Reaction kettle for polyvinyl chloride paste resin

Abstract

The utility model discloses a polyvinyl chloride paste resin reaction kettle, which comprises a kettle body, a kettle cover, a discharge port, a feed port, a liquid inlet, a motor and a stirring cleaning mechanism, the stirring cleaning mechanism comprises a stirring shaft, a first stirring blade, a second stirring blade, a first scraper, a second scraper, a first cleaning brush and a second cleaning brush, the upper end of the stirring shaft is connected with an output shaft of the motor through a coupler, a plurality of groups of first stirring blades and second stirring blades are arranged on the stirring shaft, the first stirring blades and the second stirring blades are vertically staggered up and down at equal intervals, the first scraping plates and the second scraping plates are arranged at the two ends of the first stirring blades, and the second scraping plates are arranged at the two ends of the second stirring blades. And the first cleaning brush and the second cleaning brush are arranged at the two ends of the second stirring blade. The stirring and cleaning mechanism is arranged to clean materials which remain for a long time and are difficult to clean and materials which are adhered to the inner wall of the kettle body in the reaction process, so that material waste is reduced, and efficient cleaning is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of polyvinyl chloride paste resin production, in particular to a reaction kettle for polyvinyl chloride paste resin. Background Art

[0002] Polyvinyl chloride paste resin is widely used in the production of artificial leather, vinyl toys, soft trademarks, wallpaper, paints and coatings, foam plastics, etc. due to its significant advantages such as convenient configuration, stable performance, easy control, easy use, excellent product performance, good chemical stability, certain mechanical strength, and easy coloring.

[0003] Micro-suspension polymerization is a common method for preparing polyvinyl chloride paste resin. The process is as follows: first, part of VCM (5%) is made into a stable emulsion (particle size is about 1.0 μm) by mechanical homogenization, and then polymerization is carried out (an oil-soluble initiator must be selected). The PVC paste resin produced by this method has excellent fluidity, less emulsifier, and improved thermal stability and water resistance of the resin. However, the existing polyvinyl chloride paste resin polymerization reactor is prone to residue on the inner wall of the reactor due to the latex polyvinyl chloride paste resin obtained by the polymerization reaction. After long-term use, the residue accumulates on the inner wall, which brings great challenges to the cleaning work of the reactor. Utility Model Content

[0004] Based on the above background, the purpose of the utility model is to provide a reaction kettle for polyvinyl chloride paste resin.

[0005] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0006] A reaction kettle for polyvinyl chloride paste resin, comprising:

[0007] A kettle body, wherein a kettle cover is arranged on the top of the kettle body, a discharge port is arranged on the bottom of the kettle body, a feed port is arranged on the right side of the top of the kettle cover, a liquid inlet is arranged on the left side of the top of the kettle cover, a motor is arranged at the center of the top of the kettle cover, and an output shaft of the motor passes through the kettle cover and is connected to a stirring and cleaning mechanism in the kettle body through a coupling;

[0008] The stirring and cleaning mechanism includes a stirring shaft, a first stirring blade, a second stirring blade, a first scraper, a second scraper, a first cleaning brush, and a second cleaning brush. The upper end of the stirring shaft is connected to the output shaft of the motor through a coupling. A plurality of groups of the first stirring blades and the second stirring blades are arranged on the stirring shaft. The first stirring blades and the second stirring blades are arranged vertically staggered and evenly spaced up and down. The first scraper and the second scraper are arranged at both ends of the first stirring blade, and the first cleaning brush and the second cleaning brush are arranged at both ends of the second stirring blade.

[0009] Preferably, the top end of the feed port is connected to the feed pipe through a connecting screw sleeve, and a hydrodynamic proportional pump is provided at the other end of the feed pipe, and the hydrodynamic proportional pump is connected to the first storage tank, the first storage tank and the third storage tank through the first pipeline, the second pipeline and the third pipeline respectively, and the first pipeline, the second pipeline and the third pipeline are all provided with power pumps, and the first storage tank, the first storage tank and the third storage tank are respectively filled with pure water, VCM and emulsifier.

[0010] Preferably, the outer wall of the kettle body is provided with a jacket, the upper part of the jacket is provided with a water inlet, the lower part of the jacket is provided with a water outlet, and the other ends of the water inlet and the water outlet are respectively provided with a first sealing cover.

[0011] Preferably, a temperature indicator is provided on the left side of the top of the kettle cover.

[0012] Preferably, a plurality of support blocks are provided at the bottom of the kettle body, shock-absorbing springs are provided at the bottom of the support blocks, support columns are provided at the other ends of the shock-absorbing springs, the bottoms of the support columns are connected through support plates, and rubber pads are provided at the bottom of the support plates.

[0013] Preferably, a second sealing cover is provided at the bottom of the discharge port.

