Dechlorination tower with detection function for industrial wastewater treatment

Abstract

The invention discloses a dechlorination tower with a detection function for industrial wastewater treatment, and relates to the technical field of water pollution control and treatment. Comprising a tower body, a saline water inlet, a rotational flow guide and discharge device, a flow guide shell, a rotary inner cylinder, a hydraulic impeller, a convex surface filter screen, a guide and discharge rib, a multi-stage separation assembly and a circulating cleaning assembly. And vibration is transmitted to the convex surface filter screen and the secondary annular filter screen, so that adhered impurities can be effectively shaken off, automatic cleaning of the filter screens is realized, manual maintenance is reduced, and the service life of the filter screens is prolonged. The control system sequentially opens different electric valves according to a preset program, non-metal impurities carried by the mixed brine are discharged into the first impurity collecting box, and then magnetic metal chips are released to enter the second impurity collecting box after the electromagnet is closed, so that differentiated treatment of crystals, the metal chips and other impurities is realized, and the treatment efficiency is improved. The effect of effectively controlling and treating the industrial sewage is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water pollution control and treatment, and particularly relates to a dechlorination tower with a detection function for industrial wastewater treatment. BACKGROUND

[0002] Salt water generated in an electrolysis process often dissolves a certain amount of chlorine gas. If the chlorine gas cannot be completely removed, not only will it cause corrosion of pipelines and equipment in subsequent processes, leading to performance degradation, but also it will be converted into harmful ingredients in industrial wastewater during recycling or discharge. Therefore, a dechlorination tower needs to be configured in the industrial wastewater treatment link to efficiently remove residual chlorine gas in the wastewater, thereby controlling and treating industrial wastewater.

[0003] During the conveying process of the salt water, metal scraps are entrained due to pipeline and equipment wear, and crystals and hard scales are also precipitated under temperature and concentration fluctuations. These impurities are easy to deposit and block at the packing and internal parts of the dechlorination tower, resulting in reduced mass transfer efficiency, and further causing a decrease in dechlorination efficiency and unstable system operation. Although some existing dechlorination towers have a front-end filtration function, they mostly use simple filter screen structures, which are prone to blockage and require frequent maintenance, and lack effective treatment means for different types of impurities. SUMMARY

[0004] The present application aims to provide a dechlorination tower with a detection function for industrial wastewater treatment to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a dechlorination tower with a detection function for industrial wastewater treatment, comprising a tower body, a salt water outlet is arranged on one side of the tower body, and a cyclone guide is installed on the salt water outlet; the cyclone guide comprises a flow guide shell, a rotating inner cylinder is rotatably installed in the flow guide shell, a hydraulic impeller is installed in the rotating inner cylinder, a plurality of multi-stage separation assemblies are installed in the flow guide shell, the rotating inner cylinder is rotatably connected with the multi-stage separation assemblies, a convex filter screen is installed in the rotating inner cylinder, the convex filter screen is used for filtering impurities in the salt water, a plurality of guide ribs are installed on the convex filter screen, one end of each guide rib penetrates through the rotating inner cylinder, the guide ribs are used for guiding and discharging the impurities to the multi-stage separation assemblies, a plurality of circulating cleaning assemblies are installed on the rotating inner cylinder, and the multi-stage separation assemblies are used for multi-stage separation treatment of the impurities.

[0006] The dechlorination tower is connected with a control box, and the control box is provided with a control system capable of controlling the entire dechlorination tower.

[0007] During operation, the salt water to be dechlorinated is conveyed to the liquid inlet of the flow guide shell by an external conveying device, the salt water passes through the convex filter screen after passing through the hydraulic impeller, and then enters the salt water inlet from the liquid outlet of the flow guide shell, and finally enters the tower body.

[0008] During this period, the water turbine is rotated under the impact of salt water, the water turbine drives the rotating inner cylinder to rotate synchronously, the rotating inner cylinder drives the convex filter screen and the guide rib to rotate; when the convex filter screen filters salt water, due to its arc geometric structure, it can make the trapped solid impurities radially diffuse under the action of water power. The rotating convex filter screen and guide rib drive the impurities to rotate synchronously, so that the impurities enter the groove along the inclined chamfer under the action of centrifugal force, and finally are guided into the separation chamber with part of the salt water through the guide outlet. Both the main passability of the convex filter screen and the dynamic removal and removal of impurities are achieved.

