CN2366815Y

CN2366815Y - Rotable sleeve type sand jetting apparatus for reparing inner refractory linings of industrial furnace

Info

Publication number: CN2366815Y
Application number: CN 99200140
Authority: CN
Inventors: 王世松
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-01-06
Filing date: 1999-01-06
Publication date: 2000-03-01
Anticipated expiration: 2009-01-06

Abstract

The utility model belongs to the field of the industrial furnace and relates to a device used for refractory lining and hot patching operation. The utility model is characterized in that two pipelines can respectively convey gunning materials in pneumatic way; a double-layer sand jet casing pipe formed by water conversion can also convey the gunning materials; then, the gunning materials can be mixed at an outlet and can be jetted; the sand jet casing pipe can rotate to carry out the gunning operation in 360DGE and to carry out the fixed-point jet operation; simultaneously, the utility model is provided with the water-cooling and air-cooling protection, so that the utility model can carry out the long-time normal work in high temperature region above 1000DGE. The utility model has the advantages of smaller volume and good remote control property. The utility model not only can do gunning operation by the false dry method form, but also can have the flame gunning function.

Description

The rotatable bushing type sanding machine that the spray repair of industrial furnace refractory lining is used

The utility model belongs to the device that industrial furnace lining is repaired usefulness.

The equipment of existing hot repair industrial furnace refractory lining is: 1. centrifugal fettling machine: it is openr that it is mainly used in burner hearth, the vertical industrial furnace that the degree of depth is more shallow, for example be used for hot repair electric furnace arrangement for producing steel refractory lining, centrifugal fettling machine architectural feature is: the material casting dish is equipped with in taper hopper bottom, the material casting dish is driven by motor or air motor and does rotation at a high speed, mending material uninterruptedly is directed on the material casting dish in hopper, at material casting dish top humidification, at a high speed the mending material of the centrifugal force that produces of the material casting dish of rotation after with humidification thrown the purpose that industrial furnace refractory lining surface reaches fettling, weak point is, need the overhead traveling crane coordinating operation during work, take the overhead traveling crane of production usefulness, when vulcanizing stove, because high temperature in the burner hearth, make the roasting distortion of material casting dish of bottom easily, influence operate as normal.2. single current spray repair equipment: its architectural feature be the mending material carried of strength by sand-blast hose to steel pipe, at steel pipe rear portion humidification, steel pipe swings up and down the spray repair steel pipe about inserting in the burner hearth by fire door, make the mending material of carrying by strength behind the humidification be sprayed onto the fire-resistant interior surface of mending, thereby reach the purpose of fettling, weak point is that mechanization degree is low, and labor intensity of operating staff is big, work under bad environment can not be to covering the comprehensive spray repair of row in fire-resistant.

The purpose of this utility model provides a kind of new rotatable bushing type sanding machine, it is the critical component that horizontally rotates gun, it is in the position, industrial burner hearth deep of required hot gunning refractory lining during work, its nozzle right horizontal level section face be exactly the burner hearth section face position that industrial furnace lining needs hot gunning.The utility model is that the gunning refractory that transported by strength by two pipelines and water are transformed into by the bilayer sleeve nozzle and mix ejection at a high speed in the exit, is sprayed onto industrial furnace refractory lining surface by the gunning refractory of humidification; Air motor makes nozzle can do 360 degree rotation spray repairs; The cylinder brake apparatus can make nozzle do the fixed point spray repair; Use water-cooled, air cooling equipment protection sanding machine simultaneously, can under hot environment, work.The utility model can be used to repair industrial furnace, kiln, jars such as the ladle, ladle of electric furnace arrangement for producing steel, blast furnace, blooming soaking pit furnace, furnace cupola, vertical placement.

The utility model comprises that mainly parts such as bilayer sleeve, air motor, cylinder brake apparatus, water-cooled and air cooling equipment constitute, its main working parts constitutes: pneumatic transmission fluidisation sandpipe bottom is connected with fixed interior cover, by pneumatic transmission fluidisation sandpipe be communicated with successively fixed in cover, isolate in cover, inner sleeve forms stationary conduit, with the conversion of realization to revoling tube internal layer passage; Pneumatic transmission atomizing water pipe and double-deck water cooled housing, splicing sleeve, separation sleeve are formed cavity and are linked, atomize water pipe successively via between fixed interface, separation sleeve and the rotary interface by pneumatic transmission, be communicated with via outer tube, inner sleeve again and form another stationary conduit, to realize conversion to the revoling tube outer layer channel.The utility model is described in detail as follows with reference to Figure of description:

Fig. 1 is the structural profile schematic diagram of rotatable bushing type sanding machine; Fig. 2 is rotatable bushing type sanding machine A-A generalized section; Fig. 3 is the B-B profile; Fig. 4 is the rotary interface of sanding machine, inner sleeve, separation sleeve C-C profile; Fig. 5 is that the inner sleeve outer tube connects the D-D profile; Fig. 6 is braking wrench, sliding axle, piston rod profile; Fig. 7, Fig. 8 are brake component cut-away section schematic diagrames.

