CN216998056U

CN216998056U - Liquid deironing filter equipment

Info

Publication number: CN216998056U
Application number: CN202220981615.7U
Authority: CN
Inventors: 张�杰; 陈南海; 黄斌; 李明
Original assignee: Ningbo Ronbay Lithium Battery Material Co Ltd
Current assignee: Ningbo Ronbay Lithium Battery Material Co Ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-07-19
Anticipated expiration: 2032-04-25

Abstract

The utility model discloses a liquid deironing and filtering device, which comprises: a main body having a cavity provided with a water inlet and a water outlet; the filter screen is arranged in the cavity and used for filtering between the water inlet and the water outlet; the sleeve pipe extends into the cavity, and a magnetic rod is arranged in the sleeve pipe. In this liquid deironing filter equipment, when using, correspond the pipeline with its access in, water enters into the cavity, filters by the filter screen in, and adsorbs impurity by the bar magnet in the cover pipe to make can carry out deironing and filtration simultaneously. In this liquid deironing filter equipment, because set up the filter screen simultaneously in the cavity and the sleeve pipe that has the bar magnet, so can realize simultaneously to the deironing filter effect of magnetism and non-magnetic foreign matter, reach saving equipment input and cost of labor. To sum up, this liquid deironing filter equipment can solve the problem of present filter equipment function singleness effectively.

Description

Liquid deironing filter equipment

Technical Field

The utility model relates to the technical field of liquid filtration, in particular to a liquid deironing and filtering device.

Background

In the preparation and production process of the ternary precursor, the control requirements on foreign matters in production raw materials are extremely strict, the types of the foreign matters are divided into magnetic foreign matters (which can be adsorbed by a magnet) and non-magnetic solid foreign matters, production material conveying generally adopts a conveying pump and a pipeline for conveying, the pipeline generally adopts non-metal materials as a main part, and the foreign matter indexes of all process posts are strictly controlled in the production and conveying processes, so the foreign matters are required to be controlled before/after each process, the method adopted at present is a series combination form of a Y-shaped filter and a pipeline iron remover, the material is firstly filtered and removed by the Y-shaped filter to remove the non-magnetic particulate matters, then the magnetic foreign matters are adsorbed and removed by the pipeline iron remover, and the Y-shaped filter and the pipeline iron remover are periodically cleaned to ensure the effect of filtering and removing iron, and simultaneously, the flow of the ternary precursor production line is long, the production process is many, and company produces the line quantity many, so Y type filter and pipeline de-ironing separator are huge on producing the line, need dispose special personnel every day and carry out the regular clear-up, cause company's equipment to drop into and the cost of labor increases.

Y type filter includes the device main part, the inner chamber, filter the cavity, the filter screen, the valve gap, packing ring etc. and the inside intermediate position of main part is provided with the inner chamber, and the both ends of inner chamber set up material delivery port and water inlet respectively, and the intermediate position of inner chamber bottom sets up filter the cavity, and filters the bottom of cavity and install the valve gap packing ring, and the bottom of valve gap packing ring is provided with the plug, and the externally mounted of filter the cavity has the heelpiece, and the bottom of heelpiece can be dismantled with the top of valve gap packing ring and be connected, the top installation screw of heelpiece. The Y-shaped filter process is that liquid enters from a water inlet of the inner cavity, flows through the filter screen in the filter chamber, then flows out from a water outlet of the cavity, and the filter screen is used for removing the filter effect. The filter structure can refer to Chinese patent with publication number CN 210964220U.

The pipeline iron remover comprises a cavity, a sleeve, a magnetic rod, a sealing element, a fastening movable bolt, a fixing plate, a handle, a positioning bolt and the like; the cavity both ends set up material delivery port and water inlet respectively, set up sleeve pipe and bar magnet in the middle of the cavity, the sleeve pipe bottom is sealed, top and sleeve pipe apron for the lower part sealing member adopt fastening movable bolt to be connected, form the seal chamber that a liquid flowed through, the bar magnet of packing into in the sleeve pipe, the bar magnet top is fixed with the fixed plate, install the handle on the fixed plate, realize fixed connection and positioning action with positioning bolt between bar magnet fixed plate and the sleeve pipe, pipeline de-ironing separator deironing flow does: liquid gets into the cavity from the water inlet, in the cavity with the outer sleeve pipe contact of bar magnet, through the magnetic force of bar magnet, but adsorb the magnetic foreign matter at the sleeve pipe surface, through the adsorption of a certain period of time back, with the whole clearance of taking out such as sleeve pipe, bar magnet fixed plate, take out the separation with bar magnet and sleeve pipe during the clearance, realize the purpose of quick clearance, will pull back bar magnet, the intraductal installation that resumes after the clearance is accomplished. The structure of the pipeline iron remover can refer to Chinese patent with publication number CN 205599326U.

