River sand collecting and screening device

Abstract

The utility model provides a river sand collecting and screening device, which relates to the technical field of river sand treatment and comprises an inclined conveying belt, a stirring and drying hopper, a material dispersing and discharging pipe, a support frame, a screening device, a connecting rod, a connecting plate and a vibration motor, an inclined conveying belt is adopted for conveying river sand for collection work, the collected river sand enters a stirring and drying hopper to be scattered and dried, the dried river sand is scattered through a material scattering and discharging pipe and then guided and discharged to fall at the feeding end of a screening device, and the screening device is matched with a vibration motor to achieve vibration screening. And large-particle impurities and fine powder in the river sand are separated out, qualified river sand is collected, the processing efficiency can be effectively improved through cooperation of dispersed and dried river sand and vibration screening, and the problem that a screen is blocked is not prone to occurring.

Description

Technical Field

[0001] This utility model relates to the field of river sand treatment technology, and in particular to a river sand collection and screening device. Background Technology

[0002] The descriptions in this section provide background information relating to this disclosure and do not constitute prior art.

[0003] After collection, river sand needs to be screened to remove large particles and fine powder. Large particles will affect the quality of concrete when river sand is used as aggregate, while fine powder will increase the amount of cement used in the concrete, thus reducing economic benefits.

[0004] The river sand screening devices in the relevant technologies do not have a drying function. When relatively moist river sand enters the device, screening is difficult and blockages are likely to occur, reducing the efficiency of river sand preparation. Utility Model Content

[0005] The purpose of this invention is to provide a river sand collection and screening device, which has the advantages of drying, guiding and dispersing the collected river sand. It solves the technical problem that when relatively moist river sand enters the device, screening is difficult and blockages are likely to occur, thus reducing the efficiency of river sand preparation.

[0006] This utility model provides a river sand collection and screening device, comprising:

[0007] An inclined conveyor belt has a mixing and drying hopper located below its output top, and a material dispersion and feeding pipe is fixedly connected to the lower end of the mixing and drying hopper.

[0008] The lower end of the inclined conveyor belt is fixedly equipped with a support frame;

[0009] The screening device has a connecting rod fixedly mounted between its side wall and the support frame;

[0010] A gap is left between the bottom surface of the screening device and the ground;

[0011] A connecting plate is installed between the outer wall of the mixing and drying hopper and the upper edge of the feed end side of the screening device.

[0012] The material dispersion and feeding pipe is located above the feed side of the screening device;

[0013] Vibration motors are uniformly fixed to the outer wall of the screening device along its length.

[0014] As a further optimization, in order to disperse and dry the river sand, the mixing and drying hopper includes:

[0015] The hopper body has a material dispersion and feeding pipe fixedly connected to its lower end;

[0016] A connecting plate is installed between the outer wall of the hopper body and the upper edge of the feed end side of the screening device.

[0017] The inner wall of the hopper body is coiled with electric heating tubes;

[0018] A stirrer is horizontally mounted in the middle of the inner wall of the hopper body, and its drive end is fixedly mounted on the outer wall of the hopper body.

[0019] As a further optimization, in order to stir and disperse the river sand in the inner cavity of the hopper body to facilitate heating and drying, the stirrer includes:

[0020] The servo motor is fixedly mounted in the middle of the outer wall of the hopper body, and the output end of the servo motor passes through the adjacent outer wall of the hopper body.

[0021] The output end of the servo motor is fixedly connected to one end of a round rod, and the other end of the round rod is rotatably connected to the inner wall of the hopper body.

[0022] The outer wall of the round rod is uniformly fitted with stirring blades.

[0023] As a further optimization, in order to guide and disperse the dried river sand in the mixing and drying hopper, so that the dispersed river sand falls evenly onto the feed end of the screening device, the material dispersion and feeding pipe includes:

[0024] An inclined discharge pipe, the upper end of which is fixedly connected to the discharge port of the hopper body;

[0025] The inner diameter of the inclined discharge pipe gradually decreases from top to bottom;

[0026] A material distribution net is horizontally fixed inside the inclined discharge pipe.

[0027] As a further optimization, in order to separate large particles and fine powder from river sand to obtain qualified river sand, the screening device includes:

[0028] The storage tank has an opening on the side away from the inclined conveyor belt.

[0029] A first filter screen is horizontally fixedly assembled on the upper end of the inner wall of the storage tank.

[0030] A second filter screen is horizontally fixedly installed at the lower end of the inner wall of the storage tank.

