A zeolite adsorption treatment device for removing strontium and cesium
By combining a variable-aperture zeolite rotor with a biosorbent, the problem of insufficient efficiency and selectivity of existing zeolite adsorption equipment in the treatment of radioactive wastewater with high concentration or complex composition is solved, and low-energy and high-efficiency radioactive wastewater treatment is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2026-04-03
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Figure CN118702201B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of organic wastewater purification technology, specifically to a zeolite adsorption treatment device for removing strontium and cesium. Background Technology
[0002] With the rapid development of nuclear industry, medical and scientific research fields, the treatment of radioactive wastewater has become an urgent environmental problem. Among these, strontium (Sr) and cesium (Cs), as common radionuclides, require particularly efficient removal technologies. Zeolite, as a natural mineral, is widely used in the treatment of radioactive wastewater due to its excellent adsorption properties and ion exchange capacity. However, existing zeolite adsorption treatment equipment still has many shortcomings in terms of treatment efficiency, regeneration energy consumption, and operating costs.
[0003] First, traditional zeolite adsorption equipment mostly uses high-temperature desorption to regenerate zeolite. This method is energy-intensive, involves complex equipment, and requires harsh operating conditions, increasing treatment costs. Furthermore, the adsorption performance of existing zeolite materials is limited, especially when treating radioactive wastewater with high concentrations or complex compositions; their adsorption efficiency and selectivity often fail to meet practical requirements. This is mainly because the specific surface area and pore size distribution of zeolite materials are relatively fixed, making it difficult to adapt to different types and concentrations of radioactive ions, thus limiting their adsorption efficiency for strontium and cesium. Summary of the Invention
[0004] The purpose of this invention is to provide a zeolite adsorption treatment device for removing strontium and cesium, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A zeolite adsorption treatment device for removing strontium and cesium, comprising:
[0007] A zeolite rotor is used to adsorb and purify wastewater. The drain end of the zeolite rotor is provided with a drain channel for discharging the wastewater purified by the zeolite rotor. The inner cavity of the zeolite rotor is provided with a first zeolite plate and a second zeolite plate, and the first zeolite plate is movably connected to the inner cavity of the zeolite rotor.
[0008] A pretreatment chamber, located on one side of the zeolite rotor, is used to pretreat wastewater before it enters the zeolite rotor. The pretreatment chamber is equipped with a dry filter, which divides the chamber into a mixing chamber and a sedimentation chamber. After entering the sedimentation chamber, the wastewater is filtered by the dry filter. In the mixing chamber, a top chamber is located at the top of the pretreatment chamber, and an adjustment chamber is located inside the top chamber. The adjustment chamber contains acidic and alkaline substances, and two metering pumps are connected to its bottom. A pH sensor for detecting the acidity or alkalinity of the wastewater is also installed on the inner wall of the mixing chamber.
[0009] The cleaning device is located on one side of the zeolite rotor. The cleaning device includes a pressure chamber, the inner cavity of which is filled with sodium chloride solution.
[0010] Preferably, a plunger is provided at one end of the pressure chamber, and a cylinder is provided at one end of the plunger. The cylinder can drive the plunger to move back and forth along the inner cavity of the pressure chamber. A throttling pipe is provided at the other end of the pressure chamber. A guide pipe is provided on each side of the throttling pipe. A nozzle is provided at one end of the guide pipe. The surface of the nozzle is provided with a rinsing hole facing the zeolite rotor. A water supply pipe is provided on one side of the pressure chamber.
[0011] Preferably, the outer side of the zeolite rotor is provided with a belt groove, the inner wall of the belt groove is provided with a belt strip, one end of the inner wall of the belt strip is provided with a pulley, and one side of the pulley is provided with a servo motor.
[0012] Preferably, the inner cavity of the throttling tube is provided with a fixing seat, a first spring is provided on one side of the fixing seat, a valve column is fixedly connected to one end of the first spring, a drain hole is opened on both sides of the throttling tube, and the outer side of the valve column is transitionally fitted with the inner cavity of the throttling tube.
