WO2020098700A1

WO2020098700A1 - Novel magnetic filter screen

Info

Publication number: WO2020098700A1
Application number: PCT/CN2019/117993
Authority: WO
Inventors: 陈晓辉
Original assignee: 王光领
Priority date: 2018-11-14
Filing date: 2019-11-13
Publication date: 2020-05-22
Also published as: CN109351469A

Abstract

A magnetic filter screen, comprising a screen body (1) and a driving device. A feed port (2) and a discharge port (3) are integrally formed on two sides of the screen body (1); a first side plate (4) parallel to the feeding direction is integrally formed at the top of the screen body (1); several filter rods (5) perpendicular to the first side plate (4) are fixed on the first side plate (4); a rotating shaft (6) is rotatably connected in each filter rod (5); the rotating shafts (6) in the several filter rods (5) all penetrate the first side plate (4) to be drivingly connected to the driving device; the driving device drives the rotating shafts (6) to rotate; several strip-shaped permanent magnets (7) having magnetic induction lines perpendicular to the axis of the rotating shaft (6) are fixed on the rotating shaft (6); a soft magnetic block (8) is fixed on the side of the filter rod (5) close to the feed port (2); the driving device drives the strip-shaped permanent magnets (7) to rotate to magnetize and demagnetize the soft magnetic block (8); a second side plate (9) is movably connected to the bottom of the screen body (1); the second side plate (9) is opened when the soft magnetic block (8) is demagnetized, and the second side plate (9) is closed when the soft magnetic block (8) is magnetized. The magnetic filter screen has a simple and efficient working process, high work efficiency, and low energy consumption, can effectively reduce the costs of filtering magnetic substances, and is beneficial to the widespread use of magnetic filter screens.

Description

A new type of magnetic filter screen

Technical field

The invention relates to the technical field of filter screens, and specifically refers to a new type of magnetic filter screens.

Background technique

In coal mines and other industries, magnetic substances are often involved. Magnetic substances are often mixed with non-magnetic substances. Separating magnetic substances from non-magnetic substances is the key point for extracting magnetic substances. Existing magnetic filter screens mostly use magnetic materials or The way in which the electromagnet adsorbs the magnetic substance in the mixed material, these two methods have a good filtering effect on the magnetic substance, therefore, the use range is relatively wide, and the adsorption of the magnetic substance by the electromagnet encounters many problems in use, although This method has less damage to the electromagnet part, and the operation is more convenient than the method of adsorbing the magnetic substance through the magnetic material. However, because the time for the electromagnet to adsorb the magnetic substance is much longer than the cleaning time, the overall work of the filter screen is more expensive The large amount of electricity greatly increases the cost of magnetic substance filtration. In the overall operation, more electromagnet control valves and other electrical components need to be designed, which increases the failure rate of the magnetic filter screen and affects the overall working efficiency. Among them, the production cost and use cost of the magnetic filter screen are increased, so it needs to be improved and upgraded.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the above technical defects and provide a new type of magnetic filter screen with low cost and high efficiency.

In order to solve the above technical problems, the technical solution provided by the present invention is: a new type of magnetic filter screen, including a screen body and a driving device, an inlet and an outlet are integrally formed on both sides of the screen body, and the top of the screen body is integrated A first side plate parallel to the feeding direction is formed, and a plurality of filter rods perpendicular to the first side plate are fixed on the first side plate. A rotating shaft is connected to the filter rod in rotation, and the rotating shafts in several filter rods are all The first side plate passes through a drive connection with the driving device, and the driving device drives the rotating shaft to rotate. A number of strip-shaped permanent magnets perpendicular to the axis of the rotating shaft are fixed on the rotating shaft. The filter rod is fixed on the side near the feed port There is a soft magnetic block, and the driving device drives the bar-shaped permanent magnet to rotate to magnetize and demagnetize the soft magnetic block. A second side plate is movably connected to the bottom of the sieve body. The second side plate is opened when the soft magnetic block is demagnetized. The two side panels are closed.

