CN102657961B - Tar residue pre-separation and removal process and system in coke oven ammonia water system - Google Patents
Tar residue pre-separation and removal process and system in coke oven ammonia water system Download PDFInfo
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- CN102657961B CN102657961B CN201210178299.0A CN201210178299A CN102657961B CN 102657961 B CN102657961 B CN 102657961B CN 201210178299 A CN201210178299 A CN 201210178299A CN 102657961 B CN102657961 B CN 102657961B
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Abstract
The invention discloses a tar residue pre-separation and removal process and a tar residue pre-separation and removal system in a coke oven ammonia water system. The system mainly comprises a tar residue pre-separator, an accommodating tank, a mechanical clarifying tank, a tar residue adding device and the like. The process comprises the following steps of: preliminarily separating a mixture of tar, ammonia water and tar residue through the tar residue pre-separator, introducing the tar/ammonia water mixed solution into the next process, inputting the tar residue and mixture of residual tar and ammonia water into the mechanical clarifying tank for performing gravity separation, discharging the obtained mixed solution into the accommodating tank, and inputting the solution into the tar residue pre-separator through a submerged pump and the like; and scraping the tar residue from the mechanical clarifying tank, and transferring the tar residue to the tar residue adding device for blending coal. The effect of pre-separating and removing tar residue in the ammonia water can be greatly improved, the tar residue is separated in the mechanical clarifying tank, the link of depositing the tar residue in an underground emptying tank can be saved, the field operating environment is greatly improved, and the labor intensity of a worker is reduced.
Description
Technical field
The present invention be more particularly directed to one is applied to the intrasystem tar slag pre-separation of coke oven ammoniacal liquor and removes technique and system.
Background technology
The general PROVEN system that adopts full negative-pressure operation of current 7.63 meters of coke ovens in steel production enterprise, it has a large amount of coal dusts in the time of work, coke powder enters suction gas piping, along with ammoniacal liquor flows into tar slag preseparator together.For this type of tar slag, traditional handicraft is used the equipment such as tar press pump, thick thing filter, the underground emptying groove of tar slag preseparator in conjunction with being removed (consulting Fig. 1) conventionally, then makes ammoniacal liquor etc. enter later process 100, but it exists many defects, for example:
(1) tar press pump (1-5,1-6) belongs to import equipment, and separate unit cost is 1,000,000 yuan of left and right, expensive, and maintenance difficult;
(2) although tar slag breakage pump can carry out the fragmentation of tar slag, be confined to granule, bulky grain oil tar lump cannot be processed still to be needed to discharge;
(3) tar slag preseparator 1-1,1-2 bottom thick thing filter bottom deslagging caliber are little, regularly occur that bulk cinder stops up valve, needs standard-sized sheet valve to discharge.In the larger situation of ammonia pressures, cause bed drain purge large and rapid, very easily there is flowing full, affect site environment;
(4) former process tars slag, after thick thing filter (1-3,1-4) is discharged, enters underground emptying groove (1-8) as shown in Figure 1, then uses submerged pump (1-7) to discharge.But submerged pump only possesses outer ammonia excretion water function, do not possess disposal ability to entering underground emptying groove bulk tar slag.Tar slag deposits in underground tank, and pump line road under plugging fluid, finally causes underground tank volume reducing, needs monthly labor cleaning, not only expends a large amount of manpower and materials, and greatly affects execute-in-place environment.
Summary of the invention
The object of the present invention is to provide the pre-separation of a kind of coke oven ammoniacal liquor system tar slag and remove technique and system, it can significantly promote tar slag pre-separation and removal effect in ammoniacal liquor, save tar slag enters underground emptying groove flow process, improve execute-in-place environment, reduce worker's labour intensity, thereby overcome deficiency of the prior art.
For achieving the above object, the present invention has adopted following technical scheme:
The pre-separation of a kind of coke oven ammoniacal liquor system tar slag and removal technique, comprise the steps:
(1) mixture of tar, ammoniacal liquor and tar slag is carried out to initial gross separation by tar slag preseparator;
(2) tar/ammonia water mixture input next procedure initial gross separation being gone out, the tar slag simultaneously initial gross separation being gone out and residual tar, ammonia water mixture input mechanical settling tank;
(3) by mechanical settling tank, tar slag and residual tar, ammonia water mixture are carried out to Gravity Separation, upper strata is tar/ammonia water mixture, and lower floor is tar slag;
(4) step (3) tar/ammonia water mixture that obtains is entered to storage tank tank, subsequently by the tar in storage tank tank/ammonia water mixture input tar slag preseparator;
(5) step (3) tar slag that obtains is scraped in mechanical settling tank by slag scraping mechanism, and be transferred to coal blending in tar slag adding set.
Further, described in step (4), storage tank tank adopts underground emptying groove, and by the submerged pump arranging in underground emptying groove, tar/ammonia water mixture is inputted in tar slag preseparator.
