CN114853314B - Glass electric melting solidifying device capable of in-situ processing harmful solid waste - Google Patents

Glass electric melting solidifying device capable of in-situ processing harmful solid waste Download PDF

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CN114853314B
CN114853314B CN202210590652.XA CN202210590652A CN114853314B CN 114853314 B CN114853314 B CN 114853314B CN 202210590652 A CN202210590652 A CN 202210590652A CN 114853314 B CN114853314 B CN 114853314B
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electrode
glass
temperature
voltage
electrofusion
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CN114853314A (en
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请求不公布姓名
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63653 Troops of PLA
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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/005Melting in furnaces; Furnaces so far as specially adapted for glass manufacture of glass-forming waste materials
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/02Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces

Abstract

The invention discloses a glass electrofusion solidifying device capable of in-situ processing harmful solid waste, which uses electrofusion glass technology to solidify solid pollutant in situ, reduces disturbance to pollutant, and reduces secondary pollution caused by pollutant in transportation, transfer and pretreatment processes; the insertion depth of the graphite electrode and the voltage and current of the electrode are controlled remotely, the molten state of the pollutant is monitored by using a temperature sensor, a pressure sensor and the resistivity of the melt, and the direct contact between operators and the pollutant is reduced; the device has the advantages of safe discharge of gas generated in the melting process of pollutants, safe operation, convenience for field action and the like, is suitable for in-situ treatment of hundred kilogram-level harmful solid pollutants, can expand the capacity of a power supply system and a heating system, increases the electrode spacing and the size of the tail gas hood, and improves the waste amount of batch treatment.

Description

Glass electric melting solidifying device capable of in-situ processing harmful solid waste
Technical Field
The invention relates to the technical field of hazardous solid waste treatment, in particular to a glass electrofusion solidification device capable of treating hazardous solid waste in situ.
Background
The glass solidification is to mix the high-level waste with the glass forming agent, melt at high temperature, form the stable glass solidified body containing the radionuclide through annealing treatment, the leaching rate of the radionuclide in the solidified product is lower, the solidification volume reduction effect is obvious, and the glass solidification has a plurality of technological modes: one is a commercial scale furnace solidification technology, which is an ex-situ treatment technology, wherein harmful wastes are collected, pretreated, glass solidification treatment is carried out by adopting a high-temperature furnace such as a Joule-heated ceramic furnace, a high-frequency induction water-cooled crucible and the like, the working temperature is generally about 1200 ℃, and the other is an in-situ glass solidification technology, namely, pollutants buried underground are melted by utilizing electric energy through an in-situ heating mode, so that harmful components are evaporated or pyrolyzed or fixed in a melted product, and finally, a durable glass body (or glass ceramic body) similar to obsidian and basalt in chemical property is formed, and the working temperature is generally 1400-2000 ℃.
The principle of the in-situ glass solidification process is that a square matrix consisting of molybdenum electrodes or graphite electrodes is inserted into soil to be treated, a conductive starter is placed between the electrodes, voltage acts on the electrodes to generate current in a starting path, the current heats and melts surrounding soil, along with the expansion of a vitrification area, non-volatile harmful elements such as radionuclides, heavy metals and the like can be packaged into a glass structure, byproducts of pyrolysis migrate to the surface of the vitrification area and burn in air or are led into a tail gas treatment system through a tail gas cover, and the technology does not need to dig out polluted soil or harmful wastes and can simultaneously treat various pollutant types (including heavy metals, radionuclides, organic matters and the like); waste size can be larger; the solidified body has excellent physical and chemical stability, the technology has high thermal conversion efficiency, the solid pollutant is not required to be disturbed, the technology can be directly implemented in the pollutant production place, the treatment scale is designed, the flexibility and the maneuverability are high, but the current domestic nuclear industry field focuses on the ex-situ treatment furnace technology such as a cold crucible for the high-level waste liquid glass solidification treatment, which is applied abroad, and the in-situ glass solidification technology has no mature equipment research and development at home at present, and has no related technical research and application report.
