CN113967521A - Energy-saving fluidized bed type jet mill - Google Patents
Energy-saving fluidized bed type jet mill Download PDFInfo
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- CN113967521A CN113967521A CN202111226444.3A CN202111226444A CN113967521A CN 113967521 A CN113967521 A CN 113967521A CN 202111226444 A CN202111226444 A CN 202111226444A CN 113967521 A CN113967521 A CN 113967521A
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- crushing
- flow guide
- fluidized bed
- bed type
- crushing cavity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/06—Jet mills
- B02C19/068—Jet mills of the fluidised-bed type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
- B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
Abstract
The invention relates to the technical field of fluidized bed type airflow crushing equipment, and provides an energy-saving fluidized bed type airflow crusher, which comprises a base; a first crushing cavity is arranged in the crushing cavity; the periphery of the rotating shaft is distributed on the axis of the base in an aligned manner, and a second crushing cavity is arranged in each circulating flap; the first crushing cavity is communicated with the second crushing cavity; a classifier disposed at an axis of the base; a horizontally arranged first crushing nozzle component is arranged in the first crushing cavity; a flow guide island is arranged in the second crushing cavity, the flow guide island and the circulating valve form a flow guide channel, and a second crushing nozzle assembly is arranged in an air inlet channel of the flow guide channel; the air outlet of the flow guide channel is arranged towards the working surface of the first crushing nozzle assembly; under the action of the second crushing nozzle assembly, the flow guide channel forms a circulating airflow along the air inlet channel, the air outlet and the first crushing cavity; the invention can efficiently crush materials, and has better energy-saving and environment-friendly effects compared with the traditional fluidized bed type airflow crushing equipment.
Description
Technical Field
The invention relates to the technical field of fluidized bed type airflow crushing equipment, in particular to an energy-saving fluidized bed type airflow crusher.
Background
The fluidized bed crusher mainly utilizes high jet speed airflow and collision of materials to crush the materials, and the materials are mainly ultrafine powder; the existing common equipment is of two types, one of which is as follows: a disk type air flow pulverizer is characterized in that the pulverizing areas formed between the upper cover and the lower cover (the distance between the upper cover and the lower cover is only 10-20 mm) and the middle ring are very narrow, so that powder added into the pulverizer is easy to hit by air flow; the second step is as follows: the fluidized bed collision type jet mill is characterized in that the structure is simple, a classifier is arranged in the jet mill, and the size of discharged materials can be controlled; meanwhile, there is a chinese patent with application number 200520073166.2, which discloses a circulating fluidized bed jet mill, which improves the milling efficiency and is provided with a classifier to control the output of the material.
The above fluidized bed type air jet mill has more or less the following problems: 1: because the air flow speed in the fluidized bed type airflow crushing equipment is high, all small materials which are not crushed can be driven by the high-speed air flow to be kept in the air, and the crushing efficiency of the whole equipment is reduced; 2: the whole material crushing trend is not clear, and the probability of the material entering a crushing position (a collision position of high-jet-speed airflow) again is very low, so that the crushing efficiency is very low; in summary, the inherent fluidized bed pulverizer requires a long time for pulverizing a product of a target size, resulting in high energy consumption of the equipment.
Disclosure of Invention
The invention aims to provide an energy-saving fluidized bed type jet mill, which is used for solving the problems.
The embodiment of the invention is realized by the following technical scheme: an energy-saving fluidized bed type jet mill comprises a base, wherein the base is a rotating body; a first crushing cavity is arranged inside the base; a feeder is arranged on the base; the circulating valves are distributed on the base in an array manner by taking the axis of the base as a rotating shaft circumference, and are in a half-peach-heart-shaped structure; a second crushing cavity is arranged inside the circulating valve; the first crushing cavity is communicated with the second crushing cavity; the classifier is arranged at the axis of the base and is arranged vertically, and fan blades of the classifier are arranged in the first crushing cavity; a horizontally arranged first crushing nozzle component is arranged in the first crushing cavity; a flow guide island is arranged in the second crushing cavity, the flow guide island and the circulating valve form a flow guide channel, and a second crushing nozzle assembly is arranged in an air inlet channel of the flow guide channel; the air outlet of the flow guide channel is arranged towards the working surface of the first crushing nozzle assembly; under the action of the second crushing nozzle assembly, the flow guide channel forms circulating airflow along the air inlet channel, the air outlet and the first crushing cavity.
