CN207335423U - The DC power supply of plasma smelting furnace - Google Patents

Abstract

A kind of DC power supply of plasma smelting furnace, the plasma smelting furnace includes at least the first plasma electrode component and the second plasma electrode component, the DC power supply is used to provide direct current energy to the electrode in the electrode in the first plasma electrode component and the second plasma electrode component, it is characterized in that, DC power supply includes power-supply controller of electric, transformer and N number of DC voltage unit by switching series connection, in plasma melting furnace igniting, electric switch in N number of DC voltage unit is both turned on to provide electric energy to the electrode in the electrode in the first plasma electrode component and the second plasma electrode component, after the success of plasma melting furnace igniting, the state of the switch of each DC voltage unit of power controller controls such as controls at the temperature in the container of in vitro smelting furnace.DC power supply provided by the utility model provides different output voltage values according to the working status of plasma smelting furnace, makes plasma furnace work easy in starting up, and expand working range.

Description

The DC power supply of plasma smelting furnace

Technical field

The DC power supply of plasma smelting furnace is the utility model is related to, more specifically, being related to dangerous and non-hazardous material Controllable heat damage.

Background technology

In the past, it is that waste material is placed in landfill yard by waste disposal method.When the consequence of landfill disposal is a bit harmful poisonous Material is slowly discharged into empty gas and water and soil, therefore, causes the pollution of environment, to solve the problems, such as this, in the prior art Using using incineration process, but incineration process is limited, and e.g., some waste materials are uneven, this prevent incinerator from Sufficiently high steady temperature is kept to handle all organic and inorganic substances in waste product completely, in low-temperature circulating, is produced not The product (pollutant) of completely burned and the organic substance (such as dioxin, furans and greenhouse gases) of potential danger, and finally Release is into air.In high temperature circulation, the release increase of particle, nitrogen oxide and metal oxide, including a kind of known cause Cancer thing：Cr VI.In order to solve the above technical problems, using plasma gasification is to inorganic and/or organic solid in the prior art Waste, semisolid waste and/or liquid wastes are handled, and gasification furnace of the prior art is typically by plasma smelting furnace Pending waste product is transported in burner hearth by feed inlet, and the waste product heating gas for being sent to burner hearth is then treated by plasma torch Change either fusing formed gas or clinker then caused gas is reprocessed again to be formed available gas recycled or Form innocuous gas to be discharged into the air, or processing is carried out to clinker and forms construction material.But only pass through control in the prior art The distance between two plasma electrode components being arranged in plasma (orifice) gas smelting furnace control the temperature in burner hearth, working range Limited by burner hearth.

The content of the invention

To overcome technical problem existing in the prior art, the goal of the invention of the utility model is to provide a kind of plasma melting The DC power supply of stove, it provides different output voltage values according to the working status of plasma smelting furnace, holds plasma furnace Easily start to work, and expand working range.

To realize the goal of the invention, the utility model provides a kind of DC power supply of plasma smelting furnace, the plasma Smelting furnace includes at least the first plasma electrode component and the second plasma electrode component, and the DC power supply is used for first Electrode in electrode and the second plasma electrode component in plasma electrode component provides direct current energy, its feature exists In DC power supply includes power-supply controller of electric, transformer and N number of DC voltage unit by switching series connection, in plasma smelting furnace During igniting, the electric switch in N number of DC voltage unit is both turned on to the electrode and second in the first plasma electrode component Electrode in plasma electrode component provides electric energy, and after the success of plasma melting furnace igniting, power controller controls are each straight The state of the switch of voltage cell is flowed the temperature in the container of in vitro smelting furnace such as to control.

Preferably, each DC voltage unit is to less including a transformer secondary coil, a detecting circuit, an electricity Sub switch and a diode, wherein, the first end of transformer secondary coil is connected to the first end of detecting circuit, detecting circuit Second end be connected to the cathode of diode, the anode of diode is connected to the first end of electronic switch, electronics two switch the Two ends are connected to the second end of transformer secondary coil, and the control terminal of electronic switch is controlled by power-supply controller of electric.

Preferably, working status of the power-supply controller of electric through driver control electronic switch.

Preferably, power-supply controller of electric is connected to driver through photoisolator.

Preferably, the DC power supply of plasma smelting furnace further includes voltage sample circuit, and the voltage sample circuit is connected to N To sample total magnitude of voltage between total voltage output terminal and ground that a DC voltage unit by switching series connection forms.

Preferably, the DC power supply of plasma smelting furnace further includes current sampling circuit, and the current sampling circuit is connected in series to N In the circuit for total voltage source that a DC voltage unit by switching series connection forms, the first plasma electricity is flowed through with sampling The current value of electrode in the component of pole and the electrode in the second plasma electrode component.

