A harmful gas treatment device for TBM tunneling with high efficiency anti-blocking

Abstract

The present application belongs to the technical field of tunnel construction, and particularly relates to a harmful gas treatment device for TBM tunneling with efficient anti-blocking function. The device comprises an adjusting box, an air inlet fan is installed on the top of the adjusting box, an adjusting mechanism is installed in the adjusting box for adjusting the air inlet direction, two liquid storage tanks are fixedly installed on the bottom of the adjusting box in a symmetrical manner, the inside of the liquid storage tank is communicated with the bottom of the adjusting box through an exhaust pipe, a micro air pump is installed on the exhaust pipe, and a dust storage tank is installed in the middle of the bottom of the adjusting box. While the harmful gas is treated, the dust is fully filtered and collected, so that the problem of blockage of the liquid storage tank caused by excessive dust and difficult cleaning is avoided. The present application timely reminds the staff of the filter plate blockage, so that the air inlet direction can be quickly and timely controlled by adjusting the adjusting mechanism, and efficient anti-blocking is realized.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of tunnel construction, and particularly relates to a harmful gas treatment device for TBM tunneling with high efficiency of preventing blockage. BACKGROUND

[0002] TBM tunneling refers to a technology of tunneling using a tunnel boring machine. The TBM is an automatic mechanical equipment specially designed for tunneling underground, which can work under different soil and rock conditions. The TBM cuts the soil through a rotating cutter head and transports and discharges the excavated earth, while providing support for the construction of the tunnel.

[0003] In the process of TBM tunneling, some harmful gases may be generated. In the process of tunneling, the soil and rock passed through may release some harmful gases (such as radon, hydrogen sulfide, etc.), and dust and other particulate impurities may also be generated, which need to be treated in an emergency at any time.

[0004] A harmful gas purification device in tunnel construction is disclosed in Chinese Patent No. 202323559831.6, which comprises a purification box body fixedly arranged on a walking device; the purification box body has completely independent upper and lower spaces; a gas conveying pipeline, a first gas pump, a filter screen assembly, and an adsorption assembly are sequentially arranged in the upper space; one end of the gas conveying pipeline extends out of the top of the purification box body; the gas inlet end of the first gas pump is in communication with the gas conveying pipeline, and the gas outlet end thereof faces the filter screen assembly; a purification assembly and a second gas pump are arranged in the lower space; the purification assembly comprises a solution tank and a flow guide pipe, one end of the flow guide pipe extends into the solution tank, and the other end extends into the upper space; an exhaust hole is formed in the side wall of the purification box body, and the gas outlet end of the second gas pump is in communication with the exhaust hole. The patent can timely and targetedly treat harmful gases that occur locally in the tunnel, effectively improving the treatment efficiency of harmful gases.

[0005] When dust and harmful gases are treated at the same time, if a filter structure with good filtering performance is used, the filter structure is easy to be blocked, resulting in the device being unable to perform subsequent harmful gas treatment; if a filter structure with a larger filter hole is used, the ventilation effect can be ensured, but part of the dust will enter the treatment liquid, resulting in too much dust accumulated in the box containing the treatment liquid, causing the box to be blocked and difficult to clean; and when the filter structure is used for treatment, it is often difficult to timely discover that the filter structure is blocked, so that the equipment is still working after the filter structure is blocked, and finally the filtering effect of the equipment is poor. SUMMARY

[0006] In order to solve the problems in the prior art, the harmful gas treatment device for TBM tunneling with efficient anti-blocking is provided, which can filter and collect dust, avoid the problem of blockage caused by too much dust entering the liquid storage tank and difficult to clean, quickly solve the problem of filter plate blockage, automatically clean the filter plate, ensure the circulation of the equipment without shutdown, timely remind the staff of the filter plate blockage, quickly and timely control the adjusting mechanism to adjust the air inlet direction, and realize efficient anti-blocking.

[0007] In order to achieve the above purpose, the technical scheme is adopted as follows:

[0008] The harmful gas treatment device for TBM tunneling with efficient anti-blocking comprises an adjusting tank, an air inlet fan is communicated and installed at the top of the adjusting tank, an adjusting mechanism is installed in the adjusting tank, the adjusting mechanism is used for adjusting the air inlet direction, two liquid storage tanks are fixedly installed on the bottom of the adjusting tank in a symmetrical manner, the inside of the liquid storage tank is communicated with the bottom of the adjusting tank through an exhaust pipe, a micro air pump is installed on the exhaust pipe, a dust storage groove is installed in the middle of the bottom of the adjusting tank, a bottom frame is fixedly installed on the bottom of the adjusting tank, the bottom frame comprises a base, two support plates are vertically and fixedly arranged on the base, the support plates are fixedly connected with the bottom of the adjusting tank, and the support plates are located between the dust storage groove and the corresponding liquid storage tank, a second sliding groove is fixedly arranged on the side of the support plate close to the dust storage groove, and a limiting groove is formed in the side wall of the second sliding groove.

