EP0099542B1 - Installation de projection, en particulier pour le revêtement, par exemple, des fours de fusion et des poches de coulée - Google Patents

Installation de projection, en particulier pour le revêtement, par exemple, des fours de fusion et des poches de coulée Download PDF

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Publication number
EP0099542B1
EP0099542B1 EP83106821A EP83106821A EP0099542B1 EP 0099542 B1 EP0099542 B1 EP 0099542B1 EP 83106821 A EP83106821 A EP 83106821A EP 83106821 A EP83106821 A EP 83106821A EP 0099542 B1 EP0099542 B1 EP 0099542B1
Authority
EP
European Patent Office
Prior art keywords
spray
arm
set forth
filling device
template
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
Application number
EP83106821A
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German (de)
English (en)
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EP0099542A3 (en
EP0099542A2 (fr
Inventor
Kurt Wolf
Friedrich Prof. Dr.-Ing. Habil. Eckstein
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Individual
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Individual
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Publication date
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Priority to AT83106821T priority Critical patent/ATE27483T1/de
Publication of EP0099542A2 publication Critical patent/EP0099542A2/fr
Publication of EP0099542A3 publication Critical patent/EP0099542A3/de
Application granted granted Critical
Publication of EP0099542B1 publication Critical patent/EP0099542B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/02—Linings
    • B22D41/023—Apparatus used for making or repairing linings
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/44—Refractory linings
    • C21C5/441—Equipment used for making or repairing linings
    • 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
    • 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
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/0021—Devices for monitoring linings for wear

Definitions

  • Melting furnaces, ladles or the like are provided with a refractory lining, the delivery.
  • This lining is subject to severe erosion at certain points. It is therefore necessary to repair the lining locally at these points from time to time.
  • a device for mending the delivery of melting furnaces, ladles or the like in which a spray tube is held in a vertical arrangement on a frame which carries a crane hook at its upper end, while the Spray tube protrudes down from the frame.
  • the spray tube is angled to the side at its lower end.
  • Remotely controllable means are provided for rotating the spray tube about its longitudinal axis and for adjusting the height thereof relative to the frame.
  • the frame with the spray tube is lowered with a crane from above into a melting furnace or the like to be repaired.
  • the spray tube can be directed at the various areas to be repaired by remote control and fireproof material can be sprayed onto these areas.
  • the spray nozzle is at the end of the spray tube at a fixed distance from the axis of rotation of the spray tube.
  • the distance of the spray nozzle changes from the inner wall of the cavity, so that the material jet reaching the inner wall scatters more or less depending on the distance of the inner wall from the spray nozzle.
  • the inner wall of the vessel is scanned by microwaves so that deviations from a normal shape are determined.
  • the spray nozzle is adjusted accordingly so that the deviation is corrected by spraying on refractory material.
  • the spray nozzle is arranged at a fixed distance from the axis of rotation, namely practically on the axis of rotation.
  • the invention has for its object to ensure a defined application of refractory material regardless of the shape of the cavity or the depth of the wells to be repaired in an ejection device of the type defined to compensate for depressions in the inner wall of the cavity.
  • the spray nozzle can be held at a fixed distance from the surface to which the refractory material is to be applied. , There is therefore no distance-dependent scattering of the refractory material.
  • the ratio of spraying time and applied layer thickness remains essentially constant.
  • Embodiments of the invention are the subject of the dependent claims.
  • an ejection device can be created according to this principle, which on the one hand can work fully automatically, but on the other hand is built very robustly with essentially only mechanical parts that can withstand the harsh, hot and dusty environmental conditions that an ejection device of the present type can withstand usually exposed.
  • FIG. 1 shows an ejection device 10, through which the inner wall 12 of an essentially rotationally symmetrical cavity can be ejected with a mass adhering to this inner wall.
  • the exemplary embodiment shown is the repair of a “delivery”, that is to say a lining with a refractory mass, which has received irregular depressions 14 during operation by burning out.
  • the ejection device contains a carrier 16 which can be moved into the cavity by lifting means (not shown) in the lifting direction (vertical in FIG. 1).
  • 18 denotes a mass-injection device which has a spray nozzle 22 seated on an arm 20 and is rotatably mounted on the carrier 16 and can be rotated by a drive motor 24 seated on the carrier 16 about an axis 26 parallel to the stroke direction.
  • the spray nozzle 22 can be moved radially with the arm 20.
  • An adjusting device (FIGS. 2 and 5) is provided for adjusting the arm 20 with the spray nozzle 22, by means of which the arm can be adjusted radially in accordance with the normal cross-sectional profile of the cavity to be sprayed out.
