Auxiliary cover plate device convenient to replace for continuous casting crystallizer cover plate

Abstract

The utility model belongs to the technical field of steelmaking equipment, and discloses an auxiliary cover plate device convenient to replace for a continuous casting crystallizer cover plate. The auxiliary cover plate device is connected with a large cover plate of the crystallizer, namely a cover plate of the continuous casting crystallizer, in a clamping and positioning column mode, a crane does not need to be used for hoisting and re-installation alignment, the replacement process is greatly simplified, and the replacement time is shortened. Besides, the shape of the device body is matched with the shape of the feeding through hole of the continuous casting crystallizer cover plate, and the device body can be tightly clamped in the feeding through hole, so that the device can meet the requirements of cover plates with different specifications and sizes, and the device is convenient to use under the condition that the whole cover plate is not replaced. And the size of the feeding through hole can be changed by adjusting the device, so that different process production requirements are met, and the production flexibility is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of steelmaking equipment, especially relates to a convenient replacement of the sub - cover plate device of continuous casting crystallizer cover plate. BACKGROUND

[0002] Continuous casting technology is an important production technology in modern metallurgical industry, which realizes high efficiency, energy saving and environmental protection of steel production by continuously casting high-temperature molten steel into casting blank. In the continuous casting process, the crystallizer is one of the key components, which directly affects the quality and production efficiency of the casting blank. The performance, structure design and function of the crystallizer cover plate, as an important part of the crystallizer, have important influence on the efficiency and product quality of the crystallization process.

[0003] In the current pouring process, the tundish containing molten steel is arranged directly above the crystallizer, and then the water outlet of the tundish is closely connected with the feed inlet of the crystallizer, and then the molten steel in the tundish is discharged into the crystallizer. Due to different needs of production, such as the change of the diameter of the water outlet of the tundish, etc., it is necessary to replace the cover plate provided with smaller size cover plate feed hole, so the types of cover plates are various, and the replacement of cover plates of different specifications and sizes needs to be frequently carried out according to the working conditions.

[0004] At present, the traditional replacement method is to use the crane to hoist, and then the new crystallizer cover plate to be replaced is hoisted to the crystallizer. This kind of operation needs to find the installation position again after each replacement, and the weight of the crystallizer cover plate is heavy, so the actual operation is very cumbersome, the labor intensity is improved, and the replacement time is long, which seriously affects the production speed of the steel billet and greatly reduces the production efficiency.

[0005] Therefore, an apparatus is needed to reduce the replacement time of the crystallizer cover plate and improve the production efficiency. SUMMARY

[0006] The utility model discloses a kind of sub-cover plate devices of continuous casting crystallizer cover plate, which is easy to replace.

[0007] The technical scheme for solving the technical problems of the utility model is as follows:

[0008] The utility model provides a kind of conveniently replaced sub-cover plate device of continuous casting crystallizer cover plate, and continuous casting crystallizer cover plate is closely detachable with continuous casting crystallizer and is connected and is arranged, continuous casting crystallizer is arranged along vertical direction, continuous casting crystallizer cover plate is arranged along horizontal direction, the top of continuous casting crystallizer is provided with feed inlet, and feed through hole is made by being integrally recessed downward on continuous casting crystallizer cover plate, feed through hole is arranged along vertical direction, and the bottom of feed through hole is integrally made into protruding ring by protruding inward on the continuous casting crystallizer cover plate, the diameter of protruding ring is less than the diameter of feed inlet, feed through hole, and protruding ring is arranged, and it is detachably arranged to be closely opposite up and down, material can enter into the feed inlet of continuous casting crystallizer by feed through hole;

[0009] The sub-cover plate device can be detachably connected with the continuous casting crystallizer cover plate.

[0010] A positioning column is connected and arranged on the upper part of the continuous casting crystallizer cover plate of the feed through hole, and the positioning column is arranged along the horizontal direction.

[0011] The sub-cover plate device comprises a device body, a variable-diameter through hole, a clamping groove and a handle recess, the device body is arranged along the horizontal direction, the shape of the device body is consistent with the shape of the feed through hole of the continuous casting crystallizer cover plate, the device body can be closely clamped in the feed through hole, the lower bottom surface of the device body is detachably arranged on the upper surface of the protruding ring, and the upper surface of the device body is flush with the upper surface of the continuous casting crystallizer cover plate.

