Large-particle-size earth material oversize stone removal device
A rejection device and large particle size technology, applied in the direction of solid separation, filter screen, grille, etc., can solve the problems of large labor demand, difficulty in ensuring the quality of soil materials, difficulty in controlling the quality of oversized stone removal, etc., to achieve High economic benefit, fast and convenient installation and debugging, and the effect of improving the efficiency of rejection
Active Publication Date: 2014-11-12
SINOHYDRO BUREAU 5
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Problems solved by technology
Usually, manual sorting and gravity sorting are used to remove super-diameter stones. The demand for labor is large, and the quality of super-diameter stone removal is not easy to control. Gravity sorting is used to remove super-diameter stones, and the aggregate is easy to separate. Soil quality is not easy to guarantee
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[0011] In order to meet the comprehensive requirements for oversize removal of soil materials, it is impossible to directly learn from the existing oversize stone removal experience. It is necessary to study a special removal process for specific engineering characteristics and build a large-scale fixed oversize stone removal system. The present invention is discussed by taking Tangba Project as an example, and the specific scheme research and design process includes scale design, system layout, site selection and layout, screening building layout and screening building structure.
[0012] 1. Scale design
[0013] (1) Calculation parameters
[0014] Filling strength: the average filling strength of gravel soil during the peak period is 210,000 m3 / month (compacted square);
[0015] Filling dry density: take the maximum value of 2.14g / cm3 according to the technical requirements of soil filling;
[0016] The average moisture content of the soil material: take 10%;
[0017] Unb...
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The invention discloses a large-particle-size earth material oversize stone removal device which comprises a bar-type vibration feeder and a screening building. The screening building is divided into three layers which are the receiving layer, the equipment layer and the discharging layer from top to bottom. A receiving hopper is arranged inside the receiving layer. An upper discharging opening is formed in the lower end of the receiving hopper. The equipment layer is provided with the bar-type vibration feeder. The feeding end of the bar-type vibration feeder is right opposite to the upper discharging opening. A lower discharging opening is formed in the equipment layer. The lower discharging opening is right opposite to a discharging opening of the bar-type feeder. The discharging layer is internally provided with a discharging bin. The discharging bin is located under the lower discharging opening. According to the large-particle-size earth material oversize stone removal device, the removal efficiency of large-particle-size earth material oversize stone is remarkably improved, and meanwhile the good removal quality is ensured; the structure is quite stable and reliable, and installation and debugging are rapid and convenient; the maximum earth material particle size can be controlled within the allowed range, and grinding is compact, so that the high compaction degree and the good seepage-proofing effect are obtained, practicability is high, and economic benefits are high.
Description
technical field [0001] The invention relates to the field of soil material processing, in particular to a large-diameter soil material super-diameter rock removal device. Background technique [0002] With the development of earth-rock dam construction technology, the earth-rock dam projects under construction and design and planning are becoming large-scale and gigantic. For example, the Nuozhadu earth-rock dam project has been built, with a dam height of 261.5m and a total filling volume of 33.5 million m3. The main dam of the Changheba Hydropower Station under construction is also an earth-rock dam project, with a height of 240m and a total filling volume of 34.3606 million m3. The scale of new earth-rock dam projects will be larger in the future, such as Lianghekou, with a dam height of 298m and Shuangjiangkou dam as high as 305m, and its filling volume is larger. In the dam-building materials of high earth-rock dam projects, the anti-seepage body of the core wall gener...
Claims
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IPC IPC(8): B07B1/28B07B1/46
Inventor 薛凯任俊友田中涛高倩莹熊亮樊鹏
Owner SINOHYDRO BUREAU 5