On-dam pressure-stabilizing ore drawing device for damming

Abstract

The utility model discloses an on-dam pressure stabilizing ore drawing device for damming. The device comprises a pressure stabilizing device (1) arranged on a tailing dam body, the pressure stabilizing device (1) is of a multi-section structure; wherein the section number of the pressure stabilizing device (1) is matched with the real-time height of a dam body; each section of the pressure stabilizing device (1) is a standard section (2); the standard section (2) comprises a main shaft (3), an ore pulp overflow pipe (4) and an overflow short pipe (5); the main shaft (3) is communicated with the ore pulp overflow pipe (4) through an overflow short pipe (5); an ore pulp inlet (301) and an ore pulp outlet (302) are formed in the main shaft (3); and an overflow outlet (401) is formed in the ore pulp overflow pipe (4). By the adoption of the scheme, it can be guaranteed that the tailing conveying pressure and the pressure needed by the hydrocyclone set are kept in dynamic balance all the time, that is, stable operation can be conducted all the time under the condition of no redundant pressure, and therefore the problem of tailing conveying energy consumption waste caused by redundant pressure in a traditional ore drawing mode is solved.

Description

Technical Field

[0001] The utility model relates to a voltage stabilizing device for dam construction, in particular to a voltage stabilizing ore-discharging device on a dam for dam construction, and belongs to the field of machinery. Background Art

[0002] At present, the use of the centerline damming method in domestic mine tailings storage and treatment projects is increasing. The main feature of this damming method is that a cyclone is required to classify the tailings. At the same time, in order to achieve the best classification effect, the cyclone has put forward higher requirements for the stability of the tailings slurry feeding pressure. The traditional method of setting up a high-level slurry pool on the hillside on one side of the tailings dam body can play a good effect on the stable pressure supply of ore. However, in order to avoid the increase in management and engineering construction investment caused by the frequent movement of the slurry pool, the high-level slurry box is generally placed at a higher elevation to reduce the number of movements. The pressure of tailings transportation depends on the height of the high-level slurry pool. The height difference from the slurry pool to the dam surface at the initial stage of operation is much greater than the working pressure required by the cyclone group. As the dam surface rises, the height difference from the slurry pool to the dam surface just meets the working pressure of the cyclone group. The slurry pool needs to be further raised. Therefore, most of the time during the tailings discharge process, there is a waste of tailings lifting energy caused by the surplus installation height.

[0003] In the prior art, a tailings conveying pressure stabilizing system for supplying cyclones to graded damming is adopted in the center-line damming method of Ekou Iron Mine. Although it solves the requirement of relatively stable feeding pressure of the cyclone group, its main body is set on the hillside outside the dam, and there is the same problem of excessive energy consumption in tailings conveying caused by redundant pressure as the high-level slurry pool discharge scheme. Utility Model Content

[0004] In view of the deficiencies existing in the above-mentioned prior art, the utility model proposes a dam-mounted pressure-stabilizing ore-discharging device for dam construction. In the utility model, the pressure-stabilizing device is arranged on the tailings dam body, and the pressure-stabilizing device is a multi-section structure including a plurality of standard sections. The number of sections of the pressure-stabilizing device is also adapted to the real-time height of the dam body during the dam construction process, that is, the pressure-stabilizing device is gradually raised in sections as the dam body increases, and the lower part of the pressure-stabilizing device is buried under the dam body as a part of the dam body structure. Such an arrangement avoids the redundant pressure caused by the change in the height difference between the high-level slurry pool and the real-time dam surface in the traditional ore-discharging method. Therefore, the use of the utility model solution can ensure that the tailings conveying pressure and the pressure required by the cyclone group are always kept in dynamic balance, that is, it can always operate stably under the condition of no redundant pressure, thereby eliminating the problem of waste of tailings conveying energy caused by redundant pressure in the traditional ore-discharging method.

[0005] In the utility model, each standard section of the pressure stabilizing device includes a main shaft, a slurry overflow pipe, and an overflow short pipe. The main shaft is connected to the slurry overflow pipe through the overflow short pipe, so that the slurry is connected to the atmosphere in the main shaft and can form a dynamic free liquid surface. The static pressure generated by the free liquid surface in the main shaft is transmitted to the tailings conveying pipeline. The regulating effect of the pressure stabilizing device makes the tailings conveying pressure consistent with the pressure required by the cyclone group, avoiding the energy waste caused by redundant pressure in the traditional mining method, and the energy saving effect is significant.

