Sludge thermal drying dry silo safety control system

A technology of safety control and dry silo, applied in the direction of comprehensive factory control, comprehensive factory control, electrical program control, etc., can solve the problems of difficult guarantee of safety and reliability, and achieve complete monitoring data, perfect system structure and easy operation Effect

Active Publication Date: 2015-08-26
BEIJING DRAINAGE EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But most of these existing technical measures are relatively simple, and it is difficult to guarantee safety and reliability.

Method used

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  • Sludge thermal drying dry silo safety control system

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. Embodiment: Referring to the figure, the safety control system for sludge thermal drying dry silo is characterized in that: an online instrument group 1 is provided, and the online instrument group includes: an online temperature sensor, an online pressure transmitter, an online oxygen content probe, An online carbon monoxide detection probe, a guided wave radar level gauge for measuring the height of the material level in the dry silo, and an online material level switch. There are 4 temperature sensors, which are evenly distributed on the side wall of the dry silo, and the height of each probe is 5 meters apart. The number of temperature sensors can be added or subtracted according to user needs and the size of the dry silo; there is a PLC control unit 2, which is equipped with an online The processing circuit module of the detection data of the instr...

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Abstract

The invention discloses a safety control device and a control method for a sludge heat drying dry-material storehouse. The safety control system is provided with an on-line meter unit which comprises an on-line temperature sensor, an on-line pressure transmitter, an on-line oxygen content probe, an on-line carbon monoxide detection probe, a guide wave radar level meter used for metering the material level of the dry-material storehouse and an on-line material level switch. A nitrogen pipeline and an automatic control valve are further arranged in the dry-material storehouse. A programmable logic controller (PLC) control unit and an upper computer controller are further arranged in the safety control system. The safety control method includes micro-positive pressure inert environment controlling, smoldering early warning controlling, material level controlling and alarm operating. The safety control device and the control method for the sludge heat drying dry-material storehouse is suitable for safety controlling of a sludge dry-material storehouse, a system structure is perfect, monitoring data are comprehensive, monitoring is accurate and reliable. The safety control device and the control method for the sludge heat drying dry-material storehouse has the advantages of being high in automatic degree, convenient to operate, low in operating cost and suitable for remote monitoring, and can be incorporated in overall monitoring management of a plant area conveniently.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment equipment, in particular to a safety control system for sludge heat-drying dry material warehouse, which is used for the safety control of the sludge heat-drying dry material warehouse, Background technique [0002] In the subsequent disposal process of wet sludge, the wet sludge with a moisture content of 80% is usually dried to a moisture content of 20% or even 5% by thermal drying for the purpose of reduction, harmlessness and resource utilization. Dry granules below. Storing the sludge dry granular products in the dry silo is the last link of the wet sludge drying production line. Dry particles with too low moisture content have a high dust concentration, and are prone to smoldering during storage. At the same time, there is also a safety hazard of explosion. If not handled properly, it will cause greater safety accidents and property losses. In response to this problem, the existin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 张荣兵陆学兴程庆李童
Owner BEIJING DRAINAGE EQUIP
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