Deslagging casting hopper

Abstract

The deslagging casting hopper comprises a casting hopper body and a deslagging mechanism, the casting hopper body comprises a main hopper body and an auxiliary hopper body, the auxiliary hopper body is fixedly connected to the side wall of the main hopper body, a discharging hole is formed in the bottom of the auxiliary hopper body, the main hopper body and the auxiliary hopper body are separated through a partition plate, and a material opening is formed in the bottom end of the partition plate; the main hopper is communicated with the auxiliary hopper through the material opening; the deslagging mechanism is detachably installed in the main hopper and used for blocking and filtering scum in molten steel poured into the main hopper, and the molten steel without the scum flows to the bottom of the main hopper and then flows into the auxiliary hopper through the material opening. According to the scheme, the problem that an existing casting hopper for removing scum can cause raw material waste is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal casting, in particular to a slag-removing casting hopper. Background Art

[0002] A casting hopper (also known as a pouring hopper or pouring funnel) is a device used in industrial production processes such as metal casting. It is mainly used to load and control the flow of high-temperature molten metal materials so as to accurately transport them to the mold or the construction target position.

[0003] In the field of metal casting, the casting hopper is usually designed as a container capable of withstanding high temperatures, and its structure and materials can resist the erosion of molten metal. The casting hopper is usually made of refractory materials, heat-resistant steel or special alloys, and may have a refractory brick lining inside to provide additional heat insulation and protection. The shape and size of the hopper are designed according to specific casting requirements, and common ones are circular, rectangular or special shapes to adapt to different types of molds and casting operations.

[0004] However, when the casting hopper is in use, when the molten steel at high temperature is poured from the melting furnace or holding furnace into the casting hopper for casting, usually there will be waste slag carried in the molten steel. Since the density of the waste slag is smaller than that of the molten steel, it will float on the surface of the molten steel. Therefore, when the casting hopper is tilted to pour the molten steel for casting, the waste slag will flow into the casting mold together with the molten steel. After the molten steel cools and solidifies, the waste slag will also solidify on the cooled and formed product. Since the waste slag is different from the formed product in both quality and material, the cooled and formed product becomes a waste product. Therefore, it is necessary to salvage and filter the waste slag on the surface of the molten steel during casting. When salvaging and filtering, it is necessary for workers to use tools with filtering functions for filtering. However, this method requires one worker for filtering, increasing the labor cost. Second, when workers are filtering, the temperature of the molten steel is too high. Workers need to concentrate their attention during filtering to avoid the leakage and dripping of the high-temperature molten steel onto their bodies. If their attention is distracted, it may lead to safety accidents. Therefore, in order to overcome the above problems, a molten iron filtering box is disclosed in the patent with the application number: 202222310882.4, which includes a T-shaped box body with an open top; the box body includes a transverse part and a longitudinal part that are interconnected. A partition is fixedly provided at the connection of the transverse part and the longitudinal part. A through hole is provided at the bottom of the partition. A placement groove is provided on one side of the longitudinal part away from the transverse part. A filter screen is placed in the placement groove. The placement groove is also provided with a discharge hole that penetrates the longitudinal part. The bottoms of both the transverse part and the longitudinal part slope downward toward the placement groove. This solution provides a partition with a through hole. Since most of the impurities are floating slag, these floating slags are blocked by the partition and retained at the partition, thereby completing the pre-filtering of the molten iron and improving the filtering effect of the filter screen. However, for this kind of casting hopper, although some floating slag is blocked by the partition with a through hole, when the molten iron is first poured into the box body, the molten iron gradually increases from the bottom of the box body. When the amount of molten iron is small at the beginning, there is still floating slag on the surface of the molten iron. At this time, the floating slag will flow into the placement groove through the through hole at the partition, and then the floating slag will adhere to the filter screen in the placement groove, resulting in the blockage of the gaps of the filter screen, thereby affecting the flow rate of the molten iron, and thus reducing the casting efficiency. At the same time, for this kind of casting hopper, in the last stage of casting, in order to prevent the floating slag from flowing into the placement groove with the molten iron, a part of the molten iron will be left to avoid the complete discharge of the molten iron and the floating slag flowing into the casting mold together, which causes waste of the molten iron raw material. Utility Model Content

[0005] The present utility model aims to provide a slag-removing casting hopper to solve the problem that the existing casting hoppers for removing floating slag cause waste of raw materials.

