Wastewater defluorination equipment with adsorbent recycling

Abstract

The application discloses a kind of adsorbent recycling wastewater defluorination equipment, belong to wastewater treatment technical field, including total inlet pipe, the front end of the total inlet pipe is circumscribed wastewater source, the right side of the total inlet pipe is equipped with multiple branch pipes, multiple The right end of the branch pipe is communicated with wastewater defluorination equipment, the bottom of the wastewater defluorination equipment is fixedly connected with support frame, and the top of the wastewater defluorination equipment is equipped with guiding device, multiple adsorption devices are fixedly connected in the guiding device, the right side of the wastewater defluorination equipment is equipped with water collecting tank, the water collecting tank is fixedly connected with water pump, the right side of the water collecting tank is equipped with drain main pipe, and the left end of the drain main pipe is communicated with the water outlet of the water pump;The application has high removal efficiency of fluoride ion in water body, and has good removal effect, without bringing new pollutants, and the cyclic use of adsorbent can also reduce the cost of water body defluorination.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater treatment, in particular to a kind of adsorbent recycling wastewater defluorination equipment. BACKGROUND

[0002] Fluorine-containing wastewater is a kind of wastewater with high concentration of fluoride ions generated in industrial production process, which will cause serious harm to the environment and human health if discharged directly without treatment.

[0003] Fluorine is one of the essential trace elements for human body, but excessive intake will cause a series of health problems. Long-term drinking of high-fluorine water has the most direct impact on dental health, which is characterized by fluorosis, i.e. chalky plaque appears on the surface of teeth, and in severe cases, even tooth loss. More seriously, after fluoride enters the human body, it will combine with calcium ions in the bone to form calcium fluoride, affecting the normal structure and function of the bone, and increasing the risk of osteoporosis and bone fracture. Especially for children and the elderly, as their bone development is not mature or bone density is low, they are more vulnerable to fluorine pollution.

[0004] The method of removing fluoride ions in water body by adsorbing fluoride ions in fluorine-containing wastewater with adsorbent has low cost, and the replacement cost of adsorbent in existing wastewater defluorination equipment is high, so a kind of adsorbent recycling wastewater defluorination equipment is needed. SUMMARY

[0005] To solve the above technical problems, the present application provides a kind of adsorbent recycling wastewater defluorination equipment.

[0006] The technical scheme of the present application is: a kind of adsorbent recycling wastewater defluorination equipment, including total inlet pipe, the front end of the total inlet pipe is connected with wastewater source, the right side of the total inlet pipe is provided with a plurality of branch pipes, the right end of a plurality of branch pipes is communicated with wastewater defluorination equipment, the bottom of the wastewater defluorination equipment is fixedly connected with support frame, the top of the wastewater defluorination equipment is provided with guiding device, a plurality of adsorption devices are fixedly connected in the guiding device, the right side of the wastewater defluorination equipment is provided with water collecting tank, the water collecting tank is fixedly connected with water pump, the right side of the water collecting tank is provided with drainage main pipe, the left end of the drainage main pipe is communicated with the water outlet of the water pump.

[0007] The wastewater defluorination equipment includes a plurality of wastewater defluorination channels, the two sides of a plurality of wastewater defluorination channels are fixedly connected with desorption equipment, the top of a plurality of wastewater defluorination channels and the top of the desorption equipment are provided with insertion port, the adsorption device is insertedly connected in the insertion port.

[0008] Further, the adsorption device comprises a top plate, a adsorbent mechanism is fixedly connected below the top plate, and a sealing ring is arranged below the outer side of the top plate.

[0009] Description: The top plate is tightly attached to the wastewater defluorination channel through the sealing ring, so that water in the wastewater defluorination channel is prevented from overflowing from the insertion port.

[0010] Further, the adsorbent mechanism comprises a plurality of vertical active alumina plates, and the top of each of the plurality of vertical active alumina plates is fixedly connected with the top plate.

[0011] Description: This adsorbent mechanism helps to improve the thermal desorption efficiency of the vertical active alumina plate.

[0012] Further, the adsorbent mechanism comprises a filling basket, the top of the filling basket is fixedly connected with the top plate, and adsorbent particles are filled in the filling basket.

[0013] Description: This adsorbent mechanism has a large surface area of adsorbent and good adsorption effect.

