A wet-mixed mortar dustproof sand screening device

Abstract

The utility model discloses a kind of wet-mixing sand mortar dustproof sand screening devices, belong to building material screening equipment technical field.The device is based on support frame, and fixedly installed inclined collection groove thereon, and screen cylinder is rotatably arranged on the collection groove, and the screen cylinder is protected by the shell wrapped thereon.By motor drive main shaft, screen cylinder is driven to rotate by connecting rod to screen wet-mixing sand mortar, and the sand and gravel after screening is sent out by the collection groove by conveyor belt.A guide pipe is provided on the shell, and the inside is formed into negative pressure to collect dust by the help of fan, and the filter screen prevents sand and gravel from entering the guide pipe.The beating belt on the auxiliary shaft beats the screen cylinder and the filter screen, to prevent the screen hole and filter hole from being blocked.The device realizes wet-mixing sand mortar screening while effectively preventing dust, to ensure efficient screening work.

Description

Technical Field

[0001] This application relates to the technical field of building material screening equipment, specifically to a dust-proof sand screening device for wet-mixed mortar. Background Technology

[0002] In construction, sand screening of wet-mixed mortar is a crucial step in ensuring mortar quality. Traditional sand screening equipment for wet-mixed mortar has several drawbacks. Firstly, even wet-mixed sand and gravel will generate dust during screening. If this dust is not properly managed, it will spread into the surrounding environment, polluting the air and potentially harming the health of operators. Secondly, the sieve openings of the screen cylinder and the filter screen used for dust collection are easily clogged by sand and gravel, leading to reduced screening efficiency and poor dust collection, thus affecting the continuity and efficiency of the entire sand screening process.

[0003] Therefore, there is a need for a wet-mixed mortar screening device that can effectively solve the problems of dust pollution and screen clogging, so as to improve the quality and efficiency of sand screening and improve the construction environment. Summary of the Invention

[0004] In response to the above-mentioned technical problems, this application solves the problems that sand and gravel easily generate dust and pollute the environment during the screening process of wet-mixed mortar, and that the sieve holes and filter holes are easily clogged, affecting screening efficiency and quality.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a dust-proof sand screening device for wet-mixed mortar, comprising a support frame, a collection trough fixedly installed on the support frame, the collection trough being inclined, a screen cylinder rotatably installed on the collection trough, the screen cylinder having screen holes, an outer shell fixedly installed on the collection trough, the outer shell enclosing the screen cylinder, a secondary shaft rotatably installed on the outer shell, multiple sets of beating belts fixedly installed on the secondary shaft, a filter screen and a guide pipe fixedly installed on the outer shell, a through groove provided on the collection trough, and a conveyor belt installed on the through groove.

[0006] To better realize this application, the support frame is further provided with a main shaft rotatably mounted on it, and multiple connecting rods are fixedly mounted on the main shaft, with the connecting rods being fixedly connected to the inner wall of the outer shell.

[0007] To better realize this application, a motor is further fixedly mounted on the support frame, and the output end of the motor is fixedly connected to the main shaft.

[0008] To better realize this application, a rear cover plate is further fixedly provided on one end of the outer casing near the motor. The rear cover plate is fixedly connected to the outer casing and the collection tank, and is rotatably connected to the main shaft and the screen cylinder. A feed inlet is provided on the rear cover plate, and a feed hopper is fixedly installed on the feed inlet.

[0009] To better realize this application, a front cover plate is further fixedly provided at the end of the support frame away from the motor. The front cover plate is rotatably connected to the screen cylinder and the main shaft. The front cover plate is fixedly connected to the outer shell and the collection trough. An arc-shaped opening is provided at the end of the rear cover plate near the collection trough. The arc-shaped opening is used for discharge of material after screening by the outer shell.

[0010] To better realize this application, a fan is further fixedly installed on the support frame, and the air intake of the fan is connected to the guide pipe through a pipe.

[0011] The technical solution provided in this application has the following advantages compared with the prior art:

[0012] 1. This application uses an outer shell to enclose the screen cylinder and utilizes a guide pipe and a fan to create negative pressure to collect dust, thereby achieving effective collection and treatment of dust during the screening process of wet-mixed mortar, preventing dust from spreading and polluting the environment, and ensuring a clean working environment.

[0013] 2: This application sets a beating belt on the secondary shaft. When the screen cylinder rotates, it drives the secondary shaft to rotate, so that the beating belt beats the screen cylinder and the filter screen in sequence. This prevents the screen holes of the screen cylinder and the filter screen from being blocked by sand and gravel, and ensures that the screening and dust collection work is carried out continuously and efficiently.

[0014] 3: This application achieves control over the rotation speed of the screen cylinder and the main shaft by setting a differential between the motor and the main shaft, avoiding the impact of excessive rotation speed on the screening effect, and preventing sand and gravel from clogging the filter screen due to excessive inertia, thereby improving the screening quality.

