CN114789137B - Fodder granule screening machine based on sealwort rhizome - Google Patents
Fodder granule screening machine based on sealwort rhizome Download PDFInfo
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- CN114789137B CN114789137B CN202210715068.2A CN202210715068A CN114789137B CN 114789137 B CN114789137 B CN 114789137B CN 202210715068 A CN202210715068 A CN 202210715068A CN 114789137 B CN114789137 B CN 114789137B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/02—Arrangement of air or material conditioning accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/01—Selective separation of solid materials carried by, or dispersed in, gas currents using gravity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
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- Basic Packing Technique (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a sealwort rhizome based feed particle screening machine, which relates to the field of fine screening of materials and comprises a frame, wherein a hopper is arranged on the frame, a follow-up cylinder is arranged in the middle of the screening cylinder, two adjacent stirring plates are connected through a primary filter screen, an extension plate is arranged on one side wall of the outer side end of each stirring plate, and the outer wall of each extension plate and the end surface of the outer side end of each stirring plate are positioned on the same circumference; at least three groups of air suction holes are arranged on the outer circumferential wall of the follow-up cylinder along the circumferential direction of the follow-up cylinder, each group of air suction holes are distributed between two adjacent stirring plates, the open end of the follow-up cylinder is rotatably connected with the other end of the screening cylinder, and an air suction pipe is arranged on the movable sealing element. The invention adopts the matching of air separation and rotation, removes smaller particles or dust in the slow rotation process of the feed particles, ensures that the feed particles have good palatability, and prevents the phenomena of moisture agglomeration and the like in the packaging or transportation and storage processes.
Description
Technical Field
The invention relates to the technical field of material screening, in particular to a feed particle screening machine based on rhizome of polygonatum.
Background
At present, livestock farmers generally add feed antibiotics into feed to promote growth as health care products, and the risk of superbacteria and the problem of serious environmental pollution caused by the feed antibiotics are challenging the health bottom line of consumers. How to gradually reduce the application amount of antibiotics in the feed and finally eliminate the application of the antibiotics in the feed is a great test facing the breeding industry. Many Chinese herbal medicines contain abundant proteins, vitamins and mineral elements, and have dual functions of drug effect and nutrition. The effect of plant extracts on animal husbandry depends on their digestive absorption and metabolic conversion in the intestinal tract.
Rhizoma polygonati is a polygonatum plant, contains a large amount of starch, sugar, fat, protein, carotene, vitamins and various other nutritional ingredients, contains compounds such as steroid saponin, flavonoid, lignan and the like in rhizome, and has the effects of tonifying qi, moistening lung, nourishing yin, promoting the production of body fluid, tonifying kidney, tonifying spleen, prolonging life and the like when being used as a medicine. The sealwort contains rich polysaccharide, amino acid, protein, polyphenol, total flavone and saponin components, and the components naturally have natural growth promoters for resisting bacteria and viruses and promoting animal growth; meanwhile, the overground stem, leaf and flower parts of the polygonatum contain various mineral elements and nutritional ingredients, but the overground stem and leaf parts of the polygonatum are not good in palatability for livestock, so that the polygonatum can be directly fed or sun-dried, chopped and fed, and the feed intake of the livestock is small.
At present, many farmers adopt a mode of drying in the sun and burning or naturally stacking and rotting to treat the overground part of the polygonatum, thereby causing certain pollution to the environment. Therefore, in order to improve the resource utilization rate of polygonatum plants, the method for preparing high-quality and high-palatability pellet feed by using the rhizomes of polygonatum is the best solution. However, when the polygonatum sibiricum granulated feed is produced and granulated, particles are broken during multi-stage transmission to a bag sealing and packaging process, the feed particles are broken due to extrusion or collision, so that the finished bagged feed is powdery, granular and broken, the phenomena of dust raising, moisture agglomeration, oxidation and the like are easy to occur when the feed is used, and the palatability of the feed is poor.
Disclosure of Invention
The invention aims to provide a feed particle screening machine based on rhizome of polygonatum sibiricum, which aims to solve the problems.
The invention is realized by the following technical scheme:
a fodder particle screening machine based on rhizome of rhizoma polygonati comprises a rack, wherein a hopper is arranged on the rack, a screening cylinder is arranged on the rack, a feeding hole is formed in the upper part of the outer wall of the screening cylinder in the axial direction of the screening cylinder, and a discharging hole is formed in the lower part of the outer wall of the screening cylinder in the axial direction of the screening cylinder;
the middle part of the screening cylinder is provided with a follow-up cylinder with an open end and a closed end, at least three stirring plates are arranged on the outer circumferential wall of the follow-up cylinder along the circumferential direction of the follow-up cylinder, the outer side ends of the stirring plates are matched and contacted with the inner circumferential wall of the screening cylinder, two adjacent stirring plates are connected through a primary filter screen, the middle part of the primary filter screen is bent towards the axial direction of the screening cylinder along the radial direction of the screening cylinder to form an arc shape, one side wall of the outer side end of each stirring plate is provided with an arc-shaped extension plate, and the outer wall of each extension plate and the end surface of the outer side end of each stirring plate are positioned in the same circle;
at least three groups of air suction holes are formed in the circumferential wall of the follow-up cylinder along the circumferential direction of the follow-up cylinder, each group of air suction holes are distributed between two adjacent stirring plates, the closed end of the follow-up cylinder is rotatably arranged on the end part of one end of the screening cylinder, the open end of the follow-up cylinder is rotatably connected with the other end of the screening cylinder through a movable sealing piece, and an air suction pipe communicated with the interior of the follow-up cylinder is arranged on the movable sealing piece.
