Discharging mechanism for solid-liquid separation device

Abstract

The utility model provides a discharge mechanism for a solid-liquid separation device, which comprises a discharge seat, a discharge cavity communicated with the lower end of a material extrusion channel is arranged in the discharge seat, the peripheral end part of the discharge cavity extends outwards to be communicated with the outer wall of the discharge seat and is detachably provided with a plurality of sealing parts driven by a discharge driving device in a sealing manner, and the discharge driving device drives the discharge driving device to rotate. The upper side and the lower side of the discharging cavity are each provided with a plurality of liquid pumping holes communicating with the discharging cavity and the corresponding pumping device. The solid materials in the extrusion channel are discharged to the discharging cavity, the suction device sucks liquid carried by the solid materials in the discharging cavity through the liquid suction holes, and the discharging driving device drives the sealing pieces to be separated from the peripheral end so that the solid materials can be discharged. The stroke of the solid materials extruded out of the extrusion channel is prolonged through the discharging cavity, so that the extrusion channel is vertically arranged, the extrusion speed is increased under the self-weight action of the solid materials, and the extrusion mode that the burden of the extrusion driving device is reduced is achieved.

Description

Technical Field

[0001] The utility model relates to the field of separation devices, in particular to a discharging mechanism for a solid-liquid separation device. Background Art

[0002] Solid-liquid separation refers to the operation of separating the liquid and solid materials in a mixed liquid. In the prior art, a solid-liquid separation device includes a feeding mechanism, an extruding mechanism and a discharging mechanism connected in sequence. The feeding mechanism inputs the mixed liquid into an extruding channel with spiral blades in the extruding mechanism for extrusion, so that the liquid in the mixed liquid is filtered out through the filter holes on the side wall of the extrusion channel, and the solid materials are discharged after the elastic plug of the discharging mechanism at the outlet end of the extrusion channel is squeezed open, thereby achieving solid-liquid separation.

[0003] However, the most common way to implement the elastic plug of the existing discharging mechanism is to plug it in the extrusion channel through spring force, which requires the extrusion channel to be set horizontally or the outlet end to be tilted upward to prevent the liquid from leaking out when the solid material is extruded. This leads to a slow extrusion speed of the solid material, and then to low solid-liquid separation efficiency. Therefore, the discharging mechanism adopted by the existing solid-liquid separation device is difficult to ensure high discharging efficiency when applied to industrial production, and cannot be used for solid-liquid separation of large volumes of mixed liquids.

[0004] The purpose of the present invention is to design a discharging mechanism for a solid-liquid separation device in view of the problems existing in the above-mentioned prior art. Utility Model Content

[0005] In view of the problems existing in the above-mentioned prior art, the utility model provides a discharging mechanism for a solid-liquid separation device, which can effectively solve the problems existing in the above-mentioned prior art.

[0006] The technical solution of the utility model is:

[0007] A discharging mechanism for a solid-liquid separation device, the solid-liquid separation device comprising a vertically arranged extrusion channel for separating solid materials and liquid contained in a mixed liquid, the discharging mechanism comprising:

[0008] A discharge seat is provided with a discharge cavity connected to the lower end of the extrusion channel, the outer peripheral end of the discharge cavity extends outward to connect to the outer wall of the discharge seat and is detachably sealed with a plurality of sealing members driven by a discharge driving device, and the upper and lower sides of the discharge cavity are respectively provided with a plurality of suction holes connected to the discharge cavity and a corresponding suction device; the solid material in the extrusion channel is discharged into the discharge cavity, and after the suction device sucks the liquid carried by the solid material in the discharge cavity through the plurality of suction holes, the discharge driving device drives the plurality of sealing members to detach from the outer peripheral end to discharge the solid material.

[0009] Furthermore, the discharge seat is installed on a corresponding frame, and the discharge seat includes an upper pressure seat and a lower pressure seat which are distributed at an upper and lower interval and form the discharge cavity therebetween, and the outer peripheral end portion is inclined outward and extends downward in a slope shape, and a first negative pressure cavity and a second negative pressure cavity connected to the suction device are respectively formed in the upper pressure seat and the lower pressure seat, and a plurality of liquid extraction holes are respectively and evenly distributed on the opposite surfaces of the upper pressure seat and the lower pressure seat and respectively connect the first negative pressure cavity and the second negative pressure cavity with the discharge cavity.

[0010] Furthermore, a plurality of first reinforcing plates are fixedly provided at circumferential intervals in the first negative pressure chamber, and upper ends of the plurality of first reinforcing plates are provided with gaps with the inner top of the first negative pressure chamber. The plurality of first reinforcing plates divide the first negative pressure chamber into a plurality of interconnected first negative pressure zones.

