CN210905540U - Tail gas purification system of drying system - Google Patents
Tail gas purification system of drying system Download PDFInfo
- Publication number
- CN210905540U CN210905540U CN201921481245.5U CN201921481245U CN210905540U CN 210905540 U CN210905540 U CN 210905540U CN 201921481245 U CN201921481245 U CN 201921481245U CN 210905540 U CN210905540 U CN 210905540U
- Authority
- CN
- China
- Prior art keywords
- dust removal
- purification tank
- tail gas
- plate
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The tail gas purification system of the drying system comprises a purification tank, a spiral air supply mechanism, a dust removal mechanism and a desulfurization mechanism, wherein the dust removal mechanism is arranged in the scheme and is provided with a plurality of dust removal layers, each dust removal layer is provided with a plurality of micro sprayers, so that water mist is completely in full contact with tail gas, dust in the tail gas is further completely removed, the water mist also adsorbs sulfur dioxide in the tail gas, the content of the sulfur dioxide in the tail gas is reduced, and meanwhile, each dust removal layer is also provided with a breathable plate, so that the flow speed of the tail gas in the purification tank is slowed down, the detention time of the tail gas in the purification tank is prolonged, and the dust removal effect; this scheme is provided with desulfurization mechanism, is provided with the absorption unit among the desulfurization mechanism, and it has active burnt granule to adsorb to fill in the unit, can fully adsorb the sulphur component like sulfur dioxide in the dust removal back tail gas, and active burnt granule can also adsorb heavy metal, dioxin in the tail gas when adsorbing sulfur dioxide, further promotes the tail gas treatment effect.
Description
Technical Field
The utility model relates to a clean moulded coal drying system tail gas treatment technical field especially relates to drying system tail gas clean system.
Background
The waste coal gangue is used for replacing part of raw coal to develop coal gangue-based industrial clean coal briquettes, and because the clean coal briquettes are subjected to chemical reaction in a drying system, the generated tail gas contains a small amount of unfixed SO2And a large amount of dust, and if the pollutants are directly discharged to the atmosphere, the pollutants will pollute the local environment and are not in accordance with the environmental protection requirement.
Disclosure of Invention
In view of the above, it is necessary to provide an exhaust gas purification system for a drying system.
Drying system tail gas clean system, including purifying tank, spiral air supply mechanism, dust removal mechanism, desulfurization mechanism, the purifying tank sets up in outside alkali lye pond one side, the purifying tank is close to bottom one side and is provided with the intake pipe, the purifying tank is close to the bottom opposite side and is provided with the drain pipe, the purifying tank top is provided with the blast pipe, spiral air supply mechanism level sets up inside the purifying tank, spiral air supply mechanism one end is connected with the intake pipe, the spiral air supply mechanism other end sets up in purifying tank inside central point and puts, dust removal mechanism sets up between spiral air supply mechanism and desulfurization mechanism, dust removal mechanism includes first dust removal unit, second dust removal unit, third dust removal unit, first dust removal unit, second dust removal unit, third dust removal unit top-down set up inside the purifying tank, first dust removal unit, second dust removal unit, third dust, The second dust removal unit and the third dust removal unit are identical in structure, the first dust removal unit comprises a vent plate, a micro sprayer and a water inlet pipe, the vent plate is arranged inside the purification tank, a plurality of through holes are formed in the vent plate, the micro sprayer is arranged on the upper surface of the vent plate, a plurality of micro sprayers are arranged on the water inlet pipe, one end of the water inlet pipe is arranged inside the purification tank and connected with the micro sprayers, the desulfurization mechanism is arranged inside the purification tank close to one side of the exhaust pipe and comprises a first supporting plate, a second supporting plate and an adsorption unit, the first supporting plate and the second supporting plate are arranged inside the purification tank relatively, the first supporting plate and the second supporting plate are provided with a plurality of through holes, an interlayer is formed between the first supporting plate and the second supporting plate, and the adsorption unit is.