  • a sensor 28 which responds to the distance between the inner wall 12.
  • the drive motor 24 can be controlled by the sensor 28 in a manner yet to be described in such a way that the rotational movement of the mass spraying device 18 is delayed when the distance between a reference point of the sensor and the adjacent inner wall exceeds a predetermined dimension.
  • a rotating cutting head 30 for smoothing the inner wall 12 and the mass sprayed onto it can be attached to the outer end of the arm 20.
  • the adjusting device contains a head plate 32 with a radial guide 34 for the arm 20 and a template plate 36, which can be rotated against it, with a control curve 38.
  • the head plate 32 is provided by a turning device to be described and the template plate 36 is rotatable relative to each other depending on the stroke of the carrier.
  • the control curve 38 can be scanned by a scanning and adjusting device 40.
  • the arm 20 is thereby radially adjustable according to the control curve 38 and the angle of rotation between the head plate 32 and the template plate 36.
  • the template plate 36 has a slot as the control cam 38, the ends of which have different distances r1 and r2 from the axis of rotation 42, around which the head and template plates 32 and 36 can be rotated relative to one another.
  • Attached to the arm 20 is a feeler member, preferably a cam roller 44 (FIG. 4), which engages in the slot.
  • the arm 20 has a circular cross-section.
  • the guide 34 provided on the head plate 32 has a lower pair of rollers 46, 48 with a concave-toroidal outer surface on which the arm 20 rests, and an upper roller 50 with a concave-toric outer surface which lies between the lower rollers 46, 48 resiliently rests on the arm 20.
  • the end of the arm 20 facing away from the spray nozzle 22 is provided with flats 52, 54 on opposite sides.
  • a shoulder 56 extending perpendicular to the arm 20 engages with a fork-shaped end 58 over these flats 52, 54 and is connected to the arm 20.
  • the cam roller 44 is attached to the end face of this approach 56.
  • the circular cross-sectional shape of the arm 20 has the advantage that dust cannot easily stick to the surface of the arm 20.
  • the straight line through the rollers 46, 48 and 50 is also very insensitive to dirt.
  • a rotation of the arm 20 in the guide 34 is prevented by the projection 56 and the guidance of the cam roller 44 in the slot of the cam 38.
  • 6 shows how the spray nozzle 22 rotates the stencil plate 36 relative to the top plate 32 between the two shown. End positions can be moved radially.
  • the head plate 32 and the template plate 36 are rotatably mounted on a central pin 60.
  • a channel 62 for the mass to be sprayed runs through the pin 60.
  • a hose 64 is connected to the lower end of the channel 62, through which the mass to be sprayed is supplied.
  • the mass to be sprayed is passed on via a hose 66.
  • the hose 66 is of sufficient length to follow the radial adjustment of the spray nozzle 22.
  • the arm 20, as can be seen from FIG. 5, is cranked around this stationary pin 60 in such a way that the adjustment of the spray nozzle 22 always takes place radially to the axis of rotation 42 which coincides with the axis of rotation 26 (FIG. 1) of the mass spraying device 18 .
  • the latching device 86 contains a latching ball 96 which is seated in an axial bore 98 of the driven part 68 which supports the head plate 32 and is under the influence of a compression spring 100 which is screwed onto a screwed into the axial bore 98 Abutment ring 102 supports.
  • the latching device 86 also contains a ring of depressions 104 on a part carrying the template plate 36. As shown in the right half of FIG. 2, this part can be the hub part 90, in whose lower end face the bores 104 are provided. However, as is shown in the left half of FIG. 2, a flange 105 can be formed on the hub part 90, in which the recesses 104 are formed.
  • the depressions define a plurality of relative angular positions between the head plate 32 and the template plate 26.
  • a switching pin 106 is attached to the latching ball 96, by means of which a switch 108 can be actuated when the latching mechanism is released and the latching ball 96 is depressed.
  • the switch 108 can be used to trigger a timing element, via which the stop element on the stencil plate can be actuated after a predetermined, optionally programmable, delay time in order to release the stop.
  • the template plate can be rotated relative to the head plate in more or less large steps. If the radius of the “desired area” increases, then depending on the stroke of the carrier 16 and the mass spraying device 18, the magnet 94, which is seated on the stationary carrier 16, is excited. As a result, the stop member 92 comes into the path of the stop 88 and prevents the hub part 90 from rotating further with the template plate 36. As a result, the latching ball 96 is pressed downward out of the recess 104, so that the hub part 90 with the template plate 36 remains and the part 68 is further rotated with the head plate 32. By depressing the detent ball 96, the switch 108 is actuated via the switching pin 106.
