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Full-grading pre-cooled concrete production device and method

A production device and production method technology, applied in the field of full-graded pre-cooled concrete production devices, can solve the problems of difficulty in reducing the temperature of fine aggregate, high outlet temperature of secondary distribution, and limited scope of application, etc.

Pending Publication Date: 2020-01-24
CHANGJIANG SURVEY PLANNING DESIGN & RES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the ambient temperature is higher than 20°C, the temperature of the fine aggregate (sand) is difficult to reduce, resulting in a high temperature at the outlet of the secondary mix; in addition, the special cooling system for fine aggregate does not consider the primary mix concrete, Therefore, the scope of application is also very limited

Method used

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  • Full-grading pre-cooled concrete production device and method
  • Full-grading pre-cooled concrete production device and method

Examples

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Embodiment 1

[0032] The full-grade pre-cooled concrete production device A includes a coarse aggregate tank 100, a fine aggregate tank 200, a coarse aggregate cooling device 300, a fine aggregate cooling device 400, and a concrete mixing plant 500. The coarse aggregate cooling equipment 300 is composed of a double-layer screen 301 and a first air-cooled aggregate bin 302. After the coarse aggregate is added to the coarse aggregate tank 100, it is first transported to the double-layer screen 301 by a belt conveyor. After the secondary screening, it is transported to the first air-cooled aggregate bin 302 by a belt conveyor for primary air-cooling. The fine aggregate cooling equipment 400 is installed within the range of the concrete mixing plant 500 with a peripheral radius not greater than 50 m. The fine aggregate cooling equipment 400 is composed of a water chiller 401, a pre-cooling sand tank 402, a mechanical vibrating screen 403 and a second air-cooled aggregate bin 404. After the fine ...

Embodiment 2

[0044] Full-grade pre-cooled concrete production device B includes coarse aggregate tank 100, fine aggregate tank 200, coarse aggregate cooling equipment 300, fine aggregate cooling equipment 400 and concrete mixing plant 500. The coarse aggregate cooling equipment 300 is composed of a double-layer screen 301 and a first air-cooled aggregate bin 302. After the coarse aggregate is added to the coarse aggregate tank 100, it is first transported to the double-layer screen 301 by a belt conveyor. After the secondary screening, it is transported to the first air-cooled aggregate bin 302 by a belt conveyor for primary air-cooling. The fine aggregate cooling equipment 400 is installed within the range of the concrete mixing plant 500 with a peripheral radius not greater than 50 m. The fine aggregate cooling equipment 400 is composed of a water chiller 401, a pre-cooled sand tank 402, a cold sand tank 405, and a dewatering screen 406. After the fine aggregate is added to the fine aggre...

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Abstract

The invention relates to a full-grading pre-cooled concrete production device and method. The device comprises a coarse aggregate tank, a fine aggregate tank, coarse aggregate cooling equipment, fineaggregate cooling equipment and a concrete mixing plant. By means of the device, the temperature of a concrete outlet of each grade of concrete can be reduced to the ideal temperature.

Description

Technical field [0001] The invention belongs to the technical field of concrete for water conservancy projects, and specifically relates to a production device and a production method for full-graded pre-cooled concrete. Background technique [0002] The concrete production device is an essential facility in the production of pre-cooled concrete. The pre-cooling of concrete is mainly realized by cooling one or more of the concrete materials in the operation line of the concrete production device. In water conservancy projects, mass concrete is widely used. For mass concrete, temperature stress is a very important load. In order to prevent temperature cracks and ensure the safe operation of water conservancy projects, the temperature change of concrete must be controlled , Pre-cooled concrete is a very effective control method. The concrete production device reduces the concrete production temperature (exit temperature) when producing pre-cooled concrete, thereby controlling the ...

Claims

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Application Information

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IPC IPC(8): B28C7/00B28C7/06B28C9/02
CPCB28C7/0038B28C7/06B28C9/02
Inventor 卞小草帅小根李方平刘盟盟雷畅查麟吴楠肖俊肖彦于真真郑强周剑
Owner CHANGJIANG SURVEY PLANNING DESIGN & RES
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