CN111871139A - Rhombus superfine particle coalescence box - Google Patents
Rhombus superfine particle coalescence box Download PDFInfo
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- CN111871139A CN111871139A CN202010792408.2A CN202010792408A CN111871139A CN 111871139 A CN111871139 A CN 111871139A CN 202010792408 A CN202010792408 A CN 202010792408A CN 111871139 A CN111871139 A CN 111871139A
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- coalescence
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- dust collector
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- 238000004581 coalescence Methods 0.000 title claims abstract description 31
- 239000002245 particle Substances 0.000 title claims description 10
- 239000000428 dust Substances 0.000 claims abstract description 52
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003546 flue gas Substances 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 5
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 4
- 239000010432 diamond Substances 0.000 claims abstract description 4
- 230000015271 coagulation Effects 0.000 abstract description 32
- 238000005345 coagulation Methods 0.000 abstract description 32
- 239000011882 ultra-fine particle Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 9
- 239000000779 smoke Substances 0.000 description 8
- 239000010419 fine particle Substances 0.000 description 7
- 239000003463 adsorbent Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000002594 sorbent Substances 0.000 description 3
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D51/00—Auxiliary pretreatment of gases or vapours to be cleaned
- B01D51/02—Amassing the particles, e.g. by flocculation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The whole coagulation box is in a box shape and is suitable for being arranged between electric-bag dust collectors; the coalescence box consists of an air inlet, an air outlet, a coalescence area and an ash bucket; the air inlet is a passage behind the electric dust collector, and the flue gas is generated by the electric dust collector; 2-4 groups of transverse strips are arranged in the coagulation area, the transverse strips are transversely arranged in the coagulation area, and the cross section of each transverse strip is in a diamond shape; the gas outlet is positioned at the lower part of the coalescence area and above the ash bucket and is arranged into a flow passage, and the coalesced flue gas enters the bag type dust collector for treatment. The invention has strong pertinence, wide application range, optimized structure and good reliability.
Description
Technical Field
The invention belongs to the field of flue gas dust removal treatment, and relates to a diamond-shaped ultrafine particle coalescence box.
Background
In recent years, haze weather of big and medium-sized cities in China is more and more, and healthy work and life of urban residents are seriously influenced, wherein PM in urban environment2.5(mainly PM)0.4-1.0) Too high a content is a major cause of haze weather. Therefore, how to control PM2.5The generation and the reduction of the existence of the traditional Chinese medicine are problems to be solved urgently.
Chinese patent CN101664623A discloses a fine particle dust collector for industrial smoke dust treatment. The improved electrostatic fabric filter bag dust remover has improved two-stage filtering mode, and turbulent vortex mechanism comprising turbulent vortex chamber, fume inlet pipe and fume outlet pipe is set between the outlet of the filter bag dust removing mechanism and the inlet of the induced draft fan. The turbulent vortex chamber is in a hopper shape with the cross section of an inverted isosceles trapezoid, and the bottom of the turbulent vortex chamber is connected with the ash hopper chamber. The smoke dust containing the fine particles after the second-stage treatment enters a smoke dust inlet pipe, the airflow is deflected downwards through the air deflector and enters the turbulent flow vortex chamber, and the fine particles and the inner wall of the turbulent flow vortex chamber diffuse and collide to promote the fine particles to precipitate, so that the fine particles are separated from the smoke dust. However, in the treatment process, the turbulent vortex chamber is used for physical and chemical coagulation of fine particles, and the coagulation efficiency is not high.
