CN210159445U - Industrial waste gas's desulfurization dust collector - Google Patents
Industrial waste gas's desulfurization dust collector Download PDFInfo
- Publication number
- CN210159445U CN210159445U CN201920905792.5U CN201920905792U CN210159445U CN 210159445 U CN210159445 U CN 210159445U CN 201920905792 U CN201920905792 U CN 201920905792U CN 210159445 U CN210159445 U CN 210159445U
- Authority
- CN
- China
- Prior art keywords
- liquid
- pipe
- desulfurization
- gas
- cylinders
- 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
Abstract
The utility model relates to a desulfurization and dust removal device and a desulfurization and dust removal method for industrial waste gas, wherein an air inlet and an air outlet are arranged above a liquid storage tank in the device, a discharge device is arranged at the bottom of the liquid storage tank, and a primary desulfurization device, a secondary desulfurization device and a demisting device are arranged inside an absorption tower body, above the air inlet and below the air outlet from bottom to top; the utility model adopts a double-circulation secondary desulfurization dust removal process to thoroughly clean micro-sulfur dust in industrial waste gas, and the sulfate dust is near zero-emission atmosphere, thereby greatly reducing the composition of the sulfate dust in atmospheric haze; the produced calcium sulfate is the main raw material of gypsum, has good social benefit and economic benefit, can be applied to industries such as power plants, thermal power plants, smelting plants, chemical engineering and the like, reduces the occupied area, the equipment cost, the construction cost and the operation cost, has obvious economic benefit and has better popularization value.
Description
Technical Field
The utility model relates to an environmental protection technology field specifically is a desulfurization dust collector of industrial waste gas.
Background
The emission of industrial waste gas is one of important sources polluting the atmosphere and is one of the important factors causing haze at present, researchers at home and abroad adopt various methods for the desulfurization and dust removal technology of industrial waste gas, and the current domestic ultra-low emission process of flue gas desulfurization and dust removal mainly adopts a wet electric process technology, so that the investment is large, the energy consumption is high, the operating cost is high, the occupied area is large, and the flue gas purification is poor.
Disclosure of Invention
In order to compensate the deficiency of the prior art, the utility model aims at providing a desulfurization dust collector of industrial waste gas, can realize flue gas desulfurization dust removal integration, can reduce the investment of system's device by a wide margin, area is few, and the device is easily operated, and production is stable, and the working costs reduces by a wide margin.
The utility model aims at realizing through following technical scheme, a desulfurization dust collector and desulfurization dust removal method of industrial waste gas, desulfurization dust collector includes the absorption tower body, and absorption tower body bottom is equipped with the reservoir, and the reservoir top is equipped with the air inlet, the gas vent, and its technical essential is: a feeding hole I is formed above the liquid storage tank and connected with a feeding pipe I, and the feeding pipe I extends out of the side wall of the absorption tower 1; a liquid outlet I is formed in the middle of the liquid storage tank, and a discharging device is arranged at the bottom of the liquid storage tank; a primary sulfur removal device, a secondary sulfur removal device and a demisting device are arranged in the absorption tower body, above the air inlet and below the air outlet from bottom to top;
the discharging device comprises a discharging opening I arranged at the bottom of the liquid storage tank, the discharging opening I is connected with an inlet of a gypsum discharging pump through a discharging pipe I, and an outlet of the gypsum discharging pump is connected with a material collecting box;
the primary sulfur removal device comprises a gas-liquid turbulator I and a flushing sprayer I, wherein the gas-liquid turbulator I is arranged below the flushing sprayer I; the gas-liquid turbulator I is provided with a circular fixing plate I, the fixing plate I is fixedly connected with a plurality of ventilation cylinders I, the ventilation cylinders I are cylindrical bodies without top surfaces and bottom surfaces, curved plates I with transverse sections in a shape of "" are arranged in the ventilation cylinders I, the width of each curved plate is 15-20cm, two ends of each curved plate I are fixedly connected with the inner walls of the ventilation cylinders I, vent holes I are formed between the side edges of the curved plates I and the inner walls of the ventilation cylinders I, the maximum width of each vent hole I is 12.5-15cm, the diameter range of the ventilation cylinders I is 40-50cm, the central distance between the ventilation cylinders I is 60-70cm, and the height of the ventilation cylinders I at the lower ends of the fixing plates is 80-90 cm; the flushing sprayer I comprises a main liquid pipe, liquid distribution pipes and branch liquid pipes, wherein one end of the main liquid pipe is provided with a liquid inlet I, the other end of the main liquid pipe is closed, the two sides of the main liquid pipe are symmetrically connected with the plurality of liquid distribution pipes, the two sides of each liquid distribution pipe are connected with the plurality of branch liquid pipes, the distance between the tail ends of the liquid distribution pipes and the inner wall of the absorption tower is 10-15cm, the distance between the liquid distribution pipes is 180cm, the interval between the branch liquid pipes on the same liquid distribution pipe is 30-50cm, and the tail ends of the branch liquid pipes are spray heads;
