CN102836766A - Circulating type jet mill and milling system thereof - Google Patents
Circulating type jet mill and milling system thereof Download PDFInfo
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- CN102836766A CN102836766A CN 201210299857 CN201210299857A CN102836766A CN 102836766 A CN102836766 A CN 102836766A CN 201210299857 CN201210299857 CN 201210299857 CN 201210299857 A CN201210299857 A CN 201210299857A CN 102836766 A CN102836766 A CN 102836766A
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- disintegrating mill
- airslide disintegrating
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Abstract
The invention relates to a milling device and system, specifically relates to a circulating type jet mill with convenience in use, high classifying precision and good milling effect, and relates to a milling system matched with the circulating type jet mill. The circulating type jet mill provided by the invention comprises a frame (1), a milling chamber (2) and a compressing air reservoir (3), wherein the milling chamber (2) is arranged on the frame (1); the compressing air reservoir (3) is connected with the lower part of the milling chamber (2); the milling chamber (2) is of annular oval shape; a classifying device is arranged on the upper part of the milling chamber (2); a feeding port (4) and a plurality of milling nozzles (5) are arranged on the lower part of the milling chamber (2); air inlet ends of the milling nozzles (5) are communicated with the compressing air reservoir (3); and air outlet ends of the milling nozzles (5) are respectively in tangential connection with the circles on the lower part of the milling chamber (2). The milling system provided by the invention comprises any circulating type jet mill, a product separating device and an air compressor (14), wherein the product separating device is connected with the outlet end of the classifying device and the air compressor (14) is connected with the compressing air reservoir (3).
Description
Technical field
The present invention relates to a kind of disintegrating apparatus and system, be specially a kind of circulating airslide disintegrating mill and crushing system thereof.
Background technology
Powder technology is counted as supports one of most important basic technology of high-tech industry, and raw material and goods that the demand for development of modern project technology is the powder state have thin and uniform grain sizes and alap pollution level.After the grain graininess refinement, specific area increases, and can all show good performance like aspects such as filler, dyestuff, pigment, medicine, catalyst, magnetic memory cell, senior abrasive material, kollag, fine ceramics, cosmetics in various occasions.Under the stimulation of industrial requirement, the retrofit technology of powder has had bigger progress in recent years.The main method that obtains superfine powder is to begin from the solid material crushing and grinding, is aided with Super-fine Classification Technology and makes it to reach the various requirement to superfine powder.This is the industrial process of a high energy consumption, and along with the demand increase of all kinds of superfine powders, relevant departments are all in research various ultra-fine grinding equipment, method and theory, to satisfy the requirement of industrial quarters both at home and abroad.
The obvious characteristics of ultra-fine ultrafine powder is that proportion is light especially; Its proportion has only the part of coarse grain powder proportion; This characteristic is easy to by carried away by air movement it in pulverizer; It is very low to make it rest on the probability of being pulverized by gas shock before the pulverizing nozzle, and therefore, the air-flow crushed zone has the conventional airslide disintegrating mill in broad space low especially to its crush efficiency.In recent ten years; Being applied to superfine powder the most frequently used in pulverize producing is disc type airslide disintegrating mill and fluid bed collision type airslide disintegrating mill; The characteristics of disc type type are that the crushed zone that forms between their covers and the centre circle is all very narrow; Make the powder that adds in the pulverizer be easy to hit by air-flow, fluid bed collision type formula has higher crush efficiency relatively.But in very little crushed zone, will reach good grading effect to ultrafine powder is difficult to; In order to control coarse granule, it is evenly reinforced to have at leisure, controls the concentration of pulverizing material in the cavity well; Make the pulverizing airflow field stable; To reach grading effect, so PR was lower when this multigraph press was pulverized superfine powder.The raw material that has because hardness is bigger, when pulverizing these materials, is just lost control of bulky grain, pulverizes several times more and can cause pulverizing again, and meticulous particle is too many.Fluid bed collision type airslide disintegrating mill characteristics are; Its top is that the classifying turbine that has the Frequency Converter Control rotary speed is used for controlling the powder coarse granule; During its grinding and processing superfine powder, do not receive the influence of raw material hardness property, can control the powder granule upper limit well.But,, in pulverizer, be easy to flown by the air-flow band because ultrafine powder proportion is light especially; In the pulverizing cavity of large space; It is very low that powder rests on the probability of being pulverized by gas shock before the head-on collision nozzle, and therefore, efficient is not high during this type grinding and processing superfine powder.