In summary, how to effectively solve the problem of single function of the existing filtering device is a problem that those skilled in the art are urgently required to solve.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a liquid deironing filter device, which can effectively solve the problem of single function of the existing filter device.

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

a liquid deironing filter equipment includes:

a main body having a cavity provided with a water inlet and a water outlet;

the filter screen is arranged in the cavity and used for filtering between the water inlet and the water outlet;

the sleeve pipe stretches into the cavity, and a magnetic rod is arranged in the sleeve pipe.

In this liquid deironing filter equipment, when using, correspond the pipeline with its access in, water enters into the cavity, filters by the filter screen in, and adsorbs impurity by the bar magnet in the cover pipe to make can carry out deironing and filtration simultaneously. In this liquid deironing filter equipment, because set up the filter screen simultaneously in the cavity and the sleeve pipe that has the bar magnet, so can realize simultaneously to the deironing filter effect of magnetism and non-magnetic foreign matter, reach saving equipment input and cost of labor. To sum up, this liquid deironing filter equipment can solve the problem of present filter equipment function singleness effectively.

Preferably, a taking and placing opening is formed in the side face of the cavity, a cover is arranged on the side face of the cavity, the sleeve and the cover are relatively fixed, a placing opening is formed in the taking and placing opening of the filter screen, the sleeve extends into the filter screen, and the placing opening edge of the filter screen abuts against the inner side of the cover.

Preferably, a gap is formed between one side of the filter screen close to the water outlet and the cavity wall on the corresponding side of the cavity.

Preferably, the filter screen is cylindric and the nozzle does place the opening, the filter screen towards the water inlet one side has the water guide opening.

Preferably, the cavity is the cylinder type and one end opening opens and sets up in order to form get and put the mouth, the filter screen is relative the cavity eccentric settings, just the filter screen towards one side of water inlet with correspond one side the chamber wall laminating contact of cavity.

Preferably, the bottom of the filter screen is supported by a bottom support frame so that the bottom of the filter screen is arranged with the bottom of the cavity in a clearance mode.

Preferably, the bottom support frame is in sliding fit with the cavity along the axial direction, and a fixing part for fixing the filter screen is arranged on one side, close to the taking and placing opening, of the bottom support frame.

Preferably, the inner side of the cover part is provided with a plurality of sleeves, and the cover part is provided with a through hole penetrating to the tube cavity of the sleeve, so that the magnetic rod can pass through the cover part and enter the sleeve.

Preferably, the magnetic rod in each sleeve is fixedly connected with the upper plate, and the upper plate is detachably and fixedly connected with the cover part.

Preferably, a handle portion is provided on the upper plate.

Preferably, the bottom of the cavity is provided with a vent.

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 the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a liquid deironing and filtering apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the liquid deironing filter device provided in FIG. 1 along the direction A-A;

FIG. 3 is a schematic view of a liquid deferrization filtering apparatus according to an embodiment of the present invention, which is shown in an expanded configuration along a square-drawing direction;

fig. 4 is a schematic top view of a liquid deferrization filtering apparatus according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a filter screen and a bracket of the liquid deferrization filtering apparatus according to the embodiment of the present invention.

The drawings are numbered as follows:

the filter screen comprises a main body 1, a filter screen 2, a sleeve 3, a magnetic rod 4, a handle part 5, a positioning bolt 6, a positioning nut 7, a bottom support frame 8, a vent 9, a sealing nut 10, a sealing ring 11, a sealing bolt 12, a cover 13, an upper plate 14 and a filter screen handle 15.

