CN208586217U - A kind of system and device using chromium slag production calcium magnesium phosphate - Google Patents
A kind of system and device using chromium slag production calcium magnesium phosphate Download PDFInfo
- Publication number
- CN208586217U CN208586217U CN201820604739.7U CN201820604739U CN208586217U CN 208586217 U CN208586217 U CN 208586217U CN 201820604739 U CN201820604739 U CN 201820604739U CN 208586217 U CN208586217 U CN 208586217U
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- China
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- water quenching
- outlet
- melt
- smelting furnace
- chromium slag
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Abstract
The utility model provides a kind of system and device using chromium slag production calcium magnesium phosphate, including smelting furnace, water quenching pool, draining field, drying equipment, grinding device, dust-extraction unit and packing device, the smelting furnace includes feed inlet, ferrochrome outlet, melt outlet and air outlet, the melt of melt outlet outflow can flow directly into water quenching pool below, and draining field is set between water quenching pool and drying setting；It is provided with promotion conveyer above the water quenching pool, draining field, drying equipment, the thick fertilizer after draining in draining field can be conveyed into the drying equipment by the fluffy consolidation melt conveying formed after melt water quenching in water quenching pool to draining field；The drying equipment connects the grinding device and dust-extraction unit, and the grinding device connects packing device.Chromium slag for comprehensive can be utilized, be turned harm into good by the present apparatus, not only increase economic benefit, also produce good environmental benefit.
Description
Technical field
The utility model relates to field for the treatment of of solid waste, in particular to a kind of special disposal solid waste is simultaneously recycled
The device system utilized.
Background technique
Chromium slag divides chemical chromium slag and metallurgical chromium slag, and metallurgical chromium slag is maximum with smelting high carbon ferrochrome amount, and national annual emissions are big
There are about 5,000,000 tons.Chemical chromium slag contains a large amount of Cr VIs, although metallurgical chromium slag itself is free of Cr VI, contains 5 percent
Above chrome green and acidic materials contact can also generate Cr VI.Cr VI easily leads to dermatitis, ulcer and internal organs
Damage, or even there is carcinogenesis, belong to danger wastes.Institute is right, for waste residue caused by smelting high carbon ferrochrome, if without
It crosses effective ways removing toxic substances to administer, long-term stack equally would seriously pollute the environment, and be detrimental to health.
Currently, countries in the world mainly carry out removing toxic substances improvement to the processing of chromium slag produced by smelting high carbon ferrochrome, to prevent
Its pollution to environment, including dry detoxified and wet method detoxifcation two major classes.Effective use for chromium slag, the prior art are related to very
It is few, by the way of it is also more single.Publication No. CN207120123U utility model patent discloses " for non-calcium chromium of polishing
The device of slag production 15Cr colour alloy-steel plate " provides a kind of dedicated unit that colored alloy-steel plate is produced using chromium slag,
By in the way of carry out separation and recovery processing.
In the production process of calcium magnesium phosphate, serpentine and dolomite play fluxing action, mentioning with magnesium silicon ratio in furnace
High and content of magnesia increase, furnace charge fusing point reduce, and material residue viscosity is small, good fluidity, high conversion rate of product.Study table
Bright, the same serpentine of chromium slag, the component of dolomite are close, and fluxing action can be equally played in blast furnace.MgO, CaO in chromium slag,
SiO2It can be utilized, other materials will not have a adverse impact to calcium magnesium phosphate.
How chromium slag is more efficiently handled, can on the one hand avoid it to environmental hazard, it on the other hand can be effectively sharp
Value product is produced with its above-mentioned characteristic, is always that this field needs to be paid attention to and solved the problems, such as.
