CN212102525U - Wall-scraping type propelled steel rolling oil sludge pyrolysis carbonization treatment device - Google Patents
Wall-scraping type propelled steel rolling oil sludge pyrolysis carbonization treatment device Download PDFInfo
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- CN212102525U CN212102525U CN202020772829.4U CN202020772829U CN212102525U CN 212102525 U CN212102525 U CN 212102525U CN 202020772829 U CN202020772829 U CN 202020772829U CN 212102525 U CN212102525 U CN 212102525U
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Abstract
The utility model belongs to the technical field of solid waste treatment facilities such as steel rolling fatlute and mud, a propulsive steel rolling fatlute pyrolysis carbonization processing apparatus is scraped to wall is provided, pulverize the unit including heating furnace body unit, pyrolysis carbomorphism unit and residue, heating furnace body unit is used for providing the required heat of pyrolysis and fixed pyrolysis carbomorphism unit and residue for pyrolysis carbomorphism unit and pulverizes the unit, which comprises a frame, the bell, furnace body and the lead screw that opens and shuts, pyrolysis carbomorphism unit is used for pyrolysis steel rolling fatlute, including the reaction tube, the storage silo, the booster pump, impel stirring rake and spiral and scrape the wall device, the residue pulverizes the unit and is used for carrying the residue of coming with pyrolysis carbomorphism unit and pulverizes and carry away, include and. The utility model provides a propulsive steel rolling fatlute pyrolysis carbonization processing apparatus of formula is scraped to wall has solved the problem that steel rolling fatlute glues wall and result caking.
Description
Technical Field
The utility model relates to a solid waste treatment facilities technical field such as steel rolling fatlute and mud, concretely relates to propulsive steel rolling fatlute pyrolysis carbonization processing apparatus of formula is scraped to wall.
Background
The rolling oil and the emulsion which play a role in cooling and lubricating in the cold rolling industry can be subjected to deterioration separation under the long-term high-temperature rolling effect, and then are separated by a process lubrication filtering system of steel rolling equipment to form waste oil sludge, namely steel rolling oil sludge. The original microorganisms in the steel rolling oil sludge expand in volume and have odor once fermented, and can destroy soil and water bodies after being stacked for a long time, so that the environment is greatly harmed, and the environmental protection department ranks the microorganisms as dangerous waste with the number of HW 08.
At present, small and medium-sized iron and steel enterprises generally select a transfer mode to transfer oil sludge to a unit with hazardous waste treatment qualification, but the unit quantity of the qualification in China is very small, the treatment capacity is seriously insufficient, the treatment cost is relatively high and is generally 3000-3500 Yuan/t, meanwhile, a great potential safety hazard also exists in the transportation process, and huge pressure is caused to the operation and transportation safety of the enterprises. Another common treatment mode is incineration, which can remove various harmful substances, and has safe treatment and good reduction effect, but has large equipment investment, high treatment cost and easy generation of secondary pollution (such as dioxin), and the combustion reaction conditions of the steel rolling oil sludge need to be strictly controlled. Not only wastes organic matter resources in the steel rolling oil sludge, but also causes serious air pollution. In addition, the methods of hot water washing, tempering, centrifugation, extraction and the like are required, the reagent is required to be introduced, the treatment application range is limited, the process is complex, the required precision is high, the biomass method needs to create appropriate environmental conditions, the treatment range is limited, the time consumption is long, and generally more than 6 months is required.
Chinese utility model patent with patent publication No. CN107963796A proposes a continuous steel rolling fatlute pyrolysis carbonization treatment device and method, which solves the problem that steel rolling fatlute is not suitable for long-term storage and transportation, and the utility model utilizes the high temperature oxygen-free pyrolysis carbonization principle to recover and utilize steel rolling fatlute. The oil sludge is pyrolyzed under the high-temperature oxygen-free condition and decomposed into combustible gas and pyrolysis residues, one part of heat emitted after the combustible gas is combusted is used for heating the carbonization bin, the pyrolysis temperature is maintained, continuous pyrolysis is realized, the other part of heat enters the waste heat recovery device along with high-temperature flue gas, hot water or steam is generated, extra economic benefit is generated, the flue gas is treated by the tail gas treatment system and is discharged after reaching the standard, the pyrolysis residues are cooled by the cooling chamber and then are transported out of a plant, and the material reduction amount can reach more than 90%. The utility model discloses an utilize the principle of organic matter high temperature anaerobic carbomorphism, make water, organic composition in the fatlute volatilize gradually, decompose, can not produce harmful substance such as dioxin, can also realize recycling of resource and minimizing of dangerous wastes material, this utility model simultaneously the device adopts carbomorphism pipe to arrange from top to bottom and automatic control system, makes it have compact structure, and occupation of land is little, and the investment is little, advantages such as operation safety.
