Raw material screening device for concrete
By designing anti-blocking screening mechanism and dust-proof mechanism in the concrete raw material screening device, the problems of screen clogging and dust pollution are solved, and efficient screening and environmentally friendly treatment are achieved.
Patent Information
- Application Number
- CN202421495085.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-06-27
AI Technical Summary
When existing screening devices are used for a long time, due to the diversity of sand and gravel raw materials, the screening holes are easily blocked, affecting the screening efficiency.
A concrete raw material screening device is designed, including an anti-blocking screening mechanism and a dust-proof mechanism. The anti-blocking screening mechanism includes screening mesh plates, vibration components and anti-blocking pushing components. Through the cooperation of vibration and pushing brush rods, sand and gravel raw materials stuck on the screen are quickly screened and moved to prevent blockage. The dustproof mechanism absorbs and concentrates the dust generated during the screening process through a dust box, a pump and a vacuum pipe.
It effectively avoids blockage of screening mesh panels, improves screening efficiency, and reduces the pollution of dust to the environment and personnel through vacuuming.
Smart Images
Figure CN222830102U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of raw material screening devices, and in particular to a raw material screening device for concrete. Background Art
[0002] Concrete, abbreviated as "concrete", is a general term for engineering composite materials in which aggregates are bonded into a whole by cementitious materials. The term concrete usually refers to cement as a cementitious material, sand and stone as aggregates; mixed with water (which may contain admixtures and additives) in a certain proportion and stirred to obtain cement concrete, also known as ordinary concrete. It is widely used in civil engineering. In the production process of concrete, sand and gravel of different sizes will affect the quality of concrete. Therefore, screening devices are often used in the production process to screen and grade the size of sand and gravel raw materials.
[0003] When the existing screening device screens the sand and gravel raw materials, the sand and gravel raw materials are usually poured into a container equipped with a screening net, and then the sand and gravel raw materials with smaller sizes fall to the bottom of the container through the screening net, while the sand and gravel raw materials with larger sizes are retained on the net, thereby achieving the effect of screening and grading sand and gravel raw materials of different sizes;
[0004] However, when the above method is used for screening, due to the variety of sizes of sand and gravel raw materials, when the screen is used to screen the sand and gravel raw materials for a long time, some of the sand and gravel raw materials are often almost the same size as the filter holes of the screen, so they are accumulated and stuck on the filter holes of the screen, which in turn causes the filter holes of the screen to be blocked, affecting the normal filtering and screening, and reducing the screening efficiency. Therefore, those skilled in the art provide a raw material screening device for concrete to solve the problems raised in the above background technology. Utility Model Content
[0005] In order to solve the problems raised in the above background technology, the present application provides a raw material screening device for concrete.
[0006] The present application provides a concrete raw material screening device adopts the following technical solution:
[0007] A concrete raw material screening device comprises a screening box, a plurality of supporting legs are fixedly connected to the bottom of the screening box, a feeding port is opened on the top of the screening box, a fine material port is opened on the side wall of the screening box, a coarse material port is opened on the bottom of the screening box, and further comprises
[0008] The anti-blocking screening mechanism is located on the inner wall of the screening box and is used for rapid screening of sand and gravel raw materials and for anti-blocking;
[0009] A dust prevention mechanism, which is located on the side wall of the screening box and is used to absorb and concentrate the generated dust;
[0010] The anti-blocking screening mechanism includes a screening mesh, a vibration component and an anti-blocking pushing component. The bottom of the screening mesh is installed on the inner wall of the screening box through two buffer components, the vibration component is installed at the bottom center of the screening mesh, and the anti-blocking pushing component is installed on the top of the screening mesh.
[0011] Preferably, the buffer assembly includes a support plate, two buffer rods and two buffer springs, the side wall of the support plate is fixedly connected to the inner wall of the screening box, the bottoms of the two buffer rods are symmetrically fixedly connected to the top of the support plate, the bottom of the screening mesh plate is slidably connected to the tops of the two buffer rods, and the two ends of the two buffer springs are respectively fixedly connected to the top of the support plate and the bottom of the screening mesh plate.
