Mine waste heat recycling device

By exchanging heat with fresh air in the waste heat reuse device in the mining area, the problems of waste heat energy waste and uneven electric heating are solved, efficient utilization of waste heat and uniform heating of fresh air are achieved, and energy utilization efficiency is improved and air supply comfort.

CN222211367UActive Publication Date: 2024-12-20LANZHOU ENG & RES INST OF NONFERROUS METALLURGY CO LTD
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Patent Information

Application Number
CN202420256032.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-02
Publication Date
2024-12-20
Estimated Expiration
2034-02-02

AI Technical Summary

Technical Problem

The waste heat energy generated during mining cannot be effectively utilized, resulting in waste. At the same time, the existing electrical heating methods increase energy consumption and are uneven heating.

Method used

A mining waste heat reuse device is designed. By setting up suction components and heat exchange components in the mining area, the waste heat is used to exchange heat with fresh air, and the heat transfer efficiency is improved by using the heat conduction medium and the insulation frame to ensure uniform heating of fresh air.

Benefits of technology

It effectively reduces energy consumption, improves the efficiency and comfort of air supply, maximizes the use of waste heat energy, and reduces waste heat emissions in the environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mine waste heat recycling, in particular to a mine waste heat recycling device which comprises a mining area for jade mining, the mining area comprises an underground, an air return shaft and a lifting channel are arranged at the underground, and a mine tunnel is arranged at the bottom of the underground and used for jade mining. The top of the mining area is provided with a suction assembly, the suction assembly comprises a fan, one end of the fan is connected with an air outlet pipe, and the air outlet pipe is connected with an air return shaft; by means of the heat exchange assembly matched with the suction assembly, the purpose of heating fresh air can be achieved, in the heating process, waste heat generated by mining is recycled, energy consumption can be effectively reduced, and in the heating process, the heat exchange mode is utilized, and the energy consumption can be effectively reduced under the condition that fresh air feeding is not affected. Fresh air can be evenly heated, the situation that the fresh air is suddenly cold and suddenly hot is avoided, and the air supply efficiency and comfort are improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of mine waste heat recycling, in particular to a mine waste heat recycling device. Background Art

[0002] Waste heat energy generated during the mining process. When digging and processing ore, a large amount of energy is released as waste heat, which would be wasted if not used.

[0003] Its main source is the mechanical energy generated by the machine during mining. When mining in underground mines, the waste heat is taken away by the air circulation through the outer suction components, which is generally wasted.

[0004] According to national standards, the temperature of fresh air sent into a mine must not be lower than 2°C. Therefore, during the air supply process, once it is in a high-altitude cold zone, there will be special heating components to heat the fresh air sent in. These heating components are generally electric heating methods, which not only increases energy consumption, but may also cause uneven heating. Based on this, we propose a mine waste heat recycling device. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a mine waste heat recycling device for solving the problems raised by the above-mentioned background technology.

[0006] The mine waste heat recycling device of the utility model comprises a mining area for jade mining, wherein the mining area comprises an underground, wherein a return air shaft and a lifting passage are arranged at the underground, and a mine tunnel is arranged at the bottom of the underground for jade mining;

[0007] A suction assembly is provided on the top of the mining area, the suction assembly includes a fan, one end of the fan is connected to an air outlet pipe, and the air outlet pipe is connected to a return air shaft;

[0008] The other end of the fan is provided with a connector for connecting to a ventilation pipe;

[0009] A heat exchange component is provided on the top of the mining area on one side of the suction component for heat exchange;

[0010] The heat exchange component comprises a heat preservation frame, and one or more heat exchange fins are arranged inside the heat preservation frame for exchanging heat.

[0011] As a further improvement of the present invention, the inner side of the heat preservation frame is hollow, a winding channel is provided in the hollow area, a pipe is embedded in the inner side of the winding channel, and the inner side of the pipe is filled with a heat-conducting medium.

[0012] As a further improvement of the present invention, air inlets and through-holes are respectively arranged on both sides of the outer wall of the heat-insulating frame, and the through-holes are used for connecting pipelines.

