Deep fluorine removal equipment with stage treatment function

Abstract

The utility model discloses deep defluorination equipment with a stage treatment function. The deep defluorination equipment comprises an adsorption tank and a settling tank which is arranged at the bottom of the adsorption tank and is communicated with the adsorption tank, the fluorine-containing wastewater is subjected to composite treatment by the adsorption tank and the precipitation tank, so that the wastewater can be effectively subjected to fluorine removal treatment step by step, the fluorine content in the wastewater is treated to 1.5 mg / L by the adsorption tank, and then the precipitation treatment is performed, so that the fluorine removal effect can be more accurately and efficiently realized; meanwhile, the equipment can be used for continuously treating the wastewater and has the advantage of high fluorine removal efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of fluorine removal, in particular to a deep fluorine removal device with a graded processing function. Background Art

[0002] Fluoride is one of the essential trace elements for the human body. A moderate amount of fluoride is beneficial to human health, but too little or too much fluoride will harm health, especially too much will cause oxygen poisoning. The fluoride content of people's daily drinking water is generally controlled at 0.4-0.6 mg / L. Long-term drinking of water with an oxygen ion concentration greater than 1 mg / L is harmful to the human body. In severe cases, it will cause fluorosis, fluorosis of the bones and other diseases, and even induce the occurrence of tumors, which seriously threatens human health.

[0003] The seriousness of the fluorine pollution problem has led to great attention in the field of environmental protection for the treatment of fluorine-containing wastewater. The current industrial treatment methods for fluorine-containing wastewater mainly include precipitation, electrochemical, adsorption, ion exchange resin and microbial defluorination. In recent years, lime-fly ash combined method, membrane permeation method, distillation method, fluidized bed method, etc. have been gradually developed to assist in defluorination. The existing defluorination equipment has a complex process, and most of them are difficult to achieve in one step, and the emission compliance rate is also low. Based on this, this application designs a deep defluorination equipment with graded treatment to solve the above problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a deep defluorination equipment with a graded treatment function.

[0005] The technical solution of the utility model is: a deep defluorination device with a graded treatment function, comprising an adsorption tank, and a precipitation tank arranged at the bottom of the adsorption tank and connected to the adsorption tank;

[0006] The adsorption tank comprises a first tank body, a threaded rod connected at one end to the top of the first tank body and at the other end to the bottom of the first tank body, a primary adsorption member threadedly connected to the threaded rod and in contact with the inner wall of the first tank body, and a driving device for driving the threaded rod to reciprocate; a first water inlet is provided on the side wall of the first tank body; a first water outlet is provided at the bottom of the first tank body; a baffle and a solenoid valve for controlling the switch of the baffle are provided at the water outlet; the primary adsorption member is an adsorption plate attached with aluminum salt;

[0007] The sedimentation tank comprises a second tank body, a driving roller connected at one end to the center of the bottom of the second tank body and fixedly connected at the other end to the threaded rod, a filter plate slidably arranged on the driving roller and in contact with the inner wall of the second tank body, and a sedimentation assembly arranged in the second tank body and used for adding a sedimentation agent into the second tank body; the driving roller is provided with a wavy vertical groove; the second tank body top side wall is provided with a second water inlet; the second tank body bottom side wall is provided with a second water outlet;

[0008] Description: The composite treatment of fluorine-containing wastewater by the adsorption tank and the sedimentation tank of the present application can effectively remove fluorine from the wastewater step by step. The fluorine content in the wastewater is first treated to 1.5 mg / L by the adsorption tank and then subjected to sedimentation treatment. This can achieve a more accurate and efficient defluorination effect. The design of the adsorption tank enables the first-stage adsorption component to move vertically back and forth to achieve full contact with the wastewater, thereby improving the adsorption efficiency. At the same time, the design of the sedimentation tank can utilize the precipitation agent to precipitate the wastewater after adsorption treatment. At the same time, the drive roller can be used to rotate and drive the filter plate to move up and down, thereby filtering the impurities in the wastewater after defluorination, thereby further improving the defluorination effect of the device.

