Tetrahydrofuran and 1, 4-butanediol polymer synthesis system and purification detection method

Abstract

The invention belongs to the field of polymer synthesis systems and purification detection, and particularly relates to a tetrahydrofuran and 1, 4-butanediol polymer synthesis system and a purification detection method. The left side end of the conveying device base is fixedly connected with the synthesis and purification device body, the right side end of the conveying device base is fixedly connected with the detection device body, and the efficient detection mechanism is arranged on the outer side of the conveying device base. The efficient detection mechanism comprises a motor; through the design of the efficient detection mechanism, the function of screening polymers and uniformly dispersing the polymers on the conveying belt is realized, and the problems that an existing device is not provided with an assembly capable of performing efficient detection, and when the polymers are detected and are directly stacked on a detection table for detection, the detection efficiency is low are solved. The problem that the detection result cannot be accurately given due to the fact that the detection camera cannot capture the polymer accumulated in the detection camera is solved, and the maintenance effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of polymer synthesis systems and purification detection, in particular to a tetrahydrofuran and 1,4-butanediol polymer synthesis system and purification detection method. BACKGROUND

[0002] The polymer synthesis system and purification detection is an intelligent polymer production system integrating synthesis, purification and online detection functions. It realizes the continuous polymerization of tetrahydrofuran and 1,4-butanediol through a precisely controlled reactor, then efficiently removes unreacted monomers and impurities through a multi-stage purification device and performs detection to ensure stable and controllable product quality, and finally outputs high molecular polymer products meeting the standards.

[0003] The existing tetrahydrofuran and 1,4-butanediol polymer synthesis system and purification detection method can refer to the polymer synthesis device with application number CN202222674803.8, which includes a base plate, support rods installed at both ends of the top of the base plate, a synthesis tank installed between the two groups of support rods, feed pipes connected to the top of both sides of the synthesis tank, a discharge pipe connected to the bottom of the synthesis tank, a control valve provided on the outer wall of the discharge pipe, a drive assembly provided on the top of the synthesis tank, first stirring shafts connected to both ends of the top of the inner cavity of the synthesis tank through bearings, and stirring rods connected to both ends of the two groups of first stirring shafts at equal intervals. The cooperation of the spiral blades, the second stirring shaft and the drive assembly enables the polymer inside the synthesis tank to be flipped from bottom to top, improving the stirring efficiency of the polymer. Meanwhile, the first stirring shaft and the stirring rod work together to fully stir the polymer, further improving the synthesis effect of the polymer and the stirring efficiency of the device.

[0004] The above device does not have a component for efficient detection. When detecting the polymer, if it is directly accumulated on the detection table for detection, the detection camera will not be able to capture the polymer accumulated inside, thus unable to accurately give the detection result. Therefore, the tetrahydrofuran and 1,4-butanediol polymer synthesis system and purification detection method is proposed to solve the above problem. SUMMARY

[0005] In order to solve the problem that the existing device does not have a component for efficient detection, when detecting the polymer, if it is directly accumulated on the detection table for detection, the detection camera will not be able to capture the polymer accumulated inside, thus unable to accurately give the detection result, the present application proposes a tetrahydrofuran and 1,4-butanediol polymer synthesis system and purification detection method.

[0006] The technical scheme adopted by the present application to solve its technical problems is: the tetrahydrofuran and 1,4-butanediol polymer synthesis system comprises a conveying device base; the left side end of the conveying device base is fixedly connected with a synthesis and purification device main body, and the right side end of the conveying device base is fixedly connected with a detection device main body; and an efficient detection mechanism is arranged outside the conveying device base;

[0007] The efficient detection mechanism comprises a motor, which is arranged at the left side end of the rear end position of the conveying device base and is fixedly connected with the conveying device base; first transmission rollers are also arranged at the left and right sides in the conveying device base and are rotationally connected with the conveying device base; the front end of the first transmission roller at the left side in the conveying device base is fixedly connected with the rear end of a first transmission rod; the front end of the first transmission rod is fixedly connected with the rear end of a first gear; the first gear is in meshing connection with a second gear; the rear end of the second gear is fixedly connected with the front end of a rotating block; a first fixed sleeve block is arranged outside the rear end of the rotating block and is rotationally connected with the rotating block; the rear end of the first fixed sleeve block is fixedly connected with the front end of the conveying device base; and a conveying belt is arranged outside the first transmission roller and is transmissionally connected with the first transmission roller.

