An air cushion direct discharge dual-channel slag discharge mechanism

Abstract

The present invention discloses an air cushion direct discharge dual-channel slag discharge mechanism, which relates to the technical field of shield machine slag discharge, including a shield body, a U-shaped branch pipe equipped with a channel-changing slag discharge member, and a flow-increasing stirring member installed on the outer side of the driving disk. The present invention sets a channel-changing slag discharge member, and uses a mud pump to discharge the mud inside the mud and water bin through the U-shaped branch pipe. In this process, the filter plate is used to block the soil and rocks with larger diameters inside the mud and water bin, and at the same time, the second baffle plate blocks the bottom of the discharge pipe. After the mud inside the mud and water bin is discharged, the telescopic cylinder is started, and the first baffle plate blocks one end of the U-shaped branch pipe through the extension of the telescopic cylinder. At the same time, the bottom of the discharge pipe loses the shielding of the second baffle plate, and the motor is started to discharge the soil and rocks with larger diameters inside the mud and water bin through the slag discharge pipe, so as to prevent the pipeline from being blocked during the slag discharge process, thereby enhancing the slag discharge effect and further improving the slag discharge efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of shield machine slag discharge, in particular to an air cushion direct discharge double-channel slag discharge mechanism. Background Art

[0002] The shield machine, whose full name is shield tunnel boring machine, is a special engineering machinery for tunnel excavation. Modern shield tunnel boring machines integrate optical, mechanical, electrical, hydraulic, sensor and information technology. They have the functions of excavating and cutting soil, conveying soil ballast, assembling tunnel lining, measuring and guiding deviation correction, etc. They involve multiple disciplines and technologies such as geology, civil engineering, machinery, mechanics, hydraulics, electricity, control, and measurement. Moreover, they must be designed and manufactured in a "tailor-made" manner according to different geology, and the reliability requirements are extremely high. Shield tunnel boring machines are used in tunnel projects such as subways, railways, highways, municipal administration, and hydropower.

[0003] The slag discharge system in the shield machine is an important component, which directly affects whether the full-section tunnel boring machine can be used in some scenarios. The slurry shield uses bentonite suspension as a supporting material during the excavation process, and sends mud into the mud and water chamber to form an impermeable mud film on the excavation surface. The mud film balances the water and soil pressure acting on the excavation surface, and the excavated soil and sand are transported to the ground in the form of mud, separated by mud treatment equipment, and the separated mud and water are re-mixed and then transported to the excavation surface. During the excavation process, some larger mud blocks or some mud blocks fall into the mud and water chamber. If the clumped mud blocks are directly pumped into the pipeline, it is very easy to cause pipeline blockage, and it will also affect the slag discharge efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide an air cushion direct discharge dual-channel slag discharge mechanism in order to solve the problem that the slag discharge system has a single structure and has great limitations in slag discharge.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an air cushion direct discharge dual-channel slag discharge mechanism, comprising a shield body, a first partition is installed inside the shield body, a control system is installed on the first partition, a driving disc is arranged on the control system and is located on the side of the first partition away from the control system, a connecting seat is installed at one end of the driving disc, a cutter disc is installed on the connecting seat, a mud and water bin is formed between the cutter disc and the first partition, a second partition is installed inside the shield body and is located on the side of the first partition away from the cutter disc, an air cushion bin is formed between the second partition and the first partition, and a A drainage pipe is located above the control system and connected to an external mud processing device. A U-shaped branch is arranged on the first partition and is located below the control system and extends to the second partition away from the first partition. A slurry discharge pipe connected to the external mud processing device is installed at one end of the U-shaped branch away from the first partition. A second valve is installed on the slurry discharge pipe, and a first valve is installed on the drainage pipe. A flow exchange pipe is connected between the drainage pipe and the slurry discharge pipe, and a third valve is installed on the flow exchange pipe. A channel changing and slag discharge component is installed on the U-shaped branch, and a flow increasing and stirring component is installed on the outer side of the driving disk.

