CN113137617A - Burn burning furnace suitable for useless processing of fluorine-containing danger - Google Patents
Burn burning furnace suitable for useless processing of fluorine-containing danger Download PDFInfo
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- CN113137617A CN113137617A CN202110395368.2A CN202110395368A CN113137617A CN 113137617 A CN113137617 A CN 113137617A CN 202110395368 A CN202110395368 A CN 202110395368A CN 113137617 A CN113137617 A CN 113137617A
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- oxygen supply
- oxygen
- hearth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
- F23L7/007—Supplying oxygen or oxygen-enriched air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention discloses an incinerator suitable for treating fluorine-containing hazardous waste, which comprises an incinerator body, wherein a smoke outlet is formed in the top of the incinerator body, a hearth is arranged at the bottom of the incinerator body, an ash discharge port is formed in the middle of the hearth, a vertical rotary main shaft is arranged on the hearth, a stirring arm rotating by taking the rotary main shaft as a rotary shaft is arranged on the rotary main shaft, a support arm extending towards the hearth is arranged on the stirring arm, a bottom oxygen supply pipe is arranged in the hearth, a first oxygen supply head and/or a second oxygen supply head are detachably connected to the hearth, oxygen supply channels respectively communicated with the bottom oxygen supply pipe and the inside of the incinerator body are respectively arranged on the first oxygen supply head and the second oxygen supply head, the hearth, the first oxygen supply head and the second oxygen supply head are made of corrosion-resistant materials, and corrosion-resistant materials are covered on the surfaces of the stirring arm and the support arm. The invention has long service cycle, low maintenance frequency and low operation and maintenance cost.
Description
Technical Field
The invention relates to the technical field of hazardous waste treatment, in particular to an incinerator suitable for fluorine-containing hazardous waste treatment.
Background
With the rapid development of economy in China, the generation amount of dangerous waste, namely hazardous waste, is increased rapidly. In view of the potential environmental risks and the threat to human health, the danger of waste becomes one of the major environmental problems facing China. The hazardous waste incineration method has the advantages that toxic and harmful organic waste in hazardous waste can be effectively destroyed through incineration, the volume and the quality of the waste are reduced, the final safe disposal of the waste is facilitated, and the hazardous waste reduction and harmless technology is the most rapid and effective technology.
The existing dangerous waste materials are usually incinerated through a rotary kiln, and the dangerous waste materials are sufficiently incinerated by utilizing the rotary vibration of the rotary kiln. However, one of the hazardous wastes contains fluorine which has extremely strong corrosivity, and acid gas with strong corrosivity, especially fluoride such as HF, can be generated in the incineration process. If utilize the rotary kiln to burn fluorine-containing danger useless, the refractory material layer of rotary kiln, insulating layer, heat preservation are not hard up easily at the rotational vibration in-process, produce gas pocket and little crack clearance, meet strong corrosive gas in high temperature, and the corrosion rate is extremely fast, appears droing easily. Because the whole inside of the rotary kiln is contacted with the fluorine-containing hazardous waste, the rotary kiln needs to be comprehensively maintained and replaced in a very short time. This results in a short life cycle, high maintenance frequency and high operation and maintenance costs for the rotary kiln.
For example, a "hazardous waste rotary kiln incineration process" disclosed in chinese patent literature, whose publication No. CN112361351A, the hazardous waste rotary kiln includes a cylinder, two ends of the cylinder are respectively provided with a kiln head cover and a kiln tail cover which are connected in a rotating and sealing manner, the lower part of the kiln tail cover is provided with a slag hole, the kiln head cover is cylindrical, the side wall of the kiln head cover is provided with a main air hole and an auxiliary air hole, the main air hole is located at the top of the kiln head cover, the main air hole and the auxiliary air hole are not on the same circumferential line of the kiln head cover, the main air hole is arranged close to the cylinder, and the auxiliary air hole is arranged far from one side of the cylinder; putting the hazardous waste into a barrel for incineration, and after the temperature in the barrel rises to 1000-1150 ℃, supplying air into the kiln hood from the main air hole and the auxiliary air hole, wherein the air speeds of the main air hole and the auxiliary air hole are consistent; after the hazardous waste is incinerated, the ash and slag are led out from the slag outlet. The invention utilizes the rotary kiln to burn hazardous waste, and has the defects that as the rotary kiln is a dynamic rotary vibration kiln, a refractory material layer, a heat insulation layer and a heat insulation layer are easy to loosen, generate air holes and small crack gaps in the rotary vibration process, and the kiln is easy to be strongly corroded by gas to fall off when burning the fluorine-containing hazardous waste, the kiln can not be used continuously quickly, frequent maintenance and replacement are needed, and the operation and maintenance cost is high.
