Dehydration mechanism and thickener

Abstract

The invention discloses a dewatering mechanism and a thickener, and relates to the technical field of solid-liquid separation, the dewatering mechanism comprises a drainage assembly arranged at the top of a sedimentation tank of the thickener, the drainage assembly comprises a ring part, a blocking part is arranged on the outer side of the ring part, the blocking part and the ring part are matched to form an annular water tank, and a plurality of drainage structures are arranged on the side wall of the ring part. Each drainage structure comprises a plurality of drainage openings which are horizontally formed, the multiple drainage openings are vertically distributed at equal intervals, adjusting cavities are formed in the positions, corresponding to the drainage structures, in the outer side end of the ring part, the adjusting cavities vertically penetrate through the three drainage openings, and arc-shaped adjusting plates are arranged in the adjusting cavities in a sliding mode; and the adjusting plate is adjusted to seal and block different water outlets, so that the positions of the water outlets are flexibly adjusted to adapt to different treatment conditions.

Description

Technical Field

[0001] The invention relates to the technical field of solid-liquid separation, and in particular to a dehydration mechanism and a concentrator. Background Art

[0002] A concentrator, also known as a thickener, is a continuously operating concentrating and clarifying device. Its core function is to effectively separate solid particles and liquid in the slurry by the principle of gravity sedimentation. In the concentration process, the slurry first enters the free sedimentation area of ​​the concentrator. At this time, the particles in the slurry quickly settle under the drive of their own gravity, while the liquid rises to the clarification area and overflows from the top after further clarification.

[0003] However, it is worth noting that the discharge port of clarified liquid in most traditional thickeners is of a single design, and in order to prevent the escape of sediment materials, the discharge port is often placed at a high position. This design is not a problem when the sediment materials are full and sufficient to touch the bottom of the discharge port, but if the sediment materials are scarce and fail to reach the bottom height of the discharge port, the upper clarified liquid cannot be fully discharged, and the remaining clarified liquid has to be discharged from the mud outlet together with the sediment, which greatly reduces the concentration effect and makes it difficult to achieve the ideal solid-liquid separation. Summary of the invention

[0004] The object of the present invention is to provide a dehydration mechanism and a concentrator to solve the problem that the clarified liquid discharge port of the traditional concentrator is single in design, resulting in the upper clarified liquid being unable to be fully discharged.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A dehydration mechanism is used in a concentrator, comprising a drainage assembly arranged on the top of a sedimentation tank of the concentrator, the drainage assembly comprising a ring portion, a blocking portion is arranged on the outer side of the ring portion, the blocking portion and the ring portion cooperate to form an annular water trough, a plurality of drainage structures are arranged on the side wall of the ring portion, each drainage structure comprises a plurality of drainage ports arranged horizontally, the plurality of drainage ports are arranged vertically at equal intervals, an adjustment cavity is arranged inside the outer end of the ring portion corresponding to the position of each drainage structure, the adjustment cavity vertically penetrates the three drainage ports, and an arc-shaped adjustment plate is slidably arranged in the adjustment cavity;

[0007] Adjust the regulating plate to open and close the drain outlets in different positions.

[0008] As a further solution of the present invention: a horizontal overflow surface is arranged on the top surface of the ring portion, and the height of the top surface of the blocking portion is higher than the height of the overflow surface.

[0009] As a further solution of the present invention: a plurality of adjustment plates are cooperatively connected at the bottom with a gear ring, the gear ring is arranged around the axial surface of the sedimentation tank, a mounting side ring is fixedly arranged on the axial surface of the sedimentation tank, and the gear ring is rotatably arranged on the mounting side ring.

[0010] As a further solution of the present invention: an adjusting motor is arranged at the bottom of the blocking portion, an output shaft of the adjusting motor is connected with a transmission gear, and the transmission gear is meshedly connected with the gear ring.

[0011] As a further solution of the present invention: the adjustment plate includes a connecting seat and a sealing adjustment portion, a plurality of communication holes are opened on the sealing adjustment portion, the plurality of communication holes are arranged at equal intervals in the vertical direction, and the distance between two adjacent communication holes is equal to the distance between two adjacent drainage ports, the plurality of communication holes are arranged in sequence in the horizontal direction, the inner arc surface of the sealing adjustment portion is divided into a plurality of sealing surfaces, and the plurality of communication holes are respectively located on the corresponding sealing surfaces;

[0012] The drainage position is adjusted by adjusting the corresponding position of the connecting hole and the drain outlet and adjusting the opening and closing of the drain outlet at the corresponding height.

