CN202265539U - Process device for reconstructing coke wet quenching into coke dry quenching - Google Patents
Process device for reconstructing coke wet quenching into coke dry quenching Download PDFInfo
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- CN202265539U CN202265539U CN2011202927023U CN201120292702U CN202265539U CN 202265539 U CN202265539 U CN 202265539U CN 2011202927023 U CN2011202927023 U CN 2011202927023U CN 201120292702 U CN201120292702 U CN 201120292702U CN 202265539 U CN202265539 U CN 202265539U
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Abstract
A Process device for reconstructing coke wet quenching into coke dry quenching relates to coke production equipment. The utility model solves the problems of large investment, difficult equipment manufacturing, long operation period, and high operation cost for current dry quenching process. According to the utility model, a red coke channel is disposed at one side of a coke-quenching vehicle, and is communicated with a coke cooling box; a coke cooling channel is inclinedly disposed in the coke cooling box, and is isolated by cooling water chambers; an outlet of the coke cooling channel is connected with a belt conveyer; the cooling water chamber is communicated with a water inlet pipe from a boiler; a nitrogen circulating channel from a nitrogen generator is disposed at the side surface of the coke cooling box, and a high temperature nitrogen channel is disposed on the top part of the coke cooling box; a heat exchanger is disposed below the coke cooling box; a water inlet pipe of the heat eschanger is communicated with a cooling water return pipe, and a water outlet pipe is communicated with a boiler deaerator; the heat exchanger is communicated with the high temperature nitrogen channel and a deduster; the deduster is communicated with the high temperature nitrogen channel. The utility model is used for coke wet quenching reconstruction, is less in investment, and low in operation cost, and all the products can be homemade.
Description
Technical field
The utility model relates to the equipment of producing coke, particularly coke quenching device.
Background technology
China's steel industry developed rapidly in recent years, and the expansion of Iron and Steel Production scale causes the demand of STRENGTH ON COKE to increase fast.Having energy-saving and cost-reducing, as to reduce environmental pollution, raising coke quality Dry Quenching Technology and meet national industrial policies, is the new technology project of national encourage growth.
The conventional wet quenching adopts water spray directly to extinguish red-hot red Jiao; Not only heat energy can not reclaim; And ton is burnt produces 0.3～0.4 ton of water vapor and carry objectionable impuritiess such as volume of smoke and a small amount of sulfide secretly and diffuse, both severe contamination atmosphere and surrounding environment, also a large amount of simultaneously water consumptions.Now the stage, international and domestic most coke-oven plants still adopt wet quenching technology, and especially developing country's wet quenching is more general.Dry coke quenching then is that red Jiao who leaves coking chamber is placed an airtight relatively system, cools off with contacting with relative movement of red Jiao through the rare gas element in the system.Adopt Dry Quenching Technology to help recycling residual heat resources, help improving coke quality, help reducing Air Pollutant Emission, help practicing thrift the quenching water.
China's Dry Quenching Technology is that Baosteel's First-stage Construction in 1986 is introduced from Japan and begun to use, and PVG producer gas plant, Ji steel, Shoudu Iron and Steel Co etc. have been introduced Russia, Ukraine, Japanese Dry Quenching Technology again subsequently.Dry Quenching Technology develops so far, though different apparatus-form occurred, typical process flow is similar, and is just different at aspects such as dress Jiao, coke discharging, heat recuperation mode, recycle gas dedustings.
The dry quenching(of coke) technology is the great faster energy-conserving and emission-cutting technology of China's development; Be confirmed as " Chinese coking industry technical development guide project "; Coking industry will be an important task with the low charcoal economy of development circulation, and the response national industrial policies promote the coking level with dry coke quenching technology.
Make a general survey of domestic existing dry coke quenching process unit; Comprise most external dry coke quenching process units; Adorn burnt technology and be provided with tall and big lifting transportation derrick, red Jiao of burnt jar of packing into packs in the quenching stove through level transportation, vertical-lift, the mode of transport that moves horizontally, vertically transfer.The dry coke quenching process unit of prior art exists that investment is big, device fabrication is difficult, long operational time, problem that working cost is high.
