CN117942686A - Method and device for efficiently agglomerating, drying and recycling fine particles - Google Patents
Method and device for efficiently agglomerating, drying and recycling fine particles Download PDFInfo
- Publication number
- CN117942686A CN117942686A CN202410104500.3A CN202410104500A CN117942686A CN 117942686 A CN117942686 A CN 117942686A CN 202410104500 A CN202410104500 A CN 202410104500A CN 117942686 A CN117942686 A CN 117942686A
- Authority
- CN
- China
- Prior art keywords
- filter screen
- area
- drying
- parts
- agglomerating
- 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.)
- Granted
Links
- 238000001035 drying Methods 0.000 title claims abstract description 42
- 239000010419 fine particle Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004064 recycling Methods 0.000 title claims abstract description 27
- 239000002245 particle Substances 0.000 claims abstract description 77
- 238000005096 rolling process Methods 0.000 claims abstract description 48
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 42
- 239000010935 stainless steel Substances 0.000 claims abstract description 42
- TYAVIWGEVOBWDZ-UHFFFAOYSA-K cerium(3+);phosphate Chemical compound [Ce+3].[O-]P([O-])([O-])=O TYAVIWGEVOBWDZ-UHFFFAOYSA-K 0.000 claims abstract description 22
- 229910001430 chromium ion Inorganic materials 0.000 claims abstract description 20
- 230000002776 aggregation Effects 0.000 claims abstract description 19
- 238000005054 agglomeration Methods 0.000 claims abstract description 13
- 238000005468 ion implantation Methods 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims description 54
- 239000007789 gas Substances 0.000 claims description 31
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 24
- 150000002500 ions Chemical class 0.000 claims description 18
- 238000002360 preparation method Methods 0.000 claims description 13
- 238000011084 recovery Methods 0.000 claims description 13
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 12
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000002513 implantation Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- -1 methylene phosphoric acid Chemical compound 0.000 claims description 9
- 239000002912 waste gas Substances 0.000 claims description 9
- AHEHMEDQTGXXRH-IHWYPQMZSA-N [(Z)-prop-1-enoxy]boronic acid Chemical compound C\C=C/OB(O)O AHEHMEDQTGXXRH-IHWYPQMZSA-N 0.000 claims description 8
- 239000002440 industrial waste Substances 0.000 claims description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 7
- VYLVYHXQOHJDJL-UHFFFAOYSA-K cerium trichloride Chemical compound Cl[Ce](Cl)Cl VYLVYHXQOHJDJL-UHFFFAOYSA-K 0.000 claims description 7
- 239000003344 environmental pollutant Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 7
- 231100000719 pollutant Toxicity 0.000 claims description 7
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 6
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000012935 ammoniumperoxodisulfate Substances 0.000 claims description 6
- 239000012295 chemical reaction liquid Substances 0.000 claims description 6
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 235000002906 tartaric acid Nutrition 0.000 claims description 6
- 239000011975 tartaric acid Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 2
- 239000002344 surface layer Substances 0.000 abstract description 4
- HQNHTEJTBUTVAE-UHFFFAOYSA-N cerium(3+);borate Chemical compound [Ce+3].[O-]B([O-])[O-] HQNHTEJTBUTVAE-UHFFFAOYSA-N 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 238000005728 strengthening Methods 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 9
- 238000000746 purification Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000004220 aggregation Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000013618 particulate matter Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
- B01D47/063—Spray cleaning with two or more jets impinging against each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/10—Filter screens essentially made of metal
- B01D39/12—Filter screens essentially made of metal of wire gauze; of knitted wire; of expanded metal
-
- 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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- 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
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- 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
- B01D51/04—Amassing the particles, e.g. by flocculation by seeding, e.g. by adding particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/3804—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
- C07F9/3839—Polyphosphonic acids
- C07F9/3878—Polyphosphonic acids containing substituents selected from B, Si, P (other than -PO3H2 groups) or a metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Biochemistry (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to the field of environmental protection, in particular to a method and a device for efficiently agglomerating, drying and recycling fine particles; the filter screen is a stainless steel filter screen which protrudes upwards by 30 degrees and has an aperture ratio of 0.8-0.9, and when the weight of particles in a rolling area is larger than the centripetal force, the particles fall onto the filter screen, so that the particles are not adhered, fall into a collecting area along with the radian, and are convenient to recycle; the surface of the pre-phosphorized stainless steel filter screen forms a film, contains organic cerium phosphate complex and organic cerium borate complex, and is smoothed by ion implantation of chromium ions, so that adhesion can not occur, and the surface layer generates preferred orientation; the shock wave causes the material to generate obvious plastic deformation and generates a large number of defects such as dislocation and the like, and stable network distribution is formed, thereby strengthening the stainless steel surface layer and improving the friction resistance; the invention provides a method and a structure for agglomerating and deagglomerating fine particles, which have high agglomeration efficiency, low operation cost, simplicity and high efficiency.
Description
Technical Field
The invention relates to the field of environmental protection, in particular to a method and a device for efficiently agglomerating, drying and recycling fine particles.
