Double push double discharge type pusher centrifuge with inverted taper feed tube structure

Abstract

The application discloses a double-push double-out type pusher centrifuge with an inverted taper feed pipe structure, relates to the technical field of pusher centrifuges, and has the advantages that the outlet position of a tapered block and a feed pipe is fixed, and the uneven distribution of materials is reduced, and the technical scheme points are as follows: the structure comprises a feed pipe and a fixed rod penetrating through the feed pipe, one end of the fixed rod extends out of the feed pipe and is located in a centrifuge, an inverted tapered block is arranged at the end extending out of the feed pipe, and the end with a larger taper of the inverted tapered block is away from the feed pipe.

Description

Technical Field

[0001] This invention relates to the field of pusher centrifuge technology, specifically to a double-push double-outlet pusher centrifuge with an inverted cone feed pipe structure. Background Technology

[0002] Push-feed centrifuges, as a type of continuously operating filtration centrifuge, have a wide range of applications in the field of solid-liquid separation.

[0003] Chinese patent application number CN202121781704.9 discloses a piston bidirectional pusher centrifuge, including a piston rotating rod that performs horizontal linear motion and rotational motion. An inner sleeve is provided between the piston rotating rod and a bearing seat. The bearing seat is located inside an outer shell. A rotating drum is provided on the side of the bearing seat. A screen is provided inside the rotating drum. A pusher is provided inside the screen. A through hole is provided on the pusher near the screen. The outer wall of the pusher is in contact with the inner surface of the screen. The pusher performs repeated linear motion along the axial direction inside the screen. The pusher is connected to the side of the piston rotating rod through a connector. A feeding hopper is provided on the side of the pusher away from the piston rotating rod. A feed pipe is provided on the side of the feeding hopper.

[0004] The feed pipe structure in the prior art is an open structure, that is, no structure is set at the outlet. Only a conical block is set on the pusher, which is directly opposite the feed pipe. As the pusher moves horizontally back and forth, the distance between the conical block and the outlet of the feed pipe varies, resulting in uneven material distribution and excessive vibration of the centrifuge.

[0005] Therefore, the applicant has developed a new technical solution in the actual production process to solve the above-mentioned technical problems. Summary of the Invention

[0006] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a double-push double-outlet centrifuge with an inverted conical feed pipe structure, which has the advantage of fixing the position of the conical block and the outlet position of the feed pipe, thereby reducing uneven material distribution.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] The present invention provides a double-push double-outlet centrifuge with an inverted conical feed pipe structure, including a feed pipe and a fixed rod fixedly inserted inside the feed pipe. One end of the fixed rod extends out of the feed pipe into the centrifuge and an inverted conical block is provided at the extended end. The end of the inverted conical block with a larger taper is distributed away from the feed pipe.

[0009] By adopting the above technical solution, the inverted conical block is fixed at the outlet of the feed pipe by a fixing rod. At this time, the slurry flowing out of the feed pipe hits the inverted conical block and then enters the main distributor for acceleration and distribution. The slurry can be well distributed, so that the inverted conical block is fixed at the outlet position of the feed pipe, reducing the occurrence of uneven distribution.

[0010] Preferably, the fixing rod is replaced by a fixing tube for introducing washing liquid. One end of the fixing tube passes through the pusher plate and has several washing holes on the outer wall through which it passes. The other end extends out of the feed pipe through a bend. The inverted conical block is fixed on the outer wall of the fixing tube extending out of the feed pipe. The pusher plate has through holes for the fixing tube to pass through.

[0011] Preferably, the inverted conical block includes a conical cylinder fixedly mounted on a fixed tube. The conical cylinder is hollow inside, and its conical surface consists of several evenly spaced inclined plates. The fixed tube has a conical guide column coaxially mounted inside the conical cylinder. The conical surface of the guide column is in contact with the surface of each inclined plate. The fixed tube has several washing holes on its outer wall in contact with the guide column. The guide column has guide holes communicating with each washing hole. Each inclined plate closes a row of guide holes. The fixed tube is equipped with a driving component that causes the guide holes to be misaligned with the inclined plates.

