CN102814222B - Continuous dry ball milling device - Google Patents

Abstract

The invention is a continuous dry ball milling device, which includes a ball mill, an air classifier, a cyclone collector and a dust collector. Material pipe and discharge pipe, there is a hopper in front of the cylinder, the hopper is connected with the feed pipe through the automatic conveying pipe; The raw material inlet is connected, the fine powder outlet of the air classifier is connected with the powder inlet of the cyclone collector through the pipeline, and the dust outlet of the cyclone collector is connected with the dust inlet of the dust collector through the pipeline. The invention enables continuous production, and the desired product can be obtained by feeding materials once, with stable product quality, high production efficiency, and low production cost. At the same time, the particle size of the product is controllable, the particle size distribution is reasonable, and there are no large particles and ultrafine powders. Automated production and reduced labor intensity.

Description

Continuous Dry Ball Mill

technical field

The present invention relates to a dry ball mill, in particular to a continuous dry ball mill.

Background technique

The dry ball mill is the key equipment for crushing the material after it is crushed. In the prior art, when manufacturing silica powder, it is processed by multiple intermittent horizontal ball mills. Finally, the discharged materials are manually sent to another ball mill for processing, and finally manually screened and classified. This method has high labor intensity, low work efficiency, high production cost, uncontrollable product particles, and complicated operation procedures.

Contents of the invention

The technical problem to be solved by the present invention is to provide a continuous dry ball milling device with simple structure, convenient use and high production efficiency aiming at the deficiencies of the prior art.

The technical problem to be solved by the present invention is achieved through the following technical solutions. It is a continuous dry ball mill, which is characterized in that it includes a ball mill, an air classifier, a cyclone collector and a dust collector. The air classifier is equipped with There are raw material inlet, fine powder outlet and coarse powder outlet; the lower part of the cyclone collector is provided with a finished powder outlet, and the upper part of the cyclone collector is provided with a dust outlet and a powder inlet; the lower part of the dust collector is provided with a dust outlet, and the upper part is provided with a The dust inlet is connected with an induced draft fan under the side of the dust collector;

The ball mill includes a frame and a cylinder body. The two ends of the cylinder body are respectively fixedly connected with a feed pipe and a discharge pipe through end covers. The feed pipe and the discharge pipe are installed on the frame through bearings. There is a large gear on the outside of the material end, and the large gear is connected to the power device through a gear transmission device; a hopper is provided in front of the cylinder, and the hopper is connected to the feeding pipe through an automatic conveying pipeline; the discharge pipe of the cylinder is connected to the silo. The silo is divided into a coarse silo and a fine silo by a filter screen, the lower part of the silo is provided with a fine material outlet connected with the fine silo, and the side of the silo is provided with a outlet connected with the coarse silo. coarse material export;

The fine material outlet of the silo is connected with the raw material inlet of the air classifier through the pipeline, the fine powder outlet of the air classifier is connected with the powder inlet of the cyclone collector through the pipeline, and the dust outlet of the cyclone collector is connected with the dust collector through the pipeline. The dust inlet is connected.

The air classifier, cyclone collector and dust collector of the present invention can be selected from any air classifier, cyclone collector and dust collector that can realize functions disclosed in the prior art.

The technical problem to be solved by the present invention can be further realized by the following technical solutions. The middle part of the automatic conveying pipeline is provided with an impurity filter, and an impurity collection device is arranged under the impurity filter.

The technical problem to be solved by the present invention can be further realized through the following technical solutions, wherein a material propulsion thread is provided in the feed pipe.

The technical problem to be solved by the present invention can also be further realized through the following technical solutions. The device is provided with a coarse material recovery conveyor belt, one end of which is arranged under the coarse powder outlet of the airflow classifier, and the other end is connected with the automatic Pipeline fit.

The technical problem to be solved by the present invention can be further realized by the following technical solutions, the feed pipe and the discharge pipe of the ball mill are provided with magnetic separators.

