A chute plugging device and method

Abstract

The present application relates to a kind of chute blocking processing device and method, including the steel wire rope lifting assembly being set in the chute well mouth above;Steel wire rope, bottom end setting guide mechanism, the guide mechanism is used to guide traction rope to adjust the first end position of traction rope, at least one end of the first end of traction rope is used to fix detonator;Bottom structure, fixedly set in the chute well bottom, when not needing dredging blockage, the bottom end of steel wire rope is combined with bottom structure, and when needing dredging blockage, the bottom end of steel wire rope is separated from bottom structure and approaches blockage position.For when chute occurs blockage, open bottom structure, pull steel wire rope to block surface, by guide mechanism, detonator and explosive charge are lifted to block surface and are blown to well.The present application is simple in operation, good in safety, can handle any height of blockage, wide in application range, high in processing efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mining engineering, in particular to the field of handling of chute blockage in open-pit mine. BACKGROUND

[0002] As the main transport channel of mine ore, the chute plays a very important role in the mining process. The chute's ability to release ore and waste rock directly affects the production efficiency and economic benefit of the entire mine. Once the chute is blocked due to some reason, it will seriously affect the normal production of the mine, and even cause production to stop.

[0003] Currently, the main methods for handling chute blockage are mechanical prying, drilling and blasting, cantilever explosive package blasting, hydrogen balloon suspended explosive package blasting, and mine rocket, etc. These methods can effectively handle chute blockage to some extent, but still have great limitations. The mechanical prying and cantilever explosive package methods have low blockage height and poor safety; the drilling and blasting method has high cost and complex operation; the hydrogen balloon suspended explosive package blasting and mine rocket have difficult control of treatment precision and poor blasting effect on the blockage. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a chute blockage handling device and method to solve the problems of difficult precise handling, poor safety in unblocking, and limited blockage position and applicability of current chute blockage, and to achieve the purpose of safe and efficient handling of chute blockage.

[0005] To solve the above technical problems, the present application adopts the following technical solutions:

[0006] A chute blockage handling device, characterized in that it comprises:

[0007] A steel wire rope lifting assembly arranged above the chute portal, used to fix the lifting position of the steel wire rope by clamping it from above, or used to lift or lower the steel wire rope;

[0008] A steel wire rope suspended in the chute, with a guide mechanism arranged at the bottom end, the guide mechanism being used to guide a traction rope to adjust the position of the first and last ends of the traction rope, at least one end of the first and last ends of the traction rope being used to fix a detonating device;

[0009] A bottom structure fixedly arranged in a sink pit under the bottom of the chute, the bottom end of the steel wire rope being combined with the bottom structure when the blockage does not need to be dredged, and the bottom end of the steel wire rope being separated from the bottom structure to approach the blockage position when the blockage needs to be dredged.

[0010] In the technical scheme, the bottom structure is located in a sunken pit below the chute section of the shaft bottom, and is cast at the bottom of the sunken pit. The bottom structure is a certain height from the bottom surface of the chute section of the shaft bottom, and is closed by a cover which is openable and closable. The cover is flush with the bottom surface of the chute section of the shaft bottom, and the cover has a reserved steel wire rope through hole.

[0011] In the technical scheme, the bottom structure is fixed by casting, and the fixed block is movably fixed with the bottom end of the steel wire rope by a pull-out bolt.

[0012] In the technical scheme, two cast iron blocks are cast and fixed in parallel to form the bottom structure, and the top of the cast iron block is provided with a plug hole for fixing the bolt.

[0013] That is, the fixed block is a cast iron block, and can also be other fixed members which can be fixed in the sunken pit, as long as a plug hole for the bolt is provided. The fixed block has a certain weight, and can prevent the steel wire rope from being loosened.

[0014] In the technical scheme, the cover is provided to be openable from the center to both sides, or to be openable by sliding, or to be openable by turning.

[0015] In the technical scheme, two cover plates are installed above the bottom structure to form the cover, and the cover plates have semicircular notches in the center. The cover plates are openable from the center to both sides.

[0016] The semicircular notches in the two cover plates are combined to form a circular hole which is a passage of the steel wire rope.

[0017] The steel wire rope is fixed at the bottom, and is kept in a taut state during the operation of the shaft, so as to ensure that the steel wire rope does not deviate from the central axis of the shaft by a large margin. When the shaft is blocked, the tensioning device and the bottom bolt need to be released first, and finally the steel wire rope is lifted.

[0018] In the technical scheme, the bottom end of the steel wire rope is provided with a folding part, and the folding part forms a lifting ring structure through which the bolt passes.

[0019] In the technical scheme, a fixed pulley is provided above the folding part of the bottom end of the steel wire rope as a guide mechanism.

[0020] In the technical scheme, the steel wire rope lifting assembly includes a tensioning device and a lifting mechanism. The tensioning device is used to tension the steel wire rope to fix the lifting position of the steel wire rope, and the lifting mechanism is used to lift the steel wire rope.

