CN102452560B - Coal-burned flue gas pollutant adsorbent jetting device - Google Patents
Coal-burned flue gas pollutant adsorbent jetting device Download PDFInfo
- Publication number
- CN102452560B CN102452560B CN 201010515525 CN201010515525A CN102452560B CN 102452560 B CN102452560 B CN 102452560B CN 201010515525 CN201010515525 CN 201010515525 CN 201010515525 A CN201010515525 A CN 201010515525A CN 102452560 B CN102452560 B CN 102452560B
- Authority
- CN
- China
- Prior art keywords
- adsorbent
- coal
- flue gas
- pipe
- straight shape
- 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 invention relates to the field of coal-burned flue gas filtration, in particular to a coal-burned flue gas pollutant adsorbent jetting device. The coal-burned flue gas pollutant adsorbent jetting device consists of two parts, namely a conveying pipeline and a jetting pipeline, wherein the conveying pipeline comprises a cambered inlet pipe and a plurality of straight dispersion pipes; an adsorbent inlet is formed in the center of a cambered section of the cambered inlet pipe; the plurality of straight dispersion pipes are uniformly and vertically communicated to a chord line section of the cambered inlet pipe at equal intervals; outlet ends of the straight dispersion pipes are adsorbent outlets; extension lengths of the adsorbent outlets are increased from the center to the two sides stage by stage; and a jet gun in the jetting pipeline is communicated with the adsorbent outlets of the straight dispersion pipes through hoses. The adsorbent outlets are formed in a trapezoidal shape at equal intervals, so that an adsorbent is uniformly jetted, the optimal adsorptive removal effect is achieved, the emission of the flue gas pollutant of a boiler of a coal fired power plant can be reduced well, the comprehensive utilization of flying ash of a power plant is not influenced, and the device has broad application prospect.
Description
Technical field
The present invention relates to the coal-fired flue-gas filtration art, relate in particular to a kind of pollutant absorbent jetting system.
Background technology
The energy general layout that coal is main body is quite grown in one period and can not changed.The discharge situation that the coal-fired oxysulfide produced, oxides of nitrogen, flue dust and micro heavy pollute is increasingly serious, brings huge pressure to environmental protection, and is endangering people's health.For adapting to more and more stricter emission limit set, various countries have taked a lot of measures to carry out pollution reduction, the comparison of technology maturation that oxysulfide, oxides of nitrogen are removed, have quite a lot of industrialization that realized, turned at present the heavy metals emission aspects such as pellet, mercury.
The present situation that in the coal-fired power station boiler fume exhaust, exists serious heavy metal Hg to pollute now, general by the solution of the methods such as adsorbent absorption method, fixed bed filtering method, wet flue gas desulfurization associating removal of mercury method, first two all needs to have the adsorbent of efficient cheapness, can be commonly referred to as the adsorbent absorption method, the third needs oxidizer that the Elemental Mercury in flue gas is oxidized to divalence mercury.What research was more at present is first two.The adsorbent absorption method is mainly to remove the mercury in flue gas by the adsorption of adsorbent.In the adsorbent absorption method, adsorbent need to spray in the flue that enters coal-fired flue-gas.In the sorbent injection process, jetting system is extremely important, is determining to a great extent the distribution of adsorbent in flue and to the adsorbing and removing effect of pollutants.
Current technology is comparatively ripe, coal-fired flue-gas pollutant absorbent that comparatively recommend is carbon back class adsorbent, on the other hand, the biggest obstacle of carbon-based adsorbent application derives from the impact of its application on coal-burning power plant's flying dust comprehensive application, because after unburned carbon in flue dust exceeds standard, to directly have influence on the impact of flying dust blending on indexs such as concrete strengths, this uses few adsorbent of trying one's best to reach maximum adsorbing and removing efficiency with regard to requiring.Adsorbent is sprayed at the coal-fired power station boiler back-end ductwork, and the deployment conditions of adsorbent in flue directly has influence on the adsorbing and removing efficiency of adsorbent to pollutants.Need exploitation adsorbent to be there is to injection system and the device of good transportation and dispersion effect, to reach maximum adsorbing and removing effect.
