JP2007187333A - Burning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a burning device that can reduce air consumption and power consumption. <P>SOLUTION: Air forced into a burning furnace is air produced by blowers 12 and 22. A furnace body 5 is covered with a heat insulator, and the material of the heat insulator is a ceramic powder reinforced with an inorganic fiber. Upper and lower faces of the furnace body 5 are a paneled heat insulator 10, and side faces thereof are a quilted heat insulator 11. Exhaust heat in an exhaust duct 1 is recovered by a heat exchanger 13 and used for preheating objects 2 to be input for treatment. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a baking apparatus for performing a baking process on various members.

  Conventionally, as shown in the schematic configuration diagram of the main part of the conventional baking apparatus in FIG. 3, the furnace 5 used in the baking furnace is usually heated and fired. For example, the workpiece 2 is transported by the transport mechanism 3 and is passed through the furnace body 5 to perform a predetermined firing process.

  Further, an exhaust duct 1 for exhaust is provided, and purge air 8 and cooling air 7 are driven by compressed air 6 into a firing furnace.

As prior art document information relating to this application, for example, Patent Document 1 is known.
JP 2001-330371 A

  However, the conventional baking apparatus uses a method in which compressed air 6 is used as the air to be driven into the baking furnace, and this method requires a large amount of air consumption and high air cost.

  In addition, the furnace body 5 is not provided with a heat insulating structure, and in this method, the necessary heat insulation (unnecessary heat diffusion prevention) is insufficient, and the heat in the firing furnace escapes to the outside and the efficiency is increased. Poor and power consumption increases.

  Furthermore, the exhaust heat is also released to the outside, and this method has a problem that heat recovery is difficult and efficiency is low, and therefore, the air consumption and power consumption of the baking apparatus itself are large. It was.

  The present invention is to solve the above-mentioned problems, and the air to be injected into the firing furnace is changed from compressed air to air by a blower, and the furnace body has a heat insulating structure and uses ceramic powder reinforced with inorganic fibers as a heat insulating material. Panel heat insulation is used on the upper and lower surfaces of the furnace body, quilting heat insulation is used on the side, and exhaust heat is recovered by a heat exchanger, which is used as preheating for the workpiece before being charged. Thus, an object of the present invention is to provide a baking apparatus capable of reducing air consumption and power consumption.

  In order to achieve the above object, the present invention has the following configuration.

  The invention according to claim 1 of the present invention is a firing apparatus for performing a predetermined firing process while passing the hollow object of the furnace body constituting the firing furnace, in particular, in the firing furnace. It has a configuration in which the air to be driven is air generated by a blower, thereby having only the necessary and optimum air amount and the effect of reducing air consumption.

  The invention described in claim 2 of the present invention particularly has a configuration using ceramic powder reinforced with inorganic fibers as a heat insulating material, thereby preventing unnecessary diffusion of heat during heating and firing, It has high heat resistance, excellent heat insulation, and has the effect of reducing power consumption.

  The invention according to claim 3 of the present invention has a configuration in which panel type heat insulating materials are used on the upper and lower surfaces of the furnace body, and quilting type heat insulating materials are used on the side surfaces. It has a function and effect that it is simple and the heat insulation effect is increased and the power consumption can be reduced.

  The invention according to claim 4 of the present invention has a configuration in which the exhaust heat of the baking furnace is recovered by a heat exchanger and used as preheating of the object to be processed before charging. Use efficiency is improved and power consumption can be reduced.

  The firing apparatus of the present invention uses blower air to be fired into a firing furnace, a furnace body covered with a heat insulating material, a ceramic powder reinforced with inorganic fibers as a heat insulating material, and a panel type on the upper and lower surfaces of the furnace body. Use heat insulation, use quilted heat insulation on the side, and recover waste heat with a heat exchanger and use it as preheating of the workpiece before charging, reducing air consumption and power consumption It has the effect of being able to.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic configuration diagram of a main part of a baking apparatus according to an embodiment of the present invention, and FIG. 2 is a perspective view of a main part structure for explaining a heat insulating material in the baking apparatus.

  In FIG. 1, a furnace body 5 is a central structural body that constitutes a firing furnace that performs various firing treatments, and is a hollow that allows a belt-like body made of a high heat-resistant material to pass through a transfer mechanism 3 that is mounted with a workpiece 2 and is movable. And is formed by a heater 4 and a heater block for heating, and a predetermined firing process is performed by passing the workpiece 2 through the hollow of the furnace body 5 in the firing furnace.

  The air generated by the blower 12 and the blower 22 is driven into the firing furnace as the front purge air 8 and the rear cooling air 7.

  The furnace body 5 has an internal heat insulating structure covered with a heat insulating material using ceramic powder reinforced with inorganic fibers, and a panel type heat insulating material 10 as shown in FIG. The flexible quilting type heat insulating material 11 is similarly applied to the side surface so as to be optimal for heat insulation in the structural configuration of the furnace body 5.

  Further, exhaust heat from the exhaust duct 1 is recovered by a heat exchanger 13 and used as preheated air 14 for preheating the workpiece 2 before being put into the firing furnace.

  The purge air 8 and the cooling air 7 are driven into the firing furnace by the blower 12 and the blower 22, so that the necessary and optimum air is obtained and the air consumption can be reduced.

  Also, the furnace body 5 has an internal heat insulating structure that covers the heat insulating material, ceramic powder reinforced with inorganic fibers is used as the heat insulating material, the panel-type heat insulating material 10 is provided on the upper and lower surfaces of the furnace body 5, and the quilting type heat insulating material is provided on the side surface. The material 11 is used, and the exhaust heat from the exhaust duct 1 is recovered by the heat exchanger 13 and used as the preheated air 14 of the workpiece 2 before being charged, thereby reducing air consumption and reducing power consumption. Reduction can be achieved.

  The firing apparatus according to the present invention has an effect of reducing air consumption and power consumption, and is useful as a firing apparatus used for firing treatment of various members.

Main part outline | summary block diagram of the baking apparatus in embodiment Main part configuration perspective view for explaining a heat insulating material in the baking apparatus Overview of main components of conventional firing equipment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Exhaust duct 2 To-be-processed object 3 Conveyance mechanism 4 Heater 5 Furnace body 6 Compressed air 7 Cooling air 8 Purge air 10 Panel type heat insulating material 11 Quilting type heat insulating material 12, 22 Blower 13 Heat exchanger 14 Preheated air

Claims (4)

In the firing apparatus for performing a predetermined firing process while passing the object to be treated passing through the hollow of the furnace body constituting the firing furnace, the air driven into the firing furnace is air generated by a blower. A firing apparatus. The firing apparatus according to claim 1, wherein the furnace body has an internal heat insulating structure that covers the heat insulating material, and ceramic powder reinforced with inorganic fibers is used for the heat insulating material. The firing apparatus according to claim 2, wherein panel-type heat insulating materials are used on the upper and lower surfaces of the furnace body, and quilting-type heat insulating materials are used on the side surfaces. The calcining apparatus according to claim 2, wherein the waste heat of the calcining furnace is recovered by a heat exchanger and used as preheating of the workpiece before being charged.

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