CN207973704U - A kind of clinical waste resource utilization system - Google Patents

Abstract

The utility model is related to a kind of clinical waste resource utilization systems comprising feeding warehouse, feeding screw, molten salt reaction device, spray column, bag filter and dehydrater connected in sequence；Described melt is equipped with star-shaped feeder above salt reactor and star-shaped feeder feed opening stretches into molten salt reaction device, the molten salt reaction device outer wall is equipped with electric heater unit, the slag-drip opening of molten salt reaction device bottom has water tank by piping connection, and the pipeline between molten salt reaction device and water tank is equipped with electrically-controlled valve.The apparatus structure is simple, it can be with the sulfur-bearing, nitrogen, cl contaminant of simultaneous removing output, without another tailing gas pollutant purification device, it is prepared into hydrogen-rich combustible gas on the basis of effectively realizing that clinical waste is innoxious, realize the harmless treatment of recycling and clinical waste, reduce the possibility for causing environmental pollution to be endangered with human body, great application value.

Description

A kind of clinical waste resource utilization system

Technical field

The utility model belongs to that waste is innoxious, resource technology field, and in particular to one kind being based on alkali molten salt Clinical waste resource utilization system, by clinical waste harmless treatment and hydrogen-rich combustible gas can be converted into.

Background technology

Medical and health organization can directly or indirectly generate during the curative activities such as being prevented, being diagnosed, treated, conserved All kinds of bazardous wastes with human infectious, environmental contamination or bio-toxicity.The main constituents of clinical waste For PVC, rubber, bamboo and woods fiber, absorbent cotton, glass, metal etc., wherein PVC, rubber, bamboo and woods fiber, absorbent cotton are organic Object accounts for the 81 ~ 98% of clinical waste total content.

It was promulgated in 2012 in China《" 12th Five-Year Plan " Hazardous Wastes Management control program》, wherein regulation is forbidden directly to abandon Clinical waste, clinical waste must be turned to most basic principle and suitably be handled with minimizing, innoxious and resource.Currently, The clinical waste method for innocent treatment of mainstream includes sterilizing class method and burning class method.Sterilizing class method include mainly：It is high The technologies such as warm steam sterilization, microwave sterilization method, chemical sterilization.Such sterilization principle is to utilize physically or chemically means The eucaryotic cell structure of pathogenic bacteria and then kill pathogenic bacteria to destroy, the sterilizing of such method is thorough, and caused by smoke pollution relatively It is small.But the presence of such method can not thoroughly reduce the quality of clinical waste, innoxious the shortcomings of Mass lost is few afterwards. In addition, such method is difficult to that clinical waste cannot be converted to useable products.It is most widely used so far to burn class method A kind of Medical Waste Treatment Methods, burning can effectively kill pathogen, while more thoroughly reduce clinical waste body Product and quality.Have grate furnace, rotary kiln and fluid bed etc. using more incinerator, the heat of generation can be used for generating electricity or The fields such as heating.But there is more serious disposal of pollutants in burning method.Due to containing higher chlorine member in clinical waste Element and nitrogen, typically contain in incineration flue gas higher concentration containing chlorine, nitrogen-containing pollutant, unfavorable shadow is caused to environment It rings.Currently, incineration flue gas could must be removed by a variety of purifiers containing chlorine, nitrogen-containing pollutant again, technological process is more multiple It is miscellaneous, and removal effect is poor.It would therefore be highly desirable to study new clinical waste resource utilization system.

Utility model content

The utility model aim is to overcome prior art defect, provides a kind of Novel medical waste money based on fuse salt Sourceization utilizes system, and the system structure is simple, and being prepared into hydrogen-rich on the basis of effectively realizing that clinical waste is innoxious can Recycling is realized in combustion gas.

To achieve the above object, the utility model adopts the following technical solution：

A kind of clinical waste resource utilization system comprising feeding warehouse connected in sequence, feeding screw, fuse salt are anti- Answer device, spray column, bag filter and dehydrater；Described melt is equipped with above salt reactor under star-shaped feeder and star-shaped feeder Material mouth stretches into molten salt reaction device, and the molten salt reaction device outer wall is equipped with electric heater unit, molten salt reaction device bottom The slag-drip opening in portion has water tank by piping connection, and the pipeline between molten salt reaction device and water tank is equipped with electrically-controlled valve（It can root According to fuse salt state, opens or closes electrically-controlled valve and dropped in order to which the residue after in time reacting clinical waste is expelled in water tank Temperature）.

Further, it is arranged with heating mantle outside the feeding screw, passes through main outlet at the top of the molten salt reaction device Mouthful be connected with spray column lower part, be additionally provided with time gas outlet at the top of molten salt reaction device, the secondary gas outlet by the first pipeline and The import of heating mantle is connected on feeding screw, on feeding screw the outlet of heating mantle pass through the second pipeline and main gas outlet It is connected.In this case, a gas part for output is introduced into heating mantle through time gas outlet in molten salt reaction device, to spiral into Glassware carries out heat exchange, and to heat and dry the clinical waste in feeding screw, the gas after heating passes through the second pipe again Road is recycled to main gas outlet and enters spray column, to realize making full use of for heat.

