CN107930298A - A kind of LiFePO4 sintering furnace waste gas cleaning system and method - Google Patents
A kind of LiFePO4 sintering furnace waste gas cleaning system and method Download PDFInfo
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- CN107930298A CN107930298A CN201710966128.7A CN201710966128A CN107930298A CN 107930298 A CN107930298 A CN 107930298A CN 201710966128 A CN201710966128 A CN 201710966128A CN 107930298 A CN107930298 A CN 107930298A
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- inorganic ceramic
- ceramic membrane
- support column
- membrane support
- outlet
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Classifications
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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
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
-
- 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
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- 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
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/72—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with backwash arms, shoes or nozzles
-
- 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/04—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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
Abstract
The invention discloses a kind of LiFePO4 sintering furnace waste gas cleaning system, including two groups of clean units, every group of clean unit includes the first purifier and the second purifier, the first inorganic ceramic membrane support column is equipped with first purifier, the second inorganic ceramic membrane support column is equipped with second purifier, the inner wall of second filtering cavity of the second inorganic ceramic membrane support column is covered with inorganic ceramic film layer, the exhaust gas of every group of clean unit is sent into by air-supply arrangement and blower unit, and recoiling device recoils clean unit.Pass through the LiFePO4 sintering furnace waste gas cleaning system of above-mentioned optimization design, two purifiers are set in clean unit, utilize the sour gas such as dust, tar and the phosphide in inorganic ceramic membrane material adsorption filtration exhaust gas, sulfide, ensure treatment effect, at the same time by setting two groups of clean units, two groups of cycle alternation adsorption filtrations and recoil, can be with continuous processing exhaust gas, and greatly prolongs the service life of clean unit.
Description
Technical field
The present invention relates to lithium battery material prepared technology field, more particularly to a kind of LiFePO4 sintering furnace waste gas purification system
System and method.
Background technology
Petroleum resources are increasingly in short supply, and environmental pollution is serious, in order to solve problem above, Development of EV and hybrid power
Automobile is one of main method, and the development of electric automobile has driven developing rapidly for power battery anode material LiFePO4.
In LiFePO 4 material preparation process, though the exhaust gas that sintering process produces wherein still contains a large amount of by high temperature burning handling
Dust, the harmful smoke such as tar, environment can such as be polluted without processing directly discharge, thus to the flue gas after burning at
Reason receives much concern.
At present in terms of the purified treatment of exhaust gas, many people are made that extensive work.Precoated shet sack cleaner method, equipment
Simply, it is easy to operate, it is good to dust collection effect, but harmful phosphide and sulfide gas can not be filtered, and with useless
Temperature degree reduces, and tar easily produces the phenomenon that scabs in cloth bag surface, blocks cloth bag hole, makes bag-type dust ineffective；Dry type
Absorption method, no sewage produces, purification efficiency is high, and adsorbent uses coke or aluminium oxide more, the former tar adsorption performance is good, but inhales
Acid gas-containing ability is not high, and coke tar adsorption is first used so having, then with alumina adsorption sour gas etc., this method twice
Absorption, complex technical process, auxiliary device is more, and coke and aluminium oxide consumption are big, and processing cost is high；Dry type electric fishing and Absorption of Coke
Attached method is very poor to the acidic gaseous pollutant absorbability such as the phosphide in exhaust gas and sulfide, in addition collects the dope to get off
Dispose extremely difficult.
The content of the invention
To solve technical problem present in background technology, the present invention proposes a kind of LiFePO4 sintering furnace waste gas purification system
System and method.