[0012] A variable-diameter through hole is integrally made in the device body, the variable-diameter through hole is arranged along the vertical direction, and the variable-diameter through hole extends downward from the upper surface of the device body to the lower surface of the device body along the vertical direction, the diameter of the variable-diameter through hole is smaller than the diameter of the device body, the variable-diameter through hole is arranged directly above the feed inlet of the continuous casting crystallizer, and the shape of the variable-diameter through hole is matched with the shape of the water outlet of the tundish, the water outlet of the tundish can be closely and detachably arranged in the variable-diameter through hole, and the geometric center of the variable-diameter through hole is offset to one side along the horizontal line.

[0013] The clamping groove is arranged on the device body away from the other side of the variable-diameter through hole, the clamping groove is arranged along the vertical direction, and the clamping groove is matched with the positioning column, and the positioning column can be detachably clamped on the clamping groove.

[0014] A handle recess is integrally recessed inward in the device body outside the middle of the variable-diameter through hole.

[0015] Further, a plurality of weight-reducing blind holes are arranged at intervals in the circumferential direction on the lower bottom surface of the device body outside the variable-diameter through hole, and the weight-reducing blind holes are upwardly protruding from the lower bottom surface of the device body.

[0016] Further, the material of the device body is made of radiation-resistant material.

[0017] The utility model discloses the advantages and positive effect that obtain for

[0018] 1, this deputy cover plate device is connected with the continuous casting crystallizer cover plate through the mode of clamping and positioning column with the crystallizer big cover plate, need not use the crane and reinstallation alignment, greatly simplify the replacement process, shorten the replacement time, in addition, the shape of the device body is consistent with the shape of the feeding through -hole of the continuous casting crystallizer cover plate, and the device body can be tightly clamped in the feeding through -hole, therefore, the device can adapt to the cover plate demand of different specifications and sizes, under the condition that the whole cover plate is not replaced, the size of the feeding through -hole can be changed through adjusting the device, different process production needs are satisfied, and the production flexibility is enhanced.

[0019] 2, the variable diameter through -hole of the device is reasonable in design, and the horizontal section area is less than the horizontal section area of the device body and not less than the horizontal section area of the tundish water outlet, can correctly guide the molten steel to flow into the crystallizer, guarantee the stability and efficiency of the production process, the detachable connection mode of the clamping groove and the positioning column is adopted, so that the installation and dismounting process becomes simple and fast, and the operation difficulty and the labor intensity of workers are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure connection overhead view schematic drawing of the utility model deputy cover plate device,

[0021] Figure 2 It is Figure 1 Structure connection overhead view schematic drawing of the utility model,

[0022] Figure 3 It is Figure 1 Structure connection overhead view schematic drawing of the utility model,

[0023] Figure 4 It is a structure connection overhead view schematic drawing of the utility model continuous casting crystallizer cover plate provided with the positioning column,

[0024] Figure 5 It is a structure connection overhead view schematic drawing of the utility model deputy cover plate device and the continuous casting crystallizer cover plate provided with the positioning column,

[0025] Figure 6 It is a structure connection overhead view schematic drawing of the utility model deputy cover plate device and the continuous casting crystallizer cover plate provided with the positioning column,

[0026] Figure 7 It is a structure connection overhead view schematic drawing of the utility model deputy cover plate device and the continuous casting crystallizer cover plate provided with the positioning column, DETAILED DESCRIPTION

[0027] The application will be further described in connection with specific examples, the following examples are only descriptive, not limiting, and cannot limit the protection scope of the application.

[0028] The raw materials used in the application are conventional commercially available products, the methods used in the application are conventional methods in the art, and the quality of each substance used in the application is conventional quality.

[0029] A kind of convenient replacement of continuous casting crystallizer cover plate's sub-cover plate device, continuous casting crystallizer cover plate 5 is closely detachable with continuous casting crystallizer (not shown in the figure) connection setting, continuous casting crystallizer is arranged along vertical direction, continuous casting crystallizer cover plate is arranged along horizontal direction, the top of continuous casting crystallizer is provided with feed inlet (not shown in the figure), as shown in Figures 4 to 7 The feed hole is arranged along the vertical direction, and the bottom of the feed hole is integrally formed with a protruding ring 9, the diameter of the protruding ring is smaller than the diameter of the feed inlet and the feed hole, and the protruding ring is arranged to further ensure the tightness of the continuous casting crystallizer cover plate and the feed inlet of the crystallizer.

