CN101306334B

CN101306334B - Strong-shear mixing machine

Info

Publication number: CN101306334B
Application number: CN200710054748XA
Authority: CN
Inventors: 赵祥雄
Original assignee: Henan Agricultural University
Current assignee: Henan Agricultural University
Priority date: 2007-07-10
Filing date: 2007-07-10
Publication date: 2011-09-28
Anticipated expiration: 2027-07-10
Also published as: CN101306334A

Abstract

The present invention provides a strong-shear mixer which comprises a mixing drum, an inlet orifice and a propelling plant positioned at the upper part of the mixing drum, an outlet orifice positioned at the lower part of the mixer, and a rotor positioned in the mixing drum and driven by the propelling plant, wherein the rotor is composed of a rotating shaft, a screw blade arranged on the rotating shaft and mixing plants positioned on the two sides of the rotating shaft, and the screw blade arranged on the rotating shaft is a screw blade with a single head; each mixing plant comprises a blade shaft, as well as an outer blade and an inner blade, both of which are arranged on the blade shaft, and each of the outer blade and the inner blade has an inclination angle of 4 DEG to 18 DEG with the horizontal direction; the mixing plants on the two sides of the rotating shaft are connected into a whole through a swiveling jib, and the center of the swiveling jib is permanently arranged on the rotating shaft. The mixer has the advantages that the shearing effect is good, and the material mixing uniformity and the mixing efficiency are improved. The mixer has well mixing effect on materials with more fibers, higher density, higher viscosity and higher hardness.

Description

A kind of strong-shear mixing machine

Technical field

The invention belongs to mixer, relate in particular to mixer with shearing force.

Background technology

Shear mixer has colter formula and paddle formula mixer at present.Each divides horizontal and vertical two classes again.Their rotor all has a common ground, promptly paddle or colter all directly and main shaft connect firmly; When the mixing drum diameter of this mixer was big, paddle (or colter) cantilever size was also big, and in order to guarantee the rigidity of paddle (or colter), must strengthen its cross sectional dimensions, therefore, directly influenced the shear effect of mixer to material.Because paddle (or colter) cross sectional dimensions is bigger, the shear ability of mixer is just poorer.Moreover, because near paddle (or colter) peripheral speed the central shaft is very little, near axle, exist one to mix the poor efficiency district, the uniformity that influence mixes reduces mixer efficiency.

Summary of the invention

The purpose of this invention is to provide a kind of strong-shear mixing machine that under the little condition of the jib-length of paddle, still has favorable rigidity and remarkable shear effect.

The objective of the invention is to be achieved through the following technical solutions: this strong-shear mixing machine, comprise mixing drum, be positioned at charging aperture, power set on the mixing drum, be positioned at the discharging opening of its underpart and be positioned at mixing drum and formed by the rotor that power set drive, described rotor is made up of rotating shaft, the agitating device that is contained in the screw blade in the rotating shaft and is positioned at the rotating shaft both sides, scraper plate and prime cement plate are housed on one of them agitating device, and the screw blade that is contained in the rotating shaft is the single head full slice system; Agitating device comprises the slurry bar and is contained in the outside paddle and the inboard paddle of starching on the bar that outside paddle and inboard paddle all have 4-18 ° inclination angle with horizontal direction; Outside paddle that slurry is adorned on the bar in the rotating shaft one side agitating device and inboard paddle respectively with rotating shaft opposite side agitating device in the outside paddle adorned on the slurry bar and inboard paddle by axially being staggered uniformly up and down; The agitating device of rotating shaft both sides is connected by pivoted arm, and the center of pivoted arm is packed in the rotating shaft.

Described pivoted arm has upper and lower two, and the two ends of last pivoted arm are connected in the upper end of two slurry bars respectively, and the two ends of following pivoted arm are connected in the lower end of two slurry bars respectively.

Outside paddle and inboard paddle all are fixedly mounted on the slurry bar.

Outside paddle and inboard paddle all are assemblied on the slurry bar by screw.

Because the paddle among the present invention is not directly to connect firmly in rotating shaft, but directly connect firmly on the slurry bar, make that like this jib-length of paddle only is under original 1/2nd the situation, and the strength and stiffness of structure improve obviously.When therefore making, under the condition that satisfies the paddle strength and stiffness, can dwindle paddle cross sectional dimensions and area, the resistance of motion is reduced, therefore under condition low in energy consumption, shear effect also can be significantly improved.What connect firmly in rotating shaft is the single head helical blade, paddle and inboard paddle all have the inclination angle with horizontal direction outside being contained on the slurry bar, therefore when rotor rotation, agitating device carries out helical feed in mixed material, outside paddle between slurry bar and barrel promotes material and moves upward, helical blade promotes a tube center material and moves downward on the inboard blade of slurry bar and the shaft, when material forms circulation, rolls in tube, diffusion motion the time, two row paddles are implemented strong shearing to material.The uniformity and the mixing efficiency of mixing of materials have improved in poor efficiency district when this equipment has been eliminated the work of shear mixer such as existing colter formula, paddle formula.If when making, allow the position that is contained in the inside and outside blade on the two slurry bars by axially being staggered uniformly up and down, will further increase shearing probability to material.Therefore, the density more for the fibre-bearing thing of the mixer among the present invention, viscosity, material that hardness is bigger also have good mixed effect, and for example the excrement of animals for bulk also can play good immixture.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 be among Fig. 1 A-A to schematic diagram;

Fig. 3 is the local enlarged diagram at B position among Fig. 1;

Fig. 4 is the schematic side view of Fig. 3.