Disclosure of Invention
The invention aims to solve the problems of short service cycle, high maintenance frequency and high operation and maintenance cost of a hazardous waste incineration device in the prior art, and provides the incinerator suitable for treating fluorine-containing hazardous waste, which is long in service cycle, low in maintenance frequency and low in operation and maintenance cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an burn burning furnace suitable for useless processing of fluorine-containing danger, includes the furnace body, and the furnace body top is equipped with the outlet flue, and the furnace body bottom is equipped with the hearth, and the hearth middle part is equipped with the ash discharge mouth, is equipped with vertical rotatory main shaft on the hearth, is equipped with on the rotatory main shaft to use it as the rotatory rabbling arm of rotation axis, is equipped with the support arm that extends to the hearth on the rabbling arm, be equipped with the bottom oxygen supply pipe in the hearth, can dismantle on the hearth and be connected with first apparatus oxygen suppliment head and/or second apparatus oxygen suppliment head, all be equipped with respectively on first apparatus oxygen suppliment head and the second apparatus oxygen suppliment head and feed through the inside oxygen suppliment passageway of bottom oxygen supply pipe and furnace body, hearth, first apparatus oxygen suppliment head and second apparatus oxygen suppliment head are made by corrosion-resistant material, rabbling arm and support arm surface covering have corrosion-resistant material.
The invention is characterized in that the fluorine-containing hazardous waste incinerator is set as a static incinerator, the incinerator body and the oxygen supply component at the bottom are fixed, the incinerator body and the oxygen supply component at the bottom are not easy to loosen or generate gaps in the incineration process, the corrosion speed is delayed, the service cycle is long, the maintenance frequency is low, and the cost is low; the incinerator is provided with a rotary stirring arm and a support arm for pushing fluorine-containing hazardous wastes to rotate, the stirring arm extends along the radial direction, the bottom of the incinerator is provided with a plurality of support arms for pushing the fluorine-containing hazardous wastes to spirally move from the circumference to the circle center on a hearth, the fluorine-containing hazardous wastes are gradually dried and pyrolyzed to be incinerated into ash and discharged from an ash discharge port in the moving process, and the fully incinerated smoke is discharged from a smoke outlet at the top; combustion air is introduced from the bottom to supply oxygen, the combustion air is firstly introduced into the bottom oxygen supply pipe and then uniformly supplied with oxygen at the bottom of the furnace body through a plurality of oxygen supply heads, the bottom oxygen supply pipe is arranged in the hearth, the bottom oxygen supply pipe cannot be corroded in the incineration process, only the hearth and the oxygen supply heads are in contact with fluorine-containing hazardous waste, the hearth and the oxygen supply heads are used as corrosion-resistant components, the corrosion speed is slow, and the oxygen supply heads are detachably connected to the hearth, so that the oxygen supply heads are very convenient to replace and maintain; the hearth is preferably made of castable, and when the hearth is corroded and thinned after being used for a long time, the hearth only needs to be poured to the original thickness.
Preferably, the bottom oxygen supply pipe comprises a plurality of annular pipes which are sequentially sleeved from inside to outside, and a plurality of first oxygen supply heads and/or second oxygen supply heads are distributed on each annular pipe.
The annular pipe ensures the oxygen charging and distributing in the circumferential direction of the hearth, and the multiple annular pipes ensure the oxygen charging and distributing in the radial direction of the hearth and provide guarantee for independent oxygen supply in different areas.
Preferably, the support arms are correspondingly arranged between the adjacent annular tubes.
The support arm is prevented from interfering with the oxygen supply head protruding from the upper part of the annular tube when rotating, and damage is avoided.
