Distillation and purification equipment for water-containing waste oil

Abstract

The utility model provides distillation and purification equipment for water-containing waste oil, which belongs to the field of regeneration treatment of water-containing waste oil and comprises a distillation kettle body which is horizontally arranged and is provided with a distillation chamber, and a distillation kettle body oil inlet for inputting the water-containing waste oil into the distillation chamber and a distillation kettle body steam outlet for outputting water vapor or oil gas out of the distillation chamber are formed in the kettle body; the heating device is used for heating the distillation kettle body; the stirring device comprises a spiral shaft which is horizontally arranged in the distillation chamber and is arranged close to the bottom of the distillation kettle body; and the spiral blade is sleeved outside the spiral shaft and rotates synchronously with the spiral shaft. The water-containing waste oil treatment device solves the technical problems of environmental pollution and resource waste caused by the fact that the existing water-containing waste oil cannot be properly treated, and has the characteristics that the treatment efficiency is high, and the problems of local overheating and scaling are effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of water-containing waste oil regeneration treatment, especially relates to a water-containing waste oil distillation purification equipment. BACKGROUND

[0002] Water-containing waste oil can deteriorate water quality, endanger aquatic resources, affect crop production and pollute the atmosphere. If water-containing waste oil is directly discharged without treatment, it will cause serious pollution to the environment. The heavy oil, waste engine oil and water-containing oil remaining after pyrolysis can be converted into regenerated fuel oil through a distillation purification process, so as to re-enter the market. The purified fuel oil can also be converted into diesel or gasoline through scientific treatment, which not only solves the environmental problem, but also realizes the reuse of resources, reduces the dependence on new resources and has important significance. SUMMARY

[0003] The details of one or more embodiments of the utility model are presented in the following drawings and description, so that other features, purposes and advantages of the present application are more concise and easy to understand.

[0004] The utility model provides a water-containing waste oil distillation purification equipment, solve the technical problem that the existing water-containing waste oil cannot be properly handled and cause environmental pollution and resource waste, have the characteristics that the processing efficiency is high, and the local overheating and scaling problem is effectively reduced.

[0005] The utility model discloses a water-containing waste oil distillation purification equipment, include: distillation kettle body, horizontal setting, have distillation chamber, the kettle body is set up and is used for water-containing waste oil input distillation kettle body oil inlet in distillation chamber, and the distillation kettle body steam outlet for water vapor or oil gas output distillation chamber, heating device is used for heating distillation kettle body, stirring device, stirring device includes: spiral shaft, horizontal setting in distillation chamber is close to the bottom setting of distillation kettle body, rotary vane, cover set in spiral shaft outer, with spiral shaft synchronous rotation, water vapor processing apparatus, when the temperature in distillation chamber is from room temperature heating to 100-120 DEG C and with distillation kettle body steam outlet intercommunication, oil vapor processing apparatus, when the temperature in distillation chamber is 100-120 DEG C and the moisture in distillation chamber evaporates and is finished with distillation kettle body steam outlet intercommunication.

[0006] In some embodiments, the heating device includes a heating jacket covering the distillation kettle body and a heating burner connected to the heating jacket.

[0007] In some embodiments, the water vapor treatment device is connected to the distillation kettle body vapor outlet through a first pipeline, and a first control valve is arranged on the first pipeline; the oil vapor treatment device is connected to the distillation kettle body vapor outlet through a second pipeline, and a second control valve is arranged on the second pipeline.

[0008] In some embodiments, the water vapor treatment device comprises a condenser connected to the first pipeline, and the condenser is horizontally arranged, and the shell of the condenser is connected to a cooling water collecting tank.

[0009] In some embodiments, the oil vapor treatment device comprises a heavy component separation tank connected to the second pipeline, and a separation plate is arranged in the heavy component separation tank, a light component outlet is arranged at the top of the tank body, and a heavy component outlet is arranged at the bottom of the tank body.

[0010] In some embodiments, the oil vapor treatment device further comprises a heavy component collecting tank connected to the heavy component separation tank through the heavy component outlet.

[0011] In some embodiments, the oil vapor treatment device further comprises a light component condenser connected to the heavy component separation tank through the light component outlet, and the light component condenser is a horizontal tube condenser.

