Photoinitiator drying system

Abstract

The invention discloses a photoinitiator drying system which comprises an adjustable material conveying device installed in a heating cabinet, and an adjustable uniform material distributing device and a roller grinding type material receiving device are arranged at the inlet end and the outlet end of the adjustable material conveying device respectively. A vertical adjustable material scraping device is installed on the heating cabinet and located at a discharging port of the adjustable material uniform distribution device, the outlet end of the roller grinding type material receiving device is communicated with the inlet end of the multi-pipe type heat exchange device, and a photoinitiator to be dried enters the adjustable material conveying device from the inlet end of the adjustable material conveying device. And the dried and heat-exchanged photoinitiator is discharged from the outlet end of the multi-tube heat exchange device and is collected. The drying efficiency of the photoinitiator is improved, the hardened photoinitiator can be effectively crushed, the whole drying process is continuous, and the subsequent processing difficulty is reduced. The method is suitable for the technical field of photoinitiator drying.

Description

Technical Field

[0001] The invention belongs to the technical field of drying powdered chemical substances, and in particular relates to a photoinitiator drying system. Background Art

[0002] At present, during the production and processing of photoinitiators, they will contain a certain amount of moisture; or during the long-term storage of photoinitiators, they will be affected by the environment and become damp and hardened. Therefore, it is necessary to dry the photoinitiator to prevent it from becoming ineffective or denatured. There are two existing drying methods. The first is discontinuous drying, that is, during the drying process, the photoinitiator is put into a drying kettle, and the drying kettle is heated and the photoinitiator is stirred at the same time, so that the moisture in it is gradually separated. After completion, the dried photoinitiator is discharged, and then the next drying operation is carried out. This discontinuous drying method has a low drying efficiency. The second type is continuous drying, that is, during the drying process, the photoinitiator is continuously transported to the conveyor belt, and the space where the conveyor belt is located is heated, thereby achieving the purpose of dehydrating and drying the photoinitiator. Although this method has improved efficiency, it cannot ensure that the photoinitiator on the conveyor belt is evenly and continuously laid on the conveyor belt according to a predetermined thickness range, and cannot ensure uniform heating and drying. Moreover, the drying effect of the agglomerated photoinitiator is poor. The agglomerated photoinitiator is mostly still in a block form after the drying is completed. In subsequent use, it needs to be crushed separately to be ground into powder, which increases the difficulty of subsequent processing. Summary of the invention

[0003] The present invention provides a photoinitiator drying system, which is used for improving drying efficiency and can effectively crush the agglomerated photoinitiator, so that the whole drying process is continuous and the difficulty of subsequent processing is reduced.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] A photoinitiator drying system comprises an adjustable feeding device installed in a heating cabinet, an adjustable material distribution device and a roller mill type material collection device are respectively arranged at the inlet end and the outlet end of the adjustable feeding device, a vertical adjustable scraper device is installed on the heating cabinet and located at the discharge port of the adjustable material distribution device, the outlet end of the roller mill type material collection device is connected to the inlet end of a multi-tube heat exchange device, the photoinitiator to be dried enters the adjustable feeding device from the inlet end of the adjustable feeding device, and the photoinitiator after drying and heat exchange is discharged from the outlet end of the multi-tube heat exchange device and collected.

[0006] Furthermore, the adjustable feeding device includes an active roller installed at one end of the heating cabinet, and two driven rollers installed at the other end of the heating cabinet, the two driven rollers are vertically spaced apart, the active roller is rotatably connected to the two lateral walls of the heating cabinet via a first shaft rod coaxially connected thereto, the driven roller is rotatably connected to the two lateral walls of the heating cabinet via a second shaft rod coaxially connected thereto, and the active roller and the two driven rollers are connected via a conveyor belt transmission, and one end of the first shaft rod is connected to the driving mechanism.

[0007] Furthermore, longitudinal slide rails are symmetrically installed on the two lateral walls of the heating cabinet and at the active rollers, and first sliders are rotatably connected to the two ends of the first shaft rod, each of the first sliders is slidably connected to the corresponding longitudinal slide rail, and each first slider is connected to the transverse plate through the longitudinal rod, and a longitudinal cylinder is installed on the transverse plate; first vertical slide rails are symmetrically installed on the two lateral walls of the heating cabinet and at the two driven rollers, and second sliders are rotatably connected to the two ends of each second shaft rod, each of the second sliders is slidably connected to the corresponding first vertical slide rail, and the two second sliders on the same side of the two driven rollers are connected by a vertical elastic rod.

[0008] Furthermore, the driving mechanism includes a driving motor connected to the transverse plate through an adapter, a driving wheel is coaxially mounted on the output shaft of the driving motor, a driven wheel is coaxially mounted on one end of the first shaft, and the driving wheel and the driven wheel are connected by a transmission belt.

[0009] Furthermore, the adjustable uniform material distribution device includes a material distribution kettle installed on the upper part of one end of the heating cabinet, a material disturbance mechanism is installed in the material distribution kettle, and a vertical adjustment mechanism and an inclination adjustment mechanism are respectively constructed between the material distribution kettle and the heating cabinet; the material disturbance mechanism includes a first mounting shaft rotatably connected to the material distribution kettle, a plurality of scraping blades are evenly connected to the first mounting shaft along its circumference, a first motor is arranged outside the material distribution kettle, and the output shaft of the first motor is coaxially connected to one end of the first mounting shaft.

