CN102527277A - Mixing machine - Google Patents

Abstract

The invention discloses a mixing machine. In the mixing machine, a single blade in a traditional mixing machine is replaced by a blade assembly composed of different blades. About 10 tons of materials can be mixed at one time and the working efficiency of the mixing machine is efficiently increased.

Description

Batch mixer

Technical field

The present invention relates to the used blade of a kind of batch mixer, particularly batch mixer.

Background technology

Batch mixer in the application of engineering machinery field more and more widely; For example a large amount of cement batch mixing cars that use on the construction site, and mixing drum, mixer etc., they mainly are that water, cement, sandstone etc. are mixed; Above-mentioned batch mixer only has a kind of blade; Its batch mixing work mainly is to accomplish through the stirring vane in the equipment, and also in one ton, operating efficiency is relatively poor for once mixed material.

When a batch mixing amount reaches 10 tons of left and right sides, only select a kind of blade just can not realize the batch mixing function.

Summary of the invention

The present invention aim to provide a kind of can No. one time the batch mixer of about 10 tons of batch mixings, to solve existing batch mixer because of having only batch mixing of a kind of blade can only be in the problem below 1 ton.

The present invention improves batch mixing efficient through the combined blade that in batch mixer, increases variety classes blade composition, and its concrete technical scheme is following:

The batch mixer that the present invention obtains mainly comprises charging aperture, baffle ring, raceway, plow-shape blade, helical blade, mixing machine cylindrical shell, discharging opening, discharge blade.The plow-shape blade is installed in feed inlet end, prevents that material from piling up to charging aperture, and helical blade mainly is to be used for the evenly mixed and transmission material with material, and discharge blade is installed in discharge port end, and effect is that material is discharged the mixing machine cylindrical shell.

During work; The material that needs to mix gets into batch mixer through charging aperture; With the direction rotation identical with helical blade, at this moment helical blade makes material pile up to feed inlet end to the mixing machine cylindrical shell earlier, but flight blade stops material to be piled up to charging aperture again; Add the rotation of upper shell like this, material just can access sufficient mixing.Reverse rotation cylindrical shell then, material is just discharged cylindrical shell under the double action of helical blade and discharge blade.

According to the variation and the mounting condition of batch mixing amount, the present invention can also suitably adjust the shape and the quantity of blade on the basis of the above, and modify cylindrical shell size.

Compared with prior art; The technique effect that the present invention reaches is a batch mixer of the present invention; Realize batch mixing because of its combined blade that adopts different types of blade to form,, can effectively improve batch mixing efficient in a batch mixing process so the batch mixing about 10 tons also can be accomplished.

Description of drawings

Fig. 1 is the batch mixer cut-away view;

Fig. 2 is the discharging opening structure chart;

Fig. 3 is plow-shape blade construction figure;

Fig. 4 is the helical blade structure chart;

Among the figure: 1-charging aperture, 2-baffle ring, 3-raceway, 4-plow-shape blade, 5-helical blade, 6-mixing machine cylindrical shell, 7-discharge blade, 8-discharging opening.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed description.

Combined blade of the present invention mainly comprises plow-shape blade 4, helical blade 5, discharge blade 7.The plow-shape blade is as shown in Figure 3, adopts pyramidal structure, and big end is outside, and small end is inside, and both sides form a plow-shape angle, and the plow-shape angle is 30 °～45 °, and the plow-shape blade height is identical with the helical blade height, and 1. its length can by formula calculate:

$l=\frac{\mathrm{<figure-callout\; id="5"\; label="L"\; filenames="HSA00000385594700011.png"\; state="\{\{state\}\}">L</figure-callout>}}{5}$ --------①

In the following formula, l is the plow-shape length of blade; L is the length of mixing machine.

The plow-shape blade is close to the mixing machine inwall and is evenly arranged two rows.

Helical blade 5 mainly is to be used for material is fully mixed and transmits material, and the rotation direction of its rotation direction and discharge blade is identical, can 2. calculate by expression formula during design helical blade height:

$h\&GreaterEqual;0.5\&times;k_z\sqrt[2.5]{\frac{Q}{k_d{k}_{\mathrm{\&beta;}}{\mathrm{\&rho;}}_0}}\left(m\right)$ --------②

In the formula: k _z--------material overall characteristic coefficient;

Q--------conveying capacity (t/h);

k _d--------activity coefficient;

k _β--------inclination angle coefficient;

ρ ₀----bulk density (the t/m of----convey materials ³).

The computational methods of helical blade pitch P are: P=1.5h

Discharge blade is installed in discharge port end (7), and effect is that material is discharged mixing machine, and structure is a circular cone platform inner surface structure, and blade end extends to discharging opening, makes things convenient for material to flow out.

What need special instruction is that this blade is to be used on the large-scale batch mixer, and for the stationarity and the security that guarantee work, the rotating speed of mixing machine is all smaller, is 4r/min～8r/min.

Claims (6)

1. batch mixer; Comprise charging aperture (1), baffle ring (2), raceway (3), discharging opening (8), rotary mixing machine cylindrical shell (6), it is characterized in that: the charging aperture (1) of said mixing machine cylindrical shell (6) end is close to mixing machine cylindrical shell (6) wall has that helical blade (5) is equipped with at evenly distributed plow-shape blade (4), middle part, discharging opening (8) is equipped with discharge blade (7).

2. batch mixer as claimed in claim 1 is characterized in that: said plow-shape blade (4) is two rows, totally 6.

3. batch mixer as claimed in claim 1 is characterized in that: the angle of said plow-shape blade (4) is 30 °～45 °.

4. batch mixer as claimed in claim 1 is characterized in that: the height of said plow-shape blade (4) is identical with the height of said helical blade (5), and its length is 1/5 of mixing machine cylindrical shell (6) length.

5. batch mixer as claimed in claim 1 is characterized in that: the height h of said helical blade (5) meets expression:

$h\&GreaterEqual;0.5\&times;k_z\sqrt[2.5]{\frac{Q}{k_d{k}_{\mathrm{\&beta;}}{\mathrm{\&rho;}}_0}}\left(m\right)$

In the formula: k _z--------material overall characteristic coefficient;

Q--------conveying capacity (t/h);

k _d--------activity coefficient;

k _β--------inclination angle coefficient;

ρ ₀----bulk density (the t/m of----convey materials ³);

And the pitch of its helical blade is 1.5h.

6. batch mixer as claimed in claim 1 is characterized in that the rotating speed when said mixing machine cylindrical shell rotates is 4r/min～8r/min.

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