US3742875A

US3742875A - Charging door for incinerator unit

Info

Publication number: US3742875A
Application number: US00170182A
Authority: US
Inventors: R Eberle
Original assignee: Stainless Inc
Current assignee: Stainless Inc; Zinklahoma Inc
Priority date: 1971-08-09
Filing date: 1971-08-09
Publication date: 1973-07-03
Anticipated expiration: 1990-07-03

Abstract

An incinerator charging door which includes both a closure and a compartment for receiving the material to be incinerated. The compartment and the closure are mounted in side-by-side relation so that they can be selectively aligned with an opening to the incinerator and either one or the other is interposed between a user and the incinerator.

Description

1 United States Patent 1191 Inventor: Richard J. Eberle, North Wales, Pa.

Assignee: Stainless, Inc., North Wales, Pa.

Filed: Aug. 9, 1971 Appl. No.: 170,182

References Cited UNITED STATES PATENTS 10/1929 Heybeck 193/34 Eberle 1 July 3, 1973 [54] CHARGING DOOR FOR INCINERATOR 1,632,536 6/1927 Breen 193/34 UNIT 1,287,711 12 191s Lichtenberg 214/35 R Primary Examiner-Kenneth W. Sprague Attorney-Arthur J. Seidel et al.

ABSTRACT 10 Claims, 4 Drawing Figures PAIENIHJJuLs 191s sum 1 or 2 INVENTOR RICHARD J. EBERLE' A TTOR/VEYS CHARGING DOOR FOR INCINERATOR UNIT This invention relates to incinerators and more particularly to charging doors for incinerators.

When inexperienced or untrained persons use incinerators, there is a likelihood that they will be injured. Such injury can result from the depositing of flammable materials into the incinerator. Thus, if particulate material such as flour, aerosol cans or the like are deposited into the incinerator they are likely to cause flash explosions in the incinerator chute or explode in the incinerator hurling shrapnel through the incinerator chute.

Hence, if the door to the incinerator chute is not closed prior to the ignition or explosion of these materials, it is likely that injury could result to the person who deposited them in the incinerator.

Hence, it is an object of this invention to provide a novel and unobvious incinerator charging door.

It is a further object of this invention to provide a charging door for an incinerator which eliminates the likelihood of injury resulting from explosions in the incinerator and the incinerator chute.

It is still another object of this invention to provide a charging door for an incinerator having a closure and a material receiving compartment adjacent thereto so that either the compartment or the closure can be selectively aligned with the opening to the incinerator chute so that a portion of the charging door is always interposed between a user and the incinerator chute.

Other objects and advantages of the subject invention will be apparent from a detailed description thereof which follows.

Generally, the invention relates to a charging door for a container which has an opening. The charging door comprises closure means for closing the opening and a bottomless compartment adjacent the closure. The closure is mounted for movement between open and normally closed positions. Movement of the closure to its open position is operative to align the bottomless compartment with the opening in the container so that material therein can enter the container.

Reference is made to the drawings where a presently preferred form of the invention is illustrated.

FIG. 1 is a side elevational view of an incinerator utilizing a charging door constructed in accordance with a presently preferred form of the invention.

FIG. 2 is a plan view of the incinerator illustrated in FIG. 1.

FIG. 3 is an enlarged sectional view of a portion of the incinerator illustrated in FIG. 3.

FIG. 4 is a view similar to FIG. 3 however, showing the closure in its open position.

Referring now to the drawing for a detailed description of the invention, a container such as incinerator is mounted'by means of base 12 on suitable flooring. The incinerator has a lower doorway 14 and a stack 16. A burning zone 18 is connected by a side access 20 with a lower chute 22. The lower chute may be connected to an upper chute 24. The lower and

upper chutes

22 and 24 may be interconnected by bolts which join opposed facing flanges thereon. The upper and lower chutes define a passage which slopes upwardly and outwardly away from the burning zone 18 of the incinerator.

A charging door 26 is disposed at the top of the upper chute 24. The charging door is pivotally mounted on pillow blocks 27 for rotation about a horizontal axis.

The pillow blocks 27 are supported by the side walls 28 of the upper chute.

As best seen in FIG. 3, the upper and lower chutes have metal skins 30 which are lined with suitable insulating material 31 and firebrick 32.

The upper chute includes a first wall 34 and a second wall 36 which define an upwardly facing opening 38 into the upper chute. The first wall is positioned generally below the pillow blocks 27.

A compartment bottom 42 of arcuate configuration is supported on the outside of first wall 34. It has a downwardly directed lip 44 which functions as a sealing member in a manner to be described.

In a like manner, inverted angle 46 forms a sealing member on second wall 36.

The charging door comprises a bottomless compartment 52 adjacent a closure 54. The bottomless compartment includes a door 56 which is mounted so that it can close doorway 58.

Closure 54 comprises a front wall 62 and a rear wall 64 defining a sector of a circle. The closure includes an arcuate liner 66 comprised of firebrick. The front wall has a gasket 68 which is adapted to cooperate with downwardly directed lip 44 while the rear wall has a gasket 70 adapted to cooperate with inverted angle 46.

The bottomless compartment is comprised of a plu-' rality of side walls 74. One of the side walls is defined by the aforementioned front wall 62.

