Flow stabilizing barrel with adjustable flocculation state and thickener

Abstract

The utility model provides a flow stabilizing barrel with an adjustable flocculation state and a thickener, the flow stabilizing barrel comprises an inner barrel, the top end and the bottom end of the inner barrel are both of an opening structure, and a through first channel is formed in the inner barrel; the outer cylinder surrounds the outer portion of the inner cylinder, the bottom end of the outer cylinder is connected with the bottom end of the inner cylinder in a watertight mode, the top end of the outer cylinder is higher than the top end of the inner cylinder, a second channel is formed in an annular area between the inner cylinder and the outer cylinder, and the top end of the second channel is communicated with the top end of the first channel; the feeding pipe is positioned at the lower part of the outer cylinder and penetrates through the outer cylinder; the first filling pipe penetrates through the feeding pipe from the outer side; and the second filling pipe is arranged at the lower part of the outer cylinder and penetrates through the outer cylinder from the outer side. The flow stabilizing barrel can adjust the flocculation state of ore pulp according to the flowing process of the ore pulp, full flocculation of the ore pulp is achieved, and the concentration effect is remarkably improved.

Description

Technical Field

[0001] The present application belongs to the technical field of concentrators, and provides a stabilizing flow barrel with adjustable flocculation state and a concentrator including the stabilizing flow barrel. Background Art

[0002] The concentrator is a solid-liquid separation equipment that can work continuously. It is mainly used for the clarification of slurry in the field of wet mineral processing. When the concentrator is working, the slurry passes through the stabilization barrel for stabilization and flocculation. The slurry that reaches the flocculation state settles to the bottom of the concentrator and is further concentrated and recovered. The water in the slurry is filtered and discharged as overflow.

[0003] During the feeding, steady flow and sedimentation process, the flow rate and flow state of the slurry are in a dynamic change process. At the same time, with the addition of flocculants, the size and density of the flocs in the slurry are constantly changing. In order to achieve a higher concentration efficiency, the ideal flocculation process should be carried out gradually along with the flow rate and flow state of the slurry. The slurry should begin to flocculate as soon as possible during the feeding stage. When the slurry enters the steady flow state, it should ensure sufficient flocculation while avoiding the situation where some flocs are too large, resulting in too fast sedimentation rate and secondary breakup. Finally, the slurry in a completely flocculated state should be allowed to settle stably and evenly as much as possible.

[0004] However, most of the existing flow stabilization barrels change the flow direction of the slurry by adjusting the structure. For example, Chinese patent CN103301659A provides a concentrator stabilizing device, which drives the slurry to rise by a spiral blade arranged in the middle cylinder, and collides with the rising slurry by falling during the rising process to achieve mineralization, thereby enhancing the flocculation effect. However, the above structure not only causes mutual interference between the rising and descending fluids in the same space, but also generates strong shear force and turbulence in the process of converting solid particles in the slurry into flocs, which easily breaks up the flocculated particles for a second time and reduces the flocculation effect; at the same time, since the flocculation process is not accurately controlled according to the changes in the slurry state, the flocs cannot enter the sedimentation layer evenly and fully, thereby affecting the concentration effect. Utility Model Content

[0005] The purpose of the present application is to solve the problems existing in the above-mentioned prior art and to provide a stabilizing barrel with adjustable flocculation state and a concentrator including the stabilizing barrel.

[0006] The first aspect of the present application provides a stabilizing barrel with adjustable flocculation state, comprising:

[0007] An inner cylinder, wherein the top and bottom ends of the inner cylinder are both open structures, and a first through passage is formed inside;

[0008] An outer cylinder, the outer cylinder surrounds the outer cylinder, the bottom end of the outer cylinder is watertightly connected to the bottom end of the inner cylinder, the top end of the outer cylinder is higher than the top end of the inner cylinder, the annular area between the inner cylinder and the outer cylinder forms a second channel, the top end of the second channel is connected to the top end of the first channel;

[0009] A feed pipe, located at the lower part of the outer cylinder and passing through the outer cylinder;

[0010] A first filling pipe, penetrating the feed pipe from the outside;

[0011] The second filling pipe is arranged at the lower part of the outer tube and penetrates the outer tube from the outside.

[0012] Preferably, the feed pipe passes through the outer cylinder along the tangent direction of the outer cylinder.

[0013] Preferably, the ratio of the inner diameter of the inner cylinder to the radial width of the second channel is 4:1 to 8:1.