Detailed Description

The embodiment of the utility model discloses a liquid deironing and filtering device, which effectively solves the problem of single function of the conventional filtering device.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-5, fig. 1 is a schematic structural diagram of a liquid deironing filter device according to an embodiment of the present invention; FIG. 2 is a schematic view of the structure of the liquid deironing filter device provided in FIG. 1 along the direction A-A; fig. 3 is a schematic view of a structure of the liquid deferrization filtering apparatus provided by the embodiment of the present invention, which is expanded along the square-taking opening; fig. 4 is a schematic top view of a liquid deferrization filtering apparatus according to an embodiment of the present invention;

In a specific embodiment, the present embodiment provides a liquid deironing filter device, and specifically, the liquid deironing filter device includes a main body 1, a filter screen 2, a sleeve 3 and a magnetic rod 4.

Wherein be formed with the cavity on the main part 1 to as the filter chamber, be provided with water inlet and delivery port on the cavity, water inlet and delivery port do not require relative setting, also can stagger the setting, perhaps the orientation direction is different again so that rivers direction wherein is different. Wherein the water inlet is leading-in external water to the cavity, and wherein the water outlet is leading out the water that filters in the cavity to outside the cavity.

Wherein filter screen 2 sets up in the cavity to filter between water inlet and delivery port, so that the water inlet is led water and can be followed the water inlet of filter screen 2 and passed filter screen 2, then from filter screen 2 play water side outflow, then flow from the delivery port again. The filter screen 2 is used for filtering large particles, and may be used for filtering by impurity adsorption or the like. However, it should be ensured that the filter screen 2 can separate the chamber into an inlet chamber having an inlet and an outlet chamber having an outlet, so that water in the inlet chamber can only enter the outlet chamber after passing through the filter screen 2.

Wherein sleeve pipe 3 stretch into extremely in the cavity, and be provided with bar magnet 4 in the sleeve pipe 3 to make bar magnet 4 attract the iron in the cavity, so that iron can adsorb on sleeve pipe 3 surface. Wherein the sleeve 3 forms a sealing protection for the magnetic rod 4, and avoids the contact of the magnetic rod 4 and water. It should be noted that the sleeve 3 may be located in the water inlet cavity or the water outlet cavity, and the specific setting position may be set as required.

In this liquid deironing filter equipment, when using, in corresponding the pipeline with its access, water enters into the cavity, filters by filter screen 2 in, and adsorbs impurity by the bar magnet 4 in the sleeve pipe 3 to make can carry out deironing and filtration simultaneously. In this liquid deironing filter equipment, because set up filter screen 2 simultaneously in the cavity and sleeve pipe 3 that has bar magnet 4, so can realize simultaneously to the deironing filter effect of magnetism and non-magnetic foreign matter, reach saving equipment input and cost of labor. To sum up, this liquid deironing filter equipment can solve the problem of present filter equipment function singleness effectively.

Further, in order to conveniently pick and place the sleeve 3 therein for cleaning, it is preferable that a pick and place opening is opened on a side surface of the cavity and a cover 13 is provided, so that the pick and place opening is closed by the cover 13. As shown in fig. 3, the sleeve 3 is fixed relative to the cover 13, so that when the cover 13 is removed, the sleeve 3 can be removed. To facilitate cleaning of the casing 3.

Wherein in order to better avoid the impurities from flowing out of the water outlet, the sleeve 3 is preferably positioned in the water inlet cavity, so that when the sleeve 3 absorbs the iron and is gathered into large particles, even if the sleeve is separated from the iron, the iron is further intercepted by the filter screen 2, so that the iron cannot cross the filter screen 2. Further, for the convenience of setting, can make filter screen 2 wherein get to put mouthful department and form and place the opening in order to be used for sleeve pipe 3 to stretch into to filter screen 2 in, filter screen 2 place the opening along with lid 13 inboard offsets to through lid 13 with filter screen 2 place the opening along offsetting, in order to realize sealed, avoid placing the opening part, intake antrum and play water cavity communicate with each other.

Further, the preferred one side that wherein filter screen 2 is close to the delivery port of this department with the cavity corresponds the clearance setting between the chamber wall of one side to make the filter screen be close to one side of delivery port and can both form effectual filtration, if the play water side of filter screen 2 offsets with the chamber wall, then can't filter, and form the clearance at the play water side of filter screen and chamber wall, then can guarantee that filter screen 2 at this department carries out effectual filtration. Through the mode, the filtering area can be effectively ensured, and the filtering effect is effectively ensured.