Preferably, each annular tube is supplied with oxygen independently.
By independently supplying oxygen to each annular pipe, the oxygen supply amount at different radial positions can be conveniently adjusted, for example, the oxygen demand of a pyrolysis zone close to the periphery is less, the oxygen content of the outer annular pipe can be reduced, and the oxygen demand of an incineration zone close to the center is more, so that the oxygen content of the inner annular pipe is increased.
Preferably, the first oxygen supply head is a cylinder with a sealed top, and a first oxygen supply hole is formed in the wall of the cylinder.
The apparatus is characterized in that the oxygen supply head can have various forms, the first oxygen supply head mainly plays an oxygen distribution role, combustion-supporting air is discharged from the annular pipe and is supplied with oxygen to the fluorine-containing danger waste through the first oxygen supply holes in the barrel, the first oxygen supply holes can be uniformly distributed in the circumferential direction, and the fluorine-containing danger waste homoenergetic around the oxygen supply head can be fully combusted.
Preferably, the first oxygen supply hole is inclined downward from the inside to the outside.
Avoid the useless pouring of fluorine-containing danger to go into in the bottom oxygen supply pipe, and guarantee to carry out effective oxygen suppliment to the useless danger of laminating on the hearth.
Preferably, the side wall of the second oxygen supply head is provided with a through hole, the second oxygen supply head is internally provided with a second oxygen supply pipe communicated with the bottom oxygen supply pipe, the second oxygen supply head is internally provided with a second oxygen supply hole respectively communicated with the second oxygen supply pipe and the inside of the furnace body, and the second oxygen supply head is also internally provided with a third oxygen supply hole respectively communicated with the second oxygen supply pipe and the through hole.
Although the movement track of the fluorine-containing hazardous waste is spiral, the oxygen supply head has small obstruction to the fluorine-containing hazardous waste, the obstruction still exists at certain positions, the fluorine-containing hazardous waste is possibly blocked by the oxygen supply head and cannot move continuously, the second oxygen supply head is arranged at the positions, the fluorine-containing hazardous waste transversely passes through the through hole to move continuously under the push of the stirring arm, and the axial direction of the through hole is preferably consistent with the movement direction of the hazardous waste; and combustion air is through the second oxygen suppliment pipe, and partly air is through the useless oxygen suppliment of second oxygen suppliment hole to the outside fluorine-containing danger of oxygen suppliment head, and another part air is through the useless oxygen suppliment of third oxygen suppliment head to the fluorine-containing danger in the oxygen suppliment head through-hole. The second supplies oxygen hole and third to supply oxygen hole preferred to be inclined downwards and set up, and the effect is the same with first oxygen hole that supplies, and in addition, the third of slope supplies oxygen hole still to help the useless effect of pushing out in the through-hole of danger. The second oxygen supply head can be arranged for the dangerous waste containing fluorine with low combustion oxygen demand.
Preferably, the bottom surface of the through hole is a slope declining towards the two ends of the through hole.
Avoid the useless accumulation of danger in the through-hole, in time outwards discharge.
Preferably, the stirring arm and the support arm are provided with a second oxygen supply channel communicated with the interior of the furnace body.
Through setting up second oxygen suppliment passageway and increasing the oxygen suppliment all the way in the useless top of danger, further promote the oxygen suppliment ability, the burning is more abundant.
Preferably, the side wall of the furnace body is provided with a rotary oxygen supply port, the rotary oxygen supply port is uniformly arranged around the circumferential direction of the side wall of the furnace body, and an included angle is formed between the axial direction of the rotary oxygen supply port and the tangential direction of the side wall of the furnace body.
The rotary oxygen supply port supplies oxygen along the rotation direction of the combustion channel, so that the combustion flame in the furnace forms rotary backflow flame, and the gas phase in the furnace body is ensured to be fully combusted.
