Screening device for concrete raw materials

Abstract

The utility model discloses a screening device for concrete raw materials, and relates to the technical field of concrete processing. The vibrating screen comprises a box body, a primary screening assembly is arranged in the box body, a secondary screening assembly is fixedly connected to the bottom of the primary screening assembly, and a guide assembly is fixedly connected to the interior of the box body. According to the concrete screening device, the primary screening assembly is connected with the secondary screening assembly, qualified concrete raw materials can be extruded and thrown into the box body from the side wall of the primary screening assembly in the rotating process of the primary screening assembly, and unqualified concrete raw materials and impurities fall into the secondary screening assembly below the primary screening assembly under the action of gravity; in the process, part of qualified concrete raw materials are inevitably carried, the qualified concrete raw materials penetrate through the second screen assembly to fall into the box body, and unqualified concrete raw materials and impurities are blocked by the second screen assembly and slide out of the box body along the second screen assembly, so that automatic screening is achieved, workers do not need to manually clean the impurities, and the working efficiency is improved. And the use is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete processing, and in particular relates to a screening device for concrete raw materials. Background Art

[0002] Concrete, abbreviated as "concrete", is a general term for engineering composite materials that are cemented into a whole by cementitious materials. The term concrete usually refers to cement as a cementitious material, sand and stone as aggregates, and water in a certain proportion, and the cement concrete obtained by mixing, also known as ordinary concrete, is widely used in civil engineering and other fields.

[0003] Chinese patent CN218743057U discloses a screening device for concrete raw materials, which relates to the field of concrete processing technology. The screening device for concrete raw materials comprises a support leg, a processing box is fixedly connected to the top of the support leg, a box door is hinged on the front of the processing box, a feed pipe is fixedly connected to the left side of the box door, a screening mechanism is arranged on the right side and inside of the processing box, guide blocks are fixedly connected on both sides of the inner wall of the processing box, a cleaning mechanism is arranged inside the support leg, and a discharge port is opened at the bottom of the processing box.

[0004] Before concrete is used, a screening device is needed to screen the impurities inside the concrete raw materials. However, the current screening efficiency of the concrete raw material screening device is low, and the impurities in the concrete cannot be screened in layers in sequence, which wastes a lot of workers' time and is inconvenient to use. In the above document, the first motor drives the screening drum to roll so that the concrete raw materials added to the screening drum can be screened, but the screened impurities will remain in the screening drum, and the box door and the drum door need to be opened to clean the impurities in the screening drum, which is more troublesome to use.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] In view of the problems in the related technology, the utility model proposes a screening device for concrete raw materials to overcome the above technical problems existing in the existing related technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model relates to a screening device for concrete raw materials, which comprises a box body. An initial screening component is arranged inside the box body. A second screening component is fixedly connected to the bottom of the initial screening component. A guiding component is fixedly connected inside the box body. A blanking component is fixedly connected to the bottom of the box body. The initial screening component and the second screening component are used for screening the concrete raw materials. The guiding component is used for guiding the direction of the qualified concrete raw materials. The blanking component is used for discharging the qualified concrete raw materials.

[0009] Furthermore, the initial screening component comprises a screening barrel which is fixedly connected inside the box body. A rotating shaft is rotatably connected inside the screening barrel. Vanes are fixedly connected to the outer surface of the rotating shaft. A motor and a feed pipe are fixedly connected to the top of the box body. The output shaft of the motor is fixedly connected to the rotating shaft. The feed pipe extends into the screening barrel.

[0010] Furthermore, the second screening component comprises a square pipe. The upper end of the square pipe is fixedly connected to the screening barrel. A notch is formed at the bottom of the square pipe. A sieve mesh is fixedly connected inside the notch. The lower end of the square pipe extends to the outside of the box body.

[0011] Furthermore, the guiding component comprises a first guiding plate and a second guiding plate. Both the first guiding plate and the second guiding plate are fixedly connected inside the box body. Both the first guiding plate and the second guiding plate are in an inverted conical shape. An arc-shaped boss is fixedly connected to the outer surface of the square pipe.

[0012] Furthermore, the blanking component comprises a blanking pipe. A baffle is slidably connected inside the blanking pipe. A conveyor belt is arranged at the bottom of the blanking pipe. The blanking pipe is fixedly connected to the bottom of the box body.

[0013] Furthermore, a handle is fixedly connected to the outer surface of the baffle.

