Filling device for ladle filler sand

Abstract

The utility model relates to the technical field of ferrous metallurgy, and discloses a ladle filler sand filling device which comprises a filler sand guide pipe, a connecting part, an observation part and a steel pipe, the pipe diameter of the filler sand guide pipe is smaller than that of the steel pipe, and the lower end of the filler sand guide pipe is connected with the upper end of the steel pipe through the connecting part. And the observation part is arranged on the connecting part and is used for observing spreading surface information of the stuffing sand in the steel pipe space. When the filling device for the ladle filler sand is applied, an operator can observe the filling condition of the filler sand through the observation part, timely adjustment is facilitated, the filler sand guide pipe is timely lifted to avoid waste of the filler sand, and after filling of the filler sand is completed, the filling quality of the filler sand is effectively guaranteed; the problems that consumption is increased, filling quality is unstable and self-opening and molten steel purity are affected due to the fact that the spreading face of the stuffing sand is large can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel metallurgy, in particular to a filling device for ladle drainage sand. Background Art

[0002] In the steel and metallurgical industry, the ladle self-opening rate is an important production process control indicator. If the ladle does not open automatically, oxygen drainage is required. On the one hand, it increases the labor intensity of employees and increases the safety risks of burns and scalds. On the other hand, there are hidden dangers in the quality of secondary oxidation. At the same time, improper filling of drainage sand may enter the molten steel and contaminate the molten steel. Therefore, improving the ladle self-opening rate and reducing or even eliminating the entry of drainage sand into the casting process is a topic that requires continuous improvement in production process control.

[0003] The existing patent (publication number: CN207288879U) discloses a ladle drainage sand delivery device, including a storage trough located on the ground, a hydraulic cylinder fixedly connected in the storage trough, an electric turntable fixedly connected on the top of the hydraulic cylinder, a loading plate fixedly connected on the top of the electric turntable, a groove provided on the top of the loading plate, guide rails located on the ground are provided on both sides of the loading plate, a loading trolley is slidably connected on the guide rails, the loading trolley includes a bottom plate, a roller fixedly connected to the bottom of the bottom plate, a support rod fixedly connected to the top of the bottom plate and a top plate fixedly connected to the top of the support rod, a first connecting channel and a second connecting channel are respectively provided on the bottom plate and the top plate, a ladle is overlapped in the second connecting channel, a horizontal partition is provided above the ladle, which can effectively fill the inside of the ladle, and the drainage sand entering the inside of the ladle is evenly laid, ensuring the life safety of the staff, but there are problems of large drainage sand spreading consumption and unstable drainage sand filling quality.

[0004] Therefore, how to provide a device that can avoid the increased consumption and unstable filling quality caused by a large drainage sand spreading surface is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] The purpose of the utility model is to provide a filling device for drainage sand of a ladle. When using the filling device for drainage sand of the ladle, the operator can observe the filling situation of the drainage sand through the observation part, so as to make timely adjustments and lift the drainage sand conduit in time to avoid waste of drainage sand. After the drainage sand is filled, the filling quality of the drainage sand is effectively guaranteed, and the increased consumption caused by the large spreading surface of the drainage sand, the unstable filling quality, and the influence on the self-opening and the purity of the molten steel can be effectively avoided.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0007] A device for filling ladle drainage sand comprises: a drainage sand conduit, a connecting portion, an observation portion, and a steel pipe. The diameter of the drainage sand conduit is smaller than the diameter of the steel pipe. The lower end of the drainage sand conduit is connected to the upper end of the steel pipe via the connecting portion. The observation portion is provided on the connecting portion and is used to observe the spreading surface information of the drainage sand in the steel pipe space.

[0008] When the above-mentioned ladle drainage sand filling device is in use, the operator can observe the spreading surface of the drainage sand in the space inside the steel pipe and the filling situation of the drainage sand through the observation part outside the ladle drainage sand filling device. Therefore, timely adjustments can be made according to the filling situation, and the drainage sand conduit can be lifted in time to avoid waste of drainage sand. After the drainage sand is filled, the filling quality of the drainage sand is effectively guaranteed, and the problems of increased consumption, unstable filling quality, and impact on self-opening and molten steel purity caused by the large spreading surface of the drainage sand can be effectively alleviated or even avoided.

