Anti-blocking polyformaldehyde concentration device

Abstract

A top cover is installed at the top end of a kettle body through an upper bin body, a motor is arranged on the upper surface of the top cover, an output shaft of the motor is connected with a main shaft, a stirring paddle is arranged on the lower portion of the main shaft, a steam outlet is formed in one side of the upper portion of the top cover, and the outer end of the steam outlet is connected with a condenser connecting pipe. The lower surface of the top cover is provided with a shaft rod through a hanging bracket, the shaft rod is provided with a spiral blade, the spiral blade is rotationally arranged in the condenser connecting pipe and the steam outlet, and the main shaft is in linkage with the shaft rod through cooperation of a bevel gear. On the other hand, the spiral blade rotates continuously, it can be guaranteed that the steam outlet or the condenser connecting pipe cannot be blocked by crystals generated by low temperature or high concentration of gas-phase formaldehyde in the steam outlet and the condenser connecting pipe, manual cleaning is not needed, and convenience is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concentration equipment, in particular to an anti-blocking polyoxymethylene concentration device. Background Art

[0002] Polyoxymethylene (POM), also known as acetal resin, polyoxymethylene, polyacetal, is a thermoplastic crystalline polymer, known as "super steel" or "sport steel". During the production of polyoxymethylene, the formaldehyde solution is concentrated multiple times to form formaldehyde gas phase vapor, which enters the condenser for condensation treatment, thereby increasing the formaldehyde concentration to meet the reaction requirements of polyoxymethylene.

[0003] Formaldehyde is easy to crystallize at low temperature or high concentration, and crystallization is easy to occur in the steam outlet and the pipe connected to the condenser of the current concentration device. After each period of use, the steam outlet or the condenser connecting pipe needs to be cleaned manually, which is inconvenient. Therefore, an improved technology is urgently needed to solve this problem existing in the prior art. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-blocking polyformaldehyde concentration device. A motor drives the stirring paddle and the spiral blade to rotate at the same time. On the one hand, stirring during concentration is achieved to ensure the concentration effect. On the other hand, the spiral blade rotates continuously to ensure that the steam outlet and the condenser connecting pipe will not be blocked by crystals produced by the low temperature or high concentration of gaseous formaldehyde. No manual cleaning is required, and the convenience is greatly improved, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a kind of anti-blocking polyformaldehyde concentration device, including a kettle body, an upper warehouse body, a top cover, a motor, a main shaft, a stirring paddle, a steam outlet, a condenser connecting pipe, a support frame, a shaft rod, a spiral blade, a support plate, a filter screen plate and a jacket, the top end of the kettle body is connected to the upper warehouse body, the top end of the upper warehouse body is installed with a top cover, a motor seat is arranged on the upper surface of the top cover, a motor is arranged on the upper surface of the motor seat, the output shaft of the motor is connected to the main shaft through a coupling, the main shaft is arranged inside the top cover, the upper warehouse body and the kettle body, a stirring paddle is arranged at the lower part of the main shaft, the stirring paddle is movably arranged in the kettle body, and a stirring paddle is arranged at the upper part of the top cover. A steam outlet is arranged on the side, the outer end of the steam outlet is connected to a condenser connecting pipe, a support frame is arranged at one end of the condenser connecting pipe away from the steam outlet, a plurality of hangers are arranged on the lower surface of the top cover, one end of the shaft rod cooperates with the hanger, and the other end of the shaft rod cooperates with the support frame, the shaft rod is provided with a spiral blade, and the spiral blade is rotatably arranged in the condenser connecting pipe and the steam outlet, an active bevel gear is arranged on the upper part of the main shaft, a driven bevel gear is arranged at one end of the shaft rod away from the support frame, and the driven bevel gear is meshed with the active bevel gear, a support plate is arranged on the inner wall of the upper warehouse body, a filter screen plate is arranged on the upper surface of the support plate, and a jacket is arranged on the outside of the kettle body;

[0006] The filter screen plate comprises an outer ring, an inner ring, a connecting rod and a filter screen. The inner side of the outer ring is provided with an inner ring through a plurality of connecting rods. The inner ring and the outer ring are arranged coaxially. The main shaft passes through the inner ring. The outer diameter of the main shaft is consistent with the inner diameter of the inner ring. The filter screen is provided between the outer ring and the inner ring.

[0007] The support frame includes a center plate and support rods. A plurality of support rods are arranged on the periphery of the center plate. The outer ends of the support rods are connected to the condenser connecting pipes. An axis groove is opened on the inner side of the center plate. The axis rod is movably arranged in the axis groove at one end away from the driven bevel gear.

