Boiler dropping tube

A blanking tube and boiler technology, which is applied in the field of boiler blanking tubes, can solve problems such as flue gas reverse channeling, safety hazards of feeding devices, and unstable combustion, so as to avoid potential safety hazards, reduce flue gas reverse channeling, and improve The effect of delivery efficiency

Inactive Publication Date: 2019-04-19
国祯美洁 (安徽)生物质热电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The combustion method of the circulating fluidized bed boiler is suspension combustion. When the fuel enters the furnace, it absorbs heat first, and then burns after reaching the ignition point after the volatile matter is precipitated. The generation of flue gas reverse channeling, causing a great safety hazard to the feeding device

Method used

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0022] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be understood as limiting the embodiments of the present invention. In addition, the terms of direction and position mentioned in the present invention, such as "upper", "middle", "lower", "front", "rear", "Left", "right", "inner", "outer", "side", etc., are only referring to the directions and positions of the attached drawings. Therefore, the terms of directions and positions used are for explaining and unders...

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PUM

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Abstract

The invention discloses a boiler dropping tube. The boiler dropping tube comprises a dropping tube, a first air channel, a second air channel, a separation assembly and a hollow heat conducting tube,wherein the dropping tube is obliquely arranged on the sidewall of a boiler, the upper end and lower end of the dropping tube are separately provided with a feeding port and a discharging port and thedischarging port is connected with the inside of the boiler; the first air channel is located at the lower sidewall of the dropping tube and close to the position of the feeding port; the first air channel provides a first airflow blowing into the dropping tube; the second air channel is located at the middle and lower portion of the lower sidewall of the dropping tube and provides a second airflow blowing into the dropping tube; the separation assembly is provided with a plurality of separating rods, wherein the separating rods are located on the flow path of the first airflow, and one end of each separating rod is fixed on the upper sidewall of the dropping tube; the hollow heat conducting tube is provided with a water inlet and a water outlet and spirally wound on the lower end of theouter wall of the dropping tube. According to the boiler dropping tube, the fuel combustion is more stable and sufficient, the turbulent smoke generated by the explosion is reduced, the fuel accumulation in the dropping tube is avoided, and the fuel delivery efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of biomass combustion boilers, in particular to a boiler blanking pipe. Background technique [0002] Commonly used biomass fuels mainly include various agricultural wastes (such as rice husks, cotton stalks, rice stalks, wheat stalks, and corn stalks, etc.), forestry wastes (such as branches, wood, bark, sawdust, etc.) and animal husbandry waste. (such as chicken powder, duck manure, etc.), the characteristics of biomass fuel: large moisture content, generally > 30%, greater than coal moisture; high volatile content > 70%. The combustion method of the circulating fluidized bed boiler is suspension combustion. When the fuel enters the furnace, it absorbs heat first, and then burns after reaching the ignition point after the volatile matter is precipitated. The generation of flue gas reverse channeling will cause a great safety hazard to the feeding device. Contents of the invention [0003] In view...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23K3/02F23C10/22
CPCF23K3/02F23C10/22F23C2206/10F23K2203/201
Inventor 开金龙
Owner 国祯美洁 (安徽)生物质热电有限公司
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