Method and apparatus arrangement for mixing silicone composition
AssigneeOy Pro-Hydro Ab
InventorEsa Kuismanen
Life of this patent
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Abstract
In the manufacturing method and manufacturing arrangement according to the invention for a silicone composition the mixer mixing the different subcomponents of the silicone composition are removed for the duration of downtime and cooled to a temperature, in which the chemical reaction between the different subcomponents of the silicone composition stops. In the manufacturing method of the invention the mixer is reconnected to the manufacturing apparatus arrangement after downtime without cleaning it from the silicone composition subcomponents remaining in the mixer.
Claims14
A method for manufacturing a silicone composition, in which method
- a pumping of different silicone composition subcomponents is started;
- the silicone composition subcomponents are pumped with component-specific pumps to a mixer of silicone composition subcomponents;
- a silicone composition is mixed from the subcomponents with the mixer;
- the process for manufacturing silicone composition is stopped due to downtime;
- wherein
- the silicone composition mixer is cooled to a temperature, in which a chemical reaction between the different subcomponents of the silicone composition stops;
- the silicone composition mixer is kept at the cooling temperature for a duration of the downtime;
- and that
- the manufacture of the silicone composition is continued after the downtime without cleaning the mixer.
A manufacturing arrangement for a silicone composition, which comprises:
- material containers for silicone composition subcomponents;
- a separate pump for each silicone composition subcomponent, the pumps being configured to pump the subcomponents of the silicone composition to be manufactured to a mixer through output pipes, wherein the manufacturing arrangement for the silicone composition further comprises a cooling element configured to be closed around the mixer and an output pipe during a production break, the cooling element being configured to:
- cool the mixer for a duration of a downtime to a temperature at least below +3° C., in which temperature a chemical reaction between different subcomponents of the silicone composition in the mixer stops;
- and
- keep the mixer filled with the subcomponents at the cooling temperature for duration of the downtime;
- and
- heat the mixer after the downtime to a temperature of the manufacture of the silicone composition without cleaning the mixer,
- and wherein the manufacturing arrangement is configured to start pumping of subcomponents of the silicone composition to the mixer when the manufacturing temperature of the silicone composition has been reached for transferring heated silicone composition from the uncleaned mixer to an application.
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Dependencies are inferred from the claim text.