Summary of the invention
The purpose of the utility model is to overcome the shortcoming of prior art, provides a kind of coke coke wet quenching to be transformed into the process unit of dry coke quenching, solves that existing dry coke quenching technology investment is big, device fabrication is difficult, long operational time, problem that working cost is high.
The utility model is realized through following technical scheme:
A kind of coke coke wet quenching is transformed into the process unit of dry coke quenching, comprising: be arranged on the lateral coke guide of coke oven, the quenching car that joins with coke guide, and ground station for dust removal, rotary conveyor, boiler, Nitrogen plant; It is characterized in that: red burnt passage is set is communicated with cold burnt case in said quenching car burnt platform one side of drying in the air; The cold burnt passage that useful cooling water cavity is isolated, is obliquely installed in the said cold burnt case; Said cold burnt channel exit is provided with shield cap; The pipeline of said shield cap is communicated with ground station for dust removal, and the below of said cold burnt channel exit is connected with rotary conveyor; Said cooling water cavity by the top cover water jacket and all around water jacket constitute, said around water jacket be communicated with cooling water inlet pipe from boiler, said top cover water jacket is communicated with CWR; The side of said cold burnt case be provided with from the nitrogen circulation passage of Nitrogen plant, said nitrogen circulation passage is gone into pipe through two-way nitrogen and is got in the said cold burnt case, the top of said cold burnt case is provided with the high temperature nitrogen passage and is communicated with fly-ash separator; Below said cold burnt case, interchanger is set, the water inlet pipe of said interchanger is communicated with said CWR, and the rising pipe of said interchanger is communicated with said boiler feed; The high temperature nitrogen inlet of said interchanger is communicated with said fly-ash separator, the low temperature nitrogen outlet and the nitrogen circulation channel connection of said interchanger, and said nitrogen circulation passage is connected with the nitrogen circulation blower fan.
45 °～60 ° at the inclination angle of said cold burnt passage; Horizontal sequence 1～3 row of said cold burnt passage, vertically sequence 3～10 rows; The joint of said red burnt passage and said cold burnt case is provided with the opening for feed plate-turning door, and the discharge port of said cold burnt case is provided with the discharge port plate-turning door; The two ends of said interchanger are provided with inspection manhole, and the bottom of said interchanger is provided with ash output hole; Said cold burnt passage is circle or Polygons.
The utility model is compared with existing skill wood, has the following advantages and beneficial effect:
The utility model utilizes water coolant and nitrogen simultaneously red Jiao to be cooled off, and red Jiao's thermal radiation, convection current, heat conduction three aspects can make red Jiao about 1000 ℃ be cooled to below 150 ℃, the red burnt sensible heat of maximum possible recovery through transmitting heat.In process of cooling,, reduced running cost because the effect of water coolant makes the nitrogen consumption reduction by 40%～50% of the consumption of nitrogen than prior art.
In the modification scheme of the utility model; The large-scale transportation and the lifting gear that do not have general dry coke quenching auxiliary do not have big formed coke jar, do not have one-time dedusting; There is not the high pressure waste heat steam boiler; Maximum possible utilize enterprise's existing installation, greatly reduce the investment of construction like this, greatly reduce running cost.
Description of drawings
Fig. 1 is the structural representation (front view) of the utility model;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the structural representation (front view) of cold burnt case and interchanger;
Fig. 4 is that the B of Fig. 3 is to view;
Fig. 5 is the B-B sectional view (water coolant in cooling water cavity flow to synoptic diagram) of Fig. 3;
Fig. 6 is that the C of Fig. 5 is to view (water coolant in the top cover water jacket flow to synoptic diagram);
Fig. 7 is the A-A sectional view (diagrammatic cross-section of interchanger) of Fig. 3;
Fig. 8 is the process flow sheet of the utility model.
