Sand screening equipment for sand materials
Through the combination of high-pressure exhaust fan and cyclone separator, sand material screening is used to use wind power, which solves the problems of screen wear and frequent replacement in the prior art, and realizes efficient and accurate sand material screening and reduces costs and operations. Difficulty.
Patent Information
- Application Number
- CN202420987395.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-09
AI Technical Summary
During the use of existing sand screening equipment, the mesh wears or squeezes due to sand collision, resulting in a deviation in the size of the sand material, reducing screening efficiency, and frequently changing the screening mesh increases cost and operation difficulty, especially in Replacing the screen when it is necessary to adjust the size of the sand material is time-consuming and laborious.
High-pressure exhaust fan is used to drive high-speed airflow through the screening barrel, and the sand is screened with wind power. Combined with a cyclone separator and funnel-type support net, it avoids physical collisions with sand and reduces the use and maintenance needs of screens. , and screen sand material of different weights and sizes through different wind magnitudes, simplifying operation.
It improves the efficiency and accuracy of sand material screening, reduces the use and maintenance costs of equipment, simplifies the operation process, avoids frequent screening, and realizes flexible screening of sand material of different sizes.
Smart Images
Figure CN222240787U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building material processing, in particular to a sand screening device for sand materials. Background Art
[0002] Construction sand is an indispensable building material. It is mainly used in the production of concrete, mortar, bricks and other building materials. In concrete, sand is one of the important aggregates. It can fill the gaps between cement and aggregates to increase the density and strength of concrete. In mortar, sand can be mixed with cement and an appropriate amount of water to form a bonding material for masonry bricks, stones, etc. In addition, sand can also be used in road paving and glass manufacturing. In construction projects, choosing sand with appropriate particle size, type, and characteristics is particularly important for project quality and cost control. In the process of selecting sand, sand screening equipment is needed to screen the sand to select sand with appropriate particle size to improve construction efficiency. However, it still has the following disadvantages in actual use:
[0003] The utility model with the publication number CN214347924U discloses a sand screening device for water conservancy engineering construction. A fixed frame is provided on the top of the sand screening machine, a sand inlet pipe is provided on one side wall of the fixed frame, circular plates are provided on both sides of the fixed frame, connecting rods are fixedly connected between the circular plates, a rotating shaft is fixedly connected to the inner surface of the connecting rod, a rotating cone block is movably connected to the upper end of the rotating shaft, a rubber strip is provided on the surface of the rotating cone block, a first screen is fixedly connected between the connecting rods, a bearing is provided on one side of the circular plate close to the sand inlet pipe, and the sand screening device usually needs to use a screen to screen the sand material, and the sand and gravel with composite requirements are discharged through the screen through the collision of the sand material and the screen. In actual use, the screen often needs to be equipped with a corresponding cleaning structure to prevent the sand material from being blocked in the mesh of the screen, resulting in a decrease in screening efficiency. However, the sand material collides and blocks the mesh of the screen for many times, which will cause the mesh to become larger due to wear or extrusion, resulting in a certain deviation in the size of the screened sand material, reducing the screening efficiency, and requiring the screen to be replaced in time, increasing production expenses;
[0004] When sand screening equipment performs multi-stage screening of sand, it is often necessary to use multiple screens with different apertures. Therefore, the size of sand that can be screened by a sand screening equipment is relatively fixed. When the size of the screened sand needs to be adjusted, the screen needs to be replaced, which is time-consuming and labor-intensive. Utility Model Content
[0005] The utility model aims to provide a sand screening device for sand material. Through a screening barrel, a slag discharge pipe and a cyclone separator, the utility model solves the problem that when the sand screening device is actually used, the collision between the sand material and the screen will cause the mesh size of the screen to increase, and the screen needs to be replaced in time to avoid unqualified size of the screened sand material, which increases expenses. The screen can only screen sand material of a fixed size. When the size of the screened sand material needs to be adjusted, the screen needs to be replaced, which is time-consuming and laborious.
