CN211946745U - Nitrogen protection fatlute dry distillation device - Google Patents
Nitrogen protection fatlute dry distillation device Download PDFInfo
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- CN211946745U CN211946745U CN202020220019.8U CN202020220019U CN211946745U CN 211946745 U CN211946745 U CN 211946745U CN 202020220019 U CN202020220019 U CN 202020220019U CN 211946745 U CN211946745 U CN 211946745U
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Abstract
The utility model discloses a nitrogen protection fatlute dry distillation device, including the dry distillation jar, the condenser group, a heater, the forced air cooling radiator, circulating fan and nitrogen gas source, circulating fan's one end is connected to the air inlet department of heater, the gas outlet of heater links to each other with the lower part of dry distillation jar, be equipped with multilayer mummification frame in the dry distillation jar, the condenser group comprises a plurality of tubulation water-cooling steam condenser, every tubulation water-cooling steam condenser all is equipped with the water inlet, the delivery port, the tapping valve, last tubulation water-cooling steam condenser's the other end of first interface connection circulating fan, be equipped with the nitrogen gas that inserts the nitrogen gas source between circulating fan and the heater and insert the mouth, the water inlet of condenser group is connected respectively at the both ends of forced air cooling radiator, the delivery port, establish circulating water pump between last tubul. The utility model discloses area is little, with low costs, utilizes high temperature nitrogen gas to handle fatlute, and simple process can reduce environmental pollution, resource recovery.
Description
Technical Field
The utility model relates to a waste treatment technical field, more specifically relates to a nitrogen protection fatlute dry distillation device.
Background
Oil sludge, i.e., oily sludge, is an oily solid waste produced during oil extraction, transportation, refining and oily sewage treatment. The oil sludge generally has an oil content of 10-50%, a water content of 40-90% and volatile hydrocarbons, and if the oil sludge is not treated and is discharged at will, the environment is polluted and resources are wasted. Therefore, the treatment of the oil sludge can solve the problem of serious environmental pollution, and can also utilize the resources of the oil sludge fully to realize the sustainable development of the resources.
The oil sludge treatment is a very complicated worldwide problem, and through long-term research, some methods for treating the oil sludge are gradually developed and perfected, but the methods have the problems of effectiveness, poor adaptability and the like aiming at a certain type of oil sludge, so that a process method with wide application range, high yield and good effect is lacked.
The currently common methods for treating oil sludge mainly comprise an incineration method, a thermochemical washing method, a solvent extraction method and a biological treatment method. The incineration method is characterized by that firstly, the oil sludge is undergone the processes of blending and dewatering pretreatment, then the concentrated oil sludge is dewatered and dried by means of equipment, and the sludge cake is fed into incinerator to incinerate, after the oil sludge is undergone the process of incineration treatment, the residual oil and harmful substances can be almost removed, and its effect is good, but its investment is large, and it is necessary to add combustion-supporting fuel, in particular, the incineration process is accompanied with serious air pollution, and the crude oil can not be recovered, so that it can result in resource waste. The thermochemical washing method is to repeatedly wash oil sludge by using a hot alkali aqueous solution, then realize solid-liquid separation by an air floatation or cyclone process, and the treated wet sludge also contains moisture and needs further drying treatment, particularly, the residual oil rate in the sludge does not reach the discharge standard, or needs further treatment such as incineration. The solvent extraction method is characterized in that oil sludge is dissolved by an extractant, most of organic matters and oil are extracted from the oil sludge by the extractant after stirring and centrifugation, then the extract is recovered and distilled to separate the solvent from the mixture for recycling, and the recovered oil is used for recycling, but the extractant is very large in usage amount, expensive and high in treatment cost.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a small, with low costs nitrogen protection fatlute dry distillation device of area utilizes the device to handle fatlute, and simple process can reduce environmental pollution, resource recovery.
