CN1467016A - Flue gas desulfurizing and desaltpeterizing down flow bed reactor - Google Patents
Flue gas desulfurizing and desaltpeterizing down flow bed reactor Download PDFInfo
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- CN1467016A CN1467016A CNA021241309A CN02124130A CN1467016A CN 1467016 A CN1467016 A CN 1467016A CN A021241309 A CNA021241309 A CN A021241309A CN 02124130 A CN02124130 A CN 02124130A CN 1467016 A CN1467016 A CN 1467016A
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Abstract
A down-flow fluidized-bed reactor for desulfurizing and denitrating fume is composed of the main body consisting of mixing chamber, descending pipe and material bin, fume inlet on the top of main body, fume outlet at lower end of descending pipe, distributor is said mixing chamber, one or more distribution plates in said descending pipe, and one or more fresh liquid desulfurizer and denitrater inlets at upper part of said descending pipe. Its advantages are needing no high-power draught fan, low height of apparatus, and high effect.
Description
Technical field
The present invention relates to a kind of fluidized-bed reactor, relate in particular to a kind of structural design that can carry out flue gas desulfurizing and desaltpeterizing down flow bed reactor simultaneously, belong to technical field of chemical.
Background technology
Except discharging sulfur dioxide can cause the acid rain pollution, the discharging of nitrogen oxide was also relatively more serious to the influence of environment in the coal steam-electric plant smoke, and it can destroy the stratospheric ozone layer of atmosphere, and itself also is a kind of greenhouse gases simultaneously.At present, flue gas desulfurization technique of the prior art mainly contains: wet desulphurization, spray dry desulfurization, absorbent regeneration desulfurization, sea water desulfuration, electron beam desulfurization and flue gas circulating fluidized bed desulfurization etc.Wherein, circulating fluid bed flue-gas desulfurizing has that system is simple, reduced investment, advantage that occupation of land is few, and desulfuration efficiency is higher, and system maintenance requires low, reliable.But all be to adopt to promote the tubular type circulating fluid bed reactor at present, thereby the pressure drop of system is bigger, needs powerful air-introduced machine.The technology of utilizing this method and apparatus to carry out flue gas desulfurization and denitrification simultaneously simultaneously referring to document " Takeshita M; Soud H.FGD performance and experience on coal fired plants.London:IEA Coal Research, 1993.35～58. " is not reported yet.
Summary of the invention
The objective of the invention is to design a kind of flue gas desulfurizing and desaltpeterizing down flow bed reactor that is used for, both can keep that existing circulating fluidized bed reactor system is simple, reduced investment, advantage that occupation of land is few, can effectively overcome the high deficiency of pressure drop again, energy efficient, the while can be realized the purpose of desulphurization denitration again.
The objective of the invention is to be achieved through the following technical solutions: a kind of flue gas desulfurizing and desaltpeterizing down flow bed reactor, mainly comprise reactor body, the gas-solid separator that is arranged on smoke inlet, the exhanst gas outlet on the reactor body and is arranged on the reactor outside, it is characterized in that: described reactor body by portion disposed thereon have the gas-solid mixing chamber of distributor, the feed bin that has the down-comer of one or more distribution grids and be arranged on its underpart constitutes, described gas approach is arranged on the top of reactor body; Described exhanst gas outlet is arranged on the side of down-comer end, and this exhanst gas outlet is connected with the import of the gas-solid separator that is arranged in the reactor outside, and the outlet of gas-solid separator solid material is communicated with feed bin; In the bottom of feed bin the strength delivery pump is housed, this delivery pump is communicated with the gas-solid mixing chamber by pipeline, and is provided with one and a plurality of fresh liquid desulfurization or denitrfying agent inlet at the upper position of down-comer.
The present invention compares with the circulating fluid bed reactor of existing riser, kept not only that circulating fluid bed reactor is simple in structure, reduced investment, advantage that occupation of land is few, and owing to adopt downflow fluidized bed, gas-solid moves downward along gravitational field, therefore, the reactor bed pressure drop is low, need not to install high-power air inducing equipment, so operating cost is low; The outlet of gas-solid is arranged on the bottom of reactor, has reduced the setting height(from bottom) of cleaner.