[0006] According to the implementation scheme of the utility model, a dam-mounted pressure-stabilizing ore-discharging device for dam construction is provided.

[0007] A dam-mounted pressure-stabilizing ore-discharging device for dam construction includes a pressure-stabilizing device arranged on a tailings dam body. The pressure-stabilizing device is a multi-section structure. The number of sections of the pressure-stabilizing device is adapted to the real-time height of the dam body. Each section of the pressure-stabilizing device is a standard section. The standard section includes a main shaft, a slurry overflow pipe, and an overflow short pipe. The main shaft is connected to the slurry overflow pipe through the overflow short pipe. A slurry inlet and a slurry outlet are provided on the main shaft. An overflow outlet is provided on the slurry overflow pipe.

[0008] Preferably, in each standard section, an overflow control valve is also provided on the overflow short pipe.

[0009] In the utility model, the pressure stabilizing device is arranged at a suitable position along the center line of the tailings pond dam surface.

[0010] In the utility model, the voltage stabilizing device is vertically arranged at an appropriate position along the center line of the tailings pond dam surface.

[0011] In the utility model, the main shaft and the slurry overflow pipe are both arranged vertically, and the overflow short pipe is vertically arranged between the main shaft and the slurry overflow pipe.

[0012] In the utility model, on the main shaft, the slurry inlet is located above the slurry outlet.

[0013] In the utility model, the free liquid surface of the slurry formed in the main shaft is located above the slurry inlet.

[0014] Preferably, in each standard section, an inlet control valve is provided at the slurry inlet.

[0015] Preferably, in each standard section, an outlet control valve is provided at the slurry outlet.

[0016] Preferably, in each standard section, a connecting piece is provided between the main shaft and the slurry overflow pipe, and the connecting piece is located below the overflow short pipe.

[0017] The traditional method of setting a high-position slurry pool on the hillside on one side of the tailings pond dam body can achieve a good effect on stabilizing the pressure of ore supply. Generally, the high-position slurry pool is placed at a higher elevation to reduce the number of moves, and the pressure of tailings delivery depends on the height of the high-position slurry pool. The height difference from the slurry pool to the dam surface at the initial stage of operation is much greater than the working pressure required by the cyclone group. As the dam surface rises, the slurry pool needs to be further raised when the height difference from the slurry pool to the dam surface just meets the working pressure of the cyclone group. Therefore, most of the time during the tailings discharge process, there is a waste of tailings lifting energy consumption caused by the surplus installation height. Based on this, the utility model proposes a dam-mounted dam-mounted pressure-stabilizing ore discharge device for dam construction. In the scheme of the present utility model, the pressure stabilizing device is arranged on the tailings dam body (preferably arranged along the center line of the tailings pond dam surface), and the pressure stabilizing device is a multi-section structure including multiple standard sections. The number of sections of the pressure stabilizing device is also adapted to the cyclone feeding pressure and the real-time height of the dam body during the dam construction process, that is, the pressure stabilizing device is gradually raised in sections as the dam body increases, and the lower part of the pressure stabilizing device is buried under the dam body as a part of the dam body structure. Such an arrangement avoids the redundant pressure caused by the change in the height difference between the high-level slurry pool and the real-time dam surface in the traditional ore discharge method. Therefore, the use of the utility model scheme can ensure that the tailings conveying pressure and the pressure required by the cyclone group always maintain a dynamic balance, that is, it can always operate stably under the condition of no redundant pressure, thereby eliminating the problem of waste of tailings transportation energy caused by redundant pressure in the traditional ore discharge method.

[0018] In the utility model, each standard section of the pressure stabilizing device includes a main shaft, a slurry overflow pipe, and an overflow short pipe. The main shaft is connected to the slurry overflow pipe through the overflow short pipe, so that the slurry is connected to the atmosphere in the main shaft and can form a dynamic free liquid surface. The static pressure generated by the free liquid surface in the main shaft is transmitted to the tailings conveying pipeline. The regulating effect of the pressure stabilizing device makes the tailings conveying pressure consistent with the pressure required by the cyclone group, avoiding the problem of excessive energy consumption in tailings conveying caused by redundant pressure in traditional mining methods.

