Automatic liquid level control mechanism for ore pulp buffer tank
By using capacity expansion tank and level gauge in the automatic control mechanism of the slurry buffer tank, the liquid level is monitored and adjusted, the problem of mismatch in the slurry buffer tank is solved, the pump evacuation and waste of water resources are avoided, and the stable Level control and water conservation.
Patent Information
- Application Number
- CN202420862947.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2024-12-24
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the mine ore dressing production process, due to the unbalance of production structure, the slurry amount of the slurry buffer tank does not match the output of the conveying pump, resulting in the slurry overflow tank or the conveying pump being evacuated. The prior art requires the use of large power and conveying volume Large transfer pumps and require the ball valve to be opened in time to replenish water, wasting water resources.
An automatic level control mechanism for the slurry buffer tank is designed, including the slurry buffer tank body, agitating assembly, capacity expansion tank, level gauge, overflow port, three-way, water replenishment pipeline and solenoid valve, through the capacity expansion tank and level gauge Monitor the liquid level, and use compensation pipelines and water replenishment pipelines to automatically adjust the liquid level, avoid pump evacuation and save water resources.
Without the need for a high-power transfer pump, the pump evacuation phenomenon is avoided and water resources is saved. Through the coordination of the expansion tank and the level gauge, the stable control of the liquid level of the slurry buffer tank is achieved, ensuring production normal operation.
Smart Images
Figure CN222232914U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mine dressing equipment, in particular to an automatic liquid level control mechanism for a slurry buffer tank. Background Art
[0002] In the process of mineral processing in mines, slurry buffer tanks are often used. The slurry produced in the previous process is buffered in the slurry buffer tank and then pumped into the next process by the transfer pump. For example, the tailings are buffered in the slurry buffer tank and then pumped into the tailings pond. Due to the imbalance of production organization, the amount of slurry entering the slurry buffer tank often does not match the output of the transfer pump, resulting in the slurry overflowing the slurry buffer tank or the transfer pump being emptied.
[0003] CN 203737182 U discloses an automatic control mechanism for the liquid level of a slurry buffer tank, which includes a slurry buffer tank with a stirring device, wherein the upper end of the slurry buffer tank is connected to a slurry input pipe through an end cover, the lower end is connected to a slurry output pipe through a slurry outlet valve, and the outer end of the slurry output pipe is connected to a slurry pump. It also includes a pressure water pipe arranged near the slurry buffer tank, the pressure water pipe is connected to a ball valve through a branch pipe; and a float connected to the ball valve through a connecting rod mechanism is arranged in the slurry buffer tank. When the liquid level in the slurry buffer tank drops to a set height, the float opens the ball valve through the connecting rod mechanism, adds water to the slurry buffer tank, and increases the liquid level, and conversely closes the ball valve. Thereby, the problem of slurry overflow and pump evacuation is solved, the real-time adjustment of the liquid level in the slurry buffer tank is realized, and the normal operation of production is ensured. However, there are still the following problems when using it: it is still necessary to use a transmission pump with high power and large conveying capacity, and in order to avoid the pump being evacuated, it is necessary to open the ball valve in time to replenish water, which wastes water resources. Utility Model Content
[0004] The purpose of the utility model is to provide a reasonable structure, reliable use of the slurry buffer tank liquid level automatic control mechanism to solve the above problems, on the one hand, without the need to use a large-power, large-capacity transmission pump to avoid the pump from being emptied, on the other hand, to save water resources.
[0005] The technical solution of the utility model is:
[0006] A slurry buffer tank liquid level automatic control mechanism, comprising a slurry buffer tank body and a stirring assembly, wherein the upper cover of the slurry buffer tank body is provided with a slurry inlet, the bottom side of the slurry buffer tank body is provided with a first discharge port, the outer end of the first discharge port is connected to the inlet pipeline of a conveying pump, and the technical key points are: a first liquid level gauge is provided in the slurry buffer tank body, an overflow port is provided on the upper side of the slurry buffer tank body, an expansion tank is provided at the bottom of the slurry buffer tank body, the expansion tank is located below the ground where the slurry buffer tank body is located and connected to the slurry The buffer tank body is formed in an L shape, and the expansion tank is provided with a feed port on the upper surface exposed to the outside of the ground. The outer end of the overflow port is connected with a tee, one side port of the tee is connected to the overflow port, the upper port is connected to the water replenishment pipeline, and the lower port is connected to the feed port of the expansion tank. A second liquid level gauge is provided in the expansion tank, and a second discharge port is provided on the lower side wall of the expansion tank. A compensation pipeline is provided at the outer end of the second discharge port, and the end of the compensation pipeline intersects with the inlet pipeline of the transmission pump. A first solenoid valve is provided at the end of the compensation pipeline.
