WO2018103120A1

WO2018103120A1 - Method for manufacturing small aperture hollow nest bricks

Info

Publication number: WO2018103120A1
Application number: PCT/CN2016/109598
Authority: WO
Inventors: 史喜婷
Original assignee: 史世英
Priority date: 2016-12-09
Filing date: 2016-12-13
Publication date: 2018-06-14
Also published as: CN106631116A

Abstract

A method for manufacturing small aperture hollow nest bricks, the method for manufacturing bricks comprising the following steps: 1) ingredients: component 1: 45-75 parts of clay; component 2: 30-50 parts of construction waste debris material for making brick and concrete structures directly crushed into less than 10 mm in one step by a roller crusher; component 3: 16-18 parts of water; and component 4: 0.5-1 parts of 0.4-0.7 mm diameter polystyrene spherical particles; 2) putting the raw materials into a mixer and mixing for 5-7 minutes; 3) by means of a rubber belt conveyor, directly conveying the mixed raw materials to a vacuum extruder for extrusion and forming; 4) after passing through an automatic blank cutting machine, forming semi-finished green bricks; 5) stacking the semi-finished green bricks onto a drying vehicle and sending same into a drying chamber for drying; and 6) using an energy-saving wheel kiln for firing, the firing temperature being 950°C-1100°C.

Description

Small aperture hollow nest brick manufacturing method

Technical field

The invention relates to a method for manufacturing a small aperture hollow nest brick, belonging to the technical field of artificial artificial stone in chemistry.

Background technique

At present, the discharge of construction waste in China is growing rapidly. According to statistics: in the construction process of new buildings such as brick-concrete structure, full cast-in-place structure and frame structure, construction waste is generated 500-600 tons per 10,000 square meters. Today, construction waste discharges account for 30% to 40% of the total amount of municipal waste. Most of them are transported to the suburbs or villages without any treatment, and are disposed of by open-air stacking or simple landfill. Land and a large amount of transportation costs. At the same time, the dust generated during the removal and stacking process causes environmental pollution.

In addition, according to the applicant, the widespread use of polystyrene products has brought a lot of convenience to people, but due to the difficulty in compression and degradation of waste polystyrene, and the lack of sufficient understanding of the environmental pollution caused by waste foam plastics, The used waste foam plastic products are discarded at will, and the polystyrene has the characteristics of aging resistance, refractory degradation and corrosion resistance, which causes serious harm to the environment and becomes a major problem in garbage disposal.

Summary of the invention

The technical problem to be solved by the present invention is to solve the defects of the prior art, and propose a method for comprehensively utilizing construction waste and waste polystyrene to prepare a light small-aperture hollow nest brick.

The technical solution proposed by the present invention to solve the above technical problem is: a method for manufacturing a small aperture hollow nest brick, comprising the following steps:

1) Select the following ingredients according to the quality:

Component 1: clay: 45-75 parts;

Component 2: through the roller crusher directly broken into 10 mm or less of brick-concrete structure construction waste powder: 30-50 parts;

Component three: water: 16-18 parts;

Component 4: 0.4-1 parts of polystyrene spheres having a particle diameter of 0.4-0.7 mm;

2) stirring the above raw materials into a mixer for 5-7 minutes;

3) The raw materials after the mixing are directly conveyed by a belt conveyor to a vacuum extruder for extrusion molding;

4) forming a semi-finished brick by an automatic cutting machine;

5) The semi-finished brick blank code is placed on the drying cart and sent to the drying chamber for drying;

6) Roasting is carried out using an energy-saving rotary kiln, and the sintering temperature is 950 ° C to 1100 ° C.

The working mechanism and beneficial effects of the technical solution for manufacturing the small-aperture hollow nest brick disclosed in the above invention are as follows:

1) By disposing 45-75 parts of clay, and 30-50 parts of the concrete by a roller crusher, directly into a brick-concrete structure of 10 mm or less, 16-18 parts of water and 0.5 -1 part of 0.4-0.7mm particle size polystyrene pellets are mixed, the above raw materials are put into a mixer and stirred for 5-7 minutes, then transferred to a vacuum extruder for extrusion molding, and then passed through an automatic cutting machine. The semi-finished bricks are formed, dried in a drying chamber, and finally fired in an energy-saving wheel kiln, so that a small-aperture hollow nest is formed inside the final brick product, the pore volume is significantly optimized, the porosity is high, the thermal conductivity is small, and the heat preservation performance is high, The final brick product has a light overall weight and high thermal insulation performance; 2) due to the use of energy-saving wheel kiln for roasting, it can uniformly and centrally treat the pollutants generated by the brick-concrete structure construction waste dust powder and polystyrene pellet roasting, Greatly eliminate the environmental pollution caused by these two kinds of waste, and generate great social benefits.

A variation of the above technical solution is that in the step 3), the vacuum extruder has a working pressure of 1.8 to 2.2 MPa.

The variation of the above technical solution is that the particle size of the powder in the brick-concrete structure building waste powder in the second component is less than or equal to 45%.

detailed description

Example

A method for manufacturing a small aperture hollow nest brick of the embodiment includes the following steps:

1) Select the following ingredients according to the quality:

Component 1: clay: 45-75 parts;

Component three: water: 16-18 parts;

2) stirring the above raw materials into a mixer for 5-7 minutes;

4) forming a semi-finished brick by an automatic cutting machine;

In this embodiment, in the step 3), the vacuum extruder has a working pressure of 1.8 to 2.2 MPa.

The particle size of the powder in the brick-concrete structure construction waste toner in the second component of the embodiment is less than or equal to 45%.

The present invention is not limited to the above embodiment. Any technical solution formed by equivalent replacement falls within the scope of protection required by the present invention.

Claims

A method for manufacturing a small aperture hollow nest brick, comprising: the following steps:

1) Select the following ingredients according to the quality:

Component 1: clay: 45-75 parts;

Component 2: through the roller crusher directly broken into 10 mm or less of brick-concrete structure construction waste powder: 30-50 parts;

Component three: water: 16-18 parts;

Component 4: 0.4-1 parts of polystyrene spheres having a particle diameter of 0.4-0.7 mm;

2) stirring the above raw materials into a mixer for 5-7 minutes;

3) The raw materials after the mixing are directly conveyed by a belt conveyor to a vacuum extruder for extrusion molding;

4) forming a semi-finished brick by an automatic cutting machine;

5) The semi-finished brick blank code is placed on the drying cart and sent to the drying chamber for drying;

6) Roasting is carried out using an energy-saving rotary kiln, and the sintering temperature is 950 ° C to 1100 ° C.
The method for manufacturing a small-aperture hollow nest brick according to claim 1, wherein in the step 3), the vacuum extruder has a working pressure of 1.8 to 2.2 MPa.
The method for manufacturing a small-aperture hollow nest brick according to claim 1, wherein the particle size of the powder in the brick-concrete structure of the component 2 is less than 0.5 mm and the particle content is greater than or equal to 45%. .