Energy-saving DTDC equipment and grease treatment process

Abstract

The present invention relates to the technical field of vegetable oil production, and proposes an energy-saving DTDC equipment and oil processing process, including a degassing machine body, a degassing layer, a rotating shaft and a stirring blade, wherein the degassing machine body is provided with a feed port and an air inlet; the degassing layer includes a tray and a control panel, wherein the tray is fixedly arranged in the degassing machine body, and a plurality of rows of air holes and a feed port are provided therein, wherein the feed port and the air inlet are respectively arranged on the upper and lower sides of the tray, and the two are connected through the air holes and the feed port; the control panel is slidably arranged on the bottom side of the tray, and the plurality of rows of air holes are alternately blocked; the stirring blade is fixedly arranged on the rotating shaft. The present invention arranges a control panel, and utilizes the alternate blocking of air holes to allow the wet meal at different positions on the tray to alternately agglomerate and split, thereby reducing the overall agglomeration phenomenon of the wet meal and ensuring the desolventizing efficiency of the wet meal.

Description

Technical Field

[0001] The invention relates to the technical field of vegetable oil production, and in particular to energy-saving DTDC equipment and an oil treatment process. Background Art

[0002] DTDC equipment, namely, desolventizing machine, is an important part of the extraction oil production process. It integrates desolventizing, baking, drying and cooling processes. It can not only quickly remove the solvent from the wet meal, but also has a good energy-saving effect.

[0003] The utility model with the announcement number CN219449637U discloses a bottom plate of a complete degassing section of a degassing machine and a degassing machine, including a ventilation part arranged on the bottom plate, each of which is provided with at least 8 ventilation holes, and the aperture of each ventilation hole is greater than 20 mm. By increasing the number of ventilation holes on the bottom plate and enlarging the inner diameter of the ventilation holes, the ventilation volume is increased, the utilization rate of direct steam is improved, the gas phase temperature of the degassing machine is reduced, the steam usage is saved, and the degassing effect is improved, and the quality of edible soybean meal is improved.

[0004] In the above technical solution, in order to allow steam to pass through the bottom plate and contact the wet meal, a plurality of air holes are arranged in the bottom plate. However, the plurality of air holes are arranged at intervals, and the wet meal located at the air holes is in contact with the steam for a long time, while the wet meal located between the air holes cannot be in contact with the steam, resulting in the wet meal at the air holes being prone to agglomeration, which affects the contact effect between the wet meal and the steam and reduces the desolventizing efficiency of the wet meal. Summary of the invention

[0005] In view of this, the present invention proposes an energy-saving DTDC equipment and oil treatment process, which can reduce the overall agglomeration phenomenon of wet meal and ensure the desolventizing efficiency of wet meal.

[0006] The technical solution of the present invention is implemented as follows: On the one hand, the present invention provides an energy-saving DTDC device, including a degassing body, a degassing layer, a rotating shaft and a stirring blade, wherein:

[0007] The degassing machine body is provided with a feed inlet and an air inlet, and a top side thereof is provided with an air outlet;

[0008] The degassing layer comprises a tray and a control panel, wherein the tray is fixedly arranged in the degassing body, and has multiple rows of air holes and a feed opening therein, wherein the feed opening and the air inlet are respectively located at the upper and lower sides of the tray, and the two are connected through the air holes and the feed opening; the control panel is slidably arranged at the bottom side of the tray, and alternately blocks the multiple rows of air holes;

[0009] The rotating shaft is rotatably disposed in the degassing machine body;

[0010] The stirring blade is fixedly arranged on the rotating shaft and is in contact with and slidably connected to the top side of the tray.

[0011] On the basis of the above technical solution, preferably, the control board is provided with multiple columns of through holes, the multiple columns of through holes and the multiple columns of air holes are equidistantly arranged along the sliding direction of the control board, and the multiple through holes in the same column of through holes and the multiple air holes in the same column of air holes are equidistantly arranged;

[0012] The spacing between two adjacent columns of the pores, the spacing between two adjacent pores in the same column of the pores, and the spacing between two adjacent through holes in the same column of the through holes are equal and are half of the spacing between two adjacent columns of the through holes.

[0013] More preferably, the spacing between two adjacent rows of pores is twice the diameter of the pores;

[0014] The inner diameter of the through hole is larger than the inner diameter of the pore and smaller than twice the inner diameter of the pore.

