US1920885A

US1920885A - Checker chamber for regenerative furnaces and the like

Info

Publication number: US1920885A
Application number: US661624A
Authority: US
Inventors: Petit Leon Thomas
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-03-18
Filing date: 1933-03-18
Publication date: 1933-08-01
Anticipated expiration: 1950-08-01

Description

L. T. PETlT Aug. 1, 1933.

CHECKER CHAMBER FOR REGENERAT-IVE FURNACES AND THE LIKE Filed March 18 1933 6 Sheets-Sheetl INVENTOR L EO/V Zv'O/WHJPEUZ ATTORNEYS L. T. PETIT 1,920,885 CHECKER CHAMBER FOR REGENERATIVE FURNACES AND THE LIKE Filed March 18, 1953 w 6 Sheets-Shee t 2 Aug. 1, 1933.

ATTORNEYS 7 PW mm E 0 r M a Z 6 Sheets-Sheet 3 I T. PETlT CHECKER CHAMBER FOR REGENERATIVE FURNACES AND THE LIKE FiledMarch 18, 1933 INVENTOR ATTORNEYS Aug. 1, 1933.

LEO/v ZZO/I Jf Er/IT Aug. 1, 1933. PET|T 1,920,885

I CHECKER CHAMBER FOR REGENERATIVE FURNACES AND THE LIKE Filed March 18, 1933 6 Sheets-Sheet 4 llllllll lllllll lllllll In H 1| II II II III ll II II [I l lIllll [III I INVENTOR k L'fa/vi/i oM/wgr/r BY Z ATTORNEY CHECKER CHAMBER FOR REGENERATIVE FURNACES AND THE LIKE Filed March 18, 1933 6 Sheets-Sheet 5 n n HI l I III-III l INVENTOR ATTORNEYS Aug. 1, 1933.

L. T. PETIT 1,920,885 CHECKER CHAMBER FOR REGENERATIVE FURNACES AND THE LIKE Filed March' 18, 1933 6 Sheets-Sheet 6 ATTORNEYS Patented Aug. 1 1933 This invention relatesv to furnaces and more particularly to furnaces using regenerative chambers such as open hearth furnaces, and has for its object the provision of an improved type of regenerative chamber.

Another object of the present invention is to provide means to readily remove and replace the checker brick work in the regenerative chambers.

Other objects and advantages will be apparent as the invention is more fully disclosed.

In accordance with the objects of the present invention I have devised a novel type of regenerative chamber in which the checker brick work is supported upon a suitable structural frame that is mounted on wheels, so that they may be Withdrawn from the chamber when the checkers require cleaning and removal. New or spare assemblies can'then be installed within the chamber .as soon asthe old ones are withdrawn, thereby providing for the substantial elimination of shut down periods heretofore experienced in these type of furnaces. As a modification of the present invention the entire chamber can be made removable in a similar manner if desired. Before further'disclosing the present invention reference should be made to the accompanying drawings wherein Fig. 1 illustrates in top plan view partly in section of an. open hearth furnace assembly'of units showing the adaptation of the present: invention thereto; g

Fig. 2 is a side elevation sectional view along plane 2-2, Fig. 1; I e 1 Fig. 3 is a sectional view along plane 3-13, Fig. 1;

Fig. 4 shows a modified structure of the invention; Y

Fig. 5 shows a second modified structure of'the invention; and

Fig. 6 is a section taken along plane 6-6 of Fi 5.

' In Fig. 1 the regenerative furnace 1, the stack 2 and two sets of checker chambers 3 are shown in their typical arrangement. The two sets of chambers are necessary to provide for alternate use through periodic reversal of damper I 4 in a manner heretofore, practiced in the art. As'the presentxinvention relates specifically to the checkerchamberfiand to an'improvement therein, further identification of cooperating elements of the assembly is believed not necessary in view of the fact thatsuch elements are CHECKEB- CHAIVIBER FOR REGENERATIVE FURNACES AND THE LIKE Leon Thomas Petit, Pittsburg, Calif.

Application March 18, 1933. Serial No. 661,624

' 10 claims. (01. 26319) function precisely as checker brick structures compared to that required for a complete shut within the chamber 3 is provided.

but'it is believed unnecessary to specifically demany the same removable checker assembly aptation of the present invention wherein the en- PATENT OFFICE eration of the assembly also need not be described.

In accordance with the present invention checker chambers 3 are improved by providing removable checker brick assemblies 5 supported 60 upon wheels 6 (not shown in Fig. 1) engaging in tracks '7. The entire assembly 5 is so constructed that it may be run into the chamber 3 on tracks"? and sealed therein and thereafter.

heretofore built integrally therein as heretofore in the art. When the checker brick requires cleaning or replacing the seal may be broken, the checker assembly withdrawn and a new one inserted in its place. The time interval required for such operation is relatively short as down to repair and replace a checker structure integrally built up within the chamber.

