A hydrogen peroxide waste liquid treatment rapid reaction box

Abstract

The utility model provides a kind of hydrogen peroxide waste liquid treatment rapid reaction box, including box, top cover, bridge, the top of the box is fixedly connected with top cover, the top of the top cover is fixedly connected with bridge, eccentric position is fixedly connected with support at the top surface of the bridge, the top surface of the support is equipped with speed reducer, the center of the top surface of the box is fixedly connected with reducing agent injection tube, the bottom end of the reducing agent injection tube is movably connected with live joint. The utility model has the advantages of: it can realize the rapid treatment of hydrogen peroxide waste liquid, after waste liquid enters the box through waste liquid input pipe, reducing agent is finally output to each layer of waste liquid from liquid outlet through the waterway of reducing agent injection tube, live joint, crossbeam, stirring plate, reducing agent can fully, quickly and waste liquid contact reaction, cooperate the stirring action of stirring plate, can achieve the purpose of rapid treatment hydrogen peroxide waste liquid, better ventilation environment, waste liquid treatment speed is further improved.

Description

Technical Field

[0001] This utility model relates to the field of industrial waste liquid treatment technology, and in particular to a rapid reaction box for treating hydrogen peroxide waste liquid. Background Technology

[0002] Hydrogen peroxide, also known as hydrogen peroxide solution, has the chemical formula H₂O₂. It is a common chemical substance with various properties and uses. Appearance: a colorless, transparent liquid; pure hydrogen peroxide is a pale blue, viscous liquid. Odor: It has a slightly pungent odor. Solubility: It is soluble in polar substances such as alcohols and ethers, but sparingly soluble in non-polar substances such as benzene and petroleum ether. It is miscible with water in any proportion. Stability: It is highly unstable and readily decomposes and releases heat under conditions of light, heat, or in the presence of certain metal salts (such as ferric chloride, FeCl₃) or metal oxides (such as manganese dioxide, MnO₂).

[0003] Hydrogen peroxide (H2O2) is widely used in industrial production as a strong oxidant, and its wastewater treatment requires strict control. The traditional treatment method is to directly add or drip a reducing agent into the wastewater. However, the direct addition of the reducing agent requires a long time for deep reaction with the hydrogen peroxide wastewater, resulting in slow reaction speed and uneven dispersion of the reducing agent, which affects treatment efficiency and safety. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to provide a rapid reaction box for treating hydrogen peroxide waste liquid, so as to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of the present invention provides a rapid reaction box for treating hydrogen peroxide waste liquid, including a box body, a top cover, and a cable tray. The top cover is fixedly connected to the top of the box body, and the cable tray is fixedly connected to the top of the top cover. A bracket is fixedly connected to the eccentric position on the top surface of the cable tray, and a geared motor is installed on the top surface of the bracket.

[0007] A reducing agent injection pipe is fixedly connected to the center of the top surface of the box, and a flexible connector is movably connected to the bottom end of the reducing agent injection pipe.

[0008] The outer surface of the live joint and the end of the output end of the geared motor are fixedly connected to a synchronous pulley, and the outer surface of the synchronous pulley is movably connected to a synchronous belt;

[0009] The bottom of the union is fixedly connected to a crossbeam, and both ends of the bottom surface of the crossbeam are fixedly connected to a stirring plate. Several liquid outlets are fixedly connected to the front and back of the stirring plate.

[0010] An air inlet pipe and a closed air outlet pipe are installed at the highest point on the side of the housing, and the input end of the air inlet pipe is connected to a fan.

[0011] A waste liquid inlet pipe is fixedly connected to the top surface of the top cover.

[0012] Preferably, as described in any of the above embodiments, an output pipe is installed at the bottom of the housing, and a manual valve is installed on this output pipe.

[0013] The above technical solution is adopted: This device is specifically designed for the rapid treatment of hydrogen peroxide waste liquid. The treatment method is to use a reducing agent to react with the hydrogen peroxide waste liquid, reducing the hydrogen peroxide into water and oxygen, thereby reducing its oxidizing properties and harmfulness.

[0014] When treating waste liquid, this device requires a good ventilation environment, with air supplied by a fan, flowing through the inside of the chamber and exiting from a closed air outlet duct.