However, the steel rolling sludge treatment device in the prior art still has the following problems:
1. because the steel rolling oil sludge generally has viscosity, the problem of wall adhesion is easy to occur in the process of pyrolysis and carbonization;
2. because the rolled steel oil sludge generally has viscosity, products of the rolled steel oil sludge after pyrolysis and carbonization reaction are easy to agglomerate and are difficult to send out if not crushed.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims at providing a propulsive steel rolling fatlute pyrolysis carbonization processing apparatus of formula is scraped to wall to solve steel rolling fatlute and glue the problem of wall and result caking.
In order to realize above-mentioned purpose, the utility model provides a propulsive steel rolling fatlute pyrolysis carbonization processing apparatus is scraped to wall, include: a heating furnace body unit, a pyrolysis carbonization unit and a residue crushing unit,
the heating furnace body unit is used for providing heat required by pyrolysis for the pyrolysis carbonization unit and fixing the pyrolysis carbonization unit and the residue crushing unit and comprises a frame, a furnace cover, a furnace body and an opening and closing screw rod,
the top of the frame is provided with a guide support rail, the furnace body and the furnace cover are oppositely arranged on the guide support rail and can be close to or far away from each other on the guide support rail, the opening and closing screw rod is used for controlling the opening and closing of the furnace body and the furnace cover,
the pyrolytic carbonization unit is used for pyrolyzing steel rolling oil sludge and comprises a reaction tube, a storage bin, a booster pump, a propelling stirring paddle and a spiral wall scraping device,
the reaction tube is arranged between the furnace body and the furnace cover, the discharge hole of the storage bin is communicated with the feed inlet of the reaction tube, the discharge hole of the booster pump is communicated with the feed inlet of the storage bin, the propelling stirring paddle is rotationally arranged in the reaction tube, the spiral wall scraping device is arranged on the periphery of the propelling stirring paddle and is rotationally connected with the reaction tube, and the rotating directions of the propelling stirring paddle and the spiral wall scraping device are opposite,
the residue crushing unit is used for crushing and conveying the residue conveyed by the pyrolysis carbonization unit, comprises a crushing pipe and a crushing spiral conveying device,
the feed inlet of the crushing pipe is communicated with the discharge outlet of the reaction pipe, and the crushing screw conveying device is rotatably arranged in the crushing pipe.
Further, the inlet end of the reaction tube is provided with an air inlet tube, the outlet end of the reaction tube is provided with an air outlet tube, the air inlet tube is communicated with an air supply system, the air outlet tube is communicated with an air inlet of a first air pump, and an air outlet of the first air pump is communicated with a tail gas treatment device.
Further, a waste heat cavity is arranged on the periphery of the storage bin, a cooling water tank is arranged on the periphery of the crushing pipe, a waste heat recovery spiral pipe is arranged in the cooling water tank and wound on the periphery of the crushing pipe, an air inlet of the waste heat recovery spiral pipe is communicated with the air supply system, and an air outlet of the waste heat recovery spiral pipe is communicated with an air inlet of the waste heat cavity.
Furthermore, a waste heat recovery air inlet pipe is arranged at the inlet end of the crushing pipe, a waste heat recovery air outlet pipe is arranged at the outlet end of the crushing pipe, the waste heat recovery air inlet pipe is communicated with the air supply system, the waste heat recovery air outlet pipe is communicated with a second air pump, and the second air pump is communicated with an air inlet of the waste heat cavity.
Further, the spiral wall scraping device comprises a plurality of spiral scraping strips, two ends of the reaction tube are rotatably provided with a sealing pressing seat and a sealing pressing cover, the sealing pressing seat and the sealing pressing cover are located at the same end of the reaction tube and are fixedly connected, a driven gear is arranged on the periphery of one of the sealing pressing covers and is meshed with a driving gear arranged on a power output shaft of a motor I, the spiral scraping strips are uniformly arranged around the axial lead of the reaction tube, and two ends of the spiral scraping strips are respectively fixedly connected with the two sealing pressing seats.