Preferably, the spiral air supply mechanism is a spiral coil pipe, and a plurality of through holes are formed in the spiral coil pipe body.
Preferably, the adsorption unit is provided with a plurality of in the intermediate layer, the adsorption unit includes adsorption tube, lid, adsorption tube one end is sealed, and the other end is uncovered, the lid sets up on the uncovered of the adsorption tube other end, a plurality of through-hole has still been seted up on the adsorption tube.
Preferably, the purifying tank bottom still is provided with the blowdown board, blowdown board one end sets up on the purifying tank inner wall that is close to drain pipe one side, the blowdown board other end sets up on the purifying tank inner wall that is close to intake pipe one side, the blowdown board is the slope setting inside the purifying tank.
Preferably, the lower surface of the sewage draining plate is further provided with a first vertical plate, a second vertical plate and a third vertical plate, and the first vertical plate, the second vertical plate and the third vertical plate are sequentially arranged between the sewage draining plate and the bottom of the purifying tank along the air inlet pipe to the direction of the water draining pipe.
The scheme is provided with a dust removal mechanism which is provided with a plurality of dust removal layers, each dust removal layer is provided with a plurality of micro sprayers so as to form uniform water mist on the upper surface of the breathable plate, the water mist has no dead angle in the purification tank, so that the water mist is completely contacted with the tail gas, the dust in the tail gas is further completely removed, meanwhile, the water mist also adsorbs sulfur dioxide in the tail gas, and the content of the sulfur dioxide in the tail gas is reduced; meanwhile, each dedusting layer is also provided with a ventilating plate, the ventilating plate is provided with densely distributed oblong through holes, and the diameter of each oblong through hole is smaller so as to slow down the flow velocity of the tail gas in the purification tank and prolong the detention time of the tail gas in the purification tank, thereby improving the dedusting effect of the dedusting mechanism.
This scheme is provided with desulfurization mechanism, is provided with the absorption unit among the desulfurization mechanism, and it has active burnt granule to fill in the absorption unit, and active burnt is the granular substance that has adsorbent and catalyst dual performance, has very abundant microporous structure, can adsorb macromolecule, long chain organic matter, is SO2The excellent adsorbent can fully adsorb sulfur-containing components such as sulfur dioxide in the tail gas after dust removal, prevent the sulfur dioxide from being discharged into the atmosphere to pollute the environment, and adsorb SO2Can be converted into high-concentration SO by desorption2The gas is a chemical raw material, can be used for producing sulfur-containing chemical products with high added values, such as sulfuric acid, sulfur, ammonium sulfate and the like, realizes the recycling of sulfur, can reuse the resolved active coke, and greatly reduces the tail gas desulfurization cost. The active coke particles can adsorb heavy metal and dioxin in tail gas while adsorbing sulfur dioxide, and the tail gas treatment effect is further improved.
Drawings
Fig. 1 is a schematic partial sectional view of an exhaust gas purification system of a drying system.
Fig. 2 is a schematic structural view of the spiral blowing mechanism.
Fig. 3 is a schematic structural view of the air-permeable plate.
Fig. 4 is a schematic structural view of the adsorption unit.
Fig. 5 is a schematic structural diagram of another embodiment of fig. 4.
Fig. 6 is a partially enlarged schematic view of fig. 1.
