CN204438718U - Residual heat from boiler fume drying brown coal system and boiler smoke system - Google Patents

Residual heat from boiler fume drying brown coal system and boiler smoke system Download PDF

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CN204438718U
CN204438718U CN201420781818.7U CN201420781818U CN204438718U CN 204438718 U CN204438718 U CN 204438718U CN 201420781818 U CN201420781818 U CN 201420781818U CN 204438718 U CN204438718 U CN 204438718U
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flue gas
boiler
circulating water
lignite
heat exchanger
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张润盘
董丽娟
贾绍广
李智
杨立辉
阎占良
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PowerChina Hebei Electric Power Engineering Co Ltd
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Hebei Electric Power Design and Research Institute
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

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Abstract

本实用新型公开了一种锅炉烟气余热干燥褐煤系统及锅炉烟气系统;所述锅炉烟气余热干燥褐煤系统包括烟气-循环水换热器、空气-循环水换热器、干燥气引风机、褐煤干燥塔、给煤机和出料机;所述锅炉烟气系统包括省煤器、空气预热器、干式静电除尘器、烟气引风机、脱硫吸收塔、湿式静电除尘器以及所述锅炉烟气余热干燥褐煤系统。本实用新型最大程度的利用了锅炉烟气中的热量,提高了燃用褐煤的机组的燃煤品质,提高了锅炉效率,并且使烟气排放达到超洁净水平。

The utility model discloses a boiler flue gas waste heat drying lignite system and a boiler flue gas system; the boiler flue gas waste heat drying lignite system comprises a flue gas-circulating water heat exchanger, an air-circulating water heat exchanger, a drying gas Fan, lignite drying tower, coal feeder and discharger; the boiler flue gas system includes economizer, air preheater, dry electrostatic precipitator, flue gas induced draft fan, desulfurization absorption tower, wet electrostatic precipitator and The boiler flue gas waste heat drying lignite system. The utility model utilizes the heat in the flue gas of the boiler to the greatest extent, improves the coal-fired quality of the lignite-burning unit, improves the efficiency of the boiler, and makes the flue gas discharge reach an ultra-clean level.

Description

锅炉烟气余热干燥褐煤系统及锅炉烟气系统Boiler flue gas waste heat drying lignite system and boiler flue gas system

技术领域 technical field

本实用新型涉及燃煤电厂的烟气处理系统,具体涉及一种锅炉烟气余热干燥褐煤系统及锅炉烟气系统。 The utility model relates to a flue gas treatment system of a coal-fired power plant, in particular to a boiler flue gas waste heat drying lignite system and a boiler flue gas system.

背景技术 Background technique

对火力发电厂讲,锅炉热损失中最大的是排烟热损失。一般来说,排烟温度每降低l0℃,锅炉热效率提高大约0.5%至0.6%。因此,锅炉排烟是一个潜力很大的余热资源。目前,新上大型火力发电机组的烟气系统中大多取消了GGH系统,这就使得进入脱硫系统的烟气温度较高,一般为130℃左右,褐煤机组可能达到145℃。为了脱硫工艺达到最佳的工作温度,即烟气温度80℃~90℃,目前,许多新建脱硫系统设置了喷淋降温系统。由此可见,进入脱硫系统的烟气温度与最佳脱硫工作温度之间几十度的温差,蕴含着巨大的热量,就这样浪费掉了。因此,对该部分烟气余热的回收利用是非常必要的。 For thermal power plants, the largest boiler heat loss is exhaust heat loss. Generally speaking, every time the exhaust gas temperature decreases by 10°C, the thermal efficiency of the boiler increases by about 0.5% to 0.6%. Therefore, boiler exhaust gas is a waste heat resource with great potential. At present, most of the flue gas systems of new large-scale thermal power generation units have canceled the GGH system, which makes the temperature of the flue gas entering the desulfurization system relatively high, generally around 130 °C, and the lignite unit may reach 145 °C. In order to achieve the best working temperature for the desulfurization process, that is, the flue gas temperature is 80°C to 90°C. At present, many new desulfurization systems are equipped with spray cooling systems. It can be seen that the temperature difference of tens of degrees between the flue gas temperature entering the desulfurization system and the optimal desulfurization working temperature contains huge heat, which is wasted in this way. Therefore, it is very necessary to recover and utilize the waste heat of this part of the flue gas.

