CN216226819U

CN216226819U - Nodular cast iron pouring system with slag avoiding, exhausting and slow flow functions

Info

Publication number: CN216226819U
Application number: CN202122524529.1U
Authority: CN
Inventors: 孙袁; 倪炳华
Original assignee: TONGXIANG HEDE MACHINERY CO Ltd
Current assignee: TONGXIANG HEDE MACHINERY CO Ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-04-08
Anticipated expiration: 2031-10-18

Abstract

The utility model discloses a nodular cast iron pouring system with slag avoiding, exhausting and slow flow functions, and relates to the technical field of pouring systems; the device comprises a pouring cup, a ladle, a sprue, a cross gate, a first slag collecting buffer bag, an air outlet needle, a branch gate, a second slag collecting buffer bag, an air outlet needle and an inner gate, wherein the first slag collecting buffer bag, the air outlet needle, the branch gate, the second slag collecting buffer bag, the inner gate and the second slag collecting buffer bag are positioned at two ends of the cross gate; a buffer groove used for buffering molten iron entering the cross pouring channel from the sprue is arranged at the lower side of the cross pouring channel; the upper end of the sprue is provided with a self-melting steel plate; the middle part of the branch pouring channel protrudes upwards to form a slow flow package, the inner pouring channel corresponds to the slow flow package in position, and a filter screen is arranged between the inner pouring channel and the branch pouring channel; the cross section area of the sprue is A, and the utility model has the functions of slag avoidance, air exhaust and slow flow.

Description

Nodular cast iron pouring system with slag avoiding, exhausting and slow flow functions

Technical Field

The utility model belongs to the technical field of pouring systems, and particularly relates to a nodular cast iron pouring system with slag avoiding, exhausting and slow-flow functions.

Background

A common pouring system adopts a common funnel pouring cup (the defects are easy to enclose, the pressure head is low, and the funnel pouring cup is easy to wash), and the pouring system has no functions of slag avoidance, air exhaust and slow flow. Slag holes are easy to generate or blanking is slow, and molten iron oxidation is easy to generate.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provides a ductile cast iron pouring system with functions of slag avoiding, air exhausting and slow flow.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a nodular cast iron pouring system with slag avoiding, exhausting and flow slowing functions comprises a pouring cup, a ladle for inputting molten iron into the pouring cup, a sprue, a cross runner, a first slag collecting buffer bag, a gas outlet needle, a plurality of branch runners, a second slag collecting buffer bag, a gas outlet needle and an inner runner, wherein the upper end of the sprue is connected with the bottom of the pouring cup; a buffer groove used for buffering molten iron entering the cross pouring channel from the sprue is arranged at the lower side of the cross pouring channel; the upper end of the sprue is provided with a self-melting steel plate; the middle part of the branch pouring channel protrudes upwards to form a slow flow package, the inner pouring channel corresponds to the slow flow package in position, and a filter screen is arranged between the inner pouring channel and the branch pouring channel; the cross-sectional area of the sprue is A, the sprue divides the cross gate into a left runner and a right runner, the sum of the cross-sectional areas of the left runner and the right runner is B, the sum of the cross-sectional areas of all the branch runners is C, the sum of the cross-sectional areas of all the inner runners is D, A, B, C, D is gradually increased, and the positions of the ladle mouths of the ladles and the upper end of the sprue are staggered.

Preferably, the bottom of the pouring cup is provided with refractory bricks, and the refractory bricks correspond to the ladle in position.

Preferably, the inner wall of the inner pouring channel close to one end of the branch pouring channel is provided with an annular groove for rectification, and the cross-sectional area of the annular groove is gradually reduced from top to bottom.

Preferably, the branch runners are arranged uniformly along the cross runner.

Preferably, the material of the filter screen is honeycomb ceramics.

Preferably, a: B: C: D =1:1.25:1.5: 2.

Preferably, the number of branch runners on the left runner is equal to the number of branch runners on the right runner.

The utility model has the beneficial effects that: molten iron comes out from the ladle, pour into the pouring cup, resistant firebrick receives the molten iron impact, play the effect of buffering, the molten iron gets into the runner from the sprue, part sediment in the molten iron can be rushed to the first sediment buffering package that gathers of runner tip in, then the molten iron gets into and divides the runner, when the molten iron moved to the buffering package, because the cross section grow, the velocity of flow slows down, play the effect of slow flow, part sediment can be rushed to the second sediment buffering package that gathers, then the molten iron is through the filtration back of filter screen, clean molten iron gets into the ingate, at last to the die cavity in the shaping of pouring. A. B, C, D, which is gradually increased, acts as a buffer. The air outlet needle has the function of exhausting air.

Drawings

FIG. 1 is a schematic diagram of an embodiment;

FIG. 2 is a front view of the embodiment;

fig. 3 is a side view of the embodiment.

In the figure: the device comprises a pouring cup 1, a ladle 2, a sprue 3, a cross runner 4, a first slag collecting buffer ladle 5, an air outlet needle 6, a branch runner 7, a second slag collecting buffer ladle 8, a buffer tank 10, a slow flow ladle 11, a ladle nozzle 12, a filter screen 13, refractory bricks 14, a self-fluxing steel plate 15 and an inner runner 16.

