CN209968661U

CN209968661U - Straight section rotary drum part of horizontal screw centrifuge

Info

Publication number: CN209968661U
Application number: CN201920792465.3U
Authority: CN
Inventors: 杨彪; 刘步实
Original assignee: Chengdu High Separation Heart Machine Co Ltd
Current assignee: Chengdu High Separation Heart Machine Co Ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-01-21
Anticipated expiration: 2029-05-29

Abstract

The utility model relates to a spiral shell centrifuge's for sleeping in straight section rotary drum part, including straight section rotary drum body, straight section rotary drum body inner wall right side section has the inoxidizing coating that the one deck comprises a plurality of pasters through the bonding agent subsides, the paster surface is smooth mirror surface. Compared with the traditional rotary drum, the scheme utilizes the ceramic composite material adhesive with abrasion resistance and corrosion resistance to paste a layer of ceramic plate on the inner wall of the rotary drum, thereby avoiding the direct abrasion of the rotary drum from being converted into the abrasion of the ceramic plate, and prolonging the service life of the rotary drum.

Description

Straight section rotary drum part of horizontal screw centrifuge

Technical Field

The utility model relates to a spiral shell centrifuge field crouches, concretely relates to spiral shell centrifuge's for sleeping in straight section rotary drum part.

Background

The horizontal screw centrifuge is a settling equipment with horizontal screw discharging and continuous operation. The working principle of the centrifugal machine is as follows: the rotary drum and the screw rotate at a high speed in the same direction at a certain differential speed, the materials are continuously introduced into a feeding bin of the screw pusher through a feeding pipe, enter the rotary drum after being accelerated, and heavy solid matters are deposited on the wall of the rotary drum to form a slag layer under the action of a centrifugal force field. The conveying screw continuously pushes deposited solid-phase substances to a conical section of the rotary drum and discharges the solid-phase substances out of the machine through a slag discharge port. The lighter liquid phase forms an inner layer liquid ring, continuously overflows from the rotary drum through an overflow port at the large end of the rotary drum, and is discharged out of the machine through a liquid discharge port. The machine can continuously feed, separate and discharge materials under full-speed operation.

When the rotary drum and the spiral inner cylinder rotate at a high speed in a centrifugal process, relatively small speed difference exists between the rotary drum and the spiral inner cylinder, the spiral material pusher continuously pushes materials, slag materials have great friction and relative movement with the inner wall of the rotary drum, the inner wall of the rotary drum is abraded for a long time, and the service life of the rotary drum is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a spiral shell centrifuge's for sleeping in straight section rotary drum part, through introducing the inoxidizing coating that the one deck surface is the smooth surface at the rotary drum inner wall to the friction between improvement reduction rotary drum and the sediment avoids the rotary drum inner wall directly to take place relative friction with the sediment, thereby prolongs the life of rotary drum.

The purpose of the utility model is realized through the following technical scheme:

a straight section rotary drum component of a horizontal decanter centrifuge comprises a straight section rotary drum body, wherein a protective layer consisting of a plurality of patches is adhered to the right section of the inner wall of the straight section rotary drum body through an adhesive, and the surfaces of the patches are smooth mirror surfaces.

In order to solve the serious problem of rotary drum wearing and tearing in this scheme, paste a smooth paster in layer surface at the rotary drum inner wall, avoided the rotary drum direct and slag charge friction, and the friction between smooth paster and the slag charge is less for paster wearing and tearing reduce, even take place wearing and tearing only need shovel off the paster paste again can, thereby make the unlimited extension of rotary drum life.

Furthermore, the patches comprise regular polygon patches and rectangular patches, the rectangular patches are axially pasted along the inner wall of the drum body to form a plurality of wear-resistant strips which are uniformly distributed, and the regular polygon patches are pasted between the wear-resistant strips.

Further, the regular polygon patch is 3mm thick, and the rectangular patch is 6mm thick.

In this scheme, owing to introduced smooth paster for the rotary drum is at the rotation in-process slag charge mix inhomogeneous or deposit and not rotate along with the rotary drum at the rotary drum bottom, for this scheme sets up many wear strips of compriseing the rectangle paster along the axial in the rotary drum, and its thickness is greater than regular polygon paster, forms the arch and is used for driving the slag charge and rotates along with the rotary drum.

Further, the area of a single regular polygon patch is 2cm²-5cm². The smaller the patch area is, the higher the stability is, but the difficulty of patch is increased, 2cm²-5cm²Belongs to a more reasonable selection.

Furthermore, regular polygon paster is regular hexagon paster, forms the gap between the adjacent regular polygon paster after pasting, and the filler adhesive fills in the gap, according to the area design of paster, designs it for regular hexagon can guarantee that every length of side has certain length for form stronger adhesive force between every paster, prevent that it from droing.

And a plurality of metal wear-resistant strips are welded on the left section of the inner wall of the straight section rotary drum body, and the metal wear-resistant strips are in butt joint with the wear-resistant strips formed by the rectangular patches and are flush with the wear-resistant strips.

Furthermore, the patch is a ceramic patch, and the ceramic sheet has the advantages of low cost and high temperature resistance and corrosion resistance.

Furthermore, the adhesive is a ceramic composite material which belongs to 100% cured material and is used for protecting the metal surface and preventing physical abrasion and chemical corrosion, so that the scheme uses the ceramic composite material not only for the adhesive, but also enables the adhesive to be used as an abrasion-resistant protective layer and has double effects.

Furthermore, a plurality of screw holes are reserved on two end faces of the straight section rotary drum body, and a large-end shaft neck and a conical section rotary drum are respectively installed at two ends of the straight section rotary drum body through the screw holes.

