Special magnetic ceramic plate for dehydration of fine-fraction ferromagnetic minerals

Abstract

The utility model relates to a special magnetic ceramic plate for dehydration of fine-fraction ferromagnetic minerals, which comprises a base plate, a plurality of raised ridges are arranged on both sides of the base plate, the raised ridges are arranged to form a plurality of U-shaped cavities and a plurality of water filtering flow channels, the U-shaped cavities are used for accommodating magnetic balls, slurry-sinking type threaded sealing ports are arranged at openings of the U-shaped cavities, and the slurry-sinking type threaded sealing ports are used for sealing the water filtering flow channels of the water filtering flow channels of the water filtering flow channels of the water filtering flow channels of the water filtering flow channels of the water filtering flow channels of the water filtering flow channels. The magnetic ball is assembled and disassembled through the slurry settling type threaded sealing opening. According to the magnetic ceramic plate, the structure of the inner cavity of the ceramic plate is changed, the magnetic ball containing cavities and the water filtering flow channels which are arranged in a crossed mode are formed in the inner cavity of the ceramic plate, the magnetic balls enable the ceramic plate to have magnetic attraction, and the water filtering flow channels guarantee the drainage effect; mineral is subjected to magnetic agglomeration under the action of magnetic force and can be quickly adsorbed on the ceramic plate, the adsorption effect is good, the thickness of a filter cake and the water content of the filter cake are both improved, the blocking rate of the ceramic plate is greatly reduced, and the demineralization efficiency and the productivity of the ceramic filter are both greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic filter dehydration, in particular to a special magnetic ceramic plate for dehydrating fine-grained strong magnetic minerals. Background Art

[0002] Ceramic filter is a common equipment for mineral dehydration. The dehydration principle of ceramic filter: under the vacuum pump, the inner cavity of the ceramic filter plate has negative pressure, and the solid particles in the slurry are adsorbed and retained on the surface of the ceramic filter plate to form a filter cake, while the liquid in the slurry passes through the micropores on the surface of the ceramic filter plate, enters the inner cavity of the ceramic filter plate, and is discharged through the flow channel, thereby achieving the purpose of solid-liquid separation. Figure 1 When dehydrating fine-grained (-325 mesh accounts for more than 90%) and ultra-fine-grained (-400 mesh accounts for more than 90%) strongly magnetic minerals, the ceramic filter plate pores are often clogged, adsorption is difficult, the filter cake is thin, and the filter cake has high moisture content, resulting in low dehydration capacity and affecting the normal operation of the entire production line.

[0003] Solving the above problems has always been a difficult problem that technicians in the field need to overcome. They have also proposed a variety of methods and devices to improve the dehydration efficiency of fine-grained minerals. For example, CN117205664A discloses a method for dehydrating fine-grained concentrate slurry with high dehydration efficiency, which is to add a flocculant to the fine-grained slurry to flocculate the fine-grained concentrate into large granular concentrate, and then use a filter to dehydrate; CN113350891A discloses a ceramic filter to treat ultra-fine slurry dehydration process and device, including a slurry storage tank, a pressure pump, a classifier, a ceramic filter, and a dosing machine. A thickener and a water filter tank, a feed port is provided on the top of the slurry storage tank, a discharge port is provided on the bottom of the slurry storage tank, the booster pump is connected to the slurry storage tank and is located on the top of the slurry storage tank, a stirring mechanism is also provided on the slurry storage tank, the discharge port is connected to a classifier, a coarse-grained slurry discharge port and a fine-grained slurry discharge port are provided on the classifier, the coarse-grained slurry discharge port is connected to a ceramic filter, the fine-grained slurry discharge port is connected to a dosing thickener, the dosing thickener is connected to a ceramic filter, and a liquid guide pipe is provided between the ceramic filter and the dosing thickener and the water filter tank.

[0004] However, the existing solutions mainly adjust the process methods and the setting of supporting equipment of ceramic filters, but there is no solution to improve the ceramic filter plate itself. Therefore, this application will start with the transformation of the structure of the ceramic filter plate itself, and propose a special magnetic ceramic plate for dehydrating fine-grained strong magnetic minerals to improve the dehydration effect of fine-grained strong magnetic minerals. Utility Model Content

[0005] The utility model provides a special magnetic ceramic plate for dehydrating fine-grained strong magnetic minerals.

[0006] The specific technical scheme of the utility model is: a magnetic ceramic plate specially used for dehydrating fine-grained strong magnetic minerals, comprising a base plate, both sides of which are provided with a plurality of raised ridges, the raised ridges are arranged to form a plurality of U-shaped cavities and a plurality of water filtration channels, the U-shaped cavity is used to accommodate a magnetic ball, and a slurry-sinking threaded sealing port is also provided at the opening of the U-shaped cavity, and the magnetic ball is loaded and unloaded through the slurry-sinking threaded sealing port.