Further, the circulation lamella is from last to down being constituteed by last arc board and lower straight board in proper order, the shell of grader is connected to the first end of going up the arc board, the second end of going up the arc board is connected to the first end of lower straight board, the base is connected to the second end of lower straight board, the water conservancy diversion island sets up between last arc board and lower straight board, the second crushing unit sets up under on the straight board, and the second crushing nozzle unit spare includes first nozzle and a plurality of second nozzle, the face setting of straight board is down followed to the injection direction of first nozzle, the injection direction of a plurality of second nozzles is alpha angle setting with the face of straight board down, 30 < alpha < 90.
Further, the diversion island comprises an inclined plane and a curved surface, the inclined plane is close to the lower straight plate and is not parallel to the plate surface of the lower straight plate, and the curved surface is similar to the radian of the upper arc plate and is close to the upper arc plate; the spraying directions of the plurality of second nozzles are arranged towards the inclined plane.
Further, the distance between the inclined plane and the lower straight plate is reduced from the first nozzle to the second nozzle in sequence.
Further, first crushing intracavity is equipped with supplementary cowl, and supplementary cowl sets up on the export extension line of water conservancy diversion passageway, and supplementary cowl's area along vertical projection direction is less than the exit area of water conservancy diversion passageway, and supplementary cowl sets up between water conservancy diversion island and first crushing chamber.
Furthermore, the device is also provided with a material stopping plate which is arranged on the curved surface and is distributed far away from the classifier; the horizontal distance between the material blocking plate and the highest point of the curved surface is larger than one half of the distance between the curved surface and the upper cambered surface, and the height of the material blocking plate is smaller than one half of the distance between the curved surface and the upper cambered surface.
Furthermore, the material stopping plate is a curved plate and is obliquely arranged towards the classifier.
Further, still be equipped with collection assembly, collection assembly includes: the impeller is hinged on the flow guide island and rotates along with the airflow at the air outlet of the flow guide channel; the collecting cavity is arranged inside the flow guide island; and a collecting groove is arranged in the collecting cavity; the rotary cover is fully wrapped on the collecting tank and rotates along the collecting tank, and a rotating shaft of the impeller is in transmission connection with the rotary cover through a belt; a first through hole is formed in a local position of the rotary cover, a second through hole is formed in the flow guide island, and the second through hole is formed between the material blocking plate and the curved surface; in the rotation period of the rotary cover, the first through hole and the second through hole are communicated discontinuously; the waste material is got the material subassembly, and it sets up in the outside of circulation lamella that the waste material is got the material subassembly, and the setting of intercommunication collection chamber.
Furthermore, the first crushing nozzle component is a plurality of third nozzles which are circumferentially distributed in an array by taking the base rotating shaft as an axis, the third nozzles and the cavity wall of the first crushing cavity form a beta angle, and the beta is more than 15 degrees and less than 90 degrees.
The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:
1: having a plurality of pulverization processes; the first method comprises the following steps: a pulverizing process of the first pulverizing nozzle assembly in the first pulverizing chamber; the second step is that: the interaction between the second crushing nozzle assemblies is used for crushing the materials; thirdly, the method comprises the following steps: a crushing process that the second crushing nozzle assembly blows the materials onto the flow guide island; the pulverization effect is improved through a plurality of pulverization processes.