As described above, as shown in fig. 2, the filter screen 2 may be cylindrical and the barrel opening is the above-mentioned placing opening, wherein one side of the filter screen facing the water inlet is provided with a water guiding opening, so that the water guiding opening is aligned with the water inlet, and it is ensured that the liquid flowing out from the water inlet directly enters the water guiding opening to enter the barrel of the filter screen. The cylindrical filter screen 2 is adopted, so that the forming is convenient, and the liquid can flow in a plurality of directions around the filter screen to be filtered. The filter screen 2 may also be a flat plate structure, so that the peripheral edges are connected with the peripheral corresponding chamber walls.

After the cylindrical filter screen is arranged, the cavity can be a cubic cavity or a cylindrical cavity, and when a gap is formed between the water outlet side of the filter screen 2 and the corresponding cavity wall, the volume of the cavity can be large enough, so that when the filter screen 2 is arranged to be deviated to the water inlet, a corresponding gap is naturally formed on the water outlet side of the filter screen 2. In consideration of the adoption of the cylindrical filter screen, in order to better connect the water outlet with the water guide opening, the filter screen 2 can be deformed on one side of the water guide opening, so that the edge of the water guide opening surrounds the edge of the water inlet, and the edge of the water guide opening is tightly attached to the wall of the cavity body; the water inlet can also be provided with a water guide pipe to be butted with the water guide opening.

Further, it is preferred here that cavity be the cylinder type and one end opening opens the setting in order to form and get and put the mouth, as shown in the attached drawing, filter screen 2 is relative cavity off-centre setting, and the axis of filter screen 2 and the axis parallel arrangement of cavity promptly, and filter screen 2 is partial to one side of water inlet. Wherein the filter screen 2 faces one side of water inlet and corresponds the chamber wall laminating contact of one side cavity, and the mouth edge of water guide opening is laminated on the chamber wall at least promptly to guarantee sealed linking.

Furthermore, the bottom of the filter screen 2 is preferably selected, namely, the side away from the placing opening is supported by the bottom supporting frame 8, so that the bottom of the filter screen 2 is in clearance arrangement with the bottom of the cavity, and the bottom of the filter screen can also play a role in filtering. It should be noted that, of course, the bottom of the filter screen 2 may also be directly abutted against the bottom wall of the cavity, but the filtering efficiency is reduced. It should be noted that, referring to fig. 5, the filter screen is generally fixed and constrained by a support frame to form a cylinder, and the bottom support frame 8 in the support frame can ensure a gap between the filter screen 2 and the bottom of the cavity, and simultaneously ensure the eccentric arrangement of the filter screen 2.

For better arrangement of the bottom support frame 8, the bottom support frame 8 is preferably in sliding fit with the cavity along the axial direction, and one side of the bottom support frame 8, which is close to the taking and placing opening, is provided with a fixing part for fixing the filter screen 2. With the cooperation through between bottom sprag frame 8 and the cavity, can restrict bottom sprag frame 8 effectively to guarantee that fixed filter screen 2 on the bottom sprag frame 8, relative cavity eccentric settings guarantees effectively moreover that filter screen 2 leans on one side to the water inlet and corresponds the setting of closely laminating of one side chamber wall. At this moment, the bottom support frame 8 plays a role in positioning, wherein the bottom support frame 8 preferably adopts a circular plate body, and one side of the circular plate body, which is close to the taking and placing port, is provided with a clamping clip so as to fix the filter screen.

Further, in order to clean the inside of the cavity, it is preferable that a plurality of sleeves 3 are disposed on the inner side of the cover 13, wherein the cover 13 is opened with a through hole penetrating to the tube cavity of the sleeve 3, so that the magnetic rod 4 can penetrate through the cover 13 and enter the sleeve 3. Wherein, in order to facilitate the simultaneous removal of each magnetic rod 4, it is preferable that an upper plate 14 is further included, each of the magnetic rods 4 in the sleeve 3 is fixedly connected with the upper plate 14, and the upper plate 14 is detachably and fixedly connected with the cover 13. Therefore, after the upper plate 14 is disconnected from the cover 13, when the upper plate 14 is taken out, all the magnetic rods 4 can be driven to be separated, and the operation of taking out the magnetic rods 4 is convenient and simple. Wherein the upper plate 14 and the cover 13 are preferably connected by means of bolts or screws. Wherein the upper plate 14 is provided with a handle portion 5 for convenience of lifting the upper plate 14, so that the respective magnetic rods 4 can be lifted by lifting the handle portion 5 therein. Correspondingly, for example, the lid 13 and the body 1 are also preferably connected by bolts, wherein the lid 13 and the body 1 are preferably connected by a sealing ring 11 to ensure a sealing effect.

