A magnetic filter

Abstract

The present invention discloses a magnetic filter, which relates to a water filtering device, including a shell, wherein an electromagnet is arranged in the shell, the electromagnet is plugged into the shell from above, the electromagnet is plugged into a filter structure, a scraper assembly is arranged in the filter structure, a motor is arranged on the top of the scraper assembly, the motor drives the scraper assembly to clean the filter structure, the top of the filter structure is connected to the bottom of the top cover of the shell through an elastic rope, the bottom of the filter structure is pressed on a magnetic recovery assembly, and the magnetic recovery assembly is fixedly installed at the lower end of the shell. The present invention provides a filter connected to a strong magnet through a magnetic conductor, which can filter out iron-containing impurities and ordinary impurities in water.

Description

Technical Field

[0001] The invention relates to a magnetic filter, in particular to an industrial water filtering device. Background Art

[0002] In some power stations and chemical industry water pipes, since the water may come from lakes or rivers, various impurities are likely to exist in the water. Therefore, simple fences or finer filters are installed on these water supply pipes, but this cannot completely remove impurities in the water.

[0003] In the water supply of boilers in the power industry, in addition to removing various impurities and dissolved oxygen, it is also necessary to remove particulate impurities containing iron elements to avoid their impact on boilers and other equipment.

[0004] This part of iron-containing impurities is generally removed through magnetic filtration. This removal method easily causes the iron-containing particles to mix with other impurities on the filter, affecting the working efficiency of the magnetic filtration equipment. At the same time, the subsequent iron-containing particles and other impurities need to be separated during processing to prevent excessive metal elements from affecting their processing with impurities. Summary of the invention

[0005] The object of the present invention is to provide a magnetic filter which solves the above-mentioned problems.

[0006] A magnetic filter comprises a shell, wherein an electromagnet is arranged in the shell, the electromagnet is plugged into the shell from above, the electromagnet is plugged into a filter structure, a scraper assembly is arranged in the filter structure, a motor is arranged on the top of the scraper assembly, the motor drives the scraper assembly to clean the filter structure, the top of the filter structure is connected to the bottom of the top cover of the shell by an elastic rope, the bottom of the filter structure is pressed on a magnetic recovery assembly, and the magnetic recovery assembly is fixedly mounted on the lower end of the shell.

[0007] Preferably, a water inlet pipe and a water outlet pipe are respectively provided on the shell.

[0008] Preferably, a hanging platform is provided on the top of the electromagnet, and the hanging platform is located above the top cover of the shell.

[0009] Preferably, the filter structure includes a filter and a magnetic ring, the magnetic ring is fixedly installed on the outside of the filter, a connecting hole is provided on the magnetic ring, and the electromagnet is connected to the magnetic ring through friction.

[0010] Preferably, the filter screen is a steel wire mesh.

[0011] Preferably, the scraper assembly includes an intermediate rod, a connecting arm, a spring, a pad and a scraper, the top of the intermediate rod is fixedly connected to the output structure of the motor, the connecting arm is fixedly connected to both sides of the intermediate rod, the spring is installed on the connecting arm, the pad is slidably connected to the connecting arm, the two ends of the spring are respectively pressed against the intermediate rod and the pad, the scraper is fixedly installed on the pad and pressed against the filter structure under the elastic force of the spring.

[0012] Preferably, the magnetic recovery assembly comprises an upper tray and a lower tray, the upper tray is located inside the lower tray, and a sewage pipe penetrating the upper tray and the lower tray is provided inside the upper tray and the lower tray.

[0013] Preferably, the upper tray includes a fixed ring, a magnetic ring and a lubricating ring, the edge of the fixed ring slides in contact with the lower tray, the magnetic ring is fixedly installed between the fixed ring and the lubricating ring, the lubricating ring is slidably connected to the sewage pipe, and a contact switch is provided on the bottom surface of the lubricating ring, and the contact switch is electrically connected to the motor.