[0013] Preferably, the filter pores of the first and second zeolite plates are provided with a bioadsorbent that has a high selectivity and affinity for radioactive elements such as strontium and cesium.
[0014] Preferably, the inner wall of the water supply pipe is provided with a fixing ring, a second spring is provided on one side of the fixing ring, a valve ring is fixedly connected to one end of the second spring, and a water suction hole is opened on one side of the water supply pipe at the corresponding position of the valve ring.
[0015] Preferably, a gear ring is provided on the outer side of the first zeolite plate, a stepper motor is provided above the zeolite wheel, a drive shaft is fixedly connected to the output end of the stepper motor, a drive gear is fixedly connected to one end of the drive shaft, and the outer edge of the drive gear meshes with the outer edge of the gear ring.
[0016] Preferably, a drying fan is provided on the other side of the zeolite rotor, and the air outlet of the drying fan is facing the surface of the zeolite rotor to blow hot air onto the zeolite rotor to accelerate its drying process. The drying fan is capable of blowing air with a temperature range of 40-80°C.
[0017] Preferably, the inner cavity of the top chamber is further provided with a coagulation chamber, which is located directly above the sedimentation chamber and contains a coagulant. A sludge pump is provided on one side of the pretreatment chamber, and one end of the sludge pump is connected to the bottom of the inner cavity of the sedimentation chamber.
[0018] Preferably, a controller is also provided on one side of the zeolite rotor between the drainage channel and the drying fan. The controller is connected to the pH sensor and is used to receive and process the electrical signal emitted by the pH sensor. The controller can also start the metering pump to quantitatively discharge acidic or alkaline substances in the regulating chamber into the blending chamber.
[0019] Compared with the prior art, the beneficial effects of the present invention are:
[0020] 1. In this invention, the zeolite rotor is rinsed with sodium chloride solution. When the fluid containing sodium chloride solution passes through the zeolite bed, the sodium ions in the solution react with the strontium ions and cesium ions adsorbed on the zeolite surface, thereby replacing the traditional high-temperature desorption method for zeolite regeneration. This not only significantly reduces energy consumption but also simplifies the regeneration process, reduces the need for complex equipment and operating conditions, and solves the problems of high energy consumption and high cost of existing equipment for regeneration.
[0021] 2. In this invention, the variable aperture zeolite rotor enables the invention to flexibly cope with radioactive wastewater of different concentrations and types, enhancing the adaptability and flexibility of the equipment. Furthermore, the combination with bio-adsorbent prepared by biotechnology further enhances the selectivity of adsorption, effectively coping with high-concentration or complex radioactive wastewater and enhancing the adsorption of strontium and cesium elements by zeolite.
[0022] 3. In this invention, a pretreatment setting is added before the wastewater enters the zeolite rotor. Through steps such as sedimentation, filtration and pH adjustment, particulate matter in the wastewater is effectively removed and the pH value of the wastewater is adjusted, creating more favorable conditions for subsequent zeolite adsorption, improving the efficiency and stability of zeolite adsorption, extending the service life of zeolite, and improving the overall treatment effect of radioactive wastewater. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0024] Figure 2 For the present invention Figure 1 A schematic diagram of the overall structure of the intermediate pretreatment chamber;
[0025] Figure 3 For the present invention Figure 2 Schematic diagram of the internal structure of the pre-processing chamber;
[0026] Figure 4 For the present invention Figure 1 Schematic diagram of the zeolite rotor and cleaning device;
[0027] Figure 5 For the present invention Figure 1 Explosion-proof schematic diagram of the overall structure of the medium zeolite rotor;
[0028] Figure 6 For the present invention Figure 5 The trajectory diagram of the first and second zeolite plates in the middle;
