Vacuum suction filter with large-diameter copper filter disc

Abstract

The utility model relates to a large-caliber copper filter disc vacuum suction filter which comprises a cabinet body, a cabinet door, a filter barrel, a filter disc, a filter disc filter paper pressing disc and a vacuum pump, and the filter disc is a copper filter disc made of brass materials; a stirring machine is mounted above the filter disc filter paper pressing disc and is vertically arranged, the lower end of a stirring shaft of the stirring machine extends into the filter disc filter paper pressing disc, and a horizontal scraping plate positioned in the filtering area is mounted at the lower end of the stirring shaft. The utility model relates to a vacuum suction filter with a large-caliber copper filter disc, which can be used for filtering filtrate containing zirconium element, and the zirconium element cannot chemically react with the filter disc. The solution is not polluted in the suction filtration process, and meanwhile, the filter disc and the filter cartridge have a good corrosion-resistant effect. A feasible scheme is provided for filtering the zirconium element, and the application scene of the vacuum suction filter is widened. According to the suction filter, the stirring function is added, a filter residue layer is prevented from being formed through stirring, the filtering efficiency and the use efficiency of equipment are improved, manual operation is reduced, and the time cost and the labor cost are saved.

Description

Technical Field

[0001] The utility model relates to the field of chemical industry and laboratory equipment, in particular to a large-caliber copper filter plate vacuum filter. Background Art

[0002] Vacuum filter is a kind of solid and liquid separation equipment widely used in various fields. Its working principle is that under vacuum state, the liquid in the suspension is sucked away through the filter medium (filter cloth), while the solid particles are intercepted by the medium, thereby achieving the separation of liquid and solid. During the filtration process, the filter residue layer accumulated on the surface of the filter medium gradually thickens, and the resistance of the liquid passing through the filter residue layer increases accordingly, which slows down the filtration speed. When the filtration speed is too slow, it is necessary to stop the filtration and remove the filter residue, which affects the filtration efficiency and increases the time and labor costs of filtration.

[0003] The vacuum filter currently sold on the market has a good effect on the separation and filtration of ore slurry. However, when the equipment is cleaning and drying the reducing agent zirconium, it will cause a chemical reaction when it comes into contact with aluminum, causing pollution of the filtration solution and corrosion of the equipment, resulting in the inability of the existing vacuum filter to be used for the filtration of zirconium-containing solutions. However, zirconium is widely used in industrial production. In the nuclear industry, zirconium has a very small cross-section for neutron absorption, and the alloy is stable at high temperatures, so it is often used to manufacture structural materials for nuclear reactors; in the aerospace industry, especially when manufacturing parts with high temperature and high strength requirements, zirconium alloys are often used to manufacture jet engine parts and other aircraft components due to their high melting point and corrosion resistance; zirconium alloys are used in the manufacture of some medical equipment due to their biocompatibility; zirconium salts are also used in some chemical reactions as catalysts or additives, and are widely used in the chemical industry. However, the vacuum filter on the market will react chemically with the element zirconium, which hinders the application of zirconium in the market and restricts the development of related industries. The research and development of vacuum filters suitable for zirconium elements has important practical significance for expanding the application scope of zirconium elements, promoting the application of zirconium elements in the industry, and promoting social progress. Utility Model Content

[0004] The utility model aims to make up for the shortcomings of the prior art and provide a large-diameter copper filter disc vacuum filter which can filter filtrate containing zirconium element and has high filtration efficiency.

[0005] The purpose of this utility model is achieved through the following technical means:

[0006] A large-caliber copper filter plate vacuum filter machine comprises a cabinet, a cabinet door, a filter barrel, a filter plate, a filter plate filter paper pressing plate and a vacuum pump. The cabinet door is installed on the front of the cabinet, and one or more filter barrels arranged vertically and located in the cabinet are installed on the cabinet top plate. The filter plate is coaxially embedded on the upper end of the filter barrel, and the filter plate filter paper pressing plate is pressed on the filter plate. A filtering area is formed between the filter plate and the filter plate filter paper pressing plate; a horizontal partition is installed inside the filter barrel below the filter plate to divide the inside of the filter barrel into two upper and lower chambers, and a collecting partition located below the filter plate is installed in the upper chamber. The collecting partition is a circular It is in the shape of a conical funnel, and the outlet at the bottom is connected to a vertically arranged conduit, the lower part of which passes through the horizontal partition and extends into the lower chamber; the bottom of the filter barrel is a liquid discharge port, and the side wall of the filter barrel is formed with an air extraction interface, which is connected to a vacuum pump, and the vacuum pump is placed in the cabinet, characterized in that: the filter disc is a copper filter disc made of brass; a stirrer is installed above the filter disc filter paper pressing plate, the stirrer is vertically arranged, the lower end of the stirring shaft of the stirrer extends into the filter disc filter paper pressing plate, and the lower end of the stirring shaft is installed with a horizontal scraper located in the filtration area.

[0007] Moreover, there are two filter barrels, and the diameters of the filter discs embedded in the grooves at the upper ends of the two filter barrels can be the same or different.

[0008] Moreover, the rear end of the filter disc filter paper pressure plate is hinged on the top plate of the cabinet, and a handle is installed at the front end of the filter disc filter paper pressure plate. The left and right sides of the filter disc filter paper pressure plate are respectively pressed and fixed by a pressure plate fixing clamp. The two pressure plate fixing clamps are both installed on the top plate of the cabinet and are symmetrically arranged.

[0009] Moreover, a filter medium is placed between the filter disc and the filter disc filter paper pressing plate, and the filter medium is filter paper or filter cloth.

[0010] Moreover, the filter holes made on the copper filter disc have a diameter of 1 mm, and all the filter holes are perpendicular to the end surface.

[0011] Furthermore, a groove is formed on the conduit located in the lower chamber, which is opposite to the air extraction interface, and the bottom of the conduit is located above the liquid discharge port.

[0012] Furthermore, the air extraction interface is connected to a separate ball valve.

[0013] Moreover, a vacuum pump start and stop control box is installed on the cabinet.

[0014] The advantages and positive effects of the utility model are:

[0015] 1. The filter plate of this filter is made of brass. The metal activity of copper plate is weaker than zirconium. For the metal salt solution containing zirconium element that needs to be filtered, the use of copper plate can effectively avoid the problem of chemical reaction between the filter and zirconium element. For example, in the process of preparing ignition paper, the cleaning and drying of the reducing agent zirconium promotes the application of zirconium element in related industries.

[0016] 2. The copper filter disc of this filter has better corrosion resistance. Copper has better corrosion resistance than other materials, especially in some chemically corrosive environments. The copper filter disc can better resist the erosion of chemical substances and extend the service life of the equipment.

[0017] 3. This vacuum filter has an additional mixer to stir the added materials to improve work efficiency. (1) Increase filtration speed: Stirring can disperse the solid particles in the material and reduce the possibility of clogging the filter, thereby increasing the filtration speed and saving time and cost. (2) Prevent filter clogging: Stirring can prevent solid particles from accumulating on the filter surface, thereby extending the service life of the filter and improving equipment utilization. (3) Increase contact area: Stirring can increase the contact area between the material and the filter and improve filtration efficiency. (4) Even mixing: Stirring can make the material more evenly mixed in the vacuum filter to avoid stratification or precipitation. (5) Promote reaction: If a chemical reaction is carried out in the vacuum filter, stirring can promote contact between the reactants, thereby accelerating the reaction rate. Accelerate the separation between solids and liquids. (6) Heat dissipation: In some chemical reactions, stirring can help dissipate heat and prevent excessive temperatures.