  • the switch 108 triggers a timing element which defines a time for which the lifting magnet 94 remains attracted after the locking ball 96 has been pressed down and holds the stop element 92 in its active position in the path of the stop 88. This time can be shorter than the time required to bring the next recess 104 of the ring into the area of the detent ball 96. In this case, the magnet 94 is switched off before reaching the next depression 104 and the stop member 92 is withdrawn. The detent ball 96 then falls into the next recess 104, so that the hub part 90 and the template plate 36 are then taken along with the part 68 and the head plate 32. The head plate 32 and the template plate 36 have then been rotated against one another by one step.
  • the solenoid 94 can remain energized for a longer time, so that the stencil plate 36 is rotated relative to the head plate 32 by several steps before the stencil plate 36 is released and the locking device 86 snaps back in and the stencil plate 36 takes the head plate 32 with it .
  • the spray nozzle 22 is moved radially outwards.
  • the direction of rotation of the drive motor 24 is reversed.
  • the stop 88 then also engages the stop member 92 when the solenoid 94 is energized, but on the opposite side.
  • the latching device 86 is also released and the template plate is now rotated in the opposite direction to the head plate which continues to rotate.
  • the lifting magnet 94 with the stop member 92 is pivotally mounted about an axis 110 parallel to the axis of rotation 26 of the mass spraying device 18. It bears against a stop 114 under the influence of a compression spring 112. A limit switch 116 can be actuated when the lifting magnet 94 is lifted from said stop 114 against the action of the compression spring 112. The drive motor 24 and the lifting magnet 94 can be switched off by the limit switch 116.
  • the compression spring 112 is strong enough to hold the lifting magnet 94 against the stop 114, even if the stop 88 comes to bear against the stop member 94 and the latching device 86 is triggered. However, if the cam roller 44 reaches the end of the slot 38 during the reverse rotation and the template plate 36 is carried along by the head plate 32, then the spring 112 is overcome. The lifting magnet 94 dodges and actuates the limit switch 116, which switches off the drive motor 24 and the lifting magnet 94.
  • FIG. 9 the function of the locking device 86 and the solenoid 94 with the stop member 92 and the stop 88 is schematically shown in the event that the cavity to be sprayed out first cylindrical with a small diameter in the region 118 then conically with a diameter widening from the smaller diameter in the region 120 and finally again cylindrical with a larger diameter in the region 122. This is shown in the upper part of FIG. 9.
  • the various positions that the locking ball 96 occupies with the switching pin 106 are also shown.
  • the first column in FIG. 9 shows the starting position which is given when the desired area of the cavity is cylindrical, that is to say the radius of the spray nozzle 22 is not to be changed. In this case, the detent ball 96 is in its upper position.
  • the lifting magnet 94 is switched off again and the stop member 92 is thereby withdrawn.
  • the template plate is no longer held back via the stop 88 and the stop member 92.
  • the head plate and template plate then rotate together again in the new relative angular position.
  • the time delay between the actuation of the switch 108 and the switching off of the solenoid 94 and thus the number of angular increments between the disengagement and removal depends on the slope of the cone in the region 120 and is entered via a suitable program. This process is then repeated, as indicated in the penultimate column in FIG. 9.
  • the magnet 94 is excited again and the stop member 92 is brought into the path of the stop 88, so that the stop 88 comes to rest against the stop member 92 after one revolution.
  • the radius of the spray nozzle is continuously increased the further the mass spraying device 18 is moved into the cavity to the right in FIG. 9, in accordance with the conical widening of the cavity in the area 120.
  • the magnet 94 is switched off, so that the mass spraying device 18 operates again with a constant, but enlarged radius.
  • the sensor 28 contains a part 120 fixed to the arm 20 and a feeler 124 movable relative thereto against the action of a spring 122.
  • the movement of the feeler 124 relative to the part 120 fixed to the arm makes it possible to control a brake (FIG. 11) which brakes the part carrying the head plate 32.
  • a sensor responsive to this power consumption of the drive motor 24 causes the drive motor 24 to sit still for a predetermined time. when the power consumption of the drive motor 24 exceeds a predetermined power consumption.
  • the sensor 28 moves from its central position, which corresponds to the desired area of the cavity, to the left in FIG. 10. Because a recess 14 is formed in the inner wall 12, as shown in FIG. 1, the peripheral part, which carries the head plate 32, is braked.
