CN217188277U - U-shaped corrugated filter plate assembly for rotary drum type filter - Google Patents

Abstract

The utility model discloses a U-shaped corrugated filter plate component for a rotary drum filter, which comprises a filter plate body, wherein the filter plate body is a plurality of U-shaped grooves connected end to end, the joints of the U-shaped grooves are connected by arc smooth transition and are corrugated integrally, the tank bottoms of partial U-shaped grooves at least at one end of the filter plate body are provided with filter plate openings, partial filter plate bodies at the filter plate openings are bent downwards and are also used as filter guide plates, at least one reinforcing support plate is fixedly connected between the filter plate body and the rotary drum, and filter plate installation devices are respectively arranged between the two ends of the filter plate body and a baffle plate; after the U-shaped grooves are combined, the filtering plate body is substantially formed into a U-shaped corrugated plate, compared with the prior art, the filtering area is increased, the filtering liquid flow speed is increased, the vacuum degree is more easily formed, and the surface solid dryness of the filtering net is larger; the openings of the filter plate are matched with the filter guide plate, so that the fluid resistance flowing through the openings is reduced, and part of liquid can be prevented from flowing backwards.

Description

U-shaped corrugated filter plate component for drum filter

Technical Field

The utility model relates to a solid-liquid separation equipment technical field especially relates to a drum filter is with U-shaped corrugate filter plate subassembly.

Background

The rotary drum filter is widely applied to the industries of chemical industry, environmental protection, papermaking and the like, and is used for realizing solid-liquid separation. It has different names in different industries, such as vacuum washer in paper and pulp industry and drum filter in chemical industry. The rotary drum type filter is provided with a filter plate for realizing solid-liquid separation on the outer surface of the rotary drum, and the filter plate is called a corrugated plate due to the shape similar to a corrugation, so that the flow rate of filtrate, the effective filtering area, the vacuum negative pressure value, the support stability of the filter screen and the like can be directly influenced.

The outside of a corrugated plate arranged on the outer arc surface of a rotary drum of the rotary drum type filter is coated with a layer of filter screen, and the functions of suction filtration, back flushing discharge, filter screen washing and the like can be completed when the rotary drum rotates for one circle. In order to realize the continuous operation of the drum, the cambered surface of the drum is uniformly divided into 20-40 unequal slender compartments by partition plates according to the specification and size, and independent filtering units which are not communicated with each other are arranged between each compartment. The corrugated plate and the filter screen are installed on the outer surface of each compartment, external liquid enters the compartments through the filter screen and the corrugated plates in sequence and then is discharged through the flow channel inside the rotary drum, and solid is blocked on the surface of the filter screen, so that the purpose of solid-liquid separation is finally achieved.

The rotary drum is every rotatory a week when normal operating condition, and the filter receives negative pressure imbibition and positive pressure wind to blow once promptly, and this kind of mode can directly influence the life of filter, and whether consequently the filter design is reasonable is one of the key factor that concerns filter self life and whole filtration efficiency. The filter plate structure commonly seen in domestic market at present is shown in fig. 12, 13 and 14, the filter plate structure 101 is an arc-shaped structure in the width direction, the cross-sectional shape in the length direction is a V-shaped wave structure 102, and a long hole 103 is punched at one end of the bottom of the V-shaped wave structure 102, so that filtrate flows out. Because the bottom long hole 103 of the V-shaped wavy structure 102 is directly punched, the corrugation with the shape is easy to break through practical use, particularly the strength of the punched position of the long hole is the lowest, and the service life of the filtering plate is low under special working environment of the filtering plate. In addition, the cross section area of the V-shaped wave structure is smaller, so that the flow velocity of the filtrate is reduced, the formation of the vacuum degree is influenced, the dryness of solid matters outside the filter screen is also influenced, and the wider the filter plate is, the larger the influence degree is.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a filter area grow is provided, and the filtration liquid velocity becomes fast, forms vacuum more easily to help reducing fluid resistance's for the rotary drum filter U-shaped corrugate filter plate subassembly.

In order to solve the technical problem, the technical scheme of the utility model is that: the U-shaped corrugated filter plate component for the rotary drum filter is arranged between two adjacent baffles on the surface of a rotary drum and comprises a filter plate body, wherein the filter plate body is a plurality of U-shaped grooves which are connected end to end, the joints of the U-shaped grooves are integrally corrugated after being connected by arc smooth transition, at least the part of one end of the filter plate body is provided with a filter plate opening at the bottom of the U-shaped groove, the part of the filter plate opening is bent downwards and is also used as a filter guide plate, at least one reinforcing support plate is fixedly connected between the filter plate body and the rotary drum, and filter plate mounting devices are respectively arranged between the two ends of the filter plate body and the baffles.

