A large-capacity storage device for methyltetrahydrophthalic anhydride and a method of using the same

Abstract

The invention provides a large-capacity storage device for methyltetrahydrophthalic anhydride and a use method thereof, and relates to the technical field of chemical product storage equipment. The device comprises a storage tank, wherein an air cavity is provided inside the storage tank, the air cavity is connected to an air injection pipe, a central disk is fixedly installed at the center of the storage tank, fluororubber sealing rings are installed at both ends of the central disk, first drive motors are symmetrically arranged inside the central disk, first rotating shafts are installed on the output ends of two first drive motors, stirring blades are symmetrically and equidistantly installed on the two first rotating shafts, an extension plate is slidably installed inside each stirring blade, and a second spring is symmetrically and fixedly installed on the side wall of each extension plate. The device realizes the integration of stirring and dispersing functions, and through the dispersing operation, the catalyst can be uniformly suspended in the methyltetrahydrophthalic anhydride in the form of single particles or extremely small agglomerates, so as to ensure that the catalyst plays a role in the whole system and avoid the situation that the local performance difference of the methyltetrahydrophthalic anhydride is too large.

Description

Technical Field

[0001] The present invention belongs to the technical field of chemical product storage equipment, and more specifically, particularly relates to a large-capacity storage device for methyltetrahydrophthalic anhydride and a use method thereof. Background Art

[0002] Methyltetrahydrophthalic anhydride is a new type of liquid organic acid anhydride epoxy resin curing agent with excellent performance. Since acid anhydride curing agents have better heat resistance and chemical stability than amine curing agents, and can still maintain excellent physical and electrical properties at higher temperatures, methyltetrahydrophthalic anhydride is mostly stored in storage tanks; However, the existing storage device for methyltetrahydrophthalic anhydride still has the following disadvantages when used: 1. Methyltetrahydrophthalic anhydride is prone to precipitation during long-term storage. When precipitation occurs, the existing storage device lacks an effective stirring and mixing mechanism and does not have an efficient catalyst dispersion function, making it difficult to uniformly suspend the catalyst in the form of single particles or extremely small aggregates in the methyltetrahydrophthalic anhydride. This makes it difficult for the catalyst to fully play its role in the methyltetrahydrophthalic anhydride solution, and it is easy to have a situation where the local performance difference of methyltetrahydrophthalic anhydride is too large; 2. The existing storage device cannot adjust the material receiving position according to the size and specifications of the receiving container during the material unloading process, which causes methyltetrahydrophthalic anhydride to easily sputter during material unloading. This not only causes material waste and increases production costs, but also the sputtered materials may cause harm to operators and the surrounding environment, posing a safety hazard. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a large-capacity storage device for methyltetrahydrophthalic anhydride and a method for using the same to solve the above problems.

[0004] A large-capacity storage device for methyltetrahydrophthalic anhydride comprises a storage tank, scale bars are arranged on both sides of the storage tank, a feed window is symmetrically installed on the upper end of the storage tank, an air injection pipe is fixedly installed on the side wall of the storage tank, a first liquid injection pipe and a second liquid injection pipe are symmetrically arranged on the upper and lower ends of the storage tank, an air cavity is opened inside the storage tank, the air cavity and the air injection pipe are connected, a center disk is fixedly installed at the center of the storage tank, fluororubber sealing rings are installed on both ends of the center disk, a first drive motor is symmetrically arranged inside the center disk, a first rotating shaft is installed on the output ends of two first drive motors, the two first rotating shafts are rotatably installed in two fluororubber sealing rings respectively, and a first liquid injection port is opened on the two first rotating shafts. Stirring blades are symmetrically and equidistantly installed on the two first rotating shafts, an extension plate is slidably installed inside each of the stirring blades, a second spring is symmetrically and fixedly installed on the side wall of each extension plate, one end of each group of the second springs away from each extension plate is respectively fixedly connected to each stirring blade, a dispersion blade is fixedly installed on each of the extension plates, stirring plates are symmetrically and fixedly installed on the two first rotating shafts, two groups of stirring plates are provided with confluence grooves, two groups of center plates, fluororubber sealing rings and stirring plates are provided with second liquid injection ports connected to the first liquid injection ports, support bars are symmetrically and fixedly installed on the lower end of the storage tank, first slide grooves are provided inside the two support bars, and a control panel is fixedly installed on the support bar on the left.

[0005] Preferably, both ends of the storage tank are provided with feed pipes, electric valves are installed on the two feed pipes, inner grooves are opened inside the two feed pipes, and threaded grooves are opened inside the two inner grooves.

[0006] Preferably, the two inner grooves are both threadedly installed with a first threaded ring, the two threaded grooves are both threadedly installed with an external threaded drainage disk, the two external threaded drainage disks are both fixedly installed with a drainage rod, and the lower end of the external threaded drainage disk is evenly and equidistantly fixed with a first spring.

[0007] Preferably, a first scraper is fixedly installed on one end of the four first springs away from the external threaded drainage disk, a second scraper is fixedly installed on the inner wall of the first scraper, the second scraper is slidably sleeved on the drainage rod, and welding frames are symmetrically fixedly installed on the two first drive motors, and the ends of the two groups of welding frames away from the first drive motors are welded to the inner wall of the center disk.

[0008] Preferably, a connecting plate is fixedly installed between the two support bars, a U-shaped frame is fixedly installed on the upper end of the connecting plate, a second drive motor is fixedly installed on the upper end of the U-shaped frame, a second rotating shaft is installed on the output end of the second drive motor, and a gear is fixedly installed on the lower end of the second rotating shaft.

[0009] Preferably, racks are slidably installed inside the two first slide grooves, and the two racks are symmetrically distributed around the center point of the connecting plate. Side panels are fixedly installed on the opposite ends of the two support bars, and rectangular grooves are opened on the two side panels, and fixing bars are symmetrically fixedly installed on the two side panels.

[0010] Preferably, a lifting seat is slidably installed inside the two rectangular grooves, and an inclined groove is opened on the opposite ends of the two lifting seats. A baffle is fixedly installed on the upper end of the lifting seat, and second sliding grooves are evenly and equidistantly opened inside the baffle.

