CN102949898A - Ultrashort-flow technique for industrial dust removal - Google Patents
Ultrashort-flow technique for industrial dust removal Download PDFInfo
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- CN102949898A CN102949898A CN2011102518045A CN201110251804A CN102949898A CN 102949898 A CN102949898 A CN 102949898A CN 2011102518045 A CN2011102518045 A CN 2011102518045A CN 201110251804 A CN201110251804 A CN 201110251804A CN 102949898 A CN102949898 A CN 102949898A
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- dust
- ash
- dust removal
- ultrashort
- unit
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- 239000000428 dust Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000004140 cleaning Methods 0.000 claims abstract description 20
- 239000000779 smoke Substances 0.000 claims abstract description 9
- 238000000746 purification Methods 0.000 claims abstract description 6
- 238000005453 pelletization Methods 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 12
- 230000001939 inductive effect Effects 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 9
- 239000003546 flue gas Substances 0.000 claims description 7
- 239000003517 fume Substances 0.000 claims description 7
- 241001438449 Silo Species 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 6
- 230000003584 silencer Effects 0.000 claims description 5
- 230000001429 stepping Effects 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004904 shortening Methods 0.000 abstract 1
- 230000003247 decreasing Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
Abstract
The invention relates to an ultrashort process technique for industrial dust removal, belonging to a technique method of an industrial dust removal system. According to the process route, under the negative pressure action of a dust removal system, smoke passes through a dust collecting cover 1, a smoke pipe 2 and a large integrated dust removal unit 3 in sequence, so that all functions of a conventional dust removal system, such as smoke collecting and purification, noise treatment and separated emission of clean gas and dust, can be realized with an ultrashort flow. Through optimizing and simplifying the process procedures of the conventional dust removal system, the technique has the beneficial effects of greatly shortening the process flow, further reducing resistance, energy consumption and noise of the dust removal system, lowering the occupied area, solving the dust flying problem in ash discharge and ensuring reliable running of the system and low maintenance workload.
Description
Technical field
The ultrashort flow process of industrial dedusting belongs to the industrial fumes method for governing pollution, relates to the dedusting technology field.
Background technology
Existing large scale industry dust pelletizing system (is processed air quantity at 100,000m
3More than/the h) technological process mainly be: flue gas enters deduster 4 through flue 2 after the cover 1 that is captured captures and purifies under the suction function of dust pelletizing system; Purified gas enters at last aiutage 9 and enters atmosphere by fan wind inleting tube road 5, blower fan 6, blower fan wind pipe 7, silencer 8; The dust of collecting is delivered to by unloading valve 10, one or more levels conveyer 11 and concentrates ash silo 12, is discharged into haulage vehicle by ash-discharging device 13 again.Whole dust pelletizing system long flow path, resistance is high, process procedure is many, has many drawbacks such as corollary equipment is many, floor space is large, energy consumption is high.
Summary of the invention
The present invention is mainly by carrying out integrated to conventional dust pelletizing system technique internal structure combination, the integrated dust removing technique unit, reduce unnecessary pipe network and affiliated facility, reduce SR, reduce equipment investment, flow process simplifies the operation, process air quantity, efficiency of dust collection and system operation reliability thereby reach the raising system, reduce the purpose of energy consumption.
Aspect the capture of flue gas, purification, discharging, the design of technical solution of the present invention is mainly based on the hydrodynamics formula:
ΔP＝1/2ρv
2[∑(λ/D)L+∑ξi]
Δ P in the formula: the Pa of unit is decreased in system's resistance;
ρ: gas density, units/kg/m
3
V: air velocity, the m/s of unit;
λ: coefficient of frictional resistance;
D: pipe diameter, the mm of unit;
L: duct length, the mm of unit;
∑ ξ i: coefficient of partial resistance algebraical sum.
Be not difficult to find out from above hydrodynamics formula, in the numerous key elements that consist of dust pelletizing system resistance damage, the coefficient of partial resistance ∑ ξ i that the length L of gas flow rate v, pipeline and change of shape thereof cause is three large important factor in order.
Analyze from the constitutive requirements of whole conventional dust pelletizing system technique, fume trap cover often is subjected to the restriction of site space layout to the pipeline of deduster, duct length L often arranges according to the concrete condition of dirt source point, is difficult to shorten, and can only carry out the optimal design of fume trap cover and pipe network.And in conventional dust pelletizing system, being exported to fan outlet one segment process link from deduster all is high flow rate, high dynamic pressure zone, and the shape of deduster outlet conduit, blower fan inlet pipeline, fan outlet pipeline, noise damping channel, aiutage passage is not identical, when high velocity air passed through these special-shaped pipelines, the sudden expansion of its structure, sudden contraction part had caused coefficient of partial resistance ξ very large.The high dynamic pressure in this section zone, high coefficient of partial resistance, long flow process are all so that the resistance of this section system is decreased very high.Under normal conditions, the deduster system resistance that is exported to the aiutage section is decreased and will be accounted for system and always hinder 50～70% of damage.
