A drying device for preparing dimethyl succinylsuccinate

Abstract

The present invention provides a drying device for preparing dimethyl succinylsuccinate, which relates to the technical field of material drying, and includes a shell, a large drying plate, a small drying plate, a first material-diverting assembly, and a driving assembly; the first material-diverting assembly includes a first material-diverting rod and a first material-diverting plate; a rotating shaft is rotatably installed in the first material-diverting rod, a limiting groove is provided on the first material-diverting rod, a groove is provided on the rotating shaft, the first material-diverting plate is connected to a connecting frame, a rake rod is elastically connected in the connecting frame, a first rake claw is installed below the rake rod, and a second rake claw is provided at the lower end of the connecting frame; the end of the rotating shaft is connected to a power wheel through a belt. The first material-diverting rod of the present invention drives the first material-diverting plate to dig the material, and at the same time drives the rotating shaft to rotate through the power wheel, the groove and the outer end surface of the rotating shaft alternately contact the end of the rake rod, and then drives the rake rod and the first rake claw to reciprocate, and the first rake claw and the second rake claw cooperate to break the agglomerated material, which is beneficial to improve the uniformity of drying the agglomerated material.

Description

Technical Field

[0001] The invention relates to the technical field of material drying, and in particular to a drying device for preparing dimethyl succinylsuccinate. Background Art

[0002] Dimethyl succinylsuccinate is a carboxylic acid derivative containing an acyl group and is an intermediate for preparing quinacridone pigments. Dimethyl succinylsuccinate is prepared by reacting dimethyl succinate with sodium alcoholate, followed by filtration, washing and drying. In the drying process, a disc drying device is a commonly used drying equipment, which is usually equipped with multiple layers of drying discs. The inclined scraper is used to turn the material from the inside to the outside or from the outside to the inside on the drying disc. While drying, the material is turned from the upper material disc to the lower drying disc to realize the transportation and turning of the material during the drying process.

[0003] For example, the patent document with the announcement number CN116358270B discloses a multi-layer rotary disc dryer, including a casing and a multi-layer heating loading tray installed inside the casing, and also including a material shifting mechanism and a material distribution mechanism. The material shifting mechanism includes a driving component and multiple groups of material shifting components. The multiple groups of material shifting components are all installed on the driving component. The multiple groups of material shifting components are respectively adapted to the multi-layer heating loading tray and the casing, and are used to shift and drop the granular material on the heating loading tray to facilitate the drying of the granular material layer by layer, and at the same time, are used to discharge the dried granular material that falls onto the casing. The distribution mechanism includes a double-layer annular distribution box and a distribution screening component.

[0004] When the above dryer dries wet granular materials of different sizes, the large granular materials and small granular materials in the wet granular materials can be screened through the cooperation of the cloth screening component and the screening plate. The screened small granular materials and large granular materials fall onto the heating loading plate through the corresponding discharge pipes respectively. After the materials fall onto the heating loading plate, the large granular materials are subjected to spiral drying motion along the outer ring of the heating loading plate, and the small granular materials are subjected to spiral drying motion along the inner ring of the heating loading plate through the rotation of the material shifting component, thereby extending the drying time of the large granular materials. However, the drying time of the large granular materials by the dryer is relatively long, and the wet granular materials collide and squeeze with each other during the movement, which may cause agglomeration. When this part of the materials and the granular materials are dried together for the same time, the agglomerated materials will be dried unevenly. Summary of the invention

[0005] In view of this, the present invention provides a drying device for preparing dimethyl succinylsuccinate, which can break up agglomerated materials when turning the materials, thereby solving the technical problem of uneven drying of agglomerated materials in the prior art without affecting the drying efficiency.

[0006] In order to solve the above technical problems, the present invention provides a drying device for preparing dimethyl succinylsuccinate, comprising a housing, a large drying plate and a small drying plate alternately arranged in the housing, a first material-pickling assembly arranged on the small drying plate, a second material-pickling assembly arranged on the large drying plate, and a driving assembly for driving the first material-pickling assembly and the second material-pickling assembly to rotate; the first material-pickling assembly comprises a first material-pickling rod, and a first material-pickling plate fixedly mounted on the first material-pickling rod and abutting against the upper end surface of the small drying plate;

