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Environment friendly depilation method and lime alkali liquor recovery device

An environmentally friendly, ash-alkali technology, applied in the field of hair removal process, can solve the problems of wasting raw materials and polluting the environment, and achieve the effects of reducing environmental pollution, reducing sulfide emissions, and reducing costs

Inactive Publication Date: 2012-09-05
海宁市富升裘革有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the ash wrapping process in the tanning process, the ash lye prepared by soda sulfide is usually used for depilation, which introduces a large amount of sulfide ions, and the general depilatory devices use flat ash wrapping boards. The excess sulfur ions and sulfides left after the gray brush smears the gray lye on the skin can only be discharged with the waste water, which not only seriously pollutes the environment, but also wastes raw materials

Method used

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  • Environment friendly depilation method and lime alkali liquor recovery device
  • Environment friendly depilation method and lime alkali liquor recovery device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: As shown in the accompanying drawings, a kind of ash lye recovery device comprises a box-type ash-packing operation table 1, a grid-like ash-packing board 2, and a high Concentrated gray lye outlet 3 and low-concentration ash lye outlet 4, the bottom plate 5 of the suitcase gray type operation table 1 has an inclined angle to the two outlets 3 and 4, that is, it is set as a slope, so that the ash lye can flow smoothly from the outlet Outflow in 3,4, be respectively provided with corresponding high-concentration ash lye recovery tank 6 and low-concentration ash lye recovery tank 7 directly below outlet 3,4, two recovery tanks 6,7 pass pipeline 8 and high The concentration gray lye recovery tank 9 is connected with the low concentration ash lye recovery tank 10, and a lifting pump and an agitator are arranged at the bottom of the two recovery tanks 9 and 10, and the agitator keeps the ash lye in a flowing and uniform state. , without precipitation. The two ...

Embodiment 2

[0017] Embodiment 2: use high-concentration ash lye to coat ash, and as shown in the accompanying drawings, spread the leather blank on the grid-like ash-coating board 2, and apply the high-concentration ash lye evenly on the skin with a dust-coating brush. On the billet, after smearing, the redundant high-concentration ash lye flows down along the grid-like ash-coating plate 2, and at this time, the high-concentration ash lye outlet 3 is opened, and the low-concentration ash lye outlet 4 is closed, and the high-concentration ash lye The lye promptly flows out from the high-concentration ash lye outlet 3 along the inclined bottom plate 5, connects to the high-concentration ash lye recovery tank 6, then flows into the high-concentration ash lye recovery tank 9 through the pipeline 8, and then lifts the lye The high-concentration ash lye in the recovery pool 9 is lifted to the high-concentration ash lye and reused in the batching tank 11 for concentration testing, and the corresp...

Embodiment 3

[0018] Embodiment 3: use low-concentration ash lye to coat ash, and as shown in the accompanying drawings, spread the leather base on the grid-like ash-coating board 2, and evenly smear the low-concentration ash lye on the skin with a dust-coating brush. On the billet, after smearing, the excess low-concentration ash lye flows down along the grid-shaped ash-coating board 2, and at this time, the low-concentration ash lye outlet 4 is opened, and the high-concentration ash lye outlet 3 is closed, and the low-concentration ash lye The lye promptly flows out from the low-concentration ash lye outlet 4 along the inclined bottom plate 5, connects to the low-concentration ash lye recovery tank 7, then flows into the low-concentration ash lye recovery tank 10 through the pipeline 8, and then lifts the lye The low-concentration gray lye in the recovery pool 10 is promoted to the low-concentration ash lye and reused in the batching tank 12 for concentration testing, and the corresponding...

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Abstract

The invention discloses an environment-friendly unhairing method and an ash lye reclaiming device. The environment-friendly unhairing method comprises the steps of ash coating, stacking, unhairing and ash immersion, wherein the ash coating step comprises the following substeps: (1) applying the ash lye; (2) reclaiming the ash lye; and (3) treating the ash lye. The ash lye reclaiming method for implementing the environment-friendly unhairing method comprises an ash coating plate, wherein the ash coating plate is latticed and arranged on the top of a box type ash coating operating platform of which one side is provided with at least one outlet; a corresponding reclaiming tank is arranged under the outlet; and an inclination angle is formed in the direction from a bottom plate of the box type ash coating operating platform to the outlet. The invention not only reduces the environmental pollution of sulfide but also saves raw materials and reduces the cost.

Description

technical field [0001] The invention relates to a method and a device for a depilation process in a tanning process, in particular to an environment-friendly depilation method and an ash lye recovery device. Background technique [0002] At present, with the rapid development of the tanning industry, the discharge of tanning sewage has become an increasingly serious pollution problem, especially the discharge of toxic and harmful substances such as sulfide. In the ash wrapping process in the tanning process, the ash lye prepared by soda sulfide is usually used for depilation, which introduces a large amount of sulfide ions, and the general depilatory devices use flat ash wrapping boards. The redundant sulfide ions and sulfide formed after the gray lye is applied to the skin by the gray brush can only be discharged with the waste water, which not only seriously pollutes the environment, but also wastes raw materials. Contents of the invention [0003] The technical problem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C1/06C02F1/00
Inventor 张建新王德龙夏连新
Owner 海宁市富升裘革有限公司