CA1049776A - Mobile refractory gunning device - Google Patents
Mobile refractory gunning deviceInfo
- Publication number
- CA1049776A CA1049776A CA227,780A CA227780A CA1049776A CA 1049776 A CA1049776 A CA 1049776A CA 227780 A CA227780 A CA 227780A CA 1049776 A CA1049776 A CA 1049776A
- Authority
- CA
- Canada
- Prior art keywords
- boom
- mast
- support frame
- boom support
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B29/00—Other details of coke ovens
- C10B29/06—Preventing or repairing leakages of the brickwork
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
- B05B15/68—Arrangements for adjusting the position of spray heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D1/1636—Repairing linings by projecting or spraying refractory materials on the lining
- F27D1/1642—Repairing linings by projecting or spraying refractory materials on the lining using a gunning apparatus
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Spray Control Apparatus (AREA)
- Nozzles (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Soil Working Implements (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Abstract
SPECIFICATION
HARAN W. BULLARD
MOBILE REFRACTORY GUNNING DEVICE
ABSTRACT OF THE DISCLOSURE
A mobile refractory spraying apparatus for spraying refractory material onto the interior walls of an oven furnace or the like, for example, a coke oven. The apparatus comprises a spraying nozzle mounted on a boom, means for supporting a boom, means for moving it longitudinally, means for moving it vertically, means for tilting it, means for rotating it about a vertical axis and means for rotating it about the longitudinal axis of the boom. The apparatus is preferably mounted on a wheeled vehicle which also carries an air compressor, a slurry mixing tank and the necessary hydraulic equipment for delivering a refractory spraying material.
HARAN W. BULLARD
MOBILE REFRACTORY GUNNING DEVICE
ABSTRACT OF THE DISCLOSURE
A mobile refractory spraying apparatus for spraying refractory material onto the interior walls of an oven furnace or the like, for example, a coke oven. The apparatus comprises a spraying nozzle mounted on a boom, means for supporting a boom, means for moving it longitudinally, means for moving it vertically, means for tilting it, means for rotating it about a vertical axis and means for rotating it about the longitudinal axis of the boom. The apparatus is preferably mounted on a wheeled vehicle which also carries an air compressor, a slurry mixing tank and the necessary hydraulic equipment for delivering a refractory spraying material.
Description
The invention relates to apparatus for delivering fluid material to a surface, for example, refractory slurry apparatus for lining and patching the interior of refractory lined chambers particularly for use in those chambers relating to the manufacture of steel. The apparatus is especially useful in hot coke ovens for patehing craeks and spalled areas in the refraetory linings of sueh ovens.
Modern eoke ovens generally eonsist of a plurality of narrow, elongated horizontal ovens arranged side by side in groups ealled batteries. Ovens are generally less than two feet in width and eommonly have lengths of about forty feet and heights ranging from ten to fifteen feet. Eaeh end of a eoke oven earries a briek-lined removable door. The side walls of a coke oven are eonstrueted of siliea-brick set in silica mortar which forms a eeramie bond at high temperatures.
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" 1049776 During the coking process the intense heat often causes large cracks to occur in the refractory walls of the oven and may also cause spalling with the wall surface. Such cracks must be sealed with a silica refractory material to prevent leakage of volatile gases into the flues from whence such gases would be exhausted to the atmosphere via the battery stack. Spalled areas, if not restored to the original wall configuration, cause the formation of "stickers", the coke in the oven expanding to fill the cross-section in a spalled region which then resists being pushed through the narrower portion of the oven upon completion of the coking process.
Heretofore, patching of cracks and spalled areas has been accomplished by utilizing conventional refractory spray devices equipped with various lengths of small diameter pipes.
These pipes allow manual manipulation of the spray nozzle through doors or charging holes into oven chambers to reach and patch the cracked or spalled regions. The intense heat of the coke ovens subject repair personneL to considerable physical discomf~rt.
Restricted openings through which apparatus must be inserted to accomplish the repairs and the physical effort required to manipulate long sections of pipe often result in inadequate patching of crac}ced and spalled aréas which causes continued gas leakage and difficulties in coke pushing. Further, this method of patching is slow and inefficient particularly where a multi-battery coke plant requires a large volume of repair work.