[0019] The utility model transmits the back pressure push effect of the slurry on the slurry through the cyclone group along the ore supply pipeline to the pressure stabilizing device. The slurry is connected to the atmosphere in the main shaft of the pressure stabilizing device and forms a dynamic free liquid surface. The static pressure generated by the free liquid surface of the slurry in the main shaft further transmits the pressure to the tailings delivery pump through the shaft and the ore supply pipeline. The pressure of the tailings delivery pump is completely consistent with the pressure required by the cyclone group through the regulating effect of the pressure stabilizing device, eliminating the energy waste caused by redundant pressure. The utility model controls the free liquid surface of the slurry to be kept in the main shaft all the time, and should be above the ore supply slurry inlet, so that the slurry pressure can be directly transmitted to the tailings delivery pipeline through the main shaft. To meet this control point, the pressure stabilizing device needs to be set on the tailings dam surface, preferably near the center line of the dam surface. The installation position of the pressure stabilizing device can be determined according to the actual situation of the initial dam and slurry direction of the project. The permanent installation position can be determined once, and the installation position of the device can be adjusted in real time according to the dam construction situation, the device operation status, etc.

[0020] The main feature of the high-position slurry pool scheme and the pressure-stabilizing well scheme in the prior art is that the ore discharge pressure-stabilizing facility is set outside the tailings pond dam, and the setting position of the ore discharge pressure-stabilizing facility needs to be moved according to different dam heights. In the initial stage, the pressure-stabilizing and energy-saving effects are not obvious due to the height limit of the installation position, and there will still be a relatively large redundant pressure. The redundant pressure gradually decreases as the height of the dam body and the cyclone increases. When the redundant pressure is zero, it is necessary to re-move and increase the position of the pressure-stabilizing well, and the energy consumption waste caused by the redundant pressure cannot be avoided. The utility model places the pressure-stabilizing device on the dam, and the pressure-stabilizing device is gradually raised in sections as the dam body increases. After the raising, the lower part of the pressure-stabilizing device is gradually buried in the dam body as the dam body increases. The free liquid surface of the slurry in the pressure-stabilizing device can be dynamically adjusted and kept stable according to the height change of the cyclone group arrangement, which can be stably operated under the condition of no redundant pressure, and the energy-saving effect is significant. The pressure-stabilizing device of this application can realize the dynamic pressure-stabilizing supply of tailings slurry without redundant pressure, which can save about 0.05kW / h of electricity per ton of slurry compared with the conventional ore discharge method (calculated based on the average redundant pressure of 15m).

[0021] The utility model not only satisfies the stable feeding pressure of the cyclone group, but also sets the pressure stabilizing device near the center line of the dam on the tailings dam body. After one positioning, the device does not need to be moved a second time. As the dam body increases, the main body of the pressure stabilizing device is raised, and the lower part of the pressure stabilizing device is directly buried under the dam body as a part of the structure. The use of the utility model can ensure that the tailings conveying pressure and the pressure required by the cyclone group are always kept in dynamic balance, and the static pressure of the free liquid surface is transmitted to the tailings conveying pipeline through the pressure stabilizing device, which can completely eliminate the problem of waste of tailings conveying energy caused by redundant pressure in the traditional ore discharge method.

[0022] In the utility model, the dimensions of the slurry inlet, slurry outlet, main shaft, slurry overflow pipe, overflow short pipe, etc. of the pressure stabilizing device can be adjusted according to the tailings conveying volume, and the height of the device can be dynamically adjusted according to the feed pressure requirements of the cyclone group. In addition, the relative dimensions and installation angles between the slurry inlet, slurry outlet, slurry overflow pipe, and main shaft can be adjusted according to the actual application situation, and auxiliary pillars can be set on the pressure stabilizing device. The number of auxiliary pillars can be increased or decreased as appropriate according to the structural stability of the device, and the length of the standard section can also be adjusted according to the actual application scenario.

[0023] The voltage stabilizer adopts modular design, which is easy to install, manage and maintain. The standard section can be prefabricated in the factory and hoisted by the crane on site, and only needs to be bolted. In addition, standard sections of various specifications can be made for connection according to the actual application scenarios. When the slurry inlet and outlet of the standard section are not equipped with inlet and outlet control valves, the voltage stabilizer needs to be shut down and the interface replaced. When the standard section is equipped with inlet and outlet control valves, the interface of the ore supply and discharge pipeline can be adjusted online.