  • the power consumption of the motor 24 increases, that is to say the power consumption in the case of an electric motor, for example.
  • a sensor (not shown) responds to this increase and stops the drive motor 24 for a predetermined time.
  • the arm 20 no longer rotates with the spray nozzle 22, and a larger amount of the mass to be sprayed on is applied, which covers the depression 14 should fill out.
  • the brake is a shoe brake which rotates with the mass spraying device 18 and has two curved brake arms 126 and 128 which are connected to one another like scissors and which carry the brake shoes at their ends, of which only one brake shoe 130 is shown in FIG. 11 is.
  • the arc-shaped brake arms 126 and 128 grip around a fixed drum 132 (FIGS. 1 and 2), against which the brake shoes 130 come into contact when the brake is applied.
  • the movement of the pushbutton 124 relative to the part 120 fixed to the arm can be transmitted via an actuating cable 134 (Bowden cable) to two levers 136 and 138 seated on the curved arms 126, 128, such that when the pushbutton 124 is evaluated, a desired position is reached the brake is applied.
  • actuating cable 134 Boden cable
  • the part 120 of the sensor 28 which is fixed to the arm 20 is a cup-shaped part.
  • the feeler element has a movable cup-shaped part 140, which extends with its open end into the cup-shaped fixed part 120 and is guided in this in a slidable manner, as well as the coil spring.
  • 122 which is arranged within the two cup-shaped parts, and a probe body 142, for example, attached to the end face of the movable cup-shaped part 140.
  • the movable cup-shaped part 140 has a longitudinal slot 144.
  • a pin 146 sits on the fixed part 120 of the sensor 28 and protrudes into the longitudinal slot 144 and prevents relative rotation of the parts 120 and 140.
  • the part 120 fixed to the arm 20 has a sleeve 148 which is provided at one end with an external thread 150 and a nut 152 which is screwed onto the external thread 150 and to which an end plate 154 forming the bottom of the cup-shaped part 120 is welded is.
  • a central rod 156 is connected to the pushbutton 124 and extends through the fixed part 120 and the end plate 154.
  • the rod 156 is connected to the core 158 and the end plate 154 to the casing 160 of the actuating cable.
  • a cylindrical inner wall 200 is lined with irregular depressions 202 caused by burnout.
  • the radius of the inner wall 200 is constant.
  • the spray nozzle which is designated here by 204, is always at substantially the same distance from the surface to be sprayed, even in the case of deeply burned-out depressions. This ensures that the spray material is optimally held on the surface. If the spray nozzle is too close to the surface, the spray jet becomes too hard. The spray material jumps off the surface or spray material that has already been applied is loosened again. If the spray nozzle is too far away from the surface, the spray material is not hurled sufficiently firmly against the surface and does not adhere to it but falls off. If a depression 202 occurs, which is determined by a sensor 206, the speed of rotation of the mass spraying device 208 is reduced.
  • the ejection device for ejecting the inner wall 200 of a cavity 210 also contains a carrier 212 which can be moved into the cavity 210 by lifting means, and the mass spraying device 208 with the spray nozzle 204.
  • the mass spraying device 208 is still closed via the bearing 214 in FIG descriptively rotatably mounted on the carrier 212.
  • the mass spraying device 208 is driven by a drive motor 216 seated on the carrier 212 by a direction parallel to the stroke direction, i. H. vertical, axis 217 rotatable.
  • Sensor 206 is provided which responds to burnout of inner wall 200.
  • the drive by the drive motor 216 can also be controlled in the embodiment according to FIGS. 14 and 15 in such a way that the rotary movement of the mass spraying device 208 is delayed when the sensor 206 responds.
  • the spray nozzle 204 can be moved radially.
  • An adjusting device 218 is provided for adjusting the spray nozzle 204. through which the spray nozzle 204 is always kept essentially at a predetermined, optimal distance from the inner wall 200.
  • the senor 206 contains a push button 220 which is resiliently pressed outwards by a spring 222, and an electrical signal transmitter (not shown) which responds to the movement of the push button 220.
  • the drive motor 216 is controlled by the signals from the signal generator. Displacement transducers are known in many forms. It is also known to the person skilled in the art how an actuating motor can be controlled in dependence on the signal from the signal transmitter so that the rotary movement is delayed as a function of signals from the signal transmitter. This is therefore not shown and described in detail here.
  • the spray nozzle 204 is seated on a radially movable arm 224 (FIG. 15).
  • Arm 224 has a pair of parallel rods 226, 228.