[0006] As a further solution of the present invention: the commutation tube is installed on a side of the first valve and the second valve away from the second partition.

[0007] As a further solution of the present invention: the channel changing slag discharge component includes a slag discharge pipe installed on one side of the first partition and extending to the second partition away from the first partition, the end of the slag discharge pipe away from the first partition is installed with a motor, the output end of the motor is connected with a spiral feeding rod extending to the inside of the slag discharge pipe, one end of the U-shaped branch is installed with a second baffle bin, the end of the second baffle bin away from the U-shaped branch is installed with a filter plate, the interior of the second baffle bin is slidably connected with a first baffle plate, the first baffle plate is installed with a second plug plate extending to the outside of the second baffle bin, the top of the second plug plate is installed with a connecting plate, the outer wall of the second baffle bin is installed with a first piston sleeve, the interior of the first piston sleeve is plugged with a plug extending to the top of the first piston sleeve The cam is an airtight container which is provided to hold the cylinder in place and the control panel is provided with a second piston sleeve which is located below the airtight container. The cam is provided with a first piston sleeve which is connected to the cylinder and extends to the outside of the second piston sleeve. The cam is provided with a second piston sleeve which is connected to the output end of the airtight container. A connecting pipe which is connected to the second piston sleeve is provided at the bottom of the first piston sleeve. A discharge pipe is provided at the bottom of the slag discharge pipe which is close to the motor. A first blocking bin is provided at the bottom of the discharge pipe. A second baffle plate is movably connected to the interior of the first blocking bin. A first plug plate which extends to the outside of the first blocking bin is provided on the second baffle plate. A connecting frame which is connected to the first piston rod is provided at one end of the first plug plate which is away from the second baffle plate.

[0008] As a further solution of the present invention: the internal space of the second piston sleeve is twice the internal space of the first piston sleeve, and the first piston sleeves at both ends of the U-shaped branch pipe are connected by a connecting plate.

[0009] As a further solution of the present invention: the second baffle is equal to the inner wall of the discharge pipe in diameter.

[0010] As a further solution of the present invention: the slag discharge pipe is arranged to be inclined relative to the drainage pipe, and the horizontal height of the slag discharge pipe at one end close to the motor is greater than the horizontal height of the slag discharge pipe at one end away from the motor.

[0011] As a further solution of the present invention: the flow-increasing stirring member includes an annular bin installed on the first partition plate and connected to the driving disk, a spur gear ring located on the inner side of the annular bin is arranged on the outer side of the driving disk, a side-connected bin is installed on the outer wall of the annular bin, a protective cover is installed on the side of the side-connected bin close to the connecting seat, the interior of the side-connected bin is rotatably connected to a support guide rod extending to the interior of the protective cover through a bearing, a second transmission bevel gear is installed at one end of the support guide rod away from the side-connected bin, a transmission spur gear located on the inner side of the side-connected bin and meshing with the spur gear ring is installed on the support guide rod, the interior of the protective cover is rotatably connected to a stirring rod extending to the outside of the protective cover through a bearing, and a first transmission bevel gear meshing with the second transmission bevel gear is installed at one end of the stirring rod.

[0012] As a further solution of the present invention: the number of the side-connected bins is two, and the two side-connected bins are symmetrically arranged along the vertical center axis of the annular bin.

[0013] As a further solution of the present invention: a sealing ring is provided at the connection between the inner wall of the annular bin and the driving disc.