Aiming at defective goods such as broken grains, powder and the like which are easily generated when rhizome feed particles of rhizoma polygonati are prepared in the prior art and do not meet the storage and transportation requirements, the applicant designs a fine screening machine through long-time research, and removes the broken grains or dust with smaller size in the slow rotation process of the feed particles by adopting the matching of winnowing and rotation modes, thereby ensuring that the feed particles have good palatability and preventing the phenomena of moisture agglomeration and the like in the packaging or transportation and storage processes.
During the operation, the feed particles completing the granulating process enter the feed inlet through the hopper, the follow-up cylinder is rotated at a slow speed to rotate along the clockwise direction, the falling feed particles move to the primary filter screen through a gap between the end part of the extension plate and the side wall of the stirring plate, an external air suction device is started in the process to form an outward discharged airflow in the air suction pipe and the follow-up cylinder, the outward discharged airflow can enable the small-sized particles or dust in the falling process to sequentially enter the follow-up cylinder and the air suction pipe through the air suction holes, solid-gas separation is finally realized after the collection of an external collection cloth bag, the falling feed particles perform arc motion along the arc-shaped primary filter screen due to the synchronous motion of the extension plate and the follow-up cylinder and then are stopped by the inner wall of the extension plate after moving to the end part of the primary filter screen, namely, a screening cavity for the air separation of the feed particles is formed by the area between the arc-shaped extension plate and the arc-shaped primary filter screen, after the first screening cavity rotates to the forward projection area away from the feed inlet, the second screening cavity and the third screening cavity gradually start to perform repeated operation, so that feed particles are subjected to a periodic screening process in the screening cylinder; and the fodder granule in first screening chamber can continue to take place the upset in the screening chamber with follow-up section of thick bamboo pivoted in the lump, the outer air current of arranging in the follow-up section of thick bamboo of upset in-process can continue to collect dust or the detritus that is mingled with in the fodder granule, and when continuing then guaranteeing that the open area between extension board and the stirring board removes to the discharge gate intercommunication, the fodder granule is because its gravity factor falls with a mode comparatively slowly, also accord with the grain type requirement of standard requirement when reducing the cracked probability of the secondary of outer fodder granule of arranging, the fodder granule in first screening chamber is accomplished and is emptyd the back and continue to rotate to realize the continuous screening of fodder granule.
It should be noted that, because the outer side end of the stirring plate and the outer side wall of the extension plate have a certain circumferential length, so that continuous feeding between two adjacent sieving chambers cannot be realized, the technical scheme is optimally designed, namely, the distance between two adjacent stirring plates is increased as much as possible, the circumferential thickness of the stirring plate is reduced, on the premise of maintaining the limit function of the extension plate, the arc length of the primary filter screen is increased, namely, the sieving efficiency of a single sieving chamber is improved, and because the outer wall of the extension plate is arc-shaped, the guide grooves are arranged on the outer side end of the stirring plate and the outer side wall of the extension plate along the circumferential direction of the sieving cylinder, the end part of the guide groove positioned on the outer wall of the extension plate is closed, the end part of the guide groove positioned on the outer wall of the stirring plate is open, namely, when the first sieving chamber is switched with the second sieving chamber, continuously-discharged feed particles can firstly enter the guide groove, then enter the first sieving chamber after being overturned under the driving of the following cylinder, until the second screening chamber is communicated with the feed inlet, the seamless connection of the screening steps of the feed particles at the feed inlet in the plurality of screening chambers is realized.
Wherein, the movable sealing element can guarantee that the follow-up section of thick bamboo is when rotating, and its open end can keep avoiding to the particle and the dust of guaranteeing to collect can normally be arranged outward. Further, feed inlet and discharge gate set up respectively in the upper end and the lower extreme of a screening section of thick bamboo, and correspond with follow-up section of thick bamboo and a plurality of screening chamber, when guaranteeing smooth feeding, guarantee to accomplish the fodder granule of screening in each screening chamber and realize arranging outward completely.
The longitudinal section of each stirring plate is in a fan shape, the central angle corresponding to the arc where the extension plate is located is alpha, the central angle formed between the opposite side walls of every two adjacent stirring plates is beta, and beta is more than 3 alpha and less than 2 beta. Preferably, the longitudinal section of each stirring plate is in a fan shape, a gap is formed between the non-connecting end of each extending plate and the side wall of the corresponding stirring plate, namely the opening part of each screening cavity, the central angle corresponding to the arc where the extending plate is located is alpha, the central angle formed between the opposite side walls of the two adjacent stirring plates is beta, and beta is less than 3 alpha and less than 2 beta, so that the feeding speed and the discharging speed of each screening cavity are matched on the premise of continuously injecting the feed particles, and the feed particles are prevented from remaining after the screening cavities rotate 180 degrees.
