CN210545724U

CN210545724U - Pre-concentration mechanism of piston pusher centrifuge

Info

Publication number: CN210545724U
Application number: CN201921365781.9U
Authority: CN
Inventors: 戴源江; 彭勇
Original assignee: Hunan Xiangda Centrifuge Manufacturing Co Ltd
Current assignee: Hunan Xiangda Centrifuge Manufacturing Co Ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-05-19
Anticipated expiration: 2029-08-22

Abstract

The utility model provides a piston pushes away material centrifuge and constructs in advance. The piston pushes away material centrifuge and advances concentration mechanism and sets up in single-stage or multistage piston and pushes away material centrifuge, and centrifuge includes single rotary drum or many rotary drums, pushes away charging tray, inlet pipe, piston pushes away material centrifuge and advances concentration mechanism and includes concentrated drum, honeycomb duct in advance, concentrated drum is frustum shape structure, and the top of frustum, end two sides are the opening, the top surface opening with the inlet pipe intercommunication, the bottom surface opening with it keeps certain clearance to push away the charging tray to be fixed in through many spliced poles push away the charging tray. The utility model provides a piston pushes away material centrifuge and has concentrated mechanism in advance solved prior art's piston and has pushed away the technical problem that material centrifuge can't deal with the big unstable condition of solid content change.

Description

Pre-concentration mechanism of piston pusher centrifuge

Technical Field

The utility model relates to a piston pushes away material centrifuge field, concretely relates to piston pushes away material centrifuge preconcentration mechanism.

Background

The single-stage and multi-stage piston pusher centrifuges are continuously operated high-efficiency filter centrifuges which can continuously feed, wash, separate and discharge. Because the equipment has large output and low water content of filter cakes, the equipment is widely applied to the chemical industry, the pharmaceutical industry and the food industry. The automatic centrifugal separation equipment requires that the solid content in the suspension liquid must be more than or equal to 40 percent in the production process, and the equipment is relatively stable, otherwise, the equipment can generate vibration, dilution and the like. However, in the actual production process, the production process of some users is unstable, and the unstable situation of large solid content change in the suspension occurs, so that the centrifuge cannot normally and stably operate.

SUMMERY OF THE UTILITY MODEL

The technical problem of the big unstable condition of solid content change can't be dealt with to the piston pusher centrifuge who solves prior art, the utility model provides a piston pusher centrifuge preconcentration mechanism who solves above-mentioned problem.

A pre-concentration mechanism of a piston pusher centrifuge is arranged on a single-stage or multi-stage piston pusher centrifuge, the centrifuge comprises a single rotary drum or a plurality of rotary drums, a pusher disc and a feeding pipe, the pre-concentration mechanism of the piston pusher centrifuge comprises a concentration drum and a flow guide pipe, the concentration drum is in a frustum structure, the top surface and the bottom surface of the frustum are both provided with openings, the opening on the top surface is communicated with the feeding pipe, the opening on the bottom surface keeps a certain gap with the pusher disc, and the pre-concentration mechanism is fixed on the pusher disc through a plurality of connecting columns; the concentrating drum is of a double-layer structure, an inner layer screen mesh and an outer layer solid outer wall are arranged on the concentrating drum, and the feeding pipe penetrates into the inner layer at an opening on the top surface; the inner layer and the outer layer are connected at an opening on the bottom surface, and a plurality of flow guide pipes are connected at the connection part; and the guide pipe penetrates through the material pushing disc, the single rotary drum or the multiple rotary drums and reaches a liquid outlet of the centrifugal machine.

In a preferred embodiment of the piston pusher centrifuge preconcentration mechanism provided in the present invention, the top surface opening of the concentration drum is in clearance fit with the outer wall of the feed pipe.

The utility model provides a piston pushes away material centrifuge preconcentration mechanism in a preferred embodiment, still includes the bulk cargo dish, the bulk cargo dish be solid disc, with the coaxial setting of concentration drum, its edge through many landing legs with inlayer fixed connection.

Compared with the prior art, the utility model provides a piston pushes away material centrifuge preconcentration mechanism and is equipped with the concentrated drum carries out normal centrifugal processing again after concentrating in advance to the supplied materials, has avoided the unstable situation such as vibration, thin draw of appearing in time centrifuge of concentration.

Drawings

Fig. 1 is a partial sectional view of a preconcentration mechanism of a piston pusher centrifuge provided in the present invention, which is disposed in a two-stage piston pusher centrifuge;

fig. 2 is a partially enlarged view of fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Please refer to fig. 1 and fig. 2, which are a partial sectional view and a partial enlarged view of the preconcentration mechanism 1 of the piston-pushing centrifuge according to the present invention disposed in the two-stage piston-pushing centrifuge 2.

