A sealing structure of a cavity of a premixing device for castable

Abstract

This utility model discloses a cavity sealing structure for a castable premixing equipment, comprising: a horizontal cylindrical body, a sealing plate, a plow shaft, a first sealing ring, and a second sealing ring. The plow shaft is concentrically arranged in the horizontal cylindrical body. A flange is provided at the open end of the horizontal cylindrical body. A first annular groove is recessed on the front side of the flange. The first sealing ring is disposed in the first annular groove. The sealing plate is disposed on the front side of the flange and compresses and seals the first sealing ring. A guide sleeve is provided on the edge of the sealing plate and fitted onto the outer wall of the flange. A retaining ring is provided on the flange in front of the guide sleeve. A second annular groove is recessed at the front end of the inner hole of the guide sleeve. The second sealing ring is disposed in the second annular groove. A pressure ring is provided in front of the second sealing ring in the second annular groove. Through the cooperation of the first sealing ring and the second sealing ring, two seals are achieved without interference, ensuring sealing reliability and providing good rotational support for the plow shaft.

Description

Technical Field

[0001] This utility model relates to the field of premixing equipment for castables, and in particular to a cavity sealing structure for premixing equipment for castables. Background Technology

[0002] Plow-type mixers are commonly used premixing equipment for castables. Through the combined action of plow blades and flying knives, the castables are stirred to carry out convection, diffusion and shearing motions, achieving rapid and uniform mixing. Moreover, the plow blades and flying knives can break up lumps of castables, making them widely applicable.

[0003] During the premixing of castable refractory, it is necessary to ensure the sealing of the mixing equipment to prevent raw material leakage. In horizontal plow-type mixers, a sealing plate can be installed at the open end for easy cleaning and maintenance of the cavity. The cavity can be cleaned after the sealing plate is removed.

[0004] A removable sealing plate is not conducive to stable support of the plowshare spindle, and its disassembly and assembly are difficult. After the sealing plate is installed, a sealing ring can be used to seal the end face, but this is usually a single sealing structure with poor reliability, and needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a cavity sealing structure for a premixing equipment for castables, thereby improving the sealing effect and ensuring support for the plow blade spindle.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A cavity sealing structure for a castable premixing equipment includes: a horizontal cylindrical body, a sealing plate, a plow shaft, a first sealing ring, and a second sealing ring. The plow shaft is concentrically arranged in the horizontal cylindrical body. A flange is provided at the open end of the horizontal cylindrical body. A first annular groove is recessed on the front side of the flange. The first sealing ring is disposed in the first annular groove. The sealing plate is disposed on the front side of the flange and performs compression sealing on the first sealing ring. A guide sleeve is provided on the edge of the sealing plate and fitted onto the outer wall of the flange. A retaining ring is provided on the flange in front of the guide sleeve. A second annular groove is recessed at the front end of the inner hole of the guide sleeve. The second sealing ring is disposed in the second annular groove. A pressure ring is provided in front of the second sealing ring in the second annular groove.

[0008] The flange is welded and fixed to the open end of the horizontal cylinder.

[0009] The sealing plate is provided with a first screw that connects to the flange, and the flange is provided with a first threaded hole that corresponds to the first screw.

[0010] The retaining ring is provided with a second screw pointing backward toward the pressure ring.

[0011] The retaining ring has a ring array of second threaded holes that correspond one-to-one with the second screws.

[0012] The flange and retaining ring are made of an integrated steel structure.

[0013] The sealing plate and the guide sleeve are made of an integrated steel structure.

[0014] The sealing plate has a bearing seat inside, and a rotating shaft is concentrically arranged in the bearing seat to be inserted into the end of the plow blade main shaft. The end of the plow blade main shaft has a blind hole corresponding to the front end of the rotating shaft.

[0015] The beneficial effects of this utility model are as follows: A cavity sealing structure for a premixed castable equipment achieves two seals through the cooperation of a first sealing ring and a second sealing ring. The first sealing ring can be squeezed and sealed by a sealing plate, and the second sealing ring can be squeezed and sealed by a pressure ring. They do not interfere with each other, ensuring the reliability of the seal. Moreover, after the sealing plate is installed, it can be inserted into the end of the plow blade main shaft by a rotating shaft, ensuring the rotational support of the plow blade main shaft. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 yes Figure 1 A magnified view of part A in the middle. Detailed Implementation

[0018] The following is combined with Figures 1 to 2 The technical solution of this utility model will be further illustrated through specific embodiments.

[0019] like Figure 1 and Figure 2 The cavity sealing structure of the premixing equipment for castables shown includes: a horizontal cylinder 1, a sealing plate 3, a plow shaft 2, a first sealing ring 11, and a second sealing ring 12. The open end of the horizontal cylinder 1 is provided with a flange 9, which is welded and fixed to the open end of the horizontal cylinder 1. The structure is firm and the sealing performance at the connection is good.

