CN214108256U - Solid waste treatment device - Google Patents

Abstract

The utility model discloses a solid waste treatment device, this processing apparatus includes: the mixing device is used for uniformly mixing the solid waste and the slagging agent according to a set proportion to obtain a mixture; the feeding device is used for continuously uniformly and uniformly blanking the mixed material to the plasma melting device; the plasma melting device is used for carrying out transfer type direct current plasma high-temperature melting treatment on the mixture so as to crack and recombine the mixture, and obtain molten glass liquid, molten alloy metal liquid and plasma furnace tail gas; the tail gas treatment device is used for continuously collecting and purifying the tail gas of the plasma furnace into clean tail gas; a glassy product collection device for continuously collecting and cooling molten glass to obtain a plurality of glass products; and the crude alloy collecting device is used for periodically collecting and cooling the alloy molten metal to obtain corresponding alloy metal. Solves the problems of high cost, large occupied area, high potential safety hazard, secondary pollution and long treatment period of the prior treatment technology.

Description

Solid waste treatment device

Technical Field

The utility model relates to a solid waste handles technical field, more specifically relates to a solid waste processing apparatus.

Background

With the increasing severity of environmental pollution, the hazardous solid wastes have wide sources and a wide variety, and have the characteristics of toxicity, corrosivity, inflammability, reactivity, direct combustion and release of toxic substances and the like. Carcinogenic gases such as dioxin and the like are easily generated by using the traditional incineration treatment process, so that the atmospheric pollution is caused, and the human health is threatened. Meanwhile, elements such as heavy metals and halogens contained in the hazardous solid waste exceed the bearable range of the traditional incineration process, so that the hazardous solid waste treated by the traditional incineration process cannot meet increasingly severe environmental protection requirements and is harmful to health and safety. The landfill treatment technology has high cost, large occupied area and extremely low treatment efficiency, and the released toxicity is easy to exceed the standard to cause serious secondary pollution of land resources and underground water resources and long-term damage to the environment.

In summary, the existing treatment technology of dangerous solid wastes has the problems of high cost, large occupied area, high potential safety hazard, secondary pollution, long treatment period and the like. Therefore, a system and a method for harmless treatment of hazardous solid waste are needed to achieve the purpose of harmless and resource utilization of hazardous solid waste.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solid waste processing apparatus to the above-mentioned problem that exists among the prior art, solved that prior art exists with high costs, take up an area of big, the potential safety hazard is high, secondary pollution and the problem of processing cycle length.

According to a first aspect of the embodiments of the present invention, there is provided a solid waste treatment apparatus, comprising: the device comprises a mixing device, a feeding device, a plasma melting device, a tail gas treatment device, a glassy product collecting device and a crude alloy collecting device;

the mixing device is used for uniformly mixing the solid waste and the slagging constituent according to a set proportion to obtain a mixture;

the feeding device is respectively connected with the mixing device and the plasma melting device and is used for continuously uniformly and uniformly blanking the mixture to the plasma melting device;

the plasma melting device is used for carrying out transfer type direct current plasma high-temperature melting treatment on the mixture to crack and recombine the mixture to obtain molten glass liquid, molten alloy metal liquid and plasma furnace tail gas;

the tail gas treatment device is connected with the tail gas output end of the plasma melting device and is used for continuously collecting and purifying the tail gas of the plasma furnace into clean tail gas;

the glassy state product collecting device is connected with a glass liquid output end of the plasma melting device and is used for continuously collecting and cooling the glass liquid to obtain a plurality of glass products;

the coarse alloy collecting device is connected with an alloy metal liquid output end of the plasma melting device and used for periodically collecting and cooling the alloy metal liquid to obtain corresponding alloy metal.

Optionally, the plasma melting apparatus comprises: a plasma melting furnace, a first hollow graphite electrode, a second hollow graphite electrode,

the first hollow graphite electrode is used as a negative electrode and located at the top of the plasma melting furnace, the second hollow graphite electrode is used as a positive electrode and located at the bottom of the plasma melting furnace, plasma process gas enters the plasma melting furnace through the hollow structure of the first hollow graphite electrode, and the plasma process gas is ionized to generate high-temperature plasma when voltage is applied to the two ends of the first hollow graphite electrode and the second hollow graphite electrode.