Utility model content
The utility model provides a kind of system and device using chromium slag production calcium magnesium phosphate, can be using in chromium slag
The effective ingredients such as MgO, CaO, SiO produce the product that calcium magnesium phosphate, ferrochrome etc. have higher industrial value, simultaneously as flux
Also the threat that chromium slag may cause environment can be effectively eliminated.The technical solution adopted in the utility model is:
A kind of system and device using chromium slag production calcium magnesium phosphate, including smelting furnace, water quenching pool, draining field, drying equipment, powder
Crushing device, dust-extraction unit and packing device, the smelting furnace includes feed inlet, ferrochrome outlet, melt exports and air outlet, described molten
The melt of material outlet outflow can flow directly into water quenching pool below, and draining field is set between water quenching pool and drying equipment；
It is provided with promotion conveyer above the water quenching pool, draining field, drying equipment, it can be by shape after melt water quenching in water quenching pool
At fluffy consolidation melt conveying to draining field, the thick fertilizer after draining in draining field is conveyed into the drying equipment；It is described
Drying equipment connects the grinding device and dust-extraction unit, and the grinding device connects packing device.
It further, is fireproof brick inner lining in the interior melter walls, top sets feed inlet, and ferrochrome outlet is set to the bottom of smelting furnace
Portion, melt outlet and air outlet are set to the other side of furnace charge mouth, and air outlet is placed in melt outlet top；At the top of smelting furnace
Exhaust gases passes are additionally provided with, which accesses the drying equipment, and material in smelting furnace can be fused to the flue gas of generation as institute
State drying equipment heat source.
Further, the conveyer that promoted uses the fishing material driving equipped with grab bucket；The grinding device uses ball milling
Machine；The drying equipment uses rotary drum drying machine, connects the packing device by discharge port；Air outlet connection blower and
Oxygenerator.
Further, the dust-extraction unit includes alkali cleaning structure, water curtain dedusting structure, and the water curtain dedusting structure is connected with
Discharge outlet.
The beneficial effects of the utility model are that the present apparatus can make raw material using chromium slag, are synthesized using thermal decomposition method
Calcium magnesium phosphate, moreover it is possible to produce the ferrochrome for accounting for material ratio (0.5-1) %, reaction process is simple, easy to operate.Using the present apparatus
When, harmful exhaust discharges after the cooling recovery processing of depth, and sulphur-containing exhaust gas discharges after Alkali absorption is handled.Industrial water closing follows
Ring not outlet.Therefore, chromium slag for comprehensive can be utilized, is turned harm into good by the present apparatus, not only increased economic benefit, also generate
Good environmental benefit.
Detailed description of the invention
Fig. 1 is the principles of the present invention schematic diagram；
In this figure:
1- smelting furnace, 1-1- fireproof brick inner lining, 2- feed inlet, 3- air outlet, the outlet of 4- ferrochrome, the outlet of 5- melt, 6- blower
Air inlet, 7- oxygenerator air inlet, 8- water quenching pool, 9- fishing material driving, 10- grab bucket, 11- draining field, 12- exhaust gases passes, 13- turn
Cylinder drier, 14- ball mill, 15- discharge port, 16- dust-extraction unit, 17- discharge outlet, 18- are slightly fertile.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1, the system and device of the utility model includes smelting furnace 1, water quenching pool 8, draining field 11, rotary drum drying machine
13, ball mill 14, dust-extraction unit 16, air supply device and packing device.Air supply device sets up air inlet 6 and oxygenerator air inlet separately
Mouth 7, is separately connected blower and oxygenerator, can be provided by the air outlet 3 of smelting furnace 1 for smelting furnace and sufficiently fuse required oxygen；Institute
Stating 1 inner wall of smelting furnace is fireproof brick inner lining 1-1, and top sets feed inlet 2, and the bottom of smelting furnace 1 is equipped with ferrochrome outlet 4, and melt exports 5 Hes
Air outlet 3 is set to the other side of furnace charge mouth 2, and air outlet 3 is placed in 5 top of melt outlet；Cigarette is additionally provided at the top of smelting furnace
Gas channel 12, the exhaust gases passes access rotary drum drying machine 13, and the flue gas that material fuses generation in smelting furnace passes through the exhaust gases passes
12 provide heat source for rotary drum drying machine 13.
