CN217797393U - Winnowing device and grinding and screening device - Google Patents
Winnowing device and grinding and screening device Download PDFInfo
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- CN217797393U CN217797393U CN202222193744.2U CN202222193744U CN217797393U CN 217797393 U CN217797393 U CN 217797393U CN 202222193744 U CN202222193744 U CN 202222193744U CN 217797393 U CN217797393 U CN 217797393U
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Abstract
The utility model relates to a secondary aluminium ash field of handling, concretely relates to wind selector, mill sieve device. The winnowing device comprises a cylinder, a driving device and a supporting frame for supporting the cylinder; the driving device is arranged on the cylinder body, the cylinder body is provided with an airflow grading chamber and a material settling chamber, and the airflow grading chamber is communicated with the material settling chamber; the cylinder body is also provided with a material inlet for inputting materials and an air inlet for introducing air, and the material inlet and the air inlet are both communicated with the cylinder body; the air flow grading chamber is internally provided with an air flow grading wheel for screening the material with the particle size, the cylinder body is provided with a material outlet, and the material screened by the air flow grading wheel is discharged from the material outlet; the airflow grading wheel is driven by a driving device to form rotating airflow which stably rises along the cylinder. The material fineness is separated by adopting the rotary air flow, so that the material can completely reach the grain size meeting the requirement.
Description
Technical Field
The utility model relates to a secondary aluminium ash field of handling, concretely relates to wind selector, mill sieve device.
Background
The current common methods for treating secondary aluminum ash can be divided into two types: wet treatment and fire treatment (rotary kiln roasting and rotary furnace roasting).
Whether the wet method or the fire method is adopted, one process is required before the secondary aluminum ash is treated: the primary aluminum ash is crushed or ground, sieved to take out the metal aluminum, and then subjected to the next treatment. For the secondary aluminum ash, the traditional sieving method is difficult to set the mesh number to be very fine, and the mesh number is usually 50 to 100 meshes (the particle size is between 0.3 and 0.15mm), which is called as millimeter level.
For the traditional method for treating the secondary aluminum ash: the wet treatment is a stacking treatment, and the rotary kiln roasting in the fire treatment are also stacking treatments, and although they also need to be crushed or ground and sieved before, the particle size of the secondary aluminum ash after treatment is not particularly important for the above two types of treatment methods, and basically neglects the problem.
Among them, the pyrometallurgical treatment also includes a method of continuous injection in-furnace treatment, in which the advantage of the fine particle size of the secondary aluminum ash is well utilized because the smaller the particle size of the secondary aluminum ash is, the more sufficient the combustion reaction is.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a wind selector, mill sieve device is provided, the problem of proposing in the above-mentioned background art can effectively be solved.
In order to solve the above problems, the utility model adopts the following technical scheme:
an air separation device, comprising:
the device comprises a cylinder body, a driving device and a supporting frame for supporting the cylinder body;
the driving device is arranged on the cylinder body, the cylinder body is provided with an airflow grading chamber and a material settling chamber, and the airflow grading chamber is communicated with the material settling chamber;
the cylinder body is also provided with a material inlet for inputting materials and an air inlet for introducing gas, and the material inlet and the air inlet are both communicated with the cylinder body;
the air flow grading chamber is internally provided with an air flow grading wheel for screening the material with the particle size, the cylinder body is provided with a material outlet, and the material screened by the air flow grading wheel is discharged from the material outlet;
the air flow grading wheel is driven by the driving device to form rotating air flow which stably rises along the cylinder body.
Preferably, the airflow classification chamber is arranged on the upper part of the cylinder, the material settling chamber is arranged on the lower part of the cylinder, and the material outlet comprises a fine material outlet and a coarse material outlet; the fine material outlet is arranged at the top of the airflow grading chamber, and fine materials screened by the airflow grading wheel are discharged from the fine material outlet; the coarse material outlet is arranged at the bottom of the material settling chamber, and the coarse material screened by the airflow classifying wheel is discharged from the coarse material outlet.
Preferably, the diameter of the air classifier wheel is greater than the diameter of the fine material outlet.
Preferably, the material inlet is obliquely arranged at the outer side of the cylinder body downwards and communicated with the airflow grading chamber; the air inlet comprises a primary air inlet and a secondary air inlet, and the primary air inlet and the secondary air inlet are both arranged on the outer side of the cylinder and are respectively communicated with the material settling chamber.