[0013] As a further improvement of the present invention, an air outlet is provided between every two of the heat exchange fins, the air outlet is provided for one-way ventilation, and a heat exchange channel is provided between the heat exchange fins for exchanging heat.

[0014] As a further improvement of the utility model, the return air shaft includes a shaft wall, a return air channel is arranged in the shaft wall, a flange is arranged near the bottom of the return air channel, and a combination frame is installed on the top of the flange.

[0015] As a further improvement of the utility model, a connection port is opened on one side of the well wall, the connection port is located above the combination frame, and the connection port is adapted to the air outlet pipe.

[0016] As a further improvement of the utility model, a plurality of convex strips are arranged in a circular shape on the inner side of the combination frame, a slot is provided between every two convex strips, and a filter component is installed in the slot.

[0017] As a further improvement of the utility model, the lifting channel includes a channel body, a heat exchange cavity is opened in the channel body, and one end of the heat exchange cavity is connected to one end of the pipeline.

[0018] As a further improvement of the utility model, one or more groups of spacer bars are arranged in a circular array on the inner side of the heat exchange chamber, a limiting slide groove is arranged between every two groups of the spacer bars, a supporting frame is slidably connected to the limiting slide groove, and one or more ventilation holes are arranged at the bottom of the supporting frame for air circulation.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] The utility model can heat the fresh air by cooperating with the suction component and the heat exchange component. In the heating process, the waste heat generated by mining can be reused, which can effectively reduce energy consumption. During heating, the heat exchange method is used to evenly heat the fresh air without affecting the fresh air supply, thus avoiding the situation of alternating hot and cold, and improving the efficiency and comfort of air supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1It is a schematic diagram of the front view structure of the mining area, suction assembly and heat exchange assembly combination of the utility model;

[0023] Figure 2 It is a schematic diagram of the top view of the mining area, suction assembly and heat exchange assembly combination of the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the heat exchange component of the utility model;

[0025] Figure 4 This is a schematic diagram of the side view structure of the heat exchange component of the utility model;

[0026] Figure 5 For this utility model Figure 4 Schematic diagram of the structure of the middle BB section;

[0027] Figure 6 This is a schematic diagram of the top view of the heat exchange component of the utility model;

[0028] Figure 7 This is a schematic diagram of the three-dimensional structure of the lifting channel of the utility model;

[0029] Figure 8 This is a schematic diagram of the top view of the lifting channel of the utility model;

[0030] Fig. 9 For this utility model Figure 8 Schematic diagram of the AA section structure;

[0031] Fig.10 This is a schematic diagram of the inner structure of the return air shaft of the utility model;

[0032] Fig.11 This is a schematic diagram of the three-dimensional structure of the combined frame of the utility model;

[0033] Fig.12 This is a side view structural diagram of the combination frame of the utility model;

[0034] Fig.13 For this utility model Fig.12 Schematic diagram of the AA section structure.

[0035] In the figure: 1. Mining area; 2. Suction assembly; 3. Heat exchange assembly;

[0036] 11. Underground; 12. Air return shaft; 13. Lifting passage; 14. Mine tunnel;

[0037] 21. Fan; 22. Connector; 23. Air outlet pipe;

[0038] 31. Insulation frame; 32. Heat exchange fins; 33. Air inlet; 34. Air outlet; 35. Pipeline; 36. Through-hole; 37. Winding channel; 38. Heat exchange channel;

[0039] 121, shaft wall; 122, return air channel; 123, connection port; 124, flange; 125, assembly frame; 126, convex strip; 127, card slot;

[0040] 131. Channel body; 132. Ventilation hole; 133. Loading frame; 134. Spacer bar; 135. Limiting slide groove; 136. Heat exchange chamber. DETAILED DESCRIPTION

[0041] The following will disclose multiple embodiments of the utility model with diagrams. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the utility model. In other words, in some embodiments of the utility model, these physical details are not necessary. In addition, for the purpose of simplifying the diagram, some conventional structures and components will be depicted in a simple schematic manner in the diagram.

