Multi-mode slag removal mechanism and movable slag removal device

Abstract

The invention belongs to the technical field of devices for removing or transporting excavated materials or gangues, and particularly provides a multi-mode slag removing mechanism and a movable slag removing device. The multi-mode slag removal mechanism comprises a rack, a slag box and an annular conveyor, the rack comprises a bottom plate and side plates located on the left side and the right side of the bottom plate, the annular conveyor is installed in a groove-shaped structure defined by the bottom plate and the two side plates, an opening in the front end of the groove-shaped structure allows accumulated slag to enter, an opening in the rear end of the groove-shaped structure is communicated with the slag box, and a gap is formed between the annular conveyor and the bottom plate. The annular conveyor, the bottom plate and the two side plates jointly define a circulation channel allowing slag water to circulate, and a discharging opening used for being connected with a slurry discharging pipe and communicating with the circulation channel is formed in the machine frame. The movable slag removal device comprises the multi-mode slag removal mechanism. Different slag removal modes can be switched according to different slag deposition conditions, and the device is suitable for complex geological construction.

Description

Technical Field

[0001] The invention belongs to the technical field of devices for removing or transporting excavated materials or gangue, and in particular relates to a multi-mode slag cleaning mechanism and a mobile slag cleaning device. Background Art

[0002] During the construction of tunnel boring machines (shield machines, TBMs), there are conditions such as falling slag from the tunnel wall, water gushing from the face, internal scouring and water accumulation, and falling slag from the belt conveyor. A large amount of sludge, water accumulation, slag and other pollutants are generated at the bottom of the tunnel, affecting the normal construction. To solve the above problems, slag removal devices are generally used in this field to remove pollutants at the bottom of the tunnel.

[0003] In order to clean up solid materials such as slag and rocks, the utility model patent with authorization announcement number CN218934429U of the applicant of this application provides a slag cleaning system mounted on a TBM, which includes a slag cleaning mechanism installed on a rear supporting trailer, and the slag cleaning mechanism includes a bracket, on which a slag conveyor is installed, and a slag scraper is installed at the front end of the slag conveyor, and the rear end is located on the rear supporting belt conveyor. The slag at the bottom of the tunnel can be transported backwards to the slag conveyor through the slag scraper, and the slag conveyor transports the slag to the rear supporting belt conveyor, and the rear supporting belt conveyor continues to transport the slag backwards. The utility model patent with authorization announcement number CN221322413U provides a slag cleaning device that can move freely at the bottom of the tunnel. Specifically, the slag cleaning device includes a traveling mechanism and a slag cleaning mechanism installed on the traveling mechanism. The slag cleaning mechanism includes a slag guide plate, a scraper conveyor belt, a slag storage box, and a slag transport box. The slag guide plate is arranged obliquely, and its front end is lower and provided with a slag inlet channel, and the rear end is provided with two slag outlets corresponding to the slag storage box and the slag transport box respectively. The rotation of the scraper conveyor belt can drive the fallen slag entering the slag inlet channel to be transported backward along the slag guide plate, and discharged from the corresponding slag outlet to the slag storage box or the slag transport box.

[0004] Regarding the cleaning of liquids such as mud and water, since mud and water have good fluidity, the relevant technology is generally to equip the construction site with a slurry drainage system, using slurry pumps, submersible pumps and other devices to pump and drain water.

[0005] During construction in complex hydrogeology, the accumulated slag pollutants inside the tunnel are often a mixture of accumulated water, slag, sludge, etc. However, the existing slag removal devices have a single working mode and are difficult to adapt to slag removal operations in complex geological conditions. Summary of the invention

[0006] The purpose of the present invention is to provide a multi-mode slag cleaning mechanism to solve the technical problem that the slag cleaning device in the prior art has a single working mode and is difficult to adapt to complex geology. The purpose of the present invention is also to provide a mobile slag cleaning device to solve the same technical problem.

