CN206847413U - A kind of stainless steel clad plate integrated casting and rolling production line residual neat recovering system - Google Patents
A kind of stainless steel clad plate integrated casting and rolling production line residual neat recovering system Download PDFInfo
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- 238000005096 rolling process Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 20
- 239000010935 stainless steel Substances 0.000 title claims abstract description 20
- 238000005266 casting Methods 0.000 title claims abstract description 15
- 239000002918 waste heat Substances 0.000 claims abstract description 151
- 238000010438 heat treatment Methods 0.000 claims abstract description 53
- 239000007789 gas Substances 0.000 claims abstract description 40
- 238000011084 recovery Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 239000010865 sewage Substances 0.000 claims description 10
- 238000002791 soaking Methods 0.000 claims description 8
- 230000000630 rising effect Effects 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 12
- 239000010959 steel Substances 0.000 abstract description 12
- 239000002131 composite material Substances 0.000 abstract description 10
- 238000005098 hot rolling Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 13
- 239000003546 flue gas Substances 0.000 description 13
- 239000012535 impurity Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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Abstract
本实用新型公开了一种不锈钢复合板铸轧一体化生产线余热回收系统，包括加热炉、余热回收装置，所述加热炉一侧设有余热回收装置，所述余热回收装置包括集气罩、余热锅炉一、余热锅炉二、集汽包，所述集气罩设于加热炉内部；集气总管一侧设有余热锅炉一，所述余热锅炉一一侧设有余热锅炉二，所述余热锅炉二上部一侧设有集汽包，蒸汽出口一侧设有蒸汽管，所述蒸汽管一侧设有若干均匀分的蒸汽喷头，所述蒸汽喷头位于预热区。本实用新型通过热轧加热炉余热回收再利用系统产生过热蒸汽，再次对预热区的钢锭进行预热，提高了热能的利用率，达到了节能减排的目的，减少了企业的生产成本，降低了环境的污染，可产生巨大的经济效益和社会效益。
The utility model discloses a waste heat recovery system for a stainless steel composite plate casting and rolling integrated production line, which comprises a heating furnace and a waste heat recovery device. Boiler 1, waste heat boiler 2, steam collection drum, the gas collection hood is installed inside the heating furnace; waste heat boiler 1 is installed on one side of the gas collection main pipe, and waste heat boiler 2 is installed on the side of the waste heat boiler 1, and the waste heat boiler 2. A steam collecting drum is arranged on one side of the upper part, and a steam pipe is arranged on one side of the steam outlet, and a plurality of evenly divided steam nozzles are arranged on one side of the steam pipe, and the steam nozzles are located in the preheating zone. The utility model generates superheated steam through the waste heat recovery and reuse system of the hot rolling heating furnace, and preheats the steel ingot in the preheating zone again, which improves the utilization rate of heat energy, achieves the purpose of energy saving and emission reduction, and reduces the production cost of the enterprise. Environmental pollution is reduced, and huge economic and social benefits can be produced.
Description
技术领域technical field
本实用新型属于不锈钢复合板铸轧一体化技术领域，特别涉及一种不锈钢复合板铸轧一体化生产线余热回收系统。The utility model belongs to the technical field of integrated casting and rolling of stainless steel composite plates, in particular to a waste heat recovery system for a production line of integrated casting and rolling of stainless steel composite plates.