[0007] Furthermore, preferably, a water filtering channel is provided between two adjacent U-shaped cavities.

[0008] Furthermore, preferably, a plurality of U-shaped cavities are symmetrically arranged along the central axis, and a first U-shaped cavity, a second U-shaped cavity, and a third U-shaped cavity are arranged in sequence from the central axis to both sides, a second water filtration channel is arranged between the first U-shaped cavity and the second U-shaped cavity, and a third water filtration channel is arranged between the second U-shaped cavity and the third U-shaped cavity.

[0009] Further, preferably, the water filtering channel also includes a first water filtering channel and a fourth water filtering channel which are symmetrically arranged along the central axis.

[0010] Furthermore, preferably, the magnetic ball is a neodymium iron boron permanent magnet magnetic ball.

[0011] Further, preferably, the magnetic field strength of the magnetic ball is 160mT, 220mT, 350mT or 500mT.

[0012] Furthermore, preferably, the diameter of the magnetic ball is 4 mm.

[0013] Further, preferably, the distance between the raised ridges forming the U-shaped cavity is 3 mm.

[0014] Furthermore, preferably, the grout-type threaded sealing port is sealed with a countersunk screw.

[0015] The beneficial effects of the utility model are as follows: the magnetic ceramic plate proposed by the utility model forms a plurality of cross-arranged magnetic ball accommodating cavities and water filter channels in the inner cavity of the ceramic plate by changing the inner cavity structure of the ceramic plate, the magnetic balls give the ceramic plate magnetic attraction, and the water filter channels ensure the drainage effect, and when dehydrating fine-grained strong magnetic minerals, the minerals undergo magnetic agglomeration under the action of magnetic force and can be quickly adsorbed on the ceramic plate with good adsorption effect, the filter cake thickness and filter cake moisture are both improved, the ceramic plate blockage rate is greatly reduced, and the demineralization efficiency and production capacity of the ceramic filter are greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the inner cavity structure of an existing ceramic plate;

[0017] Figure 2 This is a schematic diagram of the inner cavity structure of a magnetic ceramic plate specially used for dehydrating fine-grained strong magnetic minerals according to an embodiment of the present invention;

[0018] Figure 3 for Figure 2 Schematic diagram of the inner cavity structure after filling with magnetic balls;

[0019] Figure 4 for Figure 2 AA section view;

[0020] In the figure: 1-substrate, 2-raised ridge, 301-first U-shaped cavity, 302-second U-shaped cavity, 303-third U-shaped cavity, 401-first water filtration channel, 402-second water filtration channel, 403-third water filtration channel, 404-fourth water filtration channel, 5-magnetic ball, 6-slurry-type threaded sealing port, 7-spacing. DETAILED DESCRIPTION

[0021] In order to make the technical problems and technical solutions solved by the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figures 2 to 4As shown, a magnetic ceramic plate specially used for dehydrating fine-grained strong magnetic minerals includes a base plate 1, and a plurality of raised ridges 2 are arranged on both sides of the base. The raised ridges 2 are arranged to form a plurality of U-shaped cavities and a plurality of water filtration channels. The U-shaped cavity is used to accommodate a magnetic ball 5. A slurry-sinking threaded sealing port 6 is also provided at the opening of the U-shaped cavity, and the magnetic ball 5 is loaded and unloaded through the slurry-sinking threaded sealing port 6.

[0025] The magnetic ceramic plate proposed in this application is an improvement on the inner cavity structure of the existing ceramic plate (such as Figure 1 ) is modified by increasing the number of raised ridges 2 and changing the spacing between the raised ridges 2, so that several raised ridges 2 are arranged to form several U-shaped cavities and several water filtering channels, and then magnetic balls 5 are filled into the U-shaped cavities to form a stable magnetic field on the surface of the ceramic plate. When the ceramic filter is dehydrating, fine-grained strong magnetic minerals will be quickly adsorbed on the surface of the ceramic plate (the surface is connected to the base plate 1 through the raised ridges 2) under the action of vacuum and magnetic force, and the demineralization efficiency and production capacity of the ceramic filter are greatly improved.

[0026] In this process, under the magnetic field attraction of the magnetic ball 5, fine-grained strong magnetic mineral particles will undergo magnetic agglomeration. The agglomerated mineral particles will become larger, and the solid particles will be more easily retained on the surface of the ceramic plate. This can not only improve the adsorption effect, increase the thickness of the filter cake, and reduce the moisture content of the filter cake, but also reduce the clogging rate of the ceramic plate surface and extend the cleaning time of the ceramic plate.

