Preparation device of methyl tetrahydrophthalic anhydride

Abstract

The utility model relates to the technical field of methyl tetrahydrophthalic anhydride, and discloses a methyl tetrahydrophthalic anhydride preparation device which comprises a supporting frame, a first motor is fixedly connected to the left side of the upper middle portion of the supporting frame, a rotating rod is fixedly connected to the output end of the first motor, and a connecting rod is fixedly connected to the bottom end of the rotating rod. Stirring blades are fixedly connected to the left end and the right end of the outer wall of the connecting rod, a fusion tank is rotatably connected to the outer wall of the rotating rod, the front end and the rear end of the fusion tank communicate with material conveying pipes, a sealing frame is fixedly connected to the front side of the fusion tank, and an observation window is fixedly connected to the inner side of the sealing frame; and a quantitative filtering mechanism is mounted on the right side of the fusion tank. According to the utility model, the motor I drives the stirring blade to rotate through the rotating rod and the connecting rod, and the stirring blade scrapes up precipitated solid raw materials when rotating, so that the effect of preventing the solid raw materials from sinking to the bottom is realized, the reaction time of the raw materials is shortened, and the production speed is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of methyltetrahydrophthalic anhydride, in particular to a preparation device of methyltetrahydrophthalic anhydride. Background Art

[0002] The preparation unit of methyltetrahydrophthalic anhydride is an indispensable and important unit in the production of methyltetrahydrophthalic anhydride. The preparation unit of methyltetrahydrophthalic anhydride plays the role of providing a reaction site, promoting the reaction, separating and purifying the product and maintaining production continuity in the process of producing methyltetrahydrophthalic anhydride.

[0003] After searching, the Chinese patent announcement number is: CN209287315U, which discloses a device for continuously producing methyltetrahydrophthalic anhydride, including a base, the outer walls of the four corners of the bottom of the base are fixed with support legs by bolts, and the outer walls of the bottoms of the four support legs are sleeved with anti-slip sleeves, the outer wall of the top of the base is fixed with an isomerization kettle by bolts, and the outer walls on both sides of the isomerization kettle are each provided with a first connecting hole, the inner walls of the two first connecting holes are respectively connected with a first conduit and a second conduit by threads, and the outer walls on both sides of the isomerization kettle are respectively fixed with a catalyst box and a vacuum pump by bolts, and the inner wall of one side of the catalyst box is fixed with a first liquid pump by bolts. , and the output end of the first liquid pump is connected to one end of the first conduit through a thread. The utility model can fully react C5 and maleic anhydride, promote the preparation effect, play a role in controlling the temperature, promote the sufficiency of the reaction, expand the coverage area of ​​the coolant, and improve the cooling quality of methyltetrahydrophthalic anhydride. The existing methyltetrahydrophthalic anhydride preparation device pours multiple raw materials into a reaction tank and relies on a single stirring rod for stirring to achieve the preparation of methyltetrahydrophthalic anhydride. However, in this process, some solid raw materials will precipitate at the bottom of the reaction tank, resulting in prolonged reaction time of the raw materials, thereby delaying production speed. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a preparation device for methyltetrahydrophthalic anhydride, aiming to improve the problem in the prior art that the precipitation of some solid raw materials leads to a long reaction time, thereby slowing down the production speed.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a preparation device of methyltetrahydrophthalic anhydride includes a support frame, a motor 1 is fixedly connected to the left side of the upper middle part of the support frame, the output end of the motor 1 is fixedly connected to a rotating rod, the bottom end of the rotating rod is fixedly connected to a connecting rod, the left and right ends of the outer wall of the connecting rod are fixedly connected to stirring blades, the outer wall of the rotating rod is rotatably connected to a fusion tank, the front and rear ends of the fusion tank are both connected to a feed pipe, and a quantitative filtering mechanism is installed on the right side of the fusion tank, and the quantitative filtering mechanism is used for quantitative filtration.

