A basket type graphite filter

Abstract

The invention discloses a basket-type graphite filter, which belongs to the field of filter screens. The invention adopts a circular casting port, a cylindrical water storage ring is arranged below the casting port, a disc-shaped filter screen is arranged at the bottom of the water storage ring, sliding holes are arranged on both sides of the casting port and the filter screen, a U-shaped suspension rod is arranged inside the sliding hole, a disc-shaped anti-blocking plate is arranged at the bottom of the suspension rod, a cylindrical ejector pin and a circular overflow hole are arranged above the anti-blocking plate, and when the basket-type graphite filter screen is installed in the center of a mold box, a casting pot pours molten iron into the water storage ring through the casting port, the molten iron flows to the top of the anti-blocking plate through the mesh of the filter screen, and the molten iron flows into the sand mold through the overflow hole of the anti-blocking plate.

Description

Technical Field

[0001] The invention discloses a basket-type graphite filter screen, belonging to the field of filter screens, and particularly relates to a high-temperature filter screen made of graphite as a raw material. Background Art

[0002] Filter is a mechanism used to filter residue. Most of the existing high-temperature filter manufacturers use ceramic filters. Since the maximum temperature resistance of ceramic filters is 1500℃, the ceramic filters will deform or even melt above this temperature, which cannot meet the ultra-high temperature casting requirements of high-purity steel or alloy steel, and the blocked mesh cannot be opened in time during the casting process. Therefore, a graphite filter that can withstand ultra-high temperatures is needed to replace the existing ceramic filter. Summary of the invention

[0003] The basket-type graphite filter of the present invention overcomes the above-mentioned defects, adopts a circular casting port, a cylindrical water storage ring is arranged below the casting port, a disc-shaped filter screen is arranged at the bottom of the water storage ring, sliding holes are arranged on both sides of the casting port and the filter screen, a U-shaped suspension rod is arranged inside the sliding hole, a disc-shaped anti-blocking plate is arranged at the bottom of the suspension rod, a cylindrical ejector pin and a circular overflow hole are arranged on the top of the anti-blocking plate, when the basket-type graphite filter screen is installed in the center of the mold box, the casting pot pours molten iron into the water storage ring through the casting port, the molten iron flows to the top of the anti-blocking plate through the mesh of the filter screen, and the molten iron flows into the sand mold through the overflow hole of the anti-blocking plate.

[0004] A basket-type graphite filter screen, characterized in that it includes a casting port, a water trap, a filter screen, a mesh, an anti-blocking plate, an ejector pin, an overflow hole, and a suspension rod;

[0005] The casting port is a circular ring made of graphite, and a circular sliding hole is vertically arranged in the center of both sides of the casting port. A cylindrical water retaining ring made of graphite is vertically arranged below the inner ring of the casting port, and a crescent-shaped support ear is arranged on both sides of the bottom of the water retaining ring. A circular sliding hole is vertically arranged in the center of each of the two support ears, and the centers of the two sliding holes are perpendicular to the centers of the sliding holes in the centers of both sides of the upper casting port.

[0006] The filter is a disc-shaped graphite filter, which is horizontally arranged inside the bottom of the water storage ring, and circular meshes are evenly arranged vertically on the top of the filter.

[0007] The suspension rod is U-shaped and made of graphite, with both ends pointing downward through the sliding holes on both sides of the casting port and the sliding holes at the bottom of the water trap ring, extending to the bottom of the water trap ring. The diameter of both ends of the suspension rod is less than 1 / 5 of the inner diameter of the sliding hole, and anti-blocking plates are horizontally arranged in the middle of the bottom of both ends of the suspension rod.

[0008] The anti-blocking plate is a disc made of graphite, and its diameter is equal to the diameter of the filter screen. A crescent-shaped lifting ear is arranged on each side of the anti-blocking plate, and the centers of the two lifting ears are respectively connected to the bottom of the two ends of the suspension rod. Cylindrical ejectors are evenly arranged vertically upward on the top of the anti-blocking plate, and each ejector corresponds vertically to the mesh on the filter screen directly above, and the diameter of the ejector is less than 1 / 5 of the inner diameter of the mesh. Circular overflow holes are evenly arranged in the gaps between the ejectors on the top of the anti-blocking plate, and the inner diameter of the overflow holes is greater than 1 / 5 of the inner diameter of the mesh.

