CN216295382U - A purification and separation system that is used for MTO device catalytic gasification catalyst to retrieve - Google Patents
A purification and separation system that is used for MTO device catalytic gasification catalyst to retrieve Download PDFInfo
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- CN216295382U CN216295382U CN202020930018.2U CN202020930018U CN216295382U CN 216295382 U CN216295382 U CN 216295382U CN 202020930018 U CN202020930018 U CN 202020930018U CN 216295382 U CN216295382 U CN 216295382U
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Abstract
The invention belongs to the technical field of energy conservation and environmental protection of MTO devices, and discloses a purification and separation system for recovering catalytic gasification catalysts of an MTO device, which at least comprises a group of purification and separation filters, an automatic control unit and a valve bank; the purifying and separating filter is provided with an inlet, an outlet, a back-flushing cleaning port and a slag and ash discharging port, a filtering and separating element and a back-flushing cleaning element are installed inside the purifying and separating filter, the automatic control unit can control the opening and closing of any automatic control valve in the valve bank, the valve bank comprises a first automatic control valve, a second automatic control valve, a third automatic control valve and a fourth automatic control valve, the first control valve is arranged on an inlet pipeline of the purifying and separating filter, the second automatic control valve is arranged on an outlet pipeline of the purifying and separating filter, the third automatic control valve is arranged on a back-flushing cleaning port pipeline of the purifying and separating filter, and the fourth automatic control valve is arranged on a slag and ash discharging port pipeline of the purifying and separating filter.
Description
Technical Field
The invention relates to the technical field of energy conservation and environmental protection of MTO devices, in particular to a purification and separation system for recovering catalytic gasification catalysts of MTO devices.
Background
At present, an MTO process is a newly developed production process technology in a coal chemical industry chain, the number of devices under construction in China is less than 5, and the built devices are still in a test operation stage at present and do not achieve stable production operation.
In the existing purification treatment process of catalytic gasification catalyst solution of an MTO device, filter residue treatment is basically carried out by adopting plate-and-frame filter press equipment, and the filter press is open equipment, so that liquid splashes and smell diffuses due to extrusion during operation, and the working environment is poor; the filter pressing equipment is large in size, the number of filter cloth is large, the cleaning and replacing frequency is high, the parking is frequent, and the cost is extremely high no matter early-stage investment or later-stage maintenance is carried out; the filter cloth is limited by the existing filter cloth material, generally has low filtering precision and is difficult to meet the feeding requirement of subsequent process equipment.
Accordingly, there is a need in the art for a clean-up separation system for catalytic gasification catalyst recovery for an MTO unit that addresses the above-mentioned problems.
Disclosure of Invention
In the existing purification treatment process of catalytic gasification catalyst solution of an MTO device, filter residue treatment is basically carried out by adopting plate-and-frame filter press equipment, and the filter press is open equipment, so that liquid splashes and smell diffuses due to extrusion during operation, and the working environment is poor; the filter pressing equipment is large in size, the number of filter cloth is large, the cleaning and replacing frequency is high, the parking is frequent, and the cost is extremely high no matter early-stage investment or later-stage maintenance is carried out; the filter cloth is limited by the existing filter cloth material, generally has low filtering precision and is difficult to meet the feeding requirement of subsequent process equipment. In order to solve the above problems in the prior art, the present invention provides a purification and separation system for recycling catalyst of an MTO unit, comprising at least a set of purification and separation filters, an automatic control unit and a valve set; the purifying and separating filter is provided with an inlet, an outlet, a back-flushing cleaning port and a slag and ash discharging port, a filter element and a back-flushing cleaning element are installed inside the purifying and separating filter, the automatic control unit can control the opening and closing of any automatic control valve, the valve bank comprises a first automatic control valve, a second automatic control valve, a third automatic control valve and a fourth automatic control valve, the first control valve is arranged on an inlet pipeline of the purifying and separating filter, the second automatic control valve is arranged on an outlet pipeline of the purifying and separating filter, the third automatic control valve is arranged on a back-flushing cleaning port pipeline of the purifying and separating filter, and the fourth automatic control valve is arranged on a slag and ash discharging port pipeline of the purifying and separating filter.