[0015] On the basis of the above technical solution, preferably, it further comprises a driving member, the rotating shaft passes through the tray and is sealed and rotatably connected thereto, a driving hole is opened in the control panel, and the rotating shaft passes through the driving hole;

[0016] The driving member is fixedly arranged on the rotating shaft, and its end away from the rotating shaft is slidably connected to the inner wall of the driving hole, and the length from the end away from the rotating shaft to the end close to the rotating shaft is greater than the radius difference between the driving hole and the rotating shaft.

[0017] More preferably, the driving member includes a fixing seat, a socket and a roller, wherein:

[0018] The fixing seat is fixedly arranged on the rotating shaft, and a slot is provided on a side of the fixing seat away from the rotating shaft;

[0019] One end of the socket is slidably disposed in the slot, and the socket abuts against a side of the fixing seat away from the rotating shaft;

[0020] The roller is rotatably arranged at one end of the socket away from the fixing seat and is rollingly connected with the inner wall of the driving hole.

[0021] More preferably, the length from the side of the roller away from the rotating shaft to the side of the rotating shaft away from the roller is equal to the inner diameter of the driving hole;

[0022] The length of the fixing seat from one end of the rotating shaft to the center line of the rotating shaft is equal to the radius of the driving hole.

[0023] On the basis of the above technical solution, preferably, the stirring blade comprises an upper blade and a lower blade, the upper blade and the lower blade are both fixedly arranged on the rotating shaft, and the upper blade is arranged above the tray and spaced therefrom, and the lower blade is abutted against and slidably arranged against the top side of the tray;

[0024] The ends of the upper blade and the lower blade away from the rotating shaft are both located behind the end close to the rotating shaft along the rotation direction of the rotating shaft, and the bottom end of the upper blade is located behind the top end of the upper blade along the rotation direction of the rotating shaft, and the bottom end of the lower blade is located in front of the top end of the lower blade along the rotation direction of the rotating shaft.

[0025] More preferably, the lower blade is provided with an upper tooth groove and a lower tooth groove on the front side along the rotation direction of the rotating shaft, the cross sections of the upper tooth groove and the lower tooth groove are both isosceles triangles, and are respectively arranged equidistantly along the length direction of the lower blade, the upper tooth groove and the lower tooth groove are connected, and respectively penetrate to the top side and the bottom side of the lower blade, and the upper tooth groove and the lower tooth groove are alternately arranged;

[0026] The stirring blade also includes a transition portion, which is fixedly arranged above the lower tooth groove. Two dividing surfaces are provided on the transition portion, and the dividing surfaces are continuously arranged with the lower tooth groove. The two dividing surfaces on the same transition portion are respectively continuously arranged with the two upper tooth grooves, and the two dividing surfaces on the same transition portion are symmetrically arranged about the center line of the lower tooth groove.

[0027] On the basis of the above technical solution, preferably, the degassing layer and the stirring blade are both provided in plurality and correspond one to one;

[0028] At least four air inlets are arranged from top to bottom, and the plurality of air inlets are respectively used to transport steam, hot air and cold air into the degassing machine body and to discharge the cold air in the degassing machine body from top to bottom.

[0029] In a second aspect, the present invention provides a grease treatment process, using the above energy-saving DTDC equipment, comprising the following steps:

[0030] S1, connecting the steam equipment, the hot air source, the cold air source and the exhaust equipment to a plurality of air inlets at corresponding positions respectively, and connecting the air outlet to the steam recovery device;

[0031] S2, using a reducer to drive the rotating shaft to rotate, and drive the control plate to slide back and forth, so as to alternately block the plurality of air holes;

[0032] S3, using an electric baffle to block each of the feed openings;

[0033] S4, adding the meal material into the degassing machine body from the feed inlet, and loosening and driving the meal material on the upper side of the tray by rotating the stirring blade;

[0034] S5, according to the layer height of the meal on the upper side of each tray, the electric baffle at each discharge port is controlled to move, so that the meal passes through each steaming and desolventizing layer in turn, and the meal is desolventized, dried and cooled respectively, and the steam containing the solvent is discharged along the air outlet to the steam recovery device.

