Hypergravity fluidization vapor deposition reaction device
A technology of gas phase deposition and reaction device, which is applied in the field of high gravity fluidized gas phase deposition reaction device, can solve the problems of uneven fluidization state, difficulty in process amplification, and difficulty in eliminating bubbles in the fluidized bed layer, and achieve the elimination of bubble phase, Ensure fast and thorough mixing and improve process efficiency
Inactive Publication Date: 2010-06-02
SHANGHAI JIAO TONG UNIV
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Problems solved by technology
The usual centrifugal fluidization device adopts a cylindrical rotating shell, which has difficulties in process amplification. At the same time, the change of centrifugal acceleration in the radial direction leads to uneven fluidization state, and it is difficult to eliminate the bubble phase in the fluidized bed.
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[0023] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention. The detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following examples.
[0024] like figure 1 As shown, this embodiment includes: a housing 1, a fluidization chamber 2, a rotating shaft 3, a stirring blade 4, an air outlet 5 and a discharge collection port 6, wherein: the fluidizing chamber 2, the rotating shaft 3 and the stirring blade 4 are respectively provided Inside the casing 1 , the rotating shaft 3 is connected to the stirring blade 4 , the bottom of the casing 1 is connected to the discharge collecting port 6 , and the air outlet 5 is arranged in the middle of the casing 1 .
[0025] The shell 1 includes: a central shell 7 and a fluidized shell 8, wherein...
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Abstract
The invention relates to a hypergravity fluidization vapor deposition reaction device belonging to the technical field of chemical engineering and comprising a shell, a fluidizing chamber, a rotating shaft, a stirring blade, an air outlet and a discharge collecting port. The fluidizing chamber, the rotating shaft and the stirring blade are respectively arranged inside the shell; the rotating shaft is connected with the stirring blade; the shell is connected with the discharge collecting port; and the air outlet is arranged on the shell. The shell comprises a central shell and a fluidizing shell, wherein the central shell is a cylinder and the fluidizing shell is a conical, oval or circular sealing ring body; the fluidizing shell is arranged outside the circumferential surface of the central shell and coats outside the fluidizing chamber; the rotating shaft is positioned on the central shell; and the stirring blade is braised by a plurality of steel wires. The invention can eliminate bubble phases in a fluidized bed layer and simultaneously ensures rapid and full mixing of reacting gas and fluidizing gas; in addition, the impact between the steel wire stirring blade and solid particles is concomitant with heterogeneous nucleating ability and the granule distribution balance of the fluidized bed layer can be controlled by adjusting the intervals of steel wires on the stirring blade without additionally adding crystal seeds.
Description
technical field [0001] The invention relates to a device in the technical field of chemical industry, in particular to a high-gravity fluidized vapor deposition reaction device. Background technique [0002] Chemical Vapor Deposition CVD (Chemical Vapor Deposition) uses gas or vapor state substances to react on the gas phase or gas-solid interface to form solid deposits. It is an important production preparation or surface treatment technology for granular materials. The efficiency of the CVD process is closely related to the gas-solid two-phase transfer process, so the particle fluidized CVD reaction device has received extensive attention. [0003] Found through document retrieval to prior art, Chinese literature: Fluidization Handbook, Beijing: Chemical Industry Press, 2008, 771 pages, edited by Guo Musun and Li Hongzhong, this technology discloses a kind of agitated fluidized bed, agitated fluidized The bed can effectively suppress the bubble phase and channel flow in t...
Claims
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IPC IPC(8): B01J8/10B01J19/18C23C16/442
Inventor 阎建民丁伟杰肖文德
Owner SHANGHAI JIAO TONG UNIV