Hoisting method for two adjacent ore passes on the ground

Abstract

The present invention provides a hoisting method for two adjacent surface ore passes, which connects a hoisting winch, a first sinking winch, and a second sinking winch to a first ore pass, and installs a sinking headframe, a hanging platform, a shaft mouth plate, and other hoisting components into the first ore pass to complete the construction of the first ore pass; the main beams of the hanging platform and the shaft mouth plate are fixed into a movable integral structure through fixing members; then the sinking headframe is integrally moved from the first ore pass to the vicinity of the wellhead of the second ore pass, and based on the hoisting foundation of the second ore pass, the movable integral structure is integrally moved to the preset positions of the hanging platform and the shaft mouth plate of the second ore pass, and then the sinking headframe and other hoisting components near the wellhead are installed into the second ore pass, and the hoisting winch, the first sinking winch, and the second sinking winch are connected to the second ore pass to complete the construction of the second ore pass, so that a set of fixed hoisting equipment sequentially serves the excavation and lining construction of two ore passes, with simple design and reduced project preparation.

Description

Technical Field

[0001] The present invention relates to the technical field of raise construction, and more specifically, to a hoisting method for two adjacent raises on the surface. Background Art

[0002] When large and medium-sized mines that lift ore to the surface by shaft use centralized raise ore drawing, two adjacent vertical raises are usually arranged on the surface. For the excavation and lining of two adjacent raises, the two common technical solutions in China are "forward excavation" and "small shaft + forward enlargement". For each of the two technical solutions, hoisting equipment needs to be separately arranged to assist the construction of each raise, and two engineering preparations are required, which have disadvantages such as large workload, repeated processes, and high construction costs.

[0003] Therefore, there is an urgent need for a hoisting method for two adjacent raises on the surface that reduces procedures, workload, and construction costs. Summary of the Invention

[0004] In view of the above problems, the purpose of the present invention is to provide a hoisting method for two adjacent raises on the surface to solve the problems in the prior art that two engineering preparations are required, and there are disadvantages such as large workload, repeated processes, and high construction costs.

[0005] The hoisting method for two adjacent raises on the surface provided by the present invention includes connecting the centers of the first raise and the second raise to form a raise center line, and arranging a hoisting winch on the extension line of the raise center line; arranging a first sinking winch and a second sinking winch on both sides of the raise center line; wherein, the first sinking winch is close to the first raise, and the second sinking winch is close to the second raise;

[0006] After the first raise and the second raise are excavated to a preset depth, concrete is poured into the first raise and the second raise to form a hoisting foundation;

[0007] Based on the hoisting foundation of the first raise, connect the hoisting winch, the first sinking winch, and the second sinking winch to the first raise, and install a sinking shaft tower, a hanging platform, a shaft head plate, and other hoisting components into the first raise to carry out excavation and support or enlargement and support of the first raise to complete the raise construction of the first raise;

[0008] Start the first sinking winch and the second sinking winch to lift the hanging platform to a position close to the shaft head plate, and fix the main beams of the hanging platform and the shaft head plate as a movable integral structure through fixing parts;

[0009] Move the entire shaft sinking derrick from the first ore pass to near the wellhead of the second ore pass, and based on the hoisting foundation of the second ore pass, move the entire relocatable integral structure to the preset positions of the hanging platform and the sealing plate of the second ore pass. Then install the shaft sinking derrick near the wellhead and other hoisting components into the second ore pass, connect the hoisting winch, the first shaft sinking winch, and the second shaft sinking winch to the second ore pass to carry out excavation support or wall brushing for the second ore pass to complete the construction of the ore pass of the second ore pass.

[0010] Preferably, the fixing member is a steel wire rope.

[0011] Preferably, the other hoisting components include a hoisting crown block, a suspension crown block, a hoisting rope, a suspension rope, and a hanging bucket.

[0012] Preferably, the hoisting crown block, the suspension crown block, and the entire shaft sinking derrick are transferred from the first ore pass to the second ore pass together.

[0013] Preferably, use a crane to move the entire shaft sinking derrick with the hoisting crown block and the suspension crown block from the first ore pass to near the wellhead of the second ore pass.

