Sand screening device for constructional engineering

Abstract

The utility model discloses a constructional engineering sand screening device, which belongs to the field of constructional engineering and comprises an equipment shell, a first screening net is fixedly mounted in the equipment shell, the tail end of the first screening net is fixedly connected with a material guide shell, and the bottom of the material guide shell is fixedly connected with a heating shell. A vibration pump is fixedly installed on the outer wall of the heating shell, a motor is fixedly installed on the outer wall of the bottom end of the heating shell, an output shaft of the motor is fixedly sleeved with a first bevel gear, the surface of the first bevel gear is meshed with a cutting assembly, a spiral ring is fixedly installed on the inner wall of the heating shell, a middle shaft is integrally formed in the middle of the spiral ring, and a cutting assembly is rotationally installed on the side face of the middle shaft. Wet sand is inevitably vibrated, cut and dispersed through a path structure of the spiral ring when passing through the device, the sand is rapidly dispersed in cooperation with heating, the secondary screening efficiency is improved, it is guaranteed that the sand rapidly passes through the filter screen to be screened, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of construction engineering, and more specifically, to a sand screening device for construction engineering. Background Technology

[0002] Sand is essential in construction projects, and sand screening is a common process used to separate and screen impurities and particles of different sizes. Patent publication number CN222241253U discloses a sand screening device for construction projects, relating to the field of sand screening technology. It includes: a housing; a clump-breaking component, located inside the housing, used to break up clumps of wet sand; the clump-breaking component includes a processing shell fixed inside the housing, with a heating chamber inside the processing shell containing a heating wire; a support frame fixed inside the processing shell, with two pulleys rotating below the support frame, and a belt fitted between the outer surfaces of the two pulleys. This invention introduces clumps of sand into the processing shell, where heating by the heating wire evaporates the moisture. As the sand dries, the clumps gradually disperse. A motor drives a straight rod and a rubber sheet via the belt and pulleys, and the rubber sheet rapidly breaks up the clumps, increasing the drying and dispersing rate of the wet sand and helping to effectively screen out clumps, thus reducing sand waste.

[0003] In existing technologies, although secondary screening and heating are used to quickly filter and separate wet sand, the internal structure of the processing shell in the agglomeration component is through-hole, which may cause the sand to bypass the rubber sheet and pass directly through the shell onto the screen. This affects the efficiency of subsequent sand passage and may cause screen blockage over time, making sand screening difficult. Therefore, a agglomeration structure is needed that can ensure that the sand is dispersed and heated as it passes through. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a sand screening device for construction engineering. It can achieve the effect of vibration and cutting dispersion of wet sand clumps when passing through the spiral ring path structure, and achieve rapid dispersion of sand with the help of heating, thereby improving the efficiency of secondary screening, ensuring that the sand passes through the filter screen quickly to complete the screening, and improving the practicality of the device.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A sand screening device for construction engineering includes a housing. A first screening screen is fixedly installed inside the housing. A guide shell is fixedly connected to the tail end of the first screening screen. A heating shell is fixedly connected to the bottom of the guide shell. A vibration pump is fixedly installed on the outer wall of the heating shell. A motor is fixedly installed on the outer wall at the bottom end of the heating shell. A helical gear is fixedly sleeved on the output shaft of the motor. A dividing component meshes with the surface of the helical gear. A spiral ring is fixedly installed on the inner wall of the heating shell. A central shaft is integrally formed in the middle of the spiral ring. A cutting component is rotatably installed on the side of the central shaft. A second screening screen is arranged below the heating shell.

[0009] Furthermore, the dividing component includes a connecting shaft, on the surface of which a plurality of helical gears are integrally formed, a limiting disk is integrally formed at the top of the connecting shaft, a connecting frame is fixedly installed at the bottom of the connecting shaft, a rotating ring is fixedly installed at the outer end of the connecting frame, a helical gear ring is fixedly installed at the top of the rotating ring, a plurality of scrapers are fixedly installed at the bottom of the rotating ring, a plurality of stirring plates are fixedly installed at the top of the rotating ring, splitting plates are integrally formed on both the left and right sides of the stirring plates, and fan blades are fixedly installed above the limiting disk.

