Improved slagging device for a continuous casting mould

Abstract

The application relates to the field of steel production, in particular to an improved continuous casting crystallizer slagging device, which comprises a rack, a hopper arranged on the rack, an inlet A arranged above the hopper, and a discharge pipe A arranged below the hopper; a screw conveyor fixed on the rack and arranged below the hopper, an inlet pipe B of the screw conveyor communicated with the inlet A, a temperature gauge inserted at the discharge pipe A, and a partition heating assembly arranged in the hopper, wherein the partition heating assembly comprises multiple partition plates, the partition plates are heat-conducting plates, the partition plates are inserted into the hopper, and heating plates are fixedly connected to the partition plates. The improved continuous casting crystallizer slagging device can divide the hopper into multiple chambers through the partition heating assembly, and the heating plates arranged on the partition plates can heat the protective slag to meet the use requirements.

Description

Technical Field

[0001] This invention relates to the field of steel production, and more specifically to an improved slag-adding device for continuous casting crystallizers. Background Technology

[0002] In steelmaking continuous casting, protective slag is an important auxiliary production material. Currently, most steel plants use a hopper for slag feeding, with a screw conveyor connected to the outlet below the hopper to deliver the protective slag into the continuous casting feed port. Since it comes into direct contact with molten steel, steel plants have strict quality requirements regarding the moisture content of the protective slag to ensure its quality and performance meet process requirements. The conventional practice is to heat the protective slag before use to a specified temperature, typically 60-80℃. However, heating the protective slag before use is inconvenient, and manually adding the heated slag to the hopper can pose safety hazards due to slag splashing. Summary of the Invention

[0003] The improved slag feeding device for continuous casting crystallizer of this utility model divides the hopper into multiple compartments by setting up a partition heating component. A heating plate is set on the partition plate to heat the protective slag to meet the usage requirements.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] The improved slag feeding device for continuous casting crystallizer includes,

[0006] A frame, on which a hopper is provided, with a feed inlet A above the hopper and a discharge pipe A below it;

[0007] A screw conveyor, fixed to a frame and positioned below the hopper, wherein the feed inlet A is connected to the feed pipe B of the screw conveyor.

[0008] The hopper is equipped with a partition heating assembly, and a thermometer is inserted at the discharge pipe A.

[0009] The partition heating assembly includes multiple partition plates, each of which is a heat-conducting plate. The partition plates are inserted into the hopper, and a heating plate is fixedly connected to each partition plate.

[0010] Furthermore, the partition plate is arranged in a U-shape and inserted into the hopper to a depth of 1 / 2 to 2 / 3 of the hopper's depth.

[0011] Furthermore, a support groove is provided at the upper opening of the hopper, and a filter screen is placed on the support groove.

[0012] Furthermore, a handle A is provided on the filter screen.

[0013] Furthermore, a hopper cover is provided on the upper part of the hopper, and a handle B is provided on the hopper cover.

[0014] Furthermore, multiple hoppers are arranged side by side above the same screw conveyor, and an electric valve is provided between the feed inlet A and the feed pipe B of the screw conveyor.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This patent uses a partitioned heating assembly. Multiple heating plates are installed inside the hopper to heat the protective slag at multiple points. The heat conduction between the protective slag particles ensures that the slag is heated to the required temperature. In order to reduce the impact of agglomerated materials on the protective slag, a filter screen is installed on the hopper to filter out the agglomerated protective slag. The use of multiple hoppers to heat the protective slag achieves a multi-purpose, one-use-multiple-supplements effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a top view of the hopper structure of this utility model. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figures 1-2 As shown, the improved slag feeding device for a continuous casting crystallizer includes,

[0021] A frame 10 is provided with a hopper 101, an inlet A1011 is provided above the hopper 101, and a discharge pipe A1012 is provided below the hopper 101.

[0022] A screw conveyor 20 is fixed to the frame 10 and positioned below the hopper 101. The discharge pipe A1012 is connected to the feed pipe B201 of the screw conveyor 20.

[0023] The hopper 101 is equipped with a partition heating component 102, and a thermometer 103 is inserted at the discharge pipe A1012. The thermometer 103 can be a thermocouple thermometer (which can transmit the temperature signal to the central control for easy monitoring. This is a conventional technical means and will not be described in detail here).

[0024] The partition heating assembly 102 includes multiple partition plates 1021, each of which is a heat-conducting plate. The partition plates 1021 are inserted into the hopper 101, dividing the hopper 101 into multiple spaces. A heating plate 1022 is fixedly connected to the partition plate 1021.

