CN109132616B - Stepped powder selecting and bottom powder conveyor - Google Patents
Stepped powder selecting and bottom powder conveyor Download PDFInfo
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- CN109132616B CN109132616B CN201811156621.3A CN201811156621A CN109132616B CN 109132616 B CN109132616 B CN 109132616B CN 201811156621 A CN201811156621 A CN 201811156621A CN 109132616 B CN109132616 B CN 109132616B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/181—Preventing escape of dust by means of sealed systems
- B65G69/182—Preventing escape of dust by means of sealed systems with aspiration means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G37/00—Combinations of mechanical conveyors of the same kind, or of different kinds, of interest apart from their application in particular machines or use in particular manufacturing processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/06—Gas pressure systems operating without fluidisation of the materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
- B65G65/46—Devices for emptying otherwise than from the top using screw conveyors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/12—Sieving bulk materials during loading or unloading
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
Abstract
The invention aims to provide a stepped powder selecting and bottom powder conveying machine which is used for solving the technical problems of material size grading selection and bottom powder output. A stepped powder selecting and bottom powder conveyor comprises a main frame, a shaking type stepped material selecting system and a pneumatic cooperative material discharging system, wherein the shaking type stepped material selecting system and the pneumatic cooperative material discharging system are arranged on the main frame from top to bottom, and the main frame is arranged below a material warehouse. The invention has the beneficial effects that: according to the technical scheme, the material powder in the material storage can be ensured to smoothly fall downwards, and the fallen materials are separated according to the particle size grade. Finally, the fine powder of the bottom layer which meets the requirement is output.
Description
Technical Field
The invention relates to the technical field of material powder screening and conveying devices for cement production, in particular to a stepped powder screening and bottom powder conveyor.
Background
In order to improve the quality of cement products, the proportion of various raw materials is involved in the cement production. Most of the raw materials are minerals, and the mineral raw materials are solid substances and need to be mixed after being crushed and ground. In the prior art, a roller mill is generally adopted to grind the mineral substances and then directly mix the ground mineral substances with other materials. However, direct blending results in a reduction in the quality of the cement product, since some of the material is not completely ground. This then requires that the material particles be screened prior to compounding. The material particles meeting the requirements can be directly selected. Materials which do not meet the size requirement are sorted according to size categories and then ground again by adopting grinding machines with different specifications.
Disclosure of Invention
The invention aims to provide a stepped powder selecting and bottom powder conveying machine which is used for solving the technical problems of material size grading selection and bottom powder output.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a stepped powder selecting and bottom powder conveyor comprises a main frame, a shaking type stepped material selecting system and a pneumatic cooperative material discharging system, wherein the shaking type stepped material selecting system and the pneumatic cooperative material discharging system are arranged on the main frame from top to bottom;
the shaking type step material selecting system comprises a shaking driving mechanism, a shaking cavity mechanism and a grading screening mechanism; the shaking cavity mechanism comprises an upper shaking anastomosis plate, a lower material receiving cavity, a middle shaking cavity and an upper flexible telescopic cavity; the upper shaking kiss plate is connected with the lower middle shaking cavity through the upper flexible telescopic cavity, and an upper shaking feed inlet is arranged on the upper shaking kiss plate to communicate the material storage with the middle shaking cavity; the lower feeding cavity is arranged below the middle shaking cavity, and a lower shaking discharge hole is formed in the lower feeding cavity and is communicated with a feeding end of the pneumatic cooperative discharging system below the lower shaking discharge hole; the shaking driving mechanism adopts an eccentric wheel rocker mechanism, and the power output end of the eccentric wheel rocker mechanism is connected with the middle shaking cavity;
the grading screening mechanism comprises a screen plate, a screening chute and a grading collecting box, the screen plate is provided with a plurality of layers, the plurality of layers of screen plates are respectively obliquely arranged on the middle shaking cavity in an up-down parallel manner, and meshes of the plurality of layers of screen plates are gradually reduced from top to bottom; the screening chutes are provided with a plurality of layers and are obliquely arranged on the main rack corresponding to the sieve plates respectively; the rear end of the sieve plate is positioned above the front end of the screening chute, and the rear end of the screening chute is communicated with the grading collection box;
the pneumatic cooperative discharging system comprises a screw air compression mechanism and an air compression mechanism; the screw air compression mechanism comprises a screw air compression cavity, a stud, a screw sheet and a screw driving hollow shaft motor; the stud adopts a hollow cylinder structure and is rotatably arranged in the screw air pressure cavity; the screw pieces are provided with a plurality of pieces and are spirally arranged on the stud from front to back; the spiral pieces are of a cavity structure and are communicated with the cavity of the stud, the spiral pieces are not communicated with each other, and a plurality of airflow push holes are formed in the front end faces of the spiral pieces; the front end of a hollow rotating shaft of the screw rod driving hollow shaft motor is connected with and communicated with the rear end of the stud; the rear end of a hollow rotating shaft of the screw rod driving hollow shaft motor is communicated with an air supply port of the air pressure mechanism.
