Chemical fiber spinning raw material drying device capable of improving heating uniformity

Abstract

The invention relates to the technical field of raw material drying, in particular to a chemical fiber spinning raw material drying device capable of improving heating uniformity, which comprises a raw material drying box main body, a feeding hopper is arranged at the top of the raw material drying box main body, and a material distribution box is fixed at the bottom of the feeding hopper; chemical fiber spinning raw materials are quantitatively fed into the drying equipment in batches to be dried, and the chemical fiber spinning raw materials are fed into the equipment in a single-layer mode to be dried, so that it is guaranteed that each raw material particle can be fully exposed in hot air, and heat is evenly transmitted; the condition that inner particles are not heated enough or outer particles are overheated due to accumulation is avoided, and the drying consistency is improved; moreover, hot air can be in contact with the raw materials more efficiently through single-layer distribution, diffusion and evaporation of water are accelerated, and compared with the situation of multi-layer accumulation, the path of water diffusing to the surface from the interior of the raw materials and evaporating to the air from the surface is shortened through single-layer input, so that the drying speed is increased, and the drying time is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of raw material drying, in particular to a chemical fiber spinning raw material drying device capable of improving the uniformity of heating. Background Art

[0002] Chemical fiber spinning raw materials are in the form of solid particles, which are convenient to store, transport and process. They are melted, extruded and other operations are carried out through specific equipment to prepare various chemical fiber products. In order to prevent the chemical fiber spinning raw materials from being damp or hydrolyzed due to the presence of moisture, a chemical fiber spinning raw material drying device is required to dry the chemical fiber spinning raw materials. The existing announcement number is CN214384444U, which is a chemical fiber spinning raw material drying device, including a device body, a first drying tube, a hot air tube, a connecting tube, a motor and a threaded block. Two sets of vertical plates are respectively arranged inside the device body, and the two sets of vertical plates are arranged parallel to each other inside the device body. At the same time, a feed port is opened at the upper end of the device body, and two sets of discharge ports are opened at the lower end of the device body. The chemical fiber spinning raw material drying device improves work efficiency and facilitates rapid and effective drying of items; The above-mentioned raw material drying device further improves the drying efficiency of the equipment by secondary drying of the raw materials. However, in the actual drying process, the raw materials are put into the drying equipment, and the accumulation of the raw materials will make the gaps between the particles smaller, making it difficult for hot air to penetrate the accumulation layer to reach the internal raw materials, so that the internal raw materials cannot fully contact the hot air, resulting in uneven heating. In addition, the accumulated outer layer of raw materials will form an insulating layer, which further hinders the transfer of hot air to the inside, greatly reducing the drying speed of the internal raw materials. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the problem of uneven heating of chemical fiber spinning raw materials in the prior art.

[0004] In order to solve the above technical problems, the present invention provides a chemical fiber spinning raw material drying device with improved heating uniformity, the device comprising: a raw material drying box main body, a feed hopper is arranged on the top of the raw material drying box main body, a distribution box is fixed at the bottom of the feed hopper, a feeding roller is rotatably arranged inside the distribution box, a drying box 1 is arranged at the top of the raw material drying box main body, a drying box 1 has a drying cavity inside, the inner bottom wall of the drying box 1 is inclined downward, the feed end of the drying box 1 is connected with the discharge end of the distribution box, a plurality of drying boxes 2 are arranged below the drying box 1, the drying box 2 has a drying cavity inside, the discharge end of the drying box 1 is connected with the feed end of the adjacent drying box 2 below, the discharge end between the two adjacent drying boxes 2 is connected with the feed end, a distribution plate is arranged at the bottom end of the drying box 2, the distribution plate is inclined downward, a spring plate is arranged at one end of the distribution plate, and the spring plate is inclined below the feed end of the drying box 2.

[0005] In one embodiment of the present invention, both side walls and the top of the raw material drying box body are connected with hot air ducts. The hot air ducts located on the top of the raw material drying box body are used for discharging hot air, and the hot air ducts located on both side walls of the raw material drying box body are used for injecting hot air.