[0025] Specifically, the partition plate 1021 is made of stainless steel or aluminum heat-conducting plate, the heating plate 1022 can be made of cast aluminum electric heating plate, and multiple thermometers 103 can be set to better measure the temperature of the protective slag added to the screw conveyor 20 so that it meets the usage requirements.

[0026] Furthermore, to better separate the heating plates 1022, the partition plate 1021 is arranged in a U-shape and fixed to the inner wall of the hopper 101 by a fixing rod, so that there is a certain distance between the partition plate 1021 and the inner wall of the hopper 101. The distance between two parallel partition plates 1021 is 5cm to 40cm (multiple heating plates 1022 can be set on each side of the partition plate 1021). In this patent, four heating plates 1022 are set and distributed on the four sides of the partition plate 1021. The two partition plates 1021 in the middle can better conduct heat to the protective slag in the middle part.

[0027] During continuous casting, since the protective slag is a solid fine particle, it is mainly heated by heat conduction. In order to achieve better heating, the partition plate 1021 is set on and inserted into the hopper 101 to a depth of 1 / 2 to 2 / 3 of the depth of the hopper 101.

[0028] Furthermore, in order to reduce the impact of moisture-induced agglomeration of the protective slag on the heating effect, a support groove 1013 is provided at the upper opening of the hopper 101, and a filter screen 1014 is placed on the support groove 1013. The filter screen can easily filter out the agglomerates in the protective slag. The mesh size of the filter screen 1014 does not exceed 1cm.

[0029] Furthermore, to facilitate the removal and cleaning of the filter screen 1014, a handle A is provided on the filter screen 1014.

[0030] In order to improve the heating effect inside the hopper 101, a hopper cover 1015 is provided on the upper part of the hopper 101, and a handle B is provided on the hopper cover 1015.

[0031] Furthermore, in order to add protective slag as needed, multiple hoppers 101 for storing protective slag can be set up side by side and one by one above the screw conveyor 20. An electric valve 202 is set between the discharge pipe A1012 and the feed pipe B201 of the screw conveyor 20. The electric valve 202 can be set up to open the discharge pipe A1012 according to the heating temperature as needed.

[0032] Specifically, during use, pour the protective slag onto the filter screen 1014 to filter out any agglomerated protective slag. Add protective slag of the appropriate size into each hopper 101. Turn on the heating plate 1022 to heat the material. When the temperature measured by the thermometer 103 at the feed inlet A1012 reaches 60° (since the heating plate 1022 is located above the hopper, when the temperature measured at the feed inlet A1012 reaches 60°, the temperature of the protective slag above is also above 60°), continue heating for another 2-3 minutes. Then, stop heating. The protective slag in the hopper 101 will then meet the usage standard. Open the corresponding electric valve 202 to put the protective slag into the screw conveyor 20 and feed it into the continuous casting feed port.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An improved slag feeding device for a continuous casting crystallizer, including, A frame (10) is provided with a hopper (101), an inlet A (1011) is provided above the hopper (101), and a discharge pipe A (1012) is provided below the hopper (101). The screw conveyor (20) is fixed on the frame (10) and located below the hopper (101). The discharge pipe A (1012) is connected to the feed pipe B (201) of the screw conveyor (20). Its features are, The hopper (101) is equipped with a partition heating component (102), and a thermometer (103) is inserted at the discharge pipe A (1012). The partition heating assembly (102) includes multiple partition plates (1021), each partition plate (1021) being a heat-conducting plate. The partition plates (1021) are inserted into the hopper (101), and a heating plate (1022) is fixedly connected to each partition plate (1021).

2. The improved slag feeding device for continuous casting crystallizer according to claim 1, characterized in that, The partition plate (1021) is arranged in a U-shape and is inserted into the hopper (101) to a depth of 1 / 2 to 2 / 3 of the depth of the hopper (101).

3. The improved slag feeding device for a continuous casting mold according to claim 1 or 2, characterized in that, The hopper (101) is provided with a support groove (1013) at its upper opening, and a filter screen (1014) is placed on the support groove (1013).

4. The improved slag feeding device for continuous casting crystallizer according to claim 3, characterized in that, The filter screen (1014) is provided with a handle A.

5. The improved slag feeding device for continuous casting crystallizer according to claim 1, characterized in that, The hopper (101) is provided with a hopper cover (1015) on its upper part, and a handle B is provided on the hopper cover (1015).

6. The improved slag feeding device for a continuous casting crystallizer according to claim 1, characterized in that, Multiple hoppers (101) are provided and are arranged one by one above the screw conveyor (20). An electric valve (202) is provided between the discharge pipe A (1012) and the feed pipe B (201) of the screw conveyor (20).

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