Preferably, the shaking cavity mechanism comprises a material stirring frame, the material stirring frame is arranged in the middle shaking cavity, and the upper end of the material stirring frame extends out of the upper end of the upper shaking feed port.
Preferably, a shaking guide frame is arranged on the outer side of the middle shaking cavity, and an upper shaking guide sliding block is arranged at the upper end of the shaking guide frame; the lower end of the upper shaking anastomosis plate is correspondingly provided with an upper shaking guide sliding groove, and an upper shaking guide sliding block is slidably arranged in the upper shaking guide sliding groove.
Preferably, the rear end of a hollow rotating shaft of the screw rod driving hollow shaft motor is communicated with an air supply port of the air pressure mechanism through a hollow rotating joint;
the air pressure mechanism comprises a compressed air pump, a pressure dividing disc and a pressure dividing conduit, and an air flow output end of the compressed air pump is communicated with the hollow rotary joint through an air supply pipe; the pressure dividing plate is installed in the rear end of the hollow rotating shaft of the screw drive hollow shaft motor, a plurality of pressure dividing end holes are formed in the pressure dividing plate, the air inlet end of the pressure dividing pipe is communicated with the pressure dividing end holes in the pressure dividing plate, and the air outlet end of the pressure dividing pipe is communicated with the cavity of the screw piece.
Preferably, a diaphragm layer is arranged on the front end face in the spiral slice cavity, and a diaphragm cavity is formed between the diaphragm layer and the front end face in the spiral slice cavity;
a plurality of pressure dividing end holes with different sizes are arranged on the pressure dividing disc, a plurality of pressure dividing guide pipes with different pore sizes are arranged on the pressure dividing guide pipes, and the pressure dividing guide pipes with different pore sizes are respectively arranged corresponding to the pressure dividing end holes with different sizes;
and the diameter of the partial pressure conduit communicated with the diaphragm cavity in the screw piece is gradually reduced from the rear end to the front end of the stud.
Preferably, the thread pitch of the plurality of the screw pieces gradually decreases from the rear end of the stud to the front end of the stud.
Preferably, the grading collection box is provided with a dust removal mechanism, and the dust removal mechanism comprises a dust removal cavity, a dust removal bag and an exhaust fan; the inner end of the dust removing cavity is communicated with the inside of the grading collecting box, and the outer end of the dust removing cavity is communicated with the air exhaust end of the air exhaust fan through an air exhaust pipeline; the dust removal bag is installed in the dust removal intracavity.
Preferably, the dust removing cavity is provided with an access hole, and an access door mechanism is installed on the access hole; the access door mechanism comprises an access door, an observation window, an observation cleaning brush, an observation cleaning driving handle and an observation cleaning rotating shaft; one side of the access door is hinged with one side of the access opening, and the observation window is arranged on the access door; the observation cleaning rotating shaft is rotatably arranged on the observation window, the observation cleaning brush is positioned at the inner side of the observation window and is tightly attached to the observation window, and the observation cleaning brush is connected with the inner end of the observation cleaning rotating shaft; observe the clearance drive handle and be located the outside of observation window, observe the clearance drive handle with observe the outer end of clearance pivot and be connected.
Preferably, the door trimming mechanism comprises a compression spring, and the compression spring is sleeved on the outer end part of the observation and cleaning rotating shaft and is positioned between the outer side of the observation window and the observation and cleaning driving handle.
The effect provided in the summary of the invention is only the effect of the embodiment, not all the effects of the invention, and one of the above technical solutions has the following advantages or beneficial effects:
according to the technical scheme, the material powder in the material storage can be ensured to smoothly fall downwards, and the fallen materials are separated according to the particle size grade. Finally, the fine powder of the bottom layer which meets the requirement is output.