[0010] Furthermore, the distribution kettle includes a first kettle body with a first feed port and a first discharge port respectively opened at the upper and lower ends, a first end baffle is constructed on the first kettle body and located at the first feed port, first lateral baffles are respectively constructed on both sides of the first end baffle, the first feed port is located between the two first lateral baffles, and a first discharge orifice plate is detachably connected to the first discharge port.

[0011] Furthermore, the vertical adjustment mechanism includes two third sliders rotatably installed at both ends of the first installation shaft respectively, two second vertical slide rails are installed on the heating cabinet, each third slide rail is slidably connected to the corresponding second vertical slide rail, a transmission plate is installed at the upper end of each second vertical slide rail, a vertical driving member is assembled between the transmission plate and the corresponding third slide rail, and the first motor is connected to the corresponding third slider; the inclination adjustment mechanism includes an oblique driving member with one end hinged on the material distribution kettle, and the other end of the oblique driving member is hinged on the transverse beam, and the transverse beam is detachably connected to the heating cabinet.

[0012] Furthermore, the roller grinding material collecting device includes a material collecting kettle installed on the end wall of the heating cabinet, and a roller grinding mechanism is installed in the material collecting kettle; the roller grinding mechanism includes a second mounting shaft rotatably connected to the material collecting kettle, and a plurality of grinding rollers are evenly connected to the second mounting shaft along its circumference, and both ends of each grinding roller are rotatably connected to an elastic telescopic rod, and one end of each elastic telescopic rod away from the grinding roller is fixedly connected to the second mounting shaft, and a second motor is arranged outside the material collecting kettle, and the output shaft of the second motor is coaxially connected to one end of the second mounting shaft.

[0013] Furthermore, the vertically adjustable scraper device includes a vertical plate movably mounted on the upper end wall of the heating cabinet, a scraper plate extending obliquely downward is constructed at the lower end of the vertical plate, and the lower end of the scraper plate extends back to the adjustable feeding device, and a plurality of dividing ribs are constructed on the lower end surface of the scraper plate at intervals along the inclination direction of the scraper plate, and the middle portion of each of the dividing ribs extends obliquely back to the vertical direction of the material, an assembly seat is installed on the upper end wall, and a vertical cylinder is connected between the assembly seat and the upper end of the vertical plate.

[0014] Furthermore, the multi-tube heat exchange device includes a vertical heat exchange tube with a medium outlet and a medium inlet respectively constructed at the upper and lower ends of the circumferential side wall, a plurality of vertical guide pipes are evenly arranged along the circumference of the vertical heat exchange tube, and a spiral blade extending spirally along the axis thereof is constructed in each of the vertical guide pipes, a feed hopper and a discharge tube are respectively arranged above and below the vertical heat exchange tube, a plurality of first curved pipes are evenly connected to the lower end of the feed hopper along the circumference, and a plurality of second curved pipes are evenly connected to the upper end of the discharge tube along the circumference, and the upper and lower ends of each vertical guide pipe are rotatably connected to the first curved pipe and the second curved pipe respectively, a power motor is installed on the vertical heat exchange tube or the discharge hopper, a driving gear is coaxially mounted on the output shaft of the power motor, and a driven gear is coaxially mounted on each vertical guide pipe, and the driving gear and each driven gear are meshed with each other.

[0015] Since the present invention adopts the above-mentioned structure, the technical progress achieved by it compared with the prior art is that: the present invention continuously conveys the photoinitiator to be dried to the adjustable uniform material distribution device, the adjustable uniform material distribution device disturbs the photoinitiator therein and distributes it uniformly to the adjustable feeding device, and at the same time, the adjustable uniform material distribution device disturbs the material therein so that the compacted photoinitiator is gradually broken up; thereafter, in the process of passing through the vertical adjustable scraper device, it is scraped flat by the vertical adjustable scraper device so that the photoinitiator is laid on the adjustable feeding device according to a predetermined thickness range, and the thickness of the photoinitiator is adjusted by adjusting the distance between the vertical adjustable scraper device and the adjustable feeding device; and under the conveyance of the adjustable feeding device, the adjustable feeding device is controlled to move so that the photoinitiator thereon vibrates to a certain extent, thereby improving the heat exchange between the photoinitiator and the heating cabinet, and prompting the moisture in the photoinitiator to be dried out. The dried photoinitiator enters the multi-tube heat exchange device through the roller mill receiving device, and the photoinitiator is rolled and ground in the roller mill receiving device, so that the agglomerated photoinitiator is completely ground into powder; and the temperature of the multi-tube heat exchange device is controlled according to the dryness of the photoinitiator discharged from the roller mill receiving device, that is, if the photoinitiator discharged from the roller mill receiving device is completely dry, the cooling medium can be transported into the multi-tube heat exchange device to achieve the purpose of cooling the photoinitiator; if the photoinitiator discharged from the roller mill receiving device is not completely dry, the heating medium can be transported into the multi-tube heat exchange device to achieve the purpose of secondary drying of the photoinitiator, thereby ensuring the purpose of complete drying of the photoinitiator. Moreover, the multi-tube heat exchange device of the present invention can divide the photoinitiator entering therein into multiple heat exchange branches, thereby achieving the purpose of synchronous parallel heat exchange, thereby improving the efficiency of heat exchange. In summary, the present invention improves the drying efficiency of the photoinitiator, can effectively crush the agglomerated photoinitiator, makes the entire drying process continuous, and reduces the difficulty of subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0017] In the attached picture:

