Grinding equipment for ground phosphate rock processing

Abstract

The utility model relates to the technical field of ground phosphate rock, and discloses grinding equipment for ground phosphate rock processing. According to the utility model, the filter layer comprises a filter layer shell, a first-stage screen and a second-stage screen, connecting shafts are mounted on two sides of one end, far away from the spring, of the second-stage screen, a vibration assembly is arranged on one side, close to the spring, of the filter layer shell, and a pneumatic conveying pipe is arranged on one side, close to the discharging pipe, of the filter layer shell; phosphate ore is ground by the grinding layer and then falls into the first-stage screen, large-particle impurities are screened out, phosphate rock powder and phosphate ore particles which are not fully ground fall into the second-stage screen, the second-stage screen is vibrated through the vibration assembly, the phosphate ore particles which are not fully ground roll to the pneumatic conveying pipe under the action of gravity, and the phosphate ore particles are conveyed to the second-stage screen. The phosphorite powder is ground by the grinding layer until the phosphorite powder is completely ground into the phosphorite powder meeting the standard, and the phosphorite powder is collected by the discharging pipe, so that the problem that the grinding efficiency is reduced within the time when the blockage clearing assembly is not started in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of phosphate rock powder, in particular to grinding equipment for processing phosphate rock powder. Background Art

[0002] Phosphate rock, a general term for economically viable phosphate minerals, is an important chemical raw material. Its chemical composition primarily consists of calcium oxide, phosphorus pentoxide, and small amounts of fluorine and silicon dioxide. While many phosphorus-containing minerals exist naturally, the primary ores of industrial significance are apatite and phosphate rock. These two ores, ground to a specified fineness, can be used to produce phosphate fertilizer, offering stable and long-lasting effects and suitable as a base fertilizer on acidic soils.

[0003] The existing announcement CN221108416U provides a mineral powder grinding device, which relates to the field of mineral powder processing technology; when in use, the mineral powder is added into the shell from the feed port, and the mineral powder falling on the first filter screen will be ground by the grinding roller, and the mineral powder falling on the second filter screen, among which the mineral powder with a particle size smaller than the filter screen aperture can directly pass through the filter screen and fall, and the mineral powder with a particle size larger than the filter screen aperture rolls onto the first filter screen under the action of gravity. The ground mineral powder is collected by the collecting component and discharged from the shell from the discharge port, effectively solving the problem of mineral powder accumulating at both ends of the filter screen and not participating in grinding, without manual operation, improving production efficiency and reducing safety hazards; by setting a clearing component, the first filter screen can be cleared after long-term use, which is convenient for use.

[0004] However, in the above-mentioned prior art, since the clearing assembly is activated only after a long period of use, if the filter is clogged during the time when the clearing assembly is not activated, the grinding efficiency during this period will be greatly affected.

[0005] Therefore, in order to solve such problems, we proposed a grinding equipment for processing phosphate rock powder. Utility Model Content

[0006] The purpose of the utility model is to provide a grinding device for processing phosphate rock powder, aiming to solve the problem in the above-mentioned background technology that the grinding efficiency will be reduced during the time when the clearing component is not started.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a grinding equipment for processing phosphate rock powder, comprising a feeding layer and a grinding layer fixedly connected to the bottom of the feeding layer, the grinding layer is fixedly connected to a filter layer on the side away from the feeding layer, a discharge pipe is welded to one side of the filter layer, the filter layer comprises a filter layer shell and a first-level screen fixedly connected to the upper side of the filter layer shell, the filter layer shell is fixedly connected to the lower end of the grinding layer, springs are installed on both sides below one end of the first-level screen, the end of the spring away from the first-level screen is fixedly connected to a second-level screen, connecting shafts are installed on both sides of the second-level screen away from one end of the spring, the end of the connecting shaft away from the second-level screen is movably connected to the inner wall of the filter layer shell, a vibration component is provided on the side of the filter layer shell close to the spring; a pneumatic conveying pipe is provided on the side of the filter layer shell close to the discharge pipe, and the other end of the pneumatic conveying pipe is fixedly connected to one side of the feeding layer.

[0008] Preferably, the vibration component includes motor 1, one end of which is fixedly connected to one side of the filter layer housing, the driving end of motor 1 is fixedly connected to rotating shaft 1, rotating shaft 1 passes through the filter layer housing, the other end of rotating shaft 1 is movably connected to the filter layer housing, and multiple impact hammers are installed on rotating shaft 1.

