Drying device for chemical production

Abstract

The invention relates to the technical field of chemical production, in particular to a drying device for chemical production. The rotary drum dryer aims at solving the problem that when an existing rotary drum dryer rotates, part of materials are prone to being smashed into dust in the throwing process, and raising dust of an existing device is increased. Comprising a mounting frame provided with a supporting piece, a feeding shell and a discharging shell; the rotating cylinder is rotationally connected between the feeding shell and the discharging shell, the rotating cylinder is rotationally matched with the supporting piece, and the mounting frame is provided with a first motor; and the ventilation pipe is arranged between the feeding shell and the discharging shell, and the ventilation pipe is provided with air guide holes which are evenly distributed. The ventilation pipe is arranged in the rotary drum, hot air is introduced into the ventilation pipe in the section direction of the rotary drum, then the hot air and materials thrown downwards are subjected to hedging, the materials are dried through hedging, meanwhile, the downward falling speed of the materials is reduced, and then the situation that the materials collide with the drum body is relieved.

Description

Technical Field

[0001] The invention relates to the technical field of chemical production, and in particular to a drying device for chemical production. Background Art

[0002] Drum dryer is a drying device widely used in chemical raw material drying. It is often used to continuously dry large-scale materials. Drum dryer usually includes a drum and a lifting plate. When the drum dryer is working, hot air is usually introduced along the axis of the drum, and the lifting plate is usually driven by the drum to rotate, and the material on the lower side of the drum is lifted to the upper side of the drum and then thrown downward, thereby increasing the contact area and contact time between the material and the hot air, so as to achieve the purpose of fully drying the material. The particle size of the material entering the drum dryer is usually between 1mm and 5mm. In the above process, because the material is repeatedly thrown from the upper side of the drum to the lower side of the drum, the material often collides with the drum. Light and thin materials (materials with a particle size of less than or equal to 2mm) are easily crushed after colliding with the drum or being hit by heavy materials (materials with a particle size of greater than or equal to 4mm), resulting in an increase in dust generated when the crushed materials are thrown or discharged by the lifting plate. On the one hand, it affects the quality of the gas when the hot air refluxes, and on the other hand, it is easy to cause the air quality around the device to deteriorate, affecting the health of workers. Summary of the invention

[0003] In order to overcome the disadvantage that when the existing rotary drum dryer is rotating, part of the materials are easily crushed into dust during the throwing process, resulting in increased dust in the existing device, the present invention proposes a drying device for chemical production.

[0004] The technical implementation scheme of the present invention is: a drying device for chemical production, including: a mounting frame, on which a support, an upper material shell and a lower material shell are installed; a rotating drum, rotatably connected between the upper material shell and the lower material shell, the rotating drum and the supporting member are rotatably matched, the mounting frame is installed with a first motor, the output shaft of the first motor and the rotating drum are driven by a gear ring; a ventilation pipe, arranged between the upper material shell and the lower material shell, and located in the rotating drum, the ventilation pipe is provided with evenly distributed air guide holes, the ventilation pipe is used to introduce hot air into the rotating drum along the cross-sectional direction of the rotating drum; a fixing plate, having a plurality of evenly distributed fixed plates, fixedly connected to the rotating drum, used to bring the material on the lower side of the rotating drum to its upper side and throw the material downward.

[0005] Furthermore, the cross section of the ventilation pipe is triangular, which is used to increase the area of ​​the upward jet and facilitate the material on the ventilation pipe to slide downward.

[0006] Furthermore, the air guide holes near the apex angle of the ventilation pipe triangle are gradually inclined toward the apex angle of the triangle, the diameter of the air guide holes in the middle of the ventilation pipe triangle edge line is larger than the diameter of the air guide holes at the apex angle of the ventilation pipe triangle, and the ventilation pipe is located in the lower part of the rotating drum.

[0007] Furthermore, all the air guide holes on the ventilation pipe are inclined from the inside of the ventilation pipe to the outside of the ventilation pipe toward a side close to the discharge shell, so as to control the hot air blown out of the ventilation pipe to deflect toward the side of the discharge shell.