[0007] A rotating shaft is rotatably installed in the first material-moving rod, a limiting groove is provided on the first material-moving rod, a groove which can be connected with the limiting groove is provided on the rotating shaft, a hollow connecting frame is fixedly connected to one side of the first material-moving plate, a rake rod is elastically connected in the connecting frame, one end of the rake rod is provided with an end head which can pass through the limiting groove and extend into the groove, and the end head is provided with an inclined surface which matches the outer surface of the rotating shaft, a first rake claw which passes through the connecting frame and can abut against the upper end surface of the small drying plate is fixedly installed below the rake rod, and a second rake claw which is parallel to the first rake claw is provided at the lower end of the connecting frame; the end of the rotating shaft is connected to a power wheel through a belt, and the lower end of the power wheel abuts against the upper end surface of the small drying plate.

[0008] By adopting the above technical solution, the first material-push assembly can push the material on the small drying plate to the large drying plate on the lower layer, and the second material-push assembly can push the material on the large drying plate to the small drying plate on the lower layer. The first material-push rod on the small drying plate rotates around the center of the small drying plate while driving the power wheel to rotate. The power wheel drives the rotating shaft to rotate through the belt. The groove and the outer end surface of the rotating shaft contact the end head alternately, thereby driving the rake rod and the first rake claw to reciprocate. The first rake claw and the second rake claw cooperate to break the agglomerated material, which is beneficial to improving the drying uniformity of the agglomerated material without affecting the drying efficiency.

[0009] Preferably, the connecting frame includes an inverted U-shaped frame body and an L-shaped limiting member fixedly installed in the frame body, a reset spring is connected between the end of the rake rod away from the end head and the limiting member, a limiting hole is provided on the limiting member, the first rake claw passes through the limiting hole and can slide in the limiting hole, the second rake claw is fixedly installed below the limiting member, and the first rake claw and the second rake claw are alternately arranged.

[0010] By adopting the above technical solution, when the agglomerated material is located between the first rake claw and the second rake claw, since the position of the second rake claw is fixed, the first rake claw can slide back and forth in the limiting hole to break the agglomerated material. The alternating arrangement of the first rake claw and the second rake claw is conducive to capturing more agglomerated materials.

[0011] Preferably, the second material-moving assembly comprises a second material-moving rod and a second material-moving plate fixedly mounted on the second material-moving rod and abutting against the upper end surface of the large drying plate.

[0012] By adopting the above technical solution, the second material shifting rod drives the second material shifting plate to move, so that the second material shifting plate pushes the material on the large drying plate to the small drying plate at the lower layer.

[0013] Preferably, the driving assembly comprises a drum rotatably disposed in the housing and penetrating the large drying plate and the small drying plate, a driving member driving the drum to rotate, and the first material moving rod and the second material moving rod are both fixedly mounted on the drum.

[0014] By adopting the above technical solution, the driving member drives the rotating drum to rotate, and then drives the first material shifting rod and the second material shifting rod to rotate, so that the first material shifting plate and the second material shifting plate can realize material shifting.

[0015] Preferably, the large drying plate and the small drying plate are both annular, the inner diameter of the large drying plate is larger than the inner diameter of the small drying plate, and the outer diameter of the large drying plate is larger than the outer diameter of the small drying plate, so that a gap is left between the inner edge of the large drying plate and the rotating drum; the first material shifting plate shifts the material on the small drying plate from the inside to the outside and falls from the outer edge of the small drying plate onto the large drying plate; the second material shifting plate shifts the material on the large drying plate from the outside to the inside and falls from the inner edge of the large drying plate onto the small drying plate.

[0016] By adopting the above technical solution, the first material shifting plate shifts the material on the small drying plate from the inside to the outside and drops it from the outer edge of the small drying plate onto the large drying plate, and the second material shifting plate shifts the material on the large drying plate from the outside to the inside and drops it from the inner edge of the large drying plate onto the small drying plate, thereby realizing the movement of the upper layer of material to the lower layer layer by layer.

[0017] Preferably, the length direction of the frame is perpendicular to the plate surface of the first material shifting plate, a feed port is provided on the rotating drum near the small drying plate, a discharge port is provided on the rotating drum near the large drying plate, a filter is provided on the discharge port, an auger driven by a driving member is provided in the rotating drum, the auger can lift the material upward, and a material outlet is provided above the rotating drum.

