An in-solution organic removal device

Abstract

The application discloses a solution organic matter removing device and relates to the technical field of hydrometallurgy. The device mainly comprises a primary reaction chamber and an ultrasonic strengthening device. The primary reaction chamber is provided with a raw solution inlet, a waste gas outlet and a primary outlet. The inside of the primary reaction chamber is provided with a spraying device. The raw solution inlet is used for feeding raw material liquid. The spraying device is used for spraying reaction agents. The waste gas outlet is used for discharging reaction generated gas. The primary outlet is used for discharging solution after reaction. The ultrasonic strengthening device is connected with the primary reaction chamber and is used for manufacturing a reaction environment in which chemical reaction in the primary reaction chamber can be carried out. The application can quickly and efficiently treat organic matters in solution and has good treatment effect.

Description

Technical Field

[0001] The invention relates to the technical field of hydrometallurgy, in particular to a device for removing organic matter in a solution. Background Art

[0002] The Bayer process is currently the most widely used method for processing bauxite to produce alumina. During the Bayer process, as the mother liquor circulates, the organic matter in the sodium aluminate solution extracted from the bauxite undergoes multiple high-pressure dissolutions, gradually transforming from large-molecule organic matter to small-molecule organic matter that is more difficult to decompose. Ultimately, it transforms into sodium carbonate, sodium oxalate, and other small-molecule organic sodium salts. These organic matter gradually accumulates as the sodium aluminate solution circulates, and when it reaches a certain concentration, it can seriously affect the Bayer process production cycle, crystal nucleation, seed crystal decomposition, and alumina product quality. Currently, organic matter is typically treated and removed by passing a treatment agent through the solution containing the organic matter. However, due to the limitations of reaction conditions, many chemical reactions are difficult to proceed, resulting in inadequate removal of the organic matter and affecting the treatment effect. Therefore, there is a need for an in-solution organic matter removal device that can quickly and efficiently treat organic matter in the solution with good treatment effect. Summary of the Invention

[0003] The purpose of the present invention is to provide a device for removing organic matter in solution to solve the problems existing in the above-mentioned prior art, which can quickly and efficiently treat organic matter in solution and has good treatment effect.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a device for removing organic matter in a solution, comprising

[0006] A primary reaction chamber, wherein the primary reaction chamber is provided with a raw liquid inlet, an exhaust gas outlet and a primary outlet, and an injection device is provided inside the primary reaction chamber, wherein the raw liquid inlet is provided at the side of the primary reaction chamber for introducing the raw liquid, the injection device is used to inject the reactant, the exhaust gas outlet is provided at the upper part of the primary reaction chamber for discharging the gas generated by the reaction, and the primary outlet is used for the outflow of the solution after the reaction;

[0007] An ultrasonic enhancement device is connected to the primary reaction chamber and is used to create a reaction environment in which a chemical reaction can proceed in the primary reaction chamber.

[0008] Preferably, the ultrasonic enhancement device includes an ultrasonic transducer and a shell, the shell is wrapped around the outside of the ultrasonic transducer, the ultrasonic transducer is arranged below the primary reaction chamber, and includes a vibrator, a horn and an ultrasonic probe, the top of the ultrasonic probe is connected to the bottom end of the primary reaction chamber, the bottom end is connected to the top of the horn, the bottom end of the horn is connected to the vibrator, the vibrator is used to generate mechanical vibration, the horn is used to amplify the mechanical vibration and transmit it to the ultrasonic probe, and the ultrasonic probe is used to transmit the amplified mechanical vibration to the primary reaction chamber.

[0009] Preferably, it further comprises a heat-insulating layer, wherein the upper layer of the heat-insulating layer is connected to the bottom surface of the primary reaction chamber, and the lower layer is connected to the ultrasonic probe.

[0010] Preferably, the injection device includes a motor and an inlet pipe, a centrifugal pump, a vent pipe, a jet vacuum pump and a tail pipe connected in sequence. The motor is connected to the centrifugal pump, and the motor is used to drive the centrifugal pump. The inlet pipe is used for the reactant to flow in. The reactant passes through the centrifugal pump and the vent pipe and then enters the jet vacuum pump. After the jet vacuum pump processes the reactant, it sprays the reactant in the form of a jet through the tail pipe.

[0011] Preferably, a spiral blade device is further provided at the end of the tail pipe, and the spiral blade device is used to cyclone the reactant in the jet form, so that the reactant enters the primary reaction chamber in a cyclonic manner.

[0012] Preferably, it also includes a slag removal device, which is arranged in the primary reaction chamber and is used to remove waste slag produced after the reactant and the raw material liquid react. The slag removal device includes a rotating shaft, a rotating shaft motor and a scraper. The rotating shaft is arranged along the height direction of the primary reaction chamber, and the output shaft of the rotating shaft motor is connected to the first end of the rotating shaft for driving the rotating shaft to rotate. The second end of the rotating shaft is fixedly connected to the scraper. The scraper is arranged at the bottom of the primary reaction chamber and is used to scrape off waste slag, and a filter plate is provided at the bottom of the scraper. The filter plate is used for reflux of the liquid after the reaction. In addition, a waste slag holding chamber is also provided on the side of the rotating shaft away from the primary reaction chamber. The bottom of the waste slag holding chamber is connected to the bottom of the primary reaction chamber. The scraper can extend to the waste slag holding tank and can scrape the waste slag into the waste slag holding chamber.

