An ionic rare earth mine tunnel support structure
By designing a rare earth mine tunnel support structure including trapezoidal tunnel body, support device and guard network, the problems of landslide, poor safety and low mining efficiency in the rare earth mother liquor collection method are solved, and more efficient rare earth mother liquor collection and tunnel protection are achieved.
Patent Information
- Application Number
- CN202422127813.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The existing rare earth mother liquor collection methods have the possibility of collapse and blockage of mother liquor collection holes, poor safety, slow liquid infiltration into the mountains, and low mining efficiency, resulting in a longer mining cycle of ionic rare earth mines.
An ionic rare earth mine tunnel support structure is designed, including a tunnel body, a support device and a guard net. The tunnel body is a trapezoidal structure with shallow grooves at the bottom and cement mortar and thatch are laid on the surface of the shallow groove. The support device consists of a top rod, a support rod and a connecting rod, and is installed in the tunnel body. The guard net covers both sides and the top of the support device.
Through this support structure, the efficiency of rare earth mother liquor collection is improved, the loss of mother liquor is prevented, the stability and safety of the tunnel is enhanced, and the mining cycle is shortened.
Smart Images
Figure CN222701984U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of ion type rare earth ore mining, and more specifically, particularly relates to an ion type rare earth mine tunnel support structure. Background Art
[0002] In the mining of ionic rare earth mines, it is necessary to drill holes on the top of the ore body and inject the prepared liquid. The prepared liquid infiltrates into the mountain body for ion exchange to obtain rare earth mother liquor, and then collect the rare earth mother liquor from the bottom. At present, the rare earth mother liquor is collected by densely drilling and hollowing out at the bottom. In the existing rare earth mother liquor collection method, the mother liquor collection hole is prone to collapse and blockage, which is poor in safety. The speed of the prepared liquid infiltrating into the mountain body is slow, and the mining efficiency is low, resulting in a long mining cycle for ionic rare earth mines.
[0003] The disclosure of the above background technology content is only used to assist in understanding the utility model concept and technical solution of the utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of this application. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides an ionic rare earth mine tunnel support structure to solve the problems of the existing rare earth mother liquor collection method, such as the mother liquor collection hole is easy to collapse and block, poor safety, slow liquid infiltration into the mountain, low mining efficiency, and a long mining cycle of ionic rare earth mines. The above problems are solved by the following specific technical means:
[0005] An ionic rare earth mine tunnel support structure comprises a tunnel body, a support device and a protective net, wherein the tunnel body is a trapezoidal structure, a shallow groove is provided at the center of the tunnel bottom, and thatch is laid on the upper part of the shallow groove; the support device comprises a support frame and a connecting rod, the support frame comprises a top rod and a support rod, the lower parts of both ends of the top rod are respectively provided with sleeves, the lower parts of the support rods are provided with threaded holes, and the support rods are respectively installed in the sleeves; mounting holes are respectively provided at both ends of the connecting rod, and the connecting rods are respectively connected to the support rods on both sides of the support frame to connect multiple groups of support frames together; the support device is installed in the tunnel body and its bottom end is inserted into the bottom of the tunnel body; the protective net covers both sides and the top of the support device.
[0006] Furthermore, the connecting rods are respectively connected to the support rods on both sides of the support frame, and multiple groups of support frames are connected together by locking bolts in cooperation with the threaded holes and the mounting holes.
[0007] Furthermore, a sedimentation tank is provided at the tail of the tunnel body.
[0008] Furthermore, cement mortar is laid on the bottom of the tunnel body and the surface of the shallow groove, and the shallow groove is in an inverted trapezoidal shape.
[0009] Furthermore, the top rod, support rod and connecting rod are all galvanized pipes.
[0010] Furthermore, the sleeves at both ends of the push rod form an angle of 96° with the push rod.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] 1. The tunnel structure of the utility model is excavated at the bottom of the ionic rare earth mine. The tunnel structure is trapezoidal in shape, has a stable structure and can accelerate the penetration of the top of the mountain into the ore body. A shallow ditch is provided at the bottom of the tunnel to collect the rare earth mother liquor and guide it out of the mountain.
[0013] 2. The supporting device of the utility model is composed of a top rod, a support rod and a connecting rod. The structure is simple, stable and easy to install. By installing the supporting device and the protective net in the tunnel, the tunnel protection and personnel safety protection can be achieved.