[0014] As a further solution of the present invention: the width of the stirring rod is smaller than the distance between the first partition plate and the blade disc.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By setting a channel-changing slag discharge part, the mud inside the mud and water bin is discharged through the U-shaped branch pipe through the mud pump. In this process, the soil and rocks with larger diameters inside the mud and water bin are blocked by the filter plate, and the second baffle plate blocks the bottom of the discharge pipe. After the mud inside the mud and water bin is discharged, the telescopic cylinder is started. The first baffle plate blocks one end of the U-shaped branch pipe through the extension of the telescopic cylinder. At the same time, the bottom of the discharge pipe loses the shielding of the second baffle plate, and the motor is started. At this time, the spiral feeding rod will rotate with the operation of the motor, so that the soil and rocks with larger diameters inside the mud and water bin can be discharged from the mud and water bin through the slag discharge pipe, preventing the pipeline from being blocked during the slag discharge process, thereby enhancing the slag discharge effect and further improving the slag discharge efficiency;

[0017] 2. By setting a flow-increasing stirring member, when the driving disc rotates, it will drive the spur gear ring to rotate, and the transmission spur gear will rotate along with the spur gear ring. When the transmission spur gear rotates, it will drive the stirring rod to rotate through the supporting guide rod, the second transmission bevel gear, and the first transmission bevel gear, so that the stirring rod can stir and mix the mud and water inside the mud and water bin. This not only improves the mixing efficiency of the mud and water, but also enables the stirring rod to stir the lumps of mud to reduce the diameter of the lumped mud. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the connection between the slurry discharge pipe and the first partition plate of the present invention;

[0020] Figure 3 It is a schematic diagram of the connection between the drainage pipe and the slurry discharge pipe of the present invention;

[0021] Figure 4 It is a schematic diagram of the connection between the first barrier compartment and the second barrier compartment of the present invention;

[0022] Figure 5 This is a schematic diagram of the internal structure of the second barrier compartment of the present invention;

[0023] Figure 6 This is a schematic diagram of the internal structure of the first barrier compartment of the present invention;

[0024] Figure 7 It is a schematic diagram of the connection between the driving disc and the stirring rod of the present invention;

[0025] Figure 8 It is a schematic diagram of the internal structure of the side-connected warehouse of the present invention.

[0026] In the figure: 1, shield; 2, cutter head; 3, control system; 4, drainage pipe; 501, first valve; 502, slurry discharge pipe; 503, second valve; 504, exchange pipe; 505, U-shaped branch pipe; 506, air cushion bin; 507, spiral feeding rod; 508, connecting seat; 509, drive plate; 510, mud and water bin; 511, telescopic cylinder; 512, discharge pipe; 513, first barrier bin; 514, first baffle; 515, filter plate; 516, annular bin; 517, first baffle; 518, second barrier bin; 519, first piston sleeve Tube; 520, motor; 521, second piston sleeve; 522, connecting pipe; 523, first piston rod; 524, second partition; 525, first plug plate; 526, connecting plate; 527, connecting frame; 528, second piston rod; 529, second plug plate; 530, second baffle; 531, side connecting bin; 532, stirring rod; 533, spur gear ring; 534, transmission spur gear; 535, supporting guide rod; 536, protective cover; 537, first transmission bevel gear; 538, second transmission bevel gear; 539, third valve; 540, slag discharge pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" 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 the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of its embodiments based on the overall structure of the present invention.

[0029] See also Figures 1 to 8 In an embodiment of the present invention, an air cushion direct discharge dual-channel slag discharge mechanism includes a shield body 1, a first baffle 514 is installed inside the shield body 1, a control system 3 is installed on the first baffle 514, a driving disc 509 is arranged on the control system 3 and located on the side of the first baffle 514 away from the control system 3, a connecting seat 508 is installed at one end of the driving disc 509, a cutter disc 2 is installed on the connecting seat 508, a mud and water bin 510 is formed between the cutter disc 2 and the first baffle 514, a second baffle 524 is installed inside the shield body 1 and located on the side of the first baffle 514 away from the cutter disc 2, an air cushion bin 506 is formed between the second baffle 524 and the first baffle 514, and a control system 3 is arranged on the first baffle 514. A drainage pipe 4 is above the control system 3 and connected to the external mud treatment equipment. A U-shaped branch pipe 505 is arranged on the first partition 514 and is located below the control system 3 and extends to the second partition 524 away from the first partition 514. A slurry discharge pipe 502 connected to the external mud treatment equipment is installed at one end of the U-shaped branch pipe 505 away from the first partition 514. A second valve 503 is installed on the slurry discharge pipe 502. A first valve 501 is installed on the drainage pipe 4. A flow exchange pipe 504 is connected between the drainage pipe 4 and the slurry discharge pipe 502. A third valve 539 is installed on the flow exchange pipe 504. A channel changing and slag discharge component is installed on the U-shaped branch pipe 505. A flow increasing and stirring component is installed on the outer side of the driving disk 509.

