CN116874154A - Utilize device of tunnel cave pyrolysis deodorization mud - Google Patents
Utilize device of tunnel cave pyrolysis deodorization mud Download PDFInfo
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- CN116874154A CN116874154A CN202310654944.XA CN202310654944A CN116874154A CN 116874154 A CN116874154 A CN 116874154A CN 202310654944 A CN202310654944 A CN 202310654944A CN 116874154 A CN116874154 A CN 116874154A
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- sludge
- pyrolysis
- tunnel kiln
- auger conveyor
- discharging
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 69
- 238000004332 deodorization Methods 0.000 title claims description 5
- 239000010802 sludge Substances 0.000 claims abstract description 84
- 238000007599 discharging Methods 0.000 claims abstract description 40
- 238000003860 storage Methods 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 230000001877 deodorizing effect Effects 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 6
- 239000011449 brick Substances 0.000 abstract description 6
- 229910052799 carbon Inorganic materials 0.000 abstract description 6
- 239000002918 waste heat Substances 0.000 abstract description 5
- 238000000354 decomposition reaction Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 12
- 239000000047 product Substances 0.000 description 10
- 238000001035 drying Methods 0.000 description 6
- 230000001939 inductive effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000002420 orchard Substances 0.000 description 1
- 239000011146 organic particle Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a device for pyrolyzing and deodorizing sludge by using a tunnel kiln, which comprises a pyrolysis box, an auger conveyor, a storage hopper, a feeding scraper and a discharging mechanism, wherein a feeding port and a discharging port of the auger conveyor are arranged outside the pyrolysis box, and the storage hopper is arranged on one side of the pyrolysis box and is positioned above a feeding port at one end of the auger conveyor; compared with the prior art, the invention fully utilizes the waste heat of the tunnel kiln to carry out pyrolysis treatment on the sludge, so that on one hand, the waste of heat in the tunnel kiln is avoided, on the other hand, the energy provided by the pyrolysis of the sludge is provided, and meanwhile, the harmful gas generated by the pyrolysis of the sludge can be put into the high-temperature tunnel kiln for decomposition treatment; meanwhile, the sludge subjected to pyrolysis treatment has a certain carbon value, can be used as a mixed raw material of sintered bricks, saves the cost of brick products, and further realizes harmless and recycling treatment and utilization of the sludge.
Description
Technical Field
The invention relates to the technical field of sludge treatment, in particular to a device for pyrolyzing and deodorizing sludge by using a tunnel kiln.
Background
The tunnel kiln is a long straight tunnel, the two sides and the top of the tunnel kiln are provided with fixed walls and vaults, kiln cars are operated on rails laid at the bottom of the tunnel kiln, combustion equipment is arranged on the two sides of the middle of the tunnel kiln to form a high-temperature sintering zone at a fixed position, high-temperature flue gas generated by combustion flows along the tunnel towards the kiln head under the action of a chimney or a draught fan at the front end of the tunnel kiln, and meanwhile products entering the kiln are preheated gradually, and the section forms a preheating zone of the tunnel kiln. And (3) blowing cold air into the tail of the tunnel kiln to cool the product at the later stage in the tunnel kiln, heating the blown cold air by flowing through the product, and then pumping out the product to be sent into a dryer to be used as a heat source for drying the green compact, wherein the stage forms a cooling belt of the tunnel kiln.
In the prior art, although the waste heat utilization means of a tunnel kiln is increasingly perfect and mature, the kiln outlet temperature of the product is still very high, kiln cars/firing products need to be cooled in workshops, and the loss of heat is huge from the aspect of energy utilization; in addition, for some products with overhigh heat value, a large amount of heat is released in the roasting process in the tunnel kiln and is accumulated in a high-temperature zone of the tunnel kiln, if the heat is not timely discharged, the temperature of the high-temperature zone exceeds the roasting temperature, the phenomenon of increasing the rejection rate occurs when the heat is light, and the production accident of collapse and kiln blocking of a product stack on a kiln car in the tunnel kiln occurs when the heat is heavy.