Chinese patent CN 102423599 a discloses an electric-bag composite purification device and purification method for integrally removing industrial discharged superfine and micro-pollutants. The integrated electric bag composite purification device and the purification method have the advantages that the structure form that the adsorbent pre-spraying device, the electrostatic dust removal device, the ultrafine particle coagulation device, the adsorbent spraying device and the cloth bag dust removal device are sequentially arranged along the airflow direction is adopted, and the integrated electric bag composite purification device and the purification method are compact in structure, low in operation cost, convenient to overhaul and operate and maintain, and capable of efficiently removing ultrafine and trace pollutants while removing constant dust pollutants. The ultrafine particle coagulation device is composed of a positive high-voltage discharge electrode and the like. The ultrafine particle coagulation apparatus has no specific configuration, and no good coagulation condition is formed except for charging. An electric-bag composite dust remover for controlling fine particles and removing mercury in cooperation with Chinese patent CN 103007670A relates to an industrial dust remover. The electric bag composite dust collector is provided with an electric bag transition area, and the electric bag transition area is arranged between the electric field area and the bag type dust collection area; the ash hopper is arranged at the bottom of the shell, the air purifying chamber is arranged at the top of the bag-type dust removing area, and the outlet flue is arranged at the top of the air purifying chamber and is communicated with the air purifying chamber; the adsorbent spraying device and the adsorbent container are arranged at the top of the electric bag transition region, and the discharge hole of the adsorbent container is connected with the feed inlet of the adsorbent spraying device. The sorbent can be fully mixed with the flue gas, the sorbent is more uniformly distributed, and the mercury removal effect of the sorbent is better. The electric bag transition region is provided with at least 2 groups of anode plates and discharge electrodes, and the anode plates and the discharge electrodes form an electric field channel.
The process equipment has the advantages of complex method, difficult control and operation, and high equipment investment and operation cost.
Therefore, in order to solve the problems of low coagulation efficiency, complex process equipment and the like, research and development of a coagulation enhancing ultrafine particle coagulation box based on the prior art are necessary. On the basis of the traditional dust remover, a coagulation treatment device is additionally arranged, so that ultrafine particles are coagulated into larger particles by a physical method or a physical and chemical method, and then the ultrafine particles are smoothly removed in a subsequent dust remover, which is the trend of the development of the existing dust removal technology.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to overcome the defects of the prior art and provides a coagulation-strengthening ultrafine particle coagulation box which is strong in pertinence, wide in application range, optimized in structure and good in reliability.
The technical scheme is as follows: in order to achieve the object of the present invention, the present invention adopts the following technical solutions.
The whole coagulation box is in a box shape and is suitable for being arranged between electric-bag dust collectors; the coalescence box consists of an air inlet, an air outlet, a coalescence area and an ash bucket; the air inlet is a passage behind the electric dust collector, and the flue gas is generated by the electric dust collector; 2-4 groups of transverse strips are arranged in the coagulation area, the transverse strips are transversely arranged in the coagulation area, and the cross section of each transverse strip is in a diamond shape; the gas outlet is positioned at the lower part of the merging area and above the ash bucket and is arranged as a flow passage, and the condensed flue gas enters the bag type dust collector for treatment; the ash bucket is arranged below the coagulation area and is flush with other ash buckets of the electric-bag dust collector.
Each group of transverse strips arranged in the condensation area are arranged up and down, and the rhombic opening angle of each transverse strip is 30-90 degrees; the height of the horizontal bars is 10-25 cm; the distance between two adjacent transverse strips is 1.0-2.0 times of the height of the transverse strip; the distance between two adjacent groups of transverse bars is 1.0-2.0 times of the section length of the transverse bars, and the two adjacent groups of transverse bars are arranged in a staggered mode.
The coagulation box has the working principle that: the flue gas treated by the electric dust remover enters a coagulation area, and at the moment, ultrafine particles are abundant in the flue gas, and the ultrafine particles are collided and coagulated under the action of turbulent flow coagulation, so that the ultrafine particles are changed into large particles, namely the particles are coarsened; and then enters the interior of a subsequent bag type dust collector, and the coarse particles are convenient for the dust collector to collect dust, so that the emission of ultrafine particles is reduced.