背景技术Background technique
不锈钢坯加热炉是不锈钢热轧的重要生产设备之一，也是主要的耗能设备，由于板坯在炉内的传热主要是辐射传热，传热量的大小与绝对温度的四次方成正比，炉温的少量下降，会引起传递热量的较大变化，板坯吸收热量的减少，使其温升速度缓慢，只有钢坯进入加热段后，炉温才能达到1320℃，钢坯才能按照正常升温速度快速加热；因此，在加热炉回收段、预热段的板坯，其加热能力没有得到较好的发挥，板坯升温速度缓慢；不锈钢坯在加热及转至轧线进行轧制时，大量热量在空气中散发，造成了能源的浪费，降低了加热炉的热效率；目前提高加热炉的热效率有两种途径，一是让燃料产生的热量最大限度地留在炉内；二是将排出炉外的烟气余热加以充分回收利用；现有的加热炉烟气余热利用率较低，烟气量大且烟气温度较高，直接排放势必造成能源的浪费。The stainless steel slab heating furnace is one of the important production equipment for stainless steel hot rolling, and it is also the main energy-consuming equipment. Since the heat transfer of the slab in the furnace is mainly radiation heat transfer, the heat transfer is proportional to the fourth power of the absolute temperature , a small drop in the furnace temperature will cause a large change in the heat transfer, and the reduction in the heat absorbed by the slab will slow down the temperature rise. Rapid heating; therefore, the heating capacity of the slab in the recovery section and the preheating section of the heating furnace has not been well exerted, and the heating rate of the slab is slow; when the stainless steel slab is heated and transferred to the rolling line for rolling, a large amount of heat Distributed in the air, resulting in a waste of energy and reducing the thermal efficiency of the furnace; currently there are two ways to improve the thermal efficiency of the furnace, one is to keep the heat generated by the fuel in the furnace to the maximum extent; the other is to discharge it out of the furnace The waste heat of the flue gas is fully recovered and utilized; the utilization rate of the waste heat of the flue gas of the existing heating furnace is low, the volume of the flue gas is large and the temperature of the flue gas is high, and the direct discharge will inevitably cause a waste of energy.
发明内容Contents of the invention
本实用新型的目的是克服现有技术中不足，提供一种不锈钢复合板铸轧一体化生产线余热回收系统，通过热轧加热炉余热回收再利用系统产生过热蒸汽，再次对预热区的钢锭进行预热，提高了热能的利用率，达到了节能减排的目的，减少了企业的生产成本，降低了环境的污染，可产生巨大的经济效益和社会效益。The purpose of this utility model is to overcome the deficiencies in the prior art and provide a waste heat recovery system for the integrated production line of stainless steel clad plate casting and rolling. Superheated steam is generated by the waste heat recovery and reuse system of the hot rolling heating furnace, and the steel ingots in the preheating zone are heated again. Preheating improves the utilization rate of heat energy, achieves the purpose of energy saving and emission reduction, reduces the production cost of enterprises, reduces environmental pollution, and can produce huge economic and social benefits.
为了实现上述目的，本实用新型采用的技术方案是：In order to achieve the above object, the technical solution adopted by the utility model is:
一种不锈钢复合板铸轧一体化生产线余热回收系统，包括加热炉、余热回收装置，所述加热炉内部依次设有预热区、一次加热区、二次加热区、均热区，所述预热区、一次加热区、二次加热区、均热区通过隔板隔开，钢锭轧制前先在预热区进行预热，然后经过一次加热、二次加热、均热等工序进入轧线进行轧制；A waste heat recovery system for a stainless steel composite plate casting and rolling integrated production line, including a heating furnace and a waste heat recovery device. The inside of the heating furnace is sequentially provided with a preheating zone, a primary heating zone, a secondary heating zone, and a soaking zone. The hot zone, the primary heating zone, the secondary heating zone and the soaking zone are separated by partitions. The steel ingot is preheated in the preheating zone before rolling, and then enters the rolling line after the primary heating, secondary heating, soaking and other processes. rolling;
