SU1117437A1 - Device for metallurgical furnace rear wall fitting - Google Patents

Abstract

A device for filling the rear wall of the metallurgical furnace, comprising a housing, a rotor with blades and an engine, characterized in that, in order to reduce the consumption of filling materials, improve the quality of the work and the working conditions, the rotor is installed outside the housing and is designed as a hollow truncated cone with the blades are located at an angle of 3-14 °. to the line forming a cone, while the engine is placed inside the housing. 2. A device according to claim 1, characterized in that the body is made water-cooled and provided with a mold lock, and the number of rotors is two.

Description

4 WITH

This invention relates to ferrous metallurgy, namely, equipment for the repair of lining of metallurgical furnaces. A device for charging metallurgical furnaces is known, which contains a bunker, a feeder and a belt casting mechanism 1.

The disadvantages of this device are the presence of a bulky storage bin for the filling material, the poor quality of the filling caused by the use of cold filling material, the dispersion of the material due to the vibration of the tape, the low resistance of the tape.

The closest to the invention to the technical essence and the achieved results is a device for charging metallurgical furnaces, comprising a housing, a rotor with blades mounted inside the housing, and an electric motor 2j.

The disadvantages of the known device are the significant consumption of the filling material, the low quality of the filling due to the use of cold filling material, the unsatisfactory working conditions of steelworkers when operating the device. .. ,,

The aim of the invention is to reduce the consumption of filling materials, to improve the quality of filling and working conditions. The goal is achieved by the fact that in the device, the rear wall of a metallurgical furnace containing a core, a rotor with blades and an engine, the rotor is mounted outside the body and made 3; 1 ”of a hollow cone with the blades arranged at an angle of 3–14 ° to the line forming cone, while the engine is placed inside the housing.

In addition, the casing is made of water-cooled and equipped with a mold lock, and the number of rotors is two.

FIG. I shows the proposed device; in fig. 2 - section A - A in FIG. one; ka fig. 3 — front view;

The device includes a housing that is discharged in the hell of a cylinder 3, with upper and lower water 2 for supplying and discharging water and equipped with a multifunction lock 3 rigidly connected to the cylinder with rods 4. Inside the cylinder 1 there is a 5 direct current electric motor 5 placed 3 watering casing 6. On the axis 7 of the electrode 5, derived from chi, / I1ND .. pa 1, one ILR has two hollow rotors 8 strengthened. The rotor 8 is made in the form of a truncated cone and has a lateral surface of a rotate- rot 9, the loads of 10 at an angular side are located at an angle of 3 f to line forming a cone.

Spreading the rotor outside the hull and strengthening the foreheads on the BHesaiiefi side of the noBcpx.-iocT rotor section allows you to grab and throw loosely lying material, such as spent dolomite of false thresholds, Electric motor fixation

inside

jacket J is provided with welded clamps H and stop screws 12, equipped with apertured gaskets. The electric cable 13 for casting twin cable 5 is led out through the side flange 14 of the housing 6 and the side window 15 of the cylinder through a metal tube 16 with a thread. A turnkey head is attached to the side flange 14. The side window 15 has a cover 17 through which the tube 10 passes. The cover 7 is tilted to the cylinder 1 by screw fastening 18. A double wrench 9–20 with a rubber gasket seals; the output of the metal tube is fixed. In addition, the place of attachment of the tube b to the flange Iir, the cover 17 to the side window. 15 have rubber seals.

An asbestos-coated hose 21 connects the badge cable from the electric motor to the junction box connector}; 22, which is idle by the lid 23. The lid 23 of the asbestos hose is attached to the distribution box from the distribution box with spring .Ji..KHMa 24.

The waterproof casing 6 has end faces; 1,; esn gry1nki 25. The outer cylinder also has end face screw caps 26.

The bottom side of the cover 26 rests on the inner cover 25 and has a slotted seal in place of the joint. In addition, proreziyonkie y. Razkhodneni max in masts fasteners covers 25 and 26, corresponding to the housing 6 and cylinder I.

