Background technology
The raw material preparation field of current architectural pottery, especially ceramic wall and floor bricks, all adopts wet ball grinding technique, spray-dired method.The raw material entering factory is mainly added a certain proportion of water by this method, and carry out grinding the mud prepared and reach certain fineness in ball mill, and then by spray drying tower by the water evaporates in mud, thus be met the even size particles shape powder of production requirement.Traditional wet processing dewaters afterwards because needs first add water, and raw material is first wet by dry change, then by wet exsiccation.The a large amount of heat energy of this process need consumption, adds the discharge capacity of carbon dioxide simultaneously, has run counter to the production requirement of energy-saving and emission-reduction.
Ceramics by dry granulating technique novel is at present the trend of architectural ceramic industry future development.This dry method granulation processes is by material being ground to form superfine dry mash, then being sent in comminutor by powder, and sprays water smoke in comminutor, makes powder mix with water and have viscosity, and carries out cutting stirring, thus forms spherical particle.This technique dewater dry amount of moisture few, therefore saved a large amount of energy, it also avoid the discharge of carbon, met modernization green produce requirement.
But because existing mixing crushing process makes stickiness raw material mix fragmentation according to a certain percentage with non-plastic raw material in existing non-slurry pelletizing, comparatively there is conglomeration again, cannot to ensure in follow-up grinding that pug is pulverized equably and make fine powder.
Summary of the invention
The purpose of this utility model after being to solve non-slurry pelletizing Raw fragmentation mixing no longer again the problem such as conglomeration a kind of raw material mixing breaker of ceramics by dry granulation is proposed.
For reaching this object, the utility model by the following technical solutions:
A raw material mixing breaker for ceramics by dry granulation, comprises blending bin, the first shaft, the second shaft and drive unit; Described first shaft and described second shaft, all through blending bin, the first shaft in described blending bin and described second shaft are arranged at intervals with blade; The output of described drive unit is connected with described first shaft, and described second shaft is connected with described first shaft by transmission device; Described blending bin is provided with discharging opening.
Preferably, the output shaft of described drive unit is directly connected with described first shaft by shaft coupling.
Preferably, described transmission device is gear drive, and described gear drive comprises driving gear and driven gear; Described driving gear is installed on described first shaft, and driven gear is installed on described second shaft, and described driving gear and described driven gear are in transmission connection.
Preferably, described blade is staggered installation of and is fixed on shaft, and the angle β between adjacent two blades is 110-130 degree.
Preferably, described blade comprises handle of a knife and cutter head, and described handle of a knife through shaft, and is fixed on described shaft.
Preferred further, described handle of a knife is mounted on described shaft by screw.
Preferably, the tilt angle alpha of described cutter head and described shaft is 20-35 °.
Preferably, the edge of described cutter head has radian.
Preferred further, the edge radian of described cutter head is 1-5 °.
Preferably, described discharging opening, away from the charging aperture of described blending bin, is positioned at the bottom of described blending bin.
The utility model is by twin shaft relative rolling type shearing-crushing, make the fully broken mixing of stickiness material, on shaft, raw material can be smashed by spaced blade, and can avoid because stickiness raw material stick the impact that broken mixed effect is caused, stickiness material and ridge material are fully mixed, thus conglomeration again after avoiding broken raw material, to ensure in follow-up grinding that pug is pulverized equably and make fine powder, use to be applicable to final dry powder humidification prilling.
Detailed description of the invention
The technical solution of the utility model is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, a kind of raw material mixing breaker of ceramics by dry granulation, comprises blending bin 1, first shaft 21, second shaft 22 and drive unit 4; Described first shaft 21 and described second shaft 22, all through blending bin blending bin 1, the first shaft 21 in described blending bin 1 and described second shaft 22 are arranged at intervals with blade 5; The output of described drive unit 4 is connected with described first shaft 21, and described second shaft 22 is connected with described first shaft 21 by transmission device; Described blending bin 1 is provided with discharging opening 6.
