CN116656383A - Thermal analysis treatment equipment for solid waste oil-containing silt - Google Patents
Thermal analysis treatment equipment for solid waste oil-containing silt Download PDFInfo
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- CN116656383A CN116656383A CN202310945665.9A CN202310945665A CN116656383A CN 116656383 A CN116656383 A CN 116656383A CN 202310945665 A CN202310945665 A CN 202310945665A CN 116656383 A CN116656383 A CN 116656383A
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- 238000002076 thermal analysis method Methods 0.000 title claims abstract description 22
- 239000002910 solid waste Substances 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 58
- 238000000197 pyrolysis Methods 0.000 claims abstract description 54
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 238000002485 combustion reaction Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 46
- 238000001816 cooling Methods 0.000 claims description 14
- 238000005057 refrigeration Methods 0.000 claims description 13
- 239000004065 semiconductor Substances 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 8
- 239000004576 sand Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 15
- 239000000110 cooling liquid Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 5
- 238000003795 desorption Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 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
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
- B01D5/0006—Coils or serpentines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0051—Regulation processes; Control systems, e.g. valves
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/28—Other processes
- C10B47/32—Other processes in ovens with mechanical conveying means
- C10B47/44—Other processes in ovens with mechanical conveying means with conveyor-screws
-
- 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 utility model relates to an oil-containing silt treatment device, in particular to solid waste oil-containing silt thermal analysis treatment equipment, which comprises a combustion chamber, a steam superheater, a pyrolysis furnace, a cyclone separator, a condenser and a secondary separator which are sequentially connected in series through pipelines; the pyrolysis furnace comprises a bottom plate, a pyrolysis furnace body and two horizontally arranged material pipes, wherein the two material pipes are arranged in the pyrolysis furnace body along the height direction, and a feed pipe and a discharge pipe are respectively arranged on the side wall close to the end parts of the two material pipes; a first connecting pipe for connecting the two material pipes is arranged on the side wall close to the other ends of the two material pipes; the pyrolysis furnace body is fixedly arranged on the top surface of the bottom plate, and the top surface of the bottom plate is also provided with a power transmission mechanism; and spiral transmission mechanisms are arranged in the two material pipes. The equipment can be fully pyrolyzed in the pyrolysis stage, and simultaneously the pyrolysis gas is cooled through two sets of cold water circulating systems, so that the number of condensers is reduced, and the design cost of the equipment is reduced.
Description
Technical Field
The utility model relates to the technical field of oil-containing silt treatment devices, in particular to thermal analysis treatment equipment for solid waste oil-containing silt.
Background
The oil-containing silt is waste residue formed by mixing oil stains left in the oilfield exploitation process with the silt, is a common type of dangerous waste, can cause soil salinization and poisoning, and can enter a food chain system through a water source or crops, so that potential safety hazards exist for animals and humans. In the prior art, chemical heat washing technology, combustion technology, pyrolysis technology, steam injection technology, normal-temperature solvent extraction technology and microorganism restoration technology are generally adopted. The pyrolysis technology is to heat the oil-containing silt to a certain temperature to crack macromolecular hydrocarbon substances in the silt to form small molecules, so that the small molecules volatilize from the silt.
In the oil-containing silt harmless treatment technology, through comparative analysis, the thermal desorption technology is one of the effective technologies for treating the oil-containing silt at present, and the technology is characterized in that the thermal desorption and pyrolysis are carried out on the oil-containing silt under the conditions of micro negative pressure and oxygen isolation, so that the residual oil in the oil-containing silt is completely recovered, and the oil-containing silt has the characteristics of high temperature rising speed, reasonable residence time of the oil-containing silt and adjustable propelling speed.
The utility model patent with the publication number of CN211035818U discloses treatment equipment for thermal analysis of hazardous waste and solid waste oily silt, which is characterized in that a steam superheater, a pyrolysis furnace, a cyclone separator, two condensers and two separators are connected in series, so that the thermal analysis of the oily silt is realized; however, the device has the following problems that firstly, in the pyrolysis furnace, an air jet pipe and a steam spray nozzle are arranged in an upper conveying channel of the pyrolysis furnace, so that heating is uneven, and secondly, a lower conveying channel cannot be heated, so that the contact time of steam and materials is only increased, the temperature of the steam is gradually reduced along the conveying direction of the conveying channel, and the thermal desorption effect in the lower conveying channel is greatly reduced; in addition, the condensers of the equipment all adopt external water pipes to exchange heat for the coils inside, the structure is simple, but the cooling effect is still poor even if the length of the coils is increased; the apparatus is provided with a two-stage condenser to completely separate the pyrolysis gas, but it results in a complicated structure and an increase in cost.
In order to solve the problems, the applicant has discovered a thermal analysis treatment device for solid waste oil-containing silt.
Disclosure of Invention
The utility model aims to provide solid waste oil-containing silt thermal analysis treatment equipment which can be fully pyrolyzed in a pyrolysis stage, and simultaneously reduces the temperature of pyrolysis gas in a pyrolysis gas cooling stage through two sets of cold water circulation systems, so that the number of condensers is reduced, and the design cost of the equipment is reduced.
The utility model is realized in such a way that the solid waste oil-containing silt thermal analysis treatment equipment comprises a combustion chamber, a steam superheater, a pyrolysis furnace, a cyclone separator, a condenser and a secondary separator which are sequentially connected in series through pipelines; the pyrolysis furnace comprises a bottom plate, a pyrolysis furnace body and two horizontally arranged material pipes, wherein the two material pipes are arranged in the pyrolysis furnace body along the height direction, and a feed pipe and a discharge pipe are respectively arranged on the side wall close to the end parts of the two material pipes; a first connecting pipe for connecting the two material pipes is arranged on the side wall close to the other ends of the two material pipes; the pyrolysis furnace body is fixedly arranged on the top surface of the bottom plate, and the top surface of the bottom plate is also provided with a power transmission mechanism; screw transmission mechanisms are arranged in the two material pipes; the power transmission mechanism is used for driving the two spiral transmission mechanisms to rotate simultaneously so as to realize the transmission of the oil-containing silt;
at least three air ejector pipes are arranged at the outlet end of the steam superheater; a plurality of spray heads are arranged on the side wall of the air jet pipe along the length direction, and three air jet pipes are respectively positioned between two material pipes and between the material pipes and the inner side wall of the pyrolysis furnace body; the end parts of the two material pipes are respectively provided with an air outlet pipe, the end parts of the two air outlet pipes, which are far away from the material pipes, are connected through a tee joint, the outlet end of the tee joint is provided with a second connecting pipe, and the end part of the second connecting pipe, which is far away from the tee joint, is connected with a cyclone separator.
Further, the screw transmission mechanism comprises a conveying shaft, a conveying blade and a bearing; the bearing is fixedly arranged at the end part of the material pipe, the conveying shaft is fixedly connected with the inner ring of the bearing, the conveying blades are spiral and fixedly sleeved on the conveying shaft, and the spiral directions of the conveying blades of the two spiral conveying mechanisms are opposite.
Further, the power transmission mechanism comprises a motor, two driving wheels and a power transmission belt; the output end of the motor is connected with the end part of the conveying shaft of one of the spiral conveying mechanisms, and the two driving wheels are respectively fixedly sleeved on the two conveying shafts; the power transmission belt is sleeved on the two driving wheels at the same time.
Further, the two air outlet pipes are provided with one-way valves.
Further, a serpentine heat exchange coil, a baffle plate and a plurality of guide plates are arranged in the condenser body, and the baffle plate and the guide plates are perpendicular to the straight line section of the heat exchange coil; the guide plates are sequentially and alternately fixedly connected with two opposite side walls of the condenser body, so that two serpentine heat exchange channels are formed in the condenser body; the outlet ends of the two serpentine channels are respectively provided with a liquid outlet pipe, and the liquid outlet ends of the two liquid outlet pipes are provided with a pressurizing device; the liquid outlet end of the pressurizing device is provided with a heat exchange tube; the outlet end of the heat exchange tube is provided with a liquid separating head, two outlet ends of the liquid separating head are respectively provided with a circulating branch pipe, and the two circulating branch pipes are respectively connected with the inlet ends of the two serpentine channels.
