Sand screening device for hydraulic engineering construction

Abstract

The invention relates to the technical field of hydraulic engineering construction, in particular to a sand screening device for hydraulic engineering construction. The sand screening device comprises a base and a connecting belt, wherein the right part of the top end of the base is fixedly connected with a frame plate; a motor is mounted at the bottom of the right end of the frame plate; the output shaft end of the motor is fixedly connected with a driving wheel; the upper part of the frame plate is rotationally connected with a supporting pipe; the right end of the supporting pipe is communicated with a feeding pipe; the left end of the supporting pipe is communicated with a reinforcing pipe; the circumferential outer wall of the reinforcing pipe is fixedly connected with a driven wheel; the driven wheel and the driving wheel are connected through the connecting belt; the left end of the reinforcing pipe is fixedly connected with a first filter screen; the first filter screen is cylindrical; the left end of the first filter screen is communicated with a connecting pipe; the left end of the connecting pipe is communicated with a second filter screen; the second filter screen is cylindrical; meshes of the second filter screen are larger than those of the first filter screen; and supporting plates are fixedly connected to the left portion and the right portion of the top end of the base correspondingly. The sand screening device is high in sand screening efficiency, convenient to operate by a user and high in practicability.

Description

technical field [0001] The invention relates to the technical field of water conservancy project construction, in particular to a sand screening device for water conservancy project construction. Background technique [0002] Sand is a commonly used raw material in water conservancy construction. In order to improve the quality of the building, due to the different sizes of the sand particles in the raw materials of the sand, it is necessary to screen the sand to separate the large particles from the small particles. The existing sand screening device, A flat screen is used. During the process of sieving sand, the power device drives the screen to move left and right. The user passes the sand to the screen one by one, and then exposes the sand. In the process of use, the user needs to put the sand Step by step into the screen, and after the sieving, the user needs to shovel the sand at the bottom onto the transport vehicle again. The efficiency of sieving sand is low, it is ...

AI Technical Summary

Problems solved by technology

But in realizing the present invention process, the contriver finds that there are at least the following problems in the prior art and has not been solved: 1. when the sand is screened, the amount of one screening cannot be too large. The large force is not conducive to screening. The second is that the bearing capacity of the screen is limited. If the amount of screening is too large, the screen will be deformed, resulting in inaccuracy of the screen and damage to the screen. Third, although the screen is tilted, However, due to the continuous sand falling from the upper screen, the sand that has not passed through the screen in the lower layer cannot be discharged in time. These three reasons lead to low screening efficiency; 2. The stirring device and each screen require an independent motor If the control is carried out, the cost will also increase; 3. The screens in the prior art are set in layers, and the device needs to be set at a certain height, which makes feeding relatively difficult

In addition CN110152972A utilizes drum to carry out sand screening in other existing patented technologies, but above-mentioned solution can not carry out classification screening to sand

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