A high alloy steel continuous casting crystallizer oil protection pouring production control device

Abstract

The invention discloses a high-alloy steel continuous casting crystallizer oil protection pouring production control device, comprising a containing box body, a circular oil filling hole is arranged on the upper part of the containing box body, and the circular oil filling hole is provided with an oil filling hole cover, and the upper part of the crystallizer containing box is provided with: a curved boost hole tube is arranged and installed on the side of the upper part of the containing box body away from the circular oil filling hole, and the curved boost hole tube is connected to an external boost pump, and an oil outlet hole is arranged at the lower part of the containing box body, and the oil outlet holes are respectively connected to hard oil outlet pipes, and an oil circuit cut-off valve and a flow regulating valve are arranged on the hard oil outlet pipe, and the bottom of the hard oil outlet pipe is connected to a soft oil outlet pipe through an oil pipe quick connector, and the outlet position of the hard oil outlet pipe on the containing box body is connected to the oil pipe outlet on the oil outlet hole fixing support device through a heat-proof hose.

Description

Technical Field

[0001] The invention belongs to the technical field of steelmaking, and in particular relates to a high-alloy steel continuous casting crystallizer oil protection pouring production control device. Background Art

[0002] In recent years, high-alloy steel has been developed rapidly. The surface quality problem of high-alloy steel in the corresponding steelmaking production process has always been a technical problem in the control of high-alloy steel production. The surface quality problem in the production process of high-alloy steel is mainly the surface cracks of the ingot, namely, surface transverse cracks and surface longitudinal cracks, which are difficult to control.

[0003] In the existing technology, in the corresponding steelmaking production process, problems such as many surface crack defects and deep vibration marks on the surface of high-alloy steel continuous casting billets cannot be controlled. There is pressure to control the surface quality defects of high-alloy steel casting billets, which cannot meet production needs.

[0004] In view of the above factors, a high-alloy steel continuous casting crystallizer oil protection pouring production control device is specially designed. In order to alleviate the surface quality problems of high-alloy steel, it is necessary to optimize the continuous casting process protection heat transfer operation control, alleviate the pressure on controlling surface quality defects of high-alloy steel ingots, and create favorable conditions for high-alloy steel production. Summary of the invention

[0005] The object of the present invention is to provide a high alloy steel continuous casting crystallizer oil protection pouring production control device to solve the problems raised in the above background technology.

[0006] The objective of the present invention is achieved through the following technical scheme: a high-alloy steel continuous casting crystallizer oil protection pouring production control device, comprising a containing box, a circular oil filling hole is arranged on the upper part of the containing box, and the circular oil filling hole is provided with an oil filling hole cover, and the upper part of the crystallizer containing box is arranged: a curved boost hole tube is arranged on the side of the upper part of the containing box away from the circular oil filling hole, and the curved boost hole tube is connected to an external boost pump, and an oil outlet hole is arranged at the lower part of the containing box, and the oil outlet holes are respectively connected to hard oil outlet pipes, and an oil circuit cut-off valve and a flow regulating valve are arranged on the hard oil outlet pipe, and the bottom of the hard oil outlet pipe is connected to a soft oil outlet pipe through an oil pipe quick connector, and the outlet position of the hard oil outlet pipe on the containing box and the oil pipe outlet on the oil outlet hole fixing support device are connected through a heat-proof hose.

[0007] Furthermore, a liquid level gauge is arranged on the end face of the container body, a cut-off valve is installed on the tube body of the curved boost hole tube, an air pipe quick connector is arranged in front of the valve, and the quick connector is connected to the air pipe at the other end connected to the boost pump.

[0008] Furthermore, the oil outlet fixing support device is formed by welding two square frames of different sizes, and the two square frames are both smaller than the square size of the inner wall of the crystallizer;

[0009] The two square frames of different sizes, with the small square frame on the top and the large square frame on the bottom, are welded at two height differences to form a trumpet-shaped frame with a larger bottom and a smaller top.

[0010] Furthermore, three supports parallel to the plane are respectively arranged at the front and rear frame positions of the upper small square frame, and one support parallel to the plane is respectively arranged at the left and right frame positions.

