CN116550097A - Complete equipment for zeolite waste gas treatment - Google Patents
Complete equipment for zeolite waste gas treatment Download PDFInfo
- Publication number
- CN116550097A CN116550097A CN202310846654.5A CN202310846654A CN116550097A CN 116550097 A CN116550097 A CN 116550097A CN 202310846654 A CN202310846654 A CN 202310846654A CN 116550097 A CN116550097 A CN 116550097A
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- zeolite
- bottom plate
- plate
- equipment
- movable
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- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 105
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 239000010457 zeolite Substances 0.000 title claims abstract description 105
- 239000002912 waste gas Substances 0.000 title claims abstract description 33
- 238000003795 desorption Methods 0.000 claims abstract description 58
- 238000001179 sorption measurement Methods 0.000 claims abstract description 56
- 230000008929 regeneration Effects 0.000 claims abstract description 43
- 238000011069 regeneration method Methods 0.000 claims abstract description 43
- 238000002485 combustion reaction Methods 0.000 claims abstract description 31
- 239000007789 gas Substances 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 239000003054 catalyst Substances 0.000 claims abstract description 8
- 229910000510 noble metal Inorganic materials 0.000 claims abstract description 7
- 239000000919 ceramic Substances 0.000 claims abstract description 6
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 6
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 6
- 238000005192 partition Methods 0.000 claims description 23
- 239000012530 fluid Substances 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000005452 bending Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3408—Regenerating or reactivating of aluminosilicate molecular sieves
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to the field of waste gas separation treatment equipment, in particular to zeolite waste gas treatment complete equipment, which structurally comprises zeolite adsorption equipment, filtering equipment, desorption equipment and combustion equipment, wherein a ceramic-based carrier Pt and Pd noble metal type catalyst is filled in the combustion equipment, a side baffle plate assembly is arranged in a shell and matched with a middle baffle plate to form a regeneration area and a desorption area, the side baffle plate assembly is controlled by a driving assembly to control the sizes of the regeneration area and the desorption area, a movable frame of the driving assembly moves on a screw rod and a sliding rail, a movable plate separated from the movable frame descends along with a bottom plate when the movable frame slides and passes through a swinging part, and the bottom plate swings and descends by taking a bottom end connection point as a fulcrum, so that the range of the regeneration area and the desorption area is enlarged until the movable plate is hooked and sagged off from the movable frame, the space of the regeneration area and the desorption area is enlarged, the contact surface of the gas passing through a zeolite runner is enlarged, and more zeolite runner desorption treatment capacity is achieved in the same time.
Description
Technical Field
The invention relates to the field of waste gas separation treatment equipment, in particular to zeolite waste gas treatment complete equipment.
Background
The zeolite waste gas adsorption concentration treatment complete equipment in China starts later, the comprehensive level of the equipment industry is improved or even exceeds the international leading level, the zeolite waste gas adsorption concentration treatment complete equipment is remarkably helpful for improving the treatment level and the equipment level of high-air-quantity, medium-low-concentration VOCs in the industries such as domestic coating and the like, and the development of the domestic industrial organic waste gas treatment industry is promoted.
In the development of the whole set of zeolite adsorption concentration equipment, the development of equipment technology, treatment process and catalyst are important parts, and are key contents affecting waste gas treatment, wherein an optimization matching scheme of a concentration system for desorption regeneration and a combustion oxidation system is still to be perfected, the treatment capacity in unit time can be improved, in addition, in the complete set of treatment equipment in the prior art, a regeneration zone, a desorption zone and a most important adsorption zone are separated on the working face of a zeolite rotating wheel, as separation plates among all the zones are fixed and are not communicated with each other, the existing equipment is generally separated by a proportion of ensuring that the main adsorption function is mainly used for separating the three zones according to the adsorption zone range and the desorption zone range, and the treatment capacity in unit time is limited by the regeneration zone and the desorption zone when the zeolite rotating wheel is subjected to desorption regeneration, so that the combustion oxidation system at the rear end is not always saturated or always not in a high-load treatment state, thereby prolonging the whole treatment time in unit time, and improving the waste gas treatment capacity in unit time.
