CN114985018A - Vehicle-mounted blast furnace gas catalyst regeneration system and regeneration method thereof - Google Patents
Vehicle-mounted blast furnace gas catalyst regeneration system and regeneration method thereof Download PDFInfo
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- CN114985018A CN114985018A CN202210447935.9A CN202210447935A CN114985018A CN 114985018 A CN114985018 A CN 114985018A CN 202210447935 A CN202210447935 A CN 202210447935A CN 114985018 A CN114985018 A CN 114985018A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 126
- 238000011069 regeneration method Methods 0.000 title claims abstract description 58
- 230000008929 regeneration Effects 0.000 title claims abstract description 52
- 238000010521 absorption reaction Methods 0.000 claims abstract description 45
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002699 waste material Substances 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims description 96
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 35
- 238000001816 cooling Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000000498 cooling water Substances 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 9
- 229910052717 sulfur Inorganic materials 0.000 claims description 8
- 239000011593 sulfur Substances 0.000 claims description 8
- 239000002351 wastewater Substances 0.000 claims description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000010926 purge Methods 0.000 claims description 3
- 230000001172 regenerating effect Effects 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000003518 caustics Substances 0.000 claims description 2
- 239000010865 sewage Substances 0.000 claims description 2
- 239000013589 supplement Substances 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/04—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
- B01J38/06—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst using steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/04—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/04—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
- B01J38/12—Treating with free oxygen-containing gas
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Abstract
The invention discloses a vehicle-mounted blast furnace gas catalyst regeneration system, which comprises a vehicle body serving as mobile equipment, wherein the top of the vehicle body is fixedly connected with a carriage, a processing mechanism for catalyst regeneration and a waste material unified recovery collecting mechanism are arranged in the carriage, two supporting modules are fixedly arranged at the bottom in the carriage, and a rotary regenerator and a rotary cooler are arranged in the processing mechanism. According to the invention, a catalyst needing regeneration processing can be activated and regenerated at a high temperature of 500 ℃ under the protection of N, elemental sulfur on the catalyst is liquefied by sulfur vapor at a high temperature and is swept and spilled by N, substances generated by processing are cooled and elemental sulfur is recovered by a tail gas absorption tower, and the catalytic performance of the regenerated catalyst is recovered and can be repeatedly used after the regenerated catalyst is cooled by a rotary cooler, so that the problems of low use efficiency of the existing blast furnace gas catalyst and inconvenience in use of a blast furnace gas catalyst regeneration system are avoided.
Description
Technical Field
The invention relates to the technical field of blast furnace gas regeneration, in particular to a vehicle-mounted blast furnace gas catalyst regeneration system and a regeneration method thereof.
Background
Blast furnace gas is a byproduct combustible gas in the blast furnace iron-making production process, and comprises the approximate components of carbon dioxide, carbon monoxide, hydrogen, nitrogen, hydrocarbons and sulfur dioxide, and a desulfurization catalyst is generally used in a blast furnaceAdsorption of H in coal gas 2 S。H 2 The method comprises the steps of converting S into elemental sulfur under the action of a catalyst taking activated carbon as a carrier, attaching the elemental sulfur to pores of the activated carbon, and regenerating the catalyst to recover the catalytic performance of the catalyst after the adsorption-conversion saturation of the catalyst, so as to achieve the effect of repeated use.
Disclosure of Invention
The invention aims to overcome the defects of low use efficiency of the existing blast furnace gas catalyst and inconvenient movement of a blast furnace gas catalyst regeneration system during use, and provides a vehicle-mounted blast furnace gas catalyst regeneration system and a regeneration method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a vehicle-mounted blast furnace gas catalyst regeneration system comprises a vehicle body serving as mobile equipment, wherein the top of the vehicle body is fixedly connected with a carriage, a processing mechanism for catalyst regeneration and a collecting mechanism for uniformly recovering waste materials are installed in the carriage, two supporting modules are fixedly installed at the bottom of the carriage, a rotary regenerator and a rotary cooler are arranged in the processing mechanism, the rotary cooler is fixedly connected to the top of one supporting module, a tail gas absorption tower is arranged in the collecting mechanism, the tail gas absorption tower is fixedly connected to the top of the other supporting module, one end of the rotary cooler is provided with a material conveying pipe, the other end of the material conveying pipe is fixedly connected to the tail gas absorption tower, the other end of the rotary cooler is detachably connected with a catalyst conveying pipe, and the bottom of the catalyst conveying pipe is provided with a linear vibrating screen, the device comprises a linear vibrating screen, a feeding lifting machine, a material bag and a control system, wherein a spiral conveyor is installed on one side of the linear vibrating screen, the feeding lifting machine is arranged at the bottom of the spiral conveyor, and the material bag is installed at the bottom of the feeding lifting machine and used for collecting regenerated catalyst.
