Multifunctional all-in-one machine for solid-liquid separation of zeolite molecular sieve

Abstract

The utility model discloses a multifunctional all-in-one machine for solid-liquid separation of zeolite molecular sieves, particularly relates to the technical field of solid-liquid separation of zeolite molecular sieves, and comprises a tank body, the lower end face of the tank body is fixedly connected with a bearing chassis, and the upper end face of the tank body is connected with a tank top cover through bolts. The upper end face of the tank top cover is connected with a water inlet pipe and a compressed air pipeline, and a feeding assembly is arranged on one side of the tank body. A stirring motor is installed on the upper end face of the tank top cover and located between the water inlet pipe and the compressed air pipeline, and the output end of the stirring motor is connected with a stirring paddle. According to the utility model, the filter pressing, pulping and washing functions are integrated, so that the problem that a filter cake is always in a static state in the traditional filtering and washing process is solved, a zeolite molecular sieve attached and deposited on a filter bag can return to slurry again under the impact of violent stirring movement of the slurry through continuous stirring, and repeated pulping is carried out; therefore, the water consumption and time for washing are reduced, and the cleaning effect is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of solid-liquid separation of zeolite molecular sieves, in particular to a multifunctional all-in-one machine for solid-liquid separation of zeolite molecular sieves. Background Art

[0002] In the production process of molecular sieve catalysts, solid-liquid separation equipment is often required to remove the alkaline mother liquor in the crystallization synthesis process and wash away impurities such as incompletely reacted inorganic silicates, so as to obtain pure target products. If the cleaning effect is poor, the performance of the catalyst will be greatly and irreversibly reduced. Therefore, it is particularly important to choose appropriate molecular sieve separation and cleaning equipment and cleaning process;

[0003] Existing solid-liquid separation equipment mainly includes plate and frame, centrifuge, and ceramic membrane assembly. Although the plate and frame have the advantages of large filtration area, simple operation and easy maintenance, the filter cloth will need to be replaced due to clogging or wear after a period of use, which makes the filter cloth replacement cycle short, time-consuming and labor-intensive. In addition, although the filtration area is large, due to its intermittent operation mode, the cake needs to be unloaded and re-fed after each filtration is completed. Therefore, the efficiency is low when continuously processing large amounts of materials, and the processing capacity is relatively weak. In addition, the plate and frame also requires a large floor space.

[0004] Although centrifuges have the advantages of high processing efficiency and the ability to efficiently separate material components with similar differences, they are complex in design and require precision mechanical parts. They have high maintenance costs, short maintenance cycles, and high maintenance frequency. In addition, centrifuges have high requirements for the site, requiring a well-level surface and a stable foundation.

[0005] Although ceramic membrane separation has the advantages of no phase change and low energy consumption during the separation process, can be carried out at room temperature, and can effectively maintain the original properties of the substance, during operation, the membrane surface is easily covered by pollutants, resulting in a decrease in permeability. As the use time increases, the membrane pores may be blocked, which not only affects the separation efficiency but also shortens the service life of the membrane. Therefore, a device for solid-liquid separation of zeolite molecular sieves is proposed, which integrates filtration, pulping, and washing functions. Utility Model Content

[0006] The purpose of the utility model is to provide a multifunctional all-in-one machine for solid-liquid separation of zeolite molecular sieves, so as to solve the above-mentioned deficiencies in the technology.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multifunctional all-in-one machine for solid-liquid separation of zeolite molecular sieves, comprising a tank body, the lower end surface of the tank body is fixedly connected to a supporting chassis, and the upper end surface of the tank body is connected to a tank top cover by bolts, the upper end surface of the tank top cover is connected to a water inlet pipe and a compressed air pipeline, a second switch valve is installed on the water inlet pipe, a first switch valve is installed on the compressed air pipeline, a feed assembly is provided on one side of the tank body, a filter assembly is provided inside the tank body, and the filter assembly includes a filter assembly uniformly connected to the supporting bottom The filter assembly further comprises a filter bag mounted on the outside of each filter rod, the filter bag being connected to a binding rope at the opening thereof, the bottom of the filter bag being fastened to the bottom of the filter rod with the binding rope, the supporting chassis being provided with circular threaded holes matching the number of filter rods, the outer wall of the filter rod being provided with external threads matching the internal threads of the circular threaded holes, the lower end face of the supporting chassis being fixedly connected to a liquid receiving hopper, and a drain valve being installed on the discharge pipe at the lower end face of the liquid receiving hopper.

