A grinding device for barite powder

Abstract

The utility model provides a grinding device for barite powder, including a grinding cylinder with a conical cylinder at the lower end, a discharge port, a support leg, a feed hopper, a discharge guide cylinder, a grinding chamber, two grinding rollers, a drive module, a screen filter cylinder, a discharge pipe, a control valve, a triangular prism-shaped mounting plate, a stirring motor, a stirring shaft, a stirring blade, a first scraper plate, and a second scraper plate adapted to the lower inner wall of the grinding cylinder is provided at the lower end of the stirring shaft through a second connecting rod. According to the grinding device for barite powder of the utility model, not only can the basic needs of crushing barite and screening barite powder be met, but also the powder adhering to the inner wall of the crushing chamber can be scraped and cleaned by the scraper structure, thereby improving the thoroughness of discharging and avoiding waste of powder.

Description

Technical Field

[0001] The utility model belongs to the technical field of barite powder processing, and particularly relates to a grinding device for barite powder. Background Art

[0002] In the process of grinding barite powder, it is necessary to grind and crush barite. The existing grinding device for barite powder can meet the basic needs of grinding barite powder, and the grinding chamber can usually be tilted to improve the smoothness of the feeding of the ground barite powder. However, since some powder will adhere to the inner wall of the grinding chamber, and there is often a lack of a scraping structure for scraping and cleaning the powder adhered to the inner wall of the grinding chamber, it will cause some powder to be difficult to completely leave the grinding chamber, which is easy to cause waste of powder and bring great inconvenience to people's use.

[0003] For example, the utility model with announcement number CN 217550002 U discloses a crushing and grinding device for barite powder. In the technical solution of this patent, the bottom inner wall of the grinding box is conical, so that a large amount of crushed barite powder can smoothly leave the grinding box. However, some powder will adhere to the inner wall of the grinding box, and the device is not provided with a cleaning structure for cleaning the powder adhered to the inner wall of the grinding box, which will bring great inconvenience to people's use and easily cause waste of barite powder. Utility Model Content

[0004] In view of this, the utility model aims at the deficiencies of the prior art and provides a grinding device for barite powder, which can not only meet the basic needs of crushing barite and screening barite powder, but also can scrape and clean the powder adhered to the inner wall of the crushing chamber through the scraping structure, thereby improving the thoroughness of discharging and avoiding waste of powder.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a grinding device for barite powder, comprising a grinding cylinder with a conical cylindrical shape at the lower end, a discharge port is arranged at the bottom of the grinding cylinder, a supporting leg is arranged at the bottom side end of the grinding cylinder, a feeding hopper is arranged at the top of the grinding cylinder, a discharge guide cylinder with a conical cylindrical shape at the lower end is arranged on the inner wall of the upper end of the inner part of the grinding cylinder, the upper end of the inner part of the grinding cylinder and the discharge guide cylinder form a grinding chamber, two grinding rollers are arranged inside the grinding cylinder for rotating in the front and rear directions, a driving module for driving the two grinding rollers to rotate is arranged at the front side end of the grinding cylinder, and a gear matched with the discharge guide cylinder is arranged at the lower end of the inner part of the grinding cylinder through a cross plate The filter cylinder is provided with a discharge pipe extending to the outside of the grinding cylinder at the bottom side end of the filter cylinder, a control valve is provided at the inner side end of the discharge pipe, a triangular prism-shaped mounting plate is also provided on the inner wall of the grinding cylinder, a stirring motor is vertically provided at the bottom of the mounting plate, a stirring shaft is provided at the lower end of the output shaft of the stirring motor with a discharge port passing through the discharge guide cylinder and the bottom of the filter cylinder and extending to the discharge port, a stirring blade matched with the filter cylinder is provided on the stirring shaft, a first scraper plate matched with the inner wall of the discharge guide cylinder is provided at the upper end of the stirring shaft through a first connecting rod, and a second scraper plate matched with the lower inner wall of the grinding cylinder is provided at the lower end of the stirring shaft through a second connecting rod. The control valve is a solenoid valve.

[0006] As a further improvement of the utility model, a third scraper plate adapted to the sieve cylinder is also provided at the side end of the stirring blade.

[0007] As a further improvement of the present invention, bearings corresponding to the corresponding grinding rollers are respectively arranged on the inner walls of the front and rear ends of the grinding cylinder, and connecting shafts connected to the inner rings of the corresponding bearings are respectively arranged on the two grinding rollers, and the two connecting shafts on the front side extend to the front side of the grinding cylinder.

