Anti-clogging acidification oil separation tail gas treatment equipment

Abstract

The present invention relates to the technical field of acidified oil separation tail gas treatment, and discloses an anti-clogging acidified oil separation tail gas treatment device. Each dredging component of the present invention corresponds to a separation layer, and each dredging component can rotate along a hoisting track under the action of the acidified oil separation tail gas rising inside a primary separation tower to clean and dredge the collection tank at the bottom of the separation layer, and can separate the various gas components in the acidified oil separation tail gas inside the primary separation tower separately without interfering with the separation of the various gas components, and can clean and dredge the collection tank at the bottom of the separation layer by rotating each dredging component along the hoisting track without affecting the air tightness inside the primary separation tower through the action of the airflow, thereby effectively avoiding blockage inside the primary separation tower, ensuring the separation efficiency of the primary separation tower after long-term use, significantly extending the maintenance time interval of the primary separation tower, and avoiding losses caused by shutdown maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of acidified oil separation tail gas treatment, in particular to an anti-clogging acidified oil separation tail gas treatment device. Background Art

[0002] Acidified oil refers to the oil obtained by acidifying the soap stock, a by-product produced by the oil refinery. Soap stock is a by-product of alkali refining of animal and vegetable oils and is the product of the deacidification section. Soap stock mainly contains fatty acid salts, that is, sodium fatty acids generated by the reaction of free fatty acids in the oil and sodium hydroxide. Soap stock also contains less neutral oil and more pigments and electrolytes.

[0003] Soapstock contains all the fatty acids of the raw oil. During the alkali refining process, excess alkali is added to saponify a part of the neutral oil and transfer it into the soapstock. At the same time, the soapstock inevitably carries a part of the neutral oil. In addition, there are alkali, glycerol, protein, pigment, etc. Liquid alkali is used in soapstock to neutralize the free fatty acids in the crude oil into sodium salts of fatty acids and form soap colloid, which carries impurities such as neutral oil and pigment. The fatty acid content in soapstock should include soap and neutral oil, of which the soap content is about 25%-30%, the neutral oil content is 12%-25%, and the total fatty acid content is about 40%-50%.

[0004] Acidified oil is essentially fatty acid, which contains pigments and unacidified triglycerides, diglycerides, monoglycerides (neutral oils) and other components. In the production process of acidified oil, a certain amount of gas exhaust will be produced, which mainly includes the following types: Volatile organic compounds (VOCs): Some organic solvents or raw materials may be used in the production process of acidified oil. These substances may evaporate into gas during the reaction process to form VOCs. These compounds usually have a pungent odor and may have a certain impact on the environment and human health; Acidic gas: Since the production of acidified oil involves acidification reaction, some acidic gases such as sulfur dioxide and hydrogen sulfide may be produced. These gases are corrosive and may cause damage to equipment and pipelines, and may pollute the environment; Water vapor: In the production process of acidified oil, a large amount of water vapor may be produced due to operations such as reaction and distillation. These water vapors are usually discharged together with the exhaust gas and may carry some volatile substances.

[0005] In the process of separating and treating the acidified oil exhaust gas, a small amount of incompletely reacted fatty acid soaps, impurities and catalyst precipitates contained in the exhaust gas may remain in the pipeline and condensation system, which may easily cause blockage in the pipeline and condensation system of the separation exhaust gas treatment equipment, thereby affecting the transportation of various components after exhaust gas treatment, resulting in a decrease in transportation efficiency, and further affecting the separation and heat exchange efficiency of the exhaust gas treatment, and affecting the component stability and treatment efficiency of the exhaust gas separation.

[0006] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides an anti-clogging acidified oil separation tail gas treatment device.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0009] A blockage-resistant acidified oil separation tail gas treatment equipment comprises: a primary separation tower and a secondary separation tower, wherein the primary separation tower is provided with a plurality of separation layers from bottom to top, a thermostatic jacket is provided on the outside of each separation layer, each thermostatic jacket is communicated with each thermostatic water tank, each thermostatic water tank can provide a constant temperature coolant to the inside of each thermostatic jacket, so as to keep the temperature at the central position of each separation layer constant; an air inlet channel is provided at the center of the bottom of the primary separation tower, and the acidified oil separation tail gas is input into the primary separation tower from the air inlet channel, and the temperature at the central position of each separation layer in the primary separation tower decreases from bottom to top, and each gas component in the acidified oil separation tail gas entering the primary separation tower is cooled in each separation layer as the boiling point decreases. After condensation, they enter the collecting tanks arranged at the bottom of each separation layer for collection and are then output from the primary separation tower; an exhaust channel is arranged at the top center of the primary separation tower, and the exhaust channel is connected to a heat exchange coil, and the heat exchange coil extends into the interior of the secondary separation tower. The gas with the lowest boiling point discharged from the primary separation tower enters the heat exchange coil and is heat-exchanged and condensed with the coolant inside the secondary separation tower before being discharged from the bottom of the secondary separation tower; a dredging mechanism is hoisted inside the primary separation tower, and the dredging mechanism includes a hoisting track and a plurality of dredging components, each of which corresponds to one separation layer, and each of the dredging components can rotate along the hoisting track under the action of the acidified oil separation tail gas rising inside the primary separation tower to clean and dredge the collection tank at the bottom of the separation layer.

