A new type of mixed oil refining explosion-proof centrifugal device

Abstract

The utility model discloses a novel mixed oil refining explosion -proof centrifugal device relates to chemical engineering technical field. A novel mixed oil refining explosion -proof centrifugal device, the outside of steaming pot is equipped with the casing, the top center of casing is equipped with free gas access pipe, the left side of casing is equipped with water inlet, oil outlet, oil inlet, and the oil inlet is connected with oil outlet through the pipeline, the right side of casing is equipped with shutdown emptying valve, blow -off valve, and blow -off valve is connected with the bottom emptying of casing through the pipeline. Through the heat exchange of the dry tower oil outlet heat and the explosion -proof centrifugal machine steaming pot water temperature, the load of the extraction workshop system process water cooling is reduced, and the water temperature is effectively reduced, so that the solvent recovery system produces better effect, the dry tower oil outlet heat is effectively utilized in the explosion -proof centrifugal machine nitrogen seal water steaming pot, the steam usage is reduced, carbon emission is reduced, and it is more favorable to solvent recovery, and solvent consumption is reduced.

Description

Technical Field

[0001] This utility model relates to the field of chemical engineering technology, specifically to a novel explosion-proof centrifugal device for refining mixed oil. Background Technology

[0002] In existing mixed oil refining processes, the oil from the desoap centrifuge to the second distillation and the oil from the stripping tower exchange heat with each other. After water washing, the oil temperature at the drying tower is around 120℃, which needs to be reduced to around 60℃ to reach a safe storage temperature. In the current process, this cooling relies entirely on the circulating water in the leaching workshop, resulting in a large cooling load on the system's water circulation. The nitrogen sealing water and slag discharge water in the explosion-proof centrifuge contain solvent oil, and direct discharge poses a significant safety hazard and increases production costs. In the current process, the water is discharged to an independent cooking tank for direct steam cooking to recover the solvent, and then discharged to the wastewater treatment plant. This results in a large amount of steam consumption and high economic costs. Utility Model Content

[0003] The purpose of this invention is to provide a novel explosion-proof centrifugal device for refining mixed oil, which solves the problems of high economic cost due to large steam consumption and significant safety hazards from direct discharge.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A novel explosion-proof centrifugal refining device for mixed oil includes a drying tower, a water-cooled heat exchanger, an explosion-proof centrifuge, a nitrogen-sealed tank, and a cooking tank. The cooking tank is characterized by having an outer shell, a free gas inlet pipe at the top center of the shell, a water inlet at the upper left side of the shell, an oil outlet below the water inlet, an oil inlet at the middle left side of the shell connected to the oil outlet via a stainless steel heat exchange coil, a shutdown vent valve at the outer side of the middle right side of the shell connected to the side wall of the shell via a pipe, and a drain valve at the lower outer side of the right side of the shell connected to a bottom vent valve via a pipe.

[0005] Furthermore, a partition is provided in the middle of the interior of the housing, and a vertical free gas collection pipe and an overflow pipe are provided inside the housing. The upper parts of the free gas collection pipe and the overflow pipe are located on the upper part of the inner side of the housing, and the lower parts of the free gas collection pipe and the overflow pipe pass through the partition.

[0006] The beneficial effects of this utility model are as follows: This application reduces the load on the process water cooling of the leaching workshop system by exchanging heat from the oil output of the drying tower and the water temperature of the explosion-proof centrifuge cooking tank, effectively lowering the water temperature and allowing the solvent recovery system to produce better results. The nitrogen-sealed water cooking tank of the explosion-proof centrifuge effectively utilizes the heat from the oil output of the drying tower, reducing steam consumption. With a mixed oil refining capacity of 200 tons / day, approximately 6 tons of steam are saved daily, directly saving approximately 1,000 yuan / day in costs. Furthermore, the reduction in steam consumption reduces carbon emissions and decreases the cooling water temperature of the leaching workshop system, which is more conducive to solvent recovery and reduces solvent consumption.

[0007] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0009] Figure 2 for Figure 1 Enlarged view of circle A in the middle.