2: utilize the circulation lamella of peach heart form structure, make the fall back point of material in first crushing intracavity, ensure crushing effect.
3: the backflow channel formed by the circulating valve reduces the disordered state space of the materials and improves the crushing effect.
4: multiple means are combined to improve the crushing efficiency, and meanwhile, the energy consumption of equipment is greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic top view of an energy-saving fluidized bed type jet mill according to the present invention;
FIG. 2 is a schematic cross-sectional view of an energy-saving fluidized bed type jet mill according to the present invention;
FIG. 3 is a schematic structural diagram of a first pulverizing assembly of the energy-saving fluidized bed type jet mill provided by the embodiment of the invention;
FIG. 4 is a schematic structural diagram of a collecting assembly of the energy-saving fluidized bed type jet mill according to the embodiment of the present invention;
FIG. 5 is a schematic structural view of a belt drive connection in the energy-saving fluidized bed type jet mill according to the present invention;
icon: 1-base, 2-circulation flap, 3-classifier, 11-feeder, 12-first crushing cavity, 121-second crushing cavity, 13-first crushing nozzle component, 131-third nozzle, 21-upper arc plate, 22-lower straight plate, 23-guide island, 24-guide channel, 25-first nozzle, 26-second nozzle, 31-fan blade of classifier, 32-discharge pipe of classifier, 231-curved surface, 232-inclined surface, 51-baffle plate, 52-second through hole, 111-auxiliary arc baffle plate, 53-first through hole, 54-collection cavity, 55-impeller, 56-belt, 57-rotary cover and 571-collection groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the terms are only used for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
As shown in fig. 1 and 2, an energy-saving fluidized bed type jet mill comprises a base 1 and a plurality of circulation flaps 2 which are distributed on the base 1 in an aligned manner around the axis of the base 1 as a rotation axis, specifically, in the embodiment, 4 circulation flaps 2 are provided, the purpose of multiple times of milling is realized by the cooperation of the circulation flaps 2 and the base 1, and meanwhile, a diversion channel 24 is formed, so that the milling efficiency is improved; the concrete structure is as follows:
the base 1 is a rotating body; a first crushing cavity 12 is arranged inside the base 1, and the first crushing cavity 12 is also a rotating body; a feeder 11 is arranged on the base 1; the position of the feeder 11 is not limited and a conventional energy-saving fluidized bed type jet mill can be adopted,
the circulating valve 2 is in a half-peach-heart-shaped structure; a second crushing cavity 121 is arranged inside the circulating valve 2; the first crushing cavity 12 is communicated with the second crushing cavity 121; in the present embodiment, 4 circulation flaps 2 are provided in communication with the second pulverizing chamber 121 and the first pulverizing chamber 12 in the base 1.
The classifier 3 is arranged at the axis of the base 1, the classifier 3 is vertically arranged, and fan blades of the classifier 3 are arranged in the first crushing cavity 12, namely in the first crushing cavity 12 and the 4 second crushing cavities 121; it should be noted that, the classifier 3 also adopts the prior art, but the purpose of vertical setting is for making it contact 4 second crushing cavities 121 better, reaches the effect of unified row of material.
A horizontally arranged first crushing nozzle assembly 13 is arranged in the first crushing cavity 12; the first crushing effect is achieved by the first crushing nozzle assembly 13, specifically, as shown in fig. 3, the first crushing nozzle assembly 13 is a plurality of third nozzles 131 which are circumferentially distributed in an aligned manner by taking the rotating shaft of the base 1 as an axis, the third nozzles 131 form an angle β with the wall of the first crushing chamber 12, the angle β is more than 15 degrees and less than 90 degrees, and further, the color spraying angle of the plurality of third nozzles 131 is set between the classifier 3 and the base 1.
