A drying device and process for preparing acid particle indigo blue

Abstract

The present invention relates to the technical field of acid particle indigo preparation, specifically a drying device and process for acid particle indigo preparation. The drying device includes an installation frame, and a drying tower is fixedly installed inside the installation frame. An atomizer is arranged at the top of the drying tower, and discharge ports are arranged at the bottom and side of the drying tower. The discharge port on the side is connected to an external cyclone separator. A flow disturbance mechanism is arranged inside the drying tower, and an auxiliary mechanism for preheating the solution is arranged at the top of the drying tower. A hot air inlet is arranged on the auxiliary mechanism. Through the setting of the flow disturbance mechanism, during the drying process of the solution, the downward falling droplets are disturbed and blocked, increasing the residence time of the droplets inside the drying tower, making the drying degree of the dried and formed particles higher, and improving the preparation efficiency of the particles.

Description

Technical Field

[0001] The present invention relates to the technical field of the preparation of acid particle indigo, and in particular to a drying device and process for the preparation of acid particle indigo. Background Art

[0002] When preparing acid particle indigo, raw materials are first prepared for a condensation reaction to generate an intermediate product, and then the intermediate product is successively subjected to a sulfonation reaction and a neutralization reaction to obtain a reaction solution. The reaction solution is filtered and washed to obtain a relatively pure acid particle indigo solution, and the acid particle indigo solution is dried to finally obtain acid particle indigo.

[0003] When drying the acid particle indigo solution, there are various drying methods, and spray drying is one of them. Spray drying is a method of dispersing a liquid material into fine droplets through an atomizer, and then contacting with hot air to complete the evaporation of water instantly, so that the material is dried into a powder or granular product.

[0004] When preparing acid particle indigo by spray drying, since the spray directly drops downward after entering the drying tower, in order to ensure that the spray can be dried as much as possible inside the drying tower, it is necessary to transport hot air with a higher temperature and a sufficient amount inside the drying tower to ensure that the spray entering the drying tower is quickly dried into particles. This will cause part of the hot air not to be fully utilized, and the heat loss will also occur during the process of transporting the hot air to the inside of the drying tower because the conveying pipeline is exposed to the air, resulting in waste of energy; the spray directly drops downward after entering the drying tower, and the insufficient residence time of the spray inside the drying tower will also cause the spray to be not thoroughly dried, resulting in the low drying degree of the formed particles, and secondary drying is still required, which affects the preparation efficiency of acid particle indigo. Summary of the Invention

[0005] Therefore, the present invention provides a drying device and process for the preparation of acid particle indigo, which solve the above technical problems.

[0006] A drying device for the preparation of acid particle indigo provided by the present invention includes an installation frame, a drying tower is fixedly installed inside the installation frame, an atomizer is arranged at the top of the drying tower, discharge ports are arranged at the bottom and side of the drying tower, the discharge port on the side is connected to an external cyclone separator, a flow disturbing mechanism is arranged inside the drying tower, an auxiliary mechanism for preheating the solution is arranged at the top of the drying tower, and a hot air inlet is arranged on the auxiliary mechanism.

[0007] The spoiler mechanism includes two symmetrically arranged support crossbars that are fixedly connected to the inner wall of the drying tower, with the upper and lower ones. A fixed column coaxial with the drying tower is fixedly connected to the two support crossbars. Three spoiler members are evenly distributed up and down on the fixed column. A first adjusting member for adjusting the circumferential coverage area of the spoiler member is provided on the fixed column and the spoiler member. A second adjusting member for adjusting the inclination angle of the spoiler member is provided on the first adjusting member, the fixed column, and the support crossbar.

[0008] The spoiler member includes a plurality of hinge seats that are fixedly connected to the fixed column and are distributed in a circular pattern. An installation seat is hinged to the hinge seat. A plurality of blocking blades are evenly distributed from top to bottom and are hinged to the installation seat. A limiting chute is provided on the surface of each blocking blade away from the installation seat. A linkage column is fixedly connected to the surface of each blocking blade close to the installation seat. The plurality of blocking blades distributed up and down are opened in sequence from bottom to top to jointly form a fan-shaped spoiler area.

