CN115893786A - Microwave pyrolysis sludge drying system and device - Google Patents
Microwave pyrolysis sludge drying system and device Download PDFInfo
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- CN115893786A CN115893786A CN202211704668.5A CN202211704668A CN115893786A CN 115893786 A CN115893786 A CN 115893786A CN 202211704668 A CN202211704668 A CN 202211704668A CN 115893786 A CN115893786 A CN 115893786A
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 94
- 239000010802 sludge Substances 0.000 title claims abstract description 92
- 238000001035 drying Methods 0.000 title claims abstract description 57
- 238000011084 recovery Methods 0.000 claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 230000006835 compression Effects 0.000 claims abstract description 28
- 238000007906 compression Methods 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000004939 coking Methods 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 21
- 239000010865 sewage Substances 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000001704 evaporation Methods 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 2
- 239000002893 slag Substances 0.000 description 13
- 239000003921 oil Substances 0.000 description 10
- 230000009471 action Effects 0.000 description 4
- 244000309464 bull Species 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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
- 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
Abstract
The invention relates to the technical field of hydraulic engineering, and provides a microwave pyrolysis sludge drying system and a microwave pyrolysis sludge drying device, which comprise a steam recovery device, a microwave pyrolysis drying device, a pyrolysis residue recovery device and an oil gas recovery device which are communicated with each other through pipelines, wherein a microwave reaction cavity and a crushing cavity which are communicated with each other are arranged in the microwave pyrolysis drying device, and two sections of compression zones are arranged in the microwave reaction cavity; according to the invention, the microwave pyrolysis drying device is provided with the microwave reaction cavity with two sections of compression zones, so that the sludge is sequentially subjected to primary extrusion in the two sections of compression zones to discharge water, the microwave reaction cavity is provided with the heating zones which are staggered with the two sections of compression zones along the direction from the sludge inlet to the sludge outlet and have sequentially increasing temperatures, the microwave pyrolysis and coking treatment can be performed twice in the process that the sludge passes through the compression zones, the water in the sludge can be rapidly reduced, the drying efficiency is accelerated, and the problem of slow evaporation of the water in the sludge in the related technology is solved.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to a microwave pyrolysis sludge drying system and a microwave pyrolysis sludge drying device.
Background
Hydraulic engineering is an engineering which is built for controlling and allocating surface water and underground water in the nature to achieve the purposes of removing harmful substances and benefiting benefits. In the hydraulic engineering construction process, the river channel is often cleaned to generate a large amount of sludge, and the sludge is often accompanied with various oil stains and is randomly discharged to cause environmental pollution. Therefore, the sludge generated during the construction of the hydraulic engineering needs to be treated by technical means. Compared with the traditional treatment mode, the microwave pyrolysis treatment is a more advantageous treatment method for sludge treatment. The non-thermal effect of microwave pyrolysis can break molecular chains to obtain more small molecular substances, and finally the average molecular weight of the product is reduced. Therefore, in the sludge heat treatment process, the microwave technology is adopted, so that the heat treatment time can be shortened, the energy consumption is reduced, and a large amount of oil resources can be recovered. In addition, the oil sludge does not generate secondary pollution after being treated, meets the principle of 'three chemical reactions', and has good industrial application prospect.
For example, CN201610158334.0 discloses a device and a method for microwave pyrolysis of sludge. The device for microwave pyrolysis of sludge comprises: a microwave reaction device, a water vapor recovery device and an oil gas recovery device which are communicated with each other. The microwave reaction device comprises a microwave reaction cavity, wherein a first microwave generator is arranged in the microwave reaction cavity, so that the microwave reaction cavity is provided with a plurality of temperature areas with sequentially increased temperatures in the direction from an inlet to an outlet of the microwave reaction cavity. The technology utilizes microwave as a heat source to replace the traditional heating method to carry out pyrolysis on sludge, adopts a sectional heating and condensing mode to respectively obtain water, pyrolysis gas and pyrolysis residues, fully utilizes heat energy in the condensing process as a heat source for drying the sludge, and achieves the purposes of energy conservation, environmental protection and sludge resource utilization.
However, the above-described treatment technique for microwave pyrolysis of sludge has been found to have the following problems in the implementation of the related art: above-mentioned microwave pyrolysis mud's processing method stirs mud through agitating unit earlier, combines microwave generator to evaporate mud moisture again, and because the moisture of mud in earlier stage is great, this kind of mode can make the moisture evaporation in the mud slower, influences the work efficiency of equipment, in addition in microwave reaction chamber microwave generator carries out the pyrolysis mummification back to mud, the easy knot of mud becomes the piece, thereby it is difficult to disperse to cause its inside heat, makes thermal conversion efficiency reduce.
Disclosure of Invention
The invention provides a microwave pyrolysis sludge drying system and a microwave pyrolysis sludge drying device, which solve the problems that water in sludge is slowly evaporated and the heat in sludge nodules and blocks is difficult to dissipate in the related technology.