Background
At present, the problems of emission of a large amount of smoke pollutants exist in the processes of fossil fuel combustion, industrial production and industrial waste treatment, wherein the harm caused by fine particles (PM 2.5) with the aerodynamic diameter of less than or equal to 2.5 μm is particularly remarkable, and the problems are important and difficult for the air pollution prevention and treatment work.
Chinese patent CN113504165A: the utility model provides a be applicable to fine particles collection system in fixed source flue gas, including introducing the pipeline, PM10 particulate matter cutterbar, power supply unit, heat preservation pipeline, gaseous ring vacuum pump, PM10-PM1.0 impact instrument, silica gel drying device, mass flow controller and sample collection pump, the front end of introducing the pipeline is the flue gas sampling mouth, install the gas valve on the introducing pipeline, introducing pipeline and PM10 particulate matter cutterbar's import intercommunication, PM10 particulate matter cutterbar's export is through gaseous ring vacuum pump and PM10-PM1.0 impact instrument's import intercommunication, power supply unit is equipped with power terminal box, electric tracing line, heat preservation pipeline, carry out the electrical heating heat preservation to the pipeline in front of the impact instrument; and the outlet of the PM10-PM1.0 impact instrument is sequentially connected with a silica gel drying device, a mass flow controller and a sampling collection pump. The invention provides a system for collecting fine particles in fixed source flue gas, which is simple in structure, small in occupied area, convenient to operate and capable of improving the accuracy of sampling analysis and greatly reducing equipment investment.
Chinese patent CN110448967a: the utility model discloses a purifier for fine particulate matter treatment, which comprises an air purifier, the surface of air purifier is provided with the aviation baffle, the top of air purifier is provided with the aviation baffle, the inside top symmetry of air purifier is fixed with the lug, the outer surface symmetry of aviation baffle has seted up the spiral groove, the lug rotates with the spiral groove to be connected, the surface of aviation baffle runs through and has seted up the through-hole, the inside of through-hole is provided with the spiral cover, the bottom face of spiral cover is provided with the rubber piece; through the designed structure, when the surface of the air outlet plate is stained with dust after the air purifier is used for a long time, the air outlet plate can be conveniently and rapidly disassembled through the designed spiral cover, the protruding block, the spiral groove, the through hole, the screw hole and the screw rod, and compared with the existing mode of connecting through bolts, the air outlet plate can be more conveniently operated when being disassembled and installed.
Chinese patent CN105194960a: the integrated treatment device comprises a primary purification device and a secondary purification device, wherein the primary purification device comprises a purification tank with an opening at the upper end, a spraying device is arranged in the purification tank, a wet electric dust collector is arranged in a dust collection cavity, and a first air outlet is formed at the upper end of the dust collection cavity; the second-stage purification device comprises a purification cylinder with an opening at the upper end and a drainage gas hood, wherein the purification cylinder is filled with second absorption liquid, an inlet of the drainage gas hood is communicated with the first outlet pipeline, an opening of the drainage gas hood is arranged in the purification cylinder, and an opening of the drainage gas hood is arranged in the second absorption liquid. The device adopts the two-stage treatment ware on wet dedusting's basis, has better removal effect to PM2.5 that contains in the waste gas when handling waste gas heavy metal particulate matter to offer technical support for the establishment of the atmospheric emission standard of same class waste gas emission enterprise.
The removal effect of the traditional dust removal technology on fine particles cannot achieve the aim of low emission. Therefore, development of new dust removal techniques has been urgent.
In the agglomeration technology, the feasibility of the chemical agglomeration technology and the electric agglomeration technology is higher, the dust removal efficiency is high, the application prospect is also wider, but the technology is still in a research stage at present, and the problems of dust accumulation and secondary pollution of a dust collecting plate are further improved.
Disclosure of Invention
In order to solve the problems, the invention provides a method and a device for efficiently agglomerating, drying and recycling fine particles, and a three-stage agglomerating device consisting of a spraying system device, a turbulence-enhanced agglomerating device, a filtering and drying device, a particle recycling device and the like; the device is sequentially provided with a solution tank (1), a conveying pipeline (2), a spraying device (3), an exhaust gas inlet (4), a filter screen (5), a particle recovery area (6), a fan (7), a turbulence area (A), a spraying area (B), a rolling area (C) and a drying turbulence area (D) from left to right and from top to bottom.
The operation steps are as follows:
A1: industrial waste gas pollutants enter a turbulence area from a waste gas inlet to perform reciprocating oscillation;
A2: the reaction liquid enters a spraying device from a solution tank through a conveying pipeline, the liquid is sprayed from the spraying device in a spraying mode, small gas particles in a turbulence area are subjected to sticky agglomeration under the influence of a spraying area, larger particles are formed, and the large gas particles fall into a rolling area;
A3: the particles are influenced by turbulent flow from a fan in the rolling area, roll circularly in the rolling area, and are gathered again;
A4: the agglomerated particles can fall on the filter screen when the weight of the agglomerated particles reaches a certain degree, and the agglomerated particles roll to the particle recovery areas on two sides of the reactor along with the radian of the filter screen.
The cross section of the device is square.
The width of the turbulent flow zone is 4-6 times of the width of the inlet.
