阅读说明：本技术 一种生物降解塑料颗粒用对流型干燥器 (Biodegradable plastic granules is with convection type desicator ) 是由 林珍华 于 2021-10-08 设计创作，主要内容包括：本发明公开了一种生物降解塑料颗粒用对流型干燥器,属于生物降解塑料干燥领域,一种生物降解塑料颗粒用对流型干燥器,包括对流干燥器本体,对流干燥器本体内固定安装有吸尘扩散干燥袋,吸尘扩散干燥袋上下两内壁均转动连接有扩散对流风罩,可以通过扩散对流风罩和对流隔离干燥系统的配合,能够使生物降解塑料颗粒在吸尘扩散干燥袋内呈悬浮分离状态,进而有效实现生物降解塑料颗粒的对流式悬浮隔离干燥,进而减少生物降解塑料颗粒之间接触以及其吸尘扩散干燥袋的接触,减少生物降解塑料颗粒在干燥时壁面粘接灰尘和杂质的概率,有效避免生物降解塑料颗粒出现被污染的状况,提高对流干燥器本体的干燥质量。(The invention discloses a convection dryer for biodegradable plastic particles, which belongs to the field of biodegradable plastic drying and comprises a convection dryer body, wherein a dust absorption diffusion drying bag is fixedly arranged in the convection dryer body, the upper inner wall and the lower inner wall of the dust absorption diffusion drying bag are respectively and rotatably connected with a diffusion convection fan cover, the biodegradable plastic particles can be in a suspension separation state in the dust absorption diffusion drying bag through the matching of the diffusion convection fan cover and a convection isolation drying system, so that the convection suspension isolation drying of the biodegradable plastic particles is effectively realized, the contact among the biodegradable plastic particles and the contact of the dust absorption diffusion drying bag are further reduced, the probability of dust and impurities on the wall surfaces of the biodegradable plastic particles during drying is reduced, and the pollution condition of the biodegradable plastic particles is effectively avoided, the drying quality of the convection dryer body is improved.)

1. The utility model provides a biodegradable plastic granules is with convection type desicator, includes convection dryer body (1), its characterized in that: the convection dryer is characterized in that a dust collection diffusion drying bag (2) is fixedly mounted in the convection dryer body (1), the upper inner wall and the lower inner wall of the dust collection diffusion drying bag (2) are rotatably connected with a diffusion convection fan cover (3), one end, far away from the dust collection diffusion drying bag (2), of the diffusion convection fan cover (3) is rotatably connected with a hot air transfer hollow ring (4) communicated with the diffusion convection fan cover, one end, far away from the diffusion convection fan cover (3), of the hot air transfer hollow ring (4) extends to the outer side of the convection dryer body (1), and the outer end of the hot air transfer hollow ring (4) is located at the lower side and is connected with a magnetic cyclone assembly (5) matched with the diffusion convection fan cover (3);

convection current desicator body (1) outer end fixed mounting has the convection current drying controller, it keeps apart drying system to be provided with the convection current in the convection current drying controller, drying system is kept apart including dry control processing unit to the convection current, dry control processing unit's input is connected with dry temperature sensing unit and biodegradable plastic granules parameter statistics unit respectively, dry control processing unit's output is connected with hot-blast pressure control unit and whirl diffusion the control unit respectively, the output of hot-blast pressure control unit cooperatees with hollow ring (4) in the hot-blast transmission, whirl diffusion the control unit's output cooperatees with magnetic force whirl subassembly (5).

2. A convection dryer for biodegradable plastic granules, as claimed in claim 1, wherein: magnetic force whirl subassembly (5) is including concave type tray (501), is located the downside the hollow ring of hot-blast transmission (4) outer end fixedly connected with concave type tray (501), a section of thick bamboo (502) are found in a plurality of electromagnetic conduction of concave type tray (501) upper end fixedly connected with, install solenoid in a section of thick bamboo (502) is found in the electromagnetic conduction, solenoid passes through wire and whirl diffusion the control unit electric connection, is located the downside diffusion convection fan housing (3) lower extreme fixedly connected with a plurality of strip permanent magnetism blocks (503), and a plurality of electromagnetic conduction found a section of thick bamboo (502) and a plurality of strip permanent magnetism blocks (503) and be the interval and set up.