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0019] Figure 2 A structural side view of an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of an embodiment of the present invention after removing the roller mill type material receiving device and the multi-tube heat exchange device;

[0021] Figure 4 It is a schematic structural diagram of the corresponding arrangement of an adjustable material distribution device, a vertically adjustable scraping device and a local adjustable material feeding device according to an embodiment of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the corresponding arrangement of the roller mill type material receiving device and the local adjustable material feeding device in an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of an adjustable uniform material distribution device according to an embodiment of the present invention;

[0024] Figure 7 It is a partial structural cross-sectional view of the adjustable uniform material distribution device according to an embodiment of the present invention;

[0025] Figure 8 It is a structural schematic diagram of a vertically adjustable scraper device according to an embodiment of the present invention;

[0026] Fig. 9 It is a structural schematic diagram of another angle of the vertically adjustable scraper device according to an embodiment of the present invention;

[0027] Fig.10 It is a schematic diagram of the partial structure of a heating cabinet according to an embodiment of the present invention;

[0028] Fig.11 It is a structural schematic diagram of the roller mill type material receiving device and the heating cabinet correspondingly arranged in an embodiment of the present invention;

[0029] Fig.12 It is a schematic diagram of the partially disassembled structure of the roller mill type material collecting device according to an embodiment of the present invention;

[0030] Fig.13 It is a partial structural cross-sectional view of a roller mill type material receiving device according to an embodiment of the present invention;

[0031] Fig.14 This is a schematic structural diagram of a multi-tube heat exchange device according to an embodiment of the present invention;

[0032] Fig.15 This is a schematic diagram of the structure of the multi-tube heat exchange device according to an embodiment of the present invention after the vertical heat exchange tube is removed;

[0033] Fig.16 It is a schematic diagram of the partial structure of the vertical material guide pipe in the multi-tube heat exchange device according to an embodiment of the present invention.

[0034] Labeled parts: 100-heating cabinet, 101-lateral wall, 102-upper end wall, 103-lower end wall, 104-end wall, 105-assembly port, 106-blocking plate, 107-longitudinal slide rail, 108-first vertical slide rail, 109-second vertical slide rail, 200-adjustable feeding device, 201-active roller, 202-first shaft rod, 203-first slider, 204-driven roller, 205-second shaft rod, 206-second slider, 208-conveyor belt, 209-vertical discharge part, 210-longitudinal air Cylinder, 211-transverse plate, 212-longitudinal rod, 213-adapter, 214-drive motor, 215-driven wheel, 216-transmission belt, 217-plug rod, 218-plug tube, 219-medium hose, 300-adjustable uniform material distribution device, 301-material distribution kettle, 302-material distribution chamber, 303-first end baffle, 304-first lateral baffle, 305-first mounting shaft, 306-connecting rod, 307-scraping blade, 308-first discharge port, 309-first discharge hole plate, 310-first Motor, 311-third slider, 312-vertical screw, 313-operating hand wheel, 314-transverse beam, 315-oblique driving member, 400-vertical adjustable scraper device, 401-vertical plate, 402-scraper plate, 403-material dividing rib, 404-assembly seat, 405-vertical cylinder, 500-roller mill receiving device, 501-receiving kettle, 502-abrasive cavity, 503-second end baffle, 504-second lateral baffle, 505-second mounting shaft, 506-elastic telescopic rod, 507-adapter ring, 508-grinding roller, 509-second discharge port, 510-second discharge orifice plate, 511-discharge hopper, 512-discharge port, 513-second motor, 514-fixed plate, 600-multi-tube heat exchange device, 601-vertical heat exchange cylinder, 602-medium inlet, 603-medium outlet, 604-feed hopper, 605-first elbow, 606-vertical guide pipe, 607-spiral blade, 608-second elbow, 609-discharge cylinder, 610-power motor, 611-driving gear, 612-driven gear. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0036] The present invention discloses a photoinitiator drying system, such as Figure 1-16As shown, it includes a heating cabinet 100, an adjustable material feeding device 200, an adjustable material distribution device 300, a roller mill type material receiving device 500, a vertical adjustable scraper device 400 and a multi-tube heat exchange device 600. Among them, the adjustable material feeding device 200 is installed in the heating cabinet 100, the adjustable material distribution device 300 and the roller mill type material receiving device 500 are respectively arranged at the inlet end and the outlet end of the adjustable material feeding device 200, and the vertical adjustable scraper device 400 is arranged on the heating cabinet 100 and is located at the outlet of the adjustable material distribution device 300. The outlet end of the roller mill type material receiving device 500 of the present invention is connected with the inlet end of the multi-tube heat exchange device 600, and the photoinitiator to be dried enters the adjustable material feeding device 200 from the inlet end of the adjustable material feeding device 200, and the photoinitiator after drying and heat exchange is discharged from the outlet end of the multi-tube heat exchange device 600 and collected. The working principle and advantages of the present invention are as follows: the present invention continuously conveys the photoinitiator to be dried to the adjustable uniform distribution device 300, the adjustable uniform distribution device 300 disturbs the photoinitiator therein and evenly distributes it to the adjustable feeding device 200, and at the same time, the adjustable uniform distribution device 300 disturbs the material therein so that the compacted photoinitiator is gradually broken; thereafter, in the process of passing through the vertical adjustable scraper device 400, it is scraped flat by the vertical adjustable scraper device 400, so that the photoinitiator is laid on the adjustable feeding device 200 according to a predetermined thickness range, and the thickness of the photoinitiator is adjusted by adjusting the distance between the vertical adjustable scraper device 400 and the adjustable feeding device 200; and under the conveyance of the adjustable feeding device 200, the adjustable feeding device 200 is controlled to move, so that the photoinitiator thereon vibrates to a certain extent, thereby improving the heat exchange between the photoinitiator and the heating cabinet 100, and prompting the moisture in the photoinitiator to be dried out. The dried photoinitiator enters the multi-tube heat exchange device 600 through the roller mill receiving device 500, and the photoinitiator is rolled and ground in the roller mill receiving device 500, so that the agglomerated photoinitiator is completely ground into powder; and the temperature of the multi-tube heat exchange device 600 is controlled according to the dryness of the photoinitiator discharged from the roller mill receiving device 500, that is, if the photoinitiator discharged from the roller mill receiving device 500 is completely dry, the cooling medium can be transported into the multi-tube heat exchange device 600 to achieve the purpose of cooling the photoinitiator; if the photoinitiator discharged from the roller mill receiving device 500 is not completely dry, the heating medium can be transported into the multi-tube heat exchange device 600 to achieve the purpose of secondary drying of the photoinitiator, thereby ensuring the purpose of complete drying of the photoinitiator. Moreover, the multi-tube heat exchange device 600 of the present invention can divide the photoinitiator entering therein into multiple heat exchange branches, thereby achieving the purpose of synchronous parallel heat exchange, thereby improving the efficiency of heat exchange. In summary, the present invention improves the drying efficiency of the photoinitiator, can effectively crush the agglomerated photoinitiator, makes the entire drying process continuous, and reduces the difficulty of subsequent processing.

