Efficient and energy-saving continuous ball mill

Abstract

The utility model discloses an efficient energy-saving continuous ball mill which comprises a frame body, a grinding cylinder body, a feeding hole, a discharging hole, a slurry inlet assembly, a slurry outlet exhaust assembly and a driving assembly, the grinding cylinder body is rotationally arranged on the frame body, a grinding medium is arranged in the grinding cylinder body, the feeding hole and the discharging hole are formed in the two sides of the grinding cylinder body respectively, and the slurry inlet assembly and the slurry outlet exhaust assembly are arranged on the frame body. A slurry inlet assembly is arranged in the feeding hole and communicates with the interior of the grinding cylinder, a slurry outlet exhaust assembly is arranged in the discharging hole and communicates with the top space of the grinding cylinder, and a driving assembly is further arranged on the frame; through the slurry discharging and exhausting assembly, exhausting can be carried out while slurry discharging is carried out, and the gas pressure in the grinding cylinder is synchronously reduced, so that the liquid level pressure of internal slurry is always in a stable state, slurry discharging and slurry feeding are conveniently carried out at the same time, continuous grinding is achieved, and the liquid level in the grinding cylinder can be higher than a center slurry discharging pipe; and the space utilization rate of the grinding cylinder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball mills, in particular to a high-efficiency and energy-saving continuous ball mill. Background Art

[0002] Ball mills are widely used in raw material workshops in the ceramic, glass, chemical and other industries. Their principle is to crush and mix materials by utilizing the impact of grinding media and the grinding action between grinding media during the rotation process. They can be used to grind and mix ceramic raw materials of various hardnesses in the ceramic industry, and can also be used for fine grinding and mixing of materials in the construction and chemical industries. The ball mills in the ceramic industry are divided into intermittent ball mills and continuous ball mills. Intermittent ball mills have disadvantages such as long grinding cycle, discontinuous feeding and discharging, low output, and large space occupied by the whole machine.

[0003] The existing ball mills in the ceramic industry generally use continuous ball mills for grinding. Continuous ball mills can continuously feed and discharge materials, thereby improving work efficiency; however, the slurry liquid level in the existing continuous ball mill is generally located in the lower half. When the slurry liquid level is higher than the central discharge pipe, a large amount of gas generated by the heat of ball milling cannot be discharged and will occupy a large amount of space in the ball mill. When the gas pressure is greater than the slurry liquid level pressure in the external slurry inlet tank, the slurry will not be able to enter the cylinder of the ball mill for grinding, causing the grinding slurry level in the cylinder to decrease, resulting in low space utilization in the grinding cylinder.

[0004] In view of this, the existing technology still needs to be improved and developed. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a high-efficiency and energy-saving continuous ball mill, aiming to solve the problem of low utilization of the grinding space in the cylinder of the existing continuous ball mill.

[0006] The technical solutions adopted by the present invention to solve the technical problems are as follows:

[0007] A high-efficiency and energy-saving continuous ball mill comprises a frame and a grinding cylinder rotatably arranged on the frame, wherein the grinding cylinder contains a grinding medium, and further comprises:

[0008] The feed hole and the discharge hole are respectively arranged on both sides of the grinding cylinder;

[0009] a slurry feeding assembly, disposed inside the feed hole and communicating with the interior of the grinding cylinder to inject slurry into the grinding cylinder;

[0010] A slurry discharge and exhaust assembly is provided inside the discharge hole and communicates with the top space of the grinding cylinder to discharge the slurry and gas inside the grinding cylinder;

[0011] The driving assembly is arranged on the frame; the driving assembly is connected to the grinding cylinder to drive the grinding cylinder to rotate.

[0012] Furthermore, the slurry discharge and exhaust assembly includes:

[0013] A slurry discharge valve is provided inside the grinding cylinder; the slurry discharge valve is in sealing cooperation with the inner wall of the grinding cylinder;

[0014] A plurality of first fan-shaped cavities are radially arranged inside the slurry discharge valve, and an opening is provided on a side of the first fan-shaped cavity close to the feed hole;

[0015] The first gas-liquid distribution rotary joint has one end connected to the multiple first fan-shaped cavities and the other end connected to the external slurry discharge pipe, so as to close the first fan-shaped cavity located in the middle and bottom of the grinding cylinder, and connect the first fan-shaped cavity located at the top of the grinding cylinder with the slurry discharge pipe for slurry discharge and exhaust.

