Rapeseed edible blend oil refining device with decolorization function

Abstract

The application discloses a rapeseed edible blending oil refining device with a decoloring function, and relates to the technical field of rapeseed oil refining. The refining device comprises a mounting seat, a degumming tank, a deacidification tank, a decoloring tank, a filter and a deodorization tank are arranged on the mounting seat. Compared with the current rapeseed oil refining device, the decoloring tank is internally provided with a segmentation mechanism and a primary filtering mechanism. The segmentation mechanism solves the problem of low utilization rate of the decoloring agent in the traditional decoloring process. The primary filtering mechanism has an extrusion oil removal function, thereby preventing the decoloring agent discharged from the decoloring tank from carrying a large amount of rapeseed oil. The steam recovery mechanism is further arranged. On one hand, the steam recovery mechanism improves the deacidification rate. On the other hand, when the external steam conveying system fails, the steam recovery mechanism can drive the steam to circulate in a closed loop, thereby ensuring that the temperature in the deacidification tank is maintained stable and the continuity of the deacidification process is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rapeseed oil refining, and particularly relates to a rapeseed edible blend oil refining device with a decolorization function. BACKGROUND

[0002] In the contemporary edible oil market, rapeseed edible blend oil occupies an important position due to its unique advantages. It is a blend of rapeseed oil and other plant oil or oils according to a specific ratio. Before use, the rapeseed oil usually needs to be subjected to processes such as degumming, deacidification, decolorization, deodorization and the like. The processes are interrelated, and any problem in any link can significantly affect the quality of the final product.

[0003] At present, in the process of refining and decolorizing rapeseed oil, a decolorizing agent is usually added, and then stirring or other methods are used to remove the pigments in the oil. However, this method has many drawbacks. For example, under the action of gravity, part of the decolorizing agent is prone to precipitate at the bottom of the tank and cannot fully contact with the rapeseed oil, which greatly affects the decolorization efficiency and effect. In addition, after decolorization, in order to reduce the filtering load of the subsequent filter and reduce the replacement frequency of the filter material, the decolored rapeseed oil is usually preliminarily filtered in the decolorization tank before being discharged into the subsequent filter. However, the existing preliminary filtering method cannot effectively separate the decolorizing agent from the rapeseed oil, so that the decolorizing agent discharged from the decolorization tank often contains a large amount of rapeseed oil. This not only causes a large amount of oil waste and reduces the oil recovery rate, but also makes the rapeseed oil exposed to the air easily oxidize and deteriorate, which affects the product quality and economic benefits. Finally, rapeseed oil also faces many problems in the deacidification process. For example, the heat exchange tubes in the traditional deacidification tank are usually fixedly installed, which makes it difficult to ensure the uniformity of the temperature. In addition, when the external steam conveying system fails, the traditional equipment lacks effective measures to deal with it. When the temperature in the deacidification tank rapidly decreases, the quality of the rapeseed oil in the deacidification process is inevitably affected, which is not conducive to the subsequent blending with other plant oils. SUMMARY

[0004] The present application aims to provide a rapeseed edible blend oil refining device with a decolorization function to solve the problems in the prior art.

[0005] In order to achieve the above object, the present application provides the following technical scheme: a rapeseed edible blending oil refining device with decolorization function, the refining device comprises a mounting seat, a degumming tank, an acid removal tank, a decolorizing tank, a filter and a deodorizing tank are arranged on the mounting seat, the degumming tank and the acid removal tank are connected through a first conduit and a first liquid pump, the acid removal tank and the decolorizing tank are connected through a second conduit and a second liquid pump, the decolorizing tank and the filter are connected through a third conduit and a third liquid pump, the filter and the deodorizing tank are connected through a fourth conduit and a fourth liquid pump, when working, the rapeseed oil flows in the degumming tank, the acid removal tank, the decolorizing tank, the filter and the deodorizing tank in turn through the first liquid pump, the second liquid pump, the third liquid pump and the fourth liquid pump, the rapeseed oil is subjected to degumming treatment through the degumming tank, the rapeseed oil is subjected to acid removal treatment through the acid removal tank, the rapeseed oil is subjected to decolorization treatment through the decolorizing tank, the rapeseed oil subjected to decolorization treatment is filtered through the filter to remove the decolorizing agent in the rapeseed oil, and the rapeseed oil is subjected to deodorization treatment through the deodorizing tank, compared with the current rapeseed oil refining device, the decolorizing tank is provided with a stirring rod, a segmentation mechanism and a preliminary filtering mechanism inside, a second motor is arranged above the decolorizing tank, the second motor is connected with the stirring rod, and the stirring rod penetrates the segmentation mechanism, the working area of the decolorizing tank is divided into two parts through the segmentation mechanism, when the rapeseed oil subjected to acid removal treatment enters the decolorizing tank, the staff can add the decolorizing agent into the decolorizing tank twice, so that there is an appropriate amount of decolorizing agent in the two working areas of the decolorizing tank, then the stirring rod is driven to rotate in the decolorizing tank through the second motor, so as to ensure that the decolorizing agent and the rapeseed oil are fully mixed and contacted, the utilization rate of the decolorizing agent in the decolorizing tank can be improved through the segmentation mechanism, so as to avoid that part of the decolorizing agent cannot be uniformly dispersed in the rapeseed oil due to sedimentation, so as to cause insufficient actual effective amount and affect the decolorization effect, when the rapeseed oil decolorization work is completed, the rapeseed oil and the decolorizing agent are preliminarily separated through the preliminary filtering mechanism, so as to reduce the filtering load of the subsequent filter, finally, the preliminary filtering mechanism in the present application has an extrusion oil removal function, on the one hand, it prevents the decolorizing agent discharged from the decolorizing tank from containing too much rapeseed oil, so as to affect the oil recovery rate, on the other hand, it avoids that the decolorizing agent in the decolorizing tank has too much rapeseed oil oxidized when being discharged due to exposure to air, and then waste phenomenon occurs.

