CN204247306U - A kind of quartz sand dry process units - Google Patents

Abstract

A dry process production device for quartz sand, comprising a ball mill, a grading unit and a hopper arranged on a grading platform, the ball mill is provided with an oblique cylinder, a grinding body is arranged in the cylinder, and a hollow shaft for feeding is provided at one end of the cylinder. The other end of the cylinder is provided with a hollow shaft for discharging, the hollow shaft for discharging and the hollow shaft for feeding are connected with the bearing seat on the frame, the grading platform is set at the outer end of the hollow shaft for feeding the cylinder, and the hollow shaft for discharging The outer end of the material hollow shaft is equipped with a discharge screening device, and a spiral conveying pipe is provided between the discharge screening device and the classifier, and the spiral conveying pipe is connected with the feed port at the lower part of the classifier, and the lower part of the classifier A return pipe is provided, and the return pipe is connected with the feeding hollow shaft. The utility model improves the grading accuracy by setting the discharge screening device, and avoids damage to the grading equipment by the coarse material; the grading unit and the hopper are arranged outside the hollow shaft of the cylinder body, and the unqualified materials are transported back to the ball mill for re-use in the shortest distance. Grinding to improve the classification accuracy.

Description

A kind of quartz sand dry method production device

technical field

The utility model relates to a quartz sand production equipment, in particular to a quartz sand dry production device.

Background technique

The existing quartz sand production process is mainly based on dry production and wet production. Quartz sand produced by dry method is divided into ordinary quartz sand, semi-refined quartz sand and refined quartz sand. The equipment used includes ball mill, classifier, crushing machines and vibrating screens etc. There are many existing sets of quartz sand production equipment. In the existing production process, the equipment is mainly installed in parallel, resulting in a long length of the entire production line. It takes time and effort for workers to monitor the process back and forth, and because the equipment itself takes up a lot of space, resulting in a It takes up a lot of space and the waste of space is serious. Secondly, in the existing production process, the coarse material classified by the classifier is collected by the collection device, and then manually put into the ball mill for regrinding, which reduces the production efficiency. At the same time, the quartz block is transported to the ball mill The conveyor belt is used in the conveyor belt, and the dust in the conveying process is large, which seriously pollutes the production environment and affects the health of workers.

Contents of the invention

The technical problem to be solved by the utility model is to provide a quartz sand dry process production device which is reasonable in design, convenient in use, saves production space and improves production efficiency in view of the deficiencies of the prior art.

The technical problem to be solved by the utility model is achieved through the following technical solutions. The utility model is a dry process production device for quartz sand, which includes a ball mill, a grading unit and a hopper arranged on a grading platform. The ball mill is designed to There is an oblique cylinder with a grinding body, one end of the cylinder is equipped with a hollow shaft for feeding, the other end of the cylinder is equipped with a hollow shaft for discharging, the hollow shaft for discharging and the hollow shaft for feeding are connected with the machine The bearing seats I on the frame are connected, the classification platform is set at the outer end of the hollow shaft for feeding the cylinder, and the classification unit includes classifiers and cyclone separators arranged on both sides of the ball mill. It is characterized in that: The outer end of the cylinder discharge hollow shaft is equipped with a discharge screening device. There is a spiral conveying pipeline between the discharge screening device and the classifier. The lower part of the classifier is provided with a return pipe, and the return pipe is connected with the feeding hollow shaft;

The discharge screening device includes a cylinder screen opposite to the discharge hollow shaft of the ball mill and a support frame arranged under the cylinder screen, the axis of the cylinder screen is collinear with the axis of the discharge hollow shaft, and the cylinder The inner end of the sieve is connected with the discharge hollow shaft through the hollow transmission shaft, and the bearing seat II supporting the hollow transmission shaft is arranged on the support frame, and the support frame outside the bearing seat II is provided with a protective screen covering the cylindrical sieve. In the dust box, there is a blanking gap between the wall of the dustproof box opposite to the outer end of the cylindrical sieve and the outer end of the cylindrical sieve, and a coarse material blanking opening is arranged at the bottom of the dustproof box opposite to the blanking gap. The bottom of the dust-proof box inside the coarse material discharge port is provided with a fine material discharge port opposite to the cylindrical sieve, a fine material discharge hopper is provided at the fine material discharge port, and a coarse material discharge hopper is provided at the coarse material discharge port , Coarse material collection device is installed on the coarse material drop hopper.

