JPS6026268Y2 - combustion furnace - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a combustion furnace that burns old automobile tires in their original form.

In recent years, energy problems have become extremely serious, and attempts have been made to reuse old automobile tires, which had traditionally been treated as waste, with difficulty in disposal, as an energy source, and various combustion furnaces have been proposed.

However, the mainstream of conventional combustion furnaces is to cut old tires into small pieces before feeding them into the furnace, and combustion furnaces that burn old tires in their original form take an extremely long time to ignite and are difficult to use. Not only that, but it was also dangerous.

Furthermore, in combustion furnaces that burn old tires in their original form, it is difficult to completely burn old tires, and they generate a considerable amount of smoke, including harmful gases, which causes pollution and is not practical. Ta.

Additionally, if old tires are burned as they are, as the tire burns, the wires in the bead, tread, etc. will fall and accumulate, blocking air supply and reducing combustion efficiency. Or the fire might go out.

The present invention was developed with these points in mind; it is easy to ignite, is easy to handle, and completely replaces old tires in their original shape without the remaining wires accumulating in place and interfering with the air supply. The purpose of the present invention is to provide a combustion furnace that can perform combustion without worrying about pollution, and its main features include a fuel storage chamber formed in a funnel shape and having a bottom plate with an opening in the center, and this fuel storage chamber. An air jet pipe is arranged continuously at the bottom of the fuel chamber and has a large number of air jet holes in the direction of its central axis, and the fuel that has been crushed or gasified in the fuel storage chamber is received from the bottom plate opening. a combustion chamber for combustion, a ring pipe arranged near the bottom plate opening in the fuel storage chamber and having a large number of air ejection holes, an ignition device having an oil tray arranged adjacent to the ring pipe, and the ignition device. The combustion furnace is connected to an air supply section and includes a plurality of branch pipes each having a vertical section hanging from the ring pipe and an inclined section communicating with the vertical section.

Embodiments will be described in detail below according to embodiments shown in the drawings.

FIG. 1 is a sectional view showing an embodiment of the present invention.

In the figure, reference numeral 1 denotes a fuel storage chamber in which used tires 11 as fuel are stacked and stored in their original shape. It is composed of a bottom plate 14 which is formed in a shape and has an opening 13 in the center thereof, and a lid body 15 that covers the upper surface of the storage chamber main body 12.

Further, in the vicinity of the opening 13 of the bottom plate 14, a large number of pins 16 facing toward the center are implanted.

Reference numeral 2 denotes a combustion chamber disposed continuously in the lower part of the fuel storage chamber 1, which is divided into two by a loss dollar 21 into an upper combustion chamber 22 and a lower combustion chamber 23.

A pipe 24 for supplying air necessary for combustion of fuel within the combustion chamber 2 is arranged on the central axis of the combustion chamber 2, and this air jet pipe 24 has numerous air jet holes 25.
is open.

Here, the air jet holes 25 of the air jet pipe 24 are uniformly distributed in the upper stage combustion chamber 22, and in the lower stage combustion chamber 23, they are arranged at a high density in about two rows downward.

Furthermore, a chimney 26 extends from the lower part of the lower combustion chamber 23 to discharge combustion gas.

Reference numeral 3 denotes an ignition device disposed near the opening 13 of the bottom plate 14 in the fuel storage chamber 1, the details of which are shown in FIGS. 2 and 3.

FIG. 2 is an enlarged plan view showing the main parts of this embodiment, and FIG. 3 is a half sectional view thereof.

The ignition device 3 is composed of a donut-shaped ring pipe 31 and an oil tray 32 surrounding the ring pipe 31, and the ring pipe 31 has a large number of air ejection holes 33 arranged in layers.

The oil tray 23 is a receiving tray for kerosene for ignition, and has an air jet hole 33 formed in the ring pipe 31 at its periphery.
A barrier 34 that causes the airflows ejected from some of the lowermost ones to collide and create a turbulent flow on the surface of the kerosene, and a notch that allows the airflow ejected from the remaining air ejection holes 33 at the lowermost step to go straight. It is equipped with 35.