Preferably, the primary air inlet is used for quantitative air inlet, and the air inlet volume of the secondary air inlet is adjustable.
Preferably, the driving device comprises a motor, a belt and a belt pulley, the motor drives the belt pulley, and the belt pulley drives the airflow classifying wheel through the belt to form a rotating airflow which stably rises along the cylinder body.
Preferably, also relate to a mill sieve device, characterized by, includes:
an air classification device as claimed in any one of the preceding claims; the storage device, the grinding device and the dust removal device are arranged on the base;
the winnowing device is connected with the grinding device through a conveying pipeline; the material storage device is connected with the grinding device through a conveying pipeline; the dust removal device is connected with the air separation device through a conveying pipeline;
the conveying pipeline connected among the storage device, the grinding device, the winnowing device and the dust removal device is provided with a protection device for preventing the conveying pipeline from being worn through.
Preferably, the protection device consists of a stainless steel elbow and a cement sleeve; the stainless steel elbow is sleeved at the elbow of the conveying pipeline, and the cement sleeve is wrapped on the stainless steel elbow; the thickness of the cement sleeve is at least 10mm.
Preferably, the storing device comprises a first feeding hole and a first discharging hole, and the grinding device comprises a second feeding hole and a second discharging hole; the dust removal device comprises a third feeding port and a third discharging port;
the coarse material outlet of the air separation device is connected with the first feed port through a conveying pipeline, and the fine material outlet of the air separation device is connected with the third feed port through a conveying pipeline.
Preferably, an air blower and an induced draft fan which provide power sources for the materials are further arranged, and an exhaust funnel is further arranged.
Compared with the prior art, the utility model provides a wind selector, mill sieve device possesses following advantage:
the coarse and fine materials are separated by adopting the rotary air flow, the fine materials enter the next process, the coarse materials are returned to be ground again and separated again, and the process is repeated, so that the materials can be ensured to completely reach the required particle size. Adopt the secondary air to come the balanced intake of air according to the production situation to guarantee material screening efficiency. The conveying pipeline elbow is provided with a protection device, so that the conveying pipeline can be effectively prevented from being worn through by materials in the conveying process. After the conveying pipeline is worn out, the hollow between the protection device and the conveying pipeline is filled by fine secondary aluminum ash, so that the balance state of repairing and supplementing materials is achieved, and the elbow of the conveying pipeline is protected from being worn out.
Drawings
Fig. 1 is a schematic view of the internal structure of the winnowing device of the present invention;
FIG. 2 is a schematic view of the whole structure of the screen grinding device of the present invention;
FIG. 3 is a schematic view of the protection device of the present invention;
wherein: 100. the device comprises a cylinder body, 110, an airflow grading chamber, 111, an airflow grading wheel, 120, a material settling chamber, 130, a material inlet, 140, an air inlet, 141, a primary air inlet, 142, a secondary air inlet, 150, a material outlet, 151, a fine material outlet, 152, a coarse material outlet, 160, a compressed air port, 200, a driving device, 210, a motor, 220, a belt, 230, a belt pulley, 300, a support frame, 400, a storage device, 410, a first feeding port, 420, a first discharging port, 500, a grinding device, 510, a second feeding port, 520, a second discharging port, 600, a dust removal device, 610, a third feeding port, 620, a third discharging port, 630, a collection device, 700, a conveying pipeline, 800, a protection device, 810, a stainless steel elbow, 820, a cement sleeve, 900, an induced draft fan, 1000, an air blower, 1100 and an exhaust funnel.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1, one embodiment of the present invention provides a winnowing device, including: the cylinder 100, the driving device 200 and the supporting frame 300 for supporting the cylinder 100;
the driving device 200 is installed on the top of the cylinder 100, the cylinder 100 is provided with an airflow classification chamber 110 and a material precipitation chamber 120, and the airflow classification chamber 110 is communicated with the material precipitation chamber 120;
the cylinder 100 is further provided with a material inlet 130 for inputting materials and an air inlet 140 for receiving air, and both the material inlet 130 and the air inlet 140 are communicated with the cylinder 100;
an airflow classifying wheel 111 for screening the size of the material particles is arranged in the airflow classifying chamber 110, a material outlet 150 is arranged on the cylinder 100, and the material screened by the airflow classifying wheel 111 is discharged from the material outlet 150;
the air flow classifying wheel 111 is driven by the driving device 200 to form a rotating air flow which stably rises along the cylinder 100.
