CN1208154C - Equipment for producing cast iron pipe using horizontal continuous casting method and technology of producing cast iron pipe - Google Patents
Equipment for producing cast iron pipe using horizontal continuous casting method and technology of producing cast iron pipe Download PDFInfo
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- CN1208154C CN1208154C CN 02139371 CN02139371A CN1208154C CN 1208154 C CN1208154 C CN 1208154C CN 02139371 CN02139371 CN 02139371 CN 02139371 A CN02139371 A CN 02139371A CN 1208154 C CN1208154 C CN 1208154C
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- cast iron
- crystallizer
- iron pipe
- continuous casting
- heat
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Abstract
The present invention relates to an apparatus and the technology for producing cast iron pipes by the horizontal continuous casting method. The apparatus for horizontal continuous casting comprises a tractor and a heat-insulating reservoir, wherein the heat-insulating reservoir stores molten iron. A crystallizer is connected with the heat-insulating reservoir. The present invention also comprises a diversion partition board connected with the heat-insulating reservoir. A core mold is connected with the diversion partition board. The outer side of the core mold is provided with an annular sleeve mold. The outer side of the annular sleeve mold is provided with a spiral water-cooled jacket. The crystallizer is connected with the outer wall of the heat-insulating reservoir. A water inlet and a water outlet at both ends of the water-cooled jacket are connected with cyclical cooling water. The outlet end of the crystallizer is provided with a plurality of groups of water-air mixture spray coolers. The present invention has the advantages of little area occupation, little investment, low cost and high production efficiency, ensures the uniform thickness of the pipe walls of drawn cast iron pipes, enhances pipe drawing efficiency by more than 50%, thoroughly solves the problems of molten iron degraded spheroidization and degraded inoculation existing in the prior art due to low pipe drawing speed, and enhances production yield.
Description
Technical field
The present invention relates to produce the equipment of continuous casting cast iron pipe, particularly horizontal continuous casting method is produced the device of cast iron pipe.
Background technology
At present, cast iron pipe production is in China's casting industry, and its weight has accounted for the 1/5-1/6 of casting gross weight.The manufacturing technique method of cast iron pipe is based on continuous, semi-continuous pipe casting.The whole nation existing nearly 200 tame cast tube manufacturer, the producer more than 90% all adopts continuous casting process.Its Apparatus and method for all is five sixties to introduce the former Soviet Union, mainly is vertical or the vertical continuous cast tube.Utilize this equipment and process shortcoming more, the tubing water pressure resistance performance of producing is general≤1.0Mpa, therefore, industrially developed country has all progressively eliminated this equipment and technology.Each state of our times all adopts spun cast pipe production equipment and process, and with the cast iron pipe dense structure that this equipment and explained hereafter go out, intensity and toughness are better than the vertical continuous casting pipe.The now existing production capacity of producing the hundreds of thousands ton per year of China, but this method exists one-time investment big, the production cost height, shortcomings such as complex process adopt above-mentioned spun cast pipe technology production cast tube still to have any problem on fund for China is a large amount of.
According to Shaanxi Province's information research content of the present invention has been done literature search, found 16 pieces of pertinent literatures, relevant patent documentation report has not also been arranged with device provided by the invention.
Summary of the invention
The objective of the invention is to utilize the horizontal continuous casting equipment of existing production solid cast section bar and transform, production efficiency height, cost is low, the measured horizontal casting of matter is produced cast iron pipe device are provided.
The technical scheme that realizes the object of the invention is to solve like this:
Comprise a hauling machine and an insulation liquid storage container, in the insulation liquid storage container, store molten iron, with the insulation liquid storage container is connected a crystallizer arranged, said crystallizer also comprises a diaphragm that links to each other with the insulation liquid storage container, what be connected with diaphragm has a core, be provided with annular cover die in the outside of core, the outside of annular cover die be provided with the screw type water collar and be connected the insulation liquid storage container outer wall on, the port of export at crystallizer is equipped with many group gas-vapor mix spray coolers, core is a pyramidal structure, and its length is greater than the length of annular cover die.
