A conveying device for a shaft sinking machine

Abstract

The application relates to a conveying device for a shaft sinking machine for discharging slag and relates to the technical field of slag-liquid separation, which comprises a slag receiving cylinder, the top of the slag receiving cylinder is provided with a slag receiving opening, the bottom of the slag receiving cylinder is provided with a slag discharging opening, helical blades are rotationally matched with the inner wall of the slag receiving cylinder, a liquid filter plate is arranged on the side wall of the slag receiving cylinder, and a slag bucket mechanism is arranged on one side of the liquid filter plate outside the slag receiving cylinder. In the process that the slag filter plate is in contact with the eccentric block, the slag filter plate is subjected to an upward moving force, when the slag filter plate moves to the highest point, the slag filter plate is subjected to the stretching force of two elastic springs, the slag filter plate is subjected to a downward moving force, the slag filter plate realizes up-and-down reciprocating motion, the slag filter plate bounces up and down, the slag mixture is prevented from being blocked on the slag filter plate, the slag mixture passing through the liquid filter plate is promoted to be further screened, and the solid-liquid separation effect in the slag bucket mechanism is improved.

Description

Technical Field

[0001] This application relates to the field of slag-liquid separation technology, and in particular to a conveying device for slag discharge of a vertical shaft tunneling machine. Background Technology

[0002] During the construction of vertical shaft excavation, it is necessary to continuously and efficiently transport the excavated soil (rock-soil mixture) from the underground excavation head to the surface. For this purpose, a conveying device for excavating soil is used to transport and separate the solid materials and free water in the excavated soil, so as to facilitate the transportation of the excavated soil.

[0003] During the use of existing slag discharge conveying devices, a small amount of solid slag is easily mixed with the separated liquid water, which is not conducive to the discharge and transmission of liquid water and reduces the effectiveness of the conveying device. Summary of the Invention

[0004] To address the problem that a small amount of solid slag easily mixes with the separated liquid water during the use of slag discharge conveying devices, this application provides a slag discharge conveying device for vertical shaft tunneling machines.

[0005] This application provides a conveying device for slag removal in a vertical shaft tunneling machine, which adopts the following technical solution: A conveying device for slag discharge of a vertical shaft tunneling machine includes a slag receiving cylinder, a slag receiving port at the top of the slag receiving cylinder, a slag discharge port at the bottom of the slag receiving cylinder, a spiral blade rotatably fitted on the inner wall of the slag receiving cylinder, a liquid filter plate on the side wall of the slag receiving cylinder, and a slag hopper mechanism located on one side of the liquid filter plate outside the slag receiving cylinder.

[0006] The slag hopper mechanism has a slag chute filter plate that slides up and down inside. The bottom of the slag chute filter plate is provided with an upper contact block. An eccentric block is in contact with the lower part of the upper contact block. An eccentric shaft is fixedly connected to one side of the eccentric block.

[0007] By adopting the above technical solution, when the eccentric shaft rotates, it drives the eccentric block fixedly connected to the eccentric side of the eccentric shaft to rotate around the eccentric shaft below the slag filter plate. The eccentric block is located directly below the upper contact block fixedly connected to the bottom of the slag filter plate, so that the slag filter plate slides up and down inside the slag hopper mechanism. During use, the slag receiving cylinder uses the hoisting system structure to lift the slag from the bottom of the shaft. Then, the slag enters the slag receiving cylinder through the slag receiving port at the top of the slag receiving cylinder and moves towards the bottom of the slag receiving cylinder along the rotating spiral blades. The solid slag moves along the rotating spiral blades and is discharged from the slag outlet at the bottom of the slag receiving cylinder, while the liquid water mixture is discharged from the liquid filter plate on the side wall of the slag receiving cylinder. The liquid water mixture consists of liquid water and solid slag, and the solid slag particles filtered out by the liquid filter plate are relatively small.

[0008] Optionally, the inner wall of the slag hopper mechanism is fixedly connected to two ear plates, both of which are located below the slag chute filter plate, and elastic springs are fixedly connected between the two ear plates and the slag chute filter plate.