Preferably, the electric current and magnitude of voltage control that power-supply controller of electric is provided according to current sampling circuit and voltage sample circuit Make the working status of the electric switch in N number of DC voltage unit connected by electric switch.

Preferably, plasma smelting furnace further includes control system and electrode assemblie servo control mechanism, the electrode assemblie servo The instruction that structure is provided according to control system, drives the first plasma electrode component or the second plasma electrode component fortune It is dynamic, to control the interval between the first plasma electrode component and the second plasma electrode component.

Preferably, the letter that plasma smelting furnace is provided at least provided with temperature sensor, control system according to temperature sensor Coordination electrode component servo control mechanism is ceased to control the interval of the first plasma electrode component and the second plasma electrode component And/or to power-supply controller of electric send instructions with control it is N number of by electric switch connect DC voltage unit in electric switch work Make state.

Preferably, plasma smelting furnace further includes rotation waste material runing rest.

Compared with prior art, the DC power supply of plasma smelting furnace provided by the utility model, it is according to plasma smelting furnace Working status different output voltage values are provided, make plasma furnace work easy in starting up, and expand working range.

Brief description of the drawings

Fig. 1 is the longitudinal cross-section schematic diagram of the utility model plasma smelting furnace；

Fig. 2 is the structure diagram that the utility model provides waste material stent；

Fig. 3 is the bottom view of the first plasma electrode component provided by the utility model；

Fig. 4 is the bottom view of the second plasma electrode component provided by the utility model.

Fig. 5 is the circuit diagram of DC current provided by the utility model.

Embodiment

The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng The embodiment for examining attached drawing description is exemplary, and illustrated embodiment is only used for explaining the utility model, and cannot be construed to this The limitation of utility model.

Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one It is a ", " described " and "the" may also comprise plural form.It is to be further understood that used in the specification of the utility model Wording " comprising " refer to there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or Addition one or more other features, integer, step, operation, element, component and/or combinations thereofs.It should be understood that work as me When claiming the element to be "connected" to another element, it can be directly connected to other elements, or there may also be intermediary element. Wording "and/or" used herein includes the whole or any cell and whole groups of one or more associated list items Close.

Those skilled in the art of the present technique are appreciated that all terms used herein, and (including technical term and section are academic Language), there is the meaning identical with the general understanding of the those of ordinary skill in the utility model fields.It should also be appreciated that It is term used in present specification, it should be understood that there is the meaning consistent with the prior art, unless in present specification By specific definitions, otherwise will not be explained with the implication of extramalization.

Fig. 1 is the longitudinal cross-section schematic diagram of the utility model plasma smelting furnace；Fig. 2 is that the utility model provides waste material stent Structure diagram；Fig. 3 is the bottom view for the first plasma electrode component that the utility model variation provides；Fig. 4 is this reality The bottom view of the second plasma electrode component provided with new variation.As shown in Fig. 1-4, according to the utility model one The plasma furnace 100 of embodiment includes：The container 101 being arranged on container support frame 119, the container, which has, to be received The cavity of waste material, the side wall of the container are provided with feed inlet, and the feed inlet connects feed arrangement, supplied by feed arrangement Material, is provided with telescopic isolating door 125, it is necessary to feed between the discharge gate of the feed arrangement and the feed inlet of container 101 When, control system makes motor work, and to drive isolating door 125 to open, if need not feed, control system makes motor work To drive isolating door 125 to close feed inlet.