Disclosure of Invention
In view of the above problems, the present invention provides a zeolite exhaust gas treatment plant, the structure of which comprises: the zeolite adsorption equipment comprises a shell and a zeolite rotating wheel arranged in the shell, and an air outlet of the rear stage of the zeolite adsorption equipment is connected with a chimney through a pipeline;
the filtering equipment is arranged at the front stage of the zeolite adsorption equipment through a pipeline;
the desorption device comprises a heat exchanger, wherein one fluid channel of the heat exchanger is connected with the rear stage of the zeolite adsorption device;
a combustion apparatus comprising a burner and a burner for combustion by the burner, a gas discharge conduit of the combustion apparatus being connected to the other fluid passage of the heat exchanger and being further connected to the chimney by the other fluid passage of the heat exchanger;
the combustion equipment is internally filled with a Pt and Pd noble metal catalyst of a ceramic-based carrier and is used for reacting with waste gas in a matched manner, middle partition plates are arranged at the front end and the rear end of a zeolite rotating wheel in a shell, side partition plate assemblies are arranged at two sides of the middle partition plates, the side partition plate assemblies and the middle partition plates are matched with each other at the front side and the rear side of the zeolite rotating wheel to form a regeneration zone and a desorption zone, and ventilation ports are arranged on the shell where the regeneration zone and the desorption zone are located;
the side baffle assembly can move, the area ranges of the regeneration area and the desorption area at the front end and the rear end of the zeolite rotating wheel change along with the movement of the side baffle assembly, and the top end of the shell is provided with a driving assembly connected with the side baffle assembly.
Further, the filtering device is provided with two pipelines at the front end of the zeolite adsorption device, one pipeline is directly connected with the shell, the other pipeline is connected with the regeneration zone of the zeolite adsorption device, the regeneration zone of the rear stage of the zeolite adsorption device is connected with the desorption device and is further connected to the desorption zone of the rear stage of the zeolite adsorption device, and the desorption zone of the front stage of the zeolite adsorption device is connected with the combustion device.
Further, the side baffle assembly comprises a bottom plate and a movable plate movably connected with the bottom plate, the bottom end of the bottom plate is movably connected with the middle baffle, the movable plate at the tail end in the movable plate which is connected with the bottom plate is movably connected with the inner top wall of the shell, and at least three movable plates are arranged.
Further, the length of the bottom plate is greater than the length of the movable plate, the weight of the bottom plate is greater than the weight of the movable plate, the first movable plate connected to the top end of the bottom plate is not attached to the inner top wall of the shell, and the sum of the lengths of the bottom plate and the first movable plate is greater than the distance from the bottom end of the bottom plate to the second movable plate on the inner top wall of the shell.
Further, the bottom of bottom plate carries out airtight connection with the middle baffle, airtight connection carries out between bottom plate and the fly leaf, airtight contact carries out between the side end of bottom plate, the side end and the top of fly leaf and the shell, the junction airtight connection that bottom plate and middle baffle, bottom plate and fly leaf has the connecting strip that can take place elastic deformation.
Further, the embedding is equipped with the gib block on bottom plate and the fly leaf, inside the gib block is equipped with the guide way, the gib block is equipped with the swing portion in the junction of bottom plate and fly leaf, be equipped with the track groove on the shell roof that the gib block upwards corresponds, drive assembly includes the fly frame and installs the supporting wheel on the fly frame, the fly frame passes the track groove to the shell inside, the supporting wheel nestification on the fly frame is in the gib block.
Further, the portion of the top end of the swinging part, which is hooked by the supporting wheel, adopts a strip or a chain.
