CN2127462Y

CN2127462Y - Boiler having dust removed inside

Info

Publication number: CN2127462Y
Application number: CN 92207704
Authority: CN
Inventors: 罗永治
Original assignee: DALIAN LIGHT MACHINERY GENERAL PLANT
Current assignee: DALIAN LIGHT MACHINERY GENERAL PLANT
Priority date: 1992-04-18
Filing date: 1992-04-18
Publication date: 1993-02-24
Anticipated expiration: 2002-04-18

Abstract

The utility model relates to a boiler having dust removed inside. The fume and dust removing device of the existing longitudinal or horizontal coal burning boiler with mechanical ventilation are all installed far away from a boiler room; steel is wasted, occupation area is increased, and the service life of the boiler is influenced. The utility model is characterized in that a cyclone dust remover made from high temperature-resistant materials is arranged in a boiler wall between a boiler hearth outlet in the boiler and a convection heating surface water pipe. The cyclone dust remover separates a large numbers of dust particles from fume, makes the convection heating surface water pipe be avoided from erosion, and prolongs the service life of the boiler. The utility model has the advantages of small volume, saved steel material, reduced ground occupation area, low cost, and good heat transferring effect.

Description

Boiler having dust removed inside

The utility model relates to a kind of dedusting in stove boiler, is specially adapted to adopt various vertical, the horizontal coal-fired boiler of force ventilation.

Current widely used force ventilation various vertical, horizontal coal-fired boiler, by the coal supply mechanism of building in furnace wall, boiler-steam dome, the convection heating surface water pipe, burner hearth, flue and smoke abatement, the dirt device is formed, as everyone knows, because coal can produce a large amount of grits when burning, these grits are subjected to the convection heating surface water pipe of carrying the continuous erosion boiler of meeting secretly of flow at high speed flue gas, boiler is shortened service life greatly, as reduce flue gas flow rate, just influence the heat-transfer effect of its convection heating surface water pipe, attempt uses the area that increases the convection heating surface water pipe to remedy, will cause the great deal of steel waste to increase the boiler weight and volume, moreover, as with smoke abatement, deduster in the dirt device is by being loaded in the boiler room, and one comes noise big, two influence environmental sanitation, so, usually just connecting deduster with the longer pipe road, that flue gas is discharged from chimney is outdoor, and have only this is installed by the place that is loaded on the Keep away from boiler room, and it is undesirable to cause floor space to reach dust removing effects greatly.

The utility model is at the deficiency in the above-mentioned technology, be intended to improve boiler structure, between boiler furnace outlet place and convection heating surface water pipe or after Crust blocks pipe bundle and between the convection heating surface water pipe, the cyclone dust collectors of packing into and making with high-temperature material, so, a large amount of grits of carrying secretly in the flue gas, before entering the convection heating surface water pipe, just can remove and become the flue gas that does not contain grit by the cyclone dust collectors that exotic material is made, and reach the prolonged boiler purpose in service life, and a kind of dedusting in stove boiler is provided.

Feature of the present utility model is at the interior wall 15 that has outlet 14 of burner hearth 2 and has between the boiler wall 8 of outlet 16, in wall 10, wall 11 and the space between wall 10 and wall 11 that is built into refractory brick by establishing the cyclone dust collectors of making by exotic material 6, be provided with a smoke inlet 12 in the top of wall 10, being provided with a flue gas gas outlet 13 in the top of wall 11 forms, the import of cyclone dust collectors 6 communicates with the smoke inlet 12 of wall 10, and its outlet communicates with outlet 13 on the wall 11.

Embodiment of the present utility model is described as follows in conjunction with Fig. 1:

Fig. 1 is a dedusting in stove boiler front view.

When coal by after adding texture of coal 1 and adding combustion chambers burn in the burner hearth, carry the flue gas of a large amount of grits secretly and pass by crust block area under control 5 through inlet 12 cyclone dust collectors 6 to exotic material system by import 14, after by cyclone dust collectors 6 grit in the flue gas being separated, grit is drained into except that slag ladle by the end opening of deduster 6, and clean flue gas to chimney is discharged outdoor along the outlet on the wall 8 16 through connecting line through convection heating surface water pipe 7 districts along the exhanst gas outlet on the wall 11 13.

Because the utility model is provided with resistant to elevated temperatures cyclone dust collectors in stove, have the little saving steel of volume than prior art, reduce floor space and reduce cost and reach preferably heat-transfer effect.

Claims

1, a kind of dedusting in stove boiler, form by coal supply mechanism, boiler-steam dome, burner hearth, convection heating surface water pipe, flue and smoke abatement, the dust arrester built in furnace wall, feature of the present utility model is the interior wall 15 that has outlet 14 of the burner hearth 2 in stove and has between the boiler setting 8 of import 16, by establishing the cyclone dust collectors 6 made by exotic material, being provided with a smoke inlet 12, be provided with a flue gas gas outlet 13 in the top of wall 11 and form in wall 10, wall 11 and the space between wall 10 and wall 11 that is built into refractory brick in the top of wall 10.

2, a kind of dedusting in stove boiler according to claim 1 is characterized in that the import of cyclone dust collectors 6 communicates with the smoke inlet 12 of wall 10, and its outlet communicates with outlet 13 on the wall 11.