Sand pump sealing water system for recycling filter pressing water
By replacing the sand pump sealed water, the problem of reduced qualified liquid concentration and increased wastewater volume caused by the sand pump sealed water is solved, the wastewater reduction and cost reduction are achieved, and the metallurgical production process is optimized.
Patent Information
- Application Number
- CN202422075812.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-26
AI Technical Summary
In the prior art, sand pump sealed water is circulating water, resulting in the reduction of the system's qualified liquid concentration, the increase in the amount of wastewater, and the increase in the wastewater treatment cost, affecting product quality and production costs.
Replace the sealed water of the sand pump. The filter pressed water is sent to the buffer tank through the filter pressed water supply device and the filter pressed water supply pipeline for settlement and buffering. Then, enter the sand pump through the sealed water supply pipeline to monitor the filter pressed water capacity in the buffer tank in real time to realize the function of sealed water.
Reduce the amount of wastewater generated, increase the concentration of qualified liquid, reduce wastewater treatment costs, optimize the production line process flow, and achieve energy saving, consumption reduction, quality improvement and efficiency improvement.
Smart Images
Figure CN223127494U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the metallurgy field, and particularly relates to a sand pump seal water system for recycling filter press water. Background Art
[0002] In the metallurgy technology field, the production of vanadium oxide is a complex process involving multiple technological steps, including raw material pretreatment, roasting, leaching, precipitation, and melting or reduction, etc. Among them, the leaching process is one of the key links, which directly affects the product quality and production cost. In the traditional leaching process, the use of sand pump seal water has an important impact on the system water balance and the concentration of qualified liquid. However, there are obvious deficiencies in the existing technology in this regard, and improvement is urgently needed.
[0003] According to patent literature retrieval, in the existing technology, the belt filter press leaching process is adopted in the vanadium oxide roasting and leaching process, and the incoming material is the slurry after the roasted clinker is wet ball milled. In this process, the seal water of the sand pump is recycled water. Although this method is simple, there are significant problems. The recycled water enters the leaching system with the slurry during the use of the sand pump, resulting in a decrease in the concentration of the qualified liquid in the system and having an adverse impact on the system water balance. In addition, the vanadium concentration in the filter press water at the bottom of the leaching is relatively low, and it directly enters the qualified liquid system, further reducing the concentration of the qualified liquid and increasing the cost and difficulty of wastewater treatment.
[0004] Today, with the increasingly strict environmental protection and cost control requirements, this traditional method obviously does not conform to the working principle of "cost reduction and efficiency improvement". According to the existing technology, each sand pump consumes an average of 0.5 m³ of recycled water per hour to enter the system, and 48 m³ of recycled water enters the qualified liquid system every day. This not only reduces the concentration of the qualified liquid but also increases the amount of wastewater, resulting in an increase in the wastewater treatment cost. At the same time, the usage amount of the washing water at the bottom of the leaching is about 200 m³ per day, and the vanadium concentration in the plate frame effluent is about 25 g / L, and the impurity contents such as Si and P are equivalent to those of the qualified liquid, which also affects the quality of the qualified liquid.
[0005] To sum up, there are obvious deficiencies in the use of sand pump seal water in the existing technology, mainly manifested in the phenomenon that the use of recycled water leads to a decrease in the concentration of the qualified liquid, an increase in the amount of wastewater, and an increase in the wastewater treatment cost. The existence of these problems not only affects the product quality but also increases the production cost, which is not conducive to the sustainable development of the enterprise.
[0006] In summary, it is urgent to develop a sand pump seal water system for recycling filter press water to reduce the generation amount of wastewater, improve the concentration of the qualified liquid, reduce the wastewater treatment cost, and achieve the goals of energy conservation, consumption reduction, quality improvement, and efficiency increase. Content of the Utility Model
[0007] In view of this, in order to solve the problems in the prior art, the utility model recycles the filter press water, which can reduce the generation amount of waste water, increase the concentration of qualified liquid, reduce the labor intensity of operators, and optimize the production line process flow. The design principle of the utility model is: using the filter press water to replace the sand pump seal water, reducing the waste water volume, and reducing the waste water treatment cost, so as to achieve the purpose of energy conservation, consumption reduction, quality improvement and efficiency increase. 1. First, pump the filter press water into the buffer tank for cooling and buffering; 2. The filter press water entering the buffer tank is automatic; 3. Replace the circulating water with the filter press water to achieve the function of seal water.