[0011] Preferably, a clamping block is slidably mounted inside each of the second sliding grooves, a third spring is fixedly mounted on each of the clamping blocks, and one end of each of the third springs away from the clamping block is fixedly connected to the baffle.

[0012] Preferably, a storage tray is provided inside the baffle plate, the storage tray is fixedly connected to the lifting seat, a threaded hole is provided inside the storage tray, a threaded column is threadedly installed inside the threaded hole, and a climbing frame is fixedly installed on the storage tank and the two side panels.

[0013] In order to overcome the deficiencies of the prior art, the present invention also provides a method for using a large-capacity storage device for methyltetrahydrophthalic anhydride, comprising the following steps: S1: When in use, the operator can climb the climbing frame and put different concentrations of methyltetrahydrophthalic anhydride into the storage tank through the feeding window, and then inject nitrogen into the air cavity through the gas injection pipe, and then control the first drive motor to start through the control panel, and rotate the two sets of stirring plates to a vertical state. At this time, the heated or cooled heat transfer oil can be selectively injected into the first liquid injection pipe. At this time, the heat transfer oil will be injected into the center plate, the fluororubber sealing ring, the first rotating shaft and the stirring plate. Under the rotation of the stirring plate, the heat transfer oil will flow inside. At this time, the heat transfer oil is in full contact with the inner wall of the stirring plate, and the heat is transferred to the stirring plate. The heated stirring plate is in direct contact with the methyltetrahydrophthalic anhydride. Due to the temperature difference, the methyltetrahydrophthalic anhydride is heated or cooled; S2: When methyltetrahydrophthalic anhydride is left for a long time and precipitates, the two first drive motors can be controlled to start through the control panel. When the amount of methyltetrahydrophthalic anhydride in the storage tank is large, the two first rotating shafts will be driven to rotate under the start of the two first drive motors. The rotation of the two first rotating shafts will drive the two sets of stirring blades and stirring plates to rotate accordingly, thereby stirring and mixing the methyltetrahydrophthalic anhydride in the storage tank. When the amount of methyltetrahydrophthalic anhydride in the storage tank is small, the two stirring plates can be driven to rotate slowly. Under the slow rotation of the two stirring plates, the methyltetrahydrophthalic anhydride in the storage tank will flow to the middle through the two sets of confluence grooves for mixing. When methyltetrahydrophthalic anhydride is stored for a long time, the two first rotating shafts will rotate. The two stirring plates will rotate slowly. When the sedimentation inside the storage tank is serious, solid catalyst can be added into the storage tank, and then the first drive motor drives the first rotating shaft and the stirring blade to stir it. The control panel controls the first rotating shaft to speed up. At this time, the stirring blade will generate centrifugal force under the rapid rotation. Under the action of centrifugal force, the extension plate will slide out of the stirring blade until the extension plate contacts the inner wall of the storage tank. At this time, the second spring will be stretched. At this time, the solid catalyst can be finely dispersed by the dispersing blade on the extension plate. When dispersion is not needed, the control panel can be used to control the first rotating shaft to resume the rotation speed, and then the second spring will restore the deformation to drive the extension plate to retract into the stirring blade. S3: When receiving materials, the two threaded columns can be screwed out of the threaded holes, and then the receiving barrel can be pressed down and placed inside the baffle. When the receiving barrel is pressed down, it will squeeze the clamping block, and the clamping block will drive the third spring to stretch, thereby generating a reverse elastic force, and under the action of the elastic force, the clamping block is driven to connect with the barrel to clamp and fix it; S4: Then the control panel is used to control the second drive motor to start, and the second drive motor will drive the second rotating shaft and the gear to rotate. The rotation of the gear will drive the two racks to slide in opposite directions in the two first slide grooves. At this time, the two racks will slide into the two inclined grooves respectively, and the two lifting seats will move upward under the action of the extrusion force, thereby adjusting the distance between the docking barrel and the discharge pipe; S5: After the receiving barrel is placed, the electric valve is controlled to start through the control panel, and the discharge pipe will be opened at this time, and the methyltetrahydrophthalic anhydride inside the storage tank will flow out along the discharge pipe. At this time, the methyltetrahydrophthalic anhydride will first flow to the middle along the external threaded drainage disk, and then flow into the receiving barrel after being drained by the drainage rod to complete the material receiving; S6: The liquid level of methyltetrahydrophthalic anhydride can be observed through the scale bar. When the methyltetrahydrophthalic anhydride material in the storage tank is exhausted and needs to be cleaned, clean water can be injected into the storage tank through the feed window, and then the clean water in the storage tank is stirred by the stirring blade to clean the inner wall of the storage tank. At this time, the two threaded columns can be installed back into the threaded holes, and the second drive motor can be started. The gear is controlled to rotate forward and reversely through the second drive motor. When the gear rotates clockwise, the two racks move in opposite directions. At this time, the two lifting seats move upward inside the two rectangular grooves, and the two threaded columns will also move upward accordingly. The two threaded columns will move, and the two threaded columns will extend into the first scraper and contact the second scraper, which will drive the second scraper and the first scraper to slide in the outer wall of the drainage rod and the inner wall of the discharge pipe respectively, thereby cleaning the outer wall of the drainage rod and the inner wall of the discharge pipe. At this time, the first spring will be compressed accordingly. When the gear rotates counterclockwise, the two racks move relatively. At this time, the two threaded columns will move downward, and the first spring will restore its deformation. The two second scrapers and the first scraper will also move downward. The second scraper and the first scraper can clean the inside of the discharge pipe when moving up and down to remove residual methyltetrahydrophthalic anhydride.