Preferably, in order to carry out regeneration processing of the catalyst and improve the service efficiency of the catalyst, the processing mechanism comprises a catalyst inlet pipe fixedly installed in a carriage, the catalyst inlet pipe is fixedly connected with a spiral feeding pipe on one side, the upper part of one side of the carriage extends out of one side of the spiral feeding pipe, the other side of the catalyst inlet pipe is fixedly connected with a connecting flange, one side of the connecting flange is connected to a rotary regenerator through a flange, a protective hoop is fixedly sleeved on the connecting flange, the catalyst inlet pipe is sequentially communicated with a steam inlet pipe, a nitrogen inlet pipe and an air inlet pipe, the other side of the rotary regenerator is fixedly connected with a cooling transmission pipe, the cooling transmission pipe is provided with a control valve, and the other end of the cooling transmission pipe is communicated with a rotary cooler.
Preferably, for the convenience of catalyst regeneration processing use, the catalyst after the regeneration processing of being convenient for is sent into the rotary cooler, processing agency include that the catalyst of fixed mounting in the carriage advances the pipe, the catalyst advance one side fixedly connected with spiral conveying pipe of pipe, spiral conveying pipe one side extend the one side upper portion in carriage, the catalyst advances the opposite side fixedly connected with flange of pipe, flange one side flange joint on the rotary regenerator, flange on the fixed cover connect with the protection clamp, the catalyst advance and have the steam advance pipe, nitrogen gas advance the pipe and the air advance the pipe in proper order to communicate on the pipe, rotary regenerator opposite side fixedly connected with cooling transmission pipe, cooling transmission pipe on install the control valve, the other end and the rotary cooler intercommunication of cooling transmission pipe.
Preferably, in order to send the regenerated catalyst into a rotary cooler for cooling processing, cooling water is recycled, a cooling water inlet pipe is fixedly connected to the top of the rotary cooler, a cooling water circulating pipe is fixedly connected to the bottom of the rotary cooler, and a cooling water circulating pump is fixedly connected to the cooling water circulating pipe.
Preferably, in order to conveniently send the sulfur vapor overflowing from the processing into a tail gas absorption tower for filtering and recycling, the collecting mechanism comprises a tail gas draught fan fixedly connected with one side of the tail gas absorption tower, one side of the tail gas draught fan is fixedly connected with an emptying pipe, two filter pumps are fixedly connected with one side of the bottom of the tail gas absorption tower, precision filters are fixedly connected with one sides of the two filter pumps, the upper parts of the same sides of the two precision filters are jointly connected with a compressor, the middle parts of the same sides of the two precision filters are jointly connected with a sulfur paste discharge pipe, the other side of the bottom of the tail gas absorption tower is fixedly connected with two micro filters, one side of each of the two micro filters is fixedly connected with a washing circulating pump, and a waste water discharge pipe is fixedly connected to one side of the washing circulating pump, and the top of the tail gas absorption tower is sequentially communicated with a caustic soda flake inlet pipe and a process water inlet pipe.
Preferably, in order to facilitate the fixed installation of the rotary regenerator at the tops of the rotary cooler and the tail gas absorption tower, three protection cushion blocks are installed at equal intervals at the tops of the rotary cooler and the tail gas absorption tower, and the rotary regenerator is fixedly connected at the tops of the rotary cooler and the tail gas absorption tower through six protection cushion blocks.
Preferably, in order to facilitate the waste generated by the processing of the tail gas absorption tower to be discharged out of the carriage, a waste discharge pipe is fixedly connected to one side of the tail gas absorption tower, one side of the waste discharge pipe extends out of the lower part of one side of the carriage, and the waste water discharge pipe is communicated with the waste discharge pipe.
