Ball mill feeding structure capable of preventing slurry from flowing back
By introducing an anti-backflow mechanism into the ball mill feed structure and utilizing components such as check valves and regulating pipes, the problem of slurry backflow was solved, achieving unidirectional flow of slurry and stable control of system pressure, thereby improving the operational stability and service life of the equipment.
Patent Information
- Application Number
- CN202520176392.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-27
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-27
AI Technical Summary
The existing ball mill feeding structure lacks an effective backflow prevention mechanism, which makes the slurry prone to backflow when the equipment starts up or stops or when the pressure fluctuates, damaging the equipment and affecting the system's stability and lifespan.
An anti-backflow mechanism is adopted, including components such as a one-way valve, regulating pipe and flow restrictor, to ensure unidirectional flow of slurry, and to regulate system pressure through overflow chamber shell and pressure relief hole to prevent slurry backflow and leakage.
It effectively prevents slurry backflow, protects upstream equipment, ensures stable system operation, extends equipment life, and adapts to flow rate adjustments for different production needs, thereby improving system adaptability and operability.
Smart Images
Figure CN223800613U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of ball mill equipment, and particularly relates to a ball mill feeding structure capable of preventing slurry backflow. BACKGROUND
[0002] In the conventional feeding structure of the ball mill, there are some problems difficult to overcome. Generally, when the ball mill grinds raw materials, the raw materials need to be delivered to the inside of the ball mill in the form of slurry. However, in this process, due to the change of the pressure in the system, the inertia when the equipment starts and stops, and the complexity of the process, the phenomenon of slurry backflow often occurs. The backflow of the slurry will cause many adverse effects on the whole production system.
[0003] For the related technologies in the above, the inventor finds that the existing device only relies on a simple pipeline design and has no special backflow prevention mechanism, which makes the slurry easily backflow in the process of equipment operation once the pressure fluctuates, the equipment starts and stops or other abnormal conditions occur. When the ball mill stops running, due to the lack of an effective one-way flow control device, the pressure difference between the upstream and downstream causes the slurry to flow backward and impact the upstream equipment. This backflow will damage the raw material bin and the conveying equipment, and will affect the normal operation of the equipment at the next start, cause the system to be unstable, and reduce the overall performance and service life of the equipment. CONTENT OF THE INVENTION
[0004] In view of the defects of the prior art and in order to solve the problems mentioned in the background, the present application provides a ball mill feeding structure capable of preventing slurry backflow.
[0005] To achieve the above object, the utility model provides the following technical scheme: A kind of ball mill feed structure for preventing slurry backflow, including first support, the top of the first support is provided with ball mill body, the top of the ball mill body is provided with raw material bin, one side of the raw material bin is provided with slurry circulation component, the bottom of the slurry circulation component is provided with anti-backflow mechanism, and the slurry circulation component is arranged at the top of second support;Anti-backflow mechanism, the anti-backflow mechanism includes first adapter pipe, adjusting pipe, liquid inlet hole, flow limiting plate, sealing plate, main liquid inlet pipe, overflow cavity sealing side plate and barrier ring, one side of the slurry circulation component is provided with the first adapter pipe, adjusting pipe is movably sleeved on one side of the first adapter pipe, liquid inlet hole is formed in one side of the adjusting pipe, flow limiting plate is movably connected on one side of the adjusting pipe, sealing plate is fixedly connected on one side of the flow limiting plate, main liquid inlet pipe is fixedly sleeved on one side of the sealing plate, overflow cavity sealing side plate is fixedly sleeved on one side of the main liquid inlet pipe, and barrier ring is fixedly connected on one side of the overflow cavity sealing side plate. Overflow cavity sealing side plate cooperates with other components, guarantees the sealing property of overflow cavity, prevents slurry from leaking from side. Barrier ring plays barrier effect, and different regions of slurry or equipment components can be separated, to avoid mutual interference.
[0006] Optionally, the anti-backflow mechanism further includes a ball mill sealing pipe, an overflow cavity shell, a pressure relief hole, a one-way valve, and a flow guide pipe. The ball mill sealing pipe is fixedly sleeved on one side of the barrier ring. The ball mill sealing pipe internally and fixedly has the overflow cavity shell. The overflow cavity shell has the pressure relief hole penetratingly formed on one side. The overflow cavity shell internally has the one-way valve, which is communicated with the pressure relief hole. The bottom of the overflow cavity shell is communicated with the flow guide pipe. The barrier ring plays a barrier effect, and different regions of slurry or equipment components can be separated, to avoid mutual interference. The one-way valve ensures the one-way flow of slurry, prevents slurry backflow, and ensures the stable flow direction of slurry in the system.
