A multi-stage treatment device for alkali-reduced microfiber production wastewater

Abstract

The invention discloses a multi-stage treatment device for waste water produced by alkali-reduction microfiber, which belongs to the technical field of waste water treatment and comprises a treatment box. The top of the treatment box is provided with an opening, and a floating filter mechanism is fixed inside the opening. A hopper is also installed on the top of the hopper, and a discharge pipe is connected to the bottom of the hopper, and the discharge pipe extends to the inside of the treatment box. Impurities on the net can reduce the workload and cleaning times of the active filter, and the same amount of chemicals can be automatically added according to the constant amount of sewage, and the sewage is in a static state in the treatment tank, which can maximize the flocculation effect of the chemicals and the flocculation effect Good, it is convenient to carry out continuous sewage treatment operation, can realize the fully automatic operation of sewage, has high sewage treatment efficiency, high economic benefits, and the overall device is integrated, occupies a small area, and is convenient for manufacturing and transportation.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a multi-stage treatment device for alkali-reduced superfiber production wastewater. Background technique [0002] In the production of synthetic leather, the alkali reduction technology is a unique process in the production of microfiber leather. The bicomponent sea-island fibers formed by the spinning process can remove the continuous phase of the sea-island fibers through the alkali reduction technology, and can obtain ultra-fine particles composed of dispersed phases. Fiber, fiber ultrafineness and mold release are the keys to the simulation and softening of synthetic leather. Alkali reduction method is a commonly used chemical peeling method for island structure of composite microfibers. When using alkali reduction method to produce microfibers A large amount of waste water will be produced. At present, there are relevant studies in China for the trea...

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Problems solved by technology

[0003] At present, a large amount of sewage will be generated in the process of microfiber production. In order to ensure that the sewage can meet the requirements of environmental protection discharge, it is necessary to carry out multi-stage treatment of sewage. The existing patent No. CN113426365B discloses a rubber regeneration wastewater treatment device, the advantage of this patent is that when the rubber regeneration wastewater treatment device is used, the quantitative feeding device can put different amounts of reactants into the mixing tank according to the flow rate of the wastewater in the sewage, so as to ensure that the amount of added reactants can be Adapt to the amount of waste water, no need to manually measure every time, easy to use, and then start the mixing device to mix the waste water and reactants, after the mixing is completed, start the filter device to filter and discharge the mixed waste water However, when the sewage in this patent is filtered, the filter screen needs to be cleaned frequently, the workload is heavy, and the number of cleanings is frequent, and when the sewage is added to the sewage flocculation sedimentation operation, the sewage is dynamically flowing, which makes it difficult to produce flocculants Flocculation, the flocculation effect is poor, and the dose of medicine is proportional to the amount of sewage, it is difficult to automatically add the same amount of medicine according to the constant sewage volume, it is easy to add more or less medicine, and the fully automatic operation of sewage cannot be realized , the efficiency of sewage treatment is low, and the economic benefit is not high

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