[0006] To solve the above technical problems, the present utility model provides the following technical solutions: A slag-removing casting hopper, comprising a casting hopper and a slag-removing mechanism. The casting hopper includes a main hopper and a sub-hopper. The sub-hopper is fixedly connected to the side wall of the main hopper. The bottom of the sub-hopper is provided with a discharge hole. The main hopper and the sub-hopper are separated by a partition plate. The bottom end of the partition plate is provided with a material port, and the material port communicates the main hopper with the sub-hopper.

[0007] The slag-removing mechanism is detachably installed in the main hopper. The slag-removing mechanism is used to block and filter the floating slag in the molten steel poured into the main hopper, allowing the slag-free molten steel to flow to the bottom of the main hopper, and then flow into the sub-hopper through the material port.

[0008] Further, both the main hopper and the sub-hopper are rectangular box-shaped with open tops, and the length of the sub-hopper is less than that of the main hopper.

[0009] Further, the slag-removing mechanism includes a filter mesh plate for filtering floating slag. Both ends of the filter mesh plate are detachably connected with clamping grooves, and the clamping grooves are used for plugging on the hopper wall of the main hopper to fix the filter mesh plate above the interior of the main hopper.

[0010] Further, the filter mesh plate is inclined in the main hopper. The higher end of the filter mesh plate is located above the material port, and the lower end of the filter mesh plate extends to the hopper wall of the main hopper opposite to the material port.

[0011] Further, heat-insulating layers made of refractory bricks are detachably connected to the inner walls of both the main hopper and the sub-hopper.

[0012] Further, an inverted conical filter hopper is installed in the discharge hole, and the filter hopper is made of a high-temperature resistant filter mesh.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. When the molten steel is poured into the main hopper, the molten steel first passes through the inclined filter mesh plate for filtration to prevent the floating slag from flowing into the main hopper and then into the sub-hopper through the material port at the beginning, which affects the casting quality.

[0015] 2. Through the setting of the filter mesh plate, the floating slag in the molten steel is filtered. All the floating slag adheres to the filter mesh plate. During the casting process, as the molten steel decreases, the floating slag gradually separates from the molten steel. All the molten steel in the casting hopper can be used for casting, without considering the situation that when the amount of molten steel is small, the floating slag will flow out with the molten steel, and part of the molten steel needs to be reserved to prevent the floating slag from being discharged. Therefore, the waste of raw materials is avoided.

[0016] 3. A filter hopper is provided at the discharge hole. Even if there is floating slag that is not blocked by the filter mesh plate and enters the sub-hopper, it will still be filtered by the filter hopper, preventing it from affecting the product quality by passing through the discharge hole into the casting mold.

[0017] 4. By setting the filter screen plate at an angle, and the higher end of the filter screen plate is located above the material port, a larger accommodating space is left near the material port in the main bucket, which can gather more molten steel after filtering out the slag. Then the molten steel can effectively pass through the material port into the auxiliary bucket and then be cast through the discharge hole. The slag attached to the filter screen plate will not affect the diameter of the material port, which effectively ensures the casting efficiency and does not reduce the casting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a slag removal casting hopper of the utility model;

[0019] Figure 2 for Figure 1 The structural diagram of the middle filter screen plate;

[0020] Figure 3 for Figure 1 Schematic diagram of the structure of the middle partition. DETAILED DESCRIPTION

[0021] The following is further described in detail through specific implementation methods:

[0022] The reference numerals in the drawings of the specification include: main bucket 1, card slot 2, filter screen plate 3, auxiliary bucket 4, material port 5, partition plate 6.

[0023] The embodiment is basically as shown in the attached Figure 1 ~Attached Figure 3 As shown:

[0024] A slag removal casting hopper includes a casting hopper and a slag removal mechanism. The casting hopper includes a main hopper 1 and a secondary hopper 4. The secondary hopper 4 is fixedly connected to the active side wall. A discharge hole is provided at the bottom of the secondary hopper 4. An inverted cone-shaped filter hopper is installed in the discharge hole. The filter hopper is made of a high-temperature resistant filter mesh. The main hopper 1 and the secondary hopper 4 are separated by a partition 6. A material port 5 is provided at the bottom of the partition 6. The material port 5 connects the main hopper 1 with the secondary hopper 4. Both the main hopper 1 and the secondary hopper 4 are rectangular boxes with an open top. The length of the secondary hopper 4 is half of the length of the main hopper 1. The inner walls of the main hopper 1 and the secondary hopper 4 are both detachably connected with a heat-insulating layer made of refractory bricks.

