CN113426236A - Industrial waste gas desulfurization denitration dust removal integration equipment - Google Patents
Industrial waste gas desulfurization denitration dust removal integration equipment Download PDFInfo
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- CN113426236A CN113426236A CN202110750425.4A CN202110750425A CN113426236A CN 113426236 A CN113426236 A CN 113426236A CN 202110750425 A CN202110750425 A CN 202110750425A CN 113426236 A CN113426236 A CN 113426236A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/26—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies rotatable
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- B01D47/06—Spray cleaning
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- 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
- B01D53/04—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 stationary adsorbents
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
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- B01D2257/30—Sulfur compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
The invention relates to industrial waste gas desulfurization, denitrification and dust removal integrated equipment which comprises an air inlet mechanism, a filtering mechanism and an exhaust mechanism, wherein the air inlet mechanism, the filtering mechanism and the exhaust mechanism are sequentially arranged from bottom to top and are communicated; the air inlet mechanism comprises a water storage tank, an air inlet device and a spraying device which are arranged in the water storage tank; the filtering mechanism comprises a filtering shell, an air extracting device arranged on the filtering shell, and a primary filtering device and a secondary filtering device which are arranged in the filtering shell, wherein the secondary filtering device is arranged in the primary filtering device; the exhaust mechanism is arranged on the filtering mechanism and comprises a catalytic device and a catalytic filtering device which are arranged in sequence; during dust removal, waste gas is sequentially dedusted by the air inlet device, the spraying device, the primary filtering device and the secondary filtering device, enters the catalytic device for denitration and catalysis, and is discharged after being filtered by the catalytic filtering device. The equipment performs catalytic reaction through spraying dust removal and twice filtration, and has good dust removal effect and low operation cost.
Description
Technical Field
The invention relates to environment-friendly equipment, in particular to integrated equipment for desulfurization, denitrification and dust removal of industrial waste gas.
Background
The combined desulfurization, denitration and dust removal of the flue gas is a novel flue gas purification process which is competitively researched and developed at home and abroad in recent years, and the technology and the economical efficiency of the combined desulfurization, denitration and dust removal process are obviously superior to those of an independent desulfurization technology and an independent denitration technology, so that the combined desulfurization, denitration and dust removal process is a new-generation flue gas purification technology with development prospect and popularization value.
Present SOx/NOx control dust collecting equipment still has certain drawback when using, area is too big when establishing ties with the denitration tower like many desulfurizing towers, maintenance cost is higher, make its use receive the restriction, simultaneously, this type of SOx/NOx control dust removal integration equipment dust removal effect is usually less strong, and the catalyst in denitration district with the flue gas contact in-process, receive the fly ash to block up the influence, can reduce its activity gradually with higher speed, thereby reduce the treatment effect in denitration district, make the running cost increase.
Disclosure of Invention
In order to solve the problems, the invention provides an industrial waste gas desulfurization, denitrification and dust removal integrated device which performs catalytic reaction after spraying dust removal and twice filtration, has good dust removal effect, low operation cost, small occupied area and difficult reduction of catalyst activity, and the specific technical scheme is as follows:
the utility model provides an industrial waste gas SOx/NOx control dust removal integration equipment, includes: the air inlet mechanism comprises a water storage tank, an air inlet device and a spraying device, wherein the air inlet device and the spraying device are arranged in the water storage tank; the filter mechanism comprises a filter shell, an air extractor arranged on the filter shell, and a primary filter device and a secondary filter device which are arranged in the filter shell, wherein the filter shell is arranged at the top of the water storage tank and communicated with the water storage tank, the secondary filter device is arranged in the primary filter device, and the air extractor is connected with the secondary filter device; the exhaust mechanism is arranged on the filtering mechanism and is connected with the air exhaust device, and the exhaust mechanism comprises a catalytic device and a catalytic filtering device which are sequentially arranged; during dust removal, waste gas is sequentially dedusted by the air inlet device, the spraying device, the primary filtering device and the secondary filtering device, enters the catalytic device for denitration, and is discharged after being filtered by the catalytic filtering device.
Preferably, the air intake device includes: the waste gas inlet pipe is fixed on the water storage tank; the gas distribution pipe is fixed at the end part of the waste gas inlet pipe and is vertically and upwards arranged; the first gas distribution branch pipes are obliquely fixed on the gas distribution pipe and are arranged in an annular array around the axis of the gas distribution pipe; and the second gas distribution branch pipe is fixed at the top of the gas distribution pipe and upwards gives out gas.