Drawings
FIG. 1 is a schematic front view of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic sectional view of the upper portion of the rocking chamber mechanism in an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is a schematic sectional view taken along line A-A in FIG. 3;
FIG. 5 is an enlarged view of a portion of FIG. 4 at B;
FIG. 6 is a schematic structural view of a pneumatic cooperative discharging system after a screw air compression cavity is cut open in the embodiment of the invention;
FIG. 7 is a schematic cross-sectional view of a spiral piece according to an embodiment of the present invention;
FIG. 8 is a schematic partial view of a split connection between a stud and a hollow rotating shaft according to an embodiment of the present invention;
in the figure: 1. a main frame; 2. a material warehouse; 3. shaking the upper kiss plate; 4. a lower feeding cavity; 5. a middle shaking cavity; 6. an upper flexible bellows; 8. a material stirring frame; 9. shaking the guide frame; 10. shaking the driving motor; 11. shaking the driving eccentric wheel; 12. a sieve plate; 13. a screening chute; 14. a grading collection box; 15. a dust removal cavity; 16. a dust removal bag; 17. an exhaust fan; 18. an access hole; 19. an access door; 20. an observation window; 21. observing and cleaning the brush; 22. observing and cleaning the driving handle; 23. observing and cleaning the rotating shaft; 24. a compression spring; 25. a screw air compression cavity; 26. a stud; 27. a snail sheet; 28. the screw drives the hollow shaft motor; 29. an airflow pushing hole; 30. a separator layer; 31. a hollow rotary joint; 32. a discharge feed inlet; 33. a discharging port for discharging; 34. a pressure distributing disc; 35. a partial pressure conduit; 36. a hollow rotating shaft; 37. a gas supply pipe.
Detailed Description
In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and techniques are omitted so as to not unnecessarily limit the invention.
As shown in fig. 1 to 8, the device is arranged at the bottom of a material warehouse 2 and is used for classifying and screening materials accumulated in the material warehouse 2 according to particle sizes and outputting the finest bottom powder meeting the requirements; the device comprises a main frame 1, a shaking type step material selecting system and a pneumatic cooperative material discharging system; the main frame 1 is arranged below the material storage 2 and is used for installing other functional components.
The shaking type stepped material selecting system is used for realizing smooth downward movement of materials in the upper material warehouse 2 and classifying and screening the materials according to the size of particles. Comprises a shaking driving mechanism, a shaking cavity mechanism and a grading screening mechanism. The shaking cavity mechanism comprises an upper shaking anastomosis plate 3, a lower material receiving cavity 4, a middle shaking cavity 5, an upper flexible telescopic cavity 6 and a material shifting frame 8. The upper shaking kiss plate 3 is fixedly arranged at the upper end of the main frame 1, the upper shaking kiss plate 3 is connected with a middle shaking cavity 5 below through an upper flexible telescopic cavity 6 (a rubber corrugated telescopic cavity or a canvas cavity), and an upper shaking feed inlet is arranged on the upper shaking kiss plate 3 to communicate the material storage 2 with the middle shaking cavity 5. The lower feeding cavity 4 is fixedly arranged on the main frame 1 and corresponds to the lower part of the upper middle shaking cavity 5; the lower material receiving cavity 4 adopts a cone cavity body structure.
The grading screening mechanism is used for grading screening and separating the materials falling into the middle shaking cavity 5 and comprises a sieve plate 12, a screening chute 13, a grading collecting box 14 and a dust removing mechanism. The sieve plates 12 are provided with a plurality of layers, and the plurality of layers of sieve plates 12 are respectively arranged on the middle shaking cavity 5 in an up-down parallel inclined mode. The meshes of the multiple layers of sieve plates 12 are gradually reduced from top to bottom so as to screen out materials with different particle sizes in a grading way, and then the materials are collected by the grading collection box 14 and then are processed in a classification way. The screening chute 13 is divided into a plurality of layers, and is obliquely arranged on the main frame 1 corresponding to the sieve plate 12. The rear end of the sieve plate 12 is positioned above the front end of the screening chute 13, and the rear end of the screening chute 13 is communicated with the grading collection box 14. The materials with smaller particles descend downwards step by step through the sieve plate 12 until the finest materials meeting the requirements descend downwards through the lower material receiving cavity 4 and enter the pneumatic cooperative discharging system below. Other materials with different specifications respectively slide into the corresponding screening chutes 13 through the upper end surfaces of the screen plates 12 and then enter the grading collection box 14 through the screening chutes 13.
