Mine underground pure water tank
By designing a smooth curved box and an overall floating roof structure in a pure water tank under the mine, the air entry problem caused by poor contact between the floating roof and the inner wall is solved, and the quality of the pure water and the applicability of the water tank are improved.
Patent Information
- Application Number
- CN202010165038.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-03-11
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2040-03-11
AI Technical Summary
During the movement of the floating roof up and down of the existing mine underground pure water tank, the contact between the floating roof and the inner wall is poor, which can easily lead to air entering the pure water and reduce the quality of the pure water.
A mining underground pure water tank was designed. The corner of the inner wall of the side wall of the box is a smooth curved surface, and the floating roof is an integral structure, which is non-bonded and spliced. It uses elastic components and mirrored stainless steel or Polishing treatment reduces friction between the floating roof and the cabinet and the possibility of air entering.
By improving the contact effect between the floating roof and the box, the possibility of air entering pure water is reduced, the quality of pure water and the reliability of the use of the water tank are improved, and the installation environment at different angles is adapted.
Smart Images
Figure CN113387067B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of mechanical equipment, and in particular to an underground pure water tank for mining. Background Art
[0002] At present, the pure water medium hydraulic system used in the fully-mechanized coal mining face in the mine is a new technology to replace the traditional fully-mechanized coal mining face emulsion system. In the pure water medium hydraulic system of the entire fully-mechanized coal mining face, the pure water tank of the pure water high-pressure pump station is a key point. The pure water tank is used to load pure water, which means that there are almost no impurities in the water except water molecules. However, during the up and down movement of the floating top of the existing pure water tank, the floating top and the inner wall are not in good contact, which makes it easy for air to enter the pure water and reduce the quality of the pure water. Summary of the invention
[0003] In order to improve at least one of the above-mentioned technical problems, an object of the present invention is to provide an underground pure water tank for mining.
[0004] To achieve the above-mentioned purpose, the technical solution of the present invention provides an underground pure water tank for mining, comprising: a box body, the box body is provided with a top wall, a side panel and a bottom wall, the upper and lower ends of the side panel are respectively connected to the top wall and the bottom wall, and the corners of the inner wall surface of the side panel are smooth curved surfaces; a floating roof, which is arranged in the box body and contacts and cooperates with the inner wall surface to separate the internal space of the box body; wherein the floating roof is suitable for moving in the up and down directions of the box body.
[0005] The underground pure water tank for mining provided by the present solution includes a box body and a floating roof, wherein the box body includes a top wall, a side panel and a bottom wall, wherein the corners of the inner wall surface of the side panel are rounded curved surfaces. By setting the corners of the inner wall surface of the side panel as rounded curved surfaces, right-angle contact can be eliminated, and the contact effect between the corners of the box body and the edge of the floating roof can be improved, so that when the pure water level in the box body rises and falls, the movement of the floating roof is smoother, and the possibility of interference between the inner wall surface of the side panel and the floating roof is reduced, and the possibility of deformation or misalignment of the floating roof, which causes air to enter the pure water and reduces the quality of the pure water, is reduced.
[0006] In addition, the floating roof provided by this solution is an integral structure, not bonded or spliced. For the floating roof structure bonded or spliced, by reducing the friction between the edge of the floating roof and the box wall, the possibility of gaps when the floating roof floats up and down and cracks after long-term use can be reduced.
[0007] It can be understood that a smooth curved surface refers to a smooth curved surface, that is, the curved surface has a tangent plane at each point, and the direction of the tangent plane changes continuously with the continuous change of the points on the curved surface, so that the inner wall surface of the side panel has no acute angles, right angles or other included angles, so that the edge of the floating roof is in smooth contact with the inner wall surface of the side panel at all places, and right-angle contact is eliminated, so as to effectively reduce the friction between the edge of the floating roof and the inner wall surface when the floating roof is raised and lowered, reduce the possibility of air entering the pure water and reducing the quality of the pure water, and improve the reliability of the underground pure water tank for mining provided by this solution.