Further, the reaction tube comprises a drying area, a crushing area and a pyrolysis carbonization area, the drying area is positioned at the feed port end of the reaction tube, the crushing area is positioned at the discharge port end of the reaction tube, the pyrolysis carbonization area is positioned between the drying area and the crushing area,
impel the stirring rake and include first main shaft, impel paddle and cut up the sword, first main shaft rotates to be set up in the reaction tube, its both ends respectively with two sealed compress tightly lid fixed connection, just the power input end of first main shaft is connected with motor II, impel the paddle setting and be in the part of first main shaft is located dry area, it sets up to cut up the sword the first main shaft be located stir the part in garrulous area.
Further, the included angle between the propelling paddle and the axis of the first main shaft is alpha, the included angle alpha is 55-65 degrees, the cutting oblique angle of the chopping blade is beta, the included angle beta is 40-50 degrees, the cutting edge included angle gamma of the chopping blade is 15-25 degrees.
Further, the grinding spiral conveying device comprises a second main shaft, a spiral blade and a plurality of mounting strips, the second main shaft is rotatably arranged in the grinding pipe, the power input end of the second main shaft is connected with a motor III, the inner side of the spiral blade is fixedly connected with the second main shaft through a spiral strut, a certain gap is formed between the spiral blade and the second main shaft, the mounting strips are uniformly arranged around the axis of the second main shaft and are fixedly connected with the spiral blade, the distance between the outer side of the mounting strip and the outer side of the spiral blade is 4-6mm, and one side of any one of the mounting strips facing the rotating direction of the second main shaft is fixedly provided with a plurality of grinding blades.
The utility model has the advantages that:
the utility model provides a propulsive steel rolling fatlute pyrolysis carbonization processing apparatus of formula is scraped to wall sets up the spiral wall built-up device through the periphery that sets up at the propulsion stirring rake of reaction tube to solved fatlute and glued the problem of wall, cut up the sword and pulverize spiral delivery mechanism through setting up on the propulsion stirring rake in pulverizing intraductal setting, thereby solved the problem of product caking.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a perspective view of a wall-scraping type propelled rolled steel sludge pyrolysis carbonization treatment device according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the wall-scraping propelled rolled steel sludge pyrolytic carbonization treatment apparatus shown in FIG. 1;
FIG. 3 is a perspective view of a heating furnace unit of the wall-scraping type propelled rolled steel sludge pyrolysis carbonization treatment device shown in FIG. 2;
FIG. 4 is a cross-sectional view of a pyrolytic carbonization unit of the wall-scraping propelled rolled steel sludge pyrolytic carbonization treatment apparatus shown in FIG. 2;
FIG. 5 is a perspective view of a stirring paddle for pushing a pyrolysis and carbonization unit of the wall-scraping type pushed rolled steel sludge pyrolysis and carbonization treatment device shown in FIG. 4;
FIG. 6 is a top view of the pushing paddle of FIG. 5;
FIG. 7 is a left side view of the pushing paddle of FIG. 5;
FIG. 8 is a front view of the pusher paddle of FIG. 5;
FIG. 9 is a sectional view of the residue crushing unit of the wall-scraping propelled rolled steel sludge pyrolytic carbonization treatment apparatus shown in FIG. 2;
FIG. 10 is a perspective view of a grinding screw conveyor of the residue grinding unit of the wall-scraping propelled rolled steel sludge pyrolytic carbonization treatment apparatus shown in FIG. 9;
FIG. 11 is a front view of the grinding screw conveyor shown in FIG. 10;
FIG. 12 is a left side view of the grinding auger shown in FIG. 11.
Reference numerals:
100-heating furnace body unit, 110-frame, 111-guide support rail, 120-furnace cover, 130-furnace body, 140-opening and closing screw rod, 150-sliding rod, 160-hoop seat, 200-pyrolysis carbonization unit, 210-reaction tube, 211-air inlet tube, 212-air outlet tube, 213-first air pump, 214-drying zone, 215-crushing zone, 216-pyrolysis carbonization zone, 220-storage bin, 221-gate, 230-booster pump, 240-propulsion stirring paddle, 241-first main shaft, 242-propulsion paddle, 243-crushing blade, 244-motor II, 250-spiral wall scraping device, 251-spiral scraping strip, 252-sealing pressing seat, 253-sealing pressing cover, 254-driven gear, 255-motor I, 256-driving gear, 260-waste heat cavity, 300-residue grinding unit, 310-grinding pipe, 311-waste heat recovery air inlet pipe, 312-waste heat recovery air outlet pipe, 313-second air pump, 314-second dust filter, 320-grinding spiral conveying device, 321-second main shaft, 322-spiral blade, 323-mounting bar, 324-motor III, 325-spiral support, 326-grinding blade, 327-reverse spiral blade, 330-discharging pipe, 340-cooling water tank and 350-waste heat recovery spiral pipe.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1-12, the utility model provides a wall-scraping type propelled rolled steel fatlute pyrolysis carbonization treatment device, which comprises a heating furnace body unit 100, a pyrolysis carbonization unit 200 and a residue crushing unit 300.
