Continuous vertical belt conveyor

Abstract

The invention discloses a continuous vertical belt conveyor, and relates to the technical field of vertical shaft construction. The continuous vertical belt conveyor comprises a wave-shaped flange conveying belt, an expansion support beam and a belt storage bin, the two sections of the wave-shaped flange conveying belt are located in the ground and a vertical shaft respectively, and a vertical plate is fixedly installed at the top of the ground and used for supporting part of the wave-shaped flange conveying belt. Vertical shaft excavation, deslagging and supporting are carried out in stages, one section of excavation, one section of deslagging, one section of supporting and one section of continuous vertical belt conveyor extension closely follow an excavation working face, efficient construction of the vertical shaft is guaranteed through efficient deslagging, continuous operation of vertical shaft deslagging is achieved, and the deslagging efficiency is improved; deslagging equipment for deep and large shaft construction is unified in the whole process and does not need to be replaced, equipment types are reduced, and the equipment utilization rate is increased; the conveyor belt does not need to be prolonged through vulcanization in the vertical shaft construction process, the use technical difficulty of the conveyor is reduced, one-time vulcanization is achieved, and the reliability of the conveyor belt is further improved.

Description

Technical Field

[0001] This invention relates to the field of shaft construction technology, and in particular to a continuous vertical belt conveyor. Background Technology

[0002] Vertical shafts are a common type of project, often used in subway stations, tunnel ventilation, tunnel auxiliary construction, and tunnel water diversion. Vertical shaft construction usually adopts the forward shaft method or the reverse shaft method. The forward shaft method usually uses long-arm excavators, telescopic excavators, gantry cranes, or derrick winches for muck removal. Excavator muck removal is usually only suitable for vertical shaft construction with shallow depth. Gantry cranes, tower cranes, or derrick winches are suitable for deep vertical shaft construction, but the muck removal efficiency decreases as the vertical shaft depth increases, which seriously restricts the construction efficiency of deep and large vertical shafts.

[0003] To address this issue, different muck removal schemes are typically selected based on the depth of the shaft excavation. For depths of 0–20m, excavators are used for muck removal; for depths of 20m–50m, gantry cranes with muck buckets or grab buckets are used; for depths of 50m–100m, gantry cranes, tower cranes, or derricks are used; and for depths above 100m, derricks and winches are used. Selecting different muck removal methods in stages based on the depth of the shaft excavation involves numerous muck removal devices and results in slow muck lifting speed, failing to fundamentally solve the problem of large muck volume and slow speed in deep and large shafts.

[0004] In summary, existing conventional deep and large vertical shaft slag removal solutions and equipment cannot meet the requirements. Summary of the Invention

[0005] The purpose of this invention is to provide a continuous vertical belt conveyor that can solve the problem of slow slag lifting speed, which cannot fundamentally solve the problem of large slag volume and slow speed in deep and large vertical shafts.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a continuous vertical belt conveyor, comprising a corrugated sidewall conveyor belt, with two sections of the corrugated sidewall conveyor belt located on the ground and in a vertical shaft, respectively. A vertical plate is fixedly installed on the top of the ground, the vertical plate being used to support part of the corrugated sidewall conveyor belt, and further comprising: An extended support beam is installed inside the vertical shaft. One end of the extended support beam is connected to a modular support beam, and the other end is connected to the horizontal section at the bottom of the conveyor shaft. The tape storage bin is set on the ground. It can be either a horizontal or vertical tape storage bin. The tape storage bin includes a modular support beam, a sliding guide rail, a tape storage bin frame, and a moving tensioning mechanism. The tensioning mechanism is located on the ground, with the vertical plate positioned to the left of the tensioning mechanism.

[0007] Preferably, the corrugated sidewall conveyor belt is equipped with multiple sets of redirecting rollers, and the interior of the shaft is equipped with modular support beams.

[0008] Preferably, the tape storage bin frame is fixedly installed on the top of the ground, and a sliding guide rail is provided on the tape storage bin frame. The modular support beam of the tape storage bin is installed on the sliding guide rail, and the output end of the tensioning mechanism is connected to the movable tensioning mechanism, which is set on one of the redirecting rollers.

[0009] Preferably, the extended support beam includes an upper part of the extended support, a lifting cylinder, and a lower part of the extended support, wherein there are two sets of lifting cylinders. The upper structure is connected to the modular support beam by quick-release buckles, and the lower structure is connected to the end of the modular support beam and the horizontal section at the bottom of the conveyor well by quick-release buckles. The upper structure and the lower structure are connected by lifting cylinders.