A kind of LiFePO4 sintering furnace waste gas cleaning system proposed by the present invention, including：Air-supply arrangement, two groups of purification lists
Member, blower unit, recoiling device；
Every group of clean unit includes the first purifier and the second purifier, and the first purifier is internally provided with the first appearance
Receive chamber, the first accommodating chamber side wall is equipped with the first air inlet, the first gas outlet, the first washing lotion import, the first washing lotion
Outlet, first accommodating chamber is interior to be equipped with the first inorganic ceramic membrane support column, and the first inorganic ceramic membrane support column is internally provided with
Along the first filtering cavity of its axis extension, the first filtering cavity both ends respectively with first air inlet and described first
Liquid outlet connects, and first gas outlet and first inlet hold with the first inorganic ceramic membrane support column and described first
The cavity connection received between chamber sidewall, the material aperture of the first inorganic ceramic membrane support column is D1；
Second purifier is internally provided with the second accommodating chamber, and the second accommodating chamber side wall is equipped with the second air inlet
Mouth, the second gas outlet, the second washing lotion import, the second washing lotion outlet, second accommodating chamber is interior to be equipped with the second inorganic ceramic membrane
Support column, the second inorganic ceramic membrane support column are internally provided with the second filtering cavity along the extension of its axis, and second filtering is logical
Chamber both ends are connected with the second air inlet and the second liquid outlet respectively, and second gas outlet and second inlet are with second
Cavity between inorganic ceramic membrane support column and the second accommodating chamber side wall connects, and the inner wall of the second filtering cavity covers
It is stamped inorganic ceramic film layer, the material aperture of the second inorganic ceramic membrane support column is D2, the material of the inorganic ceramic film layer
Blanking aperture is D, D ＜ D1 and D ＜ D2；
Second washing lotion outlet and the first washing lotion inlet communication, first washing lotion outlet and second washing lotion
Import is connected with recoiling device, and first gas outlet is connected with second air inlet, and first air inlet is filled with air-supply
Put connection and second gas outlet is connected with blower unit.
Preferably, first air inlet is located at the top of first accommodating chamber and first washing lotion outlet is located at
The bottom of first accommodating chamber, second air inlet are located at the top of second accommodating chamber and second washing lotion
Positioned at the bottom of second accommodating chamber, the first inorganic ceramic membrane support column and the second inorganic ceramic membrane support column are vertical for outlet
Set.
Preferably, the first washing lotion import is located above first gas outlet, and the second washing lotion import is located at
Above second gas outlet.
Preferably, the first inorganic ceramic film support and the second inorganic ceramic film support are using aluminium oxide, zirconium oxide, oxygen
The one kind changed in titanium or silica is made.
In the present invention, the LiFePO4 sintering furnace waste gas cleaning system that is proposed, including two groups of clean units, every group of purification
Unit includes the first purifier and the second purifier, and the first inorganic ceramic membrane support column is equipped with the first purifier, the
The second inorganic ceramic membrane support column, the inner wall of the second filtering cavity of the second inorganic ceramic membrane support column are equipped with two purifiers
Covered with inorganic ceramic film layer, the exhaust gas of every group of clean unit is sent into by air-supply arrangement and blower unit, and recoiling device is to net
Change unit to recoil.By the LiFePO4 sintering furnace waste gas cleaning system of above-mentioned optimization design, structural design optimization is reasonable,
Two purifiers are set in clean unit, adsorb and filter dust, tar and the phosphorus in exhaust gas using inorganic ceramic membrane material
The sour gas such as compound, sulfide, ensure treatment effect, while by setting two groups of clean units, two groups of cycle alternation absorption
Filtering and recoil, can be with continuous processing exhaust gas, and greatly prolongs the service life of clean unit.
The present invention also proposes a kind of purification method of above-mentioned LiFePO4 sintering furnace waste gas cleaning system, passes through air-supply arrangement
Pending exhaust gas is introduced in the first filtering cavity via the first air inlet, exhaust gas is inhaled through the first inorganic ceramic membrane support column
Pass through by the discharge of the first gas outlet after echoing filtering, then introduce the gas that first gas outlet is discharged via the second air inlet
In the second filtering cavity, exhaust gas is passed through after the second inorganic ceramic membrane support column adsorbs and filters and discharged by the second gas outlet.
