Medical laboratory inspection wastewater treatment device

Abstract

The invention discloses an inspection wastewater treatment device for a medical laboratory. The inspection wastewater treatment device comprises a water collecting tank, a regulating tank, an acid-base neutralization tank, a disinfection tank, a wastewater treatment device and a matched device chamber which are arranged in sequence, a water inlet pipe is arranged on the water collecting tank; water flow channels are sequentially arranged among the water collecting tank, the regulating tank, the acid-base neutralization tank and the disinfection tank; a waste water treatment device is arranged in the matching device chamber, the waste water treatment device is in signal connection with a PLC control system, the PLC control system is used for controlling operation of the waste water treatment device, and the medical laboratory inspection waste water treatment device is innovative in structure, simplified in medical laboratory waste water treatment process, small in equipment occupied area and convenient to maintain.

Description

Technical Field

[0001] This invention relates to the field of medical wastewater treatment technology, and more specifically to a medical laboratory testing wastewater treatment device. Background Technology

[0002] Medical laboratories are crucial auxiliary departments in healthcare, responsible for the analysis and testing of all medical supplies. With the development of the medical field and the advancement of disease treatment technologies, the range of treatable diseases has expanded significantly. Various advanced testing instruments have been introduced into laboratories to examine more pathological samples, leading to a growing problem of wastewater treatment. Because laboratory wastewater originates from diverse pathological specimens, it poses a significant biological hazard. According to national regulations, medical laboratory wastewater cannot be directly discharged into sewers and must be treated by specialized equipment. Compared to traditional wastewater treatment, medical laboratory wastewater is characterized by small, intermittent flow, high hazard, and complex and variable composition. Therefore, it requires pretreatment before entering the hospital's integrated wastewater treatment plant. However, existing medical laboratory wastewater pretreatment equipment involves complex procedures, resulting in large equipment footprints, high maintenance difficulty, and high costs, necessitating urgent improvement. Summary of the Invention

[0003] To address the aforementioned problems, the present invention aims to provide a medical laboratory wastewater treatment device with innovative structure, simplified procedures, small footprint, and convenient maintenance.

[0004] According to one aspect of the present invention, a medical laboratory testing wastewater treatment device is provided, comprising: a water collection tank, an equalization tank, an acid-base neutralization tank, a disinfection tank, a wastewater treatment device, and an auxiliary device room arranged sequentially; The water collection tank is equipped with an inlet pipe, and the disinfection tank is equipped with a drain pipe. Water flow channels are sequentially arranged between the water collection tank, the equalization tank, the acid-base neutralization tank, and the disinfection tank; The supporting equipment room is equipped with a wastewater treatment device, which is connected to a PLC control system. The PLC control system is used to control the operation of the wastewater treatment device.

[0005] In some embodiments, the water flow channel between the collection tank and the regulating tank is controlled by a lifting weir plate located at the bottom of the collection tank; the operating mechanism of the lifting weir plate is signal-connected to the PLC control system.

[0006] In some implementations, a maintenance well is also provided above the water collection tank, and the operating mechanism for raising and lowering the weir plate is located inside the maintenance well.

[0007] In some embodiments, a level gauge is installed in the water collection tank, and the level gauge is signal-connected to the PLC control system and feeds back signals to the PLC control system.

[0008] In some embodiments, a pull-up filter device is provided at the inlet of the water collection tank. The pull-up filter device includes: a frame, a pull-up bracket, and a sliding assembly. The frame is composed of filter screens. The top, front and rear ends of the frame are provided with hanging ears. The hanging ears are mounted on the front and rear walls of the water collection tank to fix the frame in the water collection tank. The lifting frame is installed inside the frame; The lifting frame includes: a base plate, a vertical rod connected to the middle of the top surface of the base plate, and a horizontal rod connected to the top of the vertical rod; the base plate is a filter plate adapted to the size of the bottom of the frame, and the top of the horizontal rod is provided with a lifting ring; The sliding component includes: a sliding groove disposed on the front and rear walls inside the frame, and a slider disposed at both ends of the crossbar, the sliders being slidably engaged in the sliding groove.