[0014] 3. By laying cement mortar at the bottom of the tunnel and the surface of the shallow ditch, the collected rare earth mother liquor can be prevented from continuing to penetrate downward, the loss of rare earth mother liquor can be prevented, and the collection efficiency of rare earth mother liquor can be improved.
[0015] 4. The utility model solves the problems of the existing rare earth mother liquor collection method, such as the mother liquor collection hole is prone to collapse and blockage, poor safety, slow liquid infiltration into the mountain, low mining efficiency, and a long mining cycle of ionic rare earth mines. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model.
[0017] Figure 2 It is a structural schematic diagram of the bottom of the tunnel body of the utility model.
[0018] Figure 3 It is the front view of the supporting device of the utility model.
[0019] Figure 4 It is a left view of the supporting device of the utility model.
[0020] Figure 5 It is a schematic diagram of the structure of the left part of the supporting device of the utility model in coordination with the protective net.
[0021] Figure 6 It is a front view of the push rod of the utility model.
[0022] Figure 7 It is a top view of the push rod of the utility model.
[0023] Figure 8 It is a left side view of the push rod of the utility model.
[0024] Fig. 9 It is a structural schematic diagram of the support rod of the utility model.
[0025] Fig.10 This is a schematic diagram of the structure of the connecting rod of the utility model.
[0026] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:
[0027] 1. Tunnel body; 2. Support device; 3. Protective net; 4. Shallow ditch; 5. Thatch; 6. Sedimentation tank; 7. Cement mortar; 8. Support frame; 9. Connecting rod; 10. Top rod; 11. Support rod; 12. Casing; 13. Threaded hole; 14. Mounting hole. DETAILED DESCRIPTION
[0028] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0029] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0031] Example:
[0032] As attached Figure 1 To Attachment Fig.10 As shown:
[0033] The utility model provides an ionic rare earth mine tunnel support structure and a tunnel excavation support method, comprising a tunnel body 1, a support device 2 and a protective net 3, wherein the tunnel body 1 is a trapezoidal structure with a stable structure, a shallow groove 4 is arranged at the bottom center of the tunnel body 1 for collecting rare earth mother liquor, the shallow groove 4 is an inverted trapezoidal shape, thatch 5 is laid on the upper part of the shallow groove 4 for blocking gravel or silt to prevent the shallow groove 4 from being blocked, a sedimentation tank 6 is arranged at the tail of the tunnel body 1 for filtering and precipitating particulate impurities in the recovered mother liquor, cement mortar 7 is laid on the bottom of the tunnel body 1 and the surface of the shallow groove 4, which can prevent the collected rare earth mother liquor from continuing to penetrate downward, prevent the rare earth mother liquor from being lost, and improve the collection efficiency of the rare earth mother liquor; the support device 2 comprises a support frame 8 and a connecting rod 9, the The support frame 8 includes a top rod 10 and a support rod 11. The lower parts of both ends of the top rod 10 are respectively provided with sleeves 12 for connecting the support rod 11. The sleeves 12 at both ends of the top rod 10 form a 96° angle with the top rod 10. The lower part of the support rod 11 is provided with threaded holes 13 for installing connecting rods 9. The support rods 11 are respectively installed in the sleeves 12; both ends of the connecting rod 9 are respectively provided with mounting holes 14 for connecting with the support rods 11. The connecting rods 9 are respectively connected to the support rods 11 on both sides of the support frame 8 to connect multiple groups of support frames 8 together; the support device 2 is installed in the tunnel body 1 and its bottom end is inserted into the bottom of the tunnel body 1; the protective net 3 covers both sides and the top of the support device 2 to prevent large falling rocks from falling and causing personal safety.
[0034] The connecting rods 9 are respectively connected to the supporting rods 11 on both sides of the supporting frame 8, and multiple groups of supporting frames 8 are connected together by locking with bolts in cooperation with the threaded holes 13 and the mounting holes 14.
[0035] The top rod 10, the support rod 11 and the connecting rod 9 are all galvanized pipes, which can prevent rust in a high humidity environment for a long time.
