CN103408182A - Process for deoiling residual ammonia water - Google Patents
Process for deoiling residual ammonia water Download PDFInfo
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- CN103408182A CN103408182A CN2013103741379A CN201310374137A CN103408182A CN 103408182 A CN103408182 A CN 103408182A CN 2013103741379 A CN2013103741379 A CN 2013103741379A CN 201310374137 A CN201310374137 A CN 201310374137A CN 103408182 A CN103408182 A CN 103408182A
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- remained ammonia
- ammonia
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- oil removing
- deoiling
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Abstract
The invention relates to a process for deoiling residual ammonia water. The process comprises three steps, namely a deoiling step, a standing separation step and a distillation step, wherein the deoiling step particularly comprises the following steps of: (1) first-stage deoiling, (2) second-stage deoiling and (3) third-stage deoiling; the standing separation step comprises the following steps that: (1) oil substances removed from a residual ammonia water overhead tank and a deoiler enter an underground tank along a pipeline so that the separation of the residual ammonia water and the oil substances is completed; (2) the oil substances which enter the underground tank are continuously pumped by a tar pump and finally enter a mechanized clarifying tank so that next circulation is realized. The process disclosed by the invention can be used for effectively reducing the oil content of the residual ammonia water, enhancing the operation stability of equipment and preventing the blockage of the deposited oil residues of the equipment and has the advantages of shortened process path, saved delivery cost, simple process, easiness for operation, small occupied area and low operating cost.
Description
Technical field
The present invention relates to the oil removing process in a kind of coking industry, particularly a kind of remained ammonia oil removing process that can reduce coking chemical waste water oleaginousness and energy expenditure.
Background technology
At metallurgy industry especially coking industry, wastewater treatment is the crucial environment-protective process that enterprise produces.The waste water main raw material of coking production is the remained ammonia of mixed coal water transform, remained ammonia is because the technological property of itself has determined a large amount of oily substance of its oil-containing, especially the coke oven negative pressure is coaling, stamp-charging coke production very easily causes in remained ammonia and contain a large amount of suspended substances, make a large amount of oils mix and be difficult to separate with water, cause the oleaginousness in remained ammonia to increase, cause remained ammonia conveying, treatment facility to stop up serious, not only be difficult to cleaning, also can affect the balance of waste water system.
Summary of the invention
Technical problem solved by the invention has been to provide a kind of remained ammonia oil removing process, this invention can effectively reduce the oleaginousness in remained ammonia, improve stable equipment operation, avoid the equipment alluvial dregs of fat to stop up, and processing route shortens, save and carry cost, simple for process, floor space is little, and running cost is low.
For solving the problems of the technologies described above, a kind of remained ammonia oil removing process of the present invention, is characterized in that, comprises the steps:
Step 1: oil removing
(1) the ammoniacal liquor flowing full in mechanical settling tank is to the ammoniacal liquor medial launder, the cyclic ammonia water pump is extracted ammoniacal liquor out in the ammoniacal liquor medial launder, a part flow to coke oven along back of pipeline and uses as cyclic ammonia water, and another part is directly delivered to the high groove of putting of remained ammonia as remained ammonia along pipeline and carried out the standing oil removing of the first step;
When (2) entering the high remained ammonia of putting in groove of remained ammonia and reach the flowing full state, remained ammonia enters the remained ammonia medial launder along pipeline and carries out the standing oil removing in the second stage;
(3) entering remained ammonia in the remained ammonia medial launder is evacuated to oil eliminator through the remained ammonia pump and carries out the third stage and filter oil removing;
Step 2: standing separation
(1) after by above-mentioned deoiling step, realizing that the de-oiling of remained ammonia is processed, the high oily substance removed in groove and oil eliminator of putting of remained ammonia enters in sloptank along pipeline, thereby realizes separating of remained ammonia and oily substance;
(2) enter oily substance in sloptank and by the tar pump, extracted out endlessly, finally enter mechanical settling tank, realize next circulation;
Step 3: distillation
The less remained ammonia of oleaginousness obtained through above-mentioned two steps, finally enter in ammonia steaming system and carry out ammonia still process and process and obtain the ammonia that purity is higher by pipeline.
As optimization, the remained ammonia described in step 1 is high to be put groove and remained ammonia medial launder produce in the oil removing process system tail gas and along pipeline, enters coal gas system, the completion system vent gas treatment.
The invention has the beneficial effects as follows:
1. a kind of remained ammonia oil removing process of the present invention is taked the novel process of oil removing-standing-distillation to remained ammonia, can effectively reduce the oleaginousness in remained ammonia, oleaginousness can be reduced more than 80%, extend simultaneously the oil removal plant life-span, shorten operational path, effectively reduce the remained ammonia processing cost, improve stability, the high efficiency of remained ammonia treatment system.
2. the present invention is specially adapted to the coking production Waste Water Treatment, and the core technology of this technique is to adopt oily water separation principle, water system filtering technique to make profit effectively separate, and effectively reduces the coking chemical waste water oleaginousness, avoids sewage treatment equipment to stop up.
3. this technique is applicable to the residual coking ammonia water treatment system, has environmental benefit and social benefit preferably.