Preferably, while purification by one group of clean unit to exhaust gas, by recoiling device to another group of purification
Unit carries out recoil cleaning.
Preferably, the pressure of the first filtering cavity for one group of clean unit that detection is purified, when described first
When pressure in filtering cavity is more than predetermined threshold value, the clean unit recoil while open by recoiling device another
Group clean unit is purified.
Preferably, in the cleaning process that recoils, enter successively via the second wash liquor inlet, the second washing lotion outlet, the first washing lotion
Mouth, the first washing lotion outlet recoil the second inorganic ceramic membrane support column and the first inorganic ceramic membrane support column.
Preferably, the clean unit is rinsed using cleaning solution first, it is then single to the purification using clear water
Member is rinsed；Preferably, the cleaning solution uses sodium bicarbonate solution；It is highly preferred that the concentration of the sodium bicarbonate solution
For 0.002mol/L, and the temperature of the cold sodium bicarbonate solution is 90 DEG C.
Preferably, before the cleaning fluid discharge after the flushing, flocculated by being added into the cleaning solution after the flushing
Agent handles flushing liquor；Preferably, the flocculant uses polyacrylamide.
Preferably, after being rinsed using clear water to the clean unit, using drying compressed air by the second inorganic pottery
Porcelain film support column and the first inorganic ceramic membrane support column drying.
In the present invention, the LiFePO4 sintering furnace exhaust gas purifying method that is proposed, its technique effect and above-mentioned cleaning system
Similar, details are not described herein.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of LiFePO4 sintering furnace waste gas cleaning system proposed by the present invention.
Fig. 2 shows for a kind of structure of first purifier of LiFePO4 sintering furnace waste gas cleaning system proposed by the present invention
It is intended to.
Fig. 3 shows for a kind of structure of second purifier of LiFePO4 sintering furnace waste gas cleaning system proposed by the present invention
It is intended to.
Embodiment
As shown in Figs. 1-3, Fig. 1 is a kind of structural representation of LiFePO4 sintering furnace waste gas cleaning system proposed by the present invention
Figure, Fig. 2 is a kind of structure diagram of first purifier of LiFePO4 sintering furnace waste gas cleaning system proposed by the present invention,
Fig. 3 is a kind of structure diagram of second purifier of LiFePO4 sintering furnace waste gas cleaning system proposed by the present invention.
Reference Fig. 1-3, a kind of LiFePO4 sintering furnace waste gas cleaning system proposed by the present invention, including：Air-supply arrangement, two
Group clean unit, blower unit 2, recoiling device；
Every group of clean unit includes the first purifier 3 and the second purifier 4, and the first purifier 3 is internally provided with
One accommodating chamber, the first accommodating chamber side wall are equipped with the first air inlet, the first gas outlet, the first washing lotion import, first
Washing lotion outlet, is equipped with the first inorganic ceramic membrane support column 5 in first accommodating chamber, in the first inorganic ceramic membrane support column 5
Portion is equipped with the first filtering cavity along the extension of its axis, the first filtering cavity both ends respectively with first air inlet and institute
State the connection of the first liquid outlet, first gas outlet and first inlet with the first inorganic ceramic membrane support column 5 and institute
The cavity connection between the first accommodating chamber side wall is stated, the material aperture of the first inorganic ceramic membrane support column 5 is D1；
Second purifier 4 is internally provided with the second accommodating chamber, and the second accommodating chamber side wall is equipped with the second air inlet
Mouth, the second gas outlet, the second washing lotion import, the second washing lotion outlet, second accommodating chamber is interior to be equipped with the second inorganic ceramic membrane
Support column 6, the second inorganic ceramic membrane support column 6 are internally provided with the second filtering cavity along the extension of its axis, second filtering
Cavity both ends are connected with the second air inlet and the second liquid outlet respectively, and second gas outlet and second inlet are with
Cavity between two inorganic ceramic membrane support columns 6 and the second accommodating chamber side wall connects, and described second filters the interior of cavity
Wall is covered with inorganic ceramic film layer, and the material aperture of the second inorganic ceramic membrane support column 6 is D2, the inorganic ceramic film layer
Material aperture be D, D ＜ D1 and D ＜ D2；
Second washing lotion outlet and the first washing lotion inlet communication, first washing lotion outlet and second washing lotion
Import is connected with recoiling device, and first gas outlet is connected with second air inlet, and first air inlet is filled with air-supply
Put 1 connection and second gas outlet is connected with blower unit 2.