[0016] Furthermore, the first gas-liquid distribution rotary joint includes:

[0017] a first gas-liquid rotary distribution pipe, rotatably disposed in the discharge hole;

[0018] A plurality of first delivery pipes are radially arranged in the first gas-liquid rotary distribution pipe; the first delivery pipes correspond to the first fan-shaped cavities one by one and are in communication with each other;

[0019] a first gas-liquid static distribution pipe, disposed on one side of the first gas-liquid rotating distribution pipe;

[0020] The first baffle is arranged on a side of the first gas-liquid static distribution pipe close to the first gas-liquid rotating distribution pipe; a first through hole is provided on the top of the first baffle, and the first through hole cooperates with the first conveying pipe in the first gas-liquid rotating distribution pipe to discharge the slurry in the first fan-shaped cavity and the gas in the grinding cylinder.

[0021] Furthermore, a slot is provided at the center of the slurry discharge valve, the first gas-liquid rotary distribution pipe is arranged in the slot, and the first conveying pipe in the first gas-liquid rotary distribution pipe is connected to the first fan-shaped cavity through a connecting pipe.

[0022] Furthermore, the slurry feeding assembly includes:

[0023] A slurry supply pump is arranged on the outside of the grinding cylinder;

[0024] A slurry feeding tank is arranged outside the grinding cylinder; the slurry feeding tank is connected to the slurry supply pump through a pipeline; a liquid level meter is arranged inside the slurry feeding tank;

[0025] A slurry inlet valve is arranged inside the grinding cylinder; a plurality of second fan-shaped cavities are radially arranged inside the slurry inlet valve, and the slurry inlet valve is connected to the slurry inlet tank through a second gas-liquid distribution rotary joint to seal the second fan-shaped cavities located at the top and middle of the grinding cylinder and the slurry inlet tank, and to connect the second fan-shaped cavity located at the bottom of the grinding cylinder with the slurry inlet tank to inject slurry.

[0026] Furthermore, the second gas-liquid distribution rotary joint includes:

[0027] a second gas-liquid rotary distribution pipe, disposed in the feed hole;

[0028] A plurality of second delivery pipes are radially arranged in the second gas-liquid rotary distribution pipe; the second delivery pipes correspond to the second fan-shaped cavities one by one and are in communication with each other;

[0029] a second gas-liquid static distribution pipe, disposed on one side of the second gas-liquid rotating distribution pipe;

[0030] The second baffle is arranged on the side of the second gas-liquid static distribution pipe close to the second gas-liquid rotating distribution pipe; a second through hole is provided at the bottom of the second baffle, and the second through hole cooperates with the second conveying pipe in the second gas-liquid rotating distribution pipe to inject slurry into the bottom of the grinding cylinder.

[0031] Furthermore, the driving assembly includes:

[0032] A driving motor is arranged on the frame;

[0033] A reducer is provided on the frame; the reducer cooperates with the drive motor;

[0034] A transmission belt has one end sleeved on the output shaft of the reducer and the other end sleeved on the grinding cylinder.

[0035] Furthermore, a throttle valve is provided inside the first gas-liquid static distribution pipe.

[0036] Furthermore, an overflow pipe is provided on one side of the slurry inlet tank.

[0037] Furthermore, a maintenance hole is provided on the outer surface of the grinding cylinder, and a sealing cover is provided on the maintenance hole.

[0038] Compared with the prior art, the beneficial effects of the present invention are:

[0039] In the present invention, a grinding cylinder is rotatably arranged on the frame, and grinding media is arranged inside the grinding cylinder. Feed holes and discharge holes are respectively arranged on both sides of the grinding cylinder. A slurry inlet assembly is arranged in the feed hole, and the slurry inlet assembly is communicated with the interior of the grinding cylinder. A slurry discharge and exhaust assembly is arranged inside the discharge hole, and the slurry discharge and exhaust assembly is communicated with the top space of the grinding cylinder. A driving assembly is also provided on the frame to drive the grinding cylinder to rotate; slurry can be injected into the grinding cylinder through the slurry inlet assembly, and the grinding cylinder is driven to rotate for grinding through the driving assembly. During the grinding process, slurry is discharged and gas is discharged through the slurry discharge and exhaust assembly, and the slurry inlet assembly is opened synchronously to feed slurry for continuous grinding; through the slurry discharge and exhaust assembly, gas can be discharged while slurry is discharged, and the gas pressure in the grinding cylinder is simultaneously reduced to ensure that the liquid level pressure of the internal slurry is always in a stable state, and it is convenient to discharge and feed slurry at the same time, realize continuous grinding, and make the liquid level in the grinding cylinder higher than the central slurry outlet pipe, thereby improving the space utilization rate of the grinding cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0041] Figure 2 This is a schematic diagram of the structure of the pulp feeding component of the utility model.