[0014] Preferably, the lower tray comprises a tray and a magnet, the tray is installed in the outer shell, the magnet is fixedly installed in the tray, and a vibration generator is provided on the tray.

[0015] The present invention has the following advantages:

[0016] 1. The present invention is provided with a filter screen connected to a strong magnetic field through a magnetic conductor, which can filter out iron-containing impurities and common impurities in water;

[0017] 2. The filter screen gradually becomes heavier as the filtration progresses, which will force the upper tray to fall and trigger the contact switch, causing the motor and vibration generator to start working, removing the impurities filtered on the filter screen and causing them to fall onto the upper tray;

[0018] 3. The magnetic ring can absorb the iron-containing particles in the impurities in the upper tray, helping to separate the iron-containing particles from ordinary mud. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall structural diagram of the present invention;

[0020] Figure 2 is a top view of the present invention;

[0021] Figure 3 yes Figure 2 Sectional structure diagram at inner AA;

[0022] Figure 4 yes Figure 3 A magnified view of the structure at inner B;

[0023] Figure 5 It is a schematic diagram of the internal structure of the present invention;

[0024] Figure 6 yes Figure 5 Enlarged view of the structure at inner C.

[0025] The markings in the accompanying drawings are:

[0026] 1. Shell; 11. Water inlet pipe; 12. Water outlet pipe;

[0027] 2. Electromagnet; 21. Hanging table;

[0028] 3. Filter structure; 31. Filter; 32. Magnetic ring;

[0029] 4. Scraper assembly; 41. Intermediate rod; 42. Connecting arm; 43. Spring; 44. Backing plate; 45. Scraper;

[0030] 5. Motor;

[0031] 6. Elastic rope;

[0032] 7. Magnetic recovery assembly; 71. Upper tray; 711. Fixing ring; 712. Magnetic ring; 713. Lubricating ring; 72. Lower tray; 721. Tray body; 722. Magnet; 723. Vibration generator;

[0033] 73. Sewage pipe. DETAILED DESCRIPTION

[0034] The specific implementation modes of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0035] like Figure 1-6 A magnetic filter is shown, comprising a shell 1, wherein an electromagnet 2 is provided in the shell 1, wherein the electromagnet 2 is plugged into the shell 1 from above, wherein the electromagnet 2 is plugged into a filter structure 3, wherein a scraper assembly 4 is provided in the filter structure 3, wherein a motor 5 is provided on the top of the scraper assembly 4, wherein the motor 5 drives the scraper assembly 4 to clean the filter structure 3, wherein the top of the filter structure 3 is connected to the bottom of the top cover of the shell 1 through an elastic rope 6, wherein the bottom of the filter structure 3 is pressed on a magnetic recovery assembly 7, wherein the magnetic recovery assembly 7 is fixedly mounted at the lower end of the shell 1, and the iron-containing particles and other impurities in the water are filtered through the provided filter structure 3.

[0036] In this embodiment, a water inlet pipe 11 and a water outlet pipe 12 are respectively provided on the outer shell 1. The water inlet pipe 11 is used to let water into the filter structure 3, and the water outlet pipe 12 is used to discharge water filtered by the filter structure 3. The water inlet pipe 11 and the motor 5 are controlled by a circuit. When the motor 5 is turned on, the water inlet pipe 11 no longer lets water in.

[0037] In this embodiment, a hanging platform 21 is provided on the top of the electromagnet 2, and the hanging platform 21 is located above the top cover of the shell 1. The hanging platform 21 can prevent the electromagnet 2 from being inserted too much into the shell 1 and keep the position of the electromagnet 2 unchanged. The electromagnet 2 uses a strong magnetic magnet of 12000-15000 Gauss.

[0038] In this embodiment, the filter structure 3 includes a filter 31 and a magnetic ring 32. The magnetic ring 32 is fixedly installed on the outside of the filter 31. A connecting hole is provided on the magnetic ring 32. The electromagnet 2 is connected to the magnetic ring 32 by friction. The incoming water is filtered through the filter 31, and the iron-containing particles and impurities therein can be blocked and filtered by the filter.