[0014] Preferably, a plurality of sight glasses are provided on the outer wall of the kettle body above the jacket.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model can add the materials in the first storage box, the second storage box and the third storage box to the inside of the kettle body according to the set ratio through the hydraulic proportional pump, that is, it can realize accurate and automatic batching of materials, reduce the labor intensity of the staff, and improve the batching efficiency.

[0017] 2. The utility model can drive the first scraper, the second scraper, the first cleaning brush and the second cleaning brush to move through a motor. The scraper can scrape off the materials that have been retained for a long time and are difficult to clean. The cleaning brush can separate the materials that adhere to the side walls and the bottom of the kettle body during the reaction, thereby reducing material waste, reducing production costs, and achieving efficient cleaning of the inside of the kettle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the stirring and cleaning mechanism of the utility model;

[0021] Among them: 1. kettle body; 2. kettle cover; 3. discharge port; 4. feed port;

[0022] 5. stirring and cleaning mechanism; 51. first cleaning brush; 52. second cleaning brush; 53. first stirring blade; 54. second stirring blade; 55. first scraper; 56. second scraper; 57. stirring shaft;

[0023] 6. Jacket; 7. Temperature indicator; 8. Connecting screw sleeve; 9. Feed pipe; 10. Hydrodynamic proportional pump; 11. First pipeline; 12. Second pipeline; 13. Third pipeline; 14. First storage box; 15. First storage box 16; Third storage box; 17. Power pump; 18. Water inlet; 19. Water outlet; 20. First cover; 21. Liquid inlet; 22. Support block; 23. Shock-absorbing spring; 24. Support column; 25. Support plate; 26. Second cover; 27. Sight glass; 28. Motor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0027] like Figure 1-2 As shown, a reaction kettle for polyvinyl chloride paste resin comprises:

[0028] A kettle body 1, a kettle cover 2 is arranged on the top of the kettle body, a discharge port 3 is arranged on the bottom of the kettle body 1, a feed port 4 is arranged on the right side of the top of the kettle cover 2, a liquid inlet 21 is arranged on the left side of the top of the kettle cover 2, a motor 28 is arranged at the center of the top of the kettle cover 2, and the output shaft of the motor 28 passes through the kettle cover 2 and is connected to the stirring and cleaning mechanism 5 in the kettle body 1 through a coupling;

[0029] The stirring and cleaning mechanism 5 includes a stirring shaft 57, a first stirring blade 53, a second stirring blade 54, a first scraper 55, a second scraper 56, a first cleaning brush 51, and a second cleaning brush 52. The upper end of the stirring shaft 57 is connected to the output shaft of the motor 28 through a coupling. A plurality of groups of the first stirring blades 53 and the second stirring blades 54 are arranged on the stirring shaft 57. The first stirring blades 53 and the second stirring blades 54 are arranged vertically staggered and equidistantly up and down. The first scraper 55 and the second scraper 56 are arranged at both ends of the first stirring blade 53, which can scrape off the materials that have remained in the kettle body 1 for a long time and are difficult to clean. The first cleaning brush 51 and the second cleaning brush 52 are arranged at both ends of the second stirring blade 54, which can separate the materials adhering to the inner side wall and bottom of the kettle body 1 during the reaction, thereby avoiding waste of materials.

[0030] Preferably, the top end of the feed port 4 is connected to the feed pipe 9 through a connecting screw sleeve 8, and a hydrodynamic proportional pump 10 is provided at the other end of the feed pipe 9. The hydrodynamic proportional pump 10 is connected to the first storage tank 14, the first storage tank 15 and the third storage tank 16 through the first pipeline 11, the second pipeline 12 and the third pipeline 13 respectively. The first pipeline 11, the second pipeline 12 and the third pipeline 13 are all provided with a power pump 17, and the first storage tank 14, the first storage tank 15 and the third storage tank 16 are respectively filled with pure water, VCM and emulsifier.

[0031] Preferably, the outer wall of the kettle body 1 is provided with a jacket 6, into which water is introduced to adjust the temperature inside the kettle body 1 to ensure the smooth progress of the reaction, the upper part of the jacket 6 is provided with a water inlet 18, which is used to connect the water inlet pipe to transport water into the jacket 6, and the lower part of the jacket 6 is provided with a water outlet 19, which is used to connect the water outlet pipe to discharge the water in the jacket 6, and the other ends of the water inlet 18 and the water outlet 19 are respectively provided with a first cover 20.

[0032] Preferably, a temperature indicator 7 is provided on the left side of the top of the kettle cover 2 for real-time detection of the temperature inside the kettle body 1 to facilitate timely adjustment.

[0033] Preferably, a plurality of support blocks 22 are provided at the bottom of the kettle body 1, shock-absorbing springs 23 are provided at the bottom of the support blocks 22, support columns 24 are provided at the other ends of the shock-absorbing springs 23, the bottoms of the support columns 24 are connected by support plates 25, and rubber pads are provided at the bottom of the support plates 25, which can provide buffering and shock-absorbing effects on the kettle body 1 when the stirring and cleaning mechanism 5 is in operation.

[0034] Preferably, a second sealing cover 26 is provided at the bottom of the discharge port 3 .

[0035] Preferably, a plurality of sight glasses 27 are provided on the outer wall of the kettle body 1 above the jacket 6 for observing the reaction conditions in the kettle body 1 .

[0036] The working principle of the utility model is as follows: after the water-powered proportional pump 10 is turned on to add the materials in the first storage box 14, the first storage box 15 and the third storage box 16 into the interior of the kettle body 1 according to the set ratio, the motor 28 is turned on to drive the first stirring blade 53 and the second stirring blade 54 to rotate to ensure the smooth progress of the polymerization reaction, and at the same time drive the first scraper 55, the second scraper 56, the first cleaning brush 51 and the second cleaning brush 52 to move. The first scraper 55 and the second scraper 56 can scrape off the materials that have been left for a long time and are difficult to clean. The first cleaning brush 51 and the second cleaning brush 52 can The reaction process can separate the materials adhering to the inner side wall and the bottom of the kettle body 1, avoid the materials adhering to the inner side wall and the bottom of the kettle body 1, and cause the waste of materials, thereby reducing the production cost. After the reaction is completed, the second cover 26 is opened. After the reacted materials all flow out from the discharge port 3, the second cover 26 is closed, and then water or cleaning liquid is introduced into the kettle body 1 through the liquid inlet 21. The inside of the kettle body 1 is fully cleaned by the rotation of the first scraper 55, the second scraper 56, the first cleaning brush 51 and the second cleaning brush 52. After the cleaning is completed, the second cover 26 is opened to discharge the sewage from the inside of the kettle body 1.

[0037] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A reaction kettle for polyvinyl chloride paste resin, characterized in that: include: A kettle body, wherein a kettle cover is arranged on the top of the kettle body, a discharge port is arranged on the bottom of the kettle body, a feed port is arranged on the right side of the top of the kettle cover, a liquid inlet is arranged on the left side of the top of the kettle cover, a motor is arranged at the center of the top of the kettle cover, and an output shaft of the motor passes through the kettle cover and is connected to a stirring and cleaning mechanism in the kettle body through a coupling; The stirring and cleaning mechanism includes a stirring shaft, a first stirring blade, a second stirring blade, a first scraper, a second scraper, a first cleaning brush, and a second cleaning brush. The upper end of the stirring shaft is connected to the output shaft of the motor through a coupling. A plurality of groups of the first stirring blades and the second stirring blades are arranged on the stirring shaft. The first stirring blades and the second stirring blades are arranged vertically staggered and evenly spaced up and down. The first scraper and the second scraper are arranged at both ends of the first stirring blade, and the first cleaning brush and the second cleaning brush are arranged at both ends of the second stirring blade.

2. A reaction kettle for polyvinyl chloride paste resin according to claim 1, characterized in that: The top end of the feed port is connected to the feed pipe through a connecting screw sleeve, and a hydrodynamic proportional pump is provided at the other end of the feed pipe. The hydrodynamic proportional pump is connected to the first storage tank, the first storage tank and the third storage tank through the first pipeline, the second pipeline and the third pipeline respectively. The first pipeline, the second pipeline and the third pipeline are all provided with power pumps, and the first storage tank, the first storage tank and the third storage tank are respectively filled with pure water, VCM and emulsifier.

3. A reaction kettle for polyvinyl chloride paste resin according to claim 1, characterized in that: The outer wall of the kettle body is provided with a jacket, the upper part of the jacket is provided with a water inlet, the lower part of the jacket is provided with a water outlet, and the other ends of the water inlet and the water outlet are respectively provided with a first sealing cover.

4. A reaction kettle for polyvinyl chloride paste resin according to claim 1, characterized in that: A temperature indicator is arranged on the left side of the top of the kettle cover.

5. A reaction kettle for polyvinyl chloride paste resin according to claim 1, characterized in that: A plurality of support blocks are arranged at the bottom of the kettle body, shock absorbing springs are arranged at the bottom of the support blocks, support columns are arranged at the other ends of the shock absorbing springs, the bottoms of the support columns are connected through support plates, and rubber pads are arranged at the bottom of the support plates.

6. A reaction kettle for polyvinyl chloride paste resin according to claim 1, characterized in that: A second sealing cover is arranged at the bottom of the discharge port.

7. A reaction kettle for polyvinyl chloride paste resin according to claim 3, characterized in that: A plurality of sight glasses are arranged on the outer wall of the kettle body above the jacket.

Images