Shaft slagging sealing door

Abstract

The application discloses a vertical shaft slagging sealing door and relates to the technical field of vertical shaft construction. The vertical shaft slagging sealing door comprises a slagging transition section, the slagging transition section is internally provided with a transition section channel, the inner wall of the transition section channel is provided with an annular mounting groove, a sealing plate which is used for covering the transition section channel and reciprocally moves along the horizontal direction is slidably connected in the mounting groove, the bottom wall or / and the top wall of the mounting groove is provided with an annular first sealing structure which is in sealing cooperation with the surface of the sealing plate; one end of the sealing plate along the moving direction of the sealing plate penetrates through the slagging transition section and is connected with a driving mechanism, the slagging transition section is provided with a penetration opening through which the sealing plate penetrates, and the penetration opening is provided with a second sealing structure which is in sealing cooperation with the sealing plate. The application adopts the horizontally-sliding sealing plate, and the driving mechanism is arranged outside the slagging transition section, so that the effective sectional area of the slagging channel is maximized, and a smoother channel is provided for the transportation of the slag during the vertical shaft construction process.

Description

Technical Field

[0001] This application relates to the field of shaft construction technology, specifically to a shaft slag discharge sealing door. Background Technology

[0002] Vertical shafts are important well-shaped passages in underground engineering. With upright walls, they primarily connect the surface and underground spaces, enabling the vertical transport of personnel, equipment, and materials, as well as ventilation and drainage. In shaft construction, the pneumatic caisson method is a common construction technique. This method involves installing a sealed cover at the bottom of the shaft, forming an airtight chamber with the cover, shaft walls, and excavation face. By inflating the chamber, air pressure is used to expel groundwater from the shaft to the surrounding rock strata, creating a dry working environment within the chamber, facilitating excavation of the soil and rock within the shaft.

[0003] Above the sealing cover is a standard muck discharge section, which contains a vertically arranged muck discharge channel connected to the airtight chamber. After the soil and rock inside the shaft are excavated, the muck discharge mechanism transports the excavated soil to the outside of the shaft through the muck discharge channel. As the shaft is gradually extended, the muck discharge channel also needs to be extended accordingly. The specific operation involves first temporarily sealing the muck discharge channel inside the standard muck discharge section to prevent air leakage from the airtight chamber, then installing the standard muck discharge section to extend the muck discharge channel, and finally reopening the muck discharge channel after installation to resume normal muck discharge operations.

[0004] Currently, the industry typically uses a structure where a hydraulic double-door is installed in the lowest slag discharge standard section. A hydraulic mechanism allows the double doors to flip up and down, thus opening and closing the slag discharge channel. However, this structure has the following problems: the hydraulic double doors occupy part of the slag discharge channel space, reducing the effective cross-sectional area of ​​the channel and consequently affecting slag discharge efficiency. Utility Model Content

[0005] The purpose of this application is to provide a vertical shaft slag discharge sealing door to solve the problem that the existing hydraulic double-door structure occupies part of the slag discharge channel, resulting in a reduction in the effective cross-sectional area of ​​the slag discharge channel.

[0006] The technical solution adopted by this application to solve its technical problem is:

[0007] A vertical shaft slag discharge sealing door includes a vertically arranged slag discharge transition section. The slag discharge transition section has a transition section channel with openings at the top and bottom. The inner wall of the transition section channel is provided with an annular mounting groove. A sealing plate that moves reciprocally in the horizontal direction and is used to cover the transition section channel is slidably connected in the mounting groove. The bottom wall and / or top wall of the mounting groove is provided with an annular first sealing structure that seals with the surface of the sealing plate.

[0008] One end of the sealing plate along its moving direction passes through the slag discharge transition section and is connected to the drive mechanism located outside the slag discharge transition section. The slag discharge transition section is provided with a through-hole for the sealing plate to pass through, and the through-hole is provided with a second sealing structure that seals with the sealing plate.