The technical scheme of the invention is as follows: the utility model provides a microwave pyrolysis sludge drying system, includes vapor recovery unit, microwave pyrolysis mummification device, pyrolysis residue recovery unit and the oil gas recovery unit that communicate each other through the pipeline, be equipped with the microwave reaction chamber and the broken chamber of mutual intercommunication in the microwave pyrolysis mummification device, the microwave reaction intracavity is equipped with two sections compression zones, and mud is two sections carry out once extrusion and then discharge moisture in the compression zone in proper order, be equipped with along mud import to export orientation in the microwave reaction chamber and set up and the zone of heating that the temperature increases gradually with two sections compression zones are crisscross, and mud extrudes moisture and gets into after microwave heating mummification in the microwave reaction chamber broken intracavity, mud coking residue after the mummification accomplishes broken back and discharges to bottom pyrolysis residue recovery unit in broken intracavity, broken residue is in the pyrolysis residue recovery unit paves and turns over the face and dries in the pyrolysis residue recovery unit, obtains abundant mummification after making the residual moisture stoving in the residue, microwave pyrolysis residue recovery unit and the oil-water mixed steam that the pyrolysis residue recovery unit discharged are separated by oil-water recovery unit, and heat in the mixed steam gets into vapor recovery unit and collects.
Preferably, microwave pyrolysis mummification device includes the casing, the inboard of casing is provided with interior bull stick, first outer tube and second outer tube along its axial, the both ends of bull stick are outside including first outer tube and second outer tube cover are established, the one end of casing is provided with and is used for ordering about interior bull stick, first outer tube and the rotatory actuating mechanism of second outer tube deceleration in proper order, all be fixed with one section auger on the outer wall of interior bull stick, first outer tube and second outer tube, and is three the differential rotation forms two sections under actuating mechanism ordering about between the auger the compression region.
Preferably, the driving mechanism comprises a motor, the motor is fixedly installed at the outer side end of the shell, a first belt wheel is fixedly connected to an output shaft end of the motor, a second belt wheel is fixedly connected to the outer side wall of the first outer tube, the second belt wheel is connected with the first belt wheel through a belt in a transmission mode, a first central gear is fixedly connected to the outer end portion of the first outer tube, a first side gear is meshed with the upper portion and the lower portion of the first central gear, a first gear carrier is rotatably connected to one side of the first side gear through a rotating shaft and is rotatably connected with the shell and the inner rotating rod respectively, a second central gear is fixedly connected to the inner rotating rod close to the outer side wall of one end of the sludge outlet, second side teeth are meshed with the upper portion and the lower portion of the second central gear, a second gear carrier is rotatably connected to one side of the second side teeth through a rotating shaft and is rotatably connected with the shell and the inner rotating rod respectively, annular tooth grooves meshed with the first side gear and the second side teeth are formed in the inner walls of the two ends of the shell respectively, and a fixed disc is fixedly connected with a fixed disc through a rotating shaft and is fixedly connected with the second outer tube.
Preferably, the inner rotating rod comprises a middle rod, a first external connecting rod and a second external connecting rod, the first external connecting rod and the second external connecting rod are symmetrically arranged on two sides of the middle rod, and locking parts are arranged at two ends of the middle rod.
Preferably, the locking component comprises a first electromagnetic ring, a spring and a second electromagnetic ring, two ends of the spring are respectively and fixedly connected with the first electromagnetic ring and the second electromagnetic ring, the first electromagnetic ring is fixedly sleeved on the outer side of the middle rod, the second electromagnetic ring is rotatably sleeved on the outer sides of the first external connecting rod and the second external connecting rod, lock heads are arranged at two side ends of the middle rod, and lock holes matched with the lock heads are formed in one ends of the first external connecting rod and the second external connecting rod, which are close to the middle rod.
Preferably, the inboard of casing is fixed with interior barrel, form between the inboard of casing and the outside of interior barrel and press from both sides the chamber, the one end top of casing is provided with and runs through to press from both sides the chamber and with the communicating inlet sewer in the internal microwave reaction chamber of inner tube, the other end top of casing is provided with and presss from both sides the communicating blast pipe in chamber, the one end bottom of casing is provided with and presss from both sides the communicating drain pipe in chamber, the fixed filter screen that is provided with in bottom of interior barrel.
Preferably, the crushing cavity is a stirring cavity, one side of the stirring cavity is provided with a sewage discharge outlet communicated with the microwave reaction cavity in the inner cylinder, and the outer side wall of the second outer tube in the stirring cavity is fixedly provided with a plurality of stirring rods which are uniformly distributed.
Preferably, the bottom of the stirring cavity is provided with a discharge opening, and an electric valve is arranged in the discharge opening.
Preferably, pyrolysis residue recovery unit includes the outer box, box in the outer box sliding connection, the outer terminal surface fixed mounting of outer box has the cylinder, the output and the interior box fixed connection of cylinder, the inboard of interior box is provided with the conveyer belt, offer on the both sides inner wall of interior box and be used for carrying out the spacing direction spout that slides to the conveyer belt, the notch has been seted up to the bottom both sides of interior box, be provided with the scraping wings in the notch, the both ends of scraping wings run through interior box and with the inner wall fixed connection of outer box.