Another side wall 74 includes doorway 58 permitting access to the compartment. The door 56 which is lined with a gasket to cause a seal around the doorway is mounted for pivotal movement between open and closed positions about an axis 82 which is parallel to the axis defined by aforementioned pillow blocks 27. The door includes a handle 84.

A blade 86 is mounted transversely of the path of movement of the charging door. on the interior of the side wall below the doorway.

The operation of the incinerator charging door can best be understood by referring to FIGS. 3 and 4. Normally, the charging door is in the position illustrated in FIG. 3 where closure 54 overlies opening 38.

Gaskets

68 and 70 are in abutment with lip 44 and angle 46 so that opening 38 is sealed. This is because the firebrick 66 tends to pivot the closure beneath the pillow blocks 27. Thus, it yieldingly urges the closure into close contact with the seals. The door 56 is opened and material to be incinerated 88 is loaded in the bottomless compartment 52. It rests on arcuate compartment bottom As seen in FIG. 3, there is no communication between the bottomless compartment and the opening 38 in the chute.

The door 56 is then closed and with the same motion, the charging door is pivoted about pillow blocks 27 to the position illustrated in FIG. 4. The closure yields to permit this pivoting.

In FIG. 4, the closure 54 has been displaced and the bottomless compartment 52 is in alignment with opening 38, permitting the material 88 to fall into the upper chute 24 whereby it enters the burning zone 18 of the incinerator. Blade 86 is operative to engage the material and push it along the arcuate compartment bottom 42 and into opening 38. Because the blade slopes upwardly and away from the arcuate compartment bottom 42 it tends to prevent the material 88 from being jammed between the bottomless compartment 52 and the compartment bottom 42.

It should be noted that the door 56 is closed when the charging door is displaced. Thus, gasket 80 is operative to form a tight seal between door 56 and doorway 58.

After handle 84 is released, the weight of the firebrick 66 in the closure causes the charging door to pivot about pillow blocks 27 into the position illustrated in FIG. 3 and

urge gaskets

68 and 70 against

sealing elements

44 and 46.

What has been described is a simple and efficient charging door for an incinerator or any other container. The charging door is operative to normally close the opening to the incinerator. It can only be displaced from its closed position when positive force is applied to the bottomless compartment. However, when force is applied to the bottomless compartment, the door permitting access to that compartment is sealed. Further, when the force is released from the door, the bottomless compartment rotates to a position where it can be reloaded and the closure covers the opening to the incinerator. Thus a portion of the charging door is always interposed between the user and the incinerator to prevent fires and explosions in the incinerator or incinerator chute from injuring the user.

While the invention has been described with reference to one particular embodiment thereof it is apparent that many other forms and embodiments would be obvious to those skilled in the art in view of the foregoing description. Thus, the scope of the invention should not be limited by the foregoing specification and drawing but rather, only by the scope of the claims appended hereto.

1 claim:

1. A charging door for a container having an opening comprising, a closure for said opening, said closure being mounted for movement between positions which open and close said opening, a bottomless compartment defined by a plurality of side walls, said compartment being coupled to said closure for movement therewith, means coupled to said container, said last named means being located outside of said opening and defining a bottom for said compartment when said closure is in said position which closes said opening, means for yieldingly retaining said closure in said position which closes said opening, and movement of said closure to said position which closes said opening is operative to displace said bottomless compartment from said bottom and align it with said opening so that material in said compartment can enter the container.

2. A device as defined in claim 1 wherein said closure has front and rear walls, and said means for yieldingly retaining said closure in said position which closes said opening is disposed between said front and rear walls.

3. A device as defined in claim 1 including a container, said container having first and second walls defining an opening, means defining a pivotable support disposed in overlying relation to said container, said closure having front and rear walls and being pivotally mounted on said support, and said yieldingly retaining means are operative to urge said front and rear walls into contact with said first and second walls to close said opening.

4. A device as defined in claim 3 wherein one of said side walls in said bottomless compartment has a doorway therein, and a door mounted to said one side wall for permitting access to said bottomless compartment.

5. A device as defined in claim 4 wherein said door is pivotally mounted on an axis which is parallel to the pivoting axis of said charging door so that when said bottomless compartment is urged into alignment with said container opening said door is urged to said position which closes said opening.

6. A device as defined in claim 1 wherein one of the walls of said bottomless compartment includes blade means adjacent said bottom wall and disposed transversely of the path of movement of said closure to engage material in said bottom and move it to said opening when said closure is moved to said position which opens said opening.

7. An incinerator, said incinerator including an inlet chute, said chute having an upwardly facing opening defined by at least front and rear walls, charging means mounted for movement relative to said inlet chute, said charging means including closure means and bottomless compartment means, both of said last named means being in side by side relation so that either said closure means or said bottomless compartment can be selectively aligned with said opening.

8. An incinerator as defined in claim 7 including pivotal movement means defining an axis in alignment with said front wall, said charging means being pivotally mounted thereto so that said closure means normally closes said opening.

9. An incinerator as defined in claim 8 including means defining a compartment bottom, said compartment bottom means being disposed adjacent said front wall and normally lying below said bottomless compartment to support material to be incinerated.

10. An incinerator as defined in claim 9 wherein one of the walls of said bottomless compartment defines a doorway, a door mounted on said wall for selectively closing said doorway, and means for pivotally mounting said door for movement about an axis parallel to the axis of movement of said charging door.

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