Furthermore, the included angle between the first gas distribution branch pipe and the vertical axis of the gas distribution pipe is 55 degrees.
Preferably, the primary filtration device comprises: the filtering rotary drum is provided with a plurality of dust filtering holes and is rotatably arranged inside the filtering shell; the cleaning device comprises a cleaning rotary frame and a cleaning scraping blade, the cleaning rotary frame is rotatably arranged inside the filtering shell, the cleaning rotary frame is coaxial with the filtering rotary cylinder and is positioned outside the filtering rotary cylinder, the cleaning scraping blade is fixed on the cleaning rotary frame and is attached to the outer circular surface of the filtering rotary cylinder, and the cleaning scraping blade is a spiral blade; and the filtering driving device is arranged on the filtering shell, is respectively connected with the filtering rotary cylinder and the cleaning rotary frame and is used for driving the filtering rotary cylinder and the cleaning rotary frame to rotate.
Preferably, the device further comprises a backwashing device, wherein the backwashing device comprises: the backflushing spray pipe is arranged inside the filtering rotary drum and is positioned below the secondary filtering device; and the spray heads are arranged along the axis array of the backflushing spray pipe and spray water downwards.
Wherein, the secondary filter device includes: the air filtering and exhausting cylinder is fixed at two ends of the filtering shell, and the air extracting device is connected with the air filtering and exhausting cylinder; and the filler assembly is arranged in the filtering air exhaust cylinder, is positioned in the filtering rotary cylinder and filters the waste gas entering the air exhaust device.
Preferably, the packing assembly comprises: the exhaust cylinder rotary seat is rotatably arranged at the end part of the air filtering exhaust cylinder; the cylinder cover plate is arranged on the cylinder rotary seat; the purification cylinder is provided with a plurality of air holes, and is fixed on the cover plate of the exhaust cylinder and positioned inside the filtering rotary cylinder; the filter element is arranged inside the purification cylinder; and the filler driving device is arranged on the air filtering exhaust cylinder, is connected with the exhaust cylinder rotary seat and is used for driving the exhaust cylinder rotary seat and the purification cylinder to rotate.
Preferably, the catalytic device comprises: the heating shell is fixed on the filtering mechanism; the furnace chamber is arranged inside the heating shell and is communicated with the filtering mechanism; the heating pipes are fixed on the outer side surface of the furnace chamber and are arranged along the axis of the furnace chamber in an array manner; a temperature sensor mounted on the furnace chamber for detecting a temperature inside the furnace chamber; and the denitration catalyst is arranged in the furnace cavity.
Further, the catalytic filter device includes: the air outlet cylinder is fixed at the top of the heating shell and is communicated with the furnace chamber, and a clean air exhaust pipe is arranged on the air outlet cylinder; the air outlet cover plate is fixed at the top of the air outlet cylinder; and the activated carbon rod is fixed on the air outlet cover plate, inserted in the air outlet cylinder and used for filtering the catalyzed gas.
Preferably, the air return device further comprises an air return device, and the air return device comprises: the air return pipe is fixed on the air outlet cylinder and is communicated with the air inlet device; the air return valve is arranged on the air return pipe and used for controlling the opening and closing of the air return pipe; and the air outlet valve is arranged on the air purifying exhaust pipe and used for controlling the opening and closing of the air purifying exhaust pipe.
Compared with the prior art, the invention has the following beneficial effects:
1. the device can integrally complete the desulfurization, denitrification and dust removal operation of industrial waste gas in an automatic mode through the design of the air inlet mechanism, the air exhaust mechanism and the filtering mechanism, and the static dust removal operation of the traditional dust removal equipment is changed into the rotary-drum type dust removal operation through the rotary-drum type dust removal structure, so that the filtering surface on the filtering rotary drum can be uniformly used, and the back-flushing cleaning structure can uniformly act on the filtering rotary drum through the rotary structure, so that the high-efficiency self-cleaning of the dust removal mechanism can be realized.
2. According to the invention, through the design of the spiral cleaning scraper, the physical cleaning of the outer wall of the filtering rotary cylinder can be realized on the basis of realizing the back-flushing self-cleaning function of the dust removal mechanism, and through the double-cleaning structure, the filtering performance of the filtering rotary cylinder can be effectively ensured.
3. According to the invention, the air distribution pipes are arranged to ensure that air can be distributed in the water storage tank in an omnibearing and rapid manner, and the dust settling efficiency of the spray pipe on waste gas is effectively improved by realizing the distributed air distribution effect.