[0011] Furthermore, a plurality of second reinforcing plates are fixedly provided at circumferential intervals in the second negative pressure chamber, and upper ends of the plurality of second reinforcing plates are provided with gaps with the inner top of the second negative pressure chamber. The plurality of second reinforcing plates divide the second negative pressure chamber into a plurality of interconnected second negative pressure zones.

[0012] Furthermore, a plurality of discharge troughs are fixedly provided on the side of the lower pressure seat, one end of which corresponds to the outer peripheral end portion and the other end of which extends downward and outward in an inclined manner. The number of the closing parts is two and they are configured as arc-shaped covers. The discharge driving device is configured as a telescopic device installed on the frame, and the plurality of discharge troughs are arranged on the lower sides of the plurality of closing parts.

[0013] Therefore, the utility model provides the following effects and / or advantages:

[0014] 1. The solid material in the extrusion channel of the present application is discharged to the discharge chamber, and the suction device sucks the liquid carried by the solid material in the discharge chamber. After the secondary solid-liquid separation is achieved, the discharge drive device drives several sealing parts to detach from the outer peripheral end to discharge the solid material. Thus, the travel of the solid material after being squeezed out of the extrusion channel is extended through the discharge chamber, and the solid material carrying the liquid is further separated into solid and liquid by the suction device in the discharge chamber, so that the extrusion channel is vertically arranged to utilize the dead weight of the solid material to accelerate the extrusion rate and reduce the burden of the extrusion drive device. The extrusion method can be realized, and the solid-liquid separation efficiency is improved and the energy consumption is reduced under the premise of ensuring the solid-liquid separation effect, and the service life of the extrusion drive device is extended. At the same time, the purity of the solid material when discharged is further improved, and the discharge efficiency of the solid-liquid separation device combined with the discharge mechanism can be ensured when it is used in industrial production, so that it is suitable for solid-liquid separation of large-volume mixed liquids.

[0015] 2. The present application sets a sloped outer end portion so that the solid material can slide outward under the action of its own weight after entering the discharge chamber, thereby reducing the extrusion discharge pressure at the discharge end of the extrusion channel and further reducing the driving burden of the rotary drive device. At the same time, through the cooperation of the evenly distributed liquid extraction holes and the first negative pressure chamber and the second negative pressure chamber, the suction device can evenly suck out the liquid carried by the solid material in the discharge chamber, further improving the effect of the secondary solid-liquid separation and improving the purity of the solid material when it is discharged.

[0016] 3. The present application improves the structural strength of the upper pressure seat and the lower pressure seat by adding a plurality of first reinforcing plates and a plurality of second reinforcing plates. At the same time, the plurality of first reinforcing plates and the plurality of second reinforcing plates respectively separate the first negative pressure chamber and the second negative pressure chamber into a plurality of first negative pressure areas and a plurality of second negative pressure areas that are connected, thereby reducing the airflow between the plurality of first negative pressure areas and the plurality of second negative pressure areas, improving the negative pressure suction intensity of the plurality of first negative pressure areas and the plurality of second negative pressure areas, and improving the negative pressure liquid pumping effect.

[0017] It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the discharge mechanism provided in this application after being used in a solid-liquid separation device.

[0019] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure after removing the frame.

[0020] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle.

[0021] Figure 4 for Figure 3 Schematic diagram of the partial structure of the middle extrusion mechanism.

[0022] Figure 5 for Figure 3 Schematic diagram of the partial structure of the middle discharging mechanism.

[0023] Figure 6 for Figure 5 A local enlarged schematic diagram of point A in the middle.

[0024] Figure 7 This is a schematic diagram of the structure of the extrusion drive device provided in this application.

[0025] Figure 8 Schematic diagram of the explosion structure of the discharge seat provided in this application. DETAILED DESCRIPTION

[0026] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the accompanying drawings:

[0027] Reference Figure 1-8 As shown, a discharging mechanism for a solid-liquid separation device, the solid-liquid separation device comprises an extrusion channel 21 arranged vertically and used to input a mixed liquid containing liquid and solid materials, a filtrate layer 22 for filtrating liquid is arranged on the side wall of the extrusion channel 21, and an extrusion member 23 driven by an extrusion driving device 24 to extrude materials is arranged in the extrusion channel 21;

[0028] The discharging mechanism comprises:

