CN210656648U

CN210656648U - Drainage squeezing roller of belt filter press

Info

Publication number: CN210656648U
Application number: CN201921398133.3U
Authority: CN
Inventors: 贾立志; 惠文
Original assignee: Beijing Kechen Environmental Protection Co ltd
Current assignee: Beijing Kechen Environmental Protection Co ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-06-02
Anticipated expiration: 2029-08-27

Abstract

The utility model relates to a roller is squeezed in drainage of belt filter press relates to sewage treatment device field, and it includes roll body and a plurality of channel-section steel, and is a plurality of the channel-section steel spaced set up in on the roll body global to parallel with the axis of roll body, the channel-section steel including be used for the extrusion filtering belt the roof of trough and connect in the both sides on roll body surface, a plurality of wash ports have been seted up on the roof of trough of channel-section steel. The utility model discloses the effect of the moisture that can rapid discharge filter belt filtered out has.

Description

Drainage squeezing roller of belt filter press

Technical Field

The utility model belongs to the technical field of sewage treatment device's technique and specifically relates to a drainage of belt filter press squeezes roller is related to.

Background

The filter press is a mechanical device which applies a certain pressure to an object by utilizing a special filter medium to dialyze liquid, and is a common solid-liquid separation device. The belt filter press is one of filter presses, is widely applied to sludge dewatering treatment in the industries of municipal domestic sewage, textile printing and dyeing, electroplating, papermaking, leather, brewing, food processing, coal washing, petrochemical industry, chemistry, metallurgy, pharmacy, ceramics and the like, and is also suitable for solid separation or liquid leaching procedures of industrial production.

The belt press filter mainly comprises a driving device, a frame, a press roller system, a filter belt tensioning device, a filter belt cleaning device, a discharging device, a pneumatic control system, an electrical control system and the like. The filter belt is a main component of the belt type press filter and comprises an upper filter belt and a lower filter belt, the separation process of the solid phase and the liquid phase of the sludge is uniform, the upper filter belt and the lower filter belt are used as filter media, and the filter belts bypass a press roller system under the action of the tension of the upper filter belt and the lower filter belt to obtain the press force required by removing the water of the materials. The squeezing roller system consists of rollers with diameters arranged in sequence from large to small, sludge is clamped by an upper filter belt and a lower filter belt, and when the sludge sequentially passes through the squeezing roller, a pressure gradient from small to large is formed under the tension action of the filter belts, so that the squeezing force applied to the sludge in the dehydration process is continuously increased, and the water in the sludge is gradually removed.

However, the press roller of the traditional filter press is of a cylindrical structure with a smooth surface, and the contact between the press roller and the filter belt is surface contact, so that the separation of mud and water is not smooth, and the water outlet efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a drainage of belt filter press squeezes roller, the moisture that the discharge filter belt that can be rapid filtered out.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a roller is squeezed in drainage of belt filter press, includes roll body and a plurality of channel-section steel, a plurality of the channel-section steel interval set up in on the roll body is global to parallel with the axis of roll body, the channel-section steel including be used for the extrusion filtering band the roof of a trough and connect in roll body surface's two trough sides, a plurality of wash ports have been seted up on the roof of a trough of channel-section steel.

By adopting the technical scheme, when the belt filter press works, the drainage squeezing roller rotates and squeezes the filter belt to press out moisture in the sludge, so that solid residues in the sludge are separated; when the drainage press roll rotates to extrude the filter belt, moisture in the sludge close to the roll body can enter a gap between adjacent channel steels and then is discharged from two ends of the gap, so that the drainage effect of the drainage press roll is improved; secondly, partial water in the sludge can enter a cavity between the channel steel and the roller body from a water drainage hole of the channel steel and then is discharged from two ends of the channel steel, so that the drainage effect of the drainage press roller is further improved; in addition; the channel-section steel has the edges and corners, and its edges and corners part is great to the pressure that the filter belt produced when the extrusion filter belt to frictional force between channel-section steel and the filter belt is also great, thereby makes and is difficult to skid between channel-section steel and the filter belt.

The utility model discloses further set up to: the inner sides of two groove sides of the channel steel are respectively provided with an inner water guide strip, the two inner water guide strips are of a structure with two thin ends and a thick middle, and the two inner water guide strips enable the inner side of the channel steel to form a water filtering cavity with a narrow middle and two wide ends.

Through adopting above-mentioned technical scheme, when the channel-section steel rotated to the side of roll body along with the roll body, water guide strip position one in two in the channel-section steel was high one low, and the hydroenergy that gets into the drainage chamber from the wash port can discharge to the both ends of channel-section steel along the interior water guide strip that is located the below, and interior water guide strip can accelerate the discharge rate of the water of drainage chamber.

The utility model discloses further set up to: the outer sides of the two groove sides of the channel steel are respectively provided with an outer water guide strip with the same structure as the local inner water guide strip, and the outer water guide strip enables a water filtering groove with a narrow middle part and wide two ends to be formed between the two adjacent channel steels.