Compared with the prior art, the present invention enables continuous production through ball mills, air classifiers, cyclone collectors and dust collectors, and the required products can be obtained by feeding materials once, with stable product quality, high production efficiency, and low production costs. At the same time, the particle size of the product is controllable, the particle size distribution is reasonable, there are no large particles and ultra-fine powder, which realizes automatic production and reduces labor intensity of workers.

Description of drawings

Fig. 1 is a schematic structural view of the present invention.

Detailed ways

The specific technical solutions of the present invention will be further described below with reference to the accompanying drawings, so that those skilled in the art can further understand the present invention, without limiting their rights.

Embodiment 1, with reference to accompanying drawing, a kind of continuous dry ball milling device comprises ball mill, air classifier 5, cyclone collector 3 and dust collector 2, and air classifier 5 is provided with raw material inlet, fine powder outlet and coarse powder outlet. Powder outlet 6; the bottom of the cyclone collector 3 is provided with a finished powder outlet 4, and the upper part of the cyclone collector 3 is provided with a dust outlet and a powder inlet; the lower part of the dust collector 2 is provided with a dust outlet, and the upper part is provided with a dust inlet. An induced draft fan 1 is connected to the bottom of the side of the collector 2 to help discharge dust;

The ball mill includes a frame 15 and a cylinder body 13, the two ends of the cylinder body 13 are respectively fixedly connected with a feed pipe 14 and a discharge pipe 9 through end caps, and the feed pipe 14 and the discharge pipe 9 are installed on the machine through a bearing 10. On the frame 15, a large gear 11 is arranged on the outside of the discharge end of the cylindrical body 13, and the large gear 11 is connected with the power device through a gear transmission; a hopper 18 is arranged in front of the cylindrical body 13, and the hopper 18 is connected to The feeding pipe 14 is connected, and the automatic conveying pipeline 17 includes a vibrating motor and a conveying pipeline connected with the vibrating motor, and the material is conveyed into the feeding pipe 14 through the vibration of the automatic conveying pipeline 17; Connected, the inside of described feed bin 19 is divided into coarse feed bin and fine feed bin by filter screen, the bottom of feed bin 19 is provided with the fine feed outlet 8 that communicates with fine feed bin, the side of feed bin 19 is provided with The coarse material outlet 7 connected with the coarse material bin;

The fine material outlet 8 of the silo 19 is connected to the raw material inlet of the air classifier 5 through a pipeline, the fine powder outlet of the air classifier 5 is connected to the powder material inlet of the cyclone collector 3 through a pipeline, and the dust outlet of the cyclone collector 3 passes through The pipeline is connected with the dust inlet of the dust collector 2 .

When in use, start all the equipment, add materials such as quartz sand and gravel into the hopper 18, the materials come out from the discharge port of the hopper 18, and enter the feed pipe 14 of the ball mill through the vibration of the automatic conveying pipeline 17, and pass the feed The pipe 14 is transported to the barrel 13 of the ball mill, and the barrel 13 runs at a certain speed to grind the material. After a period of time, the material becomes powdery and is discharged from the discharge pipe 9 into the silo 19. The filter screen is used to separate the coarse material and the fine material at the first level. The coarse material comes out from the coarse material outlet 7 and is collected. The fine material comes out from the fine material outlet 8 and enters the air classifier 5. The fine powder that goes out enters the cyclone collector 3 from the upper fine powder outlet of the air classifier 5, and the coarse powder that the air classifier 5 separates comes out from the coarse powder outlet 6 of its lower part, and collects; The powder comes out from the finished powder outlet 4 at the lower part of the cyclone collector 3 and is collected, while the dust enters the dust collector 2 from the dust outlet at the upper part of the cyclone collector 3, and the dust collected by the dust collector 2 is discharged from the dust outlet, which is completed A complete set of processing and separation procedures.

Embodiment 2. In the continuous dry ball milling device described in Embodiment 1, an impurity filter 16 is provided in the middle of the automatic conveying pipeline 17, and an impurity collection device is arranged below the impurity filter 16. When the quartz sand raw material passes through the automatic conveying pipeline 17, impurities such as small stones in the raw material will fall from the impurity filter screen 16 and enter the impurity collection device, thus eliminating the manual process of picking impurities and improving work efficiency.