[0009] Further, the multi-stage separation assembly includes an outer ring and an inner ring, the outer ring is installed in the flow guide shell, the inner ring is rotationally connected with the rotating inner cylinder, a secondary annular filter screen is installed between the outer ring and the inner ring, and the outer ring, the rotating inner cylinder, the inner ring and the secondary annular filter screen form a separation chamber.

[0010] Further, the guide rib is provided with an inclined chamfer, the guide rib is provided with a groove, the rotating inner cylinder is provided with a plurality of guide outlets, the guide rib penetrates through the guide outlets and communicates with the separation chamber, and the groove is used for guiding the impurities into the separation chamber.

[0011] Further, the bottom end of the outer ring is respectively provided with a first discharge outlet and a second discharge outlet, the first discharge outlet penetrates through the flow guide shell, the second discharge outlet penetrates through the flow guide shell, the first discharge outlet is provided with a first electric valve, the second discharge outlet is provided with a second electric valve, the first discharge outlet is externally connected with a first impurity collection box, the second discharge outlet is externally connected with a second impurity collection box, the second impurity collection box is used for collecting metal chips, an electromagnet is installed in the outer ring, and the electromagnet is located on one side of the second discharge outlet.

[0012] The electromagnet is arranged on one side of the second discharge outlet, so that the adsorbed metal chips can be discharged from the second discharge outlet nearby.

[0013] Further, the circulating cleaning assembly includes a sliding block, the sliding block is slidingly installed in the rotating inner cylinder, a sliding rod is installed on the sliding block, the sliding rod is slidingly connected with the rotating inner cylinder, an adsorption block is installed at one end of the sliding rod, the adsorption block is made of adsorbable material, and a spring is installed between the sliding block and the rotating inner cylinder.

[0014] The impurities and salt water mixture entering the separation chamber impact on the secondary annular filter screen, and the salt water therein continues to pass through the secondary annular filter screen and converges into the tower body, and the impurities are trapped in the separation chamber.

[0015] With the gradual increase of impurities intercepted by the secondary annular filter screen and the convex filter screen, the impurities around the filter screen increase, causing blockage. The control system detects and judges the degree of blockage through the pressure difference sensor when the degree of blockage reaches the critical point, and then opens the electromagnet. The electromagnet generates a magnetic force after being energized. When the rotating inner cylinder drives the circulating cleaning assembly to rotate near the electromagnet, the adsorption block is attracted to the electromagnet under the action of the magnetic force. When the adsorption block slides in the rotating inner cylinder, the sliding block is synchronously slid by the sliding rod. The sliding block extrudes the sliding rod. When the adsorption block rotates away from the electromagnet, the spring returns to its original position and drives the adsorption block to quickly rebound and hit the rotating inner cylinder, causing the rotating inner cylinder to vibrate. Under the magnetic attraction of the electromagnet, the rotating inner cylinder is repeatedly hit by the circulating cleaning assembly, causing the rotating inner cylinder to vibrate continuously. The vibration is transmitted to the convex filter screen and the secondary annular filter screen, causing the residual impurities on the filter screen to fall off, achieving the purpose of cleaning the filter screen.

[0016] When the electromagnet is working, it will continuously generate heat under the action of internal resistance. The generated heat is conducted to the separation chamber, heating the impurities deposited at the bottom of the separation chamber, dissolving the crystals in the impurities, and being carried away by the brine.

[0017] The adsorption block repeatedly extends and retracts near the electromagnet, continuously disturbing the surrounding mixed liquid, so that the metal chips in the impurities are fully adsorbed by the electromagnet in the stirring process, and the crystals in the impurities are uniformly heated.

[0018] After the electromagnet works for a preset time, the control system opens the first electric valve, and part of the brine drives the remaining other impurities to fall from the first electric valve into the first impurity collection box. Then, the control system closes the first electric valve and the electromagnet, and opens the second electric valve. After the electromagnet is closed, the adsorbed metal chips are no longer bound, and part of the brine drives the metal chips to fall into the second impurity collection box. Then, the second electric valve is closed, thereby realizing multi-stage separation and treatment of the metal chips, crystals and other types of impurities in the impurities. And the whole process can be carried out while maintaining continuous brine delivery.

[0019] Further, one end of the guide shell is a liquid inlet, and the water turbine is located near the liquid inlet. The other end of the guide shell is a liquid outlet, and the liquid outlet is connected with the brine inlet. A pressure difference sensor is installed in the guide shell.