The dust removing mechanism is arranged on the grading and collecting box 14 and is used for collecting powder raised when the materials enter the grading and collecting box 14 so as to improve the environment in the grading and collecting box 14 and facilitate workers to take the materials from the grading and collecting box 14; the dust removal mechanism comprises a dust removal cavity 15, a dust removal bag 16, an exhaust fan 17 and an overhaul mechanism. The dust removing cavity 15 is arranged on the grading collecting box 14, and the inner end of the dust removing cavity 15 is communicated with the inside of the grading collecting box 14; the outer end of the dust removing cavity 15 is communicated with the air exhaust end of the air exhaust fan 17 through an air exhaust pipeline. A silencer is arranged on the exhaust pipeline, and an exhaust fan 17 is arranged on the outer side of the grading collection box 14. The dust removal bag 16 is installed in the dust removal chamber 15, and dust passing through the dust removal chamber 15 is collected by means of filtering by the dust removal bag 16. An access hole 18 is formed in the dust removal cavity 15, and the access hole 18 is arranged close to the dust removal bag 16 so as to remove dust in the dust removal bag 16 in time. The maintenance door mechanism install maintenance opening 18 department, maintenance door mechanism includes access door 19, observation window 20, observes clearance brush 21, observes clearance drive handle 22, observes clearance pivot 23 and pressure spring 24. One side of the access door 19 is hinged with one side of the access opening 18, and a rubber sealing ring is arranged on the edge of the inner side of the access door 19, so that sealing is formed between the closed access door 19 and the access opening 18. The observation window 20 is arranged on the access door 19 and can be made of PVC transparent materials, so that the condition in the dust removing cavity 15 can be observed conveniently. The observation cleaning rotating shaft 23 is rotatably arranged on the observation window 20. The observation and cleaning brush 21 is positioned at the inner side of the observation window 20 and is tightly attached to the observation window 20, and the rear end part of the observation and cleaning brush 21 is connected with the inner end of the observation and cleaning rotating shaft 23. The observation and cleaning driving handle 22 is positioned at the outer side of the observation window 20, and the rear end part of the observation and cleaning driving handle 22 is connected with the outer end of the observation and cleaning rotating shaft 23. The hold-down spring 24 is sleeved on the outer end part of the observation and cleaning rotating shaft 23, is positioned between the outer side of the observation window 20 and the observation and cleaning driving handle 22, and is in a compressed state. Therefore, the observation and cleaning rotating shaft 23 can always move outwards, and the observation and cleaning brush 21 on the inner side is ensured to be tightly attached to the observation window 20.
Preferably, a shaking guide frame 9 is arranged on the outer side of the middle shaking cavity 5, an upper shaking guide slide block is arranged at the upper end of the shaking guide frame 9, and an upper shaking guide sliding chute is correspondingly arranged at the lower end of the upper shaking anastomosis plate 3; the upper shaking guide sliding block is slidably arranged in the upper shaking guide sliding groove.
The shaking driving mechanism is used for driving the middle shaking cavity 5 to reciprocate so as to realize the movement of the sieve plate 12; the device comprises a shaking driving motor 10, a shaking driving eccentric wheel 11, a first shaking driving connecting rod and a second shaking driving connecting rod; a shaking driving motor 10 is arranged at one side of the main frame 1 through a bracket, and a shaking driving eccentric wheel 11 is arranged on a rotary power output shaft of the shaking driving motor 10; one end of the first connecting rod for driving in a shaking way is hinged with the eccentric wheel 11 for driving in a shaking way, and the other end of the first connecting rod for driving in a shaking way is hinged with the second connecting rod for driving in a shaking way; the other end of the second connecting rod is driven to be hinged with a rocking connecting end lug outside the middle rocking cavity 5 in a rocking mode. The shaking driving mechanism drives the sieve plate 12 to move on one hand by driving the shaking cavity mechanism to reciprocate, so that materials with different sizes are separated by descending step by step. On the other hand, because dial the work or material rest 8 and install the middle upper end of waveing in the chamber 5, the upper end of dialling the work or material rest 8 stretches out last feed inlet upper end of waveing, can stir the top material along with the middle removal of waveing the chamber 5, realize that the material is smooth through last the feed inlet of waveing get into in the middle of waveing the chamber 5.
