CN211329642U - A special ball mill for refractory aggregate - Google Patents

Abstract

The utility model relates to a refractory aggregate processing technology field especially relates to a special ball-milling device of refractory aggregate, the shortcoming that the grinding that exists can not once be accomplished among the solution prior art, including bottom plate and grinding vessel, the bottom plate upside is arranged in to the grinding vessel level, installs the bearing frame through the bolt on the bottom plate, and the grinding vessel is connected with the bearing frame through the pivot, the grinding vessel includes the end cover, elementary grinding vessel and secondary grinding vessel, end cover and elementary grinding vessel flange joint, the other end flange joint of elementary grinding vessel has the space bar of taking the sieve mesh, and space bar and secondary grinding vessel flange joint, the intercommunication has the inlet pipe on the elementary grinding vessel, the intercommunication has the discharging pipe on the secondary grinding vessel. The utility model discloses install the space bar of taking the sieve mesh additional at grinding vessel middle part, the hierarchical grinding improves grinding efficiency, and the thick middle part in wear-resisting inside lining both ends is thin, can make raw materials and ball move to the centre, does benefit to the aggregate and passes through the space bar, and makes things convenient for the unloading.

Description

A special ball mill for refractory aggregate

technical field

The utility model relates to the technical field of refractory aggregate processing, in particular to a special ball milling device for refractory aggregates.

Background technique

Refractory aggregate refers to refractory particles that play a skeleton role in the particle size composition of refractory materials. They are made of various raw materials through calcination, crushing or artificial synthesis, and granular materials with a particle size greater than 0.088mm. Aggregate is the main material in monolithic refractories. The production process includes: crushing, grinding, sieving, batching, etc. In the process of producing refractory aggregate, the grinding is often not completed in sequence. Generally, two-stage grinding is required, and raw materials need to be transferred, and the production process is cumbersome.

SUMMARY OF THE INVENTION

The purpose of the utility model is to propose a special ball milling device for refractory aggregate in order to solve the disadvantage that grinding cannot be completed at one time in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: a special ball milling device for refractory aggregate, comprising a bottom plate and a grinding cylinder, the grinding cylinder is placed horizontally on the upper side of the bottom plate, and a bearing seat is installed on the bottom plate through bolts, and The grinding drum is connected with the bearing seat through the rotating shaft, the grinding drum includes an end cover, a primary grinding drum and a secondary grinding drum, the end cover is flanged to one end of the primary grinding drum, and the other end of the primary grinding drum is flanged A spacer plate with sieve holes is connected, and the spacer plate is connected with the secondary grinding cylinder flange, the primary grinding cylinder is connected with a feeding pipe, and the secondary grinding cylinder is connected with a discharging pipe, and the feeding pipe is connected to the secondary grinding cylinder. Both the pipe and the discharge pipe are provided with cover plates, and the inside of the end cover, the primary grinding cylinder and the secondary grinding cylinder are all provided with wear-resistant inner linings, and the wear-resistant inner linings are respectively provided with the feeding pipe and the outlet. The communication hole corresponding to the material pipe.

Preferably, coaxial rotating shafts are respectively fixed on the outer sides of the end cover and the secondary grinding drum, and the rotating shafts are connected in the bearing seat through bearings.

Preferably, a drive motor is installed on the bottom plate, and an output end of the drive motor is connected with a driving gear, and a driven gear is fixed on the outer side of the secondary grinding cylinder, and the driven gear meshes with the driving gear.

Preferably, the feed pipe and the discharge pipe are respectively placed on the upper and lower sides of the grinding cylinder, and both the feed pipe and the discharge pipe are arranged at one end close to the partition plate.

Preferably, the thickness of the wear-resistant lining gradually increases from the end close to the communication hole to the end away from the communication hole.

Preferably, a limit ring is arranged on the inner side of the inner end of the feed pipe and the discharge pipe, a baffle plate matched with the feed pipe is placed on the outer side of the limit ring, and a top-tight cover is fixed on the outer side of the baffle plate plate support column.

