Rapeseed oil leaching processing wet meal desolventizing device

Abstract

The invention provides a rapeseed oil leaching processing wet meal desolventizing device, and relates to the technical field of wet meal desolventizing, the rapeseed oil leaching processing wet meal desolventizing device comprises an evapo-separated machine body, the top of the evapo-separated machine body is provided with a feed inlet and a discharge outlet, and the bottom of the evapo-separated machine body is provided with an air inlet; a first pre-desolventizing layer disc, a second pre-desolventizing layer disc, a third pre-desolventizing layer disc, a fourth pre-desolventizing layer disc, a first breathable layer disc, a second breathable layer disc, a direct desolventizing layer disc, a drying layer disc, a first hot air layer disc, a second hot air layer disc and a cold air layer disc are sequentially arranged in the desolventizing machine body from top to bottom. Through cooperation of a plurality of rotating fan blades, a first filter plate, a second filter plate, an L-shaped scraping plate and a straight scraping plate, when the intensity and the direction of air flow are adjusted through swinging of the rotating fan blades in an air outlet pipe, vertical swinging of a spraying head can be achieved at the same time, and therefore close meal dust is connected through a water mist liquid bridge; the adhesive force and the self weight among the meal particles are increased, and the content of meal dust entering the air outlet pipe is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wet meal desolventizing, in particular to a rapeseed oil leaching processing wet meal desolventizing device. BACKGROUND

[0002] In the rapeseed oil leaching process, after the rapeseed material embryo or pre-pressed cake is soaked with an organic solvent (such as n-hexane), oil is extracted, and the remaining solid material is wet meal. The wet meal usually contains 25%-35% of solvent, which exists in two forms of free state and combined state. The wet meal desolventizing device is a key equipment in a vegetable oil leaching oil mill, mainly used for removing the solvent in the wet meal to ensure the quality and safety of the meal. The essence of wet meal desolventizing is to use heat energy to evaporate the solvent and separate it from the meal. The wet meal desolventizing device is mainly divided into a pre-desolventizing layer, a desolventizing layer, a direct steam layer and a baking layer. An air outlet pipe is arranged above the hot air layer in the baking layer. The air outlet pipe is arranged to timely and smoothly discharge the hot air that has completed heat exchange with the wet meal and becomes humid and rich in meal dust from the system.

[0003] In the existing wet meal desolventizing device, when the hot air containing moisture is discharged to the air outlet pipe, a large amount of fine meal dust is easily carried. The moving meal dust can wear the pipeline and the fan, and the meal dust is easily accumulated in the pipeline and the subsequent equipment, causing blockage. SUMMARY

[0004] TECHNICAL PROBLEM

[0005] In view of the deficiencies of the prior art, the present application provides a rapeseed oil leaching processing wet meal desolventizing device, which solves the problem that in the existing wet meal desolventizing device, when the hot air containing moisture is discharged to the air outlet pipe, a large amount of fine meal dust is easily carried.

[0006] TECHNICAL SCHEME

[0007] To achieve the above purpose, the present application is implemented by the following technical scheme: a rapeseed oil leaching processing wet meal desolventizing device, comprising a desolventizing machine body, a feed inlet and an air outlet are arranged at the top of the desolventizing machine body, an air inlet is arranged at the bottom of the desolventizing machine body, a first pre-desolventizing layer disc, a second pre-desolventizing layer disc, a third pre-desolventizing layer disc, a fourth pre-desolventizing layer disc, a first air permeable layer disc, a second air permeable layer disc, a direct desolventizing layer disc, a drying layer disc, a first hot air layer disc, a second hot air layer disc and a cold air layer disc are arranged in the desolventizing machine body from top to bottom, a rotating shaft is arranged at the center of each layer disc in the desolventizing machine body, and an upper scraping blade and a lower scraping blade are arranged above each layer disc on the side of the rotating shaft.