[0012] In some embodiments, the oil vapor treatment device further comprises a light oil collecting tank connected to the light component condenser, a pyrolysis dry gas buffer tank connected to the light oil collecting tank, and a pyrolysis dry gas export pump connected to the pyrolysis dry gas buffer tank.

[0013] In some embodiments, the top of the distillation kettle body is further provided with a floating ball type magnetic flap liquid level meter.

[0014] In some embodiments, the stirring device further comprises a driving member connected to the screw shaft.

[0015] Compared with the prior art, the beneficial effects of the utility model lie in:

[0016] The utility model provides a kind of water-containing waste oil distillation purification equipment, by being provided with spiral stirring device in distillation chamber and close to the bottom of distillation kettle body, it is realized that water-containing waste oil in distillation chamber is uniformly stirred at bottom, avoid the problem of local overheating and fouling caused by heavy oil component in water-containing waste oil in distillation chamber bottom accumulation, simultaneously, by being provided with water vapor treatment device and oil vapor treatment device, and specifically limit the communication time of water vapor treatment device and distillation kettle body, and the communication time of oil vapor treatment device and distillation kettle body, ensure that water vapor and oil vapor separated in distillation chamber can be output by water vapor treatment device and oil vapor treatment device respectively, realize the complete separation of both, ensure processing efficiency and processing effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the present utility model, form a part of the present utility model, and the illustrative embodiments of the present utility model and their description serve to explain the present utility model, and do not constitute improper limitation on the present utility model. In the drawings:

[0018] Figure 1 The structure schematic view of water-containing waste oil distillation purification equipment provided by the utility model embodiment is shown in the figure;

[0019] In the above figures: 10, distillation kettle body; 101, distillation chamber; 102, distillation kettle body oil inlet; 103, distillation kettle body steam outlet; 201, heating jacket; 202, heating burner; 301, spiral shaft; 302, spiral blade; 303, driving member; 401, first pipeline; 402, first control valve; 403, condenser; 404, cooling water collection tank; 501, second pipeline; 502, second control valve; 503, heavy component separation tank; 5031, separation plate; 5032, light component outlet; 5033, heavy component outlet; 504, heavy component collection tank; 505, light component condenser; 506, light oil collection tank; 507, pyrolysis dry gas buffer tank; 508, pyrolysis dry gas export pump; 60, float ball type magnetic flap liquid level meter. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the utility model is described and explained below in combination with drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model. Based on the embodiments provided by the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0021] The utility model embodiment provides a kind of water-containing waste oil distillation purification equipment, Figure 1The structure of the water-containing waste oil distillation and purification equipment according to the embodiment of the utility model is shown in the reference Figure 1 As shown, the water-containing waste oil distillation and purification equipment comprises: a distillation kettle body 10, which is horizontally arranged and has a distillation chamber 101; an oil inlet 102 of the distillation kettle body is arranged on the kettle body for inputting water-containing waste oil into the distillation chamber 101; and a steam outlet 103 of the distillation kettle body is arranged for outputting water vapor or oil vapor from the distillation chamber 101; a heating device for heating the distillation kettle body 10; a stirring device, which comprises: a spiral shaft 301, which is horizontally arranged in the distillation chamber 101 and is arranged close to the bottom of the distillation kettle body 10; a spiral blade 302, which is sleeved on the spiral shaft 301 and rotates synchronously with the spiral shaft 301; a water vapor treatment device, which is communicated with the steam outlet 103 of the distillation kettle body when the temperature in the distillation chamber 101 is heated from room temperature to 100-120℃; and an oil vapor treatment device, which is communicated with the steam outlet 103 of the distillation kettle body when the temperature in the distillation chamber 101 is 100-120℃ and the moisture in the distillation chamber 101 is evaporated.

[0022] The water-containing waste oil distillation and purification equipment described above realizes uniform stirring of the water-containing waste oil in the distillation chamber 101 at the bottom by arranging the spiral stirring device in the distillation chamber 101 and close to the bottom of the distillation kettle body 10, avoids local overheating and fouling caused by the accumulation of heavy oil components in the water-containing waste oil at the bottom of the distillation chamber 101, and at the same time, by arranging the water vapor treatment device and the oil vapor treatment device and specifically limiting the communication time of the water vapor treatment device with the distillation kettle body 10 and the communication time of the oil vapor treatment device with the distillation kettle body 10, ensures that the water vapor and oil vapor separated in the distillation chamber 101 can be output through the water vapor treatment device and the oil vapor treatment device respectively, realizes complete separation of the two, and ensures the treatment efficiency and effect.

