US3736084A

US3736084A - Briquetting press with briquette conveying facility

Info

Publication number: US3736084A
Application number: US00214574A
Authority: US
Inventors: R D Mitchell
Original assignee: Combustion Engineering Inc
Current assignee: Combustion Engineering Inc
Priority date: 1971-12-29
Filing date: 1971-12-29
Publication date: 1973-05-29
Anticipated expiration: 1990-05-29
Also published as: GB1393559A; CA976804A

Abstract

A briquetting press of the stationary anvil movable die type provided with a passageway through the end frame portion of the press to which the anvil is secured and having a foraminous trough for catching the briquettes as they fall from the anvil and directing them through the passage in the frame and also having a pusher device that forcibly pushes the briquettes from the trough through the end frame passage incident to moving the die and its associated mechanism toward the anvil.

Description

Uite

tet 91 1 9 9 Mitchell [451 ay 29, 1973 541 BRHQUETTING PRESS WITH 2,404,559 7/1946 Ashbaugh ..425 354 x BRIQUETTE CONVEYING FACILITY 2,738,550 3/1956 Groves t ..425/352 1 3,070,003 12/1962 Stacy ..425/415 X [75] Inventor: Robert Davis Mitchell, Solon, OhlO [73] Assignee: Combustion Engineering, Inc., Primary Howard Flint windsorconn Attorney-Harris G. Luther and Radford W. Luther [22] Filed: Dec. 29, 1971 57 ABSTRACT PP- NOJ 214,574 A briquetting press of the stationary anvil movable die type provided with a passageway through the end frame portion of the press to which the anvil is [52] US. Cl. ..425/78, 425/412, 425/436 [51] Int Cl B30, 11/04 secured and having a forammous trough for catch ng 58 406 412 the briquettes as they fall from the anvil and directing 1 le 0 l them through the passage in the frame and also having 425/415 436; 18/16 a pusher device that forcibly pushes the briquettes 16 F from the trough through the end frame passage incident to moving the die and its associated mechanism [56] References Cited toward the anvil.

UNITED STATES PAT NTS 7 Claims, 10 Drawing Figures 2,393,130 1/1946 Toulmin ..425/78 X Y/l A PATENIELW29 ms SHEET 1 [IF 3 PATENTEL HAY 2 91973 SHLET 2 [1F 3 PATENTEL 119N919 3,736,084

SHEET 3 UF 3 FIG-9 FIG@ IL I 1 F? H I BRIQUE'I'IING PRESS WITH ERIQUETTE CONVEYING FACILITY BACKGROUND OF THE INVENTION In the operation of a briquetting press of the stationary anvil movable die type, the briquette is formed by moving the die and its associated chip box into engagement with the anvil and then moving the ram shaft through the chip box and into the die to compact the metallic chips into the form designated by the die. The die is then removed and then the ram shaft is retracted. The briquette then falls by gravity from the anvil into a suitable collecting or conveying device from whence it is directed from the press to the desired location.

Heretofore one conventional type of briquette receiv- 5 ing and conveying arrangement has been to provide a chute below the anvil which is directed downwardly and laterally outward to the side of the press. There is provided adjacent the end of the chute a relatively short conveyor belt upon which the briquettes from the chute fall with this belt conveying the briquettes upwardly and onto a longer and laterally directed conveyor belt. This arrangement has necessitated the formation of a pit adjacent the press at a level lower than the press in order to accommodate this upwardly directed conveyor and it has resulted in a relatively complicated and not entirely satisfactory conveying arrangement. With the present invention there is provided a briquetting press of improved construction where the briquettes are directed through and out of a passage formed in the end frame portion of the press with there being a positive action to cause such conveyance of the briquettes.

SUMMARY OF THE INVENTION In accordance with the invention there is provided on the briquetting press directly below the anvil a foraminous trough that is constructed of a series of spaced plate members fastened together in an assembly. This assembly is secured to the end frame portion of the press adjacent a passageway that is formed therein and extending parallel with the direction of movement of the die and chip box toward and away from the The trough effectively presents an upper surface which is inclined or directed downwardly from its outer end toward the passageway in the end frame portion. In order to positively convey briquettes from the trough into and through the passageway in the end frame portion there is provided a pusher assembly or pusher comb which is mounted so that it moves with the die and chip box portionof the press. It is made up of a series of plate-like members which are disposed between the plate members that make up the foraminous trough. The pusher assembly is so disposed that when the die and chip box are moved to their forwardmost position this assembly moves into the trough to a position adjacent the passageway and forcibly pushes a briquette disposed on the trough into the passageway.

Accordingly it is an object of the present invention to provide an improved briquetting press of the stationary anvil movable die type with an arrangement for positively directing briquettes out through a passageway formed in the end frame portion of the press to which the anvil is secured.

