Fluidized selective deslagging device

A selective and fluidized technology, applied in incinerators, combustion methods, combustion types, etc., can solve the problem of incinerators not being able to fluidize and operate normally, and achieve the effect of prolonging life and reducing scouring.

Active Publication Date: 2009-12-30
热华能源股份有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

When this system is used in a circulating fluidized bed waste incinerator, the incinerator cannot be fluidized and operated normally due to the large no

Method used

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  • Fluidized selective deslagging device
  • Fluidized selective deslagging device
  • Fluidized selective deslagging device

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Embodiment approach

[0017] Such as figure 1 As shown, the present invention includes an air distribution plate 1, an air cap 2, a slag discharge channel on the bed and a furnace enclosure structure 4, which are arranged at the bottom of the incinerator furnace. The air distribution plate 1 is arranged at the bottom of the furnace, surrounded by a furnace enclosure structure 4, and the furnace enclosure structure is made of fire-resistant and wear-resistant materials. The slag discharge channel on the bed is composed of the slag discharge port 3 on the bed and the stepped channel 5. The slag discharge port on the bed is an opening formed by the stepped channel on the section of the furnace enclosure structure. The lower end is the stepped platform of the stepped channel 5, and the height H of the slag discharge port is greater than the width of the largest slag block in the bottom slag. During the waste incineration process, bottom slag, which is far more complex and wider than coal-fired, will b...

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Abstract

The invention relates to a fluidized selective deslagging device, belonging to the field of thermal engineering equipment. The device comprises an air distributor, air hoods, a bed deslagging channel and a hearth enclosure structure, and is characterized in that the air distributing plate is inclined towards the bed deslagging channel which is arranged on the lowest point of the air distributing plate; the air hoods are directional air hoods and are arranged staggeredly; and the bed deslagging channel is a step channel. The area of the air inlet section of each directional air hood is larger than the area of the air outlet section, the width of the air inlet section is larger than the height of the air outlet section, and an inclined angle theta on the air outlet section is 5-20 degrees. More than two bed deslagging openings can be arranged in parallel in a horizontal direction. The invention adopts the mode of fluidized bed deslagging; under the action of the inclined air distributing plate and the directional air hoods, the invention can selectively deliver large blocks of non-flammable substances to the deslagging opening, and then smoothly discharges the substances out from the hearth, thereby realizing the stable and normal running of a garbage incinerator; and the flushing to the air hoods, which is carried out by the inlet of air and materials, can be reduced by the alternative distribution and the unequal section arrangement of the directional air hoods, and the service life of the deslagging device can be prolonged.

Description

technical field [0001] The invention relates to a fluidized selective slag discharge device, which belongs to the field of thermal engineering equipment. Background technique [0002] In the process of waste incineration, especially the incineration process of circulating fluidized bed waste incinerator, due to the complex composition of waste, it is difficult to avoid the situation that large pieces of non-combustible materials are burned into the furnace together with the waste, and this large piece of non-combustible materials It will have side effects on the material fluidization of the circulating fluidized bed incinerator. If it is not taken out in time, it will inevitably lead to the failure of fluidization on the bed and affect the normal operation of the incinerator. Therefore, the circulating fluidized bed waste incinerator is under normal feed conditions , but also to ensure normal slag discharge, that is, to achieve the so-called "eat in, discharge out", in order...

Claims

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Application Information

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IPC IPC(8): F23J1/00F23G5/44
Inventor 康建斌于培锋王兆军
Owner 热华能源股份有限公司
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