Waste liquid collecting system and method for chemical device

Abstract

The invention relates to the technical field of environmental protection, and discloses a waste liquid collecting system and method for a chemical device. The waste liquid collecting system for the chemical device comprises an underground waste liquid storage tank (100) arranged in a geosynclines (1000) sinking into the ground plane and a waste liquid inputting pipeline (200) arranged on the underground waste liquid storage tank; an inert gas inputting pipeline (300) is arranged on the underground waste liquid storage tank and connected with an external inert gas source (400), and a first gasexhausting pipeline (500) used for gas exhausting under the normal working condition is arranged on the underground waste liquid storage tank; and a one-way breather valve (510) is arranged on the first gas exhausting pipeline, and a waste liquid discharging pipeline (600) is arranged on the underground waste liquid storage tank. Different waste liquid is intensively collected in the underground waste liquid storage tank, the gas pressure in the underground waste liquid storage tank is monitored in real time, waste gas and the waste liquid are effectively discharged in time and treated, effective temporary storage, reusing or outward conveying treatment of the waste liquid is guaranteed, the structure is simple and compact, and the production stability is improved.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a waste liquid collection system and a collection method of a chemical plant. Background technique [0002] In order to meet the requirements of environmental protection, the discharge of waste liquid in chemical plants needs to be collected in a closed manner and undergo process recovery or harmless treatment to reduce environmental pollution. However, at present, the discharge of waste liquid in chemical plants has the characteristics of many discharge points, low discharge pressure, and large discharge volume changes. In view of the fact that it is difficult to collect through ordinary vertical airtight pressure vessels, the existing technology has gradually improved the waste liquid collection by adopting the floor tank system. The floor tank system is usually set to in-situ unorganized discharge or ordinary floor tank collection, which can effectively collec...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a chemical plant waste liquid collection system and collection method in order to overcome the environmental pollution caused by unorganized discharge in the prior art. In the waste liquid storage tank, the gas pressure in the buried waste liquid storage tank is monitored in real time, and the waste gas and waste liquid are discharged and treated separately in a timely and effective manner to ensure the effective temporary storage, reuse or delivery of waste liquid. The structure Simple and compact, improve production stability

Images