The technical problem to be solved by the utility model can also be further realized through the following technical solutions. An observation port is provided on the wall of the dust-proof box opposite to the outer end of the cylindrical screen, and a door panel is provided at the observation port to cover the observation port. The door panel is hinged to the box wall on one side of the viewing port.

The technical problem to be solved by the utility model can also be further realized by the following technical scheme, the bottom of the dustproof box is provided with a vertical partition plate separating the coarse material blanking port and the fine material blanking port, The divider is flush with the outer end of the cylinder screen.

The technical problem to be solved by the utility model can be further realized through the following technical solutions, the inclination angle of the cylinder is 10°-30°.

The utility model first screens the ground material by setting a discharge screening device, thereby improving the purity of the material fineness, thereby improving the classification accuracy of the product, and avoiding the damage of the coarse material to the classification equipment and the impact on the classification accuracy. Influence; the classification unit and the hopper are arranged outside the hollow shaft of the cylinder, and the unqualified materials are transported back to the ball mill for re-grinding in the shortest distance, shortening the conveying distance of unqualified products, and further improving the classification efficiency and classification accuracy; The hollow drive shaft ensures that the ground material enters the discharge screening device smoothly; a blanking gap is set to facilitate the separation of coarse material and fine material, and to ensure the smooth discharge of coarse material; a fine material discharge hopper and a coarse material discharge hopper are provided , improve the grinding efficiency; set up a spiral conveying pipeline, so that the sieved quartz sand is transported to the classifier at the shortest distance, shortening the conveying distance of the quartz sand, improving the production efficiency of the quartz sand, reducing dust pollution, and ensuring good quality Production Environment. Compared with the prior art, it has reasonable design, simple structure and convenient use, improves production safety and production efficiency, and shortens the reverse processing process.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the structural representation of classification unit;

Fig. 3 is a structural schematic diagram of a discharge screening device.

Detailed ways

The specific technical solutions of the present utility model are further described below with reference to the accompanying drawings, so that those skilled in the art can further understand the present invention without constituting a limitation on their rights.

Referring to Figures 1-3, a quartz sand dry process production device includes a ball mill 3, a classifying unit and a hopper 9 arranged on a classifying platform 1, the ball mill 3 is provided with an obliquely arranged cylinder, and a grinding machine is arranged in the cylinder. One end of the cylinder is provided with a hollow shaft 2 for feeding, and the other end of the cylinder is provided with a hollow shaft for discharging 4, the hollow shaft for discharging 4 and the hollow shaft for feeding 2 are connected with the bearing seat I5 on the frame , the classification platform 1 is arranged at the outer end of the barrel feeding hollow shaft 2, the classifying unit includes classifiers 8 and cyclone separators 10 arranged on both sides of the ball mill, and at the outer end of the barrel discharging hollow shaft 4 The outer end is equipped with a discharge screening device 6, and a spiral conveying pipeline 7 is arranged between the discharge screening device 6 and the classifier 8, and the spiral conveying pipeline 7 is connected with the feed inlet located at the lower part of the classifier 8, and the The lower part of the classifier 8 is provided with a return pipe 11, and the return pipe 11 is connected with the feeding hollow shaft 2;