[0018] By adopting the above technical solution, the length direction of the frame is perpendicular to the plate surface of the first material-diverting plate, so that the plane formed by the first rake claw and the second rake claw is perpendicular to the plate surface of the first material-diverting plate, the first material-diverting plate digs the material on the small drying plate to move from the inside to the outside, the first rake claw and the second rake claw capture the agglomerated material, crush the agglomerated material and dig the crushed material to move from the outside to the inside, until the material enters the drum through the feed inlet, and the process of the auger in the drum lifting the material upward is conducive to the crushing of the material, and the crushed material can pass through the filter screen to reach the large drying plate after being crushed, and the material that does not pass through the filter screen continues to move to the top of the auger until it enters the upper large drying plate or small drying plate from the material outlet, and then moves downward layer by layer.

[0019] Preferably, a discharge hopper is provided at the lower part of the shell and below the large drying plate, a material inlet is provided at the upper part of the shell, and an exhaust port is provided at the upper end of the shell.

[0020] By adopting the above technical solution, the material moves downward layer by layer into the discharging hopper and is discharged, and the exhaust port is used to discharge the air with moisture, which is beneficial to improving the drying efficiency.

[0021] Preferably, the central axis of the auger is a hollow structure, a hot air box is provided at the upper end of the shell, a hot air blower is installed in the hot air box, and the air outlet of the hot air box is rotatably connected to the central axis of the auger so that the hot air in the hot air box enters the central axis of the auger.

[0022] By adopting the above technical solution, the hot air in the hot air box is transported to the central axis of the auger, which can perform secondary drying on the material in the drum, thereby helping to improve the drying efficiency.

[0023] The beneficial effects of the above technical solution of the present invention are as follows:

[0024] 1. The first material-moving rod of the present invention rotates around the center of the small drying plate, driving the first material-moving plate to move the material while driving the power wheel to rotate. The power wheel drives the rotating shaft to rotate through a belt. The groove and the outer end surface of the rotating shaft contact the end alternately, thereby driving the rake rod and the first rake claw to reciprocate. The first rake claw and the second rake claw cooperate to break the agglomerated material, which is beneficial to improving the drying uniformity of the agglomerated material without affecting the drying efficiency.

[0025] 2. The first material-moving plate moves the material on the small drying plate from inside to outside. The first and second rake claws capture the agglomerated materials, break the agglomerated materials, and move the broken materials from outside to inside until the materials enter the drum through the feed port. The process of the auger in the drum lifting the materials upward is conducive to the breaking of the materials. After the materials are broken, they can pass through the filter screen to reach the large drying plate. The materials that do not pass through the filter screen continue to move to the top of the auger until they enter the large drying plate or small drying plate on the upper layer from the material outlet, and then move downward layer by layer. The agglomerated materials can be broken multiple times, which is conducive to improving the uniformity of drying the agglomerated materials.

[0026] 3. The hot air in the hot air box is transported to the central axis of the auger, which can secondary dry the material in the drum, which is beneficial to improve the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a drying device for preparing dimethyl succinylsuccinate of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure inside the housing of the present invention;

[0029] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0030] Figure 4 is a cross-sectional view of the interior of the housing of the present invention;

[0031] Figure 5 It is a cross-sectional view of the first material shifting assembly of the present invention along the axial direction of the rotating shaft;

[0032] Figure 6 It is a cross-sectional view of the first material shifting assembly of the present invention along the length direction of the shifting rod.

[0033] In the figure: 1, housing; 11, material inlet; 12, exhaust port; 13, discharge hopper; 2, small drying plate; 3, large drying plate; 4, first material shifting assembly; 41, first material shifting rod; 411, limit groove; 412, connecting piece; 42, first material shifting plate; 43, first sleeve; 44, rotating shaft; 441, groove; 442, power wheel; 443, belt; 45, connecting frame; 451, frame; 452, limit piece; 453, limit Position hole; 454, second rake claw; 46, rake rod; 461, end; 462, return spring; 463, first rake claw; 5, second material shifting assembly; 51, second material shifting rod; 52, second material shifting plate; 53, second sleeve; 6, drive assembly; 61, rotating drum; 611, feed inlet; 612, discharge outlet; 613, filter screen; 614, auger; 615, material outlet; 616, center shaft; 62, drive member; 63, hot air box. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figure 1-Figure 6 , the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0035] Example

[0036] This embodiment provides a drying device for preparing dimethyl succinylsuccinate, such as Figure 1 and Figure 2 As shown, it includes a housing 1, a large drying plate 3, a small drying plate 2 and a material-dispensing mechanism.