The double-stage piston pusher centrifuge 2 comprises a casing 21 for collecting mother liquor and filter residues, an outer rotating drum 22, an inner rotating drum 23 and a pusher disc 24 which are arranged in the casing 21, a power mechanism 25 which is arranged outside the casing 21 and connected with components such as a rotating drum, and a feeding pipe 26 which penetrates through the pusher disc 24 at the other end. The double-stage piston pusher centrifuge is a common device in the prior art, and the specific structure is not described herein.

The pre-concentration mechanism 1 of the piston pusher centrifuge comprises a concentration drum 11, a guide pipe 12 and a bulk material disc 13. The concentrating drum 11 is of a frustum-shaped structure, the top end and the bottom end of the concentrating drum are both provided with openings, and the side wall of the concentrating drum is a double-layer wall and comprises an inner layer 31 of screen and an outer layer 32 of solid outer wall.

A circle of connecting edge 33 is arranged at the opening at the top end, and the inner layer 31 and the outer layer 32 are both connected with the connecting edge, so that the interlayer is closed at the opening at the top end. The connecting edge 33 is in clearance fit with the outer wall of the feed tube 26, avoiding direct friction of the inner layer 31 with it.

A ring of mounting edge 34 is provided at the bottom end opening and a plurality of connecting rods 35 are provided to fix the thickening drum 11 to the material pushing plate 24. The mounting edge 34 closes the bottom opening of the interlayer and is connected with a plurality of flow guide pipes 12 leading into the interlayer.

The draft tube 12 extends to a position close to the inner rotary drum 23, bends by 90 degrees and then sequentially penetrates through the material pushing disc 24, the inner rotary drum 23, the outer rotary drum 22 and the mother liquor pipe 27.

The bulk material dish 13 is a solid disc, set up in the dead ahead of the export of inlet pipe 26, with the condensation drum 11 is concentric, and through many landing legs with inlayer 31 is connected.

In specific implementation, the power mechanism 25 drives the outer rotary drum 22, the inner rotary drum 23 and the material pushing disc 24 to synchronously rotate, and drives the inner rotary drum 23 to reciprocate. The material pushing disc 24 drives the concentration drum 11 and the material scattering disc 13 to synchronously rotate.

The material enters from the feeding pipe 26, impacts with the bulk material disk 13 and is dispersed to be contacted with the inner layer 31. The separated mother liquor enters the interlayer of the concentration drum 11, passes through the guide pipe 12 to the mother liquor pipe 27, and then is discharged together with the subsequently separated mother liquor.

The filter residue is thrown to the material pushing disc 24 and then thrown to the inner rotary drum 23 for centrifugation. The inner drum 23 is pushed to the outer drum 22 to be centrifuged again when moving to the left. When the inner rotary drum 23 moves to the right, the inner rotary drum is pushed to a slag discharge port 28 to be discharged.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes made by the present specification can be changed, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. The utility model provides a piston pushes away material centrifuge preconcentration mechanism, sets up in single-stage or multistage piston and pushes away material centrifuge, and centrifuge includes single rotary drum or many rotary drums, pushes away charging tray, inlet pipe, its characterized in that: the device comprises a concentration drum and a flow guide pipe, wherein the concentration drum is of a frustum structure, the top and bottom surfaces of a frustum are provided with openings, the opening on the top surface is communicated with a feeding pipe, and the opening on the bottom surface keeps a certain gap with a material pushing disc and is fixed on the material pushing disc through a plurality of connecting columns;

the concentrating drum is of a double-layer structure, an inner layer screen mesh and an outer layer solid outer wall are arranged on the concentrating drum, and the feeding pipe penetrates into the inner layer at an opening on the top surface; the inner layer and the outer layer are connected at an opening on the bottom surface, and a plurality of flow guide pipes are connected at the connection part; and the guide pipe penetrates through the material pushing disc, the single rotary drum or the multiple rotary drums and reaches a liquid outlet of the centrifugal machine.

2. The piston pusher centrifuge preconcentration mechanism of claim 1, wherein: the top surface opening part of concentrated drum, with the outer wall clearance fit of inlet pipe.

3. The piston pusher centrifuge preconcentration mechanism according to claim 1 or 2, wherein: still include the bulk cargo dish, the bulk cargo dish be solid disc, with the coaxial setting of concentration drum, its edge through many landing legs with inlayer fixed connection.