[0007] To achieve the above purpose, the technical solution of the multi-mode slag cleaning mechanism provided by the present invention is: A multi-mode slag cleaning mechanism comprises a frame, a slag box and an annular conveyor. The frame comprises a bottom plate and side plates located on the left and right sides of the bottom plate. The annular conveyor is installed in a trough structure surrounded by the bottom plate and the two side plates. The opening at the front end of the trough structure is for the accumulated slag to enter, and the opening at the rear end is connected to the slag box. There is a gap between the annular conveyor and the bottom plate, and the annular conveyor, the bottom plate and the two side plates together form a circulation channel for slag water to circulate. A discharge port for connecting a slurry discharge pipe and communicating with the circulation channel is provided on the frame.

[0008] As a further improvement, the annular conveyor is a reversible conveyor. When the annular conveyor rotates forward, the slag entering the trough structure is conveyed into the slag box through the annular conveyor. When the annular conveyor reverses, the slag water is guided into the circulation channel.

[0009] As a further improvement, the ring conveyor is a belt conveyor, and the conveyor belt is provided with a plurality of push plates arranged at intervals along the conveying direction of the conveyor belt.

[0010] As a further improvement, a slag guiding structure for guiding the accumulated slag into the opening is provided at the front end opening of the trough structure. The slag guiding structure includes a shovel plate and baffles located on both sides of the shovel plate. The shovel plate is provided with a water passage with a set size connected to the circulation channel for slag water to flow through.

[0011] As a further improvement, a grille is installed on the shovel plate, and the grille holes constitute the water passage.

[0012] As a further improvement, two scraping wheels are installed on the shovel board and rotate in opposite directions to convey the slag on the shovel board to the ring conveyor.

[0013] As a further improvement, a slag discharge port for connecting to a slag extraction pipe is provided at the lower portion of the slag box.

[0014] As a further improvement, a spray device is also installed on the slag box and is located above the rear side of the ring conveyor. The spray device has a water spray port facing the interior of the slag box and a water pipe interface for connecting a water supply pipe.

[0015] As a further improvement, the spray device is installed on the slag box through a rotating structure, and the rotating axis of the rotating structure extends horizontally perpendicular to the conveying direction of the ring conveyor, so that the direction of the water spray port can be changed by adjusting the rotation of the spray device.

[0016] As a further improvement, the slag box is provided with a liquid level detection device for detecting the height of the liquid level inside the slag box, so as to control the start and stop of the spraying device through the detection signal of the liquid level detection device.

[0017] As a further improvement, the rear end of the frame is hinged to the slag box, and the multi-mode slag cleaning mechanism is equipped with a telescopic drive that drives the frame to pitch and swing around the hinge point. One end of the telescopic drive is hinged to the frame, and the other end is used to be hinged to the bearing base that supports the multi-mode slag cleaning mechanism.

[0018] As a further improvement, a switching device is installed at the discharge port to connect the slurry discharge pipe through the switching device.

[0019] As a further improvement, a slurry discharge pipe installation passage is provided inside the slag box, which runs through front to back and through which the slurry discharge pipe passes.

[0020] The present invention is a pioneering invention, and its beneficial effects are: when implemented, the slag cleaning mechanism in the present invention can adjust the slag cleaning mode according to the slag accumulation situation entering from the front end opening of the trough structure. Specifically, if the accumulated slag is mainly large pieces of solid slag, the ring conveyor can be started to deliver the slag to the slag box. If the accumulated slag is mainly muddy water (slag water) with a high water content, the muddy water can enter the gap between the ring conveyor and the bottom plate, that is, the circulation channel, and is connected to the slurry discharge pipe through the discharge port. Negative pressure can be formed inside the circulation channel, and the muddy water is pumped away by the slurry discharge pipe. From the above analysis, it can be seen that the present invention can switch different slag cleaning modes according to different slag accumulation situations, and is suitable for complex geological construction.

