US1772285A - Method and apparatus for disposing of refuse - Google Patents

Description

Aug. 5, 1930. s, 5 1 1,772,285

METHOD AND APPARATUS FOR DISPOSING OF REFUSE Filed Marh 14, 192'? 2 Sheets-Sheet 1 INVENTOR Pang J- iii'rg die! )M ATTO NEY Aug. 5, 1930.

P. s. KNITTEL METHOD AND APPARATUS FOR DISPOSING OF REFUSE 2 Sheets-Sheet 2 Filed March 14, 1927 ATTORNEY Patented Aug. 1930 UNITED STATES PAUL S. KNITTEL, 0F JERSEY CITY, NEW JERSEY METHOD AND APPARATUS FOR DISPOSING OF REFUSE A7 pl ieation filed March 14, 1927. Serial No. 175,069.

and of the moist garbage and delivering such I mixture to an incinerating furnaceto efi'ect the. complete and odorless oxidation of the material. It is also a feature of my present invention to provide .such an organization of the apparatus so that the liquid contents of the garbage may be largely recovered for subsequent treatment to extractthe valuable chemical elements therefrom.

With the above and other objects in view, the invention consists in the novel method and apparatus for the disposal of refuse, as

will be hereinafter more fully described, illustrated in the accompanying drawings,

and subsequently incorporated in the subjoined claims. I

In the drawings, wherein I have disclosed one simple and practical embodiment of the apparatus employed, and in which similar reference characters designate corresponding parts throughout the several views, Figure 1 is a longitudinal sectional view illustrating a typical installation of the apparatus constituting a refuse disposal plant operating in, accordance with my new method, and

' Fig. 2 is a plan view thereof.

' The material such as garbage, street sweep.- ings and trash .is delivered'by the city collectors into the structure 5 at one end of a group of structures or buildings housing the various parts of the apparatus. The material may be deposited either upon the floor 6, or directly into the hoppers7 and 8 respectively. The hopper 7 receives garbage or other material of comparatively high liquid content while the hopper 8 receives the dry rubbish or trash. The garbage is fed by the hopper 7 to a pulverizer 9 where it is disintegrated, and is then discharged upon an endless conveyer 10. This conveyer delivers the material to' a dewatering or liquid extracting device 11. Drippings from the pulverizer 9 are conveyed by the pipe 12 to a sump 13 while the liquid from the device 4 11 is delivered to said sump through the pipe 14. Hard material such as particles of wood and metal are discharged from oneside of the pulverizer 9 upon a second conveyer 15. This conveyer is relatively long and extends beneath the other hopper 8 to receive the dry material therefrom. The dewatered material is delivered by the device 11 upon the conveyer 15 at a point intermediate of the length of the conveyer, so thatit will be apparent that this moist material is more or less uniformly distributed upon the dry rubbish or trash which has been deposited on said conveyer from the hopper 8. The mixture is finally discharged by the conveyer 15 into a storage hopper 16.

An incinerating furnace generally indi cated at 17 is provided at its-front with a dutch oven 18 and the mixed material is de.- livered from the storage hopper 16 upon. a

travelling grate 19 upon which it is conveyed through said oven and isv subjected adjacent its point of entrance thereto to the flame of a suitable burner 20. Pulverized coal, gas or oil may be utilized as a'fuel. The fiame of the burner 20 rapidly heats, dries and ig-- nites the material on the travelling grate so that in' its transport through the furnace oven the material is largely consumed. A 35 second burner 21 may be arranged adjacent the discharge and of the grate 19 by which all remaining combustible carbon contents on the grate will be ignited so that when the residue is finally discharged by the grate 19 into thehopper 22, the material has been completely oxidized and is substantiallyin the condition of boiler furnace ashes.

23 designates a suitable arrangement of boilers to which the heat and gases developed in the oven 18'are conducted through a combustion chamber 24. In order to consume all odors and gases, a third burner 25 is arranged in this chamber.

The ashesdischarged into the hopper-.22

40 4 v ing the dewatered d stlntegrated refuse 'maare removed therefrom by a suitable elevating conveyer indicated at 26 and discharged into a storage bin 27 from which they maybe delivered into transporting vehicles and utilized in the manufacture of cinder block or as filling materials.

Since'the emission of odoriferous fumes into the. atmosphere is avoided, it will be appreciated that the refuse disposal; plant as above described may be advantageously located Within the city limits inconvenient relation to the'area of collection. Also by means of my improved method of disposal, an income may be derived by-the city from the utilization of the ashes, and the plant thus operated very economically. l

It is of course, to be understood thatin so far as my new method is concerned, various modifications of the illustrated apparatus mightbe resorted to, and Itherefore, reserve the privilegeof resorting to all such legitisistsin delivering dry refuse material upon' a' furnace feeding conveyer, disintegrating mate changestherein as may be fairly embodied. vvithinthe. spirit and scope of the inventionasclaimed. i

I claim: I

. 1. In a method of refuse disposal, delivering dry refuse material upon a furnace feeding conveyor, disintegrating liquid laden refuse, and then dewatering the disintegrated refuse and discharging the same at a point ;.-intermediate the ends of the conveyer upon" the dry refuse material to obtain a substantially uniform mixture of the dry and moist materials prior to delivery into the furnace. I

2. Amethod of refuse disposal which con liquid laden refuse material and removing and collecting the liquid therefrom for recovery of its chemical values, and dischargterial substantially uniformly upon the dry dry material on, the feed-conveyer at a pointintermediate of its ends, and means for col- 'lecting theliquid from said distintegrating means and the dewatering device for recovcry of its chemical values. j

6. 'In a method of refuse disposal, first separating the dry lighter refuse material from the heavier moist material,- and delivering saiddry material upon a'furnace feeding conveyor, disintegrating the liquid' laden refuse material and delivering the same upon a separate conveypr, then de'watering the disintegrated refuse dischargedfrom the latter conveyor and discharging the disintegrated dewatered refuse material in asuperimposed layer upon the layer of dry refuse material carried by said rst conveyor, and finally conveying the separate layers of dry and moist refuse material together and discharging the same into 'an jincinerating furnace;

In testimony that I claim the; foregoing'as my invention, I have signed my name hereto.

' PAUL S. -KNITTEL.

materialon said conveyor prior to delivery into the furnace. V

1.3.iA, refuse treating. apparatus including ;a. feed [conveyer for delivering material to a furnace, .means for discharging dry refuse material upon said conveyer, a second conveyer,jmeans for disintegrating liquid laden refuse material and discharging 'the same imupon saids'econd conveyer, and means receivingthe disintegrated material from said latter conveyer and'delivering the same substantially uniformly upon the dry'refuse material carried by said feed conveyer at a point intermediate the ends ofthe latter.

. 4.,.A refuse treating apparatus including a. feedconveyer for delivering material to a furnace, means .for discharging dry refuse material upon sa1d .conveyer, a second conveyer,smeans, for disintegrating liquid laden refuse material :and discharging the same uponsaid second. conveyer, and a dewatermg device receiving the, disintegratedmaterial from said latter conveyer anddischarging

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