Drawings
FIG. 1 is a schematic structural diagram of an integrated desulfurization, denitrification and dedusting device for industrial waste gas;
FIG. 2 is a sectional view of an integrated apparatus for desulfurization, denitrification and dust removal of industrial waste gas;
FIG. 3 is a schematic view of the structure of the exhaust mechanism;
FIG. 4 is a cross-sectional view of the exhaust mechanism;
FIG. 5 is a schematic structural view of an intake mechanism;
FIG. 6 is a cross-sectional view of the intake mechanism;
FIG. 7 is a schematic view of the structure of the filter mechanism;
FIG. 8 is a cross-sectional view of the filter mechanism;
FIG. 9 is an enlarged view of a portion of FIG. 8 at A;
FIG. 10 is a schematic view of the structure of the cleaning spin stand and the cleaning blade mounted on the filter spin basket;
fig. 11 is a schematic configuration diagram of the filter driving device.
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
Example one
As shown in fig. 1 to 11, an integrated apparatus for desulfurization, denitrification and dust removal of industrial waste gas comprises an air inlet mechanism 1, a filtering mechanism 4 and an exhaust mechanism 3 which are sequentially arranged from bottom to top, wherein the air inlet mechanism 1 comprises a water storage tank 24, and an air inlet device and a spraying device which are arranged in the water storage tank 24, and the spraying device is positioned above the air inlet device; the filtering mechanism 4 comprises a filtering shell 5, an air extractor arranged on the filtering shell 5, and a primary filtering device and a secondary filtering device which are arranged in the filtering shell 5, wherein the filtering shell 5 is arranged at the top of the water storage tank 24 and communicated with the water storage tank 24, the secondary filtering device is arranged in the primary filtering device, and the air extractor is connected with the secondary filtering device; the exhaust mechanism 3 is arranged at the top of the filter mechanism 4 and is connected with the air extraction device, and the exhaust mechanism 3 comprises a catalytic device and a catalytic filter device which are arranged in sequence; during dust removal, waste gas is sequentially dedusted by the air inlet device, the spraying device, the primary filtering device and the secondary filtering device, enters the catalytic device for denitration and catalysis, and is discharged after being filtered by the catalytic filtering device.
Specifically, as shown in fig. 1, support plates 2 are fixed on both sides of the top of the water storage tank 24, and the filter housing 5 and the exhaust mechanism 3 are fixed on the support plates 2.
As shown in fig. 5 and 6, a stirring device is further installed in the water storage tank 24, the stirring device comprises a stirring motor 28, two stirring rotating shafts 26, two stirring rings and two stirring rods 27, the two stirring rotating shafts 26 are rotatably installed on the water storage tank 24 and are symmetrically arranged, and the two stirring rotating shafts 26 are connected through a chain wheel and a chain to realize synchronous rotation; the stirring motor 28 is fixed on the side surface of the water storage tank 24 and is connected with one stirring rotating shaft 26; the stirring rods 27 are fixed on the stirring ring, and are arranged in an annular array around the axis of the stirring ring, and are also arranged in an array in the length direction along the axis of the stirring ring, and the stirring ring is fixed on the stirring rotating shaft 26.
When the stirring device works, the two stirring rotating shafts 26 are driven by the stirring motor 28 and synchronously rotate through the chain wheel and the chain, the stirring rotating shafts 26 drive the stirring rods 27 to rotate, the stirring rods 27 stir the sewage at the bottom of the water storage tank 24 so as to reduce the probability of sedimentation of the sewage in the water storage tank 24, and the difficulty in cleaning the inner wall of the water storage tank 24 is reduced through reduction of the probability of sedimentation of the sewage;
as shown in fig. 6, the air inlet device is located above the stirring device, and the air inlet device includes: an exhaust gas inlet pipe 29, a gas distribution pipe 30, a first gas distribution branch pipe 31 and a second gas distribution branch pipe; the waste gas inlet pipe 29 is fixed on the water storage tank 24 and is used for communicating with an external waste gas discharge pipeline; the gas distributing pipe 30 is fixed at the end part of the waste gas inlet pipe 29 positioned in the water storage tank 24 and is vertically arranged upwards; the first gas distribution branch pipes 31 are obliquely fixed on the gas distribution pipe 30, are arranged around the axis of the gas distribution pipe 30 in an annular array and are obliquely discharged upwards; the second branch gas pipe is fixed on the top of the gas distribution pipe 30 and is arranged vertically upwards, and the second branch gas pipe is used for discharging gas upwards. The first air distributing pipe 30 and the second air distributing pipe 30 form a plurality of air outlet points, particularly the second air distributing pipe 30 forms an annular array of air outlet points, so that air can be distributed in the water storage tank 24 in an all-dimensional and rapid mode, and the dust removing effect is improved.
