Low molecule removing device

Abstract

The invention relates to a low molecule removing device which comprises a supporting seat, and the supporting seat is fixed with the top of the tank body. A pattern plate structure is arranged, a stepped hole structural form is adopted, and the volume of a large hole in the upper portion is reserved to be large, so that a liquid storage tank is formed, solidification can be delayed, and the whole liquid storage tank can be stirred through flowing of materials in small holes in the lower portion; by adopting an exquisite design concept, the defect that holes in the upper part of the pattern plate are easy to solidify and block is effectively delayed, so that the overall energy consumption of the low molecule remover is reduced; a heating module is arranged, the heating module is spliced and fixed through a first fixing frame and a second fixing frame, a screw cap is rotated anticlockwise, so that the screw cap is in threaded transmission towards the front end of a wiring cylinder, a clamping block makes contact with clamping of a connecting wire, meanwhile, a movable cap drives a push rod to move towards the front end, and an eccentric wheel relieves positioning of a convex plate; and the heating structure I can be taken down from the fixing frame I upwards, so that the heating structure can be disassembled quickly.

Description

Technical Field

[0001] The present invention relates to the technical field of silicon production equipment, and particularly to a low-molecular-weight remover. Background Art

[0002] In the production process of silicone oil and silicone rubber, due to the reason of polymerization equilibrium, there are always some methylcyclosiloxane mixtures (DMC), low-molecular-weight linear polydimethylsiloxane and the decomposition product trimethylamine of the catalyst tetramethylammonium hydroxide in the products. The existence of these low-molecular-weight volatile components will affect the quality and service performance of the products.

[0003] The low-molecular-weight remover is an important device, mainly used to remove low-molecular-weight components in silicone oil or other silicon-based materials to improve the quality and performance of the products. Traditional low-molecular-weight removers usually consume high energy, and during the use of the low-molecular-weight remover, since a heating module is often integrated on the low-molecular-weight remover and the installation position is often fixed, it is difficult to disassemble and assemble, and it is not convenient for maintenance and replacement. Summary of the Invention

[0004] (I) Technical Problems to be Solved To solve the above technical problems, the present invention provides a low-molecular-weight remover.

[0005] (II) Technical Solutions Based on this, the present invention provides the following technical solutions: A low-molecular-weight remover, comprising a support base; The support base is fixed to the top of the tank body. A cooling module is arranged at the top of the tank body. The tank body is fixed to the bottom of the pot cover. The tank body is in contact with the inner side of the heating module. An axial flow pump is embedded and installed in the middle of the tank body. The upper end of the tank body is a vacuum chamber. A perforated plate structure is fixed inside the vacuum chamber. A liquid distributor is arranged at the bottom of the perforated plate structure. A residual liquid discharge pipe is connected to the bottom of the tank body; The perforated plate structure includes a perforated plate, stepped holes, and a liquid storage pool. The perforated plate is fixed inside the vacuum chamber. The stepped holes are equidistantly distributed inside the perforated plate. A liquid storage pool is arranged at the top of the stepped holes. The stepped holes include a middle through hole, an upper through hole, and a lower through hole. The upper and lower sides of the middle through hole are respectively communicated with the upper through hole and the lower through hole.

[0006] Preferably, the cross-section of the upper through hole is in the shape of an inverted isosceles trapezoid, and the included angle between the left and right side walls of the upper through hole extending from top to bottom is 90 degrees. The opening diameter of the lower end of the upper through hole can be 3 cm. The opening diameter of the lower end of the lower through hole can be 0.8 cm. The heights of the middle through hole, the upper through hole, and the lower through hole can be 17 cm.

[0007] Preferably, multiple columns of the stepped holes are provided, and the stepped holes in each column are arranged in a staggered manner, with a staggering angle of sixty degrees. The distance between the stepped holes at the same level can be 5 cm, and the distance between the staggered stepped holes 82 can be 4.33 cm.

[0008] Preferably, the heating module includes a first fixed frame, a first electrothermal structure, a locking mechanism, a connecting piece, a second fixed frame, and a second electrothermal structure. The top of the first fixed frame is engaged with the first electrothermal structure, and the locking mechanism is fixed to the front end of the first fixed frame. The second electrothermal structure is embedded and installed at the top of the second fixed frame.

