CN2760482Y

CN2760482Y - Gas down-draft kiln

Info

Publication number: CN2760482Y
Application number: CN 200420097065
Authority: CN
Inventors: 岳增文; 李有才; 肖长侠
Original assignee: ZHONGQI REFRACT CO Ltd SHANDONG
Current assignee: ZHONGQI REFRACT CO Ltd SHANDONG
Priority date: 2004-10-15
Filing date: 2004-10-15
Publication date: 2006-02-22
Anticipated expiration: 2014-10-15

Abstract

The utility model provides a gas down-draft kiln which mainly comprises a kiln crown, kiln walls, a kiln bottom, a kiln chamber, burner nozzles, a gas channel, etc. The utility model is characterized in that a plurality of pairs of burner nozzles are symmetrically arranged on the left side, the right side, or the circumference of the rectangular or circular kiln bottom, and the burner nozzles are arranged upward in the kiln and are abutted on the kiln walls; the number of the burner nozzles is determined by the volume of the kiln, the distance between two adjacent burner nozzles is less than 2 meters and the burner nozzles are tightly abutted on the kiln walls. The utility model mainly has the advantages that the burner nozzles are upward arranged in the kiln so that the direction of the flame and the motion direction of the gas in the kiln are consistent, and the utility model reduces the motion resistance force for the gas, reduces temperature difference in the kiln form top to bottom, simultaneously prevents the deposited carbon or the coke formation from easily occurring because the flame is directly contacted with a fire blocking wall and saves fuel.

Description

The combustion gas down-draft kiln

Technical field

The utility model belongs to a kind of Industrial Stoves, particularly down draught kiln furnace.

Background technology

Tradition is used for firing the down-draft kiln of fire resistive material product, mainly contain Yao Ding, Yao Qiang, Yao Tang, kiln at the bottom of, several parts such as combustion chamber, firebreak, flue form, fuel mostly is bituminous coal.Fuel is in the combustion chamber internal combustion, and combustion product rises to the kiln top under the guiding of firebreak, flows backwards from the kiln top and passes the adobe that is placed in the kiln hall, heats after the adobe by the suction fire hole that is located at the bottom of the kiln to enter flue, discharged by chimney.Owing to utilized vertical shunting rule, made the temperature distribution uniform on the same cross section in the kiln.Combustion gas or fuel oil down-draft kiln are then installed a burning and are chewed before each combustion chamber, the flame level sprays in the kiln.Because the flame level sprays into, be unfavorable for that combustion product rises to the kiln top, carbon deposit and coking occur at the firebreak place easily.In addition, the combustion chamber is set before kiln chews the complexity that has also increased Yao Qiang and brick type with burning, reduced the overall performance of kiln, increased heat radiation, the operating environment environment is abominable simultaneously, temperature is very high.

Summary of the invention

The utility model provides a kind of novel gas down-draft kiln, spray into for solving existing combustion gas down-draft kiln flame level, be unfavorable for that combustion product rises to the kiln top, occurs the problem of carbon deposit and coking easily at the firebreak place, also in order to simplify furnace construction, improve workman's operating environment simultaneously.

The technical scheme of the novel gas down-draft kiln that the utility model proposed is: a kind of combustion gas down-draft kiln, mainly include Yao Ding, Yao Qiang, kiln at the bottom of, the kiln hall, burn and chew and formation such as flue.It is characterized in that in rectangle or circle on the left and right sides or the circumference, the symmetric arrangement number is chewed burning at the bottom of the kiln, burning is chewed and is directed upwardly and is built in the kiln and near the kiln wall.Burning is chewed the volume decision of quantity by kiln, and adjacent two burn the distance of chewing should burn and chew near the kiln wall less than 2 meters.

Described burning is chewed and is mainly chewed brick, combustion-supporting airduct and cartridge by burning and form.

Described combustion-supporting airduct pours into into the tubulose of mutual UNICOM with castable refractory at kiln foundation of wall and kiln within the walls, chews brick with burning for one and joins, and other end and combustion air air feed pipe link.

Described cartridge is made " skew T " shape by common seamless steel pipe or welded pipe, and builds by laying bricks or stones in the kiln foundation of wall, and an end and burning are chewed brick and joined, and fuel air supply pipe control valve links before an end and the kiln, and the other end seals with blind dish, is used for deashing.

Described burning is chewed brick, can be unshape refractory, also can be shaping refractory product, mainly forms two groups of through holes that are isolated from each other, one group of logical fuel gas, and one group leads to combustion air, changes size, shape or the angle of two groups of through holes, can change flame length.

Described kiln wall is the MULTILAYER COMPOSITE brick setting, chews the outside in burning, and chews the position in each burning and establish a through hole and a plate brick, is used for lighting a fire and regulating the combustion air size.

At the bottom of described Yao Ding, the kiln, the kiln hall is identical with common down-draft kiln with flue etc., and heat exchanger can be set in flue, is used to heat combustion air.