Furthermore, spacers 36 are welded to the upper surface of the ring pipe 31 at a plurality of locations, and a plurality of air ejection holes 37 for ejecting air downward are formed on the lower surface.

Reference numeral 4 designates branch pipes for connecting the ignition device 3 to the air supply section, and three branch pipes are provided in this embodiment.

This branch pipe 4 is formed by a vertical part 41 hanging down from the ring pipe 31, and an inclined part 43 that extends diagonally in communication with the vertical part 41 and is connected to a pipe head 42 serving as an air supply part. This inclined portion 43 is provided with a plurality of air ejection holes 44 for ejecting air downward.

This pipe head 42 is used because the three branch pipes 4 cannot be directly connected to the small-diameter air supply pipe 45. In this embodiment, the air supply pipe 45 penetrates inside the air jet pipe 24. Partition wall 46
The pipe head 42 and the air jetting pipe 24 are separated by a.

Further, the upper part of the pipe head 42 is formed into a roof shape, and an air jet hole 47 is bored in the needle part.

5 is a heat exchange chamber provided on the outer periphery of the combustion chamber 2;
Air sent from a fan 61 is circulated around the outer periphery of the combustion chamber 2 to loosen it, and the air is sent to a desired location through a warm air supply pipe 7.

Note that the fans 62 and 63 are connected to the air jet pipe 24, respectively.
Alternatively, it is for sending air to the air supply pipe 36.

Next, a method of using the combustion furnace configured in this way will be explained.

First, the lid 15 is opened and a predetermined number of used tires 11 are put into the fuel storage chamber 1.

At this time, the old tires 11 are piled up in contact with the spacer 36 on the upper surface of the ring vibrator 31 and the funnel-shaped slope of the bottom plate 14.

Next, after closing the lid 15, the fan 63 is operated to blow out air from the air blowing hole 33 of the ring pipe 31, and the kerosene in the oil tray 32 is ignited.

Since sufficient air is supplied to the surface of this kerosene, it ignites instantly, and a strong flame licks the old tire 11 at the bottom.

Here, since most of the air ejected from the air outlet 33 of the ring pipe 31 is consumed for burning the kerosene, the old tire in the lowest row becomes evaporated by heat and generates flammable gas. Initially, the debris itself crumbles and falls through the opening 13 of the bottom plate 14 into the upper combustion chamber 22.

At this time, large objects get caught on the pins 16 and do not fall into the upper combustion chamber 22 until they are further broken down.

Further, since the chimney 26 exits from the lower part of the lower combustion chamber 23, the flammable gas flows turbulently within the fuel storage chamber 1, and then flows into the upper combustion chamber 22 through the opening 13 of the bottom plate 14.

At this time, the air ejected downward from the air ejection holes 37, 44, 47, etc.
This makes the flow smooth.

Here, the air sent to the upper combustion chamber 22 by the operation of the fan 62 is also sent to the air jet hole 25 of the air jet pipe 24.
It's gushing out.

Therefore, the flammable gas obtains the necessary oxygen and burns, and the fragments of the old tire that are crushed and fall onto the Rosdol 21 are also burned, and at the same time, the flammable gas is released and the pieces of the old tire are broken into smaller pieces. from the hole into the lower combustion chamber 23.

This lower stage combustion chamber 23 is supplied with more air than the upper stage combustion chamber 22, and the remaining combustible gas and old tire fragments are completely combusted in the upper stage combustion chamber 23, and carbon dioxide and gas are released from the chimney 26. Almost colorless and transparent gas, mainly water vapor, is discharged, and white powdery ash remains at the bottom of the combustion furnace.

Here, if the combustion in the upper stage combustion chamber 22 becomes stable, it is no longer necessary to heat the old tire 11 in the combustion storage chamber 1 by burning kerosene.

