Dense-phase conveying system and method

A dense-phase conveying and conveying system technology, which is applied in the direction of conveyors, conveying bulk materials, transportation and packaging, etc., can solve problems such as pressure fluctuations, unstable and discontinuous powder conveying, achieve stable conveying, and solve series feeding unstable effect

Active Publication Date: 2014-03-26
ENN SCI & TECH DEV
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Problems solved by technology

The powder is densely transported from the high-pressure silo to the reactor. When the high-pressure silo is fed to a certain level, it is necessary to supplement the feed to the high-pressure silo through the pressure-changing silo. The high-pressure silo feeds while discharging, and simultaneously The operation of feeding and discharging is likely to cause pressure fluctuations in the high-pressure silo, resulting in unstable and discontinuous powder transportation; especially in the case of high solid-gas ratio dense phase transportation, pressure disturbances can easily cause unstable transportation and jam

Method used

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Embodiment Construction

[0023] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0024] figure 1 Shown is a schematic diagram of the structure of the dense-phase conveying system of the embodiment of the present invention. figure 2 shown as figure 1 Schematic diagram of the dense-phase transport system. See figure 1 with figure 2 , the dense-phase conveying system 10 of this embodiment is used to transport the powder to a reactor 101. In this embodiment, the powder is pulverized coal. After the pulverized coal enters the reactor 101, under a certain temperature and pressure, It reacts chemically with oxidants and turns into gas. It should be noted that in the present invention, the type of powder is not limited.

[00...

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Abstract

A dense-phase conveying system is used for conveying powder to a reactor. The dense-phase conveying system comprises at least two conveying systems, each conveying system comprises stock bin lock hoppers and stock bins used for adding the powder into the stock bin lock hoppers. At least two stock bin lock hoppers are communicated with the reactor in parallel and used for alternately conveying the powder to the reactor. The invention further provides a dense-phase conveying method. The dense-phase conveying system and method can continuously and stably transport the powder.

Description

technical field [0001] The invention relates to the technical field of solid material transportation, in particular to a powder dense-phase transportation system and method. Background technique [0002] Since the pneumatic conveying technology of solid materials in the pipeline began to be industrialized in the first half of the 19th century, it has been widely used in chemical industry, power generation, pharmaceuticals, food, etc. , construction, metallurgy and other industries. Pneumatic conveying can be divided into dilute-phase conveying and dense-phase conveying. Compared with dilute-phase conveying, dense-phase conveying has a series of advantages such as low energy consumption, saving pipe materials, and slight pipeline wear, and has been recognized by more and more industries. . [0003] The existing dense-phase conveying system generally adopts the connection mode of 3 tanks in series of normal pressure silo, variable pressure silo and high pressure silo. The p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G53/16
Inventor 汪国庆周三汤海奇刘明方科学马志超田文堂邓义林闫云东马丽荣
Owner ENN SCI & TECH DEV
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