KR100915432B1 - manufacture method brick of permeability a utilization zincslag - Google Patents

Abstract

The present invention relates to a method of manufacturing a floor brick having a permeability function using zinc slag, which is a contaminant of iron (F2) component contained in zinc concentrate. The object of the present invention is to provide a floor brick having low product properties and low manufacturing cost. It also aims to recycle the zinc residues environmentally.

According to the present invention, a zinc slag having a particle diameter of 1.0 mm or more and 5.0 mm or less and a crushed stone pulverized product having a diameter of 1.0 to 3.0 mm are mixed at a predetermined ratio and pressurized by adding water corresponding to 10% by weight of the total amount of the mixture at 1100 to 1200 ° C. It is a method of manufacturing a water-permeable floor brick produced by heat treatment in a preheating, firing and cooling step over time.

Description

Manufacturing method of permeability floor brick using zinc slag {manufacture method brick of permeability a utilization zincslag}

The present invention relates to a method for producing a water-permeable bottom brick using zinc slab having an environmentally friendly and perfect water permeability, and is manufactured to have a good water permeation function by using zinc slag and crushed bricks.

Conventional floor bricks consisted of absorbing some parts without passing water, and existing floor bricks manufactured to have water permeability are smoothly penetrated at first. There was a problem in that the water permeation function is bound to be lost because it accumulates in the hole.

For example, a permeable brick made of porous porcelain material of Korean Patent Publication No. 91-1935 as a main raw material. Korean Patent Registration No.0131052 A pitcher composed of a waste layer and a surface ash portion glazed on a fired product of clay or clay particles. brick,

Korea permeability which the surface layer consists of a patent registration and the call 0,130,603 SiO ₂ containing combustion ash solidification water and waste glass or pottery stone and the lower layer consisting of water glass and clay material as waste glass or water glass brick,

Although there are products such as permeable bricks, through which a hole having a diameter of 3.5 to 5.0 mm is formed in the brick of Application No. 10-2001-005348, the bricks have a problem of high manufacturing cost and difficulty in purchasing materials due to the complexity of the manufacturing process. The bricks show excellent permeability at the beginning after construction, but after a certain period of time, impurities such as soil fill up the permeation space and lose the permeability function itself.

The present invention has been made to solve the above problems, and the object of the present invention is to provide a water-permeable bottom brick that has perfect permeability and recycled zinc slag. Permeability such as abrasion and water absorption is to provide a perfect permeable floor brick.

The present invention is solved by producing a permeable bottom brick using zinc slag and crushed bricks.

The bottom brick crushed product having the permeability of the present invention has a perfect permeability because it forms many pores in the brick.

In addition, by utilizing zinc slag, a highly stable and highly sintered raw material that is environmentally proven as an iron compound contained in zinc concentrate, it has an arrangement of particle size with natural and clean atmosphere without shrinkage and fading phenomenon. Due to its surface projection shape, it has a walking sensation and anti-slip effect when walking. In rainy weather, water trapping is prevented due to the water permeation function.

The permeable floor brick according to the present invention has an average of about 50% of the volume of pores in the transverse and longitudinal directions of 2.0 to 4.0 mm on the basis of general floor brick or permeable floor brick, and also shrinkage in drying and plasticity. Characterized by a fired product without.

In addition, the present invention is characterized in that it is molded by using water as a binder for bonding, and put into a mold without distinguishing the base portion and the surface layer portion and press-molded by a press and then fired at a temperature of 1100 ~ 1200 ℃.

Hereinafter, the present invention will be described in detail with examples.

Zinc slag, the main raw material, is an iron (Fe) component contained in zinc concentrate, which is an environmentally stable clean slag by the zinc residue treatment technology of the wet smelting process, and is a metal that can be recycled permanently without changing physical and chemical properties. It's a residue.

In Korea, slag is produced from Korea Zinc, Ulsan, which is about 120,000 tons of zinc residues processed per year, and its recycling is a breakthrough technology.

In addition, the particles of zinc slag are composed of a circular particle size of 1.0 ~ 5.0mm within the zinc concentrate smelting method and has the characteristic of mutual bonding by its own moisture.

By using the characteristics of zinc slag, water is used as a binder, and for the development of color, the product is press-molded using 1.0 ~ 3.0mm of clay brick crushed powder. It is characterized by making a functional permeable brick that can maintain the perfect permeability function and improve the habitat environment of microorganisms inhabiting soil under the bottom brick due to the formation pores.

Example 1

When manufacturing permeable brick with only zinc slag, add water to 10% by weight of the total weight of zinc slag, mix, put the mixture into a mold, press-press (600Kgh / cm ² ), and preheat it at 1150 ℃ for 36 hours. A bottom brick having water permeability was prepared by heat treatment in a calcination and cooling step.

Example 2

Mix 80% of zinc slag and 20% of crushed bricks by weight, knead to add 10% water to the mixture, mix the mixture into a mold and press-press with a press (600kgf / cm ² ) at 1150 ℃. Through the preheating, firing, and cooling steps over time, a bottom brick having a permeability was manufactured.

Example 3

Mix 50% of zinc slag and 50% of crushed bricks by weight, add water to 10% of the total mixture, and put it into a mold and press-press (600kgf / cm ² ) to form a mold and then press for 36 hours at 1150 ℃. In the step of preheating, calcining, and cooling over, a bottom brick having water permeability was prepared.

Property evaluation results of the bottom brick having water permeability obtained by the above embodiment are shown in Table 1 below.

Table 1

division Compressive strength Water absorption Permeability (kgf / cm ² ) (%) (Cm / sec) Example 1 800 0 3.OX10-2 Example 2 750 0.8 2.7X10-2 Example 3 700 1.5 2.OX10-2 General pitcher brick 1 380 5.0 0.8X10-2 General pitcher brick 2 400 7.2 0.7X10-2

In the table above, the permeability coefficient (kp) (Cm / sec) is

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Where L: length of specimen [cm] a: cross section of container [cm ² ] A: cross section of permeability [cm ² ] t2-t1: permeation time [s] h1: level of starting test [mm] h2: level of test completion [mm]

Claims (3)

A mixing step of mixing the zinc slag and the crushed bricks at a predetermined ratio; A water control step of adding water to 10% by weight of the mixture; A molding step of pressing the moisture-controlled mixture with a press Method of manufacturing permeable floor brick using zinc slag, which is completed by heat-treating the molded product at 1100 ~ 1200 ℃ for 36 hours by preheating, firing and cooling The method of claim 1, Mixing ratio of zinc slag and crushed bricks is 80: 20% by weight of the permeable bottom brick manufacturing method using zinc slag The method of claim 1, Mixing ratio of zinc slag and crushed bricks is 50: 50% by weight, manufacturing method of permeable bottom brick using zinc slag