[0009] The dust storage groove comprises a dust storage groove body, a through port is formed in the bottom of the adjusting tank, and the dust storage groove body is inserted into the through port of the bottom of the adjusting tank, a bottom plate is fixedly arranged at the bottom of the dust storage groove body, the bottom plate is slidingly connected with the second sliding groove, a limiting mechanism is fixedly connected with the bottom of the bottom plate, and the limiting mechanism is fixed with the limiting groove.

[0010] Further, the limiting mechanism comprises four sliding rods, the four sliding rods are fixedly connected with the periphery of the bottom of the bottom plate respectively, and a limiting block is fixedly arranged at one end of the sliding rod.

[0011] The four sliding blocks are fixedly connected through a support, a limiting screw rod is fixedly arranged on the sliding block, the limiting screw rod penetrates through the corresponding limiting groove, and the end of the limiting screw rod is screwed with a limiting nut.

[0012] Further, the adjusting tank comprises an adjusting tank body, a square tube is fixedly connected with the top of the adjusting tank body, and the air inlet fan is installed at the top end of the square tube; two first air vents are formed in the top of the adjusting tank body in a penetrating manner, and the first air vents are located in the square tube.

[0013] Three partition plates are fixed equidistantly on the inner top wall of the adjusting box body, and two first air vents are respectively located between the corresponding adjacent partition plates; the adjacent partition plates and the inner wall of the adjusting box body form a partition slot; the top of the ash storage groove is provided with two ash storage groove openings, and the ash storage groove openings are located directly below the partition slot corresponding to the partition plate.

[0014] Further, the adjusting mechanism comprises a filter slot and a switching plate; the filter slot is located between the partition plate and the ash storage groove, and the top and bottom of the filter slot are open, the inside of the filter slot is fixedly connected with two filter plates equidistantly; the left and right sides of the filter slot are both closed plates, and the filter slot is divided into three small slots of the same size by the closed plates and the filter plates;

[0015] The front and back sides of the filter slot are attached to the inner wall of the adjusting box body; the slot sizes of the small slot, the ash storage groove opening and the partition slot are the same.

[0016] Further, the two sides of the square tube are provided with sliding openings, the top of the adjusting box body is fixedly provided with a sliding groove, the two ends of the sliding groove are communicated with the corresponding sliding openings, and the first air vent is located in the sliding groove; the switching plate is slidingly connected with the sliding groove, a second air vent is penetratingly provided on the switching plate, and the caliber of the second air vent is larger than that of the first air vent.

[0017] Further, an electric telescopic rod is fixedly installed on the side wall of the adjusting box body, the telescopic end of the electric telescopic rod penetrates through the adjusting box body, and the end of the telescopic end is fixedly connected with one of the closed plates; the side of the adjusting box body away from the electric telescopic rod is provided with a C-shaped connecting rod, one end of the C-shaped connecting rod penetrates 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 filter plates are respectively abutted with the partition plate and the ash storage groove, the second air vent is communicated with the first air vent above the small slot between the two filter plates, the switching plate closes the other first air vent, and the upper and lower ends of one of the closed plates are respectively abutted with the corresponding partition plate and the ash storage groove.

[0019] When the filter plate is located directly below the corresponding first air vent, the second air vent is communicated with the two first air vents.

[0020] Further, a side wall of the square tube is provided with a plug-in port, an inner wall of the square tube is fixedly provided with a plug-in slot, and the plug-in slot is in communication with the plug-in port; the plug-in port is plugged with a filter screen slot, the filter screen slot comprises a filter screen body, the filter screen body is in sliding connection with the plug-in slot, a bottom of the filter screen body is a filter screen, one side of the filter screen body is fixedly provided with a closing panel, and the closing panel is fixedly connected with the side wall of the square tube through locking screws; and a handle is fixedly arranged on the closing panel.

[0021] Further, a moving ash groove is plugged on the ash storage groove.

