CN114620884A - Method and device for low-temperature fractional condensation and deep recycling of medical waste liquid - Google Patents

Abstract

The invention relates to a method and a device for low-temperature fractional condensation and deep recycling of medical waste liquid. The device comprises a low-temperature evaporation tank, wherein a collection unit for collecting effective components in the medical waste liquid in a grading manner is arranged in the low-temperature evaporation tank, the collection unit comprises a distillation box, a plurality of groups of distillation boxes are arranged in the low-temperature evaporation tank from top to bottom, and a temporary storage box for storing the medical waste liquid before entering the distillation box group above is arranged on one side of the low-temperature evaporation tank; according to the invention, through low-temperature condensation, fractional collection and deep distillation recycling, organic solvents, distilled water and the like in the medical waste liquid can be deeply collected and recycled, the purpose of reducing the amount of the medical waste liquid from the source is realized, and the problems of high difficulty in medical waste liquid entrusted hazardous waste treatment, high cost and great environmental pollution are solved.

Description

Method and device for low-temperature fractional condensation and deep recycling of medical waste liquid

Technical Field

The invention belongs to the technical field of waste liquid treatment devices, and particularly relates to a method and a device for low-temperature fractional condensation and deep recycling of medical waste liquid.

Background

The medical waste liquid has complex components, large production amount, strong corrosivity (containing chlorine and fluorine ions), certain heavy metals (such as a luminescent reagent containing zinc), great treatment difficulty of dangerous waste, high cost and great environmental pollution.

Therefore, it is necessary to provide a method and a device for low-temperature fractional condensation and deep recycling of medical waste liquid to solve the above drawbacks.

Disclosure of Invention

The invention aims to solve the problems and provide a method and a device for low-temperature fractional condensation and deep recycling of medical waste liquid, which have simple structure and reasonable design.

The invention achieves the above purpose through the following technical scheme:

a device for low-temperature fractional condensation and deep recycling of medical waste liquid comprises a low-temperature evaporation tank, wherein a collection unit for fractional collection of effective components in the medical waste liquid is arranged in the low-temperature evaporation tank, the collection unit comprises distillation boxes, a plurality of groups of the distillation boxes are arranged in the low-temperature evaporation tank from top to bottom, and a temporary storage box for medical waste liquid to be stored before entering the distillation boxes in the upper group is arranged on one side of the low-temperature evaporation tank;

the medical waste liquid in the distillation box enters a transfer device in the next-stage distillation box, the transfer device comprises an upper connecting pipe, an anti-corrosion hose and a lower connecting pipe, the upper connecting pipe, the anti-corrosion hose and the lower connecting pipe are sequentially and vertically fixedly connected, a lower base plate is fixedly arranged on one side of the lower connecting pipe, an adjusting unit is fixedly connected above the lower base plate, an upper base plate is fixedly arranged at the upper end of the adjusting unit, the upper base plate is fixed on one side of the upper connecting pipe, the lower surface of the distillation box is provided with an extending hole for the corresponding upper connecting pipe to extend into the distillation box, the upper surface of the distillation box is provided with a hole for the corresponding lower connecting pipe to extend into and be communicated with the inside of the distillation box, the side surfaces of the lower connecting pipes at the lower ends of a group of distillation boxes below are supported by an inner supporting plate fixed on the inner wall of the low-temperature evaporation tank, and the lower connecting pipes at the lower ends of the lower groups of the distillation boxes are communicated with the inside of the low-temperature evaporation tank, the lower surface in the low-temperature evaporating pot is provided with a heating unit for heating water stored in the lower end of the low-temperature evaporating pot;

the distillation box is provided with a steam heat exchange tube for steam generated after water at the lower end of the low-temperature evaporation tank is heated to pass through, and the distillation box is provided with a discharge pipeline assembly for discharging the medical waste liquid in the distillation box after the medical waste liquid forms steam during distillation.

As a further optimized proposal of the invention, one end of the temporary storage box is provided with an input pipeline for medical waste liquid of a hospital to enter the temporary storage box, the input pipeline is provided with a one-way valve for the medical waste liquid to enter the temporary storage box in a one-way, the one-way valve ensures that the medical waste liquid is conveyed to the interior of the temporary storage box in a one-way without backflow, a negative pressure generating unit for pumping negative pressure in the temporary storage box and a refrigerating unit for refrigerating medical waste liquid in the temporary storage box are arranged in the temporary storage box, the bottom of the temporary storage box is provided with a discharge pipeline communicated with a group of distillation boxes above the interior of the low-temperature evaporation tank, the medical waste liquid in the temporary storage box can automatically flow into the upper group of distillation boxes through the discharge pipeline when the control unit is opened.

According to the invention, through low-temperature condensation (40 ℃, about minus 95 MPa), graded collection and deep distillation recycling, organic solvents (ethanol and the like), distilled water and the like in the medical waste liquid can be deeply collected and recycled, the purpose of reducing the amount of the medical waste liquid from the source is realized, and the problems of high difficulty, high cost and great environmental pollution of medical waste liquid entrusted hazardous waste treatment are solved;

the low-temperature condensation can keep the pollutants in the medical waste liquid in the temporary storage box, effectively prevent the pollutants in the medical waste liquid from entering air, and realize the recycling of effective components (ethanol) and the like in the medical waste liquid with different evaporation points through grading and distillation, thereby realizing the purpose of deep recycling of the medical waste liquid;

specifically, the method comprises the following steps:

firstly, negative pressure is extracted from the temporary storage box through the negative pressure generating unit, medical waste liquid at a lower position (positioned in an underground pipeline or a ground pipeline) can be automatically sucked into the temporary storage box through the negative pressure effect in the temporary storage box, the refrigeration unit refrigerates the medical waste liquid in the temporary storage box to keep the medical waste liquid at about 40 ℃, the negative pressure generating unit extracts negative pressure from the temporary storage box to keep the interior of the temporary storage box at about negative 95 ℃, pollutants can be kept in the medical waste liquid in the temporary storage box through low-temperature condensation, and pollutants in the medical waste liquid can be effectively prevented from entering air;

in the apparatus, the negative pressure generating unit may use a negative pressure machine or the like, and the refrigerating unit may use a refrigerator or the like.

As a further optimization scheme of the invention, the bottom of the distillation box is fixedly provided with a monitoring unit for monitoring the temperature around the distillation box.

When medical waste liquid in the temporary storage box enters the upper group of distillation boxes, the upper group of adjusting units are controlled to push the upper connecting pipes to ascend, so that the medical waste liquid in the upper group of distillation boxes cannot overflow the upper connecting pipes, when the medical waste liquid is stopped to be added into the upper group of distillation boxes, the medical waste liquid is settled in the upper group of distillation boxes, so that the medical waste liquid is layered, the upper connecting pipes are controlled to descend through the adjusting units, so that the upper part of the medical waste liquid flows into the lower group of distillation boxes, the medical waste liquid is continuously settled and layered in the lower group of distillation boxes, and then the upper part of the medical waste liquid continuously flows into the lower group of distillation boxes, so that the purpose of grading the medical waste liquid is achieved;

when the medical waste liquid is classified, corresponding precipitation medicaments can be added into the distillation box or the temporary storage box for better layering of the medical waste liquid, the medical waste liquid in the distillation box can also be heated and then kept stand, and when the medical waste liquid is layered in the temporary storage box, the control unit is opened, so that the layered medical waste liquid can be directly and sequentially discharged into a plurality of groups of distillation boxes, and the purpose of grading is achieved;

when the heating unit heats water, the water is boiled, the boiled water generates water vapor, the water vapor passes through the corresponding water vapor heat exchange tube after rising, the multiple groups of distillation boxes are simultaneously heated, the temperature is gradually reduced from the distillation box below to the distillation box above when the water vapor is heated, the medical waste liquid in the distillation boxes is distilled and then discharged through the discharge pipeline assembly, the deep recycling of the medical waste liquid is realized, and the source reduction of the medical waste is realized;

the monitoring unit can monitor the heat around the bottom of the distillation box, so that the heat of the medical waste liquid in the distillation box can be accurately known, the proper heat is controlled to distill the medical waste liquid, and the recycling of the medical waste liquid with different evaporation points is realized;

in the equipment, a temperature sensor and other devices can be used as the monitoring unit, an electric push rod or an air cylinder and other devices can be used as the adjusting unit, and an electric heating plate and other devices can be used as the heating unit.

As a further optimization scheme of the invention, the steam heat exchange tubes are of a circular tube structure, vertically penetrate through the upper surface and the lower surface of the distillation box, are arranged in multiple groups at equal intervals, sealing rings are fixedly arranged at the inner rings of the stretching holes, the sealing rings are sealed between the inner rings of the stretching holes and the outer rings of the corresponding upper connecting tubes, and the lower connecting tubes and the corresponding holes are fixed.

Further, the vapor heat exchange tube is provided with the multiunit, is convenient for make the inside even inside with the heat transmission to the inside of distillation box of passing through the inner wall of vapor heat exchange tube of the inside vapor of low temperature evaporation can for the even quilt of the medical waste liquid of distillation box inside is heated, and the sealing washer is sealed in stretching into the hole, makes setting up in the distillation box bottom of going up the connecting pipe liftable, has also avoided the phenomenon that the medical waste liquid in the distillation box spills.

As a further optimized scheme of the invention, at least three groups of distillation boxes are arranged inside the low-temperature evaporation tank, the discharge pipeline assembly comprises a first collection pipeline, a second collection pipeline and a third collection pipeline which are sequentially distributed up and down and arranged above the corresponding distillation box, a plurality of groups of distillation discharge pipelines communicated with the corresponding distillation box are fixedly arranged on the first collection pipeline, the second collection pipeline and the third collection pipeline, the first collection pipeline, the second collection pipeline and the third collection pipeline penetrate through the outer side surface of the low-temperature evaporation tank, and the lower ends of the first collection pipeline, the second collection pipeline and the third collection pipeline correspond to the collection boxes facing one side of the low-temperature evaporation tank.

Specifically, medical waste liquid in the distillation box is heated and distilled to form water vapor, the water vapor passes through the distillation discharge pipe and the first collection pipeline that corresponds, the second collection pipeline, the third collection pipeline is discharged, the purpose of distilling and discharging the effective substances that reach the evaporation point in the medical waste liquid is realized, the temperature around the three groups of distillation boxes of this department from the top down becomes low in proper order, accord with the phenomenon that the temperature runs off gradually after the water vapor rises, the purpose of heating and evaporating and discharging in grades the effective components in the medical waste liquid from low to high in proper order is realized, the first collection pipeline, the second collection pipeline, the effective components that third collection pipeline department discharged can be stayed in proper order and stored in the collection box that corresponds.

As a further optimization scheme of the invention, the side surface of each group of distillation boxes corresponding to the low-temperature evaporation tank is provided with a temperature control assembly, the temperature control assembly comprises a heat dissipation port arranged below the corresponding distillation box, the heat dissipation port is internally provided with a heat dissipation device, the heat dissipation device comprises a heat dissipation box fixed in the heat dissipation port, two end faces of the heat dissipation box are respectively provided with a heat dissipation hole communicated with the inside and the outside of the heat dissipation box, the heat dissipation box is internally provided with a heat dissipation cavity, the bottom of the heat dissipation cavity is fixedly provided with a transmission unit, the transmission unit is in transmission connection with a fan blade for sucking air below the distillation box out of the low-temperature evaporation tank, one surface of the heat dissipation box close to the outer side surface of the low-temperature evaporation tank is provided with an elastic cushion sealed at the end part of the corresponding heat dissipation hole, the elastic pad and the heat dissipation box are attached to each other and kept sealed, and the upper end and the lower end of the elastic pad are fixed to the upper end and the lower end of the heat dissipation box respectively.

Wherein, the temperature control subassembly controllable distillation case is around the temperature to make the active ingredient in the medical waste liquid of storage in the distillation case reach corresponding evaporation point and evaporated, specific: monitoring the heat around the bottom of the distillation box according to the monitoring unit, so that the heat of the medical waste liquid in the distillation box at the position can be accurately known, controlling the heat of the medical waste liquid in the distillation box at the position to be in a temperature threshold interval, increasing the working power of the heating unit if the temperature is lower than the threshold interval, increasing the heat generated by water vapor, starting the transmission unit if the temperature is high, driving the fan blades to be started by the transmission unit, extracting the heat around the distillation box and discharging the heat from the radiating holes, pushing the elastic pad to deform outwards by the heat flow discharged from the radiating holes, forming a radiating gap for discharging the heat flow between the elastic pad and the radiating box, and reducing the temperature around the distillation box at the position to a set threshold interval;

in the equipment, devices such as a servo motor can be used for the transmission unit, when the heat flow does not need to be discharged, the transmission unit can be closed, the elastic cushion utilizes the elastic reset function of the elastic cushion to be attached to the end part of the corresponding heat dissipation hole to seal the heat dissipation hole, and the water vapor is prevented from being discharged.

As a further optimization scheme of the invention, one side of the low-temperature evaporation tank is provided with an ultrasonic cleaning unit which utilizes ultrasonic waves to clean stains on the inner walls of the low-temperature evaporation tank and the distillation box, a lifting component is arranged below the ultrasonic cleaning unit and comprises a lower supporting plate fixedly welded on the side surface of the lower end of the low-temperature evaporating pot, the upper surface of the lower supporting plate is fixedly welded with a first lifting unit, the upper end of the first lifting unit is fixedly connected with an upper connecting plate, the upper connecting plate is of an L-shaped structure, one side surface of the upper connecting plate, which is far away from the low-temperature evaporating pot, is fixedly provided with a second lifting unit which is horizontally distributed and pushes the ultrasonic cleaning unit to be close to or far away from the low-temperature evaporating pot, the tip of supersound cleaning unit is provided with the ultrasonic transmission head, is provided with on the low temperature evaporating pot to correspond in the distillation case side and supply the ultrasonic transmission head to pass through in order to laminate the clearance mouth in the distillation case side.

In the device, the ultrasonic cleaning unit can be used for cleaning stains on the inner walls of the low-temperature evaporation tank and the distillation box, so that the scaling of the inner walls of the low-temperature evaporation tank and the distillation box is avoided, the low-temperature evaporation tank and the distillation box are integrally made of composite metal or titanium, the corrosion resistance effect of key parts is realized, and the ultrasonic cleaning unit is particularly suitable for medical waste liquid treatment;

the ultrasonic cleaning unit on the upper connecting plate can be pushed to move to different height positions on the side face of the low-temperature evaporation tank through the first lifting unit, the ultrasonic transmission head at the end part of the ultrasonic cleaning unit can transmit ultrasonic waves generated by the ultrasonic cleaning unit to the inner wall of the low-temperature evaporation tank through the outer wall of the low-temperature evaporation tank when being attached to the side face of the low-temperature evaporation tank so as to clean stains on the inner wall of the low-temperature evaporation tank, when the ultrasonic cleaning unit moves to a cleaning opening position, the ultrasonic cleaning unit can be pushed to move into the cleaning opening through the second lifting unit so that the ultrasonic transmission head is attached to the corresponding side face of the distillation box, and when the ultrasonic cleaning unit is started, the ultrasonic waves are transmitted to the inner wall of the distillation box through the outer wall of the distillation box so as to clean the stains on the inner wall of the distillation box;

in the equipment, the ultrasonic cleaning unit can use devices such as an ultrasonic generator, and the second lifting unit and the first lifting unit can use devices such as an electric push rod or an air cylinder.

As a further optimized scheme of the invention, a waste discharge pipe for discharging water or medical waste liquid residues inside the lower end of the low-temperature evaporation tank is arranged on the side surface of the lower end of the low-temperature evaporation tank, and a switch device is arranged in the waste discharge pipe.

After the medical waste liquid is distilled, the water in the lower end of the low-temperature evaporating pot is discharged through the waste discharge pipe, the corresponding upper connecting pipe is lowered to the bottom of the distilling box, so that the residual waste liquid in the distilling box is discharged to the lower end of the low-temperature evaporating pot and then discharged through the waste discharge pipe, the rest medical waste liquid is further treated, and the switch device can use devices such as an electromagnetic valve.

The invention discloses a method for low-temperature fractional condensation and deep recycling of medical waste liquid, which is suitable for a device for low-temperature fractional condensation and deep recycling of medical waste liquid, and comprises the following steps:

s1: pre-disinfection, namely performing disinfection pretreatment in a physical disinfection mode before discharging the medical waste liquid to a temporary storage box;

s2: performing low-temperature condensation treatment, namely discharging the pre-sterilized medical waste liquid into a temporary storage box for storage, wherein the temporary storage box has storage conditions of 40 ℃ and about minus 95 MPa;

s3: step-by-step collection, namely layering the medical waste liquid stored in the temporary storage box in a standing or heating mode, so that the waste liquid in different layers after layering of the medical waste liquid is stored in different distillation boxes, and the waste liquid in different layers is distributed in a plurality of groups of distillation boxes distributed from top to bottom in sequence according to the boiling points of the waste liquid in different layers from low to high;

s4: the degree of depth retrieval and utilization distills the inside medical waste liquid of distilling box in the low temperature evaporating pot, and the distilling box that distributes from the top down is unified to the vapor among the distillation process and is distilled, controls the distillation temperature around the different distilling boxes for medical waste liquid in the distilling box is discharged through discharge pipe assembly after being distilled, has realized the degree of depth retrieval and utilization of medical waste liquid, realizes the decrement of medical waste source.

As a further optimized scheme of the present invention, the physical disinfection manner in S1 includes: ultraviolet light, pasteurization, and steaming and sterilizing.

The invention has the beneficial effects that: according to the invention, through low-temperature condensation, fractional collection and deep distillation recycling, organic solvents, distilled water and the like in the medical waste liquid can be deeply collected and recycled, the purpose of reducing the amount of the medical waste liquid from the source is realized, and the problems of high difficulty in medical waste liquid entrusted hazardous waste treatment, high cost and great environmental pollution are solved;

the medical waste liquid is stored in a low-temperature condensation mode, so that pollutants can be kept in the medical waste liquid in the temporary storage box, the pollutants in the medical waste liquid are effectively prevented from entering air, and the purposes of recycling effective components in the medical waste liquid at different evaporation points and the like through grading and distillation are achieved, so that the purpose of deep recycling of the medical waste liquid is achieved;

when medical waste liquid in the temporary storage box enters the upper group of distillation boxes, the upper group of adjusting units are controlled to push the upper connecting pipes to ascend, so that the medical waste liquid in the upper group of distillation boxes cannot overflow the upper connecting pipes, when the medical waste liquid is stopped to be added into the upper group of distillation boxes, the medical waste liquid is settled in the upper group of distillation boxes, so that the medical waste liquid is layered, then the upper connecting pipes are controlled to descend through the adjusting units, so that the upper part of the medical waste liquid flows into the lower group of distillation boxes, the medical waste liquid continues to settle and layer in the lower group of distillation boxes, and then the upper part of the medical waste liquid continues to flow into the lower group of distillation boxes, so that the purpose of grading the medical waste liquid is achieved;

according to the invention, after medical waste liquid is graded in a plurality of groups of distillation boxes, a heating unit at the bottom of a low-temperature evaporation tank is started, water is stored at the bottom of the low-temperature evaporation tank, when the heating unit heats water, the water is boiled, the boiled water generates water vapor, the water vapor passes through corresponding water vapor heat exchange tubes after rising, the plurality of groups of distillation boxes are simultaneously heated, the temperature is gradually reduced when the distillation boxes from the lower part to the upper part are heated by the water vapor, the medical waste liquid in the distillation boxes is distilled and then discharged through a discharge pipeline assembly, the deep recycling of the medical waste liquid is realized, and the source reduction of the medical waste is realized;

the monitoring unit can monitor the heat around the bottom of the distillation box, so that the heat of the medical waste liquid in the distillation box can be accurately known, the proper heat is controlled to distill the medical waste liquid, and the recycling of the medical waste liquid with different evaporation points is realized; the ultrasonic cleaning unit can be used for cleaning stains on the inner walls of the low-temperature evaporating pot and the distilling box, scaling of the inner walls of the low-temperature evaporating pot and the distilling box is avoided, the low-temperature evaporating pot and the distilling box are integrally made of composite metal or titanium, the anti-corrosion effect of key parts is achieved, and the ultrasonic cleaning unit is particularly suitable for medical waste liquid treatment.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of the bottom structure of the distillation box of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;

FIG. 5 is an enlarged view of the structure at B in FIG. 3 according to the present invention;

FIG. 6 is a schematic view of the transfer device of the present invention;

fig. 7 is a schematic structural view of the elastic pad of the present invention when being blown by wind.

In the figure: the low-temperature evaporation tank 1, the temporary storage tank 2, the input pipeline 3, the negative pressure generating unit 4, the refrigerating unit 5, the discharge pipeline 6, the distillation tank 7, the distillation discharge pipeline 8, the steam heat exchange pipe 9, the first collecting pipeline 10, the second collecting pipeline 11, the third collecting pipeline 12, the heating unit 13, the waste discharge pipe 14, the lifting assembly 15, the ultrasonic cleaning unit 16, the heat dissipation port 17, the cleaning port 18, the one-way valve 19, the control unit 20, the lower support plate 21, the switch device 22, the transfer device 23, the collecting box 24, the inner support plate 25, the ultrasonic transmission head 26, the first lifting unit 27, the upper connection plate 28, the second lifting unit 29, the monitoring unit 30, the extending hole 31, the sealing ring 32, the upper connection pipe 33, the upper base plate 34, the anti-corrosion hose 35, the lower base plate 36, the lower connection pipe 37, the heat dissipation box 38, the heat dissipation cavity 39, the fan blades 40, the transmission unit 41, the heat dissipation holes 42, the heat dissipation holes, Elastic pad 43, heat dissipation gap 44, heat dissipation device 45.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

As shown in fig. 1 to 7, a device for low-temperature fractional condensation and deep recycling of medical waste liquid comprises a low-temperature evaporation tank 1, wherein a collection unit for fractional collection of effective components in the medical waste liquid is arranged in the low-temperature evaporation tank 1, the collection unit comprises distillation boxes 7, a plurality of groups of distillation boxes 7 are arranged in the upper part and the lower part of the low-temperature evaporation tank 1, and a temporary storage box 2 for storing the medical waste liquid before entering the distillation boxes 7 in the upper group is arranged on one side of the low-temperature evaporation tank 1;

the inside of the distillation box 7 is provided with a transfer device 23 for medical waste liquid in the distillation box 7 to enter the next-stage distillation box 7, the transfer device 23 comprises an upper connecting pipe 33, an anti-corrosion hose 35 and a lower connecting pipe 37, the upper connecting pipe 33, the anti-corrosion hose 35 and the lower connecting pipe 37 are sequentially and vertically fixedly connected, one side of the lower connecting pipe 37 is fixedly provided with a lower base plate 36, an adjusting unit is fixedly connected above the lower base plate 36, the upper end of the adjusting unit is fixedly provided with an upper base plate 34, the upper base plate 34 is fixed on one side of the upper connecting pipe 33, the lower surface of the distillation box 7 is provided with an extending hole 31 for the corresponding upper connecting pipe 33 to extend into the distillation box 7, the upper surface of the distillation box 7 is provided with a hole for the corresponding lower connecting pipe 37 to extend into and communicate with the inside of the distillation box 7, the side surface of the lower connecting pipe 37 at the lower end of the lower group of distillation boxes 7 is supported by an inner supporting plate 25 fixed on the inner wall of the low-temperature evaporation tank 1, the lower connecting pipe 37 is communicated with the interior of the lower end of the low-temperature evaporating pot 1, and the lower surface of the interior of the low-temperature evaporating pot 1 is provided with a heating unit 13 for heating water stored in the interior of the lower end of the low-temperature evaporating pot 1;

the distillation box 7 is provided with a vapor heat exchange tube 9 for steam generated after water at the lower end of the low-temperature evaporation tank 1 is heated to pass through, and the distillation box 7 is provided with a discharge pipeline assembly for discharging the medical waste liquid in the distillation box 7 after the medical waste liquid forms steam during distillation.

An input pipeline 3 for medical waste liquid of a hospital to enter the temporary storage box 2 is arranged at one end of the temporary storage box 2, a one-way valve 19 for the medical waste liquid to enter the temporary storage box 2 in a one-way mode is arranged in the input pipeline 3, the one-way valve 19 ensures that the medical waste liquid is conveyed to the inside of the temporary storage box 2 in a one-way mode without backflow, a negative pressure generating unit 4 for pumping negative pressure in the temporary storage box 2 and a refrigerating unit 5 for refrigerating the medical waste liquid in the temporary storage box 2 are arranged in the temporary storage box 2, a discharge pipeline 6 communicated with a group of distillation boxes 7 above the low-temperature evaporation tank 1 is arranged at the bottom of the temporary storage box 2, a control unit 20 for controlling the medical waste liquid in the temporary storage box 2 to enter the distillation boxes 7 above is arranged in the discharge pipeline 6, electromagnetic valves and other devices can be used by the control unit 20, and the medical waste liquid in the temporary storage box 2 can automatically flow into the distillation boxes 7 above the distillation boxes through the discharge pipeline 6 when the control unit 20 is opened.

According to the invention, through low-temperature condensation (40 ℃, about minus 95 MPa), graded collection and deep distillation recycling, organic solvents (ethanol and the like), distilled water and the like in the medical waste liquid can be deeply collected and recycled, the purpose of reducing the amount of the medical waste liquid from the source is realized, and the problems of high difficulty, high cost and great environmental pollution of medical waste liquid entrusted hazardous waste treatment are solved;

the low-temperature condensation can keep the pollutants in the medical waste liquid in the temporary storage box 2, effectively prevents the pollutants in the medical waste liquid from entering air, and realizes the recycling of effective components (ethanol) and the like in the medical waste liquid with different evaporation points through grading and distillation, thereby realizing the purpose of deep recycling of the medical waste liquid;

specifically, the method comprises the following steps:

firstly, negative pressure is extracted from the temporary storage box 2 through the negative pressure generating unit 4, medical waste liquid in an underground pipeline or a ground pipeline at a lower position can be automatically sucked into the temporary storage box 2 through the negative pressure effect in the temporary storage box 2, a mode that the treatment cost is increased by extracting the waste liquid through a suction pump is replaced, the refrigeration unit 5 refrigerates the medical waste liquid in the temporary storage box 2 to keep the medical waste liquid at about 40 ℃, the negative pressure generating unit 4 extracts negative pressure from the temporary storage box 2 to keep the temporary storage box 2 at about minus 95 MPa, pollutants can be kept in the medical waste liquid in the temporary storage box 2 through low-temperature condensation, and the pollutants in the medical waste liquid are effectively prevented from entering air;

in the apparatus, the negative pressure generating unit 4 may use a negative pressure machine or the like, and the refrigerating unit 5 may use a refrigerator or the like.

The bottom of the distillation box 7 is fixedly provided with a monitoring unit 30 for monitoring the temperature around the distillation box 7.

When the medical waste liquid in the temporary storage tank 2 enters the upper group of distillation tanks 7, the upper group of adjusting unit is controlled to push the upper connecting pipe 33 to rise so that the medical waste liquid in the upper group of distillation tanks 7 does not overflow the upper connecting pipe 33, when the addition of the medical waste liquid to the upper group of distillation tanks 7 is stopped, the medical waste liquid settles in the upper group of distillation tanks 7 to cause the medical waste liquid to stratify, then the upper connecting pipe 33 is controlled to descend through the adjusting unit so that the upper layer part of the medical waste liquid flows into the lower group of distillation tanks 7, the medical waste liquid continues to settle and stratify in the lower group of distillation tanks 7, and then the upper layer part of the medical waste liquid continues to flow into the lower group of distillation tanks 7, so that the purpose of classifying the medical waste liquid is achieved;

when the medical waste liquid is classified, in order to better stratify the medical waste liquid, a corresponding precipitation medicament can be added into the distillation tank 7 or the temporary storage tank 2, the medical waste liquid in the distillation tank 7 can also be heated and then kept stand, and when the medical waste liquid is stratified in the temporary storage tank 2, the control unit 20 is opened, so that the stratified medical waste liquid can be directly and sequentially discharged into a plurality of groups of distillation tanks 7, and the purpose of classification is realized;

when medical waste liquid is graded in a plurality of groups of distilling boxes 7, a heating unit 13 at the bottom of a low-temperature evaporating pot 1 is started, water is stored at the bottom of the low-temperature evaporating pot 1, when the heating unit 13 heats the water, the water is boiled, the boiled water generates water vapor, the water vapor passes through a corresponding water vapor heat exchange tube 9 after rising, the plurality of groups of distilling boxes 7 are simultaneously heated, the temperature is gradually reduced when the distilling boxes 7 from the lower part to the upper part are heated by the water vapor, the medical waste liquid in the distilling boxes 7 is distilled and then discharged through a discharge pipeline assembly, the deep recycling of the medical waste liquid is realized, and the source decrement of the medical waste is realized;

the monitoring unit 30 can monitor the heat around the bottom of the distillation box 7, so that the heat of the medical waste liquid in the distillation box 7 can be accurately known, the proper heat is controlled to distill the medical waste liquid, and the recycling of the medical waste liquid with different evaporation points is realized;

in the apparatus, the monitoring unit 30 may use a temperature sensor or the like, the adjusting unit may use an electric push rod or an air cylinder or the like, and the heating unit 13 may use an electric heating plate or the like.

The vapor heat exchange tubes 9 are of a circular tubular structure, the vapor heat exchange tubes 9 vertically penetrate through the upper surface and the lower surface of the distillation box 7, the vapor heat exchange tubes 9 are arranged in a plurality of groups at equal intervals, sealing rings 32 are fixedly arranged at inner rings extending into the holes 31, the sealing rings 32 are sealed between the inner rings extending into the holes 31 and outer rings of corresponding upper connecting tubes 33, and the lower connecting tubes 37 and the corresponding holes are fixed.

Further, the steam heat exchange tube 9 is provided with the multiunit, be convenient for make the inside even inside of passing through the inner wall of steam heat exchange tube 9 with the heat of low temperature evaporating pot 1 inside to the inside of distillation box 7 for the even quilt of the inside medical waste liquid of distillation box 7 is heated, and sealing washer 32 is sealed in stretching into hole 31, makes setting up in distillation box 7 bottom of going up connecting pipe 33 liftable, has also avoided the phenomenon that the medical waste liquid in the distillation box 7 spills.

Distillation case 7 is provided with three groups at least in low temperature evaporating pot 1's inside, the discharge pipe subassembly is including distributing from top to bottom in proper order and setting up the first collection pipeline 10 in the distillation case 7 top that corresponds, second collection pipeline 11, third collection pipeline 12, first collection pipeline 10, second collection pipeline 11, all fix on the third collection pipeline 12 and be provided with the distillation discharge pipe 8 of multiunit intercommunication in the distillation case 7 that corresponds, first collection pipeline 10, second collection pipeline 11, third collection pipeline 12 runs through the lateral surface of low temperature evaporating pot 1, first collection pipeline 10, second collection pipeline 11, the lower extreme of third collection pipeline 12 corresponds the collection box 24 towards low temperature evaporating pot 1 one side.

Specifically, the medical waste liquid in the distillation box 7 is heated and distilled to form water vapor, the water vapor is discharged through the distillation discharge pipeline 8 and the corresponding first collection pipeline 10, the second collection pipeline 11 and the third collection pipeline 12, the purpose of distilling and discharging effective substances reaching an evaporation point in the medical waste liquid is achieved, the temperature around the three groups of distillation boxes 7 at the position becomes lower from top to bottom in sequence, the phenomenon that the temperature is gradually lost after the water vapor rises is met, the purpose of sequentially heating and evaporating the effective components in the medical waste liquid from low to high to discharge the effective components in a grading manner is achieved, and the effective components discharged from the first collection pipeline 10, the second collection pipeline 11 and the third collection pipeline 12 can be sequentially left in the corresponding collection boxes 24 to be stored.

The side face, corresponding to each group of distillation box 7, of the low-temperature evaporation tank 1 is provided with a temperature control assembly, the temperature control assembly comprises a heat dissipation port 17 arranged below the corresponding distillation box 7, a heat dissipation device 45 is arranged in the heat dissipation port 17, the heat dissipation device 45 comprises a heat dissipation box 38 fixed inside the heat dissipation port 17, two end faces of the heat dissipation box 38 are provided with heat dissipation holes 42 communicated with the inside and the outside of the heat dissipation box, a heat dissipation cavity 39 is arranged inside the heat dissipation box 38, the bottom of the heat dissipation cavity 39 is fixedly provided with a transmission unit 41, the transmission unit 41 is in transmission connection with fan blades 40 sucking air below the distillation box 7 out of the low-temperature evaporation tank 1, one face, close to the outer side face of the low-temperature evaporation tank 1, of the heat dissipation box 38 is provided with an elastic cushion 43 sealed at the end of the corresponding heat dissipation hole 42, the elastic cushion 43 and the heat dissipation box 38 are attached to keep sealed, and the upper end and the lower end of the elastic cushion 43 are respectively fixed at the upper end and the lower end of the heat dissipation box 38.

Wherein, the temperature control subassembly can control the temperature around distilling box 7 to make the active ingredient in the medical waste liquid of storage in distilling box 7 reach corresponding evaporation point and evaporated, specific: monitoring the heat around the bottom of the distillation box 7 according to the monitoring unit 30, thereby accurately knowing the heat of the medical waste liquid in the distillation box 7, controlling the heat of the medical waste liquid in the distillation box 7 to be in a temperature threshold interval, if the temperature is lower than the threshold interval, increasing the working power of the heating unit 13 to increase the heat generated by the water vapor, if the temperature is in a high threshold interval, starting the transmission unit 41 to enable the transmission unit 41 to drive the fan blades 40 to start so as to extract the heat around the distillation box 7 and discharge the heat from the heat dissipation holes 42, wherein the heat flow discharged from the heat dissipation holes 42 pushes the elastic pad 43 to deform outwards, and a heat dissipation gap 44 for discharging the heat flow is formed between the elastic pad 43 and the heat dissipation box 38, so that the temperature around the distillation box 7 is reduced to the set threshold interval;

in the equipment, the transmission unit 41 can use a servo motor and other devices, when the heat flow does not need to be discharged, the transmission unit 41 can be closed, the elastic cushion 43 is attached to the end part of the corresponding heat dissipation hole 42 by utilizing the elastic reset function of the elastic cushion, so that the heat dissipation hole 42 is sealed, and the water vapor is prevented from being discharged.

One side of low temperature evaporating pot 1 is provided with the ultrasonic cleaning unit 16 who utilizes the ultrasonic wave to clean up stain on low temperature evaporating pot 1 and the distillation case 7 inner wall, the below of ultrasonic cleaning unit 16 is provided with lifting unit 15, lifting unit 15 is including fixed welding the lower support plate 21 in low temperature evaporating pot 1 lower extreme side, the fixed welding of upper surface of lower support plate 21 has first lifting unit 27, the upper end fixedly connected with upper junction plate 28 of first lifting unit 27, upper junction plate 28 is L font structure, one side that upper junction plate 28 kept away from low temperature evaporating pot 1 is fixed to be provided with the horizontal distribution and to promote ultrasonic cleaning unit 16 and be close to or keep away from the second lifting unit 29 of low temperature evaporating pot 1, the tip of ultrasonic cleaning unit 16 is provided with supersound transfer head 26, be provided with on low temperature evaporating pot 1 and correspond in distillation case 7 side and supply supersound transfer head 26 to pass through in order to laminate the clearance mouth 18 in distillation case 7 side.

In the device, the ultrasonic cleaning unit 16 can be used for cleaning stains on the inner walls of the low-temperature evaporation tank 1 and the distillation box 7, so that the inner walls of the low-temperature evaporation tank 1 and the distillation box 7 are prevented from scaling, the low-temperature evaporation tank 1 and the distillation box 7 are integrally made of composite metal or titanium, the corrosion resistance effect of key parts is realized, and the device is particularly suitable for medical waste liquid treatment;

the ultrasonic cleaning unit 16 on the upper connecting plate 28 can be pushed to move to different height positions on the side surface of the low-temperature evaporation tank 1 through the first lifting unit 27, when the ultrasonic transmission head 26 at the end part of the ultrasonic cleaning unit 16 is attached to the side surface of the low-temperature evaporation tank 1, ultrasonic waves generated by the ultrasonic cleaning unit 16 can be transmitted to the inner wall of the low-temperature evaporation tank 1 through the outer wall of the low-temperature evaporation tank 1 so as to clean stains on the inner wall of the low-temperature evaporation tank 1, when the ultrasonic cleaning unit 16 moves to the position of the cleaning opening 18, the ultrasonic cleaning unit 16 can be pushed to move into the cleaning opening 18 through the second lifting unit 29, so that the ultrasonic transmission head 26 is attached to the corresponding side surface of the distillation box 7, and when the ultrasonic cleaning unit 16 is started, the ultrasonic waves are transmitted to the inner wall of the distillation box 7 through the outer wall of the distillation box 7 so as to clean the stains on the inner wall of the distillation box 7;

in the device, the ultrasonic cleaning unit 16 can use a device such as an ultrasonic generator, and the second lifting unit 29 and the first lifting unit 27 can use a device such as an electric push rod or an air cylinder.

A waste discharge pipe 14 for discharging water or medical waste liquid residue inside the lower end of the low-temperature evaporation tank 1 is provided on the lower end side of the low-temperature evaporation tank 1, and a switch device 22 is provided in the waste discharge pipe 14.

After the medical waste liquid is distilled, the water in the lower end of the low-temperature evaporating pot 1 is discharged through the waste discharge pipe 14, the corresponding upper connecting pipe 33 is lowered to the bottom of the distilling box 7, the residual waste liquid in the distilling box 7 is discharged into the lower end of the low-temperature evaporating pot 1 and then discharged through the waste discharge pipe 14, the rest medical waste liquid is further treated, and the switch device 22 can use devices such as an electromagnetic valve.

The invention discloses a method for low-temperature fractional condensation and deep recycling of medical waste liquid, which is suitable for a device for low-temperature fractional condensation and deep recycling of medical waste liquid, and comprises the following steps:

s1: pre-disinfection, namely, disinfection pretreatment is carried out in a physical disinfection mode before the medical waste liquid is discharged to the temporary storage box 2;

s2: low-temperature condensation treatment, namely discharging the pre-sterilized medical waste liquid into a temporary storage tank 2 for storage, wherein the temporary storage tank 2 has storage conditions of 40 ℃ and about minus 95 MPa;

s3: step-by-step collection, namely layering the medical waste liquid stored in the temporary storage tank 2 in a standing or heating mode, so that the waste liquid in different layers after layering of the medical waste liquid is stored in different distillation tanks 7, and the waste liquid in different layers is distributed in a plurality of groups of distillation tanks 7 distributed from top to bottom in sequence according to the boiling points of the waste liquid in different layers from low to high;

s4: the degree of depth retrieval and utilization distills the medical waste liquid of distilling box 7 inside in low temperature evaporating pot 1, distills 7 from the top down the distilling box who distributes through vapor in the distillation process and unify the distillation, controls the distillation temperature around the different distilling box 7 for medical waste liquid in the distilling box 7 is discharged through discharge pipe assembly after being distilled, has realized the degree of depth retrieval and utilization of medical waste liquid, realizes the decrement of medical waste source.

The physical disinfection mode in S1 comprises the following steps: ultraviolet light, pasteurization, and steaming and sterilizing.

When the device works, firstly, the negative pressure generating unit 4 extracts negative pressure from the temporary storage tank 2, medical waste liquid in an underground pipeline or a ground pipeline at a low position can be automatically sucked into the temporary storage tank 2 through the negative pressure effect in the temporary storage tank 2, instead of a mode of increasing the treatment cost by using a suction pump to extract the waste liquid, the refrigerating unit 5 refrigerates the medical waste liquid in the temporary storage tank 2 to keep the medical waste liquid at about 40 ℃ and the negative pressure generating unit 4 extracts negative pressure from the temporary storage tank 2 to keep the temporary storage tank 2 at about 95 MPa, pollutants can be kept in the medical waste liquid in the temporary storage tank 2 through low-temperature condensation, and the pollutants in the medical waste liquid are effectively prevented from entering the air; when the medical waste liquid in the temporary storage box 2 enters the upper group of the distillation boxes 7, firstly, the upper group of the adjusting units are controlled to push the upper connecting pipes 33 to ascend, so that the medical waste liquid in the upper group of the distillation boxes 7 cannot overflow the upper connecting pipes 33, when the medical waste liquid is stopped to be added into the upper group of the distillation boxes 7, the medical waste liquid is settled in the upper group of the distillation boxes 7 to cause the medical waste liquid to be layered, then, the adjusting units are controlled to descend the upper connecting pipes 33, so that the upper part of the medical waste liquid flows into the lower group of the distillation boxes 7, the medical waste liquid is continuously settled and layered in the lower group of the distillation boxes 7, and then the upper part of the medical waste liquid is continuously flowed into the lower group of the distillation boxes 7, so that the purpose of grading the medical waste liquid is achieved;

when medical waste liquid is graded in a plurality of groups of distilling boxes 7, a heating unit 13 at the bottom of a low-temperature evaporating pot 1 is started, water is stored at the bottom of the low-temperature evaporating pot 1, when the heating unit 13 heats the water, the water is boiled, the boiled water generates water vapor, the water vapor passes through a corresponding water vapor heat exchange tube 9 after rising, the plurality of groups of distilling boxes 7 are simultaneously heated, the temperature is gradually reduced when the distilling boxes 7 from the lower part to the upper part are heated by the water vapor, the medical waste liquid in the distilling boxes 7 is distilled and then discharged through a discharge pipeline assembly, the deep recycling of the medical waste liquid is realized, and the source decrement of the medical waste is realized;

the medical waste liquid in the distillation box 7 is heated and distilled to form water vapor, the water vapor is discharged through the distillation discharge pipeline 8 and the corresponding first collection pipeline 10, the second collection pipeline 11 and the third collection pipeline 12, the purpose of distilling and discharging effective substances reaching an evaporation point in the medical waste liquid is achieved, the temperature around the three groups of distillation boxes 7 at the position becomes lower from top to bottom in sequence, the phenomenon that the temperature is gradually lost after the water vapor rises is met, the purpose of heating and evaporating the effective components in the medical waste liquid from low to high in sequence and discharging the effective components in a grading mode is achieved, and the effective components discharged from the first collection pipeline 10, the second collection pipeline 11 and the third collection pipeline 12 can be sequentially left in the corresponding collection boxes 24 to be stored.

The ultrasonic cleaning unit 16 on the upper connecting plate 28 can be pushed to move to different height positions on the side surface of the low-temperature evaporation tank 1 through the first lifting unit 27, the ultrasonic transmission head 26 at the end part of the ultrasonic cleaning unit 16 is attached to the side surface of the low-temperature evaporation tank 1 and can transmit ultrasonic waves generated by the ultrasonic cleaning unit 16 to the inner wall of the low-temperature evaporation tank 1 through the outer wall of the low-temperature evaporation tank 1 so as to clean stains on the inner wall of the low-temperature evaporation tank 1, when the ultrasonic cleaning unit 16 moves to the position of the cleaning opening 18, the ultrasonic cleaning unit 16 can be pushed to move to the cleaning opening 18 through the second lifting unit 29, the ultrasonic transmission head 26 is attached to the side surface of the corresponding distillation box 7, and when the ultrasonic cleaning unit 16 is started, the ultrasonic waves are transmitted to the inner wall of the distillation box 7 through the outer wall of the distillation box 7 so as to clean the stains on the inner wall of the distillation box 7.

In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the terminology used in the description presented above should not be understood as necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (10)

1. The device for low-temperature fractional condensation and deep recycling of medical waste liquid comprises a low-temperature evaporation tank (1), and is characterized in that a collection unit for fractional collection of effective components in the medical waste liquid is arranged in the low-temperature evaporation tank (1), the collection unit comprises a distillation box (7), a plurality of groups of distillation boxes (7) are arranged above and below the low-temperature evaporation tank (1), and a temporary storage box (2) for medical waste liquid to be stored before entering the distillation box (7) above the lower group is arranged on one side of the low-temperature evaporation tank (1);

the medical waste liquid transferring device comprises a transferring device (23) which is arranged in a distillation box (7) and used for allowing medical waste liquid in the distillation box (7) to enter a next-stage distillation box (7), wherein the transferring device (23) comprises an upper connecting pipe (33), an anti-corrosion hose (35) and a lower connecting pipe (37), the upper connecting pipe (33), the anti-corrosion hose (35) and the lower connecting pipe (37) are sequentially and vertically fixedly connected, a lower base plate (36) is fixedly arranged on one side of the lower connecting pipe (37), an adjusting unit is fixedly connected above the lower base plate (36), an upper base plate (34) is fixedly arranged at the upper end of the adjusting unit, the upper base plate (34) is fixedly arranged on one side of the upper connecting pipe (33), a corresponding extending hole (31) for extending the upper connecting pipe (33) into the distillation box (7) is formed in the lower surface of the distillation box (7), a corresponding lower connecting pipe (37) is arranged on the upper surface of the distillation box (7) and communicated with the hole in the distillation box (7), the side surfaces of lower connecting pipes (37) at the lower ends of the lower group of distillation boxes (7) are supported by an inner supporting plate (25) fixed on the inner wall of the low-temperature evaporation tank (1), the lower connecting pipes (37) are communicated with the interior of the lower end of the low-temperature evaporation tank (1), and a heating unit (13) for heating water entering the interior of the lower end of the low-temperature evaporation tank (1) and stored is arranged on the lower surface of the interior of the low-temperature evaporation tank (1);

the medical waste liquid distillation device is characterized in that a steam heat exchange pipe (9) for steam generated after water at the lower end of the low-temperature evaporation tank (1) is heated is arranged on the distillation tank (7), and a discharge pipeline assembly for discharging the steam formed during distillation of the medical waste liquid in the distillation tank (7) is arranged on the distillation tank (7).

2. The device for fractional low-temperature condensation and deep recycling of medical waste liquid according to claim 1, characterized in that: the medical waste liquid treatment device is characterized in that an input pipeline (3) for medical waste liquid of a hospital to enter the temporary storage box (2) is arranged at one end of the temporary storage box (2), a one-way valve (19) for the medical waste liquid to enter the temporary storage box (2) in a one-way mode is arranged in the input pipeline (3), a negative pressure generating unit (4) for pumping negative pressure into the temporary storage box (2) and a refrigerating unit (5) for refrigerating the medical waste liquid in the temporary storage box (2) are arranged in the temporary storage box (2), a discharge pipeline (6) communicated with a group of distillation boxes (7) above the inner portion of the low-temperature evaporation tank (1) is arranged at the bottom of the temporary storage box (2), and a control unit (20) for controlling the medical waste liquid in the temporary storage box (2) to enter the group of distillation boxes (7) above the discharge pipeline (6) is arranged in the discharge pipeline (6).

3. The device of claim 2 for fractional cryogenic condensation and deep recycling of medical waste fluids, wherein: and a monitoring unit (30) for monitoring the ambient temperature of the distillation box (7) is fixedly arranged at the bottom of the distillation box (7).

4. The device for fractional condensation and advanced recycling of medical waste liquid at low temperature according to claim 3, characterized in that: vapor heat exchange tube (9) are round tubular structure, and the vertical upper and lower surface that runs through distillation case (7) in vapor heat exchange tube (9), and vapor heat exchange tube (9) are the multiunit that the equidistance was provided with, the inner circle department that stretches into hole (31) is fixed and is provided with sealing washer (32), and sealing washer (32) are sealed stretching into between hole (31) inner circle and the outer lane of the last connecting pipe (33) that corresponds, it is fixed down between connecting pipe (37) and the corresponding hole.

5. The device of claim 4 for fractional cryogenic condensation and deep recycling of medical waste fluids, wherein: distillation case (7) are provided with three groups at least in the inside of low temperature evaporating pot (1), the discharge pipe assembly is including distributing and setting up first collection pipeline (10), second collection pipeline (11), third collection pipeline (12) in distillation case (7) top that correspond from top to bottom in proper order, all fixedly on first collection pipeline (10), second collection pipeline (11), the third collection pipeline (12) be provided with distillation discharge pipeline (8) of multiunit intercommunication in corresponding distillation case (7), the lateral surface of low temperature evaporating pot (1) is run through in first collection pipeline (10), second collection pipeline (11), third collection pipeline (12), the lower extreme of first collection pipeline (10), second collection pipeline (11), third collection pipeline (12) corresponds collection box (24) towards low temperature evaporating pot (1) one side.

6. The device of claim 5 for fractional cryogenic condensation and deep recycling of medical waste fluids, wherein: the side surface of each group of distillation boxes (7) corresponding to the low-temperature evaporation tank (1) is provided with a temperature control assembly, the temperature control assembly comprises a heat dissipation port (17) arranged below the corresponding distillation box (7), a heat dissipation device (45) is arranged in the heat dissipation port (17), the heat dissipation device (45) comprises a heat dissipation box (38) fixed inside the heat dissipation port (17), two end surfaces of the heat dissipation box (38) are respectively provided with a heat dissipation hole (42) communicated with the inside and the outside of the heat dissipation box, the inside of the heat dissipation box (38) is provided with a heat dissipation cavity (39), the bottom of the heat dissipation cavity (39) is fixedly provided with a transmission unit (41), the transmission unit (41) is in transmission connection with a fan blade (40) sucking air below the distillation box (7) out of the low-temperature evaporation tank (1), one surface of the heat dissipation box (38) close to the outer side surface of the low-temperature evaporation tank (1) is provided with an elastic cushion (43) sealed at the end part of the corresponding heat dissipation hole (42), the elastic pad (43) and the heat dissipation box (38) are attached to each other and kept sealed, and the upper end and the lower end of the elastic pad (43) are respectively fixed to the upper end and the lower end of the heat dissipation box (38).

7. The apparatus according to claim 6, wherein the apparatus for fractional condensation and deep recycling of medical waste liquid at low temperature comprises: an ultrasonic cleaning unit (16) for cleaning stains on the inner walls of the low-temperature evaporation tank (1) and the distillation box (7) by utilizing ultrasonic waves is arranged on one side of the low-temperature evaporation tank (1), a lifting assembly (15) is arranged below the ultrasonic cleaning unit (16), the lifting assembly (15) comprises a lower supporting plate (21) fixedly welded on the side face of the lower end of the low-temperature evaporation tank (1), a first lifting unit (27) is fixedly welded on the upper surface of the lower supporting plate (21), an upper connecting plate (28) is fixedly connected to the upper end of the first lifting unit (27), the upper connecting plate (28) is of an L-shaped structure, a second lifting unit (29) which is horizontally distributed and pushes the ultrasonic cleaning unit (16) to be close to or far away from the low-temperature evaporation tank (1) is fixedly arranged on one side face of the upper connecting plate (28) far away from the low-temperature evaporation tank (1), and an ultrasonic transfer head (26) is arranged at the end of the ultrasonic cleaning unit (16), the low-temperature evaporation tank (1) is provided with a cleaning port (18) which corresponds to the side surface of the distillation tank (7) and is used for the ultrasonic transmission head (26) to pass through so as to be attached to the side surface of the distillation tank (7).

8. The device of claim 7 for fractional cryogenic condensation and deep recycling of medical waste fluids, wherein: the side surface of the lower end of the low-temperature evaporating pot (1) is provided with a waste discharging pipe (14) for discharging water or medical waste liquid residues in the lower end of the low-temperature evaporating pot (1), and a switch device (22) is arranged in the waste discharging pipe (14).

9. A method for low-temperature fractional condensation and deep recycling of medical waste liquid is characterized by comprising the following steps: the device for fractional condensation and deep recycling of medical waste liquid at low temperature according to claim 8, comprising the following steps:

s1: pre-disinfection, namely performing disinfection pretreatment in a physical disinfection mode before discharging the medical waste liquid to a temporary storage box;

s2: performing low-temperature condensation treatment, namely discharging the pre-sterilized medical waste liquid into a temporary storage box for storage, wherein the temporary storage box has storage conditions of 40 ℃ and minus 95 MPa;

s3: step-by-step collection, namely layering the medical waste liquid stored in the temporary storage box in a standing or heating mode, so that the waste liquid in different layers after layering of the medical waste liquid is stored in different distillation boxes, and the waste liquid in different layers is distributed in a plurality of groups of distillation boxes distributed from top to bottom in sequence according to the boiling points of the waste liquid in different layers from low to high;

s4: the degree of depth retrieval and utilization distills the inside medical waste liquid of distilling box in the low temperature evaporating pot, and the distilling box that distributes from the top down is unified to the vapor among the distillation process and is distilled, controls the distillation temperature around the different distilling boxes for medical waste liquid in the distilling box is discharged through discharge pipe assembly after being distilled, has realized the degree of depth retrieval and utilization of medical waste liquid, realizes the decrement of medical waste source.

10. The method for low-temperature fractional condensation and deep recycling of medical waste liquid according to claim 9, characterized in that: the physical disinfection mode in the step S1 includes: ultraviolet light, pasteurization, and steaming and sterilizing.

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