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' "` ~04977~
The closest known prior art is sowman United States Patent No. 3,473,737.
It is the primary ob~ect of this invention to provide an apparatus for delivering gunning material to the inside of a furnace or oven, which apparatus is readily portable from oven to oven, and has sufficient maneuverability to manipulate a refractory spray nozzle to any given area within the oven.
According to the invention there is provided Apparatus for delivering f].uid material to a surface comprising; a base; a boom support frame vertically spaced from said base; a delivery boom operatively mounted in said boom support frame and having a delivery outlet, an upstanding mast interconnecting said boom support frame and said base including, :
;an upright elongated cylindrical sleeve extending downwards from said boom support frame and having its upper end arranged to support the latter; and a vertically extendible and retractible fluid pressure operated actuator having its opposite ends attached to the base and the sleeve respectively for raising and lowering the sleeve and the boom support frame,vertically.
;The invention is illustrated, by way of example, in the attached drawings, in which: ~ -~ ~ ~ 3 .
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`` 104977f~
Figure 1 is a side elevational view of my invented mobile fluid refractory material spraying apparatus mounted on a truck.
Figure 2 is a side elevational view of my apparatus on a larger scale than that of Figure 1.
Figure 3 is a horizontal section view of the support apparatus taken along the line III-III of Figure 2.
Figure 4 is a partially sectioned view of the boom and rotational drive taken along the line IV-IV of Figure 2.
Figure 5 is a detailed view of the front boom drive apparatus taken along the line V-V of Figure 2.
Figure 6 is a detailed view of the rear boom drive apparatus taken along the line VI-VI of Figure 2.
My refractory delivery device 10 is m'ountable on any desired mobile carrier such as a truck 12 shown in Figure 1. My complete operating unit consists of the transporting vehicle, my device, a standard air compressor, a hydraulic system, a slurry mixing tank, supply tank, a source of cooling water and spray water, and all necessary piping.
Mast 14 is mounted on a base 16, which in this case is the bed of truck 12. The mast consists of a sleeve 18 supported by a mast lifting cylinder 20 inside the mast sleeve. A mast track frame 22 is also fixed to base 16. The mast track frame 22 consists of four upright corner posts 24 connected outside their perimeter by a number of structural members 26 to give them the necessary rigid-ity. Each corner post 24 carries a wear plate 28 or wear angle as shown in Figure 3~ Mast carriage 30, which rides inside mast track frame 22, is a cage fastened to mast sleeve 18 by connecting plates 32.
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~(~49776 At each upper and lower corner of the cage, a pair of guide rolls 34 are journaled to the cage for vertical movement of the carriage.
A mast cap 36 which is a cylinder closed at the top and open at the bottom is situated atop the mast sleeve 18. The internal diameter of the mast cap is very slightly larger than the external diameter of the mast sleeve. This very close tolerance prevents play in the apparatus and allows the gunning apparatus to place material accurately. An annular gear 38 is fixed to the bottom of mast cap 36. Hydraulic drive motor 40 with its associated pinion 42 is fixed to the side of mast sleeve 18. The clevis at the top of the mast lifting cylinder 20 is fastened to mast sleeve 18 by pin 44 and its associated cotter key.
Mast cap 36 carries mounting brackets 46 atop it and oppos-ed mounting brackets 48 on its sides. Boom support frame 50 is , attached to mounting bracket 46 by pins and matching mounting ; brackets 52 longitudinallv centered on its underside. Tilting cylinders 54 are fastened to mast cap 36 through mounting brackets 48 and to boom support frame 50 through mounting brackets 56. Boom support frame 50 carries a pair of bearings 58 in which boom support 60 is journaled. Boom support frame 50 also carries motor support 62 upon which drive motor 64 is mounted. A large drive sprocket 66 is attached to the center of boom support 60 as shown in Figure 4. A
small drive sprocket 68 is carried by the drive shaft of motor 64.
The drive between the motor and the boom support is shown in Figure 4.