[0010] Furthermore, a rotating groove is provided inside the central shaft, and the shape of the rotating groove is adapted to the overall shape of the connecting shaft.

[0011] Furthermore, the surface of the helical gear ring meshes with the surface of the helical gear, the rotating ring is rotatably installed inside the heating shell, and the surface of the scraper is attached to the inner wall at the bottom of the heating shell.

[0012] Furthermore, the severing assembly includes a rotating shaft, a limiting ring is fixedly installed on the surface of the rotating shaft, a helical gear is fixedly installed at one end of the rotating shaft, and a plurality of connecting discs are fixedly installed on the surface of the rotating shaft from left to right, and a plurality of split teeth are integrally formed on the surface of the connecting discs.

[0013] Furthermore, the limiting ring is rotatably installed inside the side of the central shaft, and the surfaces of the helical gear three and the helical gear two mesh with each other.

[0014] Furthermore, the diameters of several of the connecting discs are enlarged proportionally from left to right along the axis of rotation, and the enlargement ratio is the same as the enlargement ratio of the height of each two adjacent layers of the spiral ring on the horizontal plane.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) This scheme uses a spiral ring to limit the passage path of the sand, thereby avoiding the possibility of the sand directly passing through the heating shell and entering the second screening screen. With the help of a vibration pump, the sand gradually moves down on the surface of the spiral ring, causing it to fall automatically. With the help of the cutting component, the sand clumps can be further cut and dispersed as they pass through, thus improving the dispersion rate.

[0018] (2) This solution uses a segmentation component to perform a final cutting and splitting at the spiral ring drop outlet, ensuring further dispersion of the sand, improving its screening pass rate in the second screening screen, and scraping and cleaning the inner wall of the bottom bucket of the heating shell to prevent sand from sticking to its surface and affecting the drop.

[0019] (3) This solution utilizes the fact that the fan blades in the segmented component can rotate coaxially to accelerate the gas flow inside the spiral ring, so that the dried moisture can be quickly evaporated and prevented from re-condensing inside the spiral ring, thus reducing the drying efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the heating shell in this utility model;

[0022] Figure 3 This is a schematic diagram of the segmented component structure in this utility model;

[0023] Figure 4 This is a schematic diagram of the slitting component structure in this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Equipment casing; 2. First screening screen; 3. Guide shell; 4. Heating shell; 5. Vibration pump; 6. Motor; 7. Helical gear one; 8. Dividing assembly; 9. Central shaft; 10. Spiral ring; 11. Cutting assembly; 12. Second screening screen; 801. Connecting shaft; 802. Helical gear two; 803. Limiting disc; 804. Connecting frame; 805. Rotating ring; 806. Helical gear ring; 807. Scraper; 808. Stirring plate; 809. Dividing disc; 8010. Fan blade; 111. Rotating shaft; 112. Limiting ring; 113. Helical gear three; 114. Connecting disc; 115. Dividing gear. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," 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 do not 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0029] Example 1:

[0030] Please see Figure 1-4 A sand screening device for construction engineering includes a housing 1, a first screening screen 2 fixedly installed inside the housing 1, a guide shell 3 fixedly connected to the tail end of the first screening screen 2, a heating shell 4 fixedly connected to the bottom of the guide shell 3, a vibration pump 5 fixedly installed on the outer wall of the heating shell 4, a motor 6 fixedly installed on the outer wall at the bottom end of the heating shell 4, a helical gear 7 fixedly sleeved on the output shaft of the motor 6, a dividing component 8 meshing on the surface of the helical gear 7, a spiral ring 10 fixedly installed on the inner wall of the heating shell 4, a central shaft 9 integrally formed in the middle of the spiral ring 10, a cutting component 11 rotatably installed on the side of the central shaft 9, and a second screening screen 12 arranged below the heating shell 4.

