SU996443A1 - Receiving hopper of loading apparatus of blast furnace - Google Patents

Description

FIELD OF THE INVENTION The invention relates to ferrous metallurgy, in particular, to equipment for loading blast furnaces.

Closest to the invention to the technical essence and the achieved result is a receiving funnel, comprising a housing with internal charge dividers and outlet windows located inside, elements parallel to the walls of the housing can be rotated around horizontal axes to contact the walls of the splitter, blocking the exhaust ports Cl.

The disadvantage of this funnel is the laboriousness of its manufacture and installation. Permanently installed inclined bottoms inside the frame do not allow their angle of inclination to the horizontal when adjusting and setting-. ke on a blast furnace, ime tsuy other vysotnyge sizes.

The aim of the invention is to reduce the laboriousness of the manufacture, installation and adjustment of the receiving hopper to improve the quality of loading and distribution of the charge materials on furnaces with different heights or sizes.

The goal is achieved by the fact that in a receiving funnel containing a

From the cylindrical and conical parts of the case, inside which are horizontal and vertical dividers of the charge with elements of overlapping exhaust windows, the vertical dividers are provided with a groove made with an additional outlet window in the side wall located on both sides of the wall of the divider and mounted 10 relative to the wall.

FIG. Figure 1 shows the receiving pipe, general (| side view, sectional view; in Fig. 2, this is the e, plan view. (Conditionally removed kg); in Fig. 3, a groove with a window in the side wall with holes for fastening to the wall of the vertical divider (arrow - the direction of movement of the charge materials).

20

The funnel contains casing 1, made in the form of a composite cylinder with a conical bottom of the wall 2 of a vertical divider, inclined bottoms of the gutter 3. Case 1 on top is covered with a roof plate

25 which 4. The chute 3 is made with a window 5 in the side wall to change the direction of movement of the charge materials.

The walls 2 of the vertical divider are located on the top of the furnace along the axes

Claims (2)

30 railway ways skip hoist. On the left and right of the walls 2 in the plan, with the possibility of moving, are installed the gutters 3, The width of the two gutters you: filled no less than the width of the skip. The movement of the grooves is possible along the horizon and vertical with respect to the vertical divider, and with it when setting up for a qualitative distribution of materials around the circumference. When moving the gutters vertically, one obtains the necessary tilt while searching. All troughs 3 are made the same and are interchangeable. Windows 5 sameLobov 3 adjacent to the walls 2 of the vertical divider. One receiving funnel contains four gutters, but with a significant increase in diameter, their number can be changed. In the present embodiment, two troughs for the left and two troughs for the right skips are installed. Reception funnel works as follows. The mixture alternately from the left and right skis unloads onto inclined channels 3, fixed on both sides of two walls 2 of the vertical divider. The charge materials from one skip are divided by a vertical divider into two equal streams. One stream falls on one trough, and the second stream goes on another trough. Due to the fact that the direction of the bottoms of the mounted troughs is opposite to each other, the charge materials are pushed in opposite directions: The direction of flow of the charge moving along the left chute is curved toward the axis of the blast furnace, since the window 5 is adjacent to the wall 2. Another stream moving simultaneously along the right chute, distorts its direction from the axis. Thus, the loaded charge from one skip has two ridge tops which are located at an angle of 90 to each other. the circumference in the horizontal area, under the coal and under the coal 90 ° to each arc in plan. The conical bottom of the receiving hopper also contributes to the uniform distribution of the materials. Due to the fact that the troughs are made the same, their manufacture, installation, repair and adjustment is less laborious compared to the known construction, the proposed technical solution allows for the production of the same type trench 3; small in size and weight, to reconstruct the receiving funnels of a typical boot device. Reconstruction of the receiving funnels improves the technological characteristics of the charge distributor in part-; higher quality distribution of materials around the circumference. The transfer time of the loading devices to an improved funnel design is significantly reduced. Production of the gutter is possible under the conditions of the repair base of the metallurgical plant. Econo and funds are obtained for - by reducing the metal intensity / labor intensity of manufacturing, installing, adjusting and improving the quality of the distribution of the charge around the circumference of the blast furnace. Annual economic effect from the use of the proposed reception. funnels, compared with the known cor, place about 200.0 thousand rubles on a single blast furnace with a volume of 2000 m. Claims of the invention The receiving funnel of the blast furnace charging device, containing -. the shell consisting of cylindrical and conical parts, inside of which are horizontal and vertical dividers of the charge with the elements blocking the exhaust ports, so that in order to reduce the cost of its manufacture and installation and quality improvement batch loading, each vertical divider on both sides is equipped with a directional loading chute moving along it, and an additional outlet window is made in the side wall of the chute, which is attached to the divider. Sources of information taken into account in the examination 1. USSR author's certificate 913735, cl. From 21 to 7/18, 1978.