Intelligent control vacuum electroosmosis ore pulp dehydration efficiency test device

Abstract

The utility model relates to an intelligent control vacuum electroosmosis ore pulp dehydration efficiency test device which comprises a slurry barrel, a plastic drainage pipe serving as an anode and installed on the inner side of the barrel wall of the slurry barrel, moisture sensors installed in the middle and at the bottom of the inner side of the barrel wall and connected with an information collection system, and a stainless steel filter pipe serving as a cathode and arranged in the center of the slurry barrel. The plastic drainage pipe and the stainless steel filter pipe are connected with the positive electrode and the negative electrode of the direct-current power source through power supply lines respectively, the top of the plastic drainage pipe and the top of the stainless steel filter pipe are connected with diversion branch pipes respectively, and the two diversion branch pipes are connected with one end of the diversion main pipe after being connected in series and installed on the top of the slurry barrel respectively. The other end of the diversion main pipe is connected with an inlet of the water-gas separator, and an outlet of the water-gas separator is connected with the tail water The device can accurately test the consolidation rate of the ore washing slurry in the vacuum-electroosmosis dehydration process, and provides thinking and test basis for rapid consolidation of the ore washing slurry.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulp dewatering efficiency testing devices, and particularly relates to an intelligent control vacuum electroosmosis pulp dewatering efficiency testing experimental device. Background Art

[0002] For many years, the bauxite washing mud has been stored in a wet way by discharging it into a sludge storage pond. At present, the method of treating the washing mud by wet storage has the problems of large floor area, large investment in building the pond, low utilization rate of the pond capacity, being not conducive to comprehensive utilization, and great potential safety and environmental protection hazards. In response to the national environmental protection call, it is urgent to consolidate the washing mud in the sludge storage pond so that the consolidated soil and tail water can be reused and the pond capacity can be provided for subsequent production.

[0003] Due to the extremely fine particle size of the bauxite washing mud, about 50% of the clay and colloidal particle content, and the plasticity index of the ore mud reaching 22.8, the ore mud has high viscosity, so its dehydration is extremely difficult.

[0004] Huang Weiping described a technology of adding a flocculant and using a belt filter for three-stage dehydration in his patent "A Method for Dewatering the Tailings Mud of Bauxite Washing". Although this method can effectively control the moisture content of the filter cake below 35% and the energy consumption during the dehydration process is relatively low, due to its high cost, it cannot be widely applied to large-scale production, so its economy is not ideal.

[0005] Dai Yanpeng proposed another treatment method in the patent "A Method for Treating the Tailings of Bauxite Washing". He proposed to conduct two-stage concentration and sedimentation of the bauxite washing mud through a thickener, and then conduct pressure filtration treatment with a filter press. Although this method has achieved some results in some aspects, it also faces the problem of high cost, which limits its application in large-scale production.

[0006] Therefore, it has become an urgent need to explore an economical and feasible method to quickly consolidate the tailings mud of bauxite washing. This application is precisely based on this need, aiming to provide a new consolidation idea and provide solid basis support through experimental data, so as to open up a new path for the efficient treatment of bauxite washing tailings. Summary of the Invention

[0007] In view of the problems existing in the above-mentioned prior art, the utility model provides an intelligent control vacuum electroosmosis pulp dewatering efficiency testing experimental device, aiming to consolidate and dehydrate the washing mud by comprehensively using power control, moisture sensor arrangement and information collection system, and be able to accurately test the consolidation rate of the washing mud during the vacuum-electroosmosis dehydration process, so as to provide ideas and experimental basis for the quick consolidation of the washing mud.

[0008] In order to achieve the above purpose, the specific scheme of the utility model is as follows:

[0009] Intelligent control vacuum electroosmosis pulp dehydration efficiency test device, including a slurry bucket, a plastic drain pipe, a stainless steel filter pipe, a diversion branch pipe, a moisture sensor, a DC power supply, a water-gas separator, an information collection system and a tail water collection device. The plastic drain pipe serves as the anode and is installed on the inner side of the barrel wall of the slurry bucket. Moisture sensors are installed in the middle and bottom of the inner side of the barrel wall respectively. The moisture sensors are connected to the information collection system. The stainless steel filter pipe serves as the cathode, is arranged at the center of the slurry bucket and is installed at the bottom of the slurry bucket. The plastic drain pipe and the stainless steel filter pipe are respectively connected to the positive and negative electrodes of the DC power supply through power supply lines. The tops of the plastic drain pipe and the stainless steel filter pipe are respectively connected with a diversion branch pipe. The two diversion branch pipes are connected in series and then connected to one end of the diversion main pipe. The diversion branch pipes are respectively installed on the top of the slurry bucket. The other end of the diversion main pipe is connected to the inlet of the water-gas separator. The outlet of the water-gas separator is connected to the tail water collection device.