[0037] like Figure 1 and Figure 2 As shown, a discharge hopper 13 is provided at the lower part of the shell 1 and below the large drying plate 3, a material inlet 11 is provided at the upper part of the shell 1, and an exhaust port 12 is provided at the upper end of the shell 1. The exhaust port 12 is used to discharge the humid air, which is beneficial to improve the drying efficiency.

[0038] like Figure 2As shown, the large drying plate 3 and the small drying plate 2 are alternately arranged in the housing 1, and an equal distance is left between the upper and lower adjacent drying plates. The large drying plate 3 and the small drying plate 2 are both annular, and a heating cavity is left inside. The large drying plate 3 and the small drying plate 2 are fixedly connected to the housing 1 with a pipe, and the external heat source enters the heating cavity through the pipe, thereby drying the materials on the large drying plate 3 and the small drying plate 2.

[0039] like Figure 1 and Figure 2 As shown, the material shifting mechanism includes a first material shifting assembly 4, a second material shifting assembly 5 and a driving assembly 6.

[0040] like Figure 1 and Figure 2 As shown, the first material-dividing assembly 4 is arranged on the small drying plate 2, the second material-dividing assembly 5 is arranged on the large drying plate 3, and the driving assembly 6 is used for driving the first material-dividing assembly 4 and the second material-dividing assembly 5 to rotate.

[0041] like Figure 1 and Figure 2 As shown, the driving assembly 6 includes a rotating drum 61 and a driving member 62 for driving the rotating drum 61 to rotate.

[0042] like Figure 2 As shown, the rotary drum 61 is rotatably arranged in the housing 1 and penetrates the large drying plate 3 and the small drying plate 2. The inner diameter of the large drying plate 3 is larger than the inner diameter of the small drying plate 2, and the outer diameter of the large drying plate 3 is larger than the outer diameter of the small drying plate 2, so that a gap is left between the inner edge of the large drying plate 3 and the rotary drum 61; the first material shifting assembly 4 shifts the material on the small drying plate 2 from the inside to the outside until it falls from the outer edge of the small drying plate 2 to the large drying plate 3 at the lower layer; the second material shifting assembly 5 shifts the material on the large drying plate 3 from the outside to the inside until it falls from the inner edge of the large drying plate 3 to the small drying plate 2 at the lower layer, so that the material on the upper layer moves layer by layer to the lower layer.

[0043] like Figure 1 and Figure 2 As shown, the driving member 62 is driven by a motor, and the output shaft of the motor is connected to the rotating drum 61 through a gear transmission.

[0044] like Figure 2 and Figure 3 As shown, the first material shifting assembly 4 includes a first material shifting rod 41 and a first material shifting plate 42 .

[0045] like Figure 2 and Figure 3 As shown, a plurality of first material-moving rods 41 are evenly distributed on each small drying plate 2 along the radial direction of the small drying plate 2 , and the first material-moving rods 41 are fixedly connected to the rotating drum 61 .

[0046] like Figure 2 and Figure 3As shown, the first material-diverting plate 42 is fixedly mounted on the first material-diverting rod 41 through the first sleeve 43, the first sleeve 43 is fixedly sleeved on the first material-diverting rod 41, and the first material-diverting plate 42 is obliquely mounted on one side of the first sleeve 43. The lower end surface of the first material-diverting plate 42 abuts against the upper end surface of the small drying tray 2, so that the first material-diverting plate 42 can divert the material on the small drying tray 2 from the inside to the outside, and then fall from the outer edge of the small drying tray 2 to the large drying tray 3 at the lower layer.

[0047] like Figure 2 and Figure 3 As shown, a plurality of first material diverting plates 42 are fixedly mounted on the first material diverting rod 41, and the number of first material diverting plates 42 mounted on two adjacent first material diverting rods 41 is different, so that the first material diverting plates 42 on two adjacent first material diverting rods 41 can be staggered. For example, the number of first material diverting plates 42 on the first material diverting rod 41 is three, and the number of first material diverting plates 42 on the adjacent first material diverting rods 41 is four, so that the first material diverting plates 42 on the two first material diverting rods 41 are staggered, which is convenient for diverting more materials on the small drying plate 2.

