Gravel screening equipment for mortar preparation
By introducing separation and cleaning components into the mortar preparation equipment, the problem of sand and gravel accumulation on the outer wall of the rotating shell was solved, achieving efficient separation and cleaning, improving the stability and lifespan of the equipment, and reducing operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-04-03
AI Technical Summary
After prolonged operation, fine sand and gravel particles tend to adhere to the outer wall of the rotating shell of existing mortar preparation equipment, leading to increased frictional resistance, reduced separation efficiency, and accelerated equipment wear, which affects screening accuracy and equipment lifespan.
Design a sand and gravel screening device for mortar preparation, comprising a separation component and a cleaning component. The separation component separates sand and gravel from sand by rotation, while the cleaning component scrapes off the attached sand and gravel particles with a brush, ensuring smooth rotation of the rotating shell and effective screening of the filter tank.
It improves the controllability and stability of mortar raw materials, reduces the risk of equipment wear, extends service life, and reduces maintenance frequency and operating costs.
Smart Images
Figure CN224072653U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screening equipment technology, specifically to a sand and gravel screening device for mortar preparation. Background Technology
[0002] In the field of building materials preparation, mortar is a key basic material widely used in masonry, plastering, floor leveling and various building decoration projects. Its quality is directly related to the overall performance and durability of building projects. With the vigorous development of the construction industry, the requirements for mortar quality are becoming increasingly stringent. As the main aggregate component of mortar, sand and gravel play a crucial role in the mortar production process by controlling and screening their quality.
[0003] Due to the lack of an effective cleaning and protection mechanism, or the absence or improper design of cleaning components, a large amount of fine sand and gravel particles easily accumulate on the outer wall of the rotating shell after prolonged operation. These deposits not only increase the frictional resistance during the rotation of the shell, hindering its smooth rotation and reducing separation efficiency, but also cause physical damage to the filter tank, impairing screening accuracy and accelerating the wear and aging process of key components of the equipment. Utility Model Content
[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: a sand and gravel screening device for mortar preparation, comprising: a fixed cylinder, the bottom of which is fixedly connected to a support frame; a separation component, the outer wall of which is rotatably connected to the inner wall of the fixed cylinder, the separation component being used to separate sand and gravel from sand in the material by rotation; and a cleaning component, the outer wall of which is slidably connected to the inner wall of the fixed cylinder, the cleaning component being used to scrape away fine sand and gravel particles adhering to the separation component; the separation component includes a feed pipe, the bottom of which is rotatably connected to a rotating shell, the outer wall of which is fixedly connected to a pulley, the outer wall of which is connected to an external motor via a belt, the rotating shell having filter grooves arranged in a circular array along the central axis of the rotating shell, and a turntable rotatably connected to the inner wall of the rotating shell.
[0005] Preferably, a discharge pipe is fixedly connected to the inner wall of the turntable, and a discharge blade is fixedly connected to the inner wall of the rotating shell. The discharge blade is used to discharge sand and gravel from the rotating shell, and the discharge blade is arranged in a ring along the central axis of the rotating shell.
[0006] Preferably, the outer wall of the discharge pipe is fixedly connected to the inner wall of the fixed cylinder, the inner wall of the fixed cylinder is rotatably connected to the outer wall of the turntable through a cylinder, the outer wall of the cylinder is fixedly connected to the outer wall of the turntable, and the outer wall of the feed pipe is fixedly connected to the inner wall of the fixed cylinder.
[0007] Preferably, the cleaning assembly includes a connecting frame, a fixing plate is fixedly connected to the bottom of the connecting frame, a brush is fixedly connected to the bottom of the fixing plate, and the brush is arranged in a linear array along the outer wall of the fixing plate.
[0008] Preferably, the outer wall of the connecting frame is fitted with a locking block, the locking block is made of an elastic material, the outer wall of the connecting frame is slidably connected to the inner wall of the fixed cylinder, the bottom of the locking block is fixedly connected to the top of the fixed cylinder, and the bottom of the brush is in contact with the outer wall of the rotating shell.
[0009] The beneficial effects of this utility model are as follows:
[0010] 1. This utility model, by setting up a separation component, uses a rotating shell connected to the inner wall of the fixed cylinder for rotational connection. Combined with the high-speed rotational motion driven by the pulley under external power, and the discharge blades arranged in a ring array to fully mix and evenly disperse the material, the filter tank separates the sand and gravel, and the discharge blades discharge the sand and gravel, thus comprehensively improving the controllability and stability of the mortar raw material quality.