[0009] Beneficial effect: Most of the existing companies producing high-temperature filters use ceramic filters. Since the ceramic filter can withstand a maximum temperature of 1500°C, it will deform or even melt above this temperature, and cannot meet the ultra-high temperature casting requirements of high-purity steel or alloy steel, and it is also impossible to poke open the blocked mesh in time during the casting process. A basket-type graphite filter overcomes the above-mentioned defects. It adopts a circular casting port, a cylindrical water storage ring is arranged below the casting port, a disc-shaped filter is arranged at the bottom of the water storage ring, sliding holes are arranged on both sides of the casting port and the filter, a U-shaped suspension rod is arranged inside the sliding hole, a disc-shaped anti-blocking plate is arranged at the bottom of the suspension rod, and a cylindrical ejector pin and a circular overflow hole are arranged on the anti-blocking plate. When the basket-type graphite filter is installed in the center of the mold box, the casting pot pours molten iron into the water storage ring through the casting port, the molten iron flows to the top of the anti-blocking plate through the mesh of the filter, and the molten iron flows into the sand mold through the overflow hole of the anti-blocking plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to further illustrate the technical solution of the present invention, the drawings required for use are briefly described below. The drawings in the following description are only some schematic diagrams of the present invention. For those skilled in the art, more drawings can be obtained by combining these drawings without creativity.

[0011] Figure 1 It is a structural schematic diagram of a basket-type graphite filter;

[0012] Figure 2 It is a schematic diagram of the structure of the casting mouth, water trap, filter screen and mesh;

[0013] Figure 3 It is a schematic diagram of the structure of the anti-blocking plate, ejector pin, overflow hole and suspension rod;

[0014] The markings in the above drawings are casting port 1, water trap 2, filter screen 3, mesh 4, anti-blocking plate 5, ejector pin 6, overflow hole 7, and suspension rod 8. DETAILED DESCRIPTION

[0015] Now, in conjunction with the accompanying drawings and the reference numerals, the shape and structure of the present invention are described in detail:

[0016] A basket-type graphite filter, characterized in that it comprises a casting port 1, a water trap 2, a filter 3, a mesh 4, an anti-blocking plate 5, an ejector pin 6, an overflow hole 7, and a suspension rod 8;

[0017] The pouring port 1 is a circular ring made of graphite, and a circular sliding hole is vertically arranged in the center of both sides of the pouring port 1. A cylindrical water retaining ring 2 made of graphite is vertically arranged below the inner ring of the pouring port 1, and a crescent-shaped support ear is arranged on both sides of the bottom of the water retaining ring 2. A circular sliding hole is vertically arranged in the center of each of the two support ears, and the centers of the two sliding holes are perpendicular to the centers of the sliding holes in the center of both sides of the upper pouring port 1.

[0018] The filter screen 3 is a disc-shaped graphite filter, horizontally arranged inside the bottom of the water trap 2, and circular meshes 4 are evenly arranged vertically on the filter screen 3;

[0019] The suspension rod 8 is U-shaped and made of graphite, with both ends pointing downward through the sliding holes on both sides of the casting port 1 and the sliding holes at the bottom of the water trap 2, extending to the bottom of the water trap 2. The diameter of both ends of the suspension rod 8 is less than 1 / 5 of the inner diameter of the sliding hole, and anti-blocking plates 5 are horizontally arranged in the middle of the bottom of both ends of the suspension rod 8.