[0029] Figure 7 For the present invention Figure 4 A schematic diagram of the overall structure of the cleaning device;
[0030] Figure 8 For the present invention Figure 7 Cross-sectional view of the throttling pipe and the water supply pipe;
[0031] In the diagram: 1. Zeolite rotor; 11. Servo motor; 12. Pulley; 13. Belt strip; 14. Belt groove; 15. First zeolite plate; 16. Second zeolite plate; 17. Gear ring; 18. Stepper motor; 181. Drive shaft; 182. Drive gear; 2. Pretreatment chamber; 21. Sludge pump; 22. Mixing chamber; 23. Dry filter; 24. Sedimentation chamber; 25. Metering pump; 26. pH sensor; 27. Top chamber; 3. Drainage channel; 4. Drying fan; 5. Controller; 6. Cleaning device; 61. Pressure chamber; 62. Plunger; 63. Cylinder; 64. Throttling pipe; 641. Fixed seat; 642. First spring; 643. Valve column; 644. Drain hole; 65. Water supply pipe; 651. Valve ring; 652. Second spring; 653. Fixed ring; 654. Water suction hole; 66. Guide pipe; 67. Nozzle. Detailed Implementation
[0032] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0033] Please see Figure 1-8 The present invention provides a technical solution:
[0034] A zeolite adsorption treatment device for removing strontium and cesium, comprising:
[0035] Zeolite rotor 1 is used to adsorb and purify wastewater. A drain channel 3 is provided at the drain end of zeolite rotor 1. The drain channel 3 is used to discharge the wastewater purified by zeolite rotor 1. A first zeolite plate 15 and a second zeolite plate 16 are provided in the inner cavity of zeolite rotor 1. The first zeolite plate 15 is movably connected to the inner cavity of zeolite rotor 1.
[0036] Pretreatment chamber 2, located on one side of zeolite rotor 1, is used to pretreat wastewater before it enters zeolite rotor 1. The inner cavity of pretreatment chamber 2 is equipped with a dry filter 23, which divides the inner cavity of pretreatment chamber 2 into two parts: a mixing chamber 22 and a sedimentation chamber 24. After the wastewater enters the sedimentation chamber 24, it is filtered by the dry filter 23. In the inner cavity of the mixing chamber 22, a top chamber 27 is provided at the top of pretreatment chamber 2. The inner cavity of the top chamber 27 is provided with an adjustment chamber. The inner cavity of the adjustment chamber is provided with acidic and alkaline substances, and two metering pumps 25 are connected to the bottom of the adjustment chamber. The inner wall of the mixing chamber 22 is also equipped with a pH sensor 26 for detecting the acidity and alkalinity of the wastewater.
[0037] The cleaning device 6 is located on one side of the zeolite rotor 1. The cleaning device 6 includes a pressure chamber 61, the inner cavity of which is filled with sodium chloride solution.
[0038] In this embodiment, please refer to Figure 7 A plunger 62 is provided at one end of the pressure chamber 61, and a cylinder 63 is provided at one end of the plunger 62. The cylinder 63 can drive the plunger 62 to move back and forth along the inner cavity of the pressure chamber 61. A throttling pipe 64 is provided at the other end of the pressure chamber 61, and a guide pipe 66 is provided on each side of the throttling pipe 64. A nozzle 67 is provided at one end of the guide pipe 66. The surface of the nozzle 67 is provided with a rinsing hole facing the zeolite rotor 1. A water supply pipe 65 is provided on one side of the pressure chamber 61. In this embodiment, by pushing the plunger 62 forward by the cylinder 63, the water pressure in the inner cavity of the pressure chamber 61 can be increased, thereby forcing the sodium chloride solution to be sprayed out through the nozzle 67, and rinsing the zeolite rotor 1 with the high-pressure sodium chloride solution.
[0039] In this embodiment, please refer to Figure 4-5 A belt groove 14 is provided on the outer side of the zeolite rotor 1, and a belt strip 13 is provided on the inner wall of the belt groove 14. A pulley 12 is provided on the inner wall of one end of the belt strip 13, and a servo motor 11 is provided on one side of the pulley 12. In this embodiment, the servo motor 11 provides power to control the pulley 12 to rotate, which can drive the belt strip 13 to rotate the zeolite rotor 1 as a whole. Thus, when the cleaning device 6 rinses the zeolite rotor 1, the zeolite rotor 1 can be thoroughly cleaned according to the rotation of the zeolite rotor 1.
