Production system and production method of machine-made gravels

A technology of production system and production method, which is applied in the field of construction machinery, can solve the problems of poor aggregate particle shape and high demand for machine-made sand and gravel, and achieve the effect of improving quality and increasing output

Inactive Publication Date: 2015-02-25
XUZHOU XCMG CONSTR MACHINERY CO LTD BUILDING MACHINERY
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Problems solved by technology

However, in the actual application process, it is found that the amount of machine-made sandstone obtai

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  • Production system and production method of machine-made gravels
  • Production system and production method of machine-made gravels
  • Production system and production method of machine-made gravels

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Embodiment Construction

[0038] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0039] In the process of practical application, the inventor noticed that the quality of the finished sand and gravel produced by the mechanism-made sand and gravel production system of the prior art is not good, mainly reflected in the poor grain shape of the aggregate, and many grain sizes do not meet the requirements, so it is unqualified This is mainly because there are more needle flake particles in the aggregate after coarse crushing, medium crushing and sand making machine crushing. Too many needle flake particles will make the workability of concrete worse and the strength Reduced; moreover, the existing system produces more sand and gravel in a certain particle size range, which has a certain deviation from the particle size range with larger demand. Even if cyclic crushing is carried out, the particle size an...

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Abstract

The invention relates to a production system and a production method of machine-made gravels. The production system comprises a feed hopper, a feeding machine, an early crushing system and a medium crushing system, wherein the feed hopper is used for delivering an aggregate into the feeding machine; the early crushing system is used for early crushing the aggregate; the medium crushing system is used for crushing the aggregate again; a gravel making machine for further crushing the aggregate is arranged behind the medium crushing system; a first screen is arranged behind the gravel making machine and is used for outputting the aggregate meeting a first particle size section; the aggregate not meeting the first particle size section is shaped by a gradation adjustment system and then returned to the gravel making machine; and all modules are connected with one another by virtue of an aggregate conveying system. By adopting the production system and the production method of the machine-made gravels, the output of the machine-made gravels meeting a required fineness modulus can be improved by controlling reasonable gradation, and the quality of the machine-made gravels is improved by reducing the content of flat and elongated particles by the gravel making machine.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a machine-made sandstone production system and production method. Background technique [0002] In the process of concrete mixing, it is necessary to add granular loose materials that act as a skeleton or filling, called aggregates, which are divided into coarse aggregates and fine aggregates. and fly ash etc. In some areas rich in river sand, natural river sand is used as aggregate, but river sand resources are limited after all, resources are getting less and less, and the price is high. For environmental protection, many local governments have restricted the mining of river sand. Therefore, a method of directly using jaw crushers to produce aggregates has appeared on the market. Although it breaks through the constraints of natural conditions, the aggregates obtained by this method have poor particle shape, unstable gradation, and large powder content. The water content ...

Claims

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Application Information

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IPC IPC(8): C04B14/06
Inventor 郑永生孟艳伟吴飞金鑫齐灰灰左辉辉
Owner XUZHOU XCMG CONSTR MACHINERY CO LTD BUILDING MACHINERY
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