  • the rods 226, 228 are connected by a cross member 230 at the outer end of the arm 224.
  • the rods 226, 228 are guided between four pairs of guide rollers 232 in a substantially radially movable manner.
  • the actuating device 218 has an electrical actuating cylinder 234 which is controlled by the signals from the signal transmitter of the sensor 206.
  • the actuating cylinder 232 extends parallel to the rods 226, 228 and engages on the cross member 230. Between the rods 226 and 228 there is a holder 236 which projects perpendicularly to the latter.
  • the holder 236 holds the spray nozzle 206.
  • the spray nozzle 206 is located at the end of a flexible hose 238.
  • the hose 238 is connected to a stationary compressed air and mass supply line 242 via a rotary coupling 240 coaxial with the axis of rotation 217 of the mass spraying device.
  • the compressed air and mass supply line 242 contains a straight piece of pipe which extends through a bushing 244 attached to the upper side of the carrier 212.
  • a hat-shaped part 246 is supported on this bushing via the bearings 214.
  • the hat-shaped part 246 carries a table 249 on which the parts of the mass spraying device described above are arranged.
  • the edge of the hat-shaped part 246 is provided with teeth. This toothing is in engagement with a pinion 248, which stands on the shaft of the drive motor 216.
  • a rotating cutting head 250 is also provided for smoothing the inner wall 200 and the mass sprayed onto it.
  • this rotating cutting head 250 can be driven by a pneumatic motor 252.
  • Said flexible hose 238 can optionally be connected to the spray nozzle 204 or the pneumatic motor, as is indicated in FIG. 14 by the dashed line 254. In the latter case, pure compressed air can be connected to the hose 238 via the mass supply line 242 and the rotary coupling 240.
  • the button 220 detects the recess 202. then the arm 224 is moved outward once via the actuating cylinder 234, thereby advancing the spray nozzle 204. It thus resumes its optimal position with respect to the inner wall to be molded on, which is now formed by the bottom of the recess 202. At the same time, the speed of the drive motor 216 is reduced for a certain time, so that more mass is sprayed onto the inner wall 200 per swept angle than before, and thereby the depression 202 is filled.
  • the relationship between the signal of the signal generator and the change in the speed of the drive motor 216 or of the pinion 248 can be changed according to the respective needs at a control knob 254.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Spray Control Apparatus (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Claims (18)

1. Dispositif de remplissage par projection destiné à réparer le revêtement de fours de fusion, de poches de coulées ou quelque chose semblable, par lequel la paroi intérieure (12) d'une cavité essentiellement à symétrie de rotation peut être remplie par projection avec une matière adhérant sur cette paroi intérieure (12), comprenant
a) un support (16) qui est déplacable dans la cavité par des moyens de déplacement dans la direction de déplacement,
b) un dispositif de projection de matière (18), qui
b1) présente une tuyère à projection (22),
b2) est monté rotativement sur le support (16), et
b3) est rotatif par un moteur de commande (24) situé sur le support (16) autour d'un axe (26) parallèle à la direction de déplacement,
c) un détecteur (28) qui répond aux parties consommées par le feu de la paroi intérieure (12), et
d) qui peut être commandé par le moteur de commande (24) de sorte que le mouvement rotatif du dispositif de projection de matière (18) est retardé en cas de réponse du détecteur (28), caractérisé par le fait que
e) la tuyère à projection (22) est radialement déplaçable, et
f) un dispositif de commande destiné à l'ajustement de la tuyère à projection (22) est prévu, par lequel la tuyère à projection (22) est toujours tenue essentiellement à distance optimale prédéterminée de la paroi intérieure (12).
2. Dispositif de remplissage par projection selon la revendication 1, caractérisé par le fait que
a) la tuyère à projection (22) est située sur un bras (20) radialement déplaçable,
b) le bras (20) est radialement déplaçable par le dispositif de commande en fonction du profil de section transversale de la cavité à remplir par projection, et
c) le détecteur (28) répondant aux parties consommées par le feu de la paroi intérieure (12) est situé sur l'extrémité du bras (20), et répond à l'écart entre la paroi intérieure (12) et le détecteur (28).
3. Dispositif de remplissage par projection selon la revendication 1, caractérisé par le fait qu'une tête coupeuse (30) rotative est prévue, qui est destinée à lisser la paroi intérieure (12) et la matière projetée sur celle-ci.