[0008] In addition, the underground pure water tank for mining in the above technical solution provided by the present invention may also have the following additional technical features:
[0009] In the above technical solution, the floating roof includes: a first floating roof, which is constructed as a structure adapted to the inner wall surface and contacts and cooperates with the inner wall surface; a second floating roof, which is arranged above or below the first floating roof and contacts and cooperates with the inner wall surface; wherein the second floating roof is inclined relative to the first floating roof, and its projection on the first floating roof coincides with that of the first floating roof.
[0010] In the above technical solution, the first floating roof and / or the second floating roof is an elastic member; and / or the specific gravity of the elastic member is smaller than the specific gravity of water.
[0011] In the above technical solution, the elastic component includes a foamed plastic component or a rubber component.
[0012] In any of the above technical solutions, a manhole is provided on the side panel of the box body, and a cover is provided on the manhole; the end surface of the cover body facing the inside of the box body is flush with the inner wall surface.
[0013] In any of the above technical solutions, the inner wall surface is provided with mirror stainless steel or a polishing layer.
[0014] In any of the above technical solutions, the cross-section of the inner wall surface is a long strip-shaped ring structure; the two ends of the long strip-shaped ring structure along its length direction are semicircular arcs.
[0015] In any of the above technical solutions, the inner wall surface is cylindrical; there are multiple boxes, and the side panels are provided with connecting holes, and the multiple boxes are connected through the connecting holes.
[0016] In the above technical solution, the diameter of the communication hole is greater than the thickness of the first floating roof of the floating roof; and / or the diameter of the communication hole is greater than the thickness of the second floating roof of the floating roof.
[0017] In any of the above technical solutions, the box body is columnar, and the inner wall surface is a cylindrical surface with equal diameter in the up and down directions.
[0018] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0020] Figure 1 It is a schematic structural diagram of an underground pure water tank for mining according to an embodiment of the present invention;
[0021] Figure 2 It is a schematic structural diagram of an underground pure water tank for mining according to an embodiment of the present invention;
[0022] Figure 3 is a schematic structural diagram of a tank and a floating roof according to an embodiment of the present invention;
[0023] Figure 4 It is a schematic structural diagram of an underground pure water tank for mining according to an embodiment of the present invention;
[0024] Figure 5 It is a schematic structural diagram of an underground pure water tank for mining according to an embodiment of the present invention.
[0025] in, Figures 1 to 5 The corresponding relationship between the reference numerals and component names in the figure is:
[0026] 100 underground pure water tank for mining; 10 tank body; 11 top wall; 12 side panel; 13 bottom wall; 20 floating roof; 21 first floating roof; 22 second floating roof; 111 manhole B; 120 inner wall surface; 121 manhole A; 122 cover body; 123 connecting hole; 124 water outlet; 125 air vent. DETAILED DESCRIPTION
[0027] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.
[0029] Refer to the following Figures 1 to 5 An underground pure water tank 100 for mining according to some embodiments of the present invention is described.
[0030] The present application provides an underground pure water tank 100 for mining, comprising a tank body 10 and a floating roof 20 .
[0031] Embodiment 1
[0032] like Figure 1 and Figure 2 As shown, the box body 10 is provided with a top wall 11, a side panel 12 and a bottom wall 13. The upper and lower ends of the side panel 12 are respectively connected to the top wall 11 and the bottom wall 13. The corners of the inner wall surface 120 of the side panel 12 are smooth curved surfaces.
[0033] By making the corners of the inner wall surface 120 of the side panel 12 into smooth curved surfaces, the contact effect between the corners of the box body 10 and the edges of the floating roof 20 can be improved, and the possibility of interference between the inner wall surface 120 of the side panel 12 and the floating roof 20 can be reduced, thereby reducing the possibility of deformation or misalignment of the floating roof 20, thereby reducing the possibility of air entering the pure water and reducing the quality of the pure water.
[0034] like Figure 3 As shown, the floating roof 20 is disposed in the box body 10 and contacts and cooperates with the inner wall surface 120 to separate the internal space of the box body 10 ; wherein the floating roof 20 is suitable for moving in the up and down directions of the box body 10 .
