JP3068337B2 - Waste oils and fats incinerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This invention relates to waste oils and fats such as waste oils, waste solvents and waste resins (hereinafter "waste oils" or "waste oils").
That. ), Which relates to an apparatus capable of incinerating waste oil remaining in cans such as drums and round cans.

[0002]

2. Description of the Related Art Waste oil incinerators are equipped with a burner that burns liquid waste oil by pumping it and spraying it from a nozzle. Waste oil in drums and round cans is once taken out into another large container. This is usually pumped to a burner and burned. However, when the waste oil in the can is solidified and loses fluidity, it cannot be taken out of the can, so put it separately into the furnace from the inlet of the incinerator and arrange it on the hearth, for example. The contents remaining in the can are burning.

[0003]

However, any method of taking out waste oils from the can or arranging the cans on the hearth and burning them is troublesome, and it is impossible to incinerate a large amount of waste oil efficiently. . Accordingly, an object of the present invention is to provide an incinerator that can more efficiently incinerate waste oil in drums and round cans.

[0004]

The apparatus according to the present invention includes a burner 10 similar to the conventional apparatus for burning liquid waste oils and fats, and further includes a drum can combustion apparatus for incinerating the contents of a large oil can A such as a drum. The apparatus includes a device 31 and a round can combustion device 25 for incinerating the contents of a small fat and oil can B such as a round can. The drum can combustion device 31 includes an inner door 3 that is alternately opened and closed.
A drum rest 36 is provided between the outer door 3 and the outer door 34 so as to be able to fall down into the furnace. The large oil can A is supported by the drum rest 36 and is incinerated in a state where it is turned inward. . Further, the round can combustion device 25 includes a round can input device 16 for charging a small oil can B into the furnace, and a round can discharge device 60 for discharging empty cans after the contents are burned out of the furnace. Then, the contents of the small fat can B are incinerated on the grate 11 of the furnace.

[0005] The round can combustion device 25 can be provided with a secondary pusher 52 that moves on the grate 11. The secondary pusher 52 operates after a lapse of a predetermined time after the operation of the round can insertion device 16 to remove the incinerated oil can B from the grate 11 and the round can discharging device 60.
Is provided at a position where the grease can B discharged by the secondary pusher 52 is discharged out of the furnace.

[0006]

The waste oil having high fluidity is sent from the waste oil tank 5 to the furnace by the pipe 6 and the pump 7, and is burned in a state of being sprayed into the furnace by the waste oil burner 10, as in the conventional apparatus. By controlling the combustion state in the waste oil burner 10, the temperature in the furnace is maintained at a temperature at which incineration of waste oils in the oil cans A and B can be efficiently performed.

[0007] Waste oils contained in a large oil and fat can A such as a drum can are opened on an outer door 34, placed on a drum can pedestal 36 with a forklift or the like. The high-temperature combustion gas in the inside is guided around the oil and fat can A, and the waste oil in the can is heated and fluidized, and further evaporated and incinerated. At this time, by incinerating the oil / fat can A in a state of being laid down by the laying device 44, fluid waste oils can be scattered in the furnace, and the incineration treatment can be performed more efficiently. After closing the inner door 33, open the outer door 34 and take out the large-sized oil / fat can A incinerated from the furnace with a forklift or the like.

A plurality of small oil cans B, such as round cans, are put into a furnace collectively by a round can input device 16, and the contents are fluidized in a high temperature atmosphere in the furnace and further evaporated to be incinerated. I do. Empty cans that have been incinerated can be removed from the round can discharge device 60.
Is discharged outside the furnace. By placing the small fat can B on the grate 11, the small fat can B can be widely distributed, and the heat transfer can be performed quickly. The secondary pusher 52 removes the grease cans B dispersed on the grate 11 from the grate 11 and collects them at one place, or disperses the grease cans B charged into the furnace more evenly on the grate. Can be used for

[0009]

FIG. 1 is a sectional view schematically showing an embodiment of the incinerator according to the present invention. The wall surface and the ceiling surface of the furnace 1 have a double structure, and a water jacket 2 is provided therebetween. Combustion air is supplied from a combustion fan 17 from the furnace wall side by an air pipe penetrating the water jacket. The cooling water in the water jacket 2 is circulated by a cooling water circulation device (not shown), and the generated hot water can be used as a heat source for a large-scale fish farm, a heating device, a greenhouse, a hot water pool, and the like. After passing through the waste gas temperature reduction chamber 4 having the water spray nozzle 3, the combustion gas is discharged to the atmosphere through a waste gas treatment device (not shown).

[0010] The furnace 1 is provided with a waste oil tank 5.
The oil in the waste oil tank 5 is guided to the upper part of the furnace by a pipe 6 and a pump 7, and is sprayed into the furnace from a nozzle 9 together with the combustion air supplied by a compressor 8, and burned.