[0009] Furthermore, the sealing plate includes two, which are arranged opposite to each other along their moving direction. A third sealing structure is provided between the two sealing plates. The slag discharge transition section has two oppositely arranged through holes. The two sealing plates pass through the two through holes and are respectively connected to the two driving mechanisms.

[0010] Furthermore, the third sealing structure includes a third sealing strip disposed between the two sealing plates and connected to the end face of one of the sealing plates.

[0011] Furthermore, the third sealing strip has a positioning protrusion on the side facing the other sealing plate, and the end face of the other sealing plate is provided with a positioning groove that seals with the positioning protrusion.

[0012] Furthermore, the sealing plate has a first limiting part on the surface of the end away from the driving mechanism, and the mounting groove has a second limiting part on the end near the driving mechanism that cooperates with the first limiting part.

[0013] Furthermore, the driving mechanism includes a driving cylinder arranged parallel to the moving direction of the sealing plate, the piston rod of the driving cylinder being connected to the sealing plate, and the cylinder body of the driving cylinder being connected to the support base.

[0014] Furthermore, the first sealing structure includes an annular first fixing seat installed on the bottom wall and / or top wall of the mounting groove, and an annular first sealing gasket arranged concentrically connected to the first fixing seat, the first sealing gasket sealingly engaging with the surface of the sealing plate.

[0015] Furthermore, the second sealing structure includes a second sealing gasket fitted on the sealing plate and sealingly fitted to the outer surface of the sealing plate, the second sealing gasket being pressed against the end face of the through opening by a second pressure plate.

[0016] Furthermore, the end face of the through-hole is provided with a second groove, and the second sealing gasket is disposed in the second groove.

[0017] Furthermore, the mounting groove is connected to two parallel guide rails, which are respectively located on both sides of the sealing plate. Each side of the sealing plate is connected to a slider that slides with the two guide rails.

[0018] The beneficial effects of this application are:

[0019] The vertical shaft slag discharge sealing door provided in this application embodiment is used to be installed between two adjacent slag discharge standard sections to realize the opening and closing of the slag discharge channel. This application maximizes the effective cross-sectional area of ​​the slag discharge channel by using a horizontally sliding sealing plate and placing the drive mechanism outside the slag discharge transition section. This provides a smoother channel for the transportation of slag and soil during vertical shaft construction, improves slag discharge efficiency, and solves the problem that existing hydraulic double-opening doors occupy part of the slag discharge channel space, resulting in a reduction in the effective cross-sectional area of ​​the slag discharge channel. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the vertical shaft slag discharge sealing door provided in the embodiments of this application;

[0022] Figure 2 This is a front view of the vertical shaft slag discharge sealing door provided in the embodiments of this application;

[0023] Figure 3 This is a side view of the vertical shaft slag discharge sealing door provided in the embodiment of this application;

[0024] Figure 4 yes Figure 2 A sectional view along line AA.

[0025] Figure 5 yes Figure 4 Enlarged view of section A in the middle;

[0026] Figure 6 yes Figure 3 Sectional view along the BB line;

[0027] Figure 7 yes Figure 6 Enlarged view of section B in the middle;

[0028] Figure 8 yes Figure 6 Enlarged view of section C;

[0029] Figure 9 yes Figure 8 Enlarged view of section D;

[0030] Figure 10 This is a diagram showing the state of the slag discharge channel before its extension.

[0031] Figure 11 This is a state diagram of the extended slag discharge channel;

[0032] Figure 12 This is a diagram showing the state of the extended slag discharge channel.