[0013] Preferably, a volume sensor is further provided in the primary reaction chamber, and the volume sensor is used to sense the volume of the waste residue and transmit an electrical signal to a control system, and the control system controls the operation of the rotating shaft motor.

[0014] Preferably, a secondary reaction chamber is further included, and the secondary reaction chamber is provided with a solution inlet, a drain port and a gas inlet and outlet. The solution inlet is connected to the primary outlet, the drain port is provided at the bottom of the secondary reaction chamber, and is used to discharge the solution after treatment. The gas inlet and outlet are provided on the side of the secondary reaction chamber. A stirring device and a filtering device are provided inside the secondary reaction chamber. The solution after the reaction in the primary reaction chamber enters the stirring device through the solution inlet. The stirring device is used to stir the solution. The solution after stirring enters the filtering device, and the filtering device is used to filter the solution. The gas inlet and outlet are used to introduce or exhaust air into or out of the filtering device.

[0015] Preferably, the stirring device comprises a stirring shaft, a stirring paddle and a stirring motor, wherein the output shaft of the stirring motor is fixedly connected to one end of the stirring shaft, and the other end of the stirring shaft is fixedly connected to the stirring paddle, and the stirring paddle is used to stir the solution;

[0016] The secondary reaction chamber is also provided with a filter aid inlet pipe for adding filter aid, and the filter aid inlet pipe is provided with a one-way valve.

[0017] Preferably, the filter device includes a card plate, a waste trough, a filter cloth, a movable head plate and a locking and telescopic device, the card plate includes a plurality of tooth-shaped plates arranged opposite to each other and arranged vertically, the filter cloth is arranged between the two tooth-shaped plates, the waste trough is arranged at the lower part of the card plate for receiving slag, the movable head plate is slidably arranged on a fixed column, and the fixed column is perpendicular to the card plate, the locking and telescopic device is arranged on the fixed column and can abut against the movable head plate, and the movable head plate can be squeezed or relaxed by the expansion and contraction of the locking and telescopic device, when the movable head plate is squeezed, two adjacent tooth-shaped plates are close to each other, the filter cloth plays a filtering role, and the filtered waste residue is stored in the groove of the tooth-shaped plate, and the filtrate is discharged from the filter device through the drain port, and when the movable head plate is relaxed, the two adjacent tooth-shaped plates are separated, and the waste residue falls into the waste trough.

[0018] Compared with the prior art, the present invention has achieved the following technical effects:

[0019] The primary reaction chamber of the present invention is provided with a stock liquid inlet, an exhaust gas outlet and a primary outlet, the interior of the primary reaction chamber is provided with an injection device, the stock liquid inlet is arranged on the side of the primary reaction chamber for passing the raw material liquid, the injection device is used to inject the reactant, the exhaust gas outlet is arranged on the upper part of the primary reaction chamber for the gas generated by the reaction to be discharged, the primary outlet is used to supply the solution after the reaction to flow out, the ultrasonic enhancement device is connected to the primary reaction chamber, and is used to create a reaction environment in which the chemical reaction in the primary reaction chamber can be carried out. The injection device can inject the reactant into the raw material liquid at a certain speed and pressure, so that the reactant can be more evenly dispersed when entering the raw material liquid, and the contact area with the raw material liquid when entering the raw material liquid is larger, the setting of the ultrasonic enhancement device creates a reaction environment suitable for the chemical reaction to be carried out in the primary reaction chamber, ultrasonic enhancement can accelerate the rate of the chemical reaction, improve the conversion rate of the reaction, and may also trigger some reactions that are difficult to carry out under conventional conditions, expand the possibility of the reaction, the injection device and the ultrasonic enhancement device work together, so that the primary reaction chamber can efficiently carry out the chemical reaction, realize the rapid conversion of the raw material liquid, and can timely discharge the exhaust gas and output the solution after the reaction, improve production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 Schematic diagram of the structure of a device for removing organic matter in solution in some embodiments of the present invention;

[0022] Figure 2 Schematic diagram of a control panel of a device for removing organic matter in solution in some embodiments of the present invention.

