CN102531320A - Processing method of desulfurated waste water residue - Google Patents
Processing method of desulfurated waste water residue Download PDFInfo
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- CN102531320A CN102531320A CN2011104444915A CN201110444491A CN102531320A CN 102531320 A CN102531320 A CN 102531320A CN 2011104444915 A CN2011104444915 A CN 2011104444915A CN 201110444491 A CN201110444491 A CN 201110444491A CN 102531320 A CN102531320 A CN 102531320A
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- waste water
- oven dry
- water residue
- slag
- processing method
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Abstract
The invention discloses a processing method of desulfurated waste water residue. The processing method comprises the following steps: firstly dropping the waste water residue from the sludge to a heated board until the waste water residue can cover up the whole heated board; adjusting a hydraulic lifting device to enable the heated board to tilt and maintain a tilt angle; opening an inlet valve of steam source of a drying device to start drying; after the drying treatment, closing the inlet valve to stop drying and adjusting the hydraulic lifting device again to enable the waste water residue to drop in a gypsum pool; mixing the dried waste water residue dropping in the gypsum pool, and carrying out loadings and unloadings and transferring for times to realize basic and uniform mixing. The processing method provided by the invention maximally utilizes the waste water residue to turn waste into wealth, is scientific and reasonable and environment-friendly, and reasonably utilizes the existing resources without consuming new energy sources. The processing method provided by the invention has obviously economic benefit and social benefit.
Description
Technical field
The present invention relates to desulfurization environmental protection field, be specifically related to a kind of desulfurization wastewater slag treatment process.
Background technology
Wingdale---gypsum method wet desulfurizing process is most widely used in the world a kind of desulfurization technology, and the major advantage of limestone/gypsum method is: the coal scope that is suitable for is wide, desulfuration efficiency is high, the absorption agent utilization ratio is high, operation rate is high, the safety of work is high, sweetening agent-Wingdale source is abundant and cheap.But the shortcoming of limestone/gypsum method also is apparent in view: the initial investment expense is too high, working cost is high, floor space is big, system management operation is complicated, the erosion corrosion phenomenon is comparatively serious, by product-gypsum intractable, waste water are more hard to manage.The waste water slag contains the harmful heavy metal material, environment is produced pollute.
Summary of the invention
The object of the invention provides a kind of desulfurization wastewater slag treatment process; Make it to have overcome difficulty and possibly produce defective such as pollution of dispose of wastewater slag ratio to environment; Be used to realize the comprehensive utilization of waste water slag; Avoid the second investment processing costs, avoid contaminate environment, improve the added value of wet desulfurizing process.
The present invention for realizing the technical scheme that technical purpose adopts is:
The present invention provides a kind of desulfurization wastewater slag treatment process, and this treatment process may further comprise the steps:
A, at first the waste water slag is fallen on the heated sheet from sludge bucket, be paved with whole heated sheet until the waste water slag;
B, adjusting hydraulic lift tilt heated sheet and the maintenance angle of inclination;
C, open the air intake valve in drying unit vapour source, the logical steam heating of serpentine tube begins oven dry;
After d, oven dry are handled, close air intake valve and stop oven dry adjusting hydraulic lift once more, the waste water slag can drop in the gypsum storehouse automatically;
Waste water slag after e, the oven dry of oven dry back drops and in the gypsum storehouse, mixes with gypsum, through repeatedly loading and unloading transhipment elementary mixing is even.
According to above-mentioned desulfurization wastewater slag treatment process, the aperture of air intake valve described in step c size can change the speed of oven dry.
According to above-mentioned desulfurization wastewater slag treatment process, in the steps d after oven dry the water ratio of resulting waste water slag be 5-15%.
According to above-mentioned desulfurization wastewater slag treatment process, mix waste water slag interior foreign matter content in back among the step e less than 50%.
Positive beneficial effect of the present invention:
1, technical scheme of the present invention can thoroughly solve the waste water slag handling problem that produces in the wet fuel gas desulfurizing technology production process; The maximized waste water slag that utilizes; Turn waste into wealth, treatment process of the present invention is scientific and reasonable, environmental protection, rationally utilize existing resource need not consume the new energy.Therefore, the present invention has economic benefit and social benefit significantly.
2, in the waste water slag foreign matter content generally below 50%, very little to the gypsum quality influence, can be used for aspects such as cement setting retarder, building materials of gypsum series of products, chemical fertilizer industry, ceramic decoration material and soil improvement agent thereof.