[0033] Figure label:

[0034] 1-Vertical shaft slag discharge sealing door;

[0035] 10-Slag removal transition section;

[0036] 101-Transition section channel; 102-Mounting groove; 103-Through opening; 104-Second groove; 105-Guide rail; 106-Slider;

[0037] 20-Sealing plate;

[0038] 201 - Positioning groove; 202 - First limiting part; 203 - Second limiting part;

[0039] 30 - First sealing structure;

[0040] 301 - First fixing seat; 302 - First sealing gasket;

[0041] 40 - Drive mechanism;

[0042] 401 - Drive cylinder; 402 - Support base;

[0043] 50 - Second sealing structure;

[0044] 501 - Second sealing gasket; 502 - Second pressure plate;

[0045] 60 - Third sealing structure;

[0046] 601 - Third sealing strip; 602 - Positioning ridge;

[0047] 70 - Shaft; 80 - Sealed cover; 81 - Excavation face; 82 - Airtight chamber; 90 - Standard section for slag removal. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0049] In the description of this application, the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in actual application, provided that the relative positional relationships shown in the accompanying drawings are satisfied.

[0050] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0051] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 This application provides a vertical shaft slag discharge sealing door 1, including a vertically arranged slag discharge transition section 10. The slag discharge transition section 10 has a transition section channel 101 with openings at the top and bottom. The inner wall of the transition section channel 101 is provided with an annular mounting groove 102. A sealing plate 20 that moves reciprocally in the horizontal direction and is used to cover the transition section channel 101 is slidably connected in the mounting groove 102. The bottom wall and / or top wall of the mounting groove 102 is provided with an annular first sealing structure 30 that seals with the surface of the sealing plate 20. One end of the sealing plate 20 along its moving direction passes through the slag discharge transition section 10 and is connected to a drive mechanism 40 located outside the slag discharge transition section 10. The slag discharge transition section 10 is provided with a through opening 103 for the sealing plate 20 to pass through. The through opening 103 is provided with a second sealing structure 50 that seals with the sealing plate 20.

[0052] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6The slag discharge transition section 10 is vertically arranged and has a transition section channel 101 with openings at the top and bottom. The shape and size of the transition section channel 101 are consistent with the shape and size of the slag discharge channel inside the standard slag discharge section. Of course, the size of the transition section channel 101 can also be larger than the size of the slag discharge channel inside the standard slag discharge section. The slag discharge transition section 10 is used for sealing installation between adjacent standard slag discharge sections, and the transition section channel 101 connects the upper and lower slag discharge channels. The inner wall of the transition section channel 101 is provided with a ring-shaped mounting groove 102, which is used for installing and sliding the sealing plate 20.

[0053] For example, the slag discharge transition section 10 includes an upper section, a middle section, and a lower section that are sequentially and sealed from top to bottom. The upper, middle, and lower sections are all rectangular annular structures with openings at the top and bottom, respectively. An mounting groove 102 is formed between the bottom surface of the upper section, the side surface of the middle section, and the top surface of the lower section. The mounting groove 102 is also rectangular annular. The upper, middle, and lower sections can all be welded from steel plates and connected together by bolts, washers, or other fastening and sealing structures. Of course, in other embodiments, the slag discharge transition section 10 can also be directly a slag discharge standard section or a part of a slag discharge standard section.

[0054] See Figure 1 , Figure 4 , Figure 6 The sealing plate 20 is a horizontally positioned rectangular metal plate. The size of the sealing plate 20 is larger than the size of the transition channel 101 and completely covers the transition channel 101. Both sides of the sealing plate 20 are slidably connected to the mounting groove 102 via sliding structures, allowing the sealing plate 20 to reciprocate horizontally. The surface of the sealing plate 20 is precision-machined, exhibiting high flatness and smoothness to ensure a tight seal with the first sealing structure 30 and the second sealing structure 50.

[0055] See Figure 1 , Figure 4 , Figure 6 The first sealing structure 30 is a rectangular annular structure, which can be installed on the bottom wall of the mounting groove 102, the top wall of the mounting groove 102, or both the bottom and top walls of the mounting groove 102, for sealing mating with the surface of the sealing plate 20. The maximum size of the first sealing structure 30 is smaller than the size of the sealing plate 20, allowing the first sealing structure 30 to fully and tightly fit the surface of the sealing plate 20.