[0008] The technical solution adopted by the utility model is as follows:
[0009] The utility model provides a sand pump seal water system for recycling filter press water, which sequentially includes a filter press water supply device, a filter press water supply pipeline, a buffer tank, a seal water supply pipeline and a sand pump according to the water flow direction;
[0010] Wherein, the filter press water supply device is connected to the buffer tank through the filter press water supply pipeline, a liquid level meter is arranged in the buffer tank, and the buffer tank is connected to the sand pump through the seal water supply pipeline.
[0011] In some embodiments, the filter press water supply pipeline includes a liquid outlet pipeline, the liquid outlet pipeline includes one or more liquid outlet pumps and a liquid outlet pipeline. When there are multiple liquid outlet pumps, the multiple liquid outlet pumps are connected in parallel through the liquid outlet pipeline.
[0012] In some embodiments, the filter press water supply pipeline further includes a control pipeline connected downstream of the liquid outlet pipeline, a valve is arranged on the control pipeline, and the valve is communicatively connected to the liquid level meter in the buffer tank.
[0013] In some embodiments, the sand pump seal water system for recycling filter press water further includes a mixing tank, the mixing tank is connected to the filter press water supply pipeline, and at the same time, the mixing tank is connected in parallel with the buffer tank.
[0014] In some embodiments, the control pipeline includes a first pipeline and a second pipeline, the first pipeline is connected to the buffer tank, and a first pneumatic valve is arranged upstream of the buffer tank on the first pipeline, the second pipeline is connected to the mixing tank, and a second pneumatic valve is arranged upstream of the mixing tank on the second pipeline, the first pneumatic valve and the second pneumatic valve are linked and communicatively connected to the liquid level meter in the buffer tank.
[0015] In some embodiments, the seal water supply pipeline includes one or more buffer pumps and a seal water supply pipeline. According to the water flow direction, the buffer tank is connected to one end of the buffer pump through the seal water supply pipeline, and the other end of the buffer pump is connected to the sand pump through the seal water supply pipeline.
[0016] In some embodiments, the sealed water supply pipeline includes a third pipeline and a fourth pipeline in parallel, the third pipeline and the fourth pipeline are separated downstream of the buffer tank and converge upstream of the sand pump.
[0017] The third pipeline includes a first buffer pump provided on the third pipeline, and the fourth pipeline includes a second buffer pump on the fourth pipeline.
[0018] In some embodiments, the sand pump includes one or more sand pumps connected by a fifth pipeline. When there are multiple sand pumps, the multiple sand pumps are connected in parallel through the fifth pipeline.
[0019] In some embodiments, the diameters of the liquid outlet pipeline, the first pipeline, and the second pipeline are DN80;
[0020] The diameters of the third pipeline, the fourth pipeline, and the fifth pipeline are DN50.
[0021] In some embodiments, the sand pump is connected to a belt filter; the filter press water supply device is connected to a plate and frame filter press.
[0022] The beneficial effects of the present utility model at least include: The system of the present utility model changes the sealed water of the roasting sand pump from circulating water to plate and frame filter press water. Through the filter press water supply device and the filter press water supply pipeline, the filter press water is introduced into the buffer tank. After sedimentation (cooling, buffering), the filter press water enters the sand pump through the sealed water supply pipeline, and the capacity of the filter press water in the buffer tank can be monitored in real time. The system of the present utility model can reduce the amount of wastewater generated and reduce the production cost of vanadium oxide. Description of the Drawings
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other embodiments can be obtained based on these drawings.