[0014] Further, the desorption equipment comprises a refractory channel, a gas washing tank is fixedly connected to the right side of the refractory channel, a microporous aeration pipe is fixedly connected in the gas washing tank, the left end of the microporous aeration pipe is communicated with the refractory channel, a gas jet head is arranged at the right end of the microporous aeration pipe and the left end of the refractory channel, and an electronic igniter is fixedly connected to the top of the refractory channel.

[0015] Description: The fluorides on the surface of the adsorbent mechanism 62 are sublimed to form gas by high temperature, and the gas containing fluoride ions is cooled and sublimed in the gas washing tank to form solid precipitates or is dissolved in the gas washing tank.

[0016] Further, the gas jet head comprises a cylindrical block, a through hole pipe one and a through hole pipe two are arranged in the cylindrical block, a metal conduit one and a metal conduit two are respectively insertedly and fixedly connected to the right sides of the through hole pipe one and the through hole pipe two, and the outer walls of the metal conduit one and the metal conduit two are respectively electrically connected with the positive electrode and the negative electrode of the electronic igniter.

[0017] Description: The left ends of the through hole pipe one and the through hole pipe two are respectively communicated with gas and air, the gas and the air are ignited to generate high temperature in the refractory channel, the pollutants on the surface of the adsorbent mechanism are sublimed, and the adsorption property of the adsorbent mechanism is restored.

[0018] Further, the guide device comprises a fixed cross beam, a plurality of connecting rods are fixedly connected below the fixed cross beam, a lifting mechanism is fixedly connected below each of the front and rear ends of the fixed cross beam, the lifting mechanism comprises a gas pressure rod, the top of the gas pressure rod is fixedly connected with the fixed cross beam, the bottom of the gas pressure rod is fixedly connected with a sliding block, and the sliding block is slidingly connected with a base through a lead screw mechanism.

[0019] Description: through the air pressure rod into the insertion port, the guide device moves forward and backward alternately, the adsorption device with adsorption capacity is inserted into the wastewater fluorine removal equipment, the adsorption device with adsorption pollutants is inserted into the refractory channel for thermal desorption.

[0020] Further, the lead screw mechanism comprises a transmission rod, the transmission rod is in transmission connection with the sliding block lead screw, the front and rear ends of the transmission rod are in rotation connection with the base, and the outer side wall of the base is fixedly connected with a transmission motor for driving the transmission rod to rotate.

[0021] Description: through the lead screw mechanism, the fixed cross beam moves forward and backward.

[0022] Further, the total water inlet pipe is provided with an electronic total valve, the branch pipes are provided with electronic regulating valves, the outer wall of the total water inlet pipe is fixedly connected with a PLC controller, and the PLC controller is electrically connected with the electronic total valve, the electronic regulating valves, the desorption equipment, the water pump and the guide device.

[0023] Description: because the water pressures of the front and rear branch pipes are different, the electronic regulating valves are needed to adjust so that the flow rates of the branch pipes are consistent, when the guide device works, the electronic total valve is needed to cut off the water flow, and the PLC controller is used for automatic control.

[0024] The beneficial effects of the present application are as follows:

[0025] The present application can reduce the content of fluorine ions in water by adsorbing the fluorine ions in water by the adsorbent, desorbing the pollutants adsorbed on the surface of the adsorbent by thermal desorption, and purifying the tail gas by the gas washing tank, the present application has high removal efficiency and good removal effect on fluorine ions in water, does not bring new pollutants, and the recycling of the adsorbent can also reduce the cost of water fluorine removal. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic view of the present application.

[0027] Figure 2 is a structural schematic view of the desorption equipment of the present application.

[0028] Figure 3 is a cross-sectional left view of the adsorbent mechanism in embodiment 1 of the present application.

[0029] Figure 4 is a cross-sectional left view of the adsorbent mechanism in embodiment 2 of the present application.

[0030] Figure 5 is a structural left view of the guide device of the present application.

