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Production system and production method of graded broken stone and washed sand

A technology of graded crushed stone and production system, which is applied in chemical instruments and methods, wet separation, solid separation, etc., can solve problems such as delay in construction period, failure to meet engineering needs, complicated process, etc., and achieve the effect of improving efficiency

Pending Publication Date: 2022-01-28
中建新疆建工集团第三建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the road industry of the Republic of Tajikistan or domestic road pavement projects of grade III and below, the pavement project mainly uses graded crushed stone mixture as the base layer of the pavement structure layer, and the production of the base layer mixture is crushed by a crusher, and the crushed gravel raw materials are crushed. The process of crushing, screening, mixing, and discharge is relatively complicated
[0003] Pavement laying requires graded crushed stone as the base layer, and bridge and culvert engineering concrete requires washed sand, which is used as roadbed filler and concrete production raw material. It is a very important material in road engineering. At this time, it is necessary to set up a complete production of washed sand. Production line, the construction of a new production line needs a cycle, which will delay the construction period. As a road project, there is a large demand for graded gravel and washed sand. The existing production process of graded gravel and washed sand is more, and sometimes it cannot meet the requirements of the project. need

Method used

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  • Production system and production method of graded broken stone and washed sand
  • Production system and production method of graded broken stone and washed sand
  • Production system and production method of graded broken stone and washed sand

Examples

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no. 2 example

[0060] In the step S7, the distance between the blow bars in the impact crusher 5 is adjusted to 12cm, the quality of the raw material is 15356.20g, and the mass of the remaining crushed stone is 14263.20g. The ratio of the graded crushed stones produced at last is shown in Table 2 ,

[0061] Table 2

[0062]

[0063] From the statistics of the results, it can be seen that when the distance between the blow bars is 12cm, the passing rate of the graded crushed stone produced at the end is 98.48% for the crushed stone with a particle size below 37.5mm, which requires a minimum The pass rate is 95%, the maximum pass rate is 100%, the pass rate of gravel with a particle size below 20mm is 73.52%, the required minimum pass rate is 60%, the maximum pass rate is 80%, and the pass rate of gravel with a particle size below 10mm The minimum passing rate is 52.70%, the required minimum passing rate is 40%, the maximum passing rate is 60%, the passing rate of crushed stones with a par...

no. 3 example

[0065] In the step S7, the distance between the blow bars in the impact crusher 5 is adjusted to 15cm, the quality of the raw material is 21365.20g, and the mass of the remaining crushed stone is 20031.40g. The ratio of the graded crushed stone produced at last is shown in Table 3 ,

[0066] table 3

[0067]

[0068] It can be seen from the statistics of the results that when the distance between the blow bars is 15cm, the passing rate of the final graded crushed stone produced at each level is 97.34% for the crushed stone with a particle size below 37.5mm, which requires a minimum The pass rate is 95%, the maximum pass rate is 100%, the pass rate of gravel with a particle size below 20mm is 64.80%, the required minimum pass rate is 60%, the maximum pass rate is 80%, and the pass rate of gravel with a particle size below 10mm 42.60%, the required minimum pass rate is 40%, the maximum pass rate is 60%, the pass rate of crushed stones with a particle size below 5mm is 25.00%...

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Abstract

The invention discloses a production system of graded broken stone and washed sand. The production system comprises a sand washer (3) and an impact crusher (5), a jaw crusher (4) is arranged in front of the impact crusher (5), the jaw crusher (4) and the impact crusher (5) are communicated through a conveying belt, a first-stage vibrating screen (2) communicated through the conveying belt is arranged in front of the jaw crusher (4), a feeding hopper (1) is arranged in front of the first-stage vibrating screen (2), the sand washer (3) is arranged below the first-stage vibrating screen (2), a second-stage vibrating screen (6) communicated with the impact crusher (5) through a conveying belt is arranged behind the impact crusher (5), and the first-stage vibrating screen (2) and the sand washer (3) are connected with a circulating water system (7); and the production system disclosed by the invention can be used for producing washed sand and graded broken stone, and production of two products is completed by using one set of equipment, so that the production process and the production cost are reduced, the laying efficiency is improved, and the construction period is shortened.

Description

technical field [0001] The invention relates to the field of graded crushed stone production, in particular to a production system and production method of graded crushed stone and washed sand. Background technique [0002] In the road industry of the Republic of Tajikistan or domestic road pavement projects of grade III and below, the pavement project mainly uses graded crushed stone mixture as the base layer of the pavement structure layer, and the production of the base layer mixture is crushed by a crusher, and the crushed gravel raw materials are crushed. The process of crushing, sieving, mixing, and exiting is relatively complicated. [0003] Pavement laying requires graded crushed stone as the base layer, and bridge and culvert engineering concrete requires washed sand, which is used as roadbed filler and concrete production raw material. It is a very important material in road engineering. At this time, it is necessary to set up a complete production of washed sand. ...

Claims

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Application Information

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IPC IPC(8): B02C21/00B02C23/02B02C23/08B02C23/10B02C23/12B03B7/00B03B9/00
CPCB02C21/00B02C23/02B02C23/08B02C23/10B02C23/12B03B7/00B03B9/00
Inventor 陈宏达苗阳宋昭林杨秀莲康鹏程张江河边玮涛
Owner 中建新疆建工集团第三建设工程有限公司