[0035] The energy-saving DTDC equipment and grease treatment process of the present invention have the following beneficial effects compared with the prior art:

[0036] (1) By setting up a control plate and utilizing its alternate blocking of the pores, the wet meal at different positions on the tray can be alternately agglomerated and split, thereby reducing the overall agglomeration of the wet meal and ensuring the desolventizing efficiency of the wet meal;

[0037] (2) By providing a driving member consisting of a fixed seat, a socket and a roller, the rotation of the rotating shaft can be used to drive the control panel to slide back and forth, so that the control panel can operate automatically, thereby improving the convenience of use of the device;

[0038] (3) By arranging upper and lower tooth grooves on the lower blade and arranging a transition portion in the lower tooth groove, the looseness of the wet meal can be ensured in coordination with the rotation of the stirring blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 A cross-sectional view of an energy-saving DTDC device and a grease treatment process of the present invention;

[0041] Figure 2 A top view of a tray in an energy-saving DTDC device and a grease treatment process of the present invention;

[0042] Figure 3 A bottom view of an energy-saving DTDC device and a grease treatment process of the present invention, wherein the evaporation layer is in a first state;

[0043] Figure 4 A bottom view of an energy-saving DTDC device and a grease treatment process of the present invention, wherein the evaporation layer is in a second state;

[0044] Figure 5 A bottom view of an energy-saving DTDC device and a grease treatment process of the present invention, wherein the evaporation layer is in a third state;

[0045] Figure 6 for Figure 3 The enlarged view of point A in the middle;

[0046] Figure 7 for Figure 4 The enlarged view of point B in the middle;

[0047] Figure 8 for Figure 5 Enlarged view of point C in the middle;

[0048] Fig. 9 An exploded diagram of a driving part in an energy-saving DTDC device and a grease treatment process of the present invention;

[0049] Fig.10 A top view of a stirring blade in an energy-saving DTDC device and a grease treatment process of the present invention;

[0050] Fig.11 A front view of a stirring blade in an energy-saving DTDC device and a grease treatment process of the present invention;

[0051] Fig.12 A three-dimensional diagram of a stirring blade in an energy-saving DTDC device and a grease treatment process of the present invention;

[0052] Fig.13 It is a three-dimensional diagram of the transition part of an energy-saving DTDC device and a grease treatment process of the present invention.

[0053] Wherein: 1. degassing machine body; 101. feed port; 102. air inlet; 103. air outlet; 2. degassing layer; 21. tray; 22. control panel; 201. air hole; 202. feed port; 203. through hole; 204. drive hole; 3. rotating shaft; 4. stirring blade; 41. upper blade; 42. lower blade; 43. transition part; 401. upper tooth groove; 402. lower tooth groove; 403. dividing surface; 5. driving member; 51. fixing seat; 52. socket; 53. roller; 501. slot. DETAILED DESCRIPTION

[0054] The following will be combined with the specific implementation of the present invention to clearly and completely describe the technical solution in the present invention. Obviously, the described implementation is only a part of the implementation of the present invention, not all of the implementation. Based on the implementation of the present invention, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] like Figure 1-13As shown, an energy-saving DTDC device of the present invention comprises a degassing machine body 1, a degassing layer 2, a rotating shaft 3, a stirring blade 4 and a driving member 5, which is used for degassing, drying and cooling wet meal and collecting the solvent in the wet meal.

[0056] The degassing machine body 1 is used to provide an environment for the processing of wet meal and to carry other components. The degassing machine body 1 is provided with a feed port 101, an air inlet 102 and an air outlet 103. The wet meal enters the degassing machine body 1 through the feed port 101, and the steam for degassing the wet meal, the hot air for drying the wet meal and the cold air for cooling the wet meal enter the degassing machine body 1 through the air inlet 102 to contact the wet meal. The air outlet 103 is arranged on the top side of the degassing machine body 1, and the steam containing the solvent is discharged from the degassing machine body 1 through the air outlet 103. Of course, in order to be able to discharge the processed wet meal out of the degassing machine body 1, a discharge port should also be provided on the lower side of the degassing machine body 1.