[0021] The steel wire rope is fixed at the bottom, and is kept in a taut state during the operation of the shaft, so as to ensure that the steel wire rope does not deviate from the central axis of the shaft by a large margin. When the shaft is blocked, the tensioning device and the bottom bolt need to be released first, and finally the steel wire rope is lifted.

[0022] A method for treating chute blockage by using a steel wire rope, characterized in that the chute blockage treatment device is used, comprising:

[0023] S1: laser ranging is used to determine the blockage height position;

[0024] S2: the steel wire rope is released from the bottom structure and is in a free state ready to be pulled up;

[0025] S3: the traction rope fixed with the detonating tube is passed through the guide mechanism, and both ends of the traction rope are pulled to a safe position through the guide mechanism;

[0026] S4: the steel wire rope lifting assembly works, and the end of the steel wire rope is pulled up to the blockage height position;

[0027] S5: the detonating tube is connected with the charge, the charge is lifted to the blockage position by the traction rope, is initiated, and the blockage blasting is completed.

[0028] In S5, because the blockage may be destabilized during the steel wire rope lifting process, in order to prevent the charge from being buried and forming a hidden danger, the charge must be connected when the guide mechanism is lifted to the blockage surface.

[0029] Therefore, the present application can realize the blasting treatment of any blockage position by using the steel wire rope penetrating through the chute, and only needs to enter the bottom of the chute for a short time during implementation, has the advantages of high safety and convenient implementation compared with the traditional blockage treatment method, can make the charge better close to the blockage, has higher blasting precision, the device can be repeatedly used, and cost is saved.

[0030] The present application has the advantages of simple structure, reasonable design, and the like. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a whole structure schematic view of the device for treating chute blockage by using a steel wire rope of the present application;

[0032] Figure 2 It is an implementation state schematic view of the present application;

[0033] Figure 3 It is a local enlarged view of A of the present application; Figure 1

[0034] Figure 4 ​Figure 1 is a structural diagram of the bottom structure of the present application.

[0035] Figure 1 is a structural diagram of the bottom structure of the present application. Figure 1 The reference signs in Figure 4 are as follows:

[0036] 1 - frame; 101 - frame concrete base; 2 - steel wire rope; 3 - bottom structure; 4 - plug; 5 - chute; 6 - surrounding rock; 7 - tensioning device; 8 - hoisting mechanism or winch; 9 - fixed pulley; 10 - latch; 11 - concrete base; 12 - cast iron block; 13 - steel wire rope buckle; 14 - cover plate; 15 - explosive package; 16 - traction rope. DETAILED DESCRIPTION

[0037] The present application proposes a device and method for treating chute plugging by using steel wire rope. In order to make the advantages and technical solutions of the present application more clear and explicit, the present application will be described in detail below in combination with specific implementation cases.

[0038] The device for treating chute plugging by using steel wire rope according to the present application is shown in Figure 4. It comprises a frame 1, a steel wire rope 2 and a bottom structure 3 located at the bottom of the chute. The frame 1 is poured at the wellhead of the chute 5, and a steel wire rope tensioning device 7 and a winch 8 are installed on the frame 1. The bottom structure 3 is two parallel cast iron blocks 12, and the upper part of the cast iron blocks 12 has a symmetrical circular hole. The cast iron blocks 12 are poured by concrete at the bottom of the chute 5 to form a concrete base 11. Two cover plates 14 are installed above the bottom structure 3, and the cover plates 14 have a semicircular notch in the center. The cover plates 14 can be opened from the center to both sides. One end of the steel wire rope 2 is fixed at the bottom through the bottom structure, and the other end passes through the tensioning device 7 and is connected to the hoisting mechanism or winch 8. It further comprises: Figure 1 The traction rope 16 is arranged through the fixed pulley 9,

[0039] The steel wire rope fixing structure is three steel wire rope buckles 13 that fix the folded steel wire rope side by side.

[0040] The latch 10 is used to fix and release the steel wire rope 2 so that the steel wire rope is combined with or separated from the bottom structure 3.

[0041] The fixed pulley 9 is fixed at the end of the steel wire rope 2 by buckling and is used to lift the explosive package.

[0042] According to the above scheme, the frame 1 is erected at the wellhead before ore is discharged from the chute 5 (or after it is emptied), the winch 8 and the steel wire rope tensioning device 7 are fixed, and the bottom structure 3 is poured at the bottom.

[0043] According to the above scheme, the steel wire rope 2 passing through the tensioning device 7 is lowered from the wellhead before ore is discharged from the chute 5 (or after it is emptied), and is fixed by the steel wire rope buckle 13 after being folded at the bottom.

[0044] According to the above scheme, the steel wire rope 2 passing through the tensioning device 7 is lowered from the wellhead before ore is discharged from the chute 5 (or after it is emptied), and is fixed by the steel wire rope buckle 13 after being folded at the bottom.