[0006] Further, the deacidification tank is provided with a first motor above, the inside of the deacidification tank is respectively provided with an air outlet pipe and an air inlet pipe at the upper and lower ends, a heat exchange pipe is arranged between the air outlet pipe and the air inlet pipe, the top end of the heat exchange pipe is connected with the first motor through a transmission shaft, the air outlet end of the heat exchange pipe is located in the air outlet pipe, the air inlet end of the heat exchange pipe is located in the air inlet pipe, the air inlet pipe is connected with an external steam conveying system, when the rapeseed oil enters the deacidification tank for deacidification treatment, the staff can convey high-temperature steam into the air inlet pipe through the external steam conveying system, the high-temperature steam is used for heating the rapeseed oil in the deacidification tank, so that the free fatty acid in the rapeseed oil is volatilized, compared with the current rapeseed oil refining device, the first motor is arranged, when the heat exchange pipe is used for heating and deacidification treatment of the rapeseed oil in the deacidification tank, the first motor can drive the heat exchange pipe to rotate in the deacidification tank, so that the uniformity of heating is ensured, and the temperature difference between the area close to the heat exchange pipe and the area far away from the heat exchange pipe of the rapeseed oil is avoided, finally, the rapeseed oil needs to be in a vacuum environment in the deacidification, decolorization and deodorization stages.

[0007] Further, the inside of the deacidification tank is further provided with an annular pipe at the upper end, a plurality of groups of exhaust pipes are arranged below the annular pipe, a recovery tank is further arranged on the mounting seat, a steam recovery mechanism is arranged in the recovery tank, one end of the steam recovery mechanism is connected with the air outlet pipe, the other end of the steam recovery mechanism is connected with the annular pipe through a reflux pipe, when the rapeseed oil is subjected to deacidification treatment, an external vacuum pump continuously exhausts the volatilized gas in the deacidification tank, so as to maintain the vacuum state of the deacidification tank, meanwhile, the high-temperature steam conveyed into the air inlet pipe by the external steam conveying system passes through the heat exchange pipe, the air outlet pipe, the steam recovery mechanism, the reflux pipe and the annular pipe in sequence, and finally is exhausted from the plurality of groups of exhaust pipes into the rapeseed oil in the deacidification tank, when the steam enters the rapeseed oil, the free fatty acid is more likely to escape from the oil, so that the deacidification efficiency of the rapeseed oil is effectively improved.

[0008] Further, the steam recovery mechanism comprises a temperature adjusting cavity and a gas guide pipe, a heating element is arranged in the temperature adjusting cavity, the air inlet end of the temperature adjusting cavity is connected with the air outlet pipe, one end of the gas guide pipe is connected with the air outlet end of the temperature adjusting cavity, the other end of the gas guide pipe is connected with the reflux pipe through a first valve, when the high-temperature steam conveyed into the air inlet pipe by the external steam conveying system is reused, the staff can open the heating element in the temperature adjusting cavity according to the need, so that the steam exhausted from the air outlet pipe can be heated after entering the temperature adjusting cavity, and then the temperature of the steam contacted with the rapeseed oil in the subsequent process is maintained in the best interval required by the process, so as to avoid the decline of the steam carrying capacity of the free fatty acid due to the substandard temperature.

[0009] Further, the air inlet pipe is connected with the external steam conveying system through a second valve, a communicating seat is arranged at the lower end of the deacidification tank, the heat exchange pipe penetrates the communicating seat, a gas hole is arranged at one end of the heat exchange pipe in the communicating seat, the steam recovery mechanism further comprises a circulating pump, the air guide pipe is a tee structure, one end of the air guide pipe is connected with the air inlet end of the circulating pump through a third valve, the air outlet end of the circulating pump is connected with the communicating seat through a circulating pipe, and a fourth valve is arranged on the circulating pipe. In normal working, the first valve on the air guide pipe and the second valve on the air inlet pipe are in the open state, and the third valve on the air guide pipe and the fourth valve on the circulating pipe are in the closed state, at this time, the high-temperature steam conveyed into the air inlet pipe by the external steam conveying system can flow along the path of the heat exchange pipe, the air outlet pipe, the temperature adjusting cavity, the air guide pipe, the backflow pipe and the annular pipe, when the external steam conveying system fails to work due to an accident, the first valve on the air guide pipe and the second valve on the air inlet pipe can be immediately closed by the staff, and then the third valve on the air guide pipe and the fourth valve on the circulating pipe are opened, at this time, the steam in the steam recovery mechanism can be driven to flow along the path of the circulating pipe, the communicating seat, the heat exchange pipe, the air outlet pipe, the temperature adjusting cavity, the air guide pipe and the circulating pump through the circulating pump, the temperature of the circulating steam is ensured to always meet the process requirement through the heating element in the temperature adjusting cavity, through the above technical scheme, the temperature in the deacidification tank can be maintained when the external steam conveying system fails, and the deacidification effect of the rapeseed oil in the deacidification tank is prevented from being affected due to temperature fluctuation.