Further, in order to clean the inside of the cavity conveniently, the bottom of the cavity is preferably provided with a vent 9, so that when internal impurities need to be removed, the waterproof port can be opened, water in the cavity is drained, and further cleaning is facilitated.

In one embodiment, the present embodiment provides a liquid deferrization filtering apparatus, which includes a main body 1, a filter screen 2, a sleeve 3, a magnetic rod 4, a handle 5, a sealing ring 11, a bottom support 8, a filter screen handle 15, a positioning bolt 6 and a positioning nut 7, a sealing bolt 12 and a sealing nut 10, a vent 9, a cover 13, and an upper plate 14; the main body is a cavity with a circular middle part, and two ends of the main body are respectively butted with a water inlet and a water outlet of a medium through flanges; an eccentric filter screen 2 is placed in the cavity, the filter screen 2 is arranged to be in contact with a feed inlet of the cavity 2, the bottom of the filter screen 2 is supported and positioned by a bottom support frame 8, so that a gap is formed between the filter screen 2 and the cavity, the top of the filter screen 2 is in contact with the lower part of a cover part 13, and a filter screen handle 15 is arranged in the filter screen 2 and used for taking out the filter screen 2 when the filter screen 2 is cleaned; the upper part of the cavity is contacted with the lower part of the cover part 13, and an O-shaped sealing ring 11 is arranged between the cavity and the cover part 13; the cavity and the cover part 13 are connected in a sealing way through a sealing bolt 12 and a nut 10; the bottom of the cavity is provided with a vent 9 connected with a vent pipeline; the magnetic rods 4 are inserted into the sleeves 3, each sleeve 3 is fixed on the inner side of the cover part and is fixedly connected with the cover part 13 in a welding mode, an integral forming connection mode, a screw connection mode and the like, and the cover part 13 is provided with an opening for inserting the magnetic rods 4 into the sleeves 3; the top of each magnetic rod 4 is connected to an upper plate 14, and the upper plate 14 is provided with a handle part 5 for facilitating the carrying of the list; the lid 13 and the upper plate 14 are positioned and fixed by the positioning bolt 6 and the nut 7.

Two ends of the cavity of the main body are respectively connected with the medium inlet and the medium outlet, the filter screen 2 is placed in the cavity, and the bottom of the cavity is provided with a vent 9 which is connected with a vent pipe through a valve and a pipeline; the top of the cavity is in contact with the lower part of the sleeve 3, and the top of the cavity is connected with the lower part of the cover 13 by a sealing bolt 12 and a nut 10.

The filter screen 2 is placed in the main body cavity, the inlet of the filter screen 2 is in contact with the inlet of the cavity, the filter medium required for use enters the inlet of the filter screen 2 from the inlet of the main body, the filter screen is cylindrical, and liquid passes through the filter screen, so that the filtering effect is realized.

2 imports of filter screen are the little eccentric circle of main part cavity, and 2 bottoms of filter screen set up bottom sprag frame 8, through bottom sprag frame 8 and cavity internal contact, 2 tops of filter screen contact with 13 lower parts of lid, and 1 bottom in the cavity is placed with bottom sprag frame 8 to 2 bottoms of filter screen reach the filtration sealed effect, set up a filter screen handle 15 in the middle of the filter screen 2, when being convenient for clear up filter screen 2, take out filter screen 2.

Sleeve pipe 3 is isolated liquid medium and bar magnet 4, adsorbs the magnetism thing on sleeve pipe 3 surface, takes out the foreign matter that the back can be cleared up fast and adsorb on sleeve pipe 3 surface with bar magnet 4 from sleeve pipe 3 during the clearance, and sleeve pipe 3 lower part and cavity upper portion contact set up O type sealing washer 11 in the middle of the two contacts, and sleeve pipe 3 upper portion and bar magnet 4 contact, and bar magnet 4 is placed in sleeve pipe 3, and bar magnet 4 and sleeve pipe are fixed a position fixedly through positioning bolt 12 and nut 10.

The magnetic rod 4 is used for adsorbing magnetic foreign matters in a liquid medium, the magnetic force of the magnetic rod 4 adsorbs the foreign matters in the liquid to the surface of the sleeve 3, the lower part of the magnetic rod 4 is in contact with the sleeve 3, the upper part of the magnetic rod 4 is provided with an upper plate 14 to be connected with the hand-held handle part 5, and the magnetic rod 4 and the sleeve 3 are positioned and fixed through a positioning bolt 12 and a nut 10.