Description of drawings
Fig. 1 is the structural principle schematic diagram of the embodiment of the invention.
The specific embodiment
Below in conjunction with accompanying drawing, introduce the course of work of the present invention and concrete enforcement in detail:
The flue gas desulfurizing and desaltpeterizing down flow bed reactor structural representation that Fig. 1 designs for the present invention.
The present invention mainly comprises the reactor body that is made of mixing chamber 3, down-comer 1 and feed bin 7, be arranged on the smoke inlet 2 on reactor body top, be arranged on the exhanst gas outlet 13 of down-comer end profile, the strength delivery pump 9 that is arranged on the cyclone separator 10 of reactor outside and is installed in reactor bottom.In the gas-solid mixing chamber, be provided with distributor 4, in down-comer, be provided with one or more distribution grids 6, and be provided with one or more fresh liquid desulfurizing agents or denitrfying agent inlet at the upper position of down-comer.Exhanst gas outlet 13 is connected with the cyclone separator 10 that is arranged on the reactor body outside, and the material outlet of gas-solid separator is communicated with feed bin 7; Strength delivery pump 9 is connected with the gas-solid mixing chamber 3 on reactor top by pipeline 14.
Pending flue gas enters gas-solid mixing chamber 3 by the smoke inlet 2 on fluidized-bed reactor top, and with desulfurizing agent and the living reaction of denitrfying agent hybrid concurrency by distributor 4 ejections, then, gas-solid is advanced into down-comer 1 along under the gravitational field.Enter the gas of down-comer 1 and spray into fresh liquid desulfurization or the living reaction of denitrfying agent hybrid concurrency by fresh liquid desulfurization or denitrfying agent inlet 5, then, gas-solid is along the descending bottom of passing distribution grid 6 arrival down-comers of gravitational field.The distribution grid 6 that is arranged in the down-comer can adopt one or more as the case may be.Distributor and distribution grid have the time of staying of gas-solid in mixing chamber or down-comer of increasing and improve radially-arranged effect.Enter gas-solid separator through the descending gas of down-comer and part solid particle and carry out gas solid separation, gas-solid separator can adopt cyclone separator 10, this separator can be installed in the lower position place of reactor outside, and gas discharges after tail gas outlet 11 enters follow-up cleaner.The solid particle of cyclone separator bottom and down-comer bottom is because the effect of gravity enters the solid particle feed bin 7 of down-comer bottom, the part solid particle is got rid of from particle outlet 12, make the bottom of the outlet of gas-solid, effectively reduce the setting height(from bottom) of cleaner at reactor.Another part solid particle is carried through the strength delivery pump with fresh solid desulfurization or denitrfying agent from fresh solid desulfurization or denitrfying agent inlet 8, mixes with flue gas in mixing chamber 3 through distributor 4 by pipeline 14, carries out desulfurization and denitration reaction.
Claims (2)
1. flue gas desulfurizing and desaltpeterizing down flow bed reactor, mainly comprise reactor body, smoke inlet, exhanst gas outlet and the gas-solid separator that is arranged on the reactor outside, it is characterized in that: described reactor body is had the gas-solid mixing chamber of distributor by portion disposed thereon, the feed bin formation that is provided with the down-comer of one or more distribution grids and is arranged on its underpart, described gas approach is arranged on the top of reactor body, described exhanst gas outlet is arranged on the side of down-comer end, this exhanst gas outlet is connected with the gas-solid separator that is arranged on the reactor body outside, and the solid material outlet of gas-solid separator is communicated with feed bin; In the bottom of feed bin the strength delivery pump is housed, this delivery pump is communicated with the gas-solid mixing chamber by pipeline, and is provided with one or more fresh liquid desulfurizing agents or denitrfying agent inlet at the upper position of down-comer.
