Continuous casting submersed nozzle clamping device and system

Abstract

The utility model belongs to the field of steelmaking continuous casting, and particularly relates to a continuous casting submersed nozzle clamping device and a continuous casting submersed nozzle clamping system, the continuous casting submersed nozzle clamping device comprises a first nozzle clamping piece and a second nozzle clamping piece arranged opposite to the first nozzle clamping piece; the first water gap clamping piece comprises a first fixing plate, a second fixing plate and a first arc-shaped clamping part, the second fixing plate and the first fixing plate are arranged in parallel, fixing holes are formed in the first fixing plate and the second fixing plate respectively, and the first water gap clamping piece is connected with the water gap clamping driving oil cylinder through the fixing holes; the second water gap clamping piece comprises a third fixing plate and a second arc-shaped clamping part, the end part of the third fixing plate is vertically connected with the second arc-shaped clamping part, the third fixing plate is provided with a fixing hole, and the second water gap clamping piece is fixed on the water gap mechanism through the fixing hole. The device is convenient for on-site operation, especially single-flow pouring after abnormity occurs, and the subsequent operation after the water gap cannot be fished out is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of steelmaking continuous casting, and in particular relates to a continuous casting immersion nozzle clamping device and system. Background Art

[0002] At present, the six continuous casting machines of Baosteel Steel Plant all adopt the flow control technology of the intermediate package plug rod, and in order to reduce the link of air inhalation during pouring, an integral submerged nozzle is used under normal circumstances. However, there is a problem. When a CAST (casting) ends or an unexpected situation occurs, in order to completely cut off the flow, the submerged nozzle must be interrupted by a blind plate, which causes the interrupted nozzle to fall into the crystallizer. The operator must fish it out, otherwise it will affect the production of the next CAST (casting). The whole process is not only unsafe, but also increases the labor intensity of the operator. Therefore, the utility model designs a clamping device that can clamp the interrupted nozzle until the operator operates it again, and the nozzle will not fall.

[0003] At present, after a CAST (casting) is completed or one stream has an abnormal final casting while the other stream is still in production, the tundish plug rod often cannot be closed, especially for calcium-treated steel or other special reasons. This requires the operator to immediately insert a blind plate to completely cut off the flow. If the flow is not cut off, the molten steel will adhere to the roller of the crystallizer or the 0# fan-shaped segment, affecting subsequent production. The knocked-down nozzle will fall into the crystallizer. The operator must remove the knocked-down nozzle from the crystallizer as soon as possible to prevent it from falling into the casting machine, otherwise he will have to pick up the nozzle in the casting machine, which is unsafe and wastes labor. Utility Model Content

[0004] In order to solve the above problems, the utility model discloses a continuous casting submerged nozzle clamping device and system, the main purpose of which is that when the operator drives in the blind plate, the clamp can automatically clamp the knocked-down nozzle until the operator operates again. This facilitates on-site operations, especially single-stream casting after an abnormality occurs, and avoids subsequent operations after the nozzle cannot be fished out.

[0005] The technical solution of this utility model:

[0006] A continuous casting submerged water nozzle clamping device, characterized in that: the water nozzle clamping device comprises: a first water nozzle clamping member 14 and a second water nozzle clamping member 15 arranged opposite to the first water nozzle clamping member 14; the first water nozzle clamping member 14 comprises a first fixed plate 16, a second fixed plate 17 arranged parallel to the first fixed plate, and a first arc-shaped clamping portion 18, the ends of the first fixed plate 16 and the second fixed plate 17 are both vertically perpendicular to the first arc-shaped clamping portion 18, and fixing holes are respectively provided on the first fixed plate 16 and the second fixed plate 17, and the first water nozzle clamping member 14 is connected to the water nozzle clamping drive cylinder 8 through the fixing holes; the second water nozzle clamping member 15 comprises a third fixed plate 19 and a second arc-shaped clamping portion 20, the end of the third fixed plate 19 is vertically connected to the second arc-shaped clamping portion 20, the third fixed plate is provided with a fixing hole, and the second water nozzle clamping member 15 is fixed to the water nozzle mechanism through the fixing hole.

[0007] The fixing hole is connected to the nozzle clamping driving cylinder or nozzle mechanism by means of rivets, bolts, etc.