[0008] As a further improvement of the utility model, the driving module includes a driving motor horizontally arranged at the front end of the grinding cylinder, a driving pulley is arranged on the output shaft of the driving motor, a driven pulley matched with the driving pulley is arranged on the front connecting shaft, and a transmission belt is arranged between the driving pulley and the driven pulley.

[0009] As a further improvement of the present invention, a transparent observation window is also provided at the lower portion of the front end of the grinding cylinder.

[0010] As a further improvement of the present invention, an extension plate is further provided at the bottom side end of the supporting leg, and anchor bolts for fixing to the ground are further provided on the extension plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] First, just start the stirring motor to make the stirring shaft rotate and run. The stirring shaft will stir and screen the powder in the filter drum through the stirring blades. The stirring shaft will also scrape and clean the powder adhering to the lower inner wall of the grinding chamber, that is, the inner wall of the material discharge guide cylinder, through the first connecting rod and the first scraper plate, so that the powder can quickly and thoroughly leave the material discharge guide cylinder and fall into the filter drum for screening. When a large amount of incompletely crushed powder is retained in the filter drum, the completely crushed small particles are crushed and discharged from the filter drum. After the powder is in the cylinder, the addition of barite to the feed hopper can be stopped, and then the control valve can be opened to discharge the large volume of incompletely crushed powder trapped in the filter cylinder out of the filter cylinder and the grinding cylinder through the discharge pipe; the stirring shaft can also scrape and clean the powder adhering to the inner wall of the filter cylinder through the third scraper plate, so as to better screen the powder and better discharge the large-particle powder. The stirring shaft can also scrape the powder adhering to the inner wall of the lower part of the grinding cylinder through the second connecting rod and the second scraper plate, so that the powder can be discharged more thoroughly through the discharge port.

[0013] Secondly, by starting the driving motor, the two grinding rollers can be rotated in cooperation with the connecting shaft of the bearing through the driving pulley, the driven pulley and the transmission belt, so as to prepare for the grinding of the barite.

[0014] Thirdly, through the transparent observation window, the user can conveniently check the conditions inside the grinding cylinder, such as the amount of large particles of incompletely crushed barite trapped in the sieve cylinder.

[0015] Fourthly, the extension plate and the anchor bolts can prevent the device from easily shifting and tipping over during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the connecting shaft, the material feeding guide cylinder, the bearing, the grinding roller, and the driving module of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the material discharge guide cylinder, the screening cylinder, the material discharge pipe, the control valve, the mounting plate, the stirring motor, the stirring shaft, the first connecting rod, the first scraping plate, the second connecting rod, the second scraping plate, and the cross plate of the utility model;

[0020] Figure 4It is a structural schematic diagram of a stirring motor, a stirring shaft, a stirring blade, a first connecting rod, a first scraper plate, a second connecting rod, a second scraper plate, and a third scraper plate of the utility model.

[0021] In the figure: 101, grinding cylinder; 102, discharge port; 103, support leg; 104, feed hopper; 105, connecting shaft; 106, unloading guide cylinder; 107, bearing; 108, grinding roller; 109, filter cylinder; 110, discharge pipe; 111, control valve; 112, mounting plate; 113, stirring motor; 114, stirring shaft; 115, stirring blade; 116, first connecting rod; 117, first scraper plate; 118, second connecting rod; 119, second scraper plate; 120, third scraper plate; 121, cross plate; 201, driving motor; 202, driving pulley; 203, driven pulley; 204, transmission belt; 301, transparent observation window; 302, extension plate; 303, anchor bolt. DETAILED DESCRIPTION