As shown in Figure 1, in existing Chinese patent 200720047558.0, a kind of powder-quantity adjustable pneumatic conveying injection apparatus is disclosed, by inclination material blanking tube system, the head bearing sealing system, the lower bearing sealing system, horizontal strength delivery injector forms, material blanking tube divides three sections, upper material blanking tube and dropping material pipe are arranged vertically, middle material blanking tube is in tilted layout, the angle of inclination of middle material blanking tube is 70～80 degree, screw rod is housed in material blanking tube, the upper end of screw rod is designed with scraping blade, screw rod the first half diameter is large and be designed with screw thread, the inclination angle of screw thread is 10～25 degree, screw rod the latter half diameter is little, screw axis is with the turning cylinder dead in line that drives screw rod 1, and with the axis of horizontal Pneumatic conveying pipeline not on same plane, the two axial lines spacing is 1/4th of horizontal Pneumatic conveying pipeline external diameter, on the head bearing seal cover cap, angular contact bearing is housed, between horizontal Pneumatic conveying pipeline and head bearing seal cover cap, screw rod is designed with Sealed casing pipe outward, angular contact bearing is designed with the lower bearing seal cover cap outward, turning cylinder is connected with retarder, frequency converter is connected with motor.
During above-mentioned conveying jetting system work, by the horizontal pneumatic transporting of rotating speed cooperation that is adjusted in screw rod in material blanking tube, send, reach accurate control and carry the powder amount and effectively prevent that in storehouse, powder, in the overstocked obstruction of the blanking mouth of pipe, has guaranteed the homogeneity of powder conveying.Simultaneously, the respective outer side edges of material blanking tube, screw rod, Sealed casing pipe and bearing felt, guaranteed the leak tightness of bearing and horizontal strength delivery injector.The present invention accurately controls the operational throughput of powder, effectively prevents overstocking and stopping up of blanking mouth of pipe powder, has guaranteed the homogeneity of powder conveying; Inclination material blanking tube structure makes turning cylinder depart from horizontal Pneumatic conveying pipeline center, has reduced the wearing and tearing of the compound of powder and gas to pipeline and screw rod, has reduced the resistance that pipeline is carried.
This is adjustable, and powder amount pneumatic conveying injection apparatus only can be realized center fuel injection, realizes accurately controlling at single-point the purpose of powder amount, can't realize that the flue large space multi point injection such as coal burning boiler and large space powder are uniformly distributed.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of coal-burned flue gas pollutant adsorbent jetting device, and the adsorbent outlet in this device is equidistantly arranged in echelon, realizes the even injection of adsorbent, reaches the optimal adsorption removal effect.
The present invention is achieved in that a kind of coal-burned flue gas pollutant adsorbent jetting device, by transfer line and injection line two parts, formed, described transfer line comprises circular arc induction pipe and straight shape dispersion pipe, the arc section center of described circular arc induction pipe has the adsorbent import, the total some equidistantly even vertical connections of described straight shape dispersion pipe are on the string of a musical instrument section of circular arc induction pipe, the exit end of straight shape dispersion pipe is the adsorbent outlet, the extension elongation of adsorbent outlet by mind-set both sides direction raise step by step; Described injection line comprises several and straight shape dispersion pipe spray gun one to one, between the adsorbent outlet of described spray gun and straight shape dispersion pipe, passes through soft pipe connection.
Described spray gun becomes matrix to arrange.
The transfer line of coal-burned flue gas pollutant adsorbent jetting device of the present invention comprises circular arc induction pipe and straight shape dispersion pipe, the some equidistantly even vertical connections of straight shape dispersion pipe are on the string of a musical instrument section of circular arc induction pipe, make the adsorbent outlet equidistantly arrange in echelon, do not increasing coal-burning power plant's major equipment, do not affect in the situation of safe operation of power plant, realize the even injection of adsorbent, reach the optimal adsorption removal effect, can reduce well the discharge of coal-fired power station boiler flue gas pollutant, do not affect again the flying ash in electric power plant comprehensive application, have broad application prospects.