Summary of the invention
The object of the present invention is to provide a kind of easy to usely, effectiveness of classification is high, the circulating airslide disintegrating mill of good crushing effect, and a kind of crushing system that matches with it.
The circulating airslide disintegrating mill of the present invention; Comprise frame 1, be arranged on the pulverizing chamber 2 on the frame 1, connect the compression air storage chamber 3 that is arranged on pulverizing chamber 2 bottoms; It is characterized in that; Described pulverizing chamber 2 is Long Circle in the form of a ring, and top is provided with grading plant, and the bottom is provided with charging aperture 4 and some grinding nozzles 5; The inlet end that grinds nozzle 5 is communicated with compression air storage chamber 3, and the outlet side is connected the tangential with pulverizing chamber 2 bottom annulus respectively successively.
Further, be provided with reinforced jet pipe 6 between described charging aperture 4 and the pulverizing chamber 2, the arrival end of reinforced jet pipe 6 is provided with accelerating jet 7, and accelerating jet 7 is communicated with compression air storage chamber 3.
Further, described grading plant comprises the grading wheel 8 of venetian blind type, support 9 and discharge nozzle 10; Grading wheel 8 is arranged on pulverizes chamber 2 top circle ring center, is connected on the support 9 through bearing, and the middle part discharging opening is connected with discharge nozzle 10.
Further, described compression air storage chamber 3 is connected to form one with pulverizing chamber 2, and a side is provided with compressed air inlet 11, and opposite side is provided with step-down mouth 12, and the bottom is provided with discharge outlet 13.
The circulating airslide disintegrating mill crushing system of the present invention; Comprise above-described any one circulating airslide disintegrating mill; It is characterized in that, also comprise the product separator that is connected with the grading plant port of export, and be connected the air compressor 14 on the compression air storage chamber 3.
Further, described circulating airslide disintegrating mill crushing system also comprises the Vibration Storage bin 15 that is arranged on the charging aperture 4.
Further, described circulating airslide disintegrating mill crushing system also comprises the cooler 16 that is successively set between air compressor 14 and the compression air storage chamber 3, air accumulator 17 and refrigerant type dryer 18.
Further, described product separator comprises the cyclone separator 19 that is connected to the grading plant port of export in turn, trap 20 and centrifugal blower 21.
The circulating airslide disintegrating mill of the present invention is arranged to Long Circle through pulverizing chamber 2, thereby makes separating that the stepped zone on crushed zone and top of bottom can be relative, and forms circulating classification simultaneously, has avoided crossing crushing phenomenon; But also because the separating of crushed zone and stepped zone, so the concentration of the powder of crushed zone improves greatly, from separator, discharges smoothly after rising to stepped zone with air-flow; Utilize the reinforced jet pipe 6 of setting on the charging aperture 4 to make material before getting into pulverizer, just have certain speed, and make material can collide the completion pulverizing fully through the acceleration step by step of grinding nozzle 5 one by one; With circulating airslide disintegrating mill is the crushing system of core, to the compressed air hydrofuge of lowering the temperature, has guaranteed the stable of material properties, and the product after producing is carried out twice separation, and utilization of materials is high, and output is big, and speed is fast; Its beneficial effect is that reasonable in design, simple in structure, pulverizing is even, and classification is quick, uses simply, and system configuration is reasonable, and the product output capacity is high, does not change the material proterties.
Description of drawings
Fig. 1 is the structural representation of the circulating pulverizer described in the instance of the present invention.
Fig. 2 is the circulating pulverizer crushing system equipment flowsheet described in the instance of the present invention.