[0030] In this embodiment, when the control system 3 drives the cutter disc 2 to rotate through the drive disc 509, the soil and rocks generated by the cutter disc 2 during the excavation process will fall into the mud and water bin 510. At this time, the bentonite suspension is filled into the mud and water bin 510 through the drainage pipe 4. In this process, the mixing effect of the soil and the bentonite suspension is improved by the flow-increasing stirring member. Then, the mud inside the mud and water bin 510 is discharged into the mud treatment equipment through the U-shaped branch pipe 505 through the operation of the external mud pump. The mud and water are separated by the mud treatment equipment. Then, the aqueous solution will enter the mud and water bin 510 again through the drainage pipe 4, and the soil and rocks with larger diameters located inside the mud and water bin 510 will remain in the mud and water bin 510. Then, the soil and rocks with larger diameters are discharged from the mud and water bin 510 through the operation of the slag discharge member.

[0031] Please refer to Figure 1 , Figure 2 The converter tube 504 is installed on the side of the first valve 501 and the second valve 503 away from the second partition plate 524.

[0032] In this embodiment, by setting this structure to reduce the amount of mud discharged from the slurry discharge pipe 502, the first valve 501 and the second valve 503 are closed, and the third valve 539 is opened at the same time, so that the aqueous solution is directly discharged into the slurry discharge pipe 502 through the exchange tube 504, so that the aqueous solution discharged from the drainage pipe 4 can flush the inside of the slurry discharge pipe 502, thereby cleaning the inside of the slurry discharge pipe 502.

[0033] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The slag-discharging member for changing lanes includes a slag-discharging pipe 540 installed on one side of the first baffle plate 514 and extending to the second baffle plate 524 away from the first baffle plate 514. A motor 520 is installed at one end of the slag-discharging pipe 540 away from the first baffle plate 514. The output end of the motor 520 is connected to a spiral feeding rod 507 extending to the inside of the slag-discharging pipe 540. A second blocking bin 518 is installed at one end of the U-shaped branch pipe 505. A filter plate 515 is installed at one end of the second blocking bin 518 away from the U-shaped branch pipe 505. The interior of the second blocking bin 518 is slidably connected with a first baffle plate 517. A second plug plate 529 extending to the outside of the second blocking bin 518 is installed on the first baffle plate 517. A connecting plate 526 is installed on the top of the second plug plate 529. A first piston sleeve 519 is installed on the outer wall of the second blocking bin 518. A plug extending to the top of the first piston sleeve 519 and connected to the connecting plate 526 is inserted into the interior of the first piston sleeve 519. A second piston rod 528 is connected, a telescopic cylinder 511 is installed on the control system 3, a second piston sleeve 521 located below the telescopic cylinder 511 is installed on the control system 3, a first piston rod 523 extending to the outside of the second piston sleeve 521 and connected to the output end of the telescopic cylinder 511 is inserted inside the second piston sleeve 521, a connecting pipe 522 connected to the second piston sleeve 521 is arranged at the bottom of the first piston sleeve 519, a discharge pipe 512 is installed at the bottom of one end of the slag discharge pipe 540 close to the motor 520, a first blocking bin 513 is installed at the bottom of the discharge pipe 512, a second baffle plate 530 is movably connected inside the first baffle plate 513, a first plug plate 525 extending to the outside of the first baffle plate 513 is installed on the second baffle plate 530, and a connecting frame 527 connected to the first piston rod 523 is installed at one end of the first plug plate 525 away from the second baffle plate 530.