The present invention by taking the measures such as innovative design, integrated equipment to come as much as possible shortened process to conventional deduster to this segment process of aiutage, reduces SR, thereby effectively reduces energy consumption just.
Technical scheme of the present invention is as follows:
Specified conditions according to the industrial smoke of required improvement, configuration fume trap cover 1 and large-scale integration dust-removing unit 3, and with flue 2 with above-mentioned both connect, thereby consist of have flue gas trapping, the ultrashort flow process dust pelletizing system of the repertoires such as respectively discharging of purification, noise abatement and clean air and dust.
Wherein, large-scale integration dust-removing unit 3 integrates air inducing exhaust, gas cleaning, three technique units of storage ash discharge, substitute deduster 4, blower fan 6 and concentrated ash silo 12 in the conventional dust pelletizing system, saved the process procedures such as fan wind inleting tube road 5, blower fan wind pipe 7, silencer 8, aiutage 9, unloading valve 10, one or more levels conveyer 11, concentrated ash silo 12.
After industrial smoke enters large-scale integration dust-removing unit 3, at first carry out filtration, purification by the 14 pairs of flue gases in gas cleaning unit, realize that gas, dirt separate, clean air enters air inducing exhaust unit 16, and dust falls into storage ash discharge unit 18.Gas cleaning unit 14 adopts stepping off-line rotary pulse deashing mechanism 17, and the off-line blowing device is arranged symmetrically with take the slew gear center as mid point, rotates accurately contraposition by the servo system control slew gear, successively all filter bags 15 is turned round the off-line winding-up.
Clean air after gas cleaning unit 14 purifies directly enters air inducing exhaust unit 16.The air inducing mode of air inducing exhaust unit 16 is associated mode, and gas cleaning unit 14 directly links with air inducing exhaust unit 16, does not contain any pipeline therebetween; Its exhaust mode is straight-line, and clean air directly enters atmosphere.Also install deadener additional at air inducing exhaust unit 16 and carried out noise abatement.So, just fan wind inleting tube road 5, blower fan wind pipe 7, silencer 8, the aiutage 9 of the high dynamic pressure in the conventional dust pelletizing system technique, high coefficient of partial resistance have been saved, shortened system flow, optimized system process, the resistance that greatly reduces whole dust pelletizing system is decreased.
Gas cleaning unit 14 filters the dust of collecting and falls into storage ash discharge unit 18.Storage ash discharge large ash bucket of unit 18 usefulness and replace equipment such as a plurality of ash buckets, one or more levels conveyer (11), concentrated ash silo (12) in the conventional dust pelletizing system without airborne dust ash discharging mechanism 19, for providing, whole system unloads grey function, and the reentrainment of dust during the establishment ash discharge.
Whole technological process of the present invention is as follows:
Industrial smoke is under the suction function of dust pelletizing system, the cover 1 that is captured is collected, enter integration dust-removing unit 3 by pipeline 2, carry out gas, dirt separation in gas cleaning unit 14 by filter bag 15, the clean air after the filtration directly enters atmosphere behind air inducing exhaust unit 16.Be gathered in the dust in filter bag 15 outsides under the high pressure off-line winding-up effect of stepping off-line rotary pulse deashing mechanism 17, fall into storage ash discharge unit 18, transport by being discharged into haulage vehicle without airborne dust ash discharging mechanism 19.
Compare with conventional dust pelletizing system technique, major advantage of the present invention is: the optimization by above-mentioned process procedure and simplifying, realized the ultrashort flow process of dust pelletizing system.The advantages such as the present invention has that resistance is low, energy consumption and noise are low, and floor space is little, and is without airborne dust, reliable when unloading ash, and maintenance workload is few.
Description of drawings
Fig. 1 is conventional dust pelletizing system technique.
Fig. 2 is the present invention.
Fig. 1 and digital number meaning shown in Figure 2 are as follows:
A: flue gas flow direction; B: pure qi (oxygen) flows to; C: unload grey direction.
1: fume trap cover; 2: flue; 3: large-scale integration dust-removing unit;
4: deduster; 5: the fan wind inleting tube road; 6: blower fan;
7: the blower fan wind pipe; 8: silencer; 9: aiutage;
10: unloading valve; 11: conveyer; 12: concentrate ash silo;
13: ash-discharging device; 14: the gas cleaning unit; 15: filter bag;
16: the air inducing exhaust unit; 17: stepping off-line rotary pulse deashing mechanism;
18: storage ash discharge unit; 19: without the airborne dust ash discharging mechanism.