2. according to the described a kind of flue gas desulfurizing and desaltpeterizing down flow bed reactor of claim 1, it is characterized in that: gas-solid separator adopts cyclone separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02124130 CN1201852C (en) | 2002-07-12 | 2002-07-12 | Flue gas desulfurizing and desaltpeterizing down flow bed reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02124130 CN1201852C (en) | 2002-07-12 | 2002-07-12 | Flue gas desulfurizing and desaltpeterizing down flow bed reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1467016A true CN1467016A (en) | 2004-01-14 |
| CN1201852C CN1201852C (en) | 2005-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 02124130 Expired - Fee Related CN1201852C (en) | 2002-07-12 | 2002-07-12 | Flue gas desulfurizing and desaltpeterizing down flow bed reactor |
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| CN (1) | CN1201852C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100496674C (en) * | 2007-04-30 | 2009-06-10 | 武汉凯迪电力环保有限公司 | Bilateral opposite flushing inlet wet ammonia method for flue gas desulfurizing technology and device thereof |
| CN102049319A (en) * | 2010-10-13 | 2011-05-11 | 清华大学 | Catalytic cracking regeneration process and equipment with low NOx emission |
| CN106466551A (en) * | 2015-08-14 | 2017-03-01 | 吉天师能源科技(上海)有限公司 | A kind of apparatus system being applied to flue gas and powder hybrid reaction |
| CN107224853A (en) * | 2016-03-25 | 2017-10-03 | 陈晓林 | A kind of method of riser self-loopa depriving hydrogen sulphide |
| CN108014628A (en) * | 2016-10-31 | 2018-05-11 | 中国石油化工股份有限公司 | A kind of absorber and a kind of adsorbent equipment and its application and a kind of flue gas purifying method |
| CN108043212A (en) * | 2017-12-14 | 2018-05-18 | 青岛科技大学 | A kind of technique and device of activated coke dry method combined desulfurization and denitration |
| CN108355471A (en) * | 2018-04-28 | 2018-08-03 | 武汉都市环保工程技术股份有限公司 | A kind of cross-current type parallel connection moving-bed active coke desulphurization denitration purifying column |
-
2002
- 2002-07-12 CN CN 02124130 patent/CN1201852C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100496674C (en) * | 2007-04-30 | 2009-06-10 | 武汉凯迪电力环保有限公司 | Bilateral opposite flushing inlet wet ammonia method for flue gas desulfurizing technology and device thereof |
| CN102049319A (en) * | 2010-10-13 | 2011-05-11 | 清华大学 | Catalytic cracking regeneration process and equipment with low NOx emission |
| CN102049319B (en) * | 2010-10-13 | 2013-06-12 | 清华大学 | Catalytic cracking regeneration process and equipment with low NOx emission |
| CN106466551A (en) * | 2015-08-14 | 2017-03-01 | 吉天师能源科技(上海)有限公司 | A kind of apparatus system being applied to flue gas and powder hybrid reaction |
| CN106466551B (en) * | 2015-08-14 | 2019-06-25 | 吉天师能源科技(上海)有限公司 | A kind of apparatus system suitable for flue gas and powder hybrid reaction |
| CN107224853A (en) * | 2016-03-25 | 2017-10-03 | 陈晓林 | A kind of method of riser self-loopa depriving hydrogen sulphide |
| CN108014628A (en) * | 2016-10-31 | 2018-05-11 | 中国石油化工股份有限公司 | A kind of absorber and a kind of adsorbent equipment and its application and a kind of flue gas purifying method |
| CN108014628B (en) * | 2016-10-31 | 2019-12-27 | 中国石油化工股份有限公司 | Adsorber, adsorption device and application thereof, and flue gas purification method |
| CN108043212A (en) * | 2017-12-14 | 2018-05-18 | 青岛科技大学 | A kind of technique and device of activated coke dry method combined desulfurization and denitration |
| CN108355471A (en) * | 2018-04-28 | 2018-08-03 | 武汉都市环保工程技术股份有限公司 | A kind of cross-current type parallel connection moving-bed active coke desulphurization denitration purifying column |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1201852C (en) | 2005-05-18 |
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