A kind of new sulphur ammonium tail gas clean-up deduster
Technical field
The utility model belongs to the tail gas clean-up treatment technology of ammonium sulfate workshop section in coking production, and it is net to be related to a kind of sulphur ammonium tail gas
Change device.
Background technology
Saturator method is used to produce sulphur ammonium with the ammonia in gas recovery mostly in China's coking production.Sulphur ammonium quilt in the workshop section
Caused tail gas is emitted into air after cyclone dust collectors remove sulphur ammonium dust therein by exhaust blower after drying.With production
Reinforcing and cyclone dust collectors self-ability deficiency, worse and worse, tail gas entrainment is a large amount of for the separating effect of cyclone dust collectors
Sulphur ammonium dust enter air, pollution environment, and equipment and the cost of pipeline modification are too high, sulphur ammonium tail gas dust pollute into
For one of coking production urgent problem to be solved.
Utility model content
Technical problem:In order to solve the defects of prior art, the utility model provides a kind of new sulphur ammonium tail gas clean-up
Deduster.
Technical scheme:A kind of new sulphur ammonium tail gas clean-up deduster provided by the utility model, including body, located at body
The air inlet of side wall, located at the gas outlet of bodies top, one group of deflection plate, water inlet pipe, the shower on water inlet pipe, backflow
Pipe, the circulating pump on return duct, outlet pipe, overflow pipe, the overfall on overflow pipe, water receiver, pretreatment unit,
After-treatment device, water treatment facilities;One group of deflection plate is located between air inlet and gas outlet, and is staggered up and down;Institute
Shower is stated between the adjacent baffle of top;Described return duct one end is connected with body bottom portion, and the other end connects with water inlet pipe
Connect;Described outlet pipe one end is connected with return duct, the connection of the other end and water receiver;The overfall is located at body lower part, described
Overflow pipe one end is connected with water receiver;
The pretreatment unit top downward is set, including solid collecting layer and be sequentially connected sand stone layer, distribution
Room, multistorey strainer mesh floor, the solid collecting layer are connected by porous plate with gas distributing chamber and multistorey strainer mesh layer, the multistorey strainer mesh layer
The filter screen for being sequentially reduced and being obliquely installed including one group of aperture, the gas outlet of multistorey strainer mesh layer are connected with air inlet;
The after-treatment device includes desiccant layer, active carbon layer, Electrostatic Absorption layer and the filter being sequentially connected from bottom to top
Net, the Electrostatic Absorption layer is interior to be provided with one group of Electrostatic Absorption piece;
The water treatment facilities includes the beds of precipitation, coagulating layer, filter screen, boulder bed, pH regulating courses successively from bottom to top, at water
Manage top of the water inlet located at the beds of precipitation of device, delivery port is thrown located at the top of pH regulating courses, coagulating layer provided with coagulant
Feeder apparatus, pH regulating courses are provided with pH adjusting agent throwing device and agitating device.
As an improvement, also include the first valve, the second valve, the 3rd valve;First valve is on water inlet pipe, institute
The second valve is stated on return duct, the 3rd valve is on outlet pipe.
Improved as another kind, the quantity of the deflection plate is 7.
Beneficial effect:Sulphur ammonium exhaust purifier provided by the utility model is simple in construction, cost is cheap, easy to use, if
Standby small investment, sulphur ammonium tails dedusting efficiency high are easy to operate.
Brief description of the drawings
Fig. 1 is the structural representation of the new sulphur ammonium tail gas clean-up deduster of the utility model.
Fig. 2 is the structural representation of pretreatment unit.
Fig. 3 is the structural representation of after-treatment device.
Fig. 4 is the structural representation of water treatment facilities.
Embodiment
The new sulphur ammonium tail gas clean-up deduster of the utility model is further illustrated below.
