Medicine bag conveying device for dredging draw shaft and method for dredging draw shaft

Abstract

The invention relates to the technical field of draw shaft dredging, in particular to a medicine bag conveying device for dredging a draw shaft and a draw shaft dredging method.The medicine bag conveying device comprises a platen installed at the bottom of the draw shaft, an installation hole is formed in the platen, a conveying assembly is arranged below the platen and comprises a hanging ring and a manual chain block, and the hanging ring is fixed to the bottom of the platen; the manual chain block is installed on the hanging ring, a supporting rod assembly is arranged in the draw shaft and comprises a plurality of sections of steel pipes which are arranged up and down, the steel pipes are inserted into the draw shaft from installation holes, hanging rope sleeve lugs are fixed to the side walls of the bottom ends of the steel pipes, and chain block hanging rope sleeves are sleeved on the hanging rope sleeve lugs. And a hook of the manual chain block is hooked on one side, far away from the hanging rope sleeve lug, of the chain block hanging rope sleeve. The steel pipe conveying device has the technical effect that the steel pipes in the draw shaft can be conveyed upwards conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of dredging chute wells, and in particular to a medicine bag conveying device for dredging chute wells and a method for dredging chute wells. Background Art

[0002] In the process of mining production, ore and rock are mainly transported through chutes. Once blocked, it will inevitably affect the normal production. Improper handling methods may even cause casualties. Some chutes are located near the folded core of the ore body, with complex geological conditions and very developed bedding structures. When the chutes are blocked by large blocks, if the blockage position is high from the top of the ore chamber, the treatment effect of various methods such as drilling and charging blasting, hydrogen balloon lifting and explosive blasting is not good.

[0003] For example, the invention patent with publication number CN112729034A discloses an upward blasting method for dealing with chute blockage. This method uses the internal and external threads of the steel pipe to lengthen the steel pipe section by section from the bottom of the chute until the guide pulley welded on the top of the first steel pipe reaches the blockage of the chute, and a nylon rope is passed through the wheel groove of the guide pulley. The nylon rope is used to lift the explosive bag to the blocked part of the chute through the guide pulley and detonate it, thereby destroying the balance of the ore and rock structure at the blocked part of the chute, loosening the ore and rock and automatically falling, thereby achieving the purpose of unblocking the chute.

[0004] The above method of unblocking the chute is generally to manually throw pipes, where steel pipes are pushed upward one by one by hand. This method of manually throwing pipes is difficult. If the blockage position is too high, the higher the height of the steel pipe required, the more steel pipes there are, and it is difficult for workers to throw the steel pipes upward. Summary of the invention

[0005] The embodiment of the present invention provides a drug package conveying device for unclogging a chute and a method for unclogging a chute, which has the technical effect of facilitating the conveying of steel pipes in the chute.

[0006] On the one hand, the present invention discloses a drug bag conveying device for dredging a chute, which adopts the following technical scheme: A medicine bag conveying device for unclogging a chute comprises a platform installed at the bottom of the chute, a mounting hole is formed on the platform, a conveying assembly is arranged below the platform, the conveying assembly comprises a lifting ring and a manual fall chain, the lifting ring is fixed to the bottom of the platform, the manual fall chain is mounted on the lifting ring, a support rod assembly is arranged in the chute, the support rod assembly comprises a plurality of sections of steel pipes arranged up and down, the steel pipes are inserted into the chute through the mounting hole, a hanging rope loop is fixed to the side wall at the bottom end of the steel pipe, a hanging rope loop is mounted on the hanging rope loop, and a hook of the manual fall chain is hooked on the side of the hanging chain loop away from the hanging rope loop ear.

[0007] Furthermore, an embedded joint is arranged between two adjacent steel pipes above and below, one end of the embedded joint is inserted into the upper steel pipe, and the other end of the embedded joint is inserted into the lower steel pipe. Welding openings are opened on the top side wall and the top side wall of the steel pipe, and the steel pipe and the embedded joint are welded and fixed through the welding openings.

[0008] Furthermore, the steel pipe in the support rod assembly is gradually thickened in sections from top to bottom.

