Sintered light-weight environment-friendly brick produced from electroplating sludge and manufacture method thereof

A technology of electroplating sludge and environmentally friendly bricks, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve problems such as environmental hazards, polluted soil and groundwater resources, complex components of electroplating sludge, etc. Energy, the effect of avoiding secondary pollution

Active Publication Date: 2010-09-15
清远绿由环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the composition of electroplating sludge is relatively complex, the water content is high, especially the heavy metal content is high, and it is a highly polluting and dangerous solid waste.
If it is directly landfilled without treatment, it will pollute the soil and groundwater resources, easily produce secondary pollution, and cause serious harm to the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The mold electroplating processing plant adopts large-scale mechanical electroplating equipment such as intelligent oxidation, linear electroplating, intelligent copper, nickel, chromium electroplating, hydraulic electroplating, automotive-specific coating, intermediate frequency magnetic control coating, decorative vacuum coating, and multi-functional ion coating. Surface sandblasting, polishing, rolling, polishing, brushing, large mechanical electroless nickel plating, large It is a kind of solid waste that is separated from the waste sand and industrial wastewater produced in the production process of chemical nickel plating and aluminum alloy direct plating of printer bearings after treatment. After dehydration, deodorization, disinfection, chelation treatment, drying, and then rolling and sorting, it is made into a powder with a particle size of less than -3mm;

[0049] Solid waste such as waste sediment generated during the construction of urban residential constr...

Embodiment 2

[0054] Get the electroplating sludge powder material 35kg of embodiment 1, basic waste sludge powder material 30kg, slag powder material 18kg, garbage ash powder material 18kg, particle diameter be the calcium oxide 13kg of 0.2mm, calcium sulfate 6kg, sodium carbonate 1.8kg , 1.8kg of boric acid, 1.2kg of ferrous sulfate, 5kg of magnesium sulfate, 0.6kg of Li macromolecule heavy metal collector and 15kg of water, the above-mentioned raw materials are mixed and stirred with a twin-shaft mixer to become moist, and then extruded into a rectangular shape using a vacuum extruder The strip shape is cut and formed by a blank cutting machine, and the light-weight environmentally friendly adobe of electroplating sludge is made under a pressure of 23Mpa. After 7 days of natural drying, the formed and naturally dried electroplating sludge environmentally friendly adobe is sent to the tunnel by a battery car The kiln is roasted, and after roasting, it is made into electroplated sludge sint...

Embodiment 3

[0056] Get embodiment 1 electroplating sludge powder 45kg, basic waste sludge powder 25kg, slag powder 25kg, garbage ash powder 15kg, particle diameter is the calcium oxide 20kg of-0.2mm, calcium sulfate 8kg, sodium carbonate 2.5kg , 2.5kg of boric acid, 2kg of ferrous sulfate, 8kg of magnesium sulfate, 0.8kg of Li macromolecule heavy metal collector and 22kg of water, mix and stir the above-mentioned raw materials to be moist, then extrude with mechanical vibration and form under a pressure of 30Mpa After 7 days of natural drying of the electroplating sludge lightweight hollow blocks, the formed and naturally dried electroplating sludge lightweight hollow blocks are sent to the tunnel kiln for roasting by a battery car, and after roasting, the electroplating sludge light Quality hollow block products. After testing, the average compressive strength is: 8.3Mpa, the minimum value of a single block is: 7.2Mpa, the dry apparent density is: 1022kg / m3, and the drying shrinkage rate...

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Abstract

The invention relates to a sintered light-weight environment-friendly brick produced from electroplating sludge and a manufacture method thereof. The sintered light-weight environment-friendly brick is characterized by being prepared by adopting electroplating sludge, base waste sludge, furnace slag, refuse ash, calcium oxide, calcium sulfate, sodium carbonate, boric acid, ferrous sulfate, magnesium sulfate, Li macromolecular heavy metal trapping agent and water are adopted as raw materials; and the manufacture method comprises the following steps of: mixing and stirring the raw materials in a biaxial mixer to be in a moisture state; extruding into rectangular bars by a vacuum sludge extruder; cutting and forming by a blank cutter; manufacturing light-weight environment-friendly brick blanks of electroplating sludge under the pressure of 20-30 MPa; and conveying the formed and naturally dried light-weight environment-friendly brick blanks into a tunnel kiln to roast and manufacture light-weight environment-friendly brick products. Air laying bricks and pavement bricks in different specifications can also be manufactured by the raw materials of the invention, and the product has the advantages and the effects of light weight, great strength, zero pollution, low cost and good benefits.

Description

technical field [0001] The invention relates to a sintered lightweight environmental protection brick produced from electroplating sludge. Specifically, it is a sintered brick produced with electroplating sludge from a mold electroplating processing plant, dehydrated dry mud powder and basic waste sand as main raw materials. The utility model relates to a lightweight environment-friendly brick, which belongs to the field of waste treatment. [0002] The invention also relates to a manufacturing method of the sintered lightweight environmental protection brick. Background technique [0003] Electroplating sludge is a mold electroplating processing plant, which adopts large-scale mechanical electroplating such as intelligent oxidation, linear electroplating, intelligent copper, nickel, chromium electroplating, hydraulic electroplating, automotive special coating, intermediate frequency magnetic control coating, decorative vacuum coating, multi-functional ion coating, etc. Equ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B18/30
CPCY02W30/91
Inventor 李桓宇古耀坤
Owner 清远绿由环保科技有限公司
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