[0010] Further, the segmentation mechanism includes two segmentation seats, which are respectively arranged at the upper and lower ends inside the decoloring tank, each of the segmentation seats is a funnel structure, a through hole is arranged at the middle position of each of the segmentation seats, an installation groove is arranged on each side of each of the through holes, a first air cylinder and a segmentation plate are arranged in each of the installation grooves, the segmentation plate is controlled to move through the first air cylinder, the through hole on each of the segmentation seats is controlled to be closed or opened through the two segmentation plates cooperating with each other, when the rapeseed oil after deacidification needs to enter the decoloring tank, the through hole on the segmentation seat at the lower end inside the decoloring tank needs to be closed (the through hole on the segmentation seat at the upper end inside the decoloring tank is in an open state), at this time, the two working areas inside the decoloring tank are connected, the rapeseed oil after deacidification falls into the two working areas inside the decoloring tank from the top end of the decoloring tank, when the worker needs to add the decoloring agent into the decoloring tank, the decoloring agent can be added twice, when the decoloring agent is added for the first time, most of the decoloring agent falls onto the segmentation seat at the lower end inside the decoloring tank through the through hole on the segmentation seat at the upper end inside the decoloring tank under the action of gravity, then, before the decoloring agent is added for the second time, the worker needs to close the through hole on the segmentation seat at the upper end inside the decoloring tank, at this time, the decoloring agent added for the second time falls onto the segmentation seat at the upper end inside the decoloring tank under the action of gravity, when the addition of the decoloring agent is completed, the second motor is started, and the stirring rod is driven to rotate in the decoloring tank through the second motor, so that the decoloring agent in the two working areas inside the decoloring tank can be fully mixed and contacted with the rapeseed oil, compared with the current method of directly pouring the decoloring agent into the decoloring tank, the utilization rate of the decoloring agent in the decoloring tank can be effectively improved through the segmentation mechanism, and part of the decoloring agent cannot be uniformly dispersed in the rapeseed oil due to precipitation, so that the actual effective amount is insufficient, and the decoloring effect is affected.

[0011] Further, an arc-shaped groove is arranged at one end of the segmentation plate close to the stirring rod, and the arc-shaped groove is attached to the wall surface of the stirring rod, through the above technical solution, when the two segmentation plates cooperating with each other are closed, the stirring rod can rotate between the two segmentation plates cooperating with each other, so that the worker only needs to use one stirring rod to stir and mix the decoloring agent and the rapeseed oil in the two working areas inside the decoloring tank.

[0012] Further, the primary filtering mechanism comprises a squeezing assembly and a filter seat, the filter seat is arranged below the squeezing assembly, a filter plate is arranged on the filter seat, a residue discharging channel is arranged at the side end of the filter seat, a residue discharging pipe is arranged at the lower end of the residue discharging channel, a sealing assembly is arranged at the side end of the residue discharging channel, the opening and closing of the residue discharging channel is controlled through the sealing assembly, after the rapeseed oil decolorization is completed, the staff can open the through holes on the two split seats, then the rapeseed oil falls on the filter seat and passes through the filter plate, the decolorizing agent in the rapeseed oil is intercepted by the filter plate, the primary filtered rapeseed oil is conveyed into the filter for secondary filtering through the third liquid pump, when the primary filtering of the rapeseed oil is completed, the staff can squeeze the decolorizing agent intercepted on the filter plate through the squeezing assembly, so as to prevent the decolorizing agent discharged from the decolorizing tank from carrying a large amount of rapeseed oil, when the squeezing and deoiling of the decolorizing agent is completed, the residue discharging channel is opened through the sealing assembly, so as to facilitate the staff to clean the decolorizing agent on the filter plate to the outside.

[0013] Further, the squeezing assembly comprises a fixed plate and a movable plate, the fixed plate is fixedly installed on the stirring rod, the movable plate is arranged below the fixed plate, a second air cylinder is arranged in the fixed plate, the working end of the second air cylinder is connected with the movable plate, an extension block is arranged at the end of the movable plate close to the inner wall of the decolorizing tank, the extension block and the movable plate are connected through a compression spring, when it is needed to squeeze and deoil the decolorizing agent intercepted on the filter plate, the staff can open the second air cylinder, the movable plate is driven to ascend and descend through the second air cylinder, when the movable plate descends, the decolorizing agent intercepted on the filter plate is squeezed through the movable plate, so as to remove the rapeseed oil carried by the decolorizing agent, when the squeezing and deoiling of the decolorizing agent intercepted in a region of the filter plate is completed, the staff can open the second motor, the squeezing assembly is driven to rotate above the decolorizing agent which has not been subjected to the squeezing and deoiling through the second motor, then the step of the previous squeezing and deoiling is repeated by opening the second air cylinder again, through the above technical solution, the present application can effectively prevent the decolorizing agent discharged from the decolorizing tank from carrying a large amount of rapeseed oil, ensure the subsequent oil recovery rate, and avoid the decolorizing agent in the decolorizing tank from carrying a large amount of rapeseed oil which is oxidized due to exposure to air when being discharged, thereby causing waste.

[0014] Further, the sealing assembly comprises two sealing plates and electromagnets, the two sealing plates are oppositely arranged at the side end of the residue discharging channel, one electromagnet is arranged at the side of each sealing plate away from the residue discharging channel, each sealing plate is connected with the filter seat through a plurality of sealing springs, each sealing plate is made of ferromagnetic material, when the decolorizing agent on the filter plate is completely squeezed and deoiled, the staff can open the two electromagnets, the two sealing plates are driven to move away from each other through the two electromagnets, until the residue discharging channel is completely opened, then the fixed plate is driven to rotate through the second motor, the movable plate is driven to descend through the second air cylinder, the decolorizing agent on the filter plate is scraped into the residue discharging channel through the movable plate, so as to facilitate the staff to recycle and process the decolorizing agent after the squeezing and deoiling.

