CN116576443A - Activating machine for producing activated carbon and heat energy recovery type water vapor generator thereof - Google Patents
Activating machine for producing activated carbon and heat energy recovery type water vapor generator thereof Download PDFInfo
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- CN116576443A CN116576443A CN202310543942.3A CN202310543942A CN116576443A CN 116576443 A CN116576443 A CN 116576443A CN 202310543942 A CN202310543942 A CN 202310543942A CN 116576443 A CN116576443 A CN 116576443A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 213
- 238000011084 recovery Methods 0.000 title claims abstract description 47
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 230000003213 activating effect Effects 0.000 title claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 143
- 230000001502 supplementing effect Effects 0.000 claims abstract description 56
- 238000007599 discharging Methods 0.000 claims abstract description 23
- 238000010992 reflux Methods 0.000 claims abstract description 16
- 238000005485 electric heating Methods 0.000 claims abstract description 12
- 238000009834 vaporization Methods 0.000 claims abstract description 10
- 230000008016 vaporization Effects 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims abstract description 8
- 230000004913 activation Effects 0.000 claims description 73
- 238000010438 heat treatment Methods 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 238000002309 gasification Methods 0.000 claims description 12
- 230000000630 rising effect Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 8
- 239000011810 insulating material Substances 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 3
- 239000012190 activator Substances 0.000 claims 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 8
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 239000012774 insulation material Substances 0.000 abstract 1
- 238000001994 activation Methods 0.000 description 60
- 239000007789 gas Substances 0.000 description 26
- 238000007789 sealing Methods 0.000 description 16
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 10
- 235000017491 Bambusa tulda Nutrition 0.000 description 10
- 241001330002 Bambuseae Species 0.000 description 10
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 10
- 239000011425 bamboo Substances 0.000 description 10
- 230000003020 moisturizing effect Effects 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- 239000000446 fuel Substances 0.000 description 5
- 230000002776 aggregation Effects 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000005539 carbonized material Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- -1 inner bag Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/39—Apparatus for the preparation thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
- F22D5/26—Automatic feed-control systems
- F22D5/34—Applications of valves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The application discloses an activating machine for producing active carbon and a heat energy recovery type water vapor generator thereof, wherein the heat energy recovery type water vapor generator comprises an outer cylinder, a heat conduction cylinder, an inner container, a heat insulation material, an annular partition plate, a one-way valve, a spiral channel, a water supplementing pipe joint, a high-pressure steam discharging pipe joint, a steam reflux pipe joint, an electric heating wire, a high-temperature activating material discharging hopper, a spiral shaft, a driving motor and a pressurizing pump, wherein water flowing in from the water supplementing pipe joint enters a water supplementing vaporization cavity, flows along the spiral channel and is heated into steam by the high-temperature activating material in the heat conduction cylinder. The heat energy recovery type water vapor generator not only realizes the cyclic utilization of vapor, but also can fully recover heat energy of high-temperature activated materials above 800 ℃, and has reasonable layout, thereby fully utilizing the heat energy of the high-temperature activated materials; the application discloses an activating machine for producing activated carbon, which adopts a heat energy recovery type water vapor generator.
Description
Technical Field
The application relates to the technical field of active carbon production equipment, in particular to an activating machine for active carbon production and a heat energy recovery type water vapor generator thereof.
Background
The active carbon is an amorphous carbon product with a porous structure, which is produced by granulating and molding binders such as pulverized coal, mixed tar, asphalt and the like and carbonizing, activating and the like. Because of the existence of a plurality of structural holes on the surface and the inside of the activated carbon, the specific surface of the activated carbon is very large, so that the activated carbon has good adsorption capacity on inorganic or organic substances and colloid particles in gases, dust and solutions, and is widely applied to the treatment of industrial pollutants such as waste water, waste gas and the like.
The production method of the activated carbon at home and abroad mainly comprises two main categories, namely: physical and chemical methods. The physical method is that the raw materials (high-quality coal, fruit shell, charcoal, etc.) are put into a closed furnace body to be smolded and carbonized, and then a proper amount of water vapor is introduced to activate, thus preparing the active carbon. The chemical method is to soak the raw materials (generally saw dust) with chemical agents (phosphoric acid, zinc chloride, etc.), and then carbonize and activate the raw materials in an air circulation furnace body to prepare the active carbon. At present, many manufacturers use a physical method to produce activated carbon.