[0009] Optionally, the connecting portion is composed of a plurality of ribs, and around the circumference of the sand drainage conduit, there is a gap between at least two adjacent ribs to form the observation portion.

[0010] Optionally, around the circumferential direction of the drainage sand conduit, there is a gap between every two adjacent rib plates, and each gap constitutes an observation portion.

[0011] Optionally, each of the observation portions is provided with a transparent shielding plate.

[0012] Optionally, the rib plate is a steel plate, and the thickness of the rib plate is 2.5 mm to 3.5 mm.

[0013] Optionally, the thickness of the steel pipe is 4.5 mm to 5.5 mm.

[0014] Optionally, the inner diameter of the steel pipe is consistent with the inner diameter of the ladle nozzle seat brick. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of this application are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention.

[0016] Figure 1 A front view of a ladle drainage sand filling device provided by an embodiment of the utility model;

[0017] Figure 2 A top view of a device for filling ladle drainage sand provided in an embodiment of the utility model.

[0018] Icon: 1-drainage sand catheter; 2-connecting part; 3-steel pipe; 4-observation part. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with examples. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as part of one embodiment can be used in another embodiment to produce yet another embodiment. Therefore, it is intended that the present invention encompass such modifications and variations as come within the scope of the appended claims and their equivalents.

[0020] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention. The terms "connected", "connected", and "set" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0021] refer to Figure 1 and Figure 2As shown, the utility model provides a filling device for ladle drainage sand, which is used to be placed above the ladle water inlet and aligned with the ladle water inlet seat brick. Specifically, the filling device for ladle drainage sand includes: a drainage sand conduit 1, a connecting part 2, an observation part 4 and a steel pipe 3. The diameter of the drainage sand conduit 1 is smaller than the diameter of the steel pipe 3, the inner diameter of the drainage sand conduit 1 is smaller than the inner diameter of the steel pipe 3, and the outer diameter of the drainage sand conduit 1 is also smaller than the outer diameter of the steel pipe 3. Preferably The wall thickness of the drainage sand conduit 1 can be set to be the same as or different from the wall thickness of the steel pipe 3, wherein the drainage sand conduit 1 and the steel pipe 3 are coaxially arranged, and the drainage sand conduit 1 and the steel pipe 3 are arranged in the extension direction of the axial centerline of the drainage sand conduit 1, the drainage sand conduit 1 is above the steel pipe 3, and the lower end of the drainage sand conduit 1 is connected to the upper end of the steel pipe 3 through the connecting part 2, and the observation part 4 is arranged on the connecting part 2, and the observation part 4 is used to observe the spreading surface information of the drainage sand in the space of the steel pipe 3. Thus, the steel pipe 3 is aligned with the nozzle seat brick to ensure that the inner diameter of the steel pipe 3 is aligned with the inner diameter of the nozzle seat brick, and drainage sand is added from above the drainage sand conduit 1. The operator can observe the spreading surface of the drainage sand in the space inside the steel pipe 3 and the filling situation of the drainage sand through the observation part 4 outside the ladle drainage sand filling device, and can make timely adjustments according to the filling situation, and lift the drainage sand conduit in time to avoid waste of drainage sand. After observing that the drainage sand has been completely filled, the drainage sand conduit is lifted to complete the sand filling. After the drainage sand is filled, the filling quality of the drainage sand is effectively guaranteed, and the problems of increased consumption, unstable filling quality, and impact on self-opening and molten steel purity caused by the large spreading surface of the drainage sand are effectively alleviated or even avoided.

