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Positive pressure pneumatic transmission system and method

A pneumatic conveying system and pneumatic conveying technology, applied in the direction of conveyors, conveying bulk materials, transportation and packaging, etc., can solve the problems of high cost of valves, increase of equipment costs, large size of warehouse pumps, etc., to overcome the high cost of valves, The effect of improving stability and improving conveying efficiency

Active Publication Date: 2014-03-26
克莱德华通(北京)物料输送系统有限公司
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Problems solved by technology

[0006] However, due to the requirement of the delivery volume, sometimes the size of the warehouse pump 20' is very large, it is difficult to find a valve that can be matched with the large-sized warehouse pump, or the cost of the valve is too high, which increases the equipment cost

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  • Positive pressure pneumatic transmission system and method
  • Positive pressure pneumatic transmission system and method
  • Positive pressure pneumatic transmission system and method

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Embodiment Construction

[0026] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0027] The pneumatic conveying system is very sensitive to the particle size and concentration of the conveyed material, especially for long-distance and coarse-grained materials, the stability of the conveying system is very high. For example, in thermal power plants, the quality of coal is getting worse day by day, and the particle size distribution of coal ash after combustion becomes coarser and unstable, which makes the conveying system prone to clogging accidents, resulting in severe accidents of production and shutdown. Therefore, the conveying system The stability requirements are higher.

[0028] Such as image 3 As shown, the present invention provides a positive pressure pneumatic conveying system, comprising an air inlet pipeline 30, the first end of which communicates with the first compressed air source; Multiple warehouse pumps 20, the low...

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Abstract

The invention provides a positive pressure pneumatic transmission system and a method. The positive pressure pneumatic transmission system comprises an air inlet pipeline (30), a delivery pipeline (50), a plurality of warehouse pumps (20) and a material adjuster (60). The first end of the air inlet pipeline is communicated with a first compression air source. The delivery pipeline is provided with a first end communicated with the air inlet pipeline (30). The lower ends of the warehouse pumps (20) are communicated with the delivery pipeline (50). The material adjuster (60) is arranged in the warehouse pumps (20) and comprises a flow stopping blocking body (61) arranged in the warehouse pumps (20). The lower ends of the warehouse pumps (20) have cone segments. The material adjuster (60) is arranged in an extension-type manner in the cone segments of the warehouse pumps (20) along axial direction of the warehouse pumps (20). The positive pressure pneumatic transmission method includes the following steps: feeding materials in the plurality of warehouse pumps, enabling the materials to drop into the delivery pipeline through the material adjuster and introducing compression air in the air inlet pipeline with the air quantity ranging from 0 to a rated value. The positive pressure pneumatic transmission system and the method resolve the problem of difficulty in coarse ash delivery, enable continuous delivery of coarse ash to be achieved, improve delivery efficiency of the delivery system, improve system stability and overcome the shortcomings of high valve cost of large warehouse pumps and high equipment cost.

Description

technical field [0001] The present invention relates to the field of pneumatic conveying, more specifically, to a positive pressure pneumatic conveying system and method. Background technique [0002] The pneumatic conveying system adopts the principle of gas-solid two-phase flow, uses compressed air as the medium and power of conveying materials, and conveys powdery materials to remote collection points. Pneumatic conveying technology is divided into negative pressure pneumatic conveying, low positive pressure pneumatic conveying, positive pressure pneumatic conveying, etc. The positive pressure pneumatic conveying system has been widely used due to its advantages of low air consumption, large conveying output, and small pipeline wear. [0003] The pneumatic conveying system in the prior art adopts the mode of connecting multiple warehouse pumps in series. Take the positive pressure pneumatic conveying system under the ash hopper of the electrostatic precipitator in a the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65G53/12
Inventor 雷景贵孔祥云叶坤李锋岩
Owner 克莱德华通(北京)物料输送系统有限公司
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