[0056] See Figure 1 , Figure 2 , Figure 3The slag discharge transition section 10 is provided with a through-hole 103, the size of which matches the thickness and width of the sealing plate 20, for the sealing plate 20 to pass through and move. One end of the sealing plate 20 along its moving direction can pass through the through-hole 103 and extend to the outside of the slag discharge transition section 10, and the sealing plate 20 can reciprocate within the through-hole 103. The through-hole 103 is provided with a second sealing structure 50 that seals with the sealing plate 20 to prevent gas leakage from the through-hole 103. The drive mechanism 40 is located outside the slag discharge transition section 10 and connected to one end of the sealing plate 20. The drive mechanism 40 drives the sealing plate 20 to reciprocate in the horizontal direction, thereby opening and closing the transition section channel 101.

[0057] The vertical shaft slag discharge sealing door 1 provided in this embodiment is used to be installed between two adjacent slag discharge standard sections to realize the opening and closing of the slag discharge channel. The specific operation process is as follows: When it is necessary to close the slag discharge channel, the operator controls the drive mechanism 40 to drive the sealing plate 20 to move horizontally into the slag discharge transition section 10 until the sealing plate 20 completely covers the transition section channel 101. At this time, the surface of the sealing plate 20 is completely and tightly fitted with the first sealing structure 30 to form a seal, thereby realizing the closure of the slag discharge channel. When it is necessary to open the slag discharge channel, the operator controls the drive mechanism 40 to drive the sealing plate 20 to move horizontally outward from the slag discharge transition section 10 until the sealing plate 20 is completely moved to one side of the transition section channel 101, thereby restoring the unobstructed flow of the slag discharge channel.

[0058] The vertical shaft slag discharge sealing door provided in this application embodiment uses a horizontally sliding sealing plate 20 and sets the drive mechanism 40 outside the slag discharge transition section 10, so that the effective cross-sectional area of ​​the slag discharge channel is maximized, providing a smoother channel for the transportation of slag and soil during the vertical shaft construction process, improving slag discharge efficiency, and solving the problem that the existing hydraulic double-opening door occupies part of the slag discharge channel space, resulting in a reduction in the effective cross-sectional area of ​​the slag discharge channel.

[0059] In some embodiments, see Figure 1 , Figure 2 , Figure 6 The sealing plate 20 includes two, which are arranged opposite to each other along their moving direction. A third sealing structure 60 is provided between the two sealing plates 20. The slag discharge transition section 10 has two through holes 103 arranged opposite to each other. The two sealing plates 20 pass through the two through holes 103 respectively and are connected to the two driving mechanisms 40 respectively.

[0060] Both sealing plates 20 are rectangular metal plates, and are arranged opposite each other along their moving direction. The size of the two sealing plates 20 after being spliced ​​together can completely cover the transition section channel 101. When the two sealing plates 20 are spliced ​​together, their end faces are sealed together by a third sealing structure 60 to prevent gas from leaking from the gap between the two sealing plates 20.

[0061] In actual use, when it is necessary to close the slag discharge channel, the operator controls the two drive mechanisms 40 to drive the two sealing plates 20 to move closer to each other in the horizontal direction until the two sealing plates 20 are joined together and completely cover the transition section channel 101. At this time, the two sealing plates 20 are sealed together by the third sealing structure 60, and the surfaces of the two sealing plates 20 are completely and tightly attached to the first sealing structure 30 to form a seal, thereby closing the slag discharge channel. When it is necessary to open the slag discharge channel, the operator controls the two drive mechanisms 40 to drive the two sealing plates 20 to move away from each other in the horizontal direction until the two sealing plates 20 are completely moved to both sides of the transition section channel 101, thereby restoring the smooth flow of the slag discharge channel.

[0062] This embodiment achieves the opening and closing of the slag discharge channel by setting two sealing plates 20 in cooperation, and is equipped with two independent drive mechanisms 40 to drive the two sealing plates 20 to reciprocate, which can significantly reduce the stroke requirement of a single drive mechanism 40 and effectively reduce the overall size and cost of the equipment.