[0014] Preferably, before using a crane to move the entire shaft sinking derrick with the hoisting crown block and the suspension crown block from the first ore pass to near the wellhead of the second ore pass, it includes:

[0015] Remove the hoisting rope, the suspension rope, and the hanging bucket for standby.

[0016] Preferably, after installing the shaft sinking derrick near the wellhead and other hoisting components into the second ore pass, the process of connecting the hoisting winch, the first shaft sinking winch, and the second shaft sinking winch to the second ore pass includes:

[0017] Hang the hoisting rope between the hoisting winch and the hoisting crown block; connect the suspension rope between the first shaft sinking winch, the second shaft sinking winch and the suspension crown block; hang the hanging bucket on the shaft sinking derrick.

[0018] Preferably, the hoisting foundation includes at least a derrick foundation.

[0019] As can be seen from the above description, for the hoisting method of two adjacent surface ore passes provided by the present invention, first, a hoisting winch is set on the extension line of the ore pass center line of the two ore passes, and a first sinking winch and a second sinking winch are set on both sides of the ore pass center line; after the first ore pass and the second ore pass are excavated to a preset depth, concrete is poured into the first ore pass and the second ore pass to form a hoisting foundation; based on the hoisting foundation of the first ore pass, the hoisting winch, the first sinking winch, and the second sinking winch are connected to the first ore pass, and a sinking derrick, a hanging platform, a capping plate, and other hoisting components are installed into the first ore pass to carry out excavation and support or wall brushing for the first ore pass to complete the construction of the first ore pass; start the first sinking winch and the second sinking winch to lift the hanging platform to a position close to the capping plate, and fix the main beams of the hanging platform and the capping plate as a movable integral structure through fixing parts; then move the entire sinking derrick from the first ore pass to near the wellhead of the second ore pass, and based on the hoisting foundation of the second ore pass, move the movable integral structure to the preset positions of the hanging platform and the capping plate of the second ore pass, and then install the sinking derrick near the wellhead and other hoisting components into the second ore pass, connect the hoisting winch, the first sinking winch, and the second sinking winch to the second ore pass, so as to carry out excavation and support or wall brushing for the second ore pass to complete the construction of the second ore pass, thereby arranging a set of hoisting equipment on both sides of the connection line of the center lines of the two ore passes. After serving the construction of one ore pass, without adjusting the hoisting equipment, serve the construction of the other ore pass. That is: a set of fixed hoisting equipment serves the excavation and lining construction of two ore passes in sequence. The design is simple, reducing engineering preparation. That is, the two adjacent ore passes are designed as a whole, and a set of hoisting equipment is arranged, which is relatively simple. The hoisting winch foundation, the sinking winch foundation, etc., and the hoisting equipment are constructed and installed at one time. After the construction of one ore pass is completed, it continues to be used; the process is simple and the operation is convenient. The entire sinking derrick is shifted, without the need to dismantle and install it layer by layer or piece by piece, and there is no need to disassemble the hanging platform at the bottom of the well and the capping plate at the wellhead in the conventional method. Instead, the hanging platform is lifted to the wellhead and fixed to the capping plate as a whole for demolition and can continue to be used, which is convenient for operation and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other objects and results of the present invention will become more apparent and easier to understand by referring to the following description in conjunction with the drawings and the content of the claims. In the drawings:

[0021] Figure 1 is a flowchart of the hoisting method of two adjacent surface ore passes according to an embodiment of the present invention;

[0022] Figure 2 is a top view layout of two ore passes in the hoisting method of two adjacent surface ore passes according to an embodiment of the present invention;

[0023] Figure 3The vertical lifting schematic diagram for the first raise when using the lifting method for two adjacent raises on the ground according to an embodiment of the present invention;

[0024] Figure 4 The vertical lifting schematic diagram for the second raise when using the lifting method for two adjacent raises on the ground according to an embodiment of the present invention;

[0025] The reference numerals therein include:

[0026] 1. Hoisting winch; 2. Second sinking winch; 3. First sinking winch; 4. Derrick foundation; 5. Sinking derrick; 6. Hanging platform; 7. Sealing platform; 8. Skip; 9. Hoisting rope; 10. Suspension rope; 11. Hoisting crown block; 12. Suspension crown block; 13. Suspension rope; 14. First raise; 15. Second raise.

