Screening equipment for autoclaved fly ash-lime brick production

Abstract

The utility model provides material screening equipment for autoclaved fly ash-lime brick production, which comprises a box body, a feed hopper used for preventing dust in the box body from floating upwards is arranged at the top of the box body in a penetrating manner, a screen frame is rotatably arranged in the box body, and a screen is arranged on the inner wall of the screen frame; when the fly-ash brick screening device is used, due to the arrangement of the feeding hopper, dust drifting away from the box body is prevented from drifting away from the outside through the feeding hopper, the dust suppression effect of the screening device is preliminarily improved, when fly-ash brick raw materials fall on the screen, the vibration mechanism vibrates to enable the screen to vibrate, the screening efficiency of the screen on fly-ash bricks is improved, and the screening efficiency of the fly-ash bricks is improved. Meanwhile, a first driving mechanism drives a lifting mechanism to operate, one end of a screen frame is lifted, the inclination angle of a screen is changed, the screening efficiency is further improved, an air suction mechanism generates negative pressure through rotation of blades, air in a box body is extracted, air containing dust passes through a dust filtering bag, dust is collected by the dust filtering bag, and purified air is exhausted; and dust dissipation is effectively inhibited.

Description

Technical Field

[0001] The utility model relates to the technical field of screening equipment, in particular to screening equipment for producing autoclaved fly ash bricks. Background Art

[0002] Autoclaved fly ash brick is a new type of building material, which is made of fly ash, cement and other additives through autoclaving. It has the characteristics of hard texture, high compressive strength, wear resistance and corrosion resistance, and is suitable for building walls, floor paving and other fields. Autoclaved fly ash brick can not only effectively utilize industrial waste resources, but also is beneficial to environmental protection and energy saving. It is a new type of building material with broad market prospects.

[0003] In the production process of fly ash bricks, screening is a key link to ensure uniform particle size of raw materials and improve the quality of bricks. However, existing fly ash screening equipment generally has problems such as serious dust emission, low screening efficiency, and inconvenient maintenance, which affects the production environment and workers' health and is not conducive to the effective use of resources. Therefore, it is of great practical significance to design a screening equipment for the production of autoclaved fly ash bricks that can effectively suppress dust, improve screening efficiency, and is easy to maintain. Utility Model Content

[0004] The utility model aims to provide a screening device for the production of autoclaved fly ash bricks, which realizes efficient screening of fly ash and effective suppression of dust by arranging structures such as a feed hopper, a screen frame, a vibration mechanism, a lifting mechanism, an air suction mechanism, and a dust collecting mechanism, thereby improving the working environment and increasing resource utilization.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a screening device for the production of autoclaved fly ash bricks, comprising a box body, a feeding hopper for preventing dust in the box body from floating upward is arranged through the top of the box body, a screen frame is rotatably arranged inside the box body, a screen mesh is arranged on the inner wall of the screen frame, a vibration mechanism for vibrating the screen mesh is arranged inside the screen mesh, limit plates for limiting the top of the screen frame are arranged at both ends of the interior of the box body, a lifting mechanism for lifting one end of the screen frame is rotatably arranged inside the box body, a first driving mechanism for driving the lifting mechanism to move is arranged on the outside of the box body, an air suction mechanism for extracting air inside the box body is arranged on the front and back sides of the box body, and a dust collecting mechanism for collecting dust in the air inside the box body is arranged on the air suction mechanism.

[0006] Preferably, the lifting mechanism includes an eccentric wheel, a connecting rod and a column, the eccentric wheel is rotatably arranged inside the box, the connecting rod is rotatably arranged on the eccentric wheel, the top end of the column is rotatably connected to the connecting rod, and the bottom end of the column passes through a limit plate at one end of the box and is connected to the top of one end of the screen frame.

[0007] Preferably, a dust shield is symmetrically rotatably arranged inside the feed hopper, a torsion spring is arranged at the bottom of the dust shield, and the other end of the torsion spring is connected to the inner wall of the feed hopper.

[0008] Preferably, the first driving mechanism is a first motor arranged outside the box, and the output end of the first motor passes through the inside of the box and is connected to the eccentric wheel.