[0007] In the above-mentioned automatic liquid level control mechanism for the slurry buffer tank, a cover plate is provided on the portion of the expansion tank exposed outside the ground, and the cover plate is flush with the ground to avoid interference with the arrangement of other equipment or tools.
[0008] In the above-mentioned automatic liquid level control mechanism for the slurry buffer tank, a flow meter is provided at the overflow port to monitor the overflow amount.
[0009] The above-mentioned slurry buffer tank liquid level automatic control mechanism, the stirring assembly includes a stirring motor, a stirring vertical shaft connected to the output end of the stirring motor, and a stirring blade arranged on the stirring vertical shaft, the stirring motor is fixed on the upper cover, the center line of the stirring vertical shaft coincides with the center line of the slurry buffer tank body, the lower end of the stirring vertical shaft passes through the bottom of the slurry buffer tank body and enters the expansion tank, the number of the stirring blades is two, one of which is located in the slurry buffer tank body, and the other is located in the expansion tank.
[0010] In the above-mentioned automatic liquid level control mechanism for the slurry buffer tank, the upper part of the tee is provided with a second solenoid valve for cutting off the water supply source, and the lower part of the tee is provided with a third solenoid valve for cutting off the feed source of the expansion tank.
[0011] The beneficial effects of the utility model are:
[0012] 1. An expansion tank is added below the ground where the slurry buffer tank body is located. There is no need to use a high-power, high-capacity delivery pump. When the slurry feed volume suddenly increases and the liquid level reaches the overflow port, the slurry enters the expansion tank through the overflow port, the tee and the feed port for storage. When the slurry feed volume suddenly decreases, the first liquid level meter monitors that the liquid level in the slurry buffer tank body reaches the set lower limit, the first solenoid valve opens, and the delivery pump extracts the stored slurry in the expansion tank through the compensation pipeline, avoiding the phenomenon of pumping out. At the same time, there is no need to replenish water, saving water resources.
[0013] 2. When both the second liquid level gauge and the first liquid level gauge detect that the liquid level has reached the set lower limit, water is added to the slurry buffer tank body through the tee and water supply pipeline to avoid the pump being emptied. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the utility model.
[0015] In the figure: 1. second solenoid valve, 2. slurry inlet, 3. stirring motor, 4. upper cover, 5. buffer tank body, 6. first liquid level meter, 7. stirring vertical shaft, 8. first discharge port, 9. transfer pump, 10. ground, 11. first solenoid valve, 12. second discharge port, 13. expansion tank, 14. stirring blade, 15. second liquid level meter, 16. cover plate, 17. tee, 18. flow meter, 19. third solenoid valve, 20. stirring blade, 21. overflow port, 22. feed port. DETAILED DESCRIPTION
[0016] The utility model is described in detail according to the accompanying drawings of the specification.
[0017] like Figure 1 As shown, the slurry buffer tank liquid level automatic control mechanism includes a slurry buffer tank body 5 and a stirring assembly. The upper cover 4 of the slurry buffer tank body 5 is provided with a slurry inlet 2, and the bottom side of the slurry buffer tank body 5 is provided with a first discharge port 8, and the outer end of the first discharge port 8 is connected to the inlet pipeline of the transmission pump 9.
[0018] The slurry buffer tank body 5 is provided with a first liquid level meter 6, an overflow port 21 is provided on the upper side of the slurry buffer tank body 5, and a flow meter 18 is provided at the overflow port 21 to monitor the overflow amount.
[0019] The bottom of the slurry buffer tank body 5 is provided with an expansion tank 13, which is located below the ground where the slurry buffer tank body 5 is located and forms an L shape with the slurry buffer tank body 5. The expansion tank 13 is provided with a feed port 22 on the upper surface exposed to the outside of the ground, and the outer end of the overflow port 21 is connected to a tee 17, one side port of the tee 17 is connected to the overflow port 21, the upper port is connected to the water replenishment pipeline, and the lower port is connected to the feed port 22 of the expansion tank 13. A second liquid level gauge 15 is provided in the expansion tank 13, and a second discharge port 12 is provided on the lower side wall of the expansion tank 13. A compensation pipeline is provided at the outer end of the second discharge port 12, and the end of the compensation pipeline intersects with the inlet pipeline of the conveying pump 9, and a first electromagnetic valve 11 is provided at the end of the compensation pipeline. A second electromagnetic valve 1 for cutting off the water replenishment source is provided at the upper part of the tee 17, and a third electromagnetic valve 19 for cutting off the feed source of the expansion tank 13 is provided at the lower part of the tee 17.
