CN212398052U - Continuous casting withdrawal and straightening machine - Google Patents
Continuous casting withdrawal and straightening machine Download PDFInfo
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- CN212398052U CN212398052U CN202020586223.1U CN202020586223U CN212398052U CN 212398052 U CN212398052 U CN 212398052U CN 202020586223 U CN202020586223 U CN 202020586223U CN 212398052 U CN212398052 U CN 212398052U
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Abstract
The utility model discloses a continuous casting withdrawal and straightening machine, which comprises a frame, wherein three fixed rollers are sequentially arranged on the frame along the moving direction of a casting blank, and a fixed roller reduction box is arranged on the fixed roller which is firstly contacted with the casting blank; the machine frame is also provided with two water tanks and two free rollers, and the two free rollers are respectively provided with a free roller reduction box; a water inlet cavity and a water return cavity are formed in the frame, and independent cooling water inlet pipelines are respectively led out from the water inlet cavity to the fixed roller, the water tank and the free roller; the water tank, the fixed roller reduction gearbox, the free roller reduction gearbox and the two fixed rollers which are in back contact with the casting blank are respectively led out of independent cooling water return pipelines to the water return chamber; the water inlet chamber is provided with a water inlet for supplementing cooling water, and the water return chamber is provided with a water outlet for discharging water outwards. The continuous casting withdrawal and straightening machine obviously improves the cooling effect by arranging the cooling system with the parallel structure, and meets the requirement of high withdrawal speed production.
Description
Technical Field
The utility model relates to a continuous casting equipment, concretely relates to continuous casting draws machine of rectifying.
Background
The withdrawal and straightening machine is one of the core equipment of a continuous casting machine, and if the withdrawal and straightening machine fails, continuous casting withdrawal and straightening disconnection is caused. The technical requirements comprise that: 1. the resistance of the crystallizer and the secondary cooling device to the casting blank can be overcome, the casting blank is pulled out, and the dummy bar can be sent to the lower opening of the crystallizer; 2. enough opening degree is required between the upper roll and the lower roll of the pulling and straightening roll and can be adjusted to produce casting blanks with different sections, and when a rigid dummy bar is adopted, the dummy bar is allowed to pass through; 3. the upper roll has enough reduction force to meet the requirements of blank drawing friction force and blank straightening, the pressure can be adjusted to meet the requirements of different sections, the defect of the blank caused by excessive pressurization on the blank is prevented, and the pressure is rapidly changed when the ingot guide rod is transited to the blank in casting so as to prevent the high-temperature blank from being pressed and deformed.
Because the tension leveler is continuously produced in a high-temperature severe environment, a proper cooling system is required for cooling so as to keep a good production state. The existing water cooling system of the withdrawal and straightening machine adopts serial cooling, cooling water sequentially passes through a withdrawal and straightening machine frame, a water tank, rollers and reduction boxes for cooling, the serial cooling mode cannot meet the requirement along with the development of continuous casting towards high withdrawal speed, the fault rate of the reduction boxes is increased, and the integral service life of the withdrawal and straightening machine is obviously shortened.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the defects of the prior art, the utility model provides a continuous casting withdrawal and straightening machine, the cooling system of the continuous casting withdrawal and straightening machine can be cooled efficiently, and is suitable for the high withdrawal speed withdrawal and straightening operation.
The technical scheme is as follows: the utility model relates to a continuous casting withdrawal and straightening machine, which comprises a frame, wherein three fixed rollers are sequentially arranged on the frame along the moving direction of a casting blank, and a fixed roller reduction box is arranged on the fixed roller which is firstly contacted with the casting blank; the machine frame is also provided with two water tanks and two free rollers, and the two free rollers are respectively provided with a free roller reduction box; a water inlet cavity and a water return cavity are formed in the frame, and independent cooling water inlet pipelines are respectively led out from the water inlet cavity to the fixed roller, the water tank and the free roller; the water tank, the fixed roller reduction gearbox, the free roller reduction gearbox and the two fixed rollers which are in back contact with the casting blank are respectively led out of independent cooling water return pipelines to the water return chamber; the water inlet chamber is provided with a water inlet for supplementing cooling water, and the water return chamber is provided with a water outlet for discharging water outwards.
In one embodiment, the free roller and the fixed roller which is firstly contacted with the casting blank are respectively provided with a cooling water return pipeline, the cooling water return pipeline of the free roller is connected to a free roller reduction box arranged on the free roller, the cooling water return pipeline of the fixed roller is connected with the fixed roller reduction box, and each cooling water return pipeline is used for supplying cooling water to each reduction box.
In one embodiment, the water inlet chamber leads out independent cooling water inlet pipelines to the fixed roller reduction gearbox and the free roller reduction gearbox respectively.
Furthermore, independent cooling water return pipelines are led out from the free roller and the fixed roller which is firstly contacted with the casting blank to the water return cavity respectively.
In one embodiment, the water return chamber is arranged above the water inlet chamber, and a water falling cooling pipeline is arranged downwards and connected with the water inlet chamber.
Has the advantages that: this continuous casting withdrawal and straightening machine is through drawing forth independent cooling inlet channel to each fixed roller, each free roller and each water tank from the cavity of intaking, forms the cooling system of parallelly connected structure, compares the cooling system who originally establishes ties, can show the promotion cooling effect, satisfies the requirement of high pull rate production.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
fig. 2 is a block diagram of a second embodiment of the present invention;
fig. 3 is a block diagram of a third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A continuous casting withdrawal and straightening unit as shown in fig. 1 to 3, wherein the direction of the black large arrow in fig. 1 indicates the moving direction of the cast slab. Three fixed rollers 2 are sequentially arranged on the frame 1 along the moving direction of the casting blank, and a fixed roller reduction box 3 is arranged on the fixed roller 2 which is firstly contacted with the casting blank. The machine frame 1 is also provided with two water tanks 4 and two free rollers 5, and the two free rollers 5 are also respectively provided with a free roller reduction box 6.