[0008] The outflow pipe inner wall is fixedly installed with a limiting frame, the limiting frame is slidably connected with a horizontal sliding block, the horizontal sliding block is fixedly connected with a horizontal rack on one side, the horizontal rack is meshingly connected with a plurality of rotating gears on one side, the rotating gears are fixedly connected with rotating shafts at the top center, the rotating shafts are rotatably connected with the outflow pipe inner wall, and rotating blades are arranged above and below the rotating gears on the rotating shafts.

[0009] The outflow pipe inner wall is fixedly installed with a limiting frame, the limiting frame is slidably connected with a horizontal sliding block, the horizontal sliding block is fixedly connected with a horizontal rack on one side, the horizontal rack is meshingly connected with a plurality of rotating gears on one side, the rotating gears are fixedly connected with rotating shafts at the top center, the rotating shafts are rotatably connected with the outflow pipe inner wall, and rotating blades are arranged above and below the rotating gears on the rotating shafts.

[0010] Preferably, a first motor is fixedly installed on the top of the outflow pipe, the output end of the first motor penetrates through the outflow pipe, and the output end of the first motor is fixedly connected with a first bevel gear inside the outflow pipe.

[0011] The end of the central shaft away from the steam and dirt removal machine is fixedly connected with a second bevel gear meshingly connected with the first bevel gear.

[0012] Preferably, the central shaft is fixedly connected with an L-shaped scraper on the side, and the L-shaped scraper is respectively attached to the inner wall of the outflow pipe and the inner wall of the first filter plate.

[0013] The central shaft is fixedly connected with a straight scraper on the side, and the straight scraper is attached to the inner wall of the second filter plate.

[0014] Preferably, an installation plate is fixedly installed between the drying layer disc and the outflow pipe on the inner wall of the steam and dirt removal machine, a swing gear is rotatably connected with one side of the installation plate, a swing plate is fixedly connected with the side of the swing gear, a spray head is fixedly installed at one end of the swing plate, and the spray head is provided with a water source through a water pipe.

[0015] Preferably, a traction gear is rotatably connected with one side of the installation plate, a first traction plate is fixedly connected with the center of one side of the traction gear, a second traction plate is rotatably connected with one end of the first traction plate away from the traction gear, a reciprocating rack meshingly connected with the swing gear is rotatably connected with one end of the second traction plate away from the first traction plate, and the reciprocating rack is horizontally slidably connected with one side of the installation plate.

[0016] Preferably, a lifting rod is arranged on the inner wall of the steam and dirt removal machine, the lifting rod slides up and down along the inner wall of the steam and dirt removal machine, a vertical rack is fixedly connected with the top end of the lifting rod, and the vertical rack is meshingly connected with the traction gear.

[0017] Preferably, a limiting plate is fixedly installed on the air outlet pipe close to the inner side of the steam stripping machine body, a traction rack is slidably connected to the limiting plate, and an inclined plate is fixedly connected to the traction rack.

[0018] The traction rack is engaged with the rotating gear, and the traction rack is located on one side of the rotating fan blades.

[0019] Preferably, a servo motor is arranged below the steam stripping machine body on the outer side of the steam stripping machine body, and the output end of the servo motor is fixedly connected to the bottom end of the rotating shaft.

[0020] Beneficial effects

[0021] The present application provides a rapeseed oil extraction processing wet meal desolventizing device, which has the following beneficial effects:

[0022] In the present application, the cooperation between the rotating fan blades, the first filter plate, the second filter plate, the L-shaped scraper and the straight scraper reduces the content of meal dust entering the air outlet pipe, reduces the wear of the meal dust on the pipeline and the fan, and avoids the accumulation of meal dust in the pipeline and subsequent equipment.

[0023] In the present application, the arrangement of the rotating fan blades that swing back and forth increases the intensity of the hot air flow entering the air outlet pipe, the hot air flow changes constantly, the hot air flowability in the air outlet pipe is improved, and the hot air transfer efficiency of the air outlet pipe is improved.

[0024] In the present application, the use of the first filter plate and the second filter plate reduces the carrying of meal dust by the hot air flowing in the air outlet pipe.

