CN102078959B

CN102078959B - Method for preventing overflow generated in artificial lead and calcium alloy pouring process and device thereof

Info

Publication number: CN102078959B
Application number: CN201010594796XA
Authority: CN
Inventors: 严宏志; 魏文武; 李新明; 马凡凯; 韩峰林; 何岳峰; 刘明
Original assignee: Central South University; Zhuzhou Smelter Group Co Ltd
Current assignee: Central South University; Zhuzhou Smelter Group Co Ltd
Priority date: 2010-12-17
Filing date: 2010-12-17
Publication date: 2012-08-15
Anticipated expiration: 2030-12-17
Also published as: CN102078959A

Abstract

The invention discloses a method for preventing overflow generated in an artificial lead and calcium alloy pouring process and a device thereof. A plug rod (12) capable of plugging or opening an outlet of a middle pouring basket (7) is arranged on the middle pouring basket (7). During pouring, a start position switch (13) is triggered manually; a control system controls a plug rod driving device to drive the plug rod (12) to move upwards to open the outlet of the middle pouring basket (7); a pouring pipe (10) starts to pour from a start pouring die (1); when the pouring pipe pours to a final pouring die (3), a final position switch (14) is triggered manually; the control system controls the plug rod driving device to drive the plug rod (12) to move downwards to close the outlet of the middle pouring basket (7); and the pouring pipe (10) is manually held to return to the start pouring die (1), so that a melt is prevented from overflowing from a pouring ladle (9) in a returning process. By the method, the melt is prevented from overflowing from the pouring ladle in the pouring process and the returning process and basically stable pouring flow rate is ensured.

Description

Prevent to produce in the artificial lead-calcium alloy casting process method and the device thereof of overflow

Technical field

The present invention relates to a kind of method and device thereof that prevents to produce in the artificial lead-calcium alloy casting process overflow.

Technical background

Manual type (like Fig. 1) is adopted in the casting of present domestic lead-calcium alloy ingot casting, Melt Pump 5 melt conveying in tundish 7 continuously in the casting process, and melts also continue to flow toward pouring ladle 9 in the tundish 7; Be poured into end when watering mold 3; The workman lifts gate spool 10 to get back to and begins to water mold 1, overflows watering mold 3 melt of pouring ladle 9 to the process that begins to water mold 1 from end, causes that alloy melts down, scaling loss and energy loss; Simultaneously owing to return when beginning to water mold 1 watering mold 3 from end; Overflow in order to reduce alloy, the workman all needs fast return, in this process, be prone to the generation personnel fall down, injured.

Summary of the invention

First technical problem to be solved by this invention provides and a kind ofly prevents that melt overflows in cast and the return course from pouring ladle, guarantees the basicly stable method that prevents generation overflow in the artificial lead-calcium alloy casting process of cast flow.

Second technical problem to be solved by this invention provides a kind of device of realizing this method.

In order to solve above-mentioned first technical problem, the method that prevents to produce in the artificial lead-calcium alloy casting process overflow provided by the invention, the stopper rod of installation one band conehead on tundish; Stopper rod drives the head piece that goes out that tundish could blocked or open to its keying by the stopper rod drive unit; Starting end position watering die case is provided with the starting position switch, is provided with last position at the clearing end place of watering die case and puts switch, and the control system puts switch with stopper rod drive unit, starting position switch and last position and is electrically connected; The artificial starting position switch that touches during cast; Control system control stopper rod drive unit drives the head piece that of the up unlatching tundish of stopper rod, and depositing begins cast from beginning to water mold, when mold is watered at end; The artificial last position of touching is put switch; Control system control stopper rod drive unit drives the descending head piece that goes out of cutting out tundish of stopper rod, and manual work is controlled depositing and got back to and begin to water mold, ensures that thus return course can overflow from pouring ladle.

Watering control system control Melt Pump the casting process of mold to end with a higher frequency operation from beginning to water mold; And water mold to beginning to water the nothing cast return course of mold from end; Control system control Melt Pump is with a lower frequency operation or stop the operation of Melt Pump, keeps the liquid level of tundish basicly stable.

In order to solve above-mentioned second technical problem; Realization provided by the invention prevents to produce in the artificial lead-calcium alloy casting process device of the method for overflow; Comprise tundish, water die case and Melt Pump; The stopper rod of one band conehead is installed on described tundish, and described stopper rod drives the head piece that goes out that tundish could blocked or open to its keying by the stopper rod drive unit, is provided with the starting position switch in the starting end position of watering die case; Be provided with last position in the clearing end position of watering die case and put switch, the control system puts switch with described stopper rod drive unit, starting position switch and last position and is electrically connected.

Described control system is electrically connected with described Melt Pump.

Described stopper rod drive unit is the cylinder that is in transmission connection with described stopper rod.

Adopt the method that prevents to produce in the artificial lead-calcium alloy casting process overflow of technique scheme, the control system is made up of hardware such as PLC, blasters, has functions such as control cylinder unlatching, Melt Pump converting operation.

This characteristic feature of an invention:

1, prevent the melt overflow of lead-calcium alloy production process, improve production efficiency and product quality reduces energy consumption;

2, the cast flow is adjustable, the needs of applicable different operating custom and product specification;

3, ensure that melt level is basicly stable in the tundish, make the cast flow keep stable thus.