[0015] Compared with the prior art, the beneficial effects of the present application are: compared with the current rapeseed oil refining device, the present application is provided with a segmentation mechanism and a preliminary filtering mechanism inside the decoloring tank, the segmentation mechanism solves the problems of low utilization rate of decoloring agent and serious oil loss in the traditional decoloring process, avoids the local aggregation of the decoloring agent due to precipitation in the traditional process, so that the actual effective amount is insufficient, which affects the decoloring effect, and the preliminary filtering mechanism can preliminarily separate the rapeseed oil and the decoloring agent, so as to reduce the filtering load of the subsequent filter, in addition, the preliminary filtering mechanism in the present application has the function of extrusion oil removal compared with the current direct use of filter screen and the like, on the one hand, it prevents the decoloring agent discharged from the decoloring tank from carrying a large amount of rapeseed oil, so as to affect the oil recovery rate, on the other hand, it avoids the oxidation and deterioration of a large amount of rapeseed oil due to exposure to air when the decoloring agent in the decoloring tank is discharged, thereby avoiding the waste phenomenon, the present application is further provided with movable heat exchange pipes in the deacidification tank, through the synergistic effect of the first motor and the heat exchange pipes, the high-temperature steam can uniformly heat the rapeseed oil, so as to ensure that the temperature in each area of the tank is consistent, and avoid the problems of oil oxidation caused by local overheating or incomplete deacidification caused by insufficient local temperature, finally, the present application is further provided with a steam recovery mechanism, through the steam recovery mechanism, the steam can be used as a "carrier" of free fatty acids for secondary use, so as to promote the escape of free fatty acids from the oil, significantly improve the deacidification rate, in addition, when the external steam conveying system fails, the steam recovery mechanism can drive the steam to circulate in a closed loop, cooperate with the heating element in the temperature adjusting cavity, and ensure that the temperature in the deacidification tank is stable, prevent the volatilization of free fatty acids from being interrupted due to sudden temperature change, and ensure the continuity of the deacidification process. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0017] Figure 2 It is a schematic diagram of the internal structure of the deacidification tank of the present application;

[0018] Figure 3 It is a schematic diagram of the connection between the gas outlet pipe and the heat exchange pipe of the present application;

[0019] Figure 4 It is a schematic diagram of the connection between the circulating pipe and the heat exchange pipe of the present application;

[0020] Figure 5 It is a schematic diagram of the internal structure of the recovery tank of the present application;

[0021] Figure 6 It is a schematic diagram of the internal structure of the decoloring tank of the present application;

[0022] Figure 7 It is a schematic diagram of the internal structure of the segmentation seat of the present application;

[0023] Figure 8 Structure diagram of primary filtering mechanism of the application;

[0024] Figure 9 Structure diagram of extrusion assembly of the application;

[0025] Figure 10 Sectional view of filter seat of the application;

[0026] Figure 11 Structure diagram of sealing assembly of the application.

[0027] In the figure: 1, mounting seat; 2, degumming tank; 3, recovery tank; 31, temperature adjusting cavity; 32, circulating pump; 33, air guide pipe; 4, deacidification tank; 41, first motor; 42, air outlet pipe; 43, backflow pipe; 44, circulating pipe; 441, communication seat; 45, air inlet pipe; 46, heat exchange pipe; 461, transmission shaft; 47, annular pipe; 471, exhaust pipe; 5, decolorization tank; 51, second motor; 52, stirring rod; 53, partition seat; 531, first air cylinder; 532, partition plate; 54, extrusion assembly; 541, fixed plate; 5411, second air cylinder; 542, movable plate; 5421, telescopic block; 55, filter seat; 551, filter plate; 552, residue discharge channel; 553, sealing plate; 554, residue discharge pipe; 555, electromagnet; 6, filter; 7, deodorization tank. DETAILED DESCRIPTION

[0028] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the application without creative labor fall within the scope of protection of the application.