实用新型内容 Utility model content

有鉴于此,本实用新型的目的在于提供一种锅炉烟气余热干燥褐煤系统及锅炉烟气系统,利用锅炉烟气余热干燥电厂燃用的高水分褐煤,提高入炉煤的低位发热量(提高燃煤的品质),提高锅炉效率。 In view of this, the purpose of this utility model is to provide a boiler flue gas waste heat drying lignite system and a boiler flue gas system, use the boiler flue gas waste heat to dry the high-moisture lignite used in power plants, and increase the low calorific value of the furnace coal (increase quality of coal fired), improve boiler efficiency.

为达到上述目的,本实用新型提供如下技术方案: In order to achieve the above object, the utility model provides the following technical solutions:

本实用新型公开了一种锅炉烟气余热干燥褐煤系统,包括烟气-循环水换热器、空气-循环水换热器、干燥气引风机、褐煤干燥塔、给煤机和出料机,所述烟气-循环水换热器布置在锅炉尾部烟道内,所述空气-循环水换热器的循环水管道与烟气-循环水换热器的循环水管道连通,所述褐煤干燥塔下部的入风管道与空气-循环水换热器连通,所述褐煤干燥塔上部的出风管道通过干燥气引风机与锅炉炉膛连通,所述给煤机与褐煤干燥塔顶部的入煤口连通,所述出料机与褐煤干燥塔底部的出煤口连通。 The utility model discloses a boiler flue gas waste heat drying lignite system, which comprises a flue gas-circulating water heat exchanger, an air-circulating water heat exchanger, a drying gas induced draft fan, a lignite drying tower, a coal feeder and a discharger. The flue gas-circulating water heat exchanger is arranged in the tail flue of the boiler, the circulating water pipe of the air-circulating water heat exchanger communicates with the circulating water pipe of the flue gas-circulating water heat exchanger, and the lignite drying tower The air inlet pipe at the lower part communicates with the air-circulating water heat exchanger, the air outlet pipe at the upper part of the lignite drying tower communicates with the boiler furnace through the dry gas induced draft fan, and the coal feeder communicates with the coal inlet at the top of the lignite drying tower , the discharge machine communicates with the coal outlet at the bottom of the lignite drying tower.

上述技术方案中,所述烟气-循环水换热器和空气-循环水换热器均为管式换热器,所述烟气-循环水换热器的循环水管道和空气-循环水换热器的循环水管道均为管式换热器的管程通道。 In the above technical solution, both the flue gas-circulating water heat exchanger and the air-circulating water heat exchanger are tubular heat exchangers, and the circulating water pipes and the air-circulating water of the flue gas-circulating water heat exchanger The circulating water pipes of the heat exchanger are the tube-side channels of the tubular heat exchanger.

上述技术方案中,所述给煤机和出料机均为皮带输送机。 In the above technical solution, both the coal feeder and the discharger are belt conveyors.

本实用新型还公开了一种包含所述锅炉烟气余热干燥褐煤系统的锅炉烟气系统,包括省煤器、空气预热器、干式静电除尘器、烟气引风机、脱硫吸收塔、湿式静电除尘器以及所述锅炉烟气余热干燥褐煤系统,所述省煤器、空气预热器和干式静电除尘器从上游至下游依次布置在锅炉尾部烟道内,所述干式静电除尘器的出口通过烟气引风机与脱硫吸收塔下部连通,所述脱硫吸收塔上部与湿式静电除尘器的入口连通,所述湿式静电除尘器的出口与烟囱连通。 The utility model also discloses a boiler flue gas system comprising the boiler flue gas waste heat drying lignite system, including an economizer, an air preheater, a dry electrostatic precipitator, a flue gas induced draft fan, a desulfurization absorption tower, a wet type The electrostatic precipitator and the boiler flue gas waste heat drying lignite system, the economizer, the air preheater and the dry electrostatic precipitator are sequentially arranged in the tail flue of the boiler from upstream to downstream, and the dry electrostatic precipitator The outlet communicates with the lower part of the desulfurization absorption tower through the flue gas induced fan, the upper part of the desulfurization absorption tower communicates with the inlet of the wet electrostatic precipitator, and the outlet of the wet electrostatic precipitator communicates with the chimney.