[0014] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, by providing a storage tank, an air injection pipe, an air cavity, a first drive motor, a first rotating shaft, a stirring blade, an extension plate, a second spring, a dispersing blade, a stirring plate, a confluence groove and a control panel, it is possible to achieve the effect of classified storage for methyltetrahydrophthalic anhydride of different concentrations, and nitrogen can be injected into the air cavity through the air injection pipe to block the invasion of external moisture, thereby achieving a moisture-proof effect. When the methyltetrahydrophthalic anhydride is left for a long time and precipitates, the two first drive motors can be controlled to start through the control panel. When the amount of methyltetrahydrophthalic anhydride in the storage tank is large, the two first rotating shafts will be driven to rotate under the start of the two first drive motors, and the rotation of the two first rotating shafts will drive the two groups of stirring blades and stirring plates to rotate accordingly, thereby stirring and mixing the methyltetrahydrophthalic anhydride in the storage tank. When the amount of methyltetrahydrophthalic anhydride in the storage tank is small, the two stirring plates can be driven to rotate slowly. Under the slow rotation of the two stirring plates, the methyltetrahydrophthalic anhydride in the storage tank will flow to the middle through the two groups of confluence grooves for mixing, and the flow direction of the methyltetrahydrophthalic anhydride is controlled. The control enhances the mixing and anti-precipitation effect of the equipment. When the methyltetrahydrophthalic anhydride is seriously precipitated inside the storage tank after long-term storage, a solid catalyst can be added to the storage tank, and then the first drive motor drives the first rotating shaft and the stirring blade to stir it. The control panel controls the first rotating shaft to speed up. At this time, the stirring blade will generate centrifugal force under the rapid rotation. Under the action of the centrifugal force, the extension plate will slide out of the stirring blade until the extension plate contacts the inner wall of the storage tank. At this time, the second spring will be stretched. At this time, the solid catalyst can be finely dispersed by the dispersing blade on the extension plate. When dispersion is not required, the control panel can be used to control the first rotating shaft to restore the speed, and then the second spring will restore the deformation to drive the extension plate to retract into the stirring blade. The equipment realizes the integration of stirring and dispersing functions. Through the dispersion operation, the catalyst can be evenly suspended in the methyltetrahydrophthalic anhydride in the form of single particles or extremely small agglomerates, ensuring that it plays a role in the entire system and avoiding the situation where the local performance difference of methyltetrahydrophthalic anhydride is too large.

[0015] In the present invention, by providing a first injection pipe, a center plate, a first rotating shaft, a stirring plate and a fluororubber sealing ring, the heated or cooled heat transfer oil can be selectively injected into the first injection pipe. At this time, the heat transfer oil will be injected into the center plate, the fluororubber sealing ring, the first rotating shaft and the stirring plate. Under the rotation of the stirring plate, the heat transfer oil will flow inside them. At this time, the heat transfer oil is fully in contact with the inner wall of the stirring plate, and the heat is transferred to the stirring plate. The heated stirring plate is in direct contact with methyltetrahydrophthalic anhydride. Due to the temperature difference, the heating or cooling of methyltetrahydrophthalic anhydride is achieved. During the rotating stirring process, the stirring plate continuously contacts with methyltetrahydrophthalic anhydride at different positions, so that the material is heated or cooled more evenly. For example, when preventing methyltetrahydrophthalic anhydride from crystallizing during storage, the material temperature can be controlled within a suitable range in this way; In the present invention, a storage tank, a feeding pipe, an external thread drainage disk, a drainage rod and a control panel are provided, and the electric valve can be controlled to start through the control panel, at which time the feeding pipe will be opened, and the methyltetrahydrophthalic anhydride inside the storage tank will flow out along the feeding pipe. At this time, the methyltetrahydrophthalic anhydride will first flow to the middle along the external thread drainage disk, and then flow down after being drained by the drainage rod, so that the device is not prone to sputtering when the methyltetrahydrophthalic anhydride is fed, thereby enhancing the safety of feeding and effectively avoiding the waste of methyltetrahydrophthalic anhydride; In the present invention, by providing a feed tube, a first slide slot, a control panel, a second drive motor, a second rotating shaft, a gear, a rack, a lifting seat, an inclined slot, a baffle, a clamping block, a third spring, a threaded hole and a threaded column, when receiving the material, the two threaded columns can be screwed out of the threaded hole first, and then the receiving barrel can be pressed downward and placed inside the baffle; when the receiving barrel is pressed downward, it will squeeze the clamping block, and the clamping block will drive the third spring to stretch accordingly, thereby generating a reverse elastic force, and under the action of the elastic force, the clamping block is driven to clamp and fix the barrel, which effectively avoids its dislocation during the material receiving process and enhances the accuracy of material receiving. The second drive motor can be started through the control panel, and the second drive motor will drive the second shaft and the gear to rotate. The rotation of the gear will drive the two racks to slide in opposite directions in the two first chutes. At this time, the two racks will slide into the two chute respectively, and the two lifting seats will move upward under the action of the extrusion force, so that the equipment can adjust the distance between the docking barrel and the discharge pipe according to the demand. Through the adjustment, the methyltetrahydrophthalic anhydride material can fall smoothly into the receiving barrel, further reducing the occurrence of splashing, thereby reducing the waste of materials. In the present invention, by providing a storage tank, a feed window, a feed pipe, a drainage rod, a first spring, a first scraper, a second scraper, a stirring blade, a second drive motor, a gear, a rack, a rectangular groove, a lifting seat, a threaded hole and a threaded column, clean water can be injected into the storage tank through the feed window, and then the clean water inside the storage tank is stirred by the stirring blade, so as to clean the inner wall of the storage tank. At this time, the two threaded columns can be installed back into the threaded holes, and the second drive motor can be started at this time. The gear is controlled to rotate forward and reversely by the second drive motor. When the gear rotates clockwise, the two racks move in opposite directions. At this time, the two lifting seats move upward in the two rectangular grooves, and the two threaded columns will also move upward accordingly. The two threaded columns will extend The first scraper enters the first scraper and contacts the second scraper, which will drive the second scraper and the first scraper to slide in the outer wall of the drainage rod and the inner wall of the discharge pipe respectively, thereby cleaning the outer wall of the drainage rod and the inner wall of the discharge pipe. At this time, the first spring will be compressed accordingly. When the gear rotates counterclockwise, the two racks move relative to each other. At this time, the two threaded columns will move downward, and the first spring will restore its deformation. The two second scrapers and the first scraper will also move downward. The second scraper and the first scraper can clean the inside of the discharge pipe when moving up and down, and remove residual methyltetrahydrophthalic anhydride. This self-cleaning function can reduce the workload of manual cleaning, ensure the unobstructed discharge channel, reduce the risk of cross-contamination of materials, and improve the performance of storage equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the storage tank connection structure of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the storage tank of the present invention; Figure 4 It is a schematic diagram of the drainage rod connection explosion structure of the present invention; Figure 5 It is a schematic diagram of the center disk connection explosion structure of the present invention; Figure 6 It is a schematic diagram of the explosion structure of the stirring blade connection of the present invention; Figure 7 It is a schematic diagram of the explosion structure of the connecting plate connection of the present invention; Figure 8 It is a schematic diagram of the lifting seat connection explosion structure of the present invention; Fig. 9 It is a schematic diagram of the explosion structure of the clamp block connection of the present invention.

