CN2440163Y

CN2440163Y - Hospital Clinical waste-material incinerator

Info

Publication number: CN2440163Y
Application number: CN 00254223
Authority: CN
Inventors: 宋建峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-19
Filing date: 2000-09-19
Publication date: 2001-07-25
Anticipated expiration: 2010-09-19

Abstract

The utility model relates to a hospital clinical waste-material incinerator, which is composed of a chain grate, a charger, a material laying hopper, an incinerator body, a laying and recovering device and combustion engines. The bottom of the incinerator body is provided with the chain grate, and both sides of the incinerator body above the chain grate are provided with the combustion engines. The front side of the incinerator body is provided with the charger and the material laying hopper, and the rear side of the chain grate is provided with a separating screen and the laying and recovering device. The utility model can realize safe operation, small contamination surface, easy disinfection, no waste gas leakage, homogeneous material distribution, continuous hot state operation and eligible discharge standard by mechanical feed and mechanical ash removal.

Description

The hospital clinical waste incinerator

The utility model relates to a kind of hospital clinical waste incinerator, main usefulness for the clinical refuse that burns hospital.

By the relevant rule and standard regulation of country, the hospital clinical refuse belongs to hazardous waste, and its incinerator must reach temperature in the stove 〉=850 ℃, gas residence time 〉=1, efficiency of combustion 〉=99.9%, hot burn decrement rate＜5% of incineration residue.

The hospital clinical refuse refers to the refuse that produces etc. in operative treatment, test, chemical examination and hospital wastewater are handled, belong to hazardous waste, can not sneak into house refuse, must be separately high temperature incineration separately.

Prior art has two kinds on rotary kiln formula and fire bars formula fixed bed, and their common shortcomings are:

1) needs manually in stove, to feed intake and scarfing cinder.The workman has to operate in the environment of high temperature and harmful smoke, and the operator also has the possibility of being stabbed by syringe needle, cutter etc.;

2) run duration is opened fire door at every turn, all can make a large amount of cold airs enter burner hearth, causes the interior temperature of stove to descend rapidly, and normal combustion is affected;

3) the raw material clearance-type becomes bag to drop into burner hearth, enters the high-temperature region suddenly, causes partial combustion unusual, and corresponding burning is regulated and can't in time be caught up with, and very easily produces black smoke;

4) the secondary wind used of afterburning, tertiary air distribute and jet velocity all is short of and thinks better of and design from position, angle, the air quantity that adds, even just do not have at all, the a large amount of combustible gases that cause decompositing can not get good combustion timely, separate out carbon black, combustible severe overweight in oke exhaust blackness and the cigarette ash, the hot burn decrement rate of cigarette ash generally reaches more than 80%, substantially exceeds in country's " dangerous waste incineration pollution control criterion " setting less than 5%.

5) for fire bars formula fixed bed, after packaging bag broke, some particles and sewage were promptly fallen into ashcan from the fire grate slit without high temperature, and lime-ash is polluted again; For rotary kiln, still unresolved at present mechanical continuous charging problem, therefore, the kiln body can not rotate before being finished substantially by the destructive distillation of combustion thing, otherwise mixed strongly with high-temperature flue gas by a large amount of plastics, rubber, stationeries in the combustion thing, and under the intense radiation of furnace high-temperature, moment decomposites a large amount of combustible gases, and very difficult control is over-emitting black exhaust not.Simultaneously, because the rotation of kiln body, except that metal object and glass, nearly all ash all leaves burner hearth with flue gas and enters the rear portion flue, has increased the improvement burden of dedusting.

6) fire bars formula fixed bed is difficult to accomplish evenly feed in raw material on the grate, and local accumulation and the empty phenomenon of burning can't be avoided.

The novel purpose of this reality is to overcome above-mentioned weak point of the prior art and provides a kind of handling safety, no waste gas to leak and the hospital clinical waste incinerator of emission compliance.

The novel purpose of this reality can reach by following measure: the utility model is made up of traveling-grate stoker, charger, body of heater, stone retracting device and combustor, bottom of furnace body has traveling-grate stoker, there is combustor the body of heater both sides of traveling-grate stoker top, charger and stone bucket are arranged before the body of heater, separating sieve and stone retracting device are arranged behind the traveling-grate stoker.

Before loading hopper, be provided with the stone bucket.

The stone retracting device comprises separating sieve, elevator and pipeline, and separating sieve has levels, and between levels and elevator bottom is communicated with, and elevator top and pipeline upper end are communicated with, and lower end of duct and stone bucket are communicated with.

Body of heater both sides interlaced arrangement has combustor.

Body of heater adopts refractory material to build the cell-type structure that becomes to have face arch and rear arch by laying bricks or stones.

The material roller of taking off that a pair of reinforced usefulness is arranged in the loading hopper.

Bottom of furnace body one side is equipped with airduct one time, and each air compartment under airduct and the fire grate is communicated with.

The drawing of accompanying drawing is described as follows:

Fig. 1 is total figure of the present utility model.

Fig. 2 is that the A of Fig. 1 is to view.

