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Anti-blocking powder conveying equipment

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: 2012-10-10
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 conveying equipment

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 40%, 50%, 60%, 70%, and 80% of the normal flow rate, start the injection device 5 and blade 4 (start the nozzle of the blade at the same time), and the nozzle of the injection device will inject gas upwards , the angle between the nozzle and the horizontal is 35°, wherein the nozzle on the blade sprays gas downwards, the angle between the nozzle and the horizontal is 75°, and when the flow returns to 95% of the normal flow, the injection device 5 and the blade 4 are closed (while closing the nozzle of the blade ), calculate the energy consumption of anti-blocking equipment for transporting 10kg of material. Taking 40% energy consumption as 1, calculate other energy consumption, see Table 2.

[0033]

[0034] As can be seen from the table, 70% startup has the lowest energy consumption.

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Abstract

Powder conveying equipment comprises at least one conical hopper, wherein the conical hopper comprises an upper material feeding section and a lower material discharging section; the lower material discharging section is provided with spray equipment and vanes; the spray equipment is arranged under the vanes; a spray nozzle of the spray equipment sprays air to the inner wall of the lower material discharging section; and the vanes are connected with a rotary shaft and rotate through the rotary shaft. The equipment improves the anti-blocking efficiency and reduces the 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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IPC IPC(8): B65D88/68B65D88/70
Inventor 程晓堂
Owner 山东平原驰神节能设备有限公司