JPH09229328A - Smoke circulation type combustion furnace - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform a complete combustion without discharging smoke to the outside by a method wherein one end of a circulating current pipe being connected to a smoke- discharging cylinder, is opened at an outside air inlet, and the other end is extended and introduced to a space between a grate of a combustion chamber, and a water tray in a refractory housing, by inserting a motor fan. SOLUTION: Smoke which generates accompanying the combustion of waste, is introduced again, together with soot, to a space between a grate 2 of a combustion chamber 2 and a water tray 10 in a refractory housing 8, from a smoke discharging port 3 and a smoke discharging cylinder 12 through a circulating current pipe 13 on the outside. In this space 16, the soot portion is mixed with steam which generates from hot water in the water tray 10, and falls in the water tray 10. Then, one part is fed into the combustion chamber 2 again by the grate 6, together with the outside air, and the other rises in the refractory housing 8 by a convection phenomenon in the path, a forcible circulation action by a motor fan 15, and a rising air current which is caused by a hot water evaporation action of the water tray 10. Then, the ascended part is joined with the smoke of the combustion chamber 2 by a communication port 12a, and introduced to the smoke discharging cylinder 12 while doing so, and is discharged to the circulating current pipe 13 again.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a general waste incinerator, and more particularly to a smokeless smoke circulation type combustion furnace which can be used without pollution in a business office or a general household in a dense area.

[0002]

2. Description of the Related Art Up to now, various types of incinerators for general waste have been proposed and implemented. However, secondary pollution caused by smoke emission becomes a bottleneck, and it is used in business offices and households in dense areas. There was a problem to do.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional circumstances, and is a pollution-free smoke circulation type combustion furnace for completely burning general waste without smoke emission to the outside. The purpose is to provide.

[0004]

In order to achieve the above object, the present invention is directed to the outside of a combustion chamber 2 having a smoke exhaust port 3 on the upper side, a charging port 4 with a door 5 on the side and a grate 6 on the lower side. A fireproof housing 8 is provided surrounding the. Then, an outer door 9 is provided on a side portion of the refractory housing 8 corresponding to the insertion port 4 with the door 5, and a drawer-type water tray 10 is provided on the bottom portion at a distance from the roster 6. Furthermore, the smoke exhaust port 3 of the combustion chamber 2 is connected to a smoke exhaust tube 12 having a communication port 12a with the fireproof housing 8 and led out to the outside of the fireproof housing 8, and the smoke exhaust tube 12 is connected in a tease type. One end of the recirculation pipe 13 is extended to the outside air intake 14, the other end is extended and a motor fan 15 is interposed in the middle so that the combustion chamber 2 in the refractory housing 8 is again provided.
The smoke circulation type combustion furnace 1 is constructed by introducing the smoke circulation type combustion furnace 1 into the space 16 between the roster 6 and the water tray 10.

[0005]

In order to use the smoke circulation type combustion furnace 1 of the present invention, a. The water tray 10 is filled with water, and the outer door 9 of the fireproof housing 8
Then, the door 5 of the combustion chamber 2 is opened, and the waste to be burned is put into the roster 6 through the charging port 4, and after ignition, the outer door 9 and the door 5
Close. B. The motor fan 15 of the recirculation pipe 13 is started to create a smoke convection circulation path around the combustion chamber 2 while taking in the outside air from the outside air intake port 14, and the ashes associated with the combustion are discharged from the roster 6 to the water tray 10 Drop into and settle. C. Smoke generated by waste combustion is again inside the refractory housing 8 through the convection circulation path of the smoke together with the soot, that is, the smoke exhaust port 3 and the smoke exhaust pipe 12 and the return pipe 13 outside. Is introduced into the space 16 between the rostrut 6 and the water tray 10 in the combustion chamber 2. Then, in this space 16, soot is mixed with steam generated from hot water in the water tray 10 and dropped into the water tray 10, while part of the soot is sent to the combustion chamber 2 again from the rostrut 6 together with the outside air, and the others are in the above-mentioned path. Due to the convection phenomenon in FIG. 3, the forced circulation action by the motor fan 15 and the ascending airflow caused by the hot water evaporation action of the water tray 10, the inside of the refractory housing 8 rises and communicates with the smoke exhaust pipe 12 of the combustion chamber 2. From the communication port 12a, it is led to the smoke exhaust 12 while joining with the smoke of the combustion chamber 2, and is exhausted to the recirculation pipe 13 again. D. Thereafter, during combustion operation, the smoke is repeatedly purified by convection and is not discharged to the outside. That is, the problem of secondary pollution is solved. However, it should be noted that if the motor fan 15 is unnecessarily decelerated during combustion, smoke will be discharged backward from the outside air intake 14, although it is being purified.

[0006]

As described above, according to the present invention, the smoke generated during the combustion of general waste is partly reburned and the other part is forcedly circulated through the convection circulation path formed outside the combustion chamber to the outside. It was possible to provide a pollution-free smoke circulation type combustion furnace which can be completely burned without smoke emission.

[0007]

Example: A smoke exhaust port 3 is provided on the upper side, and an inlet port 4 with a door 5 is provided on the side.
A stone-made fireproof housing 8 is provided by surrounding the outside of the combustion chamber 2 having a rostrut 6 at the lower part, and an outer door 9 is provided at a side portion of the fireproof housing 8 corresponding to the inlet 5 with the door 5. The bottom of the fireproof housing 8 is provided with a drawer type water tray 10 at a distance from the grate 6, and a smoke exhaust tube 3 having a communication port 12a with the fireproof housing 8 is connected to the smoke exhaust port 3 of the combustion chamber 2. To get to. And this smoke stack 1
The end of the recirculation pipe 13 connected in the shape of 2 to the outside air intake 14, the other end is extended and the motor fan 15 is interposed in the middle, and again the loss of the combustion chamber 2 in the refractory housing 8 is lost. 6 is introduced into the space 16 between the water tray 10 and the water tray 10, and a pipe 17 for boiling residual heat is installed around the outer peripheral surface of the combustion chamber 2.
Reference numeral 18 is a sensor for detecting the flow of smoke.

[Brief description of drawings]

FIG. 1 is a perspective perspective view.

FIG. 2 is a longitudinal sectional side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Smoke circulation type combustion furnace 2 Combustion chamber 3 Smoke exhaust port 4 Input port 5 Door 6 Lostru 8 Fireproof housing 9 Outer door 10 Draw-out water tray 12 Smoke stack 12a Communication port 13 Reflux pipe 14 Outside air intake 15 Motor fan 16 spaces

Claims (1)

[Claims] 1. A smoke outlet (3) on the top and a door (5) on the side.
A fireproof housing (8) is provided by surrounding the outside of a combustion chamber (2) having a roster (6) at the bottom with a fired entrance (4), and the door 5 with the door 5 is provided on the side of the fireproof housing (8). An outer door (9) is provided at a portion corresponding to the mouth (4), and a drawer-type water tray (10) is provided at a bottom portion at a distance from the roster (6), and a smoke exhaust port (3) of the combustion chamber (2) is provided. ) Is connected to a smoke exhaust tube (12) having a communication port (12a) with the fire resistant housing (8) to be led out to the outside of the fire resistant housing (8), and a recirculation connected to the smoke exhaust tube (12) in a tease type One end of the pipe (13) is opened to the outside air intake (14), the other end is extended and a motor fan (15) is interposed in the middle to again open the combustion chamber (2) in the fireproof housing (8). A smoke circulation type combustion furnace which is introduced into the space (16) between the roster (6) and the water tray (10).