CN200986399Y - Prewarming mixture mine slot heater - Google Patents
Prewarming mixture mine slot heater Download PDFInfo
- Publication number
- CN200986399Y CN200986399Y CN 200620128449 CN200620128449U CN200986399Y CN 200986399 Y CN200986399 Y CN 200986399Y CN 200620128449 CN200620128449 CN 200620128449 CN 200620128449 U CN200620128449 U CN 200620128449U CN 200986399 Y CN200986399 Y CN 200986399Y
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- ore deposit
- mixture
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Abstract
A preheating mixture bin heater belongs to the technical field of pretreatment device of metallurgic raw and processed materials, and the technical problems can be solved by providing a preheating mixture bin heater which has small heat loss can improve steam utilization ratio and the temperature of mixture. The technical proposal is that the utility model consists of a steam connecting pipe and a nozzle; the rear end of the nozzle is connected with the steam connecting pipe; the front end of the nozzle is connected with the sidewall of a mixture bin. The utility model is improved in that the steam connecting pipe and the nozzle are connected in a straight communication way; the nozzle is a cross nozzle; the angle between the front end of the nozzle and the level of the mixture bin ranges from 15 DEG C to 75 DEG C. As the utility model adopts the connection mode of straight communication, and the large diameter and slope angle nozzle is adopted, the heat loss is reduced; the steam utilization ratio is significantly improved; the steam nozzle is prevented from being built up; the temperature of mixture on a sintering machine is as high as 70 DEG C through 90 DEG C; the problem that material permeability is worsened is significantly improved, and the problem that mixture adheres to the bin is eliminated.
Description
Technical field
The utility model relates to the device that in a kind of iron and steel production compound ore deposit groove is heated, and belongs to metallurgical raw material pre-processing device technical field.
Background technology
Sintering is important step in the steel manufacture process, and metallurgical theory and production practices all show, 10 ℃ of the every raisings of sinter mixture temperature, and sintering solid fuel consumption will reduce about 2kg/t, and productivity of sintering machine improves 1-3%.The steam dew-point temperature is generally at 65-70 ℃ in the sintered discharge gas, when mixture temperature is lower than dew-point temperature, in sintering process, sinter bed top moisture evaporated will be condensed into water when following waste gas to flow to the sinter bed bottom downwards, and can not discharge, and in sinter bed, formed wet band with waste gas.Because it is big to cross wet band resistance, causes permeability of sintering material bed to descend, sintering deposit output descends, degradation.
At present, the mixture temperature on the general steel production enterprise sintering machine between 30-60 ℃, i.e. about 30 ℃ of winters, about 60 ℃ of summers, all be lower than dew-point temperature, therefore from the angle of energy savings and raising sintering machine utilization ratio, it is imperative to improve mixture temperature.But the heater that adds the steam preheating compound on the groove of existing compound ore deposit exists following shortcoming:
1. after compound ore deposit groove added steam, because steam pressure is low, steam jet stopped up easily, influence material temperature;
2. mixture temperature skewness on the sintering machine section, bed permeability worsens;
3. the heater structure complexity is not easy to maintenance.
In view of this, the steam preheating compound heater that is provided with on the groove of existing compound ore deposit being improved, to enhance productivity and energy savings, is the urgent task that the technical staff faces.
Summary of the invention
Problem to be solved in the utility model is to overcome above-mentioned problems of the prior art and the pre-heat mixture ore deposit groove heater that a kind of heat loss is little, improve steam utilization and mixture temperature is provided.
The technical scheme that solves the problems of the technologies described above is:
A kind of pre-heat mixture ore deposit groove heater, it is made up of steam connection tube road, nozzle, the nozzle rear portion is connected with the steam connection tube road, spray nozzle front end is connected with compound ore deposit groove sidewall, its improvements are that the steam connection tube road adopts straight-through the connection with nozzle, and the angle between spray nozzle front end and the compound ore deposit groove horizontal plane is 15 °-75 °.
