Technique for improving quality and quantity of production output per machine hour of open circuit mill

A production and quality technology, applied in the field of cement processing, can solve the problems that the specific surface area is unsuitable to control, cannot be adjusted, and the concentration of grinding aids has been fixed, etc., to reduce the chance of gypsum dehydration, improve grinding efficiency, and stabilize product quality.

CN1733364AInactive Publication Date: 2006-02-15张士丰
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2006-02-15
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

This invention discloses technique to increase yield and quality when it grinds the plant in open flow system, which is characterized in that, slow releasing solid grinding aid with cool water with pH value of 6~8 at temperature below 25Deg, preparing liquid grinding aid on field, and adding into grinder with controlled precise quantity. With the technique, it can increase whole effect 10~25% for three grinders; it can control precisely the hole sizer of fineness 4900 when residual is 1.5~5.0%, and the special surface area 320~450m2 / kg; the temperature when cement prepared can decrease 10~20Deg; it increases the special surface area with 10~40m2 / kg and early strength with 0.5~1.5MPa for same condition separately.
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Description

Technical field

[0001] The invention belongs to a new technology for processing cement, in particular to a technology for improving the output and quality of an open flow system mill. Background technique

[0002] Generally speaking, the open flow system mill has the advantages of simple process layout, less equipment, low investment and low maintenance cost. However, there are also major disadvantages: ball encapsulation, encapsulation, serious electrostatic adsorption, many over-grinding phenomena, low table time, high power consumption, high cement temperature after grinding, fineness, and specific surface area are not suitable for control. At present, there is a solution to optimize the grinding efficiency of various cements by adding grinding aids. However, the grinding aids used now are in liquid state, and are directly transported to the construction site by the manufacturer for use. Its shortcomings are: transportation is inconvenient, the concentration of the grin...

Examples

Embodiment Construction

[0008] The present invention is described in detail below in conjunction with embodiment:

[0009] Add 200,000 kg of clean cold water with a pH value of 6 to 8 and below 25 degrees to 1 kg of solid grinding aid to make a liquid grinding aid; spray it into the mill through a flow control device.