Shield deslagging system

Abstract

The invention relates to the technical field of shield tunneling, in particular to a shield deslagging system which comprises a screw conveyor, a water filtering device, a slope belt conveyor and a slag scraping belt conveyor. A filtering opening is formed in the outer wall of the screw conveyor; the water filtering device is connected with the outer wall of the screw conveyor so as to communicate with the interior of the screw conveyor through the filtering opening, and the water filtering device is used for intermittently sucking water in the screw conveyor; the bevel belt conveyor and the screw conveyor are arranged in parallel at intervals, the bevel belt conveyor is used for gathering muck in the screw conveyor and conveying the muck, and the bevel belt conveyor is located under the screw conveyor in a working state; the slag scraping belt conveyor and the slope belt conveyor are arranged in parallel at intervals, and the slag scraping belt conveyor is movably connected with the slope belt conveyor so that the slag scraping belt conveyor can be close to or far away from the slope belt conveyor on the premise that the slag scraping belt conveyor is parallel to the slope belt conveyor, and a plurality of scraping plates used for scraping slag accumulated on the slope belt conveyor are arranged on a belt of the slag scraping belt conveyor. The muck conveying device is suitable for muck conveying under the gushing working condition and has the good muck discharging efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of shield tunneling, and in particular to a shield slag discharge system. Background Art

[0002] The earth pressure balance shield machine uses a screw conveyor and an inclined belt conveyor to discharge slag. The inclined belt conveyor is located below the screw conveyor. The slag in the shield machine is brought out to the inclined belt conveyor by the screw conveyor. When the shield machine is shut down for a long time or excavates into a water-rich stratum, there will be a problem of gushing when resuming excavation, which will cause the water content in the slag to be too high. The slag has high fluidity. When it falls on the inclined belt conveyor, it is easy to splash and overflow along the downward direction of the slope, resulting in some slag not being transported and gathering in the tunnel. Summary of the invention

[0003] The present application provides a shield slag removal system, which reduces the moisture in the screw machine, uses a scraper to scrape off the slag accumulated on the inclined belt conveyor and drives the slag to move so that the inclined belt conveyor can transport it, so as to solve the problem that some slag cannot be transported and accumulates in the tunnel under the gushing condition.

[0004] This application is implemented through the following technical solutions:

[0005] A shield slag discharging system, comprising:

[0006] A screw machine is used to cooperate with the shield body to transport the debris at the cutter disc to the tail shield. A filter port is provided on the outer wall of the screw machine. In the working state, the length direction of the screw machine forms an angle with the horizontal plane;

[0007] A water filter device, the water filter device is connected to the outer wall of the screw machine to communicate with the interior of the screw machine through the filter port, and the water filter device is used to intermittently suck water from the screw machine;

[0008] An inclined belt conveyor, which is arranged in parallel and spaced relation with the spiral conveyor, and is used to collect and transport the slag in the spiral conveyor. In the working state, the inclined belt conveyor is located directly below the spiral conveyor;

[0009] A scraper belt conveyor is arranged in parallel and at intervals with the inclined belt conveyor and is movably connected with the inclined belt conveyor so that the scraper belt conveyor can approach or move away from the inclined belt conveyor while maintaining parallelism with the inclined belt conveyor. A plurality of scrapers for scraping off the debris accumulated on the inclined belt conveyor are arranged on the belt of the scraper belt conveyor.

[0010] The shield slag discharge system provided in the present application can successfully extract the moisture in the spiral machine from the viscous thin slag by sucking the thin slag in the spiral machine through the water filtering device, and the suction action of the water filtering device on the spiral machine is intermittent, so that the thin slag after being sucked can be easily taken away from the original position by other thin slag to avoid clogging of the filter port; after the thin slag in the spiral machine has its water content reduced by the filtering device, its viscosity increases, so the splashing of the thin slag in the spiral machine when it falls on the inclined belt conveyor is improved, and after the thin slag on the inclined belt conveyor flows downward along the inclined surface and gathers, the scraper on the scraper belt conveyor can scrape off the gathered thin slag, and the flow of the thin slag is improved under the mechanical limit of the scraper belt conveyor and the friction of the inclined belt conveyor, so that the thin slag can be maintained in position on the inclined belt conveyor, and then can be successfully transported to the designated position by the inclined belt conveyor.

[0011] In some optional embodiments, the driving shaft of the scraper belt conveyor is drivingly connected to the driven shaft of the inclined belt conveyor.

[0012] In some optional embodiments, both ends of the scraper belt conveyor are rotatably connected to the inclined belt conveyor through a first rotating assembly and a second rotating assembly respectively;

[0013] Among them, the driving shaft of the scraper belt conveyor is rotatably connected to the first rotating component, the driven shaft of the scraper belt conveyor is rotatably connected to the second rotating component, and the first rotating component and the second rotating component are respectively rotatably connected to the inclined belt conveyor, so that the scraper belt conveyor can approach or move away from the inclined belt conveyor while maintaining parallelism with the inclined belt conveyor.

[0014] In some optional embodiments, the first rotating component includes:

[0015] A first swing shaft, the first swing shaft is rotatably connected to the inclined belt conveyor and is transmission-connected to a driven shaft of the inclined belt conveyor;

[0016] A first swing arm, the first swing arm comprises a first sub-rod and a second sub-rod arranged at intervals, wherein the first sub-rod is rotatably connected to the first swing shaft, and the second sub-rod is rotatably connected to the driving shaft of the scraper belt conveyor;

[0017] An intermediate movable shaft is rotationally connected to the first sub-rod and the second sub-rod, and is transmission-connected to the first swing shaft and the driving shaft of the scraper belt conveyor so that the first swing shaft and the driving shaft of the scraper belt conveyor can rotate synchronously.