[0009] According to an embodiment of the present invention, the auxiliary mechanism includes a fixed shell fixedly connected to the top of the drying tower. A hot air inlet is provided on the left side of the fixed shell. A solution containing cavity is fixedly connected inside the fixed shell. A hot air circulation cavity is formed between the solution containing cavity and the inner wall of the fixed shell. The left side of the fixed shell is fixedly and penetratingly connected to the hot air inlet. The right side of the fixed shell is fixedly and penetratingly connected to a hot air distributor. One end of the hot air distributor away from the fixed shell is fixedly and penetratingly connected to the upper surface of the drying tower. A reserved box is provided below the fixed shell. The bottom end of the reserved box is fixedly and penetratingly connected to an atomizer.

[0010] According to an embodiment of the present invention, an inverted V-shaped partition plate is provided on the inner wall of the bottom end of the solution containing cavity. A solution feed pipe is provided on the upper surface of the solution containing cavity. The top end of the solution feed pipe penetrates the outer surface of the fixed shell.

[0011] According to an embodiment of the present invention, the bottom end of the solution containing cavity is connected to the upper surface of the reserved box through a connecting pipe. An electronic valve is provided on the connecting pipe. The electronic valve controls the on-off between the solution containing cavity and the reserved box.

[0012] According to an embodiment of the present invention, the first adjusting member includes a mounting disc fixedly connected to the outer circumferential surface of the fixed column. The mounting disc is installed corresponding to the spoiler member. A plurality of telescopic connecting rods are embedded and connected to the outer circumferential surface of the mounting disc. The lower surface of the telescopic end of the telescopic connecting rod is ball-hinged to an L-shaped connecting rod. The horizontal section of the L-shaped connecting rod is fixedly connected to the lower surface of the corresponding bottommost blocking blade. Drive shafts are rotatably connected to the outer circumferential surface of the fixed column and below the mounting disc.

[0013] According to an embodiment of the present invention, internal gear rings are provided on both the upper and lower surfaces of the mounting disc. The transmission shaft meshes with the internal gear ring on its corresponding mounting disc through gears. On the upper surface of the bottom support cross bar, a driving motor is fixedly installed through a motor base. A toothed disc is fixedly connected to the output shaft of the driving motor. The toothed disc meshes with the bottom end of the bottom transmission shaft through gears.

[0014] According to an embodiment of the present invention, the vertical section of the L-shaped connecting rod is telescopically arranged, and the vertical section and the horizontal section of the L-shaped connecting rod are hinged.

[0015] According to an embodiment of the present invention, the second adjusting member includes a connecting sliding seat that is slidably connected up and down on the outer circumferential surface of the fixed column and is located below the corresponding spoiler. The lower surface of the lower support cross bar is fixedly connected with an electric telescopic rod. The inside of the fixed column is hollow. The telescopic end of the electric telescopic rod penetrates the inside of the fixed column. The connecting sliding seat penetrates into the inside of the fixed column and is fixedly connected with the telescopic end of the electric telescopic rod. Rectangular through holes are opened on the circumferential surface of the fixed column at the positions corresponding to the penetration of the connecting sliding seat. A plurality of linkage rods arranged in a circumferential array are hinged on the connecting sliding seat.

[0016] According to an embodiment of the present invention, the plurality of linkage rods correspond one by one to the plurality of mounting seats on their corresponding spoilers. The end of the linkage rod far from the connecting sliding seat is hinged to the lower surface of its corresponding mounting seat.

[0017] According to an embodiment of the present invention, the use process of using the above drying equipment to dry and prepare acid particle indigo includes the following steps: S1. First, hot air is generated from the hot air inlet and continuously conveyed into the drying tower.

[0018] S2. Then, an external feeding mechanism conveys the acid particle indigo solution into the auxiliary mechanism, and the solution is preheated through the auxiliary mechanism.

[0019] S3. The acid particle indigo solution is conveyed into the atomizer through the auxiliary mechanism, and the atomizer disperses the solution into extremely small diameter droplets and sprays them inside the drying tower.

[0020] S4. When the droplets fall inside the drying tower and continue to fall downward, when passing through the spoiler mechanism, the spoiler mechanism blocks the droplets falling downward, so that the droplets can stay inside the drying tower for a longer time and fully contact with the hot air.

[0021] S5. Under the action of the hot air, the temperature of the droplets gradually rises, and the moisture is continuously evaporated, and finally dry particles are formed.

