CN203432306U

CN203432306U - Kiln capable of sintering antique imitation blue bricks by adopting natural gas

Info

Publication number: CN203432306U
Application number: CN201320473282.8U
Authority: CN
Inventors: 敬治民; 石洪阵
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-05
Filing date: 2013-08-05
Publication date: 2014-02-12
Anticipated expiration: 2023-08-05

Abstract

The utility model relates to a kiln capable of sintering antique imitation blue bricks by adopting natural gas. The kiln can solve the problems that the blue brick sintering kiln is long in sintering time, pollutes the environment and causes the influence on the health. A metal shell is a rectangular frame with an opening at the upper end, an insulating cotton layer is arranged on the inner edge surface of the frame body of the rectangular frame, a refractory brick layer is arranged in the insulating cotton layer, a cambered ceiling is arranged on the upper end of the refractory brick layer, and a soil layer is arranged on the upper end surface of the cambered ceiling, thus forming the kiln; a sintering cavity is formed by the refractory brick layer and the cambered ceiling, an exhaust base is arranged at the lower part of the kiln, an exhaust cavity is arranged in the exhaust base and connected with the sintering cavity through an exhaust hole, the exhaust base is connected with a sealing device by a through hole in the lower end surface by a pipeline, the sealing device is connected with a heat extraction induced-draft fan by a pipeline, an observation port, a thermocouple and a burner tip are arranged on the left side surface and the right side surface, the burner tip is connected with a natural gas delivery pipe and an air delivery pipe, the air delivery pipe is connected with a burning-supported fan, the burning-supported fan is connected with the heat extraction induced-draft fan and a frequency converter, the frequency converter is connected with the thermocouple, and a kiln door is arranged on the kiln. The kiln is novel and unique in structure, and good in sealing property.

Description

A kind of kiln body that adopts natural gas to fire blue bricks modelled after an antique

Technical field

The utility model relates to kiln body, particularly a kind of kiln body that adopts natural gas to fire blue bricks modelled after an antique.

Background technology

Blue bricks, watt as a kind of wall decorative material, the history that has had more than one thousand years in China, favored by people, all adopt earth kiln to fire with timber or coal equal energy source all the time, because earth kiln all burns till with timber and coal, caused the volume of earth kiln can not be too large, thereby made its output not high, and wasted energy; Earth kiln is owing to being used timber and coal in sintering procedure, and programming rate is slow, and the time that causes burning till blue bricks is long, and general firing time is 15～25 days, and it is all generally to make a fire at wicket place that earth kiln is fired, and the quality of its temperature homogeneity and wicket place brick is difficult to control; Earth kiln is fired entirely with firing master worker experience, main atmosphere and the temperature being difficult in assurance kiln, the defect that very difficult assurance brings when cooling, in sum, earth kiln is fired and is difficult on the one hand guarantee product quality, and firing period is grown and wasted energy on the other hand, contaminated air, do not meet the requirement that national green is produced, national most area has been prohibited earth kiln and has been produced blue bricks.

Earth kiln is built into by common brick and earth, there is no Insulation, and kiln temperature is easy to be radiated to outside kiln, and this not only wastes the source of nature, and the high temperature radiating can the workman on earth kiln limit cause health hazard to long-term work.

Along with people's living standard improves, Chinese pseudo-classic Style Design can get more and more, and can get more and more thus, yet earth kiln is fired and substantially by country, prohibited to the demand of blue bricks modelled after an antique, grey tile.

Summary of the invention

For above-mentioned situation, for overcoming the defect of prior art, the object of the utility model is just to provide a kind of kiln body that adopts natural gas to fire blue bricks modelled after an antique, can effectively solve existing blue bricks fire the kiln body firing time long, be difficult to guarantee to fire quality, contaminated environment and to firing workman's the healthy problem impacting.