[0013] As a further solution of the present invention: a concentrator uses the above-mentioned dehydration mechanism, characterized in that it includes a sedimentation tank, a drainage assembly is installed on the sedimentation tank, working bridges are installed at both ends of the top of the drainage assembly, an auxiliary discharging mechanism is arranged in the middle of the working bridge, a feeding pipe is arranged on one side of the working bridge, and a dosing assembly is arranged on the other side, one end of the feeding pipe passes through the working bridge and is fixedly connected to a mixing cylinder, and the dosing assembly is connected to the mixing cylinder through a pipeline.

[0014] As a further solution of the present invention: the auxiliary discharging mechanism includes a reducer, a driving motor is arranged on the reducer, and a driving shaft is connected to the reducer, a rake assembly is arranged at the bottom of the driving shaft, and a dredging assembly is arranged in the rake assembly.

[0015] As a further solution of the present invention: the rake material assembly includes multiple pull rods and rake arms connected to the drive shaft and a rake plate installed at the bottom of the rake arm. An axial hole is opened in the middle of the drive shaft. The dredging assembly includes a fixed rod, which is inserted into the axial hole, and the top of the fixed rod extends out of the drive shaft and is fixedly connected to the reducer housing. A rotating cavity is opened at the bottom end of the axial hole of the drive shaft, and a dredging cone is connected to the rotating cavity. The dredging cone is slidably sleeved on the fixed rod.

[0016] As a further solution of the present invention: the outer axial surface of the dredging cone is provided with an external thread, the bottom section of the inner wall of the rotating chamber is provided with an internal thread, the top section is not provided with a thread and has a diameter larger than the outer diameter of the dredging cone, and the distance of the top section of the rotating chamber is equal to the length of the external thread surface of the dredging cone.

[0017] As a further solution of the present invention: a driving cavity is opened in the rake arm, the rake plate penetrates the rake arm through a rotating shaft and is connected to an adjusting gear in the driving cavity, one side of the multiple adjusting gears is meshed with a rack, one end of the rack penetrates the rake arm and extends into the rotating cavity to cooperate with the dredging cone.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention replaces the annular water collecting structure of the traditional concentrator with a drainage component, adds a structure that can adjust the position of the drain port, adjusts the position of the adjustment plate according to the drainage height requirement, and then adjusts the corresponding position of the connecting hole on the adjustment plate and the drain port, so as to realize drainage work at the drain port of corresponding height and fully discharge the clarified liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the cross-sectional structure of the drainage component of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the adjustment plate of the present invention;

[0023] Figure 3 It is a schematic diagram of the overall structure of the concentrator of the present invention;

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the concentrator of the present invention;

[0025] Figure 5 is a schematic diagram of the cross-sectional structure of a mixing cylinder in a fourth embodiment of the present invention;

[0026] Figure 6 Schematic diagram of the connection structure between the dredging component and the raking component in the third embodiment of the present invention;

[0027] Figure 7 Schematic diagram of the connection structure between the rake plate and the rake arm in the sixth embodiment of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the rake plate in the sixth embodiment of the present invention.

[0029] In the figure: 1. sedimentation tank; 11. sedimentation tank body; 12. support column; 13. conical part; 14. discharge port; 15. backwash port; 2. drainage assembly; 20. ring part; 21. mounting side ring; 22. gear ring; 23. adjustment handle; 24. adjustment motor; 25. adjustment plate; 251. connection seat; 252. sealing adjustment part; 253. connecting hole; 254. first sealing surface; 255. second sealing surface; 256. third sealing surface; 257. fourth sealing surface; 26. drainage port; 27. annular water tank; 28. overflow surface; 29. ​​blocking part; 3. working bridge ;4. Feeding pipe;5. Auxiliary discharging mechanism;51. Reducer;52. Driving motor;53. Driving shaft;531. Rotating chamber;54. Conical seat;55. Rake assembly;551. Pull rod;552. Rake arm;553. Rake plate;554. Driving chamber;555. Adjusting gear;556. Rack;56. Support seat;57. Stirring rod;6. Dosing assembly;61. Medicine storage box;62. Medicine discharging main pipe;63. Medicine discharging branch pipe;7. Mixing cylinder;71. Outer cylinder;72. Inner screen;8. Dredge assembly;81. Fixing rod;82. Raised strip;83. Dredge cone. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the prior art, the clarified liquid discharge port design of most traditional concentrators is simple, and in order to prevent the sediment material from escaping, the discharge port is often placed at a high position. This design is not a problem when the sediment material is full and enough to touch the bottom of the discharge port, but if the sediment material is scarce and fails to reach the bottom height of the discharge port, the upper clarified liquid cannot be fully discharged, and the remaining clarified liquid has to be discharged from the mud outlet together with the sediment, which greatly reduces the concentration effect and makes it difficult to achieve an ideal solid-liquid separation.

