Laboratory filter pressing device suitable for wet-process phosphoric acid impurity removal
By introducing an insulating jacket and compressed air pressurization into the laboratory filter press, the problem that laboratory wet phosphoric acid purification cannot simulate industrial production was solved, and efficient and reliable experimental data collection was achieved.
Patent Information
- Application Number
- CN202422937058.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-29
AI Technical Summary
The laboratory wet phosphoric acid purification filtration device cannot simulate industrial production and cannot maintain the temperature, resulting in inaccurate experimental results.
A laboratory filter press device with an insulated jacket was designed, comprising a conical cylinder, a filter cylinder and filter plates. It achieves high-efficiency filtration by using a steam insulated jacket and compressed air pressurization, simulating an industrial production process.
It improves laboratory pressure filtration efficiency, provides more accurate and reliable data, avoids material crystallization, and fully simulates the effects of industrial production.
Smart Images
Figure CN223517101U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to filter press device technical field, especially to a kind of laboratory filter press device suitable for wet-process phosphoric acid impurity removal. BACKGROUND
[0002] In the industrialization use of wet-process phosphoric acid, impurity removal filter device is mostly used filter press. And laboratory small test is mostly used vacuum filtration, cannot completely simulate industrial production, thereby affecting the reliability and accuracy of experiment. And laboratory filtration process cannot be kept warm, material exists crystallization condition. SUMMARY
[0003] In view of the above technical problems of prior art, the technical problem to be solved by the present application is to provide a laboratory filter press device suitable for wet-process phosphoric acid impurity removal, which has a heat preservation jacket, high filter efficiency and more realistic and reliable test data.
[0004] To solve the above technical problems, the utility model adopts the following technical scheme:
[0005] A kind of laboratory filter press device suitable for wet-process phosphoric acid impurity removal, including conical cylinder, the upper end of the conical cylinder extends outward to form support table, the support table is fixedly installed with supporting leg downwards, the lower end of the conical cylinder is provided with discharge port, discharge valve is installed at the discharge port;The upper of the conical cylinder is provided with filter press cylinder, the lower end of the filter press cylinder extends outward to form flange table, the outside of the filter press cylinder is covered with heat preservation jacket, the heat preservation jacket is fixedly connected with filter press cylinder, the lower end of support table is fixed with several lift cylinders, the cylinder rod of the lift cylinder passes through support table and is fixedly connected with flange table;The upper end of the conical cylinder is provided with sink, filter plate is placed in the sink, filter hole is formed in the filter plate, filter cloth is placed on the filter plate, the lower end of the flange table is pressed filter cloth;The lower end of the heat preservation jacket is connected with steam inlet pipe, the upper end of the heat preservation jacket is connected with steam outlet pipe;
[0006] The upper end of the filter press cylinder is provided with material inlet, the material inlet passes through heat preservation jacket and is installed with feeding valve, the filter press cylinder is also installed with compressed air inlet pipe, the compressed air inlet pipe passes through heat preservation jacket and is outward provided.
[0007] As preferred, the lower end of the heat preservation jacket is fixedly provided with convex edge outward, the convex edge is fixedly connected with the flange table of filter press cylinder by bolt.
[0008] As preferred, the lower end of the flange table is fixedly installed with sealing ring.
[0009] Preferably, the heat preservation jacket is provided with a through hole allowing the material inlet to pass through, the material inlet of the filter press cylinder is fixed with a limiting plate abutting against the heat preservation jacket, the upper end of the limiting plate is fixed with a sealing ring, and the limiting plate and the heat preservation jacket are fixedly connected through bolts.
[0010] Preferably, the lower end of the compressed air inlet pipe is fixed with a lower ring, the filter press cylinder is provided with a support table protruding opposite the lower ring, the lower ring and the support table are fixedly connected through bolts, and the support table is provided with a gas passing hole.
[0011] The upper end of the compressed air inlet pipe is fixed with an upper ring, the heat preservation jacket is fixed with a support frame, the support frame is provided with a through hole allowing the lower ring to pass through, and the upper ring and the support frame are fixedly connected through bolts.