The sludge is generally flocculent matters which are produced by a sewage treatment plant in the sewage treatment process and are mixed with solid and liquid, and mainly originates from the process links of dehydration and the like of a primary sedimentation tank and a secondary sedimentation tank, and the sludge production amount after ten thousand tons of sewage are generally about 10-20 tons (calculated according to the water content of 90 percent). The sludge has complex components and mainly consists of various microorganisms, organic and inorganic particles, and also contains heavy metals, organic pollutants, pathogenic microorganisms, parasitic ova and other harmful substances. The existing sludge treatment modes comprise landfill, sea throwing, incineration and land utilization; the landfill disposal occupies a large space, a proper place is not easy to find, the construction cost of the sludge transportation and landfill sites is high, the capacity of the landfill sites is limited, and leakage of harmful components can pollute underground water; the sea throwing is to treat sludge by utilizing huge diluting and containing capacity of sea, and the approach is relatively simple to operate, but along with the enhancement of ecological environment consciousness, coastal countries pay more attention to the possible influence on the marine ecological environment after the sludge is thrown into the sea, and many countries are forbidden to throw the sludge into the sea; the incineration is to treat the sludge by utilizing the characteristics of higher organic components, certain heat value and the like in the sludge, but the incineration treatment has the problems of higher investment and operation cost, difficult plan implementation, secondary pollution possibly caused by improper control of gas generated by the incineration, insufficient utilization of the useful components in the sludge and the like. Land utilization is considered to be the most potential disposal mode, which is to apply sludge to farmland, vegetable land, orchard, woodland, grassland, municipal greening, seedling substrate, severely disturbed land restoration and reconstruction, etc.; the sludge contains a large amount of organic matters and nutrient components required by plants, is a valuable biological resource, scientifically and reasonably utilizes the land, can reduce the negative effects thereof, and enables the sludge to reenter the material and energy circulation of the natural environment. The sludge applied to the forest land and the garden green land can promote the growth of trees, flowers and lawns, improve the ornamental quality of the trees, flowers and lawns, and is not easy to form the harm of food chain pollution. Therefore, the utilization of the woodland and municipal greening of the sludge is a very promising utilization mode. However, one important condition that needs to be possessed by the land use of the sludge is: it contains harmful components not exceeding capacity range that the environment can withstand. Sludge, because of being derived from sewage of various components and properties, generally inevitably contains some harmful components such as various pathogenic bacteria, heavy metals, organic pollutants and the like, which limit the development of sludge in land use to a certain extent. Therefore, the sludge is generally subjected to certain harmless treatment before being utilized, so that perishable and odorous organic matters in the sludge are reduced, the volume and the number of the sludge are reduced, the pathogens are killed, and the risk of harmful components is reduced.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention aims to provide a device for pyrolyzing and deodorizing sludge by using a tunnel kiln, which fully utilizes the waste heat of the tunnel kiln to carry out pyrolysis treatment on the sludge, so that on one hand, the waste of heat in the tunnel kiln is avoided, on the other hand, the energy provided for the pyrolysis of the sludge is provided, and meanwhile, the harmful gas generated during the pyrolysis of the sludge can be put into a high-temperature tunnel kiln for decomposition treatment; meanwhile, the sludge subjected to pyrolysis treatment has a certain carbon value, can be used as a mixed raw material of sintered brick stones, saves the cost of brick products, and further realizes harmless and recycling treatment and utilization of the sludge, so that the technical problems that in the prior art, a heat source is needed to be provided when the sludge is dried, the cost is high, a large amount of harmful gas is generated in the drying process, the waste gas treatment is not facilitated, the harmful gas also contains a large amount of malodorous organic waste gas, and serious adverse effects are caused to the surrounding environment are solved.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
the invention provides the following technical scheme: the device for pyrolyzing and deodorizing sludge by using the tunnel kiln comprises a pyrolysis box, an auger conveyor, a storage hopper, a feeding scraper and a discharging mechanism, wherein a feeding port and a discharging port of the auger conveyor are arranged outside the pyrolysis box, the storage hopper is arranged on one side of the pyrolysis box and above a feeding port at one end of the auger conveyor, and the discharging mechanism is arranged at a discharging port at the other end of the auger conveyor;
the pyrolysis box is arranged on a vault at the rear section of the high-temperature zone of the tunnel kiln, and the pyrolysis box is arranged in a closed mode and extends along the length direction of the tunnel kiln.