The accompanying drawing explanation
Fig. 1 is coal-burned flue gas pollutant adsorbent jetting device structural representation of the present invention;
Schematic diagram is looked on the right side that Fig. 2 is Fig. 1;
The schematic top plan view that Fig. 3 is Fig. 1;
Fig. 4 is the conveying pipeline structure schematic diagram.
In figure: 1 circular arc induction pipe, 2 straight shape dispersion pipes, 11 adsorbent imports, 21 adsorbent outlets, 3 spray guns.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only are not used in and limit the scope of the invention for the present invention is described.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's statement, these equivalent form of values fall within the application's appended claims limited range equally.
As shown in Figure 1,2,3, 4, a kind of coal-burned flue gas pollutant adsorbent jetting device, by transfer line and injection line two parts, formed, described transfer line comprises circular arc induction pipe 1 and straight shape dispersion pipe 2, the arc section center of described circular arc induction pipe 1 has adsorbent import 11, the total some equidistantly even vertical connections of described straight shape dispersion pipe 2 are on the string of a musical instrument section of circular arc induction pipe 1, the exit end of straight shape dispersion pipe 2 is the adsorbent outlet, the extension elongation of adsorbent outlet 21 by mind-set both sides direction raise step by step; Described injection line comprises several and straight shape dispersion pipe 2 spray gun 3 one to one, between the adsorbent outlet of described spray gun 3 and straight shape dispersion pipe 2, passes through soft pipe connection; 3 one-tenth matrixes of described spray gun are arranged, and reduce the space of hold facility.
In the present embodiment, each hose length, the pressure drops according to adsorbent outlet 21 to spray gun 3 outlets equate, are set, and to guarantee the consistent of each jetting gun outlet adsorbent flow, are conducive to dispersed at flue of adsorbent; As shown in Figure 3, in order to reach adsorbent dispersed covering in the coal-fired flue-gas flue, the purpose of the pollutants such as adsorbing and removing heavy metal in flue gas mercury to greatest extent, the jet segment length that stretch out at each spray gun 3 jet exit places is set as required on the same cross section of flue, reach adsorbent and be uniformly distributed in flue, make the adsorbent adsorption effect reach maximization.
Claims (2)
1. a coal-burned flue gas pollutant adsorbent jetting device, it is characterized in that: by transfer line and injection line two parts, formed, described transfer line comprises circular arc induction pipe (1) and straight shape dispersion pipe (2), the arc section center of described circular arc induction pipe (1) has adsorbent import (11), the total some equidistantly even vertical connections of described straight shape dispersion pipe (2) are on the string of a musical instrument section of circular arc induction pipe (1), the exit end of straight shape dispersion pipe (2) is adsorbent outlet (21), straight shape dispersion pipe (2) Central Symmetry setting, the extension elongation of adsorbent outlet (21) by mind-set both sides direction raise step by step, described injection line comprises several and straight shape dispersion pipe (2) spray gun (3) one to one, between the adsorbent outlet of described spray gun (3) and straight shape dispersion pipe (2), passes through soft pipe connection.