[0031] The mesh size of the second filter screen is smaller than that of the first filter screen;

[0032] The first and second filters are tilted downwards at the ends near the opening of the receiving tank.

[0033] As a further optimization, in order to separately guide and discharge large particulate impurities and qualified river sand for easy collection, a first extension plate is fixedly connected to the inclined lower end of the first filter screen.

[0034] The second filter screen is fixedly connected to a second extension plate at its inclined lower end;

[0035] The length of the first extension plate is greater than the length of the second extension plate.

[0036] As a further optimization, in order to facilitate the outward flow of fine powder filtered and discharged by the second filter screen at the lower end of the inner cavity of the storage tank through the ramp, the bottom surface of the inner cavity of the storage tank is fixedly equipped with a ramp, which is inclined downward at the end near the opening of the storage tank.

[0037] As a further optimization, in order to provide elastic support for the screening device and improve the stability of the screening device, elastic rubber blocks are fixedly installed at the four corners of the bottom surface of the screening device, with their lower ends abutting against the ground.

[0038] As a further optimization, in order to shield the river sand conveyed on the outer wall of the inclined conveyor belt and prevent the river sand from slipping during the uphill conveying process, the upper edge of the inclined conveyor belt is provided with baffles on both the front and rear sides, and the outer wall of the inclined conveyor belt is uniformly fixed with longitudinal baffles along the length direction.

[0039] The longitudinal baffle is slidably attached to the inner wall of the baffle edge on the same side at both its front and rear ends.

[0040] As a further optimization, in order to provide stable support for the inclined conveyor belt, the support frame includes:

[0041] Two long legs are distributed in parallel front and rear, and the upper ends of the two long legs are fixedly assembled to the same side of the upper end of the outer wall of the inclined conveyor belt.

[0042] There are two short legs, which are distributed in parallel front and rear, and the upper ends of the two short legs are fixedly assembled to the same side of the lower end of the outer wall of the inclined conveyor belt.

[0043] The lower ends of both the long and short legs rest against the ground.

[0044] This utility model provides an improved river sand collection and screening device, which has the following improvements and advantages compared with the prior art:

[0045] The river sand is collected using an inclined conveyor belt. The collected river sand enters a mixing and drying hopper for dispersing and drying. After drying, the river sand is dispersed through a material dispersion discharge pipe and then guided to the feed end of a screening device. The screening device uses a vibrating motor to perform vibrating screening, separating large particles and fine powder from the river sand and collecting qualified river sand. The dispersed and dry river sand, combined with vibrating screening, can effectively improve processing efficiency and reduce the risk of screen clogging. Attached Figure Description

[0046] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the structure of this utility model;

[0048] Figure 2 This is a partial structural schematic diagram of the present invention;

[0049] Figure 3 This is a schematic diagram of the mixing and drying hopper structure of this utility model;

[0050] Figure 4 This is a schematic cross-sectional view of the mixing and drying hopper structure of this utility model;

[0051] Figure 5 This is a schematic cross-sectional view of the screening device of this utility model.

[0052] Explanation of reference numerals in the attached figures:

[0053] 1- Inclined conveyor belt, 11- Longitudinal baffle, 2- Screening device, 21- Collection tank, 22- First filter screen, 23- First extension plate, 24- Second filter screen, 25- Second extension plate, 26- Slope, 3- Elastic rubber block, 4- Vibrating motor, 5- Mixing and drying hopper, 51- Hopper body, 52- Heating tube, 53- Agitator, 531- Servo motor, 532- Round rod, 533- Mixing blade, 6- Sidewall, 7- Support frame, 71- Long support leg, 72- Short support leg, 8- Connecting plate, 9- Material dispersing and feeding pipe, 91- Inclined discharge pipe, 92- Dispersing net. Detailed Implementation

[0054] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0055] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0056] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0057] Please see Figure 1-5 This utility model provides a technical solution: a river sand collection and screening device, comprising:

[0058] An inclined conveyor belt 1 has a mixing and drying hopper 5 located below its output upper end, and a material dispersing and feeding pipe 9 is fixedly connected to the lower end of the mixing and drying hopper 5.

[0059] A support frame 7 is fixedly mounted at the lower end of the inclined conveyor belt 1;

[0060] The screening device 2 has a connecting rod fixedly mounted between its side wall and the support frame 7;

[0061] A gap is left between the bottom surface of screening device 2 and the ground.