Inside the lid 26, there is a sleeve 28 with a wrench. The inner surface of the sleeve 28 is fixed with KOJJbua tapered bearings 29 and 30. The inner ring of the bearing 29 is pressed on the axis 7 of the denggtelg, and Bq; the morning ring of the subgroup 6G - on the OSh; The space between the bearings is filled with smg; For the first-aid episode; and qacsHJi for refueling material about podskhkpkkk; the rotor 8 has a precaution;) H | 5 body lug 3 on the circumference.

Cylinder 1 k.1 eet with the lower c / iopoHfci lower guides 32, located CH 5 with 0.5; zdina jigata in the middle (to provide ms-to coolant) Casing 6 has; a locking spyback 33, which is inserted into the power of 32 Iipv electric motor installation-a 5c with a casing b b cl .; indre I. At the same time, the casing 6 is supported by n. 1 decals | : 32, and the retainer prevents the possibility of rotation of the engine 5 with the casing 6 relative to cylinder i. For latch 33 corresponds to the length of the support guides 32. The device operates in the following manner. Before filling the back wall of his put on the trunk of the sealer machine pas. The hoses 2 secure the water supply hoses to the water cooling system, and also connect the electrical cable from the charging machine. Using a charging machine, the device is introduced into the window opening 34 and after switching on the electric drive is lowered onto the surface of the false threshold 35. Dolomite of the false threshold 35 is picked up by the rotating blades 10, and flow 36 is directed towards the rear wall and slopes 27 of the furnace for their refueling. Depending on the specific shape of the false threshold profile, the filling material is n-controlled either horizontally or at an angle to the horizon. As the false threshold dolomite is used, the device is gradually lowered by a charging machine, with new portions of the filling material being captured and directed to the back wall of the furnace. If it is necessary to more fully use the filling material from the bulk mass of the false threshold, the device can be moved to the right - left and forward and backward along the area of the window opening with the help of a charging mask. The range of the noviera trajectory of the alphabetic material is controlled by changing the rotational speed of the DC electric motor 5 from the cabin of the charging machine. When it is necessary to refill the back wall sections of the furnace, located opposite the window joinery, the device, with the help of a turning mechanism, rotates right or left by an angle of up to 10 ° (at the discretion, the operator of the charging machine), which allows you to direct the filling material to the necessary parts of the furnace . Compared to the known devices, the proposed device has the following main advantages: using dummy dolomite as a refueling pack for false thresholds, which are usually dumped in dumps, which will save an average of 1.8-2.2 tonnes of burnt dolomite during each melt; a decrease in the cooling of the rear wall of the kiln by an average of 120 ° when refueling due to the use of heated refinishing material; Improving the quality of refueling with hot filling material, since its sintering with hot laying lecchi is higher than when using cold dolomite from a special bunker; simplifying the design of the device, in which there is no bulky bunker for storage of dolomite, as well as fast-running tape drives; . improvement of operating conditions of the engine having a cooled one. easing the working conditions of steelworkers. Since the filling is carried out remotely, using a charging machine, there is no need for the steelmaker to be directly at the open windows of the furnace. The expected economic effect is about 80 thousand rubles. per year for one open-hearth furnace.

Claims (2)

1. DEVICE FOR FILLING THE REAR WALL OF A METALLURGICAL FURNACE, comprising a housing, a rotor with blades and an engine, characterized in that, in order to reduce the consumption of refueling materials, improve the quality of the harness and working conditions, the rotor is installed outside the housing and is made in the form of a hollow truncated cone with the location of the blades at an angle of 3-14 ° to the line of the generatrix of the cone, while the engine is placed inside the housing. 2. The device according to π. 1, characterized in that the housing is made water-cooled and equipped with a mold lock, and the number of rotors is equal to two. C * S ω s> i