Filter cloth pressing device of horizontal scraper centrifugal machine

Abstract

The filter cloth pressing device comprises a rotary drum and a liquid blocking plate arranged at an end opening of the rotary drum, a first vertical plate and a second vertical plate are fixedly arranged at an opening of the liquid blocking plate, the first vertical plate and the second vertical plate are connected through a connecting plate, a groove body is formed between the first vertical plate and the second vertical plate, and the first vertical plate and the second vertical plate are connected through a connecting plate. A flexible fixing band is detachably arranged in the groove body, a first connecting part and a second connecting part which are matched with each other are respectively arranged at two ends of the flexible fixing band, a bending part which is bent outwards is arranged between the second connecting part and the flexible fixing band, and the second connecting part and the bending part are integrally formed. A mutual hooking structure is formed between the first connecting part and the second connecting part, the mutual hooking structure is tightly combined, the filter bag is arranged on the inner side surface of the pin roller, and the pin roller rotates to reduce the friction between the flexible belt and the filter cloth while the flexible fixing belt compresses the filter cloth, so that the service life of the filter cloth is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuge equipment, in particular to a filter cloth pressing device for a horizontal scraper centrifuge. Background Art

[0002] The horizontal scraper centrifuge is a horizontal, continuously operating, intermittently operated filtering centrifuge with a wide scraper for unloading. After the motor drives the drum to full speed, the material is introduced into the drum through the feed pipe. Under the action of centrifugal force, the liquid phase passes through the filter cloth and the filter holes in the drum wall and is discharged from the drum and discharged outside the machine through the discharge pipe.

[0003] The filter cloth in the centrifuge is usually laid flat on the inner wall of the drum, and the bag opening flange is laid on the liquid retaining plate at the upper end of the drum. Some liquid retaining plates are equipped with multiple fixing devices for fixing the bag opening of the filter bag. This fixing method is prone to tearing at the contact point between the filter cloth and the fixing device; some are tightened by using pressure bars, and the axial ends of the pressure bars are fixed by embedding into annular grooves on both sides of the drum. In actual use, the high-speed rotation of the drum will cause the filter bags to move left and right and fall, exacerbating the wear of the filter bags. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, a filter cloth pressing device for a horizontal scraper centrifuge is proposed to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the present invention is implemented through the following technical solutions:

[0006] A filter cloth pressing device for a horizontal scraper centrifuge comprises a rotary drum and a liquid blocking plate arranged at the drum port, wherein a vertical plate 1 and a vertical plate 2 are fixedly arranged at the opening of the liquid blocking plate, and the vertical plate 1 and the vertical plate 2 are connected by a connecting plate, and a trough body is formed between the vertical plate 1 and the vertical plate 2, and a flexible fixing belt is detachably provided in the trough body, and a matching first connecting part and a second connecting part are respectively provided at both ends of the flexible fixing belt, and a bending part bent outward is provided between the second connecting part and the flexible fixing belt, and the second connecting part and the bending part are integrally formed.

[0007] As a further technical solution of the present invention: a plurality of circular grooves are evenly spaced apart on one side of the flexible fixing belt, and cylindrical rollers are rotatably arranged in the grooves.

[0008] As a further technical solution of the present invention: the first connecting portion and the second connecting portion are both U-shaped.

[0009] As a further technical solution of the present invention: the first connecting part and the second connecting part have the same specifications.

[0010] As a further technical solution of the present invention: a placement cavity for placing the first connecting part and the second connecting part is provided on the liquid blocking plate.

[0011] Beneficial effects of the utility model:

[0012] The utility model has a detachable flexible fixing belt installed in the tank body. The two ends of the flexible fixing belt are respectively provided with a first connecting part and a second connecting part. The first connecting part and the second connecting part are both U-shaped. The U-shaped hook of the first connecting part is outward, and the U-shaped hook of the second connecting part is inward. The first connecting part and the second connecting part form an interlocking structure. The interlocking structure is tightly connected, so that the formed interlocking structure has better tensile strength. The bent part can support the interlocking structure, which can increase the tensile strength of the flexible fixing belt and make it less likely to break. Moreover, it is easy to buckle or open, and the filter cloth can be replaced by one person.

[0013] A plurality of circular grooves are evenly spaced on one side of the flexible fixing belt. A cylindrical roller is rotatably arranged in the groove. The roller can rotate in the groove. The inner side of the roller is a filter bag. While the flexible fixing belt presses the filter cloth, the rotation of the roller reduces the friction between the flexible belt and the filter cloth, thereby extending the service life of the filter cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the drum and the liquid blocking plate;

[0015] Figure 2 This is a cross-sectional view of the main structure of the utility model;

[0016] Figure 3 for Figure 2 A partial enlarged view of middle A;

[0017] Figure 4 This is a schematic diagram of the main structure after the flexible fixing belt is engaged;

[0018] Figure 5 This is a schematic diagram of the main structure after the flexible fixing belt is closed.

[0019] In the figure: 1-drum, 2-liquid blocking plate, 3-vertical plate 1, 4-vertical plate 2, 5-connecting plate, 6-trough body, 7-flexible fixing belt, 8-first connecting part, 9-second connecting part, 10-bending part, 11-groove, 12-roller, 13-placing cavity. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Reference Figure 1-5 A filter cloth pressing device for a horizontal scraper centrifuge comprises a rotary drum 1 and a liquid blocking plate 2 arranged at the port of the rotary drum 1. A vertical plate 1 3 and a vertical plate 2 4 are fixedly arranged at the opening of the liquid blocking plate 2. The vertical plate 1 3 and the vertical plate 2 4 are connected by a connecting plate 5. A trough body 6 is formed between the vertical plate 1 3 and the vertical plate 2 4. A flexible fixing belt 7 is detachably arranged in the trough body 6. The two ends of the flexible fixing belt 7 are respectively provided with a matching first connecting part 8 and a second connecting part 9. A bending part bent outward is provided between the second connecting part 9 and the flexible fixing belt 7. The bending portion 10, the second connecting portion 9, and the bending portion 10 are integrally formed. The first connecting portion 8 and the second connecting portion 9 are both U-shaped, with the U-shaped hook of the first connecting portion 8 pointing outward and the U-shaped hook of the second connecting portion 9 pointing inward. A hooked structure is formed between the first connecting portion 8 and the second connecting portion 9. The first connecting portion 8 and the second connecting portion 9 have the same specifications, so that the hooked structure is tightly combined, thereby making the formed hooked structure more tensile-resistant. The bending portion 10 can support the hooked structure, which can increase the tensile strength of the flexible fixing band 7 and make it less likely to break. A placement cavity 13 for placing the first connecting portion 8 and the second connecting portion 9 is provided on the liquid blocking plate 2, and the hooked structure is placed in the placement cavity 13.

[0022] The flexible fixing belt 7 has multiple circular grooves 11 evenly spaced apart on one side. Cylindrical rollers 12 are rotatably mounted within these grooves. The flexible fixing belt 7 is made of a flexible material, while the rollers 12 are made of a rigid material. Rollers 12 rotate within the grooves, and the inner side of rollers 12 is a filter bag. While the flexible fixing belt 7 compresses the filter cloth, the rotation of rollers 12 reduces friction with the filter cloth, thereby extending the service life of the filter cloth.

[0023] Specific implementation of the utility model:

[0024] The filter cloths are laid flat on the inner wall of the drum, and the bag opening flanges are laid on the liquid blocking plate openings at the upper end of the drum and bent into the trough body 6. Then the flexible fixing belt 7 is placed in the trough body 6, and the flexible fixing belt 7 is pressed against the filter cloth. A mutual hook is formed between the first connecting part 8 and the second connecting part 9, and the mutual hook structure is placed in the placement cavity 13. The inner side of the roller 12 is the filter bag. While the flexible fixing belt 7 presses the filter cloth, the roller 12 rotates to reduce the friction between the filter cloth and the filter cloth, thereby extending the service life of the filter cloth.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0026] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A filter cloth pressing device for a horizontal scraper centrifuge, comprising a rotary drum (1) and a liquid blocking plate (2) arranged at a port of the rotary drum (1), characterized in that: A vertical plate 1 (3) and a vertical plate 2 (4) are fixedly provided at the opening of the liquid blocking plate (2), the vertical plate 1 (3) and the vertical plate 2 (4) are connected by a connecting plate (5), a trough body (6) is formed between the vertical plate 1 (3) and the vertical plate 2 (4), a flexible fixing belt (7) is detachably provided in the trough body (6), a first connecting portion (8) and a second connecting portion (9) are provided at both ends of the flexible fixing belt (7), a bending portion (10) bent outward is provided between the second connecting portion (9) and the flexible fixing belt (7), and the second connecting portion (9) and the bending portion (10) are integrally formed.

2. The filter cloth pressing device for a horizontal scraper centrifuge according to claim 1, characterized in that: A plurality of circular grooves (11) are evenly spaced apart on one side of the flexible fixing belt (7), and cylindrical rollers (12) are rotatably arranged in the grooves (11).

3. The filter cloth pressing device for a horizontal scraper centrifuge according to claim 1, characterized in that: The first connecting portion (8) and the second connecting portion (9) are both U-shaped.

4. The filter cloth pressing device for a horizontal scraper centrifuge according to claim 1, characterized in that: The first connecting portion (8) and the second connecting portion (9) have the same specifications.

5. The filter cloth pressing device for a horizontal scraper centrifuge according to claim 1, characterized in that: The liquid blocking plate (2) is provided with a placement cavity (13) for placing the first connecting portion (8) and the second connecting portion (9).

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