[0008] Furthermore, a support portion is provided in the middle of the ventilation pipe, a rotating ring is rotatably connected in the rotating drum, the support portion is rotatably connected to the rotating ring, and the rotating ring is used to provide support for the middle of the ventilation pipe.

[0009] Furthermore, it also includes: a partition, which is fixed in the ventilation pipe, and a connecting pipe is fixed on one side of the ventilation pipe close to the loading shell, and the partition divides the cavity in the ventilation pipe into several equal parts; a rotating head, which is fixed to the outside of the loading shell, and the connecting pipe penetrates the loading shell and is rotatably connected to the rotating head, and a connecting plate and circumferentially uniformly distributed air guide pipes are fixed in the rotating head, the connecting plate is in contact with the partition, and the air guide pipe is connected to the adjacent cavity in the ventilation pipe, and the diameter of the lower air guide pipe is larger than the diameter of the other air guide pipes.

[0010] Furthermore, the ventilation pipe is an isosceles right triangle, the ventilation pipe penetrates the discharge shell and is rotatably connected thereto, the discharge shell is fixedly connected to a second motor, and the output shaft of the second motor and the ventilation pipe are driven by a gear set.

[0011] Furthermore, it also includes: a material spreading mechanism, which is arranged on the fixed plate, and is used to adjust the position where the material falls on the upper side of the rotating drum, so that the material always falls downward in a concentrated manner on both sides of the upper apex of the ventilation pipe, and the material spreading mechanism includes: a rotating claw, which is arranged on the side of the fixed plate away from the rotating drum, and the rotating claw is provided with a curved portion, evenly distributed discharge holes and evenly distributed grooves, the discharge hole is located on the side of the curved portion of the rotating claw close to the rotating drum, and the groove is located on the side of the curved portion of the rotating claw away from the rotating drum.

[0012] Furthermore, the material spreading mechanism also includes: a baffle, which is slidably connected to the rotating claw near the discharge hole, and the baffle is a weight block, and the baffle cooperates with the adjacent discharge hole to block the material.

[0013] Furthermore, the spreading mechanism also includes: a fixed rod, fixedly connected to the fixed plate, the fixed rod is rotatably connected to a rotating roller, a steel wire rope is fixedly connected between the rotating roller and the adjacent baffle plate, the rotating claw is rotatably connected to the fixed plate, and a torsion spring is installed at the connection between the two, and there is damping at the rotational connection between the two.

[0014] The beneficial effect is as follows: the present invention arranges a vent pipe in the drum so that hot air is introduced into the vent pipe along the cross-sectional direction of the drum, thereby causing the hot air to collide with the downwardly scattered material, thereby drying the material through the collision and reducing the downward falling speed of the material, thereby reducing the collision between the material and the drum.

[0015] The present invention controls the air guide holes to tilt toward one side of the lower material shell to sort the materials, discharge the light and thin materials (materials with a particle size of less than or equal to 2 mm) and easier to dry as soon as possible, further reduce the probability of light and thin materials being crushed during the throwing process, and avoid overdrying of the fully dried light and thin materials, consuming the heat in the hot air, thereby improving the efficiency of hot air transferring the temperature of heavy materials.

[0016] The present invention controls the specific position of the material being thrown on the upper side of the ventilation pipe by adding rotating claws and other components to the fixed plate, so that the material is thrown more in the middle of the wind field, thereby improving the efficiency of hot air drying the material and further improving the degree to which the material is moved by the wind field, thereby enhancing the above-mentioned effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the mounting frame, the loading shell and the rotating drum of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the rotary drum, the vent pipe and the rotating ring of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the rotary drum, ventilation pipe and partition of the present invention; Figure 5 An exploded view of the vent pipe and the baffle of the present invention; Figure 6 It is a cross-sectional view of the vent pipe, the partition plate and the connecting pipe of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the rotating claw, the fixing rod and the steel wire rope of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the rotating claw, baffle and wire rope of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the rotating claw, the baffle plate and the fixing rod of the present invention.