[0063] In some embodiments, see Figure 6 , Figure 7 The third sealing structure 60 includes a third sealing strip 601 disposed between the two sealing plates 20 and connected to the end face of one of the sealing plates 20.

[0064] Specifically, the third sealing strip 601 can be a rectangular rubber sealing strip, the length of which matches the length of the end face of the sealing plate 20. The third sealing strip 601 can be fixedly connected to the end face of the sealing plate 20 by means of adhesive, bolts, or snap-fit. When the two sealing plates 20 move relative to each other and close, the third sealing strip 601 can fit tightly against the end face of the other sealing plate 20, effectively preventing gas leakage in the gap between the two sealing plates 20. The third sealing structure 60 of this embodiment not only has a good sealing effect, but also has a simple structure, is easy to install and maintain, and reduces costs.

[0065] Of course, in other embodiments, the end faces of both sealing plates 20 may be provided with a third sealing strip 601. When the two sealing plates 20 move relative to each other and close, the two third sealing strips 601 fit tightly together, effectively preventing gas from leaking in the gap between the two sealing plates 20.

[0066] In some embodiments, see Figure 6, Figure 7 , Figure 8 The third sealing strip 601 has a positioning protrusion 602 on the side facing the other sealing plate 20, and the end face of the other sealing plate 20 is provided with a positioning groove 201 that seals with the positioning protrusion 602.

[0067] Specifically, the positioning ridge 602 is a trapezoidal protrusion extending along the length of the third sealing strip 601, and the end face of the other sealing plate 20 is provided with a positioning groove 201, which is also a trapezoidal groove extending along the length of the end face of the sealing plate 20. The shape and size of the positioning groove 201 match those of the positioning ridge 602. The surfaces of both the positioning ridge 602 and the positioning groove 201 are finely machined to ensure a tight fit and a good seal.

[0068] In actual use, when the two sealing plates 20 move relative to each other and close, the positioning protrusion 602 on the third sealing strip 601 will insert into the positioning groove 201 on the end face of the other sealing plate 20. Since the positioning protrusion 602 and the positioning groove 201 are closely matched in size, they can form a good sealing contact, effectively preventing gas from leaking from the gap between the two sealing plates 20.

[0069] Correspondingly, by providing a positioning protrusion 602 on the third sealing strip 601 and a positioning groove 201 on the other sealing plate 20, the two fit tightly together, effectively preventing gas leakage from the gap between the two sealing plates 20 and ensuring the sealing performance when the two sealing plates 20 are closed. The cooperation between the positioning protrusion 602 and the positioning groove 201 also provides a positioning function when the sealing plates 20 are closed, ensuring precise alignment between the two sealing plates 20 and preventing sealing failure due to misalignment.

[0070] In some embodiments, see Figure 8 The sealing plate 20 has a first limiting part 202 on the surface away from the drive mechanism 40, and the mounting groove 102 has a second limiting part 203 on the end near the drive mechanism 40, which is limited and cooperates with the first limiting part 202.

[0071] For details, see Figure 8 A first limiting part 202 is fixed to the upper surface of the left end of the sealing plate 20. The first limiting part 202 can be a limiting block, a limiting plate, or a limiting strip. The first limiting part 202 can be bolted to the sealing plate 20, welded to it, or integrally formed. A second limiting part 203 is provided at the right end of the mounting groove 102. The second limiting part 203 can be a limiting block, a limiting plate, or a limiting strip. The second limiting part 203 can be bolted to the mounting groove 102 or welded to it.

[0072] Correspondingly, by setting a first limiting part 202 and a second limiting part 203 that cooperates with it, when the sealing plate 20 moves outward, the first limiting part 202 will gradually approach the second limiting part 203; when the sealing plate 20 moves outward to the limit position, the first limiting part 202 contacts the second limiting part 203, thereby restricting the further movement of the sealing plate 20, avoiding excessive displacement of the sealing plate 20 due to external force during the movement, ensuring that the sealing plate 20 and related components are not damaged, and extending their service life.