A flow guide island 23 is arranged in the second crushing cavity 121, the flow guide island 23 and the circulation valve 2 form a flow guide channel 24, and a second crushing nozzle assembly is arranged in an air inlet channel of the flow guide channel 24; the air outlet of the flow guide channel 24 is arranged towards the working surface of the first crushing nozzle assembly 13; under the action of the second pulverizing nozzle assembly, the flow guide channel 24 forms a circulating air flow along the air inlet channel, the air outlet and the first pulverizing chamber 12; a flow guide channel 24 is formed by the structures of the flow guide island 23 and the circulating valve 2, and the reduction of the invalid crushing space of the materials is completed by the flow guide channel 24; specifically, the method comprises the following steps: each circulation lobe 2 is sequentially composed of an upper arc plate 21 and a lower straight plate 22 from top to bottom, the first end of the upper arc plate 21 is connected with the shell of the classifier 3, the first end of the lower straight plate 22 is connected with the second end of the upper arc plate 21, the second end of the lower straight plate 22 is connected with the base 1, the flow guide island 23 is arranged between the upper arc plate 21 and the lower straight plate 22, the second crushing assembly is arranged on the lower straight plate 22 and comprises a first nozzle 25 and a plurality of second nozzles 26, the spraying direction of the first nozzle 25 is arranged along the plate surface of the lower straight plate 22, the spraying directions of the second nozzles 26 and the plate surface of the lower straight plate 22 are arranged in an alpha angle, and alpha is more than 30 degrees and less than 90 degrees; through the above arrangement, a second crushing process and a third crushing process are constructed, specifically, the impact of the second nozzles 26 and the diversion islands 23 constitutes the third crushing process, the impact of the first nozzles 25 and the second nozzles 26 constitutes the second crushing process, and the upper arc plate 21 is used for changing the direction of the air flow so as to bring animal materials into the working range of the first crushing nozzle assembly 13.
Further, in order to make the diversion island 23 meet the above-mentioned requirement, in some implementations, the diversion island 23 includes an inclined surface 232 and a curved surface 231, the inclined surface 232 is disposed near the lower straight plate 22 and is not parallel to the plate surface of the lower straight plate 22, and the curved surface 231 has a similar arc to the upper arc plate 21 and is disposed near the upper arc plate 21; the spraying directions of the plurality of second nozzles 26 are arranged towards the inclined plane 232, that is, the second nozzles 26 impact the inclined plane 232 to complete the purpose of secondary crushing, and the design of the flow guide channel 24 is further completed by the cooperation of the curved surface 231 and the upper arc plate 21; preferably, the distance from the inclined plane 232 to the lower straight plate 22 decreases from the first nozzle 25 to the second nozzle 26; the flow rate of the gas is increased and the probability of collision thereof is increased by changing the unit area, and at the same time, the fourth pulverizing process can be performed by the cooperation between the first nozzle 25 and the inclined surface 232.