[0062] A connecting plate 8 is installed between the outer wall of the mixing and drying hopper 5 and the upper edge of the feed end side of the screening device 2;

[0063] The material dispersion and feeding pipe 9 is located above the feed side of the screening device 2;

[0064] Vibration motors 4 are uniformly fixedly mounted on the outer wall of the screening device 2 along its length.

[0065] Specifically, in this embodiment, the mixing and drying hopper 5 is equipped with a stirrer in the middle of the drying hopper to heat and dry the mixed and dispersed river sand more quickly and evenly. The material dispersion discharge pipe 9 is used to disperse the dried river sand, so that the dried river sand to be dried falls dispersed at the feed end of the screening device 2. The vibration motor 4 vibrates the screening device 2 to achieve the vibration screening effect. The dispersed and dry river sand combined with the vibration screening can effectively improve the processing efficiency and is less likely to cause screen clogging.

[0066] Furthermore, the vibrating motors 4 in the device are connected in parallel to an external power source, and the mixing and drying hopper 5 and the inclined conveyor belt 1 are each connected to an external power source for operation. The device can be set up on the riverbank when in use, and the inclined conveyor belt 1 is used to transport the collected river sand.

[0067] More specifically, in the scheme, the screening device 2 is fixedly connected to the support frame 7 at the lower end of the inclined conveyor belt 1 via a connecting rod, so that the screening device 2 and the inclined conveyor belt 1 are connected as a whole. The mixing and drying hopper 5 is fixed at the upper end of the screening device 2 and located below the upper discharge side of the inclined conveyor belt 1, ensuring that the river sand discharged from the inclined conveyor belt 1 is dried by the mixing and drying hopper 5 and then dispersed and guided by the material dispersion discharge pipe 9 at its lower end before falling into the feed end of the screening device 2.

[0068] It is understood that the connecting rod between the screening device 2 and the support frame 7 at the lower end of the inclined conveyor belt 1 in this device is connected by bolts. When necessary, the bolts can be removed to separate the screening device 2 and the inclined conveyor belt 1, and the two can be used separately.

[0069] In some embodiments, the stirring drying hopper 5 includes:

[0070] The hopper body 51 has a material dispersion and feeding pipe 9 fixedly connected to its lower end;

[0071] A connecting plate 8 is installed between the outer wall of the hopper body 51 and the upper edge of the feed end side of the screening device 2;

[0072] The inner wall of the hopper body 51 is wrapped with electric heating tubes 52;

[0073] A stirrer 53 is horizontally mounted in the middle of the inner wall of the hopper body 51, and its drive end is fixedly mounted on the outer wall of the hopper body 51.

[0074] Specifically, in this embodiment, the hopper body 51 is wider at the top and narrower at the bottom to facilitate feeding, and an installation cavity is opened on the inner wall of the hopper body 51 corresponding to the coiled electric heating tube 52.

[0075] Furthermore, the electric heating element 52 is connected to an external power source to generate heat, and the heat is transferred to the river sand inside the hopper body 51. The agitator 53 is connected to an external power source to continuously tumble and stir the river sand inside the hopper body 51.

[0076] It is understandable that the size of the discharge port at the lower end of the hopper body 51 is much smaller than the size of its inlet. The smaller size of the discharge port allows sufficient time for stirring and drying inside the hopper body 51.

[0077] In some embodiments, the stirrer 53 includes:

[0078] The servo motor 531 is fixedly mounted in the middle of the outer wall of the hopper body 51, and the output end of the servo motor 531 passes through the adjacent outer wall of the hopper body 51.

[0079] The output end of the servo motor 531 is fixedly connected to one end of the round rod 532, and the other end of the round rod 532 is rotatably connected to the inner wall of the hopper body 51.

[0080] The outer wall of the round rod 532 is uniformly fitted with stirring blades 533.

[0081] Specifically, in this embodiment, the servo motor 531 is connected to an external power source to drive the rod 532 and the stirring blade 533 to rotate, thereby breaking up the river sand inside the hopper body 51.

[0082] More specifically, the conveying speed of the inclined conveyor belt 1 is set to match the discharge speed of the material dispersion discharge pipe 9, ensuring that the amount of river sand stored in the inner cavity of the hopper body 51 is less than two-thirds of its volume, leaving enough space for the river sand to be dispersed and dried.

[0083] In some embodiments, the material dispersing and feeding pipe 9 includes:

[0084] An inclined discharge pipe 91 is fixedly connected at its upper end to the discharge port of the hopper body 51;

[0085] The inner diameter of the inclined discharge pipe 91 gradually decreases from top to bottom;

[0086] A material distribution net 92 is horizontally fixed inside the inclined discharge pipe 91.