a liquid outlet I in the middle of the liquid storage tank is connected with a water inlet of a circulating pump I through a water pipe I, and a water outlet of the circulating pump I is connected with a liquid inlet I of a flushing sprayer I through the water pipe I;
the secondary sulfur removal device comprises a gas-liquid turbulator II and a flushing sprayer II, wherein the structure of the gas-liquid turbulator II is the same as that of the gas-liquid turbulator I, and the structure of the flushing sprayer II is the same as that of the flushing sprayer I; a liquid receiving disc is arranged below the gas-liquid turbulator II, the liquid receiving disc is provided with an annular side wall and a bottom surface, a plurality of connecting frames are circumferentially arranged on the outer edge of the side wall, the connecting frames are fixedly connected with the inner wall of the absorption tower, a ventilating gap is arranged between the outer edge of the side wall of the liquid receiving disc and the inner wall of the absorption tower, the liquid receiving disc is provided with a feed inlet II, the feed inlet II is connected with a feed pipe II, the feed pipe II extends out of the absorption tower, a liquid discharge port II is arranged in the middle of the liquid receiving disc, the liquid discharge port II is connected with a water inlet of a circulating pump II through a water pipe II, and a; a discharge opening II is formed in the bottom of the liquid receiving disc and connected with a discharge pipe II, and the tail end of the discharge pipe II is connected with a discharge pipe I at the bottom of the liquid storage tank;
the demisting device comprises a tubular demister and a plate demister, the plate demister is arranged above the tubular demister, the tubular demister comprises a fixing plate II and a plurality of ventilation cylinders II, the fixing plate II is fixedly connected with the ventilation cylinders II, the air cylinder II is a cylindrical body without a top surface and a bottom surface, a curved plate II with a longitudinal section in a S-shaped shape is arranged in the air cylinder II, the width of the curved plate II is 20-25cm, the two ends of the curved plate II are fixedly connected with the inner wall of the ventilation cylinder II, a vent hole II is arranged between the side edge of the curved plate II and the inner wall of the ventilation cylinder II, the maximum width of the vent hole II is 10-12.5cm, the diameter range of the ventilation cylinders II is 40-50cm, the central distance range between the ventilation cylinders II 50 is 50-60cm, and the height of the ventilation cylinder II at the lower end of the fixing plate II is 90-100 cm; the plate-type demister is provided with a circumferential connecting ring, the connecting ring is provided with a plurality of transverse strip-shaped plates, the strip-shaped plates are fixedly connected with a plurality of longitudinal hyperboloid demisting plates, each hyperboloid demisting plate is provided with a trapezoidal convex surface and a trapezoidal concave surface, the distance between the hyperboloid demisting plates is 22-28mm, the vertical height of each hyperboloid demisting plate is 20-30cm, and the vertical height of each trapezoidal concave surface is 20-30 cm.
Further, gas-liquid turbulator I, wash spray thrower I, gas-liquid turbulator II, wash spray thrower II, tubular defroster, board-like defroster, the material that connects the liquid dish is polypropylene.
The utility model has the advantages that:
(1) the utility model discloses a two circulation secondary desulfurization dust removal process's basis thoroughly clears up little sulphur micronic dust in the industrial waste gas, the nearly zero release atmosphere of sulfate micronic dust to reduce substantially the composition of the sulfate micronic dust in the atmosphere haze.
(3) The utility model discloses a device and application method can be applied to trades such as power plant, steam power plant, smelting plant, chemical industry, makes coal-fired, gas, oil fired boiler flue gas obtain purifying, can realize the nearly zero release requirement of flue gas to solve the formation of the sulfate micronic dust in the industrial waste gas to the atmospheric haze.
(3) The utility model belongs to there is not wet electric installation, has solved among the prior art wet electric formula dust remover to the drawback of the corruption of device, in addition, compares with among the prior art wet electric formula dust remover, the area, equipment cost and construction cost and running cost have been reduced to the invention.