The cross section of the rolling area is circular; the included angle of the rolling area is 60 degrees; the maximum equivalent diameter of the rolling area is 2-3 times of the minimum equivalent diameter of the filter screen.
The distance between the spraying area and the turbulent flow area is 3-5 times of the width of the inlet; the height of the spraying area is 3-4 times of the minimum equivalent diameter of the filter screen.
The protruding angle of the filter screen is 30 degrees, and the aperture ratio of the stainless steel filter screen is 0.8-0.9.
The preparation method of the stainless steel filter screen comprises the following steps:
s1: immersing the stainless steel filter screen in phosphating solution for 4-7h, and drying in an oven at 120-140 ℃ for 8-12h to obtain a pre-phosphating stainless steel filter screen;
S2: placing the pre-phosphorized stainless steel filter screen into a rotary disk in an ion implanter, implanting chromium ions with ion energy of 90keV at 120-150 ℃ at the implantation rate of 516ion/cm 2 hr for 4-7h to realize chromium ion implantation of the pre-phosphorized stainless steel filter screen; the vacuum degree in the ion implanter cavity is 10-30Pa, the beam intensity of chromium ions is 10-20mA, and the spot diameter is 120-160mm.
The phosphating solution is prepared from the following raw materials in parts by weight: 30-45 parts of organic cerium phosphate complex, 100-120 parts of zinc nitrate, 20-30 parts of manganese nitrate, 3-6 parts of ammonium peroxodisulfate, 2-5 parts of thiourea, 3-6 parts of tartaric acid, 1-4 parts of ethylenediamine tetraacetic acid and 200-230 parts of water; and then mixing and stirring to obtain the phosphating solution.
The preparation method of the organic cerium phosphate complex comprises the following steps:
Weighing 20-41 parts of aminobis (methylene phosphoric acid), 0.8-1.7 parts of cis-propenyl boric acid and 30-60 parts of cerium chloride in a reaction kettle, then adding into 500-1000 parts of ethanol, reacting for 40-100 minutes at 30-40 ℃, and then adding 2-5 parts of cerium chloride
Sodium ethoxide, reacting for 20-50 minutes at 60-70 ℃, distilling to remove ethanol, and obtaining the organic cerium phosphate complex.
The preparation mechanism of the organic cerium phosphate complex:
Amino-di (methylene phosphoric acid)/cerium complex, cis-propenyl boric acid/cerium complex, and amino-propenyl addition reaction between the two to obtain organic cerium phosphate complex.
The technical effects are as follows:
Compared with the prior art, the method and the device for efficiently agglomerating, drying and recycling the fine particles have the following remarkable effects:
1. According to the invention, the movement state of the fluid in the turbulence area is regulated and controlled by the pulse speed inlet, so that the particles are driven to vibrate reciprocally in the turbulence area, and the primary coalescence and adhesion of the particles are promoted;
2. According to the invention, through the combined action of the turbulence area and the spraying area, the liquid spraying of the spraying area is more uniform while the reciprocating oscillation aggregation of particles in the flow field is ensured, the adsorption aggregation among the particles is promoted, and the secondary aggregation effect of the aggregation device is ensured;
3. the rolling area of the invention mainly has the effects that small particles after spraying and vibration aggregation fall into the rolling area to rotate back and forth under the influence of air flow, so that the full mixing among the particles is promoted, and the aggregation effect of three-level particles is enhanced;
4. The filter screen is a stainless steel filter screen which protrudes upwards by 30 degrees and has an aperture ratio of 0.8-0.9, and when the weight of particles in a rolling area is larger than the centripetal force, the particles fall onto the filter screen, so that the particles are not adhered, fall into a collecting area along with the radian, and are convenient to recycle; the surface of the pre-phosphorized stainless steel filter screen forms a film, contains organic cerium phosphate complex and organic cerium borate complex, and is smoothed by ion implantation of chromium ions, so that adhesion can not occur, and the surface layer generates preferred orientation; the shock wave causes the material to generate obvious plastic deformation and generates a large number of defects such as dislocation and the like, and stable network distribution is formed, thereby strengthening the stainless steel surface layer and improving the friction resistance;
5. the distance between the fan and the filter screen is 3-4 times of the minimum equivalent diameter of the filter screen, the reciprocating vibration and rolling turbulence of particles are promoted to a certain extent, and the particles are acted by the fan in the rolling area and in the process of falling to the filter screen, so that the drying recovery of the particles is promoted.
Description of the drawings:
FIG. 1 is a schematic diagram of a device;
FIG. 2 is a schematic view of the structure of the turbulent zone;
FIG. 3 is a schematic view of the structure of the spray zone;
FIG. 4 is a schematic diagram of the structure of a scrolling enhancement zone;
fig. 5 is a schematic diagram of the structure of the dry filtration zone.
Detailed Description
The invention is further illustrated by the following examples:
1. Fine particle removal rate = fine particle content in tail gas/fine particle content in industrial waste gas X100%
2. Friction coefficient detection: reference is made to the test method of friction coefficients of the YB/T4286-2012 metal material thin plates and thin strips.