In the figure: the device comprises a purification tank 10, an air inlet pipe 11, a water outlet pipe 12, an air outlet pipe 13, a sewage discharge plate 14, a first vertical plate 141, a second vertical plate 142, a third vertical plate 143, a spiral air supply mechanism 20, a dust removal mechanism 30, a first dust removal unit 31, a ventilation plate 311, an oblong through hole 3111, a micro sprayer 312, an inlet pipe 313, a second dust removal unit 32, a third dust removal unit 33, a desulfurization mechanism 40, a first support plate 41, a second support plate 42, an adsorption unit 43, an adsorption pipe 431 and a cover body 432; an external caustic bath 100.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1 to 6, the present invention provides a tail gas purification system of a drying system, comprising a purification tank 10, a spiral air supply mechanism 20, a dust removal mechanism 30, and a desulfurization mechanism 40, wherein the purification tank 10 is disposed at one side of an external alkaline solution pool 100, the purification tank 10 is a rigid/corrosion-resistant sealed cavity having a circular truncated cone-shaped end and a cylindrical other end, an air inlet pipe 11 is disposed at one side of the purification tank 10 near the bottom to convey tail gas of the drying system into the spiral air supply mechanism 20, a water outlet pipe 12 is disposed at the other side of the purification tank 10 near the bottom to convey sewage at the bottom of the purification tank 10 into the external alkaline solution pool 100, an air outlet pipe 13 is disposed at the top of the purification tank 10 to discharge purified tail gas, the spiral air supply mechanism 20 is horizontally and fixedly disposed inside the purification tank 10, one end of the spiral air supply mechanism 20 is connected with the air inlet, the other end of the spiral air supply mechanism 20 is arranged at the central position inside the purification tank 10 to uniformly distribute the tail gas of the drying system conveyed by the air inlet pipe 11 to the bottom of the purification tank 10 so as to make the tail gas in the purification tank 10 fully contact with the dust removal mechanism 30, the dust removal mechanism 30 is arranged between the spiral air supply mechanism 20 and the desulfurization mechanism 40 to remove dust in the tail gas and dissolve part of sulfur dioxide in the tail gas into water, the dust removal mechanism 30 comprises a first dust removal unit 31, a second dust removal unit 32 and a third dust removal unit 33, the first dust removal unit 31, the second dust removal unit 32 and the third dust removal unit 33 are arranged inside the purification tank 10 from top to bottom, the first dust removal unit 31, the second dust removal unit 32 and the third dust removal unit 33 have the same structure to form a plurality of dust removal layers so as to fully remove dust and particles in the tail gas and fully absorb the sulfur dioxide in the tail gas, the first dust removal unit 31 comprises a vent plate 311, a micro sprayer 312 and a water inlet pipe 313, the vent plate 311 is horizontally and fixedly arranged inside the purification tank 10, the shape of the vent plate 311 is matched with the shape of the cross section of the purification tank 10, the vent plate 311 is a corrosion-resistant plate body such as a polytetrafluoroethylene plate body, the vent plate 311 is provided with a plurality of through holes, the through holes are oblong through holes 3111, the flow speed of tail gas in the purification tank 10 is reduced while the tail gas passes through the oblong through holes, so that the retention time of the tail gas in the purification tank 10 is prolonged, the micro sprayer 312 is arranged on the upper surface of the vent plate 311, the micro sprayer 312 is provided with a plurality of water mist, the upper surface of the vent plate 311 forms uniform water mist, so that the water mist is fully contacted with the tail gas to remove dust and sulfur dioxide in the tail gas, one end of the water inlet pipe 313 is arranged inside the purification tank 10, in order to provide sufficient water source for every micro sprayer 312, desulfurization mechanism 40 sets up in the inside that purification can 10 is close to blast pipe 13 one side, desulfurization mechanism 40 includes first backup pad 41, second backup pad 42, adsorption element 43, first backup pad 41, second backup pad 42 set up relatively inside purification can 10, first backup pad 41 is the same with second backup pad 42 structure, a plurality of through-holes have been seted up to first backup pad 41, second backup pad 42, first backup pad 41 shape and purification can 10 cross sectional shape phase-match, first backup pad 41 is corrosion-resistant plate body, form the intermediate layer between first backup pad 41, the second backup pad 42, adsorption element 43 sets up in the intermediate layer to the sulfur dioxide in the desorption back tail gas.