Preferably, in order to facilitate the movement of the blast furnace gas catalyst regeneration system, the carriage is stably mounted on the top of the vehicle body, thirteen cushion blocks are mounted on the top of the vehicle body and the bottom of the carriage at equal intervals, and eight bearing wheels are rotatably connected to the bottom of the vehicle body.
Preferably, in order to improve the working efficiency of the vehicle-mounted blast furnace gas catalyst regeneration system and determine the equipment model, the model of the linear vibrating screen is DZSF1020, the model of the spiral conveyer is LS350, and the models of the two precision filters are both SUH three-stage filters.
A vehicle-mounted blast furnace gas catalyst regeneration method comprises the following steps: the used catalyst is fed into the rotary regenerator through a spiral feeding pipe after preliminary weighing and metering, and the inside of the rotary regenerator begins to rise through supplying power by a matched industrial power supplyN and steam are simultaneously introduced into a rotary regenerator, a catalyst in the rotary regenerator is heated to 500 ℃ under the protection of the N, heat preservation is carried out for 3H, elemental sulfur adsorbed in the catalyst is blown over by the sulfur steam under the protection of the N at high temperature, the catalyst is activated and regenerated, after the processing procedure of the rotary regenerator is completed, a steam inlet pipe is closed, the regenerated catalyst is cooled to below 300 ℃ under the protection of the N, an induced draft fan is started, a nitrogen inlet pipe is simultaneously closed, the temperature is continuously reduced, when the temperature in the rotary regenerator is reduced to 150 ℃, the regenerated catalyst is heat preserved at the temperature, air is blown into the regeneration system for 1H, after the air is blown, the regenerated catalyst is discharged into the rotary cooler through a cooling conveying pipe, the temperature is cooled to below 50 ℃ through the water cooling in the rotary cooler, and the rotary cooler reversely conveys the regenerated catalyst through the catalyst conveying pipe, the regenerated catalyst falls on a linear vibrating screen, is sent into a charging lifter through a screw conveyer, is collected by a material bag at the bottom of the charging lifter and then is conveyed to a charging bin for reuse in H 2 And (4) S adsorption.
Preferably, in order to facilitate the regeneration processing of the catalyst in the rotary regenerator, the steam parameters in the steam inlet pipe are 0.4-0.7 MPa saturated steam and 1.3-1.7 t/h, the pipe diameter of the steam inlet pipe is DN200, the nitrogen parameters in the nitrogen inlet pipe are 1500Nm year/h-2000 Nm year/h, 0.4-0.7 MPa and 35-55 ℃, and the pipe diameter of the nitrogen inlet pipe is DN 300.
Compared with the prior art, the invention has the beneficial effects that:
1. the used catalyst is sent into a rotary regenerator, the catalyst is subjected to high-temperature activation regeneration at 500 ℃ under the protection of N, elemental sulfur on the catalyst is blown over by the N as sulfur vapor at high temperature, the processed substance is cooled and the elemental sulfur is recovered through a tail gas absorption tower, and the catalytic performance of the regenerated catalyst is recovered and can be reused after being cooled by the rotary cooler;
2. the blast furnace gas catalyst regeneration system is arranged in the carriage at the top of the vehicle body through the matching use of the vehicle body, the carriage, the bearing wheel and other parts, the power is provided by the vehicle body, the power of the engine is provided in the vehicle body in a matching way, the bearing wheel and the carriage are driven to move, the movement and the use of the blast furnace gas catalyst regeneration system are convenient, and the use efficiency of the blast furnace gas catalyst regeneration system is improved;
in conclusion, the blast furnace gas catalyst regeneration system can be installed in a carriage at the top of a vehicle body, the blast furnace gas catalyst regeneration system can be conveniently used in the blast furnace gas catalyst regeneration system, the use efficiency of the blast furnace gas catalyst regeneration system is improved, the used catalyst is conveyed into a rotary regenerator, the catalyst is subjected to high-temperature activation and regeneration at 500 ℃ under the protection of N, elemental sulfur on the catalyst is swept and overflowed by N through sulfur vapor at high temperature, substances generated by processing are cooled and recovered by an exhaust gas absorption tower, the catalytic performance of the regenerated catalyst is recovered after the regenerated catalyst is cooled by the rotary cooler, and the regenerated catalyst can be reused, so that the problems that the existing blast furnace gas catalyst is low in use efficiency and the blast furnace gas catalyst regeneration system is inconvenient to use are solved.