[0006] In one embodiment of the present invention, a feed pipe is fixed on the top of a distribution box, and the distribution box is connected with a feed hopper through the feed pipe. A discharge pipe is fixed on the bottom of the distribution box, and the discharge pipe extends into the interior of the main body of the raw material drying box. An injection pipe is fixed on the bottom of the discharge pipe. The width of the discharge pipe is greater than the width of the injection pipe. The injection pipe is arranged downward at an angle, and the injection pipe is connected with a feed end of a drying box. A fixed feeding groove is provided on the outer wall of a feeding roller, and a motor is installed on both sides of the distribution box. The rotating shaft of the motor extends into the distribution box and is fixedly connected to the rotating shaft on one side of the feeding roller.

[0007] In one embodiment of the present invention, the size of the feed pipe matches the size of the discharge pipe, the metering grooves are evenly spaced on the outer wall of the feeding roller, and the cross-section of the metering grooves is fan-shaped.

[0008] In one embodiment of the present invention, a material guide pipe is fixed to the discharge ends of drying box 1 and drying box 2, the discharge end of drying box 1 is connected to the feed end of the lower drying box 2 through the material guide pipe, and two adjacent drying boxes 2 are connected through the material guide pipe.

[0009] In one embodiment of the present invention, connecting side plates are fixed on both sides of the dividing plate, and one side of the connecting side plate close to the discharge end is hinged to the inner wall of the second drying box. The dividing plate is hinged in the second drying box through the two connecting side plates, and the two sides of the top of the spring plate are hinged to the two side walls inside the second drying box. The connecting side plates are hinged on both sides of the spring plate, and the dividing plate is hinged to the spring plate through the connecting side plates.

[0010] In one embodiment of the present invention, an eccentric column is provided on the back of the spring plate, and the eccentric column is rotatably arranged inside the second drying box. A second motor is installed on one side wall of the second drying box. The second motor is located on one side of the rotating shaft of the eccentric column, and the rotating shaft of the second motor extends to the interior of the second drying box and is fixedly connected to the rotating shaft on one side of the eccentric column. A plurality of reset springs are fixed on the bottom of the dividing plate, and the bottom of the reset spring is fixedly connected to the inner bottom wall of the second drying box. The reset spring is located on one side of the connection between the dividing plate and the spring plate.

[0011] In one embodiment of the present invention, an air injection bottom box is fixed to the bottom of the dividing plate, and an air injection pipe is connected to the middle position of the bottom of the air injection bottom box.

[0012] In one embodiment of the present invention, a plurality of grooves are evenly spaced on the top of the dividing plate, an air guide cavity is provided inside the dividing plate, the air guide cavity is connected with the grooves, a plurality of air guide cavities are evenly spaced inside each groove, a mesh plate is provided inside the air guide cavity, the top surface of the mesh plate and the groove are in the same plane, an air injection groove is provided inside the air injection bottom box, and the air injection bottom box is connected with the air guide cavity through the air injection groove.

[0013] In one embodiment of the present invention, top grooves are provided on the tops of the first drying box and the second drying box, and side grooves are provided on both sides of the first drying box and the second drying box.

[0014] The above technical solution of the present invention has the following advantages compared with the prior art: 1. The device for drying chemical fiber spinning raw materials for improving the uniformity of heating described in the present invention, by quantitatively and batchwise putting chemical fiber spinning raw materials into the drying equipment for drying, and putting the chemical fiber spinning raw materials into the equipment in a single layer for drying, not only ensures that each raw material particle can be fully exposed to the hot air, so that the heat is evenly transferred, and avoids the situation where the internal particles are insufficiently heated or the outer particles are overheated due to stacking, thereby improving the consistency of drying; moreover, the single-layer distribution can make the hot air contact with the raw material more efficiently, accelerate the diffusion and evaporation of moisture, and compared with the situation of multi-layer stacking, the single-layer input shortens the path of moisture diffusion from the inside of the raw material to the surface and evaporation from the surface to the air, thereby improving the drying speed and reducing the drying time.

