CN105836810A - Acid regeneration station ferric oxide powder cooling treatment system - Google Patents
Acid regeneration station ferric oxide powder cooling treatment system Download PDFInfo
- Publication number
- CN105836810A CN105836810A CN201610343672.1A CN201610343672A CN105836810A CN 105836810 A CN105836810 A CN 105836810A CN 201610343672 A CN201610343672 A CN 201610343672A CN 105836810 A CN105836810 A CN 105836810A
- Authority
- CN
- China
- Prior art keywords
- oxide powder
- ferric oxide
- iron oxide
- roaster
- brown iron
- 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
- 239000000843 powder Substances 0.000 title claims abstract description 32
- 239000002253 acid Substances 0.000 title claims abstract description 23
- 238000001816 cooling Methods 0.000 title claims abstract description 19
- 230000008929 regeneration Effects 0.000 title claims abstract description 17
- 238000011069 regeneration method Methods 0.000 title claims abstract description 17
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title abstract 14
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 title abstract 14
- 239000000428 dust Substances 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 48
- 229940067573 brown iron oxide Drugs 0.000 claims description 44
- 238000007599 discharging Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 9
- 238000011049 filling Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 230000001502 supplementing effect Effects 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000006298 dechlorination reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229960002089 ferrous chloride Drugs 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000009700 powder processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/03—Preparation from chlorides
- C01B7/035—Preparation of hydrogen chloride from chlorides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Iron (AREA)
Abstract
The invention relates to an acid regeneration station ferric oxide powder cooling treatment system. According to the acid regeneration station ferric oxide powder cooling treatment system, a block breaker and a roasting furnace rotating valve are mounted at the bottom discharge hole of a roasting furnace; the bottom discharge hole is further connected with a ferric oxide powder conveying pipeline; the ferric oxide powder conveying pipeline is connected with a ferric oxide powder bin through a plastic plate dust separator; a conveying fan is mounted on the ferric oxide powder conveying pipeline; a ferric oxide powder bin board plug valve and a ferric oxide powder bin rotating valve are mounted at the discharge hole of the ferric oxide powder bin; the discharge hole is further connected with a ferric oxide powder bagging machine; a section of air inlet pipeline is connected with the ferric oxide powder conveying pipeline which is connected with the lower part of the rotating furnace rotating valve at the discharge hole of the roasting furnace; an air inlet is formed in the wall of the air inlet pipeline; the air inlet pipeline is provided with a horizontal extension end; an air supplementing hole is formed in the axial end part of the horizontal extension end; a baffle is mounted on the air supplementing hole. The acid regeneration station ferric oxide powder cooling treatment system is reasonable in structural design and simple and convenient to operate, the cooling effect of ferric oxide powder can be improved, the high temperature resistance requirements of dust collection equipment can be effectively reduced, and the service life of equipment can be prolonged.
Description
Technical field
The present invention relates to acid regeneration technology, at the brown iron oxide cooling down of particularly a kind of acid regeneration station
Reason system.
Background technology
The key component that industrial waste acid gives up as danger, its recycling is well worth doing.Advance
The recycling of industrial waste acid, is possible not only to avoid environmental pollution, reduces Resources and uses,
And new energy-conserving and environment-protective industry can be expedited the emergence of, form new growth engines.At present, spraying roasting
Burn the acid pickle that acid regeneration technique produces mainly for the treatment of cold-rolling pickling strip steel.This technology exists
Domestic each big-and-middle-sized iron and steel enterprise is applied and promotes.
Regeneration of hydrochloric acid technique main body include heat treatment system, heat-exchange system, smoke absorption system,
Flue gas purification system, iron powder processing system and tank system.Heat treatment system main equipment includes roasting
Burn stove, double-cyclone dust collector.Spent acid is heated in stove, decomposes and generates Fe2O3 and HCl gas.
Burner is set in the middle part of roaster, mainly includes main burner, igniter burner, UV-flame detector
And required pipeline manually-operated gate, instrument and regulation valve.Bottom roaster, dechlorination device is for ferrum
Powder carries out post bake, removes the chlorine root in brown iron oxide.Returned by conveying worm, brown iron oxide
Hui Cang, disintegrating machine, rotary valve, burner and corresponding control instrument and valve composition.Power-equipment
Bearing uses resistant to elevated temperatures SKF bearing, housing and rotor to use import abrasion-resistant stee.Brown iron oxide breaks
Broken machine is used for preventing brown iron oxide caking blocking furnace bottom；The multiple rotary valves used are mainly used in discharging
Brown iron oxide in stove also can prevent extraneous air from entering in stove.Double-cyclone dust collector uses straight carbon steel
Make, for disjunctor pyramidal structure.For isolating the brown iron oxide in roaster reacting gas, and
Back into roaster.Import velocity of flue gas about 15-20m/s, removal efficiency is up to about 50%.