[0017] In the figure, the corresponding relationship between the names of the components and the numbers of the accompanying drawings is as follows: 11, storage tank; 12, scale bar; 13, feed window; 14, gas injection pipe; 15, first liquid injection pipe; 16, second liquid injection pipe; 17, air cavity; 21, feed pipe; 22, electric valve; 23, inner groove; 24, thread groove; 25, first thread ring; 26, external thread drainage plate; 27, drainage rod; 28, first spring; 29, first scraper; 31, second scraper; 32, center plate; 33, first drive motor; 34, welding frame; 35, first rotating shaft; 36, first liquid injection port; 37, stirring blade; 38, Extension plate; 39, second spring; 41, dispersion blade; 42, stirring plate; 43, confluence trough; 51, support bar; 52, first slide; 53, control panel; 54, connecting plate; 55, U-shaped frame; 56, second drive motor; 57, second rotating shaft; 58, gear; 59, rack; 61, side plate; 62, rectangular groove; 63, fixing bar; 64, lifting seat; 65, inclined groove; 66, baffle plate; 67, second slide; 68, clamping block; 69, third spring; 71, storage tray; 72, threaded hole; 73, threaded column; 74, climbing frame; 75, fluororubber sealing ring. DETAILED DESCRIPTION

[0018] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] See also Figure 1-Figure 9The present invention provides a large-capacity storage device for methyltetrahydrophthalic anhydride, comprising a storage tank 11, scale bars 12 are arranged on both sides of the storage tank 11, a feed window 13 is symmetrically installed on the upper end of the storage tank 11, an air injection pipe 14 is fixedly installed on the side wall of the storage tank 11, a first liquid injection pipe 15 and a second liquid injection pipe 16 are symmetrically arranged on the upper and lower ends of the storage tank 11, an air cavity 17 is opened inside the storage tank 11, and the air cavity 17 is connected to the air injection pipe 14, a center disk 32 is fixedly installed at the center of the storage tank 11, fluororubber sealing rings 75 are installed on both ends of the center disk 32, and first drive motors 33 are symmetrically arranged inside the center disk 32, first rotating shafts 35 are installed on the output ends of the two first drive motors 33, the two first rotating shafts 35 are respectively rotatably installed in the two fluororubber sealing rings 75, and the two first rotating shafts 35 are opened with first liquid injection ports 36, stirring blades 37 are symmetrically and equidistantly installed on the two first rotating shafts 35, an extension plate 38 is slidably installed inside each stirring blade 37, a second spring 39 is symmetrically fixedly installed on the side wall of each extension plate 38, one end of each group of second springs 39 away from each extension plate 38 is fixedly connected to each stirring blade 37, a dispersion blade 41 is fixedly installed on each extension plate 38, stirring plates 42 are symmetrically fixedly installed on the two first rotating shafts 35, two groups of stirring plates 42 are provided with a confluence groove 43, two groups of center disks 32, fluororubber sealing rings 75 and stirring plates 42 are provided with a second liquid injection port connected to the first liquid injection port 36, a support bar 51 is symmetrically fixedly installed on the lower end of the storage tank 11, two support bars 51 are provided with a first slide groove 52, and a control panel 53 is fixedly installed on the support bar 51 on the left.

[0020] Preferably, both ends of the storage tank 11 are provided with feed pipes 21 , electric valves 22 are installed on the two feed pipes 21 , inner grooves 23 are provided inside the two feed pipes 21 , and threaded grooves 24 are provided inside the two inner grooves 23 .

[0021] Preferably, the two inner grooves 23 are both threadedly installed with a first threaded ring 25, the two threaded grooves 24 are both threadedly installed with an external threaded drainage disk 26, the two external threaded drainage disks 26 are both fixedly installed with drainage rods 27, and the lower ends of the external threaded drainage disks 26 are evenly and equidistantly fixed with first springs 28.

[0022] Preferably, a first scraper 29 is fixedly installed on one end of the four first springs 28 away from the external threaded drainage disk 26, a second scraper 31 is fixedly installed on the inner wall of the first scraper 29, the second scraper 31 is slidably sleeved on the drainage rod 27, and welding frames 34 are symmetrically fixedly installed on the two first drive motors 33, and the ends of the two sets of welding frames 34 away from the first drive motors 33 are welded to the inner wall of the center disk 32.

[0023] Preferably, a connecting plate 54 is fixedly installed between the two support bars 51, a U-shaped frame 55 is fixedly installed on the upper end of the connecting plate 54, a second drive motor 56 is fixedly installed on the upper end of the U-shaped frame 55, a second rotating shaft 57 is installed on the output end of the second drive motor 56, and a gear 58 is fixedly installed on the lower end of the second rotating shaft 57.

[0024] Preferably, racks 59 are slidably installed inside the two first slide grooves 52, and the two racks 59 are symmetrically distributed around the center point of the connecting plate 54. Side panels 61 are fixedly installed on the opposite ends of the two support bars 51, and rectangular grooves 62 are opened on the two side plates 61, and fixing bars 63 are symmetrically fixedly installed on the two side plates 61.

[0025] Preferably, a lifting seat 64 is slidably installed inside the two rectangular grooves 62, and an inclined groove 65 is opened on the opposite ends of the two lifting seats 64. A baffle plate 66 is fixedly installed on the upper end of the lifting seat 64, and second sliding grooves 67 are evenly and equidistantly opened inside the baffle plate 66.

[0026] Preferably, a clamping block 68 is slidably mounted inside each second sliding groove 67 , a third spring 69 is fixedly mounted on each clamping block 68 , and one end of each third spring 69 away from the clamping block 68 is fixedly connected to the baffle 66 .