As shown in the figure, the 1st, advance the water sleeve pipe, the 2nd, airduct, the 3rd, fixed head, the 4th, pneumatic transmission atomizing water pipe, the 5th, fixed interior cover, the 6th, pneumatic transmission fluidisation sandpipe, the 7th, fixed interface, the 8th, separation sleeve, the 9th, bearing, the 10th, overcoat, the 11st, splicing sleeve, the 12nd, go out jacket pipe, the 13rd, airduct, the 14th, double-deck water cooled housing, the 15th, single-acting cylinder, 16 rotating discs, 17 brake scotch, the 18th, braking support plate, the 19th, single-row garden taper roller bearing, the 20th, rotary interface, the 21st, garden nut, the 22nd, male connection, the 23rd, inner sleeve, the 24th, cover in isolating, the 25th, outer tube, the 26th, brake block, the 27th, extension spring, the 28th, locating shaft, the 29th, braking wrench, the 30th, sliding axle, the 31st, piston rod, the 32nd, spring, the 33rd, cylinder body, the 34th, fairlead.

As shown in Figure 1, the utility model spray repair operation principle is, the gunning refractory that is transported by outside strength passes through pneumatic transmission fluidisation sandpipe 6, again successively by cover 5 in fixed, isolate in cover 24, inner sleeve 23, turn 90 degrees back horizontal direction ejection, the water that is transported by the outside is by pneumatic transmission atomizing water pipe 4, through enter between separation sleeve 8 and fixed interface 7 and the rotary interface 20 turn 90 degrees between inner sleeve 23 and the outer tube 25 after in the horizontal direction exit humidification gunning refractory spray the purpose that reaches fettling; As shown in Figure 5, one section flight is housed between inner sleeve 23 and outer tube 25, guarantee that inside and outside sleeve pipe has good radial concentric degree on the one hand, the pneumatic transmission atomized water is rotated when mixing with gunning refractory, more even humidification gunning refractory improves the adhesive rate of gunning refractory to industrial furnace lining.

By male connection 22, the double braid covering tubular type nozzle that parts such as inner sleeve 23 and outer tube 25 are formed, the principle that nozzle is rotated is: by the outside provide be not less than 0.5MPa gas by airduct 2 act on rotating disc 16 along on the blade of adorning on the side face of garden, rotating disc 16 is rotated, fixed head 3 is connected as a single entity with airduct 2, the inwall of two ends and double-deck water cooled housing 14 is welded together, airduct 2 is played booster action, being contained on the outer ring of bearing 9 and single-row garden taper roller bearing 19 overcoat 10 connects as one with rotating disc 16 and does rotation synchronously, the two bearings inner ring is contained on the fixed interface 7, fixed interface 7 connects as one with splicing sleeve 11, splicing sleeve 11 connects as one with the top of double-deck water cooled housing 14 again, thereby fixed interface 7 and splicing sleeve 11 be rotary part not, guarantees rotation by bearing 9 and single-row garden taper roller bearing 19; Parts overcoat 10 has good radial concentric degree with the fixed interface 7 of rotary part not, all rotary part weight all are by overcoat 10 supportings simultaneously, forward on the fixed interface 7 by single-row garden taper roller bearing 19, forward on the double-deck water cooled housing 14 by splicing sleeve 11 again, rotary interface 20 and garden nut 21 connect as one with overcoat 10, do rotation synchronously, rotary interface 20 adopts mazy movable sealing with non-rotary fixed interface 7 junctions, prevents that the seepage phenomenon from directly appearring herein in pneumatic transmission atomized water excessively; As shown in Figure 4, the four equally distributed gussets in separation sleeve 8 bottoms are installed in the breach of rotary interface 20 correspondences, the external diameter of gusset is installed in the corresponding inner ring, guarantee that on the one hand two parts have good radial concentric degree and rotation synchronously, guaranteeing that on the other hand the pneumatic transmission atomized water normally passes through between two parts, also is that mazy movable sealing separates pneumatic transmission atomized water and pneumatic transmission fluidisation sand between the separation sleeve 8 of rotation and the non-rotary fixed interior cover 5; Cover 5 tops and double-deck water cooled housing 14 connect as one in fixed, cover 24 and separation sleeve 8 are by being threaded to one in isolating, formed the V-type interface that docks with inner sleeve 23 interfaces, garden nut 21 plays the axial location effect on the one hand separation sleeve 8, male connection 22 and its are rotated synchronously, between male connection 22 and inner sleeve 23, there is the gusset lining to guarantee that two parts have good radial concentric degree, also guaranteed pneumatic transmission atomized water normal energy mistake between two parts simultaneously; The air motor generation of being made up of parts such as airduct 2, rotating discs 16 rotatablely moves, and finally passes to double braid covering tubular type nozzle.