[0018] 4. The utility model is a large-caliber copper filter plate vacuum filter with scientific design, reasonable structure and strong practicality. The filter is mainly composed of a stirrer on the top, a filter plate, a filter paper pressure plate, a filter plate, etc. The filter plate is made of brass, and there is a collection partition under the filter plate. The center of the partition is a filtrate guide tube, the bottom is a liquid collection tank, the lower part is a drain port, and the side is an exhaust interface connected to a vacuum pump. Compared with the traditional known technology, this technology can filter the filtrate containing zirconium elements, and the zirconium element will not react chemically with the filter plate. The filtration process will not contaminate the solution, and the filter plate and the filter cartridge have a good anti-corrosion effect. It provides a feasible solution for the filtration of zirconium elements and improves the applicable scenarios of vacuum filter machines. The filter has added a stirring function, which prevents the formation of a filter residue layer by stirring, improves the filtration efficiency and the use efficiency of the equipment, reduces manual operation, and saves time and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the utility model;

[0020] Figure 2 yes Figure 1 A top view of

[0021] Figure 3 yes Figure 2 AA section view;

[0022] Figure 4 It is a stereogram of the utility model. DETAILED DESCRIPTION

[0023] An embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings. It should be noted that this embodiment is descriptive and not restrictive, and the protection scope of the present utility model cannot be limited thereto.

[0024] A large-caliber copper filter plate vacuum filter includes a cabinet 5, a cabinet door 6, a filter barrel 7, a filter plate 10, a filter plate filter paper pressure plate 8 and a vacuum pump 14. A vacuum pump start-stop control box 3 is installed on the cabinet. The cabinet door is installed on the front of the cabinet, and a plurality of heat dissipation holes 19 are made on the back of the cabinet. One or more filter barrels are installed vertically and located in the cabinet. The filter plate is coaxially embedded in the upper end of the filter barrel. As shown in the attached figure, there are two filter barrels, and the diameters of the filter plates embedded in the grooves at the upper ends of the two filter barrels can be the same or different. In this embodiment, the diameters of the two filter plates are 270 mm and 170 mm respectively.

[0025] The filter disc filter paper pressing plate is pressed on the filter disc, and a filter area 22 is formed between the filter disc and the filter disc filter paper pressing plate; when in use, the filter material is spread on the filter disc, that is, a filter medium is placed between the filter disc and the filter disc filter paper pressing plate, and the filter medium is filter paper or filter cloth. The rear end of the filter disc filter paper pressing plate is hinged on the cabinet top plate, and a handle 9 is installed at the front end of the filter disc filter paper pressing plate. The left and right sides of the filter disc filter paper pressing plate are respectively pressed and fixed by a pressing plate fixing clamp 4, and the two pressing plate fixing clamps are both installed on the cabinet top plate and symmetrically arranged.

[0026] A horizontal partition 20 is installed inside the filter barrel below the filter disc, which can divide the inside of the filter barrel into two upper and lower chambers. A collecting partition 12 is installed below the filter disc in the upper chamber. The collecting partition is in the shape of a conical funnel, and its upper part is installed on the inner wall of the filter barrel. The outlet at its bottom is connected to a vertically arranged conduit 17, and the lower part of the conduit passes through the horizontal partition and extends into the lower chamber. A groove 18 is formed on the conduit in the lower chamber, which is opposite to the air extraction interface, and the bottom of the conduit is located above the drain port.

[0027] The bottom of the filter barrel is made into a cone, and the bottom of the cone is a drain port 16, on which a liquid collection valve 15 is installed. The side wall of the filter barrel is made into a suction interface, which is connected to a separate ball valve 13, and the suction interface is connected to a vacuum pump, which is placed in the cabinet.

[0028] The innovation of the utility model lies in that the filter disc is a copper filter disc made of brass material, and a plurality of filter holes are formed on the copper filter disc. The filter holes formed on the copper filter disc are filter holes 11 with a diameter of 1 mm, and all the filter holes are perpendicular to the end face. A stirrer 1 is installed above the filter paper pressing plate of the filter disc. The stirrer is vertically arranged, and the stirring shaft 2 of the stirrer is coaxially arranged with the filter barrel. The lower end of the stirring shaft of the stirrer extends into the filter paper pressing plate of the filter disc, and the lower end of the stirring shaft is installed with a horizontal scraper 21 located in the filter area (that is, the horizontal scraper is located above the filter medium). The suction filter has an additional stirring function, so it can prevent the formation of a filter residue layer, reduce the resistance of the liquid passing through the filter disc, and improve the suction filtration efficiency.