[0010] Preferably, a constant temperature cavity is arranged inside the constant temperature sleeve, and insulation layers are arranged on each side of the constant temperature sleeve away from the separation layer. The constant temperature cavity is isolated from the outside by the insulation layer, and the two constant temperature cavities of two adjacent constant temperature sleeves are also isolated by the insulation layer; a reflux pipe and a liquid inlet pipe are respectively arranged on the top and bottom ends of one side of the constant temperature sleeve close to the constant temperature water tank, and the coolant inside the corresponding constant temperature water tank can enter the constant temperature cavity from the liquid inlet pipe and flow back to the corresponding constant temperature water tank from the reflux pipe.

[0011] Preferably, the temperature of the coolant provided by each of the constant temperature water tanks to the constant temperature chamber of each of the corresponding constant temperature jackets increases from top to bottom; and the temperature of the coolant inside the secondary separation tower is lower than the temperature of the coolant provided by the constant temperature water tank located at the top layer to the constant temperature chamber of the constant temperature jacket located at the top layer.

[0012] Preferably, the top of the secondary separation tower can be connected to the constant temperature water tank located at the top layer through an overflow pipe; between two adjacent constant temperature water tanks, the constant temperature water tank located above can be connected to the constant temperature water tank located below through a connecting pipe; an injection pipe is provided at the bottom end of the secondary separation tower, and a discharge pipe is provided at the bottom end of the constant temperature water tank located at the bottom end.

[0013] Preferably, inside the secondary separation tower, each of the constant temperature jackets and each constant temperature water tank, the flow direction of the cooling liquid is: entering the secondary separation tower from the injection pipe at the bottom end of the secondary separation tower, passing through the secondary separation tower and entering the constant temperature water tank located at the top layer from the overflow pipe at the top end of the secondary separation tower, and then from the constant temperature water tank located at the top layer downward along each connecting pipe in sequence, and finally discharged from the drain pipe at the bottom end of the constant temperature water tank located at the bottom end; and between the corresponding constant temperature jackets and the constant temperature water tanks, the cooling liquid forms a relatively independent circulation circuit.

[0014] Preferably, a collecting pipe is provided at the bottom end of the separation layer and located outside the collecting tank, and one end of the collecting pipe is connected to the collecting tank; the collecting tank includes a collecting baffle and an inclined connecting plate, and the exhaust gas components condensed on the inner wall of the separation layer slide along the inner wall of the separation layer to be collected inside the collecting tank; the exhaust gas components condensed on the side wall of the collecting baffle and the inclined connecting plate of the collecting tank close to the center of the primary separation tower fall along the side wall of the collecting baffle and the inclined connecting plate close to the center of the primary separation tower to be collected inside the collecting tank of the separation layer located below.

[0015] Preferably, the hoisting track includes a plurality of circular tracks and a plurality of connecting hangers, each of the circular tracks is correspondingly arranged inside each of the separation layers, the connecting hangers penetrate from the circular track at the bottom to the circular track at the top, and the top of the connecting hanger is connected to the top inner wall of the primary separation tower.

[0016] Preferably, the inner diameters of several of the annular tracks are larger than the inner diameter of the exhaust channel, and each of the clearing components includes an annular connecting plate and several power scrapers. The annular connecting plates are respectively embedded in the interior of the corresponding annular tracks, and the several power scrapers are evenly arranged on the circumferential outer side of the annular connecting plates.

[0017] Preferably, several of the power scrapers are arranged at an angle. Inside the primary separation tower, each of the power scrapers of the same dredging component can be simultaneously driven by the rising acidified oil separation tail gas to drive the entire dredging component to rotate within the restriction of the corresponding circular track.

[0018] Preferably, a dredging scraper is provided at one end of the power scraper away from the annular track, and the dredging scraper is in close contact with the inner wall of the corresponding separation layer and the inner walls of the collecting groove; the dredging scraper is made of soft material, and the dredging scraper can dredge the corresponding collecting groove while rotating with the power scraper.

