CN116422035A - A multi-stage filter device for grinding aid production - Google Patents

Abstract

The invention discloses a multi-stage filter device for grinding aid production, which comprises a shell, which is provided with a feed port and a discharge port, and a plurality of filter cartridges arranged at intervals from the inside to the outside in the shell, And from the inside to the outside, the meshes of the filter cartridges are successively reduced; the inside of the innermost filter cartridge and the positions between adjacent filter cartridges are provided with movable plates, and the outer edges of the movable plates are provided with contacts with the inner surface of the filter cartridges. The cleaning blocks of the adjacent movable plates are adsorbed and linked by the magnetic suction parts set at the edge of the movable plates. One of the movable plates is connected with a driving part, which is used to drive all the movable plates and cleaning blocks to move synchronously along the inner surface of the filter cartridge. Realize the cleaning of insoluble impurities on the inner surface of the filter cartridge. The multi-stage filter device can simultaneously realize the cleaning of the multi-stage filter cartridges, ensure long-term filtration efficiency, and can realize non-stop cleaning and removal-free cleaning, which is very convenient.

Description

A multi-stage filter device for grinding aid production

technical field

The invention relates to the technical field of grinding aid production equipment, in particular to a multi-stage filter device for grinding aid production.

Background technique

Grinding aid is an additive to improve grinding efficiency. It is divided into two types: liquid and solid. Among them, liquid grinding aid is most widely used in cement production, which can improve grinding efficiency and reduce power consumption in grinding operations. In the production process of liquid grinding aids, there will be more insolubles and sediments, which are usually filtered by multi-stage filtration devices to improve the production quality of grinding aids. For example, the publication number is CN215276085U discloses a kind of multi-stage filter device for producing liquid cement grinding aid, which adopts an integrated structure, and the publication number is CN103111119A. Stage filter device, which adopts a split structure.

There is a defect in these existing multi-stage filter devices, that is: many grinding aids have more insoluble impurities due to raw material quality problems, process precision problems, or long-term stacking, which often cause filter screen blockage during filtration, so frequent cleaning is required. It is very troublesome to clean the filter screen, and when cleaning, the filter operation needs to be stopped, and the filter screen needs to be removed first, then cleaned, and finally reinstalled.

Contents of the invention

The purpose of the present invention is to provide a multi-stage filter device for grinding aid production, which solves the defects that the existing multi-stage filter device for grinding aid production needs to be shut down for cleaning when cleaning the filter screen, and the cleaning operation is very troublesome .

The present invention achieves the above object through the following technical solutions:

A multi-stage filter device for grinding aid production, comprising a housing, the housing is provided with a feed port and a discharge port, and the housing is provided with a plurality of filter cartridges distributed sequentially from the inside to the outside, And the meshes of the filter cartridges are reduced sequentially from the inside to the outside, the feed inlet is communicated with the inner space of the innermost filter cartridge, and the discharge port is communicated with the outer space of the outermost filter cartridge;

The inner side of the innermost filter cartridge and the position between the adjacent filter cartridges are equipped with movable plates, and the outer edges of the movable plates are provided with cleaning blocks that are in contact with the inner surface of the filter cartridges. The magnetic suction parts set at the edge of the plate are adsorbed and linked, and one of the movable plates is connected with a driving part, which is used to drive all the movable plates and cleaning blocks to move synchronously along the inner surface of the filter cartridge to clean the insoluble impurities on the inner surface of the filter cartridge.

A further improvement is that the movable plate is arranged to intercept laterally, and the inner movable plate of the innermost filter cartridge is in the shape of a disk, and the movable plate between adjacent filter cartridges is in the shape of a ring.

A further improvement is that elastic bodies are provided on the outer edges of the movable plates, and the cleaning block is mounted on the elastic bodies and presses into contact with the inner surface of the filter cartridge through the elastic action of the elastic bodies.

A further improvement is that the driving member includes a motor arranged outside the casing, a friction drive wheel arranged at the output end of the motor, and a transmission rod connected to one of the movable plates, the transmission rod extends to the outside of the casing and is in contact with the friction Drive wheel contact.