作为本实用新型的进一步改进,所述锅炉烟气余热干燥褐煤系统的烟气-循环水换热器数量为两个,两个烟气-循环水换热器相互串联且分别位于干式静电除尘器的上游和下游。 As a further improvement of the utility model, the number of flue gas-circulating water heat exchangers in the boiler flue gas waste heat drying lignite system is two, and the two flue gas-circulating water heat exchangers are connected in series and are respectively located in the dry electrostatic precipitator upstream and downstream of the device.

本实用新型的有益效果在于: The beneficial effects of the utility model are:

本实用新型利用锅炉烟气余热干燥电厂燃用的高水分褐煤,最大程度的利用了锅炉烟气中的热量,提高了燃用褐煤的机组的燃煤品质,提高了锅炉效率;本实用新型充分结合了“能源分级利用”的理念,利用低品位热能来提高高品位能源的品质,同时丰富了烟气余热利用的途径。同时,本实用新型在烟气系统中设置了高效的烟气处理设备,使主系统烟气排放达到超洁净水平。本实用新型可应用于新建或改造大中型燃煤供热电厂烟气系统,即可达到更高的安全、经济和环境效益。 The utility model utilizes the residual heat of boiler flue gas to dry the high-moisture lignite used in the power plant, utilizes the heat in the boiler flue gas to the greatest extent, improves the coal quality of the units burning lignite, and improves the efficiency of the boiler; the utility model fully Combined with the concept of "energy graded utilization", low-grade heat energy is used to improve the quality of high-grade energy, and at the same time, it enriches the way to utilize flue gas waste heat. At the same time, the utility model is equipped with efficient flue gas treatment equipment in the flue gas system, so that the flue gas emission of the main system can reach an ultra-clean level. The utility model can be applied to newly-built or reformed flue gas systems of large and medium-sized coal-fired heat-supply power plants, and can achieve higher safety, economic and environmental benefits.

附图说明 Description of drawings

为了使本实用新型的目的、技术方案和有益效果更加清楚,本实用新型提供如下附图进行说明: In order to make the purpose, technical solutions and beneficial effects of the utility model clearer, the utility model provides the following drawings for illustration:

图1为本实用新型的结构示意图。 Fig. 1 is the structural representation of the utility model.

图中:1、烟气-循环水换热器,2、空气-循环水换热器,3、干燥气引风机,4、褐煤干燥塔,5、给煤机,6、出料机,7、锅炉炉膛,8、省煤器,9、空气预热器,10、干式静电除尘器,11、烟气引风机,12、脱硫吸收塔,13、湿式静电除尘器。 In the figure: 1. Flue gas-circulating water heat exchanger, 2. Air-circulating water heat exchanger, 3. Dry gas induced draft fan, 4. Lignite drying tower, 5. Coal feeder, 6. Discharge machine, 7 , Boiler furnace, 8. Economizer, 9. Air preheater, 10. Dry electrostatic precipitator, 11. Flue gas induced draft fan, 12. Desulfurization absorption tower, 13. Wet electrostatic precipitator.

具体实施方式 Detailed ways

下面将结合附图,对本实用新型的优选实施例进行详细的描述。 The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

图1为本实用新型的结构示意图,如图所示,锅炉烟气余热干燥褐煤系统包括烟气-循环水换热器1、空气-循环水换热器2、干燥气引风机3、褐煤干燥塔4、给煤机5和出料机6,所述烟气-循环水换热器1布置在锅炉尾部烟道内,所述空气-循环水换热器2的循环水管道与烟气-循环水换热器1的循环水管道连通,所述褐煤干燥塔4下部的入风管道与空气-循环水换热器2连通,所述褐煤干燥塔4上部的出风管道通过干燥气引风机3与锅炉炉膛7连通,所述给煤机5与褐煤干燥塔4顶部的入煤口连通,所述出料机6与褐煤干燥塔4底部的出煤口连通。 Fig. 1 is a schematic structural view of the utility model, as shown in the figure, the boiler flue gas waste heat drying lignite system includes a flue gas-circulating water heat exchanger 1, an air-circulating water heat exchanger 2, a drying gas induced draft fan 3, and a lignite drying Tower 4, coal feeder 5 and discharger 6, the flue gas-circulating water heat exchanger 1 is arranged in the tail flue of the boiler, the circulating water pipe of the air-circulating water heat exchanger 2 is connected with the flue gas-circulating The circulating water pipeline of the water heat exchanger 1 is connected, the air inlet pipeline at the bottom of the lignite drying tower 4 is connected with the air-circulating water heat exchanger 2, and the air outlet pipeline at the upper part of the lignite drying tower 4 is passed through the drying air induced draft fan 3 It communicates with the boiler furnace 7, the coal feeder 5 communicates with the coal inlet at the top of the lignite drying tower 4, and the discharger 6 communicates with the coal outlet at the bottom of the lignite drying tower 4.

