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A method and system for pneumatically conveying ash, and a storage medium

A technology of pneumatic ash conveying and storage medium, which is applied in the direction of transportation and packaging, conveyors, and conveying bulk materials. sexual effect

Active Publication Date: 2021-03-30
白志刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a certain hysteresis when starting ash transportation according to the high material level alarm of the ash hopper
At the same time, each ash conveying unit is locked and waits for each other, which will cause the ash in the ash hopper to not be conveyed away in time.
A large amount of ash accumulated in the ash hopper may cause the ash hopper to collapse

Method used

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  • A method and system for pneumatically conveying ash, and a storage medium
  • A method and system for pneumatically conveying ash, and a storage medium
  • A method and system for pneumatically conveying ash, and a storage medium

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0027] see figure 1 , figure 1 It is a schematic flow chart of a pneumatic ash conveying method provided by an embodiment of the present invention.

[0028] Such as figure 1 As shown, the method includes:

[0029] The material level of the first ash conveying unit is monitored to obtain the material level value.

[0030] Among them, the first ash conveying unit corresponds to the dust removal unit with the largest dust removal capacity.

[0031] The monitoring of the material level of the first ash conveying unit may be performed according to a preset time interval. For example: monitor the material level of the first ash conveying unit every 0.1 seconds to obtain the material level value.

[0032] Of course, it is also possible to monitor the material level of the first ash conveying unit in real time.

[0033] Moreover, there are many ways of monitoring, specifically: monitoring through sensors.

[0034] When the material level value is less than the first threshold, ...

no. 2 example

[0042] This embodiment is based on the first embodiment. In this embodiment, the first ash conveying manner is specifically limited. specifically:

[0043] The ash is transported sequentially according to the sequence rules of the ash transporting unit in the first electric field, the ash transporting unit in the second electric field and the bag ash transporting unit.

[0044] Preferably, the ash conveying frequency of the ash conveying unit in the first electric field is higher than that of the ash conveying unit and the bag ash conveying unit in the second electric field. Such as:

[0045] The ash conveying unit in the first electric field ash conveying-the ash conveying unit in the first electric field ash conveying-the ash conveying unit in the second electric field ash conveying-the bag ash conveying unit ash conveying. That is, after the ash conveying unit in the first electric field conveys the ash twice, then the ash conveying unit in the second electric field conv...

no. 3 example

[0048] This embodiment is based on the second embodiment. In this embodiment, the ash conveying unit in an electric field is specifically limited. specifically:

[0049] Alternately convey ash through the ash conveying unit in column A and the ash conveying unit in column B in an electric field.

[0050] Wherein, the ash conveying unit in row A and the ash conveying unit in row B both include at least one ash conveying unit.

[0051] For example, when there are two gray conveying units in column A and column B, and they are respectively A1, A2, B1, and B2 in sequence, then: gray conveying unit A1—ash conveying unit B1 Ash transport-A2 Ash transport unit Ash transport-B2 Ash transport unit.

[0052] According to the ash conveying unit ash conveying in the first electric field, the ash conveying unit ash conveying in the second electric field, and the ash conveying unit bag ash conveying order, the ash conveying is carried out in sequence: A1 ash conveying unit ash conveying-...

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Abstract

The invention relates to a pneumatic ash conveying method and system and a storage medium. The method comprises the steps that a material level of a first ash conveying unit is monitored to obtain a material level value; when the material level value is smaller than a first threshold value, a first ash conveying mode is adopted for conveying ash; or when the material level value is greater than asecond threshold value, a second ash conveying mode is adopted for conveying ash. According to the technical scheme provided by the invention, the material level of the first ash conveying unit whichcorresponds to a dusting unit which is the largest in dusting amount, so that the material level value is obtained; the material level value is compared with the first threshold value and the second threshold value; if the material level value is smaller than the first threshold value, the first ash conveying mode is adopted for ash conveying; if the material level value is greater than the secondthreshold value, the second ash conveying mode is adopted for conveying ash; working load of operation personnel is lowered; the timeliness of ash conveying of the ash conveying system is improved; safety loopholes caused by accumulation of a large amount of ash are avoided; and the technical effect that resources are saved is realized.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of automation control, in particular to a method and system for pneumatic ash conveying, and a storage medium. Background technique [0002] At present, the pneumatic ash conveying system of thermal power plants generally adopts two control methods: [0003] 1. Timing ash conveying control method, its disadvantage is that the operator needs to frequently adjust the ash conveying interval according to the change of unit load and coal quality. Not only does it increase the workload of the operating personnel, but this control method also causes a great waste of compressed air for conveying ash, which increases the operating cost of the thermal power plant. [0004] 2. According to the control mode of ash conveying unit ash hopper high material level alarm interlock start ash conveying, each ash conveying unit is locked and waits for each other, effectively avoiding large fluctuations...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65G53/16B65G53/66
CPCB65G53/16B65G53/66
Inventor 白志刚
Owner 白志刚