[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:
[0007] The utility model is a sand screening device for sand material, comprising a screening barrel, a slag discharge pipe and a cyclone separator, a high-pressure exhaust fan is arranged on one side of the bottom of the screening barrel, a slag discharge pipe is penetrated and connected at the bottom of the outer peripheral surface of the screening barrel, a funnel-shaped support net is penetrated and connected at the top of the slag discharge pipe, a cyclone separator is arranged on one side of the screening barrel, and a collecting hopper is penetrated and welded at the bottom of the cyclone separator;
[0008] The high-pressure exhaust fan can drive high-speed airflow into the screening barrel, and the wind force can make the sand move upward with the air. By controlling the wind force, sand of different weights can be screened. The sand of the same material has the same density, and the sand of the same weight has a similar size. Sand screening by wind forces of different sizes not only does not require the use of a screen, avoiding damage and replacement of the screen, reducing costs, but also does not need to replace the screen according to the size of the sand to be screened, improving the convenience of use. The sand that is not needed in the end can be discharged through the discharge pipe to avoid affecting the next sand screening. The funnel-shaped support net can support the sand, and after the sand screening is completed, the remaining sand can fall into the discharge pipe along the funnel-shaped support net under the action of gravity. The cyclone separator can separate the sand and air, so that the screened sand falls into the collection hopper for collection, which is convenient for discharging. The structure is simple and the operation is convenient.
[0009] Furthermore, an air inlet pipe is inserted through one end of the outer peripheral surface of the high-pressure exhaust fan, a connecting pipe is inserted through one end of the high-pressure exhaust fan, the other end of the connecting pipe is inserted through the bottom of the screening barrel, a feed hopper is inserted through the top of the outer peripheral surface of the screening barrel, and a one-way valve is inserted through the bottom of the outer peripheral surface of the feed hopper;
[0010] The outside air can be quickly drawn into the screening barrel by the high-pressure exhaust fan, and the air flowing from bottom to top can drive the sand to move upward, and the sand with a gravity less than the wind force can be screened out by the wind force. There is no need to use a screen, which reduces the use and maintenance costs of the equipment. Sand of different weights can be screened by different wind forces, and sand of different sizes can be further screened. There is no need to replace the screen, etc. The operation is simple and convenient, and the one-way valve can prevent the flowing air from being blown out through the feed hopper.
[0011] Furthermore, a first solenoid valve is inserted through the top of the outer peripheral surface of the slag discharge pipe, a porous plate is fixedly connected to the outer peripheral surface of the slag discharge pipe, and the outer peripheral surface of the porous plate and the outer top of the funnel-shaped support net are both fixedly connected to the inner wall of the screening barrel;
[0012] The air entering the screening barrel is diverted through the porous plate, so that the air flows upward evenly in the screening barrel. The funnel-shaped support net can support the sand and allow the air to pass through to screen the sand. After the screening is completed, the residual sand can fall into the slag discharge pipe along the funnel-shaped support net under the action of gravity and be discharged through the slag discharge pipe.
[0013] Furthermore, a feed pipe is welded through the top of the outer peripheral surface of the cyclone separator, the other end of the feed pipe is penetrated and clamped with a sealing top cover, a stirring motor is clamped and fixed on the top of the sealing top cover, a stirring rod is rotatably clamped on the bottom of the stirring motor, a stirring blade is welded and fixed on the bottom of the outer peripheral surface of the stirring rod, the stirring rod is penetrated and inserted into the top of the sealing top cover, and the stirring blade is attached to the inner wall of the funnel-shaped support net;
[0014] The stirring motor can drive the stirring blades to rotate, stirring the sand and moving it, thus preventing the heavier sand from squeezing the lighter sand when the wind is weak, making it difficult for the sand of the required size to move with the airflow, thereby ensuring the screening efficiency of the sand.
