SU1056524A1 - Installation for repairing linings of metallurgical vessels - Google Patents

Abstract

INSTALLATION FOR REPAIR OF FUTE-. ROYUK OF METALPURGICAL CAPACITIES, containing a rotary table for metallurgy. and breaking the lining. Various designs of the device for pouring linings, additional detachments, packing, shotcrete and breaking are known. All of them are made in the form of an Ethical tank, a unit for the preparation and supply of refractory masses and a device for stuffing the lining with a platform that is movable relative to the turntable, characterized in that, in order to expand technological capabilities and create a compact unit, it is additionally equipped with casting machines. , additional compaction, gunning and breaking of the lining, located on a common movable platform with the device, while at the side of the platform facing the container, the direction corresponding to rotary table barites for the metallurgical tank in the i plan, along which the working bodies of the above technological devices are located (LSG devices, the platform is located under the unit for preparing and supplying refractory masses to the tank. 2. SPL of SP stand-alone machines, such as As a rule, one operation is either casting, or packing, or breaking. A disadvantage of the known devices is that they are intended to perform only one technological operation, while in practice it may be necessary to combine operations, such as the implementation of brandy with douplytneniem, and individually each zanimaeg fairly significant production area. The closest in technical essence is the installation for stuffing

Description

The lining of the steel-teeming ladles, which contains a turntable, a unit for preparing and feeding refractory masses into the ladle and a device for stuffing the lining, which has a platform that is fixed to the turntable relative to the turntable. The disadvantages of this installation are the following. This installation, like its counterpart, ensures that only one technological operation is carried out, in particular, a packing. Additional installations are required to perform repair operations, such as breaking, jTo will increase the occupancy of the production area. Thus, the installation is not universal and compact. The purpose of the invention is the expansion of technological capabilities and the creation of a compact installation. The goal is achieved by the fact that the installation for the repair of metallurgical containers, containing a rotary table for a metallurgical tank, a preparation and supply unit for refractory masses and a device for filling the lining, located on a movable platform, are additionally equipped with devices for casting, repacking, for gunning and breaking the lining. on a common platform, while in the side of the platform facing the tank, made vfez corresponding to the dimensions of the turntable for metallurgical loan the bones in the plan, along which the working bodies of the above-mentioned technological devices are located, the platform being located under the site for preparing and supplying refractory masses to the container. With such a design, the installation has one rotary table, one preparation and supply unit for refractory masses, a common platform for functional devices and is a single unit. The arrangement of the devices on the platform cut-off sections allows any device to operate both independently and in combination with others. This expands the technological capabilities of the installation and makes it compact. The offer comprehensively solves the issues of repair of metallurgical ladles; The reduction in the dimensions and the increase in compactness also contributes to the expansion of the common platform under the unit for preparing and supplying the refractory masses to the ladle. Thus, new in the invention is the joint placement on a common platform of a certain construction of functional devices. FIG. 1 shows the proposed installation for the repair of metallurgical tanks in the plan, a general view; in fig. 2 shows a device dp for fabricating a monolithic lining, using an AA section in FIG. one; on . . FIG. 3 is a section along BB in FIG. 1 (device for additional consolidation of liquid and plastic masses); in fig. 4 is a section along b-b in FIG. 1 (device for stuffing (compaction) of semi-dry masses); in fig. 5 is a section along G ‑ Y in FIG. 1 (gunning device); in fig. 6 is a sectional view in FIG. 1 (device for breaking lining). The installation for repairing the linings of metallurgical vessels, in particular of the steel mill of the Yevochny bucket 1 (Fig. 1), contains a table 2 rotatable in a horizontal plane with a drive 3 placed in a bucket me 4 (Fig 4), a site 5 for preparing and feeding refractory masses and devices (see Fig. 1) for the manufacture of monolithic lining by pouring 6, for completing compaction and plastic refractory masses 7, for stuffing semi-dry refractory masses 8, for gunning 9, for breaking the lining tO. The devices 6-10 are located on a common platform 11, having the possibility of reciprocating relative to the turntable with a carpet (the platform drive is not shown in the drawing). The working side of the platform 11, facing the bucket, is shaped curved along a broken line so that each segment of the latter, on which a specific device is placed (pos.6-10), P VD is smoked straight passing through the center of the table 2 and the working tool corresponding device. The platform is located under the unit for preparing and supplying refractory masses; auger 12 is mounted on it to supply the refractory mass from unit 5 to the ladle 1. Device 6 (Fig. 2) for repairing metallurgical containers by casting contains a sectional template 13 with a vibration exciter installed in the steel pouring ladle 14 mi and auger 12 with a discharge chute 15 (working tool). The device 7 (Fig. 3) for additional compaction of fluid-moving and plastic masses contains a support column 16 mounted on a movable platform 11 The support column is equipped with a drive system 17 and a carriage 18 mounted with vertical movement along the column 16, a vibration damper 19 with a vibration strap attached to the carriage 18 20 and vibro-excite-; Lem 21. Vibrotool 22 (working tool) is fixed on the vibrating rod 20. The device 8 (Fig. 4) for packing the lining (compaction of semi-dry masses) contains a supporting column mounted on the platform. 