[0037] As a preferred embodiment of the present invention, Figure 3 , 10 As shown, the heating cabinet 100 includes two lateral walls 101 arranged opposite to each other, and an upper end wall 102 and a lower end wall 103 are respectively installed at the upper and lower ends of the two lateral walls 101, and an end wall 104 is installed at one end of the two lateral walls 101 close to the roller mill type material receiving device 500, and an assembly port 105 is opened on the end wall 104, and a material baffle plate 106 is fixed at the upper end of the assembly port 105, and the material baffle plate 106 extends downwardly obliquely, and the feed end of the roller mill type material receiving device 500 extends to the corresponding position of the adjustable feeding device 200 through the assembly port 105, so as to receive the material discharged by the adjustable feeding device 200, and in the process of discharging, the material baffle plate 106 can effectively prevent the material from splashing. In this embodiment, electric heating wires are respectively installed on the lateral wall 101 and the upper end wall 102 to provide heat in the heating cabinet 100, so as to promote the temperature inside to reach a predetermined range, and achieve the purpose of drying the photoinitiator.

[0038] As a preferred embodiment of the present invention, Figure 2-5 As shown, the adjustable feeding device 200 includes a driving roller 201 and two driven rollers 204. The driving roller 201 is installed at one end of the heating cabinet 100, and the two driven rollers 204 are installed at the other end of the heating cabinet 100, and the two driven rollers 204 are arranged at intervals in the vertical direction. The driving roller 201 is coaxially assembled on the first shaft 202, and the two ends of the first shaft 202 extend out of the two ends of the driving roller 201, and the two ends of the first shaft 202 are respectively connected to the two lateral walls 101 of the heating cabinet 100; each driven roller 204 is coaxially assembled on the corresponding second shaft 205, and the two ends of the second shaft 205 extend out of the two ends of the driven roller 204, and the two ends of the second shaft 205 are respectively connected to the two lateral walls 101 of the heating cabinet 100, and the driving roller 201 and the two driven rollers 204 are connected by transmission through the conveyor belt 208, and one end of the first shaft 202 is connected to the driving mechanism. In this embodiment, the driving mechanism is controlled to drive the first shaft 202 to drive the active roller 201 to rotate. In this way, under the transmission of the conveyor belt 208, the two second shafts 205 respectively drive the two driven rollers 204 to rotate, and the photoinitiator falls on the conveyor belt 208 through the adjustable uniform material distribution device 300. During the operation of the conveyor belt 208, the photoinitiator is driven to move toward the roller mill type collecting device 500, and is gradually heated in the heating cabinet 100 to be dehydrated and dried.