[0021] To achieve the above purpose, the technical solution of the mobile slag cleaning device provided by the present invention is: A mobile slag cleaning device comprises a traveling chassis that can move forward and backward, a multi-mode slag cleaning mechanism is installed on the traveling chassis, the multi-mode slag cleaning mechanism comprises a frame, a slag box, and a ring conveyor, the frame comprises a bottom plate and side plates located on the left and right sides of the bottom plate, the ring conveyor is installed in a trough structure surrounded by the bottom plate and the two side plates, the opening at the front end of the trough structure is for accumulated slag to enter, and the opening at the rear end is connected to the slag box, there is a gap between the ring conveyor and the bottom plate, and the ring conveyor, the bottom plate and the two side plates together form a circulation channel for slag water to circulate, and a discharge port for connecting a slurry discharge pipe and communicating with the circulation channel is provided on the frame.

[0022] As a further improvement, the annular conveyor is a reversible conveyor. When the annular conveyor rotates forward, the slag entering the trough structure is conveyed into the slag box through the annular conveyor. When the annular conveyor reverses, the slag water is guided into the circulation channel.

[0023] As a further improvement, the ring conveyor is a belt conveyor, and the conveyor belt is provided with a plurality of push plates arranged at intervals along the conveying direction of the conveyor belt.

[0024] As a further improvement, a slag guiding structure for guiding the accumulated slag into the opening is provided at the front end opening of the trough structure. The slag guiding structure includes a shovel plate and baffles located on both sides of the shovel plate. The shovel plate is provided with a water passage with a set size connected to the circulation channel for slag water to flow through.

[0025] As a further improvement, a grille is installed on the shovel plate, and the grille holes constitute the water passage.

[0026] As a further improvement, two scraping wheels are installed on the shovel board and rotate in opposite directions to convey the slag on the shovel board to the ring conveyor.

[0027] As a further improvement, a slag discharge port for connecting to a slag extraction pipe is provided at the lower portion of the slag box.

[0028] As a further improvement, a spray device is also installed on the slag box and is located above the rear side of the ring conveyor. The spray device has a water spray port facing the interior of the slag box and a water pipe interface for connecting a water supply pipe.

[0029] As a further improvement, the spray device is installed on the slag box through a rotating structure, and the rotating axis of the rotating structure extends horizontally perpendicular to the conveying direction of the ring conveyor, so that the direction of the water spray port can be changed by adjusting the rotation of the spray device.

[0030] As a further improvement, the slag box is provided with a liquid level detection device for detecting the height of the liquid level inside the slag box, so as to control the start and stop of the spraying device through the detection signal of the liquid level detection device.

[0031] As a further improvement, the rear end of the frame is hinged to the slag box, and the multi-mode slag cleaning mechanism is equipped with a telescopic driver that drives the frame to pitch and swing around the hinge point. One end of the telescopic driver is hinged to the frame, and the other end is hinged to the walking chassis.

[0032] As a further improvement, a switching device is installed at the discharge port to connect the slurry discharge pipe through the switching device.

[0033] As a further improvement, a slurry discharge pipe installation passage is provided inside the slag box, which runs through front to back and through which the slurry discharge pipe passes.

[0034] The present invention is a pioneering invention, and its beneficial effects are: when implemented, the slag cleaning mechanism in the present invention can adjust the slag cleaning mode according to the slag accumulation situation entering from the front end opening of the trough structure. Specifically, if the accumulated slag is mainly large pieces of solid slag, the ring conveyor can be started to deliver the slag to the slag box. If the accumulated slag is mainly muddy water (slag water) with a high water content, the muddy water can enter the gap between the ring conveyor and the bottom plate, that is, the circulation channel, and is connected to the slurry discharge pipe through the discharge port. Negative pressure can be formed inside the circulation channel, and the muddy water is pumped away by the slurry discharge pipe. From the above analysis, it can be seen that the present invention can switch different slag cleaning modes according to different slag accumulation situations, and is suitable for complex geological construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is an axonometric diagram of an embodiment of a mobile slag cleaning device in the present invention; Figure 2 It is a front view of an embodiment of a mobile slag cleaning device in the present invention; Figure 3 A side view of an embodiment of a mobile slag cleaning device of the present invention; Figure 4 A top view of an embodiment of a mobile slag cleaning device of the present invention; Figure 5 An axonometric view of a slag cleaning mechanism configured for an embodiment of a mobile slag cleaning device in the present invention; Figure 6 An axonometric perspective view of a slag cleaning mechanism configured for an embodiment of a mobile slag cleaning device in the present invention; Figure 7 It is a structural schematic diagram of a traveling chassis of an embodiment of a mobile slag cleaning device in the present invention; Figure 8 A schematic diagram of the slag cleaning process of an embodiment of the mobile slag cleaning device of the present invention (mode 1); Fig. 9 A schematic diagram of the slag cleaning process of an embodiment of the mobile slag cleaning device of the present invention (mode 2); Fig.10 A schematic diagram of the slag cleaning process of an embodiment of the mobile slag cleaning device of the present invention (mode three); Fig.11 Schematic diagram of the slag cleaning process of the mobile slag cleaning device embodiment of the present invention (mode four).