The tapering α angle of core is controlled at 0 °～2.5 °, length greater than the length of annular cover die smaller or equal to 1.2 times of annular cover die length.
Process of the present invention is carried out according to the following steps:
A: adopt the horizontal continuous casting equipment of production solid cast pipe profile to be equipped with device of the present invention;
B: by an insulation of production capacity design liquid storage container, allow molten iron have bigger pressure head, the impurity in the molten iron can fully be floated, guarantee the purity of molten iron;
C, increase container volume and pressure head make the molten iron feeding abundant, thereby improve mechanical performance of products;
D, enter the annular die cavity of crystallizer when molten iron after, force cooling with cooling water, the molten iron crystallization and freezing forms cast iron pipe, pull out by hauling machine, after cast iron pipe was drawn out crystallizer step by step, with the cooling of gas-vapor mix spray cooler secondary spraying, cast iron pipe continued cooling again, the cast iron pipe of pulling out cuts off by the size of customer requirements after being directed to cutting machine by guide wheel.
The present invention compared with prior art has the following advantages:
1, because the process characteristic of horizontal casting is that pressure head is big, feeding is abundant, the impurity of the molten iron in the insulation liquid storage container can fully be floated, flow into the molten iron free from admixture in the crystallizer, therefore major technique quality index such as the mechanical performance of the cast iron tubing that produces, compactness and oil resistant pressure air-tightness are better than centrifugal cast iron pipe, and more can substantially exceed every technical indicator of common continuous casting cast iron pipe.
2, adopt device of the present invention and technology, occupation of land less, investment is little, cost is low, production efficiency is high.
3, the gas-vapor mix spray cooler of crystallizer exit setting can make the abundant mixed aerosol of air water, forms secondary spray cold-zone, thereby has guaranteed that the cast iron pipe tube wall thickness of pulling out is even, makes trombone slide efficient improve more than 50%.
4, because the present invention has improved the pulling rate of cast tube, thoroughly solved exist in the prior art cause molten iron decaying spheroidisation and inoculation fade problem because pulling rate is low, improved the yield rate of product.
5, adopt the present invention to adapt to the production different size, the various high oil resistant of different size, high withstand voltage ductile iron pipe or general cast iron pipe, and can prevent the generation of bleedout accident.
6, the present invention can become pipe production line to the horizontal solid profile horizontal caster of prior art improvement of manufacturing line.Therefore, the present invention has better economic and social benefit, and can organize foreign exchange earning.
Description of drawings
Fig. 1 is the generalized section of apparatus of the present invention
The specific embodiment
Accompanying drawing is a specific embodiment of the present invention
Below in conjunction with accompanying drawing content of the present invention is described further
Shown in accompanying drawing, horizontal continuous casting method is produced the device of cast iron pipe, comprise a hauling machine and an insulation liquid storage container 2, in insulation liquid storage container 2, store molten iron 1, with insulation liquid storage container 2 is connected a crystallizer arranged, it is characterized in that said crystallizer also comprises a diaphragm 3 that links to each other with insulation liquid storage container 2, what be connected with diaphragm 3 has a core 5, be provided with annular cover die 7 in the outside of core 5, be provided with screw type water collar 4 in the outside of annular cover die 7, and be connected on the outer wall of insulation liquid storage container 2, be connected with turnover water nozzle 6 at the two ends of water collar 4, many group gas-vapor mix spray coolers 8 be housed at the port of export of crystallizer.Core is a pyramidal structure, and its tapering α angle is controlled at 1 ° or 1.5 °, and length is 0.25 meter or 0.5 meter.
Horizontal continuous casting method is produced the technology of cast iron pipe, carries out according to the following steps:
The horizontal continuous casting equipment of A, employing production solid cast section bar is equipped with device of the present invention;
B, an insulation of production capacity design liquid storage container 2 per diem allow molten iron 1 have bigger pressure head, and the impurity in the molten iron 1 can fully be floated, and guarantee the purity of molten iron 1;
C, increase volume and pressure head make molten iron 1 feeding abundant, thereby improve mechanical performance of products.