(4) The utility model discloses a two circulation desulphurization unit has reduced the operation control technology degree of difficulty, has reduced the investment of device and auxiliary engine by a wide margin, easy operation, and the index is stable, easily realizes stablizing production, and environmental protection benefit, social, economic benefits are obvious, have better spreading value.
Drawings
FIG. 1 is a flow chart of desulfurization and dust removal of the present invention;
FIG. 2 is a schematic structural diagram of the desulfurization and dust removal device;
FIG. 3 is a schematic structural diagram of a gas-liquid turbulator I and a gas-liquid turbulator II;
FIG. 4 is a schematic structural view of a breather tube I;
FIG. 5 is a top view of the breather tube I;
FIG. 6 is a schematic structural diagram of a flushing sprayer I and a flushing sprayer II;
FIG. 7 is a schematic structural view of a liquid receiving tray;
FIG. 8 is a schematic view of a connection structure of a liquid receiving tray and an absorption tower;
FIG. 9 is a schematic structural view of a tube mist eliminator;
FIG. 10 is a top view of the chimney II;
FIG. 11 is a schematic view of a plate mist eliminator;
FIG. 12 is a cross-sectional view of a hyperboloid defogging plate;
FIG. 13 is an enlarged view of FIG. 12 at A;
fig. 14 is a schematic structural view of a hyperboloid defogging plate.
In fig. 1 to 14, specific names of the respective structures are: the device comprises an absorption tower 1, a liquid storage tank 2, an air inlet 3, an air outlet 4, a feed inlet I5, a feed pipe I5-1, a liquid discharge port I6, a discharge device 7, a primary desulfurization device 8, a secondary desulfurization device 9, a defogging device 10, a discharge port I11, a discharge pipe I12, a gypsum discharge pump 13, an inlet 14, an outlet 15, a collection box 16, a gas-liquid turbulator I17, a flushing sprayer I18, a fixing plate I19, a ventilation cylinder I20, a curved plate I21, a vent hole I22, a main liquid pipe 23, a liquid distribution pipe 24, a branch liquid pipe 25, a liquid inlet I26, a water pipe I27, a circulating pump I28, a water inlet 29-1 of the circulating pump I, a water outlet 29-2 of the circulating pump I, a gas-liquid turbulator II 30, a flushing sprayer II 31, a liquid receiving disc 32, a side wall 33, a bottom surface 34, a connecting frame 35, a ventilation gap, water pipe II 40, circulating pump II 41 water inlet 42, circulating pump II 41 delivery port 43, inlet II 44, bin outlet II 45, row expects II 46 of pipe, tubular defroster 47, plate defroster 48, fixed plate II 49, draft tube II 50, curved plate II 51, air vent II 52, go-between 53, strip 54, hyperboloid defogging board 55, trapezoidal convex surface 56, trapezoidal concave surface 57.
Detailed Description
Example 1
The utility model provides a desulfurization dust collector and desulfurization dust removal method of industrial waste gas, desulfurization dust collector includes absorption tower 1 body, 1 body bottom of absorption tower is equipped with reservoir 2, and reservoir 2 top is equipped with air inlet 3, gas vent 4, and its technical essential is: a feed inlet I5 is formed in the side wall of the absorption tower 1 above the liquid storage tank 2, a feed pipe I5-1 is arranged in the feed inlet I, one end of the feed pipe I5-1 is inserted into the liquid storage tank 2, and the other end of the feed pipe I extends out of the side wall of the absorption tower 1; a liquid outlet I6 is arranged in the middle of the liquid storage tank 2, and a discharging device 7 is arranged at the bottom of the liquid storage tank 2; a primary sulfur removal device 8, a secondary sulfur removal device 9 and a demisting device 10 are arranged in the absorption tower 1 body, above the air inlet 3 and below the air outlet 4 from bottom to top;
The primary sulfur removal device 8 comprises a gas-liquid turbulator I17 and a flushing sprayer I18, and the gas-liquid turbulator I17 is arranged below the flushing sprayer I18; the gas-liquid turbulator I17 is provided with a circular fixing plate I19, the outer edge of a fixing plate II 49 is fixedly connected with the inner wall of the absorption tower 1, the fixing plate I19 is fixedly connected with a plurality of ventilation cylinders I20, the ventilation cylinders I20 are cylindrical bodies without top surfaces and bottom surfaces, curved plates I21 with S-shaped longitudinal sections are arranged in the ventilation cylinders I20, two ends of each curved plate I21 are fixedly connected with the inner wall of the ventilation cylinder I19, vent holes I22 are formed between two sides of each curved plate I21 and the inner wall of the ventilation cylinder I20, the width of