The included angle between the first gas distribution branch pipe 31 and the vertical axis of the gas distribution pipe 30 is 55 degrees; the air distribution range is improved, dispersed air inlet is realized, and the air inlet efficiency is improved.
The spraying device comprises a spraying pipe 32 and a water supply pipe 33, the spraying pipe 32 is arranged above the air inlet device in an array mode, spraying heads are arranged on the spraying pipe 32 in an array mode, and the spraying heads spray water vertically and downwards to form water mist; the water supply pipe 33 is fixed to the side of the water storage tank 24 and communicates with the shower pipe 32.
The bottom of the water storage tank 24 is fixedly communicated with a sewage collecting hopper 25, the sewage collecting hopper 25 is of a funnel-shaped structure, a sewage discharge pipe 34 is arranged at the bottom of the sewage collecting hopper 25, an electric valve is arranged on the sewage discharge pipe 34, and the sewage discharge pipe 34 is communicated with an external sewage discharge pipeline.
The side of the water storage tank 24 and the position corresponding to the waste gas inlet pipe 29 are fixedly provided with a water level sensor 35, the water level sensor 35 is used for monitoring the water level data inside the water storage tank 24 in real time, and when the water level height inside the water storage tank 24 exceeds the height of the water level sensor 35, the external controller controls the electric valve to be opened, so that the sewage discharge operation is carried out through the sewage discharge pipe 34.
As shown in fig. 8 and 10, the primary filter device includes: a filtering rotary drum 11, a cleaning device and a filtering driving device; the filtering rotary cylinder 11 is a hollow cylinder with two open ends, a plurality of dust filtering holes 23 are arrayed on the circumferential surface of the filtering rotary cylinder 11, the dust filtering holes 23 are small holes, a clean air exhaust cavity is arranged inside the dust filtering holes 23, negative pressure air suction is provided for the inside of the clean air exhaust cavity through an air suction device, external smoke dust flows to the inner side from the outer side of the filtering rotary cylinder 11, and filtering is realized in the process of flowing through the dust filtering holes 23; the filter spin basket 11 is mounted inside the filter housing 5 by means of bearings. The filtering shell 5 is cylindrical and horizontally arranged, and the filtering rotary cylinder 11 and the filtering shell 5 are coaxially arranged.
As shown in fig. 10, the cleaning device includes a cleaning rotating frame 12 and a cleaning scraper 13, the cleaning rotating frame 12 is rotatably installed inside the filtering shell 5 through a bearing, the cleaning rotating frame 12 is coaxially arranged with the filtering rotating cylinder 11 and is located outside the filtering rotating cylinder 11, the cleaning scraper 13 is fixed on the cleaning rotating frame 12 and is attached to the outer circumferential surface of the filtering rotating cylinder 11, and the cleaning scraper is a spiral blade; the spiral strickling mode can automatically discharge impurities at the cleaning position by utilizing the spiral conveying principle, and can achieve the purpose of cleaning the impurities on the surface of the filtering rotary cylinder layer by layer and repeatedly; the spiral cleaning scraper 13 is made of stainless steel metal and is used for scraping dust on the outer circular surface of the filtering rotary cylinder 11.
As shown in fig. 11, the filter driving device is installed on the filter housing 5 and is connected to the filter rotary cylinder 11 and the cleaning rotary frame 12, respectively, for driving the filter rotary cylinder 11 and the cleaning rotary frame 12 to rotate. Specifically, the filter driving device includes: first motor 14, first awl tooth, first ring gear and second ring gear, first motor 14 is fixed on filtering casing 5, first awl tooth is fixed on the motor shaft of first motor 14, first ring gear is fixed on filtering rotary drum 11, the second ring gear is fixed on clean spiral frame 12, first ring gear and second ring gear are annular awl tooth, and be located the both sides of first awl tooth, and all mesh with first awl tooth, first ring gear of first awl tooth simultaneous drive and second ring gear rotate, and then realize filtering rotary drum 11 and clean rotation of spiral frame 12, make filtering rotary drum 11 and clean scraping relative rotation, scrape the dust that filters rotary drum 11 surface.
