A vertical slag discharge device and method for shafts

Abstract

This invention discloses a vertical slag removal device and method for a vertical shaft. The device includes: a working platform suspended inside the shaft by a lifting system; excavating equipment installed at the lower end of the working platform; a working face vertical slag removal device installed at the lower end of the working platform; and a secondary transfer vertical slag removal device installed at the working platform. By installing the excavating equipment at the lower part of the working platform in conjunction with the working face vertical slag removal device and the secondary transfer vertical slag removal device, the broken rock slag at the bottom of the vertical shaft can be continuously and uninterruptedly removed, improving slag removal efficiency. At the same time, it realizes unmanned and intelligent operation at the bottom of the vertical shaft, thereby reducing safety hazards.

Description

Technical Field

[0001] This invention relates to the field of mechanized construction technology for vertical shafts, specifically to a vertical slag removal device and method for vertical shafts. Background Technology

[0002] In existing shaft construction methods, whether using conventional blasting or mechanical rock breaking, the removal of rock debris from the working face involves lowering a bucket to the working face, loading the debris into the bucket using a center-rotating rock grabber or a tracked excavator, and then using a ground winch to lift the bucket to the ground via a wire rope. During the process of lifting, unloading, and returning the bucket to the working face, the rock grabber or tracked excavator stops working, resulting in discontinuous and inefficient debris removal operations. Furthermore, in the confined working face, multiple pieces of equipment, including buckets, tracked excavators, and center-rotating rock grabbers, and multiple personnel are working in parallel and overlapping, leading to a poor working environment and numerous safety hazards.

[0003] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0004] The purpose of this invention is to provide a vertical slag discharge device for shafts to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: A vertical slag discharge device for shafts, comprising: The work platform is suspended inside the shaft via a lifting system; Excavation equipment, located at the lower end of the working platform, is used to excavate and load the broken rock debris at the bottom of the vertical shaft; The vertical slag discharge device on the working face is set at the lower end of the working platform. It is used to transport the broken rock slag excavated by the excavating equipment horizontally to the center of the shaft and then vertically upward to the working platform. A secondary transfer vertical slag discharge device is installed at the working platform to transfer the crushed rock slag transported to the working platform by the vertical slag discharge device at the working face to the surface of the shaft.

[0005] Preferably, the vertical slag discharge device on the working face includes: A vertical conveyor is provided in the middle of the working platform. One end of the vertical conveyor extends to the upper part of the working platform, and the other end extends to the lower part of the excavating equipment. A material collector is provided at the lower end of the vertical conveyor. A horizontal conveyor installed on one side of the vertical conveyor is used to horizontally transport the crushed rock debris excavated by the excavating equipment into the collector.

[0006] Preferably, the secondary transfer vertical slag discharge device includes: A slag bin is located on one side of the upper end of the vertical conveyor. The upper end of the vertical conveyor has a material inlet. The crushed rock slag conveyed vertically upward by the vertical conveyor is transferred to the slag bin through the material inlet. The slag bin is provided with a discharge port at its lower end, and a bucket is provided on the working platform at the discharge port. The slag bin is equipped with a metering and distributing device for quantitatively conveying crushed rock slag from the bucket.

[0007] Preferably, the lifting system is configured with two sets of ground winches, one set of which is connected to the working platform by a steel wire rope and suspended in the shaft to control the up and down movement of the working platform, and the other set of which is connected to the bucket by a steel wire rope to control the movement of the bucket in the shaft.

[0008] Preferably, the outer wall of the excavating equipment is provided with a support structure for supporting and fixing the excavating equipment inside the shaft.

[0009] Preferably, the support structure consists of a hydraulic cylinder and an abutment plate. The hydraulic cylinder is located on the edge side of the working platform, and the end of the telescopic rod of the hydraulic cylinder is connected to the abutment plate.