each curved plate is 15-20cm, two ends of each curved plate I are fixedly connected with the inner wall of the ventilation cylinder I20, vent holes I22 are formed between the side edge of each curved plate I21 and the inner wall of the ventilation cylinder I20, and the maximum width of each vent hole I22 is 12.5-15cm (the vertical distance from; the diameter range of the air cylinder I20 is 45cm, the distance range between the centers of the air cylinders I20 is 62cm, and the height of the air cylinder I20 at the lower end of the fixing plate 19 is 80 cm; the flushing sprayer I17 comprises a main liquid pipe 23, liquid distribution pipes 24 and branch liquid pipes 25, wherein one end of the main liquid pipe 23 is provided with a liquid inlet I26, the other end of the main liquid pipe is closed, the two sides of the main liquid pipe 23 are symmetrically connected with the plurality of liquid distribution pipes 24, the two sides of each liquid distribution pipe 24 are connected with the plurality of branch liquid pipes 25, the distance between the tail ends of the liquid distribution pipes 24 and the inner wall of the absorption tower is 15cm, the distance between the liquid distribution pipes 24 is 15cm, the interval between the branch liquid pipes 25 on the same liquid distribution pipe 24 is 45cm, and the tail ends of the branch liquid pipes 25 are provided with; nozzle material: silicon carbide, shower nozzle structure: volute type, nozzle direction: bidirectional type, nozzle size: 2 cun;
a liquid outlet I6 in the middle of the liquid storage tank 2 is connected with a water inlet 29-1 of a circulating pump I28 through a water pipe I27, and a water outlet 29-2 of the circulating pump I is connected with a liquid inlet I26 of a flushing sprayer I18 through the water pipe I27;
the secondary sulfur removal device 9 comprises a gas-liquid turbulator II 30 and a flushing sprayer II 31, wherein the structure of the gas-liquid turbulator II 30 is the same as that of the gas-liquid turbulator I17, and the structure of the flushing sprayer II 31 is the same as that of the flushing sprayer I18; a liquid receiving disc 32 is arranged below the gas-liquid turbulator II 30; the liquid receiving disc 32 is provided with an annular side wall 33 and a bottom surface 34, four connecting frames 35 are circumferentially arranged on the outer edge of the side wall 33, the connecting frames 35 are fixedly connected with the inner wall of the absorption tower 1, a ventilating gap 36 is arranged between the outer edge of the side wall 33 of the liquid receiving disc and the inner wall of the absorption tower 1, a feed inlet II 37 is arranged on the side wall of the absorption tower 1 at the upper part of the liquid receiving disc 32, a feed pipe II 38 is arranged in the feed inlet II 37, one end of the feed pipe II 38 is inserted into the liquid receiving disc, the other end of the feed pipe II extends out of the absorption tower 1, a liquid discharge port II 39 is arranged in the middle of the liquid receiving disc, the liquid discharge port II 39 is connected with a water inlet 42 of a circulating pump II 41; a discharge opening II 45 is formed in the bottom of the liquid receiving disc 32, the discharge opening II 45 is connected with a discharge pipe II 46, and the tail end of the discharge pipe II 46 is connected with a discharge pipe I12 at the bottom of the liquid storage tank 2;
the demisting device 10 comprises a tubular demister 47 and a plate demister 48, wherein the plate demister 48 is arranged above the tubular demister 47, the tubular demister 47 comprises a fixing plate II 49 and a ventilation cylinder II 50, the outer edge of the fixing plate II 49 is fixedly connected with the inner wall of the absorption tower 1, the fixing plate II 49 is fixedly connected with a plurality of ventilation cylinders II 50, the ventilation cylinders II 50 are cylindrical bodies without top surfaces and bottom surfaces, curved plates II 51 with S-shaped longitudinal sections are arranged in the ventilation cylinders II 50, two ends of the curved plate II 51 are fixedly connected with the inner wall of the ventilation cylinder II 50, a vent hole II 52 is arranged between two sides of the curved plate II 51 and the inner wall of the ventilation cylinder II 50, the width of the curved plate II 51 is 20-25cm, two ends of the curved plate II 51 are fixedly connected with the inner wall of the ventilation cylinder II, a vent hole II 52 is arranged between the side edge of the curved plate II 51 and the inner wall of the ventilation cylinder II 50, and the maximum width of the vent hole II 52 is 10-12.5 cm; the diameter range of the ventilation cylinders II 50 is 45cm, the center distance between