[0018] The meanings of the reference numerals in the figure are as follows: 1. mounting frame, 101. supporting member, 102. upper material shell, 103. lower material shell, 2. rotating drum, 201. first motor, 202. feed hopper, 203. lower material hopper, 204. exhaust pipe, 3. ventilation pipe, 301. air guide hole, 302. supporting part, 303. rotating ring, 4. fixing plate, 5. partition, 501. connecting pipe, 6. rotating head, 601. connecting plate, 602. air guide pipe, 7. second motor, 8. rotating claw, 801. discharge hole, 802. groove, 9. baffle, 10. fixing rod, 11. rotating roller, 12. wire rope. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Because the existing rotary drum 2 drying device is prone to throwing out light and thin materials while using its lifting plate to sprinkle materials, the light and thin materials collide with the drum body after being thrown out, generating finer dust, causing the lifting plate of the existing device to raise a large amount of dust during the working process, affecting the air quality of the hot air flowing out of the existing device, and when the material is discharged to the outside after drying, the fine dust in the material is easy to pollute the surrounding air during the discharge process, seriously affecting the health of the staff.

[0021] In view of the above problems, the present invention proposes a drying device for chemical production, such as Figure 1-Figure 4 As shown, it includes: a mounting frame 1, on which a support 101, an upper material shell 102 and a lower material shell 103 are installed; a rotating drum 2, which is rotatably connected between the upper material shell 102 and the lower material shell 103, and the rotating drum 2 and the support 101 are rotatably matched, and the mounting frame 1 is installed with a first motor 201, and the output shaft of the first motor 201 is driven by the rotating drum 2 through a gear ring; a vent pipe 3, which is arranged between the upper material shell 102 and the lower material shell 103 and is located in the rotating drum 2, and the vent pipe 3 is provided with evenly distributed air guide holes 301, and the vent pipe 3 is used to introduce hot air into the rotating drum 2 along the cross-sectional direction thereof; a fixing plate 4, which has a plurality of evenly distributed ones, is fixedly connected to the rotating drum 2, and is used to bring the material on the lower side of the rotating drum 2 to its upper side and throw the material downward.

[0022] In the above scheme, the support member 101 is an existing device, which is used to support the middle part of the drum 2. The drum 2 is gradually tilted downward from the upper shell 102 to the lower shell 103, which is used to assist the material to gradually move and be discharged in the direction of the lower shell 103 during the drying process. The upper shell 102 is fixedly connected and connected to a feed hopper 202, which is used to transport the material into the drum 2. The mounting frame 1 is fixedly connected to a lower hopper 203, which is located at the lower side of the lower shell 103. A discharge port is provided on the lower side of the lower shell 103, which is used to output the material into the lower hopper 203. The upper side of the lower shell 103 is fixedly connected and connected to an exhaust pipe 204, which is used to discharge the gas in the drum 2.

[0023] The vent pipe 3 is always in parallel with the drum 2. The vent pipe 3 is connected to an external air supply device. The air supply device is used to pass hot air into the vent pipe 3 so that the hot air enters the drum 2 to dry the material. The vent pipe 3 sprays the hot air into the drum 2 along the cross-sectional direction of the drum 2 through the air guide holes 301 evenly distributed thereon, so that the hot air on the upper side and the material falling from the upper side are offset. While drying the material, the falling speed of the thin material (the material with a particle size of less than or equal to 2 mm) is reduced. The air guide hole 301 may not be provided on the side to reduce the thrust of the air flow on the material that mistakenly enters the lower side of the ventilation pipe 3. If the air guide hole 301 is provided on the lower side of the ventilation pipe 3, the hot air blown out from the lower side of the ventilation pipe 3 is mainly used to blow the material at the bottom of the rotating drum 2. After the hot air contacts the rotating drum 2, it flows upward under the guidance of the rotating drum 2, and then creates an upward wind field on the side of the ventilation pipe 3. In this solution, the fixed plate 4 can be a straight plate with a bending portion, which increases the maximum stroke of the fixed plate 4 to drive the material to rotate.