[0019] Compared with the prior art, the present invention provides an anti-clogging acidified oil separation tail gas treatment equipment, which has the following beneficial effects:

[0020] 1. This anti-clogging acidified oil separation tail gas treatment equipment, the various gas components in the acidified oil separation tail gas entering the primary separation tower, as the boiling point decreases, are condensed inside each separation layer, and are collected in the collection tanks set at the bottom of each separation layer, and then output to the primary separation tower, so that the various gas components in the acidified oil separation tail gas of each boiling point are separated respectively, and finally the water vapor that does not meet the condensation conditions can be discharged from the primary separation tower, and after entering the heat exchange coil, it is heat exchanged and condensed with the coolant inside the secondary separation tower, and finally discharged from the bottom of the secondary separation tower, completing the separation of the various gas components in the acidified oil separation tail gas, so that the components with similar boiling points can be treated in a targeted manner, which can effectively reduce the difficulty of later treatment and reduce the pollution of the acidified oil separation tail gas, and then it is hoisted and installed inside the primary separation tower. The dredging mechanism comprises a hoisting track and a plurality of dredging components, each dredging component corresponds to a separation layer, and each dredging component can rotate along the hoisting track under the action of the acidified oil separation tail gas rising inside the primary separation tower, so as to clean and dredge the collecting tank at the bottom of the separation layer, and can separate the various gas components in the acidified oil separation tail gas inside the primary separation tower separately without interfering with the various gas components in the acidified oil separation tail gas inside the primary separation tower, and can clean and dredge the collecting tank at the bottom of the separation layer through the action of the airflow without affecting the air tightness inside the primary separation tower, thereby effectively avoiding blockage inside the primary separation tower, ensuring the separation efficiency of the primary separation tower after long-term use, significantly extending the maintenance time interval of the primary separation tower, and avoiding losses caused by shutdown maintenance.

[0021] 2. In the anti-clogging acidified oil separation tail gas treatment equipment, the flow direction of the coolant in the secondary separation tower, each constant temperature jacket and each constant temperature water tank is as follows: entering the secondary separation tower from the injection pipe at the bottom of the secondary separation tower, passing through the secondary separation tower and entering the constant temperature water tank at the top layer from the overflow pipe at the top of the secondary separation tower, and then flowing downward from the constant temperature water tank at the top layer along each connecting pipe in sequence, and finally discharged from the drain pipe at the bottom of the constant temperature water tank at the bottom; the coolant used in this embodiment is normal temperature water, so that when in use, the flow path of the coolant is opposite to the cooling direction of the acidified oil separation tail gas, so that the temperature difference between the coolant and the acidified oil separation tail gas is maintained above a certain range at any position, thereby ensuring the heat exchange between the coolant and the acidified oil separation tail gas While maintaining the efficiency at a high level, it is also possible to avoid a large temperature difference on both sides of the heat exchange conductor for heat exchange between the coolant and the acidified oil separation exhaust gas, resulting in excessive strength requirements for the heat exchange conductor, and to avoid a significant impact on the life of the heat exchange conductor; and between the corresponding constant temperature jacket and the constant temperature water tank, the coolant forms a relatively independent circulation loop, and the top and bottom of the temperature jacket close to the constant temperature water tank are respectively provided with a return pipe and a liquid inlet pipe, so that the coolant supplied from the corresponding constant temperature water tank can enter the constant temperature cavity from the liquid inlet pipe at the bottom, and then flow back to the corresponding constant temperature water tank from the return pipe at the top, which can effectively ensure the stability of temperature exchange in each independent circulation loop, and fully ensure the stability of the temperature maintained by the constant temperature jacket at the central position of each separation layer.

[0022] 3. The anti-clogging acidified oil separation tail gas treatment equipment, through the setting of the collecting tank, allows the tail gas components condensed on the inner wall of the separation layer to slide along the inner wall of the separation layer to be collected inside the collecting tank; the tail gas components condensed on the side wall of the collecting baffle and the inclined connecting plate of the collecting tank close to the center of the primary separation tower fall along the collecting baffle and the inclined connecting plate close to the center of the primary separation tower to be collected inside the collecting tank of the separation layer located below, and are all inclinedly set through a plurality of power scrapers. Inside the primary separation tower, each power scraper of the same dredging component can be simultaneously driven by the rising acidified oil separation tail gas to drive the entire dredging component to rotate under the restriction of the corresponding annular track, and the dredging scraper is tightly attached to the inner wall of the corresponding separation layer and each inner wall of the collecting tank; the dredging scraper is made of soft material. Through the setting of the soft material, the dredging scraper can completely cling to the inner wall of the corresponding separation layer and each inner wall of the collecting tank, and the dredging scraper can scrape and dredge the corresponding collecting tank while rotating with the power scraper.