A grate 11 of a water-cooled structure is provided at the lower part of the furnace. A round can inlet 13 having a round can inlet 12 is provided on the furnace wall connected to the upper surface of the grate. A round can input device 16 including a table lifter 14 and a round can input pusher 15 is arranged. As shown in FIG. 4, the can input port 13 and the can input device 16 are provided on the near side of the furnace 1, but for convenience of illustration, they are described on the side of the furnace 1 in FIG. is there.

The rear part of the grate 11 (the lower left part of the furnace in FIG. 1) is a round can dropping section 21. A round can discharge port 63 having a round can discharge door 62 is provided on the furnace wall connected to the drop section. And
On the opposite furnace wall, a can discharge device 60 having a can discharge pusher 64 is arranged. The can discharge port 63 and the can discharge device 60 are provided on the near side of the furnace 1 and on the opposite side thereof as shown in FIG. 4. It is described on the side.

On the floor of the furnace including the lower side of the grate 11, incineration ash remains after the contents dropped from the drums, round cans, etc. are burned, and this is the ash provided on a wall surface (not shown). It is taken out of the furnace from the outlet. Further, a drum can combustion device 31 shown in FIGS. 2 and 3 is provided on the furnace wall above the grate 11.

The drum can combustion device 31 is provided so as to protrude outward from the furnace wall 32, and has an inner door 33 which opens and closes up and down along the outer surface of the furnace wall 32. It has an outer door 34 provided to be able to open and close freely,
A drum can cradle 36 is provided around a support shaft 37 so as to be able to fall down inside the furnace in a drum can input chamber 35 between the inner door 33 and the outer door 34. The drum can support 36 is formed in an L-shape by a frame 38 for supporting the bottom of the drum A and a support frame 39 for supporting the drum in a falling state. To prevent
The stopper 40 is bent inward to be integrally formed. Each of the receiving stands 36 has a water-cooled pipe structure, and an air pipe 48 from a separately installed small compressor 47 is inserted into the water-cooled pipe as a double structure.
Air is ejected from the ejection port 49 provided in the stopper 40 to the drum can exit side.

The support shaft 37 includes a bearing 41 as shown in FIG.
41 and a reduction gear 42 and a chain drive 4
The drum can cradle 36 is driven to rotate by the hydraulic motor 44 via 3 to bring the drum can cradle 36 into an upright state shown by a solid line in FIG. In the illustrated device, the inner door 33 and the outer door 3
4 is opened and closed by chain blocks 45 and 46 which suspend it.

FIGS. 4 to 6 show a round can combustion apparatus provided with a secondary pusher. The round can inlet 13 is provided on the upstream side of the grate 11, which is slightly inclined toward the round can drop part 21.
The opening door 12 is opened and closed in the vertical direction. Immediately outside the charging door 12, a table lifter 14 is provided for lifting the circular can B to be charged to the height of the charging port 13, and pushes the circular can raised to the height of the charging port 13 onto the grate 11. Round can input pusher 15 is provided so as to be freely driven in the horizontal direction by a hydraulic cylinder (not shown) or the like.

A secondary pusher 52 is provided on the upper surface of the grate 11 on the opposite side of the round can drop part 21 so as to advance and retreat along the upper surface of the grate 11 with a rod 51 penetrating the furnace wall. The secondary pusher 52 may be driven by a hydraulic cylinder or the like, similarly to the round can input pusher 15. In the apparatus shown in the figure, a waste plastic inlet 53 is provided in the furnace wall above the secondary pusher 52, and the rod 5
Waste plastic carried in by a lifting device (not shown) separately on a table 54 provided immediately above 1 can be put onto the grate 11 from the plastic input port 53 by a waste plastic pusher 55.

On the wall surface of the round can dropper 21 opposite to the side where the round can inlet 13 is provided, there is provided a round can outlet 63 provided with a discharge door 62 which is opened and closed by an electric chain block 61 in the vertical direction. A round can discharge pusher 64 is provided opposite to the discharge port 63 and moves forward and backward in the same direction as the round can input pusher 15 by a hydraulic cylinder or the like. The above-described drum can combustion device 31 is provided in an upper portion of the furnace wall opposite to the wall surface on which the round can inlet 13 is provided.