The heating furnace body unit 100 is used for providing heat required for pyrolysis to the pyrolysis and carbonization unit 200, and also used for fixing the pyrolysis and carbonization unit 200 and the residue crushing unit 300, and includes a frame 110, a furnace cover 120, a furnace body 130, and an opening and closing screw 140.
The top of the frame 110 is provided with a guide support rail 111, and the furnace body 130 and the furnace cover 120 are relatively arranged on the guide support rail 111 and can move close to or away from each other on the guide support rail 111, for example, the furnace body 130 is fixedly connected with the guide support rail 111, the furnace cover 120 is slidably connected with the guide support rail 111, or the furnace cover 120 is fixedly connected with the guide support rail 111, and the furnace body 130 is slidably connected with the guide support rail 111, or the furnace body 130 and the furnace cover 120 are both connected with the guide support rail 111.
The opening and closing screw 140 is used for controlling the opening and closing of the furnace body 130 and the furnace cover 120. Specifically, a screw of the opening and closing screw 140 is rotatably connected to one of the furnace body 130 or the furnace cover 120, and a nut is fixedly connected to the other of the furnace body 130 or the furnace cover 120. Thus, the opening and closing of the furnace body 130 and the furnace cover 120 can be controlled by rotating the screw. Preferably, a slide bar 150 is further installed between the furnace body 130 and the furnace cover 120, and the slide bar 150 is slidably coupled to at least one of the furnace body 130 and the furnace cover 120 so as to guide the relative movement of the furnace body 130 and the furnace cover 120.
The pyrolysis carbonization unit 200 is used for pyrolyzing the rolled steel sludge. It comprises a reaction tube 210, a storage bin 220, a booster pump 230, a propelling stirring paddle 240 and a spiral wall scraping device 250.
The reaction tube 210 is installed between the furnace body 130 and the furnace cover 120. Specifically, an installation cavity is formed after the furnace body 130 and the furnace cover 120 are closed, two ends of the installation cavity are provided with the hoop bases 160, and the reaction tube 210 is located in the installation cavity and is fixedly connected with the furnace body 130 and the furnace cover 120 through the hoop bases 160.
The discharge port of the storage bin 220 is communicated with the feed port of the reaction tube 210. Preferably, the outlet of the storage bin 220 is provided with a gate 221 to prevent the outflow of flue gas from the reaction tube 210, and to adjust the flow rate of sludge into the reaction tube 210. The discharge port of the booster pump 230 is communicated with the feed port of the storage bin 220.
The propeller 240 is used to push the oil sludge from the inlet of the reaction tube 210 to the outlet of the reaction tube 210, and is also used to perform preliminary grinding on the reacted residue, and is rotatably installed in the reaction tube 210.
The spiral wall scraping device 250 is used for scraping off the sludge on the inner wall of the reaction tube 210 to prevent the sludge from being adhered to the inner wall of the reaction tube 210, thereby increasing the feed propelling force and even causing the propelling stirring paddle 240 to be locked, and is arranged on the periphery of the propelling stirring paddle 240 and rotatably connected with the reaction tube 210.
The impeller paddles 240 and the auger wall unit 250 rotate in opposite directions so that the bi-directional rotation promotes sludge movement and comminution performance.
The residue crushing unit 300 is used for crushing and conveying the residue conveyed by the pyrolysis carbonization unit 200, and comprises a crushing pipe 310 and a crushing screw conveyer 320.
The inlet of the pulverizing pipe 310 is communicated with the outlet of the reaction pipe 210. Specifically, the crushing pipe 310 is located below the reaction pipe 210, and a feed inlet at an upper side thereof is communicated with a discharge outlet at a lower side of the reaction pipe 210, and a discharge outlet at a lower side thereof is communicated with the discharge pipe 330. The grinding screw conveyor 320 for grinding and conveying the residue is rotatably installed in the grinding pipe 310.
In one embodiment, the inlet end of the reaction tube 210 is provided with an inlet tube 211, and the outlet end is provided with an outlet tube 212. The intake pipe 211 communicates with an air supply system (not shown in the drawings). The gas outlet pipe 212 is communicated with the gas inlet of the first air pump 213, and the tail gas can be prevented from entering the grinding pipe 310 by arranging the first air pump 213. The gas outlet of the first air pump 213 is communicated with a tail gas treatment device.