[0015] Furthermore, an exhaust pipe is welded through the top of the cyclone separator, a support frame is fixedly connected to the outer peripheral surface of the collecting hopper, a discharge pipe is welded through the bottom of the collecting hopper, and a second solenoid valve is connected to the outer peripheral surface of the discharge pipe;
[0016] The sand and air that enter the cyclone separator with the airflow are separated by the cyclone separator, the air is discharged through the exhaust pipe, and the sand falls into the collection hopper under the action of gravity for collection. After the sand of a certain size is collected, the sand is discharged by opening the discharge pipe. The operation is simple and easy to use.
[0017] The utility model has the following beneficial effects:
[0018] The utility model solves the problem that sand screening equipment usually needs to use a screen to screen sand by arranging a screening barrel and a slag discharge pipe. The sand and gravel that meet the composite requirements are discharged through the screen through the collision between the sand and the screen. In actual use, the screen often needs to be equipped with a corresponding cleaning structure to prevent the sand from being blocked in the mesh of the screen, resulting in a decrease in screening efficiency. However, if the sand collides and is blocked in the mesh of the screen multiple times, the mesh will become larger due to wear or extrusion, resulting in a certain deviation in the size of the screened sand, thereby reducing the screening efficiency and requiring the screen to be replaced in time, thereby increasing production expenses. The high-pressure exhaust fan can quickly draw outside air into the screening barrel, and the air flowing from bottom to top can drive the sand to move upward, and the sand whose gravity is less than the wind force is screened out by wind force. There is no need to use a screen, thereby reducing the use and maintenance expenses of the equipment.
[0019] The utility model provides a screening barrel and a cyclone separator, thereby solving the problem that when a sand screening device performs multi-stage screening of sand, it is often necessary to use multiple screens with different apertures. As a result, the size of sand that can be screened by a sand screening device is relatively fixed. When the size of the screened sand needs to be adjusted, the screen needs to be replaced, which is a time-consuming and laborious operation. The wind force can be adjusted by adjusting the power of the high-pressure exhaust fan. Wind forces of different sizes can drive sands of different gravities, which further drive sands of different sizes, so that the sand enters the cyclone separator with the air, and sand that meets the size is collected on the inside of the cyclone separator. Sands of different sizes can be screened without replacing the screen, thereby improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural effect diagram of the utility model;
[0021] Figure 2 This is a structural diagram of the screening barrel and the high-pressure exhaust fan of the utility model;
[0022] Figure 3 This is a structural diagram of the slag discharge pipe of the utility model;
[0023] Figure 4 It is the structural diagram of the cyclone separator of the utility model.
[0024] Reference numerals:
[0025] 1. Screening barrel; 101. High-pressure exhaust fan; 102. Air inlet pipe; 103. Connecting pipe; 104. Feed hopper; 105. One-way valve; 2. Slag discharge pipe; 201. First solenoid valve; 202. Perforated plate; 203. Funnel-shaped support net; 3. Cyclone separator; 301. Sealing top cover; 302. Stirring motor; 303. Stirring rod; 304. Stirring blade; 305. Feeding pipe; 306. Exhaust pipe; 307. Collecting hopper; 308. Support frame; 309. Discharging pipe; 310. Second solenoid valve. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0027] See also Figure 1-4 As shown, the utility model is a sand screening device for sand material, comprising a screening barrel 1, a slag discharge pipe 2 and a cyclone separator 3. A high-pressure exhaust fan 101 is arranged on one side of the bottom of the screening barrel 1. The slag discharge pipe 2 is penetrated and connected at the bottom of the outer peripheral surface of the screening barrel 1. A funnel-shaped support net 203 is penetrated and connected at the top of the slag discharge pipe 2. A cyclone separator 3 is arranged on one side of the screening barrel 1. A collecting hopper 307 is penetrated and welded at the bottom of the cyclone separator 3.