[0027] Preferably, a storage tray 71 is provided inside the baffle plate 66 , and the storage tray 71 is fixedly connected to the lifting seat 64 . A threaded hole 72 is provided inside the storage tray 71 , and a threaded column 73 is threadedly installed inside the threaded hole 72 . A climbing frame 74 is fixedly installed on the storage tank 11 and the two side panels 61 .

[0028] In order to overcome the deficiencies of the prior art, the present invention also provides a method for using a large-capacity storage device for methyltetrahydrophthalic anhydride, comprising the following steps: S1: When in use, the operator can climb the climbing frame 74 and put different concentrations of methyltetrahydrophthalic anhydride into the storage tank 11 through the feed window 13, and then inject nitrogen into the air cavity 17 through the gas injection pipe 14, and then control the first drive motor 33 to start through the control panel 53, and rotate the two groups of stirring plates 42 to a vertical state. At this time, the heated or cooled heat transfer oil can be selectively injected into the first injection pipe 15. At this time, the heat transfer oil will be injected into the central disk 32, the fluororubber sealing ring 75, the first rotating shaft 35 and the stirring plate 42. Under the rotation of the stirring plate 42, the heat transfer oil will flow inside it. At this time, the heat transfer oil is in full contact with the inner wall of the stirring plate 42, and the heat is transferred to the stirring plate 42. The heated stirring plate 42 is in direct contact with the methyltetrahydrophthalic anhydride. Due to the temperature difference, the methyltetrahydrophthalic anhydride is heated or cooled; S2: When methyltetrahydrophthalic anhydride is left for a long time and precipitates, the two first drive motors 33 can be controlled to start through the control panel 53. When the amount of methyltetrahydrophthalic anhydride in the storage tank 11 is large, the two first drive motors 33 will drive the two first rotating shafts 35 to rotate under the start-up. The rotation of the two first rotating shafts 35 will drive the two groups of stirring blades 37 and the stirring plate 42 to rotate accordingly, thereby stirring and mixing the methyltetrahydrophthalic anhydride in the storage tank 11. When the amount of methyltetrahydrophthalic anhydride in the storage tank 11 is small, the two stirring plates 42 can be driven to rotate slowly. Under the slow rotation of the two stirring plates 42, the methyltetrahydrophthalic anhydride in the storage tank 11 will flow to the middle through the two groups of confluence grooves 43 for mixing. When the methyltetrahydrophthalic anhydride in the storage tank 11 is stored for a long time, the storage tank 11 will be filled with methyltetrahydrophthalic anhydride. When the internal precipitation is serious, solid catalyst can be added into the storage tank 11, and then the first drive motor 33 drives the first rotating shaft 35 and the stirring blade 37 to stir the catalyst. The control panel 53 controls the first rotating shaft 35 to speed up. At this time, the stirring blade 37 will generate centrifugal force under the rapid rotation. Under the action of the centrifugal force, the extension plate 38 will slide out of the stirring blade 37 until the extension plate 38 contacts the inner wall of the storage tank 11. At this time, the second spring 39 will be stretched. At this time, the solid catalyst can be finely dispersed by the dispersing blade 41 on the extension plate 38. When dispersion is not needed, the control panel 53 can be used to control the first rotating shaft 35 to resume the rotation speed, and then the second spring 39 will restore the deformation and drive the extension plate 38 to retract into the stirring blade 37. S3: When receiving the material, the two threaded columns 73 can be screwed out of the threaded holes 72, and then the receiving barrel can be pressed downward and placed inside the baffle 66. When the receiving barrel is pressed downward, it will squeeze the clamping block 68, and the clamping block 68 will drive the third spring 69 to stretch, thereby generating a reverse elastic force, and under the action of the elastic force, the clamping block 68 is driven to clamp and fix the receiving barrel; S4: Then the control panel 53 is used to control the second drive motor 56 to start, and the second drive motor 56 will drive the second rotating shaft 57 and the gear 58 to rotate. The rotation of the gear 58 will drive the two racks 59 to slide in opposite directions in the two first slide grooves 52, and the two racks 59 will slide into the two inclined grooves 65 respectively. The two lifting seats 64 will move upward under the action of the extrusion force, and then the distance between the docking barrel and the discharge pipe 21 is adjusted; S5: After the receiving barrel is placed, the control panel 53 controls the electric valve 22 to start, and the discharge pipe 21 will be opened. The methyltetrahydrophthalic anhydride in the storage tank 11 will flow out along the discharge pipe 21. At this time, the methyltetrahydrophthalic anhydride will first flow to the middle along the external threaded drainage disk 26, and then flow into the receiving barrel after being drained by the drainage rod 27 to complete the material receiving; S6: The methyltetrahydrophthalic anhydride liquid level can be observed through the scale bar 12. When the methyltetrahydrophthalic anhydride material in the storage tank 11 is discharged and needs to be cleaned, clean water can be injected into the storage tank 11 through the feed window 13, and then the clean water in the storage tank 11 is stirred by the stirring blade 37 to clean the inner wall of the storage tank 11. At this time, the two threaded columns 73 can be installed back into the threaded holes 72, and the second drive motor 56 can be started. The gear 58 is controlled to rotate forward and reversely by the second drive motor 56. When the gear 58 rotates clockwise, the two racks 59 move in opposite directions. At this time, the two lifting seats 64 move upward inside the two rectangular grooves 62, and the two threaded columns 73 will also move upward accordingly. When the gear 58 rotates counterclockwise, the two racks 59 move relative to each other. At this time, the two threaded columns 73 will move downward, and the first spring 28 will restore its deformation. The two second scrapers 31 and the first scraper 29 will also move downward. The second scraper 31 and the first scraper 29 can clean the inside of the discharge pipe 21 when they move up and down, and remove residual methyltetrahydrophthalic anhydride.