A toggle strip is arranged on the outer wall of the extension plate, and the outer side wall of the toggle strip is matched with and contacted with the inner wall of the screening drum; the end face of the toggle strip is flush with the end face of the non-connecting end of the extension plate, the flush end faces of the toggle strip and the extension plate are connected through a transition plate, and the longitudinal section of the transition plate is arc-shaped. Further, the outer side end of the stirring plate and the outer side wall of the extension plate are in contact with the inner wall of the screen cylinder, when the adjacent screening chambers are switched, the outer end faces of the extension plate and the stirring plate easily extrude the downward moving feed particles, therefore, in the technical scheme, the outer wall of the non-connecting end of the extension plate is provided with the poking strip which is contacted with the inner wall of the screening cylinder, the end surface of the poking strip is flush with the end surface of the non-connecting end of the extension plate, and the flush end surfaces of the poking strip and the extension plate are connected through the transition plate, so that gaps are left between the rest part of the outer wall of the extension plate and the outer wall of the stirring plate and the inner wall of the screening cylinder, the stirring strip can effectively reduce the probability of entering scraps or dust into the gaps, meanwhile, the non-connecting end of the toggle strip and the extension plate is connected through a transition plate with a circular arc-shaped longitudinal section, and the transition plate and the poking strip are both made of flexible rubber materials, so that hard collision can be prevented when feed particles are fed.
The outer wall interval of elementary filter screen is provided with a plurality of stupefied strips of rubber parallel with the screening section of thick bamboo axis. As the preferred, set up a plurality of rubber fillet at the interval on primary filter screen, under the impaired prerequisite when avoiding the feed granule to move on primary filter screen, can also increase the upset range of feed granule in the screening chamber to the particle that partly mix with in qualified size or dust are fully drawn by outer exhaust stream.
An inner sleeve coaxial with the follow-up cylinder is arranged in the middle of the follow-up cylinder, two ends of the inner sleeve are sealed, a plurality of partition plates corresponding to the stirring plates are arranged on the outer circumferential wall of the inner sleeve, a space formed between every two adjacent partition plates corresponds to one group of air suction holes, and a sound absorption plate is arranged between every two adjacent partition plates. Furthermore, a plurality of screening cavities are simultaneously screened only by the only outer discharge airflow in the follow-up cylinder, mutual interference is easy to cause, for example, when the outer discharge airflow performs fluid traction on a temporary storage cavity which is not screened, the temporary storage cavity is actually lost, the technical scheme performs deep optimization design on the temporary storage cavity, namely a coaxial inner sleeve is arranged in the middle of the follow-up cylinder, an annular space between the inner sleeve and the follow-up cylinder is an outer discharge airflow moving channel, a plurality of clapboards divide the annular space into drainage areas corresponding to the screening cavities, each drainage area is subjected to independent air extraction treatment, for example, after the first screening cavity rotates to be communicated with the discharge port, the drainage speed of the drainage area corresponding to the screening cavity can be reduced until the first screening cavity is completely separated from the discharge port, namely, the movement of the outer discharge fluid is stopped, and when the first screening cavity is communicated with the feed port again, the movement of the drainage area is started, therefore, the power consumption of the air suction device can be reduced, the air flow in different diversion areas can be prevented from forming flocculation flow in the follow-up cylinder, and the screening efficiency of a single screening cavity is ensured. Wherein, set up detachable acoustic baffle between two adjacent baffles, the size of acoustic baffle allows outer exhaust flow to normally pass through, and then reduces the noise at the screening in-process.
The dynamic sealing piece comprises a dynamic sealing plate, one end of a follow-up cylinder extends outwards after penetrating through the end part of the screening cylinder, an annular groove is formed in the end face of the extending end of the follow-up cylinder, the dynamic sealing plate is rotatably arranged on the annular groove, a driven gear is arranged at one end of a rotating shaft, the other end of the rotating shaft movably penetrates through the dynamic sealing plate and then is fixedly connected with the end part of an inner sleeve, and the air suction pipes with the number corresponding to the number of the partition plates are communicated with the interior of the follow-up cylinder after penetrating through the dynamic sealing plate. Preferably, the two ends of the inner sleeve are fixedly connected with the inner walls of the two ends of the follow-up cylinder, an annular groove is formed in the end face of the extending end of the follow-up cylinder, the movable sealing plate is rotatably arranged on the annular groove, and the movable connecting part of the follow-up cylinder and the screening cylinder is also provided with a movable sealing ring, so that the inside of the screening cylinder keeps closed when the air suction pipe collects dust or particles.
A plurality of air inlets are arranged on the outer wall of the screening cylinder at intervals along the axial direction of the screening cylinder, and each air inlet is communicated with the air outlet end of the air pump through an air inlet channel. Preferably, in the process of turning and screening the feed particles in each screening cavity, the flow of the discharged air flow can be improved and the discharge efficiency can be increased by additionally arranging the plurality of air inlets, and meanwhile, the movement of the particles and dust mixed in the feed particles in the turning state towards the air suction holes can be accelerated.