In brown iron oxide processing system, brown iron oxide conveying fan is by iron powder conveyance conduit suction sky
Brown iron oxide is transported to iron powder storehouse from roaster by gas, simultaneous oxidation iron powder be cooled to 120 DEG C with
In.At present, need it is entered when brown iron oxide oxidized iron powder conveyance conduit goes out from roasting fire grate
Sector-style is cold.Existing way is to install cooling admission line in the bottom of roaster.At admission line
On be shaped with an air intlet, but, it exists, and air inlet is little, and cooling effect is not good enough, ferrum
Powder temperature is high, the problem high to follow-up dust separation equipment requirements, dust separation service life of equipment
Short, increase production cost.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of air inflow is big and adjustable
Joint, can improve the cooling effect of brown iron oxide, effectively to reduce the high temperature resistant requirement to cleaner,
Extension device service life there is the acid regeneration station iron powder cooling down system mending wind function.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of acid regeneration station brown iron oxide cooling down processing system, including roaster, agglomerates
Machine, roaster rotary valve, brown iron oxide conveyance conduit, ferrum oxide powder cabin, sintered plate dust separation
Device, iron powder storehouse push-pull valve, iron powder storehouse rotary valve, iron powder sack filling machine, conveying fan, at the bottom of roaster
Portion's discharging opening is installed block mass crusher and roaster rotary valve and connects brown iron oxide conveyance conduit, oxygen
Change iron powder conveyance conduit and connect ferrum oxide powder cabin, brown iron oxide conveying pipe through plastic plate dust separator
Installing conveying fan on road, the discharging opening of ferrum oxide powder cabin installs iron powder storehouse push-pull valve and the rotation of iron powder storehouse
Rotary valve is also connected to iron powder sack filling machine, it is characterised in that: at the roaster of described roaster discharging opening
One section of intake stack is connected, at this air intake on the brown iron oxide conveyance conduit that rotary valve bottom is connected
Being shaped with air inlet on the tube wall of pipeline, this intake stack is shaped with horizontal-extending end, horizontal-extending at it
The axial end portion of end offers wind-supplying mouth, installs a baffle plate on this wind-supplying mouth.
And, described baffle plate is sideboard, the upper end of this sideboard and intake stack
The tube wall hinge load of elongated end connects.
Advantages of the present invention and having the beneficial effect that
1, this acid regeneration station brown iron oxide cooling down processing system, by brown iron oxide conveying pipe
Connect intake stack on road, intake stack arrange air inlet, and wind-supplying mouth is set in end,
Brown iron oxide can be made to precool before entering plastic plate dust separator through its conveyance conduit,
Make its temperature reduce, thus reduce plastic plate dust separator to resistant to elevated temperatures requirement, not only reduce
Equipment cost, and effectively reduce the high-temperature dust loss to equipment, extend its service life.
2, this acid regeneration station brown iron oxide cooling down processing system, this wind-supplying mouth is installed a baffle plate,
Baffle plate is sideboard, and the upper end of this sideboard fills with the tube wall hinge of the elongated end of intake stack
Connect, can suitably regulate sideboard aperture, to realize the adjustment of air compensation.
3, present configuration is reasonable in design, easy and simple to handle, can improve the cooling effect of brown iron oxide,
Effectively to reduce the high temperature resistant requirement to cleaner, extension device service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the A portion enlarged drawing of Fig. 1；
Fig. 3 is the B portion enlarged drawing of Fig. 2.
Description of reference numerals:
1-conveying fan, 2-sintered plate dust separator, 3-ferrum oxide powder cabin, 4-brown iron oxide carry
Pipeline, 5-spray gun, 6-roaster, 7-cyclone separator, 8-block mass crusher, 9-iron powder pack
Machine, 10-roaster rotary valve, 11-intake stack, 12-wind-supplying mouth, 13-air inlet, 14-baffle plate,
15-iron powder storehouse push-pull valve, 16-iron powder storehouse rotary valve.
Detailed description of the invention
Below by specific embodiment, the invention will be further described, and following example simply describe
Property, it not determinate, it is impossible to limit protection scope of the present invention with this.
