Gravel screening device
A screening device, sand and gravel technology, applied in the direction of filter screen, solid separation, grid, etc., can solve the problems of high cost, complex structure, time-consuming and labor-intensive, etc.
Active Publication Date: 2019-05-10
CHINA METALLURGICAL CONSTR ENG GRP
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Problems solved by technology
The process mainly has the following problems in the construction process: due to the uneven particle size distribution of raw materials, it is easy to produce cavities, which cannot be absolutely dense, resulting in a decline in construction quality, and prone to subsidence in the later period, especially in areas with abundant groundwater.
[0004]
Among the existing equipment, there is equipment for screening and classifying raw materials according to particle size, but the equipment has complex structure, high cost, high cost of use, and is not convenient to use
If the raw materials are manually screened and sorted by particle size, it is time-consuming and labor-intensive
Method used
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Embodiment Construction
[0046] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0047] During specific implementation: if Figure 1 to Figure 5 As shown, the sand and gravel screening device includes a frame body 1 with a rectangular body structure as a whole, and the frame body includes one or more frame body units 2 with a rectangular body structure as a whole; the frame body unit 2 is in the vertical direction. Layered arrangement and the opposite end faces are connected; each frame unit 2 is provided with a screen 3 with a flat plate structure as a whole, and the apertures of each screen 3 in the vertical downward direction are successively reduced; and each screen 3 They are all inclined downwards, and the side of the frame unit 2 opposite to the lower end of the screen is open to form a gravel outlet, which is used to connect with the entrance of the sand and gravel storage device.
[0048] In this way, when the above-mentioned gr...
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The invention discloses a gravel screening device. The gravel screening device comprises a frame body which is in an overall rectangular body structure, and is characterized by comprising one or moreframe body units with the overall rectangular body structure; the frame body units are arranged in a stacked mode in the vertical direction and the opposite end faces are connected; a screen with a flat plate-shaped structure is arranged in each frame body unit, and the hole diameter of each screen in the vertical downward direction is arranged in a sequentially reducing mode; all the screens areobliquely arranged downwards, the side faces, opposite to the lower ends of the screens, of the frame body units are of an open structure so as to form a gravel outlet, and the gravel outlet is used for being connected with an inlet of a gravel containing device. The gravel screening device has the advantages of being simple in structure, convenient to use and low in use cost.
Description
technical field [0001] The invention belongs to the technical field of construction machinery and equipment, in particular to a sand and gravel screening device. Background technique [0002] soft foundation treatment Soft ground treatment , if the foundation is not strong enough before construction, in order to prevent accidents such as building instability caused by subsidence and cracking of the foundation after construction, it is necessary to treat the soft foundation to make the settlement strong enough to improve the consolidation and stability of the soft foundation The process of meeting the requirements of the design. [0003] Among them, riprapping is to throw a certain amount of crushed stones from the middle to both sides of the road base to squeeze the silt out of the road bed to improve the strength of the road bed. The crushed stones used should be large stones that are not easy to weather, and the size is generally not less than 0.15m. The process mainly ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B07B1/28B07B1/42B07B1/46
Inventor 王富平王贵宾王凯乐铁玉林
Owner CHINA METALLURGICAL CONSTR ENG GRP