CN107200447A - A kind of pickling iron and steel sludge quickly improves the resource utilization method after iron-holder - Google Patents
A kind of pickling iron and steel sludge quickly improves the resource utilization method after iron-holder Download PDFInfo
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- CN107200447A CN107200447A CN201710469986.0A CN201710469986A CN107200447A CN 107200447 A CN107200447 A CN 107200447A CN 201710469986 A CN201710469986 A CN 201710469986A CN 107200447 A CN107200447 A CN 107200447A
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- iron
- mixture
- holder
- pickling
- regeneration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/203—Iron or iron compound
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
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- Compounds Of Iron (AREA)
Abstract
The resource utilization method after iron-holder is quickly improved the invention provides a kind of pickling iron and steel sludge, is comprised the following steps：The iron hydroxide sludge produced in pickling waste waters and after press filtration and ferrous salt solution are added in agitator tank, are stirred；Adjust the acid-base value of mixture in agitator tank, pH value to 69；The mixture stirred is transferred in oxidation pond and carries out oxidation reaction；After the completion of reaction, mixture is transferred to heating pond, vapour heating generation regeneration ferroso-ferric oxide is passed through；The regeneration ferroso-ferric oxide mixed material of generation is transferred into cooling bay to be cooled down；Press filtration is carried out after cooling, black regeneration Fe 3 O 4 magnetic miberal powder pug is obtained；The drainage produced in pressure-filtering process is delivered to agitator tank and carries out cycling and reutilization.The present invention has technique simple, easy to operate, safe and reliable, and treatment effeciency is high, no secondary environmental pollution, the advantages of pollution sources become regenerated resources after lifting iron-holder.
Description
Technical field
The invention belongs to steel solid hazardous waste processing technology field, more particularly to a kind of pickling iron and steel sludge are quick
Improve the resource utilization method after iron-holder.
Background technology
Substantial amounts of pickling waste waters can be produced in steel processing acid cleaning process, because acid waste water yield is big, and concentration
Low, generally, enterprise can take the method for acid-base neutralization to be handled.
The processing method of acid-base neutralization can produce substantial amounts of sludge, and the particle diameter of sludge is mostly in 1-100 nanometer ranges.But
It is that sludge iron-holder is very low after press filtration, without actual value, and because surface dewatering weathering is easy when stacking for a long time
Form tiny particulate to get into the air, form haze, cause air pollution.
In addition, related environmental administration is also made that regulation, the sludge produced after acid-base neutralization is listed in danger wastes,
Unprocessed is arbitrarily to discharge.Such situation, according to environmental requirement enterprise in the premise for not possessing Treatment of Sludge ability
Under, sludge must hand over professional treatment producer to handle sludge, certainly, and great number transport can be produced during transfer
Expense, enterprise will also undertake Treatment of Sludge expense.Also the presence of the expense of great number Just because of this, causes Some Enterprises illegal
Arrange steathily so that pollution environmental phenomenon happens occasionally.
Also Some Enterprises carry out landfill operation to sludge, but sludge is in soil after long time integration, certainly will will be right
Soil is caused to deteriorate and destroyed, and influences soil texture, or even has influence on underground water, further serious to the security presence of biological chain
Threat, cause severe contamination to soil and earth environment.
Therefore, because the problem of facing above-mentioned in the prior art, how in the case where guarantee is inexpensive, easy to operate,
It is those skilled in that art's technical problem urgently to be resolved hurrily to carry out safe handling to pickling iron and steel sludge.
The content of the invention
The resource utilization method after iron-holder is quickly improved it is an object of the invention to provide a kind of pickling iron and steel sludge,
The problems such as aiming to solve the problem that pickling iron and steel Treatment of Sludge cost height in the prior art, complex operation.
