CN204460195U - A kind of CFBB adds sand system - Google Patents
A kind of CFBB adds sand system Download PDFInfo
- Publication number
- CN204460195U CN204460195U CN201520037344.XU CN201520037344U CN204460195U CN 204460195 U CN204460195 U CN 204460195U CN 201520037344 U CN201520037344 U CN 201520037344U CN 204460195 U CN204460195 U CN 204460195U
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- boiler
- sand
- pressure
- coal
- weighing belt
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- 239000004576 sand Substances 0.000 title claims abstract description 23
- 239000003245 coal Substances 0.000 claims abstract description 30
- 238000005303 weighing Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 abstract description 14
- 239000000446 fuel Substances 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 15
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Abstract
本实用新型属于热力发电燃料输送技术领域，特别涉及一种循环流化床锅炉加砂系统。该循环流化床锅炉加砂系统，包括原煤仓，原煤仓底部连接设有若干耐压称重式皮带给煤机，耐压称重式皮带给煤机出口与锅炉进料口相连接，其特征是：所述原煤仓侧端设有砂仓，砂仓底部通过给料管道与耐压称重式皮带给煤机相连接。本实用新型的有益效果是：利用了输煤系统的输送设备，省去了斗式提升机，不但简化了床料输送系统，而且节省了投资；砂仓设置在原煤仓旁，设计和施工上都比较方便，且不影响锅炉钢架的整体受力情况，提高了锅炉运行的安全可靠性；结构简单合理、占用空间小，适于广泛推广应用。
The utility model belongs to the technical field of fuel delivery for thermal power generation, in particular to a sand adding system for a circulating fluidized bed boiler. The circulating fluidized bed boiler sand adding system includes a raw coal bunker. The bottom of the raw coal bunker is connected with a number of pressure-resistant weighing belt coal feeders, and the outlet of the pressure-resistant weighing belt coal feeder is connected with the boiler feed port. The feature is: a sand bin is provided at the side end of the raw coal bunker, and the bottom of the sand bin is connected with a pressure-resistant weighing belt coal feeder through a feeding pipe. The beneficial effects of the utility model are: the transportation equipment of the coal transportation system is used, and the bucket elevator is omitted, which not only simplifies the bed material transportation system, but also saves investment; All are relatively convenient, and do not affect the overall stress of the steel frame of the boiler, which improves the safety and reliability of the boiler operation; the structure is simple and reasonable, and the space occupied is small, which is suitable for wide application.
Description
（一） 技术领域 (1) Technical field
本实用新型属于热力发电燃料输送技术领域，特别涉及一种循环流化床锅炉加砂系统。 The utility model belongs to the technical field of thermal power generation fuel delivery, in particular to a circulating fluidized bed boiler sand adding system.
（二） 背景技术 (2) Background technology
目前，热力发电厂中的循环流化床锅炉床料输送系统从原理上划分，可大致分为三种：人工输送、机械输送和气力输送。其中人工输送因为劳动强度大、人工消耗多、添料速度慢等因素，一般不建议采用。气力输送是目前在建循化流化床锅炉相对采用较多的一种方式，但为了运行稳定，此方式需建立一套独立的气力输送系统，投资比较高。机械输送也是目前使用较多的一种床料输送方式，目前国内循化流化床锅炉采用较多的是利用高差靠床料的重力自流进行添加。该系统设置方式相对独立，系统配置为一个启动床料仓、一台斗式提升机及连接管道和阀门。一般在锅炉框架内较高位置设置独立的启动床料仓，利用斗式提升机将床料送至启动床料仓，然后通过管道连接靠床料自身的重力流入锅炉床料进口。但此方式需要在锅炉框架内的较高处找到一个合适的空间来设置启动床料仓，给设计和施工造成一定的困难。 At present, the circulating fluidized bed boiler bed material conveying system in thermal power plants can be roughly divided into three types in principle: manual conveying, mechanical conveying and pneumatic conveying. Among them, manual transportation is generally not recommended due to factors such as high labor intensity, high labor consumption, and slow feeding speed. Pneumatic conveying is a method that is relatively widely used in circulating fluidized bed boilers under construction at present, but in order to operate stably, this method needs to establish an independent pneumatic conveying system, and the investment is relatively high. Mechanical conveying is also a kind of bed material conveying method that is widely used at present. At present, domestic circulating fluidized bed boilers are mostly used to add by using the gravity flow of the bed material by the height difference. The system is set up in a relatively independent way, and the system is configured as a starting bed silo, a bucket elevator, connecting pipes and valves. Generally, an independent start-up bed silo is set at a higher position in the boiler frame, and the bed material is sent to the start-up bed silo by a bucket elevator, and then the bed material flows into the boiler bed material inlet by the gravity of the bed material itself through a pipeline connection. However, this method needs to find a suitable space at a higher place in the boiler frame to set up the starting bed silo, which causes certain difficulties in design and construction.