[0042] Figure 3 This is a structural diagram of the second gas-liquid distribution rotary joint of the utility model.

[0043] Figure 4 This is a schematic diagram of the structure of the slurry discharge and exhaust component of the utility model.

[0044] Figure 5 This is a structural diagram of the first gas-liquid distribution rotary joint of the utility model.

[0045] Figure 6 This is a schematic diagram of the structure of the slurry feeding tank of the utility model.

[0046] The numbers in the figure are as follows: 1, frame; 2, grinding cylinder; 21, feed hole; 22, discharge hole; 23, grinding medium; 3, slurry inlet assembly; 31, slurry supply pump; 32, slurry inlet tank; 33, slurry inlet valve; 34, second fan-shaped cavity; 35, second gas-liquid distribution rotary joint; 351, second gas-liquid rotary distribution pipe; 352, second conveying pipeline; 353, second gas-liquid static distribution pipe; 354, second baffle; 355, second through hole; 36, Liquid level meter; 37. Injection port; 4. Slurry discharge and exhaust assembly; 41. Slurry discharge valve; 42. First fan-shaped cavity; 43. First gas-liquid distribution rotary joint; 431. First gas-liquid rotary distribution pipe; 432. First conveying pipeline; 433. First gas-liquid static distribution pipe; 434. First baffle; 435. First through hole; 44. Opening; 5. Drive assembly; 51. Drive motor; 52. Reducer; 53. Drive belt; 6. Throttle valve; 7. Overflow pipe. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and effect of the present invention more clear and explicit, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0049] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0050] In view of the shortcomings of the existing technology, this embodiment provides a high-efficiency and energy-saving continuous ball mill, which can be specifically referred to as follows:

[0051] As attached Figure 1 , Attachment Figure 2 and attached Figure 4 As shown, a high-efficiency and energy-saving continuous ball mill includes a frame 1, a grinding cylinder 2, a feed hole 21, a discharge hole 22, a slurry feed component 3, a slurry discharge exhaust component 4 and a driving component 5. Rotary bearings are provided on both sides of the frame 1, a grinding medium 23 is provided inside the grinding cylinder 2, and convex shafts are provided on both sides of the grinding cylinder 2. The two convex shafts are respectively rotatably provided in the rotating bearings, and the insides of the two convex shafts are respectively provided with a feed hole 21 and a discharge hole 22, and the inside of the feed hole 21 is provided with a slurry feed component 3. The slurry feed component 3 is sealed with the feed hole 21, and the slurry feed component 3 is communicated with the inside of the grinding cylinder 2. The slurry inlet assembly 3 can inject slurry into the interior of the grinding cylinder 2; a slurry outlet and exhaust assembly 4 is provided inside the discharge hole 22, and the slurry outlet and exhaust assembly 4 is sealed with the discharge hole 22, and the slurry outlet and exhaust assembly 4 is connected to the top space of the grinding cylinder 2 to discharge the slurry and gas inside the grinding cylinder 2, thereby ensuring the liquid level pressure in the grinding cylinder 2; a driving assembly 5 is also provided on the frame 1, and the driving assembly 5 is connected to the grinding cylinder 2 to drive the grinding cylinder 2 to rotate in the rotating bearing, and the grinding medium 23 in the grinding cylinder 2 grinds the injected slurry and discharges it through the slurry outlet and exhaust assembly 4;

[0052] Slurry can be injected into the grinding cylinder 2 through the slurry inlet component 3, and the grinding cylinder 2 is driven to rotate for grinding through the driving component 5. During the grinding process, slurry is discharged and gas is exhausted through the slurry discharge and exhaust component 4 to ensure that the liquid level pressure of the internal slurry is always in a stable state, and it is convenient to discharge and feed slurry at the same time to achieve continuous grinding; through the slurry discharge and exhaust component 4, the gas generated in the grinding cylinder 2 during grinding can also be discharged from the top of the grinding cylinder 2, so that the liquid level in the grinding cylinder 2 can be higher than the central slurry discharge pipe, thereby improving the space utilization rate of the grinding cylinder 2.

