CN202527251U

CN202527251U - Full-ceramic and pollution-free fluidized bed jet mill

Info

Publication number: CN202527251U
Application number: CN2011205219394U
Authority: CN
Inventors: 陆锁根
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-14
Filing date: 2011-12-14
Publication date: 2012-11-14
Anticipated expiration: 2021-12-14

Abstract

The utility model discloses a full-ceramic and pollution-free fluidized bed jet mill. The full-ceramic and pollution-free fluidized bed jet mill comprises a crushing chamber, a classifying chamber, an upper cover, a feeding auger, a crushing spay nozzle, an air seal and a classifying impeller, wherein a feed opening of the feeding auger is connected with a feeding hopper; a discharge opening of the feeding auger is connected with a feed opening of the crushing chamber; the crushing spray nozzle is arranged in the crushing chamber; the air seal and the classifying impeller are arranged in the classifying chamber; ceramic linings are respectively arranged on the inner wall of the feeding hopper, the inner wall of a feeding pipe, the inner wall of the crushing chamber, the inner wall of the classifying chamber and the inner wall of the upper cover; a feeding propulsion screw, the crushing spray nozzle and the air seal are respectively made of ceramic materials; and the classifying impeller is an integral full-ceramic impeller which is manufactured by adopting a cold isostatic pressing method. The part of the full-ceramic and pollution-free fluidized bed jet mill provided by the utility model, which is contacted with the crushed materials, is completely made of full-ceramic material; the pollution to the crushed material in the crushing process is avoided; and meanwhile, the full-ceramic and pollution-free fluidized bed jet mill has the advantages of capability of meeting the fineness requirement, high cutting precision, adjustable crushing particle size and narrow particle size distribution range.

Description

The pollution-free fluidized bed air flow crusher of a kind of full pottery

Technical field

The utility model relates to a kind of fluidized bed air flow crusher, relates in particular to a kind of full ceramic part and ceramic-lined and can in crushing process, not cause the full pottery to being polluted by comminuting matter to pollute fluidized bed air flow crusher.

Background technology

Current new high-tech material makes rapid progress; Particularly new light sources material (for example three primary colours phosphor powder, IED luminescent material etc.), new energy materials (for example lithium battery just/negative material, solar cell material etc.), electronic material, high-new ceramic material, military project material etc.; The powder purity of raw materials of these new high-tech materials requires high; Generally all in the PPM level; Be in the material processing any metal ion or impurity sneak into the variation that all can make these ultrapure material generation matter, destroy its original performance, cause the quality problems of material even make it to scrap.Therefore, when using apparatus that these new high-tech materials are pulverized, require pollution-free work, to keep quality of materials.

Complete ceramic-lined flat (or claiming disc type) airslide disintegrating mill usually is used to pulverize some purity requirements than higher material, such as titanium white powder, pharmaceuticals, nutriment, food etc. as a kind of low pollution apparatus.But such pulverizer leans on the centrifugal force classification, and its powder particle diameter size is big, particle size distribution range is big, and cutting accuracy is poor, can't satisfy the requirement of many new material particle diameter fineness requirement and powder particle diameter adjustable size.Like this, design a kind of requirement that can satisfy the powder particle diameter adjustable size, can satisfy simultaneously fineness requirement again, and can not pollute by the pulverizer of comminuting matter very necessaryly.

The airslide disintegrating mill that is called as fluid bed has independently hierarchy system, and function can satisfy fineness requirement as the one of which; And can satisfy the requirement of powder particle diameter adjustable size, powder particle diameter narrow distribution range, still, many parts of this type pulverizer all adopt the metal material manufacturing; Such as; What the screw feeding device used is stainless steel, therefore, and the DeGrain aspect antipollution.

The utility model content

Goal of the invention: in order to overcome the deficiency that exists in the prior art; The utility model provides a kind of can satisfy fineness requirement, cutting accuracy is high; And powder particle diameter adjustable size, particle size distribution range are narrow, simultaneously to by the free of contamination complete ceramic fluidized bed air flow crusher of comminuting matter.

Technical scheme: for solving the problems of the technologies described above, the technical scheme that the utility model adopts is:

The pollution-free fluidized bed air flow crusher of a kind of full pottery comprises crushing chamber, is positioned at crushing chamber top and is attached thereto logical classification chamber and seals the loam cake in classification chamber, and the feeding auger, pulverizes nozzle, sealing gland and classifying turbine; Said feeding auger comprises the charging augering screw and is sleeved on the feed pipe on the charging augering screw that the charging aperture of feeding auger connects loading hopper, the charging aperture of discharging opening connection crushing chamber; Pulverize nozzle and place in the crushing chamber, sealing gland and classifying turbine place in the classification chamber; On the inwall of the inwall in the inwall of the inwall of loading hopper, feed pipe inwall, crushing chamber, classification chamber and loam cake, be equipped with ceramic-lined; Said charging augering screw, pulverizing nozzle, sealing gland are ceramic material, and said classifying turbine is for adopting the complete ceramic impeller of integral type of isostatic cool pressing manufactured.

Above-mentioned pulverizer, its all parts that contact with crushed material all adopt ceramic material, have effectively avoided the pollution of apparatus to crushed material; The complete ceramic impeller of integral type that adopts the isostatic cool pressing manufactured simultaneously is as classifying turbine, and its linear velocity can effectively improve the smashing fineness of crushed material up to 55m/s.

