A molten material chute

Abstract

The utility model discloses a kind of molten material chute, belong to molten material processing technical field.The chute includes lower tank body and upper tank body, and the two pieces of tank body are detachably connected, and hollow barrel structure is formed after being connected;Lower tank body includes lower tank body refractory layer and lower tank body shell, and the both are fixedly connected;Upper tank body includes upper tank body refractory layer and upper tank body shell, and the both are fixedly connected;Lower tank body refractory layer and upper tank body refractory layer are located in the inner layer of barrel structure, and lower tank body shell and upper tank body shell are located in the outer layer of barrel structure.When lower tank body reaches critical use, rotate 180° to rotate upper tank body to working position, and replace a new tank body after original lower tank body is removed, without stopping furnace, greatly improve operation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of molten material processing technology, specifically relating to a molten material chute. Background Technology

[0002] In industries such as metallurgy, glass, electronic waste, and hazardous waste disposal, molten material sluices are key equipment for conveying high-temperature molten materials such as molten metal, molten glass, and molten slag. In actual operation, the high-temperature resistant refractory material in the sluice becomes thinner under the scouring of the flowing molten liquid, eventually causing the lower part of the sluice to be unable to resist high-temperature erosion and chemical corrosion and be destroyed.

[0003] Water cooling, improved refractory materials, or ramming fillers can only delay high-temperature erosion. When the refractory lining of the trough is eroded to a critical thickness, it is still necessary to shut down the furnace for cooling, replace the chute, or have workers remove the refractory bricks and recast the refractory material. This process has the following disadvantages: 1. Long downtime: A series of operations such as cooling, dismantling, casting, and baking take a long time and seriously affect continuous production; 2. High labor intensity and harsh environment: Workers engage in heavy physical labor in high temperature and high dust environments, which poses a high risk to their health. Utility Model Content

[0004] 1. The problem to be solved To address the problems of short service life and difficulty in replacement of existing molten material chutes, this invention provides a molten material chute with long service life and easy replacement.

[0005] 2. Technical Solution To solve the above problems, the technical solution adopted in this application is as follows: This utility model provides a molten material chute, including a lower chute and an upper chute, which are detachably connected to form a hollow barrel-shaped structure after connection. The lower tank body includes a lower tank body fire-resistant layer and a lower tank body outer shell. The lower tank body outer shell is recessed inward, and the lower tank body fire-resistant layer is disposed in the recess of the lower tank body outer shell. The lower tank body fire-resistant layer and the lower tank body outer shell are fixedly connected. The aforementioned upper tank body includes an upper tank body fire-resistant layer and an upper tank body outer shell. The upper tank body outer shell protrudes outward, and the upper tank body fire-resistant layer is disposed at the protrusion of the upper tank body outer shell. The upper tank body fire-resistant layer and the upper tank body outer shell are fixedly connected. The aforementioned lower tank refractory layer and the aforementioned upper tank refractory layer are located in the inner layer of the aforementioned barrel-shaped structure, while the aforementioned lower tank outer shell and the aforementioned upper tank outer shell are located in the outer layer of the aforementioned barrel-shaped structure.

[0006] Furthermore, the upper tank and the lower tank have the same shape and size.

[0007] Furthermore, a heat insulation layer is provided between the refractory layer of the lower tank and the outer shell of the lower tank, and a heat insulation layer is also provided between the refractory layer of the upper tank and the outer shell of the upper tank.

[0008] Furthermore, the cross-sections of the lower tank shell and the upper tank shell are U-shaped, V-shaped, rectangular, trapezoidal, or semi-circular.

[0009] Furthermore, the lower tank shell and the upper tank shell extend radially outward at both ends to form an outer edge.

[0010] Furthermore, corresponding bolt holes are provided on the outer edges of both sides of the lower tank shell and the upper tank shell.

[0011] Furthermore, the number of bolt holes is more than three for both the lower and upper outer casings.

[0012] Furthermore, both the lower tank shell and the upper tank shell are equipped with lifting rings.

[0013] Furthermore, the number of the aforementioned lifting rings is two or more for both the lower tank shell and the upper tank shell.

[0014] Furthermore, the thickness of the outer shell of the lower tank and the outer shell of the upper tank is 2-10mm, and the thickness of the refractory layer of the lower tank and the refractory layer of the upper tank is 5-20cm.

[0015] Furthermore, thermocouples are installed on the refractory layers of the lower tank and the upper tank.

[0016] Furthermore, the refractory layer of the lower tank and the refractory layer of the upper tank are made of refractory bricks.

[0017] Furthermore, in actual use, the liquid level of the molten liquid does not exceed the plane containing the outer edge of the lower tank.

[0018] Optionally, a pipe support rotation device may be installed on the entire chute.

[0019] Optionally, the pipe support rotation device is a gear or a slewing bearing, which is driven by a motor to achieve a 180° rotation.

[0020] Optionally, after the lower tank reaches the critical point of use, the machine should be stopped first, and the molten liquid in the chute should be completely drained. The chute should be cooled before the replacement operation is carried out.

[0021] 3. Beneficial effects Compared with the prior art, the advantages of this utility model are as follows: (1) The molten material chute provided by this utility model includes two troughs, an upper trough and an lower trough. When the lower trough reaches the critical point of use, the entire trough is rotated 180° to rotate the upper trough to the working position, thus doubling the service life.

[0022] (2) The molten material chute provided by this utility model has two detachable chute bodies. When the lower chute body reaches the critical point of use, the whole body is rotated 180° to rotate the upper chute body to the working position, the original lower chute body is removed, and a new chute body is replaced. There is no need to stop the furnace, which is safe and environmentally friendly.