[0022] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0023] like Figure 1 , 2As shown in , 3 and 4, a grinding device for barite powder comprises a grinding cylinder 101 with a conical lower end, a discharge port 102 is arranged at the bottom of the grinding cylinder 101, a supporting leg 103 is arranged at the bottom side end of the grinding cylinder 101, a feeding hopper 104 is arranged at the top of the grinding cylinder 101, a discharge guide cylinder 106 with a conical lower end is arranged on the inner wall of the inner upper end of the grinding cylinder 101, the inner upper end of the grinding cylinder 101 and the discharge guide cylinder 106 form a grinding chamber, two grinding rollers 108 are arranged inside the grinding cylinder 101 for rotating along the front-back direction, a driving module for driving the two grinding rollers 108 to rotate is arranged at the front side end of the grinding cylinder 101, a sieve filter cylinder 109 matched with the discharge guide cylinder 106 is arranged at the bottom side end of the sieve filter cylinder 109 There is a discharge pipe 110 extending to the outside of the grinding cylinder 101, and a control valve 111 is provided at the inner end of the discharge pipe 110. A triangular prism-shaped mounting plate 112 is also provided on the inner wall of the grinding cylinder 101, and a stirring motor 113 is vertically provided at the bottom of the mounting plate 112. The lower end of the output shaft of the stirring motor 113 is provided with a stirring shaft 114 that passes through the discharge port of the discharge guide cylinder 106 and the bottom of the filter cylinder 109 and extends to the discharge port 102. The stirring shaft 114 is provided with a stirring blade 115 that matches the filter cylinder 109. The upper end of the stirring shaft 114 is provided with a first scraper plate 117 that matches the inner wall of the discharge guide cylinder 106 through a first connecting rod 116, and the lower end of the stirring shaft 114 is provided with a second scraper plate 119 that matches the lower inner wall of the grinding cylinder 101 through a second connecting rod 118. The control valve 111 is a solenoid valve.

[0024] like Figure 2 As shown, bearings 107 corresponding to the corresponding grinding rollers 108 are respectively provided on the inner walls of the front and rear side ends of the grinding cylinder 101, and connecting shafts 105 connected to the inner rings of the corresponding bearings 107 are respectively provided on the two grinding rollers 108, and the two connecting shafts 105 on the front side extend to the front side of the grinding cylinder 101.

[0025] like Figure 1 , 2 As shown, the driving module includes a driving motor 201 horizontally arranged at the front end of the grinding cylinder 101, a driving pulley 202 is arranged on the output shaft of the driving motor 201, a driven pulley 203 adapted to the driving pulley 202 is arranged on the front connecting shaft 105, and a transmission belt 204 is arranged between the driving pulley 202 and the driven pulley 203.

[0026] The user can start the driving motor 201, and through the driving pulley 202, the driven pulley 203 and the transmission belt 204, the two grinding rollers 108 rotate in cooperation with the connecting shaft 105 of the bearing 107, so as to prepare for the grinding of the barite, and start the stirring motor 113.

[0027] Then, the barite to be ground is added into the grinding cylinder 101 through the feed hopper 104, and the barite falls onto the two grinding rollers 108 to be ground. The ground powder falls into the discharge guide cylinder, and then leaves the discharge guide cylinder and falls into the screening cylinder 109 for screening. After the powder falls into the discharge guide cylinder, it can be stirred by the stirring shaft 114, the connecting rod and the first scraper plate 117, and the powder adhering to the inner wall of the lower part of the grinding chamber, i.e., the inner wall of the discharge guide cylinder 106, is scraped and cleaned, so that the powder can quickly and thoroughly leave the discharge guide cylinder 106.

[0028] After the powder enters the screen filter 109, it will be stirred by the stirring shaft 114 and the stirring blades 115, so that the completely crushed small-particle powder passes through the filter holes of the screen filter 109, falls into the lower end of the inner part of the crushing box, and then leaves the grinding cylinder 101 through the discharge port 102; in the process of the material leaving the grinding cylinder 101 through the discharge port 102, the stirring shaft 114 can also scrape the powder adhering to the lower inner wall of the grinding cylinder 101 through the second connecting rod 118 and the second scraper plate 119, so that the powder can be discharged more thoroughly through the discharge port 102; the large-particle powder that is not completely crushed will be retained in the screen filter 109.

[0029] When a large amount of incompletely crushed powder is retained in the filter cartridge 109 and the completely crushed small particles are discharged from the filter cartridge 109, the addition of barite to the feed hopper 104 can be stopped, and then the control valve 111 can be opened to discharge the large volume of incompletely crushed powder retained in the filter cartridge 109 out of the filter cartridge 109 and the grinding cylinder 101 through the discharge pipe 110.

[0030] According to another embodiment of the present invention, Figure 1 As shown, a transparent observation window 301 is also provided at the lower front end of the grinding cylinder 101. Through the transparent observation window 301, the user can conveniently check the situation inside the grinding cylinder 101, such as the amount of large particles of barite that are not completely crushed and trapped in the filter cylinder 109.

[0031] According to another embodiment of the present invention, Figure 1As shown, an extension plate 302 is also provided at the bottom side of the support leg 103, and an anchor bolt 303 for fixing to the ground is also provided on the extension plate 302. The anchor bolt 303 can pass through the extension plate 302 and connect to the ground, thereby preventing the device from easily deflecting and tipping over during operation.

