Heat damage prevention and control device for ultra-deep vertical shaft
Through the design of air ducts made of flexible materials and removable shields, the heat damage problem caused by the unfixed working location of workers in ultra-deep shaft mines is solved, and multi-point cold air coverage and flexible air flow distribution are achieved, reducing operation difficulty and heat damage risks.
Patent Information
- Application Number
- CN202422582127.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-25
AI Technical Summary
In the ultra-deep vertical shaft mine, the working location of the workers is not fixed and scattered, the existing air duct cannot move frequently after being suspended, and the range of the wind current DC area is small, which cannot ensure that the workers are always working in the wind current DC area, resulting in frequent high temperature and heat damage problems.
The air barrel and shielding member are made of air-impermeable flexible materials. The side wall of the air barrel is equipped with a side wall air outlet, and the shielding member is detachable. By disassembling the shield at the working site to expose the air outlet, the cold air is discharged from the side wall air outlet, and combined with the support frame and the removable connection device, the cold air coverage in the multi-point operating area is achieved.
It effectively reduces the ambient temperature in the mine cave, prevents heat damage problems, simplifies the installation and disassembly of the air duct, adapts to complex terrain, and improves the flexibility and range of wind flow coverage.
Smart Images
Figure CN223136181U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of heat damage prevention and control in deep shaft mines, and particularly relates to a heat damage prevention and control device for ultra-deep vertical shafts. Background Art
[0002] At present, during the mining of mineral resources, mines with a mining depth exceeding 800m are usually defined as deep shaft mining, and high-temperature heat damage is a typical problem faced by deep shaft mining. According to statistics, the geothermal gradient of rock strata usually increases at a rate of 2.5 - 3℃ / 100m. That is, when the mining depth reaches 1000m, the temperature of the underground working face is likely to exceed 30℃. At the same time, the high-temperature environment is prone to bring derivative problems such as high humidity. The underground water inflow evaporates through the high temperature, causing the humidity of the working face to rise linearly. Especially in deep coastal mines, the problems of high temperature and high humidity in the underground working face are serious, and the working environment is harsh. This situation is even more serious during the mining process of ultra-deep vertical shafts (with a mining depth of about 1500m). In existing deep coastal ultra-deep vertical shaft mines, the temperature of the underground tunneling working face has exceeded 40℃, and the humidity has reached more than 95%, and the heat damage problem is extremely serious.
[0003] The heat damage problem is likely to affect the working effect, and at the same time, it will also cause problems such as heat stroke and heat exhaustion for workers, and may even be fatal in severe cases. There are two traditional methods for heat damage prevention and control: one is to install air ducts to provide fresh air flow for the working face. When the heat damage is serious, a refrigeration station can be installed on the ground to reduce the temperature of the incoming air flow; the other is to install a refrigeration system or refrigeration equipment underground. However, most of the underground refrigeration equipment relies on refrigerants to cool the air flow, and the refrigeration effect of the equipment and the transportation cost of the refrigerants are the key points restricting the popularization and application of underground refrigeration equipment. The excessively high cooling cost makes it not widely accepted. Therefore, the most common way to cool down is to rely on the combination of a surface refrigeration system and air ducts. However, the working locations of workers are not fixed and are relatively scattered. After the air ducts are hung, they cannot be moved frequently, and the range of the direct air flow area is also small, which cannot ensure that workers are always working in the direct air flow area, resulting in frequent heat damage problems caused by high temperature. Utility Model Content
[0004] In view of the technical problems existing in the background art, this application provides a heat damage prevention and control device for ultra-deep vertical shafts, which can effectively prevent heat damage problems caused by high temperature in the mine tunnel.
[0005] In a first aspect, an embodiment of the present application provides a device for preventing heat damage in ultra-deep vertical shafts, including a refrigeration device, a ventilation duct, a shielding member, and a support frame. The ventilation duct and the shielding member are both made of airtight flexible materials. The ventilation duct is connected to the air outlet of the refrigeration device, and the support frame is arranged in the passage of the ventilation duct to support the ventilation duct. Among them, a sidewall air outlet is further provided on the sidewall of the ventilation duct for the air flow in the ventilation duct to discharge; the shielding member is detachably arranged on the sidewall of the ventilation duct to shield the sidewall air outlet.
[0006] In the technical solution of the embodiment of the present application, cold air is blown into the ventilation duct by the refrigeration device and flows along the passage of the ventilation duct. The staff in the mine tunnel remove the shielding member corresponding to the location of the operation site, so that the sidewall air outlet on the sidewall of the ventilation duct is exposed, and then the cold air flowing in the ventilation duct can be discharged from the sidewall air outlet to reduce the environmental temperature in the operation area and effectively prevent the heat damage problem caused by high temperature in the mine tunnel.
