Sand screening equipment for concrete processing
By introducing a dust suppression mechanism into the concrete processing equipment and using a water mist curtain to reduce dust dispersion, the problem of dust pollution in sand screening operations has been solved, achieving an environmentally friendly and efficient sand screening effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HUJIA HOUSING IND CO LTD
- Filing Date
- 2025-03-26
- Publication Date
- 2026-04-21
AI Technical Summary
In existing concrete processing sand screening operations, the sand and gravel contain a large amount of dust, which causes a large amount of dust to float in the air, affecting the surrounding environment and people's health.
A sand screening device was designed, which includes a support frame, a conveyor, a screen bed, and a dust suppression mechanism. By forming a water mist curtain around the screen bed and using atomizing nozzles to spray water mist to reduce dust dispersion, the device combines a vibrating motor to screen sand and gravel.
It effectively reduces the impact of dust on the external environment during sand screening, reduces the respiratory health risks to people in the surrounding area, and improves the environmental friendliness of sand screening operations.
Smart Images
Figure CN224142772U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete processing technology, specifically to a sand screening device for concrete processing. Background Technology
[0002] Concrete is widely used in many fields such as construction, transportation, and water conservancy. It has the characteristics of high strength, good durability, and strong plasticity. Concrete generally contains a certain amount of sand and gravel to increase its strength and stability. During the concrete processing, the sand and gravel need to be screened to ensure that their particle size distribution is reasonable, so as to improve the density of the concrete, save cement, improve the workability of the concrete, and thus ensure the quality and safety of the project.
[0003] In existing concrete processing sand screening operations, the sand and gravel contain a large amount of dust, which causes a large amount of dust to float in the air of the sand screening environment, causing a significant impact on the surrounding environment and personnel. Therefore, a sand screening device for concrete processing is proposed. Summary of the Invention
[0004] To address the problems in existing technologies, this utility model provides a sand screening device for concrete processing, which provides a low-dust sand screening mechanism for screening sand and gravel in concrete processing. This greatly reduces the impact of the raw sand and gravel used in concrete on the surrounding air quality during large particle screening. By forming a water mist curtain around the screen bed through a dust suppression mechanism, the amount of dust generated during the vibrating screening process is greatly reduced and dispersed into the external environment, thereby ensuring the environmental friendliness of concrete sand screening operations and reducing the impact on the respiratory health of surrounding personnel.
[0005] The technical solution adopted by this utility model to solve its technical problem is a sand screening equipment for concrete processing, including a support frame, a conveyor, a screen bed and a dust suppression mechanism. The conveyor is installed at the bottom of the support frame, the screen bed is located at the top of the conveyor, the two sides of the screen bed are installed to the top of the support frame by spring support members, a vibration motor is installed on one side of the screen bed, and the dust suppression mechanism is set at the top of the screen bed.
[0006] By adopting the above technical solution, a low-dust sand screening mechanism is provided for the screening of sand and gravel in concrete processing through a component consisting of a support frame, a conveyor, a screen bed, and a dust suppression mechanism. This greatly reduces the impact of the raw sand and gravel used in concrete on the surrounding air quality during the screening of large particles.
[0007] Specifically, the dust suppression mechanism includes a support frame, a dust cover, a first water pipe, a second water pipe, and an atomizing nozzle. Support legs are connected to both sides of the bottom of the support frame, and the bottom of the support legs is connected to the support frame. An observation port is formed by an opening in the middle of the support frame. The dust cover is placed on the observation port and is rotatably connected to the support frame by a hinge. A frame-shaped support is provided on the inner periphery of the observation port to support the dust cover.
[0008] By adopting the above technical solution and setting up the dust suppression mechanism, a water mist curtain can be formed around the screen bed, which greatly reduces the amount of dust generated during the vibrating screening process that is dispersed into the external environment, thereby ensuring the environmental friendliness of concrete sand screening operations and reducing the impact on the respiratory health of surrounding personnel.
