Automatic neutralization device for acidic or alkaline wastewater in laboratory

Abstract

The utility model discloses an automatic neutralization device for laboratory acidic or alkaline wastewater, which comprises a neutralization kettle and a motor, one end of the outer side of the neutralization kettle is fixedly connected with a support stand, one end above the support stand is fixedly connected with a controller, one end above the support stand is fixedly connected with a pH value monitor, one end of the inner wall of the neutralization kettle is fixedly connected with a water inlet pipe, and the other end of the inner wall of the neutralization kettle is fixedly connected with a water outlet pipe. One end of the water inlet pipe is connected with an electromagnetic flowmeter through a flange, one end of the electromagnetic flowmeter is connected with a water inlet connecting pipe through a flange, a mixing mechanism is arranged on the inner side of the neutralization kettle, one end of the top of the neutralization kettle is fixedly connected with a bracket, and one end of the bracket is fixedly connected with an agent storage tank; wastewater is introduced through the water inlet connecting pipe and enters the neutralization kettle through the water inlet pipe after the flow velocity and flow are measured through the electromagnetic flowmeter, the controller judges whether a neutralizing agent needs to be put or not according to real-time data of the pH value monitor, and when the neutralizing agent needs to be put, the electromagnetic valve is opened, and the neutralizing agent is uniformly scattered around the stirring blades through the specially designed pipeline; the mixing efficiency is obviously improved, and low-efficiency stirring is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of acid and alkaline wastewater neutralization equipment, specifically an automatic neutralization device for laboratory acidic or alkaline wastewater. Background Technology

[0002] Laboratory wastewater often contains high concentrations of acidic and alkaline substances. If these substances are discharged directly into the environment without treatment, they will cause serious pollution to water bodies, soil, and air. Automatic neutralization devices convert acidic and alkaline substances in wastewater into harmless salts and water through neutralization reactions, thereby ensuring that the wastewater meets safety standards before discharge and avoiding environmental pollution problems.

[0003] Automatic neutralization devices for acidic or alkaline wastewater can automatically detect the pH value of the wastewater and automatically adjust the dosage of acid-base neutralizing agent according to the detection results to ensure that the pH value of the wastewater meets the discharge standards or subsequent treatment requirements. However, most existing automatic wastewater neutralization devices rely mainly on stirring structures to mix the neutralizing agent with the wastewater after automatic feeding. This mixing method is relatively simple and may reduce mixing efficiency. Utility Model Content

[0004] The purpose of this invention is to address the problem that existing automatic wastewater neutralization devices, after automatically dispensing the neutralizing agent, mostly rely on a stirring structure to mix it with the wastewater. This mixing method is relatively simple and may reduce mixing efficiency. Therefore, this invention provides an automatic neutralization device for laboratory acidic or alkaline wastewater.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic neutralization device for laboratory acidic or alkaline wastewater, comprising: a neutralization vessel and a motor; a support frame is fixedly connected to one end of the outer side of the neutralization vessel; a controller is fixedly connected to one end of the support frame; a pH monitor is fixedly connected to one end of the support frame; a water inlet pipe is fixedly connected to one end of the inner wall of the neutralization vessel; an electromagnetic flow meter is connected to one end of the water inlet pipe via a flange; a water inlet connection pipe is connected to one end of the electromagnetic flow meter via a flange; a mixing mechanism is provided inside the neutralization vessel; a bracket is fixedly connected to one end of the top of the neutralization vessel; a storage tank is fixedly connected to one end of the bracket; a solenoid valve is fixedly connected to one end of the storage tank; and a discharge mechanism is provided at the bottom of the solenoid valve.

