Gravel material screening machine

Abstract

The utility model discloses a gravel material screening machine, which relates to the field of infrastructure engineering and comprises symmetrical supports, a connecting rod fixedly connected to the rear end of one side of each support, a connecting frame fixedly connected to the front end of one side of each support, a connecting block fixedly connected to one side of each connecting rod, a clamping block fixedly connected to one side of each connecting block, and a first screening mechanism arranged on the inner side of each clamping block. A second screening mechanism is arranged below the first screening mechanism, a conveying mechanism is arranged below the second screening mechanism, a spray-washing mechanism is arranged below the conveying mechanism and comprises a water tank, a water pump is fixedly connected to one side of the water tank, a water pipe is fixedly connected to one end of the water pump, and a fixing block is fixedly connected to the top of the second screening mechanism. The water pipe is fixedly connected to one side of the fixing block. The device has the advantages that water in the water tank is driven by the water pump to be sprayed to gravels, dust generated during smashing flows into the water tank and sinks to the bottom, and for environmental protection, the water pump is arranged on the upper portion of the water tank, so that upper-layer water in the water tank is recycled.

Description

Technical Field

[0001] The utility model relates to the field of infrastructure engineering, in particular to a sand and gravel screening machine. Background Art

[0002] Infrastructure construction has a huge demand for sand and gravel resources. Sand and gravel is a common building material, widely used in construction, roads, bridges and various industrial and construction projects. It is made from natural ore through crushing, screening and other processes.

[0003] After searching, the Chinese patent announcement number is CN207951705U, which discloses a high-grade sand and gravel screening machine. This patent completes the screening of sand and gravel during the flushing process. The screen frame is tilted and consists of three layers: upper, middle and lower. There are certain problems with this device: the entire screening process is accompanied by flushing, resulting in a huge waste of water resources, and if industrial water is directly discharged, it will have an irreversible impact on the ecological environment. Utility Model Content

[0004] The purpose of the utility model is to provide a sand and gravel screening machine in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A sand and gravel screening machine comprises symmetrical brackets, wherein the rear ends of the brackets are fixedly connected with a connecting rod, the front ends of the brackets are fixedly connected with a connecting frame, one side of the connecting rod is fixedly connected with a connecting block, one side of the connecting block is fixedly connected with a clamping block, a first screening mechanism is arranged on the inner side of the clamping block, a second screening mechanism is arranged below the first screening mechanism, a conveying mechanism is arranged below the second screening mechanism, a spraying mechanism is arranged below the conveying mechanism, a power mechanism is arranged at the bottom of the connecting frame, a first collecting box is arranged below the power mechanism, a second collecting box is arranged below the conveying mechanism, the spraying mechanism comprises a water tank, the water tank is located below the second screening mechanism, a water pump is fixedly connected to the upper part of one side of the water tank, a water pipe is fixedly connected to the end of the water pump away from the water tank, a fixed block is fixedly connected to the top of the second screening mechanism, the water pipe is fixedly connected to one side of the fixed block, and a nozzle is fixedly connected to the other side of the fixed block.

[0007] Preferably, the second screening mechanism includes a plurality of supporting piles, which are located below the first screening mechanism and are symmetrically arranged, a vibration spring assembly is fixedly connected to the top of the supporting pile, a through-limiting plate is fixedly connected to the top of the vibration spring assembly at the rear end, and an L-shaped limiting plate is fixedly connected to the top of the vibration spring assembly at the front end, and both the through-limiting plate and the L-shaped limiting plate are fixedly connected to the screen plate.

[0008] Preferably, the first screening mechanism comprises a fixed ring, which is fixedly connected to the clamping block, the fixed ring is fixedly connected to a feed hopper, the bottom end of the feed hopper is rotatably connected to a screen drum, and the screen drum is placed at a certain inclined angle.

[0009] Preferably, the power mechanism includes a clamping plate, which is fixedly connected to the bottom of the connecting frame, the clamping plate is fixedly connected to a fixing plate, the fixing plate is fixedly connected to a second motor, the output shaft of the second motor is fixedly connected to a connecting column, and both ends of the connecting column are fixedly connected to the inner wall of the screen drum.

[0010] Preferably, the conveying mechanism includes a plurality of pillars, which are symmetrically arranged, and a first motor is fixedly connected to the front end of the pillar on one side, and an output shaft of the first motor is connected to the conveyor belt.

[0011] Preferably, a vibrator is fixedly connected to the outer surface of the screen drum.

[0012] The beneficial effect is that the water pump drives the water in the water tank to spray onto the sand and gravel through the nozzle, so that the dust generated during the crushing flows into the water tank along the water flow and sinks to the bottom. For environmental protection considerations, the water pump is set at the upper part of the water tank so that the upper water in the water tank can be recycled until the water in the water tank needs to be cleaned and replaced.

[0013] The additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through the specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0015] Figure 1 It is a three-dimensional diagram of a sand and gravel screening machine described in the utility model;

[0016] Figure 2 It is an enlarged view of point A of a sand and gravel screening machine described in the utility model;

[0017] Figure 3 This is a front view of a sand and gravel screening machine described in the utility model;

[0018] Figure 4 It is a left view of a sand and gravel screening machine described in the utility model;

[0019] Figure 5 It is a partial structural enlarged view of a sand and gravel screening machine described in the utility model.

[0020] The description of the accompanying drawings is as follows: 101, bracket; 102, connecting rod; 103, connecting block; 104, clamping block; 105, connecting frame; 2, first screening mechanism; 201, fixing ring; 202, screen cylinder; 203, feed hopper; 3, second screening mechanism; 301, supporting pile; 302, vibration spring assembly; 303, through-limiting plate; 304, L-shaped limiting plate; 305, screen plate; 4, spraying mechanism; 401, water tank; 402, water pump; 403, water pipe; 404, fixing block; 405, nozzle; 5, conveying mechanism; 501, pillar; 502, first motor; 503, conveyor belt; 6, power mechanism; 601, clamping plate; 602, fixing plate; 603, second motor; 604, connecting column; 7, first collecting box; 8, second collecting box; 9, vibrator. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] like Figure 1-Figure 5As shown, a sand and gravel screening machine includes symmetrical brackets 101, a connecting rod 102 is welded to the rear end of the brackets 101 close to each other, a connecting frame 105 is welded to the front end of the brackets 101 close to each other, a connecting block 103 is welded to one side of the connecting rod 102, a clamping block 104 is connected to one side of the connecting block 103 by bolts, a first screening mechanism 2 is arranged inside the clamping block 104, a second screening mechanism 3 is arranged below the first screening mechanism 2, a conveying mechanism 5 is arranged below the second screening mechanism 3, and a spraying mechanism 4 is arranged below the conveying mechanism 5. A power mechanism 6 is provided at the bottom of the connecting frame 105, a first collecting box 7 is provided below the power mechanism 6, a second collecting box 8 is provided below the unloading end of the conveying mechanism 5, the spraying mechanism 4 includes a water tank 401, the water tank 401 is located below the second screening mechanism 3, a water pump 402 is connected to the upper part of one side of the water tank 401 by bolts, and a water pipe 403 is threadedly connected to the end of the water pump 402 away from the water tank 401, a fixing block 404 is welded on the top of the second screening mechanism 3, the water pipe 403 passes through the fixing block 404, and a nozzle 405 is threadedly connected to the end of the water pipe 403.

[0025] The second screening mechanism 3 includes a plurality of support piles 301, which are located below the first screening mechanism 2 and are symmetrically arranged. A vibration spring assembly 302 is welded on the top of the support pile 301, and the top of the vibration spring assembly 302 at the rear end is connected with a through limit plate 303 by screws, and the top of the vibration spring assembly 302 at the front end is connected with an L-shaped limit plate 304 by screws. The through limit plate 303 and the L-shaped limit plate 304 are both fixedly connected with a sieve plate 305, and the sieve plate 305 can be pulled out and replaced to achieve different screening results.

[0026] The first screening mechanism 2 includes a fixed ring 201, which is connected to the clamping block 104 by bolts. A feed hopper 203 is welded to the fixed ring 201, and a screen drum 202 is rotatably connected to the bottom end of the feed hopper 203. The screen drum 202 is placed at a certain angle to facilitate the rolling of large pieces of sand and gravel.

[0027] The power mechanism 6 includes a clamping plate 601, which is welded to the bottom of the connecting frame 105. The clamping plate 601 is at a certain angle to the horizontal direction, so that the output shaft of the second motor 603 is coaxial with the inner wall of the sieve drum 202. The clamping plate 601 is welded with a fixing plate 602, and the fixing plate 602 is connected to the second motor 603 by bolts. The output shaft of the second motor 603 is fixedly connected to a connecting column 604, and both ends of the connecting column 604 are connected to the inner wall of the sieve drum 202 by bolts. When the second motor 603 works, it drives the connecting column 604 to rotate, and the connecting column 604 drives the sieve drum 202 to rotate.

[0028] The conveying mechanism 5 includes a plurality of pillars 501 , and the pillars 501 are symmetrically arranged. The front end of the pillars 501 on one side is connected to a first motor 502 by bolts, and the output shaft of the first motor 502 is connected to a conveyor belt 503 .