[0009] In some embodiments, a first lift pump is installed at the bottom of the equalization tank, and the outlet of the first lift pump is connected to the acid-base neutralization tank; a second lift pump is installed at the bottom of the acid-base neutralization tank, and a water distributor is installed at the bottom of the disinfection tank, with the outlet of the second lift pump connected to the inlet of the water distributor.

[0010] In some embodiments, a filter plate is installed near the top inside the disinfection pool, with the outer periphery of the filter plate being press-fitted into the inner wall of the disinfection pool; a drain pipe is installed on the disinfection pool wall above the filter plate.

[0011] In some embodiments, a fixing frame is also provided on the inner wall of the disinfection pool above the filter plate. The fixing frame includes a support column installed on the inner wall of the disinfection pool and a roller fixedly connected to the end of the support column away from the inner wall of the disinfection pool. A stirring rod is vertically inserted into the roller, and the stirring rod is interference-fitted with the inner ring of the roller. The bottom of the stirring rod extends through the filter plate into the disinfection tank, and a stirring bar is provided on the outer wall of the bottom of the stirring rod; The top of the stirring rod extends through the top plate of the disinfection tank into the natural space, and a fan plate is provided on the outer side wall of the top of the stirring rod.

[0012] In some embodiments, the wastewater treatment apparatus includes: an automatic dosing system and an aeration system; The automatic dosing system is installed in the room of the supporting equipment. The automatic dosing system includes at least two dosing outlets, which are respectively located in the acid-base neutralization tank and the disinfection tank; The aeration system includes an aeration pump and an aerator. The aeration pump is located in the room of the supporting device, and the aerator is located in the acid-base neutralization tank. The aeration pump and the aerator are connected by a pipeline.

[0013] In some embodiments, the wastewater treatment device further includes a pH probe, which is installed in an acid-base neutralization tank and is signal-connected to the PLC control system and feeds back signals to the PLC control system.

[0014] This invention offers several advantages over existing technologies, including structural innovation, simplified medical laboratory wastewater treatment processes, smaller equipment footprint, and easier maintenance. Furthermore: 1. The medical laboratory wastewater treatment equipment of the present invention integrates a collection tank, a regulating tank, an acid-base neutralization tank, a disinfection tank, and a supporting device room into one unit. The whole system is automatically controlled by a PLC control system, making the process simpler, more intelligent, and more efficient. It realizes integrated pre-purification treatment of medical laboratory wastewater, solving the problems of complicated treatment procedures, large equipment footprint, high maintenance difficulty, and high maintenance cost of existing medical laboratory wastewater treatment equipment.

[0015] 2. The medical laboratory wastewater treatment equipment of the present invention is equipped with a level gauge and a lifting weir at the water collection tank. The level gauge is connected to the PLC control system and can detect the water level in the water collection tank in real time, which is fed back to the PLC control system and then further controls the opening and closing of the lifting weir. Combined with the regulating tank, the treatment water volume in the acid-base neutralization tank and the disinfection tank can be controlled to achieve precise and effective wastewater treatment.

[0016] 3. The medical laboratory wastewater treatment equipment of the present invention is equipped with a pull-up filter device at the collection tank to perform preliminary filtration on the wastewater entering the collection tank for the first time; the pull-up frame inside the pull-up filter device can be lifted out at any time to regularly clean debris on the bottom plate and inner wall of the frame, which is very convenient. It can not only improve the preliminary filtration effect of wastewater treatment, but also reduce the difficulty and maintenance cost of cleaning and maintaining the filter device.

[0017] 4. The medical laboratory wastewater treatment equipment of the present invention includes a stirring device at the disinfection tank. The fan plate of the stirring device is located in natural space, and wind energy can be used to drive the stirring rod and stirring paddle to rotate, thereby achieving mixing and stirring of wastewater and disinfectant in the disinfection tank. This not only improves the effectiveness of the wastewater and disinfectant but also eliminates the need for paid energy consumption, making it energy-saving, environmentally friendly, and reducing wastewater treatment costs. Attached Figure Description

[0018] Figure 1 This is a top view schematic diagram of the medical laboratory wastewater treatment device of the present invention; Figure 2 This is a schematic cross-sectional view of the medical laboratory wastewater treatment device of the present invention. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent transformations or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the terms according to the specific circumstances.

[0021] like Figure 1 and Figure 2 As shown, the medical laboratory wastewater treatment device of the present invention comprises, in sequence, a collection tank 1, an equalization tank 2, an acid-base neutralization tank 3, a disinfection tank 4, and a supporting device room 5; water flow channels are sequentially arranged between the collection tank 1, the equalization tank 2, the acid-base neutralization tank 3, and the disinfection tank 4; an inlet pipe 6 is provided on the collection tank 1, and a drain pipe 7 is provided on the disinfection tank 4; a wastewater treatment device is installed in the supporting device room 5, and the wastewater treatment device is signal-connected to a PLC control system, which is used to control the operation of the wastewater treatment device. In this embodiment, the PLC control system is installed in the supporting device room 5 in the form of a PLC control cabinet 8.

[0022] In use, wastewater from the medical laboratory enters the collection tank through the inlet pipe. The PLC control system controls the wastewater treatment device to purify the wastewater. After treatment, the water that meets the discharge standards is discharged through the drain pipe. The entire equipment is automatically controlled by the PLC control system, featuring high integration, small footprint, simpler, smarter, and more efficient processes, and low maintenance difficulty and cost.

[0023] The water flow channel between the collection tank 1 and the regulating tank 2 is controlled by a lifting weir plate 11 located at the bottom of the collection tank 1. The operating mechanism of the lifting weir plate 11 is connected to the PLC control system. A level gauge 12 is also installed in the collection tank 1, and the level gauge 12 is also connected to the PLC control system. The level gauge 12 can detect the water level in the collection tank 1 in real time and feed it back to the PLC control system, which then controls the opening and closing of the lifting weir plate 11, thereby achieving the regulation and control of the water volume processed in subsequent processes.

[0024] As an optional implementation scenario, in this implementation scenario, a maintenance well 13 is also provided above the water collection tank 1, and the operating mechanism of the lifting weir plate 11 is located in the maintenance well 13; this structural design can facilitate the maintenance of the lifting weir plate 11, thereby reducing the maintenance difficulty and maintenance cost of the equipment.

[0025] As an optional implementation scenario, in this implementation scenario, a pull-up filter device 14 is provided at the inlet of the water collection tank 1. The pull-up filter device 14 includes a frame 141, a pull-up bracket 142, and a sliding assembly 143. Specifically, the frame 141 is composed of filter screen plates, and its top front and rear ends are provided with hanging ears. The hanging ears are mounted on the front and rear walls of the water collection tank 1, thereby realizing the movable fixation of the frame 141 on the water collection tank 1. The pull-up bracket 142 is set inside the frame 141, and it includes a base plate, a vertical rod connected to the middle of the top surface of the base plate, and a horizontal rod connected to the top of the vertical rod. The base plate is a filter screen plate adapted to the size of the bottom of the frame 141, and the top of the horizontal rod is provided with a pull-up ring. The sliding assembly 143 includes a sliding groove set on the front and rear walls inside the frame 141, and a slider set at both ends of the horizontal rod. The sliders at both ends of the horizontal rod are slidably embedded in the sliding groove. When wastewater first enters the collection tank 1, it first flows into the lifting filter device 14 for preliminary filtration. When there is a lot of debris on the filter screen, the lifting frame can be lifted out at any time through the lifting ring to clean the debris on the bottom plate and the inner wall of the frame 141. This is very convenient and not only improves the preliminary filtration effect of wastewater treatment, but also reduces the difficulty and maintenance cost of cleaning and maintaining the filter device.

[0026] As an optional implementation scenario, in this scenario, a first lift pump 21 is installed at the bottom of the equalization tank 2, and the outlet of the first lift pump 21 is connected to the acid-base neutralization tank 3 to lift the water flow in the equalization tank 2 and send it into the acid-base neutralization tank 3. A second lift pump 31 is installed at the bottom of the acid-base neutralization tank 3, and a water distributor 41 is installed at the bottom of the disinfection tank 4. The outlet of the second lift pump 31 is connected to the inlet of the water distributor 41 to send the water flow in the acid-base neutralization tank 3 into the disinfection tank 4, thereby completing water distribution. In this embodiment, the water distributor 41 is a perforated top water distribution pipe. Through this structural design, not only can the processing water volume of each process be controlled, but the design of the second lift pump 31 + water distributor 41, while completing water flow transportation, also forms a jet-like water distribution in the disinfection tank 4, which is conducive to the full mixing of the water flow and disinfectant in the disinfection tank.