[0073] In some embodiments, see Figure 1 , Figure 2 , Figure 3 , Figure 4 The drive mechanism 40 includes a drive cylinder 401 arranged parallel to the moving direction of the sealing plate 20. The piston rod of the drive cylinder 401 is connected to the sealing plate 20, and the cylinder body of the drive cylinder 401 is connected to the support base 402.

[0074] Specifically, the drive cylinder 401 can be a pneumatic or hydraulic cylinder, arranged parallel to the moving direction of the sealing plate 20. One end of the piston rod of the drive cylinder 401 is connected to the sealing plate 20, enabling it to push or pull the sealing plate 20 to reciprocate in a straight line. The support base 402 can be a frame structure, which can be fixed to the outside of the slag discharge transition section 10 by bolts or welding, providing stable support for the cylinder body of the drive cylinder 401. The dimensions of the support base 402 can be designed according to the cylinder body dimensions of the drive cylinder 401 to ensure that the cylinder body can be firmly installed on it. In other embodiments, the support base 402 can also be fixed to the outside of the slag discharge standard section.

[0075] Correspondingly, the piston rod of the drive cylinder 401 is directly connected to the sealing plate 20, enabling precise control of the movement of the sealing plate 20 and ensuring its straightness and stability in the horizontal direction. The support base 402 provides stable support for the cylinder body of the drive cylinder 401, further enhancing the stability of the drive mechanism.

[0076] In some embodiments, see Figure 4 , Figure 5 , Figure 6 , Figure 8 The first sealing structure 30 includes an annular first fixing seat 301 installed on the bottom wall and / or top wall of the mounting groove 102. An annular first sealing gasket 302 is connected to the first fixing seat 301 and the first sealing gasket 302 is in sealing fit with the surface of the sealing plate 20.

[0077] Specifically, the first fixing seat 301 is a rectangular annular metal seat, installed on the bottom wall and / or top wall of the mounting groove 102, with its specific installation position determined according to design requirements. The first fixing seat 301 can be made of high-strength aluminum alloy, carbon steel, or stainless steel, possessing excellent mechanical properties. The following description uses the installation of the first fixing seat 301 on the bottom wall of the mounting groove 102 as an example. The first fixing seat 301 can be fixedly connected to the bottom wall of the mounting groove 102 by bolts or welding to ensure its secure installation and sealing. The first sealing gasket 302 is a rectangular annular rubber sealing gasket, installed in the groove at the top of the first fixing seat 301 by adhesive or bolts. The top of the first sealing gasket 302 is tightly fitted to the lower surface of the sealing plate 20, forming a reliable seal.

[0078] Correspondingly, the first fixing seat 301 provides stable support for the first sealing gasket 302, making the installation of the first sealing gasket 302 more convenient. At the same time, when the first sealing gasket 302 needs to be replaced, it can be quickly disassembled and replaced, reducing maintenance costs. Of course, in some other embodiments, the first sealing gasket 302 can also be directly installed on the bottom wall of the mounting groove 102; no specific limitation is made here.

[0079] In some embodiments, see Figure 3 , Figure 6 , Figure 8 , Figure 9 The second sealing structure 50 includes a second sealing gasket 501 that is fitted onto the sealing plate 20 and seals against the outer surface of the sealing plate 20. The second sealing gasket 501 is pressed against the end face of the through-hole 103 by the second pressure plate 502.

[0080] Specifically, the second sealing gasket 501 is an annular elastic sealing ring made of rubber, possessing good elasticity and sealing performance. The second sealing gasket 501 is fitted onto the sealing plate 20, allowing it to fit tightly against the outer surface of the sealing plate 20, forming a sealed contact. The second pressure plate 502 can be an annular metal pressure plate, fitted onto the sealing plate 20 and fixed to the end face of the through-hole 103 with bolts, pressing the second sealing gasket 501 tightly against the end face of the through-hole 103, ensuring a reliable seal is formed between the second sealing gasket 501, the through-hole 103, and the sealing plate 20.