Preferably, the inner part of the outer box body is communicated with the discharge hole, a heat return pipe is arranged on one side of the top of the outer box body, and the bottom surfaces of the two ends of the inner box body are provided with feed openings.
The working principle and the beneficial effects of the invention are as follows:
1. according to the invention, the microwave pyrolysis drying device is provided with the microwave reaction cavity with two sections of compression zones, so that the sludge is sequentially extruded once in the two sections of compression zones to discharge water, the microwave reaction cavity is provided with the heating zones which are staggered with the two sections of compression zones along the direction from the sludge inlet to the sludge outlet and have sequentially increasing temperatures, the microwave pyrolysis and coking treatment can be performed twice in the process that the sludge passes through the compression zones, the water in the sludge can be rapidly reduced, the drying efficiency is accelerated, and the problem of slow evaporation of the water in the sludge in the related technology is solved;
2. according to the invention, the pyrolysis residue recovery device repeatedly paves the coked slag, so that the heat and steam in the slag can be fully dissipated, the residual moisture in the slag is dried fully, the oil-water mixed steam discharged by the microwave pyrolysis drying device and the pyrolysis residue recovery device is separated by the oil-gas recovery device, the oil-gas is separated for subsequent treatment, the heat in the oil-water mixed steam enters the steam recovery device for collection and is further supplied for hot water, the heat generated by drying treatment is utilized, the energy conversion efficiency is improved, and the problem that the heat in the sludge nodule block is difficult to dissipate in the related technology is solved;
the inner rotating rod comprises a middle rod, a first external connecting rod and a second external connecting rod, wherein two ends of the middle rod can be flexibly butted with the first external connecting rod and the second external connecting rod through locking parts, the locking parts at two ends of the middle rod have three working states, and the locking parts can be correspondingly adjusted according to the sludge transmission position in the three working states, so that the sludge can be dried, the kinetic energy loss can be reduced, the work burden of a motor can be reduced, and the transmission efficiency can be improved.
Drawings
The invention is described in further detail below with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of a microwave pyrolysis sludge drying system provided by the present invention;
FIG. 2 is a schematic structural view of a microwave pyrolysis drying device and a pyrolysis residue recovery device in a microwave pyrolysis sludge drying system provided by the invention;
FIG. 3 is a schematic cross-sectional view of a microwave pyrolysis drying device in a microwave pyrolysis sludge drying system according to the present invention;
FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3 according to the present invention;
FIG. 5 is a schematic cross-sectional view of a microwave pyrolysis drying device in a microwave pyrolysis sludge drying system according to another view angle;
FIG. 6 is an enlarged schematic view of the structure shown at B in FIG. 5 according to the present invention;
FIG. 7 is a schematic front sectional view of a microwave pyrolysis drying device in a microwave pyrolysis sludge drying system according to the present invention;
FIG. 8 is a schematic front sectional view of an inner rotary rod in a microwave pyrolysis sludge drying system according to the present invention;
FIG. 9 is an enlarged view of the structure of FIG. 8 at C according to the present invention;
FIG. 10 is a schematic view of a disassembled structure of a locking component in a microwave pyrolysis sludge drying system according to the present invention;
FIG. 11 is a schematic view of a front cross-sectional view of a pyrolysis residue recovery device in a microwave pyrolysis sludge drying system according to the present invention;
FIG. 12 is a schematic structural view of an inner box of the microwave pyrolysis sludge drying system in a first state;
FIG. 13 is a structural diagram of a second state of an inner box of the microwave pyrolysis sludge drying system according to the present invention;
FIG. 14 is a structural diagram of a third state of an inner box body in the microwave pyrolysis sludge drying system provided by the invention;
FIG. 15 is a structural diagram of a fourth state of an inner box of the microwave pyrolysis sludge drying system according to the present invention;
in the figure: 1. a water vapor recovery device; 2. a microwave pyrolysis drying device; 21. a housing; 211. a sewage inlet pipe; 212. an exhaust pipe; 213. a drain pipe; 214. an inner cylinder; 215. a filter screen; 216. a sewage draining outlet; 217. a stirring chamber; 218. a stirring rod; 219. an electrically operated valve; 22. an inner rotating rod; 221. an intermediate lever; 2211. a lock head; 222. a first extension rod; 223. a second extension rod; 2231. a lock hole; 224. a locking member; 2241. a first electromagnetic ring; 2242. a spring; 2243. a second electromagnet ring; 23. a first outer tube; 24. a second outer tube; 25. a drive mechanism; 251. a motor; 252. a first pulley; 253. a second pulley; 254. a belt; 255. a first gear carrier; 256. a first sun gear; 257. a first side gear; 258. a second gear carrier; 259. a second sun gear; 2510. a second side tooth; 2511. fixing the disc; 2512. an annular gullet; 26. a packing auger; 3. a pyrolysis residue recovery unit; 31. an outer case; 32. a heat recovery pipe; 33. an inner box body; 34. a cylinder; 35. a conveyor belt; 36. a guide chute; 37. a material pushing plate; 38. a feeding port; 39. a notch; 4. an oil gas recovery device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a microwave pyrolysis sludge drying system and a device thereof, comprises a vapor recovery device 1, a microwave pyrolysis drying device 2, a pyrolysis residue recovery device 3 and an oil vapor recovery device 4 which