The present invention is achieved in that
A kind of pickling iron and steel sludge quickly improves the resource utilization method after iron-holder, comprises the following steps：
(1) the iron hydroxide sludge produced in pickling waste waters and after press filtration and ferrous salt solution are added in agitator tank,
Mixed；
(2) acid-base value of mixture in agitator tank is adjusted, the pH value of mixture is adjusted；
(3) mixture being well mixed in step (2) is transferred in oxidation pond and is passed through air progress oxidation reaction；
(4) mixture that oxidation is completed in step (3) is transferred to heating pond and carries out heating reaction, generation regeneration four is aoxidized
Three-iron；
(5) waste gas produced in step (4) is transported to waste gas absorption tower and handled；
(6) after the completion of step (4) heating reaction, the regeneration ferroso-ferric oxide of generation is transferred to cooling bay and cooled down；
(7) after cooling down, press filtration is carried out, black regeneration Fe 3 O 4 magnetic miberal powder pug is obtained；
(8) drainage produced in step (7) pressure-filtering process is delivered to agitator tank and carries out cycling and reutilization.
It is preferred that, the middle pH value for adjusting mixture of step (2) to 6-9.
It is preferred that, the heating-up temperature of the heating reaction in step (4) is 60-100 DEG C, and mixture color to be seen is black
Stop heating during color.
It is preferred that, the black regeneration Fe 3 O 4 magnetic miberal powder pug iron-holder obtained in step (7) is 50%-
70%.
The beneficial effects of the present invention are：
1st, the processing method technique that the present invention is provided is simple, easy to operate, safe and reliable, and enterprise can be voluntarily to steel acid
Wash sludge to be handled, save freight and processing cost, mitigate the burden of enterprise significantly.
2nd, the present invention processing method that provides does not produce waste residue, waste water, waste gas and leaked, and greatly reduces two to environment
Secondary pollution, the source treatment in situ that can be produced in hazardous waste.
3rd, the processing method that the present invention is provided can regenerate the magnetic mineral fine pug containing ferroso-ferric oxide, ferroso-ferric oxide
Magnetic mineral fine can apply to smelting iron and steel, can also add raw material as cement, can also be used to make magnetic material, reach
The purpose turned waste into wealth, had both avoided the pollution of hazardous waste outward transport and processing to environment, and pollution sources are become into production-goods again
Source, realizes the environment-protective circulating economic effect of clean manufacturing.
Brief description of the drawings
Fig. 1 is the process chart of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1：
A kind of pickling iron and steel sludge as shown in Figure 1 quickly improves the resource utilization method after iron-holder, including following
Step：
(1) the iron hydroxide sludge produced in pickling waste waters and after press filtration and ferrous salt solution are added in agitator tank,
Mixed；
(2) acid-base value of mixture in agitator tank is adjusted, the pH value of regulation mixture is 6；
(3) mixture being well mixed in step (2) is transferred in oxidation pond and is passed through air progress oxidation reaction；
(4) mixture that oxidation is completed in step (3) is transferred to heating pond and carries out heating reaction, generation regeneration four is aoxidized
Three-iron, specific mode of heating heats for combustion and steam, and heating-up temperature is 100 DEG C, and mixture color to be seen is stopped when being black
Only heat；
(5) waste gas produced in step (4) is transported to waste gas absorption tower and handled；
(6) after the completion of step (4) heating reaction, the regeneration ferroso-ferric oxide of generation is transferred to cooling bay and cooled down；
(7) after sufficiently cool, plate compression is carried out, black regeneration Fe 3 O 4 magnetic miberal powder pug is obtained；
(8) drainage produced in step (7) pressure-filtering process is delivered to agitator tank and carries out cycling and reutilization.
The black obtained using above-mentioned processing method regenerates Fe 3 O 4 magnetic miberal powder pug iron-holder as 62%.
Embodiment 2：
A kind of pickling iron and steel sludge as shown in Figure 1 quickly improves the resource utilization method after iron-holder, including following
Step：
(1) the iron hydroxide sludge produced in pickling waste waters and after press filtration and ferrous salt solution are added in agitator tank,
Mixed；
(2) acid-base value of mixture in agitator tank is adjusted, the pH value of regulation mixture is 7；
(3) mixture being well mixed in step (2) is transferred in oxidation pond and is passed through air progress oxidation reaction；
(4) mixture that oxidation is completed in step (3) is transferred to heating pond and carries out heating reaction, generation regeneration four is aoxidized
Three-iron, specific mode of heating heats for combustion and steam, and heating-up temperature is 85 DEG C, and mixture color to be seen stops when being black
Heating；
(5) waste gas produced in step (4) is transported to waste gas absorption tower and handled；
(6) after the completion of step (4) heating reaction, the regeneration ferroso-ferric oxide of generation is transferred to cooling bay and cooled down；
(7) after sufficiently cool, plate compression is carried out, black regeneration Fe 3 O 4 magnetic miberal powder pug is obtained；
(8) drainage produced in step (7) pressure-filtering process is delivered to agitator tank and carries out cycling and reutilization.
