CN2515542Y

CN2515542Y - Device for decompose burnout residual carbon by heat radiation in furnace

Info

Publication number: CN2515542Y
Application number: CN 01279886
Authority: CN
Inventors: 马成果; 常顺义
Original assignee: HEILONGJIANG SHUANGGUO BOILER CO Ltd
Current assignee: HEILONGJIANG SHUANGGUO BOILER CO Ltd
Priority date: 2001-12-29
Filing date: 2001-12-29
Publication date: 2002-10-09
Anticipated expiration: 2011-12-29

Abstract

Disclosed is an in-furnace residual coal decomposition and burn-off device by thermal radiation, which belongs to the boiler technique field, and solves the technique problem that a smoke separation and recovery chamber formed by a refractory concrete single layered structural body in the current in-furnace smoke purification and burn-off device has no combustion-supporting function by emitting infrared, and defects of difficult construction, heavy weight, unsuitability of hanging and fixing and weak intensity. In order to solve the technique problems, the utility model adopts the technical proposal that the smoke separation and recovery chamber is designed to be composed of a layered structural body having a carborundum layer on the inner surface in the prior art, the carborundum layer radiates infrared at the temperature of over 800 DEG C to heat, decompose and burn off the residual coal particles from the inside and the outside simultaneously.

Description

The burnout residual carbon device is decomposed in heat radiation in the stove

Technical field

The utility model relates to the boiler technology field, particularly relates to the interior clarifying smoke of a kind of boiler and burns device.

Background technology

It is patent No. ZL01209809.4 structure that the interior dust removal and purification of existing up-to-date at present boiler burns device, it mainly separates the recovery chamber by flue dust and playpipe is formed, flue dust separates the recovery chamber and generally adopts refractory concrete simple layer structure to form, its shortcoming is at high temperature not send the combustion-supporting effect of infrared ray, difficulty of construction is big, Heavy Weight, increase the boiler deadweight, and cause being difficult for hanging fixing, a lot of load-bearing girder steels need be set on boiler, intensity is low, not maintenance value after being damaged by sweep of gases for a long time.

The utility model content

The technical problem that the utility model solves is that the flue dust that refractory concrete simple layer structure is formed in the prior art separates the combustion-supporting effect of infrared ray of not sending that the chamber exists of reclaiming, and difficulty of construction is big, Heavy Weight, should not hang the deficiency fixing, that intensity is low.

For solving the problems of the technologies described above, the technical scheme that the utility model is taked is: between rear arch and convective region, is to have the flue gas of interior convex edge to enter the flexible mouth of convective region by one group near the convective region arrival end, the bottom is separated with described flue dust respectively and is reclaimed the playpipe that chamber dust collection funnel outlet is connected and form with one group for reclaimed the chamber for the tubular flue dust separates by the inwall of taper dust collection funnel, the solid welding that communicates with described each playpipe one end of the connecting leg sidewall of one end closure, the corresponding flue dust second-time burning inlet with the rear arch nose of described each playpipe other end cooperates, described flue dust separates and reclaims the chamber antetheca and have respectively on the prior art basis with the corresponding tangential flue dust entrance structure that cooperates of communicating of the anterior one group of burner hearth flue dust outlet of rear arch, described flue dust separate reclaim the chamber be designed in the top layer be the floor structure composition of silicon carbide layer.

The utility model since described flue dust separate reclaim the chamber be designed in the top layer be the floor structure of silicon carbide layer, carborundum is a high-grade heat-resistant, wear-resistant material, and is in light weight, can produce and give off infrared ray at high temperature (more than 800 ℃), penetrate carbon granule, make the decomposition combustion from inside to outside that heats up of a carbon material center, compared with the prior art, its beneficial effect is to help that tiny carbon granule burns in the flue dust, be easy to construction, alleviate the boiler deadweight, fixed form is flexible, and the intensity height is not easy to wear.

Description of drawings

Fig. 1 decomposes the burnout residual carbon device for heat radiation in the stove and forms flue dust and separate the master of floor structure during by lining surface carbonation silicon one deck structure who reclaims the chamber and look cutaway view;

Fig. 2 decomposes the burnout residual carbon device for heat radiation in the stove and forms flue dust to separate the floor structure that reclaims the chamber be that cutaway view is looked on a left side during by lining surface carbonation silicon one deck structure;

The master looked cutaway view when Fig. 3 was refractory concrete floor two-layer structure for heat radiation decomposition burnout residual carbon device composition flue dust in the stove separates the floor structure that reclaims the chamber by lining surface carbonation silicon layer, skin;

Cutaway view was looked on a left side when Fig. 4 was refractory concrete floor two-layer structure for heat radiation decomposition burnout residual carbon device composition flue dust in the stove separates the floor structure that reclaims the chamber by lining surface carbonation silicon layer, skin;

Fig. 5 is that heat radiation is decomposed the floor structure silicon carbide layer of burnout residual carbon device composition flue dust separation recovery chamber by silicon carbide brick cementation structure chart in the stove.

