Disclosure of Invention
The invention aims to solve the problem that sieve pores are easy to block when flour is sieved in the prior art, and provides a continuous flour sieving device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a continuous flour screening device comprises a frame and two concentric cylinder screens, wherein more than four partition plates which are uniformly distributed at equal angles are fixedly connected between the two cylinder screens, a plurality of channels with fan-shaped horizontal sections are formed between the cylinder screens and the partition plates, a transmission assembly for driving the cylinder screens to rotate is installed on the frame, an upper plate is rotatably and hermetically connected to the cylinder screens, a lower plate is rotatably and hermetically connected to the lower sides of the cylinder screens, the upper plate and the lower plate are fixedly connected with the frame, a plurality of storage cavities are formed among the upper plate, the cylinder screens, the partition plates and the lower plate, a plurality of connecting pipelines are fixedly connected to the upper part of the upper plate, the connecting pipelines are communicated with two adjacent storage cavities, fans are installed inside the connecting pipelines, one end of the connecting pipeline is sucked and one end of the connecting pipeline is blown by the fans, and a feed inlet is formed in the upper plate, the lower plate is provided with a discharge port.
The transmission assembly comprises a gear ring and a motor fixedly connected to the frame, the gear ring is fixedly connected to the outer circumferential wall of the drum screen positioned on the outer ring, and a gear meshed with the gear ring is fixedly connected to a power output shaft of the motor.
The transmission component comprises a gear ring and a motor fixedly connected on the frame, the gear ring is fixedly connected with the inner circumferential wall of the cylindrical sieve net positioned on the inner ring, and a gear meshed with the gear ring is fixedly connected on a power output shaft of the motor.
The gear ring is fixedly connected to the upper part of the circumferential wall of the cylinder screen.
The upper plate is the disc structure, the hypoplastron is middle hollow ring structure, upper plate below rigid coupling has the housing of gathering materials, the housing parcel of gathering materials a section of thick bamboo screen cloth reaches the hypoplastron, the housing of gathering materials installs the one-way admission valve of a plurality of, the bin outlet extends to the housing outside of gathering materials through arranging the material pipe.
And a negative pressure powder suction device is connected below the aggregate housing.
The upper end and the lower end of the cylinder screen are fixedly connected or integrally formed with annular convex plates, the upper plate and the lower plate are respectively provided with an annular groove matched with the annular convex plates, the annular convex plates are inserted in the annular grooves, balls are arranged between the end parts of the annular convex plates and the annular grooves, and/or sealing rings with O-shaped sections are arranged between the annular convex plates and the annular grooves.
Every two adjacent storage cavities are in one group, and each group of storage cavities corresponds to one connecting pipeline.
Every three is adjacent the storage chamber is a set of, and each group's storage chamber corresponds two connecting tube, two the same storage chamber of end intercommunication of giving vent to anger of connecting tube, two the terminal of breathing in of connecting tube respectively communicates a remaining storage chamber.
Every three is adjacent the storage chamber is a set of, and each group's storage chamber corresponds two connecting tube, two the end intercommunication the same storage chamber of breathing in of connecting tube, two the end of giving vent to anger of connecting tube respectively communicates a remaining storage chamber.
The invention provides a continuous flour screening device, which has the beneficial effects that: this device simple structure, the avoiding sieve mesh that can be better is blockked up, and the in-process of screening can be dredged the sieve mesh to for continuous type screening, be favorable to improving screening efficiency, and the discharge of impurity is more convenient.
Drawings
FIG. 1 is a schematic perspective exploded view of the present invention;
FIG. 2 is an axial half-section schematic view of the present invention;
FIG. 3 is a schematic view of the structure of the lower plate of the present invention;
FIG. 4 is a schematic view of a first connection of the connecting conduit to the storage chamber according to the present invention;
FIG. 5 is a schematic view of a second connection of the connecting conduit to the storage chamber according to the present invention;
fig. 6 is a schematic view of a split type arrangement structure of the drum screen.