[0029] The discharge seat 3 is provided with a discharge cavity 31 connected to the lower end of the extrusion channel 21. The outer peripheral end 311 of the discharge cavity 31 extends outward to connect to the outer wall of the discharge seat 3 and is detachably sealed with a plurality of sealing members 35 driven by the discharge drive device 36. The upper and lower sides of the discharge cavity 31 are respectively provided with a plurality of liquid extraction holes 32 connected to the discharge cavity 31 and the corresponding suction device; specifically, the suction device can extract liquid and then discharge it;

[0030] The extrusion member 23 squeezes the solid material in the extrusion channel 21 into the discharge chamber 31, and at the same time squeezes the liquid in the extrusion channel 21 to be filtered out through the filtrate layer 22 and then discharged, thereby realizing primary solid-liquid separation. The suction device sucks the liquid carried by the solid material in the discharge chamber 31 through the plurality of suction holes 32, and after realizing secondary solid-liquid separation, the discharge drive device 36 drives the plurality of closing members 35 to detach from the outer peripheral end 311 to discharge the solid material.

[0031] The arrangement of the above-mentioned structure prolongs the travel of the solid material after being squeezed out of the extrusion channel 21 through the discharge chamber 31, and further realizes solid-liquid separation of the solid material carrying the liquid through the suction device in the discharge chamber 31, so that the extrusion channel 21 is vertically arranged to utilize the dead weight of the solid material to accelerate the extrusion rate and reduce the burden of the extrusion drive device 24. The solid-liquid separation efficiency is improved while ensuring the solid-liquid separation effect, and the service life of the extrusion drive device 24 is extended. At the same time, the purity of the solid material during discharge is further improved, thereby ensuring the discharge efficiency of the solid-liquid separation device when combined with the discharge mechanism when applied to industrial production, making it suitable for solid-liquid separation of large volumes of mixed liquids.

[0032] In order to further improve the effect of the discharge seat 3 on the secondary solid-liquid separation of the solid material in the discharge chamber 31, the extrusion mechanism 2 and the discharge seat 3 are installed on the corresponding frame 4 in sequence from top to bottom, and the discharge seat 3 includes an upper pressure seat 33 and a lower pressure seat 34 which are distributed at an upper and lower interval and form the discharge chamber 31 therebetween, and the outer peripheral end 311 is inclined outward and extends downward in a sloped shape. Specifically, in this embodiment, the outer peripheral end 311 is set to be an annular cone shape. In other embodiments, the outer peripheral end 311 can also be set to other sloped structures. The upper pressure seat 33 and the lower pressure seat 34 respectively form a first negative pressure chamber 331 and a second negative pressure chamber 341 connected to the suction device, and a plurality of the liquid extraction holes 32 are respectively evenly distributed on the opposite surfaces of the upper pressure seat 33 and the lower pressure seat 34 and respectively connect the first negative pressure chamber 331 and the second negative pressure chamber 341 with the discharge chamber 31. Therefore, by setting the sloped outer peripheral end 311, the solid material can slide outward under the action of its own weight after entering the discharge chamber 31, thereby reducing the extrusion discharge pressure at the discharge end of the extrusion channel 21, and further reducing the driving burden of the rotary drive device. At the same time, through the cooperation of the evenly distributed liquid extraction holes 32 and the first negative pressure chamber 331 and the second negative pressure chamber 341, the suction device can evenly suck the liquid carried by the solid material in the discharge chamber 31, further improving the effect of the secondary solid-liquid separation and improving the purity of the solid material when it is discharged.

[0033] In order to improve the structural strength of the upper pressure seat 33, a plurality of first reinforcing plates 332 are fixedly arranged at intervals in the circumferential direction in the first negative pressure chamber 331, and a gap is set between the upper ends of the plurality of first reinforcing plates 332 and the inner top of the first negative pressure chamber 331, and the plurality of first reinforcing plates 332 divide the first negative pressure chamber 331 into a plurality of interconnected first negative pressure areas 333. Thus, the structural strength of the upper pressure seat 33 is improved by adding a plurality of first reinforcing plates 332, and at the same time, the airflow between the plurality of first negative pressure areas 333 can be reduced, the negative pressure suction strength of the plurality of first negative pressure areas 333 is improved, and the negative pressure liquid extraction effect is improved.

[0034] In order to improve the structural strength of the lower pressure seat 34, a plurality of second reinforcing plates 342 are fixedly arranged at intervals in the circumferential direction in the second negative pressure chamber 341, and a gap is set between the upper ends of the plurality of second reinforcing plates 342 and the inner top of the second negative pressure chamber 341, and the plurality of second reinforcing plates 342 divide the second negative pressure chamber 341 into a plurality of interconnected second negative pressure areas 343. Thus, the structural strength of the lower pressure seat 34 is improved by adding a plurality of second reinforcing plates 342, and at the same time, the airflow between the plurality of second negative pressure areas 343 can be reduced, the negative pressure suction strength of the plurality of second negative pressure areas 343 is improved, and the negative pressure liquid extraction effect is improved.

[0035] In order to improve the discharge efficiency of the liquid in the extrusion mechanism 2, the filtrate layer 22 is set as a filter cartridge, and a plurality of filtrate holes 221 are evenly arranged on the side wall of the filter cartridge in the circumferential direction. The extrusion mechanism 2 also includes a sleeve 25 which is sealed and sleeved on the outside of the filter cartridge to form a filtrate cavity 26 between the filter cartridge and a plurality of drainage pipes 27 which are connected to the lower part of the sleeve 25. The lower end of the sleeve 25 is detachably connected to the upper end of the upper pressing seat 33. Therefore, when the extrusion drive device 24 presses down the solid material in the material extrusion channel 21, part of the liquid in the extrusion channel 21 is simultaneously extruded through the plurality of filtrate holes 221 to the filtrate cavity 26 and then discharged through the plurality of drainage pipes 27, thereby improving the discharge efficiency of the liquid in the extrusion mechanism 2.

[0036] In order to improve the driving stability of the extrusion drive device 24, the extrusion drive device 24 includes a rotating shaft 241 vertically penetrating the extrusion channel 21, the upper pressure seat 33 and the lower pressure seat 34, a first motor 242 arranged at the bottom of the lower pressure seat 34 and the rotating output end is connected to the lower end of the rotating shaft 241, and a second motor 243 is arranged at the top of the frame 4 and the rotating output end is connected to the upper end of the rotating shaft 241. The extrusion member 23 is configured as a spiral blade fixedly mounted on the rotating shaft 241. Therefore, when the solid-liquid separation device is used in the solid-liquid separation of a large volume of mixed liquid, the driving burden of the first motor 242 is further reduced by adding the second motor 243, and the second motor 243 and the first motor 242 distributed up and down synchronously drive the rotating shaft 241 to rotate, thereby ensuring the stability of the rotation of the rotating shaft 241, avoiding the deviation of the rotating shaft 241 when the spiral blades extrude materials, improving the stability of the extrusion drive device 24 driving the spiral blades to extrude materials, and improving the feasibility of applying the solid-liquid separation device to the solid-liquid separation of large volumes of mixed liquids in industrial production.

[0037] In order to further improve the driving stability of the extrusion drive device 24, the bottom of the lower pressing seat 34 is concave to form a mounting groove 344, and the rotation output end of the first motor 242 is arranged in the mounting groove 344. Therefore, the rotation output end of the first motor 242 is moved upward by the arrangement of the mounting groove 344, so that the length of the rotating shaft 241 can be shortened accordingly, and the distance between the rotation output end of the first motor 242 and the extrusion channel 21 is shortened, thereby improving the stability of the first motor 242 driving the rotating shaft 241 to rotate.

[0038] In order to guide the discharge of solid materials, a plurality of discharge troughs 37 are fixedly arranged on the side of the lower pressure seat 34, one end of which corresponds to the outer peripheral end 311 and the other end of which extends downward and outward. Specifically, there are two closing members 35 and they are configured as arc-shaped covers. In this embodiment, the closing member 35 is configured as a locking semi-ring, and the discharge drive device 36 is configured as a telescopic device installed on the frame 4. A plurality of the discharge troughs 37 are arranged on the lower side of a plurality of the closing members 35.

[0039] In order to improve the efficiency of the first-stage solid-liquid separation, the invention also includes a feeding mechanism 1 whose discharge port 12 is connected to the extrusion channel 21. Specifically, the rotating shaft 241 vertically penetrates the feeding mechanism 1, and the second motor 243 is arranged above the feeding mechanism 1. The feeding mechanism 1 is configured as a hopper whose inner diameter of the lower half gradually decreases to form a sedimentation zone 14, and the feeding mechanism 1 includes a feeding port 11 and a discharge port 12 distributed up and down, and an overflow port 13 located between the feeding port 11 and the discharge port 12. The sedimentation zone 14 has a The outer wall of the upper end is fixed with an annular overflow groove 15 with an opening facing upward, and a plurality of overflow pipes 16 are provided through the bottom of the overflow groove 15. The upper end of the hopper forms the overflow port 13. The solid materials and part of the liquid in the feeding mechanism 1 sink into the extrusion channel 21, and the remaining liquid is discharged through the overflow port 13, the overflow groove 15 and the overflow pipe 16 in sequence. The liquid overflowing from the feeding mechanism 1 can first flow into the overflow groove 15, and then be diverted and discharged through a plurality of overflow pipes 16, thereby improving the overflow efficiency of the feeding mechanism 1. Thus, by setting up the overflow port 13, the overflow groove 15 and the overflow pipe 16, a primary separation step is added before the primary separation and the secondary separation, the solid content of the mixed liquid entering the extrusion channel 21 is increased, and the efficiency of the primary solid-liquid separation is improved, thereby improving the overall solid-liquid separation effect and efficiency, and further improving the adaptability of the solid-liquid separation device to large-volume mixed liquids in industrial production.

[0040] Working principle:

[0041] The feeding mechanism 1 inputs the mixed liquid into the extrusion channel 21;

[0042] The extrusion member 23 squeezes the solid material in the extrusion channel 21 into the discharge cavity 31, and squeezes the liquid in the extrusion channel 21 to be filtered out through the filtrate layer 22;

[0043] After the suction device sucks the liquid carried by the solid material in the discharge chamber 31 through the plurality of liquid suction holes 32 , the discharge driving device 36 drives the plurality of closing members 35 to separate from the outer peripheral end portion 311 to discharge the solid material.

[0044] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A discharging mechanism for a solid-liquid separation device, the solid-liquid separation device comprising a vertically arranged extrusion channel (21) for separating solid materials and liquid contained in a mixed liquid, characterized in that: The discharging mechanism comprises: A discharge seat (3) is provided with a discharge cavity (31) in the interior thereof which is connected to the lower end of the extrusion channel (21); an outer peripheral end portion (311) of the discharge cavity (31) extends outwardly to be connected to the outer wall of the discharge seat (3) and is detachably sealed with a plurality of sealing members (35) driven by a discharge driving device (36); and a plurality of liquid extraction holes (32) connecting the discharge cavity (31) and a corresponding suction device are respectively provided on the upper and lower sides of the discharge cavity (31); solid material in the extrusion channel (21) is discharged into the discharge cavity (31); after the suction device sucks the liquid carried by the solid material in the discharge cavity (31) through the plurality of liquid extraction holes (32), the discharge driving device (36) drives the plurality of sealing members (35) to separate from the outer peripheral end portion (311) so that the solid material is discharged.

2. A discharging mechanism for a solid-liquid separation device according to claim 1, characterized in that: The discharge seat (3) is installed on the corresponding frame (4), and the discharge seat (3) includes an upper pressure seat (33) and a lower pressure seat (34) which are distributed at an upper and lower interval and form the discharge chamber (31) therebetween. The outer peripheral end (311) is inclined outward and extends downward in a slope shape. The upper pressure seat (33) and the lower pressure seat (34) respectively form a first negative pressure chamber (331) and a second negative pressure chamber (341) connected to the suction device. A plurality of liquid extraction holes (32) are evenly distributed on the opposite surfaces of the upper pressure seat (33) and the lower pressure seat (34) and respectively connect the first negative pressure chamber (331) and the second negative pressure chamber (341) with the discharge chamber (31).

3. A discharging mechanism for a solid-liquid separation device as claimed in claim 2, characterized in that: A plurality of first reinforcing plates (332) are fixedly arranged at intervals in the circumferential direction inside the first negative pressure chamber (331), and upper ends of the plurality of first reinforcing plates (332) are arranged with gaps between the inner tops of the first negative pressure chamber (331). The plurality of first reinforcing plates (332) divide the first negative pressure chamber (331) into a plurality of interconnected first negative pressure areas (333).

4. A discharging mechanism for a solid-liquid separation device as claimed in claim 2, characterized in that: A plurality of second reinforcing plates (342) are fixedly arranged at intervals in the circumferential direction inside the second negative pressure chamber (341), and upper ends of the plurality of second reinforcing plates (342) are arranged with gaps between the inner top of the second negative pressure chamber (341). The plurality of second reinforcing plates (342) divide the second negative pressure chamber (341) into a plurality of interconnected second negative pressure areas (343).

5. A discharging mechanism for a solid-liquid separation device as claimed in claim 2, characterized in that: The side of the lower pressing seat (34) is fixedly provided with a plurality of discharge grooves (37) with one end corresponding to the outer peripheral end portion (311) and the other end extending outward and downward at an angle. The number of the closing members (35) is two and they are configured as arc-shaped covers. The discharge driving device (36) is configured as a telescopic device installed on the frame (4), and the plurality of discharge grooves (37) are arranged on the lower side of the plurality of closing members (35).

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