Combined sealing device for stirring shaft of alloyed gold reaction kettle
Through the combination of three-stage sealing structure, polytetrafluoroethylene sealing gas and mechanical sealing, the problems of flue gas spillage and acidic flue gas corrosion in the synthetic gold reactor are solved, improving the stability of the equipment and reducing maintenance costs.
Patent Information
- Application Number
- CN202422355894.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The sealing device of existing synthetic gold reactors is prone to cause flue gas spillage and acidic flue gas to corrode the bearing chamber during the hydrometallurgy process, resulting in abnormal equipment operation and high maintenance costs.
A three-stage seal structure is adopted, including a sealing gasket, mechanical seal and shaft sleeve, combined with a polytetrafluoroethylene sealing gasket and a 212 mechanical seal, to achieve multiple seals of the agitating shaft, prevent smoke from spilling out and fix the agitating shaft, and reduce radial shaking.
Effectively prevent flue gas spillage and acid flue gas corrosion, reduce the speed reducer failure rate, avoid bending and deformation of the agitator shaft, improve equipment operation stability and reduce maintenance costs.
Smart Images
Figure CN223128040U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of smelting equipment, and particularly relates to a combined seal device for a stirring shaft of a crude gold autoclave. Background Art
[0002] As a device widely used in industrial production and laboratories, an autoclave is essentially a container capable of realizing physical or chemical reactions. By coordinating its structural characteristics and various data parameters, functions such as heating, evaporation cooling, and mixing required in industrial production or technical experiment processes can be achieved. In the process of hydrometallurgy, under heating conditions, the addition of acidic reagents often generates strongly corrosive gases in the autoclave. When ordinary tetrafluoro seals are used, the acidic corrosive gases generated in the autoclave are easily penetrated through the seals and dissipated into the production environment, resulting in a poor production environment. There is also a situation where the gases enter the bearing seal, accelerating the deterioration of the bearing lubricating oil and corroding the bearings, leading to abnormal stirring operation and even damage and shutdown.
[0003] In view of the deficiencies of the existing technology of the seal device of the crude gold autoclave, the purpose of the utility model is to provide a combined stirring seal device for a crude gold autoclave, which is mainly used to avoid the overflow of flue gas during the operation of the autoclave and protect the stirring bearing from being corroded by the flue gas generated in the autoclave. Summary of the Utility Model
[0004] The utility model provides a combined seal device for a stirring shaft of a crude gold autoclave to solve the above problems.
[0005] The technical solution of the utility model is realized as follows: A combined seal device for a stirring shaft of a crude gold autoclave includes an autoclave cover. A stirring shaft is arranged in the central hole of the autoclave cover. A seal chamber is fixedly arranged above the autoclave cover through bolts. A seal pressing plate is arranged at the bottom of the seal chamber. The seal pressing plate and the autoclave cover are fixedly connected through bolts. A gasket is arranged between the seal pressing plate and the autoclave cover. A mechanical seal is arranged above the seal pressing plate. The mechanical seal is located outside the stirring shaft and fixedly connected with the autoclave cover. A bottom plate is arranged above the seal chamber. The bottom plate is fixedly connected with a stirring support. A shaft sleeve is arranged on the bottom plate. The shaft sleeve is located in the packing. The packing is located outside the stirring shaft.
[0006] Preferably, the gasket is made of polytetrafluoroethylene with a thickness of 10 mm.
[0007] The beneficial effects of the utility model are as follows: the utility model can effectively prevent the flue gas in the hydrometallurgical process from overflowing from the gap of the stirring shaft through the three-level seal, and at the same time prevent the acidic flue gas emitted during the reaction from corroding the bearing chamber. On the other hand, by increasing the mechanical seal fixation, the radial shaking of the stirring shaft is eliminated, the failure rate of the reducer is reduced, the bending deformation of the stirring shaft caused by radial shaking is avoided, the equipment maintenance cost is reduced, and the equipment operation stability is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a schematic diagram of the structure of the utility model;
[0009] Figure 2 It is a top view of the utility model.
[0010] Parts description: 1. Reactor cover, 2. Sealing chamber, 3. Mechanical seal, 4. Sealing pressure plate, 5. Sealing gasket, 6. Bottom plate, 7. Bushing, 8. Packing, 9. Stirring shaft. DETAILED DESCRIPTION
[0011] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0012] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0013] Refer to the attached Figure 1-2, A combined seal device for the stirring shaft of a crude gold autoclave, comprising a reactor cover 1. A stirring shaft 8 is arranged in the central hole of the reactor cover 1. A seal chamber 2 is fixedly arranged above the reactor cover 1 through bolts. A seal pressing plate 4 is arranged at the bottom of the seal chamber 2. The seal pressing plate 4 and the reactor cover 1 are fixedly connected through bolts, and a middle opening is provided for the stirring shaft to pass through. A gasket 5 is arranged between the seal pressing plate 4 and the reactor cover 1. The gasket 5 is made of polytetrafluoroethylene material with a thickness of 10 mm, and primary sealing is carried out through the seal pressing plate 4 and the gasket 5. A mechanical seal 3 is arranged above the seal pressing plate 4. The mechanical seal 3 adopts a type 212 mechanical seal. The mechanical seal 3 is located outside the stirring shaft 9 and is fixedly connected to the reactor cover 1, playing a role in fixing the stirring shaft and secondary sealing. A bottom plate 6 is arranged above the seal chamber 2. The bottom plate 6 is fixedly connected to the stirring support. A shaft sleeve 7 is arranged on the bottom plate 6. The shaft sleeve 7 is located within the packing 8. The packing 8 is located outside the stirring shaft 9, playing a role in tertiary sealing.
[0014] The utility model can effectively avoid the situation that the flue gas in the hydrometallurgy process overflows from the gap of the stirring shaft through three-stage sealing, and at the same time avoid the situation that the acidic flue gas escaping during the reaction corrodes the bearing chamber. On the other hand, by increasing the fixation of the mechanical seal, the radial shaking of the stirring shaft is eliminated, the failure rate of the reducer is reduced, the phenomenon of bending deformation of the stirring shaft caused by radial shaking is avoided, the equipment maintenance cost is reduced, and the operation stability of the equipment is improved.
[0015] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution and the inventive concept of the utility model, makes equivalent replacements or changes, and all should be covered within the protection scope of the utility model.
Claims
1. A combined sealing device for the stirring shaft of a crude gold autoclave, comprising an autoclave cover (1), and a stirring shaft (9) is arranged in the central hole of the autoclave cover (1), characterized in that Above the reactor cover (1), a sealing chamber (2) is fixedly provided by bolts. At the bottom of the sealing chamber (2), there is a sealing pressing plate (4). The sealing pressing plate (4) and the reactor cover (1) are fixedly connected by bolts. A sealing gasket (5) is provided between the sealing pressing plate (4) and the reactor cover (1). Above the sealing pressing plate (4), there is a mechanical seal (3). The mechanical seal (3) is located outside the stirring shaft (9) and is fixedly connected to the reactor cover (1). Above the sealing chamber (2), there is a bottom plate (6). The bottom plate (6) is fixedly connected to the stirring support. On the bottom plate (6), there is a shaft sleeve (7). The shaft sleeve (7) is located within the packing (8). The packing (8) is located outside the stirring shaft (9).
2. The combined sealing device for the stirring shaft of a crude gold autoclave according to claim 1, characterized in that The sealing gasket (5) is made of polytetrafluoroethylene with a thickness of 10 mm.