In the above preferred technical scheme of a purification and separation system for recovering catalytic gasification catalyst of an MTO device, a pore plate is arranged inside a purification and separation filter, a filter element is installed on the pore plate, the pore plate divides the filter into a first cavity and a second cavity, the first cavity is provided with an inlet, the second cavity is provided with an outlet, the bottom of the first cavity is provided with a slag discharging and ash discharging port, and the second cavity is provided with a back flushing cleaning port.
In the preferred technical scheme of the purification and separation system for recovering the catalytic gasification catalyst of the MTO device, the filter element is of a cylindrical structure, the first end of the filter element is of a closed structure, and the second end of the filter element is of an open structure; the filter core material is the metal material, and the filter core changes original shape after receiving external force, and when external force was cancelled, the filter core can resume original shape.
In the above preferred technical solution of the purification and separation system for recycling catalytic gasification catalyst of an MTO device, the automatic control unit is a PLC automatic control unit, the PLC automatic control unit is electrically connected to the first automatic control valve, the second automatic control valve, the third automatic control valve and the fourth automatic control valve, respectively, and the PLC automatic control unit can control opening and closing of the first automatic control valve, the second automatic control valve, the third automatic control valve and the fourth automatic control valve.
In the above preferred technical scheme of the purification and separation system for recovering the catalytic gasification catalyst of the MTO device, the purification and separation filters are respectively provided with a plurality of online back-flushing cleaning pipes, and the back-flushing cleaning pipes are arranged at back-flushing cleaning ports of the purification and separation filters.
In the above preferred technical scheme of the purification and separation system for recycling the catalytic gasification catalyst of the MTO device, both the inlet pipeline and the outlet pipeline of the purification and separation filter are provided with pressure measurement devices, and the pressure measurement devices are electrically connected with the automatic control unit and feed back pressure signals to the automatic control unit.
In the above preferred embodiment of the purification and separation system for recycling catalytic gasification catalyst of an MTO device, the pressure measuring device at the inlet pipeline of the purification and separation filter is a first pressure measuring device, and the first pressure measuring device is disposed on the inlet pipeline and located at the rear end of the first automatic control valve.
In the above preferred technical solution of the purification and separation system for recycling catalytic gasification catalyst of the MTO device, the pressure measuring device at the outlet pipeline of the purification and separation filter is a second pressure measuring device, and the second pressure measuring device is disposed on the outlet pipeline and located at the front end of the second automatic control valve.
In the above preferred technical solution of the purification and separation system for recycling the catalytic gasification catalyst of the MTO device, the body of the purification and separation filter is provided with a temperature measuring device, and the temperature measuring device is electrically connected to the automatic control unit and feeds back a temperature signal to the automatic control unit.
In the above preferred technical scheme of the purification and separation system for recycling catalytic gasification catalyst of the MTO device, the automatic control unit adopts a control mode of mutual cooperation of pressure difference control and time control, wherein the control mode of mutual cooperation of pressure difference control and time control is that a plurality of purification and separation filters which are installed in parallel and operate control the opening of a third automatic control valve at the back flushing cleaning port by detecting the pressure difference between an inlet and an outlet, and simultaneously sets the time value of back flushing cleaning.
It can be understood by those skilled in the art that in the preferred technical solution of the purification and separation system for recycling catalytic gasification catalyst of an MTO unit according to the present invention, the purification and separation filter of the purification and separation system for recycling catalytic gasification catalyst of an MTO unit uses a high-precision purification and separation filter element with high pollutant receiving capacity, high pressure bearing capacity and easy cleaning to replace the existing plate-and-frame filter press equipment, and therefore, the purification and separation filter has great practical significance and considerable economic value in recycling catalyst of an MTO unit, reducing operation cost, saving water resource, and the like. The purification and separation system for recovering the catalytic gasification catalyst of the MTO device can realize the online back flushing regeneration of the purification and separation filter, reduce the shutdown times and greatly reduce the operation cost. The method solves the technical problem that the catalyst of the existing MTO device can not stably operate after being recycled, and creates a feasible technical route for realizing continuous and stable operation of the MTO device.