[0024] Figure 1 It is a device flow chart of a sand pump sealed water system for filter press water recycling provided for some embodiments of the present utility model;
[0025] Figure 2 It is a schematic diagram of the belt filter leaching process in the vanadium oxide roasting and leaching process for some embodiments of the present utility model.
[0026] Explanation of the Reference Numerals in the Drawings
[0027] 1. Filter press water supply device; 2. Filter press water supply pipeline; 201. Liquid outlet pipeline; 2011. Liquid outlet line; 202. Control pipeline; 2021. First pipeline; 2022. Second pipeline; 3. Buffer tank; 4. Sealing water supply pipeline; 401. Third pipeline; 402. Fourth pipeline; 5. Sand pump; 501. Fifth pipeline; 6. Liquid level gauge; 7. Liquid outlet pump; 8. Mixed tank; 9. First pneumatic valve; 10. Second pneumatic valve; 11. First buffer pump; 12. Second buffer pump. Detailed implementation manners
[0028] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the following further describes the embodiments of the present utility model in detail with reference to specific embodiments and the accompanying drawings.
[0029] It should be noted that all the expressions using "first" and "second" in the embodiments of the present utility model are used to distinguish two entities or parameters with the same name but different, so it can be seen that "first" and "second" are only for the convenience of expression and should not be construed as a limitation on the embodiments of the present utility model. This will not be elaborated one by one in the subsequent embodiments.
[0030] As Figure 1 shown, the present utility model provides a sand pump 5 sealing water system for recycling filter press water. According to the water flow direction, it sequentially includes a filter press water supply device 1, a filter press water supply pipeline 2, a buffer tank 3, a sealing water supply pipeline 4 and a sand pump 5;
[0031] Wherein the filter press water supply device 1 is connected to the buffer tank 3 through the filter press water supply pipeline 2. A liquid level gauge 6 is provided in the buffer tank 3, and the buffer tank 3 is connected to the sand pump 5 through the sealing water supply pipeline 4.
[0032] In order to save the amount of circulating water used in the leaching process of the vanadium oxide belt filter, the present utility model changes the sealing water of the sand pump 5 from circulating water to plate and frame filter press water. The filter press water is introduced into the buffer tank 3 through the filter press water supply device 1 and the filter press water supply pipeline 2. After sedimentation (cooling and buffering), the filter press water enters the sand pump 5 through the sealing water supply pipeline 4, and the capacity of the filter press water in the buffer tank 3 can be monitored in real time. The system of the present utility model can reduce the amount of wastewater generated and reduce the production cost of vanadium oxide.
[0033] In some embodiments, the filter press water supply pipeline 2 includes a liquid outlet pipeline 201, and the liquid outlet pipeline 201 includes one or more liquid outlet pumps 7 and a liquid outlet pipeline 2011. When there are multiple liquid outlet pumps 7, the multiple liquid outlet pumps 7 are connected in parallel through the liquid outlet pipeline 2011. In some embodiments, there are two liquid outlet pumps 7. At this time, the two liquid outlet pumps 7 are connected in parallel, with one for daily use and one as a standby. When one liquid outlet pump 7 fails, the standby liquid outlet pump 7 can be enabled in time without pausing production, increasing the stability of the system of the present utility model.
[0034] In some embodiments, the filter press water supply pipeline 2 further includes a control pipeline 202 connected downstream of the liquid outlet pipeline 201. The control pipeline 202 is provided with a valve, and the valve is communicatively connected to the liquid level gauge 6 in the buffer tank 3. Through the communicative connection between the valve and the liquid level gauge 6, the opening and closing of the valve can be automatically adjusted according to the liquid level in the buffer tank 3, avoiding the water flow escaping caused by too high a liquid level, and the liquid level height in the buffer tank 3 can be controlled at any time, saving the water consumption of the system of the present utility model.
[0035] In some embodiments, the seal water system of the sand pump 5 for the recycled utilization of filter press water further includes a mixing tank 8. The mixing tank 8 is connected to the filter press water supply pipeline 2, and at the same time, the mixing tank 8 is connected in parallel with the buffer tank 3.