[0029] Working principle: In the first step, when in use, the operator can climb the climbing frame 74 and put different concentrations of methyltetrahydrophthalic anhydride into the storage tank 11 through the feed window 13. The different concentrations of methyltetrahydrophthalic anhydride will be separated by the central plate 32. By designing the storage tank 11 as a partitioned type, it can play the effect of classified storage for methyltetrahydrophthalic anhydride of different concentrations. Then, nitrogen can be injected into the air cavity 17 through the gas injection pipe 14 to block the invasion of external moisture and achieve a moisture-proof effect. When the methyltetrahydrophthalic anhydride is left for a long time and precipitates, the two first drive motors 33 can be controlled to start through the control panel 53. When the storage tank When the amount of methyltetrahydrophthalic anhydride in the storage tank 11 is large, the two first drive motors 33 are started to drive the two first rotating shafts 35 to rotate, and the two first rotating shafts 35 are rotated to drive the two groups of stirring blades 37 and the stirring plate 42 to rotate, thereby stirring and mixing the methyltetrahydrophthalic anhydride in the storage tank 11. When the amount of methyltetrahydrophthalic anhydride in the storage tank 11 is small, the two stirring plates 42 can be driven to rotate slowly. Under the slow rotation of the two stirring plates 42, the methyltetrahydrophthalic anhydride in the storage tank 11 will flow to the middle through the two groups of confluence grooves 43 for mixing, and the methyltetrahydrophthalic anhydride in the storage tank 11 will be stirred and mixed. The flow direction of methyltetrahydrophthalic anhydride is controlled to enhance the mixing and anti-precipitation effect of the device. When the methyltetrahydrophthalic anhydride is seriously precipitated inside the storage tank 11 after long-term storage, a solid catalyst can be added to the storage tank 11, and then the first drive motor 33 drives the first rotating shaft 35 and the stirring blade 37 to stir it. The control panel 53 controls the first rotating shaft 35 to speed up. At this time, the stirring blade 37 will generate centrifugal force under the action of centrifugal force. Under the action of centrifugal force, the extension plate 38 will slide out of the stirring blade 37 until the extension plate 38 contacts the inner wall of the storage tank 11. At this time, the second spring 39 Stretching will then occur, and at this time, the solid catalyst can be finely dispersed by the dispersing blade 41 on the extension plate 38. When dispersion is not required, the first rotating shaft 35 can be controlled by the control panel 53 to restore the rotation speed, and then the second spring 39 will restore the deformation to drive the extension plate 38 to retract into the stirring blade 37. The device realizes the integration of stirring and dispersing functions. Through the dispersing operation, the catalyst can be evenly suspended in the methyltetrahydrophthalic anhydride in the form of single particles or extremely small agglomerates, ensuring that it plays a role in the entire system and avoiding the situation where the local performance difference of methyltetrahydrophthalic anhydride is too large; The second step is to start the first drive motor 33 through the control panel 53 during use, and rotate the two groups of stirring plates 42 to a vertical state. At this time, the heated or cooled heat transfer oil can be selectively injected into the first injection pipe 15. At this time, the heat transfer oil will be injected into the central disk 32, the fluororubber sealing ring 75, the first rotating shaft 35 and the stirring plate 42. Under the rotation of the stirring plate 42, the heat transfer oil will flow inside. At this time, the heat transfer oil is in full contact with the inner wall of the stirring plate 42, and the heat is transferred to the stirring plate 42. The heated stirring plate 42 is in direct contact with the methyltetrahydrophthalic anhydride. Due to the temperature difference, the methyltetrahydrophthalic anhydride is heated or cooled. During the rotating stirring process, the stirring plate 42 is constantly in contact with the methyltetrahydrophthalic anhydride at different positions, so that the material is heated or cooled more evenly. For example, when preventing the crystallization of methyltetrahydrophthalic anhydride during storage, the material temperature can be controlled within a suitable range in this way; The third step is that when unloading is required, the electric valve 22 can be controlled to start through the control panel 53, and the unloading pipe 21 will be opened, and the methyltetrahydrophthalic anhydride inside the storage tank 11 will flow out along the unloading pipe 21. At this time, the methyltetrahydrophthalic anhydride will first flow to the middle along the external threaded drainage disk 26, and then flow down after being drained by the drainage rod 27, so that the device is not prone to sputtering when unloading the methyltetrahydrophthalic anhydride, thereby enhancing the safety of unloading and effectively avoiding the waste of methyltetrahydrophthalic anhydride; In the fourth step, when receiving the material, the two threaded columns 73 can be screwed out of the threaded holes 72 first, and then the receiving barrel can be pressed downward and placed inside the baffle 66. When the receiving barrel is pressed downward, it will squeeze the clamping block 68, and the clamping block 68 will drive the third spring 69 to stretch, thereby generating a reverse elastic force. Under the action of this elastic force, the clamping block 68 is driven to clamp and fix the connecting barrel, effectively avoiding its misalignment during the material receiving process and enhancing the accuracy of material receiving. At this time, the second drive motor 56 can also be controlled to start through the control panel 53, and the second drive motor 56 will The second rotating shaft 57 and the gear 58 are driven to rotate. The rotation of the gear 58 drives the two racks 59 to slide in opposite directions in the two first chutes 52. At this time, the two racks 59 will slide into the two chute 65 respectively. The two lifting seats 64 will move upward under the action of the extrusion force, so that the equipment can adjust the distance between the docking barrel and the discharge pipe 21 according to the demand. Through the adjustment, the methyltetrahydrophthalic anhydride material can fall into the receiving barrel smoothly, further reducing the occurrence of splashing, thereby reducing the waste of materials; The fifth step is to observe the methyltetrahydrophthalic anhydride liquid level through the scale bar 12 during use. When the methyltetrahydrophthalic anhydride material in the storage tank 11 is discharged and needs to be cleaned, clean water can be injected into the storage tank 11 through the feed window 13, and then the clean water in the storage tank 11 is stirred by the stirring blade 37 to clean the inner wall of the storage tank 11. At this time, the two threaded columns 73 can be installed back into the threaded hole 72, and the second drive motor 56 can be started. The gear 58 is controlled to rotate forward and reversely by the second drive motor 56. When the gear 58 rotates clockwise, the two racks 59 move in opposite directions. At this time, the two lifting seats 64 move upward inside the two rectangular grooves 62, and the two threaded columns 73 will also move upward accordingly. The two threaded columns 73 will extend into the first scraper 29 and connect with the second The scraper 31 contacts, and then drives the second scraper 31 and the first scraper 29 to slide in the outer wall of the drainage rod 27 and the inner wall of the discharge pipe 21 respectively, thereby cleaning the outer wall of the drainage rod 27 and the inner wall of the discharge pipe 21. At this time, the first spring 28 will be compressed accordingly. When the gear 58 rotates counterclockwise, the two racks 59 move relative to each other. At this time, the two threaded columns 73 will move downward, and the first spring 28 restores its deformation. The two second scrapers 31 and the first scraper 29 will also move downward. The second scraper 31 and the first scraper 29 can clean the inside of the discharge pipe 21 when moving up and down, and remove residual methyltetrahydrophthalic anhydride. This self-cleaning function can reduce the workload of manual cleaning, ensure the unobstructed discharge channel, reduce the risk of cross-contamination of materials, and improve the performance of the storage equipment.