[0012] Preferably, the fixed tube and the feed tube are coaxially distributed. The fixed tube includes a first tube fixedly connected to the bend and a second tube connected to the first tube and rotatably connected to the end of the first tube away from the bend. One end of the second tube extends out of the pusher plate and a first washing hole is opened on the second tube. A second washing hole is also provided on the second tube.

[0013] One end of each inclined plate on the conical cylinder is fixedly connected by an annular plate, and the other end is fixedly connected to the bottom of the conical cylinder. The annular plate is fixed on the first pipe, and the bottom of the conical cylinder is rotatably connected to the second pipe. The guide column is fixedly installed on the second pipe.

[0014] Preferably, the driving component includes a curved driving tube disposed on the outer wall of the second tube, the driving tube being curved and extended away from the outer wall of the second tube, and several driving tubes are arranged in an array along the axial direction of the second tube, and all the driving tubes after the array is completed are connected to the washing hole.

[0015] Preferably, when no washing liquid is introduced into the fixed tube, the bottom of the conical cylinder is provided with a reset element that allows the inclined plate to close the guide hole.

[0016] Preferably, the reset component includes an installation groove formed on the side with a larger taper of the guide column. The bottom of the installation groove is provided with an extension column extending towards the conical cylinder. A torsion spring is installed on the outer wall of the second tube within the installation groove. The torsion spring is sleeved on the outer wall of the second tube, and one end of the torsion spring is fixed to the bottom of the conical cylinder, while the other end is fixed to the extension column. A stop post is provided at the bottom of the conical cylinder. When the second tube rotates and causes the extension column to contact the stop post, each row of guide holes is misaligned and separated from the inclined plate.

[0017] Preferably, each of the guide holes is an oblique hole, and the outlet of each hole faces the main feeder.

[0018] Preferably, both the conical cylinder and the guide column are made of stainless steel.

[0019] Another object of the present invention is to provide a double-push double-outlet pusher centrifuge.

[0020] The beneficial effects of this invention are as follows: the inverted conical block is fixed at the outlet of the feed pipe by the fixing rod. At this time, the slurry flowing out of the feed pipe hits the inverted conical block and then enters the main distributor for acceleration and distribution. The slurry can be well distributed, so that the inverted conical block is fixed at the outlet position of the feed pipe, reducing the occurrence of uneven distribution. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0023] Figure 2 This is a schematic diagram illustrating the structure of the fixing rod in this embodiment;

[0024] Figure 3 This is a schematic diagram illustrating the structure of the pusher tray in this embodiment;

[0025] Figure 4 This is a schematic diagram illustrating the structure of the centrifuge in this embodiment;

[0026] Figure 5 This is a schematic diagram illustrating the structure of the inverted cone-shaped block in this embodiment;

[0027] Figure 6 This is a schematic diagram illustrating the structure of the guide column in this embodiment;

[0028] Figure 7This is a schematic diagram illustrating the structure of the driving transistor in this embodiment.

[0029] Explanation of reference numerals in the attached figures:

[0030] In the diagram: 1. Feed pipe; 11. Fixed rod; 12. Inverted conical block; 121. Conical cylinder; 122. Inclined plate; 123. Guide column; 124. Washing hole two; 125. Guide hole; 13. Washing hole one; 14. Bend; 15. First pipe; 16. Second pipe; 17. Annular plate; 18. Drive pipe; 19. Mounting groove; 191. Extension column; 192. Torsion spring; 2. Pusher plate; 21. Through hole; 3. Main feeder; 4. Screen cylinder; 5. Rotary drum; 6. Pusher base; 61. Support column. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1: A structure of a double-push double-outlet centrifuge with an inverted conical feed pipe 1, as follows: Figure 2 It includes a feed pipe 1 and a fixing rod 11 fixedly inserted inside the feed pipe 1. The fixing rod 11 and the feed pipe 1 are preferably coaxial. One end of the fixing rod 11 extends out of the end of the feed pipe 1 located inside the centrifuge and is provided with an inverted conical block 12 at the extended end. The end of the inverted conical block 12 with a larger taper is distributed away from the feed pipe 1. The inverted conical block 12 and the fixing rod 11 are also coaxial. At this time, the fixing rod 11 can be fixed to the inner wall of the feed pipe 1 by several connecting rods. Each connecting rod is axially arranged on the fixing rod 11.