[0023] In the figure: 1-inlet pipe, 2-motor, 3-centrifugal pump, 4-ventilation pipe, 5-jet vacuum pump, 6-tail pipe, 7-spiral blade, 8-ultrasonic probe, 9-amplifier, 10-ultrasonic cavity, 11-vibrator, 12-insulation layer, 13-housing, 14-conveyor belt surface, 15-primary reaction chamber, 16-rotating shaft motor, 17-filter plate, 18-waste residue storage chamber, 19-scraper, 20-scraper shaft, 21-filtrate outlet, 22-raw liquid inlet, 23-rotating shaft, 24-liquid discharge port, 25-volume sensor, 26-waste gas outlet, 27-waste gas collection chamber, 28-activated carbon filter, 29-water pump, 30-solution inlet, 31-secondary reaction chamber, 32-stirring motor, 33-stirring shaft, 34-stirring paddle, 35-filter aid inlet pipe, 36-check valve, 37-throttle valve, 38-gas inlet and outlet, 39-locking telescopic device, 40-moving head plate, 41-filter cloth, 42-cage, 43-waste trough, 44-pallet frame, 45-control panel, 46-first temperature display instrument, 47-power display instrument, 48-flow display instrument, 49-second temperature display instrument, 50-filtration rate display instrument, 51-first speed display instrument, 52-second speed display instrument, 53-ultrasonic strengthening device switch, 54-ultrasonic strengthening device indicator light, 55-frequency adjustment knob, 56-injection device switch, 57-injection device indicator light, 58-first gas control button, 59-first liquid control button, 60-filter press switch, 61-filter press indicator light, 62-second gas control button, 63-second liquid control button, 64-locking telescopic device button, 65-slag removal device switch, 66-slag removal device indicator light, 67-first speed adjustment knob, 68-stirring device switch, 69-stirring device indicator light, 70-second speed adjustment knob, 71-transport shaft, 72-conveyor belt. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The purpose of the present invention is to provide a device for removing organic matter in a solution to solve the problems existing in the prior art, and to be able to quickly and efficiently treat organic matter in a solution with good treatment effect.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1-Figure 2 As shown, the present invention provides an organic matter removal device in a solution, comprising a primary reaction chamber 15 and an ultrasonic enhancement device. The primary reaction chamber 15 is provided with a raw liquid inlet 22, a waste gas outlet 26 and a primary outlet. An injection device is provided inside the primary reaction chamber 15. The raw liquid inlet 22 is provided on the side of the primary reaction chamber 15 for introducing raw liquid, the injection device is used to inject reactants, and the waste gas outlet 26 is provided at the upper part of the primary reaction chamber 15 for discharging gas generated by the reaction. The raw liquid inlet 22 is provided at the side, which facilitates the stable introduction of raw liquid and does not interfere with other components in the reaction chamber; the waste gas outlet 26 is located at the upper part, which can allow the gas generated by the reaction to rise naturally and be discharged smoothly, thereby avoiding the accumulation of gas in the reaction chamber and affecting the reaction process. The waste gas enters the waste gas collection chamber 27 after passing through the waste gas outlet 26 and is discharged after passing through the activated carbon filter 28. The primary outlet is used for the solution after the reaction to flow out. The ultrasonic enhancement device is connected to the primary reaction chamber 15 and is used to create a reaction environment in which the chemical reaction in the primary reaction chamber 15 can proceed. The injection device can inject the reactant into the raw material liquid at a certain speed and pressure, so that the reactant can be dispersed more evenly when entering the raw material liquid, and the contact area with the raw material liquid is larger when entering the raw material liquid. The connection of the ultrasonic enhancement device creates a reaction environment suitable for the chemical reaction for the primary reaction chamber 15. Ultrasonic enhancement can accelerate the rate of chemical reaction and improve the conversion rate of the reaction. At the same time, it may also trigger some reactions that are difficult to carry out under conventional conditions, expanding the possibility of the reaction. The injection device and the ultrasonic enhancement device work together to enable the primary reaction chamber 15 to carry out chemical reactions efficiently, realize rapid conversion of the raw material liquid, and be able to discharge waste gas and output the post-reaction solution in time, thereby improving production efficiency and product quality.

[0028] It should be noted that there can be multiple primary reaction chambers 15 connected in sequence to ensure a more complete reaction of the raw material liquid.

[0029] In some embodiments, the ultrasonic enhancement device includes an ultrasonic transducer and a shell 13, the shell 13 is wrapped around the outside of the ultrasonic transducer, the ultrasonic transducer is arranged below the primary reaction chamber 15, and includes a vibrator 11, a horn 9 and an ultrasonic probe 8, the ultrasonic probe 8 is arranged inside the ultrasonic cavity 10, the top of the ultrasonic probe 8 is connected to the bottom end of the primary reaction chamber 15, the bottom end is connected to the top end of the horn 9, the bottom end of the horn 9 is connected to the vibrator 11, the vibrator 11 is used to generate mechanical vibration, the horn 9 is used to amplify the mechanical vibration and transmit it to the ultrasonic probe 8, and the ultrasonic probe 8 is used to transmit the amplified mechanical vibration to the primary reaction chamber 15.

[0030] The structural design of the ultrasonic transducer is conducive to efficiently transmitting the mechanical vibration generated by the vibrator 11 to the primary reaction chamber 15. The vibrator 11, as a vibration source, can generate stable mechanical vibrations. The presence of the horn 9 can amplify this mechanical vibration to ensure that sufficient energy is transmitted. For example, in some chemical reactions, ultrasonic energy of sufficient intensity is required to trigger or accelerate the reaction. The horn 9 is equivalent to an "energy amplifier", which enables the ultrasonic probe 8 to receive a sufficiently strong vibration signal and then transmit it to the primary reaction chamber 15, thereby providing effective energy input for the reaction. The ultrasonic probe 8 is directly connected to the bottom end of the primary reaction chamber 15 to ensure that the energy can directly act on the reaction system inside the primary reaction chamber 15. The direct connection reduces the energy loss during the transmission process, so that the ultrasonic energy can be efficiently used for catalytic reactions.

