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JT-SL Series Raw Grinding Aids

JT-SL Series Raw Grinding Aids

The main components of this series of cement raw meal grinding aids are mainly organic surfactants, complex alcohol amines, and other liquid products supplemented by polyols. They are generally brown and non-transparent, without irritating odor, and do not damage Human health.
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1. Product introduction

The main components of this series of cement raw meal grinding aids are mainly organic surfactants, complex alcohol amines, and other liquid products supplemented by polyols. They are generally brown and non-transparent, without irritating odor, and do not damage Human health.

Specifications: 250 kg/barrel, 1 ton/barrel, and bulk.

Density: (20℃±1℃): 1.15-1.26(g/cm3)

PH value: (20℃±1℃): 6~9

Solid content: 36±1(%)

Product shelf life: 12 months

Recommended dosage: 0.1%-0.2% (m/m) of cement raw meal quality

The use of the product in the cement raw meal does not affect the cement raw meal composition

2. Scope and performance

It is suitable for grinding cement raw meal in tubular mill and vertical mill, increasing the hourly output of the mill, reducing the power consumption of grinding, improving the decomposition rate of cement raw meal, improving the quality of clinker, and increasing the output of the kiln, etc.

When used in the production of cement raw meal by a tubular mill, the use of this grinding aid can increase the mill's hourly output by more than 10%, reduce power consumption by 10-15%, and improve cement production while maintaining the same fineness of the cement raw meal. Raw meal decomposition rate, improve clinker quality, reduce total SO2 emission in kiln tail gas, and reduce coal consumption. Solve the shortage of cement raw meal supply and reduce equipment maintenance costs.

When used in vertical mill to produce cement raw meal, under the condition of keeping the same fineness of cement raw meal, the use of this grinding aid can increase the mill's hourly output by 5-10%, reduce power consumption by 4-8%, and stabilize The thickness of the mill material layer can reduce the vibration speed of the mill, improve the decomposition rate of cement raw meal, improve the quality of clinker, reduce the total amount of SO2 emissions in the kiln tail gas, and reduce coal consumption. Solve the shortage of cement raw meal supply and reduce equipment maintenance costs.

3. Use examples

Case 1: YF Cement Company

Φ4.2*8 single warehouse air-swept mill, before and after using JT-SL10A grinding aid to produce cement raw meal, the specific results are shown in Table 1.

Table 1: Statistics of changes before and after the addition of JT-SL10A grinding aid to raw cement meal (average value)

time

Grinding aid content (%)

Raw Mill Output
(t/h)

Electricity consumption of raw meal section (kWh)

Raw meal fineness (80μm sieve %)

Content of particles below 10μm (%)

Content of particles above 200μm (%)

Raw meal decomposition rate (%)

Standard coal consumption of clinker coal (kg/t)

blank period

0

166

23.07

17.9

34.58

2.19

93.19

106.2

Experimental period

0.1

185

20.66

16.8

31.20

1.88

95.36

104.1

Contrast difference

 

+19

-2.41

-1.1

-3.38

-0.31

+2.17

-2.1

Contrast Difference +19 -2.41 -1.1 -3.38 -0.31 +2.17 -2.1

From the comparison before and after the experiment, it can be seen that after adding the special grinding aid for raw meal, the hourly output of the mill is increased by 19 tons/hour on average, the yield is increased by 11.4%, the power consumption is decreased by 2.41KWh on average, and the fineness of the finished raw meal is The content of particles below 10μm and the content of particles above 200μm have decreased, the particle size of the finished raw meal tends to be more concentrated, and the decomposition rate of raw meal is increased, which is more conducive to clinker calcination, and coal consumption per ton of clinker is reduced. Standard coal can be reduced by 2.1kg.

Case 2: HH Cement Company

ATOX-50 vertical mill, before and after using JT-SH20A grinding aid in the production of cement raw meal, the specific results are shown in Table 2.