[0009] Preferably, the air suction mechanism is an air suction shell symmetrically arranged on the front and back sides of the box body, a rotating shaft is arranged inside the air suction shell, a plurality of groups of blades are arranged outside the rotating shaft, and a second driving mechanism for driving the rotating shaft to rotate inside the air suction shell is arranged outside the air suction shell.

[0010] Preferably, the second driving mechanism is a second motor arranged outside the air extraction shell, and the output end of the second motor passes through the interior of the air extraction shell and is connected to the end of the rotating shaft.

[0011] Preferably, both the front and back sides of the box are provided with suction ports for the suction mechanism to extract the air inside the box.

[0012] Preferably, the dust collecting mechanism is a dust filter bag arranged at the bottom of the exhaust shell.

[0013] Preferably, the vibration mechanism is a protective shell arranged at the bottom of the screen, and a vibration motor is arranged inside the protective shell.

[0014] Preferably, support legs are provided at the four corners of the bottom of the box.

[0015] The beneficial effects of the utility model are:

[0016] 1. When the utility model is in use, the setting of the feed hopper prevents the dust in the box from being dispersed to the outside through the feed hopper and causing pollution to the external environment, and preliminarily improves the dust suppression effect of the screening equipment. When the fly ash brick raw material falls on the screen, the vibration mechanism generates vibration to make the screen vibrate, thereby improving the screening efficiency of the screen for fly ash bricks. At the same time, the lifting mechanism is driven by the first driving mechanism to operate, so that one end of the screen frame is lifted and lowered, and the inclination angle of the screen is changed, thereby further improving the screening efficiency. The suction mechanism generates negative pressure through the rotation of the blades, and draws air from the inside of the box. The air containing dust is collected by the dust filter bag through the filter bag, and the purified air is discharged, thereby effectively suppressing the escape of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0019] Figure 3It is a schematic diagram of the cross-sectional structure of the air suction mechanism of the utility model.

[0020] Figure 4 The utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0021] Figure 5 The utility model Figure 2 Schematic diagram of the structure at point B in the middle.

[0022] In the figure: 1. box body; 2. screen; 3. vibration mechanism; 4. vibration motor; 5. limit plate; 6. lifting mechanism; 7. column; 8. connecting rod; 9. feed hopper; 10. dust shield plate; 11. torsion spring; 12. supporting leg; 13. first driving mechanism; 14. suction mechanism; 15. rotating shaft; 16. blades; 18. second driving mechanism; 19. exhaust port; 20. screen frame; 21. dust collecting mechanism. DETAILED DESCRIPTION

[0023] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 5 As shown, a screening device for the production of autoclaved fly ash bricks comprises a box body 1, a feeding hopper 9 for preventing dust in the box body 1 from floating upward is arranged through the top of the box body 1, a screen frame 20 is rotatably arranged inside the box body 1, a screen mesh 2 is arranged on the inner wall of the screen frame 20, a vibration mechanism 3 for vibrating the screen mesh 2 is arranged inside the screen mesh 2, limiting plates 5 for limiting the top of the screen frame 20 are arranged at both ends of the inside of the box body 1, a lifting mechanism 6 for lifting one end of the screen frame 20 is rotatably arranged inside the box body 1, a first driving mechanism 13 for driving the lifting mechanism 6 to move is arranged outside the box body 1, an air suction mechanism 14 for extracting air inside the box body 1 is arranged on the front and back sides of the box body 1, and a dust collecting mechanism 21 for collecting dust in the air inside the box body 1 is arranged on the air suction mechanism 14.

[0025] In this embodiment, the setting of the feed hopper 9 prevents the dust floating in the box body 1 from floating out to the outside through the feed hopper 9 and causing pollution to the external environment, and preliminarily improves the dust suppression effect of the screening equipment. When the fly ash brick raw material falls on the screen 2, the vibration mechanism 3 vibrates to vibrate the screen 2, thereby improving the screening efficiency of the screen 2 for fly ash bricks. At the same time, the lifting mechanism 6 is driven by the first driving mechanism 13 to operate, so that one end of the screen frame 20 is lifted and lowered, and the inclination angle of the screen 2 is changed, thereby further improving the screening efficiency. The suction mechanism 14 generates negative pressure through the rotation of the blades 16, and extracts the air inside the box body 1. The air containing dust is collected by the dust filter bag through the dust filter bag, and the purified air is discharged, thereby effectively suppressing the escape of dust.