The whole process is as follows: firstly, materials are added into a first crushing cavity 12 through a feeder 11, then the first crushing nozzle assembly 13 in the first crushing cavity 12 is utilized to complete the first crushing of the initial materials, after the materials are crushed, particles are reduced and simultaneously washed up, then a first nozzle 25 in a second crushing nozzle assembly is sucked into a flow guide channel 24 to carry out the second, third or even fourth crushing, the crushed materials are fallen into a working space in the first crushing cavity 12 again through an arc-shaped flow guide channel 24 between an upper guard plate and a curved surface 231, some large materials enter a working area of the first crushing nozzle assembly 13 again to be crushed, and the smaller materials are withdrawn and removed by a classifier 3, wherein, because the air outlet flow of an air outlet of the flow guide channel 24 is arranged downwards, and the air flow in the flow guide channel 24 runs in one direction all the time, therefore, the material is inevitably impacted downwards, because the inertia and the self weight of different material particles are different, the effect of automatic separation can be achieved, the requirement that large particles are continuously crushed for the first, second, third and fourth times is met, small particles are removed by the classifier 3, further, an auxiliary arc-shaped baffle plate 111 is arranged in the first crushing cavity 12, the auxiliary arc-shaped baffle plate 111 is arranged on the outlet extension line of the flow guide channel 24, the area of the auxiliary arc-shaped baffle plate 111 along the vertical projection direction is smaller than the outlet area of the flow guide channel 24, the auxiliary arc-shaped baffle plate 111 is arranged between the flow guide island 23 and the first crushing cavity 12, as shown in the figure, the auxiliary arc-shaped baffle plate 111 is also an arc-shaped plate, the purpose of material separation is assisted by the arrangement of the arc-shaped baffle plate, specifically, after the material is removed downwards from the air outlet of the flow guide port, the material moves downwards and moves towards the working face of the first crushing nozzle component 13, at this time, because of the existence of the auxiliary arc-shaped baffle 111, the upward airflow of the first crushing nozzle assembly 13 can be isolated, the falling efficiency of the material is accelerated, so that the material falls on the auxiliary arc-shaped baffle 111, the self weight and inertia are different, and the smaller material can be adsorbed into the flow guide channel 24 by the first nozzle 25 to be crushed until the smaller material is absorbed by the fan blades of the classifier 3 after one period around the flow guide channel 24, and then the smaller material is discharged from the discharge pipe of the classifier 3; the great material can oneself drop to first crushing space in, carries out the crushing process for the first time, compares in less material, has carried out the crushing process of once more, makes the content of the material particulate matter that meets the requirements in the finished product improve.
Under some working conditions, impurities exist in the material, the hardness of all the impurities is far greater than that of the material, and in addition, all the bonding blocks exist in the material, so that the material is not easy to break; when the two substances enter the fluidized bed type airflow crushing equipment and are excessively collided with the materials, the phenomenon of excessively crushing the materials is caused, the materials with fixed particle sizes are output, and the proportion of the materials with 50-1000 meshes is lowered; for this reason, in order to filter out these impurities and avoid over-crushing of the material and the material during its movement, in this embodiment, as shown in fig. 5 and 6, a material stopping plate 51 is further provided, and the material stopping plate 51 is disposed on the curved surface 231 and distributed away from the classifier 3; the horizontal distance between the material blocking plate 51 and the highest point of the curved surface 231 is greater than one half of the distance between the curved surface 231 and the upper arc surface, and the height of the material blocking plate 51 is less than one half of the distance between the curved surface 231 and the upper arc surface; through the above process, it can be known that, originally, when the material blocking plate 51 is not provided, the air flow velocity in the arc-shaped channel between the upper arc plate 21 and the curved surface 231 is consistent, after the material blocking plate 51 is provided, because the air flow after the material blocking plate 51 exists in the material blocking plate 51 is slower, a vortex is formed behind the material blocking plate 51 due to the speed difference of different air flows, at this time, a larger material is collected behind the material blocking plate 51 due to the vortex, and certainly, some small-particle materials are collected behind the material blocking plate 51, at this time, because the material blocking plate 51 is arranged at the side of the highest point of the curved surface 231, if the materials are to be removed from the vortex point, that is, the collection point, along with the gas with a weak flow velocity, the height difference between the curved surface 231 and the collection point needs to be overcome, at this time, because the smaller-particle materials are lighter in weight, they are preferably removed, larger particles of material (cohesive material) will remain there; it should be noted that the initial material undergoes a primary screening before entering the energy-saving fluidized bed type jet mill to ensure that the particle sizes are basically consistent, and at this time, the particle sizes of the impurities (with high hardness) are consistent with those of the initial material, so that the impurities are still large and heavy after being crushed in one cycle; at this time, the impurities are collected at the vortex of the baffle plate 51 as well; further, the material blocking plate 51 is a curved surface 231 plate, and the material blocking plate 51 is obliquely arranged towards the classifier 3; the area of the detaining area is increased while reducing the loss of the air flow by means of the inclined baffle plate 51.