[0022] S6. The external cyclone separator sucks out the particles through the side discharge port, and after separating from the hot air, they are collected uniformly. Some heavier particles fall out through the discharge port at the bottom of the drying tower.

[0023] Applying the technical solution of the present invention: 1. Through the setting of the flow disturbing mechanism, during the drying process of the solution, the downward falling droplets are disturbed and blocked, increasing the residence time of the droplets inside, making the dried particles more thoroughly dried, and improving the preparation efficiency of the particles.

[0024] 2. Through the setting of the flow disturbing member, the coverage area and inclination angle of the flow disturbing member can be adjusted according to the internal spraying amount, so as to adjust the flow disturbing and blocking duration of the droplets, avoiding excessive blocking degree resulting in droplet accumulation and affecting the drying effect of the droplets.

[0025] 3. Through the setting of the auxiliary mechanism, before the hot air enters the drying tower, the hot air can pass through the solution to be atomized. On the one hand, it can reduce the conveying distance exposed to the air during the conveying process of the hot air into the drying tower, recover the waste heat of the generated loss, and on the other hand, preheat the solution, which can improve the subsequent drying efficiency of the solution. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0027] Figure 1 It is a three-dimensional structural schematic diagram of a drying device for preparing acid particle indigo provided by the present invention.

[0028] Figure 2 It is a partial cross-sectional schematic diagram of a drying device for preparing acid particle indigo provided by the present invention.

[0029] Figure 3 It is a three-dimensional structural schematic diagram of the auxiliary mechanism provided by the present invention.

[0030] Figure 4 It is a three-dimensional structural schematic diagram of the flow disturbing mechanism provided by the present invention.

[0031] Figure 5 It is a three-dimensional structural schematic diagram of the flow disturbing member provided by the present invention.

[0032] Figure 6 It is a partial bottom view of the flow disturbing member provided by the present invention.

[0033] Figure 7 It is a three-dimensional structural schematic diagram of the cooperation between the mounting base and the barrier blade provided by the present invention.

[0034] Figure 8 It is a three-dimensional structural schematic diagram of the first adjusting member and the second adjusting member provided by the present invention.

[0035] Figure 9 It is provided by the present invention Figure 8 An enlarged view of part A in

[0036] Reference numerals: 1, drying tower; 2, atomizer; 3, hot air inlet; 4, flow disturbing mechanism; 5, auxiliary mechanism; 6, mounting frame; 41, supporting cross bar; 42, fixing column; 43, first adjusting member; 44, second adjusting member; 45, flow disturbing member; 51, fixing shell; 52, hot air flow cavity; 53, solution containing cavity; 54, reserved box; 55, hot air distributor; 431, transmission shaft; 432, mounting disc; 433, telescopic connecting rod; 434, L-shaped connecting rod; 441, electric telescopic rod; 442, connecting sliding seat; 443, linkage rod; 451, barrier blade; 452, linkage column; 453, limiting chute; 454, mounting base; 455, hinge seat. Detailed implementation manners

[0037] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0038] As Figure 1 and Figure 2 shown, a drying device for preparing acid particle indigo includes a mounting frame 6. A drying tower 1 is fixedly installed inside the mounting frame 6. An atomizer 2 is arranged at the top of the drying tower 1. A hot air inlet 3 is arranged at the top of the drying tower 1 and outside the atomizer 2. Discharge ports are arranged at the bottom and side of the drying tower 1. The discharge port on the side is connected to an external cyclone separator. A flow disturbing mechanism 4 is arranged inside the drying tower 1. An auxiliary mechanism 5 for preheating the solution is arranged at the top of the drying tower 1.

[0039] As Figure 1 and Figure 3As shown, the auxiliary mechanism 5 includes a fixed shell 51 fixedly connected to the top of the drying tower 1, a solution containing chamber 53 is fixedly connected inside the fixed shell 51, a hot air circulation chamber 52 is formed between the solution containing chamber 53 and the inner wall of the fixed shell 51, the left side of the fixed shell 51 is fixedly and penetrated with the hot air inlet 3, the right side of the fixed shell 51 is fixedly and penetrated with a hot air distributor 55, the end of the hot air distributor 55 away from the fixed shell 51 is fixedly and penetrated with the upper surface of the drying tower 1, a reserved box 54 is arranged below the fixed shell 51, and the bottom end of the reserved box 54 is fixedly and penetrated with the atomizer 2.