[0042] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0043] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6 According to national standards, the temperature of fresh air sent into a mine shall not be lower than 2°C. Therefore, during the air supply process, once it is in a high-altitude cold zone, a special heating component will be used to heat the fresh air sent in. These heating components are generally electrically heated, which not only increases energy consumption, but also may result in uneven heating. Based on this, the present application provides a mine waste heat recycling device, including a mining area 1 for jade mining, the mining area 1 includes an underground 11, a return air shaft 12 and a lifting passage 13 are arranged at the underground 11, and a mine tunnel 14 is arranged at the bottom of the underground 11 for jade mining;

[0044] A suction assembly 2 is provided at the top of the mining area 1. The suction assembly 2 includes a fan 21. One end of the fan 21 is connected to an air outlet pipe 23. The air outlet pipe 23 is connected to the return air shaft 12.

[0045] The other end of the fan 21 is provided with a connector 22 for connecting to a ventilation pipe;

[0046] A heat exchange component 3 is provided at the top of the mining area 1 on one side of the suction component 2 for heat exchange;

[0047] The heat exchange assembly 3 includes a heat preservation frame 31 , and one or more heat exchange fins 32 are arranged inside the heat preservation frame 31 for exchanging heat.

[0048] When the waste heat generated during the jade mining process is released into the mining area 1, the fan 21 of the suction assembly 2 starts to operate, extracting the waste heat from the mining area 1 and discharging it into the underground external air through the outlet pipe 23 and the return air shaft 12.

[0049] At the same time, the extracted waste heat is directed to the heat exchange component through the connector 22. In the heat exchange component, the heat insulation frame 31 protects the heat exchange fins 32 and other media (such as air or water) can be selected according to the environment. In cold places, oil can be selected as the heat transfer medium for heat exchange. The design of the heat exchange fins 32 allows heat to be effectively transferred and converts waste heat into usable energy, such as by heating fresh air or supplying other heat energy needs.

[0050] The benefit of this device is that it can maximize the use of waste heat energy generated during jade mining and convert it into usable energy, thereby improving energy utilization efficiency and reducing waste heat emissions in the environment.

[0051] See also Figure 3 , Figure 4 , Figure 5 , Figure 6 The inner side of the heat preservation frame 31 is hollow, and a winding channel 37 is provided in the hollow area. A pipe 35 is embedded in the inner side of the winding channel 37, and the inner side of the pipe 35 is filled with a heat conducting medium.

[0052] Air inlets 33 and through ports 36 are respectively provided on both sides of the outer wall of the heat preservation frame 31 , and the through ports 36 are used for connecting the pipeline 35 .

[0053] In the heat exchange component of the mine waste heat recycling device, the inner side of the heat preservation frame 31 is hollow, and a winding channel 37 is provided in the hollow area. A pipe 35 is embedded in the inner side of the winding channel 37, and the inner side of the pipe 35 is filled with a heat conducting medium.

[0054] Such a design helps to improve the efficiency of heat transfer. When waste heat enters the hollow area of ​​the insulation frame 31, the heat transfer medium in the filled state in the pipe 35 will help transfer the waste heat to the surrounding medium. The heat transfer medium should have good thermal conductivity to ensure that the heat can be transferred quickly and effectively.

[0055] Air inlets 33 and ports 36 are provided on both sides of the outer wall of the heat preservation frame 31. The air inlet 33 is used to introduce fresh air from the outside to supply the medium required for the heat exchange process, such as air. The ports 36 are used to connect the pipeline 35 so as to introduce waste heat from other equipment or systems into the heat exchange components of the mine waste heat recycling device for heat energy conversion and utilization.

[0056] Such a design allows the device to be flexibly configured according to actual needs. The position and number of the air inlet 33 and the through-hole 36 can be adjusted according to specific circumstances to meet different requirements for heat input and output. In this way, the device can maximize the use of waste heat energy, improve energy efficiency, and provide the required heat energy for other processes and equipment.