[0032] In view of this, the present invention designs a dehydration mechanism to replace the drainage structure of a traditional concentrator and combine it with the concentrator. By adding a structure that can adjust the position of the drain outlet, the position of the drain outlet can be flexibly adjusted to adapt to different processing conditions.

[0033] Embodiment 1

[0034] like Figure 1 and Figure 2As shown, the dehydration mechanism in the present invention includes a drainage assembly 2 arranged on the top of the sedimentation tank 1 of the concentrator. The drainage assembly 2 replaces the annular water collecting structure of the traditional concentrator to achieve flexible adjustment of the drainage port position.

[0035] The above-mentioned drainage component 2 includes a ring portion 20 welded to the top of the sedimentation tank 1, and a blocking portion 29 is arranged on the outer side of the ring portion 20, and the cross-section of the blocking portion 29 is an L-shaped structure. The blocking portion 29 and the ring portion 20 cooperate to form an annular water trough 27, wherein a horizontal overflow surface 28 is arranged on the top surface of the ring portion 20, and the top surface height of the blocking portion 29 is higher than the height of the overflow surface 28, thereby limiting the drainage and preventing the clarified liquid from overflowing onto the outer wall of the device.

[0036] Furthermore, multiple groups of drainage structures are provided on the side wall of the ring portion 20 , and each group of drainage structures includes multiple drainage ports 26 arranged horizontally. In this embodiment, three drainage ports 26 are provided in each group of drainage structures as an example. The three drainage ports 26 are arranged vertically at equal intervals, and the three drainage ports 26 are all connected to the annular water trough 27 , and can discharge the clarified liquid in the inner cavity of the ring portion 20 into the annular water trough 27 .

[0037] Furthermore, an arc-shaped adjustment cavity is opened inside the outer end of the ring portion 20 at the position corresponding to each group of drainage structures. The adjustment cavity vertically penetrates the three drainage ports 26. An arc-shaped adjustment plate 25 is slidably arranged in the adjustment cavity. The adjustment plate 25 can slide in the adjustment cavity and be adapted to the adjustment cavity to achieve sealed blocking of different drainage ports 26. In a normal state, the three drainage ports 26 are all blocked by the adjustment plate 25, and the clarified liquid overflows from the overflow surface 28 on the upper side.

[0038] Furthermore, a plurality of adjustment plates 25 are cooperatively connected to the bottom with a gear ring 22, the gear ring 22 is arranged around the axial surface of the sedimentation tank 1, and a mounting side ring 21 is fixedly arranged on the axial surface of the sedimentation tank 1, the mounting side ring 21 is coaxially arranged with the gear ring 22, the gear ring 22 is rotatably arranged on the mounting side ring 21, and an adjustment handle 23 is installed on the outer axial surface of one side of the gear ring 22. When the drainage position needs to be adjusted, the adjustment handle 23 is pulled manually or mechanically to adjust the position of the above-mentioned drainage outlet 26.