[0031] Among them, 1-main inlet pipe, 2-branch pipe, 3-wastewater defluoridation equipment, 4-support frame, 5-guide device, 6-adsorption device, 7-water collection tank, 8-water pump, 9-main drainage pipe, 31-wastewater defluoridation channel, 32-desorption equipment, 33-insertion port, 61-top plate, 62-adsorbent mechanism, 63-sealing ring, 621-vertical activated alumina plate, 622-filling basket, 321-refractory channel, 322-air washing tank, 323-microporous aeration pipe, 32 4-Gas nozzle, 325-Electronic igniter, 3241-Cylindrical block, 3242-Through-hole pipe one, 3243-Through-hole pipe two, 3244-Metal conduit one, 3245-Metal conduit two, 51-Fixed crossbeam, 52-Connecting rod, 53-Lifting mechanism, 531-Pneumatic rod, 532-Slider, 533-Screw mechanism, 5331-Transmission rod, 5332-Transmission motor, 11-Electronic master valve, 12-Electronic regulating valve, 13-PLC controller. Detailed Implementation

[0032] Example 1:

[0033] like Figure 1 As shown, a wastewater defluorination device for recycling and reusing adsorbents includes a main inlet pipe 1, with a wastewater source connected to the front end of the main inlet pipe 1. Multiple branch pipes 2 are provided on the right side of the main inlet pipe 1, and the right ends of the multiple branch pipes 2 are all connected to a wastewater defluorination device 3. A support frame 4 is fixedly connected to the bottom of the wastewater defluorination device 3. A guide device 5 is provided on the top of the wastewater defluorination device 3. Multiple adsorption devices 6 are fixedly connected to the lower part of the guide device 5. A water collection tank 7 is provided on the right side of the wastewater defluorination device 3. A water pump 8 is fixedly connected to the water collection tank 7. A main drain pipe 9 is provided on the right side of the water collection tank 7. The left end of the main drain pipe 9 is connected to the outlet of the water pump 8.

[0034] The wastewater defluorination equipment 3 includes multiple wastewater defluorination channels 31, with desorption devices 32 fixedly connected to both sides of the multiple wastewater defluorination channels 31. Insertion ports 33 are provided at the top of the multiple wastewater defluorination channels 31 and the top of the desorption devices 32, and the adsorption device 6 is inserted into the insertion port 33.

[0035] The adsorption device 6 includes a top plate 61, an adsorbent mechanism 62 is fixedly connected below the top plate 61, and a sealing ring 63 is provided on the lower outer side of the top plate 61.

[0036] The sealing ring 63 ensures that the top plate 61 is tightly attached to the wastewater defluorination channel 31, preventing water in the wastewater defluorination channel 31 from overflowing from the insertion port 33.

[0037] like Figure 3 As shown, the adsorbent mechanism 62 includes multiple vertical activated alumina plates 621, and the tops of the multiple vertical activated alumina plates 621 are fixedly connected to the top plate 61.

[0038] The adsorbent mechanism 62 helps to improve the thermal desorption efficiency of the vertical active alumina plate 621.

[0039] As shown in Figure 2 The desorption device 32 includes a refractory channel 321, and the right side of the refractory channel 321 is fixedly connected with a gas washing tank 322. The gas washing tank 322 is fixedly connected with a microporous aeration pipe 323. The left end of the microporous aeration pipe 323 is communicated with the refractory channel 321. The right end of the microporous aeration pipe 323 is provided with a gas jet head 324 at the left end of the refractory channel 321. The top of the refractory channel 321 is fixedly connected with an electronic igniter 325.

[0040] The fluorine compounds on the surface of the adsorbent mechanism 62 are sublimated into gas by high temperature. The gas containing fluorine ions is cooled and sublimated in the gas washing tank 322 to form solid precipitates or is dissolved in the gas washing tank 322.

[0041] The gas jet head 324 includes a cylindrical block 3241. The cylindrical block 3241 is internally provided with a through hole pipe one 3242 and a through hole pipe two 3243. The right sides of the through hole pipe one 3242 and the through hole pipe two 3243 are respectively fixedly connected with a metal conduit one 3244 and a metal conduit two 3245 in plug-in mode. The outer walls of the metal conduit one 3244 and the metal conduit two 3245 are respectively electrically connected with the positive electrode and the negative electrode of the electronic igniter 325.

[0042] The left ends of the through hole pipe one 3242 and the through hole pipe two 3243 are respectively communicated with gas and air. The gas and the air are ignited in the refractory channel 321 to generate high temperature, so that the pollutants on the surface of the adsorbent mechanism 62 are sublimated, and the adsorption of the adsorbent mechanism 62 is restored.