（三） 发明内容 (3) Contents of the invention
本实用新型为了弥补现有技术的不足，提供了一种结构简单合理、运行安全可靠、投资少、占用空间小的循环流化床锅炉加砂系统。 In order to make up for the deficiencies of the prior art, the utility model provides a circulating fluidized bed boiler sanding system with simple and reasonable structure, safe and reliable operation, low investment and small occupied space.
本实用新型是通过如下技术方案实现的： The utility model is achieved through the following technical solutions:
一种循环流化床锅炉加砂系统，包括原煤仓，原煤仓底部连接设有若干耐压称重式皮带给煤机，耐压称重式皮带给煤机出口与锅炉进料口相连接，其特征是：所述原煤仓侧端设有砂仓，砂仓底部通过给料管道与耐压称重式皮带给煤机相连接。 A circulating fluidized bed boiler sanding system, including a raw coal bunker, the bottom of the raw coal bunker is connected with a number of pressure-resistant weighing belt coal feeders, and the outlet of the pressure-resistant weighing belt coal feeder is connected to the boiler feed port. It is characterized in that: the side end of the raw coal bunker is provided with a sand bin, and the bottom of the sand bin is connected with a pressure-resistant weighing belt coal feeder through a feeding pipeline.
所述给料管道上设有手动插板门。 The feeding pipeline is provided with a manual sliding door.
本实用新型的有益效果是：与传统的机械式床料输送系统相比，利用了输煤系统的输送设备，省去了斗式提升机，不但简化了床料输送系统，而且节省了投资；砂仓设置在原煤仓旁与传统的在锅炉框架内较高位置设置独立的启动床料仓相比，设计和施工上都比较方便，且不影响锅炉钢架的整体受力情况，提高了锅炉运行的安全可靠性；结构简单合理、占用空间小，适于广泛推广应用。 The beneficial effects of the utility model are: compared with the traditional mechanical bed material conveying system, the conveying equipment of the coal conveying system is used, and the bucket elevator is omitted, which not only simplifies the bed material conveying system, but also saves investment; Compared with the traditional setting of an independent start-up bed silo at a higher position in the boiler frame, the sand bin is set next to the raw coal bunker, which is more convenient in design and construction, and does not affect the overall stress of the boiler steel frame, which improves the efficiency of the boiler. Safe and reliable operation; simple and reasonable structure, small footprint, suitable for wide application.
（四） 附图说明 (4) Description of drawings
下面结合附图对本实用新型作进一步的说明。 Below in conjunction with accompanying drawing, the utility model is further described.
附图1为本实用新型的主视结构示意图； Accompanying drawing 1 is the main view structural representation of the utility model;
附图2为本实用新型的侧视结构示意图； Accompanying drawing 2 is the side view structural representation of the utility model;
附图3为本实用新型的俯视结构示意图； Accompanying drawing 3 is the top view structural representation of the utility model;
图中，1原煤仓，2耐压称重式皮带给煤机，3锅炉进料口，4砂仓，5给料管道，6手动插板门。 In the figure, 1 raw coal bunker, 2 pressure-resistant weighing belt coal feeder, 3 boiler feed port, 4 sand bin, 5 feeding pipeline, 6 manual sliding door.
（五） 具体实施方式 (5) Specific implementation methods
附图为本实用新型的一种具体实施例。该实施例包括原煤仓1，原煤仓1底部连接设有若干耐压称重式皮带给煤机2，耐压称重式皮带给煤机2出口与锅炉进料口3相连接，原煤仓1侧端设有砂仓4，砂仓4底部通过给料管道5与耐压称重式皮带给煤机2相连接。给料管道5上设有手动插板门6。 Accompanying drawing is a kind of concrete embodiment of the utility model. This embodiment comprises raw coal bunker 1, and the bottom of raw coal bunker 1 is connected with several pressure-resistant weighing belt coal feeders 2, and the outlet of pressure-resistant weighing belt coal feeder 2 is connected with boiler feed port 3, and raw coal bunker 1 A sand bin 4 is arranged at the side end, and the bottom of the sand bin 4 is connected with a pressure-resistant weighing belt coal feeder 2 through a feeding pipeline 5 . The feeding pipeline 5 is provided with a manual sliding panel door 6 .