Further, the airflow classifying chamber 110 is arranged at the upper part of the cylinder 100, the material settling chamber 120 is arranged at the lower part of the cylinder 100, and the material outlet 150 comprises a fine material outlet 151 and a coarse material outlet 152; the fine material outlet 151 is arranged at the top of the airflow classifying chamber 110, and fine materials screened by the airflow classifying wheel 111 are discharged from the fine material outlet 151; the coarse material outlet 152 is arranged at the bottom of the material settling chamber 120, and the coarse material screened by the airflow classifying wheel 111 is discharged from the coarse material outlet 152.
In this embodiment, referring to fig. 1, the gas enters the cylinder 100 from the air inlet 140, the air classifying wheel 111 is driven by the driving device 200, the entering gas forms a rotating air flow which stably ascends along the cylinder 100 in the air classifying chamber 110, and a uniform centrifugal force field is formed in the space between the air classifying chamber 110 and the air classifying wheel 111.
Inputting materials from a material inlet 130 into the cylinder 100, wherein the materials stably rise along with the rotating airflow, and the rotating airflow is fully contacted with the materials; the material is fully spread by the centrifugal force field in the space of the air classification chamber 110.
The coarse particles in the material are separated to the wall because the centrifugal force applied to the coarse particles is larger than the drag force of the rotating airflow to the coarse particles, slide along the wall, enter the material settling chamber 120 and are discharged from the coarse material outlet 152.
The fine particles in the material rise along with the airflow due to the fact that the centrifugal force applied to the fine particles is smaller than the drag force of the rotating airflow on the fine particles, are brought into a space area around the airflow classifying wheel 111, and pass through the blade gap of the airflow classifying wheel 111 under the carrying effect of the airflow centripetal force which radially penetrates through the airflow classifying wheel 111 to enter the airflow classifying wheel 111; meanwhile, part of coarse particles in the material are not completely separated, and will rise along with the airflow and enter the airflow classifying wheel 111 together.
Under the action of the collision between the centrifugal force field formed in the airflow classifying wheel 111 and the blades, the secondary screening separation is performed, and coarse particles are separated, fall into the material settling chamber 120 and are discharged from the coarse material outlet 152.
The fine particles follow the gas stream and are discharged from the fine material outlet 151 for further processing.
In one embodiment, the airflow classifier wheel 111 has a diameter greater than the diameter of the fine material outlet 151. In the process of the rising of the rotating airflow, coarse particles in the material are separated to the wall of the container because the centrifugal force applied to the coarse particles is greater than the drag force of the rotating airflow to the coarse particles, slide along the wall of the container and enter the material settling chamber 120; however, some materials are not separated and rise along with the airflow, if the diameter of the fine material outlet 151 is larger than that of the airflow classifying wheel 111, coarse particles which are not separated in the materials easily pass through the airflow classifying wheel 111 and are directly discharged from the fine material outlet 151, and therefore the quality of the materials discharged from the fine material outlet 151 cannot be guaranteed.
In one embodiment, the material inlet 130 is arranged at the outer side of the cylinder 100 in a downward inclination manner and communicated with the airflow classifying chamber 110; the air inlet 140 includes a primary air inlet 141 and a secondary air inlet 142, and the primary air inlet 141 and the secondary air inlet 142 are both disposed at the outer side of the barrel 100 and are respectively communicated with the material settling chamber 120.
Further, the primary air inlet 141 is a quantitative air inlet, and the air inlet volume of the secondary air inlet 142 is adjustable.
In the embodiment, the material inlet 130 is arranged in a downward inclined manner, so that the material conveying efficiency can be improved, and the blockage is not easy to occur; when material is input from the material inlet 130, the material slides into the barrel 100 by gravity.
In this embodiment, the air inlet 140 is used to introduce air into the cylinder 100 through a blower (not shown in the figure); the primary air inlet 141 quantitatively enters the cylinder 100, and the airflow classifying chamber 110 forms a negative pressure working state under the action of the induced draft fan. Working under negative pressure, if there is not a proper amount of outside air supplement, the pressure transfer medium in the air flow classification chamber 110 is less and less, and the material can not be taken away due to insufficient carrier, and is retained in the air flow classification chamber 110, which affects the material screening effect.
