CN209666358U - Pressafiner - Google Patents

Abstract

The utility model relates to one kind for by liquid from suspension, the pressafiner especially separated in mud or fibrous suspension, the pressafiner has the worm shaft (2) with worm thread (3) rotated in housing (1), wherein, suspension is squeezed from entrance (5) to outlet (6) by the annular gap (4) formed between housing (1) and worm shaft (2), it is equipped with leakage fluid dram in the region of annular gap (4) and there is the plug area (7) for being used to form the plug material being made of the suspension being concentrated before outlet (6).The mode of the continuation processing performance of improvement material is herein, the region of fracture (9) of adjacent annular on plug area (7), in the region of fracture (9) of the annular, the internal diameter of annular gap (4) expands along conveying direction (10) and multiple resolution elements (8) in the region of fracture (9) protrude into the annular gap (4) with plug material.

Description

Pressafiner

Technical field

The utility model relates to a kind of spiral shells for separating liquid from suspension, especially mud or fibrous suspension Spinning crusher has the worm shaft with worm thread rotated in housing, wherein suspension passes through in housing and worm screw The annular gap formed between axis is squeezed from entrance to outlet, leakage fluid dram is equipped in the region of annular gap and in outlet It is preceding to there is the plug area for being used to form the plug material being made of the suspension being concentrated.

Background technique

This dehydration equipment is known for a long time, and is successfully especially applied when fibrous suspension is concentrated In the machine for manufacturing fibrous cloth width.

Herein general driven auger conveyor be disposed in substantially concentric ground cylindricality or taper, punching sleeve-board or The inside of analog.The suspension being radially added is dehydrated under the collective effect of blocking device, wherein water can pass through punching Sleeve-board or the like discharge, and residue is blocked.

When the width of annular gap is reduced by the respective shapes between the inlet of housing and/or worm shaft When, improve the concentration and dehydration of residue.

Due to biggish power, component correspondingly size design herein, this keeps component heavy and expensive.

However, material be dehydrated and highly concentrated herein often goes wrong when continuing with.

Utility model content

Therefore, technical problem to be solved in the utility model is to improve material to continue with ability without will affect The dehydration efficiency of pressafiner.

The technical problem is the adjacent region of fracture for having annular in plug area in such a way that the utility model solves, In the region of fracture, the internal diameter of annular gap expands along conveying direction and multiple resolution elements in the region of fracture protrude into has In the annular gap of plug material.

This leads to the cutting of plug material and loose by simple mode, thus plug material do not have to intermediate treatment can be It is continued in subsequent processing units.

It continues with unit advantageously to be formed by heating device, especially heating spiral rod herein, the material in heating device It is heated by steam.Then disperser can be abutted on the heating device.

In order to obtain simple structure design, resolution element is formed by tooth and/or preferably along the listrium that conveying direction extends.

Furthermore in order to as uniform as possible loose, multiple resolution elements should along annular gap circumferential direction preferably with identical Distance is disposed adjacently.

In order to form the region of fracture advantageously, breaking ring is fixed on worm shaft in the region of fracture, pass through the fracture Ring expands the internal diameter of annular gap along conveying direction.This allows resolution element to be simply secured on breaking ring again.

For structure design that is simple and can carrying, housing should have leakage fluid dram and be preferably designed to cylindrical screen.

Furthermore, it is possible to which strengthening the mode of dehydration is, the width of annular gap is preferably continuous between entrance and plug area Ground reduces.For this purpose, housing and/or worm shaft can be designed conically.

In order to assist the concentration in plug area also advantageously, in plug area, listrium, bolt or the like is admittedly Determine on the coat.These elements prevent plug material and worm shaft rotates together and prevent material to be drained off along worm shaft into The conveying of one step.But plug material is also broken into fiber simultaneously.

Correspondingly advantageously, listrium is at least axially extended with one-component.

Detailed description of the invention

The utility model is further described below according to one embodiment.It is shown in the accompanying drawings:

Fig. 1: be by the cross-sectional view of pressafiner cutting and

Fig. 2: being the breaking ring 15 with resolution element 8.

Specific embodiment

The pressafiner is used to such as need the spiral shell to the fiber suspension fluid dewatering formed by old paper typically at least in part Spinning crusher is for manufacturing fibrous cloth width.

It is concentrically arranged in cylindricality housing 1 and the worm shaft 2 of rotatable bearing for this purpose, pressafiner has, wherein Suspension passes through the annular gap 4 from least one formed between housing 1 and worm shaft 2 by the worm thread 3 of worm shaft 2 Entrance 5 is squeezed to outlet 6.

The concentration that suspension occurred when both having passed through gravity when by annular gap 4 further through conveying is dehydrated.Here, water The sieve pore for flowing through housing 1 enters the dewatering box with water outlet 11.The dewatering box collects the water that become trapped in and herein for example It is integrated into the shell 12 for surrounding housing 1.