[0022] Further, a plurality of exhaust ports are formed above a side wall of the ash storage groove away from the liquid storage tank, an inlet pipe is in communication with a side wall of the liquid storage tank, and a liquid outlet pipe is in communication with a bottom of the liquid storage tank, and valves are arranged on the inlet pipe and the liquid outlet pipe.

[0023] Further, an installation plate is outwardly extended at a top end of the square tube, a threaded port is formed in the installation plate, and the installation plate is fixedly connected with the air inlet fan through bolts.

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

[0025] (1) The air containing harmful gas and dust is sucked into the adjusting box through the air inlet fan, the air inlet direction is adjusted through the adjusting mechanism, so that the dust is collected by the ash storage groove and the harmful gas enters the liquid storage tank for treatment, while the harmful gas is treated, the dust is fully filtered and collected, and the problem of blockage and difficult cleaning of the liquid storage tank caused by too much dust is avoided; specifically, when the upper and lower ends of the two filter plates are respectively abutted with the partition plate and the ash storage groove, one of the two filter plates is closed, the partition plate, the ash storage groove and the filter channel form two filter cavities, at this time, the second air port is in communication with the first air port above the small channel between the two filter plates, the air containing harmful gas and dust enters the space between the two filter plates from the square tube, the second air port and the first air port, is filtered by one of the filter plates and discharged from the side not closed by the unsealed plate, and the dust is partially collected in the ash storage groove after being filtered and intercepted; the air containing harmful gas is sucked into the liquid storage tank by the micro air pump and treated, so that the problem of blockage and difficult cleaning of the liquid storage tank caused by too much dust is avoided.

[0026] (2) The present application adjusts the cooperation between the adjusting mechanism and the adjusting box, when a certain amount of dust adheres to the filter plate and causes blockage, thereby affecting the filtering effect, at this time, the filter slot is controlled to move by the electric telescopic rod, so that one of the closing plates is unclosed, the other closing plate is closed, and the positions of the two filter plates are adjusted, at this time, the air containing harmful gases and dust changes the air inlet direction, enters from the other first air inlet, and is filtered by the new filter plate, and the air containing harmful gases after filtering is discharged from the side not closed by the unclosed closing plate and enters the new liquid storage tank, thereby quickly solving the problem of filter plate blockage, and after adjusting the air inlet direction, the filter plate adhering to the dust is below the middle partition plate and is blown by the air in the opposite direction, so that the dust adhering to the filter plate is blown into the dust storage groove to realize automatic cleaning of the filter plate, thereby quickly solving the problem of filter plate blockage, automatically cleaning the filter plate, and ensuring that the equipment can work continuously without stopping.

[0027] (3) The present application first filters the air sucked by the air inlet fan through the preliminary filtering of the filter mesh slot, so that the large particle impurities in the air are retained in the filter mesh slot, and the filter plate in the adjusting box body mainly filters small particle substances, thereby reducing the risk of filter plate blockage; and the present application is designed by the structure of the limiting mechanism, when the sliding block is fixed at a certain height by the limiting screw and the limiting nut, the bottom plate of the dust storage groove abuts against the bottom of the adjusting box, at this time the spring is compressed, and the installation of the dust storage groove is completed; after the air inlet fan runs for a period of time, when the filter plate is blocked, the air pressure in the filter cavity formed by the partition plate, the dust storage groove and the filter slot continues to increase, and finally acts on the dust storage groove body to make the dust storage groove body move downward to further compress the spring; after the dust storage groove body moves downward, the internal pressure of the filter cavity in the unsealed state returns to normal, and the spring resets to make the dust storage groove body move upward to reset, and after resetting, since the filter plate is still in the blocked state, the air pressure in the filter cavity continues to increase, so that the dust storage groove body moves downward; the dust storage groove body and the sliding rod below it will keep reciprocating up and down, thereby timely reminding the staff of the filter plate blockage, so that the adjusting mechanism can quickly and timely adjust the air inlet direction to achieve efficient anti-blocking. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a whole structure schematic diagram of the harmful gas treatment device for TBM tunneling of the present application which can efficiently prevent blockage;

[0029] Figure 2 It is a dispersion structure schematic diagram of the harmful gas treatment device for TBM tunneling of the present application which can efficiently prevent blockage;

[0030] Figure 3 It is an adjusting box structure schematic diagram of the harmful gas treatment device for TBM tunneling of the present application which can efficiently prevent blockage;