[0010] Preferably, a well wall fixing bracket is fixedly installed on one side of the modular support beam, and the well wall fixing bracket is fixedly installed to the side wall of the vertical shaft.

[0011] Preferably, the modular support beam is used to support the conveyor belt. The modular support beam is spliced ​​together from several support modules. The modular support beam is used in conjunction with the double-connection anti-expansion support beam. The support module at the end is numbered #support module, and the support module of the extension section is numbered #support module.

[0012] Preferably, the shaft is equipped with a bottom slag hopper, and the height of the bottom slag hopper from the bottom of the shaft is always within the operating height range of the excavator.

[0013] Preferably, two sets of vertical plates are fixedly installed on the top of the ground, one set of redirecting rollers is rotatably installed between the two sets of vertical plates, and a drive mechanism is fixedly installed on the front side of one set of vertical plates, with the output shaft of the drive mechanism fixedly connected to one set of redirecting rollers.

[0014] Preferably, when the storage bin is a horizontal storage bin, the tensioning mechanism is a traction wheel used to tension the corrugated sidewall conveyor belt.

[0015] Preferably, when the storage bin is a vertical storage bin, the tensioning mechanism is a gravity box, which plays an auxiliary role when the storage bin is a vertical storage bin.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This continuous vertical belt conveyor allows for phased excavation, slag removal, and support of the shaft. Excavation, slag removal, and support are carried out in stages, with the continuous vertical belt conveyor extending along each section, closely following the excavation face. Efficient slag removal ensures efficient shaft construction, and continuous slag removal operations improve efficiency. The slag removal equipment is standardized throughout the entire process for deep and large shafts, eliminating the need for replacements, reducing equipment types, and increasing equipment utilization. The conveyor belt does not require vulcanization during shaft construction, reducing the technical difficulty of using the conveyor. One-time vulcanization further improves the reliability of the conveyor belt. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a cross-sectional view of the present invention; Figure 2 This is a partial front view of the present invention; Figure 3 This is a structural diagram of the extended support beam of the present invention; Figure 4 This is a vertical structural diagram of the storage compartment of the present invention.

[0018] Reference numerals: 1. Corrugated sidewall conveyor belt; 2. Modular support beam; 3. Extended support beam; 31. Upper part of extended support; 32. Lifting cylinder; 33. Lower part of extended support; 4. Storage bin; 41. Modular support beam for storage bin; 42. Sliding guide rail; 43. Storage bin frame; 44. Moving tensioning mechanism; 5. Tensioning mechanism; 6. Well wall fixed support; 7. Drive mechanism; 8. Side discharge slag hopper; 9. Bottom slag hopper; 10. Diverting roller; 11. Vertical plate. Detailed Implementation

[0019] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0020] Please see Figure 1-4This invention provides a technical solution: a continuous vertical belt conveyor, comprising a corrugated sidewall conveyor belt 1, an extended support beam 3, and a belt storage bin 4. Two sections of the corrugated sidewall conveyor belt 1 are located on the ground and inside a shaft, respectively. A vertical plate 11 is fixedly installed on the top of the ground, supporting part of the corrugated sidewall conveyor belt 1. Multiple sets of redirecting rollers 10 are installed on the corrugated sidewall conveyor belt 1. A modular support beam 2 is installed inside the shaft, and the extended support beam 3 is located inside the shaft. One end of the extended support beam 3 is connected to the modular support beam 2, and the other end is connected to the horizontal section at the bottom of the conveyor shaft. The belt storage bin 4 is located on the ground and can be a horizontal or vertical storage bin. The storage bin 4 includes a storage bin modular support beam 41, a sliding guide rail 42, a storage bin frame 43, and a moving tensioning mechanism 44. 3. Fixedly installed on the top of the ground, the storage bin frame 43 is equipped with a sliding guide rail 42, and the storage bin modular support beam 41 is installed on the sliding guide rail 42. The output end of the tensioning mechanism 5 is connected to the movable tensioning mechanism 44, which is set on one of the redirecting rollers 10. The storage bin 4 is laid on the ground and is used to store a sufficient length of corrugated sidewall conveyor belt 1 so that the shaft body section of the corrugated sidewall conveyor belt 1 can be extended as the shaft excavation depth increases during the vertical shaft construction. The storage bin 4 can be selected as a horizontal storage bin or a vertical storage bin according to the ground space. The horizontal storage bin has the advantages of simple structure and convenient installation and maintenance, but it occupies a large area. The vertical storage bin has a compact structure and is suitable for construction sites with limited space. The tensioning mechanism 5 is set on the ground, and the vertical plate 11 is located on the left side of the tensioning mechanism 5.