[0015] The core advantage of this device is that it can quickly treat hydrogen peroxide waste liquid. After the waste liquid enters the tank through the waste liquid inlet pipe, the reducing agent is discharged from the outlet to each layer of the waste liquid through the reducing agent injection pipe, union joint, crossbeam, and agitator. The reducing agent can fully and quickly contact and react with the waste liquid. With the stirring action of the agitator, the purpose of quickly treating hydrogen peroxide waste liquid can be achieved. With a better ventilation environment, the waste liquid treatment speed is further improved.

[0016] Preferably, in any of the above solutions, the cable tray is welded to the top surface of the top cover, and the geared motor is installed vertically.

[0017] Main structure of the device: The container is a cylindrical container made of stainless steel, with a top cover connected by a flange to form a sealed space. A cable tray is welded to the top cover to form a support structure, and a bracket is installed eccentrically on the cable tray to support the geared motor. A discharge pipe with a manual valve is located at the bottom of the container for convenient, metered discharge of treated waste liquid.

[0018] The stirring plate is made of porous titanium alloy plate.

[0019] Preferably, in any of the above schemes, the reducing agent injection pipe, the union joint, the crossbeam, and the agitator are connected by internal water channels.

[0020] Waste liquid injection stage: Hydrogen peroxide waste liquid is quantitatively injected into the tank through the waste liquid inlet pipe, and the liquid level is controlled at 80% of the tank height;

[0021] During the reagent addition stage: The reducing agent (such as FeSO4 solution) is injected through the reducing agent injection pipe, diverted to two stirring plates by the crossbeam, and sprayed out radially from the liquid outlet;

[0022] Mixing and reaction stage: The geared motor drives the crossbeam to rotate the stirring plate, achieving a triple effect:

[0023] Mechanical stirring promotes mass transfer in the liquid phase;

[0024] The centrifugal force of rotation causes the reducing agent to diffuse uniformly in the radial direction;

[0025] The direction of the spray and the direction of stirring create convection, increasing the probability of contact.

[0026] Gas emission stage: The fan continuously inputs air, and the airflow path is as follows:

[0027] Air inlet duct → Liquid surface space → Carrying oxygen → Air outlet duct → Waste gas treatment;

[0028] The gas residence time should be controlled between 15 and 30 seconds.

[0029] Preferably, in any of the above schemes, the liquid outlets are arranged linearly on both sides of the stirring plate, and the ends of the liquid outlets are designed to be tapered to improve the output pressure and speed. The output end of the blower is connected to the air inlet pipe.

[0030] Preferably, in any of the above solutions, the end of the closed air outlet duct is connected to a closed pipeline to achieve closed gas flow.

[0031] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0032] This rapid reaction chamber for treating hydrogen peroxide waste liquid, through the coordinated arrangement of a bridge, support, geared motor, reducing agent injection pipe, union joint, synchronous pulley, synchronous belt, crossbeam, stirring plate, liquid outlet, air inlet pipe, closed air outlet pipe, and fan, enables the rapid treatment of hydrogen peroxide waste liquid. After the waste liquid enters the chamber through the waste liquid inlet pipe, the reducing agent is discharged from the liquid outlet to each layer of the waste liquid through the water path of the reducing agent injection pipe, union joint, crossbeam, and stirring plate. Although the reducing agent is still used to treat the hydrogen peroxide waste liquid, the design of this device allows the reducing agent to fully and quickly come into deep contact with the waste liquid for reaction. Combined with the stirring action of the stirring plate, the purpose of rapidly treating hydrogen peroxide waste liquid can be achieved. With a better ventilation environment, the waste liquid treatment speed is further improved.

[0033] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0034] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0035] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0036] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0037] Figure 3 This is a structural schematic diagram of the present invention from a third-view perspective;

[0038] Figure 4 This is a schematic diagram of a partial internal structure of the present invention.

[0039] In the diagram: 1-box body, 2-top cover, 3-bridge, 4-support, 5-gear motor, 6-reducing agent injection pipe, 7-union joint, 8-synchronous pulley, 9-synchronous belt, 10-crossbeam, 11-stirring plate, 12-liquid outlet, 13-air inlet pipe, 14-closed air outlet pipe, 15-fan, 16-waste liquid input pipe. Detailed Implementation

[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] like Figure 1-4 As shown, this rapid reaction box for treating hydrogen peroxide waste liquid includes a box body 1, a top cover 2, and a cable tray 3. The top cover 2 is fixedly connected to the top of the box body 1, and the cable tray 3 is fixedly connected to the top of the top cover 2. A bracket 4 is fixedly connected to the eccentric position on the top surface of the cable tray 3, and a geared motor 5 is installed on the top surface of the bracket 4.