The activation operation of the activated carbon is mainly completed in a rotary activation furnace. The patent document with the publication number of CN112299416B discloses a rotary activation furnace, which comprises a feeding bin, a kiln head sealing cover, a steam input device, a rotary kiln, a product channel, a transmission device, a discharging bin and a sealing plate, wherein the product channel is fixedly arranged in the rotary kiln and is provided with a higher head end and a lower tail end in the rotary kiln rotation process; the sealing plate is arranged at one end of the rotary kiln, and the head end of the product channel penetrates through the sealing plate; the kiln head sealing cover is in running fit with one end of the rotary kiln, a gas outlet for the gas passing through the product channel to flow out is formed in the kiln head sealing cover, and the head end of the product channel is communicated with the inner cavity of the kiln head sealing cover; the discharging bin is in rotary fit with the other end of the rotary kiln, and the tail end of the product channel is communicated with the discharging bin; the steam input device is provided with a steam outlet communicated with the kiln chamber of the rotary kiln and a steam inlet used for being connected with steam equipment, and a steam heating flow passage is formed by enclosing a sealing plate, the inner wall of the rotary kiln, the inner wall of the discharge bin and the outer wall of the product channel; the transmission device drives the rotary kiln to rotate; the feeding end of the feeding bin is communicated with the inner cavity of the kiln head sealing cover. And heating and activating the materials in the product channel by steam. In the production process of the rotary activation furnace, the rotary kiln rotates to drive the product channel to rotate. The material is sent into the inner cavity of the kiln head sealing cover from the feeding bin, when the material in the kiln head sealing cover reaches a certain height, the product channel rotates to be close to the bottom of the kiln head sealing cover, and the material in the inner cavity of the kiln head sealing cover enters the product channel from the head end of the product channel under the action of gravity, so that the charging process of the product channel is completed. The material moves slowly down the product path. At this time, the steam provided by the steam equipment enters the kiln chamber of the rotary kiln from the steam outlet after passing through the steam inlet of the steam input device, and flows along the steam heating flow channel enclosed by the sealing plate, the inner wall of the rotary kiln, the inner wall of the discharge bin and the outer wall of the product channel towards the direction of the discharge bin, and in the flowing process, the high-temperature steam and the outer wall of the product channel are heated, so that the effect of heating the materials in the product channel is realized. And steam flowing to the other end of the discharging bin or the rotary kiln enters the inside of the product channel from the tail end of the product channel to perform an activation reaction with the material, then enters the kiln head sealing cover and flows out from the gas outlet. The material in the product channel is gradually heated to an activation temperature by high-temperature steam outside the product channel, and is contacted and reacted with steam entering from the tail end of the product channel, the material after the activation process falls into a discharging bin from the tail end of the product channel, and is discharged after being collected in the discharging bin. By enabling steam to enter the inside of the product channel from the tail end of the product channel, the phenomenon that the steam contacts cold materials to form condensation is avoided, and the air permeability of the product channel is reduced. The pure and clean high-temperature steam is used as a heating medium of the rotary activation furnace, so that aggregation of high-viscosity substances such as tar in the smoke in the rotary kiln is avoided, the risk of equipment looping can be effectively reduced, and the running stability is improved. And the whole process is not contacted with oxygen, so that the burning loss of carbonized materials is completely avoided, and the yield of the activation process is effectively improved.
Although the above technology is better in performance in the active carbon activation furnace series at present, the following problems are found after practical application:
firstly, materials in an inner cavity of a kiln head sealing cover enter a product channel from the head end of the product channel under the action of gravity to finish the charging process of the product channel, and as the product channel is essentially a material slideway, the flow rate of the materials in the product channel cannot be regulated and controlled, and the materials cannot be fully activated in the product channel;
secondly, steam enters the inside of the product channel from the tail end of the product channel and is discharged from the head end of the product channel, in practice, materials enter from the head end of the product channel very unsmoothly due to the acting force of steam air flow, especially when a machine runs for a period of time, activated gas generated after the steam reacts with the materials contains a certain amount of tar, and the activated gas with the tar causes material particles to be stuck at the head end of the product channel, so that the technical defect that the materials cannot enter the product channel occurs;
the preheating and the activation are not separately and independently carried out, and after all the steam preheats the materials, the materials directly participate in the activation reaction, the gas generated by the activation reaction, the gas separated from the materials and the steam are mixed together and cannot be recycled in the preheating process, and the gas can only be sent into a hearth to be used as fuel, however, the steam content of the mixed gas is large, and the steam with excessive content reduces the relative combustion index of the mixed gas as fuel;
fourth, the heat energy carried by the activated materials is not fully utilized, and in the subsequent cooling process, the air cooling is directly carried out by a fan, so that the heat energy loss is serious;
and fifthly, the steam boiler is used in the activating machine, steam cannot be recycled in the activating process, and in order to generate new steam, a hearth of the steam boiler needs to be continuously added with fuel, and the equipment in the working mode has serious energy loss.
Disclosure of Invention
The application aims to provide an activating machine for producing active carbon, which uses water vapor to activate and recycle activated heat energy so as to solve one or more technical problems in the prior art and at least provide a beneficial selection or creation condition.
Another object of the present application is to provide a heat energy recovery type water vapor generator for recovering and utilizing activation heat energy and providing high temperature water vapor for an activation process.
In order to solve the technical problems, the application adopts the following technical scheme:
the utility model provides a heat energy recovery type steam generator, includes urceolus, heat conduction section of thick bamboo, inner bag, insulating material, annular baffle, check valve, spiral passageway, moisturizing pipe connection, high-pressure steam discharge pipe connection, steam backflow pipe connection, electric heater strip, high temperature activated material are discharged into fill, screw axis, driving motor and force (forcing) pump, inner bag and heat conduction section of thick bamboo are located the urceolus, and the heat conduction section of thick bamboo passes from the inner bag, insulating material fills between urceolus and inner bag and between urceolus and the heat conduction section of thick bamboo, annular baffle separates the annular space between inner bag and the heat conduction section of thick bamboo into moisturizing gasification chamber and steam pressurization heating chamber, the check valve is installed and is used for making moisturizing gasification chamber's steam to steam pressurization heating chamber one-way flow on annular baffle, spiral passageway sets up in moisturizing gasification chamber, moisturizing pipe connection and moisturizing gasification chamber intercommunication, the water that flows from moisturizing pipe connection flows in, is heated into steam by high temperature activated material in the heat conduction section of thick bamboo along spiral passageway, high pressure steam discharge pipe connection and steam backflow pipe connection with steam pressurization heating chamber intercommunication, steam backflow pipe connection is established in the heat conduction section of thick bamboo is connected in the heat conduction section of thick bamboo, the heat conduction section of thick bamboo is connected in the steam pressurization heating chamber, the heat conduction section of thick bamboo is connected in the heat pipe, the steam pressurization pipe is connected to one side of the steam pressurization heating chamber.
Further, the water supplementing pipe joint is connected with a water supplementing pipeline, the water supplementing pipeline is connected with a water source, and the water supplementing pipeline is connected with a water supplementing pump and a water supplementing valve in series.
The activating machine for producing the activated carbon comprises a heat energy recovery type water vapor generator, a workbench, a left driving roller group, a preheating closed bin, a right driving roller group, an activating bin, a horizontal material preheating bin, a horizontal net drum, a high-temperature water vapor input pipeline, a water vapor compression temperature rising machine, a water vapor return pipeline and an activating water vapor input pipeline, wherein the left driving roller group, the preheating closed bin, the right driving roller group and the activating bin are sequentially arranged on the workbench, the horizontal material preheating bin is supported on the left driving roller group and the right driving roller group, the left driving roller group and the right driving roller group synchronously drive the horizontal material preheating bin to roll, the left end of the horizontal material preheating bin extends into the material bin, the right end of the horizontal material preheating bin passes through the preheating closed bin and extends into the activating bin to be coaxially connected with the horizontal net drum, a high-temperature water vapor input port and a low-temperature water vapor output port are arranged on the preheating closed bin, the high temperature water vapor input port is connected with one end of a high temperature water vapor input pipeline, the other end of the high temperature water vapor input pipeline is communicated with a high pressure vapor discharge pipe joint of a heat energy recovery type water vapor generator, a water vapor compression temperature rising machine is connected in series on the high temperature water vapor input pipeline, the low temperature water vapor output port is communicated with a vapor reflux pipe joint of the heat energy recovery type water vapor generator through the water vapor reflux pipeline, a water vapor input port and an exhaust port are arranged on the activation bin, one end of the activation water vapor input pipeline is communicated with a water vapor input port of the activation bin, the other end of the activation water vapor input pipeline is communicated on the high temperature water vapor input pipeline, the communication part is positioned in an area between the water vapor compression temperature rising machine and the preheating closed bin, pushing spirals are fixed on the inner wall of the horizontal material preheating cylinder and the inner wall of the horizontal net cylinder, the bottom of the activation bin is provided with a collecting groove below the discharge end of the horizontal net drum, the bottom of the collecting groove is provided with a discharge pipe, the discharge pipe is provided with a discharge valve, and the discharge pipe is communicated with a high-temperature activation material discharge hopper of the heat energy recovery type water vapor generator; when in activation, a water supplementing valve on a heat energy recovery type water vapor generator is opened, a water supplementing pump and an electric heating wire are started, high-pressure vapor generated by the heat energy recovery type water vapor generator flows along a high-temperature water vapor input pipeline, after the high-pressure vapor is compressed and heated to 900 ℃ by a water vapor compression temperature rising machine, one path of the high-pressure vapor is sent into a preheating closed bin through the water vapor input pipeline to preheat materials in a horizontal material preheating cylinder to more than 800 ℃, and the other path of the high-pressure vapor is sent into an activation bin through an activation water vapor input pipeline to perform activation reaction with the materials in the horizontal net cylinder; the horizontal net barrel synchronously rotates along with the horizontal material preheating barrel, under the action of the pushing screw, the high-temperature activated material in the horizontal net barrel falls into the collecting tank, enters the heat conduction barrel of the heat energy recovery type water vapor generator through the discharging pipe, and heats water in the water supplementing vaporization cavity and reflux vapor in the vapor pressurizing heating cavity in the liner in the process that the high-temperature activated material moves along the heat conduction barrel under the action of the screw shaft.
Further, a steam flow regulating valve is arranged on the activated steam input pipeline.
Further, a steam baffle plate is arranged in the activation bin and positioned at the lower side of the horizontal net barrel, a steam baffle plate is arranged at the discharge end of the horizontal net barrel in the activation bin, the upper end of the steam baffle plate is fixedly connected with the top cover of the activation bin, and the distance from the lower end of the steam baffle plate to the plane where the bottom of the horizontal net barrel is positioned is 1/3 of the diameter of the horizontal net barrel. The distance cannot be too large, and the effect of blocking steam is poor when the distance is too large, and the distance cannot be too small, so that the discharging of the horizontal net drum can be influenced when the distance is too small.
Further, the horizontal net barrel and the horizontal material preheating barrel are connected through a flange, and the diameter of the horizontal net barrel is larger than that of the horizontal material preheating barrel. The diameter of the horizontal net drum is increased, so that the materials in the horizontal net drum are fully contacted with water vapor; the horizontal net barrel and the horizontal material preheating barrel are connected through the flange, so that the horizontal net barrel is greatly convenient to replace and clean.
Further, the high-temperature water vapor input port and the low-temperature water vapor output port are respectively close to the right end and the left end of the preheating closed bin, and a vapor choking screw is arranged in an annulus between the preheating closed bin and the horizontal material preheating cylinder.
Further, the steam flow blocking screw is fixed on the outer wall of the horizontal material preheating cylinder and is consistent with the screw direction of the pushing screw in the preheating closed bin.
Further, a pushing screw in the horizontal material preheating cylinder extends out of the left end of the horizontal material preheating cylinder and extends into the material bin.
Further, the left driving roller group and the right driving roller group are synchronously driven by a motor, and the motor is a variable frequency motor.
The application has the beneficial effects that:
1. the heat energy recovery type water vapor generator not only realizes the cyclic utilization of vapor, but also can fully recover heat energy of high-temperature activated materials with the temperature of more than 800 ℃. The equipment only utilizes the electric heating wire to heat water to form steam when the equipment is just started, and after the activating machine normally operates, the steam can be recycled, and the electric heating wire does not need to continuously perform heating operation, so that the energy consumption is greatly reduced; the generator is reasonable in layout, the high-temperature activated material and the reflowed steam are subjected to heat exchange firstly, and then the waste heat of the high-temperature activated material is utilized to heat the supplemented water, so that the heat energy of the high-temperature activated material is fully utilized;
2. the activating machine for producing the activated carbon utilizes the heat energy recovery type steam generator, so that not only is steam recycled, but also the heat energy carried by the activated material can be fully recovered, the production cost is greatly reduced, and the energy-saving and environment-friendly requirements in the production process can be fully met;
3. the activation preheating and the activation of the equipment adopt water vapor, and pure and clean high-temperature vapor is used as a heating medium of a rotary activation furnace, so that the aggregation of high-viscosity substances such as tar in smoke in an activation machine is avoided, the bonding phenomenon in the machine can be effectively reduced, the operation stability is improved, the whole process is not contacted with oxygen, the burning loss of carbonized materials is completely avoided, and the activation process yield is effectively improved;
4. the preheating and activating machine is divided into two independent spaces, heat energy carried by preheated water vapor is recycled, and the activated gas is not used as the gas for preheating materials, and because tar is contained in the gas, the horizontal material preheating cylinder is polluted, so that the design greatly reduces pollution areas and lowers the maintenance cost of equipment;
5. in the preheating process, the machine is isolated from the materials by water vapor and is not contacted with the materials, so that the problem of large-area pollution of equipment caused by activation reaction is avoided.
Drawings
The application will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the application, and other drawings can be obtained by one skilled in the art without inventive effort from the following figures:
FIG. 1 is a schematic diagram of a heat energy recovery type steam generator according to the present application;
FIG. 2 is a schematic diagram of the structure of the activating machine for producing activated carbon of the present application.
In the figure: 1. a work table; 2. a left drive roller group; 3. preheating a closed bin; 4. a right drive roller group; 5. activating a bin; 6. a horizontal material preheating cylinder; 7. a horizontal net drum; 8. a high-temperature water vapor input pipeline; 9. a heat energy recovery type water vapor generator; 10. a water vapor compression warming machine; 11. a water vapor return line; 12. activating a water vapor input line; 13. a material bin; 14. a high temperature water vapor input port; 15. a low-temperature water vapor outlet; 16. a water vapor input port; 17. an exhaust port; 18. pushing the material spiral; 19. a steam flow regulating valve; 20. a vapor barrier plate; 21. a steam baffle; 22. a top cover; 23. a flange; 24. a steam choked flow spiral; 25. a material collecting groove; 26. a discharge pipe; 27. a discharge valve; 28. a motor; 29. an activated gas recovery line; 30. an outer cylinder; 31. a heat conduction tube; 32. an inner container; 33. a heat insulating material; 34. an annular partition plate; 35. the method comprises the steps of carrying out a first treatment on the surface of the 36. The method comprises the steps of carrying out a first treatment on the surface of the 37. A one-way valve; 38. a spiral channel; 39. a water replenishing pipe joint; 40. a high pressure steam discharge pipe joint; 41. a steam reflux pipe joint; 42. an electric heating wire; 43. discharging the high-temperature activated material into a hopper; 44. a screw shaft; 45. a driving motor; 46. a pressurizing pump; 47. a water supplementing pipeline; 48. a water supplementing pump; 49. and a water supplementing valve.