For the impurities left behind the material stopping plate 51, in this embodiment, the impurities can be taken out by opening the box and taking the materials, or by the following method, specifically, for example: a collection assembly comprising: impeller 55, collection chamber 54, rotating cover 57, waste material take-out assembly; the impeller 55 is hinged on the flow guide island 23, and the impeller 55 rotates along with the airflow at the air outlet of the flow guide channel 24; collection chamber 54 is disposed inside flow island 23; a collecting tank 571 is arranged in the collecting cavity 54; the rotary cover 57 completely wraps the collecting tank 571 and rotates along the collecting tank 571, and a rotating shaft of the impeller 55 is in transmission connection with the rotary cover 57 through a belt 56; a first through hole 53 is formed in a local position of the rotating cover 57, a second through hole 52 is formed in the flow guide island 23, and the second through hole 52 is formed between the material blocking plate 51 and the curved surface 231; the first through-holes 53 and the second through-holes 52 are intermittently communicated during a rotation period of the rotary cover 57; in the whole using process, the impeller 55 is driven to rotate by the airflow, and the impeller 55, the wheel shaft and the rotating cover 57 have large diameter difference, so that the rotating cover 57 is driven to rotate after the wheel shaft of the impeller 55 rotates for multiple circles, and it should be emphasized that balls can be arranged between the rotating cover 57 and the collecting tank 571 to form a bearing-like shape, and the openings of the rollers and the collecting tank 571 can be arranged in a staggered manner; the implementation of the above-described structure by one of ordinary skill in the art is not overly descriptive herein for routine operation; through the rotation of rotatory lid 57, realize the intercommunication between first through-hole 53 and the second through-hole 52 or not communicate, when the intercommunication, impurity can fall into the collecting vat 571 because of atmospheric pressure and dead weight reason, accomplish collection work, in addition, the waste material is got the outside that the material subassembly set up at circulation lamella 2, and the setting of chamber 54 is collected in the intercommunication, the manual work through the untimely waste material of opening get the material subassembly accomplish to impurity take out can, the waste material is got the material subassembly can set up to an opening that has the door can, adopt prior art to accomplish.
Finally, it should be noted that the air sources connected to the first nozzle 25, the second nozzle 26 and the third nozzle 131 are not shown in the drawings of the present embodiment, and the specific structures thereof all adopt the existing ones, and in the present embodiment, only the orientation thereof is limited.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an energy-conserving fluidized bed formula fluid energy mill which characterized in that: comprises that
The base (1), the said base (1) is a body of revolution; a first crushing cavity (12) is arranged inside the base (1); a feeder (11) is arranged on the base (1);
the circulating valves (2) are distributed on the base (1) in an array manner by taking the axis of the base (1) as a rotating shaft circumference, and the circulating valves (2) are of a half-peach-heart-shaped structure; a second crushing cavity (121) is arranged inside the circulating valve (2); the first crushing cavity (12) and the second crushing cavity (121) are communicated;
the classifier (3) is arranged at the axis of the base (1), the classifier (3) is vertically arranged, and fan blades of the classifier (3) are arranged in the first crushing cavity (12);
a first crushing nozzle assembly (13) which is horizontally arranged is arranged in the first crushing cavity (12);
a flow guide island (23) is arranged in the second crushing cavity (121), the flow guide island (23) and the circulating valve (2) form a flow guide channel (24), and a second crushing nozzle assembly is arranged in an air inlet channel of the flow guide channel (24); the air outlet of the flow guide channel (24) is arranged towards the working surface of the first crushing nozzle assembly (13); under the action of the second crushing nozzle assembly, the flow guide channel (24) forms a circulating air flow along the air inlet channel, the air outlet and the first crushing cavity (12).