[0024] The working process is as follows: the staff first starts the first motor 201, and then the staff starts the air supply equipment. The air supply equipment introduces hot air into the ventilation pipe 3. The hot air sprays the hot air into the drum 2 along the cross-sectional direction of the drum 2 through the air guide holes 301 evenly distributed on the ventilation pipe 3. The output shaft of the first motor 201 drives the drum 2 to rotate together through the gear ring. The drum 2 rotates in coordination with the support 101. The staff transports the material to the feed hopper 202 through the existing conveying device. The material in the feed hopper 202 enters the drum 2 through the loading shell 102. When the drum 2 rotates, it drives the material to rotate together through the fixed plate 4. The fixed plate 4 drives the material to the upper side of the drum 2. The material on it gradually falls downward and disperses as the inclination of the fixed plate 4 increases, which is convenient for the hot air to irritate the material. Drying: During the falling process, the material contacts with the hot air blowing upwards, and the material is supported by the hot air. While being dried by the hot air, the falling speed is slowed down, thereby reducing the impact force between the material and the drum 2 after falling, and reducing the dust generated by the crushed material. The hot air on the lower side of the ventilation pipe 3 blows and dries the material at the bottom of the drum 2. Part of the hot air is guided by the drum 2 to flow upward, and an overall upward wind field is created on the front and rear sides of the lower part of the ventilation pipe 3 to reduce the speed at which the material falls downward after falling to the lower side of the drum 2. In the process of following the rotation of the drum 2, the material gradually moves along the inclined direction of the drum 2 to the lower material shell 103, and is finally discharged from the lower material shell 103 to the lower hopper 203. Finally, the staff collects the material in the lower hopper 203 through the existing conveying device.

[0025] Furthermore, if Figure 2-Figure 4 As shown, the cross section of the vent pipe 3 is triangular, which is used to increase the area of ​​the upward jet and facilitate the material on the vent pipe 3 to slide downward.

[0026] In the above scheme, the cross-section of the vent pipe 3 is triangular, that is, the vent pipe 3 is set as a triangular prism, and the lower side line of the vent pipe 3 is always kept in a horizontal state, thereby ensuring that the air guide holes 301 on the two upper sides of the triangle of the vent pipe 3 always spray upward, thereby creating a larger upward wind field on the upper side of the vent pipe 3, further slowing down the speed at which the material falls downward, and at the same time only spraying air downward through the lower side line of the vent pipe 3, thereby reducing the wind-receiving area of ​​the lower side of the drum 2, and reducing the probability that the material will hit the lower side of the drum 2 after accidentally entering the lower side of the vent pipe 3 due to the push of the hot air ejected downward from the vent pipe 3. At the same time, the two upper sides of the vent pipe 3 are both inclined sides, further reducing the probability of the material accumulating on the vent pipe 3 during the falling process.

[0027] Furthermore, if Figure 4 and Figure 5As shown, the air guide holes 301 near the triangular apex of the ventilation pipe 3 gradually tilt toward the triangular apex, the diameter of the air guide holes 301 in the middle of the triangular side line of the ventilation pipe 3 is larger than the diameter of the air guide holes 301 at the triangular apex of the ventilation pipe 3, and the ventilation pipe 3 is located at the lower part of the drum 2.

[0028] In the above scheme, by controlling the inclination direction of the air guide holes 301, the direction of the gas ejected from the air guide holes 301 near the top corners of the vent pipe 3 is close to the direction of the top corners of the vent pipe 3, and then an airflow close to the vertical direction is ejected at the upper top corners of the vent pipe 3 to reduce the falling speed of the material on the upper side, and by reducing the size of the diameter of the air guide holes 301 near the top corners of the vent pipe 3, the size of the airflow ejected from the air guide holes 301 at the top corners of the vent pipe 3 is reduced, and then the size of the inclined airflow ejected obliquely downward from the two lower top corners of the vent pipe 3 is reduced, so that the inclined airflow ejected from the lower top corner of the vent pipe 3 is gradually bent upward under the drive of the upward wind field on the front and rear sides of the lower part of the vent pipe 3, so that the inclined airflow ejected from the lower top corner of the vent pipe 3 will not exert a downward thrust on the material passing through the gap between the top corner and the drum 2.