[0011] Furthermore, the crystallizer arranged on the oil outlet hole fixing support device is provided with 8 oil outlet holes, which are divided into corner oil outlet holes and surface oil outlet holes, and are respectively arranged at the middle parts of the 4 corners and 4 surfaces of the crystallizer.

[0012] Furthermore, the oil outlet holes arranged at the four corners of the crystallizer are circular and contact the right-angled parts of the corners of the crystallizer, so that the crystallizer oil flows into the corners of the crystallizer and diffuses at the corners.

[0013] Furthermore, the oil outlet holes arranged on the four surfaces of the crystallizer are located in the middle part of the surface and are in a flat slit shape, contacting the internal part of the crystallizer. The crystallizer oil is dispersed and flows into the inner wall of the crystallizer, and dispersed and flows downward between the crystallizer wall and the continuous casting billet shell.

[0014] Furthermore, the corner oil outlet holes and the surface oil outlet holes are respectively arranged at corresponding positions of the oil outlet hole fixing support device, and are oriented obliquely outward and downward so that the oil outlet holes are in contact with the inner wall of the crystallizer.

[0015] Furthermore, the oil outlet fixing support device is placed at the upper opening of the crystallizer, and the corner oil outlet holes and the surface oil outlet holes maintain the same lateral distance from the inner wall of the crystallizer.

[0016] Furthermore, the square frame of the oil outlet fixing support device has four welding connection points at the front and rear, and the separation and welding connection are performed at the left rear welding point and the right front welding point.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The invention discloses a continuous casting production control device for high alloy steel using crystallizer oil to protect the pouring, comprising a crystallizer oil containing barrel with an oil filling hole and an oil leakage pipe; a fixing bracket for fixing the oil leakage pipe; a heat-proof hose is used to connect the crystallizer oil containing oil leakage pipe and the oil leakage pipe outlet on the fixed bracket, so as to perform continuous casting production control operations lubricated by crystallizer oil; the device is applied to the protective pouring process of high alloy steel continuous casting production, solves the problem of high alloy steel surface quality control, and realizes smooth steelmaking production of high alloy steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a container body of the present invention;

[0020] Figure 2 It is a schematic diagram of the connection between the container body and the additional pump of the present invention;

[0021] Figure 3 It is a schematic diagram of the fixed support device for the oil leakage pipe outlet of the present invention;

[0022] Figure 4 It is a partially expanded and enlarged schematic diagram of the fixed support device for the oil leakage pipe outlet of the present invention;

[0023] Figure 5 It is a schematic diagram of a square frame of the present invention. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] like Figure 1-5As shown, a high-alloy steel continuous casting crystallizer oil protection pouring production control device comprises a containing box 1, a circular oil filling hole 2 is arranged on the upper part of the containing box 1, and the circular oil filling hole 2 has an oil filling hole cover, and the upper part of the crystallizer containing box is arranged: a curved boost hole tube 3 is arranged and installed on the side of the upper part of the containing box 1 away from the circular oil filling hole 2, and the curved boost hole tube 3 is connected to an external boost pump, and an oil outlet hole 4 is arranged at the lower part of the containing box 1, and the oil outlet holes 4 are respectively connected to hard oil outlet pipes 5, and an oil circuit cut-off valve 6 and a flow regulating valve 7 are arranged on the hard oil outlet pipe 5, and the bottom of the hard oil outlet pipe 5 is connected to a soft oil outlet pipe through an oil pipe quick connector 8, and the outlet position of the hard oil outlet pipe 5 on the containing box 1 is connected to the oil pipe outlet on the oil outlet hole fixing support device 8 through a heat-proof hose.

[0028] The upper part of the container body 1 is provided with a circular oil filling hole and an oil filling hole cover, which is covered after oil filling to prevent dust and other substances from falling into the crystallizer container and contaminating the crystallizer oil.

[0029] In order to facilitate quick connection and realize boost control when boost control is needed during use, a cut-off valve is installed on the tube body of the curved boost hole tube 3, and an air pipe quick connector is arranged in front of the valve, and the quick connector is connected to the air pipe at the other end connected to the boost pump.