4. Dispositif de remplissage par projection selon la revendication 2 ou 3, caractérisé par le fait que le dispositif de commande comprend
a) une plaque de tête (32) ayant un guidage radial (34) pour le bras, ainsi que
b) une plaque de gabarit (36) ayant une came de commande (38),
c) un dispositif de rotation par lequel la plaque de tête (32) et la plaque de gabarit (36) sont rotatives l'une relative à l'autre en fonction du déplacement du support (16), et
d) un dispositif d'échantillonnage et d'ajustement (40) qui peut explorer la came de commande (38) et radialement ajuster le bras (20) en fonction de la came de commande (38) et de l'écart angulaire entre la plaque de tête (32) et la plaque de gabarit (36).
5. Dispositif de remplissage par projection selon la revendication 4, caractérisé par le fait que
a) la plaque de gabarit (36) possède comme came de commande (38) une fente dont les extrémités ont des écarts différents (rl, r2) de l'axe de rotation (42) autour duquel la plaque de tête et de gabarit (32 et 36) sont rotatives l'une relative à l'autre, et
b) un élément palpeur, de préférence un rouleau de guidage (44) qui s'engrène dans la fente, est fixé au bras (20).
6. Dispositif de remplissage par projection selon la revendication 4 ou 5, caractérisé par le fait que
a) le bras (20) est une barre de section transversale circulaire, et
b) le guidage (34) prévu sur la plaque de tête (32) comprend
b1) une paire inférieure de rouleaux (46, 48) ayant une surface latérale concave torique sur laquelle est appliquée la barre, et
b2) un rouleau supérieur (50) ayant une surface latérale concave torique qui est appliquée par ressort sur la barre entre les rouleaux inférieurs (46, 48),
c) l'extrémité de la barre opposée au tuyau par projection (22) est pourvue d'aplatissements (52, 54) sur des côtés opposés,
d) un talon (56) s'étendant perpendiculairement au bras (20) s'étend avec une extrémité bifurquée (58) sur ces aplatissements (52, 54), et est relié à la barre, et
e) le rouleau de guidage (44) est fixé au front de ce talon (56).
7. Dispositif de remplissage par projection selon l'une des revendications 4 à 6, caractérisé par le fait que
a) la plaque de tête (32) et la plaque de gabarit (36) sont montées rotativement dans un pivot central (60) par lequel s'étend un passage (62) pour la matière à projeter, et
b) le bras (20) est contrecoudé autour de ce pivot (60).
8. Dispositif de remplissage par projection selon l'une des revendications 4 à 7, caractérisé par le fait que
a) le moteur de commande (24) agit sur un élément (68) portant la plaque de tête (32),
b) un dispositif d'encliquetage (86) est prévu, à l'aide duquel la plaque de gabarit (36) peut être encliquetée dans plusieurs positions angulaires relatives à la plaque de tête (32), de sorte qu'en cas de rotation de l'élément (64), elle est entraînée avec celui-ci et la plaque de tête (32),
c) une butée (88) est reliée à la plaque de gabarit (36), et
d) un élément de butée (92) commandé disposé stationnairement, peut être déplacé dans la voie de la butée (88) de sorte que l'encliquetage de la plaque de gabarit (36) est relaché et la plaque de gabarit (36) est retardée par rapport à la plaque de tête (32) qui continue à tourner, jusqu'à ce que la plaque de gabarit s'encliquète de nouveau dans une autre position d'encliquetage déterminée par la position de l'élément de butée (92).
9. Dispositif de remplissage par projection selon la revendication 8, caractérisé par le fait que
a) le dispositif d'encliquetage (86) comprend
a1) une bille d'encliquetage (96) située dans un alésage axial (98) de l'élément (68) commandé portant la plaque de tête (32), la bille d'encliquetage étant soumise à l'action d'un ressort à pression (100), et
a2) une couronne de creux (104) dans un élément (90, 105) portant la plaque de gabarit (36) et dans lequel la bille d'encliquetage (96) peut s'encliqueter,
b) une broche de manoevre (106) est fixée à la bille d'encliquetage (96) et actionne un commutateur (108) lorsque l'encliquetage est relaché et, avec cela, la bille d'encliquetage (96) est pressée vers le bas, et
c) un système temporisé peut être déclenché par le commutateur (108), par quel système temporisé l'élément de butée (92) sur la plaque de gabarit (36), après un délais de retardation prédéterminé, le cas cas échéant variable par programme. étant commandable dans le sens d'un relachement de la butée (88),
d) un électro-aimant de levage (94) sur l'armature duquel est prévu l'élément de butée (92), est monté de manière à pouvoir pivoter avec l'élément de butée (92) autour d'un axe (110) parallèle à l'axe de rotation (26) du dispositif de projection de matière (18), et il est en contact, sous l'action d'un ressort à pression (112) avec une butée (114), et
e) un commutateur de limite (116) est prévu. qui peut être actionné lorsque l'électro-aimant de levage (94) est enlevé de la butée (114) contre l'action du ressort à pression (112), et par lequel le moteur de commande (24) et l'électro-aimant de levage (94) peuvent être arrêtés.