Feed arrangement includes the feed space set with angle of inclination.In certain embodiments, this angle of inclination is feed space With the angle of mounting plane, about 0 degree and change between horizontal about 15 degree.In other embodiments, the angle of inclination 15 degree can be more than.It is under the effect of gravity, supply and discharge into container 101 from feed space to be obliquely installed feed arrangement The waste and liquid (such as water) extruded or leaked from waste bag.According to the utility model one embodiment, the charging dress Put including feed hopper 110, with mounting plane in 0 degree to 15 degree cylindrical shape feed space and be arranged in feed space and along feed space Axis extension transport axis 113, along circumferential, the fortune single screw mechanism used to be formed that is provided with fin 112 of spiraling of transport axis 113 Defeated axis 113 is driven by motor to be rotated, and is spiraled along the circumferential direction of cylindrical shape feed space and is provided with gas-guide tube 109, and the one of the gas-guide tube End is connected with the exhausting-gas hole of container 101, and the other end is communicated in container intracavity or is communicated in the waste heat boiler in downstream again.Along circle The circumferential direction of tubular feed space spiral setting gas-guide tube 109 formed cylinder, be provided with the periphery of the cylinder formed by gas-guide tube The insulating layer that heat-preservation cylinder 108 or twined by thermal insulation material covers to prevent the heat of gas-guide tube from distributing as far as possible.Cylindrical shape is fed The wall and gas-guide tube of room are prepared by Heat Conduction Material, and the Heat Conduction Material is, for example, metal material.Motor is according to control system Control signal can drive transport axis 113 to rotate.Be provided with upwards open feed inlet on the side wall of cylindrical shape feed space, it is described into Material mouth is connected to feed hopper 110, is provided with isolating door 127 between feed inlet and feed hopper 110, and motor is according to the finger of control system Order controls the isolating door operation so that feed inlet is closed and opened.According to one embodiment, plasma smelting furnace further includes collection Gas tank 300, an air inlet of the plenum chamber 300 are communicated in the exhaust outlet 107 of container 101, the plenum chamber another Air inlet can be communicated in external air supply channel；The exhaust outlet of plenum chamber 300 is communicated in gas-guide tube 109, plenum chamber through control valve 129 Gas content sensor (not shown) can be set to detect the gas ingredients in plenum chamber in 300.The gas of container discharge is first Plenum chamber 300 is stored in, using the gas ingredients in gas analyzer analysis plenum chamber, the pernicious gas in plenum chamber 300 Content it is exceeded when, control system control control valve 129, the exhaust outlet of plenum chamber 300 is connected with the inlet end of conduit 109, The exhaust outlet of gas-guide tube is communicated in container, gas is again passed by decomposition；When the content of the pernicious gas in plenum chamber 300 does not have When being above standard, control system control control valve 129, makes the exhaust outlet of plenum chamber be connected with the inlet end of waste heat boiler, utilizes Waste heat carries out heat exchange with industry water.

In certain embodiments, feed arrangement can provide waste material, such as solid waste, Polychlorinated biphenyls to container 101 Pollutant, refinery's waste, office waste, cafeteria's waste, plant maintenance waste are (for example, wooden bracket, the illumination scrapped Utensil, plant waste, wastewater sludge), pharmaceutical wastes, clinical waste, flying dust and bottom ash, industry and laboratory solvent, You Jihe Inorganic chemistry product, insecticide, organic chloride, thermal cell, refuse battery and the military waste including weapon component.Deng from Daughter smelting furnace includes multiple contractile isolating doors.Isolating door 127 can be set adjacent to feed hopper to allow to solid Waste material is supplied in the feed space of waste supply feed arrangement.Isolating door 125 sets adjacent to container 101 and allows to appearance Waste material is supplied in device 101.Isolating door 127 closing after, can be used nitrogen to feed space pressurize be obviously reduced and/ Or prevent air from entering in the container 101 for accommodating waste material, and prevent flammable forming gas to be flowed into container 101 substantially In.In certain embodiments, set prevent fuel gas flow into container 101 safety component, 127 emergency cut-off of isolating door, It can introduce nitrogen gas into feed space.Beaten using single screw mechanism used in the feed arrangement of the utility model in isolating door 125 When opening, so that it may which waste material is pushed into container 101 so that will in the region between the entrance of isolating door 125 and container 101 Substantially without remaining obsolete material.Except be obliquely installed feed space with allow gravity help by waste material move into container 101 In outside, being obliquely installed of feed space can help in waste discharge of the aqueous or other liquid into container 101.

When receiving waste material, to help to reduce and/or preventing the poisonous or nuisance for producing and/or discharging from feed space Disinfectant, can be introduced into feed space by matter by opening.In certain embodiments, this opening can be hopper port, it is in waste Carry out disinfection before into feed space.In other embodiments, opening can be set along a part for feed space.It is introduced into feed space Disinfectant can be discharged into container 101 and be handled as waste.In further embodiments, disinfectant can be fed by edge The nozzle that the path of room is set introduces.

According to an embodiment, in isolating door 125 and the part led between the entrance of container 101 can be refractory material lining In.

According to some embodiments, solid and liquid wastes are carried out at the same time processing substantially.Waste is handled at the same time to be basic, can be incited somebody to action Solid and liquid wastes are introduced into feed arrangement to form solid and liquid wastes homogeneous mixture.Plasma furnace can be handled The solid and liquid wastes of equal or different amount.

Container 101 can be disposed vertically, and locally or partly can be constructed so as to be tieed up if a part removed During shield, then other parts are positively retained at its appropriate position.In certain embodiments, container 101 can be elliposoidal, can also Can also be that lower part is cylindrical chamber and top is cylindrical chamber for cylinder, centre is truncated cone-shaped room with by upper chamber and lower room Transition connects.

The lower room of container 101 may include slag/metal portion and high temperature turbulent portion, it can promote gaseous dissociation and pyrolysis anti- Should.Container 101 includes high heat-resisting resistant to corrosion layer, insulating layer, insulating layer and flame retardant coating successively from inside to outside.According to an implementation Example, if the inner wall of container can be formed by dried layer refractory composition, can also be made by mild steel and by refractory masses Isolation inner wall be made, which may include diamond dust or graphite brick, hydraulicity castable refractory, ceramic wafer, pottery Porcelain coating, close pressing plate and/or high heat-resisting resistant to corrosion Pyrex block.The design of the inner wall of container 101 is contemplated that：How operation is made Flexibility, minimize how heating time, allowing natural cooling and/or do not causing the hot-face insulation portion to container 101 And/or in the case of the infringement of other parts, how to realize daily frequently heating and cooling.