The discharge screening device includes a cylinder screen 14 arranged opposite to the discharge hollow shaft 4 of the ball mill 3 and a support frame 19 arranged below the cylinder screen 14, the axis of the cylinder screen 14 and the axis of the discharge hollow shaft 4 Collinear, the inner end of the cylindrical screen 14 is connected to the hollow shaft 4 through the hollow transmission shaft 20, and the bearing seat II12 supporting the hollow transmission shaft 20 is arranged on the support frame 19, and the outer part of the bearing seat II12 The support frame 19 is provided with a dustproof box 13 covering the cylindrical sieve 14, and a blanking gap 15 is provided between the wall of the dustproof box 13 opposite to the outer end of the cylindrical sieve 14 and the outer end of the cylindrical sieve 14. The bottom of the dustproof box 13 is provided with a coarse material blanking opening opposite to the blanking gap 15, and the bottom of the dustproof box 13 inside the coarse material blanking opening is provided with a fine material blanking opening opposite to the cylindrical sieve 14. A fine material blanking hopper 18 is provided at the material blanking opening, a coarse material blanking hopper 17 is provided at the coarse material blanking opening, and a coarse material collecting device is housed on the coarse material blanking hopper 17.

The dust-proof box 13 box walls relative to the cylindrical sieve 14 outer ends are provided with an observation port, and the observation port is provided with a door panel 16 covering the observation port, and the door panel 16 is hinged with the case wall on the observation port side.

The bottom of the dustproof box 13 is provided with a vertical partition plate 21 separating the coarse material discharge port and the fine material discharge port, and the vertical partition plate 21 is flush with the outer end of the cylindrical sieve 14 .

The inclination angle of the cylinder is 10°-30°.

Claims (4)

1. A dry process production device for quartz sand, comprising a ball mill and a grading unit and a hopper arranged on a grading platform, the ball mill is provided with a cylindrical body inclined to be provided with a grinding body in the cylindrical body, and one end of the cylindrical body is provided with The hollow shaft for feeding, the other end of the cylinder is provided with a hollow shaft for discharging, the hollow shaft for discharging and the hollow shaft for feeding are connected with the bearing seat I on the frame, and the classification platform is set in the hollow feeding of the cylinder The outer end of the shaft, the classification unit includes classifiers and cyclone separators located on both sides of the ball mill, characterized in that: a discharge screening device is installed at the outer end of the cylinder discharge hollow shaft, the discharge screen There is a spiral conveying pipeline between the sub-device and the classifier, and the spiral conveying pipeline is connected with the feed inlet at the lower part of the classifier, and a return pipe is arranged at the lower part of the classifier, and the return pipe is connected with the hollow shaft of the feed. connected; The discharge screening device includes a cylinder screen opposite to the discharge hollow shaft of the ball mill and a support frame arranged under the cylinder screen, the axis of the cylinder screen is collinear with the axis of the discharge hollow shaft, and the cylinder The inner end of the sieve is connected with the discharge hollow shaft through the hollow transmission shaft, and the bearing seat II supporting the hollow transmission shaft is arranged on the support frame, and the support frame outside the bearing seat II is provided with a protective screen covering the cylindrical sieve. In the dust box, there is a blanking gap between the wall of the dustproof box opposite to the outer end of the cylindrical sieve and the outer end of the cylindrical sieve, and a coarse material blanking opening is arranged at the bottom of the dustproof box opposite to the blanking gap. The bottom of the dust-proof box inside the coarse material discharge port is provided with a fine material discharge port opposite to the cylindrical sieve, a fine material discharge hopper is provided at the fine material discharge port, and a coarse material discharge hopper is provided at the coarse material discharge port , Coarse material collection device is installed on the coarse material drop hopper. 2. The quartz sand dry process production device according to claim 1, characterized in that: the wall of the dust-proof box opposite to the outer end of the cylinder screen is provided with an observation port, and the observation port is provided with a door plate covering the observation port , the door panel is hinged with the box wall on the side of the observation port. 3. The quartz sand dry process production device according to claim 1, characterized in that: the bottom of the dust-proof box is provided with a vertical partition that separates the coarse material blanking port and the fine material blanking port, The vertical dividers are flush with the outer ends of the drum screen. 4. The quartz sand dry production device according to claim 1, characterized in that: the inclination angle of the cylinder is 10°-30°.