10. Dispositif de remplissage par projection selon la revendication 2, caractérisé par le fait que
a) le détecteur (28) comprend un élément (120) fixe sur le bras (20) et un élément palpeur (124) mobile par rapport à celui-ci et contre l'action d'un ressort (122),
b) un frein (fig. 11) est commandable par le mouvement de l'élément palpeur (124) par rapport à l'élément (120) fixe sur le bras (20), le frein freinant l'élément portant la plaque de tête (32),
c) un détecteur répondant à la puissance absorbée du moteur de commande (24) est prévu, qui peut arrêté le moteur de commande (24) en cas de dépassement d'une puissance consommée prédéterminée pour un temps prédéterminé.
11. Dispositif de remplissage par projection selon la revendication 10, caractérisé par le fait que
a) le frein est un frein à mâchoires tournant avec le dispositif de projection de matière (18) et ayant deux bras de frein (126, 128) arqués reliés comme des ciseaux, qui portent sur leurs extrémités des mâchoires de frein (130) et qui s'étendent autour d'un tambour fixe (132) contre lequel les mâchoires de frein (130) sont appliquées lorsque le frein est serré,
b) le mouvement de l'élément palpeur (124) par rapport à l'élément (120) fixe sur le bras (20) peut être transmis à deux leviers (136, 138) situés sur les bras arqués (126, 128) par l'intermédiaire d'un câble de commande (134) (câble Bowden), de sorte que le frein est serré en cas d'un mouvement vers l'extérieur de l'élément palpeur (124) au-delà d'une position désirée,
c) l'élément (120) fixe sur le bras (20) du capteur (28) est un élément en forme de pot,
d) l'élément palpeur (124) possède un élément mobile en forme de pot (140) qui, avec son extrémité ouverte, s'étend dans l'élément (120) fixe en forme de pot, et qui est guidé de manière à pouvoir glisser dans celui-ci, ainsi qu'un ressort à vis (122) disposé à l'intérieur des deux éléments en forme de pot (120. 140), et un corps palpeur (142) fixés au front de l'élément mobile (140),
e) l'élément mobile (140) en forme de pot présente une fente longitudinale (144), et
f) une broche (146) est située sur l'élément (120) fixe du capteur (28), cette broche s'étendant dans la fente longitudinale (144) et empêchant une rotation relative des éléments (120. 140).
12. Dispositif de remplissage par projection selon la revendication 11, caractérisé par le fait que
a) l'élément (120) fixe sur le bras (20) possède un manchon (148) pourvu d'un filet (150) à une extrémité, et
b) un écrou (152) vissé sur le filet (150) et auquel une plaque frontale (154) est soudée, qui forme le fond de l'élément (120) en forme de pot,
c) une barre centrale (156) est reliée à l'élément palpeur (124) et s'étend par l'élément (120) fixe et la plaque frontale (154), et
d) la barre (156) est reliée à l'âme (158) et la plaque frontale (154) à la chemise (160) du câble de commande (134).
13. Dispositif de remplissage par projection selon la revendication 3, caractérisé par le fait que
a) un élément de boîtier cylindrique fixe (132) du support, par rapport auquel le dispositif de projection de matière (18) peut être tourné grâce au moteur de commande (24), porte sur sa circonférence une denture (162),
b) sur le dispositif de projection de matière (18) est monté un arbre (164) sur lequel est située une roue dentée (166) qui s'est engrenée à la denture (162) sur l'élément de boîtier fixe (132), et
c) l'arbre (164) est couplé à la tête de lame (30) par l'intermédiaire d'un arbre flexible (168).
14. Dispositif de remplissage par projection selon la revendication 13, caractérisé par le fait que la tête de lame (30) comprend
a) un arbre (172) monté rotativement dans un manchon de serrage (170) et présentant sur son extrémité une fente longitudinale (174), ainsi que
b) une broche transversale (178) située dans un alésage transversal (176) de l'arbre (172) et présentant sur ses extrémités des fentes longitudinales (180, 182), et
c) une lame (184) arquée s'étendant sur plus d'un demi cercle et tenue avec ses extrémités (186, 188) dans les fentes longitudinales (180, 182) de la broche transversale (178), la lame étant guidée dans le centre dans la fente longitudinale (174) de l'arbre (172).