[0053] As attached Figure 4 and attached Figure 5As shown, the slurry discharge and exhaust assembly 4 includes a slurry discharge valve 41, a plurality of first fan-shaped cavities 42 and a first gas-liquid distribution rotary joint 43. The slurry discharge valve 41 is disc-shaped, and the outer wall of the slurry discharge valve 41 abuts against the inner wall of the grinding cylinder 2 and is sealed to prevent the slurry from flowing out of the gap between the slurry discharge valve 41 and the grinding cylinder 2. A plurality of first fan-shaped cavities 42 are provided inside the slurry discharge valve 41. The plurality of first fan-shaped cavities 42 are arranged in sequence along the circumference of the slurry discharge valve 41, and the plurality of first fan-shaped cavities 42 are coaxially arranged. An opening 44 is provided on one side of the first fan-shaped cavity 42 close to the feed hole 21, and the position of the opening 44 is close to the slurry discharge valve 41. The outer circular side wall of the grinding cylinder 2 is provided with an opening 44, and the slurry in the grinding cylinder 2 can enter the fan-shaped cavity through the opening 44 and rotate with the rotation of the grinding cylinder 2. A first gas-liquid distribution rotary joint 43 is also provided inside the grinding cylinder 2. The first gas-liquid distribution rotary joint 43 is located in the discharge hole 22, one end of which is connected with multiple first fan-shaped cavities 42, and the other end is connected with the external slurry discharge pipe. The first fan-shaped cavity 42 located in the middle and bottom of the grinding cylinder 2 can be closed by the first gas-liquid distribution rotary joint 43, and the first fan-shaped cavity 42 located at the top of the grinding cylinder 2 is connected with the slurry discharge pipe for slurry discharge and exhaust.

[0054] Specifically, the interior of the slurry discharge valve 41 is provided with a plurality of first fan-shaped cavities 42, and the plurality of first fan-shaped cavities 42 rotate with the grinding cylinder 2. In the initial state, the slurry liquid level in the grinding cylinder 2 will be higher than the central discharge hole 22, and occupy 60%-80% of the internal space of the grinding cylinder 2. At this time, the interior of the first fan-shaped cavity 42 below the slurry liquid level (the opening 44 of the first fan-shaped cavity 42 is also below the slurry liquid level) will be filled with slurry. Since the first fan-shaped cavity 42 at the bottom and the middle is sealed, the slurry cannot be discharged through the slurry discharge pipe, and the first fan-shaped cavity 42 at the top is connected to the slurry discharge pipe, and gas can be discharged. In the initial state, the first fan-shaped cavity 42 There may be no slurry in the cavity 42, and only gas is discharged; as the grinding cylinder 2 rotates, the first fan-shaped cavity 42 located in the middle will move to the top of the grinding cylinder 2. At this time, the first fan-shaped cavity 42 located at the top is connected to the slurry discharge pipe, and the slurry and the gas at the top of the grinding cylinder 2 are discharged through the slurry discharge pipe, thereby achieving the functions of exhaust and slurry discharge. It can not only ensure the liquid level pressure in the grinding cylinder 2, but also synchronize the slurry feeding and discharging and keep the liquid level unchanged, effectively improving the space utilization rate of the grinding cylinder 2, and only discharge the slurry that has been ground at the bottom of the grinding cylinder 2, thereby improving the slurry quality discharged from the grinding cylinder 2; at the same time, compared with the continuous grinder in the prior art, it is more efficient and saves energy.

[0055] In this embodiment, as shown in the attached Figure 5As shown, the first gas-liquid distribution rotary joint 43 includes a first gas-liquid rotating distribution pipe 431, a plurality of first conveying pipes 432, a first gas-liquid static distribution pipe 433 and a first baffle 434. The first gas-liquid rotating distribution pipe 431 is rotatably arranged in the discharge hole 22. One end of the first gas-liquid rotating distribution pipe 431 is connected to the slurry discharge valve 41 and rotates with the rotation of the slurry discharge valve 41. The interior of the first gas-liquid rotating distribution pipe 431 is radially provided with a plurality of first conveying pipes 432. The plurality of first conveying pipes 432 correspond to the plurality of first fan-shaped cavities 42 one by one and are interconnected, that is, the slurry in the first fan-shaped cavity 42 can be conveyed to the first conveying pipe 432; the connecting line between the first conveying pipe 432 and the corresponding first fan-shaped cavity 42 passes through the first gas-liquid rotating The axis of the distribution pipe 431, the first gas-liquid rotating distribution pipe 431 is provided with a first gas-liquid static distribution pipe 433 on the side away from the slurry discharge valve 41, the first gas-liquid static distribution pipe 433 is connected to the slurry discharge pipe and is in a fixed state, the first gas-liquid rotating distribution pipe 431 rotates relative to the first gas-liquid static distribution pipe 433, the first gas-liquid static distribution pipe 433 is provided with a first baffle 434 on the side close to the first gas-liquid rotating distribution pipe 431, the first baffle 434 closes the inlet of the first gas-liquid static distribution pipe 433, and the top of the first baffle 434 is provided with a first through hole 435, the first through hole 435 cooperates with the first conveying pipe 432 in the first gas-liquid rotating distribution pipe 431 to discharge the slurry in the first fan-shaped cavity 42 and the gas in the grinding cylinder 2.

