Mineral flour mill

Abstract

The utility model discloses a mineral flour mill, which relates to the technical field of mineral flour mills and comprises a flour mill body, a feed hopper is arranged on the lower portion of the side wall of the flour mill body, a supporting cover is arranged above the feed hopper, the supporting cover is connected with the side wall of the flour mill body, and a spraying frame is arranged inside the supporting cover. A feeding pipe is arranged on the top face of the spraying frame, the feeding pipe upwards penetrates through the supporting cover and is rotationally connected with the supporting cover, a plurality of spraying heads are arranged on the bottom face of the spraying frame, a driving mechanism is arranged on the top face of the supporting cover and used for driving the feeding pipe to rotate, and a conveying pipe is rotationally connected to the feeding pipe. The end, away from the feeding pipe, of the conveying pipe is connected with the storage box through a conveying pump. According to the mineral flour mill, a conditioning agent can be added, so that the use flexibility is improved.

Description

Technical Field

[0001] This utility model relates to the field of mineral grinding mill technology, and specifically to a mineral grinding mill. Background Technology

[0002] Lithium slag is a byproduct of the sulfuric acid process for producing lithium carbonate. The most effective and largest application of lithium slag is as a concrete admixture, used to fill the voids in concrete, replacing a small amount of cement and reducing the cost of concrete production.

[0003] Mineral grinding mills are required when preparing lithium slag concrete admixtures. The process of grinding lithium slag using a mineral grinding mill is as follows: lithium slag material is lifted into a hopper by a bucket elevator. The lithium slag material in the hopper is then conveyed by a belt conveyor to a feed hopper located at the lower side wall of the grinding mill body. The lithium slag material in the feed hopper enters the interior of the grinding mill body, where it is scooped up by blades. The scooped-up lithium slag material is then ground into powder by grinding rollers and grinding rings. The powdered material is blown upwards by airflow in the duct. After being screened by an analyzer, the unqualified powdered material falls back into the grinding mill body for further grinding, while the qualified powdered material is conveyed through pipelines to a cyclone separator. The powdered material is collected by the cyclone separator and finally transported by a screw conveyor.

[0004] The main reason why lithium slag is used as a concrete admixture is because it contains potentially active substances (amorphous Al2O3 and SiO2). However, lithium slag also contains free calcium oxide. The application of large amounts of lithium slag as an admixture in concrete can lead to problems such as low concrete strength and poor concrete impermeability.

[0005] Research has shown that adding a regulator containing metallurgical wastewater during the lithium slag grinding process can not only improve the strength and impermeability of concrete, but also reduce the treatment cost of metallurgical wastewater. The regulator's raw materials are 32.5% metallurgical wastewater, 16% aluminum sulfate, 12.5% ​​sodium fluorosilicate, and 4% complexing agent (EDTA), with water added to make up to 100%, and the above raw materials are mixed evenly.

[0006] However, current mineral grinding mills cannot add modifiers. Therefore, developing a mineral grinding mill that can add modifiers to improve its operational flexibility is a technical problem that needs to be solved. Utility Model Content

[0007] To address the aforementioned shortcomings of existing technologies, this invention proposes a mineral grinding mill that allows the addition of a regulator, thereby improving its operational flexibility.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A mineral grinding mill includes a grinding mill body, a feed hopper located on the lower part of the side wall of the grinding mill body, a support cover located above the feed hopper, the support cover being connected to the side wall of the grinding mill body, a spray frame located inside the support cover, a feed pipe located on the top surface of the spray frame, the feed pipe extending upward through the support cover, the feed pipe being rotatably connected to the support cover, a plurality of nozzles located on the bottom surface of the spray frame, a drive mechanism located on the top surface of the support cover, the drive mechanism being used to drive the feed pipe to rotate, a transmission pipe being rotatably connected to the feed pipe, and the end of the transmission pipe furthest from the feed pipe being connected to a storage tank via a transmission pump.