[0039] As a preferred embodiment of the present invention, Figure 3-5As shown, longitudinal slide rails 107 are symmetrically installed on the two lateral walls 101 of the heating cabinet 100 and at the active rollers 201, and first sliders 203 are rotatably connected at both ends of the first shaft 202, each first slider 203 is slidably connected to the corresponding longitudinal slide rail 107, each first slider 203 is connected to the transverse plate 211 through a longitudinal rod 212, and a longitudinal cylinder 210 is installed on the transverse plate 211. In this embodiment, first vertical slide rails 108 are symmetrically installed on the two lateral walls 101 of the heating cabinet 100 and at the two driven rollers 204, and second sliders 206 are rotatably connected at both ends of each second shaft 205, each second slider 206 is slidably connected to the corresponding first vertical slide rail 108, and two second sliders 206 on the same side of the two driven rollers 204 are connected by a vertical elastic rod. The vertical elastic rod includes two plug-in rods 217, which are fixedly connected to the end faces of the two second sliders 206, and the ends of the two plug-in rods 217 close to each other are respectively movably inserted into the two ends of the plug-in tube 218, and a connecting spring coinciding with the axis of the plug-in tube 218 is arranged in the plug-in tube 218, and the two ends of the connecting spring are respectively connected to the two ends of the two plug-in rods 217 close to each other; the plug-in tube 218 is connected with a medium hose 219, and high-pressure air enters the plug-in tube 218 through the medium hose 219, or high-pressure gas is discharged from the plug-in tube 218 by the medium hose 219. The driving mechanism of this embodiment includes a driving motor 214, which includes a drive motor 214 connected to a horizontal plate 211 through an adapter 213, a driving wheel is coaxially installed on the output shaft of the driving motor 214, and a driven wheel 215 is coaxially installed at one end of the first shaft 202, and the driving wheel and the driven wheel 215 are connected through a transmission belt 216. The working principle and advantages of this embodiment are: this embodiment controls the driving motor 214 to drive the first shaft 202 to rotate, thereby achieving the purpose of conveying materials by the conveyor belt 208. During the conveying process, the longitudinal cylinder 210 is controlled to move, and at the same time, the two vertical elastic rods are controlled to be synchronously extended and retracted, so that the conveyor belt 208 is always in a dynamically tensioned state, and the inclination angle of the conveyor belt 208 and the length of the conveyed material change, so that the material is always in a state of dynamic undulating motion on the conveyor belt 208, which makes the material always in a loose state, so as to facilitate the penetration of heat, improve the efficiency of heat exchange, and make the material drying more sufficient. In this embodiment, the portion of the conveyor belt 208 located between the two driven rollers 204 is a vertical discharge portion 209, and the inlet end of the roller mill type material collecting device 500 is located at the vertical discharge portion 209. In this way, after the dried material is transferred to the vertical discharge portion 209, it falls into the inlet end of the roller mill type material collecting device 500 under the action of gravity, thereby facilitating the discharge of the conveyor belt 208 and avoiding the waste caused by the material remaining on the conveyor belt 208.

[0040] As a preferred embodiment of the present invention, Figure 6 , 7 As shown, the adjustable uniform material distribution device 300 includes a material distribution kettle 301, a material disturbance mechanism, a vertical adjustment mechanism and an inclination adjustment mechanism. The material distribution kettle 301 is installed at the upper part of one end of the heating cabinet 100, the material disturbance mechanism is installed in the material distribution kettle 301, and the vertical adjustment mechanism and the inclination adjustment mechanism are respectively constructed between the material distribution kettle 301 and the heating cabinet 100. The material disturbance mechanism of this embodiment includes a first installation shaft 305, which is rotatably connected in the material distribution kettle 301, and a plurality of scraping blades 307 are arranged in the material distribution cavity 302 of the material distribution kettle 301. These scraping blades 307 are evenly arranged along the circumference of the first installation shaft 305, each scraping blade 307 is connected to the first installation shaft 305 through two connecting rods 306, and each scraping blade 307 is close to or in contact with the inner peripheral wall of the material distribution kettle 301. A first motor 310 is arranged outside the material distribution kettle 301, and the output shaft of the first motor 310 is coaxially connected to one end of the first mounting shaft 305. The material distribution kettle 301 of this embodiment includes a first kettle body, and a first feed port and a first discharge port 308 are respectively opened at the upper and lower ends of the first kettle body, a first end baffle 303 is constructed on the first kettle body and located at the first feed port, and first lateral baffles 304 are respectively constructed on both sides of the first end baffle 303, the first feed port is located between the two first lateral baffles 304, and a first discharge orifice plate 309 is detachably connected to the first discharge port 308. The working principle and advantages of this embodiment are as follows: this embodiment controls the action of the first motor 310 to drive the first mounting shaft 305 to rotate. During the rotation process, the first mounting shaft 305 drives all the scraper blades 307 to rotate in the material distribution chamber 302, thereby realizing the rotation and flipping of the photoinitiator in the material distribution chamber 302, and when it is rotated to the first end baffle 303, the photoinitiator is flipped onto the first end baffle 303, so that the compacted photoinitiator is broken, and then falls into the material distribution chamber 302. With the rotation and flipping operation of the scraper blades 307, the material is gradually and evenly discharged from the first discharge hole plate 309 to the conveyor belt 208; the larger compacted material cannot be discharged through the first discharge hole plate 309, and this part of the material will be continuously flipped and broken until the material can be smoothly discharged through the first discharge hole plate 309. In this embodiment, each scraping blade 307 is covered with bristles at one end away from the first mounting shaft 305 for repeatedly scraping the first discharge orifice plate 309 to avoid blockage of the first discharge orifice plate 309 .