[0027] As an optional implementation scenario, in this scenario, the wastewater treatment device includes an automatic dosing system 51 and an aeration system 52. The automatic dosing system 51 is located in the supporting device chamber 5 and includes at least two outlets. The two outlets are respectively located in the acid-base neutralization tank 3 and the disinfection tank 4. The outlet in the acid-base neutralization tank 3 is used to add pH adjuster, and the outlet in the disinfection tank 4 is used to add sodium hypochlorite disinfectant. The dosage and timing of the pH adjuster and sodium hypochlorite are set according to the specific water quality conditions, and are all controlled by the PLC control system to achieve automatic dosing. The aeration system 52 includes an outlet located in the supporting device chamber 5. The aeration pump 521 in the supporting equipment room 5 and the aerator 522 installed in the acid-base neutralization tank 3 are connected by a pipeline. Ventilation holes are provided on the side wall where the aeration pump 521 is installed in the supporting equipment room 5. The aerator 522 includes an aeration pipe, which is set at the bottom of the acid-base neutralization tank 3. When in use, the aeration pump 521 delivers air to the aeration pipe and blows air into the acid-base neutralization tank 3, so that the reaction in the tank is more complete, the reagent and wastewater are mixed more evenly, and the reaction is more effective. The operating time and power of the aeration pump 12 are controlled by the PLC control system, which is safer and more accurate.

[0028] As an optional implementation scenario, the wastewater treatment device also includes a pH probe, which is installed inside the acid-base neutralization tank 3 and near the inlet of the second booster pump 31. The pH probe can detect the pH value in the acid-base neutralization tank 3 in real time and feed it back to the PLC control system, thereby calculating the dosage and timing of pH adjuster dosing, further improving the treatment efficiency of the equipment.

[0029] As an optional implementation scenario, in this scenario, a filter plate 42 is installed near the top inside the disinfection tank 4. The outer periphery of the filter plate 42 is press-fitted with the inner wall of the disinfection tank 4 to improve installation stability; the drain pipe 7 is installed on the disinfection tank wall above the filter plate 42. With this structural design, when the disinfection tank 4 is full of water, it overflows from above the filter plate 42. During this process, the filter plate 42 can perform final filtration on the water to be discharged, so that the water overflowing above the filter plate 42 meets the discharge standards.

[0030] As an optional implementation scenario, in this implementation scenario, a fixing frame 43 is also provided on the inner wall of the disinfection pool above the filter plate 42. The fixing frame 43 includes four support columns 431 installed on the inner wall of the disinfection pool, and a roller 432 fixedly connected to the end of the support column 431 away from the inner wall of the disinfection pool. A stirring rod 44 is vertically inserted into the roller 432, and the stirring rod 44 is interference-fitted with the inner ring of the roller 432. The bottom of the stirring rod 44 extends through the filter plate into the disinfection pool 4, and a stirring bar 441 is provided on the outer wall of the bottom of the stirring rod 44. The top of the stirring rod 44 extends through the top plate of the disinfection pool 4 into the natural space, and a fan plate 442 is provided on the outer wall of the top of the stirring rod 44. The fan plate 442 is located in the natural space. It can use wind energy to drive the stirring rod 44 and stirring bar 441 to rotate, thereby achieving the mixing and stirring of wastewater and disinfectant in the disinfection tank 4. This not only improves the effect of wastewater and disinfectant, but also eliminates the need to consume paid energy, making it energy-saving and environmentally friendly, and reducing wastewater treatment costs.

[0031] It should be noted that the booster pump, PLC controller, automatic dosing device and other electrical equipment are all supplied with power by corresponding power sources, which should be common knowledge to those skilled in the art, and will not be described in detail in this invention; the specific models of each electrical device can be selected according to the specific situation, as long as the corresponding functions can be achieved, and this invention does not impose specific limitations.

[0032] The above descriptions are merely some embodiments of the present invention. It should be noted that those skilled in the art can make other modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A medical laboratory wastewater treatment device, characterized in that, include: The system consists of a water collection tank, a regulating tank, an acid-base neutralization tank, a disinfection tank, a wastewater treatment device, and a supporting equipment room, arranged sequentially. The water collection tank is equipped with an inlet pipe, and the disinfection tank is equipped with a drain pipe. Water flow channels are sequentially arranged between the water collection tank, the regulating tank, the acid-base neutralization tank, and the disinfection tank; The supporting equipment includes a wastewater treatment device, which is connected to a PLC control system. The PLC control system is used to control the operation of the wastewater treatment device.

2. The medical laboratory wastewater treatment device according to claim 1, characterized in that, The water flow channel between the collection tank and the regulating tank is controlled by a lifting weir plate located at the bottom of the collection tank; the operating mechanism of the lifting weir plate is connected to the PLC control system.

3. The medical laboratory wastewater treatment device according to claim 2, characterized in that, An inspection well is also provided above the water collection tank, and the operating mechanism of the lifting weir plate is located inside the inspection well.

4. The medical laboratory wastewater treatment device according to claim 3, characterized in that, The water collection tank is equipped with a level gauge, which is connected to the PLC control system and feeds back signals to the PLC control system.

5. The medical laboratory wastewater treatment device according to claim 4, characterized in that, A lifting filter device is installed at the inlet of the water collection tank. The lifting filter device includes: a frame, a lifting bracket, and a sliding component. The frame is composed of filter screens. The top, front and rear ends of the frame are provided with hanging ears. The hanging ears are mounted on the front and rear walls of the water collection tank to fix the frame in the water collection tank. The lifting frame is disposed within the frame; The lifting frame includes: a base plate, a vertical rod connected to the middle of the top surface of the base plate, and a horizontal rod connected to the top of the vertical rod; the base plate is a filter plate adapted to the size of the bottom of the frame, and the top of the horizontal rod is provided with a lifting ring; The sliding component includes: a sliding groove disposed on the front and rear walls inside the frame, and a slider disposed at both ends of the crossbar, wherein the slider is slidably engaged in the sliding groove.

6. The medical laboratory wastewater treatment device according to claim 5, characterized in that, A first lift pump is installed at the bottom of the regulating tank, and the outlet of the first lift pump is connected to the acid-base neutralization tank; a second lift pump is installed at the bottom of the acid-base neutralization tank, and a water distributor is installed at the bottom of the disinfection tank, with the outlet of the second lift pump connected to the inlet of the water distributor.

7. The medical laboratory wastewater treatment device according to claim 6, characterized in that, A filter plate is installed near the top inside the disinfection pool, and the outer periphery of the filter plate is interference-fitted with the inner wall of the disinfection pool; the drain pipe is installed on the disinfection pool wall above the filter plate.

8. The medical laboratory wastewater treatment device according to claim 7, characterized in that, A fixing frame is also provided on the inner wall of the disinfection pool above the filter plate. The fixing frame includes a support column installed on the inner wall of the disinfection pool and a roller fixedly connected to the end of the support column away from the inner wall of the disinfection pool. A stirring rod is vertically inserted into the roller, and the stirring rod is interference-fitted with the inner ring of the roller. The bottom of the stirring rod extends through the filter plate into the disinfection tank, and a stirring bar is provided on the outer wall of the bottom of the stirring rod; The top of the stirring rod extends through the top plate of the disinfection tank into the natural space, and a fan plate is provided on the outer side wall of the top of the stirring rod.

9. The medical laboratory wastewater treatment device according to any one of claims 1-8, characterized in that, The wastewater treatment device includes: an automatic dosing system and an aeration system; The automatic dosing system is installed in the room of the supporting equipment; The automatic dosing system includes at least two dosing outlets, with the two dosing outlets respectively located in the acid-base neutralization tank and the disinfection tank; The aeration system includes an aeration pump and an aerator. The aeration pump is located in the room of the supporting device, and the aerator is located in the acid-base neutralization tank. The aeration pump and the aerator are connected by a pipeline.

10. The medical laboratory wastewater treatment device according to claim 9, characterized in that, The wastewater treatment device further includes a pH probe, which is installed in the acid-base neutralization tank and is connected to the PLC control system for signal transmission and feedback.

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