[0031] It should be noted that the heating shell 4 and all its internal components, except for the vibration pump 5, in this application are arranged in the same way as those in the prior art. Their functions and structures are the same, so they belong to existing mature technology. Therefore, this application will not elaborate on them. It should also be noted that the processing shell in the prior art has a heating cavity with heating wires installed inside to achieve the heating effect. This technical means is the same as the heating function of the heating shell 4 in this application. The structure, arrangement and working principle are the same, so this application will not elaborate on them either.

[0032] The severing assembly 11 includes a rotating shaft 111, a limiting ring 112 fixedly mounted on the surface of the rotating shaft 111, a helical gear 113 fixedly mounted at one end of the rotating shaft 111, and a plurality of connecting discs 114 fixedly mounted on the surface of the rotating shaft 111 from left to right. A plurality of split teeth 115 are integrally formed on the surface of the connecting discs 114. The limiting ring 112 is rotatably mounted inside the side of the central shaft 9. The surface of the helical gear 113 and the surface of the helical gear 802 mesh with each other. The diameter of the plurality of connecting discs 114 is enlarged proportionally from left to right along the rotating shaft 111, and the enlargement ratio is the same as the enlargement ratio of the height of each two adjacent layers of the spiral ring 10 on the horizontal plane.

[0033] Specifically, the vibration pump 5 in this application is arranged above the heating shell 4 to effectively vibrate the spiral ring 10, so that the wet sand on its surface can be initially dispersed and gradually moved downward along the spiral ring 10. The cutting component 11 can further split the wet sand along the way to improve its dispersion. During this process, it is always subjected to high temperature treatment inside the heating shell 4 to quickly evaporate the moisture and improve the dispersion. The limiting ring 112 can further limit the overall rotation of the rotating shaft 111. Then, the magnification ratio of the connecting plate 114 is used to ensure that the material can achieve an effective cutting effect as it passes through, thus ensuring the dispersion of the material.

[0034] The dividing component 8 includes a connecting shaft 801. A plurality of helical gears 802 are integrally formed on the surface of the connecting shaft 801. A limiting disk 803 is integrally formed at the top of the connecting shaft 801. A connecting frame 804 is fixedly installed at the bottom of the connecting shaft 801. A rotating ring 805 is fixedly installed at the outer end of the connecting frame 804. A helical gear ring 806 is fixedly installed at the top of the rotating ring 805. A plurality of scrapers 807 are fixedly installed at the bottom of the rotating ring 805. The device is equipped with several stirring plates 808, and split pieces 809 are integrally formed on both the left and right sides of each stirring plate 808. A fan blade 8010 is fixedly installed above the limiting disk 803. A rotating groove is opened inside the central shaft 9. The shape of the rotating groove is adapted to the overall shape of the connecting shaft 801. The surface of the helical gear ring 806 meshes with the surface of the helical gear 7. The rotating ring 805 is rotatably installed inside the heating shell 4. The surface of the scraper 807 is attached to the inner wall of the bottom end of the heating shell 4.

[0035] Specifically, the limiting disc 803 and the rotating ring 805 can limit the rotation of the entire dividing component 8, enabling it to rotate in place and preventing deviation. Secondly, the scraper 807 is attached to the inner wall of the bucket-shaped opening at the bottom of the heating shell 4 to scrape and clean its surface, preventing stacking and adhesion that would affect the material feeding. Next, the splitting disc 809 allows the stirring plate 808 to further disperse the falling material as it rotates with the rotating ring 805, allowing it to fall onto the top surface of the second screening screen 12 in a more dispersed state, completing rapid screening. Finally, the rotating shaft 801 drives the fan blades 8010 to rotate above the spiral ring 10, thereby accelerating the airflow and facilitating the rapid discharge of moisture after drying.