[0009] Furthermore, the topmost steel pipe is sleeved with a casing, which can rotate along the steel pipe, the top of the steel pipe passes through the casing, a support plate for supporting the casing is fixed on the steel pipe, a connecting rod is fixed on the casing, top guide wheels are installed at both ends of the connecting rod, a mounting block is installed on the top of the topmost steel pipe, a mounting groove is opened on the mounting block, a fixed pulley is rotatably connected in the mounting groove, and a steel wire rope connected to the medicine bag passes over the fixed pulley.

[0010] Furthermore, a protective cover is fixed on the mounting block to prevent the wire rope from coming off the fixed pulley.

[0011] Furthermore, a rotating shaft is fixed on the top of the topmost steel pipe, and the mounting block is rotatably connected to the rotating shaft. When the steel wire rope is pulled to pull the medicine bag upward, the fixed pulley is located below the rotating shaft. When the medicine bag is pulled to the top, the mounting block and the fixed pulley can rotate along the rotating shaft, so that the medicine bag is tightly attached to the bottom of the large block.

[0012] Furthermore, a guide tube is inserted into the installation hole to guide the steel pipe to be lifted upward, and the guide tube is fixed to the table.

[0013] Furthermore, a fixing rod is provided at the bottom of the chute, and both ends of the fixing rod are respectively fixed to the side walls of the chute. A bottom guide tube for guiding the pull rope is sleeved on the fixing rod, and the bottom guide tube can rotate along the axis of the fixing rod.

[0014] Furthermore, one end of the steel wire rope is a pull rope end, and the other end of the steel wire rope is a medicine lifting end, and the medicine bag is located between the pull rope end and the medicine lifting end.

[0015] On the other hand, the present invention also discloses a method for dredging a chute, comprising the following steps: S1. Install the table, open the installation holes on the table and install the guide tube; S2. Weld a lifting ring on each side of the guide tube under the table, and the lifting ring is used to hang the manual fall chain; S3. Use Solidworks 3D modeling software to simulate the deformation of iron pipes with different diameters from top to bottom, and calculate the diameter category and length of the steel pipe; S4. The steel pipe is transported upward by a manual fall chain so that the steel pipe passes through the guide pipe, and two adjacent steel pipes are fixed by welding through embedded joints.

[0016] S5. When the top of the topmost steel pipe contacts the bottom of the blocking object, pull the medicine bag upward to the top position; S6. Manual fall chain for secondary delivery. When the medicine bag is pulled to the top, the weight of the medicine bag causes the top of the steel pipe to bend, and the top of the steel pipe moves down, so that the medicine bag is separated from the blocking block. At this time, a manual fall chain is used to deliver the steel pipe for a second time, so that the top of the steel pipe can re-contact the blocking block, and then the steel pipe at the bottom is welded and fixed to the guide tube.

[0017] Compared with the prior art, the present invention has the following technical effects: 1. By setting a guide pipe and gradually thickening the steel pipe from top to bottom, the strength of the steel pipe is increased and the degree of deflection of the steel pipe is reduced; 2. By setting a manual fall chain, the problem of heavy weight of the iron pipe and difficulty in delivery is solved; 3. An embedded joint is set between two adjacent steel pipes, and the steel pipe and the embedded joint are welded and fixed, which reduces the possibility of steel pipe breakage. If the upper and lower steel pipes are connected by threads, the steel pipe will be tilted when it is lifted, and the threaded connection will cause disengagement; 4. By setting a top guide wheel that can rotate 360 ​​degrees, the problem of the rod head getting stuck on the well wall due to the rough well wall is solved; 5. By setting a fixed rod and a bottom guide pipe, the staff can pull the medicine from the tunnel, which solves the problem of gravel collapse and injury when pulling medicine directly below the well; 6. The present invention can be applied to the situation where the blocking position is higher than the roof of the ore discharge chamber, and has the characteristics of high construction efficiency and low construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present invention, and do not constitute a limitation of the present invention. In the drawings: Figure 1 To illustrate the schematic diagram of the chute blocking structure in the present invention; Figure 2 A schematic diagram of a table, a steel wire rope and a medicine bag in the present invention; Figure 3 A schematic diagram of a conveying assembly in the present invention; Figure 4 A schematic diagram of a support rod assembly in the present invention; Figure 5 A schematic diagram of a rotary guide assembly in the present invention; Figure 6 It is a schematic diagram of a fixed pulley and a protective cover in the present invention.