[0025] In the present application, when the air flow intensity and direction are adjusted by swinging the rotating fan blades in the air outlet pipe, the spray head fixedly installed on the swing plate on the circumferential surface of the swing gear can also swing around the swing gear as a center without additional power, which realizes water mist spraying on the hot air at the inlet of the air outlet pipe, the up-and-down swinging spray head expands the spraying range, achieves uniform water mist spraying, connects the meal dust in the vicinity through the water mist liquid bridge, increases the adhesion between the meal particles and their own weight, makes the meal more difficult to be blown away by the hot air, and reduces the content of meal dust in the hot air entering the air outlet pipe. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a sectional view of the rapeseed oil extraction processing wet meal desolventizing device of the present application;

[0027] Figure 2 It is Figure 1 It is an enlarged schematic view of A;

[0028] Figure 3 It isFigure 2 Enlarged view of middle B;

[0029] Figure 4 For Figure 2 Enlarged view of middle C;

[0030] Figure 5 For structure diagram of air outlet pipe;

[0031] Figure 6 For Figure 5 Enlarged view of middle D;

[0032] Figure 7 For sectional view of air outlet pipe;

[0033] Figure 8 For Figure 7 Enlarged view of middle E.

[0034] 1, evaporative body; 2, air outlet pipe; 3, mounting plate; 4, servo motor; 101, feed inlet; 102, air outlet; 103, air inlet; 104, first pre-removal layer disc; 105, second pre-removal layer disc; 106, third pre-removal layer disc; 107, fourth pre-removal layer disc; 108, first air permeable layer disc; 109, second air permeable layer disc; 110, direct removal layer disc; 111, drying layer disc; 112, first hot air layer disc; 113, second hot air layer disc; 114, cold air layer disc; 115, rotating shaft; 1151, upper scraping blade; 1152, lower scraping blade; 201, first filter plate; 2011, dust outlet; 202, second filter plate; 203, central shaft; 2031, rotating plate; 2032, traction shaft; 2033, second bevel gear; 2034, L-shaped scraper; 2035, straight scraper; 204, limiting frame; 205, horizontal sliding block; 2051, horizontal rack; 2052, traction frame; 206, rotating gear; 2061, rotating shaft; 2062, rotating fan blade; 207, first motor; 2071, first bevel gear; 208, limiting plate; 2081, traction rack; 2082, inclined plate; 31, oscillating gear; 311, oscillating plate; 312, spray head; 32, traction gear; 321, first traction plate; 322, second traction plate; 323, reciprocating rack; 33, lifting rod; 331, vertical rack. DETAILED DESCRIPTION

[0035] The technical solutions in the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described is only a part of the present application, not the whole. Based on the present application, all other innovations obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0036] Example one:

[0037] As Figures 1-8 The present application provides a rapeseed oil extraction processing wet meal desolventizing device, which comprises a desolventizing body 1, the top of the desolventizing body 1 is provided with a feeding port 101 and an air outlet 102, the bottom of the desolventizing body 1 is provided with an air inlet 103, the inside of the desolventizing body 1 is sequentially provided from top to bottom with a first pre-desolventizing layer disc 104, a second pre-desolventizing layer disc 105, a third pre-desolventizing layer disc 106, a fourth pre-desolventizing layer disc 107, a first air-permeable layer disc 108, a second air-permeable layer disc 109, a direct desolventizing layer disc 110, a drying layer disc 111, a first hot air layer disc 112, a second hot air layer disc 113 and a cold air layer disc 114, the center of each layer disc in the desolventizing body 1 is provided with a rotating shaft 115, the upper side of the rotating shaft 115 is provided with an upper scraping blade 1151 and a lower scraping blade 1152 above each layer disc; the inner wall of the desolventizing body 1 is provided between the drying layer disc 111 and the first hot air layer disc 112 with an air outlet pipe 2, the inner wall of the air outlet pipe 2 is fixedly provided with a first filter plate 201 and a second filter plate 202, the first filter plate 201 and the second filter plate 202 are rotationally connected with a center shaft 203, the end of the center shaft 203 is fixedly connected with a rotating plate 2031 close to one side of the desolventizing body 1, one end of the rotating plate 2031 is fixedly connected with a traction shaft 2032; the inner wall of the air outlet pipe 2 is fixedly provided with a limiting frame 204, the limiting frame 204 is slidingly connected with a horizontal sliding block 205, one side of the horizontal sliding block 205 is fixedly connected with a horizontal rack 2051, the side of the horizontal rack 2051 is meshingly connected with a plurality of rotating gears 206, the top of the rotating gears 206 is fixedly connected with a rotating shaft 2061, the rotating shaft 2061 is rotationally connected with the inner wall of the air outlet pipe 2, the rotating shaft 2061 is provided with a rotating fan blade 2062 above and below the rotating gears, the other side of the horizontal sliding block 205 is fixedly connected with a traction frame 2052 which is slidingly connected with the traction shaft 2032.