This and other objects and advantages of the present invention will become .apparent when considered in view of the following detailed description and annexed drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 through 5 are diagrammatic representations of a briquetting press embodying the present invention and showing the sequence of operations of the press to produce metal briquettes.

FIG. 6 is a side view of a portion of the press of the invention with parts thereof being broken away.

FIG. 7 is an elevational view taken generally from line 7-7 of FIG. 6.

FIG. 8 is a side view of an intermediate plate, per se, of the trough.

FIG. 9 is a side view of the end plate, per se, of the trough.

FIG. 10 is a plan view of a series of presses embodying the present invention and showing how they may' be associated with a single conveyor belt.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to the drawings, wherein like reference numerals are used throughout to designate like elements FIGS. 1 through 5 diagrammatically show a briquetting press of the fixed anvil movable die, type and illustrate the sequence of operation of the press. FIG. 1 shows the press with its movable chip box 10 and die 12 in the position where the die engages the anvil 14 secured to the stationary end frame portion 16 which makes up a portion of the frame of the press. In the FIG. 2 position the ram 18 has been moved as by a suitable hydraulic motor to its forward position where the ram shaft 18 passes across the chip box and the tip of the shaft extends into the die 12 to form the briquette 22 against the anvil 14. In FIG. 3 the chip box and the die have been moved as by means of a suitable hydraulic motor to their retracted position. Thereafter the ram 18 is retracted as shown in FIG. 4, and the briquette falls by gravity onto the trough assembly 26. FIG. 5 shows the chip box and anvil moved into the forward position again for a repetition of the cycle.

The trough assembly 26 is made up of a series of spaced intermediate plates 28 positioned between and spaced from end plates 30. All these plates are secured to the facing plate 32 as by welding and additional rigidity is provided by means of the bar 34 which extends between the two end plates 32 and is secured to these plates and to each of the intermediate plates. The trough is secured to the end frame portion by means of cap screws 36 and is located adjacent the inner end of the passage 38 which extends through the frame member from the inner face thereof to the outer face thereof in a direction generally parallel to the direction of movement of the die and chip box.

The intermediate plates 28 are of the configuration shown in FIG. 8 such that they collectively present a foraminous upper surface 48 of the trough which is directed downwardly toward the bottomof the passage 38 at the inlet end thereof. The end plates 30 however are of the configuration shown in FIG. 9 such that they effectively provide a side wall for the trough with the upper portion of the end plates being bent outwardly to provide a funnel eflect. These end plates also have a longitudinally extending portion 31 that protrudes into the inlet end of passageway 38 so as to tend to prevent briquettes from being jammed or otherwise hung up in the passage. In a typical construction the plates 28 may be one inch thick and spaced one-half inch apart. This spacing will be sufficient to permit any chips that may be broken loose from the briquette as it strikes the trough assembly to fall down through the trough and not be conveyed along with the briquette as is the case with the prior art conveying arrangement previously described. 1 In order to positively convey or push briquettes through the passageway 38 there is provided a pusher assembly which is received between the spaced plates of the trough assembly and is moved with the die and chip box toward and away from the entrance end of the passage 38.

in the illustrative arrangement the pusher assembly 40 is of comb-like construction being made up of a series of spaced plate members 42 that are secured at their upper end to the support bar 44 as by welding and are additionally secured to the bar 46 which extends transversely of these members. The assembly is secured to the die assembly of the press by means of cap screws 47 and it is so disposed that when the die and chip box are in their retracted position away from the anvil 14 as shown in FIG. 6 the pusher assembly is in its solid line position and is located beneath or spaced slightly away from the upper surface 48 of trough assembly 26. Since the pusher assembly is mounted on the die assembly of the press it moves therewith and when the die is in its forwardmost position the pusher assembly occupies the dotted line position shown in FIG. 6. In thus moving forward the pusher assembly is effective to a push a briquette that is resting on the upper surface of thetrough into the passage 38 and accordingly when there is a build-up of briquettes in this passage the pusher will effectively convey the briquettes through the passage and out the far end thereof. The briquettes will be directed from the outlet of passage 38 onto a suitable conveying device as for example a movable belt disposed transversely of the press with this belt conveying the briquettes to the desired location such as a collecting hopper.

With the arrangement of the invention there can be a single conveyor belt 50 associated with a number of briquetting presses 52 which may be located on each side of the belt as shown, with the presses directing briquettes out of their end frame portion onto the belt. For this purpose there may be provided extending the outlet end of each of the passages 38 a short chute 54 to direct the briquettes onto the center portion of the conveyor 50.

It will be understood that the embodiment shown and described herein is merely illustrative and that changes may be made without departing from the scope of the invention as claimed.