The cooling system of the continuous casting withdrawal and straightening machine is structured as follows: the frame 1 sets up into water cavity and return water cavity, and the water cavity that intakes is provided with the water inlet of supplementary cooling water, wants cooling system internal water supply through the water inlet, and simultaneously, the return water cavity is provided with the delivery port of outside drainage. The water inlet chamber leads out independent cooling water inlet pipelines 7 respectively to each fixed roller 2, each water tank 4 and each free roller 5 for supplying cooling water.
Referring to fig. 1 again, in the first embodiment, the water tank 4, the fixed roll reduction box 3, the free roll reduction box 6 and the two fixed rolls 2 which are in back contact with the casting blank respectively lead out independent cooling water return pipelines 8 to the water return chamber. The free roller 5 and the fixed roller 2 which is firstly contacted with the casting blank are both provided with a cooling water outlet pipeline 9, the cooling water outlet pipeline 9 of the free roller 5 is connected to a free roller reduction gearbox 6 arranged on the free roller 5, the cooling water outlet pipeline 9 of the fixed roller 2 is connected with a fixed roller reduction gearbox 3, and each cooling water outlet pipeline 9 is used for supplying cooling water to each reduction gearbox. That is, in this embodiment, the cooling water of the fixed roller 2, the water tank 4 and the free roller 5 is the cooling water directly supplied to the water inlet chamber, and the cooling water inlet of the free roller reduction gearbox 6 and the cooling water inlet of the fixed roller reduction gearbox 3 are connected with the cooling water outlet pipeline 9 of each corresponding roller.
In the second embodiment, in order to further improve the cooling effect, the cooling water of each device adopts an independent loop. Referring to fig. 2, in this embodiment, the water inlet chamber also leads out an independent cooling water inlet pipeline 7 to the fixed roller reduction gearbox 3 and the free roller reduction gearbox 6 respectively. At the moment, the water outlet pipelines of the free roller 5 and the fixed roller 2 which is firstly contacted with the casting blank are directly connected into the water return cavity, namely, the free roller 5 and the fixed roller 2 which is firstly contacted with the casting blank respectively want to be led out of the independent cooling water return pipelines 8 from the water return cavity.
In the third embodiment, in order to save the consumption of the cooling water, the cooling water is circulated by an internal circulation branch, specifically, the water return chamber is disposed above the water inlet chamber, and a falling water temperature reducing pipeline is arranged below the water return chamber and connected to the water inlet chamber. The pipe diameter of the falling water cooling pipeline is relatively thin, the flow rate is small, and a small part of water in the water return cavity directly flows into the water inlet cavity through the falling water cooling pipeline and is cooled in the falling process.
The cooling circulating water of each embodiment is taken by the cooling circulating pump for water circulation, and particularly, the pipelines are arranged according to the field environment.
Claims (5)
1. A continuous casting withdrawal and straightening machine comprises a rack (1), wherein three fixed rollers (2) are sequentially arranged on the rack (1) along the moving direction of a casting blank, and a fixed roller reduction box (3) is mounted on the fixed roller (2) which is firstly contacted with the casting blank; the machine frame (1) is also provided with two water tanks (4) and two free rollers (5), and the two free rollers (5) are respectively provided with a free roller reduction box (6); the device is characterized in that a water inlet chamber and a water return chamber are formed in the frame (1), and the water inlet chamber leads out independent cooling water inlet pipelines (7) to the fixed roller (2), the water tank (4) and the free roller (5) respectively; the water tank (4), the fixed roller reduction box (3), the free roller reduction box (6) and the two fixed rollers (2) which are in back contact with the casting blank are respectively led out of an independent cooling water return pipeline (8) to the water return chamber; the water inlet chamber is provided with a water inlet for supplementing cooling water, and the water return chamber is provided with a water outlet for discharging water outwards.
2. The continuous casting withdrawal and straightening machine according to claim 1, characterized in that the free roll (5) and the fixed roll (2) which is firstly contacted with the casting blank are both provided with a cooling water outlet pipeline (9), the cooling water outlet pipeline (9) of the free roll (5) is connected to a free roll reduction gearbox (6) arranged on the free roll (5), the cooling water outlet pipeline (9) of the fixed roll (2) is connected to the fixed roll reduction gearbox (3), and each cooling water outlet pipeline (9) is used for supplying cooling water to each reduction gearbox.
3. The continuous casting withdrawal and straightening unit as claimed in claim 1, characterized in that the water inlet chamber leads out independent cooling water inlet pipelines (7) to the fixed roll reduction gearbox (3) and the free roll reduction gearbox (6) respectively.
4. The continuous casting withdrawal and straightening unit according to claim 3, characterized in that the free rolls (5) and the fixed roll (2) which first contacts the cast strand each lead out a separate cooling return line (8) to the return chamber.
5. The continuous casting withdrawal and straightening machine as claimed in claim 1, wherein the water return chamber is arranged above the water inlet chamber, a water falling cooling pipeline is arranged downwards the water return chamber, and the water falling cooling pipeline is connected with the water inlet chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020586223.1U CN212398052U (en) | 2020-04-17 | 2020-04-17 | Continuous casting withdrawal and straightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020586223.1U CN212398052U (en) | 2020-04-17 | 2020-04-17 | Continuous casting withdrawal and straightening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212398052U true CN212398052U (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020586223.1U Active CN212398052U (en) | 2020-04-17 | 2020-04-17 | Continuous casting withdrawal and straightening machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212398052U (en) |
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2020
- 2020-04-17 CN CN202020586223.1U patent/CN212398052U/en active Active
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