US2939409A - Incinerator apparatus - Google Patents

Description

June 7, 1960 B. F. SHAUGHNESSY 2,939,409

INCINERATOR APPARATUS Original Filed March 15, 1957 4 Sheets-Sheet 1 INVENTOR. BER/[4120 E SHHUGHA/Esf BYWM B. F. SHAUGHNESSY 2,939,409

INCINERATOR APPARATUS Original Filed March 15. 1957 Jung 7, 1960 4 Sheets-Sheet 2 INVENTOR.

BERNARD F, .SMQUGWNESS Y.

June 7, 1960 a. F. GHAUGHNESSY 2,939,409

INCINERATOR APPARATUS 4 Sheets-Sheet 3 Original Filed March 15, 1957 INVENTOR. 552M920 E \SHHUGHA/E-SS 7,

June 7', 1960 B. F. SHAUGHNESSY 2,939,409

INCINERATORAPPARATUS Original Filed March 15.- 1957 4 Sheets-Sheet 4 IN VENTOR. 5RNARO F. JHHUGHNE'SS).

I HTTOEJJAY' United States Patent Original application Mar. 15, 1957, Ser. No. 646,260. Diviilsil and this application Sept. 29, 1958, Ser. No. 764,

2 Claims. (Cl. 110-13 My invention relates to incinerator apparatus and more particularly to those of the type employed in burning rubbish and other waste materials, the present application being a division of my application Ser. No.' 646,260, filed March 15, 1957.

One object of the present invention is to provide incinerator apparatus whereby the material to be consumed is fed into a combustion chamber in an improved manner."

Another object of my invention is to provide means for spreading the material in the incinerator chamber in an eifective manner to facilitate distribution and combustion thereof.

Still another object of my invention is to provide for the introduction of auxiliary air at strategic areas in the incinerator chamber, in addition to that air which enters through the grate.

As shown in the accompanying drawings:

Figure l is a vertical sectional view through an incinerator apparatus.

Fig. 2 is a view showing a modified arrangement of the apparatus.

Fig. 3 is a vertical sectional view through a modification of the structure shown in Fig. l.

Fig. 4 is a plan view of the grid for supporting the grate of Fig. 1.

Fig. 5 is a sectional plan view of a portion of the apparatus of Fig. 3.

Fig. 6 is an enlarged sectional view taken on the line Vl-VI of Fig. 5.

Referring first to Fig. 1 which shows a vertical sectional view through a combustion chamber 10 and an incinerator chamber 11, there may be a series of these in alignment connected by an expansion chamber 12 through which air may be supplied to a row of the incinerators, and which will serve as an access tunnel to the chambers 10 and 11. These chambers are shown as contained within a concrete building 13. Air for combustion is supplied from below the grate and through a pipe 14 and a perforated sphere 15, which serves also as a valve. Doors 16 are provided in the sidewall of the chamber 11 through which scrapers may be introduced to scrape ashes from a rotatably supported grate 24, and upon a grid 17, to slide down a chute 18. The sphere serves also as a means for spreading the rubbish at is falls into the chamber 11. Ashes at the center of the chamber 11 will fall through a pipe 19 into a car 23.

Figure 2 is a vertical sectional view, showing the rotating grate 24 and one form of driving mechanism therefor. The framework or housing contains a pit room 20 and an ash receiving space 21 closed by a door 22 (Fig. 1) and into which the ash-receiving car 23 can be moved to receive ashes from the grate 24. The grate bars are supported on rings 25 and 26, that are in turn supported by grid members 27 that are shown in plan in Fig. 4. A central refractoiy block 28 is also carried by the grid members 27.