The secondary screening mechanism comprises a rectangular frame, a secondary filter screen laid on the rectangular frame, a conveyor belt arranged below the secondary filter screen and a U-shaped cover plate, the U-shaped cover plate is used for shielding the upper part of the rectangular frame, U-shaped limiting blocks are respectively arranged on two outer side walls of the rectangular frame, a guide rod is arranged on the frame, the upper end of the guide rod is arranged in a U-shaped area of the limiting block, the bottom of the rectangular frame is connected with the frame through a plurality of springs, a deflection block is rotatably arranged at the bottom of the rectangular frame and used for driving the rectangular frame to do reciprocating motion in the vertical direction; one end of the rectangular frame is arranged under the discharge port, the other end of the rectangular frame is in butt joint with the primary discharge chute, and the discharge end of the conveyor belt is in butt joint with the secondary discharge chute. Furthermore, the screening process finished in the screening cylinder is primary screening, which aims at screening small-size particles and dust, but residual particles which are relatively large in size and do not meet the standard still remain in the feed particles subjected to primary screening, and therefore the technical scheme is used for finishing the secondary screening process of the feed particles through vibration screening; specifically, the fodder granule that shifts out through the discharge gate enters into on secondary screen, produces the ascending vibration of vertical direction through the rotation of polarization piece for incomplete inferior grain moves down to the conveyer belt through secondary screen on, collects in unison behind secondary blown down tank, and the fodder granule that accords with the standard requirement on the secondary screen then collects the processing through elementary blown down tank is unified. It should be noted that the spring is used to achieve flexible contact between the frame and the rectangular frame, and the secondary screen may be a plastic screen with certain strength to reduce the loss rate during secondary screening.
The vibration damping device comprises a frame, a motor fixed on the frame, a primary driving wheel and a secondary driving wheel which are rotatably arranged on the frame and connected through a driving shaft, wherein the output end of the motor is connected with a driving wheel, the driving wheel is connected with the primary driving wheel through a first belt, a driving wheel is arranged on a central shaft of a polarizing block, the secondary driving wheel is connected with the driving wheel through a second belt, a main gear is further arranged on the output end of the motor, and the main gear is connected with a driven gear through a chain. Furthermore, in the technical scheme, the primary screening and the secondary screening share the same motor, and when the primary screening and the secondary screening are arranged on the rack, two belt transmission structures and one chain transmission structure are adopted to realize synchronous motion, wherein the two belt transmission structures are linked through a transmission shaft.
And a plurality of dampers are arranged between the rectangular frame and the frame. Preferably, the arranged damper can avoid that the rack and the fixed part of the rack are greatly influenced when the second-stage vibration screening is carried out, and the working stability of the rack is ensured.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention adopts the matching of winnowing and rotating modes, removes small-size particles or dust in the slow rotating process of the feed particles, ensures that the feed particles have good palatability, and prevents the phenomena of moisture agglomeration and the like in the packaging or transportation and storage processes;
2. according to the invention, the outer side end of the stirring plate and the outer side wall of the extension plate are provided with the guide grooves, the end parts of the guide grooves, which are positioned on the outer wall of the extension plate, are closed, and the end parts of the guide grooves, which are positioned on the outer wall of the stirring plate, are opened, namely when the first screening cavity and the second screening cavity are switched, continuously-fed feed particles can firstly enter the guide grooves, then enter the first screening cavity after being overturned under the drive of the follow-up cylinder until the second screening cavity is communicated with the feed inlet, so that the seamless connection of the screening steps of the feed particles at the feed inlet in the plurality of screening cavities is realized;
3. in the process of turning and screening the feed particles in each screening cavity, the plurality of air inlets are additionally arranged, so that the flow of discharged air flow can be improved, the discharge efficiency can be increased, and the movement of particles and dust mixed in the feed particles in a turning state to the air suction holes can be accelerated.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic structural view of the primary sifting mechanism;
fig. 3 is a rear view of the primary sifting mechanism.
The reference numerals denote: 1-a frame, 2-an air pump, 3-a primary driving wheel, 4-a rotating shaft, 5-a secondary driving wheel, 6-a guide rod, 7-a spring, 8-a limiting block, 9-a primary discharging groove, 10-a secondary screening mechanism, 11-a hopper, 12-an air supply channel, 13-a secondary discharging groove, 14-a damper, 15-a feeding port, 16-a screening cylinder, 17-an air inlet, 18-an agitating plate, 19-a primary filter screen, 20-a rubber fillet, 21-a follow-up cylinder, 22-a discharging port, 23-a transition plate, 24-an agitating bar, 25-an air suction hole, 26-an acoustic board, 27-an inner sleeve, 28-a partition board, 29-a movable sealing plate, 30-an air suction pipe and 31-a rotating shaft, 32-driven gear.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention. It should be noted that the present invention is in practical development and use.
Example 1
As shown in fig. 1 to 3, the present embodiment includes a frame 1, a hopper 11 is disposed on the frame 1, a screening drum 16 is disposed on the frame 1, a feed inlet 15 is disposed at an upper portion of an outer wall of the screening drum 16 along an axial direction of the screening drum, and a discharge outlet 22 is disposed at a lower portion of the outer wall of the screening drum 16 along the axial direction of the screening drum;
a follow-up cylinder 21 with an open end and a closed end is arranged in the middle of the screening cylinder 16, at least three stirring plates 18 are arranged on the outer circumferential wall of the follow-up cylinder 21 along the circumferential direction of the follow-up cylinder 21, the outer side ends of the stirring plates 18 are matched and contacted with the inner circumferential wall of the screening cylinder 16, two adjacent stirring plates 18 are connected through a primary filter screen 19, the middle of the primary filter screen 19 is bent towards the axial direction of the screening cylinder 16 along the radial direction of the screening cylinder, an arc-shaped extension plate is arranged on one side wall of the outer side end of each stirring plate 18, and the outer wall of each extension plate and the end face of the outer side end of the stirring plate 18 are located in the same circle;
at least three groups of air suction holes 25 are formed in the outer circumferential wall of the follow-up cylinder 21 along the circumferential direction, each group of air suction holes 25 is distributed between two adjacent stirring plates 18, the closed end of the follow-up cylinder 21 is rotatably arranged at one end of the screening cylinder 16, the open end of the follow-up cylinder 21 is rotatably connected with the other end of the screening cylinder 16 through a movable sealing piece, and an air suction pipe 30 communicated with the interior of the follow-up cylinder 21 is arranged on the movable sealing piece.