Example 1
A method and a device for efficiently agglomerating, drying and recycling fine particles are provided, which comprises a spray system device, a turbulence-enhanced agglomerating device, a three-stage agglomerating device consisting of a filtering and drying device, a particle recycling device and the like; the device is sequentially provided with a solution tank (1), a conveying pipeline (2), a spraying device (3), an exhaust gas inlet (4), a filter screen (5), a particle recovery area (6), a fan (7), a turbulence area (A), a spraying area (B), a rolling area (C) and a drying turbulence area (D) from left to right and from top to bottom.
The operation steps are as follows:
A1: industrial waste gas pollutants enter a turbulence area from a waste gas inlet to perform reciprocating oscillation;
A2: the reaction liquid enters a spraying device from a solution tank through a conveying pipeline, the liquid is sprayed from the spraying device in a spraying mode, small gas particles in a turbulence area are subjected to sticky agglomeration under the influence of a spraying area, larger particles are formed, and the large gas particles fall into a rolling area;
A3: the particles are influenced by turbulent flow from a fan in the rolling area, roll circularly in the rolling area, and are gathered again;
A4: the agglomerated particles can fall on the filter screen when the weight of the agglomerated particles reaches a certain degree, and the agglomerated particles roll to the particle recovery areas on two sides of the reactor along with the radian of the filter screen.
The cross section of the device is square.
The width of the turbulent flow zone is 4 times of the width of the inlet.
The cross section of the rolling area is circular; the included angle of the rolling area is 60 degrees; the maximum equivalent diameter of the rolling zone is 2 times the minimum equivalent diameter of the filter screen.
The distance between the spraying area and the turbulent flow area is 3 times of the width of the inlet; the height of the spraying area is 3 times of the minimum equivalent diameter of the filter screen.
The protruding angle of the filter screen is 30 degrees, and the aperture ratio is 0.8.
The preparation method of the stainless steel filter screen comprises the following steps:
s1: immersing the stainless steel filter screen in phosphating solution for 4 hours, and drying the stainless steel filter screen in an oven at 120 ℃ for 8 hours to obtain a pre-phosphating stainless steel filter screen;
s2: placing the pre-phosphorized stainless steel filter screen into a rotary disk in an ion implanter, implanting chromium ions with ion energy of 90keV at 120 ℃, wherein the implantation rate is 516ion/cm 2 hr, and the implantation time is 4h, so as to realize chromium ion implantation of the pre-phosphorized stainless steel filter screen; the vacuum degree in the ion implanter cavity is 10Pa, the beam intensity of chromium ions is 10mA, and the spot diameter is 120mm.
The phosphating solution is prepared from the following raw materials: 30g of organic cerium phosphate complex, 100g of zinc nitrate, 20g of manganese nitrate, 3g of ammonium peroxodisulfate, 2g of thiourea, 3g of tartaric acid, 1g of ethylenediamine tetraacetic acid and 200g of water; and then mixing and stirring to obtain the phosphating solution.
The preparation method of the organic cerium phosphate complex comprises the following steps:
20g of aminobis (methylene phosphoric acid), 0.8g of cis-propenyl boric acid and 30g of cerium chloride are weighed in a reaction kettle, then added into 500g of ethanol for reaction for 40 minutes at 30 ℃, then added with 2g of sodium ethoxide for reaction for 20 minutes at 60 ℃, and ethanol is distilled off to obtain the organic cerium phosphate complex.
Example 2
A method and a device for efficiently agglomerating, drying and recycling fine particles are provided, which comprises a spray system device, a turbulence-enhanced agglomerating device, a three-stage agglomerating device consisting of a filtering and drying device, a particle recycling device and the like; the device is sequentially provided with a solution tank (1), a conveying pipeline (2), a spraying device (3), an exhaust gas inlet (4), a filter screen (5), a particle recovery area (6), a fan (7), a turbulence area (A), a spraying area (B), a rolling area (C) and a drying turbulence area (D) from left to right and from top to bottom.
The operation steps are as follows:
A1: industrial waste gas pollutants enter a turbulence area from a waste gas inlet to perform reciprocating oscillation;
A2: the reaction liquid enters a spraying device from a solution tank through a conveying pipeline, the liquid is sprayed from the spraying device in a spraying mode, small gas particles in a turbulence area are subjected to sticky agglomeration under the influence of a spraying area, larger particles are formed, and the large gas particles fall into a rolling area;
A3: the particles are influenced by turbulent flow from a fan in the rolling area, roll circularly in the rolling area, and are gathered again;
A4: the agglomerated particles can fall on the filter screen when the weight of the agglomerated particles reaches a certain degree, and the agglomerated particles roll to the particle recovery areas on two sides of the reactor along with the radian of the filter screen.
The cross section of the device is square.
The width of the turbulent flow zone is 5 times of the width of the inlet.
The cross section of the rolling area is circular; the included angle of the rolling area is 60 degrees; the maximum equivalent diameter of the rolling zone is 2 times the minimum equivalent diameter of the filter screen.
The distance between the spraying area and the turbulent flow area is 4 times of the width of the inlet; the height of the spraying area is 3 times of the minimum equivalent diameter of the filter screen.
The protruding angle of the filter screen is 30 degrees, and the aperture ratio is 0.8.