The grate structure is rotatable and has secured to the underside of the frame members 27 a circular rack 30 2,939,409 w Patented June 7, .1960

that is driven by a pinion 31. v The grid 27 and the grate carried thereby, are supported by rollers 32 which are rotatable on shafts 33 (Fig. 2) that are adjustably clamped in the rigid frame work of the machine by. U-bolts 34. I

The rollers 32 are flanged to hold the rotating table against displacement, and thrust bearings 35 are provided between the rollers and the inner ends of their. shafts 33. An annular sealing ring 36 is positioned on the grate 24to prevent ashes and rubbish from falling down past'the outer edge of therotating table. The table of Fig. 2 is rotated by an. electric motor 38, operating through a transmission mechanism at 3 9, that includes a pinion 40, a sprocket chain 41, a sprocket wheel 42, a shaft 43 and the pinion 31; g h Referring now to Fig. 3, I show a modification of the furriacearrangement of Fig.1. In this case, I show a rotatably mounted receiving and sorting table 44 upon which the rubbish is dumped for storage and sortingfrom trucks. The table is rotated intermittently by gearing at 45 from a suitable source of power. At this table, scrap metal and other incombustible material will be removed and the rubbish then dumped into the charging opening of the incinerator chamber 46, the valve 15 being in lowered position at this time and serving to spread the material in the chamber as well, as to supply air for combustion, as heretofore explained. A pivotally supported shield plate 47 protects the waste on the pan from flames, when the valve 15 is open. The incinerator chamber 46 communicates with a combustion chamber 48 and past a damper 49, thence to an expansion and exhaust chamber 50 that is connected to a stack. The rubbish is dumped into the chamber 46 and is spread by the ball-like valve 15, and the products of combustion pass through a flue 53 to the header or expansion chamber 50.

The damper 49 is used to regulate the velocity of the gases and also may be used to control flow where more than one unit is employed. When a damper 54 is open, heated gases will be directed into the lower end of the incinerator chamber, through an air duct 55, from a blower.

'Ihe grate in the chamber 46 will be rotated as in the case of the structure Fig. 1. In this modified form bricks 57 (Fig. 5) of circular form are arranged in a sort of checker work pattern to provide for the access of air through the crevices between the bricks and through the wall of the chamber 46 at its hottest area and the wall of the throat or conduit 58 from a blower 59, to prevent overheating and fusing of the bricks, and to get better combustion of the gases.

In Fig. 5, I show a plow-supporting pipe 60 that is rotatably and slidab'ly supported in bearings 61a on a carriage 61 which carries a pinion 62 and rollers 63 that run on rods 64. The pinion 62 having a handwheel 65, meshes with a fixedly-mounted rack 66 so that when the handwheel is turned the carriage will be shifted longitudinally to move the pipe 60 toward the mass of material dumped into the incinerator chamber (Fig. 2). An air supply pipe 68 connects with the pipe 60' that leads into a perforated plow head 69 that is rigidly secured thereto and which has a reduced end (Fig. 5) which telescopes into the pipe 60' so as to permit shifting of the plow longitudinally, when the handwheel is turned to move the carriage toward the furnace chamber.

. By reason of the fact that the plow together with the pipe 60 is rotatable or oscillatable about its longitudinal axis, and is mainly oifset to one side of said axis it is not so likely to become damaged by materials on the rotating grate since heavy obstructions encountering the plow will tend to rotate it or swing it about its axis and will glide 01f the sloping face of the plow member 69 (Figs. 2 and 3). i 1

into the incinerator near its lower end to catch empty cans, that tend to gravitate down the sides of the pile of material that is dumped into the chamber, and deflects such cans" onto agrate- 71 from which they will be removed through an opening in the side wall of the chamber.

'1 claim; as my invention:

1. Anincinerator that comprises a chamber for receiving charges of combustible material through an opening at its upper end, a grate in the lower portion of the chamber in position to receive the material, means for rotating the grate about a'vertical axis, a horizontal pipe that extends into the chamber and has a hollow, perforated spreader plow rigidly secured to its inner end, at a substantial distance above the grate and in position to be engaged by masses of charged material during rotation of the grate, means for supporting the pipe and the plow for idlingly oscillatory movement about the axis of the pipe, the center of gravity of the plow being norinally below the axis of the pipe, and the normally upper surface of the plow sloping downwardly toward the center of the grate, whereby engagement of material against the plow will tilt it about said axis, and means for directing air for combustion through the pipe and through the perforations of the plow.

2. Apparatus as recited in claim 1, wherein hook means extends inwardly from the chamber wall at a plane below the plow, in position to engage cans and the like that are deflected'by the plow from the material, and to direct them to a discharge opening at the side of the chamber.

References Cited in the file of this patent v UNITED STATES PATENTS

Images