[0035] The edges of the floating roof 20 are in smooth contact with the inner wall surface 120 of the side panel 12 at all places, eliminating right-angle contact, so as to effectively reduce the friction between the edges of the floating roof 20 and the inner wall surface 120 when the floating roof 20 is raised or lowered, so that when the pure water level in the box body 10 rises or falls, the floating roof 20 moves up and down as a whole, thereby making the movement of the floating roof 20 smoother, so as to further reduce the deformation or misalignment and tilt of the floating roof 20, thereby causing the possibility of air entering the pure water, and the quality of the pure water in the box body 10 can be guaranteed.
[0036] Furthermore, the floating roof 20 is a structure of a whole floating roof 20 , which can avoid the possibility of cracking of the floating roof 20 after long-term use, compared with the floating roof 20 formed by splicing, so as to effectively improve the reliability of the use of the floating roof 20 .
[0037] In some embodiments, Figure 1 As shown, the cross section of the inner wall surface 120 is a long strip-shaped ring structure; the two ends of the long strip-shaped ring structure along its length direction are semicircular arcs.
[0038] The two ends of the box body 10 provided in this embodiment are semicircular structures, which eliminate right-angle contact compared to the rectangular box body 10 in the related art, and help reduce the friction between the edge of the floating roof 20 and the inner wall surface 120 when the floating roof 20 is raised and lowered. In addition, compared with the rectangular box body 10, the volume of the box body 10 does not change much, which can fully meet the narrow space requirements under the mine and take into account the requirements for the amount of pure water stored in the water tank.
[0039] In addition, for the rectangular box 10, adding arc-shaped side panels at the right angles in the box 10 can improve the contact effect between the inner wall surface 120 and the floating roof 20, forming the structural shape of the body provided in this embodiment, and the modification is simple.
[0040] In some embodiments, Figure 3 As shown, the floating roof 20 includes a first floating roof 21 and a second floating roof 22. The first floating roof 21 is configured to be compatible with the inner wall surface 120 and is in contact with the inner wall surface 120; the second floating roof 22 is arranged above the first floating roof 21 and is in contact with the inner wall surface 120; the second floating roof 22 is inclined relative to the first floating roof 21, and its projection on the first floating roof 21 coincides with the first floating roof 21.
[0041] The underground mine pure water tank 100 provided in the present embodiment is provided with a first floating roof 21 and a second floating roof 22, one of which is placed horizontally and the other is arranged at an angle, so that the underground mine pure water tank 100 can be used not only when placed on flat ground, but also when placed on a slope. This can expand the applicable environmental range of the underground mine pure water tank 100 provided in the present embodiment and make it have a wider range of applicable occasions.
[0042] In some other embodiments, the first floating roof 21 is provided in the box body 10 , but the second floating roof 22 is not provided.
[0043] In some embodiments, the first floating roof 21 and the second floating roof 22 are elastic members.
[0044] The first floating roof 21 and the second floating roof 22 provided in this embodiment are elastic components, so that the first floating roof 21 and the second floating roof 22 have good ductility and resilience, are not easily deformed, and can be maintenance-free. In addition, they can be automatically adjusted according to the specific shape of the inner wall of the side panel 12 to improve the coverage of the liquid surface. There is only a weak flexible friction between the floating roof and the inner wall surface 120, which will not cause damage to the inner wall surface 120.
[0045] In some embodiments, the first floating roof 21 and the second floating roof 22 are flexible floating roofs.
[0046] Further, the specific gravity of the elastic member is smaller than the specific gravity of water.
[0047] By setting the specific gravity of the elastic member to be less than that of water, the floating roof 20 can float up and down with the rise and fall of the liquid level without external force driving, and can be ensured to be located above the liquid level during use, thereby further improving the coverage of the liquid level, reducing the possibility of air entering the pure water, and reducing the possibility of contact between the air above the floating roof 20 and the pure water below the floating roof 20, so as to ensure the quality of the pure water in the box 10 and the resistivity of the pure water. Among them, the liquid level is the liquid level of pure water.