[0030] In order to facilitate the use of the semi-square frame with four supporting points, the semi-square frame can be supported independently. When in use, the semi-square frame is placed at the upper mouth of the crystallizer to realize the function of supporting the square frame on the crystallizer. The oil outlet fixing support device is welded by two square frames of different sizes, and the two square frames are smaller than the square size of the inner wall of the crystallizer.

[0031] There are two square frames of different sizes, with the small square frame on the top and the large square frame on the bottom. The two square frames of different sizes are welded at two positions with a height difference to form a trumpet-shaped frame that is larger at the bottom and smaller at the top. Three supports parallel to the plane are respectively set at the front and rear frame positions of the upper small square frame, and one support parallel to the plane is respectively set at the left and right frame positions.

[0032] In order to facilitate the crystallizer oil to disperse and flow into the inner wall of the crystallizer and disperse and flow downward between the crystallizer wall and the continuous casting billet shell when in use, the crystallizer arranged on the oil outlet hole fixing support device is provided with 8 oil outlet holes, and the oil outlet holes are divided into corner oil outlet holes 9 and surface oil outlet holes 10, and are respectively arranged at the middle parts of the four corners and four surfaces of the crystallizer. The oil outlet holes 9 arranged at the four corners of the crystallizer are circular and contact with the right-angle parts of the corners of the crystallizer, and the crystallizer oil flows into the corners of the crystallizer and diffuses at the corners; the oil outlet holes 10 arranged at the four surfaces of the crystallizer are located in the middle part of the surface and are flat-slit shaped, contacting the internal part of the crystallizer, and the crystallizer oil disperses and flows into the inner wall of the crystallizer and disperses and flows downward between the crystallizer wall and the continuous casting billet shell.

[0033] In order to facilitate the crystallizer oil to flow downward along the inner wall of the crystallizer and flow between the crystallizer and the continuous casting billet shell during the production process, so as to achieve heat transfer and lubrication between the crystallizer and the continuous casting billet shell, the corner oil outlet holes 9 and the surface oil outlet holes 10 are respectively arranged at corresponding positions of the oil outlet hole fixing support device 8, and are directed obliquely outward and downward so that the oil outlet holes are in contact with the inner wall of the crystallizer.

[0034] In order to facilitate the installation of the oil outlet square frame support device as much as possible during use and ensure its performance, the oil outlet fixed support device 8 is placed at the upper mouth of the crystallizer, and the corner oil outlet holes 9 and the surface oil outlet holes 10 maintain the same lateral distance from the inner wall of the crystallizer.

[0035] In order to facilitate installation and use at any time when in use, the square frame of the oil outlet fixing support device 8 has four welding connection points at the front and rear, and the left rear welding point and the right front welding point are separated and welded.

[0036] There are four welding connection points at the front and rear of the square frame. The left rear welding point and the right front welding point are separated and welded to turn the square frame into two separable symmetrical semi-square frames, which are combined together to support the 8-point oil pipe openings and realize the function of dismantling at any time after a fault occurs. Due to the immersed water outlet in the middle of the square frame during the production process, the overall square frame cannot be removed at any time.

[0037] 1. Crystallizer oil container with oil filling hole and oil outlet pipe;

[0038] 1.1 Design and production of crystallizer oil container box: Design a rectangular crystallizer oil container box with a circular oil filling hole on the top and an oil filling hole cover. Cover the cover after oil filling to prevent dust and other substances from falling into the crystallizer container box and contaminating the crystallizer oil.

[0039] 1.2 Setting up the upper part of the crystallizer container: A curved boost hole pipe is installed on the upper part of the crystallizer oil container, a cut-off valve is installed on the pipe body, and an air pipe quick connector is arranged in front of the valve. The air pipe quick connector can be connected to the air pipe quick connector at the other end connected to the boost pump, and can be quickly connected when boost control is required to achieve boost control.

[0040] 1.3 Setting of the lower part of the crystallizer containing box: 8 oil outlet holes are set at the lower part of the crystallizer containing box, which are respectively connected to the hard oil outlet pipes; the oil outlet pipes are provided with oil circuit cut-off valves, flow regulating valves and oil pipe quick connectors for quick connection to the soft oil outlet pipes; the branch control and flow control of the crystallizer oil are realized.