所述加热炉一侧设有余热回收装置，所述余热回收装置包括集气罩、余热锅炉一、余热锅炉二、集汽包，所述集气罩设于加热炉内部，加热炉中的高温烟气向加热炉顶部聚集，通过集气罩收集进行回收利用；所述集气罩上部一侧设有若干集气支管，所述集气支管数量至少为2个，若干集气支管通过集气总管连接，所述集气总管一侧设有余热锅炉一，所述余热锅炉一包括进气口、筒体、换热管、出气口，所述集气总管一端与进气口连接，所述进气口一侧设有人孔，便于清理余热锅炉一内部的烟尘及内部检修；所述筒体内部两端设有花板，两侧的花板之间设有若干均匀分布的换热管，所述花板下部一侧设有进水口，所述进水口用于向余热锅炉一内部加水；所述筒体下部一侧设有两个余热锅炉一下降管接口，所述余热锅炉一下降管接口一侧设有排污口，排污口用于排出余热锅炉一内部的杂质；所述筒体一侧设有热电偶温度计口，用于检测余热锅炉一内部的烟气温度；所述筒体另一侧设有出气口，所述出气口一侧设有人孔；所述筒体上部一侧设有出水口，所述出水口用于排放余热锅炉内部的水，所述出水口一侧设有两个余热锅炉一上升管接口；所述余热锅炉一一侧设有余热锅炉二，所述余热锅炉二包括进气口、筒体、换热管、出气口，余热锅炉二的进气口与余热锅炉一的出气口通过连接法兰连接；所述筒体内部两端设有花板，两侧的花板之间设有若干均匀分布的换热管，所述花板下部一侧设有进水口，所述进水口用于向余热锅炉二内部加水；所述筒体下部一侧设有两个余热锅炉二下降管接口，所述余热锅炉二下降管接口一侧设有排污口，排污口用于排出余热锅炉二内部的杂质；所述筒体上部一侧设有出水口，所述出水口用于排放余热锅炉内部的水，所述出水口一侧设有三个余热锅炉二上升管接口，所述筒体另一端设有出气口；所述余热锅炉二上部一侧设有集汽包，所述集汽包下部一侧设有余热锅炉二下降管，所述余热锅炉二下降管与余热锅炉二下降管接口连接，所述余热锅炉二下降管一侧设有三个余热锅炉二上升管，所述余热锅炉二上升管与余热锅炉二上升管接口连接，所述余热锅炉二上升管一侧设有两个余热锅炉一下降管，所述余热锅炉一下降管与余热锅炉一下降管接口连接，所述余热锅炉一下降管一侧设有两个余热锅炉一上升管，所述余热锅炉一上升管与余热锅炉一上升管接口连接，所述集汽包上部一侧设有压力表口，所述压力表口一侧设有安全阀接口，所述安全阀接口一侧设有若干蒸汽出口；所述蒸汽出口一侧设有蒸汽管，所述蒸汽管上设有截止阀，所述蒸汽管一侧设有若干均匀分的蒸汽喷头，所述蒸汽喷头位于预热区。One side of the heating furnace is provided with a waste heat recovery device, and the waste heat recovery device includes a gas collecting hood, a waste heat boiler 1, a waste heat boiler 2, and a steam collecting drum. The gas collecting hood is arranged inside the heating furnace, and the high temperature in the heating furnace The flue gas gathers at the top of the heating furnace and is collected by the gas collection hood for recycling; there are several gas collection branch pipes on the upper side of the gas collection hood, and the number of the gas collection branch pipes is at least 2. The main pipe is connected. One side of the gas collection main pipe is provided with a waste heat boiler 1. The waste heat boiler 1 includes an air inlet, a cylinder, a heat exchange tube, and a gas outlet. One end of the gas collection main pipe is connected to the air inlet. There is a manhole on one side of the air inlet, which is convenient for cleaning the smoke and dust inside the waste heat boiler and internal maintenance; there are flower plates at both ends of the cylinder, and a number of evenly distributed heat exchange tubes are arranged between the flower plates on both sides. One side of the lower part of the flower plate is provided with a water inlet, and the water inlet is used to add water to the waste heat boiler; one side of the lower part of the cylinder is provided with two waste heat boiler-down pipe interfaces, and the waste heat boiler-down pipe One side of the interface is provided with a sewage outlet, and the sewage outlet is used to discharge impurities inside the waste heat boiler; one side of the cylinder is provided with a thermocouple thermometer port, which is used to detect the flue gas temperature inside the waste heat boiler; the other side of the cylinder is One side is provided with an air outlet, and one side of the air outlet is provided with a manhole; the upper side of the cylinder is provided with a water outlet, and the water outlet is used to discharge the water inside the waste heat boiler, and one side of the water outlet is provided with Two waste heat boiler one riser pipe interfaces; one side of the waste heat boiler one is provided with a waste heat boiler two, and the waste heat boiler two includes an air inlet, a cylinder body, a heat exchange tube, and an air outlet. The gas outlet of the waste heat boiler 1 is connected by a connecting flange; there are flower plates at both ends of the cylinder, and a number of evenly distributed heat exchange tubes are arranged between the flower plates on both sides. Water inlet, the water inlet is used to add water to the second waste heat boiler; the lower side of the cylinder body is provided with two waste heat boiler second downpipe interfaces, and the side of the waste heat boiler second downpipe interface is provided with a sewage outlet. The outlet is used to discharge the impurities inside the waste heat boiler; the upper side of the cylinder is provided with a water outlet, and the water outlet is used to discharge the water inside the waste heat boiler, and the side of