CN216457130U - Molecular sieve slurry filtering system and catalyst production line - Google Patents
Molecular sieve slurry filtering system and catalyst production line Download PDFInfo
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- CN216457130U CN216457130U CN202122665926.0U CN202122665926U CN216457130U CN 216457130 U CN216457130 U CN 216457130U CN 202122665926 U CN202122665926 U CN 202122665926U CN 216457130 U CN216457130 U CN 216457130U
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Abstract
The utility model relates to the field of catalysts, and discloses a molecular sieve slurry filtering system and a catalyst production line. Molecular sieve filtration system includes feeding tank (10), discharge tank (50), filtrating tank (40) and vertical plate and frame filter press (300), vertical plate and frame filter press has thick liquid import, filtrating export and blown down tank (350) and can with by the thick liquid import lets in the molecular sieve seriflux separation is solid material and liquid material, the feeding tank passes through circulating pump (20) and is connected to the thick liquid import in order can to vertical plate and frame filter press supplies the molecular sieve thick liquid, the discharge tank sets up to can receive by the blown down tank solid material, the filtrating tank passes through tube coupling to the filtrating export in order to receive by the liquid material of leaking out of filtrating export. This molecular sieve slurry filtration system has reduced the water content in the solid-state material, has the advantage that degree of automation is high.
Description
Technical Field
The utility model relates to the field of catalysts, in particular to a molecular sieve slurry filtering system. On the basis, the catalyst production line is also related.
Background
Natural aluminosilicates exist in nature and have molecular sieving, adsorption, ion exchange and catalytic effects. Such natural substances are called zeolites, and artificially synthesized zeolites are also called molecular sieves. The molecular sieve has the characteristics of high adsorption capacity, strong selectivity and high temperature resistance, and is widely applied to organic chemical industry and petrochemical industry.
However, when the molecular sieve slurry is subjected to solid-liquid separation by using a conventional horizontal plate and frame filter press, the viscosity of the molecular sieve slurry is high and the fluidity of the molecular sieve slurry is poor, so that the horizontal plate and frame filter press is often blocked. In addition, the filter cake is easy to thixotropy after pressure relief, the material is adhered to the plate frame in a fluid state, and the unloading is difficult, and a large amount of manual assistance is needed. Therefore, the solid-liquid separation of the molecular sieve slurry by using a suitable device and obtaining a good separation effect become the main targets to be solved at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a molecular sieve slurry filtering system which has the advantages of convenience in operation, uniformity in filtering and capability of obtaining a low-water-content solid material.
In order to achieve the above object, the present invention provides a molecular sieve slurry filtering system, which includes a feeding tank, a discharging tank, a filtrate tank, and a vertical plate and frame filter press, wherein the vertical plate and frame filter press has a slurry inlet, a filtrate outlet, and a discharging tank and can separate the molecular sieve slurry introduced from the slurry inlet into a solid material and a liquid material, the feeding tank is connected to the slurry inlet through a circulating pump so as to be capable of supplying the molecular sieve slurry to the vertical plate and frame filter press, the discharging tank is configured to be capable of receiving the solid material discharged from the discharging tank, and the filtrate tank is connected to the filtrate outlet through a pipeline so as to be capable of receiving the liquid material discharged from the filtrate outlet.
Optionally, vertical plate and frame filter press includes the multiunit filter plate subassembly that filter cloth, filter cloth washing tank and vertical direction were arranged, the one end of filter plate subassembly is provided with the filter cloth deflector roll, and adjacent set up on the filter plate subassembly the filter cloth deflector roll is located relative both ends, the filter cloth sets up to end and reciprocal winding extremely the filter cloth deflector roll with the outside of filter plate subassembly, the filter cloth washing tank has and holds the chamber, the filter cloth at least partially set up in hold the intracavity.
Optionally, vertical plate and frame filter press includes first filter cloth scraper and deflector roll scraper, first filter cloth scraper set up in the below of filter cloth and can strike off deviating from of this filter cloth the surface of filter cloth deflector roll, the deflector roll scraper set up in the filter plate subassembly with between the filter cloth deflector roll.
Optionally, the vertical plate-and-frame filter press comprises a filter cloth tensioning mechanism and a filter cloth deviation rectifying mechanism which are arranged in parallel in the horizontal direction, and the filter cloth is wound to the outer sides of the filter cloth tensioning mechanism and the filter cloth deviation rectifying mechanism in a reciprocating mode.
