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High-ash low-temperature exhaust heat boiler

A low-temperature waste heat, high ash technology, used in steam boilers, preheating, feedwater heaters, etc., can solve the problems of high operating costs and easy ash accumulation, increase safety and reliability, reduce ash accumulation, and enhance transmission. The effect of thermal effects

Inactive Publication Date: 2016-12-07
JIANGSU TAIHU BOILER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above problems, the present invention provides a high-ash low-temperature waste heat boiler, which can solve the problems of easy ash accumulation and high operating costs in absorbing high-ash low-temperature waste heat flue gas in a conventional steel frame structure furnace

Method used

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  • High-ash low-temperature exhaust heat boiler
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  • High-ash low-temperature exhaust heat boiler

Examples

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Embodiment Construction

[0014] See figure 1 , figure 2 and image 3 , a high-ash low-temperature waste heat boiler, which includes a horizontal flue and a steam drum 10. The horizontal flue includes an evaporator box 1, an economizer 2, and a preheater 3 that are sequentially connected through the connecting flue 6. This implementation In the example, there are four groups of evaporator boxes, and the heating surfaces 4 in each evaporator box 1 are longitudinally staggered, and the evaporator box 1 is provided with installation holes 5, and the soot blowers are arranged in the installation holes 5; coal-saving The preheater 2 and the preheater 3 are set in the same box 14; each group of evaporator boxes 1 and the connecting flue 6 are provided with expansion joints 7, which are used to eliminate each evaporator box 1 after being heated. amount of expansion.

[0015] The bottom water inlet pipe 8 of the economizer 2 is connected to the circulation pump pipeline, the top water outlet pipe 9 of the ...

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Abstract

The invention provides a high-ash low-temperature exhaust heat boiler, which can solve the problems that a conventional steel-frame structure furnace profile is adopted to absorb high-ash low-temperature exhaust heat smoke gas, so that ash deposition is occurred easily, and the operating cost is high. The high-ash low-temperature exhaust heat boiler comprises a horizontal flue and a steam pocket. The horizontal flue comprises evaporator box bodies, an economizer and a preheater sequentially connected in order through connecting flues, and is characterized in that heating surfaces in the evaporator box bodies are longitudinally arranged in a staggered way; installation holes are formed in the evaporator box bodies; and ash ejectors are arranged in the installation holes.

Description

technical field [0001] The invention relates to the field of waste heat boilers, in particular to high-ash low-temperature waste heat boilers. Background technique [0002] With the increasing popularity of waste heat boilers, medium and high-temperature waste heat flue gas has been fully utilized, but high-ash low-temperature waste heat flue gas is still less utilized, because high-ash low-temperature flue gas has a lower temperature, a smaller energy level, and is easy to accumulate dust Therefore, the use of conventional steel frame structure furnaces to absorb and utilize this part of energy is relatively expensive to operate. Contents of the invention [0003] In view of the above problems, the present invention provides a high-ash low-temperature waste heat boiler, which can solve the problems of easy ash accumulation and high operating cost of absorbing high-ash low-temperature waste heat flue gas in a conventional steel frame structure furnace. [0004] Its techni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B31/08F22D1/02F23J3/02
CPCF22B31/08F22D1/02F23J3/023
Inventor 陆世红徐传香
Owner JIANGSU TAIHU BOILER