[0020] like Figure 2 As shown, a first annular groove 15 is recessed on the front side of the flange 9, the first sealing ring 11 is disposed in the first annular groove 15, and the sealing plate 3 is disposed on the front side of the flange 9 and compresses the first sealing ring 11 to form a first seal.

[0021] In this embodiment, the sealing plate 3 is provided with a first screw 6 that connects to the flange 9, and the flange 9 is provided with a first threaded hole that corresponds one-to-one with the first screw 6, which facilitates assembly and realizes the fixing of the sealing plate 3 and the compression of the first sealing ring 11.

[0022] like Figure 1 As shown, the sealing plate 3 has a guide sleeve 7 fitted onto the outer wall of the flange at its edge. In this embodiment, the sealing plate 3 and the guide sleeve 7 are made of an integrated steel structure with high strength. The front end of the inner hole of the guide sleeve 7 is recessed with a second annular groove 13, and the second sealing ring 12 is disposed in the second annular groove 13, forming a second seal through the second sealing ring 12, which does not interfere with the first sealing ring 11.

[0023] A retaining ring 14 is provided on the flange 9, located in front of the guide sleeve 7. The flange 9 and the retaining ring 14 are made of an integrated steel structure, formed by machining, ensuring a reliable structure. A pressure ring 10 is provided in the second annular groove 13, located in front of the second sealing ring 12, such as... Figure 2 As shown, the second sealing ring 12 is sealed by compression through the pressure ring 10.

[0024] In this embodiment, the retaining ring 14 is provided with a second screw 8 pointing backward toward the pressure ring 10. The retaining ring 14 is provided with a ring array of second threaded holes corresponding one-to-one with the second screw 8. The pressure ring 10 is driven by the rotation of the second screw 8, so that the second sealing ring 12 can be squeezed and sealed by the pressure ring 10 to ensure the sealing effect.

[0025] The plow blade spindle 2 is concentrically arranged in the horizontal cylinder 1, such as... Figure 1 As shown, a bearing seat 4 is provided on the inner side of the sealing plate 3. A rotating shaft 5 is concentrically provided on the bearing seat 4 and inserted into the end of the plow blade main shaft 2. The end of the plow blade main shaft 2 is provided with a blind hole corresponding to the front end of the rotating shaft 5. The assembly is convenient. The rotation of the plow blade main shaft 2 is supported by the rotating shaft 5, which has high stability. The sealing plate 3 is easy to disassemble and assemble.

[0026] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A cavity sealing structure for a castable premixing equipment, characterized in that, include: The system comprises a horizontal cylindrical body, a sealing plate, a plow blade main shaft, a first sealing ring, and a second sealing ring. The plow blade main shaft is concentrically arranged within the horizontal cylindrical body. A flange is provided at the open end of the horizontal cylindrical body. A first annular groove is recessed on the front side of the flange. The first sealing ring is disposed in the first annular groove. The sealing plate is disposed on the front side of the flange and compresses and seals the first sealing ring. A guide sleeve is provided on the edge of the sealing plate and fitted onto the outer wall of the flange. A retaining ring is provided on the flange in front of the guide sleeve. A second annular groove is recessed at the front end of the inner hole of the guide sleeve. The second sealing ring is disposed in the second annular groove. A pressure ring is provided in front of the second sealing ring in the second annular groove.

2. The sealing structure of the cavity of the castable premixing equipment according to claim 1, characterized in that, The flange is welded and fixed to the open end of the horizontal cylinder.

3. The sealing structure of the cavity of the castable premixing equipment according to claim 1, characterized in that, The sealing plate is provided with a first screw that connects to the flange, and the flange is provided with a first threaded hole that corresponds one-to-one with the first screw.

4. The sealing structure of the cavity of the castable premixing equipment according to claim 1, characterized in that, The retaining ring is provided with a second screw pointing backward toward the pressure ring.

5. The sealing structure of the cavity of the castable premixing equipment according to claim 4, characterized in that, The retaining ring has a ring array of second threaded holes that correspond one-to-one with the second screws.

6. The sealing structure of the cavity of the castable premixing equipment according to claim 1, characterized in that, The flange and retaining ring are made of an integrated steel structure.

7. The sealing structure of the cavity of the castable premixing equipment according to claim 1, characterized in that, The sealing plate and guide sleeve adopt an integrated steel structure.

8. The sealing structure of the cavity of the castable premixing equipment according to claim 1, characterized in that, A bearing seat is provided on the inner side of the sealing plate, and a rotating shaft is concentrically arranged on the bearing seat to be inserted into the end of the plow blade main shaft. The end of the plow blade main shaft is provided with a blind hole corresponding to the front end of the rotating shaft.

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