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Fluidized bed granulation system

A technology of fluidized bed granulation and fluidized bed cooler, which is applied in the direction of powder suspension granulation, etc., can solve the problems of high engineering investment and high energy consumption of the fluidized bed granulation system, so as to save engineering investment and reduce Equipment investment and energy consumption, the effect of reducing energy consumption

Inactive Publication Date: 2013-08-21
BEIJING FUNGHAN ENG CONSULTING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is how to overcome the disadvantages of high energy consumption and high engineering investment of the known fluidized bed granulation system. Fluidized bed granulation system for frame investment

Method used

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Embodiment Construction

[0020] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. The direction of the arrow in the drawings is the direction of material or gas transmission in the system.

[0021] Such as figure 2 As shown, it is a schematic flow diagram of the fluidized bed granulation system of this embodiment, and the system includes sequentially connected on the process flow: fluidized bed granulator 5, fluidized bed cooler 6, vibrating feeder 16 and screening machine 7; The screening machine 7 includes three screening outlets for large particles, medium particles and small particles; wherein, the particle size of the medium particles is two kinds of 2-4.75mm or 4-8mm, and the large particles and small particles are relative to the medium particles...

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Abstract

The invention relates to the fluidized bed granulation system field, and discloses a fluidized bed granulation system. The fluidized bed granulation system comprises a fluidized bed granulator, a fluidized bed cooler, a vibration feeder and a screener which are sequentially connected in the process flow; the screener comprises a large granule screening outlet, a medium granule screening outlet and a small granule screening outlet; the medium granule screening outlet is connected to the outside battery limit or a final product cooler; the small granule screening outlet is connected to a bucket elevator; the large granule screening outlet is connected to a crusher and then is connected to the bucket elevator; and the material outlet of the bucket elevator is connected to the fluidized bed granulator. Compared with a granulation system obtained through a traditional design, the granulation system disclosed in the invention has the advantages of decrease of above 10m of the height of the structural framework, reduction of above 50% of the required elevation apparatus capability, obvious reduction of the energy consumption required by the material elevation during normal running, substantial engineering and equipment investment saving, and reduction of the running energy consumption of the system.

Description

technical field [0001] The invention relates to a fluidized bed granulation system, in particular to a fluidized bed granulation system with a screening treatment section placed below. Background technique [0002] In the field of granulation molding, the fluidized bed granulation process is a widely used process. For example, in the fertilizer industry, the fluidized bed granulation process is used for the production of urea granules (2-4.75mm or 4-8mm). Its general process is (combined with figure 1 ): Seed particles are wrapped by atomized molten droplets in the fluidized bed granulator (passed by fluidizing wind and atomizing wind), and the size becomes larger to form larger particles, which are initially cooled by the fluidized bed cooler After reaching a certain temperature, it is transported and lifted to a certain height for screening, and the sieved granular products (medium granules) enter the final product cooler to be further cooled and then sent out of the boun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J2/16
CPCB01J2/16
Inventor 王威
Owner BEIJING FUNGHAN ENG CONSULTING
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