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Modularized combined type fixed bed gasification furnace

A fixed-bed gasifier, modular technology, applied in the field of biomass gasification, can solve the problems that the adjustment capacity is difficult to meet the actual production requirements, the operation of the fixed-bed gasifier is discontinuous, and the load of the fixed-bed gasifier follows. To achieve the effect of ensuring stability and continuity, reducing adverse effects, and protecting safety

Pending Publication Date: 2022-04-12
陕西分布式能源研发中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing fixed-bed gasifier has the following disadvantages in use: the operation of the fixed-bed gasifier is discontinuous and unstable, the composition of the gas produced fluctuates greatly, and the gas production fluctuates greatly; When the gas output is required to be large, a fixed bed with a large cross-sectional area is used, and the uniformity of biomass distribution in the furnace is poor; the load follow-up and adjustment capabilities of the fixed-bed gasifier are difficult to meet the actual production requirements; under accident conditions, the current Insufficient safety devices and measures of the gasifier, so we propose a modular combined fixed-bed gasifier

Method used

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  • Modularized combined type fixed bed gasification furnace
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  • Modularized combined type fixed bed gasification furnace

Examples

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Embodiment 1

[0024] see Figure 1 to Figure 4 , the present invention provides a technical solution: a modular combined fixed-bed gasifier, comprising a modular gasifier body 4 and a biomass bin 1, the biomass bin 1 is located on the top of the modular gasifier body 4, In addition, a pneumatic cloth hinge 3 is provided between the modular gasification furnace body 4 and the biomass bin 1, and the top of the biomass bin 1 is provided with a bin pneumatic flapper valve 2, and the designed bin pneumatic flapper valve 2 and pneumatic The cloth hinge 3, the silo pneumatic flapper valve 2 and the pneumatic cloth hinge 3 are staggered to prevent excessive air from leaking into the modular gasifier body 4, and the inner bottom of the modular gasifier body 4 is provided with a screen hole The bottom of the sieve plate 6 and the sieve plate 6 is provided with an air distribution chamber 7, through the designed sieve plate 6 and the air distribution chamber 7, the sieve plate 6 is located above the a...

Embodiment 2

[0026] see Figure 1 to Figure 6, the present invention provides a technical solution: a modular combined fixed-bed gasifier, comprising a modular gasifier body 4 and a biomass bin 1, the biomass bin 1 is located on the top of the modular gasifier body 4, In addition, a pneumatic cloth hinge 3 is provided between the modular gasification furnace body 4 and the biomass bin 1, and the top of the biomass bin 1 is provided with a bin pneumatic flapper valve 2, and the designed bin pneumatic flapper valve 2 and pneumatic The cloth hinge 3, the silo pneumatic flapper valve 2 and the pneumatic cloth hinge 3 are staggered to prevent excessive air from leaking into the modular gasifier body 4, and the inner bottom of the modular gasifier body 4 is provided with a screen hole The bottom of the sieve plate 6 and the sieve plate 6 is provided with an air distribution chamber 7, through the designed sieve plate 6 and the air distribution chamber 7, the sieve plate 6 is located above the ai...

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Abstract

The invention discloses a modular combined fixed bed gasifier which comprises a modular gasifier body and a biomass bin, the biomass bin is located at the top of the modular gasifier body, and a pneumatic material distribution hinge is arranged between the modular gasifier body and the biomass bin; according to the invention, the modularized and combined fixed bed gasification furnace is adopted, and a single modular gasification furnace is smaller, so that uniform distribution of biological materials and refined control are easier to realize, and therefore, on the basis of meeting the requirement of large-scale biomass gasification, adverse effects of engineering are reduced; a plurality of unit modules are used for feeding and deslagging in a staggered manner and are matched with one another, so that the fluctuation of gas production components and gas production rate is eliminated, and the stability and continuity of gas production of the whole gasification device are ensured; air is replaced by nitrogen, hot standby of a single module unit gasification furnace is achieved, each module unit can be conveniently cut out of and connected into the whole system, and load adjustment of the whole device is faster and more accurate.

Description

technical field [0001] The invention belongs to the technical field of biomass gasification, and in particular relates to a modular combined fixed-bed gasification furnace. Background technique [0002] Biomass gasifier furnace types include fixed bed, fluidized bed, and entrained bed. Among them, the fixed bed has a simple structure, low investment cost, and is widely used. At the same time, the fixed bed is suitable for biomass with a moisture content of about 40%. The ash content of the biomass gas is low, and the thermal efficiency of the gasifier is high, making the horizontal updraft fixed bed a very important type of biomass gasifier. [0003] The existing fixed-bed gasifier has the following disadvantages in use: the operation of the fixed-bed gasifier is discontinuous and unstable, the composition of the gas produced fluctuates greatly, and the gas production fluctuates greatly; When the gas output is required to be large, a fixed bed with a large cross-sectional a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/20C10J3/30C10J3/34
Inventor 廉珂董鑫李亚唐敏
Owner 陕西分布式能源研发中心有限公司