[0023] 4. This anti-clogging acidified oil separation tail gas treatment equipment has a constant temperature sleeve arranged outside each separation layer, so that the temperature tends to decrease from the center of the separation layer to the inner wall of the separation layer. Therefore, the condensate scraped from the inner wall of the corresponding separation layer and the inner walls of the collecting tank can move along the dredging scraper to the side of the power scraper, and as the temperature rises, the condensate will re-liquefy, thereby ensuring that the amount of condensate on the surface of the dredging scraper remains within a small range, so as to fully ensure the dredging and cleaning effect of the dredging scraper, effectively avoid blockage inside the primary separation tower, ensure the separation efficiency of the primary separation tower after long-term use, and significantly extend the maintenance time interval of the primary separation tower to avoid losses caused by shutdown maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is one of the three-dimensional structural schematic diagrams of an anti-clogging acidified oil separation tail gas treatment device of the present invention;

[0025] Figure 2 This is a second schematic diagram of the three-dimensional structure of an anti-clogging acidified oil separation tail gas treatment device of the present invention;

[0026] Figure 3 It is a three-dimensional structural schematic diagram of the constant temperature jacket and the constant temperature water tank of the present invention;

[0027] Figure 4 It is a cross-sectional schematic diagram of the constant temperature jacket and the constant temperature water tank of the present invention;

[0028] Figure 5 It is a schematic diagram of the internal structure of the primary separation tower of the present invention;

[0029] Figure 6 is a cross-sectional schematic diagram of a primary separation tower of the present invention;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the secondary separation tower of the present invention;

[0031] Figure 8 It is a cross-sectional schematic diagram of the secondary separation tower of the present invention.

[0032] In the figure: 1. primary separation tower; 11. separation layer; 111. collecting tank; 112. collecting pipe; 12. constant temperature jacket; 121. constant temperature chamber; 122. insulation layer; 123. reflux pipe; 124. liquid inlet pipe; 13. air inlet channel; 114. exhaust channel; 2. secondary separation tower; 21. overflow pipe; 22. liquid injection pipe; 3. constant temperature water tank; 31. connecting pipe; 32. drain pipe; 4. heat exchange coil; 5. dredging mechanism; 51. lifting track; 511. circular track; 512. connecting hanger; 52. dredging assembly; 521. circular connecting plate; 522. power scraper; 523. dredging scraper. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes an anti-clogging acidified oil separation tail gas treatment equipment.

[0035] See also Figure 1-Figure 8 A blockage-resistant acidified oil separation tail gas treatment equipment comprises: a primary separation tower 1 and a secondary separation tower 2, wherein the primary separation tower 1 is provided with a plurality of separation layers 11 from bottom to top, and a thermostatic jacket 12 is provided on the outside of each separation layer 11, and each thermostatic jacket 12 is respectively connected with each thermostatic water tank 3, and each thermostatic water tank 3 can provide a constant temperature coolant to the inside of each thermostatic jacket 12, so as to keep the temperature of the central position of each separation layer 11 constant; an air inlet channel 13 is provided at the bottom center of the primary separation tower 1, and the acidified oil separation tail gas is input into the primary separation tower 1 from the air inlet channel 13, and the temperature of the central position of each separation layer 11 in the primary separation tower 1 is successively reduced from bottom to top, and each gas component in the acidified oil separation tail gas entering the primary separation tower 1 is cooled in each separation layer 11 as the boiling point decreases. After condensation, they enter the collecting tank 111 set at the bottom of each separation layer 11 for collection and then output from the primary separation tower 1; an exhaust channel 14 is set in the center of the top of the primary separation tower 1, and the exhaust channel 14 is connected with the heat exchange coil 4, and the heat exchange coil 4 extends into the secondary separation tower 2. The gas with the lowest boiling point discharged from the primary separation tower 1 enters the heat exchange coil 4 and exchanges heat with the coolant inside the secondary separation tower 2. After condensation, it is discharged from the bottom of the secondary separation tower 2; a dredging mechanism 5 is hoisted inside the primary separation tower 1. The dredging mechanism 5 includes a hoisting track 51 and a plurality of dredging components 52. Each dredging component 52 corresponds to a separation layer 11. Each dredging component 52 can rotate along the hoisting track 51 under the action of the acidified oil separation tail gas rising inside the primary separation tower 1 to clean and dredge the collection tank 111 at the bottom of the separation layer 11.