23, equipped with a drive system 24 and a carriage 25 installed with the possibility of vertical movement along the support column 23. A column 27 is attached to the carriage 25 through the yoke 26, on which is attached a movable template 28 (working tool), vibration tools 29 with vibration exciters 30. The transfer of refractory masses under the template 28 is carried out by 4tepe3 special withdrawal from tray 31. The withdrawal is not shown in the drawing. Device 9 (Fig. 5) for the shotcrete of pouring ladles contains a supporting column 32 installed on the platform The system 33 and the carriage 34 mounted with the possibility of vertical movement along the column 32. A guide 36 attached to the carriage 34 through the yoke 35 is equipped with the system 37 and the carriage 38 with the nozzle 39 (working tool) installed with the possibility of vertical movement 36. The transfer of refractory masses from unit 5 is carried out through hose 40 (Fig. 1 and Fig. 5). The device 10 (FIG. 6) for breaking the lining of the casting ladles contains a support column 41 mounted on the platform, equipped with a drive system 42 and a carriage 43 mounted for vertical movement along the support column 41. A rotary boom 45 sec is attached to the carriage 43 through the cross beam 44 drive 46. The rotary boom 45 has 10 46 the ability to move an angle about the carriage 43. On the rotary boom 45 there is fixed a rotary head 47 into which working tools are embedded - scrap 48, roller cutter 49, and also driver 50. A rotary head actuator 51 is located above the rotary head on the rotary arrow 45, which allows the rotary head to be rotated by an angle and. The proposed installation works as follows. The steel ladle is installed in the bucket mu 4 on the rotary. table 2. Platform 11 is in the extreme right position. To repair (manufacture) the monolithic lining with fluid-moving and plastic masses by casting (Fig. 2), a sectional template 13 is installed in the bucket so that the gap between the inner wall of the bucket and the outer surface of the template is the same around the entire circumference. The movable platform 11 extends from under the assembly 5 and is supplied to the bucket so that the discharge tray 15 of the transporting screw 12 is opposite the gap between the sectional template 13 and the wall of the bucket. The drive includes 3 rotations of the table, auger, and a preparation and supply unit., Refractory masses. The fluid mass from this unit through the screw 12 enters the space between the sectional template and the wall of the bucket, and due to the rotation of the bucket it is evenly distributed throughout the gap until it fills the whole space. In the process of pouring along the „gpe of lifting the refractory mass from the bottom of the ladle upwards, vibration exciter 14 of all sections of the template is briefly turned on. After the monolithic lining is completed, all mechanisms are turned off in reverse sequence, moving: the platform is retracted to the initial position, not obstructing the removal of the bucket from the bucket 4. 4. dp compaction of the fluid-moving and ductile masses when the drive 17 of the device 7 is turned on (FIG. 3) carriage 18 is lowered down the supporting column 16, and together with the carriage formed by the sectional template 13 by the istenka bucket, the vibrating rod 20 is loaded with the web-tool 22. As the refractory mass enters the space between Tenko bucket and Vibrating template is immersed in a mass. The vibroexclude is turned on 21, and the vibrotool begins to process the surface layer of the mass. During the operation of the device, the vibrotool as it is filled with mass of space is synchronously raised by the drive system upwards and during the rotation of the bucket, it processes the surface layer of the refractory mass to the surface of the bucket. At the end of the lining production, the cooking and feeding unit for the refractory masses, the auger and the vibration exciter 21 are disconnected. The vibrating rod with the vibrotool is raised to its upper initial position by the drive system. When using a packing device (compaction of semi-dry masses) of FIG. 4 - platform 11 is brought to the ladle, and the movable template 28, together with the vibrating tools 29 and the vibration exciter 30, mounted through the column 27, the yoke 26 to the carriage 25, are lowered along the supporting column 23 into the casting ladle with a predetermined gap between the movable template and the inner wall of the ladle, determined by the thickness of the lining. Seal refractory mass in the lining volume is as follows. Vibrotools compact the mass supplied to the space between the bucket and the working surface of the rolling template. As the mass compresses in accordance with a given mode, the bucket rotates relative to the template. In this case, the thickness of the formable liner is automatically maintained constant. As the height of the manufactured lining increases, the carriage along with the column moves upward due to the opposing forces that occur in the sealing zone of the refractory mass, and as a result of a change in the curvature of the bucket, the curvature of the movable template also changes automatically. After the manufacture of the monolith lining is completed, the drive system is turned on and the column carriage moves to the uppermost position on the supporting column beyond the upper edge of the bucket. Then the movable platform 11 is retracted from the bucket to the initial position under the node 5. The bucket is removed from the swivel bridge table 2 and sent 10 48 for further processing. The manufacture of a monolithic lining with a padding device (compaction of semi-dry masses) ends there. When using device 9 (Fig. 5) for gunning, movable platform 11 is brought to the bucket, and guide 36, together with the carriage 38 and carriage 34, is driven by drive system 33 along the supporting column 32 into the casting ladle with a defined clearance between the nozzle 39 of the gunning machine and the inner wall of the ladle is as follows. A nozzle mounted on the carriage 38 is mounted by a drive system opposite the portion of the lining of the ladle that is to be repaired. From the assembly 5, the gunning mass through the hose 40 connecting the gunning machine with the nozzle 39 is fed to the wall of the bucket. As the layer of gunning mass is applied in accordance with a given mode, the bucket rotates relative to the guide 36. At the same time, the car performs reciprocating movements along the guide and makes it possible to apply the gunning mass to both the walls of the bucket and its bottom. . It is possible to uniformly apply a layer of gunning mass on the bottom and walls of the bucket, which is carried out by simultaneously rotating the bucket from the drive 3 of the turntable 2 and moving the carriage along the guide through the drive system. As the height of the spray gun layer increases, the nozzle 39 moves upward along the guide drive system. After the repair of the bucket lining has been completed by gunning, the drive system is turned on and a bogie-mounted carriage 38. the scrap 39, together with the press branch, rises to the extreme upper position along the support column beyond the upper edge of the bucket, and the movable platform 11 is retracted from the bucket to the initial position. The casting ladle is removed from the turntable by an overhead crane and sent for further processing. At this, the repair of the lining of the steel-teeming ladle is completed by shotcrete. During use of the device for breaking the lining 10 (Fig. 6), the ladle. set on the turntable table. Then, the movable platform 11 is guided to it and, using the drive system A2, the carriage 43 with the swivel boom 45 is lowered into the bucket. Thereafter, the rotary head 47 is driven by the actuator to a position in which the scrap 48 contacts its tip with the inner wall of the lining in the lower part of the end. Then, an exciter 50 is turned on and with a scrap, a hole is punched in the lining of the bucket. After that, the swivel boom 45 with the scrap is retracted from the lining and the bucket is rotated around its axis by means of the actuator 3. The rotary boom with the crowbar is again brought to the adjacent intact lining area, and the whole process is repeated until the monolithic lining along the solid ring at the bottom of the bucket is destroyed.