[0039] In this embodiment, the filter screen 31 is a steel wire mesh that is magnetically conductive and can easily absorb iron-containing particles.

[0040] In this embodiment, the scraper assembly 4 includes an intermediate rod 41, a connecting arm 42, a spring 43, a pad 44 and a scraper 45. The top of the intermediate rod 41 is fixedly connected to the output structure of the motor 5, the connecting arm 42 is fixedly connected to both sides of the intermediate rod 41, the spring 43 is installed on the connecting arm 42, the pad 44 is slidably connected to the connecting arm 42, the two ends of the spring 43 are respectively pressed on the intermediate rod 41 and the pad 44, the scraper 45 is fixedly installed on the pad 44 and pressed on the filter structure 3 under the elastic force of the spring 43, the pad 44 includes a circular pad for connecting the spring 43 and a support plate installed between the circular pad and the scraper 44, through the elastic force of the spring 43, the circular pad can be pressed to make the scraper 45 always keep in contact with the filter, thereby ensuring the cleaning quality of the filter by the scraper 45.

[0041] In this embodiment, the magnetic recovery component 7 includes an upper tray 71 and a lower tray 72. The upper tray 71 is located inside the lower tray 72. A sewage pipe 73 is provided inside the upper tray 71 and the lower tray 72 and passes through the two trays. After the iron-containing particles and impurities fall on the upper tray 72, these impurities can be removed by suction through the sewage pipe 73.

[0042] In this embodiment, the upper tray 71 includes a fixed ring 711, a magnetic ring 712 and a lubricating ring 713. The edge of the fixed ring 711 slides in contact with the lower tray 72. The magnetic ring 712 is fixedly installed between the fixed ring 711 and the lubricating ring 713. The lubricating ring 713 is slidably connected to the drain pipe 73. A contact switch is provided on the bottom surface of the lubricating ring 713. The contact switch is electrically connected to the motor 5. The lower tray 72 includes a tray body 721 and a magnet 722. The tray body 721 is installed in the housing 1. The magnet 722 is fixedly installed in the tray body 721. A vibration generator 723 is provided on the tray body 721. When the impurities attached to the filter 31 increase to a certain amount, the weight of the entire filter will increase, and the filter 31 will slowly fall until the upper tray 71 overcomes the repulsive force between the magnetic ring 712 and the magnet 722 under pressure and starts the contact switch. The contact switch will start the motor 5 and the vibration generator at the same time, and cut off the power to the electromagnet 2, so that the filter 31 is no longer magnetic. At this time, the impurities on the filter 31 are scraped off the filter 31 by the scraper 45 and fall into the upper tray. The iron-containing particles therein will be adsorbed onto the magnetic ring 712 again, and the remaining impurities will be sucked out by the drain pipe 73 under the action of vibration, and then the iron-containing particles will be removed finally, thereby completing the filtration of water and the separation of the filtrate.

[0043] Working principle: first, water is introduced into the filter structure 3 through the water inlet pipe 11. The water will be filtered by the filter 31 and impurities will be attached to the filter 31. Then, when the impurities attached to the filter 31 increase to a certain amount, the weight of the entire filter will increase, and the filter 31 will slowly fall until the upper tray 71 overcomes the repulsive force between the magnetic ring 712 and the magnet 722 under pressure and starts the contact switch. The contact switch will start the motor 5 and the vibration generator at the same time, and cut off the power to the electromagnet 2, so that the filter 31 is no longer magnetic. At this time, the impurities on the filter 31 are scraped off the filter 31 by the scraper 45 and fall into the upper tray. The iron-containing particles therein will be adsorbed onto the magnetic ring 712 again, and the remaining impurities will be sucked out by the sewage pipe 73 under the action of vibration. Finally, the iron-containing particles are removed to complete the filtration of water and the separation of the filtered material.