[0031] Figure 4A regulating box part structure diagram of a harmful gas treatment device for TBM tunneling with high efficient anti-blocking function according to the present application;

[0032] Figure 5 A whole section structure diagram of a harmful gas treatment device for TBM tunneling with high efficient anti-blocking function according to the present application;

[0033] Figure 6 A multi-state section structure diagram of a harmful gas treatment device for TBM tunneling with high efficient anti-blocking function according to the present application;

[0034] Figure 7 A liquid storage tank structure diagram of a harmful gas treatment device for TBM tunneling with high efficient anti-blocking function according to the present application;

[0035] Figure 8 A ash storage tank dispersion structure diagram of a harmful gas treatment device for TBM tunneling with high efficient anti-blocking function according to the present application;

[0036] Figure 9 A regulating mechanism structure diagram of a harmful gas treatment device for TBM tunneling with high efficient anti-blocking function according to the present application;

[0037] Figure 10 A filter screen groove structure diagram of a harmful gas treatment device for TBM tunneling with high efficient anti-blocking function according to the present application;

[0038] Figure 11 A ash storage tank structure diagram of a harmful gas treatment device for TBM tunneling with high efficient anti-blocking function according to the present application;

[0039] Figure 12 A ash storage tank local structure diagram of a harmful gas treatment device for TBM tunneling with high efficient anti-blocking function according to the present application.

[0040] The reference signs are as follows:

[0041] Adjusting box-100, adjusting box body-110, square tube-120, mounting plate-121, sliding port-130, exhaust pipe-140, micro air pump-141, plug interface-150, sliding groove-160, first air port-170, sealing plate-180, plug groove-190, liquid storage tank-200, liquid inlet pipe-210, liquid outlet pipe-220, exhaust port-230, switching plate-300, second air port-310, filter through slot-400, filter plate-410, closure plate-420, electric telescopic rod-430, C-shaped connecting rod-440, chassis-500, base-510, support plate-520, second sliding groove-530, limiting groove-531, ash storage tank-600, ash storage tank body-610, bottom plate-611, ash storage tank port-620, movable ash tank-630, sliding rod-640, limiting block-641, spring-650, sliding block-660, limiting screw 661, limiting nut 670, support 680, air inlet fan-700, filter mesh slot-800, filter slot body-810, filter mesh-820, closure panel-830, locking screw-840, handle-850. DETAILED DESCRIPTION

[0042] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the embodiments. Of course, the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0043] The steps in the present application are arranged with labels, but are not used to limit the sequence of the steps, unless the sequence of the steps is explicitly described or the execution of a certain step needs other steps as a basis, otherwise the relative sequence of the steps can be adjusted. It can be understood that the term "and / or" used herein relates to and covers any and all possible combinations of one or more of the associated listed items.

[0044] EMBODIMENT

[0045] As Figures 1-12As shown, a harmful gas treatment device for TBM tunneling with efficient anti-blocking, comprising an adjusting box 100, an air inlet fan 700 is installed in communication with the top of the adjusting box 100; an adjusting mechanism is installed in the inside of the adjusting box 100, and the adjusting mechanism is used for adjusting the air inlet direction; two liquid storage tanks 200 are fixedly installed on the bottom of the adjusting box 100 in a symmetrical manner on both sides, the inside of the liquid storage tank 200 is communicated with the bottom of the adjusting 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 adjusting box 100, a chassis 500 is fixedly installed on the bottom of the adjusting box 100, the chassis 500 comprises a base 510, two support plates 520 are vertically fixedly arranged on the base 510, the support plate 520 is fixedly connected with the bottom of the adjusting box 100, and the support plate 520 is located between the dust storage tank 600 and the corresponding liquid storage tank 200; a second sliding groove 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 formed in the side wall of the second sliding groove 530;

[0046] The dust storage tank 600 comprises a dust storage tank body 610, a through hole is formed in the bottom of the adjusting box 100, and the dust storage tank body 610 is inserted into the through hole in the bottom of the adjusting box 100; a bottom plate 611 is fixedly arranged on the bottom of the dust storage tank body 610, and the bottom plate 611 is slidingly connected with the second sliding groove 530; a limiting mechanism is fixedly connected to the bottom of the bottom plate 611, and the limiting mechanism is fixed with the limiting groove 531. Through the limiting mechanism, the height of the dust storage tank 600 can be conveniently adjusted, so that the dust storage tank 600 can be efficiently installed and removed, and efficient anti-blocking can be realized, which will be described in detail later.