When the cavity emptying port 9 is used for cleaning the iron removal filter, the medium in the cavity is emptied, and the emptying port 9 is connected with an emptying pipeline.

Handle portion 5 takes out bar magnet 4 from the cavity for clearing up bar magnet 4, and handle portion 5 welds in upper plate 14 upper surface, and modes such as joint, screw connection, welding carry out fixed connection between bar magnet 4 and the upper plate 14.

In summary, the liquid deironing and filtering device provided by the utility model is based on various characteristics of the existing pipeline deironing device and the Y-shaped filter, realizes function optimization of two-in-one, overcomes the defects that the existing pipeline deironing device can only deironing, the Y-shaped filter can only filter a single function, the Y-shaped filter has a small filtering area and potential safety hazard risk in cleaning operation, realizes the effect of filtering and deironing liquid media at the same time, simplifies the process flow, reduces the equipment investment cost, the manual cleaning cost and the manual cleaning frequency, and improves the working efficiency, thereby creating a value purpose for enterprises.

The utility model provides a liquid deironing filter equipment, the use medium wide range can apply to on various liquid medium, also can be used to there being corrosive liquid like various salt materials in the production, and the mountable also can be used to installation environment such as equipment on the pipeline, the temperature requirement: 0-40 ℃ (high temperature will affect the magnetic field intensity of the magnet); in the using process, the material of the device, the magnetic field intensity of iron removal and the precision of the filter screen can be selected according to production requirements so as to meet the requirements of different working conditions; an automatic monitoring device can be added on the device to realize automatic control in the using process; in conclusion, the liquid deironing and filtering device can be widely popularized and used in various industries such as new energy, lithium batteries, food, chemical engineering and the like.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a liquid deironing filter equipment which characterized in that includes:

a main body having a cavity provided with a water inlet and a water outlet;

the sleeve pipe extends into the cavity, and a magnetic rod is arranged in the sleeve pipe.

2. The device for removing iron and filtering out liquid according to claim 1, wherein a pick-and-place opening is opened on a side surface of the cavity and a cover is provided, the sleeve and the cover are relatively fixed, a placing opening is formed at the pick-and-place opening of the filter screen for the sleeve to extend into the filter screen, and the placing opening edge of the filter screen is abutted against the inner side of the cover.

3. The device for removing iron and filtering out liquid according to claim 2, wherein a gap is formed between one side of the filter screen close to the water outlet and the wall of the cavity on the corresponding side of the cavity.

4. The deironing and filtering device for the liquid according to claim 3, wherein the filter screen is cylindrical and has a cylindrical opening as the placement opening, and a water guide opening is arranged on one side of the filter screen facing the water inlet.

5. The device for removing iron and filtering out liquid according to claim 4, wherein the cavity is cylindrical and has an open end at one end to form the pick-and-place opening, the filter screen is eccentrically arranged relative to the cavity, and one side of the filter screen facing the water inlet is in contact with the wall of the cavity corresponding to the other side of the cavity in a fitting manner.

6. The liquid deferrization filtering device according to claim 5, characterized in that the bottom of the filtering net is supported by a bottom support frame to make the bottom and the bottom of the cavity arranged in a gap.

7. The device for removing iron and filtering out liquid as claimed in claim 6, wherein the bottom support frame is in sliding fit with the cavity along the axial direction, and a fixing portion for fixing the filter screen is provided on one side of the bottom support frame close to the pick-and-place opening.

8. The device for removing iron and filtering out liquid as claimed in any one of claims 2 to 7, wherein a plurality of said sleeves are arranged on the inner side of said cover, and said cover is provided with through holes penetrating to the tube cavities of said sleeves, so that said magnetic rods can pass through the cover and enter into said sleeves.

9. The device for removing iron and filtering out liquid as claimed in claim 8, further comprising an upper plate, wherein the magnetic rods in the sleeves are fixedly connected with the upper plate, and the upper plate is detachably and fixedly connected with the cover part.

10. The liquid iron-removing and filtering device according to claim 9, wherein said upper plate is provided with a handle portion.

11. The liquid iron-removing and filtering device according to any one of claims 2 to 7, wherein a vent is arranged at the bottom of the cavity.