The specific embodiment

Providing the embodiment that preferred embodiment of the present utility model: Fig. 1, Fig. 2 provide below in conjunction with accompanying drawing is: be provided with in the stove heat radiation and decompose the burnout residual carbon device between rear arch 1 and convective region 2, it is to have the flue dust of interior convex edge to enter flexible mouthful of convective region by one group near the convective region arrival end, and the bottom is separated with flue dust respectively and reclaimed chamber 3 dust collection funnels and export the playpipe 4 that is connected and form with one group for the inwall by taper dust collection funnel reclaims chamber 3 for the tubular flue dust separates.The solid welding that communicates with each playpipe 4 one end of connecting leg 5 sidewalls of one end closure, have flue dust second-time burning inlet in advance at rear arch 1 nose, the corresponding flue dust second-time burning inlet with rear arch 1 nose of each playpipe 4 other end cooperates, flue dust separate to reclaim chamber 3 antethecas to be had respectively on the prior art basis with the corresponding tangential flue dust entrance structure that cooperates of communicating of rear arch 1 anterior one group of burner hearth flue dust outlet, top layer 6 was the floor structure of silicon carbide layer in flue dust separation recovery chamber 3 was designed to, and layer structure is carborundum one deck structure by top layer, lining 6 only.The embodiment that Fig. 3, Fig. 4 provide is: the floor structure of forming flue dust separation recovery chamber 3 is that top layer, lining 6 is a refractory concrete floor two-layer structure for silicon carbide layer and outer 7, and silicon carbide layer and refractory concrete layer are made firm by ramming respectively and formed.In top layer 6 silicon carbide layers also can form by acid high-temperature adhesives cementation by arc silicon carbide brick 8 by shown in Figure 5, flue dust separate to reclaim on the flexible mouthful of inwall that chamber 3 flue dust enter the convective region helical form rifling boss 9.Playpipe 4, connecting leg 5 material steel pipes.The connecting leg 5 openends machine of giving a dinner for a visitor from afar during use, the flue gas of burner hearth generation separates the tangential flue dust inlet of recovery chamber 3 antethecas by flue dust and enters flue dust separation recovery chamber 3 high speeds rotation, under centrifugal action, grit is separated greatly falls in the taper flue dust collecting funnel, afterwards under suction function, be collected and ooze the assorted carbon granules that do not burn in the grit and be brought into playpipe 4 and get back to burner hearth again and further burn.Flue dust separate to reclaim carbon granule in the chamber 3 since top layer, lining 6 silicon carbide layers more than 800 ℃ during temperature the infrared ray of radiation make inside and outside vibration heating simultaneously of carbon residue particle, cause carbon granules to decompose and burn.

Claims

1, the burnout residual carbon device is decomposed in heat radiation in the stove, it is between rear arch and convective region, is to have the flue gas of interior convex edge to enter the flexible mouth of convective region by one group near the convective region arrival end, the bottom is separated with described flue dust respectively and is reclaimed the playpipe that chamber dust collection funnel outlet is connected and form with one group for reclaimed the chamber for the tubular flue dust separates by the inwall of taper dust collection funnel, the solid welding that communicates with described each playpipe one end of the connecting leg sidewall of one end closure, the corresponding flue dust second-time burning inlet with the rear arch nose of described each playpipe other end cooperates, described flue dust separates and reclaims the chamber antetheca and have respectively with the corresponding tangential flue dust inlet that communicates and cooperate of the anterior one group of burner hearth flue dust outlet of rear arch, it is characterized in that: described flue dust separates that to reclaim the chamber be that the floor structure of silicon carbide layer formed by the top layer, lining.

2, the burnout residual carbon device is decomposed in heat radiation in the stove as claimed in claim 1, it is characterized in that: the skin on top layer is refractory concrete layer or fire clay layer in the described layer structure.

3, decompose the burnout residual carbon device as heat radiation in claim 1, the 2 described stoves, it is characterized in that: described silicon carbide layer is made up of arc silicon carbide brick cementation.

4, decompose the burnout residual carbon device as heat radiation in claim 1, the 2 described stoves, it is characterized in that: described flue dust separates to reclaim on the flexible mouthful of inwall that the chamber flue gas enters the convective region helical form rifling boss.