Rotary drum sealing structure of folding belt rotary drum filter

Abstract

The utility model belongs to the technical field of rotary drum filters, and particularly relates to a rotary drum sealing structure of a folding belt rotary drum filter, which comprises a rotary drum, a mounting block is fixedly connected on the outer circle surface of the rotary drum close to the end surface of the rotary drum, a groove is arranged in the mounting block, the mounting block and the groove are both of a circular ring structure, and a sealing strip is arranged in the groove. A groove is formed in the rotating drum, the sealing strip surrounds the groove for a circle, the sealing strip comprises a connecting part, the connecting part is clamped in the groove, a sealing part is integrally and fixedly connected to the side, away from the rotating drum, of the connecting part, a sealing face is arranged on the side, away from the connecting part, of the sealing part, and the section of the sealing face is of an arc-shaped structure. And the sealing effect is better.

Description

TECHNICAL FIELD

[0001] The utility model belongs to drum filter technical field, especially relate to a kind of drum sealing structure of belt folding drum filter. BACKGROUND

[0002] Drum filter is a kind of equipment under the action of vacuum filtering suspension, widely used in pharmaceutical, food and other industries, its main body is a horizontal rotating drum, the outer surface of drum is porous screen plate, drum is covered with filter cloth, to prevent suspension from not passing through filter cloth and entering drum from both ends, affect the filtering effect of equipment, the outer surface of drum is usually installed sealing strip at the position close to both ends, but the cross section of existing sealing strip is simple rectangular structure, part of suspension still enters drum from the gap between filter cloth and sealing strip, affect the filtering effect of equipment. SUMMARY

[0003] The utility model provides a kind of drum sealing structure of belt folding drum filter, which is reasonable in structure, firmly clamped and good in sealing effect.

[0004] To solve the above technical problems, the utility model provides the following technical scheme:

[0005] A kind of drum sealing structure of belt folding drum filter, including drum, the outer surface of drum is integrally connected with mounting block at the position close to its end face, recess is formed in mounting block, mounting block and recess are annular structure, sealing strip is arranged in recess, sealing strip surrounds a week along recess, sealing strip includes connecting portion, connecting portion is clamped in recess, sealing portion is integrally connected to the side of connecting portion away from drum, sealing surface is arranged on the side of sealing portion away from connecting portion, and the cross-sectional shape of sealing surface is arc structure.

[0006] The utility model further optimizes the above technical scheme as follows:

[0007] A plurality of sealing teeth are integrally connected in sequence on sealing surface.

[0008] Further optimization: the included angle α is arranged between the two sides of connecting portion, and the value of included angle α is 3°±0.5°.

[0009] Further optimization: at least one inner hole is arranged in connecting portion.

[0010] Further optimization: the cross-sectional shape of inner hole is circular structure.

[0011] Further optimization: two guide portions are symmetrically arranged at one end of connecting portion away from sealing portion.

[0012] Further optimization: the cross-sectional shape of guide portion is circular arc structure.

[0013] The utility model discloses a reasonable design has guaranteed that the sealing strip joint is more firm, and the sealing effect is better, through the circular arc structure structure design of sealing surface, has increased the actual contact area of filter cloth and sealing strip, effectively avoided the interval of the both ends of filter cloth and sealing strip from the suspension into the rotary drum, improved the filtration effect of equipment, a plurality of sealing teeth are sequentially arranged on the sealing surface, thereby forming a plurality of high and low undulations between filter cloth and sealing strip, and the sealing effect of sealing strip is further improved, the setting of inner hole and guide portion makes sealing strip can be more easily jointed into the recess, and with recess joint is more firm.

[0014] The utility model is further illustrated below in combination with the drawings and examples. DRAWINGS

[0015] Fig. 1 It is the whole structure schematic diagram of the utility model embodiment;

[0016] Fig. 2 It is the structure schematic diagram of sealing strip in the utility model embodiment;

[0017] Fig. 3 It is the structure schematic diagram of sealing tooth in the utility model embodiment.

[0018] In the drawing: 1-rotary drum;2-mounting block;3-groove;4-sealing strip;401-connection part;4011-inner hole;4012-guide portion;402-sealing part;4021-sealing surface;4022-sealing tooth. PREFERRED EMBODIMENT

[0019] As Figs. 1-3 Shown, a kind of rotary drum sealing structure of folding belt rotary drum filter, including rotary drum 1, rotary drum 1 outer circular surface is close to its end surface position place and is fixedly connected with mounting block 2, mounting block 2 is in and is equipped with groove 3, mounting block 2 and groove 3 are all circular ring structure, sealing strip 4 is arranged in groove 3, sealing strip 4 surrounds a week along groove 3, sealing strip 4 includes connection part 401, connection part 401 is jointed in groove 3, sealing part 402 is integrally connected on the side of connection part 401 away from rotary drum 1, sealing surface 4021 is arranged on the side of sealing part 402 away from connection part 401, and the cross-sectional shape of sealing surface 4021 is arc structure.

[0020] In this way, when filter works, filter cloth is in close contact with sealing surface 4021, through the circular arc structure structure design of sealing surface 4021, the actual contact area of filter cloth and sealing strip 4 is increased, effectively avoid the interval of the both ends of filter cloth and sealing strip 4 from the suspension into the rotary drum, improve the filtration effect of equipment.

[0021] A plurality of sealing teeth 4022 are integrally connected in sequence on the sealing surface 4021, so as to form a plurality of high and low obstacles between the filter cloth and the sealing strip 4, and further improve the sealing effect of the sealing strip 4.

[0022] An included angle α is arranged between the two sides of the connecting part 401, and the value of the included angle α is 3°±0.5°.

[0023] In this way, the connecting part 401 can be more easily installed into the groove 3, and the connecting part 401 is more firmly clamped with the groove 3.

[0024] The connecting part 401 is provided with an inner hole 4011.

[0025] In this way, when the connecting part 401 is installed into the groove 3, the connecting part 401 is shrunk and deformed, and is more easily pressed into the groove 3; when the connecting part 401 enters the groove 3, the inner hole 4011 has a tendency to restore the original shape, so that the connecting part 401 is more firmly clamped with the groove 3.

[0026] In addition to the embodiment, the number of the inner hole 4011 can also be two or more.

[0027] The cross-sectional shape of the inner hole 4011 is a circular structure.

[0028] The end of the connecting part 401 away from the sealing part 402 is provided with two guide parts 4012, and the two guide parts 4012 are symmetrically arranged, so as to more conveniently install the connecting part 401 into the groove 3.

[0029] The cross-sectional shape of the guide part 4012 is a circular arc structure.

[0030] The material of the sealing strip 4 is preferably selected to be ethylene-propylene-diene rubber, so as to increase the acid and alkali resistance and wear resistance of the sealing strip 4.

[0031] For those skilled in the art, according to the teaching of the present application, the changes, modifications, replacements and variations of the embodiments without departing from the principles and spirits of the present application still fall within the protection scope of the present application.

Claims

1. A drum seal structure of a folding belt drum filter comprising a drum (1), characterized in that: The outer surface of the rotary drum (1) is fixed with a mounting block (2) near the end surface, the mounting block (2) is provided with a groove (3), the mounting block (2) and the groove (3) are annular structures, the groove (3) is provided with a sealing strip (4), the sealing strip (4) surrounds the groove (3), the sealing strip (4) comprises a connecting part (401), the connecting part (401) is clamped in the groove (3), the connecting part (401) is integrally connected with a sealing part (402) away from the rotary drum (1), the sealing part (402) is provided with a sealing surface (4021) away from the connecting part (401), and the cross-sectional shape of the sealing surface (4021) is arc-shaped.

2. A seal for a drum of a belt folding drum filter according to claim 1, characterized in that: A plurality of sealing teeth (4022) are integrally connected to the sealing surface (4021) in sequence.

3. The seal structure of a rotary drum of a belt folding rotary drum filter according to claim 1, characterized in that: An included angle α is arranged between the two side surfaces of the connecting part (401), and the value of the included angle α is 3°±0.5°.

4. The seal structure of a rotary drum of a belt folding rotary drum filter according to claim 1, characterized in that: At least one inner hole (4011) is arranged in the connecting part (401).

5. A seal for a drum of a belt folding drum filter according to claim 4, characterized in that: The cross-sectional shape of the inner hole (4011) is circular.

6. The seal structure for a rotating drum of a belt folding rotating drum filter according to claim 1, characterized in that: Two guide parts (4012) are symmetrically arranged at one end of the connecting part (401) away from the sealing part (402).

7. A seal for a drum of a belt folding drum filter according to claim 6, characterized in that: The cross-sectional shape of the guide part (4012) is circular arc-shaped.

Images