connected to one end of the switching plate 300. The electric telescopic rod 430 is used to control the movement of the filtering through slot 400. Under the connection of the C-shaped connecting rod 440, the switching plate 300 moves together with the filtering through slot 400.

[0055] It should be noted that the electric telescopic rod 430, the intake air blower 700 and the micro air pump 141 of the present invention are all controlled by an external power supply, which will not be elaborated here.

[0056] When the upper and lower ends of the two filter plates 410 are respectively abutted against the partition plate 180 and the ash storage tank 600, the second ventilation port 310 is communicated with the first ventilation port 170 above the small through slot between the two filter plates 410. The switching plate 300 closes the other first ventilation port 170, and the upper and lower ends of one of the closing plates 420 are respectively abutted against the corresponding partition plate 180 and the ash storage tank 600.

[0057] Specifically, as Figure 5 shown, when the upper and lower ends of the two filter plates 410 are respectively abutted against the partition plate 180 and the ash storage tank 600, one of the closing plates 420 closes one side. The partition plate 180, the ash storage tank 600 and the filtering through slot 400 form two filtering chambers. At this time, the second ventilation port 310 is communicated with the first ventilation port 170 above the small through slot between the two filter plates 410. The air containing harmful gases and dust enters between the two filter plates 410 from the square pipe 120, the second ventilation port 310 and the first ventilation port 170, and is filtered by one of the filter plates 410 and discharged from the side not closed by the closing plate 420. Part of the dust intercepted by the filtration falls into the ash storage tank 600 and is collected. The air containing harmful gases is pumped into the interior of the liquid storage tank 200 by the micro air pump 141 for treatment, thereby avoiding the problems of excessive dust entering the liquid storage tank 200 resulting in blockage and difficulty in cleaning.

[0058] As Figure 6 shown in state 2 of, when the filter plate 410 is directly below the corresponding first ventilation port 170, the second ventilation port 310 is communicated with both first ventilation ports 170.

[0059] As Figure 6As shown in State 1 in , through the cooperation of the adjustment mechanism and the adjustment box 100, when a certain amount of dust adheres to the filter plate 410, it is likely to be blocked, thus affecting the filtering effect. At this time, the electric telescopic rod 430 is used to control the movement of the filter through slot 400, so that one of the closing plates 420 is released from the closed state, and the other closing plate 420 is closed. Moreover, the two filter plates 410 are adjusted in position. At this time, the air containing harmful gases and dust will change the air intake direction, enter from another first ventilation port 170 and be filtered by the new filter plate 410. The air containing harmful gases after filtration is discharged from the side not closed by the closing plate 420 and enters the new liquid storage tank 200, thus quickly solving the problem of blockage of the filter plate 410. And, after adjusting the air intake direction, the filter plate 410 with adhered dust is located below the middle partition plate 180 and will be blown by the reverse air flow, and the dust adhered to the filter plate 410 is blown into the dust storage tank 600 to automatically clean the filter plate 410. Therefore, it can not only quickly solve the problem of blockage of the filter plate 410, but also automatically clean the filter plate 410, and at the same time ensure that the equipment operates in a cycle without stopping.

[0060] Further, an insertion interface 150 is provided on one side wall of the square tube 120, and a plug-in slot 190 is fixedly provided on the inner wall of the square tube 120. The plug-in slot 190 communicates with the insertion interface 150; a filter net slot 800 is inserted into the insertion interface 150. The filter net slot 800 includes a filter slot body 810 which is slidably connected with the plug-in slot 190. The bottom of the filter slot body 810 is a filter net 820. One side of the filter slot body 810 is fixedly provided with a closing panel 830, and the closing panel 830 is fixedly connected with the side wall of the square tube 120 through a locking screw 840; a handle 850 is fixedly provided on the closing panel 830. The filter net slot 800 can be installed and fixed to the square tube 120 or can be disassembled for dust cleaning.