[0014] Furthermore, legs are fixedly connected to the bottom of the box body. Square plates are fixedly connected to the bottoms of the legs.

[0015] The utility model has the following beneficial effects:

[0016] 1. Through the connection of the initial screening component and the second screening component, during the rotation of the initial screening component, the qualified concrete raw materials can be squeezed out from its side wall and thrown into the box body. The unqualified concrete raw materials and impurities fall into the second screening component below the initial screening component under the action of gravity. Inevitably, some qualified concrete raw materials will be carried during this process. The qualified concrete raw materials pass through the second screening component and fall into the box body, while the unqualified concrete raw materials and impurities are blocked by the second screening component and slide down along the second screening component to the outside of the box body, thus realizing automatic screening without manual cleaning of impurities by workers, which is relatively convenient to use.

[0017] 2. Through the connection between the screening barrel and the square pipe of the present utility model, the blades push the concrete raw materials to move inside the screening barrel. Part of the qualified concrete raw materials can be moved out from the side of the screening barrel and fall into the box body. The unqualified concrete and impurities fall into the square pipe along the screening barrel under the action of gravity. During this process, another part of the qualified concrete driven can pass through the screen at the bottom of the square pipe and fall into the box body, while the unqualified concrete and impurities are blocked by the screen and discharged out of the box body along the square pipe, thereby realizing the automatic screening of the concrete raw materials, without the need for manual cleaning of impurities by workers, and being relatively convenient to use.

[0018] Of course, it is not necessary for any product implementing the present utility model to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic diagram of the external contour structure of the present utility model;

[0021] Figure 2 is a schematic sectional view of the box body of the present utility model Figure 1 ;

[0022] Figure 3 is a schematic sectional view of the box body of the present utility model Figure 2 ;

[0023] Figure 4 is a schematic sectional view of the screening barrel of the present utility model;

[0024] Figure 5 is a schematic diagram of the square pipe structure of the present utility model;

[0025] Figure 6 is of the present utility model Figure 4 is an enlarged schematic view of the structure at A in

[0026] In the drawings, the list of components represented by each reference numeral is as follows:

[0027] 1. Box body; 2. Primary screening assembly; 201. Screening barrel; 202. Rotating shaft; 203. Blade; 204. Motor; 205. Feed pipe; 3. Secondary screening assembly; 301. Square pipe; 302. Notch; 303. Screen; 4. Guiding assembly; 401. First guiding plate; 402. Second guiding plate; 403. Arc-shaped boss; 5. Feeding assembly; 501. Feeding pipe; 502. Baffle; 503. Conveyor belt; 6. Handle; 7. Leg; 8. Square plate. Detailed implementation mode

[0028] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the utility model.

[0029] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc. indicating the orientation or position relationship are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the utility model.

[0030] Please refer to Figures 1-6 As shown, the present utility model is a screening device for concrete raw materials, including a box body 1. An internal primary screening assembly 2 is arranged inside the box body 1. A secondary screening assembly 3 is fixedly connected to the bottom of the primary screening assembly 2. A guiding assembly 4 is fixedly connected inside the box body 1. A feeding assembly 5 is fixedly connected to the bottom of the box body 1. The primary screening assembly 2 and the secondary screening assembly 3 are used for screening the concrete raw materials. The guiding assembly 4 is used to guide the direction of the qualified concrete raw materials. The feeding assembly 5 is used to discharge the qualified concrete raw materials.

[0031] First, pour the concrete raw materials into the primary screening assembly 2 inside the box body 1. Start the primary screening assembly 2 to screen the concrete raw materials. The qualified concrete raw materials are thrown out from the side of the primary screening assembly 2 and fall into the box body 1. The unqualified concrete raw materials will be blocked by the primary screening assembly 2 and fall into the secondary screening assembly 3. Part of the driven qualified concrete raw materials can fall into the box body 1 from the secondary screening assembly 3. The unqualified concrete raw materials move along the secondary screening assembly 3 to the outside of the box body 1. The concrete raw materials falling into the box body 1 move along the guiding assembly 4 to the feeding assembly 5. Open the feeding assembly 5 to enable the qualified concrete raw materials to be discharged to the outside of the box body 1 through the feeding assembly 5.