[0022] In one possible implementation, Figure 1 and Figure 2 As shown, the connection part 2 can be provided with a plurality of rib plates, which can be steel plates, and the thickness of the rib plates is 2.5mm to 3.5mm. For example, the rib plates can be made of Q235 steel plates with a thickness of 3mm and a width of 40mm; wherein, one end of each rib plate is connected to the lower end of the drainage sand conduit 1, and the other end is connected to the upper end of the steel pipe 3, and multiple rib plates are distributed in the circumferential direction of the axis of the drainage sand conduit 1, and there is a gap between at least two adjacent rib plates in the circumferential direction of the axis of the drainage sand conduit 1, and the gap forms an observation part 4, that is, at least one observation part 4 is provided in the circumferential direction of the drainage sand conduit 1, so that the operator can observe the filling condition of the drainage sand in the steel pipe.

[0023] Furthermore, in order to more conveniently observe the filling condition of the drainage sand in the steel pipe, there is a gap between each two adjacent ribs in the circumferential direction around the axis of the drainage sand conduit 1, and each gap constitutes an observation portion 4. A plurality of observation portions are provided in the circumferential direction of the drainage sand conduit 1, and the plurality of observation portions are distributed in the circumferential direction of the drainage sand conduit 1, so that the operator can conveniently observe the filling condition of the drainage sand in the steel pipe in multiple directions, which is convenient for observation and convenient for the operator to make timely adjustments. For example, Figure 2 As shown, three ribs can be provided, and the three ribs are evenly spaced and distributed in the circumferential direction of the drainage sand conduit, and there are also three observation parts, which makes it convenient for the operator to observe the filling condition of the drainage sand in the steel pipe from different directions.

[0024] Among them, reference Figure 2 As shown, in order to prevent external debris from falling into the steel pipe, a transparent shielding plate is provided on each observation part 4. The transparent shielding plate can cover the observation part 4, completely seal the observation part 4, and allow light to pass through, so that the operator can observe the filling situation in the steel pipe and ensure the filling quality of the drainage sand.

[0025] As a specific setting, the wall thickness of the steel pipe 3 is 4.5mm to 5.5mm, and specifically, the wall thickness of the steel pipe can be 4.8mm, 5mm, or 5.2mm. The length of the steel pipe can be 180mm to 220mm, and specifically, the length can be 190mm, 200mm, or 210mm, and the steel pipe can be made of Q235 material.

[0026] Specifically, in the above-mentioned ladle drainage sand filling device, the inner diameter of the steel pipe 3 is consistent with the inner diameter of the ladle nozzle seat brick, and the inner diameter of the steel pipe is the same as the inner diameter of the ladle nozzle seat brick. After alignment, the inner diameters can be aligned, which facilitates the drainage sand to flow downward and fill, and avoids leakage and waste of drainage sand.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for filling ladle drainage sand, characterized in that: include: A drainage sand conduit (1), a connecting portion (2), an observation portion (4) and a steel pipe (3); the diameter of the drainage sand conduit (1) is smaller than the diameter of the steel pipe (3); the lower end of the drainage sand conduit (1) is connected to the upper end of the steel pipe (3) via the connecting portion (2); the observation portion (4) is arranged on the connecting portion (2) and is used to observe the spreading surface information of the drainage sand in the space of the steel pipe (3).

2. The ladle drainage sand filling device according to claim 1, characterized in that: The connecting portion (2) is composed of a plurality of ribs, and a gap is provided between at least two adjacent ribs in the circumferential direction around the axis of the sand drainage conduit (1) to form the observation portion (4).

3. The ladle drainage sand filling device according to claim 2, characterized in that: In the circumferential direction around the axis of the sand drainage conduit (1), there is a gap between each two adjacent rib plates, and each gap constitutes an observation portion (4).

4. The ladle drainage sand filling device according to claim 2, characterized in that: Each of the observation parts (4) is provided with a transparent shielding plate.

5. The ladle drainage sand filling device according to claim 2, characterized in that: The rib plate is a steel plate, and the thickness of the rib plate is 2.5 mm to 3.5 mm.

6. The ladle drainage sand filling device according to claim 1, characterized in that: The thickness of the steel pipe (3) is 4.5 mm to 5.5 mm.

7. The ladle drainage sand filling device according to claim 1, characterized in that: The inner diameter of the steel pipe (3) is consistent with the inner diameter of the ladle nozzle seat brick.

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