[0012] Preferably, the vibration assembly includes a vibration plate and a vibration motor, the top of the vibration plate is fixedly connected to the bottom center of the screening mesh plate, and the vibration motor is fixedly connected to the bottom center of the vibration plate.
[0013] Preferably, the anti-blocking pushing assembly includes two movable slide rails, two movable sliders, two first electric push rods and a pushing brush rod, the bottoms of the two movable slide rails are symmetrically fixedly connected to the top of the screening mesh plate, the two ends of the pushing brush rod are respectively slidably connected to the side walls of the two movable slide rails through two movable sliders, the two first electric push rods are respectively fixedly connected to one end of the two movable slide rails, and the output ends of the two first electric push rods are respectively fixedly connected to the side walls of the two movable sliders.
[0014] Preferably, the anti-blocking screening mechanism also includes a sealing assembly, which includes a second electric push rod and a sealing door plate, the second electric push rod is fixedly connected to the top inner side of the screening box, and the sealing door plate is slidably connected to the top inner side of the screening box and fixedly connected to the output end of the second electric push rod.
[0015] Preferably, the dust prevention mechanism includes a dust box, an air suction pump, a cleaning door and a dust suction pipe, the side wall of the dust box is fixedly connected to the side wall of the screening box, the air suction pump is fixedly connected to the top of the dust box, the cleaning door is installed on the other side of the dust box, and the dust suction pipe is fixedly connected to the side wall of the dust box by passing through the side wall of the screening box and is communicated with the dust box.
[0016] In summary, this application includes the following beneficial technical effects:
[0017] By setting up an anti-blocking screening mechanism, it is possible to facilitate rapid vibration screening of sand and gravel raw materials while pushing and sweeping the sand and gravel raw materials stuck on the screening mesh, thereby effectively avoiding the screening mesh being stuck by the accumulation of sand and gravel raw materials and causing blockage to affect normal filtration and screening. Therefore, it is convenient for normal screening and effectively improves the screening efficiency. In addition, by setting up a dust-proof mechanism, it is convenient to adsorb and absorb the dust generated during the screening process, thereby achieving the purpose of preventing dust from polluting and harming the surrounding environment and workers. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of a raw material screening device for concrete in an embodiment of the present application;
[0019] Figure 2 It is a structural cross-sectional view of a raw material screening device for concrete in an embodiment of the present application;
[0020] Figure 3 It is a bottom-up cross-sectional view of a partial structure of an anti-blocking screening mechanism of a concrete raw material screening device in an embodiment of the present application;
[0021] Figure 4 It is a top view of the partial structure of an anti-blocking screening mechanism of a concrete raw material screening device in an embodiment of the present application.
[0022] Explanation of the reference numerals: 1. Screening box; 101. Support leg; 102. Feed inlet; 103. Fine material inlet; 104. Coarse material inlet; 2. Anti-blocking screening mechanism; 201. Screening mesh plate; 3. Vibration assembly; 301. Vibration plate; 302. Vibration motor; 4. Buffer assembly; 401. Support plate; 402. Buffer rod; 403. Buffer spring; 5. Anti-blocking pushing assembly; 501. Moving slide rail; 502. Moving slider; 503. First electric push rod; 504. Pushing brush rod; 6. Sealing assembly; 601. Second electric push rod; 602. Sealing door panel; 7. Dust prevention mechanism; 701. Dust box; 702. Vacuum pump; 703. Cleaning door; 704. Dust suction pipe. DETAILED DESCRIPTION
[0023] The following is combined with Figure 1-4 This application is described in further detail.