[0009] Furthermore, a trough is provided on the side wall of the second tank; the precipitation assembly comprises a precipitant capsule arranged in the trough, and a pressing block arranged outside the filter plate and slidably connected to the trough; the pressing block is in contact with the precipitant capsule, and the precipitant capsule contains a precipitant; the precipitant is an aluminum hydroxide solution with a mass concentration of 1-2%;

[0010] Note: The above arrangement can utilize the rotation of the driving device to drive the threaded rod and the driving roller to rotate, thereby squeezing and triggering the precipitation agent, and the above arrangement can add the precipitation agent in small amounts and multiple times, thereby making it easier to fully mix the wastewater and the agent, improving the precipitation efficiency, and further enhancing the fluorine removal effect.

[0011] Furthermore, the driving device is arranged on the top of the first tank body and the output end is fixedly connected to the threaded rod, the driving device is a driving motor, and a water leakage hole is provided on the first-level adsorption member;

[0012] Description: The first-stage adsorbent is driven to reciprocate by driving the threaded rod through a driving motor, thereby realizing vertical reciprocating motion of the first-stage adsorbent, so that the first-stage adsorbent can contact with the wastewater more efficiently, thereby improving the adsorption efficiency.

[0013] Furthermore, an adsorption chamber having an inner diameter larger than that of the first tank body is provided between the first tank body and the second tank body, the first tank body and the second tank body are both connected to the adsorption chamber, and a secondary adsorption member is provided in the adsorption chamber, the primary adsorption member is in sealing contact with the inner wall of the first tank body, and the primary adsorption member is a sealing plate with aluminum salt attached to the surface;

[0014] The secondary adsorbent comprises a pressure rod fixedly arranged at the end of the threaded rod, and an adsorbent capsule arranged on the bottom surface of the first tank body; the adsorbent capsule contains an active aluminum saturator with a concentration of 3-5%;

[0015] Description: The above-mentioned arrangement can further absorb the fluoride ions that are not completely adsorbed by the primary adsorbent. The T-shaped structure can effectively separate the primary adsorption and secondary adsorption steps, avoiding the problem of low adsorption efficiency caused by mixing of wastewater before and after treatment. At the same time, the sealed contact between the primary adsorbent and the inner wall of the first tank body can utilize the gravity of the water flow itself to drive the secondary adsorbent, reducing the power supply and the cost of using the device, thereby improving the treatment effects at all levels. The threaded rod is rotated to drive the pressure rod to squeeze the adsorbent capsule. At the same time, the rotation of the pressure rod can also further stir the wastewater, so that the wastewater and the agent are fully mixed, thereby improving the adsorption efficiency.

[0016] Furthermore, the driving device further comprises a torsion spring shaft for connecting the top of the threaded rod with the top of the first tank body;

[0017] Note: The above arrangement enables the threaded rod to automatically rotate and reset under the action of the torsion spring shaft after the wastewater enters the horizontal first tank body, thereby driving the first-stage adsorption component to reset, which is used to treat new wastewater and further improve the adsorption efficiency.

[0018] Furthermore, it also includes a fluorine concentration detection device, which is connected to the first water inlet and the second water inlet through pipelines respectively;

[0019] Note: The above settings can make fluorine removal more targeted. Wastewater with a fluorine concentration greater than 1.5 mg / L will pass through the adsorption tank and the sedimentation tank in turn to achieve more complete fluorine removal. Then, wastewater with a fluorine concentration less than 1.5 mg / L will be directly passed into the sedimentation tank to achieve a more efficient fluorine removal effect.

[0020] Furthermore, the driving roller is detachably connected to the filter plate, and the bottom plate of the second tank body is sealingly rotatably connected to the tank body;

[0021] Note: The above arrangement facilitates the disassembly and cleaning of the filter plate, thereby improving the defluorination efficiency.

[0022] The beneficial effects of the utility model are:

[0023] (1) The composite treatment of fluorine-containing wastewater by the adsorption tank and the sedimentation tank of the utility model can effectively remove fluorine from the wastewater step by step. The fluorine content in the wastewater is first treated to 1.5 mg / L by the adsorption tank and then subjected to sedimentation treatment. This can achieve a more accurate and efficient fluorine removal effect and has the advantage of high fluorine removal efficiency.