In container can with set temperature sensor and/or pressure sensor with can to the temperature in container 101 and/or Pressure is continuously or substantially continuously monitored to ensure the negative pressure in container 101 within preset range.Can be by container One or more monitoring mouths are set on 101 walls, so that the probe of temperature sensor and/or pressure sensor is stretched into container, with Detection temperature and/or pressure, temperature sensor and/or pressure sensor can be connected with control system the temperature detected to be believed Breath and pressure information send control system to, and the data that control system is measured according to it control the working status of other components, institute State servo control mechanism, the output voltage of direct voltage source of other components such as motor.In container 101, predetermined range of negative pressure can be big Between about -5mm water columns and about -25mm, but operating pressure selection may depend on the characteristic of pending waste material and change.It is excellent Selection of land, negative pressure is between -5mm water columns and about -15mm water columns.

When inorganic wastes are provided be given to container 101 when, inorganic wastes vitreous or fusing can be made by heating unit.Heating Device is the device that can convert electrical energy into thermal energy.These devices can by grade that two electrodes (anode and cathode) forms from Sub- torch, the plasmatorch are installed in container 101 and controllable argon-arc plasma field can be produced inside container 101.When with compared with When basicly stable air-flow is formed between the electrode assemblie of high current value, plasma electrode component can produce controllable plasma .Heating unit can produce the plasma energy of about 100kW.

The heating unit of the plasma furnace 100 of the utility model first embodiment includes two plasma electrode groups Part, the second plasma electrode component include supporting item 130 and curved electrode 129, and the supporting item 130 is by high-temperature alloy Be made, it include diameter be slightly less than the annulus of 101 internal diameter of container, diameter be equal to curved surface chord length annulus and radially connect the Multiple connection straps of one annulus and the second annulus form, and curved electrode 129 is fixed on diameter by mechanical structure and is equal to curved surface On the annulus of the chord length of plate, curved slab shape electrode 129 is preferably convex arc-shaped curved surface.First plasma electrode Component includes comb electrode, it includes at least a connecting shaft, electrode plate 1022 and the multiple electricity being vertically set on electrode plate Pole, such as 1021.The free end of the multiple electrodes column of first plasma electrode component is identical with the spacing of curved slab, preferably Ground, electrode plate 1022 are patty, and multiple electrodes column uniform vertical is arranged on electrode plate.Electrode is fixed in one end of connecting shaft On plate 1022, other end connection gear 106.First plasma electrode component can control in container by electrode assemblie servo control mechanism Interior up and down motion.Second plasma electrode component is fixed on the appropriate location in container by its supporting item 130, it is preferable that Curved surface plate electrode 129 is placed in immediately below waste material swivel mount, in this way, when being positioned over that waste material is melted on waste material swivel mount, melt Liquid is flowed into container bottom by curved slab electrode assemblie, so as to not allow to be also easy to produce incrustation and/or precipitated metal on electrode plate, such as This can keep plasma melting stove long-term stable operation.Simultaneously as in the first plasma electrode component in the utility model Electrode is pectination, is conducive to the gas ionization in container to produce argon-arc plasma field.

First plasma electrode component 102 is installed on container top, and under the action of electrode assemblie servo control mechanism Run up and down along the axis of the second plasma electrode component 131, with the temperature in control container cavity.Etc. in vitro electrode assemblie 102 include hollow axis and the electrode assemblie section being installed on axis, and the cavity of axis is used to be connected to electricity through conducting wire, the conducting wire In the component section of pole, for providing electric energy to electrode assemblie section, the electric energy is subsequently carried out by direct-current power supply with reference to attached drawing 5 Illustrate the circuit of DC power supply.For the electrode assemblie servo control mechanism bag for driving the first plasma electrode component to run up and down Include：Stent 123, Saw blade 122, patty gear 106, patty gear 104 and driving motor 105, stent 123 is fixed on molten The top of stove item, its center are provided with through hole and are passed through for being connected in the sleeve shaft of electrode assemblie section, be vertically arranged on the stent There is Saw blade 122.Patty gear 106 is fixed in one end of the sleeve shaft of plasma electrode component 102, and the other end is connected to Electrode assemblie section.The gear is engaged with Saw blade 122.The output shaft of motor 105 is engaged with gear 104, and motor 105 is being controlled Work under the action of system processed, when needing the temperature in container 101 to reduce, the output shaft driven gear 104 of motor 105 Rotating clockwise, gear 104 rotates counterclockwise with moving gear 106, and gear 106 is moved up along Saw blade 122, so that the One plasma electrode component 102 moves up, so that plasma electrode component 102 and plasma electrode component 129 Distance increases, and the temperature of container 101 reduces.When needing the temperature in container 101 to raise, the output shaft band moving teeth of motor 105 Rotation, gear 104 rotate clockwise wheel 104 with moving gear 106 counterclockwise, and gear 106 is moved down along Saw blade 122, from And the first plasma electrode component is moved down, so that plasma electrode component 102 and plasma electrode component 129 distance reduces, the temperature rise of container 101.