[0026] like Figure 5As shown, the lifting mechanism 6 includes an eccentric wheel, a connecting rod 8 and a column 7. The eccentric wheel is rotatably arranged inside the box body 1, and the connecting rod 8 is rotatably arranged on the eccentric wheel. The top end of the column 7 is rotatably connected to the connecting rod 8, and the bottom end of the column 7 passes through the limit plate 5 at one end inside the box body 1 and is connected to the top of one end of the screen frame 20.

[0027] In this embodiment, the first driving mechanism 13 drives the eccentric wheel to rotate. When the eccentric wheel rotates, it drives one end of the screen frame 20 to rise and fall through the connecting rod 8 and the column 7 at a time, thereby achieving the purpose of controlling the rise and fall of one end of the screen frame 20.

[0028] like Figure 1 and Figure 4 As shown, a dust shield plate 10 is symmetrically rotated inside the feed hopper 9, a torsion spring 11 is provided at the bottom of the dust shield plate 10, and the other end of the torsion spring 11 is connected to the inner wall of the feed hopper 9. When too much fly ash brick raw material is accumulated on the dust shield plate 10, the dust shield plate 10 will apply pressure to the torsion spring 11, and at the same time, the dust shield plate 10 will rotate so that the fly ash raw material on the dust shield plate 10 falls onto the screen 2. When there is no fly ash brick raw material on the dust shield plate 10, the rebound force of the torsion spring 11 drives the dust shield plate 10 to reset and re-cover the feed hopper 9, thereby improving the dust suppression effect of the feed hopper 9.

[0029] Specifically, the first driving mechanism 13 is a first motor disposed outside the housing 1 , and an output end of the first motor passes through the interior of the housing 1 and is connected to an eccentric wheel.

[0030] like Figure 1 and Figure 3 As shown, the air suction mechanism 14 is an air suction shell symmetrically arranged on the front and back sides of the housing 1, a rotating shaft 15 is rotatably arranged inside the air suction shell, a plurality of groups of blades 16 are arranged outside the rotating shaft 15, and a second driving mechanism 18 for driving the rotating shaft 15 to rotate inside the air suction shell is arranged outside the air suction shell. By starting the second driving mechanism 18 to drive the rotating shaft 15 to rotate, the rotating shaft 15 drives the blades 16 to rotate, so that negative pressure is generated inside the air suction shell, thereby achieving the purpose of extracting air inside the housing 1.

[0031] Specifically, the second driving mechanism 18 is a second motor disposed outside the air extraction shell, and an output end of the second motor penetrates into the air extraction shell and is connected to the end of the rotating shaft 15 .

[0032] like Figure 3 As shown, the front and back sides of the box body 1 are both provided with suction ports 19 for the suction mechanism 14 to extract the air inside the box body 1 .

[0033] like Figure 1 and Figure 3 As shown, the dust collecting mechanism 21 is a dust filter bag arranged at the bottom of the exhaust shell, and the dust filter bag is used to collect dust in the air.

[0034] like Figure 2 As shown, the vibration mechanism 3 is a protective shell arranged at the bottom of the screen 2, and a vibration motor 4 is arranged inside the protective shell. The protective shell protects the vibration motor 4, and the screen 2 vibrates when the vibration motor 4 is started.

[0035] like Figure 1 As shown, support legs 12 are provided at the four corners of the bottom of the box body 1 , and the support legs 12 are used to support and fix the box body 1 .