Next, the operation of the drum can combustion device during incineration of the drum will be described. The drum A with the lid removed in advance is placed on a claw of a forklift, and lifted to the height of the entrance of the drum input chamber 35. The entrance of the drum can chamber 35 is normally opened by the outer door 34 being lifted by an electric chain block 46. Then, the forklift is moved forward to lower the drum A on the drum can cradle 36 of the drum can input chamber 35, and then the forklift is retracted. Next, the outer door 34 of the drum can input chamber 35 is connected to the electric chain block 46.
And close the inner door 33 with the electric chain block 45.
Lift and open. After that, the drum can cradle 36 is slowly moved down inside the furnace by the hydraulic motor 44, and the drum A
Discharge the contents of

The contents that have fallen into the furnace are incinerated on the floor inside the furnace. The contents remaining in the drum can A are heated to a high temperature by the combustion gas guided around the drum and the air spouted from the spout 49 of the drum can stopper 44, fluidized, dropped on the furnace floor, and incinerated. And drum A
Evaporated and incinerated. When the incineration is completed after a certain period of time, the drum can cradle 36 is returned to the original position by the hydraulic motor 44, the drum can A is erected, and the inner door 33 is hung by the electric chain block 45 and closed. Finally, the outer door 34 is lifted and opened by the electric chain block 46, and the empty drum A is taken out by a forklift.

Next, the operation of the round can combustion device when the round can is incinerated will be described. The round can B with the lid removed in advance is placed on the table lifter 14. The table lifter 14 is raised by a lifting device (not shown), and stops at the height of the round can inlet 13 of the furnace. Next, the loading door 12 of the round can insertion port 13 is lifted and opened by the electric chain block 24, and the round can loading pusher 15 is advanced so that the round can B on the table lifter 14 is opened.
Is pressed onto the grate 11 in the furnace. Thereafter, the round can input pusher 15 immediately retreats and returns to the original position.
Is closed. By repeating such an operation several times, a predetermined number of round cans B are placed on the grate 11.

Since the content of the charged canister B is incinerated on the grate 11, the secondary pusher 52 is advanced after a predetermined time has elapsed, and the canister B on the grate 11 is removed from the canister behind the grate 11. It is dropped on the drop unit 21. The incinerated round can B that has fallen into the round can dropper 21 is lifted with the electric discharge door 62 of the furnace with the electric chain block 61 and opened, and then the circular can discharge pusher 64 is opened.
Is advanced and discharged from the round can discharge port 63 to the outside of the furnace.

The above-described incineration of the drum A and the round can B can of course be performed in parallel. In the above description, the oil and fat can was represented by a drum and a round can.However, the invention is not limited to this. It is incinerated in the same way.

[0024]

According to the apparatus of the present invention described above,
Efficient incineration of waste oil, waste solvent, waste resin, etc. in drums and round cans while keeping them in containers, and automatic loading and discharging of waste oil containers into the furnace As a result, waste oils can be incinerated efficiently and require less labor.

[Brief description of the drawings]

FIG. 1 is a sectional view schematically showing one embodiment of an incinerator according to the present invention.

FIG. 2 is a sectional side view of a drum combustion device.

FIG. 3 is a front view of the drum can combustion device with the outer door opened.

FIG. 4 is a cross-sectional plan view of a drum can and a round can combustion device.

FIG. 5 is a sectional side view of a round can combustion device.

FIG. 6 is a sectional side view showing a secondary pusher.

[Explanation of symbols]

 10 Burner 11 Grate 16 Cylinder charging device 17 Combustion fan 25 Cylinder combustion device 31 Drum can combustion device 33 Inner door 34 Outer door 36 Drum can receiver 44 Hydraulic motor 52 Secondary pusher 60 Cylinder discharge device A Drum can B

Claims (3)

(57) [Claims] 1. A waste oil and fat incinerator provided with a burner (10) for burning liquid waste oil and fat, comprising: a drum can combustion device (31) for incinerating the contents of a large oil and fat can (A); And a round can combustion device (25) for incinerating the contents of the oil and fat can (B).
The drum can combustion device (31) includes a drum can pedestal (36) provided between an inner door (33) and an outer door (34) that are alternately opened and closed. (36) Support inside door (33)
It is configured to burn the contents with the container opened, and the round can combustion device (25) is composed of a round can input device (16) for charging a small oil can (B) into the furnace, An incinerator for waste oils and fats, comprising: a canister discharging device (60) for discharging empty cans after being burned out of the furnace. The drum can pedestal (36) is provided with a lodging device (44), and a large oil can (A) placed upright on the drum can pedestal (36) is moved to the inner door (33). 2. The incinerator for waste oils and fats according to claim 1, wherein the contents are burned in a state where the contents are opened and fall down toward the inside of the furnace. 3. The round can combustion device (25) includes a grate (11) and a secondary pusher (52) moving on the grate (11), and the round can input device (16) includes a grate ( 11) A small oil can (B) is placed on the top of the tank, and the secondary pusher (52)
6) After a predetermined time has passed since the operation, the grate
(11) The grease can (B) is removed from above, and the round can discharge device (60) is provided at a position for discharging the grease can (B) removed by the secondary pusher (52) to the outside of the furnace. An incinerator for waste fats and oils according to claim 1 or 2.