[0047] The air containing harmful gas and dust is sucked into the adjusting box 100 by the air inlet fan 700, the air inlet direction is adjusted by the adjusting mechanism, so that the dust is collected by the dust storage tank 600, and the harmful gas enters the liquid storage tank 200 for treatment. While realizing the treatment of harmful gas, the dust is fully filtered and collected, avoiding the problem of blockage and difficult cleaning caused by too much dust entering the liquid storage tank 200, which will be described in detail later.

[0048] It is worth noting that the treatment liquid in the liquid storage tank 200 can be sodium hydroxide solution, which can treat hydrogen sulfide and other harmful gases generated during TBM tunneling, and different treatment liquids can be selected according to actual conditions, so that different harmful gases can be treated specifically, which will not be described in detail here.

[0049] Further, the adjusting box 100 comprises an adjusting box body 110, a square tube 120 is fixedly connected to the top of the adjusting box body 110, and the air inlet fan 700 is installed at the top end of the square tube 120; two first air vents 170 are formed through the top of the adjusting box body 110, and the first air vents 170 are located in the square tube 120; the air containing harmful gases and dust is sucked into the square tube 120 from the outside by the air inlet fan 700 and enters the inside of the adjusting box body 110 from the first air vents 170;

[0050] Three partition plates 180 are fixedly arranged at equal distances on the inner top wall of the adjusting box body 110, and two first air vents 170 are respectively located between the corresponding adjacent partition plates 180; the adjacent partition plates 180 and the inner wall of the adjusting box body 110 form a partition groove; the top of the ash storage groove 600 is provided with two ash storage groove openings 620, and the ash storage groove openings 620 are located directly below the partition groove of the corresponding partition plate 180.

[0051] Further, the adjusting mechanism comprises a filter channel 400 and a switching plate 300; the filter channel 400 is located between the partition plate 180 and the ash storage groove 600, and the top and bottom of the filter channel 400 are open, and two filter plates 410 are fixedly connected at equal distances in the inside of the filter channel 400; the left and right sides of the filter channel 400 are both closed plates 420, and the filter channel 400 is divided into three small channels of the same size by the filter plates 410 and the closed plates 420.

[0052] The front and rear sides of the filter channel 400 are attached to the inner wall of the adjusting box body 110; the sizes of the small channels, the ash storage groove openings 620 and the partition grooves are the same.

[0053] Further, the square tube 120 is provided with sliding openings 130 on both sides, the top of the adjusting box body 110 is fixedly provided with a sliding groove 160, the two ends of the sliding groove 160 are in communication with the corresponding sliding openings 130, and the first air vents 170 are located in the sliding groove 160; the switching plate 300 is slidingly connected with the sliding groove 160, a second air vent 310 is formed through the switching plate 300, and the caliber of the second air vent 310 is larger than that of the first air vent 170. The switching plate 300 can selectively close one of the first air vents 170 by sliding on the sliding groove 160.

[0054] Further, the side wall of the adjusting box body 110 is fixedly provided with an electric telescopic rod 430, the telescopic end of the electric telescopic rod 430 penetrates the adjusting box body 110 and the end of the telescopic end is fixedly connected with one of the closing plates 420; the side of the adjusting box body 110 away from the electric telescopic rod 430 is provided with a C-shaped connecting rod 440, one end of the C-shaped connecting rod 440 penetrates the side wall of the adjusting box body 110 and the end is fixedly connected with the other closing plate 420, and the other end of the C-shaped connecting rod 440 is fixedly connected with one end of the switching plate 300; the electric telescopic rod 430 is used for controlling the movement of the filtering channel 400, and under the connection of the C-shaped connecting rod 440, the switching plate 300 moves together with the filtering channel 400.

[0055] It is worth noting that the electric telescopic rod 430, the air inlet fan 700 and the micro air pump 141 are all controlled by an external power supply, which will not be described in detail here.

[0056] When the upper and lower ends of the two filtering plates 410 are respectively abutted against the partition plates 180 and the ash storage grooves 600, the second air vent 310 is in communication with the first air vents 170 above the small channels between the two filtering plates 410, the switching plate 300 closes the other first air vent 170, and the upper and lower ends of one of the closing plates 420 are respectively abutted against the corresponding partition plates 180 and the ash storage grooves 600.

