CN1067034A

CN1067034A - Flake cement

Info

Publication number: CN1067034A
Application number: CN 91103268
Authority: CN
Inventors: 高国章
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-05-22
Filing date: 1991-05-22
Publication date: 1992-12-16

Abstract

A kind of flake Cement, utilize cement slurry to be milled to powder after, add less water, be squeezed into flake Cement in extrusion machine, the end face of raw material is a circular arc, and its outside surface and internal surface all are curved surfaces, tightr between the flake Cement molecule, make chemical reaction abundant, the water yield is few during manufacturing, make the also corresponding minimizing of coal consumption, it is big that sheet shape raw material burn till area, and preheating is fast, burns till also fast, internal and external temperature is even, and it is also good to burn till quality.

Description

Flake Cement

The present invention relates to a kind of manufacturing of flake Cement, belong to building material technical field.

Cement Production is distinguished by the kiln that it burns till, can be divided into two kinds of rotary kiln and shaft kilns, cement slurry is by starting material such as Wingdale, earth, iron powder, coals, become very thin powder through crushing and grinding earlier, in rotary kiln, Powdered raw material are directly sent to Calcined burning in the kiln, rotary kiln itself rotates and stirs raw material in the kiln body, the kiln of general rotary kiln is long all more than 40M, the space is also big in the kiln, the raw material of packing into are less, and thermal losses is big, and cement per ton need consume powder more than 200 kilograms, compare with shaft kiln, the investment of rotary kiln also is ten times of the numbers of shaft kiln.

Shaft kiln is through nodulizer with green powder, spherical raw material powder is made in water and fecula fusion, its diameter is approximately 10 millimeter, send in the shaft kiln body then and burn till, spherical is that water is rolled into automatically, and its moisture content generally is about 15%, about cement consumption coal 120 kg per ton, the spherular cement material is compared with the raw material powder, the gap is bigger between its molecule, and it is insufficient to burn till chemical reaction, so cement mark can't improve, ball burns inside from the surface, the speed of burning till is very slow, and is inhomogeneous to ball center's quality from the surface, and the pellet cooling of burning till is slow, general shaft kiln cooling zone is about 10 times of clinkering zone, but the kiln room should be built very highly, and shaft kiln itself is also very high, and kiln room and facility investment are all bigger, in view of above-mentioned shortcoming need badly further improvement cement slurry it, make.

The objective of the invention is to provide a kind of sheet cement slurry, it has overcome above-mentioned shortcoming basically, the burning till and cool off all soon of cement, and the cement raw meal quality that burns till is also more stable.

The object of the present invention is achieved like this, it is that the cement slurry powder is made sheet shape, flake Cement is made certain curved surface, it itself not the complete plane in a plane, two faces of sheet shape raw material all are made up of curved surface or folding face, and it is all good evenly to guarantee that it burns till ventilation in kiln.

The synoptic diagram of accompanying drawing 1, flake Cement

The synoptic diagram of Fig. 2, tubular cement slurry

Now in conjunction with the accompanying drawings the structure of sheet shape cement is described in further detail:

End face (1) by accompanying drawing 1, flake Cement is the garden arc, its internal surface (2) and outside surface (1) all are curved surfaces, the main spiral extrusion molding that adopts is made, make many mouths similar to end surface shape among Fig. 1 on the end face template of the extrusion of extrusion machine, the raw material of extruding so just are extruded into flake Cement.

Sheet shape raw material are big owing to burning till area, preheating is fast, burns till soon, and internal and external temperature is close, it is also even to burn till quality, and the grog that burns till cooling is fast, so reached the purpose of the fast cold high yield and high quality of fast burning, the flake Cement less water, green powder is pushed shape in blocks through mechanical means, it is intermolecular tightr, and chemical reaction is abundant, and water consumption makes coal consumption reduce less.

Accompanying drawing 2 is synoptic diagram of piped cement slurry, is equally to make to have annular gap shown in Figure 2 on the exit end template of screw extrusion press, just can be extruded as the piped raw material, and the intensity of the strength ratio sheet shape raw material of tubulose raw material is higher.

Compared with prior art, the sheet raw material have following superiority.

1, manufacture method is simple, utilizes a small amount of water that green powder is formed through the extruder extruding, and is tightr between its molecule, makes chemical reaction abundant.

2, make hourly water consumption seldom, coal consumption is descended significantly.

3, it is bigger than powder raw material to burn till area, and preheating is also fast, and internal and external temperature is close, makes that to burn till quality also even.

Claims

1, a kind of flake Cement, the end face (1) that it is characterized in that flake Cement is the garden arc, its internal surface (2) and outside surface (1) all are curved surfaces, it mainly adopts spiral extrusion method to make, making many end faces on the end face template of the extrusion of extrusion machine is arcual mouthful of garden, make spheric cement slurry powder, add after the less water fusion, extruding shape in blocks in extrusion machine.