[0009] Preferably, the structure of the first fixed frame coincides with the structure of the second fixed frame, and connecting pieces are fixed to both the left and right sides of the first fixed frame and the second fixed frame. The connecting piece of the first fixed frame and the connecting piece of the second fixed frame are locked to each other by bolts.

[0010] Preferably, the first electrothermal structure includes a clamping block, a convex plate, a heat insulation layer, an electrothermal wire, and a connecting wire. The top of the convex plate is fixed to the clamping block, and a gap is provided between the convex plate and the clamping block. The top of the first fixed frame is embedded in the gap. The bottom of the clamping block is fixed with a heat insulation layer, and the electrothermal wire is wrapped inside the heat insulation layer. The left end of the electrothermal wire is connected with a connecting wire.

[0011] Preferably, the heat insulation layer is arranged in a structure like a string of gourds, and multiple groups of electrothermal wires are vertically distributed inside the heat insulation layer.

[0012] Preferably, the locking mechanism includes a wiring cylinder, a screw cap, a clamping block, a wire slot, a push rod, a first guide seat, a connecting rod, a second guide seat, a receiving rod, an eccentric wheel, and a movable seat. The wiring cylinder is embedded and installed at the front end of the first fixed frame. The front end of the wiring cylinder is in threaded cooperation with the screw cap. The push rod is slidably matched with the inner sides of the first guide seat and the second guide seat. The bottoms of the first guide seat and the second guide seat are respectively fixed to the wiring cylinder. The push rod is movably connected with the connecting rod. The connecting rod is slidably matched with the left end of the receiving rod by a rotating shaft. The receiving rod is fixed to the left end of the eccentric wheel. The eccentric wheel is movably matched with the inner side of the movable seat. The bottom of the movable seat is fixed to the wiring cylinder.

[0013] Preferably, the middle part of the screw cap has a cavity structure, and clamping blocks are circumferentially distributed inside the screw cap. The clamping blocks are in a tapered structure with a wider left side and a narrower right side. A wire slot is opened in the middle part of the wiring cylinder, and the shape of the left end of the wire slot is in line with the shape of the clamping block.

[0014] Preferably, a movable cap is provided at the rear end of the screw cap. The movable cap is movably connected to the rear end of the screw cap and moves synchronously with the screw cap. The movable cap is fixed to the front end of the push rod, which is convenient for the movable cap to push the push rod to move backward.

[0015] (III) Beneficial effects Compared with the prior art, the present invention provides a low-molecular-weight remover, which has the following beneficial effects: 1. For the low-molecular-weight remover, by setting a perforated plate structure, adopting a stepped hole structure form, and leaving a larger volume for the upper large holes, a liquid storage pool is formed. Firstly, it can delay the occurrence of solidification. Secondly, the flow of the material in the lower small holes will also "stir" the overall liquid storage pool. With a delicate design concept, it effectively delays the defects of easy solidification and blockage of the holes in the upper part of the perforated plate, thereby reducing the overall energy consumption of the low-molecular-weight remover.

[0016] 2. For the low-molecular-weight remover, by setting a heating module, the heating module is spliced and fixed through a first fixing frame and a second fixing frame. And by rotating the screw cap counterclockwise, the screw cap is thread-driven towards the front end of the wiring cylinder, the clamping block contacts and clamps the connecting wire. At the same time, the movable cap drives the push rod to move forward, so that the eccentric wheel releases the positioning of the convex plate, and then the first heating structure can be removed upwards from the first fixing frame, realizing the rapid disassembly of the heating structure. Different from the traditional integrated method, it can not only adjust the installation position of the heating module, but also quickly disassemble the heating module to achieve rapid repair and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the internal structure of the low-molecular-weight remover of the present invention; Figure 3 Schematic diagram of the partial slope structure of the perforated plate structure of the present invention; Figure 4 Schematic diagram of the partial enlarged structure of the perforated plate structure of the present invention; Figure 5 Top view structure diagram of the perforated plate structure of the present invention; Figure 6 Stereoscopic structure diagram of the heating module of the present invention; Figure 7 Front view structure diagram of the first electric heating structure of the present invention; Figure 8 Stereoscopic structure diagram of the locking mechanism of the present invention; Figure 9 Planar structure diagram of the locking mechanism of the present invention; Figure 10 Schematic diagram of the partial enlarged structure of the locking mechanism of the present invention.