Optionally, a cleaning pipe and a cleaning shaft brush roller for cleaning the filter cloth are arranged in the filter cloth cleaning tank.
Optionally, the vertical plate-and-frame filter press comprises an upper pressing plate and a base which are vertically arranged, the filter plate assemblies are arranged between the upper pressing plate and the base, a hydraulic mechanism and a hanging plate are connected between the upper pressing plate and the base, two adjacent sets of filter plate assemblies are connected with each other through the hanging plate, the upper pressing plate can be driven by the hydraulic mechanism to be close to or away from the base, and therefore the filter plate assemblies are close to or away from each other through the hanging plate.
Optionally, a feed inlet and a drain outlet are formed on the filter plate assembly, the feed inlet is connected to the slurry inlet through a pipeline, the drain outlet is connected to the filtrate outlet through a pipeline, the lower surface of the filter plate assembly and the upper surface of the filter cloth are sealed to form a filter cavity for containing materials, and the feed inlet is connected to the filter cavity.
Optionally, the vertical plate-and-frame filter press comprises a high-pressure air inlet system, the high-pressure air inlet system is connected to the feed inlet through a pipeline, and high-pressure air is sprayed out to reduce the water content of the material in the filter cavity.
Optionally, the molecular sieve slurry is at least one of a silicoaluminophosphate molecular sieve slurry, a aluminophosphate molecular sieve slurry, and a silicoaluminophosphate molecular sieve slurry.
The utility model provides a catalyst production line, which comprises the molecular sieve slurry filtering system.
The molecular sieve slurry in the utility model is conveyed to the vertical plate-and-frame filter press by the feed tank through the circulating pump, and is separated into solid material and liquid material by the vertical plate-and-frame filter press, the solid material is collected by the discharge chute and then enters the discharge tank, and the liquid material flows to the filtrate tank.
Drawings
FIG. 1 is a schematic flow diagram of a molecular sieve slurry filtration system of the present invention;
fig. 2 is a schematic structural diagram of the vertical plate-and-frame filter press of the utility model.
Description of the reference numerals
10-a feed tank; 20-a circulating pump; 40-a filtrate tank; 50-discharging tank; 300-vertical plate and frame filter press; 301-filter cloth; 302-filter cloth guide rollers; 303-a first cloth scraper; 304-an upper platen; 305-hanging a plate; 306-guide roller scraper; 310-a filter cloth cleaning tank; 311-a cleaning tube; 312-wash shaft brush roll; 320-a filter plate assembly; 321-a feed inlet; 322-a water outlet; 330-filter cloth tensioning mechanism; 331-an upper sprocket; 332-tensioning the moving roller; 333-lower chain wheel; 340-a filter cloth deviation rectifying mechanism; 341-deviation rectifying cylinder travel switch; 342-a deviation rectifying cylinder; 350-a discharge chute; 351-second filter cloth scraper.
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As shown in fig. 1, the present invention provides a molecular sieve slurry filtering system, which comprises a feeding tank 10, a discharging tank 50, a filtrate tank 40 and a vertical plate and frame filter press 300, wherein the vertical plate and frame filter press 300 has a slurry inlet, a filtrate outlet and a discharging tank 350 and can separate the molecular sieve slurry introduced from the slurry inlet into a solid material and a liquid material, the feeding tank 10 is connected to the slurry inlet through a circulating pump 20 so as to be capable of supplying the molecular sieve slurry to the vertical plate and frame filter press 300, the discharging tank 50 is configured to be capable of receiving the solid material discharged from the discharging tank 350, and the filtrate tank 40 is connected to the filtrate outlet through a pipeline so as to be capable of receiving the liquid material discharged from the filtrate outlet.
The molecular sieve slurry in the utility model is conveyed to the vertical plate-and-frame filter press 300 from the feeding tank 10 through the circulating pump 20, and is separated into solid material and liquid material through the vertical plate-and-frame filter press 300, the solid material enters the discharging tank 50 after being collected by the discharging tank 350, the liquid material flows to the filtrate tank 40, the molecular sieve slurry filtering system realizes continuous operation of molecular sieve slurry filtering, reduces the water content in the solid material, and has the advantage of high automation degree. In the present invention, the discharge chutes 350 are disposed at both sides of the vertical plate and frame filter press 300.