[0007] Optionally, the slurry circulation component includes a first liquid inlet pipe, a booster pump, a booster bin, a second liquid inlet pipe, a waste slurry collection bin, a first liquid outlet pipe, an elevator, and a second liquid outlet pipe. The first liquid inlet pipe is fixedly installed on one side of the raw material bin. The other end of the first liquid inlet pipe is communicated with the booster pump. The bottom of the booster pump is communicated with the booster bin. The bottom of the booster bin is communicated with the first adapter pipe through the second liquid inlet pipe. The waste slurry collection bin is communicated with the flow guide pipe. One side of the waste slurry collection bin is communicated with the elevator through the first liquid outlet pipe. The elevator is communicated with the booster bin through the second liquid outlet pipe.
[0008] Optionally, the slurry in the raw material bin sequentially passes through the first liquid inlet pipe, the booster pump, the booster bin, and the second liquid inlet pipe to enter the inside of the slurry circulation component. The slurry overflowing from the inside of the ball mill body sequentially passes through the flow guide pipe, the waste slurry collection bin, the first liquid outlet pipe, the elevator, and the second liquid outlet pipe to enter the inside of the booster bin.
[0009] Optionally, the ball mill sealing pipe is fixedly installed with the overflow cavity sealing side plate through bolts, and the bottom of the ball mill sealing pipe is provided with a hole, and the hole is fixedly sleeved with the flow guide pipe.
[0010] Optionally, a sealing ring is fixedly sleeved at the connection between the overflow cavity shell and the blocking ring, and the ball mill sealing pipe is fixedly sleeved on one side of the feed inlet of the ball mill body.
[0011] Optionally, the adjusting pipe is movably installed between the first adapter pipe and the sealing plate, one side of the adjusting pipe and the flow limiting plate is provided with a liquid inlet hole, and the outer wall of the adjusting pipe is fixedly connected with a handle.
[0012] To sum up, the present application has the following beneficial technical effects:
[0013] 1. The one-way valve in the backflow prevention mechanism can effectively ensure the one-way flow of the slurry. When the slurry flows in the normal process route, the slurry can smoothly pass through the related pipeline and enter the subsequent processing process, but when there is a backflow trend of the slurry due to reverse pressure or other factors, the one-way valve will automatically close, avoiding the backflow of the slurry to the upstream system, thereby preventing adverse effects on the upstream equipment and process, preventing damage to the components in the raw material bin or slurry circulating assembly caused by the backflow of the slurry, ensuring stable operation of the entire system, and prolonging the service life of the equipment.
[0014] 2. The adjusting pipe and the flow limiting plate provide a flexible flow adjusting means for the operator. The operator can adjust the position of the flow limiting plate in the adjusting pipe according to the actual needs of production, change the effective flow area of the liquid inlet hole, and control the slurry flow entering the system. This makes the system can adapt to the flow requirements of different raw material characteristics, different production stages or different product requirements, and enhances the adaptability and operability of the system. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is a schematic diagram of the overall structure of the device in the embodiment of the present application;
[0016] Figure 2 is a schematic diagram of the local structure of the device in the embodiment of the present application;
[0017] Figure 3 is a schematic diagram of the backflow prevention mechanism in the embodiment of the present application;
[0018] Figure 4 is a schematic diagram of the local structure of the backflow prevention mechanism in the embodiment of the present application;
[0019] Figure 5 is a schematic diagram of the local structure installation of the backflow prevention mechanism in the embodiment of the present application;
[0020] 1, the first support; 2, the ball mill body; 3, the raw material bin; 4, the slurry circulating assembly; 401, the first liquid inlet pipe; 402, the booster pump; 403, the booster bin; 404, the second liquid inlet pipe; 405, the waste slurry collection bin; 406, the first liquid outlet pipe; 407, the elevator; 408, the second liquid outlet pipe; 5, the backflow prevention mechanism; 501, the first adapter pipe; 502, the adjusting pipe; 503, the liquid inlet hole; 504, the flow limiting plate; 505, the sealing plate; 506, the main liquid inlet pipe; 507, the overflow cavity sealing side plate; 508, the blocking ring; 509, the ball mill sealing pipe; 510, the overflow cavity shell; 511, the pressure relief hole; 512, the one-way valve; 513, the flow guide pipe; 6, the second support. DETAILED DESCRIPTION
[0021] The application will be further described below in conjunction with the accompanying drawings. Figures 1-5 The application will be further described below in conjunction with the accompanying drawings.
