Carbon-fenton reaction prying device

Abstract

The utility model relates to add carbon Fenton reaction pry equipment belongs to sewage treatment technical field, including box, four bulkheads are fixed in the box, the box is divided into first reaction area, second reaction area, third reaction area, fourth reaction area, fifth reaction area, all be equipped with mechanical stirring device in second reaction area, fourth reaction area and fifth reaction area, the top of second reaction area is connected with ferrous sulfate dosing pipe and hydrogen peroxide dosing pipe, be equipped with activated carbon plate in third reaction area, the top of fourth reaction area is equipped with liquid alkali dosing pipe. 3+ / Fe 2+ The utility model sets up activated carbon plate in the reaction area behind ferrous sulfate dosing pipe and hydrogen peroxide dosing pipe, can promote Fe / Fe Circulation, reduces iron mud, activated carbon surface functional group can catalyze H2O2 decomposition, promotes free radical yield, promotes processing efficiency, whole processing equipment is installed on the box, realizes quick installation, transportation and nimble configuration, satisfies different scene demand.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a carbonized Fenton reaction skid-mounted equipment. Background Technology

[0002] The Fenton reaction relies on the oxidative degradation of pollutants by hydroxyl radicals, but it has the following problems: Fe 3+ It is easy to precipitate and form iron sludge, causing secondary pollution; the utilization rate of H2O2 is low, the free radical lifetime is short, the treatment efficiency is limited, and traditional wastewater treatment equipment is mostly fixed installation, which is difficult to deploy quickly, has poor flexibility, and cannot adapt to temporary or decentralized wastewater treatment needs. Utility Model Content

[0003] Therefore, it is necessary to provide a carbonized Fenton reaction skid-mounted equipment to address the existing technical problems.

[0004] To solve the problems of the existing technology, the technical solution adopted by this utility model is as follows:

[0005] The carbon-added Fenton reaction skid-mounted equipment includes a tank with four fixed partitions inside, dividing the tank into five reaction zones from left to right: a first reaction zone, a second reaction zone, a third reaction zone, a fourth reaction zone, and a fifth reaction zone. Adjacent partitions have staggered flow ports. The first reaction zone is connected to an inlet water pipe and a hydrochloric acid dosing pipe. Mechanical stirring devices are installed in the second, fourth, and fifth reaction zones. The top of the second reaction zone is connected to a ferrous sulfate dosing pipe and a hydrogen peroxide dosing pipe. The third reaction zone contains an activated carbon plate. The top of the fourth reaction zone is connected to a liquid alkali dosing pipe. The fifth reaction zone is connected to an outlet water pipe and a PAM dosing pipe.

[0006] As a preferred option, the bottom of the third reaction zone and the bottom of the fifth reaction zone are respectively equipped with sludge discharge pipe one and sludge discharge pipe two to facilitate the discharge of sludge.

[0007] As a preferred embodiment, a water outlet weir is fixed on the upper side wall of the fifth reaction zone, and a water outlet pipe is connected to the lower part of the water outlet weir for convenient water discharge.

[0008] As a preferred embodiment, the top of the PAM dosing pipe is fixed with a water distribution pipe arranged in the front-to-back direction, and water distribution holes are evenly provided on the upper right side of the water distribution pipe in the front-to-back direction, which can facilitate the mixing of PAM solution with the sewage entering from the fourth reaction zone.

[0009] As a preferred embodiment, the first reaction zone is equipped with a cross-shaped water distribution pipe connected to the inlet pipe. Each cross-shaped water distribution pipe has an L-shaped vortex nozzle fixed at its outer end. The outlet end of the vortex nozzle is equipped with a reducing diameter contraction port. Wastewater entering through the inlet pipe can be sprayed out through the vortex nozzle to generate vortex, increase the stirring effect, and accelerate the mixing of wastewater with the chemical solution added through the hydrochloric acid dosing pipe.