N in gas supply systems2Enters the reaction tube 210 through the gas inlet tube 211, and oxygen in the reaction tube 210 may be discharged before pyrolysis to provide an oxygen-free environment. During pyrolysis, by inputting N2To carry off-gases generated in the pyrolysis reaction. And the exhaust gas is sent into the exhaust gas treatment device for exhaust gas treatment under the action of the first air pump 213, so as to facilitate harmless emission.
This configuration helps to provide an oxygen-free environment for the pyrolysis reaction, while also helping to transport the off-gas.
In one embodiment, the storage bin 220 is installed with a waste heat chamber 260 at the periphery thereof, and the grinding pipe 310 is installed with a cooling water tank 340 at the periphery thereof, although the cooling water tank 340 is provided with a water inlet and a water outlet so that cooling water flows to enhance the cooling effect. A waste heat recovery spiral pipe 350 is installed in the cooling water tank 340, the waste heat recovery spiral pipe 350 is wound on the periphery of the grinding pipe 310, an air inlet of the waste heat recovery spiral pipe 350 is communicated with an air supply system, and an air outlet of the waste heat recovery spiral pipe 350 is communicated with the waste heat cavity 260.
N in gas supply systems2And the waste heat recovery spiral pipe 350 absorbs the cooling water in the water tank and the heat of the residue in the grinding pipe 310, and then the waste heat chamber 260 heats the oil sludge in the storage bin 220, so that the flowability of the oil sludge is improved.
This structure not only can retrieve the waste heat in the residue to utilize the waste heat to give the fatlute of storage silo 220 in the heating, with the mobility that improves fatlute, still give higher initial temperature of fatlute simultaneously, so that the pyrolysis and the transport of fatlute in reaction tube 210.
In one embodiment, the inlet end of the grinding pipe 310 is provided with a waste heat recovery inlet pipe 311, and the outlet end is provided with a waste heat recovery outlet pipe 312. The waste heat recovery intake pipe 311 is communicated with an air supply system. The waste heat recovery outlet pipe 312 is communicated with a second air pump 313. The second suction pump 313 is in communication with the waste heat chamber 260. Using a second pump 313 to prevent N2Is discharged from the outlet of the grinding pipe 310. Preferably, a second dust filter 314 is installed on the waste heat recovery outlet pipe 312 so as to filter dust in the gas.
N in gas supply systems2Enters the grinding pipe 310 to absorb heat of the residue in the grinding pipe 310 and is sent into the waste heat chamber 260 by the second suction pump 313.
N2The waste heat can be better absorbed by directly entering the crushing pipe 310, the recovery efficiency of the waste heat is improved, and the waste heat can be absorbed and utilized together with the waste heat recovery spiral pipe 350, so that the recovery efficiency of the waste heat is further improved.
In one embodiment, the spiral wall scraping device 250 comprises a plurality of spiral scraping strips 251, a sealing pressing seat 252 and a sealing pressing cover 253 are rotatably mounted at both ends of the reaction tube 210, and the sealing pressing seat 252 and the sealing pressing cover 253 at the same end of the reaction tube 210 are fixedly connected, preferably through bolts, so as to facilitate disassembly and repair. And a driven gear 254 is installed at the periphery of one of the two sealing pressing covers 253, and the driven gear 254 is engaged with a driving gear 256 installed on a power output shaft of the motor I255. A plurality of spiral scraping strips 251 are uniformly distributed around the axial lead of the reaction tube 210, and both ends of each spiral scraping strip 251 are fixedly connected with the two sealing pressing seats 252, preferably, the spiral scraping strips 251 are fixedly connected with the sealing pressing seats 252 through bolts, so that the spiral scraping strips are convenient to disassemble and repair. Of course, the outer side of the spiral bar 251 is in contact with the inner wall of the reaction tube 210.
The motor I255 drives the sealing pressing seat 252 to rotate, and the sealing pressing seat 252 drives the spiral scraping strip 251 to rotate, so that oil sludge on the inner wall of the reaction tube 210 is scraped, and the oil sludge is prevented from being adhered to the wall. Meanwhile, the spiral scraping strips 251 can also play a role in pushing oil sludge.
