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Degreased alkali liquor recycling system and utilization method

A kind of lye, a first-class technology, applied in the field of degreasing lye recycling system, can solve the problems of cumbersome maintenance, chemical principle, environmental pollution, waste, etc., achieve the effect of simple equipment structure, improve the purity of lye, and reduce production costs

Active Publication Date: 2019-01-18
JIANGSU SUXUN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is discharged directly, it will cause a lot of waste and affect environmental protection production. However, after the surface of the strip is cleaned by lye, there will be more grease or impurities inside, and it cannot be directly recycled.
[0003] In the prior art, the strip steel degreasing production line mainly adopts chemical principles or uses electrolytic lye to recycle lye; however, the chemical principle is likely to cause serious environmental pollution, which does not conform to the green and environmentally friendly production advocated by the state; while electrolytic lye The equipment is complicated, the investment cost is high, and the maintenance is cumbersome, which is not conducive to production

Method used

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  • Degreased alkali liquor recycling system and utilization method

Examples

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Embodiment 1

[0038] see figure 1 , the present embodiment provides a kind of degreasing lye recycling system, comprising: primary buffer tank 10, secondary buffer tank 20, lye storage tank 3 and Hoffman filter 4; wherein secondary buffer tank 20, Hoffman filter The Furman filter 4 is sequentially connected to the rear side of the primary buffer tank 10; the lye storage tank 3 supplies the degreasing product and then enters the primary buffer tank 10, so as to be suitable for the recycling of the degreasing lye.

[0039] Further, the primary buffer tank 10 includes a stepped bottom plate 11 and guard plates 12 around the bottom plate 11, wherein the width of the bottom plate 11 changes from wide to narrow along the flow direction of the lye, and the step structure of the bottom plate flows along the lye. The direction changes from low to high, and the step structure of the bottom plate is used to perform primary buffering of the lye, and the flow velocity of the lye is reduced for the first...

Embodiment 2

[0049]On the basis of Example 1, this Example 2 also provides a method for recycling degreasing lye.

[0050] Specifically, the degreasing lye is stored in the lye storage tank 3 and then enters the degreasing product, and the degreasing product flows through the primary buffer tank 10, the secondary buffer tank 20, and the Hoffman filter 4 to return to the alkali after rinsing. Liquid storage tank 3 is suitable for recycling.

[0051] The recycling method has a good and simple effect of filtering and removing impurities.

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Abstract

The invention discloses a degreased alkali liquor recycling system and a recycling method. The system comprises a primary buffer tank, a secondary buffer tank, an alkali liquor storage tank and a Hoffman filter, wherein the secondary buffer tank and the Hoffman filter are sequentially connected with the rear side of the primary buffer tank; and a degreased product supplied by the alkali liquor magazine slot enters the primary buffer tank after use so as to be suitable for recycling of degreased alkali liquor. According to the system, a flow rate of the alkali liquor is reduced to the maximum extent due to a special structure design of the primary buffer tank and the secondary buffer tank; various impurities contained in the alkali liquor can be settled to the maximum extent; the secondarybuffer tank absorbs grease; the grease and various impurities in the alkali liquor are effectively reduced; the purity of the alkali liquor is improved; the recycling quality of the alkali liquor is ensured; the treatment cost is low; an equipment structure is simple; much alkali liquor is effectively saved; and the system saves energy, reduces emission and lowers production cost.

Description

technical field [0001] The invention relates to the field of recycling degreasing lye, in particular to a degreasing lye recycling system used in a steel strip production line and a utilization method thereof. Background technique [0002] The strip must be degreased before being rolled by a press or electroplated, and lye is a cleaning solution commonly used for degreasing the strip. Due to the production needs of the strip steel degreasing production line, the amount of lye used is relatively large, and the average amount of lye used for cleaning is 30-45 tons per day. If it is discharged directly, it will cause large waste and affect environmental protection production. However, after the surface of the strip is cleaned by lye, there will be more grease or impurities inside, and it cannot be directly recycled. [0003] In the prior art, the strip steel degreasing production line mainly adopts chemical principles or uses electrolytic lye to recycle lye; however, the chemi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02
CPCC02F1/001C02F1/285C02F9/00C02F2001/007
Inventor 李康王松月文志强
Owner JIANGSU SUXUN NEW MATERIAL TECH