By "turbulent coalescence" is meant the formation of a near turbulent state by a particular configuration that causes a change in the flue gas flow. The main influencing factors of coalescence are particle size, particle cohesion and collision probability. Turbulence greatly increases the probability of particle collisions in the flue gas. Due to the special structure of the coalescence box, the junction of partial air flows in the coalescence box becomes a main turbulence coalescence generation area, and the overall coalescence effect is enhanced through turbulence coalescence.
Has the advantages that: the device provided by the invention has the following advantages compared with the prior device.
(1) Through the special structure provided by the invention, various coagulation synergistic effects are realized, the coagulation efficiency is improved, and the PM2.5The quantity concentration of the particles in the smoke dust is reduced by 40-60% compared with the quantity concentration before coagulation, and the mass concentration is reduced by 5-15% compared with the mass concentration before coagulation.
(2) The coagulation box provided by the invention can obviously reduce PM2.5And (4) discharging. The device provided by the invention can improve the removal efficiency of the electro-bag dust remover on the ultrafine particles and reduce the emission of ultrafine smoke dust. Under the condition of the same working state and collection mode of the dust remover, PM in the smoke dust can be collected2.5The removal rate is improved by 40% -60%.
(3) All parts of the coalescence box provided by the invention are reasonable in partition and compatible and matched in function.
Drawings
FIG. 1 is a schematic view of a rhombus ultrafine particle coalescence box structure provided by the invention.
In fig. 1: 1: an electric dust collector, 2: a bag type dust collector, 3: a coalescence box, 4: an air inlet, 5: a coalescence area, 6: gas outlet, 7: ash bucket 8, horizontal bar.
Detailed Description
The invention is further elucidated with reference to the drawings and the embodiments.
Example 1
The treatment capacity of certain industrial smoke and waste gas is 100000m3And/h, adopting the coagulation box provided by the invention. The whole coalescence tank is box-shaped and is suitable for being arranged between the electro-bag dust collectors; the coalescence box consists of an air inlet, an air outlet, a coalescence area and an ash bucket; the air inlet is a passage behind the electric dust collector, and the flue gas is generated by the electric dust collector; 4 groups of transverse strips are arranged in the coagulation area, the transverse strips are transversely arranged in the coagulation area, and the cross section of each transverse strip is in a diamond shape; the gas outlet is positioned at the lower part of the merging area and above the ash bucket and is arranged as a flow passage, and the condensed flue gas enters the bag type dust collector for treatment; the ash bucket is arranged below the coagulation area and is flush with other ash buckets of the electric-bag dust collector.
Each group of transverse strips arranged in the condensation area is arranged up and down, and the rhombic opening angle of each transverse strip is 60 degrees; the height of the horizontal bar is 15 cm; the distance between two adjacent crossbands is 1.5 times of the height of the crossbands; the distance between two adjacent groups of transverse bars is 1.5 times of the section length of the transverse bars, and the two adjacent groups of transverse bars are arranged in a staggered manner.
The coagulation box provided by the invention is adopted for carrying out enhanced coagulation, and then is connected with the bag type dust remover, the total dust removal efficiency of the whole process is over 99.98 percent, and the dust emission concentration of flue gas is less than 30mg/Nm3， PM2.5The removal rate is improved by 60 percent.
Claims (2)
1. A rhombus superfine particle coalescence box is characterized in that: the whole coalescence tank is box-shaped and is suitable for being arranged between the electro-bag dust collectors; the coalescence box consists of an air inlet, an air outlet, a coalescence area and an ash bucket; the air inlet is a channel behind the electric dust collector, and the flue gas comes from the electric dust collector; 2-4 groups of transverse strips are arranged in the coalescence area, the transverse strips are transversely arranged in the coalescence area, and the cross section of each transverse strip is in a diamond shape; the gas outlet is positioned at the lower part of the merging area and above the ash bucket and is arranged into a flow passage, and the condensed flue gas enters the bag type dust collector for treatment; the ash bucket is arranged below the coalescence area and is flush with other ash buckets of the electric-bag dust collector.