The technical scheme of its solution is, comprise metal shell, natural gas line and sealing device, metal shell is the rectangle frame of upper end open, on the framework inner edge surface of rectangle frame, heat-preservation cotton layer is housed, on heat-preservation cotton layer inner edge surface, there is fire brick layer, there is arch top fire brick layer upper end, there is grave layer upper surface, arch top, form kiln body, fire brick layer and arch top form fires chamber, kiln body bottom has in exhaust base exhaust base and has discharge chamber, discharge chamber through the steam vent of exhaust base upper surface with fire chamber and be connected, exhaust base has through hole on lower surface, through hole is connected with sealing device through pipeline, sealing device through pipeline with take out hot induced-draft fan and be connected, kiln body left and right sides are equipped with successively from top to bottom and fire chamber and be communicated with lookout mouth, thermocouple and burner, burner is connected with air delivery pipe with gas delivering pipe through pipeline, air delivery pipe is connected with combustion fan through pipeline, combustion fan with take out hot induced-draft fan and be connected with frequency changer, frequency changer is connected with thermocouple, on kiln body front end face, there is wicket.

The utility model novel structure is unique, strong operability, and closure is good, can guarantee the quality of firing of brick body, pollution-free.

Accompanying drawing explanation

Fig. 1 is structural front view of the present invention.

Fig. 2 is the main TV structure profile (enlarged drawing) of kiln body of the present invention.

Fig. 3 is the main pseudosection (enlarged drawing) of the utility model sealing device.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

By Fig. 1, provided, the utility model comprises metal shell, natural gas line and sealing device, the rectangle frame that metal shell 1 is upper end open, on the framework inner edge surface of rectangle frame, heat-preservation cotton layer 2 is housed, on heat-preservation cotton layer 2 inner edge surface, there is fire brick layer 3, there is arch top 4 fire brick layer 3 upper ends, arch is pushed up 4 upper surfaces grave layer 5, form kiln body, fire brick layer 3 and arch top 4 form fires chamber 6, exhaust base 7 is arranged at kiln body bottom, in exhaust base 7, there is discharge chamber 8, discharge chamber 8 through the steam vent 9 of exhaust base 7 upper surfaces with fire chamber 6 and be connected, exhaust base has through hole 10 on 7 lower surfaces, through hole 10 is connected with sealing device 11 through pipeline, sealing device 11 through pipeline with take out hot induced-draft fan 12 and be connected, kiln body left and right sides are equipped with successively from top to bottom and fire chamber 6 and be communicated with lookout mouth 13, thermocouple 14 and burner 15, burner 15 is connected with air delivery pipe 17 with gas delivering pipe 16 through pipeline, air delivery pipe 17 is connected with combustion fan 18 through pipeline, combustion fan 18 with take out hot induced-draft fan 12 and be connected with frequency changer 19, frequency changer 19 is connected with thermocouple 14, on kiln body front end face, there is wicket 20.

In order to guarantee heating effect, Suo is Shuoed lookout mouth 13, thermocouple 14 and burner 15 all 4 groups, guarantees the effect of using.

On said metal shell 1 outer edge surface, skeleton (not shown in FIG.) is housed, improves the intensity of metal shell.

The distance of the inner face of the outer face of said burner 15 and fire brick layer 3 is 10-20 centimetre.

Distance between said burner 15 and the upper surface of exhaust base 7 is 300mm～800mm, and the lateral separation between two groups of burners is that the distance between 1000mm～2000mm ， lookout mouth 13 and the upper surface of exhaust base 7 is 1300mm～1600mm.

Said kiln height is 3000mm～5000mm, and designing this is highly because low lower than 3000mm furnace output, and energy consumption is large, higher than 5000mm kiln temperature, is difficult to control evenly, causes the product percent of pass that burns out not high; Kiln body width is 6000mm～12000mm, and kiln body length is 5000mm～8000mm, lower than above design minimum widith, can cause yielding poorly, and higher than above Breadth Maximum, kiln temperature is difficult to guarantee evenly.