(1) And the existing plate and frame filter press process is operated in an open mode, liquid and gas are scattered and splashed, and the working environment is poor. The purification and separation system can be carried out under a closed condition, so that liquid splashing and gas dispersion are avoided;
(2) the filter cloth in the plate-and-frame filter press in the traditional process is used as a purification separation element, the labor intensity of installation and replacement is high, the pressure-bearing strength of the cloth bag is poor, the cloth bag is easily punctured by hard particles, and after perforation, slag enters a subsequent system to cause equipment abrasion, scaling and the like. The purification and separation system of the invention takes the high-precision metal filter element as the purification and separation element, has large filtration area, small equipment volume, high pressure resistance, no perforation, corrosion resistance and long service life of the whole equipment.
(3) In the traditional process, if filter cloth is pierced, each filter bag needs to be detected one by one and replaced due to the huge number of the cloth bags, so that the labor intensity is high. The filter element in the purification and separation system is high-temperature resistant and high in strength, slag particles are intercepted on the smooth surface, perforation is avoided, the service life is long, and the labor intensity is low.
(4) The traditional process has the advantages of large quantity of filter cloth, high manufacturing cost, high replacement and cleaning frequency, large water consumption, large amount of cleaning sewage, high labor intensity of cleaning, installation and replacement operations, large workload and high labor cost. The purification and separation system can realize online back flushing by automatically controlling to open the back flushing port, has long service life of the filter element and reduces the frequency of entering equipment for maintenance. The filter element is independently installed in the equipment, and personnel can enter the equipment to disassemble and assemble the filter element in a single mode during maintenance, so that hoisting machinery and crane equipment are not needed, the replacement operation is simple, the labor is saved, and the like.
(5) And the filter cake of the filter cloth in the traditional process is difficult to peel off, even the filter cake can smoothly fall off only by adding a filter aid, if the filter cake can not automatically fall off, the filter cake needs to be considered to be maintained and peeled off, the working process is unstable, and the automatic operation is difficult to realize. The purification and separation system can realize online back flushing by opening the back flushing port through the automatic control system, and completely realize automatic operation.
(6) The purification and separation system can realize the parallel connection of a plurality of filters, and each filter device can be a standby device, so that the normal filtration of the system is not influenced during back flushing and single device maintenance;
(7) the back-blowing gas adopts nitrogen or compressed air, and can also adopt filtered liquid, and the back-blowing gas is introduced from an outlet pipeline for back-blowing (shown by a dotted line part in figure 1), so that the energy is saved;
(8) the filter residues discharged by back flushing are collected to a residue collecting area in a centralized manner, and are discharged to a designated position in a pipeline conveying manner after back flushing for multiple times, so that the condition that each device needs to discharge residues every time back flushing is avoided;
(9) the air consumption for back flushing is small, the time is short, and the back flushing regeneration efficiency is high.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
FIG. 1 is a first pipeline flow diagram of a purification and separation system for catalyst recovery in an MTO plant according to the present invention;
FIG. 2 is a second pipeline flow diagram of the clean-up separation system for catalyst recovery of an MTO unit according to the present invention;
reference numerals: 1. a purification separation filter; 2. an inlet; 3. an outlet; 4. a back flushing cleaning port; 5. a slag and ash discharging port; 6. a filter element; 7. a first automatic control valve; 8. a second automatic control valve; 9. a third automatic control valve; 10. a fourth automatic control valve; 11. a first pressure measurement device; 12. a second pressure measurement device; 13. a temperature measuring device.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "in", "upper", "lower", "lateral", "inner", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the existing catalytic gasification catalyst solution purification treatment process of the MTO device pointed out based on the background technology, filter residue treatment is basically carried out by adopting plate-and-frame filter press equipment, and the filter press is open equipment, so that liquid splashing and odor diffusion can be caused by extrusion during operation, and the working environment is poor; the filter pressing equipment is large in size, the number of filter cloth is large, the cleaning and replacing frequency is high, the parking is frequent, and the cost is extremely high no matter early-stage investment or later-stage maintenance is carried out; the filter cloth is limited by the existing filter cloth material, generally has low filtering precision and is difficult to meet the feeding requirement of subsequent process equipment. According to the purification and separation system for recovering the catalytic gasification catalyst of the MTO device, the purification and separation filter adopts the high-pressure-bearing