[0024] The present application embodiment discloses a raw material screening device for concrete. Figure 3 Figure 4 A concrete raw material screening device comprises a screening box 1, a plurality of supporting legs 101 are fixedly connected to the bottom of the screening box 1, a feed inlet 102 is provided on the top of the screening box 1, a fine material inlet 103 is provided on the side wall of the screening box 1, a coarse material inlet 104 is provided on the bottom of the screening box 1, and further comprises
[0025] The anti-blocking screening mechanism 2 is located on the inner wall of the screening box 1 and is used for rapid screening of sand and gravel raw materials and for anti-blocking;
[0026] A dust prevention mechanism 7, which is located on the side wall of the screening box 1, and is used to absorb and concentrate the generated dust;
[0027] The anti-blocking screening mechanism 2 includes a screening mesh plate 201, a vibration component 3 and an anti-blocking pushing component 5. The bottom of the screening mesh plate 201 is mounted on the inner wall of the screening box 1 through two buffer components 4, the vibration component 3 is mounted at the bottom center of the screening mesh plate 201, and the anti-blocking pushing component 5 is mounted on the top of the screening mesh plate 201;
[0028] The buffer assembly 4 includes a support plate 401, two buffer rods 402 and two buffer springs 403. The side wall of the support plate 401 is fixedly connected to the inner wall of the screening box 1. The bottoms of the two buffer rods 402 are symmetrically fixedly connected to the top of the support plate 401. The bottom of the screening mesh plate 201 is slidably connected to the tops of the two buffer rods 402. The two ends of the two buffer springs 403 are respectively fixedly connected to the top of the support plate 401 and the bottom of the screening mesh plate 201.
[0029] The vibration assembly 3 includes a vibration plate 301 and a vibration motor 302. The top of the vibration plate 301 is fixedly connected to the bottom center of the screening screen plate 201, and the vibration motor 302 is fixedly connected to the bottom center of the vibration plate 301.
[0030] The anti-blocking pushing assembly 5 includes two movable slide rails 501, two movable sliders 502, two first electric push rods 503 and a pushing brush rod 504. The bottoms of the two movable slide rails 501 are symmetrically fixedly connected to the top of the screening screen 201, and the two ends of the pushing brush rod 504 are respectively slidably connected to the side walls of the two movable slide rails 501 through the two movable sliders 502. The two first electric push rods 503 are respectively fixedly connected to one end of the two movable slide rails 501, and the output ends of the two first electric push rods 503 are respectively fixedly connected to the side walls of the two movable sliders 502.
[0031] The anti-blocking screening mechanism 2 also includes a blocking assembly 6, which includes a second electric push rod 601 and a blocking door plate 602, wherein the second electric push rod 601 is fixedly connected to the inner side of the top of the screening box 1, and the blocking door plate 602 is slidably connected to the inner side of the top of the screening box 1 and is fixedly connected to the output end of the second electric push rod 601;
[0032] In this embodiment, the sand and gravel materials to be screened are firstly put into the screening box 1 from the opening of the feed port 102, and then the second electric push rod 601 is extended to drive the blocking door plate 602 connected thereto to fall, and the sand and gravel materials are blocked above the screening mesh plate 201 by the falling of the blocking door plate 602. At this time, the vibration motor 302 is started to provide a force to drive the vibration plate 301 to vibrate, and the vibration of the vibration plate 301 drives the screening mesh plate 201 connected thereto to be subjected to force on the support plate 4. 01 supports the fixed buffer rod 402 to slide up and down and vibrate, and the screening mesh plate 201 vibrates to vibrate the sand and gravel materials thereon, so that the sand and gravel materials can quickly pass through the screening mesh plate 201 during the vibration to screen and separate the sand and gravel materials of different sizes, and the buffer spring 403 is provided to provide a reaction force to buffer and damp the impact force of the screening mesh plate 201 during vibration, thereby providing shock-absorbing protection for the screening box 1. At this time, the smaller fine materials will be filtered out through the screening mesh plate 201 and filtered out through the opened fine material port 103 discharges the sand and gravel materials of smaller size from the screening box 1, and when the screening is used for a long time, the two first electric push rods 503 controlled by the same control system start to extend and retract, thereby driving the two moving slide blocks 502 to move back and forth on the two moving slide rails 501 respectively, and the two moving slide blocks 502 move back and forth to drive the push brush rod 504 to move back and forth following the top of the screening mesh plate 201, and the push brush rod 504 moves back and forth to remove the sand and gravel materials accumulated on the screening mesh plate 201. The filter screen 201 is pushed and swept to avoid clogging of the filter holes of the screening mesh 201. After screening is completed, the second electric push rod 601 is started to retract to drive the blocking door plate 602 to move upward. At this time, the larger sand and gravel materials can be pushed away from the screening mesh 201 and discharged from the coarse material port 104 by moving the pushing brush rod 504. In this way, it is convenient to quickly oscillate and screen the sand and gravel materials while effectively avoiding the screening mesh 201 being stuck by the accumulation of sand and gravel materials, thereby causing blockage and affecting the normal filtering and screening effect.