- 15. Dispositif de remplissage par projection selon la revendication 1, caractérisé par le fait que
a) le capteur (206) comprend un palpeur (220) pressé par ressort vers l'extérieur, et un capteur de signal électrique répondant au mouvement du palpeur, et
b) le moteur de commande (216) est commandé par les signaux du capteur de signal.
16. Dispositif de remplissage par projection selon les revendications 1 et 15, caractérisé par le fait que
a) la tuyère à projection (204) est située sur un bras (224) radialement déplaçable ayant une paire de barres (226, 228) parallèles l'une à l'autre qui sont reliées par une traverse (230) sur l'extrémité du bras (224) et qui sont guidées essentiellement radialement mobiles entre des rouleaux de guidage (232),
b) le dispositif de commande (218) présente un cylindre de commande (234) électrique commandé par les signaux du capteur de signal et qui s'étend parallèlement aux barres (226, 228) et qui s'applique contre la traverse (230), et
c) un support (236) s'étendant perpendiculairement relativement aux barres (226, 228) vers le haut, est fixé entre les barres et retient la tuyère à projection (206) située à l'extrémité d'un tuyau flexible (238) qui est en connexion avec une conduite fixe d'alimentation d'air comprimé et de matière (242) par l'intermédiairé d'un accouplement rotatif (240) coaxial relativement à l'axe de rotation (217) du dispositif de projection de matière (208).
17. Dispositif de remplissage par projection selon les revendications 3 et 16, caractérisé par le fait que
a) la tête de lame (250) rotative peut être actionnée par un moteur pneumatique (252),
b) le tuyau flexible (238) est facultativement reliable à la tuyère à projection (204) ou au moteur pneumatique (252), dans ce dernier cas, pur air comprimé étant appliquable au tuyau flexible (238) par l'intermédiaire de la conduite d'alimentation de matière et de l'accouplement rotatif (240).
EP83106821A 1982-07-20 1983-07-12 Installation de projection, en particulier pour le revêtement, par exemple, des fours de fusion et des poches de coulée Expired EP0099542B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83106821T ATE27483T1 (de) 1982-07-20 1983-07-12 Ausspritzvorrichtung, insbesondere zum ausbessern der zustellung von schmelzoefen, giesspfannen o.dgl.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3227034 1982-07-20
DE19823227034 DE3227034A1 (de) 1982-07-20 1982-07-20 Ausspritzvorrichtung, insbesondere zum ausbessern der zustellung von schmelzoefen, giesspfannen o.dgl.

Publications (3)

Publication Number Publication Date
EP0099542A2 EP0099542A2 (fr) 1984-02-01
EP0099542A3 EP0099542A3 (en) 1985-05-02
EP0099542B1 true EP0099542B1 (fr) 1987-05-27

Family

ID=6168819

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83106821A Expired EP0099542B1 (fr) 1982-07-20 1983-07-12 Installation de projection, en particulier pour le revêtement, par exemple, des fours de fusion et des poches de coulée

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Country Link
EP (1) EP0099542B1 (fr)
AT (1) ATE27483T1 (fr)
DE (2) DE3227034A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114460075B (zh) * 2021-12-30 2023-12-19 南京华鼎纳米技术研究院有限公司 一种基于图像识别的纸张修补方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1056213A (en) * 1964-03-13 1967-01-25 Refractory & Insulation Corp Method of coating furnace surfaces
US4218050A (en) * 1974-11-22 1980-08-19 Spribag Aktiengesellschaft Apparatus and methods for automatically lining containers, especially casting ladles
JPS51147510A (en) * 1975-06-13 1976-12-17 Nippon Steel Corp Method of measuring working surface profile of refractory lining vessels and of mending the surface
CA1102110A (fr) * 1976-04-19 1981-06-02 Masayuki Fujita Dispositif pour la deposition d'un materiau refractaire sur la face interne d'un four
US4301998A (en) * 1980-04-25 1981-11-24 Pfizer Inc. Vertical gunning apparatus with television monitor
SE424816B (sv) * 1980-06-06 1982-08-16 Svenska Silikaverken Spruta for sprutning av foder

Also Published As

Publication number Publication date
EP0099542A3 (en) 1985-05-02
DE3371808D1 (en) 1987-07-02
EP0099542A2 (fr) 1984-02-01
ATE27483T1 (de) 1987-06-15
DE3227034A1 (de) 1984-01-26

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