Steel casting and smelting wastewater recycling treatment method
A waste water recovery and waste water treatment technology, applied in the field of iron and steel casting, can solve the problems of unprocessable waste water, large rust agglomeration volume, blockage, etc., achieve rapid and thorough oil-water separation, improve operational effectiveness, and clear effects
Active Publication Date: 2021-11-23
滦县利丰铸造有限公司
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Problems solved by technology
[0005]
Aiming at the problems in the prior art, the purpose of the present invention is to provide a recycling and recycling treatment method for iron and steel foundry and smelting wastewater, so as to solve the deficiencies in the above-mentioned patents: 1. The volume of rust agglomerates used in casting is large. During the recycling of iron and steel casting and smelting wastewater, the drainage holes are often blocked due to the large volume of rust agglomeration, so it is easy to cause blockage of the iron and steel casting and smelting wastewater during recycling, resulting in a state where the wastewater cannot be treated
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[0033] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with specific drawings. It should be noted that, in the case of no conflict, the embodiments and Features in the embodiments can be combined with each other.
[0034] see Figure 1-6 , which is a recycling and recycling treatment method for iron and steel casting and smelting wastewater,
[0035] A method for reclaiming and recycling waste water from iron and steel casting and smelting, comprising the following steps:
[0036] S1. Wastewater recycling: pour the iron and steel casting and smelting wastewater into the wastewater treatment cylinder 2 for recycling, and store the iron and steel casting and smelting wastewater through the liquid storage area 3 at the top of the wastewater treatment cylinder 2;
[0037] S2. Grading and screening for slag removal: in step S1, whe...
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The invention provides a steel casting and smelting wastewater recycling treatment method, and relates to the technical field of steel casting. The method comprises the following steps: S1, wastewater recycling: pouring steel casting and smelting wastewater into a wastewater treatment barrel for recycling, and storing the steel casting and smelting wastewater through a liquid storage area at the top end of the wastewater treatment barrel; and S2, graded screening and deslagging: when the steel casting and smelting wastewater is poured into a wastewater treatment barrel in the step S1, carrying out graded deslagging on the steel casting and smelting wastewater poured into the wastewater treatment barrel through a filter screen frame, and carrying out graded discharge on steel casting waste residues with different sizes. According to the invention, a first-stage filter screen, a second-stage filter screen and a third-stage filter screen are respectively used for classifying and recycling iron rust cakes with different sizes, so that the later manual selection is facilitated, the selection operation effectiveness is improved, the iron rust cakes can be more thoroughly separated from the wastewater treatment barrel, and the iron rust cakes can be quickly separated from the steel casting and smelting wastewater.
Description
technical field [0001] The invention relates to the technical field of iron and steel casting, in particular to a method for recycling and reusing waste water from iron and steel casting and smelting. Background technique [0002] Most of the wastewater produced by the foundry is the cooling wastewater of the iron furnace, which contains sediment, rust agglomerates and other substances. After searching the patent publication number CN108996748A, a new type of wastewater treatment device for the foundry industry, including the treatment device body, the treatment device One end of the body is provided with a filter tank, and a water inlet is provided above one side of the filter tank, and the other side of the filter tank is connected to a flocculation sedimentation tank through a pipeline, and a filter bag is installed inside the filter tank, and one end of the flocculation sedimentation tank Adsorption tanks are connected through pipelines; patent publication number CN10899...
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IPC IPC(8): C02F9/02C02F103/16
CPCC02F1/001C02F1/40C02F2103/16C02F2301/08
Inventor 孔明
Owner 滦县利丰铸造有限公司