Specifically, the dust removal mechanism 30 is arranged, the first dust removal unit 31, the second dust removal unit 32 and the third dust removal unit 33 are arranged inside the purification tank 10 from top to bottom to form a plurality of dust removal layers, each dust removal layer is provided with a plurality of micro sprayers 312 to form uniform water mist on the upper surface of the breathable plate 311, the water mist has no dead angle in the purification tank 10, so that the water mist is completely contacted with the tail gas, dust in the tail gas is completely removed, meanwhile, the water mist also adsorbs sulfur dioxide in the tail gas to reduce the content of the sulfur dioxide in the tail gas, the water mist removes dust from the tail gas and removes sulfur to form sewage, and the sewage is gradually accumulated at the bottom of the purification tank 10; meanwhile, each dedusting layer is also provided with a ventilating plate 311, a plurality of oblong through holes 3111 are formed in the ventilating plate 311, the oblong through holes 3111 are densely distributed in the ventilating plate 311, and the diameter of the oblong through holes 3111 is smaller, so that the flow speed of the tail gas in the purification tank 10 is reduced, the retention time of the tail gas in the purification tank 10 is prolonged, and the dedusting effect of the dedusting mechanism 30 is improved.
The scheme is provided with a desulfurization mechanism 40, an adsorption unit 43 is arranged in the desulfurization mechanism 40, active coke particles are filled in the adsorption unit 43, the active coke is a granular substance with dual performances of an adsorbent and a catalyst, has a very rich microporous structure, can adsorb macromolecules and long-chain organic matters, and is SO2The excellent adsorbent can fully adsorb sulfur-containing components such as sulfur dioxide in the tail gas after dust removal, prevent the sulfur dioxide from being discharged into the atmosphere to pollute the environment, and adsorb SO2Can be converted into high-concentration SO by desorption2The gas becomes a chemical raw material, can be used for producing sulfur-containing chemical products with high added values, such as sulfuric acid, sulfur, ammonium sulfate and the like, realizes the resource utilization of sulfur, can reuse the resolved active coke, and greatly reduces the tail gas desulfurization cost. The active coke particles can adsorb heavy metals (such as mercury) and dioxin in tail gas while adsorbing sulfur dioxide, so that the tail gas purification effect is further improved.
Further, spiral air supply mechanism 20 is corrosion-resistant spiral coil pipe, and has seted up a plurality of through-holes along spiral coil pipe body, and a plurality of through-holes evenly distributed is around the pipe wall of spiral coil pipe, the through-hole is one of round hole, square hole, hexagonal hole, octagon hole or its combination.
Referring to fig. 2, specifically, the spiral coil pipe is horizontally arranged in the purification tank 10 near the inside of the air inlet pipe 11 through external fixtures such as a support, a steel wire, a bolt and nut assembly and the like, and the tail gas in the air inlet pipe 11 is conveyed to the spiral coil pipe, and because a plurality of through holes are uniformly formed around the pipe wall of the spiral coil pipe, the tail gas in the spiral coil pipe continuously overflows from the plurality of through holes to the purification tank 10, so that the tail gas is uniformly distributed in the purification tank 10 near the inside of the third dust removal unit 33.
Further, the adsorption unit 43 is provided with a plurality of in the intermediate layer, the adsorption unit 43 includes adsorption tube 431, lid 432, adsorption tube 431 one end is sealed, and the other end is uncovered, lid 432 sets up on the uncovered of adsorption tube 431 other end to make the adsorption tube 431 other end open or closed, still seted up a plurality of through-hole on the adsorption tube 431, so that the inside active coke of cavity directly contacts with tail gas.