Further, a plurality of refrigerating devices are arranged in the side wall of the heat exchange tube at equal arc length intervals; the refrigerating device comprises two heat-conducting plates, a plurality of refrigerating semiconductors and a plurality of radiating fins; the heat conducting plate, the plurality of refrigeration semiconductors and the plurality of cooling fins are arranged along the length direction of the heat exchange tube; two ends of the plurality of refrigeration semiconductors are fixedly connected with the two heat conducting plates respectively, and the plurality of heat conducting fins are fixedly connected with the heat conducting plates close to the outer side wall of the heat exchange tube.
Further, a plurality of heat exchange brackets are arranged in the heat exchange tube along the length direction of the heat exchange tube, and the plurality of heat exchange brackets are simultaneously connected with heat conduction plates of a plurality of refrigeration devices.
Further, the pressurizing device comprises a liquid collecting head and a pump body, the liquid inlet end of the liquid collecting head is connected with the two liquid outlet pipes simultaneously, the liquid outlet end of the liquid collecting head is connected with the pump body, and the outlet end of the pump body is connected with the heat exchange pipe.
Further, temperature sensors are arranged on the side walls close to the outlet ends of the two serpentine channels.
Further, the heat exchange support, the heat conducting plate and the radiating fins are made of copper.
Compared with the prior art, the utility model has the following beneficial effects:
1. by arranging the air ejector pipes between the two material pipes and between the material pipes and the inner side wall of the pyrolysis furnace body, overheated gas is ejected through the air ejector pipes, so that the whole pyrolysis furnace body is heated, and the material pipes are heated uniformly; under the action of the spiral conveying mechanism, the oil-containing silt can be continuously subjected to thermal analysis in the moving process, and the thermal analysis effect is better;
2. the two spiral transmission mechanisms are connected through the power transmission belt, and the spiral directions of the conveying blades of the two spiral transmission mechanisms are opposite, so that materials are conveyed in opposite directions under the drive of a motor, the oil-containing silt stays in the pyrolysis furnace body for a longer time, and the pyrolysis effect of the oil-containing silt is fully realized;
3. the baffle plate and the guide plate are arranged in the condenser body, and the flow direction between the baffle plate, the guide plate and a serpentine channel formed in the condenser body and the heat exchange coil is vertical, so that the cooling water and the heat exchange coil can exchange heat fully; in addition, two serpentine channels are formed under the action of the partition plate, so that the heat exchange effect is better;
4. a plurality of refrigeration semiconductors are arranged in the side wall of the heat exchange tube, and a plurality of heat exchange brackets are arranged in the heat exchange tube at the same time, so that the temperature of the heated liquid is reduced, and the liquid is pumped into the serpentine channel through the pump body pressurization pump, thereby realizing the recycling of the cooling water;
5. the materials of the heat exchange bracket, the heat conducting plate and the radiating fin are copper, so that the heat exchange coefficient is high, and the production cost is low;
6. the temperature sensor is arranged at the outlet of the serpentine channel, so that the refrigerating power of the refrigerating semiconductor can be adjusted according to the temperature of the liquid after heat exchange, the cooling effect of the heat exchange coil is ensured, and the oil and the water in the pyrolysis gas are completely separated.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the solid waste oil-containing silt thermal analysis treatment equipment provided by the utility model;
FIG. 2 is a cross-sectional view of the internal structure of the condenser body provided by the present utility model;
FIG. 3 is an enlarged view at A in FIG. 2;
fig. 4 is a cross-sectional view at B-B in fig. 2.
Reference numerals referred to in the above figures:
1. a combustion chamber; 2. a steam superheater; 3. a first connecting pipe; 4. a gas lance; 5. a spray head; 6. a pyrolysis furnace body; 7. a material pipe; 8. an air outlet pipe; 9. a feed pipe; 10. a power transmission belt; 11. a one-way valve; 12. a third connecting pipe; 13. a second connecting pipe; 14. a tee joint; 15. a condenser body; 16. a liquid collecting head; 17. a connecting pipe IV; 18. a secondary separator; 19. a heat exchange tube; 20. a circulation branch pipe; 21. a pump body; 22. a cyclone separator; 23. a motor; 24. a bottom plate; 25. a driving wheel; 26. a discharge pipe; 27. a conveying shaft; 28. conveying blades; 29. a bearing; 30. a partition plate; 31. a deflector; 32. a serpentine channel; 33. a heat exchange coil; 34. a liquid separating head; 35. a temperature sensor; 36. a liquid outlet pipe; 37. a heat exchange bracket; 38. a refrigerating semiconductor; 39. a heat sink; 40. a heat conducting plate.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The implementation of the present utility model will be described in detail below with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-4, a preferred embodiment of the present utility model is provided.