The operation principle that nozzle of the present utility model is done the fixed point spray repair is: as shown in Figure 1, introduced in the single-acting cylinder 15 by airduct 13 by the source of the gas that the outside provides; As shown in Figure 2, single-acting cylinder 15 is made up of parts such as cylinder body 33, spring 32, the cold bars 31 of living, gas pressure is on the piston of piston rod 31, make the piston rod axially-movable, compression spring 32, after source of the gas was closed, piston rod 31 was got back to the home position under 32 effects of compression spring, and the rear portion of the cylinder body 33 of single-acting cylinder 15 and the inwall of double-deck water cooled housing 14 connect as one; As shown in Figure 6, the piston rod 31 of the cylinder other end is slidingly connected by sliding axle 30 and braking wrench 29, when piston rod 31 axially-movables, braking spanner 29 is rotated for the garden heart with the other end, the heart position, garden that braking spanner 29 rotates as shown in Figure 7, braking spanner 29 connects as one by part such as key bolt and brake block 26, braking spanner 29 rotates brake block 26 is rotated in fairlead 34, fairlead 34 is fixed on the braking support plate 18, and braking support plate 18 connects as one with splicing sleeve 11, below the braking support plate 18 outstanding support is arranged, support two brake scotch 17, make it not fall down because of deadweight; As shown in Figure 8, one end of two brake scotch 17 axle that is positioned 28 is fixed, and locating shaft 28 connects as one with braking support plate 18, two extension springs 27 act on two brake scotch 17 centre positions, make 17 one-tenth contraction states of two brake scotch, the other end is clamped the narrow symmetry side of brake block 26 bottom cuboids, at this moment between the corresponding inner ring of the outer ring of brake scotch 17 and rotating disc 16 a very little gap is arranged, do not influence the rotation of rotating disc 16, when brake block 26 rotates, the convergent force that its underpart cuboid makes brake scotch 17 overcome extension spring 27 outwards opens expansion, and the inner ring wall of outer ring contact rotating disc 16 correspondences produces frictional force, rotating disc 16 is stopped the rotation, thereby make nozzle do the fixed point spray repair, enter the source of the gas of single-acting cylinder 15 like this by control, just can control nozzle rotation or fixed point spray repair.

Two process for cooling processes of the utility model water-cooled, air cooling are: as shown in Figure 1, water-cooled is the interlayer that is entered the centre of double-deck water cooled housing 14 by the cooling water that the outside provides by water inlet sleeve pipe 1, flow out from going out jacket pipe 12, the outer wall at double-deck water cooled housing 14 has cooling water circulation reinforcement cooling like this; The gases at high pressure that enter by airduct 2 act on the residual air behind the air motor, and form malleation at the sanding machine inner chamber and discharge, parts in the cooling chamber on the one hand, isolated on the other hand external heat has channeling is gone in the chamber.

Deadweight of the present utility model is to support by the pipeline that guides various media to enter in the sanding machine.

The utility model has the advantages that:

1. have good equipment remote-control performance, its basic function can enter medium in it by conveyance conduit The outside of amount is controlled; 2. have simultaneously water-cooled, air-cooled protection owing to the utility model, can be at any high temperature Regional work is arbitrarily long-time, and equipment can not sustain damage; 3. small volume can be put into the cross section, abdominal cavity The abdominal cavity work of the industrial furnace that the space is narrower; 4. can be fire-resistant interior to carrying out comprehensive spray repair to industrial furnace, Also can to the spray repair of fixing a point of the liner at the serious place of damage comparison, repair the liner that damages; 5. strong adaptability, Have various ways to select in the application: the conveying of the water of gunning refractory and wetting gunning refractory is to carry respectively, just in spray Mix in the mouth exit, and to reach false method spray repair, dry gunning refractory spray repair can not occur by the strength conveying in trunk line Material collophore road inwall causes the conveyance conduit internal diameter to reduce and clogging; Guarantee that from the equipment angle gunning refractory is to liner High adhesive rate is arranged, and gunning refractory humidity can be regulated at any time, and the Double-layer sleeve-type nozzle allows to increase where necessary spray repair Chemical viscose glue dynamics between the material, between gunning refractory and the interior wall lining is for example mixed a certain proportion of positive phosphorus in gunning refractory Acid changes the water of wetting gunning refractory into and generates silica gel after water glass solution, orthophosphoric acid mix with water glass solution and have Strong viscose glue, adhesive surface when being conducive to spray repair and bumping against liner; Substantially the function that has flame gunning is such as pneumatic transporting Send the gas of gunning refractory to adopt oxygen rich gas to carry atomized water to change to carry the light oil that atomizes to mix at nozzle exit with outer Burning, the heating gunning refractory sprays to the refractory lining that needs repairing, reaches the purpose of flame gunning.