[0006] Through the above technical solution: Motor 1 drives the rotation of the connecting rod through the rotating rod. When the connecting rod rotates, the stirring blades fixed on both sides of it will also be driven. Since the stirring blades are obliquely welded on both sides of the connecting rod, the solid raw materials deposited at the bottom of the fusion tank will be scraped up when they are rotated.

[0007] As a further description of the above technical solution:

[0008] The quantitative filtering mechanism includes motor 2, which is fixedly connected to the right side of the upper middle part of the support frame, and the output end of motor 2 is fixedly connected to bevel gear 1. The right side of the fusion tank is connected to a delivery pipe, and a gate is installed in the middle of the delivery pipe. The middle part of the gate is threadedly connected to a threaded rod, and the top of the threaded rod is fixedly connected to bevel gear 2. Bevel gear 2 is meshed with bevel gear 1, the end of the delivery pipe is connected to a filter, and the front side of the filter is connected to a finished product pipe.

[0009] Through the above technical solution: Motor 2 drives the rotation of the threaded rod through bevel gear 1 and bevel gear 2, and then controls the opening and closing of the gate installed on the conveying pipe through the thread of the threaded rod. After the gate is opened, the fused methyltetrahydrophthalic anhydride flows from the conveying pipe into the filter for filtration, and then flows out from the finished product pipe.

[0010] As a further description of the above technical solution:

[0011] A sealing frame is fixedly connected to the front side of the fusion tank, and an observation window is fixedly connected to the inner side of the sealing frame.

[0012] Through the above technical solution: the observation window is fixed on the fusion tank through a sealing frame, so that the fusion progress can be checked at any time.

[0013] As a further description of the above technical solution:

[0014] The top ends of the two feeding pipes are both connected with a funnel, the outer sides of the two funnels are both threadedly connected with a hinge, and the middle and upper parts of the adjacent sides of the two hinges are both threadedly connected with a dust cover.

[0015] Through the above technical solution: the funnel is fixed on the feeding pipe to facilitate the pouring of raw materials, and the dust cover is connected to the funnel through a hinge to prevent foreign matter from entering the feeding pipe.

[0016] As a further description of the above technical solution:

[0017] A ball valve is installed in the middle of the finished pipe, and a turning handle is rotatably connected to the right side of the ball valve.

[0018] Through the above technical solution: the opening and closing of the ball valve is controlled by rotating the handle, and the ball valve is installed on the finished pipe.

[0019] As a further description of the above technical solution:

[0020] A plurality of anti-slip sleeves are equidistantly mounted on the outer wall of the turning handle, and the front and rear ends of the plurality of anti-slip sleeves are fixedly connected with fixing rings.

[0021] Through the above technical solution: the anti-slip sleeve is fixed on the handle through the fixing ring to prevent the staff's hands from slipping.

[0022] As a further description of the above technical solution:

[0023] An X-shaped frame is installed on the left and right sides of the support frame, and the four corners of the two X-shaped frames are threadedly connected with screws.

[0024] Through the above technical solution: screw one fixes the X-shaped frame to both sides of the support frame to provide support and stability.

[0025] As a further description of the above technical solution:

[0026] A top bar is installed on the top of the support frame, and screws 2 are threadedly connected at the four corners of the top bar.

[0027] Through the above technical solution: the top rail is fixed to the top of the equipment by screw two, providing protection for the methyltetrahydrophthalic anhydride preparation device.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the present invention, the motor drives the stirring blade to rotate through the rotating rod and the connecting rod. When the stirring blade rotates, the precipitated solid raw materials are scraped up, thereby preventing the solid raw materials from sinking to the bottom and speeding up the reaction time of the raw materials, thereby improving the production speed.