[0036] Description of reference numerals: 1. Walking chassis; 2. Frame; 3. Ring conveyor; 4. Slag box; 5. Spraying device; 6. Water supply pipe; 7. Slurry discharge pipe; 8. Slag extraction pipe; 9. Liquid level sensor; 10. Rotating structure; 11. Slag guiding structure; 12. Grille; 13. Slag scraper wheel; 14. Telescopic drive; 15. Adapter; 101. Crawler walking mechanism; 201. Bottom plate; 202. Side plate; 301. Conveyor belt; 302. Push plate; 1101. Shovel plate; 1102. Baffle. DETAILED DESCRIPTION

[0037] In order to make the slag cleaning device suitable for slag cleaning operations of different media, the basic technical concept of the present invention is to provide a slag cleaning mechanism with pumping and slurry discharge and ring conveyor slag discharge in parallel. Different working modes can be matched according to different slag accumulation conditions to ensure smooth slag cleaning operations. The present invention is further described in detail below in conjunction with the embodiments.

[0038] The specific embodiment of the mobile slag cleaning device provided by the present invention is as follows: The mobile slag cleaning device provided in this embodiment is as follows: Figure 1-Figure 4As shown, it includes a walking chassis 1 that can move freely at the bottom of the tunnel. Specifically, the walking chassis 1 can be a chassis equipped with a crawler walking mechanism 101. Compared with a tire walking mechanism, the crawler walking mechanism 101 is more suitable for use on uneven bottom roads. A multi-mode slag cleaning mechanism is installed on the walking chassis 1. The walking chassis 1 is equivalent to the bearing base of the multi-mode slag cleaning mechanism. The movement of the walking chassis 1 can drive the multi-mode slag cleaning mechanism to move forward and backward, thereby realizing that the multi-mode slag cleaning mechanism can be freely and flexibly moved to different positions when working.

[0039] The multi-mode slag cleaning mechanism basically includes two slag cleaning modes, one of which is to use the ring conveyor 3 to continuously transport large pieces of slag, and the other is to use the slurry discharge pipe 7 to pump muddy water (slag water) with a large water content. Specifically, Figure 5 , Figure 6 , Figure 8-Figure 11 As shown, the multi-mode slag cleaning mechanism includes a frame 2, an annular conveyor 3 and a slag box 4. The frame 2 is a trough-shaped structure with openings at both ends and the top of the frame as a whole, which serves as a basis for installing the annular conveyor 3. Specifically, the frame 2 includes a bottom plate 201 and side plates 202 located on the left and right sides of the bottom plate 201. The bottom plate 201 and the side plates 202 are enclosed together to form a trough-shaped structure. The annular conveyor 3 is installed inside the trough-shaped structure. The opening at the front end of the trough-shaped structure is for the slag to enter. The slag here refers to the slag at the bottom of the tunnel. When the complex geological construction is carried out, the slag may include a mixture of large pieces of slag, muddy water, mud and sand. The slag box 4 is used to store the slag, which has a volume of a set size. Its specific shape can be square, cylindrical, etc., and the upper end can be open or closed. The opening at the rear end of the trough-shaped structure is connected to the slag box 4. If the slag at the bottom of the tunnel is mainly large pieces of slag, the slag entering the trough structure can be sent to the inside of the slag box 4 by the annular conveyor 3. There is a set interval between the ring conveyor 3 and the bottom plate 201, and the interval can allow slag-water mixtures such as mud and sand, muddy water to enter and circulate, and under the blocking and guiding action of the two side plates 202, the slag-water mixture can stably flow along the interval between the ring conveyor 3 and the bottom plate 201, that is, the ring conveyor 3, the bottom plate 201 and the two side plates 202 together enclose a circulation channel for the slag water to circulate. In order to pump out the slag water entering the circulation channel, a discharge port connected to the circulation channel is also provided on the frame 2. During construction, the discharge port can be used to connect the slurry discharge pipe 7. After the slurry discharge pipe 7 is started, a negative pressure is formed inside the circulation channel, and the slag water can be pumped out. Preferably, the discharge port can be set on the bottom plate 201, which is convenient for the discharge of slag water. However, in other embodiments, the method of setting the discharge port on the side plate 202 is not excluded.