[0008] Preferably, the front end of the second gear is fixedly connected with the rear end of a first synchronous wheel; one end of a synchronous belt is arranged outside the first synchronous wheel and is transmissionally connected with the first synchronous wheel; and the other end of the synchronous belt is arranged outside a second synchronous wheel and is transmissionally connected with the second synchronous wheel.

[0009] Preferably, a second transmission rod is arranged at a position close to the left side in the conveying device base; first fixed discs are fixedly connected with the front and rear ends of the second transmission rod; a transmission block is fixedly connected with one end of the first fixed disc; a second fixed disc is fixedly connected with the other end of the transmission block; and the rear end of the second fixed disc at a position close to the rear side in the conveying device base is fixedly connected with the front end of the second synchronous wheel.

[0010] Preferably, a second fixed sleeve block is arranged outside the second transmission rod at a position close to the middle; the second fixed sleeve block is rotationally connected with the second transmission rod; the bottom end of the second fixed sleeve block is fixedly connected with the conveying device base; and limiting blocks are fixedly connected with the front and rear ends of the second fixed sleeve block outside the second transmission rod.

[0011] Preferably, the top end of the transmission block is sleeved outside the bottom end of the fixed seat, and the fixed seat is rotationally connected with the transmission block, the top end of the fixed seat is fixedly connected with the bottom end of the push rod, the push rod is sleeved with the third fixed sleeve block outside, and the push rod is slidingly connected with the third fixed sleeve block, the third fixed sleeve block is fixedly connected with the outside of the base of the conveying device.

[0012] Preferably, the top end of the conveying device base is provided with a screening box near the position below the main body of the synthetic purification device, the bottom end of the screening box is also provided with a moving rod near the corner position, and the bottom end of the screening box is fixedly connected with the top end of the moving rod, the bottom end of the moving rod is inserted into the sleeve rod, and the moving rod is slidingly connected with the sleeve rod, the bottom end of the sleeve rod is fixedly connected with the bottom end of the first reset spring, and the top end of the first reset spring is fixedly connected with the bottom end of the moving rod.

[0013] Preferably, the left and right ends of the moving rod outside the bottom end are also fixedly connected with the one end of the moving block, and the left and right sides of the sleeve rod are also provided with limiting grooves, the other end of the moving block is inserted into the limiting groove, and the moving block is slidingly connected with the limiting groove.

[0014] Preferably, the second transmission roller is arranged inside the conveying belt at the lower position, and the conveying belt is drivingly connected with the second transmission roller, the second transmission roller is sleeved with the moving sleeve block outside the front and rear ends, and the second transmission roller is drivingly connected with the moving sleeve block, the moving sleeve block is sleeved outside the guide rod, and the moving sleeve block is slidingly connected with the guide rod, the guide rod is fixedly connected with the inner wall of the fixed frame at the upper and lower ends, and the fixed frame is fixedly connected with the base of the conveying device.

[0015] Preferably, the second reset spring is sleeved outside the guide rod, the top end of the second reset spring is fixedly connected with the top end inside the fixed frame, and the bottom end of the second reset spring is fixedly connected with the top end of the moving sleeve block.

[0016] Preferably, the method for purifying and detecting tetrahydrofuran and 1,4-butanediol polymer comprises the following steps:

[0017] S1: tetrahydrofuran and 1,4-butanediol are subjected to polymerization reaction in the main body of the synthetic purification device, and the purified polymer falls into the screening box;

[0018] S2: through the cooperation of the push rod and the first reset spring, the screening box reciprocates up and down to realize the vibration screening of the polymer, and the screened polymer is uniformly dispersed on the conveying belt to avoid accumulation;

[0019] S3: the motor drives the first transmission roller to drive the conveying belt to run, and the dispersed polymer is conveyed to the position below the detection device main body;

[0020] S4: The second transmission roller cooperates with the second reset spring to automatically adjust the tension of the conveying belt to prevent loosening.