Drawings
Fig. 1 is an overall structural view of a vehicle-mounted blast furnace gas catalyst regeneration system according to the present invention;
FIG. 2 is a structural diagram of the interior of a vehicle-mounted blast furnace gas catalyst regeneration system according to the present invention; fig. 3 is a flow chart of the whole processing of the vehicle-mounted blast furnace gas catalyst regeneration system provided by the invention. In the figure: the device comprises a carriage 1, a spiral feeding pipe 2, a waste discharging pipe 3, a vehicle body 4, a bearing wheel 5, a connecting flange 6, a protective hoop 7, a rotary regenerator 8, a protective cushion block 9, a cooling and conveying pipe 10, a control valve 11, a rotary cooler 12, a support module 13, a material conveying pipe 14, a tail gas absorption tower 15, an emptying pipe 16, a tail gas induced draft fan 17, a sulfur paste discharging pipe 18, a compressor 19, a precision filter 20, a filter pump 21, a water vapor inlet pipe 22, a catalyst inlet pipe 23, a nitrogen inlet pipe 24, an air inlet pipe 25, a cooling water circulating pipe 26, an alkali inlet pipe 27, a process water inlet pipe 28, a waste water discharging pipe 29, a washing circulating pump 30, a cooling water inlet pipe 31, a catalyst conveying pipe 32, a linear vibrating screen 33, a spiral conveyor 34, a charging elevator 35 and a material bag 36.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example (b): the invention is further explained according to the attached drawings 1, 2 and 3, the vehicle-mounted blast furnace gas catalyst regeneration system of the embodiment comprises a vehicle body 4 used as a mobile device and used for providing integral support for the vehicle-mounted blast furnace gas catalyst regeneration system so as to facilitate the movement of the vehicle-mounted blast furnace gas catalyst regeneration system, the top of the vehicle body 4 is fixedly connected with a carriage 1 used for installing components such as a rotary regenerator 8, a rotary cooler 12, a tail gas recovery tower 15 and the like in the vehicle-mounted blast furnace gas catalyst regeneration system, a processing mechanism for catalyst regeneration and a collecting mechanism for uniformly recovering waste materials are installed in the carriage 1, two supporting modules 13 are fixedly installed at the bottom in the carriage 1, and the processing mechanism and the collecting mechanism are supported by the two supporting modules 13, meanwhile, the processing mechanism and the collecting mechanism are accommodated by matching pipelines and equipment, a rotary regenerator 8 and a rotary cooler 12 are arranged in the processing mechanism, the rotary cooler 12 is fixedly connected with the top of one of the supporting modules 13, a tail gas absorption tower 15 is arranged in the collecting mechanism, the tail gas absorption tower 15 is fixedly connected with the top of the other support module 13, one end of the rotary cooler 12 is provided with a material conveying pipe 14, the other end of the material conveying pipe 14 is fixedly connected to the tail gas absorption tower 15, the other end of the rotary cooler 12 is detachably connected with a catalyst conveying pipe 32, the bottom of the catalyst conveying pipe 32 is provided with a linear vibrating screen 33, one side of the linear vibrating screen 33 is provided with a screw conveyer 34, the bottom of the screw conveyor 34 is provided with a charging lifter 35, and the bottom of the charging lifter 35 is provided with a material bag 36 for collecting regenerated catalyst.
The processing mechanism comprises a catalyst inlet pipe 23 fixedly arranged in a carriage 1, wherein one side of the catalyst inlet pipe 23 is fixedly connected with a spiral feeding pipe 2, one side of the spiral feeding pipe 2 extends out of the upper part of one side of the carriage 1, the other side of the catalyst inlet pipe 23 is fixedly connected with a connecting flange 6, one side of the connecting flange 6 is connected to a rotary regenerator 8 through a flange, a protective hoop 7 is fixedly sleeved on the connecting flange 6, the catalyst inlet pipe 23 is sequentially communicated with a steam inlet pipe 22, a nitrogen inlet pipe 24 and an air inlet pipe 25, the other side of the rotary regenerator 8 is fixedly connected with a cooling transfer pipe 10, a control valve 11 is arranged on the cooling transfer pipe 10, and the other end of the cooling transfer pipe 10 is communicated with a rotary cooler 12.