The preparation method of the stainless steel filter screen comprises the following steps:
s1: immersing the stainless steel filter screen in phosphating solution for 5 hours, and drying the stainless steel filter screen in an oven at 1250 ℃ for 9 hours to obtain a pre-phosphating stainless steel filter screen;
S2: placing the pre-phosphorized stainless steel filter screen into a rotary disk in an ion implanter, implanting chromium ions with ion energy of 90keV at 130 ℃, wherein the implantation rate is 516ion/cm 2 hr, and the implantation time is 5h, so as to realize chromium ion implantation of the pre-phosphorized stainless steel filter screen; the vacuum degree in the ion implanter cavity is 15Pa, the beam intensity of chromium ions is 15mA, and the spot diameter is 130mm.
The phosphating solution is prepared from the following raw materials: 35g of organic cerium phosphate complex, 105g of zinc nitrate, 23g of manganese nitrate, 4g of ammonium peroxodisulfate, 3g of thiourea, 4g of tartaric acid, 2g of ethylenediamine tetraacetic acid and 210g of water; and then mixing and stirring to obtain the phosphating solution.
The preparation method of the organic cerium phosphate complex comprises the following steps:
25g of aminobis (methylene phosphoric acid), 1g of cis-propenyl boric acid and 40g of cerium chloride are weighed in a reaction kettle, then added into 600g of ethanol, reacted for 60 minutes at 35 ℃, then added with 3g of sodium ethoxide, reacted for 30 minutes at 65 ℃, and ethanol is distilled off, so that the organic cerium phosphate complex is obtained.
Example 3
A method and a device for efficiently agglomerating, drying and recycling fine particles are provided, which comprises a spray system device, a turbulence-enhanced agglomerating device, a three-stage agglomerating device consisting of a filtering and drying device, a particle recycling device and the like; the device is sequentially provided with a solution tank (1), a conveying pipeline (2), a spraying device (3), an exhaust gas inlet (4), a filter screen (5), a particle recovery area (6), a fan (7), a turbulence area (A), a spraying area (B), a rolling area (C) and a drying turbulence area (D) from left to right and from top to bottom.
The operation steps are as follows:
A1: industrial waste gas pollutants enter a turbulence area from a waste gas inlet to perform reciprocating oscillation;
A2: the reaction liquid enters a spraying device from a solution tank through a conveying pipeline, the liquid is sprayed from the spraying device in a spraying mode, small gas particles in a turbulence area are subjected to sticky agglomeration under the influence of a spraying area, larger particles are formed, and the large gas particles fall into a rolling area;
A3: the particles are influenced by turbulent flow from a fan in the rolling area, roll circularly in the rolling area, and are gathered again;
A4: the agglomerated particles can fall on the filter screen when the weight of the agglomerated particles reaches a certain degree, and the agglomerated particles roll to the particle recovery areas on two sides of the reactor along with the radian of the filter screen.
The cross section of the device is square.
The width of the turbulent flow zone is 5 times of the width of the inlet.
The cross section of the rolling area is circular; the included angle of the rolling area is 60 degrees; the maximum equivalent diameter of the rolling zone is 3 times the minimum equivalent diameter of the filter screen.
The distance between the spraying area and the turbulent flow area is 4 times of the width of the inlet; the height of the spraying area is 4 times of the minimum equivalent diameter of the filter screen.
The protruding angle of the filter screen is 30 degrees, and the aperture ratio is 0.9.
The preparation method of the stainless steel filter screen comprises the following steps:
s1: immersing the stainless steel filter screen in phosphating solution for 6 hours, and drying the stainless steel filter screen in an oven at 135 ℃ for 11 hours to obtain a pre-phosphating stainless steel filter screen;
S2: placing the pre-phosphorized stainless steel filter screen into a rotary disk in an ion implanter, implanting chromium ions with ion energy of 90keV at 120-150 ℃ at the implantation rate of 516ion/cm 2 hr for 6h to realize chromium ion implantation of the pre-phosphorized stainless steel filter screen; the vacuum degree in the ion implanter cavity is 25Pa, the beam intensity of chromium ions is 15mA, and the spot diameter is 150mm.
The phosphating solution is prepared from the following raw materials: 40g of organic cerium phosphate complex, 115g of zinc nitrate, 28g of manganese nitrate, 5g of ammonium peroxodisulfate, 4g of thiourea, 5g of tartaric acid, 3g of ethylenediamine tetraacetic acid and 220g of water; and then mixing and stirring to obtain the phosphating solution.
The preparation method of the organic cerium phosphate complex comprises the following steps:
35g of aminobis (methylene phosphoric acid), 1.5g of cis-propenyl boric acid and 50g of cerium chloride are weighed in a reaction kettle, then added into 900g of ethanol to react for 80 minutes at 35 ℃, then added with 4g of sodium ethoxide to react for 40 minutes at 65 ℃, and ethanol is distilled off to obtain the organic cerium phosphate complex.