A further improvement is that the bottom of the filter cartridge contains a section of sealing cartridge without filter holes, and several flow holes with one-way valves are opened on the movable plates, and the one-way valves only allow the grinding aid to pass through Pass through the movable plate from top to bottom, and the bottom surface of one of the movable plates is connected with a push rod through an elastic hinge, and the push rod can rotate between the state flush with the bottom surface of the movable plate and the state vertically downward, and the When subjected to an external force, it is kept vertically downward under the elastic action of the elastic hinge. The bottom of the shell is connected to a sedimentation tank containing water, and the connection position is an open structure that communicates with each other. There is a mounting platform inside the sedimentation tank , the top of the mounting table is supported by a sealing plate through a spring, and the sealing plate seals the open structure under the action of the spring, and a limit hole that penetrates up and down is opened on the sealing plate directly below the push rod, so The top of the mounting table is connected with a push rod, the top of the push rod is an inclined plane, and the top of the push rod is movable and sealed into the limit hole;

When the driving part drives all the movable plates to move upward, the flow hole is opened, and the insoluble impurities cleaned in the space above the movable plate enter the space below the movable plate through the flow hole until the movable plate reaches the topmost position; when the driving part drives all the movable plates When the plate moves downward, the flow holes are closed, and the movable plate pushes the cleaned insoluble impurities to move downward, and after the movable plate contacts each sealing cylinder, the movable plate seals the open structure, and the push rod touches the limit Position the top opening of the position hole and gradually push the sealing plate downwards, so that the sealing plate is separated from the open structure, and the water in the sedimentation tank is poured into the gap between the sealing plate and the movable plate to disperse the insoluble impurities that have been cleaned, and the push rod Continue to push down the sealing plate, the spring is compressed until the movable plate reaches the lowest position, at this time, the ejector rod protrudes from the limit hole and deflects the push rod through the action of the inclined plane, and cooperates with the elastic action of the spring to seal The plate is pushed upwards, so that the push rod rotates to be flush with the bottom surface of the movable plate, and the sealing plate and the movable plate are quickly closed. After closing, the sealing plate seals the open structure and the water and insoluble impurities in the gap between the sealing plate and the movable plate are quickly removed. Extrusion, after extrusion, the insoluble impurities are precipitated in the sedimentation box.

A further improvement lies in that the movable plate connected to the driving member and the movable plate connected to the push rod are the same movable plate.

A further improvement is that a roller is provided at the free end of the push rod, and the diameter of the roller is larger than the diameter of the limiting hole.

The beneficial effects of the present invention are:

(1) The multi-stage filter device can simultaneously realize the cleaning of the multi-stage filter cartridges, ensure the high efficiency of filtration for a long time, and can realize non-stop cleaning and removal-free cleaning, which is very convenient;

(2) The multi-stage filtering device can realize the cleaning process and the discharge and collection process of the insoluble impurities after cleaning only by using one driving part. It has a high degree of automation, is convenient for unified control, and has good stability.

Description of drawings

Fig. 1 is a vertical cross-sectional schematic view of a multi-stage filter device for grinding aid production when the open structure is blocked by a sealing plate;

Fig. 2 is the cross-sectional schematic view of the multi-stage filter device for grinding aid production;

Fig. 3 is an enlarged view of part A in Fig. 1;

Fig. 4 is a vertical cross-sectional schematic diagram of a multi-stage filter device for grinding aid production when the open structure is blocked by a movable plate;

Fig. 5 is an enlarged view of part B in Fig. 4;

In the figure: 1. shell; 2. feed port; 3. discharge port; 4. filter cartridge; 401. sealing cartridge; 5. movable plate; 501. cleaning block; ; 504, circulation hole; 505, push rod; 506, roller; 6, motor; 7, friction drive wheel; 8, transmission rod; 121, limit hole; 13, push rod.

Detailed ways

The application will be described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific embodiments are only used to further illustrate the application, and cannot be interpreted as limiting the protection scope of the application. The above application content makes some non-essential improvements and adjustments to this application.