In order to strengthen dehydration, worm shaft 2 is conically designed and is arranged, so that the width of annular gap 4 is along conveying direction 9 Until plug area 7 is gradually reduced.

After annular gap 4, the suspension of concentration reaches in the region of fracture 9 with outlet 6.

In the region of fracture 9, the thickness of annular gap 4 increases, therefore plug material can be made to be broken and via exporting 6 rows Out.

The fracture of plug material is realized by the expansion along conveying direction 10 of the internal diameter of annular gap 4.For further powder Broken material, multiple resolution elements 8 in the region of fracture 9 protrude into the annular gap 4 with plug material.

Worm shaft 2 is driven by motor 13, wherein speed changer, belt or the like can connect in worm shaft 2 and motor 13 Between.

Different from Fig. 1, pressafiner can also be obliquely or vertically arranged.

In plug area 7 existing before outlet, the plug material being made of the suspension being concentrated is formed.It helps It is that worm shaft 2 does not have worm thread 3 in plug area 7 and therefore cannot convey material in the mode for forming plug material.

In order to strengthen the concentration in plug area 7, consolidate in the plug area along the listrium 14 that conveying direction 10 extends Determine on the coat.The listrium 14 hinder annular gap 4 in material continue convey and rotate.

For avoid as lack worm thread 3 and caused by plug area 7 blocking, the width of annular gap 4 is in plug The inside in region 7 is constant.

In this embodiment importantly, in the region of fracture 9, the resolution element 8 of multiple tooth patterns is protruded into plug In the annular gap 4 of material.Plug material is cut by these tooth cuttings or at least regional area by these teeth when it is delivered to outlet 6 It is weak, so that the clast for the plug material being present at outlet 6 is possessed having a size of the size allows in not additional processing In the case of for example continued in smaller heating spiral rod.

Therefore, it can for example apply steam to the material in heating spiral rod, the material is then inputted into disperser.

For the design of simple, stable and very effective structure, by the multiple resolution elements 8 of Fig. 2 along annular gap 4 It is circumferential to be disposed adjacently and be fixed at the same distance on the breaking ring 15 of the region of fracture 9.

Therefore the plug material of annular elapses by breaking ring 15 and is cut into ring segment by the resolution element of tooth form 8 herein.

Claims (15)

1. a kind of pressafiner for separating liquid from suspension, the pressafiner has in housing (1) The worm shaft (2) with worm thread (3) of rotation, wherein suspension between housing (1) and worm shaft (2) by forming Annular gap (4) squeeze from entrance (5) to outlet (6), equipped with leakage fluid dram and exporting the region of annular gap (4) in (6) there is the plug area (7) for being used to form the plug material being made of the suspension being concentrated before, which is characterized in that in plug The adjacent region of fracture (9) for having annular on region (7), the internal diameter of annular gap (4) is along conveying side in the region of fracture (9) Expand to (10), and multiple resolution elements (8) in the region of fracture (9) protrude into the annular gap (4) with plug material.

2. pressafiner according to claim 1, which is characterized in that the suspension is mud or fibrous suspension.

3. pressafiner according to claim 1, which is characterized in that resolution element (8) is formed by tooth and/or listrium.

4. pressafiner according to claim 1, which is characterized in that resolution element (8) is by tooth and/or along conveying direction (10) listrium extended is formed.

5. pressafiner according to claim 1, which is characterized in that multiple resolution elements (8) are along annular gap (4) Circumferentially it is disposed adjacently to one another.

6. pressafiner according to claim 5, which is characterized in that multiple resolution elements (8) are along annular gap (4) It is circumferential to be disposed adjacently to one another at the same distance.

7. pressafiner according to claim 1, which is characterized in that set on the worm shaft (2) in the region of fracture (9) There are breaking ring (15).

8. pressafiner according to claim 7, which is characterized in that resolution element (8) is fixed on the breaking ring (15) on.

9. pressafiner according to claim 1, which is characterized in that in the plug area (7), listrium (14), Bolt is fixed on housing (1).

10. pressafiner according to claim 1, which is characterized in that the housing (1) has leakage fluid dram.

11. pressafiner according to claim 10, which is characterized in that the housing (1) is designed to cylindrical screen.

12. pressafiner according to claim 1, which is characterized in that the width of annular gap (4) in entrance (5) and Plug area reduces between (7).

13. pressafiner according to claim 12, which is characterized in that the width of annular gap (4) in entrance (5) and Plug area continuously reduces between (7).

14. pressafiner according to claim 1, which is characterized in that the pressafiner is arranged in heating device Before.

15. pressafiner according to claim 14, which is characterized in that the heating device is heating spiral rod.