[0020] The anti-blocking plate 5 is a disc made of graphite, and its diameter is equal to that of the filter screen 3. A crescent-shaped lifting ear is arranged on each side of the anti-blocking plate 5, and the centers of the two lifting ears are respectively connected to the bottoms of the two ends of the suspension rod 8. Cylindrical ejector pins 6 are evenly arranged vertically upward on the anti-blocking plate 5, and each ejector pin 6 corresponds vertically to the mesh 4 on the filter screen 3 directly above, and the diameter of the ejector pin 6 is less than 1 / 5 of the inner diameter of the mesh 4. Circular overflow holes 7 are evenly arranged in the gaps between the ejector pins 6 on the anti-blocking plate 5, and the inner diameter of the overflow holes 7 is greater than 1 / 5 of the inner diameter of the mesh 4.

[0021] When using the above-mentioned basket-type graphite filter, workers select the corresponding basket-type graphite filter according to the size and type of the workpiece to be cast, then lay casting sand and place the lost mold in the sand box, and then install the basket-type graphite filter in the center of the sand box as required, and clear the casting port. After the molten iron is melted, the molten iron is slowly poured into the water storage ring through the casting pot through the casting port, and the molten iron penetrates the mesh and flows to the top of the anti-blocking plate, and then the molten iron flows into the sand mold through the overflow hole of the anti-blocking plate. During the casting process, if the molten iron flow rate in the water storage ring is found to be If it is too slow, it proves that part of the mesh is blocked by iron oxide slag, and the casting can be suspended for 3-8S. At this time, the worker uses an iron hook to hook the center of the suspension rod and slowly lift it up. When the suspension rod moves upward, the bottom pulls the anti-blocking plate to move upward synchronously, so that all the ejectors are inserted into the mesh, forcing the iron oxide slag in the mesh to withdraw upward. Then put down the suspension rod, use a special clamp to quickly clamp the iron oxide slag on the filter, and then continue casting. After the casting is completed, use the hook to carefully hook out the basket-type graphite filter, and clean up the unsolidified molten iron in an emergency before it can be used again.

[0022] The parts not described in detail above are prior art.

[0023] The above description is only a general disclosure of the present invention and does not limit the present invention in any form. Any equivalent changes, adjustments, modifications and evolutions made to the above-mentioned technology by technicians familiar with the industry without departing from the scope of the technical solution of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A basket-type graphite filter, Its characteristics are: Including casting mouth, water trap, filter screen, mesh, anti-blocking plate, ejector pin, overflow hole, and hanging rod; The casting port is a circular ring made of graphite, and a circular sliding hole is vertically arranged in the center of both sides of the casting port. A cylindrical water retaining ring made of graphite is vertically arranged below the inner ring of the casting port, and a crescent-shaped support ear is arranged on both sides of the bottom of the water retaining ring. A circular sliding hole is vertically arranged in the center of each of the two support ears, and the centers of the two sliding holes are perpendicular to the centers of the sliding holes in the centers of both sides of the upper casting port. The filter is a disc-shaped graphite filter, which is horizontally arranged inside the bottom of the water storage ring, and circular meshes are evenly arranged vertically on the top of the filter. The suspension rod is U-shaped and made of graphite, with both ends pointing downward through the sliding holes on both sides of the casting port and the sliding holes at the bottom of the water trap ring, extending to the bottom of the water trap ring. The diameter of both ends of the suspension rod is less than 1 / 5 of the inner diameter of the sliding hole, and anti-blocking plates are horizontally arranged in the middle of the bottom of both ends of the suspension rod. The anti-blocking plate is a disc made of graphite, and its diameter is equal to the diameter of the filter screen. A crescent-shaped lifting ear is arranged on each side of the anti-blocking plate, and the centers of the two lifting ears are respectively connected to the bottom of the two ends of the suspension rod. Cylindrical ejectors are evenly arranged vertically upward on the top of the anti-blocking plate, and each ejector corresponds vertically to the mesh on the filter screen directly above, and the diameter of the ejector is less than 1 / 5 of the inner diameter of the mesh. Circular overflow holes are evenly arranged in the gaps between the ejectors on the top of the anti-blocking plate, and the inner diameter of the overflow holes is greater than 1 / 5 of the inner diameter of the mesh.

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