Specifically, the adsorption unit 43 is composed of an adsorption pipe 431 and a cover 432, the adsorption pipe 431 is filled with active coke particles, the other end of the adsorption pipe 431 is closed through the cover 432, a plurality of regular or irregular tail gas channels are formed between the adsorption units 43, and compared with an active coke layer, the flow velocity of tail gas passing through the adsorption unit 43 channels is large, so that the tail gas is prevented from being blocked in the purification tank 10; the active coke particles in the adsorption unit 43 are quickly separated after being adsorbed and saturated, new active coke particles are refilled, and the replacement efficiency of the adsorption unit 43 is greatly improved; the adsorption units 43 in the interlayer can be placed according to actual conditions, such as horizontal placement and vertical placement, and the horizontal placement is shown in fig. 4 and 5; the quantity of the adsorption units 43 can be adjusted according to the quantity of the tail gas and the flow velocity, if the quantity of the tail gas is large, and the flow velocity is high, more adsorption units 43 are placed, so that substances such as sulfur dioxide, mercury and dioxin in the tail gas can be fully adsorbed, and the operation flexibility is high.
Referring to fig. 1, further, the bottom of the purification tank 10 is further provided with a sewage draining plate 14, one end of the sewage draining plate 14 is arranged on the inner wall of the purification tank 10 close to one side of the water draining pipe 12, the other end of the sewage draining plate 14 is arranged on the inner wall of the purification tank 10 close to one side of the air inlet pipe 11, the sewage draining plate 14 is arranged in the purification tank 10 in an inclined manner so as to prevent the sludge formed by dust in the sewage from gathering at the bottom of the purification tank 10 and being difficult to discharge, the sewage is gathered at the bottom of the purification tank 10 from top to bottom in the purification tank 10, and the sewage draining plate 14 is continuously washed away so as to convey the sewage and the sludge to.
Further, the lower surface of the sewage discharging plate 14 is also provided with a first vertical plate 141, a second vertical plate 142 and a third vertical plate 143, the first vertical plate 141, the second vertical plate 142 and the third vertical plate 143 are sequentially arranged between the sewage discharging plate 14 and the bottom of the purification tank 10 along the direction of the water discharging pipe 12 from the air inlet pipe 11, the sizes of the first vertical plate 141, the second vertical plate 142 and the third vertical plate 143 are sequentially reduced, the first vertical plate 141, the second vertical plate 142 and the third vertical plate 143 are rigid plate bodies for supporting the sewage discharging plate 14, and the sewage discharging plate 14 is prevented from being deformed and losing efficacy due to long-term sewage flow flushing.
The embodiment of the utility model provides a module or unit in the device can merge, divide and delete according to actual need.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a drying system tail gas clean-up system which characterized in that: the device comprises a purification tank, a spiral air supply mechanism, a dust removal mechanism and a desulfurization mechanism, wherein the purification tank is arranged on one side of an external alkali liquor pool, an air inlet pipe is arranged on one side, close to the bottom, of the purification tank, a drain pipe is arranged on the other side, close to the bottom, of the purification tank, an exhaust pipe is arranged on the top of the purification tank, the spiral air supply mechanism is horizontally arranged inside the purification tank, one end of the spiral air supply mechanism is connected with the air inlet pipe, the other end of the spiral air supply mechanism is arranged at the central position inside the purification tank, the dust removal mechanism is arranged between the spiral air supply mechanism and the desulfurization mechanism, the dust removal mechanism comprises a first dust removal unit, a second dust removal unit and a third dust removal unit, the first dust removal unit, the second dust removal unit and the third dust removal unit are arranged inside, the first dust removal unit comprises a vent plate, a micro sprayer and a water inlet pipe, the vent plate is arranged inside the purification tank, a plurality of through holes are formed in the vent plate, the micro sprayer is arranged on the upper surface of the vent plate, the micro sprayer is provided with a plurality of water inlet pipes, one end of each water inlet pipe is arranged inside the purification tank and connected with the micro sprayers, the desulfurization mechanism is arranged inside the purification tank close to one side of the exhaust pipe and comprises a first supporting plate, a second supporting plate and an adsorption unit, the first supporting plate and the second supporting plate are arranged inside the purification tank relatively, the first supporting plate and the second supporting plate are provided with a plurality of through holes, an interlayer is formed between the first supporting plate and the second supporting plate, and the adsorption unit is arranged in the interlayer.