A secondary air inlet 142 is arranged, and the secondary air inlet amount can be adjusted; under the negative pressure working state, the secondary air intake is adjusted to balance the working state in the airflow classifying chamber 110.
Under the negative pressure working state, if the secondary air intake is increased slightly, the materials cannot be suspended upwards, and the materials are already settled in the material settling chamber 120 before being subjected to secondary or tertiary classification; meanwhile, the increase of secondary air intake is small, only part of particles formed by agglomeration of fine particles are dispersed, and the non-dispersed fine particles are still settled as coarse particles, so that the coarse particles still contain certain fine particles after classification.
If the secondary air intake is increased too much, the discharged air flow is increased along with the secondary air intake, the flow speed is accelerated, and some coarse particles are forcibly discharged along with the fine particle materials under the condition of increasing the flow speed and the flow, so that the granularity of finished products is influenced.
So the adjustment of the secondary air intake is important for the grading effect.
In one embodiment, the driving device 200 is installed on the top of the cylinder 100, the driving device 200 includes a motor 210, a belt 220 and a pulley 230, the motor 210 drives the pulley 230, the pulley 230 drives the airflow classifying wheel 111 through the belt 220 to form a rotating airflow ascending stably along the cylinder 100, and a bearing box is provided inside the cylinder 100 to ensure the airflow classifying wheel 111 to operate normally.
In one embodiment, the top of the barrel 100 is provided with a compressed air port 160, the compressed air port 160 is arranged between the airflow classifying wheel 111 and the fine material outlet 151, and the compressed air port 160 is communicated with the fine material outlet 151, so that the airflow classifying wheel 111 is prevented from being blocked, the radial airflow is driven to be the axial airflow, and the fine material can be better discharged from the fine material outlet 151.
In this embodiment, after the fine particle materials are screened by the airflow classifying wheel 111, the fine particle materials are discharged upwards along with the radially upward airflow; compressed gas is added through the compressed air port 160 to prevent the materials from accumulating at the bearing box and causing blockage; the compressed air introduced into the compressed air port 160 can change the radial air flow into the axial air flow, so as to better discharge the fine material from the fine material outlet 151 without causing blockage.
The utility model discloses one of them embodiment provides a grind sieve device, a serial communication port, include: an air classification device as claimed in any one of the preceding claims; the storage device 400, the grinding device 500 and the dust removal device 600;
the air separation device is connected with the grinding device 500 through a conveying pipeline 700; the storage device 400 is connected with the grinding device 500 through a conveying pipeline 700; the dust removing device 600 is connected with the air separation device through a conveying pipeline 700;
the conveying pipelines 700 connected among the storage device 400, the grinding device 500, the air separation device and the dust removal device 600 are all sleeved with a protection device 800 for preventing the conveying pipelines 700 from being worn through.
In this embodiment, referring to fig. 2, the storage device 400 stores primary aluminum ash, and the primary aluminum ash is conveyed into the grinding device 500 through the conveying pipeline 700 to be crushed and ground to form secondary aluminum ash; conveying the ground secondary aluminum ash to a winnowing device through a conveying pipeline 700 for screening; the secondary aluminum ash of the screened coarse particles is discharged from the coarse material outlet 152 of the air separation device and returns to the storage device 400 through the conveying pipeline 700, and the secondary aluminum ash of the fine particles is discharged from the fine material outlet 151 of the air separation device and enters the dust removal device 600 through the conveying pipeline 700. A collecting device 630 is arranged below the dust removing device 600; secondary dust removal is performed on the fine particles through the dust removal device 600, so that tail gas of the fine particles reaches the emission standard, and the tail gas is emitted through the exhaust funnel 1100; the fine particle secondary aluminum ash after dust removal is deposited below the dust removal device 600 and collected by the collection device 630. In the process of conveying secondary aluminum ash, the secondary aluminum ash can collide and rub the elbow of the conveying pipeline 700 for a long time, so that the elbow of the conveying pipeline 700 forms a plurality of hollow parts which are easy to wear through, and the protective device 800 is arranged.
In one embodiment, the protection device 800 is composed of a stainless steel elbow 810 and a cement casing 820; the stainless steel elbow 810 is sleeved at the elbow of the conveying pipeline 700, and the cement sleeve 820 is wrapped on the stainless steel elbow 810; the cement casing 820 has a thickness of at least 10mm.