3. A convection dryer for biodegradable plastic granules, as claimed in claim 2, characterized in that: the upper end of the concave tray (501) is fixedly connected with a magnetic expansion arc piece (504), the magnetic expansion arc piece (504) is matched with the strip-shaped permanent magnet blocks (503), and the lower end of the magnetic expansion arc piece (504) is fixedly connected with the electromagnetic coil through a magnetic conductive strip.

4. A convection dryer for biodegradable plastic granules, as claimed in claim 1, wherein: diffusion arc chamber (301) of putting through mutually with hot-blast transfer hollow ring (4) are seted up in diffusion convection fan housing (3), a plurality of perpendicular induced air holes (302) have all been seted up near dust absorption diffusion drying bag (2) one end in diffusion convection fan housing (3), and perpendicular induced air hole (302) and diffusion arc chamber (301) put through mutually, perpendicular induced air hole (302) are close to dust absorption diffusion drying bag (2) one end fixedly connected with one-way ventilated membrane.

5. A convection dryer for biodegradable plastic granules, as claimed in claim 1, wherein: diffusion convection fan housing (3) one end fixedly connected with ventilation pole (401) rather than the switch-on of mutually keeping away from in hot-blast transmission cavity ring (4), diffusion convection fan housing (3) one end fixedly connected with draws ring (402) rather than the equal wind of mutually switching-on is kept away from in ventilation pole (401), the equal wind draws the input fixedly connected with air regulation pipe of ring (402), install automatically controlled valve on the air regulation pipe, automatically controlled valve passes through wire and hot-blast pressure the control unit electric connection.

6. A convection dryer for biodegradable plastic granules, as claimed in claim 5, wherein: convection current dryer body (1) upper end fixedly connected with and dust absorption diffusion drying bag (2) inlet pipe (101) of switch-on mutually, convection current dryer body (1) lower extreme fixedly connected with and dust absorption diffusion drying bag (2) meet and lead to discharging pipe (102), inner wall fixedly connected with is located dust separation lag (103) in the magnetic force whirl subassembly (5) outside under convection current dryer body (1), the inside fixed mounting of dust absorption diffusion drying bag (2) has temperature-sensing probe, temperature-sensing probe passes through wire and dry temperature induction unit electric connection.

7. A convection dryer for biodegradable plastic granules, as claimed in claim 6, characterized in that: two hot-blast transmission cavity ring (4) set up respectively in corresponding inlet pipe (101) and discharging pipe (102) outside, the equal fixedly connected with air of inlet pipe (101) and discharging pipe (102) inner wall pushes away shape ring (404), and air pushes away shape ring (404) and draw ring (402) to switch on mutually through tubule and equal wind.

8. A convection dryer for biodegradable plastic granules, as claimed in claim 7, wherein: the inner end of the air-pushing deformation ring (404) is connected with a plurality of closed arc sheets (405) in a sliding mode, and the outer ends of the closed arc sheets (405) are fixedly connected with a plurality of arc-shaped air supporting bars (406) communicated with the air-pushing deformation ring (404).

9. A convection dryer for biodegradable plastic granules, as claimed in claim 1, wherein: the dust collection diffusion drying bag is characterized in that a flexible electrostatic adsorption ring (201) is fixedly connected to the middle of the dust collection diffusion drying bag (2), a honeycomb hole adsorption sleeve (202) is fixedly connected to the inside of the flexible electrostatic adsorption ring (201), and a plurality of electrostatic transfer strips (203) are fixedly connected to the inner wall of the honeycomb hole adsorption sleeve (202).

10. A convection dryer for biodegradable plastic granules, as claimed in claim 9, wherein: the output end of the drying control processing unit is also connected with an electrostatic adsorption unit, and the output end of the electrostatic adsorption unit is electrically connected with an electrostatic transfer strip (203) through a lead.

Technical Field

The invention relates to the field of biodegradable plastic drying, in particular to a convection type dryer for biodegradable plastic particles.

Background

Biodegradable plastics refer to a class of plastics that are degraded by the action of microorganisms such as bacteria, molds (fungi), and algae that exist in nature. The ideal biodegradable plastic is a high molecular material which has excellent service performance, can be completely decomposed by environmental microorganisms after being discarded, and is finally inorganic to become a component of carbon circulation in nature. "paper" is a typical biodegradable material, while "synthetic plastics" is a typical polymeric material. Therefore, biodegradable plastics are polymeric materials having both the properties of "paper" and "synthetic plastics".