[0033] Further, the dust prevention mechanism 7 includes a dust box 701, an air pump 702, a cleaning door 703 and a dust suction pipe 704, the side wall of the dust box 701 is fixedly connected to the side wall of the screening box 1, the air pump 702 is fixedly connected to the top of the dust box 701, the cleaning door 703 is installed on the other side of the dust box 701, and the dust suction pipe 704 is fixedly connected to the side wall of the dust box 701 by penetrating the side wall of the screening box 1 and is communicated with the dust box 701;
[0034] On the basis of the above embodiment, while the sand and gravel raw materials are vibrated and screened by the screening mesh plate 201, the vacuum pump 702 is started to provide suction to suck the dust particles generated during the vibration and screening of the sand and gravel raw materials into the dust box 701 through the dust suction pipe 704 for centralized storage, and then the collected dust particles can be centrally cleaned by opening the cleaning door 703, thereby facilitating the adsorption and absorption of the dust generated during the screening process, thereby preventing the dust from polluting and harming the surrounding environment and workers.
[0035] The implementation principle of a raw material screening device for concrete in the embodiment of the present application is as follows: when in use, first, the sand and gravel raw materials to be screened are put into the screening box 1 from the opened feed port 102, and then, the second electric push rod 601 is extended to drive the blocking door plate 602 connected thereto to fall, and the blocking door plate 602 falls to block the sand and gravel raw materials above the screening mesh plate 201. At this time, the vibration motor 302 is started to provide a force to drive the vibration plate 301 to vibrate, and the vibration of the vibration plate 301 drives the screening mesh plate 201 connected thereto to slide up and down and vibrate on the buffer rod 402 supported and fixed by the support plate 401, and the screening mesh plate 201 is moved by the vibration of the vibration plate 301. The plate 201 vibrates to vibrate the sand and gravel materials thereon, so that the sand and gravel materials can quickly pass through the screening mesh plate 201 during the vibration to screen and separate the sand and gravel materials of different sizes, and the buffer spring 403 provides a reaction force to buffer and damp the impact force of the vibration of the screening mesh plate 201, thereby providing shock absorption protection for the screening box 1. At this time, the fine materials with smaller sizes will be filtered out through the screening mesh plate 201, and the sand and gravel materials with smaller sizes will be discharged from the screening box 1 through the opened fine material port 103. In addition, when the screening is used for a long time, the two first electric push rods 503 controlled by the same control system start to extend and retract, thereby driving the two moving sliders 50 2 respectively move back and forth on the two moving slide rails 501, and the two moving sliders 502 move back and forth to drive the pushing brush rod 504 to move back and forth following the top of the screening mesh plate 201. The pushing brush rod 504 moves back and forth to push and sweep the sand and gravel materials accumulated on the screening mesh plate 201 to avoid clogging the filter holes of the screening mesh plate 201. After the screening is completed, the second electric push rod 601 is started to shrink to drive the blocking door plate 602 to move upward. At this time, the pushing brush rod 504 moves to push the sand and gravel materials with larger sizes away from the screening mesh plate 201 and discharge them from the coarse material opening 104, so that effective It is convenient for the rapid vibration screening of the sand and gravel raw materials while effectively avoiding the screening screen 201 being stuck by the accumulation of sand and gravel raw materials, thereby causing blockage and affecting the normal filtering and screening. Secondly, while the sand and gravel raw materials are vibrated and screened by the screening screen 201, the vacuum pump 702 is started to provide suction to suck the dust particles generated during the vibration screening of the sand and gravel raw materials into the dust box 701 through the dust suction pipe 704 for centralized storage, and then the collected dust particles can be centralized cleaned by opening the cleaning door 703, thereby achieving the purpose of effectively facilitating the adsorption and absorption of the dust generated during the screening process and avoiding the pollution and harm of the surrounding environment and workers caused by dust.