In this embodiment, during the process of conveying the material, the material may collide and rub against the elbow of the conveying pipe 700 for a long time, so that the elbow of the conveying pipe 700 forms many depressions, which are easily worn out. Referring to fig. 3, a protection device 800 is arranged at the elbow of the conveying pipeline 700, and the protection device 800 comprises a stainless steel elbow 810 and a cement sleeve 820; the stainless steel elbow 810 is sleeved at the elbow of the conveying pipeline 700, the cement sleeve 820 wraps the stainless steel elbow 810, and after the conveying pipeline 700 is worn out, fine materials can fill the pits due to the fact that the stainless steel elbow 810 wraps the conveying pipeline 700, so that the balance state of repairing and supplementing with the materials is achieved, and the elbow of the conveying pipeline 700 is protected from being worn out.
Further, the storing device 400 comprises a first feeding hole 410 and a first discharging hole 420, and the grinding device 500 comprises a second feeding hole 510 and a second discharging hole 520; the dust removing device 600 comprises a third feeding port 610 and a third discharging port 620;
the first discharge hole 420 of the storing device 400 is connected with the second feed hole 510 of the grinding device 500 through a conveying pipeline 700; the second discharge port 520 of the grinding device 500 is connected with the material inlet 130 of the air separation device through a conveying pipeline 700; the fine material outlet 151 of the air separation device is connected with the third feed inlet 610 of the dust removal device 600 through a conveying pipeline 700; the coarse material outlet 152 of the air separation device is connected with the first feed inlet 410 through a conveying pipeline 700; and a third discharge hole 620 of the dust removal device 600 is connected with an induced draft fan 900 and an exhaust funnel 1100 through a conveying pipeline 700.
In one embodiment, an air blower 1000 and an induced draft fan 900 for providing power sources for conveying materials are arranged, and an exhaust funnel 1100 is arranged, wherein the exhaust funnel 1100 is connected with the third discharge hole 620 through a conveying pipeline 700.
In this embodiment, the blower 1000 is disposed in the conveying pipeline 700 between the first discharging port 420 and the second feeding port 510, and when the primary aluminum ash in the storage device 400 is conveyed to the grinding device 500 through the conveying pipeline 700, the blower 1000 is used as a power source to convey the material when the grinding device 500 conveys the crushed and ground secondary aluminum ash to the air separation device. The conveying pipeline 700 between the coarse material outlet 152 and the first feeding port 410 of the air separation device is provided with a blower 1000, and when the coarse particle secondary aluminum ash screened by the air separation device is conveyed back into the storage device 400, the blower 1000 is also used as a power source to convey the material. The transfer pipe 700 between the third discharge hole 620 and the exhaust stack 1100 is provided with an induced draft fan 900, and exhaust gas, air pressure, etc. generated after the dust removing device 600 has processed the fine particle secondary aluminum ash are discharged from the exhaust stack 1100 by using the induced draft fan 900 as a power source.
The utility model discloses one of them embodiment provides a grind sieve method, adopts as above arbitrary one grind sieve device, including following step:
step one, collecting and storing materials: placing the primary aluminum ash in a storage device 400 for storage;
step two, conveying grinding materials: conveying the secondary aluminum ash into a grinding device 500 through a blower 1000 for crushing and grinding into secondary aluminum ash, and conveying the secondary aluminum ash into a winnowing device for screening;
step three, screening materials: screening secondary aluminum ash through a winnowing device, and separating the secondary aluminum ash into coarse materials and fine materials;
under the action of centrifugal force, the coarse materials are subjected to centrifugal force which is larger than the drag force of the rotating airflow to the coarse materials, are separated to the cylinder wall, slide along the cylinder wall and are discharged from the coarse material outlet 152, and the coarse materials are returned to the first step for processing again through the blower 1000;
under the action of centrifugal force, the fine materials are subjected to centrifugal force smaller than the drag force of the rotating airflow to the fine materials, ascend along with the airflow, enter the airflow classifying wheel 111 and are screened again;
the fine materials screened by the airflow classifier 111 are discharged from a fine material outlet 151 and enter a dust removal device 600;
step four, dedusting and collecting materials: dedusting the fine materials, depositing the dedusted fine materials at the bottom of the dedusting device 600, and collecting;
step five, tail gas emission: the exhaust gas treated by the dust removing device 600 reaches the emission standard, and the exhaust gas subjected to the dust removing treatment in the dust removing device 600 is discharged through the induced draft fan 900.