The black obtained using above-mentioned processing method regenerates Fe 3 O 4 magnetic miberal powder pug iron-holder as 70%.
Embodiment 3：
A kind of pickling iron and steel sludge as shown in Figure 1 quickly improves the resource utilization method after iron-holder, including following
Step：
(1) the iron hydroxide sludge produced in pickling waste waters and after press filtration and ferrous salt solution are added in agitator tank,
Mixed；
(2) acid-base value of mixture in agitator tank is adjusted, the pH value of regulation mixture is 8；
(3) mixture being well mixed in step (2) is transferred in oxidation pond and is passed through air progress oxidation reaction；
(4) mixture that oxidation is completed in step (3) is transferred to heating pond and carries out heating reaction, generation regeneration four is aoxidized
Three-iron, specific mode of heating heats for combustion and steam, and heating-up temperature is 75 DEG C, and mixture color to be seen stops when being black
Heating；
(5) waste gas produced in step (4) is transported to waste gas absorption tower and handled；
(6) after the completion of step (4) heating reaction, the regeneration ferroso-ferric oxide of generation is transferred to cooling bay and cooled down；
(7) after sufficiently cool, plate compression is carried out, black regeneration Fe 3 O 4 magnetic miberal powder pug is obtained；
(8) drainage produced in step (7) pressure-filtering process is delivered to agitator tank and carries out cycling and reutilization.
The black obtained using above-mentioned processing method regenerates Fe 3 O 4 magnetic miberal powder pug iron-holder as 56%.
Embodiment 4：
A kind of pickling iron and steel sludge as shown in Figure 1 quickly improves the resource utilization method after iron-holder, including following
Step：
(1) the iron hydroxide sludge produced in pickling waste waters and after press filtration and ferrous salt solution are added in agitator tank,
Mixed；
(2) acid-base value of mixture in agitator tank is adjusted, the pH value of regulation mixture is 9；
(3) mixture being well mixed in step (2) is transferred in oxidation pond and is passed through air progress oxidation reaction；
(4) mixture that oxidation is completed in step (3) is transferred to heating pond and carries out heating reaction, generation regeneration four is aoxidized
Three-iron, specific mode of heating heats for combustion and steam, and heating-up temperature is 65 DEG C, and mixture color to be seen stops when being black
Heating；
(5) waste gas produced in step (4) is transported to waste gas absorption tower and handled；
(6) after the completion of step (4) heating reaction, the regeneration ferroso-ferric oxide of generation is transferred to cooling bay and cooled down；
(7) after sufficiently cool, plate compression is carried out, black regeneration Fe 3 O 4 magnetic miberal powder pug is obtained；
(8) drainage produced in step (7) pressure-filtering process is delivered to agitator tank and carries out cycling and reutilization.
The black obtained using above-mentioned processing method regenerates Fe 3 O 4 magnetic miberal powder pug iron-holder as 50%.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, not to present invention protection model
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deform still within protection scope of the present invention that performing creative labour can make.
Claims (4)
1. a kind of pickling iron and steel sludge quickly improves the resource utilization method after iron-holder, it is characterised in that including following step
Suddenly：
(1) the iron hydroxide sludge produced in pickling waste waters and after press filtration and ferrous salt solution are added in agitator tank, carried out
Mix；
(2) acid-base value of mixture in agitator tank is adjusted, the pH value of mixture is adjusted；
(3) mixture being well mixed in step (2) is transferred in oxidation pond and is passed through air progress oxidation reaction；
(4) mixture that oxidation is completed in step (3) is transferred to heating pond and carries out heating reaction, the oxidation three of generation regeneration four
Iron；
(5) waste gas produced in step (4) is transported to waste gas absorption tower and handled；
(6) after the completion of step (4) heating reaction, the regeneration ferroso-ferric oxide of generation is transferred to cooling bay and cooled down；
(7) after cooling down, press filtration is carried out, black regeneration Fe 3 O 4 magnetic miberal powder pug is obtained；
(8) drainage produced in step (7) pressure-filtering process is delivered to agitator tank and carries out cycling and reutilization.