[0027] The present application also fully considers the drainage problem, and reserves a number of water filtering channels to ensure that the liquid in the slurry is quickly discharged and the dehydration efficiency of the ceramic machine is ensured. At the same time, a slurry-sinking threaded sealing port 6 is provided at the opening of the U-shaped cavity to facilitate the loading and unloading of the magnetic ball 5 and also facilitate the recycling of the magnetic ball 5.

[0028] like Figure 2 Figure 3 As shown, several U-shaped cavities are symmetrically arranged along the central axis, and the first U-shaped cavity 301, the second U-shaped cavity 302, and the third U-shaped cavity 303 are arranged in sequence from the central axis to both sides, and a water filtering channel is arranged between two adjacent U-shaped cavities to ensure that the cavity area accommodating the magnetic ball 5 has sufficient drainage space. Specifically, a second water filtering channel 402 is arranged between the first U-shaped cavity 301 and the second U-shaped cavity 302, and a third water filtering channel 403 is arranged between the second U-shaped cavity 302 and the third U-shaped cavity 303. At the same time, the first water filtering channel 401 and the fourth water filtering channel 404 are symmetrically arranged along the central axis to further improve the drainage effect of the entire ceramic plate.

[0029] As mentioned above, the magnetic ball 5 is made of a neodymium iron boron permanent magnet, and the magnetic field strength can be 160mT, 220mT, 350mT or 500mT, and the diameter is 4mm. To match the size of the magnetic ball 5, the spacing 7 of the raised ridges 2 surrounding the U-shaped cavity can be set to 3mm, which can ensure that the magnetic ball 5 is surrounded in the U-shaped cavity and the drainage effect can be ensured.

[0030] The slurry-sinking thread sealing port 6 is sealed with a countersunk screw, which is convenient for disassembly and assembly.

[0031] The present invention is described in detail above through specific and preferred embodiments, but those skilled in the art should understand that the present invention is not limited to the embodiments described above, and any modifications, equivalent substitutions, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A magnetic ceramic plate specially used for dehydrating fine-grained strong magnetic minerals, comprising a substrate (1), wherein both sides of the substrate (1) are provided with a plurality of raised ridges (2), characterized in that: The raised ridges (2) are arranged to form a plurality of U-shaped cavities and a plurality of water filtering channels, the U-shaped cavities being used to accommodate the magnetic balls (5), and the openings of the U-shaped cavities are also provided with slurry-sinking threaded sealing openings (6), through which the magnetic balls (5) are loaded and unloaded.

2. The special magnetic ceramic plate for dehydrating fine-grained strong magnetic minerals according to claim 1, characterized in that: A water filtering channel is arranged between two adjacent U-shaped cavities.

3. The special magnetic ceramic plate for dehydrating fine-grained strong magnetic minerals according to claim 2, characterized in that: A plurality of U-shaped cavities are symmetrically arranged along a central axis, and a first U-shaped cavity (301), a second U-shaped cavity (302), and a third U-shaped cavity (303) are arranged in sequence from the central axis to both sides, a second water filtering channel (402) is arranged between the first U-shaped cavity (301) and the second U-shaped cavity (302), and a third water filtering channel (403) is arranged between the second U-shaped cavity (302) and the third U-shaped cavity (303).

4. The special magnetic ceramic plate for dehydrating fine-grained strong magnetic minerals according to claim 3, characterized in that: The water filtering channel also includes a first water filtering channel (401) and a fourth water filtering channel (404) which are symmetrically arranged along the central axis.

5. The special magnetic ceramic plate for dehydrating fine-grained strong magnetic minerals according to claim 1, characterized in that: The magnetic ball (5) is a neodymium iron boron permanent magnet magnetic ball.

6. A special magnetic ceramic plate for dehydrating fine-grained strong magnetic minerals according to claim 1 or 5, characterized in that: The magnetic field strength of the magnetic ball (5) is 160mT, 220mT, 350mT or 500mT.

7. The special magnetic ceramic plate for dehydrating fine-grained strong magnetic minerals according to claim 6, characterized in that: The diameter of the magnetic ball (5) is 4 mm.

8. The special magnetic ceramic plate for dehydrating fine-grained strong magnetic minerals according to claim 7, characterized in that: The distance (7) between the raised ridges (2) forming the U-shaped cavity is 3 mm.

9. The special magnetic ceramic plate for dehydrating fine-grained strong magnetic minerals according to claim 1, characterized in that: The grout-sinking threaded sealing opening (6) is sealed by using a countersunk screw.

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