Cooling device for underground driving face
By designing the evaporation components, wire rubs and cloth sink structures in the underground excavation working surface cooling device, the problem of difficulty in cleaning the wet film structure is solved, and the rapid and efficient coal dust cleaning and cooling effect is achieved, which improves the efficiency of excavation work.
Patent Information
- Application Number
- CN202421098101.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2024-12-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When the existing underground excavation surface cooling device uses a wet film structure, the surface is easily covered with coal dust, which leads to difficulty in cleaning and affects work efficiency.
A device including an evaporation assembly, wire rub, water separation tank and cloth sink was designed. The evaporation assembly consists of multiple evaporation plates. The steel wire rubs away coal dust, water flow erosion and cleaning, the cloth sink structure ensures uniform flow of the water film, and the bracket provides stability. support.
It realizes rapid cleaning of evaporation components, improves cooling effect and operating efficiency, and ensures smooth progress of excavation work.
Smart Images
Figure CN222184817U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of underground operation, and in particular relates to a cooling device for an underground excavation working face. Background Art
[0002] Coal mines are areas where humans mine coal resources in coal-rich mining areas. They are generally divided into open-pit coal mines and open-pit coal mines. When the coal seam is far from the surface, people generally choose to dig tunnels underground to mine coal. This is an open-pit coal mine. The excavation face needs to be cooled during work, but the existing cooling devices have poor cooling effects, resulting in the need for the tunnel boring machine to stop working for cooling, resulting in low work efficiency.
[0003] The utility model patent with authorization announcement number CN220059649U discloses a cooling device for an underground excavation working face. By setting up a water storage tank, a water sprinkling tank and a circulating water device, the purpose of recycling cooling water is achieved; by setting up an air outlet pipe and a water-absorbing cotton net, the amount of water vapor input when cooling the working face can be effectively reduced.
[0004] However, the above mechanism has the following problems: although a wet film mechanism, namely a wet curtain and a water-absorbing cotton net, is provided, the evaporation and heat absorption of water are utilized to reduce the outlet air temperature and the temperature of the water body, however, when the wet film structure is used in the environment of an underground excavation face, the surface will be quickly covered with coal dust, requiring frequent cleaning, and the wet curtain and the water-absorbing cotton net in the above structure obviously lack structural features that can be quickly cleaned; therefore, in actual use, operators need to frequently disassemble and clean the wet film structure, which is cumbersome and inefficient, affecting the smooth progress of the excavation work. Utility Model Content
[0005] In view of the above problems, the purpose of the utility model is to provide a cooling device for an underground excavation working face, so as to solve the problem that the wet film of the existing underground excavation working face cooling device is difficult to clean when the wet film structure is used to improve the cooling effect, thereby affecting the smooth progress of the excavation work.
[0006] To achieve the above purpose, the utility model adopts the following technical solution: an underground excavation working face cooling device, comprising a bracket, the top end of the bracket is connected to a main shell, an evaporation component is slidably inserted in the main shell, the evaporation component comprises a plurality of evaporation plates, the bottom end of the evaporation plate is connected to a base plate, the base plate is arranged below the main shell and connected to the main shell by bolts, a wire wiper is arranged on the bottom surface of the main shell, the side surfaces of the wire wiper are tightly attached to the left and right side surfaces of the evaporation plate, a water distribution tank is arranged on the top of the main shell, a water distribution trough connected to the water distribution tank is opened on the top of the main shell, the water distribution trough is arranged vertically above the evaporation plate, a water inlet valve is installed on the water distribution tank, and the rear end of the main shell is connected to a fan via a reducer.
[0007] The beneficial effects of the utility model are as follows: water can flow through the water distribution trough to form a water film on the surface of the evaporation plate, which accelerates evaporation when air flows quickly, thereby reducing the temperature of the air and improving the air cooling effect; the operator can repeatedly pull the evaporation component to make the steel wire scrape off the coal dust on the surface of the evaporation plate, and the coal dust can be quickly removed under the flushing of the water flow, thereby quickly and effectively cleaning the evaporation component.
[0008] In order to effectively scrape off the coal dust covering the surface of the evaporation plate;
[0009] As a further improvement of the above technical solution: the length of the wire wiper is not less than the length of the evaporation plate, and the height of the bracket is not less than the height of the evaporation component.
[0010] The beneficial effect of this improvement is that the operator can repeatedly push and pull the evaporation assembly so that the coal dust on the surface of the evaporation plate is scraped off by the friction of the steel wire and is quickly washed clean by the water flow from above due to gravity.
[0011] To save effort in pushing and pulling the evaporation assembly;
[0012] As a further improvement of the above technical solution: a handle is provided on the bottom surface of the bottom plate.
[0013] The beneficial effect of this improvement is that the operator can hold the handle and repeatedly push and pull the evaporation component as a whole with little effort, thereby performing convenient cleaning work.