Compared with the prior art, the present invention has the advantage that a new type of magnetic filter screen includes filter rods, strip-shaped permanent magnet blocks, soft magnetic blocks and other components, and contains a mixture of magnetic substances and non-magnetic substances from the screen body. The inlet enters and exits from the outlet, where the mixture passes through the filter rod when passing through the sieve body. At this time, the magnetic pole of the strip-shaped permanent magnet block in the filter rod is facing the soft magnetic block. The soft magnetic block is magnetized and has a very Large suction force, the magnetic substance is adsorbed on the surface of the filter rod by the soft magnetic block, the non-magnetic substance in the mixture is discharged from the discharge port, and when the magnetic substance accumulates on the surface of the filter rod to a saturated state, the motor in the drive device Drive the rotating shaft to rotate ninety degrees, the strip-shaped permanent magnet block rotates accordingly, the soft magnetic block demagnetizes, and the magnetic substance adsorbed on the surface of the filter rod falls to the second side plate in the sieve body, just open the second side plate It can complete the discharge of magnetic substances. The overall filtering work of the magnetic filter screen involves very few electrical components. It only consumes a small amount of power when rotating the bar-shaped permanent magnet block, which directly solves the problem of large power consumption of the traditional magnetic filter screen. It also effectively reduces the failure rate of the overall work. The magnetic conversion on the filter rod is fast, which greatly improves the filtration efficiency. The magnetic substance adsorbed on the filter rod can be dropped without other operations, avoiding the wear of the filter rod. A new type of magnetic The overall work flow of the filter screen is simple and efficient, with high work efficiency and very little energy consumption, which effectively reduces the cost of magnetic substance filtration, and is beneficial to the wide-scale promotion and use of the magnetic filter screen.

As an improvement, the second side plate is rotatably connected to the sieve body. A connecting shaft is integrally formed at the rotational connection of the second side plate and the sieve body. The connecting shaft penetrates through the sieve body and is connected with a hydraulic rotating oil cylinder. The opening and closing of the second side plate at the bottom of the screen body, the hydraulic rotary oil cylinder runs stably and efficiently, and can be automatically controlled, which further improves the overall working efficiency.

As an improvement, the driving device includes a stepping motor and a rotating rod drivingly connected to the stepping motor. The rotating rod is drivingly connected to the rotating shafts in several filter rods, so that one motor can drive all the rotating shafts to facilitate control. At the same time, the overall failure rate is greatly reduced, which can effectively reduce production costs and use costs.

BRIEF DESCRIPTION

Fig. 1 is a schematic structural view of a novel magnetic filter screen of the present invention.

FIG. 2 is a schematic structural view of a novel magnetic filter screen of the present invention when magnetic substances are discharged.

As shown in the figure: 1. Screen body, 2. Inlet port, 3. Outlet port, 4. First side plate, 5, filter rod, 6. Rotating shaft, 7, permanent magnet bar, 8, soft

magnetic Block

9, 9. Second side panel.

detailed description

The present invention will be further described in detail below with reference to the drawings.

A new type of magnetic filter screen includes a screen body 1, a driving device (not shown in the drawings), a feed port 2 and a discharge port 3 are integrally formed on both sides of the screen body 1, the screen body 1 is a box Structure, the inlet 2 and the outlet 3 can form an integral structure with the screen body 1 by welding, forging, etc. The top of the screen body 1 is integrally formed with a first side plate 4 parallel to the feed direction, the first side plate 4 A number of filter rods 5 perpendicular to the first side plate 4 are fixed on the filter rod 5, and the filter rod 5 should be made of a harder material and will not be magnetized. The filter rod 5 can be fixed on the first side plate by screws, fixing pins, etc. 4. On the filter rod 5, a rotating shaft 6 is rotatably connected, and the rotating shafts 6 in several filter rods 5 all penetrate the first side plate 4 and are connected to the driving device, and the driving device drives the rotating shaft 6 to rotate, and the rotating shaft 6 A plurality of strip-shaped permanent magnets 7 with a magnetic induction line perpendicular to the axis of the rotating shaft 6 are fixed, and a soft magnetic block 8 is fixed on the filter rod 5 on the side near the feed port 2, and the driving device drives the strip-shaped permanent magnet 7 to rotate The magnetic block 8 is magnetized and demagnetized. During the filtration, the driving device drives the bar-shaped permanent magnet 7 to face the soft magnetic block 8. After the soft magnetic block 8 is magnetized, the magnetic substance can be adsorbed on the filter rod 5 and needs to be cleaned. In the case of magnetic substances, the driving device drives the bar-shaped permanent magnet 7 to rotate ninety degrees, the soft magnetic block is demagnetized, the magnetic substance on the filter rod 5 is dropped immediately, the second side plate 9 is movably connected to the bottom of the sieve body 1, and the soft magnetic block 8 is demagnetized When the second side plate 9 is opened, the second side plate 9 is closed when the soft magnetic block 8 is magnetized.

In order to ensure the effective discharge of the magnetic substance, further, the second side plate 9 is rotatably connected to the sieve body 1, and a connecting shaft is integrally formed on the second side plate 9 and the sieve body 1 at the rotational connection (the drawing is not shown ), The connecting shaft runs through the screen body 1 and is connected with a hydraulic rotating oil cylinder. The hydraulic rotating oil cylinder drives the opening and closing of the second side plate 9 at the bottom of the screen body 1. The hydraulic rotating oil cylinder runs stably and efficiently, and can be automatically controlled to further improve Overall work efficiency.

In order to ensure the effective rotation of the rotating shaft 6, further, the driving device includes a stepping motor and a rotating rod drivingly connected to the stepping motor, and the rotating rod is in driving connection with the rotating shaft 6 in a number of filter rods 5 to realize a The motor drives all the rotating shafts 6 to rotate, which is convenient for control and the overall failure rate is greatly reduced, which can effectively reduce production costs and use costs.

The present invention is mainly used for the filtration of magnetic substances. In specific use, the mixture containing magnetic substances and non-magnetic substances enters from the inlet of the sieve body and exits from the outlet of the sieve body, where the mixture material passes through the sieve body The filter rod. At this time, the magnetic poles of the strip-shaped permanent magnet block in the filter rod face the soft magnetic block. The soft magnetic block is magnetized and has great attraction. The magnetic substance is adsorbed on the surface of the filter rod by the soft magnetic block. The mixture The non-magnetic substance in the material is discharged from the discharge port. When the magnetic substance accumulates on the surface of the filter rod to a saturated state, the motor in the driving device drives the rotating shaft to rotate ninety degrees, and the strip-shaped permanent magnetic block rotates accordingly, and the soft magnetic block After degaussing, the magnetic substance adsorbed on the surface of the filter rod will immediately fall to the bottom of the screen body, and the second side plate at the bottom of the screen body will be driven by the hydraulic rotating oil cylinder to complete the discharge of the magnetic material.

The present invention and its embodiments have been described above. This description is not limiting, and the drawings shown are only one of the embodiments of the present invention, and the actual structure is not limited thereto. To sum up, if a person of ordinary skill in the art is inspired by it, without departing from the purpose of the invention, a structural method and an embodiment similar to the technical solution without creative design shall fall within the protection scope of the invention.

Claims

A new type of magnetic filter screen includes a screen body (1) and a driving device. The screen body (1) is integrally formed with a feed port (2) and a discharge port (3) on both sides, and is characterized by a screen body (1) The top is integrally formed with a first side plate (4) parallel to the feeding direction, and a number of filter rods (5) perpendicular to the first side plate (4) are fixed on the first side plate (4) to filter A rotating shaft (6) is connected to the rod (5) in rotation, and the rotating shafts (6) in several filter rods (5) all penetrate through the first side plate (4) and are connected to the driving device, and the driving device drives the rotating shaft ( 6) Rotate, a number of bar-shaped permanent magnets (7) perpendicular to the axis of the rotating shaft (6) are fixed on the rotating shaft (6), and the filter rod (5) is fixed on the side close to the feed port (2) There is a soft magnetic block (8), the driving device drives the bar-shaped permanent magnet (7) to rotate to magnetize and demagnetize the soft magnetic block (8), the bottom of the screen body (1) is movably connected with a second side plate (9), soft magnetic The second side plate (9) is opened when the block (8) is demagnetized, and the second side plate (9) is closed when the soft magnetic block (8) is magnetized.
A novel magnetic filter screen according to claim 1, characterized in that the second side plate (9) is rotatably connected to the screen body (1), and the second side plate (9) is connected to the screen body (1 ) A rotating shaft is integrally formed with a connecting shaft. The connecting shaft penetrates the screen body (1) and is connected with a hydraulic rotating oil cylinder. The hydraulic rotating oil cylinder drives the opening and closing of the second side plate (9) at the bottom of the screen body (1).
A new type of magnetic filter screen according to claim 1, characterized in that the driving device comprises a stepping motor and a rotating rod connected to the stepping motor, the rotating rod and a number of filter rods (5) The rotating shaft (6) is connected by transmission.