[0030] The innovation of the utility model lies in:

[0031] As shown in Figures 1 to 7 The sub-cover plate device can be detachably connected with the continuous casting crystallizer cover plate;

[0032] A positioning column 6 is arranged on the upper part of the continuous casting crystallizer cover plate of the feed hole, and the positioning column is arranged along the horizontal direction.

[0033] The sub-cover plate device comprises a device body 1, a variable-diameter hole 2, a clamping groove 3 and a handle recess 4, the device body is arranged along the horizontal direction, the shape of the device body is consistent with the shape of the feed hole of the continuous casting crystallizer cover plate, and the device body can be tightly clamped in the feed hole, the lower bottom surface of the device body is detachably arranged on the upper surface of the protruding ring, and the upper surface of the device body is flush with the upper surface of the continuous casting crystallizer cover plate, so that the upper surfaces of the sub-cover plate device and the continuous casting crystallizer cover plate are on the same plane, without affecting the normal operation of the cover plate. The device body and the feed hole are tightly and detachably arranged together, and the installation and disassembly are convenient;

[0034] The device body is integrally formed with a variable-diameter through hole arranged in a vertical direction and extending from the upper surface of the device body to the lower surface of the device body, the diameter of the variable-diameter through hole is smaller than the diameter of the device body, the variable-diameter through hole is arranged directly above the feeding port of the continuous casting crystallizer, and the shape of the variable-diameter through hole is matched with the shape of the water outlet (not shown in the figure) of the tundish, so that the water outlet of the tundish can be closely and detachably arranged in the variable-diameter through hole, thereby facilitating the tundish to discharge into the crystallizer through the variable-diameter through hole, guiding the molten steel to flow into the crystallizer correctly, realizing the variable-diameter of the feeding through hole of the continuous casting crystallizer cover plate, reducing the size of the feeding through hole, and meeting the use requirement; the geometric center of the variable-diameter through hole is arranged on one side of the horizontal line, facilitating the taking of the device and improving the strength of the device.

[0035] The clamping groove is arranged on the other side of the device body away from the variable-diameter through hole, and is arranged in a vertical direction and matched with the positioning column, so that the positioning column can be detachably clamped on the clamping groove, and the device body can be detachably arranged with the continuous casting crystallizer cover plate through the clamping groove and the positioning column, the arrangement of the clamping groove ensures the accuracy of the installation position of the device body and the continuous casting crystallizer cover plate, and also enhances the stability of the sub-cover plate device during use, improving the production effect.

[0036] The device body is integrally formed with a variable-diameter through hole arranged in a vertical direction and extending from the upper surface of the device body to the lower surface of the device body, the diameter of the variable-diameter through hole is smaller than the diameter of the device body, the variable-diameter through hole is arranged directly above the feeding port of the continuous casting crystallizer, and the shape of the variable-diameter through hole is matched with the shape of the water outlet (not shown in the figure) of the tundish, so that the water outlet of the tundish can be closely and detachably arranged in the variable-diameter through hole, thereby facilitating the tundish to discharge into the crystallizer through the variable-diameter through hole, guiding the molten steel to flow into the crystallizer correctly, realizing the variable-diameter of the feeding through hole of the continuous casting crystallizer cover plate, reducing the size of the feeding through hole, and meeting the use requirement; the geometric center of the variable-diameter through hole is arranged on one side of the horizontal line, facilitating the taking of the device and improving the strength of the device.

[0037] The device body is integrally formed with a variable-diameter through hole arranged in a vertical direction and extending from the upper surface of the device body to the lower surface of the device body, the diameter of the variable-diameter through hole is smaller than the diameter of the device body, the variable-diameter through hole is arranged directly above the feeding port of the continuous casting crystallizer, and the shape of the variable-diameter through hole is matched with the shape of the water outlet (not shown in the figure) of the tundish, so that the water outlet of the tundish can be closely and detachably arranged in the variable-diameter through hole, thereby facilitating the tundish to discharge into the crystallizer through the variable-diameter through hole, guiding the molten steel to flow into the crystallizer correctly, realizing the variable-diameter of the feeding through hole of the continuous casting crystallizer cover plate, reducing the size of the feeding through hole, and meeting the use requirement; the geometric center of the variable-diameter through hole is arranged on one side of the horizontal line, facilitating the taking of the device and improving the strength of the device.