[0036] In specific use, during the acidified oil separation process, the tail gas mainly includes volatile organic compounds (VOCs), acidic gases, water vapor, etc. When treating these tail gases, an anti-clogging acidified oil separation tail gas treatment device of this embodiment is used. In specific use, the acidified oil separation tail gas is input into the primary separation tower 1 from the air inlet channel 13. Through the arrangement of the constant temperature jacket 12 and the constant temperature water tank 3, each constant temperature water tank 3 can provide a constant temperature coolant to the inside of each constant temperature jacket 12 respectively, so as to keep the temperature of the central position of each separation layer 11 constant, so that the temperature of the central position of each separation layer 11 in the primary separation tower 1 decreases from bottom to top, and the temperature inside the primary separation tower 1 decreases from bottom to top, and the temperature from the center of the separation layer 11 to the inner wall of the separation layer 11 decreases from bottom to top. The trend of decreasing is such that each gas component in the acidified oil separation tail gas entering the primary separation tower 1, as the boiling point decreases, is condensed in each separation layer 11, and then enters the collecting tank 111 arranged at the bottom of each separation layer 11 for collection, and then outputs the primary separation tower 1, so that each gas component in the acidified oil separation tail gas of each boiling point is separated respectively, and finally the water vapor that does not meet the condensation condition can be discharged from the primary separation tower 1, and after entering the heat exchange coil 4, it is heat exchanged and condensed with the coolant in the secondary separation tower 2, and finally discharged from the bottom of the secondary separation tower 2, completing the separation of each gas component in the acidified oil separation tail gas, so that each component with a similar boiling point can be treated in a targeted manner, which can effectively reduce the difficulty of later treatment and reduce the pollution of the acidified oil separation tail gas.

[0037] In actual use, the dredging mechanism 5 is hoisted inside the primary separation tower 1, and the dredging mechanism 5 includes a hoisting track 51 and a plurality of dredging components 52. Each dredging component 52 corresponds to a separation layer 11. Each dredging component 52 can rotate along the hoisting track 51 under the action of the acidified oil separation tail gas rising inside the primary separation tower 1, so as to clean and dredge the collection tank 111 at the bottom of the separation layer 11. It can separate the various gas components in the acidified oil separation tail gas inside the primary separation tower 1 without interfering with the separation of each gas component. At the same time, it can clean and dredge the collection tank 111 at the bottom of the separation layer 11 through the rotation of each dredging component 52 along the hoisting track 51 without affecting the air tightness inside the primary separation tower 1, thereby effectively avoiding blockage inside the primary separation tower 1, ensuring the separation efficiency of the primary separation tower 1 after long-term use, significantly extending the maintenance time interval of the primary separation tower 1, and avoiding losses caused by shutdown maintenance.

[0038] For further information, see Figure 1-Figure 4A constant temperature cavity 121 is arranged inside the constant temperature sleeve 12, and insulation layers 122 are arranged on all sides of the constant temperature sleeve 12 away from the separation layer 11. The constant temperature cavity 121 is isolated from the outside by the insulation layer 122, and the two constant temperature cavities 121 of two adjacent constant temperature sleeves 12 are also isolated by the insulation layer 122; a reflux pipe 123 and a liquid inlet pipe 124 are respectively arranged on the top and bottom ends of one side of the constant temperature sleeve 12 close to the constant temperature water tank 3, and the coolant inside the corresponding constant temperature water tank 3 can enter the constant temperature cavity 121 from the liquid inlet pipe 124, and flow back to the corresponding constant temperature water tank 3 from the reflux pipe 123.

[0039] The temperature of the coolant provided by each constant temperature water tank 3 to the constant temperature chamber 121 of each corresponding constant temperature jacket 12 increases from top to bottom; and the temperature of the coolant inside the secondary separation tower 2 is lower than the temperature of the coolant provided by the constant temperature water tank 3 located at the top layer to the constant temperature chamber 121 of the constant temperature jacket 12 located at the top layer.

[0040] The top of the secondary separation tower 2 can be connected to the topmost constant temperature water tank 3 through an overflow pipe 21; between two adjacent constant temperature water tanks 3, the upper constant temperature water tank 3 can be connected to the lower constant temperature water tank 3 through a connecting pipe 31; an injection pipe 22 is provided at the bottom end of the secondary separation tower 2, and a discharge pipe 32 is provided at the bottom end of the constant temperature water tank 3 at the bottom.