[0087] Specifically in this embodiment, the inclined discharge pipe 91 feeds in at the upper end and discharges at the lower end, and the dried river sand is dispersed by the material distribution net 92 during the material guiding process;

[0088] Furthermore, the bulk material mesh 92 is specifically equipped with a stainless steel mesh with a large mesh size, which allows large particles of impurities in the river sand to pass through and disperses the passing river sand.

[0089] In some embodiments, the screening device 2 includes:

[0090] The storage trough 21 has an opening on the side away from the inclined conveyor belt 1;

[0091] A first filter screen 22 is horizontally fixedly assembled on the upper end of the inner wall of the storage tank 21;

[0092] A second filter screen 24 is horizontally fixedly assembled at the lower end of the inner wall of the storage tank 21;

[0093] The mesh size of the second filter 24 is smaller than that of the first filter 22;

[0094] The first filter 22 and the second filter 24 are tilted downwards at the ends near the opening of the receiving tank 21.

[0095] Specifically, in this embodiment, a vibration motor 4 is installed on the outer wall of the receiving tank 21 to transmit vibration. The dried river sand that falls on the feed end of the first filter screen 22 is vibrated and slides down its slope. Large particles of impurities remain on the upper surface of the first filter screen 22 and finally slide down from the discharge end to be discharged. The dried river sand that has had large particles of impurities filtered out falls on the second filter screen 24 and slides down its slope through vibration. The fine powder in it falls from the mesh of the second filter screen 24 onto the bottom surface of the inner cavity of the receiving tank 21. The qualified river sand that is filtered out remains on the upper surface of the second filter screen 24 and finally slides down from the discharge end to be discharged, thus collecting the qualified river sand.

[0096] Furthermore, the collection tank 21 has an opening on the side away from the inclined conveyor belt 1, which facilitates the collection of qualified river sand. During the collection process, large particles of impurities that slide down along the first filter screen 22 can be guided to other locations to avoid collecting qualified river sand.

[0097] In some embodiments, a first extension plate 23 is fixedly connected to the inclined lower end of the first filter screen 22;

[0098] The second filter screen 24 is fixedly connected to the lower inclined end of the second extension plate 25;

[0099] The length of the first extension plate 23 is greater than the length of the second extension plate 25.

[0100] Specifically in this embodiment, the large particles of impurities and qualified river sand separated by the first extension plate 23 and the second extension plate 25 of different lengths are guided to different positions, which facilitates the collection of qualified river sand and allows the large particles to be collected by themselves when needed.

[0101] In some embodiments, a ramp 26 is fixedly mounted on the bottom surface of the inner cavity of the storage tank 21. The ramp 26 is inclined downward near the opening of the storage tank 21. Under the vibration of the vibration motor 4, the fine powder falling into the lower end of the inner cavity of the storage tank 21 is guided outward and discharged through the ramp 26.

[0102] In some embodiments, elastic rubber blocks 3 are fixedly installed at the four corners of the bottom surface of the screening device 2, with their lower ends abutting against the ground to provide elastic support for the screening device 2. When the device is not in use, this reduces the pressure on the connecting rod between the screening device 2 and the support frame 7; and when the device is working, it does not affect the vibration of the screening device 2 by the vibrating motor 4.

[0103] In some embodiments, the inclined conveyor belt 1 is provided with side guards 6 on both the front and rear sides of the upper edge, and the outer wall of the belt of the inclined conveyor belt 1 is uniformly fixed with longitudinal baffles 11 along the length direction.

[0104] The longitudinal baffle 11 slides and fits against the inner wall of the side guard 6 on the same side at both ends. The front and rear guards 6 block the upper edge of the inclined conveyor belt 1 on both sides to prevent the river sand from leaking out during the conveying process. The longitudinal baffle 11 also prevents the river sand from slipping during the uphill conveying process.

[0105] In some embodiments, the support frame 7 includes:

[0106] There are two long legs 71, which are distributed in parallel front and rear. The upper ends of the two long legs 71 are fixedly assembled to the same side of the upper end of the outer wall of the inclined conveyor belt 1.

[0107] There are two short legs 72, which are distributed in parallel front and rear. The upper ends of the two short legs 72 are fixedly assembled to the same side of the lower end of the outer wall of the inclined conveyor belt 1.