the ventilation cylinders II 50 is 52cm, and the height of the ventilation cylinder II 50 at the lower end of the fixing plate II 49 is 90 cm; the general structure of the tubular demister 47 is the same as that of the gas-liquid turbulator I17, the distance between the air cylinders II is closer than that of the air cylinder I20, and the height is longer than that of the air cylinder I20; the plate-type demister 48 is provided with a circumferential connecting ring 53, the outer edge of the connecting ring 53 is fixedly connected with the inner wall of the absorption tower 1, the connecting ring 53 is provided with a plurality of transverse strip-shaped plates 54, the strip-shaped plates 54 are fixedly connected with a plurality of longitudinal hyperboloid demisting plates 55, each hyperboloid demisting plate 55 is provided with a trapezoidal convex surface 56 and a trapezoidal concave surface 57, the distance between the hyperboloid demisting plates 55 is 22mm, the vertical height of each hyperboloid demisting plate 55 is 20cm, the vertical height of each hyperboloid demisting plate trapezoidal convex surface 56 is 20cm, and the vertical height of each trapezoidal concave surface 57 is 20 cm;
the gas-liquid turbulator 17I, the flushing sprayer I18, the gas-liquid turbulator II 30, the flushing sprayer II 31, the tubular demister 47, the plate demister 48 and the liquid receiving disc 32 are all made of polypropylene.
The desulfurization and dust removal method of the desulfurization and dust removal device for the industrial waste gas comprises the following steps: comprises the following steps;
(1) stock preparation
Adding a flue gas washing liquid from the feed inlet I, wherein the flue gas washing liquid is CaCO3Suspension or Ca (OH)2The concentration of the solution is 20-30%, after the liquid storage tank is filled with the flue gas washing liquid, a circulating pump I is started, a washing sprayer I is used for spraying the flue gas washing liquid, the pump pressure of the circulating pump I is 0.26-0.28Mpa, the temperature of the flue gas washing liquid is 35-45 ℃ (the initial temperature is normal temperature, the washing liquid is heated by the flue gas at the temperature of about 35-45 ℃) along with desulfurization;
CaCO is fed through a feed pipe II and a feed inlet II3Or Ca (OH)2Adding the suspension liquid into a liquid receiving disc, opening a circulating pump II, washing a sprayer II and spraying flue gas washing liquid, wherein the circulating pump II pumps 0.28-0.30 Mpa;
(2) primary desulfurization dust removal
Introducing sulfur-containing and dust-containing industrial waste gas with the temperature of 60-120 ℃ from an air inlet of an absorption tower by using a boiler exhaust induced draft fan, wherein the pressure of the air inlet of the absorption tower is 1200-1800Pa, and the industrial waste gas passes through a gas-liquid turbulator I and a flushing sprayer I;
(3) secondary desulfurization dust removal
The industrial waste gas after primary desulfurization and dust removal enters a secondary desulfurization device from a gap between the liquid receiving disc and the inner wall of the absorption tower, and the industrial waste gas passes through a gas-liquid turbulator II and washes a sprayer II;
(4) demisting
The industrial waste gas after secondary desulfurization and dust removal passes through the tubular demister and the plate demister in sequence and is discharged from an exhaust port;
(5) collecting calcium sulfate (CaSO)4·2H2O）
And (4) starting a gypsum discharge pump, and pressing the calcium sulfate solid-liquid mixture at the bottom of the liquid storage tank and the bottom of the liquid receiving plate into the aggregate box.
(6) Water-replenishing and tonic
CaCO in the reservoir as desulfurization proceeds3Or Ca (OH)2The continuous consumption, the gypsum discharge and the water in the evaporation reservoir also continuously reduce, and water and medicine are supplemented into the reservoir regularly and quantitatively through the feed inlet I.
Example 2
The implementation unit is as follows: happy Honda thermoelectricity, Inc.;
the implementation method comprises the following steps: the single-tower double-liquid circulation desulfurization and dust removal method in the embodiment 1 is adopted;
the implementation time is as follows: 2018, 2019;
the implementation results are as follows:
the industrial waste gas entering the absorption tower contains SO2: 4000mg/m3, dust: 30mg/m3, the temperature of flue gas entering the tower is 110-120 ℃, and SO is obtained after desulfurization and dust removal in an absorption tower2：＜10mg/m3And dust: less than 3mg/m3The amount of the flue gas sulfate and the dust is near zero emission.