[0031] In some embodiments, the device for removing organic matter from solution further includes an insulating layer 12. The upper layer of the insulating layer 12 is connected to the bottom surface of the primary reaction chamber 15, and the lower layer is connected to the ultrasonic probe 8. The insulating layer 12 can slow down heat exchange between the ultrasonic probe 8 and the external environment, reducing the impact of temperature changes on the performance of the ultrasonic probe 8. This allows the ultrasonic probe 8 to operate under relatively stable temperature conditions, thereby ensuring the accuracy and stability of ultrasonic signal transmission and reception.

[0032] In some embodiments, the injection device includes a motor 2 and an inlet pipe 1, a centrifugal pump 3, a vent pipe 4, a jet vacuum pump 5, and a tail pipe 6 connected in sequence. The motor 2 is connected to the centrifugal pump 3 and is used to drive the centrifugal pump 3. The inlet pipe 1 is used to supply reactants. The reactants pass through the centrifugal pump 3 and the vent pipe 4 and enter the jet vacuum pump 5. After being processed by the jet vacuum pump 5, the reactants are ejected as a jet through the tail pipe 6. The motor has characteristics such as precise control of speed, and the working state of the centrifugal pump 3 can be flexibly adjusted according to specific reaction requirements, thereby accurately controlling parameters such as the injection flow rate and pressure of the reactants. The high-speed jet enables the reactants to quickly penetrate the reaction solution after entering the reaction chamber, reaching different depths and regions of the reaction system, ensuring sufficient contact between the reactants and the reaction solution. The reactants in the jet form have good dispersibility and can be evenly dispersed in the reaction solution, avoiding problems such as side reactions that may be caused by excessive local concentration of the reactants, thereby improving the uniformity and efficiency of the reaction.

[0033] In some embodiments, a spiral blade device 7 is further provided at the end of the tail pipe 6. The spiral blade device 7 is used to cyclone the reactant in the form of a jet, so that the reactant enters the primary reaction chamber 15 in a cyclonic manner. The reactant can generally be an oxide gas, a catalyst, or sodium oxalate seed crystals. After passing through the jet vacuum pump 5, the reactant is no longer a single-directional straight jet when entering the primary reaction chamber, but forms a rotating airflow in three-dimensional space. The cyclonic motion makes the distribution of the reactant in the reaction chamber more extensive and dispersed, and each tiny reactant particle has more opportunities to contact the surrounding reaction liquid during the rotation process. Taking a chemical reaction involving gas as an example, when the gas reactant enters the reaction chamber in a cyclonic manner, the gas molecules, driven by the rotating airflow, will be more widely dispersed in all layers of the reaction liquid, greatly increasing the contact area with the liquid reactant or other reactants. Then, according to the principles of chemical reaction kinetics, more opportunities for collisions between reactant molecules are increased, which helps to increase the reaction rate.

[0034] In some embodiments, the device for removing organic matter in the solution also includes a slag removal device, which is arranged in the primary reaction chamber 15 and is used to remove waste residue produced after the reactant reacts with the raw material liquid. The slag removal device includes a rotating shaft 23, a rotating shaft motor 16 and a scraper 19. The rotating shaft is arranged along the height direction of the primary reaction chamber 15. The output shaft of the rotating shaft motor 16 is connected to the first end of the rotating shaft 23 for driving the rotating shaft 23 to rotate. The second end of the rotating shaft 23 is fixedly connected to the scraper 19. The scraper 19 is arranged at the bottom of the primary reaction chamber 15 for scraping off waste residue. The scraper 19 is preferably made of rubber or silicone and is arranged on the scraper shaft 20. The scraper shaft 20 is arranged at the bottom of the primary reaction chamber 15 and is fixedly connected to the rotating shaft. A conveyor belt 72 is provided at the bottom of the scraper 19, and the conveyor belt surface 14 of the conveyor belt 72 is a permeable material. A filter plate 17 is provided under the conveyor belt 72. The filter plate 17 is used for reflux of the liquid after the reaction. After passing through the filter plate 17, the liquid flows back to the original liquid inlet 22 through the filtrate outlet 21 to participate in the reaction. In addition, a waste residue holding chamber 18 is provided on the side of the rotating shaft away from the primary reaction chamber 15. The bottom of the waste residue holding chamber 18 is connected with the bottom of the primary reaction chamber 15. The scraper 19 can extend to the waste residue holding tank to scrape the waste residue into the waste residue holding chamber 18. This design makes it possible to conveniently transport the waste residue scraped by the scraper 19 to the waste residue holding chamber 18 for centralized collection. After the scraper 19 scrapes up the waste residue, the waste residue can directly enter the waste residue holding chamber 18 along the movement direction of the scraper 19. There is no need for additional complicated transfer procedures, which simplifies the waste residue treatment process and facilitates the subsequent unified treatment and disposal of the waste residue. Finally, the waste residue is continuously transported back to the waste residue pile in the waste residue storage chamber 18 by the conveyor belt 72 driven by the rotating transport shaft 71 for processing and recycling, thereby avoiding waste residue accumulation causing equipment operation obstruction.