In the figure: the device comprises an upper plate 1, a connecting pipeline 2, a feed inlet 3, a partition plate 4, a storage cavity 5, a lower plate 6, a drum screen 7, a gear ring 8, a fan 9, a gear 10, a motor 11, an annular convex plate 12, an annular groove 13, balls 14, an aggregate housing 15, a discharge outlet 16, a discharge pipe 17, a slot 18, a window 19 and a support frame 20.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, a continuous flour screening device, which comprises a frame and two concentric drum screens 7, wherein more than four partition boards 4 which are uniformly distributed at equal angles are fixedly connected between the two drum screens 7, a plurality of channels with fan-shaped horizontal cross sections are formed between the drum screens 7 and the partition boards 4, a transmission assembly for driving the drum screens 7 to rotate is mounted on the frame, an upper plate 1 is rotatably and hermetically connected above the drum screens 7, a lower plate 6 is rotatably and hermetically connected below the drum screens 7, the upper plate 1 and the lower plate 6 are both fixedly connected with the frame, a plurality of storage cavities 5 are formed between the upper plate 1, the drum screens 7, the partition boards 4 and the lower plate 6, a plurality of connecting pipelines 2 are fixedly connected to the upper portion of the upper plate 1, the connecting pipelines 2 are communicated with the adjacent storage cavities 5 through the connecting pipelines 2, a fan 9 is mounted inside the connecting pipelines 2, one end of each connecting pipeline 2 is sucked by the fan 9, One end is blown, because fan 9 sets up between two storage chambeies, partial dust process fan can be carried to inspiratory one end, consequently this fan requires the leakproofness to be good, be favorable to improving fan life, as preferred, the fan setting is in connecting tube 2, the rotating electrical machines setting is outside at connecting tube 2, feed inlet 3 has been seted up to upper plate 1, hypoplastron 6 has seted up a bin outlet 16, feed inlet 3 can not set up the position in same storage chamber with bin outlet 16.
The device drives the cylinder screen 7 to rotate through the transmission component, flour in the storage cavities 5 is driven to do circular motion under the pushing action of the partition plate 4, the flour is quantitatively put into the rotating storage cavities 5 from the feed inlet 3, for convenience of description, referring to figure 4, the flour is put into the storage cavities 5 from the right side, then the flour rotates along with the storage cavities 5, the connecting pipeline 2 is communicated with the two adjacent storage cavities 5, one end of the connecting pipeline 2 sucks air and one end of the connecting pipeline blows air, the storage cavities 5 communicated with the connecting pipeline 2 are in a positive pressure state through the end of the connecting pipeline 2 which blows air, fine flour is carried through air flow to pass through the sieve pores of the cylinder screen 7, the storage cavities 5 communicated with the connecting pipeline 2 which sucks air are in a negative pressure state, outside air flow passes through the sieve pores of the cylinder screen 7 from the outside to enter the storage cavities 5, therefore, blocked sieve pores are opened, and the flour in the storage cavities 5 passes through the positive and negative pressure states for multiple times, the residual impurities with larger particles are retained in the storage cavity and finally discharged through the discharge opening 16, and then the discharged impurities move to the feed opening 3 again to be added with new flour to be screened.
As a first way of connecting the conduit 2 to the storage chamber, reference is made to fig. 4, in which the arrows represent the direction of movement of the air flow: every two adjacent storage chambers 5 are grouped, and each group of storage chambers 5 corresponds to one connecting pipe 2.
As a second way of connecting the conduit 2 to the storage chamber, reference is made to fig. 5, in which the arrows represent the direction of movement of the air flow: every three adjacent storage chamber 5 is a set of, and each group's storage chamber 5 corresponds two connecting tube 2, and the end of giving vent to anger of two connecting tube 2 communicates same storage chamber 5, and the end of breathing in of two connecting tube 2 respectively communicates remaining storage chamber 5, makes one of them storage chamber produce bigger malleation, and this kind of mode of setting is more suitable for the less flour of impurity.