The feeding scraper is arranged beside the tunnel kiln and is arranged above the storage hopper and used for conveying sludge to be treated into the storage hopper.
The discharge mechanism is arranged on one side of the pyrolysis box, one end of the discharge mechanism is communicated with a discharge port of the auger conveyor and is used for discharging and conveying the sludge after pyrolysis treatment.
The pyrolysis box is a square frame formed by welding a cross rod, a longitudinal rod and a vertical rod, a plate body structure is fixed on each surface of the square frame, and an insulating layer is arranged on the plate body structure.
The auger conveyors in the pyrolysis box are arranged in parallel, and a plurality of storage hoppers are arranged on one side of the pyrolysis box and correspond to the feed inlets of the auger conveyors one by one.
The auger conveyor is provided with a plurality of induced air branch pipes which are arranged at intervals along the length direction of the auger conveyor, the induced air branch pipes are communicated with an induced air main pipe, the induced air main pipe is provided with a fan, and an air outlet pipe at the other end of the induced air main pipe is communicated to a combustion section of the tunnel kiln.
A flashboard is arranged between the storage hopper and the feeding scraper, the flashboard is controlled to move by a driving cylinder, a rotation-resistant material level switch is arranged on the upper portion and the lower portion of the storage hopper, and the rotation-resistant material level switch is electrically connected with the driving cylinder.
A feeding airlock is arranged between the storage hopper and the auger conveyor.
The spiral blade of the auger conveyor is provided with a notch part and a stirring sheet of the vertical spiral blade.
The discharging mechanism comprises a first spiral conveyor horizontally arranged on the tunnel kiln, a second spiral conveyor obliquely arranged is arranged at the discharging end of the first spiral conveyor, and a discharging scraper machine is arranged at the discharging end of the second spiral conveyor.
Compared with the prior art, the invention has the following technical effects:
according to the device for pyrolyzing and deodorizing the sludge by using the tunnel kiln, waste heat of the tunnel kiln is fully utilized to carry out pyrolysis treatment on the sludge, so that waste of heat in the tunnel kiln is avoided, energy provided for pyrolysis of the sludge is provided for the other side, and meanwhile, harmful gas generated during pyrolysis of the sludge can be put into the high-temperature tunnel kiln for decomposition treatment; meanwhile, the sludge subjected to pyrolysis treatment has a certain carbon value, can be directly used as fuel, can also be used as a mixed raw material of sintered brick stones, saves the cost of brick products, and further realizes harmless and recycling treatment and utilization of the sludge.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a partial internal schematic view of the auger conveyor of the present invention;
in the figure: 100. a pyrolysis tank; 110. an induced draft branch pipe; 120. an induced draft main pipe; 200. an auger conveyor; 201. a feed inlet; 202. a discharge port; 210. a helical blade; 211. a notch portion; 212. a stirring sheet; 300. a storage hopper; 310. a flashboard; 320. a driving cylinder; 330. a rotation-resistant material level switch; 340. a discharge port; 341. a feed airlock; 400. feeding scraper machine; 410. a discharge port; 500. a discharging mechanism; 510. a first screw conveyor; 520. a second screw conveyor; 530. discharging scraper machine; 600. and (5) a tunnel kiln.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present invention easy to understand, the present invention is further explained below with reference to the specific drawings.
Drying treatment in which most of the water content is removed from the sludge by percolation or evaporation or the like; the pyrolysis treatment of the sludge is to release the water in the sludge by a certain means, simultaneously save the carbon value in the sludge to the maximum extent, greatly improve the carbon content in the final product, and adopt the waste heat of the tunnel kiln as the heating power source of the pyrolysis method, thereby saving a great amount of energy sources compared with the traditional drying modes needing autonomous heating, such as evaporation, drying and the like.
