Hexagonal six-hole corrosion-resistant refractory brick for pouring
By designing hexagonal and six-hole corrosion-resistant refractory bricks, using a regular hexahedral structure and arc-surface partition, the problem of existing refractory bricks being easily peeled under high-temperature water erosion is solved, and the internal purity and casting efficiency of the ingot billet are improved.
Patent Information
- Application Number
- CN202422358609.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-09-26
AI Technical Summary
Existing porous refractory bricks are prone to peel off under high-temperature water erosion, resulting in the internal purity of the ingot billet being affected and difficult to compact, affecting the casting efficiency.
A hexagonal six-hole corrosion-resistant refractory brick was designed, adopting a regular hexahedral structure, with six shunt holes distributed on six surfaces, and a blind hole embedded in the assembly cast pipe brick was set at the center. The shunt holes were connected to the blind holes, and the root partitions of the adjacent shunt holes used a chord length of 15mm.
The arc surface design improves the corrosion resistance of the roots of the shunt holes, reduces the risk of erosion and shedding, and ensures the purity and casting efficiency of the inside of the ingot.
Smart Images
Figure CN222944498U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of refractory materials, and in particular relates to a six-sided six-hole anti-corrosion refractory brick for casting six ingots. Background Art
[0002] Refractory bricks, also known as center bricks, are a type of refractory bricks used for masonry in the center or near the center of the chassis slot. Center bricks used to produce smaller ingots are generally equipped with 2 to 8 unequal diversion holes. The cast pipe brick hole in the center of this brick usually receives the molten steel from the steel ladle, and the molten steel is transported to the ingot mold through the flow bricks through the diversion holes to solidify and crystallize into the required ingots. Porous refractory bricks (center bricks) can cast multiple ingots at the same time with uniform weight and quality. They have the obvious characteristics of small workstation occupation and high efficiency. The root angle of adjacent diversion holes of porous refractory bricks is extremely small, and the end face of the interlayer is thin blade-shaped. It is difficult to compact the brick body during production and processing. It is very easy to be eroded and peeled off by high-temperature molten steel, mixed into the molten steel to form inclusions, affecting the purity of the ingot, and needs to be redesigned. Utility Model Content
[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a hexagonal six-hole corrosion-resistant refractory brick that can cast six ingots at the same time when casting smaller ingots. The center brick is provided with six diversion holes. The molten steel received from the steel ladle is transported to the crystallization mold through the casting pipe hole at the center position through the flow steel brick, thereby meeting the task of casting six ingots at the same time.
[0004] The purpose of the utility model is achieved as follows: a hexagonal six-hole anti-corrosion refractory brick for casting, comprising a refractory brick body and six molten steel diversion holes opened on the refractory brick body, the refractory brick body is a regular hexahedron, and six molten steel diversion holes are evenly distributed on the six faces of the regular hexahedron. A blind hole for embedding and assembling cast pipe bricks is opened at the center of the upper surface of the refractory brick body, the blind hole is connected with the molten steel diversion hole, the outlet of the molten steel diversion hole is a mother port, and the mother port is tightly connected with the flow steel brick sub-port, and the roots between adjacent diversion holes are adjacent diversion hole root partitions, and the adjacent diversion hole root partitions are anti-corrosion arc surfaces.
[0005] The refractory brick body is a regular hexagon with a side length of 150 mm and a width of 260 mm when viewed from above, and is a hexahedron in the longitudinal direction with a thickness of 115 mm.
[0006] The blind hole opened in the center of the upper surface of the refractory brick body is a cast pipe brick hole with a diameter of 127mm and a depth of 75mm. The cast pipe brick hole is connected to the molten steel diversion hole on the side.
[0007] The molten steel diversion hole is a diversion hole with a diameter of 50 mm and a length of 65 mm.
[0008] The female opening has a bottom diameter of 76 mm, a rim diameter of 81 mm, and a female opening depth of 10 mm.
[0009] The root partitions of adjacent diversion holes are anti-corrosion arc surfaces with a chord length of 15 mm, which facilitates compaction of the root partitions during brick production and processing, and reduces the risk of erosion and shedding during the casting process.
[0010] The utility model has the advantages of being suitable for casting six steel ingots per plate, with uniform weight, consistent quality, small occupation of workstations and high efficiency; eliminating the thin blade-like partition formed by the small angle between the roots of adjacent diversion holes and replacing it with an arc surface with a chord length of 15 mm, thereby improving the corrosion resistance and eliminating the risk of contaminating molten steel. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is the structural front view (longitudinal section view) of the utility model.