[0056] Specifically, in the initial state, the first through hole 435 is connected to the multiple first delivery pipes 432 at the top of the first gas-liquid rotating distribution pipe 431, that is, the first gas-liquid static distribution pipe 433 is connected to the space at the top of the grinding cylinder 2 through the first delivery pipe 432, and the first baffle 434 closes the first delivery pipe 432 at the middle and bottom of the first gas-liquid rotating distribution pipe 431 to prevent the slurry below the liquid level in the grinding cylinder 2 from being discharged through the first fan-shaped cavity 42 and the first delivery pipe 432, and also to prevent the gas from being unable to be discharged. Out; by connecting the first through hole 435 with the first conveying pipe 432 at the top of the first gas-liquid rotating distribution pipe 431, the first fan-shaped cavity 42 located at the bottom and middle part of the grinding cylinder 2 can be rotated to the top under the rotation of the grinding cylinder 2, and connected with the first gas-liquid static distribution pipe 433 and the slurry outlet pipe through the first conveying pipe 432 and the first through hole 435, so as to discharge the slurry and gas synchronously to ensure that the liquid level pressure of the internal slurry is always in a stable state, so as to facilitate the simultaneous discharge and inflow of slurry and realize continuous grinding.

[0057] In this embodiment, a slot is provided in the center of the slurry discharge valve 41, one end of the first gas-liquid rotary distribution pipe 431 is arranged in the slot, and the first gas-liquid rotary distribution pipe 431 and the slurry discharge valve 41 are in a sealed state. The first conveying pipe 432 in the first gas-liquid rotary distribution pipe 431 is connected to the first fan-shaped cavity 42 through a connecting pipe; the first fan-shaped cavity 42 located at the top of the grinding cylinder 2 is located at the top of the first conveying pipe 432, so that the slurry in the first fan-shaped cavity 42 can flow more conveniently into the first conveying pipe 432, which can more efficiently speed up the slurry discharge and exhaust efficiency.

[0058] In this embodiment, the first through hole 435 is an arc-shaped hole. The first through hole 435 can be connected to the plurality of first delivery pipes 432 , which can accelerate the efficiency of slurry discharge and exhaust.

[0059] Further, as attached Figure 5 As shown, there are five first fan-shaped cavities 42, and two openings 44 can be provided on one side of the first fan-shaped cavity 42 to facilitate slurry discharge and exhaust. There are also five first conveying pipes 432, and the first fan-shaped cavities 42 correspond to the first conveying pipes 432 one by one. In the initial state, there are two first fan-shaped cavities 42 at the top of the grinding cylinder 2, and the two first conveying pipes 432 corresponding to the two first fan-shaped cavities 42 correspond to the first through holes 435 and are connected to the first gas-liquid static distribution pipe 433. As the grinding cylinder 2 rotates, the first fan-shaped cavity 42 storing the slurry is discharged. A fan-shaped cavity 42 rotates from the middle or bottom to the top, and after the first conveying pipe 432 corresponding to it is connected to the first through hole 435, the slurry in the first fan-shaped cavity 42 flows into the first conveying pipe 432 and flows into the gas-liquid static distribution pipe, while the exhaust work is performed; through the continuous rotation of the grinding cylinder 2, the first fan-shaped cavity 42 continuously cooperates with the first conveying pipe 432 and the first through hole 435 to discharge slurry and exhaust, achieving the effect of continuous slurry discharge, and at the same time, the gas generated by high temperature will also be discharged, which is convenient for the slurry inlet component 3 to inject slurry.