[0048] like Figure 5 and Figure 6 As shown, the first material-moving rod 41 is a hollow structure, and a rotating shaft 44 is rotatably installed in the first material-moving rod 41. An inclined groove is provided on the first sleeve 43 at a position away from the first material-moving plate 42, and a limiting groove 411 connected to the inclined groove is provided on the first material-moving rod 41 at a position close to the inclined groove. A plurality of grooves 441 that can be connected to the limiting groove 411 are provided on the rotating shaft 44, and the number of the limiting grooves 411, the grooves 441 and the first sleeve 43 are the same. A hollow connecting frame 45 is obliquely installed on one side of the first sleeve 43 away from the first material-moving plate 42, and the inclination direction of the connecting frame 45 is perpendicular to the inclination direction of the first material-moving plate 42.

[0049] like Figure 5 and Figure 6 As shown, the connecting frame 45 includes an inverted U-shaped frame body 451 and an L-shaped stopper 452 fixedly installed in the frame body 451. A rake rod 46 is arranged in the frame body 451, and a return spring 462 is connected between the end of the rake rod 46 away from the first sleeve 43 and the stopper 452, and the other end of the rake rod 46 is provided with an end 461 which can pass through the inclined groove and the stopper groove 411 in sequence and extend into the groove 441, and the end 461 is provided with an inclined surface matched with the outer surface of the rotating shaft 44.

[0050] like Figure 5 and Figure 6As shown, a plurality of limiting holes 453 are provided at the lower part of the limiting member 452, and a plurality of first rake claws 463 that can pass through the limiting holes 453 are provided below the rake rod 46. The limiting holes 453 are elliptical and the long axis of the limiting holes 453 is parallel to the length direction of the rake rod 46, so that the first rake claws 463 can slide in the long axis direction of the limiting holes 453. A plurality of second rake claws 454 are fixedly installed below the limiting member 452, and the first rake claws 463 and the second rake claws 454 are alternately arranged. The distance between the first rake claws 463 and the second rake claws 454 on the small drying plates 2 from top to bottom in the housing 1 decreases successively, and the agglomerated materials can be crushed in stages.

[0051] like Figure 2 and Figure 3 As shown, a connecting piece 412 is fixedly installed at the lower part of one end of the first material-moving rod 41 away from the rotating drum 61, and a power wheel 442 is rotatably connected to the lower part of the connecting piece 412. The end of the rotating shaft 44 extends out of the end of the first material-moving rod 41, and a belt 443 is connected between the extended end of the rotating shaft 44 and the power wheel 442, and the lower end of the power wheel 442 abuts against the upper end surface of the small drying plate 2.

[0052] like Figure 2 and Figure 3 As shown, the first material-moving rod 41 rotates around the axis of the rotating drum 61, driving the first material-moving plate 42 to move the material on the small drying plate 2 from the inside to the outside, while driving the power wheel 442 to rotate, and the power wheel 442 drives the rotating shaft 44 to rotate through the belt 443, as shown in FIG. Figure 6 As shown, the groove 441 and the outer end surface of the rotating shaft 44 are alternately in contact with the end 461, thereby driving the rake rod 46 and the first rake claw 463 to reciprocate along the length direction of the rake rod 46, and the first rake claw 463 and the second rake claw 454 capture the agglomerated materials pushed over by the first material-push plate 42. Since the second rake claw 454 is fixed in position, the first rake claw 463 can slide back and forth in the limiting hole 453, which can break the agglomerated materials, which is beneficial to improving the uniformity of drying the agglomerated materials without affecting the drying efficiency.

[0053] like Figure 4 As shown, the second material shifting assembly 5 includes a second material shifting rod 51 and a second material shifting plate 52 .

[0054] like Figure 4 As shown, each large drying plate 3 is evenly provided with a plurality of second material shifting rods 51 along the radial direction of the large drying plate 3 , and the second material shifting rods 51 are fixedly connected to the rotating drum 61 .

[0055] like Figure 4As shown, the second material-diverting plate 52 is fixedly installed on the second material-diverting rod 51 through the second sleeve 53, the second sleeve 53 is fixedly sleeved on the second material-diverting rod 51, the second material-diverting plate 52 is obliquely arranged on one side of the second sleeve 53, the inclination direction of the second material-diverting plate 52 is perpendicular to the inclination direction of the first material-diverting plate 42, the lower end surface of the second material-diverting plate 52 abuts against the upper end surface of the large drying plate 3, so that the second material-diverting plate 52 can dig the material on the large drying plate 3 to move from the outside to the inside, and then fall from the inner edge of the large drying plate 3 onto the small drying plate 2 on the lower layer.

