Fly ash grinding device

Abstract

The utility model discloses a fly ash grinding device which comprises a grinding box, a filter plate is fixedly installed in the grinding box, a swing device is arranged in the grinding box, two first telescopic rods are fixedly installed at the bottom end of the swing device, and the two first telescopic rods are jointly and rotationally connected with a grinding roller. The two first telescopic rods are jointly provided with an extrusion mechanism, an arc-shaped base is fixedly installed on the bottom face of the extrusion mechanism, a plurality of balls are rotationally connected to the bottom face of the arc-shaped base, and each ball abuts against the grinding roller. When the grinding device is used, operation is easy, the grinding roller can continuously abut against the filter plate, grinding is thorough, and the grinding efficiency is improved. Meanwhile, the outer side of the grinding roller is cleaned, and the stirring roller can be driven to stir the top surface of the filter plate, so that the excessively crushed fly ash is prevented from being adhered to the filter plate, and the filtering effect of the filter plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fly ash grinding, in particular to a fly ash grinding device. Background Art

[0002] my country is a large coal-producing country, with coal as the basic fuel for electricity production. Fly ash refers to the fine ash collected from the flue gas after coal combustion, and is the main solid waste discharged by coal-fired power plants. In order to avoid environmental pollution and make full use of resources, fly ash is usually collected and reused in concrete mixing materials to improve the performance of concrete. However, the directly collected fly ash is often mixed with more impurities and large particles, so it needs to be crushed and ground.

[0003] In Chinese utility model patents, for example, the utility model of CN220405746U discloses a fly ash grinding device, which can perform double grinding processing on fly ash materials to ensure the grinding quality of the fly ash fine powder after discharge.

[0004] However, the above technology does not apply downward squeezing force to the grinding roller when grinding the fly ash, resulting in incomplete grinding of the material. At the same time, when the grinding roller continues to reciprocate in the grinding box, some materials will be over-ground, causing the over-ground fly ash to adhere to the side of the grinding roller or the filter plate, affecting the filtration speed and grinding effect. Utility Model Content

[0005] The utility model aims to solve the problems in the background technology and proposes a fly ash grinding device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A fly ash grinding device comprises a grinding box, in which a filter plate is fixedly installed, a swing device is provided in the grinding box, and two first telescopic rods are fixedly installed at the bottom end of the swing device, the two first telescopic rods are rotatably connected to a grinding roller, the two first telescopic rods are jointly provided with an extrusion mechanism, an arc seat is fixedly installed on the bottom surface of the extrusion mechanism, a plurality of balls are rotatably connected to the bottom surface of the arc seat, and each ball abuts against the grinding roller, a connecting rod is rotatably connected in each of the first telescopic rods, and stirring rollers are rotatably connected at both ends of each connecting rod, a gear transmission mechanism is provided on the filter plate, and each stirring roller is driven to rotate by the gear transmission mechanism, and the stirring blade of each stirring roller contacts the filter plate.

[0008] Preferably, the squeezing mechanism comprises a plurality of second telescopic rods, two of the first telescopic rods are commonly mounted with a top plate, and each second telescopic rod is fixedly mounted on the bottom surface of the top plate, and a spring is fixedly mounted in each of the second telescopic rods.

[0009] Preferably, each of the gear transmission mechanisms comprises an arc-shaped rack, two arc-shaped racks are symmetrically mounted on the top surface of the filter plate, and gears are mounted on both ends of each stirring roller, and the gears are meshed with the arc-shaped racks.

[0010] Preferably, a movable groove is formed at the bottom end of each of the first telescopic rods, a rotating shaft is rotatably connected in each of the movable grooves, and one end of each connecting rod away from the stirring roller is rotatably connected to the rotating shaft.

[0011] Preferably, a conical pouring plate is provided in the grinding box, a plurality of grinding wheels are provided in the grinding box, and each grinding wheel is installed below the conical pouring plate.

[0012] Preferably, the filter plate and the second telescopic rod are both opened in an arc shape, and the bottom surface and the bottom surface of the grinding box are respectively provided with a feed inlet and a discharge outlet.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a second telescopic rod, a spring, an arc seat, a ball bearing and other devices. The spring squeezes the second telescopic rod, thereby driving the arc seat to squeeze the grinding roller, so that the grinding roller and the filter plate are continuously against each other, thereby grinding thoroughly. At the same time, the ball bearing does not affect the rotation of the grinding roller, and the outer side of the grinding roller is cleaned.