锅炉烟气系统,包括省煤器8、空气预热器9、干式静电除尘器10、烟气引风机11、脱硫吸收塔12、湿式静电除尘器13以及所述锅炉烟气余热干燥褐煤系统,所述省煤器8、空气预热器9和干式静电除尘器10从上游至下游依次布置在锅炉尾部烟道内,所述干式静电除尘器10的出口通过烟气引风机11与脱硫吸收塔12下部连通,所述脱硫吸收塔12上部与湿式静电除尘器13的入口连通,所述湿式静电除尘器13的出口与烟囱连通,所述锅炉烟气余热干燥褐煤系统的烟气-循环水换热器1数量为两个,两个烟气-循环水换热器1相互串联且分别位于干式静电除尘器10的上游和下游。 Boiler flue gas system, including economizer 8, air preheater 9, dry electrostatic precipitator 10, flue gas induced draft fan 11, desulfurization absorption tower 12, wet electrostatic precipitator 13 and the boiler flue gas waste heat drying lignite system , the economizer 8, the air preheater 9 and the dry electrostatic precipitator 10 are sequentially arranged in the tail flue of the boiler from upstream to downstream, and the outlet of the dry electrostatic precipitator 10 passes through the flue gas induced draft fan 11 and the desulfurization The lower part of the absorption tower 12 communicates, the upper part of the desulfurization absorption tower 12 communicates with the inlet of the wet electrostatic precipitator 13, the outlet of the wet electrostatic precipitator 13 communicates with the chimney, and the flue gas-circulation of the boiler flue gas waste heat drying lignite system There are two water heat exchangers 1, and the two flue gas-circulating water heat exchangers 1 are connected in series and located upstream and downstream of the dry electrostatic precipitator 10 respectively.

所述烟气-循环水换热器1和空气-循环水换热器2均为管式换热器,所述烟气-循环水换热器1的循环水管道和空气-循环水换热器2的循环水管道均为管式换热器的管程通道。 Both the flue gas-circulating water heat exchanger 1 and the air-circulating water heat exchanger 2 are tubular heat exchangers, and the circulating water pipeline of the flue gas-circulating water heat exchanger 1 exchanges heat with the air-circulating water The circulating water pipes of the device 2 are the tube-side passages of the tubular heat exchanger.

所述给煤机5和出料机6均为皮带输送机。 Both the coal feeder 5 and the discharger 6 are belt conveyors.

烟气系统运行时,通过烟气-循环水换热器1使锅炉烟气与循环水换热,将锅炉烟气从140℃降低到脱硫入口要求的80℃左右,锅炉热量损失减少60℃,锅炉折算效率可以提高约5%左右;烟气-循环水换热器1的循环水管道和空气-循环水换热器2的循环水管道形成一个闭式回路,利用闭式循环水,将锅炉烟气中回收的热量用于加热干燥高水分褐煤用的热风;将热风引入密闭的褐煤干燥塔4下部,然后热风由下至上通过褐煤干燥塔4干燥褐煤,再通过干燥气引风机3将含有部分煤尘和煤挥发粉的空气引出,最后送到锅炉热二次风管道内,进入锅炉炉膛7,参与锅炉燃烧;原煤通过顶部给煤机5给入褐煤干燥塔4,经过热风干燥后,落入底部的出料机6,送入锅炉原煤斗。同时,锅炉烟气通过省煤器8和空气预热器9降低烟气温度后,即降低了灰尘的比电阻,又减小了烟气的体积,变相增加了干式静电除尘器10的比集尘面积,再通过脱硫吸收塔12高效率脱硫,使SO2达到10mg/Nm3以下,最后经过湿式静电除尘器13将粉尘排放浓度控制在5mg/Nm3以下,通过烟囱排放。 When the flue gas system is running, the flue gas-circulating water heat exchanger 1 is used to exchange heat between the boiler flue gas and the circulating water, reducing the boiler flue gas from 140°C to about 80°C required by the desulfurization inlet, and reducing the heat loss of the boiler by 60°C. The conversion efficiency of the boiler can be increased by about 5%; the circulating water pipe of the flue gas-circulating water heat exchanger 1 and the circulating water pipe of the air-circulating water heat exchanger 2 form a closed loop, and the closed circulating water is used to turn the boiler The heat recovered in the flue gas is used to heat the hot air used for drying high-moisture lignite; the hot air is introduced into the lower part of the airtight lignite drying tower 4, and then the hot air passes through the lignite drying tower 4 from bottom to top to dry the lignite, and then passes through the drying air induced draft fan 3 to contain Part of the air of coal dust and coal volatile powder is drawn out, and finally sent to the boiler hot secondary air duct, enters the boiler furnace 7, and participates in boiler combustion; the raw coal is fed into the lignite drying tower 4 through the top coal feeder 5, and after being dried by hot air, The discharge machine 6 that falls into the bottom is sent into the raw coal hopper of the boiler. At the same time, after the boiler flue gas passes through the economizer 8 and the air preheater 9 to reduce the temperature of the flue gas, it not only reduces the specific resistance of the dust, but also reduces the volume of the flue gas, and increases the ratio of the dry electrostatic precipitator 10 in disguise. The dust collection area is desulfurized through the desulfurization absorption tower 12 with high efficiency, so that the SO 2 is below 10mg/Nm 3 , and finally the dust emission concentration is controlled below 5 mg/Nm 3 through the wet electrostatic precipitator 13, and discharged through the chimney.