Further, the top is equipped with the guide strip in the swing portion, the middle part and the swing portion middle part fixed connection of guide strip, the guide strip is the bed hedgehopping setting in the swing portion, the guide strip both ends contact with the roof in the guide strip, the length of guide strip is greater than the length of swing portion.
Further, the driving assembly comprises a motor, a screw rod connected with the motor and a sliding rail arranged in parallel with the screw rod, the movable frame is arranged on the screw rod and the sliding rail, and the movable frame is in threaded connection with the screw rod.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention adopts the driving component to control the side baffle component to control the sizes of the regeneration zone and the desorption zone at the front end of desorption treatment, before the waste gas sent by the filtering equipment enters the regeneration zone, the motor of the driving component drives the screw rod to rotate, thereby driving the movable frame to move on the screw rod and the sliding rail and move towards the edge of the shell, the supporting wheel of the movable frame hooks the movable plate in the guiding strip, when the movable frame slides and passes through the swinging part, the movable plate which is separated from the movable frame descends along with the bottom plate, the bottom plate swings and descends with the bottom end connecting point as a fulcrum, thereby expanding the range of the regeneration zone until the movable plate is separated from the movable frame to hang down, expanding the space of the regeneration zone, and the desorption zone is also the same, and expanding the contact surface of the gas passing through the zeolite rotating wheel.
2. The invention is characterized in that the desorbed waste gas is sent into the combustion equipment to be matched with the increased desorption treatment capacity, so that the waste gas is combusted with the Pt and Pd noble metal type catalyst of the ceramic-based carrier filled in the combustion furnace, the increased waste gas quantity at the front end is received, and the high-efficiency treatment of the desorbed waste gas at the rear end can be ensured, and more waste gas treatment capacity is achieved in the same time.
3. When the regeneration zone and the desorption zone do not need to be used, the movable frame moves in the guide bar to drive the movable plate to rise, some movable plates droop, the included angle between the two movable plates is smaller than 90 degrees, the supporting wheel firstly enters the range of the guide bar when passing through the swinging part, and then the supporting wheel presses the guide bar and the swinging part to drive the next movable plate to swing, so that the next movable plate swings to the horizontal and is hooked by the supporting wheel, the supporting wheel can impact the swinging part instead of pulling the swinging part and the movable plate to move upwards, and the blocking of the regeneration zone and the desorption zone to the zeolite runner is reduced, so that the adsorption range of the zeolite runner is enlarged, and the newly adsorbed waste gas reaches more treatment capacity in the same time compared with the prior art.
Drawings
FIG. 1 is an overall schematic of a zeolite exhaust treatment plant of the present invention.
Fig. 2 is a schematic three-dimensional structure of a zeolite turning wheel device in the prior art.
Fig. 3 is a three-dimensional schematic of a zeolite rotor in the plant of the present invention.
FIG. 4 is a schematic front view of a side dam assembly of the present invention in two operational configurations.
FIG. 5 is a schematic three-dimensional view of the driving assembly and the side barrier assembly of the present invention.
Fig. 6 is a schematic side cross-sectional view of a portion of the structure of fig. 5.