[0033] like Figure 2 The inverted conical block 12 is fixed at the outlet of the feed pipe 1 by the fixing rod 11. At this time, the slurry flowing out from the feed pipe 1 hits the inverted conical block 12 and then enters the main distributor 3 for acceleration and distribution. The slurry can be well distributed, so that the inverted conical block 12 is fixed at the outlet position of the feed pipe 1, reducing the occurrence of uneven distribution.

[0034] like Figure 1 and Figure 3Alternatively, the fixing rod 11 can be replaced with a fixing tube for introducing washing liquid. Both the fixing tube and the feed tube 1 are horizontally distributed. One end of the fixing tube passes through the pusher plate 2 and has several washing holes 13 on the outer wall through which it passes. The other end extends out of the feed tube 1 through the bent tube 14. At this time, one end of the bent tube 14 and the feed tube 1 are located outside the centrifuge. The inverted conical block 12 is fixed on the outer wall of the fixing tube extending out of the feed tube 1. The pusher plate 2 has a through hole 21 for the fixing tube to pass through.

[0035] like Figure 1 and Figure 3 At this time, the washing liquid is delivered to the fixed pipe through the bent pipe 14, and then the screen cylinder 4 inside the pusher plate 2 is cleaned through each washing hole 13, so that the fixed pipe can not only fix the inverted cone block 12, but also deliver the washing liquid.

[0036] like Figure 1 and Figure 3 and Figure 4 In application, the parts around the feed pipe 1 are arranged as follows: the feed pipe 1 is installed in a feed pipe 1 seat, and a fixed pipe passes through a pusher plate 2. The pusher plate 2 has a main feeder 3 and an auxiliary feeder on each side (for detailed structure, please refer to the patent application No. 2025102540479, "Double Push Double Out Solid-Liquid Separation Structure for Pusher Centrifuge and its Centrifuge"). Outside the pusher plate 2 is a rotating drum 5, inside which is a screen cylinder 4. The pusher base 6 rotates and reciprocates, and is located inside the rotating drum 5. The pusher base 6 has eight support pillars 61, and the pusher plate 2 is mounted on the support pillars 61. After the centrifuge finishes working, material will remain inside both the screen cylinder 4 and the main feeder 3. The washing hole 13 is for easy cleaning of the material on the screen cylinder 4 inside the pusher plate 2.

[0037] like Figure 5 and Figure 6 and Figure 7 In order to clean the inside of the main feeder 3, the inverted conical block 12 includes a conical cylinder 121 fixedly mounted on a fixed tube. The conical cylinder 121 is hollow inside. The conical surface of the conical cylinder 121 is a number of evenly spaced inclined plates 122. The inclination direction of each inclined plate 122 is along the conical direction of the conical cylinder 121. The fixed tube is coaxially provided with a conical guide column 123 inside the conical cylinder 121. The conical surface of the guide column 123 is in contact with the plate surface of each inclined plate 122. The fixed tube has a number of washing holes 124 on the outer wall in contact with the guide column 123. The guide column 123 has a guide hole 125 that communicates with each washing hole. Each inclined plate 122 closes a row of guide holes 125, so that the inclined plate 122 closes all the guide holes 125. The fixed tube is provided with a driving component that makes the guide holes 125 misaligned with the inclined plate 122.

[0038] like Figure 5 and Figure 6 and Figure 7 The fixed tube and the feed tube 1 are coaxially distributed. The fixed tube includes a first tube 15 fixedly connected to the bend tube 14 and a second tube 16 connected to the first tube 15 and rotatably connected to the end of the first tube 15 away from the bend tube 14. The first tube 15 and the second tube 16 are located on the same straight line. One end of the second tube 16 passes through the pusher plate 2 and a washing hole 13 is opened on the second tube 16. A washing hole 24 is also set on the second tube 16.