Table 2: Statistics of changes before and after the addition of JT-SL20A grinding aid to raw cement meal (average value)

time

Grinding aid content (%)

Raw mill output (t/h)

Electricity consumption of raw meal section (kWh)

Raw meal fineness (80μm sieve %)

Mill Vibration
(mm/s)

Raw meal decomposition rate (%)

Standard coal consumption of clinker coal (kg/t)

blank period

0

386

16.65

19.2

2.66

93.32

109.3

Experimental period

0.2

416

15.62

18.8

2.45

94.46

106.1

Contrast difference

 

+30

-1.03

-0.4

-0.21

+1.14

-3.2

From the comparison before and after the experiment, it can be seen that after adding the special grinding aid for raw meal, the hourly output of the mill is increased by an average of 30 tons/hour, and the yield is increased by 7.8%. %, the fineness of the finished raw meal is reduced, the vibration speed of the mill is reduced, the operation stability of the vertical mill is improved, and the decomposition rate of the raw meal is improved, which is more conducive to clinker calcination, and the standard coal consumption per ton of clinker coal is reduced. Can reduce 3.2kg.

4. The value of using raw grinding aids

The economic value generated by the use of special grinding aids in the production of cement raw meal is divided into two parts, one part is direct economic value and the other part is indirect economic value.

(1) Direct economic value:

1. The hourly output of the mill is increased, the production of the tube mill is increased by more than 10%, and the power consumption is reduced by 10-15%; the production of the vertical mill is increased by 5-10%, and the power consumption is reduced by 4-8%.

2. The hourly output of the mill is increased, the operation rate of the mill is relatively reduced, and the annual maintenance cost of the mill is reduced;

3. The decomposition rate of cement raw meal is increased, and the coal consumption of cement clinker is reduced, which can be reduced by 2-4kg/t when converted to standard coal;

4. The output of cement raw material per unit time increases, and the production of cement clinker increases; clinker is easier to burn, and the output of clinker per unit time can be increased by 3-5%; the total profit of cement clinker increases, making up for the lack of clinker supply.

(2) Indirect economic value:

1. The distribution of cement raw meal particles is relatively concentrated, the clinker kiln section is reduced, the processing time is reduced, and the kiln shutdown accident rate is reduced;

2. The fine particles of cement raw meal are reduced, the amount of dust and ash collected is reduced, and the quality stability of cement clinker is improved.

3. Improve the decomposition rate of calcium carbonate, the CaO generated in advance can improve the adsorption and reaction of SO2, and reduce the total emission of SO2 in the kiln exhaust gas;

5. Storage methods and conditions

This series of grinding aids are weak alkaline liquids. It is recommended to use plastic or stainless steel equipment for storage and airtight storage. The storage equipment should be equipped with a circulation device, and the product should be recycled regularly to ensure the uniformity of the product. The recommended storage temperature is -10°C to 40°C.

6. How to join when using

1. When there is no need to increase the adding height, the metering pump can be directly used for metering;

2. When it is necessary to increase the adding height of grinding aid, it is generally added by the method of secondary pumping.

The schematic diagram is as follows:

JT-SL系列生料助磨剂

For companies that use our grinding aids, we provide customers with storage tanks and related metering devices, as well as the detection and control methods of the added amount.

7. Precautions

(1) This grinding aid should be used after passing the inspection. Acceptance inspection methods are:

1. Acceptance of homogeneity, the density, water content, pH value and color of the newly arrived grinding aid are tested, and whether each index is within the allowable error range;

2. Acceptance of small mills, use the same batch of cement raw materials, and compare the grinding of qualified grinding aids and new grinding aids according to the ratio of raw cement production, each grinding aid is simultaneously ground for 2 mills and the first mill is removed , use the second mill to test various indicators, and the 80μm sieve balance of the cement raw meal is within the range of plus or minus 0.5%, which is qualified;

The first method is generally used when the grinding aid is used continuously, and the second method is only used when there is a great difference in the quality of the grinding aid.

(2) When handling and storing barreled grinding aids, it should be prevented from being dropped, smashed, squeezed by external force and approaching high temperature, and the stacking height should not exceed two barrels;

(3) Before use, check the company's logo before opening the cover to confirm that the product and model are correct before putting it into use;

(4) This product is slightly corrosive to the skin. After contact with the skin, it should be washed with water, and it should not be eaten by mouth;

(5) When using this product, when the ambient temperature is lower than -5°C for 5 consecutive days, insulation measures should be taken to prevent the increase of product viscosity from affecting normal use.

We could not find any corresponding parameters, please add them to the properties table
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