[0057] The degassing layer 2 is used to support the meal material (the meal material includes the wet meal added to the degassing machine body 1 and the material formed after the wet meal is desolventized, dried or cooled). The degassing layer 2 includes a tray 21 and a control panel 22. The tray 21 is fixedly arranged in the degassing machine body 1, and a plurality of rows of air holes 201 and a feed opening 202 are opened inside the tray 21. The feed opening 101 and the air inlet 102 are respectively located at the upper and lower sides of the tray 21, and the feed opening 101 and the air inlet 102 are connected through the air holes 201 and the feed opening 202. The inner diameter of the air holes 201 is small enough to prevent the meal material from passing through, and only allow gas to pass through. When the meal material falls onto the tray 21, , use the electric baffle to block the feed opening 202, the meal can stay above the tray 21, and the steam can contact the meal from bottom to top through the air holes 201, so as to achieve the desolventizing operation of the meal, and the hot air and cold air can also contact the meal from bottom to top through the air holes 201, so as to achieve the drying and cooling operation of the meal; after the processing state of the meal reaches the standard, cancel the blocking of the feed opening 202 by the electric baffle, and the meal can be allowed to fall along the feed opening 202 to the bottom of the steam-stripping layer 2 for the next step; wherein, a row of air holes 201 refers to a plurality of air holes 201 arranged in a straight line trajectory.

[0058] However, the multiple air holes 201 on the tray 21 are arranged at intervals. After the steam passes through the air holes 201 and contacts the meal, the meal at the position of each air hole 201 will form multiple agglomerates, thereby reducing the contact area between the meal and the steam and reducing the desolventizing efficiency of the meal.

[0059] The control plate 22 is slidably disposed on the bottom side of the tray 21 and alternately blocks the multiple rows of air holes 201; Figure 3 This is a bottom view of the evaporation layer 2 when the control plate 22 slides to the first state. Figure 4 This is a bottom view of the evaporation layer 2 when the control plate 22 slides to the second state. Figure 6 and Figure 7 The enlarged views of the same position on the evaporation layer 2 in the two states are shown respectively, and the dotted circle in the figure indicates the position of the pore 201 blocked by the control plate 22, and Figure 6 and Figure 7 Five rows of pores 201 are shown in FIG. Figure 6 As shown, at this time, the control board 22 blocks the second and fourth rows of air holes 201, and the meal materials at the positions of the first, third and fifth rows of air holes 201 on the tray 21 are in contact with the steam, so that the meal materials at the positions of the first, third and fifth rows of air holes 201 are agglomerated. Meal material agglomeration refers to the agglomeration formed by the mutual attraction of meal material bulk materials when they meet water. The formation of multiple meal material agglomerates is bound to form cracks between two adjacent meal material agglomerates. The position of the crack is the position of the blocked air hole 201 (the middle position of the two rows of meal material agglomerates). As the control board 22 moves, as shown in FIG. Figure 7 As shown, at this time, the control board 22 blocks the first, third and fifth columns of air holes 201, and the meal materials at the second and fourth columns of air holes 201 on the tray 21 are in contact with the steam, so that the meal materials at the second and fourth columns of air holes 201 are agglomerated, that is, the meal materials at the crack positions of the original meal materials are agglomerated, and cracks appear in the meal materials at the original agglomerated positions of the meal materials, that is, the original meal materials agglomerates are split. After the control board 22 moves back and forth, the meal materials are allowed to continuously agglomerate-split-cluster-split, thereby reducing the overall agglomeration phenomenon of the meal materials, which is beneficial to improving the desolventizing efficiency of the meal materials.

[0060] The alternate blocking of the air holes 201 also reduces the cross-sectional area of ​​the steam flow, and reduces the amount of steam input while maintaining the steam flow rate, thereby achieving a certain energy-saving effect.

[0061] The rotating shaft 3 is used to drive the stirring blade 4 to rotate, and the rotating shaft 3 is rotatably arranged in the degassing machine body 1; the rotating shaft 3 preferably passes through the degassing machine body 1, and the rotating shaft 3 is driven by a reducer.

[0062] The stirring blade 4 is used to disturb the meal on the top side of the tray 21. The stirring blade 4 is fixedly set on the rotating shaft 3, and is in contact with and slidably connected to the top side of the tray 21. When the meal comes into contact with the steam, the stirring blade 4 disturbs the meal to make it looser. After the meal is processed, the stirring blade 4 disturbs the meal to push it to the position of the discharge port 202, so that the meal can enter the next step.

