JPH0596723U - Infrared burner - Google Patents

Abstract

(57) [Abstract] [Purpose] An infrared burner that can be used for heating when the work transfer path is bent or when two or more works are transferred in different directions. [Composition] A combustion plate made of a porous material is provided on the front face of a mixed gas chamber filled with a mixed gas of a fuel gas and air, and the mixed gas is burned on the surface of the combustion plate. In this infrared burner, a plurality of combustion plates were arranged on the surfaces intersecting with each other.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an infrared burner suitable for drying and heating paper, cloth and the like.

[0002]

[Prior Art]

 An infrared burner that burns a mixed gas of fuel gas and air on the surface of a combustion plate made of a porous material to dry or heat a work such as paper or cloth passing in front of the combustion plate. Is used. Since this type of infrared burner is comparatively long, it is often the case that multiple combustion plates are connected in one direction, but in the conventional case, all combustion plates were placed on the same plane.

[0003]

[Problems to be solved by the device]

 Therefore, the conventional infrared burner described above is suitable for a work that is linearly conveyed in one direction, but when the work conveyance path is bent or two or more works are different from each other. It was not possible to heat the corner when it was transported in the direction. Of course, it is not possible to handle the corner heating by combining a plurality of infrared burners, but even in that case, it is difficult to arrange the infrared burners so that they do not interfere with each other, so There were many problems such as it was troublesome to adjust the heat radiation amount. Then, this invention makes it a subject to provide the infrared burner suitable for the heating of the workpiece | work which moves to a right angle direction, for example.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention has the following configuration. That is, in the infrared burner according to the present invention, a combustion plate made of a porous material is provided on the front surface of a mixing gas chamber filled with a mixed gas of fuel gas and air, and the combustion plate made of a porous material is provided on the front surface of the combustion plate. An infrared burner configured to burn a mixed gas, characterized in that the burning plates are arranged on surfaces intersecting with each other, and a heating portion having a cross-section key is formed.

[0005]

[Action]

 By appropriately setting the mutual angles of the plurality of combustion plates, it becomes possible to use it when the work carrying path is bent or when two or more works are carried in different directions.

[0006]

【Example】

 1 to 3 are external views of a main part of one embodiment of the present invention, and FIG. 4 is a sectional view showing the inside thereof. In this infrared burner 1, a pair of mixing chambers composed of a first mixed gas chamber 2 and a second mixed gas chamber 3 are arranged at right angles, and a porous material is formed in front of the first mixed gas chambers 2, 2. Combustion plates 5, 5 made of ceramic material are provided respectively. The first mixed gas chamber 2 and the second mixed gas chamber 3 are provided at a constant interval. A mixed gas of fuel gas and air is supplied to the second mixed gas chamber 3 from the inflow ports 6, ... And the mixed gas in the second mixed gas chamber 3 is constantly fed into the first mixed gas chamber 2 by the nozzles 7 ,. It is discharged in quantities. Then, the mixed gas in the first mixed gas chamber 2 reaches the surface of the plate through the pores of the combustion plate 5 and is burned there.

As shown in FIG. 5, the nozzle 7 is screwed onto the threaded boss 10 welded to the outer shells of the first mixed gas chamber 2 and the second mixed gas chamber 3 from the side of the second mixed gas chamber. The tip portion 12a of the needle valve 12 is fitted in the vicinity of the opening of the hollow portion 11 that opens to the side of the second mixed gas chamber. In the inner part of the hollow portion 11, a plurality of orifices 14, ... Which communicate with the first mixed gas chamber 2 are radially provided. The needle valve 12 is screwed from the outside to a threaded boss 15 welded to the back side of the outer shell of the second mixed gas chamber 3 by a mounting screw 16, and is fitted into an engagement groove 17 formed on the rear end surface. It is possible to move back and forth by engaging and turning a driver etc. When this advances, the gap 18 between the hollow portion 11 of the nozzle 7 and the inclined tip portion 12a of the needle valve 12 becomes narrower, and the discharge amount of the mixed gas decreases. On the contrary, when the needle valve 12 is retracted, the gap 18 widens and the discharge amount of the mixed gas increases. Reference numeral 19 in the figure is a cap nut that serves both as a seal and for protecting the needle valve 12.

The first mixed gas chamber 2 is divided into two front and rear spaces 2a and 2b by a perforated plate 21, and an annular baffle plate 22 surrounding the nozzle 7 and an end of the baffle plate in the rear space 2b. A perforated cover plate 23 attached to the section is provided. With such a configuration, the mixed gas is evenly distributed over the entire back surface of the combustion plate 5, and effective combustion can be performed.

The needle valve 12 is not always necessary. Instead of adjusting the supply amount of the mixed gas with the needle valve 12, the amount of the mixed gas is adjusted in advance by an adjusting device provided outside, and then the mixed gas is mixed with the second mixed gas. It may be configured to be fed into the chamber 3.

As described above, the first mixed gas chamber 2, the second mixed gas chamber 3 and the combustion plate 5 constitute one set of units. In the case of the infrared burner 1, the burner plate shown in FIG. 5 has a unit A whose surface faces downward, and a unit B whose surface of the combustion plate 5 faces right in FIG. That is, the combustion plates 5, 5 of both units A, B are arranged so that the surface side faces outward on the planes that intersect each other (orthogonal in the illustrated example) in a hook-shaped cross section. Since the infrared burner 1 has a long shape that is long in the left-right direction, both units A and B each have a plurality of (12 in the illustrated example) combustion plates 5, ... There is. The nozzle mounting positions of both units A and B are provided in alternate positions so as not to interfere with each other.