[0029] Embodiment: as Figures 1-11As shown, the present application provides a technical scheme, a rapeseed edible blending oil refining device with decolorization function, the refining device includes a mounting seat 1, the mounting seat 1 is provided with a degumming tank 2, a deacidification tank 4, a decoloring tank 5, a filter 6 and a deodorization tank 7, the degumming tank 2 is connected with the deacidification tank 4 through a first conduit and a first liquid pump, the deacidification tank 4 is connected with the decoloring tank 5 through a second conduit and a second liquid pump, the decoloring tank 5 is connected with the filter 6 through a third conduit and a third liquid pump, the filter 6 is connected with the deodorization tank 7 through a fourth conduit and a fourth liquid pump, when working, the first liquid pump, the second liquid pump, the third liquid pump and the fourth liquid pump make the rapeseed oil flow in the degumming tank 2, the deacidification tank 4, the decoloring tank 5, the filter 6 and the deodorization tank 7 in turn, the rapeseed oil is subjected to degumming treatment through the degumming tank 2, the rapeseed oil is subjected to deacidification treatment through the deacidification tank 4, the rapeseed oil is subjected to decoloring treatment through the decoloring tank 5, the rapeseed oil subjected to decoloring treatment is filtered through the filter 6 to remove the decoloring agent in the rapeseed oil, the rapeseed oil is subjected to deodorization treatment through the deodorization tank 7, compared with the current rapeseed oil refining device, the decoloring tank 5 is provided with a stirring rod 52, a segmentation mechanism and a preliminary filtering mechanism inside, the decoloring tank 5 is provided with a second motor 51 above, the second motor 51 is connected with the stirring rod 52, the stirring rod 52 penetrates the segmentation mechanism, the working area of the decoloring tank 5 is divided into two parts through the segmentation mechanism, when the rapeseed oil subjected to deacidification treatment enters the decoloring tank 5, the staff can add the decoloring agent into the decoloring tank 5 twice to make the two working areas in the decoloring tank 5 have appropriate decoloring agent, then the stirring rod 52 is driven to rotate in the decoloring tank 5 through the second motor 51 to ensure that the decoloring agent and the rapeseed oil are fully mixed and contacted, the segmentation mechanism can improve the utilization rate of the decoloring agent in the decoloring tank 5, avoid that part of the decoloring agent cannot be uniformly dispersed in the rapeseed oil due to precipitation, so that the actual effective amount is insufficient, and the decoloring effect is affected, when the rapeseed oil decoloring work is finished, the rapeseed oil and the decoloring agent are preliminarily separated through the preliminary filtering mechanism to reduce the filtering load of the subsequent filter 6, finally, the preliminary filtering mechanism in the present application has an extrusion oil removal function, on the one hand, it prevents the decoloring agent discharged from the decoloring tank 5 from containing too much rapeseed oil, so as to affect the oil recovery rate, on the other hand, it avoids that the decoloring agent in the decoloring tank 5 has too much rapeseed oil oxidized when being discharged, and then waste phenomenon occurs.

[0030] As Figures 2-4As shown, the first motor 41 is arranged above the deacidification tank 4, the deacidification tank 4 is internally provided with the gas outlet pipe 42 and the gas inlet pipe 45 at the upper end and the lower end respectively, the heat exchange pipe 46 is arranged between the gas outlet pipe 42 and the gas inlet pipe 45, the top end of the heat exchange pipe 46 is connected with the first motor 41 through the transmission shaft 461, the gas outlet end of the heat exchange pipe 46 is located in the gas outlet pipe 42, and the gas inlet end of the heat exchange pipe 46 is located in the gas inlet pipe 45. The high-temperature steam can be transported into the gas inlet pipe 45 through the external steam conveying system when the rapeseed oil is deacidified in the deacidification tank 4, and the rapeseed oil in the deacidification tank 4 is heated by the high-temperature steam to volatilize the free fatty acid in the rapeseed oil. Compared with the current rapeseed oil refining device, the first motor 41 is arranged, and when the heat exchange pipe 46 heats and deacidifies the rapeseed oil in the deacidification tank 4, the first motor 41 can drive the heat exchange pipe 46 to rotate in the deacidification tank 4, so as to ensure the uniformity of heating, avoid the temperature inconsistency between the area close to the heat exchange pipe 46 and the area away from the heat exchange pipe 46, and finally, the rapeseed oil needs to be in a vacuum environment in the deacidification, decolorization and deodorization stages (the technical scheme for ensuring that the rapeseed oil is in a vacuum environment is prior art, and details are not repeated here).

[0031] As shown in Figures 2-5 The annular pipe 47 is further arranged at the upper end in the deacidification tank 4, a plurality of groups of exhaust pipes 471 are arranged below the annular pipe 47, the recovery tank 3 is further arranged on the mounting seat 1, the steam recovery mechanism is arranged in the recovery tank 3, one end of the steam recovery mechanism is connected with the gas outlet pipe 42, and the other end of the steam recovery mechanism is connected with the annular pipe 47 through the reflux pipe 43. When the rapeseed oil is deacidified, the external vacuum pump continuously discharges the gas volatilized in the deacidification tank 4 to maintain the vacuum state of the deacidification tank 4, and the high-temperature steam transported into the gas inlet pipe 45 by the external steam conveying system passes through the heat exchange pipe 46, the gas outlet pipe 42, the steam recovery mechanism, the reflux pipe 43 and the annular pipe 47 in sequence, and finally is discharged from the plurality of groups of exhaust pipes 471 into the rapeseed oil in the deacidification tank 4. When the steam enters the rapeseed oil, the free fatty acid is more likely to escape from the oil, so as to effectively improve the deacidification efficiency of the rapeseed oil.

[0032] As shown in Figures 2-5As shown, the steam recovery mechanism includes a temperature regulating chamber 31 and a gas guide pipe 33. The temperature regulating chamber 31 is equipped with a heating element (not shown in the figure). The inlet end of the temperature regulating chamber 31 is connected to the outlet pipe 42. One end of the gas guide pipe 33 is connected to the outlet end of the temperature regulating chamber 31, and the other end of the gas guide pipe 33 is connected to the return pipe 43 through a first valve. When the high-temperature steam supplied to the inlet pipe 45 by the external steam conveying system is reused, the operator can turn on the heating element in the temperature regulating chamber 31 as needed, so that the steam discharged from the outlet pipe 42 can be heated after entering the temperature regulating chamber 31, thereby ensuring that the temperature of the steam that comes into contact with the rapeseed oil is maintained in the optimal range required by the process, and avoiding the decrease in the ability of the steam to carry free fatty acids due to insufficient temperature.

