Control system and method for fixed mold table intelligent maintenance unit

Abstract

The invention relates to the technical field of concrete prefabricated slab production and provides a control system and method for a fixed mold table intelligent maintenance unit. The control systemcomprises a maintenance unit, a PLC, a human-computer interaction interface and signal acquisition equipment. The maintenance unit comprises softened water equipment, an electromagnetic boiler, a circulating water pump, a heating pipe, a steam generator and an exhaust hose. According to the control system, heating and humidification are controlled in a separated manner, and the temperature, humidity and temperature rise and fall rates are precisely controlled; the time is strictly controlled, the phenomenon that the surface has cracks due to severe temperature change can be prevented, and theproduct quality is guaranteed; electric equipment is adopted, no harmful gas such as nitrogen gas and oxide gas is generated in the process, and quite high environmental protection performance is achieved; an almost closed heating pipe system is adopted, water consumption caused by heating is little, and only a certain amount of water is consumed in the product humidifying process; and the final condensate water is collected and can be utilized cyclically, and water resources can be effectively saved.

Description

technical field [0001] The invention relates to the technical field of concrete prefabricated slab production, in particular to a control system and method for an intelligent maintenance unit of a fixed formwork platform. Background technique [0002] Prefabricated building planning has been intensively introduced since 2015, and it has been fully promoted across the country and has made breakthrough progress. A large number of prefabricated buildings are rising rapidly, and the demand for concrete prefabricated panels is also increasing day by day. The quality of the prefabricated concrete slab determines the service life of the prefabricated building, which puts forward higher requirements for the maintenance of the prefabricated concrete slab. [0003] Steam curing is an important means of curing traditional concrete precast panels, but there are also some problems. The ambient temperature in winter is low. In the pre-curing (also called static stop) stage before the co...

AI Technical Summary

Problems solved by technology

The ambient temperature in winter is low. In the pre-curing (also called static stop) stage before the concrete precast slabs have initially set, in order to create a suitable temperature, steam is directly passed into the curing room to heat up, and a large amount of hot steam is cooled. Rapid condensation, dripping on the concrete prefabricated slab will cause unevenness on the surface and affect the flatness

In addition, the temperature of the prefabricated concrete slab itself is relatively low. If it suddenly comes into contact with a large area of ​​hot steam, it is easy to cause surface cracking and affect the quality of the product.

[0004] If the production scale of concrete prefabricated slabs is large, the traditional steam curing method will generally consider building a boiler room, which is not a small expense

Secondly, coal-fired boiler rooms also emit harmful gases such as carbon dioxide and sulfur dioxide, which seriously pollute the environment

Thirdly, if the boiler room is far away from the workshop where the prefabricated concrete panels are produced, some heat will be lost during steam transportation, resulting in energy waste

Finally, in the production process, if the operator cannot accurately control the curing temperature, humidity and heating / cooling rate of the precast concrete slab, the quality of the product will not be guaranteed.

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