In the figure: 1. a filtering device; 2. a zeolite adsorption device; 3. a desorption device; 4. a combustion apparatus; 5. a chimney; 6. an adsorption fan; 7. a desorption fan; 8. fresh air blower;
2a, a regeneration zone; 2b, a desorption zone; 2c, a track groove; 21. a housing; 22. a zeolite wheel; 23. a middle partition plate; 24. a side barrier assembly; 25. a drive assembly; 26. a vent; 27. a guide bar;
241. a bottom plate; 242. a movable plate; 243. a connecting strip;
251. a movable frame; 252. a support wheel; 253. a motor; 254. a screw rod; 255. a slide rail;
27a, a guide groove; 27b, a swinging part; 27c, guide strips.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Examples: as shown in fig. 1 to 6, the present invention provides a zeolite exhaust gas treatment plant, the structure of which comprises: the zeolite adsorption equipment 2, the zeolite adsorption equipment 2 includes the shell 21 and installs the zeolite runner 22 in the shell 21, the shell 21 of the zeolite adsorption equipment 2 mainly has an air inlet and air outlet, thus form an air current channel through zeolite runner 22, an air outlet of the back stage of the zeolite adsorption equipment 2 is connected with chimney 5 through the pipeline, furthermore, there are intermediate baffles 23 in the front and back ends of zeolite runner 22 in the shell 21, there are side baffle assemblies 24 in the two sides of intermediate baffle 23, side baffle assembly 24 cooperates with intermediate baffle 23 in the front and back sides of zeolite runner 22 to form regeneration zone 2a and desorption zone 2b, it is known that regeneration zone 2a and desorption zone 2b form an air current channel through zeolite runner 22 separately, there are air vents 26 on the shell 21 where regeneration zone 2a and desorption zone 2b are located, this air current channel is passed in and out by the air vents 26;
the filtering device 1 is arranged at an air inlet of a front stage of the zeolite adsorption device 2 through a pipeline, after paint spraying waste gas is discharged, the filtering device 1 performs primary filtering treatment, and then enters the zeolite adsorption device 2, the filtering device 1 is provided with two pipelines at the front end of the zeolite adsorption device 2, a reversing valve is arranged at the front end of the two pipelines to control the opening and closing of the two pipelines, one of the pipelines is directly connected with the shell 21, and the other pipeline is connected with a regeneration zone 2a of the zeolite adsorption device 2, which is known by a person skilled in the art;
the desorption device 3, the desorption device 3 comprises a heat exchanger, one fluid channel of the heat exchanger is connected with the rear stage of the zeolite adsorption device 2, the regeneration zone 2a of the rear stage of the zeolite adsorption device 2 is connected with the desorption device 3 and is further connected to the desorption zone 2b of the rear stage of the zeolite adsorption device 2, namely, paint spraying waste gas enters from the regeneration zone 2a zone and passes through the zeolite runner 22 and then enters the heat exchanger of the desorption device 3, and after the temperature is raised, enters the desorption zone 2b of the zeolite adsorption device 2 to desorb the zeolite runner 22, and then the desorbed waste gas is sent to the next stage of device;
the combustion device 4 comprises a burner and a combustion furnace for the burner to burn, a gas discharge pipeline of the combustion device 4 is connected with the other fluid channel of the heat exchanger and is used for heating the waste gas from the regeneration zone 2a, the other fluid channel of the heat exchanger is further connected to the chimney 5, the burnt gas is discharged through the chimney 5 after being subjected to heat exchange by the heat exchanger, the desorption zone 2b of the front stage of the zeolite adsorption device 2 is connected with the combustion device 4, and the desorbed waste gas enters the combustion device 4;
furthermore, the pipeline that filtration equipment 1 and zeolite adsorption equipment 2 are connected is equipped with adsorption fan 6 on, is equipped with desorption fan 7 between desorption equipment 3 and the pipeline of zeolite adsorption equipment 2 or between combustion equipment 4 and the pipeline of zeolite adsorption equipment 2, still is equipped with fresh air fan 8 and is used for supplementing the fresh air between the pipeline of combustion equipment 4 and zeolite adsorption equipment 2.
In this embodiment, the Pt and Pd noble metal catalysts loaded with the ceramic-based carrier in the combustion apparatus 4 are used to cooperate with combustion and react with exhaust gas, and after the VOCs adsorbed by the zeolite runner 22 are desorbed from the zeolite runner 22, the desorbed high-concentration exhaust gas enters the CO combustion furnace of the combustion apparatus 4 to be oxidized, and the noble metal active site has high dispersity, high catalytic activity and high catalytic removal efficiency, so that the reaction activation energy can be obviously reduced, and the catalyst can operate at medium-low temperature (300 ℃).