[0025] The slag removal mechanism includes a filter screen plate 3 for filtering slag, and both ends of the filter screen plate 3 are detachably connected with a "冂"-shaped slot 2, and the slot 2 is used to be inserted into the bucket wall of the main bucket 1 to fix the filter screen plate 3 above the inside of the main bucket 1. The filter screen plate 3 is tilted in the main bucket 1, and the higher end of the filter screen plate 3 is located above the material port 5, and the lower end of the filter screen plate 3 extends to the bucket wall of the main bucket 1 opposite to the material port 5.

[0026] The specific implementation process is as follows:

[0027] During use, first pour the molten steel into the main hopper 1. When the molten steel is poured, it first contacts the inclined filter screen plate 3. At this time, the filter screen plate 3 filters the dross of the molten steel, allowing the dross to stay on the upper surface of the filter screen plate 3, while the filtered molten steel passes through the gaps of the filter screen plate 3 and flows to the lower part of the filter screen plate 3. At this time, the molten steel flows into the secondary hopper 4 through the material outlet 5 under the action of its own pressure, and then is discharged through the discharge hole of the secondary hopper 4 for casting work. As the main hopper 1 is filled with molten steel, all the dross floats on the surface of the molten steel. The continuously discharged molten steel from the discharge hole causes the liquid level of the molten steel in the main hopper 1 to gradually decrease. When the liquid level of the molten steel decreases, the inclined filter screen plate 3 keeps the dross on its surface. At the same time, the inclined filter screen plate 3 reserves enough accommodation space at the material outlet 5, so that when the gaps of the filter screen plate 3 are blocked by dross, there is more filtered molten steel at the material outlet 5 for passing through the material outlet 5 to ensure the casting efficiency. After the casting is completed, lift the clamping grooves 2 at both ends of the filter screen plate 3 upward from the hopper wall of the main hopper 1, and the filter screen plate 3 can be removed from the main hopper 1.

Claims

1. A slag removal and casting hopper, characterized in that: It includes a casting hopper and a slag removal mechanism. The casting hopper includes a main hopper and a sub-hopper. The sub-hopper is fixedly connected to the side wall of the main hopper. There is a discharge hole at the bottom of the sub-hopper. The main hopper and the sub-hopper are separated by a partition plate. There is a material opening at the bottom end of the partition plate, and the material opening connects the main hopper and the sub-hopper. The slag removal mechanism is detachably installed in the main hopper. The slag removal mechanism is used to block and filter the floating slag in the molten steel poured into the main hopper, allowing the molten steel without floating slag to flow to the bottom of the main hopper, and then flow into the sub-hopper through the material opening.

2. The slag removal and casting hopper according to claim 1, characterized in that: Both the main hopper and the sub-hopper are rectangular box-shaped with open tops, and the length of the sub-hopper is less than that of the main hopper.

3. The slag removal and casting hopper according to claim 2, characterized in that: The slag removal mechanism includes a filter mesh plate for filtering floating slag. At both ends of the filter mesh plate, there are detachably connected card slots, and the card slots are used to be inserted into the hopper wall of the main hopper to fix the filter mesh plate above the inside of the main hopper.

4. The slag removal and casting hopper according to claim 3, characterized in that: The filter mesh plate is inclined in the main hopper. The higher end of the filter mesh plate is located above the material opening, and the lower end of the filter mesh plate extends to the hopper wall of the main hopper opposite to the material opening.

5. The slag removal and casting hopper according to claim 4, characterized in that: On the inner walls of both the main hopper and the sub-hopper, there are detachably connected heat insulation layers made of refractory bricks.

6. The slag removal and casting hopper according to claim 5, characterized in that: A conical filter hopper is installed in the discharge hole, and the filter hopper is made of a high-temperature resistant filter mesh.

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