[0020] The high-pressure end of the pressure difference sensor is in communication with the liquid inlet, and the low-pressure end is in communication with the liquid outlet. When the brine flows through the convex filter screen and the secondary annular filter screen, the resistance of the filter screen will cause a pressure difference between the inlet and the outlet. As the filter screen gradually clogs, the pressure difference increases accordingly. The pressure difference sensor measures the pressure difference between the two ends through the high-pressure end and the low-pressure end. The control system analyzes the pressure difference signal to detect and judge the clogging state of the filter screen.

[0021] Further, one side of the convex filter screen is a convex surface, and the guide ribs are installed on the convex surface and closely adhere to the convex surface, and the other side of the convex filter screen is a concave surface, and the concave surface faces the salt water inlet.

[0022] Further, the tower body top end is provided with a gas phase outlet, and the tower body bottom end is provided with a salt water outlet.

[0023] After the salt water enters the tower body top end from the salt water inlet, the heating device in the tower body adjusts the salt water to a preset temperature, the salt water is uniformly sprayed onto the filler layer through the water distributor, a liquid film is formed on the filler surface, and the salt water flows from top to bottom; the control system sends air into the tower body through the air sending device, and the air is uniformly sent into the tower through the gas distributor, and is reversely and fully contacted with the downward liquid in the filler layer, so that the dissolved chlorine is continuously transferred to the gas phase. The chlorine gas is discharged through the gas phase outlet at the top of the tower, enters the cooling and absorption system for treatment and recovery, and the dechlorinated salt water is cooled by the cooling device and discharged from the salt water outlet at the bottom of the tower body, so that the purpose of dechlorination of the salt water is achieved.

[0024] Compared with the prior art, the beneficial effects of the present application are: 1. By arranging the convex filter screen, the radial diffusion distribution of the intercepted solid impurities under the action of water power is realized by using the arc geometric characteristics, so that the main fluid has good passability. The rotation of the convex filter screen and the guide rib driven by the water power impeller makes the impurities enter the groove along the inclined chamfer under the action of centrifugal force, and finally enters the separation chamber through the guide discharge port with part of the salt water, so that the guided treatment of the filtered impurities is realized, the main passability of the convex filter screen is ensured, and the purpose of dynamic removal and guide discharge of the impurities is achieved.

[0025] 2. The salt water and impurities entering the separation chamber are separated by the secondary annular filter screen, the salt water is smoothly returned into the tower body, and the impurities are intercepted, so that the purpose of using the fluid motion to drive the impurities to migrate and remove is achieved, and the utilization rate of the salt water is improved.

[0026] 3. The electromagnetic body alternately impacts the rotating inner cylinder by magnetic attraction and release, so that periodic vibration is generated, and the vibration is transmitted to the convex filter screen and the secondary annular filter screen, so that the adhered impurities can be effectively shaken off, the automatic cleaning of the filter screen is realized, the manual maintenance is reduced, and the service life of the filter screen is prolonged. When the electromagnetic body is in operation, heat is generated due to resistance, the heat is conducted to the separation chamber, the impurities deposited at the bottom of the chamber are heated, the crystals dissolved in the impurities are dissolved and taken away by the salt water again.

[0027] 4. The adsorption block reciprocates under the magnetic force of the electromagnetic body, not only continuously disturbs the mixed liquid in the separation chamber to make the impurities turn over and uniformly heat, but also fully exposes the metal scraps in the disturbance process and adsorbs them by the electromagnetic body, so that the metal impurities and other impurities are effectively separated.

[0028] 5. The control system opens different electric valves according to preset programs in sequence, first discharges nonmetallic impurities carried by mixed brine into the first impurity collecting box, then releases magnetic metal scraps into the second impurity collecting box after the electromagnet is closed, realizes differential treatment of crystal, metal scraps and other impurities, avoids mixed impurities, realizes multistage treatment of impurities, and achieves the effect of effectively controlling and treating industrial sewage. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a whole perspective view of the dechlorination tower of the present application. Figure 2 It is a cross section of the cyclone guide of the present application Figure 1 ; Figure 3 It is a cross section of the cyclone guide of the present application Figure 2 ; Figure 4 It is a partial enlarged view of area A in the present application Figure 2 ; Figure 5 It is a partial enlarged view of area B in the present application Figure 2 ; Figure 6 It is a perspective view of the circulating cleaning assembly of the present application Figure 7 It is a perspective view of the multistage separation assembly of the present application Figure 1 ; Figure 8 It is a perspective view of the multistage separation assembly of the present application Figure 2 ; Figure 9 It is a partial enlarged view of area C in the present application Figure 8 .