[0010] A method for vertical slag removal from a shaft, based on the aforementioned vertical slag removal device, includes the following steps: Step 1: Construction Preparation The working platform is suspended inside the shaft by a lifting system and the working platform is controlled to move downward until the excavation equipment is close to the working face at the bottom of the shaft. Step 2: Rock crushing, excavation, and transfer at the working face. The excavation equipment is operated to break and excavate the rock at the working face of the shaft, and the broken rock debris is continuously transported to the horizontal conveyor. Step 3: Vertical transport of crushed rock debris The horizontal conveyor continuously transports the crushed rock debris transferred by the excavation equipment into the collector, and then the vertical conveyor vertically transports the crushed rock debris in the collector upwards into the slag bin. After the crushed rock debris is transported to the slag bin, it is fed into the bucket by a metering distributor installed in the slag bin. The bucket is then lifted to the ground at the wellhead for unloading. After unloading, the bucket is returned to the slag bin by the lifting system for reloading. The above steps are repeated to achieve cyclic slag discharge.

[0011] Compared with the prior art, the beneficial effects of the present invention are: This invention introduces a suspended working platform, a vertical slag discharge device at the working face, and a secondary transfer vertical slag discharge device. During actual slag discharge operations, the vertical slag discharge device at the working face continuously transports crushed rock debris to the secondary transfer vertical slag discharge device, which then vertically transports the crushed rock debris upwards to the working platform. After transfer processing, the debris is unloaded at the shaft opening. This breaks the intermittent limitation of traditional bucket slag discharge and greatly improves slag discharge efficiency. Simultaneously, in this invention, the bucket does not need to be lowered to the working face; instead, slag loading is carried out on the suspended working platform, away from the core excavation area of ​​the working face. This significantly reduces cross-interference between the bottom equipment and the hoisting system, improving the safety of bottom operations. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the vertical slag discharge device in a vertical shaft according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of the vertical slag discharge device inside the shaft in an embodiment of the present invention; Figure 3 This is a top view of the vertical slag discharge device inside the shaft in an embodiment of the present invention.

[0013] Reference numerals: 1-Working platform; 2-Lifting system; 3-Excavating equipment; 31-Supporting structure; 4-Vertical slag discharge device on the working face; 41-Vertical conveyor; 42-Collector; 43-Horizontal conveyor; 5-Secondary transfer vertical slag discharge device; 51-Slag bin; 52-Receiving port; 53-Discharge port; 54-Metering distributor; 55-Hoisting bucket. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Please see Figure 1-3 This invention provides a vertical slag discharge device for a vertical shaft, comprising: The work platform 1 is suspended inside the vertical shaft via the lifting system 2; Excavation equipment 3 is set at the lower end of the working platform 1 and is used to excavate and load the broken rock debris at the bottom of the vertical shaft; The vertical slag discharge device 4 is located at the lower end of the working platform 1 and is used to horizontally transport the broken rock slag excavated by the excavation equipment 3 to the center of the shaft and then vertically upward to the working platform 1. The secondary transfer vertical slag discharge device 5 is installed at the working platform 1 and is used to vertically transport the crushed rock slag from the working face vertical slag discharge device 4 to the working platform 1 and transfer it to the shaft surface.

[0016] The vertical slag discharge device 4 on the working face includes: A vertical conveyor 41 is provided in the middle of the working platform 1. One end of the vertical conveyor 41 extends to the upper end of the working platform 1, and the other end extends to the lower end of the excavating equipment 3. A collector 42 is provided at its lower end. The horizontal conveyor 43 installed on one side of the vertical conveyor 41 is used to horizontally transport the broken rock debris excavated by the excavation equipment 3 into the collector 42. After the crushed rock debris is horizontally conveyed to the collector 42 by the horizontal conveyor 43, it will be continuously conveyed to the working platform 1 by the vertical conveyor 41.

[0017] The secondary transfer vertical slag discharge device 5 includes: A slag bin 51 is provided on one side of the upper end of the vertical conveyor 41. The upper end of the vertical conveyor 41 is provided with a material inlet 52, which is used to transfer the crushed rock slag that is vertically conveyed upward to the slag bin 51 through the material inlet 52. The lower end of the slag bin 51 is provided with a discharge port 53, and a bucket 55 is provided on the working platform 1 at the discharge port 53. The slag bin 51 is equipped with a metering distributor 54, which is used to quantitatively transport crushed rock slag from the bucket 55. After the crushed rock debris is transferred to the slag bin 51 through the receiving port 52, the crushed rock debris in the slag bin 51 is quantitatively fed into the bucket 55 by the metering distributor 54. The bucket 55 is connected to the lifting system 2 by a steel wire rope. After the lifting system 2 lifts the bucket 55 to the ground of the shaft, the crushed rock debris inside is taken out. Then the lifting system 2 returns the bucket 55 to the initial position for refilling.