[0027] In all the drawings, the same reference numerals indicate similar or corresponding features or functions. Detailed implementation manners

[0028] For the excavation and lining of two adjacent raises, two common technical solutions in China are "forward excavation" and "small shaft + forward enlargement". For each of the two technical solutions, hoisting equipment needs to be separately arranged for each raise to assist in construction, and two engineering preparations are required, which have disadvantages such as large workload, repeated processes, and high construction costs.

[0029] In view of the above problems, the present invention provides a lifting method for two adjacent raises on the ground. The specific embodiments of the present invention will be described in detail below with reference to the drawings.

[0030] The following description of the exemplary embodiments is merely illustrative and in no way limits the present invention and its application or use. Technologies and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies and equipment should be regarded as part of the specification.

[0031] To illustrate the lifting method for two adjacent raises on the ground provided by the present invention, Figure 1 The flow chart of the lifting method for two adjacent raises on the ground in this embodiment is shown; Figures 2 - 4 The structural schematic diagram of the lifting method for two adjacent raises on the ground in this embodiment is shown.

[0032] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 Collectively shown, the present invention provides a lifting method for two adjacent raises on the ground, including:

[0033] S1: The well centers of the first ore pass 14 and the second ore pass 15 are connected to form an ore pass center line, and a hoisting winch 1 is arranged on the extension line of the ore pass center line; a first sinking winch 3 and a second sinking winch 2 are arranged on both sides of the ore pass center line; among them, the first sinking winch 3 is close to the first ore pass 14, and the second sinking winch 2 is close to the second ore pass 15; among them, the positions of the hoisting winch 1, the first sinking winch 3 and the second sinking winch 2 are always unchanged, that is, a set of hoisting and sinking equipment is arranged on both sides of the connection line of the two ore pass center lines. After serving the construction of one ore pass (the first ore pass), without adjusting the hoisting and sinking equipment, it serves the construction of another ore pass (the second ore pass), that is, a set of fixed hoisting and sinking equipment serves the excavation and lining construction of two ore passes in sequence.

[0034] S2: After the first ore pass 14 and the second ore pass 15 are excavated to a preset depth, concrete is poured into the first ore pass 14 and the second ore pass 15 to form a hoisting and sinking foundation; in this embodiment, the first ore pass and the second ore pass are excavated and lined to a certain depth, and meet the requirements for installing a hanging platform and a sealing platform. During the period of about 15 m in depth, the concrete pouring work of all hoisting and sinking equipment foundations such as the hoisting and sinking foundation is completed. In this embodiment, the hoisting and sinking foundation is the well tower foundation 4. Of course, it can also include any other concrete-poured foundation with auxiliary functions that is convenient for ore pass construction, which will not be elaborated here.

[0035] S3: Based on the hoisting and sinking foundation of the first ore pass, connect the hoisting winch 1, the first sinking winch 3, and the second sinking winch 2 to the first ore pass 14, and install the sinking shaft tower 5, the hanging platform 6, the sealing platform 7, and other hoisting and sinking components into the first ore pass to carry out excavation and support or wall brushing of the first ore pass to complete the ore pass construction of the first ore pass; in step S3, the other hoisting and sinking components include a hoisting crown block 11, a suspension crown block 12, a hoisting rope 9, a suspension rope 10, and a kibble 8, that is, install the hoisting winch 1, the sinking winches 2 and 3, the sinking shaft tower 5, the hoisting crown block 11, the suspension crown block 12, the hanging platform 6, the sealing platform 7, and all equipment and facilities such as the hoisting rope 9, the suspension ropes 10 and 13, so that the first ore pass has the conditions for normal excavation and support or wall brushing, so as to complete the construction work of the first ore pass first.

[0036] S4: Start the first sinking winch 3 and the second sinking winch 2 to lift the hanging platform 6 to a position close to the sealing platform 7, and fix the main beams of the hanging platform 6 and the sealing platform 7 into a movable integral structure through fixing parts; in this embodiment, the fixing parts are steel wires, that is, after the construction of the first ore pass is completed, synchronously start the sinking winches 2 and 3, lift the hanging platform 6 to the wellhead close to the sealing platform 7, and fix the hanging platform 6 and the main beam of the sealing platform 7 into an integral movable integral structure with steel wires and wait for moving.

