CN103909013A - Kiln tail electric dust collection method - Google Patents
Kiln tail electric dust collection method Download PDFInfo
- Publication number
- CN103909013A CN103909013A CN201410129160.6A CN201410129160A CN103909013A CN 103909013 A CN103909013 A CN 103909013A CN 201410129160 A CN201410129160 A CN 201410129160A CN 103909013 A CN103909013 A CN 103909013A
- Authority
- CN
- China
- Prior art keywords
- electric field
- electric
- dust
- charged
- dust collection
- 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.)
- Pending
Links
Abstract
The invention discloses a kiln tail electric dust collection method which comprises the following steps: 1. arranging a pre-charge coagulation electric field in an inlet horn of an electric dust collector; 2. synchronously carrying out air flow uniform distribution and dust pre-charge so that the inlet horn has a dust collection action; 3. adding a charge grid in front of and behind of each electric field by using a cathode large frame; 4. arranging a transverse charge grid in front of the electric field by using the cathode large frame so that the driven direction of the pre-charged dust is the same as the airflow direction; 5. arranging a transverse charge grid on the cathode large frame at the back end of the electric field; 6. adding an auxiliary electrode between the end electric field cathode wires of the electric dust collector; and 7. adding an auxiliary electrode in the discharge region of the end electric field of the electric dust collector. The method overcomes the defects in the prior art, enhances the dust collection efficiency of the electric dust collector, and can solve the problem of catching fine dust in the existing electric dust collector on the premise of not increasing the number of electric fields for electric dust collection or changing the original operating mode and parameters.
Description
Technical field
The present invention relates to dedusting technology field, specifically belong to kiln tail electro dust removing method.
Background technology
Existing deduster overcomes the difficult trapping of high resistivity dust and reentrainment of dust difficulty, drops into after kiln tail SP waste heat boiler, and the kiln tail electric cleaner of conventional design is difficult to reach below 30mg/m3.Helplessly only take, electricity consumption changes bag or the combination of electricity bag is reduced tens milligrams so that electric cleaner finally can not up to standardly differ, but pay a high price for, and sack cleaner is in fact also by increasing filter area, lowering flow velocity and expand investment, the filtrate of import costliness is cost, because sack cleaner reduction of discharging is not energy-conservation, resistance is large, energy consumption is high and the short maintenance cost of life-span of the filter bag is high, also has a lot of problems.
Summary of the invention
The object of this invention is to provide kiln tail electro dust removing method, the deficiencies in the prior art are overcome, adopt charged coalescence effect higher than the conventional electric-field charge coalescence of current electric cleaner level, actual have very high efficiency of dust collection to electric cleaner, realization is not increased to electric precipitation electric field number, do not change the problem that solves existing electric cleaner trapping fine dust under original method of operation and Parameter Conditions.
The technical solution used in the present invention is as follows:
Kiln tail electro dust removing method, the first step arranges pre-charged cohesion electric field in electric cleaner entrance loudspeaker;
Second step, airflow uniform distribution and dust in advance charged synchronizeing carry out, and make import loudspeaker play the effect of pre-dedusting;
The 3rd step, utilizes negative electrode big frame before and after each electric field, to set up charged net;
The 4th step, utilizes negative electrode big frame before electric field, to arrange together horizontal charged net, and driving into direction after making dust charged is in advance relative with airflow direction consistent;
The 5th step, the same horizontal charged net together that arranges on the negative electrode big frame of electric field rear end;
The 6th step is set up auxiliary electrode between the electric field cathode line of electric cleaner end;
The 7th step, at electric cleaner end, electric field region of discharge is set up auxiliary electrode.
Compared with the prior art, beneficial effect of the present invention is as follows:
The present invention adopts charged coalescence effect higher than the conventional electric-field charge coalescence of current electric cleaner level, actual have very high efficiency of dust collection to electric cleaner, realization is not increased to electric precipitation electric field number, do not change the problem that solves existing electric cleaner trapping fine dust under original method of operation and Parameter Conditions.