Among the figure: frame 1, pulverize chamber 2, compression air storage chamber 3, charging aperture 4 grinds nozzle 5, reinforced jet pipe 6; Accelerating jet 7, grading wheel 8, support 9, discharge nozzle 10, support 9, discharge nozzle 10; Compressed air inlet 11, step-down mouth 12, discharge outlet 13, air compressor 14, Vibration Storage bin 15, cooler 16; Air accumulator 17, refrigerant type dryer 18, cyclone separator 19, trap 20, centrifugal blower 21.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
The circulating airslide disintegrating mill of the present invention, as shown in Figure 1, it comprises frame 1; Be arranged on the pulverizing chamber 2 on the frame 1; Connect the compression air storage chamber 3 that is arranged on pulverizing chamber 2 bottoms, wherein, pulverize chamber 2 Long Circle in the form of a ring; Promptly two ends are respectively annular semicylinder up and down, and the centre is formed by connecting cuboid respectively; Top pulverizing chamber 2 is provided with grading plant, and the bottom is provided with charging aperture 4 and some grinding nozzles 5; The inlet end that grinds nozzle 5 is communicated with compression air storage chamber 3, the outlet side respectively with pulverize chamber 2 bottom annulus and be connected the tangential successively, can be to the material of entering pulverizer quickening step by step, the repeatedly collision between the realization material is pulverized fully and is ground.
Wherein, as shown in Figure 1, between charging aperture 4 and pulverizing chamber 2, be provided with reinforced jet pipe 6; The arrival end of reinforced jet pipe 6 is provided with accelerating jet 7; Accelerating jet 7 is communicated with compression air storage chamber 3, makes material when getting into pulverizing chamber 2, just obtain initial velocity, utilizes the entering of material on the one hand; Can make pulverizing more abundant on the one hand, can also collide pulverizing with residual material after the classification simultaneously.
Wherein, As shown in Figure 1, grading plant comprises the grading wheel 8 that is arranged on the venetian blind type of pulverizing chamber 2 top circle ring center, is used for through bearing grading wheel 8 support 9 that supports and the discharge nozzle 10 that is connected on the discharging opening of middle part; Simple in structure, classification is quick.
Wherein, as shown in the figure, compression air storage chamber 3 is connected to form one with pulverizing chamber 2, and a side is provided with compressed air inlet 11, and opposite side is provided with step-down mouth 12, and the bottom is provided with discharge outlet 13, is beneficial to the regulation and control and inner cleaning of pressure.
The invention still further relates to circulating airslide disintegrating mill crushing system, comprise above-described circulating airslide disintegrating mill, as shown in Figure 2, also comprise the product separator that is connected with the grading plant port of export simultaneously, thereby material is separated from high velocity air; And be connected the air compressor 14 on the compression air storage chamber 3, the condition of necessity is provided for the work of pulverizer.
Wherein, as shown in Figure 2, circulating airslide disintegrating mill crushing system also comprises the Vibration Storage bin 15 that is arranged on the charging aperture 4, realizes auto feed, convenient control and use; Be successively set on the cooler 16 between air compressor 14 and the compression air storage chamber 3; Air accumulator 17 and refrigerant type dryer 18; Compressed air is lowered the temperature and the processing that separates draining, be beneficial to the base attribute that guarantees material, guarantee that through air accumulator 17 compressed air can have enough supplies simultaneously.Wherein, The product separator comprises the cyclone separator 19 that is connected to the grading plant port of export in turn, and trap 20 and centrifugal blower 21 are under the guiding function of centrifugal blower 21; Material obtains earlier separating from cyclone separator 19; In trap 20, further catch separation then again, improved the output of material greatly, reduced the discharging of dust simultaneously.
Claims (8)
1. circulating airslide disintegrating mill; Comprise frame (1), be arranged on the pulverizing chamber (2) on the frame (1), connect the compression air storage chamber (3) that is arranged on pulverizing chamber (2) bottom; It is characterized in that; Described pulverizing chamber (2) is Long Circle in the form of a ring, and top is provided with grading plant, and the bottom is provided with charging aperture (4) and some grinding nozzles (5); The inlet end that grinds nozzle (5) is communicated with compression air storage chamber (3), and the outlet side is connected the tangential with pulverizing chamber (2) bottom annulus respectively successively.