[0060] Further, as attached Figure 4 As shown, a throttle valve 6 is provided inside the first gas-liquid static distribution pipe 433, and the throttle valve 6 is used to control the connection and closing of the first gas-liquid static distribution pipe 433 and the slurry outlet pipe; when the slurry is just injected into the grinding cylinder 2, the throttle valve 6 is in a closed state, and the slurry is ground by starting the grinding cylinder 2. After a certain period of time, the throttle valve 6 can be opened to discharge the ground slurry and the gas generated during the grinding process.

[0061] As attached Figure 2 , Attachment Figure 3 and attached Figure 6As shown, the slurry feeding assembly 3 includes a slurry supply pump 31, a slurry feeding tank 32, a slurry feeding valve 33 and a second gas-liquid distribution rotary joint 35. The slurry supply pump 31 and the slurry feeding tank 32 are arranged outside the grinding cylinder 2. The slurry supply pump 31 is communicated with the external slurry, and the slurry supply pump 31 is communicated with the slurry feeding tank 32 through a pipeline. The slurry is injected into the slurry feeding tank 32 by starting the slurry supply pump 31, and the slurry feeding tank 32 injects slurry into the grinding cylinder 2 through the second gas-liquid distribution rotary joint 35 and the slurry feeding valve 33. At the same time, a liquid level gauge 36 is provided inside the slurry feeding tank 32. Since the slurry in the slurry feeding tank 32 is communicated with the slurry in the grinding cylinder 2, the liquid level height in the grinding cylinder 2 can be checked through the liquid level gauge 36 in the slurry feeding tank 32, thereby avoiding the liquid level in the grinding cylinder 2 being too high or too low.

[0062] In this embodiment, the liquid level meter 36 is a prior art, and the liquid level meter 36 is also used to send a signal to the PLC in the continuous ball mill, and the PLC sends a signal to the slurry supply pump 31, and the slurry supply pump 31 adjusts the slurry flow rate inside it; when the liquid level meter 36 detects that the liquid level in the grinding cylinder 2 is at a high liquid level (the high liquid level value can be set manually), it sends a signal to the PLC, and the PLC sends a signal to the slurry supply pump 31, and the slurry supply pump 31 reduces the flow rate inside it and slowly injects slurry into the grinding cylinder 2 to keep the slurry inlet and outlet flows consistent.

[0063] In this embodiment, a plurality of second fan-shaped cavities 34 are radially arranged inside the slurry inlet valve 33. The slurry inlet valve 33 has the same structure as the slurry outlet valve 41. The second gas-liquid distribution rotary joint 35 can seal the second fan-shaped cavity 34 located at the top and middle of the grinding cylinder 2 and the slurry inlet tank 32, and connect the second fan-shaped cavity 34 located at the bottom of the grinding cylinder 2 with the slurry inlet tank 32, that is, the slurry inlet tank 32 will not inject slurry through the second fan-shaped cavity 34 located at the top and middle of the grinding cylinder 2, but will inject slurry through the second fan-shaped cavity 34 located at the bottom of the grinding cylinder 2. An injection port 37 is provided on one side of the second fan-shaped cavity 34, and the injection port 37 is close to the outer circular edge of the slurry inlet valve 33, so that when injecting slurry, it is slowly injected from the bottom of the grinding cylinder 2.

[0064] By sealing the second fan-shaped cavity 34 located at the top and the middle of the grinding cylinder 2, the gas in the grinding cylinder 2 can only flow in one direction. The unidirectionally flowing gas will also flush the inner walls of the first fan-shaped cavity 42 and the first conveying pipe 432 under a certain pressure to prevent slurry precipitation; at the same time, it prevents the gas generated in the grinding cylinder 2 from entering the channel connecting the slurry feed tank 32 and the slurry feed valve 33 through the injection port 37 of the second fan-shaped cavity 34 located at the top or the middle, thereby affecting the grouting rate and stability of the slurry feed tank 32.