[0036] The mixing tank 8 is provided to receive the excess water when there is too much water in the buffer tank 3, which can be recycled in time and save water resources.
[0037] In order to further control and adjust the accuracy of the water level in the buffer tank 3, in some embodiments, the control pipeline 202 includes a first pipeline 2021 and a second pipeline 2022. The first pipeline 2021 is connected to the buffer tank 3, and a first pneumatic valve 9 is provided upstream of the buffer tank 3 in the first pipeline 2021. The second pipeline 2022 is connected to the mixing tank 8, and a second pneumatic valve 10 is provided upstream of the mixing tank 8 in the second pipeline 2022. The first pneumatic valve 9 and the second pneumatic valve 10 are linked and communicatively connected to the liquid level gauge 6 in the buffer tank 3. Specifically, in some embodiments, the first pneumatic valve 9 is normally open and the second pneumatic valve 10 is normally closed. When the liquid level in the buffer tank 3 reaches the high level, the first pneumatic valve 9 closes and the second pneumatic valve 10 opens; when the liquid level in the buffer tank 3 drops to the low level, the first pneumatic valve 9 opens and the second pneumatic valve 10 closes. By setting the first pipeline 2021 and the second pipeline 2022 and providing corresponding pneumatic valves upstream, the present utility model can achieve precise control of the filter press water supply and the mixed water supply, further improving the automation level of the system.
[0038] In some embodiments, the sealed water supply pipeline 4 includes one or more buffer pumps and a sealed water supply pipeline. In the direction of water flow, the buffer tank 3 is connected to one end of the buffer pump through the sealed water supply pipeline, and the other end of the buffer pump is connected to the sand pump 5 through the sealed water supply pipeline.
[0039] In some embodiments, the sealed water supply pipeline includes a third pipeline 401 and a fourth pipeline 402 connected in parallel. The third pipeline 401 and the fourth pipeline 402 are separated downstream of the buffer tank 3 and converge upstream of the sand pump 5.
[0040] The third pipeline 401 includes a first buffer pump 11 provided on the third pipeline 401, and the fourth pipeline 402 includes a second buffer pump 12 on the fourth pipeline 402. The parallel design of the third pipeline 401 and the fourth pipeline 402, as well as the use of the first buffer pump 11 and the second buffer pump 12, further improves the stability and reliability of the sealed water supply and ensures the normal operation of the sand pump 5.
[0041] To meet the sewage treatment requirements of different scales, in some embodiments, the sand pump 5 includes one or more sand pumps 5 connected through a fifth pipeline 501. When there are multiple sand pumps 5, the multiple sand pumps 5 are connected in parallel through the fifth pipeline 501. By connecting multiple sand pumps 5 through the fifth pipeline 501 in the present utility model, parallel operation can be achieved, improving the processing capacity and flexibility of the system. In some embodiments of the present utility model, there are 8 sand pumps 5.
[0042] In some embodiments, the diameters of the liquid outlet pipeline 2011, the first pipeline 2021, and the second pipeline 2022 are DN80;
[0043] The diameters of the third pipeline 401, the fourth pipeline 402, and the fifth pipeline 501 are DN50. The clear regulation of the pipe diameters makes the system design more standardized, facilitating construction and maintenance, and at the same time ensuring the smooth flow of water and the efficient operation of the system.
[0044] In some embodiments, the sand pump 5 is connected to a belt filter; the filter press water supply device 1 is connected to a plate and frame filter press. By connecting the sand pump 5 to the belt filter and the filter press water supply device 1 to the plate and frame filter press, in the prior art, the oxidation vanadium roasting and leaching process of vanadium oxide uses a belt filter leaching process, as Figure 2 shown, the present utility model replaces the water source of the sand pump 5 in the prior art, forming a complete sewage treatment and resource recovery system, improving the sewage treatment efficiency and achieving the maximum utilization of resources.
[0045] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.
[0046] The above-described embodiments merely represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.