[0040] In order to facilitate the smooth entry of slag during construction, in this embodiment, a slag guide structure 11 is further provided at the opening of the front end of the frame 2, i.e., the trough-shaped structure. The slag guide structure 11 is used to guide the slag into the opening, which can ensure the removal effect of the slag. Specifically, Figure 1As shown, the slag guiding structure 11 is a structure similar to the push shovel structure, including a shovel plate 1101 and baffles 1102 located on both sides of the shovel plate 1101. In order to achieve a better effect of collecting and guiding the accumulated slag, the opening enclosed by the baffles 1102 on both sides is larger than the opening at the front end of the frame 2. The shovel plate 1101 is also provided with a water passage connected to the circulation channel for the slag water mixture to flow through, and the water passage has a set size. At this time, the shovel plate 1101 also has the effect of preliminary filtering and separation. Large pieces of slag and stone cannot pass through the water passage and can be sent to the ring conveyor 3. Muddy water can pass through the water passage and enter the circulation channel. Specifically, the shovel plate 1101 has a large transparent through hole in the middle position, and a grille 12 is installed at the through hole. The grille holes of the grille 12 constitute the water passage. The grille 12 can be replaced as a whole. In the case of large wear, the grille 12 can be directly replaced, and the cost is low. Of course, in other embodiments, the method of directly opening a through hole (circular, long strip, wavy) on the shovel plate 1101 is not excluded.

[0041] In order to optimize the slag guiding effect of the slag guiding structure 11 , a slag scraper wheel 13 is further installed on the shovel plate 1101 . Two slag scraper wheels 13 are provided. The two slag scraper wheels 13 rotate towards each other and can deliver the slag on the shovel plate 1101 to the ring conveyor 3 .

[0042] The above provides an implementation method with better slag guiding and cleaning effects. In fact, in other implementation methods, the slag guiding structure 11 may not be provided, and the accumulated slag can still enter the opening at the front end of the frame 2, and since the interval between the ring conveyor 3 and the bottom plate 201 is fixed, the slag water can still enter the circulation channel. If the accumulated slag at the bottom of the tunnel cannot be completely removed, the accumulated slag can be removed manually using tools such as shovels during construction.

[0043] In order to further expand the slag cleaning mode of the multi-mode slag cleaning mechanism, the ring conveyor 3 can be selected as a ring conveyor 3 that can be reversible, which can be achieved by controlling the forward and reverse rotation of the driving element (motor or hydraulic motor) that drives the ring conveyor 3. Define the rotation direction of the ring conveyor 3 to transport large pieces of slag to the slag box 4 as positive. When the ring conveyor 3 rotates forward, the large pieces of slag can be sent into the slag box 4 through the ring conveyor 3. When the ring conveyor 3 reverses, in fact, the ring conveyor 3 also has the function of guiding and pushing slag water into the circulation channel. On this basis, the multi-mode slag cleaning mechanism can realize the following four slag cleaning modes: ① Such as Figure 8 As shown, when the accumulated slag is mainly large pieces of slag, the ring conveyor 3 rotates forward and the slag is conveyed into the slag box 4.