[0010] Furthermore, it also includes a slurry bucket support which is installed at the bottom of the slurry bucket.

[0011] Furthermore, the slurry bucket is made of transparent non-conductive plastic material. A sealing cover is provided on the top of the slurry bucket. There are a slurry inlet and a water and electricity pipeline outlet on the sealing cover. There is an openable top cover at the slurry inlet. The diversion branch pipe and the power supply line respectively pass through the water and electricity pipeline outlet and the water and electricity pipeline outlet is sealed with sealant. There are openable bottom covers at the bottom of the slurry bucket respectively. Both the openable top cover and the openable bottom cover are equipped with sealing rubber rings.

[0012] Furthermore, the number and position of the moisture sensors are adjusted according to needs to adapt to the moisture content monitoring requirements of different slurry layers.

[0013] Furthermore, the slurry bucket is a round bucket with a diameter of 100 cm and a height of 100 cm. The moisture sensor installed at the bottom of the slurry bucket is 80 cm away from the bucket mouth. The moisture sensor installed in the middle of the slurry bucket is 30 cm away from the bucket mouth.

[0014] Furthermore, the stainless steel filter pipes are evenly distributed on a circle with a diameter of 50 cm centered on the center of the slurry bucket and are fixed on the bottom of the slurry bucket.

[0015] Furthermore, the information collection system is used to collect and process the data of the moisture sensors, can display the moisture content data in real time, and process and analyze the data to evaluate the effect of the dehydration process; the water-gas separator is used for vacuum water absorption; the tail water collection device is used to collect the tail water after dehydration.

[0016] Advantages of the utility model

[0017] 1. The intelligent control vacuum electroosmosis pulp dehydration efficiency test device of the present utility model can optimize the dehydration efficiency. By changing the voltage of the DC power supply, the voltage value that maximizes the dehydration efficiency can be achieved. Different pulp compositions and humidities require different voltages to achieve the best dehydration effect. This device can adapt to different working environments and soil conditions, thereby realizing efficient dehydration.

[0018] 2. This device can monitor the moisture content in real time. By setting multiple moisture sensors and adjusting their positions, the moisture content data of the soil at different heights inside the mud bucket can be collected in real time. This is crucial for understanding the uniformity and efficiency of soil dehydration. By monitoring the moisture content in real time, the dehydration strategy can be adjusted in a timely manner to ensure that the pulp reaches the expected dryness level.

[0019] 3. This device can perform data analysis and decision support. The information collection system can not only display the moisture content data in real time but also process and analyze the data. By comparing the moisture content data at different positions and different times, the effect of the dehydration process can be evaluated, and decision support can be provided for subsequent dehydration work. For example, according to the data analysis results, the position or quantity of the sensors can be adjusted to more accurately monitor the change in moisture content.

[0020] 4. This device has automation and intelligence. Through the combined action of vacuum and electroosmosis to promote the dehydration and consolidation of the slurry, the entire system has high automation and intelligence characteristics. Through preset algorithms and programs, the system can automatically adjust parameters such as the voltage of the DC power supply, the position and quantity of the sensors, etc., to achieve the optimal dehydration effect. At the same time, it can also automatically issue alarms or prompts according to real-time data, so that the operator can take timely measures to solve problems.

[0021] 5. This device realizes precise control and optimization of the pulp dehydration process by changing the voltage of the DC power supply, setting the position and quantity of the moisture sensors, and displaying the moisture content data in real time. This not only improves the dehydration efficiency and quality but also provides strong data support and decision-making basis for related work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0023] Figure 2 is Figure 1 a top view structural schematic diagram of the sealing cover in

[0024] Figure 3 is Figure 1 a sectional view taken along line A - A in

[0025] In the figure:

[0026] 1: Mud bucket; 2: Red mud washing ore mud; 3: Plastic drain pipe; 4: Stainless steel filter pipe; 5: Moisture sensor; 6: Information collection system; 7: Sealing cover; 8: Diversion branch pipe; 9: Power supply line; 10: DC power supply; 11: Water-gas separator; 12: Tail water collection device; 13: Outlet of water and electricity pipeline; 14: Openable top cover; 15: Openable bottom cover; 16: Mud bucket support; 17: Diversion main pipe. Specific implementation mode

[0027] The present utility model will be further explained and illustrated below in conjunction with the accompanying drawings and specific implementation modes. It should be noted that this specific embodiment is not used to limit the scope of rights of the present utility model.