are mutually communicated, wherein a microwave reaction chamber and a crushing chamber which are mutually communicated are arranged in the microwave pyrolysis drying device 2, two sections of compression zones are arranged in the microwave reaction chamber, sludge is sequentially extruded once in the two sections of compression zones and then water is discharged, a heating zone which is staggered with the two sections of compression zones and sequentially increases in temperature is arranged in the microwave reaction chamber along the direction from a sludge inlet to an outlet (the sludge inlet is specifically a sewage inlet pipe 211, and the sludge outlet is specifically a sewage outlet 216), namely a microwave generating device (not shown in the figure) is arranged in the zone, so that the sludge firstly carries out a zone with lower temperature after entering the microwave reaction chamber, the temperature of the zone is gradually increased in the zone, and the temperature of the zone is between 600 ℃ and 800 ℃, the temperature area can lead organic substances such as heavy oil, asphalt and the like in the sludge to be completely cracked due to high temperature, thereby realizing pyrolysis treatment under a microwave environment, then the sludge enters an area section with higher temperature, the temperature of the area section is rapidly raised, the temperature of the area section is between 800 ℃ and 900 ℃, pyrolysis residues can be completely coked under the temperature, further, coking treatment of the pyrolysis residues is realized, the sludge extrudes water in a microwave reaction cavity and enters a crushing cavity after being heated and dried by microwaves, the sludge coking residues are discharged into a bottom pyrolysis residue recovery device 3 after being crushed in the crushing cavity, the crushed coking residues are repeatedly paved and turned over in the pyrolysis residue recovery device 3, so that the residual water in the residues is fully dried after being dried, oil-water mixed steam discharged by the microwave pyrolysis device 2 and the pyrolysis residue recovery device 3 is separated by a dried oil-gas recovery device 4, the oil gas is separated out for subsequent treatment, the heat in the oil-water mixed steam enters the steam recovery device 1 for collection, and then is supplied to hot water for use, and the heat generated by drying treatment is utilized, so that the maximum energy conversion benefit is achieved.
Referring to fig. 2 to 6, the microwave pyrolysis drying device 2 includes a housing 21, an inner rotating rod 22, a first outer tube 23 and a second outer tube 24 are axially disposed inside the housing 21, the first outer tube 23 and the second outer tube 24 are sleeved outside two ends of the inner rotating rod 22, one end of the housing 21 is provided with a driving mechanism 25 for driving the inner rotating rod 22, the first outer tube 23 and the second outer tube 24 to rotate at a reduced speed in sequence, a section of packing auger 26 is fixed on outer walls of the inner rotating rod 22, the first outer tube 23 and the second outer tube 24, the three packing augers 26 are driven by the driving mechanism 25 to rotate at a differential speed to form two sections of compression zones, sludge is accumulated and compressed when passing through the two sections of compression zones, and then water is compressed, and drying efficiency is increased, as shown in fig. 4 and 6, the driving mechanism 25 includes a motor 251, the motor 251 is fixedly mounted at an outer end of the housing 21, an output shaft of the motor 251 is fixedly connected with a first belt wheel 252, a second belt wheel 253 is fixedly connected to the outer side wall of the first outer pipe 23, the second belt wheel 253 is in transmission connection with the first belt wheel 252 through a belt 254, a first central gear 256 is fixedly connected to the outer end portion of the first outer pipe 23, a first side gear 257 is meshed with the upper portion and the lower portion of the first central gear 256, one side of the first side gear 257 is rotatably connected with a first gear carrier 255 through a rotating shaft, the first gear carrier 255 is rotatably connected with the shell 21 and the inner rotary rod 22 respectively, a second central gear 259 is fixedly connected to the outer side wall of one end, close to the sludge outlet, of the inner rotary rod 22, a second side gear 2510 is meshed with the upper portion and the lower portion of the second central gear 259, one side of the second side gear 2510 is rotatably connected with a second gear carrier 258 through a rotating shaft, the second gear carrier 258 is rotatably connected with the shell 21 and the inner rotary rod 22 respectively, inner walls of two ends of the shell 21 are provided with a first side gear 257, a second side gear carrier, the second side teeth 2510 are engaged with the annular tooth grooves 2512, the other side of the second side teeth 2510 is fixedly connected with the fixed plate 2511 through a rotating shaft, the fixed plate 2511 is fixedly connected with the second outer tube 24, the first belt wheel 252 can be driven to rotate when the motor 251 works, the first central gear 256 can be driven to synchronously rotate by the first outer tube 23 under the transmission action of the belt 254, a first compression area can be formed between the first outer tube 23 and the packing auger 26 of the inner rotary rod 22 through the engagement of the first central gear 256 and the first side gear 257 and the engagement of the first side gear 257 and the annular tooth grooves 2512 on the inner wall of the shell 21, namely, the rotation speed of the inner rotary rod 22 is lower than that of the first outer tube 23, a second compression area can be formed between the second central gear 259 at the other end of the inner rotary rod 22 and the second side teeth 2510, and the engagement of the second side teeth 2510 and the annular tooth grooves 2512 on the inner wall of the shell 21, the reduction transmission can be realized, namely, the rotation speed of the second central gear 259 of the second side teeth 24 is lower than that of the inner rotary rod 22 and the packing auger 26 of the second outer tube 24 is formed.