Example 4
A method and a device for efficiently agglomerating, drying and recycling fine particles are provided, which comprises a spray system device, a turbulence-enhanced agglomerating device, a three-stage agglomerating device consisting of a filtering and drying device, a particle recycling device and the like; the device is sequentially provided with a solution tank (1), a conveying pipeline (2), a spraying device (3), an exhaust gas inlet (4), a filter screen (5), a particle recovery area (6), a fan (7), a turbulence area (A), a spraying area (B), a rolling area (C) and a drying turbulence area (D) from left to right and from top to bottom.
The operation steps are as follows:
A1: industrial waste gas pollutants enter a turbulence area from a waste gas inlet to perform reciprocating oscillation;
A2: the reaction liquid enters a spraying device from a solution tank through a conveying pipeline, the liquid is sprayed from the spraying device in a spraying mode, small gas particles in a turbulence area are subjected to sticky agglomeration under the influence of a spraying area, larger particles are formed, and the large gas particles fall into a rolling area;
A3: the particles are influenced by turbulent flow from a fan in the rolling area, roll circularly in the rolling area, and are gathered again;
A4: the agglomerated particles can fall on the filter screen when the weight of the agglomerated particles reaches a certain degree, and the agglomerated particles roll to the particle recovery areas on two sides of the reactor along with the radian of the filter screen.
The cross section of the device is square.
The width of the turbulent flow zone is 6 times of the width of the inlet.
The cross section of the rolling area is circular; the included angle of the rolling area is 60 degrees; the maximum equivalent diameter of the rolling zone is 3 times the minimum equivalent diameter of the filter screen.
The distance between the spraying area and the turbulent flow area is 5 times of the width of the inlet; the height of the spraying area is 4 times of the minimum equivalent diameter of the filter screen.
The protruding angle of the filter screen is 30 degrees, and the aperture ratio is 0.9.
The preparation method of the stainless steel filter screen comprises the following steps:
S1: immersing the stainless steel filter screen in phosphating solution for 7 hours, and drying the stainless steel filter screen in an oven at 140 ℃ for 12 hours to obtain a pre-phosphating stainless steel filter screen;
S2: placing the pre-phosphorized stainless steel filter screen into a rotary disk in an ion implanter, implanting chromium ions with ion energy of 90keV at 150 ℃ at the implantation rate of 516ion/cm 2 hr and the implantation time of 7h to realize chromium ion implantation of the pre-phosphorized stainless steel filter screen; the vacuum degree in the ion implanter cavity is 3Pa, the beam intensity of chromium ions is 20mA, and the spot diameter is 160mm.
The phosphating solution is prepared from the following raw materials: 45g of organic cerium phosphate complex, 120g of zinc nitrate, 30g of manganese nitrate, 6g of ammonium peroxodisulfate, 5g of thiourea, 6g of tartaric acid, 4g of ethylenediamine tetraacetic acid and 230g of water; and then mixing and stirring to obtain the phosphating solution.
The preparation method of the organic cerium phosphate complex comprises the following steps:
41g of aminobis (methylene phosphoric acid), 1.7g of cis-propenyl boric acid and 60g of cerium chloride are weighed in a reaction kettle, then 1000g of ethanol is added for reaction for 100 minutes at 40 ℃, 5g of sodium ethoxide is added for reaction for 50 minutes at 70 ℃, and ethanol is distilled off to obtain the organic cerium phosphate complex.
Comparative example 1
The procedure of example 1 was repeated except that the cerium organophosphate complex was not added.
Comparative example 2
No aminobis (methylene phosphonic acid) was added, and the procedure of example 1 was followed.
Comparative example 3
The procedure of example 1 was repeated except that cis-propenyl boric acid was not added.
| Fine particle removal rate/% | Coefficient of friction | |
| Example 1 | 67 | 0.25 |
| Example 2 | 73 | 0.23 |
| Example 3 | 81 | 0.20 |
| Example 4 | 85 | 0.18 |
| Comparative example 1 | 26 | 0.51 |
| Comparative example 2 | 41 | 0.42 |
| Comparative example 3 | 49 | 0.39 |
Through the data analysis of the above examples and comparative examples, the method and the device for efficiently agglomerating, drying and recycling the fine particles can effectively improve the agglomeration and removal efficiency of ultrafine particles; the rectifying device ensures that the smoke flows more stably, the agglomeration efficiency is better, particles can be prevented from being broken due to collision, entrainment and the like, and the agglomeration effect is ensured.
It will be readily understood by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or the like which fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. A method and a device for efficiently agglomerating, drying and recycling fine particles are provided, which comprises a spray system device, a turbulence-enhanced agglomerating device, a three-stage agglomerating device consisting of a filtering and drying device, a particle recycling device and the like; the device is sequentially provided with a solution tank (1), a conveying pipeline (2), a spraying device (3), an exhaust gas inlet (4), a filter screen (5), a particle recovery area (6), a fan (7), a turbulence area (A), a spraying area (B), a rolling area (C) and a drying turbulence area (D) from left to right and from top to bottom.