Embodiment
Shown in Fig. 1～7, a kind of coke coke wet quenching is transformed into the process unit of dry coke quenching, comprising: be arranged on coke oven 1 lateral coke guide 2, the quenching car 3 that joins with coke guide 2, and ground station for dust removal 1-1, rotary conveyor 7, boiler, Nitrogen plant; Red burnt passage 4 is set is communicated with in said quenching car 3 burnt platform one side of drying in the air with cold burnt case 5; The cold burnt passage 5-5 that useful cooling water cavity 5-4 isolates, is obliquely installed in the said cold burnt case 5; Said cold burnt passage 5-5 exit is provided with shield cap 6; The pipeline of said shield cap 6 is communicated with ground station for dust removal 1-1, and the below in said cold burnt passage 5-5 exit is connected with rotary conveyor 7; Said cooling water cavity 5-4 by top cover water jacket 5-2 and all around water jacket 5-3 constitute, said around water jacket 5-3 be communicated with cooling water inlet pipe 15 from boiler, said top cover water jacket 5-2 is communicated with CWR 12; The side of said cold burnt case 5 be provided with from the nitrogen circulation path 10 of Nitrogen plant, said nitrogen circulation path 10 is gone into pipe 14 through two-way nitrogen and is got in the said cold burnt case 5, the top of said cold burnt case 5 is provided with high temperature nitrogen passage 11 and is communicated with fly-ash separator 9; Below said cold burnt case 5, interchanger 8 is set, the water inlet pipe 8-3 of said interchanger 8 is communicated with said CWR 12, and the rising pipe 8-4 of said interchanger 8 is communicated with said boiler feed; The high temperature nitrogen inlet 8-1 of said interchanger 8 is communicated with said fly-ash separator 9, and the low temperature nitrogen outlet 8-2 of said interchanger 8 is communicated with the nitrogen circulation path 10, and said nitrogen circulation path 10 is connected with nitrogen circulation blower fan 13.
45 °～60 ° at the inclination angle of said cold burnt passage 5-5; Horizontal sequence 1～3 row of said cold burnt passage 5-5, vertically sequence 3～10 rows; Said red burnt passage 4 is provided with opening for feed plate-turning door 5-1 with the joint of said cold burnt case 5, and the discharge port of said cold burnt case 5 is provided with discharge port plate-turning door 5-6; The two ends of said interchanger 8 are provided with inspection manhole 8-5, and the bottom of said interchanger 8 is provided with ash output hole 8-6; Said cold burnt passage 5-5 is circle or Polygons.
The cooling water system of the utility model:
The boiler softening water gets into cold burnt case 5 by cooling water inlet pipe 15, carries out being discharged by CWR 12 after the heat exchange with high temperature coke, gets into interchanger 8, carries out discharging into boiler feed by the rising pipe of interchanger 8 after the heat exchange with high temperature nitrogen.
The nitrogen circulating system of the utility model:
Nitrogen divides two-way nitrogen to go into pipe 14 by the nitrogen circulation path 10; Get into high temperature nitrogen passage 11 after getting into cold burnt case 5 heat exchanges of part respectively; Through getting into interchanger 8 heat exchange after fly-ash separator 9 dedustings, get into the nitrogen circulation path 10 then, get into cold burnt case 5 circulations again through nitrogen circulation blower fan 13.
The coke trend of the utility model:
Red Jiao gets into cold burnt case 5 from quenching car through red burnt passage 4, and the cooling back is discharged by rotary conveyor 7 and is delivered to sieve Jiao Ta.
Like Fig. 1,2, shown in 8; The utility model structural representation (processing set-up figure) be to formulate according to present China's coke industry coke oven coke wet quenching on-site actual situations; On the basis that keeps coke wet quenching; Utilize field position, suit measures to local conditions, reach the purpose that coke wet quenching is transformed into dry coke quenching with less input.
Existing coke oven 1, coke guide 2, quenching car 3 processing set-up are remained stationary; In quenching car 3 reinforcement walls that burnt platform one side builds a stifled Steel Concrete of drying in the air; Set up Steel Concrete or the red burnt passage 4 of steel at coping; With guarantee red Jiao in the quenching car 3 can be fast whole cold burnt casees 5 of entering, and be provided with shield cap 6 and prevent that burnt dirt from spreading.
