CN111550799A - Community case screening system and method based on harmless disposal of infectious waste - Google Patents

Abstract

A community case screening system and method based on harmless disposal of infectious waste comprises a detection cabin, an isolation cabin and a disposal cabin; the detection cabin, the isolation cabin and the disposal cabin are matched for use; a plurality of detection areas are arranged on one side in the detection cabin, an access door is arranged on the side wall where each detection area is located, the rest areas in the detection cabin are working areas, and the working areas are provided with access ports independently; a plurality of isolation areas are arranged on the wall of one side in the isolation chamber, a purification area is arranged between adjacent isolation areas, the rest areas in the isolation chamber are channels, and an access is arranged on one side of each channel; the treatment cabin adopts a high-temperature plasma gasification melting technology, can quickly kill an infection source and simultaneously realize extremely high volume reduction rate, and does not generate secondary pollution. The detection cabin, the isolation cabin and the disposal cabin of the invention are all container structures, are convenient to transport, have strong maneuverability, can quickly set up a case screening system in a community, and realize the functions of detection, isolation and harmless on-site treatment of infectious waste.

Description

A community case screening system and method based on the harmless disposal of infectious waste

technical field

The invention belongs to the technical field of infectious disease screening and infectious waste disposal, and in particular relates to a community case screening system and method based on the harmless disposal of infectious waste.

Background technique

When a serious public health emergency occurs, community-level case screening is an effective means to prevent the spread of infection sources. However, due to the lack of necessary hardware support, community-level case screening is highly dangerous. In the early stage, a large number of medical staff and community workers were infected, which not only threatened the lives of the staff, but also seriously hindered the smooth development of the screening work.

At the same time, a large amount of testing waste generated during the screening process, as well as potential sources of infection such as household necessities of suspected cases, must be properly handled in a timely manner. The current treatment method is mainly to transfer to a centralized processing site for treatment. The defects are: 1 . There is a risk of secondary spread of the virus during the transfer process; 2. The centralized processing site cannot handle the sudden increase in the production of infectious waste during the public health event.

There are also some miniaturized and mobile medical waste disposal systems that have been put into use, but most of these systems have problems such as low level of reduction, poor harmless effect, and serious secondary pollution, and cannot be applied in areas with high population density. .

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a community case screening system and method based on the harmless disposal of infectious waste to solve the above problems.

To achieve the above object, the present invention adopts the following technical solutions:

A community case screening system based on the harmless disposal of infectious waste, including a detection cabin, an isolation cabin and a disposal cabin; the detection cabin, the isolation cabin and the disposal cabin are used together; a number of detection areas are arranged on one side wall of the detection cabin , the side wall where each detection area is located is provided with an exit door, and the rest of the inspection cabin is a work area, and the work area is provided with a separate entrance and exit; a number of isolation areas are set on one side wall of the isolation cabin, and the adjacent isolation areas are There is a purification area in the room, the rest of the area in the isolation cabin is a passage, and an entrance and exit are arranged on one side of the passage;

The disposal cabin includes a shell, a material extraction module, a gasification and melting module, a post-processing module and a control module; the shell is divided into an equipment area and a control area, and the material extraction module, gasification and melting module and post-processing module are all set in the equipment area. The material extraction module, the gasification melting module and the post-processing module are connected in sequence, and the control module is arranged in the control area;

The gasification melting module includes a plasma gasification melting furnace, an air arc plasma torch, a burner and a secondary combustion chamber; the air arc plasma torch is arranged on the plasma gasification melting furnace, and the burner is connected to the plasma gasification melting furnace , the upper part of the plasma gasification melting furnace is connected with one end of the second combustion chamber section, and the other end of the second combustion chamber section is connected with the post-processing module; the top of the plasma gasification melting furnace is provided with a feeding port, and the feeding port is connected with the material extraction module. connect;

The post-processing module includes a quenching deacidification tower, a bag filter and a hydroxyl generator; the inlet of the quenching deacidification tower is connected to the secondary combustion chamber section, the outlet of the quenching deacidification tower is connected to a bag filter, and the bag filter is connected to the hydroxyl generator.

Further, the control module includes a power distribution cabinet, a control cabinet, a plasma torch power supply and a console; the plasma torch power supply is connected to the power distribution cabinet, and the control cabinet is connected to the plasma torch power supply, the material extraction module, the combustion module and the post-processing module, and the control The console is connected to the control cabinet.

Further, the material extraction module is a material extraction machine, and a slag removal device is provided at the bottom of the plasma gasification melting furnace.

Further, the burner is a diesel burner, the burner is connected with a diesel storage tank, and the diesel storage tank is arranged on the inner bottom plate of the shell between the quenching deacidification tower and the bag filter.

Further, the air arc plasma torch is connected with a chiller and a deionized water tank, and the chiller provides cooling water for the air arc plasma torch; the deionized water tank stores the deionized cooling water for the air arc plasma torch; the chiller is arranged in the lift. The side of the material module; the deionized water tank is arranged on the side of the quenching deacidification tower.

Further, both the air arc plasma torch and the secondary combustion chamber section are connected with an air compressor, and a pressure stabilization tank is arranged on the outlet of the air compressor; the air compressor is arranged on the side of the plasma gasification melting furnace.

Further, the quenching deacidification tower is connected with a lye storage tank; the hydroxyl generator is connected with an induced draft fan, and the induced draft fan is connected with a chimney; the lye liquid storage tank is arranged on the deionized water tank; and the chimney is arranged on the side of the bag filter.

Further, the shells of the detection cabin, the isolation cabin and the disposal cabin are all cuboid-shaped container-type sealed shells.

Further, the tops of the detection cabin and the isolation cabin are provided with a pressure regulating device, an air purification device, a ventilation and disinfection device, and a network access device.

Further, a method for a community case screening system based on the harmless disposal of infectious waste, comprising the following steps:

1) Connect external power supply cables, water supply pipes, and drainage pipes, and perform necessary testing; the infectious waste generated in the testing chamber is transported to the feeder in the disposal chamber, and the suspected infected persons detected in the testing chamber enter the isolation chamber;

2) Turn on the air compressor and induced draft fan to provide system aerodynamic and negative pressure environment;

3) Raise the temperature in the plasma gasifier to 800°C with a diesel burner;

4) Open the air arc plasma torch, raise the temperature in the plasma gasification melting furnace to above 1200°C, and complete the preparatory work before processing;

5) The feeder lifts and delivers the infectious waste into the feeding port of the plasma gasification melting furnace;

6) The infectious waste is reacted in the lower part of the plasma gasification melting furnace: ① the infectious source is rapidly inactivated; ② the organic matter is gasified and decomposed into CO, H ₂ , CH ₄ and other small molecular gases, which are moved upward under the action of the induced draft fan ③ A small amount of inorganic matter is melted at the bottom of the gasification melting furnace, and discharged from the plasma gasification melting furnace from the slag discharge port;

7) The inorganic molten slurry is discharged out of the furnace from the slag discharge port and then enters the slag fishing device for water quenching and recovery;

8) Small molecular gases such as CO, H ₂ , CH ₄ enter the upper part of the plasma gasification melting furnace and the second combustion chamber, and mix and burn with the air sent by the air compressor to form mainly water vapor and CO ₂ The flue gas of about 1000 ℃;

9) The flue gas enters the quenching deacidification tower, and the lye solution is sprayed by the nozzle to achieve two parts: ① Rapidly reduce the flue gas from 1000°C to 200°C, avoiding the dioxin compound range; ② The lye solution and a small amount of acid gas reaction to remove it;

10) The flue gas after quenching and deacidification enters the bag filter to remove the dust mixed therein;

11) The flue gas after dust removal enters the hydroxyl generator to remove residual organic matter and nitrogen oxides with a small amount of odor;

12) The final clean exhaust gas is sent to the chimney through the induced draft fan and discharged.

Compared with the prior art, the present invention has the following technical effects:

The detection cabin, the isolation cabin and the disposal cabin of the invention are all container structures, which are convenient for transportation, have strong mobility, can quickly build a case screening system in the community, and realize the functions of detection, isolation and harmless on-site treatment of infectious wastes. It provides the possibility for in-depth front-line (community, street) screening, and can be used as an effective supplement to central hospitals when major public health events occur;

The three functional cabins of the present invention are constructed based on standard containers, which are convenient for transportation and can be flexibly combined, not only can be used as community screening and detection nodes, but also can be combined into a temporary isolation camp or medical point by combining multiple cabins;

The system of the present invention is connected to the operator network, and can conduct real-time interaction with the superior hospital or the command center for the information of the tested personnel, test data, test results, etc., and has the function of a regional temporary command center;

The positive pressure working area of the detection cabin of the present invention can effectively reduce the wearing standard requirements for the personal protective equipment of the staff, and avoid the physical discomfort caused by the staff wearing the protective clothing for a long time;

The disposal cabin of the present invention is finely designed and reasonably arranged, and all equipment, auxiliary devices, power devices and measurement and control devices of the high-temperature plasma infectious waste disposal system are arranged in the container, and it has the ability to be loaded on container vehicles or large medical ships. While giving full play to the characteristics of high temperature plasma gasification and melting technology to dispose of infectious waste, such as high speed, high volume reduction rate and zero pollution, it also realizes the ability of mobile and on-site disposal, and adopts the most advanced high temperature plasma gasification and melting technology. , while quickly eliminating the source of infection, it does not pollute the surrounding environment at all, and will not cause discomfort to staff and surrounding residents.

Description of drawings

Fig. 1 is the layout schematic diagram of the detection cabin of the present invention;

Fig. 2 is the layout schematic diagram of the isolation cabin of the present invention;

FIG. 3 is a schematic diagram of the layout of the disposal cabin of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the present invention is further described:

Please refer to Figure 1 to Figure 3, a community case screening system based on the harmless disposal of infectious waste, including a detection cabin, an isolation cabin and a disposal cabin; the detection cabin, the isolation cabin and the disposal cabin are used together; There are several detection areas on the side, and the side wall where each detection area is located is provided with an exit door. The rest of the inspection cabin is a work area, and the work area is provided with a separate entrance and exit; a number of isolation areas are set on one side wall of the isolation cabin. A purification area is set between adjacent isolation areas, the rest of the isolation cabin is a passage, and an entrance and exit are provided on one side of the passage;

The disposal cabin includes a shell, a material extraction module, a gasification and melting module, a post-processing module and a control module; the shell is divided into an equipment area and a control area, and the material extraction module, gasification and melting module and post-processing module are all set in the equipment area. The material extraction module, the gasification melting module and the post-processing module are connected in sequence, and the control module is arranged in the control area.

As the main system of the detection work, the detection cabin mainly completes the work of collecting the detection samples of the screened personnel. The testing cabin consists of a working area and several testing areas. The working area is the area where medical staff stay and is completely isolated from the testing area; Cross-infection occurs when people stay in the same area successively. At the same time, the data system of the entire inspection cabin can be connected to the 5G network to realize real-time interaction of inspection data.

Figure 1 shows the layout of the testing cabin. The cabin is based on a standard 40-foot container. One side is the work and material storage area. It is the area where medical staff work and test materials. The whole area maintains positive pressure relative to the outside world; the other side is 4 detection areas isolated from each other, which can perform 4 sets of detection at the same time. There is a detection window between the detection area and the working area, and the staff collects data through the flexible arm cover on the detection window. samples and avoid direct contact with the person being tested.

Some suspected cases found during the screening process in the isolation cabin can be temporarily isolated here, waiting to be transferred to designated medical institutions. An isolation cabin has several small areas separated from each other, the small areas are not connected to each other, and all maintain a negative pressure relative to the outside world, so as to prevent the air in the cabin from polluting the outside area. Figure 2 shows the layout of the isolation cabin. The cabin is based on a standard 40-foot container. One side is a channel, and the other side is four isolation areas. There is a purification area between the isolation area and the channel to prevent people from entering and leaving. in the virus diffusion channel. Each isolation area can realize a negative pressure environment, and the air pressure adjustment and air purification devices are arranged on the top of the cabin.

The gasification melting module of the disposal cabin includes a plasma gasification melting furnace 2, an air arc plasma torch 3, a burner 4 and a secondary combustion chamber section 6; the air arc plasma torch 3 is arranged on the plasma gasification melting furnace 2, The burner 4 is connected to the plasma gasification melting furnace 2, the upper part of the plasma gasification melting furnace 2 is connected with one end of the second combustion chamber section 6, and the other end of the second combustion chamber section 6 is connected to the post-processing module; the plasma gasification melting furnace 2 The top of the machine is provided with a feeding port, and the feeding port is connected with the material lifting module;

The post-processing module includes a quenching deacidification tower 7, a bag filter 9 and a hydroxyl generator 10; the inlet of the quenching deacidification tower 7 is connected to the second combustion chamber section 6, and the outlet of the quenching deacidification tower 7 is connected to a bag filter 9, a bag filter 9 Connect the hydroxyl generator 10.

The control module includes a power distribution cabinet 20, a control cabinet 21, a plasma torch power supply 22 and a console 23; the plasma torch power supply 22 is connected to the power distribution cabinet 20 and the control cabinet 21, and the control cabinet 21 is connected to the plasma torch power supply 22 and the material extraction module , combustion module and post-processing module, the console 23 is connected to the control cabinet 21 .

The material extraction module is a material extraction machine 1 , and a slag removal device 5 is provided at the bottom of the plasma gasification melting furnace 2 .

The burner 4 is a diesel burner, and the burner 4 is connected with a diesel storage tank 8 .

The air arc plasma torch 3 is connected with a chiller 11 and a deionized water tank 14. The chiller 11 provides cooling water for the air arc plasma torch; the deionized water tank 14 stores deionized cooling water for the air arc plasma torch; the chiller 11 It is arranged on the side of the material extraction module; the deionized water tank 14 is arranged on the side of the quenching deacidification tower 7 .

The air arc plasma torch 3 and the secondary combustion chamber section 6 are both connected with an air compressor 12 , and a surge tank 13 is arranged on the outlet of the air compressor 12 ;

The quenching deacidification tower 7 is connected with a lye storage tank 15; the hydroxyl generator 10 is connected with an induced draft fan 16, and the induced draft fan 16 is connected with a chimney 17; the lye liquid storage tank 15 is arranged on the deionized water tank 14; 9 sides.

The shells of the detection cabin, the isolation cabin and the disposal cabin are all cuboid-shaped container-type sealed shells.

Pressure regulating devices, air purification devices, ventilation and disinfection devices and network access devices are arranged on the tops of the detection cabin and the isolation cabin.

The main workflow is as follows:

1) Connect external power supply cables, water supply pipes, and drainage pipes, and perform necessary testing; the infectious waste generated in the testing chamber is transported to the feeder in the disposal chamber, and the suspected infected persons detected in the testing chamber enter the isolation chamber;

2) Turn on the air compressor and induced draft fan to provide system aerodynamic and negative pressure environment;

3) Raise the temperature in the plasma gasifier to 800°C with a diesel burner;

4) Open the air arc plasma torch, raise the temperature in the plasma gasification melting furnace to above 1200°C, and complete the preparatory work before processing;

5) The feeder lifts and delivers the infectious waste into the feeding port of the plasma gasification melting furnace;

6) The infectious waste is reacted in the lower part of the plasma gasification melting furnace: ① the infectious source is rapidly inactivated; ② the organic matter is gasified and decomposed into CO, H ₂ , CH ₄ and other small molecular gases, which are moved upward under the action of the induced draft fan ③ A small amount of inorganic matter is melted at the bottom of the gasification melting furnace, and discharged from the plasma gasification melting furnace from the slag discharge port;