Moreover, in comparison with the partition 23 and the side partition which are fixed in area in the conventional form, in this embodiment, the side partition assembly 24 is movable, the area ranges of the regeneration zone 2a and the desorption zone 2b at the front and rear ends of the zeolite rotor 22 are changed with the movement of the side partition assembly 24, and the driving assembly 25 is provided at the top end of the housing 21 and connected to the side partition assembly 24.
Specifically, the side partition assembly 24 includes a bottom plate 241 and a movable plate 242 movably connected to the bottom plate 241, the bottom end of the bottom plate 241 is movably connected to the middle partition 23, the movable plate 242 at the end of the movable plate 242, which is connected from the bottom plate 241, is movably connected to the inner top wall of the casing 21, and in order to ensure that the regeneration zone 2a and the desorption zone 2b have sufficient adjustment ranges, at least three movable plates 242 are provided, and in this embodiment, 4 movable plates 242 are specifically provided.
The bottom end of the bottom plate 241 is hermetically connected to the middle partition plate 23, the bottom plate 241 is hermetically connected to the movable plate 242, the side end of the bottom plate 241, the side end and the top end of the movable plate 242 are hermetically contacted with the housing 21, and the connection parts of the bottom plate 241, the middle partition plate 23, the bottom plate 241 and the movable plate 242 are hermetically connected with connection strips 243 capable of elastic deformation, so that the edge areas of the regeneration zone 2a and the desorption zone 2b are hermetically arranged, and the only inlet and outlet of the air flow are the air vents 26 and the zeolite runner 22.
It will be appreciated by those skilled in the art that the connection of the base plate 241 and the movable plate 242 may be mainly performed by the connection strip 243, and that corresponding connection members, such as hinges, links, wires or chains, may be provided in the movable plate 242.
Further specifically, the length of the bottom plate 241 is greater than the length of the movable plate 242, the weight of the bottom plate 241 is greater than the weight of the movable plate 242, the first movable plate 242 connected to the top end of the bottom plate 241 is not attached to the inner top wall of the shell 21, and the sum of the lengths of the bottom plate 241 and the first movable plate 242 is greater than the distance from the bottom end of the bottom plate 241 to the second movable plate 242 on the inner top wall of the shell 21, so that when other movable plates 242 are attached to the inner top wall of the shell 21 under the driving of the driving assembly 25, the bottom plate 241 and the first movable plate 242 can be suspended in the shell 21 in a bending manner, and a triangle structure is formed by connecting the connection points of the bottom plate 241, the first movable plate 242 and the middle partition 23 to the support point of the first movable plate 242 on the inner top wall of the shell 21, so that the bottom plate 241 and the first movable plate 242 can be firmly fixed when the bottom plate 241 and the first movable plate 242 are subjected to wind pressure of the direct-blowing zeolite runner 22, and unnecessary shaking and loosening are prevented.
Moreover, in terms of movable structure, the bottom plate 241 and the movable plate 242 are embedded with guide strips 27, guide grooves 27a are formed in the guide strips 27, swinging parts 27b are formed in the connecting parts of the bottom plate 241 and the movable plate 242, rail grooves 2c are formed in the top wall of the shell 21, corresponding to the guide strips 27 upwards, the driving assembly 25 comprises a movable frame 251 and supporting wheels 252 arranged on the movable frame 251, the movable frame 251 penetrates through the rail grooves 2c to the inside of the shell 21, and the supporting wheels 252 on the movable frame 251 are nested in the guide strips 27.
In this embodiment, the portion of the top end of the swinging portion 27b, which is used to be hooked by the supporting wheel 252, is a strip or a chain, that is, the area may be a metal strip to connect the front and rear end of the guiding strip 27 and the guiding groove 27a in the case of bending, or may be a rubber-covered metal strip or may be a metal chain to connect the front and rear end of the guiding groove 27a, so that the swinging portion 27b only needs to be ensured to hang on the supporting wheel 252 and guide the supporting wheel 252 into the next guiding groove 27a when the supporting wheel 252 passes.
