Laboratory waste liquid grading extraction device

Abstract

The utility model relates to the technical field of waste liquid treatment, and discloses a laboratory waste liquid graded extraction device which comprises a treatment tank, a pretreatment pipe is slidably inserted into the upper surface of the treatment tank, and the top end of the pretreatment pipe is funnel-shaped. According to the graded extraction device for the laboratory waste liquid, through the metering pump, the first liquid level sensor and the second liquid level sensor, the liquid level of a medicament in the medicament tank and the liquid level of the waste liquid in the treatment tank can be monitored in real time, so that the addition amount of the medicament is automatically adjusted according to the volume of the waste liquid, and accurate proportioning is realized; by means of the function, errors caused by manual visual adding are avoided, the treatment efficiency and the waste liquid treatment accuracy are improved, a filter screen, a first filter element and a second filter element in the pretreatment pipe form a multi-stage filtering system, waste liquid can be filtered stage by stage, impurities and pollutants with different particle sizes are effectively removed, and the treatment effect is good. The graded extraction mode not only improves the purification efficiency, but also ensures the stability of the final treatment result.

Description

Technical Field

[0001] This application relates to the field of waste liquid treatment technology, specifically a laboratory waste liquid graded extraction device. Background Technology

[0002] Laboratories are a typical and serious source of pollution. The pollutants are often overlooked. The more laboratories are built, the greater the total amount of pollution. In my country, wastewater generated by laboratories is generally discharged directly into underground sewage pipe networks without treatment or after simple treatment, and then sent to large-scale domestic sewage treatment plants for centralized treatment.

[0003] An existing patent (publication number: CN220078836U) discloses a laboratory waste liquid treatment machine, including a purification tank and a reaction tank. A filter plate with multiple filter holes is located at the top of the purification tank, and a sedimentation tank with a conical structure is located at the bottom of the filter plate. One side of the sedimentation tank is connected to the reaction tank via a pipe. A stirring shaft with multiple blades arranged circumferentially on the stirring shaft is located inside the reaction tank, and cleaning brushes are mounted on the blades on the same side. The advantages of this invention compared to existing technologies are: solid-liquid separation is performed directly in the purification tank, and sedimentation is used for settling. Solid waste and liquid are classified and then enter the reaction tank for chemical reaction. The stirring shaft and blades accelerate the reaction. The structure is simple and the efficiency is high.

[0004] The aforementioned processing machine sorts solid waste and liquids and then puts them into the reaction tank for chemical reaction. The stirring shaft and fan blades can accelerate the reaction. It has a simple structure and high efficiency. However, when adding chemicals, it cannot automatically add chemicals according to the amount of waste liquid inside, and workers need to add them visually, which makes it less convenient to use. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a laboratory waste liquid fractionation and extraction device with advantages such as automatic proportioning, thus solving the problems mentioned in the background technology.

[0006] To achieve the above objectives, this application provides the following technical solution: a laboratory waste liquid fractionation extraction device, comprising a treatment tank, a pretreatment tube slidably inserted into the upper surface of the treatment tank, the top end of the pretreatment tube being funnel-shaped, a filter screen fixedly connected to the top end of the inner wall of the pretreatment tube, and a first filter element and a second filter element respectively provided below the filter screen, both the first filter element and the second filter element being fixedly connected to the inner wall of the pretreatment tube.

[0007] A stirring shaft is rotatably connected to the bottom of the treatment tank, and a set of stirring blades is fixedly connected to the outer surface of the stirring shaft. A reagent tank is provided on one side of the treatment tank, and a metering pump is provided between the reagent tank and the bottom of the treatment tank. The output end of the metering pump is fixedly connected to the bottom of the treatment tank, and the input end of the metering pump is fixedly connected to the bottom of the reagent tank.