[0044] ② If Fig. 9As shown, in the case where the accumulated slag is mainly slag water, the ring conveyor 3 is reversed, and the slag water can be assisted to be sent into the circulation channel, and the slurry discharge pipe 7 is connected to the frame 2. After the valve on the slurry discharge pipe 7 is opened, a negative pressure is formed inside the circulation channel, and the slag water is pumped to the slag storage equipment in the tunnel, such as the sewage tank on the tunnel boring machine trailer.

[0045] ③ Such as Fig.10 As shown, in extreme cases, if there is too much mud and water, and the slurry discharge pipe 7 is not pumped out in time, the annular conveyor 3 can be reversed at high power to send the mud and water directly from the circulation channel to the slag box 4.

[0046] ④ Such as Fig.11 As shown, in another extreme case, if the accumulated slag is a mixture of large pieces of slag and muddy water, the ring conveyor 3 rotates forward, and the large pieces of slag that cannot enter the circulation channel are conveyed to the slag box 4 by the ring conveyor 3, and the muddy water that enters the circulation channel is pumped away by the slurry discharge pipe 7.

[0047] In order to realize the above-mentioned several slag removal modes, preferably, the ring conveyor 3 can adopt a belt conveyor, and the belt conveyor is preferably a belt conveyor, and a plurality of push plates 302 are arranged on its conveyor belt 301, and the push plates 302 are arranged at intervals along the conveying direction of the conveyor belt 301. The spacing between two adjacent push plates 302 and the height of the push plates 302 are no longer specifically limited in this embodiment, and can be flexibly set according to specific conveying requirements. When the push plates 302 are provided, when the ring conveyor 3 rotates forward, the slag can be lifted by the push plates 302, which is suitable for conveying at a large inclination angle, especially when the slag is slippery, and can ensure the smooth conveying of the slag. When the ring conveyor 3 is reversed, the push plates 302 also have the function of promoting the flow of slag water. Of course, it should be noted that in other embodiments, the case of using a scraper conveyor as the ring conveyor 3 is not excluded.

[0048] In order to meet the requirement of continuous conveying of slag and stone, in this embodiment, Figure 1-Figure 6 As shown, a slag discharge port for connecting a pumping pipe is provided at the lower part of the slag box 4. When performing slag cleaning operations, the slag, slag water, etc. delivered to the slag box 4 can be pumped out through the pumping pipe. Among them, the calibers of the slag discharge port and the pumping pipe should meet the requirements of slag transportation.

[0049] Furthermore, a spray device 5 is installed on the slag box 4, and the spray device 5 is located above the rear side of the ring conveyor 3. The spray device 5 has a water spray port facing the inside of the slag box 4 and a water pipe interface for connecting the water supply pipe 6. When performing slag cleaning operations, the spray device 5 can be turned on, and the spray device 5 can spray water into the inside of the slag box 4. On the one hand, the slag discharged from the ring conveyor 3 to the slag box 4 can be impacted to quickly fall into the slag box 4. On the other hand, since the viscosity of water is greater than that of air, this can also facilitate the rapid extraction of slag in the slag box 4. Specifically, the spray device 5 can be the spray pipe shown in the figure, and a nozzle can be installed at the water spray port provided on the spray pipe. Alternatively, the spray device 5 can also be a spray tank, a spray box, etc., and the spray port can also be a long strip.

[0050] Furthermore, the spray device 5 is installed on the slag box 4 through a rotatable rotating structure 10, and the rotating axis extends horizontally perpendicular to the conveying direction of the ring conveyor 3. The rotating structure 10 can be a manually adjusted rotating frame. When performing slag cleaning operations, the spray device 5 can be driven to rotate by adjusting the rotating structure 10, thereby adjusting the direction of the water spray port. In this way, the fluidity of water can be used to ensure that the slag and stone at various positions in the slag box 4 can be sent to the bottom of the slag box 4 and sucked away by the slag extraction pipe 8. In addition, the spray device 5 can also flush the inner wall of the slag box 4 to prevent mud and slag from adhering to the inner wall of the slag box 4.