[0019] Explanation of the accompanying drawings: 1. chute; 11. tunnel; 12. fixed rod; 121. bottom guide tube; 2. table; 21. guide tube; 3. support rod assembly; 31. steel pipe; 311. welding joint; 32. embedded joint; 4. rotating guide assembly; 41. sleeve; 42. connecting rod; 43. top guide wheel; 44. support plate; 45. mounting block; 451. rotating shaft; 452. mounting groove; 453. protective cover; 46. fixed pulley; 5. conveying assembly; 51. lifting ring; 52. manual fall chain; 6. hanging rope loop ear; 61. hanging fall chain rope loop; 7. wire rope; 71. pull rope end; 72. medicine lifting end; 73. medicine bag. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0021] Reference Figure 1 Xingshan Iron Mine adopts the pillarless sublevel caving method for mining, with a sublevel height of 18.75m. There are 12 chutes in the mining area, which can lift 3.35 million tons of ore and rock every year, and -330m is the transportation level for electric locomotives. The 12# chute is located near the fold core of the Daxingshan ore body, with complex geological conditions and a very developed bedding structure. On July 6, 2020, the 12# chute was blocked by a large block of the well wall, and the blocking position was at the -296.4m level, 27 meters away from the top of the ore chamber. Various methods such as drilling and charging blasting, hydrogen balloon lifting and explosive blasting were used to treat it, but none of them worked.

[0022] The 12# chute has an elevation of -180m to -330m, a vertical height of 150m, and a designed cross-section diameter of 3m. Each level is plugged after mining. On July 6, 2020, the chute wall leaked again. During the ore discharge process, a large block was stuck at the -296.4m level, 27 meters away from the top of the ore discharge chamber. The thickness of the ore in the blocked section was 68m, and the amount of blocked ore was about 9,000 tons.

[0023] The blockage height of No. 12 chute reached 27m, and the blocked object was a large piece that was not easy to break by vibration. The height of the support rod blasting method was basically limited to less than 5m. Although the space in the chute was relatively closed, forming energy accumulation, the explosion wave could not break the blocked large piece due to the limited amount of explosives and the long distance. Therefore, the study adopted the rod-pulling explosive blasting method to deal with it, and successfully dredged the No. 12 chute in one blast.

[0024] Reference Figure 2-Figure 6The drug package conveying device for dredging a chute comprises a table 2 installed at the bottom of the chute 1, a support rod assembly 3 and a rotating guide assembly 4. The support rod assembly 3 conveys the drug package 73 from the bottom of the chute 1 to the bottom close to the blocked object. The rotating guide assembly 4 can prevent the steel pipe 31 from getting stuck on the well wall when the support rod assembly 3 moves upward. A mounting hole is provided on the table 2, and a guide tube 21 is provided in the mounting hole. The guide tube 21 is welded and fixed to the table 2. According to the position of the blocked object in the chute 1, a laser instrument is used to determine the position of the mounting hole.

[0025] The support rod assembly 3 is inserted into the chute 1 from the guide tube 21. The support rod assembly 3 includes multiple sections of steel pipes 31 arranged vertically. The diameter of the steel pipes 31 gradually increases from top to bottom. An embedded joint 32 is arranged between two adjacent steel pipes 31. The embedded joint 32 is also a steel pipe. One end of the embedded joint 32 is inserted into the upper steel pipe 31, and the other end of the embedded joint 32 is inserted into the lower steel pipe 31. The top side wall of the steel pipe 31 and the bottom side wall of the steel pipe 31 are both provided with welding ports 311. The steel pipe 31 is welded and fixed to the embedded joint 32 through the welding ports 311.

