Heating, mixing and hydrating apparatus and process
OwnerRichard Hefford HOBBS, Martin PRESCOTTinventors
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Abstract
The invention relates to apparatus and a process for mixing a gas/vapour with a process liquid comprising a material and a carrier liquid. The apparatus comprises a passage (10) having an inlet (14) and an outlet (16) for a process liquid comprising the material and an inlet (24) for supersonic steam which is configured such that the angle of impingement of the steam on the carrier liquid can be varied.
Claims28
Apparatus for mixing a material with a gas/vapour, the apparatus comprising:
- i. a passage defined by a wall and having an inlet for a process liquid comprising the material and a carrier liquid and an outlet such that the process liquid flows from the inlet towards the outlet;
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- ii. a means for introducing gas/vapour at supersonic velocity into the passage at a mixing zone;
- characterised in that the means for introducing gas/vapour comprises a rotatable member mounted in the wall;
- wherein the rotatable member is provided with a nozzle with a profile having a convergent-divergent section which opens into the passage and which is in fluid connection with a gas/vapour inlet, such that gas/vapour can be introduced into the passage through the nozzle;
- and wherein the rotatable member is rotatable through an arc of at least 10° about an axis of rotation which is substantially perpendicular to the direction of flow of the process liquid at the inlet, such that the angle between the direction of the flow of gas/vapour and the direction of flow of the process liquid can be varied.
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A process for mixing a material with a gas/vapour, the process comprising:
- i. providing a process liquid comprising the material and a carrier liquid, wherein the process liquid is in the form of at least one of an aqueous suspension, a colloidal solution, a suspension, and an emulsion;
- ii. causing the process liquid to flow through a passage;
- iii. contacting the process liquid with gas/vapour, wherein the gas/vapour flows from a nozzle at supersonic velocity, such that the gas/vapour atomises the process liquid and hydrates the material;
- characterised in that the angle between the direction of the flow of gas/vapour and the direction of flow of the process liquid can be varied by at least 10°.
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Dependencies are inferred from the claim text.