[0010] Explanation of reference numerals in the attached drawings: 1. Drying tower; 2. Water-cooled heat exchanger; 3. Explosion-proof centrifuge; 4. Nitrogen sealed tank; 5. Cooking tank; 6. Sealed water overflow port; 50. Shell; 51. Free gas inlet pipe; 52. Water inlet; 53. Oil outlet; 54. Oil inlet; 55. Shutdown vent valve; 56. Drain valve; 57. Partition; 58. Free gas collection pipe; 59. Overflow pipe; 60. Stainless steel heat exchange coil; 61. Vent valve. Detailed Implementation

[0011] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0012] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0013] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0014] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0015] Please see Figure 1 A novel explosion-proof centrifugal device for refining mixed oil, as shown in a preferred embodiment of this application, includes a drying tower 1, a water-cooled heat exchanger 2, an explosion-proof centrifuge 3, a nitrogen sealed tank 4, and a cooking tank 5. The cooking tank 5 is provided with a shell 50. A free gas inlet pipe 51 is provided at the center of the top of the shell 50. A water inlet 52 is provided at the upper part of the left side of the shell 50. An oil outlet 53 is provided at the lower part of the water inlet 52. An oil inlet 54 is provided at the middle part of the left side of the shell 50. The oil inlet 54 is connected to the oil outlet 53 through a stainless steel heat exchange coil 60. A shutdown vent valve 55 is provided on the outer side of the middle right side of the shell 50. The shutdown vent valve 55 is connected to the side wall of the shell 50 through a pipe. A drain valve 56 is provided on the outer side of the lower right side of the shell 50. The drain valve 56 is connected to the bottom vent valve 61 of the shell 50 through a pipe.

[0016] The interior of the housing 50 is provided with a partition 57 in the middle. The interior of the housing 50 is provided with a vertical free gas collection pipe 58 and an overflow pipe 59. The upper part of the free gas collection pipe 58 and the overflow pipe 59 are located on the upper part of the inner side of the housing 50, and the lower part of the free gas collection pipe 58 and the overflow pipe 59 pass through the partition 57 respectively.

[0017] In summary, this utility model provides a novel explosion-proof centrifugal device for mixed oil refining. This device exchanges heat between the oil output from the drying tower and the water temperature in the explosion-proof centrifuge cooking tank, reducing the cooling load on the process water in the leaching workshop system and effectively lowering the water temperature, thus improving the solvent recovery system. The explosion-proof centrifuge nitrogen-sealed water cooking tank effectively utilizes the heat from the oil output from the drying tower, reducing steam consumption. For a mixed oil refining capacity of 200 tons / day, this saves approximately 6 tons of steam per day, directly reducing costs by approximately 1000 yuan / day. Furthermore, the reduced steam consumption lowers carbon emissions and reduces the cooling water temperature in the leaching workshop system, which is more conducive to solvent recovery and reduces solvent consumption.

[0018] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0019] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A novel explosion-proof centrifugal refining device for mixed oils, comprising a drying tower (1), a water-cooled heat exchanger (2), an explosion-proof centrifuge (3), a nitrogen-sealed tank (4), and a cooking tank (5), characterized in that, The cooking tank (5) is provided with a shell (50) on the outside. A free gas inlet pipe (51) is provided at the top center of the shell (50). A water inlet (52) is provided at the upper left side of the shell (50). An oil outlet (53) is provided at the lower part of the water inlet (52). An oil inlet (54) is provided at the middle left side of the shell (50). The oil inlet (54) is connected to the oil outlet (53) through a stainless steel heat exchange coil (60). A shutdown vent valve (55) is provided on the outer side of the middle right side of the shell (50). The shutdown vent valve (55) is connected to the side wall of the shell (50) through a pipe. A drain valve (56) is provided on the outer side of the lower right side of the shell (50). The drain valve (56) is connected to the bottom vent valve (61) of the shell (50) through a pipe.

2. The novel explosion-proof centrifugal refining device for mixed oil as described in claim 1, characterized in that, The housing (50) has a partition (57) in the middle. The housing (50) has a vertical free gas collection pipe (58) and an overflow pipe (59) inside. The upper part of the free gas collection pipe (58) and the overflow pipe (59) are located on the upper part of the inner side of the housing (50). The lower part of the free gas collection pipe (58) and the overflow pipe (59) pass through the partition (57) respectively.

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