As shown in Figures 1-5, a multi-stage filter device for grinding aid production includes a shell 1, which is provided with a feed port 2 and a discharge port 3, and the shell 1 is provided with a plurality of The filter cartridges 4 are arranged at intervals from the inside to the outside, and the meshes of the filter cartridges 4 are successively reduced from the inside to the outside. The outer space is connected, the liquid grinding aid enters the inner space of the innermost filter cartridge 4 through the feed port 2, and is filtered by the multi-stage filter cartridge 4 sequentially from the inside to the outside to filter insoluble impurities of different particle sizes. The insoluble impurities under the filter adhere to the inner surface of the filter cartridge 4 or between adjacent filter cartridges 4, and the filtered grinding aid is discharged from the discharge port 3;

The inner side of the innermost filter cartridge 4 and the position between the adjacent filter cartridges 4 are all provided with a movable plate 5, the movable plate 5 is arranged for transverse interception, and the inner movable plate 5 of the innermost filter cartridge 4 is disc-shaped, adjacent to the filter The movable plate 5 between the cylinders 4 is circular, and the outer edge of the movable plate 5 is provided with a cleaning block 501 in contact with the inner surface of the filter cartridge 4. The magnetic suction part 502 is adsorbed and linked, and the magnetic suction part 502 can be a matching structure of a magnet ring and an iron ring. One of the movable plates 5 is connected with a driving part, and the driving part can work at regular intervals to drive all the movable plates 5 and clean them. The block 501 moves synchronously along the inner surface of the filter cartridge 4 to realize the cleaning of the insoluble impurities on the inner surface of the filter cartridge 4, avoiding the clogging of the filter cartridge 4, and it is very convenient to clean without stopping the machine or manually.

Preferably in the present invention, the outer edge of movable plate 5 is all provided with elastic body 503, and elastic body 503 can be elastic rubber etc., and cleaning block 501 is installed on elastic body 503 and by the elastic effect of elastic body 503 and filter cartridge 4 inside The surfaces are pressed into contact, thereby increasing the cleaning effect.

Preferably in the present invention, the driving member includes a motor 6 arranged outside the casing 1, a friction drive wheel 7 arranged at the output end of the motor 6, and a transmission rod 8 connected to one of the movable plates 5, and the transmission rod 8 extends to the casing. Body 1 outside and in contact with friction drive wheel 7.

Preferably in the present invention, the bottom of filter cartridge 4 all comprises a section of sealing cartridge 401 that is not provided with filter holes, and movable plate 5 is provided with some flow holes 504 with check valves (such as ball valves), and the check valves are Only allow the grinding aid to pass through the movable plate 5 from top to bottom, and the bottom surface of one of the movable plates 5 is connected with a push rod 505 by an elastic hinge, and the push rod 505 is in a state parallel to the bottom surface of the movable plate 5 and vertically downward. It can be rotated between the states, and when it is not subjected to external force, it is kept vertically downward under the elastic action of the elastic hinge. The bottom of the shell 1 is connected to the sedimentation tank 9 containing the water body, and the connection position is an open structure that communicates with each other. Settling box 9 is provided with mounting platform 10, and the top of mounting platform 10 is supported with sealing plate 12 by spring component 11, and sealing plate 12 will open structure blockage under the effect of spring component 11, and sealing plate 12 is on push rod 505 normal A limit hole 121 is provided at the lower position, and the top of the mounting table 10 is connected with a push rod 13, the top of the push rod 13 is an inclined plane, and the top of the push rod 13 is movable and sealed into the limit hole 121;