A small drive sprocket 68 is carried by the drive shaft of motor 64.
The drive force between the motor and the boom support is provided by drive chain 70,-- which passes over both the large sprocket 66 and the small sprocket 68.
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~Q49776 Boom support 60 also carries front boom drive 72 and rear boom drive 74. The front boom drive is determined by being nearer the end of the boom which carries the nozzle and the rear boom drive by being nearer the end of the boom which carries the slurry and water inlets. The boom drives 72 and 74 engage a boom 75 which is a hollow structural tube having watertight seals 78 and 79 at each end to form a cooling chamber therein. The boom preferably has a square cross section as shown in Figures 5 and 6, Centrally situated in the boom is a slurry pipe 80 which extends completely through the boom to the spray nozzle 82, which nozzle is attached to the end of slurry pipe 80 protruding from the boom. A water spray pipe 84 is also housed in the boom. Water inlet pipe 86 is located on the rear of the boom and terminates just inside the watertight seal 78. Water outlet pipe 88 extends through the boom to a short distance from the watertight seal 79 at the nozzle end of the boom.
Pipe supports 90 do not completely fill the boom but leave spaces for cooling water to flow therearound.
Front boom drive 72 comprises a pair of rollers, driven roller 92 and idler roller 94, both of which engage a surface of the boom 78. The drive support 96 also carries reversible drive motor 98 which is coupled to the drive roll 92, as well as a spring retainer 100 which houses a pair of compression springs 102, which bear against the chocks of idler roll 94.
Rear boom drive 74 includes a drive support 106 which carries a pair of driven rollers 108 and 110, with their respective reversing drive motors 112 and 114 and their respective couplings 116 and 118. Stops 122 and 124 are fixed to the front and rear of the boom respectively to prevent the boom from overextending or from overretr~ing during its traversing motion.
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Also carried on the vehicle 12 are an air compressor 130, a sydraulic unit 132, a slurry mixing tank 134 and a supply tank 136. Air compressor 130 provides the compressed air required to pump the slurry from the supply tank through the slurry pipe 80. Hydraulic unit 132 provides all of the required hydraulic pressure to operate each hydraulic cylinder and each hydraulic motor. The hydraulic connecting lines are not shown in the drawings since each of these is conventional.
Slurry mixing tank 134 acts as a holding tank or as a mixing tank in which dry refraetory material is mixed with water to form a slurry.
My mobile refractory spraying apparatus is capable of five motions after being transported to the working site.
The boom and nozzle can be raised in elevation by actuating mast lifting cylinder 20. This moves all of the apparatus upward within the mast track from 22, including mast carriage 30. Mast earriage guide rolls 34 bear against wear plates 28 in opposite direetions and at vertically spaced distances.
This prevents any bending moment from being exerted on the mast 14 during movement of the boom.
When reversing sydraulic drive motor 40 is actuated, pinion 42 engages annular gear 38 on mast cap 36 initiating rotational movement of the mast cap and boom apparatus about the vertical axis of mast 14. Of course, the mast cap can be rotated in either a cloekwise or eountereloekwise direetion.
Double aeting eylinders 54 are actuated to tilt the boom 76 about the horizontal axis of the pin in mounting braeket 52. Both eylinders 54 are powered simultaneously in opposite direetions, that is, on eylinder rod is extended while the other eylinder rod is retraeted to tilt the boom.
, Boom support 60 is rotated about its longitudinal axis by operation of reversing hydraulic drive motor 64 through drive sprocket 68 and drive chain 70, which chain engages both sprocket 68 and drive sprocket 66 on boom support 60. Since the boom 76 is held against rotation by the rolls of the front boom drive 72 and the rear boom drive 74, rotation of the boom support 60 imparts the same angular rotation to boom 76 and in the same direction.
The angular rotation allows exact aiming of the nozzle 82.
Boom 76 receives its traversing motion from the drive rolls of rear boom drive 74 and front boom drive 72. The front boom drive has a single drive roll 92, and the boom is constantly urged into contact with drive roll 92 by the action of compression springs 102 against the chocks of idler or guide roll 94. Rear boom drive 74 employs two driven rolls 108 and 110, which are driven by their associated reversing hydraulic drive motors 112 and 114.