[0030] In the figure: 1, tower body; 2, gas phase outlet; 3, brine inlet; 4, brine outlet; 5, cyclone guide; 51, guide shell; 52, rotating inner cylinder; 53, hydraulic impeller; 54, convex filter screen; 55, guide rib; 56, multistage separation assembly; 57, circulating cleaning assembly; 541, inner concave surface; 542, convex surface; 561, outer ring; 562, inner ring; 563, two-stage annular filter screen; 564, separation chamber; 551, groove; 552, oblique chamfer; 521, guide opening; 571, adsorption block; 572, sliding rod; 573, sliding block; 574, spring; 5611, first discharge outlet; 5612, second discharge outlet; 5613, electromagnet; 511, liquid inlet; 512, liquid outlet. DETAILED DESCRIPTION

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figures 1-9 As shown, the present invention provides a dechlorination tower technology solution for industrial wastewater treatment with detection function: it includes a tower body 1, a brine outlet 4 on one side of the tower body 1, and a cyclone guide 5 installed on the brine outlet 4; the cyclone guide 5 includes a guide shell 51, a rotating inner cylinder 52 rotatably installed inside the guide shell 51, a hydraulic impeller 53 installed in the rotating inner cylinder 52, a multi-stage separation component 56 installed inside the guide shell 51, the end of the rotating inner cylinder 52 being rotatably connected to the multi-stage separation component 56, a convex filter screen 54 installed inside the rotating inner cylinder 52, the convex filter screen 54 being used to filter impurities in the brine, a plurality of guide ribs 55 installed on the convex filter screen 54, one end of the guide ribs 55 penetrating through the rotating inner cylinder 52, the guide ribs 55 being used to guide impurities to the multi-stage separation component 56, a plurality of circulating cleaning components 57 installed on the rotating inner cylinder 52, and the multi-stage separation component 56 being used to perform multi-stage separation treatment on the impurities. The dechlorination tower is connected to an external control box, which contains a control system that can operate the entire dechlorination tower.

[0033] During operation, the brine that needs to be dechlorinated is transported to the inlet 511 of the guide shell 51 through an external conveying device. After passing through the hydraulic impeller 53, the brine passes through the convex filter screen 54, and then enters the brine inlet 3 from the outlet 512 of the guide shell 51, and finally enters the tower body 1.

[0034] During this period, the hydraulic impeller 53 rotates under the impact of brine, driving the rotating inner cylinder 52 to rotate synchronously. The rotating inner cylinder 52 then drives the convex filter screen 54 and the guide ribs 55 to rotate. When the convex filter screen 54 filters brine, its arc-shaped geometric structure allows the trapped solid impurities to diffuse radially under the action of hydrodynamics. The rotating convex filter screen 54 and the guide ribs 55 cause the impurities to rotate synchronously, allowing them to enter the groove 551 along the oblique chamfer 552 under the action of centrifugal force. Finally, the impurities are introduced into the separation chamber 564 through the guide port 521 along with some of the brine. This ensures the passability of the main body of the convex filter screen 54 while achieving the purpose of dynamically removing and guiding impurities.

[0035] The multi-stage separation assembly 56 includes an outer ring 561 and an inner ring 562. The outer ring 561 is installed inside the guide shell 51, and the inner ring 562 is rotatably connected to the rotating inner cylinder 52. A secondary annular filter 563 is installed between the outer ring 561 and the inner ring 562. The outer ring 561, the rotating inner cylinder 52, the inner ring 562, and the secondary annular filter 563 together form a separation chamber 564.

[0036] The guide rib 55 is provided with an inclined chamfer 552, the guide rib 55 is provided with a groove 551, the rotating inner cylinder 52 is provided with a plurality of guide ports 521, the guide rib 55 penetrates through the guide port 521 and communicates with the separation chamber 564, and the groove 551 is used for guiding impurities into the separation chamber 564.

