CN216025576U

CN216025576U - Piston pushes away even cloth structure of material centrifuge

Info

Publication number: CN216025576U
Application number: CN202121143756.3U
Authority: CN
Inventors: 颜国良; 王深波; 王细检
Original assignee: Xiangtan Huibo Centrifuge Co ltd
Current assignee: Xiangtan Huibo Centrifuge Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-03-15
Anticipated expiration: 2031-05-26

Abstract

The utility model discloses a uniform material distribution structure of a piston pusher centrifuge, belonging to the field of horizontal piston pusher centrifugers, comprising a primary rotary drum, a secondary rotary drum and a feeding pipe, wherein the inner surface of the primary rotary drum is provided with a screen, the tail outlet of the feeding pipe is provided with a material distribution disc, the material distribution disc is in an annular disc-shaped structure, and the feeding pipe penetrates through a central through hole of the material distribution disc; the front end of the outlet of the feeding pipe is provided with a material pushing disc, the material pushing disc is of an annular disc-shaped structure, the periphery of the material pushing disc is connected with the screen, and the material distributing disc is connected with the material pushing disc through a material distributing disc bolt; and a check ring is arranged on one side surface of the material distribution disc opposite to the material pushing disc.

Description

Piston pushes away even cloth structure of material centrifuge

Technical Field

The utility model relates to the field of horizontal piston pusher centrifuge devices, in particular to a uniform material distribution structure of a piston pusher centrifuge.

Background

The horizontal piston pusher centrifuge is suitable for chemical industry, chemical fertilizer, alkali production, salt production and other industries, and is particularly suitable for solid-liquid separation of ammonium bicarbonate, ammonium chloride, mirabilite, cotton seed pickling and the like. The traditional horizontal piston pusher centrifuge can generally separate suspension with solid-phase particle size larger than 0.1mm and concentration larger than 40%, when the traditional horizontal piston pusher centrifuge is used for separating the suspension with solid-phase content lower than 40%, the suspension must be pre-thickened outside the centrifuge through other equipment, and after the content of the solid component in the suspension is improved, the centrifuge can be used for separating solid from liquid, so that the working steps are increased, the operation is troublesome, the working efficiency is difficult to improve, and the machine capacity is not favorable for further improving.

We provide a plurality of scheme structures aiming at thickening of the suspension liquid to meet the requirements of different customers, provide products with different costs and can adapt to the requirements of different working conditions. The utility model realizes thickening of the suspension, and particularly makes targeted improvement on the following problems: in the material distribution process of the centrifugal machine, because the flow speed of the suspension is too high and no speed reduction measure is provided between the material distribution disc and the material pushing disc, most of materials can go to the upper part of the screen, a solid filter cake is difficult to form at the bottom of the screen, the waste of the space at the bottom of the screen is caused, and the separation efficiency is difficult to further improve. The material distribution structure realizes material distribution from the bottom of the screen by adjusting the flow speed of the suspension and changing the flow direction of the suspension to a certain degree, thereby avoiding wasting the space at the bottom and promoting the further improvement of the separation efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provides a uniform material distribution structure of a piston pusher centrifuge, which adopts the technical scheme that:

a uniform material distribution structure of a piston pusher centrifuge comprises a primary rotary drum, a secondary rotary drum and a feeding pipe, wherein a screen is arranged on the inner surface of the primary rotary drum, a material distribution disc is arranged at an outlet at the tail part of the feeding pipe, the material distribution disc is of an annular disc-shaped structure, and the feeding pipe penetrates through a central through hole of the material distribution disc; the front end of the outlet of the feeding pipe is provided with a material pushing disc which is of an annular disc-shaped structure, the periphery of the material pushing disc is connected with the screen through a material pushing sheet, and the material distribution disc is connected with the material pushing disc through a material distribution disc bolt; and a check ring is arranged on one side surface of the material distribution disc opposite to the material pushing disc.

Furthermore, the two material distribution discs 7) are arranged, the check ring is arranged on the material distribution disc close to the material pushing disc, and the spacer sleeve is arranged between the two material distribution discs.

Furthermore, the spacer bush is sleeved on the cloth disc bolt, the front end of the cloth disc bolt is divided into a two-section structure with a large-diameter section and a small-diameter section, the diameter of the small-diameter section is smaller than that of the large-diameter section, and the cloth disc and the spacer bush are sleeved on the small-diameter section of the cloth disc bolt and fastened through the cloth disc nut.

Furthermore, a gap is formed between the material distribution disc and the material pushing disc, and the gap is the length of the large-diameter section of the bolt of the material distribution disc.