2. The method and the device for efficiently agglomerating, drying and recycling fine particles according to claim 1, which are characterized in that: the operation steps are as follows:
A1: industrial waste gas pollutants enter a turbulence area from a waste gas inlet to perform reciprocating oscillation;
A2: the reaction liquid enters a spraying device from a solution tank through a conveying pipeline, the liquid is sprayed from the spraying device in a spraying mode, small gas particles in a turbulence area are subjected to sticky agglomeration under the influence of a spraying area, larger particles are formed, and the large gas particles fall into a rolling area;
A3: the particles are influenced by turbulent flow from a fan in the rolling area, roll circularly in the rolling area, and are gathered again;
A4: the agglomerated particles can fall on the filter screen when the weight of the agglomerated particles reaches a certain degree, and the agglomerated particles roll to the particle recovery areas on two sides of the reactor along with the radian of the filter screen.
3. The method and the device for efficiently agglomerating, drying and recycling fine particles according to claim 1, which are characterized in that: the cross section of the device is square.
4. The method and the device for efficiently agglomerating, drying and recycling fine particles according to claim 1, which are characterized in that: the width of the turbulent flow zone is 4-6 times of the width of the inlet.
5. The method and the device for efficiently agglomerating, drying and recycling fine particles according to claim 1, which are characterized in that: the cross section of the rolling area is circular; the included angle of the rolling area is 60 degrees; the maximum equivalent diameter of the rolling area is 2-3 times of the minimum equivalent diameter of the filter screen.
6. The method and the device for efficiently agglomerating, drying and recycling fine particles according to claim 1, which are characterized in that: the distance between the spraying area and the turbulent flow area is 3-5 times of the width of the inlet; the height of the spraying area is 3-4 times of the minimum equivalent diameter of the filter screen.
7. The method and the device for efficiently agglomerating, drying and recycling fine particles according to claim 1, which are characterized in that: the protruding angle of the filter screen is 30 degrees, and the aperture ratio of the stainless steel filter screen is 0.8-0.9.
8. The method and the device for efficiently agglomerating, drying and recycling the fine particles according to claim 7, which are characterized in that: the preparation method of the stainless steel filter screen comprises the following steps:
s1: immersing the stainless steel filter screen in phosphating solution for 4-7h, and drying in an oven at 120-140 ℃ for 8-12h to obtain a pre-phosphating stainless steel filter screen;
S2: placing the pre-phosphorized stainless steel filter screen into a rotary disk in an ion implanter, implanting chromium ions with ion energy of 90keV at 120-150 ℃ at the implantation rate of 516ion/cm2hr for 4-7h to realize chromium ion implantation of the pre-phosphorized stainless steel filter screen; the vacuum degree in the ion implanter cavity is 10-30Pa, the beam intensity of chromium ions is 10-20mA, and the spot diameter is 120-160mm.
9. The method and the device for efficiently agglomerating, drying and recycling the fine particles according to claim 8, which are characterized in that: the phosphating solution is prepared from the following raw materials in parts by weight: 30-45 parts of organic cerium phosphate complex, 100-120 parts of zinc nitrate, 20-30 parts of manganese nitrate, 3-6 parts of ammonium peroxodisulfate, 2-5 parts of thiourea, 3-6 parts of tartaric acid, 1-4 parts of ethylenediamine tetraacetic acid and 200-230 parts of water; and then mixing and stirring to obtain the phosphating solution.
10. The method and the device for efficiently agglomerating, drying and recycling fine particles according to claim 9, which are characterized in that: the preparation method of the organic cerium phosphate complex comprises the following steps:
Weighing 20-41 parts of aminobis (methylene phosphoric acid), 0.8-1.7 parts of cis-propenyl boric acid and 30-60 parts of cerium chloride in a reaction kettle, then adding into 500-1000 parts of ethanol, reacting for 40-100 minutes at 30-40 ℃, adding 2-5 parts of sodium ethoxide, reacting for 20-50 minutes at 60-70 ℃, and distilling to remove ethanol to obtain the organic cerium phosphate complex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410104500.3A CN117942686B (en) | 2024-01-25 | 2024-01-25 | Method and device for efficiently agglomerating, drying and recycling fine particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410104500.3A CN117942686B (en) | 2024-01-25 | 2024-01-25 | Method and device for efficiently agglomerating, drying and recycling fine particles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117942686A true CN117942686A (en) | 2024-04-30 |
| CN117942686B CN117942686B (en) | 2024-09-17 |
Family
ID=90800802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410104500.3A Active CN117942686B (en) | 2024-01-25 | 2024-01-25 | Method and device for efficiently agglomerating, drying and recycling fine particles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117942686B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3494046A (en) * | 1967-11-20 | 1970-02-10 | Union Carbide Corp | Fluid bed drying system |