[0029] The outer surface of the screen drum 202 is connected with a vibrator 9 via bolts for vibrating the screen drum 202 to complete the first screening work.

[0030] Working principle: When in use, the sand and gravel to be screened are poured into the feed hopper 203, and the sand and gravel enter the screen drum 202. Then the second motor 603 works to drive the connecting column 604 to rotate, and the connecting column 604 drives the screen drum 202 to rotate. Since the screen drum 202 is tilted and the vibrator 9 on the outer surface of the screen drum 202 works, the larger pieces of sand and gravel are screened out and fall into the first collection box 7, and are sent to be crushed again. After the first screening, the sand and gravel fall onto the screen plate 305, and the vibration spring assembly 302 works to make the screen plate 305 5, the sand and gravel of suitable size are screened out by vibration. The water pump 402 drives the water in the water tank 401 to be sprayed onto the sand and gravel through the nozzle 405, so that the dust generated during the crushing flows into the water tank 401 along the water flow and sinks to the bottom. For environmental protection considerations, the water pump 402 is arranged at the upper part of the water tank 401, so that the upper water body in the water tank 401 is recycled until the water body in the water tank 401 needs to be cleaned and replaced. Then the first motor 502 works to drive the conveyor belt 503 to work and convey the screened suitable sand and gravel to the second collection box 8.

[0031] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A sand and gravel screening machine, comprising symmetrical brackets (101), wherein the rear ends of the brackets (101) close to each other are fixedly connected with a connecting rod (102), and the front ends of the brackets (101) close to each other are fixedly connected with a connecting frame (105), one side of the connecting rod (102) is fixedly connected with a connecting block (103), one side of the connecting block (103) is fixedly connected with a clamping block (104), and a first screening mechanism (2) is arranged inside the clamping block (104), characterized in that: A second screening mechanism (3) is arranged below the first screening mechanism (2), a conveying mechanism (5) is arranged below the second screening mechanism (3), a spraying mechanism (4) is arranged below the conveying mechanism (5), a power mechanism (6) is arranged at the bottom of the connecting frame (105), a first collecting box (7) is arranged below the power mechanism (6), a second collecting box (8) is arranged below the conveying mechanism (5), the spraying mechanism (4) comprises a water tank (401), the water tank (401) is located below the second screening mechanism (3), a water pump (402) is fixedly connected to an upper part of one side of the water tank (401), an end of the water pump (402) away from the water tank (401) is fixedly connected to a water pipe (403), a fixing block (404) is fixedly connected to the top of the second screening mechanism (3), the water pipe (403) is fixedly connected to one side of the fixing block (404), and a nozzle (405) is fixedly connected to the other side of the fixing block (404).

2. A sand and gravel screening machine according to claim 1, characterized in that: The second screening mechanism (3) comprises a plurality of support piles (301), wherein the support piles (301) are located below the first screening mechanism (2) and are symmetrically arranged, wherein a vibration spring assembly (302) is fixedly connected to the top of the support pile (301), a through-limiting plate (303) is fixedly connected to the top of the vibration spring assembly (302) at the rear end, and an L-shaped limiting plate (304) is fixedly connected to the top of the vibration spring assembly (302) at the front end, and the through-limiting plate (303) and the L-shaped limiting plate (304) are both fixedly connected to a sieve plate (305).

3. A sand and gravel screening machine according to claim 1, characterized in that: The first screening mechanism (2) comprises a fixed ring (201), the fixed ring (201) is fixedly connected to the clamping block (104), the fixed ring (201) is fixedly connected to a feed hopper (203), the bottom end of the feed hopper (203) is rotatably connected to a screen drum (202), and the screen drum (202) is placed at a certain inclined angle.

4. A sand and gravel screening machine according to claim 3, characterized in that: The power mechanism (6) comprises a clamping plate (601), wherein the clamping plate (601) is fixedly connected to the bottom of the connecting frame (105), the clamping plate (601) is fixedly connected to a fixing plate (602), the fixing plate (602) is fixedly connected to a second motor (603), the output shaft of the second motor (603) is fixedly connected to a connecting column (604), and both ends of the connecting column (604) are fixedly connected to the inner wall of the screen drum (202).

5. The sand and gravel screening machine according to claim 1, characterized in that: The conveying mechanism (5) comprises a plurality of pillars (501), wherein the pillars (501) are symmetrically arranged, and a first motor (502) is fixedly connected to the front end of the pillars (501) on one side, and an output shaft of the first motor (502) is connected to a conveyor belt (503).

6. A sand and gravel screening machine according to claim 3, characterized in that: A vibrator (9) is fixedly connected to the outer surface of the screen cylinder (202).

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