Furthermore, the height of the side wall of the check ring is smaller than the length of the large-diameter section, and a gap is formed between the end face of the side wall of the check ring and the material pushing disc to form a material distribution channel.

Furthermore, a groove is formed in the center of one side face, back to the outlet of the feeding pipe, of the material pushing disc, and the material pushing disc forms a thin plate on the bottom face of the groove.

Furthermore, notches are formed in the periphery of the material pushing plate, the bottom surface of each notch is combined with the material pushing plate, the material pushing plates are fixedly connected with the material pushing plate through bolts, and one end of each material pushing plate is connected with the screen.

The utility model has the beneficial effects that:

1. in order to realize thickening of the suspension and solve the problem of dilution in the separation process of a centrifugal machine when the solid content is low, the front end of the feed inlet is provided with the material pushing disc which is matched with the material distribution disc at the tail end of the feed inlet, so that the suspension impacts the thin plate area of the material pushing disc and then diffuses towards two sides, and finally, solid-phase substances in the suspension impact on the screen under the driving of centrifugal force to form a solid filter cake, and liquid is discharged from the holes of the rotary drum, thereby achieving the purpose of increasing the solid content in the suspension. The central position of the material pushing disc is provided with the groove, so that a thin plate is formed in the middle of the material pushing disc, the thickness of the thin plate is smaller, the thin plate has better elasticity and toughness, the service life of the thin plate is longer when the thin plate is impacted by suspension, and the thin plate can better buffer the suspension.

2. Suspension liquid is impacted on the screen cloth under the drive of centrifugal force from the clearance of pushing away material dish and cloth dish, because the inconvenient undersize of adjusting in the clearance between pushing away material dish and the cloth dish (can lead to the velocity of flow of suspension to sharply increase), but too big clearance leads to suspension liquid can't offer the cloth from the bottom of screen cloth again, causes the waste of screen cloth bottom space. Therefore, the retainer ring is arranged on the outer side of the material distribution plate to inhibit the suspension from directly flowing to the upper part of the screen, so that the material is arranged from the bottom of the screen in an auxiliary manner, the space at the bottom of the screen is prevented from being wasted, the separation efficiency is favorably ensured, and the productivity of a machine is further promoted.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the installation of the retainer ring of the present invention.

Fig. 3 is a schematic view of the installation of the cloth tray of the present invention.

FIG. 4 is a schematic flow diagram of a suspension of the present invention.

The text labels in the figures are represented as: 1. a secondary drum; 2. a first-stage rotary drum; 3. a drum hole; 4. screening a screen; 5. a retainer ring; 6. a feed pipe; 7. a material distribution disc; 8. a material distribution disc bolt; 9. pushing the material tray; 10. a groove; 11. a thin plate; 12. pushing the material sheet; 13. pushing a tray bolt; 14. a material distribution channel; 15. a large diameter section; 16. a spacer sleeve; 17. a cloth disc nut; 18. a small diameter section.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

Fig. 1 is a schematic structural diagram of a uniform material distribution structure of a piston pusher centrifuge according to a preferred embodiment of the present invention.

A uniform material distribution structure of a piston pusher centrifuge comprises a primary rotary drum 2, a secondary rotary drum 1 and a feeding pipe 6, wherein a screen 4 is arranged on the inner surface of the primary rotary drum 2, a material distribution disc 7 is arranged at an outlet at the tail part of the feeding pipe 6, the material distribution disc 7 is of an annular disc-shaped structure, and the feeding pipe 6 penetrates through a central through hole of the material distribution disc 7; a material pushing disc 9 is arranged at the front end of an outlet of the feeding pipe 6, the material pushing disc 9 is of an annular disc-shaped structure, the periphery of the material pushing disc 9 is connected with the screen 1 through a material pushing sheet 12, and the material distribution disc 7 is connected with the material pushing disc 9 through a material distribution disc bolt 8; and a retainer ring 5 is arranged on one side surface of the material distribution disc 7 opposite to the material pushing disc 9.

Preferably, referring to fig. 1 and 3, the two material distribution discs 7 are provided, the retainer ring 5 is provided on the material distribution disc 7 close to the material pushing disc 9, and the spacer 16 is provided between the two material distribution discs 7.

Preferably, as shown in fig. 1 and fig. 3, the spacer 16 is sleeved on the material distribution disc bolt 8, the front end of the material distribution disc bolt 8 is divided into a two-section structure of a large-diameter section 15 and a small-diameter section 18, the diameter of the small-diameter section 18 is smaller than that of the large-diameter section 15, and the material distribution disc 7 and the spacer 16 are both sleeved on the small-diameter section 18 of the material distribution disc bolt 8 and are fastened by a material distribution disc nut 17.