At the work site, a source of water is connected to the cooling water inlet 86 and the water spray pipe 84. Water flows continuously through the inlet pipe, the boom and the water outlet pipe 88 to continuously cool the boom and its associated parts.
Slurry in either a wet or dry form is conveyed from the gun tank 136 by a connecting hose through the slurry pipe 80 to the spray nozzle 82. Water spray pipe 84 delivers water through the boom to a water spray nozzle attached to the end of spray pipe 84 on the front end of the boom when dry silica compound is applied to damaged oven surfaces.
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It is readily apparent from the foregoing that the apparatus shown in the drawings is capable of accurate placement of refractory materials in a hot or cold oven which may be otherwise inaccessible; that my apparatus is capable of imparting five motions to a spray nozzle including horizontal traversing, vertical traversing, tilting~
horizontal rotation and vertical rotation; and all motions are capable of being controlled by a single individual remotely from a position away from the heat of the furnace.
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Modern eoke ovens generally eonsist of a plurality of narrow, elongated horizontal ovens arranged side by side in groups ealled batteries. Ovens are generally less than two feet in width and eommonly have lengths of about forty feet and heights ranging from ten to fifteen feet. Eaeh end of a eoke oven earries a briek-lined removable door. The side walls of a coke oven are eonstrueted of siliea-brick set in silica mortar which forms a eeramie bond at high temperatures.
-: :
. .
.
., . ~ : :
' : ' ' : .
, ... . . - :
" 1049776 During the coking process the intense heat often causes large cracks to occur in the refractory walls of the oven and may also cause spalling with the wall surface. Such cracks must be sealed with a silica refractory material to prevent leakage of volatile gases into the flues from whence such gases would be exhausted to the atmosphere via the battery stack. Spalled areas, if not restored to the original wall configuration, cause the formation of "stickers", the coke in the oven expanding to fill the cross-section in a spalled region which then resists being pushed through the narrower portion of the oven upon completion of the coking process.
Heretofore, patching of cracks and spalled areas has been accomplished by utilizing conventional refractory spray devices equipped with various lengths of small diameter pipes.
These pipes allow manual manipulation of the spray nozzle through doors or charging holes into oven chambers to reach and patch the cracked or spalled regions. The intense heat of the coke ovens subject repair personneL to considerable physical discomf~rt.
Restricted openings through which apparatus must be inserted to accomplish the repairs and the physical effort required to manipulate long sections of pipe often result in inadequate patching of crac}ced and spalled aréas which causes continued gas leakage and difficulties in coke pushing. Further, this method of patching is slow and inefficient particularly where a multi-battery coke plant requires a large volume of repair work.
. .
' "` ~04977~
The closest known prior art is sowman United States Patent No. 3,473,737.
It is the primary ob~ect of this invention to provide an apparatus for delivering gunning material to the inside of a furnace or oven, which apparatus is readily portable from oven to oven, and has sufficient maneuverability to manipulate a refractory spray nozzle to any given area within the oven.
According to the invention there is provided Apparatus for delivering f].uid material to a surface comprising; a base; a boom support frame vertically spaced from said base; a delivery boom operatively mounted in said boom support frame and having a delivery outlet, an upstanding mast interconnecting said boom support frame and said base including, :
;an upright elongated cylindrical sleeve extending downwards from said boom support frame and having its upper end arranged to support the latter; and a vertically extendible and retractible fluid pressure operated actuator having its opposite ends attached to the base and the sleeve respectively for raising and lowering the sleeve and the boom support frame,vertically.
;The invention is illustrated, by way of example, in the attached drawings, in which: ~ -~ ~ ~ 3 .
. ~ ... . . - : :
`` 104977f~
Figure 1 is a side elevational view of my invented mobile fluid refractory material spraying apparatus mounted on a truck.
Figure 2 is a side elevational view of my apparatus on a larger scale than that of Figure 1.
Figure 3 is a horizontal section view of the support apparatus taken along the line III-III of Figure 2.