[0032] According to another embodiment of the present invention, Figure 4 As shown, the side end of the stirring blade 115 is also provided with a third scraper plate 120 adapted to the filter cylinder 109. When the powder in the filter cylinder 109 is sieved, the stirring shaft 114 also scrapes and cleans the powder adhering to the inner wall of the filter cylinder 109 through the third scraper plate 120 to prevent the powder from adhering to the inner wall of the filter cylinder 109 and blocking the filter holes of the filter cylinder 109, thereby improving the efficiency and effect of sieving.

[0033] When cleaning the large-particle powder trapped in the filter cylinder 109, the stirring shaft 114 will also scrape and clean the large-particle powder adhering to the inner wall of the filter cylinder 109 through the third scraper plate 120, thereby improving the efficiency and thoroughness of the large-particle powder discharge.

[0034] The above are preferred implementations of the present utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A grinding device for barite powder, comprising a grinding cylinder (101) with a conical lower end, a discharge port (102) provided at the bottom of the grinding cylinder (101), and a supporting leg (103) provided at the bottom side end of the grinding cylinder (101), characterized in that: The top of the grinding cylinder (101) is provided with a feed hopper (104); the inner wall of the upper end of the grinding cylinder (101) is provided with a material discharge guide cylinder (106) whose lower end is conical; the upper end of the grinding cylinder (101) and the material discharge guide cylinder (106) form a grinding chamber; two grinding rollers (108) are provided inside the grinding cylinder (101) for rotation in the front-to-back direction; a driving module for driving the two grinding rollers (108) to rotate is provided at the front side end of the grinding cylinder (101); a screen filter cylinder (109) adapted to the material discharge guide cylinder (106) is provided at the lower end of the grinding cylinder (101) through a transverse plate (121); a discharge pipe (110) extending to the outside of the grinding cylinder (101) is provided at the bottom side end of the screen filter cylinder (109); a control valve (110) is provided at the inner side end of the discharge pipe (110); 1), a triangular prism-shaped mounting plate (112) is also arranged on the inner wall of the grinding cylinder (101), a stirring motor (113) is vertically arranged at the bottom of the mounting plate (112), a stirring shaft (114) is arranged at the lower end of the output shaft of the stirring motor (113), the stirring shaft passes through the discharge port of the discharge guide cylinder (106) and the bottom of the sieve filter cylinder (109) and extends to the discharge port (102), a stirring blade (115) matched with the sieve filter cylinder (109) is arranged on the stirring shaft (114), a first scraper plate (117) matched with the inner wall of the discharge guide cylinder (106) is arranged at the upper end of the stirring shaft (114) through a first connecting rod (116), and a second scraper plate (119) matched with the lower inner wall of the grinding cylinder (101) is arranged at the lower end of the stirring shaft (114) through a second connecting rod (118).

2. The grinding device for barite powder according to claim 1, characterized in that: A third scraper plate (120) adapted to the filter cylinder (109) is also provided at the side end of the stirring blade (115).

3. The grinding device for barite powder according to claim 2, characterized in that: Bearings (107) corresponding to the corresponding grinding rollers (108) are respectively arranged on the inner side walls of the front and rear side ends of the grinding cylinder (101), and connecting shafts (105) connected to the inner rings of the corresponding bearings (107) are respectively arranged on the two grinding rollers (108), and the two connecting shafts (105) on the front side extend to the front side of the grinding cylinder (101).

4. The grinding device for barite powder according to claim 3, characterized in that: The driving module comprises a driving motor (201) horizontally arranged at the front end of the grinding cylinder (101); a driving pulley (202) is arranged on the output shaft of the driving motor (201); a driven pulley (203) matched with the driving pulley (202) is arranged on the front connecting shaft (105); and a transmission belt (204) is arranged between the driving pulley (202) and the driven pulley (203).

5. The grinding device for barite powder according to claim 4, characterized in that: A transparent observation window (301) is also provided at the lower portion of the front end of the grinding cylinder (101).

6. The grinding device for barite powder according to claim 5, characterized in that: An extension plate (302) is also provided at the bottom side end of the support leg (103), and an anchor bolt (303) for fixing to the ground is also provided on the extension plate (302).

7. The grinding device for barite powder according to claim 6, characterized in that: The control valve (111) is a solenoid valve.

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