[0010] As a preferred embodiment, a support boss is fixed to the lower inner wall of the third reaction zone. A support cylinder is provided above the support boss. Support recesses for supporting the activated carbon plate are provided at both the bottom and top of the support cylinder. An upper pressure plate and a lower pressure plate for pressing the activated carbon plate are respectively fixed to the outer sides of the upper and lower support recesses by bolts. A replacement opening for removing the support cylinder is provided at the top of the replacement opening, and a sealing plate is provided to close it. The activated carbon plate can be replaced by opening the sealing plate and removing the support cylinder, facilitating the replacement of the activated carbon plate.

[0011] As a preferred embodiment, the top outer side of the replacement opening is provided with a fixed recess, and the outer side of the sealing plate is provided with a fixed flange that is fixed to the fixed recess by bolts. The top of the upper pressure plate is fixed with a pressure rod, and the top of the pressure rod contacts the bottom of the sealing plate. In use, the sealing plate can press down the top of the pressure rod to limit the support cylinder and prevent the support cylinder from moving in the vertical direction.

[0012] The advantages of this utility model compared with the prior art are:

[0013] An activated carbon plate is placed in the reaction zone downstream of the ferrous sulfate dosing tube and the hydrogen peroxide dosing tube. Activated carbon has high adsorption and conductivity, which can promote the reaction of Fe... 3+ / Fe 2+ The system circulates and reduces iron sludge; the functional groups on the surface of activated carbon can catalyze the decomposition of H2O2, increasing the free radical yield and improving the treatment efficiency. Furthermore, ferrous sulfate and hydrogen peroxide are added to the second reaction zone and mixed and stirred before entering the activated carbon plate in the third reaction zone, thus improving the treatment effect. The modular skid-mounted equipment is designed so that the entire treatment equipment is installed on the box, enabling rapid installation, transportation, and flexible configuration to meet the needs of different scenarios. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 yes Figure 1 Partial structural diagram;

[0016] Figure 3 This is a structural diagram of the water distribution pipe.

[0017] Figure 4 This is a structural diagram of the cross-shaped water distribution pipe;

[0018] Figure 5 This is a schematic diagram of the top structure of the cross-shaped water distribution pipe;

[0019] The numbers on the map are:

[0020] 1. Tank body; 2. Ferrous sulfate dosing pipe; 3. Hydrogen peroxide dosing pipe; 4. Mechanical stirring device; 5. Sealing plate; 6. Upper pressure plate; 7. Liquid alkali dosing pipe; 8. Pressure rod; 9. Baffle plate; 10. Outlet weir; 11. Outlet pipe; 12. Sludge discharge pipe II; 13. PAM dosing pipe; 14. Flow port; 15. Activated carbon plate; 16. Sludge discharge pipe I; 17. Support boss; 18. Lower pressure plate; 19. Hydrochloric acid dosing pipe; 20. Inlet pipe; 21. Water distribution pipe; 22. Cross-shaped water distribution pipe; 23. Vortex nozzle; 24. Support cylinder. Detailed Implementation

[0021] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0022] Example 1, Reference Figures 1 to 5 The carbon-added Fenton reaction skid-mounted equipment includes a housing 1. Inside the housing 1, four partitions 9 are fixed, dividing the housing 1 into a first reaction zone, a second reaction zone, a third reaction zone, a fourth reaction zone, and a fifth reaction zone from left to right. Adjacent partitions 9 are staggered with overflow ports 14. The first reaction zone is connected to an inlet pipe 20 and a hydrochloric acid dosing pipe 19. The second, fourth, and fifth reaction zones are all equipped with mechanical stirring devices 4. The top of the second reaction zone is connected to a ferrous sulfate dosing pipe 2 and a hydrogen peroxide dosing pipe 3. The third reaction zone is equipped with an activated carbon plate 15. The top of the fourth reaction zone is equipped with a liquid alkali dosing pipe 7. The fifth reaction zone is connected to an outlet pipe 11 and a PAM dosing pipe 13.