[0009] Preferably, a hammer-shaped groove is formed through one side of the filter layer housing, and the hammer-shaped groove matches the impact hammer.

[0010] Preferably, the secondary screen is tilted, with the end close to the spring higher than the end away from the spring.

[0011] Preferably, the upper material layer includes an upper material layer shell and a square groove one opened on one side of the upper material layer shell, the lower end of the upper material layer shell is fixedly connected to the grinding layer, and the square groove one matches the output end of the pneumatic conveying pipe.

[0012] Preferably, the grinding layer includes a grinding layer outer shell and a second rotating shaft arranged on the inner side of the grinding layer outer shell. The upper end of the grinding layer outer shell is fixedly connected to the lower end of the feeding layer outer shell. Three second rotating shafts are provided. A bearing is provided at one end of the second rotating shaft. The bearing is fixedly connected to one side of the grinding layer outer shell. A grinding roller is installed on the outer side of the second rotating shaft. The end of the second rotating shaft arranged in the middle away from the bearing is fixedly connected to a driving gear. A second motor is installed on the outer side of the driving gear. The driving end of the second motor is fixedly connected to the second rotating shaft. Driven gears are provided on both sides of the driving gear, and the driven gear is meshed with the driving gear.

[0013] Preferably, the diameter of the driving gear is smaller than that of the driven gears on both sides.

[0014] Preferably, a square groove 2 and a square groove 3 are provided on a side of the filter layer housing away from the hammer groove, the square groove 2 matches the input end of the pneumatic conveying pipe, and the square groove 3 matches the discharge pipe.

[0015] The utility model has the following beneficial effects:

[0016] In the utility model, the filter layer includes a filter layer shell and a primary screen fixedly connected to the upper side of the filter layer shell, springs are installed on both sides below one end of the primary screen, a secondary screen is fixedly connected to the end of the spring away from the primary screen, and connecting shafts are installed on both sides of the secondary screen away from the end of the spring, a vibration component is provided on the side of the filter layer shell close to the spring, and a pneumatic conveying pipe is provided on the side of the filter layer shell close to the discharge pipe, the phosphate rock falls into the primary screen after being ground by the grinding layer, and large particles of impurities are screened out, and the phosphate rock powder and insufficiently ground phosphate rock particles fall into the secondary screen, and the secondary screen is vibrated by the vibration component, and the insufficiently ground phosphate rock particles are rolled toward the pneumatic conveying pipe under the action of gravity, and returned to the upper material layer through the pneumatic conveying pipe, and ground again by the grinding layer until they are completely ground into phosphate rock powder that meets the standards and are collected from the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of a grinding device for processing phosphate rock powder proposed in the present invention;

[0018] Figure 2 This is a three-dimensional schematic diagram of the feeding layer housing, grinding layer housing, and filtering layer housing in a grinding device for processing phosphate rock powder proposed in the present invention;

[0019] Figure 3 A three-dimensional diagram of the grinding layer in a grinding device for processing phosphate rock powder proposed in this utility model Figure 1 ;

[0020] Figure 4 A three-dimensional diagram of the grinding layer in a grinding device for processing phosphate rock powder proposed in this utility model Figure 2 ;

[0021] Figure 5 This is a schematic plan view of a filter layer in a grinding device for processing phosphate rock powder proposed in the present invention;

[0022] Figure 6 This is a three-dimensional schematic diagram of a vibration component in a grinding device for processing phosphate rock powder proposed in the utility model.

[0023] Legend:

[0024] 1. Feeding layer; 11. Feeding layer shell; 111. Square trough 1; 2. Grinding layer; 21. Grinding layer shell; 22. Rotating shaft 2; 23. Bearing; 24. Grinding roller; 25. Driving gear; 26. Motor 2; 27. Driven gear; 3. Filtering layer; 31. Filtering layer shell; 311. Square trough 2; 312. Square trough 3; 313. Hammer trough; 32. Primary screen; 33. Spring; 34. Secondary screen; 35. Connecting shaft; 36. Vibrating assembly; 361. Motor 1; 362. Rotating shaft 1; 363. Impact hammer; 4. Discharge pipe; 5. Pneumatic conveying pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," "outside," etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the accompanying drawings and are used only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific position, be constructed and operate in a specific position. Therefore, they should not be understood as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected. They can be mechanically connected or electrically connected. They can be directly connected, indirectly connected through an intermediate medium, or can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0027] See also Figure 1 、 Figure 5The utility model provides an embodiment: a grinding device for processing phosphate rock powder, comprising a feeding layer 1 and a grinding layer 2 fixedly connected to the bottom of the feeding layer 1, a filter layer 3 is fixedly connected to the side of the grinding layer 2 away from the feeding layer 1, a discharge pipe 4 is welded to one side of the filter layer 3, the filter layer 3 comprises a filter layer shell 31 and a primary screen 32 fixedly connected to the upper side of the filter layer shell 31, the filter layer shell 31 is fixedly connected to the lower end of the grinding layer 2, springs 33 are installed on both sides below one end of the primary screen 32, the end of the spring 33 away from the primary screen 32 is fixedly connected to the secondary screen 34, the two sides of the secondary screen 34 away from one end of the spring 33 are installed with connecting shafts 35, the end of the connecting shaft 35 away from the secondary screen 34 is connected to the filter layer The inner wall of the outer shell 31 is movably connected, and a vibration component 36 is provided on the side of the filter layer outer shell 31 close to the spring 33; a pneumatic conveying pipe 5 is provided on the side of the filter layer outer shell 31 close to the discharge pipe 4, and the other end of the pneumatic conveying pipe 5 is fixedly connected to one side of the upper material layer 1. After the phosphate rock is ground by the grinding layer 2, it falls into the primary screen 32 to screen out large particles of impurities, and the phosphate rock powder and the insufficiently ground phosphate rock particles fall into the secondary screen 34. The vibration component 36 makes the secondary screen 34 vibrate, and the insufficiently ground phosphate rock particles are rolled toward the pneumatic conveying pipe 5 under the action of gravity, and returned to the upper material layer 1 through the pneumatic conveying pipe 5, and ground again by the grinding layer 2 until they are completely ground into phosphate rock powder that meets the standards and are collected by the discharge pipe 4.

[0028] See also Figure 6 The vibration component 36 includes a motor 361, one end of which is fixedly connected to one side of the filter layer housing 31, and a driving end of the motor 361 is fixedly connected to a rotating shaft 362, which passes through the filter layer housing 31, and the other end of the rotating shaft 362 is movably connected to the filter layer housing 31. A plurality of impact hammers 363 are installed on the rotating shaft 362, and the rotating shaft 362 is driven to rotate by the motor 361, so that the impact hammers 363 installed on the rotating shaft 362 hit the secondary screen 34 to generate vibration.

[0029] See also Figure 6 A hammer-shaped groove 313 is formed on one side of the filter layer housing 31 , and the hammer-shaped groove 313 matches the impact hammer 363 .

[0030] See also Figure 5 The secondary screen 34 is tilted, with the end close to the spring 33 higher than the end away from the spring 33, so that the crushed phosphate rock can roll down to the pneumatic conveying pipe 5 under the action of gravity.

[0031] See also Figure 2The feeding layer 1 includes a feeding layer shell 11 and a square groove 111 opened on one side of the feeding layer shell 11. The lower end of the feeding layer shell 11 is fixedly connected to the grinding layer 2. The square groove 111 matches the output end of the pneumatic conveying pipe 5 to re-feed the crushed phosphate rock to the grinding layer 2.

[0032] See also Figure 3 、 Figure 4 The grinding layer 2 includes a grinding layer shell 21 and a rotating shaft 22 arranged on the inner side of the grinding layer shell 21. The upper end of the grinding layer shell 21 is fixedly connected to the lower end of the feeding layer shell 11. Three rotating shafts 22 are provided. One end of the rotating shaft 22 is provided with a bearing 23. The bearing 23 is fixedly connected to one side of the grinding layer shell 21. A grinding roller 24 is installed on the outside of the rotating shaft 22. The end of the rotating shaft 22 arranged in the middle away from the bearing 23 is fixedly connected to the driving gear 25. A motor 26 is installed on the outside of the driving gear 25. The driving end of the motor 26 is fixedly connected to the rotating shaft 22. Driven gears 27 are provided on both sides of the driving gear 25. The driven gear 27 is meshed with the driving gear 25. The driving gear 25 drives the meshed driven gears 27 on both sides to rotate through the motor 26, so that the grinding roller 24 connected through the rotating shaft 22 rotates to grind the phosphate rock.

[0033] See also Figure 4 The diameter of the driving gear 25 is smaller than the driven gears 27 on both sides, so that the rotation speeds of the two adjacent grinding rollers 24 are different, which increases the shear force during grinding and facilitates grinding.

[0034] See also Figure 2 A square groove 2 311 and a square groove 312 are provided on one side of the filter layer housing 31 away from the hammer groove 313 . The square groove 2 311 matches the input end of the pneumatic conveying pipe 5 , and the square groove 312 matches the discharge pipe 4 .