[0030] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A large-capacity storage device for methyltetrahydrophthalic anhydride, comprising a storage tank (11), scale bars (12) being arranged on both sides of the storage tank (11), and a feed window (13) being symmetrically arranged at the upper end of the storage tank (11), characterized in that: An air injection pipe (14) is fixedly mounted on the side wall of the storage tank (11); a first liquid injection pipe (15) and a second liquid injection pipe (16) are symmetrically arranged at the upper and lower ends of the storage tank (11); an air cavity (17) is provided inside the storage tank (11); the air cavity (17) is in communication with the air injection pipe (14); A center disk (32) is fixedly installed at the center of the storage tank (11), and fluororubber sealing rings (75) are installed at both ends of the center disk (32). A first drive motor (33) is symmetrically arranged inside the center disk (32), and a first rotating shaft (35) is installed on the output end of the two first drive motors (33). The two first rotating shafts (35) are rotatably installed in the two fluororubber sealing rings (75), respectively. A first liquid injection port (36) is opened on the two first rotating shafts (35), and stirring blades (37) are symmetrically and equidistantly installed on the two first rotating shafts (35). An extension plate (38) is slidably installed inside each stirring blade (37), and a second spring (39) is symmetrically and fixedly installed on the side wall of each extension plate (38). , one end of each group of the second springs (39) away from each extension plate (38) is fixedly connected to each stirring blade (37), each extension plate (38) is fixedly mounted with a dispersion blade (41), stirring plates (42) are symmetrically fixedly mounted on the two first rotating shafts (35), and confluence grooves (43) are provided on the two groups of stirring plates (42). Second liquid injection ports connected to the first liquid injection ports (36) are provided inside the two groups of the center plates (32), the fluororubber sealing rings (75) and the stirring plates (42), and support bars (51) are symmetrically fixedly mounted on the lower end of the storage tank (11), and first slide grooves (52) are provided inside the two support bars (51), and a control panel (53) is fixedly mounted on the support bar (51) located on the left.

2. A large-capacity storage device for methyltetrahydrophthalic anhydride as claimed in claim 1, characterized in that: Both ends of the storage tank (11) are provided with a feed pipe (21), and both feed pipes (21) are equipped with an electric valve (22); Wherein, the two feeding tubes (21) are each provided with an inner groove (23), and the two inner grooves (23) are each provided with a thread groove (24).

3. A large-capacity storage device for methyltetrahydrophthalic anhydride as claimed in claim 2, characterized in that: The two inner grooves (23) are both threadedly mounted with a first threaded ring (25), and the two threaded grooves (24) are both threadedly mounted with an external threaded drainage disc (26); Wherein, drainage rods (27) are fixedly installed inside the two externally threaded drainage discs (26), and first springs (28) are fixedly installed at the lower ends of the externally threaded drainage discs (26) at even intervals.

4. A large-capacity storage device for methyltetrahydrophthalic anhydride as claimed in claim 3, characterized in that: A first scraper (29) is fixedly mounted on one end of the four first springs (28) away from the external thread drainage plate (26); a second scraper (31) is fixedly mounted on the inner wall of the first scraper (29); and the second scraper (31) is slidably sleeved on the drainage rod (27); Wherein, welding frames (34) are symmetrically fixedly mounted on the two first drive motors (33), and ends of the two sets of welding frames (34) away from the first drive motors (33) are welded to the inner wall of the central disk (32).

5. A large-capacity storage device for methyltetrahydrophthalic anhydride as claimed in claim 1, characterized in that: A connecting plate (54) is fixedly mounted between the two support bars (51), a U-shaped frame (55) is fixedly mounted on the upper end of the connecting plate (54), and a second driving motor (56) is fixedly mounted on the upper end of the U-shaped frame (55); Wherein, a second rotating shaft (57) is mounted on the output end of the second driving motor (56), and a gear (58) is fixedly mounted on the lower end of the second rotating shaft (57).

6. A large-capacity storage device for methyltetrahydrophthalic anhydride as claimed in claim 5, characterized in that: Racks (59) are slidably mounted inside the two first sliding grooves (52), and the two racks (59) are symmetrically distributed around the center point of the connecting plate (54); Wherein, a side plate (61) is fixedly mounted on the ends of the two support bars (51) that are away from each other, a rectangular groove (62) is provided on the two side bars (61), and a fixing bar (63) is symmetrically fixedly mounted on the two side bars (61).

7. A large-capacity storage device for methyltetrahydrophthalic anhydride as claimed in claim 6, characterized in that: A lifting seat (64) is slidably mounted inside the two rectangular grooves (62), and an inclined groove (65) is provided on the opposite ends of the two lifting seats (64); A baffle plate (66) is fixedly mounted on the upper end of the lifting seat (64), and second slide grooves (67) are evenly and equidistantly arranged inside the baffle plate (66).

8. A large-capacity storage device for methyltetrahydrophthalic anhydride as claimed in claim 7, characterized in that: A clamping block (68) is slidably mounted inside each of the second sliding grooves (67); Wherein, a third spring (69) is fixedly mounted on each clamping block (68), and one end of each third spring (69) away from the clamping block (68) is fixedly connected to the baffle plate (66).