According to one aspect of the utility model, a nitrogen protection sludge dry distillation device is provided, which comprises a dry distillation tank, a condenser group, a heater, an air cooling radiator, a circulating water pump, a circulating fan and a nitrogen source, wherein an air inlet of the heater is connected with one end of the circulating fan, an air outlet of the heater is connected with the lower part of the dry distillation tank, a multilayer drying rack is arranged in the dry distillation tank, the condenser group is composed of a plurality of tube array water-cooling steam condensers, each tube array water-cooling steam condenser is provided with a water inlet and a water outlet, the bottom of each tube array water-cooling steam condenser is provided with a liquid discharge valve, the top of each tube array water-cooling steam condenser is provided with a first interface, the lower side wall of each tube array water-cooling steam condenser is provided with a second interface, the upper part of the dry distillation tank is connected with the first interface of a first tube array water-cooling steam condenser, the second interface of the last tube array water-cooling steam condenser is connected with the second interface of the previous tube array water-cooling steam condenser, the first interface of the last tube array water-cooling steam condenser is connected with the other end of the circulating fan, an exhaust valve is arranged between the circulating fan and the first interface of the last tube array water-cooling steam condenser, a nitrogen gas inlet connected with a nitrogen gas source is arranged between the circulating fan and the heater, the two ends of the air-cooling radiator are respectively connected with the water inlet of the last tube array water-cooling steam condenser and the water outlet of the first tube array water-cooling steam condenser, and the circulating water pump is arranged on a pipeline between the water inlet of the last tube array water-cooling steam condenser and the air-cooling radiator.
In some embodiments, a pressure relief valve is provided at the top of each tube train water-cooled steam condenser.
In some embodiments, the heater is a gas pipeline type electric heater, and the heater is provided with 1-9 groups.
In some embodiments, the heater is mounted in a fixture, which is provided with a thermal insulating layer.
In some embodiments, there are at least two air-cooled heat sinks.
In some embodiments, the desiccation frame is provided with a plurality of through holes.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses area is little, evenly distribute fatlute on the mummification frame in the retort, the upper cover of retort is covered, nitrogen gas fills in from the bottom of retort against the current, arrange the impurity gas in each part and the pipeline to the greatest extent, nitrogen gas carries out the electrical heating through the heater, high temperature nitrogen gas heating fatlute, oil in the fatlute, water, hydrocarbon vaporizes when different temperatures, the material that vaporizes condenses through the condenser bank of tubes through the bleeder valve and discharges, through different temperatures, obtain different condensates, the gas that can not condense can get into other exhaust treatment devices through discharge valve, the water of cooling usefulness can realize water cyclic utilization through circulating water pump, high temperature nitrogen gas also can be through circulating fan abundant cyclic utilization, heat energy can not wasted yet simultaneously; utilize this nitrogen protection fatlute dry distillation device to handle fatlute, process operation is very simple, carries out the pyrolysis in sealed equipment, can reduce environmental pollution, and cooling water and nitrogen gas, heat energy homoenergetic make full use of circularly, and the energy condensation such as the oil gas that volatilizees is retrieved, avoids the wasting of resources.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a nitrogen-protected sludge dry distillation apparatus according to the present invention;
FIG. 2 is a schematic view of the heater configuration;
figure 3 is a typical plan view of the nitrogen protected sludge retort when used.
Detailed Description
The present invention will be further described with reference to the following embodiments.
In the description of the present invention, it should be noted that the terms "left" and "right" indicate the position or the positional relationship based on the position or the positional relationship shown in the drawings, or the position or the positional relationship that the utility model is usually placed when using, and only for convenience of description, rather than indicating or suggesting that the indicated component must have a specific position, and therefore, the limitation of the present invention cannot be understood. The terms "first," "second," "first," "intermediate," "last," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the nitrogen protection sludge dry distillation device according to an embodiment of the present invention includes a dry distillation tank 1, a condenser group, a heater 3, an air cooling radiator 4, a circulating water pump 5, a circulating fan 6, and a nitrogen source 7. The condenser group comprises a plurality of tubulation water-cooling steam condensers 2, every tubulation water-cooling steam condenser 2 all is equipped with water inlet 21, delivery port 22 and bottom are equipped with the bleeder valve 23, tubulation water-cooling steam condenser 2's top is equipped with first interface 24, tubulation water-cooling steam condenser 2's lower lateral wall is equipped with second interface 25, the position of second interface 25 is less than the height of water inlet 21 on tubulation water-cooling steam condenser 2's the lateral wall, in order to ensure that the vapour that fatlute volatilizees fully passes through tubulation water-cooling steam condenser 2 condensation. In this embodiment, the tube nest water-cooling steam condenser 2 is provided with three, and is called as from left to right in turn: the first tube array water-cooled steam condenser, the middle tube array water-cooled steam condenser and the last tube array water-cooled steam condenser.
The heater 3 is installed in the mount 9, is equipped with thermal insulation layer 91 in the mount 9, and what the heater 3 adopted is gas piping formula electric heater 3, and gas piping formula electric heater 3 can set up to 1 ~ 9 groups. In the present embodiment, as shown in fig. 2, 9 sets of the gas-duct-type electric heaters 3 are used, and the gas-duct-type electric heaters 3 are connected in series.