In one embodiment, reaction tube 210 includes a drying zone 214, a mashing zone 215, and a pyrolysis carbonization zone 216. The drying zone 214 is located at the feed port end of the reaction tube 210, the mashing zone 215 is located at the discharge port end of the reaction tube 210, and the pyrolysis carbonization zone 216 is located between the drying zone 214 and the mashing zone 215. Of course, in practical applications, the length of the reaction zone is much longer than the drying zone 214 and the mashing zone 215, so that the sludge stays in the reaction zone for a sufficient time, usually 15-20min, to ensure the sufficiency of the reaction. The sludge enters the reaction tube 210, is dried by the drying zone 214, and then enters the reaction zone to undergo a pyrolysis carbonization reaction, and the residue from the reaction zone is primarily crushed in the crushing zone 215.
The impeller 240 includes a first main shaft 241, a plurality of impeller blades 242, and a plurality of chopping blades 243. The first main shaft 241 is rotatably installed in the reaction tube 210, two ends of the first main shaft are rotatably connected with the two sealing pressing covers 253 respectively, and a power input end of the first main shaft 241 is connected with the motor II 244. A plurality of propelling blades 242 are fixedly installed at a portion of the first main shaft 241 located at the drying zone 214. Specifically, the plurality of propelling blades 242 are equally divided into two groups, each group still has a plurality of propelling blades 242, the two groups of propelling blades 242 are respectively located on two sides of the first main shaft 241, and the propelling blades 242 in the two groups are arranged in a staggered manner.
The plurality of shredding blades 243 are fixedly installed on the portion of the first main shaft 241 located in the shredding region 215, specifically, the plurality of shredding blades 243 are divided into two groups, each group still has a plurality of shredding blades 243, the two groups of shredding blades 243 are respectively located on two sides of the first main shaft 241, and the shredding blades 243 in the two groups are arranged in a staggered manner.
The motor II244 drives the first main shaft 241 to rotate, and the first main shaft 241 drives the propelling blade 242 and the shredding blade 243 to rotate, so that the dual purposes of pushing oil sludge and shredding residue can be achieved. Meanwhile, the main shaft positioned in the reaction zone part is not provided with the propelling paddle 242, so that the moving speed of the oil sludge in the reaction zone can be reduced, the staying time of the oil sludge in the reaction zone is long enough, and the reaction is more sufficient.
In one embodiment, the propulsion blades 242 are angled at an angle α with respect to the axis of the first main shaft 241, the angle α being 55-65 °. The speed of the sludge being pushed is controlled by controlling the angle alpha, preferably 60 deg.. The chopping edge 243 has a cutting bevel angle β of 40-50 ° by controlling the cutting bevel angle β to control the effect of the cutting, preferably 45 °. The cutting edge 243 has an included angle γ of 15-25 °, preferably 20 ° by controlling the included angle γ of the cutting edge to control the sharpness of the cutting edge.
In one embodiment, grinding screw conveyor 320 includes a second main shaft 321, a screw blade 322, and a plurality of mounting bars 323. The second main shaft 321 is rotatably mounted in the grinding tube 310, and its power input is connected to the motor III 324. The inner side of the spiral blade 322 is fixedly connected to the second main shaft 321 through a spiral strut 325, and a certain gap is formed between the spiral blade 322 and the second main shaft 321. I.e., the spiral blades 322 are not fully helical, which may reduce the material transport rate. A plurality of mounting bars 323 are uniformly arranged around the axis of the second main shaft 321 and fixedly connected to the spiral blade 322, and in this embodiment, two mounting bars 323 are used, which are respectively located at two sides of the circumference. And the outer side of the mounting bar 323 is 4-6mm away from the outer side of the spiral blade 322. Therefore, the installation strip 323 is guaranteed not to be used for conveying materials, and the installation strip 323 has the functions of crushing and chopping the materials and also has the function of throwing the materials so as to promote the heat dissipation and the crushing of the materials. A plurality of grinding blades 326 are fixedly attached to one side of any one of the plurality of mounting bars 323 facing the rotation direction of the second main shaft 321.
In particular, the grinding edge 326 has the shape of a quadrangular pyramid with a base in the shape of a rhombus with a smallest interior angle of 40-50 °, preferably 45 °, pointing towards the centre point of the base. The longer sides of which are angled at 25-29 deg., preferably 27 deg., to the base. One half of the bottom surface of the spindle is fixedly connected to the mounting bar 323, and the other half extends in the direction of the second spindle 321.
Preferably, the second main shaft 321 at the outlet end of the grinding pipe 310 is provided with a fully helical reverse spiral blade 327 to prevent the material from being squeezed with the outlet end of the grinding pipe 310.
The motor III324 drives the second main shaft 321 to rotate, the second main shaft 321 drives the spiral blade 322 and the grinding blade 326 mounted on the mounting bar 323 to rotate, and the grinding blade 326 and the material move relatively while the material is pushed by the spiral blade 322, so that the grinding blade 326 can crush the material, thus achieving the dual purposes of conveying and crushing the material.
