CN2463703Y

CN2463703Y - Dust-removing and purifying device for smoke in furnace

Info

Publication number: CN2463703Y
Application number: CN 01209809
Authority: CN
Inventors: 马成果; 常顺义; 任光云
Original assignee: HEILONGJIANG SHUANGGUO BOILER CO Ltd
Current assignee: HEILONGJIANG SHUANGGUO BOILER CO Ltd
Priority date: 2001-02-14
Filing date: 2001-02-14
Publication date: 2001-12-05
Anticipated expiration: 2011-02-14

Abstract

The utility model relates to a dust-removing and purifying device for smoke in a furnace, which is arranged between a rear arch and a convection zone. The utility model is composed of a set of circular through holes, wherein, the inlet ends of which near the convection zone are smoke gas entering convection zone with inner convex edges, a smoke and dust separating and recovering chamber, wherein, the lower part of which is provided with a conical smoke and dust collecting hopper and the inner wall of which is cylindrical, a set of jet pipes which are separately communicated with the smoke and dust separating and recovering chamber and the smoke and dust collecting hopper. Compared with the prior art, the utility model has the advantages that the abrasion of the convection heating surface pipe is little; the dust separation and the purification in the furnace can be once completed in the furnace; the environmental protection effect is good; combustible substances in the smoke and the dust can be thoroughly recovered and utilized; the energy is saved; the heat efficiency of a boiler can be raised.

Description

A kind of inner flue gas of the stove udst separation burns device

The utility model relates to the boiler technology field, particularly relates to a kind of inner flue gas of the stove udst separation and burns device.

At present, general boiler portion does not have the inner flue gas of the stove udst separation to burn device, flue gas in the burner hearth directly enters the convective region, the dust contained flue gas that enters the convective region like this is many, to the heating surface tube serious wear, such flue gas increases the difficulty of outside udst separation again when arriving the afterbody smoke evacuation, so exceed the environmental requirement standard easily, combustible is not fully recycled in the flue dust simultaneously, wastes energy.

The purpose of this utility model provides a kind of inner flue gas of the stove udst separation and burns device, directly enter the convective region with the flue gas that solves in the existing boiler furnace,, increase the difficulty of outside udst separation the heating surface tube serious wear, be not easy to reach environmental protection standard, the deficiency that wastes energy.

The technical solution of the utility model is: be provided with the inner flue gas of the stove udst separation and burn device between rear arch and convective region, it 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 flue dust collecting hopper outlet is connected and form with one group for reclaimed the chamber for the tubular flue dust separates by the inwall of taper flue dust collecting funnel, the solid welding that communicates with described each playpipe one end of the connecting leg sidewall of one end closure, have flue dust second-time burning inlet in advance at the rear arch nose, the corresponding flue dust second-time burning with the rear arch nose of described each playpipe other end inlet cooperates, and described flue dust separates recovery chamber antetheca has tangential smoke inlet to have the cooperation that communicates of one group of burner hearth exhanst gas outlet correspondence in advance with the rear arch front portion respectively.

The utility model compared with the prior art, because design has flue-gas dust removal and purification to burn device between rear arch and the convective region, flue gas rotates at a high speed when separating the recovery chamber by flue dust in this device, under centrifugal action, the separated collection of grit, get back to burner hearth again by playpipe and further burn, its advantage is little to the heating surface tube wearing and tearing, finishes one-time dedusting and purify in stove, environment protecting is good, combustible can fully be recycled in the flue dust, energy savings, and boiler thermal output is improved.

Description of drawings:

Fig. 1 for a kind of inner flue gas of the stove udst separation burn device flue dust separate to reclaim the chamber when being the vertical structure master look cutaway view.

Fig. 2 separate to reclaim chamber left view when being the vertical structure for a kind of inner flue gas of the stove udst separation burns device at flue dust.

Fig. 3 separate to reclaim chamber vertical view cutaway drawing when being the vertical structure for a kind of inner flue gas of the stove udst separation burns device at flue dust.

Fig. 4 for a kind of inner flue gas of the stove udst separation burn device flue dust when separate to reclaim the chamber be horizontally-arranged formula structure the master look cutaway view.

Fig. 5 burns device at flue dust left view when separate to reclaim the chamber be horizontally-arranged formula structure for a kind of inner flue gas of the stove udst separation.

Fig. 6 burns device at flue dust vertical view cutaway drawing when separate to reclaim the chamber be horizontally-arranged formula structure for a kind of inner flue gas of the stove udst separation.

Provide the utility model most preferred embodiment below in conjunction with accompanying drawing: provided a kind of inner flue gas of the stove udst separation by Fig. 1, Fig. 2, Fig. 3 and burnt device separate to reclaim the chamber at flue dust be vertical structure embodiment, be provided with the inner flue gas of the stove udst separation and burn device between rear arch 1 and convective region 2, it is separated with described flue dust respectively and reclaims the playpipe 4 that chamber 3 flue dust collecting hopper outlets are connected and form with one group for the inwall by taper flue dust collecting funnel reclaims chamber 3 for the cylindrical shape flue dust separates for entered flexible mouthful of the convective region, lower end by the flue gas of interior convex edge by one group of upper end.The solid welding that communicates with described 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 with rear arch 1 nose of described each playpipe 4 other end inlet cooperates, and described flue dust separates recovery chamber 3 antethecas has tangential smoke inlet 6 to have the cooperation that communicates of one group of burner hearth exhanst gas outlet correspondence in advance with rear arch 1 front portion respectively; Having provided a kind of inner flue gas of the stove udst separation by Fig. 4, Fig. 5, Fig. 6 burns device separate to reclaim the chamber at flue dust is horizontally-arranged formula structure embodiment, it is tubular that a flue dust separates recovery chamber 3 inwalls, be that the flue gas of convex edge enters flexible mouthful of convective region 2 in having near convective region 2 arrival ends, one side, flue dust separates and reclaims chamber 3 funnels below flue dust separates recovery chamber 3 bottom barrel mouths.It is refractory concrete that flue dust separates recovery chamber 3 materials, and playpipe 4, connecting leg 5 materials are steel pipe.The connecting leg 5 openends machine of giving a dinner for a visitor from afar during use, the flue gas of burner hearth generation reclaims the tangential smoke inlet 6 of chamber 3 antethecas by the flue dust separation and enters flue dust separation recovery chamber 3 in the 3 high speeds rotation of separation recovery chamber, grit is separated under centrifugal action falls in the taper flue dust collecting funnel, is brought into playpipe 4 afterwards and gets back to burner hearth again and further burn under suction function.

Claims

1, a kind of inner flue gas of the stove udst separation burns device, it is characterized in that: 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 flue dust collecting hopper outlet is connected and form with one group for reclaimed the chamber for the tubular flue dust separates by the inwall of taper flue dust collecting 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 with the rear arch nose of described each playpipe other end inlet cooperates, and described flue dust separates and reclaims the chamber antetheca and tangential smoke inlet is arranged with the cooperation that communicates of the one group of burner hearth exhanst gas outlet correspondence in rear arch front portion respectively.

2, a kind of inner flue gas of the stove udst separation as claimed in claim 1 burns device, it is characterized in that: it is vertical that flue dust separates the recovery chamber.

3, a kind of inner flue gas of the stove udst separation as claimed in claim 1 burns device, it is characterized in that: it is horizontally-arranged formula that flue dust separates the recovery chamber.