[0063] like Figure 1As shown, the degassing layers 2 and the stirring blades 4 are provided in plurality and correspond to each other. The meal is transferred step by step between the plurality of degassing layers 2, and the pre-degassing, desolventizing, drying and cooling operations of the meal are respectively performed from top to bottom, thereby improving the perfection of the meal processing. Correspondingly, at least four air inlets 102 are provided from top to bottom, and the plurality of air inlets 102 are respectively used to transport steam, hot air and cold air into the degassing body 1 and to discharge the cold air in the degassing body 1 from top to bottom, and the meal in the pre-degassing and desolventizing operations is realized by the contact between the steam and the meal. After the desolventizing operation is completed, the meal falls onto the desolventizing layer 2 in contact with the hot air to be dried. The hot air and steam can communicate with each other, and the dried meal falls onto the desolventizing layer 2 in contact with the cold air for cooling. In order to avoid the temperature in the desolventizing body 1 being affected, the cold air is not communicated with the hot air and steam, but is extracted in time by the air inlet 102 on the other side. After the meal is processed, the meal is discharged to the outside of the desolventizing body 1. This multi-layer structure and multi-layer step-by-step processing of meal are prior art.

[0064] The tray 21 and the control plate 22 are preferably circular, and a notch corresponding to the feed opening 202 is provided on the control plate 22 to allow the meal to pass through the control plate 22. A plurality of rows of through holes 203 are also provided in the control plate 22. The plurality of rows of through holes 203 and the plurality of rows of air holes 201 are equidistantly arranged along the sliding direction of the control plate 22. The plurality of through holes 203 in the same row of through holes 203 and the plurality of air holes 201 in the same row of air holes 201 are equidistantly arranged. The spacing between two adjacent rows of air holes 201, the spacing between two adjacent air holes 201 in the same row of air holes 201, and the spacing between two adjacent through holes 203 in the same row of through holes 203 are equal and are half of the spacing between two adjacent rows of through holes 203. Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, when the control board 22 is slid, the through holes 203 and the air holes 201 are matched to each other in spacing, so that the through holes 203 and the multiple columns of air holes 201 are alternately connected, so that the positions on the control board 22 where no through holes 203 are provided can alternately block the multiple columns of air holes 201.

[0065] The spacing between two adjacent rows of pores 201 is twice the diameter of the pores 201; the inner diameter of the through hole 203 is larger than the inner diameter of the pores 201, but smaller than twice the inner diameter of the pores 201. Figure 5 and Figure 8 As shown, by utilizing this size combination, one through hole 203 can be connected to two pores 201 in two adjacent rows of pores 201 at the same time, thereby improving the contact uniformity between the meal and the gas passing through the pores 201. This state is suitable for the drying and drying process of the meal, and the meal will not have the problem of clumping.

[0066] Although the desiccant layers 2 at different positions play different roles, they have the same shape and structure, which is beneficial to improving the batch processing efficiency of the desiccant machine.

[0067] The driving member 5 is used to realize the automatic sliding of the control panel 22. The rotating shaft 3 passes through the tray 21. The rotating shaft 3 and the tray 21 are sealed and rotatably connected. A driving hole 204 is opened in the control panel 22, and the rotating shaft 3 passes through the driving hole 204; the driving member 5 is fixedly arranged on the rotating shaft 3, and the end of the driving member 5 away from the rotating shaft 3 is slidably connected with the inner wall of the driving hole 204, and the length from the end of the driving member 5 away from the rotating shaft 3 to the end of the driving member 5 close to the rotating shaft 3 is greater than the radius difference between the driving hole 204 and the rotating shaft 3; that is, the driving member 5 cooperates with the rotating shaft 3 to form a cam-shaped structure, and when the rotating shaft 3 rotates, the driving member 5 can be driven to rotate, and then the sliding cooperation between the end of the driving member 5 away from the rotating shaft 3 and the inner wall of the driving hole 204 and the sliding cooperation between the control panel 22 and the tray 21 can make the control panel 22 slide back and forth on the tray 21.

[0068] The driving member 5 includes a fixing seat 51, a socket 52 and a roller 53. Fig. 9 As shown, the fixing seat 51 is fixedly set on the rotating shaft 3, and a slot 501 is opened on the side away from the rotating shaft 3; one end of the socket 52 is slidably set in the slot 501, and the socket 52 is in contact with the side of the fixing seat 51 away from the rotating shaft 3; the roller 53 is rotatably set at the end of the socket 52 away from the fixing seat 51, and is rollingly connected with the inner wall of the driving hole 204; the rolling cooperation between the roller 53 and the inner wall of the driving hole 204 can reduce the friction loss between the two, thereby increasing the service life of the driving member 5, and the sliding cooperation between the socket 52 and the fixing seat 51 can realize the quick disassembly and assembly of the roller 53, thereby facilitating the maintenance of the driving member 5.