[0007] In some embodiments, the ventilation duct and the shielding member are made of canvas material.
[0008] In this embodiment, the ventilation duct made of canvas can not only greatly simplify the process of the staff installing and disassembling the ventilation duct, but also adapt to various complex terrains and space requirements in the mine tunnel.
[0009] In some embodiments, one side of the shielding member is fixedly connected to the sidewall of the ventilation duct, and a zipper is further provided on the side edge of the shielding member. The shielding member is detachably covered on the sidewall of the ventilation duct through the zipper, and when the shielding member covers the sidewall of the ventilation duct, the shielding member wraps the sidewall air outlet.
[0010] In this embodiment, when a certain section of the barrel body of the ventilation duct is at a non-operation site, the shielding member is detachably covered on the sidewall of the ventilation duct through the zipper, so that the shielding member wraps the sidewall air outlet, and then the ventilation duct will not leak air, so that the air flow size can reach the predetermined working site smoothly according to the design value; when a certain section of the barrel body of the ventilation duct is at the operation site, only need to open the zipper to uncover the shielding member from the sidewall of the ventilation duct, so that the sidewall air outlet on the sidewall of the ventilation duct is exposed, greatly reducing the operation difficulty of the staff; secondly, one side of the shielding member is fixed on the ventilation duct, so when the sidewall air outlet of the ventilation duct sidewall is opened, the shielding member can hang on the sidewall of the ventilation duct, further reducing the operation difficulty of the staff.
[0011] In some embodiments, multiple groups of the sidewall air outlets are provided on the sidewall of the ventilation duct.
[0012] In this embodiment, by providing multiple groups of sidewall air outlets on the sidewall of the air duct, it can be ensured that any working location along the entire air duct is within the area covered by the direct flow of air current, thereby realizing the prevention and control of heat damage in different states of multiple working areas.
[0013] In some embodiments, the support frame includes a plurality of support rings, and the plurality of support rings are sequentially arranged at intervals along the axial direction of the air duct inside the air duct.
[0014] In this embodiment, by providing a plurality of independent support rings inside the air duct, not only can the air duct made of flexible materials be supported to ensure the smooth flow of cold air inside the air duct, but also the flexibility of the air duct can be ensured.
[0015] In some embodiments, a detachable connection device is further provided at one end of the air duct far from the connection with the refrigeration device, and the detachable connection device is used to connect adapters with different functions.
[0016] In this embodiment, through the detachable connection device, adapters with different functions can be connected at one end of the air duct far from the connection with the refrigeration device according to needs, further increasing the practicality of the heat damage prevention and control device for ultra-deep vertical shafts.
[0017] In some embodiments, the adapter includes a first adapter. The first end of the first adapter has an open structure, and the second end of the first adapter has a hemispherical closed structure. The first end of the first adapter is connected to the air duct through the detachable connection device, and a plurality of air outlets are provided at the second end of the first adapter, and the plurality of air outlets are evenly arranged at the second end of the first adapter.
[0018] In this embodiment, by evenly arranging a plurality of air outlets at the second end of the first adapter, cold air can be ejected from multiple angles, so that the heat damage prevention and control device for ultra-deep vertical shafts can discharge cold air in a larger range.
[0019] In some embodiments, the adapter includes a second adapter. One end of the second adapter is connected to the air duct through the detachable connection device, and a plurality of independent ventilation channels are provided at the other end of the second adapter.
[0020] In this embodiment, through the plurality of independent ventilation channels provided at the other end of the second adapter, the heat damage prevention and control device for ultra-deep vertical shafts can simultaneously deliver cold air to multiple different working areas.
[0021] In some embodiments, a plurality of the air ducts are provided, and the plurality of air ducts are sequentially connected end to end through the detachable connection device.
[0022] In this embodiment, different numbers of air ducts can be selected according to requirements and connected end to end in sequence, further reducing the laying difficulty of the air ducts in the ultra-deep shaft heat damage prevention device.
[0023] In some embodiments, the detachable connection device is a zipper.
[0024] In this embodiment, a zipper is used as the connecting piece between the adapter and the air duct, further reducing the operation difficulty of the staff when using the ultra-deep shaft heat damage prevention device.