In the utility model, plasma smelting furnace further includes waste material runing rest, it includes diameter and is slightly less than container intracavity The annulus gear 1301 of diameter, diameter are much smaller than the annulus 1302 of container intracavity diameter, and annulus gear 1301 can be rotated with waste material Gear engagement in stent servo control mechanism；Multiple length radially are evenly arranged between annulus gear 1301 and annulus 1302 The radially connected bar of cube shape, such as 1033, at least one circumferential connection strap are additionally provided between two neighboring connection strap, in this way, making Waste material runing rest forms big mesh shape.During making, the size of mesh is set according to the size of pending waste material, in general, net The size in hole is less than the size of waste material.If waste material runing rest can be designed to annular groove to accommodate liquid by treatment liquid waste material Body.

Waste material runing rest servo control mechanism includes travelling gear 124, drive gear 116 and motor 17.In container 101 The circumferentially arranged fixed frame for having multiple L-types in side wall, such as 126, the circumferential direction of multiple fixed frames along container inner wall is uniform and same Highly set, multiple fixed frames are used for stationary annular guide rail 128.Opening is provided with the side wall of container 101, be open interior set There is axis, travelling gear 124 can be rotated around the axis, and travelling gear 124 extends part and the output of motor 117 outside container The drive gear 116 connected on axis engages, and the part extended in container is engaged with annulus gear 1301.Under annulus gear 1301 The annular groove or multiple slide assemblies that can be slided on guide rail 128 that Open Side Down are provided with, during installation, by guide rail 128 are embedded in the slide assemblies under the annulus gear 1301 of waste material runing rest or in annular groove, in this way, working as motor During 117 drive its drive gear 116 rotation, travelling gear 124 also rotates, so as to drive ring gear 1031 also to rotate.Work When, the first position of waste material runing rest is placed under feed inlet, and the solid waste that feed inlet pours into first is positioned over waste material rotation branch The first position of frame；When waste material runing rest rotates under the action of stent servo control mechanism, the second place of waste material runing rest Be placed under feed inlet, the first position for having accepted waste material leave the position of feed inlet lower end by the cushioning device heating in container and Gasification and/or fusing, so circulation, the solid waste being poured into container are evenly arranged on waste material runing rest, Bu Huizao Into accumulation, make reaction more fully and quick.

By control the first plasma electrode component in electrode and the second plasma electrode component in electrode it Between gap, the arc voltage between electrode can be controlled, so as to adjust the internal temperature of container 101.In first embodiment, Mainly refer to the top of the electrode in the first plasma electrode component and electrode in the second plasma electrode component Gap between bottom.The size in the gap between electrode is selectable such that arc voltage substantially remains in design level.This sets Meter is horizontal it is contemplated that following factor：The feature of waste；The energy of heating unit supply and the dissociation of completion molecule, pyrolysis, gasification Ratio between energy needed for fusion processes expectation；It is expected the ratio between the amount of the forming gas of generation and design capacity；With/ Or temperature and/or Oxygen Condition in container 101.Put on the electrode and the second plasma in the first plasma electrode component The voltage between electrode in body electrode assemblie is higher, and admissible gap is bigger between electrode, and operating current is lower.If Voltage drops to that minimum predetermined threshold is below horizontal, then can reduce the gap between the electrode in electrode assemblie, until voltage liter Height arrives or more than minimum predetermined threshold level.If voltage is increased to more than maximum predetermined threshold value level, electrode can be increased The gap between electrode in component, until voltage stabilization is within the scope of minimum to maximum predetermined threshold value.In 200kW power In plasma smelting furnace, the gap between electrode in electrode assemblie is selectable such that working voltage is approximately 200 volts.It is minimum and Max-thresholds predetermined threshold levels may be selected to be about 160 to about 240 volts, and the gap between electrode assemblie can be about 20mm to about 150mm.Heating unit can be powered by heating system by alternating current and/or direct current, this practicality is new Type is powered by DC power supply, is subsequently illustrated with reference to attached drawing 4.