Embodiment 3. In the continuous dry ball milling device described in Embodiment 1, the feed pipe 14 is provided with a material propulsion thread, and the thread in the feed pipe 14 can spirally push the material into the barrel 13 of the ball mill. , to improve the feeding effect.

Embodiment 4. In the continuous dry ball milling device described in embodiment 1, the device is provided with a coarse material recovery conveyor belt 12, and one end of the coarse material recovery conveyor belt 12 is located below the coarse powder outlet 6 of the air classifier 5, The other end cooperates with the automatic conveying pipeline 17, and the coarse material from the air classifier 5 can be sent to the ball mill for grinding again, thereby saving raw materials and reducing costs. The coarse powder outlet 6 of the air classifier 5 is connected to the cloth bag pipeline, and the end of the cloth bag pipeline is on the coarse material recycling conveyor belt 12 . The conveying end of the coarse material recycling conveyor belt 12 can be located above the automatic conveying pipeline 17, and the material directly falls onto the automatic conveying pipeline 17 after getting off the coarse material recycling conveying belt 12, and then enters the ball mill barrel 13 again for further recycling. grind. The delivery end of the coarse material recovery conveyor belt 12 can also be directly connected with the automatic conveying pipeline 17, and the material is directly transported from the coarse material recovery conveyor belt 12 to the automatic conveying pipeline 17.

Embodiment 5. In the continuous dry ball milling device described in Embodiment 1, a magnetic separator is provided on the feed pipe 14 and the discharge pipe 9 of the ball mill, and the metal in the material is selected by strong magnetic attraction. .

Claims (2)

1. a continous way dry type ball mill device, is characterized in that: comprise ball mill, gas flow sizing machine, cyclone collector and dust collection, gas flow sizing machine is provided with feed(raw material)inlet, fine powder outlet and meal outlet; The bottom of cyclone collector is provided with finished powder outlet, and the top of cyclone collector is provided with dust outlet and powder entrance; The bottom of dust collection is provided with dust outlet, and top is provided with dust inlet, and the below of dust collection sidepiece is connected with air-introduced machine;

Described ball mill comprises frame and cylindrical shell, cylindrical shell two ends are fixedly connected with respectively feed pipe and discharge nozzle by end cap, feed pipe and discharge nozzle are arranged in frame by bearing, on the outside of the discharge end of cylindrical shell, are provided with gear wheel, and gear wheel is connected with power set by gear drive; The front of cylindrical shell is provided with hopper, and hopper is connected with feed pipe by automatic transport pipeline; The discharge nozzle of cylindrical shell is connected with feed bin, in described feed bin, is divided into coarse fodder storehouse and fines storehouse by filter screen, and the bottom of feed bin is provided with the fines outlet being connected with fines storehouse, and the sidepiece of feed bin is provided with the coarse fodder outlet being connected with coarse fodder storehouse;

The fines outlet of feed bin is joined by the feed(raw material)inlet of pipeline and gas flow sizing machine, the fine powder outlet of gas flow sizing machine is connected with the powder entrance of cyclone collector by pipeline, the dust outlet of cyclone collector is joined by the dust inlet of pipeline and dust collection, automatic transport pipeline involving vibrations motor and the conveyance conduit being connected with vibrating motor, the middle part of described automatic transport pipeline is provided with impurity filtering net, impurity filtering net below is provided with impurity gathering-device, is provided with material and advances screw thread in described feed pipe; This device is provided with coarse fodder and reclaims conveyer belt, and coarse fodder recovery conveyer belt one end is located at the below of the meal outlet of gas flow sizing machine, and the other end coordinates with automatic transport pipeline.

2. continous way dry type ball mill device according to claim 1, is characterized in that: feed pipe and the discharge nozzle of described ball mill are provided with magnetic separator.