[0041] As a preferred embodiment of the present invention, Figure 6As shown, the vertical adjustment mechanism includes two vertical driving members, and third sliders 311 are rotatably installed at both ends of the first mounting shaft 305, and two second vertical slide rails 109 are installed on the heating cabinet 100. Each third slide rail is slidably connected to the corresponding second vertical slide rail 109. A transmission plate is installed at the upper end of the second vertical slide rail 109, and each vertical driving member is assembled between the transmission plate and the corresponding third slide rail, and the first motor 310 is connected to the corresponding third slider 311. The vertical driving member of this embodiment can be an automatic adjustment member or a manual adjustment member, wherein the automatic adjustment member can be selected from a pneumatic cylinder or an oil cylinder, and the upper and lower ends of the automatic adjustment member are respectively connected to the transmission plate and the third slide rail, and by controlling the synchronous extension and retraction of the two automatic adjustment members, the two can drive the distribution kettle 301 to move vertically through the first mounting shaft 305, thereby achieving the purpose of vertical movement of the adjustable uniform distribution device 300, so that the distance between the first discharge port 308 of the adjustable uniform distribution device 300 and the conveyor belt 208 is within a predetermined range, so that the material feeding to the conveyor belt 208 can be carried out smoothly, and the material splashing due to being too high can be avoided, and the material discharge of the adjustable uniform distribution device 300 can be avoided due to being too low. The manual adjustment member is a vertical lead screw 312, which is threadedly connected to the transmission plate, the lower end of the vertical lead screw 312 is rotatably connected to the third slider 311, and the upper end of the vertical lead screw 312 is equipped with an operating hand wheel 313; the operator rotates the operating hand wheel 313 to drive the third slider 311 to move vertically through the vertical lead screw 312, thereby achieving the purpose of vertical movement of the adjustable uniform material distribution device 300. The inclination adjustment mechanism of this embodiment includes an oblique driving member 315, which is a cylinder or an oil cylinder, one end of the oblique driving member 315 is hinged on the material distribution kettle 301, and the other end of the oblique driving member 315 is hinged on the transverse beam 314, and the transverse beam 314 is detachably connected to the heating cabinet 100. This embodiment controls the movement of the oblique driving member 315 to drive the material distribution kettle 301 to rotate a certain angle along the axis of the first mounting shaft 305, thereby adjusting the discharge angle of the first discharge port 308 on the material distribution kettle 301, improving the discharge efficiency and avoiding the occurrence of splashing. In addition, during the frequent reciprocating movement of the oblique driving member 315, the material distribution kettle 301 is in a reciprocating swing state, and then with the cooperation of the scraping blade 307, the material in the material distribution cavity 302 is facilitated to be discharged smoothly.

[0042] As a preferred embodiment of the present invention, Figure 5 , 11-13, the roller mill type material receiving device 500 includes a material receiving kettle 501 and a roller mill mechanism. The material receiving kettle 501 includes a second kettle body, and a second feed port and a second discharge port 509 are respectively provided at the upper and lower ends of the second kettle body. A second end baffle 503 is constructed on the second kettle body and located at the second feed port. Second lateral baffles 504 are respectively constructed on both sides of the second end baffle 503. The second feed port is located between the two second lateral baffles 504. A second discharge orifice plate 510 is detachably connected at the second discharge port 509. The upper end of the second end baffle 503 extends obliquely toward the adjustable feeding device 200, and contacts with the vertical discharge portion 209 after passing through the assembly port 105. The baffle plate 106 is buckled at the second feed port to prevent material from splashing out. During the operation of the conveyor belt 208, the material discharged through the vertical discharge portion 209 enters the abrasive cavity 502 of the second kettle body through the second feed port, and the second end baffle 503 scrapes the vertical discharge portion 209 to prevent the material from being adhered to the conveyor belt 208 and unable to be removed, thereby improving the effect of material collection and avoiding waste. The material collecting kettle 501 of this embodiment is installed at the end wall 104 of the heating cabinet 100, and the roller abrasive mechanism is installed in the material collecting kettle 501. Among them, the roller abrasive mechanism includes a second mounting shaft 505, which is rotatably connected in the material collecting kettle 501, and a plurality of grinding rollers 508 are arranged in the abrasive cavity 502 of the material collecting kettle 501. These grinding rollers 508 are evenly arranged along the circumference of the second mounting shaft 505, and the two ends of each grinding roller 508 are respectively rotatably connected with an elastic telescopic rod 506, and one end of each elastic telescopic rod 506 away from the grinding roller 508 is fixedly connected to the second mounting shaft 505. The elastic telescopic rod 506 of this embodiment includes a tubular body and a rod-shaped body that are inserted into each other. One end of the tubular body away from the rod-shaped body is fixedly connected to the second installation shaft 505. One end of the rod-shaped body away from the tubular body is configured with an adapter ring 507. The adapter ring 507 is coaxially and rotationally connected to the corresponding grinding roller 508. A telescopic spring is arranged inside the tubular body. One end of the telescopic spring is fixedly connected to the inner wall of the tubular body. The other end of the telescopic spring is fixedly connected to the insertion end of the rod-shaped body. Moreover, the grinding roller 508 elastically abuts against the inner circumferential wall of the material receiving kettle 501. In this embodiment, a fixing plate 514 is installed outside the material receiving kettle 501. A second motor 513 is installed on the fixing plate 514. The output shaft of the second motor 513 is coaxially connected to one end of the second installation shaft 505.The working principle and advantages of this embodiment are as follows: this embodiment controls the action of the second motor 513 to drive the second installation shaft 505 to rotate. During the rotation process, the second installation shaft 505 drives all the grinding rollers 508 to rotate in the abrasive chamber 502, thereby grinding and turning the photoinitiator in the abrasive chamber 502. When it turns to the second end baffle 503, the photoinitiator is flipped onto the second end baffle 503, so that the photoinitiator is broken again, and then falls into the abrasive chamber 502. With the grinding and turning operation of the grinding rollers 508, the material is gradually and evenly discharged from the second discharge orifice plate 510 to the multi-tube heat exchange device 600. In order to discharge the materials smoothly into the multi-tubular heat exchange device 600 in this embodiment, a discharge hopper 511 is installed at the second discharge port 509 of the receiving kettle 501. The small diameter end of the discharge hopper 511 is a discharge port 512, and the discharge port 512 is connected to the inlet end of the multi-tubular heat exchange device 600.