[0032] Through the connection of the primary screening component 2 and the secondary screening component 3, during the rotation of the primary screening component 2, the qualified concrete raw materials can be extruded and thrown out from its side wall into the box body 1, and the unqualified concrete raw materials and impurities fall into the secondary screening component 3 below the primary screening component 2 under the action of gravity. Inevitably, some qualified concrete raw materials will be carried during this process. The qualified concrete raw materials pass through the secondary screening component 3 and fall into the box body 1, while the unqualified concrete raw materials and impurities are blocked by the secondary screening component 3 and slide along the secondary screening component 3 to the outside of the box body 1, thus realizing automatic screening without the need for staff to manually clean the impurities, which is relatively convenient to use.

[0033] In one embodiment, for the above-mentioned primary screening component 2, the primary screening component 2 includes a screening barrel 201, the screening barrel 201 is fixedly connected to the inside of the box body 1, a rotating shaft 202 is rotatably connected to the inside of the screening barrel 201, blades 203 are fixedly connected to the outer surface of the rotating shaft 202, a motor 204 and a feed pipe 205 are fixedly connected to the top of the box body 1, the output shaft of the motor 204 is fixedly connected to the rotating shaft 202, and the feed pipe 205 extends into the screening barrel 201.

[0034] Pour the concrete raw materials into the screening barrel 201 through the feed pipe 205, start the motor 204, the motor 204 drives the rotating shaft 202 and the blades 203 to rotate in the screening barrel 201, the blades 203 push the concrete raw materials to move in the screening barrel 201, the qualified concrete raw materials are extruded and thrown out from the side wall of the screening barrel 201 and fall into the box body 1, and the unqualified concrete raw materials and impurities will be blocked by the screening barrel 201 and start to fall under the action of gravity.

[0035] In one embodiment, for the above-mentioned secondary screening component 3, the secondary screening component 3 includes a square pipe 301, the upper end of the square pipe 301 is fixedly connected to the screening barrel 201, a slot 302 is opened at the bottom of the square pipe 301, a screen 303 is fixedly connected to the inside of the slot 302, and the lower end of the square pipe 301 extends to the outside of the box body 1.

[0036] The unqualified concrete raw materials and impurities fall into the square pipe 301 from below the screening barrel 201. Inevitably, some qualified concrete raw materials will be carried during this process. The qualified concrete raw materials can pass through the screen 303 at the bottom of the square pipe 301 and fall into the box body 1, and the unqualified concrete raw materials and impurities are blocked by the screen 303 and discharged along the square pipe 301 to the outside of the box body 1.

[0037] In one embodiment, for the above-mentioned guiding component 4, the guiding component 4 includes a first guiding plate 401 and a second guiding plate 402. Both the first guiding plate 401 and the second guiding plate 402 are fixedly connected to the inside of the box body 1. Both the first guiding plate 401 and the second guiding plate 402 are in an inverted conical shape, and an arc-shaped boss 403 is fixedly connected to the outer surface of the square pipe 301.

[0038] The qualified concrete raw materials falling into the box body 1 continue to fall under the guiding action of the first guiding plate 401. Some of the raw materials in the box body 1 will fall on the arc-shaped boss 403 and fall along the arc-shaped boss 403. Finally, the second guiding plate 402 will concentrate the raw materials at the feeding component 5. Through the setting of the arc-shaped boss 403, the upper surface of the square pipe 301 can have a certain curvature, avoiding the accumulation of raw materials on the surface of the square pipe 301.

[0039] In one embodiment, for the above-mentioned feeding component 5, the feeding component 5 includes a feeding pipe 501. A baffle 502 is slidably connected to the inside of the feeding pipe 501. A conveyor belt 503 is arranged at the bottom of the feeding pipe 501. The feeding pipe 501 is fixedly connected to the bottom of the box body 1.

[0040] The qualified concrete raw materials are gathered at the feeding pipe 501. Pull the baffle 502 to move so that the feeding pipe 501 is in a conducting state. At this time, the qualified concrete raw materials can fall along the feeding pipe 501 onto the conveyor belt 503. Starting the conveyor belt 503 can convey the concrete raw materials.

[0041] In one embodiment, for the above-mentioned baffle 502, a handle 6 is fixedly connected to the outer surface of the baffle 502.

[0042] In one embodiment, for the above-mentioned box body 1, legs 7 are fixedly connected to the bottom of the box body 1, and a square plate 8 is fixedly connected to the bottom of the legs 7.