[0069] like Figure 3 As shown, the length from the side of the roller 53 away from the rotating shaft 3 to the side of the rotating shaft 3 away from the roller 53 is equal to the inner diameter of the driving hole 204, that is, during the rotation of the rotating shaft 3, the roller 53 and the rotating shaft 3 are always in contact with the inner wall of the driving hole 204 to ensure the movement stability of the control board 22 and the consistency of the moving distance of the control board 22.

[0070] The length from one end of the fixing seat 51 away from the rotating shaft 3 to the center line of the rotating shaft 3 is equal to the radius of the driving hole 204. Figure 5 As shown, after the socket 52 is removed, the fixing seat 51 is rotated by the rotating shaft 3, so that the end of the fixing seat 51 away from the rotating shaft 3 is slidably connected with the inner wall of the driving hole 204, so that the control board 22 and the tray 21 are in a concentric state without moving the control board 22, so that the through hole 203 and the air hole 201 can always be kept Figure 8 Status shown.

[0071] like Fig.11 As shown, the stirring blade 4 includes an upper blade 41 and a lower blade 42, both of which are fixedly arranged on the rotating shaft 3, and the upper blade 41 is arranged above the tray 21 and is spaced therefrom, and the lower blade 42 is abutted against and slidably arranged on the top side of the tray 21, the upper blade 41 is used to evenly spread the meal on the tray 21, and the lower blade 42 is used to disturb the meal on the bottom layer; Fig.10 As shown, the ends of the upper blade 41 and the lower blade 42 away from the rotating shaft 3 are both located behind the end close to the rotating shaft 3 along the rotation direction of the rotating shaft 3. When the rotating shaft 3 rotates, the upper blade 41 and the lower blade 42 can be used to drive the meal to the periphery of the tray 21 so that the meal can enter the discharge port 202; the bottom end of the upper blade 41 is located behind the top end of the upper blade 41 along the rotation direction of the rotating shaft 3, so as to press the top layer of meal downward when it rotates, and the bottom end of the lower blade 42 is located in front of the top end of the lower blade 42 along the rotation direction of the rotating shaft 3, so as to lift the bottom layer of meal upward when it rotates.

[0072] The lower blade 42 is provided with an upper tooth groove 401 and a lower tooth groove 402 on the front side along the rotation direction of the rotating shaft 3. The cross sections of the upper tooth groove 401 and the lower tooth groove 402 are both isosceles triangles and are arranged equidistantly along the length direction of the lower blade 42. The upper tooth groove 401 and the lower tooth groove 402 are connected and penetrate to the top side and the bottom side of the lower blade 42 respectively, and the upper tooth groove 401 and the lower tooth groove 402 are arranged alternately; the stirring blade 4 also includes a transition portion 43, the transition portion 43 is fixedly arranged above the lower tooth groove 402, and two dividing surfaces 403 are provided on the transition portion 43, the dividing surfaces 403 are continuously arranged with the lower tooth groove 402, and the two dividing surfaces 403 on the same transition portion 43 are respectively continuously arranged with the two upper tooth grooves 401, and the two dividing surfaces 403 on the same transition portion 43 are symmetrically arranged about the center line of the lower tooth groove 402 connected thereto; Fig.13As shown, the upper tooth grooves 401 and the lower tooth grooves 402 are provided so that the surface of the lower blade 42 forms a two-layer staggered tooth plate structure. When the rotating shaft 3 drives the lower blade 42 to rotate, the bottom layer of the meal first contacts the lower end of the lower blade 42 and respectively enters into the multiple lower tooth grooves 402 to form multiple strands of meal. As the lower blade 42 rotates, the multiple strands of meal are driven to move upward. One strand of meal in the same lower tooth groove 402 is further divided into two small strands of meal by the two dividing surfaces 403 of the transition part 43. The two small strands of meal enter into two adjacent upper tooth grooves 401 respectively, and finally move to the top of the upper tooth groove 401 and fall onto the tray 21. The two divisions of the meal by the lower blade 42 can also avoid The meal material agglomerates, thereby improving the desolventizing efficiency of the meal material; more importantly, the meal material between two adjacent lower tooth grooves 402 on the tray 21 is first divided into two strands of meal material by the two lower tooth grooves 402, and the two strands of meal material are separated again when passing through the transition portion 43, and converged into the upper tooth groove 401, that is, although the meal material is divided twice, the distance between the position where it returns to the tray 21 and the center point of the tray 21 is consistent with the distance between its original position and the center point of the tray 21, so it will not affect the relative position of the meal material and the pore 201, so that the disturbance of the meal material by the stirring blade 4 and the alternating blocking of the pore 201 do not conflict with each other, but jointly improve the processing efficiency of the meal material.