[0014] Preferably, the flocculation state adjustable flow barrel further comprises: a third filling pipe, which penetrates the outer cylinder from the outside, and the penetration position is higher than the top of the inner cylinder.

[0015] Preferably, the portion of the second channel below the connection between the feed pipe and the outer cylinder is an annular channel; the portion of the second channel above the connection between the feed pipe and the outer cylinder is a spiral groove channel.

[0016] Preferably, the connection point between the second filling pipe and the outer cylinder is located above the starting point of the spiral groove-shaped channel, and the connection point between the third filling pipe and the outer cylinder is located above the ending point of the spiral groove-shaped channel.

[0017] Preferably, the flocculation state-adjustable stabilizing barrel further comprises a dispersion and material guiding device disposed at the lower part of the inner barrel.

[0018] A second aspect of the present application provides a concentrator, comprising:

[0019] A concentration tank, wherein the top of the concentration tank is an open structure, the bottom of the concentration tank has a conical sedimentation layer area and a through recovery port;

[0020] The above-mentioned stabilizing barrel with adjustable flocculation state has the bottom end of the inner barrel of the stabilizing barrel located inside the concentration tank, and the top end of the stabilizing barrel is higher than the top end of the concentration tank.

[0021] The flocculation state-adjustable flow stabilizing barrel provided in the present application can add flocculants according to the flow rate, flow direction and flow state of the slurry at different stages of the concentration process, so that the movement state of the slurry matches its flocculation state, while not reducing the treatment efficiency, ensuring that the slurry can achieve complete flocculation when entering the sedimentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of a stabilizing barrel with adjustable flocculation state provided in Example 1 of the present application;

[0023] Figure 2 A side view of a stabilizing barrel with adjustable flocculation state provided in Example 1 of the present application;

[0024] Figure 3 A top view of a stabilizing barrel with adjustable flocculation state provided in Example 1 of the present application;

[0025] Figure 4 A schematic half-section diagram of a stabilizing barrel with adjustable flocculation state provided in Example 1 of the present application;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of a stabilizing barrel with adjustable flocculation state provided in Example 2 of the present application;

[0027] Figure 6 A side view of a concentrator provided according to Example 3 of the present application;

[0028] Figure 7 A flowchart of a working method of a concentrator provided according to Example 3 of the present application;

[0029] Figure 8 A side view of a stabilizing barrel with adjustable flocculation state provided according to Example 4 of the present application;

[0030] Fig. 9 A schematic half-section diagram of a stabilizing barrel with adjustable flocculation state provided in Example 4 of the present application;

[0031] Fig.10 It is a schematic structural diagram of the dispersion and material guiding device in Example 4 of the present application.

[0032] Numbers in the figure

[0033] Feed pipe 1, curved pipe 11, inner tube 2, outer tube 3, outer tube wall 31, outer tube bottom 32, outer tube cover 33, first channel 41, second channel 42, annular channel 421, spiral groove channel 422, first filling pipe 51, second filling pipe 52, third filling pipe 53, spiral guide plate 6, dispersion and guide device 7, blades 71, connecting shaft 72, guide cone 73, supporting structure 74, concentrator 800, steady flow barrel 81, concentration tank 82, recovery port 83. DETAILED DESCRIPTION

[0034] Hereinafter, the present application will be further described based on preferred embodiments with reference to the accompanying drawings.

[0035] In addition, various components in the drawings are enlarged or reduced in size for ease of understanding, but this practice is not intended to limit the scope of protection of the present application.

[0036] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the products of the embodiments of the present application are usually placed when in use, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, in order to distinguish different units, the words first, second, etc. are used in this specification, but these are not limited by the order of manufacture, nor can they be understood as indicating or implying relative importance, and their names may be different in the detailed description and claims of the present application.

[0037] The vocabulary in this specification is used to illustrate the embodiments of the present application, but is not intended to limit the present application. It should also be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in this application can be specifically understood.

[0038] [Example 1]

[0039] Embodiment 1 of the present application provides a stabilizing barrel with adjustable flocculation state, which can be used as a slurry stabilizing mechanism of a concentrator to enable the pumped slurry to settle stably.

[0040] Figure 1 The three-dimensional structure schematic diagram of the flocculation state adjustable flow stabilizing barrel provided in Example 1 is shown. Figure 2 , Figure 3 The side view and top view of the stabilizing bucket are shown respectively. Figure 4 The flow stabilizing barrel is shown in half section, with the section line being Figure 3 The CC line in the diagram.