[0045] According to the above scheme, the fixed pulley 9 is fixed above the steel wire buckle 13.

[0046] According to the above scheme, the bolt 10 is inserted through the round hole of the cast iron block 12 and the fixed steel wire 2, and the cover plate 14 is closed.

[0047] According to the above scheme, the steel wire 2 is tensioned by the tensioning device 7.

[0048] In order to more efficiently handle the chute blockage, the application also provides a method for handling chute blockage by using a steel wire. The specific steps are as follows:

[0049] S1: The laser ranging is used to determine the blockage height position;

[0050] S2: The cover plate 14 is opened, the bolt 10 is pulled out, the steel wire is released from the cast iron block 12 of the bottom structure 3, and the end of the steel wire 3 is exposed to the cover plate 14 after the cover plate is closed.

[0051] S3: The traction rope 16 fixed with the detonating tube is inserted through the fixed pulley 9, and the traction rope 16 is pulled to the safe position at both ends.

[0052] S4: The tensioning device 7 is loosened, and the hoist 8 is started to pull the end of the steel wire 2 upward to the blockage height position.

[0053] S5: The detonating tube is connected to the charge 15, the charge 15 is lifted to the blockage position by the traction rope 16, and the cleaning and blasting is completed.

[0054] In S5, because the blockage may be unstable during the lifting of the steel wire 2, in order to prevent the charge 15 from being buried and forming a hidden danger, the charge must be connected when the fixed pulley 9 is lifted to the blockage surface (as shown in Figure 2 ).

[0055] The application does not make strict restrictions, and those skilled in the art can adjust it according to the on-site working conditions.

[0056] The parts not involved in the application can be realized by referring to the existing technology.

[0057] It should be noted that any equivalent manner or obvious modification manner made by those skilled in the art under the guidance of the present description is within the protection scope of the application.

Claims

1. A device for treating well blockage, characterized in that... The invention relates to a chute blockage processing device, comprising: a steel wire rope lifting assembly arranged above the chute well mouth, used for clamping the steel wire rope to fix the lifting position of the steel wire rope or for lifting or lowering the steel wire rope; a steel wire rope suspended in the chute, the bottom end of the steel wire rope is provided with a folding part, the folding part forms a loop structure through which a pin can pass, and a fixed pulley is arranged above the bottom end folding part as a guide mechanism; the guide mechanism is used for guiding a traction rope to adjust the position of the first and last ends of the traction rope, and at least one end of the first and last ends of the traction rope is used for fixing a detonating device capable of connecting a charge bag; a bottom structure fixedly arranged at the bottom of the chute, the bottom end of the steel wire rope is combined with the bottom structure when it is not necessary to dredge the blockage, and the bottom end of the steel wire rope is separated from the bottom structure to approach the blockage position when it is necessary to dredge the blockage; the bottom structure is arranged in a sunken pit below the chute section at the bottom of the chute, and is cast at the bottom of the sunken pit, the bottom structure is at a certain height from the bottom surface of the chute section at the bottom of the chute, and the bottom structure is closed by a cover which can be opened and closed above the bottom structure, and the cover is flush with the bottom surface of the chute section at the bottom of the chute. The bottom structure fixes the fixed block by casting, and the fixed block is movably fixed with the bottom end of the steel wire rope through a pull-out pin.

2. The chute plug treatment apparatus of claim 1, wherein Two cast iron blocks arranged in parallel are cast and fixed at the bottom to form the bottom structure, and the top of the cast iron block is provided with a pin hole for fixing the pin.

3. The chute plug treatment apparatus of claim 1, wherein The cover is arranged to be opened from the center to both sides, or to be opened by sliding, or to be opened by turning.

4. The chute plug treatment apparatus of claim 1, wherein Two cover plates are installed above the bottom structure to form the cover, the cover plate has a semicircular notch in the center, and the cover plate can be opened from the center to both sides.

5. The chute plug treatment apparatus of claim 1, wherein The steel wire rope lifting assembly comprises a tensioning device and a lifting mechanism, the tensioning device is used for tensioning the steel wire rope to fix the lifting position of the steel wire rope, and the lifting mechanism is used for lifting the steel wire rope.

6. A method for treating a chute blockage with a steel wire rope, characterized in that The chute blockage processing device of any one of claims 1-5, comprising: S1: determining the blockage height position by laser ranging; S2: releasing the steel wire rope from the bottom structure and placing it in a free state ready to be pulled up; S3: passing the traction rope fixed with the detonating tube through the guide mechanism, and guiding the traction rope to the safe position through the guide mechanism; S4: the steel wire rope lifting assembly works to pull the end of the steel wire rope upward to the blockage height position; S5: connecting the detonating tube with the charge bag, lifting the charge bag to the blockage position by the traction rope, detonating, and completing the blockage blasting.

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