The pneumatic cooperative discharging system is used for transversely discharging the bottom powder material powder falling from the upper part so as to be convenient for transmission and transportation, and comprises a screw air compression mechanism and an air compression mechanism; the screw air compression mechanism comprises a screw air compression cavity 25, a stud 26, a screw sheet 27 and a screw driving hollow shaft motor 28. The stud 26 is rotatably installed in the screw air compression cavity 25 (the rear end of the stud 26 is connected with the screw air compression cavity 25 through a bearing), and the stud 26 is of a hollow cylindrical structure. The spiral piece 27 is provided with a plurality of pieces, and the spiral piece 27 is spirally arranged on the stud 26 from front to back; the screw blade 27 gradually reduces the pitch from the rear end of the stud 26 to the front end of the stud 26, so that the front end and the rear end of the stud 26 are evenly stressed and transferred to push the material powder. The spiral sheet 27 adopts a cavity structure and is communicated with the cavity of the stud 26, and the plurality of spiral sheets 27 are not communicated with each other; the front end surface of the spiral sheet 27 is provided with a plurality of airflow pushing holes 29, and the airflow pushing holes 29 are provided with one-way airflow valves. The diaphragm layer 30 is arranged on the front end face in the cavity of the spiral piece 27, a diaphragm cavity is formed between the diaphragm layer 30 and the front end face in the cavity of the spiral piece 27, and the diaphragm cavity is used for realizing the balanced ejection of air flow through the air flow pushing holes 29. The front end of a hollow rotating shaft 36 of the screw rod driving hollow shaft motor 28 is connected with and communicated with the rear end of the stud 26; the rear end of a hollow rotating shaft 36 of the screw driving hollow shaft motor 28 is communicated with the air supply port of the air pressure mechanism through a hollow rotating joint 31. A discharge feed inlet 32 is formed above the rear end of the screw air compression cavity 25, and the discharge feed inlet 32 is communicated with the lower discharge cavity 4; the front end of the screw air compression cavity 25 is provided with a discharging port 33.
The pneumatic mechanism is used for injecting compressed air into the diaphragm cavity and comprises a compressed air pump, a partial pressure disk 34 and a partial pressure conduit 35. The air flow output end of the compressed air pump is communicated with the hollow rotary joint 31 through an air supply pipe 37; the pressure dividing plate 34 is installed in the rear end of the hollow rotating shaft 36 of the screw drive hollow shaft motor 28, a plurality of pressure dividing end holes are formed in the pressure dividing plate 34, and the pressure dividing end holes are provided with a plurality of different sizes. The partial pressure pipe 35 is provided with a plurality of partial pressure pipes 35 having different pore sizes, and the partial pressure pipes 35 having different pore sizes are respectively disposed corresponding to the partial pressure end holes having different sizes. The gas inlet end of the partial pressure conduit 35 is communicated with a partial pressure end hole on the partial pressure disk 34, and the gas outlet end of the partial pressure conduit 35 is communicated with the diaphragm cavity. The diameter of the partial pressure conduit 35 communicated with the diaphragm cavity in the screw plate 27 is gradually reduced from the rear end to the front end of the stud 26.
After the material powder above enters the rear end of the screw air compression cavity 25 through the discharge feed inlet 32, the screw blades 27 gradually decrease in pitch from the rear end of the stud 26 to the front end of the stud 26, so that the front and rear screw blades 27 can push and transfer the material powder accumulated at the rear end to the front end under the action of the balancing force, and the rear screw blade 27 is prevented from applying too large pushing force. In addition, the material powder is blown by the airflow in the airflow pushing hole 29 on the spiral piece 27, so that the whole body presents suspension fluidity, and the spiral piece 27 is more convenient to push. Furthermore, the aperture of the partial pressure conduit 35 communicated with the diaphragm cavity in the screw plate 27 is gradually reduced from the rear end to the front end of the stud 26; the material powder at the rear end is relatively large in blowing force of the airflow, and blowing of the material powder is facilitated. Finally, the powder enters other transfer equipment (such as a powder material transport vehicle) through a discharge outlet 33 at the front end of the screw air compression cavity 25.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and various modifications and variations can be made by those skilled in the art without inventive efforts based on the technical solution of the present invention.