As shown in solid line route in Fig. 1, the present embodiment also proposes a kind of above-mentioned LiFePO4 sintering furnace waste gas cleaning system
Purification method, by air-supply arrangement via the first air inlet by pending exhaust gas introduce it is described first filtering cavity in, exhaust gas
Pass through after the first inorganic ceramic membrane support column 5 is adsorbed and filtered and discharged by the first gas outlet, then arrange first gas outlet
The gas gone out is introduced in the second filtering cavity via the second air inlet, and exhaust gas is adsorbed through the second inorganic ceramic membrane support column 6
Discharged with being passed through after filtering by the second gas outlet；When exhaust gas is by the first filtering cavity, dust, tar and the acid of bulky grain in exhaust gas
Property gas adsorbed and filtered, when exhaust gas is by the second filtering cavity, fine particle dusts and tar in exhaust gas by absorption and
Filtering.
In the present embodiment, the LiFePO4 sintering furnace waste gas cleaning system proposed, including two groups of clean units, every group
Clean unit includes the first purifier and the second purifier, and being equipped with the first inorganic ceramic membrane in the first purifier supports
Column, the second purifier is interior to be equipped with the second inorganic ceramic membrane support column, the second filtering cavity of the second inorganic ceramic membrane support column
Inner wall covered with inorganic ceramic film layer, the exhaust gas of every group of clean unit passes through air-supply arrangement and blower unit is sent into, recoil dress
Put and recoil to clean unit.It is excellent by the LiFePO4 sintering furnace waste gas cleaning system of above-mentioned optimization design, structure design
Chemical combination is managed, and two purifiers are set in clean unit, utilize the dust in inorganic ceramic membrane material adsorption filtration exhaust gas, tar
With the sour gas such as phosphide, sulfide, ensure treatment effect, while pass through and two groups of clean units, two groups of cycle alternations are set
Adsorption filtration and recoil, can be with continuous processing exhaust gas, and greatly prolongs the service life of clean unit.
In the specific design method of the present embodiment cleaning system, first air inlet is located at first accommodating chamber
Top and first washing lotion outlet be located at the bottom of first accommodating chamber, second air inlet is located at described second
The top of accommodating chamber and second washing lotion outlet are located at the bottom of second accommodating chamber, the support of the first inorganic ceramic membrane
5 and second inorganic ceramic membrane support column 6 of column is vertically arranged.
In other further specific design methods, the first washing lotion import is located above first gas outlet, and
The second washing lotion import is located above second gas outlet.
In the specifically chosen mode of inorganic ceramic membrane support body material, the first inorganic ceramic film support and second inorganic
Ceramic film support uses one kind in aluminium oxide, zirconium oxide, titanium oxide or silica to be made.
In the embodiment of the present embodiment purification method, exhaust gas is purified by one group of clean unit same
When, recoil cleaning is carried out to another group of clean unit by recoiling device.
With inorganic ceramic film support and inorganic ceramic membrane retention dust, the increasing of tar and adsorption filtration acid gas quantity
Adding, the pressure of purifier gradually increases, in the specific handoff procedure of purification process and back flushing process, what detection was purified
The pressure of the first filtering cavity of one group of clean unit, when the pressure in the described first filtering cavity is more than predetermined threshold value
When, carry out recoiling while open another group of clean unit purifying to the clean unit by recoiling device.