[0041] To achieve the above objectives, the present application provides a flow stabilization barrel with adjustable flocculation state. Figure 1 A schematic diagram of the three-dimensional structure of the stabilizing barrel with adjustable flocculation state in some embodiments is shown. Figure 2 The schematic diagram of the principle of using the flocculation state adjustable steady flow barrel in a thickener and other thickening systems to achieve the thickening of the slurry is shown in FIG. Figure 3, 4 Further shown are a side view (the internal structure of which is indicated by dotted lines) and a top view of the stabilizing barrel with adjustable flocculation state.

[0042] like Figures 1 to 4 As shown, the flocculation state adjustable flow barrel includes a feed pipe 1, an inner tube 2 and an outer tube 3, a first filling pipe 51 and a second filling pipe 52, which are made of waterproof and wear-resistant materials.

[0043] The inner tube 2 is a vertically arranged cylindrical structure with both the top and bottom opened, and a first channel 41 is formed inside the inner tube; the outer tube wall 31 of the outer tube 3 is arranged on the outside of the inner tube 2, and the lower end of the outer tube wall 31 is watertightly connected to the bottom end of the inner tube 2 through the outer tube bottom 32, and the top of the outer tube wall 31 is higher than the top of the inner tube 2. The inner tube 2, the outer tube wall 31 and the outer tube bottom 32 form a second channel 42 in an annular area. Obviously, as Figure 2 , Figure 4 As shown, the top of the second channel 42 is connected to the top of the first channel 41. Figure 2 and Figure 3 As shown, the inner diameter of the outer cylinder 3 is D1, and the inner diameter of the inner cylinder 2 is D2 (generally, the wall thickness of the outer cylinder 3 and the inner cylinder 2 is much smaller than their diameters or tube diameters, so it can be considered that their respective inner diameters and outer diameters are basically the same), then the radial distance between the outer cylinder 3 and the inner cylinder 2, that is, the radial width of the second channel 42 is L1=(D2-D1) / 2.

[0044] Generally, an outer cylinder cover 33 is provided at the top of the outer cylinder 3, and an opening for balancing the internal and external pressures and observing the state of the slurry may be opened on the outer cylinder cover 33.

[0045] The feed pipe 1 is used to feed the slurry into the second channel 42. Figures 1 to 4 As shown, the feed pipe 1 is horizontally arranged at the lower part of the outer cylinder 3 and passes through the outer cylinder 3. Generally, the feed pipe 1 is connected to the slurry injection pipeline through a flange, etc. After the slurry is pumped into the outer cylinder 3 from the feed pipe 1, it flows spirally along the second channel 42 under the action of the pumping pressure and gradually rises to the top of the inner cylinder 2. During the rising process, the kinetic energy of the slurry is continuously weakened under the action of its own gravity and the water flow resistance below the liquid surface, and the flow state gradually changes from irregular turbulence to smooth flow, and finally flows into the first channel 41 in a rotational manner at the top of the inner cylinder 2 and settles under the action of gravity.

[0046] In the process of horizontal pouring, rotational ascent and vertical sedimentation of the slurry, the flow rate, flow direction and flow state of the slurry are all different. Therefore, the addition of flocculants should make the movement state of the slurry match the flocculation state of the particles. Otherwise, the slurry may not fully react with the added flocculants, or the flocculation reaction may occur prematurely, resulting in the premature appearance of large flocs and premature sedimentation, which may cause the flocs to be broken up for a second time or collide with other particles to produce turbulence.

[0047] For this reason, in Example 1, Figures 1 to 4 As shown, the flow stabilizing barrel includes at least two filling pipes for filling flocculants, wherein the first filling pipe 51 is arranged at the feed pipe position and penetrates the feed pipe 1 from the outside, and the second filling pipe 52 is arranged at the lower part of the outer tube 3 and penetrates the outer tube 3 from the outside. Generally, a one-way valve or a similar mechanism is arranged in the filling pipe to ensure that the flocculant can be pumped in unidirectionally and combined with the slurry.

[0048] The first filling pipe 51 is located at the feed pipe 1. Since it is closest to the slurry pump, the flow speed of the slurry here is the fastest and the flow state is the most unstable. Adding flocculant here can make the flocculant fully and evenly mixed with the slurry and make the particles in the slurry begin to flocculate; the second filling pipe 52 is located at the lower part of the outer cylinder. After the slurry enters the outer cylinder 3, it first rotates in the lower part of the annular second channel 42, and at the same time, it is spirally lifted under the pressure of the slurry pump. By adding flocculant in the lower part of the second channel 42, as the speed of the added slurry gradually slows down during the rotation and lifting process, the turbulence phenomenon gradually weakens, the flocculation effect gradually strengthens, and the flocs can be increased more evenly.