The beneficial effects of the present utility model are:

In the utility model, a partition plate with sieve holes is installed in the middle of the grinding cylinder, coarse grinding balls are installed in the primary grinding cylinder, and fine grinding balls are installed in the secondary grinding cylinder for graded grinding, thereby improving grinding efficiency.

The wear-resistant inner lining is thick at both ends and thin at the middle, which can promote the movement of raw materials and grinding balls to the middle, which is conducive to the passage of aggregates through the spacer plate and facilitates cutting.

Description of drawings

Fig. 1 is a schematic front view of the structure of a special ball mill for refractory aggregate proposed by the utility model.

FIG. 2 is a schematic cross-sectional structure diagram of a grinding cylinder of a special ball milling device for refractory aggregate proposed by the utility model.

Fig. 3 is a schematic cross-sectional structure diagram of a feed pipe of a special ball milling device for refractory aggregate proposed by the utility model.

In the picture: 1 bottom plate, 2 bearing seat, 3 end cover, 4 primary grinding drum, 5 secondary grinding drum, 6 spacer plate, 7 driven gear, 8 driving motor, 9 driving gear, 10 feeding pipe, 11 discharging Tube, 12 limit ring, 13 baffle plate, 14 support column, 15 wear-resistant lining, 16 communication hole.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

1-3, a special ball milling device for refractory aggregate includes a bottom plate 1 and a grinding cylinder, the grinding cylinder is placed horizontally on the upper side of the bottom plate 1, the bottom plate 1 is mounted with a bearing seat 2 through bolts, and the grinding cylinder includes an end cover 3, The primary grinding drum 4 and the secondary grinding drum 5, the end cover 3 and one end of the primary grinding drum 4 are flanged, and the other end of the primary grinding drum 4 is flanged with a partition plate 6 with sieve holes, and the partition plate 6 is connected with the secondary grinding drum 4. The primary grinding cylinder 5 is flanged, the outer side of the end cover 3 and the secondary grinding cylinder 5 are respectively welded with coaxial rotating shafts. There is a discharge pipe 11 connected to the stage grinding cylinder 5, a cover plate that can be locked is provided on the feed pipe 10 and the discharge pipe 11, and the interior of the end cover 3, the primary grinding cylinder 4 and the secondary grinding cylinder 5 are all provided There is a wear-resistant inner lining 15 , and communication holes 16 corresponding to the feeding pipe 10 and the discharging pipe 11 are respectively opened on the wear-resistant inner lining 15 .

The drive motor 8 is installed on the base plate 1 , the output end of the drive motor 8 is connected with the driving gear 9 , the outer key of the secondary grinding cylinder 5 is connected with the driven gear 7 , and the driven gear 7 is meshed with the driving gear 9 .

Among them, the feed pipe 10 and the discharge pipe 11 are respectively placed on the upper and lower sides of the grinding cylinder, the feed pipe 10 and the discharge pipe 11 are both arranged at one end of the partition plate 6, and the wear-resistant lining 15 is close to the communication hole 16. The thickness of the end away from the communication hole 16 gradually increases, which can promote the movement of the raw material and the grinding ball to the middle, which facilitates the passage of the aggregate through the partition plate 6 and facilitates the cutting.

Wherein, the inner ends of the feed pipe 10 and the discharge pipe 11 are provided with a limit ring 12 made of the same material as the wear-resistant lining 15, and a baffle 13 matched with the feed pipe 10 is placed on the outside of the limit ring 12. , and the outer side of the baffle plate 13 is fixed with a support column 14 for pressing the cover plate.