[0040] In this embodiment, please refer to Figure 7-8The inner cavity of the throttling tube 64 is provided with a fixing seat 641. A first spring 642 is provided on one side of the fixing seat 641. A valve column 643 is fixedly connected to one end of the first spring 642. A drain hole 644 is opened on both sides of the throttling tube 64. The outer side of the valve column 643 is transitionally fitted with the inner cavity of the throttling tube 64. In this embodiment, when the pressure in the inner cavity of the pressure chamber 61 returns to normal, the first spring 642 loses pressure and rebounds, causing the valve column 643 to block the drain hole 644. This can prevent liquid from entering the guide tube 66 through the drain hole 644 and prevent the sodium chloride solution in the inner cavity of the pressure chamber 61 from leaking.
[0041] In this embodiment, please refer to Figure 5-6 The filter holes of the first zeolite plate 15 and the second zeolite plate 16 are provided with bio-adsorbents that have high selectivity and affinity for radioactive elements such as strontium and cesium. In this embodiment, the bio-adsorbents include, but are not limited to, hydrated crystalline titanate silicates and metal sulfide adsorbents. These bio-adsorbents achieve efficient capture of radioactive elements such as strontium and cesium through the interaction between their specific biomolecules and radioactive ions, thereby further improving the efficiency and purification effect of wastewater treatment.
[0042] In this embodiment, please refer to Figure 8 The inner wall of the water supply pipe 65 is provided with a fixing ring 653, and a second spring 652 is provided on one side of the fixing ring 653. One end of the second spring 652 is fixedly connected to a valve ring 651. A water suction hole 654 is opened on one side of the water supply pipe 65 at the corresponding position of the valve ring 651. In this embodiment, when the water pressure in the inner cavity of the pressure chamber 61 is normal or in a high-pressure state, the valve ring 651 blocks the water suction hole 654 to prevent liquid from flowing out through the water suction hole 654. When the inner cavity of the pressure chamber 61 is in a negative pressure state, under the action of negative pressure, the valve ring 651 moves backward, and the liquid can be sucked into the inner cavity of the pressure chamber 61 through the water suction hole 654.
[0043] In this embodiment, please refer to Figure 5 A gear ring 17 is provided on the outer side of the first zeolite plate 15, and a stepper motor 18 is provided above the zeolite wheel 1. The output end of the stepper motor 18 is fixedly connected to a drive shaft 181, and one end of the drive shaft 181 is fixedly connected to a drive gear 182. The outer edge of the drive gear 182 meshes with the outer edge of the gear ring 17. In this embodiment, the stepper motor 18 controls the rotation of the drive gear 182. The drive gear 182 meshes with the gear ring 17, thereby driving the first zeolite plate 15 to rotate. When the first zeolite plate 15 rotates, the overlapping area of the adsorption holes opened on it and the adsorption holes opened on the second zeolite plate 16 changes.
[0044] In this embodiment, please refer to Figure 1A drying fan 4 is provided on the other side of the zeolite rotor 1. The air outlet of the drying fan 4 is directly facing the surface of the zeolite rotor 1 and is used to blow hot air onto the zeolite rotor 1 to accelerate its drying process. The drying fan 4 can blow air with a temperature range of 40-80℃. In this embodiment, after the zeolite rotor 1 is rinsed, a large amount of liquid will be attached to the adsorption holes of the first zeolite plate 15 and the second zeolite plate 16. The drying fan 4 can quickly dry the liquid, so that the zeolite rotor 1 can quickly treat the wastewater again.