Referring to fig. 7 and 8, the inner rotating rod 22 includes a middle rod 221, a first extension rod 222 and a second extension rod 223, the first extension rod 222 and the second extension rod 223 are symmetrically disposed at two sides of the middle rod 221, two ends of the middle rod 221 are both provided with a locking member 224, as shown in fig. 9 and 10, the locking member 224 includes a first electromagnetic ring 2241, a spring 2242, and a second electromagnetic ring 2243, two ends of the spring 2242 are respectively fixedly connected to the first electromagnetic ring 2241 and the second electromagnetic ring 2243, the first electromagnetic ring 2241 is fixedly disposed on the outer side of the middle rod 221, the second electromagnetic ring 2243 is rotatably disposed on the outer sides of the first extension rod 222 and the second extension rod 223, two ends of the middle rod 221 are provided with locking heads 2211, one ends of the first extension rod 222 and the second extension rod 223 close to the middle rod 221 are respectively provided with a locking hole 2231 adapted to the locking heads 2211, the first electromagnetic ring 2241 and the second electromagnetic ring 2243 can generate magnetic force in the power-on state, so that the middle rod 221 can approach the first extension rod 222 or the second extension rod 223, the middle rod 221 has three working states through the two end locking members 224, the first one is in butt joint with the second extension rod 223 through the right end locking member 224, when the first extension rod 222 rotates, the middle rod 221 and the second extension rod 223 do not rotate, and the second is to be connected with the first extension rod 222 through the left locking part 224, when the first extension rod 222 rotates, the middle rod 221 rotates, the second extension rod 223 does not rotate, and the third is to connect the two end locking components 224 with the first extension rod 222 and the second extension rod 223 at the same time, that is, the first electromagnetic ring 2241 and the second electromagnetic ring 2243 on the two end locking components 224 are in the power-off state, the middle rod 221 is in the middle position under the elastic force of the two end springs 2242, synchronous rotation of the first extension bar 222, the middle bar 221 and the second extension bar 223 may be achieved.
Referring to fig. 3, an inner cylinder 214 is fixed on the inner side of the casing 21, a clamping cavity is formed between the inner side of the casing 21 and the outer side of the inner cylinder 214, a sewage inlet pipe 211 penetrating through the clamping cavity and communicating with the microwave reaction cavity in the inner cylinder 214 is arranged at the top of one end of the casing 21, an exhaust pipe 212 communicating with the clamping cavity is arranged at the top of the other end of the casing 21, a drain pipe 213 communicating with the clamping cavity is arranged at the bottom of one end of the casing 21, and a filter screen 215 is fixed at the bottom of the inner cylinder 214.
Referring to fig. 3 and 6, the crushing chamber is a stirring chamber 217, a sewage outlet 216 communicated with the microwave reaction chamber in the inner cylinder 214 is formed in one side of the stirring chamber 217, a plurality of uniformly distributed stirring rods 218 are fixed on the outer side wall of the second outer tube 24 in the stirring chamber 217, a discharge outlet is formed in the bottom of the stirring chamber 217, and an electric valve 219 is arranged in the discharge outlet.
Referring to fig. 11, the pyrolysis residue recovery device 3 includes an outer box 31, an inner box 33 is slidably connected in the outer box 31, an air cylinder 34 is fixedly installed on an outer end surface of the outer box 31, an output end of the air cylinder 34 is fixedly connected with the inner box 33, a conveyor belt 35 is arranged on an inner side of the inner box 33, guide chutes 36 for limiting sliding of the conveyor belt 35 are formed on inner walls of two sides of the inner box 33, notches 39 are formed on two sides of a bottom of the inner box 33, a material pushing plate 37 is arranged in the notches 39, two ends of the material pushing plate 37 penetrate through the inner box 33 and are fixedly connected with an inner wall of the outer box 31, an inner portion of the outer box 31 is communicated with a discharge port, a heat recovery pipe 32 is arranged on one side of a top of the outer box 31, the heat recovery pipe 32 is communicated with the oil gas recovery device 4 and is used for collecting water vapor and oil gas mixture emitted by the crushed slag, and discharge ports 38 are formed in bottom surfaces of two ends of the inner box 33 and are used for discharging thoroughly dried sludge crushed slag.