[0009] By adopting the above technical solution, the elastic springs that are fixedly connected between the two ear plates and the slag filter plate can provide a downward traction force to the slag filter plate.

[0010] Optionally, lifting sliders are fixedly connected to both sides of the slag chute filter plate.

[0011] The slag hopper mechanism has lifting grooves on both inner sidewalls, and the two lifting sliders slide in the lifting grooves respectively.

[0012] By adopting the above technical solution, the sliding cooperation of the two lifting grooves opened on the two inner sidewalls of the slag hopper mechanism and the lifting slider avoids circumferential deflection during sliding.

[0013] Optionally, the eccentric shaft is rotatably fitted on the inner wall of the slag hopper mechanism, and one end of the eccentric shaft passes through and is located on the outer wall of the slag hopper mechanism.

[0014] A first motor is fixedly installed on the outer wall of the slag hopper mechanism, and the output end of the first motor is fixedly connected to the eccentric shaft.

[0015] By adopting the above technical solution, the first motor fixedly installed on the outer wall of the slag hopper mechanism is started, so that the eccentric shaft fixedly connected to the output end of the first motor rotates, and the eccentric shaft always rotates and cooperates inside the slag hopper mechanism.

[0016] Optionally, a slag discharge port is provided on one side of the slag hopper mechanism, and a liquid discharge hopper is provided at the bottom of the slag hopper mechanism, with the liquid discharge hopper located below the slag chute filter plate.

[0017] By adopting the above technical solution, after the solid slag is screened again by the slag hopper mechanism, the solid slag is discharged from the slag chute, while the liquid water filtered inside the slag hopper mechanism is discharged from the drain hopper set at the bottom of the slag hopper mechanism.

[0018] Optionally, the inner wall of the slag hopper mechanism is provided with a plurality of inclined hopper plates, which are located above the slag chute filter plate.

[0019] The liquid filter plate has a number of liquid holes, all of which are located above the inclined hopper plate.

[0020] By adopting the above technical solution, when the slag filter plate moves up and down to achieve solid-liquid sieving, the slag filter plate is always located below several inclined hopper plates. After the mixture passes through the liquid filter plate and enters the slag hopper mechanism, the inclined setting of several inclined surfaces also allows the mixture to fall onto the slag filter plate along the path of the inclined surfaces.

[0021] Optionally, a central shaft is fixedly connected to the center of the spiral blade, and the bottom end of the central shaft is located outside the slag receiving cylinder.

[0022] A second motor is fixedly installed at the bottom of the slag receiving cylinder, and the output end of the second motor is fixedly connected to the bottom end of the central shaft.

[0023] By adopting the above technical solution, the slag mixture in the conveying channel forms a composite cross-sectional structure with height differences and flow resistance differences along the slag movement direction. This allows the solid slag to preferentially move along the main conveying path under the action of gravity and conveying driving force, while the free liquid water naturally collects during the flow state change and is discharged through the bypass drainage path. Thus, passive diversion of slag and water is achieved during the conveying process of the spiral blades in the slag receiving cylinder. The conveying setting of the spiral blades in the slag receiving cylinder avoids the problems of easy clogging and high maintenance of conventional screening and sedimentation separation structures. It also makes the slag entering the subsequent conveying section present a more stable accumulation form, reducing the risk of backflow, impact and jamming caused by slag and water mixing during the vertical shaft slag discharge process.

[0024] Optionally, a scraper is fixedly connected to the side of the central shaft, and the scraper is in contact with the bottom of the slag receiving cylinder.

[0025] By adopting the above technical solution, the scraper fixedly connected to the side of the central shaft rotates along the inner bottom of the slag receiving cylinder. The scraper is fitted to the inner bottom of the slag receiving cylinder, which realizes the scraping and cleaning of the solid slag material accumulated at the bottom of the slag receiving cylinder, and improves the slag material discharge efficiency at the bottom of the slag receiving cylinder.

[0026] Optionally, the bottom of the slag receiving cylinder is fixedly connected with several support legs.

[0027] By adopting the above technical solution, the several support legs fixedly connected to the bottom of the slag receiving cylinder are beneficial to the slag discharge setting when discharging slag material from the slag receiving cylinder.