high-precision purification and separation filter element which is easy to clean to replace or supplement the existing plate-and-frame filter pressing equipment, so that the purification and separation system has great practical significance and considerable economic value on the recovery of the catalytic gasification catalyst of the MTO device, the reduction of the operation cost, the saving of water resources and the like. The purification and separation system for recovering the catalytic gasification catalyst of the MTO device can realize the online back flushing regeneration of the purification and separation filter, reduce the shutdown times and greatly reduce the operation cost. The method solves the technical problem that the catalytic gasification catalyst of the existing MTO device cannot stably operate when being recycled, and creates a feasible technical route for realizing continuous and stable operation of the MTO device. The separation system can be used for filtering under a closed condition, so that liquid splashing and gas dispersion are avoided; the separation system of the invention takes the high-precision metal filter element as the purification and separation element, has large filtration area, small equipment volume, high pressure resistance, no perforation, corrosion resistance and long service life of the whole equipment. The filter element in the separation system provided by the invention is high-temperature resistant and high in strength, slag particles are intercepted on the smooth surface, no perforation is caused, the service life is long, and the labor intensity is low. The filtering system can realize online back flushing by automatically controlling to open the back flushing port, has long service life of the filter element, and reduces the frequency of entering equipment for maintenance. The filter element is independently installed in the equipment, and personnel can enter the equipment to disassemble and assemble the filter element in a single mode during maintenance, so that hoisting machinery and crane equipment are not needed, the replacement operation is simple, the labor is saved, and the like. The filtering system of the purification and separation system can realize online back flushing by opening the back flushing port through the automatic control system, and completely realize automatic operation. The purification and separation system can realize the parallel connection of a plurality of filters, and each filter device can be a standby device, so that the normal filtration of the system is not influenced during back flushing and single device maintenance; the back-blowing gas adopts nitrogen or compressed air, and can also adopt filtered liquid, and the back-blowing gas is introduced from an outlet pipeline for back-blowing, so that the energy is saved; the filter residues discharged by back flushing are collected to a residue collecting area in a centralized manner, and are subjected to centralized treatment after back flushing for multiple times, and are discharged to a designated position in a pipeline conveying manner, so that the condition that each device needs to discharge residues every time back flushing is avoided; the air quantity used for back flushing is small, the time is short, and the back flushing regeneration efficiency is high.
Specifically, as shown in fig. 1 and 2, the purification and separation system for recovering catalytic gasification catalyst of an MTO device of the present invention at least comprises a group of purification and separation filters 1, an automatic control unit and a valve bank (a plurality of groups are connected to a main pipeline in a parallel installation manner, and each filter device can be a backup device for each other, so as to ensure that normal filtration of the system is not affected during back flushing and single device maintenance); the purifying and separating filter 1 is provided with an inlet 2, an outlet 3, a back-blowing cleaning port 4 and a slag and ash discharging port 5, a filter element and a back-blowing cleaning element are arranged inside the purifying and separating filter 1, the automatic control unit can control the opening and closing of any automatic control valve, the valve bank comprises a first automatic control valve 7, a second automatic control valve 8, a third automatic control valve 9 and a fourth automatic control valve 10, the first control valve is arranged on the inlet 2 pipeline of the purifying and separating filter 1, the second automatic control valve 8 is arranged on the outlet pipeline 3 of the purifying and separating filter 1, the third automatic control valve 9 is arranged on the back-blowing cleaning port pipeline 4 of the purifying and separating filter 1, and the fourth automatic control valve 10 is arranged on the slag and ash discharging port pipeline 5 of the purifying and separating filter 1. In the present invention, the first automatic control valve 7, the second automatic control valve 8, the third automatic control valve 9 and the fourth automatic control valve 10 are prior art. The specific working process is as follows: dirty catalyst solution gets into purification separation filter 1 from purification separation filter 1's entry 2, after filtering separation component (filter core 6) interception slag charge, clean catalyst solution flows out by export 3, filter separation component blocks up the back blow gas or the liquid after straining is carried out online cleaning and is resumeed by blowback purge orifice 4, the filter residue is discharged by sediment ash discharge orifice 5 under the blowing of interception, carry out centralized processing again after the blowback many times, adopt the mode of pipeline transport to discharge to the assigned position, all need arrange the sediment to handle when avoiding every equipment blowback.