Disclosure of Invention
The invention aims to provide a glass electrofusion system which utilizes a diesel generator set to supply power, servo-controls the lifting position of a top-inserted electrode, controls the voltage output of a T-shaped transformer, pumps air to maintain the negative pressure of the system and cures pollutants under a tail gas hood in situ.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention relates to a glass electric smelting solidifying device capable of in-situ processing harmful solid wastes, which comprises a power supply system, a measurement control system, an electric smelting heating system and an exhaust gas processing system, wherein the power supply system comprises a diesel generator set and a container, the measurement control system comprises a servo controller, a voltage regulating controller and a Scott T-shaped transformer, the electric smelting heating system comprises an electrode clamping piece, a graphite electrode, a thermocouple, an exhaust gas cover, an observation window and a camera, the exhaust gas processing system comprises an air pump and an exhaust gas cooling and filtering device, the invention is realized by the principle of in-situ glass solidifying technology, the diesel generator set is used for supplying power, the servo controller and the voltage regulating controller are used for controlling the lifting and the power supply of the electrode, the air in the exhaust gas cover is safely discharged by the air pump and the filter, the single-time treatable volume is more than 0.5mx0.5mx0.5m, the mass is more than 200kg soil, the solidifying operation flow is as follows,
s1: preparing solidification, namely firstly transporting the system to the vicinity of a region to be treated, paving low-melting glass powder on the surface of soil to be treated, mixing scaly conductive graphite powder and additives in proportion to form an initiator, paving the initiator on the surface of the glass powder according to a diagonal line, finally placing a tail gas cover right above the initiator, starting a diesel generator set, checking the parameter display of a system instrument, adjusting a Scott T-type transformer to a voltage grade for outputting a high-grade after the system is displayed normally, and switching a voltage-adjusting controller to manual control;
s2: the method comprises the steps of conducting and starting, controlling the electrode to descend by using a servo controller, inserting a graphite electrode into a starter, observing voltage and current meter display, controlling the output of a Scott T-shaped transformer by using a voltage regulating controller, raising the power supply voltage of the graphite electrode, stopping boosting after the current appears on the meter display electrode, and conducting the starter at the moment;
s3: the air pump is turned on, power operation is adjusted according to the air yield, the air yield is low in the initial temperature rising period, low-power operation is kept, and heat loss is avoided;
s4: the gear switching and the current setting are carried out, the fluctuation of the resistance can occur between the electrodes along with the rise of the temperature, the resistance is smaller, the current is required to be regulated to be large in order to ensure the generation of enough heat, a low-voltage high-current gear is selected, when graphite powder is oxidized and consumed, glass powder is melted and permeated into soil, and when the resistance is increased, the voltage gear is increased and the high-voltage low-current mode is converted;
s5: depth control, wherein the upper soil is gradually melted and softened along with the temperature rise, and the depth of the electrode inserted into the soil downwards is regulated by a servo controller to gradually melt the lower soil until the penetration reaches a preset target;
s6: temperature control, namely, as the temperature of the gas in the tail gas hood rises to more than 800 ℃, the pressure of the gas increases, so that the suction pump reaches the maximum operating power to ensure the negative pressure in the tail gas hood, the heat loss of the system is higher, the heating power also needs to be synchronously increased to ensure the temperature to continuously rise, a low-voltage gear is selected, the electrode current set value is increased, and the input power between electrodes is increased;
s7: and (3) solidifying and cooling, when the melting depth and the temperature reach the expected values and last for a period of time of more than 5 minutes, turning off the power supply of the electrode, continuously working the air pump and the tail gas cooling and filtering device, loosening the electrode clamping piece after the soil in the tail gas hood is cooled to normal temperature, integrally lifting and moving the tail gas hood to the vicinity of the next polluted soil to be treated, turning off all the electric and gas switches of the whole system, and turning off the diesel generator set.
As a further scheme of the invention: the paving area of the low-melting-point glass powder in the S1 is 0.5m multiplied by 0.5m, the thickness is 0.1m, the glass point temperature is 400-500 ℃, and the area of the scaly conductive graphite powder is 0.5m multiplied by 0.5m, and the thickness is 0.1m.
As still further aspects of the invention: in the step S2, the starter is heated after being conducted, the resistance between the electrodes is gradually reduced, the current between the electrodes is gradually increased, and the voltage regulating controller is switched into a constant current control automatic mode.