[0026] Through the Solidworks 3D modeling software, the deformation of iron pipes with different diameters from top to bottom was simulated, and the diameter category and length of the steel pipe were calculated. The types of steel pipes are 6-inch pipe, 1-inch pipe, 1.2-inch pipe, 1.5-inch pipe and 2-inch pipe, 6-inch pipe 1 section, length 1m; 1-inch pipe 1 section, length 2m; 1.2-inch pipe 2 sections, length 3m; 1.5-inch pipe 5 sections, length 2m; 2-inch pipe 6 sections, length 2m. The distance from the bottom of the chute 1 to the bottom of the blocked object is 27m, and the total length of the support rod assembly is 31m. The diameter of steel pipe 31 gradually thickens from top to bottom, which increases the overall strength of steel pipe 31.

[0027] A conveying assembly 5 for conveying the steel pipe 31 is provided at the bottom of the table 2. The conveying assembly 5 includes a lifting ring 51 and a manual fall chain 52. The two lifting rings 51 are welded and fixed to the bottom of the table 2. The two lifting rings 51 are respectively located on both sides of the guide tube 21. Each lifting ring 51 corresponds to a manual fall chain 52, and the manual fall chain 52 is installed on the lifting ring 51. A hanging rope loop ear 6 is fixed on the side wall of the bottom end of the steel pipe 31. A hanging chain loop 61 is sleeved on the hanging rope loop ear 6. The hook of the manual fall chain 52 is hooked on the end of the hanging chain loop 61 away from the hanging rope loop ear 6. The manual fall chain 52 is used to deliver the steel pipes 31 upward one by one, solving the problem of the difficulty of manual delivery.

[0028] After all the steel pipes 31 are transported into the chute 1, the end of the last section of the steel pipe 31 is located at the bottom of the guide tube 21. When the medicine bag 73 is transported to the bottom of the blocked object and close to the bottom of the blocked object, the bottommost steel pipe 31 is welded and fixed to the guide tube 21.

[0029] The rotary guide assembly 4 is arranged on the topmost steel pipe 31, and comprises a sleeve 41, a connecting rod 42 and a top guide wheel 43. The sleeve 41 is rotatably connected to the topmost steel pipe 31, and a support plate 44 for supporting the sleeve 41 is fixed on the topmost steel pipe 31. The connecting rod 42 is fixed to the sleeve 41, and two top guide wheels 43 are respectively installed at both ends of the connecting rod 42.

[0030] The topmost steel pipe 31 extends out from the sleeve 41, and a mounting block 45 is provided at the top of the topmost sleeve 41. A rotating shaft 451 is fixed at the top of the topmost steel pipe 31. The mounting block 45 is rotatably connected to the rotating shaft 451. A mounting groove 452 is provided on the mounting block 45. A fixed pulley 46 is rotatably connected in the mounting groove 452. A protective cover 453 is fixed on the mounting block 45 to prevent the steel wire rope 7 from escaping from the fixed pulley 46. When the steel wire rope 7 is pulled upward to pull the medicine bag 73, the fixed pulley 46 is located below the rotating shaft 451. When the medicine bag 73 is pulled to the top, the mounting block 45 and the fixed pulley 46 can rotate along the rotating shaft 451, so that the medicine bag 73 is close to the bottom of the blocked object.

[0031] A fixing rod 12 is arranged above the table 2, and the two ends of the fixing rod 12 are respectively fixed to the side wall of the chute 1. A bottom guide tube 121 is sleeved on the fixing rod 12, and the bottom guide tube 121 can rotate on the fixing rod 12. The steel wire rope 7 is fixed to the medicine bag 73. The steel wire rope 7 enters the chute 1 from the lane 11, passes through the fixed pulley 46, and then passes downward from one side of the guide tube 21. The guide tube 21 guides the steel wire rope 7 to prevent the steel wire rope 7 from getting stuck in the lining board of the eyebrow line of the chute 1. One end of the steel wire rope 7 is the pull rope end 71, and the other end of the steel wire rope 7 is the medicine lifting end 72. The medicine bag 73 is located between the pull rope end 71 and the medicine lifting end 72. When a worker pulls the pull rope end 71 to transport the medicine bag 73 upward, another worker needs to pull the medicine lifting end 72 to prevent the medicine bag 73 from getting stuck on the chute wall.

