Medical waste treatment equipment adopting flotation and microwave combined method

Abstract

The utility model provides medical waste treatment equipment combining flotation with a microwave method, which comprises a refined ash outer barrel, a refined ash inner barrel arranged in the refined ash outer barrel, a material guide mechanism arranged in the refined ash inner barrel, an air guide mechanism arranged in an interlayer between the refined ash outer barrel and the refined ash inner barrel, a feed port arranged at the top of the refined ash inner barrel, and a material outlet arranged at the bottom of the refined ash inner barrel. The bottom of the inner refined ash cylinder is provided with a discharge port, the lower end of one side of the outer refined ash cylinder is provided with a high-temperature inlet, the upper end of one side of the outer refined ash cylinder is provided with a discharge port, the feed port is connected with an output port of the flotation column through a pipeline, and the discharge port is connected with an input port of the granulator through a pipeline. The high-temperature inlet is connected with a flue gas port of the combustion tower through a high-temperature pipeline, and the discharge port is connected with a gas inlet port of the quench tower through a pipeline. By arranging a series of structures, high-temperature flue gas heat is used for fine ash granulation and microwave sintering heating, medical waste treatment heat utilization is achieved, energy consumption is reduced, the heat conduction contact area is large, and the heating utilization rate is high.

Description

Technical Field

[0001] The utility model relates to the technical field of medical waste treatment equipment, in particular to a medical waste treatment equipment by flotation combined with microwave method. Background Art

[0002] Medical waste belongs to special waste. Besides being easy to carry microorganisms such as viruses and bacteria, it may also carry different medicaments. Usually, incineration is adopted to treat this kind of waste. In the prior art, the incineration treatment method for medical waste can separate harmful components in fly ash and achieve efficient incineration of medical waste. Among them, the flotation combined with microwave method is a method for treating medical waste combustion flue gas.

[0003] In the prior art, for example, a method for treating medical waste based on flotation combined with microwave method disclosed in the patent with the application number CN201810718655.0 can treat the combustion flue gas of medical waste. However, the high-temperature flue gas generated by the incineration of medical waste carries abundant heat. Directly quenching and cooling the high-temperature flue gas not only consumes a large amount of energy, but also wastes heat seriously. Moreover, in the system for treating medical waste by flotation combined with microwave method, both granulation and microwave sintering require heating, resulting in high energy consumption for medical waste treatment. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a medical waste treatment equipment by flotation combined with microwave method with lower energy consumption and higher heating utilization rate.

[0005] The technical solution adopted by the utility model to solve the above technical problems is as follows:

[0006] A medical waste treatment equipment by flotation combined with microwave method includes an outer fine ash cylinder. An inner fine ash cylinder is arranged inside the outer fine ash cylinder. A material guiding mechanism is arranged inside the inner fine ash cylinder. An air guiding mechanism is arranged in the interlayer between the outer fine ash cylinder and the inner fine ash cylinder. A feed inlet is arranged at the top of the inner fine ash cylinder. A discharge outlet is arranged at the bottom of the inner fine ash cylinder. A high-temperature inlet is arranged at the lower end of one side of the outer fine ash cylinder. An emission port is arranged at the upper end of one side of the outer fine ash cylinder. The feed inlet is connected with the output port of the flotation column through a pipeline. The discharge outlet is connected with the input port of the granulator through a pipeline. The high-temperature inlet is connected with the flue gas port of the combustion tower through a high-temperature pipeline. The emission port is connected with the air inlet port of the quench tower through a pipeline. The flotation column, the granulator and the microwave system are connected.

[0007] Furthermore, the material guiding mechanism includes a central column and a material guiding spiral plate. The central column is arranged in the middle inside the inner fine ash cylinder. The material guiding spiral plate is arranged on the central column. The side of the material guiding spiral plate away from the central column is connected with the inner wall of the inner fine ash cylinder. The material guiding spiral plate divides the interior of the inner fine ash cylinder into a spiral-shaped material guiding channel.

[0008] Furthermore, the air guiding mechanism includes an air guiding spiral plate and an air guiding channel. An air guiding spiral plate is provided in the interlayer between the fine ash outer cylinder and the fine ash inner cylinder, and the air guiding spiral plate divides the interlayer into an air guiding channel with a spiral structure.

[0009] Furthermore, both the fine ash outer cylinder and the fine ash inner cylinder are arranged in a cylindrical structure. The fine ash inner cylinder and the material guiding spiral plate are both made of heat-conducting plate materials, and the fine ash outer cylinder is provided with a heat-insulating cylinder.

[0010] Furthermore, the spiral directions of the air guiding spiral plate and the material guiding spiral plate are set to be opposite.

[0011] Furthermore, a buffer tank and an air volume regulating valve are provided on the pipeline between the fine ash outer cylinder and the quench tower.

[0012] Furthermore, the microwave system includes a spray absorption tower, an activated carbon injector, a bag filter, a wet scrubber, an induced draft fan, and a microwave sintering furnace. The quench tower is connected to the input end of the spray absorption tower through a pipeline. The output end of the spray absorption tower is connected to the input end of the activated carbon injector through a pipeline. The output end of the activated carbon injector is connected to the input end of the bag filter through a pipeline. The ash discharge port at the bottom of the bag filter is connected to the input end of the bag filter ash cylinder through a pipeline. The output end of the bag filter ash cylinder is connected to the input end of the flotation column through a pipeline. The output end of the bag filter is connected to the input end of the wet scrubber through a pipeline. The output end of the wet scrubber is connected to the input end of the induced draft fan through a pipeline. The output end of the granulator is connected to the input end of the microwave sintering furnace through a pipeline. The output end of the microwave sintering furnace is connected to the input end of the pulverizer through a pipeline. The output end of the pulverizer is connected to the input end of the activated carbon preparation tank through a pipeline. The output end of the activated carbon preparation tank is connected to the activated carbon injector through a pipeline.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. For the medical waste treatment equipment using the combined flotation and microwave method in this application, by coordinating the microwave system with the flotation column, granulator, combustion tower, and quench tower, the medical waste treatment using the combined flotation and microwave method is realized. The combination of the fine ash outer cylinder and the fine ash inner sleeve utilizes the rich heat of the high-temperature flue gas of the combustion tower for fine ash granulation and microwave sintering heating in the combined flotation and microwave, realizing the heat utilization of the medical waste combined flotation and microwave treatment, reducing the flue gas temperature, and reducing energy consumption.

[0015] 2. In this application, through the central column and the material guiding spiral plate arranged in the fine ash inner sleeve, and the air guiding spiral plate arranged in the interlayer between the fine ash outer cylinder and the fine ash inner cylinder, the fine ash is spirally conveyed downward from top to bottom through the material guiding channel of the material guiding spiral plate, and the high-temperature flue gas flows upward in a spiral shape through the air guiding channel of the air guiding spiral plate. The heat conduction contact area is large, and the heating utilization rate is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the structure of the fine ash inner cylinder in the present utility model;

[0018] Figure 3 is a schematic diagram of the structure of the fine ash outer cylinder in the present utility model.

[0019] In the figure: 1, fine ash outer cylinder; 2, fine ash inner cylinder; 3, central column; 31, material guiding spiral plate; 32, material guiding channel; 4, air guiding spiral plate; 41, air guiding channel; 5, feed inlet; 6, discharge outlet; 7, high-temperature inlet; 8, discharge port; 9, flotation column; 10, granulator; 11, high-temperature pipeline; 12, combustion tower; 13, quench tower; 14, spray absorption tower; 15, activated carbon injector; 16, bag filter; 17, wet scrubber; 18, induced draft fan; 19, microwave sintering furnace; 20, buffer tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the drawings and specific embodiments.

[0021] As Figures 1 to 3 shown, the medical waste treatment equipment of the flotation combined with microwave method in this embodiment includes a fine ash outer cylinder 1. A fine ash inner cylinder 2 is arranged inside the fine ash outer cylinder 1. A material guiding mechanism is arranged inside the fine ash inner cylinder 2. An air guiding mechanism is arranged in the interlayer between the fine ash outer cylinder 1 and the fine ash inner cylinder 2. A feed inlet 5 is arranged at the top of the fine ash inner cylinder 2. A discharge outlet 6 is arranged at the bottom of the fine ash inner cylinder 2. A high-temperature inlet 7 is arranged at the lower end of one side of the fine ash outer cylinder 1. A discharge port 8 is arranged at the upper end of one side of the fine ash outer cylinder 1. The feed inlet 5 is connected to the output port of the flotation column 9 through a pipeline. The discharge outlet 6 is connected to the input port of the granulator 10 through a pipeline. The high-temperature inlet 7 is connected to the flue gas port of the combustion tower 12 through a high-temperature pipeline 11. The discharge port 8 is connected to the intake port of the quench tower 13 through a pipeline. The flotation column 9 and the granulator 10 are connected to the microwave system; The high-temperature flue gas flowing from bottom to top conducts heat to heat the fine ash flowing from top to bottom. The heating temperature difference space range is large, the heat conduction contact area is large, and the heating utilization rate is high, realizing the medical waste treatment of the flotation combined with microwave method; The rich heat of the high-temperature flue gas of the combustion tower 12 is used for fine ash granulation and microwave sintering heating in the flotation combined with microwave, realizing the heat utilization of the medical waste flotation combined with microwave treatment, reducing the flue gas temperature and reducing energy consumption.

[0022] Specifically, the material guiding mechanism includes a central column 3 and a material guiding spiral plate 31. A central column 3 is arranged in the middle inside the fine ash inner cylinder 2, and a material guiding spiral plate 31 is arranged on the central column 3. One side of the material guiding spiral plate 31 away from the central column 3 is connected to the inner wall of the fine ash inner cylinder 2. The material guiding spiral plate 31 divides the interior of the fine ash inner cylinder 2 into a spiral-shaped material guiding channel 32. The fine ash is transported spirally from top to bottom through the material guiding channel 32 of the material guiding spiral plate 31.

[0023] Furthermore, the air guiding mechanism includes an air guiding spiral plate 4 and an air guiding channel 41. An air guiding spiral plate 4 is arranged in the interlayer between the fine ash outer cylinder 1 and the fine ash inner cylinder 2. The air guiding spiral plate 4 divides the interlayer into a spiral-shaped air guiding channel 41. The outer side of the air guiding spiral plate 4 is connected to the inner wall of the fine ash outer cylinder 1, and the inner side of the air guiding spiral plate 4 is connected to the outer wall of the fine ash inner cylinder 2. The high-temperature flue gas flows spirally from bottom to top through the air guiding channel 41 of the air guiding spiral plate 4.

[0024] Furthermore, both the fine ash outer cylinder 1 and the fine ash inner cylinder 2 are arranged in a cylindrical structure; preferably, both the fine ash inner cylinder 2 and the material guiding spiral plate 31 are made of heat-conducting plate materials, so that both the fine ash inner cylinder 2 and the material guiding spiral plate 31 can conduct heat on the high-temperature flue gas, making the temperature inside the fine ash inner cylinder 2 high, and the material guiding spiral plate 31 can also heat the passing fine ash; the fine ash outer cylinder 1 is arranged as a heat-insulating cylinder to reduce the heat dissipation loss of the outer transfer of the fine ash outer cylinder 1.

[0025] Furthermore, the spiral directions of the air guiding spiral plate 4 and the material guiding spiral plate 31 are arranged in opposite directions, and the flue gas flow direction is opposite to the fine ash conveying direction, so the heat conduction and heating effect is better.

[0026] Furthermore, a buffer tank 20 and an air volume regulating valve are arranged on the pipeline between the fine ash outer cylinder 1 and the quench tower 13. The air volume regulating valve is arranged on the pipeline between the buffer tank 20 and the quench tower 13, which can buffer and regulate the treated flue gas, and the stability is better.

[0027] Furthermore, the microwave system includes a spray absorption tower 14, an activated carbon injector 15, a bag filter 16, a wet scrubber 17, an induced draft fan 18, and a microwave sintering furnace 19. The quench tower 13 is connected to the input end of the spray absorption tower 14 through a pipeline. The output end of the spray absorption tower 14 is connected to the input end of the activated carbon injector 15 through a pipeline. The output end of the activated carbon injector 15 is connected to the input end of the bag filter 16 through a pipeline. The ash discharge port at the bottom of the bag filter 16 is connected to the input end of the bag filter ash cylinder through a pipeline. The output end of the bag filter ash cylinder is connected to the input end of the flotation column 9 through a pipeline. The output end of the bag filter 16 is connected to the input end of the wet scrubber 17 through a pipeline. The output end of the wet scrubber 17 is connected to the input end of the induced draft fan 18 through a pipeline. The output end of the granulator 10 is connected to the input end of the microwave sintering furnace 19 through a pipeline. The output end of the microwave sintering furnace 19 is connected to the input end of the pulverizer through a pipeline. The output end of the pulverizer is connected to the input end of the activated carbon preparation tank through a pipeline. The output end of the activated carbon preparation tank is connected to the activated carbon injector 15 through a pipeline to achieve flotation microwave treatment.

[0028] The usage method of this embodiment is as follows: Medical waste is placed in the combustion tower 12 for combustion. The high-temperature flue gas generated by combustion enters the interlayer between the fine ash outer cylinder 1 and the fine ash inner cylinder 2 through the high-temperature pipeline 11 from the high-temperature inlet 7. The fine ash generated by the operation of the flotation column 9 enters the fine ash inner cylinder 2 through the feed port 5. Since the center column 3 and the material guiding spiral plate 31 are provided inside the fine ash inner cylinder 2, the material guiding spiral plate 31 divides the interior of the fine ash inner cylinder 2 into a spiral-shaped material guiding channel 32. The fine ash in the fine ash inner cylinder 2 is transported spirally from top to bottom through the material guiding channel 32 of the material guiding spiral plate 31. And a wind guiding spiral plate 4 is provided in the interlayer between the fine ash outer cylinder 1 and the fine ash inner cylinder 2. The wind guiding spiral plate 4 divides the interlayer into a spiral-shaped wind guiding channel 41. The high-temperature flue gas flows spirally from bottom to top through the wind guiding channel 41 of the wind guiding spiral plate 4. Using the principle of heat transfer, the high-temperature flue gas flowing from bottom to top conducts heat to heat the fine ash transported from top to bottom. The heating temperature difference has a large spatial range, the heat conduction contact area is large, and the heating utilization rate is high. The heated fine ash enters the granulator 10 through the pipeline from the discharge port 6. The flue gas after heat exchange enters the quenching tower 13 through the pipeline, the buffer tank 20, and the air volume regulating valve for temperature reduction treatment. Under the action of the induced draft fan 18, it enters the spray absorption tower 14 for spray absorption treatment after temperature reduction, and then enters the activated carbon injector 15 through the pipeline. The activated carbon injector 15 injects the activated carbon in the activated carbon preparation tank into the passing air, and then enters the bag filter 16. The bag filter 16 filters and collects the activated carbon in the air, and after filtration, it enters the wet scrubber 17 through the pipeline for scrubbing treatment, and finally is discharged. The activated carbon collected by the bag filter 16 enters the flotation column 9 from the bag filter ash cylinder. The fine ash generated by the flotation column 9 enters the fine ash inner cylinder 2 for heating. The heated fine ash enters the granulator 10 for granulation, and after granulation, it enters the microwave sintering furnace 19 for sintering treatment. After sintering, it is sent to a crusher for crushing. The crushed activated carbon can be used by the activated carbon preparation tank for the activated carbon injector 15 to realize the medical waste treatment by the flotation combined with the microwave method. The abundant heat of the high-temperature flue gas in the combustion tower 12 is used for granulation of fine ash and microwave sintering heating in the flotation combined with the microwave, realizing the heat utilization of medical waste flotation combined with the microwave treatment, reducing the flue gas temperature, and reducing the energy consumption of the quenching tower 13.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Those skilled in the art can modify or equivalently replace the technical solutions recorded in the foregoing embodiments. Any modifications, equivalent replacements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A medical waste treatment device using a flotation combined microwave method, comprising a fine ash outer cylinder (1), characterized in that: A fine ash inner cylinder (2) is provided inside the fine ash outer cylinder (1), a material guide mechanism is provided inside the fine ash inner cylinder (2), and an air guide mechanism is provided in the interlayer between the fine ash outer cylinder (1) and the fine ash inner cylinder (2); a feed port (5) is provided at the top of the fine ash inner cylinder (2), and a discharge port (6) is provided at the bottom of the fine ash inner cylinder (2); a high-temperature inlet (7) is provided at the lower end of one side of the fine ash outer cylinder (1), and a discharge port (8) is provided at the upper end of one side of the fine ash outer cylinder (1); the feed port (5) is connected to the output port of a flotation column (9) through a pipeline, and the discharge port (6) is connected to the input port of a granulator (10) through a pipeline; the high-temperature inlet (7) is connected to the smoke port of a combustion tower (12) through a high-temperature pipeline (11), and the discharge port (8) is connected to the air inlet port of a quenching tower (13) through a pipeline; the flotation column (9) and the granulator (10) are connected to a microwave system.

2. The medical waste treatment equipment using flotation combined with microwave method according to claim 1 is characterized in that: The material guiding mechanism comprises a central column (3) and a material guiding spiral plate (31); the central column (3) is arranged in the middle of the fine ash inner cylinder (2); the material guiding spiral plate (31) is arranged on the central column (3); the side of the material guiding spiral plate (31) away from the central column (3) is connected to the inner wall of the fine ash inner cylinder (2); the material guiding spiral plate (31) divides the interior of the fine ash inner cylinder (2) into a material guiding channel (32) with a spiral structure.

3. The medical waste treatment equipment of flotation combined with microwave method according to claim 2 is characterized in that: The air guide mechanism comprises an air guide spiral plate (4) and an air guide channel (41); the air guide spiral plate (4) is provided in the interlayer between the fine ash outer cylinder (1) and the fine ash inner cylinder (2); the air guide spiral plate (4) divides the interlayer into the air guide channel (41) with a spiral structure.

4. The medical waste treatment equipment using flotation combined with microwave method according to claim 2 is characterized in that: The refined ash outer cylinder (1) and the refined ash inner cylinder (2) are both arranged in a cylindrical structure, the refined ash inner cylinder (2) and the material guiding spiral plate (31) are both made of heat conducting plate material, and the refined ash outer cylinder (1) is arranged in a heat-insulating cylinder.

5. The medical waste treatment equipment using flotation combined with microwave method according to claim 3 is characterized in that: The spiral directions of the air guide spiral plate (4) and the material guide spiral plate (31) are opposite.

6. The medical waste treatment equipment of flotation combined with microwave method according to claim 1 is characterized in that: A buffer tank (20) and an air volume regulating valve are provided on the pipeline between the fine ash outer cylinder (1) and the quenching tower (13).

7. The medical waste treatment equipment using flotation combined with microwave method according to claim 1 is characterized in that: The microwave system comprises a spray absorption tower (14), an activated carbon injector (15), a bag dust collector (16), a wet scrubber (17), an induced draft fan (18) and a microwave sintering furnace (19); the quenching tower (13) is connected to the input end of the spray absorption tower (14) through a pipeline; the output end of the spray absorption tower (14) is connected to the input end of the activated carbon injector (15) through a pipeline; the output end of the activated carbon injector (15) is connected to the input end of the bag dust collector (16) through a pipeline; the output end of the bag dust collector (16) is connected to the input end of the wet scrubber (17) through a pipeline; the output end of the wet scrubber (17) is connected to the input end of the induced draft fan (18) through a pipeline; the output end of the granulator (10) is connected to the input end of the microwave sintering furnace (19) through a pipeline; and the output end of the microwave sintering furnace (19) is connected to the input end of the pulverizer through a pipeline.

8. The medical waste treatment equipment using flotation combined with microwave method according to claim 7 is characterized in that: The ash discharge port at the bottom of the bag filter (16) is connected to the input end of the bag fly ash drum through a pipeline, and the output end of the bag fly ash drum is connected to the input end of the flotation column (9) through a pipeline; the output end of the pulverizer is connected to the input end of the activated carbon preparation tank through a pipeline, and the output end of the activated carbon preparation tank is connected to the activated carbon injector (15) through a pipeline.

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