[0045] In this embodiment, please refer to Figure 2-3 The inner cavity of the top chamber 27 is also provided with a coagulation chamber, which is located directly above the sedimentation chamber 24 and contains coagulant. A sludge pump 21 is provided on one side of the pretreatment chamber 2, and one end of the sludge pump 21 is connected to the bottom of the inner cavity of the sedimentation chamber 24. In this embodiment, by adding coagulant and causing the wastewater to settle during wastewater treatment, most of the suspended solids and colloidal substances in the wastewater can be removed in advance, reducing the burden of subsequent zeolite adsorption treatment, improving the overall treatment efficiency, and reducing the clogging and wear on the zeolite rotor.
[0046] In this embodiment, please refer to Figure 1-3 A controller 5 is also installed on one side of the zeolite rotor 1, located between the drainage channel 3 and the drying fan 4. The controller 5 is connected to the pH sensor 26 and is used to receive and process the electrical signal emitted by the pH sensor 26. The controller 5 can also start the metering pump 25 to quantitatively discharge acidic or alkaline substances from the regulating chamber to the mixing chamber 22. In this embodiment, the pH value in the wastewater is detected by the pH sensor 26, and a corresponding quantitative amount of acidic substances, including sulfuric acid, hydrochloric acid, nitric acid, etc., or alkaline substances, including sodium hydroxide, calcium hydroxide, sodium carbonate, etc., are added to the wastewater according to the preset pH value. For wastewater containing strontium and cesium, the existing form, solubility, and interaction with other substances of strontium and cesium may change under different pH conditions. Therefore, by adjusting the pH value, the treatment conditions can be optimized and the removal efficiency of strontium and cesium can be improved.
[0047] Working principle of this invention:
[0048] Step 1: The wastewater enters a pretreatment chamber 2 and then a sedimentation chamber 24. A coagulant is added to the sedimentation chamber 24 to coagulate suspended solids and colloidal particles into larger particles. The wastewater is then allowed to settle in the sedimentation chamber 24 for a period of time, allowing the coagulated particles to settle under gravity. The wastewater then passes through a dry filter 23 to filter out particulate matter. Simultaneously, a pH sensor 26 detects the acidity or alkalinity of the wastewater and generates an electrical signal, sending the result to the controller. Based on the pH value and treatment requirements, the controller opens the metering pump valve and adds appropriate amounts of acid (such as sulfuric acid or hydrochloric acid) or alkali (such as sodium hydroxide or calcium hydroxide) to neutralize the acidic or alkaline substances in the wastewater, ensuring the pH value reaches the preset range. The wastewater is then discharged to a zeolite rotor 1, where radioactive elements such as strontium and cesium in the wastewater are adsorbed. The wastewater, after being adsorbed by the zeolite rotor 1, is purified and meets discharge standards.
[0049] Step 2: A stepper motor 18 is installed to power and control the rotation of the drive shaft 181. The drive shaft 181 drives the drive gear 182 to rotate. Since the outer edge of the drive gear 182 meshes with the outer edge of the gear ring 17, the rotation of the gear ring 17 simultaneously drives the first zeolite plate 15 to rotate along the inner cavity of the zeolite wheel 1. When the first zeolite plate 15 rotates, the overlapping area of the adsorption holes on its surface and the adsorption holes on the surface of the second zeolite plate 16 changes. By precisely controlling the rotation distance of the first zeolite plate 15, the overlapping area of the adsorption holes on the surfaces of the first zeolite plate 15 and the second zeolite plate 16 can be adjusted, thereby changing the aperture of the adsorption holes in the zeolite wheel 1. This allows the zeolite wheel 1 to adapt to waste... The zeolite rotor 1 adaptively optimizes its adsorption surface area and channel structure to maximize adsorption efficiency by adapting to changes in the concentration and type of radioactive elements in water, particularly strontium and cesium. When dealing with radioactive wastewater of high concentration or complex composition, the zeolite rotor enhances the capture capacity of target ions by reducing the pore size or increasing the complexity of the adsorption surface, effectively avoiding the overload and efficiency reduction problems that may occur when traditional fixed-pore materials treat high-concentration wastewater. At the same time, by setting bioadsorbents with high selectivity and affinity for radioactive elements such as strontium and cesium in the filter pores, as well as hydrated crystalline titanate silicates and metal sulfide adsorbents, these bioadsorbents achieve efficient capture of radioactive elements such as strontium and cesium through the interaction between specific biomolecules and radioactive ions.