Therefore, the invention has the following beneficial effects: (1) the static incinerator has the advantages of corrosion speed delay, long service cycle, low maintenance frequency and low operation and maintenance cost; (2) oxygen is uniformly distributed by supplying oxygen from the bottom, sufficient combustion is ensured, and the device has strong corrosion resistance, convenient maintenance and low cost; (3) independently supplying oxygen according to different oxygen demands of different areas; (4) the second oxygen supply head is arranged to avoid the obstruction to the movement of the fluorine-containing hazardous waste; (5) the rotary flame is adopted for combustion, the temperature in the furnace is kept consistent, and the combustion efficiency is high; (6) harmful gases are fully combusted and removed.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is an enlarged view of the oxygen supplying head of fig. 1.
FIG. 3 is a top view of the hearth of the present invention.
Fig. 4 is a schematic view of a second oxygen supplying head according to the present invention.
FIG. 5 is a sectional view of a second oxygen supplying head according to the present invention
Fig. 6 is a schematic structural diagram of embodiment 2 of the present invention.
In the figure: 1. furnace body, 11, outlet flue, 12, the oxygen suppliment mouth of circling round, 13, supplementary combustor, 2, the furnace bed, 21, the ash discharge mouth, 22, vertical oxygen suppliment passageway, 3, rotatory main shaft, 31, power device, 4, the swinging boom, 41, the support arm, 42, the support arm oxygen suppliment mouth, 5, bottom oxygen suppliment pipe, 6, first oxygen suppliment head, 61, first oxygen suppliment hole, 62, first oxygen suppliment pipe, 7, second oxygen suppliment head, 71, through-hole, 72, second oxygen suppliment pipe, 73, second oxygen suppliment hole, 74, third oxygen suppliment hole.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
Example 1
As shown in figure 1, the incinerator suitable for treating fluorine-containing hazardous waste comprises a circular cylindrical furnace body 1, wherein the top of the furnace body 1 is in a small-top-down conical shape, a smoke outlet 11 is formed in the top of the conical shape, a feed inlet is formed in the side wall of the furnace body 1, a hearth 2 made of corrosion-resistant materials is poured at the bottom of the furnace body 1, an ash discharge port 21 is formed in the middle of the hearth 2, a vertical rotating main shaft 3 is arranged on the hearth 2, six horizontal stirring arms 4 extending out along the radial direction are arranged on the rotating main shaft 3, the angles among the stirring arms 4 are consistent, vertical support arms 41 extending out of the stirring arms 4 downwards, the support arms 41 are arranged in a plurality along the stirring arms 4, the support arms 41 are detachably connected with the stirring arms 4, and the corrosion-resistant materials are coated on the stirring arms 4 and the support arms 41. The stirring arm 4 rotates about a rotation axis. A power device 31 is arranged below the hearth 2, and the power device 31 drives the stirring main shaft 3 to rotate.
As shown in fig. 2 and 3, a bottom oxygen supply pipe 5 is arranged in the furnace bed 2, the bottom oxygen supply pipe 5 comprises a plurality of annular pipes which are sequentially and concentrically sleeved from inside to outside, a plurality of first oxygen supply heads 6 and second oxygen supply heads 7 made of corrosion-resistant materials are uniformly distributed on each annular pipe, a vertical oxygen supply channel 22 for communicating the inside of the furnace body 1 with the bottom oxygen supply pipe 5 is arranged at the position of the furnace bed 2 corresponding to the oxygen supply heads, the annular pipes and the first oxygen supply heads 6 and the second oxygen supply heads 7 are correspondingly arranged between the radial adjacent support arms 41, and an air box is arranged below the furnace bed 2 and independently supplies oxygen to each annular pipe.
As shown in fig. 2, the first oxygen supply head 6 is a cylinder with a sealed top, a first oxygen supply pipe 62 is arranged in the cylinder, a first oxygen supply hole 61 which is inclined downwards from inside to outside is arranged on the cylinder wall, the first oxygen supply hole 61 is communicated with the first oxygen supply pipe 62 and the interior of the furnace body 1, the diameter of the bottom of the first oxygen supply head 6 is smaller than the diameter of the cylinder, and the bottom is in threaded connection with the vertical oxygen supply channel 22.
