JPS5849821A - Waste incinerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for incinerating waste materials such as general waste, kitchen waste, sludge, garbage, etc.

In previously known devices for incinerating waste, the material to be incinerated is generally placed on a grate. The grate has a downward facing Oli opening through which combustion air can reach the combustion material. This grate usually has a stationary part and a moving part. - The combustion material is moved along the grate from the charging point to the discharge point by a slight reciprocating motion.

Incinerators, such as the incinerator, have gaps in the relatively moving parts that allow the moving grate to fall through the burning material, and the incinerator is subject to considerable mechanical and thermal stress and is susceptible to wear. Since the substance delivery mechanism must be provided inside the combustion chamber, it has disadvantages such as being subjected to large thermal stress.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an incinerator for the combustion of solid wastes and wastes such as sludge in a pasty or mushy material that may fall between the holes of the grate.

In summary, the present invention includes a feeding table consisting of a plurality of hollow stages, and a device for supplying combustion air at a transition portion from one stage to the next, with the upper side of the stage being closed, 1
The III junctions overlap to prevent waste or debris from falling between the stages, and the end faces of the stages form a stage live with openings for supplying air to maintain the combustion. The present invention provides a waste incineration device.

Overlapping toes on the upper surface behind the live surface extend diagonally upward and away to prevent combustion material from flowing back through the grate.

Hereinafter, the present invention will be described in detail with reference to the drawings.

The embodiment of the apparatus for sound incineration of kitchen waste, general waste, and sludge cape waste shown in FIGS. 1 to 3 can be installed in a waste incinerator where a multipurpose incinerator can be installed. However, this type of waste incinerator can also be used to incinerate plastics or incinerate animal carcasses. The incinerator shown in FIGS. 1 to 3 has a feeding table having a plurality of steps. Each carriage drops single pieces into a forming stage, and during incineration, the waste falls onto the stage and down. Air necessary for combustion is formed between the steps and is supplied through the opening.

FIG. 2 shows an example of a stepped structure particularly suitable for implementing the present invention. Combustion devices using this type of stepped structure for incinerating waste can be used to incinerate a wide variety of solid, granular, pasty or liquid wastes. These wastes include domestic and industrial waste, sediments or sludge, and other materials that contain combustible materials or can be mixed with combustible materials.

The plate portion 22 shown in FIG. 2 is slightly inclined with respect to the horizontal plane so that the plate portion 22 becomes lower toward the direction in which the material to be incinerated is delivered. This plate portion 22 constitutes a feeding platform for the incinerated material, and forms a closed column extending across the feeding platform support plate 25 inclined in the longitudinal direction.

Therefore, the incinerated material on the feed table will not fall even if it is in a liquid state. Plate part 22 next stage (upper stage)
An extension part 23 extends rearward under the front edge 2s of the riser 30, and an extension part 23 extends diagonally upward behind the next stage live 30, and an extension part 24 descends. These extensions 23, 24 form a cut-out structure and prevent the combustion products from flowing back through the combustion air supply nozzle, which will be described below. The two long gable portions 23 and 24ti are combined at an angle α. This angle head can have angles between about 70 degrees and about 110 degrees, with 90 degrees being preferred. A holding member 26 extending obliquely upward is provided at a portion of the front end of the plate portion 22 that is connected to the live 30 extending downward. The cylindrical holding member 26 has a slit-shaped opening 21. The opening 27 forms a passage for combustion air together with a nozzle 28, which will be described later. The height of this holding member decreases in the forward direction indicated by arrow B. A small ball 31 can be installed at the tip of the holding member 26. This tip is 1 and the other is 2.
The tops 40 of the roof-like extensions 23, 24 at the other ends of the two are also lower by a height h. This height difference is sufficient to prevent hFi waste from entering the air supply passageway described below.

As shown in FIG. 3, the riser 30 extends diagonally downward from the connecting part with the plate part 22, and at its lower end, the plate part 22 of the next stage (lower stage) and the red 1 have a front edge part 2B that is parallel to the riser 30.

Therefore, a tapered flat nozzle 28 for supplying combustion air is formed between the front edge 29 of one stage and the plate 22 of the next stage (lower stage). This air supply nozzle has an opening of $27
Since it forms a vertical opening that extends horizontally, unlike when the supply port is provided on a horizontal plane, there is no possibility that waste during incineration will flow out from the supply port, and there will be no dust that would clog the supply port. . The angle β between the plate portion 22 and the holding member 26 is approximately 120 degrees, and the angle β between the plate portion 22 and the live surface 3 is approximately 120 degrees.
The angle r with respect to 0 is approximately 230 degrees, for example.