Preferably, the purification and separation filter 1 is internally provided with a pore plate, the filter element 6 is installed on the pore plate, the pore plate divides the filter into a first cavity and a second cavity, the first cavity is provided with an inlet 2, the second cavity is provided with an outlet 3, the bottom of the first cavity is provided with a slag discharging and ash discharging port 5, and the second cavity is provided with a back flushing cleaning port 4.
In the invention, the internal structure of the filter is divided into two schemes, wherein the first scheme is shown in figure 1, a first cavity and a second cavity are arranged up and down, the first cavity is arranged below, the second cavity is arranged above, the first cavity is provided with an inlet 2, the second cavity is provided with an outlet 3, the bottom of the first cavity is provided with a slag and ash discharging port 5, and the top of the second cavity is provided with a back flushing cleaning port 4; the second scheme is as shown in fig. 2, the first chamber and the second chamber are arranged inside and outside, the second chamber is arranged inside the first chamber, the first lower chamber is provided with an inlet 2, the second upper chamber is provided with an outlet 3, the bottom of the first chamber is provided with a slag discharging and ash discharging port 5, and the second chamber is provided with a back flushing cleaning port 4. These two ways achieve the object of the present invention, but the purge effect of the second aspect is superior to that of the first aspect.
Preferably, the filter element 6 is a cylindrical structure, a first end of the filter element 6 is a closed structure, and a second end of the filter element 6 is an open structure; the filter element 6 is made of metal, the original shape of the filter element 6 is changed after the filter element is acted by external force, and the original shape of the filter element 6 can be restored after the external force is cancelled.
Preferably, the automatic control unit is a PLC automatic control unit, and the PLC control unit may be installed on site, or may be remotely connected to a DCS (distributed control system) for centralized control by using the DCS. The PLC automatic control unit is electrically connected with the first automatic control valve 7, the second automatic control valve 8, the third automatic control valve 9 and the fourth automatic control valve 10 respectively, and can control the opening and closing of the first automatic control valve 7, the second automatic control valve 8, the third automatic control valve 9 and the fourth automatic control valve 10.
Preferably, the purification and separation filters 1 are all provided with a plurality of online blowback cleaning pipes, and the blowback cleaning pipes are arranged at blowback cleaning ports 4 of the purification and separation filters 1. The on-line back-blowing cleaning pipe orifice and pipeline can be connected with the clean catalyst solution main pipe of the filter outlet 3, and can also be independently connected with a common engineering pipeline of nitrogen or compressed air, and the nitrogen or compressed air is used as a back-blowing cleaning gas medium.
Preferably, as shown in fig. 1, the inlet pipe 2 and the outlet pipe 3 of the purification separation filter 1 are each provided with a pressure measuring device, and the pressure measuring devices are electrically connected with the automatic control unit and feed back pressure signals to the automatic control unit. In the present invention, the pressure measuring device is a prior art, and the pressure measuring device is a pressure sensor.
Preferably, as shown in fig. 1 and 2, the pressure measuring device at the inlet pipe 2 of the purification separation filter 1 is a first pressure measuring device 11, and the first pressure measuring device 11 is provided on the inlet pipe 2 at the rear end of the first automatic control valve 7.
Preferably, as shown in fig. 1 and 2, the pressure measuring device at the outlet pipe 3 of the purification separation filter 1 is a second pressure measuring device 12, and the second pressure measuring device 12 is provided on the outlet pipe 3 at the front end of the second automatic control valve 8.
Preferably, as shown in fig. 1 and 2, the body of the purification and separation filter 1 is provided with a temperature measuring device 13, and the temperature measuring device 13 is electrically connected with the automatic control unit and feeds back a temperature signal to the automatic control unit. In the present invention, the temperature measuring device 13 is a conventional device, and the temperature measuring device 13 is a temperature sensor.
