Method for producing sintered straight-through water-conveying water-permeable bricks by utilizing lithium tailings and steel slag tailings

A technology of lithium tailings and permeable bricks, which is applied in the field of solid waste utilization, can solve the problems of polluting the environment and occupying land, and achieve the effects of good water permeability, reducing occupation, and maintaining surface water circulation

Inactive Publication Date: 2018-11-16
唐山庄信科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These solid wastes not only occupy the

Method used

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  • Method for producing sintered straight-through water-conveying water-permeable bricks by utilizing lithium tailings and steel slag tailings

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Example Embodiment

[0027] Example 1

[0028] A method for producing sintered straight-through water-conveying permeable bricks using lithium tailings and steel slag tailings, the method comprising the following steps:

[0029] (1) Homogenization treatment of lithium tailings and steel slag tailings: firstly, the lithium tailings and steel slag tailings are homogenized separately, the steel slag tailings are homogenized and then crushed through a 10 mesh sieve, and the lithium tailings are homogenized and passed through a 20 mesh sieve ;

[0030] (2) Ingredients: Put 52kg of lithium tailings, 15kg of steel slag tailings, 33kg of clay raw materials, and 42kg of water into the ball mill, mix and grind for 13h, and sift through 80 mesh to remove iron;

[0031] (3) Preparation of sintered straight-through water-conveying permeable brick: Put the iron-removed ingredients into a mud pool, press and filter into a mud cake, and then practice mud. The mud is extruded out of the mud section, and the mud section ha...

Example Embodiment

[0033] Example 2

[0034] A method for producing sintered straight-through water-conveying permeable bricks using lithium tailings and steel slag tailings, the method comprising the following steps:

[0035] (1) Homogenization treatment of lithium tailings and steel slag tailings: firstly, the lithium tailings and steel slag tailings are homogenized separately, the steel slag tailings are homogenized and then crushed through a 10 mesh sieve, and the lithium tailings are homogenized and passed through a 20 mesh sieve ;

[0036] (2) Ingredients: Put 55kg of lithium tailings, 20kg of steel slag tailings, 35kg of clay raw materials, and 45kg of water into a ball mill, mix and grind for 12h, and sift through 80 mesh to remove iron;

[0037] (3) Preparation of sintered straight-through water-conveying permeable bricks: put the iron-removed ingredients into a mud pool, press and filter them into mud cakes, and then practice mud. The mud is extruded out of the mud section, and the mud section...

Example Embodiment

[0039] Example 3

[0040] A method for producing sintered straight-through water-conveying permeable bricks using lithium tailings and steel slag tailings, the method comprising the following steps:

[0041] (1) Homogenization treatment of lithium tailings and steel slag tailings: firstly, the lithium tailings and steel slag tailings are homogenized separately, the steel slag tailings are homogenized and then crushed through a 10 mesh sieve, and the lithium tailings are homogenized and passed through a 20 mesh sieve ;

[0042] (2) Ingredients: Put 57kg of lithium tailings, 22kg of steel slag tailings, 38kg of clay raw materials, and 47kg of water into a ball mill, mix and grind for 13h, and then sift through 80 mesh to remove iron;

[0043] (3) Preparation of sintered straight-through water-conveying permeable bricks: put the iron-removed ingredients into a mud pool, press and filter them into mud cakes, then practice mud, and then extrude the mud section with a water content of 18%. ...

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Abstract

The invention discloses a method for producing sintered straight-through water-conveying water-permeable bricks by utilizing lithium tailings and steel slag tailings. The method comprises the following steps: performing homogenization treatment on the lithium tailings and the steel slag tailings, putting the processed lithium tailings, the processed steel slag tailings, a clay raw material and water into a ball mill according to a certain ratio, performing mixing fine grinding, performing sieving to remove iron, putting the iron-removed material in a mud pool, performing filter pressing to form a mud cake, performing mud refining to extrude mud sections, performing extrusion molding on the mud sections to obtain wet green sintered water-permeable bricks with uniformly-distributed straight-through water-conveying holes of 5-10 mm, cutting the wet green bricks, putting the cut wet green bricks on supporting plates, sending the supporting plates to a tunnel kiln, and performing drying; and performing high-temperature sintering on dry green bricks according to a certain firing system at temperature of 1100-1200 DEG C in an energy-saving double-layer tunnel kiln to prepare the water-permeable bricks. The water-permeable bricks disclosed by the invention have a plurality of functions such as very good water permeability and hydrophobicity, no pollution, high strength, strong corrosion resistance, good freeze-thaw resistance, long service life, climate adjustment, elimination of an urban heat island effect, and maintaining of surface water circulation, and meet the requirements ofenergy conservation and emission reduction, environmental protection and development of low carbon economy in China.

Description

technical field [0001] The invention belongs to the technical field of solid waste utilization, and in particular relates to a method for producing sintered straight-through water delivery type permeable bricks by utilizing lithium tailings and steel slag tailings. Background technique [0002] With the rapid development of my country's economy, the continuous improvement of people's living standards and the large-scale construction of cities, most of the city's surface is covered by buildings, cement concrete, floor tiles, etc. These solid objects are not conducive to the infiltration of rainwater into the ground in time. Heavy rainstorms are prone to waterlogging, which brings great problems to the travel and traffic safety of urban people. This kind of situation generally occurs in cities all over the country every summer, and the painful lessons are vividly remembered. In addition, the currently used road square bricks are generally unfired cement sand bricks, which basi...

Claims

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Application Information

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IPC IPC(8): C04B33/138C04B33/132C04B33/10C04B33/32
CPCC04B33/10C04B33/132C04B33/138C04B33/32C04B2201/50C04B2235/96Y02P40/60Y02A30/60
Inventor 吴冀
Owner 唐山庄信科技有限公司
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