As shown in fig. 2, the vertical plate-and-frame filter press 300 includes filter cloth 301, filter cloth wash tanks 310 and a plurality of sets of filter plate assemblies 320 arranged in the vertical direction, one end of each filter plate assembly 320 is provided with a filter cloth guide roller 302, and is adjacent to the filter cloth guide roller 302 arranged on the filter plate assembly 320, the filter cloth 301 is arranged in a way of connecting end to end and winding to the outside of the filter cloth guide roller 302 and the filter plate assembly 320 in a reciprocating manner, the filter cloth wash tanks 310 have a containing cavity, and the filter cloth 301 is at least partially arranged in the containing cavity.
Specifically, since the molecular sieve slurry has a high viscosity, the filter cloth cleaning tank 310 is provided to clean the material remaining on the filter cloth 301. Further, in order to enhance the cleaning effect of the filter cloth 301, a cleaning pipe 311 and a cleaning roller 312 for cleaning the filter cloth 301 are provided in the filter cloth cleaning tank 310.
With continued reference to fig. 2, in order to remove the residual material on the filter cloth 301, the vertical plate-and-frame filter press 300 includes a first filter cloth scraper 303, and the first filter cloth scraper 303 is disposed below the filter cloth 301 and can scrape off the surface of the filter cloth 301 away from the filter cloth guide roller 302. In addition, during the filtration of the molecular sieve slurry, a part of the solid materials may penetrate to the lower surface of the filter cloth 301, so that the filter cloth 301 is adhered to the filter cloth guide roller 302, and therefore, as a preferred embodiment, a guide roller scraper 306 is disposed between the filter plate assembly 320 and the filter cloth guide roller 302, and the guide roller scraper 306 is used for removing a part of the solid materials penetrating to the lower surface of the filter cloth 301, thereby solving the problem that the filter cloth 301 is adhered to the filter cloth guide roller 302. In addition, a second filter cloth scraper 351 is arranged on the discharge chute 350 to further remove the residual materials on the filter cloth 301.
In addition, the vertical plate-and-frame filter press 300 further comprises a filter cloth tensioning mechanism 330 and a filter cloth deviation rectifying mechanism 340 which are arranged in parallel in the horizontal direction, and the filter cloth 301 is wound to the outer sides of the filter cloth tensioning mechanism 330 and the filter cloth deviation rectifying mechanism 340 in a reciprocating manner. Specifically, the filter cloth tensioning mechanism 330 includes an upper sprocket 331, a lower sprocket 333, and a tensioning moving roller 332, the lower sprocket 333 is provided with a tensioning driving roller and a driving motor, and when the tensioning force of the filter cloth 301 is insufficient, the driving motor drives the tensioning driving roller to rotate and the tensioning moving roller 332 to move, so as to increase the tensioning force of the filter cloth 301. Further, the vertical plate-and-frame filter press 300 discharges the solid material into the discharge chute 350 through the operation of the filter cloth 301, and the filter cloth 301 deviates in the operation process of the filter cloth 301. The filter cloth deviation rectifying mechanism 340 comprises a deviation rectifying cylinder travel switch, a deviation rectifying cylinder and a deviation rectifying system sensor, when the filter cloth 301 deviates, the deviation rectifying system sensor can receive a deviation signal of the filter cloth 301, the deviation rectifying cylinder travel switch is turned on, so that the deviation rectifying cylinder moves, and the filter cloth 301 is restored to the original position through the movement of the deviation rectifying cylinder.
Further, vertical plate-and-frame filter press 300 includes the top board 304 and the base of vertical arrangement, filter plate subassembly 320 set up in the top board 304 with between the base, the top board 304 with be connected with hydraulic pressure mechanism and link plate 305 between the base, pass through between two sets of adjacent filter plate subassemblies 320 link to each other link plate 305, the top board 304 can be in be close to/keep away from under hydraulic pressure mechanism's the drive the base to make adjacent filter plate subassembly 320 be close to/keep away from each other through link plate 305. In addition, a displacement sensor is provided on the upper platen 304 to prevent the upper platen 304 from hitting the top device during the ascent.