[0021] S5: The detection device body is provided with a detection camera and a sensor to image collect and physically detect the uniformly distributed polymers.

[0022] The present application has the advantages of:

[0023] 1. The present application realizes the function of screening and uniformly dispersing polymers on the conveying belt through the structural design of the high-efficiency detection mechanism, solves the problem that the existing device does not have a high-efficiency detection component, and improves the maintenance effect.

[0024] 2. The present application realizes the function of deceleration through the structural design of the high-efficiency detection mechanism, solves the problem that if a deceleration component is not provided, the up-down movement frequency of the push rod will be too fast when the push rod is driven to move up and down, which will not give enough time for the first reset spring to rebound, thereby reducing the vibration screening effect, and improves the vibration effect.

[0025] 3. The present application realizes the function of automatically tightening the conveying belt through the structural design of the high-efficiency detection mechanism, solves the problem that if a component for automatically tightening the conveying belt is not provided, the conveying belt is prone to looseness after long-term use, and if not treated in time, the conveying work will be affected, thereby reducing the occurrence of conveying faults. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0027] Figure 1 It is a first three-dimensional structure schematic diagram of the present application;

[0028] Figure 2 It is a second three-dimensional structure schematic diagram of the present application;

[0029] Figure 3 It is a first high-efficiency detection component structure schematic diagram of the present application;

[0030] Figure 4The second efficient detection assembly structure schematic view of the present application;

[0031] Figure 5 The third efficient detection assembly structure schematic view of the present application;

[0032] Figure 6 The fourth efficient detection assembly structure schematic view of the present application;

[0033] Figure 7 The fifth efficient detection assembly structure schematic view of the present application;

[0034] Figure 8 The sixth efficient detection assembly structure schematic view of the present application; Figure 2 The enlarged structure schematic view of A in the sixth efficient detection assembly structure;

[0035] Figure 9 The seventh efficient detection assembly structure schematic view of the present application; Figure 2 The enlarged structure schematic view of B in the seventh efficient detection assembly structure;

[0036] Figure 10 The eighth efficient detection assembly structure schematic view of the present application; Figure 3 The enlarged structure schematic view of C in the eighth efficient detection assembly structure.

[0037] In the figure: 1, conveying device base; 2, synthetic purification device main body; 3, detection device main body; 10, motor; 11, first transmission roller; 12, conveying belt; 13, first transmission rod; 14, first gear; 15, second gear; 16, rotating block; 17, first fixed sleeve block; 18, first synchronous wheel; 19, synchronous belt; 20, second synchronous wheel; 21, second transmission rod; 22, first fixed disc; 23, transmission block; 24, second fixed disc; 25, second fixed sleeve block; 26, limiting block; 27, fixed seat; 28, push rod; 29, third fixed sleeve block; 30, screening box; 31, sleeve rod; 32, moving rod; 33, first return spring; 34, moving block; 35, limiting groove; 36, second transmission roller; 37, moving sleeve block; 38, guide rod; 39, fixed frame; 40, second return spring. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0039] Embodiment one

[0040] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 ,Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 As shown in the synthesis system and purification detection method of tetrahydrofuran and 1,4-butanediol polymer, the left end of the conveying device base 1 is fixedly connected with the synthesis and purification device body 2, and the right end of the conveying device base 1 is fixedly connected with the detection device body 3, and the outer side of the conveying device base 1 is provided with an efficient detection mechanism.