[0028] In summary, this application includes at least one of the following beneficial technical effects of a conveying device for slag removal in a shaft boring machine: In this application, during the contact process between the slag chute filter plate and the eccentric block, the slag chute filter plate is subjected to an upward force. When the slag chute filter plate moves to its highest point, it is subjected to the tensile force of two elastic springs, which causes the slag chute filter plate to move downward. This realizes the up-and-down reciprocating motion of the slag chute filter plate, achieving the up-and-down shaking of the slag chute filter plate. This avoids the slag mixture from clogging on the slag chute filter plate, promotes further screening of the slag mixture passing through the liquid filter plate, and improves the solid-liquid separation effect inside the slag hopper mechanism.

[0029] In this application, when the central shaft rotates, it drives the scraper fixedly connected to the side of the central shaft to rotate along the inner bottom of the slag receiving cylinder. The scraper is fitted to the inner bottom of the slag receiving cylinder, thereby scraping and cleaning the solid slag material accumulated at the bottom of the slag receiving cylinder and improving the slag material discharge efficiency at the bottom of the slag receiving cylinder. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of a conveying device for slag removal in a vertical shaft tunneling machine according to this application; Figure 2 for Figure 1 Enlarged diagram of A in the middle; Figure 3 A cross-sectional view of a conveying device for slag removal in a vertical shaft tunneling machine; Figure 4 for Figure 3 Enlarged diagram of B in the middle; Figure 5 for Figure 3 Enlarged diagram of C in the middle; Figure 6 This is a cross-sectional view of the slag receiving cylinder; Figure 7 for Figure 6 An enlarged schematic diagram of D in the diagram.

[0031] Explanation of reference numerals in the attached drawings: 1. Slag receiving cylinder; 11. Slag receiving port; 12. Slag outlet; 13. Spiral blade; 14. Liquid filter plate; 15. Slag hopper mechanism; 151. Slag chute filter plate; 1511. Upper contact block; 1512. Lifting slider; 153. Eccentric block; 1531. Eccentric shaft; 1532. First motor; 154. Ear plate; 1541. Elastic spring; 155. Lifting chute; 156. Slag outlet; 157. Liquid discharge hopper; 158. Inclined hopper plate; 16. Central shaft; 161. Scraper; 17. Second motor; 18. Support leg. Detailed Implementation

[0032] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, what is described is only a part of this application, not all of it. Based on this application, all other innovations obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] This application discloses a conveying device for slag removal in a vertical shaft tunneling machine.

[0034] Example 1:

[0035] Reference Figure 1A conveying device for slag discharge of a vertical shaft tunneling machine includes a slag receiving cylinder 1, a slag receiving port 11 at the top of the slag receiving cylinder 1, a slag discharge port 12 at the bottom of the slag receiving cylinder 1, a spiral blade 13 rotatably fitted on the inner wall of the slag receiving cylinder 1, a liquid filter plate 14 on the side wall of the slag receiving cylinder 1, and a slag hopper mechanism 15 located on one side of the liquid filter plate 14 outside the slag receiving cylinder 1.

[0036] Reference Figure 4 Inside the slag hopper mechanism 15, there is a slag chute filter plate 151 that slides up and down. The bottom of the slag chute filter plate 151 is provided with an upper contact block 1511. Below the upper contact block 1511, there is an eccentric block 153. An eccentric shaft 1531 is fixedly connected to one side of the eccentric block 153.

[0037] Reference Figure 7 The inner wall of the slag hopper mechanism 15 is fixedly connected to two ear plates 154. Both ear plates 154 are located below the slag chute filter plate 151. Elastic springs 1541 are fixedly connected between the two ear plates 154 and the slag chute filter plate 151.

[0038] Reference Figure 4 and Figure 7 Lifting sliders 1512 are fixedly connected to both sides of the slag filter plate 151.

[0039] Reference Figure 4 and Figure 7 The slag hopper mechanism 15 has lifting grooves 155 on both inner side walls, and two lifting sliders 1512 slide in the lifting grooves 155 respectively.

[0040] Reference Figure 2 The eccentric shaft 1531 is rotatably fitted on the inner wall of the slag hopper mechanism 15, and one end of the eccentric shaft 1531 passes through the outer wall of the slag hopper mechanism 15.

[0041] Reference Figure 2 The first motor 1532 is fixedly installed on the outer wall of the slag hopper mechanism 15, and the output end of the first motor 1532 is fixedly connected to the eccentric shaft 1531.

[0042] Reference Figure 3 The slag hopper mechanism 15 has a slag discharge port 156 on one side and a liquid discharge hopper 157 at the bottom of the slag hopper mechanism 15, which is located below the slag discharge filter plate 151.

[0043] Reference Figure 3 The inner wall of the slag hopper mechanism 15 is provided with several inclined hopper plates 158, which are located above the slag chute filter plate 151.

[0044] Reference Figure 3 The liquid filter plate 14 has several liquid holes, all of which are located above the inclined bucket plate 158.

[0045] The implementation principle of Example 1 is as follows: During use, the slag receiving cylinder 1 is used to lift slag from the bottom of the shaft using a hoisting system. The slag then enters the slag receiving cylinder 1 through the slag receiving port 11 at the top of the slag receiving cylinder 1, and moves towards the bottom of the slag receiving cylinder 1 along the rotating spiral blades 13. Solid slag moves along the rotating spiral blades 13 and is discharged from the slag outlet 12 at the bottom of the slag receiving cylinder 1. The mixture of liquid water is discharged from the liquid filter plate 14 on the side wall of the slag receiving cylinder 1. The mixture of liquid water consists of liquid water and solid slag. The solid slag particles filtered out by the liquid filter plate 14 are relatively small.

[0046] The main operating principle of the conveying device in this application is as follows: the slag mixture entering the slag receiving cylinder 1 consists of solid slag and liquid slag. The slag mixture moves towards the bottom of the slag receiving cylinder 1 along the drive of the spiral blades 13, so that the slag mixture in the conveying channel forms a composite cross-sectional structure with height difference and flow resistance difference along the direction of slag movement. Thus, the solid slag moves preferentially along the main conveying path under the action of gravity and conveying driving force, while the free liquid water naturally collects during the flow state change and is discharged through the bypass drainage path. The bypass drainage path in this application is a liquid filter plate 14, thereby achieving passive diversion of slag and water during the conveying process of the spiral blades 13 in the slag receiving cylinder 1. Through the conveying setting of the spiral blades 13 in the slag receiving cylinder 1, the problems of easy clogging and large maintenance of conventional screening, sedimentation and other separation structures are avoided. It also makes the slag entering the subsequent conveying section present a more stable accumulation form, reducing the risk of backflow, impact and jamming caused by slag and water mixing during the vertical shaft slag discharge process.

[0047] The slag mixture that passes through the liquid filter plate 14 and enters the slag hopper mechanism 15 will directly collide with the inner wall of the slag hopper mechanism 15, so that the solid and liquid in the slag mixture can be quickly separated. At this time, the liquid water, slag mixture and solid slag that enter the slag hopper mechanism 15 along the liquid filter plate 14 will fall onto the slag chute filter plate 151 inside the slag hopper mechanism 15 under the action of gravity.

[0048] The slag filter plate 151 can further improve the separation effect of liquid water on the side wall of the slag receiving cylinder 1 in the conveying device, specifically: By activating the first motor 1532 fixedly installed on the outer wall of the slag hopper mechanism 15, the eccentric shaft 1531 fixedly connected to the output end of the first motor 1532 rotates on the inner wall of the slag hopper mechanism 15. When the eccentric shaft 1531 rotates, it drives the eccentric block 153 fixedly connected to the circumferential side of the eccentric shaft 1531 to rotate around the eccentric shaft 1531 below the slag filter plate 151. The eccentric block 153 is located directly below the upper contact block 1511 fixedly connected to the bottom of the slag filter plate 151. Lifting sliders 1512 are fixedly connected to both sides of the slag filter plate 151. The two lifting sliders 1512 are slidably engaged in the corresponding lifting grooves 155. The two lifting grooves 155 are opened on the two opposite inner walls of the slag hopper mechanism 15, so that the slag filter plate 151 slides up and down inside the slag hopper mechanism 15 along the direction of the two lifting grooves 155. In addition to the upward force from the eccentric block 153, the slag chute filter plate 151 is also subjected to a downward traction force. Specifically, as the slag chute filter plate 151 slides upward along the inside of the slag hopper mechanism 15, the elastic springs 1541, which are fixedly connected to the two ear plates 154 and the slag chute filter plate 151, are stretched. The bottom positions of the two elastic springs 1541 are fixed, while the top positions are moved along with the up-and-down movement of the slag chute filter plate 151. When the slag chute filter plate 151 reaches its highest point, the two elastic springs 1541 are stretched to their maximum extent. The arrangement of the two elastic springs 1541 ensures that the slag chute filter plate 151, when moving upward to its highest point... 51 is subjected to a downward traction force, which causes the slag filter plate 151 to move downward until the upper contact block 1511 fixedly connected to the bottom of the slag filter plate 151 contacts the eccentric block 153. Then, under the rotation of the eccentric block 153, the slag filter plate 151 continues to be subjected to the force of the eccentric block 153, causing the slag filter plate 151 to move upward during the contact with the eccentric block 153. Under the tension of the two stretched elastic springs 1541, the slag filter plate 151 is driven to move downward. When the slag filter plate 151 moves downward, the degree of stretching of the elastic springs 1541 fixedly connected between the two ear plates 154 and the slag filter plate 151 gradually decreases and the degree of compression gradually increases.

[0049] During the contact process between the slag filter plate 151 and the eccentric block 153, the slag filter plate 151 is subjected to an upward force. When the slag filter plate 151 moves to its highest point, it is subjected to the tensile force of the two elastic springs 1541, which causes the slag filter plate 151 to move downward. This achieves the up-and-down reciprocating motion of the slag filter plate 151, resulting in the up-and-down shaking of the slag filter plate 151. This prevents the slag mixture from clogging on the slag filter plate 151, promotes further screening of the slag mixture passing through the liquid filter plate 14, and improves the solid-liquid separation effect inside the slag hopper mechanism 15.

[0050] When the slag filter plate 151 moves up and down to achieve solid-liquid sieving, the slag filter plate 151 is always located below several inclined hopper plates 158. After the mixture passes through the liquid filter plate 14 and enters the slag hopper mechanism 15, the mixture can also fall onto the slag filter plate 151 along the path of the inclined surface after being inclined by several inclined hopper plates 158.

[0051] After being screened again by the slag filter plate 151, the solid slag material rolls along the slag filter plate 151 to the slag outlet 156 and is discharged. The liquid water filtered by the slag filter plate 151 passes through the slag filter plate 151 and is discharged by the liquid discharge hopper 157 set at the bottom of the slag hopper mechanism 15.

[0052] Example 2:

[0053] Reference Figure 3 The spiral blade 13 is fixedly connected to a central shaft 16, and the bottom end of the central shaft 16 is located outside the slag receiving cylinder 1.

[0054] Reference Figure 5 A second motor 17 is fixedly installed at the bottom of the slag receiving cylinder 1, and the output end of the second motor 17 is fixedly connected to the bottom end of the central shaft 16.

[0055] Reference Figure 5 A scraper 161 is fixedly connected to the side of the central shaft 16, and the scraper 161 is in contact with the bottom of the slag receiving cylinder 1.

[0056] Reference Figure 1 The bottom of the slag receiving cylinder 1 is fixedly connected with several support legs 18.

[0057] The implementation principle of Example 2 is as follows: by starting the second motor 17 fixedly installed at the bottom of the slag receiving cylinder 1, the central shaft 16 fixedly connected to the output end of the second motor 17 rotates at the center inside the slag receiving cylinder 1. When the central shaft 16 rotates, it drives the spiral blades 13 fixedly connected to the circumferential side of the central shaft 16 to rotate on the inner wall of the slag receiving cylinder 1. The solid slag material moving downward along the spiral blades 13 falls to the bottom of the slag receiving cylinder 1, and some of the solid slag material will accumulate at the bottom of the slag receiving cylinder 1.

[0058] When the central shaft 16 rotates, it drives the scraper 161, which is fixedly connected to the side of the central shaft 16, to rotate along the inner bottom of the slag receiving cylinder 1. The scraper 161 is fitted with the inner bottom of the slag receiving cylinder 1, thereby scraping and cleaning the solid slag material accumulated at the bottom of the slag receiving cylinder 1 and improving the slag material discharge efficiency at the bottom of the slag receiving cylinder 1.

[0059] Several support legs 18 are fixedly connected to the bottom of the slag receiving cylinder 1, which is beneficial for the slag discharge setting when the slag receiving cylinder 1 discharges slag.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A conveying device for slag removal in a vertical shaft tunneling machine, characterized in that: Includes a slag receiving cylinder (1), the top of which is provided with a slag receiving port (11), the bottom of which is provided with a slag outlet (12), the inner wall of which is rotatably fitted with a spiral blade (13), the side wall of which is provided with a liquid filter plate (14), and a slag hopper mechanism (15) is provided on one side of the liquid filter plate (14) outside the slag receiving cylinder (1). The slag hopper mechanism (15) has a slag filter plate (151) that slides up and down inside. The bottom of the slag filter plate (151) is provided with an upper contact block (1511). The upper contact block (1511) is in contact with an eccentric block (153) below. An eccentric shaft (1531) is fixedly connected to one side of the eccentric block (153).

2. The conveying device for slag removal in a vertical shaft tunneling machine according to claim 1, characterized in that: The inner wall of the slag hopper mechanism (15) is fixedly connected to two ear plates (154). Both ear plates (154) are located below the slag chute filter plate (151). Elastic springs (1541) are fixedly connected between the two ear plates (154) and the slag chute filter plate (151).

3. The conveying device for slag removal in a vertical shaft tunneling machine according to claim 2, characterized in that: Both sides of the slag chute filter plate (151) are fixedly connected to lifting sliders (1512). The slag hopper mechanism (15) has lifting grooves (155) on both inner side walls, and the two lifting sliders (1512) slide in the lifting grooves (155) respectively.

4. The conveying device for slag removal in a vertical shaft tunneling machine according to claim 3, characterized in that: The eccentric shaft (1531) is rotatably fitted on the inner wall of the slag hopper mechanism (15), and one end of the eccentric shaft (1531) passes through the outer wall of the slag hopper mechanism (15). The outer wall of the slag hopper mechanism (15) is fixedly installed with a first motor (1532), and the output end of the first motor (1532) is fixedly connected to the eccentric shaft (1531).

5. A conveying device for slag removal in a vertical shaft tunneling machine according to claim 4, characterized in that: The slag hopper mechanism (15) has a slag discharge port (156) on one side and a liquid discharge hopper (157) at the bottom of the slag hopper mechanism (15), which is located below the slag discharge filter plate (151).

6. A conveying device for slag removal from a vertical shaft tunneling machine according to claim 5, characterized in that: The inner wall of the slag hopper mechanism (15) is provided with a number of inclined hopper plates (158), which are located above the slag chute filter plate (151). The liquid filter plate (14) has a number of liquid holes, and the number of liquid holes are all located above the inclined bucket plate (158).

7. The conveying device for slag removal in a vertical shaft tunneling machine according to claim 1, characterized in that: The spiral blade (13) is fixedly connected to a central shaft (16), and the bottom end of the central shaft (16) is located outside the slag receiving cylinder (1). A second motor (17) is fixedly installed on the bottom of the slag receiving cylinder (1), and the output end of the second motor (17) is fixedly connected to the bottom end of the central shaft (16).

8. A conveying device for slag removal in a vertical shaft tunneling machine according to claim 7, characterized in that: A scraper (161) is fixedly connected to the circumferential side of the central shaft (16), and the scraper (161) is in contact with the bottom of the slag receiving cylinder (1).

9. A conveying device for slag removal from a vertical shaft tunneling machine according to claim 8, characterized in that: The bottom of the slag receiving cylinder (1) is fixedly connected with several support legs (18).

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