Detailed Description

The utility model is explained in further detail below with reference to the figures and the detailed description:

example (b):

referring to fig. 1 to 3, a nodular cast iron pouring system with slag avoiding, exhausting and slow flow functions comprises a pouring cup 1, a ladle 2 for inputting molten iron into the pouring cup 1, a sprue 3 connected with the upper end and the bottom of the pouring cup 1, a runner 4 connected with the sprue 3 at the middle part, first slag collecting buffer packs 5 positioned at two ends of the runner 4, gas outlet needles 6 positioned at the upper side of the first slag collecting buffer packs 5, a plurality of branch runners 7 connected with the sprue 4, second slag collecting buffer packs 8 positioned at the ends of the branch runners 7 far away from the sprue 4, gas outlet needles 6 positioned at the upper sides of the second slag collecting buffer packs 8 and an inner runner 16 connected with the branch runners 7;

a buffer groove 10 for buffering molten iron entering the cross gate 4 from the sprue 3 is arranged at the lower side of the cross gate 4;

the upper end of the sprue 3 is provided with a self-melting steel plate 15;

the middle part of the branch pouring channel 7 protrudes upwards to form a slow flow packet 11, the inner pouring channel 16 corresponds to the slow flow packet 11 in position, and a filter screen 13 is arranged between the inner pouring channel 16 and the branch pouring channel 7;

the cross section area of the sprue 3 is A, the sprue 3 divides the cross gate 4 into a left runner and a right runner, the sum of the cross section areas of the left runner and the right runner is B, the sum of the cross section areas of all the branch runners 7 is C, the sum of the cross section areas of all the inner runners 16 is D, A, B, C, D is gradually increased, and the positions of the ladle nozzle 12 of the ladle 2 and the upper end of the sprue 3 are staggered. A: B: C: D =1:1.25:1.5: 2.

The bottom of the pouring cup 1 is provided with a refractory brick 14, and the refractory brick 14 corresponds to the ladle 2 in position.

The inner wall of the ingate 16 near one end of the branch gate 7 is provided with a circular groove for rectifying, and the cross-sectional area of the circular groove is gradually reduced from top to bottom.

The branch runners 7 are arranged uniformly along the cross runners 4.

The material of the filter screen 13 is honeycomb ceramics.

The number of branch runners 7 on the left runner is equal to the number of branch runners 7 on the right runner.

Principle of embodiment:

molten iron comes out from the ladle, pour into pouring cup 1, resistant firebrick 14 receives the molten iron impact, play the effect of buffering, after pouring cup 1 is full, from melting steel sheet 15 melting, the molten iron gets into runner 4 from sprue 3, part sediment in the molten iron can be by being washed in the first album of sediment buffering package 5 of runner 4 tip, then the molten iron gets into branch runner 7, when the molten iron moves to slow flow package 11, because the cross section grow, the velocity of flow slows down, play the effect of slow flow, part sediment can be by being washed in the second album of sediment buffering package 8, then the molten iron passes through the filtration back of filter screen, clear molten iron gets into ingate 16, at last pouring into the die cavity and shaping. A. B, C, D, which is gradually increased, acts as a buffer. The air outlet needle has the function of exhausting air.

Claims

1. A nodular cast iron pouring system with the functions of avoiding slag, exhausting and slowing flow is characterized by comprising a pouring cup, a ladle for inputting molten iron into the pouring cup, a sprue, a cross runner, a first slag collecting buffer bag, a gas outlet needle, a plurality of branch runners, a second slag collecting buffer bag, a gas outlet needle and an inner runner, wherein the upper end of the sprue is connected with the bottom of the pouring cup;

a buffer groove used for buffering molten iron entering the cross pouring channel from the sprue is arranged at the lower side of the cross pouring channel;

the upper end of the sprue is provided with a self-melting steel plate;

the middle part of the branch pouring channel protrudes upwards to form a slow flow package, the inner pouring channel corresponds to the slow flow package in position, and a filter screen is arranged between the inner pouring channel and the branch pouring channel;

the cross-sectional area of the sprue is A, the sprue divides the cross gate into a left runner and a right runner, the sum of the cross-sectional areas of the left runner and the right runner is B, the sum of the cross-sectional areas of all the branch runners is C, the sum of the cross-sectional areas of all the inner runners is D, A, B, C, D is gradually increased, and the positions of the ladle mouths of the ladles and the upper end of the sprue are staggered.

2. The system of claim 1, wherein the bottom of the pouring cup is provided with refractory bricks corresponding to the ladle.

3. The system of claim 2, wherein the inner wall of the ingate near the branch runner is provided with an annular groove for rectification, and the cross-sectional area of the annular groove is gradually reduced from top to bottom.

4. The system for pouring ductile iron with slag avoiding, air exhausting and flow slowing functions as claimed in claim 3, wherein the branch runners are uniformly arranged along the cross runner.

5. The system of claim 1, wherein the screen is made of a honeycomb ceramic.

6. The system for pouring ductile cast iron with slag avoiding, air exhausting and slow flow functions as claimed in claim 1, wherein A: B: C: D =1:1.25:1.5: 2.

7. The system of claim 1, wherein the number of branch runners on the left runner is equal to the number of branch runners on the right runner.