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Anti-blocking powder delivery device with vanes and spraying device

A technology of conveying equipment and equipment, which is applied in the field of powder conveying and can solve problems such as powder material clogging

Inactive Publication Date: 2014-05-07
山东平原驰神节能设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the clogging problem when powder materials are conveyed, the designer provides a powder conveying equipment and method with anti-blocking function

Method used

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  • Anti-blocking powder delivery device with vanes and spraying device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Taking pulverized coal as an example, when the flow rate drops to 70% of the normal flow rate, start the injection device 5 and blade 4 (the nozzle of the blade is not activated), the nozzle of the injection device injects gas upwards, the angle between the nozzle and the horizontal is 35°, and the measured flow rate resumes to 95% of normal flow energy consumption.

Embodiment 2

[0027] Taking pulverized coal as an example, when the flow rate drops to 70% of the normal flow rate, start the injection device 5 and blade 4 (start the nozzle of the blade at the same time, the nozzle on the blade sprays gas downward, and the angle between the nozzle and the horizontal is 75°), the injection device The nozzle sprays gas upwards, the angle between the nozzle and the horizontal is 35°, and the measured flow rate returns to 95% of the normal flow rate.

[0028] Taking the energy consumption of Comparative Example 1 as 1, calculate the energy consumption of other Comparative Examples and Examples, see Table 1.

[0029]

[0030] It can be seen from the table that having both blades and injection equipment can reduce the energy consumption of anti-blocking.

Embodiment 3

[0032] Taking pulverized coal as an example, when the flow rate drops to 70% of the normal flow rate, start the injection device 5 and blade 4 (the nozzle of the blade is not activated), the nozzle of the injection device injects gas upwards, and the angle between the nozzle and the horizontal is 15, 25, 35, 45, 55°. Measure the energy consumption at which flow returns to 95% of normal flow. Taking the energy consumption of an included angle of 15° as 1, calculate the energy consumption of other included angles, see Table 2.

[0033]

[0034] As can be seen from the table, 35° has the lowest energy consumption.

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Abstract

A powder delivery device comprises at least one conical material hopper which comprises an upper feeding section and a lower feeding section. A spraying device and vanes are arranged on the lower feeding section, the spraying device is arranged under the vanes, a nozzle of the spraying device sprays gas toward the inner wall of the lower feeding section, and the vanes are connected with a rotating shaft and rotate through the rotating shaft. The anti-blocking powder delivery device improves anti-blocking efficiency and reduces energy consumption.

Description

technical field [0001] The invention belongs to the field of powder conveying, and in particular relates to a powder conveying device with an anti-blocking function, in particular to a powder conveying device with an anti-blocking function when conveying along a gravity field. Background technique [0002] At present, powder conveying is a very common process in the fields of chemical industry and boilers, among which the vertical conveying of powder is the most common process. Generally speaking, in order to save energy, the powder transportation along the gravity field relies on the gravity to carry out the free falling of the powder for transportation. The powder conveying equipment along the gravity field includes at least one conical hopper, and the conical hopper includes an upper feeding section and a lower feeding section. Although the outlet size of the feeding section is much larger than the particle size of the powder, it is still possible to form a bridge when t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D88/70B65D88/68
Inventor 程晓堂
Owner 山东平原驰神节能设备有限公司
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