Above-mentioned pre-heat mixture ore deposit groove heater, the arrival end of described jet chimney 7 links to each other with steam heater, and the other end of steam superheater is connected with main steam range, and steam superheater is arranged at the holding furnace rear portion of ignition furnace.
Above-mentioned pre-heat mixture ore deposit groove heater, described steam heater is a coiled pipe.
Above-mentioned pre-heat mixture ore deposit groove heater, described spray nozzle front end becomes 30 ° of angles with compound ore deposit groove horizontal plane, and nozzle diameter is 90-120mm.
Above-mentioned pre-heat mixture ore deposit groove heater, the diameter of described nozzle is 100-110mm.
Pre-heat mixture provided by the utility model ore deposit groove heater, owing to adopt straight-through connected mode and adopt major diameter and the nozzle at angle of inclination, superheated steam is provided simultaneously, make that heat loss reduces, steam utilization greatly improves, avoided the steam jet phenomenon of blocking, as stopping up, can when producing, close a nozzle valve 5 separately in special circumstances, take off stifledly 6, carry out single mediation and do not influence other nozzle operation.The temperature of compound reaches 70-90 ℃ on the sintering machine, has greatly improved the problem that bed permeability worsens, and has solved the problem of compound ore deposit groove sizing.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of existing heater;
Fig. 3 is that the A of Fig. 1 is to zoomed-in view;
Fig. 4 is the I portion vertical section zoomed-in view of Fig. 1.
Mark is as follows among the figure: 1 chassis; 2 roll-type clothes; 3 garden roller clothes; 4 compound ore deposit grooves; 5 valves; 6 is stifled; 7 air inlet pipe; 8 ignition furnaces; 9 holding furnaces; 10 heaters; 11 hosepipes, 12 flanges; 13 nozzles
The specific embodiment
Fig. 2 is the structural representation of existing heater, and its steam connection tube road adopts flanged plate 12 to be connected with nozzle 13, and air inlet pipe 7 diameters of nozzle 13 front ends are less, and this has just caused the steam pressure loss big, the shortcoming that circulation is not smooth, nozzle 13 stops up easily.Simultaneously, nozzle 13 adopts level angles to install with compound ore deposit groove 4, makes heated mixture temperature skewness, and bed of material air permeability is poor.
Fig. 1 shows, for overcoming above-mentioned defective, the utility model adds the diameter overstriking of the heater steam jet 13 front end air inlet pipe 7 of steam preheating compound with the compound ore deposit groove of original center, to reduce the pressure loss, improves air inflow.Among the embodiment that shows in Fig. 1, the diameter of air inlet pipe 7 is identical with the diameter of nozzle 13, the 108mm that the diameter of air inlet pipe 7 is increased by original 80mm.Secondly, the structure of existing nozzle 13 is improved, cancelled the connected mode of flanged plate 12, thick-walled pipe is straight-through to be connected and adopt.The 3rd, the original nozzle 13 and the level of compound ore deposit groove 4 installed change 30 ° of angles into and install.Nozzle 13 among the figure is the cross nozzle, and each nozzle of cross nozzle all has independent valve 5 and stifled 6.As stopping up, can close a nozzle valve 5 in special circumstances separately, take off stifledly 6, carry out single mediation and do not influence other nozzle operation.
Still consult accompanying drawing, for further improving vapor (steam) temperature, guarantee the pre-heat effect of compound in the groove of ore deposit, present embodiment has also been set up a snakelike tubulose steam heater 10.Steam heater 10 is arranged at the holding furnace rear portion of ignition furnace, and its arrival end is connected with main steam range, and the port of export links to each other with the arrival end of steam inlet pipe 7.Like this, can behind ignition furnace of sintering machine, utilize the waste heat of coiled pipe 11 recovery point stoves, Steam Heating is become 150 ℃ of-180 ℃ of superheated steams, offer compound ore deposit groove.