The thermal analysis treatment equipment for the solid waste oil-containing silt comprises a combustion chamber 1, a steam superheater 2, a pyrolysis furnace, a cyclone separator 22, a condenser and a secondary separator 18 which are sequentially connected in series through pipelines; the combustion chamber 1 heats water into saturated steam, the saturated steam is heated into superheated steam through the steam superheater 2, and the superheated steam enters the pyrolysis furnace to heat a material pipe 7 in the pyrolysis furnace; as shown in fig. 1, the outlet end of the cyclone separator 22 is connected with the liquid inlet end of the condenser body 15 through a third connecting pipe 12; the liquid outlet end of the condenser body 15 is connected with a secondary separator 18 through a connecting pipe IV 17; the pyrolysis furnace comprises a bottom plate 24, a pyrolysis furnace body 6 and two horizontally arranged material pipes 7, wherein the two material pipes 7 are arranged in the pyrolysis furnace body 6 along the height direction, a feed pipe 9 and a discharge pipe 26 are respectively arranged on the side wall close to the end parts of the two material pipes 7, oil-containing silt enters from the feed pipe 9, and finally the rest waste flows out from the discharge pipe 26; a first connecting pipe 3 for connecting the two material pipes 7 is arranged on the side wall close to the other ends of the two material pipes; the pyrolysis furnace body 6 is fixedly arranged on the top surface of the bottom plate 24, and a power transmission mechanism is fixedly arranged on the top surface of the bottom plate 24; screw transmission mechanisms are arranged in the two material pipes 7; the power transmission mechanism is used for driving the two spiral transmission mechanisms to rotate simultaneously so as to realize the transmission of the oil-containing silt;
in the embodiment, three air nozzles 4 are arranged at the outlet end of the steam superheater 2; the side walls of the air ejector pipes 4 are provided with a plurality of spray heads 5 along the length direction, and the three air ejector pipes 4 are respectively positioned between the two material pipes 7 and between the material pipes 7 and the inner side walls of the pyrolysis furnace body 6, so that superheated steam is sprayed into the pyrolysis furnace body 6, and the temperature in the pyrolysis furnace body 6 can quickly reach a set temperature; the tip of two material pipes 7 all is connected with outlet duct 8, and the tip that material pipe 7 was kept away from to two outlet duct 8 is connected through tee bend 14, and tee bend 14's exit end is equipped with connecting pipe two 13, and tee bend 14 was kept away from to connecting pipe two 13 tip and cyclone 22 are connected, and this embodiment is preferred, all installs check valve 11 on two outlet duct 8, and two check valves 11 make pyrolysis gas after the thermal analysis only flow into connecting pipe two 13 in, avoid appearing in the pyrolysis gas in one outlet duct 8 flows into another outlet duct 8.
The screw transmission mechanism comprises a conveying shaft 27, a conveying blade 28 and a bearing 29; the bearing 29 is fixedly arranged at the end part of the material pipe 7, the conveying shaft 27 is fixedly connected with the inner ring of the bearing 29, the conveying blades 28 are spiral, and are fixedly sleeved on the conveying shaft 27, the spiral directions of the conveying blades 28 of the two spiral conveying mechanisms are opposite, so that the oil-containing silt entering from the feeding pipe 9 passes through the upper material pipe 7, then enters the lower material pipe 7 through the first connecting pipe 3, and finally flows out from the discharging pipe 26; in the whole conveying process, the oil-containing silt is fully heated by the material pipe 7, so that the thermal desorption effect is improved.