[0061] First, through the preliminary filtration of the filter net slot 800, the air inhaled by the intake fan 700 is filtered, and the large particle impurities in the air remain in the filter net slot 800, so that the filter plate 410 in the adjustment box body 110 mainly filters small particle substances, thereby reducing the risk of blockage of the filter plate 410.

[0062] Further, the limiting mechanism includes four sliding rods 640, and the four sliding rods 640 are respectively fixedly connected to the four corners of the bottom of the bottom plate 611. One end of the sliding rod 640 is fixedly provided with a limiting block 641; a spring 650 and a slider 660 are sleeved on the sliding rod 640, and the two ends of the spring 650 are respectively fixedly connected to the bottom plate 611 and the slider 660;

[0063] The four sliders 660 are fixedly connected together by a bracket 680. A limit screw 661 is fixedly arranged on the slider 660. The limit screw 661 passes through the corresponding limit groove 531 and a limit nut 670 is screwed to the end of the limit screw 661.

[0064] Through the structural design of the limiting mechanism of the present invention, after the slider 660 is fixed at a certain height by the limit screw 661 and the limit nut 670, the bottom plate 611 of the ash storage tank 600 abuts against the bottom of the adjustment box 100. At this time, the spring 650 is compressed and the installation of the ash storage tank 600 is completed. After the intake fan 700 operates for a period of time, when the filter plate 410 is blocked, the air pressure in the filter cavity formed by the sealing partition plate 180, the ash storage tank 600 and the filter through groove 400 continuously increases. Eventually, it acts on the ash storage tank body 610 to make the ash storage tank body 610 move downward to further compress the spring 650. After the ash storage tank body 610 moves downward, the filter cavity is released from the sealed state and the internal pressure returns to normal. The spring 650 resets to make the ash storage tank body 610 move upward and reset. After resetting, since the filter plate 410 is still in a blocked state, the air pressure in the filter cavity continuously increases, causing the ash storage tank body 610 to move downward. In this way, the ash storage tank body 610 and the lower slide rod will continuously move up and down reciprocally, so as to timely remind the staff that the filter plate 410 is blocked, and then the adjustment mechanism can be quickly and timely controlled to adjust the intake air direction, thereby efficiently preventing blockage.

[0065] Furthermore, a movable ash tank 630 is inserted into the ash storage tank opening 620. The movable ash tank 630 is convenient for disassembly and ash discharging operation.

[0066] As Figure 6 shown in state 2 in, when it is necessary to disassemble the ash storage tank 600 for ash discharging, loosen the limit nut 670 and the bottom plate 611 can slide down along the second chute 530. Through this structural design, it can also assist in deeply cleaning the filter plate 410. When the dust adhered to the filter plate 410 cannot be automatically cleaned after a long use time, disassemble and slide down the ash storage tank 600, and then through the control of the electric telescopic rod 430, move the filter plate 410 to directly below the corresponding first ventilation opening 170. At this time, the second ventilation opening 310 is communicated with both first ventilation openings 170. By operating the intake fan 700, the two filter plates 410 and the inside of the adjustment box body 110 can be blown simultaneously, so as to achieve deep cleaning. While cleaning the dust, it is convenient for the ash discharging operation of the ash storage tank 600.

[0067] Furthermore, a plurality of exhaust ports 230 are provided above the side wall of the liquid storage tank 200 away from the ash storage tank 600. A liquid inlet pipe 210 is communicatively connected to one side wall of the liquid storage tank 200, and a liquid discharge pipe 220 is communicatively connected to the bottom of the liquid storage tank 200. Valves are provided on both the liquid inlet pipe 210 and the liquid discharge pipe 220. The processed gas is discharged from the exhaust port. The liquid discharge pipe 220 can discharge the ineffective treatment liquid, and the liquid inlet pipe 210 can add new treatment liquid.

[0068] It should be noted that through the cooperation of the adjustment mechanism and the adjustment box 100, the present invention can not only quickly solve the problem of blockage of the filter plate 410 and automatically clean the filter plate 410, but also automatically switch the liquid storage tank 200, so that the old liquid storage tank 200 can replace the treatment liquid when it is idle, comprehensively ensuring that the equipment operates in a cycle without stopping.