Calcium sulfate (gypsum) generated after desulfurization enters a material collecting box through a discharging pipe, a qualified gypsum product (cement production raw material) is generated after dehydration, and about 1.3 tons of gypsum product can be obtained when 1 ton of calcium carbonate (desulfurizer) is consumed for treating industrial waste gas.
The principle of the utility model is as follows:
(1) primary desulfurization dust removal
The primary sulfur removal device 8 comprises a gas-liquid turbulator I17 and a flushing sprayer I18, wherein a curved plate I21 with a longitudinal section in a S-shape is arranged in a ventilation barrel I20 of the gas-liquid turbulator I17, vent holes I22 are formed between two sides of the curved plate I21 and the inner wall of the ventilation barrel I20, when industrial waste gas passes through the densely distributed ventilation barrel I20, the S-shaped curved plate can cause airflow to swirl, centralized industrial waste gas is dispersed and disordered, the gas-liquid contact surface area is improved, and meanwhile, the flushing sprayer I18 is densely distributed and sprayed with flue gas cleaning solution, so that the contact time of the industrial waste gas and the flue gas cleaning solution is prolonged, and the purpose of primary purification is achieved;
(2) secondary desulfurization dust removal
The amount of sulfur-containing gas and smoke dust in the industrial waste gas subjected to primary desulfurization and dust removal is greatly reduced, the liquid receiving disc occupies the middle position of the absorption tower, and the micro-sulfur and micro-dust industrial waste gas subjected to the primary desulfurization device 8 passes through the liquid receiving disc and the wall of the absorption tower and then is subjected to deep desulfurization and dust removal by the secondary desulfurization device.
The treatment of the industrial waste gas is completed by two processes by utilizing a grading treatment mode. If the removal efficiency is improved from 90 percent to 99 percent by the single-stage sulfur and dust removal device, high configuration is needed, and a large amount of investment and operation cost are wasted. The technology can directly improve the removal efficiency to 99% by low configuration and utilizing a device with two-stage' 90% efficiency.
And (3) calculating efficiency: 90% +90% =99% (0.9+ (1-0.9) × 0.9)
(3) Demisting
The flue gas after twice desulfurization and dust removal has dust-containing micro fog drops, industrial waste gas is released in a circuitous way through the hyperboloid demisting plates of the tubular demister 47 and the plate demister 48, and the dust-containing micro fog drops in the flue gas are thoroughly cleaned.
(4) The flue gas cleaning solution reacts with the flue gas
CaCO3Process for the reaction of
Absorption Process, SO2The gas is absorbed by the water molecules in the sprayed slurry to form sulfurous acid.
The equation: SO (SO)2+H2O→H2SO3
The replacement process, the sulfurous acid falls into a liquid collecting tank at the bottom of the tower and reacts with the desulfurizer CaCO3React to form calcium sulfite.
The equation: CaCO3+H2SO3→CaSO3+H2O+CO2
And in the oxidation process, the calcium sulfite is oxidized into stable calcium sulfate by oxidizing oxygen in air.
The equation: CaSO3+O2→CaSO4
Ca(OH)2Process for the reaction of
Absorption Process, SO2The gas is absorbed by the water molecules in the sprayed slurry to form sulfurous acid.
The equation: SO (SO)2+H2O→H2SO3
And (3) a neutralization process: the sulfurous acid falls into a liquid collecting tank at the bottom of the tower and reacts with a desulfurizing agent Ca (OH)2React to form calcium sulfite.
Ca(OH)2+ H2SO3→CaSO3+H2O
And in the oxidation process, the calcium sulfite is oxidized into stable calcium sulfate by oxidizing oxygen in air.