[0029] By arranging the vent pipe 3 at the lower side of the drum 2, the area of ​​the wind field formed by the hot air ejected upward from the vent pipe 3 is further increased, thereby further improving the effect of reducing the falling of materials. By reducing the size of the gap between the lower side of the vent pipe 3 and the drum 2, the probability of materials entering the gap between the lower side of the vent pipe 3 and the drum 2 is reduced.

[0030] Furthermore, if Figure 5 As shown, all the air guide holes 301 on the ventilation pipe 3 are inclined from the inside of the ventilation pipe 3 to the outside of the ventilation pipe 3 toward the side close to the lower shell 103, so as to control the hot air blown out of the ventilation pipe 3 to deflect toward the side of the lower shell 103.

[0031] In the above scheme, the air guide hole 301 is tilted from the inside of the ventilation pipe 3 to the outside of the ventilation pipe 3 toward the lower material shell 103 side, so that the wind field created by the ventilation pipe 3 is tilted toward the lower material shell 103 side. At this time, after the light and thin materials are dried by hot air, they are quickly moved to the lower material shell 103 under the action of the wind field, so that the light and thin materials after drying are quickly discharged outward, while the agglomerated or heavier materials (materials with a particle size greater than or equal to 4 mm) are less affected by the wind field, so the distance they move to the lower material shell 103 after being decelerated by the wind field is shorter, so the time for the material to be dried by hot air will not be significantly shortened.

[0032] Furthermore, if Figure 3 As shown, a support portion 302 is provided in the middle of the ventilation pipe 3, and a rotating ring 303 is rotatably connected in the drum 2. The support portion 302 is rotatably connected to the rotating ring 303, and the rotating ring 303 is used to provide support for the middle of the ventilation pipe 3.

[0033] In the above solution, by providing the support portion 302 in the middle of the ventilation pipe 3, the support force on the ventilation pipe 3 is increased to prevent the ventilation pipe 3 from bending due to gravity during use.

[0034] Furthermore, if Figure 4-Figure 6 As shown, it also includes: a partition 5, which is fixedly connected to the ventilation pipe 3, and a connecting pipe 501 is fixedly connected to one side of the ventilation pipe 3 close to the loading shell 102, and the partition 5 divides the cavity in the ventilation pipe 3 into several equal parts; a rotating head 6, which is fixedly connected to the outside of the loading shell 102, and the connecting pipe 501 penetrates the loading shell 102 and is rotatably connected to the rotating head 6, and a connecting plate 601 and circumferentially uniformly distributed air guide pipes 602 are fixedly connected in the rotating head 6, the connecting plate 601 is in contact with the partition 5, and the air guide pipe 602 is connected to the adjacent cavity in the ventilation pipe 3, and the diameter of the lower air guide pipe 602 is larger than the diameter of other air guide pipes 602.

[0035] In the above scheme, the connecting plate 601 cooperates with the partition plate 5 to divide the cavity in the ventilation pipe 3 into three equal parts, and each cavity is only connected to one side line of the triangular cross-section of the ventilation pipe 3, which is used to provide airflows of different sizes to the three cavities according to the orientation of the three faces of the ventilation pipe 3. The specific method is as follows: the rotating head 6 is provided with three air guide tubes 602, and air is supplied to the three cavities respectively through the three air guide tubes 602 on the rotating head 6. By increasing the size of the air guide tube 602 connected to the lower cavity in the ventilation pipe 3, the air supply of the lower air guide tube 602 to the lower cavity in the ventilation pipe 3 is increased, thereby increasing the amount of gas ejected downward from the ventilation pipe 3, and making the wind field formed on the front and rear sides of the lower part of the ventilation pipe 3 stronger and more stable.