[0037] The outer ring 561 is provided with a first discharge port 5611 and a second discharge port 5612 at the bottom end, respectively, the first discharge port 5611 penetrates through the flow guide shell 51, the second discharge port 5612 penetrates through the flow guide shell 51, the first discharge port 5611 is provided with a first electric valve, the second discharge port 5612 is provided with a second electric valve, the first discharge port 5611 is connected with a first impurity collection box, the second discharge port 5612 is connected with a second impurity collection box, the second impurity collection box is used for collecting metal scraps, the outer ring 561 is installed with an electromagnet 5613, and the electromagnet 5613 is located on one side of the second discharge port 5612.

[0038] The electromagnet 5613 is arranged on one side of the second discharge port 5612, so that the metal scraps adsorbed can be discharged from the second discharge port 5612 nearby.

[0039] The circulating cleaning assembly 57 comprises a sliding block 573, the sliding block 573 is slidingly installed in the rotating inner cylinder 52, the sliding block 573 is installed with a sliding rod 572, the sliding rod 572 is slidingly connected with the rotating inner cylinder 52, one end of the sliding rod 572 is installed with an adsorption block 571, the adsorption block 571 is made of adsorbable material, and the sliding block 573 is installed with a spring 574 between the rotating inner cylinder 52.

[0040] When the electromagnet 5613 works, heat is continuously generated under the action of internal resistance, the generated heat is conducted to the separation chamber 564, the impurities precipitated at the bottom of the separation chamber 564 are heated, the crystals in the impurities are dissolved and taken away by the brine. The adsorption block 571 reciprocatingly extends and retracts near the electromagnet 5613, continuously disturbs the surrounding mixed liquid, so that the metal scraps in the impurities are fully adsorbed by the electromagnet 5613 in the stirring, and the crystals in the impurities are uniformly heated.

[0041] After the electromagnet 5613 works for a preset time, the control system opens the first electric valve, part of the brine drives the remaining other impurities to fall from the first electric valve to the first impurity collection box; then, the control system closes the first electric valve and the electromagnet 5613, and opens the second electric valve, after the electromagnet 5613 is closed, the adsorbed metal scraps are released, part of the brine drives the metal scraps to fall into the second impurity collection box, then the second electric valve is closed, so that the metal scraps, crystals and other types of impurities in the impurities are separated by multiple stages. And the whole process can be carried out while the brine is continuously conveyed.

[0042] The flow guide shell 51 has an inlet 511 at one end, and a water turbine 53 is located near the inlet 511, and the flow guide shell 51 has an outlet 512 at the other end, and the outlet 512 is connected with the saltwater inlet 3, and a differential pressure sensor is installed in the flow guide shell 51. The high-pressure end of the differential pressure sensor is communicated with the inlet 511, and the low-pressure end is communicated with the outlet 512, and when the saltwater flows through the convex filter screen 54 and the secondary annular filter screen 563, the resistance of the filter screen will cause a pressure difference between the inlet and the outlet. With the gradual clogging of the filter screen, the pressure difference increases accordingly, and the differential pressure sensor measures the pressure difference between the two ends through the high-pressure end and the low-pressure end, and the control system analyzes the pressure difference signal, so as to detect and judge the clogging state of the filter screen.

[0043] One side of the convex filter screen 54 is a convex surface 542, and a guide rib 55 is installed on the convex surface 542, and the guide rib 55 is tightly attached to the convex surface 542, and the other side of the convex filter screen 54 is an inner concave surface 541, and the inner concave surface 541 faces the saltwater inlet 3.

[0044] The tower body 1 is provided with a gas phase outlet 2 at the top end, and a saltwater outlet 4 at the bottom end.

[0045] The working principle of the application is as follows: during operation, the saltwater to be dechlorinated is conveyed to the inlet 511 of the flow guide shell 51 through an external conveying device, and then passes through the convex filter screen 54 after the water turbine 53, and then enters the saltwater inlet 3 from the outlet 512 of the flow guide shell 51, and finally enters the tower body 1.

[0046] During this period, the water turbine 53 rotates under the impact of the saltwater, and the rotating inner cylinder 52 rotates synchronously under the drive of the water turbine 53, and the convex filter screen 54 and the guide rib 55 rotate under the drive of the rotating inner cylinder 52; when the convex filter screen 54 filters the saltwater, due to its arc-shaped geometric structure, the trapped solid impurities are distributed radially under the action of water power. The rotating convex filter screen 54 and the guide rib 55 drive the impurities to rotate synchronously, so that the impurities enter the groove 551 along the inclined chamfer 552 under the action of centrifugal force, and finally enter the separation chamber 564 together with part of the saltwater through the guide opening 521. This not only ensures the main passability of the convex filter screen 54, but also achieves the purpose of dynamic removal and removal of impurities.

