CN2070212U

CN2070212U - Curved radiant down feeding bottom plate for steelmaking

Info

Publication number: CN2070212U
Application number: CN 90207977
Authority: CN
Inventors: 魏庭树
Original assignee: Handan Iron & Steel General Works
Current assignee: Handan Iron & Steel General Works
Priority date: 1990-05-31
Filing date: 1990-05-31
Publication date: 1991-01-30

Abstract

The utility model relates to a feeding bottom plate for steel making die injection. The trend of brick grooves on an upper gate runner of the bottom plate adopts a curved radiant shape using six brick grooves as a group. According to the number of cast steel and the size of an ingot type, more than one group (including one group) of brick grooves in a curved radiant shape on the upper gate runner can be arranged on the bottom plate, and each brick groove in a curved radiant shape on the upper gate runner is provided with a central deflecting brick groove. Defects existing in the existing feeding bottom plates are overcome by using the feeding bottom plate of the utility model. The utility model improves the ingot forming rate, improves the quality of the cast steel, reduces production accidents, and reduces the consumption of steel materials. The utility model is especially suitable for casting small steel ingots.

Description

A kind of steel-making is with the curved radiation base plate of making a bet

The utility model relates to a kind of pouring in steel smelting equipment, specifically is that a kind of steel-making mould is annotated with the base plate of making a bet.

The trend that current steel-making mould is annotated with runner brick groove on the base plate of making a bet mainly contains dendriform and radiation two classes (Fig. 1), and at the base plate center deflecting block groove is only arranged.

The make a bet ingot mould center of base plate of radiation all is in the garden of same radius on week, all be under the identical pouring condition with each ingot of dish, soup road resistance is little, help reaching the ingot quality uniformity, but the base plate of this shape, the number of every dish cast can not be too much, can not put in order secondary pendulum mould, the demoulding, waste man-hour, and production efficiency is low.

The dendriform base plate of making a bet can be poured into a mould the steel ingot of more number, can put in order secondary pendulum mould, the demoulding, saving man-hour, production efficiency height.But the base plate soup road resistance of this shape is big, annotates speed steel ingot slow, that have in producing and occurs reclosing (double teeming) easily and sink, and " blind " (do not go up and prop up) appears in the ingot position that has, the ingot site surface that has is of poor quality, cause that to water surplus too much, become the ingot rate low, iron and steel stock consumes high.Especially after China's steel-making mould was annotated and generally adopted " Trinity " and slide gate nozzle pouring technology, problem was more outstanding.

The radiation base plate is used in the cast of large steel ingot, alloy steel ingot more, and little steel ingot generally all adopts the dendriform base plate.

The purpose of this utility model, just being provides a kind of novel base plate of making a bet for pouring into a mould little steel ingot, makes its advantage that had both had above-mentioned two kinds of base plates, overcomes the deficiency that they exist simultaneously.

The utility model is to realize like this, in design on the base plate of making a bet the curved radiation runner brick groove that (comprises a group) more than a group is arranged, in each group four curved radiations and two straight actiniform runner brick grooves are arranged, straight radiation runner brick groove is in the centre, its both sides respectively have a curved radiation runner brick groove symmetrically, at the joint place of six runner brick grooves (radiation initial point) a deflecting block groove is set, the group number of curved radiation brick groove on the base plate can be selected according to the size of the number that waters steel ingot what and ingot shape.

Use the curved radiation base plate of making a bet to carry out pouring molten steel, soup road resistance is little, can pour into a mould many ingots, can put in order secondary pendulum mould, the demoulding, save man-hour, enhance productivity, overcome the dendriform various quality problems that base plate occurred aborning of making a bet, reduce and water surplus, improve into the ingot rate, reduce iron and steel stock consumption.

The utility model is described in further detail below in conjunction with drawings and Examples, Fig. 1 for the dendriform of prior art (Fig. 1 a) and radiation (Fig. 1 b) base plate of making a bet, among Fig. 1 a, 1-base plate, 2,3-runner brick groove, 4-deflecting block groove.

Fig. 2, Fig. 3, Fig. 4 are the utility model accompanying drawing.

Fig. 2 is the curved radiation of the plate single tube base plate schematic diagram (base plate, a deflecting block groove) of making a bet

Fig. 3 is the two-tube curved radiation of the plate base plate schematic diagram (base plate, two deflecting block grooves) of making a bet

Fig. 4 is the curved radiation of a plate three pipe base plate schematic diagram (base plate, three deflecting block grooves) of making a bet

In Fig. 2, Fig. 3, Fig. 4,1-base plate, 2-runner brick groove, 3-deflecting block groove.

Fig. 3 keeps the make a bet size of base plate of the employed dendriform of the little steel ingot of cast, the base plate of making a bet that improvement is designed to two groups of curved radiation brick grooves and two deflecting block grooves, be applied to the steel mill mould and annotate the workshop, pour into a mould little steel ingot (11 inch, ingot weighs 650 kilograms) 36 (base plates of making a bet of this shape of every dish ingot figure place, be fit to cast 9-11 inch ingot, every dish ingot figure place 36-48 position), only need the threeway brick that uses on the original base plate, turn brick about changing into, change anistree four hole deflecting blocks into anistree six hole deflecting blocks, other all utilize the workshop existing equipment, with use the dendriform base plate cast of making a bet and compare, obtained good effect, become the ingot rate to improve 15%, accident (short ingot, melt down, " blind ", badly bleeding etc.) reduce by 40%, the original qualification rate of steel ingot improves 1-2%, and the original qualification rate of surface of steel ingot improves 5%.

According to number what and the ingot shape size of cast steel ingot, the group number of bending radiation runner brick groove on base plate also can be designed to one group (Fig. 2) and three groups (Fig. 4), and Fig. 2, Fig. 3, the base plate of making a bet shown in Figure 4 can be independent, also combinable use.

To the dendriform of the original use base plate of making a bet, can take to expire and be replaced by the make a bet way of base plate of curved radiation gradually, do not need to increase in addition investment.

Claims

1, a kind of steel-making with runner brick groove is with the curved radiation base plate of making a bet, it is characterized in that six one group curved radiation runner brick groove is arranged on the base plate, in each group four curved radiations and two straight actiniform runner brick grooves are arranged, straight radiation runner brick groove is in the centre, its both sides respectively have a curved radiation runner brick groove symmetrically, at the joint place of six radiation runner brick grooves (radiation initial point) a deflecting block groove are arranged.