[0039] Further, the above-mentioned adjustment plate 25 is as follows Figure 2As shown, it includes a connecting seat 251 connected to the gear ring 22 and a sealing adjustment portion 252 adapted to the adjustment cavity. The sealing adjustment portion 252 is arc-shaped and adapted to the adjustment cavity, and a plurality of connecting holes 253 are opened on the sealing adjustment portion 252 to adapt to the three drainage ports 26 mentioned above. This embodiment also takes three connecting holes 253 as an example. The three connecting holes 253 are arranged at equal intervals in the vertical direction. The distance between two connecting holes 253 is equal to the distance between the two drainage ports 26, and the three connecting holes 253 are arranged in sequence in the horizontal direction. They are also arranged at equal intervals. The spacing distance determines the arc length of a single adjustment rotation of the gear ring 22, wherein the specific example is as follows Figure 2 As shown in the figure, the inner arc surface of the sealing adjustment portion 252 (the surface facing the ring portion 20) is divided into four parts, namely the first sealing surface 254, the second sealing surface 255, the third sealing surface 256 and the fourth sealing surface 257, wherein the first sealing surface 254 is provided with a connecting hole 253 on the upper part, which is a completely closed surface, and the second sealing surface 255, the third sealing surface 256 and the fourth sealing surface 257 are respectively provided with connecting holes 253 at the vertical positions corresponding to the three drain ports 26. When the connecting hole 253 in the second sealing surface 255 or the third sealing surface 256 or the fourth sealing surface 257 corresponds to the drain port 26, the drain port 26 of the corresponding height is opened to adjust the drain position.

[0040] That is, when the dehydration mechanism of the present invention is used, the adjustment handle 23 is rotated to adjust the position of the adjustment plate 25 according to the drainage height requirement, and then the corresponding positions of the connecting hole 253 on the adjustment plate 25 and the drainage port 26 are adjusted to achieve drainage work at the drainage port 26 of the corresponding height, so as to fully discharge the clarified liquid.

[0041] Embodiment 2

[0042] The difference between this embodiment and the first embodiment is that, in this embodiment, an adjusting motor 24 is provided at the bottom of the blocking portion 29, and the output shaft of the adjusting motor 24 is connected with a transmission gear, which is meshed with the gear ring 22 to achieve flexible movement of the driving gear ring 22, and further drives the adjustment plate 25 to slide through the movement of the gear ring 22 to adjust the opening and closing of the drain outlet 26 on the same side.

[0043] Through automatic adjustment, precise control of the adjustment position can be achieved, saving manpower and costs.

[0044] Embodiment 3

[0045] Although the dehydration structure in the first or second embodiment can solve the problem that the single design of the clarified liquid discharge port of the conventional concentrator leads to insufficient clarified liquid discharge when the sediment is scarce, the conventional concentrator still has other problems, as shown below:

[0046] When traditional concentrators encounter slurries containing a lot of hard solid materials such as gravel, a large amount of gravel tends to abut against each other and accumulate at the mud outlet during a long sedimentation process, causing the mud outlet to be blocked or partially blocked.

[0047] In view of this, the present embodiment provides a concentrator, which dredges the mud outlet at the bottom of the sedimentation tank 1 by providing an auxiliary discharge mechanism 5 with a dredging component 8 to avoid blockage or partial blockage that affects the discharge of sediment materials.

[0048] like Figure 3 and Figure 4 As shown, the above-mentioned concentrator includes a sedimentation tank 1 installed at a set position and a drainage component 2 installed on the sedimentation tank 1, wherein the sedimentation tank 1 includes a sedimentation tank body 11, and a conical portion 13 is arranged at the bottom of the sedimentation tank body 11 to facilitate the gathering of precipitated materials. A discharge port 14 is installed at the center of the bottom surface of the conical portion 13 for discharging the precipitated and concentrated materials. Further, a plurality of groups of support columns 12 are arranged around the bottom of the sedimentation tank body 11 for supporting and stabilizing the sedimentation tank body 11 and fixing it to the bottom surface. At the same time, a recoil port 15 is also arranged on one side of the conical portion 13 for connecting to an external water source to clean the inside of the concentrator after the concentration is completed.

[0049] Further Figure 3 As shown, working bridges 3 are installed at both ends of the top of the drainage component 2. The working bridge 3 horizontally spans the entire concentrator. Fences are set on both sides of the working bridge 3 for safety protection, and an auxiliary discharging mechanism 5 is set in the middle of the top of the working bridge 3. The auxiliary discharging mechanism 5 corresponds to the central axis of the sedimentation tank 1 and extends into the sedimentation tank 1 to perform auxiliary discharging operations. A feeding pipe 4 is laid on one side of the auxiliary discharging mechanism 5 and is located on the working bridge 3. The inner end of the feeding pipe 4 passes through the working bridge 3 and is fixedly connected to a mixing barrel 7. A dosing component 6 is installed on the other side of the auxiliary discharging mechanism 5 and is located on the working bridge 3. The dosing component 6 is connected to the mixing barrel 7 through a pipeline. When the feeding pipe 4 feeds, the dosing component 6 inputs flocculant to further accelerate the sedimentation and concentration process.