The two ends of the filtering rotary cylinder 11 and the filtering shell 5 are sealed by sealing rings.
The backwashing device comprises a backwashing nozzle 15, a spray head and a water distribution pipe, wherein the backwashing nozzle 15 is arranged in the filtering rotary drum 11 and is positioned below the secondary filtering device, and the spray head is arranged along the axis of the backwashing nozzle 15 in an array mode and sprays water downwards. The water distributor is fixed on the filter shell 5 and is connected with the backflushing nozzle 15. The backflushing spray pipe 15 cleans impurities adhered to the inner wall of the dust filtering hole 23 by using a backflushing principle, and then self-cleaning of the dust filtering hole 23 is realized.
The secondary filtering device comprises a filtering gas exhaust cylinder 6 and a filler component 9; the air filtering exhaust cylinder 6 is fixed at two ends of the filtering shell 5, and a through hole is arranged on the air filtering exhaust cylinder 6 and is communicated with an air extractor;
the packing assembly 9 is installed in the air filtering and exhausting cylinder 6 and is positioned on one side of the through hole, the packing assembly 9 is also positioned in the filtering rotary cylinder 11, and the packing assembly 9 filters waste gas entering the air extracting device. The waste gas enters the through hole of the filtering exhaust cylinder 6 after being filtered by the filler component 9 and then enters the air extractor through the through hole;
the packing component 9 mainly comprises a filter element 20 for filtering the waste gas filtered by the filtering rotary drum 11 again, and the filter element 20 is a quartz sand packing for attaching particles or dust in smoke dust, so that graded filtering is realized, and the filtering strength and the filtering thoroughness are improved.
As shown in fig. 7 and 8, the air extracting device comprises an air pipe 7 and an exhaust fan 8, the air pipe 7 is U-shaped, the air pipe 7 is fixed on the top of the filtering shell 5, two ends of the air pipe are respectively connected with the through hole of the air filtering exhaust tube 6, and the middle of the air pipe 7 is communicated with the exhaust mechanism 3 through a pipeline; the exhaust fans 8 are arranged on the gas conveying pipe 7, and two exhaust fans are symmetrically arranged to convey the waste gas filtered by the primary filtering device to the exhaust mechanism 3.
The exhaust fan 8 performs air exhaust to exhaust the waste gas from the water storage tank 24 to the exhaust mechanism 3, so that the problem of large wind resistance caused by twice filtration is solved, and the waste gas can be continuously treated.
As shown in fig. 3 and 4, the catalytic apparatus includes a heating housing 36, a furnace chamber, a heating pipe 37, a temperature sensor, a cartridge holder 39, and a denitration catalyst 38; the heating shell 36 is cylindrical and is vertically arranged, and the heating shell 36 is fixed on the bracket and is positioned at the top of the filtering shell 5; the furnace chamber is also cylindrical, the furnace chamber is arranged inside the heating shell 36 and is axially arranged with the heating shell 36, and the bottom of the furnace chamber is communicated with the gas pipe 7; the heating pipes 37 are fixed on the outer side surface of the furnace chamber and are arranged along the axis of the furnace chamber in an array manner; the temperature sensor is arranged on the furnace chamber, and the end part of the temperature sensor is positioned in the furnace chamber and used for detecting the temperature in the furnace chamber; barrel holder 39 joint is on the furnace chamber, and is equipped with a plurality ofly along the axis of furnace chamber, and denitration catalyst 38 installs on barrel holder 39.
The exterior of the heating housing 36 is provided with an insulating layer.
The catalytic filter device realizes denitration and active carbon type adsorption filtration. The catalytic filtering device comprises an air outlet cylinder 40, an air outlet cover plate 41 and an activated carbon rod 42; the air outlet cylinder 40 is a hollow cylinder body, the air outlet cylinder 40 is fixed on the top of the heating shell 36 and is communicated with the furnace chamber, and a clean air exhaust pipe 43 is arranged on the air outlet cylinder 40; the air outlet cover plate 41 is fixed at the top of the air outlet cylinder 40 through threads; the activated carbon rod 42 is fixed on the air outlet cover plate 41 and inserted into the air outlet cylinder 40 for filtering the catalyzed gas. The handle is arranged on the air outlet cover plate 41, so that the air outlet cover plate is convenient to disassemble and assemble and is convenient for replacing the piston carbon rod.
Example two
On the basis of the first embodiment, as shown in fig. 2, 8 and 9, the packing assembly 9 is a rotating assembly, and the filter element 20 is uniformly worn by rotating the filter element 20, so that the service life is prolonged, the utilization rate of the filter element 20 is improved, and the filter element 20 is convenient to replace.