| CN1050485A (en) * | 1989-09-28 | 1991-04-10 | 卡夫通用食品有限公司 | Agglomeration process and device thereof |
| CN102059029A (en) * | 2010-11-25 | 2011-05-18 | 东南大学 | Method and device for removing fine particles in high-humidity gas fume |
| CN203458942U (en) * | 2013-08-21 | 2014-03-05 | 广东省粤电集团有限公司沙角C电厂 | Ultrafine particle chemical agglomeration flocculation device based on wet desulphurization system |
| CN105886756A (en) * | 2016-05-12 | 2016-08-24 | 中南大学 | Preparation method of rutile micromass |
| CN205586724U (en) * | 2016-04-29 | 2016-09-21 | 武汉天空蓝环保科技有限公司 | Converge reunion tower soon |
| CN106544661A (en) * | 2016-12-12 | 2017-03-29 | 徐州迈斯特机械科技有限公司 | A kind of Phosphating Solution and preparation method thereof |
| CN211612251U (en) * | 2019-12-11 | 2020-10-02 | 苏州航明环保节能科技有限公司 | Coking flue gas desulfurization and denitrification device |
| CN115518463A (en) * | 2022-10-21 | 2022-12-27 | 大连理工大学盘锦产业技术研究院 | Device and process for reciprocating oscillation coalescence removal of fine particles in flue gas |
| CN117187768A (en) * | 2023-09-11 | 2023-12-08 | 西南交通大学 | Processing technology for steel ball surface modification |
-
2024
- 2024-01-25 CN CN202410104500.3A patent/CN117942686B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3494046A (en) * | 1967-11-20 | 1970-02-10 | Union Carbide Corp | Fluid bed drying system |
| CN1050485A (en) * | 1989-09-28 | 1991-04-10 | 卡夫通用食品有限公司 | Agglomeration process and device thereof |
| CN102059029A (en) * | 2010-11-25 | 2011-05-18 | 东南大学 | Method and device for removing fine particles in high-humidity gas fume |
| CN203458942U (en) * | 2013-08-21 | 2014-03-05 | 广东省粤电集团有限公司沙角C电厂 | Ultrafine particle chemical agglomeration flocculation device based on wet desulphurization system |
| CN205586724U (en) * | 2016-04-29 | 2016-09-21 | 武汉天空蓝环保科技有限公司 | Converge reunion tower soon |
| CN105886756A (en) * | 2016-05-12 | 2016-08-24 | 中南大学 | Preparation method of rutile micromass |
| CN106544661A (en) * | 2016-12-12 | 2017-03-29 | 徐州迈斯特机械科技有限公司 | A kind of Phosphating Solution and preparation method thereof |
| CN211612251U (en) * | 2019-12-11 | 2020-10-02 | 苏州航明环保节能科技有限公司 | Coking flue gas desulfurization and denitrification device |
| CN115518463A (en) * | 2022-10-21 | 2022-12-27 | 大连理工大学盘锦产业技术研究院 | Device and process for reciprocating oscillation coalescence removal of fine particles in flue gas |
| CN117187768A (en) * | 2023-09-11 | 2023-12-08 | 西南交通大学 | Processing technology for steel ball surface modification |
Non-Patent Citations (1)
| Title |
|---|
| 李范珠: "《药物制粒技术》", 28 February 2007, 化学工业出版社, pages: 199 - 201 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117942686B (en) | 2024-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109013058B (en) | High-efficient wet electrostatic precipitator catalytic oxidation jointly removes heavy metal device | |
| CN103962240A (en) | Wet type electric precipitation device and method for removing fine particulate matters in smoke desulfurized by wet process | |
| CN105169872A (en) | Device and method for flue gas cleaning by combining impact agglomeration wet dust collector with wet electric dust collector | |
| CN106693593A (en) | Double-ejection type angle type ultrafine particle coagulation tank | |
| CN201320442Y (en) | Flue-gas dust removal and purification device | |
| CN104069713B (en) | A kind of electricity-bag dust collecting process strengthening coalescence | |
| CN117942686B (en) | Method and device for efficiently agglomerating, drying and recycling fine particles | |
| CN101664621B (en) | Flue-gas dust removal and purification device | |
| CN201257355Y (en) | Device for increasing electric precipitator efficiency and reducing bag precipitator resistance | |
| CN106731437A (en) | The horizontal anchor type ultra-fine grain coalescence case of double jet type | |
| CN204996284U (en) | Bag - wet and reply box -like dust remover by cable | |
| CN204320230U (en) | A kind of when slurry-spraying pelletizing carries out to chemical fertilizer the tail cigarette of generation carry out the system of dedusting | |
| CN106693591A (en) | Waveform variable speed pipeline coalescer | |
| CN206810000U (en) | One kind crosses formula speed change ultra-fine grain coalescence case | |
| CN106622661B (en) | One kind crosses formula waveform speed change pipeline coalescer | |
| CN105854501A (en) | Emission reduction system for fine particles in sintering process of iron ore | |
| CN205340423U (en) | Flue gas advanced treatment unit | |
| CN208449614U (en) | Wet electrical dust precipitator is used in a kind of trapping of particle dust | |
| CN205391987U (en) | Bag dust remover air inlet dust collector in advance that dehumidifies | |
| CN211274048U (en) | Tail flue gas dust remover of waste incineration boiler | |
| CN211215994U (en) | Sound gathering and dust removing system for micron-sized particles | |
| CN209809837U (en) | Three-stage fine particle dust remover | |
| CN109181646B (en) | Dust suppressant for coal-fired power plant for promoting fine particle agglomeration | |
| CN203253532U (en) | Hollow pole plate electrostatic dust removing apparatus formed from porous dielectric material | |
| CN2780298Y (en) | Classification dust and separating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |