Plunger type coal ash pressurized conveying device

Abstract

The invention provides a plunger type coal ash pressurized conveying device and belongs to the technical field of coal chemical engineering for solving the problems that an existing coal ash pressurized conveying technology is low and the like. The device provided by the invention comprises a driving part and two conveying channels which are arranged in parallel; the upper and lower ends of each of the conveying channels are connected to a constant pressure storage tank and a coal ash feeding tank, respectively; a constant pressure feeding valve is arranged at the upper end of each of the conveying channels, the lower end outlet of the constant pressure feeding valve is connected to a stretchable coal ash conveying pipeline, the lower end of the stretchable coal ash conveying pipeline is connected to a worm coal ash conveying pipeline, the lower end of the worm coal ash conveying pipeline is connected to a coal as feeding valve in a piston part, the piston part is located in a coal ash conveying cavity, the lower end output port of the coal ash conveying cavity is connected to the upper end inlet of a blanking section, the lower end outlet of the blanking section is connected to a coal ash feeding tank, and a coal ash blanking valve is arranged at the connection of the coal ash conveying cavity and the blanking section; the driving part is used for driving the piston rod to do a reciprocating rectilinear movement. The device has the characteristic of being low in energy consumption.

Description

technical field [0001] The invention relates to the technical field of coal chemical industry, in particular to a plunger type pulverized coal pressure conveying device. Background technique [0002] The pressurized conveying process of powder is involved in many fields such as coal chemical industry, metallurgy, and food processing. Coal gasification, especially pulverized coal pressurized gasification is a clean coal utilization technology, which has been developed rapidly in recent years and has been used more and more widely. Pulverized coal pressurized conveying technology is an indispensable technical link in pulverized coal pressurized gasification technology. Pulverized coal pressurized conveying technology is to increase dry coal powder from normal pressure to a specific high pressure, so as to realize the combustion and gasification of pulverized coal under high pressure. [0003] The pulverized coal pressurized conveying technology currently used in industry is ...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that current pulverized coal pressurized conveying technology emits a large amount of inert gas, which causes serious environmental pollution; the conveying process is inefficient, and although the feeding amount can be stable and controllable, it cannot be adjusted continuously; high-pressure equipment with large volume and high cost is required; High energy consumption, high requirements for the sealing and pressure resistance of pulverized coal pipeline valves, etc., the embodiment of the present invention provides a plunger type pulverized coal pressurized conveying device, which increases the pressure of pulverized coal through the movement of the piston parts, without the need for inert gas Participate in the transportation, and can carry out continuous transportation of pulverized coal at the same time, which has the advantage of low energy consumption

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