最后说明的是,以上优选实施例仅用以说明本实用新型的技术方案而非限制,尽管通过上述优选实施例已经对本实用新型进行了详细的描述,但本领域技术人员应当理解,可以在形式上和细节上对其做出各种各样的改变,而不偏离本实用新型权利要求书所限定的范围。 Finally, it is noted that the above preferred embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that it can be described in the form Various changes can be made to it in the aspects and details without departing from the scope defined by the claims of the present invention.

Claims (5)

1.一种锅炉烟气余热干燥褐煤系统,其特征在于:包括烟气-循环水换热器(1)、空气-循环水换热器(2)、干燥气引风机(3)、褐煤干燥塔(4)、给煤机(5)和出料机(6),所述烟气-循环水换热器(1)布置在锅炉尾部烟道内,所述空气-循环水换热器(2)的循环水管道与烟气-循环水换热器(1)的循环水管道连通,所述褐煤干燥塔(4)下部的入风管道与空气-循环水换热器(2)连通,所述褐煤干燥塔(4)上部的出风管道通过干燥气引风机(3)与锅炉炉膛(7)连通,所述给煤机(5)与褐煤干燥塔(4)顶部的入煤口连通,所述出料机(6)与褐煤干燥塔(4)底部的出煤口连通。 1. A boiler flue gas waste heat drying lignite system, characterized in that it includes a flue gas-circulating water heat exchanger (1), an air-circulating water heat exchanger (2), a drying gas induced draft fan (3), and lignite drying Tower (4), coal feeder (5) and discharger (6), the flue gas-circulating water heat exchanger (1) is arranged in the tail flue of the boiler, and the air-circulating water heat exchanger (2 ) is connected with the circulating water pipe of the flue gas-circulating water heat exchanger (1), and the air inlet pipe at the lower part of the lignite drying tower (4) is connected with the air-circulating water heat exchanger (2). The air outlet pipe at the upper part of the lignite drying tower (4) communicates with the boiler furnace (7) through the dry gas induced draft fan (3), and the coal feeder (5) communicates with the coal inlet at the top of the lignite drying tower (4), The discharger (6) communicates with the coal outlet at the bottom of the lignite drying tower (4). 2.根据权利要求1所述的锅炉烟气余热干燥褐煤系统,其特征在于:所述烟气-循环水换热器(1)和空气-循环水换热器(2)均为管式换热器,所述烟气-循环水换热器(1)的循环水管道和空气-循环水换热器(2)的循环水管道均为管式换热器的管程通道。 2. The boiler flue gas waste heat drying lignite system according to claim 1, characterized in that: the flue gas-circulating water heat exchanger (1) and the air-circulating water heat exchanger (2) are both tubular heat exchangers The heat exchanger, the circulating water pipeline of the flue gas-circulating water heat exchanger (1) and the circulating water pipeline of the air-circulating water heat exchanger (2) are all tube-side passages of the tubular heat exchanger. 3.根据权利要求1所述的锅炉烟气余热干燥褐煤系统,其特征在于:所述给煤机(5)和出料机(6)均为皮带输送机。 3. The boiler flue gas waste heat drying lignite system according to claim 1, characterized in that: the coal feeder (5) and the discharger (6) are both belt conveyors. 4.包含权利要求1至3任意一项所述的锅炉烟气余热干燥褐煤系统的锅炉烟气系统,其特征在于:包括省煤器(8)、空气预热器(9)、干式静电除尘器(10)、烟气引风机(11)、脱硫吸收塔(12)、湿式静电除尘器(13)以及所述锅炉烟气余热干燥褐煤系统,所述省煤器(8)、空气预热器(9)和干式静电除尘器(10)从上游至下游依次布置在锅炉尾部烟道内,所述干式静电除尘器(10)的出口通过烟气引风机(11)与脱硫吸收塔(12)下部连通,所述脱硫吸收塔(12)上部与湿式静电除尘器(13)的入口连通,所述湿式静电除尘器(13)的出口与烟囱连通。 