[0038] Specifically, the outer top of the air outlet pipe 2 is fixedly provided with a first motor 207, the output end of the first motor 207 penetrates through the air outlet pipe 2, and the output end of the first motor 207 is fixedly connected with a first bevel gear 2071 in the air outlet pipe 2; the end of the center shaft 203 away from the desolventizing body 1 is fixedly connected with a second bevel gear 2033 which is meshingly connected with the first bevel gear 2071.

[0039] Further, the center shaft 203 is fixedly connected with an L-shaped scraper 2034, the L-shaped scraper 2034 is respectively attached to the inner wall of the air outlet pipe 2 and the inner wall of the first filter plate 201, and the first filter plate 201 is provided with a dust outlet hole 2011 below; the center shaft 203 is fixedly connected with a straight scraper 2035, and the straight scraper 2035 is attached to the inner wall of the second filter plate 202.

[0040] The operation process of the embodiment is as follows: the device is divided into a pre-desolventizing layer, a desolventizing layer, a direct steam layer, a baking layer, the first pre-desolventizing layer disc 104, the second pre-desolventizing layer disc 105, the third pre-desolventizing layer disc 106 and the fourth pre-desolventizing layer disc 107 belong to the pre-desolventizing layer, the first air-permeable layer disc 108 and the second air-permeable layer disc 109 belong to the desolventizing layer, the direct desolventizing layer disc 110 and the drying layer disc 111 belong to the direct steam layer, the first hot air layer disc 112, the second hot air layer disc 113 and the cold air layer disc 114 belong to the baking layer, the material is added through the feeding port 101, the hot air is input into the steam desolventizing machine body 1 through the air inlet 103, the hot air at the top of the steam desolventizing machine body 1 is discharged through the air outlet 102, the rotating shaft 115 drives the upper scraping blade 1151 and the lower scraping blade 1152 on each layer disc to scrape off the layer disc; when the steam desolventizing machine body 1 is started, the first motor 207 fixedly installed at the top of the outlet pipe 2 is started, so that the first bevel gear 2071 fixedly connected to the output end of the first motor 207 rotates, when the first bevel gear 2071 rotates, the second bevel gear 2033 located below the first bevel gear 2071 and meshing with the side surface of the first bevel gear 2071 rotates, when the second bevel gear 2033 rotates, the central shaft 203 fixedly connected to the side surface of the second bevel gear 2033 rotates between the first filter plate 201 and the second filter plate 202, the rotating plate 2031 fixedly connected to one end of the central shaft 203 close to the steam desolventizing machine body 1 rotates around the central shaft 203, when the rotating plate 2031 rotates, the traction shaft 2032 fixedly connected to the end of the rotating plate 2031 away from the central shaft 203 rotates around the central shaft 203, the rotation of the traction shaft 2032 drives the traction frame 2052 slidingly fitted on the side surface of the traction shaft 2032 to slide horizontally along the limiting frame 204, thereby driving the horizontal rack 2051 fixedly connected to one side of the horizontal sliding block 205 to move reciprocatingly in the horizontal direction along the limiting frame 204, wherein the horizontal sliding block 205 slidingly fitted in the limiting frame 204 limits the horizontal rack 2051 and the traction frame 2052 in the vertical direction, when the horizontal rack 2051 moves reciprocatingly in the horizontal direction, the plurality of rotating gears 206 meshing with one side of the horizontal rack 2051 rotates reciprocatingly, that is, the rotating blades 2062 fixedly connected to the side surface of the plurality of rotating shafts 2061 reciprocatingly swing; during use of the outlet pipe 2, the hot air containing moisture in the steam desolventizing machine body 1 carries the bran dust to the outlet pipe 2, the plurality of reciprocatingly swinging rotating blades 2062 are arranged to increase the air flow intensity of the hot air entering the outlet pipe 2, the hot air flow changes continuously, the hot air flowability in the outlet pipe 2 is improved, and the hot air transmission efficiency of the outlet pipe is improved.By using the first filter plate 201 and the second filter plate 202, the carrying of the hot air flowing in the air outlet pipe 2 to the bran dust is reduced, and at the same time, by arranging a plurality of reciprocating rotating blades 2062 on one side of the first filter plate 201 and the second filter plate 202, the hot air entering the air outlet pipe 2 is continuously brought to both sides by the plurality of reciprocating rotating blades 2062, thereby increasing the hot air flow intensity and reducing the accumulation of bran dust on one side of the first filter plate 201 and the second filter plate 202; during the rotation of the central shaft 203, the L-shaped scraper 2034 and the straight scraper 2035 fixedly connected to the circumferential surface of the central shaft 203 rotate on one side of the first filter plate 201 and the second filter plate 202, respectively, the L-shaped scraper 2034 can scrape the bran dust on one side of the first filter plate 201 and the inner wall of the air outlet pipe 2, and the straight scraper 2035 can scrape the bran dust on one side of the second filter plate 202, and the dust outlet hole 2011 arranged below the first filter plate 201 can allow the bran dust accumulated on one side of the second filter plate 202 to return to the steam and desorption machine body 1 along the dust outlet hole 2011; through the cooperation between the plurality of rotating blades 2062, the first filter plate 201, the second filter plate 202, the L-shaped scraper 2034 and the straight scraper 2035, the content of the bran dust entering the air outlet pipe 2 is reduced, the wear of the pipeline and the fan caused by the bran dust moving with the wind is reduced, and the accumulation of the bran dust in the pipeline and the subsequent equipment is avoided.