[0050] Step 3: Power is supplied by cylinder 63 to control plunger 62 to move forward along the inner cavity of pressure chamber 61, causing the pressure inside pressure chamber 61 to gradually increase. Since the inner cavity of pressure chamber 61 contains sodium chloride solution, when the pressure inside pressure chamber 61 increases, the valve column 643 moves forward under pressure and squeezes the first spring 642 to deform. The valve column 643 moves forward and moves away from the drain hole 644, so that the sodium chloride solution enters the guide pipe 66 through the drain hole 644. Under the action of water pressure, the sodium chloride solution is sprayed out through the spray hole of nozzle 67 to rinse the zeolite rotor 1. When the fluid containing sodium chloride solution passes through the zeolite bed, the sodium ions in the solution will undergo a competitive ion exchange reaction with the strontium ions and cesium ions adsorbed on the zeolite surface. Because the sodium chloride solution has a high ion concentration and the sodium ions have a moderate affinity for the zeolite surface, the target ions adsorbed on the zeolite surface can be effectively washed off, thereby regenerating the zeolite. When the piston 62 moves backward by the cylinder 63, a negative pressure is generated in the inner cavity of the pressure chamber 61. Under the action of the negative pressure, the valve ring 651 moves backward and squeezes the second spring 652 to deform it. The valve ring 651 moves backward away from the water suction hole 654, and the inner cavity of the pressure chamber 61 can be replenished with sodium chloride solution through the water suction hole 654.
[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. The present invention is not limited to the above embodiments; the embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. A zeolite adsorption treatment device for removing strontium and cesium, characterized in that, include Zeolite rotor (1), the zeolite rotor (1) is used to adsorb and purify wastewater, the drain end of the zeolite rotor (1) is provided with a drain channel (3), the drain channel (3) is used to discharge the wastewater purified by the zeolite rotor (1), the inner cavity of the zeolite rotor (1) is provided with a first zeolite plate (15) and a second zeolite plate (16), the first zeolite plate (15) is movably connected to the inner cavity of the zeolite rotor (1). Adsorption holes are opened on the first zeolite plate (15) and the second zeolite plate (16). When the first zeolite plate (15) rotates, the overlapping area of the adsorption holes on its surface and the adsorption holes on the surface of the second zeolite plate (16) changes. By precisely controlling the rotation distance of the first zeolite plate (15), the overlapping area of the adsorption holes on the surfaces of the first zeolite plate (15) and the second zeolite plate (16) can be adjusted, thereby changing the pore size of the adsorption holes of the zeolite rotor (1). This allows the zeolite rotor (1) to adaptively optimize its adsorption surface area and channel structure according to the changes in the concentration and type of radioactive elements in the wastewater. The pretreatment chamber (2) is located on one side of the zeolite rotor (1) and is used to pretreat the wastewater before it enters the zeolite rotor (1). The inner cavity of the pretreatment chamber (2) is equipped with a dry filter (23). The dry filter (23) divides the inner cavity of the pretreatment chamber (2) into two parts: a mixing chamber (22) and a sedimentation chamber (24). After the wastewater enters the sedimentation chamber (24), it is filtered by the dry filter (23). In the inner cavity of the mixing chamber (22), the top of the pretreatment chamber (2) is equipped with a top chamber (27). The inner cavity of the top chamber (27) is equipped with an adjustment chamber. The inner cavity of the adjustment chamber is equipped with acidic and alkaline substances and two metering pumps (25) are connected to the bottom respectively. The inner wall of the mixing chamber (22) is also equipped with a pH sensor (26) for detecting the acidity and alkalinity of the wastewater. The cleaning device (6) is located on one side of the zeolite rotor (1). The cleaning device (6) includes a pressure chamber (61) and the inner cavity of the pressure chamber (61) is filled with sodium chloride solution.