[0011] 2. By setting up a cleaning component and adopting a sliding connection design between the connecting frame and the inner wall of the fixed cylinder, along with the brushes arranged on the fixed plate, this utility model can remove fine sand and gravel particles attached to the outer wall of the rotating shell. This curbs the obstruction effect of sand and gravel accumulation on the smooth rotation of the rotating shell and the negative impact on the screening of the filter tank. It reduces the wear risk of key components of the equipment, extends its service life, reduces the frequency and intensity of equipment maintenance, and thus reduces the operating cost of the equipment throughout its entire life cycle. Attached Figure Description
[0012] Figure 1 This is a perspective view of the present invention;
[0013] Figure 2 This is an exploded structural diagram of the internal structure of this utility model;
[0014] Figure 3 This is an exploded structural diagram of the separation component of this utility model;
[0015] Figure 4 This is a schematic diagram of the structure of the cleaning component of this utility model.
[0016] In the diagram: 1. Fixed cylinder; 2. Support frame; 3. Separation component; 4. Cleaning component; 31. Feed pipe; 32. Rotary shell; 33. Discharge blade; 34. Filter tank; 35. Pulley; 36. Turntable; 37. Discharge pipe; 41. Connecting frame; 42. Fixed plate; 43. Clamping block; 44. Brush. Detailed Implementation
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.
[0018] Example:
[0019] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a sand and gravel screening device for mortar preparation, comprising: a fixed cylinder 1, with a support frame 2 fixedly connected to the bottom of the fixed cylinder 1; a separation component 3, the outer wall of which is rotatably connected to the inner wall of the fixed cylinder 1, the separation component 3 being used to separate sand and gravel from materials by rotation; and a cleaning component 4, the outer wall of which is slidably connected to the inner wall of the fixed cylinder 1, the cleaning component 4 being used to scrape away fine sand and gravel particles adhering to the separation component 3; the separation component 3... The system includes a feed pipe 31, a rotating shell 32 rotatably connected to the bottom of the feed pipe 31, a pulley 35 fixedly connected to the outer wall of the rotating shell 32, a filter groove 34 formed in the wall of the rotating shell 32 and arranged in a ring along the central axis of the rotating shell 32, and a turntable 36 rotatably connected to the inner wall of the rotating shell 32. When the material tumbles inside the rotating shell 32, smaller particles such as sand are thrown out of the rotating shell 32 through the filter groove 34 under the action of centrifugal force, achieving preliminary separation; while larger sand and gravel particles remain inside the rotating shell 32 because they cannot pass through the filter groove 34.
[0020] The inner wall of the turntable 36 is fixedly connected to the discharge pipe 37, and the inner wall of the rotating shell 32 is fixedly connected to the discharge blades 33, which are arranged in a ring along the central axis of the rotating shell 32. The outer wall of the discharge pipe 37 is fixedly connected to the inner wall of the fixed cylinder 1. The inner wall of the fixed cylinder 1 is rotatably connected to the outer wall of the turntable 36 through a cylinder. The outer wall of the feed pipe 31 is fixedly connected to the inner wall of the fixed cylinder 1. As the rotating shell 32 rotates, the sand and gravel remaining under the rotating shell 32 gradually gather towards the discharge pipe 37 under the action of the discharge blades 33, and are finally discharged through the discharge pipe 37, thus completing the separation process of sand and gravel.
[0021] The cleaning component 4 includes a connecting frame 41, a fixing plate 42 fixedly connected to the bottom of the connecting frame 41, a brush 44 fixedly connected to the bottom of the fixing plate 42, and the brush 44 arranged linearly along the outer wall of the fixing plate 42. A locking block 43 is engaged with the outer wall of the connecting frame 41. The outer wall of the connecting frame 41 is slidably connected to the inner wall of the fixing cylinder 1. The bottom of the locking block 43 is fixedly connected to the top of the fixing cylinder 1. The bottom of the brush 44 is in contact with the outer wall of the rotating shell 32. By manually moving the connecting frame 41 up and down, the brush 44 contacts the rotating shell 32 and scrapes the outer wall of the rotating shell 32 to remove the attached sand and gravel particles, preventing their accumulation from affecting the rotation of the rotating shell 32 and the screening effect of the filter tank 34.
[0022] Working principle:
[0023] The sand and gravel screening equipment used for mortar preparation mainly consists of a fixed cylinder 1, a support frame 2, a separation component 3, and a cleaning component 4. The components work together to separate the sand and gravel from the sand in the mortar raw materials.
[0024] The fixed cylinder 1 serves as the basic support structure for the entire equipment, ensuring the stable operation of all internal components. The support frame 2, which is fixedly connected to its bottom, ensures that the fixed cylinder 1 is in a stable working position, preventing the equipment from shaking or shifting during operation.