As still further aspects of the invention: in the S4, the whole control process mainly adjusts the voltage gear according to the temperature and the resistance change between the electrodes, so that the effective heating power is maintained, and the temperature is increased.
As still further aspects of the invention: and after the temperature accords with the expectation in the step S6, the temperature is kept stable at 1400 ℃ for a period of time more than 5min by adjusting the current set value.
As still further aspects of the invention: and in the step S7, backfilling the melted and solidified polluted soil or moving the polluted soil to a relevant disposal point according to the requirement.
As still further aspects of the invention: the rated output power of the diesel generating set is 300kW; the diesel generator is fixed in the container and can be moved to the treatment site by a forklift or crane.
As still further aspects of the invention: the Scott T-shaped transformer has the capacity of 160KW, 4 gears are arranged, and the maximum output voltage of each gear is 380V, 300V, 200V and 100V respectively.
As still further aspects of the invention: the electrode adopts an oxidation-resistant coating graphite electrode, the diameter of the electrode is 80mm, internal threads of M36×2 are reserved at two ends of the electrode respectively, the electrode is connected through an external thread graphite connecting pin of M36×2, the axial center distance of the 4 graphite electrodes is 0.5M, the graphite electrodes are distributed in square shape perpendicular to the ground, and each pair of two graphite electrodes is 1 group of heating load.
As still further aspects of the invention: the thermocouple adopts a type B thermocouple, and the temperature measurement range of the type B thermocouple is normal temperature to 1700 ℃.
Compared with the prior art, the invention has the beneficial effects that:
the invention uses the electric melting glass technology to carry out in-situ solidification on the solid pollutants, thereby reducing the disturbance on the pollutants and reducing the secondary pollution caused by the pollutants in the transportation, transfer and pretreatment processes; the insertion depth of the graphite electrode and the voltage and current of the electrode are controlled remotely, the molten state of the pollutant is monitored by using a temperature sensor, a pressure sensor and the resistivity of the melt, and the direct contact between operators and the pollutant is reduced; the device has the advantages of safe discharge of gas generated in the melting process of pollutants, safe operation, convenience for field action and the like, is suitable for in-situ treatment of hundred kilogram-level harmful solid pollutants, can expand the capacity of a power supply system and a heating system, increases the electrode spacing and the size of the tail gas hood, and improves the waste amount of batch treatment.
Drawings
FIG. 1 is a schematic diagram of the overall layout of a glass electrofusion solidification apparatus capable of in situ treatment of hazardous solid waste; in fig. 1, a 1-power supply system; 2-a measurement control system; 3-an electrofusion heating system; 4-an exhaust gas treatment system.
FIG. 2 is a logic diagram of electrode power control of a glass electrofusion solidification apparatus capable of in situ treatment of hazardous solid waste.
FIG. 3 is a schematic view of a first partial structure of a non-standard heating portion of a glass electrofusion solidification apparatus capable of in situ treatment of hazardous solid waste; in FIG. 3, a 1-electrode servo; a type 2-B thermocouple; 3-galvanic holes; 4-sand.