Optionally, the plasma melting apparatus further comprises: a feed inlet and an electrically conductive refractory material,

the feed inlet, the tail gas output end, the molten glass output end and the alloy molten metal output end are positioned on the side wall of the plasma melting furnace,

the conductive refractory material is positioned at the bottom in the plasma melting furnace, and the plasma melting furnace adopts a water cooling system to cool the conductive refractory material so as to reduce the erosion of the molten glass and the plasma to the plasma melting furnace.

Optionally, the exhaust gas treatment device comprises: a combustion chamber, a quench tower, a bag filter, a washing tower and a draught fan,

after the tail gas of the plasma furnace is treated by the combustion chamber, the quench tower, the bag filter and the washing tower in turn, the tail gas of the plasma furnace is purified into clean tail gas,

and after the tail gas continuous monitoring system tests to be qualified, the induced draft fan discharges the clean tail gas into the atmosphere.

Optionally, the bag filter is used for removing secondary fly ash, and the washing tower stores an alkaline solution to absorb acid gas in the tail gas of the plasma furnace.

Optionally, the plasma furnace tail gas is in high temperature burning in the combustion chamber, after the quench tower cooling, will plasma furnace tail gas is sent into adsorption equipment to absorb plasma furnace tail gas is in the dioxin that high temperature burning in-process produced in the combustion chamber.

Optionally, the mixture further comprises: a reducing agent,

determining the types and the amounts of the slag former and the reducing agent according to the chemical components of the solid waste.

Optionally, the solid waste comprises: organic matter, inorganic matter and inactive metal,

and decomposing the organic matter into the tail gas of the plasma furnace by using the slagging agent and the reducing agent through the high-temperature plasma, melting and vitrifying the inorganic matter into the molten glass, and reducing the inactive metal into a metal simple substance.

Optionally, the plasma high-temperature melting processing temperature of the plasma melting device comprises: 5000 to 10000 degrees centigrade, the process temperature of the combustion chamber comprises: 1100 ℃, and cooling the tail gas of the plasma furnace to 180-200 ℃ by the quenching tower.

Optionally, the solid waste treatment apparatus further comprises:

and the waste heat boiler is positioned between the combustion chamber and the quenching tower and is used for producing steam by using the waste heat of the tail gas of the plasma furnace.

According to the utility model discloses solid waste processing apparatus, plasma melting device carries out the high-temperature melting of transfer type direct current plasma to the mixture and handles and make mixture schizolysis and reorganization, obtain the glass liquid of fuse state, the alloy metal liquid of fuse state and plasma furnace tail gas, tail gas processing apparatus constantly collects and purifies plasma furnace tail gas and be clean tail gas, glassy state result collection device constantly collects and cools off the glass liquid in order to obtain multiple glass product, thick alloy collection device regularly collects and cools off the alloy metal liquid in order to obtain corresponding alloy metal, realize the innocent treatment and the recovery resources to dangerous solid waste, good economic benefits has, social and environmental protection benefit.

In addition, the solid waste treatment device provided by the embodiment of the utility model is used for treating solid waste, and has the advantages of high automation degree, flexible operation (both blowing-in and blowing-out are easy to operate), low labor intensity of workers, low noise, friendly working environment and short treatment period; the traditional incineration treatment process and landfill technology are not needed, the occupied area is saved, the maintenance cost is low, and secondary pollution to land resources and underground water resources is avoided.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings.

Fig. 1 shows a schematic structural view of a solid waste treatment apparatus according to an embodiment of the present invention.

Fig. 2 shows a block diagram of a solid waste treatment apparatus according to an embodiment of the present invention.

Fig. 3 shows a schematic structural diagram of a plasma melting apparatus according to an embodiment of the present invention.

Detailed Description

The invention will be described in more detail below with reference to the accompanying drawings. Like components are denoted by like reference numerals throughout the various figures. For purposes of clarity, the various features in the drawings are not necessarily to scale. In addition, certain well known components may not be shown.

Numerous specific details of the invention are set forth in the following description in order to provide a more thorough understanding of the invention. However, as will be understood by those skilled in the art, the present invention may be practiced without these specific details.

Fig. 1 shows a schematic structural view of a solid waste treatment apparatus according to an embodiment of the present invention. Fig. 2 shows a block diagram of a solid waste treatment apparatus according to an embodiment of the present invention.

As shown in fig. 1 and 2, a solid waste treatment apparatus according to an embodiment of the present invention includes: a mixing device 110, a feeding device 120, a plasma melting device 130, a tail gas treatment device 140, a glassy product collection device 150 and a crude alloy collection device 160.

