Fly ash grinding device

Abstract

The utility model discloses a fly ash grinding device, which relates to the field of fly ash production, and comprises a bottom plate and a frame, the frame is fixedly connected with a grinding cylinder device, the grinding cylinder device is provided with a feeding box, the feeding box is communicated with the grinding cylinder device through a feeding port, the grinding cylinder device is internally and rotatably connected with a grinding device, and the grinding device is provided with a feeding port. The grinding device is connected with the driving device, the sealing block device is arranged at the lower end of the grinding cylinder device, the material receiving box is arranged below the grinding cylinder device, and the sieve plate is arranged in the material receiving box. Ground powder is scraped away from the inner wall of the grinding cylinder and transferred upwards, the powder is prevented from being attached to the inner wall of the grinding cylinder, the powder grinding time can be greatly prolonged, the grinding effect is improved, a sealing block device moves up and down in a discharging box, communication of a sealing opening and a discharging opening is controlled, discharging is conducted conveniently and rapidly, the powder is screened in cooperation with a screen plate and a material collecting box, and the powder grinding efficiency is improved. And the grinding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of fly ash production, concretely relates to a fly ash grinding device. BACKGROUND

[0002] Fly ash grinding is a processing technology that refines fly ash to improve its utilization rate and application performance in the building material industry. Fly ash grinding technology can be divided into open and closed systems. The open system directly grinds coarse ash into fly ash with a fineness that meets the standard, while the closed system includes raw material storage, quantitative feeding and metering, feeding into a powder separator by an elevator, and sorting. The fine ash is sent to a fine ash storage, and the coarse ash is returned to the mill for regrinding.

[0003] A fly ash grinding device for a setting machine is disclosed in Chinese Patent No. CN202321628027.6. An arc-shaped partition is fixed at the upper end of the grinding box, and a plurality of filter holes are provided on the partition. A grinding roller is arranged in the grinding box and connected to a roller frame. A connecting rod is fixed to the roller frame and connected to the grinding box via a rotating shaft. The grinding roller is pressed against the partition and can roll along the partition. A turntable is arranged in the grinding box and driven to rotate by a first motor. A fixed shaft is arranged on the turntable, and a sliding channel is arranged on the connecting rod. The fixed shaft is embedded in the sliding channel and slides with the sliding channel. Left and right grinding wheels are arranged in the grinding box and driven to rotate by a second motor. An inclined drainage plate is fixed to the upper end of the grinding wheel corresponding to the grinding wheel in the grinding box, and the drainage plate is arranged at the lower end of the partition. This device can double grind and process fly ash materials to ensure the grinding quality of the fine fly ash after discharge. Although the filter holes are arranged on the annular partition and the grinding roller moves back and forth on the partition to grind and filter at the same time, the fly ash stays on the partition for a short time and is filtered before being fully ground. Moreover, the filter holes are easily clogged and attached to the partition, affecting the grinding effect and reducing the grinding efficiency. SUMMARY

[0004] To solve the problems in the background art, the utility model provides a fly ash grinding device that avoids filter plate clogging, prolongs the grinding time of fly ash, improves the grinding effect, and greatly improves the grinding efficiency.

[0005] To achieve the above-mentioned purposes, the specific technical solutions of the utility model are as follows:

[0006] A fly ash grinding device includes a bottom plate and a frame. A grinding cylinder device is fixedly connected to the frame. An upper feeding box is arranged on the grinding cylinder device and communicates with the grinding cylinder device through a feeding port. A grinding device is rotatably connected in the grinding cylinder device and connected to a driving device. A sealing block device is arranged at the lower end of the grinding cylinder device. A receiving box is arranged below the grinding cylinder device. A sieve plate is arranged in the receiving box.

[0007] As a further setting of the above scheme, the grinding cylinder device comprises a grinding cylinder, a mounting shaft hole is formed in the center of the grinding cylinder, a sealing port is formed in the lower end of the grinding cylinder, a discharge box is fixedly connected to the lower end of the sealing port, and a discharge port is formed in the side plate of the discharge box.