Figure 4 is a partially sectioned view of the boom and rotational drive taken along the line IV-IV of Figure 2.
Figure 5 is a detailed view of the front boom drive apparatus taken along the line V-V of Figure 2.
Figure 6 is a detailed view of the rear boom drive apparatus taken along the line VI-VI of Figure 2.
My refractory delivery device 10 is m'ountable on any desired mobile carrier such as a truck 12 shown in Figure 1. My complete operating unit consists of the transporting vehicle, my device, a standard air compressor, a hydraulic system, a slurry mixing tank, supply tank, a source of cooling water and spray water, and all necessary piping.
Mast 14 is mounted on a base 16, which in this case is the bed of truck 12. The mast consists of a sleeve 18 supported by a mast lifting cylinder 20 inside the mast sleeve. A mast track frame 22 is also fixed to base 16. The mast track frame 22 consists of four upright corner posts 24 connected outside their perimeter by a number of structural members 26 to give them the necessary rigid-ity. Each corner post 24 carries a wear plate 28 or wear angle as shown in Figure 3~ Mast carriage 30, which rides inside mast track frame 22, is a cage fastened to mast sleeve 18 by connecting plates 32.
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~(~49776 At each upper and lower corner of the cage, a pair of guide rolls 34 are journaled to the cage for vertical movement of the carriage.
A mast cap 36 which is a cylinder closed at the top and open at the bottom is situated atop the mast sleeve 18. The internal diameter of the mast cap is very slightly larger than the external diameter of the mast sleeve. This very close tolerance prevents play in the apparatus and allows the gunning apparatus to place material accurately. An annular gear 38 is fixed to the bottom of mast cap 36. Hydraulic drive motor 40 with its associated pinion 42 is fixed to the side of mast sleeve 18. The clevis at the top of the mast lifting cylinder 20 is fastened to mast sleeve 18 by pin 44 and its associated cotter key.
Mast cap 36 carries mounting brackets 46 atop it and oppos-ed mounting brackets 48 on its sides. Boom support frame 50 is , attached to mounting bracket 46 by pins and matching mounting ; brackets 52 longitudinallv centered on its underside. Tilting cylinders 54 are fastened to mast cap 36 through mounting brackets 48 and to boom support frame 50 through mounting brackets 56. Boom support frame 50 carries a pair of bearings 58 in which boom support 60 is journaled. Boom support frame 50 also carries motor support 62 upon which drive motor 64 is mounted. A large drive sprocket 66 is attached to the center of boom support 60 as shown in Figure 4. A
small drive sprocket 68 is carried by the drive shaft of motor 64.
The drive between the motor and the boom support is shown in Figure 4.
A small drive sprocket 68 is carried by the drive shaft of motor 64.
The drive force between the motor and the boom support is provided by drive chain 70,-- which passes over both the large sprocket 66 and the small sprocket 68.
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~Q49776 Boom support 60 also carries front boom drive 72 and rear boom drive 74. The front boom drive is determined by being nearer the end of the boom which carries the nozzle and the rear boom drive by being nearer the end of the boom which carries the slurry and water inlets. The boom drives 72 and 74 engage a boom 75 which is a hollow structural tube having watertight seals 78 and 79 at each end to form a cooling chamber therein. The boom preferably has a square cross section as shown in Figures 5 and 6, Centrally situated in the boom is a slurry pipe 80 which extends completely through the boom to the spray nozzle 82, which nozzle is attached to the end of slurry pipe 80 protruding from the boom. A water spray pipe 84 is also housed in the boom. Water inlet pipe 86 is located on the rear of the boom and terminates just inside the watertight seal 78. Water outlet pipe 88 extends through the boom to a short distance from the watertight seal 79 at the nozzle end of the boom.
Pipe supports 90 do not completely fill the boom but leave spaces for cooling water to flow therearound.
Front boom drive 72 comprises a pair of rollers, driven roller 92 and idler roller 94, both of which engage a surface of the boom 78. The drive support 96 also carries reversible drive motor 98 which is coupled to the drive roll 92, as well as a spring retainer 100 which houses a pair of compression springs 102, which bear against the chocks of idler roll 94.