[0018] In some optional embodiments, the second rotating assembly includes:

[0019] a second swing shaft, the second swing shaft being connected to the inclined belt conveyor;

[0020] The second swing arm is rotationally connected to the second swing shaft and is rotationally connected to the driven shaft of the scraper belt conveyor. A switching power source is connected between the second swing arm and the inclined belt conveyor, and the switching power source is used to drive the second swing arm to rotate on the second swing shaft.

[0021] In some optional embodiments, the water filtering device comprises:

[0022] A water passage cavity, wherein a water passage inlet and a water passage outlet are respectively provided at both ends of the water passage cavity along the length direction, and a filter assembly is provided at the water passage inlet to block the debris in the screw machine;

[0023] a first one-way conducting component, wherein the first one-way conducting component is disposed in the water passage cavity;

[0024] a second one-way conducting component, the second one-way conducting component is disposed in the water-passing cavity, the first one-way conducting component and the second one-way conducting component are arranged at intervals along the length direction of the water-passing cavity, and the first one-way conducting component, the second one-way conducting component and the water-passing cavity enclose a closed water-passing transit cavity;

[0025] A water pressure chamber, the water pressure chamber is connected to the water transfer chamber, the water pressure chamber is provided with a suction assembly, the suction assembly can suck the air in the water transfer chamber into the water pressure chamber or press the air in the water pressure chamber into the water transfer chamber;

[0026] Wherein, the conducting direction of the first one-way conducting component and the second one-way conducting component is from the water inlet to the water outlet.

[0027] In some optional embodiments, the first one-way conduction component includes:

[0028] A first isolation plate, the first isolation plate is sealed and connected to the inner wall of the water passage cavity, and a first water passage hole is formed on the first isolation plate;

[0029] a first isolating member, the first isolating member being located in the water transfer cavity and being capable of blocking the first water passing hole along the length direction of the water passing cavity;

[0030] a first elastic driving member, the first elastic driving member is connected to the first isolating member and is fixed relative to the water passage cavity;

[0031] Wherein, the first isolating member blocks the first water hole under the elastic force of the first elastic driving member.

[0032] In some optional embodiments, the first isolating member is configured as a sphere;

[0033] A spherical protrusion that matches the shape of the first isolating member is configured on the first isolating plate, and the first water passage hole is located on the spherical protrusion.

[0034] In some optional embodiments, the second one-way conduction component includes:

[0035] A second isolation plate, the second isolation plate is sealed and connected to the inner wall of the water passage cavity, and a second water passage hole is formed on the second isolation plate;

[0036] a second isolating member, the second isolating member being located between the second isolating plate and the water outlet and being capable of blocking the second water hole along the length direction of the water cavity;

[0037] a second elastic driving member, the second elastic driving member being connected to the second isolating member and being fixed relative to the water passage cavity;

[0038] Wherein, the second isolating member blocks the second water hole under the elastic force of the second elastic driving member.

[0039] In some optional embodiments, the second isolation member is configured as a sphere;

[0040] The second isolation plate is provided with a spherical protrusion that matches the shape of the second isolation member, and the second water passage hole is located on the spherical protrusion.

[0041] Compared with the prior art, this application has the following advantages and beneficial effects:

[0042] 1. The shield slag discharge system provided in the present application can successfully extract the moisture in the spiral machine from the viscous thin slag by sucking the thin slag in the spiral machine through the water filtering device, and the suction action of the water filtering device on the spiral machine is intermittent, so that the thin slag after being sucked can be easily taken away from the original position by other thin slag to avoid clogging of the filter port; after the thin slag in the spiral machine is reduced in water content by the filtering device, the viscosity is increased, so the splashing of the thin slag in the spiral machine when it falls on the inclined belt conveyor is improved, and after the thin slag on the inclined belt conveyor flows downward along the inclined surface and gathers, the scraper on the scraper belt conveyor can scrape the gathered thin slag, and the flow of the thin slag is improved under the mechanical limit of the scraper belt conveyor and the friction of the inclined belt conveyor, so that the thin slag can be maintained in position on the inclined belt conveyor, and then can be successfully transported to the designated position by the inclined belt conveyor.

[0043] 2. The shield slag discharge system provided in this application can reduce the amount of thin slag accumulated in the tunnel, and has a high slag discharge efficiency, which can improve the efficiency of shield tunnel construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present application and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0045] Figure 1 A schematic diagram of the structure of a shield slag discharge system provided in an embodiment of the present application;

[0046] Figure 2 A schematic diagram of the structure of a sludge conveying device provided in an embodiment of the present application;

[0047] Figure 3 A schematic diagram of the cross-sectional structure of a sludge conveying device provided in an embodiment of the present application;

[0048] Figure 4 A schematic diagram of the structure of a bevel gear transmission mechanism provided in an embodiment of the present application;

[0049] Figure 5 A schematic diagram of the structure of a water filter device provided in an embodiment of the present application;

[0050] Figure 6 A schematic diagram of the cross-sectional structure of the water passage cavity provided in an embodiment of the present application;

[0051] Figure 7 A schematic diagram of the cross-sectional structure of the water pressure chamber provided in an embodiment of the present application;

[0052] Figure 8 A schematic cross-sectional structure diagram of a first one-way conducting component provided in an embodiment of the present application;

[0053] Fig. 9 This is a schematic diagram of the cross-sectional structure of a second one-way conducting component provided in an embodiment of the present application.

