Screening assembly for gravel production

Abstract

The utility model discloses a screening assembly for sandstone production, which comprises a support, a cylindrical screw conveyor mounted on the support, a rack mounted below the screw conveyor, a case connected to the rack, a first filter cartridge rotatably connected to the case through a swivel bearing, and a second filter cartridge rotatably connected to the first filter cartridge through a swivel bearing. The second filter cylinder is rotationally connected with the outer wall of the spiral conveyor through a rotating bearing, the first filter cylinder and the second filter cylinder are rotationally connected through a rotating bearing, the outer wall of the second filter cylinder is connected with a spiral cutting knife, and a first driving mechanism for driving the first filter cylinder to rotate is arranged on one side of the rack; a second driving mechanism for driving the second filter cartridge to rotate is arranged on the other side of the rack; a discharging hopper is arranged at the lower end of the case, and the lower end of the discharging hopper is connected with a discharging pipe. Sandstones are conveyed through the spiral conveyor, medium coarse sand and fine sand enter the second filter cylinder through the third filter holes in the conveying process, the coarse sand is conveyed to the next link through the spiral conveyor, and therefore the effect of screening while conveying is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening, in particular to a screening component for sand and gravel production. Background Art

[0002] During the sand and gravel production process, sand and gravel need to be transported and screened, so a screening device is needed. However, the current screening device has the following problems: (1) Transport and screening are operated separately, that is, screening cannot be performed during the transport process, and the large sand and gravel particles after screening cannot be directly sent to the next link; (2) The number of screening stages is small, that is, there is only one stage of screening, and it is difficult to crush large sand and gravel particles during screening, resulting in poor screening effect. Utility Model Content

[0003] In view of the deficiencies of the prior art, the present invention provides a screening assembly for sand and gravel production to solve the problems mentioned in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The filter mechanism of the invention is a kind of filter mechanism, and it is a kind of filter mechanism of the invention.

[0006] Preferably, the screw conveyor includes a cylindrical conveying channel connected to the bracket, a transmission rod rotatably connected to the conveying channel, a spiral conveying wing connected to the transmission rod, a first motor installed at one end of the conveying channel and connected to the transmission rod, a feed port is provided at the top of one end of the conveying channel, a feed hopper is installed on the feed port, a discharge port is provided on the bottom surface of the conveying channel away from the feed port, and a third filter hole is provided on the conveying channel.

[0007] The above technical solution is to add sand and gravel from the feed hopper, let it enter the conveying channel from the feed port, start the first motor, drive the transmission rod to rotate, and during the rotation of the transmission rod, drive the spiral conveying wing to rotate. The material is transported from one end to the other end through the spiral conveying wing and discharged from the discharge port.

[0008] Preferably, the first driving mechanism includes a first support platform, a second motor is installed on the first support platform, the second motor is connected to a first transmission shaft through a coupling, the first transmission shaft is connected to a first main gear, one end of the first filter cartridge is connected to a first sub-gear, and the first main gear is meshed with the first sub-gear.

[0009] In the above technical solution, the second motor is started, and the first filter cartridge is driven to rotate through the cooperation of the first main gear and the first sub-gear.

[0010] Preferably, the second driving mechanism includes a second support platform, a third motor is installed on the second support platform, the third motor is connected to a second transmission shaft through a coupling, the second transmission shaft is connected to a second main gear, one end of the second filter cartridge is connected to a second sub-gear, and the second main gear is meshed with the second sub-gear.

[0011] In the above technical solution, the third motor is started, and the second filter cartridge is driven to rotate through the cooperation of the second main gear and the second sub-gear.

[0012] Preferably, a grid plate is connected to the upper inner portion of the discharge hopper.

[0013] In the above technical solution, the fine sand and gravel in the chassis enter the discharge hopper after passing through the grid plate and are finally discharged.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Sand and gravel are transported by a screw conveyor. During the transportation process, medium-coarse sand and fine sand enter the second filter cylinder through the third filter hole, and the coarse sand is transported to the next link by the screw conveyor, thus realizing the effect of screening while transporting.

[0016] After the medium-coarse sand and fine sand enter the second filter cartridge, they enter the first filter cartridge through the second filter hole on the second filter cartridge, and then the second filter cartridge is controlled to rotate by the second drive mechanism, so that the sand and gravel are cut by the cutting knife, thereby crushing the sand and gravel. Then the first filter cartridge is controlled to rotate by the first drive mechanism, so as to further screen the fine sand and gravel into the chassis and finally discharged from the discharge hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 is a schematic diagram of the first filter cartridge;

[0020] In the figure: 1- bracket, 2- screw conveyor, 201- conveying channel, 202- transmission rod, 203- screw conveyor wing, 204- first motor, 205- feed port, 206- feed hopper, 207- discharge port, 3- frame, 4- chassis, 5- first filter cartridge, 6- second filter cartridge, 7- cutting knife, 8- discharge hopper, 9- discharge pipe, 10- first support platform, 11- second motor, 12- first main gear, 13- first sub-gear, 14- second support platform, 15- third motor, 16- second main gear, 17- second sub-gear, 18- grid plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1

[0023] See also Figure 1-Figure 3 The filter element 3 is a kind of filter element of the present invention, and its filter element is a kind of material filter element of the present invention, and its filter element is a kind of filter element of the present invention. The outer wall of the second filter cartridge 6 is connected with a spiral cutting knife 7 to cut and crush the medium and coarse sand in the first filter cartridge. A first driving mechanism for driving the first filter cartridge 5 to rotate is provided on one side of the frame 3, and a second driving mechanism for driving the second filter cartridge 6 to rotate is provided on the other side of the frame 3; a discharge hopper 8 is provided at the lower end of the chassis 4, and a discharge pipe 9 is connected to the lower end of the discharge hopper 8 for discharging fine sand.

[0024] The screw conveyor 2 includes a cylindrical conveying channel 201 connected to a bracket, a transmission rod 202 rotatably connected to the conveying channel, a spiral conveying wing 203 connected to the transmission rod, and a first motor 204 installed at one end of the conveying channel and transmission-connected to the transmission rod. A feed port 205 is provided at the top of one end of the conveying channel, a feed hopper 206 is installed on the feed port 205, a discharge port 207 is provided on the bottom surface of the conveying channel 201 away from the feed port, and a third filter hole is provided on the conveying channel 201. Sand and gravel are added from the feed hopper 206 and enter the conveying channel 201 through the feed port 205. The first motor 204 is started, driving the transmission rod 202 to rotate. During the rotation of the transmission rod 202, the spiral conveying wing 203 is driven to rotate. The material is transported from one end to the other end by the spiral conveying wing 203 and discharged through the discharge port 207.

[0025] The first drive mechanism includes a first support platform 10, on which a second motor 11 is mounted. A first transmission shaft is connected to the second motor 11 via a coupling, and a first main gear 12 is connected to the first transmission shaft. A first sub-gear 13 is connected to one end of the first filter cartridge 5, and the first main gear 12 meshes with the first sub-gear 13. When the second motor 11 is activated, the first main gear 12 and the first sub-gear 13 cooperate to drive the first filter cartridge 5 to rotate, thereby screening the sand and gravel in the first filter cartridge 5.

[0026] The second drive mechanism includes a second support platform 14, on which a third motor 15 is mounted. A second transmission shaft is connected to the third motor 15 via a coupling, and a second main gear 16 is connected to the second transmission shaft. A second sub-gear 17 is connected to one end of the second filter cartridge 6, and the second main gear 16 meshes with the second sub-gear 17. When the third motor 15 is activated, the second filter cartridge 6 rotates through the cooperation of the second main gear 16 and the second sub-gear 17, thereby driving the cutter blade to cut and crush the coarse sand.

[0027] The working principle of this embodiment is:

[0028] The sand and gravel are transported by the screw conveyor 2. During the transport process, the medium-coarse sand and fine sand enter the second filter cartridge 6 through the third filter hole. The coarse sand is then transported by the screw conveyor 2 to the next stage, thus achieving the function of simultaneous transport and screening. After the medium-coarse sand and fine sand enter the second filter cartridge 6, they enter the first filter cartridge 5 through the second filter hole on the second filter cartridge 6. The second drive mechanism then controls the rotation of the second filter cartridge 6, which in turn is cut by the cutter 7, thereby shredding the sand and gravel. The first drive mechanism then controls the rotation of the first filter cartridge 5, which further screens the fine sand and gravel, throwing it into the chassis 4 and ultimately discharged from the discharge hopper 8.

[0029] Example 2

[0030] On the basis of embodiment 1, the upper part of the inner side of the discharge hopper 8 is connected with a grid plate 18. The fine sand and gravel in the chassis enter the discharge hopper after passing through the grid plate and are finally discharged.

[0031] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screening assembly for sand and gravel production, characterized by: The invention comprises a bracket (1), a columnar screw conveyor (2) is mounted on the bracket (1), a frame (3) is mounted below the screw conveyor (2), a chassis (4) is connected to the frame (3), a first filter cartridge (5) is rotatably connected to the chassis (4) via a rotary bearing, a plurality of first filter holes are provided on the first filter cartridge (5), a second filter cartridge (6) is provided in the first filter cartridge (5), a plurality of second filter holes are provided on the second filter cartridge (6), the second filter cartridge (6) is rotatably connected to the outer wall of the screw conveyor (2) via a rotary bearing, and the first filter cartridge (5) and the second filter cartridge (6) are rotatably connected. The screw conveyor (2) is rotatably connected via a rotary bearing. A plurality of third filter holes connected to the second filter cartridge are provided on the screw conveyor (2). The aperture of the third filter hole is smaller than that of the second filter hole. The aperture of the first filter hole is smaller than that of the second filter hole. A spiral cutting knife (7) is connected to the outer wall of the second filter cartridge (6). A first driving mechanism for driving the first filter cartridge (5) to rotate is provided on one side of the frame (3). A second driving mechanism for driving the second filter cartridge (6) to rotate is provided on the other side of the frame (3). A discharge hopper (8) is provided at the lower end of the chassis (4). The lower end of the discharge hopper (8) is connected to a discharge pipe (9).

2. A screening assembly for sand and gravel production according to claim 1, characterized in that: The screw conveyor (2) comprises a cylindrical conveying channel (201) connected to a bracket, a transmission rod (202) rotatably connected to the conveying channel, a spiral conveying wing (203) connected to the transmission rod, and a first motor (204) installed at one end of the conveying channel and transmission-connected to the transmission rod; a feed port (205) is provided at the top of one end of the conveying channel, a feed hopper (206) is installed on the feed port (205), a discharge port (207) is provided on the bottom surface of the conveying channel (201) away from the feed port, and a third filter hole is provided on the conveying channel (201).

3. A screening assembly for sand and gravel production according to claim 2, characterized in that: The first driving mechanism comprises a first support platform (10), a second motor (11) is mounted on the first support platform (10), a first transmission shaft is connected to the second motor (11) via a coupling, a first main gear (12) is connected to the first transmission shaft, one end of the first filter cartridge (5) is connected to a first sub-gear (13), and the first main gear (12) is meshed with the first sub-gear (13).

4. A screening assembly for sand and gravel production according to claim 3, characterized in that: The second driving mechanism comprises a second support platform (14), a third motor (15) is mounted on the second support platform (14), the third motor (15) is connected to a second transmission shaft via a coupling, the second transmission shaft is connected to a second main gear (16), one end of the second filter cartridge (6) is connected to a second sub-gear (17), and the second main gear (16) is meshed with the second sub-gear (17).

5. A screening assembly for sand and gravel production according to claim 4, characterized in that: The upper portion of the inner side of the discharge hopper (8) is connected with a grid plate (18).

Images