As the second connection mode of connecting tube 2 and storage chamber, not shown in the figure, every three adjacent storage chamber 5 is a set of, and every group storage chamber 5 corresponds two connecting tube 2, and the end of breathing in of two connecting tube 2 communicates same storage chamber 5, and the end of giving vent to anger of two connecting tube 2 respectively communicates a remaining storage chamber 5, and this kind of setting up mode makes one of them storage chamber 5 produce great negative pressure state, relatively is fit for the flour that humidity is great, impurity is more.
Referring to fig. 6, the drum screen 7 includes two ring-shaped support frames 20, the two support frames 20 are fixed together by the partition plates 4, the support frames 20 are provided with slots 18 from top to bottom, a window 19 is arranged between every two partition plates 4 and is opened along the radial direction of the support frame 20, two concentric cylindrical screens with an integral structure are arranged, the cylindrical screens are inserted into the slots 18 to form the drum screen 7, or a plurality of arc-shaped plate-shaped screens are arranged, and one arc-shaped plate-shaped screen is inserted into the slot 18 at the position of each window 19, so that the structure is convenient to install and replace.
A first embodiment of the transmission assembly, with reference to fig. 1-3: the transmission component comprises a gear ring 8 and a motor 11 fixedly connected on the frame, the gear ring 8 is fixedly connected on the outer circumferential wall of the drum screen 7 positioned on the outer ring, a gear 10 meshed with the gear ring 8 is fixedly connected on a power output shaft of the motor 11, and the meshed gear is driven by the motor 11 to rotate so as to enable the drum screen 7 to move relative to the upper plate and the lower plate.
In a second embodiment of the transmission assembly, the transmission assembly includes a gear ring 8 and a motor 11 fixedly connected to the frame, the gear ring 8 is fixedly connected to the inner circumferential wall of the cylindrical screen 7 located at the inner ring, and a gear 10 engaged with the gear ring 8 is fixedly connected to a power output shaft of the motor 11.
Preferably, the gear ring 8 is fixedly connected with the upper part of the circumferential wall of the cylinder screen 7; the upper plate 1 is of a disc structure, the lower plate 6 is of a hollow circular structure, an aggregate housing 15 is fixedly connected below the upper plate 1, the aggregate housing 15 wraps the drum screen 7 and the lower plate 6, the aggregate housing 15 is provided with a plurality of one-way air inlet valves, external gas can conveniently enter the aggregate housing 15, and a discharge port 16 extends to the outside of the aggregate housing 15 through a discharge pipe 17; the negative pressure powder suction equipment is connected below the aggregate housing 15.
Avoid the meticulous flour of screening out to fly away in whole workshop through the cover 15 that gathers materials, inhale the flour that powder equipment collected the cover 15 inside that gathers materials through the negative pressure, make the cover 15 that gathers materials be the negative pressure state, be favorable to collecting the flour that flies away fast, avoid the flour to be inhaled again in the storage chamber 5.
The cylinder screen 7 is connected with the upper plate 1 and the lower plate 6 in a sealing and rotating mode, the upper end and the lower end of the cylinder screen 7 are fixedly connected or integrally formed with annular convex plates 12, annular grooves 13 matched with the annular convex plates 12 are formed in the upper plate 1 and the lower plate 6, the annular convex plates 12 are inserted in the annular grooves 13, balls 14 are arranged between the end portions of the annular convex plates 12 and the annular grooves 13, and/or sealing rings with O-shaped cross sections are arranged between the annular convex plates 12 and the annular grooves 13, the sealing performance is good, the rotating performance is good, the structure is simpler, and the manufacturing cost is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any technical solutions, concepts and designs obtained by equivalent substitutions or changes of the technical solutions and the inventive concepts of the present invention by those skilled in the art within the technical scope of the present invention shall be covered by the scope of the present invention.