[0024] In the utility model, the main shaft can be made of round steel pipe, and other shapes and other materials can also achieve the function of the device. The standard sections and valves in the utility model adopt flange connection, and other connection methods such as on-site welding and clamp connection can also be adopted. The valves in the utility model can adopt various forms of valves such as butterfly valves, knife gate valves, ball valves, gate valves, etc., and the wear resistance can be selected in different levels according to the characteristics of the slurry.

[0025] Compared with the prior art, the utility model has the following beneficial technical effects:

[0026] 1. In the utility model, the pressure stabilizing device is arranged on the tailings dam surface, and the pressure stabilizing device is a multi-section structure including a plurality of standard sections. The number of sections of the pressure stabilizing device is also adapted to the real-time height of the dam body during the dam construction process, that is, the pressure stabilizing device is gradually raised in sections as the dam body increases, and the lower part of the pressure stabilizing device is buried under the dam body as a part of the dam body structure. Such an arrangement avoids the redundant pressure caused by the change in the height difference between the high-position slurry pool and the real-time dam surface in the traditional ore discharge method. Therefore, the adoption of the utility model scheme can ensure that the tailings conveying pressure and the pressure required by the cyclone group always maintain a dynamic balance, that is, it can always operate stably under the condition of no redundant pressure, thereby eliminating the problem of waste of tailings conveying energy caused by redundant pressure in the traditional ore discharge method.

[0027] 2. In the utility model, each standard section of the pressure stabilizing device includes a main shaft, a slurry overflow pipe, and an overflow short pipe. The main shaft is connected to the slurry overflow pipe through the overflow short pipe, so that the slurry is connected to the atmosphere in the main shaft and can form a dynamic free liquid surface. The static pressure generated by the free liquid surface in the main shaft is transmitted to the tailings conveying pipeline. The regulating effect of the pressure stabilizing device makes the tailings conveying pressure consistent with the pressure required by the cyclone group, avoiding the energy waste caused by the redundant pressure in the traditional ore discharge method, and the energy saving effect is significant.

[0028] 3. The utility model sets the pressure stabilizing device near the center line of the tailings dam body while satisfying the stable feeding pressure of the cyclone group. After one positioning, there is no need to move the device a second time, thus avoiding the increase of management and engineering construction investment caused by frequent movement.

[0029] 4. The voltage stabilizing device of the utility model adopts a modular design. The standard section can be prefabricated in the factory and hoisted by a crane on site, which is simple to install, manage and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of a dam-mounted pressure-stabilizing ore-discharging device for dam construction according to the utility model;

[0031] Figure 2 It is a top view of the voltage stabilizing device in the utility model.

[0032] Reference numerals:

[0033] 1: pressure stabilizing device; 2: standard section; 3: main shaft; 301: slurry inlet; 302: slurry outlet; 4: slurry overflow pipe; 401: overflow outlet; 5: overflow short pipe; 6: overflow control valve; 7: inlet control valve; 8: outlet control valve; 9: connector. DETAILED DESCRIPTION

[0034] The technical solution of the utility model is illustrated below, and the scope of protection requested for the utility model includes but is not limited to the following embodiments.

[0035] According to the implementation scheme of the utility model, a dam-mounted pressure-stabilizing ore-discharging device for dam construction is provided.

[0036] A dam-mounted pressure-stabilizing and ore-discharging device for dam construction, the device comprising a pressure-stabilizing device 1 arranged on a tailings dam body. The pressure-stabilizing device 1 is a multi-section structure. The number of sections of the pressure-stabilizing device 1 is adapted to the real-time height of the dam body. Each section of the pressure-stabilizing device 1 is a standard section 2. The standard section 2 comprises a main shaft 3, a slurry overflow pipe 4, and an overflow short pipe 5. The main shaft 3 is connected to the slurry overflow pipe 4 through the overflow short pipe 5. A slurry inlet 301 and a slurry outlet 302 are provided on the main shaft 3. An overflow outlet 401 is provided on the slurry overflow pipe 4.

[0037] Preferably, in each standard section 2 , an overflow control valve 6 is also provided on the overflow short pipe 5 .

[0038] In the utility model, the voltage stabilizing device 1 is arranged along the center line of the tailings pond dam surface.