Said sealing device 11 comprises casing 21, cylindrical shell 22 is housed on the inner bottom surface of casing 21, between the outer edge surface of cylindrical shell 22 and the inner edge surface of casing, form aqua storage tank 23, in aqua storage tank 23, water is housed, on the bottom surface of casing 21, there is the air inlet 24 being placed in cylindrical shell 22, air inlet 24 is connected with through hole 10, on the side of casing 21, there is the air outlet 25 higher than the water surface, air outlet 25 with take out hot induced-draft fan 12 and be connected, cylindrical shell 22 tops have diameter to be greater than cylindrical shell 22 and are placed in the cover body 26 in casing 21, montant 27 is equipped with in casing 21 outsides, dwang 28 is equipped with in montant 27 upper ends, a runner is respectively equipped with at the two ends of dwang 28, on two runners, rope 29 is housed, one end of rope 29 is connected with the cover body 26 in casing 21 through casing 21, balance weight 30 is housed on the other end.

Operation principle of the present utility model is, a standing groove is dug in the place of first placing at needs, exhaust base 7 is placed in standing groove, make kiln body and ground in same level, by the finished product common brick baking, according to the width pile in kiln to firing in chamber 6 in kiln, the burner in kiln of take in pile process is interval, be divided into burner number and add 1 row, stay between row and row a gap consistent with burner width, reserving this gap, is to guarantee that kiln temperature is even on the one hand, is to guarantee that brick can not cause because of the high-temperature firing of burner mouth distortion or aberration on the other hand, each row is divided into countless floats according to the different specification of brick, distance 10mm～20mm between two floats, often drain into and top to bottm in both sides, use the numerous through hole of brick code, guarantee that certain distance and the numerous Kong Jun of code are even in order to guarantee kiln temperature and atmosphere, after the good brick of above method code, wicket closes with the refractory brick grave of trying to plaster over the differences at the expense of principle, after installing kiln, start to fire, in burner 15, pass into air and natural gas, mix after-combustion, method for cooking is: initial oxidation flame rises to 600 ℃～900 ℃, now steam vent 9 and the through hole 10 of the gas in kiln body on exhaust base 7 discharged by taking out hot induced-draft fan 12 via the air inlet 24 in sealing device 11 and air outlet 25, then burn reducing flame, reducing flame temperature improves 100 ℃～200 ℃ than oxidizing flame, until thermocouple, detect and reach after the temperature of firing with reductive flame, cover body is declined, the lower surface of cover body is placed under the water surface, close sealing device, reach the object of sealing kiln body completely, Du Sai looks at mouth, kiln top discharges water to grave layer, make under the sealing state in not having outside air to enter, to reduce in whole kiln body cooling, be cooled to below 200 ℃, can open wicket, obtain the splendid blue bricks modelled after an antique of effect.

Thermocouple of the present utility model is by detecting the temperature in kiln body, the duty of controlling combustion fan 18 and taking out hot induced-draft fan 12 through frequency changer, and increase the rotating speed of blower fan or reduce the rotating speed of blower fan.

Advantage of the present utility model is:

1, the energy that whole process is burnt till is natural gas, has solved ancient method and has fired the energy with a large amount of high energy consumptions such as timber and coal and not environmental protection, generates carbon dioxide and water after combustion of natural gas simultaneously, and contaminated air, does not belong to cleaner production;

2, adopt conversion system control combustion air volume and smoke hot type air quantity, can guarantee that kiln temperature is even, make the pure and basic no color differnece of product colour burning out;

3, by the Seal Design of science, can make the interior reducing atmosphere of whole kiln even, can improve quality and the reduction effect of product;

4, by heating curve control accurately, the control of reduction temperature curve and the control of cooling curve, can make the qualification rate of product improve, reduce earth kiln and burn till the defect that cannot definitely control;

5, adopt and optimize design in rational kiln, can make kiln internal volume much larger than the volume of earth kiln, and firing period is also short than earth kiln, so output is large, less energy consumption.