A kind of acid regeneration station brown iron oxide cooling down processing system, including roaster 6, agglomerates
Machine 8, roaster rotary valve 10, brown iron oxide conveyance conduit 4, ferrum oxide powder cabin 3, sintered plate powder
Dirt separator 2, iron powder storehouse push-pull valve 15, iron powder storehouse rotary valve 16, iron powder sack filling machine 9, conveying
Blower fan 1.One group of spray gun 5 is installed in roaster, is used for being atomized spent acid liquid, install in roaster
Burner, is used for lighting combustion gas, and the gas outlet of roaster connects cyclone separator 7.At the bottom of roaster
Portion's discharging opening is installed block mass crusher and roaster rotary valve and connects brown iron oxide conveyance conduit.Oxygen
Change iron powder conveyance conduit and connect ferrum oxide powder cabin, brown iron oxide conveying pipe through plastic plate dust separator
Installing conveying fan on road, the discharging opening of ferrum oxide powder cabin installs iron powder storehouse push-pull valve and the rotation of iron powder storehouse
Rotary valve is also connected to iron powder sack filling machine.
Connect on the brown iron oxide conveyance conduit that the roaster rotary valve bottom of roaster discharging opening is connected
Connect one section of intake stack 11, the tube wall of this intake stack is shaped with air inlet 13, this intake stack
Being shaped with horizontal-extending end, the axial end portion at its horizontal-extending end offers wind-supplying mouth 12, at this benefit wind
One baffle plate 14 is installed on mouth.Baffle plate is sideboard, the upper end of this sideboard and intake stack
Elongated end tube wall hinge load connect.
The operation principle of this acid regeneration station brown iron oxide cooling down processing system is:
Concentrating waste acid is resolved into Fe by roaster2O3With HCL steam, concentrating waste acid in roaster
In moisture evaporated, ferrous chloride micropowder and combustion heat air-flow are countercurrent direction, fall to furnace bottom
Oxidized it is decomposed into HCl and Fe2O3.Roasting gas leaves stove from furnace roof, wherein contains HCl
Gas, steam, combustion product, a small amount of Fe2O3 powder and the oxygen of surplus.Roasting gas enters
Cyclone separator separates, and the Fe2O3 powder after separation returns to roaster.
Block mass crusher is mainly made up of outer steel shell and two breaker rolls.Breaker roll is mutually handed over by some
Pitch into the square plate composition of 45 degree, with heat-resisting reaching 450 DEG C of material manufactures.Gear drive.Agglomerate breaks
Broken machine is for the broken sintering Fe that may generate2O3Agglomerate.By valve body, (steel plate welds roaster rotary valve
Connect), sealing shroud, rotor (material: rustless steel make), decelerator and large and small sprocket wheel composition.
Roaster rotary valve enters stove for brown iron oxide is sent in roaster and can be prevented extraneous air
In.Ferrum oxide storehouse is a cylindrical steel can, and lower bands cone is used for storing brown iron oxide.
Cang Ding is provided with sintered plate dust separator.Bottom Fe2O3Powder outlet is controlled by an automatic rotary rotary valve
System, separately has a hand operated gate valve maintenance to use.The upper limit material position in storehouse and lower limit material position level switch
Instruction.As reach upper limit material position acid program be cut off, automatically transfer to water operation, exit, storehouse equipped with
Pneumatic vibrator.
Sintered plate dust separator is installed at the top of ferrum oxide powder cabin, is used for purifying the sky of conveying iron powder
Gas, isolated brown iron oxide is fallen in iron powder storehouse.Brown iron oxide conveying fan is carried by iron powder
Brown iron oxide is transported to iron powder storehouse from roaster by pipeline suction air, and simultaneous oxidation iron powder is cooled
Within 120 DEG C.
By connecting intake stack on brown iron oxide conveyance conduit, intake stack arranges air intake
Mouthful, and wind-supplying mouth is set in end, brown iron oxide can be made to enter plastic plate powder through its conveyance conduit
Precool before dirt separator so that it is temperature reduces, thus reduces plastic plate dust separator
To resistant to elevated temperatures requirement, not only reduce equipment cost, and effectively reduce high-temperature dust to equipment
Loss, extends its service life.
Although disclose embodiments of the invention and accompanying drawing for the purpose of illustration, but the technology of this area
Personnel are understood that without departing from the present invention and spirit and scope of the appended claims, various
Replace, to change and modifications be all possible, therefore, the scope of the present invention be not limited to embodiment and
Accompanying drawing disclosure of that.
Claims (2)
1. an acid regeneration station brown iron oxide cooling down processing system, breaks including roaster, agglomerate
Broken machine, roaster rotary valve, brown iron oxide conveyance conduit, ferrum oxide powder cabin, sintered plate dust divide
From device, iron powder storehouse push-pull valve, iron powder storehouse rotary valve, iron powder sack filling machine, conveying fan, roaster
Bottom discharge mouth is installed block mass crusher and roaster rotary valve and connects brown iron oxide conveyance conduit,
Brown iron oxide conveyance conduit connects ferrum oxide powder cabin through plastic plate dust separator, and brown iron oxide carries
Installing conveying fan on pipeline, the discharging opening of ferrum oxide powder cabin installs iron powder storehouse push-pull valve and iron powder storehouse
Rotary valve is also connected to iron powder sack filling machine, it is characterised in that: in the roasting of described roaster discharging opening
Connect one section of intake stack on the brown iron oxide conveyance conduit that stove rotary valve bottom is connected, enter at this
Being shaped with air inlet on the tube wall of wind pipeline, this intake stack is shaped with horizontal-extending end, prolongs in its level
The axial end portion stretching end offers wind-supplying mouth, installs a baffle plate on this wind-supplying mouth.