[0057] Specifically, as shown in Figure 5 When the upper and lower ends of the two filtering plates 410 are respectively abutted against the partition plates 180 and the ash storage grooves 600, one of the closing plates 420 closes one side, the partition plates 180, the ash storage grooves 600 and the filtering channel 400 form two filtering cavities, at this time, the second air vent 310 is in communication with the first air vents 170 above the small channels between the two filtering plates 410, the air containing harmful gas and dust enters the two filtering plates 410 from the square tube 120, the second air vent 310 and the first air vent 170, is filtered by one of the filtering plates 410 and is discharged from the side not closed by the closing plate 420, and the dust is partially collected in the ash storage groove 600 after being filtered and intercepted; the air containing harmful gas is sucked into the liquid storage tank 200 by the micro air pump 141 and is treated, thereby avoiding the problem of blockage and difficult cleaning caused by too much dust entering the liquid storage tank 200.

[0058] As shown in Figure 6 When the filtering plate 410 is located directly below the corresponding first air vent 170, the second air vent 310 is in communication with the two first air vents 170.

[0059] As shown in Figure 6As shown in state 1 in the figure, when the filter plate 410 is blocked by dust, the air containing harmful gas and dust changes the air inlet direction and enters the new filter plate 410 from the other first air inlet 170, and the air containing harmful gas is discharged from the side not blocked by the unblocked plate 420 into the new liquid storage tank 200, thereby quickly solving the problem of blockage of the filter plate 410, and after adjusting the air inlet direction, the filter plate 410 adhering to the dust is below the middle partition plate 180 and is blown by the air in the opposite direction, so that the dust adhering to the filter plate 410 falls into the dust storage groove 600 to automatically clean the filter plate 410, thereby quickly solving the problem of blockage of the filter plate 410 and automatically cleaning the filter plate 410, and the equipment can work continuously.

[0060] Further, one side wall of the square tube 120 is provided with a plug-in port 150, and the inner wall of the square tube 120 is fixedly provided with a plug-in groove 190 in communication with the plug-in port 150; the plug-in port 150 is plugged with a filter screen groove 800, the filter screen groove 800 comprises a filter screen groove body 810, the filter screen groove body 810 is in sliding connection with the plug-in groove 190, the bottom of the filter screen groove body 810 is a filter screen 820, one side of the filter screen groove 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 arranged on the closing panel 830. The filter screen groove 800 can be fixedly installed with the square tube 120 and can be disassembled for dust cleaning.

[0061] The air sucked by the air inlet fan 700 is filtered by the filter screen groove 800, and large-particle impurities in the air are retained in the filter screen groove 800, so that the filter plate 410 in the adjusting tank body 110 mainly filters small-particle substances, thereby reducing the risk of blockage of the filter plate 410.

[0062] Further, the limiting mechanism comprises four slide rods 640, the four slide rods 640 are respectively fixedly connected with the bottom of the bottom plate 611, and a limiting block 641 is fixedly arranged at one end of the slide rod 640; a spring 650 and a sliding block 660 are sleeved on the slide rod 640, and the two ends of the spring 650 are respectively fixedly connected with the bottom plate 611 and the sliding block 660;

[0063] The four sliders 660 are fixed together by the bracket 680. A limiting screw 661 is fixed 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 with a limiting nut 670.

[0064] This invention utilizes a limiting mechanism design. When the slider 660 is fixed at a certain height by the limiting screw 661 and the limiting nut 670, the bottom plate 611 of the ash storage trough 600 abuts against the bottom of the regulating box 100. At this point, the spring 650 is compressed, and the ash storage trough 600 is installed. After the intake fan 700 has been running for a period of time, the filter plate 410 becomes clogged. The air pressure inside the filter chamber formed by the sealing plate 180, the ash storage trough 600, and the filter channel 400 continuously increases, ultimately acting on the ash storage trough 610, causing the ash storage trough 610 to become clogged. The downward movement of the ash storage tank 610 further compresses the spring 650; after the ash storage tank 610 moves downward, the internal pressure of the filter chamber is released from its sealed state and returns to normal. The spring 650 resets, causing the ash storage tank 610 to move upward and reset. After resetting, since the filter plate 410 is still blocked, the air pressure in the filter chamber continues to increase, causing the ash storage tank 610 to move downward. In this way, the ash storage tank 610 and the slide bar below will move up and down repeatedly, thereby promptly reminding the staff that the filter plate 410 is blocked. This allows for quick and timely control of the adjustment mechanism to adjust the air intake direction, thus effectively preventing blockage.

[0065] Furthermore, a movable ash trough 630 is inserted into the ash storage trough opening 620. The movable ash trough 630 is easy to disassemble and unload ash.