[0041] Embodiment two:

[0042] In this embodiment, based on the embodiment one, the installation plate 3 is fixedly installed on the inner wall of the steam and desorption machine body 1 between the drying layer disc 111 and the air outlet pipe 2, one side of the installation plate 3 is rotatably connected with the swing gear 31, the swing gear 31 is fixedly connected with the swing plate 311 on the circumferential surface, one end of the swing plate 311 is fixedly installed with the spray head 312, and the spray head 312 is provided with a water source through the water pipe. One side of the installation plate 3 is rotatably connected with the traction gear 32, the first traction plate 321 is fixedly connected to the center of one side of the traction gear 32, the second traction plate 322 is rotatably connected to the end of the first traction plate 321 away from the traction gear 32, the reciprocating rack 323 meshing with the swing gear 31 is rotatably connected to the end of the second traction plate 322 away from the first traction plate 321, and the reciprocating rack 323 is horizontally slidably connected to one side of the installation plate 3.

[0043] Specifically, the inner wall of the evaporative body 1 is provided with a lifting rod 33, the lifting rod 33 slides up and down along the inner wall of the evaporative body 1, the top end of the lifting rod 33 is fixedly connected with a vertical rack 331, the vertical rack 331 is in meshing cooperation with the traction gear 32. The air outlet pipe 2 is fixedly installed with a limiting plate 208 on one side close to the inside of the evaporative body 1, the limiting plate 208 is in sliding cooperation with a traction rack 2081, the traction rack 2081 is fixedly connected with an inclined plate 2082, the bottom of the lifting rod 33 is always in contact with the top of the inclined plate 2082; the traction rack 2081 is in meshing cooperation with the rotating gear 206, and the traction rack 2081 is located on one side of a plurality of rotating blades 2062.