Vitreous or fusing waste from waste material can form slag such as glassy slag, it is collected in container In the slag bath of 101 bottoms.Slag can be discharged by one or more slag notches 120 from container 101, and the slag notch may be provided at At the height specified away from 101 bottom of container suitably and it may be provided at the radial position on the periphery of container 101.One A or multiple slag notches are at an angle to the horizontal surface setting, and the molten slag layer of melting can keep the air seal of approximate continuous.One A or multiple slag notches about can be 10 degree relative to the angle of the horizontal plane with intersection of the container 101 in slag notch. Alternately, multiple slag notches can be set horizontal by different angles.

Slag can be drained into by slag notch in slag/metal alloy collection device.Slag/metal alloy collection device can Including drag-out slag car.Drag-out slag car can be that air cooled type can also be water-cooling type.The slag of discharge can quench in water tank, cause discharge Slag cures and is broken into less.Slag can stand leaching in the solid state.The solid slag removed from container 101 can lead to Cross conveyer belt or other appropriate devices being used for transmission and be transferred to hopper and recycling from slag/metal alloy collection device Or remove.Slag also cocoa is discharged into other specially appointed building machinery devices, such as by being formed in the mould of sand isolation Construction material.

In the situation with more than one slag notch, slag notch may be provided at the different positions of container 101 And/or at different height.Slag notch can open one every time with alternating sequence, or open at the same time substantially.During slagging tap, hold The supply and/or processing of waste in device 101 can continue.

Solid slag can be used for many business applications, such as road construction, aggregate, blast cleaning, glass fibre And/or glass fibres material, solid slag can be harmless and need not can fill.In addition it can form decoration ornamental slab for paving the floor Or it is used in combination with construction material and combines Household building material to form lightweight.Slag notch is gone out by what is be made of heat-resisting material Slag plug is closed.When to start slag tap when, will slag tap plug manually or remotely pull out so that molten slag/metal mixture Exited into from container 101 in collection device.

Due to the low-oxygen environment in container 101, some metal oxides being present in waste stream can be reduced into its element Form.Being present in the metal in waste material and metal alloy can also melt in container 101.After a period of time, can be in slag Gather a metal layer in bottom of pond portion.Such as the special metal of iron class may be not easy the silicate reaction with containing in slag bath.Slag This some metal and metal oxide are can absorb, but if there are a large amount of metals in waste, then metal may gather.As above institute State, molten metal can be discharged together with molten slag by slag notch, and be handled.

The waste received in container 101 can undergo molecular dissociation and pyrolytic process.Pyrolysis is such process：With incinerate or Burning is compared, and the heat-flash run in extreme low-oxygen environment makes molecular dissociation by the process.During this process, waste can lead to Cross heating devices heat.The debirs of heating can be handled, until it is dissociated into its elemental composition, such as solid carbon (carbon Particulate) and hydrogen.If exist in waste in the form of the derivative of hydrocarbon, oxygen, nitrogen and halogen (such as chlorine) Also can be released.After pyrolysis and/or partial oxidation, caused gas (for example, synthesis gas) may include carbon monoxide, Hydrogen, carbon dioxide, vapor, methane and/or nitrogen.

The oxygen and chlorine of dissociation can freely be reacted with caused carbon and hydrogen, and can be re-formed various complicated and possible Harmful organic compound.However, these compounds are formed at a high temperature of generally can not being kept in container 101, at high temperature, Only the simple compounds of limited quantity can be stable.When there are when chlorine or other halogens, most commonly stable compound is Carbon monoxide, nitrogen, hydrogen and hydrogen chloride gas.

The amount of oxygen present in waste material may be not enough to all carbon conversions present in waste material into CO gas.It is useless Moisture present in material can react to absorb energy from the hot environment in container 101 and form one by " steam conversion " to be aoxidized Carbon and hydrogen.If the oxygen or moisture of Shortcomings amount, unreacted carbon particulate can be entrained in the gas flow simultaneously in waste stream Set out from container 101.Therefore, it is necessary to be handled again in secondary reactor.

The synthesis gas produced in container 101 is heated at least about 1000 DEG C, includes what is be not decomposed in the forming gas Composition, therefore, according to the utility model one embodiment, plasma smelting furnace further includes cycle subsystem, from the exhaust of container 101 The gas discharged in mouth 107 imports container again, to be decomposed again to the composition not being decomposed.According to the utility model one A embodiment, by the rotation shape gas-guide tube being first introduced into from the gas that container 101 is discharged in feed arrangement with to useless in feed space Material is preheated, and is then drained into again by outlet in container 101.According to the utility model, the waste material quilt in container is entered Shift onto on bowl-shape waste material runing rest, and the stent can give up clockwise or counterclockwise under the action of motor 117 Material runing rest with solid waste it is rotating during by the heating devices heat in container decomposed or melted, slag passes through Gap on stent falls into container bottom.Such structure prevents waste material to be accumulated in container bottom, so that the efficiency of heating surface is improved, The speed of processing waste product greatly improves.