2. circulating airslide disintegrating mill as claimed in claim 1; It is characterized in that; Be provided with reinforced jet pipe (6) between described charging aperture (4) and the pulverizing chamber (2); The arrival end of reinforced jet pipe (6) is provided with accelerating jet (7), and accelerating jet (7) is communicated with compression air storage chamber (3).
3. according to claim 1 or claim 2 circulating airslide disintegrating mill is characterized in that described grading plant comprises the grading wheel (8) of venetian blind type, support (9) and discharge nozzle (10); Grading wheel (8) is arranged on pulverizes chamber (2) top circle ring center, is connected on the support (9) through bearing, and the middle part discharging opening is connected with discharge nozzle (10).
4. according to claim 1 or claim 2 circulating airslide disintegrating mill; It is characterized in that described compression air storage chamber (3) is connected to form one with pulverizing chamber (2), a side is provided with compressed air inlet (11); Opposite side is provided with step-down mouth (12), and the bottom is provided with discharge outlet (13).
5. circulating airslide disintegrating mill crushing system; Comprise like any described circulating airslide disintegrating mill in the claim 1 to 4; It is characterized in that, also comprise the product separator that is connected with the grading plant port of export, and be connected the air compressor (14) on the compression air storage chamber (3).
6. circulating airslide disintegrating mill as claimed in claim 5 is characterized in that, described circulating airslide disintegrating mill crushing system also comprises the Vibration Storage bin (15) that is arranged on the charging aperture (4).
7. circulating airslide disintegrating mill as claimed in claim 5; It is characterized in that; Described circulating airslide disintegrating mill crushing system; Also comprise the cooler (16), air accumulator (17) and the refrigerant type dryer (18) that are successively set between air compressor (14) and the compression air storage chamber (3).
8. circulating airslide disintegrating mill as claimed in claim 5 is characterized in that, described product separator comprises the cyclone separator (19) that is connected to the grading plant port of export in turn, trap (20) and centrifugal blower (21).
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CN 201210299857 CN102836766A (en) | 2012-08-22 | 2012-08-22 | Circulating type jet mill and milling system thereof |
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CN 201210299857 CN102836766A (en) | 2012-08-22 | 2012-08-22 | Circulating type jet mill and milling system thereof |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103657891A (en) * | 2013-12-09 | 2014-03-26 | 成都科盛石油科技有限公司 | Equipment capable of multiple screening |
CN104473114A (en) * | 2014-11-19 | 2015-04-01 | 虞文娟 | Making equipment for spices |
CN111495546A (en) * | 2020-04-17 | 2020-08-07 | 河南理工大学 | Grinding and crushing device and method for rotary fluidized bed |
CN113967521A (en) * | 2021-10-21 | 2022-01-25 | 四川瑞驰拓维机械制造有限公司 | Energy-saving fluidized bed type jet mill |
-
2012
- 2012-08-22 CN CN 201210299857 patent/CN102836766A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103657891A (en) * | 2013-12-09 | 2014-03-26 | 成都科盛石油科技有限公司 | Equipment capable of multiple screening |
CN104473114A (en) * | 2014-11-19 | 2015-04-01 | 虞文娟 | Making equipment for spices |
CN111495546A (en) * | 2020-04-17 | 2020-08-07 | 河南理工大学 | Grinding and crushing device and method for rotary fluidized bed |
CN111495546B (en) * | 2020-04-17 | 2021-12-10 | 河南理工大学 | Grinding and crushing device and method for rotary fluidized bed |
CN113967521A (en) * | 2021-10-21 | 2022-01-25 | 四川瑞驰拓维机械制造有限公司 | Energy-saving fluidized bed type jet mill |
CN113967521B (en) * | 2021-10-21 | 2022-05-27 | 四川瑞驰拓维机械制造有限公司 | Energy-saving fluidized bed type jet mill |
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Application publication date: 20121226 |