CN210206118U

CN210206118U - Demagnetizer disc type vacuum filter

Info

Publication number: CN210206118U
Application number: CN201920854849.3U
Authority: CN
Inventors: Fengye He; 何凤叶
Original assignee: Houying Group Haicheng Tailing Processing Co Ltd
Current assignee: Houying Group Haicheng Tailing Processing Co Ltd
Priority date: 2019-06-09
Filing date: 2019-06-09
Publication date: 2020-03-31
Anticipated expiration: 2029-06-09

Abstract

The utility model relates to the field of filtering devices, and discloses a demagnetizer disc type vacuum filter, which comprises a mounting seat, a slurry filtering groove, a rotary drum and a distribution head, wherein the rotary drum comprises a fixed disc and a rotary disc, the rotary disc is provided with a plurality of rotary drum wall holes, the fixed disc is provided with a washing water tank hole, a filtrate tank hole and a compressed air source hole which are matched with the positions of the rotary drum wall holes, the fixed disc is provided with a sealing device, the sealing device comprises an annular sleeve fixedly connected with the outer wall of the fixed disc, the annular sleeve is sleeved outside the rotary disc, the annular sleeve is rotatably provided with a pair of arc plates through a rotating shaft, the inner walls of the pair of arc plates are provided with sealing gaskets, the arc plates are connected through a fixing device, the sealing degree between the fixed disc and the rotary disc in the distribution head can be increased, the leakage situation between the fixed disc and the rotary disc is not easy to occur, the filtering effect of, the overflow phenomenon can be avoided when the filter pulp is added into the filter pulp tank.

Description

Demagnetizer disc type vacuum filter

Technical Field

The utility model relates to a filter equipment field, more specifically say, in particular to demagnetizer disk vacuum filter.

Background

The main component of the demagnetizer disc type vacuum filter is a rotary drum covered with filter cloth. Part of the rotary drum is immersed in the filter pulp, the vacuum pump is discharged out of the rotary drum from the interior of the rotary drum through a pipeline and the vacuum pump, and filter residue is intercepted by the filter cloth, so that liquid and solid phases are separated. The structure of the rotary vacuum filter is shown in figure 1. The demagnetizer disc type vacuum filter mainly comprises a rotary drum 5, a distribution head 6 and a slurry filtering tank 2. The drum 5 is a rotatable horizontal cylinder, and the surface of the drum is covered with a layer of metal mesh, and the mesh is covered with filter cloth, and the filter cloth is usually canvas or metal wire cloth. The function of the metal mesh is to support the filter cloth. The drum is divided equally into a plurality of sectors which are not in communication with each other and are in communication with the filtrate tank, the wash water tank and the compressed air source through the wash water tank opening 15, the filtrate tank opening 16 and the compressed air source opening 17, respectively, by means of the dispensing head 6. When the rotary drum 5 rotates, the sector lattices are alternately in a vacuum state or a pressurization state. During filtration, the lower half of the drum is immersed in the straining tank 2. The filtering area immersed in the filtering slurry accounts for about 30-40% of the total area. The slurry filtering tank is provided with a stirring device 3, which is a conventional device, and the stirring device comprises a motor and a stirring blade arranged on the motor and is used for stirring the filtered slurry to be uniform.

The rotating drum 5 is driven to rotate by a motor through a transmission mechanism, and the rotating speed is 0.1-3 rpm. Each revolution, for any part of the surface, it undergoes filtration, washing, blotting and deslagging in sequence. The rotary drum is also divided into four areas, namely a filtering area, a liquid removal washing area, a dehydrating area and a filter residue stripping area according to different process operations.

When the rotary drum 5 vacuum filter works, the sector-shaped lattice in the filtering area (A) is immersed in the filter pulp and is communicated with a vacuum source, and filtrate passes through the filter cloth under the action of negative pressure to enter the sector-shaped lattice and is discharged through a pipeline on the distribution head 6. Because the fan-shaped grids in the liquid removal washing area (B) are still in a negative pressure state, residual filtrate can be completely absorbed, washing water is sprayed out from the spray head, and filter residues are washed. The fan-shaped grid of the dewatering area (C) is also positioned in the negative pressure area, and the filter residue is completely dewatered and dried. In the residue stripping zone (D), the fan-shaped grid is connected to a compressed air source, and the high-pressure air blows the sucked-off residue loose. Due to the rotation of the drum 5, the filter residue is stripped off by the mechanical force when the filter cloth passes through the scraper 7. This completes a filtration cycle. For each revolution, one cycle of operation is experienced. At any instant of time, the surfaces of the various parts are subjected to different phases of operation for the entire drum