In further embodiment, as shown in phantom in Figure 1, in the cleaning process that recoils, successively via second
Wash liquor inlet, the second washing lotion outlet, the first wash liquor inlet, the first washing lotion outlet are to the second inorganic ceramic membrane support column 6 and first
Inorganic ceramic membrane support column 5 recoils.
In specific backwashing manner, the clean unit is rinsed using cleaning solution first, then using clear water pair
The clean unit is rinsed；Preferably, the cleaning solution uses sodium bicarbonate solution；It is highly preferred that the sodium acid carbonate
The concentration of solution is 0.002mol/L, and the temperature of the cold sodium bicarbonate solution is 90 DEG C.
In the processing procedure of cleaning solution, before the cleaning fluid discharge after the flushing, by clear after the flushing
Flocculant is added in washing lotion to handle flushing liquor；Preferably, the flocculant uses polyacrylamide.
In further embodiment, after being rinsed using clear water to the clean unit, pressed using dry
Contracting air dries up the second inorganic ceramic membrane support column 6 and the first inorganic ceramic membrane support column 5.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
- A kind of 1. LiFePO4 sintering furnace waste gas cleaning system, it is characterised in that including：Air-supply arrangement, two groups of clean units, draw Wind apparatus (2), recoiling device；Every group of clean unit includes the first purifier (3) and the second purifier (4), and the first purifier (3) is internally provided with First accommodating chamber, the first accommodating chamber side wall are equipped with the first air inlet, the first gas outlet, the first washing lotion import, the One washing lotion outlet, first accommodating chamber is interior to be equipped with the first inorganic ceramic membrane support column (5), the first inorganic ceramic membrane support column (5) be internally provided with the first filtering cavity along the extension of its axis, the first filtering cavity both ends respectively with first air inlet Mouthful connected with first liquid outlet, first gas outlet and first inlet with the first inorganic ceramic membrane support column (5) cavity between the first accommodating chamber side wall connects, the material aperture of the first inorganic ceramic membrane support column (5) For D1；Second purifier (4) is internally provided with the second accommodating chamber, the second accommodating chamber side wall be equipped with the second air inlet, Second gas outlet, the second washing lotion import, the second washing lotion outlet, interior second inorganic ceramic membrane that is equipped with of second accommodating chamber support Column (6), the second inorganic ceramic membrane support column (6) are internally provided with the second filtering cavity along the extension of its axis, second filtering Cavity both ends are connected with the second air inlet and the second liquid outlet respectively, and second gas outlet and second inlet are with Two inorganic ceramic membrane support columns (6) are connected with the cavity between the second accommodating chamber side wall, the second filtering cavity Inner wall is covered with inorganic ceramic film layer, and the material aperture of the second inorganic ceramic membrane support column (6) is D2, the inorganic ceramic The material aperture of film layer is D, D ＜ D1 and D ＜ D2；Second washing lotion outlet and the first washing lotion inlet communication, first washing lotion outlet and the second washing lotion import Connected with recoiling device, first gas outlet is connected with second air inlet, and first air inlet connects with air-supply arrangement Logical and described second gas outlet is connected with blower unit (2).
- 2. LiFePO4 sintering furnace waste gas cleaning system according to claim 1, it is characterised in that first air inlet It is located at the bottom of first accommodating chamber positioned at the top of first accommodating chamber and first washing lotion outlet, described Two air inlets are located at the top of second accommodating chamber and second washing lotion outlet is located at the bottom of second accommodating chamber Portion, the first inorganic ceramic membrane support column (5) and the second inorganic ceramic membrane support column (6) are vertically arranged.
- 3. LiFePO4 sintering furnace waste gas cleaning system according to claim 1, it is characterised in that first washing lotion into Mouth is above first gas outlet, and the second washing lotion import is located above second gas outlet.
