CN216174047U

CN216174047U - Vibration screening machine

Info

Publication number: CN216174047U
Application number: CN202122393283.9U
Authority: CN
Inventors: 杨玉
Original assignee: Ningxia Ruiyuan Oil Fracturing Proppant Co ltd
Current assignee: Ningxia Ruiyuan Oil Fracturing Proppant Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-05
Anticipated expiration: 2031-09-30

Abstract

The utility model provides a vibrating sieving machine, which comprises: the screening machine comprises a feed hopper arranged at the upper part of the screening machine, a primary horizontal vibrating screen positioned below the feed hopper, and a secondary horizontal vibrating screen positioned below the primary horizontal vibrating screen; when the first-level horizontal vibrating screen and the second-level horizontal vibrating screen are used for screening sand materials, the vibrating driving device drives the first-level horizontal vibrating screen and the second-level horizontal vibrating screen to move only in the horizontal direction, sand particles are enabled to roll on the surface of the screen continuously, and the screening machine is efficient and capable of separating low-dust sand particles.

Description

Vibration screening machine

Technical Field

The utility model relates to a screening machine, in particular to a vibrating screening machine.

Background

At oil fracturing sand, casting 3D prints and uses sand, technology sand carving uses sand, 3D prints sand carving and carries out the in-process of classifying and screening with sand, adopt the reciprocating sieve to carry out the time of screening, the sand that the particle diameter is little sees through the screen cloth and gets into the one deck and continue to sieve down, the sand that the particle diameter is big is separated the upper strata, supreme difference FIFO fines in proper order is followed during the ejection of compact, go out the coarse fodder again, current screening plant adopts vibrating motor snap-on the reciprocating sieve more, the reciprocating sieve is connected with the frame of rigidity through the spring all around, the inertial vibration that causes when vibrating motor relies on self gyration drives whole vibrating sieve vibration from top to bottom, but the problem in vibration mode area like this is: the equipment radiography is big, and when screening the finer sand of particulate matter, the raise dust phenomenon easily appears, can cause the pollution to the environment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a vibrating screening machine for solving the problems in the prior art.

This screening machine includes: the screening machine comprises a feed hopper arranged at the upper part of the screening machine, a primary horizontal vibrating screen positioned below the feed hopper, and a secondary horizontal vibrating screen positioned below the primary horizontal vibrating screen; when the primary horizontal vibrating screen and the secondary horizontal vibrating screen are used for screening sand materials, the vibrating driving device drives the primary horizontal vibrating screen and the secondary horizontal vibrating screen to move only in the horizontal direction, and sand particles are enabled to roll on the surface of the screen continuously.

Further, the oscillation driving device includes: the double-crank shaft is arranged in parallel to the plane where the first-stage horizontal vibrating screen or the second-stage horizontal vibrating screen is located, and the one-way limiting driving arm is connected with the double-crank shaft and the first-stage horizontal vibrating screen or the second-stage horizontal vibrating screen.

Furthermore, the one-way limiting driving arm is provided with a long groove perpendicular to the plane where the first-stage horizontal oscillating screen or the second-stage horizontal oscillating screen is located, and the long groove is sleeved on the eccentric excircle of the double-crank shaft.

Furthermore, one end of the double crank shaft is connected with a speed reducing motor.

Further, screen cloth support is being set up to one-level horizontal shock sieve and second grade horizontal shock sieve below, and one-level horizontal shock sieve and second grade horizontal shock sieve both ends are equipped with gyro wheel side by side, gyro wheel and screen cloth support rolling contact.

Furthermore, the upper end and the lower end of the roller are provided with jumping limit grooves, so that the roller can only roll along the length direction of the jumping limit grooves.

Further, the bottom of the first-level horizontal vibrating screen and the bottom of the second-level horizontal vibrating screen are both provided with bottom material receiving hoppers, and meanwhile, side material receiving hoppers are further arranged on the side edges of the first-level horizontal vibrating screen and the second-level horizontal vibrating screen.

The utility model has the technical effects that: by utilizing the elongated slots on the double crank shaft and the one-way limiting driving arm, when the double crank shaft is rotated, the first-level horizontal vibrating screen or the second-level horizontal vibrating screen can not jump but can only move horizontally along the horizontal direction, and sand grains on the surface of the screen mesh roll under the condition of screen mesh contact, so that the sand passing speed of the screen mesh can be effectively improved, and the dust raising phenomenon can not be caused.

Drawings

Figure 1 is an isometric view of a screening machine according to the present invention;

figure 2 is a front view of the sizer of the present invention.

In the figure, 1, a feed hopper, 2, a first-level horizontal oscillating screen, 3, a second-level horizontal oscillating screen, 4, a bottom material receiving hopper, 5, a side material receiving hopper, 20, an oscillating driving device, 21, a double crank shaft, 22, a speed reducing motor, 23, a one-way limiting driving arm, 24, a roller, 25, a screen support, 26, a jumping limiting groove and 231, an elongated groove are arranged.

Detailed Description

The following describes an embodiment of the present invention with reference to fig. 1 to 2.