[0043] As shown in Figure 5 The guiding device 5 includes a fixed cross beam 51. The lower side of the fixed cross beam 51 is fixedly connected with a plurality of connecting rods 52. The lower sides of the front and rear ends of the fixed cross beam 51 are respectively fixedly connected with a lifting mechanism 53. The lifting mechanism 53 includes a pneumatic rod 531. The top of the pneumatic rod 531 is fixedly connected with the fixed cross beam 51. The bottom of the pneumatic rod 531 is fixedly connected with a sliding block 532. The sliding block 532 is slidingly connected with a base 534 through a screw rod mechanism 533.

[0044] The adsorption device 6 is inserted into the insertion opening 33 through the pneumatic rod 531. The guiding device is alternately moved forward and backward. The adsorption device 6 with adsorption capacity is inserted into the wastewater fluorine removal device 3. The adsorption device 6 for adsorbing pollutants is inserted into the refractory channel 31 for thermal desorption.

[0045] The screw rod mechanism 533 includes a transmission rod 5331. The transmission rod 5331 is in screw transmission connection with the sliding block 532. The front and rear ends of the transmission rod 5331 are respectively rotatably connected with the base 534. The outer side wall of the base 534 is fixedly connected with a transmission motor 5332 for driving the transmission rod 5331 to rotate.

[0046] The fixed crossbeam 51 is moved back and forth by the lead screw mechanism 533.

[0047] Example 2:

[0048] The difference between this embodiment and Embodiment 1 is that, as Figure 4 As shown, the adsorbent mechanism 62 includes a filling basket 622, the top of which is fixedly connected to the top plate 61, and the filling basket 622 is filled with adsorbent particles.

[0049] Compared to Example 1, the adsorbent in this embodiment has a larger surface area and better adsorption effect.

[0050] Example 3:

[0051] The difference between this embodiment and embodiment 1 is that an electronic main valve 11 is provided on the main water inlet pipe 1, an electronic regulating valve 12 is provided on the branch pipe 2, and a PLC controller 13 is fixedly connected to the outer wall of the main water inlet pipe 1. The PLC controller 13 is electrically connected to the electronic main valve 11, the electronic regulating valve 12, the desorption device 32, the water pump 8, and the guide device 5 respectively.

[0052] Compared to Example 1, in this embodiment, since the water pressure of the front and rear branch pipes 2 is different, it is necessary to adjust the flow rate of each branch pipe 2 by means of electronic regulating valve 12. When the guiding device 5 is working, the water flow needs to be cut off by electronic main valve 11 and automated control is achieved by PLC controller 13.

[0053] The working method of the wastewater defluoridation equipment for adsorbent recycling in Example 3 above includes the following steps:

[0054] S1. Water enters through the main inlet pipe 1 and is then evenly distributed into the branch pipes 2. When the water flows through the wastewater defluorination channel 31, the adsorbent mechanism 62 on the adsorption device 6 adsorbs fluoride ions in the water.

[0055] S2. After the adsorption capacity of the adsorbent mechanism 62 decreases, close the electronic main valve 11, and remove the adsorption device 6 from the wastewater defluorination channel 31 through the lifting mechanism 53. Then, drive the fixed crossbeam 51 to move back and forth alternately through the screw mechanism 533, so that the adsorption device 6 in the refractory channel 321 can be inserted into the wastewater defluorination channel 31 to adsorb fluoride ions in the water in the wastewater defluorination channel 31.

[0056] S3, the left end of the through-hole pipe one 3242 and the through-hole pipe two 3243 respectively communicate with gas and air, the gas and air are ignited in the refractory passage 321 to produce high temperature, so that the pollutants on the surface of the adsorbent mechanism 62 sublimate, restore the adsorbability of the adsorbent mechanism 62, the tail gas enters the gas washing groove 322, the gas containing fluorine ions is cooled and condensed in the gas washing groove 322, and solid precipitates or is dissolved in the gas washing groove 322.

[0057] The water suction pump 8, the microporous aeration pipe 323, the vertical active alumina plate 621, the air pressure rod 531, the transmission motor 5332, the electronic total valve 11, the electronic regulating valve 12 and the PLC controller 13 used in the above embodiment are all commercially available products, as long as the functions of the application can be realized, and a person skilled in the art can select and use according to conventional common sense, which is not specially limited here.