[0009] Specifically, the first water pipe is installed on both sides of the bottom of the dust cover by clamps, and the second water pipe is installed on both ends of the bottom of the dust cover by clamps. The first water pipe and the second water pipe are connected in series. The atomizing nozzle is installed at equal distances along the bottom of the first water pipe and the second water pipe. A water pump is installed on one side of the bottom of the support frame, and the output end of the water pump is connected to the first water pipe.
[0010] By adopting the above technical solution and setting up a dust cover, dust can be reduced from drifting from above the screen bed.
[0011] Specifically, the dust cover has a feed inlet at one end, and a feed hopper is provided at the top of the feed inlet.
[0012] By adopting the above technical solution and setting up the feed hopper, it is convenient for personnel to put the concrete sand and gravel that need to be screened onto the screen bed.
[0013] Specifically, a wheel is installed at one end of the bottom of the support frame.
[0014] The outstanding and beneficial technical effects of this utility model compared to the prior art are:
[0015] This system, comprised of a support frame, conveyor, screen bed, and dust suppression mechanism, provides a low-dust sand screening system for concrete processing. This significantly reduces the impact on surrounding air quality during the screening of large-particle raw materials for concrete. The dust suppression mechanism creates a water mist curtain around the screen bed, greatly reducing the amount of dust generated during screening and thus ensuring the environmental friendliness of concrete sand screening operations. It also reduces the impact on the respiratory health of surrounding personnel and solves the problem of excessive dust in existing concrete sand screening operations, which causes significant environmental and personnel impacts. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] Figure 1 This is a schematic diagram of the overall design of this utility model;
[0018] Figure 2 This is a schematic diagram showing the dust cover of this utility model when opened;
[0019] Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle;
[0020] Figure 4 For the present utility model Figure 2 Enlarged view of point B in the middle;
[0021] In the diagram: support frame 1, wheel 11, conveyor 2, screen bed 3, spring support 31, vibrating motor 32, dust suppression mechanism 4, support frame 41, observation port 411, frame-type support 412, support leg 42, dust cover 43, first water pipe 44, second water pipe 45, atomizing nozzle 46, feed inlet 47, feed hopper 48, water pump 5. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] like Figure 1-4 As shown, the present invention provides a sand screening device for concrete processing, comprising a support frame 1, a conveyor 2, a screen bed 3, and a dust suppression mechanism 4. The conveyor 2 is installed at the bottom of the support frame 1, the screen bed 3 is located at the top of the conveyor 2, and the two sides of the screen bed 3 are installed to the top of the support frame 1 by spring support members 31. A vibration motor 32 is installed on one side of the screen bed 3, and the dust suppression mechanism 4 is located at the top of the screen bed 3.
[0024] In use, the support frame 1, conveyor 2, screen bed 3 and dust suppression mechanism 4 provide a low-dust sand screening mechanism for screening sand and gravel in concrete processing, which greatly reduces the impact of sand and gravel used for concrete on the surrounding air quality during large particle screening.
[0025] This utility model also includes a dust suppression mechanism 4 comprising a support frame 41, a dust cover 43, a first water pipe 44, a second water pipe 45, and an atomizing nozzle 46. Support legs 42 are connected to both sides of the bottom of the support frame 41. The bottom of the support legs 42 is connected to the support frame 1. An observation port 411 is formed by an opening in the middle of the support frame 41. The dust cover 43 is placed on the observation port 411 and is rotatably connected to the support frame 41 by a hinge. A frame-shaped support platform 412 for supporting the dust cover 43 is provided on the inner periphery of the observation port 411.
[0026] When in use, the dust suppression mechanism 4 can form a water mist curtain around the screen bed 3, which greatly reduces the amount of dust generated during the screening process and disperses it into the external environment, thereby ensuring the environmental friendliness of the concrete sand screening operation and reducing the impact on the respiratory health of surrounding personnel.