Detailed Description
In order to make the technical solution of the present application better understood by those skilled in the art, the present application will be described in further detail with reference to the accompanying drawings and the specific embodiments, and it should be noted that the embodiments of the present application and features in the embodiments may be combined with each other without conflict.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper surface", "lower surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "forward rotation", "reverse", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
As shown in fig. 1, a heat energy recovery type water vapor generator 9 comprises an outer cylinder 30, a heat conducting cylinder 31, an inner cylinder 32, a heat insulating material 33, an annular partition 34, a one-way valve 37, a spiral channel 38, a water supplementing pipe connector 39, a high-pressure vapor discharge pipe connector 40, a vapor return pipe connector 41, an electric heating wire 42, a high-temperature activated material discharge hopper 43, a spiral shaft 44, a driving motor 45 and a pressurizing pump 46, wherein the inner cylinder 32 and the heat conducting cylinder 31 are positioned in the outer cylinder 30, the heat conducting cylinder 31 passes through the inner cylinder 32, the heat insulating material 33 is filled between the outer cylinder 30 and the inner cylinder 32 and between the outer cylinder 30 and the heat conducting cylinder 31, the annular partition 34 divides the annular space between the inner cylinder 32 and the heat conducting cylinder 31 into a water supplementing vaporization cavity 35 and a vapor pressurizing heating cavity 36, the one-way valve 37 is arranged on the annular partition 34 to enable vapor in the water supplementing vaporization cavity 35 to flow unidirectionally to the vapor pressurizing heating cavity 36, the spiral channel 38 is arranged in the water supplementing gasification cavity 35, the water supplementing pipe connector 39 is communicated with the water supplementing gasification cavity 35, water flowing from the water supplementing pipe connector 39 enters the water supplementing gasification cavity 35 and flows along the spiral channel 38, the water is heated into steam by high-temperature activated materials in the heat conducting cylinder 31, the high-pressure steam discharging pipe connector 40 and the steam reflux pipe connector 41 are communicated with the steam pressurizing and heating cavity 36, the steam reflux pipe connector 41 is connected with the water steam reflux pipeline 11, the pressurizing pump 46 is connected in series on the water steam reflux pipeline 11, the electric heating wire 42 is arranged in the steam pressurizing and heating cavity 36, the spiral shaft 44 is arranged in the heat conducting cylinder 31, one end of the spiral shaft 44 extends out of the heat conducting cylinder 31 and is connected with the driving motor 45, and the high-temperature activated materials discharging hopper 43 is communicated with the heat conducting cylinder 31 and is close to one side of the steam pressurizing and heating cavity 36; the water supplementing pipe joint 39 is connected with a water supplementing pipeline 47, the water supplementing pipeline 47 is connected with a water source, the water supplementing pipeline 47 is connected with a water supplementing pump 48 and a water supplementing valve 49 in series, the water supplementing valve 49 adopts a one-way valve, and water can only flow to the liner 32.
The heat energy recovery type water vapor generator can fully recover heat energy of high-temperature activated materials, the temperature of the high-temperature activated materials is above 800 ℃, under the drive of a water supplementing pump 48, after water flows along a spiral channel 38 after passing through a water supplementing pipeline 47, the water quickly forms vapor, the vapor in a water supplementing vaporization cavity 35 is more and more, the vapor pressure is gradually increased, when the vapor pressure in the water supplementing vaporization cavity 35 is higher than the pressure in a vapor pressurizing heating cavity 36, the vapor flows into the vapor pressurizing heating cavity 36 from the water supplementing vaporization cavity 35 through a one-way valve 37, when the water supplementing vaporization cavity is just started, no vapor is in the vapor pressurizing heating cavity 36, the vapor is formed by heating water through an electric heating wire 42, and after the activating machine normally operates, the electric heating wire 42 is closed, and the heat energy is provided by the high-temperature activated materials; the booster pump 46 is connected in series to the water vapor return line 11 for boosting the vapor in the vapor boosting heating chamber 36, and the vapor discharged from the high pressure vapor discharge pipe joint 40 is high pressure high temperature vapor with a temperature up to 400 ℃. The heat exchange layout of the steam generator is reasonable, the high-temperature activated material and the reflowed steam are subjected to heat exchange, and then the waste heat of the high-temperature activated material is utilized to heat the supplemented water, so that the heat energy of the high-temperature activated material is fully utilized.