During the operation, the feed particles completing the pelletization process enter the feed inlet 15 through the hopper 11, the follower cylinder 21 is rotated at a slow speed, the follower rotates clockwise, the falling feed particles move to the primary filter screen 19 through the gap between the end of the extension plate and the side wall of the stirring plate 18, the external air suction device is started in the process, an outward discharge airflow is formed in the air suction pipe 30 and the follower cylinder 21, the outer discharge airflow can enable the smaller-sized particles or dust in the falling process to sequentially enter the follower cylinder 21 and the air suction pipe 30 through the air suction holes 25, solid-gas separation is finally realized after the particles are collected by the external collection cloth bag, the falling feed particles perform arc motion along the arc-shaped primary filter screen 19 due to the synchronous motion of the extension plate and the follower cylinder 21, and then the falling feed particles move to the end of the primary filter screen 19 and are blocked by the inner wall of the extension plate, namely, the area between the arc-shaped extension plate and the arc-shaped primary filter screen 19 forms a screened feed particle after air separation A cavity, after the first screening cavity rotates to the forward projection area away from the feed inlet 15, the second and third screening cavities gradually start to repeat operation, so that feed particles are subjected to a periodic screening process in the screening drum 16; and the fodder granule in the first screening chamber can continue to take place the upset in the screening chamber with follow-up section of thick bamboo 21 rotation in the lump, the outer discharge air current in the follow-up section of thick bamboo 21 can continue to collect the dust or the detritus that is mingled with in the fodder granule in the upset in-process, continue then guarantee that the open area between extension board and the stirring board 18 moves to discharge gate 22 when communicating, the fodder granule is because its gravity factor falls with a mode of slowing down comparatively, also accord with the grain type requirement that the standard required when reducing outer discharge fodder granule's secondary fragmentation probability, the fodder granule in the first screening chamber finishes to empty the back and continues to rotate to realize the continuous screening of fodder granule.
It should be noted that, because the outer side end of the stirring plate 18 and the outer side wall of the extension plate have a certain circumferential length, so that continuous feeding cannot be realized between two adjacent sieving chambers, the technical scheme is optimally designed, that is, the distance between two adjacent stirring plates 18 is increased as much as possible, the circumferential thickness of the stirring plate 18 is reduced, and on the premise of maintaining the limit function of the extension plate, the arc length of the primary filter screen 19 is increased, that is, the sieving efficiency of a single sieving chamber is improved, and because the outer wall of the extension plate is arc-shaped, guide grooves are arranged on the outer side end of the stirring plate 18 and the outer side wall of the extension plate along the circumferential direction of the sieving cylinder 16, the end part of the guide groove on the outer wall of the extension plate is closed, the end part of the guide groove on the outer wall of the stirring plate 18 is open, that is, that when the first sieving chamber and the second sieving chamber are switched, continuously blanked feed particles can firstly enter the guide groove, then, the feed particles are driven by the follow-up barrel 21 to turn over and then enter the first screening cavity until the second screening cavity is communicated with the feed inlet 15, so that the seamless connection of the screening steps of the feed particles at the feed inlet 15 in the plurality of screening cavities is realized.
The movable sealing element can ensure that the open end of the follow-up barrel 21 can be kept closed while the follow-up barrel rotates, so that collected particles and dust can be discharged normally. Further, feed inlet 15 and discharge gate 22 set up respectively in the upper end and the lower extreme of a screening section of thick bamboo 16, and correspond with follow-up section of thick bamboo 21 and a plurality of screening chamber, when guaranteeing smooth feeding, guarantee that the fodder granule of accomplishing the screening in each screening chamber realizes arranging outward completely.
In order to avoid that the outer end faces of the extension plate and the stirring plate 18 easily extrude downward moving feed particles when the adjacent screening chambers are switched, the present embodiment is further designed with another protection measure, that is:
a toggle strip 24 is arranged on the outer wall of the extension plate, and the outer side wall of the toggle strip 24 is matched with and contacted with the inner wall of the screening drum 16; the end face of the toggle bar 24 is flush with the end face of the non-connecting end of the extension plate, the flush end faces of the toggle bar and the extension plate are connected through a transition plate 23, and the longitudinal section of the transition plate 23 is arc-shaped; be provided with on the non-link end outer wall of extension board with 16 inner wall contact stir strip 24, stir the terminal surface of strip 24 and extend the non-link end terminal surface of board flush and pass through cab apron 23 at the terminal surface that both flush and be connected, make and leave the clearance between the outer wall remainder of extension board and the outer wall of stirring board 18 and the 16 inner walls of screen cylinder, stir strip 24 and effectively reduce the piece or the dust and get into the probability in the clearance, stir strip 24 simultaneously and extend the non-link end of board and be convex through longitudinal section and cross cab apron 23 and be connected, and cross cab apron 23 and stir strip 24 and all adopt flexible rubber material to make, can prevent to take place rigid collision when the fodder granule unloading.