Preferably, in step (5), be first tar slag to be scraped from mechanical defecator, and proceed in tar slag case, then again tar slag is transferred to coal blending in tar slag adding set.
A kind of coke oven ammoniacal liquor system tar slag pre-separation and removal system, comprising:
For the tar slag preseparator that the mixture of tar, ammoniacal liquor and tar slag is carried out to initial gross separation;
Be used for accepting institute's tar slag that obtains and residual tar after initial gross separation, ammonia water mixture, and carry out the mechanical settling tank of Gravity Separation, in described mechanical settling tank, be provided with the slag scraping mechanism for tar slag is scraped;
For accepting the tar slag case of the tar slag from scraping in mechanical settling tank;
For the storage tank tank of accommodating tar/ammonia water mixture,
Described tar slag preseparator, mechanical settling tank and storage tank tank pass through pipeline communication.
Further, described mechanical settling tank is connected with tar slag case by tar sealing device.
Described tar slag preseparator is more than two.
Described storage tank tank adopts underground emptying groove, in described underground emptying groove, is provided with submerged pump, and described submerged pump is communicated with tar slag preseparator through pipeline.
Brief description of the drawings
Fig. 1 is the structural representation that system is removed in existing coke oven ammoniacal liquor system tar slag pre-separation, wherein each assembly and Reference numeral thereof are respectively: tar slag preseparator 1-1,1-2, thick thing filter 1-3,1-4, tar press pump 1-5,1-6, submerged pump 1-7, underground emptying groove 1-8;
Fig. 2 is the structural representation of one embodiment of the present invention, wherein each assembly and Reference numeral thereof are respectively: tar slag preseparator 1,2, mechanical settling tank 10, tar sealing device 11, tar slag case 12, underground emptying groove 8, submerged pump 4, pipeline 3,5,6,7,9,13,14, concentrates exhaust stack 15.
Detailed description of the invention
Consult Fig. 2, this coke oven ammoniacal liquor system tar slag pre-separation and removal system comprise: tar slag preseparator 1,2, mechanical settling tank 10, tar sealing device 11, tar slag case 12, underground emptying groove 8, submerged pump 4, pipeline 3,5,6,7,9,13,14, concentrates exhaust stack 15.Wherein, tar slag preseparator 1,2 is communicated with mechanical settling tank 10 by pipeline 6,7 respectively; Mechanical settling tank 10 is connected by tar sealing device 11 with tar slag case 12; Mechanical settling tank 10 is communicated with underground emptying groove 8 by pipeline 9; Underground emptying groove 8 is communicated with submerged pump 4 by pipeline 5; Submerged pump 4 is communicated with tar slag preseparator 1,2 respectively by pipeline 3.Aforementioned mechanical settling tank 10 is preferably connected with tar slag case 12 by tar sealing device 11, to prevent emission of bad smell.
This coke oven ammoniacal liquor system tar slag pre-separation is as follows with the course of work of the system of removal:
(1) mixture of tar, ammoniacal liquor and tar slag is carried out in tar slag preseparator to initial gross separation;
(2) enter next procedure by separating the main tar/ammonia water mixture obtaining, and tar slag and residual tar, ammonia water mixture are inputted to mechanical settling tank;
(3) tar slag and residual tar, ammonia water mixture carry out layering after Gravity Separation in mechanical settling tank, and upper strata is tar/ammonia water mixture, and lower floor is tar slag;
(4) step (3) tar/ammonia water mixture that obtains is entered to underground emptying groove, and by the submerged pump arranging in underground emptying groove, tar/ammonia water mixture is pumped in tar slag preseparator;
(5) tar slag of mechanical defecator lower floor is scraped by slag scraping mechanism in trough, enters in tar slag case;
(6) tar slag in tar slag case is transported to the coal blending of tar slag adding set by fork truck etc.
Obviously at least there is following advantage in the present embodiment, compared to prior art:
(1) save tar slag and enter underground tank flow process, reduce the manpower and materials waste that underground tank labor cleaning causes.And can stop the site environment impact that groove, maintenance press pump cause clearly;
(2) mechanical settling tank cost 400,000, two tar press pump costs 2,000,000;
(3) mechanical settling tank adopts Gravity Separation, and accuracy significantly reduces compared with tar press pump, not fragile, easy to maintenance.
More than explanation and on drawing shown in embodiment, can not resolve the design philosophy surely of the present invention that is limited.In technical field of the present invention, holding the identical the knowledgeable of knowing can change technical thought of the present invention with various form improvement, such improvement and change are interpreted as belonging in protection scope of the present invention.