[0041] Inside the secondary separation tower 2, each constant temperature jacket 12 and each constant temperature water tank 3, the flow direction of the cooling liquid is: entering the secondary separation tower 2 from the injection pipe 22 at the bottom end of the secondary separation tower 2, passing through the secondary separation tower 2 and entering the constant temperature water tank 3 located at the top layer from the overflow pipe 21 at the top end of the secondary separation tower 2, and then from the constant temperature water tank 3 located at the top layer downward along each connecting pipe 31 in turn, and finally discharged from the drain pipe 32 at the bottom end of the constant temperature water tank 3 located at the bottom end; and between the corresponding constant temperature jacket 12 and the constant temperature water tank 3, the cooling liquid constitutes a relatively independent circulation circuit.

[0042] Therefore, when in use, inside the secondary separation tower 2, each constant temperature jacket 12 and each constant temperature water tank 3, the flow direction of the coolant is: entering the secondary separation tower 2 from the injection pipe 22 at the bottom end of the secondary separation tower 2, passing through the secondary separation tower 2 and entering the constant temperature water tank 3 located at the top layer from the overflow pipe 21 at the top end of the secondary separation tower 2, and then from the constant temperature water tank 3 located at the top layer along each connecting pipe 31 downward in sequence, and finally discharged from the discharge pipe 32 at the bottom end of the constant temperature water tank 3 located at the bottom end; the coolant used in this embodiment is room temperature water, so when in use, the flow path of the coolant is opposite to the cooling direction of the acidified oil separation tail gas, so that the temperature difference between the coolant and the acidified oil separation tail gas is maintained above a certain range at any position, ensuring that the heat exchange efficiency between the coolant and the acidified oil separation tail gas is maintained at a high level, and also avoiding the coolant The heat exchange conductor (the outer wall of the heat exchange coil 4, the outer wall of the separation layer of the primary separation tower, etc.) that exchanges heat with the acidified oil separation tail gas is subjected to a large temperature difference on both sides, resulting in an excessively high strength requirement for the heat exchange conductor, which can also avoid a significant impact on the life of the heat exchange conductor; and between the corresponding constant temperature jacket 12 and the constant temperature water tank 3, the coolant forms a relatively independent circulation circuit, and the top and bottom of the constant temperature jacket 12 close to the constant temperature water tank 3 are respectively provided with a reflux pipe 123 and a liquid inlet pipe 124, so that the coolant supplied from the corresponding constant temperature water tank 3 can enter the constant temperature cavity 121 from the liquid inlet pipe 124 at the bottom, and then flow back to the corresponding constant temperature water tank 3 from the reflux pipe 123 at the top, which can effectively ensure the stability of temperature exchange in each independent circulation circuit, and fully ensure the stability of the temperature maintained by the constant temperature jacket 12 at the central position of each separation layer 11.

[0043] For further information, see Figure 1-Figure 2 , Figure 5-Figure 6 A collecting pipe 112 is provided at the bottom of the separation layer 11 and outside the collecting tank 111, and one end of the collecting pipe 112 is connected to the collecting tank 111; the collecting tank 111 includes a collecting baffle and an inclined connecting plate, and the exhaust gas components condensed on the inner wall of the separation layer 11 slide along the inner wall of the separation layer 11 to be collected inside the collecting tank 111; the exhaust gas components condensed on the side wall of the collecting baffle and the inclined connecting plate of the collecting tank 111 close to the center of the primary separation tower 1 fall along the side wall of the collecting baffle and the inclined connecting plate close to the center of the primary separation tower 1 to be collected inside the collecting tank 111 of the separation layer 11 located below.

[0044] The hoisting track 51 includes several circular tracks 511 and several connecting hangers 512. Each circular track 511 is correspondingly arranged inside each separation layer 11. The connecting hanger 512 passes through the circular track 511 at the bottom to the top, and the top of the connecting hanger 512 is connected to the top inner wall of the primary separation tower 1.

[0045] The inner diameters of the several annular tracks 511 are larger than the inner diameter of the exhaust channel 14. Each clearing component 52 includes an annular connecting plate 521 and several power scrapers 522. The annular connecting plates 521 are respectively embedded in the interior of the corresponding annular tracks 511, and the several power scrapers 522 are respectively and evenly arranged on the outer side of the circumference of the annular connecting plates 521.

[0046] Several power scrapers 522 are all set at an angle. Inside the primary separation tower 1, each power scraper 522 of the same dredging component 52 can be simultaneously driven by the rising acidified oil separation tail gas, driving the entire dredging component 52 to rotate within the limitation of the corresponding annular track 511.

[0047] A dredging scraper 523 is provided at one end of the power scraper 522 away from the circular track 511, and the dredging scraper 523 is in close contact with the inner wall of the corresponding separation layer 11 and the inner walls of the collecting groove 111; the dredging scraper 523 is made of soft material, and the dredging scraper 523 can dredge the corresponding collecting groove 111 while rotating with the power scraper 522.