[0069] Furthermore, an installation plate 121 extends outward from the top end of the square pipe 120. A threaded hole is provided on the installation plate 121, and the installation plate 121 is fixedly connected to the intake air fan 700 through bolts. This connection method facilitates the installation and disassembly of the intake air fan 700.

[0070] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the present invention, several improvements and transformations can be made, and these all belong to the protection scope of the present invention.

Claims

1. A harmful gas treatment device for TBM tunneling that can effectively prevent blockage, characterized in that: The invention comprises a regulating box (100), wherein the top of the regulating box (100) is connected to an air intake fan (700); an adjusting mechanism is installed inside the regulating box (100), and the adjusting mechanism is used to adjust the air intake direction; two liquid storage tanks (200) are symmetrically fixedly installed on both sides of the bottom of the regulating box (100), and the interior of the liquid storage tank (200) is connected to the bottom of the regulating box (100) through an exhaust pipe (140), and a micro air pump (141) is installed on the exhaust pipe (140); an ash storage tank (600) is installed in the middle of the bottom of the regulating box (100), and the A base frame (500) is fixedly installed at the bottom of the regulating box (100), and the base frame (500) includes a base (510). Two support plates (520) are vertically fixedly arranged on the base (510), and the support plates (520) are fixedly connected to the bottom of the regulating box (100), and the support plates (520) are located between the ash storage tank (600) and the corresponding liquid storage tank (200); a second chute (530) is fixedly arranged on one side of the support plate (520) close to the ash storage tank (600), and a limiting groove (531) is provided on the side wall of the second chute (530); The ash storage tank (600) comprises an ash storage tank body (610); a through opening is provided at the bottom of the regulating box (100); the ash storage tank body (610) is plugged into the through opening at the bottom of the regulating box (100); a bottom plate (611) is fixedly provided at the bottom of the ash storage tank body (610); the bottom plate (611) is slidably connected to the second sliding groove (530); a limiting mechanism is fixedly connected to the bottom of the bottom plate (611); the limiting mechanism is fixed to the limiting groove (531).

2. According to claim 1, a harmful gas treatment device for TBM tunneling that can effectively prevent blockage is characterized in that: The limiting mechanism comprises four sliding rods (640), the four sliding rods (640) are respectively fixedly connected to the bottom of the bottom plate (611) around the periphery, and a limiting block (641) is fixedly provided at one end of the sliding rod (640); a spring (650) and a sliding block (660) are sleeved on the sliding rod (640), and the two ends of the spring (650) are respectively fixedly connected to the bottom plate (611) and the sliding block (660); The four sliders (660) are fixed together by a bracket (680), and a limiting screw (661) is fixedly provided on the slider (660). The limiting screw (661) passes through the corresponding limiting groove (531), and the end of the limiting screw (661) is screwed to the limiting nut (670).

3. A harmful gas treatment device for TBM tunneling that can effectively prevent blockage according to claim 1, characterized in that: The regulating box (100) comprises a regulating box body (110), the top of the regulating box body (110) is fixedly connected to a square tube (120), and the air intake fan (700) is installed at the top of the square tube (120); two first vents (170) are provided through the top of the regulating box body (110), and the first vents (170) are located in the square tube (120); Three baffle plates (180) are fixedly provided at equal distances on the inner top wall of the regulating box body (110); two first vents (170) are respectively located between corresponding adjacent baffle plates (180); a baffle slot is formed between adjacent baffle plates (180) and the inner wall of the regulating box body (110); two ash storage slots (620) are provided on the top of the ash storage tank (600), and the ash storage slots (620) are located directly below the baffle slots of the corresponding baffle plates (180).