[0081] Correspondingly, the pressing action of the second pressure plate 502 ensures tight contact between the second sealing gasket 501 and the sealing plate 20 and the through-hole 103, maintaining a good sealing effect even when the sealing plate 20 moves frequently. At the same time, this structure also makes the installation of the second sealing gasket 501 more convenient; simply place the second sealing gasket 501 onto the sealing plate 20 and then secure it with the second pressure plate 502.

[0082] In some embodiments, see Figure 9 The end face of the through-hole 103 is provided with a second groove 104, and the second sealing gasket 501 is disposed in the second groove 104. Accordingly, the second sealing gasket 501 is installed in the second groove 104. This embedded design makes the second sealing gasket 501 more stable during the sealing process, avoids displacement or deformation of the second sealing gasket 501 due to the movement of the sealing plate 20, and improves the reliability of the seal.

[0083] In some embodiments, see Figure 4 , Figure 5 The mounting groove 102 is connected to two parallel guide rails 105, which are respectively located on both sides of the sealing plate 20. The two sides of the sealing plate 20 are respectively connected to sliders 106 that slide in cooperation with the two guide rails 105.

[0084] Specifically, the guide rail 105 is a long strip-shaped metal component, made of high-strength aluminum alloy, carbon steel, or stainless steel. The guide rail 105 can be fixed to the side wall of the mounting groove 102 by welding or bolting to ensure a secure installation. The slider 106 can be fixed to the side of the sealing plate 20 by welding or bolting; the slider 106 is mounted on the guide rail 105 and can slide along the guide rail 105.

[0085] Correspondingly, the cooperation between the guide rail 105 and the slider 106 provides precise guidance for the movement of the sealing plate 20, ensuring smooth and linear movement of the sealing plate 20 in the horizontal direction, and avoiding deformation or damage to the sealing plate 20 due to uneven movement. The sliding cooperation between the slider 106 and the guide rail 105 reduces the direct contact between the sealing plate 20 and the inner wall of the mounting groove 102, reduces friction, thereby reducing wear on the equipment and extending its service life.

[0086] See Figure 10 , Figure 11 , Figure 12 The process of extending the slag discharge channel using the vertical shaft slag discharge sealing door 1 provided in this application embodiment is as follows:

[0087] See Figure 10 A sealing cover 80 is installed at the lower part of the shaft 70, forming an airtight chamber 82 between the shaft 70, the sealing cover 80, and the excavation face 81. Several standard muck discharge sections 90 are installed from bottom to top above the sealing cover 80. The muck discharge channel within each standard muck discharge section 90 communicates with the airtight chamber 82 through an opening on the sealing cover 80. A shaft muck discharge sealing door 1, as provided in this embodiment, is installed between the first and second layers of standard muck discharge sections 90. The shaft muck discharge sealing door 1 controls the opening and closing of the muck discharge channel. During normal construction, the shaft muck discharge sealing door 1 is in the open state. After the soil and rock inside the shaft are excavated, the muck is transported to the outside of the shaft through the muck discharge channel using the muck discharge mechanism. The specific transportation process is not described in detail here.

[0088] See Figure 11 Close the vertical shaft slag discharge sealing door 1, remove the connecting structure between the vertical shaft slag discharge sealing door 1 and the second-layer slag discharge standard section 90, leaving the position of the second-layer slag discharge standard section 90 and the remaining structures above it unchanged. Control the vertical shaft 70 and the sealing cover 80 to move downwards a certain distance; an installation space is formed between the vertical shaft slag discharge sealing door 1 and the slag discharge standard section 90 above it. See also Figure 12 Install a new slag discharge standard section 90 in the installation space, connect the lower end of the new slag discharge standard section 90 to the slag discharge sealing door 1 of the vertical shaft, and connect the upper end of the new slag discharge standard section 90 to the lower end of the original second-layer slag discharge standard section 90; then open the slag discharge sealing door 1 of the vertical shaft to restore the smooth flow of the slag discharge channel.