[0008] Preferably, the feeding assembly includes a feed pump installed on the outer wall supporting plate of the tank body, the discharge end of the feed pump is connected to a feed pipe, the discharge end of the feed pipe passes through and extends to the interior of the tank body, and the end of the feed pump away from the feed pipe is connected to a connecting pipe.

[0009] Through the above technical solution:

[0010] During pressure filtration, compressed air is introduced into the tank body through the compressed air pipeline, and the compressed air is used as the driving force to maintain the positive pressure in the tank, so that the liquid can easily penetrate the filter assembly under the action of positive pressure, making the filtration process faster, accelerating the filtration speed of the liquid, and improving the filtration efficiency. Under the action of positive pressure, the zeolite molecular sieve is firmly retained on the filter bag, making the separation effect more thorough and improving the purity of the separation.

[0011] Preferably, a stirring motor is installed on the upper end surface of the tank top cover and located between the water inlet pipe and the compressed air pipeline, and the output end of the stirring motor is connected to a stirring paddle, and the stirring paddle is arranged inside the tank body.

[0012] Through the above technical solution:

[0013] During beating and washing, the multi-layer propulsion stirring paddle is driven by the stirring motor to rotate and continuously stir the slurry, and the zeolite molecular sieve attached to and deposited on the filter bag can be returned to the slurry under the impact of the violent stirring movement of the slurry, thereby increasing the contact opportunity between the washing liquid and the zeolite molecular sieve, and through repeated beating, it can be ensured that the impurities in the zeolite molecular sieve are thoroughly cleaned. In addition, due to continuous stirring, the filter cake is no longer in a static state, and the washing liquid can penetrate the filter cake more evenly, reducing ineffective water consumption and reducing the total water consumption.

[0014] Specifically, during the processing, first connect the connecting pipe to the storage device, then turn on the feed pump, and inject the slurry into the tank body through the feed pipe (the injected slurry liquid level is 4m, and the slurry mass is about 33.9.t). Then turn on the stirring motor, and drive the stirring paddle to rotate through the stirring motor (the speed is 30rpm) to stir the filtered slurry (stirring time is 30min). Then cover the tank top cover to make the tank body airtight. Then, inject compressed air (pressure is 0.5MPa) into the tank through the compressed air pipeline connected to the external compressed air machine to filter the filtrate. The liquid is discharged into the liquid receiving hopper through the filter bag, the circular holes on the filter rod and the circular threaded holes on the supporting chassis. Then the drain valve is opened and the filtrate is discharged through the discharge pipe of the liquid receiving hopper. During the operation, pure water is added to the tank through the water inlet pipe every ten minutes to make the liquid level reach the initial slurry level height (4 meters). When the pH value of the filtrate is close to neutral after washing, the water addition is stopped and the filtrate in the tank is discharged continuously using compressed air. Finally, the tank top cover is opened and the filter cake attached to the filter rod is taken out together with the filter bag to obtain the cleaned molecular sieve catalyst wet material.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] This equipment for solid-liquid separation of zeolite molecular sieves integrates the functions of filter pressing, pulping and washing. During filter pressing, compressed air is introduced into the tank through the compressed air pipeline. The compressed air is used as the driving force to maintain the positive pressure in the tank, so that the liquid can easily penetrate the filter material under the action of positive pressure, making the filtration process faster, accelerating the filtration speed of the liquid and improving the filtration efficiency. Under the action of positive pressure, the zeolite molecular sieve is firmly retained on the filter bag, making the separation effect more thorough and improving the purity of the separation. During pulping and washing, the multi-layer propulsion stirring paddle is driven by the stirring motor to rotate and continuously stir the slurry. The zeolite molecular sieve attached to and deposited on the filter bag can be returned to the slurry under the impact of the violent stirring movement of the slurry, which increases the contact opportunity between the washing liquid and the zeolite molecular sieve, more effectively removes impurities, and improves the washing efficiency. Through repeated beating, it can ensure that the impurities in the zeolite molecular sieve are thoroughly cleaned, and the zeolite molecular sieve can better maintain its original adsorption performance after washing, which can reduce the amount of water and time for washing and improve the quality of cleaning. In addition, due to continuous stirring, the filter cake is no longer in a static state, and the washing liquid can penetrate the filter cake more evenly, reducing ineffective water consumption and reducing the total water consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the split cutaway of the present utility model;

[0020] Figure 3 This is a schematic diagram of the connection between the filter assembly and the supporting chassis of the utility model;

[0021] Figure 4 This is a schematic diagram of the disassembly of the filter assembly and the supporting chassis of the utility model;

[0022] Figure 5 This is a schematic diagram of the filter assembly of the present invention.