[0034] In this embodiment, when the mud inside the mud and water bin 510 is discharged, the mud inside the mud and water bin 510 is discharged through the U-shaped branch pipe 505 through the mud pump. In this process, the soil and rocks with larger diameters inside the mud and water bin 510 are blocked by the filter plate 515 to prevent the soil and rocks with larger diameters from entering the U-shaped branch pipe 505. At the same time, the second baffle plate 530 blocks the bottom of the discharge pipe 512 to prevent the mud from being discharged through the slag discharge pipe 540. After the mud inside the mud and water bin 510 is discharged, the telescopic cylinder 511 is started, and the first piston rod 523 is moved in a direction away from the second piston sleeve 521 by the extension of the telescopic cylinder 511, so that the aqueous solution inside the first piston sleeve 519 passes through the connecting pipe under the action of negative pressure. 522 flows into the second piston sleeve 521, so that the second piston rod 528 drives the second plug plate 529 to move downward through the connecting plate 526, so that the first baffle plate 517 blocks one end of the U-shaped branch pipe 505, and at the same time, the second baffle plate 530 moves in the direction away from the first baffle bin 513 as the telescopic cylinder 511 extends, so that the bottom of the discharge pipe 512 loses the shielding of the second baffle plate 530, and the motor 520 is started. At this time, the spiral feeding rod 507 will rotate with the operation of the motor 520, so that the larger diameter soil and stone blocks inside the mud and water bin 510 are discharged from the mud and water bin 510 through the slag discharge pipe 540, to prevent the pipeline from being blocked during the slag discharge process, thereby enhancing the slag discharge effect and further improving the slag discharge efficiency.

[0035] Please refer to Figure 3 , Figure 4 The internal space of the second piston sleeve 521 is twice the internal space of the first piston sleeve 519 , and the first piston sleeves 519 at both ends of the U-shaped branch pipe 505 are connected via a connecting plate 526 .

[0036] In this embodiment, by providing this structure, the first piston sleeves 519 at both ends of the U-shaped branch pipe 505 can move synchronously when the first piston rod 523 moves.

[0037] Please refer to Figure 6 The second baffle 530 has the same diameter as the inner wall of the discharge pipe 512 .

[0038] In this embodiment, this structure is provided to improve the sealing performance of the second spoiler 530 on the discharge pipe 512 , thereby preventing muddy water from being discharged through the discharge pipe 512 .

[0039] Please refer to Figure 2 , Figure 3 The slag discharge pipe 540 is inclined relative to the drainage pipe 4 , and the horizontal height of the slag discharge pipe 540 close to the motor 520 is greater than the horizontal height of the slag discharge pipe 540 away from the motor 520 .

[0040] In this embodiment, by providing this structure, the muddy water entering the slag discharge pipe 540 flows into the muddy water bin 510 under the action of gravity, thereby preventing muddy water from remaining in the slag discharge pipe 540 .

[0041] Please refer to Figure 2 , Figure 7 , Figure 8 The flow-increasing stirring member includes an annular bin 516 installed on the first baffle plate 514 and connected to the driving disk 509, a spur gear ring 533 located on the inner side of the annular bin 516 is arranged on the outer side of the driving disk 509, a side connecting bin 531 is installed on the outer wall of the annular bin 516, a protective cover 536 is installed on the side of the side connecting bin 531 close to the connecting seat 508, the interior of the side connecting bin 531 is rotatably connected to a support guide rod 535 extending to the interior of the protective cover 536 through a bearing, a second transmission bevel gear 538 is installed at one end of the support guide rod 535 away from the side connecting bin 531, a transmission spur gear 534 located on the inner side of the side connecting bin 531 and meshing with the spur gear ring 533 is installed on the support guide rod 535, a stirring rod 532 extending to the outer side of the protective cover 536 is rotatably connected to the interior of the protective cover 536 through a bearing, and a first transmission bevel gear 537 meshing with the second transmission bevel gear 538 is installed at one end of the stirring rod 532.