As shown in fig. 4 and 5, the second oxygen supply head 7 is a cylinder with a sealed top, the diameter of the bottom is smaller than that of the cylinder, the bottom is in threaded connection with the vertical oxygen supply channel 22, a through hole 71 is transversely formed in the side wall, the bottom surface of the through hole 71 is a slope declining towards the two ends of the through hole 71, a second oxygen supply pipe 72 communicated with the vertical oxygen supply channel 22 is arranged in the second oxygen supply head 7, the second oxygen supply pipe 72 is arranged outside the through hole 71, second oxygen supply holes 73 respectively communicated with the second oxygen supply pipe 72 and the inside of the furnace body 1 are arranged in the second oxygen supply head 7, third oxygen supply holes 74 respectively communicated with the second oxygen supply pipe 72 and the through hole 71 are also arranged in the second oxygen supply head 7, and the second oxygen supply holes 73 and the third oxygen supply holes 74 are both arranged obliquely downwards.
The side wall of the furnace body 1 is provided with an annular convolution oxygen supply channel, the convolution oxygen supply channel is provided with a convolution oxygen supply port 12 communicated with the inside of the furnace, the convolution oxygen supply port 12 is evenly arranged around the circumference of the side wall of the furnace body 1, the axial direction of the convolution oxygen supply port 12 and the tangent line of the side wall of the furnace body 1 form an included angle of 30 degrees, the included angle is inclined downwards by 30 degrees, and a pair of opposite auxiliary burners 13 is arranged on the furnace wall above the convolution oxygen supply port.
The burning material, namely the fluorine-containing hazardous waste, is thrown onto the hearth from the feeding hole, and then the pyrolysis burning process is carried out on the burning material in a way that the burning material horizontally moves towards the spiral moving track of the center of the hearth. The whole process drives the stirring arm to rotate by the power device to provide power, and the whole material moves from the periphery of the hearth to the center of a circle in the pyrolysis incineration process and needs to sequentially pass through a drying area, a pyrolysis area, an incineration area and a cooling area. The second oxygen supply head 7 is arranged at the crossed part of the spiral track and the arrangement point of the oxygen supply head, and the rest oxygen supply heads are the first oxygen supply heads 6. The support arm moves between the oxygen supply heads and cannot interfere with the oxygen supply heads.
The combustion-supporting air supplies oxygen from the bottom bellows, the combustion-supporting air firstly enters the bottom oxygen supply pipe, then passes through the vertical oxygen supply channel, and part of the combustion-supporting air is obliquely discharged downwards from the first oxygen supply hole 61 of the first oxygen supply head, so that oxygen is supplied to the fluorine-containing hazardous waste accumulated at the bottom of the hearth for supporting combustion, and the material is prevented from flowing backwards; another part of the air is supplied from the second oxygen supply hole 73 and the third oxygen supply hole 74 of the second oxygen supply head. The useless through-hole 71 that passes through of fluorine-containing danger is moved forward, avoids being blockked by the oxygen suppliment head, and the material is owing to be propulsive in succession, and the material in the rear can promote the material in the place ahead and pass through the through-hole, can not pile up in the through-hole, and the air that blows off in the third oxygen suppliment hole 74 also provides the power that makes the material release, and the bottom slope acceleratees the material and leaves the through-hole. Because the bottom oxygen supply pipe sets up in the hearth, at the incineration process, the bottom oxygen supply pipe can not receive the corruption, and only hearth, oxygen suppliment head and support arm surface contact contain fluorine danger useless, and hearth, oxygen suppliment head are as corrosion-resistant component, and the corrosion rate is slower, and because oxygen suppliment head and support arm are can dismantle the connection, it is very convenient to change the maintenance, corrodes the attenuation after long-time the use when the hearth, only need pour into a mould again to original thickness can.