As shown in fig. 1 to 3, the device for treating sludge by pyrolysis in a tunnel kiln provided by the invention comprises a pyrolysis box 100, an auger conveyor 200, a storage hopper 300, a feeding scraper 400 and a discharging mechanism 500;
the pyrolysis box 100 is arranged at the vault of the high-temperature zone section of the tunnel kiln 600, and the pyrolysis box 100 is arranged in a closed manner and extends along the length direction of the tunnel kiln 600;
the auger conveyor is arranged in the pyrolysis box and extends along the length direction of the pyrolysis box, and a feed port 201 and a discharge port 202 of the auger conveyor 200 are both arranged outside the pyrolysis box 100; the storage hopper is arranged beside the pyrolysis box and above a feed inlet of the auger conveyor and is used for quantitatively discharging sludge to be treated into the auger conveyor 200; the feeding scraper 400 is arranged beside the tunnel kiln 600 and is used for conveying sludge to be treated into the storage hopper 300; the discharging mechanism 500 is arranged beside the pyrolysis box 100, and one end of the discharging mechanism 500 is communicated with the discharging port 202 of the auger conveyor 200 and is used for conveying the sludge after pyrolysis outwards;
specifically, the sludge to be treated is input from one end of the pyrolysis box 100 by using the auger conveyor 200, and because the pyrolysis box 100 is closely attached to the rear section of the high-temperature zone of the tunnel kiln 600 and is subjected to sealing treatment, the internal temperature of the pyrolysis box is very high, specifically 300-1000 ℃, wherein the combustion section is a section area of the high-temperature zone, the temperature is above 800 ℃, the high temperature in the pyrolysis box 100 dries the sludge in the auger conveyor 200, so that organic matters in the sludge are decomposed and volatile matters are volatilized, and finally a pyrolyzate is formed and is output from the other end of the pyrolysis box 100.
By the device, the low cost and the resource utilization of the sludge are realized; it should be noted that, due to the drying treatment of the sludge under the anaerobic condition, the carbon value in the sludge is retained, and the sludge after the pyrolysis treatment is collected and then can be directly put into the tunnel kiln 600 to be used as fuel, so as to realize the full utilization of resources.
The pyrolysis box 100 of the device provided by the invention is additionally built above the tunnel kiln 600 to collect heat and serve as a place for conveying and pyrolyzing sludge, and in a specific embodiment of the invention, the pyrolysis box 100 is a square frame formed by welding a transverse rod, a longitudinal rod and a vertical rod, each surface of the square frame is fixed with a plate structure, and a heat insulation layer is arranged on the plate structure. Through the setting of heat preservation, guaranteed that the box of pyrolysis case can satisfy certain temperature requirement.
In order to improve the efficiency of the sludge pyrolysis treatment, in a specific embodiment of the present invention, a plurality of auger conveyors 200 are arranged in parallel in the pyrolysis tank 100, and a plurality of storage hoppers 300 are provided at the sides of the pyrolysis tank 100 in a one-to-one correspondence with the 200 feed inlets 202 of the auger conveyors. In a specific operation, a plurality of auger conveyors 200 are operated simultaneously to utilize the heat of the tunnel kiln as efficiently as possible.
In the present invention, a plurality of air-inducing branch pipes 110 are arranged on the auger conveyor 200 at intervals along the length direction thereof, each of the plurality of air-inducing branch pipes is communicated with an air-inducing main pipe 120, a fan 130 is arranged on the air-inducing main pipe 120, and an air outlet pipe 131 at the other end of the air-inducing main pipe 120 is communicated to the combustion section of the tunnel kiln 600. Through this induced air branch pipe 110's setting, can be timely come out with the volatile material guide that mud pyrolysis treatment in-process produced, especially some harmful substance, guide it to the burning section of tunnel kiln 600, utilize high temperature to burn out harmful substance, avoided the influence to the surrounding environment.