[0054] Marks and corresponding parts names in the attached drawings:

[0055] 100-cutter disc, 200-shield, 300-tail shield, 400-screw machine, 500-water filtering device, 501-water passage cavity, 502-filtering component, 503-water pressure cavity, 504-suction component, 505-first one-way conducting component, 5051-first isolation plate, 5052-first isolation member, 5053-first elastic driving member, 5054-first water passage hole, 506-second one-way conducting component, 5061-second isolation plate, 5062-second isolation member, 5063-second elastic driving member, 5064-second water passage hole, 507-suction piston, 508-reciprocating driving member, 600-slag conveying device, 601- inclined belt conveyor, 602- slag baffle plate, 603- scraper belt conveyor, 604- switching power source, 605- first rotating assembly, 6051- first swing shaft, 6052- first sub-rod, 6053- intermediate movable shaft, 6054- second sub-rod, 606- second rotating assembly, 607- scraper, 608- bevel gear transmission mechanism, 6081- first bevel gear set, 6082- first transmission shaft, 6083- clutch, 6084- second transmission shaft, 6085- second bevel gear set, 6086- first positioning bearing seat, 6087- second positioning bearing seat, 609- first auxiliary rotating assembly, 700- support frame. DETAILED DESCRIPTION

[0056] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with examples and drawings. The illustrative implementation scheme of the present application and its description are only used to explain the present application and are not intended to limit the present application.

[0057] See also Figure 1 and Figure 2 An embodiment of the present application provides a shield slag discharge system, which includes a screw machine 400, a water filtering device 500, an inclined belt conveyor 601 and a scraping belt conveyor 603.

[0058] The screw machine 400 is usually installed in the shield body 200. The function of the screw is to transport the thin slag at the cutter disc 100 to the tail shield 300. The tail shield 300 has a large construction space, which is conducive to the secondary transportation of the thin slag to transport the thin slag to a designated location. A filter port is provided on the outer wall of the screw machine 400, so that the water in the screw machine 400 can reach the outside of the screw machine 400 from the filter port. In the working state, the length direction of the screw machine 400 forms an angle with the horizontal plane.

[0059] The water filtering device 500 is connected to the outer wall of the screw machine 400 so as to be connected to the inside of the screw machine 400 through the filter port. The function of the water filtering device 500 is to filter the water in the screw machine 400 through the filter port to retain the thin residue in the screw machine 400; the water filtering device 500 is used to intermittently suck the water in the screw machine 400, so that the water filtering device 500 can separate the water from the viscous thin residue. After the water in the thin residue is separated, its viscosity increases. By configuring the working mode of the water filtering device 500 to intermittent suction, the thin residue will not be continuously sucked after the water is separated, so that it can be easily carried away from the original position by other thin residues to prevent the filter port from being blocked.

[0060] The inclined belt conveyor 601 can be installed in the tunnel through the support frame 700. The inclined belt conveyor 601 is arranged parallel to the spiral machine 400 and is used to gather the thin slag in the spiral machine 400 and transport the thin slag. Normally, the inclined belt conveyor 601 is provided with a slag blocking plate 602. The three slag blocking plates 602 are respectively connected to the inclined belt conveyor 601 to form a slag blocking groove together with the belt of the inclined belt conveyor 601. The slag blocking groove has two notches, one of which is oriented parallel to the length direction of the inclined belt conveyor 601, and the other notch corresponds to the slag outlet of the spiral machine 400. In the working state, the inclined belt conveyor 601 is located directly below the spiral machine 400 so that the notch of the slag blocking groove corresponds to the slag outlet of the spiral machine 400 in the vertical position.

[0061] The scraper belt conveyor 603 and the inclined belt conveyor 601 form a sludge conveying device 600. The scraper belt conveyor 603 is arranged in parallel and at intervals with the inclined belt conveyor 601 and is movably connected to the inclined belt conveyor 601 so that the scraper belt conveyor 603 can approach or move away from the inclined belt conveyor 601 while maintaining parallelism with the inclined belt conveyor 601. The belt of the scraper belt conveyor 603 is provided with a plurality of scrapers 607 for scraping off the sludge in the slag retaining trough.

[0062] Under the gushing condition, first open the water filter 500 to filter the water in the screw machine 400. After the water content in the screw machine 400 is reduced to the expected value, open the valve on the screw machine 400 to allow the thin slag in the screw machine 400 to fall onto the inclined belt conveyor 601. At the same time, adjust the distance between the scraper belt conveyor 603 and the inclined belt conveyor 601 to form a small distance between the scraper 607 and the inclined belt conveyor 601. The end of the scraper belt conveyor 603 is at the same height as the thin slag in the slag retaining groove. Therefore, when the scraper belt conveyor 603 is running, the scraper 607 thereon can scrape the thin slag. The scraped thin slag moves in an upward direction of the inclined surface driven by the scraper 607 and the inclined belt conveyor 601. Since the distance between the scraper 607 and the inclined belt conveyor 601 is small, the thin slag will not flow downward easily, thereby achieving successful transportation of the thin slag. Under normal working conditions, the water filter device 500 is turned off and the distance between the scraper belt conveyor 603 and the inclined belt conveyor 601 is increased.