- 4. a kind of purification method of LiFePO4 sintering furnace waste gas cleaning system according to claim 1-3, its feature exist In by air-supply arrangement via the first air inlet by pending exhaust gas introducing the first filtering cavity, exhaust gas is through the first nothing Pass through after machine ceramic membrane support column (5) adsorption filtration and discharged by the first gas outlet, the gas for then discharging first gas outlet Introduced via the second air inlet in the second filtering cavity, exhaust gas is after second inorganic ceramic membrane support column (6) adsorption filtration Discharged via the second gas outlet.
- 5. the purification method of LiFePO4 sintering furnace waste gas cleaning system according to claim 4, it is characterised in that pass through While one group of clean unit purifies exhaust gas, recoil cleaning is carried out to another group of clean unit by recoiling device.
- 6. the purification method of LiFePO4 sintering furnace waste gas cleaning system according to claim 5, it is characterised in that detection The pressure of the first filtering cavity of the one group of clean unit purified, when the pressure in the described first filtering cavity is more than During predetermined threshold value, carry out recoiling while open another group of clean unit purifying to the clean unit by recoiling device.
- 7. the purification method of LiFePO4 sintering furnace waste gas cleaning system according to claim 5, it is characterised in that anti- Rush in cleaning process, successively via the second wash liquor inlet, the second washing lotion outlet, the first wash liquor inlet, the first washing lotion outlet to Two inorganic ceramic membrane support columns (6) and the first inorganic ceramic membrane support column (5) recoil.
- 8. the purification method of LiFePO4 sintering furnace waste gas cleaning system according to claim 5, it is characterised in that first The clean unit is rinsed using cleaning solution, then the clean unit is rinsed using clear water；Preferably, institute State cleaning solution and use sodium bicarbonate solution；It is highly preferred that the concentration of the sodium bicarbonate solution is 0.002mol/L, and it is described The temperature of cold sodium bicarbonate solution is 90 DEG C.
- 9. the purification method of LiFePO4 sintering furnace waste gas cleaning system according to claim 8, it is characterised in that in institute Before stating the cleaning fluid discharge after rinsing, flushing liquor is handled by adding flocculant into the cleaning solution after the flushing； Preferably, the flocculant uses polyacrylamide.
- 10. the purification method of LiFePO4 sintering furnace waste gas cleaning system according to claim 9, it is characterised in that adopt After being rinsed with clear water to the clean unit, using drying compressed air by the second inorganic ceramic membrane support column (6) and institute State the drying of the first inorganic ceramic membrane support column (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710966128.7A CN107930298B (en) | 2017-10-17 | 2017-10-17 | Waste gas purification system and method for lithium iron phosphate sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710966128.7A CN107930298B (en) | 2017-10-17 | 2017-10-17 | Waste gas purification system and method for lithium iron phosphate sintering furnace |
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| Publication Number | Publication Date |
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| CN107930298A true CN107930298A (en) | 2018-04-20 |
| CN107930298B CN107930298B (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710966128.7A Active CN107930298B (en) | 2017-10-17 | 2017-10-17 | Waste gas purification system and method for lithium iron phosphate sintering furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110690429A (en) * | 2019-10-14 | 2020-01-14 | 王敏 | Treatment method of waste lithium iron phosphate |
| CN111378509A (en) * | 2018-12-28 | 2020-07-07 | 中国石油化工股份有限公司 | Biomass microwave pyrolysis gasification method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111378509A (en) * | 2018-12-28 | 2020-07-07 | 中国石油化工股份有限公司 | Biomass microwave pyrolysis gasification method and system |
| CN110690429A (en) * | 2019-10-14 | 2020-01-14 | 王敏 | Treatment method of waste lithium iron phosphate |
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| Publication number | Publication date |
|---|---|
| CN107930298B (en) | 2021-05-11 |
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