The power transmission mechanism comprises a motor 23, two driving wheels 25 and a power transmission belt 10; the side wall of the motor 23 is fixedly arranged on the bottom plate 24, the output end of the motor 23 is connected with the end part of the conveying shaft 27 of one of the spiral conveying mechanisms, and the two driving wheels 25 are fixedly sleeved on the two conveying shafts 27 respectively; the power transmission belt 10 is sleeved on the two driving wheels 25 at the same time, so that when the motor 23 drives the conveying shaft 27 to rotate, the other conveying shaft 27 also rotates in the same direction under the action of the power transmission belt 10; the spiral directions of the conveying blades 28 of the two spiral conveying mechanisms are opposite, so that the oil-containing silt is conveyed in opposite directions in the two material pipes 7.
As shown in fig. 2, a serpentine heat exchange coil 33, a baffle plate 30 and a plurality of baffle plates 31 are installed in the condenser body 15, the baffle plate 30 and the baffle plates 31 are perpendicular to the straight line segments of the heat exchange coil 33, and in this embodiment, the baffle plate 30 is located at the central axis of the condenser body 15; the plurality of guide plates 31 are sequentially and fixedly connected with two opposite side walls of the condenser body 15 in turn, so that two serpentine heat exchange channels are formed inside the guide plates, in the embodiment, the position of the serpentine channel 32 close to the partition plate 30 is a liquid outlet end, the position far away from the partition plate 30 is a liquid inlet end, the heat exchange effect is optimal, when a cooling liquid rod in the circulating branch pipe 20 enters the serpentine channel 32, the temperature is lowest, the heat exchange quantity is maximum, the inlet ends of the two serpentine channels 32 are respectively positioned at the inlet end and the outlet end of the heat exchange coil 33, so that pyrolysis gas just entering the heat exchange coil 33 exchanges heat with cooling liquid with the lowest temperature, and when approaching the outlet position, the pyrolysis gas is also exchanged with cooling liquid with the lowest temperature, and when the cooling liquid in the serpentine channel 32 is positioned at the middle position of the heat exchange coil 33, the cooling liquid in the position is lower than the temperature of the inlet of the pyrolysis gas, but the cooling liquid outlets in the two circulating pipelines are positioned at the middle position of the condenser body 15, the heat exchange effect is also better, and is very good cooling effect is achieved when the pyrolysis gas flows through the heat exchange coil 33; the outlet ends of the two serpentine channels 32 are connected with liquid outlet pipes 36, and the liquid outlet ends of the two liquid outlet pipes 36 are provided with a pressurizing device; the liquid outlet end of the pressurizing device is provided with a heat exchange tube 19; the outlet end of the heat exchange tube 19 is fixedly provided with a liquid separating head 34, two outlet ends of the liquid separating head 34 are connected with circulating branch pipes 20, and the two circulating branch pipes 20 are respectively connected with the inlet ends of two serpentine channels 32; the cooling water flows in the serpentine channel 32, the circulation branch pipe 20 and the heat exchange pipe 19.
4 refrigeration devices are fixedly arranged in the side wall of the heat exchange tube 19 at equal arc length intervals; the refrigeration device comprises two heat-conducting plates 40, a plurality of refrigeration semiconductors 38 and a plurality of heat-radiating fins 39; as shown in fig. 3 and 4, a heat conductive plate 40, a plurality of cooling semiconductors 38, and a plurality of heat radiating fins 39 are disposed along the length direction of the heat exchange tube 19; two ends of each refrigeration semiconductor 38 are fixedly connected with two heat conducting plates 40 respectively, and a plurality of cooling fins 39 are fixedly connected with the heat conducting plates 40 close to the outer side wall of the heat exchange tube 19.
The heat exchange tube 19 is fixedly provided with a plurality of heat exchange brackets 37 along the length direction, the heat exchange brackets 37 are cross-shaped, and four ends of the cross-shaped heat exchange brackets 37 are fixedly connected with heat conducting plates 40 of four refrigeration devices respectively.
The pressurizing device comprises a liquid collecting head 16 and a pump body 21, wherein the liquid inlet end of the liquid collecting head 16 is connected with two liquid outlet pipes 36 at the same time, the liquid outlet end of the liquid collecting head 16 is connected with the pump body 21, the outlet end of the pump body 21 is connected with the heat exchange pipe 19, the pump body 21 pressurizes cooling liquid, and the cooling liquid after cooling returns to the heat exchange pipe 19 to perform convection heat with the heat exchange support 37, so that a circulating cooling system is formed.