[0023] During operation, wastewater enters the first reaction zone through inlet pipe 20, where it mixes with hydrochloric acid solution entering through hydrochloric acid dosing pipe 19 to adjust the pH value. Then, it enters the second reaction zone from the upper part of the first reaction zone. In the second reaction zone, it is stirred by mechanical stirring device 4 and mixed with ferrous sulfate and hydrogen peroxide entering through ferrous sulfate dosing pipe 2 and hydrogen peroxide dosing pipe 3. Finally, the wastewater enters the third reaction zone from the lower part of the second reaction zone. In the third reaction zone, the activated carbon plate 15 promotes the reaction of Fe... 3+ / Fe 2+ The activated carbon is circulated to reduce iron sludge. The functional groups on the surface of the activated carbon can catalyze the decomposition of H2O2, increase the free radical yield, and improve the treatment efficiency. Then it enters the fourth reaction zone from the upper part of the third reaction zone. In the fourth reaction zone, it is mixed with the alkali solution entering from the liquid alkali dosing pipe 7 to adjust the pH value. Then it enters the fifth reaction zone from the lower part of the fourth reaction zone to mix with the liquid entering from the PAM dosing pipe 13. Finally, it is discharged from the outlet pipe 11.

[0024] In Example 2, based on Example 1, the bottom of the third reaction zone and the bottom of the fifth reaction zone are respectively equipped with sludge discharge pipe 16 and sludge discharge pipe 12. When sludge needs to be discharged, the valves on sludge discharge pipe 16 and sludge discharge pipe 12 can be opened to discharge sludge. Observation ports are left on the box 1 at the top of the first reaction zone, second reaction zone, third reaction zone, fourth reaction zone and fifth reaction zone.

[0025] A effluent weir 10 is fixed to the upper side wall of the fifth reaction zone. An effluent pipe 11 connects to the lower part of the effluent weir 10. The discharged wastewater first enters the effluent weir 10 and then exits through the effluent pipe 11. The entire treatment equipment is installed on the housing 1, which can be hoisted to achieve rapid installation, transportation, and flexible configuration to meet the needs of different scenarios.

[0026] A water distribution pipe 21, arranged in a front-to-back direction, is fixed to the top of the PAM dosing pipe 13. Water distribution holes are evenly distributed along the front-to-back direction on the upper right side of the water distribution pipe 21. Liquid entering through the PAM dosing pipe 13 can be evenly sprayed out from the water distribution holes of the water distribution pipe 21, undergoing preliminary mixing with the wastewater from the fourth reaction zone. Then, it is further mixed by the mechanical stirring device 4 in the fifth reaction zone. The mechanical stirring device 4 includes a stirring shaft, with a stirring motor fixed to the top of the stirring shaft, and a stirrer fixed on the stirring shaft.

[0027] The first reaction zone is equipped with a cross-shaped water distribution pipe 22 connected to the inlet pipe 20. Each end of the cross-shaped water distribution pipe 22 is fixed with an L-shaped vortex nozzle 23, and the outlet end of the vortex nozzle 23 has a reducing diameter constriction port. Wastewater entering through the inlet pipe 20 enters the cross-shaped water distribution pipe 22, then the vortex nozzle 23, and is ejected from the reducing diameter constriction port. The ejected water drives the liquid in the first reaction zone to generate a vortex, accelerating the mixing of the wastewater and hydrochloric acid.

[0028] A support boss 17 is fixed on the lower inner wall of the third reaction zone. A support cylinder 24 is provided above the support boss 17. Support recesses for supporting activated carbon plates 15 are provided at the bottom and top of the support cylinder 24. The upper pressure plate 6 and lower pressure plate 18 for pressing the activated carbon plates 15 are fixed to the outer sides of the upper and lower support recesses by bolts. A replacement opening for removing the support cylinder 24 is provided at the top of the third reaction zone. A sealing plate 5 is provided at the top of the replacement opening to close it.