Through adopting above-mentioned technical scheme, when the channel-section steel rotated to the side of roll body along with the roll body, two outer water guide strip positions one high one low between the adjacent channel-section steel, and the hydroenergy of pressing into in the drainage tank from mud can be discharged to the both ends in drainage tank along the outer water guide strip that is located the below, and outer water guide strip can accelerate the discharge rate of the water in the drainage tank.

The utility model discloses further set up to: the inner water guide strip is of an isosceles obtuse triangular prism-shaped structure, the two side faces of the inner water guide strip adjacent to the obtuse angle edge form the side face of the water filtering cavity, and the side face of the inner water guide strip not adjacent to the obtuse angle edge is connected with the groove edge of the channel steel.

The utility model discloses further set up to: one side of the inner water guide strip is a plane connected with the groove edge of the channel steel, and one side of the inner water guide strip, which deviates from the groove edge, is an arc surface.

The utility model discloses further set up to: the groove edge is connected with the inner water guide strip and the outer water guide strip which are connected to the inner side and the outer side of the groove edge in an integrated structure.

By adopting the technical scheme, because the two ends of the inner water guide strip and the outer water guide strip are thinner, the independent processing is not convenient, and the same groove edge, the inner water guide strip and the outer water guide strip on the inner side and the outer side are arranged into an integrated structure, so that the integrated water guide strip can be conveniently processed.

The utility model discloses further set up to: and anti-skid grains are arranged on the side surface of the groove top plate of the channel steel, which deviates from the roller body.

Through adopting above-mentioned technical scheme, the frictional force between channel-section steel and the filter belt can be increased to the antiskid line to make and be difficult to skid between channel-section steel and the filter belt.

To sum up, the utility model discloses a beneficial technological effect does:

1. moisture in the sludge close to the roller body can enter a gap between adjacent channel steels and then is discharged from two ends of the gap, so that the drainage effect of the drainage press roller is improved; secondly, partial water in the sludge can enter a cavity between the channel steel and the roller body from a water drainage hole of the channel steel and then is discharged from two ends of the channel steel, so that the drainage effect of the drainage press roller is further improved; in addition; the channel steel is provided with edges, and the edges generate larger pressure on the filter belt when the filter belt is extruded, so that the friction force between the channel steel and the filter belt is larger, and the channel steel and the filter belt are not easy to slip;

2. the water entering the water filtering cavity from the water discharging hole can be discharged to the two ends of the channel steel along the inner water guide strip positioned below the water discharging hole, and the inner water guide strip can accelerate the discharging speed of the water in the water filtering cavity;

3. the water pressed into the water filtering groove can be discharged to the two ends of the water filtering groove along the outer water guide strips positioned below, and the outer water guide strips can accelerate the discharge speed of the water in the water filtering groove.

Drawings

Fig. 1 is a schematic view showing the overall structure of a drainage press roll of a belt filter press.

Fig. 2 is a schematic sectional view of a drainage press roll of a belt filter press.

Fig. 3 is a schematic structural diagram of the inner water guide strip and the outer water guide strip of the drainage press roll of the belt filter press when the inner water guide strip and the outer water guide strip are in an isosceles obtuse triangular prism shape.

Fig. 4 is a schematic structural view of the inner and outer water guide strips of the drainage press roll of the belt filter press when one side is an arc surface.

Reference numerals: 1. a roller body; 2. channel steel; 21. a trough top plate; 22. a groove edge; 3. A drain hole; 4. an inner water guide strip; 41. a blunt edge; 42. a cambered surface; 5. an outer water guide strip; 6. a water filtering cavity; 7. a water filtering tank; 8. anti-skid lines; 9. an upper filter belt; 10. and (4) a lower filter belt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a roller is squeezed in drainage of belt filter press, including roll body 1 and a plurality of channel-section steel 2, roll body 1 is the cylindric structure that the level set up, and it is rich self axis rotation, and a plurality of channel-section steels 2 parallel with roll body 1's axis to on being fixed in roll body 1 global of mutual spaced, the spacing distance between per two adjacent channel-section steels 2 is the same. The filter belt of pressure filter includes filter belt 9 and lower filter belt 10, goes up filter belt 9 and lower filter belt 10 and winds under the effect of tensioning force in roll body 1 and butt on a plurality of channel-section steel 2, and channel-section steel 2 can extrude the moisture of centre gripping in the mud between last filter belt 9 and lower filter belt 10.

Referring to fig. 1 and 2, channel-section steel 2 includes roof 21 and two trough sides 22, two trough sides 22 are fixed connection in the both sides of roof 21 respectively, two trough sides 22 fixed connection are on roll body 1 global, roof 21 deviates from roll body 1's side can with last filter belt 9 and filter belt 10 looks butt down, when filter belt 9 and lower filter belt 10 were gone up in channel-section steel 2 extrusion, some moisture in the mud can enter into the space between the adjacent channel-section steel 2, then discharge from the both ends in this space. A plurality of drain holes 3 are formed in the groove top plate 21 of the channel steel 2, and partial moisture in the sludge can enter the channel steel 2 through the drain holes 3 and then is discharged from two ends of the channel steel 2.