[0043] The setting of the handle 6 facilitates the staff to pull the baffle 502 to move. The legs 7 and the square plate 8 can support the box body 1 to make it have a certain height from the ground, facilitating the setting of the conveyor belt 503 below the box body 1.

[0044] Through the above technical solutions: 1. By connecting the primary screening component 2 and the secondary screening component 3, during the rotation of the primary screening component 2, the qualified concrete raw materials can be extruded and thrown out from its side wall into the box body 1. The unqualified concrete raw materials and impurities fall into the secondary screening component 3 below the primary screening component 2 under the action of gravity. Inevitably, some qualified concrete raw materials will be carried during this process. The qualified concrete raw materials pass through the secondary screening component 3 and fall into the box body 1, while the unqualified concrete raw materials and impurities are blocked by the secondary screening component 3 and slide along the secondary screening component 3 to the outside of the box body 1, thus realizing automatic screening without the need for manual cleaning of impurities by staff, which is relatively convenient to use. 2. By connecting the screening barrel 201 and the square pipe 301, the blades 203 push the concrete raw materials to move inside the screening barrel 201. Some qualified concrete raw materials can be moved out from the side of the screening barrel 201 and fall into the box body 1. The unqualified concrete and impurities fall along the screening barrel 201 into the square pipe 301 under the action of gravity. Another part of the qualified concrete driven during this process can pass through the screen 303 at the bottom of the square pipe 301 and fall into the box body 1, while the unqualified concrete and impurities are blocked by the screen 303 and discharged along the square pipe 301 to the outside of the box body 1, thus realizing the automatic screening of concrete raw materials without the need for manual cleaning of impurities by staff, which is relatively convenient to use.

[0045] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0046] The preferred embodiments of the utility model disclosed above are only used to help illustrate the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the utility model, so that those skilled in the relevant technical field can understand and utilize the utility model well. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A screening device for concrete raw materials, comprising a box (1), characterized in that: A primary screening component (2) is arranged inside the box (1), a secondary screening component (3) is fixedly connected to the bottom of the primary screening component (2), a guide component (4) is fixedly connected to the inside of the box (1), and a discharge component (5) is fixedly connected to the bottom of the box (1), the primary screening component (2) and the secondary screening component (3) are used to screen concrete raw materials, the guide component (4) is used to guide the direction of qualified concrete raw materials, and the discharge component (5) is used to discharge qualified concrete raw materials.

2. A screening device for concrete raw materials according to claim 1, characterized in that: The primary screening component (2) comprises a screening barrel (201), the screening barrel (201) being fixedly connected to the interior of a casing (1), the interior of the screening barrel (201) being rotatably connected to a rotating shaft (202), the outer surface of the rotating shaft (202) being fixedly connected to blades (203), the top of the casing (1) being fixedly connected to a motor (204) and a feed pipe (205), the output shaft of the motor (204) being fixedly connected to the rotating shaft (202), and the feed pipe (205) extending to the interior of the screening barrel (201).

3. A screening device for concrete raw materials according to claim 2, characterized in that: The second screen assembly (3) comprises a square tube (301), the upper end of the square tube (301) is fixedly connected to the screening barrel (201), a notch (302) is provided at the bottom of the square tube (301), a screen (303) is fixedly connected inside the notch (302), and the lower end of the square tube (301) extends to the outside of the box body (1).

4. A screening device for concrete raw materials according to claim 3, characterized in that: The guide assembly (4) comprises a first guide plate (401) and a second guide plate (402), the first guide plate (401) and the second guide plate (402) are both fixedly connected to the inside of the box body (1), the first guide plate (401) and the second guide plate (402) are both in an inverted cone shape, and an arc-shaped boss (403) is fixedly connected to the outer surface of the square tube (301).

5. A screening device for concrete raw materials according to claim 4, characterized in that: The material discharge assembly (5) comprises a material discharge pipe (501), a baffle (502) is slidably connected inside the material discharge pipe (501), a conveyor belt (503) is arranged at the bottom of the material discharge pipe (501), and the material discharge pipe (501) is fixedly connected to the bottom of the box body (1).

6. A screening device for concrete raw materials according to claim 5, characterized in that: A handle (6) is fixedly connected to the outer surface of the baffle (502).

7. A concrete raw material screening device according to claim 6, characterized in that: The bottom of the box body (1) is fixedly connected to a support leg (7), and the bottom of the support leg (7) is fixedly connected to a square plate (8).

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