It is further preferred that motor is equipped with above the feeding warehouse, and the output end of motor stretches into feeding warehouse, motor Output end excircle is equipped with several axially aligned rotation pendulums.When clinical waste is glass, using rotation pendulum Material is crushed.

Specifically, the dehydrater has flowmeter by piping connection, to be monitored to gas flow.

It is equipped with star-shaped feeder above molten salt reaction device, salt, alkali are added into molten salt reaction device to not timing Class is to ensure fuse salt amount；The slag-drip opening of bottom connects water tank, in order to which the clinical waste residue that is generated after combustion reaction can be with Smoothly discharge.Clinical waste is delivered to molten salt reaction device through feeding screw, in molten salt reaction device together with salt, bases It inside reacts, organic matter, which is decomposed, to be transformed into height based on hydrogen and contain wet combustible gas, enters spray by main gas outlet After chilling cooling prevents the secondary generation of dioxin in tower, while the fuse salt carried is washed out, residual moisture content it is higher but compared with Enter bag filter and dehydrater for clean combustible gas, be discharged after dedusting removes water, storage uses；Remaining metal, glass Glass class is sterilized by high temperature and highly basic, is then drained into water tank by slag-drip opening.

In the utility model, the structure of molten salt reaction device is not the place for being the utility model innovation, uses ability Domain conventional structure（Such as, Zhejiang University, the Zhang Weiwang Master's thesis delivered on March 1st, 2017 be can refer to《Molten salt reaction Device flow dynamic characteristic experimental study》；Or Feng Yipeng be equal to 2 months 2016《New energy is in progress》On the article delivered it is " molten It is quenched to high nitrogenous waste entrained flow gasification aerogenesis with the research of pollutant removing characteristic to melt salt "）, so repeating no more.Heating Set main function is by the heat reuse of the high-temperature fuel gas flowed out from time gas outlet using heating mantle in heating coil feeder Clinical waste, structure use this field routine techniques, so repeating no more.

Fuse salt refers to the mixture of the alkali metal bases of molten state under high temperature, salt.Melting employed in the present invention The mixture that salt component is made of alkaloid compound and its esters compound of potassium, sodium, lithium.The fuse salt is specifically as follows NaOH+Na₂CO₃、KOH+K₂CO₃、NaOH+K₂CO₃、KOH+Na₂CO₃Or LiOH+Li₂CO₃, wherein potassium, sodium, lithium bases chemical combination Weight percentage of the object in fuse salt is not less than 40%.It was proved that：Organic matter in clinical waste is put into fuse salt In can occur gasification reaction, generate with H₂Based on combustible gas, and nitrogenous, cl contaminant in aerogenesis can be absorbed, to Realize the removing of the conversion and pollutant of gasification.

Compared to the prior art, the beneficial effects of the utility model：

Using star-shaped feeder, the not timing into molten salt reaction device adds salt, bases to ensure to melt to the utility model Salt amount reacts with from the clinical waste that feeding screw is sent into molten salt reaction device, and organic matter, which is decomposed, to be converted to Be that the height based on hydrogen contains wet combustible gas, into spray column in chilling cooling prevent the secondary generation of dioxin, carry simultaneously Fuse salt be washed out after, residual moisture content is higher but more clean combustible gas enters bag filter and dehydrater, through removing It is discharged after dirt water removal, storage uses；Remaining metal, category of glass are sterilized by high temperature and highly basic, are drained into water tank by slag-drip opening, To realize the recycling of clinical waste.Utility model device is simple in structure, can with the sulfur-bearing of simultaneous removing output, Nitrogen, cl contaminant are not necessarily to another tailing gas pollutant purification device, in the effectively realization innoxious on the basis of system of clinical waste It is standby to realize the harmless treatment of recycling and clinical waste at hydrogen-rich combustible gas, it reduces and environmental pollution is caused to endanger with human body Harmful possibility, great application value.

Description of the drawings

Fig. 1 is the structural schematic diagram of clinical waste resource utilization system described in the utility model；

Fig. 2 is the structural schematic diagram of feeding warehouse in Fig. 1.

Specific implementation mode

The utility model is described in further details below in conjunction with the accompanying drawings, but the scope of protection of the utility model is not limited to This.