[0057] See also Figure 3 , Figure 5 as well as Figure 6 An air outlet 34 is provided between every two heat exchange fins 32 , and the air outlet 34 is provided for one-way ventilation. A heat exchange channel 38 is provided between the heat exchange fins 32 for exchanging heat.

[0058] In the heat exchange component of the mine waste heat recycling device, an air outlet 34 is provided between every two heat exchange fins 32. These air outlets 34 are designed as a one-way ventilation setting to ensure that heat can flow correctly during the heat exchange process and prevent heat from flowing back or reflux.

[0059] In order to achieve heat exchange, heat exchange channels 38 are provided between the heat exchange fins 32. The function of these heat exchange channels 38 is to provide a path so that heat can flow naturally between every two heat exchange fins 32 and achieve heat energy exchange. In this way, waste heat energy can be effectively transferred to other media, such as air or water, for further utilization.

[0060] Such a design enables the heat exchange component to achieve efficient heat exchange. After the waste heat enters the heat exchange component under the guidance of the suction assembly 2 and the heat-conducting medium, the heat will flow to the heat exchange channel 38 between the heat exchange fins 32 through the air outlet 34, and exchange heat with other media in the process. Through the one-way ventilation setting and the design of the heat exchange channel 38, it can ensure that the heat flows between the heat exchange fins 32 in an orderly manner, thereby improving the heat transfer efficiency.

[0061] See also Figure 1 , Figure 2 , Fig.10 , Fig.11 , Fig.12 as well as Fig.13The return air shaft 12 includes a shaft wall 121 , a return air channel 122 is arranged in the shaft wall 121 , a flange 124 is arranged near the bottom of the return air channel 122 , and a combination frame 125 is installed on the top of the flange 124 .

[0062] The return air channel 122 allows waste heat to be drawn from the mining area 1 through the shaft wall 121 and discharged into the underground external air. The function of the assembly frame 125 is to provide a connection point, making the bottom assembly and connection of the shaft wall 121 more convenient and stable.

[0063] A connection port 123 is formed on one side of the well wall 121 . The connection port 123 is located above the assembly frame 125 . The connection port 123 is matched with the air outlet pipe 23 .

[0064] The connection port 123 is designed to match the air outlet pipe 23 to ensure that the waste heat can smoothly enter the air outlet pipe 23 from the return air shaft 12. This design allows the fan 21 in the suction assembly 2 to guide the waste heat to the heat exchange components and other energy utilization systems through the air outlet pipe 23. The purpose of this structural design is to optimize the extraction and discharge process of waste heat. Through the return air channel 122 in the shaft wall 121, the waste heat can be effectively extracted from the mining area 1, and connected to the air outlet pipe 23 through the connection port 123, and then guided to other components and systems for further waste heat reuse. The installation of the combination frame 125 provides a stable connection point, making the connection between the shaft wall 121 and the air outlet pipe 23 more firm and reliable.

[0065] See also Figure 1 , Figure 2 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 as well as Fig.12 A plurality of convex strips 126 are arranged in a circular shape on the inner side of the combination frame 125 , and a slot 127 is provided between every two convex strips 126 , and a filter component is installed in the slot 127 .

[0066] The lifting channel 13 includes a channel body 131 . A heat exchange cavity 136 is defined in the channel body 131 . One end of the heat exchange cavity 136 is connected to one end of the pipeline 35 .

[0067] The inner side of the heat exchange chamber 136 is provided with one or more groups of spacer bars 134 in a circular array, and a limiting slide groove 135 is provided between every two groups of spacer bars 134. The limiting slide groove 135 is slidably connected to a supporting frame 133, and one or more ventilation holes 132 are provided at the bottom of the supporting frame 133 for air circulation.

[0068] The combination of the convex strip 126 and the slot 127 provides fixation and support for the filter component, thereby ensuring that particles and pollutants in the waste heat can be effectively filtered and removed.