During work, at first crushed material is added in the feed hopper, the charging augering screw rotates and equably adds crushing chamber in through feed pipe the crushed material of sending into; Through pulverizing nozzle ejection gases at high pressure, crushed material is become some bursts of loadings flow the bump that the focus that also sprays to a setting simultaneously forms material and material again, reach the pulverizing purpose; Because the pulling of classifying turbine and system's mesohigh air-introduced machine makes to form little negative pressure in the crusher cavity, make that the material after pulverizing rises in crusher cavity with air-flow rapidly simultaneously; When the material after pulverizing arrives classifying turbine; The particle that meets the particle diameter specification gets into classifying turbine with the classified impeller of air-flow slit and discharges the entering gathering system by discharging opening; The particle that does not meet the particle diameter specification is deposited to the crushing chamber bottom again and accepts to pulverize once more because the excessive classifying turbine that can not get into of its centrifugal force also gets rid of to the classification cavity wall; Go round and begin again, form continuous disintegrating process.

So-called sealing gland is promptly done a chuck and is inserted air on discharging opening, the air that from a circle micropore, sprays, and the classifying turbine end face forms a circle air curtain in the sealing gland river, seals coarse grain footpath particle.In crushing process, sealing gland can effectively prevent not meet the particle (being coarse grain footpath particle) of particle diameter specification and by carried away by air movement, avoid making it to get into gathering system; The size of regulating its aperture promptly can realize adjusting the powder particle diameter size, and the purpose of control powder particle diameter distribution generally designs its aperture less than 1mm, preferably less than 0.8mm.

The number of said pulverizing nozzle can design as required, can be 3,4,5,6 or other numbers.

The ceramic material that this pulverizer adopts is a kind of material or the composite of two or more materials in aluminium oxide ceramics, zirconia ceramics, silicon oxide ceramics, silicon oxide ceramics, silication silicon pottery, the boron nitride ceramics.

Beneficial effect: the pollution-free fluidized bed air flow crusher of a kind of full pottery that the utility model provides; Itself and crushed material contact portion all are ceramic material; In crushing process, can not pollute crushed material; Can satisfy simultaneously fineness requirement, cutting accuracy is high, and powder particle diameter adjustable size, particle size distribution range are narrow.

Description of drawings

Fig. 1 is the structural representation of the utility model.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is done explanation further.

Be illustrated in figure 1 as the pollution-free fluidized bed air flow crusher of a kind of full pottery; Comprise frame 13, be fixed on crushing chamber 6 on the frame 13, be positioned at crushing chamber 6 tops and be attached thereto logical classification chamber 2 and seal the loam cake 1 in classification chamber 2, and feeding auger 11, pulverize nozzle 9, sealing gland 3 and classifying turbine 4; Said feeding auger 11 comprises and is connected the charging augering screw on reinforced motor 12 output shafts and is sleeved on the feed pipe on the charging augering screw that the charging aperture of feeding auger 11 connects loading hopper 10, and discharging opening connects the charging aperture of crushing chamber 6; Pulverize nozzle 9 and place in the crushing chamber 6, and join circle 7 through metal hose 8 and gas and link to each other; Sealing gland 3 places in the classification chamber 2 with classifying turbine 4, and classifying turbine 4 is connected on the output shaft of classification motor 5; On the inwall of the inwall in the inwall of the inwall of loading hopper 10, feed pipe inwall, crushing chamber 6, classification chamber 2 and loam cake 1, be equipped with ceramic-lined; Said charging augering screw, pulverizing nozzle 9, sealing gland 3 are ceramic material, and said classifying turbine 4 is for adopting the complete ceramic impeller of integral type of isostatic cool pressing manufactured; Promptly all and crushed material contact portion are accomplished full ceramic material.

Said charging augering screw comprises turning cylinder and is sleeved on the turning cylinder and fixing with it ceramic thread bush; When processing charging augering screw; At first adopt the isostatic cool pressing method to be pressed into hollow circular-tube ceramic powders, make the blank sintering after, turning cylinder is packed in the pipe; And glued joint and to be fixed together, on pipe, process helicla flute through fine finishining at last.

Said sealing gland 3 is full ceramic capillary plate, and its aperture is less than 1mm; The ceramic material that this pulverizer adopts is a kind of material or the composite of two or more materials in aluminium oxide ceramics, zirconia ceramics, silicon oxide ceramics, silicon oxide ceramics, silication silicon pottery, the boron nitride ceramics.

The above only is the preferred implementation of the utility model; Be noted that for those skilled in the art; Under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.

Claims

1. complete ceramic pollution-free fluidized bed air flow crusher; Comprise crushing chamber (6), be positioned at crushing chamber (6) top and be attached thereto logical classification chamber (2) and seal the loam cake (1) of classification chamber (2), and feeding auger (11), pulverize nozzle (9), sealing gland (3) and classifying turbine (4); Said feeding auger (11) comprises the charging augering screw and is sleeved on the feed pipe on the charging augering screw that the charging aperture of feeding auger (11) connects loading hopper (10), the charging aperture of discharging opening connection crushing chamber (6); Pulverizing nozzle (9) places in the crushing chamber (6); Sealing gland (3) and classifying turbine (4) place in the classification chamber (2); It is characterized in that: on the inwall of the inwall of the inwall of the inwall of the inwall of loading hopper (10), feed pipe, crushing chamber (6), classification chamber (2) and loam cake (1), be equipped with ceramic-lined; Said charging augering screw, pulverizing nozzle (9), sealing gland (3) are ceramic material, and said classifying turbine (4) is for adopting the complete ceramic impeller of integral type of isostatic cool pressing manufactured.

2. the pollution-free fluidized bed air flow crusher of full pottery according to claim 1 is characterized in that: said sealing gland (3) is full ceramic capillary plate, and its aperture is less than 1mm.