The dispensing head 6 consists of a rotatable disk 28 mounted on the drum 5 and a stationary disk 14 in tight engagement therewith. The holes in the rotatable disk 28 communicate with the fan-shaped compartments within the drum so that each hole communicates with a respective section of the surface of the drum. The fixed disk 14 is provided with three through holes which are respectively communicated with two vacuum pipelines and a compressed air source which are communicated with the filtrate tank and the water washing tank. When the through-holes in the stationary disc 14 meet certain holes in the rotating disc, the drum surface is brought into different operating zones, respectively. When the blank position on the fixed full-size cylinder meets the small hole of the rotating disc, the corresponding area on the surface of the rotating drum stops working. This is a transition region that avoids cross-talk between the two operating regions.

The material of the rotatable disk 28 and the stationary disk 14 is often a wear resistant copper alloy of different grades and compositions. The sliding friction surfaces of both must be tightly sealed and properly lubricated. The fixed disk requires a suitable pressure against the rotating disk 28, typically controlled by an adjustable compression spring.

In the conventional demagnetizer disc type vacuum filter, a fixed disc 14 and a rotating disc 28 are abutted, and a compression spring 23 applies pressure to make the fixed disc 14 and the rotating disc 28 tightly fit with each other, but the tight fit effect is poor by the method, so that the inspection is required frequently, and the conventional slurry filtering tank 2 does not have a proper device for preventing overflow.

How to solve the technical problems becomes a difficult problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a demagnetizer disc vacuum filter to solve through this mode driving fit effect not good, need often overhaul, and current strain the problem that the dressing trough does not have the device of suitable prevention overflow.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a demagnetizer disc type vacuum filter comprises a mounting seat, a slurry filtering groove, a rotary drum and a distribution head, wherein the rotary drum comprises a fixed disc and a rotary disc, the rotary disc is provided with a plurality of rotary drum wall holes, the fixed disc is provided with a washing water tank hole, a filtrate tank hole and a compressed air source hole which are matched with the positions of the rotary drum wall holes, a sealing device is arranged on the fixed disc and comprises an annular sleeve fixedly connected with the outer wall of the fixed disc, the annular sleeve is sleeved on the outer side of the rotary disc, the annular sleeve is rotatably provided with a pair of arc-shaped plates through a rotary shaft, sealing gaskets are arranged on the inner walls of the pair of arc-shaped plates, the arc-shaped plates are connected through a fixing device, the sealing degree between the fixed disc and the rotary disc in the distribution head can be increased, the leakage between the fixed disc and the rotary disc is not easy to occur, the filtering effect of the device is increased, and an anti-, the overflow phenomenon can be avoided when the filter pulp is added into the filter pulp tank.

Further, fixing device is including a pair of arch with a pair of arc fixed connection respectively, and a pair of arch passes through the screw rod fixed, can be effectual fixed with a pair of arc, and fixing device simple structure, the effect is good.

Further, the one end fixedly connected with dead lever of rolling disc is kept away from to the fixed disk, the dead lever cover is established in compression spring, the dead lever still overlaps outward and is equipped with packing ring and turning block, the screw has been seted up on the turning block, the external screw thread has been seted up on the outer wall of dead lever, the packing ring is located between compression spring and the turning block, can increase the pressure to the fixed disk through above-mentioned device, and then makes the driving fit degree of fixed disk and turning disc increase, and can drive the packing ring through rotating the turning block and press compression spring right, can take place the driving fit degree of timely regulation fixed disk and turning disc when becoming flexible between fixed disk and turning disc.

Further, overflow arrangement is installed to the upside of straining the thick liquid groove, overflow arrangement includes the overflow pipe, holds chamber and communicating pipe, the upper portion and the lower part that hold the chamber are connected with overflow pipe and communicating pipe respectively, overflow pipe and communicating pipe all communicate with straining the thick liquid groove, install its valve of leading to closedly of control on communicating pipe, can effectually place strain the thick liquid groove and take place the overflow phenomenon when thick liquid is strained to the interpolation in straining the thick liquid groove.

Furthermore, the lower extreme that holds the chamber is equipped with the filter tube, install a valve of its open-close of control on the filter tube equally, can remove the filtration thick liquid of large granule, avoid blockking up.