2. The coalescence box of claim 1, wherein each group of transverse bars arranged in the coalescence zone are arranged up and down, and the diamond-shaped opening angle of the transverse bars is 30-90 degrees; the height of the horizontal bars is 10-25 cm; the distance between two adjacent transverse strips is 1.0-2.0 times of the height of the transverse strip; the distance between two adjacent groups of transverse bars is 1.0-2.0 times of the section length of the transverse bars, and the two adjacent groups of transverse bars are arranged in a staggered mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010792408.2A CN111871139A (en) | 2020-08-09 | 2020-08-09 | Rhombus superfine particle coalescence box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010792408.2A CN111871139A (en) | 2020-08-09 | 2020-08-09 | Rhombus superfine particle coalescence box |
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| Publication Number | Publication Date |
|---|---|
| CN111871139A true CN111871139A (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010792408.2A Pending CN111871139A (en) | 2020-08-09 | 2020-08-09 | Rhombus superfine particle coalescence box |
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| CN (1) | CN111871139A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000167341A (en) * | 1998-12-07 | 2000-06-20 | Yaegashi Satoshi | Apparatus for removing harmful substance of waste gas or the like from combustion furnace of the like |
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| CN106621665A (en) * | 2016-12-27 | 2017-05-10 | 盐城工学院 | Combined ultrafine particle coagulation box |
| CN106693593A (en) * | 2016-12-27 | 2017-05-24 | 盐城工学院 | Double-ejection type angle type ultrafine particle coagulation tank |
| CN106693579A (en) * | 2016-12-27 | 2017-05-24 | 盐城工学院 | Transversely arranged anchored pipeline type ultrafine particle coagulation device |
| CN106693592A (en) * | 2016-12-27 | 2017-05-24 | 盐城工学院 | Double-jet type streamlined ultra-fine particle coagulation box |
| CN106731437A (en) * | 2016-12-27 | 2017-05-31 | 盐城工学院 | The horizontal anchor type ultra-fine grain coalescence case of double jet type |
| CN106731391A (en) * | 2016-12-27 | 2017-05-31 | 盐城工学院 | The horizontal Y types ultra-fine grain coalescence case of double jet type |
| CN106731434A (en) * | 2016-12-27 | 2017-05-31 | 盐城工学院 | A kind of combined ultra-fine grain coalescence case |
| CN106731435A (en) * | 2016-12-27 | 2017-05-31 | 盐城工学院 | A kind of angle-style ultra-fine grain coalescence case |
| CN106731433A (en) * | 2016-12-27 | 2017-05-31 | 盐城工学院 | A kind of novel box type coalescer |
| CN106823664A (en) * | 2016-12-27 | 2017-06-13 | 盐城工学院 | A kind of horizontal anchor type ultra-fine grain coalescence case |
-
2020
- 2020-08-09 CN CN202010792408.2A patent/CN111871139A/en active Pending
Patent Citations (14)
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|---|---|---|---|---|
| JP2000167341A (en) * | 1998-12-07 | 2000-06-20 | Yaegashi Satoshi | Apparatus for removing harmful substance of waste gas or the like from combustion furnace of the like |
| CN101157065A (en) * | 2007-02-12 | 2008-04-09 | 郑郁林 | Multifunctional electric dust collector |
| CN101745284A (en) * | 2010-01-25 | 2010-06-23 | 北京化工大学 | Ultrasonic atomizing bag type dust removing device and dust removing method |
| CN106512634A (en) * | 2016-12-27 | 2017-03-22 | 盐城工学院 | Streamline ultrafine particle coagulation box |
| CN106621665A (en) * | 2016-12-27 | 2017-05-10 | 盐城工学院 | Combined ultrafine particle coagulation box |
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| CN106693579A (en) * | 2016-12-27 | 2017-05-24 | 盐城工学院 | Transversely arranged anchored pipeline type ultrafine particle coagulation device |
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Application publication date: 20201103 |