[0049] The feeding direction of the feed pipe 1 and the structures of the inner tube 2 and the outer tube 3 can be optimized to ensure further matching of the slurry flow state and the flocculation state. For example, the feed pipe 1 preferably passes through the feed pipe along the tangent direction of the outer tube 3; for another example, the preferred range of the ratio of the inner diameter D2 of the inner tube 2 to the radial width L1 of the second channel 42 is 4:1 to 8:1.

[0050] [Example 2]

[0051] Figure 5 The schematic diagram of the structure of the stabilizing tank with adjustable flocculation state provided in Example 2 of the present application is shown in FIG. 1 . The difference between this embodiment and Example 1 is that a third filling pipe 53 is added. Figure 5 As shown, the third filling pipe 53 is disposed at the upper portion of the outer tube 3 , and penetrates the outer tube 3 from the outside. Preferably, the penetration position is higher than the top end of the inner tube 2 .

[0052] As mentioned above, the top of the second channel 42 is connected to the top of the first channel 41. After the slurry rotates from bottom to top to the top of the second channel 42, it flows circumferentially into the first channel 41 and enters the sedimentation process. Ideally, the slurry should flow smoothly and slowly in the horizontal direction here, and the particles contained therein are fully flocculated, and the floc size distribution is relatively uniform, so that the regularity and consistency of sedimentation can be achieved under the action of gravity. By setting the third filling pipe 53 at a position higher than the top of the inner tube 2, the filling amount of the flocculant can be adjusted according to the flow state of the slurry and the size and distribution of the flocs during the process of the slurry entering the first channel 41 from the second channel 42, so that the slurry can reach an ideal flocculation state.

[0053] [Example 3]

[0054] Figure 6 A side view of a concentrator 800 provided in Example 3 of the present application, the concentrator 800 is used to concentrate the slurry, such as Figure 6 As shown, it includes the aforementioned stabilizing barrel 81 with adjustable flocculation state and a concentration tank 82. Specifically, the top of the concentration tank 82 is an open structure, the bottom has a conical sedimentation layer area and a through recovery port 83 to collect the concentrated material.

[0055] The lower end of the inner cylinder of the stabilizing barrel 81 is located inside the concentration tank 82 (when in use, the liquid level in the concentration tank 82 is higher than the lower end of the inner cylinder), and the elbow 11 is used to connect the feed pipe and the slurry pump.

[0056] Furthermore, the top of the inner cylinder is higher than the top of the concentration tank 82, wherein preferably, the height difference between the top of the inner cylinder and the top of the concentration tank 82 is greater than or equal to 20 cm, and the ratio of the diameter of the concentration tank 82 to the diameter of the inner cylinder is 6:1 to 8:1.

[0057] Figure 7 The working method of the concentrator 800 is shown, as shown in FIG. Figure 7 As shown, its working method includes the following steps:

[0058] S1: Pumping the slurry from the feed pipe into the outer cylinder, and adding flocculant to the slurry in the feed pipe so that the sludge particles contained therein begin to combine to form flocs;

[0059] S2, adjusting the slurry pumping pressure so that the slurry in the second channel changes from horizontal turbulent flow to spiral flow from bottom to top with the flow speed gradually decreasing, and adding flocculant to the slurry in the second channel to further flocculate it;

[0060] S3, adding flocculant to the slurry according to the state of the slurry when it reaches the top of the second channel, so that the slurry entering the first channel reaches a complete flocculation state;

[0061] S4, the slurry in a completely flocculated state enters the first channel along the circumferential direction, wherein the flocs contained therein settle to the sedimentation layer area of ​​the concentration tank through the bottom end of the first channel under the action of gravity and are recovered through the recovery port.

[0062] [Example 4]

[0063] In order to make the slurry rotate and rise in the second channel 42 in the reverse direction, it is generally necessary to ensure the pressure of the slurry when it enters the feed port 53. However, increasing the pressure there will increase the flow rate of the slurry in the lower part of the second channel 42. Although a certain agitation of the slurry here can promote the full dispersion of the flocculant, the increased turbulence may destroy the stable and continuous flocculation of the slurry during the rising process. Although the turbulence phenomenon can be alleviated by reducing the pressure of the slurry pumped into the slurry, this method not only reduces the amount of slurry processed per unit time, but also causes the condensed larger flocs to fall vertically when the slurry rises to the upper part of the second channel 42, thereby causing turbulence in the upper part of the second channel 42. The above-mentioned turbulence occurring in the lower and upper parts of the second channel has different causes. Obviously, it is difficult to solve the above problems at the same time by only adjusting the pressure of the slurry pumped into the steady flow barrel.