More specifically, the top in the swing portion 27b is provided with a guide bar 27c, the middle of the guide bar 27c is fixedly connected with the middle of the swing portion 27b, the guide bar 27c is arranged at the top in the swing portion 27b in a heightening manner, two ends of the guide bar 27c are contacted with the inner top wall of the guide bar 27, the length of the guide bar 27c is greater than that of the swing portion 27b, the support wheel 252 is better guided to pass through the guide bar 27c and enter the next guide groove 27a by utilizing the bending curvature of the guide bar 27c, which is different from that of the swing portion 27b, when the angle between the two movable plates 242 is smaller than 90 degrees, the support wheel 252 is prevented from carrying out impact movement on the swing portion 27b instead of pulling the swing portion 27b and the movable plates 242 to move upwards.
For the driving assembly 25, it needs a function of position self-locking to prevent the movable plate 242 from moving reversely to affect the driving assembly 25, in this embodiment, the driving assembly 25 includes a motor 253, a screw 254 connected with the motor 253, and a sliding rail 255 parallel to the screw 254, the movable frame 251 is mounted on the screw 254 and the sliding rail 255, the movable frame 251 is screwed with the screw 254, and the movable frame 251 is driven to move by the rotation of the screw 254, and meanwhile, it is known that the movable frame 251 retains a degree of freedom of moving in a horizontal direction on the sliding rail 255, so that the movable plate 242 driven by the movable frame 251 can be mentioned to be close to the top wall of the housing 21.
In the embodiment, when the method is implemented, paint spraying waste gas is discharged and then enters the filtering equipment 1 for preliminary filtering treatment, then enters the zeolite adsorption equipment 2 through the help of an adsorption fan, enters the zeolite adsorption equipment 2 through an air inlet arranged on a shell 21 of the zeolite adsorption equipment 2, passes through a rotating zeolite runner 22 to enable main waste gas to be adsorbed by the zeolite runner 22 and then discharged from an air outlet at the rear part of the shell 21, so as to form an air flow channel passing through the zeolite runner 22, an air outlet at the rear stage of the zeolite adsorption equipment 2 is connected with a chimney 5 through a pipeline, so that the waste gas subjected to adsorption treatment is discharged up to standard, for the zeolite runner 22, desorption regeneration is required, at the moment, the waste gas sent by the filtering equipment 1 enters a regeneration zone 2a through two pipelines which are respectively arranged at the front end of the zeolite adsorption equipment 2 through a reversing valve, enters a heat exchanger 2a through the waste gas sent by the filtering equipment 1 and enters a zeolite runner 22, and then enters a heat exchanger of the desorption equipment 3 after being heated, and then enters the zeolite runner 22 through a desorption zone 2b of the zeolite adsorption equipment 2, and then the desorbed waste gas is sent to the combustion equipment 4 through the combustion equipment 2, so that the waste gas subjected to up to standard is desorbed and then reaches the Pd carrier after the waste gas is subjected to thermal exchange treatment by the heat exchanger 2 and is subjected to thermal exchange treatment, and then discharged to the thermal exchange treatment after the waste gas reaches the Pd carrier is subjected to the thermal exchange treatment and is subjected to the thermal exchange treatment;
in the embodiment, besides the use of the noble metal type catalyst of Pt and Pd of the ceramic-based carrier to achieve more treatment capacity in the same time during the treatment of the desorption rear end, in the desorption treatment front end, the drive assembly 25 is used to control the side baffle assembly 24 to control the sizes of the regeneration zone 2a and the desorption zone 2b, in this embodiment, the drive assembly 25 and the side baffle assembly 24 are arranged in the regeneration zone 2a and the desorption zone 2b, before the exhaust gas sent by the filtering device 1 enters the regeneration zone 2a, the motor 253 of the drive assembly 25 drives the screw 254 to rotate, thereby driving the movable frame 251 to move on the screw 254 and the sliding rail 255, and to move in the direction of the edge of the shell 21, the supporting wheel 252 of the movable frame 251 hooks the movable plate 242 in the guide strip 27c, when the movable frame 251 slides and passes through the swinging part 27b, the movable plate 242 which is hooked by the movable frame 251 descends along with the bottom plate 241, so as to expand the range of the regeneration zone 2a, until the movable plate 242 is hooked by the movable frame 251, and the movable plate 242 is hooked by the movable frame, and the zeolite is expanded, and the gas is contacted with the zeolite zone 2a in the same treatment capacity as the prior art;
when the regeneration zone 2a and the desorption zone 2b do not need to be used, that is, when the exhaust gas enters through the air inlet arranged on the shell 21 of the zeolite adsorption device 2, the main exhaust gas is adsorbed by the zeolite runner 22 and then discharged from the air outlet behind the shell 21 through the rotating zeolite runner 22, so that an air flow channel passing through the zeolite runner 22 is formed, the movable frame 251 moves in the guide strip 27c to drive the movable plate 242 to rise, and when the movable plate 242 sags and the included angle between the two movable plates 242 is smaller than 90 degrees, the support wheel 252 firstly enters the range of the guide strip 27c when passing through the swinging part 27b, then the support wheel 252 presses the guide strip 27c and the swinging part 27b to drive the next movable plate 242 to swing, so that the next movable plate 242 swings to be hooked by the support wheel 252, and the support wheel 252 makes the swinging part 27b perform impact movement instead of pulling the swinging part 27b and the movable plate 242 to move upwards, so that the blocking range of the regeneration zone 2a and the desorption zone 2b to the zeolite runner 22 is reduced, and then the adsorption amount of the new exhaust gas reaches the prior art.
It can be known that the movable plates 242 on both sides of the supporting wheel 252 of the movable frame 251 are in a balanced state, the movable plates 242 in a horizontal state drive the movable plates 242 hooked by the supporting wheel 252 to have a sagging tendency, at this time, the supporting wheel 252 can move to the middle of the movable plates 242, so that the sagging movable plates 242 and the bottom plate 241 balance the stress on the other side, and the same supporting wheel 252 can be provided with two groups to expand the width of the supporting point, and besides, the guide bar 27 located in the swinging portion 27b has a supporting force resisting reverse bending deformation.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
Claims (9)
1. A zeolite exhaust gas treatment plant, comprising: the zeolite adsorption equipment comprises a shell and a zeolite rotating wheel arranged in the shell, and an air outlet of the rear stage of the zeolite adsorption equipment is connected with a chimney through a pipeline;
the filtering equipment is arranged at the front stage of the zeolite adsorption equipment through a pipeline;
the desorption device comprises a heat exchanger, wherein one fluid channel of the heat exchanger is connected with the rear stage of the zeolite adsorption device;
a combustion apparatus comprising a burner and a burner for combustion by the burner, a gas discharge conduit of the combustion apparatus being connected to the other fluid passage of the heat exchanger and being further connected to the chimney by the other fluid passage of the heat exchanger;
the method is characterized in that: the combustion equipment is internally filled with a Pt and Pd noble metal type catalyst of a ceramic-based carrier and is used for reacting with waste gas in a matched combustion way;
the front end and the rear end of the zeolite rotating wheel in the shell are provided with middle partition plates, two sides of each middle partition plate are provided with side partition plate assemblies, the side partition plate assemblies and the middle partition plates are matched on the front side and the rear side of the zeolite rotating wheel to form a regeneration zone and a desorption zone, and the shell where the regeneration zone and the desorption zone are located is provided with air vents;
the side baffle plate assembly can move, and the area ranges of the regeneration area and the desorption area at the front end and the rear end of the zeolite rotating wheel are changed along with the movement of the side baffle plate assembly;
the top end of the shell is provided with a driving component which is connected with the side baffle component.
