CN217773809U - Continuous filtration system of hydrogenation catalyst - Google Patents

Abstract

The utility model discloses a continuous filtration system of hydrogenation catalyst, including first precision filter and second precision filter, first precision filter and second precision filter upper end both sides communicate respectively has the gaseous blowback line of admitting air and the exhaust line of giving vent to anger, first precision filter and second precision filter middle part intercommunication have the filter liquor discharge line, and filter liquor discharge line middle part intercommunication have the pressure material line, first precision filter and second precision filter lower extreme intercommunication remain filtrating feed line, first precision filter and second precision filter end intercommunication row cinder line; the catalyst is subjected to high-efficiency continuous filtration, the intercepting efficiency can reach 99.8 percent, the precision can reach 0.1um, the catalyst with the particle size of 0.5um and above can be recovered to reach 99.8 percent, the on-line continuous filtration and full-automatic operation of the catalyst can be realized, the manual operation is reduced, and the usability of the device is improved.

Description

Continuous filtration system of hydrogenation catalyst

Technical Field

The utility model relates to a filtration equipment technical field especially relates to a hydrogenation catalyst continuous filtration system.

Background

When the hydrogenation catalyst is filtered, the hydrogenation catalyst is generally filtered by a filtering device, and the existing filtering device can basically meet daily use requirements, but still has some defects to be improved.

The traditional catalyst rough separation generally uses a settling tank or a bag filter or a paper filter, the equipment has low cost, large occupied area, difficult washing of filter cakes, difficult unloading of thin-layer filter cakes, quick abrasion of filter elements, easy blockage, frequent replacement, extremely troublesome use, low treatment efficiency, consumption of a large amount of time and labor, and greatly increased total cost input. And the small-particle catalyst leaks and cannot be continuously filtered, so that the production efficiency of the device is greatly reduced, and the continuous filtering system for the hydrogenation catalyst is provided.

Disclosure of Invention

In order to overcome the not enough of prior art, the utility model provides a continuous filtration system of hydrogenation catalyst filters the hydrogenation catalyst repeatedly through first precision filter and second precision filter, improves the filter effect.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a continuous filtration system of hydrogenation catalyst, includes first precision filter and second precision filter, first precision filter and second precision filter upper end both sides communicate respectively has the gaseous blowback line of admitting air and the exhaust line of giving vent to anger, first precision filter and second precision filter middle part intercommunication have strain clear liquid discharge line, and strain clear liquid discharge line middle part intercommunication and have a material pressing line, first precision filter and second precision filter lower extreme intercommunication remain filtrating material feeding line, first precision filter and second precision filter end intercommunication slag discharge line, and slag discharge line middle part is connected with the solvent line, first precision filter and second precision filter middle part and the relative one side of straining clear liquid discharge line install the pressure differential machine, liquid level switch is all installed on first precision filter and second precision filter top, first precision filter and second precision filter inside all is provided with the metal film filter core, treat filtrating material feeding line, solvent line, gaseous blowback line, exhaust line, pressure material line and strain clear liquid discharge line all are fixed with the pneumatic valve.

As a preferred technical scheme of the utility model, it all installs the sight glass to strain clear liquid ejection of compact line and be close to a precision filter and second precision filter side end.

As an optimal technical scheme of the utility model, the metal film filter core includes metal powder sintering filter core, wire mesh sintering filter core, metal tectorial membrane sintering filter core.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

1. the continuous filtering system for the hydrogenation catalyst can continuously filter the catalyst with high efficiency, can reach 99.8 percent of interception efficiency, can reach 0.1um in precision, can reach 99.8 percent of catalyst with particle size of 0.5um and above, can realize online continuous filtering and full-automatic operation of the catalyst, reduce manual operation and improve the usability of the device.

Drawings

FIG. 1 is a schematic view of the frame structure of the present invention;

fig. 2 is an enlarged schematic structural diagram of a point a in fig. 1 according to the present invention.

Wherein: 1. a first precision filter; 2. a second precision filter; 3. feeding a material line to be filtered; 4. a solvent line; 5. a gas blowback line; 6. an exhaust line; 7. a material pressing line; 8. discharging filtered liquid; 9. a slag discharge line; 10. a sight glass; 11. a differential pressure machine; 12. a liquid level switch; 13. a pneumatic valve; 14. a metal membrane filter element.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

referring to fig. 1-2, a continuous filtration system for a hydrogenation catalyst comprises a first precision filter 1 and a second precision filter 2, wherein both sides of the upper ends of the first precision filter 1 and the second precision filter 2 are respectively communicated with an air inlet back-blowing line 5 and an air outlet line 6, the air back-blowing line 5 can be a nitrogen back-blowing line, the middle parts of the first precision filter 1 and the second precision filter 2 are communicated with a filtrate discharge line 8, the middle part of the filtrate discharge line 8 is communicated with a pressure line 7, the lower ends of the first precision filter 1 and the second precision filter 2 are communicated with a to-be-filtered liquid feeding line 3, the tail ends of the first precision filter 1 and the second precision filter 2 are communicated with a residue discharge line 9, the middle part of the residue discharge line 9 is connected with a solvent line 4, a pressure difference machine 11 is installed on a flange on the side of the middle parts of the first precision filter 1 and the second precision filter 2 opposite to the filtrate discharge line 8, liquid level switches 12 are installed on the top ends of the first precision filter 1 and the second precision filter 2, metal film filters 14 are installed inside the first precision filter 1 and the second precision filter 2, the to-be-filtered liquid feeding line 5, the air back-blowing line 6 and the air back-blowing line 6 are installed with the pressure line 13.