Adopt the utility model to mainly contain following advantage: 1) burning is chewed built-in, and arrange up, make flame consistent with gas motion direction in the kiln, reduced the gas motion resistance, help dwindling upper and lower temperature difference in the kiln, also prevented the carbon deposit or the coking of appearance easily simultaneously, saved fuel because flame directly contacts firebreak; 2) owing to removed fire-box and fire-box crown, thereby simplified the kiln wall construction, strengthened the sealing of kiln body, reduced the heat radiation of kiln body, not only helped energy-conservationly, and made the kiln body build easier carrying out by laying bricks or stones; 3) simple in structure, make easily, do not need to purchase special-purpose the burning and chew, saved investment; 4) owing to do not have fire-box on the kiln wall, chew built-inly and burn, make that temperature and noise obviously reduce before the kiln, improved workman's operating environment.

Description of drawings:

Fig. 1: 250m ³Novel gas down-draft kiln structural representation;

1 burning is chewed; 2 cartridges; 3 combustion-supporting airducts; 4 kilns top; 5 kiln halls; At the bottom of 6 kilns; 7 kiln walls; 8 flues;

Fig. 2: amplification view is chewed in the downdraf klining;

2 cartridges; At the bottom of 6 kilns; 7 kiln walls; 3-1 combustion air arm; 10 cleaning doors; The 3-2 combustion air is responsible for; 11 firebreaks; 12 burnings are chewed brick.

The specific embodiment

Referring to Fig. 1, Fig. 1 is 250m ³Novel gas down-draft kiln structural representation, it is mainly by 6 surrounding kiln hall 5 at the bottom of kiln top 4, kiln wall 7 and the kiln, connect with flue 8 at the bottom of the kiln, burning is chewed 1 relative both sides and even distribution the at rectangular cross section, combustion-supporting airduct 3 and cartridge 2 are built by laying bricks or stones at kiln within the walls, and fuel and combustion air are respectively chewed brick 12 ejections, mixed and burning since burning, after combustion product rises to kiln top 4, flow backwards again and heat adobe, at the bottom of kiln 6 and flue 8 expel from kiln.

Referring to Fig. 1 and Fig. 2, a kind of combustion gas down-draft kiln mainly contains at the bottom of kiln top 4, kiln wall 7, the kiln 6, kiln hall 5, burns and chew 1 and formation such as flue 8.On 6 left and right sides or circumference at the bottom of rectangle or the round kiln, the symmetric arrangement number chews 1 to burning, and burning is chewed 1 and is directed upwardly and is built in the kiln and near kiln wall 7.

Kiln wall 7 is the MULTILAYER COMPOSITE brick setting, and chews 1 outside in burning, chews 1 position in each burning and establishes a through hole and a plate brick, is used for lighting a fire and regulating the combustion air size.

Burning is chewed 1 and is mainly chewed brick 12, combustion-supporting airduct 3-1,3-2 and cartridge 2 by burning and form.

Cartridge 2 is made " skew T " shape by common seamless steel pipe or welded pipe, and builds by laying bricks or stones in kiln wall 7 bases, and an end and burning are chewed brick 12 and joined, and fuel air supply pipe control valve links before an end and the kiln, and the other end seals with blind dish.

It can be unshape refractory that burning is chewed brick 12, also can be shaping refractory product, mainly forms two groups of through holes that are isolated from each other, one group of logical fuel gas, and one group leads to combustion air, changes size, shape or the angle of two groups of through holes, can change flame length.

Can in flue 8, heat exchanger be set, be used to heat combustion air.

Certainly, the utility model is not limited to above-mentioned giving an example, and in essence intention scope of the present utility model, the utility model also has many variations, remodeling or replacement, all should belong to protection domain of the present utility model.

Claims

1 one kinds of combustion gas down-draft kilns, at the bottom of mainly including Yao Ding, Yao Qiang, kiln, the kiln hall, burn and chew and formation such as flue, it is characterized in that in rectangle or circle, at the bottom of the kiln on the left and right sides or the circumference, the symmetric arrangement number is chewed burning, burns to chew to be directed upwardly and to be built in the kiln and near the kiln wall.

2 combustion gas down-draft kilns as claimed in claim 1 is characterized in that the kiln wall is the MULTILAYER COMPOSITE brick setting, and chew the outside in burning, chew the position in each burning and establish a through hole and a plate brick.

3 combustion gas down-draft kilns as claimed in claim 1 is characterized in that burning chewing and chew brick, combustion-supporting airduct and cartridge by burning and form.

4 as claim 1 or 2 or 3 described combustion gas down-draft kilns, it is characterized in that cartridge makes " skew T " shape by common seamless steel pipe or welded pipe, and build by laying bricks or stones in the kiln foundation of wall that an end and burning are chewed brick and joined, fuel air supply pipe control valve links before one end and the kiln, and the other end seals with blind dish.

5 as claim 1 or 2 or 3 described combustion gas down-draft kilns, it is characterized in that burning chewing brick, and be unshape refractory, or shaping refractory product, form two groups of through holes that are isolated from each other, one group is logical fuel gas through hole, one group of logical combustion air through hole.

6 as claim 1 or 2 or 3 described combustion gas down-draft kilns, it is characterized in that being provided with in flue heat exchanger.