4. The boiler flue gas system comprising the boiler flue gas waste heat drying lignite system according to any one of claims 1 to 3, characterized in that it includes an economizer (8), an air preheater (9), a dry electrostatic Dust collector (10), flue gas induced draft fan (11), desulfurization absorption tower (12), wet electrostatic precipitator (13) and the boiler flue gas waste heat drying lignite system, the economizer (8), air pre Heater (9) and dry electrostatic precipitator (10) are sequentially arranged in the tail flue of the boiler from upstream to downstream. (12) The lower part communicates, the upper part of the desulfurization absorption tower (12) communicates with the inlet of the wet electrostatic precipitator (13), and the outlet of the wet electrostatic precipitator (13) communicates with the chimney. 5.根据权利要求4所述的锅炉烟气系统,其特征在于:所述锅炉烟气余热干燥褐煤系统的烟气-循环水换热器(1)数量为两个,两个烟气-循环水换热器(1)相互串联且分别位于干式静电除尘器(10)的上游和下游。 5. The boiler flue gas system according to claim 4, characterized in that: the number of flue gas-circulating water heat exchangers (1) in the boiler flue gas waste heat drying lignite system is two, and two flue gas-circulating The water heat exchangers (1) are connected in series and are respectively located upstream and downstream of the dry electrostatic precipitator (10).
CN201420781818.7U 2014-12-12 2014-12-12 Residual heat from boiler fume drying brown coal system and boiler smoke system Expired - Lifetime CN204438718U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105042575A (en) * 2015-07-27 2015-11-11 四川川锅锅炉有限责任公司 Fuel and gas-fired boiler oxygen-enriched combustion smoke nearly-zero-emission power generation system
CN105066113A (en) * 2015-07-27 2015-11-18 四川川锅锅炉有限责任公司 Coal-powder boiler oxygen-enriched combustion smoke near-zero emission and power generation system
CN105115286A (en) * 2015-08-21 2015-12-02 广西立盛茧丝绸有限公司 Drying device utilizing waste heat of boiler flue gas
CN109929575A (en) * 2017-12-15 2019-06-25 神华集团有限责任公司 The method and system of power plants generating electricity coupling production clean coal
CN109929573A (en) * 2017-12-15 2019-06-25 神华集团有限责任公司 The method and system of power plants generating electricity coupling production clean coal
CN109929574A (en) * 2017-12-15 2019-06-25 神华集团有限责任公司 The system and method for power plant's coupling production clean coal

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105042575A (en) * 2015-07-27 2015-11-11 四川川锅锅炉有限责任公司 Fuel and gas-fired boiler oxygen-enriched combustion smoke nearly-zero-emission power generation system
CN105066113A (en) * 2015-07-27 2015-11-18 四川川锅锅炉有限责任公司 Coal-powder boiler oxygen-enriched combustion smoke near-zero emission and power generation system
CN105115286A (en) * 2015-08-21 2015-12-02 广西立盛茧丝绸有限公司 Drying device utilizing waste heat of boiler flue gas
CN109929575A (en) * 2017-12-15 2019-06-25 神华集团有限责任公司 The method and system of power plants generating electricity coupling production clean coal
CN109929573A (en) * 2017-12-15 2019-06-25 神华集团有限责任公司 The method and system of power plants generating electricity coupling production clean coal
CN109929574A (en) * 2017-12-15 2019-06-25 神华集团有限责任公司 The system and method for power plant's coupling production clean coal

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