Fig. 5 is the circuit diagram of DC power supply provided by the utility model, as shown in figure 5, according to one reality of the utility model The DC power supply is applied to be used to provide direct current energy, this practicality to the first plasma electrode component and the second plasma electrode component The DC power supply of new offer includes B, N grades of DC voltage units of transformer and power-supply controller of electric, and the transformer includes one Primary coil and N number of secondary coil, adjacent power unit are cascaded by afterflow coil, and the N is whole more than or equal to 4 The alternating voltage of the 400Hz of 115V/220V is transformed into required alternating voltage by number, the transformer.N number of DC voltage The composition of unit is identical, and each power supply unit includes first coil (such as L1, L2 ..., LN) of transformer secondary output, a rectification Device (such as D11, D21 ... DN1), fly-wheel diode (as (D12, D22 ..., DN2), electronic switch (such as T1, T2 ..., TN) and driving stage (DR1, DR2 ..., DRN), electronic switch is IGBT pipes, the cathode connection of the rectifier In the first end of the coil of transformer secondary output, the anode of rectifier is connected to the anode of fly-wheel diode；Sustained diode is just Pole is connected to the collector component of IGBT pipes, and the emitter of IGBT pipes is connected to the second end of the coil of transformer secondary output, IGBT The grid of pipe is connected to driving stage, the control signal control IGBT of the power-supply controller of electric received by driving stage according to photoisolator The break-make of pipe.IGBT pipes work on off state, when the grid of IGBT inputs a high potential, the conducting of IGBT pipes, coil Second end is equivalent to the cathode for being connected to fly-wheel diode.The ac voltage rectifier conversion dc voltage that rectifier exports coil. The voltage at fly-wheel diode both ends is that upper end is just, lower end is negative.When the grid of IGBT pipes inputs a low potential, IGBT Pipe ends.The voltage at fly-wheel diode both ends is diode junction voltage.Driver through photoisolator (such as IN1, IN2 ..., INN) it is connected with power-supply controller of electric.

It is connected between 1st power supply unit and the 2nd power supply list with afterflow coil L12, i.e., afterflow coil L12 is connected to Between the anode of sustained diode 1 and the cathode of sustained diode 2；Between 2nd power supply unit and the 3rd power supply unit It is connected with afterflow coil L23, and so on, it is connected between the N-1 power supply unit and n-th power supply unit with afterflow coil Connect.In this way, in the case that if the electronic switch of each power supply unit simultaneously turns on, the total output of AC modulation power supply is always electric Press as V is always the sum of voltage of each direct voltage output., can be by the bottom of container or survey wall in plasma smelting furnace Power hole is set so that electrode assemblie is connected to the DC power supply of outside.

In plasma melting furnace igniting, the electric switch in N number of DC voltage unit is both turned on to the first plasma electrode Electrode in electrode and the second plasma electrode component in component provides higher voltage, in the success of plasma melting furnace igniting Afterwards, the state of the switch of each DC voltage unit of power controller controls such as controls at the temperature in the container of in vitro smelting furnace. Preferably working status of the power-supply controller of electric through driver control electronic switch.Preferably power-supply controller of electric connects through photoisolator It is connected to driver.Preferably, the DC power supply of plasma smelting furnace further includes voltage sample circuit, and the voltage sample circuit is by electricity Hinder total voltage output terminal that R1 and resistance R2 is in series and is connected to N number of DC voltage unit composition by switching series connection Between ground, the node being connected from resistance R1 with resistance R2 takes out sampling voltage, and gives power-supply controller of electric；Preferably, wait from The DC power supply of sub- smelting furnace further includes current sampling circuit R3, the current sampling circuit R3 and is connected in series to N number of by switching series connection DC voltage unit composition total voltage source circuit in, with sampling flow through the first plasma electrode component and the second grade from The current value of sub-electrode component.Preferably, the electricity that power-supply controller of electric is provided according to current sampling circuit and voltage sample circuit The working status of stream and the electric switch in the N number of DC voltage unit connected by electric switch of magnitude of voltage control.DC power supply is also Including capacitance C1, it, which is connected between total power output end and ground, is used to filter.

According to the utility model one embodiment, it is at least provided with temperature sensor, control in plasma container 101 Unite according to the information coordination electrode component servo control mechanism of temperature sensor offer to control in the first plasma electrode component The interval of electrode and the electrode in the second plasma electrode component, so that the temperature in control container, when passing through electrode assemblie It is N number of by establishing by cable by being controlled with power-supply controller of electric when servo control mechanism again cannot be adjusted the interval electrode assemblie The working status of the electric switch in the DC voltage unit of series connection is closed, the voltage of two electrode assemblies is supplied to control, and then Temperature in control container, since the utility model is provided with regulated power supply, expands the temperature in plasma furnace vessel Scope is spent, has further adapted to the needs of the waste material to handling different qualities.