The flow process of non-slurry pelletizing is: pug mixing (stickiness raw material is with non-plastic raw material)-raw material fragmentation-batching-humidification granulation-oven dry-warehouse entry; (1) stickiness raw material and non-plastic raw material carry out just mixing, (2), by mixed crushing material become superfine powder, (3), by powder good for fragmentation according to certain ratio batching and carry out pneumatic homognization mixing in homogenizing storehouse and the powder mixed weighed; (4), will comminutor be utilized to carry out humidification granulation by the powder of weighing; (5) particle, made enters fluidized bed drying; (6), finally dried particle is put into storage silo.In non-slurry pelletizing flowchart process, the fragmentation of mixed material is by mixed material is put into described blending bin 1 by blanking device 8, then under the driving of described drive unit 4, described first shaft 21 rotates, described first shaft 21 drives described second shaft 22 to rotate by transmission mechanism, described blade 5 on described first shaft 21 and described second shaft 22 carries out fragmentation to mixed material and stirs in rotary course, and final mixture material out enters next process from described discharging opening 6.Stickiness material (such as clay) is very soft, and there is very high viscosity, use crushing technology (such as jaw crusher in the prior art, double-roll crusher) be difficult to realize its broken mixing, and in broken mixed process, it can stick on the rolling-compaction roller in mixing crusher, cause mechanical disorder, and the utility model is by twin shaft relative rolling type shearing-crushing, make the fully broken mixing of stickiness material, on shaft, raw material can be smashed by spaced blade, and can avoid because stickiness raw material stick the impact that broken mixed effect is caused, stickiness material and ridge material are fully mixed, thus conglomeration again after avoiding broken raw material, ensure that in follow-up oven dry grinding, pug evenly can be pulverized and makes fine powder, use to be applicable to final dry powder humidification prilling.
Preferably, the output shaft of described drive unit 4 is directly connected with described first shaft 21 by shaft coupling.
Described first shaft 21 is directly connected with the output shaft of described drive unit 4 by described shaft coupling, and such connected mode structure is simple, and compact conformation cost is low; And high by described shaft coupling transmission efficiency, the precision of transmission is simultaneously also high.
Preferably, described transmission device 7 is gear drive 7, and described gear drive comprises driving gear 71 and driven gear 72; Described driving gear 71 is installed on described first shaft 21, and driven gear 72 is installed on described second shaft 22, and described driving gear 71 and described driven gear 72 are in transmission connection.
Adopt the gearratio of gear drive 7 transmission accurate, efficiency is high, compact conformation, reliable operation, and the life-span is long; Described first shaft 21 can be made different with the direction of rotation of described second shaft 22 simultaneously, rotate in homogeneous phase, improve the efficiency of raw material fragmentation and the well-balanced property of raw material mixing.
As shown in Figure 3, preferably, described blade 5 is staggered installation of and is fixed on shaft 2, and the angle β described in adjacent two between blade 5 is 110-130 degree.
Preferably, described blade 5 comprises handle of a knife and cutter head, and described handle of a knife through shaft 2, and is fixed on described shaft 2.
Handle of a knife is fixed on described shaft 2, and described cutter head is used for shearing-crushing material; Such blade structure is convenient to install and is fixed.
Preferred further, described handle of a knife is mounted on described shaft 2 by screw.
Described handle of a knife is installed fixing by described screw, install, dismantle, change convenient, and cost is low.
As shown in Figure 3, preferably, the angle of inclination of described cutter head and described shaft is 20-35 °.
The angle of inclination that described cutter head and described shaft have can make material produce power to raising up, and under the acting in conjunction of gravity, centrifugal force, they fully can be dispersed in the space of described blending bin; And tilt angle alpha is 20-35 °, within the scope of this, the broken efficiency stirred is higher, and well-balanced property that is broken and that stir is higher.
Preferably, the edge of described cutter head has radian.
Described cutter head edge is provided with radian, is beneficial to material cutting like this.
Preferred further, the edge radian of described cutter head is 1-5 °.
Edge radian is 1-5 °, and the efficiency of shearing is higher, and it is more well-balanced to shear material.
Preferably, described discharging opening 6, away from the charging aperture of described blending bin 1, is positioned at the bottom of described blending bin 1.
Described discharging opening 6, away from the charging aperture of described blending bin 1, is positioned at the bottom of described blending bin 1; Under the effect of described shaft 2, material meeting nature, from outflow, achieves the seamless link of raw material mixing fragmentation and proportioning process.
Below know-why of the present utility model is described in conjunction with specific embodiments.These describe just in order to explain principle of the present utility model, and can not be interpreted as the restriction to the utility model protection domain by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other detailed description of the invention of the present utility model, and these modes all will fall within protection domain of the present utility model.