CN103908994A - Method for increasing yield of cement grinding system and reducing power consumption - Google Patents

Abstract

The invention discloses a method for increasing the yield of a cement grinding system and reducing the power consumption. The method comprises the following steps: (1) firstly, adjusting the ball matching of a first bin, wherein grinding balls are classified into five classes; (2) then adjusting the length of each bin, wherein the total length of all bins is not changed, the length of the first bin is shortened by 0.1-1m, the length of a second bin is increased by 0.1-0.5m, and the length of a third bin is increased by 0.1-1m; (3) reducing the loading capacity of a grinding body, wherein the loading capacity of an existing grinding body is 91-95 percent of that of an original grinding body. The method has the beneficial effect of being scientific and practical, the production efficiency and the quality of grinding products are effectively improved, the energy consumption of the grinding system is reduced, the yield of the grinding system is increased, and the method has a wide promotional value.

Description

A kind of cement grinding system output and reduction power consumption method of improving

Technical field

The present invention relates to a kind of cement grinding system output and reduction power consumption method of improving.

Background technology

In manufacture of cement, ball mill is the capital equipment of material grinding, although along with the development of cement production enterprise maximization, some large enterprises type selecting in cement slurry preparation has vertical mill, but the grinding of cement is most or type selecting ball mill, and ball mill occupies ratio more than 98% at cement grinding equipment.How to improve mill output, the factor of the each side such as the average diameter that must take into full account abrasive body material, useful load, each storehouse filling rate, sphere diameter is 90, material moisture, material fluidity, raw meal particle size, partition panel form, partition panel castor seam size, each storehouse length, grinding flow process, the more multiple factors above of looking several in the research at present mill output being affected, and ignore the consideration for each storehouse length of grinding machine.

Summary of the invention

The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, a kind of method of science practicality, raising ball mill output is provided.

The technical solution adopted for the present invention to solve the technical problems is:

A kind of cement grinding system output and reduction power consumption method of improving, completes according to the following steps:

1) first adjust a storehouse ball and join, its mill ball is divided into for Pyatyi;

2) length in each storehouse then, but the total length in each storehouse is constant, one storehouse contraction in length 0.1～1m, two storehouse length increase by 0.1～0.5m, and three storehouse length increase by 0.1～1m;

3) reduce abrasive body useful load, existing abrasive body useful load is 91%～95% of original abrasive body useful load.

The invention has the beneficial effects as follows:

The present invention has the feature of science practicality, effectively raises production efficiency and ground prod quality, has reduced the energy consumption of grinding system, has increased grinding system output, has promotional value widely.

Detailed description of the invention

The present invention is further illustrated in conjunction with the embodiments now.

Grinder taking sphere diameter as 90 is as example:

The function in ball mill one storehouse is mainly to carry out fragmentation to entering this storehouse material, and for the grindings in small, broken bits, three storehouses of two storehouse materials provide condition, in production practices, we find a storehouse breaking capacity surplus of conventional lengths, as following table:

Sample point is apart from bistrique length (rice)	0.5	1	1.5	2	2.5	3	3.5
								80 μ m tail over fineness	73.8	70.6	66.8	62.6	60.3	59.2	58.8

According to a kind of cement grinding system output and reduction power consumption method of improving of the present invention, complete according to the following steps:

1) first adjust a storehouse ball and join, its mill ball is divided into for Pyatyi, and its diameter is respectively 90mm, 80mm, 70mm, 60mm, 50mm;

2) length in each storehouse then, but the total length in each storehouse is constant, one storehouse length is 2.5m, and two storehouse length are 3.25m, and three storehouse length are 6.75m;

3) abrasive body useful load I 125 tons.

Final implementation result is as follows:

Increase output: unit-hour output reaches 67～70 tons, than adjusting first 60～62 tons, improved 6～8 tons, by 6 tons of calculating, a grinding machine can be produced 50,000 tons of cement for 1 year more.

Saving 3.2 × 13 meters of cement producing line installed capacitys of power consumption: Φ is 2200kwh, 2200/61=36.06 degree, 2200/68=32.4kwh, cement economize on electricity per ton: 36.06-32.4=3.66kwh, 3.66kwh × 0.6 yuan=2.196 yuan, cement per ton reduces costs 2.196 yuan of grinding machine electric currents and drops to 105A from 110A, and economize on electricity 72 per hour is spent, annual every mill economize on electricity 518400 degree, amount to 31.1 ten thousand yuan of RMB.

Taking above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this invention technological thought, carry out various change and amendment completely.The technical scope of this invention is not limited to the content on description, must determine its technical scope according to claim scope.

Claims (1)

1. improve cement grinding system output and reduce a power consumption method, it is characterized in that, completing according to the following steps:

1) first adjust a storehouse ball and join, its mill ball is divided into for Pyatyi;

2) length in each storehouse then, but the total length in each storehouse is constant, one storehouse contraction in length 0.1～1m, two storehouse length increase by 0.1～0.5m, and three storehouse length increase by 0.1～1m;

3) reduce abrasive body useful load, existing abrasive body useful load is 91%～95% of original abrasive body useful load.