[0048] In specific use, the exhaust components condensed on the inner wall of the separation layer 11 slide down along the inner wall of the separation layer 11 to be collected inside the collection tank 111 through the setting of the collection tank 111; the exhaust components condensed on the side wall of the collection baffle and the inclined connecting plate of the collection tank 111 close to the center of the primary separation tower 1 fall down along the side wall of the collection baffle and the inclined connecting plate close to the center of the primary separation tower 1 to be collected inside the collection tank 111 of the separation layer 11 located below, and are collected by a plurality of power scrapers 522 which are all inclinedly set. Each power scraper 522 of the same dredging component 52 can be simultaneously driven by the rising acidified oil separation tail gas to drive the entire dredging component 52 to rotate under the restriction of the corresponding annular track 511, and the dredging scraper 523 is in close contact with the inner wall of the corresponding separation layer 11 and the inner walls of the collecting tank 111; the dredging scraper 523 is made of soft material (specifically, when in use, only the part in close contact between the dredging scraper 523 and the inner wall of the corresponding separation layer 11 and the inner wall of the collecting tank 111 has a soft material package). The soft material is used to make the dredging scraper 523 completely close to the inner wall of the corresponding separation layer 11 and each inner wall of the collecting tank 111. The dredging scraper 523 can scrape and dredge the corresponding collecting tank 111 while rotating with the power scraper 522. In actual use, since the constant temperature sleeve 12 is arranged outside each separation layer 11, the temperature tends to decrease from the center of the separation layer 11 to the inner wall of the separation layer 11. Therefore, the inner wall of the corresponding separation layer 11 and the collecting tank 111 are The condensate scraped from each inner wall can move along the dredging scraper 523 to the side of the power scraper 522, and as the temperature rises, the condensate will re-liquefy, thereby ensuring that the amount of condensate on the surface of the dredging scraper 523 is kept within a small range, so as to fully ensure the dredging and cleaning effect of the dredging scraper 523, effectively avoid blockage inside the primary separation tower 1, ensure the separation efficiency of the primary separation tower 1 after long-term use, and significantly extend the maintenance time interval of the primary separation tower 1 to avoid losses caused by shutdown maintenance.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-clogging acidification oil separation tail gas treatment equipment, It is characterized in that include: A primary separation tower (1) and a secondary separation tower (2), wherein the primary separation tower (1) is provided with a plurality of separation layers (11) in sequence from bottom to top, a constant temperature jacket (12) is provided on the outside of each separation layer (11), each of the constant temperature jackets (12) is respectively connected to each of the constant temperature water tanks (3), and each of the constant temperature water tanks (3) can respectively provide a cooling liquid with a constant temperature to the inside of each of the constant temperature jackets (12), so as to keep the temperature at the central position of each of the separation layers (11) constant; An air inlet channel (13) is provided at the center of the bottom of the primary separation tower (1), and the acidified oil separation tail gas is input into the primary separation tower (1) through the air inlet channel (13). The temperature at the center of each separation layer (11) in the primary separation tower (1) decreases from bottom to top. As the boiling point decreases, each gas component in the acidified oil separation tail gas entering the primary separation tower (1) is condensed in each separation layer (11), and then enters a collection tank (111) provided at the bottom of each separation layer (11) for collection, and then outputs from the primary separation tower (1); An exhaust passage (14) is provided at the center of the top of the primary separation tower (1), and the exhaust passage (14) is connected to a heat exchange coil (4), and the heat exchange coil (4) extends into the interior of the secondary separation tower (2). The gas with the lowest boiling point discharged from the primary separation tower (1) enters the heat exchange coil (4), exchanges heat with the coolant in the secondary separation tower (2), and is condensed before being discharged from the bottom of the secondary separation tower (2); A dredging mechanism (5) is installed in the primary separation tower (1), the dredging mechanism (5) comprising a hoisting track (51) and a plurality of dredging components (52), each of the dredging components (52) corresponding to one of the separation layers (11), and each of the dredging components (52) can rotate along the hoisting track (51) under the action of the acidified oil separation tail gas rising in the primary separation tower (1) to clean and dredge the collection tank (111) at the bottom of the separation layer (11); A constant temperature cavity (121) is arranged inside the constant temperature sleeve (12), and each side surface of the constant temperature sleeve (12) away from the separation layer (11) is provided with a heat insulation layer (122), the constant temperature cavity (121) is isolated from the outside by the heat insulation layer (122), and the two constant temperature cavities (121) of two adjacent constant temperature sleeves (12) are also isolated by the heat insulation layer (122); A return pipe (123) and a liquid inlet pipe (124) are respectively provided at the top and bottom of one side of the thermostatic jacket (12) close to the thermostatic water tank (3); the cooling liquid inside the corresponding thermostatic water tank (3) can enter the thermostatic chamber (121) from the liquid inlet pipe (124) and flow back to the corresponding thermostatic water tank (3) from the return pipe (123); A collecting pipe (112) is provided at the bottom end of the separation layer (11) and outside the collecting tank (111), and one end of the collecting pipe (112) is connected to the collecting tank (111); The collecting tank (111) comprises a collecting baffle and an inclined connecting plate, and the exhaust gas components condensed on the inner wall of the separation layer (11) slide along the inner wall of the separation layer (11) to be collected inside the collecting tank (111); The tail gas components condensed on the side wall of the collecting baffle and the inclined connecting plate of the collecting tank (111) close to the center of the primary separation tower (1) fall along the side wall of the collecting baffle and the inclined connecting plate close to the center of the primary separation tower (1) to the inside of the collecting tank (111) of the separation layer (11) located below and are collected; The hoisting track (51) comprises a plurality of annular tracks (511) and a plurality of connecting suspension rods (512), each of the annular tracks (511) being correspondingly arranged inside each of the separation layers (11), the connecting suspension rod (512) penetrating from the annular track (511) at the bottom to the annular track (511) at the top, and the top of the connecting suspension rod (512) is connected to the inner wall of the top of the primary separation tower (1); The inner diameters of the plurality of annular tracks (511) are all larger than the inner diameter of the exhaust passage (14); each of the dredging components (52) comprises an annular connecting plate (521) and a plurality of power scrapers (522); the annular connecting plates (521) are respectively embedded in the interior of the corresponding annular tracks (511); and the plurality of power scrapers (522) are respectively and evenly arranged on the outer side of the circumference of the annular connecting plates (521).