[0065] In this embodiment, as shown in the attached Figure 3As shown, the second gas-liquid distribution rotary joint 35 includes a second gas-liquid rotary distribution pipe 351, a plurality of second delivery pipes 352, a second gas-liquid static distribution pipe 353 and a second baffle 354. The second gas-liquid rotary distribution pipe 351 is arranged in the feed hole 21. The second gas-liquid rotary distribution pipe 351 is connected to the slurry inlet valve 33. The interior of the second gas-liquid rotary distribution pipe 351 is radially provided with a plurality of second delivery pipes 352. The plurality of second delivery pipes 352 correspond to and are connected to the plurality of second fan-shaped cavities 34 one by one. The second gas-liquid rotary distribution pipe 351 is provided with a plurality of second delivery pipes 352. A second gas-liquid static distribution pipe 353 is provided on one side of the liquid rotating distribution pipe 351, and the second gas-liquid rotating distribution pipe 351 rotates relative to the second gas-liquid static distribution pipe 353. A second baffle 354 is provided on the side of the second gas-liquid static distribution pipe 353 close to the second gas-liquid rotating distribution pipe 351, and a second through hole 355 is provided at the bottom of the second baffle 354. The second through hole 355 cooperates with the second conveying pipe 352 in the second gas-liquid rotating distribution pipe 351 to inject slurry into the bottom of the grinding cylinder 2.

[0066] Specifically, the slurry inlet tank 32 is connected to the second gas-liquid static distribution pipe 353, and slurry flows into the second gas-liquid static distribution pipe 353. The slurry in the second gas-liquid static distribution pipe 353 flows to the second through hole 355 to the second conveying pipe 352 connected to the second fan-shaped cavity 34 at the bottom of the grinding cylinder 2, and flows to the bottom of the grinding cylinder 2. As the grinding cylinder 2 rotates, multiple second conveying pipes 352 continue to be connected to the second through hole 355, and slurry is injected from the bottom of the grinding cylinder 2, thereby preventing the gas generated in the grinding cylinder 2 from entering the second gas-liquid static distribution pipe 353 through the second fan-shaped cavity 34 located at the top or middle of the grinding cylinder 2 and the corresponding second conveying pipe 352, thereby avoiding gas backflow and affecting the grouting rate and stability of the slurry inlet tank 32.

[0067] In this embodiment, a slot is provided at the center of the slurry inlet valve 33, and the second gas-liquid rotary distribution pipe 351 is provided in the slot. The second gas-liquid rotary distribution pipe 351 is connected to the second fan-shaped cavity 34 on the circumferential side through a connecting pipe.

[0068] Furthermore, the second through hole 355 at the bottom of the second baffle 354 is an arc-shaped slot, and two injection ports 37 can be provided on one side of the second fan-shaped cavity 34 to accelerate the injection speed of the slurry to match the slurry discharge speed of the slurry discharge valve 41.

[0069] Furthermore, an overflow pipe 7 is provided on one side of the slurry feed tank 32, and the overflow pipe 7 is used to overflow the slurry, thereby controlling the liquid level in the slurry feed tank 32 and the grinding cylinder 2, and avoiding the slurry liquid level inside the grinding cylinder 2 being too high, which affects the grinding and slurry discharge and exhaust.

[0070] As attached Figure 1As shown, the driving assembly 5 includes a driving motor 51, a reducer 52 and a transmission belt 53. The driving motor 51 and the reducer 52 are arranged on the frame 1, and the driving motor 51 and the reducer 52 cooperate with each other. A transmission belt 53 is provided on the output shaft of the reducer 52, and the other end of the transmission belt 53 is sleeved on the grinding cylinder 2; by starting the driving motor 51 and decelerating through the reducer 52, and then driving the grinding cylinder 2 to rotate through the transmission belt 53, the slurry inside the grinding cylinder 2 is ground.

[0071] In one embodiment of the present application, a maintenance hole is provided on the outer surface of the grinding cylinder 2, and a sealing cover is provided on the maintenance hole. The sealing cover is fixed by bolts and snaps. The maintenance hole can not only be used for manual entry into the grinding cylinder 2 for inspection and maintenance, but also for injecting grinding media 23.

[0072] Those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the embodiments disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that adhere to the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered as exemplary only; the true scope and spirit of the invention are indicated by the claims.

Claims

1. A high-efficiency and energy-saving continuous ball mill, comprising a frame and a grinding cylinder rotatably mounted on the frame, wherein the grinding cylinder contains a grinding medium, characterized in that: Also includes: The feed hole and the discharge hole are respectively arranged on both sides of the grinding cylinder; a slurry feeding assembly, disposed inside the feed hole and communicating with the interior of the grinding cylinder to inject slurry into the grinding cylinder; A slurry discharge and exhaust assembly is provided inside the discharge hole and communicates with the top space of the grinding cylinder to discharge the slurry and gas inside the grinding cylinder; A driving assembly is provided on the frame; The driving assembly is connected to the grinding cylinder to drive the grinding cylinder to rotate.