9. A large-capacity storage device for methyltetrahydrophthalic anhydride as claimed in claim 8, characterized in that: A storage tray (71) is disposed inside the baffle plate (66), the storage tray (71) is fixedly connected to the lifting seat (64), and a threaded hole (72) is provided inside the storage tray (71); A threaded column (73) is threadedly installed inside the threaded hole (72), and a climbing frame (74) is fixedly installed on the storage tank (11) and the two side plates (61).

10. The method for using a large-capacity storage device for methyltetrahydrophthalic anhydride according to claim 1, characterized in that: The following steps are involved: S1: During use, the operator can climb the climbing frame (74) and feed different concentrations of methyltetrahydrophthalic anhydride into the storage tank (11) through the feed window (13), and then inject nitrogen into the air cavity (17) through the gas injection pipe (14). Then, the first drive motor (33) can be controlled to start through the control panel (53), and the two sets of stirring plates (42) can be rotated to a vertical state. At this time, the heated or cooled heat transfer oil can be selectively injected into the first liquid injection pipe (15). At this time, the heat transfer oil will be injected into the central disk (32), the fluororubber sealing ring (75), the first rotating shaft (35) and the stirring plate (42). Under the rotation of the stirring plate (42), the heat transfer oil will flow inside. At this time, the heat transfer oil is in full contact with the inner wall of the stirring plate (42), and the heat is transferred to the stirring plate (42). The heated stirring plate (42) is in direct contact with the methyltetrahydrophthalic anhydride. Due to the temperature difference, the methyltetrahydrophthalic anhydride is heated or cooled; S2: When the methyltetrahydrophthalic anhydride is left for a long time and precipitates, the two first drive motors (33) can be controlled to start through the control panel (53). When the amount of methyltetrahydrophthalic anhydride in the storage tank (11) is large, the two first drive motors (33) will drive the two first rotating shafts (35) to rotate. The rotation of the two first rotating shafts (35) will drive the two sets of stirring blades (37) and the stirring plate (42) to rotate accordingly, thereby stirring and mixing the methyltetrahydrophthalic anhydride in the storage tank (11). When the amount of methyltetrahydrophthalic anhydride in the storage tank (11) is small, the two stirring plates (42) can be driven to rotate slowly. Under the slow rotation of the two stirring plates (42), the methyltetrahydrophthalic anhydride in the storage tank (11) will flow to the middle through the two sets of confluence grooves (43) to mix. When the methyltetrahydrophthalic anhydride is precipitated in the storage tank (11) after long-term storage, the two first rotating shafts (35) will drive the two stirring blades (37) and the stirring plate (42) to rotate accordingly. When the sedimentation is serious, a solid catalyst can be added to the storage tank (11), and then the first drive motor (33) drives the first rotating shaft (35) and the stirring blade (37) to stir the solid catalyst. The control panel (53) controls the first rotating shaft (35) to increase its speed. The stirring blade (37) generates centrifugal force under the rapid rotation. Under the action of the centrifugal force, the extension plate (38) slides out of the stirring blade (37) until the extension plate (38) contacts the inner wall of the storage tank (11). At this time, the second spring (39) will be stretched. At this time, the dispersion blade (41) on the extension plate (38) can be used to finely disperse the solid catalyst. When dispersion is not required, the control panel (53) can be used to control the first rotating shaft (35) to resume its speed, and the second spring (39) will recover its deformation to drive the extension plate (38) to retract into the stirring blade (37). S3: When receiving the material, the two threaded columns (73) can be screwed out of the threaded holes (72), and then the receiving barrel can be pressed downward and placed inside the baffle (66). When the receiving barrel is pressed downward, it will squeeze the clamping block (68), and the clamping block (68) will drive the third spring (69) to stretch, thereby generating a reverse elastic force, and under the action of the elastic force, the clamping block (68) is driven to clamp and fix the receiving barrel; S4: Then, the control panel (53) is used to control the second drive motor (56) to start, and the second drive motor (56) will drive the second rotating shaft (57) and the gear (58) to rotate. The rotation of the gear (58) will drive the two racks (59) to slide in opposite directions in the two first slide grooves (52). At this time, the two racks (59) will slide into the two inclined grooves (65) respectively, and the two lifting seats (64) will move upward under the action of the extrusion force, thereby adjusting the distance between the docking barrel and the discharge pipe (21); S5: After the receiving barrel is placed, the control panel (53) controls the electric valve (22) to start, and the discharge pipe (21) is opened. The methyltetrahydrophthalic anhydride in the storage tank (11) flows out along the discharge pipe (21). At this time, the methyltetrahydrophthalic anhydride first flows along the external threaded drainage disk (26) to the middle part, and then flows through the drainage rod (27) to be drained and flows into the receiving barrel to complete the material collection; S6: The liquid level of methyltetrahydrophthalic anhydride can be observed through the scale bar (12). When the methyltetrahydrophthalic anhydride material in the storage tank (11) is exhausted and needs to be cleaned, clean water can be injected into the storage tank (11) through the feed window (13), and then the clean water in the storage tank (11) can be stirred by the stirring blade (37) to clean the inner wall of the storage tank (11). At this time, the two threaded columns (73) can be installed back into the threaded holes (72). At this time, the second drive motor (56) can be started, and the gear (58) can be controlled by the second drive motor (56) to rotate forward and reverse. When the gear (58) rotates clockwise, the two racks (59) move in opposite directions. At this time, the two lifting seats (64) move upward inside the two rectangular grooves (62), and the two threaded columns (73) will also move upward accordingly. The two threaded columns (73) will extend into the interior of the first scraper (29) and contact the second scraper (31), thereby driving the second scraper (31) and the first scraper (29) to slide on the outer wall of the drainage rod (27) and the inner wall of the discharge pipe (21) respectively, thereby cleaning the outer wall of the drainage rod (27) and the inner wall of the discharge pipe (21). At this time, the first spring (28) will be compressed. When the gear (58) rotates counterclockwise, the two racks (59) move relative to each other. At this time, the two threaded columns (73) will move downward. The first spring (28) will restore its deformation. The two second scrapers (31) and the first scraper (29) will also move downward. When the second scraper (31) and the first scraper (29) move up and down, they can clean the interior of the discharge pipe (21) and remove residual methyltetrahydrophthalic anhydride.

Images