[0073] The steps of a grease treatment process of the present invention are as follows:

[0074] S1, connect the steam equipment, hot air source, cold air source and exhaust equipment to multiple air inlets 102 at corresponding positions respectively, and connect the air outlet 103 to the steam recovery device; wherein, the air inlet 102 connected to the cold air source is located below the lowest degassing layer 2, and the air inlet 102 connected to the exhaust equipment is arranged above the lowest degassing layer 2, and the air inlet 102 connected to the cold air source and the air inlet 102 connected to the exhaust equipment are symmetrically arranged about the center line of the degassing body 1, so that the cold air can be extracted in time after the meal is cooled; the air inlet 102 connected to the hot air source is arranged above the second degassing layer 2 from bottom to top, the air inlet 102 connected to the steam equipment is arranged above the air inlet 102 connected to the hot air source is arranged above the third degassing layer 2 from bottom to top, so as to respectively play the role of drying, desolventizing and pre-degassing the meal;

[0075] S2, using a reducer to drive the rotating shaft 3 to rotate, thereby driving the driving member 5 to rotate synchronously with the rotating shaft 3, driving the control plate 22 to slide back and forth, so as to alternately block the multiple air holes 201;

[0076] S3, using electric baffles to block each material discharge port 202;

[0077] S4, the meal material is added into the degassing machine body 1 from the feed inlet 101, and the meal material on the upper side of the tray 21 is loosened and driven by the rotation of the stirring blade 4 by the rotating shaft 3;

[0078] S5, according to the layer height of the meal material on the upper side of each tray 21, the electric baffles at each discharge port 202 are controlled to move, so that the meal material passes through each steam-stripping layer 2 in turn, and the meal material is desolventized, dried and cooled respectively, and the steam containing the solvent is discharged along the air outlet 103 to the steam recovery device to achieve solvent recovery.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving DTDC device, characterized in that: It comprises a degassing machine body (1), a degassing layer (2), a rotating shaft (3) and a stirring blade (4), wherein: The degassing machine body (1) is provided with a feed inlet (101) and an air inlet (102), and a top side thereof is provided with an air outlet (103); The degassing layer (2) comprises a tray (21) and a control panel (22); the tray (21) is fixedly arranged in the degassing machine body (1), and has a plurality of rows of air holes (201) and a material discharge port (202) arranged therein; the material feed port (101) and the air inlet (102) are respectively located at the upper and lower sides of the tray (21), and are connected via the air holes (201) and the material discharge port (202); the control panel (22) is slidably arranged on the bottom side of the tray (21), and alternately blocks the plurality of rows of air holes (201); The rotating shaft (3) is rotatably arranged in the degassing machine body (1); The stirring blade (4) is fixedly arranged on the rotating shaft (3) and is in contact with and slidably connected to the top side of the tray (21); The control plate (22) has a plurality of rows of through holes (203) formed therein, the plurality of rows of through holes (203) and the plurality of rows of air holes (201) are arranged equidistantly along the sliding direction of the control plate (22), and the plurality of through holes (203) in the same row of through holes (203) and the plurality of air holes (201) in the same row of air holes (201) are arranged equidistantly; The spacing between two adjacent columns of the pores (201), the spacing between two adjacent pores (201) in the same column of the pores (201), and the spacing between two adjacent through holes (203) in the same column of the through holes (203) are equal and are half of the spacing between two adjacent columns of the through holes (203); It also includes a driving member (5), the rotating shaft (3) passes through the tray (21) and is sealed and rotatably connected thereto, a driving hole (204) is provided in the control panel (22), and the rotating shaft (3) passes through the driving hole (204); The driving member (5) is fixedly arranged on the rotating shaft (3), and its end away from the rotating shaft (3) is slidably connected to the inner wall of the driving hole (204), and the length from the end away from the rotating shaft (3) to the end close to the rotating shaft (3) is greater than the radius difference between the driving hole (204) and the rotating shaft (3).

2. An energy-saving DTDC device as claimed in claim 1, characterized in that: The distance between two adjacent rows of the pores (201) is twice the diameter of the pores (201); The inner diameter of the through hole (203) is larger than the inner diameter of the air hole (201) and smaller than twice the inner diameter of the air hole (201).