In the present invention, the top of the rotary cooler 12 is fixedly connected with a cooling water inlet pipe 31, the bottom of the rotary cooler 12 is fixedly connected with a cooling water circulating pipe 26, and the cooling water circulating pipe 26 is fixedly connected with a cooling water circulating pump.
In the invention, the collecting mechanism comprises a tail gas induced draft fan 17 fixedly connected with one side of the tail gas absorption tower 15, one side of the tail gas induced draft fan 17 is fixedly connected with an emptying pipe 16, one side of the bottom of the tail gas absorption tower 15 is fixedly connected with two filter pumps 21, one side of each filter pump 21 is fixedly connected with a precision filter 20, the upper parts of the same sides of the two precision filters 20 are jointly connected with a compressor 19, the middle parts of the same sides of the two precision filters 20 are jointly connected with a sulfur paste discharge pipe 18, the other side of the bottom of the tail gas absorption tower 15 is fixedly connected with two micro filters, one side of the two micro filters is fixedly connected with a washing circulating pump 30, a waste water discharge pipe 29 is fixedly connected to one side of the washing circulating pump 30, and the top of the tail gas absorption tower 15 is sequentially communicated with a caustic soda flake inlet pipe 27 and a process water inlet pipe 28. In the invention, three protective cushion blocks 9 are arranged on the tops of the rotary cooler 12 and the tail gas absorption tower 15 at equal intervals, and the rotary regenerator 8 is fixedly connected to the tops of the rotary cooler 12 and the tail gas absorption tower 15 through six protective cushion blocks 9. In the present invention, a waste discharge pipe 3 is fixedly connected to one side of the exhaust gas absorption tower 15, one side of the waste discharge pipe 3 extends out of the lower portion of one side of the carriage 1, and the waste water discharge pipe 29 is communicated with the waste discharge pipe 3.
In the invention, thirteen buffer cushion blocks are arranged at equal intervals between the top of the car body 4 and the bottom of the carriage 1, and eight bearing wheels 5 are rotatably connected to the bottom of the car body 4.
In the invention, the model of the linear vibrating screen 33 is DZSF1020, the model of the spiral conveyer 34 is LS350, and the models of the two precision filters 20 are SUH three-stage filters.
In the invention, the steam parameter in the steam inlet pipe 22 is 0.6MPa saturated steam and is 1.5t/h, the diameter of the steam inlet pipe 22 is DN200, the nitrogen parameter in the nitrogen inlet pipe 24 is 1800Nm ethanol/h, 0.6MPa and 50 ℃, and the diameter of the nitrogen inlet pipe 24 is DN 3000.
In the invention, the regeneration process of the blast furnace gas catalyst comprises the following steps:
the catalyst to be regenerated is fed into a rotary regenerator 8 through a spiral feeding pipe 2 after being subjected to preliminary weighing and metering, power used for the operation of a vehicle-mounted blast furnace gas catalyst regeneration system is provided through a matched industrial power supply, the temperature of the interior of the rotary regenerator 8 starts to rise, N and water vapor are introduced into the rotary regenerator 8, the catalyst in the rotary regenerator 8 is heated to 500 ℃ under the protection of the N, the temperature is kept for 3H, elemental sulfur adsorbed in the catalyst is blown and overflowed by the N at high temperature, the catalyst is activated and regenerated, after the processing procedure of the rotary regenerator 8 is completed, a water vapor inlet pipe 22 is closed, the regenerated catalyst is cooled to below 300 ℃ under the protection of the N, an induced draft fan is started, a nitrogen inlet pipe 24 is closed, the temperature is continuously reduced, and when the temperature in the rotary regenerator 8 is reduced to 150 ℃, the temperature of the regenerated catalyst is kept for heat preservation, air purging 1H is connected into a regeneration system, after air purging, regenerated catalyst is discharged into a rotary cooler 12 through a cooling transmission pipe 10, is cooled to below 50 ℃ through water in the rotary cooler 12, is reversely conveyed through a catalyst transmission pipe 32 by the rotary cooler 12, falls on a linear vibrating screen 33, is conveyed into a charging lifter 35 through a screw conveyor 34, is collected through a material bag 36 at the bottom of the charging lifter 35, is conveyed to a charging bin, and is repeatedly used for H 2 And (4) S adsorption.