New sulphur ammonium tail gas clean-up deduster, including body 1, the air inlet 2 located at the side wall of body 1, located at the top of body 1
3, one groups of gas outlet deflection plate 4, water inlet pipe 5, the shower 9 on water inlet pipe 5, return duct 6, on return duct 6
Circulating pump 10, outlet pipe 7, overflow pipe 8, the overfall 11 on overflow pipe 8, water receiver 12, the first valve 13, the second valve
14th, the 3rd valve 15, pretreatment unit 16, after-treatment device 17, water treatment facilities 18;One group of deflection plate 4 is located at the He of air inlet 2
Between gas outlet 3, and it is staggered up and down;Shower 9 is located between top adjacent baffle 4;The one end of return duct 6 and body 1
Bottom is connected, and the other end is connected with water inlet pipe 5;The one end of outlet pipe 7 is connected with return duct 6, the other end and water receiver 12 connect;Overflow
Head piece 11 is located at the bottom of body 1, and the one end of overflow pipe 8 is connected with water receiver 12;First valve 13 is on water inlet pipe 5, the second valve
Door 14 is on return duct 6, and the 3rd valve 15 is on outlet pipe 7;The quantity of deflection plate 4 is 7.
The top downward of pretreatment unit 16 set, including solid collecting layer 19 and be sequentially connected sand stone layer 20, match somebody with somebody
Air chamber 21, multistorey strainer mesh layer 22, solid collecting layer 19 are connected by porous plate 23 with gas distributing chamber 21 and multistorey strainer mesh layer 22, multilayer
Filter mesh layer 22 includes the filter screen that one group of aperture is sequentially reduced and is obliquely installed, and gas outlet and the air inlet 2 of multistorey strainer mesh layer 22 connect
Connect;
After-treatment device 17 includes desiccant layer 24, active carbon layer 25, the Electrostatic Absorption layer 26 being sequentially connected from bottom to top
With filter screen 27, Electrostatic Absorption layer 26 is interior to be provided with one group of Electrostatic Absorption piece 28;
Water treatment facilities 18 includes the beds of precipitation 29, coagulating layer 30, filter screen 31, boulder bed 32, pH regulations successively from bottom to top
Layer 33, the water inlet of water treatment facilities 18 are located at the top of pH regulating courses 33, coagulating layer located at the top of the beds of precipitation 29, delivery port
30 are provided with coagulant dosage device 34, and pH regulating courses 33 are provided with pH adjusting agent throwing device 35 and agitating device 36.
The new sulphur ammonium tail gas clean-up deduster operation principle is as follows:
Recirculated water is flowed back by water inlet pipe 5, shower 9, body 1, return duct 6;Pass through the overflow of overflow pipe 11, the overflow mouth of pipe
It is recirculated water to arrive the bottom of body 1 below;Handled, avoided using water after a period of time using water treatment facilities 16 in water cycle process
Capacity reduces, and treatment effect reduces.
Come to the preprocessed device processing of dust-containing tail gas of coke-oven plant's ammonium sulfate workshop section fluid bed dryer, first pass around sandstone
17 coarse filtration of layer, then the multistorey strainer mesh 19 that via hole diameter is sequentially reduced filter, and the coarse granule filtered down is solid because gravity drops to naturally
Body collecting layer 20, the treating capacity of body 1 is substantially reduced after pretreatment, improves treatment effeciency;Gas is entered by air inlet 2 again
Enter in new sulphur ammonium tail gas clean-up body of deduster 1, have one group of deflection plate 3 in body 1, dusty gas is around deflection plate about 3
It flow to outlet and remove moist chambers, flowed into by gas outlet 3 in after-treatment device 16, is further adsorbed in active carbon layer again after drying
Dusty gas in tail gas, then remaining powered little particle is adsorbed in Electrostatic Absorption layer 19, pure air row is obtained after filtering
Go out.
When high speed bypasses the gap with the water surface below deflection plate 3 downwards, gas moves in a circle gas, including:(1) wash
Wash dust removal process:Move around the gas of upper baffle, with the water droplet move toward one another sprayed in shower, washed upwards
Dedusting, sulphur ammonium particle is dissolved in water droplet in gas;(2) dust removal process is impacted:In gas sulphur ammonium particle and entrainment water droplet by from
The effect high-speed impact water surface of mental and physical efforts, in the water of bottom, water droplet also converges sulphur ammonium grain dissolution with lower section water.Dust-containing tail gas except
Entering repeat impact dedusting and multiple spraying and dedusting in dirt device, gas is purified, and reach deduster afterbody removes moist chambers,
Here gas flow rate is reduced, and droplet settling is discharged in air to the water surface, last gas from gas outlet 3 in gas.