[0008] Through the above scheme, using a metering pump, a first liquid level sensor, and a second liquid level sensor, this device can monitor the liquid level in the reagent tank and the waste liquid level in the treatment tank in real time. This allows for automatic adjustment of the reagent dosage based on the volume of the waste liquid, achieving precise proportioning. This function avoids errors caused by manual visual addition, improving treatment efficiency and the accuracy of waste liquid treatment. The filter screen, first filter element, and second filter element in the pretreatment tube constitute a multi-stage filtration system, capable of filtering the waste liquid step by step, effectively removing impurities and pollutants of different particle sizes. This graded extraction method not only improves purification efficiency but also ensures the stability of the final treatment result. When the composition of the treated waste liquid does not meet the expected standards, the waste liquid can be redirected back to the pretreatment tube for further filtration through a return pump and return pipe until the required treatment effect is achieved.

[0009] Furthermore, a first liquid level sensor is installed on the top of the medicine container.

[0010] The above scheme, through the setting of the first liquid level sensor, enables the monitoring of the liquid level inside the medicine tank.

[0011] Furthermore, a second liquid level sensor is fixedly installed on the outer surface of the processing tank.

[0012] The above scheme, through the setting of a second liquid level sensor, enables the monitoring of the liquid level in the treatment tank, thereby enabling the measurement of the waste liquid volume and facilitating the determination of the dosage of reagent to be added.

[0013] Furthermore, a support frame is fixedly connected to the bottom of the processing tank.

[0014] The above solution, through the installation of support frames, can achieve the purpose of supporting the processing tank.

[0015] Furthermore, two connecting plates are fixedly connected between the processing tank and the medicine tank.

[0016] The above solution, through the setting of the connecting plate, can achieve the purpose of fixing the medicine container.

[0017] Furthermore, a component detection sensor is installed at the bottom of the outer surface of the processing tank.

[0018] The above scheme, through the setting of component detection sensors, enables the detection of the components of the filtered medicine.

[0019] Furthermore, a reflux pump is provided on one side of the processing tank. The input end of the reflux pump is fixedly connected to the bottom end of the processing tank, and the output end of the reflux pump is fixedly connected to a reflux pipe. The other end of the reflux pipe is located above the pretreatment pipe.

[0020] With the above scheme and settings, when the waste liquid fails the test, the return pump can draw the waste liquid back into the pretreatment pipe for filtration.

[0021] Furthermore, a control host is installed on the outer surface of the medicine container.

[0022] The above scheme, through the configuration of the control host, enables the control of electrical components.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This laboratory waste liquid graded extraction device, through a metering pump, a first liquid level sensor, and a second liquid level sensor, can monitor the liquid level of the reagent tank and the waste liquid level of the treatment tank in real time. It automatically adjusts the amount of reagent added based on the volume of the waste liquid, achieving precise proportioning. This function avoids errors caused by manual visual addition, improving processing efficiency and the accuracy of waste liquid treatment. The filter screen, first filter element, and second filter element in the pretreatment tube constitute a multi-stage filtration system, capable of filtering the waste liquid step by step, effectively removing impurities and contaminants of different particle sizes. This graded extraction method not only improves purification efficiency but also ensures the stability of the final treatment result. When the composition of the treated waste liquid does not meet the expected standards, the waste liquid can be redirected back to the pretreatment tube for further filtration through a reflux pump and reflux pipe until the required treatment effect is achieved. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 1 ;

[0026] Figure 2 This is a front view of the overall structure of this application;

[0027] Figure 3 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 2 ;

[0028] Figure 4 This is a sectional view of the overall structure of this application from the front.

[0029] In the picture:

[0030] 1. Processing tank; 2. Pretreatment pipe; 3. Filter screen; 4. First filter element; 5. Second filter element; 6. Stirring shaft; 7. Stirring blade; 8. Chemical tank; 9. Metering pump; 10. First liquid level sensor; 11. Second liquid level sensor; 12. Support frame; 13. Connecting plate; 14. Component detection sensor; 15. Return pump; 16. Return pipe; 17. Control unit. Detailed Implementation

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

[0032] Please see Figure 1 , Figure 2 and Figure 4 This embodiment of a laboratory waste liquid grading and extraction device includes a treatment tank 1. A pretreatment tube 2 is slidably inserted into the upper surface of the treatment tank 1. The top end of the pretreatment tube 2 is funnel-shaped. A filter screen 3 is fixedly connected to the top end of the inner wall of the pretreatment tube 2. The filter screen 3 can achieve the purpose of filtering impurities. A first filter element 4 and a second filter element 5 are respectively provided below the filter screen 3. The first filter element 4 and the second filter element 5 are both fixedly connected to the inner wall of the pretreatment tube 2. The first filter element 4 and the second filter element 5 can achieve the purpose of grading and filtering the waste liquid. A support frame 12 is fixedly connected to the bottom of the treatment tank 1. The support frame 12 can achieve the purpose of supporting the treatment tank 1.

[0033] Please see Figure 1 , Figure 2 and Figure 4 A stirring shaft 6 is rotatably connected to the bottom of the treatment tank 1. A set of stirring blades 7 are fixedly connected to the outer surface of the stirring shaft 6. The stirring blades 7 enable uniform mixing of waste liquid and reagent. A reagent tank 8 is provided on one side of the treatment tank 1. Two connecting plates 13 are fixedly connected between the treatment tank 1 and the reagent tank 8. The connecting plates 13 enable the reagent tank 8 to be fixedly fixed. A metering pump 9 is provided between the reagent tank 8 and the bottom of the treatment tank 1. The output end of the metering pump 9 is fixedly connected to the bottom of the treatment tank 1, and the input end of the metering pump 9 is fixedly connected to the bottom of the reagent tank 8. The above settings facilitate the control of the amount of reagent added.

[0034] Please see Figure 1 , Figure 2 and Figure 4A component detection sensor 14 is installed at the bottom of the outer surface of the treatment tank 1. The component detection sensor 14 can detect the components of the filtered medicine. A first liquid level sensor 10 is installed on the top of the medicine tank 8. The first liquid level sensor 10 can monitor the liquid level inside the medicine tank 8. A second liquid level sensor 11 is fixedly installed on the outer surface of the treatment tank 1. The second liquid level sensor 11 can monitor the liquid level of the treatment tank 1, thereby measuring the amount of waste liquid and facilitating the determination of how much medicine to add.

[0035] Please see Figure 1 , Figure 2 and Figure 3 A reflux pump 15 is provided on one side of the treatment tank 1. The input end of the reflux pump 15 is fixedly connected to the bottom end of the treatment tank 1, and the output end of the reflux pump 15 is fixedly connected to a reflux pipe 16. The other end of the reflux pipe 16 is located above the pretreatment pipe 2. With the above settings, when the waste liquid fails the test, the reflux pump 15 can draw the waste liquid back into the pretreatment pipe 2 for filtration. A control host 17 is installed on the outer surface of the reagent tank 8. With the setting of the control host 17, the purpose of controlling the electrical components can be realized.

[0036] This embodiment of a laboratory waste liquid graded extraction device, through a metering pump 9, a first liquid level sensor 10, and a second liquid level sensor 11, enables real-time monitoring of the reagent level in the reagent tank 8 and the waste liquid level in the treatment tank 1. This allows for automatic adjustment of the reagent addition amount based on the waste liquid volume, achieving precise proportioning. This function avoids errors caused by manual visual addition, improving processing efficiency and the accuracy of waste liquid treatment. The filter screen 3, the first filter element 4, and the second filter element 5 within the pretreatment tube 2 constitute a multi-stage filtration system, capable of filtering the waste liquid step by step, effectively removing impurities and contaminants of different particle sizes. This graded extraction method not only improves purification efficiency but also ensures the stability of the final treatment result. When the composition of the treated waste liquid does not meet the expected standards, the waste liquid can be redirected back to the pretreatment tube 2 for re-filtration via the return pump 15 and the return pipe 16 until the required treatment effect is achieved.