[0021] The extended support beam 3 includes an upper part 31, a lifting cylinder 32, and a lower part 33. There are two sets of lifting cylinders 32. The upper structure 31 is connected to the modular support beam 2 by quick-release buckles, and the lower structure 33 is connected to the end of the modular support beam 2 and the horizontal section at the bottom of the conveyor well by quick-release buckles. The upper structure 31 and the lower structure 33 are connected by the lifting cylinders 32.

[0022] A well wall fixing bracket 6 is fixedly installed on one side of the modular support beam 2. The well wall fixing bracket 6 is fixedly installed to the side wall of the vertical shaft. The corrugated sidewall conveyor belt 1 is used for vertical slag removal during vertical shaft construction. A belt storage bin is set up on the ground. As the excavation depth of the vertical shaft increases, the corrugated sidewall conveyor belt 1 extends continuously downward to the working height of the excavator. The excavator loads and removes the slag. The corrugated sidewall conveyor belt 1 is supported by a fixed bracket on the ground and by the modular support beam 2 and the well wall fixing bracket 6 underground. The belt is stored in the belt storage bin 4, driven by a drive mechanism 7, and the direction of the conveyor belt is adjusted by a redirecting roller 10. The belt is tensioned by a tensioning mechanism 5.

[0023] The modular support beam 2 is used to support the conveyor belt. The modular support beam 2 is spliced ​​together from several support modules. The modular support beam 2 is used in conjunction with the double-connection anti-extension support beam 3. The support module at the end is numbered as support module 1#, and the support module of the extension section is numbered as support module 0#. In the slag discharge mode of the conveyor, both the upper structure 31 and the lower structure 33 are connected to the modular support beam 2. The double connection prevents the extension support beam 3 from sliding with the conveyor belt support beam 2. In the downward extension mode of the conveyor, the upper structure 31 and the lower structure 33 are installed sequentially with the extension support module 0# and fixed to the modular support beam 2 to realize the downward extension of the conveyor.

[0024] The shaft is equipped with a bottom slag hopper 9, and the height of the bottom slag hopper 9 from the bottom of the shaft is always within the operating height range of the excavator.

[0025] Two sets of vertical plates 11 are fixedly installed on the top of the ground. One set of redirecting rollers 10 is rotatably installed between the two sets of vertical plates 11. A drive mechanism 7 is fixedly installed on the front side of one set of vertical plates 11. The output shaft of the drive mechanism 7 is fixedly connected to one set of redirecting rollers 10.

[0026] When the storage bin 4 is a horizontal storage bin, the tensioning mechanism 5 is a traction wheel used to tension the corrugated sidewall conveyor belt 1.

[0027] When the storage bin 4 is a vertical storage bin, the tensioning mechanism 5 is a gravity box. The gravity box plays an auxiliary role. The gravity box can be configured to form a continuous and uniform vertical pressure on the slag inside the bin by its own weight, which is equivalent to "applying extra thrust" to the slag, forcing it to flow towards the outlet at a stable rate, thus solving the problem of flow fluctuation caused by the compact space of the vertical bin from the source.

[0028] Working principle: Before the shaft is excavated, ensure that the height of the horizontal section of the conveyor shaft bottom is not less than the minimum safe distance for excavation, so as to prevent damage to the conveyor during the shaft excavation process; After the shaft excavation is completed, start the conveyor and keep it running at a low speed; According to the planned extension length of the conveyor, the corresponding number of support modules were removed and transported into the shaft; Open the quick-release buckle between the modular support beam 2 and the lower part 33 of the extension support beam inside the shaft, and use the lifting cylinder 32 to push the lower part 33 of the extension support beam to the end of the No. 1 support module to meet the installation space of the support module 2; After the #0 bracket module is in place, it is connected and fixed to the #1 bracket module and the lower part 33 of the extension bracket beam respectively; Open the quick-release buckle between the upper part 31 of the extended support beam and the modular support beam 2, retract the lifting cylinder 32, and close and lock the quick-release buckle between the upper part 31 of the extended support beam and the modular support beam 2 again to complete the installation of the 0# support module and the reset of the extended support beam 3.