[0056] like Figure 2 and Figure 4 As shown, a feed port 611 is provided on the rotating drum 61 near the small drying plate 2, a discharge port 612 is provided on the rotating drum 61 near the large drying plate 3, a filter screen 613 is provided on the discharge port 612, an auger 614 driven by a motor is provided in the rotating drum 61, an output shaft of the motor is connected to a central shaft 616 of the auger 614 via a conveyor belt transmission, the auger 614 can lift the material upward, and a material outlet 615 is provided above the rotating drum 61.

[0057] like Figure 2 and Figure 4 As shown, since the inclination direction of the connecting frame 45 is perpendicular to the inclination direction of the first material-diverting plate 42, the length direction of the frame body 451 of the connecting frame 45 is perpendicular to the plate surface of the first material-diverting plate 42, so that the plane formed by the first rake claw 463 and the second rake claw 454 is perpendicular to the plate surface of the first material-diverting plate 42, the first material-diverting plate 42 digs the material on the small drying plate 2 to move from the inside to the outside, the first rake claw 463 and the second rake claw 454 capture the agglomerated material, crush the agglomerated material and dig the crushed material to move from the outside to the inside, until the material enters the rotating drum 61 through the feed inlet 611, and the auger 614 in the rotating drum 61 lifts the material upward, which is conducive to the crushing of the material. After the material is crushed, it can pass through the filter screen 613 to reach the large drying plate 3, and the material that does not pass through the filter screen 613 continues to move to the top of the auger 614 until it enters the upper large drying plate 3 or the small drying plate 2 from the material outlet 615, and then moves downward layer by layer.

[0058] like Figure 1 and Figure 4 As shown, the central axis 616 of the auger 614 is a hollow structure, a hot air box 63 is provided at the upper end of the housing 1, a hot air blower is installed in the hot air box 63, and the air outlet of the hot air box 63 is rotatably connected with the central axis 616 of the auger 614, so that the hot air in the hot air box 63 enters the central axis 616 of the auger 614. The hot air in the hot air box 63 is transported to the central axis 616 of the auger 614, which can perform secondary drying on the material in the drum 61, which is beneficial to improving the drying efficiency.

[0059] The implementation principle of a drying device for preparing dimethyl succinylsuccinate in this embodiment is as follows:

[0060] The driving member 62 drives the rotary drum 61 to rotate, and the rotary drum 61 drives the first material-moving rod 41 and the second material-moving rod 51 to rotate around the axis of the rotary drum 61, the first material-moving rod 41 drives the first material-moving plate 42 to move, and the second material-moving rod 51 drives the second material-moving plate 52 to move, and the first material-moving plate 42 moves the material on the small drying tray 2 from the inside to the outside until it falls from the outer edge of the small drying tray 2 to the large drying tray 3 on the lower layer; the second material-moving plate 52 moves the material on the large drying tray 3 from the outside to the inside until it falls from the inner edge of the large drying tray 3 to the small drying tray 2 on the lower layer, so that the material on the upper layer moves to the lower layer layer by layer until it moves into the discharge hopper 13.

[0061] The first material-moving rod 41 rotates around the axis of the rotating drum 61, driving the first material-moving plate 42 to move the materials on the small drying plate 2 from the inside to the outside, while driving the power wheel 442 to rotate. The power wheel 442 drives the rotating shaft 44 to rotate through the belt 443. The groove 441 and the outer end surface of the rotating shaft 44 alternately contact the end 461, thereby driving the rake rod 46 and the first rake claw 463 to reciprocate along the length direction of the rake rod 46. The first rake claw 463 and the second rake claw 454 capture the agglomerated materials moved by the first material-moving plate 42. Since the position of the second rake claw 454 is fixed, the first rake claw 463 can slide back and forth in the limiting hole 453 to crush the agglomerated materials.