Rear boom drive 74 includes a drive support 106 which carries a pair of driven rollers 108 and 110, with their respective reversing drive motors 112 and 114 and their respective couplings 116 and 118. Stops 122 and 124 are fixed to the front and rear of the boom respectively to prevent the boom from overextending or from overretr~ing during its traversing motion.
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Also carried on the vehicle 12 are an air compressor 130, a sydraulic unit 132, a slurry mixing tank 134 and a supply tank 136. Air compressor 130 provides the compressed air required to pump the slurry from the supply tank through the slurry pipe 80. Hydraulic unit 132 provides all of the required hydraulic pressure to operate each hydraulic cylinder and each hydraulic motor. The hydraulic connecting lines are not shown in the drawings since each of these is conventional.
Slurry mixing tank 134 acts as a holding tank or as a mixing tank in which dry refraetory material is mixed with water to form a slurry.
My mobile refractory spraying apparatus is capable of five motions after being transported to the working site.
The boom and nozzle can be raised in elevation by actuating mast lifting cylinder 20. This moves all of the apparatus upward within the mast track from 22, including mast carriage 30. Mast earriage guide rolls 34 bear against wear plates 28 in opposite direetions and at vertically spaced distances.
This prevents any bending moment from being exerted on the mast 14 during movement of the boom.
When reversing sydraulic drive motor 40 is actuated, pinion 42 engages annular gear 38 on mast cap 36 initiating rotational movement of the mast cap and boom apparatus about the vertical axis of mast 14. Of course, the mast cap can be rotated in either a cloekwise or eountereloekwise direetion.
Double aeting eylinders 54 are actuated to tilt the boom 76 about the horizontal axis of the pin in mounting braeket 52. Both eylinders 54 are powered simultaneously in opposite direetions, that is, on eylinder rod is extended while the other eylinder rod is retraeted to tilt the boom.
, Boom support 60 is rotated about its longitudinal axis by operation of reversing hydraulic drive motor 64 through drive sprocket 68 and drive chain 70, which chain engages both sprocket 68 and drive sprocket 66 on boom support 60. Since the boom 76 is held against rotation by the rolls of the front boom drive 72 and the rear boom drive 74, rotation of the boom support 60 imparts the same angular rotation to boom 76 and in the same direction.
The angular rotation allows exact aiming of the nozzle 82.
Boom 76 receives its traversing motion from the drive rolls of rear boom drive 74 and front boom drive 72. The front boom drive has a single drive roll 92, and the boom is constantly urged into contact with drive roll 92 by the action of compression springs 102 against the chocks of idler or guide roll 94. Rear boom drive 74 employs two driven rolls 108 and 110, which are driven by their associated reversing hydraulic drive motors 112 and 114.
At the work site, a source of water is connected to the cooling water inlet 86 and the water spray pipe 84. Water flows continuously through the inlet pipe, the boom and the water outlet pipe 88 to continuously cool the boom and its associated parts.
Slurry in either a wet or dry form is conveyed from the gun tank 136 by a connecting hose through the slurry pipe 80 to the spray nozzle 82. Water spray pipe 84 delivers water through the boom to a water spray nozzle attached to the end of spray pipe 84 on the front end of the boom when dry silica compound is applied to damaged oven surfaces.
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, . . . .
:. - ---. , . :
It is readily apparent from the foregoing that the apparatus shown in the drawings is capable of accurate placement of refractory materials in a hot or cold oven which may be otherwise inaccessible; that my apparatus is capable of imparting five motions to a spray nozzle including horizontal traversing, vertical traversing, tilting~
horizontal rotation and vertical rotation; and all motions are capable of being controlled by a single individual remotely from a position away from the heat of the furnace.