[0050] Further Figure 4 As shown, the auxiliary discharging mechanism 5 includes a reducer 51 installed on the working bridge 3, one end of the reducer 51 is connected to the driving motor 52, and a driving shaft 53 is connected to the reducer 51, corresponding to the position of the discharge port 14, and a rake assembly 55 is arranged at the bottom of the driving shaft 53, which is used to rake the deposited material to the discharge port 14 for discharge, and stir the overall mixed material to promote the combination with the flocculant and improve the sedimentation efficiency.

[0051] Further Figure 6 and Figure 7As shown, the above-mentioned rake assembly 55 includes a plurality of pull rods 551 and rake arms 552 connected to the drive shaft 53 and a rake plate 553 installed at the bottom of the rake arm 552. Each pull rod 551 is connected to a rake arm 552 and cooperates with the drive shaft 53 to form a triangular structure. The plurality of triangular structures are evenly distributed on the drive shaft 53 to form a structure for stirring the rake material, thereby increasing the stirring area and contact area and improving efficiency. In addition, an axial hole is opened in the middle of the drive shaft 53, and a dredging assembly 8 is arranged in the axial hole. The dredging assembly 8 includes a fixing rod 81, which is inserted into the axial hole, and the top of which extends out of the drive shaft 53 and is fixed to the reducer 51 housing. The fixing rod 81 is connected to realize fixation, and a rotating chamber 531 is further provided at the bottom end of the shaft hole of the driving shaft 53. The fixing rod 81 extends into the rotating chamber 531, and a dredging cone 83 is connected in the rotating chamber 531. The dredging cone 83 is slidably sleeved on the fixing rod 81, and the dredging cone 83 and the fixing rod 81 realize up and down movement and rotation limitation through the convex strips 82, wherein the convex strips 82 are provided in multiple groups and are evenly distributed on the axial surface at the bottom of the fixing rod 81, and a groove is provided inside the dredging cone 83 to cooperate with the convex strips 82 to realize sliding fit, and an external thread is provided on the outer axial surface of the dredging cone 83, and an internal thread is provided on a section of the bottom inner wall of the rotating chamber 531.

[0052] It is worth noting that the bottom section of the inner wall of the rotating chamber 531 is provided with an internal thread, while the top section is not provided with a thread and has a diameter greater than the outer diameter of the clearing cone 83. The distance of the top section of the rotating chamber 531 is equal to the length of the external thread surface of the clearing cone 83, so that the clearing cone 83 will no longer rise when it rises to the top of the rotating chamber 531.

[0053] When the dredging cone 83 is located at the bottom of the rotating chamber 531, the dredging cone 83 is threadedly connected to the rotating chamber 531, and the dredging cone 83 is driven to move up and down by the forward and reverse rotation of the driving shaft 53. In this embodiment, the clockwise rotation of the driving shaft 53 is the forward rotation, and the forward rotation drives the dredging cone 83 to rise;

[0054] When the dredging cone 83 is located at the top of the rotating chamber 531 , the dredging cone 83 is rotationally connected to the rotating chamber 531 , and the forward rotation of the driving shaft 53 cannot drive the dredging cone 83 to move upward.

[0055] When the auxiliary discharging mechanism 5 of this embodiment works normally, the driving motor 52 is started to drive the driving shaft 53 to rotate in the forward direction, and the driving shaft 53 drives the raking assembly 55 to rotate to rake the material. At the same time, since the fixing rod 81 remains stationary and the dredging cone 83 is initially located at the top section of the rotating chamber 531 and does not cooperate with the internal thread at the bottom of the rotating chamber 531, the dredging cone 83 maintains its initial position in the moving rotating chamber 531.

[0056] When dredging work is required, the driving motor 52 drives the driving shaft 53 to rotate in the opposite direction, while the fixed rod 81 remains stationary. The driving shaft 53 cooperates with the external thread of the dredging cone 83 through the internal thread at the bottom end of the rotating chamber 531 to drive the dredging cone 83 to move downward. The dredging cone 83 moves on the fixed rod 81 and extends out of the rotating chamber 531 to dredge the blocked material accumulated at the discharge port 14. The number of reverse rotations is set manually, and the positive and negative rotations are repeated several times to fully dredge the blockage, and then the positive rotation is performed again to work normally.