[0035] In some embodiments, a volume sensor 25 is also arranged in the primary reaction chamber 15. The volume sensor 25 is used to sense the volume of the waste residue and transmit an electrical signal to the control system, which controls the operation of the shaft motor 16. The volume sensor 25 can accurately sense the volume of the waste residue in the primary reaction chamber 15. During the organic matter removal reaction, the amount of waste residue produced will change as the reaction progresses. The volume sensor 25 can capture these changes in real time and provide accurate waste residue volume data. After receiving the electrical signal from the volume sensor 25, the control system can control the operation of the shaft motor 16 according to the preset waste residue volume threshold. When the waste residue volume reaches or exceeds the set threshold, the control system starts the shaft motor 16 to drive the scraper 19 to perform residue removal operation, avoiding unnecessary frequent residue removal, saving energy consumption, and reducing unnecessary wear and tear of the residue removal device components.

[0036] In some embodiments, the organic matter removal device in the solution also includes a secondary reaction chamber 31. The secondary reaction chamber 31 is provided with a solution inlet 30, a liquid outlet 24, and a gas inlet and outlet 38. The solution inlet 30 is connected to the primary outlet through a water pump 29, which can pump the liquid in the primary reaction chamber 15 to the secondary reaction chamber 31. The liquid outlet 24 is arranged at the bottom of the secondary reaction chamber 31 and is used to discharge the treated solution. The gas inlet and outlet 38 is arranged at the side of the secondary reaction chamber 31 and is connected with a throttle valve 37 to control the gas discharge speed. The secondary reaction chamber 31 is internally provided with a stirring device and a filtering device. The solution after the reaction in the primary reaction chamber 15 enters the stirring device through the solution inlet 30. The stirring device is used to stir the solution. The stirred solution enters the filtering device for filtering treatment. The gas inlet and outlet 38 is used to introduce or discharge air into the filtering device. When air is introduced, the filter cloth 41 is pressed by air to enhance the filtering effect. When air is discharged, the filter cloth 41 is relatively loose.

[0037] The secondary reaction chamber 31 provides a space for further treatment of the solution after the reaction in the primary reaction chamber 15. Although some organic matter or other impurities may still need to be further treated in the primary reaction, the secondary reaction chamber 31 can further treat the solution through the cooperation of the stirring device and the filtering device, thereby improving the overall effect of organic matter removal and ensuring that the finally discharged solution meets higher quality standards. The stirring device can mix various components in the solution thoroughly, breaking the concentration gradient that may exist, and ensuring that the solution is in a uniform state before subsequent filtering treatment. The filtering device can filter the uniformly stirred solution to effectively remove residual organic matter, fine particle impurities, etc. in the solution. By selecting appropriate filtering materials and filtering precision, the filtering device can selectively intercept impurities of different sizes and properties, ensuring that the discharged solution is more pure.

[0038] In some embodiments, the stirring device includes a stirring shaft 33, a stirring paddle 34 and a stirring motor 32. The output shaft of the stirring motor 32 is fixedly connected to one end of the stirring shaft 33, and the other end of the stirring shaft 33 is fixedly connected to the stirring paddle 34. The stirring paddle 34 is used to stir the solution, and during stirring, the filter aid will enter the stirring device through the filter aid inlet pipe 35 and the one-way valve 36 arranged on the side of the secondary reaction chamber 31 in sequence. The one-way valve 36 only allows the filter aid to enter the stirring device in a predetermined direction to prevent the solution from flowing back into the filter aid inlet pipe 35, thereby ensuring the unidirectionality and stability of the filter aid addition process and avoiding problems that may be caused by solution backflow. The filter aid can be selected from aluminum ash active dissolution slag or lime milk. The stirring paddle 34 can accelerate the secondary reaction of the filter aid and the solution. By rotating the water flow, the water flow rate of the solution inlet 30 can be buffered to ensure the reaction effect.

[0039] In some embodiments, the filtering device includes a card plate 42, a waste trough 43, a filter cloth 41, a movable head plate 40 and a locking and telescopic device 39. The card plate 42 includes a plurality of tooth-shaped plates arranged relative to each other and is vertically arranged through a card plate frame 44. The filter cloth 41 is arranged between the two tooth-shaped plates. The waste trough 43 is arranged at the lower part of the card plate 42 for receiving slag. The movable head plate 40 is slidably arranged on a fixed column. The fixed column is perpendicular to the card plate. The locking and telescopic device 39 is arranged on the fixed column and can abut against the movable head plate 40. The movable head plate 40 can be squeezed or relaxed by the expansion and contraction of the locking and telescopic device 39. When the movable head plate 40 is squeezed, the two adjacent tooth-shaped plates are close to each other, and the filter cloth 41 plays a filtering role. The filtered waste residue is stored in the groove of the tooth-shaped plate, and the filtrate is discharged from the filtering device through the drain port 24. When the movable head plate 40 is relaxed, the two adjacent tooth-shaped plates are separated, and the waste residue falls into the waste trough 43.