[0024] (2) The adsorption tank of the utility model utilizes the rotation of the threaded rod to drive the pressure rod and thus squeeze the adsorbent capsule, further adsorbing and treating the fluoride ions that are not completely adsorbed by the primary adsorbent. At the same time, the rotation of the pressure rod can also further stir the wastewater, so that the wastewater and the agent are fully mixed, thereby improving the adsorption efficiency. The threaded rod and the drive roller are arranged to drive the precipitation component and the filter plate, so that the fluorine-containing wastewater can be adsorbed, precipitated and filtered without using a motor, and is not limited by the power supply of the device, thereby effectively improving the fluorine removal efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the external structure of Example 1 of the utility model;

[0026] Figure 2 This is a schematic diagram of the positional relationship between the adsorption tank and the second tank body in Example 1 of the utility model;

[0027] Figure 3 This is a schematic diagram of the internal structure of the sedimentation tank of Example 1 of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the precipitation assembly of Example 1 of the utility model;

[0029] Figure 5 This is a schematic diagram of the external structure of the adsorption tank of Example 2 of the utility model;

[0030] Figure 6 This is a schematic structural diagram of a secondary adsorption member according to Embodiment 2 of the present utility model;

[0031] Among them, 1-adsorption tank, 11-first tank body, 111-first water inlet, 112-first water outlet, 12-threaded rod, 13-first-level adsorption component, 14-adsorption chamber, 141-secondary adsorption component, 1411-pressure rod, 1412-adsorbent capsule, 2-sedimentation tank, 21-second tank body, 211-sedimentation trough, 212-second water inlet, 213-second water outlet, 221-vertical slot, 22-drive roller, 23-filter plate, 24-sedimentation assembly, 241-precipitant capsule, 242-pressing block. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below in conjunction with specific implementation methods to better reflect the advantages of the present invention.

[0033] Example 1: Figures 1 to 4 The deep defluorination equipment with graded treatment function shown in the figure comprises an adsorption tank 1 and a precipitation tank 2 arranged at the bottom of the adsorption tank 1 and connected to the adsorption tank 1;

[0034] The adsorption tank 1 includes a first tank body 11, a threaded rod 12 connected to the top of the first tank body 11 at one end and to the bottom of the first tank body 11 at the other end, a primary adsorption member 13 threadedly connected to the threaded rod 12 and in contact with the inner wall of the first tank body 11, and a driving device for driving the threaded rod 12 to reciprocate; a first water inlet 111 is provided on the side wall of the first tank body 11; a first water outlet 112 is provided at the bottom of the first tank body 11; a baffle and a solenoid valve for controlling the switch of the baffle are provided at the first water outlet 112; the primary adsorption member 13 uses a commercially available annular adsorption plate attached with aluminum salt; the driving device is arranged on the top of the first tank body 11 and the output end is fixedly connected to the threaded rod 12, the driving device is a commercially available driving motor, and a water leakage hole is provided on the primary adsorption member 13;

[0035] The sedimentation tank 2 includes a second tank body 21, a driving roller 22 connected to the bottom of the second tank body 21 at one end and fixedly connected to the bottom of the threaded rod 12 at the other end, a filter plate 23 slidably arranged on the driving roller 22 and in contact with the inner wall of the second tank body 21, and a sedimentation assembly 24 arranged in the second tank body 21 and used for adding a sedimentation agent to the inside of the second tank body 21; it can be understood that in order to achieve a fixed connection between the threaded rod 12 and the driving roller 22, the threaded rod 12 needs to pass through the bottom of the first tank body 11 and be rotatably sealed and connected to the bottom of the first tank body 11;

[0036] The driving roller 22 is provided with a wave-shaped vertical groove 221; the top side wall of the second tank body 21 is provided with a second water inlet 212; the bottom side wall of the second tank body 21 is provided with a second water outlet 213;