[0010] Furthermore, the spray frame includes a cover and a body. The cover is connected to the top of the body. The top surface of the cover is provided with the feed pipe. The top surface of the body is provided with a central groove, which is connected to the feed pipe. The periphery of the central groove is provided with multiple radial grooves. The bottom of the radial grooves is provided with an outlet, which is connected to the spray head.

[0011] Furthermore, the top surface of the disc is provided with a first sealing groove, which surrounds the central groove and the radial long groove, and a first sealing ring is provided inside the first sealing groove.

[0012] Furthermore, the disc body is provided with a through hole around its periphery, and the bottom periphery of the disc cover is provided with a screw rod that passes through the through hole. A nut is provided on the screw rod, and the periphery of the disc body is sandwiched between the nut and the bottom periphery of the disc cover.

[0013] Furthermore, the driving mechanism includes a drive motor, a driving gear, and a driven gear. The drive motor is mounted on the support cover, and the output end of the drive motor is provided with a driving gear. The driven gear is located on the outer wall of the feed pipe, and the driving gear and the driven gear cooperate with each other.

[0014] Furthermore, the transmission pipe has a sleeve on the outer side wall at the end away from the transmission pump, and a rotating cavity is provided between the inner side wall of the sleeve and the outer side wall of the transmission pipe. The feed pipe is inserted into the rotating cavity, and the feed pipe and the rotating cavity are rotatably engaged.

[0015] Furthermore, the top wall of the rotating cavity and the top surface of the feed pipe are both provided with a second sealing groove, and the two second sealing grooves are combined to form a sealing cavity, and a second sealing ring is provided inside the sealing cavity.

[0016] The beneficial effects of this utility model are:

[0017] 1. In this utility model, the regulator inside the storage tank is sequentially transferred into the transfer pipe, feed pipe, and spray frame by the transfer pump, and finally sprayed out from the nozzle. The drive mechanism can drive the feed pipe to rotate, the feed pipe can drive the spray frame to rotate, and the spray frame can drive the nozzle to rotate together, so that the regulator is sprayed onto the lithium slag in the feed hopper, realizing the addition of the regulator and improving the flexibility of use.

[0018] 2. The drive mechanism drives the feed pipe to rotate, which in turn drives the spray frame to rotate. The spray frame then drives the nozzle to rotate, allowing the regulator to be sprayed in a rotating manner. This expands the spraying range of the regulator and improves spraying efficiency.

[0019] 3. Inside the grinding mill body, there is an upward airflow that blows the powder material. By adding a regulator at the feed hopper, the regulator sprayed from the nozzle can be prevented from being directly blown away by this airflow, preventing the regulator droplets from being blown away by the airflow, and allowing the regulator to fully contact the lithium slag.

[0020] 4. Because the spray frame is located inside the support cover, and the support cover is located above the feed hopper, when the lithium slag enters the feed hopper, the fine particles in the lithium slag can be blocked by the support cover when they are thrown up. The blocked fine particles can fall into the feed hopper, which can reduce waste.

[0021] 5. By using through holes, bolts, and nuts to assemble the disc body and disc cover in the spray frame, it is easy to disassemble and assemble the disc body and disc cover, thereby facilitating the cleaning of the central tank and radial long tank, preventing dirt accumulation, and making cleaning and maintenance convenient.