[0044] Further, the outer part of the evaporative body 1 is provided with a servo motor 4 below the evaporative body 1, and the output end of the servo motor 4 is fixedly connected with the bottom end of the rotating shaft 115.

[0045] The operation process of the embodiment is as follows: when the steam extraction machine body 1 of the present application is started and the air outlet pipe 2 is running, the running of the air outlet pipe 2 can drive the spray head 312 to continuously swing for spraying. Specifically, when the air outlet pipe 2 is running, the plurality of rotating blades 2062 in the air outlet pipe 2 swing, and the traction rack 2081 is engaged with the rotating gear 206 on one of the rotating blades 2062. When the rotating gear 206 reciprocating rotates, the traction rack 2081 engaged with the rotating gear 206 reciprocating slides along the limiting plate 208. When the traction rack 2081 reciprocating slides horizontally, the oblique plate 2082 fixedly connected to the traction rack 2081 reciprocating moves horizontally. Since the lifting rod 33 is always in contact with the top of the oblique plate 2082 due to the action of gravity, the mass of the lifting rod 33 is set to make the bottom of the lifting rod 33 in contact with the top of the oblique plate 2082 and the lifting rod 33 cannot be blown by the air flow in the device. When the oblique plate 202 reciprocating moves horizontally, the lifting rod 33 and the vertical rack 331 fixedly connected to the top of the lifting rod 33 reciprocating move up and down. When the vertical rack 331 reciprocating moves up and down, the traction gear 32 engaged with the vertical rack 331 reciprocating rotates on one side of the mounting plate 3. When the traction gear 32 rotates, the first traction plate 321 fixedly connected to the center of one side of the traction gear 32 rotates around the traction gear 32. When the first traction plate 321 rotates, the second traction plate 322 rotatably connected to the other end of the first traction plate 321 rotates, thereby driving the reciprocating rack 323 rotatably connected to the other end of the second traction plate 322 to reciprocating move horizontally on one side of the mounting plate 3. When the reciprocating rack 323 reciprocating moves horizontally, the swing gear 31 engaged with the reciprocating rack 323 on one side of the mounting plate 3 swings. The above can realize the swing movement of the spray head 312 fixedly installed on the swing plate 311 on the side of the swing gear 31 around the swing gear 31 when the air flow intensity and direction are adjusted by the swing of the plurality of rotating blades 2062 in the air outlet pipe 2, without the need for additional power. The hot air at the inlet of the air outlet pipe 2 is sprayed with water mist, the spray head 312 swings up and down to expand the spraying range, and the water mist is evenly sprayed to form a liquid bridge on the dust, so that the dust is connected by the water mist liquid bridge, the adhesion between the particles and the weight of the particles are increased, the dust is more difficult to be blown away by the hot air, and the dust content in the hot air entering the air outlet pipe 2 is reduced.

[0046] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for desolventizing wet rapeseed oil extraction meal, characterized in that: The device includes a desiccant body (1), which has a feed inlet (101) and an air outlet (102) at the top and an air inlet (103) at the bottom. Inside the desiccant body (1), from top to bottom, there are a first pre-delamination plate (104), a second pre-delamination plate (105), a third pre-delamination plate (106), a fourth pre-delamination plate (107), a first permeable plate (108), a second permeable plate (109), a direct delamination plate (110), a drying plate (111), a first hot air plate (112), a second hot air plate (113), and a cold air plate (114). Inside the desiccant body (1), there is a rotating shaft (115) at the center of rotation of each plate. The rotating shaft (115) has an upper scraper blade (1151) and a lower scraper blade (1152) on its circumferential side above each plate. An air outlet pipe (2) is provided on the inner wall of the evaporator body (1) between the drying tray (111) and the first hot air tray (112). A first filter plate (201) and a second filter plate (202) are fixedly installed on the inner wall of the air outlet pipe (2). A central shaft (203) is rotatably connected between the first filter plate (201) and the second filter plate (202). A rotating plate (2031) is fixedly connected to the end of the central shaft (203) near the side of the evaporator body (1). A traction shaft (2032) is fixedly connected to one end of the rotating plate (2031). A limiting frame (204) is fixedly installed on the inner wall of the air outlet pipe (2). A horizontal slider (205) is slidably fitted inside the limiting frame (204). A horizontal rack (2051) is fixedly connected to one side of the horizontal slider (205). A plurality of rotating gears (206) are meshed with one side of the horizontal rack (2051). A rotating shaft (2061) is fixedly connected to the top center of each of the plurality of rotating gears (206). The rotating shaft (2061) is rotatably fitted on the inner wall of the air outlet pipe (2). Rotating fan blades (2062) are provided on the circumferential sides of the plurality of rotating shafts (2061) above and below the rotating gears. A traction frame (2052) that is slidably fitted with a traction shaft (2032) is fixedly connected to the other side of the horizontal slider (205).