The specific embodiment

Embodiment

This strong-shear mixing machine comprises mixing drum 6, has charging aperture 12, its underpart that discharging opening 9 is arranged on the mixing drum 6, and power set 14 are contained on the last end face of mixing drum 6, the additive tube 13 that communicates with the mixing drum inner chamber in addition on this end face; The rotor that is positioned at mixing drum is driven by power set 14; Rotor is made up of rotating shaft 1, the agitating device that is contained in the screw blade 2 in the rotating shaft 1 and is positioned at the rotating shaft both sides; Agitating device comprises the slurry bar, is contained in outside paddle 4 and the inboard paddle 5 of slurry on the bar, and outside paddle and inboard paddle all have an inclined angle alpha with horizontal direction, and inclined angle alpha is 15 °, and outside paddle and inboard paddle to be positioned at the projection of starching the bar centre crossing.Two agitating devices are fixed together by pivoted arm, pivoted arm in the present embodiment has upper and lower two, the two ends of last pivoted arm 11 are connected in the upper end of side slurry bar 3 and opposite side slurry bar 3a respectively, the two ends of following pivoted arm 7 are connected in the lower end of side slurry bar 3 and opposite side slurry bar 3a respectively, and the center of last pivoted arm 11 and following pivoted arm 7 is packed in respectively in the rotating shaft 1.

The screw blade 2 that is contained in the rotating shaft 1 is the single head full slice system; Outside paddle of being adorned on the slurry bar 3a of the outside paddle of being adorned on the slurry bar 3 of rotating shaft 1 one side agitating devices 4 and inboard paddle 5 and rotating shaft 1 opposite side agitating device 4 and inboard paddle 5 are by axially evenly being staggered up and down; On the slurry bar of an agitating device prime cement plate 8 is housed therein, prime cement plate 8 be contained in the slurry bar by under the position.Scraper plate 10 is equipped with in the end of outside paddle 4.

According to mixed thing needs roll, the needs of diffusion, when outside paddle and inboard paddle are assemblied on the slurry bar 3, the inclined angle alpha of they and horizontal direction can be 4 °, 5 °, 8 °, 10 °, 13 °, 16 °, 18 °, in a word, can select arbitrarily angled between 4-18 ° for use.

Outside paddle and inboard paddle can be fixedly installed togather with the slurry bar, as adopting outside paddle and the welding of inboard paddle or being riveted on the slurry bar, also can be machined directly to one to outside paddle and inboard paddle with the slurry bar.For the ease of the replacing of paddle, the also reliable screw of outside paddle and inboard paddle is assemblied on the slurry bar, and outside paddle and inboard paddle can also adopt splined or elastic ring to connect with starching between the bar.

Screw blade 2 also can adopt multistage, so as to dismantle easy to maintenance, but can not be gapped between every period of when assembling.

Also prime cement plate 8 and scraper plate 10 can be set on the agitating device in this equipment, but this structure makes easily on mixing drum 6 inwalls and the base plate and adheres to material.

Two agitating devices also can be fixed together by a pivoted arm, and this pivoted arm can be packed in the upper end of side slurry bar 3 and opposite side slurry bar 3a, also can be packed in the middle part of side slurry bar 3 and opposite side slurry bar 3a.But the smoothness of agitating device was relatively poor when this structure was rotated at rotor.

Power set 14 in this equipment can adopt general motor or variable speed electric motors, particularly, can adopt general motor to combine with gearbox, preferably adopt variable speed electric motors, particularly.

Additive tube on mixing drum 6 end faces should be arranged on them the both sides of power set if adopt two.

Claims

1. strong-shear mixing machine, comprise mixing drum, be positioned at charging aperture, power set on the mixing drum, be positioned at the discharging opening of its underpart and be positioned at mixing drum and formed by the rotor that power set drive, described rotor is made up of rotating shaft, the agitating device that is contained in the screw blade in the rotating shaft and is positioned at the rotating shaft both sides, scraper plate and prime cement plate are housed on one of them agitating device, it is characterized in that: the screw blade that is contained in the rotating shaft is the single head full slice system; Agitating device comprises the slurry bar and is contained in the outside paddle and the inboard paddle of starching on the bar that outside paddle and inboard paddle all have 4-18 ° inclination angle with horizontal direction; Outside paddle that slurry is adorned on the bar in the rotating shaft one side agitating device and inboard paddle respectively with rotating shaft opposite side agitating device in the outside paddle adorned on the slurry bar and inboard paddle by axially being staggered uniformly up and down; The agitating device of rotating shaft both sides is connected by pivoted arm, and the center of pivoted arm is packed in the rotating shaft.

2. strong-shear mixing machine according to claim 1 is characterized in that: described pivoted arm has upper and lower two, and the two ends of last pivoted arm are connected in the upper end of two slurry bars respectively, and the two ends of following pivoted arm are connected in the lower end of two slurry bars respectively.

3. strong-shear mixing machine according to claim 2 is characterized in that: outside paddle and inboard paddle all are fixedly mounted on the slurry bar.

4. strong-shear mixing machine according to claim 2 is characterized in that: outside paddle and inboard paddle all are assemblied on the slurry bar by screw.