Detailed description of the invention
Kiln tail electro dust removing method, the first step arranges pre-charged cohesion electric field in electric cleaner entrance loudspeaker;
Second step, airflow uniform distribution and dust in advance charged synchronizeing carry out, and make import loudspeaker play the effect of pre-dedusting; Be equivalent to extend electric field length.Application in practice shows, its charged coalescence effect is higher than the conventional electric-field charge coalescence of electric cleaner level at present, and actual have very high efficiency of dust collection to electric cleaner.Realization is not increased to electric precipitation electric field number, do not change the problem that solves existing electric cleaner trapping fine dust under original method of operation and Parameter Conditions.
The 3rd step, utilizes negative electrode big frame before and after each electric field, to set up charged net; Utilize negative electrode big frame before electric field, to arrange together horizontal charged net, driving into direction after making dust charged is in advance relative with airflow direction consistent.Greatly increase charged particle kinetic energy, can make ion effectively overcome the constraint of electric field, and then improved ion transport rate, can make current flue dust migration velocity bring up to 10～20cm/s from 5～9cm/s.
The same horizontal charged net together that arranges on the negative electrode big frame of electric field rear end, mainly contains two effects: the one, and the reentrainment of dust that trapping causes because of rapping; Two make that the dust secondary of escaping is charged, coalescence again.
The 4th step, utilizes negative electrode big frame before electric field, to arrange together horizontal charged net, and driving into direction after making dust charged is in advance relative with airflow direction consistent;
The 5th step, the same horizontal charged net together that arranges on the negative electrode big frame of electric field rear end;
The 6th step is set up auxiliary electrode between the electric field cathode line of electric cleaner end;
The 7th step, at electric cleaner end, electric field region of discharge is set up auxiliary electrode, and at electric cleaner end, electric field region of discharge is set up auxiliary electrode.So-called auxiliary electrode, refers to that itself does not produce corona, only between auxiliary electrode and anode, produces uniform highfield.Because auxiliary electrode does not produce corona, can only be the discharge current of Charged at auxiliary electrode and anode so this region produces electrogenesis stream, be very little, this just can effectively prevent the high back corona phenomenon producing at anode than electric cloudy dust.According to electric field theory, under the identical condition of voltage, the field intensity of uniform electric field is more much bigger than the field intensity of non-uniform electric field, and this just can effectively improve the migration velocity of Charged, and the probability of the Charged of uniform electric field seizure simultaneously is also far longer than non-uniform electric field.Make the electric field electric discharge dust collection effect that is provided with auxiliary electrode will significantly be greater than the conventional electric cleaner using at present, dust collection efficiency is had to qualitative leap.
Claims (1)
1. kiln tail electro dust removing method, is characterized in that: the first step arranges pre-charged cohesion electric field in electric cleaner entrance loudspeaker;
Second step, airflow uniform distribution and dust in advance charged synchronizeing carry out, and make import loudspeaker play the effect of pre-dedusting;
The 3rd step, utilizes negative electrode big frame before and after each electric field, to set up charged net;
The 4th step, utilizes negative electrode big frame before electric field, to arrange together horizontal charged net, and driving into direction after making dust charged is in advance relative with airflow direction consistent;
The 5th step, the same horizontal charged net together that arranges on the negative electrode big frame of electric field rear end;
The 6th step is set up auxiliary electrode between the electric field cathode line of electric cleaner end;
The 7th step, at electric cleaner end, electric field region of discharge is set up auxiliary electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410129160.6A CN103909013A (en) | 2014-04-01 | 2014-04-01 | Kiln tail electric dust collection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410129160.6A CN103909013A (en) | 2014-04-01 | 2014-04-01 | Kiln tail electric dust collection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103909013A true CN103909013A (en) | 2014-07-09 |
