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US 4,375,389 AGranted
Coke oven door cleaner
AssigneeKoppers Company, Inc.
InventorCarl Lindgren
Life of this patent
Estimating the term…
Abstract
An apparatus that employs a pair of high peripheral speed impact cutters to remove hard carbonaceous deposits from the lateral surfaces of the refractory lining of coke oven doors. The motion of these cutters is synchronized with that of an element of the apparatus which displaces it from one position to another on the door, and, in one embodiment, means are also provided to scrape tarry carbonaceous deposits from the door's seal ring.
Claims17
A self displacing apparatus for removing carbonaceous material from opposite lateral surfaces of a coke oven door comprising:
- (a) first and second generally cylindrical cutting drums, each of said cutting drums having a curved peripheral cutting surface which is positionable against the coke oven door;
- (b) first and second spaced, parallel through shafts, respectively coaxial with and connected end to end to the first and second cutting drums so as to transmit rotational motion to said cutting drums;
- (c) means for rotating said first and second through shafts and their attached cutting drums about their longitudinal axes so as to effect the removal of carbonaceous material from the coke oven door;
- (d) a common shaft perpendicularly interposed between the first and second parallel through shafts;
- (e) means for transmitting rotational motion between the first and second parallel through shafts and said common shaft;
- (f) rotational output means for displacing the apparatus on a vertical support;
- and
- (g) means for transmitting and reducing the rate of rotational motion between the common shaft and said rotational output means, such that the apparatus is vertically displaced at a rate which is proportional to the rate at which carbonaceous material is removed from the coke oven door.
5 more elements
A self displacing apparatus for simultaneously removing hard carbonaceous material from opposite lateral surfaces of a coke oven door and viscous carbonaceous material from a seal ring surface on a coke oven door comprising:
- (a) first and second generally cylindrical cutting drums, each of said cutting drums having a curved peripheral cutting surface which is positionable against the coke oven door;
- (b) first and second spaced, parallel through shafts, respectively coaxial with and connected end to end to the first and second cutting drums so as to transmit rotational motion to said cutting drums;
- (c) means for rotating said first and second through shafts and their attached cutting drums about their longitudinal axes so as to effect the removal of hard carbonaceous material from the coke oven door;
- (d) a common shaft perpendicularly interposed between the first and second parallel through shafts;
- (e) means for transmitting rotational motion between the first and second parallel through shafts and said common shaft;
- (f) rotational output means for displacing the apparatus on a vertical support;
- (g) means for transmitting and reducing the rate of rotational motion between the common shaft and said rotational output means, such that the apparatus is vertically displaced at a rate which is proportional to the rate at which hard carbonaceous material is removed from the coke oven door;
- (h) first and second spaced, parallel upper crank shafts which are disposed parallel to and above the first and second through shafts and which both have at least one attached crank;
- (i) first and second upwardly extending scraper arms which are attached, respectively, to the cranks of the first and second upper crank shafts and which both have at their terminal ends upper scraper elements which are positionable against the seal ring surface;
- (j) first and second lower crank shafts which are disposed parallel to and below the first and second through shafts and which both have at least one attached crank;
- (k) first and second downwardly extending scraper arms which are attached, respectively, to the cranks of the first and second lower crank shafts and which both have at their terminal ends lower scraper elements which are positionable against the seal ring surface;
- and
- (l) means for transmitting rotational motion from the first through shaft to the first upper and lower crank shafts and from the second through shaft to the second upper and lower crank shafts, such that the upper and lower scraper elements are linearly reciprocated on the seal ring surface so as to remove viscous carbonaceous material therefrom.
10 more elements
An apparatus for removing carbonaceous deposits from a seal ring surface on a coke oven door comprising:
- (a) first and second parallel upper crank shafts, said upper crank shafts being disposed to opposite sides of the coke oven door and which both have at least one attached crank;
- (b) first and second upwardly extending scraper arms which are attached, respectively, to the cranks of the first and second upper crank shafts and which both have at their terminal ends upper scraper elements which are positionable against the seal ring surface;
- (c) first and second lower crank shafts which are disposed, respectively, below said first and second upper crank shafts and which both have at least one attached crank;
- (d) first and second lower scraper arms which are attached, respectively, to the cranks of the first and second lower crank shafts and which both have at their terminal ends lower scraper elements which are positionable against the seal ring surface;
- and
- (e) means for rotating said first and second upper crank shafts and first and second lower crank shafts, such that the upper and lower scraper elements are linearly reciprocated on the seal ring surface so as to remove carbonaceous material therefrom.
3 more elements
Dependencies are inferred from the claim text.