Claims
1. A sealing water system for a sand pump (5) for recycling of pressure-filtered water, characterized in that, According to the water flow direction, it successively includes a pressure filtration water supply device (1), a pressure filtration water supply pipeline (2), a buffer tank (3), a seal water supply pipeline (4), and a sand pump (5); Among them, the pressure filtration water supply device (1) is connected to the buffer tank (3) through the pressure filtration water supply pipeline (2). A liquid level gauge (6) is provided in the buffer tank (3), and the buffer tank (3) is connected to the sand pump (5) through the seal water supply pipeline (4).
2. The sealed water system of the sand pump (5) for pressure filtration water recycling according to claim 1, characterized in that, The pressure filtration water supply pipeline (2) includes a liquid outlet pipeline (201). The liquid outlet pipeline (201) includes one or more liquid outlet pumps (7) and a liquid outlet pipeline (2011). When there are multiple liquid outlet pumps (7), the multiple liquid outlet pumps (7) are connected in parallel through the liquid outlet pipeline (2011).
3. The sand pump (5) sealing water system for pressure filtration water recycling according to claim 2, characterized in that, The pressure filtration water supply pipeline (2) further includes a control pipeline (202) connected downstream of the liquid outlet pipeline (201). The control pipeline (202) is provided with a valve, and the valve is communicatively connected to the liquid level gauge (6) in the buffer tank (3).
4. The sealed water system of the sand pump (5) for pressure filtration water recycling according to claim 3, characterized in that, The seal water system of the sand pump (5) for the recycling of pressure filtration water further includes a mixing tank (8). The mixing tank (8) is connected to the pressure filtration water supply pipeline (2), and at the same time, the mixing tank (8) is connected in parallel with the buffer tank (3).
5. The sealed water system of the sand pump (5) for recycling the press-filtered water according to claim 4, characterized in that, The control pipeline (202) includes a first pipeline (2021) and a second pipeline (2022). The first pipeline (2021) is connected to the buffer tank (3), and a first pneumatic valve (9) is provided upstream of the buffer tank (3) on the first pipeline (2021). The second pipeline (2022) is connected to the mixing tank (8), and a second pneumatic valve (10) is provided upstream of the mixing tank (8) on the second pipeline (2022). The first pneumatic valve (9) and the second pneumatic valve (10) are linked and communicatively connected to the liquid level gauge (6) in the buffer tank (3).
6. The sealed water system of the sand pump (5) for recycling of pressure-filtered water according to claim 2, characterized in that, The seal water supply pipeline (4) includes one or more buffer pumps and a seal water supply pipeline. According to the water flow direction, the buffer tank (3) is connected to one end of the buffer pump through the seal water supply pipeline, and the other end of the buffer pump is connected to the sand pump (5) through the seal water supply pipeline.
7. The sand pump (5) sealing water system for pressure filtration water recycling according to claim 6, characterized in that, The seal water supply pipeline includes a third pipeline (401) and a fourth pipeline (402) connected in parallel. The third pipeline (401) and the fourth pipeline (402) are separated at the downstream of the buffer tank (3) and converge upstream of the sand pump (5). The third pipeline (401) includes a first buffer pump (11) provided on the third pipeline (401), and the fourth pipeline (402) includes a second buffer pump (12) on the fourth pipeline (402).
8. The seal water system of the sand pump (5) for pressure filter water recycling according to claim 7, characterized in that, The sand pump (5) includes one or more sand pumps (5) connected through a fifth pipeline (501). When there are multiple sand pumps (5), the multiple sand pumps (5) are connected in parallel through the fifth pipeline (501).
9. The sealed water system of the sand pump (5) for pressure filter water recycling according to claim 8, characterized in that, The diameters of the liquid outlet pipeline (2011), the first pipeline (2021), and the second pipeline (2022) are DN80; The diameters of the third pipeline (401), the fourth pipeline (402) and the fifth pipeline (501) are DN50.
10. The sand pump (5) sealing water system for pressure filtration water recycling according to claim 1, characterized in that, The sand pump (5) is connected to the belt filter; the pressure filtration water supply device (1) is connected to the plate and frame filter press.