the water outlet is provided with three waste heat boiler second rising pipes The other end of the cylinder is provided with an air outlet; the upper side of the second waste heat boiler is provided with a steam collecting drum, and the lower side of the steam collecting drum is provided with a second descending pipe of the waste heat boiler, and the second descending pipe of the waste heat boiler It is connected to the interface of the waste heat boiler second downpipe, and one side of the waste heat boiler second downpipe is provided with three waste heat boiler second uppipes, the waste heat boiler second uppipe is connected to the interface of the waste heat boiler second uppipe, and the waste heat boiler second uppipe One side is provided with two waste heat boiler-down pipes, and the waste heat boiler-down pipe is connected with the waste heat boiler-down pipe interface. The waste heat boiler-down pipe is provided with two waste heat boiler-rising pipes on one side. The first riser pipe of the boiler is connected with the first riser pipe interface of the waste heat boiler. A pressure gauge port is provided on the upper side of the steam collecting drum, a safety valve port is provided on the side of the pressure gauge port, and several steam outlet; a steam pipe is arranged on one side of the steam outlet, and the steam A shut-off valve is provided on the steam pipe, and a number of evenly divided steam nozzles are arranged on one side of the steam pipe, and the steam nozzles are located in the preheating zone.
优选的，所述集气总管一侧设有引风机，当钢锭从加热炉中转运至轧线时，打开引风机，将热量最大限度的回收，提高了热能的利用率，降低了烟气的排放。Preferably, an induced draft fan is provided on one side of the gas collection main pipe, and when the steel ingot is transferred from the heating furnace to the rolling line, the induced draft fan is turned on to recover the heat to the greatest extent, which improves the utilization rate of heat energy and reduces the emission of flue gas. emission.
优选的，所述蒸汽喷头一侧设有第一角度调节装置，所述第一角度调节装置一侧设有第二角度调节装置，第一角度调节装置和第二角度调节装置配合使用，调整高温蒸汽的喷吹高度和喷吹角度，提高了钢锭预热的效果。Preferably, a first angle adjustment device is provided on one side of the steam spray head, a second angle adjustment device is provided on one side of the first angle adjustment device, and the first angle adjustment device and the second angle adjustment device are used together to adjust the high temperature The steam injection height and injection angle improve the effect of steel ingot preheating.
本实用新型与现有技术相比较有益效果表现在：Compared with the prior art, the utility model has beneficial effects as follows:
1)通过热轧加热炉余热回收再利用系统产生过热蒸汽，再次对预热区的钢锭进行预热，提高了热能的利用率，达到了节能减排的目的，减少了企业的生产成本，降低了环境的污染，可产生巨大的经济效益和社会效益；1) The superheated steam is generated by the waste heat recovery and reuse system of the hot rolling heating furnace, and the steel ingot in the preheating zone is preheated again, which improves the utilization rate of heat energy, achieves the purpose of energy saving and emission reduction, reduces the production cost of the enterprise, and reduces Reduce environmental pollution, can produce huge economic and social benefits;
2)集气总管一侧设有引风机，当钢锭从加热炉中转运至轧线时，打开引风机，将热量最大限度的回收，提高了热能的利用率，降低了烟气的排放；2) There is an induced draft fan on one side of the gas collection main pipe. When the steel ingot is transferred from the heating furnace to the rolling line, the induced draft fan is turned on to recover the heat to the maximum, which improves the utilization rate of heat energy and reduces the emission of flue gas;
3)蒸汽喷头一侧设有第一角度调节装置，所述第一角度调节装置一侧设有第二角度调节装置，第一角度调节装置和第二角度调节装置配合使用，调整高温蒸汽的喷吹高度和喷吹角度，提高了钢锭预热的效果。3) A first angle adjustment device is provided on one side of the steam spray head, and a second angle adjustment device is provided on one side of the first angle adjustment device. Blowing height and blowing angle improve the effect of ingot preheating.