[0020] In this embodiment, the expansion tank 13 is provided with a cover plate 16 at the part exposed outside the ground 10, and the cover plate 16 is flush with the ground to avoid interfering with the arrangement of other equipment or tools. After long-term work, the cover plate 16 can be opened to clean the expansion tank 13 for easy maintenance.
[0021] The stirring assembly includes a stirring motor 3, a stirring shaft 7 connected to the output end of the stirring motor 3, and a stirring blade arranged on the stirring shaft 7. The stirring motor 3 is fixed on the upper cover 4. The center line of the stirring shaft 7 coincides with the center line of the slurry buffer tank body 5. The lower end of the stirring shaft 7 passes through the bottom of the slurry buffer tank body 5 and enters the expansion tank 13. There are two stirring blades, one of which is located in the slurry buffer tank body 5 and the other is located in the expansion tank 13. Avoid slurry silting and blocking the first discharge port 8 and the second discharge port 12.
[0022] Working principle:
[0023] 1. When the slurry feed rate suddenly increases and the liquid level reaches the overflow port 21, the slurry enters the expansion tank 13 through the overflow port 21, the tee 17 and the feed port 22 for storage. When the slurry feed rate suddenly decreases, the first liquid level meter 6 detects that the liquid level in the slurry buffer tank body 5 reaches the set lower limit, the first solenoid valve 11 opens, and the transfer pump 9 extracts the stored slurry in the expansion tank 13 through the compensation pipeline without emptying it.
[0024] 2. When the second liquid level gauge 15 and the first liquid level gauge 6 both detect that the liquid level has reached the set lower limit, water is added to the slurry buffer tank body 5 through the tee 17 and the water supply pipeline to prevent the transfer pump from being emptied.
[0025] The above is a detailed description of the embodiments of the utility model, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the invention of the utility model should still fall within the scope of this patent.
Claims
1. An automatic liquid level control mechanism for a slurry buffer tank, comprising a slurry buffer tank body and a stirring assembly, wherein the upper cover of the slurry buffer tank body is provided with a slurry inlet, and the bottom side of the slurry buffer tank body is provided with a first discharge port, and the outer end of the first discharge port is connected to the inlet pipeline of a conveying pump, characterized in that: A first liquid level gauge is provided in the slurry buffer tank body, an overflow port is provided on the upper side of the slurry buffer tank body, an expansion tank is provided at the bottom of the slurry buffer tank body, the expansion tank is located below the ground where the slurry buffer tank body is located and forms an L shape with the slurry buffer tank body, a feed port is provided on the upper surface of the expansion tank exposed to the outside of the ground, a tee is connected to the outer end of the overflow port, one side port of the tee is connected to the overflow port, the upper port is connected to the water replenishment pipeline, and the lower port is connected to the feed port of the expansion tank, a second liquid level gauge is provided in the expansion tank, a second discharge port is provided on the lower side wall of the expansion tank, a compensation pipeline is provided at the outer end of the second discharge port, the end of the compensation pipeline intersects with the inlet pipeline of the conveying pump, and a first solenoid valve is provided at the end of the compensation pipeline.
2. The automatic liquid level control mechanism for a slurry buffer tank according to claim 1 is characterized in that: The expansion groove is provided with a cover plate at the portion exposed outside the ground, and the cover plate is flush with the ground.
3. The automatic liquid level control mechanism for a slurry buffer tank according to claim 1 is characterized in that: A flow meter is provided at the overflow port.
4. The automatic liquid level control mechanism for a slurry buffer tank according to claim 1 is characterized in that: The stirring assembly includes a stirring motor, a stirring vertical shaft connected to the output end of the stirring motor, and a stirring blade arranged on the stirring vertical shaft. The stirring motor is fixed on the upper cover. The center line of the stirring vertical shaft coincides with the center line of the slurry buffer tank body. The lower end of the stirring vertical shaft passes through the bottom of the slurry buffer tank body and enters the expansion tank. There are two stirring blades, one of which is located in the slurry buffer tank body and the other is located in the expansion tank.
5. The automatic liquid level control mechanism for a slurry buffer tank according to claim 1 is characterized in that: The upper part of the tee is provided with a second solenoid valve for cutting off the water supply source, and the lower part of the tee is provided with a third solenoid valve for cutting off the feed source of the expansion tank.