Referring to fig. 3 and 4, two trough edges 22 of channel-section steel 2 are provided with interior water guide strip 4 respectively in the inboard, two interior water guide strip 4 are the thin structure of middle thickness in both ends, the top surface of two interior water guide strip 4 is connected in roof 21, the bottom surface is connected in roll body 1, its one side is connected with channel-section steel 2's trough edge 22, it is outstanding gradually from both ends to the centre towards the side in the channel-section steel 2, its both ends extend to channel-section steel 2's both ends, two interior water guide strip 4 make 2 inboard formation of channel-section steel in the middle of narrow both ends wide drainage chamber 6. The specific shape of the inner water guide strip 4 may be an isosceles obtuse triangular prism with a blunt edge 41 facing the water filtering cavity 6, or a strip structure with one side being an arc surface 42 protruding towards the water filtering cavity 6 and the other side being a plane.

The two groove edges 22 of the channel steel 2 are respectively provided with the outer water guide strips 5 at the outer sides, the structures of the two outer water guide strips 5 are the same as the structures of the two inner water guide strips 4, and the outer water guide strips 5 enable the water filtering grooves 7 with narrow middle parts and wide two ends to be formed between the adjacent channel steel 2.

The groove edge 22 and the inner water guide strip 4 and the outer water guide strip 5 connected to the inner side and the outer side of the groove edge are of an integral structure, so that the processing is convenient.

Referring to fig. 1 and 2, further, the groove top plate 21 of the channel steel 2 is provided with anti-slip threads 8 on the side surface facing away from the roller body 1, i.e. the side surface abutting against the upper filter belt 9 or the lower filter belt 10, so that the phenomenon of slipping can be prevented.

The implementation principle of the embodiment is as follows: when the belt filter press works, the drainage squeezing roller rotates and squeezes the upper filter belt 9 and the upper filter belt 9 to press out moisture in the sludge, so that solid residues in the sludge are separated; when the drainage squeezing roller rotatably squeezes the upper filter belt 9 and the upper filter belt 9, the water of the part of the sludge close to the roller body 1 can enter the water filtering grooves 7 between the adjacent channel steels 2 and then is quickly discharged from two ends of the water filtering grooves 7 along the outer water guide strips 5, so that the drainage effect is improved; secondly, part of water in the sludge can enter a water filtering tank 7 in the channel steel 2 from a water drainage hole 3 of the channel steel 2 and then is quickly drained from two ends of the channel steel 2, so that the drainage effect is further improved; further, the groove top plate 21 of the channel 2 generates a large pressure when pressing the upper filter 9 and the upper filter 9, and is not easily slipped.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a roller is squeezed in drainage of belt filter press which characterized in that: the filter belt rolling device comprises a roller body (1) and a plurality of channel steel (2), wherein the channel steel (2) are arranged on the circumferential surface of the roller body (1) at intervals and are parallel to the axis of the roller body (1), the channel steel (2) comprises a channel top plate (21) used for extruding a filter belt and two channel sides (22) connected to the surface of the roller body (1), and a plurality of drain holes (3) are formed in the channel top plate (21) of the channel steel (2).

2. The draining press roll of a belt filter press according to claim 1, characterized in that: the inner sides of two groove edges (22) of the channel steel (2) are respectively provided with inner water guide strips (4), the two inner water guide strips (4) are of a structure with two thin ends and a thick middle part, and the two inner water guide strips (4) enable the inner sides of the channel steel (2) to form a water filtering cavity (6) with a narrow middle part and two wide ends.

3. The draining press roll of a belt filter press according to claim 2, characterized in that: the outer sides of two groove edges (22) of the channel steel (2) are respectively provided with an outer water guide strip (5) which has the same structure as the local inner water guide strip (4), and the outer water guide strip (5) enables a water filtering groove (7) which is narrow in the middle and wide in two ends to be formed between the two adjacent channel steels (2).

4. The draining press roll of a belt filter press according to claim 2, characterized in that: the inner water guide strip (4) is of an isosceles obtuse angle triangular prism structure, the two side faces of the inner water guide strip, which are adjacent to the blunt edge (41), form the side faces of the water filtering cavity (6), and the side faces, which are not adjacent to the blunt edge (41), are connected with the groove edge (22) of the channel steel (2).

5. The draining press roll of a belt filter press according to claim 2, characterized in that: one side of the inner water guide strip (4) is a plane connected with the groove edge (22) of the channel steel (2), and one side of the inner water guide strip departing from the groove edge (22) is an arc surface (42).

6. The draining press roll of a belt filter press according to claim 3, characterized in that: the groove edge (22) and the inner water guide strip (4) and the outer water guide strip (5) which are connected to the inner side and the outer side of the groove edge are of an integrated structure.

7. The draining press roll of a belt filter press according to any one of claims 1 to 6, wherein: and anti-skid grains (8) are arranged on the side surface of the groove top plate (21) of the channel steel (2) departing from the roller body (1).