As shown in figure 2, the activating machine for producing the activated carbon comprises a heat energy recovery type water vapor generator 9, a workbench 1, a left driving roller group 2, a preheating closed bin 3, a right driving roller group 4, an activating bin 5, a horizontal material preheating cylinder 6, a horizontal net cylinder 7, a water vapor input pipeline 8, a water vapor compression temperature rising machine 10, a water vapor return pipeline 11 and an activating water vapor input pipeline 12, wherein the left driving roller group 2, the preheating closed bin 3, the right driving roller group 4 and the activating bin 5 are sequentially arranged on the workbench 1, the horizontal material preheating cylinder 6 is supported on the left driving roller group 2 and the right driving roller group 3, the left driving roller group 2 and the right driving roller group 3 synchronously drive the horizontal material preheating cylinder 6 to roll, the left end of the horizontal material preheating cylinder 6 stretches into a material bin 13, the right end of the horizontal material preheating cylinder 6 passes through the preheating closed bin 3 and extends into the activation bin 5 to be coaxially connected with the horizontal net cylinder 7, the preheating closed bin 3 is provided with a high-temperature water vapor input port 14 and a low-temperature water vapor output port 15, the high-temperature water vapor input port 14 is connected with one end of a high-temperature water vapor input pipeline 8, the other end of the high-temperature water vapor input pipeline 8 is communicated with a high-pressure vapor discharge pipe joint 40 of a heat energy recovery type water vapor generator 9, a water vapor compression temperature rising machine 10 is connected in series with the high-temperature water vapor input pipeline 8, the low-temperature water vapor output port 15 is communicated with a vapor return pipe joint 41 of the heat energy recovery type water vapor generator 9 through a water vapor return pipeline 11, the activation bin 5 is provided with a water vapor input port 16 and an exhaust port 17, one end of the activation water vapor input pipeline 12 is communicated with the water vapor input port 16 of the activation bin 5, the other end of the activated steam input pipeline 12 is communicated with the steam input pipeline 8, the communication part is positioned in the area between the steam compression temperature rising machine 10 and the preheating closed bin 3, the inner wall of the horizontal material preheating cylinder 6 and the inner wall of the horizontal net cylinder 7 are both fixedly provided with a pushing spiral 18, the bottom of the activated bin 5 and the lower part of the discharge end of the horizontal net cylinder 7 are provided with a material collecting tank 25, the bottom of the material collecting tank 25 is provided with a material discharging pipe 26, the material discharging pipe 26 is provided with a material discharging valve 27, and the material discharging pipe 27 is communicated with a high-temperature activated material discharging hopper 43 of the heat energy recovery type steam generator 9; when in activation, a water supplementing valve 49 on the heat energy recovery type water vapor generator 9 is opened, a water supplementing pump 48 and an electric heating wire 42 are started, high-pressure vapor generated by the heat energy recovery type water vapor generator 9 flows along a high-pressure water vapor input pipeline 8, after the high-pressure vapor is compressed and heated to 900 ℃ by a water vapor compression temperature rising machine 10, one path of the high-pressure vapor is sent into a preheating closed bin 3 through the high-pressure water vapor input pipeline 8 to preheat materials in a horizontal material preheating cylinder 6 to more than 800 ℃, and the other path of the high-pressure vapor is sent into an activation bin 5 through an activation water vapor input pipeline 12 to perform activation reaction with the materials in a horizontal net cylinder 7; the horizontal net drum 7 rotates synchronously with the horizontal material preheating drum 6, under the action of the pushing screw 18, the high-temperature activated material in the horizontal net drum 7 falls into the collecting tank 25, and enters the heat conduction drum 31 of the heat energy recovery type water vapor generator 9 through the discharge pipe 26 and the high-temperature activated material discharge hopper 43, and under the action of the screw shaft 44, the water in the water supplementing vaporization cavity 35 in the liner 32 and the reflux vapor in the vapor pressurizing heating cavity 36 are heated in the process that the high-temperature activated material moves along the heat conduction drum 31.
The activating machine for producing the activated carbon has the following characteristics: firstly, the heat energy carried by the activated material can be fully recovered by utilizing a heat energy recovery type water vapor generator so as to reduce the production cost and fully meet the energy-saving and environment-friendly requirements in the production process; secondly, the equipment adopts water vapor for activation and preheating and activation, and pure and clean high-temperature vapor is used as a heating medium of a rotary activation furnace, so that aggregation of high-viscosity substances such as tar in smoke in an activation machine is avoided, the bonding phenomenon in the machine can be effectively reduced, the operation stability is improved, the whole process is not contacted with oxygen, the burning loss of carbonized materials is completely avoided, and the activation process yield is effectively improved; thirdly, the preheating and the activation are divided into two independent spaces by the machine, heat energy carried by preheated water vapor is recycled, and the activated gas is not used as the gas for preheating materials, and because tar is contained in the gas, the horizontal material preheating cylinder is polluted, so that the design greatly reduces pollution areas and the maintenance cost of equipment; fourthly, in the preheating process, the water vapor is isolated from the materials and is not contacted with the materials, so that the problem of large-area pollution of equipment caused by activation reaction is avoided.
The steam flow regulating valve 19 is arranged on the activated steam input pipeline 12, and the steam flow regulating valve 19 is regulated according to the steam required by activation, so that the steam with heat energy can be recycled, and meanwhile, when the activated gas generated by the activation reaction is used as fuel, the steam content in the activated gas is greatly reduced, and the heat energy is reasonably distributed by design.
The steam baffle plate 20 is arranged in the activation bin 5 and positioned at the lower side of the horizontal net drum 7, the steam baffle plate 21 is arranged at the discharge end of the horizontal net drum 7 in the activation bin 5, the upper end of the steam baffle plate 21 is fixedly connected with the top cover 22 of the activation bin 5, and the distance from the lower end of the steam baffle plate 21 to the plane where the bottom of the horizontal net drum 7 is positioned is 1/3 of the diameter of the horizontal net drum. The distance cannot be too large, and the effect of blocking steam is poor when the distance is too large, and the distance cannot be too small, so that the discharging of the horizontal net drum can be influenced when the distance is too small.