[0051] Furthermore, the slag box 4 is provided with a liquid level detection device for detecting the liquid level height of the slag box 4. Specifically, the liquid level detection device may use a liquid level sensor 9 or a rangefinder based on the principle of sound and light ranging. When performing slag cleaning operations, the spray device 5 can be started and stopped according to the ranging signal of the liquid level sensor 9. There are many ways to control the start and stop of the spray device 5. For the spray device 5 of the spray pipe type, the valve on the water supply pipe 6 can be directly controlled to close. For the spray device 5 of the water spray box or the spray tank type, the water spray port can be controlled to close. The specific control principle is the prior art and will not be described in detail. An automatic control system is provided to ensure that a certain water level is maintained inside the slag box 4 to avoid water shortage or excessive water overflow. Of course, in other implementations, the internal situation of the slag box 4 can also be manually observed to manually control the start and stop of the spray device 5.

[0052] In addition, when the multi-mode slag cleaning mechanism is installed, the rear end of the frame 2 is integrally hinged on the slag box 4, and the hinge axis extends horizontally (perpendicular to the conveying direction of the ring conveyor 3), thereby realizing the up and down pitching and swinging of the frame 2. In addition, the multi-mode slag cleaning mechanism is also equipped with a telescopic driver 14 that drives the frame 2 to pitch and swing. Figure 3 and Figure 7As shown, one end of the telescopic driver 14 is hinged on the frame 2, and the other end is used to be hinged on the bearing base of the multi-mode slag cleaning mechanism, that is, the walking chassis 1. Specifically, the telescopic driver 14 can be an electric push rod, a hydraulic cylinder, a cylinder, etc. In this way, the front end height of the frame 2 can be flexibly adjusted according to different slag accumulation heights to ensure the slag cleaning effect and prevent the front end of the frame 2 from rubbing against the ground.

[0053] It should be emphasized here that this embodiment provides a case where the multi-mode slag cleaning mechanism is installed on the walking chassis 1. In other embodiments, the multi-mode slag cleaning device can be integrated on the tunnel boring machine, for example, it can be integrated on the main beam or connecting bridge or trailer of the TBM. In this case, the corresponding bearing bases are the main beam, connecting bridge, and trailer, respectively, and the other end of the telescopic drive 14 can be hinged on the corresponding bearing base.

[0054] It should also be noted that the slurry discharge pipe 7 is preferably made of a steel pipe. When the slurry discharge pipe 7 is connected, a flexible expansion joint can be provided at the front end of the slurry discharge pipe 7 to ensure that the frame 2 can swing smoothly.

[0055] In order to facilitate the connection of the slurry discharge pipe 7, Figure 8-Figure 11 As shown, a transfer device 15 is provided at the position of the discharge port on the frame 2. In fact, the discharge port is connected to the discharge pipe 7 through the transfer device 15, so that the position of connecting the discharge pipe 7 can be adjusted according to actual conditions. Specifically, a quick connector can be installed on the transfer device 15. Of course, in other embodiments, the method of directly connecting the discharge pipe 7 to the discharge port is not excluded.

[0056] In addition, the slag box 4 has a slurry discharge pipe installation passage that passes through the slurry discharge pipe 7. Figure 6 As shown, from a perspective, the slurry discharge pipe 7 can directly pass through the slurry discharge pipe installation channel, which is convenient and efficient, and can also save the space occupied by the slurry discharge pipe 7. The slag box 4 also has the function of supporting the slurry discharge pipe 7. Specifically, a partition can be set inside the slag box 4, and through holes can be opened at the front and rear ends to form a slurry discharge pipe installation channel.

[0057] When the ring conveyor 3 is provided, the ring conveyor 3 including the inclined section and the horizontal section can be selected, and the horizontal section is located at the rear end. Compared with the ring conveyor 3 with all inclined sections, this can ensure that the direction of the slag discharged backward from the ring conveyor 3 is horizontal, and it is easier to fall into the slag box 4 in a parabolic trajectory.