Claims

1. the rotatable bushing type sanding machine used of industrial furnace refractory lining spray repair is characterized in that it comprises into water sleeve pipe (1), airduct (2), fixed head (3), pneumatic transmission atomizing water pipe (4), cover (5) in fixed, pneumatic transmission fluidisation sandpipe (6), fixed interface (7), separation sleeve (8), bearing (9), overcoat (10), splicing sleeve (11), go out jacket pipe (12), airduct (13), double-deck water cooled housing (14), single-acting cylinder (15), rotating disc (16), brake scotch (17), braking support plate (18), single-row garden taper roller bearing (19), rotary interface (20), garden nut (21), male connection (22), inner sleeve (23), cover (24) in isolating, outer tube (25), brake block (26), extension spring (27), locating shaft (28), braking wrench (29), sliding axle (30), piston rod (31), spring (32), cylinder body (33) and fairlead (34) parts constitute; Pneumatic transmission fluidisation sandpipe (6) bottom with fixed in cover (5) is connected, by pneumatic transmission fluidisation sandpipe (6) be communicated with successively fixed in cover (5), isolate in cover (24), inner sleeve (23) form stationary conduit, with the conversion of realization to revoling tube internal layer passage; Pneumatic transmission atomizing water pipe (4) is formed cavity with double-deck water cooled housing (14), splicing sleeve (11), separation sleeve (8) and is linked, atomize water pipe (4) successively via between fixed interface (7), separation sleeve (8) and the rotary interface (20) by pneumatic transmission, be communicated with via outer tube (25), inner sleeve (23) again and form another stationary conduit, to realize conversion to the revoling tube outer layer channel; Between inner sleeve (23) and the outer tube (25) flight is housed; The double braid covering tubular type nozzle that male connection (22), inner sleeve (23) and outer tube (25) are formed, rotating disc (16) along on the side face of garden blade being housed; Fixed head (3) is connected with airduct (2), and the two ends of fixed head (3) are connected with the inwall of double-deck water cooled housing (14); Be contained in that overcoat (10) is connected with rotating disc (16) on the outer ring of bearing (9) and single-row garden taper roller bearing (19), the two bearings inner ring is contained on the fixed interface (7), fixed interface (7) is connected with splicing sleeve (11), splicing sleeve (11) is connected with the top of double-deck water cooled housing (14) again, rotary interface (20) and garden nut (21) connect as one with overcoat (10), and rotary interface (20) adopts mazy movable sealing with non-rotary fixed interface (7) junction; The equally distributed gusset in separation sleeve (8) bottom is installed in the corresponding breach of rotary interface (20), and the external diameter of gusset is installed in the corresponding inner ring, also is mazy movable sealing between separation sleeve of rotation (8) and the non-rotary fixed interior cover (5); Cover (5) top is connected with double-deck water cooled housing (14) in fixed, cover (24) and separation sleeve (8) are by being threaded in isolating, form the V-type interface that docks with inner sleeve (23) interface, the garden nut (21) of playing the axial location effect for separation sleeve (8) makes male connection (22) and its rotate synchronously by being threaded, the gusset lining is arranged between male connection (22) and inner sleeve (23); The air motor generation of being made up of airduct (2), rotating disc (16) rotatablely moves, and finally passes to double braid covering tubular type nozzle; Airduct (13) is communicated with single-acting cylinder (15), single-acting cylinder (15) is by cylinder body (33), spring (32), the cold bar (31) of living is formed, the rear portion of the cylinder body (33) of single-acting cylinder (15) is connected with the inwall of double-deck water cooled housing (14), the piston rod of the cylinder other end (31) is slidingly connected by sliding axle (30) and braking wrench (29), when piston rod (31) axially-movable, braking spanner (29) is rotated for the garden heart with the other end, braking spanner (29) is connected with brake block (26) by key bolt, brake block (26) is contained in the fairlead (34), fairlead (34) is fixed on the braking support plate (18), and braking support plate (18) is connected with splicing sleeve (11), below the braking support plate (18) outstanding support is arranged, support two brake scotch (17), one end of two brake scotch (17) be positioned the axle (28) fix, and locating shaft (28) is connected with braking support plate (18), two extension springs (27) act on two brake scotch (17) centre position, the other end of brake scotch (17) is clamped the narrow symmetry side of brake block (26) bottom cuboid, and is gapped between the corresponding inner ring of the outer ring of brake scotch (17) and rotating disc (16); Water inlet sleeve pipe (1), go out jacket pipe (12) and be communicated with double-deck water cooled housing (14) and constitute the recirculated cooling water passage.