[0108] The lower ends of both the long support leg 71 and the short support leg 72 rest against the ground, and the long support leg 71 and the short support leg 72 work together to provide stable support for the inclined conveyor belt.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A river sand collecting and sieving device characterized by, include: An inclined conveyor belt (1) is provided with a mixing and drying hopper (5) below its output upper end, and the lower end of the mixing and drying hopper (5) is fixedly connected to a material dispersion and feeding pipe (9). The lower end of the inclined conveyor belt (1) is fixedly equipped with a support frame (7). The screening device (2) has a connecting rod fixedly mounted between its side wall and the support frame (7); The bottom surface of the screening device (2) is left with a gap between it and the ground. A connecting plate (8) is installed between the outer wall of the mixing and drying hopper (5) and the upper edge of the feeding end of the screening device (2). The material dispersion feed pipe (9) is located above the feed side of the screening device (2); The screening device (2) has a vibrating motor (4) uniformly fixedly mounted on its outer wall along the length direction.

2. A river sand collecting and sieving device as claimed in claim 1, wherein, The stirring and drying hopper (5) includes: The hopper body (51) has a material dispersion and feeding pipe (9) fixedly connected to its lower end. A connecting plate (8) is installed between the outer wall of the hopper body (51) and the upper edge of the feed end of the screening device (2). The inner wall of the hopper body (51) is wrapped with an electric heating tube (52). A stirrer (53) is horizontally mounted in the middle of the inner wall of the hopper body (51), and its driving end is fixedly mounted on the outer wall of the hopper body (51).

3. A river sand collecting and sieving device as claimed in claim 2, wherein, The stirrer (53) includes: A servo motor (531) is fixedly mounted in the middle of the outer wall of the hopper body (51), and the output end of the servo motor (531) passes through the adjacent outer wall of the hopper body (51). The output end of the servo motor (531) is fixedly connected to one end of a round rod (532), and the other end of the round rod (532) is rotatably connected to the inner wall of the hopper body (51); The outer wall of the round rod (532) is uniformly fixed with stirring blades (533).

4. A river sand collecting and sieving device as claimed in claim 2, wherein, The material dispersion feed pipe (9) includes: An inclined discharge pipe (91) is fixedly connected at its upper end to the discharge port of the hopper body (51); The inner diameter of the inclined discharge pipe (91) gradually decreases from top to bottom; A material distribution net (92) is horizontally fixed inside the inclined discharge pipe (91).

5. A river sand collecting and sieving device as claimed in claim 1, wherein, The screening device (2) includes: The storage tank (21) has an opening on the side away from the inclined conveyor belt (1); The upper end of the inner wall of the storage tank (21) is horizontally fixed with a first filter screen (22). A second filter (24) is horizontally fixedly assembled at the lower end of the inner wall of the storage tank (21). The mesh size of the second filter (24) is smaller than that of the first filter (22); The first filter (22) and the second filter (24) are inclined downward at the end near the opening of the receiving tank (21).

6. A river sand collecting and sieving device as claimed in claim 5, wherein, The first filter screen (22) has a first extension plate (23) fixedly connected to its inclined lower end; The second filter screen (24) has a second extension plate (25) fixedly connected to its inclined lower end; The length of the first extension plate (23) is greater than the length of the second extension plate (25).

7. A river sand collecting and sieving device as claimed in claim 5, wherein, The bottom surface of the inner cavity of the storage tank (21) is fixedly fitted with a ramp (26), which is inclined downward at the end near the opening of the storage tank (21).

8. A river sand collecting and sieving device as claimed in claim 1, wherein, The screening device (2) has elastic rubber blocks (3) fixedly installed at the four corners of its bottom surface, with their lower ends resting against the ground.

9. A river sand collecting and sieving device as claimed in claim 1, wherein, The inclined conveyor belt (1) has side guards (6) on both the front and rear sides of its upper edge, and longitudinal baffles (11) are uniformly fixedly mounted on the outer wall of the belt along the length direction. The longitudinal baffle (11) slides against the inner wall of the side guard (6) on the same side at both ends.

10. A river sand collecting and sieving device as claimed in claim 1, wherein, The support frame (7) includes: Two long legs (71) are distributed in parallel front and rear, and the upper ends of the two long legs (71) are fixedly assembled on the same side of the upper end of the outer wall of the inclined conveyor belt (1). Two short legs (72) are distributed in parallel front and rear, and the upper ends of the two short legs (72) are fixedly assembled on the same side of the lower end of the outer wall of the inclined conveyor belt (1); The lower ends of both the long leg (71) and the short leg (72) rest against the ground.

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