[0062] The first rake claw 463 and the second rake claw 454 break the agglomerated materials and move the broken materials from outside to inside until the materials enter the drum 61 through the feed port 611. The auger 614 in the drum 61 lifts the materials upward, which is beneficial to the breaking of the materials. The broken materials can pass through the filter screen 613 to reach the large drying plate 3. The materials that do not pass through the filter screen 613 continue to move to the top of the auger 614 until they enter the upper large drying plate 3 or the small drying plate 2 from the material outlet 615, and then move downward layer by layer.

[0063] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A drying device for preparing dimethyl succinylsuccinate, comprising a housing, a large drying plate and a small drying plate alternately arranged in the housing, a first material-pickling assembly arranged on the small drying plate, a second material-pickling assembly arranged on the large drying plate, and a driving assembly for driving the first material-pickling assembly and the second material-pickling assembly to rotate; the first material-pickling assembly comprises a first material-pickling rod, and a first material-pickling plate fixedly mounted on the first material-pickling rod and abutting against the upper end surface of the small drying plate; characterized in that: A rotating shaft is rotatably installed in the first material-moving rod, a limiting groove is provided on the first material-moving rod, a groove which can be connected with the limiting groove is provided on the rotating shaft, a hollow connecting frame is fixedly connected to one side of the first material-moving plate, a rake rod is elastically connected in the connecting frame, one end of the rake rod is provided with an end head which can pass through the limiting groove and extend into the groove, and the end head is provided with an inclined surface which matches the outer surface of the rotating shaft, a first rake claw which passes through the connecting frame and can abut against the upper end surface of the small drying plate is fixedly installed below the rake rod, and a second rake claw which is parallel to the first rake claw is provided at the lower end of the connecting frame; the end of the rotating shaft is connected to a power wheel through a belt, and the lower end of the power wheel abuts against the upper end surface of the small drying plate; The connecting frame includes an inverted U-shaped frame body and an L-shaped limiting piece fixedly installed in the frame body, a reset spring is connected between the end of the rake rod away from the end and the limiting piece, a limiting hole is provided on the limiting piece, the first rake claw passes through the limiting hole and can slide in the limiting hole, the second rake claw is fixedly installed below the limiting piece, and the first rake claw and the second rake claw are alternately arranged.

2. The drying device for preparing dimethyl succinylsuccinate according to claim 1, characterized in that: The second material-moving assembly comprises a second material-moving rod and a second material-moving plate which is fixedly mounted on the second material-moving rod and abuts against the upper end surface of the large drying plate.

3. The drying device for preparing dimethyl succinylsuccinate according to claim 2, characterized in that: The driving assembly comprises a rotating drum rotatably arranged in a shell body and penetrating a large drying plate and a small drying plate, a driving member driving the rotating drum to rotate, and a first material shifting rod and a second material shifting rod are both fixedly mounted on the rotating drum.

4. The drying device for preparing dimethyl succinylsuccinate according to claim 3, characterized in that: The large drying plate and the small drying plate are both annular, the inner diameter of the large drying plate is larger than the inner diameter of the small drying plate, and the outer diameter of the large drying plate is larger than the outer diameter of the small drying plate, so that a gap is left between the inner edge of the large drying plate and the rotating drum; the first material shifting plate shifts the material on the small drying plate from the inside to the outside until it falls from the outer edge of the small drying plate onto the large drying plate; the second material shifting plate shifts the material on the large drying plate from the outside to the inside until it falls from the inner edge of the large drying plate onto the small drying plate.

5. The drying device for preparing dimethyl succinylsuccinate according to claim 4, characterized in that: The length direction of the frame is perpendicular to the plate surface of the first material shifting plate. A feed port is provided on the rotating drum near the small drying plate, a discharge port is provided on the rotating drum near the large drying plate, a filter is provided on the discharge port, an auger driven by a driving member is provided in the rotating drum, the auger can lift the material upward, and a material outlet is provided above the rotating drum.

6. The drying device for preparing dimethyl succinylsuccinate according to claim 4, characterized in that: A discharging hopper is arranged at the lower part of the shell body and below the large drying plate, a material inlet is arranged at the upper part of the shell body, and an exhaust port is arranged at the upper end of the shell body.

7. The drying device for preparing dimethyl succinylsuccinate according to claim 5, characterized in that: The central axis of the auger is a hollow structure, and a hot air box is provided at the upper end of the shell. A hot air blower is installed in the hot air box. The air outlet of the hot air box is rotatably connected to the central axis of the auger so that the hot air in the hot air box enters the central axis of the auger.

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