[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A concrete raw material screening device, comprising a screening box (1), characterized in that: The bottom of the screening box (1) is fixedly connected to a plurality of supporting legs (101), the top of the screening box (1) is provided with a feed inlet (102), the side wall of the screening box (1) is provided with a fine material inlet (103), the bottom of the screening box (1) is provided with a coarse material inlet (104), and further comprises An anti-blocking screening mechanism (2) is located on the inner wall of the screening box (1) and is used for rapid screening of sand and gravel raw materials and for preventing blockage; A dust prevention mechanism (7), which is located on the side wall of the screening box (1) and is used to absorb and concentrate the generated dust; The anti-blocking screening mechanism (2) comprises a screening mesh plate (201), a vibration component (3) and an anti-blocking pushing component (5); the bottom of the screening mesh plate (201) is mounted on the inner wall of the screening box (1) via two buffer components (4); the vibration component (3) is mounted at the bottom center of the screening mesh plate (201); and the anti-blocking pushing component (5) is mounted on the top of the screening mesh plate (201).
2. A concrete raw material screening device according to claim 1, characterized in that: The buffer assembly (4) comprises a support plate (401), two buffer rods (402) and two buffer springs (403); the side wall of the support plate (401) is fixedly connected to the inner wall of the screening box (1); the bottoms of the two buffer rods (402) are symmetrically fixedly connected to the top of the support plate (401); the bottom of the screening mesh plate (201) is slidably connected to the tops of the two buffer rods (402); and the two ends of the two buffer springs (403) are respectively fixedly connected to the top of the support plate (401) and the bottom of the screening mesh plate (201).
3. The raw material screening device for concrete according to claim 1, characterized in that: The vibration assembly (3) comprises a vibration plate (301) and a vibration motor (302), wherein the top of the vibration plate (301) is fixedly connected to the bottom center of the screening screen plate (201), and the vibration motor (302) is fixedly connected to the bottom center of the vibration plate (301).
4. The raw material screening device for concrete according to claim 1, characterized in that: The anti-blocking pushing assembly (5) comprises two movable slide rails (501), two movable sliders (502), two first electric push rods (503) and a pushing brush rod (504); the bottoms of the two movable slide rails (501) are symmetrically fixedly connected to the top of the screening screen (201); the two ends of the pushing brush rod (504) are respectively slidably connected to the side walls of the two movable slide rails (501) through the two movable sliders (502); the two first electric push rods (503) are respectively fixedly connected to one end of the two movable slide rails (501); and the output ends of the two first electric push rods (503) are respectively fixedly connected to the side walls of the two movable sliders (502).
5. The device for screening raw materials of concrete according to claim 1, characterized in that: The anti-blocking screening mechanism (2) also includes a blocking component (6), and the blocking component (6) includes a second electric push rod (601) and a blocking door plate (602), wherein the second electric push rod (601) is fixedly connected to the inner side of the top of the screening box (1), and the blocking door plate (602) is slidably connected to the inner side of the top of the screening box (1) and is fixedly connected to the output end of the second electric push rod (601).
6. The device for screening raw materials of concrete according to claim 1, characterized in that: The dust prevention mechanism (7) comprises a dust box (701), an air pump (702), a cleaning door (703) and a dust suction pipe (704); the side wall of the dust box (701) is fixedly connected to the side wall of the screening box (1); the air pump (702) is fixedly connected to the top of the dust box (701); the cleaning door (703) is installed on the other side of the dust box (701); and the dust suction pipe (704) is fixedly connected to the side wall of the dust box (701) by passing through the side wall of the screening box (1) and is communicated with the dust box (701).