附图说明Description of drawings
附图1是本实用新型一种不锈钢复合板铸轧一体化生产线余热回收系统结构示意图；Accompanying drawing 1 is a structural schematic diagram of waste heat recovery system of a stainless steel composite plate cast-rolling integrated production line of the utility model;
附图2是本实用新型一种不锈钢复合板铸轧一体化生产线余热回收系统中加热炉内部结构示意图；Accompanying drawing 2 is a schematic diagram of the internal structure of the heating furnace in the waste heat recovery system of a stainless steel composite plate casting and rolling integrated production line of the utility model;
附图3是本实用新型一种不锈钢复合板铸轧一体化生产线余热回收系统中余热回收装置俯视图；Accompanying drawing 3 is the top view of the waste heat recovery device in the waste heat recovery system of a stainless steel composite plate casting and rolling integrated production line of the utility model;
附图4是本实用新型一种不锈钢复合板铸轧一体化生产线余热回收系统中A-A剖面图；Accompanying drawing 4 is the A-A sectional view in the waste heat recovery system of a stainless steel clad plate cast-rolling integrated production line of the utility model;
附图5是本实用新型一种不锈钢复合板铸轧一体化生产线余热回收系统中余热锅炉二内部结构示意图；Accompanying drawing 5 is a schematic diagram of the internal structure of waste heat boiler 2 in the waste heat recovery system of a stainless steel clad plate casting and rolling integrated production line of the utility model;
附图6是本实用新型一种不锈钢复合板铸轧一体化生产线余热回收系统中B局部放大图；Accompanying drawing 6 is the partial enlarged view of B in the waste heat recovery system of a stainless steel composite plate casting and rolling integrated production line of the utility model;
图中：11-加热炉，12-余热回收装置，101-预热区，102-一次加热区，103-二次加热区，104-均热区，105-隔板，201-集气罩，202-集气支管，203-集气总管，204-引风机，205-余热锅炉一，206-余热锅炉二，207-集汽包，208-筒体，209-换热管，210-进气口，211-人孔，212-余热锅炉一上升管，213-热电偶温度计口，214-进水口，215-出水口，216-余热锅炉二下降管接口，217-排污口，218-余热锅炉二上升管接口，219-连接法兰，220-余热锅炉一下降管，221-余热锅炉二下降管，222-余热锅炉二上升管，223-蒸汽出口，224-安全阀接口，225-压力表口，226-蒸汽管，227-截止阀，228-蒸汽喷头，229-第一角度调节装置，230-第二角度调节装置，231-出气口，232-花板。In the figure: 11-heating furnace, 12-waste heat recovery device, 101-preheating zone, 102-primary heating zone, 103-secondary heating zone, 104-soaking zone, 105-baffle plate, 201-gathering hood, 202-gas collection branch pipe, 203-gas collection main pipe, 204-induced fan, 205-waste heat boiler 1, 206-waste heat boiler 2, 207-steam collection drum, 208-cylinder, 209-heat exchange tube, 210-intake Port, 211-manhole, 212-rising pipe of waste heat boiler, 213-thermocouple thermometer port, 214-water inlet, 215-water outlet, 216-connection of waste heat boiler 2 descending pipe, 217-sewage outlet, 218-waste heat boiler Second riser pipe interface, 219-connecting flange, 220-first downcomer of waste heat boiler, 221-second downcomer of waste heat boiler, 222-second riser pipe of waste heat boiler, 223-steam outlet, 224-safety valve port, 225-pressure gauge Mouth, 226-steam pipe, 227-stop valve, 228-steam nozzle, 229-first angle adjustment device, 230-second angle adjustment device, 231-air outlet, 232-flower plate.