And the mixing device 110 is used for uniformly mixing the solid waste and the slagging agent according to a set proportion to obtain a mixture. In some embodiments, the mix further comprises: a reducing agent. The mixing device 110 is also used for uniformly mixing the solid waste, the slagging agent and the reducing agent according to a set proportion to obtain a mixture. It should be noted that the types and amounts of the slag former and the reducing agent are determined according to the chemical composition of the solid waste. After analyzing the chemical components of the solid waste and determining the types and the usage amounts of the slag former and the reducing agent, aiming at forming glass melt with low melting point and low viscosity, considering the usage amounts and the unit prices of the slag former and the reducing agent, uniformly mixing the solid waste (i.e. ash slag and the like), the slag former and the reducing agent according to a set proportion to form a mixture, and continuously feeding the mixture into the plasma melting device 130 at a constant speed through conveying equipment such as a belt pulley and the like; the residual hazardous solid waste and the like are generally mixed uniformly in a weight ratio of 70 to 85% of the residual hazardous solid waste and about 10% of sand (if necessary). It should be noted that the solid waste treatment device in the embodiment of the present invention can treat various dangerous solid wastes, and has no requirement on the calorific value of the dangerous solid wastes. Is particularly suitable for disposing the dangerous solid waste with lower heat value and containing heavy metal (such as electroplating sludge, dangerous solid waste incineration bottom slag) or precious metal (such as waste catalyst).

The embodiment of the utility model provides an in solid waste processing apparatus can handle 16489 tons of electric arc furnace dust and argon oxygen decarburization furnace dust a year, can also handle 3556 tons of rolling skin, handles 20045 tons of solid waste one year in total. The slag former used is, for example, lime, the proportion of lime to dust being 3 to 6 kg per ton of dust. The reducing agent used is, for example, coke, the coke to dust ratio being about 185 kg coke per ton dust.

And the feeding device 120 is respectively connected with the mixing device 110 and the plasma melting device 130 and is used for continuously uniformly and uniformly blanking the mixed materials to the plasma melting device 130.

And the plasma melting device 130 is used for carrying out transfer type direct current plasma high-temperature melting treatment on the mixture so as to crack and recombine the mixture, and obtain molten glass liquid, molten alloy metal liquid and plasma furnace tail gas. The solid waste includes: organic, inorganic and inert metals. Decomposing organic matters into plasma furnace tail gas by using a slagging agent and a reducing agent and high-temperature plasma, melting and vitrifying the inorganic matters into glass liquid, and reducing the inactive metal into a metal simple substance. It should be noted that the plasma melting device 130 can effectively eliminate macromolecular halogen-containing organic substances (such as polychlorinated biphenyl) in the hazardous solid waste, and becomes an effective supplement for the hazardous solid waste disposal of the conventional rotary kiln.

Fig. 3 shows a schematic structural diagram of a plasma melting apparatus according to an embodiment of the present invention. As shown in fig. 1 and 3, the plasma fusing device 130 includes: a plasma melting furnace 131, a feed inlet 132, a tail gas output 133, a molten glass output 134, an alloy molten metal output 135, a first hollow graphite electrode 136, a second hollow graphite electrode 137, and an electrically conductive refractory 138.

A first hollow graphite electrode 136 as a cathode at the top of the plasma furnace 131 and a second hollow graphite electrode 137 as an anode at the bottom of the plasma furnace 131, a plasma process gas (e.g., N)₂) Enters the plasma melting furnace 131 through the hollow structure of the first hollow graphite electrode 136, the firstThe hollow graphite electrode 136 and the second hollow graphite electrode 137 ionize the plasma process gas to generate high temperature plasma of 5000 to 10000 degrees celsius when a voltage (e.g., 200V dc voltage) is applied across them. The mixture floating on the surface of the molten glass in the plasma melting furnace 131 is rapidly melted by the high-temperature plasma of 5000 to 10000 ℃, inorganic matters in the molten material form the molten glass, the molten glass has electrical conductivity, and the generated resistance heat and the plasma together maintain the temperature of the molten liquid (the molten glass and the molten alloy metal) in the plasma melting furnace 131 to be about 1600 ℃ or higher. Most of the non-active metals in the mixture are reduced into metal simple substances, the metal simple substances form alloy metal liquid, and the glass liquid and the alloy metal liquid are layered in the plasma melting furnace 131 due to different specific gravities. The plasma melting furnace 131 is operated at a slight negative pressure, and the pressure in the plasma melting furnace 131 is about-50 to-10 Pa.

