A high-temperature resistant flushing silicon water tank

Abstract

The utility model provides a kind of high-temperature scouring silicon water package, including silicon water package body, the bottom center of silicon water package body is equipped with air brick, air brick is equipped with several air holes, the outside of air brick is equipped with several refractory brick layers, and adjacent refractory brick layer is staggered joint setting, the refractory brick layer includes several refractory bricks and is arranged in radial, the air brick and several refractory brick layers are connected with silicon water package body by castable, air pipe is inserted in the air brick, the outer layer of silicon water package body is equipped with refractory layer. The utility model is combined with structure optimization by local material, improve the washability of the bottom of silicon water package, prolong the service life of silicon water package, reduce the maintenance cost of silicon water package.

Description

Technical Field

[0001] This utility model belongs to the field of metallurgical equipment technology and relates to a silicon water tank resistant to high temperature erosion. Background Technology

[0002] In the production process of industrial silicon submerged arc furnaces, the silicon ladle is subjected to long-term erosion from high-temperature molten silicon and oxidation reactions. Traditional repair methods use a single high-alumina castable for integral casting, which has the following drawbacks: ① Poor durability: Currently, the refractoriness of silicon ladle castables is relatively low, typically ≥1400℃. Under the erosion of high-temperature molten silicon, they are prone to cracking and peeling, resulting in a short service life of the bottom permeable bricks, approximately 80-100 times; ② High maintenance costs: Frequent repairs require a large amount of castable, resulting in high costs per repair; ③ Safety hazards: Currently, the erosion resistance of silicon ladle castables is poor, easily leading to ladle leakage accidents. To address these technical shortcomings, conventional solutions such as repairing the refractory bricks separately are commonly used, but these methods do not optimize the structure for the special working conditions of the high-temperature erosion area at the bottom of the silicon ladle, failing to balance economy and durability. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in the prior art by providing a high-temperature erosion resistant silicon water pack, which solves the problems of poor durability in the high-temperature erosion area at the bottom of the existing silicon water pack, resulting in high maintenance costs and safety hazards.

[0004] Therefore, the present invention adopts the following technical solution:

[0005] A high-temperature erosion resistant silica water bag includes a silica water bag body, a breathable brick is provided at the bottom center of the silica water bag body, the breathable brick is provided with a number of breathable holes, a number of refractory brick layers are provided on the outside of the breathable brick, and the adjacent refractory brick layers are staggered, the refractory brick layers include a number of refractory bricks arranged radially.

[0006] The permeable bricks and several refractory brick layers are connected to the silica water tank body by castable refractory. An air inlet pipe is inserted into the permeable bricks, and a refractory layer is provided on the outer layer of the silica water tank body.

[0007] Specifically, the breathable bricks are truncated cones; the silica water packs are hollow cylinders.

[0008] Specifically, the refractory bricks are cubic in shape, with a refractoriness of ≥1770℃ and a thickness of 100-150mm; the refractory layer has a refractoriness of ≥1400℃ and a thickness of 50-80mm.

[0009] Symmetrical lugs are provided on the side wall of the silica water tank body for hoisting and moving the silica water tank.

[0010] The beneficial effects of this utility model are as follows:

[0011] This invention, by setting up a permeable brick and a refractory brick layer that work together, enables the mixed gas in the air inlet pipe to agitate the oxidation reaction during the silica water oxidation refining process, thereby reducing the high-temperature erosion and scouring of the permeable brick and the surrounding area. It fully utilizes the high thermal shock resistance and strength properties formed between the refractory brick layer, the permeable brick, and the castable, thereby improving the scouring resistance of the bottom of the silica water tank, extending the service life of the silica water tank, and reducing the maintenance cost of the silica water tank. Attached Figure Description

[0012] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0013] Figure 2 This is a three-dimensional structural diagram of the refractory brick layer in this utility model;

[0014] Figure 3 This is a schematic diagram showing the installation position of the air intake pipe in this utility model.

[0015] In the diagram, 1-permeable brick, 2-refractory brick layer, 3-castable material, 4-refractory layer, 5-ear, 6-air inlet pipe, 7-refining gas, 8-ventilation hole. Detailed Implementation

[0016] The technical solution of this utility model will be described below with reference to the accompanying drawings and implementation methods.