[0015] 2. The present invention discloses a drying device for chemical fiber spinning raw materials for improving the uniformity of heating. By arranging a spring plate at the feed inlet of drying box 2, when the raw materials enter drying box 2 from the upper inclined surface, the spring plate is at the landing point of the raw materials, and the raw materials directly contact the inclined spring plate. The spring plate is used to rebound the raw materials, thereby changing the movement direction of the raw materials, so that the raw materials can be quickly dumped to the next inclined surface, thereby avoiding the accumulation of raw materials at the landing point and affecting the heating surface of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0017] Figure 1 It is the overall structural diagram of the present invention; Figure 2 The overall structure of the present invention is shown in cross-section. Figure 1 ; Figure 3 The overall structure of the present invention is shown in cross-section. Figure 2 ; Figure 4 is a cross-sectional view of the feed hopper structure of the present invention; Figure 5is a front structural cross-sectional view of the present invention; Figure 6 The drying box structure of the present invention is a cross-sectional view Figure 1 ; Figure 7 The drying box structure of the present invention is a cross-sectional view Figure 2 ; Figure 8 This is a front view of the structure of the drying box of the present invention; Fig. 9 This is a cross-sectional view of the drying box of the present invention when viewed from above; Fig.10 It is a partial structural diagram of the spring plate and the material dividing plate of the present invention; Fig.11 This is a disassembled diagram of the material dividing plate and the gas injection bottom box of the present invention; Fig.12 It is a structural breakdown diagram of the mesh plate and the material dividing plate of the present invention.

[0018] Explanation of the reference numerals in the drawings in the specification: 1. Raw material drying box body; 2. Feed hopper; 21. Distribution box; 22. Motor 1; 23. Feeding roller; 24. Fixed material trough; 25. Feed pipe; 26. Injection pipe; 27. Discharge pipe; 3. Hot air duct; 5. Drying box 1; 6. Material guide pipe; 7. Drying box 2; 71. Distribution plate; 711. Groove; 712. Air guide cavity; 713. Mesh plate; 714. Air injection groove; 72. Spring plate; 73. Eccentric column; 74. Connecting side plate; 75. Motor 2; 76. Air injection bottom box; 77. Air injection pipe; 78. Reset spring; 8. Top groove; 81. Side groove. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0020] Reference Figure 1-Figure 12As shown, a chemical fiber spinning raw material drying device for improving the uniformity of heating of the present invention comprises: a raw material drying box body 1, a feed hopper 2 is arranged on the top of the raw material drying box body 1, a material distribution box 21 is fixed at the bottom of the feed hopper 2, a feeding roller 23 is rotatably arranged inside the material distribution box 21, a drying box 5 is arranged on the top of the raw material drying box body 1, a drying cavity is provided inside the drying box 5, the inner bottom wall of the drying box 5 is inclined downward, the feed end of the drying box 5 is connected with the discharge end of the distribution box 21, and the drying A plurality of drying boxes 2 7 are arranged below the box 1 5, and the drying box 2 7 has a drying cavity therein. The discharge end of the drying box 1 5 is connected with the feed end of the adjacent drying box 2 7 below, and the discharge end between two adjacent drying boxes 2 7 is connected with the feed end. The vertical projections of the drying box 1 5 and the drying box 2 7 from top to bottom are in the same plane. A dividing plate 71 is arranged at the bottom end of the drying box 2 7, and the dividing plate 71 is arranged downwardly in an inclined manner. A spring plate 72 is arranged at one end of the dividing plate 71, and the spring plate 72 is arranged obliquely below the feed end of the drying box 2 7. The two side walls and the top of the main body 1 of the raw material drying box are connected with hot air pipes 3. The hot air pipes 3 located at the top of the main body 1 of the raw material drying box are used for exhausting hot air, and the hot air pipes 3 located on the two side walls of the main body 1 of the raw material drying box are used for injecting hot air. A material guide pipe 6 is fixed to the discharge ends of the drying box 1 5 and the drying box 2 7 . The discharge end of the drying box 1 5 is connected to the feed end of the drying box 2 7 below through the material guide pipe 6 . Two adjacent drying boxes 2 7 are connected through the material guide pipe 6 .

[0021] First, the hot air injection pipe is connected to the hot air duct 3 on both side walls of the raw material drying box body 1, and then the hot air discharge pipe is connected to the hot air duct 3 on the top of the raw material drying box body 1, and hot air is injected from both sides of the raw material drying box body 1 through the hot air duct 3, and then part of the hot air is discharged from the hot air duct 3 on the top of the raw material drying box body 1 in coordination with the hot air duct 3, so that the hot air circulates in the raw material drying box body 1; Afterwards, the chemical fiber spinning raw materials are put into the feed hopper 2, and the chemical fiber spinning raw materials enter the distribution box 21. The feeding roller 23 intermittently and quantitatively puts the chemical fiber spinning raw materials into the drying box 5 in the raw material drying box body 1, and the chemical fiber spinning raw materials are continuously introduced into the drying box 5 from the material port at the bottom of the distribution box 21. Since the inner bottom wall of the drying box 5 is designed to be inclined downward, the raw materials entering the drying box 5 each time roll toward the discharge end of the drying box 5. The chemical fiber spinning raw materials put into the drying box 5 are affected by the downward inclined inner bottom wall and will not only enter in the form of a single layer, but also Able to roll continuously; when the chemical fiber spinning raw materials in the drying box 1 5 enter the adjacent drying box 2 7 through the guide pipe 6, they directly fall onto the dividing plate 71 in the drying box 2 7, and under the action of the inclined inner bottom wall of the dividing plate 71, the raw materials roll toward the discharge end of the drying box 2 7, and the chemical fiber spinning raw materials put into the drying box 2 7 are still laid out in a single layer and continue to roll; the inner bottom walls of the drying box 1 5 and the dividing plate 71 are designed to be inclined downward, ensuring that the chemical fiber spinning raw materials can be laid out in a single layer and continue to roll when entering the drying box 1 5 and the drying box 2 7; It should be noted that the injection pipe 26 is designed to be tilted downward, and the tilt direction of the injection pipe 26 is the same as the tilt direction of the drying box 5, which ensures that the raw materials entering the drying box 5 through the injection pipe 26 can be tilted into the drying box 5, and the raw materials can continue to roll along the tilt direction of the bottom wall of the drying box 5, preventing the material from accumulating at the feeding end of the drying box 5 and causing blockage. The drying box 1 5 is connected end to end with the drying box 2 7 adjacent to it, and the two adjacent drying boxes 2 7 are adjacent to each other at the end. The drying box 1 5 and the plurality of drying boxes 2 7 form a continuous drying channel for drying the raw materials. When the raw material enters the drying box 2 7 from the discharge end of the drying box 1 5 or enters the drying box 2 7 below the adjacent drying box 2 7 from the discharge end of the drying box 2 7, the raw material is poured from one inclined surface to another inclined surface. The raw material has inertia. After falling on the inclined surface, due to the effect of inertia, the raw material has a tendency to maintain the original state of motion, resulting in the raw material temporarily stopping at the location of the landing point. After staying for a period of time, it will slide down along the inclined surface. Since the raw material is continuously poured onto the next inclined surface, it causes excessive accumulation of raw materials at the landing point. For this reason, a spring plate 7 is set at the feed inlet position of the drying box 2 7. 2. When the raw material enters the drying box 2 7 from the upper inclined plane, the raw material directly contacts the inclined elastic plate 72 because the elastic plate 72 is at the landing point of the raw material. The elastic plate 72 rebounds the raw material to change the movement direction of the raw material, so that the raw material can continue to roll quickly along the inclined direction of the inclined plane when it falls into the next inclined plane, preventing the raw material from pausing at the landing point and causing the problem of material accumulation. In addition, the material falls along the inclined plane in a rolling manner, that is, the material will continuously turn over when moving, which can effectively improve the uniform contact between the material and the hot air and improve the heat exchange efficiency; By quantitatively placing chemical fiber spinning raw materials into the drying equipment in batches for drying, and placing the chemical fiber spinning raw materials into the equipment for drying in a single layer, it not only ensures that each raw material particle can be fully exposed to the hot air and the heat is evenly transferred, avoiding the situation where the internal particles are insufficiently heated or the outer particles are overheated due to stacking, thereby improving the consistency of drying; moreover, the single-layer distribution enables the hot air to contact the raw materials more efficiently, accelerating the diffusion and evaporation of moisture. Compared with the situation of multi-layer stacking, the single-layer input shortens the path of moisture diffusion from the inside of the raw material to the surface and evaporation from the surface to the air, thereby increasing the drying speed and reducing the drying time.

[0022] Reference Figure 1-Figure 12 As shown, a feed pipe 25 is fixed on the top of the distribution box 21, and the distribution box 21 is connected with the feed hopper 2 through the feed pipe 25. A discharge pipe 27 is fixed on the bottom of the distribution box 21, and the discharge pipe 27 extends into the interior of the raw material drying box body 1, and an injection pipe 26 is fixed to the bottom of the discharge pipe 27. The width of the discharge pipe 27 is greater than the width of the injection pipe 26. The injection pipe 26 is arranged downwardly at an angle, and the injection pipe 26 is connected with the feed end of the drying box 5. A fixed feed groove 24 is provided on the outer wall of the feeding roller 23, and a motor 22 is installed on both sides of the distribution box 21. The rotating shaft of the motor 22 extends into the distribution box 21 and is fixedly connected to the rotating shaft on one side of the feeding roller 23; the size of the feed pipe 25 matches the size of the discharge pipe 27, and the fixed feed grooves 24 are evenly distributed on the outer wall of the feeding roller 23, and the cross-section of the fixed feed grooves 24 is fan-shaped.