Preferably, the automatic control unit adopts a control mode of mutual cooperation of pressure difference control and time control, the control mode of mutual cooperation of pressure difference control and time control is that a plurality of purification separation filters which are installed in parallel and operate control the opening of a third automatic control valve 9 at the back flushing cleaning port 4 by detecting the pressure difference of the inlet 2 and the outlet 3, and simultaneously, the time value of back flushing cleaning is set, and when the time value is reached, even if the pressure difference value of the inlet 2 and the outlet 3 does not reach the condition that the back flushing cleaning port 4 is opened, the automatic control unit still starts to execute the back flushing cleaning action on the filter element.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (9)
1. A purification and separation system for recovering catalytic gasification catalyst of an MTO device is characterized by at least comprising a group of purification and separation filters, an automatic control unit and a valve group; the purifying and separating filter is provided with an inlet, an outlet, a back-flushing cleaning port and a slag and ash discharging port, a filter element and a back-flushing cleaning element are installed inside the purifying and separating filter, the automatic control unit can control the opening and closing of any automatic control valve, the valve bank comprises a first automatic control valve, a second automatic control valve, a third automatic control valve and a fourth automatic control valve, the first control valve is arranged on an inlet pipeline of the purifying and separating filter, the second automatic control valve is arranged on an outlet pipeline of the purifying and separating filter, the third automatic control valve is arranged on a back-flushing cleaning port pipeline of the purifying and separating filter, and the fourth automatic control valve is arranged on a slag and ash discharging port pipeline of the purifying and separating filter.
2. The purification and separation system for recovering the catalytic gasification catalyst of the MTO device according to claim 1, wherein a pore plate is arranged inside the purification and separation filter, the filter element is mounted on the pore plate, the pore plate divides the filter into a first chamber and a second chamber, the first chamber is provided with an inlet, the second chamber is provided with an outlet, the bottom of the first chamber is provided with a slag and ash discharging port, and the second chamber is provided with a back flushing cleaning port.
3. The purification and separation system for recovering the catalytic gasification catalyst of the MTO device according to claim 2, wherein the filter element is of a cylindrical structure, the first end of the filter element is of a closed structure, and the second end of the filter element is of an open structure; the filter core material is the metal material, and the filter core changes original shape after receiving external force, and when external force was cancelled, the filter core can resume original shape.
4. The purification and separation system for recovery of catalyst used in catalytic gasification of MTO device according to claim 1, wherein the automatic control unit is a PLC automatic control unit electrically connected to the first, second, third and fourth automatic control valves, respectively, and capable of controlling the opening and closing of the first, second, third and fourth automatic control valves.
5. The purification and separation system for recovering the catalytic gasification catalyst of the MTO device according to claim 1, wherein the purification and separation filters are provided with a plurality of online back-blowing cleaning pipes, and the back-blowing cleaning pipes are arranged at back-blowing cleaning ports of the purification and separation filters.
6. The clean-up separation system for recovering catalyst of catalytic gasification of MTO device according to claim 1, wherein the inlet pipeline and the outlet pipeline of the clean-up separation filter are provided with pressure measuring devices, and the pressure measuring devices are electrically connected with the automatic control unit and feed back pressure signals to the automatic control unit.
7. The clean-up separation system for recovery of catalyst for catalytic gasification of an MTO device according to claim 6, wherein the pressure measuring device at the inlet line of the clean-up separation filter is a first pressure measuring device disposed on the inlet line at the rear end of the first automatic control valve.
8. The clean-up separation system for recovery of catalyst for catalytic gasification of an MTO device according to claim 6, wherein the pressure measuring device at the outlet conduit of the clean-up separation filter is a second pressure measuring device disposed on the outlet conduit at a front end of the second automatic control valve.
9. The clean-up separation system for recovering catalyst of catalytic gasification of MTO device according to claim 1, wherein the body of the clean-up separation filter is provided with a temperature measuring device, the temperature measuring device is electrically connected with the automatic control unit, and the temperature signal is fed back to the automatic control unit.
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| CN202020930018.2U CN216295382U (en) | 2020-05-27 | 2020-05-27 | A purification and separation system that is used for MTO device catalytic gasification catalyst to retrieve |
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| CN202020930018.2U CN216295382U (en) | 2020-05-27 | 2020-05-27 | A purification and separation system that is used for MTO device catalytic gasification catalyst to retrieve |
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