[0022] The application discloses a ball mill feeding structure for preventing slurry backflow.
[0023] Please refer to Figure 1 The application discloses a ball mill feeding structure for preventing slurry backflow, which comprises a first support 1, wherein the top of the first support 1 is provided with a ball mill body 2, the top of the ball mill body 2 is provided with a raw material bin 3, one side of the raw material bin 3 is provided with a slurry circulating assembly 4, the bottom of the slurry circulating assembly 4 is provided with a backflow prevention mechanism 5, and the slurry circulating assembly 4 is arranged at the top of a second support 6.
[0024] Please refer to Figures 2 to 5 The backflow prevention mechanism 5 comprises a first adapter pipe 501, an adjusting pipe 502, a liquid inlet hole 503, a flow limiting plate 504, a sealing plate 505, a main liquid inlet pipe 506, an overflow cavity sealing side plate 507 and a blocking ring 508, the first adapter pipe 501 is arranged at one side of the slurry circulating assembly 4, the first adapter pipe 501 movably sleeves the adjusting pipe 502 at one side, the adjusting pipe 502 is provided with the liquid inlet hole 503 at one side, the adjusting pipe 502 movably connects the flow limiting plate 504 at one side, the flow limiting plate 504 is fixedly connected with the sealing plate 505 at one side, the sealing plate 505 movably sleeves the main liquid inlet pipe 506 at one side, the main liquid inlet pipe 506 movably sleeves the overflow cavity sealing side plate 507 at one side, and the overflow cavity sealing side plate 507 is fixedly connected with the blocking ring 508 at one side.
[0025] Optionally, the backflow prevention mechanism 5 further comprises a ball mill sealing pipe 509, an overflow cavity shell 510, a pressure relief hole 511, a one-way valve 512 and a flow guide pipe 513, the ball mill sealing pipe 509 is fixedly sleeved on one side of the blocking ring 508, the ball mill sealing pipe 509 is internally and fixedly installed with the overflow cavity shell 510, the overflow cavity shell 510 is penetrated and provided with the pressure relief hole 511 on one side, the overflow cavity shell 510 is internally provided with the one-way valve 512, and the one-way valve 512 is in communication with the pressure relief hole 511, and the overflow cavity shell 510 is communicated with the flow guide pipe 513 at the bottom.
[0026] Optionally, the slurry circulating assembly 4 comprises a first liquid inlet pipe 401, a booster pump 402, a booster bin 403, a second liquid inlet pipe 404, a waste slurry collecting bin 405, a first liquid outlet pipe 406, an elevator 407 and a second liquid outlet pipe 408, the first liquid inlet pipe 401 is fixedly installed on one side of the raw material bin 3, the other end of the first liquid inlet pipe 401 is in communication with the booster pump 402, the bottom of the booster pump 402 is communicated with the booster bin 403, the bottom of the booster bin 403 is communicated with the first adapter pipe 501 through the second liquid inlet pipe 404, the waste slurry collecting bin 405 is in communication with the flow guide pipe 513, one side of the waste slurry collecting bin 405 is communicated with the elevator 407 through the first liquid outlet pipe 406, and the elevator 407 is communicated with the booster bin 403 through the second liquid outlet pipe 408.
[0027] Optionally, the slurry in the raw material bin 3 enters the inside of the slurry circulating assembly 4 in sequence through the first liquid inlet pipe 401, the booster pump 402, the booster bin 403 and the second liquid inlet pipe 404, and the slurry overflowing from the inside of the ball mill body 2 enters the inside of the booster bin 403 in sequence through the flow guide pipe 513, the waste slurry collecting bin 405, the first liquid outlet pipe 406, the elevator 407 and the second liquid outlet pipe 408.
[0028] Optionally, the ball mill sealing pipe 509 is fixedly installed with the overflow cavity sealing side plate 507 through bolts, and the bottom of the ball mill sealing pipe 509 is provided with a hole, and the hole is fixedly sleeved with the flow guide pipe 513.
[0029] Optionally, a sealing ring is fixedly sleeved at the connection between the overflow cavity shell 510 and the blocking ring 508, and the ball mill sealing pipe 509 is fixedly sleeved on one side of the feed inlet of the ball mill body 2.
[0030] Optionally, the adjusting pipe 502 is movably installed between the first adapter pipe 501 and the sealing plate 505, the adjusting pipe 502 and one side of the flow limiting plate 504 are both penetrated and provided with a liquid inlet hole 503, and the outer wall of the adjusting pipe 502 is fixedly connected with a handle.