The horizontal net drum 7 is connected with the horizontal material preheating drum 6 through a flange 23, and the diameter of the horizontal net drum 7 is larger than that of the horizontal material preheating drum 6. The diameter of the horizontal net drum 7 is increased, so that the materials in the horizontal net drum 7 are fully contacted with water vapor; because the activation reaction is carried out in the horizontal net drum 7, in the activation machine, the horizontal net drum 7 is the most easy to pollute dust, and the horizontal net drum 7 is connected with the horizontal material preheating drum 6 through the flange 23, thereby greatly facilitating the replacement and cleaning of the horizontal net drum 7 and being beneficial to the maintenance of the horizontal net drum 7.
The high-temperature water vapor input port 14 and the low-temperature water vapor output port 15 are respectively close to the right end and the left end of the preheating closed bin 3, and a vapor choked flow spiral 24 is arranged in an annulus between the preheating closed bin 3 and the horizontal material preheating cylinder 6. After entering the preheating closed bin 3, the high-temperature water vapor moves along the steam choked flow spiral 24, so that the high-temperature water vapor flows through each area of the outer wall of the horizontal material preheating cylinder 6, and uniform heating of the horizontal material preheating cylinder 6 is realized. In order to prolong the stop time of high-temperature water vapor in the preheating closed bin 3 and ensure the full operation of heat exchange, the vapor flow blocking screw 24 is fixed on the outer wall of the horizontal material preheating cylinder 6, so that the vapor flow blocking screw 24 can synchronously rotate with the horizontal material preheating cylinder 6, and the vapor flow blocking screw 24 is consistent with the screw direction of the pushing screw 18 in the preheating closed bin 6, thereby playing a role in reversely blocking the high-temperature water vapor, enabling the stop time of the high-temperature water vapor in the preheating closed bin 3 to be longer and laying a foundation for full heat exchange.
In order to collect the materials in the material bin 13, the materials in the material bin 13 are moved to the horizontal material preheating cylinder 6, the pushing screw 18 in the horizontal material preheating cylinder 6 extends out of the left end of the horizontal material preheating cylinder and into the material bin 13, and the pushing screw 18 is used for pushing the materials in the material bin 13.
In order to control the rotation speed of the horizontal material preheating cylinder 6 and the horizontal net cylinder 7, a variable frequency motor is adopted as a motor 28 for synchronously driving in the left driving roller group 2 and the right driving roller group 4.
In order to utilize the activated gas, the exhaust port 17 on the activation bin 5 is connected to one end of an activation gas recovery pipeline 29, the other end of the activation gas recovery pipeline 29 is communicated with the hearth of the high-pressure steam boiler of the carbonization device, the activated gas is sent into the hearth of the high-pressure steam boiler of the carbonization device by the activation gas recovery pipeline 29 to be combusted, and the activated gas is used as fuel.
Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction. While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (10)
1. A heat energy recovery type steam generator, characterized in that: the device comprises an outer barrel, a heat conducting barrel, an inner container, a heat insulating material, an annular partition plate, a one-way valve, a spiral channel, a water supplementing pipe connector, a high-pressure steam discharging pipe connector, a steam reflux pipe connector, an electric heating wire, a high-temperature activating material discharging hopper, a spiral shaft, a driving motor and a pressurizing pump, wherein the inner container and the heat conducting barrel are positioned in the outer barrel, the heat conducting barrel penetrates through the inner container, the heat insulating material is filled between the outer barrel and the inner container and between the outer barrel and the heat conducting barrel, the annular partition plate separates an annular space between the inner container and the heat conducting barrel into a water supplementing gasification cavity and a steam pressurizing heating cavity, the one-way valve is arranged on the annular partition plate and is used for enabling steam of the water supplementing gasification cavity to flow unidirectionally to the steam pressurizing heating cavity, the spiral channel is arranged in the water supplementing gasification cavity, the water supplementing pipe connector is communicated with the water supplementing gasification cavity, water flowing from the water supplementing pipe connector enters the water supplementing gasification cavity and flows along the spiral channel, the high-temperature activating material in the heat conducting barrel is heated into steam, the high-pressure steam discharging pipe connector and the steam reflux pipe connector are communicated with the steam pressurizing cavity, the steam is connected with the steam, the water reflux pipe connector is connected with the steam, the annular space between the inner container and the heat conducting barrel, the annular space between the water and the water, the water is connected with the heat conducting pipe, the water is connected with the heating cavity, the heating cavity and the heating cavity, the heating pipe, and the heating pipe and the heating cavity.
2. The heat energy recovery type water vapor generator according to claim 1, wherein: the water supplementing pipe joint is connected with a water supplementing pipeline, the water supplementing pipeline is connected with a water source, and the water supplementing pipeline is connected with a water supplementing pump and a water supplementing valve in series.