1, traveling-grate stoker 2, stone bucket 3, charger

4, loading hopper 5, body of heater 6, exhanst gas outlet

7, face arch 8, rear arch 9, secondary air channel

10, stone retracting device 11, grey pit 12, separating sieve

13, combustor 14, airduct 15, driving wheel

16, chain 17, air inlet 18, elevator

19, pipeline

The utility model is described in further detail below in conjunction with embodiment and accompanying drawing:

Fig. 1 and Fig. 2 represent structure of the present utility model, mainly are made up of traveling-grate stoker 1, charger 3, stone bucket 2, body of heater 5, stone retracting device 10 and combustor 13.Body of heater adopts refractory material to build into the cell-type structure of band face arch 7 and rear arch 8 by laying bricks or stones, and furnace roof has exhanst gas outlet.Bottom of furnace body has the traveling-grate stoker that is driven by transmission mechanism (containing motor and reduction box etc.), and the driving wheel 15 of reduction gearbox output shaft chain drive-belt fire grate rotates, to drive chain 16 to overtake.Bottom of furnace body one side is equipped with 14, wind of an airduct and enters in the body of heater with combustion-supporting from air inlet 17.Body of heater both sides interlaced arrangement above traveling-grate stoker has combustor 13, can form vortex combustion in the primary zone.The body of heater front end has charger 3; mainly constitute by a pair of material roller of taking off; packed clinical refuse enters in the loading hopper 4; relatively rotating take off material roller make its fall into the below traveling-grate stoker on and with fire grate to overtake; impaired in order not make traveling-grate stoker burn paramount gentleness; the utility model is lined with the stone (as haydite or slag) of one deck heatproof on the fire grate upper berth by stone bucket 2; along with fire grate constantly to overtake; stone bucket place mat one deck stone is on fire grate; because the stone bucket is arranged on the front portion of loading hopper; behind the good pre-coated layer of first place mat, clinical waste material just falls on stone on the fire grate.During use, clinical waste material is finished preheating, destructive distillation, burning and after-flame overall process in body of heater, and realizes preventing the generation and the discharging of black smoke, to reach combustible completing combustion and purpose of energy saving.

For the reuse stone, the utility model is equiped with the stone retracting device, comprises separating sieve 12, elevator 18 and pipeline 19.Separating sieve has two-layer, and above the residual upper strata is big residue of size such as bottle etc., is discarded object.Between the upper and lower is stone, and the bottom and enter elevator bottom of flowing through is promoted to behind the top flow ipe and is returned the stone bucket with reuse by elevator.The lower floor below is the soot particle the like waste, together with the discarded object on the upper strata, regularly discharges.

The utility model contrast prior art has following advantage:

1, realizes outside handling safety, little, the easy sterilization of the face of being infected with, the no waste gas by mechanical material loading and mechanical ashing Let out, cloth evenly, can hot continuous operation and emission compliance.

2, the obstruct protection of stone is arranged, and thermal-flame can directly not contact fire grate, makes and adopts mechanical metal bracelet Fire grate becomes possibility.

3, chain fire-gate use and equally distributed stone make fire grate to the proportionality action of bed of material flowing resistance Lower even air feed becomes possibility.

4, the obstruct of stone can be avoided not firing or unburnt fines and sewage drop under the fire grate.

5, cooperate chain fire-gate use, can realize machinery, continuous, airtight, evenly reinforced.

6, chain fire-gate use can realize mechanical scarfing cinder.

7, after the ash bucket place carried out airtight mechanical grading to the slag that falls, stone is recyclable to be recycled.

8, the combined running of complete set of equipments can be determined by design fully, and artificial only the need dropped into loading hopper with one-tenth bag material, do not have and can produce the manually-operated of disturbing to normal combustion.Avoided human factor the causes secondary pollution of management, operation.

9, vertical furnace chamber is separated into up and down multilayer by arch, cooperates wind and secondary wind down the combustion-supporting of combustor, realizes good burning.

Claims

1, a kind of hospital clinical waste incinerator, its feature in: form by traveling-grate stoker, charger, stone bucket, body of heater, stone retracting device and combustor, bottom of furnace body has traveling-grate stoker, there is combustor the body of heater both sides of traveling-grate stoker top, charger and stone bucket are arranged before the body of heater, separating sieve and stone retracting device are arranged behind the traveling-grate stoker.

2, hospital clinical waste incinerator according to claim 1 is characterized in that, is provided with the stone bucket before loading hopper.

3, according to claims 1 described hospital clinical waste incinerator, it is characterized in that the stone retracting device comprises separating sieve, elevator and pipeline, separating sieve has levels, between levels and elevator bottom is communicated with, and elevator top and pipeline upper end are communicated with, and lower end of duct and stone bucket are communicated with.

4, according to claims 1 described hospital clinical waste incinerator, it is characterized in that the material roller of taking off of a pair of reinforced usefulness is arranged in the loading hopper.

5, according to claims 1 described hospital clinical waste incinerator, it is characterized in that body of heater both sides interlaced arrangement has combustor.

According to claims 1 described hospital clinical waste incinerator, it is characterized in that 6, body of heater adopts refractory material to build the cell-type structure that becomes to have face arch and rear arch by laying bricks or stones.

7, according to claims 1 described hospital clinical waste incinerator, it is characterized in that bottom of furnace body one side is equipped with airduct one time, each air compartment under airduct and the fire grate is communicated with.