[0015] 2. The utility model sets gears, racks, stirring rollers and other devices to achieve the goal of driving the gear rack to rotate while the grinding roller swings, thereby driving the stirring roller to stir the top surface of the filter plate, thereby preventing the over-crushed fly ash from adhering to the filter plate and increasing the filtering effect of the filter plate.

[0016] To sum up, the utility model is easy to operate when in use, and can make the grinding roller and the filter plate continuously resist each other, thereby grinding thoroughly, while cleaning the outside of the grinding roller, and can drive the stirring roller to stir the top surface of the filter plate to prevent excessively crushed fly ash from adhering to the filter plate, thereby increasing the filtering effect of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a fly ash grinding device proposed by the utility model;

[0018] Figure 2 A schematic diagram of a grinding roller connection mechanism of a fly ash grinding device proposed in the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of a support for a fly ash grinding device proposed in the utility model;

[0020] Figure 4 The utility model discloses a schematic cross-sectional structure diagram of a telescopic rod and an arc-shaped seat of a fly ash grinding device.

[0021] In the figure: 1 grinding box, 2 swing device, 3 conical pouring plate, 4 grinding wheel, 5 first telescopic rod, 6 top plate, 7 second telescopic rod, 8 arc seat, 9 filter plate, 10 grinding roller, 11 arc rack, 12 gear, 13 stirring roller, 14 connecting rod, 15 movable groove, 16 rotating shaft, 17 spring, 18 ball. DETAILED DESCRIPTION

[0022] 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 of the embodiments.

[0023] Reference Figure 1-4 , a fly ash grinding device, comprising a grinding box 1, a filter plate 9 is fixedly installed in the grinding box 1, a swing device 2 is provided in the grinding box 1, the swing device 2 is the prior art of the comparative document, and no further description is given here, a conical material pouring plate 3 is provided in the grinding box 1, a plurality of grinding wheels 4 are provided in the grinding box 1, and each grinding wheel 4 is installed under the conical material pouring plate 3, and the fallen material is crushed again by the grinding wheel 4, and two first telescopic rods 5 are fixedly installed at the bottom end of the swing device 2, and the two first telescopic rods 5 are connected to the grinding roller 10 by rotating together, the filter plate 9 and the second telescopic rod 7 are both opened in an arc shape, and the arc setting avoids the existence of a dead angle when the grinding roller 10 contacts the grinding box 1, and the bottom surface and the bottom surface of the grinding box 1 are respectively provided with a feed port and a discharge port;

[0024] The two first telescopic rods 5 are provided with a squeezing mechanism, which includes a plurality of second telescopic rods 7. The two first telescopic rods 5 are provided with a top plate 6, and each second telescopic rod 7 is fixedly installed on the bottom surface of the top plate 6. A spring 17 is fixedly installed in each second telescopic rod 7. Through the action of the spring 17, the second telescopic rod 7 is driven to resist the arc seat 8, thereby causing the grinding roller 10 to resist the filter plate 9, so as to facilitate the thorough crushing of the fly ash.

[0025] An arc seat 8 is fixedly installed on the bottom surface of the extrusion mechanism, and a plurality of balls 18 are rotatably connected to the bottom surface of the arc seat 8, and each ball 18 is against the grinding roller 10. Through the arrangement of the balls 18, the ground fly ash on the grinding roller 10 can be cleaned without hindering the rotation of the grinding roller 10. A connecting rod 14 is rotatably connected in each first telescopic rod 5, and a movable groove 15 is provided at the bottom end of each first telescopic rod 5. A rotating shaft 16 is rotatably connected in each movable groove 15, and one end of each connecting rod 14 away from the stirring roller 13 is rotatably connected to the rotating shaft 16. Both ends of each connecting rod 14 are rotatably connected to the stirring roller 13, and the crushed fly ash on the filter plate 9 is stirred by the stirring roller 13, so as to facilitate its passing through the filter holes of the filter plate 9;

[0026] A gear transmission mechanism is provided on the filter plate 9, and each stirring roller 13 is driven to rotate by the gear transmission mechanism, and the stirring blades of each stirring roller 13 are in contact with the filter plate 9, each gear transmission mechanism includes an arc-shaped rack 11, and two arc-shaped racks 11 are symmetrically installed on the top surface of the filter plate 9, and gears 12 are installed at both ends of each stirring roller 13, and the gears 12 are meshed with the arc-shaped racks 11, thereby driving the rotation of the stirring roller 13, which is convenient for cleaning the filter plate 9 and allowing the material to fall quickly.