An air inlet 31 of the heater 3 is connected with one end of the circulating fan 6 through a pipeline, and an air outlet 32 of the heater 3 is connected with the lower part of the retort 1 through a pipeline. A plurality of layers of drying frames 11 are arranged in the retort 1, and a plurality of through holes 111 are arranged on the drying frames 11. The drying shelves 11 are stacked together, and have a structure similar to a steamer. The through holes 111 on the drying rack 11 are also used for allowing the high-temperature nitrogen to fully contact with the oil sludge, so that the efficiency of oil sludge treatment is improved. The upper part of the retort 1 is connected with a first connector 24 of a first tube nest water-cooling steam condenser 2, a second connector 25 of the first tube nest water-cooling steam condenser 2 is connected with a first connector 24 of a middle tube nest water-cooling steam condenser 2, a second connector 25 of the last tube nest water-cooling steam condenser 2 is connected with a second connector 25 of the middle tube nest water-cooling steam condenser 2, and the first connector 24 of the last tube nest water-cooling steam condenser 2 is connected with the other end of the circulating fan 6. And a branch is arranged on a pipeline between the circulating fan 6 and the first connector 24 of the last tube nest water-cooling steam condenser 2 and is used for connecting the exhaust valve 8. A branch is arranged between the circulating fan 6 and the heater 3, and a nitrogen inlet 71 is arranged on the branch and is connected with a nitrogen source 7. In order to cool the cooling water heated after passing through the condenser group, the air-cooled radiators 4 are arranged on a water circulation loop, and at least two air-cooled radiators 4 are arranged. In this embodiment, two air-cooled radiators 4 connected in series are adopted, which are respectively: the first air-cooled radiator and the second air-cooled radiator. The circulating water inlet 41 of the first air-cooled radiator 4 is connected with the water outlet 22 of the first tube nest water-cooled steam condenser 2, and the circulating water outlet 42 of the second air-cooled radiator 4 is connected with the water inlet 21 of the last tube nest water-cooled steam condenser 2. The circulating water pump 5 is arranged on a pipeline between the water inlet 21 of the last tube array water-cooled steam condenser 2 and the air-cooled radiator 4.
A pressure release valve 26 is connected to the top cover of each tube nest water-cooling steam condenser 2. And (3) at normal temperature, excessively filling nitrogen into the whole dry distillation device system, then closing the exhaust valve 8, and adjusting the nitrogen to be low pressure to ensure that the nitrogen in the system is sufficient. At the initial heating stage, the gas expands, the system pressure of the dry distillation device rises, and the pressure release valve 26 is opened when the system pressure exceeds a threshold value, and at the moment, the main gas is still nitrogen until the heating expansion and the cooling contraction reach the balance. In FIG. 1, P is a pressure gauge, T1, T2, T3 and T4 are thermometers, a thermometer T1 is arranged at the gas outlet 32 of the heater 3, the pressure gauge P and the thermometer T2 are arranged on a gas circulation pipeline of the retort 1 and the first shell and tube water-cooled steam condenser 2, a thermometer T3 is arranged on a gas circulation pipeline of the first shell and tube water-cooled steam condenser 2 and the middle shell and tube water-cooled steam condenser 2, and a thermometer T4 is arranged on a gas circulation pipeline between the last shell and tube water-cooled steam condenser 2 and the exhaust valve 8.
Fig. 3 is a typical plan view of a nitrogen-protected sludge retorting apparatus. The oil sludge is uniformly distributed on the drying frames 11, each drying frame 11 is stacked in the dry distillation tank 1, and the upper cover of the dry distillation tank 1 is covered. And (3) starting a circulating fan 6 and a nitrogen inlet 71, filling nitrogen in a countercurrent manner from the bottom of the dry distillation tank 1 at normal temperature, excessively filling the nitrogen into the whole dry distillation device system, exhausting impurity gases in all parts and pipelines, closing an exhaust valve 8, and adjusting the nitrogen to be low pressure to ensure that the nitrogen in the system is sufficient. The heater 3 is started to heat the nitrogen, at the initial heating stage, the gas expands, the system pressure of the dry distillation device rises, the pressure release valve 26 is opened when the system pressure exceeds a threshold value, at the moment, the main gas is still the nitrogen until the heating expansion and the cooling contraction reach the balance. The nitrogen is electrically heated by the heater 3, the high-temperature nitrogen heats the oil sludge, oil, water and hydrocarbon in the oil sludge are vaporized at different temperatures, and the vaporized substances are condensed by the three-stage condenser set and discharged through the liquid discharge valve 23. The water is evaporated at 100 ℃, the pyrolysis reaction of oil sludge is started at 200 ℃, the conversion efficiency of the pyrolysis reaction of 350-500 ℃ is the fastest, the heavy oil is cracked at 370 ℃, lighter oil and gaseous hydrocarbon are formed after 525 ℃, and the quantity of non-condensable gas is increased. Through different temperatures, obtain different condensates, the gas accessible discharge valve 8 that can not condense gets into other exhaust treatment devices, and the water of cooling usefulness can realize water cyclic utilization through circulating water pump 5, and high temperature nitrogen gas also can be through 6 abundant cyclic utilization of circulating fan, and heat energy also can not be extravagant simultaneously.