The equation: CaSO3+O2→CaSO4。
Claims (6)
1. The utility model provides an industrial waste gas's desulfurization dust collector, includes the absorption tower body, and absorption tower body bottom is equipped with the reservoir, and the reservoir top is equipped with air inlet, gas vent, characterized by: a feeding hole I and a feeding pipe I are arranged above the liquid storage tank; a liquid outlet I is formed in the middle of the liquid storage tank, and a discharging device is arranged at the bottom of the liquid storage tank; a primary sulfur removal device, a secondary sulfur removal device and a demisting device are arranged in the absorption tower body, above the air inlet and below the air outlet from bottom to top;
the discharging device comprises a discharging opening I arranged at the bottom of the liquid storage tank, the discharging opening I is connected with an inlet of a gypsum discharging pump through a discharging pipe I, and an outlet of the gypsum discharging pump is connected with a material collecting box;
the primary sulfur removal device comprises a gas-liquid turbulator I and a flushing sprayer I, wherein the gas-liquid turbulator I is arranged below the flushing sprayer I; the gas-liquid turbulator I is provided with a circular fixing plate I, the fixing plate I is fixedly connected with a plurality of ventilation cylinders I, the ventilation cylinders I are cylindrical bodies without top surfaces and bottom surfaces, curved plates I with transverse sections in a shape like Chinese character 'ji' are arranged in the ventilation cylinders I, two ends of each curved plate I are fixedly connected with the inner walls of the ventilation cylinders I, vent holes I are formed between two sides of each curved plate I and the inner walls of the ventilation cylinders I, the diameter range of the ventilation cylinders I is 40-50cm, the central distance range between the ventilation cylinders I is 60-70cm, and the height of the ventilation cylinders at the lower ends of the fixing plates is 80-90 cm; the flushing sprayer I comprises a main liquid pipe, liquid distribution pipes and liquid branch pipes, wherein one end of the main liquid pipe is provided with a liquid inlet I, the other end of the main liquid pipe is closed, the two sides of the main liquid pipe are symmetrically connected with the liquid distribution pipes, and the two sides of the liquid distribution pipes are connected with the liquid branch pipes; a liquid outlet I in the middle of the liquid storage tank is connected with a water inlet of a circulating pump I through a water pipe I, and a water outlet of the circulating pump I is connected with a liquid inlet I of a flushing sprayer I through the water pipe I;
the secondary sulfur removal device comprises a gas-liquid turbulator II and a flushing sprayer II, wherein the structure of the gas-liquid turbulator II is the same as that of the gas-liquid turbulator I, and the structure of the flushing sprayer II is the same as that of the flushing sprayer I; a liquid receiving disc is arranged below the gas-liquid turbulator II, the liquid receiving disc is provided with an annular side wall and a bottom surface, a plurality of connecting frames are circumferentially arranged on the outer edge of the side wall, the connecting frames are fixedly connected with the inner wall of the absorption tower, a ventilating gap is arranged between the outer edge of the side wall of the liquid receiving disc and the inner wall of the absorption tower, the liquid receiving disc is provided with a feed inlet II and a feed pipe II, a liquid discharge port II is arranged in the middle of the liquid receiving disc, the liquid discharge port II is connected with a water inlet of a circulating pump II through a water pipe II, and a water outlet of the circulating pump II; a discharge opening II is formed in the bottom of the liquid receiving disc and connected with a discharge pipe II, and the tail end of the discharge pipe II is connected with a discharge pipe I at the bottom of the liquid storage tank;
the demisting device comprises a tubular demister and a plate demister, the plate demister is arranged above the tubular demister, the tubular demister comprises a fixing plate II and a ventilating cylinder II, the fixing plate II is fixedly connected with a plurality of ventilating cylinders II, the ventilating cylinder II is a cylindrical body without a top surface and a bottom surface, a curved plate II with a transverse section in a S-shape is arranged in the ventilating cylinder II, two ends of the curved plate II are fixedly connected with the inner wall of the ventilating cylinder II, air vents II are arranged between two sides of the curved plate II and the inner wall of the ventilating cylinder II, the diameter range of the ventilating cylinder II is 40-50cm, the central distance range between the ventilating cylinders II is 50-60cm, and the height of the ventilating cylinder II at the lower end of the fixing plate II is 90-100 cm; the distance between the air cylinders II is smaller than that between the air cylinders I, and the height of the air cylinders II is higher than that of the air cylinders I; the plate-type demister is provided with a circumferential connecting ring, a plurality of transverse strip-shaped plates are arranged on the connecting ring, a plurality of longitudinal hyperboloid demisting plates are fixedly connected with the strip-shaped plates, and the hyperboloid demisting plates are provided with trapezoidal convex surfaces and trapezoidal concave surfaces.
2. The desulfurization and dust removal device for industrial waste gas according to claim 1, wherein: gas-liquid turbulator I, wash spray thrower I, gas-liquid turbulator II, wash spray thrower II, tubular defroster, plate-type defroster, the material that connects the liquid dish is polypropylene.
3. The desulfurization and dust removal device for industrial waste gas according to claim 1, wherein: the width of the curved plate is 15-20cm, two ends of the curved plate I are fixedly connected with the inner wall of the ventilating cylinder I, a ventilating hole I is formed between the side edge of the curved plate I and the inner wall of the ventilating cylinder I, and the maximum width of the ventilating hole I is 12.5-15 cm.