Embodiment
Below in conjunction with specific embodiment the present invention is described further.
Embodiment 1
Desulfurization wastewater slag treatment process of the present invention, the detailed step of this treatment process is following:
A, the inspection heated sheet firm, no foreign matter;
B, the waste water slag is fallen on the heated sheet from sludge bucket, be paved with whole heated sheet until the waste water slag;
C, open the air intake valve in drying unit vapour source, the logical steam heating of serpentine tube begins oven dry;
After d, oven dry are handled, close air intake valve.The waste water slag is dried reduced viscosity and can be dropped in the gypsum storehouse automatically;
Waste water slag after e, the oven dry of oven dry back drops and in the gypsum storehouse, mixes with gypsum, through repeatedly loading and unloading transhipment elementary mixing is even.
Embodiment 2: basic identical with embodiment 1, difference is:
A, the inspection heated sheet firm, no foreign matter.Regulate hydraulic lift, this device has upwards, downward operating switch, can regulate the heated sheet angle of inclination, makes heated sheet near level;
After d, oven dry are handled, close air intake valve and stop oven dry.To adjusted regulator solution voltage rise falling unit, heated sheet is tilted and maintenance angle of inclination 45 degree, the waste water slag can drop in the gypsum storehouse automatically.
Claims (4)
1. desulfurization wastewater slag treatment process is characterized in that: the treating method comprises following steps:
A, at first the waste water slag is fallen on the heated sheet from sludge bucket, be paved with whole heated sheet until the waste water slag;
B, adjusting hydraulic lift tilt heated sheet and the maintenance angle of inclination;
C, open the air intake valve in drying unit vapour source, the logical steam heating of serpentine tube begins oven dry;
After d, oven dry are handled, close air intake valve and stop oven dry adjusting hydraulic lift once more, the waste water slag can drop in the gypsum storehouse automatically;
Waste water slag after e, the oven dry of oven dry back drops and in the gypsum storehouse, mixes with gypsum, through repeatedly loading and unloading transhipment elementary mixing is even.
2. according to claims 1 said a kind of desulfurization wastewater slag treatment process, it is characterized in that: the aperture of air intake valve described in step c size can change the speed of oven dry.
3. according to claims 1 said a kind of desulfurization wastewater slag treatment process, it is characterized in that: in the steps d after oven dry the water ratio of resulting waste water slag be 5-15%.
4. according to claims 1 said a kind of desulfurization wastewater slag treatment process, it is characterized in that: mix waste water slag interior foreign matter content in back among the step e less than 50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110444491 CN102531320B (en) | 2011-12-23 | 2011-12-23 | Processing method of desulfurated waste water residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110444491 CN102531320B (en) | 2011-12-23 | 2011-12-23 | Processing method of desulfurated waste water residue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102531320A true CN102531320A (en) | 2012-07-04 |
| CN102531320B CN102531320B (en) | 2013-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201110444491 Active CN102531320B (en) | 2011-12-23 | 2011-12-23 | Processing method of desulfurated waste water residue |
Country Status (1)
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| CN (1) | CN102531320B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201010609Y (en) * | 2007-01-26 | 2008-01-23 | 张志霄 | Belt type sludge stirring multilevel secondary steam recycling and drying device |
| CN101708911A (en) * | 2009-11-23 | 2010-05-19 | 苏州凯新分离科技有限公司 | Desulfuration waste water treatment process with membrane method |
| CN101844819A (en) * | 2010-05-21 | 2010-09-29 | 重庆大学 | Spray evaporation treatment method of wet method flue gas desulfurization wastewater in thermal power station |
-
2011
- 2011-12-23 CN CN 201110444491 patent/CN102531320B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201010609Y (en) * | 2007-01-26 | 2008-01-23 | 张志霄 | Belt type sludge stirring multilevel secondary steam recycling and drying device |
| CN101708911A (en) * | 2009-11-23 | 2010-05-19 | 苏州凯新分离科技有限公司 | Desulfuration waste water treatment process with membrane method |
| CN101844819A (en) * | 2010-05-21 | 2010-09-29 | 重庆大学 | Spray evaporation treatment method of wet method flue gas desulfurization wastewater in thermal power station |
Non-Patent Citations (1)
| Title |
|---|
| 崔丽等: "石灰石-石膏湿法脱硫废水的处理", 《吉林电力》, vol. 36, no. 2, 30 April 2008 (2008-04-30) * |
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| Publication number | Publication date |
|---|---|
| CN102531320B (en) | 2013-09-25 |
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