[0028] A large amount of sand is poured into the feed hopper 104, and the sand falls to the inside of the screening barrel 1 under the action of gravity. According to the fineness range of the sand to be screened, the high-pressure exhaust fan 101 is controlled to be adjusted to the maximum power that can drive the sand smaller than the required size, and the sand is moved upward with the upward airflow, so that the sand that does not meet the requirements enters the inside of the cyclone separator 3 with the airflow and is separated by the cyclone separator 3, so that the sand falls into the collecting hopper 307, and the discharge pipe 309 is opened to discharge the sand that does not meet the requirements, and the discharge pipe 309 is closed and the high-pressure exhaust fan 101 is controlled to be adjusted to the minimum power that can drive the sand larger than the required size. The sand that meets the requirements enters the cyclone separator 3 with the airflow for separation and falls into the collecting hopper 307. After the screening is completed, the discharge pipe 309 is opened to discharge the sand, and when the slag discharge pipe 2 is opened, the residual sand in the funnel-shaped support net 203 is discharged through the slag discharge pipe 2.
[0029] Among them Figure 1-3 As shown, an air inlet pipe 102 is inserted through one end of the outer circumference of the high-pressure exhaust fan 101 and is clamped thereon, a connecting pipe 103 is inserted through one end of the high-pressure exhaust fan 101 and is clamped thereon, the other end of the connecting pipe 103 is inserted through and is clamped at the bottom of the screening barrel 1, a feed hopper 104 is inserted through the top of the outer circumference of the screening barrel 1 and is clamped thereon, a one-way valve 105 is inserted through the bottom of the outer circumference of the feed hopper 104 and is clamped thereon, a first solenoid valve 201 is inserted through the top of the outer circumference of the slag discharge pipe 2 and is clamped and fixed to a porous plate 202 on the outer circumference of the slag discharge pipe 2, and the outer circumference of the porous plate 202 and the outer top of the funnel-shaped support net 203 are both clamped and fixed to the inner wall of the screening barrel 1;
[0030] A large amount of sand is poured into the feed hopper 104. The sand falls to the inner side of the screening barrel 1 under the action of gravity, and falls to the upper side of the funnel-shaped support net 203. The high-pressure exhaust fan 101 is started to extract air through the air inlet pipe 102, so that the high-speed flowing air enters the screening barrel 1 through the connecting pipe 103. The airflow is diverted by the porous plate 202 to make the air flow upward evenly. The air drives the sand to move upward through the funnel-shaped support net 203 to screen the sand. After the screening is completed, the first solenoid valve 201 is opened, and the remaining sand in the funnel-shaped support net 203 is discharged through the slag discharge pipe 2 under the action of gravity.
[0031] As shown in the figure, a feed pipe 305 is welded through the top of the outer peripheral surface of the cyclone separator 3, and the other end of the feed pipe 305 is clamped with a sealing top cover 301, a stirring motor 302 is clamped and fixed on the top of the sealing top cover 301, and a stirring rod 303 is rotatably clamped at the bottom of the stirring motor 302, and a stirring blade 304 is welded and fixed at the bottom of the outer peripheral surface of the stirring rod 303, the stirring rod 303 is inserted through the top of the sealing top cover 301, and the stirring blade 304 is attached to the inner wall of the funnel-shaped support net 203, an exhaust pipe 306 is welded through the top of the cyclone separator 3, a support frame 308 is clamped and fixed on the outer peripheral surface of the collecting hopper 307, a discharge pipe 309 is welded through the bottom of the collecting hopper 307, and a second solenoid valve 310 is clamped through the outer peripheral surface of the discharge pipe 309;
[0032] When the sand is screened, the stirring motor 302 drives the stirring rod 303 and the stirring blade 304 to rotate, stirs the sand to make it move, and moves the sand buried at the bottom to the upper side, so that the sand that meets the requirements can quickly pass through the feed pipe 305 into the cyclone separator 3 with the airflow, and the sand and air are separated by the cyclone separator 3, so that the sand falls into the collecting hopper 307 under the action of gravity. After the screening is completed, the second solenoid valve 310 is opened to discharge the sand through the discharge pipe 309.