[0048] In some embodiments, the elastic member includes a foamed plastic member or a rubber member.
[0049] The foamed plastic component or rubber component has low density, good ductility and resilience, is not easy to deform, and has the characteristics of corrosion resistance, acid and alkali resistance, and aging resistance. It is very suitable for use in the box body 10 as a floating roof 20. When not in use, it can be rolled up and stored, which is convenient for the inspection and cleaning of the underground pure water tank 100 for mining.
[0050] In some embodiments, Figure 2 and Figure 5 As shown, a manhole A121 is provided on the side panel 12 of the box body 10 , and a cover body 122 is provided on the manhole A121 ; the end surface of the cover body 122 facing the interior of the box body 10 is flush with the inner wall surface 120 .
[0051] By setting the end surface of the cover body 122 facing the inside of the casing 10 flush with the inner wall surface 120, the possibility of the upper and lower sides of the floating roof 20 being connected through the manhole A121 when the floating roof 20 is at the height of the manhole A121 can be reduced, thereby increasing the coverage rate of the liquid surface and reducing the possibility of contact between the air on the upper side of the floating roof 20 and the pure water on the lower side of the floating roof 20.
[0052] In some embodiments, Figures 1 to 3 As shown, the inner wall surface 120 is a cylindrical surface with equal diameters in the up and down directions.
[0053] By setting the inner wall surface 120 as a cylinder with equal diameter in the up and down directions, the floating roof 20 can float up and down with the rise and fall of the liquid level, so that the coverage rate of the floating roof 20 on the liquid surface is relatively stable, and the equal diameter cylinder can make the movement of the floating roof 20 smoother, reduce the possibility of deformation or misalignment and tilt of the floating roof 20, and reduce the possibility of contact between the air on the upper side of the floating roof 20 and the pure water on the lower side of the floating roof 20.
[0054] In some embodiments, the inner wall surface 120 is provided with a mirror stainless steel or a polishing layer.
[0055] The inner wall surface 120 of the box body 10 is made of mirror stainless steel or polished, which can further reduce the friction between the edge of the floating roof 20 and the inner wall surface 120, making the movement of the floating roof 20 smoother. At the same time, by setting the inner wall surface 120 to be smoother, the wear on the floating roof 20 can be reduced and the service life of the floating roof 20 can be increased.
[0056] Embodiment 2
[0057] like Figure 4 and Figure 5As shown, the difference from the first embodiment is that the inner wall surface 120 is cylindrical; there are multiple boxes 10, and a connecting hole 123 is provided on the side panel 12, and the multiple boxes 10 are connected through the connecting hole 123.
[0058] The underground pure water tank 100 for mining provided in this embodiment includes a plurality of boxes 10, and the boxes 10 are cylindrical boxes 10. Compared with boxes 10 of different shapes, boxes 10 of this shape are easier to manufacture, which helps to reduce costs. At the same time, by setting a connecting hole 123 on the box 10, a plurality of boxes 10 are connected in series to increase the volume of storing pure water. For mines with limited space, the number of boxes 10 can be reasonably set to meet different space requirements, so that the underground pure water tank 100 for mining has a wider range of applications.
[0059] In some embodiments, the diameter of the communication hole 123 is greater than the thickness of the first floating roof 21 of the floating roof 20 ; the diameter of the communication hole 123 is greater than the thickness of the second floating roof 22 of the floating roof 20 .
[0060] By setting the diameter of the communication hole 123 to be larger than the thickness of the first floating roof 21 and the thickness of the second floating roof 22, the communication hole 123 between the boxes 10 is made large enough, which can help reduce the occurrence of flow throttling.
[0061] The specific structure of the underground pure water tank 100 for mining provided by the present application is described below with a specific embodiment.
