CN202555786U - Novel environment-friendly safety heating device for burial pit - Google Patents
Novel environment-friendly safety heating device for burial pit Download PDFInfo
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- CN202555786U CN202555786U CN2012201736269U CN201220173626U CN202555786U CN 202555786 U CN202555786 U CN 202555786U CN 2012201736269 U CN2012201736269 U CN 2012201736269U CN 201220173626 U CN201220173626 U CN 201220173626U CN 202555786 U CN202555786 U CN 202555786U
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- burial pit
- ceramic honeycomb
- heat exchanger
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Abstract
The utility model relates to a novel environment-friendly safety heating device for a burial pit, which is provided with a hot blast heater and a fresh air thermal storage heat exchanger that are connected by a smoke pipeline, wherein the fresh air thermal storage heat exchanger is connected with a smoke discharge pipeline, a fresh air intake pipeline, and a hot air pipeline, the hot air pipeline is provided with a pressure device and is communicated into the burial pit, the hot air pipeline in the burial pit is provided with a plurality of air outlet nozzles, the burial pit is provided with a surplus heat utilization pipeline connected with the hot blast heater, and the fresh air thermal storage heat exchanger is internally provided with a ceramic cellular heat accumulator. The novel environment-friendly safety heating device has a reasonable structure design and good heating effect, can effectively adjust the cooling speed of blank and can solve the problem of preheating and heating of a steel ingot and a billet as well as the problem of the recycle of low heating value gas in a steel mill, thus achieving the purpose of safety, environment protection and cleaner production, furthermore, the quality of the steel product can be greatly improved.
Description
Technical field
The utility model relates to a kind of heater, relates in particular to a kind of novel environment friendly safety heater of burial pit.
Background technology
Ingot mould is that die casting is produced large casting unit indispensable, that turnover is used, it has material impact to the surface of steel ingot and internal soundness and steel ingot cost.The ingot mould that heated, significant for the surface quality of special smelting final molding steel ingot; It is in recent years for novel process requirement that rolling excellent special steel proposed that steel billet advances preheating, heating before the heating furnace; Simultaneously, in order to improve the production efficiency of heating furnace, water-cooled die casting steel billet material needs hot charging, is heated to more than 300 ℃, during water cooled mo(u)ld cast steel cutting rising head, also needs heating; Middle plate needs hot-loading and hot-conveying; For 718, extraordinary steel grades such as P20, P80, NSM30 mould steel and H13,4Cr13, because of its C content all 0.3% ~ 0.5%, and added alloying elements such as a large amount of Cr, Mo, must be preheating to 200 ~ 500 ℃ of ability and get into hot-blast stoves; There is the situation of defectives such as crackle for the part continuous casting billet, needs to be preheating to uniform temperature after the reconditioning and go into stove.Therefore, as stated, all need adopt even heat tracing pattern for these steel ingots.
At present, steel mill generally adopts high heating value gas to feed by the ingot mould, and the direct-fire combustion system carries out heat form to it.Directly burning heating, not only inhomogeneous to the ingot mould heating, be difficult for regulating, the surface can burn-off phenomenon occur and have a strong impact on product quality, and, in case gas leak or flame-outly will have serious production safety hidden danger.
Summary of the invention
The technical problem that the utility model solved is the deficiency to prior art, provide a kind of structure more rationally, the novel environment friendly safety heater of the burial pit of good, the safety and environmental protection of heats.
The utility model technical problem to be solved is to realize through following technical scheme.The utility model is a kind of novel environment friendly safety heater of burial pit; Be characterized in: this device is provided with the hot-blast stove and new wind regenerative heat exchanger that connects through flue gas pipeline; Be connected with smoke evacuation pipeline, new wind air inlet pipeline and hot-air pipeline on this new wind regenerative heat exchanger; The hot-air pipeline is provided with pressue device, and the hot-air pipeline feeds in the burial pit, and the hot-air pipeline that is in the burial pit is provided with some outgassing nozzles; Burial pit is provided with the UTILIZATION OF VESIDUAL HEAT IN pipeline that is connected with hot-blast stove; Be provided with the ceramic honeycomb heat storage in the described new wind regenerative heat exchanger.
The novel environment friendly safety heater technical scheme of above-described the utility model burial pit, further optimized technical scheme or technical characterictic are:
1, described ceramic honeycomb heat storage preferably adopts a plurality of ceramic honeycomb units in series to form; The equivalent diameter of the ceramic honeycomb checkerwork cell of each ceramic honeycomb unit is different; By the flow of flue gas direction, the ceramic honeycomb unit is arranged by the equivalent diameter of its checkerwork cell from big to small.Can reach the effect of enhanced heat exchange like this.