[0039] like Figure 5 and Figure 6 and Figure 7 One end of each inclined plate 122 on the conical cylinder 121 is fixedly connected by an annular plate 17, and the other end is fixedly connected to the bottom of the conical cylinder 121. The annular plate 17 is fixed on the first tube 15, so that the position of the conical cylinder 121 is fixed. The bottom of the conical cylinder 121 is rotatably connected to the second tube 16. The guide column 123 is fixedly set on the second tube 16 so that the guide column 123 can rotate together when the second tube 16 rotates.

[0040] like Figure 5 and Figure 6 and Figure 7 The driving component includes a curved driving tube 18 disposed on the outer wall of the second tube 16. The driving tube 18 bends and extends away from the outer wall of the second tube 16, and there are several driving tubes 18 arranged in an array along the axial direction of the second tube 16. The number of driving tubes 18 after the array is completed is consistent with the number of washing holes 13 on the longitudinal section of the second tube 16, and each driving tube 18 is connected to the washing hole 13.

[0041] like Figure 5 and Figure 6 and Figure 7 Each guide hole 125 is an oblique hole, and the outlet is facing the main feeder 3. When the washing liquid is not introduced into the fixed tube, the bottom of the conical cylinder 121 is provided with a reset member that causes the oblique plate 122 to close the guide hole 125.

[0042] like Figure 5 and Figure 6 and Figure 7The reset component includes a mounting groove 19 on the side of the guide column 123 with a larger taper. The opening of the mounting groove 19 faces the bottom of the conical cylinder 121. The bottom of the conical cylinder 121 is a circular plate. The bottom of the mounting groove 19 is provided with an extension column 191 extending towards the conical cylinder 121. A torsion spring 192 is installed on the outer wall of the second tube 16 in the mounting groove 19. The torsion spring 192 is sleeved on the outer wall of the second tube 16, and one end of the torsion spring 192 is fixed to the bottom of the conical cylinder 121, and the other end is fixed to the extension column 191. A baffle (not shown in the figure) is provided at the bottom of the conical cylinder 121. When the second tube 16 rotates and causes the extension column 191 to come into contact with the baffle, each row of guide holes 125 is misaligned and separated from the inclined plate 122.

[0043] Working principle: When the washing liquid is pumped into the first pipe 15 and the second pipe 16 through the bent pipe 14, the washing liquid enters the drive pipe 18 through the washing hole 13. Since the drive pipe 18 is bent, the sprayed washing liquid facilitates the tilting of the screen cylinder 4 and drives the second pipe 16 to rotate, which in turn drives the guide column 123 to rotate. At this time, the guide hole 125 is misaligned with the inclined plate 122, so that the inclined plate 122 opens each guide hole 125, which facilitates the washing liquid to be sprayed out from the washing hole 124 and the guide hole 125, and then sprayed towards the main feeder 3 to achieve the cleaning of the material in the main feeder 3.

[0044] At this time, the extension column 191 contacts the baffle column, thereby restricting the second tube 16 from continuing to rotate, so that the guide hole 125 continues to spray out washing liquid; when the washing liquid is blocked, the second tube 16 loses the power provided by the washing liquid, and the extension column 191 moves away from the baffle column under the action of the torsion spring 192, so that each row of guide holes 125 rotates towards the corresponding inclined plate 122. When the torsion spring 192 is in its natural state, each inclined plate 122 closes each row of guide holes 125 so that the slurry can flow out of the feed pipe 1 again. At this time, the conical surface of the guide column 123 and each inclined plate 122 play a role in distributing and guiding the slurry.

[0045] Both the conical cylinder 121 and the guide column 123 are made of stainless steel. Stainless steel has good corrosion resistance, can withstand large thrust and centrifugal force, and has a smooth surface that is easy to clean and maintain.

[0046] Example 2: A double-push, double-discharge centrifuge, such as... Figure 4 This includes the above-described embodiment 1.