The utility model has the advantages that: compared with the traditional rotary drum, the scheme utilizes the ceramic composite material with abrasion resistance and corrosion resistance as the adhesive to paste a layer of ceramic plate on the inner wall of the rotary drum, thereby avoiding the direct abrasion of the rotary drum from being converted into the abrasion of the ceramic plate, and prolonging the service life of the rotary drum to a certain extent.

Drawings

FIG. 1 is a schematic view of a straight segment drum;

FIG. 2 is a schematic end view of a straight drum;

fig. 3 is a cross-sectional view of the straight drum in the axial direction.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

As shown in fig. 1-3, a straight-section drum component of a horizontal decanter centrifuge comprises a straight-section drum body 1, wherein a protective layer consisting of a plurality of patches 2 is adhered to the right section of the inner wall of the straight-section drum body 1 through an adhesive, and the surfaces of the patches 2 are smooth mirror surfaces. The patch 2 includes two types, one is a regular polygon patch 21 and the other is a rectangular patch 22, wherein the thickness of the regular polygon patch 21 is 3mm, the thickness of the rectangular patch 22 is 6mm, and the patch is pasted. Firstly, a layer of adhesive is coated on the inner wall of a rotary drum body 1, then a plurality of rectangular patches 22 are uniformly pasted along the axial direction, namely the rectangular patches 22 are used as the body to make boundaries, regular polygon patches 21 are pasted in each partition, and after all patches 2 are pasted, the thickness of the rectangular patches 22 is larger than that of the regular polygon patches 21, so that the rectangular patches 22 protrude out of the surface where the regular polygon patches 21 are located, and a protruding strip is formed to play a role of a wear-resistant strip.

The technical key points are that gaps of 1-2mm are reserved between the adjacent patches 2, and adhesives are filled between the gaps so as to improve the stability of the patches.

That is to say that rectangular paster 22 divides the right section of the inner wall of straight section rotary drum body 1 into a plurality of rectangular areas in the scheme, regular polygon paster 21 is pasted in the rectangular areas, and the area of single regular polygon paster 21 is 2cm²-5cm²In this embodiment, the regular polygonal patches 21 are regular hexagonal patches, the adhering arrangement is as shown in fig. 3, after the adhering process, a gap is formed between adjacent regular polygonal patches 21, the gap is filled with adhesive, and then the surface residues are scraped offThe excess adhesive is left so that the filler between the gaps is flush with the surface of the regular polygonal patch 21.

In this embodiment, a plurality of metal wear strips 3 are uniformly arranged on the inner wall of the left section of the straight-section drum body 1 along the axial direction, the metal wear strips 3 are parallel to each other, the metal wear strips 3 are in butt joint with the wear strips formed by the rectangular patches 22 and are kept flush, wherein the metal wear strips 3 are provided with through holes 4, and the metal wear strips are welded on the inner wall of the left section of the straight-section drum body 1 through the through holes 4.

Finally, the material of the patch 2 in the scheme is ceramic patch, one surface of the ceramic patch is glaze, the smooth characteristic of the ceramic patch can be met, the other surface of the ceramic patch is frosted, the bonding strength can be improved, the adhesive is ceramic composite material, a plurality of screw holes 5 are reserved on two end surfaces of the straight section rotary drum body 1, the big end rotary drum and the conical section rotary drum are respectively installed on two ends of the straight section rotary drum body 1 through the screw holes 5, and the adhesive used in the scheme is Tianshan TS818 wear-resistant ceramic piece epoxy structural adhesive.

The foregoing is merely a preferred embodiment of the invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to limit the invention to other embodiments, and to various other combinations, modifications, and environments and may be modified within the scope of the inventive concept as described herein by the teachings or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The straight section rotary drum component of the horizontal decanter centrifuge comprises a straight section rotary drum body (1), and is characterized in that a protective layer consisting of a plurality of patches (2) is adhered to the right section of the inner wall of the straight section rotary drum body (1) through an adhesive, and the surfaces of the patches (2) are smooth mirror surfaces.

2. The straight-section drum component of the decanter centrifuge as claimed in claim 1, wherein said patches (2) comprise regular polygon patches (21) and rectangular patches (22), said rectangular patches (22) are axially adhered along the inner wall of the drum body (1) to form a plurality of wear strips uniformly distributed, and said regular polygon patches (21) are adhered between the wear strips.

3. A straight-section drum component of a decanter centrifuge according to claim 2, wherein said regular polygonal patches (21) are 3mm thick and said rectangular patches (22) are 6mm thick.

4. A straight-section drum component of a decanter centrifuge according to claim 3, characterised in that the area of a single said regular polygonal patch (21) is 2cm²-5cm²。

5. The straight-section rotary drum component of the horizontal decanter centrifuge as claimed in claim 4, wherein the regular polygon patches (21) are regular hexagon patches, and after the pasting, gaps are formed between the adjacent regular polygon patches (21), and the gaps are filled with the adhesive.

6. A horizontal decanter centrifuge straight drum component according to claim 5, characterized in that a plurality of metal wear strips (3) are welded on the left section of the inner wall of the straight drum body (1), and the metal wear strips (3) are flush with the wear strips formed by the rectangular patches (22) in butt joint.

7. A straight-section drum component of a decanter centrifuge according to any of claims 1-6, characterised in that said patches (2) are ceramic patches.

8. The straight bowl component of a decanter centrifuge as recited in claim 7, wherein said adhesive is Tianshan TS818 abrasion resistant ceramic chip epoxy structural glue.

9. The straight-section drum component of the horizontal decanter centrifuge as claimed in claim 1, characterized in that a plurality of screw holes (5) are reserved on both end faces of the straight-section drum body (1), and a large-end journal and a conical-section drum are respectively installed on both ends of the straight-section drum body (1) through the screw holes (5).