[0027] When the utility model is used, the swing device 2 is started to drive the two first telescopic rods 5 to swing back and forth, and at the same time, the top ends of the two first telescopic rods 5 are connected to the grinding rollers 10 to rotate together, and then the fly ash is crushed by the grinding rollers 10, and then falls into the conical pouring plate 3 through the filter plate 9, and then is crushed again by the multiple grinding wheels 4, and finally discharged through the discharge port of the grinding box 1;

[0028] It is worth noting that the two first telescopic rods 5 are jointly installed with the second telescopic rod 7, and a spring 17 is fixedly installed in each second telescopic rod 7, and then the arc seat 8 is offset by the spring 17, so that the arc seat 8 and the grinding roller 10 are offset, and a plurality of balls 18 installed on the bottom surface of the arc seat 8 are used to clean the fly ash adhered to the grinding roller 10 while the grinding roller 10 rotates, without affecting the rotation of the grinding roller 10, and at the same time, force is applied to the grinding roller 10 to make it firmly offset against the filter plate 9, thereby increasing the crushing effect;

[0029] At the same time, when the grinding roller 10 swings, it drives the connecting rod 14 connected to the first telescopic rod 5 to swing, and the stirring roller 13 is connected to the connecting rod 14 through rotation, and a gear 12 is installed at one end of the stirring roller 13, and the gear 12 is meshed with an arc-shaped rack 11 fixedly installed on the filter plate 9, thereby driving the stirring roller 13 to rotate, and the crushed material on the filter plate 9 is stirred by the stirring roller 13 to prevent some materials from adhering to the surface of the filter plate 9 due to excessive crushing, thereby affecting the falling speed of the filter plate 9.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fly ash grinding device, comprising a grinding box (1), characterized in that: A filter plate (9) is fixedly installed in the grinding box (1). A swing device (2) is provided in the grinding box (1). Two first telescopic rods (5) are fixedly installed at the bottom end of the swing device (2). The two first telescopic rods (5) are rotatably connected to a grinding roller (10). The two first telescopic rods (5) are jointly provided with an extrusion mechanism. An arc seat (8) is fixedly installed on the bottom surface of the extrusion mechanism. A plurality of balls (18) are rotatably connected to the bottom surface of the arc seat (8), and each ball (18) abuts against the grinding roller (10). A connecting rod (14) is rotatably connected in each of the first telescopic rods (5). Both ends of each connecting rod (14) are rotatably connected to a stirring roller (13). A gear transmission mechanism is provided on the filter plate (9). Each stirring roller (13) is driven to rotate by the gear transmission mechanism, and a stirring blade of each stirring roller (13) contacts the filter plate (9).

2. A fly ash grinding device according to claim 1, characterized in that: The squeezing mechanism comprises a plurality of second telescopic rods (7), two of the first telescopic rods (5) are commonly mounted with a top plate (6), and each second telescopic rod (7) is fixedly mounted on the bottom surface of the top plate (6), and each second telescopic rod (7) has a spring (17) fixedly mounted inside it.

3. A fly ash grinding device according to claim 2, characterized in that: Each of the gear transmission mechanisms comprises an arc-shaped rack (11), two arc-shaped racks (11) are symmetrically mounted on the top surface of the filter plate (9), and gears (12) are mounted on both ends of each of the stirring rollers (13), and the gears (12) are meshed with the arc-shaped racks (11).

4. A fly ash grinding device according to claim 3, characterized in that: A movable groove (15) is provided at the bottom end of each of the first telescopic rods (5), a rotating shaft (16) is rotatably connected in each of the movable grooves (15), and one end of each connecting rod (14) away from the stirring roller (13) is rotatably connected to the rotating shaft (16).

5. A fly ash grinding device according to claim 4, characterized in that: A conical pouring plate (3) is provided in the grinding box (1), and a plurality of grinding wheels (4) are provided in the grinding box (1), and each grinding wheel (4) is installed below the conical pouring plate (3).

6. A fly ash grinding device according to claim 5, characterized in that: The filter plate (9) and the second telescopic rod (7) are both formed in an arc shape, and a feed inlet and a discharge outlet are respectively provided on the bottom surface and the bottom surface of the grinding box (1).

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