In the present invention, a gate plate 310 is disposed between an inlet of a storage hopper 300 and a discharge opening 410 of a feeding scraper 400, wherein the gate plate 310 is controlled to move by a driving cylinder 320 to control the on-off of the feeding scraper 400 to discharge materials in the storage hopper 300; the upper and lower parts of the storage hopper 300 are provided with a rotation-preventing level switch 330, and the rotation-preventing level switch 330 is electrically connected with the driving cylinder 320. In the invention, the material level in the storage hopper 330 is judged by the rotation-resisting material level switches 330 arranged at the upper part and the lower part of the storage hopper 300, and if the material level is lower, the rotation-resisting material level switch 330 arranged at the lower part of the storage hopper 300 monitors the signal, the driving cylinder 320 is controlled to pull out the flashboard 310, so that the sludge in the feeding scraper 400 is discharged into the storage hopper 300; if the higher material level is reached, a rotation-resisting material level switch 330 positioned at the upper part of the storage hopper 300 monitors the signal, and timely controls a driving cylinder 320 to push a flashboard 310 so as to block a discharging passage of the feeding scraper 400 into the storage hopper 300; the sludge to be treated is firstly conveyed into the storage hopper 300 positioned at one end of the pyrolysis box 100 by the feeding scraper 400, then quantitatively lowered into the auger conveyor 200 positioned below the storage hopper 300 by the storage hopper 300, and continuously quantitative sludge can be obtained in the auger conveyor 200 by collecting the sludge to be treated into the storage hopper 300 in advance and then lowering the sludge into the auger conveyor 200.
In the invention, a feed air lock 341 is arranged between a discharging hole below the storage hopper 300 and a feeding hole 201 of the auger conveyor 200, and the feeding amount of the auger conveyor is controlled by the feed air lock 341.
According to the device provided by the invention, the spiral blade 210 of the auger conveyor 200 is provided with the notch 211 and the stirring sheet 212 of the vertical spiral blade 210, and the sludge is stirred through the notch 211 and the stirring sheet 212 of the vertical spiral blade 210, so that the sludge can be pyrolyzed more fully by absorbing heat. Meanwhile, the plurality of concave parts 211 in the length direction of the auger conveyor 200 can form an exhaust channel, the induced air branch pipe 110 and the induced air main pipe 120 form an exhaust gas conveying channel, and by using the exhaust gas conveying channel, exhaust gas generated during stirring pyrolysis in the auger conveyor 200 can be smoothly discharged and conveyed to the combustion section of the tunnel kiln 600, and the exhaust gas can be used as fuel of the tunnel kiln 600, and harmful gas (such as dioxin) and organic volatile odor (organic exhaust gas) in the exhaust gas can be rapidly decomposed or oxidized, so that the pollution of the exhaust gas to the surrounding environment is prevented, the temperature of the combustion section is above 800 ℃, the rapid decomposition or oxidation of the dioxin can be realized, and the emission of the harmful gas is avoided. In a further preferred embodiment, the indentations 211 are staggered with the deflector 212 to ensure more thorough agitation of the sludge in the cylinder chamber and also to turn the sludge over to allow it to absorb heat sufficiently.
In the invention, two ends of the auger conveyor 200 are respectively provided with a feeding section circular pipe and a discharging section circular pipe, a feeding port of the auger conveyor 200 is arranged on the feeding section circular pipe, and a discharging port is arranged on the discharging section circular pipe. Through the arrangement of the circular tube in the feeding section and the circular tube in the discharging section, the connection operation is convenient, and the subsequent maintenance operation is also convenient.
In the invention, the discharging mechanism 500 comprises a first screw conveyor 510 transversely arranged on the tunnel kiln, a second screw conveyor 520 obliquely arranged is arranged at the discharging end of the first screw conveyor 510, and a discharging scraper 530 is arranged at the discharging end of the second screw conveyor.