[0008] As a further setting of the above scheme, the grinding device comprises a main shaft, the main shaft is rotationally connected in the mounting shaft hole, grinding supports are circumferentially arranged on the outer wall of the main shaft, grinding rollers are rotationally connected to the grinding supports, the grinding rollers are parallel to the main shaft, the grinding rollers are rollingly connected to the inner wall of the grinding cylinder, and scrapers are arranged between the grinding supports, and the outer ends of the scrapers are in sliding contact with the inner wall of the grinding cylinder.

[0009] As a further setting of the above scheme, the sealing block device comprises a sealing block, the sealing block is slidably connected in the discharge box, an arc-shaped groove is formed in the upper end of the sealing block, the diameter of the arc-shaped groove is the same as the diameter of the inner wall of the grinding cylinder, and a lifting air cylinder is arranged at the lower end of the sealing block and fixed to the discharge box.

[0010] The utility model has the advantages of the following beneficial effects:

[0011] 1. The driving device drives the grinding device to rotate in the grinding cylinder device, drives the grinding rollers to move circumferentially and roll on the inner wall of the grinding cylinder, and drives the scrapers to move synchronously, so that the ground powder is scraped away from the inner wall of the grinding cylinder and transported upward, thereby avoiding the attachment of the powder on the inner wall of the grinding cylinder, greatly prolonging the grinding time and improving the grinding effect.

[0012] 2. The sealing block device moves up and down in the discharge box to control the communication between the sealing port and the discharge port, so that the discharge is convenient and fast, and the ground powder is screened by the sieve plate and the receiving box, thereby improving the grinding efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a cross-sectional schematic view of the utility model;

[0014] Figure 2 is a schematic view of the appearance of the utility model;

[0015] Figure 3 is a cross-sectional schematic view of the grinding cylinder device of the utility model;

[0016] Figure 4 is a schematic view of the grinding device of the utility model;

[0017] Figure 5 is a schematic view of the sealing block device of the utility model.

[0018] 1, bottom plate; 2, rack; 3, feeding box; 4, grinding cylinder device; 5, grinding device; 6, sealing block device; 7, receiving box; 8, sieve plate; 9, driving device; 301, feeding port; 401, grinding cylinder; 402, mounting shaft hole; 403, sealing port; 404, discharge box; 4041, discharge port; 501, main shaft; 502, grinding support; 503, grinding roller; 504, scraper; 601, sealing block; 602, circular arc groove; 603, lifting cylinder. DETAILED DESCRIPTION

[0019] In order to make the person skilled in the art better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0020] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical scheme of the present application will be described in detail below with reference to the drawings and in combination with the embodiments. Figures 1-5 The technical scheme of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0021] As shown in Figure 1 , Figure 2 , a fly ash grinding device, comprising a bottom plate 1 and a rack 2, the rack 2 is fixedly connected with a grinding cylinder device 4, the grinding cylinder device 4 is provided with a feeding box 3, the feeding box 3 is communicated with the grinding cylinder device 4 through a feeding port 301, the grinding cylinder device 4 is rotatably connected with a grinding device 5 inside, the grinding device 5 is connected with a driving device 9, the lower end of the grinding cylinder device 4 is provided with a sealing block device 6, the lower side of the grinding cylinder device 4 is provided with a receiving box 7, the receiving box 7 is provided with a sieve plate 8 inside.

[0022] As shown in Figure 3 , the grinding cylinder device 4 comprises a grinding cylinder 401, the center of the grinding cylinder 401 is provided with a mounting shaft hole 402, the lower end of the grinding cylinder 401 is provided with a sealing port 403, the sealing port 403 is fixedly connected with a discharge box 404 at the lower end, and the side plate of the discharge box 404 is provided with a through discharge port 4041.