[0018] The hoisting system 2 is configured with two sets of ground winches. One set is connected to the working platform 1 by a steel wire rope and suspended in the shaft. The other set is connected to the bucket 55 by a steel wire rope and is used to move the bucket 55 in the shaft.

[0019] The excavating equipment 3 is provided with a support structure 31 on its outer wall for supporting and fixing the excavating equipment 3 inside the shaft.

[0020] Specifically, the support structure 31 is composed of a hydraulic cylinder and an abutment plate. The hydraulic cylinder is located on the edge side of the working platform 1, and the end of the telescopic rod of the hydraulic cylinder is connected to the abutment plate. During the fixing operation, the telescopic rods of the hydraulic cylinders on multiple fixing devices extend synchronously to press the abutment plate against the inner wall of the shaft, thereby fixing it in place.

[0021] The working platform 1 is also equipped with: The hydraulic station is used to provide a power source for the hydraulic cylinders of the excavator boom, etc. of the excavating equipment 3; The control panel is used to operate various electrical devices; An electrical control cabinet is used to supply power to various electrical devices and provide electrical protection. When performing slag removal operations, the excavator 3 can be selected to load the bucket, and the operation can be carried out manually through the control panel.

[0022] In another embodiment, a method for vertical slag removal from a shaft is also provided, comprising the following steps: Step 1: Construction Preparation The working platform 1 is suspended inside the shaft by the lifting system 2 and the working platform 1 is controlled to move downward until the excavation equipment 3 is close to the working face at the bottom of the shaft. Step 2: Rock crushing, excavation, and transfer at the working face. The excavation equipment 3 is operated to break and excavate the rock at the working face of the vertical shaft, and the broken rock debris is continuously transported to the horizontal conveyor 43; Step 3: Vertical transport of crushed rock debris The horizontal conveyor 43 continuously transports the crushed rock debris transferred by the excavation equipment 3 to the collector 42, and then the vertical conveyor 41 vertically transports the crushed rock debris in the collector 42 upward to the slag bin 51. After the crushed rock debris is transported into the slag bin 51, it is fed into the bucket 55 by the metering distributor 54 installed in the slag bin 51. Then, the bucket 55 is lifted to the ground of the shaft opening by the lifting system 2 for unloading. After unloading, the bucket 55 is reset to the slag bin 51 by the lifting system 2 for reloading. The above steps are repeated to achieve cyclic slag discharge.

[0023] This invention introduces a suspended working platform 1, a vertical slag discharge device 4 at the working face, and a secondary transfer vertical slag discharge device 5, breaking the intermittent limitation of traditional bucket 55 slag discharge and greatly improving slag discharge efficiency. Specifically, the excavating equipment 3 (rock grabber or excavator) loads rock slag onto a horizontal conveyor 43, which then transfers it to a vertical conveyor 41, and finally into a slag bin 51 located on the working platform 1. It can be understood that as long as the slag bin 51 has capacity, the horizontal conveyor 43 and the vertical conveyor 41 can operate continuously, meaning excavation and conveying can be carried out continuously without affecting the transfer of the bucket 55. The lifting and transfer operation of the bucket 55 and the excavation and loading operation of the excavating equipment 3 are independent and do not interfere with each other, significantly improving slag discharge efficiency. This invention is particularly suitable for deep well construction. As the wellbore deepens, the lifting cycle time of the bucket 55 increases proportionally. In this invention, the cooperation of the slag bin 51, the horizontal conveyor 43, and the vertical conveyor 41 effectively alleviates the problem of slag discharge efficiency decline caused by increased depth.