[0040] like Figure 1 and Figure 3 As shown, an inverted V-shaped partition plate is provided on the inner wall of the bottom end of the solution holding chamber 53, and a solution feeding pipe is provided on the upper surface of the solution holding chamber 53. The top end of the solution feeding pipe passes through the outer surface of the fixed shell 51. The bottom end of the solution holding chamber 53 and the upper surface of the reserved box 54 are connected through a connecting pipe. An electronic valve is provided on the connecting pipe. The electronic valve controls the connection and disconnection between the solution holding chamber 53 and the reserved box 54.

[0041] During specific use, first, the hot air inlet 3 generates hot air and transports it to the inside of the hot air circulation chamber 52, and then the hot air enters into the drying tower 1 through the hot air circulation chamber 52 and the hot air distributor 55. At the same time, the external feeding mechanism transports the acidic particle Yuanqing solution to the inside of the solution holding chamber 53. After the solution enters into the solution holding chamber 53, the hot air preheats the solution inside the solution holding chamber 53 during the process of passing through the hot air circulation chamber 52. The preheated solution enters into the reserved box 54. The solution in the reserved box 54 is transported to the atomizer 2. The atomizer 2 disperses the solution into fine droplets. These droplets have a large specific surface area. After contacting with the hot air, the moisture evaporates rapidly. Under the action of the hot air, the temperature of the droplets gradually increases, and the moisture is continuously evaporated, eventually forming dry particles or powder.

[0042] The connection between the solution holding chamber 53 and the reserved box 54 is controlled by an electronic valve between the solution holding chamber 53 and the reserved box 54. When the reserved box 54 is filled with solution, the electronic valve is closed. When the solution in the reserved box 54 is about to be used up, the electronic valve is opened again to fill the reserved box 54 with the preheated solution again. By controlling the connection between the reserved box 54 and the solution holding chamber 53, the solution in the solution holding chamber 53 can have more preheating time to ensure that each time the solution entering the reserved box 54 can maintain a higher temperature, the subsequent solution after atomization The efficiency of drying the spray is higher, and at the same time, it can also prevent the temperature of the preheated solution in the reserved box 54 from being affected by the newly replenished solution in the solution holding chamber 53.

[0043] like Figure 1 ,Figure 2 and Figure 4 As shown in Figure 2 and Figure 4 , the spoiler mechanism 4 includes two symmetrically arranged support crossbars 41 that are fixedly connected to the inner wall of the drying tower 1 up and down. A fixed column 42 coaxial with the drying tower 1 is fixedly connected to the two support crossbars 41. Three spoiler members 45 are evenly distributed up and down on the fixed column 42. A first adjusting member 43 is provided on the fixed column 42 and the spoiler members 45. A second adjusting member 44 is provided on the first adjusting member 43, the fixed column 42, and the support crossbars 41.

[0044] During specific use, before drying the solution, according to the spray amount, the separation distance of the spoiler members 45 is adjusted through the first adjusting member 43 to adjust the spoiler coverage area of the spoiler members 45 on the droplets. Then, the inclination angle of the spoiler members 45 is adjusted through the second adjusting member 44 to adjust the resistance degree of the spoiler members 45 to the droplets.

[0045] As Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown in Figure 4 , Figure 5 , Figure 6 and Figure 7 , the spoiler member 45 includes a plurality of hinge seats 455 distributed circumferentially and fixedly connected to the fixed column 42. An installation seat 454 is hinged to the hinge seat 455. A plurality of barrier blades 451 are evenly distributed from top to bottom and hinged to the installation seat 454. Limiting chutes 453 are provided on the lower surfaces of the barrier blades 451. Linking columns 452 are fixedly connected to the upper surfaces of the barrier blades 451. The linking columns 452 and the limiting chutes 453 on adjacent two barrier blades 451 are in sliding fit.