The material in the drying area is driven by the stirring arm and the support arm, the water is evaporated, and meanwhile, the fluorine-containing hazardous waste edge slowly moves in a spiral manner towards the center direction of the hearth while being dried; after the fluorine-containing hazardous waste is dried, the temperature of the fluorine-containing hazardous waste rises, volatile substances in the fluorine-containing hazardous waste start to be evaporated and released into a hearth, and the fluorine-containing hazardous waste also moves to a pyrolysis area according to a spiral track under the action of a stirring arm; organic matters in the fluorine-containing hazardous waste in the pyrolysis area are thermally decomposed to simultaneously form pyrolysis gas and pyrolysis carbide. These combustible volatile matter and pyrolysis gas are burned together with combustion air blown out from the oxygen supply head. The rabbling arm stirs rotatoryly on the hearth with the speed of minute number of revolutions, forms the space between support arm and the useless fluorine-containing danger, and the useless rapid mummification of fluorine-containing danger is by the useless surface of mummification fluorine-containing danger constantly be turned over the stir-fry and be updated to make combustible pyrolysis gas evenly produce on the hearth, it is less to correspond the annular tube oxygen supply volume in mummification region and pyrolysis region scope.
The residual pyrolytic carbide after the combustible gas in the fluorine-containing hazardous waste is completely released enters an incineration area in the furnace bed under the rotary pushing of the stirring arm to be in an ignition state, the pyrolytic carbide is in contact with air blown out from the oxygen supply hole and starts to burn while being stirred, the pyrolytic carbide is stirred while being fried, and the pyrolytic carbide gradually moves to the center of the furnace bed along a spiral track while being burnt. The oxygen supply amount of the annular pipe in the range corresponding to the incineration area is increased compared with that of the pyrolysis area so as to ensure full incineration; after the pyrolytic carbide is completely combusted, the pyrolytic carbide is changed into ash, enters a cooling area in a hearth, and is blown out air from an oxygen supply hole for cooling; the cooled ash and slag finally move to the central part of the hearth, are discharged from an ash discharge port, enter a slag discharging device and are conveyed out. The annular pipe in the cooling area has the largest oxygen supply amount because more air is needed to cool the ash, so that on one hand, the temperature of the ash is reduced, the subsequent conveying is convenient, the heat in the ash is recovered, the temperature of combustion air is increased, and auxiliary fuel is saved. When the temperature in the furnace is insufficient, auxiliary fuel such as natural gas and the like can be introduced through the auxiliary burner to support combustion.
The air entering from the rotary oxygen supply port arranged around the furnace wall enables the combustion flame in the furnace to form a rotary state, and the flame rotary flow is more regular, so that the flame can be completely combusted at the upper part of the hearth. The structure principle and the operation working condition of the incinerator are strictly designed according to the principle of controlling dioxin by 3T, and the generation of the dioxin in the incineration process is strictly controlled.
Only the rotating arm and the support arm of the incinerator are dynamic structures, and the rest structures are static structures, so that looseness or gaps are not easy to generate in the incineration process, and the corrosion speed is low; the components directly contacted with the fluorine-containing hazardous wastes are made of corrosion-resistant materials, and are convenient to maintain and replace.
Example 2
An incinerator suitable for treating fluorine-containing hazardous waste has substantially the same structure as that of embodiment 1, except that, as shown in FIG. 6, an oxygen supply passage is provided in the stirring arm 4 and the arm 41, and an arm oxygen supply port 42 communicating with the oxygen supply passage is provided in the arm 41. The combustion-supporting air is introduced into the oxygen supply channel, and an oxygen supply gas circuit is additionally arranged, so that the distribution of oxygen supply points is wider, and the full combustion is ensured. The size of the support arm oxygen supply port 42 is gradually increased from top to bottom to ensure the oxygen supply amount at the bottom of the material. The arm inner portion 41 in this embodiment is also coated with a corrosion resistant material.
Claims (10)
1. The utility model provides an burn burning furnace suitable for useless processing of fluorine-containing danger, includes furnace body (1), and furnace body (1) top is equipped with outlet flue (11), and furnace body (1) bottom is equipped with hearth (2), and hearth (2) middle part is equipped with ash discharge opening (21), is equipped with vertical rotatory main shaft (3) on hearth (2), is equipped with on rotatory main shaft (3) to use it as rotatory puddler (4) of rotation axis, is equipped with on puddler (4) support arm (41) to hearth (2) extension, characterized by, be equipped with bottom oxygen supply pipe (5) in hearth (2), can dismantle on hearth (2) and be connected with first oxygen suppliment head (6) and/or second oxygen suppliment head (7), all be equipped with on first oxygen suppliment head (6) and the second oxygen suppliment head (7) and communicate respectively bottom oxygen suppliment pipe (5) and the inside oxygen supply passageway of furnace body (1), hearth (2), The first oxygen supply head (6) and the second oxygen supply head (7) are both made of corrosion-resistant materials, and the surfaces of the stirring arm (4) and the support arm (41) are covered with the corrosion-resistant materials.