After that, the boom is fed to the monolithic lining at the top of the bucket and in the same way destroys the lining by (hardness).

Then the swivel head is placed in a position in which the second working tool (roller cutter 49) is centered on the surface of the lining and takes up such a position in which it is pressed against the lower edge of the lining. S The rotation process of the bucket and the included exciter 50 destroy the monolithic lining around the inner circumference of the bucket. As the lining collapses, the boom continuously automatically rises upwards. After the entire lining is destroyed, the swing arm is removed from the bucket, and the movable platform is retracted from the bucket to its original position. Then a bridge crane bucket

It is removed from the turntable and the broken lining is poured out of it. The bucket is ready for the manufacture of lining by pouring, packing or gunning.

Due to the placement of functional devices on a common platform and the location of the working tools of these devices in the immediate area of lining repair, the proposed installation ensures the implementation of a complex of repair work. The installation allows these works to be carried out in a certain technological sequence, for example, breaking a worn lining by pouring - re-consolidation. In addition, the installation allows you to perform repair operations both individually and in combination with them in time. Thus, at the same time as casting is performed, the device can be further consolidated by the device 7.

All this expands the technological capabilities of the installation.

At the same time, the area occupied by the installation will be reduced by 4 times in comparison with the separately standing installations.

Thus, the proposed installation, which is a single unit, is compact.

 In addition, the installation is controlled from a single console, which improves serviceability. Rapid variation by the use and use of various methods and devices for repairing linings of thermal units will ensure their better application and control.

Due to the above, the economic effect from the use of one installation will be 177.3 thousand rubles.

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Claims (1)

REPAIR INSTALLATION FOOT METALLURGICAL TANKS, containing a rotary table for metallurgy