[0089] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A vertical shaft slag discharge sealing door, characterized in that, The system includes a vertically arranged slag discharge transition section (10), which has a transition section channel (101) with openings at the top and bottom. The inner wall of the transition section channel (101) is provided with an annular mounting groove (102). A sealing plate (20) that moves reciprocally in the horizontal direction and is used to cover the transition section channel (101) is slidably connected in the mounting groove (102). The bottom wall and / or top wall of the mounting groove (102) is provided with an annular first sealing structure (30) that seals against the surface of the sealing plate (20). One end of the sealing plate (20) along its moving direction passes through the slag discharge transition section (10) and is connected to the drive mechanism (40) located outside the slag discharge transition section (10). The slag discharge transition section (10) is provided with a through-hole (103) through which the sealing plate (20) passes. The through-hole (103) is provided with a second sealing structure (50) that seals with the sealing plate (20).

2. The vertical shaft slag discharge sealing door according to claim 1, characterized in that, The sealing plate (20) includes two, which are arranged opposite to each other along their moving direction. A third sealing structure (60) is provided between the two sealing plates (20). The slag discharge transition section (10) has two through holes (103) arranged opposite to each other. The two sealing plates (20) pass through the two through holes (103) respectively and are connected to the two driving mechanisms (40) respectively.

3. The vertical shaft slag discharge sealing door according to claim 2, characterized in that, The third sealing structure (60) includes a third sealing strip (601) disposed between the two sealing plates (20) and connected to the end face of one of the sealing plates (20).

4. The vertical shaft slag discharge sealing door according to claim 3, characterized in that, The third sealing strip (601) has a positioning protrusion (602) on the side facing the other sealing plate (20), and the end face of the other sealing plate (20) is provided with a positioning groove (201) that seals with the positioning protrusion (602).

5. The vertical shaft slag discharge sealing door according to claim 1, 2, 3 or 4, characterized in that, The sealing plate (20) has a first limiting part (202) on one end surface away from the driving mechanism (40), and the mounting groove (102) has a second limiting part (203) on one end near the driving mechanism (40) that cooperates with the first limiting part (202).

6. The vertical shaft slag discharge sealing door according to claim 1, 2, 3 or 4, characterized in that, The drive mechanism (40) includes a drive cylinder (401) arranged parallel to the moving direction of the sealing plate (20), the piston rod of the drive cylinder (401) is connected to the sealing plate (20), and the cylinder body of the drive cylinder (401) is connected to the support base (402).

7. The vertical shaft slag discharge sealing door according to claim 1, 2, 3 or 4, characterized in that, The first sealing structure (30) includes an annular first fixing seat (301) installed on the bottom wall and / or top wall of the mounting groove (102), and a concentrically arranged annular first sealing gasket (302) is connected to the first fixing seat (301), and the first sealing gasket (302) is in sealing fit with the surface of the sealing plate (20).

8. The vertical shaft slag discharge sealing door according to claim 1, 2, 3 or 4, characterized in that, The second sealing structure (50) includes a second sealing gasket (501) fitted on the sealing plate (20) and sealingly fitted to the outer surface of the sealing plate (20). The second sealing gasket (501) is pressed against the end face of the through opening (103) by a second pressure plate (502).

9. The vertical shaft slag discharge sealing door according to claim 8, characterized in that, The end face of the through-hole (103) is provided with a second groove (104), and the second sealing gasket (501) is provided in the second groove (104).

10. The vertical shaft slag discharge sealing door according to claim 1, 2, 3 or 4, characterized in that, The mounting groove (102) is connected to two parallel guide rails (105), which are respectively located on both sides of the sealing plate (20). The two sides of the sealing plate (20) are respectively connected to sliders (106) that slide in cooperation with the two guide rails (105).

Images