[0066] like Figure 6 As shown in state 2, when it is necessary to disassemble the ash storage tank 600 for ash discharge, loosen the limit nut 670 and let the bottom plate 611 slide down along the second slide groove 530. This structural design can also assist in deep cleaning of the filter plate 410. When the dust adhering to the filter plate 410 cannot be automatically cleaned after a long period of use, the ash storage tank 600 is disassembled and slid down. Then, by controlling the electric telescopic rod 430, the filter plate 410 is moved to the position directly below the corresponding first vent 170. At this time, the second vent 310 is connected to both first vents 170. By operating the air intake fan 700, air can be blown into both filter plates 410 and the interior of the regulating box body 110 at the same time, thereby achieving deep cleaning. While cleaning the dust, it can also facilitate the ash discharge operation of the ash storage tank 600.

[0067] Further, the liquid storage tank 200 is provided with a plurality of exhaust ports 230 above the sidewall away from the ash storage tank 600, one sidewall of the liquid storage tank 200 is provided with a liquid inlet pipe 210 in communication, the bottom of the liquid storage tank 200 is provided with a liquid outlet pipe 220 in communication, and the liquid inlet pipe 210 and the liquid outlet pipe 220 are both provided with valves. The treated gas is discharged from the exhaust port, the liquid outlet pipe 220 can discharge the invalid treatment liquid, and the liquid inlet pipe 210 can add new treatment liquid.

[0068] It should be noted that, by cooperating the adjusting mechanism with the adjusting tank 100, the problem of the filter plate 410 being blocked can be quickly solved, the filter plate 410 can be automatically cleaned, the liquid storage tank 200 can be automatically switched, the old liquid storage tank 200 can be replaced with new treatment liquid in idle time, and the comprehensive guarantee of the equipment circulating work without shutdown is realized.

[0069] Further, the top end of the square pipe 120 is provided with an installation plate 121 extending outward, the installation plate 121 is provided with a threaded port, and the installation plate 121 is fixedly connected with the air inlet fan 700 through bolts, so that the installation and dismounting of the air inlet fan 700 are facilitated.

[0070] The above is only the preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several improvements and changes can be made without departing from the inventive concept, and these are within the protection scope of the present application.

Claims

1. A clogging-preventive TBM tunnel boring harmful gas treatment device characterized by comprising: The adjusting box (100) is internally provided with an adjusting mechanism; two liquid storage tanks (200) are symmetrically and fixedly installed at the bottom of the adjusting box (100), the inside of the liquid storage tank (200) is communicated with the bottom of the adjusting 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 at the middle of the bottom of the adjusting box (100), and a bottom frame (500) is fixedly installed at the bottom of the adjusting box (100), the bottom frame (500) comprises a base (510), and two support plates (520) are vertically and fixedly arranged on the base (510); a second sliding groove (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 formed in the side wall of the second sliding groove (530); The dust storage tank (600) comprises a dust storage tank body (610), the dust storage tank body (610) is inserted into the through port at the bottom of the adjusting box (100); a bottom plate (611) is fixedly arranged at the bottom of the dust storage tank body (610); a limiting mechanism is fixedly connected to the bottom of the bottom plate (611); the limiting mechanism comprises four sliding rods (640), the four sliding rods (640) are respectively fixedly connected to the periphery of the bottom of the bottom plate (611), and a limiting block (641) is fixedly arranged at one end of the sliding rod (640); a spring (650) and a sliding block (660) are sleeved on the sliding rod (640), the two ends of the spring (650) are respectively fixedly connected to the bottom plate (611) and the sliding block (660); a limiting screw rod (661) is fixedly arranged on the sliding block (660), the limiting screw rod (661) penetrates through the corresponding limiting groove (531), and the end portion of the limiting screw rod (661) is screwed with a limiting nut (670); The adjusting box (100) comprises an adjusting box body (110), three partition plates (180) are fixedly arranged at equal distances on the inner top wall of the adjusting box body (110); adjacent partition plates (180) and the inner wall of the adjusting box body (110) form partition grooves; the top of the dust storage tank (600) is provided with two dust storage tank openings (620), the dust storage tank openings (620) are located directly below the partition grooves corresponding to the partition plates (180); the adjusting mechanism comprises a filtering channel (400), the filtering channel (400) is located between the partition plates (180) and the dust storage tank (600), two filtering plates (410) are fixedly and equally connected in the filtering channel (400), and the left and right sides of the filtering channel (400) are both closed plates (420); and the top and bottom of the filtering channel (400) are open; the filtering channel (400) is divided into three small channels with the same size by the filtering plates (410) and the closed plates (420); the front and back sides of the filtering channel (400) are attached to the inner wall of the adjusting box body (110); the sizes of the channel openings of the small channels, the dust storage tank openings (620) and the partition grooves are the same.