[0036] Working principle: When in use, the setting of the feed hopper 9 prevents the dust floating in the box body 1 from floating out to the outside through the feed hopper 9 and causing pollution to the external environment, and initially improves the dust suppression effect of the screening equipment. When the fly ash brick raw material falls on the screen 2, the vibration mechanism 3 vibrates to vibrate the screen 2, thereby improving the screening efficiency of the screen 2 for fly ash bricks. At the same time, the lifting mechanism 6 is driven by the first driving mechanism 13 to operate, so that one end of the screen frame 20 is lifted and lowered, and the inclination angle of the screen 2 is changed, thereby further improving the screening efficiency. The suction mechanism 14 generates negative pressure through the rotation of the blades 16, and draws air from the box body 1. The air containing dust is collected by the dust filter bag through the dust filter bag, and the purified air is discharged, thereby effectively suppressing the escape of dust.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A screening device for producing autoclaved fly ash bricks, comprising: The box (1) is characterized in that a feed hopper (9) is provided through the top of the box (1) for preventing dust in the box (1) from floating upward, a screen frame (20) is rotatably provided inside the box (1), a screen (2) is provided on the inner wall of the screen frame (20), a vibration mechanism (3) is provided inside the screen (2) for causing the screen (2) to vibrate, and limiting plates (3) for limiting the top of the screen frame (20) are provided at both ends of the box (1). 5), a lifting mechanism (6) for lifting and lowering one end of the screen frame (20) is rotatably provided inside the box (1), a first driving mechanism (13) for driving the lifting mechanism (6) to move is provided outside the box (1), and an air suction mechanism (14) for extracting air from inside the box (1) is provided on the front and back sides of the box (1), and a dust collecting mechanism (21) for collecting dust in the air inside the box (1) is provided on the air suction mechanism (14).

2. The screening equipment for producing autoclaved fly ash bricks according to claim 1, characterized in that: The lifting mechanism (6) comprises an eccentric wheel, a connecting rod (8) and a column (7); the eccentric wheel is rotatably arranged inside the box body (1); the connecting rod (8) is rotatably arranged on the eccentric wheel; the top end of the column (7) is rotatably connected to the connecting rod (8); and the bottom end of the column (7) passes through a limit plate (5) at one end of the box body (1) and is connected to the top end of one end of the screen frame (20).

3. The screening equipment for producing autoclaved fly ash bricks according to claim 1, characterized in that: A dust shield (10) is symmetrically arranged inside the feed hopper (9), a torsion spring (11) is arranged at the bottom of the dust shield (10), and the other end of the torsion spring (11) is connected to the inner wall of the feed hopper (9).

4. The screening equipment for producing autoclaved fly ash bricks according to claim 1, characterized in that: The first driving mechanism (13) is a first motor arranged outside the box (1), and the output end of the first motor passes through the inside of the box (1) and is connected to the eccentric wheel.

5. The screening equipment for producing autoclaved fly ash bricks according to claim 1, characterized in that: The air suction mechanism (14) is an air suction shell symmetrically arranged on the front and back sides of the housing (1); a rotating shaft (15) is rotatably arranged inside the air suction shell; a plurality of groups of blades (16) are arranged outside the rotating shaft (15); and a second driving mechanism (18) for driving the rotating shaft (15) to rotate inside the air suction shell is arranged outside the air suction shell.

6. The screening equipment for producing autoclaved fly ash bricks according to claim 5, characterized in that: The second driving mechanism (18) is a second motor arranged outside the air extraction shell, and the output end of the second motor penetrates into the interior of the air extraction shell and is connected to the end of the rotating shaft (15).

7. The screening equipment for producing autoclaved fly ash bricks according to any one of claims 1 or 5, characterized in that: The front and back sides of the box body (1) are both provided with air suction ports (19) for the air suction mechanism (14) to extract the air inside the box body (1).

8. The screening equipment for producing autoclaved fly ash bricks according to claim 1, characterized in that: The dust collecting mechanism (21) is a dust filter bag arranged at the bottom of the exhaust shell.

9. The screening equipment for producing autoclaved fly ash bricks according to claim 1, characterized in that: The vibration mechanism (3) is a protective shell arranged at the bottom of the screen (2), and a vibration motor (4) is arranged inside the protective shell.

10. The screening equipment for producing autoclaved fly ash bricks according to claim 1, characterized in that: Support legs (12) are provided at the four corners of the bottom of the box body (1).

Images