The utility model discloses one of them embodiment provides a method of secondary aluminium ash is handled to blowing formula, adopts above a grinding sieve method.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (10)
1. An air separation device, comprising:
the device comprises a cylinder, a driving device and a support frame for supporting the cylinder;
the driving device is arranged on the cylinder body, the cylinder body is provided with an airflow grading chamber and a material settling chamber, and the airflow grading chamber is communicated with the material settling chamber;
the cylinder body is also provided with a material inlet for inputting materials and an air inlet for introducing air, and the material inlet and the air inlet are both communicated with the cylinder body;
the air flow grading chamber is internally provided with an air flow grading wheel for screening the material with the particle size, the cylinder body is provided with a material outlet, and the material screened by the air flow grading wheel is discharged from the material outlet;
the air flow grading wheel is driven by the driving device to form rotating air flow which stably rises along the cylinder body.
2. The air separation device according to claim 1, wherein the air classification chamber is arranged at the upper part of the cylinder body, the material sedimentation chamber is arranged at the lower part of the cylinder body, and the material outlet comprises a fine material outlet and a coarse material outlet; the fine material outlet is arranged at the top of the airflow grading chamber, and fine materials screened by the airflow grading wheel are discharged from the fine material outlet; the coarse material outlet is arranged at the bottom of the material settling chamber, and the coarse material screened by the airflow classifying wheel is discharged from the coarse material outlet.
3. An air classification apparatus as claimed in claim 2, characterized in that the diameter of the air classifier wheel is larger than the diameter of the fine material outlet.
4. The air separation device of claim 1 wherein the material inlet is disposed downwardly outside the barrel and communicates with the air classifying chamber; the air inlet comprises a primary air inlet and a secondary air inlet, and the primary air inlet and the secondary air inlet are both arranged on the outer side of the cylinder and are respectively communicated with the material settling chamber.
5. The winnowing device according to claim 4, wherein the primary air inlet is a quantitative air inlet, and the air inlet amount of the secondary air inlet is adjustable.
6. The air separation device of claim 1 wherein the drive means comprises a motor, a belt and a pulley, the motor driving the pulley, the pulley driving the air classifier wheel via the belt to form the air into a rotating air stream that rises steadily along the barrel.
7. A grinding screen apparatus, comprising:
an air classification device as claimed in any one of claims 1 to 6; the storage device, the grinding device and the dust removal device are arranged on the base;
the winnowing device is connected with the grinding device through a conveying pipeline; the storage device is connected with the grinding device through a conveying pipeline; the dust removal device is connected with the air separation device through a conveying pipeline;
the conveying pipeline connected among the storage device, the grinding device, the winnowing device and the dust removal device is provided with a protection device for preventing the conveying pipeline from being worn through.
8. A mill screen apparatus according to claim 7, wherein the protection means comprises a stainless steel elbow and a cement sleeve; the stainless steel elbow is sleeved at the elbow of the conveying pipeline, and the cement sleeve is wrapped on the stainless steel elbow; the thickness of the cement sleeve is at least 10mm.
9. The grinding and screening device as claimed in claim 7, wherein the storing device comprises a first feeding port and a first discharging port, and the grinding device comprises a second feeding port and a second discharging port; the dust removal device comprises a third feed port and a third discharge port;
the coarse material outlet of the air separation device is connected with the first feeding port through a conveying pipeline, and the fine material outlet of the air separation device is connected with the third feeding port through a conveying pipeline.
10. A grinding and screening apparatus as claimed in claim 9, further including a blower and an induced draft fan for providing a source of power to the material, and an exhaust stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222193744.2U CN217797393U (en) | 2022-08-20 | 2022-08-20 | Winnowing device and grinding and screening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222193744.2U CN217797393U (en) | 2022-08-20 | 2022-08-20 | Winnowing device and grinding and screening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217797393U true CN217797393U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222193744.2U Active CN217797393U (en) | 2022-08-20 | 2022-08-20 | Winnowing device and grinding and screening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217797393U (en) |
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2022
- 2022-08-20 CN CN202222193744.2U patent/CN217797393U/en active Active
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