What is claimed is:

l. A briquetting press comprising in combination a face of the intermediate plate members and with the frame including' an end frame portion, a stationary anvil on said endf 'ame portion, means for forming'a briquette againsts'aid anvil including means moving into and out of engagement with said anvil, meansfor. receiving a briquette from said anvil and conveying the same out the end frame portion, this means including a foraminous trough positioned below said anvil to receive briquettes falling therefrom, said trough being secured to said end frame portion and communicating with a passageway that extends therethrough in the general direction of movement of said means for formupper surface of the upper plate members sloping downwardly toward said passage.

3. The briquetting press of claim 2 wherein said pusher is comprised of a series of spaced plates oriented to be received between the plates of said trough.

4. The briquetting press of claim 1 wherein the briquette forming assembly includes a die assembly movable into and out of engagement with said anvil and wherein said pusher assembly is secured to said die assembly for movement therewith.

5. The briquetting press of claim 1 wherein there are a plurality of presses in spaced parallel relation with the end frame portions being generally in a common plane, a conveyor belt extending generally parallel to said common plane and disposed below the opening in the end wall through which the briquettes are conveyed to receive briquettes from this opening in each of the presses.

6. A briquetting press comprising in combination a frame including an end frame portion, a stationary anvil secured to said end frame portion and having a relatively flat working surface, a briquette forming assembly movable in a direction generally normal to said anvil surface to and fiom a position in engagement with said anvil and a position spaced therefrom, means for receiving briquettes that fall from said anvil and directing the same through and out of said end frame portion, this last-named means including a foraminous trough secured to said end frame portion below said anvil, said trough communicating with a passageway extending through said end frame portion in the general direction of movement of said briquette forming assembly, a pusher assembly movable to and from a first position in said trough where it is efiective to push briquettes from the trough into said passageway and a second position where it is ineffective for this purpose, and means for moving said pusher assembly along with and in the direction of movement of the briquette forming assembly to and from said first and second positions.

7. A briquetting press comprising in combination a frame including an end frame portion, a stationary anvil on said end frame portion, means for forming a briquette against said anvil including means moving toward and away from said anvil, means disposed below said anvil to catch the briquettes that fall therefrom, and a passageway extending through the end frame portion of the press in generally parallel relation to the direction of movement of said briquette forming means, and means movable with said briquette forming means and operative to positively push briquettes from said catching means into said passageway.

The second sample was activated for 8 seconds in he following activator solution:

3 molar copper (II) nitrate 25 ml 3 molar potassium bromide 25 ml 3 molar citric acid ml 0.2 molar mercury (II) chloride 50 ml Water to make 1000 ml Egg? UNITED STATES PATENT OFFICE I CERTIFICATE OF CORRECTION 7 Patent No. 3336,08 Dated May 29, 1973 Inventor(s) Q Robert Davis Mitchell It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 3, line '47, after "extending" insert --from-.--; and

Column l, lines 61-67, cancel "The second sample was activatei for 8 seconds in he following activator solution:

3 molar copper (II) nitrate 2 5 ml 3 molar potassium bromide 25 ml ,3 molar citric acid o 100 m1 O.2-molar mercury (II) chloride 50 Water to make 1000-;h1l"

- Signed and'sealed this 4th day of March (SEAL) Attest:

' C. MARSHALL DANN I RUTH C. MASON v Commissioner of Patefits Attesting Officer andkTrademar-k's

Claims

1. A briquetting press comprising in combination a frame including an end frame portion, a stationary anvil on said end frame portion, means for forming a briquette against said anvil including means moving into and out of engagement with said anvil, means for receiving a briquette from said anvil and conveying the same out the end frame portion, this means including a foraminous trough positioned below said anvil to receive briquettes falling therefrom, said trough being secured to said end frame portion and communicating with a passageway that extends therethrough in the general direction of movement of said means for forming a briquette and means movable with said briquette forming means to push briquettes from said trough into said opening incident to said briquette forming means moving into engagement with said anvil.

2. The briquetting press of claim 1 wherein said foraminous trough is comprised of a series of plate members in spaced relation with the endmost plate members forming an end wall that extends above the upper surface of the intermediate plate members and with the upper surface of the upper plate members sloping downwardly toward said passage.

6. A briquetting press comprising in combination a frame including an end frame portion, a stationary anvil secured to said end frame portion and having a relatively flat working surface, a briquette forming assembly movable in a direction generally normal to said anvil surface to and from a position in engagement with said anvil and a position spaced therefrom, means for receiving briquettes that fall from said anvil and directing the same through and out of said end frame portion, this last-named means including a foraminous trough secured to said end frame portion below said anvil, said trough communicating with a passageway extending through said end frame portion in the general direction of movement of said briquette forming assembly, a pusher assembly movable to and from a first position in said trough where it is effective to push briquettes from the trough into said passageway and a second position where it is ineffective for this purpose, and means for moving said pusher assembly along with and in the direction of movement of the briquette forming assembly to and from said first and second positions.