[0069] The device also includes a lifting channel 13, which is composed of a channel body 131. The channel body 131 is provided with a heat exchange cavity 136, one end of which is connected to one end of the pipe 35. One or more groups of spacer bars 134 are arranged in a circular array inside the heat exchange cavity 136. A limited position slide groove 135 is arranged between every two groups of spacer bars 134, and these slide grooves are used to support and position the bearing frame 133. One or more ventilation holes 132 are arranged at the bottom of the bearing frame 133 to ensure air circulation.

[0070] This design enables the lifting channel 13 to achieve connection and disconnection between the heat exchange chamber 136 and the pipeline 35 and adjust the height of the heat exchange chamber 136 by adjusting the position of the bearing frame 133. The configuration of the spacer bar 134 and the limiting slide groove 135 ensures that the bearing frame 133 slides stably at the corresponding position to meet the connection requirements between the heat exchange chamber 136 and the pipeline 35. The setting of the ventilation hole 132 ensures the air circulation in the heat exchange chamber 136 to maintain the heat exchange efficiency and the normal operation of the equipment.

[0071] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A mine waste heat recycling device, comprising a mining area (1) for jade mining, wherein the mining area (1) comprises an underground (11), wherein a return air shaft (12) and an elevator passage (13) are arranged at the underground (11), and a mine tunnel (14) is arranged at the bottom of the underground (11) for jade mining; Features : A suction assembly (2) is provided at the top of the mining area (1), the suction assembly (2) comprising a fan (21), one end of the fan (21) is connected to an air outlet pipe (23), and the air outlet pipe (23) is connected to a return air shaft (12); The other end of the fan (21) is provided with a connector (22) for connecting to a ventilation pipe; A heat exchange component (3) is provided at the top of the mining area (1) on one side of the suction component (2) for heat exchange; The heat exchange component (3) comprises a heat insulation frame (31), and one or more heat exchange fins (32) are arranged on the inner side of the heat insulation frame (31) for exchanging heat.

2. The mine waste heat recycling device according to claim 1, characterized in that: The inner side of the heat-insulating frame (31) is hollow, and a winding channel (37) is provided in the hollow area. A pipe (35) is embedded in the inner side of the winding channel (37), and the inner side of the pipe (35) is filled with a heat-conducting medium.

3. The mine waste heat recycling device according to claim 1, characterized in that: Air inlets (33) and through ports (36) are respectively arranged on both sides of the outer wall of the heat preservation frame (31), and the through ports (36) are used for connecting the pipeline (35).

4. The mine waste heat recycling device according to claim 1, characterized in that: An air outlet (34) is provided between every two of the heat exchange fins (32), and the air outlet (34) is provided for one-way ventilation. A heat exchange channel (38) is provided between the heat exchange fins (32) for exchanging heat.

5. The mine waste heat recycling device according to claim 1, characterized in that: The return air shaft (12) comprises a shaft wall (121), a return air channel (122) is arranged in the shaft wall (121), a flange (124) is arranged near the bottom of the return air channel (122), and a combination frame (125) is installed on the top of the flange (124).

6. The mine waste heat recycling device according to claim 5, characterized in that: A connection port (123) is provided on one side of the well wall (121); the connection port (123) is located above the assembly frame (125); and the connection port (123) is compatible with the air outlet pipe (23).

7. The mine waste heat recycling device according to claim 5, characterized in that: The inner side of the combination frame (125) is provided with a plurality of convex strips (126) arranged in a circular shape, a clamping groove (127) is provided between every two convex strips (126), and a filter component is installed at the clamping groove (127).

8. The mine waste heat recycling device according to claim 1, characterized in that: The lifting channel (13) comprises a channel body (131), and a heat exchange cavity (136) is provided in the channel body (131), and one end of the heat exchange cavity (136) is connected to one end of the pipeline (35).

9. The mine waste heat recycling device according to claim 8, characterized in that: The inner side of the heat exchange cavity (136) is provided with one or more groups of spacer bars (134) in a circular array, and a limiting slide groove (135) is provided between every two groups of the spacer bars (134). A supporting frame (133) is slidably connected to the limiting slide groove (135), and one or more ventilation holes (132) are provided at the bottom of the supporting frame (133) for air circulation.