[0037] It also includes a fluorine concentration detection device, which is connected to the first water inlet 111 and the second water inlet 212 through pipelines respectively; wherein the fluorine concentration detection device is a commercially available fluorine concentration detection device;

[0038] A trough 211 is provided on the side wall of the second tank body 21. The precipitation assembly 24 includes a precipitant capsule 241 disposed in the trough 211, and a pressing block 242 disposed outside the filter plate 23 and slidably connected to the trough 211. The pressing block 242 is in contact with the precipitant capsule 241, and the precipitant capsule 241 contains a precipitant. The precipitant is an aluminum hydroxide solution with a mass concentration of 1.5%.

[0039] The driving roller 22 is detachably connected to the filter plate 23; the bottom plate of the second tank body 21 is sealed and rotatably connected to the tank body;

[0040] The working principle of this embodiment is as follows: the fluorine concentration detection device detects the fluorine ion concentration in the wastewater, and the measured fluorine ion concentration is 2 mg / L. At this time, the wastewater is introduced along the first water inlet 111, and then the driving motor is driven, and the threaded rod 12 reciprocates to drive the primary adsorption member 13 to reciprocate vertically. After the reaction for 15 minutes, the solenoid valve is opened to allow the wastewater after adsorption to enter the second tank body 21. After all the wastewater enters, the solenoid valve is closed. At this time, the concentration of the wastewater to be treated is detected again and introduced along the first tank body 11. While the threaded rod 12 rotates, the first adsorption member 13 is driven to reciprocate vertically. The driving roller 22 is driven by a magnetic block. During the rotation of the driving roller 22, the filter plate 23 reciprocates up and down and the pressing block 242 is used to squeeze the precipitant capsule 241, so that the precipitant capsule 241 is sprayed into the second tank body 21 along the medicine outlet. At the same time, the reciprocating movement of the filter plate 23 can mix the wastewater and the medicine in the second tank body 21. Under the action of the filter plate 23, the precipitate is filtered, and the treated water flows out along the second water outlet 213 at the bottom of the second tank body 21; the filter plate 23 can be disassembled and cleaned, and then the next defluorination treatment is carried out.

[0041] Embodiment 2: The difference from embodiment 1 is that Figure 5 , Figure 6 As shown, an adsorption chamber 14 having an inner diameter greater than that of the first tank body 11 is provided between the first tank body 11 and the second tank body 21, the first tank body 11 and the second tank body 21 are both connected to the adsorption chamber 14, and a secondary adsorption member 141 is provided in the adsorption chamber 14; the primary adsorption member 13 is in sealing contact with the inner wall of the first tank body 11, and the primary adsorption member 13 is a sealing plate with aluminum sulfate powder attached to the surface; in this embodiment, the inner diameter of the adsorption chamber 14 is 1.5 times the inner diameter of the first tank body 11;

[0042] The secondary adsorbent 141 includes a pressure rod 1411 fixedly arranged at the end of the threaded rod 12, and an adsorbent capsule 1412 arranged on the bottom surface of the first tank body 11; the adsorbent capsule 1412 contains an active aluminum saturant with a mass concentration of 3%;

[0043] The driving device also includes a torsion spring shaft for connecting the top of the threaded rod 12 and the top of the first tank body 11;

[0044] The working principle of this embodiment is basically the same as that of the first embodiment, except that: the wastewater gradually increases on the surface of the first-stage adsorbent 13, and the first-stage adsorbent 13 is pressed under the action of gravity, and the threaded rod 12 is driven at the same time. As the first-stage adsorbent 13 enters the first horizontal tank body 11, the wastewater flows into the horizontal tank body. At this time, under the rotation of the threaded rod 12, the pressure rod 141 rotates to reciprocate and squeeze the adsorbent capsule 142, thereby achieving further adsorption treatment, and then the reverse drive of the threaded rod 12 is achieved under the action of the torsion spring shaft, and the pressure rod 141 is reset; the first tank body 11 and the second tank body 2 1. The structural design of the adsorption chamber 14 between the first and second tank bodies 1 can make the wastewater initially adsorbed only under the action of the threaded rod 12 and the first-level adsorption member 13. After the wastewater reaches the adsorption chamber 14, since the inner diameter of the adsorption chamber 14 is larger than the first tank body 11, the wastewater enters the adsorption chamber 14 at this time. At this time, the rotation amplitude of the threaded rod 12 can drive the pressure rod 141 to squeeze the adsorbent capsule 142 to release the agent. After reaching the bottom, the first-level adsorption member 13 reverses under the action of the torsion spring rod, thereby driving the pressure rod 141 to rotate, playing a further stirring role, and completing the adsorption work under the action of the second-level adsorption member 14.