[0043] A reducing agent injection pipe 6 is fixedly connected to the center of the top surface of the box 1, and a flexible connector 7 is movably connected to the bottom end of the reducing agent injection pipe 6.

[0044] A timing pulley 8 is fixedly connected to the outer surface of the union 7 and the end of the output end of the geared motor 5, and a timing belt 9 is movably connected to the outer surface of the timing pulley 8;

[0045] A crossbeam 10 is fixedly connected to the bottom of the union joint 7. A stirring plate 11 is fixedly connected to both ends of the bottom surface of the crossbeam 10. Several liquid outlets 12 are fixedly connected to the front and back of the stirring plate 11.

[0046] An air inlet pipe 13 and a closed air outlet pipe 14 are installed at the highest point on the side of the housing 1. The input end of the air inlet pipe 13 is connected to a fan 15.

[0047] Waste liquid inlet pipe 16 is fixedly connected to the top surface of the top cover 2.

[0048] Example 1: An output pipe is installed at the bottom of the housing 1, and a manual valve is installed on this output pipe. This device is specifically designed for the rapid treatment of hydrogen peroxide waste liquid. The treatment method involves using a reducing agent to react with the hydrogen peroxide waste liquid, reducing the hydrogen peroxide to water and oxygen, thereby reducing its oxidizing properties and harmfulness.

[0049] When treating waste liquid, this device requires a good ventilation environment, supplied by a fan 15. The air flows through the inside of the housing 1 and exits from the closed exhaust duct 14. The cable tray 3 is welded to the top surface of the top cover 2, and the geared motor 5 is installed vertically.

[0050] Example 2: Main Structure of the Device: The container 1 is a cylindrical container made of stainless steel, with a top cover 2 connected to the top via a flange to form a sealed space. A cable tray 3 is welded onto the top cover 2 to form a support structure, and a bracket 4 is installed at an eccentric position on the cable tray 3 to support the geared motor 5. The bottom of the container 1 is equipped with a discharge pipe with a manual valve for convenient quantitative discharge of treated waste liquid.

[0051] The stirring plate 11 is made of porous titanium alloy plate. The reducing agent injection pipe 6, union joint 7, crossbeam 10, and internal water passage of the stirring plate 11 are connected. The liquid outlets 12 are linearly arranged on both sides of the stirring plate 11, with tapered ends to improve output pressure and speed. The output end of the blower 15 is connected to the air inlet pipe 13. The closed air outlet pipe 14 is connected to a closed pipeline at its end to achieve closed gas flow.

[0052] The implementation method of this device is as follows: Waste liquid injection: Open the pneumatic valve of waste liquid input pipe 16 and inject hydrogen peroxide waste liquid (H2O2 concentration ≤30%) at a flow rate of 2m³ / h. The liquid level will automatically close when it reaches 1400mm.

[0053] For reagent addition, start the reducing agent metering pump and inject FeSO4 solution at a liquid / waste liquid volume ratio of 1:8. The liquid solution flows through the following path: injection pipe → central channel of union 7 → inner cavity of crossbeam 10 → flow channel of stirring plate 11 → sprayed from outlet 12 at a pressure of 0.8MPa in a 120° cone angle.

[0054] The mixing reaction is initiated by starting the geared motor 5, which drives the crossbeam 10 to rotate at 45 r / min, forming a mixture. Mechanical stirring is also achieved by the stirring plate 11 generating a tangential flow velocity of 3 m / s and a Reynolds number Re > 10. 4 To achieve full turbulence; centrifugal diffusion: the 150g centrifugal acceleration generated by rotation causes the agent to penetrate the liquid layer radially;

[0055] Gas-liquid separation is initiated by starting fan 15, allowing air to enter tangentially through inlet duct 13 at a flow rate of 15 m / s. The oxygen generated in the reaction is discharged through outlet duct with the airflow, and the gas residence time is controlled at 25 ± 5 seconds.

[0056] Post-treatment stage reaction endpoint determination: When the ORP sensor detects a potential value > 450mV, the H2O2 decomposition rate is determined to be > 99%. Discharge of treated liquid: Slowly open the ball valve to discharge the treated liquid into the neutralization tank at a flow rate of 0.5m³ / h. System flushing: Inject pure water and run for 10 minutes to prevent crystallization from clogging the outlet.