[0028] As Figure 1 and Figure 3 shown, taking the red mud washing ore mud as an example, the intelligent control vacuum electroosmosis ore pulp dehydration efficiency test device provided in this specific embodiment includes a mud bucket 1, a plastic drain pipe 3, a diversion branch pipe 8, a moisture sensor 5, a DC power supply 10, a water-gas separator 11, an information collection system 6, a tail water collection device 12 and a mud bucket support 16.

[0029] The mud bucket 1 is made of transparent non-conductive plastic material. The mud bucket 1 in this embodiment is a cylindrical bucket with a diameter of 100 cm and a height of 100 cm. The top of the mud bucket 1 is covered with a sealing cover 7. The sealing cover 7 is used to seal the mud bucket 1 to ensure the tightness of the internal environment of the bucket during the dehydration process. There is a mud inlet with a diameter of 40 cm and an outlet 13 of the water and electricity pipeline with a diameter of 1 cm on the sealing cover 7. There is an openable top cover 14 at the mud inlet. There are two outlets 13 of the water and electricity pipeline, so that the diversion branch pipe 8 and the power supply line 9 pass through the two outlets 13 of the water and electricity pipeline respectively, and the outlets 13 of the water and electricity pipeline are sealed with sealant to maintain the tightness inside the mud bucket 1. The bottom of the mud bucket 1 is respectively provided with an openable bottom cover 15. The openable bottom cover 15 is used for discharging mud after the test. Both the openable top cover 14 and the openable bottom cover 15 are equipped with sealing rubber rings.

[0030] Four plastic drain pipes 3 are provided and used as anodes, which are evenly installed on the inner side of the barrel wall of the mud bucket 1. Moisture sensors 5 are respectively installed in the middle and bottom of the inner side of the barrel wall. The number and position of the moisture sensors 5 are adjusted according to needs to meet the monitoring requirements of the moisture content of different mud layers. Since the mud surface will decrease during the test, the moisture sensors 5 should not be installed too close to the mouth of the mud bucket 1. Therefore, in this embodiment, the moisture sensor 5 installed at the bottom of the mud bucket 1 is 80 cm away from the bucket mouth, and the moisture sensor installed in the middle of the mud bucket 1 is 30 cm away from the bucket mouth. The moisture sensor 5 is used to monitor the moisture content of the mud in real time and provide real-time data feedback to the operator. The number and position of the moisture sensors 5 can be adjusted according to needs to ensure the accuracy and representativeness of the data.

[0031] The moisture sensor 5 is connected to the information collection system 6. The information collection system 6 is used to collect and process the data of the moisture sensor 5, and can display the moisture content data in real time, and process and analyze the data to evaluate the effect of the dehydration process; the water-gas separator 11 is used to provide vacuum water absorption.

[0032] In this embodiment, four stainless steel filter pipes 5 are provided and used as cathodes, which are arranged on a circle with the center of the mud bucket 1 as the center and a diameter of 50 cm, and corresponding to the position of the plastic drainage pipe 3, and are fixed on the bottom of the mud bucket 1.

[0033] The plastic drainage pipe 3 is connected to the positive pole of the DC power supply 10 through a power supply line, and the stainless steel filter pipe 5 is connected to the negative pole of the DC power supply 10 through a power supply line. The top parts of the plastic drainage pipe 3 and the stainless steel filter pipe 5 are respectively connected with diversion branch pipes 8. The main function of the diversion branch pipe 8 is to guide the moisture in the red mud washing ore slurry 2 to the water-gas separator 11 through the diversion main pipe 17. The diversion branch pipe 8 connected to the top of the plastic drainage pipe 3 mainly plays the role of leading out the moisture in the anode area. The diversion branch pipe 8 connected to the top of the stainless steel filter pipe 5 mainly plays the role of leading out the moisture in the cathode area. The installation position and design of the diversion branch pipe 8 should ensure that the moisture in the red mud washing ore slurry 2 can be effectively led out, while maintaining the sealing and stability of the structure, so as to facilitate the smooth progress of the entire dehydration process.

[0034] The two diversion branch pipes 8 are connected in series to one end of the diversion main pipe 17 and used for vacuum water absorption diversion. The diversion branch pipes 8 are respectively installed on the top of the mud bucket 1. The other end of the diversion main pipe 17 is connected to the inlet of the water-gas separator 11. The outlet of the water-gas separator 11 is connected to the tail water collection device 12. The mud bucket support 16 is installed at the bottom of the mud bucket 1 and is used to support the mud bucket 1 to facilitate sludge discharge after the test is completed. The tail water collection device 12 is used to collect the dehydrated tail water.

[0035] The product model of the moisture sensor 5 is the XD-03 soil humidity detection module; it is sourced from Shenzhen Mingjiatai Electronics Co., Ltd.