[0063] The shield slag discharge system provided in the embodiment of the present application can successfully extract the water in the screw machine 400 from the viscous slag by sucking the thin slag in the screw machine 400 through the water filtering device 500, and the suction action of the water filtering device 500 on the screw machine 400 is intermittent, so that the sucked thin slag can be easily taken away from the original position by other thin slags to avoid clogging of the filter port; after the thin slag in the screw machine 400 is reduced in water content by the filtering device, the viscosity increases, so the screw machine 400 When the thin slag in 00 falls onto the inclined belt conveyor 601, the splashing situation is improved. After the thin slag on the inclined belt conveyor 601 flows downward along the inclined surface and gathers, the gathered thin slag can be scraped off by the scraper 607 on the scraper belt conveyor 603. The flow of the thin slag is improved under the mechanical limit of the scraper belt conveyor 603 and the friction force of the inclined belt conveyor 601, so that the thin slag can be maintained in position on the inclined belt conveyor 601, and can then be successfully transported to the designated position by the inclined belt conveyor 601.

[0064] In some optional embodiments, the driving shaft of the scraper belt conveyor 603 is drivingly connected to the driven shaft of the inclined belt conveyor 601. That is, the scraper belt conveyor 603 rotates synchronously with the inclined belt conveyor 601, the linear speed of the scraper 607 is equal to the linear speed of the inclined belt conveyor 601, and the scraper 607 does not produce relative movement when it is close to the inclined belt conveyor 601, which is conducive to the smooth transportation of thin slag.

[0065] In some optional embodiments, such as Figure 2As shown, both ends of the scraper belt conveyor 603 are rotationally connected to the inclined belt conveyor 601 through the first rotating component 605 and the second rotating component 606 respectively; wherein, the driving shaft of the scraper belt conveyor 603 is rotationally connected to the first rotating component 605, so that the main shaft of the scraper belt conveyor 603 can rotate freely on the first rotating component 605, and the driven shaft of the scraper belt conveyor 603 is rotationally connected to the second rotating component 606, so that the driven shaft of the scraper belt conveyor 603 can rotate freely on the second rotating component 606, and the first rotating component 605 and the second rotating component 606 are rotationally connected to the inclined belt conveyor 601 respectively, so that the scraper belt conveyor 603 can approach or move away from the inclined belt conveyor 601 while maintaining parallelism with the inclined belt conveyor 601.

[0066] When implementing the Figure 2 and Figure 3 The first rotating assembly 605 may specifically include a first swing shaft 6051 and a first swing rod; the first swing shaft 6051 is rotatably connected to the inclined belt conveyor 601 so that the first swing shaft 6051 can rotate freely around its own axis, and the first swing shaft 6051 is also connected to the driven shaft of the inclined belt conveyor 601; the first swing rod includes a first sub-rod 6052, a second sub-rod 6054 and an intermediate movable shaft 6053; one end of the first sub-rod 6052 is rotatably connected to the first swing shaft 6051, and in the normal direction of the belt surface of the scraping belt conveyor 603, the other end of the first sub-rod 6052 is higher than the scraping belt conveyor 603; one end of the second sub-rod 6054 is connected to the scraping belt conveyor The intermediate movable shaft 6053 is rotatably connected to the driving shaft of the scraper belt conveyor 603; the intermediate movable shaft 6053 is rotatably connected to the other ends of the first sub-rod 6052 and the second sub-rod 6054 at the same time, which means that the intermediate movable shaft 6053 is movably arranged in the first sub-rod 6052 and the second sub-rod 6054 at the same time, and the two ends of the intermediate movable shaft 6053 are respectively connected to the driving shaft of the scraper belt conveyor 603 and the first swing shaft 6051 with a belt transmission; wherein, an elastic member is arranged between the inclined belt conveyor 601 and the first sub-rod 6052 to make the first sub-rod 6052 have a rotation tendency, and an elastic member is arranged between the second sub-rod 6054 and the first sub-rod 6052 to make the second sub-rod 6054 have a rotation tendency. Such an arrangement can improve the tensioning capacity of the first swing rod on the belt in the scraper belt conveyor 603 and reduce the support structure arrangement in the scraper belt conveyor 603. At the same time, the first sub-rod 6052 can be located outside the slag blocking groove, and the second sub-rod 6054 can be located inside the slag blocking groove. The power of the inclined belt conveyor 601 is transmitted to the driven shaft of the scraper belt conveyor 603 through the intermediate movable shaft 6053, so that the transmission structure of the first swing shaft 6051 and the inclined belt conveyor 601 is located outside the slag blocking groove. The transmission structure can be protected from the influence of sludge, ensuring its normal operation for a long time.

[0067] In some optional embodiments, an elastic member is provided between the first swing arm and the inclined belt conveyor 601 to make the first swing arm have a tendency to rotate. In this way, the elastic force provided by the elastic member can further provide tension for the belt of the scraper belt conveyor 603. Since the scraper belt conveyor 603 does not bear the weight of the slag, the scraper belt conveyor 603 can be exempted from the need to provide a retaining structure for its belt, thereby making the structure of the scraper belt conveyor 603 simpler, that is, the scraper belt conveyor 603 can only include a belt, a driving shaft, a driven shaft, and a scraper 607 provided on the belt.

[0068] In some optional embodiments, the first rotating assembly 605 is connected to the driven shaft of the inclined belt conveyor 601 through a bevel gear transmission mechanism 608. The bevel gear transmission mechanism 608 has the function of changing the direction of movement, which is conducive to the simplification of the structure.