[0023] The rotation of the stirring device in the distillation kettle body 10 can effectively mix and disperse the moisture and oil in the waste oil, thereby improving the heat transfer efficiency. This design makes the evaporation process more uniform, reducing the possibility of local overheating and fouling. The presence of the stirring device makes the temperature distribution in the evaporation kettle more uniform, avoiding local overheating or supercooling, thereby improving the evaporation efficiency. This uniform heating also helps to reduce energy consumption and prolong the service life of the equipment. In addition, the stirring type evaporation kettle can be designed and configured according to different process requirements, suitable for various waste oil treatment scenarios. Its heating methods are various, including electric heating, heat conduction oil heating, etc., to meet different temperature requirements. At the same time, the design of the stirring device makes the operation more convenient, reduces the need for manual intervention, and improves the automation level of the equipment, which is particularly important for large-scale industrial applications. Due to the design of the stirring device, the cleaning and maintenance of the equipment are relatively easy, reducing the possibility of equipment failure and prolonging the service life of the equipment.

[0024] Further, the top of the distillation kettle body 10 is also provided with a floating ball type magnetic flap liquid level meter 60, and the stirring device further includes a driving member 303 connected with the spiral shaft 301.

[0025] The water-containing waste oil is pumped to the input pipeline by an external delivery pump, and the front end of the water-containing waste oil input pipeline is also provided with a control valve. The external delivery pump is interlocked with the floating ball type magnetic flap liquid level meter 60 on the left top of the fixed stirring type distillation kettle body 10 to control the liquid level in the bin. The fixed stirring type distillation kettle is installed horizontally, and the kettle body is installed horizontally on the base. The kettle body is fixed and stirred by the built-in fixed stirring type spiral machine (stirring device) to mix the reactants uniformly by stirring movement, so that the reaction proceeds quickly and promotes mass transfer. The fixed stirring type distillation kettle body oil inlet 102 is vertically arranged on the upper left side of the kettle body and is connected with the external oil pipeline. The control valve is arranged on the oil pipeline and is automatically closed after the oil is added, which is used to control the high-temperature oil vapor leakage. The oil vapor outlet of the fixed stirring type distillation kettle body 10 is vertically arranged on the upper right side of the kettle body and is connected with the high-temperature oil vapor outlet pipeline. The control valve is arranged on the high-temperature oil vapor outlet pipeline and is used to switch with the water vapor delivery pipeline control switch valve to control the collection of water vapor and high-temperature oil vapor at different temperature sections. The left end plate of the fixed stirring type distillation kettle body 10 is centrally provided with a manhole, which can be used for the installation and maintenance of the fixed stirring type spiral machine in the kettle body. The fixed stirring type distillation kettle is internally provided with a fixed stirring type spiral machine (stirring device) at the lower edge. The driving member 303 is arranged at the lower part of the kettle body left end cover. The left side of the spiral shaft 301 is fixed with the kettle body end cover, and the left bearing seat is arranged. The spiral shaft 301 is provided with a plurality of spiral blades 302. The right bearing seat is arranged at the lower part of the kettle body right end cover. The distilled oil contains water, which must be evaporated before the oil is discharged. In order to ensure that the water in the oil can be completely evaporated, the oil needs to be heated to 100-120℃ for a period of time to ensure that the water is completely evaporated.

[0026] In some embodiments, the heating device includes a heating jacket 201 arranged outside the distillation kettle body 10, and a heating burner 202 connected with the heating jacket 201. Optionally, three groups of heating burners 202 are uniformly arranged on the base of the fixed stirring type distillation kettle body 10, and the heating jacket 201 is arranged outside the fixed stirring type distillation kettle body 10 to provide the required heat for distillation. The heating jacket 201 smoke pipe outlet is vertically arranged on the top of the fixed stirring type distillation kettle body 10, and the discharged flue gas is sent to the external desulfurization device for treatment to meet the emission standard.