[0039] In the utility model, the voltage stabilizing device 1 is vertically arranged along the center line of the tailings pond dam surface.

[0040] In the utility model, the main shaft 3 and the slurry overflow pipe 4 are both vertically arranged, and the overflow short pipe 5 is vertically arranged between the main shaft 3 and the slurry overflow pipe 4 .

[0041] In the present invention, on the main shaft 3 , the slurry inlet 301 is located above the slurry outlet 302 .

[0042] In the utility model, the free liquid surface of the slurry formed in the main shaft 3 is located above the slurry inlet 301 .

[0043] Preferably, in each standard section 2 , an inlet control valve 7 is provided at the slurry inlet 301 .

[0044] Preferably, in each standard section 2 , an outlet control valve 8 is provided at the slurry outlet 302 .

[0045] Preferably, in each standard section 2, a connecting piece 9 is further provided between the main shaft 3 and the slurry overflow pipe 4. The connecting piece 9 is located below the overflow short pipe 5.

[0046] Example 1

[0047] like Figure 1-2 As shown, a dam-mounted pressure-stabilizing and ore-discharging device for dam construction includes a pressure-stabilizing device 1 arranged on the tailings dam body. The pressure-stabilizing device 1 is a multi-section structure. The number of sections of the pressure-stabilizing device 1 is adapted to the real-time height of the dam body. Each section of the pressure-stabilizing device 1 is a standard section 2. The standard section 2 includes a main shaft 3, a slurry overflow pipe 4, and an overflow short pipe 5. The main shaft 3 is connected to the slurry overflow pipe 4 through the overflow short pipe 5. A slurry inlet 301 and a slurry outlet 302 are provided on the main shaft 3. An overflow outlet 401 is provided on the slurry overflow pipe 4.

[0048] In this embodiment, the voltage stabilizing device includes 5 standard sections. Each standard section is prefabricated in the factory and hoisted by a crane on site. Adjacent standard sections are connected by flanges. In this embodiment, the first standard section of the voltage stabilizing device is first placed on the dam. During the dam construction process, the voltage stabilizing device is gradually raised in sections as the dam body is raised. After the voltage stabilizing device is raised, the standard sections at the bottom of the voltage stabilizing device are gradually buried in the dam body as the dam body is raised, and cement is poured and fixed at a certain height.

[0049] Example 2

[0050] Example 1 is repeated, except that an overflow control valve 6 is further provided on the overflow short pipe 5 in each standard section 2 .

[0051] Example 3

[0052] Example 2 is repeated, except that the pressure stabilizing device 1 is arranged along the center line of the tailings pond dam surface.

[0053] Example 4

[0054] Example 3 is repeated, except that the voltage stabilizing device 1 is vertically arranged along the center line of the tailings pond dam surface.

[0055] Example 5

[0056] Example 4 is repeated, except that the main shaft 3 and the slurry overflow pipe 4 are both vertically arranged, and the overflow short pipe 5 is vertically arranged between the main shaft 3 and the slurry overflow pipe 4.

[0057] Example 6

[0058] Example 5 is repeated, except that on the main shaft 3 , the slurry inlet 301 is located above the slurry outlet 302 .

[0059] Example 7

[0060] Example 6 is repeated, except that the free liquid surface of the slurry formed in the main shaft 3 is located above the slurry inlet 301.

[0061] Example 8

[0062] Example 7 is repeated, except that in each standard section 2, an inlet control valve 7 is provided at the slurry inlet 301 .

[0063] Example 9

[0064] Example 8 is repeated, except that in each standard section 2, an outlet control valve 8 is provided at the slurry outlet 302.

[0065] Example 10

[0066] Example 9 is repeated, except that in each standard section 2, a connecting piece 9 is further provided between the main shaft 3 and the slurry overflow pipe 4. The connecting piece 9 is located below the overflow short pipe 5.

[0067] The utility model not only satisfies the stable feeding pressure of the cyclone group, but also sets the pressure stabilizing device near the center line of the dam on the tailings dam body. After one positioning, the device does not need to be moved a second time. As the dam body increases, the main body of the pressure stabilizing device is raised, and the lower part of the pressure stabilizing device is directly buried under the dam body as a part of the structure. The use of the utility model can ensure that the tailings conveying pressure and the pressure required by the cyclone group are always kept in dynamic balance, and the static pressure of the free liquid surface is transmitted to the tailings conveying pipeline through the pressure stabilizing device, which can completely eliminate the problem of waste of tailings conveying energy caused by redundant pressure in the traditional ore discharge method.