2. The energy saving fluidized bed type jet mill according to claim 1, characterized in that: circulation lamella (2) are from last to being formed by last arc board (21) and lower straight board (22) down in proper order, the first end of going up arc board (21) is connected the shell of classificator (3), the first end of lower straight board (22) is connected go up the second end of arc board (21), the second end of lower straight board (22) is connected base (1), water conservancy diversion island (23) set up at last arc board (21) and under between straight board (22), the subassembly setting is smashed to the second is in under on straight board (22), just the nozzle subassembly is smashed to the second includes first nozzle (25) and a plurality of second nozzle (26), the injection direction of first nozzle is followed the face setting of lower straight board (22), and is a plurality of the injection direction of second nozzle with the face of lower straight board (22) is alpha angle setting, and alpha < 90 is more than 30.
3. The energy saving fluidized bed type jet mill according to claim 2, characterized in that: the flow guiding island (23) comprises an inclined surface (232) and a curved surface (231), the inclined surface (232) is close to the lower straight plate (22) and is not parallel to the plate surface of the lower straight plate (22), and the curved surface (231) has a similar radian with the upper arc plate (21) and is close to the upper arc plate (21); the spraying directions of a plurality of second nozzles are arranged towards the inclined plane (232).
4. The energy saving fluidized bed type jet mill according to claim 3, characterized in that: the distance between the inclined plane (232) and the lower straight plate (22) is reduced from the first nozzle to the second nozzle in sequence.
5. The energy saving fluidized bed type jet mill according to claim 3, characterized in that: be equipped with supplementary cowl (111) in first crushing chamber (12), supplementary cowl (111) set up on the export extension line of water conservancy diversion passageway (24), just the area along vertical projection direction of supplementary cowl (111) is less than the exit area of water conservancy diversion passageway (24), supplementary cowl (111) set up between water conservancy diversion island (23) and first crushing chamber (12).
6. The energy saving fluidized bed type jet mill according to claim 3, characterized in that: the classifier is also provided with a material blocking plate (51), and the material blocking plate (51) is arranged on the curved surface (231) and is distributed far away from the classifier (3); the horizontal distance between the material blocking plate (51) and the highest point of the curved surface (231) is larger than one half of the distance between the curved surface (231) and the upper arc surface, and the height of the material blocking plate (51) is smaller than one half of the distance between the curved surface (231) and the upper arc surface.
7. The energy saving fluidized bed type jet mill according to claim 6, characterized in that: the material blocking plate (51) is a curved surface (231) plate, and the material blocking plate (51) is obliquely arranged towards the classifier (3).
8. The energy saving fluidized bed type jet mill according to claim 7, characterized in that: still be equipped with and collect the subassembly, it includes to collect the subassembly:
the impeller (55) is hinged on the diversion island (23) and the impeller (55) rotates along with the airflow at the air outlet of the diversion channel (24);
a collection chamber (54), the collection chamber (54) being disposed inside the flow-directing island (23); and a collecting tank (571) is arranged in the collecting cavity (54);
the rotary cover (57) completely wraps the collecting tank (571) and rotates along the collecting tank (571), and a rotating shaft of the impeller (55) is in transmission connection with the rotary cover (57) through a belt (56);
a first through hole (53) is formed in a local position of the rotating cover (57), a second through hole (52) is formed in the flow guide island (23), and the second through hole (52) is formed between the material stopping plate (51) and the curved surface (231); the first through hole (53) and the second through hole (52) are intermittently communicated during a rotation period of the rotary cover (57);
the waste material taking assembly is arranged on the outer side of the circulating valve (2) and communicated with the collecting cavity (54).
9. The energy saving fluidized bed type jet mill according to claim 1, characterized in that: the first crushing nozzle assembly (13) is a plurality of third nozzles (131) which are circumferentially distributed in an array by taking a rotating shaft of the base (1) as an axis, the third nozzles (131) and the cavity wall of the first crushing cavity (12) form a beta angle, and the beta is more than 15 degrees and less than 90 degrees.
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