[0012] In summary, the laboratory filter press device suitable for wet-process phosphoric acid impurity removal has higher vacuum filtration efficiency, is more convenient, completely simulates production filter pressing effect, and has more real and reliable experimental data. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 A structural schematic view of the laboratory filter press device suitable for wet-process phosphoric acid impurity removal.
[0014] Figure 2 An internal structure schematic view of the laboratory filter press device suitable for wet-process phosphoric acid impurity removal.
[0015] Figure 3 A Figure 2 An enlarged schematic view of A in FIG. DETAILED DESCRIPTION
[0016] The utility model will be further described in detail below in combination with the drawings. In the description of the utility model, it is understood that the directions such as "up, down", "top, bottom" and the like indicated by the directions or position relations shown in the drawings are usually based on the directions or position relations shown in the drawings, and these directions are only for the convenience of describing the utility model and simplifying the description, and under the circumstances without making the opposite statement, these directions do not indicate and imply that the indicated device or element must have a specific direction or be constructed and operated in a specific direction, so it cannot be understood as the limitation of the protection scope of the utility model; the directions "in, out" refer to the inside and outside relative to the contour of each component.
[0017] As Figures 1-3As shown, a laboratory filter press device suitable for wet phosphoric acid impurity removal includes a conical cylinder 1, the upper end of the conical cylinder extends outward to form a support table 2, the support table is fixedly installed with a support leg 3 downward, the lower end of the conical cylinder is provided with a discharge port, the discharge port is installed with a discharge valve 4; The upper end of the conical cylinder is provided with a filter press cylinder 5, the lower end of the filter press cylinder extends outward to form a flange table 6, the outer side of the filter press cylinder is covered with a heat preservation jacket 6, the heat preservation jacket is fixedly connected with the filter press cylinder, the lower end of the support table is fixedly connected with a plurality of jacking cylinders 7, the cylinder rod of the jacking cylinder penetrates through the support table and is fixedly connected with the flange table; The upper end of the conical cylinder is provided with a sink table, the sink table is placed with a filter plate 8, the filter plate is provided with a filter hole, the filter plate is placed with filter cloth (not shown), the lower end of the flange table is pressed against the filter cloth; The lower end of the heat preservation jacket is connected with a steam inlet pipe 9, and the upper end of the heat preservation jacket is connected with a steam outlet pipe 10.
[0018] The upper end of the filter press cylinder is provided with a material inlet, the material inlet penetrates through the heat preservation jacket and is installed with a feeding valve 11, the filter press cylinder is also installed with a compressed air inlet pipe 12, the compressed air inlet pipe penetrates through the heat preservation jacket and is provided outward.
[0019] In this way, in the slag removal and filtration stage, the slurry is poured into the filter press cylinder with filter cloth, compressed air is introduced into the gas phase space to pressurize, and the effect of pump pressure filtration in production is simulated. The device is designed with a heat preservation jacket, which can be heated, and steam can be introduced to prevent material crystallization.
[0020] Specifically, in use, the discharge valve is closed, the feeding valve is opened, the material slurry is poured into the filter press cylinder through the material inlet, the feeding valve is closed, compressed air is introduced for pressurization, pressure filtration is realized, and filtration is carried out through the filter cloth. After the pressure filtration is completed, the feeding valve and the discharge valve are opened to realize discharging. The jacking cylinders are provided, which facilitate the upward jacking of the filter press cylinder and the heat preservation jacket, and facilitate the replacement of the filter cloth and the filter plate. The steam generator is connected through the steam inlet pipe, and the steam is passed between the heat preservation jacket and the filter press cylinder to realize heat preservation of the filter press cylinder and prevent material crystallization.
[0021] In this specific embodiment, the lower end of the heat preservation jacket is fixedly provided with a convex edge 13, and the convex edge is fixedly connected with the flange table of the filter press cylinder through bolts. It is convenient to install.
[0022] In this specific embodiment, the lower end of the flange table is fixedly installed with a sealing ring. The sealing effect is improved.
