Fine grinding device for coarse fly ash

Abstract

The coarse fly ash grinding device comprises a discharging box, a grinding barrel and a grinding box, the grinding barrel is installed at the center of the top of the discharging box and communicated with the discharging box, the grinding box is installed at the top of the grinding barrel and communicated with the grinding barrel, a feeding port is formed in the top of the grinding box, and a discharging port is formed in the bottom of the discharging box; a material discharging buffering mechanism is arranged at the bottom of the discharging box, a first material grinding mechanism is arranged in the grinding box, a second material grinding mechanism is arranged in the grinding barrel, and a material screening mechanism is arranged in the discharging box. By arranging the grinding box and the grinding barrel, fly ash can be ground for multiple times, so that the fly ash grinding effect is improved, a third motor drives a rotating rod to rotate, the rotating rod rotates to drive two rotating shafts to rotate, and the two rotating shafts drive two second grinding rollers to rotate; furthermore, the fly ash can be ground again by matching with a second filter screen, so that the grinding effect on the fly ash is improved.

Description

Technical Field

[0001] The invention relates to the field of grinding technology, in particular to a fly ash coarse ash grinding device. Background Art

[0002] With the development of science and technology and the needs of modern industrial construction, the use of domestic Class I and Class II fly ash is becoming more and more extensive, especially in the building materials industry and concrete engineering construction. Fly ash is a major solid waste of thermal power plants. How to realize the comprehensive utilization of fly ash and develop a circular economy is a hot issue that power plants urgently need to solve, and it is also an important issue for environmental purification near the plant. When ultrafine ash and high-efficiency water reducer are used, high-strength mortar and high-fluidity high-performance concrete can be configured, and it has the characteristics of low fluidity loss and drying shrinkage. The water-reducing effect of ultrafine fly ash, the significant improvement of concrete workability, and the degree of increase in mortar or concrete strength are far beyond the reach of ordinary ground ash and commercial ash. It is a concrete mineral additive or cement admixture with high functional effects. Based on the above, it is necessary to provide a fly ash coarse ash grinding device that can effectively refine fly ash so that fly ash can be effectively used in concrete.

[0003] For example, the fly ash coarse ash grinding device disclosed in the authorization announcement number CN210787658U, although it performs grinding twice, greatly improving the grinding efficiency of the fly ash and facilitating subsequent utilization, does not have the function of screening the ground material, resulting in inconsistent final material size and reducing the use effect. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a fly ash coarse ash grinding device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A fly ash coarse ash grinding device comprises a feed box, a grinding barrel and a grinding box, wherein the grinding barrel is installed at the top center of the feed box and is connected, and the grinding box is installed at the top of the grinding barrel and is connected, a feed inlet is provided at the top of the grinding box, and a feed inlet is provided at the bottom of the feed box, a material feed buffer mechanism is provided at the bottom of the feed box, a first material grinding mechanism is provided inside the grinding box, a second material grinding mechanism is provided inside the grinding barrel, and a material screening mechanism is provided inside the feed box.

[0007] As a further technical solution of the present invention, the material unloading buffer mechanism includes a unloading plate, and the unloading plate is obliquely installed at the unloading port end of the unloading box, a collecting box is placed under the unloading box, an opening is opened on one side of the unloading box, and a collecting box is hung on one side of the unloading box.

[0008] As a further technical solution of the present invention, the first material grinding mechanism includes a first grinding roller, and there are two first grinding rollers that rotate horizontally inside a grinding box, two gears rotate and mesh at both ends of one side of the outside of the grinding box, and protrusions are horizontally installed on the sides of the two gears, and the other two ends of the two protrusions are respectively installed at the end centers of the two first grinding rollers, a first motor is installed on one side of the grinding box, and the output shaft of the first motor is installed at the top center of one of the first grinding rollers.

[0009] As a further technical solution of the present invention, the second material grinding mechanism includes a second filter, and the second filter is horizontally installed at the bottom end of the grinding barrel. A rotating rod is vertically rotated at the center of the top of the second filter, and a rotating shaft is horizontally rotated on a symmetrical side of the rotating rod, and second grinding rollers are horizontally installed at both ends away from the rotating shaft.

[0010] As a further technical solution of the present invention, a strip plate is horizontally installed at the center of the discharge box, a third motor is vertically installed on the top of the strip plate, and the output shaft of the third motor passes through the second filter and is installed at the center of the end of the rotating rod.

[0011] As a further technical solution of the present invention, the material screening mechanism includes a first filter and a second motor, and the first filter slides inside the discharge box and is tilted, telescopic rods are vertically installed at both ends of the bottom of the strip plate, and the telescopic ends of the two telescopic rods are respectively installed at the centers of the two ends of the top of the first filter.

[0012] As a further technical solution of the present invention, the second motor is horizontally installed inside the material box, and the output shaft of the second motor is installed with an eccentric wheel, and four ends of a symmetrical side of the material box are vertically installed with supporting legs.