2. The exhaust gas purification system of a drying system of claim 1, wherein: the spiral air supply mechanism is a spiral coil pipe, and a plurality of through holes are formed in the spiral coil pipe body.
3. The exhaust gas purification system of a drying system of claim 2, wherein: the adsorption unit is provided with a plurality of in the intermediate layer, the adsorption unit includes adsorption tube, lid, adsorption tube one end is sealed, and the other end is uncovered, the lid sets up on the uncovered of the adsorption tube other end, a plurality of through-hole has still been seted up on the adsorption tube.
4. The exhaust gas purification system of a drying system of claim 1, wherein: the bottom of the purification tank is also provided with a sewage draining plate, one end of the sewage draining plate is arranged on the inner wall of the purification tank close to one side of the water draining pipe, the other end of the sewage draining plate is arranged on the inner wall of the purification tank close to one side of the air inlet pipe, and the sewage draining plate is arranged in the purification tank in an inclined mode.
5. The exhaust gas purification system of a drying system of claim 4, wherein: the blowdown board lower surface still is provided with first riser, second riser, third riser, first riser, second riser, third riser set gradually between blowdown board and purification tank bottom along the intake pipe to the drain pipe direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921481245.5U CN210905540U (en) | 2019-09-06 | 2019-09-06 | Tail gas purification system of drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921481245.5U CN210905540U (en) | 2019-09-06 | 2019-09-06 | Tail gas purification system of drying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210905540U true CN210905540U (en) | 2020-07-03 |
Family
ID=71360167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921481245.5U Active CN210905540U (en) | 2019-09-06 | 2019-09-06 | Tail gas purification system of drying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210905540U (en) |
-
2019
- 2019-09-06 CN CN201921481245.5U patent/CN210905540U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201524521U (en) | Large wet desulphurization device with wet-type electrostatic demister | |
| CN201807279U (en) | High-efficiency flue gas dust-removal desulfurization device | |
| CN103830986A (en) | Integrated dust removal-purification device and purification method of stationary diesel engine system | |
| CN102500323B (en) | Modified active carbon desulfurizer and preparation method thereof and treatment method of hydrogen sulfide waste gas | |
| CN203227404U (en) | Novel sectional type cross flow smoke purifying and absorbing tower | |
| CN210905540U (en) | Tail gas purification system of drying system | |
| CN212039665U (en) | Dust removal denitration integration equipment is used in production of sintering gangue perforated brick | |
| CN104888594B (en) | Closed multilevel water curtains desulphurization system | |
| CN102423604A (en) | Combined type flue gas desulfurization and denitration device | |
| CN102247741B (en) | Flue gas desulfurization process | |
| CN204447673U (en) | Renewable voc absorber | |
| CN201930698U (en) | Absorption liquid distributor of desulfurizing tower | |
| CN202315629U (en) | Combined type flue gas desulfurization and denitration device | |
| CN210729132U (en) | Layered desulfurization tower | |
| CN207769492U (en) | A kind of novel VOC waste gas purification apparatuses | |
| CN103041692A (en) | Treatment device and treatment method for waste gas exhausted from sewage treatment field | |
| CN110124428A (en) | A kind of industrial waste gas treating column | |
| CN206483575U (en) | The Wet type electric dust-removing device of fine particle can be removed | |
| CN205073847U (en) | Absorbent charcoal adsorber | |
| CN108144385A (en) | A kind of circulating water membranous type acid mist purifying tower | |
| CN203971636U (en) | Inclined grille dust-removal and desulfurizing integrated device | |
| CN204684880U (en) | Industrial waste gas washer | |
| CN104096429A (en) | Slanting grid type dust-removing and desulphurizing integrated device | |
| CN201244429Y (en) | Vertical type high-efficient flue gas desulfurizing and denitrating apparatus | |
| CN213713082U (en) | Domestic waste pyrolysis gas cleaning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20211213 Granted publication date: 20200703 |
|
| PP01 | Preservation of patent right |