[0025] The above description is only an overview of the technical solution of this application. In order to be able to understand the technical means of this application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of this application more obvious and understandable, the following specific embodiments of this application are specifically given. Brief Description of the Drawings
[0026] In order to more clearly illustrate the technical solution of this application, the drawings used in this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0027] Figure 1 It is a schematic structural diagram of the ultra-deep shaft heat damage prevention device in the embodiment of this application;
[0028] Figure 2 It is a schematic structural diagram of the first adapter in the embodiment of this application;
[0029] Figure 3 It is a schematic diagram of the usage state of the first adapter in the embodiment of this application;
[0030] Figure 4 It is a schematic structural diagram of the second adapter in the embodiment of this application;
[0031] Figure 5 It is a schematic diagram of the usage state of the second adapter in the embodiment of this application;
[0032] Figure 6 It is a schematic diagram of the usage state when multiple air ducts are connected end to end in sequence in the embodiment of this application.
[0033] Explanation of the Reference Numerals:
[0034] 1, refrigeration device; 2, air duct; 3, shielding member; 4, support frame; 5, side wall air outlet;
[0035] 6, zipper; 7, detachable connection device; 8, first adapter; 9, second adapter;
[0036] 10. Air outlet. Detailed implementation manners
[0037] The embodiments of the technical solution of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application.
[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.
[0039] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, "a plurality of" means more than two, unless otherwise specifically defined.
[0040] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.
[0041] In the description of the embodiments of this application, the term "and / or" is only a description of the associated relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.
[0042] In the description of the embodiments of this application, the term "a plurality of" refers to more than two (including two). Similarly, "a plurality of groups" refers to more than two groups (including two groups), and "a plurality of pieces" refers to more than two pieces (including two pieces).
[0043] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of the present application.
[0044] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "coupling", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0045] During the process of mineral resource extraction, mines with a mining depth exceeding 800 m are usually defined as deep-well mining, and high-temperature heat damage is a typical problem faced by deep-well mining. According to statistics, the geothermal gradient of rock strata usually increases at a rate of 2.5 - 3 °C / 100 m. That is, when the mining depth reaches 1000 m, the temperature of the underground working face is likely to exceed 30 °C. At the same time, a high-temperature environment is likely to bring derivative problems such as high humidity. The underground water inflow evaporates through high temperature, causing the humidity of the working face to rise linearly. Especially in deep coastal mines, the problems of high temperature and high humidity on the underground working face are serious, and the working environment is harsh. This situation is even more serious during the extraction process of ultra-deep vertical shafts (with a mining depth of about 1500 m). In existing deep coastal ultra-deep vertical shaft mines, the temperature of the underground tunneling working face has exceeded 40 °C, and the humidity has reached more than 95%, and the heat damage problem is extremely serious.
[0046] The problem of heat damage not only easily affects the working effect, but also causes problems such as heat stroke and heat exhaustion for workers, and may even lead to death in severe cases. There are two traditional methods for preventing and controlling heat damage: one is to install a ventilation duct 2 to provide fresh air flow for the working face. When the heat damage is severe, a refrigeration station can be installed on the ground surface to reduce the temperature of the incoming air flow; the other is to install a refrigeration system or refrigeration equipment underground. However, most underground refrigeration equipment relies on refrigerants to cool the air flow. The refrigeration effect of the equipment and the transportation cost of the refrigerants are the key points restricting the popularization and application of underground refrigeration equipment. The excessively high cooling cost makes it not widely accepted. Therefore, the combination of the surface refrigeration system and the ventilation duct 2 is the most commonly used method for cooling. However, since the working locations of workers are not fixed and are relatively scattered, the ventilation duct 2 cannot be frequently moved after being hung, and the range of the direct air flow area is also small, which cannot ensure that workers are always working in the direct air flow area. This has led to frequent occurrences of heat damage problems caused by high temperatures.
[0047] In order to solve the technical problems that due to the non-fixed and relatively scattered working locations of workers, the ventilation duct 2 cannot be frequently moved after being hung, the range of the direct air flow area is small, and it cannot ensure that workers are always working in the direct air flow area, this application provides a heat damage prevention and control device for ultra-deep vertical shafts. Among them, through the ventilation duct 2 made of airtight flexible material and the side wall air outlet 5 arranged on the side wall of the ventilation duct 2, the technical effect that any working location along the entire ventilation duct 2 can be in the direct air flow coverage area can be achieved.
