CN102924028A

CN102924028A - Method for utilizing oily sludge sand to make building material

Info

Publication number: CN102924028A
Application number: CN2012104358897A
Authority: CN
Inventors: 梁玉海; 张俊峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-10-30
Filing date: 2012-10-30
Publication date: 2013-02-13

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

A kind of method of using oil exploitation sludge sand making building materials

Technical field:

The present invention relates to a kind of method of utilizing of oily sandy sludge, especially a kind of method of using oil exploitation sludge sand making building materials.

Background technology:

Oily sandy sludge mainly is that the oil field produces in petroleum prospecting, exploitation, the composition of oily sandy sludge own is comparatively complicated, contain a large amount of aging crude oil, wax, colloid, suspended solid, salt, sour gas etc., the existence of these compositions causes to decompose fully under the natural condition needs the years up to a hundred; Oily sludge directly effluxes and can take a large amount of soils, and toxic substance meeting polluted water, soil and air that it contains worsen ecotope; At present, Sludge in Oilfields sand is put into the oily waste class (HW08 item) in " national Hazardous wastes catalogue "; (16 * 108t/a) estimations have nearly 1,000,000 tons oil sludge and sand to produce every year, and are seriously polluted, need to be resolved hurrily according to the present crude production rate of China.

Summary of the invention

Purpose of the present invention is exactly the defective that exists for prior art, and a kind of method of using oil exploitation sludge sand making building materials of utilization of waste material is provided.Its technical scheme is: first oily sandy sludge is carried out oil, water, mud, four separation of sand, the cement of sand interpolation 20%-60% after the separation and 10%-40% lime and 1%-10% whipping agent and 30-70% clear water are prepared into mortar and are poured in the mould, after leaving standstill in 1-10 hour, turn order to autoclave and be heated to 100-300 ℃, and insulation taking-up after 1-7 hour, namely be made into the aerating foam concrete block.Product is tested its performance according to " GB 11968-2006 autoclave aerated concrete building block ", density is 600kg/m3, and ultimate compression strength is 5.0Mpa, and all the other indexs meet B600, the index request of A5.0 is processed with solidification method with traditional burning and to be compared the recycling of having realized refuse.

The oily sandy sludge processing technological flow is: oily sandy sludge enters sand-washing device through sand pump in the pond, after sand-washing device cleans separation, sand is disposed to the washed-out sand tank, the sand-washing device overflow sewage, sump oil, mud goes back to sump oil silt particle pond and reclaims, adding the joint station oil extraction-generated waste water in the washed-out sand tank mixes, opening the tank top agitator carries out stirring while washing, mixed sand water liquid is promoted to thickener by concentrate pump, and to carry out secondary cleaning concentrated, sand after concentrated enters concentration tank and concentrates, the thickener overflow liquid flows back to mud sand pond, long-pending sand in the concentration tank regularly discharges, drain into transfer roller be promoted to vibratory screening apparatus carry out sand moisture from, sewage is squeezed into the joint station waste disposal plant through sump pump and is processed by the oil recovery factory.

The making flow process of aerating foam concrete block is: the oil sludge and sand after the physical treatment-interpolation cement, lime, auxiliary agent--preparation mortar-foams mix stirs-leaves standstill-steam pressure Hydrothermal Synthesis-foam concrete block.

The present invention has effectively solved the problem of oily sandy sludge contaminated soil and environment, and refuse is become renewable resource, has saved the valuable energy and a large amount of funds, can have a tremendous social and economic benefits, and is fit to generally promote the use of.

Embodiment

Main technologic parameters

1, goods unit weight is by the control of 700 kilograms per cubic meter;

2, churning time: 15-20 minute;

3, the cast slurry temperature is 20-50 degree centigrade;

4, base substrate is quiet stops.Time 3-5 hour, (about 30 ° of temperature, quietly stop rear blank strength 0.15-0.18Mpa; )

Embodiment 1: the cement of the sand interpolation 20% after the separation and 10% lime and 1% whipping agent and 30% clear water are prepared into mortar and are poured in the mould, after leaving standstill in 1-10 hour, turn order to autoclave and be heated to 100-300 ℃, and insulation taking-up after 1-7 hour, namely be made into the aerating foam concrete block.Product is tested its performance according to " GB 11968-2006 autoclave aerated concrete building block ", density is 600kg/m3, and ultimate compression strength is 5.0Mpa, and all the other indexs meet B600, the index request of A5.0 is processed with solidification method with traditional burning and to be compared the recycling of having realized refuse.

Embodiment 2: the cement of the sand interpolation 30% after the separation and 20% lime and 5% whipping agent and 40% clear water are prepared into mortar and are poured in the mould, after leaving standstill in 1-10 hour, turn order to autoclave and be heated to 100-300 ℃, and insulation taking-up after 1-7 hour, namely be made into the aerating foam concrete block.Product is tested its performance according to " GB 11968-2006 autoclave aerated concrete building block ", density is 600kg/m3, and ultimate compression strength is 5.0Mpa, and all the other indexs meet B600, the index request of A5.0 is processed with solidification method with traditional burning and to be compared the recycling of having realized refuse.

Embodiment 3: the cement of the sand interpolation 60% after the separation and 40% lime and 10% whipping agent and 70% clear water are prepared into mortar and are poured in the mould, after leaving standstill in 1-10 hour, turn order to autoclave and be heated to 100-300 ℃, and insulation taking-up after 1-7 hour, namely be made into the aerating foam concrete block.Product is tested its performance according to " GB 11968-2006 autoclave aerated concrete building block ", density is 600kg/m3, and ultimate compression strength is 5.0Mpa, and all the other indexs meet B600, the index request of A5.0 is processed with solidification method with traditional burning and to be compared the recycling of having realized refuse.

Claims

1. use the method that oil exploitation sludge sand is made building materials for one kind, it is characterized in that: first oily sandy sludge is carried out oil, water, mud, four separation of sand, the cement of sand interpolation 20%-60% after the separation and 10%-40% lime and 1%-10% whipping agent and 30-70% clear water are prepared into mortar and are poured in the mould, after leaving standstill in 1-10 hour, turn order to autoclave and be heated to 100-300 ℃, and insulation taking-up after 1-7 hour, namely be made into the aerating foam concrete block.

2. a kind of force method that oil exploitation sludge sand is made building materials of using according to claim 1, it is characterized in that: the technical process of oily sludge sand separation is: oily sandy sludge enters sand-washing device through sand pump in the pond, after sand-washing device cleans separation, sand is disposed to the washed-out sand tank, the sand-washing device overflow sewage, sump oil, mud goes back to sump oil silt particle pond and reclaims, adding the joint station oil extraction-generated waste water in the washed-out sand tank mixes, opening the tank top agitator carries out stirring while washing, mixed sand water liquid is promoted to thickener by concentrate pump, and to carry out secondary cleaning concentrated, sand after concentrated enters concentration tank and concentrates, the thickener overflow liquid flows back to mud sand pond, long-pending sand in the concentration tank regularly discharges, drain into transfer roller be promoted to vibratory screening apparatus carry out sand moisture from, sewage is squeezed into the joint station waste disposal plant through sump pump and is processed by the oil recovery factory.