[0040] The filter cloth 41 is positioned between two toothed plates. When the movable head plate 40 is squeezed, the adjacent toothed plates move closer together, placing the filter cloth 41 in a tensioned state and effectively filtering the solution. The filter cloth 41 can be selected from an appropriate material and pore size as needed to precisely intercept impurities such as waste residue and organic particles in the solution, ensuring that the filtrate exits the filtration device with relatively pure purity. This extrusion of the filter cloth 41 ensures reliable and stable filtration, adapting to the filtration needs of solutions with varying properties and impurity levels.

[0041] By expanding or contracting the locking and telescopic mechanism 39 to squeeze or loosen the movable head plate 40, the distance between adjacent toothed plates can be flexibly controlled, thereby varying the pressure on the filter cloth 41. When more precise filtration is required, the locking and telescopic mechanism 39 can be increased, allowing the toothed plates to more tightly press against the filter cloth 41, improving the filter cloth's ability to intercept impurities. When filtration accuracy is less demanding but improved filtration throughput is desired, the movable head plate 40 can be appropriately loosened, allowing the distance between the toothed plates to increase slightly, allowing the solution to pass through the filter cloth 41 more smoothly. This allows for flexible adjustment of the filtration level and throughput based on actual needs. Furthermore, during the filtration process, waste residue intercepted by the filter cloth 41 is deposited in the grooves of the toothed plates. When the filtration is completed, the movable head plate 40 is relaxed, the adjacent tooth-shaped plates move away, and the waste residue will fall into the waste trough 43, which can realize the integrated process of filtration and waste residue collection without the need for additional complicated waste residue transfer operations. It can not only improve work efficiency, but also ensure that the waste residue is collected and processed in a centralized manner, which is convenient for subsequent waste residue management.

[0042] The following are the specific experimental results:

[0043] Effect of no device treatment:

[0044] In this study, sodium aluminate solution (decomposition mother liquor: i.e., mother liquor after decomposition of aluminum hydroxide) was used. Table 1 shows the composition of the sodium aluminate solution. It can be seen that its original TOC content is 6.95 g / L and its original oxalate content is 1.24 g / L.

[0045] Table 1 Composition of sodium aluminate solution

[0046] project [00000 T ]] <![CDATA[N C ]]> <![CDATA[N K ]]> <![CDATA[Al2O3]]> TOC <![CDATA[C 草酸根 ]]> Concentration (g / L) 179.60 12.20 167.40 102.07 6.95 1.24

[0047] Note: αk = 2.70, NC / NT = 6.79.

[0048] The effect of ultrasonic enhancement device assisted removal:

[0049] With the reaction temperature fixed at 55°C, the effect of different ultrasonic powers on the removal of organic matter in sodium aluminate solution was first studied, as shown in Figure 2. It was found that with the increase of ultrasonic power, the organic matter content in the sodium aluminate solution showed a gradual decreasing trend.

[0050] Table 2 Relationship between ultrasonic power and organic matter removal

[0051] Power, KW 0 8 18 24 36 TOC, g / L 6.46 3.76 3.52 3.35 3.16 Sodium oxalate, g / L 1.24 0.69 0.56 0.48 0.41

[0052] When the ultrasonic power was 0 kW, the TOC and sodium oxalate concentrations in the sodium aluminate solution changed slightly. After the addition of ultrasound, the cavitation effect rapidly accelerated the reaction process, and the changes subsequently became more gradual. The TOC concentration decreased from the original 6.95 g / L to 3.16 g / L, and the sodium oxalate concentration decreased from 1.24 g / L before crystallization to 0.41 g / L after crystallization.

[0053] Effect of jet device assisted degradation:

[0054] When the reaction temperature was fixed at 55°C and the ultrasonic power was 0 kW, the effects of different jet flow rates on the degradation of organic matter in the sodium aluminate solution were studied, as shown in Figure 3. It was found that with the increase of the jet flow rate, the organic matter content in the sodium aluminate solution showed a gradual decreasing trend.

[0055] Table 3 Relationship between jet flow rate and organic matter removal

[0056] <![CDATA[流量,m 3 / h]]> 0 22000 23000 24000 25000 TOC, g / L 6.46 4.22 4.03 3.87 3.76 Sodium oxalate, g / L 1.24 0.75 0.64 0.58 0.52

[0057] When the jet flow rate is 0m 3 / h, the concentrations of TOC and sodium oxalate were the same as when the ultrasonic power was 0 kW. As the flow rate increased, the concentrations of TOC and sodium oxalate in the sodium aluminate solution gradually decreased, with the TOC concentration dropping from the original 6.95 g / L to 3.76 g / L, and the sodium oxalate concentration dropping from the original 0.69 g / L to 0.52 g / L.

[0058] Effects of the combined ultrasonic enhancement device and jet device:

[0059] When the reaction temperature is fixed at 55°C and the ultrasonic power is 8KW, the effect of different jet flow rates on the removal of organic matter in the sodium aluminate solution is studied, as shown in Figure 4. It is found that with the increase of the jet flow rate, the organic matter in the sodium aluminate solution shows a gradual decreasing trend.