2. a kind of pickling iron and steel sludge as claimed in claim 1 quickly improves the resource utilization method after iron-holder, it is special
Levy and be, the middle pH value for adjusting mixture of step (2) to 6-9.
3. a kind of pickling iron and steel sludge as claimed in claim 1 quickly improves the resource utilization method after iron-holder, it is special
Levy and be, in step (4) heating reaction heating-up temperature be 60-100 DEG C, and mixture color to be seen be black when stop
Heating.
4. a kind of pickling iron and steel sludge as claimed in claim 1 quickly improves the resource utilization method after iron-holder, it is special
Levy and be, the black regeneration Fe 3 O 4 magnetic miberal powder pug iron-holder obtained in step (7) is 50%-70%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710469986.0A CN107200447A (en) | 2017-06-20 | 2017-06-20 | A kind of pickling iron and steel sludge quickly improves the resource utilization method after iron-holder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710469986.0A CN107200447A (en) | 2017-06-20 | 2017-06-20 | A kind of pickling iron and steel sludge quickly improves the resource utilization method after iron-holder |
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| CN107200447A true CN107200447A (en) | 2017-09-26 |
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| CN201710469986.0A Pending CN107200447A (en) | 2017-06-20 | 2017-06-20 | A kind of pickling iron and steel sludge quickly improves the resource utilization method after iron-holder |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109292937A (en) * | 2018-12-09 | 2019-02-01 | 安徽航天环境工程有限公司 | A kind of iron content pickling sludge reuse method |
| CN109399887A (en) * | 2018-12-07 | 2019-03-01 | 中国矿业大学(北京) | A kind of steel rolling pickling waste water sludge recycling processing method |
| WO2020089650A1 (en) * | 2018-11-02 | 2020-05-07 | Darlow Lloyd & Sons Limited | Method and apparatus for treating waste material comprising iron |
| CN112479528A (en) * | 2020-12-14 | 2021-03-12 | 江苏华西节能装备有限公司 | Pickling wastewater sludge regeneration system and treatment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653437A (en) * | 2011-09-20 | 2012-09-05 | 卢玉柱 | Method for treating yellow sludge obtained in neutralization of steel pickling waste water lime |
| CN105601062A (en) * | 2016-01-18 | 2016-05-25 | 卢玉柱 | Method of using sludge neutralized by steel pickling wastewater to prepare yellow soil parent material |
| CN106116004A (en) * | 2016-08-09 | 2016-11-16 | 天津正达科技有限责任公司 | A kind of steel hydrochloric acid pickling effluent resource reclaims and the processing method of zero-emission |
-
2017
- 2017-06-20 CN CN201710469986.0A patent/CN107200447A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653437A (en) * | 2011-09-20 | 2012-09-05 | 卢玉柱 | Method for treating yellow sludge obtained in neutralization of steel pickling waste water lime |
| CN105601062A (en) * | 2016-01-18 | 2016-05-25 | 卢玉柱 | Method of using sludge neutralized by steel pickling wastewater to prepare yellow soil parent material |
| CN106116004A (en) * | 2016-08-09 | 2016-11-16 | 天津正达科技有限责任公司 | A kind of steel hydrochloric acid pickling effluent resource reclaims and the processing method of zero-emission |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020089650A1 (en) * | 2018-11-02 | 2020-05-07 | Darlow Lloyd & Sons Limited | Method and apparatus for treating waste material comprising iron |
| GB2578645B (en) * | 2018-11-02 | 2021-11-24 | Darlow Lloyd & Sons Ltd | Method and apparatus for treating waste material |
| CN109399887A (en) * | 2018-12-07 | 2019-03-01 | 中国矿业大学(北京) | A kind of steel rolling pickling waste water sludge recycling processing method |
| CN109292937A (en) * | 2018-12-09 | 2019-02-01 | 安徽航天环境工程有限公司 | A kind of iron content pickling sludge reuse method |
| CN112479528A (en) * | 2020-12-14 | 2021-03-12 | 江苏华西节能装备有限公司 | Pickling wastewater sludge regeneration system and treatment method |
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Application publication date: 20170926 |