[0006] As a further embodiment of this utility model: the mixing mechanism includes a rotating shaft sealing sleeve, a long shaft, and stirring blades. The rotating shaft sealing sleeve is rotatably connected to the middle of the bottom of the neutralization vessel. The long shaft is fixedly connected to the inner side of the rotating shaft sealing sleeve and extends into the interior of the neutralization vessel. The other end of the long shaft is fixedly connected to the output end of a motor. The stirring blades are fixedly connected to one end of the outer side of the long shaft. A connecting fixing rod, a rotating ring, and a wall-hanging strip are also included. The connecting fixing rod is fixedly connected to the lower end of the outer side of the long shaft. The rotating ring is rotatably connected to one end of the inner side of the neutralization vessel. The wall-hanging strip is fixedly connected to one end of the connecting fixing rod.

[0007] As a further embodiment of this utility model: the discharging mechanism includes a discharging pipe, a bell-shaped tube shell, and a connecting rod. The discharging pipe is fixedly connected to one end of the bottom of the solenoid valve, the bell-shaped tube shell is fixedly connected to one end of the bottom of the discharging pipe, and the connecting rod is fixedly connected to one end of the inner side of the bell-shaped tube shell; a bell-shaped inner tube and a semi-circular top, the bell-shaped inner tube being disposed inside the bell-shaped tube shell and fixedly connected to the connecting rod, and the semi-circular top being fixedly connected to the top of the bell-shaped inner tube.

[0008] As a further embodiment of this utility model: a liquid valve is fixedly connected to one end of the bottom of the neutralization vessel, and a water outlet pipe is fixedly connected to one end of the liquid valve.

[0009] As a further embodiment of this utility model: the pH monitor, the electromagnetic flowmeter and the electromagnetic valve are all electrically connected to the controller, and the pH monitor is provided with a pH sensor at one end, which is located at the bottom of the neutralization vessel.

[0010] As a further improvement of this utility model, the number of agitating blades is provided in multiple sets, which are symmetrically arranged at multiple ends on the outer side of the long shaft.

[0011] As a further improvement of this utility model: the number of rotating rings is provided in two sets, which are symmetrically arranged at both ends of the inner side of the neutralization vessel. The number of connecting fixing rods and wall hanging strips is provided in multiple sets, and the multiple sets of wall hanging strips are fixedly connected between the two sets of rotating rings.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, wastewater is introduced through an inlet pipe. After the flow rate is measured by an electromagnetic flow meter, the wastewater enters the neutralization vessel through the inlet pipe. The controller determines whether a neutralizing agent needs to be added based on real-time data from a pH monitor. When addition is required, the solenoid valve opens, and the neutralizing agent is evenly distributed around the stirring blades through a specially designed pipeline, significantly improving mixing efficiency and avoiding inefficient stirring. Subsequently, the motor drives the stirring blades and accessories to rotate, quickly mixing the wastewater and neutralizing agent. The movement of the rotating ring and the wall-mounted strips enhances the edge stirring effect, ensuring a full reaction. At the same time, the wall-mounted strips scrape off the adhering substances on the inner wall, preventing wall adhesion, thereby improving neutralization efficiency and keeping the equipment clean. Attached Figure Description

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

[0015] Figure 2 This is a schematic diagram of the neutralization vessel in this utility model;

[0016] Figure 3 This is a schematic diagram of the electromagnetic flowmeter in this utility model;

[0017] Figure 4 This is a schematic diagram of the mixing mechanism in this utility model;

[0018] Figure 5 This is a schematic diagram of the storage tank in this utility model;

[0019] Figure 6 This is a schematic diagram of the material discharge mechanism in this utility model.