[0024] Furthermore, in existing methods of removing slag from the working face, the bucket 55 needs to be lowered to the working face, posing a safety hazard of the bucket 55 colliding with equipment or personnel on the working face. In this invention, the bucket 55 does not need to be lowered to the working face; instead, the slag loading operation is carried out on the suspended working platform 1, far away from the core excavation area of ​​the working face. This significantly reduces cross-interference between the bottom equipment and the hoisting system 2, improving the safety of bottom operations.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical slag discharge device for a shaft, characterized in that, include: The work platform (1) is suspended in the shaft by the lifting system (2); Excavation equipment (3) is set at the lower end of the working platform (1) for excavating and loading the broken rock debris at the bottom of the vertical shaft; The vertical slag discharge device (4) is set at the lower end of the working platform (1) to transport the broken rock slag excavated by the excavation equipment (3) horizontally to the center of the shaft and then vertically upward to the working platform (1). The secondary transfer vertical slag discharge device (5) is set at the working platform (1) and is used to transport the crushed rock slag from the working face vertical slag discharge device (4) to the working platform (1) and transfer it to the shaft surface.

2. The vertical slag discharge device for a vertical shaft according to claim 1, characterized in that, The vertical slag discharge device (4) on the working face includes: A vertical conveyor (41) is provided in the middle of the working platform (1). One end of the vertical conveyor (41) extends to the upper end of the working platform (1), and the other end extends to the lower end of the excavating equipment (3). A collector (42) is provided at its lower end. A horizontal conveyor (43) installed on one side of the vertical conveyor (41) is used to horizontally transport the crushed rock debris excavated by the excavation equipment (3) into the collector (42).

3. A vertical shaft slag discharge device according to claim 2, characterized in that, The secondary transfer vertical slag discharge device (5) includes: A slag bin (51) is set on one side of the upper end of the vertical conveyor (41). A material inlet (52) is opened at the upper end of the vertical conveyor (41). The crushed rock slag conveyed vertically upward by the vertical conveyor (41) is transferred to the slag bin (51) through the material inlet (52). The slag bin (51) has a discharge port (53) at its lower end, and a bucket (55) is installed on the working platform (1) at the discharge port (53).

4. A vertical shaft slag discharge device according to claim 3, characterized in that, The slag bin (51) is equipped with a metering distributor (54) for quantitatively conveying crushed rock slag to the bucket (55).

5. A vertical slag discharge device for a vertical shaft according to claim 3, characterized in that, The hoisting system (2) is configured with two sets of ground winches. One set is connected to the working platform (1) by a steel wire rope and suspends the working platform (1) in the shaft to control the working platform (1) to move up and down. The other set is connected to the bucket (55) by a steel wire rope to control the bucket (55) to move in the shaft.

6. A vertical shaft slag discharge device according to claim 1, characterized in that, The excavating equipment (3) has a support structure (31) on its outer wall for supporting and fixing the excavating equipment (3) inside the shaft.

7. A vertical shaft slag discharge device according to claim 5, characterized in that, The support structure (31) consists of a hydraulic cylinder and an abutment plate. The hydraulic cylinder is located on the edge side of the working platform (1), and the end of the telescopic rod of the hydraulic cylinder is connected to the abutment plate.

8. A method for vertical slag discharge from a shaft, based on the vertical slag discharge device for a shaft as described in any one of claims 1-7, characterized in that, Includes the following steps: Step 1: Construction Preparation The working platform (1) is suspended in the shaft by the lifting system (2) and the working platform (1) is controlled to move downward until the excavation equipment (3) is close to the working face at the bottom of the shaft. Step 2: Rock crushing, excavation, and transfer at the working face. The excavation equipment (3) is operated to break and excavate the rock at the working face of the shaft, and the broken rock debris is continuously transported to the horizontal conveyor (43). Step 3: Vertical transport of crushed rock debris The horizontal conveyor (43) continuously transports the crushed rock debris transferred by the excavation equipment (3) into the collector (42), and then the vertical conveyor (41) vertically transports the crushed rock debris in the collector (42) upward into the slag bin (51). After the crushed rock slag is transported to the slag bin (51), the crushed rock slag is transported to the bucket (55) through the metering distributor (54) set in the slag bin (51). Then, the bucket (55) is lifted to the ground of the shaft opening by the lifting system (2) for slag unloading. After the slag unloading is completed, the bucket (55) is reset to the slag bin (51) by the lifting system (2) for slag reloading. The above steps are repeated to achieve cyclic slag discharge.

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