[0037] The working principle of the above embodiment is as follows: First, the waste liquid is poured into the device through the funnel-shaped inlet at the top of the pretreatment pipe 2. The filter screen 3 at the top of the inner wall of the pretreatment pipe 2 first plays its role, intercepting and removing large impurities and particulate matter in the waste liquid, ensuring the smooth progress of subsequent filtration steps. After the initial filtration by the filter screen 3, the waste liquid continues to flow downwards, passing through the first filter element 4 and the second filter element 5 in sequence. The two filter elements have different filtration accuracies, which can filter the waste liquid step by step, effectively removing impurities and pollutants of different particle sizes. After the waste liquid enters the treatment tank 1, the component detection sensor 14 monitors the composition of the waste liquid in real time. When it is unqualified, the return pump 15 will start working. The input end of the return pump 15 The waste liquid is fixedly connected to the bottom of the treatment tank 1, and its output end is guided back to the pretreatment pipe 2 for further filtration through the return pipe 16. When the waste liquid is qualified, the stirring shaft 6 is driven by the motor to rotate, which drives the stirring blade 7 to stir the waste liquid. At the same time, the reagent in the reagent tank 8 is accurately pumped into the treatment tank 1 through the metering pump 9. The operation of the metering pump 9 is monitored and controlled in real time by the first liquid level sensor 10 and the second liquid level sensor 11. The first liquid level sensor 10 monitors the liquid level of the reagent in the reagent tank 8 to ensure an adequate supply of reagent; the second liquid level sensor 11 monitors the liquid level of the waste liquid in the treatment tank 1, thereby automatically adjusting the amount of reagent added according to the volume of the waste liquid to achieve a precise ratio.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laboratory waste liquid fractionation and extraction device, comprising a treatment tank (1), characterized in that: A pretreatment tube (2) is slidably inserted into the upper surface of the treatment tank (1). The top of the pretreatment tube (2) is funnel-shaped. A filter screen (3) is fixedly connected to the top of the inner wall of the pretreatment tube (2). A first filter element (4) and a second filter element (5) are respectively provided below the filter screen (3). The first filter element (4) and the second filter element (5) are both fixedly connected to the inner wall of the pretreatment tube (2). The bottom of the treatment tank (1) is rotatably connected to a stirring shaft (6), and a set of stirring blades (7) are fixedly connected to the outer surface of the stirring shaft (6). A medicine tank (8) is provided on one side of the treatment tank (1). A metering pump (9) is provided between the medicine tank (8) and the bottom of the treatment tank (1). The output end of the metering pump (9) is fixedly connected to the bottom of the treatment tank (1), and the input end of the metering pump (9) is fixedly connected to the bottom of the medicine tank (8).

2. The laboratory waste liquid fractionation and extraction device according to claim 1, characterized in that: A first liquid level sensor (10) is installed on the top of the medicine tank (8).

3. The laboratory waste liquid fractionation and extraction device according to claim 1, characterized in that: A second liquid level sensor (11) is fixedly installed on the outer surface of the processing tank (1).

4. The laboratory waste liquid fractionation and extraction device according to claim 1, characterized in that: The bottom of the processing tank (1) is fixedly connected to a support frame (12).

5. The laboratory waste liquid fractionation and extraction device according to claim 1, characterized in that: Two connecting plates (13) are fixedly connected between the processing tank (1) and the medicine tank (8).

6. The laboratory waste liquid fractionation and extraction device according to claim 1, characterized in that: A component detection sensor (14) is installed on the bottom of the outer surface of the processing tank (1).

7. The laboratory waste liquid fractionation and extraction device according to claim 1, characterized in that: A reflux pump (15) is provided on one side of the processing tank (1). The input end of the reflux pump (15) is fixedly connected to the bottom end of the processing tank (1). The output end of the reflux pump (15) is fixedly connected to a reflux pipe (16). The other end of the reflux pipe (16) is located above the pretreatment pipe (2).

8. The laboratory waste liquid fractionation and extraction device according to claim 1, characterized in that: The outer surface of the medicine container (8) is equipped with a control host (17).

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