2, preferably leave the gap of 300 ~ 500mm between each ceramic honeycomb unit.
3, be provided with the low-heat value gas burner in the described hot-blast stove, this low-heat value gas burner is the diagonal angle misalignment on the hot-blast stove interior diameter arranges that its diagonal angle unfitness of butt joint is burning and forms the tangential circle diameter of cutting imaginary circle.The described hot-blast stove of the utility model, the low-heat value gas that can adopt iron and steel enterprise to underuse is a fuel, the eddy flow lift angle that burning forms makes flame rigidity strong, produces greater than the high-temperature flue gas more than 700 ℃ in the hot-blast stove outlet.
4, described outgassing nozzle preferably adopts three-dimensional matrice formula array uniform stationing.
5, the hot-air pipeline that is in the burial pit is the even coil pipe that is provided with.Also can take other stringing mode of evenly arranging, can make heating more even like this.
The described new wind regenerative heat exchanger of the utility model; Will be from hot-blast stove carry out heat exchange greater than the high-temperature flue gas more than 700 ℃ through ceramic honeycomb heat storage and air; The clean hot air that can produce 500 ~ 650 ℃ is regulated and control to temperature required through air distribution, can supply ingot mould, water cooled mo(u)ld strand, steel billet heating to use safely.
500 ~ 650 ℃ the clean hot air that the utility model utilization is produced is regulated and control to temperature required through air distribution, and safety heats ingot mould, water cooled mo(u)ld strand, steel billet equably.According to the physical dimension and the stacking form of ingot mould, water cooled mo(u)ld strand, steel billet, preferably adopt the even stagger arrangement of three-dimensional matrice formula array to layout, hot-air evenly heats ingot mould, water cooled mo(u)ld strand, steel billet through being installed in the nozzle ejection of each point.
In addition, around ingot mould, water cooled mo(u)ld strand, steel billet heating and the bottom can also adopt the adiabatic heat-insulation measure, the top adopt can be heat insulation enclosed hood, have the inlet scoop on it, in order to keep the circulation of internal heat air, help heat exchange.Simultaneously, the hot-air of drawing through the inlet scoop is transported to hot-blast stove through the UTILIZATION OF VESIDUAL HEAT IN pipeline, as the combustion-supporting air of using, reaches the raising flue-gas temperature, reduces fuel consumption, reaches purpose of energy saving.
The utility model can adopt discarded low calorie fuels burning; Through regenerative heat-exchange, produce the clean hot-air of high temperature, adopt the even stagger arrangement of three-dimensional matrice formula array to layout; Through heat conduction, convection type, heat ingot mould, water cooled mo(u)ld strand, steel billet safely, efficiently.
Compared with prior art, the utility model apparatus structure is provided with rationally, and heats is good; Can effectively regulate the cooling velocity of blank; And can solve ingot mould, water cooled mo(u)ld strand, the preheating of steel billet, heating problems, what solve steel mill's low-heat value gas utilizes problem again, reaches the purpose of safety, environmental protection, cleaner production; Simultaneously, promote the quality of product made from steel significantly.
Description of drawings
Fig. 1 is a kind of structural representation of the novel environment friendly safety heater of the utility model burial pit.
The specific embodiment
Following with reference to accompanying drawing, further describe the concrete technical scheme of the utility model, so that those skilled in the art understands the utility model further, and do not constitute restriction to its right.
Embodiment 1; With reference to Fig. 1, a kind of novel environment friendly safety heater of burial pit, this device are provided with the hot-blast stove 1 and new wind regenerative heat exchanger 3 that connects through flue gas pipeline 2; Be connected with smoke evacuation pipeline 4, new wind air inlet pipeline 5 and hot-air pipeline 6 on this new wind regenerative heat exchanger 3; Hot-air pipeline 6 is provided with pressue device 10, and hot-air pipeline 6 feeds in the burial pit 9, and the hot-air pipeline 6 that is in the burial pit 9 is provided with some outgassing nozzles 7; Burial pit 9 is provided with the UTILIZATION OF VESIDUAL HEAT IN pipeline 8 that is connected with hot-blast stove 1; Be provided with the ceramic honeycomb heat storage in the described new wind regenerative heat exchanger 3.
Embodiment 2; In the embodiment 1 described heater: described ceramic honeycomb heat storage adopts a plurality of ceramic honeycomb units in series to form; The equivalent diameter of the ceramic honeycomb checkerwork cell of each ceramic honeycomb unit is different; By the flow of flue gas direction, the ceramic honeycomb unit is arranged by the equivalent diameter of its checkerwork cell from big to small.
Embodiment 3, in the embodiment 2 described heaters: the gap of leaving 300 ~ 500mm between each ceramic honeycomb unit.
