Extrusion Tool etching unit with regeneration of waste alkaline solution|die etching process|die maintenance|alkaline solution regeneration

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Extrusion tool etching unit with regeneration of waste alkaline solution

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Extrusion tool etching unit with regeneration of waste alkaline solution
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Product Abstract:

After aluminum profile extrusion, the extrusion tools are unloaded and the extrusion butt are hot sheared, the extrusion tool are sent to the die etching system for etching, the waste alkali mist is collected and purified by water elution in the tower and the waste caustic soda liquid will be sent to the reaction tower of recycling system to recovery and re-use to achieve zero emission, and the aluminum hydroxide waste residue can be sold as a byproduct to increase the income of an enterprise.

Product Description: Extrusion tool etching unit with regeneration of waste alkaline solution

After aluminum profile extrusion, the extrusion tools are unloaded and the extrusion butt are hot sheared, the extusion tools are sent to the molds etching system for cleaning, the waste alkali mist is collected and purified by water elution in the tower and the waste caustic soda liquid will be sent to the reaction tower of recycling system to recovery and re-use to achieve zero emission, and the aluminum hydroxide waste residue can be sold as a byproduct to increase the income of an enterprise.

1.Working principle of regeneration of waste alkaline solution

By utilize that amphoteric characteristics of aluminum hydroxide, the supersaturate sodium metaaluminate is decomposed into upper liquid sodium hydroxide (which is returned to the die etching tank for continuous use) and lower aluminum hydroxide (which is separate by a centrifuge and used as a saleable byproduct) under suitable conditions, the system is in dynamic balance, the recovery amount of sodium hydroxide can reach more than 50%, and the consumption of sodium hydroxide is reduced.

2.Analysis of system characteristics of extrusion tool etching unit with regeneration of waste alkaline solution

2.1That zero discharge of waste caustic soda is realize, and no additional waste water and waste residue are generate;

2.11 Environmentally friendly:

The traditional treatment method is to discharge the waste alkali liquor from the cleaning tank into the wastewater treatment system, which often produces a large amount of waste residue and causes a burden on the environment. This recycling system can achieve zero emission and greatly reduce the negative impact on the environment.

2.12 Avoiding the generation and treatment process of the waste residue, and reducing the waste residue treatment cost and the potential environmental pollution risk.

2.13 Reduce the cost of sewage treatment and reduce the production cost of an enterprise.

2.2 Resource recycling:

2.21 The active free alkali can be recovered from the die etching waste alkali liquor, and the secondary utilization of the alkali is realized. This not only reduces the purchase of new alkali, but also reduces the production cost.

2.22 The separated aluminum hydroxide crystal by-product can be sold, further increasing the economic benefit while reducing the loss cost of the valuable aluminum metal.

3. The use amount of alkali is reduced;

2.3 Multipurpose applications:

The Alkaline recovered by the regenerative system can continue to be applied to the die etching, which ensures the continuous supply of alkaline in the production process and reduces the dependence on new alkaline. But also can be applied to an aluminum alkali etching tank and acid water neutralization of the anodizing line, thereby expanding the application range of the recovered alkali liquor and improving the resource utilization rate.

2.4 Cost savings:

Reducing the consumption of flake caustic soda directly reduces the purchase cost of raw materials. With the continuous recovery and reuse of alkali liquor, the cost saving effect is remarkable in the long run.

3.The operation cost of extrusion tool etching unit with regeneration of waste alkaline solution is low.

3.1 Fewer operational failures:

The system has stable operation and low failure rate, which reduces the downtime and maintenance cost caused by equipment failure. This is essential to ensure the continuity and stability of production.

3.2 Low maintenance costs:

Because there are few operational failures, the corresponding maintenance costs are also low. The reliability of equipment reduces the investment of manpower, material resources and financial resources required for maintenance.

3.3 Fewer managers:

Only one worker/day is needed for management, which greatly reduces the labor cost. Compared with other equipment requiring a large number of managers, the recycling device has obvious advantages in terms of human resources.

3.4 No high cost consumables:

There are no other high-cost consumables, such as diaphragms, membrane tubes, etc., during later maintenance. This avoids the additional expense of replacing these consumables and reduces maintenance costs.

4.No need to add other chemicals of extrusion tool etching unit with regeneration of waste alkaline solution

4.1Operating principle Environmental protection:

The waste caustic soda recycling system uses Al + 3 to generate aluminum hydroxide crystals through water decomposition, so as to achieve the effect of removing Al + 3. There is no need to add other chemicals to react in the whole process, which avoids the possible environmental pollution and cost increase caused by the introduction of other chemicals.

4.2 Streamline Operations:

No additional chemicals are added, making the process simpler and reducing operational complexity and the risk of potential errors. At the same time, it also reduces the technical requirements for operators.

5. The operation is simple, the maintenance rate is low, and the PLC automatically control the operation.

5.1PLC automatic control:

PLC is used to automatically control the continuous operation, which improves the operation efficiency and stability of the device. Automatic control reduces the error of human operation and ensures the accuracy and reliability of the recovery process.

5.2Easy to operate:

The operation is simple and easy to understand, and only one ordinary worker is needed to operate. This reduces the requirements for professional skills of operators and facilitates the arrangement of human resources in enterprises

Low maintenance:

Low maintenance reduces the time and cost required for equipment maintenance. Ordinary workers take half a day to discharge slag, which shows that the maintenance work is relatively easy and will not have a greater impact on production.

6.Equipment composition of extrusion tool etching unit with regeneration of waste alkaline solution

6.1Centrifuge

A centrifugal separator is a machine that uses centrifugal action to separate groups of liquid and solid particles or a mixture of liquid and liquid. The main material of the equipment is SUS304. The main function in this system is to extract the by-product aluminum hydroxide produced in the crystallization reaction tower. After the solid-liquid separated by the centrifuge, it is collected in the big bag.

6.2Crystalliztion reaction tower

The height of crystallization reaction tower is about 6 meters, with built-in chromatography reaction single plate, solid-liquid separator and stirrer. The main function of the equipment is to hydrolyze the waste caustic soda pumped into the tower to produce reusable caustic soda and by-product aluminum hydroxide.

6.3Recycled Alkali storage tank

This equipment is mainly used to collect the clarified liquid caustic soda produced after being processed by the crystallization reaction tower, so as to facilitate the reuse in the workshop.

6.4Aluminum extrusion dies etching tank

The die etching tank is mainly used for alkali corrosion cleaning of the dies. The equipment has a built-in cleaning box, alkali inlet and outlet, a temperature monitoring probe, a waste alkali mist collection port, an electromagnetic heater, a stainless steel tank cover, and a stainless steel plate for the outer seal. When the dies are cleaned and reacted in the alkali tank, it can realize the whole reaction temperature monitoring and improve the dies cleaning efficiency.

6.5Waste alkali mist purification treatment system

The waste alkali mist purification treatment system includes a purification spray tower, negative pressure fan, spray pump and pipeline. The main function is to collect the waste alkali mist generated during the dies cleaning, and then elute and purify it with water in the tower to achieve standard and harmless discharge.

7.This equipment is belong to special design project, we can make the proposal according to your information as follow:

7.1Basic of producition plant: The size of die etching workshop

7.2Quantity of aluminum extrusion presses

7.3Daily Dies cleaning information

≦200mm 200-500mm 500-800mm ≧800mm (diameter)

7.4 How much caustic soda do you use per day and total amount of one month?

liquid or powder (KG)

7.4How long does it take at present to clean these tools by pickling? (hours)

7.5What is Max. Power output at the die etching plant? KW

7.6Is there any natural gas connection port or steam port at the dies cleaning plant

7.7Has your company already had waste gas treatment system at die etching plant?

7.8Does your company have the anodizing line or electrophoresis line?

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