Preferably, a plurality of rubber fillets 20 are arranged on the primary filter screen 19 at intervals, so that the overturning amplitude of the feed particles in the screening cavity can be increased on the premise of avoiding damage of the feed particles when the feed particles move on the primary filter screen 19, and the feed particles or dust partially mixed in the qualified size can be conveniently and fully drawn by the discharged air flow.
Preferably, the longitudinal section of each stirring plate 18 is fan-shaped, a gap is formed between the non-connecting end of each extending plate and the side wall of the corresponding stirring plate 18, namely the opening part of the screening cavity, the central angle corresponding to the arc where the extending plate is located is alpha, the central angle formed between the opposite side walls of the two adjacent stirring plates 18 is beta, and beta is less than 3 alpha and less than 2 beta, so that the feeding speed and the discharging speed of each screening cavity are matched on the premise of continuously injecting the feed particles, and the feed particles are prevented from remaining after the screening cavity rotates 180 degrees.
Preferably, in the process of turning and screening the feed particles in each screening cavity, by additionally arranging the plurality of air inlets 17 and the plurality of air supply channels 12, the formed plurality of air supply channels can improve the flow rate of discharged air flow, increase the discharge efficiency, and accelerate the movement of particles and dust mixed in the feed particles in a turning state towards the air suction holes 25.
Example 2
As shown in fig. 1 to fig. 3, in this embodiment, on the basis of embodiment 1, a plurality of sieving chambers are sieved simultaneously only by means of a unique external air flow inside the following cylinder 21, which is easy to cause mutual interference, for example, when the external air flow draws a fluid in a temporary storage chamber that is not sieved, the temporary storage chamber is actually empty, and for this reason, the present embodiment performs a deep optimization design on the temporary storage chamber, that is:
the coaxial inner sleeve 27 is arranged in the middle of the follow-up cylinder 21, an annular space between the inner sleeve 27 and the follow-up cylinder 21 is an external air flow moving channel, the annular space is divided into drainage areas corresponding to the screening cavities through a plurality of partition plates 28, each drainage area is subjected to independent air extraction treatment, if a first screening cavity rotates to be communicated with the discharge hole 22, the drainage speed of the drainage area corresponding to the screening cavity can be reduced until the first screening cavity is completely separated from the discharge hole 22, namely the movement of an external drainage fluid is stopped, and when the first screening cavity returns to be communicated with the feed hole 15 again, the movement of the external air flow of the drainage area is started, so that the power consumption of air suction equipment can be reduced, the air flow in different drainage areas can be prevented from forming flocculent flow in the follow-up cylinder 21, and the screening efficiency of a single screening cavity is guaranteed. Wherein, set up the detachable acoustic baffle 26 between two adjacent baffles 28, the size of acoustic baffle 26 allows the efflux to normally pass through, and then reduce the noise in the screening process.
Preferably, both ends of the inner sleeve 27 are fixedly connected with the inner walls of both ends of the follower cylinder 21, an annular groove is formed on the end surface of the extending end of the follower cylinder 21, a movable sealing plate 29 is rotatably arranged on the annular groove, and a movable connecting part of the follower cylinder 21 and the screen cylinder 16 is also provided with a movable sealing ring, so that the inside of the screen cylinder 16 is kept closed when the air suction pipe 30 is used for collecting dust or particles.
Example 3
As shown in fig. 1 to 3, in this embodiment, on the basis of embodiment 1, a secondary screening mechanism 10 is arranged on a rack 1, the secondary screening mechanism 10 includes a rectangular frame, a secondary filter screen laid on the rectangular frame, a conveyor belt arranged below the secondary filter screen, and a U-shaped cover plate, the U-shaped cover plate is used for shielding the upper side of the rectangular frame, U-shaped limiting blocks 8 are respectively arranged on two outer side walls of the rectangular frame, a guide rod 6 is arranged on the rack 1, the upper end of the guide rod is arranged in the U-shaped area of the limiting block 8, the bottom of the rectangular frame is connected with the rack 1 through a plurality of springs 7, a deflection block is rotatably arranged at the bottom of the rectangular frame, and the deflection block is used for driving the rectangular frame to reciprocate in the vertical direction; one end of the rectangular frame is arranged right below the discharge port 22, the other end of the rectangular frame is in butt joint with the primary discharge chute 9, and the discharge end of the conveyor belt is in butt joint with the secondary discharge chute 13.
The screening process finished in the screening drum 16 is primary screening, which aims at screening small-sized particles and dust, but residual particles which are relatively large in size and do not meet the standard still remain in the feed particles subjected to primary screening, and therefore, the technical scheme finishes a secondary screening process of the feed particles by vibration screening; specifically, the feed particles moved out through the discharge port 22 enter the secondary screen mesh, and the rotation of the polarization block generates vibration in the vertical direction, so that the defective particles move downwards to the conveyor belt through the secondary screen mesh, are collected uniformly through the secondary discharge chute 13, and the feed particles meeting the standard requirements on the secondary screen mesh are collected uniformly through the primary discharge chute 9. It should be noted that the spring 7 is used to achieve flexible contact between the frame 1 and the rectangular frame, and the secondary screen may be a plastic screen with certain strength to reduce the loss rate during secondary screening.