2. The zeolite adsorption treatment device for removing strontium and cesium according to claim 1, characterized in that: One end of the pressure chamber (61) is provided with a plunger (62), and one end of the plunger (62) is provided with a cylinder (63). The cylinder (63) can drive the plunger (62) to move back and forth along the inner cavity of the pressure chamber (61). The other end of the pressure chamber (61) is provided with a throttling pipe (64). A guide pipe (66) is provided on both sides of the throttling pipe (64). One end of the guide pipe (66) is provided with a nozzle (67). The surface of the nozzle (67) is provided with a flushing hole facing the zeolite rotor (1). A water supply pipe (65) is provided on one side of the pressure chamber (61).
3. The zeolite adsorption treatment device for removing strontium and cesium according to claim 1, characterized in that: The outer side of the zeolite rotor (1) is provided with a belt groove (14), the inner wall of the belt groove (14) is provided with a belt strip (13), one end of the inner wall of the belt strip (13) is provided with a pulley (12), and one side of the pulley (12) is provided with a servo motor (11).
4. A zeolite adsorption treatment device for removing strontium and cesium according to claim 2, characterized in that: The inner cavity of the throttling tube (64) is provided with a fixing seat (641), and a first spring (642) is provided on one side of the fixing seat (641). A valve column (643) is fixedly connected to one end of the first spring (642). A drain hole (644) is opened on both sides of the throttling tube (64). The outer side of the valve column (643) is transitionally fitted with the inner cavity of the throttling tube (64).
5. A zeolite adsorption treatment device for removing strontium and cesium according to claim 1, characterized in that: The filter holes of the first zeolite plate (15) and the second zeolite plate (16) are provided with a biosorbent that has a high selectivity and affinity for radioactive elements.
6. A zeolite adsorption treatment device for removing strontium and cesium according to claim 2, characterized in that: The inner wall of the water supply pipe (65) is provided with a fixing ring (653), and a second spring (652) is provided on one side of the fixing ring (653). One end of the second spring (652) is fixedly connected to a valve ring (651). A water suction hole (654) is opened on one side of the water supply pipe (65) at the corresponding position of the valve ring (651).
7. A zeolite adsorption treatment device for removing strontium and cesium according to claim 1, characterized in that: A gear ring (17) is provided on the outer side of the first zeolite plate (15), and a stepper motor (18) is provided above the zeolite wheel (1). The output end of the stepper motor (18) is fixedly connected to a drive shaft (181), and one end of the drive shaft (181) is fixedly connected to a drive gear (182). The outer edge of the drive gear (182) meshes with the outer edge of the gear ring (17).
8. A zeolite adsorption treatment device for removing strontium and cesium according to claim 1, characterized in that: A drying fan (4) is provided on the other side of the zeolite rotor (1). The air outlet of the drying fan (4) faces the surface of the zeolite rotor (1) and is used to blow hot air onto the zeolite rotor (1) to accelerate its drying process. The drying fan (4) can blow air with a temperature range of 40-80°C.
9. A zeolite adsorption treatment device for removing strontium and cesium according to claim 1, characterized in that: The inner cavity of the top chamber (27) is also provided with a coagulation chamber, which is located directly above the sedimentation chamber (24) and contains coagulant. A sludge pump (21) is provided on one side of the pretreatment chamber (2), and one end of the sludge pump (21) is connected to the bottom of the inner cavity of the sedimentation chamber (24).
10. A zeolite adsorption treatment device for removing strontium and cesium according to claim 1, characterized in that: A controller (5) is also provided on one side of the zeolite rotor (1) between the drain (3) and the drying fan (4). The controller (5) is connected to the pH sensor (26) and is used to receive and process the electrical signal emitted by the pH sensor (26). The controller (5) can also start the metering pump (25) to quantitatively discharge acidic or alkaline substances in the regulating chamber to the mixing chamber (22) through the metering pump (25).
Citation Information
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