When the driver drives all the movable plates 5 to move upwards, the flow hole 504 is opened, and the insoluble impurities cleaned in the space above the movable plate 5 enter the space below the movable plate 5 by the flow hole 504, and the grinding aid can pass through the flow hole 504 or The cylinder surface of the filter cartridge 4 enters the lower space from the side until the movable plate 5 reaches the topmost position, which does not affect the filtering process; when the driving part drives all the movable plates 5 to move downward, the flow holes 504 are closed, and the grinding aid passes through the filter. The cylinder surface of cylinder 4 enters the upper space from the side, and does not affect the process of filtration. The movable plate 5 pushes the cleaned insoluble impurities to move downward, and after the movable plate 5 contacts with each sealing cylinder 401, the movable plate 5 will be exposed. The structure is blocked, the push rod 505 abuts against the top opening position of the limit hole 121 and gradually pushes the sealing plate 12 downward, so that the sealing plate 12 is separated from the open structure, and the water in the sedimentation tank 9 is poured into the sealing plate 12 and the movable In the gap of the plate 5 (at this time, most of the gap is insoluble impurities, and a small amount of grinding aid is inevitable), the insoluble impurities under cleaning are washed away (refer to the state in Figure 4), and the push rod 505 continues to push the sealing plate downward 12. The spring member 11 is compressed until the movable plate 5 reaches the lowest end position. At this time, the push rod 13 protrudes from the limit hole 121 and deflects the push rod 505 through the action of the inclined plane, and cooperates with the elastic action of the spring member 11 to seal the plate. 12 is pushed upwards, so that the push rod 505 is rotated to a state flush with the bottom surface of the movable plate 5, and the sealing plate 12 and the movable plate 5 are quickly closed, and after closing, the sealing plate 12 will block the open structure. The water body and insoluble impurities in the gap of the movable plate 5 are quickly squeezed out, and the insoluble impurities are dispersed in the settling box 9 after being squeezed out, and precipitate in the settling box 9 . Next, the control drive part drives all the movable plates 5 to move upwards, and during the movement, the push rod 505 returns to the vertically downward state under the elastic action of the elastic hinge.

In the present invention, according to the filtration amount of insoluble impurities, the driving member can be set to drive the movable plate 5 to reciprocate up and down once at a certain interval period, and the movable plate 5 is left at a fixed position after each reciprocating movement, for example, the stop position is just such that The position where the push rod 505 abuts against the top opening of the limiting hole 121 is used as the initial position. In each cleaning cycle, the driving member first drives the movable plate 5 to move upward to the top, and then drives the movable plate 5 to move downward to the bottom end. Complete the process of cleaning twice and discharging the insoluble impurities after cleaning, then drive the movable plate 5 to move upward for a short distance (determined by the length of the push rod 505), and return to the initial position. The control of these displacements and the control of the cycle time are both It can be realized by setting the controller parameters.

Preferably in the present invention, the movable plate 5 connected to the driver and the movable plate 5 connected to the push rod 505 are the same movable plate 5, so that the transmission between adjacent movable plates 5 only needs to overcome the gravity and the cleaning block and filter cartridge The friction factor between them is enough, the requirements for the magnetic attraction part 502 are reduced, and the reliability of the transmission is also improved.

Preferably in the present invention, the free end of push rod 505 is provided with roller 506, and the diameter of roller 506 is greater than the diameter of stopper hole 121, can guarantee that push rod 505 can not happen like this in the process that push rod 505 pushes sealing plate 12. deflection, and when the push rod 13 protrudes from the limit hole 121, the push rod 505 is guaranteed to deflect under the action of the inclined plane.

The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims (7)

1. The utility model provides a multistage filter device is used in grinding aid production, includes casing (1), be equipped with feed inlet (2) and discharge gate (3) on casing (1), its characterized in that, be equipped with a plurality of cartridge filters (4) that from inside to outside interval distribution in proper order in casing (1), and from inside to outside the mesh of cartridge filter (4) reduces in proper order, feed inlet (2) communicate with the inboard space of innermost cartridge filter (4), discharge gate (3) communicate with the outside space of outermost cartridge filter (4);

the inside of inboard cartridge filter (4) and position between adjacent cartridge filter (4) all are equipped with fly leaf (5), the outside edge of fly leaf (5) all is equipped with washs piece (501) that contact with cartridge filter (4) inside surface, adsorbs the linkage through piece (502) are inhaled to magnetism that sets up in fly leaf (5) border position between adjacent fly leaf (5), and one of them fly leaf (5) are connected with the driving piece for drive all fly leaf (5) and washs piece (501) and follow cartridge filter (4) inside surface synchronous motion, realize the clearance to the insoluble impurity of cartridge filter (4) inside surface.