The working principle and the using process of the invention are as follows: sludge to be treated enters a sludge inlet end in a microwave reaction cavity of the inner cylinder 214 through the sewage inlet pipe 211, the middle rod 221 is locked with the second external connecting rod 223 through the locking component 224 at one end, at the moment, the locking component 224 at the other end of the middle rod 221 is disconnected with the first external connecting rod 222, namely, the middle rod 221 and the second external connecting rod 223 cannot rotate when the first external connecting rod 222 rotates, the motor 251 drives the first belt pulley 252 to rotate when working, the second belt pulley 253 drives the first outer pipe 23 to rotate under the transmission action of the belt 254, and then the auger 26 on the first outer pipe 23 pushes the sludge forwards, and the sludge passes through a heating zone at a relatively low temperature continuously, so that organic substances such as heavy oil, asphalt and the like in the sludge can be completely cracked due to high temperature in the heating zone, and further pyrolysis treatment under a microwave environment is realized;
before sludge enters a compression area, the middle rod 221 is quickly locked with the second external connecting rod 223 through the locking component 224 at one end, the locking component 224 at the other end of the middle rod 221 is separated from the second external connecting rod 223, namely, when the first external connecting rod 222 rotates, the middle rod 221 rotates synchronously, but the second external connecting rod 223 does not rotate, in the process of rotating the first external pipe 23, the first external connecting rod 222 and the middle rod 221 can rotate synchronously along with the first external pipe 23 through the meshing relation of the first central gear 256 at the end part thereof, the first side gear 257 and the annular tooth groove 2512 on the inner wall of the shell 21, and the sludge can be gradually accumulated in the compression area between the first external pipe 23 and the auger 26 on the middle rod 221 by utilizing the speed reduction principle of the first external connecting rod 222 and the middle rod 221, so that the sludge can extrude excessive moisture under the compression action when passing through the area, then the sludge continues to be conveyed forward after passing through the area, before passing through the area, the middle rod 221 is kept locked with the first external connecting rod 222 and the second external connecting rod 223 simultaneously through the locking components 224 at two ends, namely when the first external connecting rod 222 rotates, the first external connecting rod 222 and the second external connecting rod 223 synchronously rotate, the sludge can be gradually accumulated in a compression area between the middle rod 221 and the auger 26 on the second external pipe 24 by utilizing the same speed reduction principle, the sludge can further extrude out excessive moisture under the compression action when passing through the area, in the process, the pyrolysis residue can be completely coked under the temperature through a heating area at relatively high temperature, further, the coking treatment of the pyrolysis residue is realized, the coking residue continues to be conveyed forward after passing through the area and then is discharged into the stirring cavity 217 through the sewage discharge port 216, the stirring rod 218 is driven to rotate by the rotation of the second external connecting rod 223, crushing the materials into slag in the stirring cavity 217, and discharging the materials by controlling the opening and closing of an electric valve 219;
as shown in fig. 11 and 12, in the initial state, the inner box 33 is located at the right side of the outer box 31, the conveyor belt 35 is located at the right end of the guide chute 36, the inner box 33 is pushed to gradually move to the left side by the cylinder 34, because the roller shaft at the right side of the conveyor belt 35 is blocked by the guide chute 36, the conveyor belt 35 can synchronously move to the left side along with the inner box 33, in the process, the electric valve 219 is synchronously opened to discharge the coked crushed slag, and the coked crushed slag can be laid on the upper surface of the conveyor belt 35, which is beneficial to the dissipation of heat and water vapor of the crushed slag until the inner box 33 is located at the left side position in the outer box 31, at this time, the device is as shown in fig. 13, and then the inner box 33 is pulled back by the cylinder 34, because the roller shaft at the right side of the conveyor belt 35 is no longer blocked by the guide chute 36, the conveyor belt 35 can stay at this position, in the process, the conveyor belt 35 works counterclockwise, crushed slag on the upper surface can be conveyed to the left side and falls on the inner wall of the bottom of the inner box body 33, the inner box body 33 moves towards the right side, the fallen crushed slag can be turned over and then spread on the inner wall of the bottom of the inner box body 33 again, heat and water vapor inside the crushed slag are further dissipated, the device is shown in fig. 14, the pushing plate 37 is fixed relative to the inner box body 33 along with the continuous right movement of the inner box body 33, so that the crushed slag at the bottom of the inner box body 33 is scraped to the bottom of the outer box body 31 through the left blanking port 38 by the pushing plate 37 in the moving process, the device is shown in fig. 15, the outer box body 31 is further collected, and the inner box body 33 and the conveyor belt 35 gradually return to the initial position, and a material pushing process is further completed.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A microwave pyrolysis sludge drying system comprises a steam recovery device (1), a microwave pyrolysis drying device (2), a pyrolysis residue recovery device (3) and an oil gas recovery device (4) which are mutually communicated through pipelines, and is characterized in that a microwave reaction cavity and a crushing cavity which are mutually communicated are arranged in the microwave pyrolysis drying device (2);
two sections of compression areas are arranged in the microwave reaction cavity, and sludge is sequentially extruded once in the two sections of compression areas so as to discharge water;
heating zones which are staggered with the two sections of compression zones and sequentially increase in temperature are arranged in the microwave reaction cavity along the direction from the sludge inlet to the sludge outlet, and the sludge extrudes water in the microwave reaction cavity, is dried by microwave heating and then enters the crushing cavity;
after the sludge coking residues are crushed in the crushing cavity, discharging the crushed sludge coking residues into a bottom pyrolysis residue recovery device (3), and spreading the crushed residues in the pyrolysis residue recovery device (3) for the second time and turning over for drying so as to fully dry the residues after drying the residual moisture in the residues;
the microwave pyrolysis drying device (2) and the pyrolysis residue recovery device (3) discharge oil-water mixed steam which is separated by the oil-gas recovery device (4), and heat in the oil-water mixed steam enters the water vapor recovery device (1) to be collected.