[0014] In order to make the water flow in the water distribution tank evenly and effectively form a water film on the surface of the evaporation plate;
[0015] As a further improvement of the above technical solution: the length of the water distribution groove is not less than the length of the evaporation plate, the water distribution groove is a trapezoidal through groove structure that is wide at the top and narrow at the bottom, and the horizontal distance between the bottom end of the water distribution groove and the top surface of the evaporation plate is 1-5 mm.
[0016] The beneficial effect of this improvement is that the water in the water distribution box can flow along the inclined inner wall of the water distribution trough to the surface of the evaporation plate, and then flow along the surface of the evaporation plate to evenly form a water film on the surface of the evaporation plate to ensure the cooling effect on the airflow.
[0017] In order to stably support the entire device;
[0018] As a further improvement of the above technical solution: the bracket includes a vertical plate, supporting legs and a horizontal plate, the top end of the vertical plate is connected to the horizontal plate, the horizontal plate is connected to the bottom end of the main shell, and the supporting legs are arranged on the side of the vertical plate.
[0019] The beneficial effect of this improvement is that the supporting legs can improve the structural stability of the vertical plates, so that the vertical plates and the horizontal plates can provide stable support for the main shell above.
[0020] In order to ensure the stability of the evaporation component installation;
[0021] As a further improvement of the above technical solution: the bottom surface of the transverse plate is parallel to the top surface of the bottom plate, and a plurality of bolt hole structures are provided on the transverse plate and the bottom plate.
[0022] The beneficial effect of this improvement is that, under the tightening of multiple bolts, the bottom plate is pressed tightly against the bottom surface of the horizontal plate, thereby ensuring the stability of the evaporation component during use.
[0023] In order to enable the evaporation component to effectively cool the airflow blown out by the fan;
[0024] As a further improvement of the above technical solution: the reducer is a square-to-circle reducer structure, and a plurality of evaporation plates are arranged on the bottom plate at equal intervals on the left and right.
[0025] The beneficial effect of this improvement is that water can flow to the surface of the evaporation plate under the action of gravity and air flow difference, so that the temperature of the air delivered by the fan entering the main housing through the reducer pipe is quickly reduced.
[0026] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;
[0028] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;
[0029] Figure 3 This is a front cross-sectional view of the utility model;
[0030] Figure 4 It is an enlarged view of A in the utility model;
[0031] Figure 5 It is an enlarged view of B in the utility model;
[0032] In the figure: 1. bracket; 11. vertical plate; 12. supporting leg; 13. horizontal plate; 2. main shell; 21. water distribution trough; 3. evaporation assembly; 31. evaporation plate; 32. bottom plate; 33. handle; 4. wire wiper; 5. fan; 6. water distribution tank; 7. water inlet valve; 8. reducer. DETAILED DESCRIPTION
[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.
[0034] Embodiment 1:
[0035] like Figure 1—5 shows: a cooling device for an underground excavation working face, comprising a bracket 1, the top of the bracket 1 is connected to a main shell 2, an evaporation assembly 3 is slidably inserted in the main shell 2, the evaporation assembly 3 comprises a plurality of evaporation plates 31, the bottom end of the evaporation plate 31 is connected to a bottom plate 32, the bottom plate 32 is arranged below the main shell 2 and connected to the main shell 2 by bolts, a steel wire wiper 4 is arranged on the bottom surface of the main shell 2, the side surfaces of the steel wire wiper 4 are tightly attached to the left and right side surfaces of the evaporation plate 31, a water distribution box 6 is arranged on the top of the main shell 2, a water distribution trough 21 connected to the water distribution box 6 is opened on the top of the main shell 2, the water distribution trough 21 is arranged vertically above the evaporation plate 31, a water inlet valve 7 is installed on the water distribution box 6, and the rear end of the main shell 2 The fan 5 is connected through the reducer 8, and the water can flow through the water distribution trough 21 on the surface of the evaporation plate 31 to form a water film, which accelerates evaporation when the air flows quickly, thereby reducing the temperature of the air and improving the air cooling effect; the operator can repeatedly pull the evaporation component 3 to make the steel wire scraper 4 scrape the coal dust on the surface of the evaporation plate 31, and the coal dust is quickly removed under the flushing of the water flow, so as to quickly and effectively clean the evaporation component 3. The length of the steel wire scraper 4 is not less than the length of the evaporation plate 31, and the height of the bracket 1 is not less than the height of the evaporation component 3. The operator can repeatedly push and pull the evaporation component 3 to make the coal dust on the surface of the evaporation plate 31 be scraped off by the steel wire scraper 4, and be quickly rinsed clean under the flushing of the water flow under the gravity flow above. The bottom surface of the bottom plate 32 is provided with A handle 33 is provided, and the operator can hold the handle 33 to push and pull the evaporation component 3 as a whole with ease, so as to perform convenient cleaning work. The length of the water distribution groove 21 is not less than the length of the evaporation plate 31. The water distribution groove 21 is a trapezoidal through groove structure that is wide at the top and narrow at the bottom. The horizontal distance between the bottom end of the water distribution groove 21 and the top surface of the evaporation plate 31 is 1-5 mm. The water in the water distribution tank 6 can flow along the inclined inner wall of the water distribution groove 21 to the surface of the evaporation plate 31, and then flow along the surface of the evaporation plate 31 to uniformly form a water film on the surface of the evaporation plate 31 to ensure the cooling effect on the airflow. The bracket 1 includes a vertical plate 11, a supporting leg 12 and a horizontal plate 13. The top of the vertical plate 11 is connected to the horizontal plate 13, and the horizontal plate 13 is connected to the bottom of the main shell 2. The support legs 12 are arranged on the side of the vertical plate 11, and the support legs 12 can improve the structural stability of the vertical plate 11, so that the vertical plate 11 and the horizontal plate 13 can provide stable support for the main shell 2 above. The bottom surface of the horizontal plate 13 is parallel to the top surface of the bottom plate 32. A plurality of bolt hole structures are provided on the horizontal plate 13 and the bottom plate 32. Under the fastening of a plurality of bolts, the bottom plate 32 is pressed tightly against the bottom surface of the horizontal plate 13 to ensure the stability of the evaporation component 3 during use. The reducer 8 is a square-to-circle reducer structure, and a plurality of evaporation plates 31 are equidistantly arranged on the bottom plate 32. Water can flow to the surface of the evaporation plate 31 under the action of gravity and airflow difference, so that the temperature of the air delivered by the fan 5 entering the main shell 2 through the reducer 8 is rapidly reduced.