2. The multistage filtering device for grinding aid production according to claim 1, wherein the movable plates (5) are transversely intercepted, the inner movable plate (5) of the innermost filter cylinder (4) is disc-shaped, and the movable plates (5) between adjacent filter cylinders (4) are annular.

3. The multistage filtering device for grinding aid production according to claim 1, wherein elastic bodies (503) are arranged on the outer side edges of the movable plates (5), and the cleaning blocks (501) are mounted on the elastic bodies (503) and are in extrusion contact with the inner side surfaces of the filter cartridges (4) through elastic action of the elastic bodies (503).

4. The multistage filtering device for grinding aid production according to claim 1, characterized in that the driving member comprises a motor (6) arranged outside the housing (1), a friction driving wheel (7) arranged at the output end of the motor (6), and a transmission rod (8) connected to one of the movable plates (5), wherein the transmission rod (8) extends outside the housing (1) and is in contact with the friction driving wheel (7).

5. The multistage filtering device for grinding aid production according to claim 1, wherein the bottom of the filtering cylinder (4) comprises a section of sealing cylinder (401) without a filtering hole, the movable plates (5) are provided with a plurality of circulating holes (504) with one-way valves, the one-way valves only allow grinding aid to pass through the movable plates (5) from top to bottom, the bottom surface of one movable plate (5) is connected with a push rod (505) through an elastic hinge, the push rod (505) can rotate between a state of being flush with the bottom surface of the movable plate (5) and a vertically downward state, and keeps the vertically downward state under the elastic action of the elastic hinge when no external force is applied, the bottom of the shell (1) is connected with a sedimentation tank (9) containing water, the connecting position is an intercommunicated open structure, a mounting table (10) is arranged in the sedimentation tank (9), the top of the mounting table (10) is supported by a spring element (11), the sealing plate (12) is connected with the push rod (505) through the elastic hinge under the action of the spring element (11), the open structure is provided with the push rod (505), the top of the push rod (12) is obliquely arranged in the top position of the top (13) and is in a position of being sealed and is in a position of being 13 in the top of the top (13) and is in a position of the top opening (13) is in a sealing position;

when the driving piece drives all the movable plates (5) to move upwards, the circulation holes (504) are opened, and insoluble impurities cleaned in the space above the movable plates (5) enter the space below the movable plates (5) from the circulation holes (504) until the movable plates (5) reach the top-most position; when the driving piece drives all the movable plates (5) to move downwards, the circulating holes (504) are closed, the movable plates (5) push the cleaned insoluble impurities to move downwards, after the movable plates (5) are in contact with the sealing drums (401), the movable plates (5) block the open structure, the push rods (505) are abutted against the top opening positions of the limiting holes (121) and gradually push the sealing plates (12) downwards, so that the sealing plates (12) are separated from the open structure, water in the sedimentation tank (9) is poured into the gap between the sealing plates (12) and the movable plates (5), the cleaned insoluble impurities are dispersed, the push rods (505) continuously push the sealing plates (12) downwards, the spring pieces (11) are compressed until the movable plates (5) reach the lowest end position, at the moment, the push rods (13) extend out of the limiting holes (121) and deflect the push rods (505) through the action of inclined planes, the elastic action of the matched spring pieces (11) push the sealing plates (12) upwards, the push rods (505) to be rotated to be flush with the bottom surfaces of the movable plates (5) and the sealing plates (12) and rapidly close the sealing plates (12) to the gap between the movable plates (5) and the sealing plates (12) and the gap between the sealing plates (12) and the sealing plates (5) are rapidly closed, insoluble impurities are precipitated in a precipitation tank (9) after extrusion.

6. The multistage filtering device for grinding aid production according to claim 5, wherein the movable plate (5) connected with the driving member and the movable plate (5) connected with the push rod (505) are the same movable plate (5).

7. The multistage filtering device for grinding aid production according to claim 5, characterized in that the free end of the push rod (505) is provided with a roller (506), and the diameter of the roller (506) is larger than the diameter of the limiting hole (121).

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