JPS59137704A - Coal burning method with rotary cylinder and device therefor - Google Patents

Abstract

PURPOSE:To make a burning device of low capacity and facilitate ash treatment by a method wherein coal is burned in an inclined rotary cylinder. CONSTITUTION:When coal is burned, coal 8 is put in an inclined rotary cylinder 1, the coal is burned in the cylinder while it is moved from the coal insertion inlet 8 to ash ejecting outlet 7 under rotation of the cylinder, and finally ash 8A is removed from the outlet of the cylinder. Air correponding to the amount of burned coal is supplied into the rotary cylinder under forced blasting from forced blasting holes 6 made at the side surface of coal insertion inlet and the entire outer wall surface through forcing duct 4, etc.

Description

Detailed Description of the Invention When burning coal, this invention pushes the coal into a rotating cylinder, and burns the coal while moving the coal from the space gA to the outlet by rotating and tilting the cylinder. The present invention relates to a method and an apparatus for supplying the amount of air necessary for coal combustion to burn coal.

Conventionally, solid fuels such as coal have been burnt using a grate combustion method and a burner in which they are pulverized and then combusted. N
There is a method of baking. Although these have a rich track record of being used as coal combustion equipment, they have drawbacks such as high equipment costs and a large eIfli area, so it is difficult to use them as a substitute for heavy oil combustion equipment. be.

The present inventors arrived at the present invention while proceeding with the development of a coal combustion device that has low equipment costs, a small installation area, and can be substituted for the currently used heavy oil combustion devices. According to the method of the present invention, the contact state between coal and combustion air is significantly improved compared to the grate combustion method, etc., so that the capacity of the combustion device can be reduced to 9N8, and the installation cost can also be significantly reduced. In addition, it will provide a leading technology for expanding the use of coal in the future, such as by making it possible to replace the conventional heavy oil-burning boiler with a coal-burning boiler.

Hereinafter, details of a suitable example of the present invention will be explained with reference to the drawings.

The first invention is a rotating circle 1 with an inclination when burning coal.
Coal 8 is put into the cylinder, and by the rotation of the cylinder, the coal is moved in large quantities from the coal insertion port 51141 of the cylinder to the lower part, and burned in an interleaved circle, and finally the ash 8A is taken out from the circular part outlet. There is.

The coal combustion apparatus according to the second invention is constructed as a rotary inward-facing type in which a large number of press-in ventilation holes 6 are formed in the rotating inward-facing outer wall surface 1 for supplying an amount of air commensurate with the amount of coal to be burned.

Therefore, the above will be described in detail 1- Coal is mechanically fed into the rotating circular direction 1 by the coal insertion hole 5 and ignited.

After ignition, the rotating IXtn device 2 and the receiver rotate the cylinder 1 in the direction of the arrow mark using the roller 3. At the same time, air corresponding to the amount of combustion coal is forced through the duct 4, etc., and is supplied to the rotating circle [4 circles by forced ventilation from the forced ventilation holes 6 on the narrow surface of the coal insertion port and the entire outer wall surface of the cylinder (in the figure, arrow 4) indicates air flow). The charcoal moving while being moved by the rotation of the cylinder 1 burns violently when combined with the air that makes up the entire outer wall of the cylinder, tilting toward the ash outlet, and as the cylinder rotates, it burns while moving a lot towards the lower side. It turns into ash and falls into the ash removal device from the ash outlet. Eri extracts coal energy and uses it for this continuous action.

Next, to explain the example, the rotation is 8 and the inner diameter is 4.
00xa, length 1500111 yen, 60 yen per hour, rotating cylinder inclination 6°, forced air flow rate 8.2 s-"/m1n, s coal used for combustion U
Complete combustion occurred at -5500"/. At this time, the ash outlet temperature was 950°C, and the rotating cylinder intermediate part I
The IA degree is 950℃, and the coal combustion equipment during combustion is 1020℃.
Met. However, the material used for the rotating cylinder was a punched metal with a diameter of 6 tIm and an aperture ratio of 20.2. In addition, 9 is a screw conveyor arranged at the ash outlet portion so that the longitudinal direction of the rotating cylinder is parallel to the longitudinal direction, and 10 is an ignition burner, which is also used to supplement the load when the force alJ- is insufficient. Ru. 11 is a cover that has been subjected to heat insulation treatment.

As described above, the present invention requires less combustion space than the conventional split lit, and the device itself is easier to use. It is possible to greatly change the combustion load by easily adjusting the supply tray using the coal supply device. Since the combustion vessel is circular, the materials used are more durable than conventional grates and stokers. Furthermore, it is a very useful method and device that can be used as part of the burner of a boiler system that uses oil.

[Brief explanation of the drawing]

The drawings show a 1-Ja example of the present invention, in which Fig. 1 is a perspective view of the main parts, Fig. 2 is a perspective view of the rotating cylinder, Fig. 3 is a front view of the rotating cylinder, and Fig. 4 is the same as above. 5 is a rear view, FIG. 6 is a side view with the cover cut away, and FIG. 7 is a rear view of the whole. 1110 rotation circle, 410. Push-in duct, 60.6 push-in ventilation hole.

Claims (1)

[Scope of Claims] fil When burning coal, coal is placed in a rotating cylinder with an inclination, and the coal is burned within the cylinder while being moved from the lime port side to the ash outlet side of the cylinder by the rotation of the cylinder, A coal combustion method using a rotating circle, characterized in that ash is finally taken out from the F3 facing outlet. (2) On the outer wall facing inward of the rotation, the proportion of the burning coal n is 5.
A coal combustion device characterized by being of a rotating circular type having a large number of forced ventilation holes for supplying air.