[0062] The pure water medium hydraulic system of the fully mechanized mining face is a new technology that replaces the traditional emulsion system of the fully mechanized mining face. In the pure water medium hydraulic system of the fully mechanized mining face, the pure water tank of the pure water high-pressure pump station is a key point. The water tank used in the current coal mine underground pure water hydraulic system is rectangular, and a layer of flexible floating roof is used inside to isolate the air. This structure has the following disadvantages in actual use: 1. The rectangular water tank has poor contact with the edge of the internal floating roof (such as the flexible floating roof) at the right angle. When the liquid level rises and falls, the right angle of the floating roof often rises, and the air enters, reducing the resistivity of pure water. 2. In the floating area of the floating roof on the inner wall of the water tank, the surface roughness of the inner wall surface 120 of the box body is low, the floating friction of the floating roof is large, and the wear of the floating roof is large due to long-term use. 3. There is a large gap between the side manhole A121 and the box wall. When the floating roof floats in this area, air will enter from the gap, reducing the resistivity of pure water. 4. The flexible floating roof is bonded and spliced, not integral. Cracks will appear at the bonding points of the floating roof after long-term use. After cracking, when the floating roof floats up and down, air enters the area below the floating roof through the cracks, and contacts with water to reduce the resistivity of pure water. 5. Since the installation position of the pure water tank may be on the chute equipment train, the chute equipment train often has an inclination angle of less than 5°. Once an inclination angle occurs, the floating roof will not be able to fully cover the liquid surface, causing air to contact with pure water and reduce the resistivity. In summary, the result will cause the resistivity of the pure water medium to decrease, and in severe cases, it will not be able to meet the use requirements of the pure water medium hydraulic system of the comprehensive mining working face.
[0063] To this end, this specific embodiment provides a mine underground pure water tank 100 structure that can overcome the above-mentioned defects. Figure 1 and Figure 2 As shown, the structure of the underground pure water tank 100 for mining includes a left semicircular box steel plate, an observation manhole (i.e., manhole B111), front and rear steel plates of the box, an upper steel plate of the box, a right semicircular box steel plate, a lower steel plate of the box, a floating roof 20 (such as a double-layer flexible floating roof), front and rear manholes (i.e., manhole A121), and commonly used water inlets 124, air vents 125, etc.
[0064] The water tank body is welded by the side semicircular steel plate, the front and rear steel plates, the upper steel plate (i.e., the top wall 11), the right semicircular steel plate, and the lower steel plate (i.e., the bottom wall 13). The inner wall surface 120 (floating area of the double-layer flexible floating roof) of the tank body is made of mirror stainless steel or polished. The observation manhole is located on the top of the water tank body. The front and rear manholes are located at the front and back of the tank body. The front and rear manholes can be used to clean the inside of the water tank and replace and install the double-layer flexible floating roof. They are specially designed. The surface of the manhole inside the water tank is flush with the tank wall where it is located, and the finish is similar to that of the tank wall. The double-layer flexible floating roof is located inside the tank body and is divided into upper and lower layers. Each floating roof is an integral non-bonded and spliced one. The upper floating roof is large, suitable for working conditions where the left and right inclination angles of the water tank are less than 5°, and the lower floating roof is small, suitable for working conditions when the tank body is horizontal.
[0065] Furthermore, the water tank body as a whole is composed of a left semicircular box steel plate, front and rear box steel plates, an upper box steel plate, a right semicircular box steel plate and a lower box steel plate to form a special-shaped water tank. A double-layer flexible floating roof is used inside the water tank. The floating area of the internal floating roof of the water tank has a high degree of smoothness, and the inner walls of the front and rear manholes are flush with the inner wall of the water tank.
[0066] Such a box has an irregular shape. The left semicircular box steel plate and the right semicircular steel plate of the water tank of this shape are tangent to the front and rear steel plates of the box. In this way, the edge of the double-layer flexible floating roof contacts the box wall to avoid the existence of right angles, thereby enhancing the sealing of the double-layer flexible floating roof.
[0067] Furthermore, the floating area of the double-layer flexible floating roof on the inner wall of the water tank is made of mirror steel or polished without any tensioning bars, which reduces the friction between the double-layer flexible floating roof and the tank wall when floating up and down.
[0068] Furthermore, the inner walls of the front and rear manholes are flush with the inner wall of the box body, and the smoothness is similar to the inner wall of the box body, so that air is prevented from entering through the gap when the floating roof floats in the front and rear manhole areas, thereby reducing the resistivity of pure water.
