CN101569811A

CN101569811A - Porous ceramic grid atomizing deposition CO2(SO2) purifying device

Info

Publication number: CN101569811A
Application number: CNA2008100644234A
Authority: CN
Inventors: 徐永涛; 徐永新; 徐千慧; 徐婧; 曹卫东; 徐实谦
Original assignee: Individual
Current assignee: Xu Qianhui; Xu Yongtao
Priority date: 2008-05-04
Filing date: 2008-05-04
Publication date: 2009-11-04
Anticipated expiration: 2028-05-04
Also published as: CN101569811B

Abstract

The invention belongs to a porous ceramic grid atomizing deposition CO2(SO2) purifying device and relates to a technology of the removal and the emission reduction of smoke greenhouse gases (such as CO2, SO2, and the like). When high-temperature smoke CO2(SO2) airflow passes through mesh grid (holes)14 and micro-holes of porous ceramic plates 15 and 16, dust particles are filtered and removed; the airflow enters a double-layer grid atomizing deposition purifier, gas molecules and sodium silicate mist are mixed for contact and carry out chemical reaction so as to generate a new product and continue to be adsorbed and diffused by double-layer grids 24, 27 and 28 to fully react, and then the emission reduction of CO2 is realized; aiming at the emission reduction of SO2 molecules, a layer of mixture of furan resin, phosphoric acid and peroxide is sprayed on the double-layer grids; when the SO2 and the mixture participate in the curing reaction during contact and continuously react to be changed until being completely cured, the aim of the emission reduction of the SO2 can be realized; and the SO2 is emitted to the atmosphere finally. The device has the advantages of simple structure, easy operation, easy processing, low cost and easy popularization.

Description

Porous ceramics canopy lattice spray deposition CO 2(SO 2) air purifying apparatus

Technical field:

The present invention relates to all and can generate harmful greenhouse gases (CO in fire coal or burning and chemical reaction process ₂, SO ₂Deng) enter atmosphere, atmosphere is polluted, can reduce the discharging of greenhouse gases and soot dust granule dust by this cover purifier.

Background technology:

At present, the discharge capacity that reduces greenhouse gases is being paid close attention to and addressed in the whole world all, prevent the variation of terrestrial climate, the content of 07 year greenhouse gases has reached 430ppm, China's glacier area has dwindled 3,248 ten thousand square kilometres over nearly 40 years, the annual rising 3.3mm in 93-96 sea level, particularly gas concentration lwevel increases year by year, can cause the ocean anoxic, can cause disaster to the mankind, though various countries take several steps, such as priority invention cyclone type, pulsed, electrostatic, cloth-bag type cleaner etc., but can only reduce the discharging of particle smoke contamination thing, and to CO ₂(SO ₂) discharging of gas, still there is not effective reduction of discharging measure, this cover purifier of being invented can solve an above-mentioned difficult problem, and apparatus structure is simple, and technology is easily grasped, and cost is low, and the process-cycle is short, easily applies.

Summary of the invention:

Purpose of the present invention just provides a covering device, and it can have the greenhouse gases of minimizing CO again by udst separation soot dust granule (dust) ₂, SO ₂The function of gas discharging, apparatus of the present invention are by thermal energy exchange (heat radiation) device (1), porous ceramics soot dust granule (dust) clarifier (2) grid spray deposition clarifier (3), porous carbon asbestic blanket absorber (4) and air-introduced machine (5) are formed (seeing Fig. 1,4,6,7,10,12,13,14).Described thermal energy exchange (heat radiation) device (1), include first group of thermal energy exchange (heat radiation) device (see figure 1), second group of thermal energy exchange (heat radiation) device (seeing figure six), the two external and internal compositions, the device identical, it is that the jacket that is square is welded by steel plate, coal fire discharged dust, connect admission line by airflow inlet flange 1, link to each other with square clamshell base 2, base is by being assembled with the secondary radiator coil altogether in pin leg 3 supporting (being seated in ground tightens) thermal energy exchange (heat radiation) the device side shells.One-level heat radiation coiled pipe 4 (see figure 4)s are the vertical coiled pipe of assembling side by side, and secondary radiator coil 5 is horizontal lamination assembling placements, be by flange 6 location in the middle of radiator side's shell, be fastenedly connected, there is ventilation duct flange 7 on its top, and is connected with the ventilation shaft flange 8 of the symmetry on second group of thermal energy exchange (heat radiation) device top.Second group of thermal energy exchange (heat radiation) device structure and the identical (see figure 6) of first group of thermal energy exchange (heat radiation) device structure; Be equipped with recirculated cooling water water inlet 9 and cooling water outlet 10 on this external thermal energy exchange (heat radiation) device side clamshell, and connect outer water source (pump).The water that flows out through outlet can utilize (bathing etc.).The air-flow that heat exchange is cooled through secondary enters porous ceramics soot dust granule clarifier (2) again through gas outlet flange 11, its contour structures is a drum shape, be to be rolled into the tubular (see figure 7) that is welded by steel plate, its flat crouching on ground, four pin legs and supporting drum are arranged, air-flow is earlier by inlet flange 13 (being connected with heat exchanger gas outlet flange 11), be provided with one deck high silica fiber mesh grid (stand up and vertical) 14 in many newborn ceramic purifiers with air flow direction, two layers of special-shaped

