Method for preparing bricks from siliceous stone coal and vanadium waste ore
A technology for siliceous stone coal vanadium and preparation steps is applied in the field of preparing bricks from siliceous stone coal vanadium waste ore, and can solve the problem that natural osmotic pressure of water cannot play a role, the aging time of siliceous stone coal vanadium waste ore is short, and the green body Low plasticity index, etc., to achieve reliable mechanical properties, improved frost resistance, and good molding quality.
Active Publication Date: 2017-08-04
邳州东博信息技术有限公司
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
We conducted research on it and found that the main problem is the cracking of the brick body. The main reason for the cracking of the brick body is: the strength of the brick body is poor due to the low plasticity index, and the aging time of the siliceous stone coal vanadium waste ore is short, and the moisture in the raw material The natural osmotic pressure cannot play a role
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] The present embodiment will be described in detail below.
[0032] The preparation steps of this embodiment are:
[0033] (1) Raw material equipment.
[0034] The siliceous stone coal vanadium waste ore is mixed with clay, the particle size of the clay is less than 2mm, and the weight of the clay is 30% of the weight of the total raw materials.
[0035] (2) crushed.
[0036] The crushing equipment adopts hammer mill to strengthen the mechanical processing of raw materials. The content of limestone in siliceous stone coal vanadium waste ore is high, so it should be finely crushed to ensure that the particle size is less than 2mm. More than 60%.
[0037] (3) Stir for the first time.
[0038] The stirring time for the first time is 5-6 minutes, the rotating speed is 60-80r / min, and then add water to make it mix into a plastic shape. The blade of the mixer should be repaired and welded in time to ensure that the gap between the blade of the mixer and the wall of the m...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a method for preparing bricks from waste siliceous stone coal vanadium ores. The method is characterized by comprising the following preparation steps: (1) preparing raw materials; (2) smashing; (3) stirring for the first time, wherein the first-time stirring time is 5-6 min, and the rotating speed is 60-80 r / min; (4) wheel-grinding by adopting a wheel-grinding machine, wherein the forming moisture content is confirmed to be 13%; (5) stirring for the second time, wherein the second-time stirring time is 4-5 min, and the rotating speed is 90-120 r / min; (6) aging, wherein the aging time is 72 h, and the volume of an aging bin is larger than 2000 m<3>; (7) extruding under the vacuum condition, wherein the vacuum degree of minus 0.092-minus 0.094 MPa is ensured, and the extruding pressure of 2.6-3.0 MPa is ensured; (8) drying, wherein the air humidity at the machine inlet end of a drying room is controlled to be 85-95%, and the air supply temperature is controlled to be 80-120 DEG C; (9) calcinating, wherein the calcination cycle is 42 h, the temperature is increased by 50 DEG C per hour from the beginning to the 14th hour on average, and the temperature is increased by 30 DEG C per hour from the 14th hour to the 22th hour on average, the temperature is kept constant from the 20th hour to the 42th hour, and the constant temperature is 950-970 DEG C. The product prepared by the method is excellent in the forming quality and reliable in the mechanical property.
Description
technical field [0001] The invention relates to the field of building materials, in particular to a method for preparing bricks from siliceous stone coal and vanadium waste ore. Background technique [0002] The reserves of siliceous stone coal vanadium ore are very rich in our country, and they are widely distributed in Hunan, Shaanxi, Guangxi, Zhejiang and other provinces of our country. The extraction of vanadium pentoxide from siliceous stone coal vanadium ore has been well applied, and the refined vanadium pentoxide is mainly used in steel, glass and ceramic industries, sulfuric acid and petrochemical production industries. It is of great significance to develop and utilize the treated siliceous stone coal and vanadium waste ore. [0003] Table 1 shows the chemical composition of siliceous stone coal vanadium waste ore. According to the chemical composition of siliceous stone coal vanadium waste ore, it is completely feasible to make bricks from it. We conducted resea...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/132
CPCY02P40/60
Inventor 叶香竹
Owner 邳州东博信息技术有限公司