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Claims (10)
PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Apparatus for delivering fluid material to a surface comprising:
a base; a boom support frame vertically spaced from said base; a delivery boom operatively mounted in said boom support frame and having a delivery outlet, an upstanding mast interconnecting said boom support frame and said base including: an upright elongated cylindrical sleeve extending downwards from said boom support frame and having its upper end arranged to support the latter;
and a vertically extendible and retractible fluid pressure operated actuator having its opposite ends attached to the base and the sleeve respectively for raising and lowering the sleeve and the boom support frame vertically.
a base; a boom support frame vertically spaced from said base; a delivery boom operatively mounted in said boom support frame and having a delivery outlet, an upstanding mast interconnecting said boom support frame and said base including: an upright elongated cylindrical sleeve extending downwards from said boom support frame and having its upper end arranged to support the latter;
and a vertically extendible and retractible fluid pressure operated actuator having its opposite ends attached to the base and the sleeve respectively for raising and lowering the sleeve and the boom support frame vertically.
2. Apparatus according to claim 1 in which said cylindrical sleeve concentrically encloses said actuator.
3. Apparatus according to claim 2 in which said mast includes a mast cap which is relatively rotational with respect to said sleeve and is interposed between the upper end of said sleeve and said boom support frame, said mast cap being connected at its upper end to said boom support frame and having an open lower end concentrically enclosing said sleeve; and the apparatus includes means for rotating said mast cap with respect to said sleeve.
4. Apparatus according to claim 3 in which said rotating means includes an annular gear fixed to said mast cap and a drive motor, including a pinion engageable with said gear, attached to said sleeve.
5. Apparatus according to claim 3 or 4 in which said boom support frame is pivotally connected to said mast cap and said apparatus further includes a pair of oppositely acting fluid pressure operated actuators interconnecting said boom support frame and said mast cap on opposite sides thereof for inducing pivotal movement in the latter with respect to the axis of said mast.
6. Apparatus as recited in claim 1 including:
a mast track frame comprising a plurality of upstanding tracks parallelly disposed with respect to the axis of said mast and a mast carriage connected to said sleeve and having guide rolls engageable with said tracks.
a mast track frame comprising a plurality of upstanding tracks parallelly disposed with respect to the axis of said mast and a mast carriage connected to said sleeve and having guide rolls engageable with said tracks.
7. Apparatus as claimed in claim 1 in which said boom comprises a hollow structural tube closed at both ends to form a cooling chamber therein and carrying a water inlet pipe and a water outlet pipe each extending through one end to the interior of said boom means, and a delivery pipe extending through the length of the boom means and terminating in an outlet nozzle.
8. Apparatus as claimed in claim 7 further including a boom support journalled for rotation in said boom support frame, boom support rotating means mounted on said boom support frame and engaging said boom support for rotating said boom support about its longitudinal axis, and means connected to said boom support for traversing said boom along its longitudinal axis.
9. Apparatus according to claim 8 wherein said boom means further comprises a stop means connected to each end of said boom means to prevent overextending or over-retracting of said boom means during its traversing motion.