Therefore, if sufficient kerosene is injected into the oil tray 32, there is no need to replenish it afterwards, and the old tires 11 are steam-burned in sequence starting from the bottom row, producing flammable gas. The particles break and fall into the upper combustion chamber 22, and combustion within the combustion furnace continues.

Here, the wire with a small diameter that was in the bead of the burned old tire 11 falls and accumulates on the inclined part 43 of the branch pipe 4, and the wire with a large diameter that was in the tread part is on the bottom plate 14. Since it falls and accumulates on the funnel-shaped slope, it does not cover the air outlet 33 of the ring pipe 31, and therefore the air supply is not obstructed, resulting in a decrease in combustion efficiency and the possibility of the fire going out midway. Never.

The combustion of this old tire 11 heats the outer periphery of the combustion chamber 2 to an extremely high temperature, and the air sent into the heat exchange chamber 5 by the fan 61 is warmed by this heat while flowing inside the heat exchange chamber 5, supplying warm air. It is sent out from the sending pipe 7.

This warm air is used for indoor hot air heating or for keeping warm greenhouses, etc.

Although the present invention has been described in detail according to the illustrated embodiments, the present invention is not limited thereto. For example, it may be possible to improve combustion efficiency and combine combustion chambers into one chamber,
There are various types, such as those in which the air supply pipe passes outside the air jet pipe, those in which the diameter of the tip of the air supply pipe is increased and the pipe head is omitted, and those in which the same fan is used to send air to the air supply pipe and the air jet pipe. Various variations are possible, and its use is not limited to hot air heating, but can also be used as a hot water supply facility by supplying water into a heat exchange room.

Furthermore, the reason why the chimney passes through the heat exchange chamber in Figure 1 is to effectively utilize the heat of the exhaust gas.

As explained in detail above, if the combustion furnace of the present invention is used,
Since the ring pipe ignites the kerosene whose liquid surface is exposed to the air flow, ignition is extremely quick and easy.
Furthermore, even if you burn old tires one after another as they are, the unburnt wires will not interfere with the air supply.
Not only can we provide a combustion furnace that is easy to use and safe, without reducing combustion efficiency or extinguishing the fire midway through, but
The combustion chamber burns the naturally crushed old tires and the combustible gas produced by evaporating them in the fuel storage chamber, starting from the bottom row. Since fresh air is supplied, complete combustion occurs and no harmful gases are emitted, making it possible to obtain a pollution-free combustion furnace.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is an enlarged plan view showing the main parts thereof, and FIG. 3 is a half sectional view thereof. 1... fuel storage chamber, 11... old tire, 12... storage chamber body, 13... opening, 14... bottom plate, 15... Lid body, 2.
... Combustion chamber, 21 ... Rosdol, 22.
...Upper stage combustion chamber, 23...Lower stage combustion chamber,
24...Air jet pipe, 25.33. 37
．． 44゜47... Air outlet, 26...
...Chimney, 3...Ignition device, 31...
Ring pipe, 32...Oil tray, 34.
...Barrier, 35...Notch, 36...
...Spacer, 4... Branch pipe, 41...
... Vertical part, 42 ... Pipe head, 43.
... Slanted part, 45 ... Air supply pipe,
46...Partition wall, 5...Heat exchange chamber, 61
, 62. 62...Fan, 7...Hot air supply pipe.

Claims (1)

[Scope of utility model registration request] a fuel storage chamber formed in a funnel shape and having a bottom plate with an open center;
a combustion chamber that is provided with an air jet pipe having a large number of air jet holes in the direction of its central axis, and receives and burns the fuel crushed or gasified in the fuel storage chamber through the bottom plate opening; and the fuel storage chamber. An ignition device is arranged near the opening of the bottom plate inside the room and has a ring pipe in which a number of air jet holes are drilled, and an oil tray is arranged in the vicinity of the ring pipe, and this ignition device is connected to an air supply section. ,
A combustion furnace comprising a vertical part hanging down from the ring pipe and a plurality of branch pipes each having an inclined part communicating with the vertical part.