As the preferred technical scheme, the filter plate mounting device comprises a mounting support plate which is shaped like a Chinese character 'ji' and is arranged at the top end of the partition plate, a mounting pressure plate is attached to the outer side of the mounting support plate, the end part of the filter plate body is clamped between the mounting support plate and the mounting pressure plate, a sealing strip is arranged between one end of the filter plate body and the corresponding partition plate, and the sealing strip is pressed between the mounting support plate and the mounting pressure plate.

As a preferable technical scheme, mounting holes which are matched with each other are respectively arranged through the mounting support plate and the mounting pressure plate.

As the preferred technical scheme, two ends of the filter plate body are respectively provided with a pressing plate concave platform for supporting the installation pressing plate.

As an improvement to the technical scheme, the filter plate openings are formed in the bottoms of the U-shaped grooves at the two ends of the filter plate body, and the two ends of the filter plate body are oppositely arranged in the flow guide direction of the filter flow guide plate.

Due to the adoption of the technical scheme, the U-shaped corrugated filter plate component for the drum filter is arranged between two adjacent partition plates on the surface of the drum filter and comprises a filter plate body, wherein the filter plate body is a plurality of U-shaped grooves which are connected end to end, the joint of each U-shaped groove is connected by arc smooth transition and is corrugated integrally, at least one part of the bottom of each U-shaped groove at one end of the filter plate body is provided with a filter plate opening, part of the filter plate body at the filter plate opening is bent downwards and also serves as a filter guide plate, at least one reinforcing support plate is fixedly connected between the filter plate body and the drum, and filter plate mounting devices are arranged between two ends of the filter plate body and the partition plates respectively; the utility model discloses following beneficial effect has: the U-shaped corrugated plates are formed substantially after the U-shaped grooves on the filter plate body are combined, compared with the V-shaped filter plate body under the conditions of the same height, the same width and the like in the prior art, the filtering area of the U-shaped corrugated plates is greatly increased, the flow rate of filtrate is increased, the vacuum degree is more easily formed, the surface solid dryness of the filter screen outside the filter plate body is larger, and the smoothness of each part of the U-shaped corrugated plates is larger, so that the resistance of fluid during filtering is reduced; the filter plate opening and the cooperation of filtering the guide plate have reduced the fluid resistance of passing through here, have further accelerated its velocity of flow, can also prevent partial liquid refluence simultaneously.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

fig. 1 is a schematic view of an installation state of an embodiment of the present invention;

fig. 2 is a side view of an installation state of an embodiment of the present invention;

FIG. 3 is a schematic end view of a filter plate body according to an embodiment of the present invention;

FIG. 4 is a partial top view of a filter plate body according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view taken along the line C-C in FIG. 4;

FIG. 6 is an enlarged view of the structure at I in FIG. 5;

FIG. 7 is a schematic view of another arrangement of a filtration baffle according to an embodiment of the present invention;

FIG. 8 is an enlarged view of the structure at II in FIG. 7;

FIG. 9 is a schematic cross-sectional view taken along line D-D of FIG. 4;

FIG. 10 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 11 is an enlarged schematic view of the structure at B in FIG. 2;

FIG. 12 is a schematic view of a prior art structure;

FIG. 13 is a partial top view of the prior art;

FIG. 14 is a schematic cross-sectional view taken along line E-E in FIG. 13;

in the figure: 1-rotating the drum; 2-a separator; 3-bearing seat; 4-a filter plate body; 5-a U-shaped groove; 6-opening of the filter plate; 7-a filtration baffle; 8-reinforcing the supporting plate; 9-mounting a support plate; 10, installing a pressure plate; 11-a sealing strip; 12-platen concave; 101-filter plate construction; 102-a V-shaped wave structure; 103-long hole.

Detailed Description

The invention is further explained below with reference to the drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention have been described by way of illustration only. Needless to say, a person skilled in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

As shown in figures 1 and 2, the U-shaped corrugated filter plate component for the rotary drum filter is arranged and installed on the rotary drum filter for realizing solid-liquid separation. The drum filter comprises a rotary drum 1, a partition plate 2, a filter screen, a bearing seat 3 and other components, wherein the rotary drum 1 is a core component, the bearing seat 3 is respectively installed at two ends of the rotary drum 1, one end of the rotary drum 1 is a transmission end and used for being connected with a motor and a speed reducer, and the other end of the rotary drum 1 is a liquid outlet end and used for conveying separated liquid outwards. The partition plates 2 are uniformly distributed on the surface of the rotary drum 1 and are used for supporting the filter plate assembly in the embodiment. When in use, the filter plate assembly supports the filter screen to be immersed in a medium, filtrate enters the interior of the drum 1 from the surface of the drum and flows out through the vacuum suction filtration function, and solid matters are remained on the surface of the filter screen, so that solid-liquid separation is realized.

