Novel rotary air-cooled grate system for biomass boiler

A biomass boiler and rotating air technology, applied in the field of machinery, can solve the problems of insufficient fuel combustion, damage to the rotating shaft, uneven primary air supply, and achieve the effects of sufficient combustion, protection of the rotating shaft, and improved heat dissipation.

Inactive Publication Date: 2013-01-09
JIANGSU YUANTONG AGRI MACHINERY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the grate makes the fuel evenly distributed on the grate, but the primary air supply is not uniform, the fuel combustion is s

Method used

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  • Novel rotary air-cooled grate system for biomass boiler

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Embodiment Construction

[0010] Such as figure 1 As shown, a new type of biomass hot water boiler rotary air-cooled grate system of the present invention includes 1 rotating shaft, 2 bearings, 3 bearing seats, 4 grate chassis, 5 chassis brackets, 6 fire grates, and 7 primary air ducts , air duct support 8, windshield 9, belt pulley 10, belt 11, motor 12. The upper end of the rotating shaft 1 is connected with the motor 12 through the pulley 10 and the belt, and is connected with the primary air pipe 7, and the lower end of the rotating shaft is fixed with a connected fire grate and can rotate together. There is a windshield 9 at the center, and the middle part of the rotating shaft 1 is provided with a chassis bracket 5 and a grate chassis 4 through the bearing seat 3 and the bearing 2. The rotating shaft 1 rotates to drive the grate to rotate together, and the wind enters once through the windshield 9 The air duct 7 is evenly blown out to the fire grate to burn the fuel on it.

[0011] When the gra...

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Abstract

The invention discloses a novel rotary air-cooled grate system for a biomass boiler, which comprises a rotating shaft (1), a grate chassis (4), a chassis bracket (5), a grate (6), a primary air duct (7), an air duct bracket (8), a wind deflector (9), a belt pulley (10), a belt (11) and a motor (12). The novel rotary air-cooled grate system for the biomass boiler is characterized in that the rotating shaft (1) rotates to drive the grate (6) to rotate; and air enters the primary air duct (7) through the wind deflector (9) and is uniformly blown towards the grate (6), so that the fuel on the grate is combusted. The novel rotary air-cooled grate system for the biomass boiler has the advantages that firslty, a variable-speed gear can be manually adjusted, so that the grate is low and uniform in rotating speed, and the fuel is uniformly arranged on the grate and is fully combusted; secondly, the shaft and the bearing are cooled by the air, and the self-temperature is effectively reduced, so that the primary air temperature is raised, and the fuel is conveniently combusted; and thirdly, the air supply temperature is changed through the wind deflector, so that the primary air is uniformly blown to the grate; and therefore, the grate is cooled, and the phenomenon that the biomass ash drops on the bearing so as to damage the shaft and accessories is avoided.

Description

technical field [0001] The invention belongs to the field of machinery, and relates to a fire grate system for a biomass hot water boiler, in particular to a circular rotary fire grate system. Background technique [0002] At present, boilers using biomass briquettes as fuel are beginning to enter the industrial market. Small biomass boilers generally use a fixed grate. Due to the low heat of biomass fuel, the fuel consumption per hour is more than twice that of coal, so the grate area is required to be large, which makes it difficult for the fuel to be evenly thrown on the grate. Therefore, it is imperative to design a new grate structure for biomass boilers. [0003] The ventilation rate of the existing biomass fixed grate is low, and the ash and slag are not easy to fall, resulting in serious coking, uneven material layer thickness, and insufficient fuel combustion. Chinese patent application No. 201120496356 patent (rotary grate) specification discloses a biomass boil...

Claims

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Application Information

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IPC IPC(8): F23H9/06F24H9/00
Inventor 郭双革姚勇张德利李瑞杨
Owner JIANGSU YUANTONG AGRI MACHINERY TECH
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