METHOD OF WOOL SCOURING USING COUNTER FLOW Russian patent published in 2009 - IPC D01B3/04 

FIELD: textile; paper.

SUBSTANCE: method of wool scouring includes preliminary calculation and setting of the preset value of the counter flow of cleaning solutions during scouring of wool batch taking into account its make-time depending on a technological mode and qualitative characteristics of unsecured wool as well as regulating it by continuous feed with cleaning solutions in each previous washing bath, starting from the last one, against the current of wool with simultaneous draining of spent solution from the first bath to sewerage. Counter flow is actuated when concentration of the cleaning solution of the first bath is achieved up to 50 g/dm³, output flow of the spent solution drained through a flow metre is additionally controlled on the outlet port of the first bath fixing the highest level of liquid flow and estimating the value of counter flow which if necessary to regulate till the preset value is set according to nomogram received from the experimental data of dependences including wool yield and content of mineral mixtures in it corresponding to fixed level of flow, yield of drained solution with further analysis of its correspondence with to the preset value of counter flow, if current flow is diverged from the preset value it's regulated by changing it in accordance with nomogram till the necessary value is set, the highest value of solution flow drained through the flow metre.

EFFECT: method allows increasing efficiency of wool scouring decreasing consumption of water, washing agents, quantity of sewage runoffs as well as excluding additional production costs.

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