Rotary shaking type sand and gravel screening device
A screening device, sand and gravel technology, applied in the direction of filtration, solid separation, chemical instruments and methods, etc., can solve the problems of single movement, delay of construction time, single movement track of the screen plate, etc., and achieve synchronous coordination of up and down reciprocating shaking , improve synergistic joint effect, and rationally use the effect of screening space
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Embodiment 1
[0049] like Figure 1-3 As shown, this embodiment discloses a rotary shaking type sand and gravel screening device, including a frame 1, a drive motor 21, a connecting rod 22, a lower pressing piece, a movable block 24, a first connecting rod 25, a second connecting rod 26, Fixed sleeve 27, first reset projectile 28, screen 31, sleeve 32, chassis 33, lifting mechanism. The pressing member in this embodiment is preferably a screw sleeve 23 .
[0050] The fixed end of the driving motor 21 is fixed on the frame 1, the output shaft of the driving motor 21 is connected with the top of the connecting rod 22, and the bottom of the connecting rod 22 extends downward. The sleeve 32 is sleeved on the periphery of the connecting rod 22 and there is a gap between the sleeve 32 and the connecting rod 22 . The threaded sleeve 23, the movable block 24 and the fixed sleeve 27 are limited in the sleeve 32 from top to bottom, wherein the threaded sleeve 23 is threadedly matched with the conne...
Embodiment 2
[0078] like Figure 11 As shown, the difference between this embodiment and the above-mentioned embodiment is that a circle of baffles 901 is surrounded on the outer peripheral side of the mesh screen structure, and a blanking box 902 with an upward opening is provided below the mesh screen structure. Sand particles falling from the gap between the baffle plate 901 and the mesh screen structure and the bottom of the mesh screen structure (ie, the bottom mesh 311 ) can fall into the blanking box 902 . A sand outlet pipe 903 is connected to the lower end or bottom of the blanking box 902 .
[0079] The present invention surrounds a circle of baffle plates 901 on the outer peripheral side of the mesh screen structure. The baffle plate 901 can be specifically connected to the frame 1, and a blanking box 902 with an upward opening is arranged under the mesh screen structure. After the sand particles are thrown out through the side of the mesh screen structure, under the blocking a...
Embodiment 3
[0081] like Figure 12-14 As shown, the difference between this embodiment and the above-mentioned embodiment is that the sand outlet pipe 903 is connected with a centralized feeding device, and the centralized feeding device includes a feeding bin 9041, a movable plate 9042, a support spring 9043, a sliding rod 9044, a second reset The projectile body 9045 and the movable plate 9042 are limited in the lower silo 9041 in a sliding fit up and down, and the side surfaces thereof are in sealing contact with the inner wall of the lower silo 9041 . A support spring 9043 is connected between the bottom of the movable plate 9042 and the inner bottom wall of the lower bin 9041 .
[0082] In some embodiments, the support spring 9043 may be a compression spring, and its upper and lower ends may be connected to or in contact with the bottom of the movable plate 9042 and the inner bottom wall of the lower bin 9041, respectively.
[0083] A discharge port is opened on the side of the unlo...
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