In the embodiment, the primary screening process and the secondary screening process share the same transmission mechanism, namely, the transmission mechanism comprises a motor fixed on a frame 1, a primary driving wheel 3 and a secondary driving wheel 5 which are rotatably arranged on the frame 1 and connected through a transmission shaft, the output end of the motor is connected with a driving wheel, the driving wheel is connected with the primary driving wheel 3 through a first belt, a driving wheel is arranged on a central shaft of a polarizing block, the secondary driving wheel 5 is connected with the driving wheel through a second belt, the output end of the motor is further provided with a main gear, and the main gear is connected with a driven gear 32 through a chain. When the machine frame 1 is arranged, two belt transmission structures and a chain transmission structure are adopted to realize synchronous motion, wherein the two belt transmission structures are linked through a transmission shaft.
Preferably, the damper 14 is provided to prevent the frame 1 and the fixed parts of the frame 1 from being greatly affected when the second-stage vibration screening is performed, and to ensure the stability of the operation thereof.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a fodder granule screening machine based on sealwort rhizome, includes frame (1), is equipped with hopper (11) on frame (1), its characterized in that: a screening cylinder (16) is arranged on the frame (1), a feed inlet (15) is formed in the upper part of the outer wall of the screening cylinder (16) along the axial direction of the screening cylinder, and a discharge outlet (22) is formed in the lower part of the outer wall of the screening cylinder (16) along the axial direction of the screening cylinder;
a follow-up cylinder (21) with an open end and a closed end is arranged in the middle of the screening cylinder (16), at least three stirring plates (18) are arranged on the outer circumferential wall of the follow-up cylinder (21) along the circumferential direction of the follow-up cylinder (21), the outer side ends of the stirring plates (18) are matched with and contacted with the inner circumferential wall of the screening cylinder (16), two adjacent stirring plates (18) are connected through a primary filter screen (19), the middle part of the primary filter screen (19) is bent into an arc shape along the radial direction of the screening cylinder (16) towards the axial direction of the screening cylinder, an arc-shaped extension plate is arranged on one side wall of the outer side end of each stirring plate (18), and the outer wall of each extension plate and the end face of the outer side end of the stirring plate (18) are located on the same circumference;
at least three groups of air suction holes (25) are formed in the outer circumferential wall of the follow-up cylinder (21) along the circumferential direction, each group of air suction holes (25) are distributed between two adjacent stirring plates (18), the closed end of the follow-up cylinder (21) is rotatably arranged at one end of the screening cylinder (16), the open end of the follow-up cylinder (21) is rotatably connected with the other end of the screening cylinder (16) through a movable sealing piece, and an air suction pipe (30) communicated with the interior of the follow-up cylinder (21) is arranged on the movable sealing piece;
a plurality of rubber fillets (20) parallel to the axis of the screening cylinder (16) are arranged on the outer wall of the primary filter screen (19) at intervals;
an inner sleeve (27) coaxial with the follow-up cylinder (21) is arranged in the middle of the follow-up cylinder, two ends of the inner sleeve (27) are sealed, a plurality of partition plates (28) corresponding to the stirring plates (18) are arranged on the outer circumferential wall of the inner sleeve (27), a space formed between every two adjacent partition plates (28) corresponds to one group of air suction holes, and a sound absorption plate (26) is arranged between every two adjacent partition plates (28).
2. The sealwort rhizome based feed particle screening machine according to claim 1, which is characterized in that: the longitudinal section of each stirring plate (18) is fan-shaped, the central angle corresponding to the arc where each extending plate is located is alpha, the central angle formed between the opposite side walls of every two adjacent stirring plates (18) is beta, and beta is less than 3 alpha and less than 2 beta.
3. The sealwort rhizome based feed particle screening machine according to claim 2, characterized in that: a toggle strip (24) is arranged on the outer wall of the extension plate, and the outer side wall of the toggle strip (24) is matched with and contacted with the inner wall of the screening drum (16); the end face of the toggle bar (24) is flush with the end face of the non-connecting end of the extension plate, the flush end faces of the toggle bar and the extension plate are connected through a transition plate (23), and the longitudinal section of the transition plate (23) is arc-shaped.
4. The sealwort rhizome based feed particle screening machine according to claim 1, which is characterized in that: move the sealing member and include dynamic seal board (29), the one end activity of follow-up section of thick bamboo (21) is run through sieve section of thick bamboo (16) tip and is extended outward, and be equipped with the annular groove on the extension end terminal surface of follow-up section of thick bamboo (21), dynamic seal board (29) rotate to be set up on the annular groove, pivot (31) one end is equipped with driven gear (32), pivot (31) other end activity run through dynamic seal board (29) back and inner skleeve (27) tip fixed connection, breathing pipe (30) that set up number and baffle (28) number and correspond run through dynamic seal board (29) back and follow-up section of thick bamboo (21) inside intercommunication.
5. The sealwort rhizome based feed particle screening machine according to claim 1, which is characterized in that: a plurality of air inlets (17) are arranged on the outer wall of the screening drum (16) at intervals along the axial direction of the screening drum, and each air inlet (17) is communicated with the air outlet end of the air pump (2) through an air supply channel (12).