10. Apparatus according to claim 7, 8 or 9 wherein said boom means further comprises a water spray pipe extending therethrough, and a water spray nozzle connected to said water spray pipe.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US49107974A | 1974-07-23 | 1974-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1049776A true CA1049776A (en) | 1979-03-06 |
Family
ID=23950692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA227,780A Expired CA1049776A (en) | 1974-07-23 | 1975-05-26 | Mobile refractory gunning device |
Country Status (10)
| Country | Link |
|---|---|
| BE (1) | BE831445A (en) |
| CA (1) | CA1049776A (en) |
| CS (1) | CS185237B2 (en) |
| DE (1) | DE2531986A1 (en) |
| ES (1) | ES439623A1 (en) |
| FR (1) | FR2279532A1 (en) |
| GB (1) | GB1519335A (en) |
| IT (1) | IT1041316B (en) |
| PL (1) | PL120664B1 (en) |
| SU (1) | SU727164A3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195032A (en) * | 2020-09-30 | 2021-01-08 | 中国一冶集团有限公司 | Inside fire-resistant mud conveying system of coke oven big-arch shelter |
| CN112871510A (en) * | 2021-01-22 | 2021-06-01 | 谢水先 | Automobile connector oil brushing device |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2759889C2 (en) * | 1976-11-12 | 1983-01-13 | Kurosaki Refractories Co., Ltd., Kitakyushu, Fukuoka | Device for applying a refractory lining |
| DE2747191C2 (en) * | 1976-11-12 | 1983-01-27 | Kurosaki Refractories Co., Ltd., Kitakyushu, Fukuoka | Water control system for an apparatus for applying a refractory lining to the interior surface of a furnace |
| JPS53117005A (en) * | 1977-03-23 | 1978-10-13 | Fuaizaa Kuiguree Kk | Spray apparatus used for repairing fireeresistant lining |
| LU79401A1 (en) * | 1978-04-07 | 1979-11-07 | Refractaire Anstalt | SPRAYING EQUIPMENT FOR REFRACTORY AND OTHER MATERIALS, ESPECIALLY FOR COATING METALLURGY PLANTS |
| US4253646A (en) * | 1978-10-09 | 1981-03-03 | Nippon Steel Corporation | Hot blast-furnace-lining repairing apparatus |
| FR2568361B1 (en) * | 1984-07-24 | 1989-03-03 | Pasek & Cie Sa Stephan | EQUIPMENT FOR ALLOWING REFURBISHMENT AND REPAIR OF BLAST FURNACES COMPRISING A ROTATING CHUTE AND METHOD OF REFURBISHING AND REPAIRING BLAST FURNACES USING SUCH EQUIPMENT |
| US4801096A (en) * | 1986-04-11 | 1989-01-31 | Pfizer Inc. | Automatic gunning apparatus with detachably mounted gunning pipe |
| CN101927225A (en) * | 2010-08-19 | 2010-12-29 | 浙江宇诚华尔涂装设备制造有限公司 | Movable automatic powder spraying system |
| CN113318883B (en) * | 2021-05-31 | 2022-08-26 | 宿迁市同创化工科技股份有限公司 | Continuous production equipment and continuous production method for organic silicon resin paint film |
| CN114405730B (en) * | 2022-02-23 | 2023-03-31 | 侯士凤 | Connecting and fixing device for repairing water supply and drainage pipe and operation method thereof |
| CN115318519B (en) * | 2022-08-31 | 2024-05-28 | 无锡市晟然智能装备有限公司 | Electrostatic spraying device |
-
1975
- 1975-05-26 CA CA227,780A patent/CA1049776A/en not_active Expired
- 1975-07-15 GB GB29684/75A patent/GB1519335A/en not_active Expired
- 1975-07-16 BE BE158367A patent/BE831445A/en unknown
- 1975-07-17 DE DE19752531986 patent/DE2531986A1/en not_active Withdrawn
- 1975-07-18 IT IT68893/75A patent/IT1041316B/en active
- 1975-07-21 CS CS7500005146A patent/CS185237B2/en unknown
- 1975-07-22 SU SU752156912A patent/SU727164A3/en active
- 1975-07-22 ES ES439623A patent/ES439623A1/en not_active Expired
- 1975-07-23 FR FR7523031A patent/FR2279532A1/en not_active Withdrawn
- 1975-07-23 PL PL1975182238A patent/PL120664B1/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195032A (en) * | 2020-09-30 | 2021-01-08 | 中国一冶集团有限公司 | Inside fire-resistant mud conveying system of coke oven big-arch shelter |
| CN112871510A (en) * | 2021-01-22 | 2021-06-01 | 谢水先 | Automobile connector oil brushing device |
| CN112871510B (en) * | 2021-01-22 | 2022-06-14 | 前海聚英(深圳)精密技术有限公司 | Automobile connector oil brushing device |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2279532A1 (en) | 1976-02-20 |
| AU8287875A (en) | 1977-01-13 |
| BE831445A (en) | 1976-01-16 |
| PL120664B1 (en) | 1982-03-31 |
| GB1519335A (en) | 1978-07-26 |
| ES439623A1 (en) | 1977-06-01 |
| SU727164A3 (en) | 1980-04-05 |
| DE2531986A1 (en) | 1976-02-05 |
| IT1041316B (en) | 1980-01-10 |
| CS185237B2 (en) | 1978-09-15 |
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