As shown in fig. 2, 3, 4, 5 and 6, the present embodiment is installed between two adjacent partition boards 2 on the surface of the rotating drum 1, and forms an independent compartment by cooperating with the two partition boards 2. Taking a drum filter with an effective filtering area of 35 square meters as an example, the diameter of the rotating drum 1 is 3000 millimeters, the length of the rotating drum 1 is 3800 millimeters, twenty-six partition plates 2 are arranged on the drum surface of the rotating drum 1, the drum surface of the rotating drum 1 is uniformly divided into twenty-six independent compartments, and each compartment is provided with one filtering plate component, wherein the total of twenty-six filtering plate components are arranged. Each filter plate assembly had a width of 342 mm and a length of 3720 mm.

This embodiment specifically includes filter body 4, filter body 4 is a plurality of end to end's U-shaped groove 5, and each the junction of U-shaped groove 5 is the corrugate by arc smooth transition connection back whole, promptly the terminal surface of filter body 4 is U-shaped corrugate plate body structure, has changed in the traditional structure the V-arrangement corrugate plate body structure of filter body 4. Through the improvement, under the condition of the same height and width, the sectional area of the U-shaped corrugated plate body structure is larger than that of the V-shaped corrugated plate body structure. Taking the height and width of both as 10 mm as an example, the cross-sectional area of the U-shaped corrugated plate structure is 54.1 square mm, and the cross-sectional area of the V-shaped corrugated plate structure is 44.3 mm, which shows that the cross-sectional area of the U-shaped corrugated plate structure is increased by 22%. The filter plate body has the advantages that the sectional area of the filter plate body is increased, the flow speed of filtrate is increased, the vacuum degree is easily formed, the dryness of the solid outside the filter screen is increased, the surface smoothness of the U-shaped corrugated plate structure is larger than that of the V-shaped corrugated plate structure, and the resistance of the fluid is reduced to a certain degree. The filter plate body 4 is formed by carbon steel or stainless steel sheets through cold bending and pressing by means of a special forming die, the U-shaped corrugations are transversely arranged, the length of the U-shaped corrugations can be freely selected according to actual use conditions, and the U-shaped corrugations are flexibly arranged.

As shown in fig. 5, 6 and 9, at least a part of the U-shaped groove 5 at one end of the filter plate body 4 has a filter plate opening 6 at the bottom of the groove, and a part of the filter plate body 4 at the filter plate opening 6 bends downward and also serves as a filter guide plate 7, so that the filter guide plate 7 is formed to be an arc-shaped structure based on the body structure of the U-shaped groove 5, thereby reducing the fluid resistance flowing through the position, facilitating the acceleration of the flow velocity of the fluid, and simultaneously having the function of preventing part of the liquid from flowing backwards. As shown in fig. 7 and 8, in another arrangement of the filter deflector 7, only the arrangement direction is different, and the function and effect are the same as the arrangement manner. And the filter plate opening 6 and the filter baffle 7 are provided only on the U-shaped groove 5 near one end of the filter plate body 4 in this embodiment.

The filter plate opening 6 is arranged at the bottom of the U-shaped groove 5 at the two ends of the filter plate body 4, and the two ends of the filter plate body 4 are also used as the opposite arrangement of the flow guide directions of the filter flow guide plate 7. The filtrate outlet of each compartment on the drum 1 is generally arranged at one end, and the larger the filtering area is, the longer the drum 1 is, the longer the residence time of the filtrate in the compartment becomes, which easily causes the non-uniform dryness of the filter material outside the filter screen. For this reason, the large-sized drum 1 needs to arrange the filtrate outlet of the compartment in the middle, and therefore, the directions of the filter deflectors 7 on the filter plate bodies 4 are made to be symmetrical with each other, and the arc directions are all arranged towards the filtrate outlet. I.e. the direction of the filter deflector 7 on each compartment, half to the left and half to the right, is left-right symmetrically arranged.