[0060] Table 4 Relationship between jet flow rate and organic matter removal

[0061] <![CDATA[流量,m 3 / h]]> 0 22000 23000 24000 25000 TOC, g / L 3.76 3.32 3.01 2.72 1.69 Sodium oxalate, g / L 0.69 0.45 0.42 0.4 0.13

[0062] When the jet flow rate is 0m 3 / h, the concentrations of TOC and sodium oxalate were the same as when the ultrasonic power was 8KW. As the flow rate increased, the concentrations of TOC and sodium oxalate in the sodium aluminate solution gradually decreased, with the TOC concentration decreasing from the original 3.76g / L to 1.69g / L, and the sodium oxalate concentration decreasing from the original 0.69g / L to 0.13g / L.

[0063] like Figure 2As shown, the control panel 45 of the device for removing organic matter in the solution includes a first temperature display instrument 46, a power display instrument 47, a flow display instrument 48, a second temperature display instrument 49, a filtration rate display instrument 50, a first speed display instrument 51, and a second speed display instrument 52. The power display instrument 47 is set above the first temperature display instrument 46. The power display instrument 47 is used to display the power of the ultrasonic enhancement device, which is generally controlled to 36KW. The first temperature display instrument 46 is used to display the ultrasonic temperature of the ultrasonic enhancement device, which is generally controlled to be 50-100°C. The second temperature display instrument 49 is set to the right side of the power display instrument 47 and is used to display the temperature of the jet reactant injected by the injection device, which is generally controlled to be 30-50°C. The flow display instrument 48 is set on the lower side of the second temperature display instrument 49 and is used to display the injection gas volume of the jet injected by the injection device, which is generally controlled to be 22000~25000m 3 / h, the filtration rate display meter 50 is arranged on the right side of the second temperature display meter 49, and is used to display the filtration rate of the filtration device, which is generally set to 60kg / h. The first speed display meter 51 and the second speed display meter 52 are arranged side by side below the filtration rate display meter 50. The first speed display meter 51 is used to display the speed of the scraper, and the scraper is set to rotate clockwise at a speed of 30 to 60r / min. The second speed display meter 52 is used to display the speed of the stirring paddle, and the stirring paddle is set to rotate clockwise at a speed of 60 to 120r / min.

[0064] The control panel 45 is also provided with an ultrasonic strengthening device switch 53, an ultrasonic strengthening device frequency adjustment knob 55, an injection device switch 56, a filter press switch 60, a slag removal device switch 65, a first speed adjustment knob 67, a stirring device switch 68, and a second speed adjustment knob 70, which are arranged in sequence from left to right. The ultrasonic strengthening device switch 53 is used to control the opening and closing of the ultrasonic strengthening device, the ultrasonic strengthening device frequency adjustment knob 55 is used to adjust the operating frequency of the ultrasonic strengthening device, the injection device switch 56 is used to control the opening and closing of the injection device, the filter press switch 60 is used to control the opening and closing of the locking and telescopic device, the slag removal device switch 65 is used to control the opening and closing of the slag removal device, and the first speed adjustment knob 67 is used to adjust the scraping speed. The rotational speed of the plate is the rotational speed of the shaft motor, the stirring device switch 68 is used to control the opening and closing of the stirring device, the second speed adjustment knob 70 is used to adjust the rotational speed of the stirring paddle, that is, the rotational speed of the stirring motor, and the ultrasonic strengthening device indicator light 54, the injection device indicator light 57, the filter press indicator light 61, the slag removal device indicator light 66 and the stirring device indicator light 69 are arranged from left to right in the lower row. The ultrasonic strengthening device indicator light 54 is used to display the operating status of the ultrasonic strengthening device, the injection device indicator light 57 is used to display the operating status of the injection device, the filter press indicator light 61 is used to display the operating status of the locking and telescopic device, the slag removal device indicator light 66 is used to display the operating status of the slag removal device, and the stirring device indicator light 69 is used to display the operating status of the stirring device.

[0065] Between the injection device switch 56 and the filter press switch 60, a first gas control button 58 and a first liquid control button 59 are sequentially positioned from top to bottom. The first gas control button 58 is used to control the injection of gaseous reactants, while the first liquid control button 59 is used to control the injection of liquid reactants. Between the filter press switch 60 and the slag removal device switch 65, a second gas control button 62, a second liquid control button 63, and a locking and retracting device button 64 are sequentially positioned from top to bottom. The second gas control button 62 controls the flow of air into and out of the gas inlet and outlet 38. When air is introduced, the filter cloth is compressed by the gas, enhancing the filtration effect. When air is exhausted, the filter cloth becomes looser. The second liquid control button 63 controls whether filter aid can enter the secondary reaction chamber through the filter aid inlet pipe 35. The locking and retracting device button 64 controls the degree of tightening of the locking and retracting device.