D, after molten iron 1 enters annular die cavity, force cooling with cooling water, molten iron 1 crystallization and freezing forms cast iron pipe, draw by hauling machine, after cast iron pipe is drawn out crystallizer step by step, water gas blowout cooler 8 secondary spraying cooling again, cast iron pipe continues cooling, and the cast iron pipe of pulling out 10 is sent to cutting machine by guide wheel.Size by customer requirements is cut off.
Claims (2)
1, a kind of horizontal continuous casting method is produced the device of cast iron pipe, comprise a hauling machine and an insulation liquid storage container (2), in insulation liquid storage container (2), store molten iron (1), with insulation liquid storage container (2) is connected a crystallizer arranged, it is characterized in that, said crystallizer also comprises a diaphragm (3) that links to each other with insulation liquid storage container (2), what be connected with diaphragm (3) has a core (5), be provided with annular cover die (7) in the outside of core (5), be provided with screw type water collar (4) in the outside of annular cover die (7), and be connected on the outer wall of insulation liquid storage container (2), the port of export at crystallizer is equipped with many group gas-vapor mix spray coolers (8), described core (5) is a pyramidal structure, and its length is greater than the length of annular cover die (7).
2, horizontal continuous casting method according to claim 1 is produced the device of cast iron pipe, it is characterized in that, described core (5), its tapering α angle is controlled at 0 °～2.5 °, length greater than the length of annular cover die (7) smaller or equal to 1.2 times of annular cover die (7) length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02139371 CN1208154C (en) | 2002-08-20 | 2002-08-20 | Equipment for producing cast iron pipe using horizontal continuous casting method and technology of producing cast iron pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02139371 CN1208154C (en) | 2002-08-20 | 2002-08-20 | Equipment for producing cast iron pipe using horizontal continuous casting method and technology of producing cast iron pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1410188A CN1410188A (en) | 2003-04-16 |
| CN1208154C true CN1208154C (en) | 2005-06-29 |
Family
ID=4750051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02139371 Expired - Fee Related CN1208154C (en) | 2002-08-20 | 2002-08-20 | Equipment for producing cast iron pipe using horizontal continuous casting method and technology of producing cast iron pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1208154C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7004229B2 (en) * | 2003-12-11 | 2006-02-28 | Novelis, Inc. | Method and apparatus for starting and stopping a horizontal casting machine |
| CN103203437B (en) * | 2013-03-20 | 2015-11-18 | 河南科技大学 | Horizontal continuous casting apparatus and use the oxidizable horizontal continuous casting of copper alloy method of this device |
| CN105234358B (en) * | 2015-10-29 | 2017-03-29 | 重庆市大足区通达铁路车辆配件制造有限公司 | Cast iron tubing horizontal continuous casting equipment and technique |
| CN105328145B (en) * | 2015-12-15 | 2017-09-29 | 邯郸市恒工冶金机械有限公司 | A kind of crystallizer for producing cast iron thick-walled pipe |
| CN106225350A (en) * | 2016-08-24 | 2016-12-14 | 常州市江浪铸造有限公司 | Thermal-insulating type cast iron casting molten metal reservoir |
| CN107504072A (en) * | 2017-08-10 | 2017-12-22 | 张天贵 | The preparation method of rolling bearing |
| CN107803473A (en) * | 2017-11-17 | 2018-03-16 | 马鞍山市海华金属制品有限公司 | A kind of horizontal casting casting device |
| CN117415292B (en) * | 2023-11-01 | 2024-05-07 | 江苏兴成新材料有限公司 | High-precision copper strip horizontal continuous casting unit automation equipment |
-
2002
- 2002-08-20 CN CN 02139371 patent/CN1208154C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1410188A (en) | 2003-04-16 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050629 |