[0013] Beneficial effects of the present invention:

[0014] 1. A fly ash coarse ash grinding device can grind the fly ash multiple times through the arrangement of a grinding box and a grinding barrel, thereby improving the grinding effect of the fly ash. First, the fly ash enters the grinding box from the feed inlet, and through the arrangement of a first motor and two gears, the two first grinding rollers can rotate in opposite directions to perform preliminary grinding of the fly ash. The fly ash ground by the grinding box will fall into the grinding barrel, and then the third motor will drive the rotating rod to rotate, and the rotation of the rotating rod will drive the two rotating shafts to rotate, and the two rotating shafts will drive the two second grinding rollers to rotate, and further the fly ash can be ground again in cooperation with the second filter screen, thereby improving the grinding effect of the fly ash.

[0015] 2. A fly ash coarse ash grinding device, which can filter and screen the ground fly ash through the setting of a first filter screen, ensuring that the fly ash collected in the collection box is of uniform size. In addition, through the setting of a discharge plate, it can buffer the fly ash when it falls, avoiding the occurrence of a large amount of dust when the fly ash falls directly from a high place. The eccentric wheel is driven to rotate by a second motor, and the rotation of the eccentric wheel will drive the first filter screen to move up and down, thereby vibrating the fly ash on the first filter screen and preventing the first filter screen from being blocked. The fly ash filtered by the first filter screen will be collected by the collection box through the opening and can be re-ground through the feed port, thereby improving the use effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a fly ash coarse ash grinding device according to the present invention;

[0017] Figure 2 is a rear structural schematic diagram of a fly ash coarse ash grinding device according to the present invention;

[0018] Figure 3 is a cross-sectional view of a feed box and a grinding box of a fly ash coarse ash grinding device according to the present invention;

[0019] Figure 4 It is a bottom view of a fly ash coarse ash grinding device according to the present invention.

[0020] In the figure: 1. feed box; 2. grinding barrel; 3. grinding box; 4. gear; 5. opening; 6. collecting box; 7. feed plate; 8. collecting box; 9. first motor; 10. first filter; 11. first grinding roller; 12. second motor; 13. eccentric wheel; 14. strip plate; 15. telescopic rod; 16. third motor; 17. rotating shaft; 18. rotating rod; 19. second filter; 20. second grinding roller. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-4A fly ash coarse ash grinding device comprises a feed box 1, a grinding barrel 2 and a grinding box 3. The grinding barrel 2 is installed at the top center of the feed box 1 and is connected to the grinding box 3. The grinding box 3 is installed at the top of the grinding barrel 2 and is connected to the grinding box 3. A feed inlet is provided at the top of the grinding box 3, and a feed inlet is provided at the bottom of the feed box 1. A material feed buffer mechanism is provided at the bottom of the feed box 1. A first material grinding mechanism is provided inside the grinding box 3. A second material grinding mechanism is provided inside the grinding barrel 2. A material screening mechanism is provided inside the feed box 1. Through the arrangement of the equipment, fly ash can be ground multiple times, thereby improving the grinding effect.

[0023] Reference Figure 1 and Figure 2 In a preferred embodiment, the material unloading buffer mechanism includes a unloading plate 7, and the unloading plate 7 is obliquely installed at the unloading port end of the unloading box 1, a collecting box 8 is placed under the unloading box 1, an opening 5 is opened on one side of the unloading box 1, and a collecting box 6 is hung on one side of the unloading box 1. Through the setting of the material unloading buffer mechanism, buffering can be performed during unloading to reduce dust.

[0024] Reference Figure 1 and Figure 3 In a preferred embodiment, the first grinding mechanism of the material includes a first grinding roller 11, and there are two first grinding rollers 11 that rotate horizontally inside the grinding box 3, and two gears 4 rotate and mesh at both ends of one side of the outside of the grinding box 3, and bosses are horizontally installed on the sides of the two gears 4, and the other two ends of the two bosses are respectively installed at the end centers of the two first grinding rollers 11, a first motor 9 is installed on one side of the grinding box 3, and the output shaft of the first motor 9 is installed at the top center of one of the first grinding rollers 11. Through the setting of the first grinding mechanism of the material, fly ash can be preliminarily ground.

[0025] Reference Figure 4 and Figure 3 In a preferred embodiment, the second material grinding mechanism includes a second filter screen 19, and the second filter screen 19 is horizontally installed at the bottom end of the grinding barrel 2, a rotating rod 18 is vertically rotated at the center of the top of the second filter screen 19, and a rotating shaft 17 is horizontally rotated on a symmetrical side of the rotating rod 18, and second grinding rollers 20 are horizontally installed at both ends away from the two rotating shafts 17, a strip plate 14 is horizontally installed at the center of the inner part of the discharge box 1, a third motor 16 is vertically installed on the top of the strip plate 14, and the output shaft of the third motor 16 passes through the second filter screen 19 and is installed at the center of the end of the rotating rod 18. By setting the second material grinding mechanism, the fly ash can be ground again.