The working principle of the utility model is as follows:
preheating the device before use, starting the heating furnace body 130 unit, heating the reaction tube 210 to 600-2，N2After being heated in the reaction tube 210, the waste heat is transferred to the waste heat chamber 260 through the crushing tube 310 and then through the waste heat recovery tube, thereby heating the storage bin 220.
Then, the booster pump 230 is turned on to input the oil sludge into the storage bin 220, and the oil sludge in the storage bin 220 is heated under the action of the hot gas in the waste heat chamber 260, so that the fluidity of the oil sludge is enhanced. Then, the gate 221 is opened, so that the heated oil sludge enters the drying zone 214 of the reaction tube 210, the motor II244 drives the propelling stirring paddle 240 to rotate, and the oil sludge is conveyed to the reaction zone under the action of the propelling stirring paddle 240, so as to perform the pyrolysis carbonization reaction. The residue after pyrolysis and carbonization is conveyed to the crushing area 215 under the action of the pushing stirring paddle 240, is primarily crushed by the crushing blade 243, and is discharged from the discharge port of the reaction tube 210 into the crushing tube 310. At the same time, the motor I255 drives the spiral wall scraping device 250 to rotate, and under the action of the spiral scraping bar 251, the sludge adhered to the inner wall of the reaction tube 210 is scraped.
The motor III324 drives the grinding screw 320 to rotate, thereby grinding the residue inputted into the grinding pipe 310 and discharging it from the outlet of the grinding pipe 310.
In the process, N is introduced into the air inlet pipe 211, the waste heat recovery spiral pipe 350 and the waste heat recovery air inlet pipe 3112. The N2 introduced from the intake pipe 211 enters the reaction tube 210, and enters the exhaust gas treatment device together with the exhaust gas in the reaction tube 210 through the first suction pump 213 to perform the exhaust gas treatment. The nitrogen gas introduced from the waste heat recovery coil 350 is introduced into the waste heat chamber 260 after absorbing heat of the cooling water in the cooling water tank 340 and the residue in the grinding pipe 310. From waste heat recoveryTake in N entered in the intake pipe 3112Enters the grinding pipe 310, absorbs the heat of the residue, and flows into the waste heat chamber 260 by the second suction pump 313. The exhaust gas in the waste heat chamber 260 flows into the exhaust gas treatment device for exhaust gas treatment.
Of course, the utility model discloses except being used for handling steel rolling fatlute, can also be used to handle other mud, fatlute or the mixture of mud and fatlute, and other rubbish etc..
In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (8)
1. The utility model provides a propulsive steel rolling fatlute pyrolysis carbonization processing apparatus of wall scraping formula which characterized in that: the method comprises the following steps: a heating furnace body unit, a pyrolysis carbonization unit and a residue crushing unit,
the heating furnace body unit is used for providing heat required by pyrolysis for the pyrolysis carbonization unit and fixing the pyrolysis carbonization unit and the residue crushing unit and comprises a frame, a furnace cover, a furnace body and an opening and closing screw rod,
the top of the frame is provided with a guide support rail, the furnace body and the furnace cover are oppositely arranged on the guide support rail and can be close to or far away from each other on the guide support rail, the opening and closing screw rod is used for controlling the opening and closing of the furnace body and the furnace cover,
the pyrolytic carbonization unit is used for pyrolyzing steel rolling oil sludge and comprises a reaction tube, a storage bin, a booster pump, a propelling stirring paddle and a spiral wall scraping device,
the reaction tube is arranged between the furnace body and the furnace cover, the discharge hole of the storage bin is communicated with the feed inlet of the reaction tube, the discharge hole of the booster pump is communicated with the feed inlet of the storage bin, the propelling stirring paddle is rotationally arranged in the reaction tube, the spiral wall scraping device is arranged on the periphery of the propelling stirring paddle and is rotationally connected with the reaction tube, and the rotating directions of the propelling stirring paddle and the spiral wall scraping device are opposite,
the residue crushing unit is used for crushing and conveying the residue conveyed by the pyrolysis carbonization unit, comprises a crushing pipe and a crushing spiral conveying device,
the feed inlet of the crushing pipe is communicated with the discharge outlet of the reaction pipe, and the crushing screw conveying device is rotatably arranged in the crushing pipe.