[0022] 6. The sealing effect can be improved by setting a first sealing ring and a second sealing ring. Attached Figure Description

[0023] Figure 1 It is a three-dimensional disc. Figure 1 ;

[0024] Figure 2 It is a three-dimensional disc. Figure 2 ;

[0025] Figure 3 This is a three-dimensional view of the first sealing ring;

[0026] Figure 4 It is a three-dimensional assembly of spray frame, nozzles, feed pipe, transfer pipe, transfer pump, and storage tank. Figure 1 ;

[0027] Figure 5 It is a three-dimensional assembly of spray frame, nozzles, feed pipe, transfer pipe, transfer pump, and storage tank. Figure 2 ;

[0028] Figure 6 yes Figure 5 A partial enlarged view of point A in the middle;

[0029] Figure 7 This is a front view of the assembled spray frame, nozzles, feed pipe, transfer pipe, transfer pump, and storage tank;

[0030] Figure 8 This is a structural diagram of the spray frame, spray head, cut-out feed pipe, and cut-out transfer pipe;

[0031] Figure 9 It is a 3D view of a mineral grinding mill;

[0032] Figure 10 This is the front view of a mineral grinding mill;

[0033] Figure 11 yes Figure 10 A magnified view of a section at point B in the middle;

[0034] Figure 12 This is a schematic diagram of the use of a mineral grinding mill.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1-Grinding mill body,

[0037] 2-Feed hopper,

[0038] 3-Support cover,

[0039] 41-Disc cover, 411-Feed pipe, 412-Screw, 413-Nut

[0040] 42-Disc body, 421-Central groove, 422-Radial groove, 423-Discharge port, 424-Nozzle, 425-First sealing groove, 426-First sealing ring, 427-Through hole

[0041] 51-Drive motor, 52-Driving gear, 53-Driven gear

[0042] 6-Transfer pipe, 61-Sleeve, 611-Second sealing groove, 612-Second sealing ring,

[0043] 7-Transfer pump,

[0044] 8-Storage bin,

[0045] 9-Belt conveyor. Detailed Implementation

[0046] To better understand this utility model, it will be further described below with reference to the accompanying drawings. It is worth noting that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] Example:

[0048] See Figure 9 and Figure 10 A mineral grinding mill includes a grinding mill body 1, and a feed hopper 2 is welded and fixed to the lower part of the side wall of the grinding mill body 1. The inner cavity of the feed hopper 2 is connected to the inner cavity of the grinding mill body 1.

[0049] See Figure 9 and Figure 10 A support cover 3 is provided above the feed hopper 2, and the support cover 3 is welded and fixed to the side wall of the grinding mill body 1.

[0050] See Figure 9 The inside of the support cover 3 is equipped with a spray rack.

[0051] See Figure 4 , Figure 5 , Figure 7 and Figure 8 The spray frame includes a cover 41 and a body 42.

[0052] See Figure 8 and Figure 11 A feed pipe 411 is welded and fixed to the top surface of the disc cover 41. The feed pipe 411 extends upward through a rotating hole opened on the support cover 3, and the feed pipe 411 is rotatably engaged with the rotating hole of the support cover 3.

[0053] A drive mechanism is installed on the top surface of the support cover 3, which is used to drive the feed pipe 411 to rotate.

[0054] See Figure 11 The drive mechanism includes a drive motor 51, a drive gear 52, and a driven gear 53. The drive motor 51 is fixedly mounted on the support cover 3. The drive gear 52 is fixedly mounted on the output end of the drive motor 51. The driven gear 53 is fixedly mounted on the outer wall of the feed pipe 411. The drive gear 52 meshes with the driven gear 53.

[0055] When the drive motor 51 starts, the output end of the drive motor 51 drives the drive gear 52 to rotate, the drive gear 52 drives the driven gear 53 to rotate, the driven gear 53 drives the feed pipe 411 to rotate, and the feed pipe 411 rotates relative to the support cover 3.

[0056] See Figure 1 The disc body 42 has a central groove 421 at its top center, which communicates with the feed pipe 411. Four radial grooves 422 are located around the central groove 421, and multiple discharge ports 423 are located at the bottom of each groove. A nozzle 424 is installed at each discharge port 423; the discharge port 423 can be welded to the nozzle 424 or threadedly connected to it. The top surface of the disc body 42 has a first sealing groove 425 surrounding the central groove 421 and the radial grooves 422. A first sealing ring 426 is placed within the first sealing groove 425. (See the image for the first sealing ring 426.) Figure 3 .