It should be noted that when a voltage (e.g., 200V dc voltage) is applied across the first hollow graphite electrode 136 and the second hollow graphite electrode 137, the plasma process gas is ionized to generate a transfer-type dc high-temperature plasma, which has high thermal efficiency, low noise, stable arc light, and is not easy to break, thus being beneficial to power supply and power grid stabilization, and avoiding the formation of a magnetic field/mixed current in the plasma melting furnace 131; the transfer type dc high temperature plasma has higher efficiency, allows current to pass through (and heat) the material, not just surface heating, and produces less secondary ash.

The embodiments of the present invention dispose of hazardous solid waste using first hollow graphite electrode 136 and second hollow graphite electrode 137 (rather than metal electrodes). Compared with a metal electrode, the graphite electrode has obvious advantages, and mainly comprises the following advantages:

(1) the energy is saved by about 10 percent compared with the metal electrode, because the graphite electrode does not need water cooling, and the metal electrode usually needs water cooling and air cooling protection.

(2) The graphite electrode is not afraid of the corrosion of elements such as chlorine, fluorine, bromine, sulfur and the like in dangerous solid waste.

(3) The graphite electrode is safe (there is no risk of water leakage).

(4) The graphite electrode does not need maintenance.

(5) The graphite electrode is cheap and can be purchased at home without depending on the spare parts of the patent of a specific supplier.

(6) Graphite electrode gas consumption is only about 10% of metal electrode, and what arouse carries ash (secondary ash) less, and this means the utility model discloses solid waste processing apparatus's user can save exhaust system's equipment investment to the cost of handling the secondary ash also correspondingly reduces.

(7) Using N₂The generation of NOx in the plasma furnace 131, which is the plasma process gas of the graphite electrode (instead of compressed air), is almost zero, so that the exhaust system does not need to be equipped with expensive processing equipment for selective catalytic reduction.

The feed port 132, the off-gas output port 133, the molten glass output port 134, and the molten alloy metal output port 135 are located on the side wall of the plasma melting furnace 131. The conductive refractory 138 is located at the bottom of the plasma melting furnace 131, and the plasma melting furnace 131 adopts a water cooling system to cool the conductive refractory 138, so as to reduce erosion of molten glass and plasma to the plasma melting furnace 131.

The embodiment of the utility model provides an external diameter of plasma melting furnace 131 is 4.7m, the diameter of first cavity graphite electrode 136 is 300mm, the installation power of plasma melting furnace 131 is 7MW, the power of use is 5.6MW, the thermal efficiency of plasma melting furnace 131 is 72%, maximum current is 20000A, every processing a ton of dust plasma melting furnace 131 power consumption is 1580 to 1648kWh, every processing a ton of the consumption of the first cavity graphite electrode 136 of dust is 2.3kg (1.4 kg/MWh).

And the tail gas treatment device 140 is connected with the tail gas output end 133 of the plasma melting device 130 and is used for continuously collecting and purifying the tail gas of the plasma furnace into clean tail gas. The exhaust gas treatment device 140 includes: a combustion chamber 141, a quenching tower 142, a bag filter 143, a washing tower 144 and an induced draft fan 145. The plasma furnace tail gas is treated by the combustion chamber 141, the quenching tower 142, the bag filter 143 and the washing tower 144 in sequence, and then purified into clean tail gas. After passing the test of the tail gas continuous monitoring system 146, the induced draft fan 145 discharges the clean tail gas into the atmosphere.