3. An energy-saving DTDC device according to claim 1, characterized in that: The driving member (5) comprises a fixing seat (51), a socket (52) and a roller (53), wherein: The fixing seat (51) is fixedly arranged on the rotating shaft (3), and a slot (501) is provided on a side thereof away from the rotating shaft (3); One end of the socket (52) is slidably disposed in the slot (501), and the socket (52) abuts against a side of the fixing seat (51) away from the rotating shaft (3); The roller (53) is rotatably disposed at one end of the socket (52) away from the fixing seat (51), and is rollingly connected to the inner wall of the driving hole (204).

4. An energy-saving DTDC device as claimed in claim 3, characterized in that: The length from the side of the roller (53) away from the rotating shaft (3) to the side of the rotating shaft (3) away from the roller (53) is equal to the inner diameter of the driving hole (204); The length from one end of the fixing seat (51) away from the rotating shaft (3) to the center line of the rotating shaft (3) is equal to the radius of the driving hole (204).

5. The energy-saving DTDC device according to claim 1, characterized in that: The stirring blade (4) comprises an upper blade (41) and a lower blade (42), wherein the upper blade (41) and the lower blade (42) are both fixedly arranged on the rotating shaft (3), and the upper blade (41) is arranged above the tray (21) and spaced therefrom, and the lower blade (42) is arranged to abut against and slide against the top side of the tray (21); The ends of the upper blade (41) and the lower blade (42) that are away from the rotating shaft (3) are both located behind the ends of the upper blade (41) that are close to the rotating shaft (3) along the rotation direction of the rotating shaft (3), and the bottom end of the upper blade (41) is located behind the top end of the upper blade (41) along the rotation direction of the rotating shaft (3), and the bottom end of the lower blade (42) is located in front of the top end of the lower blade (42) along the rotation direction of the rotating shaft (3).

6. An energy-saving DTDC device as claimed in claim 5, characterized in that: An upper tooth groove (401) and a lower tooth groove (402) are provided on the front side of the lower blade (42) along the rotation direction of the rotating shaft (3); the cross-sections of the upper tooth groove (401) and the lower tooth groove (402) are both isosceles triangles and are arranged equidistantly along the length direction of the lower blade (42); the upper tooth groove (401) and the lower tooth groove (402) are connected and extend through the top side and the bottom side of the lower blade (42), respectively; and the upper tooth groove (401) and the lower tooth groove (402) are arranged alternately; The stirring blade (4) further comprises a transition portion (43), the transition portion (43) being fixedly arranged above the lower tooth groove (402), the transition portion (43) being provided with two dividing surfaces (403), the dividing surfaces (403) being arranged continuously with the lower tooth groove (402), and the two dividing surfaces (403) on the same transition portion (43) being arranged continuously with the two upper tooth grooves (401), respectively, and the two dividing surfaces (403) on the same transition portion (43) being arranged symmetrically with respect to the center line of the lower tooth groove (402).

7. An energy-saving DTDC device according to any one of claims 1 to 6, characterized in that: The degassing layer (2) and the stirring blade (4) are both provided in plurality and correspond to each other one by one; At least four air inlets (102) are provided from top to bottom, and the plurality of air inlets (102) are respectively used to transport steam, hot air and cold air into the degassing machine body (1) and to discharge cold air from the degassing machine body (1).

8. A grease treatment process using the energy-saving DTDC device as claimed in claim 7, characterized in that: The following steps are involved: S1, connecting the steam equipment, the hot air source, the cold air source and the exhaust equipment to a plurality of air inlets (102) at corresponding positions respectively, and connecting the air outlet (103) to the steam recovery device; S2, using a reducer to drive the rotating shaft (3) to rotate, and to drive the control plate (22) to slide back and forth, so as to alternately block the plurality of air holes (201); S3, using an electric baffle to block each of the feed openings (202); S4, the meal material is added into the degassing machine body (1) from the feed inlet (101), and the meal material on the upper side of the tray (21) is loosened and driven by the rotation of the stirring blade (4); S5, controlling the movement of the electric baffles at each of the discharge ports (202) according to the layer height of the meal on the upper side of each of the trays (21), so that the meal passes through each of the steam-stripping layers (2) in sequence, respectively realizing the desolventizing, drying and cooling operations of the meal, and allowing the steam containing the solvent to be discharged along the gas outlet (103) to the steam recovery device.

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