具体实施方式detailed description
为方便本技术领域人员的理解，下面结合附图1-6，对本实用新型的技术方案进一步具体说明。In order to facilitate the understanding of those skilled in the art, the technical solution of the present utility model is further described in detail below in conjunction with accompanying drawings 1-6.
一种不锈钢复合板铸轧一体化生产线余热回收系统，包括加热炉11、余热回收装置12，所述加热炉11内部依次设有预热区101、一次加热区102、二次加热区103、均热区104，所述预热区101、一次加热区102、二次加热区103、均热区104通过隔板105隔开，钢锭轧制前先在预热区101进行预热，然后经过一次加热、二次加热、均热等工序进入轧线进行轧制；A waste heat recovery system for a stainless steel composite plate casting and rolling integrated production line, comprising a heating furnace 11 and a waste heat recovery device 12. The heating furnace 11 is provided with a preheating zone 101, a primary heating zone 102, a secondary heating zone 103, and a heating zone in sequence. Hot zone 104, the preheating zone 101, the primary heating zone 102, the secondary heating zone 103, and the soaking zone 104 are separated by a partition 105, and the steel ingot is preheated in the preheating zone 101 before rolling, and then passes through once Heating, secondary heating, soaking and other processes enter the rolling line for rolling;
所述加热炉11一侧设有余热回收装置12，所述余热回收装置包括集气罩201、余热锅炉一205、余热锅炉二206、集汽包207，所述集气罩201设于加热炉11内部，加热炉11中的高温烟气向加热炉11顶部聚集，通过集气罩201收集进行回收利用；所述集气罩201上部一侧设有若干集气支管202，所述集气支管202数量至少为2个，若干集气支管202通过集气总管203连接，所述集气总管203一侧设有余热锅炉一205，所述余热锅炉一205包括进气口210、筒体208、换热管209、出气口231，所述集气总管203一端与进气口210连接，所述进气口210一侧设有人孔211，便于清理余热锅炉一205内部的烟尘及内部检修；所述筒体208内部两端设有花板232，两侧的花板232之间设有若干均匀分布的换热管209，所述花板232下部一侧设有进水口214，所述进水口214用于向余热锅炉一205内部加水；所述筒体208下部一侧设有两个余热锅炉一下降管接口，所述余热锅炉一下降管接口一侧设有排污口217，排污口217用于排出余热锅炉一205内部的杂质；所述筒体208一侧设有热电偶温度计口213，用于检测余热锅炉一205内部的烟气温度；所述筒体208另一侧设有出气口231，所述出气口231一侧设有人孔211；所述筒体208上部一侧设有出水口215，所述出水口215用于排放余热锅炉内部的水，所述出水口215一侧设有两个余热锅炉一上升管接口；所述余热锅炉一205一侧设有余热锅炉二206，所述余热锅炉二206包括进气口210、筒体208、换热管209、出气口231，余热锅炉二206的进气口210与余热锅炉一205的出气口231通过连接法兰219连接；所述筒体208内部两端设有花板232，两侧的花板232之间设有若干均匀分布的换热管209，所述花板232下部一侧设有进水口214，所述进水口214用于向余热锅炉二206内部加水；所述筒体208下部一侧设有两个余热锅炉二下降管接口216，所述余热锅炉二下降管接口216一侧设有排污口217，排污口217用于排出余热锅炉二206内部的杂质；所述筒体208上部一侧设有出水口215，所述出水口215用于排放余热锅炉内部的水，所述出水口215一侧设有三个余热锅炉二上升管接口218，所述筒体208另一端设有出气口231；所述余热锅炉二206上部一侧设有集汽包207，所述集汽包207下部一侧设有余热锅炉二下降管221，所述余热锅炉二下降管221与余热锅炉二下降管接口216连接，所述余热锅炉二下降管221一侧设有三个余热锅炉二上升管222，所述余热锅炉二上升管222与余热锅炉二上升管接口218连接，所述余热锅炉二上升管222一侧设有两个余热锅炉一下降管220，所述余热锅炉一下降管220与余热锅炉一下降管接口连接，所述余热锅炉一下降管220一侧设有两个余热锅炉一上升管212，所述余热锅炉一上升管212与余热锅炉一上升管接口连接，所述集汽包207上部一侧设有压力表口225，所述压力表口225一侧设有安全阀接口224，所述安全阀接口224一侧设有若干蒸汽出口223；所述蒸汽出口223一侧设有蒸汽管226，所述蒸汽管226上设有截止阀227，所述蒸汽管226一侧设有若干均匀分的蒸汽喷头228，所述蒸汽喷头228位于预热区101。One side of the heating furnace 11 is provided with a waste heat recovery device 12, and the waste heat recovery device includes a gas collecting hood 201, a waste heat boiler 1 205, a waste heat boiler 2 206, and a steam collecting drum 207, and the gas collecting hood 201 is arranged on the heating furnace 11, the high-temperature flue gas in the heating furnace 11 gathers to the top of the heating furnace 11, and is collected by the gas collecting hood 201 for recycling; the upper side of the gas collecting hood 201 is provided with several gas collecting branch pipes 202, and the gas collecting branch pipes The number of 202 is at least 2, and several gas-collecting branch pipes 202 are connected through the gas-collecting main pipe 203. One side of the gas-collecting main pipe 203 is provided with a waste heat boiler 205, and the waste heat boiler 1 205 includes an air inlet 210, a cylinder 208, Heat exchange tube 209, gas outlet 231, one end of the gas collecting main pipe 203 is connected to the air inlet 210, and the side of the air inlet 210 is provided with a manhole 211, which is convenient for cleaning the smoke and dust inside the waste heat boiler-205 and internal maintenance; Both ends of the cylinder 208 are provided with flower plates 232, and a number of evenly distributed heat exchange tubes 209 are arranged between the flower plates 232 on both sides. 