[0069] In some optional embodiments, please refer to Figure 2 and Figure 4 The bevel gear transmission mechanism 608 includes a first bevel gear set 6081, a first transmission shaft 6082, a clutch 6083, a second transmission shaft 6084 and a second bevel gear set 6085; the first bevel gear set 6081 is connected to the driven shaft of the bevel belt conveyor 601, and the first bevel gear set 6081 includes two bevel gears meshing with each other, one of which is coaxially connected to the driven shaft of the bevel belt conveyor 601; one end of the first transmission shaft 6082 is rotationally connected to the bevel belt conveyor 601 and is coaxially connected to another bevel gear in the first bevel gear set 6081 to rotate synchronously with the driven shaft of the bevel belt conveyor 601; the clutch 6083 is connected to the other end of the first transmission shaft 6082; one end of the second transmission shaft 6084 is connected to the clutch 6083; the second bevel gear set 6085 includes two bevel gears meshing with each other, one of which is coaxially connected to the second transmission shaft 6084, and the other is coaxially connected to the first swing shaft 6051. With this arrangement, after the gushing ends, the first transmission shaft 6082 and the second transmission shaft 6084 can be separated by the clutch 6083, so that the scraper belt conveyor 603 will not run synchronously with the inclined belt conveyor 601, ensuring that the scraper belt conveyor 603 has a considerable service life.

[0070] In some optional embodiments, the first transmission shaft 6082 is connected to the inclined belt conveyor 601 through a first positioning bearing seat 6086. In actual implementation, the number of the first positioning bearing seats 6086 can be configured as two, and the two first positioning bearing seats 6086 are arranged at intervals along the axial direction of the first transmission shaft 6082 and respectively cooperate with the first transmission shaft 6082. Through the provision of the first positioning bearing seats 6086, it can be ensured that the first transmission shaft 6082 has a stable posture when rotating.

[0071] In some optional embodiments, the second transmission shaft 6084 is connected to the inclined belt conveyor 601 through a second positioning bearing seat 6087. In actual implementation, the number of the second positioning bearing seats 6087 can be configured as two, and the two second positioning bearing seats 6087 are arranged at intervals along the axial direction of the second transmission shaft 6084 and respectively cooperate with the second transmission shaft 6084. Through the arrangement of the second positioning bearing seats 6087, it can be ensured that the second transmission shaft 6084 has a stable posture when rotating.

[0072] In some optional embodiments, the second rotating assembly 606 includes a second swing shaft and a second swing arm; the second swing shaft is connected to the inclined belt conveyor 601; the second swing arm is rotationally connected to the second swing shaft and is rotationally connected to the driven shaft of the scraper belt conveyor 603, and a switching power source 604 is connected between the second swing arm and the inclined belt conveyor 601, and the switching power source 604 is used to drive the second swing arm to rotate on the second swing shaft.

[0073] The switching power source 604 can be configured as a telescopic member. In actual implementation, the switching power source 604 can be configured as a cylinder, wherein the fixed end of the telescopic member is rotatably connected to the inclined belt conveyor 601, the moving end is rotatably connected to the middle of the second swing rod, and the fixed end and the second swing shaft are arranged at intervals along the length direction of the inclined belt conveyor 601. Thus, by controlling the telescopic member to extend and retract, the second swing rod can be driven to rotate on the inclined belt conveyor 601, thereby driving the scraping belt conveyor 603 to approach or move away from the inclined belt conveyor 601.

[0074] In some optional embodiments, in order to better support the scraper belt conveyor 603, a first auxiliary rotating assembly 609 and a second auxiliary rotating assembly may be further included. The first auxiliary rotating assembly 609 corresponds to the position of the first rotating assembly 605 in the width direction of the scraper belt conveyor 603 and is respectively located on both sides of the scraper belt conveyor 603, and the second auxiliary rotating assembly corresponds to the position of the second rotating assembly 606 in the width direction of the scraper belt conveyor 603 and is respectively located on both sides of the scraper belt conveyor 603; the first auxiliary rotating assembly 609 includes an auxiliary rotating shaft, an auxiliary swing rod, an auxiliary intermediate rod and an auxiliary driving rod, the auxiliary rotating shaft is connected to the inclined belt conveyor 601, the auxiliary swing rod is rotatably connected to the auxiliary rotating shaft, the auxiliary intermediate rod is rotatably connected to the auxiliary swing rod, one end of the auxiliary driving rod is rotatably connected to the auxiliary intermediate rod, and the other end is rotatably connected to the driving shaft of the scraper belt conveyor 603; the structure of the second auxiliary rotating assembly can be set to be the same as the second rotating assembly 606.

[0075] In some optional embodiments, the surface of the scraper 607 forms an angle with the belt surface. In this way, the side of the scraper 607 away from the belt can be inserted into the accumulated slag, and can perform a better scraping effect. At the same time, in the process of driving the slag, the belt of the scraper belt conveyor 603 is less likely to be locally deformed, which is conducive to the transportation of the slag.