[0023] Description of reference numerals:

[0024] 1. Tank body; 2. Support chassis; 3. Liquid receiving hopper; 4. Feed pipe; 5. Feed pump; 6. Connecting pipe; 7. Water inlet pipe; 8. Compressed air pipeline; 9. Agitator; 10. Tank top cover; 11. Agitator motor; 12. Filter assembly; 121. Filter rod; 122. Round hole; 123. Filter bag; 124. Binding rope; 13. Drain valve; 14. First on / off valve; 15. Second on / off valve; 16. Round threaded hole; 17. External thread. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] The utility model provides Figure 1-Figure 5 The multifunctional all-in-one machine for solid-liquid separation of zeolite molecular sieves shown includes:

[0027] The tank body 1 is fixedly connected to the supporting chassis 2 on the lower end surface of the tank body 1, and the tank top cover 10 is connected to the upper end surface of the tank top cover 10 by bolts. The upper end surface of the tank top cover 10 is connected to the water inlet pipe 7 and the compressed air pipeline 8. The second switch valve 15 is installed on the water inlet pipe 7, and the first switch valve 14 is installed on the compressed air pipeline 8. A feed assembly is provided on one side of the tank body 1, and a filter assembly 12 is provided inside the tank body 1. The filter assembly 12 includes a plurality of filter rods 121 uniformly connected to the upper end surface of the supporting chassis 2 and located inside the tank body 1. The outer wall of each filter rod 121 is uniform. A plurality of circular holes 122 are provided, and the filter assembly 12 also includes a filter bag 123 which is sleeved on the outside of each filter rod 121. A binding rope 124 is connected to the opening of the filter bag 123, and the bottom of the filter bag 123 is tightly tied to the bottom of the filter rod 121 with the binding rope 124. The supporting chassis 2 is provided with circular threaded holes 16 which match the number of filter rods 121, and the outer wall of the filter rod 121 is provided with an external thread 17 which is compatible with the internal thread of the circular threaded hole 16. The lower end surface of the supporting chassis 2 is fixedly connected to the liquid receiving bucket 3, and a drain valve 13 is installed on the discharge pipe of the lower end surface of the liquid receiving bucket 3.

[0028] Further, see Figure 2 As shown, the feeding assembly includes a feed pump 5 installed on the outer wall supporting plate of the tank body 1, the discharge end of the feed pump 5 is connected to the feed pipe 4, the discharge end of the feed pipe 4 passes through and extends to the interior of the tank body 1, and the end of the feed pump 5 away from the feed pipe 4 is connected to the connecting pipe 6.

[0029] Through the above technical solution:

[0030] During pressure filtration, compressed air is introduced into the tank body 1 through the compressed air pipeline 8. The compressed air is used as the driving force to maintain the positive pressure in the tank, so that the liquid can easily penetrate the filter assembly 12 under the action of positive pressure, making the filtration process faster, accelerating the filtration speed of the liquid, and improving the filtration efficiency. Under the action of positive pressure, the zeolite molecular sieve is firmly retained on the filter bag 123, making the separation effect more thorough and improving the purity of the separation.

[0031] The utility model provides Figure 1-Figure 4 The multifunctional all-in-one machine for solid-liquid separation of zeolite molecular sieves is shown. A stirring motor 11 is installed on the upper end surface of the tank top cover 10 and located between the water inlet pipe 7 and the compressed air pipeline 8. The output end of the stirring motor 11 is connected to a stirring paddle 9, which is arranged inside the tank body 1.

[0032] Through the above technical solution:

[0033] During beating and washing, the multi-layer propulsion stirring paddle 9 is driven by the stirring motor 11 to rotate and continuously stir the slurry, so that the zeolite molecular sieve attached to and deposited on the filter bag 123 can be returned to the slurry under the impact of the violent stirring movement of the slurry, thereby increasing the contact opportunity between the washing liquid and the zeolite molecular sieve, and through repeated beating, it can be ensured that the impurities in the zeolite molecular sieve are thoroughly cleaned. In addition, due to continuous stirring, the filter cake is no longer in a static state, and the washing liquid can penetrate the filter cake more evenly, reducing ineffective water consumption and reducing the total water consumption.