[0023] The chemical fiber spinning raw materials are put into the feed hopper 2 in advance, and a plurality of fixed feed slots 24 are provided outside the feeding roller 23. Figure 5 As shown, the maximum opening width of the fixed material groove 24 is the same as the inner diameter of the feed pipe 25 and the discharge pipe 27. The feed pipe 25, the fixed material groove 24, the discharge pipe 27 and the injection pipe 26 are all designed as long material openings, so that the raw materials can be put into the equipment in a wider state; When the chemical fiber spinning raw materials are input, the motor 22 is started to drive the feeding roller 23 to rotate. When one of the fixed material grooves 24 is gradually aligned with the feeding pipe 25, the chemical fiber spinning raw materials in the feeding hopper 2 gradually enter the fixed material groove 24, and the feeding roller 23 continues to rotate. Under the thrust of the inner wall of the feeding pipe 25, the raw materials that have not entered the fixed material groove 24 are pushed out. When the fixed material groove 24 storing the raw materials turns to the position of the discharge pipe 27, the raw materials are input into the discharge pipe 27 in the process of gradually facing the discharge pipe 27. Since the width of the discharge pipe 27 is greater than the injection pipe 26, when the raw materials are discharged into the drying box 5 from the injection pipe 26, the narrower diameter of the injection pipe 26 reduces the thickness of the raw material layer, so that the raw materials are poured into the drying box 5 in a waterfall-like manner and slide along the inclined direction of the drying box 5, the input of the chemical fiber spinning raw materials can be completed; The feeding roller 23 rotates to align the fixed material trough 24 with the feeding pipe 25 to replenish the raw materials. The feeding roller 23 rotates to align the fixed material trough 24 with the discharge pipe 27 to input the raw materials. After inputting the raw materials once, it can be paused for a period of time to allow the raw materials to have enough sliding time in the drying box 1 5 and the drying box 2 7 before the next feeding. Intermittent feeding can prevent excessive feeding of raw materials, which causes the raw materials to pile up before sliding from the drying box 1 5 into the adjacent drying box 2 7.

[0024] Reference Figure 1-Figure 12 As shown, connecting side plates 74 are fixed on both sides of the dividing plate 71, and one side of the connecting side plate 74 close to the discharge end is hinged to the inner side wall of the drying box 2 7, and the dividing plate 71 is hinged to the drying box 2 7 through the two connecting side plates 74. The two sides of the top of the spring plate 72 are hinged to the two side walls inside the drying box 2 7, and the connecting side plates 74 are hingedly set on both sides of the spring plate 72. The dividing plate 71 is hinged to the spring plate 72 through the connecting side plates 74; an eccentric column 73 is set on the back of the spring plate 72, and the eccentric column 73 is rotatably set inside the drying box 2 7. A motor 2 75 is installed on one side wall of 7, and the motor 2 75 is located on one side of the rotating shaft of the eccentric column 73, and the rotating shaft of the motor 2 75 extends to the interior of the drying box 2 7 and is fixedly connected to the rotating shaft on one side of the eccentric column 73, and a plurality of reset springs 78 are fixed to the bottom of the dividing plate 71, and the bottom of the reset spring 78 is fixedly connected to the inner bottom wall of the drying box 2 7, and the reset spring 78 is located on one side of the connection between the dividing plate 71 and the spring plate 72; an air injection bottom box 76 is fixed to the bottom of the dividing plate 71, and an air injection pipe 77 is connected to the middle position of the bottom of the air injection bottom box 76.

[0025] When the device is in use, the motor 2 75 is started, and the motor 2 75 drives the eccentric column 73 to rotate. When the eccentric column 73 contacts the back of the spring plate 72, the spring plate 72 is pushed outward to flip it upward by a certain angle. The spring plate 72 drives the hinged material dividing plate 71 to tilt. The tilting of the material dividing plate 71 will pull the return spring 78 at the bottom to extend. When the eccentric column 73 is away from the spring plate 72, the return spring 78 uses its own elastic force to pull the material dividing plate 71 down to reset it. The material dividing plate 71 will pull the hinged spring plate 72 to reset. The eccentric column 73 is used to push the spring plate 72 and the material dividing plate 71, and the return spring 78 cooperates to reset the spring plate 72 and the material dividing plate 71. In this way, the spring plate 72 and the material dividing plate 71 can be continuously shaken by reciprocating. When the raw materials enter from the feeding port at the top of the drying box 2 7, the raw materials directly fall on the spring plate 72, and the spring plate 72 rebounds the raw materials to change the movement direction of the raw materials, so that they can be quickly dumped onto the dividing plate 71 in the drying box 2 7, so as to avoid the accumulation of raw materials at the landing point. At the same time, the raw materials falling on the dividing plate 71 are affected by the shaking dividing plate 71, which will not only slide down quickly, but also cause the raw materials themselves to shake and turn over, so as to better contact with the hot air and increase the heating area.

[0026] Reference Figure 1-Figure 12 As shown, a plurality of grooves 711 are provided at equal intervals on the top of the dividing plate 71, an air guide cavity 712 is provided inside the dividing plate 71, and the air guide cavity 712 is communicated with the groove 711, and a plurality of air guide cavities 712 are provided at equal intervals inside each groove 711, a mesh plate 713 is provided inside the air guide cavity 712, and the top surface of the mesh plate 713 is in the same plane as the groove 711, and an air injection groove 714 is provided inside the air injection bottom box 76, and the air injection bottom box 76 is communicated with the air guide cavity 712 through the air injection groove 714; A top groove 8 is provided on the top of the drying box 1 5 and the drying box 2 7 , and a side groove 81 is provided on both sides of the drying box 1 5 and the drying box 2 7 .

[0027] A hot air pipeline is pre-connected to the air injection pipe 77, and hot air is injected into the air injection bottom box 76 through the air injection pipe 77. The air injection bottom box 76 guides the hot air into the air guide cavity 712 through the air injection groove 714, and then the hot air is discharged into the groove 711 by the air guide cavity 712. Each raw material particle entering the groove 711 is directly blown by the hot air, so that the raw material is better heated; When the chemical fiber spinning raw material is rebounded by the spring plate 72 and falls onto the dividing plate 71, the raw material slides into the grooves 711 respectively because the dividing plate 71 is provided with a plurality of grooves 711. Under the shaking action of the dividing plate 71, the raw material in the grooves 711 is continuously turned over, and the hot air is directly blown to the raw material entering the grooves 711, so that the heating uniformity of the raw material is improved. Among them, a mesh plate 713 is provided in the air guide cavity 712, and the mesh plate 713 can block the material and prevent the material from entering the air guide cavity 712; The opening of the top groove 8 and the side groove 81 can ensure that the hot air can better enter the drying box 1 5 and the drying box 2 7, and ensure that the hot air can contact the raw materials in the drying box 1 5 and the drying box 2 7.

[0028] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A drying device for chemical fiber spinning raw materials for improving the uniformity of heating, characterized in that: The device comprises: a raw material drying box body (1), a feed hopper (2) is arranged on the top of the raw material drying box body (1), a material distribution box (21) is fixed at the bottom of the feed hopper (2), a feeding roller (23) is rotatably arranged inside the material distribution box (21), a drying box 1 (5) is arranged at the top of the raw material drying box body (1), a drying cavity is provided inside the drying box 1 (5), the inner bottom wall of the drying box 1 (5) is arranged to be inclined downward, the feed end of the drying box 1 (5) is connected to the discharge end of the material distribution box (21), and the drying box A plurality of drying boxes (7) are arranged below the drying box (5), and a drying cavity is provided inside the drying box (7). The discharge end of the drying box (5) is connected to the feed end of the adjacent drying box (7) below, and the discharge end between two adjacent drying boxes (7) is connected to the feed end. A dividing plate (71) is arranged at the bottom end of the drying box (7), and the dividing plate (71) is arranged to be inclined downward. A spring plate (72) is arranged at one end of the dividing plate (71), and the spring plate (72) is arranged to be inclined below the feed end of the drying box (7).

2. The drying device for chemical fiber spinning raw materials for improving the uniformity of heating according to claim 1, characterized in that: Both side walls and the top of the raw material drying box body (1) are connected with hot air ducts (3); the hot air ducts (3) located at the top of the raw material drying box body (1) are used for discharging hot air, and the hot air ducts (3) located at both side walls of the raw material drying box body (1) are used for injecting hot air.