2. The device applied to the microwave pyrolysis sludge drying system of claim 1, wherein the microwave pyrolysis drying device (2) comprises a shell (21), an inner rotating rod (22), a first outer tube (23) and a second outer tube (24) are axially arranged on the inner side of the shell (21), the first outer tube (23) and the second outer tube (24) are sleeved at the two ends of the inner rotating rod (22), a driving mechanism (25) used for driving the inner rotating rod (22), the first outer tube (23) and the second outer tube (24) to rotate at a reduced speed in sequence is arranged at one end of the shell (21), one section of packing auger (26) is fixed on the outer wall of the inner rotating rod (22), the first outer tube (23) and the second outer tube (24), and the packing auger (26) is driven by the driving mechanism (25) to rotate at a differential speed to form two sections.
3. The microwave pyrolysis sludge drying system and device according to claim 2, wherein the driving mechanism (25) comprises a motor (251), the motor (251) is fixedly installed at the outer side end of the shell (21), an output shaft of the motor (251) is fixedly connected with a first pulley (252), a second pulley (253) is fixedly connected to the outer side wall of the first outer tube (23), the second pulley (253) is in transmission connection with the first pulley (252) through a belt (254), a first central gear (256) is fixedly connected to the outer end of the first outer tube (23), first side gears (257) are meshed with the upper and lower sides of the first central gear (256), one side of the first side gears (257) is rotatably connected with a first gear carrier (255) through a rotating shaft, the first gear carrier (255) is rotatably connected with the shell (21) and an inner rotating rod (22) respectively, a second central gear (259) is fixedly connected to the outer side wall of one end of the inner rotating rod (22) close to the sludge outlet, second side gears (259) are meshed with the upper and the lower side teeth (259) of the second central gear (259), the inner side gears (2510) are connected with the inner side gears (2510) through the second side gears (2510) and the inner side gears (2510) are connected with the inner side gears (2510) respectively connected with the inner side of the shell (21) and the inner side of the inner rotating shaft (2510) and the inner rotating shaft (2512) and the inner rotating shaft (2510) and the inner rotating shaft (32) and the inner side of the outer side of the inner rotating shaft (32) and the inner rotating shaft (2512) and the outer side of the first central gear (32) and the outer side of the outer side gear (32) and the inner rotating shaft, the other side of the second side teeth (2510) is fixedly connected with a fixed disc (2511) through a rotating shaft, and the fixed disc (2511) is fixedly connected with a second outer tube (24).
4. The microwave pyrolysis sludge drying system and device according to claim 2, wherein the inner rotating rod (22) comprises a middle rod (221), a first external connecting rod (222) and a second external connecting rod (223), the first external connecting rod (222) and the second external connecting rod (223) are symmetrically arranged at two sides of the middle rod (221), and locking parts (224) are arranged at two ends of the middle rod (221).
5. The microwave pyrolysis sludge drying system and device as claimed in claim 4, wherein the locking component (224) comprises a first electromagnetic ring (2241), a spring (2242) and a second electromagnetic ring (2243), two ends of the spring (2242) are respectively fixedly connected with the first electromagnetic ring (2241) and the second electromagnetic ring (2243), the first electromagnetic ring (2241) is fixedly sleeved on the outer side of the middle rod (221), the second electromagnetic ring (2243) is rotatably sleeved on the outer sides of the first extension rod (222) and the second extension rod (223), two end portions of the middle rod (221) are provided with locking heads (2211), and one ends of the first extension rod (222) and the second extension rod (223) close to the middle rod (221) are respectively provided with locking holes (2231) matched with the locking heads (2211).
