A kind of adsorption, desulfurization, denitration device
Technical field
The utility model relates to a kind of smoke eliminator, specifically a kind of adsorption, desulfurization, denitration device.
Background technology
Containing environmentally harmful SO in coke oven flue waste gas
2, NO
x, SO in waste gas under normal circumstances
2, NO
xconcentration all exceeded the emission limit that relevant national standard specifies, need to remove it, i.e. desulphurization denitration.For the coke oven flue waste gas that temperature is lower, adopt activated coke/coke absorption method and be optimal selection by the SCR method that ammonia makees reducing agent, and adsorption, desulfurization, denitration device is one of key equipment of this desulphurization denitration method.The material require used as absorption and catalysis fully contacts with stack gases, and the adsorption effect good with ensuring equipment and sufficient SCR react, and make the efficiency that desulphurization denitration reaches higher.The material that in existing desulfuring and denitrifying apparatus, absorption and catalysis use and the way of contact of flue gas have adverse current and cross-flow two kinds, cross-current configuration equipment resistance is little, but it is few with the chance of smoke contacts, and although the probability of countercurrent flow material and smoke contacts is many, but equipment resistance is bigger than normal, system cloud gray model energy consumption is caused to increase.
And existing adsorption, desulfurization, denitration device adopts integrated design mostly, when use a period of time, after treatment effect does not meet standard, need all to change sorbing material, but some (top) sorbing material is also in firm operational phase, causes the waste greatly of sorbing material.
Utility model content
The purpose of this utility model is to provide a kind of adsorption, desulfurization, denitration device, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of adsorption, desulfurization, denitration device, comprise air inlet and gas outlet, multiple adsorption module is provided with between described air inlet and gas outlet, between adsorption module and adsorption module, between air inlet and adsorption module, all be fixedly connected with by ring flange and bolt between gas outlet with adsorption module, projection is provided with inside the ring flange of gas outlet, the groove with male cooperation is provided with inside the ring flange of adsorption module upper end, also projection is provided with inside the ring flange of adsorption module lower end, also the groove with male cooperation is provided with inside the ring flange of air inlet, described adsorption module inside is provided with double-deck ring-shaped gate wall, conical flow guiding dividing plate and truncated cone-shaped dividing plate, double-deck ring-shaped gate wall central filler has for adsorbing the material with catalysis, form annular adsoption catalysis layer, conical flow guiding dividing plate and truncated cone-shaped dividing plate are crisscross arranged in double-deck ring-shaped gate wall both sides, the exhaust gases passes with multistage adsorption filtration layer is jointly formed with double-deck ring-shaped gate wall.
As further program of the utility model: described air inlet inside is provided with cushion chamber.
As the utility model further scheme: be provided with screen pack bottom described adsorption module.
As the utility model further scheme: be provided with stiffening ring outside described ring flange and bolt.
Compared with prior art, the beneficial effects of the utility model are: the utility model adopts modular multistage design, forms multiple adsorption modules from bottom to top, when treatment effect does not meet standard, any primary adsorption module can be changed; Not only sorbing material resource, and treatment effect is better; In addition, its use dismounting etc. are convenient, carried out the process of different levels, disposablely can obtain free of contamination air to flue gas; And take effective flue gas even distribution measure and multistage absorption, flue gas is evenly distributed in adsorption, desulfurization, denitration device inside, even gently by adsorption layer air-flow, flue gas and sorbing material multiple-contact, under making device remain on suitable resistive state, give full play to absorption and the catalytic action of sorbing material, the denitrification efficiency of device is effectively improved.
Accompanying drawing explanation
Fig. 1 is the structural representation of adsorption, desulfurization, denitration device;
Fig. 2 is the enlarged drawing at A place in Fig. 1;
Fig. 3 is the structural representation of adsorption module in adsorption, desulfurization, denitration device;
In figure: 1-air inlet, 2-cushion chamber, 3-adsorption module, 4-screen pack, 5-gas outlet, 6-projection, 7-groove, 8-sealing ring, 9-bolt, 10-ring flange, the double-deck ring-shaped gate wall of 11-stiffening ring, 31-, 32-conical flow guiding dividing plate, 33-truncated cone-shaped dividing plate.
Detailed description of the invention
Be described in more detail below in conjunction with the technical scheme of detailed description of the invention to this patent.
Refer to Fig. 1-3, a kind of adsorption, desulfurization, denitration device, comprise air inlet 1 and gas outlet 5, multiple adsorption module 3 is provided with between described air inlet 1 and gas outlet 5, described adsorption module 3 is all fixedly connected with by ring flange 10 and bolt 9 with between adsorption module 3, between air inlet 1 with adsorption module 3, between gas outlet 5 with adsorption module 3, is provided with protruding 6 inside the ring flange 10 of described gas outlet 5; Be provided with inside the ring flange 10 of adsorption module 3 upper end and protruding 6 grooves 7 coordinated, be also provided with inside the ring flange 10 of adsorption module 3 lower end and protruding 6; Also be provided with inside the ring flange 10 of air inlet 1 and protruding 6 grooves 7 coordinated; Described adsorption module 3 inside is provided with double-deck ring-shaped gate wall 31, conical flow guiding dividing plate 32 and truncated cone-shaped dividing plate 33, double-deck ring-shaped gate wall 31 central filler is for adsorbing the material with catalysis, form annular adsoption catalysis layer, conical flow guiding dividing plate 32 and truncated cone-shaped dividing plate 33 are crisscross arranged in double-deck ring-shaped gate wall 31 both sides, jointly form the exhaust gases passes with multistage adsorption filtration layer with double-deck ring-shaped gate wall 31.
In actual applications, flue gas can be selected by the number of times of annular adsoption catalysis layer according to adsoption catalysis properties of materials, under the prerequisite ensureing certain denitrification efficiency, reduce the quantity of adsorption module 3, to reduce the resistance of device as far as possible.
Described air inlet 1 inside is provided with cushion chamber 2.
Screen pack 4 is provided with bottom described adsorption module 3.
Stiffening ring 11 is provided with outside described ring flange 10 and bolt 9.
Operation principle of the present utility model is: the out of stock device of this adsorption desulfurize adopts modular multistage design, forms multiple adsorption modules from bottom to top, when treatment effect does not meet standard, any primary adsorption module can be changed; Not only sorbing material resource, and treatment effect is better; In addition, its use dismounting etc. are convenient, carried out the process of different levels, disposablely can obtain free of contamination air to flue gas; And take effective flue gas even distribution measure and multistage absorption, flue gas is evenly distributed in adsorption, desulfurization, denitration device inside, even gently by adsorption layer air-flow, flue gas and sorbing material multiple-contact, under making device remain on suitable resistive state, give full play to absorption and the catalytic action of sorbing material, the denitrification efficiency of device is effectively improved.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, can also makes a variety of changes under the prerequisite not departing from this patent aim.