Cooling air chambers 30 (A, B, C) are provided at the outer and inner portions of both units A, B. The outer air chamber 30 (A, B) has a rectangular cross section, and the inner air chamber 30 (C) has a complicated cross sectional shape as shown in FIG. These air chambers 30 (A, B, C) are communicated with each other by communicating portions 31, 31 at both ends, and air supply ports 32, 32 are formed at the center of the air chambers 30 (A, B). There is.

Each of the air chambers 30 (A, B, C) is attached to the first and second mixed gas chambers 2 and 3 at a predetermined distance. Further, the front portion of the steel plate forming the first mixed gas chamber 2 is a mounting plate 34 projecting like a flange in front of the air chamber 30, and the mounting plate and the air chamber 30 form a spacer 35 having a predetermined thickness. It is stuck and pinched. Further, a plate pressing plate 36 whose outer end is bent along the corner of the air chamber 30 is attached to the front surface side of the mounting plate 34, and the burning plate 5 is fixed at a fixed position on the inner end of the plate pressing plate. Hooks 37, ... for fixing to the are fixed. In this way, space portions are formed between the air chamber 30 and the first and second mixed gas chambers 2 and 3 and between the air chamber 30 and the mounting plate 34, which are air passages 39 and 40. . A large number of through holes 41, ... Connecting the air chamber and the air passage are formed in the outer shell of the air chamber 30 facing the air passages 39 and 40.

The cooling air sent from the air supply port 32 into the air chamber 30 is discharged into the air passages 39, 40 from the through holes 41 ,. The air discharged from the through hole 41 (1) is directly blown to the side wall portion of the first mixed gas chamber 2 to effectively cool the outer shell of the mixed gas chamber 2. The air discharged from the through holes 41 (2, 3) is blown to the mounting plate 34 and cools the mounting plate 34 which is at a high temperature due to heat transfer from the first mixed gas chamber 2. For this reason, the mounting plate 34 is prevented from being deformed by thermal strain. The air discharged from the through holes 41 (1, 2) flows out through the air passages 39, 40 to the outside from the opening 39a. The air flow at this time causes the side wall of the second mixed gas chamber 3 to flow. Be refrigerated. Air also flows into the space 42 between the two mixed gas chambers 2 and 3, and the rear surface of the first mixed gas chamber 2 and the front surface of the second mixed gas chamber 3 are also cooled. Since the first and second mixed gas chambers 2 and 3 are separated except for the boss 15, the heat of the first mixed gas chamber 2 is hard to be transferred to the second mixed gas chamber 3, and as described above, Since the 2 mixed gas chamber 3 is effectively cooled, the mixed gas in the 2nd mixed gas chamber 3 is prevented from becoming an abnormally high temperature.

The infrared burner 1 is suitable for use in a step of bonding two sheets of paper with an adhesive as shown in FIG. 6, for example. Reference numeral 50 in the figure denotes a press roller, each rotating in the direction of the arrow. Two sheets of paper 51, 52 with an adhesive applied on the back side are conveyed from the direction perpendicular to each other to the position of the press rollers 50, 50, and the press rollers press the two together. .. The applied adhesive has the property of melting above a certain temperature, and is heated by a burner just before pressing to melt it. As shown in the figure, if the infrared burner 1 of the present invention is installed so as to face the intersection P in the transport direction of both papers, the combustion plate 5 of the unit A will transport the paper 51 transported from above in the figure, It is possible to simultaneously heat the papers 52 conveyed from the right side in the figure to the same extent by the combustion plate 5 at the same time. Since the heating position is very close to the press rollers 50, 50, the bonding is performed well. When the conventional infrared burner 55 is used, it must be installed at a position relatively distant from the intersection P as shown by the chain line in FIG. 4, and the adhesive does not solidify when passing through the press rollers 50. There was an inconvenience that it had started.

Incidentally, the infrared burners 1 ′ shown in FIG. 7 may be arranged so that the surfaces of the combustion plates 5 and 5 face inward. With this configuration, the work can be heated from the outside of the bent portion when the work transfer path is bent.

[0016]

[Effect of the device]

 As is apparent from the above description, the infrared burner according to the present invention can simultaneously heat a plurality of works W conveyed in the directions intersecting with each other, and the heating units are located at positions close to the intersection in the conveyance direction. It has the advantage of being in.

[Brief description of drawings]

FIG. 1 is a front view of an example of an infrared burner according to the present invention.

FIG. 2 is a plan view of the infrared burner shown in FIG.

FIG. 3 is a bottom view of the infrared burner shown in FIG.

FIG. 4 is a side sectional view of the infrared burner shown in FIG.

5 is a cross-sectional view of a main part of the infrared burner shown in FIG.

FIG. 6 is a diagram showing a usage state of the infrared burner shown in FIG. 1.

FIG. 7 is a diagram showing a configuration of a different infrared burner.

[Explanation of symbols]

 1,1 'Infrared burner 2 First mixed gas chamber 3 Second mixed gas chamber 5 Combustion plate 30 Air chamber

Claims (1)

[Scope of utility model registration request] 1. A combustion plate made of a porous material is provided on the front surface of a mixed gas chamber filled with a mixed gas of a fuel gas and air, and the mixed gas is burned on the surface of the combustion plate. An infrared burner configured in
An infrared burner, wherein the combustion plates are arranged on the surfaces intersecting with each other, and a heating portion having a hook-shaped cross section is formed.