[0015] 4: This application achieves smooth feeding of wet-mixed mortar and orderly discharge of sand and gravel after screening by setting up a feeding hopper, a rear cover plate and a front cover plate, while avoiding reverse flow of sand and gravel, and ensuring the stability and continuity of equipment operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this application;

[0017] Figure 2 This is a structural schematic diagram of the front cover plate of this application;

[0018] Figure 3 This is a cross-sectional view of the sieve cylinder of this application;

[0019] Figure 4 This is a schematic diagram of the structure of the beater belt in this application;

[0020] Figure 5 This is a schematic diagram of the structure of the filter screen in this application;

[0021] Figure 6 This is a cross-sectional view of the sieve cylinder of this application.

[0022] In the diagram: 101-Support frame; 102-Collection trough; 103-Outer shell; 104-Screen cylinder; 105-Main shaft; 106-Connecting rod; 107-Rear cover plate; 108-Front cover plate; 109-Differential gear; 110-Motor; 111-Counter shaft; 112-Slapping belt; 113-Filter screen; 114-Guide pipe; 115-Fan; 116-Feed hopper; 117-Conveyor belt. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0025] like Figures 1 to 6 As shown, a dust-proof sand screening device for wet-mixed mortar includes a support frame 101. A collection trough 102 is fixedly installed on the support frame 101. The collection trough 102 is inclined. A screen cylinder 104 is rotatably installed on the collection trough 102. The screen cylinder 104 is provided with screen holes. A shell 103 is fixedly installed on the collection trough 102. The shell 103 encloses the screen cylinder 104. A secondary shaft 111 is rotatably installed on the shell 103. Multiple sets of beating belts 112 are fixedly installed on the secondary shaft 111. A filter screen 113 and a guide pipe 114 are fixedly installed on the shell 103. A through groove is provided on the collection trough 102. A conveyor belt 117 is installed on the through groove.

[0026] Specifically, the wet mortar entering the screen cylinder 104 is screened by rotating the screen cylinder 104 on the collection tank 102 and the screen cylinder 104. The screened sand and gravel fall into the collection tank 102 through the outer shell 103, and then fall onto the conveyor belt 117 through the collection tank 102, and are transported out by the conveyor belt 117. Meanwhile, the sand and gravel remaining on the screen cylinder 104 are gradually moved out as the screen cylinder 104 tilts.

[0027] When the sieve cylinder 104 is used for sieving, even in a moist state, sand and gravel may still generate dust. Therefore, during sand sieving, the outer shell 103 needs to wrap around the outside of the sieve cylinder 104 to restrict the dust generated. The dust is then guided by the guide pipe 114 provided in the outer shell 103, centrally filtered, and discharged. Specifically, by connecting a fan 115 to the guide pipe 114, a negative pressure is created inside the outer shell 103, driving gas flow. This causes external gas to enter the sieve cylinder 104. The gas inside the sieve cylinder 104 carries the dust through the sieve holes into the space between the sieve cylinder 104 and the outer shell 103. The dust then moves along the arc-shaped surface of the inner wall of the outer shell 103 to the upper part, i.e., the location of the guide pipe 114. After being filtered by the filter screen 113, it enters the guide pipe 114. Guided by the guide pipe 114 and the fan 115, the gas and dust are centrally collected. The filtration of the filter screen 113 prevents some sand and gravel from entering the guide pipe 114 due to the rotation of the sieve cylinder 104 and the movement of the gas.

[0028] like Figure 6 As shown, when the screen cylinder 104 rotates, it also drives the secondary shaft 111 to rotate on the outer casing 103. The secondary shaft 111 drives multiple sets of beating belts 112. The beating belts 112 are made of flexible material, such as rubber. As the secondary shaft 111 rotates, the beating belts 112 sequentially beat the screen cylinder 104 and the filter screen 113, thereby causing the sand and gravel on the screen cylinder 104 and the filter screen 113 to fall off, preventing blockage of the screen holes of the screen cylinder 104 and the filter holes of the filter screen 113. Figure 6 As shown, when the screen cylinder 104 rotates, it swings the sand and gravel. The sand and gravel enter the collection tank 102 and the outer shell 103 through the screen holes. They fall through the arc-shaped structure of the outer shell 103 and through the gap between the screen cylinder 104 and the outer shell 103 and the collection tank 102. They enter the space between the screen cylinder 104 and the collection tank 102 from the space between the outer shell 103 and the screen cylinder 104, and then fall onto the conveyor belt 117 for transportation.

[0029] like Figure 3 and Figure 6 As shown, a main shaft 105 is rotatably mounted on the support frame 101, and a plurality of connecting rods 106 are fixedly mounted on the main shaft 105. The connecting rods 106 are fixedly connected to the inner wall of the outer shell 103.

[0030] Specifically, the power to the screen cylinder 104 is connected through the connecting rod 106 on the main shaft 105. That is, when the main shaft 105 rotates, the main shaft 105 drives the screen cylinder 104 to rotate on the collection tank 102 and the outer shell 103 through multiple connecting rods 106, thereby realizing the screening of sand and gravel.

[0031] like Figure 1 As shown, a motor 110 is fixedly mounted on the support frame 101, and the output end of the motor 110 is fixedly connected to the main shaft 105.