[0020] In the diagram: 1. Neutralization vessel; 2. Motor; 3. Support frame; 4. Controller; 5. pH monitor; 6. Inlet pipe; 7. Electromagnetic flow meter; 8. Inlet connecting pipe; 9. Mixing mechanism; 901. Rotary shaft sealing sleeve; 902. Long shaft; 903. Stirring blade; 904. Connecting fixing rod; 905. Rotary ring; 906. Wall hanging strip; 10. Support; 11. Storage tank; 12. Solenoid valve; 13. Discharge mechanism; 1301. Discharge pipe; 1302. Bell-shaped shell; 1303. Connecting rod; 1304. Bell-shaped inner tube; 1305. Semi-circular top; 14. Liquid valve; 15. Outlet pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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 based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0023] Reference Figures 1 to 6 In this embodiment of the present invention, an automatic neutralization device for laboratory acidic or alkaline wastewater includes: a neutralization vessel 1 and a motor 2. The neutralization vessel 1 serves as the main container for holding the wastewater to be treated, and the motor 2 serves as the driving source to provide power. A support frame 3 is fixedly connected to one end of the neutralization vessel 1 to support and fix the neutralization vessel 1 and other related equipment. A controller 4 is fixedly connected to one end of the support frame 3 as the core control unit, and a pH value monitor 5 is fixedly connected to one end of the support frame 3 to monitor the pH value of the wastewater in the neutralization vessel 1 in real time.

[0024] One end of the inner wall of the neutralization vessel 1 is fixedly connected to a water inlet pipe 6, which can introduce the wastewater to be treated into the interior of the neutralization vessel 1. One end of the water inlet pipe 6 is connected to an electromagnetic flow meter 7 through a flange. The electromagnetic flow meter 7 measures and records the flow rate and flow of the wastewater. One end of the electromagnetic flow meter 7 is connected to a water inlet connection pipe 8 through a flange. The wastewater discharged from the laboratory is introduced through the water inlet connection pipe 8.

[0025] The neutralization vessel 1 is equipped with a mixing mechanism 9 inside to stir or mix wastewater and neutralizing agent to ensure that the two react fully. A support 10 is fixedly connected to one end of the top of the neutralization vessel 1, and a storage tank 11 is fixedly connected to one end of the support 10. The storage tank 11 is supported by the support 10 to ensure its stability. The storage tank 11 stores the acid and alkali agents used to neutralize the wastewater. A solenoid valve 12 is fixedly connected to one end of the bottom of the storage tank 11 to control the amount of neutralizing agent added. The amount is adjusted according to the instructions of the controller 4. A discharge mechanism 13 is provided at the bottom of the solenoid valve 12 to ensure that the neutralizing agent is accurately added into the neutralization vessel 1. The pH value monitor 5, the electromagnetic flow meter 7, and the solenoid valve 12 are all electrically connected to the controller 4. The pH value monitor 5 is equipped with a pH value sensor at one end and is located at the bottom of the neutralization vessel 1.

[0026] Reference Figures 1 to 4 The mixing mechanism 9 includes a rotating shaft sealing sleeve 901, a long shaft 902, and an agitator blade 903. The rotating shaft sealing sleeve 901 is rotatably connected to the middle of the bottom of the neutralization vessel 1. The long shaft 902 is fixedly connected to the inner side of the rotating shaft sealing sleeve 901 and extends into the interior of the neutralization vessel 1. The other end of the long shaft 902 is fixedly connected to the output end of the motor 2. The rotating shaft sealing sleeve 901 allows the long shaft 902 to rotate and also serves to seal and prevent leakage. The agitator blade 903 is fixedly connected to one end of the long shaft 902. The motor 2 drives the agitator blade 903 to rotate inside the neutralization vessel 1 to ensure that the wastewater and the neutralizing agent can be mixed evenly in the neutralization vessel 1.

[0027] The system consists of a connecting rod 904, a rotating ring 905, and a wall-hanging strip 906. The connecting rod 904 is fixedly connected to the lower outer end of the long shaft 902. The rotating ring 905 is rotatably connected to one end of the inner side of the neutralization vessel 1. The wall-hanging strip 906 is fixedly connected to one end of the connecting rod 904. Through the connection of the connecting rod 904, the rotating ring 905, and the wall-hanging strip 906, the long shaft 902 drives the rotation, thereby agitating the edge of the wastewater inside the neutralization vessel 1 and helping to scrape off the wastewater or neutralizing agent adhering to the inner wall of the neutralization vessel 1, ensuring more thorough mixing. There are multiple sets of stirring blades 903, symmetrically arranged at multiple ends on the outer side of the long shaft 902. There are two sets of rotating rings 905, symmetrically arranged at both ends on the inner side of the neutralization vessel 1. There are multiple sets of both the connecting rod 904 and the wall-hanging strip 906, with multiple sets of wall-hanging strips 906 fixedly connected between two sets of rotating rings 905.