4. According to claim 3, a harmful gas treatment device for TBM tunneling capable of efficiently preventing blockage is characterized in that: The regulating mechanism comprises a filter slot (400) and a switching plate (300); the filter slot (400) is located between the sealing plate (180) and the ash storage tank (600), and the top and bottom of the filter slot (400) are open, and two filter plates (410) are fixedly connected at equal distances inside the filter slot (400); the left and right sides of the filter slot (400) are both closed plates (420), and the closed plates (420) and the filter plates (410) divide the filter slot (400) into three small slots of the same size; The front and rear sides of the filtering slot (400) are in contact with the inner wall of the regulating box body (110); the slot sizes of the small slot, the ash storage slot (620), and the sealing slot are the same.

5. A harmful gas treatment device for TBM tunneling capable of efficiently preventing blockage according to claim 4, characterized in that: Slide openings (130) are provided on both sides of the square tube (120); a slide groove (160) is fixedly provided on the top of the regulating box body (110); both ends of the slide groove (160) are connected to the corresponding slide openings (130); the first vent (170) is located in the slide groove (160); the switching plate (300) is slidably connected to the slide groove (160); a second vent (310) is provided through the switching plate (300); the diameter of the second vent (310) is larger than the diameter of the first vent (170).

6. The harmful gas treatment device for TBM tunneling capable of efficiently preventing blockage according to claim 5 is characterized in that: An electric telescopic rod (430) is fixedly mounted on the side wall of the regulating box body (110), the telescopic end of the electric telescopic rod (430) passes through the regulating box body (110) and the end of the telescopic end is fixedly connected to one of the closed plates (420); a C-shaped connecting rod (440) is provided on the side of the regulating box body (110) away from the electric telescopic rod (430), one end of the C-shaped connecting rod (440) passes through the side wall of the regulating box body (110) and the end is fixedly connected to the other closed plate (420), and the other end of the C-shaped connecting rod (440) is fixedly connected to one end of the switching plate (300); When the upper and lower ends of the two filter plates (410) are respectively in contact with the partition plate (180) and the ash storage tank (600), the second vent (310) is connected to the first vent (170) located above the small through groove between the two filter plates (410), the switching plate (300) closes the other first vent (170), and the upper and lower ends of one of the closing plates (420) are respectively in contact with the corresponding partition plate (180) and the ash storage tank (600); When the filter plate (410) is located directly below the corresponding first vent (170), the second vent (310) is in communication with both first vents (170).

7. The harmful gas treatment device for TBM tunneling capable of efficiently preventing blockage according to claim 3 is characterized in that: A plug-in port (150) is provided on one side wall of the square tube (120); a plug-in slot (190) is fixedly provided on the inner wall of the square tube (120); the plug-in slot (190) is communicated with the plug-in port (150); a filter screen slot (800) is plugged into the plug-in port (150); the filter screen slot (800) comprises a filter screen body (810); the filter screen body (810) is slidably connected to the plug-in slot (190); a filter screen (820) is provided at the bottom of the filter screen body (810); a closed panel (830) is fixedly provided on one side of the filter screen body (810); the closed panel (830) is fixedly connected to the side wall of the square tube (120) via a locking screw (840); a handle (850) is fixedly provided on the closed panel (830).

8. The harmful gas treatment device for TBM tunneling capable of efficiently preventing blockage according to claim 3 is characterized in that: The ash storage trough opening (620) is plugged with a movable ash trough (630).

9. The harmful gas treatment device for TBM tunneling capable of efficiently preventing blockage according to claim 1 is characterized in that: A plurality of exhaust ports (230) are provided on the upper side wall of the liquid storage tank (200) away from the ash storage tank (600); a liquid inlet pipe (210) is provided in communication with one side wall of the liquid storage tank (200); a liquid discharge pipe (220) is provided in communication with the bottom of the liquid storage tank (200); and valves are provided on both the liquid inlet pipe (210) and the liquid discharge pipe (220).

10. The harmful gas treatment device for TBM tunneling capable of efficiently preventing blockage according to claim 3, characterized in that: A mounting plate (121) is provided on the top end of the square tube (120) and extends outward. A threaded opening is provided on the mounting plate (121). The mounting plate (121) is fixedly connected to the air intake fan (700) by means of bolts.

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