Claims

1. A deep defluorination equipment with graded treatment function, characterized in that: It comprises an adsorption tank (1), and a precipitation tank (2) arranged at the bottom of the adsorption tank (1) and connected to the adsorption tank (1); The adsorption tank (1) comprises a first tank body (11), a threaded rod (12) having one end connected to the top of the first tank body (11) and the other end connected to the bottom of the first tank body (11), a primary adsorption member (13) threadedly connected to the threaded rod (12) and in contact with the inner wall of the first tank body (11), and a driving device for driving the threaded rod (12) to reciprocate; a first water inlet (111) is provided on the side wall of the first tank body (11); a first water outlet (112) is provided at the bottom of the first tank body (11); a baffle and a solenoid valve for controlling the switch of the baffle are provided at the water outlet (112); The sedimentation tank (2) comprises a second tank body (21), a driving roller (22) having one end connected to the bottom of the second tank body (21) and the other end fixedly connected to the threaded rod (12), a filter plate (23) slidably arranged on the driving roller (22) and in contact with the inner wall of the second tank body (21), and a sedimentation component (24) arranged in the second tank body (21) and used for adding a sedimentation agent into the second tank body (21); the driving roller (22) is provided with a wavy vertical groove (221); the top side wall of the second tank body (21) is provided with a second water inlet (212); and the bottom side wall of the second tank body (21) is provided with a second water outlet (213).

2. The deep defluorination equipment with graded treatment function according to claim 1, characterized in that: A trough (211) is provided on the side wall of the second tank body (21); the precipitation assembly (24) comprises a precipitant capsule (241) arranged in the trough (211), and a pressing block (242) arranged on the outside of the filter plate (23) and slidably connected to the trough (211); the pressing block (242) is in contact with the precipitant capsule (241); and the precipitant capsule (241) contains a precipitant.

3. The deep defluorination equipment with graded treatment function according to claim 1, characterized in that: The driving device is arranged on the top of the first tank body (11) and the output end is fixedly connected to the threaded rod (12); the driving device is a driving motor; and a water leakage hole is provided on the first-level adsorption member (13).

4. The deep defluorination equipment with graded treatment function according to claim 1, characterized in that: An adsorption chamber (14) having an inner diameter greater than that of the first tank body (11) is provided between the first tank body (11) and the second tank body (21); the first tank body (11) and the second tank body (21) are both in communication with the adsorption chamber (14), and a secondary adsorption element (141) is provided in the adsorption chamber (14); the primary adsorption element (13) is in sealing contact with the inner wall of the first tank body (11), and the primary adsorption element (13) is a sealing plate with aluminum salt attached to its surface; The secondary adsorption component (141) comprises a pressure rod (1411) fixedly arranged at the end of the threaded rod (12), and an adsorbent capsule (1412) arranged on the bottom surface of the first tank body (11).

5. The deep defluorination equipment with graded treatment function as claimed in claim 4, characterized in that: The driving device also includes a torsion spring shaft for connecting the top of the threaded rod (12) and the top of the first tank body (11).

6. The deep defluorination equipment with graded treatment function according to claim 1, characterized in that: It also comprises a fluorine concentration detection device, which is connected to the first water inlet (111) and the second water inlet (212) through pipelines.

7. The deep defluorination equipment with graded treatment function according to claim 1, characterized in that: The driving roller (22) is detachably connected to the filter plate (23), and the bottom plate of the second tank body (21) is sealingly rotatably connected to the tank body.

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