[0023] In this specific embodiment, the heat preservation jacket is provided with a perforation allowing the material inlet to penetrate, the material inlet of the filter press cylinder is fixedly provided with a limiting plate 14 abutting against the heat preservation jacket, the upper end of the limiting plate is fixedly provided with a sealing ring, and the limiting plate and the heat preservation jacket are fixedly connected through bolts. It is convenient to install, and the sealing effect is improved at the same time.
[0024] In the embodiment, the lower end of the compressed air inlet pipe is fixed with a lower ring 15, the filter cartridge is provided with a support table 16 opposite to the lower ring, the lower ring and the support table are fixedly connected through bolts, and the support table is provided with a gas passing hole;
[0025] The upper end of the compressed air inlet pipe is fixed with an upper ring 17, the heat preservation jacket is fixed with a support frame 18, the support frame is provided with a perforation allowing the lower ring to pass through, and the upper ring and the support frame are fixedly connected through bolts.
[0026] The compressed air inlet pipe is passed through the perforation of the support frame, so that the lower ring abuts against the support table and the upper ring abuts against the support frame, the lower ring and the support table are fixedly connected through bolts, the upper ring and the support frame are fixedly connected through bolts, and the installation of the compressed air inlet pipe is completed. The lower ends of the upper ring and the lower ring are fixed with sealing rings, so as to improve the sealing effect.
[0027] Finally, it should be noted that those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and the statistical number, the utility model also intends to include these modifications and variations.
Claims
1. A laboratory filter press suitable for use in wet-process phosphoric acid purification, characterized in that, The application relates to a filter device, which comprises a conical cylinder, the upper end of the conical cylinder outwardly extends to form a supporting table, supporting legs are fixedly arranged on the supporting table, a discharging port is arranged at the lower end of the conical cylinder, and a discharging valve is arranged at the discharging port; a filter cylinder is arranged above the conical cylinder, the lower end of the filter cylinder outwardly extends to form a flange table, a heat preservation jacket is arranged on the outer side of the filter cylinder, the heat preservation jacket is fixedly connected with the filter cylinder, a plurality of jacking cylinders are fixedly arranged at the lower end of the supporting table, the cylinder rods of the jacking cylinders pass through the supporting table and are fixedly connected with the flange table; a sink is arranged at the upper end of the conical cylinder, a filter plate is arranged in the sink, filter holes are formed in the filter plate, filter cloth is arranged on the filter plate, and the lower end of the flange table presses the filter cloth; a steam inlet pipe is connected with the lower end of the heat preservation jacket, and a steam outlet pipe is connected with the upper end of the heat preservation jacket; a material inlet is formed in the upper end of the filter cylinder, the material inlet passes through the heat preservation jacket and is provided with a feeding valve, and a compressed air inlet pipe is further arranged on the filter cylinder and outwardly arranged through the heat preservation jacket.
2. A laboratory filter press suitable for use in wet-process phosphoric acid impurity removal according to claim 1, characterized in that, The lower end of the heat preservation jacket is fixedly provided with a convex edge, and the convex edge is fixedly connected with the flange table of the filter cylinder through bolts.
3. A laboratory filter press suitable for use in wet-process phosphoric acid impurity removal according to claim 2, characterized in that, The lower end of the flange table is fixedly provided with a sealing ring.
4. A laboratory filter press suitable for use in wet-process phosphoric acid impurity removal according to claim 3, characterized in that, The heat preservation jacket is provided with a through hole allowing the material inlet to pass through, the material inlet of the filter cylinder is fixedly provided with a limiting plate abutting against the heat preservation jacket, the upper end of the limiting plate is fixedly provided with a sealing ring, and the limiting plate is fixedly connected with the heat preservation jacket through bolts.
5. A laboratory filter press suitable for use in wet-process phosphoric acid impurity removal according to claim 4, characterized in that, The lower end of the compressed air inlet pipe is fixedly provided with a lower ring, the filter cylinder is provided with a supporting table protruding opposite to the lower ring, the lower ring is fixedly connected with the supporting table through bolts, and the supporting table is provided with an air passing hole; The upper end of the compressed air inlet pipe is fixedly provided with an upper ring, the heat preservation jacket is fixedly provided with a supporting frame, the supporting frame is provided with a through hole allowing the lower ring to pass through, and the upper ring is fixedly connected with the supporting frame through bolts.