[0025] Separation component 3 undertakes the core material separation task. The material enters the rotating shell 32 through the feed pipe 31. The rotating shell 32, due to its rotational connection with the inner wall of the fixed cylinder 1, can stably rotate around its axis. At the same time, the pulley 35 fixedly connected to the outer wall of the rotating shell 32 rotates under the drive of an external power source, namely a motor, via a belt, thereby driving the rotating shell 32 to rotate at high speed. The discharge blades 33 in a ring array on the inner wall of the rotating shell 32 move rapidly with the rotation of the rotating shell 32, playing a role in stirring and dispersing the incoming material, so that the material is evenly distributed in the rotating shell 32, which facilitates subsequent separation operations. When the material tumbles inside the rotating shell 32, smaller particles such as sand are thrown out of the rotating shell 32 through the filter tank 34 under the action of centrifugal force, achieving preliminary separation; while larger sand and gravel particles cannot be filtered in the filter tank 34 and remain inside the rotating shell 32. The rotating disk 36 is located on the inner wall of the rotating shell 32 and is rotatably connected to the inner wall of the fixed cylinder 1 through a cylinder, ensuring that the rotating disk 36 can rotate relatively stably. As the rotating shell 32 rotates, the sand and gravel remaining under the rotating shell 32 gradually gather towards the discharge pipe 37 under the action of the discharge blade 33, and are finally discharged through the discharge pipe 37, completing the separation process of sand and gravel.
[0026] Cleaning component 4 is responsible for keeping separation component 3 clean. The outer wall of connecting frame 41 is slidably connected to the inner wall of fixed cylinder 1, allowing connecting frame 41 to move up and down along the inner wall of fixed cylinder 1 to adjust its position. The linear array of brushes 44 on the fixed plate 42 at the bottom of connecting frame 41 is in close contact with the outer wall of rotating shell 32. When it is necessary to clean the fine sand and gravel particles attached to the outer wall of rotating shell 32, the connecting frame 41 is moved up and down manually, and the brushes 44 contact the rotating shell 32 and scrape the outer wall of rotating shell 32. The attached sand and gravel particles are swept away to prevent their accumulation from affecting the rotation of the rotating shell 32 and the screening effect of the filter tank 34. The locking block 43 on the outer wall of the connecting frame 41 is fixed to the top of the fixed cylinder 1. On the one hand, it supports the connecting frame 41 and ensures that the brush 44 is always on top of the locking block 43 when it is not cleaning the rotating shell 32. On the other hand, it restricts the position of the connecting frame 41. When the brush 44 cleans the rotating shell 32, it locks the connecting frame 41 through the locking block 43 to prevent it from falling off the outer wall of the rotating shell 32.
[0027] Throughout the entire sand and gravel screening process, all components work closely together according to the above working principle. The fixed cylinder 1 and the support frame 2 provide stable support, the separation component 3 separates sand and gravel from sand, and the cleaning component 4 cleans the outer surface of the rotating shell 32 in a timely manner. This ensures that the sand and gravel screening equipment used for mortar preparation operates smoothly and reliably, providing sand and gravel raw materials that meet the requirements for the preparation of high-quality mortar.
[0028] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A sandstone separating device for mortar preparation, characterized in that, Include: The fixed cylinder (1), the bottom of the fixed cylinder (1) is fixedly connected with the support frame (2); The separation assembly (3), the outer wall of the separation assembly (3) is rotatably connected with the inner wall of the fixed cylinder (1), and the separation assembly (3) is used for separating sand and gravel in the material by rotating; The cleaning assembly (4), the outer wall of the cleaning assembly (4) is slidably connected with the inner wall of the fixed cylinder (1), and the cleaning assembly (4) is used for removing fine sand particles attached to the separation assembly (3) by scraping; The separation assembly (3) includes a feed pipe (31), the bottom of the feed pipe (31) is rotatably connected with a rotating shell (32), the outer wall of the rotating shell (32) is fixedly connected with a belt pulley (35), the wall of the rotating shell (32) is provided with a filter groove (34), and the filter groove (34) is arranged in an annular array along the central axis of the rotating shell (32), the inner wall of the rotating shell (32) is rotatably connected with a rotating disc (36); The cleaning assembly (4) includes a connecting frame (41), the bottom of the connecting frame (41) is fixedly connected with a fixed plate (42), the bottom of the fixed plate (42) is fixedly connected with a brush (44), and the brush (44) is arranged in a linear array along the outer wall of the fixed plate (42); The outer wall of the connecting frame (41) is clamped with a clamping block (43), and the outer wall of the connecting frame (41) is slidably connected with the inner wall of the fixed cylinder (1); the bottom of the clamping block (43) is fixedly connected with the top of the fixed cylinder (1), and the bottom of the brush (44) is in contact with the outer wall of the rotating shell (32).
2. A sandstone separating device for mortar preparation according to claim 1, characterized in that: The inner wall of the rotating disc (36) is fixedly connected with a discharge pipe (37), the inner wall of the rotating shell (32) is fixedly connected with a discharge leaf (33), and the discharge leaf (33) is arranged in an annular array along the central axis of the rotating shell (32).
3. A sandstone separating device for mortar preparation according to claim 2, characterized in that: The outer wall of the discharge pipe (37) is fixedly connected with the inner wall of the fixed cylinder (1), the inner wall of the fixed cylinder (1) is rotatably connected with the outer wall of the rotating disc (36) through a cylinder, and the outer wall of the feed pipe (31) is fixedly connected with the inner wall of the fixed cylinder (1).