[0008] Furthermore, the first arc-shaped clamping portion 18 and the second arc-shaped clamping portion 20 are both plane in the middle and arc-shaped at both ends.

[0009] Furthermore, the number of fixing holes on the fixing plate is 2-6.

[0010] The utility model also provides a continuous casting immersed nozzle clamping system, comprising: a hydraulic station, an accumulator, a nozzle interrupting unit and a nozzle clamping unit; the nozzle interrupting unit is provided with a nozzle interrupting device and a nozzle interrupting driving cylinder, the nozzle clamping unit is provided with a nozzle clamping device and a nozzle clamping driving cylinder, the nozzle clamping device is the above-mentioned continuous casting immersed nozzle clamping device, the nozzle clamping device cooperates with the nozzle interrupting device to establish an action rhythm of clamping → interrupting → releasing, and realizes controllable release of the nozzle.

[0011] Furthermore, the water inlet interruption driving cylinder forms a hydraulic oil circuit for water inlet interruption through the rodless cavity, the rod cavity and the hydraulic device; the water inlet clamping driving cylinder forms a hydraulic oil circuit for water inlet clamping through the rodless cavity, the rod cavity and the hydraulic device.

[0012] Furthermore, the hydraulic oil circuit from the hydraulic valve to the rod chamber of the water inlet interruption driving cylinder is connected in parallel with the hydraulic oil circuit from the hydraulic valve to the rod chamber of the water inlet clamping driving cylinder; the hydraulic oil circuit from the hydraulic valve to the rodless chamber of the water inlet interruption driving cylinder is connected in parallel with the hydraulic oil circuit from the hydraulic valve to the rodless chamber of the water inlet clamping driving cylinder.

[0013] Furthermore, a three-position four-way solenoid reversing valve 3 is provided at the inlet and outlet of the hydraulic station of the hydraulic system. The hydraulic oil interrupts the cylinderless chamber of the driving cylinder 1 and the rodless chamber of the driving cylinder 8 clamped by the water outlet through the left-position connecting water outlet of the three-position four-way solenoid reversing valve; the hydraulic press interrupts the rod chamber of the driving cylinder 1 and the rod chamber of the driving cylinder 8 clamped by the water outlet through the right-position connecting water outlet of the three-position four-way solenoid reversing valve.

[0014] Furthermore, the oil inlet of the accumulator 6 is connected to the hydraulic pressure, and the oil outlet thereof is connected to the rodless chamber of the water inlet clamping driving cylinder 8, so as to cooperate with the water inlet clamping unit.

[0015] Furthermore, a pressure gauge 11 and a first two-position two-way electromagnetic reversing valve 7-1 are provided in the oil circuit from the oil outlet of the accumulator 6 to the rodless chamber of the water port clamping driving cylinder 8, and a second two-position two-way electromagnetic reversing valve 7-2 is provided in the oil circuit from the hydraulic valve to the rod chamber of the water port interrupting driving cylinder.

[0016] Furthermore, an adjustable one-way throttle valve is provided on the oil path from the hydraulic device to the rod chamber of the water inlet interruption driving oil cylinder.

[0017] Furthermore, an adjustable oil circuit switch and a flow meter are provided on the oil circuit from the hydraulic device to the rodless chamber of the water inlet clamping drive cylinder.

[0018] Furthermore, an overflow pressure reducing valve is provided on the oil path from the hydraulic device to the rodless chamber of the water inlet clamping drive cylinder.

[0019] Furthermore, a filter is provided on the oil path from the hydraulic device to the water inlet clamping drive cylinder.

[0020] The utility model also provides a continuous casting immersion nozzle clamping system, the functions of the main components are:

[0021] 1-Sprue interruption drive cylinder----used for blind plate;

[0022] 3-Three-position four-way electromagnetic reversing valve---used to realize the reversal of the oil circuit;

[0023] 4-Hydraulic station---provides pressure for the entire system;

[0024] 6-Accumulator---It plays the role of speed increase, so that the clamping action of the nozzle clamping driving cylinder is slightly faster than the interrupting action of the nozzle interrupting driving cylinder, that is to say, the nozzle is clamped first and then interrupted;

[0025] 7- Two-position two-way solenoid reversing valve---used to realize the passage / disconnection of the oil circuit;