[0033] The specific working principle of the utility model is as follows: a large amount of sand is poured into the feed hopper 104, and the sand falls to the inner side of the screening barrel 1 under the action of gravity, and falls to the upper side of the funnel-shaped support net 203, and the stirring motor 302 is started to drive the stirring rod 303 and the stirring blade 304 to rotate, so as to stir the sand to move the sand, and move the sand buried on the bottom side to the upper side, and according to the fineness range of the sand to be screened, the high-pressure exhaust fan 101 is controlled to be adjusted to the maximum power that can drive the sand smaller than the required size, and the air enters the screening barrel 1 through the air intake pipe 102 and the connecting pipe 103, and the airflow is diverted through the porous plate 202 to make the air flow upward evenly, and the air drives the sand to move upward through the funnel-shaped support net 203, so that the sand that does not meet the requirements is moved. Fine sand enters the inner side of the cyclone separator 3 along with the air flow through the feed pipe 305, and the sand and air are separated by the cyclone separator 3, so that the sand falls into the collecting hopper 307 under the action of gravity. After screening, the second solenoid valve 310 is opened to discharge the sand that does not meet the requirements through the discharge pipe 309, the discharge pipe 309 is closed and the high-pressure exhaust fan 101 is controlled to adjust to the minimum power that can drive the sand larger than the required size, and the sand that meets the requirements enters the cyclone separator with the air flow for separation, and the sand falls into the collecting hopper 307 under the action of gravity. After the screening is completed, the second solenoid valve 310 is opened to discharge the sand, and the first solenoid valve 201 is opened, and the residual sand in the funnel-shaped support net 203 is discharged through the slag discharge pipe 2 under the action of gravity.
[0034] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.
Claims
1. A sand screening device, comprising a screening bucket (1), a slag discharge pipe (2) and a cyclone separator (3), characterized in that: A high-pressure exhaust fan (101) is provided on one side of the bottom of the screening barrel (1); a slag discharge pipe (2) is inserted and clamped through the bottom of the outer peripheral surface of the screening barrel (1); a funnel-shaped support net (203) is inserted and clamped through the top of the slag discharge pipe (2); a cyclone separator (3) is provided on one side of the screening barrel (1); and a collecting hopper (307) is welded through the bottom of the cyclone separator (3).
2. The sand screening device according to claim 1, characterized in that: An air inlet pipe (102) is inserted and clamped through one end of the outer peripheral surface of the high-pressure exhaust fan (101), a connecting pipe (103) is inserted and clamped through one end of the high-pressure exhaust fan (101), the other end of the connecting pipe (103) is inserted and clamped through the bottom of the screening barrel (1), a feed hopper (104) is inserted and clamped through the top of the outer peripheral surface of the screening barrel (1), and a one-way valve (105) is inserted and clamped through the bottom of the outer peripheral surface of the feed hopper (104).
3. The sand screening device according to claim 1, characterized in that: A first solenoid valve (201) is inserted through the top of the outer peripheral surface of the slag discharge pipe (2), a porous plate (202) is fixedly connected to the outer peripheral surface of the slag discharge pipe (2), and the outer peripheral surface of the porous plate (202) and the outer top of the funnel-shaped support net (203) are both fixedly connected to the inner wall of the screening barrel (1).
4. The sand screening device according to claim 1, characterized in that: A material passage pipe (305) is welded through the top of the outer peripheral surface of the cyclone separator (3); the other end of the material passage pipe (305) is penetrated and clamped with a sealing top cover (301); a stirring motor (302) is clamped and fixed to the top of the sealing top cover (301); a stirring rod (303) is rotatably clamped at the bottom of the stirring motor (302); a stirring blade (304) is welded and fixed to the bottom of the outer peripheral surface of the stirring rod (303); the stirring rod (303) is penetrated and inserted into the top of the sealing top cover (301); and the stirring blade (304) is attached to the inner wall of the funnel-shaped support net (203).
5. The sand screening device according to claim 1, characterized in that: An exhaust pipe (306) is welded through the top of the cyclone separator (3), a support frame (308) is clamped and fixed to the outer peripheral surface of the collecting hopper (307), a discharge pipe (309) is welded through the bottom of the collecting hopper (307), and a second solenoid valve (310) is clamped and fixed to the outer peripheral surface of the discharge pipe (309).