[0030] 2. In the present invention, motor 2 drives the threaded rod to rotate through bevel gears 1 and 2, thereby controlling the opening and closing of the gate. After the gate is opened, methyltetrahydrophthalic anhydride flows from the delivery pipe into the filter for filtration and then flows out from the finished product pipe, thereby achieving the effect of quantitative filtration, purification and output of methyltetrahydrophthalic anhydride. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A perspective view of the device for preparing methyltetrahydrophthalic anhydride proposed in the present invention;

[0032] Figure 2 The preparation device of methyltetrahydrophthalic anhydride proposed by the utility model Figure 1 Enlarged view of point A in the middle;

[0033] Figure 3 This is a front view of the device for preparing methyltetrahydrophthalic anhydride proposed by the present invention;

[0034] Figure 4 This is a partial structural cross-sectional view of the device for preparing methyltetrahydrophthalic anhydride proposed in the present invention;

[0035] Figure 5 This is an exploded view of the quantitative filtration mechanism of the methyltetrahydrophthalic anhydride preparation device proposed in the utility model.

[0036] Legend:

[0037] 1. Support frame; 2. Quantitative filtering mechanism; 201. Motor 2; 202. Bevel gear 1; 203. Bevel gear 2; 204. Threaded rod; 205. Gate; 206. Delivery pipe; 207. Filter; 208. Finished product pipe; 3. Motor 1; 4. Rotating rod; 5. Connecting rod; 6. Stirring blade; 7. Fusion tank; 8. Delivery pipe; 9. Sealing frame; 10. Observation window; 11. Funnel; 12. Hinge; 13. Dust cover; 14. Ball valve; 15. Turning handle; 16. Anti-slip sleeve; 17. Fixing ring; 18. X-shaped frame; 19. Screw 1; 20. Top bar; 21. Screw 2. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Reference Figure 2 and Figure 4 The utility model provides an embodiment of a methyltetrahydrophthalic anhydride preparation device, comprising a support frame 1, a motor 3 is fixedly connected to the left side of the upper middle portion of the support frame 1, an output end of the motor 3 is fixedly connected to a rotating rod 4, a bottom end of the rotating rod 4 is fixedly connected to a connecting rod 5, the motor 3 drives the connecting rod 5 through the rotating rod 4, the left and right ends of the outer wall of the connecting rod 5 are fixedly connected to stirring blades 6, the outer wall of the rotating rod 4 is rotatably connected to a fusion tank 7, the connecting rod 5 drives the stirring blades 6 to stir in the fusion tank 7, and the front and rear ends of the fusion tank 7 are both connected to the output The material pipe 8 and the right side of the fusion tank 7 are equipped with a quantitative filtering mechanism 2, which is used for quantitative filtering. The front side of the fusion tank 7 is fixedly connected to a sealing frame 9, and the inner side of the sealing frame 9 is fixedly connected to an observation window 10. The observation window 10 is convenient for observing the situation inside the fusion tank 7. The tops of the two material delivery pipes 8 are connected to funnels 11. The outer sides of the two funnels 11 are threadedly connected to hinges 12. The middle and upper parts of the adjacent sides of the two hinges 12 are threadedly connected to dust covers 13, and the opening and closing of the dust covers 13 are achieved by the hinges 12.

[0040] Specifically, when producing methyltetrahydrophthalic anhydride, the motor 3 drives the rotating rod 4 to rotate, and then the rotating rod 4 drives the connecting rod 5 to rotate. When the connecting rod 5 rotates, the stirring blades 6 fixed on both sides thereof are also driven; because the stirring blades 6 are obliquely welded on both sides of the connecting rod 5, the solid raw materials deposited at the bottom of the fusion tank 7 will be scraped up when being rotated, and an oblique upward water flow will be formed in the liquid raw material, thereby uniformly dispersing the solid raw materials to every part of the fusion tank 7 to accelerate the reaction time of the raw materials; thereby avoiding the effect of the solid raw materials sinking to the bottom while accelerating the reaction time of the raw materials and improving the production speed. The observation window 10 fixed to the fusion tank 7 by the sealing frame 9 can observe the fusion progress in the fusion tank 7 at any time, the funnel 11 fixed to the feed pipe 8 is convenient for pouring raw materials, and the dust cover 13 fixed to the funnel 11 by the hinge 12 can prevent foreign matter from falling into the feed pipe 8.

[0041] Reference Figure 5 , the quantitative filtering mechanism 2 includes a motor 201, the motor 201 is fixedly connected to the right side of the upper middle part of the support frame 1, the output end of the motor 201 is fixedly connected to the bevel gear 1 202, the right side of the fusion tank 7 is connected to the delivery pipe 206, the middle part of the delivery pipe 206 is installed with a gate 205, the gate 205 controls the timing of the methyltetrahydrophthalic anhydride in the fusion tank 7 flowing out of the delivery pipe 206, the middle part of the gate 205 is threadedly connected to the threaded rod 204, the top of the threaded rod 204 is fixedly connected to the bevel gear 203, the bevel gear 203 is meshed with the bevel gear 1 202, the motor 201 is connected through the bevel gear 1 202, Bevel gear 203 and threaded rod 204 control the opening and closing of gate 205. The end of delivery pipe 206 is connected to filter 207. The front side of filter 207 is connected to finished product pipe 208. Methyltetrahydrophthalic anhydride is filtered by filter 207 and flows out of finished product pipe 208. A ball valve 14 is installed in the middle of finished product pipe 208. The right side of ball valve 14 is rotatably connected to handle 15. The flow rate and opening and closing of finished product pipe 208 are controlled by switching ball valve 14. Multiple anti-slip sleeves 16 are equidistantly installed on the outer wall of handle 15. The front and rear ends of multiple anti-slip sleeves 16 are fixedly connected to fixing rings 17. The anti-slip sleeves 16 provide anti-slip effect for handle 15.

[0042] Specifically, after the multiple raw materials have produced sufficient fusion reaction to form methyltetrahydrophthalic anhydride, motor 201 is started, and motor 201 drives bevel gear 1 202 to rotate, and bevel gear 1 202 then drives bevel gear 2 203 to rotate. At this time, threaded rod 204 fixed under bevel gear 203 is also driven to rotate together, and the thread of threaded rod 204 is then used to control the opening and closing of gate 205 installed on delivery pipe 206. After gate 205 is opened, the fused methyltetrahydrophthalic anhydride flows from delivery pipe 206 into filter 207 for filtration, and then flows out from finished product pipe 208. In this way, the quantitative filtration, purification and output of methyltetrahydrophthalic anhydride are achieved. The opening and closing of ball valve 14 installed on finished product pipe 208 is controlled by rotating handle 15. Anti-slip sleeve 16 fixed to handle 15 by fixing ring 17 can prevent the staff's hands from slipping. The model of motor 13 is GK187-YVP37, and the model of motor 201 is YDF-WF-321.

[0043] Reference Figure 1 and Figure 3 , X-shaped frames 18 are installed on the left and right sides of the support frame 1, and the four corners of the two X-shaped frames 18 are threadedly connected with screws 19. The X-shaped frames 18 provide support for the support frame 1. A top rail 20 is installed on the top of the support frame 1. The four corners of the top rail 20 are threadedly connected with screws 21. The top rail 20 provides protection for the equipment;

[0044] Specifically, the X-shaped frames 18 fixed to both sides of the support frame 1 by screws 19 provide support and stability for it, and the top rail 20 fixed to the top of the equipment by screws 21 provides protection for the preparation device of methyltetrahydrophthalic anhydride.

[0045] Working principle: When producing methyltetrahydrophthalic anhydride, the motor 3 drives the rotating rod 4 to rotate, and the rotating rod 4 then drives the connecting rod 5 to rotate. When the connecting rod 5 rotates, the stirring blades 6 fixed on both sides of the connecting rod 5 are also driven. Since the stirring blades 6 are welded obliquely on both sides of the connecting rod 5, they will scrape up the solid raw materials settled at the bottom of the fusion tank 7 when they are driven to rotate, and form an oblique upward water flow in the liquid raw materials, thereby evenly dispersing the solid raw materials to every part of the fusion tank 7, thereby accelerating the reaction time of the raw materials. In this way, the effect of the solid raw materials settling to the bottom is avoided, and the reaction time of the raw materials is accelerated, thereby increasing the production speed.

[0046] After the various raw materials have undergone sufficient fusion reaction to form methyltetrahydrophthalic anhydride, motor 201 is started, and motor 201 drives bevel gear 1 202 to rotate, which in turn drives bevel gear 2 203 to rotate. At this time, threaded rod 204 fixed under bevel gear 203 is also driven to rotate together, and the threads of threaded rod 204 are then used to control the opening and closing of gate 205 installed on delivery pipe 206. After gate 205 is opened, the fused methyltetrahydrophthalic anhydride flows from delivery pipe 206 into filter 207 for filtration, and then flows out of finished product pipe 208. In this way, the quantitative filtration, purification and output of methyltetrahydrophthalic anhydride are achieved.

[0047] 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 make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for preparing methyltetrahydrophthalic anhydride, comprising a support frame (1), characterized in that: A motor 1 (3) is fixedly connected to the left side of the upper middle portion of the support frame (1), the output end of the motor 1 (3) is fixedly connected to a rotating rod (4), the bottom end of the rotating rod (4) is fixedly connected to a connecting rod (5), the left and right ends of the outer wall of the connecting rod (5) are fixedly connected to stirring blades (6), the outer wall of the rotating rod (4) is rotatably connected to a fusion tank (7), the front and rear ends of the fusion tank (7) are both connected to a feed pipe (8), and a quantitative filtering mechanism (2) is installed on the right side of the fusion tank (7), and the quantitative filtering mechanism (2) is used for quantitative filtering.

2. The preparation device of methyltetrahydrophthalic anhydride according to claim 1, wherein: The quantitative filtering mechanism (2) comprises a second motor (201), the second motor (201) being fixedly connected to the right side of the upper middle portion of the support frame (1), the output end of the second motor (201) being fixedly connected to a first bevel gear (202), the right side of the fusion tank (7) being connected to a delivery pipe (206), a gate (205) being installed in the middle of the delivery pipe (206), a threaded rod (204) being threadedly connected to the middle of the gate (205), a top end of the threaded rod (204) being fixedly connected to a second bevel gear (203), the second bevel gear (203) being meshedly connected to the first bevel gear (202), the end of the delivery pipe (206) being connected to a filter (207), and the front side of the filter (207) being connected to a finished product pipe (208).

3. The preparation device of methyltetrahydrophthalic anhydride according to claim 1, wherein: A sealing frame (9) is fixedly connected to the front side of the fusion tank (7), and an observation window (10) is fixedly connected to the inner side of the sealing frame (9).

4. The preparation device of methyltetrahydrophthalic anhydride according to claim 1, wherein: The top ends of the two feeding pipes (8) are connected to a funnel (11), the outer sides of the two funnels (11) are threadedly connected to a hinge (12), and the middle and upper parts of the adjacent sides of the two hinges (12) are threadedly connected to a dust cover (13).

5. The preparation device of methyltetrahydrophthalic anhydride according to claim 2, wherein: A ball valve (14) is installed in the middle of the finished pipe (208), and a handle (15) is rotatably connected to the right side of the ball valve (14).

6. The preparation device of methyltetrahydrophthalic anhydride according to claim 5, wherein: A plurality of anti-slip sleeves (16) are equidistantly mounted on the outer wall of the turning handle (15), and the front and rear ends of the plurality of anti-slip sleeves (16) are fixedly connected to a fixing ring (17).

7. The preparation device of methyltetrahydrophthalic anhydride according to claim 1, wherein: X-shaped frames (18) are installed on the left and right sides of the support frame (1), and screws (19) are threadedly connected at the four corners of the two X-shaped frames (18).

8. The preparation device of methyltetrahydrophthalic anhydride according to claim 1, wherein: A top rail (20) is installed on the top of the support frame (1), and screws (21) are threadedly connected at the four corners of the top rail (20).

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