US 2013/0256238 A1Published application

Method and Apparatus for Dissolving Sodium Carbonate in Water

AssigneeRDP Technologies, Inc.

InventorsRichard W. Christy, Michael Quici

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Abstract

Process and apparatus is provided for making a solution of sodium carbonate (soda ash) and water by which the soda ash is delivered in dry, particulate form to a silo, while air is being exhausted from the silo, dehumidifying air from the silo and discontinuing the dehumidifying of air while soda ash is being delivered to the silo, delumping soda ash in the silo, and then delivering water to a mixing vessel and transferring particulate soda ash to the treating vessel, in which it is mixed and the resulting solution is then discharged. The solution can be delivered to a storage tank or vessel and then to either a single or multiple outlet dosing station and/or some of the solution can be returned to a storage silo.

Claims25

Dependent claims

A process for dissolving sodium carbonate in water, comprising the steps of:

(a) delivering dry, particulate sodium carbonate into a sodium carbonate storage silo while evacuating sufficient air from the sodium carbonate storage silo to accommodate the amount of sodium carbonate being delivered into the storage silo;
(b) dehumidifying air in the sodium carbonate storage silo that contains sodium carbonate, to keep the particles of sodium carbonate from bonding together, by withdrawing air from the sodium carbonate storage silo, dehumidifying that air and returning dehumidified air to the sodium carbonate storage silo;
(c) while the sodium carbonate storage silo is having sodium carbonate delivered thereto in accordance with clause (a), discontinuing the dehumidifying of air in accordance with clause (b) above;
(d) delumping solidified lumps of sodium carbonate in the sodium carbonate silo;
(e) delivering water to be treated to a mixing vessel;
(f) transferring dry, particulate sodium carbonate to the mixing vessel from the sodium carbonate silo;
(g) mixing sodium carbonate and water in the mixing vessel until a solution is obtained of sodium carbonate and water;
and
(h) discharging the solution from the mixing vessel.

6 more elements

Apparatus for dissolving sodium carbonate in water, comprising:

(a) means for delivering particulate sodium carbonate into a sodium carbonate storage silo, including means for evacuating sufficient air from the sodium carbonate storage silo to accommodate the amount of sodium carbonate being delivered into the storage silo;
(b) means for dehumidifying air in the sodium carbonate storage silo that contains sodium carbonate, to keep the particles of sodium carbonate from bonding together, including means for withdrawing air from the sodium carbonate storage silo and dehumidifying that air and returning dehumidified air to the sodium carbonate storage silo;
(c) means for discontinuing the dehumidifying of air in accordance with clause (b) above while the sodium carbonate storage silo is having sodium carbonate delivered thereto in accordance with clause (a);
(d) means for delumping solidified lumps of sodium carbonate in the sodium carbonate silo;
(e) a mixing vessel and delivering means for delivering water to be treated to the mixing vessel;
(f) means for transferring particulate sodium carbonate to the treating vessel from the sodium carbonate silo;
(g) mixing means for mixing sodium carbonate and water in the mixing vessel until a solution is obtained of sodium carbonate and water;
and
(h) means for discharging the solution from the mixing vessel.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/438,036Filed 3 Apr 2012
Published: 3 Oct 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

C02F 1/68
Treatment of water, waste water, or sewage: by addition of specified substances, e.g. trace elements, for ameliorating potable water
C02F 1/687
Devices for dosing the additives: devices for dosing solid compounds
C02F 1/66
Treatment of water, waste water, or sewage: by neutralisation; pH adjustment
C02F 1/686
Devices for dosing the additives: devices for dosing liquid additives

Family

US 9,315,399 B2Related patent
US 2013/0256238 A1This patent

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