[0031] It needs to be further explained that:
[0032] Prevent backflow and control flow direction: The primary function of the anti-backflow mechanism 5 is to prevent backflow of the slurry. Among them, the check valve 512 plays a key role, which allows the slurry to pass smoothly in the specified flow direction and automatically closes when there is a tendency for backflow, ensuring that the slurry can only enter the ball mill body 2 or subsequent processes in the predetermined path, and will not flow in reverse. When the ball mill is running, due to pressure fluctuations or shutdown, etc., the slurry may backflow, and the check valve 512 can prevent this from happening, ensuring the normal operation of upstream equipment such as the raw material bin 3 and the slurry circulation assembly 4. At the same time, the flow guide pipe 513 can reasonably guide the flow direction of the slurry, and the slurry flowing out of the overflow chamber shell 510 is introduced into the waste slurry collection bin 405, realizing orderly control of the flow direction of the slurry.
[0033] Adjust and stabilize system pressure: The overflow chamber shell 510 and pressure relief hole 511 in the mechanism can adjust and stabilize the pressure in the system. When the ball mill is working, different pressure changes will occur inside the system, and excessive pressure will cause damage to the equipment. When the pressure exceeds the set value, the excess pressure will be released through the pressure relief hole 511, avoiding the damage or failure of the equipment caused by excessive pressure in the system. This pressure adjustment mechanism ensures that the ball mill feed structure can operate stably within a safe pressure range, reducing the risk of equipment downtime and damage caused by sudden pressure changes, and prolonging the service life of the equipment.
[0034] Adjust flow and ensure sealing: The adjustment pipe 502 and the flow limiting plate 504 cooperate to adjust the flow of the slurry according to production needs. The operator can control the effective flow area of the inlet hole 503 by adjusting the position of the flow limiting plate 504 in the adjustment pipe 502, thereby adjusting the flow of the slurry to meet the production requirements under different working conditions. In addition, components such as the sealing plate 505, the ball mill sealing pipe 509, and the overflow chamber sealing side plate 507 ensure the sealing of the system to prevent slurry leakage. This not only avoids waste of slurry and pollution to the environment, but also ensures the stability of the pressure in the system, enabling the entire feed structure to operate efficiently and avoiding performance degradation and reduced production efficiency caused by leakage.
[0035] The working principle of the above embodiment is as follows:
[0036] First, the raw material bin 3 stores the raw materials to be processed, and the raw materials exist in the form of slurry. During operation, the slurry in the raw material bin 3 enters the booster pump 402 through the first liquid inlet pipe 401. The booster pump 402 increases the pressure of the slurry, and then delivers the pressurized slurry to the booster bin 403. The booster bin 403 serves as an intermediate buffer area to store the pressurized slurry, maintaining a certain pressure and flow rate for stable subsequent processes.
[0037] Secondly, the slurry in the pressurized bin 403 enters the first adapter pipe 501 of the anti-backflow mechanism 5 through the second liquid inlet pipe 404. In the anti-backflow mechanism 5, the slurry will pass through the adjusting pipe 502, the main liquid inlet pipe 506 and other components in sequence. Among them, the adjusting pipe 502 can adjust the flow of the slurry by adjusting the position of the flow limiting plate 504 to change the effective flow area of the liquid inlet hole 503, so as to meet different production needs. At the same time, the sealing plate 505, the overflow cavity sealing side plate 507 and other components ensure the sealing of the slurry to prevent leakage.
[0038] Finally, when the slurry flows in the system, the one-way valve 512 ensures that the slurry can only flow in one direction to avoid backflow. If the pressure in the system is too high, the pressure relief hole 511 of the overflow cavity shell 510 will play a role in pressure relief to prevent the system from being damaged due to excessive pressure. And the slurry overflowing from the inside of the ball mill body 2 will flow into the waste slurry collection bin 405 through the flow guide pipe 513, enter the elevator 407 through the first liquid outlet pipe 406, and then be lifted and sent back to the pressurized bin 403 by the elevator 407 through the second liquid outlet pipe 408, realizing the recycling of waste slurry and making the slurry form a complete circulation loop in the system.
[0039] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.