In sum, the present invention a kind ofly prevents that melt overflows in cast and the return course from pouring ladle, guarantee the basicly stable method and the device thereof that prevent generation overflow in the artificial lead-calcium alloy casting process of cast flow.

Description of drawings

Fig. 1 is the artificial cast of a lead-calcium alloy sketch map;

Fig. 2 is the lead-calcium alloy running gate system sketch map that prevents overflow.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described further.

Referring to Fig. 2, Melt Pump 5 imports are connected with feed tube 6, and Melt Pump 5 outlets are provided with outflow tube 4 and dock with tundish 7; Tundish 7 is installed on the tundish support 8; The stopper rod 12 of one band conehead is installed on tundish 7, and stopper rod 12 drives with cylinder 11 and is connected, and cylinder 11 drives stopper rod 12 and opens and closes the head piece that goes out that can block or open tundish 7; The head piece that goes out of tundish 7 is connected with pouring ladle 9; Pouring ladle 9 is connected with depositing 10, waters die case 15 and is provided with and comprises and begin to water that mold 1, centre water mold 2, a plurality of molds that water of mold 3 are watered at the end, are provided with starting position switch 13 in the starting end position of watering die case 15; Be provided with last position in the clearing end position of watering die case 15 and put switch 14, switch 14 is put with cylinder 11, starting position switch 13 and last position by the control system and Melt Pump 5 is electrically connected.

Operation principle of the present invention:

As shown in Figure 2, the stopper rod 12 of installation one band conehead on tundish 7, stopper rod 12 drives it by cylinder 11 and opens and closes, and the Lift of stopper rod 12 is definite by the displacement of cylinder 11 pistons, thus the needs of the different cast of adaptation flows.The displacement of the piston of cylinder 11 can be passed through method controls such as mechanical position limitation, the selection of cylinder stroke.

The principle that prevents casting process generation overflow is following: the artificial starting position switch 13 that touches; Lift, open stopper rod 12 on control system control cylinder 11 pistons, depositing 10 begins cast from beginning to water mold 1, when mold 3 is watered at end; The artificial last position of touching is put switch 14; Control system control cylinder 11 pistons-stopper rod are 12 descending, close tundish 7 goes out head piece, and manual work is controlled depositing 10 and got back to the cast starting position--and begin to water mold 1, ensured that thus return course can overflow from pouring ladle 9.The said process circulation is carried out.

Watering control system control Melt Pump 5 casting process of mold 3 to end with a higher frequency operation from beginning to water mold 1; And water mold 3 from end to beginning to water the nothing cast return course of mold 1, control system control Melt Pump 5 is with a lower frequency operation or stop the operation of Melt Pump 5.Keep the liquid level of tundish 7 basicly stable.

The control system is made up of hardware such as PLC, blasters, has functions such as control cylinder 11 unlatchings, Melt Pump 5 converting operations.

This characteristic feature of an invention:

Claims

1. method that prevents in the artificial lead-calcium alloy casting process to produce overflow; It is characterized in that: go up the stopper rod (12) that a band conehead is installed at tundish (7); Stopper rod (12) drives the head piece that goes out that tundish (7) could blocked or open to its keying by the stopper rod drive unit; Be provided with starting position switch (13) in the starting end position of watering die case (15), be provided with last position at the clearing end place of watering die case (15) and put switch (14), the control system puts switch (14) with stopper rod drive unit, starting position switch (13) and last position and is electrically connected; The artificial starting position switch (13) that touches during cast; Control system control stopper rod drive unit drives the head piece that of stopper rod (12) up unlatching tundish (7), and depositing (10) begins cast from beginning to water mold (1), when mold (3) is watered at end; The artificial last position of touching is put switch (14); Control system control stopper rod drive unit drives the descending head piece that goes out of cutting out tundish (7) of stopper rod (12), and manual work is controlled depositing (10) and got back to and begin to water mold (1), ensures that thus return course can overflow from pouring ladle (9).

2. the method that prevents to produce in the artificial lead-calcium alloy casting process overflow according to claim 1; It is characterized in that: watering control system control Melt Pump (5) the casting process of mold (3) to end with a higher frequency operation from beginning to water mold (1); And water mold (3) to beginning to water the nothing cast return course of mold (1) from end; Control system control Melt Pump (5) is moved with a lower frequency or is stopped the operation of Melt Pump (5), keeps the liquid level of tundish (7) basicly stable.

3. realize the described device that prevents to produce in the artificial lead-calcium alloy casting process method of overflow of claim 1; Comprise tundish (7), water die case (15) and Melt Pump (5); It is characterized in that: go up the stopper rod (12) that a band conehead is installed at described tundish (7); Described stopper rod (12) drives the head piece that goes out that tundish (7) could blocked or open to its keying by the stopper rod drive unit; Be provided with starting position switch (13) in the starting end position of watering die case (15), be provided with last position in the clearing end position of watering die case (15) and put switch (14), the control system puts switch (14) with described stopper rod drive unit, starting position switch (13) and last position and is electrically connected.

4. realization according to claim 3 prevents in the artificial lead-calcium alloy casting process to produce the device of the method for overflow, it is characterized in that: described control system is electrically connected with described Melt Pump (5).

5. prevent to produce in the artificial lead-calcium alloy casting process device of the method for overflow according to claim 3 or 4 described realizations, it is characterized in that: described stopper rod drive unit is the cylinder (11) that is in transmission connection with described stopper rod (12).