3. An activating machine for activated carbon production, which is characterized in that: the heat energy recovery type water vapor generator comprises the heat energy recovery type water vapor generator as claimed in claim 2, and further comprises a workbench, a left driving roller group, a preheating closed bin, a right driving roller group, an activation bin, a horizontal material preheating cylinder, a horizontal net cylinder, a high-temperature water vapor input pipeline, a water vapor compression temperature rising machine, a water vapor return pipeline and an activation water vapor input pipeline, wherein the left driving roller group, the preheating closed bin, the right driving roller group and the activation bin are sequentially arranged on the workbench, the horizontal material preheating cylinder is supported on the left driving roller group and the right driving roller group, the left driving roller group and the right driving roller group synchronously drive the horizontal material preheating cylinder to roll, the left end of the horizontal material preheating cylinder stretches into the material bin, the right end of the horizontal material preheating cylinder passes through the preheating closed bin and stretches into the activation bin to be coaxially connected with the horizontal net cylinder, the preheating closed bin is provided with a high-temperature water vapor input port and a low-temperature water vapor output port, the high temperature water vapor input port is connected with one end of a high temperature water vapor input pipeline, the other end of the high temperature water vapor input pipeline is communicated with a high pressure vapor discharge pipe joint of a heat energy recovery type water vapor generator, a water vapor compression temperature rising machine is connected in series on the high temperature water vapor input pipeline, the low temperature water vapor output port is communicated with a vapor reflux pipe joint of the heat energy recovery type water vapor generator through the water vapor reflux pipeline, a water vapor input port and an exhaust port are arranged on the activation bin, one end of the activation water vapor input pipeline is communicated with a water vapor input port of the activation bin, the other end of the activation water vapor input pipeline is communicated on the high temperature water vapor input pipeline, the communication part is positioned in an area between the water vapor compression temperature rising machine and the preheating closed bin, pushing spirals are fixed on the inner wall of the horizontal material preheating cylinder and the inner wall of the horizontal net cylinder, the bottom of the activation bin is provided with a collecting groove below the discharge end of the horizontal net drum, the bottom of the collecting groove is provided with a discharge pipe, the discharge pipe is provided with a discharge valve, and the discharge pipe is communicated with a high-temperature activation material discharge hopper of the heat energy recovery type water vapor generator; when in activation, a water supplementing valve on a heat energy recovery type water vapor generator is opened, a water supplementing pump and an electric heating wire are started, high-pressure vapor generated by the heat energy recovery type water vapor generator flows along a high-temperature water vapor input pipeline, after the high-pressure vapor is compressed and heated to 900 ℃ by a water vapor compression temperature rising machine, one path of the high-pressure vapor is sent into a preheating closed bin through the water vapor input pipeline to preheat materials in a horizontal material preheating cylinder to more than 800 ℃, and the other path of the high-pressure vapor is sent into an activation bin through an activation water vapor input pipeline to perform activation reaction with the materials in the horizontal net cylinder; the horizontal net barrel synchronously rotates along with the horizontal material preheating barrel, under the action of the pushing screw, the high-temperature activated material in the horizontal net barrel falls into the collecting tank, enters the heat conduction barrel of the heat energy recovery type water vapor generator through the discharging pipe, and heats water in the water supplementing vaporization cavity and reflux vapor in the vapor pressurizing heating cavity in the liner in the process that the high-temperature activated material moves along the heat conduction barrel under the action of the screw shaft.
4. An activating machine for producing activated carbon as claimed in claim 3, wherein: and a steam flow regulating valve is arranged on the activated steam input pipeline.
5. An activating machine for producing activated carbon as claimed in claim 3, wherein: the steam blocking plate is arranged in the activation bin and positioned at the lower side of the horizontal net barrel, the steam baffle is arranged at the discharge end of the horizontal net barrel in the activation bin, the upper end of the steam baffle is fixedly connected with the top cover of the activation bin, and the distance from the lower end of the steam baffle to the plane where the bottom of the horizontal net barrel is positioned is 1/3 of the diameter of the horizontal net barrel.
6. An activating machine for producing activated carbon as claimed in claim 3, wherein: the horizontal net barrel and the horizontal material preheating barrel are connected through a flange, and the diameter of the horizontal net barrel is larger than that of the horizontal material preheating barrel.
7. An activating machine for producing activated carbon as claimed in claim 3, wherein: the high-temperature water vapor input port and the low-temperature water vapor output port are respectively close to the right end and the left end of the preheating closed bin, and a vapor choking screw is arranged in an annulus between the preheating closed bin and the horizontal material preheating cylinder.
8. A heat recovery type steam activator according to claim 7, wherein: the steam flow blocking screw is fixed on the outer wall of the horizontal material preheating cylinder and is consistent with the screw direction of the pushing screw in the preheating closed bin.
9. The heat energy recovery type water vapor activation machine as defined in claim 8, wherein: the pushing screw in the horizontal material preheating cylinder extends out of the left end of the horizontal material preheating cylinder and extends into the material bin.
10. A heat recovery type steam activator according to claim 3, wherein: the left driving roller group and the right driving roller group are synchronously driven by a motor, and the motor is a variable frequency motor.
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| CN202310543942.3A CN116576443B (en) | 2023-05-15 | 2023-05-15 | Activating machine for producing activated carbon and heat energy recovery type water vapor generator thereof |
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Cited By (1)
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| CN117511581A (en) * | 2023-12-26 | 2024-02-06 | 西北大学 | Internal and external dual-mode heating coal rapid cracking reaction device and method |
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| CN116576443B (en) | 2023-11-14 |
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