2. An incinerator suitable for treating fluorine-containing hazardous waste according to claim 1, wherein said bottom oxygen supply pipe (5) comprises a plurality of annular pipes sleeved from inside to outside, and a plurality of first oxygen supply nozzles (6) and/or second oxygen supply nozzles (7) are distributed on each annular pipe.
3. An incinerator suitable for treating fluorine-containing hazardous waste according to claim 2, wherein said arms (41) are correspondingly disposed between adjacent ring pipes.
4. An incinerator suitable for treatment of hazardous waste containing fluorine as claimed in claim 2 wherein each annular pipe is supplied with oxygen independently.
5. The incinerator for treating fluorine-containing hazardous waste according to claim 1, wherein said first oxygen supply nozzle (6) is a top-sealed cylinder, and a first oxygen supply hole (61) is formed on the cylinder wall.
6. An incinerator suitable for treating fluorine-containing hazardous waste as claimed in claim 5, wherein said first oxygen supply hole (61) is inclined downwardly from inside to outside.
7. The incinerator for treating fluorine-containing hazardous waste according to claim 1, wherein said second oxygen supply nozzle (7) has a through hole (71) on its side wall, said second oxygen supply nozzle (7) has a second oxygen supply pipe (72) connected to said bottom oxygen supply pipe (5), said second oxygen supply nozzle (7) has a second oxygen supply hole (73) connected to said second oxygen supply pipe (72) and said furnace body (1), said second oxygen supply nozzle (7) has a third oxygen supply hole (74) connected to said second oxygen supply pipe (72) and said through hole (71).
8. An incinerator suitable for treating hazardous waste containing fluorine according to claim 7, wherein the bottom surface of said through hole (71) is a slope declining toward both ends of said through hole (71).
9. An incinerator suitable for treating fluorine-containing hazardous waste according to any one of claims 1 to 8, wherein said stirring arm (4) and said support arm (41) are provided with a second oxygen supply passage communicating with the interior of the incinerator body (1).
10. An incinerator suitable for fluorine-containing hazardous waste treatment according to any one of claims 1-8, characterized in that said furnace body (1) side wall is provided with rotary oxygen supply ports (12), said rotary oxygen supply ports (12) are evenly arranged around the furnace body (1) side wall in circumferential direction, and the axial direction of said rotary oxygen supply ports (12) forms an included angle with the furnace body (1) side wall tangential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110395368.2A CN113137617A (en) | 2021-04-13 | 2021-04-13 | Burn burning furnace suitable for useless processing of fluorine-containing danger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110395368.2A CN113137617A (en) | 2021-04-13 | 2021-04-13 | Burn burning furnace suitable for useless processing of fluorine-containing danger |
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| CN113137617A true CN113137617A (en) | 2021-07-20 |
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| CN202110395368.2A Pending CN113137617A (en) | 2021-04-13 | 2021-04-13 | Burn burning furnace suitable for useless processing of fluorine-containing danger |
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| CN104819454A (en) * | 2015-05-09 | 2015-08-05 | 湖北环太生物质设备有限公司 | Biomass burning heating jetting furnace with fire grate |
| CN107166728A (en) * | 2017-06-07 | 2017-09-15 | 安徽都灵精密机械有限公司 | A kind of disperse formula hearth of hot-blast stove bottom blowing apparatus of oxygen supply |
