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Method for utilizing oily sludge sand to make building material

A mud sand and oil pollution technology, applied in the field of oily sludge sand utilization, can solve the problems of polluting water, soil and air, deteriorating the ecological environment, occupying large land, etc., and achieve huge social and economic benefits and energy saving effects

Inactive Publication Date: 2013-02-13
梁玉海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Oily sludge sand is mainly produced by oil fields in oil exploration and development. Oily sludge sand itself has complex components, containing a large amount of aged crude oil, wax, colloid, suspended solids, salts, acid gases, etc. It takes hundreds of years to completely decompose under natural conditions; the direct discharge of oily sludge will occupy a large amount of land, and the toxic substances contained in it will pollute water, soil and air, and deteriorate the ecological environment; at present, oily sludge sand in oil fields has been listed Included in the "National Hazardous Waste Catalog" as oily waste (HW08 item); according to the current crude oil production (16×108t / a) in my country, nearly one million tons of oily sand is produced every year, causing serious pollution and urgently needed to be solved

Method used

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Examples

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Effect test

Embodiment 1

[0014] Example 1: Add 20% cement, 10% lime, 1% foaming agent and 30% clear water to the separated sand to prepare mortar and pour it into a mold. After standing for 1-10 hours, transfer to autoclaved Heat the kettle to 100-300°C, keep it warm for 1-7 hours, take it out, and then make it into an aerated foam concrete block. The performance of the product is tested according to "GB 11968-2006 Autoclaved Aerated Concrete Block". The density is 600kg / m3, the compressive strength is 5.0Mpa, and the other indicators meet the requirements of B600 and A5.0, which is different from traditional incineration and curing. Compared with legal treatment, the resource utilization of waste is realized.

Embodiment 2

[0015] Example 2: Add 30% cement, 20% lime, 5% foaming agent and 40% clear water to the separated sand to prepare mortar and pour it into the mold. After standing for 1-10 hours, transfer to autoclaved Heat the kettle to 100-300°C, keep it warm for 1-7 hours, take it out, and then make it into an aerated foam concrete block. The performance of the product is tested according to "GB 11968-2006 Autoclaved Aerated Concrete Block". The density is 600kg / m3, the compressive strength is 5.0Mpa, and the other indicators meet the requirements of B600 and A5.0, which is different from traditional incineration and curing. Compared with legal treatment, the resource utilization of waste is realized.

Embodiment 3

[0016] Example 3: Add 60% cement, 40% lime, 10% foaming agent and 70% clear water to the separated sand to prepare mortar and pour it into a mold. After standing for 1-10 hours, transfer to autoclaved Heat the kettle to 100-300°C, keep it warm for 1-7 hours, take it out, and then make it into an aerated foam concrete block. The performance of the product is tested according to "GB 11968-2006 Autoclaved Aerated Concrete Block". The density is 600kg / m3, the compressive strength is 5.0Mpa, and the other indicators meet the requirements of B600 and A5.0, which is different from traditional incineration and curing. Compared with legal treatment, the resource utilization of waste is realized.

[0017] The invention effectively solves the problem of soil and environment polluted by oily sludge and sand, turns waste into renewable resources, saves precious energy and a lot of money, can generate huge social and economic benefits, and is suitable for popularization and use.

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Abstract

The invention provides a waste use method for utilizing oily sludge sand to make a building material. The technical scheme is that the method comprises first performing oil, water, mud and sand separation on the oily sludge sand; adding 20%-60% of cement, 10%-40% of lime, 1%-10% of foaming agent and 30%-70% of clear water to the separated sand to make mortar, pouring the mortar into a die; after standing for 1-10h, transferring the mortar to a steaming kettle to heat the mortar to 100-300 DEG C, taking out the mortar after heat insulation for 1-7h, and forming an air-added foam concrete building block. According to the method, the problem that the oily sludge sand pollutes the soil and the environment is effectively solved, waste is changed into renewable resources, valuable energy and plenty of fund are saved, and the method can have huge social benefits and economic benefits and is suitable for being widely popularized and used.

Description

Technical field: [0001] The invention relates to a method for utilizing oily sludge sand, in particular to a method for making building materials using oily sludge sand. Background technique: [0002] Oily sludge sand is mainly produced by oil fields in oil exploration and development. Oily sludge sand itself has complex components, containing a large amount of aged crude oil, wax, colloid, suspended solids, salts, acid gases, etc. It takes hundreds of years to completely decompose under natural conditions; the direct discharge of oily sludge will occupy a large amount of land, and the toxic substances contained in it will pollute water, soil and air, and deteriorate the ecological environment; at present, oily sludge sand in oil fields has been listed Included in the "National Hazardous Waste Catalog" in the oily waste category (HW08 items); according to my country's current crude oil production (16 × 108t / a), nearly one million tons of oily sands are produced every year, cau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/12C04B18/04C04B38/00
CPCY02W30/91
Inventor 梁玉海张俊峰
Owner 梁玉海
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