[0064] To this end, Example 4 further optimizes the flocculation state adjustable stabilizing barrel. Figure 8 and Fig. 9 The side view and the half-section view are shown respectively. Figure 8 and Fig. 9 As shown, in Embodiment 4, the second channel 42 is further divided into an annular channel 421 and a spiral groove channel 422 from bottom to top.

[0065] The annular channel 421 is surrounded by the inner tube 2 and the outer tube 3, and its shape is similar to the second channel 42 in Example 1, and its height is lower than the connection between the feed pipe 1 and the outer tube 3; the spiral groove channel 422 is located above the annular channel and communicates with the annular channel 421. Preferably, it is surrounded by the inner tube 2, the outer tube 3 and the spiral guide plate 6. The spiral guide plate 6 can be made of wear-resistant metal or other materials, and its two sides are respectively and continuously fixedly connected to the inner tube 2 and the outer tube 3 by welding, riveting, etc. Figure 8 and Fig. 9 As shown, the starting point of the spiral groove channel 422 is connected to the annular channel 421 (preferably, the starting point is higher than the connection between the feed pipe 1 and the outer cylinder 3 ), and the end point is connected to the first channel 41 .

[0066] Further preferably, the connection between the second filling pipe 52 and the outer cylinder 3 is located above the starting point of the spiral groove channel 422 , and the connection between the third filling pipe 53 and the outer cylinder 3 is located above the end point of the spiral groove channel 422 .

[0067] By dividing the second channel into a lower annular channel 421 and an upper spiral groove channel 422, after entering the outer cylinder 3, the slurry can first be slowly rotated and rectified in the larger bottom annular space and fully mixed with the flocculant added through the first filling pipe 51, and then enter the spiral groove channel 422 to rise in the reverse direction under the push of the internal slurry pressure and the guidance of the spiral guide plate 6 (the flocculant is added again through the second filling pipe 52 at the starting point of the spiral groove channel). The spiral groove channel 422 can not only effectively rectify the flow direction of the slurry, thereby reducing the turbulence caused by the excessive flow velocity in the lower part of the outer cylinder 3, but also because the upper and lower layers of the channel are isolated from each other by the spiral guide plate 6, the slurry and the flocs generated by the flocculation of the slurry can only rise in the reverse direction under the push of the slurry pump, thereby effectively avoiding the turbulence caused by the direct fall of large-volume flocs on the upper part of the outer cylinder 3, and avoiding the occurrence of secondary dispersion of the flocs due to falling during the reverse ascent.

[0068] Preferably, the ratio of the diameter of the inner tube 2 to the pitch L2 of the spiral groove channel 422 is 4:1 to 8:1; the ratio of the diameter of the feed pipe 1 to the pitch of the spiral groove channel 422 is 3:1 to 6:1. Through the above arrangement, the slurry can be smoothly reversely flowed while ensuring the slurry flow rate per unit time, taking into account the slurry processing speed and effect.

[0069] After the slurry rises along the second channel 42 and enters the first channel 41, it will settle under the action of its own weight. At this time, the flocculated flocs in the slurry are of different sizes. Some flocs with too large a volume fall significantly faster than other flocs with smaller volumes. If they are not treated, they may impact the sedimentation layer below the inner cylinder 2 and affect the stable sedimentation effect. Therefore, it is necessary to try to ensure that the volume, weight and falling speed of the slurry flocs are consistent when they settle from the lower end of the inner cylinder 2 to the sedimentation area of ​​the concentration tank. For this reason, in Example 4, Figure 8 and Fig. 9 As shown, the flocculation state adjustable stabilizing barrel further includes a dispersion and guiding device 7.

[0070] Fig.10 The three-dimensional structure of the dispersing and guiding device 7 is shown. Figures 8 to 10 As shown, the dispersing and guiding device includes a plurality of blades 71 located at the lower part of the inner cylinder 2 and arranged at intervals around the central axis of the inner cylinder 2. Each blade 71 can be fixedly connected by a connecting shaft 72 that is coaxial with the central axis of the inner cylinder 2 and extends radially toward the tube wall of the inner cylinder 2. Preferably, the outer side of the blade 71 is fixedly connected to the tube wall of the inner cylinder 2.