The regeneration system processes the sulfur vapor and the sulfur dioxide to produce sulfur dioxideThe material conveying pipe 14 is conveyed into a tail gas absorption tower 15, is cooled by process water in the tail gas absorption tower 15, reacts with flake caustic in the tail gas absorption tower 15 to separate out elemental sulfur and absorb a small amount of H in tail gas 2 S and SO 2 The gas is sent out through a waste discharge pipe 3 connected with a waste discharge pipe 29 after being treated, the sulfur paste is recovered through two precision filters 20, the process water filtered by the micro filters is powered by a washing circulating pump 30, and is circulated into a tail gas absorption tower 15 again to be used as process water supplement and is periodically discharged to an owner sewage treatment system for unified treatment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A vehicle-mounted blast furnace gas catalyst regeneration system comprises a vehicle body (4) serving as mobile equipment, and is characterized in that the top of the vehicle body (4) is fixedly connected with a carriage (1), a processing mechanism for catalyst regeneration and a collecting mechanism for uniformly recovering waste materials are installed in the carriage (1), two supporting modules (13) are fixedly installed at the bottom of the carriage (1), a rotary regenerator (8) and a rotary cooler (12) are arranged in the processing mechanism, the rotary cooler (12) is fixedly connected to the top of one of the supporting modules (13), a tail gas absorption tower (15) is arranged in the collecting mechanism, the tail gas absorption tower (15) is fixedly connected to the top of the other supporting module (13), one end of the rotary cooler (12) is provided with a material conveying pipe (14), and the other end of the material conveying pipe (14) is fixedly connected to the tail gas absorption tower (15), the other end of the rotary cooler (12) is detachably connected with a catalyst conveying pipe (32), the bottom of the catalyst conveying pipe (32) is provided with a linear vibrating screen (33), one side of the linear vibrating screen (33) is provided with a spiral conveyer (34), the bottom of the spiral conveyer (34) is provided with a charging lifter (35), and the bottom of the charging lifter (35) is provided with a material bag (36) used for collecting regenerated catalyst.
2. The vehicle-mounted blast furnace gas catalyst regeneration system as claimed in claim 1, wherein the processing mechanism comprises a catalyst inlet pipe (23) fixedly installed in the carriage (1), one side of the catalyst inlet pipe (23) is fixedly connected with a spiral feeding pipe (2), one side of the spiral feeding pipe (2) extends out of the upper part of one side of the carriage (1), the other side of the catalyst inlet pipe (23) is fixedly connected with a connecting flange (6), one side of the connecting flange (6) is connected with a rotary regenerator (8) in a flange manner, a protective hoop (7) is fixedly sleeved on the connecting flange (6), the catalyst inlet pipe (23) is sequentially communicated with a steam inlet pipe (22), a nitrogen inlet pipe (24) and an air inlet pipe (25), the other side of the rotary regenerator (8) is fixedly connected with a cooling transmission pipe (10), the cooling transmission pipe (10) is provided with a control valve (11), and the other end of the cooling transmission pipe (10) is communicated with a rotary cooler (12).
3. The vehicle-mounted blast furnace gas catalyst regeneration system according to claim 2, wherein a cooling water inlet pipe (31) is fixedly connected to the top of the rotary cooler (12), a cooling water circulating pipe (26) is fixedly connected to the bottom of the rotary cooler (12), and a cooling water circulating pump is fixedly connected to the cooling water circulating pipe (26).
4. The vehicle-mounted blast furnace gas catalyst regeneration system according to claim 1, wherein the collecting mechanism comprises a tail gas draught fan (17) fixedly connected to one side of the tail gas absorption tower (15), a drain pipe (16) is fixedly connected to one side of the tail gas draught fan (17), two filter pumps (21) are fixedly connected to one side of the bottom of the tail gas absorption tower (15), precision filters (20) are fixedly connected to one sides of the two filter pumps (21), a compressor (19) is commonly connected to the upper parts of the same sides of the two precision filters (20), a sulfur paste discharge pipe (18) is commonly connected to the middle parts of the same sides of the two precision filters (20), two micro filters are fixedly connected to the other side of the bottom of the tail gas absorption tower (15), and a washing and circulating pump (30) is fixedly connected to one side of the two micro filters, and a waste water discharge pipe (29) is fixedly connected to one side of the washing circulating pump (30), and the top of the tail gas absorption tower (15) is sequentially communicated with a caustic soda flake inlet pipe (27) and a process water inlet pipe (28).