[0043] As a preferred embodiment of the present invention, Figure 8 , 9 As shown, the vertical adjustable scraper device 400 includes a vertical plate 401, a scraper plate 402, an assembly seat 404 and a vertical cylinder 405. The vertical plate 401 is movably assembled on the upper end wall 102 of the heating cabinet 100, and the scraper plate 402 is constructed at the lower end of the vertical plate 401. The scraper plate 402 extends downwardly at an angle, and the lower end of the scraper plate 402 extends away from the adjustable feeding device 200. A plurality of material dividing ribs 403 are spaced apart on the lower end surface of the scraper plate 402 along the inclination direction of the scraper plate 402, and the middle part of each material dividing rib 403 extends in an inclination direction away from the vertical direction of the material. The assembly seat 404 of this embodiment is installed on the upper end wall 102, and the vertical cylinder 405 is connected between the assembly seat 404 and the upper end of the vertical plate 401. In this embodiment, the vertical cylinder 405 is controlled to drive the vertical plate 401 to drive the scraper plate 402 to move vertically, thereby adjusting the distance between the scraper plate 402 and the conveyor belt 208, so as to adjust the thickness of the photoinitiator laid on the conveyor belt 208. Moreover, since the scraper plate 402 is arranged obliquely, the material on the conveyor belt 208 is gradually scraped flat from thick to thin, thereby promoting the material to be gradually laid flat on the conveyor belt 208. And under the action of the material dividing ribs 403, the efficiency of material laying is further improved.

[0044] As a preferred embodiment of the present invention, Figure 14-16As shown, the multi-tube heat exchange device 600 includes a vertical heat exchange tube 601, a feed hopper 604, a discharge tube 609 and a plurality of vertical guide tubes 606. A medium outlet 603 and a medium inlet 602 are respectively configured at the upper and lower ends of the circumferential side wall of the vertical heat exchange tube 601, and the plurality of vertical guide tubes 606 are uniformly arranged in the vertical heat exchange tube 601 along the circumference of the vertical heat exchange tube 601, and a spiral blade 607 is configured in each vertical guide tube 606, and the spiral blade 607 spirally extends along the axis of the vertical guide tube 606 to the two ends of the vertical guide tube 606. The feed hopper 604 and the discharge barrel 609 of this embodiment are respectively arranged above and below the vertical heat exchange barrel 601. The lower end of the feed hopper 604 is evenly connected with a plurality of first curved pipes 605 along its circumference, and the upper end of the discharge barrel 609 is evenly connected with a plurality of second curved pipes 608 along its circumference. The upper and lower ends of each vertical guide pipe 606 are respectively rotatably connected with the first curved pipe 605 and the second curved pipe 608. In this embodiment, a power motor 610 is installed on the vertical heat exchange barrel 601 or the discharge hopper, and a driving gear 611 is coaxially mounted on the output shaft of the power motor 610, and a driven gear 612 is coaxially mounted on each vertical guide pipe 606, and the driving gear 611 and each driven gear 612 are meshed with each other. The working principle and advantages of this embodiment are as follows: the material enters the feed hopper 604 of this embodiment from the roller mill collecting device 500, and then is evenly distributed to each vertical guide pipe 606 through each first bend pipe 605. At the same time, the power motor 610 drives each vertical guide pipe 606 to rotate, so that the material exchanges heat with the medium in the vertical heat exchange tube 601 during the process of passing through the vertical guide pipe 606, and the efficiency of the heat exchange is promoted under the action of the spiral blade 607; at the same time, the material spirally descends in the vertical guide pipe 606, which promotes heat exchange and completely crushes the material into powder. In this embodiment, the type of medium entering the vertical heat exchange cylinder 601 can be adjusted according to the humidity of the material in the roller mill collecting device 500 to achieve the purpose of cooling or secondary drying. That is, when the humidity of the material entering the adjustable feeding device 200 is relatively high, the heating capacity of the heating cabinet 100 cannot meet the effect of complete dehydration, and generally a multi-tube heat exchange device 600 is adopted for secondary drying; when the humidity of the material entering the adjustable feeding device 200 is relatively low, the heating capacity of the heating cabinet 100 can meet the effect of complete dehydration, and generally a multi-tube heat exchange device 600 is adopted for cooling, so as to facilitate subsequent collection, packaging and other operations.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A photoinitiator drying system, characterized in that: It comprises an adjustable material feeding device installed in a heating cabinet, an adjustable material distribution device and a roller-grinding material collecting device are respectively arranged at the inlet and outlet ends of the adjustable material feeding device, a vertically adjustable scraping device is installed on the heating cabinet and located at the outlet of the adjustable material distribution device, the outlet end of the roller-grinding material collecting device is connected with the inlet end of the multi-tube heat exchange device, the photoinitiator to be dried enters the adjustable material feeding device from the inlet end of the adjustable material feeding device, and the photoinitiator after drying and heat exchange is discharged from the outlet end of the multi-tube heat exchange device and collected.

2. A photoinitiator drying system according to claim 1, characterized in that: The adjustable feeding device includes a driving roller installed at one end of the heating cabinet, and two driven rollers installed at the other end of the heating cabinet, the two driven rollers are vertically spaced apart, the driving roller is rotatably connected to the two lateral walls of the heating cabinet via a first shaft rod coaxially connected thereto, the driven roller is rotatably connected to the two lateral walls of the heating cabinet via a second shaft rod coaxially connected thereto, the driving roller and the two driven rollers are connected via a conveyor belt transmission, and one end of the first shaft rod is connected to the driving mechanism.