[0041] The high-efficiency detection mechanism comprises a motor 10, the motor 10 is arranged at the left end of the rear end position of the conveying device base 1, and the motor 10 is fixedly connected with the conveying device base 1, the left and right sides in the conveying device base 1 are also sleeved with the first transmission roller 11, and the conveying device base 1 is rotationally connected with the first transmission roller 11, the front end of the motor 10 is fixedly connected with the rear end of the first transmission roller 11 at the left end in the conveying device base 1, the front end of the first transmission roller 11 at the left end in the conveying device base 1 is fixedly connected with the rear end of the first transmission rod 13, the front end of the first transmission rod 13 is fixedly connected with the rear end of the first gear 14, the first gear 14 is meshingly connected with the second gear 15, the rear end of the second gear 15 is fixedly connected with the front end of the rotating block 16, the rear end of the rotating block 16 is sleeved with the first fixed sleeve block 17 outside, and the rotating block 16 is rotationally connected with the first fixed sleeve block 17, the inside of the first fixed sleeve block 17 is circularly designed, the rear end of the first fixed sleeve block 17 is fixedly connected with the front end of the conveying device base 1, the outside of the first transmission roller 11 is sleeved with the conveying belt 12, and the first transmission roller 11 is transmissionally connected with the conveying belt 12; the front end of the second gear 15 is fixedly connected with the rear end of the first synchronous wheel 18, the outside of the first synchronous wheel 18 is sleeved with one end of the synchronous belt 19, and the first synchronous wheel 18 is transmissionally connected with the synchronous belt 19, the other end of the synchronous belt 19 is sleeved outside the second synchronous wheel 20, and the synchronous belt 19 is transmissionally connected with the second synchronous wheel 20; the second transmission rod 21 is arranged at the position close to the left side in the conveying device base 1, the second transmission rod 21 is circularly designed, and the first fixed disc 22 is fixedly connected with one end of the second transmission rod 21, one end of the transmission block 23 is fixedly connected with the other end of the first fixed disc 22, the other end of the transmission block 23 is fixedly connected with one end of the second fixed disc 24, the rear end of the second fixed disc 24 close to the rear position in the conveying device base 1 is fixedly connected with the front end of the second synchronous wheel 20; the second fixed sleeve block 25 is sleeved outside the second transmission rod 21 close to the middle position, and the second transmission rod 21 is rotationally connected with the second fixed sleeve block 25, the inner wall of the second fixed sleeve block 25 is circularly designed, the bottom end of the second fixed sleeve block 25 is fixedly connected with the conveying device base 1, and the limit block 26 is fixedly connected with the outside of the second transmission rod 21 close to the front and rear ends of the second fixed sleeve block 25; the transmission block 23 is sleeved outside the bottom end of the fixed seat 27, and the transmission block 23 is rotationally connected with the fixed seat 27, the top end of the fixed seat 27 is fixedly connected with the bottom end of the pushing rod 28, the outside of the pushing rod 28 is sleeved with the third fixed sleeve block 29, and the pushing rod 28 is slidingly connected with the third fixed sleeve block 29, the pushing rod 28 is circularly designed, and the third fixed sleeve block 29 is fixedly connected with the outside of the conveying device base 1.The top end of the conveying device base 1 is provided with a screening box 30 near the lower position of the synthetic purification device main body 2. The bottom end of the screening box 30 is also provided with a moving rod 32 near the corner position. The bottom end of the screening box 30 is fixedly connected with the top end of the moving rod 32. The bottom end of the moving rod 32 is inserted into the inside of the sleeve rod 31. The moving rod 32 is slidingly connected with the sleeve rod 31. The moving rod 32 is designed as a circular rod. The inside bottom end of the sleeve rod 31 is fixedly connected with the bottom end of the first return spring 33. The top end of the first return spring 33 is fixedly connected with the bottom end of the moving rod 32. The left and right ends of the moving rod 32 near the bottom end are also fixedly connected with one end of the moving block 34. The left and right sides of the sleeve rod 31 are also provided with limiting grooves 35. The other end of the moving block 34 is inserted into the inside of the limiting groove 35. The moving block 34 is slidingly connected with the limiting groove 35. The limiting groove 35 is designed as a square slot.

[0042] When working, the motor 10 at the rear end of the conveying device base 1 is started to drive the first transmission roller 11 at the left end inside the conveying device base 1 to rotate, when the first transmission roller 11 rotates, the conveying belt 12 will be driven to rotate, and in the process of rotating, the first transmission roller 11 at the right end inside the conveying device base 1 will be driven to rotate, when the first transmission roller 11 at the left end inside the conveying device base 1 rotates, the first transmission rod 13 and the first gear 14 will be synchronously driven to rotate, and when the first gear 14 rotates, the second gear 15 will be driven to rotate, when the second gear 15 rotates, the rotating block 16 will be driven to rotate along the inside of the first fixed sleeve block 17, at the same time, the second gear 15 rotating will drive the first synchronous wheel 18 to rotate, when the first synchronous wheel 18 rotates, the synchronous belt 19 will be driven to rotate, and when the synchronous belt 19 rotates, the second synchronous wheel 20 and the second fixed disc 24 will be synchronously driven to rotate, when the second fixed disc 24 rotates, the transmission block 23 and the first fixed disc 22 will be synchronously driven to rotate, and when the first fixed disc 22 rotates, the second transmission rod 21 will be driven to rotate, and when the second transmission rod 21 rotates, the second transmission rod 21 will synchronously drive the first fixed disc 22 at the rear end position of the second transmission rod 21 to rotate synchronously, and in the process of rotating, the second transmission rod 21 will rotate along the inside of the second fixed sleeve block 25, and the limiting block 26 can limit the second transmission rod 21 to prevent the position of the second transmission rod 21 from moving forward and backward, when the transmission blocks 23 at the front and back ends of the second transmission rod 21 rotate synchronously, the top end of the transmission block 23 will slightly rotate along the outside of the bottom end of the fixed seat 27, and when the bottom end of the transmission block 23 rotates to the upper position, it will push the push rod 28 at the top end of the fixed seat 27 to move upward, at the same time, when the bottom end of the transmission block 23 rotates to the lower position, it will drive the push rod 28 to move downward, and in the process of moving, the push rod 28 will move along the inside of the third fixed sleeve block 29, at the same time, when the push rod 28 moves upward, it will push the screening box 30 to move upward, when the screening box 30 moves upward, it will drive the moving rod 32 at the bottom end of the screening box 30 to move upward synchronously, and when the moving rod 32 moves, it will move along the inside of the sleeve rod 31, at the same time, when the moving rod 32 moves, it will drive the first return spring 33 to be stretched and lengthened, and at the same time, when the moving rod 32 moves, it will synchronously drive the moving block 34 to move along the inside of the limiting groove 35, and the limiting groove 35 can effectively prevent the moving block 34 from separating from the inside of the sleeve rod 31, when the screening box 30 moves to the upper position, and after the push rod 28 moves downward, the screening box 30 will automatically rebound to the original position under the rebound of the first return spring 33, and in the process of rebounding to the original position, vibration will be generated, so that the synthesized purification device main body 2 will put the synthesized and purified polymer into the inside of the screening box 30,The polymer is evenly distributed on the top end of the conveying belt 12 through the vibration screening of the screening box 30, and then conveyed to the detection device main body 3 below for detection.

[0043] Example two

[0044] Please refer to Figure 1 、 Figure 2 and Figure 5 , as another embodiment of the present application, the second drive roller 36 is arranged at the lower position inside the conveying belt 12, and the conveying belt 12 is drivingly connected with the second drive roller 36. The second drive roller 36 is also sleeved with the moving sleeve block 37 at the outer side of the front and rear ends, and the second drive roller 36 is drivingly connected with the moving sleeve block 37. The moving sleeve block 37 is sleeved on the outer side of the guide rod 38, and the inner wall of the moving sleeve block 37 is circularly designed. The guide rod 38 is circularly designed, and the upper and lower ends of the guide rod 38 are fixedly connected with the inner wall of the fixed frame 39. The bottom end of the fixed frame 39 is fixedly connected with the conveying device base 1. The outer side of the guide rod 38 is sleeved with the second reset spring 40, the top end of the second reset spring 40 is fixedly connected with the inner top end of the fixed frame 39, and the bottom end of the second reset spring 40 is fixedly connected with the top end of the moving sleeve block 37. The purification detection method of tetrahydrofuran and 1,4-butanediol polymer is characterized in that the method comprises the following steps:

[0045] S1: tetrahydrofuran and 1,4-butanediol are subjected to polymerization reaction in the synthesis and purification device main body 2, and the purified polymer falls into the screening box 30;

[0046] S2: through the cooperation of the push rod 28 and the first reset spring 33, the screening box 30 reciprocates up and down to realize the vibration screening of the polymer, and the screened polymer is evenly distributed on the conveying belt 12 to avoid accumulation;

[0047] S3: the motor 10 drives the first drive roller 11 to drive the conveying belt 12 to run, and the dispersed polymer is conveyed to the detection device main body 3 below;

[0048] S4: the second drive roller 36 cooperates with the second reset spring 40 to automatically adjust the conveying belt tension to prevent loosening;

[0049] S5: the detection device main body 3 is provided with a detection camera and a sensor to collect images and detect physical properties of the evenly distributed polymer;

[0050] When the conveying belt 12 is loosened, the second reset spring 40 will push the moving sleeve block 37 to move downwards along the outer side of the guide rod 38 under the elastic force of the second reset spring 40, the fixed frame 39 is used for fixing the position of the guide rod 38 and limiting the moving sleeve block 37, and when the moving sleeve block 37 moves downwards, the second transmission roller 36 will be synchronously driven to move downwards, when the second transmission roller 36 moves downwards, the conveying belt 12 will be pushed to move downwards and be tightened again, and when the conveying belt 12 rotates, the second transmission roller 36 will be synchronously driven to rotate, and the front and rear ends of the second transmission roller 36 will rotate along the inside of the moving sleeve block 37.

[0051] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A system for the synthesis of tetrahydrofuran and 1,4-butanediol polymers comprising a conveyor base (1); characterized by the fact that: The left end of the conveying device base (1) is fixedly connected with the synthetic purification device main body (2), and the right end of the conveying device base (1) is fixedly connected with the detection device main body (3), and the outer side of the conveying device base (1) is provided with a high-efficiency detection mechanism. The high-efficiency detection mechanism comprises a motor (10), which is arranged at the left end of the rear end position of the conveying device base (1) and is fixedly connected with the conveying device base (1), the left and right sides inside the conveying device base (1) are also sleeved with first transmission rollers (11), and the conveying device base (1) is rotatably connected with the first transmission rollers (11), the front end of the motor (10) penetrates through the conveying device base (1) and is fixedly connected with the rear end of the first transmission roller (11) at the left end inside the conveying device base (1), the front end of the first transmission roller (11) at the left end inside the conveying device base (1) is fixedly connected with the rear end of a first transmission rod (13), the front end of the first transmission rod (13) is fixedly connected with the rear end of a first gear (14), the first gear (14) is meshingly connected with a second gear (15), the rear end of the second gear (15) is fixedly connected with the front end of a rotating block (16), the rear end outside of the rotating block (16) is sleeved with a first fixed sleeve block (17), and the rotating block (16) is rotatably connected with the first fixed sleeve block (17), the rear end of the first fixed sleeve block (17) is fixedly connected with the front end of the conveying device base (1), and the outer side of the first transmission roller (11) is sleeved with a conveying belt (12), and the first transmission roller (11) is drivingly connected with the conveying belt (12).

2. The tetrahydrofuran and 1,4-butanediol polymer synthesis system of claim 1, wherein: The front end of the second gear (15) is fixedly connected with the rear end of a first synchronous wheel (18), the outer side of the first synchronous wheel (18) is sleeved with one end of a synchronous belt (19), and the first synchronous wheel (18) is drivingly connected with the synchronous belt (19), the other end of the synchronous belt (19) is sleeved on the outer side of a second synchronous wheel (20), and the synchronous belt (19) is drivingly connected with the second synchronous wheel (20).

3. The THF and 1,4-butanediol polymer synthesis system and purification detection method of claim 2, wherein: The inner side of the conveying device base (1) is provided with a second transmission rod (21) near the left side position, the front and rear ends of the second transmission rod (21) are also fixedly connected with one end of a first fixed disc (22), the other end of the first fixed disc (22) is fixedly connected with one end of a transmission block (23), the other end of the transmission block (23) is fixedly connected with one end of a second fixed disc (24), and the rear end of the second fixed disc (24) near the rear position inside the conveying device base (1) is fixedly connected with the front end of the second synchronous wheel (20).

4. The tetrahydrofuran and 1,4-butanediol polymer synthesis system of claim 3, wherein: The outer side of the second transmission rod (21) is sleeved with a second fixed sleeve block (25) near the middle position, and the second transmission rod (21) is rotatably connected with the second fixed sleeve block (25), the bottom end of the second fixed sleeve block (25) is fixedly connected with the conveying device base (1), and the outer side of the second transmission rod (21) is also fixedly connected with a limiting block (26) near the front and rear ends of the second fixed sleeve block (25).

5. The tetrahydrofuran and 1,4-butanediol polymer synthesis system of claim 4, wherein: The top end of the transmission block (23) is sleeved outside the bottom end of the fixed seat (27), and the transmission block (23) is rotationally connected with the fixed seat (27), the top end of the fixed seat (27) is fixedly connected with the bottom end of the push rod (28), the outer side of the push rod (28) is sleeved with the third fixed sleeve block (29), and the push rod (28) is slidingly connected with the third fixed sleeve block (29), and the third fixed sleeve block (29) is fixedly connected with the outer side of the conveying device base (1).

6. The tetrahydrofuran and 1,4-butanediol polymer synthesis system of claim 5, wherein: The top end of the conveying device base (1) is provided with a screening box (30) near the position below the synthetic purification device main body (2), the bottom end of the screening box (30) is also provided with a moving rod (32) near the corner position, and the bottom end of the screening box (30) is fixedly connected with the top end of the moving rod (32), the bottom end of the moving rod (32) is inserted into the sleeve rod (31), and the moving rod (32) is slidingly connected with the sleeve rod (31), the inner bottom end of the sleeve rod (31) is fixedly connected with the bottom end of the first reset spring (33), and the top end of the first reset spring (33) is fixedly connected with the bottom end of the moving rod (32).

7. The tetrahydrofuran and 1,4-butanediol polymer synthesis system of claim 6, wherein: The left and right ends of the moving rod (32) are also fixedly connected with the moving block (34) on one side, and the left and right sides of the sleeve rod (31) are also provided with limiting grooves (35), the other end of the moving block (34) is inserted into the limiting groove (35), and the moving block (34) is slidingly connected with the limiting groove (35).

8. The tetrahydrofuran and 1,4-butanediol polymer synthesis system of claim 7, wherein: The inner bottom of the conveying belt (12) is provided with a second transmission roller (36), and the conveying belt (12) is drivingly connected with the second transmission roller (36), the outer sides of the front and rear ends of the second transmission roller (36) are also sleeved with a moving sleeve block (37), and the second transmission roller (36) is drivingly connected with the moving sleeve block (37), the moving sleeve block (37) is sleeved outside the guide rod (38), and the moving sleeve block (37) is slidingly connected with the guide rod (38), the upper and lower ends of the guide rod (38) are fixedly connected with the inner wall of the fixed frame (39), and the bottom end of the fixed frame (39) is fixedly connected with the conveying device base (1).

9. The tetrahydrofuran and 1,4-butanediol polymer synthesis system of claim 8, wherein: The outer side of the guide rod (38) is sleeved with a second reset spring (40), the top end of the second reset spring (40) is fixedly connected with the inner top end of the fixed frame (39), and the bottom end of the second reset spring (40) is fixedly connected with the top end of the moving sleeve block (37).

10. A method for purifying detection of tetrahydrofuran and 1,4-butanediol polymer comprising the tetrahydrofuran and 1,4-butanediol polymer synthesis system according to any one of claims 1 to 9, characterized in that, The method comprises the following steps: S1: tetrahydrofuran and 1,4-butanediol are subjected to polymerization reaction in the synthetic purification device main body (2), and the purified polymer falls into the screening box (30); S2: through the cooperation of the push rod (28) and the first reset spring (33), the screening box (30) reciprocates up and down, realizing the vibration screening of the polymer, and the screened polymer is uniformly dispersed on the conveying belt (12), avoiding accumulation; S3: the motor (10) drives the first transmission roller (11) to drive the conveying belt (12) to run, and the dispersed polymer is conveyed to the position below the detection device main body (3); S4: the second transmission roller (36) cooperates with the second reset spring (40) to automatically adjust the conveying belt tension to prevent loosening. S5: The detection device body (3) is provided with detection cameras and sensors, which can collect images and detect physical properties of the uniformly distributed polymers.

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