[0057] See Figure 1 and Figure 2 The periphery of the disk body 42 is provided with through holes 427, see [reference]. Figure 6 A screw 412 is welded and fixed around the bottom surface of the disc cover 41. The screw 412 is used to pass through the through hole 427. A nut 413 is threaded onto the screw 412. The periphery of the disc body 42 is sandwiched between the nut 413 and the periphery of the bottom surface of the disc cover 41.

[0058] When assembling the spray frame's disc body 42 and disc cover 41, firstly, place the first sealing ring 426 in the first sealing groove 425 on the top surface of the disc body 42; then, cover the disc cover 41 on the top surface of the disc body 42, and make sure that the screws 412 around the bottom surface of the disc cover 41 pass through the through holes 427 around the disc body 42; finally, screw the nut 413 onto the screw 412 so that the periphery of the disc body 42 is sandwiched between the nut 413 and the periphery of the bottom surface of the disc cover 41, thus completing the assembly of the disc body 42 and disc cover 41.

[0059] When disassembling the spray frame's disc body 42 and disc cover 41, first, unscrew the nut 413 from the screw 412; then, separate the disc body 42 and disc cover 41. For the disassembled disc body 42, the central groove 421 and radial groove 422 can be cleaned to prevent dirt accumulation and facilitate cleaning and maintenance.

[0060] See Figure 4 and Figure 5 as well as Figure 7 The mineral grinding mill of this embodiment also includes a transfer pipe 6, a transfer pump 7, and a storage tank 8. The storage tank 8 is used to store a regulator containing metallurgical wastewater. The transfer pump 7 is fixedly installed on the storage tank 8, with its inlet end connected to the interior of the storage tank 8 and its outlet end connected to the transfer pipe 6. The transfer pipe 6 is made of stainless steel or rigid plastic to maintain its height.

[0061] See Figure 7 and Figure 8 A sleeve 61 is welded and fixed to the outer wall of the transmission pipe 6 at the end away from the transmission pump 7. A rotating cavity is provided between the inner wall of the sleeve 61 and the outer wall of the transmission pipe 6. The upper end of the feed pipe 411 is inserted into the rotating cavity, and the feed pipe 411 rotates with the rotating cavity.

[0062] See Figure 8 To improve sealing, annular second sealing grooves 611 are provided on the top wall of the rotating cavity and the top surface of the feed pipe 411. The two second sealing grooves 611 are combined to form a sealing cavity, and a second sealing ring 612 is placed inside the sealing cavity.

[0063] When grinding lithium slag using the mineral grinding mill of this embodiment:

[0064] (1) See Figure 12 The end of the belt conveyor 9 used for transporting lithium slag is inserted between the feed hopper 2 and the support cover 3.

[0065] (2) Start the belt conveyor 9, the transmission pump 7, the drive mechanism and the grinding mill body 1.

[0066] The belt conveyor 9 transports lithium slag into the feed hopper 2.

[0067] The transfer pump 7 sequentially sprays the regulator stored in the storage tank 8 through the transfer pipe 6, the feed pipe 411, the central groove 421, the radial long groove 422, and the discharge port 423 from the nozzle 424. The regulator sprayed from the nozzle 424 is sprayed onto the lithium slag at the end of the belt conveyor 9 and onto the lithium slag falling into the feed hopper 2.

[0068] The drive mechanism drives the feed pipe 411 to rotate, and the feed pipe 411 rotates relative to the transmission pipe 6. The feed pipe 411 drives the spray frame to rotate, and the spray frame drives the nozzle 424 to rotate, so that the regulator is sprayed in a rotating manner, which can expand the spray range of the regulator and improve the spraying efficiency.