In a preferred embodiment, a feed inlet 321 and a drain outlet 322 are formed on the filter plate assembly 320, the feed inlet 321 is connected to the slurry inlet through a pipeline, the drain outlet 322 is connected to the filtrate outlet through a pipeline, a filter cavity for containing materials is formed between the lower surface of the filter plate assembly 320 and the upper surface of the filter cloth 301 in a sealing manner, and the feed inlet 321 is connected to the filter cavity. Specifically, the molecular sieve slurry enters the vertical plate-and-frame filter press 300 from the slurry inlet, and then enters the feed port 321 through a pipeline with a valve, and the feed port 321 is connected to the filter cavity. Because the particle size of the solid material in the molecular sieve slurry is larger than the diameter of the filtering holes on the filtering cloth 301, the solid material in the molecular sieve slurry is intercepted to the inside of the filtering cavity, and the liquid material permeates to the water outlet 322 through the filtering cloth 301 and then flows to the filtrate outlet through a pipeline with a valve. As a preferred embodiment, the filter cloth 301 has a filter cloth pore size of 0.5 to 4 microns.
In the utility model, the lower surface of the filter plate assembly 320 is provided with a sealing structure, when molecular sieve slurry is filtered, the upper pressure plate 304 is driven by the hydraulic mechanism to approach the base, the filter plate assembly 320 is driven by the hanging plate 305 to move downwards, and the sealing structure is pressed to the upper surface of the filter cloth 301 by a certain pressure (squeezing pressure), so that the filter cavity is formed between the lower surface of the filter plate assembly 320 and the upper surface of the filter cloth 301 in a sealing manner. After the molecular sieve slurry is filtered, solid materials are formed on the upper surface of the filter cloth 301, the upper pressing plate 304 is driven by the hydraulic mechanism to be away from the base, the filter plate assembly 320 is driven by the hanging plate 305 to move upwards, the filter cavity disappears, and the filter cloth 301 is driven by the filter cloth guide roller 302 to operate, so that the solid materials on the filter cloth 301 are discharged into the discharge chutes 350 on the two sides. Wherein, the duration of the filter cavity is also called as the squeezing time.
To further reduce the water content of the solid materials in the filter chamber, in a preferred embodiment of the present invention, the vertical plate-and-frame filter press 300 includes a high pressure gas inlet system connected to the feed port 321 through a pipeline and spraying high pressure gas to reduce the water content of the materials in the filter chamber. In addition, as a preferred embodiment, the filter plate assembly 320 further includes a high-pressure water chamber having a water inlet, the high-pressure water chamber is disposed above the filter chamber and isolated from the filter chamber by a squeezing film, and the squeezing film is made of an elastic material. Specifically, high-pressure water is introduced into the high-pressure water cavity from the water inlet so that the squeezing membrane deforms downwards, and therefore solid materials in the filter cavity are further squeezed, and the water content of the solid materials is reduced.
In addition, the molecular sieve slurry in the utility model is at least one of silicon-phosphorus-aluminum molecular sieve slurry, phosphorus-aluminum molecular sieve slurry and silicon-aluminum molecular sieve slurry.
The utility model further provides a catalyst production line which comprises the molecular sieve slurry filtering system. The advantages of the catalyst production line and the molecular sieve slurry filtering system are the same compared with the prior art, and are not described again.
The following describes the comparison of the filtration effect of the molecular sieve slurry filtration system of the present invention with the filtration effect of the prior art on high viscosity silicoaluminophosphate molecular sieve SAPO-n slurry.
Wherein, the slurry inlet feeding pressure of the two is 0.45MPa, the slurry inlet feeding time is 60min, the squeezing pressure is 1.0MPa, the high-pressure gas inlet time is 12min, and the high-pressure gas inlet pressure is 0.3 MPa.
| Filtration mode | Vertical plate and frame filter pressing | Horizontal plate and frame filter pressing |
| Filtration area (m)2) | 50 | 200 |
| Squeezing pressure (MPa) | 1 | 1 |
| Pressing time(s) | 720 | 900 |
| Thickness of solid material (mm) | 30 | 20 |
| Solid content (%) | 65 | 55 |
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the utility model, numerous simple modifications can be made to the technical solution of the utility model, including combinations of the individual specific technical features in any suitable way. The utility model is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (10)
1. A molecular sieve slurry filtering system is characterized in that the molecular sieve slurry filtering system comprises a feeding tank (10), a discharging tank (50), a filtrate tank (40) and a vertical plate-and-frame filter press (300), the vertical plate-and-frame filter press (300) is provided with a slurry inlet, a filtrate outlet and a discharge chute (350) and can separate the molecular sieve slurry introduced from the slurry inlet into a solid material and a liquid material, the feed tank (10) is connected to the slurry inlet by a circulation pump (20) to enable supply of the molecular sieve slurry to the vertical plate and frame filter press (300), the discharge tank (50) is arranged to receive the solid material discharged from the discharge chute (350), the filtrate tank (40) is connected to the filtrate outlet by piping so as to be able to receive the liquid material discharged from the filtrate outlet.