[0028] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6The discharge mechanism 13 includes a discharge pipe 1301, a bell-shaped shell 1302, and a connecting rod 1303. The discharge pipe 1301 is fixedly connected to one end of the bottom of the solenoid valve 12 as a channel for conveying the neutralizing agent. The bell-shaped shell 1302 is fixedly connected to one end of the bottom of the discharge pipe 1301, forming a bell-shaped structure, which helps the neutralizing agent to be more evenly dispersed in the neutralization vessel 1 when it is added. The connecting rod 1303 is fixedly connected to one end of the inner side of the bell-shaped shell 1302.

[0029] The bell-shaped inner tube 1304 and the semi-circular top 1305 are arranged inside the bell-shaped shell 1302 and are fixedly connected to the connecting rod 1303. The bell-shaped inner tube 1304 is supported and fixed inside the bell-shaped shell 1302 by the connecting rod 1303. The semi-circular top 1305 is fixedly connected to the top of the bell-shaped inner tube 1304. The neutralizing agent falls onto the semi-circular top 1305 through the outlet pipe 1301 and slides into the cavity between the bell-shaped inner tube 1304 and the bell-shaped shell 1302, thereby promoting the uniform distribution of the neutralizing agent in the neutralization vessel 1.

[0030] Reference Figure 1 and Figure 2 A liquid valve 14 is fixedly connected to one end of the bottom of the neutralization vessel 1, and a water outlet pipe 15 is fixedly connected to the other end of the liquid valve 14. After the wastewater is neutralized and mixed evenly, it can be smoothly discharged from the bottom of the neutralization vessel 1 through the liquid valve 14 and the water outlet pipe 15, avoiding residue and dead corners.

[0031] The working principle of this utility model is as follows:

[0032] Step 1: Wastewater is introduced into the electromagnetic flowmeter 7 and the inlet pipe 6 through the inlet connection pipe 8. After the electromagnetic flowmeter 7 measures and records the flow rate and flow volume, the wastewater enters the neutralization tank 1. The controller 4 determines whether to add neutralizing agent based on the real-time pH data of the wastewater transmitted by the pH monitor 5. When it is necessary to add neutralizing agent, the controller 4 sends a command to the solenoid valve 12, which opens. The neutralizing agent falls from the storage tank 11 through the outlet pipe 1301 onto the semi-circular top 1305, and then slides evenly from the semi-circular top 1305 into the annular cavity between the bell-shaped inner tube 1304 and the bell-shaped tube shell 1302. The neutralizing agent is further dispersed in the annular cavity and finally evenly dispersed around the stirring blade 903. This can improve the mixing efficiency of the neutralizing agent and the wastewater, thereby improving the neutralization efficiency and avoiding the low efficiency caused by relying solely on the stirring structure for mixing.

