PVB production process based on plate heat exchanger cooling
A technology of plate heat exchanger and production process, which is applied in the direction of indirect heat exchanger, heat exchanger type, lighting and heating equipment, etc., can solve the problems of long process cycle, unable to improve production cycle and production efficiency, and achieve quality improvement , Shorten the production cycle and reduce the cost
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Embodiment 1
[0030] The invention provides a technical solution: a PVB production process based on plate heat exchanger cooling, which specifically includes the following steps:
[0031] S1. Material preparation, pure water, butyraldehyde, plate heat exchanger, pre-reactor, centrifugal dryer, storage tank, catalyst, trimmer and winder;
[0032] S2, product PVA, at first the polyvinyl alcohol that PVB resin flashiness produces is added the butyraldehyde of emulsification, makes catalyst modification PVA with a small amount of hydrochloric acid, obtains PVB resin and by-product water, makes PVB resin precipitate in water;
[0033] S3, the plate heat exchanger is installed, and then a layer of hollow pipes is put on the cold and hot pipes on the surface of the plate heat exchanger, and an air pump is arranged at the pipes, and a filter screen is arranged at the outlet of the hollow pipes;
[0034] S4. Heating and dissolving. In the process of dissolving, pure water is used as a solvent, which...
Embodiment 2
[0047] The invention provides a technical solution: a PVB production process based on plate heat exchanger cooling, which specifically includes the following steps:
[0048] S1. Material preparation, pure water, butyraldehyde, plate heat exchanger, pre-reactor, centrifugal dryer, storage tank, catalyst, trimmer and winder;
[0049] S2, product PVA, at first the polyvinyl alcohol that PVB resin flashiness produces is added the butyraldehyde of emulsification, makes catalyst modification PVA with a small amount of hydrochloric acid, obtains PVB resin and by-product water, makes PVB resin precipitate in water;
[0050] S3, the plate heat exchanger is installed, and then a layer of hollow pipes is put on the cold and hot pipes on the surface of the plate heat exchanger, and an air pump is arranged at the pipes, and a filter screen is arranged at the outlet of the hollow pipes;
[0051] S4. Heating and dissolving. In the process of dissolving, pure water is used as a solvent, which...
Embodiment 3
[0064] The invention provides a technical solution: a PVB production process based on plate heat exchanger cooling, which specifically includes the following steps:
[0065] S1. Material preparation, pure water, butyraldehyde, plate heat exchanger, pre-reactor, centrifugal dryer, storage tank, catalyst, trimmer and winder;
[0066] S2, product PVA, at first the polyvinyl alcohol that PVB resin flashiness produces is added the butyraldehyde of emulsification, makes catalyst modification PVA with a small amount of hydrochloric acid, obtains PVB resin and by-product water, makes PVB resin precipitate in water;
[0067] S3, the plate heat exchanger is installed, and then a layer of hollow pipes is put on the cold and hot pipes on the surface of the plate heat exchanger, and an air pump is arranged at the pipes, and a filter screen is arranged at the outlet of the hollow pipes;
[0068] S4. Heating and dissolving. In the process of dissolving, pure water is used as a solvent, which...
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Abstract
Description
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Application Information
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