Claims (9)
1. A stepped powder selecting and bottom powder conveyor is characterized by comprising a main frame, a shaking type stepped material selecting system and a pneumatic cooperative discharging system, wherein the shaking type stepped material selecting system and the pneumatic cooperative discharging system are arranged on the main frame from top to bottom;
the shaking type step material selecting system comprises a shaking driving mechanism, a shaking cavity mechanism and a grading screening mechanism; the shaking cavity mechanism comprises an upper shaking anastomosis plate, a lower material receiving cavity, a middle shaking cavity and an upper flexible telescopic cavity; the upper shaking kiss plate is connected with the lower middle shaking cavity through the upper flexible telescopic cavity, and an upper shaking feed inlet is arranged on the upper shaking kiss plate to communicate the material storage with the middle shaking cavity; the lower feeding cavity is arranged below the middle shaking cavity, and a lower shaking discharge hole is formed in the lower feeding cavity and is communicated with a feeding end of the pneumatic cooperative discharging system below the lower shaking discharge hole; the shaking driving mechanism adopts an eccentric wheel rocker mechanism, and the power output end of the eccentric wheel rocker mechanism is connected with the middle shaking cavity;
the grading screening mechanism comprises a screen plate, a screening chute and a grading collecting box, the screen plate is provided with a plurality of layers, the plurality of layers of screen plates are respectively obliquely arranged on the middle shaking cavity in an up-down parallel manner, and meshes of the plurality of layers of screen plates are gradually reduced from top to bottom; the screening chutes are provided with a plurality of layers and are obliquely arranged on the main rack corresponding to the sieve plates respectively; the rear end of the sieve plate is positioned above the front end of the screening chute, and the rear end of the screening chute is communicated with the grading collection box;
the pneumatic cooperative discharging system comprises a screw air compression mechanism and an air compression mechanism; the screw air compression mechanism comprises a screw air compression cavity, a stud, a screw sheet and a screw driving hollow shaft motor; the stud adopts a hollow cylinder structure and is rotatably arranged in the screw air pressure cavity; the screw pieces are provided with a plurality of pieces and are spirally arranged on the stud from front to back; the spiral pieces are of a cavity structure and are communicated with the cavity of the stud, the spiral pieces are not communicated with each other, and a plurality of airflow push holes are formed in the front end faces of the spiral pieces; the front end of a hollow rotating shaft of the screw rod driving hollow shaft motor is connected with and communicated with the rear end of the stud; the rear end of a hollow rotating shaft of the screw rod driving hollow shaft motor is communicated with an air supply port of the air pressure mechanism.
2. The stepped powder concentrator and base powder conveyor of claim 1 wherein said rocking chamber means includes a kickoff rack mounted in said intermediate rocking chamber, the upper end of the kickoff rack extending above the upper end of said upper rocking feed port.
3. The stepped powder selecting and bottom powder conveyor as claimed in claim 1, wherein a shaking guide frame is provided outside the middle shaking chamber, and an upper shaking guide slide block is provided at an upper end of the shaking guide frame; the lower end of the upper shaking anastomosis plate is correspondingly provided with an upper shaking guide sliding groove, and an upper shaking guide sliding block is slidably arranged in the upper shaking guide sliding groove.
4. The stepped dust selecting and bottom dust conveyor as claimed in claim 1, wherein the rear end of the hollow rotating shaft of the screw-driven hollow shaft motor is communicated with the air supply port of the air pressure mechanism through a hollow rotating joint;
the air pressure mechanism comprises a compressed air pump, a pressure dividing disc and a pressure dividing conduit, and an air flow output end of the compressed air pump is communicated with the hollow rotary joint through an air supply pipe; the pressure dividing plate is installed in the rear end of the hollow rotating shaft of the screw drive hollow shaft motor, a plurality of pressure dividing end holes are formed in the pressure dividing plate, the air inlet end of the pressure dividing pipe is communicated with the pressure dividing end holes in the pressure dividing plate, and the air outlet end of the pressure dividing pipe is communicated with the cavity of the screw piece.