[0036] An excavation and support method for an ionic rare earth mine tunnel support structure comprises the following steps:
[0037] S1: Tunnel excavation; Exploration of the ionic rare earth mine is carried out, and a tunnel excavation route plan is formulated. After the excavation route is determined, the tunnel excavation is carried out manually, and a handheld pneumatic pick (Kaishan G20) is used to assist in the excavation. No blasting is required. The tunnel adopts a trapezoidal cross-section with the following specifications: bottom width 1.2m, top width 0.8m, height 1.8m; each main tunnel must have no less than 2 people to cooperate with the construction, check the operation of machinery before work, carefully check and deal with the floating stones on the side of the work site to avoid mechanical damage; construction personnel are equipped with self-rescuers, portable gas alarms, masks, earplugs and other protective equipment to avoid accidents such as poisoning, suffocation, mechanical injuries, and electric shocks. Portable mining lamps are used for tunnel construction lighting to ensure good lighting at the work site; to enhance ventilation during tunnel excavation, the mine adopts pressure ventilation and selects JK58-1No.3 mine local ventilator (1.5KW), which is matched with a 300mm diameter wind tube for air supply to ensure that tunnel excavation workers have sufficient fresh air flow; when the tunnel single-head excavation length exceeds 30m, it is connected with the adjacent tunnel to ensure multiple safe exits; the tunnel slope is 3 to 8° downslope to the lower entrance, and a sedimentation tank is excavated at the entrance of the main tunnel of the tunnel to filter and precipitate particulate impurities in the recovered mother liquor. The sedimentation tank is 0.6m long, 0.6m wide and 0.5m deep, and cement mortar is used for waterproofing.
[0038] S2: Installation of support device; connect the support rod 11 to the casing 12 at the lower part of the two ends of the top rod 10 to form a support frame 8. The support frame 8 is installed in time with the tunnel excavation. One support frame 8 is installed every meter. The two support frames 8 are fixed by connecting rods 9. In areas where the ore body is relatively broken or water seepage, a support frame 8 is strengthened to support the excavation while preventing sudden roof collapse and mud-rock flow accidents; while installing the support frame 8, the protective net 3 is covered on both sides and the top.
[0039] S3: shallow trench construction: construct a shallow trench 4 at the bottom of the tunnel body 1 (the shallow trench 4 is an inverted trapezoidal cross section, 0.2m high and 0.3m wide at the bottom), and lay cement mortar 7 at the bottom of the tunnel body 1 and on the surface of the shallow trench 4 to form an artificial anti-seepage false bottom, and then lay thatch 5 on the upper part of the shallow trench 4;
[0040] S4: Waste rock treatment: There are two ways to treat waste rock from tunnel excavation: (1) During construction, the waste rock from tunnel excavation is spread out along the foot of the hill or the platform of the collection ditch around the tunnel entrance. The spreading height should not exceed 1m. After the tunnel construction is completed, vegetation is planted for restoration; (2) Based on the overall layout of the mining area, the tunnel waste soil is discharged in a centralized manner.
[0041] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.
Claims
1. An ionic rare earth mine tunnel support structure, characterized in that: It includes a tunnel body, a supporting device and a protective net. The tunnel body is a trapezoidal structure. A shallow groove is provided in the center of the tunnel bottom, and thatch is laid on the upper part of the shallow groove. The supporting device includes a supporting frame and a connecting rod. The supporting frame includes a top rod and a supporting rod. The lower parts of both ends of the top rod are respectively provided with sleeves, and the lower parts of the supporting rods are provided with threaded holes, and the supporting rods are respectively installed in the sleeves; both ends of the connecting rods are respectively provided with mounting holes, and the connecting rods are respectively connected to the supporting rods on both sides of the supporting frame to connect multiple groups of supporting frames together; the supporting device is installed in the tunnel body and its bottom end is inserted into the bottom of the tunnel body; the protective net covers both sides and the top of the supporting device.
2. An ionic rare earth mine tunnel support structure as claimed in claim 1, characterized in that: The connecting rods are respectively connected to the supporting rods on both sides of the supporting frame, and multiple groups of supporting frames are connected together by locking with bolts in cooperation with the threaded holes and the mounting holes.
3. An ionic rare earth mine tunnel support structure as claimed in claim 1, characterized in that: A sand settling tank is provided at the tail of the tunnel body.
4. An ionic rare earth mine tunnel support structure as claimed in claim 1, characterized in that: The bottom of the tunnel body and the surface of the shallow groove are paved with cement mortar, and the shallow groove is in an inverted trapezoidal shape.
5. The ionic rare earth mine tunnel support structure according to claim 1, characterized in that: The top rod, support rod and connecting rod are all galvanized pipes.
6. An ionic rare earth mine tunnel support structure as claimed in claim 1, characterized in that: The sleeves at both ends of the push rod form an angle of 96° with the push rod.