[0018] In the figure: 1, support base, 2, tank body, 3, cooling module, 4, pot cover, 5, heating module, 6, axial flow pump, 7, vacuum chamber, 8, flower plate structure, 9, liquid distributor, 10, residual liquid discharge pipe, 81, flower plate, 82, step hole, 83, liquid storage tank, 821, middle through hole, 822, upper through hole, 823, lower through hole, 51, fixed frame 1, 52, electric heating structure 1, 53, locking mechanism, 54, connecting piece, 55, fixed Frame 2, 56, electric heating structure 2, 521, locking block, 522, convex plate, 523, insulation layer, 524, heating wire, 525, connecting wire, 531, wiring barrel, 532, screw cap, 533, clamping block, 534, threading groove, 535, push rod, 536, guide seat 1, 537, connecting rod, 538, guide seat 2, 539, receiving rod, 5310, eccentric wheel, 5311, movable seat, 5321, movable cap. DETAILED DESCRIPTION

[0019] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0020] See also Figures 1 - 5 A low-molecular-weight removal device comprises a support base 1; the support base 1 is fixed to the top of a tank body 2, a cooling module 3 is arranged on the top of the tank body 2, the tank body 2 is fixed to the bottom of a pot cover 4, the tank body 2 is in contact with the inner side of a heating module 5, an axial flow pump 6 is embedded and installed in the middle of the tank body 2, the upper end of the tank body 2 is a vacuum chamber 7, a flower plate structure 8 is fixed inside the vacuum chamber 7, a liquid distributor 9 is arranged at the bottom of the flower plate structure 8, and a residual liquid discharge pipe 10 is connected to the bottom of the tank body 2; the flower plate structure 8 comprises a flower plate 81, a step hole 82, and a liquid storage tank 83, the flower plate 81 is fixed to the inside of the vacuum chamber 7, the step holes 82 are evenly distributed inside the flower plate 81, a liquid storage tank 83 is arranged on the top of the step hole 82, the step hole 82 comprises a middle through hole 821, an upper through hole 822, and a lower through hole 823, and the upper and lower sides of the middle through hole 821 are respectively connected with the upper through hole 822 and the lower through hole 823.

[0021] In some embodiments, the cross-section of the upper through-hole 822 has an inverted isosceles trapezoidal structure, and the included angle between the left and right side walls of the upper through-hole 822 along the extension line from top to bottom is 90 degrees. The diameter of the lower opening of the upper through-hole 822 can be 3 cm, and the diameter of the lower opening of the lower through-hole 823 can be 0.8 cm. The heights of the middle through-hole 821, the upper through-hole 822, and the lower through-hole 823 can be 17 cm. The stepped holes 82 are arranged in multiple columns, and the stepped holes 82 in each column are arranged in a staggered manner, with a staggering angle of 60 degrees. The distance between the stepped holes 82 at the same level can be 5 cm, and the distance between the staggered stepped holes 82 can be 4.33 cm. The structure of the stepped holes is adopted (the aperture of the large hole is 2-4 times that of the small hole, and the height of the large hole is 8-12 times that of the small hole), and the volume of the upper large hole is left larger, thus forming a liquid storage pool 83. First, it can delay the occurrence of solidification. Second, the flow of the material in the lower small holes will also "stir" the overall liquid storage pool. The ingenious design concept effectively delays the defects of easy solidification and blockage of the holes in the upper part of the flower plate. The cooling module 3 is a shell-and-tube cooler, which is composed of multiple parallel tube bundles and exchanges heat through the fluids inside and outside the tubes. The axial flow pump 6 is a vane pump with low head and large flow rate, and realizes fluid transportation by applying axial thrust to the liquid through the rotating impeller. The liquid distributor 9 is a channel-type distributor, which realizes uniform liquid transportation through a multi-channel design. The top of the tank body 2 is connected with a condenser (not shown in the figure), and the low-boiling substances are pumped and condensed through the condenser.

[0022] Please refer to Figures 6 - 7 , a low-molecular-weight remover. The heating module 5 includes a first fixing frame 51, a first electric heating structure 52, a locking mechanism 53, a connecting piece 54, a second fixing frame 55, and a second electric heating structure 56. The top of the first fixing frame 51 is engaged with the first electric heating structure 52. The locking mechanism 53 is fixed at the front end of the first fixing frame 51. The second electric heating structure 56 is embedded and installed at the top of the second fixing frame 55. The structure of the first fixing frame 51 is consistent with that of the second fixing frame 55, and connecting pieces 54 are fixed on both the left and right sides of the first fixing frame 51 and the second fixing frame 55. The connecting piece 54 of the first fixing frame 51 and the connecting piece 54 of the second fixing frame 54 are locked to each other by bolts.

[0023] In some embodiments, the electrothermal structure 52 includes a clamping block 521, a convex plate 522, a heat insulation layer 523, a heating wire 524, and a connecting wire 525. The top of the convex plate 522 is fixed to the clamping block 521, and there is a gap between the convex plate 522 and the clamping block 521. The top of the fixed frame 51 is embedded in the gap. The bottom of the clamping block 521 is fixed with a heat insulation layer 523. The heating wire 524 is wrapped inside the heat insulation layer 523. The left end of the heating wire 524 is connected with a connecting wire 525. The heat insulation layer 523 is arranged in a structure like a string of gourds, and multiple groups of heating wires 524 are vertically distributed inside the heat insulation layer 523, which is convenient for the heat insulation layer 523 to be in contact and fit with the surface of the tank body 2. The material of the heat insulation layer 523 can be one or more of alumina ceramic fiber, aluminum silicate fiber cotton, ceramic fiber blanket / nano heat insulation board, which is convenient for transferring the heat on the heating wire 524 into the tank body 2. The heating wire 524 can also be called a heating wire or a heating filament, which is a type of heating wire.

[0024] Please refer to Figures 8 - 10 , a low-molecular-weight remover. The locking mechanism 53 includes a wiring cylinder 531, a screw cap 532, a clamping block 533, a wire slot 534, a push rod 535, a first guide seat 536, a connecting rod 537, a second guide seat 538, a receiving rod 539, an eccentric wheel 5310, and a movable seat 5311. The wiring cylinder 531 is embedded and installed at the front end of the fixed frame 51. The front end of the wiring cylinder 531 is in threaded cooperation with the screw cap 532. The push rod 535 is slidably matched with the inner sides of the first guide seat 536 and the second guide seat 538. The bottoms of the first guide seat 536 and the second guide seat 538 are respectively fixed to the wiring cylinder 531. The push rod 535 is movably connected with the connecting rod 537. The connecting rod 537 is slidably matched with the left end rotating shaft of the receiving rod 539. The receiving rod 539 is fixed to the left end of the eccentric wheel 5310. The eccentric wheel 5310 is movably matched with the inner side of the movable seat 5311. The bottom of the movable seat 5311 is fixed to the wiring cylinder 531.

[0025] In some embodiments, the middle of the screw cap 532 has a cavity structure, and clamping blocks 533 are circumferentially distributed inside the screw cap 532. The clamping blocks 533 are in a tapered structure with a wider left side and a narrower right side. A wire slot 534 is opened in the middle of the wiring cylinder 531. The left end slot of the wire slot 534 is in line with the shape of the clamping block 533. A movable cap 5321 is arranged at the rear end of the screw cap 532. The movable cap 5321 is movably connected to the rear end of the screw cap 532 and moves synchronously with the screw cap 532. The movable cap 5321 is fixed to the front end of the push rod 535, which is convenient for the movable cap 5321 to push the push rod 535 to move backward. As the name implies, the eccentric wheel 5310 means that the center of this wheel is not at the rotation point, generally referring to a circular wheel. When the circle does not rotate around its own center, it becomes an eccentric wheel 5310. The eccentric wheel 5310 is engaged with the front end of the convex plate 522.

[0026] In summary, before use, insert and fix the convex plate 522 and the engaging block 521 of the electrothermal structure 52 into the fixing frame 51. At the same time, pass the connecting wire 525 on the heating wire 524 through the wiring cylinder 531, so that the connecting wire 525 passes through the wire groove 534 and the inner side of the clamping block 533, and finally passes through the middle of the screw cap 532. After passing through, rotate the screw cap 532 clockwise to make the screw cap 532 drive in a threaded manner with the wiring cylinder 531, and push the movable cap 5321 to move synchronously backward. When the screw cap 532 moves backward, drive the clamping block 533 to be embedded in the wire groove 534, so that the wire groove 534 squeezes the clamping block 533 toward the middle, thereby clamping the connecting wire 525 to prevent the connecting wire 525 from loosening; And when the movable cap 5321 moves backward, drive the push rod 535 to move synchronously backward. The push rod 535 drives the receiving rod 539 to swing clockwise through the connecting rod 537. The swing of the receiving rod 539 causes the eccentric wheel 5310 to perform an eccentric motion and engage with the convex plate 522, thereby positioning the convex plate 522; Similarly, position the electrothermal structure 56 on the fixing frame 55. Then, splice the fixing frame 51 and the fixing frame 55 with each other to clamp the tank body 2, and the overall position of the heating module 5 can be adjusted according to the height to be heated. Subsequently, lock the connecting pieces 54 that are attached to the fixing frame 51 and the fixing frame 55 through bolts, and the installation of the heating module 5 can be started, and the operation is convenient and fast; Vacuum suck the pre-prepared raw materials into the tank body 2 of the de-low molecular device. Subsequently, the heating wire 524 is heated to the polymerization temperature and reacts for a period of time; after polymerization, the axial flow pump 6 placed in the tank body 2 sucks the liquid from the bottom and is lifted to the vacuum chamber 7 through the circulation pipe, and is dispersed into a liquid film and a liquid column in the form of liquid droplets through the flower plate structure 8. The structure of the stepped holes (the aperture of the large hole is 2-4 times that of the small hole, and the height of the large hole is 8-12 times that of the small hole) is adopted, and the volume of the upper large hole is left large, so that a liquid storage pool 83 is formed. One is to delay the occurrence of solidification, and the other is that the flow of the lower small hole material will also "stir" the overall liquid storage pool, effectively delaying the defects of easy solidification and blockage of the upper holes of the flower plate with a delicate design concept. Then, it is further distributed in the liquid distributor 9 so that the liquid material flows down evenly along the evaporation surface in a film shape; Under vacuum conditions, the low-boiling substances in the heated liquid material can be pumped away to the condenser at the top of the vacuum chamber for condensation; they can also be condensed by the cooling module 3 opposite to the evaporation surface to achieve molecular distillation. The liquid material after de-low molecular weight descends toward the bottom and is sent to the top vacuum chamber 7 by the axial flow pump 6 again for de-low molecular weight. This cycle is repeated until a qualified product is obtained.

[0027] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-molecular-weight remover, characterized in that: including a support base (1); The support base (1) is fixed to the top of the tank body (2). A cooling module (3) is provided at the top of the tank body (2). The bottom of the tank body (2) is fixed to the bottom of the pot lid (4). The tank body (2) is in contact with the inner side of the heating module (5). An axial flow pump (6) is embedded in the middle of the tank body (2). The upper end of the tank body (2) is a vacuum chamber (7). A perforated plate structure (8) is fixed inside the vacuum chamber (7). A liquid distributor (9) is provided at the bottom of the perforated plate structure (8). The bottom of the tank body (2) is connected to a residual liquid discharge pipe (10); The perforated plate structure (8) includes a perforated plate (81), stepped holes (82), and a liquid storage pool (83). The perforated plate (81) is fixed inside the vacuum chamber (7). The stepped holes (82) are equidistantly distributed inside the perforated plate (81). A liquid storage pool (83) is provided at the top of the stepped holes (82). The stepped holes (82) include a middle through hole (821), an upper through hole (822), and a lower through hole (823). The upper and lower sides of the middle through hole (821) are respectively communicated with the upper through hole (822) and the lower through hole (823).

2. The de - low - molecule device according to claim 1, characterized in that: The cross-section of the upper through hole (822) is in the shape of an inverted isosceles trapezoid, and the included angle between the left and right side walls of the upper through hole (822) extending from top to bottom is ninety degrees.

3. A low molecular weight removing device according to claim 1, characterized in that: Multiple columns of the stepped holes (82) are provided, and the stepped holes (82) in each column are arranged in a staggered manner, and the staggering angle is sixty degrees.

4. A low molecular weight removing apparatus according to claim 1, characterized in that: The heating module (5) includes a first fixing frame (51), a first electric heating structure (52), a locking mechanism (53), a connecting piece (54), a second fixing frame (55), and a second electric heating structure (56). The top of the first fixing frame (51) is engaged with the first electric heating structure (52). The front end of the first fixing frame (51) is fixed with a locking mechanism (53). The second electric heating structure (56) is embedded and installed at the top of the second fixing frame (55).

5. The de-low molecular weight device according to claim 4, characterized in that: The structure of the first fixing frame (51) is consistent with the structure of the second fixing frame (55). Connecting pieces (54) are fixed on the left and right sides of the first fixing frame (51) and the second fixing frame (55). The connecting piece (54) of the first fixing frame (51) and the connecting piece (54) of the second fixing frame (55) are locked to each other by bolts.

6. The de - low - molecular - weight device according to claim 4, characterized in that: The first electric heating structure (52) includes a engaging block (521), a convex plate (522), a heat insulation layer (523), an electric heating wire (524), and a connecting wire (525). The top of the convex plate (522) is fixed to the engaging block (521), and a gap is provided between the convex plate (522) and the engaging block (521). The top of the first fixing frame (51) is embedded in the gap. The bottom of the engaging block (521) is fixed with a heat insulation layer (523). The electric heating wire (524) is wrapped inside the heat insulation layer (523). The left end of the electric heating wire (524) is connected to a connecting wire (525).

7. A low molecular weight removing device according to claim 6, characterized in that: The heat insulation layer (523) is arranged in a structure like a string of gourds, and multiple groups of electric heating wires (524) are vertically distributed inside the heat insulation layer (523).

8. The demolecularizer according to claim 4, characterized in that: The locking mechanism (53) includes a wiring cylinder (531), a screw cap (532), a clamping block (533), a wire groove (534), a push rod (535), a first guide seat (536), a connecting rod (537), a second guide seat (538), a receiving rod (539), an eccentric wheel (5310), and a movable seat (5311). The wiring cylinder (531) is embedded and installed at the front end of the first fixed frame (51). The front end of the wiring cylinder (531) is in threaded cooperation with the screw cap (532). The push rod (535) is slidably fitted inside the first guide seat (536) and the second guide seat (538). The bottoms of the first guide seat (536) and the second guide seat (538) are respectively fixed to the wiring cylinder (531). The push rod (535) is movably connected to the connecting rod (537). The connecting rod (537) is slidably fitted with the left end rotating shaft of the receiving rod (539). The receiving rod (539) is fixed to the left end of the eccentric wheel (5310). The eccentric wheel (5310) is movably fitted inside the movable seat (5311). The bottom of the movable seat (5311) is fixed to the wiring cylinder (531).

9. The low-molecular-weight removing device according to claim 8, characterized in that: The middle of the screw cap (532) has a cavity-like structure, and clamping blocks (533) are circumferentially distributed inside the screw cap (532). The clamping blocks (533) have a tapered structure that is wider on the left and narrower on the right. A wire groove (534) is opened in the middle of the wiring cylinder (531). The left end groove of the wire groove (534) is shaped to match the shape of the clamping block (533).

10. A low-molecular-weight removing device according to claim 8, characterized in that: A movable cap (5321) is provided at the rear end of the screw cap (532). The movable cap (5321) is movably connected to the rear end of the screw cap (532) and moves synchronously with the screw cap (532). The movable cap (5321) is fixed to the front end of the push rod (535).

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