Specifically, the plasma furnace tail gas is delivered to the combustion chamber 141 through the tail gas output end 133, and CO and CH are delivered at a high temperature of 1100 degrees celsius₄And the combustible gas is completely oxidized. The exhaust gas from the plasma furnace from the combustion chamber 141 is sent to a quenching tower 142 to be rapidly cooled to 180 to 200 ℃. In some embodiments, after the plasma furnace off-gas is burned at a high temperature in the combustion chamber 141 and the quench tower 142 is cooled, the plasma furnace off-gas is sent to an adsorption device (activated carbon) to absorb dioxin generated during the high temperature combustion of the plasma furnace off-gas in the combustion chamber 141. The bag filter 143 is used to remove secondary fly ash generated during the treatment of the plasma furnace off-gas in the combustion chamber 141 and the quenching tower 142 (where the secondary fly ash includes non-melted fly ash carried by the plasma furnace off-gas, volatilized salts, injected activated carbon, etc.). The secondary fly ash in the plasma furnace tail gas after passing through the bag filter 143 is captured, so that the plasma furnace tail gas becomes clean. The scrubber 144 stores an alkaline solution (e.g., NaOH solution) to absorb the acid gas (the acid gas includes SO contained in the off-gas of the plasma furnace)₂And a small amount of unabsorbed HCl gas) to obtain a clean off-gas free of dust and acid. After passing the test of the tail gas continuous monitoring system 146, the induced draft fan 145 conveys the clean tail gas to the tail end chimney and discharges the clean tail gas into the atmosphere.

In some embodiments, the solid waste treatment apparatus further comprises: and a waste heat boiler (not shown) located between the combustion chamber 141 and the quenching tower 142 for generating steam using waste heat of the plasma furnace off-gas. Dioxin in the solid waste is almost completely destroyed by high-temperature plasma, ultraviolet rays generated by the high-temperature plasma and molten glass liquid, meanwhile, most heavy metals are fixed in the molten glass liquid, and a small part of heavy metals enter the combustion chamber 141 by carrying or volatilizing. The flow of the plasma furnace tail gas generated by the plasma melting furnace 131 is very low, and about 120-300 Nm is generated per ton of the input fly ash³The temperature of the plasma furnace tail gas is about 1200 ℃. The processing temperature of the combustion chamber 141 is 1100 ℃, and the passing residual of the tail gas of the plasma furnace at 1100 DEG CThe temperature after the hot boiler is reduced to 500 ℃, and the heat is utilized to generate steam. The tail gas from the combustion chamber 141 will then be rapidly cooled to 180 to 200 degrees celsius in the quench tower 142. The plasma furnace off-gas is then sent to an adsorption device (activated carbon) to absorb dioxin generated during the high temperature combustion of the plasma furnace off-gas in the combustion chamber 141. Then, the plasma furnace exhaust gas is sent to a bag filter 143 to clean the secondary fly ash (where the secondary fly ash includes non-melted fly ash carried by the plasma furnace exhaust gas, volatilized salt, injected activated carbon, etc.), and sent to a washing tower 144 to absorb the acid gas (where the acid gas includes SO contained in the plasma furnace exhaust gas) in the plasma furnace exhaust gas₂And a small amount of unabsorbed HCl gas). The secondary fly ash may typically account for 1-7% of the input fly ash. In order to reduce the final disposal amount of the secondary fly ash, it is necessary to precisely control the pressure inside the plasma melting furnace 131 while re-melting part of the secondary fly ash; this makes it possible to control the secondary fly ash to a final level of about 1 to 3% of the input residue (the specific value to be determined depends on the composition of the input residue).

And a glassy product collection device 150 connected to the molten glass output end 134 of the plasma melting device 130 for continuously collecting and cooling molten glass to obtain a plurality of glass products. For example, the molten glass flows into a mold or water quench tank or is slowly cooled via a delivery device to obtain a different glass product. The produced glass product is compact and stable, and is a candidate material for roadbed materials and heat insulation materials.

And a coarse alloy collecting device 160 connected to the molten alloy output 135 of the plasma melting device 130 for periodically collecting and cooling the molten alloy to obtain the corresponding molten alloy, and opening the molten alloy output 135 usually once every 15 to 60 days after the continuous feeding. The alloy metal is sent to the next family for refining. In some embodiments, the molten alloy metal discharge frequency was 5.6 hours/time and the collected alloy product was 7030 tons/year. Recovery and related operating parameters vary depending on product price and daily expenses, and it has been estimated since 1991 that recovery of stainless steel dust, rolled steel sheet, etc. has created a value of about $ 1.9 billion.

According to the utility model discloses solid waste processing apparatus, plasma melting device carries out the high-temperature melting of transfer type direct current plasma to the mixture and handles and make mixture schizolysis and reorganization, obtain the glass liquid of fuse state, the alloy metal liquid of fuse state and plasma furnace tail gas, tail gas processing apparatus constantly collects and purifies plasma furnace tail gas and be clean tail gas, glassy state result collection device constantly collects and cools off the glass liquid in order to obtain multiple glass product, thick alloy collection device regularly collects and cools off the alloy metal liquid in order to obtain corresponding alloy metal, realize the innocent treatment and the recovery resources to dangerous solid waste, good economic benefits has, social and environmental protection benefit.