[0026] 8-Sprue clamping drive cylinder---used to clamp the sprue;

[0027] 9-Adjustable oil circuit switch--the size of the oil circuit can be adjusted according to the actual situation on site;

[0028] 12-Relief pressure reducing valve---maintain system pressure;

[0029] Beneficial technical effects:

[0030] The utility model provides a continuous casting immersion nozzle clamping device and system. When the operator drives in the blind plate, the clamp can automatically clamp the knocked-down nozzle until the operator operates again. This facilitates on-site operations, especially single-stream casting after an abnormality occurs, and avoids subsequent operations after the nozzle cannot be fished out. Production safety is guaranteed, production efficiency is improved, and labor costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The utility model also provides a structural diagram of a continuous casting immersion nozzle clamping system.

[0032] Figure 2 This is the front view of the continuous casting submerged nozzle clamping device.

[0033] Figure 3 It is a top view of the continuous casting submerged nozzle clamping device.

[0034] Figure 4 It is the left view of the continuous casting submerged nozzle clamping device.

[0035] Figure 5 It is a three-dimensional diagram of the continuous casting submerged nozzle clamping device.

[0036] Among them: 1-water inlet interruption driving cylinder, 2-flow meter, 3-three-position four-way electromagnetic reversing valve, 4-hydraulic station, 5-filter, 6-accumulator, 7-1-first two-position two-way electromagnetic reversing valve, 7-2-second two-position two-way electromagnetic reversing valve 8-water inlet clamping driving cylinder, 9-adjustable oil circuit switch, 10-flow meter, 11-pressure gauge, 12-overflow pressure reducing valve, 13-immersed water inlet, 14-first water inlet clamping piece, 15-second water inlet clamping piece, 16-first fixed plate, 17-second fixed plate, 18-first arc-shaped clamping part, 19-third fixed plate, 20-second arc-shaped clamping part. Specific embodiments

[0037] The following is a detailed description of the present invention in conjunction with the accompanying drawings and embodiments. These embodiments are only general descriptions of the present invention and do not limit the present invention.

[0038] Figure 4 to Figure 7 are the three-view and three-dimensional drawings of the on-site sprue clamp, where the two circular holes on the cylinder connection side of the sprue clamp are used for cylinder connection and fixation, and the four circular holes on the fixed side of the sprue clamp can fix it on the sprue mechanism, working together with the clamp on the other side to achieve the purpose of clamping the sprue.

[0039] A continuous casting submerged nozzle clamping device, characterized in that: the nozzle clamping device comprises: a first nozzle clamping member 14 and a second nozzle clamping member 15 arranged opposite to the first nozzle clamping member 14; the first nozzle clamping member 14 comprises a first fixing plate 16, a second fixing plate 17 arranged in parallel with the first fixing plate, and a first arc-shaped clamping portion 18, the ends of the first fixing plate 16 and the second fixing plate 17 are both vertically perpendicular to the first arc-shaped clamping portion 18, and fixing holes are respectively provided on the first fixing plate 16 and the second fixing plate 17, and the first nozzle clamping member 14 is connected to the nozzle clamping drive cylinder 8 through the fixing holes; the second nozzle clamping member 15 comprises a third fixing plate 19 and a second arc-shaped clamping portion 20, the ends of the third fixing plate 19 are vertically connected to the second arc-shaped clamping portion 20, the third fixing plate is provided with a fixing hole, and the second nozzle clamping member 15 is fixed to the nozzle mechanism through the fixing hole. The fixing hole is connected to the nozzle clamping drive cylinder or the nozzle mechanism by means of rivets, bolts, etc. The first arc-shaped clamping portion 18 and the second arc-shaped clamping portion 20 are both plane in the middle and arc-shaped at both ends. The number of fixing holes on the fixing plate is 2-6.