The side walls close to the outlet ends of the two serpentine channels 32 are fixedly provided with temperature sensors 35, and in this embodiment, a controller (not shown) and a control panel (not shown) are further provided, and all the electrical elements are electrically connected.
The material of the heat exchange bracket 37, the heat conductive plate 40 and the heat sink 39 is copper.
Working principle: when the treatment equipment is used, oil-containing silt and sand enter the material pipe 7 from the material inlet pipe 9, at the moment, the motor 23, the steam superheater 2 and the combustion chamber 1 work simultaneously, the motor 23 drives the conveying shaft 27 to rotate, and the conveying blades 28 in the two material pipes 7 rotate under the action of the driving wheel 25 and the power transmission belt 10, so that the oil-containing silt and sand are conveyed; in addition, under the heating action of the steam superheater 2 and the combustion chamber 1, the spray heads 5 on the air spray pipes 4 spray superheated steam to rapidly heat the material pipes 7 in the pyrolysis furnace body 6; heating the conveyed oil-containing silt by heat exchange of the material pipe 7; pyrolysis gas pyrolyzed from oil-containing silt is discharged from an air outlet pipe 8 and then enters a cyclone separator 22, passes through the cyclone separator 22 and generates dust, so that the dust is more convenient to separate, the pyrolysis gas enters a heat exchange coil 33 in a condenser body 15 and exchanges heat with cooling liquid in a serpentine channel 32, and finally an oil-gas mixture is obtained and is separated by a secondary separator 18; after cooling, the cooling liquid returns to the heat exchange tube 19, the refrigerating semiconductor 38 in the heat exchange tube 19 works, the end part close to the inner side wall of the heat exchange tube 19 generates cold energy, the other end generates heat, and the cold energy exchanges heat with the cooling liquid through the heat exchange bracket 37, so that the cooling effect of the cooling liquid is realized, and the effect of repeated circulating cooling of the cooling liquid is achieved.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The thermal analysis treatment equipment for the solid waste oil-containing silt comprises a combustion chamber (1), a steam superheater (2), a pyrolysis furnace, a cyclone separator (22), a condenser and a secondary separator (18) which are sequentially connected in series through pipelines; the pyrolysis furnace is characterized by comprising a bottom plate (24), a pyrolysis furnace body (6) and two horizontally arranged material pipes (7), wherein the two material pipes (7) are arranged in the pyrolysis furnace body (6) along the height direction, and a feed pipe (9) and a discharge pipe (26) are respectively arranged on the side wall close to the end parts of the two material pipes (7); a first connecting pipe (3) for connecting the two material pipes (7) is arranged on the side wall close to the other end of the two material pipes; the pyrolysis furnace body (6) is fixedly arranged on the top surface of the bottom plate (24), and a power transmission mechanism is further arranged on the top surface of the bottom plate (24); screw transmission mechanisms are arranged in the two material pipes (7); the power transmission mechanism is used for driving the two spiral transmission mechanisms to rotate simultaneously so as to realize the transmission of the oil-containing silt;
at least three air ejector pipes (4) are arranged at the outlet end of the steam superheater (2); a plurality of spray heads (5) are arranged on the side wall of the air jet pipe (4) along the length direction, and three air jet pipes (4) are respectively positioned between two material pipes (7) and between the material pipes (7) and the inner side wall of the pyrolysis furnace body (6); the end parts of the two material pipes (7) are respectively provided with an air outlet pipe (8), the end parts of the two air outlet pipes (8) far away from the material pipes (7) are connected through a tee joint (14), the outlet end of the tee joint (14) is provided with a connecting pipe II (13), and the end part of the connecting pipe II (13) far away from the tee joint (14) is connected with a cyclone separator (22).
2. The solid waste oily muddy sand thermal analysis treatment equipment according to claim 1, characterized in that the screw transmission mechanism comprises a transmission shaft (27), a transmission blade (28) and a bearing (29); the bearing (29) is fixedly arranged at the end part of the material pipe (7), the conveying shaft (27) is fixedly connected with the inner ring of the bearing (29), the conveying blades (28) are spiral, and are fixedly sleeved on the conveying shaft (27), and the spiral directions of the conveying blades (28) of the two spiral conveying mechanisms are opposite.