[0029] The top outer side of the replacement opening is provided with a fixed recess, and the outer side of the sealing plate 5 is provided with a fixed flange that is fixed to the fixed recess by bolts. The top of the upper pressure plate 6 is fixed with a pressure rod 8, and the top of the pressure rod 8 contacts the bottom of the sealing plate 5. When replacing the activated carbon plate 15, the sealing plate 5 can be opened, and then the support cylinder 24 can be lifted out of the replacement opening by pulling the pressure rod 8. Then, the upper pressure plate 6 and the lower pressure plate 18 can be removed, and the activated carbon plate 15 can be removed for replacement.

[0030] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A carbon-adding Fenton reaction skid-mounted equipment, comprising a housing (1), characterized in that: The box (1) is fixed with four partitions (9). The four partitions (9) divide the box (1) into the first reaction zone, the second reaction zone, the third reaction zone, the fourth reaction zone and the fifth reaction zone from left to right. The adjacent partitions (9) are staggered with overflow ports (14). The first reaction zone is connected to the water inlet pipe (20) and the hydrochloric acid dosing pipe (19). The second reaction zone, the fourth reaction zone and the fifth reaction zone are all equipped with mechanical stirring devices (4). The top of the second reaction zone is connected to the ferrous sulfate dosing pipe (2) and the hydrogen peroxide dosing pipe (3). The third reaction zone is equipped with an activated carbon plate (15). The top of the fourth reaction zone is equipped with a liquid alkali dosing pipe (7). The fifth reaction zone is connected to the water outlet pipe (11) and the PAM dosing pipe (13).

2. The carbon-adding Fenton reaction skid-mounted equipment according to claim 1, characterized in that, The bottom of the third reaction zone and the bottom of the fifth reaction zone are respectively provided with mud discharge pipe one (16) and mud discharge pipe two (12).

3. The carbon-adding Fenton reaction skid-mounted equipment according to claim 1, characterized in that, A water outlet weir (10) is fixed on the upper side wall of the fifth reaction zone, and a water outlet pipe (11) is connected to the lower part of the water outlet weir (10).

4. The carbon-adding Fenton reaction skid-mounted equipment according to claim 1, characterized in that, The top of the PAM dosing tube (13) is fixed with a water distribution pipe (21) arranged in the front-to-back direction, and water distribution holes are evenly provided on the upper right side of the water distribution pipe (21) in the front-to-back direction.

5. The carbon-adding Fenton reaction skid-mounted equipment according to claim 1, characterized in that, The first reaction zone is equipped with a cross-shaped water distribution pipe (22) connected to the water inlet pipe (20). The outer ends of the cross-shaped water distribution pipe (22) are all fixed with L-shaped vortex nozzles (23). The water outlet of the vortex nozzles (23) is equipped with a variable diameter contraction port.

6. The carbon-adding Fenton reaction skid-mounted equipment according to claim 1, characterized in that, A support boss (17) is fixed on the lower inner wall of the third reaction zone. A support cylinder (24) is provided above the support boss (17). Support recesses for supporting activated carbon plates (15) are provided at the bottom and top of the support cylinder (24). An upper pressure plate (6) and a lower pressure plate (18) for pressing activated carbon plates (15) are respectively fixed to the outer sides of the upper and lower support recesses by bolts. A replacement opening for removing the support cylinder (24) is provided at the top of the third reaction zone. A sealing plate (5) is provided at the top of the replacement opening to close it.

7. The carbon-adding Fenton reaction skid-mounted equipment according to claim 6, characterized in that, The top outer side of the opening is provided with a fixed recess, and the outer side of the closing plate (5) is provided with a fixed flange that is fixed to the fixed recess by bolts. The top of the upper pressure plate (6) is fixed with a pressure rod (8), and the top of the pressure rod (8) is in contact with the bottom of the closing plate (5).

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