[0036] The working principle of this utility model is as follows: When the wet sand mass enters the heating shell 4 from the inside of the guide shell 3, the vibration pump 5 and the motor 6 are started. The vibration pump 5 drives the spiral ring 10 to move the material gradually downward with high frequency and slight amplitude vibration. The motor 6 drives the helical gear 1 7 to rotate, the helical gear 1 7 drives the helical gear ring 806 to rotate, and the helical gear ring 806 drives the connecting shaft 801 to rotate as a whole through the connecting frame 804. The helical gear 2 802 drives the helical gear 3 113 to rotate. The rotating shaft 111 synchronously drives the connecting plate 114 and the splitting teeth 115 to rotate continuously to cut and split the wet sand mass that passes along the spiral ring 10. Then, it gradually moves to the bottom of the spiral ring 10 and falls down. At this time, the stirring plate 808 also rotates continuously with the rotation of the rotating ring 805. At this time, the splitting plate 809 further cuts and disperses the sand that passes by laterally. Finally, it falls on the top surface of the second screening screen 12 to complete the secondary screening.

[0037] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A sand screening device for construction engineering, comprising a housing (1), characterized in that: The first screening screen (2) is fixedly installed inside the equipment shell (1). The tail end of the first screening screen (2) is fixedly connected to the guide shell (3). The bottom of the guide shell (3) is fixedly connected to the heating shell (4). The outer wall of the heating shell (4) is fixedly installed with a vibration pump (5). The outer wall of the bottom end of the heating shell (4) is fixedly installed with a motor (6). The output shaft of the motor (6) is fixedly sleeved with a helical gear (7). The surface of the helical gear (7) is meshed with a dividing component (8). The inner wall of the heating shell (4) is fixedly installed with a spiral ring (10). The middle part of the spiral ring (10) is integrally formed with a central shaft (9). The side of the central shaft (9) is rotatably installed with a cutting component (11). The bottom of the heating shell (4) is provided with a second screening screen (12).

2. The sand screening device for construction engineering according to claim 1, characterized in that: The dividing component (8) includes a connecting shaft (801), on the surface of which a plurality of helical gears (802) are integrally formed. A limiting disk (803) is integrally formed at the top of the connecting shaft (801). A connecting frame (804) is fixedly installed at the bottom of the connecting shaft (801). A rotating ring (805) is fixedly installed at the outer end of the connecting frame (804). A helical gear ring (806) is fixedly installed at the top of the rotating ring (805). A plurality of scrapers (807) are fixedly installed at the bottom of the rotating ring (805). A plurality of stirring plates (808) are fixedly installed at the top of the rotating ring (805). Splitting plates (809) are integrally formed on both the left and right sides of the stirring plates (808). A fan blade (8010) is fixedly installed above the limiting disk (803).

3. The sand screening device for construction engineering according to claim 1, characterized in that: The central shaft (9) has a rotating groove inside, and the shape of the rotating groove is adapted to the overall shape of the connecting shaft (801).

4. A sand screening device for construction engineering according to claim 2, characterized in that: The surface of the helical gear ring (806) meshes with the surface of the helical gear (7), the rotating ring (805) is rotatably installed inside the heating shell (4), and the surface of the scraper (807) is attached to the inner wall at the bottom of the heating shell (4).

5. A sand screening device for construction engineering according to claim 1, characterized in that: The splitting assembly (11) includes a rotating shaft (111), a limiting ring (112) is fixedly installed on the surface of the rotating shaft (111), a helical gear (113) is fixedly installed at one end of the rotating shaft (111), and a plurality of connecting discs (114) are fixedly installed on the surface of the rotating shaft (111) from left to right, and a plurality of split teeth (115) are integrally formed on the surface of the connecting discs (114).

6. A sand screening device for construction engineering according to claim 5, characterized in that: The limiting ring (112) is rotatably installed inside the side of the central shaft (9), and the surfaces of the helical gear three (113) and the helical gear two (802) mesh with each other.

7. A sand screening device for construction engineering according to claim 5, characterized in that: The diameter of several connecting discs (114) is enlarged proportionally from left to right along the axis of rotation (111), and the enlargement ratio is the same as the enlargement ratio of the height of each two adjacent layers of the spiral ring (10) on the horizontal plane.

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