Embodiment 1

As illustrated in fig. 1 and 2, a kind of novel clinical waste resource utilization system comprising feeding warehouse connected in sequence 1, feeding screw 3, molten salt reaction device 6, spray column 10, bag filter 11 and dehydrater 12, dehydrater 12 pass through pipeline It is connected with flowmeter 13；It is described to melt that the top of salt reactor 6 is equipped with star-shaped feeder 9 and 9 feed opening of star-shaped feeder stretches into melting In salt reactor 6,6 outer wall of molten salt reaction device is arranged with electric heater unit（Ceramic heat circle 7）, the molten salt reaction The slag-drip opening of 6 bottom of device has water tank 14 by piping connection, and the pipeline between molten salt reaction device 6 and water tank 14 is equipped with electricity Control valve 8.Heating mantle 5 is arranged with outside the feeding screw 3,6 top of the molten salt reaction device passes through main gas outlet 15 and spray 10 lower part of leaching tower is connected, and 6 top of molten salt reaction device is additionally provided with time gas outlet, which passes through the first pipeline 2 and spiral shell The import of heating mantle 5 is connected on precession glassware 3, on feeding screw 3 outlet of heating mantle 5 by the second pipeline 4 and it is main go out Gas port 15 is connected.A gas part for output is introduced into heating mantle 5 through time gas outlet in this way in molten salt reaction device 6, to spiral shell Precession glassware 3 carries out heat exchange, and to heat and dry the clinical waste in feeding screw 3, the gas after heating passes through again Second pipeline 4 is recycled to main gas outlet 15 and enters spray column 10, to realize making full use of for heat.

1 top of the feeding warehouse is equipped with motor 102, and the output end 104 of motor 102 stretches into feeding warehouse 1, motor 102 104 excircle of output end be equipped with several axially aligned rotation pendulums 103.It, can when clinical waste is glass material Material is crushed using rotation pendulum 103.

Harmless treatment and the resourcable transformation method of clinical waste are carried out using above system, specially：

First, salt and bases is added into molten salt reaction device 6 by star-shaped feeder 9（NaOH+Na₂CO₃, NaOH exists Content in mixture is 60wt%）, and molten salt reaction device 6 is heated to required temperature using ceramic heat circle 7 （600―900℃）；

Secondly, it is fed since the feed inlet 101 of feeding warehouse 1, the leakproofness substance such as clinical waste such as needle tubing is put in rotation Wall surface is broken under the action of hammer 103（So that fuse salt enters）, subsequently enter feeding screw 3 and be delivered to molten salt reaction In device 6.With the fuse salt in molten salt reaction device 6（It has been heated to the NaOH+Na in molten condition₂CO₃Mixture）Hair Raw reaction, wherein organic matter is decomposed reaction under the action of high-temperature fusion salt, and output is with H₂Based on combustible gas, part Combustible gas enters the secondary generation that chilling cooling in spray column 10 prevents dioxin, while the melting carried by main gas outlet 16 After salt is washed out（Part combustible gas is entered by secondary gas outlet in heating mantle 5, is carried out to the clinical waste in feeding screw 3 Heating, so that the moist part removing in clinical waste, while also achieving recycling for heat）, residual moisture content is higher But more clean combustible gas enters bag filter 11 and dehydrater 12, is discharged after dedusting removes water, and storage uses；It is remaining The hardly possible reactive material such as glass, metal eliminates toxicity by highly basic high temperature, and molten salt reaction device 6 is gradually deposited at since density is larger Bottom is drained by electrically-controlled valve 8 in water tank 14.The akaline liquid of 10 bottom of spray column can also drain into water tank by pipeline connection In 14.It is finally the residue and alkaline solution after being cleaned in water tank 14, the lye after separation may be used causticizing process and make again Standby is NaOH, and realization recycles.

Utility model device is simple in structure, be based on fuse salt principle, not only can with the sulfur-bearing of simultaneous removing output, nitrogen, Cl contaminant is not necessarily to another tailing gas pollutant purification device, and by it on the basis of effectively realizing that clinical waste is innoxious It is prepared into hydrogen-rich combustible gas, realizes that the harmless treatment of recycling and clinical waste, reduction cause environmental pollution and human body The possibility of harm, great application value.

It should be noted last that：The technical solution of the utility model that the above embodiments are only illustrative and not limiting is appointed What to the utility model carry out equivalent replacement and do not depart from the spirit and scope of the utility model modification or part replace, It should cover within the scope of the utility model claims are protected.

Claims (4)

1. a kind of clinical waste resource utilization system, which is characterized in that including feeding warehouse connected in sequence, feeding screw, Molten salt reaction device, spray column, bag filter and dehydrater；Described melt is equipped with star-shaped feeder and star above salt reactor Blanking device feed opening stretches into molten salt reaction device, and the molten salt reaction device outer wall is equipped with electric heater unit, the fuse salt The slag-drip opening of reactor bottom has water tank by piping connection, and the pipeline between molten salt reaction device and water tank is equipped with automatically controlled Valve.

2. clinical waste resource utilization system as described in claim 1, which is characterized in that be arranged outside the feeding screw There is heating mantle, be connected with spray column lower part by main gas outlet at the top of the molten salt reaction device, at the top of molten salt reaction device Be additionally provided with time gas outlet, which is connected by the first pipeline with the import of heating mantle on feeding screw, spiral into The outlet of heating mantle is connected by the second pipeline with main gas outlet on glassware.

3. clinical waste resource utilization system as claimed in claim 1 or 2, which is characterized in that set above the feeding warehouse There is motor, and the output end of motor stretches into feeding warehouse, the output end excircle of motor is equipped with several axially aligned rotations Switch is hammered into shape.

4. clinical waste resource utilization system as claimed in claim 3, which is characterized in that the dehydrater is connected by pipeline It is connected to flowmeter.