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Waste slag treatment method for petroleum scraps burning desulfurization

A treatment method and technology for oil residues, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of small usage, waste of resources, occupying space, etc., to achieve strong adhesion, not easy to crack, Lightweight effect

Inactive Publication Date: 2008-05-21
滕少波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fly ash is generally used for sea reclamation or ditch filling, and the bottom slag can be used as an additive in the production of cement, but the amount used is very small. Generally, only about 5% of the weight of 1 ton of cement production materials is combustion desulfurization. The bottom slag in the waste residue, and the formula needs to be modified during the actual mixing process. Therefore, the treatment and application of the above two industrial waste residues have not been fundamentally resolved, causing them to occupy a lot of space and pollute the environment. At the same time It also causes a waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] When the oil residue is burned, only the oil residue can be burned, or carbon can be added to it and then burned, and with the different sulfur content in the oil, the amount of calcium oxide CaO added to it during desulfurization will change accordingly, so every The contents of each component in the fly ash and bottom slag formed at the second time are different. Assuming that no carbon is added when the oil residue is burned, the theoretical value of the content of each component in the burned fly ash can be known by calculation:

[0020] serial number

name and symbol

Content (weight ratio)

1

Calcium Carbonate CaCO 3

4.78％

2

calcium oxide CaO

27.62％

3

Magnesium Carbonate MgCO 3

0

4

Magnesium Oxide MgO

2.72％

5

Calcium sulfate CaSO 4

58.27％

6

inert substance

0.64％

7

burning ash

0.29％

8

unburned embers

5.69％

[0021] The m...

Embodiment 2

[0029] Add gypsum accounting for 20% of the mass of the main raw material to the main raw material, stir the main raw material and gypsum continuously to make it evenly mixed, then pour a certain amount of additive, namely dilute sulfuric acid solution, and continue stirring for 2 to 10 minutes to make the main raw material and additive Fully react, after stirring, pour the formed wet material into the mold of the brick making machine. Since the added gypsum acts as a coagulation accelerator, the initial setting time of the material is 15 minutes. Before the initial setting of the material, pass the moisture Vibration and molding of the materials make blocks of various shapes, after the initial setting of the blocks, they are demoulded and dried naturally to form gypsum blocks.

[0030] The gypsum block is characterized by a short initial setting time and high strength. The more gypsum added to the main raw material, the shorter the initial setting time, so the amount of gypsum ...

Embodiment 3

[0033] Add sand to the main raw material, wherein the quality of the sand is twice that of the main raw material. Stir the main raw material and sand continuously to make it evenly mixed, then pour a certain amount of additive, namely dilute sulfuric acid solution, and continue stirring to make the main raw material and sand The additives are fully reacted, and the wet material formed after stirring can be used as plastering mortar for the wall. The plastering mortar has high strength, similar to cement, and is not easy to crack, and its adhesion ability is stronger than cement.

[0034] Others are the same as embodiment 1.

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PUM

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Abstract

The invention relates to a method for manufacturing building materials, in particular to a method for treating industrial waste residues produced after burning and desulfurizing oil residues produced in large oil refineries. It solves the problem that the industrial waste residue formed after oil residue combustion and desulfurization cannot be fundamentally treated and applied for a long time, and proposes a waste residue treatment method after petroleum oil residue combustion and desulfurization. The main raw material of the present invention is waste residue after desulfurization of oil residue, including fly ash and bottom slag, and an additive, i.e. dilute sulfuric acid solution, is added to the main raw material. Sure. This method has fundamentally applied and treated the industrial waste generated by large oil refineries, and at the same time improved the comprehensive utilization rate of waste, reduced the use of natural resources, realized circular economy, energy saving and emission reduction, and has a positive effect on environmental protection. Significance, while reducing the production cost of bricks or blocks.

Description

technical field [0001] The invention relates to a manufacturing method of building materials, in particular to a method for making bricks or building blocks from industrial waste residues produced after combustion and desulfurization of oil residues produced in large oil refineries. Background technique [0002] With the rapid development of the petroleum industry, my country has successively built many large refineries. In the refinery, the petroleum is extracted through multiple processing steps to produce commercial oil, and finally the asphalt is extracted to form oil residue, and the oil residue is formed into industrial waste residue after combustion and desulfurization. The industrial waste slag after combustion and desulfurization is divided into two types: one is separated from the flue gas by the cyclone separator, and generally becomes "fly ash" with finer particles and relatively higher density; the other is from the calcination furnace It comes from precipitati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/06
CPCC04B18/10Y02W30/91
Inventor 滕少波
Owner 滕少波
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