采用本实用新型的一种循环流化床锅炉加砂系统，砂仓4设置于已有的燃料输送系统的双侧电液动犁式卸料器下方。 Adopting a circulating fluidized bed boiler sand adding system of the present invention, the sand bin 4 is arranged under the double-side electro-hydraulic plow unloader of the existing fuel delivery system.
采用本实用新型的一种循环流化床锅炉加砂系统，锅炉启动前利用已有的燃料输送系统将储存在燃料棚附近的石英砂等床料通过输煤皮带→破碎楼→输煤皮带→双侧电液动犁式卸料器→砂仓4（启动给料仓）→给料管道5→耐压称重式皮带给煤机2→锅炉进料口3。当锅炉内床料添加到要求厚度时，关闭手动插板门6和耐压称重式皮带给煤机2，继续向砂仓4（启动给料仓）送砂至额定容量时停送。砂仓4（启动给料仓）的额定容积应能满足锅炉运行过程中补料的要求。本实用新型的循环流化床锅炉床料输送系统对已有的燃料输送系统中的破碎装置--齿辊破碎机，要求输送砂子时两滚轮之间留有一定的间隙，以保证石英砂等床料的粒径满足循环流化床锅炉的需要。 Using the circulating fluidized bed boiler sanding system of the utility model, the existing fuel delivery system is used to transfer the bed materials such as quartz sand stored near the fuel shed through the coal conveyor belt → crushing building → coal conveyor belt → Double-sided electro-hydraulic plow unloader→sand bin 4 (start feeding bin)→feeding pipeline 5→pressure-resistant weighing belt coal feeder 2→boiler inlet 3. When the bed material in the boiler is added to the required thickness, close the manual sliding door 6 and the pressure-resistant weighing belt coal feeder 2, and continue to send sand to the sand bin 4 (start feeding bin) until the rated capacity is reached. The rated volume of the sand bin 4 (start-up feeding bin) should be able to meet the requirements for feeding the boiler during operation. The circulating fluidized bed boiler bed material conveying system of the utility model needs a certain gap between the two rollers when conveying the sand, so as to ensure that the crushing device in the existing fuel conveying system—the toothed roller crusher The particle size of the bed material meets the needs of the circulating fluidized bed boiler.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520037344.XU CN204460195U (en) | 2015-01-20 | 2015-01-20 | A kind of CFBB adds sand system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520037344.XU CN204460195U (en) | 2015-01-20 | 2015-01-20 | A kind of CFBB adds sand system |
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| Publication Number | Publication Date |
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| CN204460195U true CN204460195U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520037344.XU Expired - Lifetime CN204460195U (en) | 2015-01-20 | 2015-01-20 | A kind of CFBB adds sand system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697058A (en) * | 2016-03-29 | 2016-06-22 | 中国恩菲工程技术有限公司 | Sand silo |
| CN105823038A (en) * | 2016-05-12 | 2016-08-03 | 内蒙古京泰发电有限责任公司 | Coal conveying system used for circulating fluidized bed boiler and large-ratio coal slurry mixed burning |
| CN107189823A (en) * | 2017-07-31 | 2017-09-22 | 陕西延长石油（集团）有限责任公司 | A kind of online sanding device of high circulation multiplying power fluidized-bed gasification furnace and sand adding method |
| CN110542081A (en) * | 2019-08-20 | 2019-12-06 | 中国能源建设集团江苏省电力设计院有限公司 | Continuous bed material adding system of circulating fluidized bed boiler |
-
2015
- 2015-01-20 CN CN201520037344.XU patent/CN204460195U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697058A (en) * | 2016-03-29 | 2016-06-22 | 中国恩菲工程技术有限公司 | Sand silo |
| CN105823038A (en) * | 2016-05-12 | 2016-08-03 | 内蒙古京泰发电有限责任公司 | Coal conveying system used for circulating fluidized bed boiler and large-ratio coal slurry mixed burning |
| CN107189823A (en) * | 2017-07-31 | 2017-09-22 | 陕西延长石油（集团）有限责任公司 | A kind of online sanding device of high circulation multiplying power fluidized-bed gasification furnace and sand adding method |
| CN110542081A (en) * | 2019-08-20 | 2019-12-06 | 中国能源建设集团江苏省电力设计院有限公司 | Continuous bed material adding system of circulating fluidized bed boiler |
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Address after: 250000 No. 141 Dikou Road, Tianqiao District, Jinan City, Shandong Province Patentee after: GENERAL TECHNOLOGY GROPU ENGINEERING DESIGN Co.,Ltd. Address before: 250000 No. 141 Dikou Road, Tianqiao District, Jinan City, Shandong Province Patentee before: COAL INDUSTRY JINAN DESIGN & RESEARCH Co.,Ltd. |
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Granted publication date: 20150708 |