5. The stepped powder selecting and bottom powder conveying machine as claimed in claim 4, wherein a diaphragm layer is arranged in the front part inside the screw sheet cavity, and a diaphragm cavity is formed between the diaphragm layer and the front end face inside the screw sheet cavity;
a plurality of pressure dividing end holes with different sizes are arranged on the pressure dividing disc, a plurality of pressure dividing guide pipes with different pore sizes are arranged on the pressure dividing guide pipes, and the pressure dividing guide pipes with different pore sizes are respectively arranged corresponding to the pressure dividing end holes with different sizes;
and the diameter of the partial pressure conduit communicated with the diaphragm cavity in the screw piece is gradually reduced from the rear end to the front end of the stud.
6. The stepped dust and primer conveyor of claim 1 wherein a plurality of said flights have a pitch that gradually decreases from the rear end of the stud to the front end of the stud.
7. The stepped dust selecting and bottom powder conveyor as claimed in claim 1, wherein said grading collection box is provided with a dust removal mechanism comprising a dust removal chamber, a dust removal bag and an exhaust fan; the inner end of the dust removing cavity is communicated with the inside of the grading collecting box, and the outer end of the dust removing cavity is communicated with the air exhaust end of the air exhaust fan through an air exhaust pipeline; the dust removal bag is installed in the dust removal intracavity.
8. The stepped powder selecting and bottom powder conveyor as claimed in claim 7, wherein the dust removing chamber is provided with an access opening, and an access door mechanism is mounted on the access opening; the access door mechanism comprises an access door, an observation window, an observation cleaning brush, an observation cleaning driving handle and an observation cleaning rotating shaft; one side of the access door is hinged with one side of the access opening, and the observation window is arranged on the access door; the observation cleaning rotating shaft is rotatably arranged on the observation window, the observation cleaning brush is positioned at the inner side of the observation window and is tightly attached to the observation window, and the observation cleaning brush is connected with the inner end of the observation cleaning rotating shaft; observe the clearance drive handle and be located the outside of observation window, observe the clearance drive handle with observe the outer end of clearance pivot and be connected.
9. The stepped dust sorting and bottom dust conveyor of claim 8 wherein the door trimming mechanism includes a hold down spring mounted over the outer end of the observation and cleaning shaft and between the outside of the observation window and the observation and cleaning drive handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811156621.3A CN109132616B (en) | 2018-09-30 | 2018-09-30 | Stepped powder selecting and bottom powder conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811156621.3A CN109132616B (en) | 2018-09-30 | 2018-09-30 | Stepped powder selecting and bottom powder conveyor |
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| Publication Number | Publication Date |
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| CN109132616A CN109132616A (en) | 2019-01-04 |
| CN109132616B true CN109132616B (en) | 2020-05-08 |
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| CN201811156621.3A Active CN109132616B (en) | 2018-09-30 | 2018-09-30 | Stepped powder selecting and bottom powder conveyor |
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| CN112124993B (en) * | 2020-08-24 | 2021-12-07 | 九江职业技术学院 | Automatic material distributing device |
| CN112998293A (en) * | 2021-02-26 | 2021-06-22 | 北京东方天合过瘤胃技术研究院有限公司 | Rumen product processing is with raw materials ration feeding device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6067316A (en) * | 1983-09-05 | 1985-04-17 | Seikou Giken Kk | Granular powder carrying screw conveyer for carrying granular powder without residue |
| CN203599051U (en) * | 2013-12-04 | 2014-05-21 | 山东龙泰畜牧机械有限公司 | Three-layer automatic balancing vibration cleaning sieve |
| CN204453911U (en) * | 2015-03-05 | 2015-07-08 | 广东梅雁吉祥水电股份有限公司 | A kind of apparatus of stock house with screening function |
| CN204689160U (en) * | 2015-06-17 | 2015-10-07 | 杨艳虹 | Air blowing type material conveyor |
| CN105398837A (en) * | 2015-11-17 | 2016-03-16 | 嘉善德诺轴承有限公司 | Anti-blockage material conveying device |
| CN205966524U (en) * | 2016-08-18 | 2017-02-22 | 罗平县华跃生态食品有限责任公司 | Hierarchical air classification system of dehydrated vegetable |
| CN107362741A (en) * | 2017-07-27 | 2017-11-21 | 章丘华明水泥新型建材有限公司 | A kind of single-shaft dust wetting stirrer |
| CN207346613U (en) * | 2017-10-26 | 2018-05-11 | 重庆工业职业技术学院 | A kind of oscillating feeder |
| CN207726410U (en) * | 2017-12-26 | 2018-08-14 | 重庆富皇建筑工业化制品有限公司 | A kind of aggregate feeding system |
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