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A pressure regulating mixer

A mixer and negative pressure technology, applied in fluid mixers, mixers, chemical instruments and methods, etc., can solve the problems of difficult negative pressure adjustment, large resistance loss, powder accumulation in the blanking chamber, etc., and achieve convenient adjustment of negative pressure. pressure, ensure powder transportation, and reduce the effect of resistance loss

Active Publication Date: 2022-03-15
CHINA COAL RES INST CCRI ENERGY SAVING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a pressure-regulating mixer to solve the problems of high-pressure Venturi mixers such as large resistance loss, powder accumulation in the blanking chamber, and difficulty in negative pressure adjustment.

Method used

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Examples

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Effect test

Embodiment 1

[0022] Embodiment 1 provides a plate type pressure regulating mixer, and its structure will be described in detail below.

[0023] refer to figure 1 , the high-pressure Venturi mixer includes a powder inlet 3 and a mixer body 7, the mixer body 7 is an important place for mixing powder and carrier gas, the powder inlet 3 is arranged on the side wall of the mixer body 7, and the powder The material falls into the mixer main body 7 from the powder inlet 3, and a blanking chamber 71 is arranged in the mixer main body 7 facing the powder inlet 3, and a nozzle 72 is arranged in the blanking chamber 71, and the carrier gas flows from the nozzle 72 spray out.

[0024] On the basis of the existing high-pressure Venturi mixer, the plate-type pressure-regulating mixer provided in Example 1 improves it. Specifically, the two ends of the mixer body 7 are respectively set as the carrier gas inlet 1 and the gas-solid two-phase outlet 2, refer to figure 2 , usually connected to a square p...

Embodiment 2

[0038] Embodiment 2 provides a knob-type pressure-regulating mixer. On the basis of Embodiment 1, the negative pressure regulating mechanism is improved, and the improvements will be described in detail below.

[0039] As another embodiment of the negative pressure adjusting mechanism, the negative pressure adjusting mechanism includes a negative pressure adjusting rotating plate 15 and a rotating shaft 16 .

[0040] refer to Figure 4 and Figure 5 The fixed end of the negative pressure adjusting rotating plate 15 is arranged on the inner wall of the connection between the powder inlet 3 and the mixer main body 7, and the movable end of the negative pressure adjusting rotating plate 15 extends into the blanking chamber inside the mixer main body 7 71,

[0041] The lower bottom surface of the negative pressure adjustment rotary plate 15 and the two sides of the adjacent mixer main body 7 and the bottom surface of the mixer main body 7 opposite to it form the nozzle 72, and t...

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Abstract

The invention discloses a pressure-regulating mixer, which comprises a powder inlet and a mixer main body, the powder inlet is arranged on the side wall of the mixer main body, and a blanking chamber is arranged inside the mixer main body facing the powder inlet. A nozzle is arranged in the blanking chamber, and the pressure regulating mixer also includes a pressure regulating assembly and a pressure equalizing chamber, and the pressure regulating assembly includes a negative pressure regulating mechanism. In the pressure regulating mixer disclosed by the present invention, the negative pressure regulating mechanism enters into the interior of the mixer main body to block the spraying of the nozzle, and adjusts the negative pressure in the mixer main body by adjusting the size of the spraying range of the nozzle, thereby reducing the resistance loss of the mixer; The pressure equalizing chamber and its pressure measuring hole prevent powder from accumulating in the blanking chamber; online adjustment of negative pressure can be easily realized, ensuring uniform and stable powder delivery.

Description

technical field [0001] The invention relates to the technical field of powder conveying, in particular to a pressure regulating mixer. Background technique [0002] Venturi mixer is a kind of equipment that can efficiently mix gas and water, also known as jet mixer. It consists of three parts: nozzle, powder inlet and blanking chamber. It has high-efficiency gas-water mixing, anti-backwater and negative pressure. Suction and other functions are commonly used in the powder conveying industry. The design of the equipment is based on the Bernoulli equation, and the working principle is: the contraction of the cross-sectional area of ​​the pipeline accelerates the fluid to generate high-speed airflow, resulting in the conversion of static pressure in a local area into dynamic pressure, thereby generating a drop in absolute pressure and forming a negative pressure zone. Usually there is a region of high turbulence downstream of the negative pressure zone, which facilitates powde...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F25/312
CPCB01F25/3125B01F25/31252B01F25/312
Inventor 刘振宇杨石张鑫王志强程鹏牛芳崔豫泓程晓磊李婷王永英陈隆潘冠福李美军李慧邢文朝
Owner CHINA COAL RES INST CCRI ENERGY SAVING TECH CO LTD
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