When grinding the refractory aggregate, the raw material to be ground is put into the primary grinding cylinder 4 through the feeding pipe 10, the coarse grinding balls are put into the primary grinding cylinder 4 through the feeding pipe 10, and the cover plate on the feeding pipe 10 is covered. Combine and lock, rotate the grinding cylinder 180°, put the fine grinding balls into the secondary grinding cylinder 5 through the discharge pipe 11, combine and lock the cover plate cover on the discharge pipe 11, start the drive motor 8, the drive motor 8 Drive the driving gear 9 to rotate, the driving gear 9 drives the feeding pipe 10 to rotate, thereby driving the grinding cylinder to rotate, and the grinding ball grinds the aggregate, and the aggregate whose particle size is smaller than the sieve hole of the partition plate 6 can freely pass through the partition plate 6. The grinding drum 4 and the secondary grinding drum 5 move freely, and the aggregate with a particle size larger than the sieve hole of the spacer plate 6 is always blocked in the primary grinding drum 4 by the spacer plate 6 to prevent it from damaging the fine grinding balls. After the grinding is completed, the drive is suspended. Motor 8, adjust the discharge pipe 11 to the opening downward, open the cover plate on the discharge pipe 11, take out the baffle 13, and the aggregate and fine grinding balls in the secondary grinding cylinder 5 are discharged from the discharge pipe 11 , sieve the mixture of fine grinding balls and aggregates, take the aggregates, then rotate the grinding drum 180°, open the cover plate on the feeding pipe 10, take out the baffle plate 13, the aggregates in the primary grinding drum 4 and The coarse grinding balls are discharged from the feeding pipe 10, the mixture of the coarse grinding balls and the aggregate is sieved, and the aggregate is sieved again to obtain the aggregate with a particle size that meets the requirements.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (6)

1. The utility model provides a special ball-milling device of refractory aggregate, includes bottom plate (1) and grinding vessel, its characterized in that: the grinding cylinder is horizontally arranged on the upper side of the bottom plate (1), a bearing seat (2) is installed on the bottom plate (1) through a bolt, the grinding cylinder is connected with the bearing seat (2) through a rotating shaft and comprises an end cover (3), a primary grinding cylinder (4) and a secondary grinding cylinder (5), the end cover (3) is connected with one end of the primary grinding cylinder (4) through a flange, the other end of the primary grinding cylinder (4) is connected with a partition plate (6) with a sieve mesh through a flange, the partition plate (6) is connected with the secondary grinding cylinder (5) through a flange, the primary grinding cylinder (4) is communicated with a feed pipe (10), the secondary grinding cylinder (5) is communicated with a discharge pipe (11), cover plates are arranged on the feed pipe (10) and the discharge pipe (11), wear-resistant linings (15) are arranged inside the end cover (3), the primary grinding cylinder (4) and the secondary grinding cylinder (5), and the wear-resistant lining (15) is respectively provided with a communicating hole (16) corresponding to the feeding pipe (10) and the discharging pipe (11).

2. The ball milling device special for refractory aggregate of claim 1, wherein: the outer sides of the end cover (3) and the secondary grinding cylinder (5) are respectively fixed with coaxial rotating shafts, and the rotating shafts are connected in the bearing block (2) through bearings.

3. The ball milling device special for refractory aggregate of claim 1, wherein: install driving motor (8) on bottom plate (1), and the output of driving motor (8) is connected with driving gear (9), the outside of secondary grinding vessel (5) is fixed with driven gear (7), and driven gear (7) and driving gear (9) mesh mutually.

4. The ball milling device special for refractory aggregate of claim 1, wherein: the grinding cylinder is characterized in that the feeding pipe (10) and the discharging pipe (11) are respectively arranged on the upper side and the lower side of the grinding cylinder, and the feeding pipe (10) and the discharging pipe (11) are arranged at one end close to the partition plate (6).

5. The ball milling device special for refractory aggregate of claim 1, wherein: the thickness of the wear-resistant lining (15) gradually increases from the end close to the communicating hole (16) to the end far away from the communicating hole (16).

6. The ball milling device special for refractory aggregate of claim 1, wherein: the inner sides of the inlet pipe (10) and the outlet pipe (11) are provided with limit rings (12), baffle plates (13) matched with the inlet pipe (10) are placed on the outer sides of the limit rings (12), and supporting columns (14) of a tightly-jacking cover plate are fixed on the outer sides of the baffle plates (13).

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