[0047] The impurities and saltwater mixture entering the separation chamber 564 impact on the secondary annular filter screen 563, and the saltwater therein continues to flow through the secondary annular filter screen 563 and flows into the tower body 1, and the impurities are trapped in the separation chamber 564.

[0048] As the impurities intercepted by the secondary annular filter screen 563 and the convex filter screen 54 gradually increase, the impurities around the filter screen increase, causing blockage. The control system detects and judges the degree of blockage through the pressure difference sensor, and opens the electromagnet 5613 when the degree of blockage reaches the critical value. The electromagnet 5613 generates a magnetic force after being energized. When the rotating inner cylinder 52 drives the circulating cleaning assembly 57 to rotate to the vicinity of the electromagnet 5613, the adsorption block 571 approaches the electromagnet 5613 under the action of the magnetic force. When the adsorption block 571 slides in the rotating inner cylinder 52, the sliding block 573 is synchronously slid by the slide rod 572. The sliding block 573 extrudes the slide rod 572. When the adsorption block 571 rotates away from the electromagnet 5613, the spring 574 returns to its original position and brings the adsorption block 571 back to hit the rotating inner cylinder 52, causing the rotating inner cylinder 52 to vibrate. A plurality of circulating cleaning assemblies 57 are alternately hit against the rotating inner cylinder 52 under the magnetic attraction of the electromagnet 5613, causing the rotating inner cylinder 52 to vibrate continuously. The vibration is transmitted to the convex filter screen 54 and the secondary annular filter screen 563, causing the remaining impurities on the filter screen to fall off, achieving the purpose of cleaning the filter screen.

[0049] When the electromagnet 5613 is working, it will continuously generate heat under the action of internal resistance. The generated heat is conducted to the separation chamber 564, heating the impurities deposited at the bottom of the separation chamber 564, dissolving the crystals in the impurities, and being carried away by the brine. The adsorption block 571 repeatedly extends and retracts near the electromagnet 5613, continuously disturbing the surrounding mixed liquid, causing the metal chips in the impurities to be fully adsorbed by the electromagnet 5613 in the stirring process, and causing the crystals in the impurities to be uniformly heated.

[0050] After the electromagnet 5613 works for a predetermined time, the control system opens the first electric valve, and part of the brine carries the remaining other impurities to fall from the first electric valve into the first impurity collection box. Then, the control system closes the first electric valve and the electromagnet 5613, and opens the second electric valve. After the electromagnet 5613 is closed, the adsorbed metal chips lose the constraint, and part of the brine carries the metal chips into the second impurity collection box. Then, the second electric valve is closed, achieving multi-stage separation of metal chips, crystals and other types of impurities. The whole process can be carried out while maintaining continuous brine delivery.

[0051] After the brine enters the tower body 1 from the brine inlet 3, the heating device in the tower body 1 adjusts the brine to a predetermined temperature, and the brine is uniformly sprayed onto the packing layer through the water distributor, forming a liquid film on the surface of the packing. The brine flows from top to bottom. The control system sends air into the tower body 1 through the air feeding device, which is uniformly distributed into the tower through the gas distributor, and fully contacts with the downward liquid in the packing layer, so that the dissolved chlorine is continuously transferred to the gas phase. The chlorine gas is discharged from the gas phase outlet 2 at the top of the tower, enters the cooling and absorption system for treatment and recovery. The dechlorinated brine is cooled by the cooling device and discharged from the brine outlet 4 at the bottom of the tower body 1, achieving the purpose of dechlorination of the brine.