The dust at red burnt passage and position, cold burnt whereabouts sucks ground station for dust removal 1-1 with shield cap 6 pipelines, the coke dust of collecting through fly-ash separator 9 in the nitrogen circulation process, and pneumatic conveying mode also capable of using gets into ground station for dust removal 1-1.
The rotary conveyor 7 of cooled coke former cold burnt platform capable of using is transported to sieve Jiao Ta with it.
Pressurized air source original air source of the gas also capable of using of cold burnt case 5 entrance and exit turnover panel hermatic doors.Existing dry coke quenching technology must go up highly compressed nitrogen waste heat boiler, and is technical high with the maneuverability requirement; Most of enterprises select external product for use, and investment is big, and the utility model is ℃ to rise to high-temperature water≤90 ℃ entering boiler with water coolant heat absorption back by water at low temperature≤30; The self-owned power plant boiler of existing enterprise capable of using or central heating boiler; Do not have boiler like enterprise, only need to go up the home-made boiler product and get final product, help the armamentarium production domesticization.
Set up cold burnt case system, Dan Zuleng is burnt, and amount is 10-20t, is about 30-50 minute cooling time, and the big I of the burnt case of Dan Zuleng is confirmed according to user's coke oven amount of capacity and cooling water inflow size, and use capable of being combined, satisfies the big or small user's of different output needs.In the type selecting process, can suitably stay certain surplus, so just can satisfy the coke oven temporal requirement of the discharging of the coke, leave maintenance leeway also can for cold burnt equipment, guarantee the long-term non-stop run at full capacity of coke oven.
Schedule of operation in the dry coke quenching process of cooling is all by the PLC auto-control.
In the dry coke quenching process of cooling; Use the recycle gas on-line detecting system that the nitrogen composition that moves in the cold burnt case system is analyzed and detected; Control CO, CO2 content ratio are replenished nitrogen or combustion air, in case of necessity to guarantee the safe and reliable operation of equipment.
The demonstration and the chain controlling alarm of teletransmission temperature, pressure are set in the water coolant high-temperature zone of the top of cold burnt case interlayer and interchanger, SV is set simultaneously, guarantee the safe operation under normal pressure and temperature of cold burnt case.
The cold burnt operating process of the utility model:
Advancing water coolant makes it to be full of cold burnt case 5 and interchanger 8 (draining whole air) → open opening for feed plate-turning door 5-1 → red Jiao and gets into → close opening for feed plate-turning door 5-1 → send into nitrogen (this moment, water coolant moved with the nitrogen normal circulation) → stop to supply nitrogen after 30～50 minutes; Stop water coolant move → opening discharge port plate-turning door 5-6 successively (can be from left to right; Get on, get off; As open down 1# door of a left side earlier, and drain cold defocusedly promptly close, open upper left 1# door again; Drain cold defocusedly promptly close; Successively a left side down the 2# door open and drain cold Jiao, close, upper left 2# door is opened and is drained cold Jiao, closes, by that analogy) → water coolant opens and move → open the last program of opening for feed plate-turning door 5-1 → repeat.