[0017] like Figure 1 As shown, a high-temperature erosion resistant silica water bag includes a hollow cylindrical silica water bag body. The silica water bag body body is symmetrically provided with ear 5 on its side wall for hoisting and moving the silica water bag. A breathable brick 1 is provided at the bottom center of the silica water bag body body. The breathable brick 1 is truncated cone-shaped and has a number of breathable holes 8.

[0018] like Figure 2 As shown, the permeable brick 1 is provided with a double-layer refractory brick layer 2 on the outside, and the adjacent refractory brick layers 2 are staggered. The refractory brick layer 2 includes a number of refractory bricks arranged radially. Specifically, the refractory bricks are cuboid, with a refractoriness of 1770℃ and a thickness of 130mm.

[0019] Both the permeable brick 1 and the double-layer refractory brick layer 2 are connected to the silica water tank body through the castable refractory 3. In this embodiment, the double-layer refractory brick layer 2 and the castable refractory 3 are laid in a staggered and tight manner to ensure the stability of the overall structure. The castable refractory 3 completely covers the bottom and sidewalls of the permeable brick 1, thereby forming an anti-erosion barrier. Specifically, the mass ratio of the castable refractory 3 is: 8% refractory cement, 60% high-alumina bauxite aggregate, 30% high-alumina fine powder, and 2% steel fiber. Among them, the refractory cement is CA-50 special cement, the high-alumina bauxite aggregate is high-alumina bauxite with a particle size of 2-5mm, and the high-alumina fine powder has a particle size of ≤0.088mm. All three are common materials for casting.

[0020] like Figure 3 As shown, an air inlet pipe 6 is inserted inside the permeable brick 1. Refined gas is introduced into the air inlet pipe 6. The refined gas includes oxygen and air in a mass ratio of 4:1 and the gas pressure is 0.4 MPa.

[0021] The outer layer of the silica water package is provided with a refractory layer 4, which has a refractoriness of 1400℃ and a thickness of 70mm; specifically, the refractory layer 4 is made of high alumina brick with an Al2O3 content ≥75%.

[0022] In the process of using this utility model: First, the inner wall of the silica water bag body needs to be cleaned; second, the double-layer alumina refractory brick layer 2 is installed along the perimeter of the permeable brick 1 using a staggered joint masonry method, and the total height of the double-layer refractory brick layer 2 after installation is the same as the height of the permeable brick 1; next, the castable 3 is mixed evenly and poured to the outside of the refractory brick layer 2, and then vibrated to compact it; finally, after natural curing for 24 hours, the silica water bag can be put into use.

Claims

1. A high-temperature erosion resistant silicone water pack, comprising a silicone water pack body, characterized in that, The bottom center of the silica water package body is provided with a breathable brick (1), the breathable brick (1) is provided with a number of breathable holes (8), the outside of the breathable brick (1) is provided with a number of refractory brick layers (2), and the adjacent refractory brick layers (2) are staggered. The refractory brick layer (2) includes a number of refractory bricks arranged radially. The permeable brick (1) and several refractory brick layers (2) are connected to the silica water package body through castable (3). An air inlet pipe (6) is inserted inside the permeable brick (1), and a refractory layer (4) is provided on the outer layer of the silica water package body.

2. The high-temperature erosion resistant silica water pack according to claim 1, characterized in that, The permeable brick (1) is truncated cone-shaped.

3. The high-temperature erosion resistant silica water pack according to claim 1, characterized in that, The silicon water package body is in the shape of a hollow cylinder.

4. The high-temperature erosion resistant silica water pack according to claim 1, characterized in that, The refractory brick is cuboid in shape, with a refractoriness of ≥1770℃ and a thickness of 100-150mm.

5. The high-temperature erosion resistant silica water pack according to claim 1, characterized in that, The refractory layer (4) has a fire resistance of ≥1400℃ and a thickness of 50-80mm.

6. The high-temperature erosion resistant silica water pack according to claim 1, characterized in that, The silicon water package body is provided with symmetrical lugs (5) on its side wall, which are used for hoisting and moving the silicon water package.

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