2. The anti-clogging acidified oil separation tail gas treatment equipment according to claim 1, Features: The temperature of the cooling liquid provided by each of the constant temperature water tanks (3) to the constant temperature chamber (121) of each of the corresponding constant temperature jackets (12) increases sequentially from top to bottom; Furthermore, the temperature of the coolant inside the secondary separation tower (2) is lower than the temperature of the coolant provided by the thermostatic water tank (3) located at the top layer to the thermostatic chamber (121) of the thermostatic jacket (12) located at the top layer.

3. The anti-clogging acidified oil separation tail gas treatment equipment according to claim 2, Features: The top of the secondary separation tower (2) can be connected to the constant temperature water tank (3) located at the top layer through an overflow pipe (21); Between two adjacent constant temperature water tanks (3), the constant temperature water tank (3) located above can be connected to the constant temperature water tank (3) located below via a connecting pipe (31); The bottom end of the secondary separation tower (2) is provided with a liquid injection pipe (22), and the bottom end of the constant temperature water tank (3) located at the bottom is provided with a liquid discharge pipe (32).

4. The anti-clogging acidified oil separation tail gas treatment equipment according to claim 3, Features: Inside the secondary separation tower (2), each of the constant temperature jackets (12) and each constant temperature water tank (3), the cooling liquid flows in the following direction: entering the secondary separation tower (2) from the injection pipe (22) at the bottom of the secondary separation tower (2), passing through the secondary separation tower (2) and entering the constant temperature water tank (3) located at the top layer from the overflow pipe (21) at the top of the secondary separation tower (2), and then flowing downward from the constant temperature water tank (3) located at the top layer along each of the connecting pipes (31) in sequence, and finally being discharged from the discharge pipe (32) at the bottom of the constant temperature water tank (3) located at the bottom; Furthermore, between the corresponding constant temperature jacket (12) and the constant temperature water tank (3), the cooling liquid forms a relatively independent circulation circuit.

5. The anti-clogging acidified oil separation tail gas treatment equipment according to claim 1, Features: The plurality of power scrapers (522) are all arranged at an angle. Inside the primary separation tower (1), each power scraper (522) of the same dredging component (52) can be simultaneously driven by the rising acidified oil separation tail gas to drive the entire dredging component (52) to rotate within the restriction of the corresponding annular track (511).

6. The anti-clogging acidified oil separation tail gas treatment equipment according to claim 5, Features: A dredging scraper (523) is provided at one end of the power scraper (522) away from the annular track (511), and the dredging scraper (523) is in close contact with the inner wall of the corresponding separation layer (11) and each inner wall of the collecting tank (111); The dredging scraper (523) is made of a soft material, and the dredging scraper (523) can dredge the corresponding collecting groove (111) while rotating with the power scraper (522).

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