In addition, the solid waste treatment device provided by the embodiment of the utility model is used for treating solid waste, and has the advantages of high automation degree, flexible operation (both blowing-in and blowing-out are easy to operate), low labor intensity of workers, low noise, friendly working environment and short treatment period; the traditional incineration treatment process and landfill technology are not needed, the occupied area is saved, the maintenance cost is low, and secondary pollution to land resources and underground water resources is avoided.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

In accordance with the embodiments of the present invention as set forth above, these embodiments are not exhaustive and do not limit the invention to the precise embodiments described. The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any person skilled in the art can make various changes, modifications, etc. without departing from the scope of the present invention. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best utilize the invention and its various embodiments with various modifications as are suited to the particular use contemplated.

Claims (7)

1. A solid waste treatment apparatus, characterized in that the solid waste treatment apparatus comprises: the device comprises a mixing device, a feeding device, a plasma melting device, a tail gas treatment device, a glassy product collecting device and a crude alloy collecting device;

the mixing device is used for uniformly mixing the solid waste and the slagging constituent according to a set proportion to obtain a mixture;

the feeding device is respectively connected with the mixing device and the plasma melting device and is used for continuously uniformly and uniformly blanking the mixture to the plasma melting device;

the plasma melting device is used for carrying out transfer type direct current plasma high-temperature melting treatment on the mixture to crack and recombine the mixture to obtain molten glass liquid, molten alloy metal liquid and plasma furnace tail gas;

the tail gas treatment device is connected with the tail gas output end of the plasma melting device and is used for continuously collecting and purifying the tail gas of the plasma furnace into clean tail gas;

the glassy state product collecting device is connected with a glass liquid output end of the plasma melting device and is used for continuously collecting and cooling the glass liquid to obtain a plurality of glass products;

the coarse alloy collecting device is connected with an alloy metal liquid output end of the plasma melting device and is used for periodically collecting and cooling the alloy metal liquid to obtain corresponding alloy metal; wherein the plasma melting device comprises: the plasma melting furnace comprises a plasma melting furnace, a first hollow graphite electrode and a second hollow graphite electrode, wherein the first hollow graphite electrode is used as a negative electrode and is positioned at the top of the plasma melting furnace, the second hollow graphite electrode is used as a positive electrode and is positioned at the bottom of the plasma melting furnace, and the first hollow graphite electrode and the second hollow graphite electrode are used for ionizing plasma process gas to generate high-temperature plasma when voltages are applied to two ends of the first hollow graphite electrode and the second hollow graphite electrode.

2. The solid waste treatment apparatus of claim 1, wherein the plasma melting apparatus further comprises: a feed inlet and an electrically conductive refractory material,

the feed inlet, the tail gas output end, the molten glass output end and the alloy molten metal output end are positioned on the side wall of the plasma melting furnace,

the conductive refractory material is positioned at the bottom in the plasma melting furnace, and the plasma melting furnace adopts a water cooling system to cool the conductive refractory material so as to reduce the erosion of the molten glass and the plasma to the plasma melting furnace.

3. The solid waste treatment plant of claim 2, wherein the tail gas treatment plant comprises: a combustion chamber, a quench tower, a bag filter, a washing tower and a draught fan,

the combustion chamber, the quench tower, the bag filter, the washing tower and the induced draft fan are connected in sequence.

4. The solid waste treatment apparatus of claim 3, wherein the bag filter is used to remove secondary fly ash, and the scrubber stores an alkaline solution therein to absorb acid gases in the plasma furnace off-gas.

5. The solid waste treatment plant of claim 4, wherein the tail gas treatment plant further comprises: and the adsorption device is used for absorbing the tail gas of the plasma furnace after the high-temperature combustion in the combustion chamber and the cooling of the quench tower, wherein the tail gas of the plasma furnace is in dioxin generated in the high-temperature combustion process in the combustion chamber.

6. The solid waste treatment apparatus of claim 5, wherein the solid waste comprises: organic, inorganic and inert metals.

7. The solid waste treatment apparatus of claim 6, further comprising:

and the waste heat boiler is positioned between the combustion chamber and the quenching tower and is used for producing steam by using the waste heat of the tail gas of the plasma furnace.

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