[0033] like Figures 2-5 As shown, the inlet pipe 45 is connected to the external steam delivery system via a second valve (not shown in the figure). A connecting seat 441 is provided at the lower end of the deacidification tank 4. A heat exchange pipe 46 passes through the connecting seat 441, and one end of the heat exchange pipe 46 inside the connecting seat 441 has an air hole. The steam recovery mechanism also includes a circulation pump 32. The guide pipe 33 is a three-way structure. One end of the guide pipe 33 is connected to the inlet end of the circulation pump 32 via a third valve, and the outlet end of the circulation pump 32 is connected to the connecting seat 441 via a circulation pipe 44. A fourth valve is provided on the circulation pipe 44. During normal operation, the first valve on the guide pipe 33 and the second valve on the inlet pipe 45 are open, while the third valve on the guide pipe 33 and the fourth valve on the circulation pipe 44 are closed. At this time, the high-temperature steam delivered by the external steam delivery system to the inlet pipe 45 can smoothly flow through the heat exchange pipe 46 and the outlet... The steam flows along the path of the gas pipe 42, temperature regulating chamber 31, gas guide pipe 33, return pipe 43, and annular pipe 47. When the external steam delivery system fails to operate due to an unexpected malfunction, the operator can immediately close the first valve on the gas guide pipe 33 and the second valve on the inlet pipe 45, and then open the third valve on the gas guide pipe 33 and the fourth valve on the circulation pipe 44. At this time, the circulation pump 32 can drive the steam in the steam recovery mechanism to flow along the path of the circulation pipe 44, connecting seat 441, heat exchange pipe 46, gas outlet pipe 42, temperature regulating chamber 31, gas guide pipe 33, and circulation pump 32. The heating element in the temperature regulating chamber 31 ensures that the temperature of the circulating steam always meets the process requirements. Through the above technical solution, the present invention can maintain the temperature in the deacidification tank 4 when the external steam delivery system fails, and avoid the rapeseed oil in the deacidification tank 4 from being affected by temperature fluctuations.

[0034] like Figures 6-7As shown, the dividing mechanism includes two dividing seats 53, which are respectively set at the upper and lower ends of the decolorizing tank 5. Each dividing seat 53 is a funnel structure, with a through hole in the middle of each dividing seat 53. A mounting groove is provided on both sides of each through hole, and a first cylinder 531 and a dividing plate 532 are installed in each mounting groove. The first cylinder 531 controls the movement of the dividing plate 532, and the two cooperating dividing plates 532 control the opening or closing of the through hole on a certain dividing seat 53. When the deacidified rapeseed oil needs to enter the decolorizing tank 5, the through hole on the lower dividing seat 53 inside the decolorizing tank 5 must be closed first (the through hole on the upper dividing seat 53 inside the decolorizing tank 5 is open). At this time, the two working sections inside the decolorizing tank 5 are connected, and the deacidified rapeseed oil will fall from the top of the decolorizing tank 5 into the two working sections inside the decolorizing tank 5. When the operator needs to add decolorizing oil to the decolorizing tank 5... When adding the decolorizing agent, it can be added in two stages. During the first addition, most of the decolorizing agent will pass through the through hole on the upper dividing seat 53 inside the decolorizing tank 5 under the action of gravity and fall onto the lower dividing seat 53 inside the decolorizing tank 5. Then, before adding the decolorizing agent for the second time, the operator must first close the through hole on the upper dividing seat 53 inside the decolorizing tank 5. At this time, the decolorizing agent added for the second time will fall onto the upper dividing seat 53 inside the decolorizing tank 5 under the action of gravity. After the decolorizing agent is added, the second motor 51 is turned on, and the stirring rod 52 is driven to rotate inside the decolorizing tank 5 to ensure that the decolorizing agent in the two working areas of the decolorizing tank 5 can be fully mixed and contacted with the rapeseed oil. Compared with the current method of directly pouring the decolorizing agent into the decolorizing tank 5, this invention can effectively improve the utilization rate of the decolorizing agent in the decolorizing tank 5 through the dividing mechanism, and avoid some decolorizing agent from being unable to be evenly dispersed in the rapeseed oil due to sedimentation, so as to achieve insufficient actual effective dosage and affect the decolorization effect.

[0035] like Figure 7 As shown, the dividing plate 532 has an arc-shaped groove at one end near the stirring rod 52. The arc-shaped groove fits into the wall of the stirring rod 52. With the above technical solution, when the two cooperating dividing plates 532 are closed, the stirring rod 52 can rotate between the two cooperating dividing plates 532, so as to ensure that the operator only needs to use one stirring rod 52 to stir and mix the decolorizing agent and rapeseed oil in the two working areas of the decolorizing tank 5.

[0036] like Figure 6 , Figures 8-11As shown, the primary filtering mechanism includes an extrusion assembly 54 and a filter seat 55 arranged below the extrusion assembly 54, the filter seat 55 is provided with a filter plate 551, the side end of the filter seat 55 is provided with a residue discharge channel 552, the lower end of the residue discharge channel 552 is provided with a residue discharge pipe 554, and the side end of the residue discharge channel 552 is provided with a sealing assembly for controlling the opening and closing of the residue discharge channel 552. After the oilseed oil decolorization is completed, the staff can open the through holes on the two split seats 53, and then the oilseed oil will fall onto the filter seat 55 and pass through the filter plate 551, the filter plate 551 retains the decolorizing agent in the oilseed oil, and the third liquid pump is used to transport the primary filtered oilseed oil into the filter 6 for secondary filtering. When the oilseed oil primary filtering is completed, the staff can extrude and deoiling the decolorizing agent retained on the filter plate 551 through the extrusion assembly 54, so as to prevent the decolorizing agent discharged from the decolorizing tank 5 from carrying a large amount of oilseed oil. When the decolorizing agent extrusion and deoiling is completed, the residue discharge channel 552 is opened through the sealing assembly to facilitate the staff to clean the decolorizing agent on the filter plate 551 to the outside.