[0042] In this embodiment, when the driving disk 509 rotates, it will drive the spur gear ring 533 to rotate. At this time, the transmission spur gear 534 will rotate along with the spur gear ring 533. When the transmission spur gear 534 rotates, it will drive the stirring rod 532 to rotate through the supporting guide rod 535, the second transmission bevel gear 538, and the first transmission bevel gear 537, so that the stirring rod 532 stirs and mixes the mud and water inside the mud and water bin 510. This not only improves the mixing efficiency of the mud and water, but also enables the stirring rod 532 to stir the lumps of mud to reduce the diameter of the lumped mud.

[0043] Please refer to Figure 7 , Figure 8 There are two side-connected bins 531 , and the two side-connected bins 531 are symmetrically arranged along the vertical center axis of the annular bin 516 .

[0044] In this embodiment, by providing this structure, the stirring rod 532 can stir the muddy water at different positions.

[0045] Please refer to Figure 7 , Figure 8 A sealing ring is provided at the connection between the inner wall of the annular bin 516 and the driving disk 509 .

[0046] In this embodiment, this structure is provided to prevent muddy water from entering the interior of the annular bin 516 .

[0047] Please refer to Figure 1 , Figure 7 , Figure 8 , the width of the stirring rod 532 is smaller than the distance between the first partition plate 514 and the blade disc 2.

[0048] In this embodiment, this structure is provided to prevent the first partition plate 514 from colliding with the first partition plate 514 or the cutter disc 2 during the rotation process, thereby further improving the smoothness of the rotation of the first partition plate 514.

[0049] What has been described above are only preferred specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An air cushion direct discharge dual-channel slag discharge mechanism, comprising a shield body (1), characterized in that: A first baffle (514) is installed inside the shield body (1), a control system (3) is installed on the first baffle (514), a drive disc (509) is provided on the control system (3) and is located on a side of the first baffle (514) away from the control system (3), a connecting seat (508) is installed at one end of the drive disc (509), a cutter disc (2) is installed on the connecting seat (508), a mud and water bin (510) is formed between the cutter disc (2) and the first baffle (514), a second baffle (524) is installed inside the shield body (1) and is located on a side of the first baffle (514) away from the cutter disc (2), an air cushion bin (506) is formed between the second baffle (524) and the first baffle (514), and a mud and water bin (510) is provided on the first baffle (514) and is located above the control system (3) and connected to an external mud and water bin (510). a drainage pipe (4) connected to a processing device, the first baffle (514) being provided with a U-shaped branch pipe (505) located below the control system (3) and extending to the second baffle (524) away from the first baffle (514); a slurry discharge pipe (502) connected to an external slurry treatment device is installed at one end of the U-shaped branch pipe (505) away from the first baffle (514); a second valve (503) is installed on the slurry discharge pipe (502); a first valve (501) is installed on the drainage pipe (4); a flow change pipe (504) is connected between the drainage pipe (4) and the slurry discharge pipe (502); a third valve (539) is installed on the flow change pipe (504); a channel change and slag discharge component is installed on the U-shaped branch pipe (505); and a flow increasing and stirring component is installed on the outer side of the driving disc (509); The lane-changing slag discharge component comprises a slag discharge pipe (540) installed on one side of the first partition (514) and extending to the second partition (524) away from the first partition (514); a motor (520) is installed at one end of the slag discharge pipe (540) away from the first partition (514); an output end of the motor (520) is connected to a spiral feeding rod (507) extending into the slag discharge pipe (540); a second blocking chamber (518) is installed at one end of the U-shaped branch pipe (505); and a second blocking chamber (518) is installed at one end of the U-shaped branch pipe (505). A filter plate (515) is installed at the end of the second barrier chamber (518); the interior of the second barrier chamber (518) is slidably connected to the first baffle plate (517); the first baffle plate (517) is installed with a second plug plate (529) extending to the outside of the second barrier chamber (518); the top of the second plug plate (529) is installed with a connecting plate (526); the outer wall of the second barrier chamber (518) is installed with a first piston sleeve (519); the interior of the first piston sleeve (519) is plugged with a second piston sleeve (526) extending to the top of the first piston sleeve (519) and connected to the connecting plate (526). The control system (3) is provided with a second piston rod (528), a telescopic cylinder (511) is installed on the control system (3), a second piston sleeve (521) is installed on the control system (3) and is located below the telescopic cylinder (511), a first piston rod (523) extending to the outside of the second piston sleeve (521) and connected to the output end of the telescopic cylinder (511) is inserted into the interior of the second piston sleeve (521), and a connecting pipe (522) connected to the second piston sleeve (521) is provided at the bottom of the first piston sleeve (519). ), a discharge pipe (512) is installed at the bottom of one end of the slag discharge pipe (540) close to the motor (520), a first blocking chamber (513) is installed at the bottom of the discharge pipe (512), a second baffle plate (530) is movably connected inside the first baffle plate (513), a first plug plate (525) extending to the outside of the first baffle plate (513) is installed on the second baffle plate (530), and a connecting frame (527) connected to the first piston rod (523) is installed at one end of the first plug plate (525) away from the second baffle plate (530); The internal space of the second piston sleeve (521) is twice the internal space of the first piston sleeve (519), and the first piston sleeves (519) at both ends of the U-shaped branch pipe (505) are connected via a connecting plate (526); The slag discharge pipe (540) is arranged obliquely relative to the drainage pipe (4), and the horizontal height of the end of the slag discharge pipe (540) close to the motor (520) is greater than the horizontal height of the end of the slag discharge pipe (540) far from the motor (520).