Smelting furnace 1 is added by feed inlet 2 after treatment in ore raw materials and chromium slag, heats and fuses in smelting furnace 1, generates molten
Material.The melt that the melt outlet 5 is flowed out flows directly into water quenching pool 8 below, and draining field 11 is set to 8 He of water quenching pool
Between rotary drum drying machine 13；Setting is equipped with the fishing material of grab bucket 10 above the water quenching pool 8, draining field 11, rotary drum drying machine 13
Driving 9, can be by fluffy consolidation melt conveying that melt in water quenching pool 8 is formed after water quenching to draining field 11, by draining field
Thick fertile 18 after draining in 11 are conveyed into rotary drum drying machine 13；The rotary drum drying machine 13 connects the ball mill 14 and dedusting dress
16 are set, finished product calcium magnesium phosphate is sent into packing device by discharge port 15 by the ball mill 14.The dust-extraction unit 16 includes alkali
Structure, water curtain dedusting structure are washed, the dust-extraction unit 16 is connected with discharge outlet 17, and harmful exhaust remains after dust-extraction unit 16
Remaining vapor is discharged by discharge outlet 17.
Claims (4)
1. a kind of system and device using chromium slag production calcium magnesium phosphate, including smelting furnace, water quenching pool, draining field, drying equipment, crushing
Device, dust-extraction unit and packing device, which is characterized in that the smelting furnace includes feed inlet, ferrochrome outlet, melt outlet and air-supply
Mouthful, the melt of melt outlet outflow can flow directly into water quenching pool below, and draining field is set to water quenching pool and drying
Between equipment；It is provided with promotion conveyer above the water quenching pool, draining field, drying equipment, can will be melted in water quenching pool
Thick fertilizer after draining in draining field is conveyed into the drying to draining field by the fluffy consolidation melt conveying formed after material water quenching
Equipment；The drying equipment connects the grinding device and dust-extraction unit, and the grinding device connects packing device.
2. a kind of system and device using chromium slag production calcium magnesium phosphate as described in claim 1, which is characterized in that the smelting furnace
Feed inlet be set to above smelting furnace, ferrochrome outlet is set to the bottom of smelting furnace, and melt outlet and air outlet are set to furnace charge mouth
The other side, air outlet are placed in melt outlet top；Exhaust gases passes are additionally provided at the top of smelting furnace, exhaust gases passes access drying is set
It is standby, material in smelting furnace can be fused to the flue gas of generation as drying equipment heat source.
3. a kind of system and device using chromium slag production calcium magnesium phosphate as described in any claim in claims 1 or 2,
It is characterized in that, the conveyer that promoted uses the fishing material driving equipped with grab bucket；The grinding device uses ball mill；The baking
Dry equipment uses rotary drum drying machine, connects the packing device by discharge port；The air outlet connection blower and oxygenerator.
4. a kind of system and device using chromium slag production calcium magnesium phosphate as claimed in claim 3, which is characterized in that the dedusting
Device includes alkali cleaning structure, water curtain dedusting structure, and the dust-extraction unit is connected with discharge outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820604739.7U CN208586217U (en) | 2018-04-25 | 2018-04-25 | A kind of system and device using chromium slag production calcium magnesium phosphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820604739.7U CN208586217U (en) | 2018-04-25 | 2018-04-25 | A kind of system and device using chromium slag production calcium magnesium phosphate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208586217U true CN208586217U (en) | 2019-03-08 |
Family
ID=65533585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820604739.7U Expired - Fee Related CN208586217U (en) | 2018-04-25 | 2018-04-25 | A kind of system and device using chromium slag production calcium magnesium phosphate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208586217U (en) |
-
2018
- 2018-04-25 CN CN201820604739.7U patent/CN208586217U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190308 |