[0037] As shown in the figure, Figures 8-10 The extrusion assembly 54 includes a fixed plate 541 and a movable plate 542, the fixed plate 541 is fixedly installed on the stirring rod 52, the movable plate 542 is arranged below the fixed plate 541, the inside of the fixed plate 541 is provided with a second air cylinder 5411, the working end of the second air cylinder 5411 is connected with the movable plate 542, one end of the movable plate 542 close to the inner wall of the decolorizing tank 5 is provided with a telescopic block 5421, and the telescopic block 5421 and the movable plate 542 are connected through a compression spring. When it is necessary to extrude and deoiling the decolorizing agent retained on the filter plate 551, the staff can open the second air cylinder 5411, drive the movable plate 542 to ascend and descend through the second air cylinder 5411, and when the movable plate 542 descends, the decolorizing agent retained on the filter plate 551 is extruded through the movable plate 542 to remove the oilseed oil carried by the decolorizing agent. When the extrusion and deoiling of the decolorizing agent retained in a certain area of the filter plate 551 is completed, the staff can open the second motor 51, drive the extrusion assembly 54 to rotate above the decolorizing agent which has not been extruded and deoiled through the second motor 51, and then open the second air cylinder 5411 again to repeat the previous extrusion and deoiling step. Through the above technical solution, the present application can effectively prevent the decolorizing agent discharged from the decolorizing tank 5 from carrying a large amount of oilseed oil, ensure the subsequent oil recovery rate, and avoid the decolorizing agent in the decolorizing tank 5 from being oxidized due to exposure to air when being discharged, thereby causing waste.

[0038] As shown in the figure, Figures 8-11As shown, the sealing assembly includes sealing plates 553 and electromagnets 555, two sealing plates 553 are oppositely arranged at the side ends of the residue discharging channel 552, one electromagnet 555 is arranged on the side of each sealing plate 553 away from the residue discharging channel 552, each sealing plate 553 is connected with the filter seat 55 through a plurality of sealing springs, and each sealing plate 553 is made of ferromagnetic material, when the decoloring agent on the filter plate 551 is completely squeezed and deoiled, the two electromagnets 555 can be turned on by the staff, the two sealing plates 553 are driven away from each other by the two electromagnets 555, until the residue discharging channel 552 is completely opened, then the fixed plate 541 is driven to rotate by the second motor 51, the movable plate 542 is driven to descend by the second cylinder 5411, and the decoloring agent on the filter plate 551 is scraped into the residue discharging channel 552 by the movable plate 542, so that the staff can conveniently recycle and process the squeezed and deoiled decoloring agent.

[0039] The working principle of the present application is as follows: during operation, the rapeseed oil flows in the degumming tank 2, the deacidification tank 4, the decoloring tank 5, the filter 6 and the deodorization tank 7 in sequence through the first liquid pump, the second liquid pump, the third liquid pump and the fourth liquid pump, the rapeseed oil is subjected to degumming treatment in the degumming tank 2, the rapeseed oil is subjected to deacidification treatment in the deacidification tank 4, the rapeseed oil is subjected to decoloring treatment in the decoloring tank 5, the decoloring treated rapeseed oil is filtered in the filter 6 to remove the decoloring agent in the rapeseed oil, and the rapeseed oil is subjected to deodorization treatment in the deodorization tank 7, when the rapeseed oil in the deacidification tank 4 is subjected to deacidification treatment, high-temperature steam is continuously delivered into the gas inlet pipe 45 and the heat exchange pipe 46 by the external steam delivery system, and the heat exchange pipe 46 is driven to rotate in the deacidification tank 4 by the first motor 41, so as to ensure the uniformity of heating, when the rapeseed oil in the decoloring tank 5 is subjected to decoloring treatment, the decoloring tank 5 is divided into two working areas by the dividing mechanism, when the deacidification treated rapeseed oil enters the decoloring tank 5, the staff can add decoloring agent into the decoloring tank 5 twice, so that the two working areas in the decoloring tank 5 are both provided with appropriate decoloring agent, then the stirring rod 52 is driven to rotate in the two working areas in the decoloring tank 5 by the second motor 51, so as to ensure that the decoloring agent and the rapeseed oil are fully mixed and contacted, and when the rapeseed oil decoloring work is completed, the rapeseed oil and the decoloring agent are preliminarily separated by the preliminary filtering mechanism, so as to reduce the filtering load of the subsequent filter 6.