FIG. 4 is a schematic view of a first partial structure of a non-standard heating portion of a glass electrofusion solidification apparatus capable of in situ treatment of hazardous solid waste; in FIG. 4, a type 1-B thermocouple; 2-flange connection; 3-reserving an interface; 4-adjusting the turning plate; 5-an air inlet; a type 6-B thermocouple; 7-an exhaust duct; 8-a dust removal induced draft fan; a 9-iron stand; 10-tail gas cooling and purifying treatment device.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 4, in an embodiment of the present invention, a glass electrofusion curing device capable of in-situ treatment of hazardous solid waste includes a power supply system 1, a measurement control system 2, an electrofusion heating system 3 and an exhaust gas treatment system 4, wherein the power supply system 1 is used for outdoor power supply of the whole system, the power supply system 1 includes a diesel generator set and a container, the measurement control system 2 controls and measures parts for controlling a heating electrode position, an electrode voltage and a current, and records data such as temperature, current, voltage and the like in the curing process, the measurement control system 2 includes a servo controller, a voltage regulator controller and a scott type transformer, and the servo driver controls a servo motor to realize position control of a graphite electrode; the voltage regulating controller controls the voltage output of the Scott T-shaped transformer to realize the control of the input power of the electrode; the Scott T-shaped transformer converts three-phase input into two-phase output to realize load balance, the measurement control system 2 also comprises a transformer, a control cabinet and a computer, the transformer is mainly used for measuring current and voltage of the input end and the output end of the transformer, the control cabinet is mainly used for installing and fixing a servo driver, a voltage regulating controller, the transformer and related circuit breaking protectors, various control instruments, the computer is mainly used for displaying and storing voltage, current and temperature data and camera video, the electric smelting heating system 3 is used for heating and preserving sand, the electric smelting heating system 3 comprises an electrode clamping piece, a graphite electrode, a thermocouple, a tail gas cover, an observation window and a camera, the tail gas cover is used for placing a top servo mechanism and preserving sand, the tail gas cover is divided into a shell and a lining, the shell adopts a steel structure, the lining adopts light polycrystalline fiber heat insulation material, the invention relates to a solar energy tail gas generator, which is fixed with a shell through an anchoring mode, the thickness of a top lining is 0.2mm, the thickness of a side lining is 0.6m, the thickness of a side lining is 0.15m, the distance from an electrode is 0.4m, an observation window with the diameter of 10cm is reserved above the side wall of the shell of a tail gas cover, silicate high-temperature resistant glass is selected as the observation window, a wide-angle high-definition camera is adopted as a camera, the observation window and the camera are used for monitoring the fused state of sand in the tail gas cover, a tail gas treatment system 4 is used for pumping, cooling, purifying and directionally discharging gas generated in the sand curing process, the tail gas treatment system 4 comprises a pumping pump and a tail gas cooling and filtering device, the invention is realized by the technical principle of in-situ glass curing, a diesel generator set is utilized for supplying power, a servo controller and a voltage regulating controller are utilized for controlling the lifting and the power supply of the electrode, the safety discharge is carried out on the gas in the tail gas cover by utilizing the pumping pump and the filter, the single treatable volume is more than 0.5mx0.5mx0.5mx0.5m, the mass of the soil exceeds 200kg, the solidifying operation flow is as follows,
s1: preparing solidification, namely firstly transporting the system to the vicinity of a region to be treated, paving low-melting glass powder on the surface of soil to be treated, mixing scaly conductive graphite powder and additives in proportion to form an initiator, paving the initiator on the surface of the glass powder according to a diagonal line, finally placing a tail gas cover right above the initiator, starting a diesel generator set, checking the parameter display of a system instrument, adjusting a Scott T-type transformer to a voltage grade for outputting a high-grade after the system is displayed normally, and switching a voltage-adjusting controller to manual control;
s2: the method comprises the steps of conducting and starting, controlling the electrode to descend by using a servo controller, inserting a graphite electrode into a starter, observing voltage and current meter display, controlling the output of a Scott T-shaped transformer by using a voltage regulating controller, raising the power supply voltage of the graphite electrode, stopping boosting after the current appears on the meter display electrode, and conducting the starter at the moment;
s3: the air pump is turned on, power operation is adjusted according to the air yield, the air yield is low in the initial temperature rising period, low-power operation is kept, and heat loss is avoided;
s4: the gear switching and the current setting are carried out, the fluctuation of the resistance can occur between the electrodes along with the rise of the temperature, the resistance is smaller, the current is required to be regulated to be large in order to ensure the generation of enough heat, a low-voltage high-current gear is selected, when graphite powder is oxidized and consumed, glass powder is melted and permeated into soil, and when the resistance is increased, the voltage gear is increased and the high-voltage low-current mode is converted;
s5: depth control, wherein the upper soil is gradually melted and softened along with the temperature rise, and the depth of the electrode inserted into the soil downwards is regulated by a servo controller to gradually melt the lower soil until the penetration reaches a preset target;
s6: temperature control, namely, as the temperature of the gas in the tail gas hood rises to more than 800 ℃, the pressure of the gas increases, so that the suction pump reaches the maximum operating power to ensure the negative pressure in the tail gas hood, the heat loss of the system is higher, the heating power also needs to be synchronously increased to ensure the temperature to continuously rise, a low-voltage gear is selected, the electrode current set value is increased, and the input power between electrodes is increased;
s7: and (3) solidifying and cooling, when the melting depth and the temperature reach the expected values and last for a period of time of more than 5 minutes, turning off the power supply of the electrode, continuously working the air pump and the tail gas cooling and filtering device, loosening the electrode clamping piece after the soil in the tail gas hood is cooled to normal temperature, integrally lifting and moving the tail gas hood to the vicinity of the next polluted soil to be treated, turning off all the electric and gas switches of the whole system, and turning off the diesel generator set.