[0057] Embodiment 4

[0058] like Figure 5 As shown, the difference between this embodiment and the third embodiment is that, in this embodiment, the mixing cylinder 7 includes an outer cylinder 71 and an inner screen 72, and the dosing component 6 includes a medicine storage box 61, and a spiral medicine outlet main pipe 62 is connected to the bottom of the medicine storage box 61. The medicine outlet main pipe 62 is spirally wound around the outer side surface of the outer cylinder 71, and a plurality of groups of medicine outlet branch pipes 63 are arranged at the inner end of the medicine outlet main pipe 62. The plurality of groups of medicine outlet branch pipes 63 are spirally connected to the outer cylinder 71 to realize the addition of flocculants at multiple positions and angles, so that the dosing is more uniform, wherein the feeding pipe 4 is arranged through the inner screen 72, and the medicine outlet branch pipe 63 is only arranged through the outer cylinder 71, and the inner screen 72 is used to prevent larger impurities from clogging the medicine outlet branch pipe 63.

[0059] Embodiment 5

[0060] like Figure 4 and Figure 5 As shown, the difference between this embodiment and embodiment three or embodiment four is that, in this embodiment, a support seat 56 is provided in the middle of the driving shaft 53, and a conical seat 54 is installed on the support seat 56. The upper side surface of the conical seat 54 is a conical surface, and the conical seat 54 is located directly below the mixing barrel 7, which is used to diffuse the injected slurry and evenly deposit it in the sedimentation tank 1. The diffused slurry is more fully combined with the flocculant, and the sedimentation efficiency is higher.

[0061] Furthermore, in this embodiment, a plurality of stirring rods 57 are provided at one end of the driving shaft 53 inside the mixing barrel 7 for preliminary stirring of the slurry supplied by the feeding pipe 4 and the flocculant added by the dosing assembly 6 to make the mixture more uniform and increase the sedimentation rate.

[0062] Embodiment 6

[0063] When a traditional thickener encounters a slurry containing a lot of hard solid materials such as gravel, some of the gravel will settle at the bottom and interfere with the rake-type scraper mechanism, causing the scraper device inside the thickener, namely the rake, to be unable to rotate or move normally, and then be crushed or stuck by the material.

[0064] In view of this, if Figure 6-Figure 8As shown, the difference between this embodiment and the third embodiment, the fourth embodiment or the fifth embodiment is that a driving chamber 554 is provided in the rake arm 552 of this embodiment, and the rake plate 553 penetrates the rake arm 552 through the rotating shaft and is connected to an adjusting gear 555 in the driving chamber 554. A rack 556 is meshed with one side of the plurality of adjusting gears 555, and one end of the rack 556 penetrates the rake arm 552 and extends into the rotating chamber 531. A conical surface is provided at one end of the bottom of the dredging cone 83, and the end face of the rack 556 extending into the rotating chamber 531 cooperates with the conical surface of the dredging cone 83. When dredging is performed, the downwardly moved dredging cone 83 squeezes the rack 556 to drive the adjusting gear 555 to rotate, thereby realizing the adjustment of the inclination angle of the rake plate 553. By changing the raking angle, the gravel that interferes with the engagement is scraped away to avoid motion interference.

[0065] In this embodiment, the rake assembly 55 is improved so that the angle of the rake plate 553 can be changed, and the deposited gravel can be scraped at multiple angles, thereby avoiding motion interference.

[0066] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships 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 element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0067] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. 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 or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A dehydration mechanism, used in a concentrator, characterized in that: The invention comprises a drainage assembly (2) arranged at the top of a sedimentation tank (1) of a concentrator, the drainage assembly (2) comprising a ring portion (20), a blocking portion (29) being arranged on the outer side of the ring portion (20), the blocking portion (29) and the ring portion (20) being matched to form an annular water trough (27), a plurality of drainage structures being arranged on the side wall of the ring portion (20), each of the drainage structures comprising a plurality of drainage ports (26) being arranged horizontally, the plurality of drainage ports (26) being arranged vertically at equal intervals, an adjustment cavity being arranged inside the outer end of the ring portion (20) at a position corresponding to each drainage structure, the adjustment cavity being arranged vertically through the three drainage ports (26), and an arc-shaped adjustment plate (25) being slidably arranged in the adjustment cavity; The regulating plate (25) is adjusted to open and close the drain ports (26) at different positions.