Claims

1. a kiln body that adopts natural gas to fire blue bricks modelled after an antique, comprise metal shell, natural gas line and sealing device, it is characterized in that, the rectangle frame that metal shell (1) is upper end open, heat-preservation cotton layer (2) is housed on the framework inner edge surface of rectangle frame, on heat-preservation cotton layer (2) inner edge surface, there is fire brick layer (3), there is arch top (4) fire brick layer (3) upper end, there is grave layer (5) (4) upper surface, arch top, form kiln body, fire brick layer (3 and arch top (4) form and fire chamber (6), exhaust base (7) is arranged at kiln body bottom, in exhaust base (7), there is discharge chamber (8), discharge chamber (8) through the steam vent (9) of exhaust base (7) upper surface with fire chamber (6) and be connected, exhaust base (7) has through hole (10) on lower surface, through hole (10) is connected with sealing device (11) through pipeline, sealing device (11) through pipeline with take out hot induced-draft fan (12) and be connected, kiln body left and right sides are equipped with successively from top to bottom and fire chamber (6) and be communicated with lookout mouth (13), thermocouple (14) and burner (15), burner (15) is connected with air delivery pipe (17) with gas delivering pipe (16) through pipeline, air delivery pipe (17) is connected with combustion fan (18) through pipeline, combustion fan (18) with take out hot induced-draft fan (12) and be connected with frequency changer (19), frequency changer (19) is connected with thermocouple (14), on kiln body front end face, there is wicket (20).

2. employing natural gas according to claim 1 is fired the kiln body of blue bricks modelled after an antique, it is characterized in that, Suo is Shuoed lookout mouth (13), thermocouple (14) and burner (15) all 4 groups.

3. employing natural gas according to claim 1 is fired the kiln body of blue bricks modelled after an antique, it is characterized in that, on said metal shell (1) outer edge surface, skeleton is housed.

4. employing natural gas according to claim 1 is fired the kiln body of blue bricks modelled after an antique, it is characterized in that, the distance of the inner face of the outer face of said burner (15) and fire brick layer (3) is 10-20 centimetre.

5. employing natural gas according to claim 1 is fired the kiln body of blue bricks modelled after an antique, it is characterized in that, distance between the upper surface of said burner (15) and exhaust base (7) is 300mm～800mm, lateral separation between two groups of burners is that the distance between 1000mm～2000mm ， lookout mouthful (13) and the upper surface of exhaust base (7) is 1300mm～1600mm.

6. employing natural gas according to claim 1 is fired the kiln body of blue bricks modelled after an antique, it is characterized in that, said kiln height is 3000mm～5000mm, and kiln body width is 6000mm～12000mm, and kiln body length is 5000mm～8000mm.

7. employing natural gas according to claim 1 is fired the kiln body of blue bricks modelled after an antique, it is characterized in that, said sealing device (11) comprises casing (21), cylindrical shell (22) is housed on the inner bottom surface of casing (21), between the outer edge surface of cylindrical shell (22) and the inner edge surface of casing, form aqua storage tank (23), aqua storage tank is equipped with water in (23), on the bottom surface of casing (21), there is the air inlet (24) being placed in cylindrical shell (22), air inlet (24) is connected with through hole (10), on the side of casing (21), there is the air outlet (25) higher than the water surface, air outlet (25) with take out hot induced-draft fan (12) and be connected, (22 tops have diameter to be greater than cylindrical shell (22) and are placed in the cover body (26) in casing (21) cylindrical shell, montant (27) is equipped with in casing (21) outside, dwang (28) is equipped with in montant (27) upper end, a runner is respectively equipped with at the two ends of dwang (28), rope (29) is housed on two runners, one end of rope (29) is connected with the cover body (26) in casing (21) through casing (21), balance weight (30) is housed on the other end.