[0008] Preferably, the utility model provides an anti-blocking polyoxymethylene concentration device, wherein a plurality of feeding ports are provided on the outer surface of the upper bin body.

[0009] Preferably, the utility model provides an anti-blocking polyoxymethylene concentration device, wherein a liquid phase discharge port is provided at the bottom of the kettle body.

[0010] Preferably, the utility model provides an anti-blocking polyformaldehyde concentration device, wherein a plurality of support seats are arranged on the periphery of the jacket.

[0011] Preferably, the utility model provides an anti-blocking polyformaldehyde concentration device, wherein a condensate discharge outlet and a hot air inlet are provided at the lower portion of the jacket, and a hot air outlet is provided at the upper portion of the jacket.

[0012] Preferably, the utility model provides an anti-blocking polyformaldehyde concentration device, wherein the stirring paddle includes a blade and a connecting tube, the connecting tube is connected to the blade, and the connecting tube is sleeved with the bottom of the main shaft and fastened by bolts.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The steam outlet is connected to a condenser connecting pipe, a hanger is arranged inside the top cover, one end of a shaft with spiral blades cooperates with the hanger and is installed with a driven bevel gear, the driven bevel gear is meshed with the active bevel gear at the upper end of the main shaft, the spiral blades are located in the condenser connecting pipe and the steam outlet, when the motor drives the main shaft to rotate, the main shaft drives the stirring paddle and the shaft with spiral blades to rotate respectively, so that the spiral blades rotate at the same time, during concentration, one motor drives the stirring paddle and the spiral blades to rotate at the same time, on the one hand, stirring during concentration is achieved to ensure the concentration effect, on the other hand, the spiral blades rotate continuously to ensure that the steam outlet and the condenser connecting pipe will not be blocked by crystals produced by low temperature or high concentration of gaseous formaldehyde, no manual cleaning is required, and the convenience is greatly improved, and a filter screen plate is arranged in the upper bin body, the main shaft cooperates with the inner ring of the filter screen plate, so as to ensure the stability of the main shaft, and then ensure that the active bevel gear and the driven bevel gear remain in a meshing state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the condenser connecting pipe structure;

[0017] Figure 3 Schematic diagram of the filter screen structure;

[0018] Figure 4 is a schematic diagram of the support frame structure;

[0019] Figure 5 Schematic diagram of the stirring paddle structure.

[0020] In the figure: kettle body 1, upper warehouse body 2, top cover 3, motor 4, main shaft 5, stirring paddle 6, steam outlet 7, condenser connecting pipe 8, support frame 9, shaft rod 10, spiral blade 11, support plate 12, filter screen plate 13, jacket 14, motor base 15, hanger 16, active bevel gear 17, driven bevel gear 18, feeding port 19, liquid phase discharge port 20, support base 21, condensate discharge port 22, hot gas inlet 23, hot gas outlet 24, paddle 601, connecting tube 602, center plate 901, support rod 902, shaft groove 903, outer ring 1301, inner ring 1302, connecting rod 1303, filter screen 1304. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model;

[0022] It should be noted that, in the description of the present invention, the terms "inside", "outside", "upper", "lower", "both sides", "one end", "the other end", "left" and "right" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] See also Figure 1-2The utility model provides a technical solution: a polyformaldehyde concentration device that prevents blocking, including a kettle body 1, an upper warehouse body 2, a top cover 3, a motor 4, a main shaft 5, a stirring paddle 6, a steam outlet 7, a condenser connecting pipe 8, a support frame 9, a shaft 10, a spiral blade 11, a support plate 12, a filter screen plate 13 and a jacket 14. The top of the kettle body 1 is connected to the upper warehouse body 2, and the outer surface of the upper warehouse body 2 is provided with a plurality of feeding ports 19 to facilitate the addition of formaldehyde solution into the kettle body 1. The top of the upper warehouse body 2 is provided with a top cover 3. The upper surface of the top cover 3 is provided with a motor seat 15, and the upper surface of the motor seat 15 is provided with a motor 4. The output shaft of the motor 4 is connected to the main shaft 5 through a coupling. The main shaft 5 is arranged inside the top cover 3, the upper warehouse 2 and the kettle body 1. The lower part of the main shaft 5 is provided with a stirring paddle 6, and the stirring paddle 6 is movably arranged in the kettle body 1. A steam outlet 7 is provided on one side of the upper part of the top cover 3. The outer end of the steam outlet 7 is connected to a condenser connecting pipe 8. A support frame 9 is provided at the end of the condenser connecting pipe 8 away from the steam outlet 7. A plurality of hanging The main shaft 5 is provided with a driving bevel gear 17, and the end of the shaft 10 is provided with a driven bevel gear 18 away from the support frame 9. The driven bevel gear 18 is meshed with the driving bevel gear 17. The inner wall of the upper warehouse 2 is provided with a support plate 12, and the upper surface of the support plate 12 is provided with a filter screen plate 13. The outer surface of the kettle body 1 is provided with a filter screen plate 13. A jacket 14 is provided at the bottom, and a plurality of support seats 21 are provided at the periphery of the jacket 14 for overall support and fixation. A condensate discharge port 22 and a hot gas inlet 23 are provided at the lower part of the jacket 14, and a hot gas outlet 24 is provided at the upper part of the jacket 14. High-temperature hot gas enters the jacket 14 through the hot gas inlet 23, and condensate in the jacket 14 is discharged through the condensate discharge port 22. High-temperature hot gas is discharged through the hot gas outlet 24. A liquid phase discharge port 20 is provided at the bottom of the kettle body 1 for recovering liquid phase formaldehyde;

[0024] like Figure 3 As shown, the filter screen plate 13 includes an outer ring 1301, an inner ring 1302, a connecting rod 1303 and a filter screen 1304. The inner ring 1302 is arranged on the inner side of the outer ring 1301 through a plurality of connecting rods 1303. The inner ring 1302 is coaxially arranged with the outer ring 1301. The main shaft 5 is passed through the inner ring 1302. The outer diameter of the main shaft 5 is consistent with the inner diameter of the inner ring 1302. The filter screen 1304 is arranged between the outer ring 1301 and the inner ring 1302. The filter screen plate 13 is used to filter gaseous formaldehyde.

[0025] like Figure 4As shown, the support frame 9 includes a center plate 901 and a support rod 902. A plurality of support rods 902 are arranged on the periphery of the center plate 901. The outer ends of the support rods 902 are connected to the condenser connecting pipe 8. An axis groove 903 is provided on the inner side of the center plate 901. The end of the axis rod 10 away from the driven bevel gear 18 is movably arranged in the axis groove 903.

[0026] like Figure 5 As shown, the stirring paddle 6 includes a blade 601 and a connecting tube 602 . The connecting tube 602 is connected to the blade 601 . The connecting tube 602 is sleeved on the bottom of the main shaft 5 and fastened by bolts. The stirring paddle 6 of this structure can be connected to and disassembled from the main shaft 5 .

[0027] Installation method and principle of use: First, put the active bevel gear 17 on the main shaft 5, then pass the top of the main shaft 5 through the top cover 3 and connect it to the output shaft of the coupling motor 4, then pass the shaft 10 with the spiral blade 11 through the hanger 16 in the top cover 3, and install the driven bevel gear 18 on the end of the shaft 10 close to the main shaft 5, and slide the active bevel gear 17 up and move it to the corresponding position, and tighten the active bevel gear 17 with bolts. Connect the end of the condenser connecting pipe 8 away from the support frame 9 to the steam outlet 7, and match the shaft groove 903 of the center plate 901 of the support frame 9 with the outer end of the shaft 10, and the driven bevel gear 18 is meshed with the active bevel gear 17. Connect the top cover 3 to the upper warehouse 2, and pass the main shaft 5 through the inner ring 1302 of the filter screen plate 13, then connect the stirring paddle 6 to the main shaft 5 through the connecting tube 602, and finally connect the kettle body 1 to the bottom of the upper warehouse 2 to complete the installation. When in use, high-temperature gas enters the jacket 14 from the hot gas inlet 23 and heats the inside of the kettle body 1, starting the motor 4, which drives the main shaft 5 to rotate, thereby driving the stirring paddle 6 to rotate. At the same time, the active bevel gear 17 and the driven bevel gear 18 on the main shaft 5 cooperate to drive the shaft 10 to rotate, thereby driving the spiral blade 11 to rotate. Formaldehyde is added to the kettle body 1 from the feeding port 19, and the formaldehyde gas vapor is filtered through the filter 1304 and discharged from the steam outlet 7. The utility model has a reasonable structure. The steam outlet 7 is connected to the condenser connecting pipe 8. A hanger 16 is arranged inside the top cover 3. One end of the shaft 10 with the spiral blade 11 cooperates with the hanger 16 and is installed with a driven bevel gear 18. The driven bevel gear 18 is meshed with the active bevel gear 17 at the upper end of the main shaft 5. The spiral blade 11 is located in the condenser connecting pipe 8 and the steam outlet 7. When the motor 4 drives the main shaft 5 to rotate, the main shaft 5 drives the stirring paddle 6 and the shaft 10 with the spiral blade 11 to rotate respectively, so that the spiral blade 11 rotates at the same time. When concentrating, one motor 4 drives the stirring paddle 6 and the shaft 10 with the spiral blade 11 to rotate at the same time. The stirring paddle 6 and the spiral blade 11 rotate, on the one hand, to achieve stirring during concentration to ensure the concentration effect, and on the other hand, the spiral blade 11 rotates continuously to ensure that the steam outlet 7 and the condenser connecting pipe 8 will not be blocked by crystals produced by the low temperature or high concentration of gaseous formaldehyde, without manual cleaning, and the convenience is greatly improved. In addition, a filter screen plate 13 is arranged in the upper warehouse body 2, and the main shaft 5 cooperates with the inner ring 1302 of the filter screen plate 13 to ensure the stability of the main shaft 5, thereby ensuring that the active bevel gear 17 and the driven bevel gear 18 remain in a meshing state.

[0028] The details not described in the present invention are all known technologies to those skilled in the art.

[0029] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A polyoxymethylene concentration device for preventing blockage, characterized in that: The invention comprises a kettle body (1), an upper storage body (2), a top cover (3), a motor (4), a main shaft (5), a stirring paddle (6), a steam outlet (7), a condenser connecting pipe (8), a support frame (9), a shaft (10), a spiral blade (11), a support plate (12), a filter screen (13) and a jacket (14). The top of the kettle body (1) is connected to the upper storage body (2). The top cover (3) is installed on the top of the upper storage body (2). A motor seat (15) is arranged on the upper surface of the top cover (3). A motor (4) is arranged on the upper surface of the motor seat (15). The output shaft of the motor (4) is connected to the main shaft (5) through a coupling. The main shaft (5) is arranged inside the top cover (3), the upper storage body (2) and the kettle body (1). A stirring paddle (6) is arranged at the bottom of the main shaft (5). The stirring paddle (6) is movably arranged in the kettle body (1). A steam outlet (7) is arranged on one side of the upper part of the top cover (3). The outer end of the outlet (7) is connected to a condenser connecting pipe (8), a support frame (9) is provided at one end of the condenser connecting pipe (8) away from the steam outlet (7), a plurality of hangers (16) are provided on the lower surface of the top cover (3), one end of the shaft rod (10) cooperates with the hanger (16), and the other end of the shaft rod (10) cooperates with the support frame (9), the shaft rod (10) is provided with a spiral blade (11), and the spiral blade (11) is rotatably arranged in the condenser connecting pipe (8) and the steam outlet (7), an active bevel gear (17) is provided on the upper part of the main shaft (5), a driven bevel gear (18) is provided at one end of the shaft rod (10) away from the support frame (9), and the driven bevel gear (18) meshes with the active bevel gear (17), a support plate (12) is provided on the inner wall of the upper warehouse body (2), a filter screen plate (13) is provided on the upper surface of the support plate (12), and a jacket (14) is provided on the outside of the kettle body (1); The filter screen plate (13) comprises an outer ring (1301), an inner ring (1302), a connecting rod (1303) and a filter screen (1304); the inner side of the outer ring (1301) is provided with an inner ring (1302) via a plurality of connecting rods (1303); the inner ring (1302) and the outer ring (1301) are arranged coaxially; the main shaft (5) passes through the inner ring (1302); the outer diameter of the main shaft (5) is consistent with the inner diameter of the inner ring (1302); and the filter screen (1304) is provided between the outer ring (1301) and the inner ring (1302); The support frame (9) comprises a center plate (901) and support rods (902). A plurality of support rods (902) are arranged on the periphery of the center plate (901). The outer ends of the support rods (902) are connected to the condenser connecting pipes (8). An axis groove (903) is provided on the inner side of the center plate (901). The axis rod (10) is movably arranged in the axis groove (903) at one end away from the driven bevel gear (18).

2. The anti-blocking polyoxymethylene concentration device according to claim 1, characterized in that: The outer surface of the upper bin body (2) is provided with a plurality of feeding ports (19).

3. The anti-blocking polyoxymethylene concentration device according to claim 1, characterized in that: The bottom of the kettle body (1) is provided with a liquid phase discharge port (20).

4. The anti-blocking polyoxymethylene concentration device according to claim 1, characterized in that: A plurality of support seats (21) are arranged on the periphery of the jacket (14).

5. The anti-blocking polyoxymethylene concentration device according to claim 1, characterized in that: The lower part of the jacket (14) is provided with a condensed water outlet (22) and a hot air inlet (23), and the upper part of the jacket (14) is provided with a hot air outlet (24).

6. The anti-blocking polyoxymethylene concentration device according to claim 1, characterized in that: The stirring paddle (6) comprises a paddle (601) and a connecting tube (602), wherein the connecting tube (602) is connected to the paddle (601), and the connecting tube (602) is sleeved on the bottom of the main shaft (5) and fastened by bolts.

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