[0041] 2. Make an oil outlet pipe outlet fixing support device for fixing the oil outlet pipe;

[0042] 2.1 Production of the fixed support device for the oil outlet: It is made of 8-point welding of 2 square frames of different sizes, and both square frames are smaller than the square size of the inner wall of the crystallizer;

[0043] The small square frame is on the top, and the large square frame is on the bottom. The square frames are welded at two positions with a height difference to form a trumpet-shaped frame device that is larger at the bottom and smaller at the top.

[0044] 2.2 Square frame support design: three supports parallel to the plane are set at the front and rear frame positions of the upper small square frame, and one support parallel to the plane is set at the left and right frame positions (this design enables the semi-square frame to have four support points, realizing the separate support of the semi-square frame). When in use, it is placed at the upper mouth of the crystallizer to realize the function of the square frame support on the crystallizer.

[0045] 2.3 Design of oil outlet hole

[0046] Each crystallizer is provided with 8 oil outlet holes, which are arranged at the four corners and the middle parts of the four faces of the crystallizer; the oil outlet holes arranged at the four corners of the crystallizer are designed to be circular and contact the right-angled parts of the corners of the crystallizer, and the crystallizer oil flows into the corners of the crystallizer and diffuses at the corners; the oil outlet holes arranged in the middle parts of the four faces of the crystallizer are designed to be flat slit-shaped and contact the internal parts of the crystallizer, and the crystallizer oil flows into the inner wall of the crystallizer in a dispersed manner and flows downward in a dispersed manner between the crystallizer wall and the shell of the continuous casting billet.

[0047] 2.4 Installation of oil outlet and square frame support device

[0048] The eight oil outlet holes are respectively arranged at the corresponding positions of the square frame supporting device, and the direction of the oil outlet holes is obliquely outward and downward, so that the oil outlet holes are in contact with the inner wall of the crystallizer, so that during the production process, the crystallizer oil flows downward along the inner wall of the crystallizer and flows between the crystallizer and the continuous casting billet shell, thereby realizing the heat transfer and lubrication effect between the crystallizer and the continuous casting billet shell.

[0049] 2.5 Realize the functional design of installation and use at any time: There are four welding connection points in the front and rear of the square frame, and the left rear welding point and the right front welding point are separated + welded to make the square frame into two separable symmetrical semi-square frames, which are combined together to support the 8-point oil pipe openings and realize the function of removal at any time after a fault occurs; due to the immersion water outlet in the middle of the square frame during the production process, the overall square frame cannot be removed at any time to prevent production changes.

[0050] 3. Installation and use of crystallizer oil protection pouring device

[0051] 3.1 Install the crystallizer oil container

[0052] Weld a crystallizer oil container support frame on the mid-pack car, install the manufactured crystallizer oil container on the support frame of the mid-pack car, and fix it firmly with bolts and buckles.

[0053] 3.2 Install the oil outlet square frame support device

[0054] Place the prepared square frame support device for the oil outlet holes at the upper opening of the crystallizer so that the eight oil outlet holes maintain the same horizontal distance from the inner wall of the crystallizer.

[0055] 3.3 Connecting the crystallizer oil container and the oil outlet device

[0056] Connect the prepared heat-proof hose with quick connectors at both ends to the crystallizer oil leakage pipe and the oil leakage pipe outlet on the square frame support device of the oil outlet hole, and debug the oil outlet control through the oil outlet pipe cut-off valve and flow regulating valve to make the oil output of the 8 oil outlet holes consistent and meet the oil volume requirement of the crystallizer for production; adopt crystallizer oil lubrication for continuous casting production control operation.

[0057] 3.4 Oscillation marks of mold oil and protective slag in casting

[0058] Compared with casting with mold oil and protective slag, the vibration marks on the surface of the ingot casted with mold oil protection are shallower. The continuous casting ingot produced by continuous casting machine protection casting with crystallizer oil has no transverse and longitudinal cracks and the surface quality of the ingot is excellent.