[0037] S5: Move the entire shaft sinking derrick 5 from the first ore pass 14 to near the wellhead of the second ore pass 15. Based on the hoisting foundation of the second ore pass, move the entire relocatable integral structure to the preset positions of the hanging platform and the shaft mouth sealing plate of the second ore pass. Then install the shaft sinking derrick 5 near the wellhead and other hoisting components into the second ore pass 15, and connect the hoisting winch 1, the first shaft sinking winch 3, and the second shaft sinking winch 2 to the second ore pass 15 to perform excavation and support or wall brushing of the second ore pass to complete the construction of the second ore pass.

[0038] In this embodiment, the entire hoisting crown block 11, the suspension crown block 12, and the shaft sinking derrick 5 are transferred from the first ore pass 14 to the second ore pass 15 together; and, the shaft sinking derrick with the hoisting crown block and the suspension crown block is moved from the first ore pass to near the wellhead of the second ore pass by a crane; before moving the shaft sinking derrick with the hoisting crown block and the suspension crown block from the first ore pass to near the wellhead of the second ore pass by a crane, it includes: removing the hoisting rope, the suspension rope, and the spare hanging bucket, that is, after the construction of the first ore pass is completed, first remove the hoisting rope, the suspension rope, and the hanging bucket, and then move the relocatable integral structure and the entire shaft sinking derrick, etc.

[0039] Among them, after installing the shaft sinking derrick near the wellhead and other hoisting components into the second ore pass, the process of connecting the hoisting winch, the first shaft sinking winch, and the second shaft sinking winch to the second ore pass includes:

[0040] Hang the hoisting rope between the hoisting winch and the hoisting crown block; connect the suspension rope between the first shaft sinking winch, the second shaft sinking winch and the suspension crown block; hang the hanging bucket on the shaft sinking derrick, so that the second ore pass has the conditions for normal excavation and support or wall brushing, and then complete the construction work of the second ore pass.

[0041] In short, after the construction of the first ore pass is completed, first remove the hanging bucket 8, the hoisting rope 9, the suspension ropes 10 and 13 through step S4. Then move the entire shaft sinking derrick 5 to near the wellhead of the second ore pass by a crane through step S5. Then use a crane to move the movable integral structure of the hanging platform 6 and the shaft mouth sealing plate 7 to the predetermined position of the second ore pass, install the entire shaft sinking derrick 5 of the second ore pass, hang the hoisting rope 9, the suspension ropes 10 and 13, and the hanging bucket 8, etc., so that the second ore pass has the conditions for normal excavation and support or wall brushing, and complete the construction work of the second ore pass.

[0042] As described above, for the hoisting method of two adjacent surface ore passes in this embodiment, first, a hoisting winch is set on the extension line of the ore pass center line of the two ore passes, and a first sinking winch and a second sinking winch are set on both sides of the ore pass center line; after the first ore pass and the second ore pass are excavated to a preset depth, concrete pouring is carried out on the first ore pass and the second ore pass to form a hoisting foundation; based on the hoisting foundation of the first ore pass, the hoisting winch, the first sinking winch, and the second sinking winch are connected to the first ore pass, and a sinking derrick, a hanging platform, a shaft head plate, and other hoisting components are installed into the first ore pass to carry out excavation and support or wall lining support for the first ore pass to complete the construction of the first ore pass; start the first sinking winch and the second sinking winch to lift the hanging platform to a position close to the shaft head plate, and fix the main beams of the hanging platform and the shaft head plate into a movable integral structure through fixing parts; then move the sinking derrick as a whole from the first ore pass to the vicinity of the wellhead of the second ore pass, and based on the hoisting foundation of the second ore pass, move the movable integral structure as a whole to the preset positions of the hanging platform and the shaft head plate of the second ore pass, and then install the sinking derrick near the wellhead and other hoisting components into the second ore pass, and connect the hoisting winch, the first sinking winch, and the second sinking winch to the second ore pass to carry out excavation and support or wall lining support for the second ore pass to complete the construction of the second ore pass, so as to arrange a set of hoisting equipment on both sides of the connection line of the two ore pass center lines. After serving the construction of one ore pass, without adjusting the hoisting equipment, serve the construction of the other ore pass. That is: a set of fixed hoisting equipment serves the excavation and lining construction of two ore passes in sequence. The design is simple, reducing engineering preparation. That is, for two adjacent ore passes, a set of hoisting equipment is arranged as a whole design, which is relatively simple. The hoisting winch foundation, the sinking winch foundation, etc., and the hoisting equipment are constructed and installed at one time and continue to be used after the construction of one ore pass; the process is simple and the operation is convenient. The sinking derrick is moved as a whole, without being disassembled and installed layer by layer or piece by piece. There is no need to disassemble the hanging platform at the bottom of the well and the shaft head plate at the wellhead as in the conventional method. Instead, the hanging platform is lifted to the wellhead and fixed to the shaft head plate as a whole for demolition and can continue to be used, which is convenient for operation and saves costs.