[0033] Step two: After the neutralizing agent is evenly dispersed, the long shaft 902 is driven to rotate by motor 2, which in turn drives the stirring blade 903, connecting fixing rod 904, rotating ring 905, and wall-hanging strip 906 to move together. The rotation of the stirring blade 903 generates a stirring effect, mixing the wastewater with the evenly dispersed neutralizing agent, thereby accelerating the mixing effect. At the same time, the movement of the rotating ring 905 and wall-hanging strip 906 further enhances the stirring effect on the wastewater at the edge of the neutralization vessel 1, ensuring that the wastewater and neutralizing agent can fully contact and react. In addition, the wall-hanging strip 906 helps to scrape off the wastewater or neutralizing agent adhering to the inner wall of the neutralization vessel 1, preventing the phenomenon of wastewater sticking to the wall of the neutralization vessel 1 after neutralization and discharge.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic neutralization device for laboratory acidic or alkaline wastewater, characterized in that, include: The neutralization vessel (1) and motor (2) are provided. A support frame (3) is fixedly connected to one end of the outer side of the neutralization vessel (1). A controller (4) is fixedly connected to one end of the support frame (3). A pH value monitor (5) is fixedly connected to one end of the support frame (3). A water inlet pipe (6) is fixedly connected to one end of the inner wall of the neutralization vessel (1). An electromagnetic flow meter (7) is connected to one end of the water inlet pipe (6) through a flange. A water inlet connection pipe (8) is connected to one end of the electromagnetic flow meter (7) through a flange. A mixing mechanism (9) is provided inside the neutralization vessel (1). A bracket (10) is fixedly connected to one end of the top of the neutralization vessel (1). A storage tank (11) is fixedly connected to one end of the bracket (10). A solenoid valve (12) is fixedly connected to one end of the storage tank (11). A discharge mechanism (13) is provided at the bottom of the solenoid valve (12).

2. The automatic neutralization device for laboratory acidic or alkaline wastewater according to claim 1, characterized in that, The hybrid mechanism (9) includes: The rotating shaft sealing sleeve (901), the long shaft rod (902), and the stirring blade (903) are rotatably connected to the middle of the bottom of the neutralization vessel (1). The long shaft rod (902) is fixedly connected to the inner side of the rotating shaft sealing sleeve (901) and extends into the interior of the neutralization vessel (1). The other end of the long shaft rod (902) is fixedly connected to the output end of the motor (2). The stirring blade (903) is fixedly connected to one end of the outer side of the long shaft rod (902). The connecting rod (904), the rotating ring (905), and the wall hanging strip (906) are connected. The connecting rod (904) is fixedly connected to the lower outer side of the long shaft (902). The rotating ring (905) is rotatably connected to one end of the inner side of the neutralization vessel (1). The wall hanging strip (906) is fixedly connected to one end of the connecting rod (904).

3. The automatic neutralization device for laboratory acidic or alkaline wastewater according to claim 1, characterized in that, The discharge mechanism (13) includes: The dispensing tube (1301), the bell-shaped tube housing (1302), and the connecting rod (1303) are fixedly connected to one end of the bottom of the solenoid valve (12), the bell-shaped tube housing (1302) is fixedly connected to one end of the bottom of the dispensing tube (1301), and the connecting rod (1303) is fixedly connected to one end of the inner side of the bell-shaped tube housing (1302). The bell-shaped inner tube (1304) and the semi-circular top (1305) are provided inside the bell-shaped tube shell (1302) and are fixedly connected to the connecting rod (1303). The semi-circular top (1305) is fixedly connected to the top of the bell-shaped inner tube (1304).

4. The automatic neutralization device for laboratory acidic or alkaline wastewater according to claim 1, characterized in that, A liquid valve (14) is fixedly connected to one end of the bottom of the neutralization vessel (1), and a water outlet pipe (15) is fixedly connected to one end of the liquid valve (14).

5. The automatic neutralization device for laboratory acidic or alkaline wastewater according to claim 1, characterized in that, The pH monitor (5), the electromagnetic flowmeter (7) and the solenoid valve (12) are all electrically connected to the controller (4). The pH monitor (5) has a pH sensor at one end and is located at the bottom of the neutralization vessel (1).

6. The automatic neutralization device for laboratory acidic or alkaline wastewater according to claim 2, characterized in that, The number of agitator blades (903) is provided in multiple sets, and they are symmetrically arranged at multiple ends on the outside of the long shaft (902).

7. The automatic neutralization device for laboratory acidic or alkaline wastewater according to claim 2, characterized in that, The number of rotating rings (905) is provided in two sets, which are symmetrically arranged at both ends of the inner side of the neutralization vessel (1). The number of connecting fixing rods (904) and wall hanging strips (906) is provided in multiple sets, and the multiple sets of wall hanging strips (906) are fixedly connected between the two sets of rotating rings (905).

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