CN201052999Y

CN201052999Y - Smoke-abatement dust-removing cyclone type direct-combustion lime burner

Info

Publication number: CN201052999Y
Application number: CNU2007201515034U
Authority: CN
Inventors: 余经炎; 曹江宏
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-11
Filing date: 2007-06-11
Publication date: 2008-04-30
Anticipated expiration: 2017-06-11

Abstract

A smoke-prevention dust-control cyclone type direct-fired lime kiln relates to a lime burning special kiln, wherein, the inside of a kiln body is fixed with a combustion chamber 3; a material baking chamber 2 is formed outside the combustion chamber 3; the top of the kiln body is fixed with a kiln body seal head 8; the seal head 8 is provided with a charging port 1; the upper part of the kiln body is connected with an induced draught fan 10 and a soot remover 11 through a chimney 9, while the lower part is fixed with a discharging funnel 6; the discharging funnel 6 is communicated with the material baking chamber 2, and the bottom of the discharging funnel 6 is fixed with a discharging opening 7; the inside of the combustion chamber 3 is fixed with a jet burner 4, while the bottom is connected with an ash discharge funnel 5. Limestone is separated from the combustion chamber, and fuel combustion is completed inside the combustion chamber; meanwhile, the heat generated by combustion heats the limestone raw material inside the material baking chamber from bottom to top; moreover, the induced draught fan assists the discharge of soot and feeds soot into the soot remover in which soot is treated and then is discharged, thereby effectively preventing the discharge of soot. In addition, the combustion chamber and the material baking chamber have high heat exchange efficiency and save fuel, thereby according with the requirements of environmental protection; moreover, the utility model has a simple and practical structure.

Description

Smoke prevention and dust control cyclone type direct combustion limestone kiln

One, technical field

The utility model relates to a kind of lime calcining special-purpose kiln, especially smoke prevention and dust control cyclone type direct combustion limestone kiln.

Two, background technology

Wingdale is fired into unslaked lime and promptly generally is commonly called as calcined lime.At present, the cohesiveness of lime is very strong, builds a wall, whitewashes all to be unable to do without lime, and the existing adhesive effect of lime has beautification function again, lime architectural be indispensable starting material.Calcined lime is to be raw material with the Wingdale, and Wingdale contains lime carbonate, and the calcium-oxide of making a living after the burning is soaked and is white lime calcium hydroxide.Calcined lime is at first built a bedstone ash furnace, and the limestone kiln is piled up with stone and formed.Kiln divides kiln filling and leaks kiln, and kiln filling is less, binds with rubble after filling big or small building stones, at kiln fire in a stove before fuel is added hall mouth, ceaselessly uses the mountain bavin then, or coal burns after six, seven days, and a kiln lime burns till, and gets final product kiln discharge after the cooling.It is taller and bigger to leak kiln, the dress Wingdale is also many, at first with Wingdale knock 40-50 centimetre size, spread at the bottom of kiln, one deck Wingdale one deck coal pushes up until kiln, burns from bottom fire hall stomion fire then, after several days at the bottom of the kiln discharge port just can go out lime, this kiln can ceaselessly add building stones and coal from the top, the bottom discharge mouth also can ceaselessly go out lime, does not need flame-out burning continuously.Firer's labour intensity is big, is the ten minutes warm work, adds building stones, stoking and all must lift to the kiln top, basecoat is about 15 centimeters an of straw layer, being about 15 centimeters of coal seam (lump coal) on the straw layer, is to contain about 20 centimeters of carbonic acid calcium limestone on the lump coal coal seam, is the coal seam on the Wingdale, it on the lump coal Wingdale, the kiln body is filled like this, in addition, about 20 centimeters of the rope diameter of finishing with straw, divide several to be discharged to top layer, because its burning back just can become the pore of full communication between the higher and lower levels from the lowest layer.From following igniting, lime had just burnt till after burning was finished.Even like this, still because fuel and the overlapping multilayer of Wingdale, there is serious anoxia phenomenon in fuel in the incendiary time, fuel can not fully burn, the great majority suitable for reading in conventional limestone kiln are the spontaneous firing of open type, because the fuel anoxic in the kiln, fuel can not fully burn and discharge dense smoke, has wasted fuel and has caused the pollution of environment.

Two, summary of the invention

The purpose of this utility model is, proposes a kind of fuel and burns separately, improves combustion position, and effectively reduces discharging the lime burner furnace of flue dust, i.e. smoke prevention and dust control cyclone type direct combustion limestone kiln.

The technical solution of the utility model is: kiln body internal fixing combustion chamber, form roasting material chamber outside the kiln body inner combustion chamber, kiln body top stationary kiln body end socket, on the kiln body end socket charging opening is set, kiln body top connects induced draft fan and smoke dust collector by chimney, and kiln body bottom fixedly goes out funnel, going out funnel is communicated with roasting material chamber, the discharging funnel bottom is discharge port fixedly, combustion chamber internal fixing spraying burner, and the bottom, combustion chamber connects the ash discharge funnel.