[0027] The present invention also includes that the first water pipe 44 is installed on both sides of the bottom of the dust cover plate 43 by clamps, and the second water pipe 45 is installed on both ends of the bottom of the dust cover plate 43 by clamps. The first water pipe 44 and the second water pipe 45 are connected in series. The atomizing nozzle 46 is installed at equal distances along the bottom of the first water pipe 44 and the second water pipe 45. A water pump 5 is installed on one side of the bottom of the support frame 1, and the output end of the water pump 5 is connected to the first water pipe 44.
[0028] When in use, the dust cover 43 reduces the amount of dust that can drift from above the screen bed 3.
[0029] The present invention also includes a dust cover plate 43 having a feed inlet 47 at one end, and a feed hopper 48 being provided at the top of the feed inlet 47.
[0030] When in use, the feed hopper 48 makes it easy for personnel to put the concrete sand and gravel that needs to be screened onto the screen bed 3.
[0031] This utility model also includes a wheel 11 installed at one bottom end of the support frame 1.
[0032] In use, the support frame 1 is moved to the work site, so that the output end of the conveyor 2 is located above the sand and gravel collection container or the concrete mixing equipment. The power supply components around the work site provide power to the electrical components in this application, and the water supply pipeline around the site is connected to the water inlet of the water pump 5. During sand screening, the vibration motor 32 of the conveyor 2 and the water pump 5 are turned on. The water pump 5 supplies water to the first water pipe 44 and the second water pipe 45, so that the water source is sprayed out from the atomizing nozzle 46 along the outer periphery of the top of the screen bed 3, so that a water atomization barrier is formed on the outer periphery of the top of the screen bed 3, thereby reducing the amount of dust scattered to the outside during sand screening. The sand and gravel to be screened are put into the screen bed 3 through the feed hopper 48. The vibration motor 32 drives the screen bed 3 to vibrate, so that the qualified sand and gravel fall onto the conveyor 2 and are sent away, while the larger and unqualified sand and gravel rolls off the tail end of the screen bed 3 and is discharged, thus realizing the sand screening operation.
[0033] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0034] Furthermore, 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 technical features indicated. In this utility model, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-on," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection.
[0035] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A sand screening apparatus for concrete processing, characterized by, The system includes a support frame (1), a conveyor (2), a screen bed (3), and a dust suppression mechanism (4). The conveyor (2) is installed at the bottom of the support frame (1), the screen bed (3) is located at the top of the conveyor (2), and the two sides of the screen bed (3) are installed on the top sides of the support frame (1) through spring support members (31). A vibration motor (32) is installed on one side of the screen bed (3), and the dust suppression mechanism (4) is located at the top of the screen bed (3).
2. The sand screening apparatus for concrete processing according to claim 1, wherein The dust suppression mechanism (4) includes a support frame (41), a dust cover (43), a first water pipe (44), a second water pipe (45), and an atomizing nozzle (46). Support legs (42) are connected to both sides of the bottom of the support frame (41). The bottom of the support legs (42) is connected to the support frame (1). An observation port (411) is formed by an opening in the middle of the support frame (41). The dust cover (43) is placed on the observation port (411) and is rotatably connected to the support frame (41) by a hinge.
3. A sand screening apparatus for use in processing concrete as defined in claim 2, wherein The first water pipe (44) is installed on both sides of the bottom of the dust cover (43) by clamps, and the second water pipe (45) is installed on both ends of the bottom of the dust cover (43) by clamps. The first water pipe (44) and the second water pipe (45) are connected in series. The atomizing nozzle (46) is installed at equal distances along the bottom of the first water pipe (44) and the second water pipe (45). A water pump (5) is installed on one side of the bottom of the support frame (1). The output end of the water pump (5) is connected to the first water pipe (44).
4. The sand screening apparatus for concrete processing according to claim 3, wherein The dust cover (43) has a feed inlet (47) at one end, and a feed hopper (48) is provided on the top of the feed inlet (47).
5. A sand screening apparatus for use in the processing of concrete as defined in claim 4, wherein, The support frame (1) has a wheel (11) installed at one end of its bottom.
6. A sand screening apparatus for use in processing concrete as defined in claim 5, wherein The observation port (411) is provided with a frame-type support (412) for supporting the dust cover (43) on its inner periphery.