[0040] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be modified to the technical solutions recorded in the foregoing embodiments, or equivalent replacement of some technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. Rapeseed edible blend oil refining device with decolorization function, characterized in that: The refining device comprises a mounting seat (1), a degumming tank (2), a deacidification tank (4), a decoloring tank (5), a filter (6) and a deodorization tank (7) are arranged on the mounting seat (1), the degumming tank (2) and the deacidification tank (4) are connected through a first conduit and a first liquid pump, the deacidification tank (4) and the decoloring tank (5) are connected through a second conduit and a second liquid pump, the decoloring tank (5) and the filter (6) are connected through a third conduit and a third liquid pump, the filter (6) and the deodorization tank (7) are connected through a fourth conduit and a fourth liquid pump, the decoloring tank (5) is internally provided with a stirring rod (52), a segmentation mechanism and a primary filtering mechanism, a second motor (51) is arranged above the decoloring tank (5), the second motor (51) is connected with the stirring rod (52), the stirring rod (52) penetrates through the segmentation mechanism, the utilization rate of the decoloring agent in the decoloring tank (5) is improved through the segmentation mechanism, and the primary filtering mechanism has an extrusion oil removal function; A first motor (41) is arranged above the deacidification tank (4), gas outlet pipes (42) and gas inlet pipes (45) are respectively arranged at the upper end and the lower end in the deacidification tank (4), heat exchange pipes (46) are arranged between the gas outlet pipes (42) and the gas inlet pipes (45), the top end of the heat exchange pipes (46) is connected with the first motor (41) through a transmission shaft (461), and the gas inlet pipes (45) are connected with an external steam conveying system; An annular pipe (47) is further arranged at the upper end in the deacidification tank (4), a plurality of groups of exhaust pipes (471) are arranged below the annular pipe (47), a recovery tank (3) is further arranged on the mounting seat (1), a steam recovery mechanism is arranged in the recovery tank (3), one end of the steam recovery mechanism is connected with the gas outlet pipes (42), and the other end of the steam recovery mechanism is connected with the annular pipe (47) through a reflux pipe (43); The steam recovery mechanism comprises a temperature adjusting cavity (31) and a gas guide pipe (33), and a heating element is arranged in the temperature adjusting cavity (31); A communication seat (441) is arranged at the lower end in the deacidification tank (4), the heat exchange pipes (46) penetrate through the communication seat (441), a gas hole is arranged at one end of the heat exchange pipes (46) in the communication seat (441), and the steam recovery mechanism further comprises a circulating pump (32), and the circulating pump (32) is connected with the communication seat (441) through a circulating pipe (44) at an air outlet end; During normal operation, high-temperature steam conveyed into the gas inlet pipes (45) by the external steam conveying system flows along the paths of the heat exchange pipes (46), the gas outlet pipes (42), the temperature adjusting cavity (31), the gas guide pipe (33), the reflux pipe (43) and the annular pipe (47); When an unexpected fault occurs in the external steam conveying system, steam in the steam recovery mechanism is driven by the circulating pump (32) to flow along the paths of the circulating pipe (44), the communication seat (441), the heat exchange pipes (46), the gas outlet pipes (42), the temperature adjusting cavity (31), the gas guide pipe (33) and the circulating pump (32). The segmentation mechanism comprises two segmentation seats (53) arranged at upper and lower ends inside the decoloring tank (5), each segmentation seat (53) is in a funnel structure, a through hole is arranged at a middle position of each segmentation seat (53), and an installation groove is oppositely arranged at both sides of each through hole; and a first air cylinder (531) and a segmentation plate (532) are arranged in each installation groove. The primary filtering mechanism comprises an extrusion assembly (54) and a filtering seat (55), the filtering seat (55) is arranged below the extrusion assembly (54), a filter plate (551) is arranged on the filtering seat (55), a residue discharging channel (552) is arranged at a side end of the filtering seat (55), a residue discharging pipe (554) is arranged at a lower end of the residue discharging channel (552), and a sealing assembly is arranged at a side end of the residue discharging channel (552). The extrusion assembly (54) comprises a fixed plate (541) and a movable plate (542), the fixed plate (541) is fixedly installed on the stirring rod (52), the movable plate (542) is arranged below the fixed plate (541), a second air cylinder (5411) is arranged in the fixed plate (541), a working end of the second air cylinder (5411) is connected with the movable plate (542), and an elastic block (5421) is arranged at an end of the movable plate (542) close to the inner wall of the decoloring tank (5).

2. The rapeseed edible blend oil refining device with decolorization function according to claim 1, characterized in that: The gas outlet end of the heat exchange pipe (46) is located in the gas outlet pipe (42), and the gas inlet end of the heat exchange pipe (46) is located in the gas inlet pipe (45).

3. The rapeseed edible blend oil refining device with decolorization function according to claim 1, characterized in that: The gas inlet end of the temperature adjusting cavity (31) is connected with the gas outlet pipe (42), one end of the gas guide pipe (33) is connected with the gas outlet end of the temperature adjusting cavity (31), and the other end of the gas guide pipe (33) is connected with the backflow pipe (43) through a first valve.

4. The rapeseed edible blend oil refining device with decolorization function according to claim 1, characterized in that: The gas inlet pipe (45) is connected with the external steam conveying system through a second valve, the gas guide pipe (33) is in a three-way structure, one end of the gas guide pipe (33) is connected with the gas inlet end of the circulating pump (32) through a third valve, and the circulating pipe (44) is provided with a fourth valve.

5. The rapeseed edible blend oil refining device with decolorization function according to claim 1, characterized in that: An arc-shaped groove is arranged at an end of the segmentation plate (532) close to the stirring rod (52), and the arc-shaped groove is attached to the wall surface of the stirring rod (52).

6. The rapeseed edible blend oil refining device with decolorization function according to claim 1, characterized in that: The sealing assembly comprises sealing plates (553) and electromagnets (555), two sealing plates (553) are oppositely arranged at the side end of the residue discharging channel (552), one electromagnet (555) is arranged at a side of each sealing plate (553) away from the residue discharging channel (552), each sealing plate (553) is connected with the filtering seat (55) through a plurality of sealing springs, and each sealing plate (553) is made of ferromagnetic material.

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