The accompanying drawing explanation
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is process flow sheet of the present invention;
Fig. 2 is flowage structure schematic diagram of the present invention;
Embodiment
As shown in Figure 1, a kind of remained ammonia oil removing process of the present invention, it comprises the steps:
Step 1:
1. oil removing
(1) the ammoniacal liquor flowing full in mechanical settling tank is to the ammoniacal liquor medial launder, the cyclic ammonia water pump is extracted ammoniacal liquor out in the ammoniacal liquor medial launder, a part flow to coke oven along back of pipeline and uses as cyclic ammonia water, and another part is directly delivered to the high groove of putting of remained ammonia as remained ammonia along pipeline and carried out the standing oil removing of the first step;
When (2) entering the high remained ammonia of putting in groove of remained ammonia and reach the flowing full state, remained ammonia enters the remained ammonia medial launder along pipeline and carries out the standing oil removing in the second stage;
(3) entering remained ammonia in the remained ammonia medial launder is evacuated to oil eliminator through the remained ammonia pump and carries out the third stage and filter oil removing;
2. standing separation
(1) after by above-mentioned deoiling step, realizing that the de-oiling of remained ammonia is processed, the high oily substance removed in groove and oil eliminator of putting of remained ammonia enters in sloptank along pipeline, thereby realizes separating of remained ammonia and oily substance.
(2) enter oily substance in sloptank and by the tar pump, extracted out endlessly, finally enter mechanical settling tank, realize next circulation.
3. distillation
The less remained ammonia of oleaginousness obtained through above-mentioned two steps, finally enter in ammonia steaming system and carry out ammonia still process and process and obtain the ammonia that purity is higher by pipeline;
As optimization, the remained ammonia described in step 1 is high to be put groove and remained ammonia medial launder produce in the oil removing process system tail gas and along pipeline, enters coal gas system, the completion system vent gas treatment.Can guarantee that so whole treating processes is discharged in atmosphere without system tail gas outward.
Except the described technical characterictic of above-mentioned specification sheets, be the known technology of those skilled in the art.
Claims (2)
1. a remained ammonia oil removing process, is characterized in that, comprises the steps:
Step 1: oil removing
(1) the ammoniacal liquor flowing full in mechanical settling tank is to the ammoniacal liquor medial launder, the cyclic ammonia water pump is extracted ammoniacal liquor out in the ammoniacal liquor medial launder, a part flow to coke oven along back of pipeline and uses as cyclic ammonia water, and another part is directly delivered to the high groove of putting of remained ammonia as remained ammonia along pipeline and carried out the standing oil removing of the first step;
When (2) entering the high remained ammonia of putting in groove of remained ammonia and reach the flowing full state, remained ammonia enters the remained ammonia medial launder along pipeline and carries out the standing oil removing in the second stage;
(3) entering remained ammonia in the remained ammonia medial launder is evacuated to oil eliminator through the remained ammonia pump and carries out the third stage and filter oil removing;
Step 2: standing separation
(1) after by above-mentioned deoiling step, realizing that the de-oiling of remained ammonia is processed, the high oily substance removed in groove and oil eliminator of putting of remained ammonia enters in sloptank along pipeline, thereby realizes separating of remained ammonia and oily substance;
(2) enter oily substance in sloptank and by the tar pump, extracted out endlessly, finally enter mechanical settling tank, realize next circulation;
Step 3: distillation
The less remained ammonia of oleaginousness obtained through above-mentioned two steps, finally enter in ammonia steaming system and carry out ammonia still process and process and obtain the ammonia that purity is higher by pipeline.
2. a kind of remained ammonia oil removing process as claimed in claim 1, is characterized in that, the remained ammonia described in step 1 is high to be put groove and remained ammonia medial launder produce in the oil removing process system tail gas and along pipeline, enter coal gas system, the completion system vent gas treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103741379A CN103408182A (en) | 2013-08-23 | 2013-08-23 | Process for deoiling residual ammonia water |
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| CN2013103741379A CN103408182A (en) | 2013-08-23 | 2013-08-23 | Process for deoiling residual ammonia water |
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| CN103408182A true CN103408182A (en) | 2013-11-27 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964542A (en) * | 2014-04-21 | 2014-08-06 | 鞍钢股份有限公司 | Tar removing method for surplus ammonia water |
| CN105271305A (en) * | 2015-09-29 | 2016-01-27 | 山东钢铁股份有限公司 | Method for treating ammonia water obtained after ammonia distillation of residual ammonia water |
| CN105417629A (en) * | 2015-12-25 | 2016-03-23 | 新兴铸管股份有限公司 | Residual ammonia water oil-removal groove |
| CN106219672A (en) * | 2016-09-29 | 2016-12-14 | 成都安信德环保设备有限公司 | A kind of deoiling method and degreasing unit |
| CN110846089A (en) * | 2019-12-18 | 2020-02-28 | 中冶焦耐(大连)工程技术有限公司 | Deep treatment device and process for tar in residual ammonia water in coking production |
| CN115521006A (en) * | 2022-06-27 | 2022-12-27 | 江苏达诺尔科技股份有限公司 | Method for effectively improving ammonia water through demulsifier |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964542A (en) * | 2014-04-21 | 2014-08-06 | 鞍钢股份有限公司 | Tar removing method for surplus ammonia water |
| CN105271305A (en) * | 2015-09-29 | 2016-01-27 | 山东钢铁股份有限公司 | Method for treating ammonia water obtained after ammonia distillation of residual ammonia water |
| CN105417629A (en) * | 2015-12-25 | 2016-03-23 | 新兴铸管股份有限公司 | Residual ammonia water oil-removal groove |
| CN106219672A (en) * | 2016-09-29 | 2016-12-14 | 成都安信德环保设备有限公司 | A kind of deoiling method and degreasing unit |
| CN106219672B (en) * | 2016-09-29 | 2023-03-14 | 成都安信德环保设备有限公司 | Oil removing method and oil removing device |
| CN110846089A (en) * | 2019-12-18 | 2020-02-28 | 中冶焦耐(大连)工程技术有限公司 | Deep treatment device and process for tar in residual ammonia water in coking production |
| CN115521006A (en) * | 2022-06-27 | 2022-12-27 | 江苏达诺尔科技股份有限公司 | Method for effectively improving ammonia water through demulsifier |
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Application publication date: 20131127 |