[0048] Please refer to Figure 1 , Figure 1 FIG. is the structural schematic diagram of the heat damage prevention and control device for ultra-deep vertical shafts provided by the embodiment of the present application, including a refrigeration device 1, a ventilation duct 2, a shielding member 3 and a support frame 4. Both the ventilation duct 2 and the shielding member 3 are made of airtight flexible materials. The ventilation duct 2 is connected to the air outlet of the refrigeration device 1. The support frame 4 is arranged in the channel of the ventilation duct 2 for supporting the ventilation duct 2; a side wall air outlet 5 is also provided on the side wall of the ventilation duct 2 for the air flow in the ventilation duct 2 to be discharged; the shielding member 3 is detachably arranged on the side wall of the ventilation duct 2 for shielding the side wall air outlet 5.
[0049] Specifically, the ventilation duct 2 made of flexible material is laid along the mine tunnel, and the ventilation duct 2 is hung and fixed on the inner wall of the roadway. The shielding member 3 is arranged on the side wall of the ventilation duct 2, and then the side wall air outlet 5 on the side wall of the ventilation duct 2 is shielded. During use, the refrigeration device 1 is started, and the refrigeration device 1 blows cold air into the ventilation duct 2 and makes it flow along the channel of the ventilation duct 2. The workers in the mine tunnel remove the shielding member 3 at the corresponding working location, so that the side wall air outlet 5 on the side wall of the ventilation duct 2 is exposed, and then the cold air flowing in the ventilation duct 2 can be discharged from the side wall air outlet 5 to reduce the environmental temperature in the working area and effectively prevent the heat damage problem caused by high temperature in the mine tunnel.
[0050] Furthermore, in the embodiment of the present application, the wind duct 2 and the shielding member 3 are made of canvas material. The canvas is not only highly flexible and light in weight, but also has excellent durability, wear resistance, tightness and thickness. Therefore, the wind duct 2 made of canvas can not only greatly simplify the process of installing and disassembling the wind duct 2 by the staff, but also can adapt to various complex terrains and space requirements in the mine.
[0051] Furthermore, in the embodiment of the present application, one side of the shielding member 3 is fixedly connected to the side wall of the wind duct 2, and a zipper 6 is also provided on the side of the shielding member 3. The shielding member 3 can be removably covered on the side wall of the wind duct 2 through the zipper 6. When a certain section of the wind duct 2 is in a non-operating location, the shielding member 3 can be removably covered on the side wall of the wind duct 2 through the zipper 6, so that the shielding member 3 wraps the side wall air outlet 5, and then the wind duct 2 will not leak air, so that the wind flow size can smoothly reach the predetermined working location according to the designed value; and when a certain section of the wind duct 2 is in the operating location, the shielding member 3 can be removed from the side wall of the wind duct 2 by simply pulling open the zipper 6, so that the side wall air outlet 5 on the side wall of the wind duct 2 is exposed, which greatly reduces the operating difficulty of the staff; secondly, one side of the shielding member 3 is fixed on the wind duct 2, so when the side wall air outlet 5 on the side wall of the wind duct 2 is opened, the shielding member 3 can be hung on the side wall of the wind duct 2, which further reduces the operating difficulty of the staff.
[0052] Furthermore, in the embodiment of the present application, the side wall of the wind duct 2 is provided with a plurality of groups of side wall air outlets 5. In the embodiment, a plurality of groups of side wall air outlets 5 are provided on the side wall of the wind duct 2, which can ensure that any work location along the entire wind duct 2 can be within the direct airflow coverage area, thereby achieving heat damage prevention and control in different conditions in multiple working areas.
[0053] Furthermore, in an embodiment of the present application, the support frame 4 includes a plurality of support rings, and the plurality of support rings are arranged in sequence and at intervals in the wind duct 2 along the axial direction of the wind duct 2. By arranging a plurality of independent support rings in the wind duct 2, it is possible not only to support the wind duct 2 made of flexible material and ensure the smooth flow of cold air in the wind duct 2, but also to ensure the flexibility of the wind duct 2.
[0054] Furthermore, in the embodiment of the present application, a detachable connecting device 7 is also provided at the end of the air duct 2 away from the connection to the refrigeration device. Through the detachable connecting device 7, adapters with different functions can be connected to the end of the air duct 2 away from the connection to the refrigeration device as needed, thereby further increasing the practicality of the ultra-deep shaft heat damage prevention and control device.
[0055] For further information, please refer to Figure 2-3, in the embodiment of the present application, the adapter includes a first adapter 8. The first end of the first adapter 8 is of an open structure, and the second end of the first adapter 8 is of a hemispherical closed structure. The first end of the first adapter 8 is connected to the air duct 2 through a detachable connection device 7. The second end of the first adapter 8 is provided with a plurality of air outlets, and the plurality of air outlets 10 are evenly arranged at the second end of the first adapter 8. When the cold air is discharged from the air outlets on the first adapter 8, the cold air can be ejected from multiple angles, so that the device for preventing and controlling heat damage in ultra-deep shafts can discharge cold air over a larger range.