[0027] Further, the water vapor treatment device is connected with the distillation kettle body steam outlet 103 through a first pipeline 401, and the first pipeline 401 is provided with a first control valve 402; the oil vapor treatment device is connected with the distillation kettle body steam outlet 103 through a second pipeline 501, and the second pipeline 501 is provided with a second control valve 502. The valves are respectively arranged, and through switching of the valves, the water vapor or oil vapor output in the distillation chamber 101 can be correspondingly introduced into the water vapor treatment device or the oil vapor treatment device, so that the two are separated and further treated respectively.

[0028] In some embodiments, the water vapor treatment device comprises a condenser 403 connected with the first pipeline 401, the condenser 403 is horizontally arranged, and the shell of the condenser 403 is connected with a cooling water collecting tank 404. Further, a water vapor conveying pipeline tee joint is arranged on the left side of the high-temperature oil vapor pipeline, the second control valve 502 on the second pipeline 501 is closed, the first control valve 402 is switched open, the water vapor enters the left side head inlet of the condenser 403, and a local temperature table is further arranged at the lower part of the left side head. The water vapor condenser 403 is horizontally placed, the cooling circulating water passes through the shell, the evaporated water vapor passes through the pipe, the cooling water outlet is arranged at the lower part of the right side head, the cooling water enters the inlet of the cooling water collecting tank 404, the outlet of the cooling water collecting tank 404 is arranged at the lower part of the tank body, and the cooling water is pumped into the middle water collecting pool through an external pump.

[0029] In some embodiments, the oil vapor treatment device comprises a heavy component separation tank 503 connected with the second pipeline 501, the heavy component separation tank 503 is provided with a separation plate 5031, a light component outlet 5032 is arranged at the top of the tank body, and a heavy component outlet 5033 is arranged at the bottom of the tank body. Further, the oil vapor treatment device further comprises a heavy component collecting tank 504 connected with the heavy component separation tank 503 through the heavy component outlet 5033; the oil vapor treatment device further comprises a light component condenser 505 connected with the heavy component separation tank 503 through the light component outlet 5032, and the light component condenser 505 is a horizontal tube condenser 403; the oil vapor treatment device further comprises a light oil collecting tank 506 connected with the light component condenser 505, a pyrolysis dry gas buffer tank 507 connected with the light oil collecting tank 506, and a pyrolysis dry gas external pump 508 connected with the pyrolysis dry gas buffer tank 507.

[0030] After the water in the oil is evaporated, the first pipeline 401 is closed to control the switching of the first control valve 402, and the second control valve 502 on the second pipeline 501 is opened. The distilled high-temperature oil vapor first enters the heavy component separation tank 503 to separate the heavy components in the oil vapor. The heavy component separation tank 503 is vertically arranged, and a temperature remote sensor is arranged on the left side of the upper head of the tank body and is interlocked with the warming burner 202 to control the oil vapor temperature inside the fixed stirring distillation kettle body 10. A pressure sensor is arranged on the right side of the head and is interlocked with the system suction negative pressure pump to control the negative pressure inside the fixed stirring distillation kettle body 10. An oil vapor outlet is arranged in the middle of the head and is connected with the light component oil vapor conveying pipeline.

[0031] A high-temperature oil vapor inlet is arranged in the middle of the left side of the heavy component separation tank 503 and is connected with the second control valve 502 on the second pipeline 501. A cooling oil outlet is arranged in the middle of the lower head of the heavy component separation tank 503, and the cooled heavy oil enters the heavy component collection tank 504 through the oil inlet for temporary storage. A local pressure gauge is arranged on the upper part of the tank body of the heavy component collection tank 504, and the heavy oil collected by the heavy component collection tank 504 is input to the peripheral storage tank through the external oil pump. The oil vapor outlet is arranged in the middle of the head of the heavy component separation tank 503.