[0076] In some optional embodiments, such as Figure 5-6 As shown, the water filtering device 500 includes a water passage cavity 501, a first one-way conducting component 505, a second one-way conducting component 506 and a water pressure cavity 503; the water passage cavity 501 as a whole can be set to a cylindrical shape, the port at one axial end of the water passage cavity 501 serves as a water passage inlet, and the other axial end serves as a water passage outlet, and the water passage inlet is provided with a filter component 502 to block the debris in the screw machine 400. In actual implementation, the filter component 502 can be set as a filter screen; the first one-way conducting component 505 is arranged in the water passage cavity 501; the second one-way conducting component 506 is arranged in the water passage cavity 501, and the first one-way conducting component 505 and the second one-way conducting component 506 are arranged at intervals along the length direction of the water passage cavity 501, and the first one-way conducting component 505, The second unidirectional conductive component 506 and the water passage cavity 501 enclose a closed water passage transit cavity; the overall shape of the pressure water cavity 503 can also be a cylindrical shape, the pressure water cavity 503 is connected to the water passage transit cavity, the pressure water cavity 503 can be vertically connected to the outer wall of the water passage cavity 501, and the pressure water cavity 503 is provided with a suction component 504, which can suck the air in the water passage transit cavity into the pressure water cavity 503 or press the air in the pressure water cavity 503 into the water passage transit cavity; wherein, the conduction direction of the first unidirectional conductive component 505 and the second unidirectional conductive component 506 are both from the water passage inlet to the water passage outlet, which means that the fluid can only enter the water passage transit cavity from the water passage inlet side, and the fluid can only flow out of the water passage transit cavity from the water passage outlet side.

[0077] In the embodiment of the present application, after the water inlet is connected to the inside of the screw machine 400 through the filter port, the water transfer chamber is sucked by the suction component 504. Due to the unidirectional conduction effect of the first unidirectional conduction component 505 and the second unidirectional conduction component 506, the water in the screw machine 400 can be filtered by the filter component 502 and then accelerated into the water transfer chamber and the water pressure chamber 503, and the medium outside the water outlet will not enter the water transfer chamber; then the water in the water pressure chamber 503 is pressed into the water transfer chamber by the suction component 504. Due to the unidirectional conduction effect of the first unidirectional conduction component 505 and the second unidirectional conduction component 506, the water in the water transfer chamber will not flow back to the screw machine 400, but will reach the water outlet through the second unidirectional conduction component 506, thereby realizing the discharge of water in the screw machine 400.

[0078] In the embodiment of the present application, compared with the conventional filtering and drainage method, the present application utilizes the suction force provided by the suction component 504 to extract the moisture of the thin slag in the screw machine 400, and the drainage efficiency is relatively high; and the water absorption process and the drainage process are independent of each other through the first one-way conductive component 505 and the second one-way conductive component 506, and do not interfere with each other. During the drainage process, the slag at the water inlet will not be continuously adsorbed, which is conducive to other thin slag in the screw machine 400 to take away the slag at the water inlet, and can prevent the water inlet from being blocked, ensuring that the device has a continuous good drainage effect.

[0079] In the embodiment of the present application, compared with the conventional intermittent control method, the present application utilizes the combined structure of the first one-way conductive component 505 and the second one-way conductive component 506 to simplify the design of the electric control system and reduce the wiring.

[0080] In some optional embodiments, please refer to Figure 6 and Figure 8 The first one-way conducting component 505 includes a first isolation plate 5051, a first isolation member 5052 and a first elastic driving member 5053; the first isolation plate 5051 is sealed and connected to the inner wall of the water passage cavity 501, and the overall shape of the first isolation plate 5051 can be set to a circular plate shape adapted to the water passage cavity 501, and a first water passage hole 5054 is opened on the first isolation plate 5051, and the first water passage hole 5054 can be set to a circular hole coaxial with the first isolation plate 5051. In other embodiments, the shape of the first water passage hole 5054 can also be It is set to be a square hole, a triangular hole, a polygonal hole, etc., and the axis of the first water through hole 5054 can also be eccentrically arranged with the axis of the first isolation plate 5051; the first isolation member 5052 is located in the water through transit cavity and can form a blockage for the first water through hole 5054 along the length direction of the water through cavity 501; the first elastic driving member 5053 is connected to the first isolation member 5052 and is relatively fixed to the water through cavity 501; wherein, the first isolation member 5052 forms a blockage for the first water through hole 5054 under the elastic force of the first elastic driving member 5053.

[0081] In some optional embodiments, the first elastic driving member 5053 is configured as a coil spring. In this way, the elastic force provided by the first elastic driving member 5053 is relatively stable, which can ensure that the first isolation member 5052 blocks the first water hole 5054.

[0082] In some optional embodiments, the first isolating member 5052 is configured as a sphere; a spherical protrusion matching the shape of the first isolating member 5052 is configured on the first isolating plate 5051, and the first water hole 5054 is located on the spherical protrusion. In this configuration, the inner wall surface of the spherical protrusion can provide a certain guiding effect for the first isolating member 5052, which is conducive to the first isolating member 5052 to quickly block the first water hole 5054. At the same time, the spherical protrusion and the first isolating member 5052 can have a larger contact area, which can improve the blocking effect.

[0083] In some optional embodiments, the portion other than the spherical protrusion on the first isolation plate 5051 is configured as a conical skirt structure. With this configuration, when there is hydraulic disturbance in the water transfer chamber causing the movement direction of the first isolation member 5052 to deviate, the wedge surface on the first isolation plate 5051 can guide the first isolation member 5052 to quickly enter the spherical protrusion, thereby achieving rapid blocking.

[0084] In some optional embodiments, please refer to Figure 6 and Fig. 9 The second one-way conducting component 506 includes a second isolation plate 5061, a second isolation member 5062 and a second elastic driving member 5063; the second isolation plate 5061 is sealed and connected to the inner wall of the water passage cavity 501, and the overall shape of the second isolation plate 5061 can be set to a circular plate shape adapted to the water passage cavity 501, and a second water passage hole 5064 is opened on the second isolation plate 5061, and the second water passage hole 5064 can be set to a circular hole coaxial with the second isolation plate 5061. In other embodiments, the shape of the second water passage hole 5064 can also be set to a square hole , triangular holes, polygonal holes, etc., and the axis of the second water through hole 5064 can also be eccentrically arranged with the axis of the second isolation plate 5061; the second isolation member 5062 is located between the second isolation plate 5061 and the water outlet and can block the second water through hole 5064 along the length direction of the water through cavity 501; the second elastic driving member 5063 is connected to the second isolation member 5062 and is relatively fixed to the water through cavity 501; wherein, the second isolation member 5062 blocks the second water through hole 5064 under the elastic force of the second elastic driving member 5063.