[0066] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A device for removing organic matter from a solution, characterized in that: include A primary reaction chamber is provided with a raw liquid inlet, an exhaust gas outlet and a primary outlet. An injection device is provided inside the primary reaction chamber. The raw liquid inlet is used to introduce the raw liquid, the injection device is used to inject the reactant, the exhaust gas outlet is used to discharge the gas generated by the reaction, and the primary outlet is used to allow the solution after the reaction to flow out; An ultrasonic enhancement device, connected to the primary reaction chamber, for creating a reaction environment in the primary reaction chamber in which a chemical reaction can proceed; A secondary reaction chamber is provided with a solution inlet, a liquid discharge port and a gas inlet and outlet. The solution inlet is communicated with the primary outlet. The liquid discharge port is provided at the bottom of the secondary reaction chamber for discharging the solution after treatment. The gas inlet and outlet are provided on the side of the secondary reaction chamber. A stirring device and a filtering device are provided inside the secondary reaction chamber. The solution after the reaction in the primary reaction chamber enters the stirring device through the solution inlet. The stirring device is used to stir the solution. The solution after stirring enters the filtering device. The filtering device is used to filter the solution. The gas inlet and outlet are used to introduce or exhaust air into the filtering device. The filtering device includes a card plate, a waste tank, a filter cloth, a movable head plate and a locking and telescopic device. The card plate includes a plurality of tooth-shaped plates arranged relative to each other, and the tooth-shaped plates are arranged vertically, the filter cloth is arranged between the two tooth-shaped plates, the waste trough is arranged at the lower part of the card plate for receiving slag, the movable head plate is slidably arranged on the fixed column, and the fixed column is perpendicular to the card plate, the locking and telescopic device is arranged on the fixed column and can abut against the movable head plate, and the movable head plate can be squeezed or relaxed by the telescopic locking device. When the movable head plate is squeezed, two adjacent tooth-shaped plates are close to each other, and the filter cloth plays a filtering role. The filtered waste residue is stored in the groove of the tooth-shaped plate, and the filtrate is discharged from the filter device through the drain port. When the movable head plate is relaxed, the two adjacent tooth-shaped plates are separated, and the waste residue falls into the waste trough.

2. The device for removing organic matter from solution according to claim 1, characterized in that: The ultrasonic enhancement device includes an ultrasonic transducer and a shell, the shell is wrapped around the outside of the ultrasonic transducer, the ultrasonic transducer is arranged below the primary reaction chamber, and includes a vibrator, a horn and an ultrasonic probe, the top end of the ultrasonic probe is connected to the bottom end of the primary reaction chamber, the bottom end is connected to the top end of the horn, the bottom end of the horn is connected to the vibrator, the vibrator is used to generate mechanical vibration, the horn is used to amplify the mechanical vibration and transmit it to the ultrasonic probe, and the ultrasonic probe is used to transmit the amplified mechanical vibration to the primary reaction chamber.

3. The device for removing organic matter from solution according to claim 2, characterized in that: It also includes a heat-insulating layer, wherein the upper layer of the heat-insulating layer is connected to the bottom surface of the primary reaction chamber, and the lower layer is connected to the ultrasonic probe.

4. The device for removing organic matter from solution according to claim 1, characterized in that: The injection device includes a motor and an inlet pipe, a centrifugal pump, a vent pipe, a jet vacuum pump and a tail pipe connected in sequence. The motor is connected to the centrifugal pump, and the motor is used to drive the centrifugal pump. The inlet pipe is used to allow the reactant to flow in. The reactant enters the jet vacuum pump after passing through the centrifugal pump and the vent pipe. After the jet vacuum pump processes the reactant, it sprays the reactant in the form of a jet through the tail pipe.

5. The device for removing organic matter from solution according to claim 4, characterized in that: The tail pipe end is further provided with a spiral blade device, which is used to cyclone the reactant in the jet form so that the reactant enters the primary reaction chamber in a cyclonic manner.

6. The device for removing organic matter from solution according to claim 1, characterized in that: The slag removal device is arranged in the primary reaction chamber and is used to remove the waste residue produced after the reactant and the raw material liquid react. The slag removal device includes a rotating shaft, a rotating shaft motor and a scraper. The rotating shaft is arranged along the height direction of the primary reaction chamber. The output shaft of the rotating shaft motor is connected to the first end of the rotating shaft for driving the rotating shaft to rotate. The second end of the rotating shaft is fixedly connected to the scraper. The scraper is arranged at the bottom of the primary reaction chamber and is used to scrape off the waste residue. A filter plate is provided at the bottom of the scraper. The filter plate is used for reflux of the liquid after the reaction. A waste residue holding chamber is also provided on the side of the rotating shaft away from the primary reaction chamber. The bottom of the waste residue holding chamber is connected to the bottom of the primary reaction chamber. The scraper can extend to the waste residue holding tank and can scrape the waste residue into the waste residue holding chamber.

7. The device for removing organic matter from solution according to claim 6, characterized in that: A volume sensor is also provided in the primary reaction chamber, and is used to sense the volume of the waste residue and transmit an electrical signal to a control system, and the control system controls the operation of the rotating shaft motor.

8. The device for removing organic matter from solution according to claim 1, characterized in that: The stirring device includes a stirring shaft, a stirring paddle and a stirring motor, wherein the output shaft of the stirring motor is fixedly connected to one end of the stirring shaft, and the other end of the stirring shaft is fixedly connected to the stirring paddle, and the stirring paddle is used to stir the solution; The secondary reaction chamber is also provided with a filter aid inlet pipe for adding filter aid, and the filter aid inlet pipe is provided with a one-way valve.

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