[0043] As described above, the hoisting method of two adjacent surface ore passes according to the present invention is described by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various improvements can be made to the above-mentioned hoisting method of two adjacent surface ore passes proposed by the present invention without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the appended claims.

Claims

1. A hoisting method for two adjacent ore passes on the ground surface, characterized in that, Including: The well centers connecting the first ore pass and the second ore pass form an ore pass center line, and a hoisting winch is arranged on the extension line of the ore pass center line; A first sinking winch and a second sinking winch are arranged on both sides of the ore pass center line; wherein, the first sinking winch is close to the first ore pass, and the second sinking winch is close to the second ore pass; After the first ore pass and the second ore pass are excavated to a preset depth, the first ore pass and the second ore pass are concreted to form a hoisting foundation; Based on the hoisting foundation of the first ore pass, connect the hoisting winch, the first sinking winch, and the second sinking winch to the first ore pass, and install a sinking derrick, a hanging platform, a sealing plate, and other hoisting components into the first ore pass to carry out tunneling support or wall brushing support on the first ore pass to complete the construction of the first ore pass; Start the first sinking winch and the second sinking winch to lift the hanging platform to a position close to the sealing plate, and fix the main beams of the hanging platform and the sealing plate as a movable integral structure through fixing parts; Move the whole sinking derrick from the first ore pass to near the wellhead of the second ore pass, and based on the hoisting foundation of the second ore pass, move the movable integral structure to the preset positions of the hanging platform and the sealing plate of the second ore pass, and then install the sinking derrick near the wellhead and other hoisting components into the second ore pass, and connect the hoisting winch, the first sinking winch, and the second sinking winch to the second ore pass to carry out tunneling support or wall brushing support on the second ore pass to complete the construction of the second ore pass.

2. The hoisting method for two adjacent surface ore passes according to claim 1, characterized in that The fixing part is a steel wire rope.

3. The hoisting method for two adjacent surface ore passes according to claim 2, characterized in that The other hoisting components include a hoisting crown block, a suspension crown block, a hoisting rope, a suspension rope, and a kibble.

4. The hoisting method for two adjacent surface ore passes according to claim 3, characterized in that The hoisting crown block, the suspension crown block, and the whole sinking derrick are transferred from the first ore pass to the second ore pass together.

5. The hoisting method for two adjacent surface ore passes according to claim 4, characterized in that The whole sinking derrick with the hoisting crown block and the suspension crown block is moved from the first ore pass to near the wellhead of the second ore pass by a crane.

6. The hoisting method for two adjacent surface ore passes as described in claim 5, characterized in that, Before the whole sinking derrick with the hoisting crown block and the suspension crown block is moved from the first ore pass to near the wellhead of the second ore pass by a crane, it includes: Remove the hoisting rope, the suspension rope, and the kibble for standby.

7. The hoisting method for two adjacent surface ore passes as described in claim 6, characterized in that, After installing the sinking derrick near the wellhead and other hoisting components into the second ore pass, the process of connecting the hoisting winch, the first sinking winch, and the second sinking winch to the second ore pass includes: Suspend the hoisting rope between the hoisting winch and the hoisting crown block; connect the suspension rope between the first sinking winch, the second sinking winch and the suspension crown block; hang the kibble on the sinking derrick.

8. The hoisting method for two adjacent surface ore passes as claimed in claim 1, wherein the hoisting foundation at least includes a derrick foundation.

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