[0036] The product model of the information collection system 6 is the M252141 temperature and humidity multi-parameter acquisition instrument; it is sourced from Beijing Haifuda Technology Co., Ltd.

[0037] The product model of the DC power supply 10 is the DP3030 DC regulated voltage; it is sourced from Protek. After connecting the positive and negative poles to the plastic drainage pipe and the stainless steel filter pipe, it provides an adjustable DC voltage of 10V, 15V, 20V or higher. The DC power supply is a key component for controlling the dehydration voltage. By changing the voltage, the strength of the electroosmotic effect can be affected, and thus the consolidation rate can be adjusted.

[0038] The product model of the water-vapor separator 11 is a cyclone steam-water separator, sourced from Tengfei Water Treatment Equipment Technology Co., Ltd.

[0039] The product model of the tail water collection device 12 is a plastic or stainless steel bucket with a capacity of 150 liters.

[0040] Working principle:

[0041] During use, through the openable top cover 14 as Figure 2 , pour the red mud washing ore slurry 2 into the slurry bucket 1 until it is full. Then, turn on the DC power supply 10, adjust it to 10V, and at the same time turn on the water-vapor separator 11. Obtain the moisture content of the slurry when it enters the bucket 1 through the information collection system 6. After starting the vacuum electroosmotic dehydration, record the moisture content every 60 minutes. When the moisture content reaches 30%, turn off the power supply and the water-vapor separator 11, and discharge the dehydrated red mud washing ore slurry 2 from the bottom openable bottom cover 15, and clean the bucket wall with clean water. One set of tests is completed.

[0042] Repeat the above tests, adjust the voltage of the DC power supply 10 to 15V, 20V or higher, find the optimal drainage voltage and the relationship between the drainage rate and the DC voltage 10, as the test basis for the vacuum-electroosmotic dehydration of the washing ore slurry.

Claims

1. Intelligent control vacuum electroosmosis pulp dehydration efficiency test device, characterized in that, It includes a mud bucket, a plastic drain pipe, a stainless-steel filter pipe, diversion branch pipes, a moisture sensor, a DC power supply, a water-gas separator, an information collection system, and a tail water collection device. The plastic drain pipe serves as the anode and is installed on the inner side of the barrel wall of the mud bucket. Moisture sensors are installed in the middle and bottom of the inner side of the barrel wall respectively, and the moisture sensors are connected to the information collection system. The stainless-steel filter pipe serves as the cathode, is arranged at the center position of the mud bucket, and is installed at the bottom of the mud bucket. The plastic drain pipe and the stainless-steel filter pipe are respectively connected to the positive and negative poles of the DC power supply through power supply lines. Diversion branch pipes are respectively connected to the tops of the plastic drain pipe and the stainless-steel filter pipe. After the two diversion branch pipes are connected in series, they are connected to one end of a diversion main pipe. The diversion branch pipes are respectively installed on the top of the mud bucket. The other end of the diversion main pipe is connected to the inlet of the water-gas separator, and the outlet of the water-gas separator is connected to the tail water collection device.

2. The device according to claim 1, characterized in that It further includes a mud bucket support, and the mud bucket support is installed at the bottom of the mud bucket.

3. The device according to claim 1, characterized in that, The mud bucket is made of transparent non-conductive plastic material. A sealing cover is provided on the top of the mud bucket. There are a mud inlet and a water and electricity pipeline outlet on the sealing cover. There is an openable top cover at the mud inlet. The diversion branch pipe and the power supply line respectively pass through the water and electricity pipeline outlet and are sealed with sealant at the water and electricity pipeline outlet. There are openable bottom covers at the bottom of the mud bucket respectively. Both the openable top cover and the openable bottom cover are equipped with sealing rubber rings.

4. The device according to claim 1, wherein The quantity and position of the moisture sensors are adjusted according to needs to adapt to the moisture content monitoring requirements of different mud layers.

5. The device according to claim 1, characterized in that, The mud bucket is a cylindrical bucket with a diameter of 100 cm and a height of 100 cm. The moisture sensor installed at the bottom of the mud bucket is 80 cm away from the bucket mouth, and the moisture sensor installed in the middle of the mud bucket is 30 cm away from the bucket mouth.

6. The device according to claim 1, wherein The stainless-steel filter pipes are evenly arranged on a circle with a diameter of 50 cm centered on the center of the mud bucket and are fixed on the bottom of the mud bucket.

7. The device according to claim 1, characterized in that, The information collection system is used to collect and process the data of the moisture sensors, can display the moisture content data in real time, and process and analyze the data to evaluate the effect of the dehydration process; the water-gas separator is used for vacuum water absorption; the tail water collection device is used to collect the dehydrated tail water.

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