214 is used to add water to the waste heat boiler-205; the lower side of the cylinder 208 is provided with two waste heat boiler-down pipe interfaces, and the side of the waste heat boiler-down pipe interface is provided with a sewage outlet 217, and the sewage outlet 217 is used for To discharge impurities inside the waste heat boiler 205; one side of the cylinder 208 is provided with a thermocouple thermometer port 213 for detecting the flue gas temperature inside the waste heat boiler 205; the other side of the cylinder 208 is provided with a gas outlet 231, the side of the air outlet 231 is provided with a manhole 211; the upper side of the cylinder 208 is provided with a water outlet 215, the water outlet 215 is used to discharge the water inside the waste heat boiler, and the side of the water outlet 215 is provided There are two waste heat boiler first ascending pipe interfaces; the first waste heat boiler 205 is provided with a second waste heat boiler 206, and the second waste heat boiler 206 includes an air inlet 210, a cylinder 208, a heat exchange tube 209, and an air outlet 231, The air inlet 210 of the waste heat boiler 2 206 is connected with the gas outlet 231 of the waste heat boiler 1 205 through the connecting flange 219; the two ends of the cylinder 208 are provided with flower plates 232, and there are several flower plates 232 on both sides. Evenly distributed heat exchange tubes 209, the lower side of the flower plate 232 is provided with a water inlet 214, and the water inlet 214 is used to add water to the waste heat boiler 2 206; the lower side of the cylinder 208 is provided with two waste heat Boiler 2 downcomer interface 216, the waste heat boiler 2 downcomer interface 216 side is provided with a sewage outlet 217, and the sewage outlet 217 is used to discharge impurities inside the waste heat boiler 206; the upper side of the cylinder 208 is provided with a water outlet 215, the water outlet 215 is used to discharge the water inside the waste heat boiler, one side of the water outlet 215 is provided with three waste heat boiler second riser pipe interfaces 218, and the other end of the cylinder 208 is provided with an air outlet 231; the waste heat Boiler two 206 top side is provided with steam collection drum 207, and described steam collection drum One side of the lower part of 207 is provided with waste heat boiler second downpipe 221, said waste heat boiler second downpipe 221 is connected with waste heat boiler second downpipe interface 216, and one side of said waste heat boiler second downpipe 221 is provided with three waste heat boiler second uppipe 222 , the second rising pipe 222 of the waste heat boiler is connected to the second rising pipe interface 218 of the waste heat boiler, two waste heat boiler first descending pipes 220 are arranged on one side of the second waste heat boiler rising pipe 222, and the first waste heat boiler descending pipe 220 is connected to the Boiler-down pipe interface connection, two waste heat boiler-rising pipes 212 are arranged on one side of the waste heat boiler-down pipe 220, the waste heat boiler-rising pipe 212 is connected with the waste heat boiler-rising pipe interface, and the steam collecting drum One side of the upper part of 207 is provided with a pressure gauge port 225, and one side of the pressure gauge port 225 is provided with a safety valve interface 224, and one side of the safety valve interface 224 is provided with several steam outlets 223; one side of the steam outlet 223 is provided with The steam pipe 226 is provided with a shut-off valve 227 , and one side of the steam pipe 226 is provided with several evenly divided steam nozzles 228 , and the steam nozzles 228 are located in the preheating zone 101 .