The foregoing has outlined and described the basic principles, main features and features of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The device for pyrolyzing and deodorizing sludge by using a tunnel kiln is characterized by comprising a pyrolysis box (100), an auger conveyor (200), a storage hopper (300), a feeding scraper (400) and a discharging mechanism (500), wherein a feeding port (201) and a discharging port (202) of the auger conveyor (200) are arranged outside the pyrolysis box (100), the storage hopper (300) is arranged on one side of the pyrolysis box (100) and above a feeding port (201) at one end of the auger conveyor (200), and the discharging mechanism (500) is arranged at a discharging port (202) at the other end of the auger conveyor (200);
the pyrolysis box (100) is arranged on a rear-section vault of a high-temperature zone of the tunnel kiln (600), and the pyrolysis box (100) is arranged in a closed mode and extends along the length direction of the tunnel kiln (600).
2. The apparatus for pyrolysis deodorization of sludge using tunnel kiln according to claim 1, wherein the feeding scraper (400) is disposed beside the tunnel kiln (600), and the feeding scraper (400) is installed above the storage hopper (300) for transporting the sludge to be treated into the storage hopper (300).
3. The device for pyrolyzing and deodorizing sludge by using a tunnel kiln according to claim 1, wherein the discharging mechanism (500) is disposed at one side of the pyrolysis tank (100), and one end of the discharging mechanism (500) is communicated with the discharging port (202) of the auger conveyor (200) for discharging and conveying the sludge after pyrolysis treatment.
4. The device for pyrolyzing and deodorizing sludge by using a tunnel kiln according to claim 1, wherein the pyrolysis box (100) is a square frame formed by welding a cross bar, a longitudinal bar and a vertical bar, each surface of the square frame is fixed with a plate structure, and an insulating layer is arranged on the plate structure.
5. The apparatus for pyrolysis deodorization sludge using tunnel kiln according to claim 1, wherein a plurality of auger conveyors (200) are arranged in parallel in the pyrolysis box (100), and a plurality of storage hoppers (300) are provided on one side of the pyrolysis box (100) in one-to-one correspondence with the feed inlets (201) of the plurality of auger conveyors (200).
6. The device for pyrolyzing and deodorizing sludge by using a tunnel kiln according to claim 1, wherein a plurality of induced air branch pipes (110) are arranged on the auger conveyor (200) at intervals along the length direction of the auger conveyor, the induced air branch pipes (110) are communicated with an induced air main pipe (120), a fan (130) is arranged on the induced air main pipe (120), and an air outlet pipe (131) at the other end of the induced air main pipe (120) is communicated to a combustion section of the tunnel kiln (600).
7. The device for pyrolyzing and deodorizing sludge by using a tunnel kiln according to claim 1, wherein a shutter (310) is arranged between the storage hopper (300) and the feeding scraper (400), the shutter (310) is controlled to move by a driving cylinder (320), a rotation-resisting level switch (330) is arranged at the upper part and the lower part of the storage hopper (300), and the rotation-resisting level switch (330) is electrically connected with the driving cylinder (320).
8. The apparatus for pyrolysis of deodorized sludge utilizing tunnel kiln according to claim 1 characterized in that a feed airlock (341) is provided between the storage hopper (300) and the auger conveyor (200).
9. The apparatus for pyrolysis deodorization of sludge by tunnel kiln according to claim 1, wherein the spiral blade (210) of the auger conveyor (200) is provided with a notch (211) and a deflector (212) of the vertical spiral blade.
10. The device for pyrolyzing and deodorizing sludge by using a tunnel kiln according to claim 1, wherein the discharging mechanism (500) comprises a first screw conveyor (510) transversely arranged on the tunnel kiln, a second screw conveyor (520) obliquely arranged is arranged at the discharging end of the first screw conveyor (510), and a discharging scraper machine (530) is arranged at the discharging end of the second screw conveyor (520).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310654944.XA CN116874154A (en) | 2023-06-05 | 2023-06-05 | Utilize device of tunnel cave pyrolysis deodorization mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310654944.XA CN116874154A (en) | 2023-06-05 | 2023-06-05 | Utilize device of tunnel cave pyrolysis deodorization mud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116874154A true CN116874154A (en) | 2023-10-13 |
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Family Applications (1)
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| CN202310654944.XA Pending CN116874154A (en) | 2023-06-05 | 2023-06-05 | Utilize device of tunnel cave pyrolysis deodorization mud |
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