As a further scheme of the invention: the paving area of the low-melting-point glass powder in S1 is 0.5m multiplied by 0.5m, the thickness is 0.1m, the glass point temperature is 400-500 ℃, and the area of the scaly conductive graphite powder is 0.5m multiplied by 0.5m, and the thickness is 0.1m.
As still further aspects of the invention: and S2, heating is carried out along with the conduction of the starter, the resistance between the electrodes is gradually reduced, the current between the electrodes is gradually increased, and the voltage regulating controller is switched into a constant current control automatic mode.
As still further aspects of the invention: and S4, in the whole control process, the voltage gear is adjusted mainly according to the temperature and the resistance change between the electrodes, so that the effective heating power is maintained, and the temperature is increased.
As still further aspects of the invention: and S6, after the temperature meets the expectations, keeping the temperature at 1400 ℃ for a period of time above 5min by adjusting the current set value.
As still further aspects of the invention: and S7, backfilling the melted and solidified polluted soil or moving the soil to a relevant disposal point according to the requirement.
As still further aspects of the invention: the rated output power of the diesel generating set is 300kW; the diesel generator is fixed in the container and can be moved to the treatment site by a forklift or crane.
As still further aspects of the invention: the Scott T-shaped transformer has the capacity of 160KW, 4 gears are arranged, and the maximum output voltage of each gear is 380V, 300V, 200V and 100V respectively.
As still further aspects of the invention: the electrode adopts an oxidation-resistant coating graphite electrode, the diameter of the electrode is 80mm, internal threads of M36×2 are reserved at two ends of the electrode respectively, the electrode is connected through an external thread graphite connecting pin of M36×2, the axial center distance of 4 graphite electrodes is 0.5M, the graphite electrodes are distributed in square shape perpendicular to the ground, and each pair of two graphite electrodes is 1 group of heating load.
As still further aspects of the invention: the thermocouple adopts a type B thermocouple, and the temperature measurement range of the type B thermocouple is normal temperature to 1700 ℃.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.

Claims (10)

1. The utility model provides a glass electrofusion solidification equipment that can in situ treatment harmful solid waste, includes power supply system (1), measurement control system (2), electrofusion heating system (3) and tail gas treatment system (4), its characterized in that: the power supply system (1) comprises a diesel generator set and a container, the measurement control system (2) comprises a servo controller, a voltage regulation controller and a Scott T-shaped transformer, the electric smelting heating system (3) comprises an electrode clamping piece, a graphite electrode, a thermocouple, a tail gas cover, an observation window and a camera, the tail gas treatment system (4) comprises an air pump and a tail gas cooling and filtering device, the solidifying operation flow is as follows,
s1: preparing solidification, namely firstly transporting the system to the vicinity of a region to be treated, paving low-melting glass powder on the surface of soil to be treated, mixing scaly conductive graphite powder and additives in proportion to form an initiator, paving the initiator on the surface of the glass powder according to a diagonal line, finally placing a tail gas cover right above the initiator, starting a diesel generator set, checking the parameter display of a system instrument, adjusting a Scott T-type transformer to a voltage grade for outputting a high-grade after the system is displayed normally, and switching a voltage-adjusting controller to manual control;
s2: the method comprises the steps of conducting and starting, controlling the electrode to descend by using a servo controller, inserting a graphite electrode into a starter, observing voltage and current meter display, controlling the output of a Scott T-shaped transformer by using a voltage regulating controller, raising the power supply voltage of the graphite electrode, stopping boosting after the current appears on the meter display electrode, and conducting the starter at the moment;
s3: the air pump is turned on, power operation is adjusted according to the air yield, the air yield is low in the initial temperature rising period, low-power operation is kept, and heat loss is avoided;
s4: the gear switching and the current setting are carried out, the fluctuation of the resistance can occur between the electrodes along with the rise of the temperature, the resistance is smaller, the current is required to be regulated to be large in order to ensure the generation of enough heat, a low-voltage high-current gear is selected, when graphite powder is oxidized and consumed, glass powder is melted and permeated into soil, and when the resistance is increased, the voltage gear is increased and the high-voltage low-current mode is converted;