所述集气总管203一侧设有引风机204，当钢锭从加热炉11中转运至轧线时，打开引风机204，将热量最大限度的回收，提高了热能的利用率，降低了烟气的排放。An induced draft fan 204 is provided on one side of the gas collection main pipe 203. When the steel ingot is transferred from the heating furnace 11 to the rolling line, the induced draft fan 204 is turned on to recover the heat to the maximum extent, which improves the utilization rate of heat energy and reduces the flue gas emissions.
所述蒸汽喷头228一侧设有第一角度调节装置229，所述第一角度调节装置229一侧设有第二角度调节装置230，第一角度调节装置229和第二角度调节装置230配合使用，调整高温蒸汽的喷吹高度和喷吹角度，提高了钢锭预热的效果。One side of the steam spray head 228 is provided with a first angle adjustment device 229, and one side of the first angle adjustment device 229 is provided with a second angle adjustment device 230, and the first angle adjustment device 229 and the second angle adjustment device 230 are used together , adjust the injection height and injection angle of high-temperature steam, and improve the effect of steel ingot preheating.
一种不锈钢复合板铸轧一体化生产线余热回收系统，其工作原理在于：钢锭在加热炉中加热时，炉内温度较高，热烟气密度较小向加热炉上部聚集，被集气罩收集，热烟气通过余热锅炉一和余热锅炉二在集汽包中产生大量的高温蒸汽，同时将热烟气进行降温，高温蒸汽通过蒸汽管再次回到加热炉中的预热区对钢锭进行预热，最大限度的提高了热量的利用率。A waste heat recovery system for a stainless steel composite plate casting and rolling integrated production line. Its working principle is: when the steel ingot is heated in the heating furnace, the temperature in the furnace is high, and the density of the hot smoke is low. , the hot flue gas passes through the waste heat boiler 1 and waste heat boiler 2 to generate a large amount of high-temperature steam in the steam collecting drum, and at the same time cools the hot flue gas, and the high-temperature steam returns to the preheating zone in the heating furnace through the steam pipe to preheat the steel ingot Heat, maximize the utilization of heat.
以上内容仅仅是对本实用新型的结构所作的举例和说明，所属本技术领域的技术人员对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，只要不偏离实用新型的结构或者超越本权利要求书所定义的范围，均应属于本实用新型的保护范围。The above content is only an example and description of the structure of the present utility model. Those skilled in the art make various modifications or supplements to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the utility model. The structure or beyond the scope defined in the claims shall belong to the protection scope of the present utility model.
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| CN118778740A (en) * | 2024-09-10 | 2024-10-15 | 江苏大庚不锈钢有限公司 | An adaptive temperature control system for hot-rolled stainless steel plate production |
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| CN118778740A (en) * | 2024-09-10 | 2024-10-15 | 江苏大庚不锈钢有限公司 | An adaptive temperature control system for hot-rolled stainless steel plate production |
| CN118778740B (en) * | 2024-09-10 | 2024-11-29 | 江苏大庚不锈钢有限公司 | An adaptive temperature control system for hot-rolled stainless steel plate production |
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