Claims
1. A ball mill feed structure for preventing backflow of slurry, comprising a first support (1), characterized in that: The top of the first support (1) is provided with a ball mill body (2), the top of the ball mill body (2) is provided with a raw material bin (3), one side of the raw material bin (3) is provided with a slurry circulating assembly (4), the bottom of the slurry circulating assembly (4) is provided with an anti-backflow mechanism (5), and the slurry circulating assembly (4) is arranged at the top of the second support (6); the anti-backflow mechanism (5) comprises a first adapter pipe (501), an adjusting pipe (502), a liquid inlet hole (503), a flow limiting plate (504), a sealing plate (505), a main liquid inlet pipe (506), an overflow cavity sealing side plate (507) and a blocking ring (508), one side of the first adapter pipe (501) is provided with the adjusting pipe (502), one side of the first adapter pipe (501) is movably sleeved with the adjusting pipe (502), one side of the adjusting pipe (502) is provided with the liquid inlet hole (503), one side of the adjusting pipe (502) is movably connected with the flow limiting plate (504), one side of the flow limiting plate (504) is fixedly connected with the sealing plate (505), one side of the sealing plate (505) is fixedly sleeved with the main liquid inlet pipe (506), one side of the main liquid inlet pipe (506) is fixedly sleeved with the overflow cavity sealing side plate (507), and one side of the overflow cavity sealing side plate (507) is fixedly connected with the blocking ring (508).
2. A feed structure for a ball mill to prevent backflow of slurry according to claim 1, characterized in that: The anti-backflow mechanism (5) further comprises a ball mill sealing pipe (509), an overflow cavity shell (510), a pressure relief hole (511), a one-way valve (512) and a flow guide pipe (513), the ball mill sealing pipe (509) is fixedly sleeved on one side of the blocking ring (508), the ball mill sealing pipe (509) is fixedly installed with the overflow cavity shell (510) in the inside, the overflow cavity shell (510) is provided with the pressure relief hole (511) penetrating through one side, the overflow cavity shell (510) is provided with the one-way valve (512) in the inside, the one-way valve (512) is communicated with the pressure relief hole (511), and the bottom of the overflow cavity shell (510) is communicated with the flow guide pipe (513).
3. A feed structure for a ball mill to prevent backflow of slurry according to claim 1, characterized in that: The slurry circulating assembly (4) comprises a first liquid inlet pipe (401), a booster pump (402), a booster bin (403), a second liquid inlet pipe (404), a waste slurry collecting bin (405), a first liquid outlet pipe (406), an elevator (407) and a second liquid outlet pipe (408), the first liquid inlet pipe (401) is fixedly installed on one side of the raw material bin (3), the other end of the first liquid inlet pipe (401) is communicated with the booster pump (402), the bottom of the booster pump (402) is communicated with the booster bin (403), the bottom of the booster bin (403) is communicated with the first adapter pipe (501) through the second liquid inlet pipe (404), the waste slurry collecting bin (405) is communicated with the flow guide pipe (513), one side of the waste slurry collecting bin (405) is communicated with the elevator (407) through the first liquid outlet pipe (406), and the elevator (407) is communicated with the booster bin (403) through the second liquid outlet pipe (408).
4. A feed structure for a ball mill to prevent backflow of slurry according to claim 1, characterized in that: The slurry inside the raw material bin (3) enters the inside of the slurry circulating assembly (4) through the first liquid inlet pipe (401), the booster pump (402), the booster bin (403) and the second liquid inlet pipe (404) in sequence, and the overflowed slurry inside the ball mill body (2) enters the inside of the booster bin (403) through the flow guide pipe (513), the waste slurry collecting bin (405), the first liquid outlet pipe (406), the elevator (407) and the second liquid outlet pipe (408) in sequence.
5. A feed structure for a ball mill to prevent backflow of slurry according to claim 2, characterized in that: The ball mill sealing pipe (509) is fixedly installed with the overflow cavity sealing side plate (507) through bolts, the bottom of the ball mill sealing pipe (509) is provided with a hole, and the hole is fixedly sleeved with the flow guide pipe (513).
6. A feed structure for a ball mill to prevent backflow of slurry according to claim 2, characterized in that: The overflow cavity shell (510) is fixedly sleeved with a sealing ring at the connection with the blocking ring (508), and the ball mill sealing pipe (509) is fixedly sleeved on one side of the feed inlet of the ball mill body (2).
7. A feed structure for a ball mill to prevent backflow of slurry according to claim 1, characterized in that: The adjusting pipe (502) is movably installed between the first adapter pipe (501) and the sealing plate (505), the adjusting pipe (502) and one side of the flow limiting plate (504) are both provided with a liquid inlet hole (503), and the outer wall of the adjusting pipe (502) is fixedly connected with a handle.