The packing component 9 comprises a cylinder rotary seat 17, a cylinder cover plate 18, a purification cylinder 19 and a filter element 20; the exhaust barrel rotary seat 17 is arranged at the end part of the air filtering exhaust barrel 6 through a bearing and is positioned at one side of the through hole; the cylinder cover plate 18 is arranged on the cylinder rotary seat 17 through threads; the purification cylinder 19 is provided with a plurality of air holes 22, the purification cylinder 19 is fixed on the cover plate 18 of the exhaust cylinder and is positioned inside the filtering rotary cylinder 11, and one end of the purification cylinder 19, which is positioned on the cover plate 18 of the exhaust cylinder, is opposite to the through holes; the filter element 20 is arranged inside the purifying cylinder 19; the filler driving device is arranged on the air filtering exhaust cylinder 6, is connected with the exhaust cylinder rotary seat 17 and is used for driving the exhaust cylinder rotary seat 17 and the purification cylinder 19 to rotate; the packing driving device comprises a second motor 10, a second taper tooth and a third ring gear, the second motor 10 is fixed on the air filtering exhaust pipe 6, the second taper tooth is fixed on a motor shaft of the second motor 10, the third ring gear is annular taper tooth, the third ring gear is fixed on the exhaust pipe rotary seat 17, the second taper tooth is meshed with the third ring gear, the second motor 10 drives the exhaust pipe rotary seat 17 to rotate through the second taper tooth and the third ring gear, and the exhaust pipe rotary seat 17 drives the purifying cylinder 19 and the filter element 20 to rotate.
The both sides of through-hole all are equipped with sealing ring 21, and sealing ring 21 is fixed on straining gas exhaust section of thick bamboo 6, and the slip cover is on purifying barrel 19, realizes the through-hole and filters the inside sealed of casing 5 to make waste gas enter into the through-hole from bleeder vent 22 behind filter core 20.
The cover plate 18 of the discharge tube is provided with a handle which is convenient for dismounting the cover plate 18 of the discharge tube, thereby facilitating the replacement of the filter element 20.
EXAMPLE III
On the basis of any one of the above embodiments, as shown in fig. 1 to 4, the exhaust air device further includes a return air device, the return air device includes a return air pipe 44, a return air valve and an intake air valve, the return air pipe 44 is fixed on the air outlet cylinder 40 and is communicated with the exhaust gas inlet pipe 29 of the intake device; the return air valve is arranged on the return air pipe 44 and used for controlling the opening and closing of the return air pipe 44; and the air outlet valve is arranged on the clean air exhaust pipe 43 and is used for controlling the opening and closing of the clean air exhaust pipe 43.
Under the normal mode, the air outlet valve is opened, and net wind calandria 43 is in the open mode, and the return air valve is closed, and return air pipe 44 is in the closed condition, when needing repeated filtration, and the air outlet valve is closed, and net wind calandria 43 closes, and the return air valve is opened, and return air pipe 44 opens, and through during filterable gas enters into waste gas and advances pipe 29, filtration and denitration again.
When the device works, the water distribution pipe 16 and the water supply pipe 33 are both communicated with an external clean water feeding pipeline, the waste gas feeding pipe 29 is communicated with an external waste gas feeding pipeline, when the waste gas feeding pipe 29 is fed with air, the water distribution pipe 16 and the water supply pipe 33 feed water into the spray pipe 32 and the backflushing spray pipe 15, the stirring motor 28, the first motor 14, the second motor 10 and the two exhaust fans 8 synchronously work, after the stirring motor 28 works, the stirring mold rod is driven to stir, after the second motor 10 works, the filter element 20 is driven to circularly move at a set speed, after the first motor 14 works, the cleaning rotary frame 12 and the filtering rotary cylinder 11 are driven to coaxially and reversely move, after the waste gas enters the water storage tank 24, the waste gas is treated by the spray pipe 32 to be subjected to primary dust reduction, the waste gas after dust reduction enters the inside of the filtering shell 5 under the suction force of the exhaust fans 8 to be subjected to dust filtration, impurities in the gas are intercepted on the outer wall of the filtering rotary cylinder 11, and because the design of the effluent type of the recoil spray pipe 15, can clear away the impurity filtered to the water storage tank 24, the gas after the dust filtration enters the furnace chamber after being treated by the filter element 20, the exhaust gas entering the furnace chamber is catalyzed by the denitration catalyst 38, the gas after the catalysis is discharged by the clean air calandria 43 after being filtered by the activated carbon rod 42, when the treatment effect of the clean air calandria 43 to the gas is not good, can make the return air pipe 44 carry on the repeated filtration treatment to the gas after purifying many times.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, which shall fall within the scope of the appended claims.