3. The solid waste oily silt thermal analysis treatment equipment according to claim 2, characterized in that the power transmission mechanism comprises a motor (23), two driving wheels (25) and a power transmission belt (10); the output end of the motor (23) is connected with the end part of the conveying shaft (27) of one spiral transmission mechanism, and the two driving wheels (25) are fixedly sleeved on the two conveying shafts (27) respectively; the power transmission belt (10) is sleeved on the two driving wheels (25) at the same time.
4. The thermal analysis treatment equipment for solid waste oily silt according to claim 1, which is characterized in that two air outlet pipes (8) are provided with one-way valves (11).
5. The solid waste oil-containing silt heat analysis treatment equipment according to claim 1, wherein a serpentine heat exchange coil (33), a baffle plate (30) and a plurality of guide plates (31) are arranged in the condenser body (15), and the baffle plate (30) and the guide plates (31) are perpendicular to the straight line section of the heat exchange coil (33); the guide plates (31) are sequentially and alternately fixedly connected with two opposite side walls of the condenser body (15) so as to form two serpentine heat exchange channels inside; the outlet ends of the two serpentine channels (32) are respectively provided with a liquid outlet pipe (36), and the liquid outlet ends of the two liquid outlet pipes (36) are provided with a pressurizing device; the liquid outlet end of the pressurizing device is provided with a heat exchange tube (19); the outlet end of the heat exchange tube (19) is provided with a liquid separating head (34), two outlet ends of the liquid separating head (34) are respectively provided with a circulating branch tube (20), and two circulating branch tubes (20) are respectively connected with inlet ends of two serpentine channels (32).
6. The equipment for thermally analyzing and treating the solid waste oily muddy sand according to claim 5 is characterized in that a plurality of refrigerating devices are arranged in the side wall of the heat exchange tube (19) at equal arc length intervals; the refrigeration device comprises two heat conducting plates (40), a plurality of refrigeration semiconductors (38) and a plurality of cooling fins (39); the heat conducting plate (40), the plurality of refrigeration semiconductors (38) and the plurality of cooling fins (39) are arranged along the length direction of the heat exchange tube (19); two ends of the plurality of refrigeration semiconductors (38) are fixedly connected with the two heat conducting plates (40), and the plurality of radiating fins (39) are fixedly connected with the heat conducting plates (40) close to the outer side wall of the heat exchange tube (19).
7. The device for thermal analysis treatment of solid waste oily silt according to claim 6, wherein a plurality of heat exchange brackets (37) are arranged in the heat exchange tube (19) along the length direction, and a plurality of the heat exchange brackets (37) are simultaneously connected with heat conducting plates (40) of a plurality of refrigerating devices.
8. The solid waste oily silt thermal analysis treatment equipment according to claim 5, wherein the pressurizing device comprises a liquid collecting head (16) and a pump body (21), the liquid inlet end of the liquid collecting head (16) is simultaneously connected with two liquid outlet pipes (36), the liquid outlet end of the liquid collecting head (16) is connected with the pump body (21), and the outlet end of the pump body (21) is connected with a heat exchange pipe (19).
9. The solid waste oily silt thermal analysis treatment apparatus of claim 6, wherein temperature sensors (35) are arranged on the side walls near the outlet ends of the two serpentine channels (32).
10. The equipment for thermal analysis treatment of solid waste oily muddy sand according to claim 7, characterized in that the material of the heat exchange support (37), the heat conducting plate (40) and the heat radiating fin (39) is copper.
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| CN116420608A (en) * | 2023-05-24 | 2023-07-14 | 四川省农业科学院茶叶研究所 | Tea tree seedling aeroponics device |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010149916A (en) * | 2008-12-26 | 2010-07-08 | Yen Sun Technology Corp | Storing and cooling type drink supply device |
| CN211035818U (en) * | 2019-09-27 | 2020-07-17 | 东旭蓝天生态环保科技有限公司 | Thermal analysis treatment equipment for hazardous waste and solid waste oil-containing silt |
| CN215312458U (en) * | 2021-02-08 | 2021-12-28 | 成都市华测检测技术有限公司 | Auxiliary condensing device of rotary evaporator |
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