Compared with the prior art, the utility model has the advantages of: the utility model relates to a multiple driving fit device and pressure device, make driving fit effect between the two increase, rotate a pair of arc, sealed pad in a pair of arc can seal between fixed disk and the rolling disc with the rolling disc is laminated mutually, through the screw rod and the rigidity of a pair of arch with the arc, before fixed disk and rolling disc take place not hard up, can also drive the packing ring through rotating the turning block and remove right, make compression spring compression, and then increase the driving fit between fixed disk and the rolling disc and imitate, driving fit degree between fixed disk and the rolling disc in can increasing the distributor head, make the difficult condition that takes place the leakage between it, increase the filterable effect of device, an anti-overflow device of this scheme still design simultaneously, can avoid taking place the overflow phenomenon when straining the thick liquid to straining the interpolation in the thick liquid groove.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a partial structural schematic view of a prior demagnetizer disc type vacuum filter;

FIG. 2 is a schematic view of a rotary disk structure of a conventional demagnetizer disk type vacuum filter;

FIG. 3 is a schematic structural diagram of a fixed disk in a disk type vacuum filter of a demagnetizer in the prior art;

FIG. 4 is a schematic view of a distribution head of a prior demagnetizer disk type vacuum filter;

FIG. 5 is a schematic structural view of a portion of the present invention;

FIG. 6 is a schematic view of a part of the structure of the arc plate of the present invention;

fig. 7 is a schematic structural view of the pulp filtering groove of the present invention.

Description of reference numerals: the device comprises a mounting seat 1, a slurry filtering tank 2, a stirring device 3, a clear water spray head 4, a rotary drum 5, a distribution head 6, a scraper 7, an overflow pipe 8, a containing cavity 9, a filter pipe 10, a communicating pipe 11, a valve 12, a rotary drum wall hole 13, a fixed disc 14, a washing water tank hole 15, a filtrate tank hole 16, a compressed air source hole 17, an annular sleeve 18, an arc plate 19, a bulge 20, a screw rod 21, a fixed rod 22, a compression spring 23, a gasket 24, a rotating block 25, a rotating shaft 26, a sealing gasket 27 and a rotating disc 28.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

Referring to fig. 5, 6 and 7, the utility model provides a demagnetizer disc type vacuum filter, which comprises a mounting seat 1, a slurry filtering tank 2, a rotary drum 5 and a distributing head 6, wherein the rotary drum 5 comprises a fixed disc 14 and a rotary disc 28, the rotary disc 28 is provided with a plurality of through rotary drum wall holes 13, the fixed disc 14 is provided with a through washing water tank hole 15, a through filtrate tank hole 16 and a through compressed air source hole 17 which are matched with the through rotary drum wall holes 13 in position, the fixed disc 14 is provided with a sealing device, the sealing device comprises an annular sleeve 18 fixedly connected with the outer wall of the fixed disc 14, the annular sleeve 18 is sleeved outside the rotary disc 28, the annular sleeve 18 is rotatably provided with a pair of arc-shaped plates 19 through a rotating shaft 26, the inner walls of the pair of arc-shaped plates 19 are both provided with sealing gaskets 27, the arc-shaped plates 19 are connected through a fixing device, the sealing degree between the fixed disc 14 and the rotary disc, make the difficult condition that takes place to leak between it, increase the filterable effect of device, an overflow prevention device that this scheme still designed simultaneously can avoid taking place the overflow phenomenon when filtering thick liquid to adding in straining thick liquid groove 2.

In this embodiment, fixing device is including a pair of arch 20 with a pair of arc 19 fixed connection respectively, and a pair of arch 20 passes through screw rod 21 fixed, can be effectual fixed a pair of arc 19, and fixing device simple structure, the effect is good.

In this embodiment, the one end fixedly connected with dead lever 22 that the rolling disc 28 was kept away from to fixed disk 14, dead lever 22 cover is established in compression spring 23, dead lever 22 still overlaps outward and is equipped with packing ring 24 and turning block 25, the screw has been seted up on the turning block 25, the external screw thread has been seted up on the outer wall of dead lever 22, packing ring 24 is located between compression spring 23 and the turning block 25, can increase the pressure to fixed disk 14 through above-mentioned device, and then make the driving fit degree of fixed disk 14 and turning disc 28 increase, and can drive packing ring 24 through rotating block 25 and press compression spring 23 to the right, can take place timely regulation fixed disk 14 and the driving fit degree of turning disc 28 when becoming flexible between fixed disk 14 and turning disc 28.