3. A photoinitiator drying system according to claim 2, characterized in that: Longitudinal slide rails are symmetrically installed on the two lateral walls of the heating cabinet and at the active rollers, and first sliders are rotatably connected to the two ends of the first shaft rod, each of the first sliders is slidably connected to the corresponding longitudinal slide rail, and each first slider is connected to the transverse plate through the longitudinal rod, and a longitudinal cylinder is installed on the transverse plate; first vertical slide rails are symmetrically installed on the two lateral walls of the heating cabinet and at the two driven rollers, and second sliders are rotatably connected to the two ends of each second shaft rod, each of the second sliders is slidably connected to the corresponding first vertical slide rail, and the two second sliders on the same side of the two driven rollers are connected by a vertical elastic rod.

4. A photoinitiator drying system according to claim 3, characterized in that: The driving mechanism includes a driving motor connected to the transverse plate through an adapter, a driving wheel is coaxially mounted on the output shaft of the driving motor, a driven wheel is coaxially mounted on one end of the first shaft, and the driving wheel and the driven wheel are connected through a transmission belt.

5. A photoinitiator drying system according to claim 1, characterized in that: The adjustable uniform material distribution device includes a material distribution kettle installed on the upper part of one end of the heating cabinet, a material disturbance mechanism is installed in the material distribution kettle, and a vertical adjustment mechanism and an inclination adjustment mechanism are respectively constructed between the material distribution kettle and the heating cabinet; the material disturbance mechanism includes a first installation shaft rotatably connected to the material distribution kettle, and a plurality of scraping blades are evenly connected to the first installation shaft along its circumference, and a first motor is arranged outside the material distribution kettle, and the output shaft of the first motor is coaxially connected to one end of the first installation shaft.

6. A photoinitiator drying system according to claim 5, characterized in that: The material distribution kettle includes a first kettle body with a first feed port and a first discharge port respectively opened at the upper and lower ends, a first end baffle is constructed on the first kettle body and located at the first feed port, first lateral baffles are constructed on both sides of the first end baffle respectively, the first feed port is located between the two first lateral baffles, and a first discharge orifice plate is detachably connected to the first discharge port.

7. A photoinitiator drying system according to claim 5, characterized in that: The vertical adjustment mechanism includes two third sliders rotatably installed at both ends of the first installation shaft respectively, two second vertical slide rails are installed on the heating cabinet, each third slide rail is slidably connected to the corresponding second vertical slide rail, a transmission plate is installed at the upper end of each second vertical slide rail, a vertical driving member is assembled between the transmission plate and the corresponding third slide rail, and the first motor is connected to the corresponding third slider; the inclination adjustment mechanism includes an oblique driving member with one end hinged on the material distribution kettle, and the other end of the oblique driving member is hinged on the transverse beam, and the transverse beam is detachably connected to the heating cabinet.

8. A photoinitiator drying system according to claim 1, characterized in that: The roller grinding material collecting device includes a material collecting kettle installed at the end wall of the heating cabinet, and a roller grinding mechanism is installed in the material collecting kettle; the roller grinding mechanism includes a second installation shaft rotatably connected to the material collecting kettle, and a plurality of grinding rollers are evenly connected to the second installation shaft along its circumference, and both ends of each grinding roller are rotatably connected to an elastic telescopic rod, and one end of each elastic telescopic rod away from the grinding roller is fixedly connected to the second installation shaft, and a second motor is arranged outside the material collecting kettle, and the output shaft of the second motor is coaxially connected to one end of the second installation shaft.

9. A photoinitiator drying system according to claim 1, characterized in that: The vertically adjustable scraper device includes a vertical plate movably mounted on the upper end wall of the heating cabinet, a scraper plate extending obliquely downward is constructed at the lower end of the vertical plate, and the lower end of the scraper plate extends back to the adjustable feeding device, and a plurality of dividing ribs are constructed at intervals along the inclination direction of the scraper plate on the lower end surface of the scraper plate, and the middle portion of each of the dividing ribs extends obliquely back to the vertical direction of the material, an assembly seat is installed on the upper end wall, and a vertical cylinder is connected between the assembly seat and the upper end of the vertical plate.

10. A photoinitiator drying system according to claim 1, characterized in that: The multi-tube heat exchange device includes a vertical heat exchange tube with a medium outlet and a medium inlet respectively constructed at the upper and lower ends of the circumferential side wall, a plurality of vertical guide pipes are evenly arranged along the circumference of the vertical heat exchange tube, and a spiral blade extending spirally along the axis thereof is constructed in each of the vertical guide pipes, a feed hopper and a discharge tube are respectively arranged above and below the vertical heat exchange tube, a plurality of first curved pipes are evenly connected to the lower end of the feed hopper along the circumference, and a plurality of second curved pipes are evenly connected to the upper end of the discharge tube along the circumference, and the upper and lower ends of each vertical guide pipe are rotatably connected to the first curved pipe and the second curved pipe respectively, a power motor is installed on the vertical heat exchange tube or the discharge hopper, a driving gear is coaxially mounted on the output shaft of the power motor, and a driven gear is coaxially mounted on each vertical guide pipe, and the driving gear and each driven gear are meshed with each other.

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