[0036] Furthermore, if Figure 3 , Figure 4 and Fig. 9 As shown, the vent pipe 3 is an isosceles right triangle, the vent pipe 3 penetrates the discharge shell 103 and is rotatably connected thereto, the discharge shell 103 is fixedly connected to the second motor 7, and the output shaft of the second motor 7 is driven by the vent pipe 3 through a gear set.

[0037] In the above scheme, the second motor 7 intermittently drives the ventilation pipe 3 to rotate through the gear set. The ventilation pipe 3 rotates 60° each time, so that the triangular side lines of the ventilation pipe 3 are interchanged, thereby intermittently cleaning the materials accumulated on the upper side thereof. Moreover, because the ventilation pipe 3 is rotatably connected to the rotating head 6 through the connecting pipe 501, it will not affect the air supply of the rotating head 6 to the various cavities in the ventilation pipe 3.

[0038] Furthermore, if Figure 4 and Figure 7-Figure 9As shown, it also includes: a material spreading mechanism, which is arranged on the fixed plate 4, and is used to adjust the position where the material falls on the upper side of the drum 2, so that the material always falls downward on both sides of the upper vertex of the ventilation pipe 3, and the material spreading mechanism includes: a rotating claw 8, which is arranged on the side of the fixed plate 4 away from the drum 2, and the rotating claw 8 is provided with a curved portion, evenly distributed discharge holes 801 and evenly distributed grooves 802, the discharge hole 801 is located on the side of the curved portion of the rotating claw 8 close to the drum 2, and the groove 802 is located on the side of the curved portion of the rotating claw 8 away from the drum 2.

[0039] In the above scheme, by setting a rotating claw 8 outside the fixed plate 4, the two are regarded as fixed in this scheme, and the fixed plate 4 and the rotating claw 8 together form a bent plate that pushes the material to move upward, and then by setting a discharge hole 801 on the side of the bent part of the rotating claw 8 close to the fixed plate 4, the discharge hole 801 is increased. Fig. 9 The number of downward discharges on the upper left side of the middle, a groove 802 is provided on the side of the curved portion of the rotating claw 8 away from the fixed plate 4, to assist Fig. 9 The material on the upper right side falls downward, thereby increasing the amount of material on the rotating claw 8 falling on the left and right sides of the vent pipe 3. Because the above position is closer to the middle of the hot air flow field produced by the vent pipe 3, it is easier for the falling material and the gas ejected from the vent pipe 3 to collide with each other, so that the material is subjected to stronger hot air drying, and at the same time, the thin material is more easily blown toward the lower material shell 103 by the wind.

[0040] Furthermore, if Figure 7-Figure 9 As shown, the material spreading mechanism also includes: a baffle 9, which is slidably connected to the rotating claw 8 near the discharge hole 801, and the baffle 9 is a weight block, and the baffle 9 is matched with the adjacent discharge hole 801 for blocking.

[0041] In the above scheme, Fig. 9 For reference, by adjusting the weight of the baffle 9, the centrifugal force on the baffle 9 when it rotates with the drum 2 is smaller than the gravity of the baffle 9. Therefore, when the baffle 9 moves to the lower side or the front and rear sides of the drum 2, the baffle 9 is affected by the centrifugal force and is located near the drum 2 at the rotating claw 8. When the rotating claw 8 rotates to the upper side of the drum 2, the gravity of the baffle 9 is greater than the centrifugal force on itself, causing the baffle 9 to gradually move downward. Therefore, the baffle 9 gradually blocks the adjacent discharge holes 801 on the adjacent rotating claws 8. At this time, the rotating claw 8 is just located above the vent pipe 3, and the discharge hole 801 thereon is located on the left side of the vent pipe 3, and the groove 802 thereon is located on the right side of the vent pipe 3. By blocking the discharge hole 801, the material is prevented from falling downward from the discharge hole 801 to the weaker wind field above the vent pipe 3, thereby causing the remaining material on the rotating claw 8 to fall downward from the adjacent groove 802 to the upper right side of the vent pipe 3.