The utility model discloses with low costs, area is little, and technology operation is very simple, handles fatlute efficiently. The nitrogen is used as a heat transfer medium, and the anti-oxidation and anti-explosion effects are achieved. Utilize this nitrogen protection fatlute dry distillation device to handle fatlute, carry out the pyrolysis in sealed equipment, can reduce environmental pollution, cooling water and nitrogen gas, heat energy homoenergetic make full use of circulation, and the energy condensation such as the oil gas of volatilizing is retrieved, avoids the wasting of resources.
The foregoing is only a few embodiments of the present invention, and it should be noted that, for those skilled in the art, other modifications and improvements can be made without departing from the inventive concept of the present invention, and all of them belong to the protection scope of the present invention.
Claims (6)
1. The nitrogen protection oil sludge dry distillation device is characterized by comprising a dry distillation tank (1), a condenser group, a heater (3), an air cooling radiator (4), a circulating water pump (5), a circulating fan (6) and a nitrogen source (7), wherein one end of the circulating fan (6) is connected with an air inlet (31) of the heater (3), an air outlet (32) of the heater (3) is connected with the lower part of the dry distillation tank (1), a multilayer drying frame (11) is arranged in the dry distillation tank (1), the condenser group is composed of a plurality of tube water-cooling steam condensers (2), each tube water-cooling steam condenser (2) is provided with a water inlet (21), a water outlet (22) and a liquid discharge valve (23) at the bottom, the top of the tube water-cooling steam condenser (2) is provided with a first interface (24), and the lower side wall of the tube water-cooling steam condenser (2) is provided with a second interface (25), the upper part of the dry distillation tank (1) is connected with a first interface (24) of a first tube bank water-cooling steam condenser (2), a second interface (25) of the first tube bank water-cooling steam condenser (2) is connected with a first interface (24) of a next tube bank water-cooling steam condenser (2), the last second interface (25) of the tube bank water-cooling steam condenser (2) is connected with a second interface (25) of a previous tube bank water-cooling steam condenser (2), the last first interface (24) of the tube bank water-cooling steam condenser (2) is connected with the other end of a circulating fan (6), an exhaust valve (8) is arranged between the circulating fan (6) and the first interface (24) of the last tube bank water-cooling steam condenser (2), and a nitrogen gas access port (71) for accessing a nitrogen gas source (7) is arranged between the circulating fan (6) and a heater (3), the water inlet (21) of last tubulation water-cooling steam condenser (2), delivery port (22) of first tubulation water-cooling steam condenser (2) are connected respectively to the both ends of forced air cooling radiator (4), circulating water pump (5) are located on the pipeline between water inlet (21) of last tubulation water-cooling steam condenser (2) and forced air cooling radiator (4).
2. A nitrogen-protected sludge retorting apparatus according to claim 1, wherein a pressure relief valve (26) is provided at the top of each tube still water-cooled steam condenser (2).
3. The nitrogen-protected sludge dry distillation device according to claim 2, wherein the heater (3) is a gas pipeline type electric heater, and 1-9 groups of the heaters (3) are provided.
4. The nitrogen-protected sludge dry distillation device according to claim 3, wherein the heater (3) is mounted in a fixed frame (9), and the fixed frame (9) is provided with a heat-insulating layer (91).
5. The nitrogen-protected sludge retorting apparatus according to claim 4, wherein at least two air-cooled radiators (4) are provided.
6. The nitrogen-protected sludge retorting device according to claim 1, wherein the drying rack (11) is provided with a plurality of through holes (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020220019.8U CN211946745U (en) | 2020-02-27 | 2020-02-27 | Nitrogen protection fatlute dry distillation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020220019.8U CN211946745U (en) | 2020-02-27 | 2020-02-27 | Nitrogen protection fatlute dry distillation device |
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| CN211946745U true CN211946745U (en) | 2020-11-17 |
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| CN202020220019.8U Active CN211946745U (en) | 2020-02-27 | 2020-02-27 | Nitrogen protection fatlute dry distillation device |
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