s5: depth control, wherein the upper soil is gradually melted and softened along with the temperature rise, and the depth of the electrode inserted into the soil downwards is regulated by a servo controller to gradually melt the lower soil until the penetration reaches a preset target;
s6: temperature control, namely, as the temperature of the gas in the tail gas hood rises to more than 800 ℃, the pressure of the gas increases, so that the suction pump reaches the maximum operating power to ensure the negative pressure in the tail gas hood, the heat loss of the system is higher, the heating power also needs to be synchronously increased to ensure the temperature to continuously rise, a low-voltage gear is selected, the electrode current set value is increased, and the input power between electrodes is increased;
s7: and (3) solidifying and cooling, when the melting depth and the temperature reach the expected values and last for a period of time of more than 5 minutes, turning off the power supply of the electrode, continuously working the air pump and the tail gas cooling and filtering device, loosening the electrode clamping piece after the soil in the tail gas hood is cooled to normal temperature, integrally lifting and moving the tail gas hood to the vicinity of the next polluted soil to be treated, turning off all the electric and gas switches of the whole system, and turning off the diesel generator set.
2. The glass electrofusion curing apparatus capable of in-situ treatment of hazardous solid waste according to claim 1, wherein: the paving area of the low-melting-point glass powder in the S1 is 0.5m multiplied by 0.5m, the thickness is 0.1m, the glass point temperature is 400-500 ℃, and the area of the scaly conductive graphite powder is 0.5m multiplied by 0.5m, and the thickness is 0.1m.
3. The glass electrofusion curing apparatus capable of in-situ treatment of hazardous solid waste according to claim 1, wherein: in the step S2, the starter is heated after being conducted, the resistance between the electrodes is gradually reduced, the current between the electrodes is gradually increased, and the voltage regulating controller is switched into a constant current control automatic mode.
4. The glass electrofusion curing apparatus capable of in-situ treatment of hazardous solid waste according to claim 1, wherein: in the S4, the whole control process mainly adjusts the voltage gear according to the temperature and the resistance change between the electrodes, so that the effective heating power is maintained, and the temperature is increased.
5. The glass electrofusion curing apparatus capable of in-situ treatment of hazardous solid waste according to claim 1, wherein: and after the temperature accords with the expectation in the step S6, the temperature is kept stable at 1400 ℃ for a period of time more than 5min by adjusting the current set value.
6. The glass electrofusion curing apparatus capable of in-situ treatment of hazardous solid waste according to claim 1, wherein: and in the step S7, backfilling the melted and solidified polluted soil or moving the polluted soil to a relevant disposal point according to the requirement.
7. The glass electrofusion curing apparatus capable of in-situ treatment of hazardous solid waste according to claim 1, wherein: the rated output power of the diesel generating set is 300kW; the diesel generator is fixed in the container and can be moved to the treatment site by a forklift or crane.
8. The glass electrofusion curing apparatus capable of in-situ treatment of hazardous solid waste according to claim 1, wherein: the Scott T-shaped transformer has the capacity of 160KW, 4 gears are arranged, and the maximum output voltage of each gear is 380V, 300V, 200V and 100V respectively.
9. The glass electrofusion curing apparatus capable of in-situ treatment of hazardous solid waste according to claim 1, wherein: the electrode adopts an oxidation-resistant coating graphite electrode, the diameter of the electrode is 80mm, internal threads of M36×2 are reserved at two ends of the electrode respectively, the electrode is connected through an external thread graphite connecting pin of M36×2, the axial center distance of the 4 graphite electrodes is 0.5M, the graphite electrodes are distributed in square shape perpendicular to the ground, and each pair of two graphite electrodes is 1 group of heating load.
10. The glass electrofusion curing apparatus capable of in-situ treatment of hazardous solid waste according to claim 1, wherein: the thermocouple adopts a type B thermocouple, and the temperature measurement range of the type B thermocouple is normal temperature to 1700 ℃.
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