[0035] Working principle: Phosphate ore is dropped from above the feeding layer 1, ground by the grinding roller 24 and falls into the primary screen 32, where large particles of impurities are screened out. Phosphate rock powder and incompletely ground phosphate ore particles fall into the secondary screen 34. The impact hammer 363 causes the secondary screen 34 to vibrate, and the incompletely ground phosphate ore particles are rolled toward the pneumatic conveying pipe 5 under the action of gravity. The particles then return to the feeding layer 1 through the pneumatic conveying pipe 5 and are ground again by the grinding layer 2 until they are completely ground into phosphate rock powder that meets the standards and are collected by the discharge pipe 4.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A grinding device for processing phosphate rock powder, comprising a feeding layer (1) and a grinding layer (2) fixedly connected below the feeding layer (1), a filter layer (3) fixedly connected to the side of the grinding layer (2) away from the feeding layer (1), and a discharge pipe (4) welded to one side of the filter layer (3), characterized in that: The filter layer (3) comprises a filter layer housing (31) and a primary screen (32) fixedly connected to the upper side of the filter layer housing (31); the filter layer housing (31) is fixedly connected to the lower end of the grinding layer (2); springs (33) are installed on both sides below one end of the primary screen (32); an end of the spring (33) away from the primary screen (32) is fixedly connected to a secondary screen (34); a connecting shaft (35) is installed on both sides of the secondary screen (34) away from the end of the spring (33); an end of the connecting shaft (35) away from the secondary screen (34) is movably connected to the inner wall of the filter layer housing (31); and a vibration component (36) is provided on the side of the filter layer housing (31) close to the spring (33); A pneumatic conveying pipe (5) is provided on one side of the filter layer housing (31) close to the discharge pipe (4), and the other end of the pneumatic conveying pipe (5) is fixedly connected to one side of the upper material layer (1).

2. The grinding equipment for processing phosphate rock powder according to claim 1, characterized in that: The vibration assembly (36) includes a motor (361), one end of which is fixedly connected to one side of the filter layer housing (31), a driving end of which is fixedly connected to a rotating shaft (362), which passes through the filter layer housing (31), and the other end of which is movably connected to the filter layer housing (31), and a plurality of impact hammers (363) are installed on the rotating shaft (362).

3. The grinding equipment for processing phosphate rock powder according to claim 2, characterized in that: A hammer-shaped groove (313) is provided through one side of the filter layer housing (31), and the hammer-shaped groove (313) matches the impact hammer (363).

4. The grinding equipment for processing phosphate rock powder according to claim 1, characterized in that: The secondary screen (34) is tilted, with the end close to the spring (33) being higher than the end away from the spring (33).

5. The grinding equipment for processing phosphate rock powder according to claim 1, characterized in that: The feeding layer (1) comprises a feeding layer shell (11) and a square groove (111) opened on one side of the feeding layer shell (11); the lower end of the feeding layer shell (11) is fixedly connected to the grinding layer (2); and the square groove (111) matches the output end of the pneumatic conveying pipe (5).

6. The grinding equipment for processing phosphate rock powder according to claim 5, characterized in that: The grinding layer (2) comprises a grinding layer shell (21) and a second rotating shaft (22) arranged inside the grinding layer shell (21), the upper end of the grinding layer shell (21) is fixedly connected to the lower end of the feeding layer shell (11), three second rotating shafts (22) are provided, one end of the second rotating shaft (22) is provided with a bearing (23), the bearing (23) is fixedly connected to one side of the grinding layer shell (21), a grinding roller (24) is installed on the outside of the second rotating shaft (22), the end of the second rotating shaft (22) arranged in the middle away from the bearing (23) is fixedly connected to a driving gear (25), a second motor (26) is installed on the outside of the driving gear (25), the driving end of the second motor (26) is fixedly connected to the second rotating shaft (22), and driven gears (27) are provided on both sides of the driving gear (25), and the driven gear (27) is meshed with the driving gear (25).

7. The grinding equipment for processing phosphate rock powder according to claim 6, characterized in that: The driving gear (25) has a smaller diameter than the driven gears (27) on both sides.

8. The grinding equipment for processing phosphate rock powder according to claim 3, characterized in that: A second square groove (311) and a third square groove (312) are provided on a side of the filter layer housing (31) away from the hammer groove (313). The second square groove (311) matches the input end of the pneumatic conveying pipe (5), and the third square groove (312) matches the discharge pipe (4).

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