[0029] The working process of the utility model is:

[0030] During the operation of the large-caliber copper filter disc vacuum filter, open the filter disc filter paper pressure plate, put the cleaned copper filter disc into the groove of the filter barrel, put the corresponding filter paper on the filter disc, and press the filter disc filter paper pressure plate. Pour the material into the filter disc, turn on the mixer, turn on the vacuum pump, and the moisture in the material and the surrounding air will quickly pass through the filter paper into the filter barrel. The guide tube in the filter barrel is slotted with its back facing the exhaust interface, so that the gas will flow along the guide tube slot to the exhaust hole, and the liquid will flow along the guide tube to the bottom of the barrel for collection. Open the bottom liquid collection valve to guide the liquid into other containers.

[0031] The air extraction interfaces of the left and right filter barrels are each connected to a separate ball valve. By rotating the ball valve, the size of the air extraction flow rate can be controlled, and the opening and closing of the air extraction can be individually controlled.

Claims

1. A large-caliber copper filter disc vacuum filter machine, comprising a cabinet, a cabinet door, a filter barrel, a filter disc, a filter disc filter paper pressing plate and a vacuum pump, wherein the cabinet door is installed on the front of the cabinet, and one or more filter barrels arranged vertically and located in the cabinet are installed on the top plate of the cabinet, the filter disc is coaxially embedded on the upper end of the filter barrel, the filter disc filter paper pressing plate is pressed on the filter disc, and a filtering area is formed between the filter disc and the filter disc filter paper pressing plate; a horizontal partition is installed inside the filter barrel below the filter disc to divide the inside of the filter barrel into two upper and lower chambers, and a collecting partition located below the filter disc is installed in the upper chamber, the collecting partition is in the shape of a conical funnel, and a vertically arranged conduit is connected to the outlet at the bottom thereof, and the lower part of the conduit passes through the horizontal partition and extends into the lower chamber; the bottom of the filter barrel is a liquid discharge port, and an air extraction interface is formed on the side wall of the filter barrel, and the air extraction interface is connected to a vacuum pump, and the vacuum pump is placed in the cabinet, characterized in that: The filter disc is a copper filter disc made of brass; a mixer is installed above the filter paper pressing plate of the filter disc, the mixer is vertically arranged, the lower end of the mixer's stirring shaft extends into the filter paper pressing plate of the filter disc, and the lower end of the stirring shaft is installed with a horizontal scraper located in the filter area.

2. A large-caliber copper filter disc vacuum filter according to claim 1, characterized in that: There are two filter barrels, and filter discs are embedded in grooves at the upper ends of the two filter barrels.

3. A large-caliber copper filter disc vacuum filter according to claim 1, characterized in that: The rear end of the filter disc filter paper pressure plate is hinged on the cabinet top plate, and a handle is installed on the front end of the filter disc filter paper pressure plate. The left and right sides of the filter disc filter paper pressure plate are respectively pressed and fixed by a pressure plate fixing clamp. The two pressure plate fixing clamps are both installed on the cabinet top plate and are symmetrically arranged.

4. A large-caliber copper filter disc vacuum filter according to claim 1, characterized in that: A filter medium is placed between the filter disc and the filter disc filter paper pressing plate, and the filter medium is filter paper or filter cloth.

5. A large-caliber copper filter disc vacuum filter according to claim 1, characterized in that: The filter holes made on the copper filter disc have a diameter of 1 mm, and all the filter holes are perpendicular to the end surface.

6. A large-caliber copper filter disc vacuum filter according to claim 1, characterized in that: A groove facing away from the air extraction interface is formed on the conduit located in the lower chamber, and the bottom of the conduit is located above the liquid discharge port.

7. A large-caliber copper filter disc vacuum filter according to claim 1, characterized in that: The air extraction interface is connected to a separate ball valve.

8. A large-caliber copper filter disc vacuum filter according to claim 1, characterized in that: A vacuum pump start and stop control box is installed on the cabinet.

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