4. The desulfurization and dust removal device for industrial waste gas according to claim 1, wherein: the distance between the tail end of the liquid separating pipe and the inner wall of the absorption tower is 10-15cm, the distance between the liquid separating pipes is 150-180cm, and the interval between the liquid separating pipes on the same liquid separating pipe is 40-50 cm.
5. The desulfurization and dust removal device for industrial waste gas according to claim 1, wherein: the width of the curved plate II is 20-25cm, two ends of the curved plate II are fixedly connected with the inner wall of the ventilation cylinder II, a vent hole II is arranged between the side edge of the curved plate II and the inner wall of the ventilation cylinder II, and the maximum width of the vent hole II is 10-12.5 cm.
6. The desulfurization and dust removal device for industrial waste gas according to claim 1, wherein: the distance between the hyperboloid defogging plates is 22-28mm, and the vertical height of the hyperboloid defogging plates is 20-30 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920905792.5U CN210159445U (en) | 2019-06-17 | 2019-06-17 | Industrial waste gas's desulfurization dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920905792.5U CN210159445U (en) | 2019-06-17 | 2019-06-17 | Industrial waste gas's desulfurization dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210159445U true CN210159445U (en) | 2020-03-20 |
Family
ID=70171738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920905792.5U Active CN210159445U (en) | 2019-06-17 | 2019-06-17 | Industrial waste gas's desulfurization dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210159445U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102163A (en) * | 2019-06-17 | 2019-08-09 | 辽宁宏达环保科技有限公司 | A kind of desulfation dust-extraction device and desulfurization and dust-removal method of industrial waste gas |
-
2019
- 2019-06-17 CN CN201920905792.5U patent/CN210159445U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102163A (en) * | 2019-06-17 | 2019-08-09 | 辽宁宏达环保科技有限公司 | A kind of desulfation dust-extraction device and desulfurization and dust-removal method of industrial waste gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103303877B (en) | Many sources of the gas low concentration SO 2smoke comprehensive reclaims acid-making process flow process | |
| CN201320447Y (en) | Integrated smoke purification device for desulphurization and denitration | |
| CN201333376Y (en) | Flue gas desulfurization and denitration purifying device | |
| CN103785275B (en) | Desulfurization, ash disposal, denitration integrated flue gas clarifier | |
| CN202823151U (en) | Multistage spray efficient wet process of flue gas desulfurization and synergistic mercury removal integrated device | |
| CN101343077A (en) | Method for preparing gypsum by removing boiler flue gas sulphur dioxide with white slime from ammonia alkali factory | |
| CN103961996B (en) | A kind of method of tower case gas cleaning | |
| CN110102163A (en) | A kind of desulfation dust-extraction device and desulfurization and dust-removal method of industrial waste gas | |
| CN205653162U (en) | System for sulphuric acid is prepared to sulphur waste liquid that contains that utilizes coal gas wet oxidation process to produce | |
| CN103801178A (en) | Smoke purification device and method with integration of desulfuration, denitration, dust removal and mercury removal | |
| CN105195004A (en) | Combined desulphurization and dedusting apparatus and method for wet flue gas | |
| WO2021051448A1 (en) | Ammonia desulphurization and oxidation apparatus and method | |
| CN206621980U (en) | A kind of coal steam-electric plant smoke sulfur dioxide, dust and waste water coprocessing system | |
| CN201510842U (en) | Double-loop hollow tower spray and tower body demisting air flue integrating device | |
| CN209501361U (en) | Novel energy-conserving Complexing Iron desulphurization plant | |
| CN208356498U (en) | A kind of flue gas desulfurization and denitrification integrated apparatus | |
| CN210159445U (en) | Industrial waste gas's desulfurization dust collector | |
| CN203777911U (en) | Desulfuration, dedusting and denitration integrated flue gas cleaner | |
| CN108261913A (en) | A kind of magnesia semi-dry desulfurizing process and system | |
| CN203899437U (en) | Tower tank fume gas purification system | |
| CN112875740B (en) | System and method for preparing high-purity gypsum from semi-dry desulfurized fly ash | |
| CN206494730U (en) | A kind of magnesium sulfite is oxidized to magnesium sulfate process system | |
| CN212523615U (en) | Water-saving and white-removing device for sulfur dioxide in zinc oxide removal flue gas | |
| CN205055798U (en) | Modular wet -type flue gas desulfurization dust collector | |
| CN205055799U (en) | Device that integration wet flue gas desulfurization removed dust |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |