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2.Microwave disinfection treatment system is an integrated equipment, the equipment at least by automatic feeding unit, airtight bin unit, multi-function airtight crushing unit, negative pressure pumping unit, microwave disinfection sterilization bin unit, microwave generator unit, steam heating system, discharging unit, automatic control unit, waste gas treatment unit 10 units and alarm system.
3.Microwave sterilization is the result of the joint action of microwave thermal effect and biological effect,so that microwave can directly interact with bacteria,fast sterilization.
1.)The thermal effect of microwave energy:under the action of a certain intensity of microwave field,bacteria will absorb microwave energy due to the polarization of molecules,thus making Protein and Physiologically active substance deforms and loses its biological activity.The thermal effect of microwave mainly plays the role of rapid warming and sterilization.
2.)Non-thermal effect of microwave energy:the high frequency electric field changes the structure of polarized molecules,leading to protein and physiological active substances in the microbial body mutation and loss of vitality or death,in the sterilization of conventional physical sterilization has no special role.
| No. | System unit | Item | Technical Parameters | ||
| Specification | ZT-MWT-3000 | ZT-MWT-5000 | ZT-MWT-10000 | ||
| 1 | Feed system | Garbage can | 660L | 660L | 660L |
| Material | Stainless Steel | Stainless Steel | Stainless Steel | ||
| 2 | Stock bin | Volume | 1m³ | 1.2m³ | 1.2m³ |
| Material | 4mm Stainless Steel | 4mm Stainless Steel | 4mm Stainless Steel | ||
| 3 | Crushing system | Power | 22kw | 30kw | 30kw |
| Blade | Φ345*30 D550 Imported material | Φ345*30 D550 Imported material | Φ345*30 D550 Imported material | ||
| Crushing chamber size | 647mm*665mm | 647mm*665mm | 647mm*665mm | ||
| 4 | Sterilizing bin | Main shaft power | 2.2kw | 3kw | 3kw |
| Bin size | Φ530-5000, thickness 8mm, 304 material | Φ530-6000, thickness 8mm, 304 material | Φ530-8500, thickness 8mm, 304 material | ||
| Microwave generator | 1.5kw*8 set | 1.5kw*10 set | 1.5kw*20 set | ||
| 5 | Discharge screw | Power | 3kw | 3kw | 3kw |
| 6 | Complete steam/cooling system | Steam generator | 54kw Steam production: 75kg/h | 72kw Steam production: 100kg/h | 108kw Steam production: 150kg/h |
| Water tank | 0.8m³/304 material | 1m³/304 material | 1.2m³/304 material | ||
| Water softener | / | / | |||
| Water Cooler | / | / | |||
| Draught fan | Centrifugal fan | Centrifugal fan | Centrifugal fan | ||
| 7 | Main dimension L*W*H (excluding hoist and discharge screw) | 7000*2900*2650 | 8000*2900*2650 | 10500*290*2650 | |
| 8 | Total power | 97kw | 130kw | 176kw | |
| 9 | Total Weight | 11000kg | 13000kg | 15000kg | |
| 10 | Processing capacity (t/h) | 3 | 5 | 10 | |
Microwave disinfection process description
The technological process of microwave disinfection of medical waste is as follows:
1.The medical waste in the medical waste turnover box is transported to the medical waste disposal center by the medical waste transfer truck, and then discharged to the standard garbage can in the medical waste feeding area;
2.The automatic feeding module automatically sends the medical waste in the standard garbage can into the closed bin; The automatic feeding module and the closed cover of the closed bin are controlled by linkage, and the medical waste automatically enters the multi-function closed crushing module through the closed bin.
3.The multi-function crushing module and the closed bin internal negative pressure suction to prevent the overflow of harmful substances.The multifunctional crushing module breaks and reduces the internal medical waste into small pieces of medical waste (about 5cm in size). Small pieces of medical waste automatically enter the spiral microwave disinfection and sterilization bin through the screen; There is a homogenizing module in the spiral microwave disinfection and sterilization chamber.
3.Small pieces of medical waste are fully stirred and mixed in the spiral microwave disinfection and sterilization chamber. A microwave disinfection treatment unit is set up in the spiral microwave disinfection and sterilization silo to generate electromagnetic waves with corresponding frequency and wavelength.
4.A steam heating system is set next to the microwave disinfection and sterilization bin, and the high-temperature pressure steam is sent into the microwave disinfection and sterilization bin through the steam pipeline. Under the interaction of high temperature pressure steam and electromagnetic wave of corresponding frequency wavelength, the disinfection and sterilization of medical waste can be completed.
5.The spiral means that the temperature in the microwave disinfection and sterilization chamber is ≥95ºC, and the disinfection time of medical waste is ≥45 minutes. The medical waste is transported by screw in the spiral microwave disinfection and sterilization chamber, so that the medical waste is rotated and stirred at the same time, so that the medical waste is evenly heated and sterilized, and the most ideal sterilization effect is achieved.
6.The medical waste residue after sterilization is discharged through the automatic discharge screw system.
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| 1.Mature and stable process, low energy consumption, less pollution | The equipment adopts automatic weighing feeding unit + crushing unit + microwave steam disinfection unit process combination design; Taking 800kg/h treatment equipment as an example, the average power consumption per treatment is about 80kw, which is much lower than other treatment processes. The emission is a small amount of waste gas, which is collected and treated centrally to meet the standards. |
| 2.Good treatment effect | The crushing unit adopts the serrated blade special for medical waste, and the crushing effect is good. The microwave disinfection treatment unit used microwave 2450±50MHZ, the disinfection temperature was controlled at 95ºC, and the treatment time was 45min. The killing log value of Bacillus subtilis var. Niger spore (ATCC9327) was more than 4.00. |
| 3.High degree of mechanization and automation | The equipment adopts PLC centralized control, one key operation; The operating parameters of the equipment are displayed in real time by the operation screen. That is, after the commissioning of the equipment is completed, only the medical waste turnover box is hung on the automatic lifting part of the equipment or the medical waste is dumped into the lifting bucket by the manual or front-end equipment. Such functions as lifting, crushing and reducing, high-temperature microwave disinfection and sterilization, automatic turning and mixing, and automatic discharge of medical waste can be realized to realize the intelligent operation of the equipment. |
| 4.Equipment integrated layout, flexible and convenient installation, wide range of application | This series of products will be automatic lifting, automatic crushing, crushing chamber sealing automatic switch, microwave disinfection and sterilization chamber, steam generator and interface and other functional components combination design, the overall integration of equipment design and manufacturing, easy installation, flexible use, to meet the needs of various medical waste treatment sites for process equipment. |
Description of Microwave Disinfection System
| 1.Microwave Disinfection Unit | The microwave disinfection unit disinfects the waste in continuous operation. Heating is carried out by the dual action of steam injection and microwave radiation. |
| 2.Steam Supply Unit | Prior to the first microwave, steam was injected into the microwave disinfection unit by four steam nozzles at a predetermined distance from the transfer hopper. Steam is used to maintain the temperature of the waste and to provide an appropriate environment for microwave energy for disinfection. |
| 3.Steam Generator | The PLC controls the steam generator and monitors its operating status. After automatic start-up, the steam generator began to heat up. When the steam temperature reaches 150 ° C, the system is put into operation, and if the steam temperature drops below 150 ° C and does not recover after a certain period of time, the system goes into "waiting mode". To allow time for the steam generator to recover (the steam generator is still working). The PLC waits for the steam temperature to reach 150 ° C before returning the system to automatic operation. This ensures that the steam generator can provide enough steam. |
| 4.Temperature Control | Several microwave generators are installed side by side in the microwave disinfection unit along the pipeline. A temperature sensor located between the first and second microwave generators monitors the front-end waste temperature. A temperature sensor, located between the last and the previous microwave generator, monitors the waste temperature at the back end of the microwave disinfection unit, and a temperature detection point is also located between the fourth and fifth microwave generators. If the temperature of these three points cannot reach the set value for a long time, the microwave disinfection unit will enter the fault alarm state. The screw speed was determined by the temperature sensor at the rear end. If the material temperature falls below 95°C, the screw will stop operating. If the material temperature is 95°C or above, the screw will run at 100% full speed. Once the temperature is below the set value for more than five minutes, the unit enters the fault alarm. |
| 5.Microwave Generator | The microwave generator generates the microwave energy required for waste disinfection. The microwave generator components are integrated in a stainless steel housing and are bolted to the waveguide. The control line and power line are installed with plug-in connectors, which can be easily plugged in. The microwave generator provides 1500 watts of output power at a frequency of 2450 MHZ. A built-in timer indicates the total running time for the microwave generator to preheat the filament. Most of the equipment is equipped with water-cooled magnetrons, and each is air-cooled magnetrons (air-cooled magnetrons are cooled by radial air cooling located inside the shell of each microwave generator. Therefore, it is important to keep the air inlet and outlet vents clean to ensure sufficient circulating air for cooling. Keeping the MWT door closed will help PREVENT dirt and dust from contaminating the microwave generator air vents. |
| 6.Temperature Holding Hopper | The hopper package has a thermal insulation layer to prevent internal cooling, and the flange is installed to the outlet end of the microwave disinfection unit. When the treated waste leaves the microwave disinfection unit, it falls into the hopper in the temperature holding section. The waste was kept in this section for about 10 minutes or so and the disinfection process continued. |
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About us:
ZHITE Environmental Protection Technology Co., Ltd.is a comprehensive domestic enterprise with integrating scientific research and development,engineering design,production and installation and commissioning services.The main products are medical waste treatment equipment,diseased livestock and poultry harmless treatment equipment,household waste treatment equipment,kitchen waste treatment equipment,tail vegetable treatment equipment,sludge treatment equipment and all kinds of shredding equipment and other solid waste treatment products. Also can design and customize all kinds of efficient and practical equipment and production lines according to customer needs.
Quality in mind, quantity in hand!High aspiration,long-term quality!We remain true to our original aspiration and forge ahead!Better Quality!--Our pursuit forever!
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