[0047] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A double-push, double-outlet centrifuge with an inverted conical feed pipe structure, characterized in that, Includes a feed pipe (1) and a fixing rod (11) fixedly inserted inside the feed pipe (1). One end of the fixing rod (11) extends out of the feed pipe (1) at one end inside the centrifuge and is provided with an inverted conical block (12) at the extended end. The end of the inverted conical block (12) with a larger taper is distributed away from the feed pipe (1). The fixing rod (11) is replaced by a fixing tube for introducing washing liquid. One end of the fixing tube passes through the pusher plate (2) and has several washing holes (13) on the outer wall through which it passes. The other end extends out of the feed pipe (1) through the bent pipe (14). The inverted cone block (12) is fixed on the outer wall of the fixing tube extending out of the feed pipe (1). The inverted conical block (12) includes a conical cylinder (121) fixedly mounted on a fixed tube. The conical cylinder (121) is hollow inside. The conical surface of the conical cylinder (121) is a number of evenly spaced inclined plates (122). The fixed tube has a conical guide column (123) coaxially mounted inside the conical cylinder (121). The conical surface of the guide column (123) is in contact with the plate surface of each inclined plate (122). The fixed tube has a number of washing holes (124) on its outer wall in contact with the guide column (123). The guide column (123) has a guide hole (125) communicating with each washing hole. Each inclined plate (122) closes a row of guide holes (125). The fixed tube is provided with a driving component that makes the guide hole (125) misaligned with the inclined plate (122).

2. The structure of the double-push double-outlet centrifuge with an inverted conical feed pipe as described in claim 1, characterized in that, The fixed tube and the feed tube (1) are coaxially distributed. The fixed tube includes a first tube (15) fixedly connected to the bend (14) and a second tube (16) connected to the first tube (15) and rotatably connected to the end of the first tube (15) away from the bend (14). One end of the second tube (16) extends out of the pusher plate (2) and a first washing hole (13) is opened on the second tube (16). A second washing hole (124) is also provided on the second tube (16). One end of each inclined plate (122) on the conical cylinder (121) is fixedly connected by an annular plate (17), and the other end is fixedly connected to the bottom of the conical cylinder (121). The annular plate (17) is fixed on the first pipe (15), and the bottom of the conical cylinder (121) is rotatably connected to the second pipe (16). The guide column (123) is fixedly installed on the second pipe (16).

3. The structure of a double-push double-outlet centrifuge with an inverted conical feed pipe as described in claim 2, characterized in that, The driving component includes a curved driving tube (18) disposed on the outer wall of the second tube (16). The driving tube (18) bends and extends away from the outer wall of the second tube (16), and there are several driving tubes (18) arranged in an axial array along the second tube (16). After the array is completed, the driving tubes (18) are all connected to the first washing hole (13).

4. The structure of a double-push double-outlet centrifuge with an inverted conical feed pipe as described in claim 3, characterized in that, When no washing liquid is introduced into the fixed tube, the bottom of the conical tube (121) is provided with a reset element that allows the inclined plate (122) to close the guide hole (125).

5. The structure of a double-push double-outlet centrifuge with an inverted conical feed pipe as described in claim 4, characterized in that, The reset component includes an installation groove (19) on the side of the guide column (123) with a larger taper. The bottom of the installation groove (19) is provided with an extension column (191) extending towards the conical cylinder (121). A torsion spring (192) is installed on the outer wall of the second tube (16) in the installation groove (19). The torsion spring (192) is sleeved on the outer wall of the second tube (16), and one end of the torsion spring (192) is fixed to the bottom of the conical cylinder (121), and the other end is fixed to the extension column (191). A baffle is provided at the bottom of the conical cylinder (121). When the second tube (16) rotates and drives the extension column (191) to collide with the baffle, each row of guide holes (125) is misaligned and separated from the inclined plate (122).

6. The structure of a double-push double-outlet centrifuge with an inverted conical feed pipe as described in claim 1 or 5, characterized in that, Each of the aforementioned guide holes (125) is an oblique hole, and the outlet of each hole faces the main feeder (3).

7. The structure of a double-push double-outlet centrifuge with an inverted conical feed pipe as described in claim 5, characterized in that, Both the conical cylinder (121) and the guide column (123) are made of stainless steel.

8. A double-push, double-discharge centrifuge, characterized in that, The invention includes a double-push double-outlet centrifuge with an inverted cone feed pipe structure as described in any one of claims 1-7.

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