The utility model in use adopts the cyclone firing mode of dusting that fuel is burnt fully, has given the oxygen that full combustion of fuel is complementary, and fuel is in indoor sufficient burning, the nothing smoke evacuation phenomenon of having obtained of high-temp combustion.Wingdale is isolated with burning, finishes fuel combustion by the combustion chamber, and the incendiary heat heats the Wingdale raw material of roasting material chamber from bottom to top, by the auxiliary discharging of induced draft fan flue dust, flue dust is sent into fly-ash separator, discharge after handling through fly-ash separator, effectively stoped the discharging of flue dust.Dust collection in fly-ash separator, not only can be fast and more efficient carry out thermal power transfer, the pollutents such as dust of Pai Chuing also obviously reduce simultaneously, combustion chamber and roasting material chamber heat exchange high efficiency, fuel saving, compliance with environmental protection requirements, features simple structure practicality.

Three, description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1

Reference numeral comprises: charging opening 1, roasting are expected chamber 2, combustion chamber 3, burner 4, ash discharge funnel 5, are gone out funnel 6, discharge port 7, kiln body end socket 8, chimney 9, induced draft fan 10, smoke dust collector 11, dust fly-ash separator 12.

Four, embodiment

Embodiment 1: the kiln body is vertical kiln.Kiln body internal fixing combustion chamber 3, the outer roasting material chambers 2 that form 3, kiln body inner combustion chamber, kiln body top stationary kiln body end socket 8, on the kiln body end socket 8 charging opening 1 is set, kiln body top connects induced draft fan 10 and smoke dust collector 11 by chimney 9, and kiln body bottom fixedly goes out funnel 6, going out funnel 6 is communicated with roasting material chamber 2, go out fixedly discharge port 7 of funnel 6 bottoms, combustion chamber 3 internal fixing spraying burners 4,3 bottoms, combustion chamber connect ash discharge funnel 5.

Kiln body end socket 8 is presented convex form, and the top is communicated with chimney 9.Ash discharge funnel 5 bottoms are connected with dust fly-ash separator 12.Have ventilation hole on 3 tops, combustion chamber and the wall.Spraying burner 4 uses fuel to comprise coal dust, liquid water coal slurry, fuel oil, combustion gas etc.

The limestone mine raw material is after preliminary fragmentation, be added into roasting material chamber 2 by charging opening 1, fuel combustion is finished in 3 of combustion chambers, spraying burner 4 adopts the combustion technology of dusting in combustion chamber 3, guaranteed the abundant burning of fuel, and the heat in the following combustion chamber of the draw of induced draft fan spurs from bottom to top, the incendiary heat heats the limestone mine raw material of roasting material chamber 2 from bottom to top, combustion chamber 3 peripheries are heating shortening districts, and the top of combustion chamber 3 is preheating zones, makes full use of the heat of heating zone.Flue dust through chimney 9 auxiliary dischargings, is sent into smoke dust collector 11 to flue dust by induced draft fan 10.The Wingdale raw material is discharged through discharge port 7 by going out funnel 6 in the good back of 2 heating roastings, roasting material chamber.Because dust, flue dust all are enclosed in respectively in smoke dust collector 11 and the dust fly-ash separator 12, realized no flue dust discharging, meet energy conservation and environment protection.

Claims

1. smoke prevention and dust control cyclone type direct combustion limestone kiln, it is characterized in that, kiln body internal fixing combustion chamber (3), the outer roasting material chamber (2) that forms, kiln body inner combustion chamber (3), kiln body top stationary kiln body end socket (8), charging opening (1) is set on the kiln body end socket (8), kiln body top connects induced draft fan (10) and smoke dust collector (11) by chimney (9), kiln body bottom fixedly goes out funnel (6), going out funnel (6) is communicated with roasting material chamber (2), go out fixedly discharge port (7) of funnel (6) bottom, combustion chamber (3) internal fixing spraying burner (4), combustion chamber (3) bottom connects ash discharge funnel (5).

2. smoke prevention and dust control cyclone type direct combustion as claimed in claim 1 limestone kiln is characterized in that the kiln body is vertical kiln.

3. smoke prevention and dust control cyclone type direct combustion as claimed in claim 1 limestone kiln is characterized in that kiln body end socket (8) is presented convex form, and the top is communicated with chimney (9).

4. smoke prevention and dust control cyclone type direct combustion as claimed in claim 1 limestone kiln is characterized in that ash discharge funnel (5) bottom is connected with dust fly-ash separator (12).

5. smoke prevention and dust control cyclone type direct combustion as claimed in claim 1 limestone kiln is characterized in that, has ventilation hole on (3) top, combustion chamber and the wall.