[0069] The lithium slag, after being sprayed with a modifier, enters the grinding mill body 1 for grinding to obtain powder material. Because of the added modifier, this lithium slag powder can improve the strength and impermeability of concrete during its preparation.

[0070] Through the above working process, it can be seen that the mineral grinding mill of this embodiment has the following effects:

[0071] In this embodiment, the regulator inside the storage tank 8 is sequentially transferred into the transfer pipe 6, the feed pipe 411, and the spray frame via the transfer pump 7, and finally sprayed out from the nozzle 424. The drive mechanism can drive the feed pipe 411 to rotate, which in turn drives the spray frame to rotate. The spray frame can then drive the nozzle 424 to rotate together, causing the regulator to be sprayed onto the lithium slag in the feed hopper 2. This achieves the addition of the regulator and improves the flexibility of use.

[0072] Inside the grinding mill body 1, there is an upward airflow that blows powdered material. By adding a regulator at the feed hopper 2, the regulator sprayed from the nozzle 424 can be prevented from being directly blown by this airflow, preventing the regulator droplets from being blown away by the airflow and allowing the regulator to fully contact the lithium slag.

[0073] Because the spray frame is located inside the support cover 3, and the support cover 3 is located above the feed hopper 2, when the lithium slag enters the feed hopper 2, the fine particles in the lithium slag can be blocked by the support cover 3 when they are raised. The blocked fine particles can fall into the feed hopper 2, which can reduce waste.

[0074] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A mineral grinding mill, comprising a grinding mill body, wherein a feed hopper is provided on the lower part of the side wall of the grinding mill body, characterized in that, A support cover is provided above the feed hopper. The support cover is connected to the side wall of the grinding mill body. A spray frame is provided inside the support cover. A feed pipe is provided on the top surface of the spray frame. The feed pipe passes through the support cover upward and is rotatably connected to the support cover. Multiple nozzles are provided on the bottom surface of the spray frame. A drive mechanism is provided on the top surface of the support cover. The drive mechanism is used to drive the feed pipe to rotate. A transmission pipe is rotatably connected to the feed pipe. The end of the transmission pipe away from the feed pipe is connected to the storage tank through a transmission pump.

2. A mineral grinding mill according to claim 1, characterized in that, The spray frame includes a cover and a body. The cover is connected to the top of the body. The top surface of the cover is provided with the feed pipe. The center of the top surface of the body is provided with a central groove, which is connected to the feed pipe. Multiple radial grooves are provided around the central groove. The bottom of the radial grooves is provided with an outlet, which is connected to the spray head.

3. A mineral grinding mill according to claim 2, characterized in that, The top surface of the disc is provided with a first sealing groove, which surrounds the central groove and the radial long groove, and a first sealing ring is provided inside the first sealing groove.

4. A mineral grinding mill according to claim 2, characterized in that, The disk body has a through hole around its periphery, and the bottom periphery of the disk cover has a screw rod that passes through the through hole. A nut is provided on the screw rod, and the periphery of the disk body is sandwiched between the nut and the bottom periphery of the disk cover.

5. A mineral grinding mill according to claim 1, characterized in that, The driving mechanism includes a drive motor, a driving gear, and a driven gear. The drive motor is mounted on the support cover, and the output end of the drive motor is provided with a driving gear. The driven gear is located on the outer wall of the feed pipe, and the driving gear and the driven gear cooperate with each other.

6. A mineral grinding mill according to claim 1, characterized in that, The transmission pipe has a sleeve on the outer side wall at the end away from the transmission pump. A rotating cavity is provided between the inner side wall of the sleeve and the outer side wall of the transmission pipe. The feed pipe is inserted into the rotating cavity and rotates with the rotating cavity.

7. A mineral grinding mill according to claim 6, characterized in that, The top wall of the rotating cavity and the top surface of the feed pipe are both provided with a second sealing groove. The two second sealing grooves are joined together to form a sealing cavity, and a second sealing ring is provided inside the sealing cavity.

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