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U-shaped double-hopper cyclone dust removal device

A technology of cyclone dust collector and cyclone separator, which is applied in the direction of swirling devices and devices whose axial direction can be reversed, can solve the problems of many consumables, affect boiler efficiency, and occupy a large area, and achieve reduction The effect of secondary disturbance, high fixed safety, and improved dust removal efficiency

Inactive Publication Date: 2019-01-01
HARBIN UNIV OF SCI & TECH
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Problems solved by technology

However, there are also problems of large volume, many consumables, heavy weight, and high production costs, and there are problems of difficulty in fixing and large floor space during the supporting use of the boiler, which seriously affects the efficiency of the boiler.

Method used

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  • U-shaped double-hopper cyclone dust removal device
  • U-shaped double-hopper cyclone dust removal device
  • U-shaped double-hopper cyclone dust removal device

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Embodiment Construction

[0008] According to the formula The centrifugation of the particles is related to the mass, velocity and centrifugal radius of the particles. For centrifugal separators, the greater the centrifugal force on solid particles, the better the separation effect. Therefore, the cyclone separator requires the fluid to have a larger inlet velocity and a smaller centrifugal radius. However, the increase of the inlet velocity will increase the energy loss of the separator, and the smaller centrifugal radius will affect the structural size and dust handling capacity. Taking into account the simulation ( Figure 5 ), the separation effect has been greatly improved compared with the ordinary cyclone separator and inertial separation, and it is almost unlimited in terms of structure matching and flue gas treatment capacity, because this structure makes the turning radius of the fluid locally smaller, not comprehensive smaller.

[0009] The working principle of the double-bucket cyclone...

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Abstract

The invention relates to the structural optimization design of a novel cyclone separator. According to the present invention, the original cyclone separator is improved and optimized so as to providethe novel dust removal technology for the circulating fluidized bed boiler, wherein the middle section is changed into the structure having two ash hoppers, and the flue gas outlet is cooperatively improved, such that the ash hoppers on both sides achieve the multi-stage dust removal and improve the dust removal efficiency, and the matching of the middle flue gas outlet and the outer side gradual-shrinkage structure achieves the small curvature radius turning of the fluid and strengthen the dust removal effect; the structure of the present invention is easy to install and fix compared to the original structure; and the main structure of the invention comprises an inlet vortex, a middle separation section with ash hoppers, a lower dust and ash collection hopper and an outlet pipe, wherein the main improvement comprises: the middle separation section with the ash hoppers and the outlet pipe.

Description

technical field [0001] The invention relates to a structural optimization design of a cyclone separator, which can realize multi-stage separation of dust, improve the dust removal efficiency of the cyclone dust collector, and enhance the effect of material recycling. The device is compact and easy to install and fix. Background technique [0002] Cyclone separator dust removal technology is a new dust removal technology proposed on the basis of the rapid development of circulating fluidized bed boilers. Nowadays, the cyclone separator is one of the important components of the circulating fluidized bed. Its main function is to separate a large amount of high-temperature solid materials from the flue gas, and then send them back to the combustion chamber through the feeder to maintain the circulation rate and good fluidization state, to achieve Ideal combustion and desulfurization effect. Compared with the traditional technology, the cyclone separator has high working efficie...

Claims

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Application Information

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IPC IPC(8): B04C5/081B04C5/08
CPCB04C5/08B04C5/081
Inventor 陈巨辉崔领振董宝军齐浩轩李想李欣冯道臣
Owner HARBIN UNIV OF SCI & TECH
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