CN115400875A - Inverted E-shaped ultrafine particle coagulation box - Google Patents
Inverted E-shaped ultrafine particle coagulation box Download PDFInfo
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- CN115400875A CN115400875A CN202211125336.1A CN202211125336A CN115400875A CN 115400875 A CN115400875 A CN 115400875A CN 202211125336 A CN202211125336 A CN 202211125336A CN 115400875 A CN115400875 A CN 115400875A
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- coalescence
- transverse
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- dust collector
- box
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/019—Post-treatment of gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
- B03C3/0175—Amassing particles by electric fields, e.g. agglomeration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrostatic Separation (AREA)
- Treating Waste 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 to 5 groups of transverse strips are arranged in the condensation area, the transverse strips are transversely arranged in the condensation area, and the cross section of each transverse strip is in an inverted E shape; the gas outlet is positioned at the lower part of the condensation area and above the ash bucket and is arranged into an overflowing channel, and the smoke after condensation 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 an inverted E-shaped ultrafine particle coalescence box.
Background
PM in urban environment 2.5 (mainly PM) 0.4-1.0 ) Too high a content is a major cause of haze weather. Therefore, how to control PM 2.5 The 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 device is characterized in that an electric bag composite dust collector adopting the existing two-stage filtration mode is improved, a turbulent flow vortex mechanism is arranged between an outlet of a filter bag dust removal mechanism and an inlet of an induced draft fan, and the turbulent flow vortex mechanism comprises a turbulent flow vortex chamber, a smoke inlet pipe and a smoke outlet pipe. 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 102423599A discloses an electric bag composite purification device and a 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 disadvantages 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 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 invention aims to: 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 to 5 groups of transverse strips are arranged in the condensation area, the transverse strips are transversely arranged in the condensation area, and the cross section of each transverse strip is in an inverted E 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 coagulation area are arranged up and down; the height of the transverse strip is 10 to 25cm; the distance between two adjacent transverse strips is 1.0 to 2.0 times of the height of the transverse strip; the distance between two adjacent groups of transverse bars is 1.0 to 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, at the moment, the flue gas contains more ultrafine particles, and the ultrafine particles are collided and coagulated under the action of turbulent coagulation to become 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 integral 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, multiple coagulation synergistic effects are realized, and the coagulation efficiency is improved.
(2) The coagulation box provided by the invention can obviously reduce PM 2.5 Is discharged. 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.
(3) Each part of the coalescence box provided by the invention is reasonable in partition and compatible and matched in function.
Drawings
FIG. 1 is a schematic view of an inverted E-shaped ultrafine particle coalescence box according to the present invention.
In fig. 1: 1: electric dust remover, 2: bag house dust collector, 3: coagulation box, 4: air inlet, 5: condensation zone, 6: gas outlet, 7: ash bucket, 8: and (4) transverse strips.
Detailed Description
The invention is further elucidated with reference to the drawings and the embodiments.
Example 1
Certain industrial smoke and exhaust gas, treatment capacityIs 120000m 3 And/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 an inverted E 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 the transverse strips arranged in the coagulation area is arranged up and down; the height of the horizontal bar is 15cm; 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/Nm 3 ， PM 2.5 The removal rate is improved by 60 percent.
Claims (2)
1. An inverted E-shaped ultrafine particle coalescence box is characterized in that: the whole coalescence tank is in a box shape 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 to 5 groups of transverse strips are arranged in the condensation area, the transverse strips are transversely arranged in the condensation area, and the cross section of each transverse strip is in an inverted E 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 zone 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 area are arranged up and down, and the height of each transverse bar is 10 to 25cm; the distance between two adjacent transverse bars is 1.0 to 2.0 times of the height of the transverse bar; the distance between two adjacent groups of transverse bars is 1.0 to 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 |
|---|---|---|---|
| CN202211125336.1A CN115400875A (en) | 2022-09-16 | 2022-09-16 | Inverted E-shaped ultrafine particle coagulation box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211125336.1A CN115400875A (en) | 2022-09-16 | 2022-09-16 | Inverted E-shaped ultrafine particle coagulation box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115400875A true CN115400875A (en) | 2022-11-29 |
Family
ID=84166724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211125336.1A Pending CN115400875A (en) | 2022-09-16 | 2022-09-16 | Inverted E-shaped ultrafine particle coagulation box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115400875A (en) |
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2022
- 2022-09-16 CN CN202211125336.1A patent/CN115400875A/en active Pending
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