| CN207729637U (en) * | 2017-12-25 | 2018-08-14 | 安徽中科自动化股份有限公司 | A kind of suspension furnace bottom apparatus of oxygen supply |
| CN109974004A (en) * | 2019-03-15 | 2019-07-05 | 浙江三联环保科技股份有限公司 | A kind of cleaning incineration furnace |
| CN210267248U (en) * | 2019-03-27 | 2020-04-07 | 湖南薪火传环保科技有限责任公司 | Garbage gasification primary and secondary furnace equipment with upward flame-throwing combustion stove |
| CN210772139U (en) * | 2019-09-17 | 2020-06-16 | 中国华能集团清洁能源技术研究院有限公司 | Circulating fluidized bed boiler hood and air distribution plate with same |
| CN211716579U (en) * | 2020-03-20 | 2020-10-20 | 杭州火印科技有限公司 | High-efficient pollution-free medical waste incinerator that burns |
| CN212132522U (en) * | 2020-02-25 | 2020-12-11 | 镇江众帮信息技术有限公司 | Firewood stove with good smoke absorbing and removing effect |
| CN112628765A (en) * | 2020-12-17 | 2021-04-09 | 浙江三联环保科技股份有限公司 | Sludge incineration device |
| CN113108290A (en) * | 2021-04-13 | 2021-07-13 | 浙江省环保集团有限公司 | Air distribution system of incinerator |
| CN113124411A (en) * | 2021-04-13 | 2021-07-16 | 浙江省环保集团有限公司 | Fluorine-containing hazardous waste treatment process |
| CN214791158U (en) * | 2021-04-13 | 2021-11-19 | 浙江省环保集团有限公司 | Useless processing system of fluorine-containing danger |
| CN214949081U (en) * | 2021-04-13 | 2021-11-30 | 浙江省环保集团有限公司 | Burn burning furnace suitable for useless processing of fluorine-containing danger |
| CN214949080U (en) * | 2021-04-13 | 2021-11-30 | 浙江省环保集团有限公司 | Air distribution system of incinerator |
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2021
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| CN201396755Y (en) * | 2009-05-21 | 2010-02-03 | 北京乡电电力有限公司 | Biomass fluidized bed cyclone air distributor |
| CN104819454A (en) * | 2015-05-09 | 2015-08-05 | 湖北环太生物质设备有限公司 | Biomass burning heating jetting furnace with fire grate |
| CN107166728A (en) * | 2017-06-07 | 2017-09-15 | 安徽都灵精密机械有限公司 | A kind of disperse formula hearth of hot-blast stove bottom blowing apparatus of oxygen supply |
| CN207729637U (en) * | 2017-12-25 | 2018-08-14 | 安徽中科自动化股份有限公司 | A kind of suspension furnace bottom apparatus of oxygen supply |
| CN109974004A (en) * | 2019-03-15 | 2019-07-05 | 浙江三联环保科技股份有限公司 | A kind of cleaning incineration furnace |
| CN210267248U (en) * | 2019-03-27 | 2020-04-07 | 湖南薪火传环保科技有限责任公司 | Garbage gasification primary and secondary furnace equipment with upward flame-throwing combustion stove |
| CN210772139U (en) * | 2019-09-17 | 2020-06-16 | 中国华能集团清洁能源技术研究院有限公司 | Circulating fluidized bed boiler hood and air distribution plate with same |
| CN212132522U (en) * | 2020-02-25 | 2020-12-11 | 镇江众帮信息技术有限公司 | Firewood stove with good smoke absorbing and removing effect |
| CN211716579U (en) * | 2020-03-20 | 2020-10-20 | 杭州火印科技有限公司 | High-efficient pollution-free medical waste incinerator that burns |
| CN112628765A (en) * | 2020-12-17 | 2021-04-09 | 浙江三联环保科技股份有限公司 | Sludge incineration device |
| CN113108290A (en) * | 2021-04-13 | 2021-07-13 | 浙江省环保集团有限公司 | Air distribution system of incinerator |
| CN113124411A (en) * | 2021-04-13 | 2021-07-16 | 浙江省环保集团有限公司 | Fluorine-containing hazardous waste treatment process |
| CN214791158U (en) * | 2021-04-13 | 2021-11-19 | 浙江省环保集团有限公司 | Useless processing system of fluorine-containing danger |
| CN214949081U (en) * | 2021-04-13 | 2021-11-30 | 浙江省环保集团有限公司 | Burn burning furnace suitable for useless processing of fluorine-containing danger |
| CN214949080U (en) * | 2021-04-13 | 2021-11-30 | 浙江省环保集团有限公司 | Air distribution system of incinerator |
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