Claims (6)
1. pre-heat mixture ore deposit groove heater, it is made up of steam connection tube road, nozzle [13], nozzle [13] rear portion is connected with the steam connection tube road, nozzle [13] front end is connected with compound ore deposit groove [4] sidewall, it is characterized in that: the steam connection tube road adopts straight-through the connection with nozzle [13], and the angle between nozzle [13] front end and compound ore deposit groove [4] horizontal plane is 15 °-75 °.
2. pre-heat mixture according to claim 1 ore deposit groove heater, it is characterized in that: the arrival end of described jet chimney links to each other with steam heater [10], the other end of steam heater [10] is connected with main steam range, and steam heater is arranged at the holding furnace rear portion of ignition furnace.
3. pre-heat mixture according to claim 2 ore deposit groove heater is characterized in that: described steam heater [10] is a coiled pipe [11].
4. according to claim 1,2 or 3 described pre-heat mixture ore deposit groove heaters, it is characterized in that: described nozzle [13] front end becomes 30 ° with compound ore deposit groove [4] horizontal plane, and nozzle [13] diameter is 90-120mm.
5. pre-heat mixture according to claim 4 ore deposit groove heater, it is characterized in that: the diameter of described nozzle [13] is 100-110mm, nozzle is the cross nozzle.
6. pre-heat mixture according to claim 5 ore deposit groove heater is characterized in that: each nozzle of described cross nozzle all has independent valve [5] and stifled [6].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620128449 CN200986399Y (en) | 2006-12-20 | 2006-12-20 | Prewarming mixture mine slot heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620128449 CN200986399Y (en) | 2006-12-20 | 2006-12-20 | Prewarming mixture mine slot heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200986399Y true CN200986399Y (en) | 2007-12-05 |
Family
ID=38915856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620128449 Expired - Fee Related CN200986399Y (en) | 2006-12-20 | 2006-12-20 | Prewarming mixture mine slot heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200986399Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988804A (en) * | 2010-12-09 | 2011-03-23 | 宁波钢铁有限公司 | Device and method for drying blast furnace ores and coke groove by recycling residual heat of circular cooler |
| CN103658089A (en) * | 2013-12-16 | 2014-03-26 | 新余钢铁集团有限公司 | Steam cleaner for mixture trough of sintering machine |
| CN105316477A (en) * | 2014-06-09 | 2016-02-10 | 鞍钢股份有限公司 | Pre-heating method of sintering mixed material |
| CN109055730A (en) * | 2018-09-25 | 2018-12-21 | 湖南华菱湘潭钢铁有限公司 | The method of steel works sintering preheating of mixed material |
| CN114754592A (en) * | 2022-01-05 | 2022-07-15 | 首钢京唐钢铁联合有限责任公司 | Sintering system and method |
-
2006
- 2006-12-20 CN CN 200620128449 patent/CN200986399Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988804A (en) * | 2010-12-09 | 2011-03-23 | 宁波钢铁有限公司 | Device and method for drying blast furnace ores and coke groove by recycling residual heat of circular cooler |
| CN101988804B (en) * | 2010-12-09 | 2012-11-14 | 宁波钢铁有限公司 | Device and method for drying blast furnace ores and coke groove by recycling residual heat of circular cooler |
| CN103658089A (en) * | 2013-12-16 | 2014-03-26 | 新余钢铁集团有限公司 | Steam cleaner for mixture trough of sintering machine |
| CN103658089B (en) * | 2013-12-16 | 2016-02-10 | 新余钢铁集团有限公司 | A kind of mixture of sintering machine groove steam cleaner |
| CN105316477A (en) * | 2014-06-09 | 2016-02-10 | 鞍钢股份有限公司 | Pre-heating method of sintering mixed material |
| CN109055730A (en) * | 2018-09-25 | 2018-12-21 | 湖南华菱湘潭钢铁有限公司 | The method of steel works sintering preheating of mixed material |
| CN114754592A (en) * | 2022-01-05 | 2022-07-15 | 首钢京唐钢铁联合有限责任公司 | Sintering system and method |
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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: 20071205 Termination date: 20121220 |