2. A dehydration mechanism according to claim 1, characterized in that: The top surface of the ring portion (20) is provided with a horizontal overflow surface (28), and the top surface height of the blocking portion (29) is higher than the overflow surface (28).

3. A dehydration mechanism according to claim 1, characterized in that: The bottoms of the plurality of adjustment plates (25) are matched and connected with a gear ring (22), the gear ring (22) is arranged around the axial surface of the sedimentation tank (1), a mounting side ring (21) is fixedly arranged on the axial surface of the sedimentation tank (1), and the gear ring (22) is rotatably arranged on the mounting side ring (21).

4. A dehydration mechanism according to claim 3, characterized in that: An adjusting motor (24) is arranged at the bottom of the blocking portion (29), and an output shaft of the adjusting motor (24) is connected to a transmission gear, which is meshedly connected to the gear ring (22).

5. A dehydration mechanism according to claim 1, characterized in that: The adjustment plate (25) comprises a connection seat (251) and a sealing adjustment portion (252); a plurality of communication holes (253) are provided on the sealing adjustment portion (252); the plurality of communication holes (253) are arranged at equal intervals in the vertical direction, and the distance between two adjacent communication holes (253) is equal to the distance between two adjacent drainage ports (26); the plurality of communication holes (253) are arranged in sequence in the horizontal direction; the inner arc surface of the sealing adjustment portion (252) is divided into a plurality of sealing surfaces, and the plurality of communication holes (253) are respectively located on the corresponding sealing surfaces; By adjusting the corresponding positions of the communicating hole (253) and the drainage port (26), the opening and closing of the drainage port (26) at the corresponding height is adjusted, thereby adjusting the drainage position.

6. A concentrator, using the dehydration mechanism according to any one of claims 1 to 5, characterized in that: The invention comprises a sedimentation tank (1), a drainage assembly (2) is installed on the sedimentation tank (1), working bridges (3) are installed at both ends of the top of the drainage assembly (2), an auxiliary discharge mechanism (5) is arranged in the middle of the working bridge (3), a feeding pipe (4) is arranged on one side of the working bridge (3), and a dosing assembly (6) is arranged on the other side, one end of the feeding pipe (4) passes through the working bridge (3) and is fixedly connected to a mixing cylinder (7), and the dosing assembly (6) is connected to the mixing cylinder (7) through a pipeline.

7. A concentrator according to claim 6, characterized in that: The auxiliary discharging mechanism (5) comprises a reducer (51), a driving motor (52) is arranged on the reducer (51), and a driving shaft (53) is connected to the reducer (51), a rake assembly (55) is arranged at the bottom of the driving shaft (53), and a dredging assembly (8) is arranged in the rake assembly (55).

8. A concentrator according to claim 7, characterized in that: The raking assembly (55) comprises a plurality of pull rods (551) and a rake arm (552) connected to a driving shaft (53), and a rake plate (553) mounted at the bottom of the rake arm (552); an axial hole is provided in the middle of the driving shaft (53); the dredging assembly (8) comprises a fixing rod (81) which is inserted into the axial hole, and the top of the fixing rod (81) extends out of the driving shaft (53) and is fixedly connected to the housing of the reducer (51); a rotating chamber (531) is provided at the bottom end of the axial hole of the driving shaft (53); a dredging cone (83) is connected to the rotating chamber (531), and the dredging cone (83) is slidably sleeved on the fixing rod (81).

9. A concentrator according to claim 8, characterized in that: The outer axial surface of the dredging cone (83) is provided with an external thread, the bottom section of the inner wall of the rotating chamber (531) is provided with an internal thread, the top section is not provided with a thread and has a diameter greater than the outer diameter of the dredging cone (83), and the distance of the top section of the rotating chamber (531) is equal to the length of the external thread surface of the dredging cone (83).

10. A concentrator according to claim 9, characterized in that: A driving chamber (554) is provided in the rake arm (552), and a rake plate (553) penetrates the rake arm (552) through a rotating shaft and is connected to an adjusting gear (555) in the driving chamber (554). A plurality of adjusting gears (555) are meshed with a rack (556) on one side, and one end of the rack (556) penetrates the rake arm (552) and extends into the rotating chamber (531) to cooperate with the dredging cone (83).

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