Embodiment 4; In any one described heater of embodiment 1-3: be provided with the low-heat value gas burner in the described hot-blast stove; This low-heat value gas burner is the diagonal angle misalignment on the hot-blast stove interior diameter arranges that its diagonal angle unfitness of butt joint is burning and forms the tangential circle diameter of cutting imaginary circle.
Embodiment 5, and in any one described heater of embodiment 1-4: described outgassing nozzle adopts three-dimensional matrice formula array uniform stationing.
Embodiment 6, in any one described heater of embodiment 1-5: be in the coil pipe of hot-air pipeline 6 for evenly being provided with in the burial pit 9.
During use; By low calorie fuels burning formation high-temperature flue gas in the hot-blast stove 1, get in the new wind regenerative heat exchanger 3 through flue gas pipeline 2, carry out heat exchange with the Cryogenic air of the wind air inlet pipeline 5 of making a fresh start; Hot-air after the intensification is sent into the burial pit 9 that is used for heating ingot mould, water cooled mo(u)ld strand or steel billet by hot-air pipeline 6 after pressurization; Through outgassing nozzle 7 hot-air spray is distributed in the burial pit 9, heating ingot mould, water cooled mo(u)ld strand or steel billet, the UTILIZATION OF VESIDUAL HEAT IN pipeline 8 that connects on the burial pit 9 will the Cryogenic air after heat exchange to send into hot-blast stove 1 combustion-supporting; Reach the raising flue-gas temperature, the effect of fuel saving.
Claims (6)
1. the novel environment friendly safety heater of a burial pit; It is characterized in that: this device is provided with the hot-blast stove and new wind regenerative heat exchanger that connects through flue gas pipeline; Be connected with smoke evacuation pipeline, new wind air inlet pipeline and hot-air pipeline on this new wind regenerative heat exchanger; The hot-air pipeline is provided with pressue device, and the hot-air pipeline feeds in the burial pit, and the hot-air pipeline that is in the burial pit is provided with some outgassing nozzles; Burial pit is provided with the UTILIZATION OF VESIDUAL HEAT IN pipeline that is connected with hot-blast stove; Be provided with the ceramic honeycomb heat storage in the described new wind regenerative heat exchanger.
2. heater according to claim 1; It is characterized in that: described ceramic honeycomb heat storage adopts a plurality of ceramic honeycomb units in series to form; The equivalent diameter of the ceramic honeycomb checkerwork cell of each ceramic honeycomb unit is different; By the flow of flue gas direction, the ceramic honeycomb unit is arranged by the equivalent diameter of its checkerwork cell from big to small.
3. heater according to claim 2 is characterized in that: the gap of leaving 300 ~ 500mm between each ceramic honeycomb unit.
4. heater according to claim 1; It is characterized in that: be provided with the low-heat value gas burner in the described hot-blast stove; This low-heat value gas burner is the diagonal angle misalignment on the hot-blast stove interior diameter arranges that its diagonal angle unfitness of butt joint is burning and forms the tangential circle diameter of cutting imaginary circle.
5. heater according to claim 1 is characterized in that: described outgassing nozzle adopts three-dimensional matrice formula array uniform stationing.
6. heater according to claim 1 is characterized in that: be in the coil pipe of hot-air pipeline for evenly being provided with in the burial pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201736269U CN202555786U (en) | 2012-04-23 | 2012-04-23 | Novel environment-friendly safety heating device for burial pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201736269U CN202555786U (en) | 2012-04-23 | 2012-04-23 | Novel environment-friendly safety heating device for burial pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202555786U true CN202555786U (en) | 2012-11-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201736269U Expired - Lifetime CN202555786U (en) | 2012-04-23 | 2012-04-23 | Novel environment-friendly safety heating device for burial pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202555786U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632206A (en) * | 2012-04-23 | 2012-08-15 | 江苏派尔钢铁节能技术有限公司 | Novel environment-friendly and safe heating device for burial pits and method |
| CN107904344A (en) * | 2017-11-09 | 2018-04-13 | 北京卡卢金热风炉技术有限公司 | A kind of heat regenerator and hot-blast stove flue gas residual-heat utilization method |
-
2012
- 2012-04-23 CN CN2012201736269U patent/CN202555786U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632206A (en) * | 2012-04-23 | 2012-08-15 | 江苏派尔钢铁节能技术有限公司 | Novel environment-friendly and safe heating device for burial pits and method |
| CN107904344A (en) * | 2017-11-09 | 2018-04-13 | 北京卡卢金热风炉技术有限公司 | A kind of heat regenerator and hot-blast stove flue gas residual-heat utilization method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121128 |