As shown in fig. 2 and 10, at least one reinforcing support plate 8 is fixedly connected between the filter plate body 4 and the rotary drum 1, one end of the reinforcing support plate 8 is fixedly welded on the surface of the filter plate body 4, and the other end is fixedly welded on the drum surface of the rotary drum 1, so as to improve the installation strength of the filter plate body 4, enable the filter plate body to bear the pressure during negative pressure liquid suction and positive pressure wind blowing for a long time, and guarantee the service life of the filter plate body to the maximum extent.

As shown in fig. 2 and 11, filter plate mounting devices are respectively disposed between two ends of the filter plate body 4 and the partition plate 2, for mounting and fixing the filter plate body 4. Specifically, the filter installation device is including locating the how font erection bracing board 9 on 2 tops of baffle, the laminating of erection bracing board 9's the outside has installation clamp plate 10, 4 tip clamps of filter body in erection bracing board 9 with between the installation clamp plate 10, the one end of filter body 4 with correspond be equipped with sealing strip 11 between the baffle 2, just sealing strip 11 pressure equipment in erection bracing board 9 with between the installation clamp plate 10. And two ends of the filter plate body 4 are respectively provided with a pressing plate concave table 12 for supporting the mounting pressing plate 10. When the installation, the both ends of filter body 4 are laminated respectively in both sides on the erection bracing board 9, can run through the erection bracing board 9 with the installation clamp plate 10 sets up the mounting hole that the cooperation was used respectively, utilize installation clamp plate 10 with the cooperation of erection bracing board 9, with the help of modes such as fixing bolt or welding, will filter body 4 installation fixed can. The sealing strips 11 seal one side of the filter plate body 4, and a deformation space is reserved on the other side of the filter plate body 4 to adapt to the micro deformation generated when the filter plate body 4 is pressed. The press plate concave station 12 is used for bearing the installation press plate 10, so that the filtering surface of the rotary drum type filter is kept as flat as possible, and the disturbance of the filtrate during operation is avoided.

The utility model discloses make it form the buckled plate of U-shaped after each U-shaped groove 5 makes up on the well filter plate body 4, compare with V-arrangement filter plate body under the condition such as same height, same width among the prior art, the filter area of the buckled plate of U-shaped enlarges by a wide margin, the filtrate velocity of flow becomes fast, form the vacuum more easily, make the filter screen surface solid quality in the filter plate body 4 outside bigger, and because the smoothness degree is bigger everywhere of the buckled plate of U-shaped, the resistance of fluid when having reduced and filtering; the filter plate openings 6 are matched with the filter guide plate 7, so that the fluid resistance flowing through the filter plate openings is reduced, the flow speed of the filter plate is further accelerated, and meanwhile, partial liquid can be prevented from flowing backwards.

The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (5)

1. The U-shaped corrugated filter plate component for the rotary drum filter is arranged between two adjacent partition plates on the surface of a rotary drum, and is characterized in that: the filter plate comprises a filter plate body, the filter plate body is a plurality of U-shaped grooves connected end to end, and each the junction of U-shaped grooves is wholly corrugated after being connected by the smooth transition of arc, at least the part of filter plate body one end the filter opening has been seted up to the tank bottom of U-shaped groove, the part of filter opening part the filter plate body downwarping is done simultaneously and is filtered the guide plate, the filter plate body with at least one enhancement backup pad of fixedly connected with between the rotary drum, the both ends of filter plate body with be equipped with filter installation device between the baffle respectively.

2. A U-shaped corrugated filter plate assembly for a drum filter as set forth in claim 1 wherein: the filter installation device comprises a mounting support plate in a shape like a Chinese character 'ji' on the top end of the partition plate, a mounting pressing plate is attached to the outer side of the mounting support plate, the end part of the filter body is clamped between the mounting support plate and the mounting pressing plate, a sealing strip is arranged between one end of the filter body and the corresponding partition plate, and the sealing strip is pressed between the mounting support plate and the mounting pressing plate.

3. A U-shaped corrugated filter plate assembly for a rotary drum filter according to claim 2, wherein: and mounting holes which are matched with each other for use are respectively formed through the mounting support plate and the mounting pressing plate.

4. A U-shaped corrugated filter plate assembly for a drum filter as set forth in claim 2 wherein: and the two ends of the filter plate body are respectively provided with a pressing plate concave platform for supporting the mounting pressing plate.

5. A U-shaped corrugated filter plate assembly for a drum filter as set forth in claim 2 wherein: the filter plate opening is formed in the bottom of the U-shaped groove at the two ends of the filter plate body, and the two ends of the filter plate body are arranged oppositely in the flow guide direction of the filter flow guide plate.

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