2. The clogging-preventable TBM tunnel boring harmful gas treatment device according to claim 1, characterized by, The four sliding blocks (660) are fixedly connected through a support (680).

3. The clogging-preventable TBM tunnel boring harmful gas treatment device according to claim 1, characterized by, The top of the adjusting box body (110) is provided with two first air vents (170) penetratingly, and the two first air vents (170) are located between the corresponding adjacent partition plates (180) respectively; the top of the adjusting box body (110) is fixedly connected with a square tube (120), and an air inlet fan (700) is installed at the top end of the square tube (120); the first air vent (170) is located in the square tube (120).

4. The clogging-preventable TBM tunnel boring harmful gas treatment device according to claim 3, characterized by The adjusting mechanism comprises a switching plate (300).

5. The clogging-preventable TBM tunnel boring harmful gas treatment device according to claim 4, characterized by Both sides of the square tube (120) are provided with sliding openings (130), and the top of the adjusting box body (110) is fixedly provided with a sliding groove (160), both ends of the sliding groove (160) are communicated with the corresponding sliding openings (130), and the first air vent (170) is located in the sliding groove (160); the switching plate (300) is slidably connected with the sliding groove (160), a second air vent (310) penetratingly passes through the switching plate (300), and the caliber of the second air vent (310) is larger than that of the first air vent (170).

6. The clogging-preventable TBM tunnel boring harmful gas treatment device according to claim 5, characterized by An electric telescopic rod (430) is fixedly installed on the side wall of the adjusting box body (110), the telescopic end of the electric telescopic rod (430) penetrates through the adjusting box body (110), and the end head of the telescopic end is fixedly connected with one of the closing plates (420); the side of the adjusting box body (110) away from the electric telescopic rod (430) is provided with a C-shaped connecting rod (440), one end of the C-shaped connecting rod (440) penetrates through the side wall of the adjusting box body (110) and the end head is fixedly connected with the other closing plate (420), and the other end of the C-shaped connecting rod (440) is fixedly connected with one end of the switching plate (300); When the upper and lower ends of the two filter plates (410) are respectively abutted with the partition plates (180) and the ash storage grooves (600), the second air vent (310) is communicated with the first air vent (170) above the small groove between the two filter plates (410), the switching plate (300) closes the other first air vent (170), and the upper and lower ends of one of the closing plates (420) are respectively abutted with the corresponding partition plates (180) and the ash storage grooves (600); When the filter plate (410) is located directly below the corresponding first air vent (170), the second air vent (310) is communicated with the two first air vents (170).

7. The clogging-preventable TBM tunnel boring harmful gas treatment device according to claim 3, characterized by The side wall of the square tube (120) is provided with a plug-in port (150), the inner wall of the square tube (120) is fixedly provided with a plug-in slot (190), the plug-in slot (190) is communicated with the plug-in port (150); the plug-in port (150) is plugged with a filter screen slot (800), the filter screen slot (800) comprises a filter screen slot body (810), the filter screen slot body (810) is slidably connected with the plug-in slot (190), the bottom of the filter screen slot body (810) is a filter screen (820), one side of the filter screen slot body (810) is fixedly provided with a closing panel (830), 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 arranged on the closing panel (830).

8. The clogging-preventable TBM tunnel boring harmful gas treatment device according to claim 3, characterized by The movable ash chute (630) is plugged into the ash storage slot (620).

9. The clogging-preventable TBM tunneling harmful gas treatment device according to claim 1, characterized by, A plurality of exhaust ports (230) are arranged above the side wall of the liquid storage tank (200) away from the ash storage chute (600), a liquid inlet pipe (210) is communicated with one side wall of the liquid storage tank (200), a liquid outlet pipe (220) is communicated with the bottom of the liquid storage tank (200), and valves are arranged on the liquid inlet pipe (210) and the liquid outlet pipe (220).

10. The clogging-preventable TBM tunneling harmful gas treatment device according to claim 3, characterized by, The mounting plate (121) is fixedly connected with the air inlet fan (700) through bolts.

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