It should be noted that " one embodiment " referred to herein, " embodiment " or " one or more implementation Example " is it is meant that the special characteristic, structure or the characteristic that describe are included at least one implementation of the utility model in conjunction with the embodiments In example.Further, it is noted that word example " in one embodiment " is not necessarily all referring to same embodiment here.

The utility model is limited it should be noted that above-described embodiment illustrates rather than the utility model, And those skilled in the art can design alternative embodiment without departing from the scope of the appended claims.In right In it is required that, any reference symbol between bracket should not be configured to limitations on claims.Word "comprising" is not arranged Except there are element or step not listed in the claims.Word "a" or "an" before element does not exclude the presence of more A such element.The utility model can be by means of including the hardware of some different elements and by means of properly programmed Computer is realized.The use of word first, second, and third does not indicate that any order, merely to difference.

Furthermore, it should also be noted that the language used in this specification primarily to readable and teaching purpose and select Select, rather than selected to explain or limit the theme of the utility model.Therefore, without departing from appended claims In the case of the scope and spirit of book, for those skilled in the art many modifications and changes be all it is aobvious and It is clear to.For the scope of the utility model, the disclosure done to the utility model is illustrative and not restrictive, sheet Protection domain required by utility model is defined by the appended claims.

Claims (10)

1. a kind of DC power supply of plasma smelting furnace, the plasma smelting furnace includes at least the first plasma electrode component and the Two plasma electrode components, the DC power supply are used for the electrode and the second plasma in the first plasma electrode component Electrode in body electrode assemblie provides direct current energy, it is characterised in that DC power supply includes power-supply controller of electric, transformer and N number of By switching the DC voltage unit of series connection, in plasma melting furnace igniting, the electric switch in N number of DC voltage unit is both turned on With in the electrode in the first plasma electrode component and the second plasma electrode component electrode provide electric energy, wait from After sub- smelting furnace is lighted a fire successfully, the state of the switch of each DC voltage unit of power controller controls such as controls at the in vitro smelting furnace Temperature in container.

2. the DC power supply of plasma smelting furnace according to claim 1, it is characterised in that each DC voltage unit is to less Including a transformer secondary coil, a detecting circuit, an electronic switch and a diode, wherein, transformer secondary output The first end of coil is connected to the first end of detecting circuit, and the second end of detecting circuit is connected to the cathode of diode, diode Anode be connected to the first end of electronic switch, the second end that electronics two switchs is connected to the second end of transformer secondary coil, The control terminal of electronic switch is controlled by power-supply controller of electric.

3. the DC power supply of plasma smelting furnace according to claim 2, it is characterised in that power-supply controller of electric is through driver control The working status of electronic switch processed.

4. the DC power supply of plasma smelting furnace according to claim 3, it is characterised in that power-supply controller of electric is through Phototube Coupling Device is connected to driver.

5. the DC power supply of plasma smelting furnace according to claim 4, it is characterised in that voltage sample circuit is further included, The voltage sample circuit is connected to total voltage output terminal and ground that N number of DC voltage unit by switching series connection forms Between to sample total magnitude of voltage.

6. the DC power supply of plasma smelting furnace according to claim 5, it is characterised in that current sampling circuit is further included, The current sampling circuit is connected in series in the circuit for total voltage source that N number of DC voltage unit by switching series connection forms, The current value of the electrode in the electrode and the second plasma electrode component in the first plasma electrode component is flowed through with sampling.

7. the DC power supply of plasma smelting furnace according to claim 6, it is characterised in that power-supply controller of electric takes according to electric current In the N number of DC voltage unit connected by electric switch of electric current and magnitude of voltage control that sample circuit and voltage sample circuit are provided Electric switch working status.

8. the DC power supply of plasma smelting furnace according to claim 7, it is characterised in that plasma smelting furnace further includes control System and electrode assemblie servo control mechanism, the instruction that the electrode assemblie servo control mechanism is provided according to control system, driving first etc. Plasma electrode component or the second plasma electrode component movement, to control the first plasma electrode component and second etc. Interval between plasma electrode component.

9. the DC power supply of plasma smelting furnace according to claim 8, it is characterised in that plasma smelting furnace at least provided with Temperature sensor, the information coordination electrode component servo control mechanism that control system is provided according to temperature sensor with control the first grade from The interval of daughter electrode assemblie and the second plasma electrode component and/or N number of logical to control to power-supply controller of electric send instructions Cross the working status of the electric switch in the DC voltage unit of electric switch series connection.

10. according to the DC power supply of any plasma smelting furnaces of claim 1-9, it is characterised in that plasma smelting furnace is also Including rotating waste material runing rest.