[0036] The working principle of the present technical solution is as follows: connect the water supply hose to one end of the water inlet valve 7, and change the water flow on the evaporation component 3 by controlling the valve path size of the water inlet valve 7; start the fan 5, and the fan 5 conveys air to flow in front of the main shell 2. When the airflow passes through the surface of the evaporation plate 31, the water in the water distribution box 6 flows to the surface of the evaporation plate 31 through the water distribution groove 21 under the action of gravity and the air flow rate difference. The fast-flowing air accelerates the evaporation rate of the water film on the surface of the evaporation plate 31, and the water plays a role of absorbing heat when evaporating, effectively reducing the temperature of the air; when it is necessary to clean the surface of the evaporation plate 31, the operator removes the bolts connecting the cross plate 13 and the bottom plate 32, and then holds the handle 33 and repeatedly pulls the bottom plate 32 up and down, so that the bottom plate 32 drives the evaporation plate 31 to move up and down quickly, so that the steel wire wiper 4 effectively scrapes off the coal dust covered on the surface of the evaporation plate 31, and is washed clean under the drive of the water flow, thereby realizing fast and efficient cleaning work.
[0037] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0038] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.
Claims
1. An underground excavation working face cooling device, characterized in that: The invention comprises a bracket (1), the top end of the bracket (1) is connected to a main shell (2), an evaporation assembly (3) is slidably inserted in the main shell (2), the evaporation assembly (3) comprises a plurality of evaporation plates (31), the bottom end of the evaporation plate (31) is connected to a bottom plate (32), the bottom plate (32) is arranged below the main shell (2) and connected to the main shell (2) by bolts, a steel wire wiper (4) is arranged on the bottom surface of the main shell (2), the side surfaces of the steel wire wiper (4) are closely attached to the left and right side surfaces of the evaporation plate (31), a water distribution box (6) is arranged on the top of the main shell (2), a water distribution trough (21) connected to the water distribution box (6) is provided, the water distribution trough (21) is arranged vertically above the evaporation plate (31), a water inlet valve (7) is installed on the water distribution box (6), and the rear end of the main shell (2) is connected to a fan (5) via a reducer (8).
2. The underground excavation working face cooling device according to claim 1 is characterized in that: The length of the steel wire wiper (4) is not less than the length of the evaporation plate (31), and the height of the bracket (1) is not less than the height of the evaporation component (3).
3. The underground excavation working face cooling device according to claim 1 is characterized in that: A handle (33) is provided on the bottom surface of the bottom plate (32).
4. The underground excavation working face cooling device according to claim 1 is characterized in that: The length of the water distribution groove (21) is not less than the length of the evaporation plate (31), the water distribution groove (21) is a trapezoidal through groove structure that is wide at the top and narrow at the bottom, and the horizontal distance between the bottom end of the water distribution groove (21) and the top surface of the evaporation plate (31) is 1-5 mm.
5. The underground excavation working face cooling device according to claim 1 is characterized in that: The bracket (1) comprises a vertical plate (11), a supporting leg (12) and a horizontal plate (13); the top end of the vertical plate (11) is connected to the horizontal plate (13); the horizontal plate (13) is connected to the bottom end of the main shell (2); and the supporting leg (12) is arranged on the side of the vertical plate (11).
6. The underground excavation working face cooling device according to claim 5 is characterized in that: The bottom surface of the transverse plate (13) is parallel to the top surface of the bottom plate (32), and a plurality of bolt hole structures are provided on the transverse plate (13) and the bottom plate (32).
7. The underground excavation working face cooling device according to claim 1 is characterized in that: The reducer (8) is a square-to-circular reducer structure, and a plurality of evaporation plates (31) are arranged on the bottom plate (32) at equal intervals on the left and right.