Family
ID=51035196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410129160.6A Pending CN103909013A (en) | 2014-04-01 | 2014-04-01 | Kiln tail electric dust collection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103909013A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106540805A (en) * | 2016-12-29 | 2017-03-29 | 天津钢铁集团有限公司 | A kind of electric dust removing system improved structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2008099C1 (en) * | 1991-10-29 | 1994-02-28 | Геннадий Александрович Кирпичников | Gas-cleaning electrostatic precipitator |
| CN2170802Y (en) * | 1993-02-10 | 1994-07-06 | 武汉工业大学 | Hole type electric field of electric dust remover |
| CN2502792Y (en) * | 2001-09-28 | 2002-07-31 | 高香林 | Windbreak auxillary electrode |
| CN2628146Y (en) * | 2003-06-19 | 2004-07-28 | 西安理工大学 | Electric dust separator |
| CN2770786Y (en) * | 2004-03-04 | 2006-04-12 | 何保海 | Auxiliary electrode for electric dust collector |
| CN201079750Y (en) * | 2007-08-29 | 2008-07-02 | 于力 | Electric dust collector with wide distance electric field |
| CN201316673Y (en) * | 2008-09-29 | 2009-09-30 | 兰州电力修造厂 | Pre-charging device of electric duster |
| CN103657855A (en) * | 2013-11-13 | 2014-03-26 | 李文 | Energy-efficient electrostatic dust collector |
-
2014
- 2014-04-01 CN CN201410129160.6A patent/CN103909013A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2008099C1 (en) * | 1991-10-29 | 1994-02-28 | Геннадий Александрович Кирпичников | Gas-cleaning electrostatic precipitator |
| CN2170802Y (en) * | 1993-02-10 | 1994-07-06 | 武汉工业大学 | Hole type electric field of electric dust remover |
| CN2502792Y (en) * | 2001-09-28 | 2002-07-31 | 高香林 | Windbreak auxillary electrode |
| CN2628146Y (en) * | 2003-06-19 | 2004-07-28 | 西安理工大学 | Electric dust separator |
| CN2770786Y (en) * | 2004-03-04 | 2006-04-12 | 何保海 | Auxiliary electrode for electric dust collector |
| CN201079750Y (en) * | 2007-08-29 | 2008-07-02 | 于力 | Electric dust collector with wide distance electric field |
| CN201316673Y (en) * | 2008-09-29 | 2009-09-30 | 兰州电力修造厂 | Pre-charging device of electric duster |
| CN103657855A (en) * | 2013-11-13 | 2014-03-26 | 李文 | Energy-efficient electrostatic dust collector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106540805A (en) * | 2016-12-29 | 2017-03-29 | 天津钢铁集团有限公司 | A kind of electric dust removing system improved structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204220297U (en) | A kind of wet cottrell | |
| WO2016029333A1 (en) | Embedded-type electrified bag composite dust collector | |
| CN202410839U (en) | Electrostatic dust collector | |
| CN103447153A (en) | Electronic dust remover | |
| CN102836779B (en) | A kind of minimizing technology of fine particle and device | |
| CN202006137U (en) | Ultrafine dust electrocoagulation device | |
| CN103623669A (en) | Electric-bag composite dust collector | |
| CN205462739U (en) | Pipe electrostatic precipitators | |
| CN205966179U (en) | Formula of flow equalizing electrostatic precipitator | |
| CN104785372A (en) | Dust collection electrode back-flushing filtering electrostatic precipitator | |
| CN102553721B (en) | Electrostatic precipitator and step by step vibration dust-cleaning method | |
| CN206500262U (en) | A kind of bipolar power supply high-efficiency electric dust catcher of combined type | |
| CN107008095A (en) | A kind of coagulation and enhanced type electric-bag complex dust collector | |
| CN201399382Y (en) | Small cathode frame for electrostatic precipitator | |
| CN202238313U (en) | Electric bag composite dust catcher | |
| CN106423558A (en) | Cross power supply coagulation-type ultra-low emission electric dust remover | |
| CN203577563U (en) | Electric-bag compound dust remover | |
| CN203220969U (en) | Electric dust collector with reticular mobile dust collecting electrode | |
| CN206027925U (en) | Compound minimum discharge electrostatic precipitator | |
| CN103909013A (en) | Kiln tail electric dust collection method | |
| CN202387346U (en) | Lenticular electric bag compound dust remover | |
| CN202387558U (en) | Dual flow velocity high-efficiency electrostatic precipitator | |
| CN202751926U (en) | Tandem type static sack composite dust remover | |
| CN205815924U (en) | A kind of multipole combo box-like inversion high-efficiency electric dust catcher | |
| CN211887406U (en) | Electric dust remover with dust collection filter tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140709 |