[0044] Based on the above, the present invention is provided with a filter screen connected to a strong magnet through a magnetic conductor, which can filter out iron-containing impurities and ordinary impurities in the water; as the filtering becomes heavier, the filter screen will press the upper tray to fall and trigger the contact switch, so that the motor and the vibration generator start working, remove the impurities filtered on the filter screen and make them fall onto the upper tray; the magnetic ring can absorb the iron-containing particles in the impurities in the upper tray, and help separate the iron-containing particles from ordinary mud.

[0045] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the inventive concept and technical solution of the present invention, or the inventive concept and technical solution are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A magnetic filter, characterized in that: The invention comprises a housing (1), wherein an electromagnet (2) is provided in the housing (1), wherein the electromagnet (2) is plugged into the housing (1) from above, wherein the electromagnet (2) is plugged into a filter structure (3), wherein a scraper assembly (4) is provided in the filter structure (3), wherein a motor (5) is provided at the top of the scraper assembly (4), wherein the motor (5) drives the scraper assembly (4) to clean the filter structure (3), wherein the top of the filter structure (3) is connected to the bottom of the top cover of the housing (1) via an elastic rope (6), wherein the bottom of the filter structure (3) is pressed onto a magnetic recovery assembly (7), and wherein the magnetic recovery assembly (7) is fixedly mounted at the lower end of the housing (1); The magnetic recovery assembly (7) comprises an upper tray (71) and a lower tray (72), wherein the upper tray (71) is located inside the lower tray (72), and a sewage discharge pipe (73) penetrating the upper tray (71) and the lower tray (72) is provided inside the upper tray (71) and the lower tray (72); The upper tray (71) comprises a fixed ring (711), a magnetic ring (712) and a lubricating ring (713); the edge of the fixed ring (711) is in sliding contact with the inside of the lower tray (72); the magnetic ring (712) is fixedly installed between the fixed ring (711) and the lubricating ring (713); the lubricating ring (713) is slidably connected to the sewage pipe (73); a contact switch is provided on the bottom surface of the lubricating ring (713); and the contact switch is electrically connected to the motor (5); The lower tray (72) comprises a tray body (721) and a magnet (722); the tray body (721) is installed in the housing (1); the magnet (722) is fixedly installed in the tray body (721); and a vibration generator (723) is provided on the tray body (721); The filter screen structure (3) comprises a filter screen (31) and a magnetic conductive ring (32), wherein the magnetic conductive ring (32) is fixedly mounted on the outside of the filter screen (31), a connecting hole is provided on the magnetic conductive ring (32), and the electromagnet (2) is connected to the magnetic conductive ring (32) by friction force; When the amount of impurities attached to the filter (31) increases to a certain level, the weight of the entire filter (31) increases, and the filter (31) slowly falls down until the upper tray (71) overcomes the repulsive force between the magnetic ring (712) and the magnet (722) under pressure and activates the contact switch. The contact switch activates the motor (5) and the vibration generator (723) at the same time, and cuts off the power to the electromagnet (2), so that the filter (31) no longer has magnetism.

2. A magnetic filter according to claim 1, characterized in that: The outer shell (1) is provided with a water inlet pipe (11) and a water outlet pipe (12) respectively.

3. A magnetic filter according to claim 1, characterized in that: A hanging platform (21) is provided on the top of the electromagnet (2), and the hanging platform (21) is located above the top cover of the housing (1).

4. A magnetic filter according to claim 1, characterized in that: The filter screen (31) is a steel wire screen.

5. A magnetic filter according to claim 1, characterized in that: The scraper assembly (4) comprises an intermediate rod (41), a connecting arm (42), a spring (43), a pad (44) and a scraper (45); the top of the intermediate rod (41) is fixedly connected to the output structure of the motor (5); the connecting arm (42) is fixedly connected to both sides of the intermediate rod (41); the spring (43) is mounted on the connecting arm (42); the pad (44) is slidably connected to the connecting arm (42); the two ends of the spring (43) are respectively pressed against the intermediate rod (41) and the pad (44); the scraper (45) is fixedly mounted on the pad (44) and pressed against the filter structure (3) under the elastic force of the spring (43).

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