[0085] In some optional embodiments, the second elastic driving member 5063 is configured as a coil spring. In this way, the elastic force provided by the second elastic driving member 5063 is relatively stable, which can ensure that the second isolation member 5062 blocks the second water hole 5064.

[0086] In actual implementation, the first elastic driving member 5053 and the second elastic driving member 5063 can be an integrated structure, that is, the middle part of the coil spring is fixedly connected to the water passage cavity 501, one end of the coil spring is connected to the first isolation member 5052, and the other end is connected to the second isolation member 5062, one end of the coil spring applies a thrust to the first isolation member 5052 to hold the first isolation member 5052 against the first water passage hole 5054 to achieve blocking, and the other end of the coil spring applies a pulling force to the second isolation member 5062 to press the second isolation member 5062 against the second water passage hole 5064 to achieve blocking. This arrangement can reduce assembly work.

[0087] In some optional embodiments, the second isolating member 5062 is configured as a sphere; a spherical protrusion matching the shape of the second isolating member 5062 is configured on the second isolating plate 5061, and the second water hole 5064 is located on the spherical protrusion. In this configuration, the inner wall surface of the spherical protrusion can provide a certain guiding effect for the second isolating member 5062, which is conducive to the second isolating member 5062 to quickly block the second water hole 5064. At the same time, the spherical protrusion and the second isolating member 5062 can have a larger contact area, which can improve the blocking effect.

[0088] In some optional embodiments, the portion other than the spherical protrusion on the second isolation plate 5061 is configured as a conical skirt structure. In this configuration, when there is hydraulic disturbance in the water transfer chamber causing the movement direction of the second isolation member 5062 to deviate, the wedge surface on the second isolation plate 5061 can guide the second isolation member 5062 to quickly enter the spherical protrusion, thereby achieving rapid blocking.

[0089] In some optional embodiments, such as Figure 7 As shown, the suction assembly 504 includes a suction piston 507 and a reciprocating drive member 508; the suction piston 507 is located in the water pressure chamber 503 and is movably sealed with the inner wall of the water pressure chamber 503, and the overall shape of the suction piston 507 is cylindrical; the fixed end of the reciprocating drive member 508 is relatively fixed to the water pressure chamber 503, and the moving end of the reciprocating drive member 508 is connected to the suction piston 507 to drive the suction piston 507 to move back and forth in the water pressure chamber 503, wherein the fixed end can be set inside the water pressure chamber 503 or outside the water pressure chamber 503. When the fixed end is set outside the water pressure chamber 503, the piston rod of the fixed end moves through the water pressure chamber 503 and then connects to the suction piston 507, and the piston rod and the water pressure chamber 503 are movably and sealedly connected.

[0090] In some optional embodiments, the reciprocating driving member 508 is configured as a hydraulic cylinder, which can provide a great driving force, so that the water-passing cavity 501 is in a state of relatively large negative pressure, thereby making the first isolation member 5052 separate from the first water-passing hole 5054 .

[0091] In some optional embodiments, the fixed end includes a fixing seat, a mounting seat and a latch; the mounting seat is used to connect the screw machine 400; the latch is simultaneously passed through the mounting seat and the fixing seat so that the fixing seat can rotate around the latch axis on the mounting seat.

[0092] The above specific embodiments illustrate the implementation methods of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to the implementation methods. On the contrary, the purpose of introducing the application in conjunction with the implementation methods is to cover other options or modifications that may be extended based on the claims of the present application. In order to provide an in-depth understanding of the present application, the above description contains many specific details. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0093] It should be noted that in this specification, similar numbers and letters represent similar items in the above drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of this application, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0094] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A shield slag discharge system, characterized in that: include: A screw machine (400) is used to cooperate with the shield body (200) to transport the debris at the cutter head (100) to the tail shield (300), and a filter port is arranged on the outer wall of the screw machine (400). In a working state, the length direction of the screw machine (400) forms an angle with the horizontal plane; a water filtering device (500), the water filtering device (500) being connected to the outer wall of the screw machine (400) so as to be in communication with the interior of the screw machine (400) through the filter port, the water filtering device (500) being used for intermittently sucking water from the screw machine (400); An inclined belt conveyor (601), the inclined belt conveyor (601) and the spiral conveyor (400) are arranged in parallel and at intervals, the inclined belt conveyor (601) is used to gather the debris in the spiral conveyor (400) and transport the debris, and in a working state, the inclined belt conveyor (601) is located directly below the spiral conveyor (400); A scraper belt conveyor (603) is arranged in parallel and at intervals with the inclined belt conveyor (601) and is movably connected to the inclined belt conveyor (601) so that the scraper belt conveyor (603) can approach or move away from the inclined belt conveyor (601) while maintaining parallelism with the inclined belt conveyor (601). The belt of the scraper belt conveyor (603) is provided with a plurality of scrapers (607) for scraping off debris accumulated on the inclined belt conveyor (601).