[0042] Furthermore, if Figure 7-Figure 9As shown, the spreading mechanism also includes: a fixed rod 10, fixedly connected to the fixed plate 4, the fixed rod 10 is rotatably connected to a rotating roller 11, a steel wire rope 12 is fixedly connected between the rotating roller 11 and the adjacent baffle 9, the rotating claw 8 is rotatably connected to the fixed plate 4, and a torsion spring is installed at the connection between the two, and there is damping at the rotational connection between the two.

[0043] by Fig. 9 For reference, in order to ensure that the rotating claw 8 can still sprinkle a large amount of materials downward when it rotates to the upper right side of the drum 2, it is usually necessary to make a wider curved portion for the rotating claw 8, thereby increasing the amount of materials that the rotating claw 8 can scoop up. This will result in that when the rotating claw 8 rotates to the upper right side of the drum 2, some materials are still limited by the curved portion of the rotating claw 8 and are difficult to fall downward, and it may even be necessary for the rotating claw 8 to be completely rotated to the right side of the drum 2 before this part of the materials can be completely sprinkled from the curved portion of the rotating claw 8. In order to improve the efficiency of the rotating claw 8 in sprinkling materials downward on the upper right side of the drum 2, the present invention proposes the above-mentioned solution. In the above-mentioned solution, by rotatably connecting the rotating claw 8 and the fixed plate 4, the two are reset by a torsion spring at the connection (the torsion spring is installed in the rotating connection shaft of the two, not shown in the figure), and the damping between the rotating claw 8 and the fixed plate 4 is used to slow down the rotation speed of the rotating claw 8 relative to the fixed plate 4. The wire rope 12 can be replaced by any rigid rope-like parts, such as an iron chain.

[0044] When the rotating claw 8 rotates to the upper side of the drum 2, the baffle 9 moves downward along the rotating claw 8 under the action of its own gravity. Under the dragging action of the adjacent wire rope 12, the baffle 9 rotates with the rotating roller 11 as the center and the wire rope 12 as the radius. The baffle 9 drives the rotating claw 8 to rotate slowly together. When the rotating claw 8 rotates, the groove 802 on it gradually rotates downward. When the rotating claw 8 rotates to the right side just above the vent pipe 3, the curved part on the rotating claw 8 has gradually rotated to a nearly vertical state, and the materials accumulated on the rotating claw 8 are quickly scattered downward from the groove 802 (such as Fig. 9 As shown in the figure, the material just falls into the middle of the wind field on the upper right side of the ventilation pipe 3, and the material is quickly dried by the hot wind. When the rotating claw 8 rotates to the right, the baffle 9 is reset under the action of the centrifugal force it receives and the torsion spring force on the rotating claw 8.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A drying device for chemical production, characterized in that it comprises: A mounting frame (1) having a support member (101), an upper material shell (102) and a lower material shell (103) installed thereon; A rotating drum (2) is rotatably connected between the upper material shell (102) and the lower material shell (103); the rotating drum (2) and the support member (101) are rotatably matched; the mounting frame (1) is equipped with a first motor (201); an output shaft of the first motor (201) and the rotating drum (2) are driven via a gear ring; a vent pipe (3) arranged between the upper material shell (102) and the lower material shell (103) and located inside the rotating drum (2); the vent pipe (3) is provided with evenly distributed air guide holes (301); the vent pipe (3) is used to introduce hot air into the rotating drum (2) along a cross-sectional direction thereof; The fixed plates (4) are provided in a plurality of evenly distributed portions and are fixedly connected to the rotating drum (2) and are used to bring the material on the lower side of the rotating drum (2) to the upper side thereof and to throw the material downward.