[0052] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. The presently disclosed embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference herein to any prior art is to be taken as an admission that the present application is not entitled to antedate such prior art by virtue of prior application. No reference to an item of prior art in any claim is to be construed as an admission that the present application is not entitled to priority to such prior art by virtue of prior application. No reference in the specification to an item of prior art is to be construed as an admission that the present application is not entitled to priority to such prior art by virtue of prior application. No reference in the specification to an item of prior art is to be construed as an admission that the present application is not entitled to priority to such prior art by virtue of prior application. No reference in the specification to an item of prior art is to be construed as an admission that the present application is not entitled to priority to such prior art by virtue of prior application. No reference in the specification to an item of prior art is to be construed as an admission

Claims

1. A dechlorination tower for industrial wastewater treatment with detection function, characterized in that: The dechlorination tower includes a tower body (1), a brine outlet (4) on one side of the tower body (1), and a cyclone separator (5) installed on the brine outlet (4); the cyclone separator (5) includes a guide shell (51), a rotating inner cylinder (52) is rotatably installed inside the guide shell (51), a hydraulic impeller (53) is installed in the rotating inner cylinder (52), a multi-stage separation assembly (56) is installed inside the guide shell (51), and the end of the rotating inner cylinder (52) is rotatably connected to the multi-stage separation assembly (56). A convex filter screen (54) is installed inside the rotating inner cylinder (52). The convex filter screen (54) is used to filter impurities in the brine. Several guide ribs (55) are installed on the convex filter screen (54). One end of the guide rib (55) passes through the rotating inner cylinder (52). The guide rib (55) is used to guide the impurities to the multi-stage separation component (56). Several circulating cleaning components (57) are installed on the rotating inner cylinder (52). The multi-stage separation component (56) is used to perform multi-stage separation treatment on the impurities.

2. The dechlorination tower for industrial wastewater treatment with detection function according to claim 1, characterized in that: The multi-stage separation component (56) includes an outer ring (561) and an inner ring (562). The outer ring (561) is installed inside the guide shell (51), and the inner ring (562) is rotatably connected to the rotating inner cylinder (52). A secondary annular filter (563) is installed between the outer ring (561) and the inner ring (562). The outer ring (561), the rotating inner cylinder (52), the inner ring (562), and the secondary annular filter (563) constitute a separation chamber (564).

3. The dechlorination tower for industrial wastewater treatment with detection function according to claim 2, characterized in that: The guide rib (55) is provided with a chamfer (552), the guide rib (55) is provided with a groove (551), the rotating inner cylinder (52) is provided with a plurality of guide ports (521), the guide rib (55) passes through the guide ports (521) and communicates with the separation chamber (564), and the groove (551) is used to guide impurities into the separation chamber (564).

4. A dechlorination tower for industrial wastewater treatment with detection function according to claim 2, characterized in that: The bottom end of the outer ring (561) is provided with a first outlet (5611) and a second outlet (5612). The first outlet (5611) passes through the guide shell (51), and the second outlet (5612) passes through the guide shell (51). The first outlet (5611) is provided with a first electric valve, and the second outlet (5612) is provided with a second electric valve. The first outlet (5611) is connected to a first impurity collection box, and the second outlet (5612) is connected to a second impurity collection box. The second impurity collection box is used to collect metal shavings. An electromagnet (5613) is installed inside the outer ring (561), and the electromagnet (5613) is located on one side of the second outlet (5612).

5. A dechlorination tower for industrial wastewater treatment with detection function according to claim 1, characterized in that: The circulating cleaning component (57) includes a sliding block (573) which is slidably installed in the rotating inner cylinder (52). A sliding rod (572) is installed on the sliding block (573) and is slidably connected to the rotating inner cylinder (52). An adsorption block (571) is installed at one end of the sliding rod (572). The adsorption block (571) is made of an adsorbent material. A spring (574) is installed between the sliding block (573) and the rotating inner cylinder (52).

6. A dechlorination tower for industrial wastewater treatment with detection function according to claim 1, characterized in that: One end of the guide shell (51) is the liquid inlet (511), the hydraulic impeller (53) is located at the end close to the liquid inlet (511), the other end of the guide shell (51) is the liquid outlet (512), the liquid outlet (512) is connected to the brine inlet (3), and a differential pressure sensor is installed inside the guide shell (51).

7. A dechlorination tower for industrial wastewater treatment with detection function according to claim 1, characterized in that: One side of the convex filter screen (54) is a raised surface (542), and the guide rib (55) is installed on the raised surface (542). The guide rib (55) is in close contact with the raised surface (542). The other side of the convex filter screen (54) is a concave surface (541), and the concave surface (541) faces the brine inlet (3).

8. A dechlorination tower for industrial wastewater treatment with detection function according to claim 1, characterized in that: The tower body (1) has a gas phase outlet (2) at the top and a brine outlet (4) at the bottom.

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