2. The high-efficiency and energy-saving continuous ball mill according to claim 1, characterized in that: The slurry discharge and exhaust assembly comprises: A slurry discharge valve is provided inside the grinding cylinder; the slurry discharge valve is in sealing cooperation with the inner wall of the grinding cylinder; A plurality of first fan-shaped cavities are radially arranged inside the slurry discharge valve, and an opening is provided on a side of the first fan-shaped cavity close to the feed hole; The first gas-liquid distribution rotary joint has one end connected to the multiple first fan-shaped cavities and the other end connected to the external slurry discharge pipe, so as to close the first fan-shaped cavity located in the middle and bottom of the grinding cylinder, and connect the first fan-shaped cavity located at the top of the grinding cylinder with the slurry discharge pipe for slurry discharge and exhaust.

3. The high-efficiency and energy-saving continuous ball mill according to claim 2, characterized in that: The first gas-liquid distribution rotary joint comprises: a first gas-liquid rotary distribution pipe, rotatably disposed in the discharge hole; A plurality of first delivery pipes are radially arranged in the first gas-liquid rotary distribution pipe; the first delivery pipes correspond to the first fan-shaped cavities one by one and are in communication with each other; a first gas-liquid static distribution pipe, disposed on one side of the first gas-liquid rotating distribution pipe; The first baffle is arranged on a side of the first gas-liquid static distribution pipe close to the first gas-liquid rotating distribution pipe; a first through hole is provided on the top of the first baffle, and the first through hole cooperates with the first conveying pipe in the first gas-liquid rotating distribution pipe to discharge the slurry in the first fan-shaped cavity and the gas in the grinding cylinder.

4. The high-efficiency and energy-saving continuous ball mill according to claim 3, characterized in that: A slot is provided at the center of the slurry discharge valve, the first gas-liquid rotary distribution pipe is arranged in the slot, and the first conveying pipeline in the first gas-liquid rotary distribution pipe is connected to the first fan-shaped cavity through a connecting pipe.

5. The high-efficiency and energy-saving continuous ball mill according to claim 1, characterized in that: The slurry feeding component includes: A slurry supply pump is arranged on the outside of the grinding cylinder; A slurry feeding tank is arranged outside the grinding cylinder; the slurry feeding tank is connected to the slurry supply pump through a pipeline; a liquid level meter is arranged inside the slurry feeding tank; A slurry inlet valve is arranged inside the grinding cylinder; a plurality of second fan-shaped cavities are radially arranged inside the slurry inlet valve, and the slurry inlet valve is connected to the slurry inlet tank through a second gas-liquid distribution rotary joint to seal the second fan-shaped cavities located at the top and middle of the grinding cylinder and the slurry inlet tank, and to connect the second fan-shaped cavity located at the bottom of the grinding cylinder with the slurry inlet tank to inject slurry.

6. The high-efficiency and energy-saving continuous ball mill according to claim 5, characterized in that: The second gas-liquid distribution rotary joint comprises: a second gas-liquid rotary distribution pipe, disposed in the feed hole; A plurality of second delivery pipes are radially arranged in the second gas-liquid rotary distribution pipe; the second delivery pipes correspond to the second fan-shaped cavities one by one and are in communication with each other; a second gas-liquid static distribution pipe, disposed on one side of the second gas-liquid rotating distribution pipe; The second baffle is arranged on the side of the second gas-liquid static distribution pipe close to the second gas-liquid rotating distribution pipe; a second through hole is provided at the bottom of the second baffle, and the second through hole cooperates with the second conveying pipe in the second gas-liquid rotating distribution pipe to inject slurry into the bottom of the grinding cylinder.

7. The high-efficiency and energy-saving continuous ball mill according to claim 5, characterized in that: The drive assembly includes: A driving motor is arranged on the frame; A reducer is provided on the frame; the reducer cooperates with the drive motor; A transmission belt has one end sleeved on the output shaft of the reducer and the other end sleeved on the grinding cylinder.

8. The high-efficiency and energy-saving continuous ball mill according to claim 3, characterized in that: A throttle valve is provided inside the first gas-liquid static distribution pipe.

9. The high-efficiency and energy-saving continuous ball mill according to claim 5, characterized in that: An overflow pipe is provided on one side of the slurry inlet tank.

10. The high-efficiency and energy-saving continuous ball mill according to claim 1, characterized in that: A maintenance hole is provided on the outer surface of the grinding cylinder, and a sealing cover is provided on the maintenance hole.

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