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Centrifugal sand screening device

A centrifugal sand screening technology, which is applied in the direction of screening, solid separation, grille, etc., can solve the problems of reducing screening efficiency, waste of sand material, and crushing of sand blocks, so as to improve screening efficiency, increase screening rate, and improve efficiency Effect

Active Publication Date: 2018-02-02
QINGDAO HAIDE ROAD & BRIDGE ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Sand screening machine is a common construction machine. By screening sand materials, fine sand that meets the requirements of building particle size is screened out; traditional sand screening machines are mostly vibrating screen plate sand screening machines and rotary drum sand screening machines. Most of the sand screening machines are of horizontal structure and occupy a large area; in addition, the screening efficiency of traditional sand screening machines is low, and there are often wet and hardened sand blocks in the sand material, and the screen mesh cannot break the sand blocks well, resulting in sand The waste of material, and the sieve holes of the screen are prone to clogging, which further reduces the efficiency of screening

Method used

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] see Figure 1~3 , in an embodiment of the present invention, a centrifugal sand screening device includes a housing 1 and a frequency conversion motor 4; the top of the housing 1 is connected with a feed pipe 2, and a rotating shaft 3 is arranged inside the feed pipe 2, and the rotating The shaft 3 extends to the top of the feeding pipe 2 and is connected with a variable frequency motor 4, which is fixedly connected to the top of the feeding pipe 2; the...

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Abstract

The invention discloses a centrifugal sand screening device. The device comprises a shell, the top of the shell communicates with a feeding pipe, a rotating shaft is arranged in the feeding pipe, andthe part, located in the feeding pipe, of the rotating shaft is fixedly connected with a spiral blade; and a crushing cutter is fixedly connected to the position, located below the spiral blade, of the rotating shaft, and a conical sieve is arranged below the crushing cutter. According to the device, the spiral blade and a variable-frequency motor are arranged so that the feeding speed can be controlled, and the sand sieving effect can be guaranteed; the conical sieve and crushing teeth arranged on the conical sieve are arranged, the separation speed of large-mass waste residues such as stonescan be increased under the action of centrifugal force, and the screening efficiency can be improved; sand blocks are crushed through the rotating crushing teeth so that the waste of sand materials can be avoided; an annular sieve which moves up and down is arranged to carry out secondary sieving on the waste residues, and residual fine sand can be recycled; and a spiral discharging roller whichis in linkage with the rotating shaft is arranged so that synchronous discharging can be realized, discharging can be thorough, and the efficiency of sand sieving operation can be improved.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a centrifugal sand screening device. Background technique [0002] The sand sieving machine imitates the working principle of artificially using the inclined screen to screen sand. It adopts a flat rolling screen cylinder and ensures that the material flow can be continuously rolled for more than five circles between the multi-turn inner spiral blades in the screen cylinder, so that the sand material can be repeatedly screened. Rolling and sliding to fully discrete and separate; different from the pushing and burying of large and small materials caused by inclined roller sieves, the screening process is rushed; it is also different from the vibration and mixing of large and small materials caused by inclined vibrating screens; Vibrating sieve plate sand sieving machine. [0003] Sand screening machine is a common construction machine. By screening sand materials, fine sand ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07B1/06B07B1/28B07B1/42B07B1/46B02C18/10
CPCB02C18/10B07B1/06B07B1/28B07B1/42B07B1/4609B07B2201/04
Inventor 杜鑫
Owner QINGDAO HAIDE ROAD & BRIDGE ENG
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