[0038] The present cover plate device is connected with the crystallizer large cover plate, i.e. the continuous casting crystallizer cover plate, by the way of clamping and positioning column, without using crane for hoisting and re-installing alignment, greatly simplifying the replacement process and shortening the replacement time. In addition, the shape of the device body is consistent with the shape of the feedthrough hole of the continuous casting crystallizer cover plate, and the device body can be tightly clamped in the feedthrough hole, so that the device can adapt to the cover plate requirements of different specifications and sizes, and by adjusting the device, the size of the feedthrough hole can be changed without replacing the entire cover plate, meeting the needs of different process production, and enhancing the flexibility of production.

[0039] The variable-diameter through hole of the device is designed reasonably, the horizontal cross-sectional area is smaller than the horizontal cross-sectional area of the device body and not less than the horizontal cross-sectional area of the tundish outlet, which can correctly guide the molten steel to flow into the crystallizer, ensuring the stability and efficiency of the production process. The device adopts the detachable connection mode of clamping groove and positioning column, making the installation and disassembly process simple and fast, reducing the operation difficulty and labor intensity of workers.

[0040] In the present embodiment, a plurality of weight-reducing blind holes 8 are arranged on the lower bottom surface of the device body in the circumferential direction, and the weight-reducing blind holes are arranged protruding upward from the lower bottom surface of the device body. The arrangement of the weight-reducing blind holes can greatly reduce the weight of the device body, facilitating the operation of the workers.

[0041] In the present embodiment, the material of the device body is an anti-radiation material, which can protect the safety of workers during work.

[0042] Although the embodiments of the present application are disclosed for the purpose of illustration, those skilled in the art can understand that various alternatives, changes and modifications are possible without departing from the spirit and scope of the present application and the appended claims, therefore, the scope of the present application is not limited to the disclosed content of the embodiments.

Claims

1. A convenient replacement of the cover plate of the continuous casting crystallizer cover plate device, the continuous casting crystallizer cover plate is closely detachable connected with the continuous casting crystallizer, the continuous casting crystallizer is arranged along the vertical direction, the continuous casting crystallizer cover plate is arranged along the horizontal direction, the top of the continuous casting crystallizer is provided with a feeding port, the feeding through hole is made by the integral downward recess on the continuous casting crystallizer cover plate, the feeding through hole is arranged along the vertical direction, and the bottom of the feeding through hole is integrally made into a convex ring by the inward convex of the continuous casting crystallizer cover plate, the diameter of the convex ring is smaller than the diameter of the feeding port and the feeding through hole, the convex ring is arranged, and the upper and lower closely opposite detachable arrangement, the material can enter into the feeding port of the continuous casting crystallizer through the feeding through hole, characterized in that: The cover plate device can be detachably connected with the continuous casting crystallizer cover plate; A positioning column is arranged on the upper part of the continuous casting crystallizer cover plate of the feeding through hole, and the positioning column is arranged along the horizontal direction; The device body is arranged along the horizontal direction, the shape of the device body is consistent with the shape of the feeding through hole of the continuous casting crystallizer cover plate, the device body can be closely engaged in the feeding through hole, the lower bottom surface of the device body is closely detachable arranged on the upper surface of the convex ring, and the upper surface of the device body is flush with the upper surface of the continuous casting crystallizer cover plate; The variable diameter through hole is integrally made in the device body, the variable diameter through hole is arranged along the vertical direction, and the variable diameter through hole extends downward from the upper surface of the device body to the lower surface of the device body along the vertical direction, the diameter of the variable diameter through hole is smaller than the diameter of the device body, the variable diameter through hole is arranged above the feeding port of the continuous casting crystallizer, and the shape of the variable diameter through hole is matched with the shape of the water outlet of the tundish, the water outlet of the tundish can be closely detachable arranged in the variable diameter through hole, and the geometric center of the variable diameter through hole is offset arranged along the horizontal line direction; The clamping groove is arranged on the device body away from the other side of the variable diameter through hole, the clamping groove is arranged along the vertical direction, and the clamping groove is matched with the positioning column, and the positioning column can be detachably engaged on the clamping groove; The handle recess is integrally recessed in the device body outside the variable diameter through hole.

2. A secondary cover plate device for easy replacement of a cover plate of a continuous casting mold according to claim 1, characterized in that: A plurality of weight reduction blind holes are arranged on the lower bottom surface of the device body outside the variable diameter through hole, and the weight reduction blind holes are upwardly protruding from the lower bottom surface of the device body.

3. A secondary cover plate arrangement for facilitating the replacement of a cover plate of a continuous casting mould according to any one of claims 1 to 2, characterised in that: The material of the device body is made of anti-radiation material.

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