[0059] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0060] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high alloy steel continuous casting crystallizer oil protection pouring production control device, characterized in that: The invention comprises a container body (1), wherein a circular oil filling hole (2) is arranged on the upper part of the container body (1), and the circular oil filling hole (2) is provided with an oil filling hole cover, and the upper part of the crystallizer container body is provided with: a curved boost hole tube (3) is arranged and installed on the side of the upper part of the container body (1) away from the circular oil filling hole (2), and the curved boost hole tube (3) is connected to an external boost pump, and an oil outlet hole (4) is arranged on the lower part of the container body (1), and the oil outlet holes (4) are respectively connected to hard oil outlet pipes (5), and an oil circuit cut-off valve (6) and a flow regulating valve (7) are arranged on the hard oil outlet pipe (5), and the bottom of the hard oil outlet pipe (5) is connected to a soft oil outlet pipe through an oil pipe quick connector, and the outlet position of the hard oil outlet pipe (5) on the container body (1) is connected to the oil pipe outlet on the oil outlet hole fixing support device (8) through a heat-proof hose; A liquid level gauge (11) is provided on the end surface of the container body (1), a cut-off valve is installed on the body of the curved boost hole tube (3), an air pipe quick connector is provided in front of the valve, and the quick connector is connected to the air pipe at the other end connected to the boost pump; The oil outlet fixing support device is formed by welding two square frames of different sizes, and the two square frames are both smaller than the square size of the inner wall of the crystallizer; In the two square frames of different sizes, the small square frame is on the top and the large square frame is on the bottom. The two square frames of different sizes are welded at two positions with a height difference to form a trumpet-shaped frame with a larger bottom and a smaller top. The corner oil outlet holes (9) and the surface oil outlet holes (10) are respectively arranged at corresponding positions of the oil outlet hole fixing support device (8), and are oriented obliquely outward and downward so that the oil outlet holes are in contact with the inner wall of the crystallizer; The oil outlet hole fixing support device (8) is placed at the upper opening of the crystallizer, and the corner oil outlet hole (9) and the surface oil outlet hole (10) maintain the same lateral distance from the inner wall of the crystallizer.

2. The high alloy steel continuous casting crystallizer oil protection pouring production control device according to claim 1 is characterized in that: The square frame of the oil outlet fixing support device (8) has four welding connection points at the front and rear, and separation and welding connection are performed at the left rear welding point and the right front welding point.

3. The high alloy steel continuous casting crystallizer oil protection pouring production control device according to claim 2 is characterized in that: Three supports parallel to the plane are respectively arranged at the front and rear frame positions of the upper small square frame, and one support parallel to the plane is respectively arranged at the left and right frame positions.

4. The high alloy steel continuous casting crystallizer oil protection pouring production control device according to claim 3 is characterized in that: The crystallizer arranged on the oil outlet hole fixing support device is provided with 8 oil outlet holes, which are divided into corner oil outlet holes (9) and surface oil outlet holes (10), and are respectively arranged at the middle parts of the four corners and four surfaces of the crystallizer.

5. The high alloy steel continuous casting crystallizer oil protection pouring production control device according to claim 4 is characterized in that: The oil outlet holes (9) arranged at the four corners of the crystallizer are circular and contact the right-angled parts of the corners of the crystallizer. The crystallizer oil flows into the corners of the crystallizer and diffuses at the corners.

6. The high alloy steel continuous casting crystallizer oil protection pouring production control device according to claim 5 is characterized in that: The oil outlet holes (10) arranged on the four surfaces of the crystallizer are located in the middle of the surfaces and are in the shape of flat slits, contacting the inner part of the crystallizer. The crystallizer oil is dispersed and flows onto the inner wall of the crystallizer, and dispersed and flows downward between the crystallizer wall and the shell of the continuous casting billet.

7. The high alloy steel continuous casting crystallizer oil protection pouring production control device according to claim 6 is characterized in that: The square frame of the oil outlet fixing support device (8) has four welding connection points at the front and rear, and separation and welding connection are performed at the left rear welding point and the right front welding point.

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