[0057] The working principle of this utility model is as follows:

[0058] Waste liquid injection stage: Hydrogen peroxide waste liquid is quantitatively injected into tank 1 through waste liquid inlet pipe 16, and the liquid level is controlled at 80% of the tank height;

[0059] During the reagent addition stage: The reducing agent (such as FeSO4 solution) is injected through the reducing agent injection pipe 6, and then diverted to the two stirring plates 11 via the crossbeam 10, and sprayed out radially from the liquid outlet 12;

[0060] Mixing and reaction stage: The geared motor 5 drives the crossbeam 10 to rotate the stirring plate 11, achieving a triple effect:

[0061] Mechanical stirring promotes mass transfer in the liquid phase;

[0062] The centrifugal force of rotation causes the reducing agent to diffuse uniformly in the radial direction;

[0063] The direction of the spray and the direction of stirring create convection, increasing the probability of contact.

[0064] Gas emission stage: Fan 15 continuously inputs air, and the airflow path is as follows:

[0065] Air inlet 13 → Liquid surface space → Carrying oxygen → Air outlet 14 → Waste gas treatment;

[0066] The gas residence time should be controlled between 15 and 30 seconds.

[0067] Compared with the prior art, the present invention has the following advantages:

[0068] This rapid reaction chamber for treating hydrogen peroxide waste liquid, through the coordinated arrangement of a bridge frame 3, support 4, geared motor 5, reducing agent injection pipe 6, union joint 7, synchronous pulley 8, synchronous belt 9, crossbeam 10, stirring plate 11, liquid outlet 12, air inlet pipe 13, closed air outlet pipe 14, and fan 15, can achieve rapid treatment of hydrogen peroxide waste liquid. After the waste liquid enters the chamber 1 through the waste liquid inlet pipe 16, the reducing agent is output to each layer of waste liquid through the water path of the reducing agent injection pipe 6, union joint 7, crossbeam 10, and stirring plate 11, and finally output from the liquid outlet 12. The reducing agent can fully and quickly contact and react with the waste liquid. With the stirring action of the stirring plate 11, the purpose of rapidly treating hydrogen peroxide waste liquid can be achieved. With a good ventilation environment, the waste liquid treatment speed is further improved.

Claims

1. A rapid reaction chamber for treating hydrogen peroxide waste liquid, characterized in that, The device includes a housing, a top cover, and a cable tray. The top cover is fixedly connected to the top of the housing, and the cable tray is fixedly connected to the top of the top cover. A bracket is fixedly connected to the eccentric position on the top surface of the cable tray, and a geared motor is installed on the top surface of the bracket. A reducing agent injection pipe is fixedly connected to the center of the top surface of the box, and a flexible connector is movably connected to the bottom end of the reducing agent injection pipe. The outer surface of the live joint and the end of the output end of the geared motor are fixedly connected to a synchronous pulley, and the outer surface of the synchronous pulley is movably connected to a synchronous belt; The bottom of the union is fixedly connected to a crossbeam, and both ends of the bottom surface of the crossbeam are fixedly connected to a stirring plate. Several liquid outlets are fixedly connected to the front and back of the stirring plate. An air inlet pipe and a closed air outlet pipe are installed at the highest point on the side of the housing, and the input end of the air inlet pipe is connected to a fan. A waste liquid inlet pipe is fixedly connected to the top surface of the top cover.

2. The rapid reaction chamber for treating hydrogen peroxide waste liquid as described in claim 1, characterized in that: An output pipe is installed at the bottom of the housing, and a manual valve is installed on this output pipe.

3. The rapid reaction chamber for treating hydrogen peroxide waste liquid as described in claim 2, characterized in that: The bridge frame is welded to the top surface of the top cover, and the geared motor is installed vertically.

4. The rapid reaction chamber for treating hydrogen peroxide waste liquid as described in claim 3, characterized in that: The reducing agent injection pipe, union joint, crossbeam, and stirring plate are connected by internal water channels.

5. The rapid reaction chamber for treating hydrogen peroxide waste liquid as described in claim 4, characterized in that: The liquid outlets are arranged linearly on both sides of the stirring plate, and the ends of the liquid outlets are designed to be tapered. The output end of the blower is connected to the air inlet pipe.

6. The rapid reaction chamber for treating hydrogen peroxide waste liquid as described in claim 5, characterized in that: The closed air outlet duct is connected to a closed pipeline at its end.

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