porous ceramics piece

15,16, mesh grid 14 is to form with the high silica fiber braiding, mesh has certain size in the form of sheets, can insert or pull out (see figure 8) from porous ceramics clarifier one side, replace use, be by two layers of special-shaped porous ceramics piece 15 afterwards, 16, between certain intervals (also be stand up with air flow direction perpendicular) is arranged, can insert or pull out (seeing that Fig. 8 illustrates) from porous ceramics clarifier (2) one sides, it is exactly to add upper sleeve cover 18 sealings with drum cylinder ear 17 (every layer has 10) and with the firm connection of bolt that the drum segmentation connects, ground floor abnormity porous ceramics piece 15 holes are bigger, second layer abnormity porous ceramics piece 16 holes are less, port of export flange 19 is connected with double-deck grid spray deposition clarifier (3) inlet flange 20, double-deck grid spray deposition clarifier (3) also is a drum shape, stand on the ground, by 21 supportings of three pin legs, divide three Room in the clarifier, first indoorly is provided with three with on the circumference, uniform atomizer 22, three dithers atomizings of the outer connection of drum generators 23, electronic stirring vane 25 is driven by small size motor 26; Second and third chamber is provided with double-deck grid spray deposition net 24,27,28 respectively, horizontal positioned (vertical) with airflow direction, can insert, pull out (replacement) and see that every group of grid net of Figure 11 is to be tightened together by two sheet mesh grids (staggered combination between mesh), and the monolithic mesh grid also is to form with glass fibre or high silica fiber braiding.Grid spray deposition device (3) top has ventilation duct flange 29 to be connected with the vertical side's shell of porous carbon asbestic blanket adsorption chamber (4) top air inlet pipe flange 30, by 31 supportings of three pin legs, sitting ground.(being rectangular standing up) porous carbon asbestic blanket length is set in the adsorption chamber (4) is with 32, the long certain intervals that has, parallel up and down placement (Figure 13) gas outlet flange 33 is connected (seeing Figure 14) with air-introduced machine (5) air draft inlet 34, at last the gas after the purified treatment is entered atmosphere through exhaust outlet 40.

System of the present invention operation is very easy, and available computers controls each clarifier course of work, establishes a plurality of test points on pipeline, monitoring temperature, gas (composition) content, granular size and content etc.Simple in structure, easily processing and manufacturing, technology maturation, reliable, stable, at home, can generally be applicable outward.

Description of drawings:

Fig. 1 is the general structure schematic diagram of heat exchange of the present invention (heat radiation) device; Fig. 2 is the A-A view of Fig. 1; Fig. 3 is the side view of Fig. 2; Fig. 4 is the structural representation of first group of radiator coil; Fig. 5 is the side view of Fig. 4; Fig. 6 is second group of thermal energy exchange (heat radiation) device structural representation; Fig. 7 is a porous ceramics soot dust granule clarifier structural representation; Fig. 8 is that Fig. 7 B-B inserts, pulls out schematic diagram in drum one side; Fig. 9 is the side view of Fig. 8; Figure 10 is double-deck grid spray deposition clarifier structural representation; Figure 11 is double-deck grid spray deposition clarifier Figure 10 A-A rotation schematic diagram; Figure 12 is Figure 11 A side view; Figure 13 is a porous carbon asbestic blanket adsorption chamber structural representation; Figure 14 is an air-introduced machine assembling schematic diagram.

1, airflow inlet flange; 2, square clamshell base; 3, pin leg; 4, one-level heat radiation coiled pipe; 5, secondary heat radiation coiled pipe; 6, flange; 7, top portion ventilation pipe flange; 8, second group of thermal energy exchange radiator top inlet flange; 9, cooling water water inlet; 10, coolant outlet; 11, gas outlet flange; 12, pin leg; 13, air flow inlet flange; 14, high silica mesh grid; 15, special-shaped porous ceramics piece; 16, special-shaped porous ceramics piece; 17, drum cylinder ear; 18, sealing upper shield; 19, porous ceramics clarifier top air stream outlet flange; 20, grid spray deposition clarifier inlet flange; 21, pin leg; 22, atomizer; 23, dither atomizer; 24, double-deck grid net; 25, agitation blades; 26, small machine; 27, double-deck grid net; 28, double-deck grid net; 29, grid spray deposition clarifier top air stream outlet flange; 30, porous carbon asbestic blanket top air flow inlet flange; 31, pin leg; 32, rectangular band asbestic blanket; 33, outlet(discharge) flange; 34, air-introduced machine inlet flange; 35, air-introduced machine; 36, dreg collecting slot; 37, dreg collecting slot 38, dreg collecting slot 39, dreg collecting slot 40, exhaust outlet.