A kind of acid regeneration station the most according to claim 1 brown iron oxide cooling down processing system,
It is characterized in that: described baffle plate is sideboard, the upper end of this sideboard and intake stack
Elongated end tube wall hinge load connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343672.1A CN105836810B (en) | 2016-05-20 | 2016-05-20 | A kind of acid regeneration station brown iron oxide cooling down processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343672.1A CN105836810B (en) | 2016-05-20 | 2016-05-20 | A kind of acid regeneration station brown iron oxide cooling down processing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105836810A true CN105836810A (en) | 2016-08-10 |
| CN105836810B CN105836810B (en) | 2017-06-16 |
Family
ID=56593337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610343672.1A Active CN105836810B (en) | 2016-05-20 | 2016-05-20 | A kind of acid regeneration station brown iron oxide cooling down processing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN105836810B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102151A (en) * | 2019-03-29 | 2019-08-09 | 中冶南方工程技术有限公司 | Energy saving and environment friendly oxidate powder transportation system and its operational method in spray roasting |
| CN114162873A (en) * | 2021-12-03 | 2022-03-11 | 鞍山创鑫环保科技股份有限公司 | Method for reducing chloride ion content in iron oxide red after roasting of pickling waste liquid |
| CN116889773A (en) * | 2023-09-08 | 2023-10-17 | 张家港市金帆环保科技有限公司 | Plastic plate dust remover |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110158869A1 (en) * | 2008-06-19 | 2011-06-30 | Sms Siemag Aktiengesellschaft | Processing method for recovering iron oxide and hydrochloric acid |
| CN102674250A (en) * | 2012-04-28 | 2012-09-19 | 佛山津西金兰冷轧板有限公司 | Waste acid recovery and treatment device |
| CN202508889U (en) * | 2012-04-10 | 2012-10-31 | 湖北全阳磁性材料制造有限公司 | High-temperature purification equipment for acid washing of iron oxide red |
| CN205773425U (en) * | 2016-05-20 | 2016-12-07 | 天津市腾源环保科技有限公司 | A kind of have the acid regeneration station brown iron oxide cooling down processing system mending wind function |
-
2016
- 2016-05-20 CN CN201610343672.1A patent/CN105836810B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110158869A1 (en) * | 2008-06-19 | 2011-06-30 | Sms Siemag Aktiengesellschaft | Processing method for recovering iron oxide and hydrochloric acid |
| CN202508889U (en) * | 2012-04-10 | 2012-10-31 | 湖北全阳磁性材料制造有限公司 | High-temperature purification equipment for acid washing of iron oxide red |
| CN102674250A (en) * | 2012-04-28 | 2012-09-19 | 佛山津西金兰冷轧板有限公司 | Waste acid recovery and treatment device |
| CN205773425U (en) * | 2016-05-20 | 2016-12-07 | 天津市腾源环保科技有限公司 | A kind of have the acid regeneration station brown iron oxide cooling down processing system mending wind function |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102151A (en) * | 2019-03-29 | 2019-08-09 | 中冶南方工程技术有限公司 | Energy saving and environment friendly oxidate powder transportation system and its operational method in spray roasting |
| CN110102151B (en) * | 2019-03-29 | 2022-04-08 | 中冶南方工程技术有限公司 | Energy-saving and environment-friendly oxide powder conveying system in spray roasting and operation method thereof |
| CN114162873A (en) * | 2021-12-03 | 2022-03-11 | 鞍山创鑫环保科技股份有限公司 | Method for reducing chloride ion content in iron oxide red after roasting of pickling waste liquid |
| CN114162873B (en) * | 2021-12-03 | 2023-12-05 | 鞍山创鑫环保科技股份有限公司 | Method for reducing chloride ion content in iron oxide red after roasting pickling waste liquid |
| CN116889773A (en) * | 2023-09-08 | 2023-10-17 | 张家港市金帆环保科技有限公司 | Plastic plate dust remover |
| CN116889773B (en) * | 2023-09-08 | 2023-11-21 | 张家港市金帆环保科技有限公司 | Plastic plate dust remover |
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| Publication number | Publication date |
|---|---|
| CN105836810B (en) | 2017-06-16 |
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