Claims (10)
1. The utility model provides an industrial waste gas SOx/NOx control dust removal integration equipment which characterized in that includes:
the air inlet mechanism (1), the air inlet mechanism (1) comprises a water storage tank (24) and an air inlet device and a spraying device which are arranged in the water storage tank (24), and the spraying device is positioned above the air inlet device;
the filter mechanism (4), the said filter mechanism (4) includes filtering the body (5), air extractor installed on said filtering the body (5) and primary filter unit and secondary filter unit installed in said filtering the body (5), the said filtering the body (5) is installed on top of the said water storage tank (24), and communicate with said water storage tank (24), the said secondary filter unit is installed in the inside of the said primary filter unit, the said air extractor is connected with said secondary filter unit; and
the exhaust mechanism (3) is installed on the filtering mechanism (4) and connected with the air extracting device, and the exhaust mechanism (3) comprises a catalytic device and a catalytic filtering device which are sequentially arranged;
during dust removal, waste gas is sequentially dedusted by the air inlet device, the spraying device, the primary filtering device and the secondary filtering device, enters the catalytic device for denitration, and is discharged after being filtered by the catalytic filtering device.
2. The integrated equipment for desulfurization, denitrification and dust removal of industrial waste gas according to claim 1, wherein the air inlet device comprises:
an exhaust gas inlet pipe (29), wherein the exhaust gas inlet pipe (29) is fixed on the water storage tank (24);
the gas distribution pipe (30) is fixed at the end part of the waste gas inlet pipe (29), and the gas distribution pipe (30) is vertically arranged upwards;
the first gas distribution branch pipes (31) are obliquely fixed on the gas distribution pipe (30) and are arranged in an annular array around the axis of the gas distribution pipe (30); and
and the second gas distribution branch pipe is fixed at the top of the gas distribution pipe (30), and the second gas distribution branch pipe is used for discharging gas upwards.
3. The integrated equipment for desulfurization, denitrification and dust removal of industrial waste gas according to claim 2, wherein the angle between the first branch gas pipe (31) and the vertical axis of the gas distribution pipe (30) is 55 °.
4. The integrated equipment for desulfurization, denitrification and dust removal of industrial waste gas according to claim 1, wherein the primary filtering device comprises:
the filter rotary drum (11), a plurality of dust filtering holes (23) are arranged on the filter rotary drum (11), and the filter rotary drum (11) is rotatably arranged inside the filter shell (5);
the cleaning device comprises a cleaning rotary frame (12) and a cleaning scraper (13), the cleaning rotary frame (12) is rotatably installed inside the filtering shell (5), the cleaning rotary frame (12) and the filtering rotary cylinder (11) are coaxially arranged and are positioned outside the filtering rotary cylinder (11), the cleaning scraper (13) is fixed on the cleaning rotary frame (12) and is attached to the outer circular surface of the filtering rotary cylinder (11), and the cleaning scraper is a spiral blade; and
the filtering driving device is installed on the filtering shell (5), and is respectively connected with the filtering rotary cylinder (11) and the cleaning rotary frame (12) and used for driving the filtering rotary cylinder (11) and the cleaning rotary frame (12) to rotate.
5. The integrated equipment for desulfurization, denitrification and dust removal of industrial waste gas as claimed in claim 1, further comprising a back-washing device, wherein the back-washing device comprises:
the backflushing spray pipe (15), the backflushing spray pipe (15) is installed inside the filtering rotary drum (11) and is positioned below the secondary filtering device; and
and the spray heads are arranged along the axis array of the backflushing spray pipe (15) and spray water downwards.
6. The integrated equipment for desulfurization, denitrification and dust removal of industrial waste gas according to claim 5, wherein the secondary filtering device comprises:
the air filtering and exhausting cylinder (6) is fixed at two ends of the filtering shell (5), and the air extracting device is connected with the air filtering and exhausting cylinder (6); and
and the packing assembly (9), the packing assembly (9) is installed in the air filtering and exhausting cylinder (6) and is positioned inside the filtering rotary cylinder (11) to filter the waste gas entering the air extracting device.