[0023] (3) Even if the furnace needs to be shut down, this solution can complete the replacement within 1 day. Compared with the traditional replacement method, which takes several days or even weeks, this solution greatly improves the equipment operating rate and production efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a molten material chute.

[0025] In the diagram: 1. Refractory layer of the lower tank; 2. Outer shell of the lower tank; 3. Refractory layer of the upper tank; 4. Outer shell of the upper tank; 5. Outer edge; 6. Bolt hole; 7. Lifting ring. Detailed Implementation

[0026] The present application will be further described below with reference to specific embodiments.

[0027] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0028] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0029] Example 1 like Figure 1As shown in the figure, this utility model discloses a molten material chute, including a symmetrically arranged lower chute and an upper chute. Both chute bodies are semi-circular and detachably connected to form a hollow cylindrical structure. The lower chute includes a lower chute refractory layer 1 and a lower chute shell 2. The lower chute shell 2 is recessed inward, and the lower chute refractory layer 1 is disposed in the recess of the lower chute shell 2. The lower chute refractory layer 1 and the lower chute shell 2 are fixedly connected. The upper chute includes an upper chute refractory layer 3 and an upper chute shell 4. The upper chute shell 4 protrudes outward, and the upper chute refractory layer 3 is disposed in the protrusion of the upper chute shell 4. The upper chute refractory layer 3 and the upper chute shell 4 are fixedly connected. The lower chute refractory layer 1 and the upper chute refractory layer 3 are located in the inner layer of the cylindrical structure, and the lower chute shell 2 and the upper chute shell 4 are located in the outer layer of the cylindrical structure.

[0030] The lower tank shell 2 and the upper tank shell 4 are made of stainless steel with a thickness of 5mm; the lower tank refractory layer 1 and the upper tank refractory layer 3 are made of cast refractory bricks with a thickness of 12cm. The chute is 12m long, 60cm in diameter, and the hollow part has a diameter of 35cm.

[0031] The lower tank shell 2 and the upper tank shell 4 extend outward radially at both ends to form an outer edge 5, which has a width of 5cm.

[0032] Both sides of the lower tank shell 2 and the upper tank shell 4 have four corresponding bolt holes 6 along their outer edges 5. Before use, high-temperature resistant bolts are installed in the bolt holes 6 to securely connect the upper and lower tank pieces.

[0033] Both the lower tank shell 2 and the upper tank shell 4 are equipped with two lifting rings 7.

[0034] In actual use, the molten liquid level does not exceed the plane containing the outer edge 5 of the lower tank body, so only the lower tank body will be worn. When the lower tank body reaches the critical use point, the entire chute is rotated 180° to rotate the upper tank body to the working position. The high-temperature bolts in the bolt holes 6 are removed, and the connection between the upper and lower tank bodies is released. A rope is threaded through the lifting ring 7 on the original lower tank body shell 2, and the other end of the rope is connected to a crane to remove the original lower tank body. Then, a new tank body is placed in the original position, and high-temperature bolts are installed in the bolt holes 6 to fix the upper and lower tank bodies together. This process does not require stopping the furnace and does not affect the normal operation process at all.

[0035] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A smelt spout characterized by, The structure includes a lower tank and an upper tank, which are detachably connected to form a hollow barrel-shaped structure. The lower tank includes a lower tank refractory layer (1) and a lower tank shell (2), with the lower tank shell (2) recessed inward and the lower tank refractory layer (1) located in the recess of the lower tank shell (2). The upper tank includes an upper tank refractory layer (3) and an upper tank shell (4), with the upper tank shell (4) protruding outward and the upper tank refractory layer (3) located in the protrusion of the upper tank shell (4). The lower tank refractory layer (1) and the upper tank refractory layer (3) are located in the inner layer of the barrel-shaped structure, while the lower tank shell (2) and the upper tank shell (4) are located in the outer layer of the barrel-shaped structure.

2. The smelt spout of claim 1 wherein, The lower tank refractory layer (1) and the lower tank shell (2) are fixedly connected, and the upper tank refractory layer (3) and the upper tank shell (4) are fixedly connected.

3. The molten material chute according to claim 2, characterized in that, The upper and lower tanks are identical in shape and size.

4. The smelt spout of claim 1 wherein, The cross-sections of the lower tank shell (2) and the upper tank shell (4) are U-shaped, V-shaped, rectangular, trapezoidal or semi-circular.

5. The smelt spout defined in any one of claims 1 to 4 wherein, The lower tank shell (2) and the upper tank shell (4) extend outward radially at both ends to form an outer edge (5).

6. The molten material chute according to claim 5, characterized in that, The outer edges (5) on both sides of the lower tank shell (2) and the upper tank shell (4) are provided with corresponding bolt holes (6), and the number of bolt holes (6) is more than 3 on each side of the lower tank shell (2) and the upper tank shell (4).

7. The molten material chute according to any one of claims 1-4, characterized in that, Both the lower tank shell (2) and the upper tank shell (4) are provided with lifting rings (7), and the number of lifting rings (7) is more than two on each of the lower tank shell (2) and the upper tank shell (4).

8. The molten material chute according to claim 1, characterized in that, The thickness of the lower tank shell (2) and the upper tank shell (4) is 2-10mm, and the thickness of the lower tank refractory layer (1) and the upper tank refractory layer (3) is 5-20cm.

9. The molten material chute according to any one of claims 1-3, characterized in that, Thermocouples are installed on the refractory layer (1) of the lower tank and the refractory layer (3) of the upper tank.

10. The smelt spout of any one of claims 1-3, wherein, The lower tank refractory layer (1) and the upper tank refractory layer (3) are refractory bricks.

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