6. The microwave pyrolysis sludge drying system and device according to claim 2, wherein an inner cylinder (214) is fixed on the inner side of the casing (21), a clamping cavity is formed between the inner side of the casing (21) and the outer side of the inner cylinder (214), a sewage inlet pipe (211) which penetrates through the clamping cavity and communicates with a microwave reaction cavity in the inner cylinder (214) is arranged at the top of one end of the casing (21), an exhaust pipe (212) which communicates with the clamping cavity is arranged at the top of the other end of the casing (21), a drain pipe (213) which communicates with the clamping cavity is arranged at the bottom of one end of the casing (21), and a filter screen (215) is fixedly arranged at the bottom of the inner cylinder (214).
7. The microwave pyrolysis sludge drying system and device as claimed in claim 6, wherein the crushing chamber is a stirring chamber (217), one side of the stirring chamber (217) is provided with a sewage outlet (216) communicated with the microwave reaction chamber in the inner cylinder (214), and the outer side wall of the second outer tube (24) in the stirring chamber (217) is fixed with a plurality of uniformly distributed stirring rods (218).
8. The microwave pyrolysis sludge drying system and device as claimed in claim 7, wherein the bottom of the stirring chamber (217) is provided with a discharge outlet, and an electric valve (219) is arranged in the discharge outlet.
9. The microwave pyrolysis sludge drying system and device according to claim 8, wherein the pyrolysis residue recovery device (3) comprises an outer box (31), an inner box (33) is slidably connected in the outer box (31), an air cylinder (34) is fixedly installed on the outer end surface of the outer box (31), the output end of the air cylinder (34) is fixedly connected with the inner box (33), a conveyor belt (35) is arranged on the inner side of the inner box (33), guide chutes (36) used for limiting the conveyor belt (35) in a sliding manner are formed in the inner walls of the two sides of the inner box (33), notches (39) are formed in the two sides of the bottom of the inner box (33), material pushing plates (37) are arranged in the notches (39), and the two ends of the material pushing plates (37) penetrate through the inner box (33) and are fixedly connected with the inner wall of the outer box (31).
10. The microwave pyrolysis sludge drying system and device according to claim 9, wherein the inside of the outer box (31) is communicated with a discharge port, a heat return pipe (32) is arranged on one side of the top of the outer box (31), and the bottom surfaces of the two ends of the inner box (33) are provided with feed openings (38).
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838096A (en) * | 2010-02-11 | 2010-09-22 | 浙江科力尔环保设备有限公司 | Sludge helix extrusion device in sewage treatment |
| CN104163555A (en) * | 2014-07-10 | 2014-11-26 | 浙江大学 | Consecutive reaction apparatus for moisture sludge through anhydration and pyrolysis under microwave irradiation as well as method thereof |
| CN107200452A (en) * | 2016-03-18 | 2017-09-26 | 中国石油化工股份有限公司 | The device and method of microwave-heating sludge |
| CN209024394U (en) * | 2018-10-31 | 2019-06-25 | 毅康科技有限公司 | A kind of microwave treatment sludge integrated apparatus |
| KR20200080880A (en) * | 2018-12-27 | 2020-07-07 | 조북룡 | Apparatus for Drying Sludge using Microwave and Heat Medium |
| CN212126843U (en) * | 2020-02-28 | 2020-12-11 | 广东吉康环境系统科技有限公司 | Sludge drying discharging device |
| CN212559927U (en) * | 2020-07-06 | 2021-02-19 | 南京攀科乐环保技术有限公司 | Multistage extrusion sludge dewatering device |
| CN213357294U (en) * | 2020-08-13 | 2021-06-04 | 河南喜存环保科技有限公司 | Solid-liquid separator capable of preventing excrement from flowing backwards and accumulating |
-
2022
- 2022-12-29 CN CN202211704668.5A patent/CN115893786B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838096A (en) * | 2010-02-11 | 2010-09-22 | 浙江科力尔环保设备有限公司 | Sludge helix extrusion device in sewage treatment |
| CN104163555A (en) * | 2014-07-10 | 2014-11-26 | 浙江大学 | Consecutive reaction apparatus for moisture sludge through anhydration and pyrolysis under microwave irradiation as well as method thereof |
| CN107200452A (en) * | 2016-03-18 | 2017-09-26 | 中国石油化工股份有限公司 | The device and method of microwave-heating sludge |
| CN209024394U (en) * | 2018-10-31 | 2019-06-25 | 毅康科技有限公司 | A kind of microwave treatment sludge integrated apparatus |
| KR20200080880A (en) * | 2018-12-27 | 2020-07-07 | 조북룡 | Apparatus for Drying Sludge using Microwave and Heat Medium |
| CN212126843U (en) * | 2020-02-28 | 2020-12-11 | 广东吉康环境系统科技有限公司 | Sludge drying discharging device |
| CN212559927U (en) * | 2020-07-06 | 2021-02-19 | 南京攀科乐环保技术有限公司 | Multistage extrusion sludge dewatering device |
| CN213357294U (en) * | 2020-08-13 | 2021-06-04 | 河南喜存环保科技有限公司 | Solid-liquid separator capable of preventing excrement from flowing backwards and accumulating |
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