2. The shield slag discharge system according to claim 1, characterized in that: The driving shaft of the scraper belt conveyor (603) is drivingly connected to the driven shaft of the inclined belt conveyor (601).

3. The shield slag discharge system according to claim 1, characterized in that: The two ends of the scraper belt conveyor (603) are rotatably connected to the inclined belt conveyor (601) via a first rotating assembly (605) and a second rotating assembly (606) respectively; Among them, the driving shaft of the scraper belt conveyor (603) is rotationally connected to the first rotating component (605), the driven shaft of the scraper belt conveyor (603) is rotationally connected to the second rotating component (606), and the first rotating component (605) and the second rotating component (606) are rotationally connected to the inclined belt conveyor (601) respectively, so that the scraper belt conveyor (603) can approach or move away from the inclined belt conveyor (601) while maintaining parallelism with the inclined belt conveyor (601).

4. The shield slag discharge system according to claim 3, characterized in that: The first rotating assembly (605) comprises: A first swing shaft (6051), the first swing shaft (6051) is rotationally connected to the inclined belt conveyor (601) and is transmission-connected to a driven shaft of the inclined belt conveyor (601); A first swing arm, the first swing arm comprising a first sub-rod (6052) and a second sub-rod (6054) arranged at intervals, wherein the first sub-rod (6052) is rotationally connected to the first swing shaft (6051), and the second sub-rod (6054) is rotationally connected to the driving shaft of the scraper belt conveyor (603); An intermediate movable shaft (6053), the intermediate movable shaft (6053) is rotationally connected to the first sub-rod (6052) and is rotationally connected to the second sub-rod (6054), the intermediate movable shaft (6053) is transmission-connected to the first swing shaft (6051) and is transmission-connected to the driving shaft of the scraper belt conveyor (603) so that the first swing shaft (6051) and the driving shaft of the scraper belt conveyor (603) can rotate synchronously.

5. The shield slag discharge system according to claim 3, characterized in that: The second rotating assembly (606) comprises: A second swing shaft, the second swing shaft being connected to the inclined belt conveyor (601); A second swing arm, the second swing arm is rotationally connected to the second swing shaft and is rotationally connected to the driven shaft of the scraper belt conveyor (603), a switching power source (604) is connected between the second swing arm and the inclined belt conveyor (601), and the switching power source (604) is used to drive the second swing arm to rotate on the second swing shaft.

6. The shield slag discharge system according to claim 1, characterized in that: The water filtering device (500) comprises: A water passage cavity (501), wherein the water passage cavity (501) is provided with a water passage inlet and a water passage outlet at both ends along the length direction, and the water passage inlet is provided with a filter assembly (502) to block the debris in the screw machine (400); A first one-way conducting component (505), wherein the first one-way conducting component (505) is arranged in the water passage cavity (501); a second one-way conducting component (506), the second one-way conducting component (506) being arranged in the water-passing cavity (501), the first one-way conducting component (505) and the second one-way conducting component (506) being arranged at intervals along the length direction of the water-passing cavity (501), and the first one-way conducting component (505), the second one-way conducting component (506) and the water-passing cavity (501) forming a sealed water-passing transit cavity; A water pressure chamber (503), the water pressure chamber (503) being in communication with the water transfer chamber, the water pressure chamber (503) being provided with a suction assembly (504), the suction assembly (504) being capable of sucking air in the water transfer chamber into the water pressure chamber (503) or of pressing air in the water pressure chamber (503) into the water transfer chamber; Wherein, the conduction direction of the first one-way conducting component (505) and the second one-way conducting component (506) is from the water inlet to the water outlet.

7. The shield slag discharge system according to claim 6, characterized in that: The first one-way conducting component (505) comprises: A first isolation plate (5051), the first isolation plate (5051) is sealedly connected to the inner wall of the water passage cavity (501), and a first water passage hole (5054) is provided on the first isolation plate (5051); a first isolating member (5052), the first isolating member (5052) being located in the water transfer cavity and being capable of blocking the first water passing hole (5054) along the length direction of the water passing cavity (501); A first elastic driving member (5053), the first elastic driving member (5053) is connected to the first isolation member (5052) and is relatively fixed to the water passage cavity (501); Wherein, the first isolating member (5052) blocks the first water passage hole (5054) under the elastic force of the first elastic driving member (5053).

8. The shield slag discharge system according to claim 7, characterized in that: The first isolating member (5052) is configured as a sphere; The first isolation plate (5051) is provided with a spherical protrusion that matches the shape of the first isolation member (5052), and the first water passage hole (5054) is located on the spherical protrusion.

9. The shield slag discharge system according to claim 6, characterized in that: The second one-way conducting component (506) comprises: A second isolation plate (5061), the second isolation plate (5061) is sealedly connected to the inner wall of the water passage cavity (501), and a second water passage hole (5064) is provided on the second isolation plate (5061); A second isolating member (5062), the second isolating member (5062) being located between the second isolating plate (5061) and the water outlet and being capable of blocking the second water hole (5064) along the length direction of the water cavity (501); A second elastic driving member (5063), the second elastic driving member (5063) is connected to the second isolation member (5062) and is relatively fixed to the water passage cavity (501); Wherein, the second isolating member (5062) blocks the second water passage hole (5064) under the elastic force of the second elastic driving member (5063).

10. The shield slag discharge system according to claim 9, characterized in that: The second isolating member (5062) is configured as a sphere; The second isolation plate (5061) is provided with a spherical protrusion that matches the shape of the second isolation member (5062), and the second water hole (5064) is located on the spherical protrusion.

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