There are many possible adaptations of this broad idea of removable checker brick assemblies and many possible structures thereof. One structure maybe noted in Figs. 2 and 3, wherein the checker brick 8 is shown built up with end and side walls 9--9 and 1010 respectively. The frame of the truck 11 carrying wheels 6 carries also the base -12 of the checker assembly and between the base 12 and checker brick 8 are provided two longitudinally extending passageways 13-13 separated by partition 14. The bottom of' the assembly at one end is provided with a conduit 15 to connect passageways 13-13 to flue 16 leading to stack 2. Means such as indicated at 17 to seal the assembly There are other structural features illustrated fine the several parts as they are common in the prior art and readily recognizable.

In the modification illustrated in Fig. 4,. essenpears as heretofore described in Figs. 1, 2 and 3 with the new feature of constructing chamber 3 with an arched roof 20 common to both removable checker assemblies contained therein.

1 In Figs. 5 and 6 I have shown a further adaptire checker chamber is built up upon a frame 21 supported by wheels 22 running in tracks 23. The checker chamber consists of side, end, top and

bottom walls

24, 25, 26 and 2'? respectively with .checker brick 28 built up therebetween. A plurality of longitudinally extending flues 29 are provided in the'bottom of the chamber between 1 the bottom of checker brick 28 and bottom 2'7, the fines 29 communicating at one end with conduit 30 extending downwardly through bottom 27 and communicating with flue 31 leading to stack 2 as before. Outlet opening 32 is adapted to be placed in communication with opening 33 leading to an open hearth furnace 1.

In such an assembly as illustrated in Figs. 5 and 6 an entire checker chamber may be constructed at a point remote from the furnace, placed in position for use, taken away when necessary for repair, and replaced in a relatively short time interval with a new assembly, thereby avoiding extensive and expensive shut down periods.

Having broadly and specifically described the present invention it is apparent that many modifications and departures may be made therein without departing essentially from the nature and scope thereof and all such modifications and departures are contemplated as may fall within the scope of the following claims:-

What I claim is:

1. In a checker chamber forregenerative furnaces and the like, permanently located side, back end and top walls and a separate removable unit consisting of the bottom, front end wall and checker brick assembly of said chamber.

2. In a checker chamber for regenerative furnaces and the like, permanently located side, back end and top walls and a separate assembly of bottom, front end wall and checker brick adapted to be inserted and withdrawn from the said chamber as a unit without disturbing the permanently located walls of said chamber.

3. In a checker chamber for regenerative furnaces and the like, a checker chamber having substantially permanently located side, back end and top walls and a separate checker brick assembly including the bottom and front end walls, said assembly being adapted to be inserted and withdrawn from the said chamber as a unit without disturbing the permanently located walls of said chamber.

4. In a checker chamber for regenerative furnaces and the like, a checker brick assembly built up as a separate unit upon a base, said base having means thereon to permit a ready insertion and withdrawal of the checker brick assembly into and out of said chamber.

5. In a checker chamber for regenerative furnaces and the like, a checker brick assembly mounted upon wheels as a separate unit and adapted to be readily inserted or removed from the checker chamber.

6. A checker chamber for regenerative furnaces, said chamber being built as a separate unit upon a base frame carried on wheels and adapted to be readily moved into and out of cooperative posltion with respect to said furnace.

7. A checker brick assembly for checker chambers comprising a base frame supported on wheels, a checker chamber bottom carried by said frame, checker brick work, and a checker chamber end wall built up on said bottom, and a flue opening extending through said bottom communicating with said checker brick work.

8. A checker chamber comprising permanently located side, top and back end walls, a trackway extending thereinto, and a checker brick assembly built up on a frame carried by wheels engaging said trackway and adapted to be positioned within said chamber.

9. A checker chamber comprising permanently located side, top and back end walls, a trackway extending thereinto, and a checker brick assembly including a front end wall for said chamber built up on a frame carried by wheels engaging said trackway, said assembly being adapted to be readily inserted and withdrawn within the chamber.

10. A checker chamber comprising permanently located side, top and back walls, a trackway extendingthereinto, a flue opening in the bottom, and a separate checker brick assembly including a front end wall for said chamber built up on a frame carriedby wheels engaging said trackway, said assembly being adapted to be readily positioned within said chamber walls to complete the chamber structure with all its cooperating parts and elements.

LEON THOMAS PETIT.