2. A zeolite exhaust treatment plant according to claim 1, characterized in that: the filtering equipment is provided with two pipelines at the front end of the zeolite adsorption equipment, one of the pipelines is directly connected with the shell, and the other pipeline is connected with the regeneration zone of the zeolite adsorption equipment;
the regeneration zone of the rear stage of the zeolite adsorption equipment is connected with the desorption equipment and is further connected to the desorption zone of the rear stage of the zeolite adsorption equipment;
the desorption area of the front stage of the zeolite adsorption equipment is connected with the combustion equipment.
3. A zeolite exhaust treatment plant according to claim 1, characterized in that: the side baffle plate assembly comprises a bottom plate and a movable plate which is movably connected with the bottom plate, the bottom end of the bottom plate is movably connected with the middle baffle plate, and the movable plate at the tail end of the movable plate which is connected with the bottom plate is movably connected with the inner top wall of the shell;
the movable plate is provided with at least three movable plates.
4. A zeolite exhaust gas treatment plant according to claim 3, characterized in that: the length of the bottom plate is larger than that of the movable plate, and the weight of the bottom plate is larger than that of the movable plate;
the first movable plate connected with the top end of the bottom plate is not attached to the inner top wall of the shell, and the sum of the lengths of the bottom plate and the first movable plate is larger than the distance from the bottom end of the bottom plate to the second movable plate on the inner top wall of the shell.
5. A zeolite exhaust gas treatment plant according to claim 3 or 4, characterized in that: the bottom end of the bottom plate is in airtight connection with the middle partition plate, the bottom plate is in airtight connection with the movable plate, and the side end of the bottom plate, the side end of the movable plate and the top end of the movable plate are in airtight contact with the shell;
the connecting parts of the bottom plate and the middle partition plate and the connecting parts of the bottom plate and the movable plate are connected in a sealing way, and connecting strips capable of elastically deforming are arranged at the connecting parts.
6. A zeolite exhaust gas treatment plant according to claim 4, wherein: the guide strips are embedded in the bottom plate and the movable plate, guide grooves are formed in the guide strips, and swinging parts are arranged at the connecting positions of the bottom plate and the movable plate;
the guide strip is provided with a track groove on the top wall of the shell corresponding upwards, the driving assembly comprises a movable frame and supporting wheels arranged on the movable frame, the movable frame penetrates through the track groove to the inside of the shell, and the supporting wheels on the movable frame are nested in the guide strip.
7. A zeolite exhaust treatment plant according to claim 6, wherein: the guide strip is arranged at the inner top end of the swinging part, the middle part of the guide strip is fixedly connected with the middle part of the swinging part, and the guide strip is arranged at the inner top end of the swinging part in a heightening manner;
the guide strip both ends contact with the guide strip inner roof, the length of guide strip is greater than the length of swing portion.
8. A zeolite exhaust treatment plant according to claim 7, characterized in that: the part of the top end of the swinging part, which is hooked by the supporting wheel, adopts a strip or a chain.
9. A zeolite exhaust treatment plant according to claim 6, wherein: the driving assembly comprises a motor, a screw rod connected with the motor and a sliding rail arranged in parallel with the screw rod, the movable frame is arranged on the screw rod and the sliding rail, and the movable frame is in threaded connection with the screw rod.
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| CN202310846654.5A CN116550097B (en) | 2023-07-11 | 2023-07-11 | Complete equipment for zeolite waste gas treatment |
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| CN202310846654.5A CN116550097B (en) | 2023-07-11 | 2023-07-11 | Complete equipment for zeolite waste gas treatment |
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| CN116550097B (en) | 2023-09-19 |
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