[0056] Further, please refer to Figure 4-5 , in the embodiment of the present application, the adapter includes a second adapter 9. One end of the second adapter 9 is connected to the air duct 2 through a detachable connection device 7, and the other end of the second adapter 9 is provided with a plurality of independent ventilation channels, so that the device for preventing and controlling heat damage in ultra-deep shafts can simultaneously convey cold air to multiple different working areas.
[0057] Further, please refer to Figure 6 , in the embodiment of the present application, the device for preventing and controlling heat damage in ultra-deep shafts can be provided with a plurality of air ducts 2. The plurality of air ducts 2 can be sequentially connected end to end through a detachable connection device 7. During use, different numbers of air ducts 2 can be selected according to requirements and connected end to end in sequence, further reducing the laying difficulty of the air ducts 2 in the device for preventing and controlling heat damage in ultra-deep shafts.
[0058] Further, in the embodiment of the present application, the detachable connection device 7 for connecting the adapter to the air duct 2 can be a zipper, further reducing the operation difficulty of the staff when using the device for preventing and controlling heat damage in ultra-deep shafts.
[0059] It should be noted that the present application is not limited to the above embodiments. The above embodiments are only examples, and embodiments having the same composition and playing the same role and effect as the technical idea within the technical solution scope of the present application are all included in the technical scope of the present application. In addition, within the scope not departing from the gist of the present application, various deformations that can be thought of by those skilled in the art are applied to the embodiments, and other ways constructed by combining some constituent elements in the embodiments are also included in the scope of the present application.
Claims
1. A device for preventing and controlling heat damage in ultra-deep vertical shafts, characterized in that, It includes a refrigeration device, a wind tube, a shielding member and a support frame. Both the wind tube and the shielding member are made of airtight flexible materials. The wind tube is connected to the air outlet of the refrigeration device, and the support frame is arranged in the channel of the wind tube to support the wind tube. Wherein, a side wall air outlet is further provided on the side wall of the wind tube for the air flow in the wind tube to discharge; the shielding member is detachably arranged on the side wall of the wind tube to shield the side wall air outlet.
2. The hyper-deep shaft heat damage prevention and control device according to claim 1, characterized in that, The wind tube and the shielding member are made of canvas materials.
3. The hyper-deep shaft heat damage prevention and control device according to claim 1, characterized in that One side of the shielding member is fixedly connected to the side wall of the wind tube, and a zipper is further provided on the side edge of the shielding member. The shielding member is detachably covered on the side wall of the wind tube through the zipper, and when the shielding member covers the side wall of the wind tube, the shielding member wraps the side wall air outlet.
4. The ultra-deep shaft heat damage prevention and control device according to claim 2, characterized in that, Multiple groups of the side wall air outlets are provided on the side wall of the wind tube.
5. The hyper-deep shaft heat damage prevention and control device according to claim 1, characterized in that, The support frame includes a plurality of support rings, and the plurality of support rings are sequentially and spaced apart along the axial direction of the wind tube in the wind tube.
6. The hyper-deep shaft heat damage prevention and control device according to claim 1, characterized in that, A detachable connection device is further provided at one end of the wind tube away from the connection with the refrigeration device, and the detachable connection device is used to connect adapters with different functions.
7. The hyper-deep shaft heat damage prevention and control device according to claim 6, characterized in that The adapter includes a first adapter. The first end of the first adapter has an open structure, the second end of the first adapter has a hemispherical closed structure, the first end of the first adapter is connected to the wind tube through the detachable connection device, and a plurality of air outlets are provided at the second end of the first adapter, and the plurality of air outlets are evenly arranged at the second end of the first adapter.
8. The hyper-deep shaft heat damage prevention and control device according to claim 6, characterized in that, The adapter includes a second adapter. One end of the second adapter is connected to the wind tube through the detachable connection device, and a plurality of independent ventilation channels are provided at the other end of the second adapter.
9. The hyperdeep shaft heat damage prevention and control device according to claim 6, characterized in that, A plurality of the wind tubes are provided, and the plurality of wind tubes are sequentially connected end to end through the detachable connection device.
10. The hyperdeep shaft heat damage prevention and control device according to any one of claims 6-9, characterized in that, The detachable connection device is a zipper.