5. The vehicle-mounted blast furnace gas catalyst regeneration system according to claim 1, wherein three protective cushion blocks (9) are arranged on the tops of the rotary cooler (12) and the tail gas absorption tower (15) at equal intervals, and the rotary regenerator (8) is fixedly connected to the tops of the rotary cooler (12) and the tail gas absorption tower (15) through six protective cushion blocks (9).
6. The vehicle-mounted blast furnace gas catalyst regeneration system according to claim 4, wherein a waste discharge pipe (3) is fixedly connected to one side of the tail gas absorption tower (15), one side of the waste discharge pipe (3) extends out of the lower part of one side of the carriage (1), and the waste water discharge pipe (29) is communicated with the waste discharge pipe (3).
7. The vehicle-mounted blast furnace gas catalyst regeneration system as claimed in claim 1, wherein thirteen cushion blocks are installed on the top of the vehicle body (4) and the bottom of the carriage (1) at equal intervals, and eight bearing wheels (5) are rotatably connected to the bottom of the vehicle body (4).
8. The vehicle-mounted blast furnace gas catalyst regeneration system as claimed in claim 1 or 4, wherein the linear vibrating screen (33) is of model DZSF1020, the screw conveyor (34) is of model LS350, and both the two fine filters (20) are of model SUH three-stage filters.
9. A method for regenerating a blast furnace gas catalyst according to claim 1, wherein the method for regenerating a catalyst comprises: the used catalyst is fed into a rotary regenerator (8) through a spiral feeding pipe (2) after preliminary weighing and metering, electric power is provided through a matched industrial power supply, the temperature of the interior of the rotary regenerator (8) begins to rise, N and steam are simultaneously introduced into the rotary regenerator (8), the catalyst in the rotary regenerator (8) is heated to 500 ℃ under the protection of N, the temperature is kept for 3H, elemental sulfur adsorbed in the catalyst is swept and overflowed by the N under high temperature, the catalyst is activated and regenerated, after the processing procedure of the rotary regenerator (8) is completed, a steam inlet pipe (22) is closed, the regenerated catalyst is cooled to below 300 ℃ under the protection of N, an induced draft fan is started, a nitrogen inlet pipe (24) is closed, the temperature is continuously reduced, when the temperature in the rotary regenerator (8) is reduced to 150 ℃, the temperature of the regenerated catalyst is kept for heat preservation under the temperature, and 1H is blown into a regeneration system, after air purging, the regenerated catalyst is discharged into a rotary cooler (12) through a cooling transmission pipe (10), is cooled to below 50 ℃ through water cooling in the rotary cooler (12), the rotary cooler (12) reversely rotates and is conveyed through a catalyst transmission pipe (32) to the regenerated catalyst, so that the regenerated catalyst falls on a linear vibrating screen (33), is conveyed into a charging lifter (35) through a screw conveyor (34), is collected through a material bag (36) at the bottom of the charging lifter (35), is conveyed to a charging bin (37), and is repeatedly used for H 2 S adsorption;
the overflowing sulfur vapor generated by the processing of the regeneration system is sent into a tail gas absorption tower (15) through a material conveying pipe (14), cooled by process water in the tail gas absorption tower (15), and reacts with flake caustic in the tail gas absorption tower (15) to separate out elemental sulfur and absorb a small amount of H in the tail gas 2 S and SO2 gases are treated and then sent out through a waste discharge pipe (3) connected with a waste water discharge pipe (29), sulfur paste is recovered through two precision filters (20), process water filtered by a micro filter is powered by a washing circulating pump (30), and then the process water is treatedThe secondary circulation is fed into a tail gas absorption tower (15) to be used as process water supplement and is periodically discharged to an owner sewage treatment system for uniform treatment.
10. The vehicle-mounted blast furnace gas catalyst regeneration method according to claim 9, wherein the steam parameters in the steam inlet pipe (22) are 0.4MPa-0.7MPa saturated steam and 1.3t/h-1.7t/h, the pipe diameter of the steam inlet pipe (22) is DN200, the nitrogen parameters in the nitrogen inlet pipe (24) are 1500Nm year/h-2000 Nm year/h, 0.4MPa-0.7MPa, and 35 ℃ -55 ℃, and the pipe diameter of the nitrogen inlet pipe (24) is DN 300.
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