[0029] After the support module 2 is installed, repeat the support module installation steps until the height of the horizontal section at the bottom of the conveyor shaft meets the requirements for the excavator's slag removal operation. Then, control the drive mechanism 7 to start, which will drive one of the redirecting rollers 10 on the corrugated sidewall conveyor belt 1 to rotate. The excavator will drop the slag through the slag collection hopper 9 at the bottom of the shaft onto the corrugated sidewall conveyor belt 1 and transfer the slag to the side discharge slag collection hopper 8 and then into the storage bin 4.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A continuous vertical belt conveyor, comprising a corrugated sidewall conveyor belt (1), with two sections of the corrugated sidewall conveyor belt (1) located on the ground and in a vertical shaft respectively, and a vertical plate (11) fixedly installed on the top of the ground, the vertical plate (11) being used to support part of the corrugated sidewall conveyor belt (1), characterized in that, Also includes: An extended support beam (3) is installed inside the vertical shaft. One end of the extended support beam (3) is connected to the modular support beam (2), and the other end is connected to the horizontal section at the bottom of the conveyor shaft. The storage bin (4) is set on the ground. The storage bin (4) is either a horizontal storage bin or a vertical storage bin. The storage bin (4) includes a storage bin modular support beam (41), a sliding guide rail (42), a storage bin frame (43), and a moving tensioning mechanism (44). The tensioning mechanism (5) is set on the ground, and the vertical plate (11) is located on the left side of the tensioning mechanism (5).

2. A continuous vertical belt conveyor according to claim 1, characterized in that: The corrugated sidewall conveyor belt (1) is equipped with multiple sets of redirecting rollers (10), and the interior of the shaft is equipped with modular support beams (2).

3. A continuous vertical belt conveyor according to claim 2, characterized in that: The storage bin frame (43) is fixedly installed on the top of the ground. A sliding guide rail (42) is provided on the storage bin frame (43). The storage bin modular support beam (41) is installed on the sliding guide rail (42). The output end of the tensioning mechanism (5) is connected to the movable tensioning mechanism (44). The movable tensioning mechanism (44) is set on one of the redirecting rollers (10).

4. A continuous vertical belt conveyor according to claim 3, characterized in that: The extended support beam (3) includes an upper part (31), a lifting cylinder (32), and a lower part (33) of the extended support. There are two sets of lifting cylinders (32). The upper structure 31 is connected to the modular support beam (2) by quick-release buckles. The lower structure (33) is connected to the end of the modular support beam (2) and the horizontal section at the bottom of the conveyor well by quick-release buckles. The upper structure (31) and the lower structure (33) are connected by lifting cylinders (32).

5. A continuous vertical belt conveyor according to claim 4, characterized in that: A well wall fixing bracket (6) is fixedly installed on one side of the modular support beam (2), and the well wall fixing bracket (6) is fixedly installed on the side wall of the vertical shaft.

6. A continuous vertical belt conveyor according to claim 5, characterized in that: The modular support beam (2) is used to support the conveyor belt. The modular support beam (2) is spliced ​​together from several support modules. The modular support beam (2) is used in conjunction with the double connection anti-expansion support beam (3). The support module at the end is numbered as support module 1#, and the support module of the extension section is numbered as support module 0#.

7. A continuous vertical belt conveyor according to claim 6, characterized in that: The shaft is equipped with a bottom slag collection hopper (9), and the height of the bottom slag collection hopper (9) from the bottom of the shaft is always within the operating height range of the excavator.

8. A continuous vertical belt conveyor according to claim 7, characterized in that: Two sets of vertical plates (11) are fixedly installed on the top of the ground. One set of redirecting rollers (10) is rotatably installed between the two sets of vertical plates (11). A drive mechanism (7) is fixedly installed on the front side of one set of vertical plates (11). The output shaft of the drive mechanism (7) is fixedly connected to one set of redirecting rollers (10).

9. A continuous vertical belt conveyor according to claim 8, characterized in that: When the storage bin (4) is a horizontal storage bin, the tensioning mechanism (5) is a traction wheel used to tension the corrugated sidewall conveyor belt (1).

10. A continuous vertical belt conveyor according to claim 8, characterized in that: When the storage bin (4) is a vertical storage bin, the tensioning mechanism (5) is a gravity box, which plays an auxiliary role.

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