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A screening device, sand and gravel technology, applied in the direction of filter screen, solid separation, grille, etc., can solve the problems of low sand and gravel screening work efficiency, difficult to meet production and life, etc., to improve work efficiency and effect, simple structure, easy to use convenient effect
Inactive Publication Date: 2018-09-04
宁夏中科天际防雷研究院有限公司
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Problems solved by technology
It has different effects on sand and gravel of different sizes. The existing sand and gravel screening work is inefficient and difficult to meet the needs of increasingly prosperous production and life.
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[0017] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.
[0018] see Figure 1-3 , a construction gravel screening device, comprising a sand inlet pipe 2, a screening box 3, a feeding plate 4, a water tank 6, a spray row 7, a return pipe 8, a filter screen 10, a jet machine 11, an air pipe 12, an air jet row 13, The first sieve plate 14, the coarse sand discharge pipe 15, the fine sand discharge pipe 16, the second sieve plate 17, the vibrator 18, the partition plate 19 and the sewage pipe 21, the top of the screening box 3 is provided with an inlet The sand pipe 2 and the sand inlet pipe 2 are provided with a grid 1 inclined inside. The grid 1 stops the garbage and branches in the sand to facilitate the subsequent screening of sand and gravel and improve work efficiency and effect. The side of the feeding plate 4 is connected with the screening The inner wall of the top of the box 3 is hinged, and a cam...
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Abstract
The invention discloses a building gravel screening device. The building gravel screening device comprises a sand inlet pipe, a screening box, a charging plate, a water tank, a spraying row, a filternet, an air injection machine, a ventilation pipe, an air injection row, a first sieve plate, a second sieve plate, vibration exciters, a partition plate and a blow-off pipe. The sand inlet pipe is arranged at the top end of the screening box, one side of the charging plate is hinged to the inner wall of the top end of the screening box, the water tank is arranged at the top end of the screening box, the water inlet pipe is arranged at the top end of the water tank, and the bottom end of the water tank is connected with a sprayer through a water passing pipe. The first sieve plate and the second sieve plate are obliquely arranged in the screening box, and the vibration exciters are arranged on the lower surface of the first sieve plate and the lower surface of the second sieve box. According to the building gravel screening device, gravel screening is convenient, water flows back into the water tank to be continuously circularly used, the resource is saved, waste is avoided, the structure is simple, usage is convenient, and popularization is facilitated.
Description
technical field [0001] The invention relates to the construction field, in particular to a construction sand and gravel screening device. Background technique [0002] Because of its good hardness and stable chemical properties, sand and gravel are often used as high-quality building materials and concrete raw materials and are widely used in housing, roads, highways, railways, engineering and other fields. With the requirements of infrastructure construction technology and the development of high technology, there are higher requirements for the quantity and quality of sand and gravel. Sand and gravel are loose materials, but their particles are generally hard and chemically stable in the surface environment. For sandstone, its weathering resistance is generally strong, especially the silicified quartz sandstone, whose hardness exceeds that of granite. Sand and gravel are the basic materials in national economic construction, mainly used in foundation engineering, concret...
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Application Information
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