Figure 1 illustrates the main components and external structure of a screening machine comprising: set up in feeder hopper 1 on screening machine upper portion, be located the one-level of feeder hopper 1 below and vibrate sieve 2, be located the second grade level that the one-level vibrates sieve 2 below and vibrate sieve 3, wherein, the one-level vibrates sieve 2 and second grade level and vibrates sieve 3 when screening sand material, only removes at the horizontal direction by vibrating drive arrangement 20 drive both, lets the sand grain constantly roll on the screen cloth surface.

The oscillation driving device 20 includes: the double-crank shaft 21 is arranged in parallel to the plane where the primary horizontal vibrating screen 2 or the secondary horizontal vibrating screen 3 is located, and the one-way limiting driving arm 23 is used for connecting the double-crank shaft 21 with the primary horizontal vibrating screen 2 or the secondary horizontal vibrating screen 3; the one-way limiting driving arm 23 is provided with a long groove 231 vertical to the plane of the first-stage horizontal oscillating screen 2 or the second-stage horizontal oscillating screen 3, and the long groove 231 is sleeved on the eccentric excircle of the double crank shaft 21; one end of the double crank shaft 21 is connected with a speed reducing motor 22.

Fig. 2 illustrates the structural characteristics of the side surface of the sieving machine, a screen support 25 is arranged below the primary horizontal oscillating screen 2 and the secondary horizontal oscillating screen 3, two ends of the primary horizontal oscillating screen 2 and the secondary horizontal oscillating screen 3 are provided with side-by-side rollers 24, and the rollers 24 are in rolling contact with the screen support 25; the upper and lower ends of the roller 24 are provided with bounce limiting grooves 26, so that the roller can only roll along the length direction of the bounce limiting grooves 26. The bottom of one-level horizontal vibrating screen 2 and second grade horizontal vibrating screen 3 all is equipped with bottom receiving hopper 4, and simultaneously, still be equipped with lateral part receiving hopper 5 on the side of one-level horizontal vibrating screen 2 and second grade horizontal vibrating screen 3.

The working principle is as follows: the sand material is poured on the first-level horizontal oscillating screen 2 through the feed hopper 1, the double crank shaft 21 is driven to rotate by the speed reducing motor 22, the eccentric excircle on the double crank shaft 21 is positioned in the long groove 231, the one-way limiting driving arm 23 and the first-level horizontal oscillating screen 2 are driven to reciprocate in the horizontal direction by the rotation of the double crank shaft 21, the sand particles continuously roll on the surface of the first-level horizontal oscillating screen 2, the sand particles with the particle sizes smaller than the meshes of the screen mesh are drained to the second-level horizontal oscillating screen 3 through the bottom material receiving hopper 4 below, a part of the sand particles with the larger particle sizes flow out from the side material receiving hopper 5, the second-level horizontal oscillating screen 3 and the first-level horizontal oscillating screen 2 have the same screening mode, and the sand material from the bottom material receiving hopper 4 is screened into sand particles with two specifications again.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vibratory screening machine, comprising: a feed hopper (1) arranged at the upper part of the sieving machine, a primary horizontal vibrating screen (2) positioned below the feed hopper (1), and a secondary horizontal vibrating screen (3) positioned below the primary horizontal vibrating screen (2);

when the primary horizontal vibrating screen (2) and the secondary horizontal vibrating screen (3) screen sand materials, the vibrating driving device (20) drives the primary horizontal vibrating screen and the secondary horizontal vibrating screen to move only in the horizontal direction, and sand particles are enabled to roll on the surface of the screen continuously.

2. The vibratory screening machine according to claim 1, wherein the oscillating drive device (20) includes: the double-crank shaft (21) is arranged on the plane parallel to the first-stage horizontal vibrating screen (2) or the second-stage horizontal vibrating screen (3), and the one-way limiting driving arm (23) is connected with the double-crank shaft (21) and the first-stage horizontal vibrating screen (2) or the second-stage horizontal vibrating screen (3).

3. The vibrating screen machine according to claim 2, characterized in that the one-way limiting driving arm (23) is provided with a long groove (231) perpendicular to the plane of the first-stage horizontal oscillating screen (2) or the second-stage horizontal oscillating screen (3), and the long groove (231) is sleeved on the eccentric outer circle of the double crank shaft (21).

4. The vibratory screen machine according to claim 3, characterized in that one end of the double crank shaft (21) is connected to a reduction motor (22).

5. The vibrating screen machine according to claim 3, characterized in that a screen support (25) is arranged below the primary horizontal vibrating screen (2) and the secondary horizontal vibrating screen (3), and rollers (24) are arranged at two ends of the primary horizontal vibrating screen (2) and the secondary horizontal vibrating screen (3) side by side, wherein the rollers (24) are in rolling contact with the screen support (25).

6. The vibratory screen machine according to claim 5, wherein the rollers (24) are provided at upper and lower ends thereof with run-out limiting grooves (26) so that the rollers can roll only along the length direction of the run-out limiting grooves (26).

7. The vibrating screen machine according to claim 1, characterized in that the primary horizontal vibrating screen (2) and the secondary horizontal vibrating screen (3) are provided with bottom receiving hoppers (4) at the bottom and side receiving hoppers (5) at the sides of the primary horizontal vibrating screen (2) and the secondary horizontal vibrating screen (3).