During the incineration of waste, the structure 3 of the stepped plate portion 22
Since the grate consisting of (FIG. 1) is constantly vibrated, the combustion waste to be incinerated is slowly moved in the direction of arrow B towards the ash outlet E. The amplitude and direction of the vibrations can be varied, or the vibrations can be intermittent rather than continuous, to control the rate of waste delivery according to combustibility or other properties of the waste to be incinerated.

The elements 23, 24, 29, 30 forming the stepped structure, like the plate part 22, have closed surfaces and are fixed to the wall 36 by means of welding or bolting capes. These members 22, 23, 24, 21t, and SO are preferably made of heat-resistant plate material as one body, and the holding member 26 is attached to the integral structure.
It is recommended to weld.

FIG. 3 is a partial sectional view showing the step structure shown in FIG. 2, and this figure shows the shape of the ring 27.

Figure 1 shows the device for moving the grate. The material to be incinerated in the incineration scissors holder passes over this grate from the feed port F to the discharge port E.
Move until. Ash is discharged from the discharge port E. Between 10 and 30 stages are provided to support the fluidized combustion products;
Preferably, there are about 20 to 25 steps per length of about 64 to 76 scars (about 25 to 30 inches). As shown in FIG. 1, the vibrating frame 32 is supported on a spring support 34. As shown in FIG. The spring support stand 34 is supported on the fixed stand 33. Vibration frame 32ti 13 for horizontal plane
It has support rails 35 that are sloped by ~17 degrees. This angle of inclination should preferably be about 15 degrees.

Two side walls 36 and a feed base support plate 25 (FIG. 2).

This support plate 25 (which is also inclined at approximately 15 degrees) is fixed to the support rail 35. These side walls 36 are arranged so that as they move downward, the distance between them becomes somewhat narrower. In other words, II! The distance between the I walls is also somewhat wider than the distance between the side walls at the outlet E. A vibration exciter 38 that vibrates the vibration frame 32 and the stepped structure fixed to the support rail 35 and the side wall 36 is provided in the middle of the spring support 34 . According to such a grate drive device, the grate is vibrated as a whole and there is no relative movement between the stages, so that the waste is incinerated without moving down from the grate. will be moved to This simplifies the main movement mechanism and reduces loss due to friction between the feeder and the incinerated material. Additionally, the side walls 36 prevent waste (especially fluidized waste) from flowing out of the grate.

Note that the stepped portion may be configured such that the plate portion 22 has a slightly tapered shape. Thereby, the holding member 26 extending obliquely upward forms a slightly curved front part.

Instead of the roof-like extensions 23, 24, it is also possible to have only an extension extending obliquely upward.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of a stepped grate structure including a vibrator for incinerating waste, and FIG. 2 is a longitudinal cross-sectional view of a waste incinerator showing details of the structure of the stepped structure. Figure 3 is the second
FIG. 3 is a front view of the apparatus shown in FIG. 2, partially shown in cross section, as viewed from the direction of arrow A in the figure; 22... play) L23.24... rear extension part, 26... fist holding member, 27... slit, 28
...Q air supply nozzle, 2B... own edge, 30.
... riser, 36 ... side wall, 38 ... vibration exciter 〇 Patent Ganjin Conrad Zig agent Masaki Yamakawa (and 1 other person)

Claims (1)

[Claims] a feed table support plate tilted in the longitudinal direction; a vibrator for vibrating the grain support plate; and a plurality of vibrators mounted across the support plate at fixed positions on the support plate so as to present a waste support surface. means for introducing combustion air into the gap between the support plate and the step formation; and means mounted at a fixed position on the support plate to support the step formation. and a side wall extending above the surface to prevent the waste from exiting from the side, the stepped portion being formed by overlapping plates made of refractory material, the plates having a length thereof The glue is arranged so that its sides cross the longitudinal direction of the support plate, and #1 is bent along a plurality of lines parallel to the long side of the carcass, and the step forming part is formed on the support plate. The opening is continuous except for the opening inside, and has a rear extension extending diagonally upward under the adjacent upper grate O in order to prevent the waste from flowing into the gap. 9. The combustion air passes through the riser opening to burn the waste into a waste incinerator.