Claims

1. A dam-mounted pressure-stabilizing ore-discharging device for dam construction, characterized in that: The device comprises a pressure stabilizing device (1) arranged on a tailings dam body; the pressure stabilizing device (1) is a multi-section structure; wherein the number of sections of the pressure stabilizing device (1) is adapted to the real-time height of the dam body; each section of the pressure stabilizing device (1) is a standard section (2); the standard section (2) comprises a main shaft (3), a slurry overflow pipe (4), and an overflow short pipe (5); the main shaft (3) is connected to the slurry overflow pipe (4) through the overflow short pipe (5); a slurry inlet (301) and a slurry outlet (302) are provided on the main shaft (3); and an overflow outlet (401) is provided on the slurry overflow pipe (4).

2. The dam-mounted pressure-stabilizing ore-discharging device for dam construction according to claim 1, characterized in that: In each standard section (2), an overflow control valve (6) is also provided on the overflow short pipe (5).

3. The dam-mounted pressure-stabilizing ore-discharging device for dam construction according to claim 1, characterized in that: The pressure stabilizing device (1) is arranged along the center line of the tailings pond dam surface.

4. The device for stabilizing pressure and ore discharge on a dam for dam construction according to claim 3 is characterized in that: The pressure stabilizing device (1) is vertically arranged along the center line of the tailings pond dam surface.

5. The device for stabilizing pressure and ore discharge on a dam for dam construction according to claim 4, characterized in that: The main shaft (3) and the slurry overflow pipe (4) are both arranged vertically, and the overflow short pipe (5) is arranged vertically between the main shaft (3) and the slurry overflow pipe (4).

6. The dam-mounted pressure-stabilizing ore-drawing device for dam construction according to any one of claims 1 to 5, characterized in that: On the main shaft (3), the slurry inlet (301) is located above the slurry outlet (302).

7. The device for stabilizing pressure and ore discharge on a dam for dam construction according to claim 6, characterized in that: The free liquid surface of the slurry formed in the main shaft (3) is located above the slurry inlet (301).

8. The dam-building pressure-stabilizing ore-drawing device according to any one of claims 1 to 5 and 7, characterized in that: In each standard section (2), an inlet control valve (7) is provided at the slurry inlet (301).

9. The device for stabilizing pressure and ore discharge on a dam for dam construction according to claim 6, characterized in that: In each standard section (2), an inlet control valve (7) is provided at the slurry inlet (301).

10. The dam-building pressure-stabilizing ore-drawing device according to any one of claims 1 to 5, 7 and 9, characterized in that: In each standard section (2), an outlet control valve (8) is provided at the slurry outlet (302).

11. The device for stabilizing pressure and ore discharge on a dam for dam construction according to claim 6, characterized in that: In each standard section (2), an outlet control valve (8) is provided at the slurry outlet (302).

12. The dam-mounted pressure-stabilizing ore-drawing device for dam construction according to claim 8, characterized in that: In each standard section (2), an outlet control valve (8) is provided at the slurry outlet (302).

13. The dam-building pressure-stabilizing ore-drawing device according to any one of claims 1-5, 7, 9, 11-12, characterized in that: In each standard section (2), a connecting piece (9) is provided between the main shaft (3) and the slurry overflow pipe (4); the connecting piece (9) is located below the overflow short pipe (5).

14. The device for stabilizing pressure and ore discharge on a dam for dam construction according to claim 6, characterized in that: In each standard section (2), a connecting piece (9) is provided between the main shaft (3) and the slurry overflow pipe (4); the connecting piece (9) is located below the overflow short pipe (5).

15. The device for stabilizing pressure and ore discharge on a dam for dam construction according to claim 8, characterized in that: In each standard section (2), a connecting piece (9) is provided between the main shaft (3) and the slurry overflow pipe (4); the connecting piece (9) is located below the overflow short pipe (5).

16. The device for stabilizing pressure and ore discharge on a dam for dam construction according to claim 10, characterized in that: In each standard section (2), a connecting piece (9) is provided between the main shaft (3) and the slurry overflow pipe (4); the connecting piece (9) is located below the overflow short pipe (5).

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