Claims (4)
1. the pre-separation of coke oven ammoniacal liquor system tar slag and a removal technique, is characterized in that, it comprises the steps:
(1) mixture of tar, ammoniacal liquor and tar slag is carried out to initial gross separation by tar slag preseparator;
(2) tar/ammonia water mixture input next procedure initial gross separation being gone out, the tar slag simultaneously initial gross separation being gone out and residual tar, ammonia water mixture input mechanical settling tank;
(3) by mechanical settling tank, tar slag and residual tar, ammonia water mixture are carried out to Gravity Separation, upper strata is tar/ammonia water mixture, and lower floor is tar slag;
(4) step (3) tar/ammonia water mixture that obtains is entered to storage tank tank, described storage tank tank adopts underground emptying groove, by the submerged pump arranging in underground emptying groove, the tar in storage tank tank/ammonia water mixture is inputted in tar slag preseparator subsequently;
(5) step (3) tar slag that obtains is scraped in mechanical settling tank by slag scraping mechanism, and be transferred to coal blending in tar slag adding set.
2. coke oven ammoniacal liquor system tar slag as claimed in claim 1 pre-separation and removal technique, it is characterized in that, in step (5), be first tar slag to be scraped from mechanical defecator, and proceed in tar slag case, then again tar slag is transferred to coal blending in tar slag adding set.
3. the tar slag pre-separation of coke oven ammoniacal liquor system and a removal system, is characterized in that, it comprises:
For the tar slag preseparator that the mixture of tar, ammoniacal liquor and tar slag is carried out to initial gross separation;
Be used for accepting institute's tar slag that obtains and residual tar after initial gross separation, ammonia water mixture, and carry out the mechanical settling tank of Gravity Separation, in described mechanical settling tank, be provided with the slag scraping mechanism for tar slag is scraped;
For accepting the tar slag case of the tar slag from scraping in mechanical settling tank;
For connecting the tar sealing device of mechanical settling tank and tar slag case;
For the storage tank tank of accommodating tar/ammonia water mixture, described storage tank tank adopts underground emptying groove, in described underground emptying groove, is provided with submerged pump;
Described tar slag preseparator, mechanical settling tank, submerged pump and storage tank tank pass through pipeline communication.
4. coke oven ammoniacal liquor system according to claim 3 tar slag pre-separation and removal system, is characterized in that, described tar slag preseparator is more than two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210178299.0A CN102657961B (en) | 2012-06-01 | 2012-06-01 | Tar residue pre-separation and removal process and system in coke oven ammonia water system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210178299.0A CN102657961B (en) | 2012-06-01 | 2012-06-01 | Tar residue pre-separation and removal process and system in coke oven ammonia water system |
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| CN102657961A CN102657961A (en) | 2012-09-12 |
| CN102657961B true CN102657961B (en) | 2014-10-08 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105381648A (en) * | 2015-12-19 | 2016-03-09 | 太原重工股份有限公司 | Tar ammonia separation system and tar ammonia separation method |
| CN106904754A (en) * | 2015-12-23 | 2017-06-30 | 上海宝钢化工有限公司 | A kind of remained ammonia waste-oil scavenger and deoiling method |
| CN108659892B (en) * | 2017-03-28 | 2020-12-08 | 宝武炭材料科技有限公司 | Coke oven gas blast condensation area tank waste gas recovery system and recovery method |
| CN112892757B (en) * | 2021-01-19 | 2023-03-14 | 马鞍山市新能环智能科技有限公司 | Pre-separator tar residue treatment system and treatment method thereof |
| CN114653108A (en) * | 2022-04-15 | 2022-06-24 | 山东钢铁集团日照有限公司 | Separation process of coal coking tar residues |
| CN115155153B (en) * | 2022-07-25 | 2024-08-30 | 拜城县众泰煤焦化有限公司 | Tar residue crushing system for coking cooling drum system and working method thereof |
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| JPS569217A (en) * | 1979-07-02 | 1981-01-30 | Osaka Gas Co Ltd | Recovering and treating method for tar residue in ammonium sulfate mother liquor |
| CN201200826Y (en) * | 2008-03-28 | 2009-03-04 | 酒泉钢铁(集团)有限责任公司 | Tank for clarifying and separating coke tar and ammonia water |
| CN201643829U (en) * | 2010-03-17 | 2010-11-24 | 上海宝钢化工有限公司 | Sticky tar filter |
| CN202590437U (en) * | 2012-06-01 | 2012-12-12 | 江苏沙钢集团有限公司 | Tar residue preseparation and removing system of coke oven ammonia water system |
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2012
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS569217A (en) * | 1979-07-02 | 1981-01-30 | Osaka Gas Co Ltd | Recovering and treating method for tar residue in ammonium sulfate mother liquor |
| CN201200826Y (en) * | 2008-03-28 | 2009-03-04 | 酒泉钢铁(集团)有限责任公司 | Tank for clarifying and separating coke tar and ammonia water |
| CN201643829U (en) * | 2010-03-17 | 2010-11-24 | 上海宝钢化工有限公司 | Sticky tar filter |
| CN202590437U (en) * | 2012-06-01 | 2012-12-12 | 江苏沙钢集团有限公司 | Tar residue preseparation and removing system of coke oven ammonia water system |
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| 7.63m焦炉焦油脱渣系统的改造;姚春伟;《河北冶金》;20111107;187-189 * |
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