2. coal-burned flue gas pollutant adsorbent jetting device as claimed in claim 1, is characterized in that: the arrangement of described spray gun (3) one-tenth matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010515525 CN102452560B (en) | 2010-10-22 | 2010-10-22 | Coal-burned flue gas pollutant adsorbent jetting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010515525 CN102452560B (en) | 2010-10-22 | 2010-10-22 | Coal-burned flue gas pollutant adsorbent jetting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102452560A CN102452560A (en) | 2012-05-16 |
| CN102452560B true CN102452560B (en) | 2013-12-25 |
Family
ID=46036318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010515525 Active CN102452560B (en) | 2010-10-22 | 2010-10-22 | Coal-burned flue gas pollutant adsorbent jetting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102452560B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104044927B (en) * | 2013-03-12 | 2016-08-31 | 丹东天和实业有限公司 | A kind of bulk cargo position feed pipe of forming part |
| CN109954373A (en) * | 2019-03-11 | 2019-07-02 | 浙江菲达环保科技股份有限公司 | A kind of Hg, SO3Cooperation-removal electric precipitator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1850937A (en) * | 1927-11-28 | 1932-03-22 | George S Messinger | Distributor |
| GB853450A (en) * | 1958-09-02 | 1960-11-09 | Boeing Co | Reversible thrust jet engine nozzle |
| CN2509139Y (en) * | 2001-12-07 | 2002-09-04 | 天津市阿斯米机械设备制造安装工程有限公司 | Efficient powder materials conveying machinery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58216829A (en) * | 1982-06-11 | 1983-12-16 | Sumitomo Metal Ind Ltd | Distributing method of particulate material pneumatically conveyed |
-
2010
- 2010-10-22 CN CN 201010515525 patent/CN102452560B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1850937A (en) * | 1927-11-28 | 1932-03-22 | George S Messinger | Distributor |
| GB853450A (en) * | 1958-09-02 | 1960-11-09 | Boeing Co | Reversible thrust jet engine nozzle |
| CN2509139Y (en) * | 2001-12-07 | 2002-09-04 | 天津市阿斯米机械设备制造安装工程有限公司 | Efficient powder materials conveying machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102452560A (en) | 2012-05-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104971575A (en) | Gas-liquid-solid separator, gas-liquid separator and plasma desulfurization and denitrification device comprising gas-liquid-solid separator and gas-liquid separator | |
| CN102824846A (en) | Axial and radial cross flow moving bed reactor and activated coke flue gas desulfurization and denitration technology thereof | |
| CN102059045A (en) | Venturi atomization compound wet type electrostatic flue gas treatment reactor | |
| CN108295596B (en) | Venturi wet dust collector and coal fired boiler flue gas purification system | |
| CN102452560B (en) | Coal-burned flue gas pollutant adsorbent jetting device | |
| CN107583463A (en) | A kind of tower desulfuring and denitrifying apparatus and desulfurization denitration method | |
| CN202173882U (en) | Device for removing sulfur dioxide and dioxin in sintering flue gas | |
| CN102423593A (en) | Method for simultaneously dedusting, desulphurizing and denitrating boiler flue gas in coal-fired industry | |
| CN102989315A (en) | Deashing device for SCR flue gas denitration system | |
| CN205216471U (en) | Industrial furnace sintering smoke pollutants cooperative control system | |
| CN202343093U (en) | Device for removing sulfur dioxide and dioxin from sintering flue gas | |
| CN207507222U (en) | A kind of drag-reduction energy-saving carries the desulfuration absorbing tower of effect | |
| CN201880473U (en) | Venturi spraying and wet static electricity combined type flue gas treatment reactor | |
| CN205672779U (en) | A kind of desulfuration spray tower spray equipment | |
| CN201684521U (en) | Flue gas demercuration reactor | |
| CN104258674B (en) | A kind of array type electrostatic atomization ultra-thin micro-particle coalescence Apparatus and method for | |
| CN204338010U (en) | For removing the dust pelletizing system of sulfur dioxide in sintering flue gas and dioxin | |
| CN202263524U (en) | In-furnace desulfurization device for high-efficiency desulfurization | |
| CN202191838U (en) | Flue gas disposing device of coal-fired industrial boiler | |
| CN212215118U (en) | Multi-working-condition powder injection device for waste incineration tail gas treatment | |
| CN107308805A (en) | Desulfurizing tower demister and desulfation dust-extraction device | |
| CN203704687U (en) | Flue gas recovery device of large sealed high-carbon ferrochromium calcium carbide furnace | |
| CN206215048U (en) | Board-like SCR denitration device | |
| CN213375955U (en) | A denitrogenation processing apparatus for handling nitrogen oxide waste gas | |
| CN205570043U (en) | Absorption tower sprays super clean release device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |