Stone sewage treatment system

Abstract

The invention discloses a stone sewage treatment system, relates to the technical field of stone processing sewage treatment, and adopts the technical scheme that the stone sewage treatment system comprises a centrifugal barrel and an annular outer barrel which are arranged in a sleeving manner, a water inlet pipe is arranged at the water outlet end of a stone processing part, and the output end of the water inlet pipe extends into the centrifugal barrel; a water outlet pipe is arranged on one side of the bottom of the outer barrel, the output end of the water outlet pipe is connected to a stone machining position, and a centrifugal pump is arranged on the water outlet pipe; the bottom of the centrifugal barrel is fixedly connected with a vertical rotating shaft, and the rotating shaft isdriven by a driving motor. The stone sewage treatment system has the beneficial effects that a coagulant and a coagulant aid can be fully mixed with stone sewage by utilizing a centrifugal principle,so that sedimentation of suspended matters in the stone sewage is accelerated; in the centrifugal process, suspended solids settle to the conical barrel bottom of the centrifugal barrel, separated clear water is thrown into a cavity of the outer barrel through the through holes and then returns to a stone machining position through the water outlet pipe to be reutilized, and the clear water in theouter barrel can be used for reversely washing the filter screen attached to the through holes.

Description

technical field [0001] The invention relates to the technical field of stone processing sewage treatment, in particular to a stone sewage treatment system. Background technique [0002] The stone factory will produce a large amount of sewage during the production process. If it is not properly treated, it will not only cause environmental pollution, but also affect actual production. Therefore, stone sewage must be treated before it can be discharged and recycled. The generation of stone sewage is due to the processing of granite or slate through grinding, cutting, polishing, etc. during the stone processing process. Therefore, stone sewage contains a large amount of stone powder, residue and other substances, with high turbidity, and it is difficult to process through natural precipitation. [0003] The sewage generated during stone processing first flows into the sedimentation tank, and coagulants and coagulants are added to the sewage in the sedimentation tank, and unde...

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Problems solved by technology

Therefore, stone sewage contains a large amount of stone powder, residue and other substances, with high turbidity, and it is difficult to process through natural precipitation.

[0003] The sewage generated during stone processing first flows into the sedimentation tank, and coagulants and coagulants are added to the sewage in the sedimentation tank, and under the action of stirring in the regulating tank, the heavy metal ions mercury, lead and chromium in the stone production sewage During the rotation process, the impurities are fully condensed into larger particles, and then precipitated to completely separate the pollutants in the stone production sewage from the water, and the suspended solids in the sewage form stone mud at the bottom of the sedimentation tank; but there are One problem is that the process of full stirring will affect the precipitation, so it can only be left to stand after the stirring is completed, which takes a long time; and steps such as scouring during stone processing require a lot of clean water, and direct discharge not only causes pollution, but also is a kind of damage to water resources. waste

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