[0046] As Figure 4 、 Figure 8 and Figure 9 As shown in Figure 4 , Figure 8 and Figure 9 , the first adjusting member 43 includes a mounting disc 432 fixedly connected to the outer circumferential surface of the fixed column 42. The mounting position of the mounting disc 432 corresponds to the spoiler member 45. A plurality of telescopic connecting rods 433 are embedded and connected to the outer circumferential surface of the mounting disc 432. The lower surface of the telescopic end of the telescopic connecting rod 433 is spherical hinged with an L-shaped connecting rod 434. The horizontal section of the L-shaped connecting rod 434 is fixedly connected to the lower surface of the corresponding lowermost barrier blade 451. Transmission shafts 431 are rotatably connected to the outer circumferential surface of the fixed column 42 and below the mounting disc 432.

[0047] As Figure 4 、 Figure 8 and Figure 9As shown, internal gear rings are provided on both the upper and lower surfaces of the mounting disk 432. The transmission shaft 431 meshes with the internal gear ring on the corresponding mounting disk 432 through gears. On the upper surface of the bottom support cross bar 41, a driving motor is fixedly installed through a motor base. A gear disk is fixedly connected to the output shaft of the driving motor. The gear disk meshes with the bottom end of the bottommost transmission shaft 431 through gears. The vertical section of the L-shaped connecting rod 434 is telescopically arranged, and the vertical section and the horizontal section of the L-shaped connecting rod 434 are hinged.

[0048] During specific use, when adjusting the separation distance of the spoiler 45 through the first adjusting member 43, first, the driving motor drives the mounting disk 432 to rotate on the fixed column 42 through the transmission shaft 431. The mounting disk 432 drives a plurality of barrier blades 451 to rotate sequentially from bottom to top through the telescopic connecting rod 433 and the L-shaped connecting rod 434. Specifically, when the linkage column 452 of the first barrier blade 451 slides to the inner edge of the limit sliding groove 453 on the lower surface of the second barrier blade 451, the second barrier blade 451 starts to rotate following the first barrier blade 451. When the second barrier blade 451 starts to rotate, its linkage column 452 slides inside the limit sliding groove 453 on the lower surface of the third barrier blade 451. When the linkage column 452 on the second barrier blade 451 slides to the edge of the limit sliding groove 453 on the lower surface of the third barrier blade 451, the third barrier blade 451 starts to rotate following the second barrier blade 451, and so on. With the continuous rotation of the barrier blades 451, a plurality of barrier blades 451 are driven to unfold sequentially from bottom to top to form a fan-shaped spoiler area with the mounting seat 454.

[0049] It should be noted that the fan-shaped spoiler areas formed when the three spoilers 45 are opened are staggered. In addition, the lengths of the barrier blades 451 in the three spoilers 45 can be set to gradually increase from top to bottom, which not only ensures the smooth downward flow of hot air and spray but also plays a certain barrier role for the spray, prolonging the drying time of the spray in the hot air.

[0050] Such as Figure 4 、 Figure 8 and Figure 9As shown in the figure, the second adjusting member 44 includes a connecting sliding seat 442 that is slidably connected up and down to the outer circumferential surface of the fixed column 42. The position of the connecting sliding seat 442 corresponds to the position of the spoiler 45 and is located below the spoiler 45. A telescopic electric rod 441 is fixedly connected to the lower surface of the lower support cross bar 41. The inside of the fixed column 42 is hollow. The telescopic end of the telescopic electric rod 441 penetrates the inside of the fixed column 42. The connecting sliding seat 442 penetrates into the inside of the fixed column 42 and is fixedly connected to the telescopic end of the telescopic electric rod 441. Rectangular through holes are provided on the circumferential surface of the fixed column 42 corresponding to the position where the connecting sliding seat 442 penetrates. A plurality of linkage rods 443 arranged in a circular array are hinged on the connecting sliding seat 442. The plurality of linkage rods 443 correspond one by one to a plurality of mounting seats 454 on its corresponding spoiler 45. The end of the linkage rod 443 away from the connecting sliding seat 442 is hinged to the lower surface of its corresponding mounting seat 454.