The specific embodiment
Below, specify enforcement of the present invention in conjunction with Fig. 2:
The ultrashort flow process of industrial dedusting is comprised of fume trap cover 1, flue 2 and large-scale integration dust-removing unit 3, realize existing industrial dedusting system flue gas trapping, purification, noise abatement and clean air discharging and dust without repertoires such as airborne dust ash discharges.Industrial smoke is under the suction function of dust pelletizing system, the cover 1 that is captured is collected, and enters integration dust-removing unit 3 by pipeline 2, carries out gas, dirt separation in gas cleaning unit 14 by filter bag 15, clean air after the filtration directly enters atmosphere under the suction function of air inducing exhaust unit 16.Be gathered in the dust in filter bag 15 outsides under the high pressure off-line winding-up effect of off-line rotary pulse deashing mechanism 17, fall into storage ash discharge unit 18, transport by being discharged into haulage vehicle without airborne dust ash discharging mechanism 19.
Claims (6)
1. ultrashort flow process of industrial dedusting, it is characterized in that: the ultrashort flow process dust pelletizing system that is formed by fume trap cover (1), flue (2), large-scale integration dust-removing unit (3), realize existing industrial dedusting system flue gas trapping, purification, noise abatement and clean air discharging and dust without repertoires such as airborne dust ash discharges.
2. the ultrashort flow process of industrial dedusting according to claim 1, it is characterized in that: industrial smoke is after the gas cleaning unit (14) of large-scale integration dust-removing unit (3) purifies, directly enter its air inducing exhaust unit (16), do not contain any pipeline therebetween.
3. the ultrashort flow process of industrial dedusting according to claim 1, it is characterized in that: industrial smoke directly enters atmosphere through the air inducing exhaust unit (16) of large-scale integration dust-removing unit (3), does not contain the process procedures such as fan wind inleting tube road (5), blower fan wind pipe (7), silencer (8), aiutage (9) therebetween.
4. the ultrashort flow process of industrial dedusting according to claim 1, it is characterized in that: the storage ash discharge unit (18) of large-scale integration dust-removing unit (3) has substituted conventional a plurality of ash buckets, unloading valve (10), one or more levels conveyer (11), has concentrated the storage ash of the equipment such as ash silo (12), ash-discharging device (13), defeated grey function, and adopt without airborne dust ash discharging mechanism (19) and implement to unload ash, the reentrainment of dust during the establishment ash discharge.
5. the ultrashort flow process of industrial dedusting according to claim 1, it is characterized in that: the gas cleaning unit (14) of integration dust-removing unit (3) adopts stepping off-line rotary pulse deashing mechanism (17), successively all filter bags (15) is turned round the off-line winding-up.
6. stepping off-line rotary pulse deashing mechanism according to claim 5 (17), it is characterized in that: the off-line blowing device is arranged symmetrically with take the slew gear center as mid point; Adopt the servo system control slew gear to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102518045A CN102949898A (en) | 2011-08-30 | 2011-08-30 | Ultrashort-flow technique for industrial dust removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102518045A CN102949898A (en) | 2011-08-30 | 2011-08-30 | Ultrashort-flow technique for industrial dust removal |
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| Publication Number | Publication Date |
|---|---|
| CN102949898A true CN102949898A (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102518045A Pending CN102949898A (en) | 2011-08-30 | 2011-08-30 | Ultrashort-flow technique for industrial dust removal |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2285675Y (en) * | 1996-11-29 | 1998-07-08 | 国家建筑材料工业局合肥水泥研究设计院 | Fractional rotary bag dust-collector |
| CN2310266Y (en) * | 1997-08-29 | 1999-03-10 | 龙步云 | Rotary reverse blowing dust remover |
| CN2780297Y (en) * | 2005-03-14 | 2006-05-17 | 无锡市东方工业环保有限公司 | Off-line rotating pulse ash removing bag tyre dust separator |
| CN201244414Y (en) * | 2008-07-09 | 2009-05-27 | 无锡市东方工业环保有限公司 | Integration bag type dust-removing device |
-
2011
- 2011-08-30 CN CN2011102518045A patent/CN102949898A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2285675Y (en) * | 1996-11-29 | 1998-07-08 | 国家建筑材料工业局合肥水泥研究设计院 | Fractional rotary bag dust-collector |
| CN2310266Y (en) * | 1997-08-29 | 1999-03-10 | 龙步云 | Rotary reverse blowing dust remover |
| CN2780297Y (en) * | 2005-03-14 | 2006-05-17 | 无锡市东方工业环保有限公司 | Off-line rotating pulse ash removing bag tyre dust separator |
| CN201244414Y (en) * | 2008-07-09 | 2009-05-27 | 无锡市东方工业环保有限公司 | Integration bag type dust-removing device |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 2020 No. 214125 Jiangsu city of Wuxi Province Li Lake Avenue Applicant after: Wuxi Dongfang Industrial Environmental Protection Co., Ltd. Address before: 2020 No. 214125 Jiangsu city of Wuxi Province Li Lake Avenue Applicant before: Wuxi Dongfang Industrial Environmental Protection Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: DONGFANG INDUSTRY ENVIRONMENT PROTECTION CO., LTD., WUXI CITY TO: WUXI DONGFANG INDUSTRIAL ENVIRONMENTAL PROTECTION CO., LTD. |
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Application publication date: 20130306 |