In this embodiment, overflow arrangement is installed to the upside of straining thick liquid groove 2, and overflow arrangement includes overflow pipe 8, holds chamber 9 and communicating pipe 11, holds the upper portion and the lower part of chamber 9 and is connected with overflow pipe 8 and communicating pipe 11 respectively, and overflow pipe 8 and communicating pipe 11 all communicate with straining thick liquid groove 2, install its valve 12 of leading to closedly of control on communicating pipe 11, strain thick liquid groove 2 and take place the overflow phenomenon when can effectually placing to adding in straining thick liquid groove 2 and strain thick liquid.

In this embodiment, the lower end of the containing cavity 9 is provided with a filter pipe 10, and the filter pipe 10 is also provided with a valve 12 for controlling the opening and closing of the filter pipe, so that large-particle filtered pulp can be removed, and blockage can be avoided.

The utility model discloses a theory of operation: because the existing distribution head 6 (as shown in fig. 4) comprises a fixed disk 14 and a rotating disk 28, which are tightly sealed by a compression spring, the tight sealing effect is not good, and needs to be frequently overhauled, the scheme designs multiple tight sealing devices and pressure devices, so that the tight sealing effect between the fixed disk 14 and the rotating disk 28 is increased, the pair of arc plates 19 are rotated, sealing gaskets 27 in the pair of arc plates 19 are attached to the rotating disk 28 to seal between the fixed disk 14 and the rotating disk 28, the positions of the arc plates 19 are fixed by a screw 21 and a pair of bulges 20, before the fixed disk 14 and the rotating disk 28 are loosened, a gasket 24 can be driven by rotating the rotating block 25 to move rightwards, so that the compression spring 23 is compressed, further the tight sealing effect between the fixed disk 14 and the rotating disk 28 is increased, the tight sealing degree between the fixed disk 14 and the rotating disk 28 in the distribution head 6 can be increased, and the leakage, increase the filterable effect of device, an overflow prevention device that this scheme still designed simultaneously can avoid taking place the overflow phenomenon when straining thick liquid to the interpolation in straining thick liquid groove 2.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, various changes and modifications can be made by the owner of the patent within the scope of the appended claims, for example, the conventional replacement of the fixing device, and the protection scope of the present invention should be within the protection scope of the present invention as long as the protection scope of the present invention is not exceeded by the claims.

Claims

1. The utility model provides a demagnetizer disc type vacuum filter, includes mount pad (1), strain thick liquid groove (2), rotary drum (5) and distribution head (6), rotary drum (5) are including fixed disk (14) and rolling disc (28), a plurality of logical rotary drum wall hole (13) have been seted up on rolling disc (28), set up on fixed disk (14) with lead to rotary drum wall hole (13) position assorted logical washing water tank hole (15), lead to filtrate tank hole (16) and lead to compressed air source hole (17), its characterized in that: install sealing device on fixed disk (14), sealing device include with fixed disk (14) outer wall fixed connection's annular cover (18), the outside at rolling disc (28) is established to annular cover (18) cover, a pair of arc (19) is installed through pivot (26) rotation ground in annular cover (18), and is a pair of sealed pad (27) is all installed to the inner wall of arc (19), arc (19) are connected through fixing device.

2. The demagnetizer disk vacuum filter of claim 1, wherein: the fixing device comprises a pair of bulges (20) fixedly connected with the pair of arc-shaped plates (19) respectively, and the pair of bulges (20) are fixed through a screw rod (21).

3. The demagnetizer disk vacuum filter of claim 1, wherein: the one end fixedly connected with dead lever (22) of rolling disc (28) is kept away from in fixed disk (14), dead lever (22) cover is established in compression spring (23), dead lever (22) still overlap outward and is equipped with packing ring (24) and turning block (25), the screw has been seted up on turning block (25), the external screw thread has been seted up on the outer wall of dead lever (22), packing ring (24) are located between compression spring (23) and turning block (25).

4. The demagnetizer disk vacuum filter of claim 1, wherein: overflow arrangement is installed to the upside of straining thick liquid groove (2), overflow arrangement includes overflow pipe (8), holds chamber (9) and communicating pipe (11), the upper portion and the lower part that hold chamber (9) are connected with overflow pipe (8) and communicating pipe (11) respectively, overflow pipe (8) and communicating pipe (11) all communicate with straining thick liquid groove (2), install its valve (12) of controlling on communicating pipe (11).

5. The demagnetizer disk vacuum filter of claim 4, wherein: the lower end of the containing cavity (9) is provided with a filter pipe (10), and the filter pipe (10) is also provided with a valve (12) for controlling the opening and closing of the filter pipe.