Claims (6)
1. a coke coke wet quenching is transformed into the process unit of dry coke quenching, comprising: be arranged on the lateral coke guide of coke oven (1) (2), the quenching car (3) that joins with coke guide (2), and ground station for dust removal (1-1), rotary conveyor (7), boiler, Nitrogen plant; It is characterized in that: red burnt passage (4) is set is communicated with cold burnt case (5) in said quenching car (3) burnt platform one side of drying in the air; The cold burnt passage (5-5) that useful cooling water cavity (5-4) is isolated, is obliquely installed in the said cold burnt case (5); Said cold burnt passage (5-5) exit is provided with shield cap (6); The pipeline of said shield cap (6) is communicated with ground station for dust removal (1-1), and the below in said cold burnt passage (5-5) exit is connected with rotary conveyor (7); Said cooling water cavity (5-4) by top cover water jacket (5-2) and all around water jacket (5-3) constitute, said around water jacket (5-3) be communicated with cooling water inlet pipe (15) from boiler, said top cover water jacket (5-2) is communicated with CWR (12); The side of said cold burnt case (5) be provided with from the nitrogen circulation passage (10) of Nitrogen plant; Said nitrogen circulation passage (10) is gone into pipe (14) through two-way nitrogen and is got in the said cold burnt case (5), and the top of said cold burnt case (5) is provided with high temperature nitrogen passage (11) and is communicated with fly-ash separator (9); Interchanger (8) is set below said cold burnt case (5), and the water inlet pipe (8-3) of said interchanger (8) is communicated with said CWR (12), and the rising pipe (8-4) of said interchanger (8) is communicated with said boiler feed; The high temperature nitrogen inlet (8-1) of said interchanger (8) is communicated with said fly-ash separator (9), and the low temperature nitrogen outlet (8-2) of said interchanger (8) is communicated with nitrogen circulation passage (10), and said nitrogen circulation passage (10) is connected with nitrogen circulation blower fan (13).
2. according to the process unit of the said dry coke quenching of claim 1, it is characterized in that: the inclination angle of said cold burnt passage (5-5) is 45 °～60 °.
3. according to the process unit of the said dry coke quenching of claim 1, it is characterized in that: horizontal sequence 1～3 row of said cold burnt passage (5-5), vertically sequence 3～10 rows.
4. according to the process unit of the said dry coke quenching of claim 1, it is characterized in that: said red burnt passage (4) is provided with opening for feed plate-turning door (5-1) with the joint of said cold burnt case (5), and the discharge port of said cold burnt case (5) is provided with discharge port plate-turning door (5-6).
5. according to the process unit of the said dry coke quenching of claim 1, it is characterized in that: the two ends of said interchanger (8) are provided with inspection manhole (8-5), and the bottom of said interchanger (8) is provided with ash output hole (8-6).
6. according to the process unit of the said dry coke quenching of claim 1, it is characterized in that: said cold burnt passage (5-5) is circle or Polygons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202927023U CN202265539U (en) | 2011-08-10 | 2011-08-10 | Process device for reconstructing coke wet quenching into coke dry quenching |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202927023U CN202265539U (en) | 2011-08-10 | 2011-08-10 | Process device for reconstructing coke wet quenching into coke dry quenching |
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| CN202265539U true CN202265539U (en) | 2012-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202927023U Expired - Fee Related CN202265539U (en) | 2011-08-10 | 2011-08-10 | Process device for reconstructing coke wet quenching into coke dry quenching |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304368A (en) * | 2011-08-10 | 2012-01-04 | 山西英达飞科技贸易有限公司 | Process device for modifying wet quenched coke into dry quenched coke |
| CN109233876A (en) * | 2018-10-15 | 2019-01-18 | 中冶焦耐(大连)工程技术有限公司 | A kind of three-dimensional water cooling coke quenching cart and its working method of the water supply of bottom single channel |
| CN109465409A (en) * | 2018-11-21 | 2019-03-15 | 肖勇斌 | A kind of copper rod foundry furnace deaeration plant |
-
2011
- 2011-08-10 CN CN2011202927023U patent/CN202265539U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304368A (en) * | 2011-08-10 | 2012-01-04 | 山西英达飞科技贸易有限公司 | Process device for modifying wet quenched coke into dry quenched coke |
| CN109233876A (en) * | 2018-10-15 | 2019-01-18 | 中冶焦耐(大连)工程技术有限公司 | A kind of three-dimensional water cooling coke quenching cart and its working method of the water supply of bottom single channel |
| CN109233876B (en) * | 2018-10-15 | 2024-01-09 | 中冶焦耐(大连)工程技术有限公司 | Three-dimensional water-cooling coke quenching car with bottom supplied with water in single way and working method thereof |
| CN109465409A (en) * | 2018-11-21 | 2019-03-15 | 肖勇斌 | A kind of copper rod foundry furnace deaeration plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20130810 |