7. The integrated equipment for desulfurization, denitrification and dust removal of industrial waste gas as claimed in claim 6, wherein the packing assembly (9) comprises:
the exhaust cylinder rotating seat (17), the exhaust cylinder rotating seat (17) is rotatably arranged at the end part of the air filtering exhaust cylinder (6);
the barrel discharging cover plate (18), the barrel discharging cover plate (18) is arranged on the barrel discharging rotary seat (17);
the purification cylinder (19) is provided with a plurality of air holes (22), and the purification cylinder (19) is fixed on the row cylinder cover plate (18) and is positioned inside the filtering rotary cylinder (11);
a filter cartridge (20), said filter cartridge (20) being mounted inside said purification cartridge (19); and
and the filler driving device is arranged on the air filtering exhaust pipe (6), is connected with the exhaust pipe rotary seat (17) and is used for driving the exhaust pipe rotary seat (17) and the purification cylinder (19) to rotate.
8. The integrated equipment for desulfurization, denitrification and dust removal of industrial waste gas according to any one of claims 1 to 7, wherein the catalytic device comprises:
a heating housing (36), wherein the heating housing (36) is fixed on the filtering mechanism (4);
the furnace chamber is arranged inside the heating shell (36) and is communicated with the filtering mechanism (4);
the heating pipes (37), the heating pipes (37) are fixed on the outer side surface of the furnace chamber and are arranged along the axis array of the furnace chamber;
a temperature sensor mounted on the furnace chamber for detecting a temperature inside the furnace chamber; and
a denitration catalyst (38), the denitration catalyst (38) being installed in the furnace chamber.
9. The integrated equipment for desulfurization, denitrification and dust removal of industrial waste gas according to claim 8, wherein the catalytic filtering device comprises:
the air outlet cylinder (40), the air outlet cylinder (40) is fixed on the top of the heating shell (36) and is communicated with the furnace chamber, and a clean air exhaust pipe (43) is arranged on the air outlet cylinder (40);
the air outlet cover plate (41), the air outlet cover plate (41) is fixed on the top of the air outlet cylinder (40); and
the activated carbon rod (42) is fixed on the air outlet cover plate (41), inserted into the air outlet cylinder (40) and used for filtering the catalyzed gas.
10. The integrated equipment for desulfurization, denitrification and dust removal of industrial waste gas as claimed in claim 9, further comprising a return air device, wherein the return air device comprises:
the air return pipe (44) is fixed on the air outlet cylinder (40) and is communicated with the air inlet device;
the air return valve is arranged on the air return pipe (44) and used for controlling the opening and closing of the air return pipe (44); and
and the air outlet valve is arranged on the clean air exhaust pipe (43) and is used for controlling the opening and closing of the clean air exhaust pipe (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110750425.4A CN113426236A (en) | 2021-07-01 | 2021-07-01 | Industrial waste gas desulfurization denitration dust removal integration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110750425.4A CN113426236A (en) | 2021-07-01 | 2021-07-01 | Industrial waste gas desulfurization denitration dust removal integration equipment |
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| Publication Number | Publication Date |
|---|---|
| CN113426236A true CN113426236A (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110750425.4A Pending CN113426236A (en) | 2021-07-01 | 2021-07-01 | Industrial waste gas desulfurization denitration dust removal integration equipment |
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| Country | Link |
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| CN (1) | CN113426236A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803731A (en) * | 2021-10-12 | 2021-12-17 | 上海市计量测试技术研究院 | High-efficiency heat-storage catalytic combustion device for industrial organic waste gas |
| CN115155229A (en) * | 2022-07-19 | 2022-10-11 | 陕西化建工程有限责任公司 | Flying dust treatment device for building construction and flying dust treatment method thereof |
-
2021
- 2021-07-01 CN CN202110750425.4A patent/CN113426236A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803731A (en) * | 2021-10-12 | 2021-12-17 | 上海市计量测试技术研究院 | High-efficiency heat-storage catalytic combustion device for industrial organic waste gas |
| CN113803731B (en) * | 2021-10-12 | 2023-10-03 | 上海市计量测试技术研究院 | Efficient heat accumulation catalytic combustion device for industrial organic waste gas |
| CN115155229A (en) * | 2022-07-19 | 2022-10-11 | 陕西化建工程有限责任公司 | Flying dust treatment device for building construction and flying dust treatment method thereof |
| CN115155229B (en) * | 2022-07-19 | 2023-09-29 | 陕西化建工程有限责任公司 | Dust treatment device for building construction and dust treatment method thereof |
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