Specific embodiments:

The specific embodiment one: (reduce discharging CO ₂Process), referring to Fig. 1-14 explanation present embodiment.

Present embodiment, earlier thermal energy converter (1) porous ceramics clarifier (2) double-deck grid spray deposition clarifier (3) porous carbon asbestic blanket absorber (4) and air-introduced machine (5) are assembled into radiator coil 4 respectively, 5, import and export recirculated

cooling water

9,10, dither atomizer shower nozzle, dither atomizing

generator

22,23, stirring motor blade 25 and band porous carbon asbestic blanket 32, air-introduced machine 35 etc., square shell or barrel structure are interconnected

flange

6,7,11,13,19,20,28,29,30,33 and all cylinder ears 17 etc. fastening with the bolt location, insert glass fibre or high silica fiber mesh grid 14 respectively by spigot successively again, abnormity

porous ceramics piece

15,16, double-deck

grid strainer net

24,27,28, and cover socket 18 with capping, after starting this blower fan 35, all system's (in pipeline) is negative pressure, 23 energisings of dither atomizing generator, then reaction medium liquid is atomized, spray in the clarifier Room (3) first through atomizer 22, the medium drop of opening small machine blade (rotation) 25 atomizings is simultaneously stirred, when opening into smoke dust duct 1, the produced pollution of then burning flue dust air-flow will enter in the thermal energy converter (1) from air inlet flange 1, high temperature is harmful to the flue dust air-flow like this, through one,

secondary radiator coil

4,5 o'clock, heat is reached in the coiled pipe, there is the water that circulates to pass through and adopt vertical or level to stack in the coiled pipe of combination, (finish inflow 9 by water pump, outflow 10) finishes heat exchange, the air communication that is cooled is crossed pipe flange 6 and is entered second group of heat exchanger, the air communication side of mistake clamshell flange 7 enters in the porous ceramics clarifier (2) through flange 8 after finishing the secondary heat exchange equally, and successively through fiberglass braided net 14, abnormity

porous ceramics piece

15,16 enter in the double-deck grid spray deposition clarifier (3) through flange 20 through outlet(discharge) flange 19, then air-flow is puddled with reaction medium and is contacted, air-flow rises to first, two, three grades of double-deck grid

spray deposition nets

24,27,28, by top exit flange 29, suction flange 30 enters in the porous carbon asbestos absorber (4), and by rectangular band porous carbon asbestic blanket 32 after enter air-introduced machine by air-introduced machine inlet 34, enter atmosphere by ventilating opening 40.

The specific embodiment two: if contain SO simultaneously in the flue gas ₂Gas then needs will give earlier and handling every grade of double-deck grid spray deposition net, promptly spray one deck special reaction medium on the net after (make up fastening) be inserted into 24,27,28 respectively, other process is with mode one, as the main reduction of discharging SO that purifies in the flue gas ₂Gas, in the then double-deck grid spray deposition clarifier (3), the whipping procedure that do not atomize, other process is with mode one.

The specific embodiment three: the high-temperature smoke air-flow can be introduced earlier in the porous ceramics clarifier (2), entered thermal energy converter (1) again, all the other processes are all with mode one.

The specific embodiment four: at whole CO ₂(SO ₂) each pipeline of air purifying apparatus system and purification, adsorption chamber can be provided with test point (mouth), carry out online detection respectively: temperature, pressure, air-flow component content, dust granules content etc., and, purify overall process with mode one by detection of computer control dynamic analog and the demonstration of liquid crystal dynamic analog display screen.

Operation principle:

Apparatus of the present invention are to have soot dust granule to pollute and discharging CO when combustion product ₂(SO ₂) can finish that thermal energy exchange, filtration, purification are handled, the adsorption and diffusion process during greenhouse gases, can purify, remove the reduction of discharging pollutant.