[0058] Specific embodiments of the multi-mode slag cleaning mechanism of the present invention: The embodiment of the multi-mode slag cleaning mechanism is the multi-mode slag cleaning mechanism described in the above-mentioned mobile slag cleaning device, which will not be described in detail here.

[0059] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-mode slag cleaning mechanism, characterized in that: It includes a frame, a slag box, and a ring conveyor. The frame includes a bottom plate and side plates located on the left and right sides of the bottom plate. The ring conveyor is installed in a trough structure surrounded by the bottom plate and the two side plates. The opening at the front end of the trough structure is for the accumulated slag to enter, and the opening at the rear end is connected to the slag box. There is a gap between the ring conveyor and the bottom plate, and the ring conveyor, the bottom plate and the two side plates together form a circulation channel for the circulation of slag water. A discharge port for connecting a slurry discharge pipe and communicating with the circulation channel is provided on the frame.

2. The multi-mode slag cleaning mechanism according to claim 1 is characterized in that: The annular conveyor is a conveyor that can rotate forward and reverse. When the annular conveyor rotates forward, the slag entering the trough structure is sent into the slag box through the annular conveyor. When the annular conveyor rotates reversely, the slag water is guided into the circulation channel.

3. The multi-mode slag cleaning mechanism according to claim 1 or 2, characterized in that: The ring conveyor is a belt conveyor, and a plurality of push plates arranged at intervals along the conveying direction of the conveyor belt are provided on the conveyor belt.

4. The multi-mode slag cleaning mechanism according to claim 1 or 2, characterized in that: A slag guiding structure for guiding the accumulated slag into the opening is provided at the front opening of the trough structure. The slag guiding structure includes a shovel plate and baffles located on both sides of the shovel plate. The shovel plate is provided with a water passage with a set size connected to the circulation channel for slag water to flow through.

5. The multi-mode slag cleaning mechanism according to claim 4 is characterized in that: A grille is installed on the shovel plate, and the grille holes constitute the water passage.

6. The multi-mode slag cleaning mechanism according to claim 4 is characterized in that: The shovel plate is also provided with two slag wheels which rotate in opposite directions to convey the slag on the shovel plate to the ring conveyor.

7. The multi-mode slag cleaning mechanism according to claim 1 or 2, characterized in that: A slag discharge port for connecting a slag extraction pipe is provided at the lower part of the slag box.

8. The multi-mode slag cleaning mechanism according to claim 7 is characterized in that: The slag box is also provided with a spray device located above the rear side of the ring conveyor. The spray device has a water spray port facing the inside of the slag box and a water pipe interface for connecting a water supply pipe.

9. The multi-mode slag cleaning mechanism according to claim 8, characterized in that: The spray device is installed on the slag box through a rotating structure, and the rotating axis of the rotating structure extends horizontally perpendicular to the conveying direction of the ring conveyor, so that the direction of the water spray port can be changed by adjusting the rotation of the spray device.

10. The multi-mode slag cleaning mechanism according to claim 8, characterized in that: The slag box is equipped with a liquid level detection device for detecting the height of the liquid level inside the slag box, so as to control the start and stop of the spraying device through the detection signal of the liquid level detection device.

11. The multi-mode slag cleaning mechanism according to claim 1 or 2, characterized in that: The rear end of the frame is hinged on the slag box, and the multi-mode slag cleaning mechanism is equipped with a telescopic driver for driving the frame to pitch and swing around the hinge point. One end of the telescopic driver is hinged to the frame, and the other end is used to be hinged to the bearing base that carries the multi-mode slag cleaning mechanism.

12. The multi-mode slag cleaning mechanism according to claim 1 or 2, characterized in that: A transfer device is installed at the discharge port to connect the slurry discharge pipe through the transfer device.

13. The multi-mode slag cleaning mechanism according to claim 1 or 2, characterized in that: A slurry discharge pipe installation passage is provided inside the slag box and is connected front to back for the slurry discharge pipe to pass through.

14. A mobile slag cleaning device, comprising a traveling chassis that can move forward and backward, characterized in that: The multi-mode slag cleaning mechanism described in any one of claims 1 to 13 is installed on the walking chassis.

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