2. The wall-scraping type propelled rolled steel oil sludge pyrolysis carbonization treatment device as claimed in claim 1, wherein: the reaction tube is characterized in that an air inlet pipe is arranged at the feed port end of the reaction tube, an air outlet pipe is arranged at the discharge port end of the reaction tube, the air inlet pipe is communicated with an air supply system, the air outlet pipe is communicated with an air inlet of a first air pump, and an air outlet of the first air pump is communicated with a tail gas treatment device.
3. The wall-scraping type propelled rolled steel oil sludge pyrolysis carbonization treatment device according to claim 2, characterized in that: the waste heat recycling device is characterized in that a waste heat cavity is formed in the periphery of the storage bin, a cooling water tank is arranged on the periphery of the crushing pipe, a waste heat recycling spiral pipe is arranged in the cooling water tank and wound on the periphery of the crushing pipe, the air inlet of the waste heat recycling spiral pipe is communicated with the air supply system, and the air outlet of the waste heat recycling spiral pipe is communicated with the air inlet of the waste heat cavity.
4. The wall-scraping type propelled rolled steel oil sludge pyrolysis carbonization treatment device according to claim 3, characterized in that: the grinding pipe is characterized in that a waste heat recovery air inlet pipe is arranged at the inlet end of the grinding pipe, a waste heat recovery air outlet pipe is arranged at the outlet end of the grinding pipe, the waste heat recovery air inlet pipe is communicated with the air supply system, the waste heat recovery air outlet pipe is communicated with a second air pump, and the second air pump is communicated with an air inlet of the waste heat cavity.
5. The wall-scraping type propelled rolled steel oil sludge pyrolysis carbonization treatment device as claimed in claim 1, wherein: the spiral wall scraping device comprises a plurality of spiral scraping strips, wherein two ends of the reaction tube are respectively rotatably provided with a sealing pressing seat and a sealing pressing cover, the two ends of the reaction tube are positioned at the same end of the reaction tube, the sealing pressing seat and the sealing pressing cover are fixedly connected, a driven gear is arranged on the periphery of one of the sealing pressing covers, the driven gear is meshed with a driving gear arranged on a power output shaft of a motor I, the spiral scraping strips are uniformly arranged around the axial lead of the reaction tube, and the two ends of the spiral scraping strips are respectively fixedly connected with the two sealing pressing seats.
6. The wall-scraping type propelled rolled steel oil sludge pyrolysis carbonization treatment device according to claim 5, characterized in that: the reaction tube comprises a drying area, a crushing area and a pyrolysis carbonization area, the drying area is positioned at the feed port end of the reaction tube, the crushing area is positioned at the discharge port end of the reaction tube, the pyrolysis carbonization area is positioned between the drying area and the crushing area,
impel the stirring rake and include first main shaft, impel paddle and cut up the sword, first main shaft rotates to be set up in the reaction tube, its both ends respectively with two sealed compress tightly lid fixed connection, just the power input end of first main shaft is connected with motor II, impel the paddle setting and be in the part of first main shaft is located dry area, it sets up to cut up the sword the first main shaft is located stir the part in garrulous area.
7. The wall-scraping type propelled rolled steel oil sludge pyrolysis carbonization treatment device according to claim 6, characterized in that: the included angle between the propelling paddle and the axis of the first spindle is alpha, the included angle alpha is 55-65 degrees, the cutting oblique angle of the chopping blade is beta, the included angle beta is 40-50 degrees, the cutting edge included angle gamma of the chopping blade is 15-25 degrees.
8. The wall-scraping type propelled rolled steel oil sludge pyrolysis carbonization treatment device as claimed in claim 1, wherein: the grinding spiral conveying device comprises a second main shaft, a spiral blade and a plurality of mounting strips, wherein the second main shaft is rotatably arranged in the grinding pipe, the power input end of the second main shaft is connected with a motor III, the inner side of the spiral blade is fixedly connected with the second main shaft through a spiral strut, a certain gap is formed between the spiral blade and the second main shaft, the mounting strips are uniformly arranged around the axis of the second main shaft and fixedly connected with the spiral blade, the distance between the outer side of the mounting strip and the outer side of the spiral blade is 4-6mm, and one side, facing the rotating direction of the second main shaft, of any one of the mounting strips is fixedly provided with a plurality of grinding blades.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111423086A (en) * | 2020-05-11 | 2020-07-17 | 重庆科技学院 | Wall-scraping type propelled steel rolling oil sludge pyrolysis carbonization treatment device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111423086A (en) * | 2020-05-11 | 2020-07-17 | 重庆科技学院 | Wall-scraping type propelled steel rolling oil sludge pyrolysis carbonization treatment device and method |
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