3. The drying device for chemical fiber spinning raw materials for improving the uniformity of heating according to claim 2, characterized in that: A feed pipe (25) is fixed on the top of the material distribution box (21), and the material distribution box (21) is connected to the feed hopper (2) through the feed pipe (25). A discharge pipe (27) is fixed on the bottom of the material distribution box (21), and the discharge pipe (27) extends into the interior of the raw material drying box body (1). A filling pipe (26) is fixed on the bottom of the discharge pipe (27). The width of the discharge pipe (27) is greater than the width of the filling pipe (26). The filling pipe (26) is arranged to be inclined downward, and the filling pipe (26) is connected to the feed end of the drying box (5). A fixed material groove (24) is provided on the outer wall of the feeding roller (23). Motors (22) are installed on both sides of the material distribution box (21). The rotating shaft of the motor (22) extends into the material distribution box (21) and is fixedly connected to the rotating shaft on one side of the feeding roller (23).

4. The drying device for chemical fiber spinning raw materials for improving the uniformity of heating according to claim 3, characterized in that: The size of the feed pipe (25) matches the size of the discharge pipe (27), the fixed material grooves (24) are evenly spaced on the outer wall of the feeding roller (23), and the cross section of the fixed material grooves (24) is designed to be fan-shaped.

5. The drying device for chemical fiber spinning raw materials for improving the uniformity of heating according to claim 4, characterized in that: A material guide pipe (6) is fixed to the discharge ends of the drying box one (5) and the drying box two (7); the discharge end of the drying box one (5) is connected to the feed end of the drying box two (7) below via the material guide pipe (6); and two adjacent drying boxes two (7) are connected via the material guide pipe (6).

6. The drying device for chemical fiber spinning raw materials for improving the uniformity of heating according to claim 5, characterized in that: Connecting side plates (74) are fixed on both sides of the material distribution plate (71), and one side of the connecting side plate (74) close to the material discharge end is hinged to the inner side wall of the second drying box (7). The material distribution plate (71) is hinged to the inside of the second drying box (7) through the two connecting side plates (74). Both sides of the top of the spring plate (72) are hinged to the inner side walls of the second drying box (7). The connecting side plates (74) are hinged to both sides of the spring plate (72), and the material distribution plate (71) is hinged to the spring plate (72) through the connecting side plates (74).

7. The drying device for chemical fiber spinning raw materials for improving the uniformity of heating according to claim 6, characterized in that: An eccentric column (73) is arranged at the back of the spring plate (72), and the eccentric column (73) is rotatably arranged inside the second drying box (7). A second motor (75) is installed on a side wall of the second drying box (7), and the second motor (75) is located on one side of the rotating shaft of the eccentric column (73). The rotating shaft of the second motor (75) extends into the interior of the second drying box (7) and is fixedly connected to the rotating shaft on one side of the eccentric column (73). A plurality of return springs (78) are fixedly arranged at the bottom of the material distribution plate (71), and the bottom of the return spring (78) is fixedly connected to the inner bottom wall of the second drying box (7). The return spring (78) is located on one side of the connection between the material distribution plate (71) and the spring plate (72).

8. The drying device for chemical fiber spinning raw materials for improving the uniformity of heating according to claim 7, characterized in that: An air injection bottom box (76) is fixed to the bottom of the dividing plate (71), and an air injection pipe (77) is connected to the middle position of the bottom of the air injection bottom box (76).

9. The drying device for chemical fiber spinning raw materials for improving the uniformity of heating according to claim 8, characterized in that: A plurality of grooves (711) are formed at equal intervals on the top of the dividing plate (71), an air guide cavity (712) is formed inside the dividing plate (71), the air guide cavity (712) is connected to the grooves (711), a plurality of air guide cavities (712) are formed at equal intervals inside each groove (711), a mesh plate (713) is formed inside the air guide cavity (712), the top surface of the mesh plate (713) and the grooves (711) are in the same plane, an air injection groove (714) is formed inside the air injection bottom box (76), and the air injection bottom box (76) is connected to the air guide cavity (712) via the air injection groove (714).

10. The drying device for chemical fiber spinning raw materials for improving the uniformity of heating according to claim 9, characterized in that: The tops of the drying box 1 (5) and the drying box 2 (7) are both provided with top grooves (8), and the sides of the drying box 1 (5) and the drying box 2 (7) are both provided with side grooves (81).

Images