2. The molecular sieve slurry filtering system according to claim 1, wherein the vertical plate-and-frame filter press (300) comprises a plurality of groups of filter plate assemblies (320) arranged in a vertical direction, a filter cloth cleaning tank (310), and a filter cloth guide roller (302), and is adjacent to the filter plate assemblies (320), the filter cloth guide roller (302) is located at two opposite ends, the filter cloth (301) is arranged in a way that the filter cloth guide roller (302) is connected end to end and is wound to the outside of the filter cloth guide roller (302) and the filter plate assemblies (320), the filter cloth cleaning tank (310) is provided with a containing cavity, and the filter cloth (301) is at least partially arranged in the containing cavity.
3. The molecular sieve slurry filtration system of claim 2, wherein the vertical plate and frame filter press (300) comprises a first filter cloth scraper (303) and a guide roller scraper (306), the first filter cloth scraper (303) is disposed below the filter cloth (301) and can scrape off a surface of the filter cloth (301) deviating from the filter cloth guide roller (302), the guide roller scraper (306) is disposed between the filter plate assembly (320) and the filter cloth guide roller (302).
4. The molecular sieve slurry filtration system according to claim 2, wherein the vertical plate-and-frame filter press (300) comprises a filter cloth tensioning mechanism (330) and a filter cloth deviation rectifying mechanism (340) which are arranged in parallel in the horizontal direction, and the filter cloth (301) is wound to the outer sides of the filter cloth tensioning mechanism (330) and the filter cloth deviation rectifying mechanism (340) in a reciprocating manner.
5. The molecular sieve slurry filtration system of claim 2, wherein a cleaning pipe (311) for cleaning the filter cloth (301) and a cleaning roller brush (312) are provided in the filter cloth cleaning tank (310).
6. The molecular sieve slurry filtering system according to claim 2, wherein the vertical plate-and-frame filter press (300) comprises an upper pressing plate (304) and a base which are vertically arranged, the filter plate assemblies (320) are arranged between the upper pressing plate (304) and the base, a hydraulic mechanism and a hanging plate (305) are connected between the upper pressing plate (304) and the base, two adjacent sets of the filter plate assemblies (320) are connected with each other through the hanging plate (305), the upper pressing plate (304) can be close to/far away from the base under the driving of the hydraulic mechanism, so that the adjacent filter plate assemblies (320) are close to/far away from each other through the hanging plate (305).
7. The molecular sieve slurry filtration system according to claim 2, wherein a feed inlet (321) and a drain outlet (322) are formed on the filter plate assembly (320), the feed inlet (321) is connected to the slurry inlet through a pipeline, the drain outlet (322) is connected to the filtrate outlet through a pipeline, a filter cavity for containing materials is formed between the lower surface of the filter plate assembly (320) and the upper surface of the filter cloth (301), and the feed inlet (321) is connected to the filter cavity.
8. The molecular sieve slurry filtration system of claim 7, wherein the vertical plate and frame filter press (300) comprises a high pressure gas inlet system connected to the feed port (321) by a pipeline and ejecting high pressure gas to reduce the water content of the material in the filter chamber.
9. The molecular sieve slurry filtration system of claim 1, wherein the molecular sieve slurry is at least one of a silicoaluminophosphate molecular sieve slurry, a aluminophosphate molecular sieve slurry, and a silicoaluminophosphate molecular sieve slurry.
10. A catalyst production line comprising a molecular sieve slurry filtration system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122665926.0U CN216457130U (en) | 2021-11-02 | 2021-11-02 | Molecular sieve slurry filtering system and catalyst production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122665926.0U CN216457130U (en) | 2021-11-02 | 2021-11-02 | Molecular sieve slurry filtering system and catalyst production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216457130U true CN216457130U (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122665926.0U Active CN216457130U (en) | 2021-11-02 | 2021-11-02 | Molecular sieve slurry filtering system and catalyst production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216457130U (en) |
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2021
- 2021-11-02 CN CN202122665926.0U patent/CN216457130U/en active Active
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