[0071] Each blade 71 is inclined relative to the horizontal direction, and the angle of attack of the blade 71 is preferably 25° to 35°, and the ratio of the angle between two opposite blade edges of adjacent blades to the angle between adjacent blades is preferably 1 / 3 to 1 / 2. The plurality of blades 71 arranged obliquely and having gaps above allow the pulp containing flocs to fall downward in a fan-shaped and diffuse manner from each gap, and the oversized flocs are dispersed through the gaps, further ensuring the uniformity and consistency of the sedimentation components.

[0072] Furthermore, the dispersed material guide device also includes a material guide cone 73 disposed below the blade 71, and the material guide cone 73 is also coaxial with the inner tube 2. The material guide cone 73 can be used to further disperse the slurry settled at the outlet of the inner tube 2 to prevent the vertical fluid from directly impacting the sedimentation layer at the bottom of the concentration tank. Preferably, the bottom surface of the material guide cone 73 is lower than the bottom end of the inner tube 2, and the distance between the two is greater than or equal to 15 cm and less than or equal to 20 cm; the bottom surface diameter of the material guide cone 73 is greater than or equal to the inner diameter of the tube wall of the inner tube 2, and the cone angle φ thereof is in the range of 120° to 150°.

[0073] The upper end of the guide cone 73 can be fixed to the connecting shaft 72. In addition, in order to enhance the firmness of the connection, it can also be Figure 8 , Fig. 9 As shown, a supporting structure 74 for supporting the material guiding cone 73 is provided below the bottom surface of the material guiding cone 73. The supporting structure 74 is reliably connected to the bottom end of the inner cylinder 2 through a plurality of circumferentially distributed vertical plates and a horizontal circular plate thereunder.

[0074] The above is a detailed introduction to the specific implementation methods of the present application. For those skilled in the art, several improvements and modifications may be made to the present application without departing from the principles of the present application. These improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A stabilizing tank with adjustable flocculation state, characterized in that: include: An inner cylinder, wherein the top and bottom ends of the inner cylinder are both open structures, and a first through passage is formed inside; An outer cylinder, the outer cylinder surrounds the outer cylinder, the bottom end of the outer cylinder is watertightly connected to the bottom end of the inner cylinder, the top end of the outer cylinder is higher than the top end of the inner cylinder, the annular area between the inner cylinder and the outer cylinder forms a second channel, the top end of the second channel is connected to the top end of the first channel; A feed pipe, located at the lower part of the outer cylinder and passing through the outer cylinder; A first filling pipe, penetrating the feed pipe from the outside; The second filling pipe is arranged at the lower part of the outer tube and penetrates the outer tube from the outside.

2. The stabilizing barrel with adjustable flocculation state according to claim 1, characterized in that: The feed pipe passes through the outer cylinder along the tangent direction of the outer cylinder.

3. The stabilizing barrel with adjustable flocculation state according to claim 1, characterized in that: The ratio of the inner diameter of the inner cylinder to the radial width of the second channel is 4:1 to 8:

1.

4. The stabilizing barrel with adjustable flocculation state according to claim 1, characterized in that: Also includes: The third filling pipe penetrates the outer tube from the outside, and the penetration position is higher than the top end of the inner tube.

5. The stabilizing barrel with adjustable flocculation state according to claim 4, characterized in that: The portion of the second channel below the connection between the feed pipe and the outer cylinder is an annular channel; The portion of the second channel that is higher than the connection between the feed pipe and the outer cylinder is a spiral groove channel.

6. The stabilizing barrel with adjustable flocculation state according to claim 5, characterized in that: The connection between the second filling pipe and the outer cylinder is located above the starting point of the spiral groove channel; The connection point between the third filling pipe and the outer cylinder is located above the end point of the spiral groove channel.

7. The stabilizing barrel with adjustable flocculation state according to claim 1, characterized in that: It also includes a dispersing and guiding device arranged at the lower part of the inner cylinder.

8. A concentrator, characterized in that: include: A concentration tank, wherein the top of the concentration tank is an open structure, the bottom of the concentration tank has a conical sedimentation layer area and a through recovery port; According to the stabilizing barrel with adjustable flocculation state as claimed in claim 1, the bottom end of the inner barrel of the stabilizing barrel is located inside the concentrating tank, and the top end of the stabilizing barrel is higher than the top end of the concentrating tank.

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