[0026] Reference Figure 4In a preferred embodiment, the material screening mechanism includes a first filter screen 10 and a second motor 12, and the first filter screen 10 slides inside the discharge box 1 and is tilted, telescopic rods 15 are vertically installed at both ends of the bottom of the strip plate 14, and the telescopic ends of the two telescopic rods 15 are respectively installed at the centers of the two ends of the top of the first filter screen 10, the second motor 12 is horizontally installed inside the discharge box 1, and the output shaft of the second motor 12 is installed with an eccentric wheel 13, and legs are vertically installed at the four ends of a symmetrical side of the discharge box 1. Through the setting of the material screening mechanism, the fly ash after matte film grinding can be screened, ensuring the consistency of material size in the collection box 8.

[0027] Working principle of this embodiment: In actual use, the fly ash can be ground multiple times through the setting of the grinding box 3 and the grinding barrel 2, thereby improving the grinding effect of the fly ash. First, the fly ash enters the grinding box 3 from the feed port, and the two first grinding rollers 11 can be rotated in opposite directions through the setting of the first motor 9 and the two gears 4 to perform preliminary grinding of the fly ash. The fly ash ground by the grinding box 3 will fall into the grinding barrel 2, and then the third motor 16 will drive the rotating rod 18 to rotate, and the rotation of the rotating rod 18 will drive the two rotating shafts 17 to rotate, and the two rotating shafts 17 will drive the two second grinding rollers 20 to rotate, and further cooperate with the second filter screen 19 to grind the fly ash again, thereby improving the fly ash. Grinding effect. Through the setting of the first filter 10, the ground fly ash can be filtered and screened, ensuring that the fly ash collected in the collecting box 8 is of uniform size. In addition, through the setting of the discharge plate 7, the fly ash can be buffered when it falls, avoiding the occurrence of a large amount of dust when the fly ash falls directly from a high place. The eccentric wheel 13 is driven to rotate by the second motor 12. The rotation of the eccentric wheel 13 will drive the first filter 10 to move up and down, so that the fly ash on the first filter 10 can be vibrated to prevent the first filter 10 from being blocked. The fly ash filtered by the first filter 10 will be collected by the collecting box 6 through the opening 5, and can be re-ground through the feed port, thereby improving the use effect of the equipment.

[0028] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0029] 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 fly ash coarse ash grinding device, comprising a feed box (1), a grinding barrel (2) and a grinding box (3), characterized in that: The grinding barrel (2) is installed at the top center of the discharge box (1) and is connected to the grinding barrel (2), and the grinding box (3) is installed at the top of the grinding barrel (2) and is connected to the grinding barrel (2). A feeding port is provided at the top of the grinding box (3), and a discharge port is provided at the bottom of the discharge box (1). A material discharge buffer mechanism is provided at the bottom of the discharge box (1). A first material grinding mechanism is provided inside the grinding box (3), a second material grinding mechanism is provided inside the grinding barrel (2), and a material screening mechanism is provided inside the discharge box (1).

2. The fly ash coarse ash grinding device according to claim 1, characterized in that: The material discharge buffer mechanism comprises a discharge plate (7), and the discharge plate (7) is obliquely installed at the discharge port end of the discharge box (1), a collection box (8) is placed below the discharge box (1), an opening (5) is opened on one side of the discharge box (1), and a collection box (6) is hung on one side of the discharge box (1).

3. The fly ash coarse ash grinding device according to claim 2, characterized in that: The first material grinding mechanism comprises a first grinding roller (11), and there are two first grinding rollers (11) which rotate horizontally inside the grinding box (3), two gears (4) rotate at both ends of one side of the outside of the grinding box (3) and mesh with each other, and protrusions are horizontally installed on the sides of the two gears (4), and the other two ends of the two protrusions are respectively installed at the end centers of the two first grinding rollers (11), and a first motor (9) is installed on one side of the grinding box (3), and the output shaft of the first motor (9) is installed at the top center of one of the first grinding rollers (11).

4. The fly ash coarse ash grinding device according to claim 3, characterized in that: The second material grinding mechanism comprises a second filter screen (19), and the second filter screen (19) is horizontally installed at the bottom end of the grinding barrel (2), a rotating rod (18) is vertically rotated at the center of the top of the second filter screen (19), and a rotating shaft (17) is horizontally rotated on a symmetrical side of the rotating rod (18), and second grinding rollers (20) are horizontally installed at both ends away from the two rotating shafts (17).

5. The fly ash coarse ash grinding device according to claim 4, characterized in that: A strip plate (14) is horizontally installed at the center of the inner part of the unloading box (1), and a third motor (16) is vertically installed on the top of the strip plate (14), and the output shaft of the third motor (16) passes through the second filter (19) and is installed at the center of the end of the rotating rod (18).

6. The fly ash coarse ash grinding device according to claim 5, characterized in that: The material screening mechanism comprises a first filter screen (10) and a second motor (12), and the first filter screen (10) slides inside the material discharge box (1) and is arranged obliquely, and telescopic rods (15) are vertically installed at both ends of the bottom of the strip plate (14), and the telescopic ends of the two telescopic rods (15) are respectively installed at the centers of the two ends of the top of the first filter screen (10).

7. The fly ash coarse ash grinding device according to claim 6, characterized in that: The second motor (12) is horizontally installed inside the material box (1), and the output shaft of the second motor (12) is installed with an eccentric wheel (13), and the four ends of a symmetrical side of the material box (1) are vertically installed with supporting legs.

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