A power plant energy-saving ash conveying system and method

An ash conveying and power plant technology, applied in conveyors, transportation and packaging, conveying bulk materials, etc., can solve the problems of waste of resources, large demand for compressed air, irregular time, etc., to save resources and facilitate the control of the operating state of the unit Effect

Active Publication Date: 2020-05-22
南京宏唐控制工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the delivery time of the warehouse pumps is not fixed, there will be four, five or even more warehouse pumps carrying ash at the same time during the operation, and the demand for compressed air is relatively large; There is no bin pump or only one bin pump is conveying ash, resulting in excess compressed air
Both situations will lead to waste of resources, and this problem needs to be solved

Method used

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  • A power plant energy-saving ash conveying system and method
  • A power plant energy-saving ash conveying system and method
  • A power plant energy-saving ash conveying system and method

Examples

Experimental program
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Embodiment 1

[0046] An energy-saving ash conveying system for a power plant, referring to figure 1 , The power plant includes an ash storehouse and multiple ash hoppers, the ash hoppers correspond to the dust collectors of the power plant, and the ash storeroom is used to store dry ash. The energy-saving ash conveying system includes a controller and multiple units, and the controller is PLC. Each unit is correspondingly connected to each ash hopper for transporting dry ash to the ash storage. The controller is connected with each unit for controlling the operation of each unit. When the number of units that are conveying ash is not less than the set number, the controller will control other units to suspend work and queue up sequentially. When the number of running units is less than the set number, the controller will control the units at the front of the queue to convey ash.

[0047] refer to figure 1 , the controller includes a register and a comparison module, the number of runnin...

Embodiment 2

[0053] A kind of power plant energy-saving ash conveying method based on the power plant energy-saving ash conveying system in embodiment 1, refer to figure 2 and image 3 , every time the warehouse pump transports a group of dry ash is a working cycle, and each working cycle includes the following stages:

[0054] In the feeding stage, the controller controls the opening of the balance valve and the feed valve, and the dry ash in the corresponding ash hopper falls freely into the bin pump under the action of gravity; when the opening time of the balance valve and the feed valve reaches the preset opening time T1 , the controller controls the balance valve and the feeding valve to close, the feeding stage ends and enters the queuing stage;

[0055] In the queuing stage, the number of bin pumps that are transporting dry ash is judged. When the register (refer to figure 1 ) recorded in the number of bin pumps that are transporting dry ash is not less than the comparison modu...

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Abstract

The invention discloses a power plant energy-saving ash conveying system and method, belongs to the technical field of material conveying and aims to solve the problem that the existing pneumatic ashconveying system causes resource waste. The power plant energy-saving ash conveying system is characterized in that all units are correspondingly connected to all ash hoppers and are used for conveying dried ash to an ash warehouse; a controller is connected with the units to control operation of the units; when the number of the on-going units is no less than the set number, the controller controls other units for suspension of work and to queue in sequence; and when the number of the on-going units is less than the set number, the controller controls the units queued in front to convey ash.The power plant energy-saving ash conveying system has the advantage of facilitating resource saving.

Description

technical field [0001] The invention relates to the technical field of material conveying, more specifically, it relates to an energy-saving ash conveying system and method for a power plant. Background technique [0002] The dry ash produced by the power plant is usually discharged from the ash hopper of the dust collector to the warehouse pump, and then the dry ash is transported to the ash storage by the warehouse pump. The operation process of the warehouse pump for conveying ash is: feeding, waiting for gas, air intake, conveying, purging, waiting, and the next cycle. The length of the conveying process is determined by the pressure in the conveying pipe. When the pressure in the conveying pipe is less than a certain Set the value, judge that there is no ash in the tube, and the conveying ends. All warehouse pumps are automatically cycled, and the delivery time is not fixed. [0003] The Chinese patent with the existing publication number CN103241550A discloses a pneu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65G53/66B65G53/16B65G53/34B65G53/36B65G53/46
CPCB65G53/16B65G53/34B65G53/36B65G53/46B65G53/66
Inventor 周林恺舒佳林唐建毛
Owner 南京宏唐控制工程有限公司
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