[0023] As shown in Figure 4As shown, the grinding device 5 includes a main shaft 501, the main shaft 501 is rotationally connected in the mounting shaft hole 402, a plurality of circumferentially distributed grinding supports 502 are arranged on the outer wall of the main shaft 501, a grinding roller 503 is rotationally connected outside the grinding support 502, the grinding roller 503 is parallel to the main shaft 501, the grinding roller 503 is rollingly connected with the inner wall of the grinding cylinder 401, a scraper 504 is arranged between the grinding supports 502, and the outer end of the scraper 504 is in sliding contact with the inner wall of the grinding cylinder 401.

[0024] As shown in the figure, Figure 5 The sealing block device 6 includes a sealing block 601, the sealing block 601 is slidably connected in the discharge box 404, an arc groove 602 is formed in the upper end of the sealing block 601, the diameter of the arc groove 602 is the same as the diameter of the inner wall of the grinding cylinder 401, a lifting cylinder 603 is arranged at the lower end of the sealing block 601, the lower end of the lifting cylinder 603 is fixed on the discharge box 404, the lifting cylinder 603 drives the sealing block 601 to move up and down in the discharge box 404, when the sealing block 601 moves to the uppermost position, the arc groove 602 is coincided with the inner wall of the grinding cylinder 401, the grinding cylinder 401 is sealed, and the normal grinding is ensured, when the sealing block 601 moves to the lowermost position, the sealing port 403 and the discharge port 4041 are communicated, and the powder is discharged from the grinding cylinder 401 to the screen plate, and the ground powder is screened.

[0025] The working process of the utility model is as follows: the powder is poured into the feeding box 3, the powder enters the grinding cylinder 401 through the feeding port 301, the driving device 9 drives the main shaft 501 to rotate in the mounting shaft hole, drives the grinding roller 503 to move circumferentially and roll on the inner wall of the grinding cylinder 401, grinds the powder, the scraper 504 moves synchronously, scrapes the ground powder away from the inner wall of the grinding cylinder 401 and upwardly transports, avoids the powder adhering to the inner wall of the grinding cylinder 401, avoids the powder adhering, can greatly prolong the grinding time, improves the grinding effect, the lifting cylinder 603 drives the sealing block 601 to move downwardly in the discharge box 404, the sealing port 403 and the discharge port 4041 are communicated, the powder is discharged from the grinding cylinder 401 to the screen plate, and the ground powder is screened.

[0026] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model.

[0027] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A pulverized coal ash grinding device comprising a base plate and a frame, characterized by, The rack is fixedly connected with a grinding cylinder device, an upper feeding box is arranged on the grinding cylinder device, the upper feeding box is communicated with the grinding cylinder device through a feeding port, a grinding device is rotatably connected in the grinding cylinder device, the grinding device is connected with a driving device, a sealing block device is arranged at the lower end of the grinding cylinder device, a collecting box is arranged below the grinding cylinder device, and a sieve plate is arranged in the collecting box.

2. The fly ash grinding mill apparatus of claim 1, wherein, The grinding cylinder device comprises a grinding cylinder, an installation shaft hole is formed at the center of the grinding cylinder, a sealing port is formed at the lower end of the grinding cylinder, a discharging box is fixedly connected to the lower end of the sealing port, and a discharging port is formed in the side plate of the discharging box.

3. The fly ash grinding mill apparatus of claim 2, wherein, The grinding device comprises a main shaft, the main shaft is rotatably connected in the installation shaft hole, a plurality of grinding supports are circumferentially arranged on the outer wall of the main shaft, a grinding roller is rotatably connected to the outer wall of the grinding support, the grinding roller is parallel to the main shaft, the grinding roller is rollingly connected with the inner wall of the grinding cylinder, and a scraper is arranged between the grinding supports.

4. The fly ash grinding mill apparatus of claim 2, wherein, The sealing block device comprises a sealing block, the sealing block is slidably connected in the discharging box, an arc groove is formed in the upper end of the sealing block, the diameter of the arc groove is the same as the diameter of the inner wall of the grinding cylinder, a lifting cylinder is arranged at the lower end of the sealing block, and the lower end of the lifting cylinder is fixed on the discharging box.

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