[0040] The utility model also provides a continuous casting submerged nozzle clamping system, comprising: a hydraulic station, an accumulator, a nozzle interrupting unit and a nozzle clamping unit; the nozzle interrupting unit is provided with a nozzle interrupting device and a nozzle interrupting driving cylinder, the nozzle clamping unit is provided with a nozzle clamping device and a nozzle clamping driving cylinder, the nozzle clamping device is the above-mentioned continuous casting submerged nozzle clamping device, the nozzle clamping device cooperates with the nozzle interrupting device to establish an action rhythm of clamping → interrupting → releasing, and realizes the controllable release of the nozzle. The nozzle interrupting driving cylinder forms a hydraulic oil circuit for nozzle interruption through a rodless cavity, a rod cavity and a hydraulic device; the nozzle clamping driving cylinder forms a hydraulic oil circuit for nozzle clamping through a rodless cavity, a rod cavity and a hydraulic device. The hydraulic oil circuit from the hydraulic machine to the rod chamber of the water inlet interruption driving cylinder is connected in parallel with the hydraulic oil circuit from the hydraulic machine to the rod chamber of the water inlet clamping driving cylinder; the hydraulic oil circuit from the hydraulic machine to the rodless chamber of the water inlet interruption driving cylinder is connected in parallel with the hydraulic oil circuit from the hydraulic machine to the rodless chamber of the water inlet clamping driving cylinder. The hydraulic oil inlet and outlet of the hydraulic machine are provided with a three-position four-way reversing valve. The hydraulic machine is connected to the cylinderless chamber of the water inlet interruption driving cylinder and the rodless chamber of the water inlet clamping driving cylinder through the left position of the three-position four-way reversing valve; the hydraulic machine is connected to the rod chamber of the water inlet interruption driving cylinder and the rod chamber of the water inlet clamping driving cylinder through the right position of the three-position four-way reversing valve. The oil inlet of the accumulator is connected to the hydraulic machine, and its oil outlet is connected to the rodless chamber of the water inlet clamping driving cylinder, so as to cooperate with the water inlet clamping unit. A pressure gauge and a first two-position two-way electromagnetic reversing valve are provided on the oil circuit from the oil outlet of the accumulator to the rodless chamber of the water inlet clamping driving cylinder, and a second two-position two-way electromagnetic reversing valve is provided on the oil circuit from the hydraulic device to the rod chamber of the water inlet interrupting driving cylinder. An adjustable one-way throttle valve is provided on the oil circuit from the hydraulic device to the rod chamber of the water inlet interrupting driving cylinder. An adjustable oil circuit switch and a flow meter are provided on the oil circuit from the hydraulic device to the rodless chamber of the water inlet clamping driving cylinder. An overflow pressure reducing valve is provided on the oil circuit from the hydraulic device to the rodless chamber of the water inlet clamping driving cylinder. A filter is provided on the oil circuit from the hydraulic device to the water inlet clamping driving cylinder.

[0041] Specific operation of continuous casting submerged nozzle clamping device

[0042] The specific operations are as follows:

[0043] The first step is to manually move the reversing valve of the accumulator to the left position to store energy in the accumulator. When the energy storage is completed, push the reversing valve to the right position. After this step is completed, it is not necessary to perform this step again in future operations under normal circumstances.

[0044] The second step is that before normal production, the operator installs and connects the two cylinders separately.

[0045] The third step is to press the S0-1 button (with self-locking function) when the flow needs to be cut off and a blind plate needs to be installed. The two cylinders will move successively to complete the actions of clamping the water outlet and installing a blind plate to cut off the flow.

[0046] Step 4: When the tundish trolley moves out of the pouring position, or the operator needs to remove the nozzle, he can press S1 (self-reset button). At this time, the cylinder connected to the nozzle clamp will retreat and the nozzle will fall off.

[0047] Step 5. After the operator removes the blind plate hydraulic cylinder, he can press S4 and the blind plate hydraulic cylinder will move back. If you need to return to the standby position, just press and hold it.

[0048] In the sixth step, you need to press S0-2 to release the self-lock of S0-1. You can also press S0-2 when the system needs emergency stop if an accident occurs during operation.

[0049] After that, the operations from the second to the sixth steps mentioned above can be repeated. It should be noted that for safety reasons, the cylinder for drilling the blind plate is moved back in an inching manner, and the movement speed of the cylinder for clamping the sprue is adjusted according to the position of the cylinder after it is installed on the mechanism for drilling the blind plate during on-site debugging. Therefore, the position of the cylinder rod must be confirmed before each use to prevent the cylinder from moving faster than the cylinder for clamping the sprue.