In other embodiments, the end parts of the filtered liquid outlet line 8 close to the first precision filter 1 and the second precision filter 2 are both provided with a sight glass 10 in a threaded manner, and the sight glass 10 is convenient for observing the liquid flowing in the filtered liquid outlet line 8.

In other embodiments, the metal membrane cartridge 14 comprises a metal powder sintered cartridge, a metal wire mesh sintered cartridge, a metal membrane-coated sintered cartridge.

The utility model discloses the theory of operation is: when the filtration system works, firstly, a pneumatic valve 13 which is installed on a feed line 3 and an exhaust line 6 and is threaded is opened, hydrogenation mother liquor is filled into a first precision filter 1 through the feed line 3, air in the first precision filter 1 is exhausted through the exhaust line 6, when a liquid level switch 12 detects that liquid in the first precision filter 1 is full, the pneumatic valve 13 which is installed on the exhaust line 6 and is threaded is closed, the pneumatic valve 13 which is installed on a filtrate discharge line 8 and is threaded is opened, the hydrogenation mother liquor is enabled to pass through a metal membrane filter element 14, filtered filtrate is exhausted through a filtrate discharge line 8, meanwhile, catalyst in the hydrogenation mother liquor is remained on the surface of the metal membrane filter element 14 to form filter cakes, the filtered filtrate of the metal membrane filter element 14 flows into a downstream process, as the filtration is continuously carried out, the filtrate attached to the surface of the metal membrane filter element 14 is continuously increased in pressure difference, so that the first filter 1 is thickened, the filtrate in the first precision filter 2 is filled into a second precision filter 2, the second precision filter 2 is filled with the filtrate, the filtrate 2, when the filtrate 2 which is filtered by the second precision filter 2 and is connected with the second precision filter 2, the filtrate which is filled with the second precision filter 2, the filtrate, and is connected with the second precision filter 2, closing a pneumatic valve 13 on an exhaust line 6 communicated with a second precision filter 2, closing a pneumatic valve 13 installed on a screw thread on a filtrate discharging line 8 connected with a first precision filter 1, simultaneously opening a pneumatic valve 13 installed on a solvent line 4 and a material pressing line 7 communicated with the first precision filter 1, replacing residual hydrogenation mother liquor in the first precision filter 1, after the replacement is finished, closing the pneumatic valve 13 installed on the screw thread on the solvent line 4 and the material pressing line 7 communicated with the first precision filter 1, after the replacement of the pressure material in the first precision filter 1 is finished, opening the pneumatic valve 13 installed on the screw thread on a gas back-blowing line 5 communicated with the first precision filter 1, increasing the pressure of nitrogen to 0.3MPa to 0.5MPa, opening the pneumatic valve 13 installed on the screw thread on a slag discharging line 9 communicated with the first precision filter 1, flushing the surface of a metal film filter element 14 with compressed nitrogen discharged through the gas line 5, thereby enabling the regenerated metal film filter element 14 to reach the requirement of flushing, and improving the efficiency of the filter cake discharged through the filter cake after the back-blowing line 1 and the filter cake discharging filter 2 are respectively connected with the first precision filter 1, and the back-blowing line 1, and the filter 2.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (3)

1. A continuous filtration system for hydrogenation catalyst, comprising a first precision filter (1) and a second precision filter (2), characterized in that: two sides of the upper ends of the first precise filter (1) and the second precise filter (2) are respectively communicated with an air inlet blowback line (5) and an air outlet exhaust line (6), the middle parts of the first precision filter (1) and the second precision filter (2) are communicated with a filtered liquid discharging line (8), the middle part of a clear liquid discharge line (8) is communicated with a material pressing line (7), the lower ends of the first precision filter (1) and the second precision filter (2) are communicated with a material feeding line (3) for filtrate, the tail ends of the first precision filter (1) and the second precision filter (2) are communicated with a slag discharge line (9), and the middle part of the deslagging line (9) is connected with a solvent line (4), one sides of the middle parts of the first precise filter (1) and the second precise filter (2) opposite to the filtered liquid discharging line (8) are provided with a differential pressure machine (11), the top ends of the first precision filter (1) and the second precision filter (2) are both provided with a liquid level switch (12), the first precise filter (1) and the second precise filter (2) are internally provided with metal membrane filter elements (14), and pneumatic valves (13) are fixed on the to-be-filtered liquid feeding line (3), the solvent line (4), the gas back-blowing line (5), the exhaust line (6), the material pressing line (7) and the filtered liquid discharging line (8).

2. The continuous filtration system of claim 1, wherein: and the end part of one side of the clear filtrate discharging line (8) close to the first precision filter (1) and the second precision filter (2) is provided with a sight glass (10).

3. The continuous filtration system of claim 1, wherein: the metal membrane filter element (14) comprises a metal powder sintered filter element, a metal wire mesh sintered filter element and a metal coating sintered filter element.

Images