[0069] Furthermore, a double-layer flexible floating roof is used inside the water tank, and the bottom layer is suitable for the horizontal position of the water tank, and the upper layer is suitable for the situation when the inclination angle is less than 5°. It can be applicable to the placement of various underground pure water tanks for mines 100 to prevent the pure water in the water tank from contacting with the air.
[0070] Furthermore, the double-layer flexible floating roof is divided into two parts, each of which is integral and non-bonded, thus avoiding the possibility of cracking and debonding at the bonding point due to long-term use.
[0071] In some embodiments, the irregular-shaped water tank body can be replaced by two or more (the specific number depends on the water tank volume required by the system) cylindrical water tank bodies connected in series, which can also improve the shortcomings of the existing square pure water tank. When using a cylindrical water tank, the connecting hole 123 between the water tanks is required to be large enough to avoid flow throttling.
[0072] In summary, the structure of the underground pure water tank 100 for mining provided in this specific embodiment has at least the following beneficial effects: it can make the edge of the flexible floating roof contact smoothly with all parts of the water tank wall, eliminating right-angle contact. At the same time, it reduces the friction between the edge of the floating roof and the tank wall when the floating roof is raised and lowered, and eliminates the gap when floating in the manhole area of the side wall. At the same time, the use of the whole floating roof avoids the possibility of cracking of the floating roof after long-term use. The use of a double-layer floating roof allows the pure water tank to adapt to working conditions with an inclination angle of less than 5°.
[0073] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0074] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.
[0075] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0076] The above description is only a preferred 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 protection scope of the present invention.
Claims
1. A pure water tank for underground mining, It is characterized in that include: A box body, wherein the box body is provided with a top wall, a side panel and a bottom wall, the upper and lower ends of the side panel are respectively connected to the top wall and the bottom wall, and the corners of the inner wall surface of the side panel are smooth curved surfaces; A floating roof is disposed in the box body and contacts and cooperates with the inner wall surface to separate the internal space of the box body; Wherein, the floating roof is suitable for moving in the up and down direction of the box body; The floating roof comprises: The first floating roof is configured to be adapted to the inner wall surface and is in contact with the inner wall surface; A second floating roof is arranged above or below the first floating roof and contacts and cooperates with the inner wall surface; Wherein, the second floating roof is arranged obliquely relative to the first floating roof, and its projection on the first floating roof coincides with the first floating roof; The first floating roof and the second floating roof are both integral floating roof structures.
2. The underground pure water tank for mining according to claim 1, It is characterized in that The first floating roof and / or the second floating roof is an elastic member; and / or The elastic member has a specific gravity smaller than that of water.
3. The underground pure water tank for mining according to claim 2, It is characterized in that The elastic member includes a foamed plastic member or a rubber member.
4. The underground pure water tank for mining according to claim 1 or 2, It is characterized in that A manhole is provided on the side panel of the box body, and a cover is provided on the manhole; The end surface of the cover body facing the inside of the box body is flush with the inner wall surface.
5. The underground pure water tank for mining according to claim 1 or 2, It is characterized in that The inner wall surface is provided with mirror stainless steel or a polishing layer.
6. The underground pure water tank for mining according to claim 1 or 2, It is characterized in that The cross section of the inner wall surface is a long strip-shaped annular structure; The two ends of the long strip-shaped annular structure along its length direction are semicircular arc-shaped.
7. The underground pure water tank for mining according to claim 1 or 2, It is characterized in that The inner wall surface is cylindrical; There are multiple boxes, and the side panels are provided with connecting holes, through which the multiple boxes are connected.
8. The underground pure water tank for mining according to claim 7, It is characterized in that The diameter of the communication hole is greater than the thickness of the first floating roof of the floating roof; and / or The diameter of the communication hole is greater than the thickness of the second floating roof of the floating roof.
9. The underground pure water tank for mining according to claim 1 or 2, It is characterized in that The box body is columnar, and the inner wall surface is a cylindrical surface with equal diameters in the up and down directions.