[0012] Figure 2 yes Figure 1 Top view of the .
[0013] In the figure: 1. refractory brick body, 2. blind hole (cast pipe brick hole), 3. molten steel diversion hole, 4. mother port, 5. obstruction port. DETAILED DESCRIPTION
[0014] Embodiment 1: As shown in the figure, the utility model includes a refractory brick body 1, six molten steel diversion holes 3 opened on the refractory brick body 1, the refractory brick body 1 is a regular hexahedron, and six molten steel diversion holes 3 are evenly distributed on the six faces of the regular hexahedron. A blind hole 2 for embedding and assembling cast pipe bricks is opened at the center of the upper surface of the refractory brick body 1, and the blind hole 2 is connected with the molten steel diversion hole 3. The outlet of the molten steel diversion hole 3 is a mother port 4, and the mother port 4 is tightly connected with the flow steel brick sub-port. The roots between adjacent diversion holes 3 are adjacent diversion hole root partitions 5, and the adjacent diversion hole root partitions 5 are corrosion-resistant arc surfaces.
[0015] The refractory brick body 1 is a regular hexagon with a side length of 150mm and a width of 260mm in the top view, and a hexahedron in the longitudinal direction with a thickness of 115mm. The blind hole 2 opened in the center of the upper surface of the refractory brick body 1 is a cast pipe brick hole with a diameter of 127mm and a depth of 75mm, and the cast pipe brick hole is connected to the molten steel diversion hole 3 on the side. The molten steel diversion hole 3 is a diversion hole with a diameter of 50mm and a length of 65mm. The mother mouth 4 is an opening with a bottom diameter of 76mm, a mouth diameter of 81mm, and a mother mouth depth of 10mm. The interlayer 5 at the root of the adjacent diversion holes is an anti-corrosion arc surface with a chord length of 15mm.
[0016] It is suitable for pouring six steel ingots per turn, with uniform weight, consistent quality, small workstation occupation and high efficiency. It eliminates the thin blade-like partition formed by the small angle at the root of adjacent diversion holes and replaces it with an arc surface with a chord length of 15mm, which improves the corrosion resistance and eliminates the risk of contaminating molten steel.
Claims
1. A six-sided six-hole anti-corrosion refractory brick for casting, comprising a refractory brick body (1), and six molten steel diversion holes (3) provided on the refractory brick body (1), characterized in that: The refractory brick body (1) is a regular hexahedron, and six molten steel diversion holes (3) are evenly distributed on the six faces of the regular hexahedron. A blind hole (2) for embedding and assembling the cast pipe brick is provided at the center of the upper surface of the refractory brick body (1). The blind hole (2) is connected to the molten steel diversion hole (3). The outlet of the molten steel diversion hole (3) is a mother port (4), and the mother port (4) is closely connected with the sub-port of the flow steel brick. The roots between adjacent diversion holes (3) are adjacent diversion hole root partitions (5), and the adjacent diversion hole root partitions (5) are corrosion-resistant arc surfaces.
2. The hexagonal six-hole anti-corrosion refractory brick for casting according to claim 1, characterized in that: The refractory brick body (1) is a regular hexagon with a side length of 150 mm and a width of 260 mm when viewed from above, and is a hexahedron in the longitudinal direction with a thickness of 115 mm.
3. The hexagonal six-hole anti-corrosion refractory brick for casting according to claim 1, characterized in that: The blind hole (2) opened at the center of the upper surface of the refractory brick body (1) is a cast pipe brick hole with a diameter of 127 mm and a depth of 75 mm. The cast pipe brick hole is connected to the molten steel diversion hole (3) on the side.
4. The hexagonal six-hole anti-corrosion refractory brick for casting according to claim 1, characterized in that: The molten steel diversion hole (3) is a diversion hole with a diameter of 50 mm and a length of 65 mm.
5. The hexagonal six-hole anti-corrosion refractory brick for casting according to claim 1, characterized in that: The female opening (4) is an opening with a bottom diameter of 76 mm, a rim diameter of 81 mm, and a female opening depth of 10 mm.
6. The hexagonal six-hole anti-corrosion refractory brick for casting according to claim 1, characterized in that: The barrier layer (5) at the root of adjacent diversion holes is an anti-corrosion arc surface with a chord length of 15 mm.