[0051] During specific use, when adjusting the inclination angle of the spoiler 45 through the second adjusting member 44, the telescopic electric rod 441 contracts to drive the connecting sliding seat 442 to move downward on the support cross bar 41. The connecting sliding seat 442 pulls the mounting seat 454 to rotate on the hinge seat 455 through the linkage rod 443, thereby adjusting the inclination angle of the barrier blade 451, facilitating the downward sliding and discharging of the dry particles under their own weight and the blowing of hot air, and also changing the area of the projection of the spoiler 45 on the horizontal plane, that is, changing the disturbance range. At the same time, through the telescopic movement of the telescopic connecting rod 433 and the hinge between it and the L-shaped connecting rod 434, the telescopic connecting rod 433 and the L-shaped connecting rod 434 will not affect the normal adjustment of the inclination angle of the barrier blade 451 when adjusting the inclination angle of the barrier blade 451. The vertical section of the L-shaped connecting rod 434 is telescopic and is hinged to its horizontal section, so that the inclination angle of the barrier blade 451 can be adjusted more flexibly.

[0052] As Figure 1 and Figure 2 shown, the use process of using the above drying equipment to dry and prepare acidic particle indigo includes the following steps: S1. First, the hot air inlet 3 generates hot air and continuously conveys it into the inside of the drying tower 1.

[0053] S2. Then, an external feeding mechanism conveys the acidic particle indigo solution into the inside of the auxiliary mechanism 5, and the solution is preheated through the auxiliary mechanism 5.

[0054] S3. The acidic particle indigo solution is conveyed into the inside of the atomizer 2 through the auxiliary mechanism 5, and the atomizer 2 disperses the solution into extremely small diameter droplets and sprays them inside the drying tower 1.

[0055] S4. After the droplets are scattered inside the drying tower 1 and continuously fall downward, when passing through the flow disturbing mechanism 4, the flow disturbing mechanism 4 blocks the downward falling droplets, enabling the droplets to stay inside the drying tower 1 for a longer time, fully contact with the hot air, adjust the coverage area of the flow disturbing member 45 through the first adjusting member 43, and adjust the inclination angle of the flow disturbing member 45 through the second adjusting member 44, so as to change the flow disturbing range.

[0056] S5. Under the action of the hot air, the temperature of the droplets gradually rises, and the moisture is continuously evaporated, finally forming dry particles.

[0057] S6. The external cyclone separator sucks out a part of the particles through the side discharge port, separates them from the hot air and collects them uniformly. The other part of the particles fall out through the discharge port at the bottom end of the drying tower 1 and are collected together with the particles sucked out by the external cyclone separator for unified discharge.

[0058] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0059] In addition, the terms "first", "second", "No. 1", "No. 2" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "No. 1", "No. 2" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0060] In the present invention, unless otherwise clearly specified and limited, the terms such as "installation", "connection", "connection", "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A drying device for preparing acid particle indigo, comprising a drying tower and an atomizer arranged at the top end of the drying tower. The bottom end and the side of the drying tower are both provided with discharge ports, and it is characterized in that: A spoiler mechanism is arranged inside the drying tower, an auxiliary mechanism for preheating the solution is arranged at the top of the drying tower, and a hot air inlet is arranged on the auxiliary mechanism; The spoiler mechanism includes two support cross bars fixedly connected to the inner wall of the drying tower. A fixed column is vertically fixed between the upper and lower support cross bars. Three spoiler members are arranged vertically on the fixed column. The spoiler mechanism further includes a first adjusting member for adjusting the circumferential coverage area of the spoiler members. The coverage areas of the three spoiler members are staggered. The spoiler mechanism further includes a second adjusting member for adjusting the inclination angle of the spoiler members; The spoiler member includes a plurality of hinge seats fixedly connected to the fixed column and distributed in a circumferential manner. An installation seat is hinged to the hinge seat. A plurality of blocking blades with limiting chutes opened on the lower surface and linkage columns fixed on the upper surface are coaxially hinged to the installation seat. The limiting chutes of two adjacent blocking blades are slidably matched with the linkage columns. The blocking blades are opened in sequence from bottom to top to jointly form a fan-shaped spoiler area; The first adjusting member includes a mounting disc fixedly connected to the outer circumferential surface of the fixed column. The mounting disc is installed corresponding to the spoiler member. A plurality of telescopic connecting rods are embedded and connected to the outer circumferential surface of the mounting disc. The lower surface of the telescopic end of the telescopic connecting rod is spherical hinged to an L-shaped connecting rod. The horizontal section of the L-shaped connecting rod is fixedly connected to the lower surface of the bottommost blocking blade corresponding to it. Drive shafts are rotatably connected to the outer circumferential surface of the fixed column and below the mounting disc; Inner gear rings are arranged on the upper and lower surfaces of the mounting disc. The drive shaft is meshed with the inner gear ring on the corresponding mounting disc through a gear. A drive motor is fixedly installed on the upper surface of the bottommost support cross bar through a motor seat. A toothed disc is fixedly connected to the output shaft of the drive motor. The toothed disc is meshed with the bottom end of the bottommost drive shaft through a gear.