Preferably, as shown in fig. 1 and fig. 3, a gap is formed between the material distribution disc 7 and the material pushing disc 9, and the gap is the length of the large-diameter section 15 of the material distribution disc bolt 8. Through the material distribution disc bolt 8 that provides the 15 length of different major diameter sections, can realize the adjustment in the clearance of material distribution disc 7 and material pushing plate 9 to satisfy the demand under the different operating modes of different materials.

Preferably, as shown in fig. 1 and fig. 2, the height of the side wall of the retainer ring 5 is smaller than the length of the large-diameter section 15, and a gap is formed between the end surface of the side wall of the retainer ring 5 and the pushing plate 9 to form a material distribution channel 14.

Preferably, as shown in fig. 1 and fig. 2, a groove 10 is formed in a central position of a side surface of the material pushing tray 9 facing away from the outlet of the material feeding pipe 6, and the material pushing tray 9 forms a thin plate 11 on a bottom surface of the groove 10. The thin plate 11 structure arranged on the material pushing disc 9 is also used for further enhancing the elasticity and toughness of the material pushing disc 9, and is beneficial to improving the shock resistance and prolonging the service life.

Preferably, as shown in fig. 1 and fig. 2, notches are formed in the periphery of the pushing tray 9, the bottom surfaces of the notches are combined with the pushing sheet 12, the pushing sheet 12 is fastened and connected with the pushing tray 9 through bolts, and one end of the pushing sheet 12 is connected with the screen 4.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the utility model using its spirit and scope, as defined by the claims, should be considered as protection.

Claims

1. A piston pusher centrifuge uniform material distribution structure comprises a primary rotary drum (2), a secondary rotary drum (1) and a feeding pipe (6), and is characterized in that a screen (4) is arranged on the inner surface of the primary rotary drum (2), a material distribution disc (7) is arranged at the outlet of the tail part of the feeding pipe (6), the material distribution disc (7) is of an annular disc-shaped structure, and the feeding pipe (6) penetrates through a central through hole of the material distribution disc (7); a material pushing disc (9) is arranged at the front end of an outlet of the feeding pipe (6), the material pushing disc (9) is of an annular disc-shaped structure, the periphery of the material pushing disc (9) is connected with the screen (4) through a material pushing sheet (12), and the material distribution disc (7) is connected with the material pushing disc (9) through a material distribution disc bolt (8); and a check ring (5) is arranged on one side surface of the material distribution disc (7) opposite to the material pushing disc (9).

2. The uniform material distribution structure of the piston pusher centrifuge as claimed in claim 1, characterized in that the material distribution disk (7) is provided with two blocks, the retainer ring (5) is arranged on the material distribution disk (7) close to the material pushing disk (9), and a spacer bush (16) is arranged between the two material distribution disks (7).

3. The piston pusher centrifuge uniform material distribution structure according to claim 2, wherein the spacer bush (16) is sleeved on the material distribution disc bolt (8), the front end of the material distribution disc bolt (8) is divided into a two-segment structure of a large-diameter segment (15) and a small-diameter segment (18), the diameter of the small-diameter segment (18) is smaller than that of the large-diameter segment (15), and the material distribution disc (7) and the spacer bush (16) are sleeved on the small-diameter segment (18) of the material distribution disc bolt (8) and fastened through a material distribution disc nut (17).

4. The uniform material distribution structure of the piston pusher centrifuge as claimed in claim 3, characterized in that a gap is formed between the material distribution disk (7) and the material pushing disk (9), and the gap is the length of the large diameter section (15) of the material distribution disk bolt (8).

5. The uniform material distribution structure of the piston pusher centrifuge as claimed in claim 3, characterized in that the height of the side wall of the retainer ring (5) is less than the length of the large diameter section (15), and a gap is formed between the end face of the side wall of the retainer ring (5) and the pusher disk (9) to form a material distribution channel (14).

6. The structure of the piston pusher centrifuge for distributing the material evenly according to claim 1, wherein a groove (10) is formed in the center of one side surface of the pusher disk (9) opposite to the outlet of the feed pipe (6), and the pusher disk (9) forms a thin plate (11) on the bottom surface of the groove (10).

7. The uniform material distribution structure of the piston pusher centrifuge as claimed in claim 1, wherein notches are formed around the pusher disk (9), the bottom surface of each notch is combined with the pusher plate (12), the pusher plate (12) is fastened and connected with the pusher disk (9) through bolts, and one end of the pusher plate (12) is connected with the screen (4).