Claims

1. A waste water defluorination apparatus using adsorbent recycling, characterized by, Including total inlet pipe (1), the outer circle of the front end of the total inlet pipe (1) is waste water source, the right side of the total inlet pipe (1) is equipped with multiple branch pipes (2), the right end of multiple branch pipes (2) is communicated with waste water defluorination equipment (3), the bottom of waste water defluorination equipment (3) is fixedly connected with support frame (4), the top of waste water defluorination equipment (3) is equipped with guiding device (5), multiple adsorption devices (6) are fixedly connected in the lower part of guiding device (5), the right side of waste water defluorination equipment (3) is equipped with water collecting tank (7), water collecting tank (7) is fixedly connected with water pump (8), the right side of water collecting tank (7) is equipped with drainage main pipe (9), the left end of drainage main pipe (9) is communicated with the water outlet of water pump (8); Waste water defluorination equipment (3) includes multiple waste water defluorination channels (31), both sides of multiple waste water defluorination channels (31) are fixedly connected with desorption equipment (32), the top of multiple waste water defluorination channels (31) and the top of desorption equipment (32) are equipped with insertion port (33), adsorption device (6) is insertedly connected in insertion port (33); Desorption equipment (32) includes refractory channel (321), the right side of refractory channel (321) is fixedly connected with gas washing tank (322), gas washing tank (322) is fixedly connected with microporous aeration pipe (323) in, the left end of microporous aeration pipe (323) is communicated with refractory channel (321), the right end of microporous aeration pipe (323) is equipped with gas jet head (324) in the left end of refractory channel (321), the top of refractory channel (321) is fixedly connected with electronic igniter (325); Gas jet head (324) includes cylindrical block (3241), the inner of cylindrical block (3241) is equipped with through hole pipe one (3242) and through hole pipe two (3243), the right side of through hole pipe one (3242) and through hole pipe two (3243) is respectively insertedly fixedly connected with metal conduit one (3244) and metal conduit two (3245), the outer wall of metal conduit one (3244) and metal conduit two (3245) is respectively electrically connected with the positive electrode and the negative electrode of electronic igniter (325). The guiding device (5) comprises a fixed crossbeam (51), a plurality of connecting rods (52) are fixedly connected below the fixed crossbeam (51), a lifting mechanism (53) is fixedly connected below the front and rear ends of the fixed crossbeam (51), the lifting mechanism (53) comprises a gas pressure rod (531), the top of the gas pressure rod (531) is fixedly connected with the fixed crossbeam (51), the bottom of the gas pressure rod (531) is fixedly connected with a sliding block (532), and the sliding block (532) is slidably connected with a base (534) through a lead screw mechanism (533); the adsorption device (6) is inserted into the insertion port (33) through the gas pressure rod (531), the guiding device (5) is moved alternately forward and backward, the adsorption device (6) with adsorption capacity is inserted into the wastewater fluorine removal equipment (3), and the adsorption device (6) for adsorbing pollutants is inserted into the fire-resistant channel (321) for heat desorption. The lead screw mechanism (533) comprises a transmission rod (5331), the transmission rod (5331) is in screw transmission connection with the sliding block (532), and the front and rear ends of the transmission rod (5331) are rotatably connected with the base (534).

2. The apparatus for removing fluorine from waste water by using adsorbent cyclic regeneration according to claim 1, wherein The adsorption device (6) comprises a top plate (61), an adsorbent mechanism (62) is fixedly connected below the top plate (61), and a sealing ring (63) is arranged below the outer side of the top plate (61).

3. The apparatus for removing fluorine from waste water by using adsorbent cyclic regeneration according to claim 2, wherein The adsorbent mechanism (62) comprises a plurality of vertical active alumina plates (621), and the top of each vertical active alumina plate (621) is fixedly connected with the top plate (61).

4. The apparatus for removing fluorine from waste water by using adsorbent cyclic regeneration according to claim 2, wherein The adsorbent mechanism (62) comprises a filling basket (622), the top of the filling basket (622) is fixedly connected with the top plate (61), and the filling basket (622) is filled with adsorbent particles.

5. The apparatus for removing fluorine from waste water by using adsorbent cyclic regeneration according to claim 1, wherein The lead screw mechanism (533) comprises a transmission rod (5331), the transmission rod (5331) is in screw transmission connection with the sliding block (532), and the front and rear ends of the transmission rod (5331) are rotatably connected with the base (534).

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