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Integrated device for preparing recycled cement paste powder by using waste premixed concrete

A technology for ready-mixed concrete and reclaimed water, applied in cement production, solid separation, chemical instruments and methods, etc., can solve the problems of lack of integrated industrial processing and preparation devices, reduce the problem of increasing shortage of limestone resources, increase fineness, reduce The effect of carbon emissions

Pending Publication Date: 2021-07-20
浙江永坚新材料科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, for the reuse of waste ready-mixed concrete components, especially the reuse of cement slurry components, there is a lack of integrated industrial processing and preparation equipment

Method used

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  • Integrated device for preparing recycled cement paste powder by using waste premixed concrete
  • Integrated device for preparing recycled cement paste powder by using waste premixed concrete
  • Integrated device for preparing recycled cement paste powder by using waste premixed concrete

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings.

[0039] refer to Figure 1 to Figure 11 , an integrated device for preparing recycled cement slurry powder by using waste ready-mixed concrete, comprising a separation device 1, a filter press device 2, an air-drying device 3, a first conveying device 4, a crushing device 5, a ball milling device 6, Screening device 7 , second conveying device 8 , third conveying device 9 and calcining device 10 .

[0040] Such as figure 2 As shown, the separation device 1 is composed of a first material inlet 101 , a sand separator 104 , and a sedimentation tank 108 , which are connected by a second pipeline 103 and a third pipeline 107 . Below the first material inlet 101 is a separation base 102; the front part of the sand separation system 104 is provided with a stone outlet 105 and a sand outlet 106; Pump 110.

[0041] Such as image 3 As shown, the filter press device 2 is p...

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Abstract

An integrated device for preparing recycled cement paste powder from waste premixed concrete is characterized in that an inlet of a separation device is connected with a first feed port for feeding the waste premixed concrete, and an outlet of a conveying pipeline of the separation device is connected with an inlet of a filter pressing device. A lower outlet of the filter pressing device is located above a second feeding port in the uppermost portion of the air drying device, a second discharging port of the air drying device is connected with an inlet of a first conveying device, an outlet of the first conveying device is connected with an inlet of a crushing device, and an outlet of the crushing device is connected with a third feeding port of a ball milling device. A third discharging port of the ball milling device is connected with an inlet of a screening device, the screening device is provided with a coarse material outlet and a fine material outlet, the coarse material outlet is connected with a third feeding port of the ball milling device through a second conveying device, the fine material outlet is connected with a fourth feeding port of the calcining device through a third conveying device, and an outlet of the calcining device is connected with a collecting box. According to the invention, integrated and industrial production of the regenerated cement paste powder is realized.

Description

technical field [0001] The invention belongs to the field of building materials and relates to a device for preparing recycled cement slurry powder by using waste ready-mixed concrete. Background technique [0002] At present, the world produces 2.8 billion cubic meters of concrete every year, and China alone accounts for half of the output. At the same time, due to urbanization and infrastructure construction, the amount of waste concrete is increasing day by day. In 2020, only China's waste concrete discharge will reach 638 million tons. Waste hardened cement or mortar accounts for approximately 30% of waste concrete and is considered a low-value and difficult-to-utilize component that is often disposed of in landfills. [0003] The mud cake formed by the waste ready-mixed concrete in the commercial concrete mixing plant or mixer truck after separation and pressure filtration has a high moisture content and low activity, so it is difficult to be directly used as a cementi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/24C04B7/38C04B7/43B02C1/04B02C23/16B07B1/22
CPCC04B7/246C04B7/38C04B7/43B02C1/04B02C23/16B07B1/22Y02P40/10
Inventor 高越青梁超锋陆俊李静王建苗董金虎张彧铭
Owner 浙江永坚新材料科技股份有限公司
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