At first, in this closed system, visual thermal current is to flow in pipe-line system when starting air-introduced machine 35 (seeing Figure 14) or utilizing existing chimney, presents negative pressure in the whole system, know on arbitrary section of this system that according to the bernoulli law air-flow always flows to the negative pressure direction.When high temperature hot gas flows in the thermal energy converter (see figure 1), and successively through

snakelike copper pipe

4,5 combinational gaps of heat radiation vertical and that level stacks, contact with the copper pipe wall, then the heat that it is carried is passed to copper pipe, import in the water that circulates in the copper pipe, like this, behind two groups of thermal energy exchange devices, finish exchange heat, hot stream temperature drops to (circulating water temperature can utilize hot water after rising) about the 40-50 degree; The soot dust granule of being carried secretly in the air-flow simultaneously, part has reduced flowing velocity owing to have the resistance of motion when passing snakelike copper pipe gap, and some soot dust granule can sink to collection

cinder notch

36,37 and get rid of.

They are two years old, when air-flow enters porous ceramics clarifier (see figure 7), the air-flow that is turbulent condition, during by mesh grid 14, be split into thousands of tiny air-flows, make its turbulent flow level off to laminar flow by prosperity, at this moment, with some undersized soot dust granules that comprise of air current flow, all can sink to boiler drum bottom (getting rid of) by collection cinder notch 38, air-flow continues to flow, passing through one, secondary porous ceramics piece (15,16) time, being compelled to again by random, is again to flow in the unordered hole, promptly strengthens flow resistance, make those tiny micronic dust particles by obstruction be difficult to by, not to sink, be deposited on exactly in the micropore of porous ceramics piece that dust can be removed more than 99.9% at Ji Zhakouchu.

Its three, the flue gas that purified (contains CO ₂Or SO ₂) enter in the double-deck grid spray deposition clean room (see figure 10), can meet with reaction medium liquid atomizing droplet and be in the stirring, so CO ₂Gas molecule just can fill part with the reaction medium droplet and contact, and participate in reaction and generate new product, and be removed a part, and the deposition adsorption and diffusion process on the double-deck grid of what subsequently can be proceeded this reaction, remaining a spot of CO ₂Gas can enter atmosphere through air-introduced machine 35, simultaneously if spray (adhering to) special reaction medium liquid on double-deck

grid strainer net

24,27,28, when containing SO ₂Contacting with the special reaction medium when air communication is crossed grid hole reacts, and is continuous process, is over until reaction to change, insert the double-deck grid through spraying more again, realizes SO ₂Reduce discharging.

Its four, banded porous carbon asbestic blanket also has very strong adsorptivity, flows through and adsorbs for the last time here, smokeshade can realize that 100% removes.

Claims

1. dust granules purifier barrel structure and drum connecting portion one side have insertion (pulling out) mouth and simple ear special construction to be provided with; Fiberglass braided net, porous ceramics piece can freely insert or pull out (replacing) and can design two layers, three layers or multilayer at the drum connecting portion.The drum cylinder ear is fastening and edged lid sealing on this side insertion mouth with the bolt location; Mesh grid is with high silica fiber or fiberglass braided forming, and certain mesh size and thickness are arranged; Porous ceramics piece is to mix with carborundum powder and dioxide/silica gel liquid solution to make slurry (adding a certain amount of agent with fixed attention of touching).Abnormity (with the processing of drum cross sectional shape gauge) the porous plastics sheet that cuts is invaded in this slurry and rubbed, and slurry is removed in extruding, send behind the natural air drying to add thermal bake-out in the electric furnace, and is standby with the cold taking-up of stove.

2. the double-deck grid net of producing, be to do two monolithic glass fiber knitted nets (certain mesh size and thickness are arranged) earlier, again with two mesh grids by mesh intervening portion (mesh apart from stagger 1/2 mutually) be combined into one (for double-deck grid net) can insert, pull out or change (also adding seal cover) in drum one side; If reduce discharging CO2 gas, just double-deck grid spray on the net one deck reaction medium sodium silicate solution and with sodium silicate aqueous solution carry out the high-frequency vibration atomizing handle form droplet under stirring with CO2 gas molecule reaction generation sodium carbonate; If remove SO ₂Just with the mixing material of furane resins, phosphoric acid, peroxide as reaction medium liquid, it is online that it is sprayed on double-deck grid, works as SO ₂Molecule reacts curing after contacting with it, and question response is all over and pulls out; Insert the new double-deck grid net of new spraying.

3. alternate circular hole or the oblong aperture stamped increases contact area on rectangular carbon asbestic blanket, promotes adsorption capacity, adsorb that saturated back is changed or again the row processing reuse.

4. this cover purifier needs add with welded-steel plate construction except that being used as square clamshell that high temperature gas flow carries out heat exchange that all available high strength alumin ium alloy of other purification adsorbent equipment, plastic-steel, engineering plastics come the processing and manufacturing shell one deck thermal insulation layer.

5. size is processed into small test device with this cleaning system in proportion; Can adopt computer simulation to carry out thermal current composition, temperature, granularity content ... the control of test and each technical parameter and the simulation of the dynamic liquid crystal of computer programming control system show, reduce discharging simulation test experiment.