[0032] A method for dredging a chute 1 comprises the following steps: S1, installing the table top 2, opening a mounting hole on the table top 2 and installing the guide tube 21.

[0033] First, a mounting hole is opened on the platform 2 opposite to the blocking object. According to the position of the blocking block in the chute 1, a laser instrument is used to determine the position of the hole in the platform 2. Then a guide tube 21 with a diameter of 150m and a length of 1.5m is inserted into the hole. The guide tube 21 is an iron tube. The function of the guide tube 21 is to control the direction of the steel pipe when it goes up and to strengthen the straightening.

[0034] S2. A lifting ring 51 is welded on both sides of the guide tube 21 below the table 2. The lifting ring 51 is used to hang a manual fall chain 52. The manual fall chain 52 is used to drop the steel pipes 31 one by one.

[0035] S3. Use Solidworks 3D modeling software to simulate the deformation of iron pipes with different diameters from top to bottom, and calculate the diameter category and length of the steel pipe.

[0036] S4, the steel pipes 31 are transported upward by the manual fall chain 52, and two adjacent steel pipes 31 are welded and fixed by the embedded joints 32.

[0037] S5. When the top of the topmost steel tube 31 contacts the bottom of the blocking object, the medicine bag 73 is pulled upward to the top position.

[0038] S6, the manual fall chain 52 is used for secondary delivery. When the medicine bag 73 is pulled to the top, the weight of the medicine bag causes the head of the steel pipe 31 to bend, the top of the steel pipe 31 moves downward, and the medicine bag 73 is separated from the blocking block. At this time, the manual fall chain 52 is used to deliver the steel pipe for a second time, so that the top of the steel pipe 31 contacts the blocking block again, and then the bottom end of the steel pipe 31 is welded and fixed to the guide tube 21.

[0039] The use of the device for conveying the drug bag 73 for dredging the chute and the method for dredging the chute of the present invention solves the problem of high treatment costs and shortens the treatment period. The drilling and blasting method was used to drill holes in the -255m level 4 access road using a geological drill, which cost 75,000 yuan in drilling costs and was not successful. If the method of digging and removing slag is used, it is equivalent to digging a 100m long chute, which is not only expensive, difficult, and time-consuming, but also cannot guarantee safety. The material cost of using the "rod-pulling drug blasting method" is only 1,716 yuan, which is not only low in cost, but also solves all the above problems.

[0040] Previously, the drilling and blasting method required at least 10 working days, but with the rod-pulling and charge-pulling blasting method, the time required is only 0.83 working days, greatly shortening the processing period.

Claims

1. A drug bag conveying device for dredging chute, It is characterized in that The utility model comprises a platform (2) mounted at the bottom of a chute (1), wherein a mounting hole is formed on the platform (2), and a conveying assembly (5) is arranged below the platform (2), wherein the conveying assembly (5) comprises a lifting ring (51) and a manual fall chain (52), wherein the lifting ring (51) is fixed at the bottom of the platform (2), and the manual fall chain (52) is mounted on the lifting ring (51), and a support rod assembly (3) is arranged in the chute (1), wherein the support rod assembly (3) comprises a plurality of steel pipes (31) arranged up and down, wherein the steel pipes (31) are inserted into the chute (1) through the mounting hole, and a hanging rope loop ear (6) is fixed on the side wall at the bottom end of the steel pipe (31), wherein a hanging rope loop (61) is mounted on the hanging rope loop ear (6), and a hook of the manual fall chain (52) is hooked on a side of the hanging chain loop (61) away from the hanging rope loop ear (6).

2. The drug bag conveying device for dredging a chute according to claim 1, It is characterized in that An embedded joint (32) is provided between two upper and lower adjacent steel pipes (31); one end of the embedded joint (32) is inserted into the upper steel pipe (31); and the other end of the embedded joint (32) is inserted into the lower steel pipe (31); welding openings (311) are provided on the top side wall and the top side wall of the steel pipe (31); and the steel pipe (31) and the embedded joint (32) are fixed by welding through the welding openings (311).

3. The drug bag conveying device for dredging a chute according to claim 2, It is characterized in that The steel pipe (31) in the support rod assembly (3) is gradually thickened in sections from top to bottom.

4. The drug bag conveying device for dredging a chute according to claim 1, It is characterized in that The topmost steel pipe (31) is sleeved with a sleeve (41), and the sleeve (41) can rotate along the steel pipe (31). The top of the steel pipe (31) passes through the sleeve (41). A support plate (44) for supporting the sleeve (41) is fixed on the steel pipe (31). A connecting rod (42) is fixed on the sleeve (41). Both ends of the connecting rod (42) are equipped with top guide wheels (43). A mounting block (45) is installed on the top of the topmost steel pipe (31). A mounting groove (452) is opened on the mounting block (45). A fixed pulley (46) is rotatably connected in the mounting groove (452), and a steel wire rope (7) connected to a medicine bag (73) passes over the fixed pulley (46).

5. The drug bag conveying device for dredging a chute according to claim 4, It is characterized in that A protective cover is fixed on the mounting block (45) to prevent the steel wire rope (7) from coming off the fixed pulley (46).

6. The drug bag conveying device for dredging a chute according to claim 4 or 5, It is characterized in that A rotating shaft (451) is fixed to the top of the topmost steel pipe (31), and the mounting block (45) is rotatably connected to the rotating shaft (451). When the steel wire rope (7) is pulled to pull the medicine bag (73) upward, the fixed pulley (46) is located below the rotating shaft (451). When the medicine bag (73) is pulled to the topmost position, the mounting block (45) and the fixed pulley (46) can rotate along the rotating shaft (451), so that the medicine bag (73) is closely attached to the bottom of the blocking block.

7. The drug bag conveying device for dredging a chute according to claim 1, It is characterized in that A guide tube (21) is inserted into the mounting hole to guide the steel tube (31) to be lifted upward, and the guide tube (21) is fixed to the table plate (2).

8. The drug bag conveying device for dredging a chute according to claim 1, It is characterized in that A fixing rod (12) is provided at the bottom of the chute (1), and both ends of the fixing rod (12) are respectively fixed to the side walls of the chute (1). A bottom guide tube (121) for guiding the pull rope is sleeved on the fixing rod (12), and the bottom guide tube (121) can rotate along the axis of the fixing rod (12).

9. The drug bag conveying device for dredging a chute according to claim 4, It is characterized in that One end of the steel wire rope (7) is a pull rope end (71), the other end of the steel wire rope (7) is a medicine lifting end (72), and the medicine bag (73) is located between the pull rope end (71) and the medicine lifting end (72).

10. A method for unclogging a chute using the medicine bag conveying device for unclogging a chute as claimed in claim 1, It is characterized in that The steps include: S1, installing the table plate (2), opening a mounting hole on the table plate (2) and installing a guide tube (21); S2, welding a lifting ring (51) on each side of the guide tube (21) below the table (2), the lifting ring (51) being used to hang a manual fall chain (52); S3, using Solidworks 3D modeling software, simulate the deformation of iron pipes with different diameters from top to bottom, and calculate the diameter category and length of the steel pipe (31); S4, conveying the steel pipe (31) upwards by means of a manual fall chain (52), so that the steel pipe (31) passes through the guide pipe (21), and two adjacent steel pipes (31) are fixed by welding via an embedded joint (32); S5. When the top of the topmost steel tube (31) contacts the bottom of the blocking object, the medicine bag (73) is pulled upward to the top position; S6, the manual fall chain (52) is used for secondary delivery. When the drug bag (73) is pulled to the top, the weight of the drug bag (73) causes the top of the steel pipe (31) to bend, the top of the steel pipe (31) moves downward, and the drug bag (73) is separated from the blocking block. At this time, the manual fall chain (52) is used to deliver the steel pipe (31) for a second time, so that the top of the steel pipe (31) contacts the blocking block again, and then the bottom end of the steel pipe (31) is welded and fixed to the guide pipe (21).

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