[0032] Specifically, by setting a differential 109 between the motor 110 and the main shaft 105, the rotation speed of the screen cylinder 104 and the main shaft 105 is controlled to avoid excessive rotation speed, which would affect the screening effect and prevent some sand and gravel from contacting the filter screen 113 with excessive inertia, clogging the filter holes of the filter screen 113, and affecting the passage of gas and dust.

[0033] like Figure 5 As shown, a rear cover plate 107 is fixedly installed on one end of the outer shell 103 near the motor 110. The rear cover plate 107 is fixedly connected to the outer shell 103 and the collection tank 102. The rear cover plate 107 is rotatably connected to the main shaft 105 and the screen cylinder 104. A feed inlet is provided on the rear cover plate 107, and a feed hopper 116 is fixedly installed on the feed inlet.

[0034] Specifically, feeding is achieved through the feed hopper 116 and the feed plate 107. The feed plate 107 blocks the end of the screen cylinder 104 near 10 to prevent sand and gravel from flowing out in reverse.

[0035] like Figure 2 and Figure 4 As shown, a front cover plate 108 is fixedly installed on the support frame 101 at the end away from the motor 110. The front cover plate 108 is rotatably connected to the screen cylinder 104 and the main shaft 105. The front cover plate 108 is fixedly connected to the outer shell 103 and the collection trough 102. An arc-shaped opening is provided on the rear cover plate 107 at the end near the collection trough 102. This arc-shaped opening is used for the discharge of material after screening by the outer shell 103.

[0036] Specifically, pulleys are provided at the ends of the main shaft 105 and the auxiliary shaft 111 near the front cover plate 108, and belts are provided on the two pulleys to transmit power between the main shaft 105 and the auxiliary shaft 111. When the main shaft 105 rotates, it drives the auxiliary shaft 111 to rotate on the outer casing 103. The front cover plate 108 blocks the upper part of the left end of the screen cylinder 104, and an arc-shaped opening flows out from the lower part of the screen cylinder 104. The sand and gravel that failed to pass through the screen holes after screening are discharged through the arc-shaped opening and then discharged through the guide plate on the collection trough 102.

[0037] like Figure 1 and Figure 2 As shown, a fan 115 is fixedly installed on the support frame 101, and the air intake of the fan 115 is connected to the guide pipe 114 through a pipe.

[0038] Specifically, during sand screening, the blower 115 is started, and the gas in the guide pipe 114 is driven to flow outward through the blower 115 and the pipeline, thereby moving the dust out of the screen cylinder 104 and collecting it. A settling device is installed on the pipeline of the blower 115 to collect the dust and discharge clean gas, thus avoiding pollution.

[0039] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dust-proof sand screening device for wet-mixed mortar, characterized in that: The system includes a support frame (101), on which a collection trough (102) is fixedly installed. The collection trough (102) is inclined and a sieve cylinder (104) is rotatably mounted on the collection trough (102). The sieve cylinder (104) has sieve holes. A housing (103) is fixedly mounted on the collection trough (102) and encloses the sieve cylinder (104). A secondary shaft (111) is rotatably mounted on the housing (103). Multiple sets of beating belts (112) are fixedly mounted on the secondary shaft (111). A filter screen (113) and a guide pipe (114) are fixedly mounted on the housing (103). A through groove is provided on the collection trough (102), and a conveyor belt (117) is provided on the through groove.

2. The dust-proof sand screening device for wet-mixed mortar according to claim 1, characterized in that: A main shaft (105) is rotatably mounted on the support frame (101), and multiple connecting rods (106) are fixedly mounted on the main shaft (105). The connecting rods (106) are fixedly connected to the inner wall of the outer shell (103).

3. The dust-proof sand screening device for wet-mixed mortar according to claim 2, characterized in that: A motor (110) is fixedly mounted on the support frame (101), and the output end of the motor (110) is fixedly connected to the main shaft (105).

4. The dust-proof sand screening device for wet-mixed mortar according to claim 3, characterized in that: A rear cover plate (107) is fixedly installed on one end of the outer casing (103) near the motor (110). The rear cover plate (107) is fixedly connected to the outer casing (103) and the collection tank (102). The rear cover plate (107) is rotatably connected to the main shaft (105) and the screen cylinder (104). A feed inlet is provided on the rear cover plate (107), and a feed hopper (116) is fixedly installed on the feed inlet.

5. The dust-proof sand screening device for wet-mixed mortar according to claim 4, characterized in that: A front cover plate (108) is fixedly installed on the support frame (101) at the end away from the motor (110). The front cover plate (108) is rotatably connected to the screen cylinder (104) and the main shaft (105). The front cover plate (108) is fixedly connected to the outer shell (103) and the collection trough (102). An arc-shaped opening is provided on the rear cover plate (107) at the end near the collection trough (102). The arc-shaped opening is used for the discharge of material after screening by the outer shell (103).

6. The dust-proof sand screening device for wet-mixed mortar according to claim 5, characterized in that: A fan (115) is fixedly installed on the support frame (101), and the air inlet of the fan (115) is connected to the guide pipe (114) through a pipe.

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