2. The air cushion direct discharge dual-channel slag discharge mechanism according to claim 1, characterized in that: The exchange tube (504) is installed on a side of the first valve (501) and the second valve (503) away from the second partition plate (524).

3. The air cushion direct discharge dual-channel slag discharge mechanism according to claim 1, characterized in that: The second baffle (530) has the same diameter as the inner wall of the discharge pipe (512).

4. The air cushion direct discharge dual-channel slag discharge mechanism according to claim 1, characterized in that: The flow-increasing stirring member comprises an annular bin (516) mounted on a first baffle (514) and connected to a driving disk (509); a spur gear ring (533) located inside the annular bin (516) is arranged on the outer side of the driving disk (509); a side connecting bin (531) is mounted on the outer wall of the annular bin (516); a protective cover (536) is mounted on a side of the side connecting bin (531) close to the connecting seat (508); a supporting guide rod (536) extending to the inside of the protective cover (536) is rotatably connected to the inside of the side connecting bin (531) via a bearing. 5), a second transmission bevel gear (538) is mounted on one end of the support guide rod (535) away from the side connection bin (531), a transmission spur gear (534) located inside the side connection bin (531) and meshing with the spur gear ring (533) is mounted on the support guide rod (535), a stirring rod (532) extending to the outside of the protective cover (536) is rotatably connected to the inside of the protective cover (536) via a bearing, and a first transmission bevel gear (537) meshing with the second transmission bevel gear (538) is mounted on one end of the stirring rod (532).

5. The air cushion direct discharge dual-channel slag discharge mechanism according to claim 4, characterized in that: The number of the side-connected bins (531) is two, and the two side-connected bins (531) are symmetrically arranged along the vertical center axis of the annular bin (516).

6. The air cushion direct discharge dual-channel slag discharge mechanism according to claim 4, characterized in that: A sealing ring is provided at the connection between the inner wall of the annular bin (516) and the driving disc (509).

7. The air cushion direct discharge dual-channel slag discharge mechanism according to claim 4, characterized in that: The width of the stirring rod (532) is smaller than the distance between the first partition plate (514) and the blade disc (2).

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