6. The sealwort rhizome based feed particle screening machine according to any one of claims 1 to 5, wherein: the secondary screening mechanism (10) is arranged on the rack (1), the secondary screening mechanism (10) comprises a rectangular frame, a secondary filter screen laid on the rectangular frame, a conveyor belt arranged below the secondary filter screen and a U-shaped cover plate, the U-shaped cover plate is used for shielding the upper side of the rectangular frame, U-shaped limiting blocks (8) are respectively arranged on two outer side walls of the rectangular frame, a guide rod (6) with the upper end arranged in a U-shaped area of the limiting block (8) is arranged on the rack (1), the bottom of the rectangular frame is connected with the rack (1) through a plurality of springs (7), a deflection block is rotatably arranged at the bottom of the rectangular frame and is used for driving the rectangular frame to do reciprocating motion in the vertical direction; one end of the rectangular frame is arranged right below the discharge port (22), the other end of the rectangular frame is in butt joint with the primary discharge chute (9), and the discharge end of the conveyor belt is in butt joint with the secondary discharge chute (13).
7. The sealwort rhizome based feed particle screening machine according to claim 6, which is characterized in that: the automatic polarizing machine further comprises a motor fixed on the rack (1), a primary driving wheel (3) and a secondary driving wheel (5) which are rotatably arranged on the rack (1) and connected through a driving shaft, a driving wheel is connected to the output end of the motor and connected with the primary driving wheel (3) through a first belt, a driving wheel is arranged on a central shaft of the polarizing block, the secondary driving wheel (5) is connected with the driving wheel through a second belt, a main gear is further arranged on the output end of the motor and connected with a driven gear (32) through a chain.
8. The sealwort rhizome based feed particle screening machine according to claim 6, wherein: a plurality of dampers (14) are arranged between the rectangular frame and the frame (1).
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| CN202210715068.2A CN114789137B (en) | 2022-06-23 | 2022-06-23 | Fodder granule screening machine based on sealwort rhizome |
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| CN202210715068.2A CN114789137B (en) | 2022-06-23 | 2022-06-23 | Fodder granule screening machine based on sealwort rhizome |
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| CN117943288A (en) * | 2023-03-06 | 2024-04-30 | 安徽省本草国药饮片有限公司 | Medicinal material sorting equipment for producing traditional Chinese medicine decoction pieces |
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| NL8006283A (en) * | 1980-11-18 | 1982-06-16 | Jacob Pieter Huisman | SEMI-HARD OR HARD CHEESE WITH OPEN CYLINDRICAL SHAPE AND METHOD OF PREPARATION THEREOF. |
| JP3725969B2 (en) * | 1997-10-02 | 2005-12-14 | ゼムコインタナショナル株式会社 | Garbage collection device for construction waste dust collector |
| JP4049918B2 (en) * | 1999-01-13 | 2008-02-20 | 株式会社タイガーカワシマ | Three-stage sorter for grains |
| JP4975709B2 (en) * | 2008-09-26 | 2012-07-11 | 株式会社セイシン企業 | Sheave cleaning method and apparatus |
| JP5431819B2 (en) * | 2009-07-27 | 2014-03-05 | 帝人株式会社 | Pellet fine powder removal device |
| UA113566C2 (en) * | 2015-06-05 | 2017-02-10 | METHOD OF SEPARATION OF LIQUID MIXTURE AND DEVICES FOR ITS PERFORMANCE | |
| CN207592253U (en) * | 2017-04-12 | 2018-07-10 | 上海华济健康产业有限公司 | A kind of energy-efficient removal of impurities screening plant of Radix Notoginseng seed |
| CN208449900U (en) * | 2018-05-24 | 2019-02-01 | 安徽金麦乐面业有限公司 | A kind of wheat grain screening plant |
| CN211160001U (en) * | 2018-09-12 | 2020-08-04 | 河北海燕农牧有限公司 | Production and processing device of protein mulberry feed |
| CN110976263B (en) * | 2019-12-13 | 2022-06-17 | 安徽骏马新材料科技股份有限公司 | Red lead semi-manufactured goods production is with screening plant |
| CN212596926U (en) * | 2020-05-18 | 2021-02-26 | 内蒙古蒙苒生物科技有限公司 | Stifled type sieving mechanism is prevented to fertilizer |
| CN112292956A (en) * | 2020-10-29 | 2021-02-02 | 大竹县万康生态农业有限公司 | Soil improvement method |
| CN112295889B (en) * | 2020-11-14 | 2021-08-20 | 淮阴工学院 | A screening plant for producing carbon adsorbent |
| CN113171877B (en) * | 2021-06-30 | 2021-08-24 | 西南交通大学 | Aggregate screening plant is retrieved to building |
| CN215744825U (en) * | 2021-09-10 | 2022-02-08 | 四川更有面生物技术有限公司 | Rice edulcoration device |
| CN114101059B (en) * | 2021-11-22 | 2022-09-27 | 中国建筑第二工程局有限公司 | Building rubbish aggregate screening plant |
| CN114212542B (en) * | 2021-12-16 | 2023-09-22 | 湘潭新云科技有限责任公司 | Negative pressure type filling mechanism for guaranteeing uniform distribution of filling powder density |
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