[0034] Specifically, during processing, first connect the connecting pipe 6 to the storage equipment, then turn on the feed pump 5, and inject the slurry into the tank body 1 through the feed pipe 4 (the injected slurry liquid level is 4m, and the slurry mass is about 33.9t). Then turn on the stirring motor 11, and drive the stirring paddle 9 to rotate through the stirring motor 11 (the speed is 30rpm) to stir the filtered slurry (stirring time is 30min), and then cover the tank top cover 10 to make the tank body 1 airtight. Then, through the compressed air pipeline 8 connected to the external compressed air machine, inject compressed air (pressure is 0.5MPa) into the tank, and the filtered filtrate passes through the filter bag. 123, the circular hole 122 on the filter rod 121 and the circular threaded hole 16 on the supporting chassis 2 are discharged into the liquid receiving bucket 3, and then the drain valve 13 is opened, and the filtrate is discharged through the discharge pipe of the liquid receiving bucket 3. During the operation, pure water is added to the tank through the water inlet pipe 7 every ten minutes to make the liquid level reach the initial slurry liquid level height (4 meters). When the pH value of the filtrate is close to neutral after washing, the water addition is stopped, and the compressed air is continued to be used to discharge the filtrate in the tank. Finally, the tank top cover 10 is opened, and the filter cake attached to the filter rod 121 is taken out together with the filter bag 123 to obtain the cleaned molecular sieve catalyst wet material.

[0035] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multifunctional all-in-one machine for solid-liquid separation of zeolite molecular sieves, characterized in that: include: A tank body (1), wherein the lower end surface of the tank body (1) is fixedly connected to a supporting chassis (2), and the upper end surface of the tank body (1) is connected to a tank top cover (10) via bolts, the upper end surface of the tank top cover (10) is connected to a water inlet pipe (7) and a compressed air pipeline (8), and a feed assembly is provided on one side of the tank body (1); A stirring motor (11) is installed on the upper end surface of the tank top cover (10) and located between the water inlet pipe (7) and the compressed air pipeline (8). The output end of the stirring motor (11) is connected to a stirring paddle (9). The stirring paddle (9) is arranged inside the tank body (1), and a filter assembly (12) is provided on the outside of the stirring paddle (9).

2. The multifunctional all-in-one machine for solid-liquid separation of zeolite molecular sieve according to claim 1, characterized in that: The filter assembly (12) comprises a plurality of filter rods (121) uniformly connected to the upper end surface of the supporting chassis (2) and located inside the tank body (1), and the outer wall of each filter rod (121) is uniformly provided with a plurality of circular holes (122).

3. The multifunctional all-in-one machine for solid-liquid separation of zeolite molecular sieve according to claim 1, characterized in that: The filter assembly (12) further comprises a filter bag (123) sleeved on the outside of each filter rod (121), and a binding rope (124) is connected to the opening of the filter bag (123).

4. The multifunctional all-in-one machine for solid-liquid separation of zeolite molecular sieve according to claim 1, characterized in that: The feed assembly comprises a feed pump (5) mounted on a supporting plate on the outer wall of the tank body (1); the discharge end of the feed pump (5) is connected to a feed pipe (4); the discharge end of the feed pipe (4) passes through and extends into the interior of the tank body (1); and the end of the feed pump (5) away from the feed pipe (4) is connected to a connecting pipe (6).

5. The multifunctional all-in-one machine for solid-liquid separation of zeolite molecular sieve according to claim 1, characterized in that: The lower end surface of the supporting chassis (2) is fixedly connected to a liquid receiving hopper (3), and a liquid discharge valve (13) is installed on the discharge pipe of the lower end surface of the liquid receiving hopper (3).

6. The multifunctional all-in-one machine for solid-liquid separation of zeolite molecular sieve according to claim 1, characterized in that: A second switch valve (15) is installed on the water inlet pipe (7), and a first switch valve (14) is installed on the compressed air pipeline (8).

7. The multifunctional all-in-one machine for solid-liquid separation of zeolite molecular sieve according to claim 1, characterized in that: The supporting chassis (2) is provided with circular threaded holes (16) whose number matches the number of filter rods (121), and the outer wall of the filter rod (121) is provided with external threads (17) that match the internal threads of the circular threaded holes (16).

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