Over-ground kiln type steam curing workshop with precast sleeper

Abstract

The invention discloses an over-ground kiln type steam curing workshop with a precast sleeper. The over-ground kiln type steam curing workshop comprises a color steel board room (1), a temperature control system and a transportation system, the temperature control system is arranged in the color steel board room, the transportation system is mounted on the inner side and the outer side of the color steel board room (1) to control entering and exiting of the sleeper (2), the color steel board room (1) comprises a plurality of independent steam curing workshops (3), the temperature control system comprises an electronic temperature measuring probe (5), a steam curing pipeline (6), an induced draught fan (7), an exhausting device (8), a sprayer (9) and a pressurizing water pump device (10), and the transportation system comprises a winch (15), a fixed pulley (16), a mould carriage (17) and a steel rail (18). The over-ground kiln type steam curing workshop is simple in construction technology, the requirements of a mould entering and exiting device of the steam curing workshop are low, four complete steam curing stages can be independently finished, a temperature rise / reduction curve meets temperature control requirements, surface cracks caused by too high temperature rise / reduction rate are effectively decreased, and product quality is ensured.

Description

Technical field [0001] The invention relates to the field of sleeper prefabrication construction technology, in particular to an all-ground kiln-type steam curing workshop for sleeper prefabrication. Background technique [0002] Steam curing of sleepers is a necessary link to ensure the quality of sleepers. Steam curing greatly accelerates the prefabrication of sleepers, increases the turnover rate of molds, and speeds up the progress of the project. At the same time, steam curing technology has greater advantages in temperature control, quality assurance, etc., which minimizes the degree of restraint of sleeper prefabrication by seasons. At present, there are two main types of steam curing workshops that are widely used in China: channel type curing and semi-underground pit type curing. Channel steaming is not easy to ensure that the four steaming stages (quiet stop, heating, constant temperature, and cooling) meet the standard temperature curve. Because channel steaming does ...

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Problems solved by technology

It is not easy to ensure that the four steaming stages (static stop, heating, constant temperature, and cooling) meet the standard temperature curve in the form of channel steaming. Since the channel type steaming does not have strict maintenance temperature zone separation, it cannot meet the temperature rise / The cooling rate is not greater than 15°C / h, or the surface cracks are caused by the rapid heating / cooling rate, or the production efficiency is affected by the slow heating / cooling rate

Although the semi-underground pit steam curing can make up for the defects of the tunnel steam curing process, it needs to dig a curing pit underground and configure a special equipment for picking and placing molds, so the capital investment is relatively large; To put the mould, the worker needs to assist in the pit, and the construction safety cannot be guaranteed

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