2. A drying device for chemical production according to claim 1, characterized in that: The cross section of the vent pipe (3) is triangular, which is used to increase the area of ​​the upward jet and facilitate the downward sliding of materials on the vent pipe (3).

3. A drying device for chemical production according to claim 2, characterized in that: The air guide hole (301) near the apex corner of the triangle of the ventilation pipe (3) is gradually inclined towards the apex corner of the triangle, the diameter of the air guide hole (301) in the middle of the triangular side line of the ventilation pipe (3) is larger than the diameter of the air guide hole (301) at the apex corner of the triangle of the ventilation pipe (3), and the ventilation pipe (3) is located at the lower part of the rotating drum (2).

4. A drying device for chemical production according to claim 3, characterized in that: All the air guide holes (301) on the ventilation pipe (3) are inclined from the inside of the ventilation pipe (3) to the outside of the ventilation pipe (3) towards a side close to the discharge shell (103), so as to control the hot air blown out of the ventilation pipe (3) to deflect towards the side of the discharge shell (103).

5. A drying device for chemical production according to claim 4, characterized in that: A support portion (302) is provided in the middle of the ventilation pipe (3), a rotating ring (303) is rotatably connected inside the rotating drum (2), the support portion (302) is rotatably connected to the rotating ring (303), and the rotating ring (303) is used to provide support for the middle of the ventilation pipe (3).

6. A drying device for chemical production according to claim 5, characterized in that: Also included are: A partition (5) is fixedly connected inside the ventilation pipe (3); a connecting pipe (501) is fixedly connected to one side of the ventilation pipe (3) close to the loading shell (102); and the partition (5) divides the cavity inside the ventilation pipe (3) into a plurality of equal parts; The rotating head (6) is fixedly connected to the outside of the loading shell (102); the connecting tube (501) penetrates the loading shell (102) and is rotatably connected to the rotating head (6); a connecting plate (601) and circumferentially evenly distributed air guide tubes (602) are fixedly connected to the rotating head (6); the connecting plate (601) is in contact with the partition plate (5); the air guide tube (602) is connected to the adjacent cavity in the ventilation tube (3); and the diameter of the lower air guide tube (602) is larger than the diameter of the other air guide tubes (602).

7. A drying device for chemical production according to claim 6, characterized in that: The vent pipe (3) is an isosceles right triangle, the vent pipe (3) penetrates the discharge shell (103) and is rotatably connected thereto, the discharge shell (103) is fixedly connected to a second motor (7), and an output shaft of the second motor (7) and the vent pipe (3) are driven via a gear set.

8. A drying device for chemical production according to claim 7, characterized in that: Also included are: The material spreading mechanism is arranged on the fixed plate (4) and is used to adjust the position where the material falls on the upper side of the rotating drum (2) so that the material always falls downward on both sides of the upper vertex of the ventilation pipe (3). The material spreading mechanism comprises: The rotating claw (8) is arranged on a side of the fixed plate (4) away from the rotating drum (2), and the rotating claw (8) is provided with a curved portion, evenly distributed discharge holes (801) and evenly distributed grooves (802), wherein the discharge holes (801) are located on a side of the curved portion of the rotating claw (8) close to the rotating drum (2), and the grooves (802) are located on a side of the curved portion of the rotating claw (8) away from the rotating drum (2).

9. A drying device for chemical production according to claim 8, characterized in that: The material spreading mechanism also includes: The baffle plate (9) is slidably connected to the rotating claw (8) near the discharge hole (801); the baffle plate (9) is a weight block; the baffle plate (9) is in sealing cooperation with the adjacent discharge hole (801).

10. A drying device for chemical production according to claim 9, characterized in that: The material spreading mechanism also includes: A fixed rod (10) is fixedly connected to the fixed plate (4); the fixed rod (10) is rotatably connected to a rotating roller (11); a steel wire rope (12) is fixedly connected between the rotating roller (11) and the adjacent baffle plate (9); the rotating claw (8) is rotatably connected to the fixed plate (4); a torsion spring is installed at the connection between the two, and damping exists at the rotation connection between the two.

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