[0032] The light component condenser 505 is horizontally installed and is arranged in three groups in a head-to-tail structure, i.e., the first group of air inlets is arranged on the left side of the left head, and the air outlets are arranged on the right side of the lower head; the second group of air inlets is arranged on the upper part of the right head, and the air outlets are arranged on the lower part of the left head; the third group of air inlets is arranged on the upper part of the left head, and the oil outlets are arranged on the lower part of the right head. The total oil outlet is arranged on the lower part of the right head of the third group of light component condensers 505 and is connected with the pipeline sight glass. The collected light oil enters the light oil collection tank 506 through the oil inlet for temporary storage. A local pressure gauge is vertically arranged on the upper part of the tank body of the light oil collection tank 506, and a pyrolysis dry gas separation tank is arranged on the right side of the tank body. The oil outlet is arranged on the lower part of the right head of the tank body, and the collected light oil is conveyed to the peripheral storage tank through the light oil conveying pump. A gas outlet is vertically arranged on the top of the pyrolysis dry gas separation tank, and the separated pyrolysis dry gas enters the pyrolysis dry gas separation tank through the gas inlet. A local pressure gauge is arranged on the upper part of the tank body, and the temporarily stored pyrolysis dry gas in the tank body is conveyed to the peripheral gas storage tank through the system suction negative pressure pump.

[0033] The working process of the above-mentioned water-containing waste oil distillation and purification equipment is as follows:

[0034] The spiral stirring device stirs the water-containing waste oil in the distillation chamber 101. The distilled oil contains water. Before the oil is discharged, the water-containing waste oil in the distillation chamber 101 is heated to 100-120°C and kept for a period of time to ensure that the water is completely evaporated, and then the distilled oil is output through the oil vapor treatment device.

[0035] Any combination of the technical features in the above embodiments can be made, and for the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combination of the technical features does not exist contradiction, it should be considered as the scope of the description.

[0036] The above embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent scope. It should be pointed out that for ordinary skilled person in the art, under the premise of not departing from the utility model concept, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. An aqueous waste oil distillation purification apparatus, characterized by comprising: include: The distillation vessel is horizontally arranged and has a distillation chamber. The vessel has an oil inlet for water-containing waste oil to be input into the distillation chamber and a steam outlet for water vapor or oil vapor to be output from the distillation chamber. A heating device is used to heat the distillation vessel body; A stirring device, the stirring device comprising: The spiral shaft is horizontally disposed within the distillation chamber and is located near the bottom of the distillation vessel. Rotating blades are fitted outside the helical shaft and rotate synchronously with the helical shaft. A steam treatment device is connected to the steam outlet of the distillation vessel when the temperature inside the distillation chamber is heated from room temperature to 100-120°C. The oil vapor treatment device is connected to the steam outlet of the distillation vessel when the temperature inside the distillation chamber is 100-120℃ and the moisture inside the distillation chamber has evaporated completely.

2. The aqueous used oil distillation purification apparatus of claim 1, wherein, The heating device includes: a heating jacket fitted over the body of the distillation vessel, and a heating burner connected to the heating jacket.

3. The aqueous used oil distillation purification apparatus of claim 1, wherein, The steam treatment device is connected to the steam outlet of the distillation vessel via a first pipe, and a first control valve is provided on the first pipe; the oil steam treatment device is connected to the steam outlet of the distillation vessel via a second pipe, and a second control valve is provided on the second pipe.

4. The aqueous used oil distillation purification apparatus of claim 3, wherein, The steam treatment device includes a condenser connected to the first pipeline. The condenser is horizontally arranged, and the shell of the condenser is connected to a cooling water collection tank.

5. The aqueous used oil distillation purification apparatus of claim 3, wherein, The oil vapor treatment device includes a heavy component separation tank connected to the second pipeline. The heavy component separation tank is equipped with a separation plate, and the top of the tank has a light component outlet, while the bottom of the tank has a heavy component outlet.

6. The aqueous used oil distillation purification apparatus of claim 5, wherein, The oil vapor treatment device also includes a heavy component collection tank, which is connected to the heavy component separation tank through the heavy component outlet.

7. The aqueous used oil distillation purification apparatus of claim 5, wherein, The oil vapor treatment device also includes a light component condenser, which is connected to the heavy component separator via the light component outlet. The light component condenser is a horizontal tube condenser.

8. The aqueous used oil distillation purification apparatus of claim 7, wherein, The oil vapor treatment device further includes a light oil collection tank connected to the light component condenser, a pyrolysis dry gas buffer tank connected to the light oil collection tank, and a pyrolysis dry gas external pump connected to the pyrolysis dry gas buffer tank.

9. The aqueous used oil distillation purification apparatus of claim 1, wherein, The top of the distillation vessel is also equipped with a float-type magnetic level gauge.

10. The aqueous used oil distillation purification apparatus of claim 1, wherein, The stirring device also includes a drive component connected to the spiral shaft.

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