7) The inorganic molten slurry is discharged out of the furnace from the slag discharge port and then enters the slag fishing device for water quenching and recovery;

8) Small molecular gases such as CO, H ₂ , CH ₄ enter the upper part of the plasma gasification melting furnace and the second combustion chamber, and mix and burn with the air sent by the air compressor to form mainly water vapor and CO ₂ The flue gas of about 1000 ℃;

9) The flue gas enters the quenching deacidification tower, and the lye solution is sprayed by the nozzle to achieve two parts: ① Rapidly reduce the flue gas from 1000°C to 200°C, avoiding the dioxin compound range; ② The lye solution and a small amount of acid gas reaction to remove it;

10) The flue gas after quenching and deacidification enters the bag filter to remove the dust mixed therein;

11) The flue gas after dust removal enters the hydroxyl generator to remove residual organic matter and nitrogen oxides with a small amount of odor;

12) The final clean exhaust gas is sent to the chimney through the induced draft fan and discharged.

Claims (10)

1. a community case screening system based on the harmless disposal of infectious wastes, is characterized in that, comprises detection cabin, isolation cabin and disposal cabin; Detection cabin, isolation cabin and disposal cabin are used in combination; one side of detection cabin is set There are several detection areas, and the side wall where each detection area is located is provided with an exit door. The rest of the inspection cabin is a work area, and the work area is provided with a separate entrance and exit; there are several isolation areas on one side of the isolation cabin, and adjacent isolation areas are provided. A purification zone is set between the zones, the rest of the isolation cabin is a passage, and an entrance and exit are arranged on one side of the passage; The disposal cabin includes a shell, a material extraction module, a gasification and melting module, a post-processing module and a control module; the shell is divided into an equipment area and a control area, and the material extraction module, gasification and melting module and post-processing module are all set in the equipment area. The material extraction module, the gasification melting module and the post-processing module are connected in sequence, and the control module is arranged in the control area; The gasification and melting module includes a plasma gasification and melting furnace (2), an air arc plasma torch (3), a burner (4) and a secondary combustion chamber section (6); the air arc plasma torch (3) is arranged in the plasma On the gasification melting furnace (2), the burner (4) is connected to the plasma gasification melting furnace (2), and the upper part of the plasma gasification melting furnace (2) is connected with one end of the second combustion chamber section (6), the second combustion chamber The other end of the section (6) is connected to the post-processing module; the top of the plasma gasification melting furnace (2) is provided with a feed port, and the feed port is connected to the material extraction module; The post-processing module includes a quenching deacidification tower (7), a bag filter (9) and a hydroxyl generator (10); the inlet of the quenching deacidification tower (7) is connected to the secondary combustion chamber section (6), and the quenching deacidification tower (7) ) outlet is connected to the bag filter (9), and the bag filter (9) is connected to the hydroxyl generator (10). 2. A community case screening system based on harmless disposal of infectious waste according to claim 1, wherein the control module comprises a power distribution cabinet (20), a control cabinet (21), a plasma torch power supply (22) and the console (23); the plasma torch power supply (22) is connected to the power distribution cabinet (20) and the control cabinet (21), and the control cabinet (21) is connected to the plasma torch power supply (22), the material extraction module, the gas The melting and melting module and the post-processing module are connected, and the console (23) is connected to the control cabinet (21). 3. A community case screening system based on the harmless disposal of infectious wastes according to claim 1, wherein the material extraction module is a material extraction machine (1), and a plasma gasification melting furnace (2) The bottom is provided with a slag fishing device (5). 4. A community case screening system based on the harmless disposal of infectious waste according to claim 1, wherein the burner (4) is a diesel burner, and the burner (4) is connected with a diesel storage tank (8), the diesel storage tank (8) is arranged on the inner bottom plate of the shell between the quenching deacidification tower (7) and the bag filter (9). 5. A community case screening system based on the harmless disposal of infectious waste according to claim 1, wherein the air arc plasma torch (3) is connected with a chiller (11) and a deionized water tank ( 14), the chiller (11) provides circulating cooling for the cooling water of the air arc plasma torch; the deionized water tank (14) stores the deionized cooling water for the air arc plasma torch; the chiller (11) is arranged in the material extraction module Side; the deionized water tank (14) is arranged on the side of the quenching deacidification tower (7). 6. A community case screening system based on the harmless disposal of infectious waste according to claim 1, wherein the air arc plasma torch (3) and the secondary combustion chamber section (6) are both connected to air compression The air compressor (12) is provided with a surge tank (13) on the outlet of the air compressor (12); the air compressor (12) is arranged on the side of the plasma gasification melting furnace (2). 7. A community case screening system based on the harmless disposal of infectious waste according to claim 1, wherein the quenching deacidification tower (7) is connected with a lye storage tank (15); a hydroxyl generator (10) an induced draft fan (16) is connected, and the induced draft fan (16) is connected to the chimney (17); the lye storage tank (15) is arranged on the deionized water tank (14); the chimney (17) is arranged on the bag filter (9) )side. 8. A community case screening system based on the harmless disposal of infectious waste according to claim 1, wherein the housings of the detection cabin, the isolation cabin and the disposal cabin are all cuboid container-type sealed casings . 9. A community case screening system based on the harmless disposal of infectious waste according to claim 1, characterized in that, the tops of the detection cabin and the isolation cabin are provided with pressure regulating devices, air purification devices, ventilation and Disinfection unit and network access unit. 10. A community case screening system based on the harmless disposal of infectious waste, characterized in that, based on the community case screening based on the harmless disposal of infectious waste according to any one of claims 1 to 9 The method of using the system includes the following steps: 1) Connect external power supply cables, water supply pipes, and drainage pipes, and perform necessary testing; the infectious waste generated in the testing chamber is transported to the feeder in the disposal chamber, and the suspected infected persons detected in the testing chamber enter the isolation chamber; 2) Turn on the air compressor and induced draft fan to provide system aerodynamic and negative pressure environment; 3) Raise the temperature in the plasma gasifier to 800°C with a diesel burner; 4) Open the air arc plasma torch, raise the temperature in the plasma gasification melting furnace to above 1200°C, and complete the preparatory work before processing; 5) The feeder lifts and delivers the infectious waste into the feeding port of the plasma gasification melting furnace; 6) The infectious waste is reacted in the lower part of the plasma gasification melting furnace: ① the infectious source is rapidly inactivated; ② the organic matter is gasified and decomposed into CO, H ₂ , CH ₄ and other small molecular gases, which are moved upward under the action of the induced draft fan ③ A small amount of inorganic matter is melted at the bottom of the gasification melting furnace, and discharged from the plasma gasification melting furnace from the slag discharge port; 7) The inorganic molten slurry is discharged out of the furnace from the slag discharge port and then enters the slag fishing device for water quenching and recovery; 8) Small molecular gases such as CO, H ₂ , CH ₄ enter the upper part of the plasma gasification melting furnace and the second combustion chamber, and mix and burn with the air sent by the air compressor to form mainly water vapor and CO ₂ The flue gas of about 1000 ℃; 9) The flue gas enters the quenching deacidification tower, and the lye solution is sprayed by the nozzle to achieve two parts: ① Rapidly reduce the flue gas from 1000°C to 200°C, avoiding the dioxin compound range; ② The lye solution and a small amount of acid gas reaction to remove it; 10) The flue gas after quenching and deacidification enters the bag filter to remove the dust mixed therein; 11) The flue gas after dust removal enters the hydroxyl generator to remove residual organic matter and nitrogen oxides with a small amount of odor; 12) The final clean exhaust gas is sent to the chimney through the induced draft fan and discharged.

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