2. The drying equipment for preparing acid particle indigo according to claim 1, characterized in that: The auxiliary mechanism includes a fixed shell fixedly connected to the top of the drying tower. The left side surface of the fixed shell is communicated with the hot air inlet. A solution accommodating cavity is fixedly connected inside the fixed shell. A hot air circulation cavity is formed between the solution accommodating cavity and the inner wall of the fixed shell. The left side of the fixed shell is fixedly and penetratively connected to the hot air inlet. The right side of the fixed shell is fixedly and penetratively connected to a hot air distributor. One end of the hot air distributor away from the fixed shell is fixedly and penetratively connected to the upper surface of the drying tower. A reserved box is arranged below the fixed shell. The bottom end of the reserved box is fixedly and penetratively connected to an atomizer.

3. The drying device for preparing acid particle navy blue according to claim 2, characterized in that: An inverted V-shaped partition plate is arranged on the inner wall of the bottom end of the solution accommodating cavity. A solution feeding pipe is arranged on the upper surface of the solution accommodating cavity. The top end of the solution feeding pipe penetrates through the outer surface of the fixed shell.

4. The drying device for preparing acid particle ultramarine according to claim 2, wherein: The bottom end of the solution accommodating cavity is connected to the upper surface of the reserved box through a communicating pipe. An electronic valve is arranged on the communicating pipe. The electronic valve controls the on-off between the solution accommodating cavity and the reserved box.

5. A drying device for preparing acid particle indigo, according to claim 1, characterized in that: The vertical section of the L-shaped connecting rod is telescopically arranged. The vertical section and the horizontal section of the L-shaped connecting rod are hinged.

6. The drying device for preparing acid particle indigo according to claim 1, wherein: The second adjusting member includes a connecting sliding seat that is vertically slidably connected to the outer circumferential surface of the fixed column and is located below the spoiler. A telescopic electric rod is fixedly connected to the lower surface of the lower support cross bar. The inside of the fixed column is hollow. The telescopic end of the telescopic electric rod penetrates the inside of the fixed column. The connecting sliding seat penetrates into the inside of the fixed column and is fixedly connected to the telescopic end of the telescopic electric rod. Rectangular through holes are formed in the circumferential surface of the fixed column corresponding to the position where the connecting sliding seat penetrates. A plurality of linkage rods arranged in a circular array are hinged on the connecting sliding seat.

7. A drying device for preparing acid particle indigo, according to claim 6, characterized in that: A plurality of the linkage rods correspond one by one to a plurality of mounting seats on their corresponding spoilers, and one end of the linkage rod away from the connecting sliding seat is hinged to the lower surface of its corresponding mounting seat.

8. A drying process for preparing acid particle indigo, which is carried out using the drying equipment described in any one of claims 1-7, includes the following steps: S1. First, hot air is generated at the hot air inlet and continuously conveyed into the drying tower. S2. Then, an external feeding mechanism conveys the acid particle indigo solution into the auxiliary mechanism, and the solution is preheated by the auxiliary mechanism. S3. The acid particle indigo solution is conveyed into the atomizer through the auxiliary mechanism, and the atomizer disperses the solution into extremely small diameter droplets and sprays them inside the drying tower. S4. When the droplets fall inside the drying tower and continue to fall downward, when passing through the spoiler mechanism, the spoiler mechanism blocks the droplets falling downward, so that the droplets can stay inside the drying tower for a longer time and fully contact with the hot air. S5. Under the action of the hot air, the temperature of the droplets gradually rises, and the moisture is continuously evaporated, and finally dry particles are formed. S6. The external cyclone separator sucks out a part of the particles through the side discharge port, separates them from the hot air and collects them uniformly. The other part of the particles fall out through the discharge port at the bottom of the drying tower and are collected together with the particles sucked out by the external cyclone separator and then discharged uniformly.

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