2. The rapeseed oil extraction and processing wet meal desolventizing device according to claim 1, characterized in that: A first motor (207) is fixedly installed on the top of the air outlet pipe (2). The output end of the first motor (207) passes through the air outlet pipe (2). The output end of the first motor (207) is located inside the air outlet pipe (2) and is fixedly connected to a first bevel gear (2071). The central shaft (203) is fixedly connected to a second bevel tooth (2033) that meshes with the first bevel tooth (2071) at one end away from the desiccant body (1).

3. The rapeseed oil extraction and processing wet meal desolventizing device according to claim 2, characterized in that: An L-shaped scraper (2034) is fixedly connected to the circumferential side of the central shaft (203). The L-shaped scraper (2034) is respectively attached to the inner wall of the air outlet pipe (2) and the inner wall of the first filter plate (201). A dust outlet hole (2011) is opened below the first filter plate (201). A straight scraper (2035) is fixedly connected to the circumferential side of the central shaft (203), and the straight scraper (2035) and the inner wall of the second filter plate (202) are in contact with each other.

4. The rapeseed oil extraction and processing wet meal desolventizing device according to claim 3, characterized in that: An installation plate (3) is fixedly installed on the inner wall of the evaporator body (1) between the drying tray (111) and the air outlet pipe (2). A swing gear (31) is rotatably fitted on one side of the installation plate (3). A swing plate (311) is fixedly connected to the circumferential side of the swing gear (31). A spray head (312) is fixedly installed at one end of the swing plate (311). The spray head (312) is supplied with water through a water pipe.

5. The rapeseed oil extraction and processing wet meal desolventizing device according to claim 4, characterized in that: The mounting plate (3) has a traction gear (32) rotatably fitted on one side. A first traction plate (321) is fixedly connected to the center of one side of the traction gear (32). A second traction plate (322) is rotatably fitted at the end of the first traction plate (321) away from the traction gear (32). A reciprocating rack (323) that meshes with the swing gear (31) is rotatably fitted at the end of the second traction plate (322) away from the first traction plate (321). The reciprocating rack (323) is horizontally slidably fitted on one side of the mounting plate (3).

6. The rapeseed oil extraction and processing wet meal desolventizing device according to claim 5, characterized in that: The inner wall of the evaporator body (1) is provided with a lifting rod (33), which slides up and down along the inner wall of the evaporator body (1). A vertical rack (331) is fixedly connected to the top of the lifting rod (33), and the vertical rack (331) meshes with the traction gear (32).

7. The rapeseed oil extraction and processing wet meal desolventizing device according to claim 6, characterized in that: A limiting plate (208) is fixedly installed on the side of the air outlet pipe (2) near the inside of the evaporator body (1). A traction rack (2081) is slidably fitted on the limiting plate (208). An inclined plate (2082) is fixedly connected to the traction rack (2081). The bottom of the lifting rod (33) is always in contact with the top of the inclined plate (2082). The traction rack (2081) and the rotating gear (206) mesh with each other, and the traction rack (2081) is located on one side of several rotating fan blades (2062).

8. The rapeseed oil extraction and processing wet meal desolventizing device according to claim 7, characterized in that: A servo motor (4) is installed outside the evaporator body (1) and below it. The output end of the servo motor (4) is fixedly connected to the bottom end of the rotating shaft (115).

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