Claims

1. A continuous casting immersion nozzle clamping device, characterized in that: The continuous casting submerged water nozzle clamping device comprises: a first water nozzle clamping member (14) and a second water nozzle clamping member (15) arranged opposite to the first water nozzle clamping member (14); the first water nozzle clamping member (14) comprises a first fixed plate (16), a second fixed plate (17) arranged parallel to the first fixed plate, and a first arc-shaped clamping portion (18); the ends of the first fixed plate (16) and the second fixed plate (17) are both vertically perpendicular to the first arc-shaped clamping portion (18); the first fixed plate (16) and the second fixed plate (17) are respectively provided with fixing holes; the first water nozzle clamping member (14) is connected to the water nozzle clamping drive cylinder (8) through the fixing holes; the second water nozzle clamping member (15) comprises a third fixed plate (19) and a second arc-shaped clamping portion (20); the end of the third fixed plate (19) is vertically connected to the second arc-shaped clamping portion (20); the third fixed plate is provided with a fixing hole; the second water nozzle clamping member (15) is fixed to the water nozzle mechanism through the fixing hole.

2. The continuous casting submerged nozzle clamping device according to claim 1, characterized in that: The first arc-shaped clamping portion (18) and the second arc-shaped clamping portion (20) are both plane in the middle and arc-shaped at both ends.

3. The continuous casting submerged nozzle clamping device according to claim 1, characterized in that: The number of the fixing holes is 2-6.

4. A continuous casting submerged nozzle clamping system, comprising: A hydraulic station, an accumulator, a nozzle interruption unit and a nozzle clamping unit; the nozzle interruption unit is provided with a nozzle interruption device and a nozzle interruption driving cylinder, and the nozzle clamping unit is provided with a nozzle clamping device and a nozzle clamping driving cylinder, characterized in that: The water nozzle clamping device is the continuous casting submerged water nozzle clamping device as described in any one of claims 1 to 3. The water nozzle clamping device cooperates with the water nozzle interrupting device to establish an action rhythm of clamping → interrupting → releasing, thereby realizing controllable release of the water nozzle.

5. The continuous casting submerged nozzle clamping system according to claim 4, characterized in that: The water inlet interruption driving cylinder forms a hydraulic oil circuit for water inlet interruption through the rodless cavity, the rod cavity and the hydraulic device; the water inlet clamping driving cylinder forms a hydraulic oil circuit for water inlet clamping through the rodless cavity, the rod cavity and the hydraulic device.

6. The continuous casting submerged nozzle clamping system according to claim 4, characterized in that: The hydraulic station inlet and outlet of the hydraulic system are provided with a three-position four-way electromagnetic reversing valve (3); the hydraulic oil interrupts the cylinderless chamber of the driving cylinder (1) and the rodless chamber of the driving cylinder (8) clamped by the water outlet through the left-position connecting water outlet of the three-position four-way electromagnetic reversing valve; the hydraulic press interrupts the rod chamber of the driving cylinder (1) and the rod chamber of the driving cylinder (8) clamped by the water outlet through the right-position connecting water outlet of the three-position four-way electromagnetic reversing valve.

7. The continuous casting submerged nozzle clamping system according to claim 4, characterized in that: The oil inlet of the accumulator (6) is connected to the hydraulic pressure device, and the oil outlet is connected to the rodless chamber of the nozzle clamping driving cylinder (8) to cooperate with the nozzle clamping unit.

8. The continuous casting submerged nozzle clamping system according to claim 5, characterized in that: A pressure gauge (11) and a first two-position two-way electromagnetic reversing valve (7-1) are provided on the oil circuit from the oil outlet of the accumulator (6) to the rodless chamber of the water port clamping driving cylinder (8), and a second two-position two-way electromagnetic reversing valve (7-2) is provided on the oil circuit from the hydraulic device to the rod chamber of the water port interrupting driving cylinder.

9. The continuous casting submerged nozzle clamping system according to claim 5, characterized in that: An adjustable oil circuit switch (9) and a flow meter (10) are provided on the oil circuit from the hydraulic device to the rodless chamber of the water inlet clamping drive cylinder.

10. The continuous casting submerged nozzle clamping system according to claim 5, characterized in that: An overflow pressure reducing valve (12) is arranged on the oil path from the hydraulic device to the rodless chamber of the water inlet clamping driving oil cylinder.

Images