The biodegradable plastic is prepared by compounding various materials and is mainly processed by the steps of melting and mixing by melting equipment, extruding into strips by an extruding device, cooling and shaping by a cooling device, cutting and granulating by a granulating device, drying and dehydrating by a dryer and the like. The dryer mainly comprises a heating dryer and a freeze dryer according to the drying principle, wherein the heating dryer is directly separated from moisture in the dried material in a heat drying mode to achieve the material drying effect.

At present, adopt hot-blast formula desicator to dry biodegradable plastic granules more, take away the moisture on biodegradable plastic granules surface through hot-blast in order to reach dry effect, but at biodegradable plastic granules carry out the in-process of hot drying, because the high surface that easily makes biodegradable plastic granules of temperature softens, easily make remaining impurity or dust adhesion in the desicator on biodegradable plastic granules surface, cause the pollution to biodegradable plastic granules, and then reduce biodegradable plastic granules's purity, reduce the drying quality of desicator.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a convection type dryer for biodegradable plastic particles, which can enable the biodegradable plastic particles to be in a suspension separation state in a dust absorption diffusion drying bag through the matching of a diffusion convection fan cover and a convection isolation drying system, further effectively realize the convection type suspension isolation drying of the biodegradable plastic particles, further reduce the contact between the biodegradable plastic particles and the contact of the dust absorption diffusion drying bag, reduce the probability of adhering dust and impurities on the wall surface of the biodegradable plastic particles during drying, effectively avoid the pollution of the biodegradable plastic particles, improve the drying quality of a convection dryer body, adsorb the dust and the impurities mixed in the biodegradable plastic particles under the matching of the dust absorption diffusion drying bag, and reduce the content of the dust and the impurities in the biodegradable plastic particles, effectively ensures the purity of the biodegradable plastic particles and improves the quality of the biodegradable plastic particles.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A convection dryer for biodegradable plastic particles comprises a convection dryer body, wherein a dust collection diffusion drying bag is fixedly installed in the convection dryer body, the upper inner wall and the lower inner wall of the dust collection diffusion drying bag are both rotatably connected with diffusion convection hoods, one ends, far away from the dust collection diffusion drying bag, of the diffusion convection hoods are rotatably connected with hot air transfer hollow rings communicated with the diffusion convection drying bags, one ends, far away from the diffusion convection hoods, of the hot air transfer hollow rings extend to the outer side of the convection dryer body, and the outer ends, located on the lower side, of the hot air transfer hollow rings are connected with magnetic cyclone assemblies matched with the diffusion convection hoods;

the convection drying device is characterized in that a convection drying controller is fixedly mounted at the outer end of the convection drying device body, a convection isolation drying system is arranged in the convection drying controller and comprises a drying control processing unit, the input end of the drying control processing unit is respectively connected with a drying temperature sensing unit and a biodegradable plastic particle parameter statistical unit, the output end of the drying control processing unit is respectively connected with a hot air pressure control unit and a rotational flow diffusion control unit, the output end of the hot air pressure control unit is matched with a hot air transmission hollow ring, the output end of the rotational flow diffusion control unit is matched with a magnetic rotational flow component, and the biodegradable plastic particles can be in a suspension separation state in a dust absorption diffusion drying bag through the matching of a diffusion convection fan cover and the convection isolation drying system, so that the convection suspension isolation drying of the biodegradable plastic particles is effectively realized, and then reduce the contact between the biodegradable plastic granules and the contact of its dust absorption diffusion drying bag, reduce the probability that biodegradable plastic granules wall bonded dust and impurity when dry, effectively avoid biodegradable plastic granules contaminated situation to appear, improve the drying quality of convection current desicator body, and can adsorb dust and impurity that mix with in the biodegradable plastic granules under the cooperation of dust absorption diffusion drying bag, reduce the content of dust and impurity in the biodegradable plastic granules, effectively guarantee biodegradable plastic granules's purity, improve biodegradable plastic granules's quality.

Furthermore, the magnetic cyclone assembly comprises a concave tray, the concave tray is fixedly connected with the outer end of the hollow ring in the hot air transfer and positioned at the lower side, a plurality of electromagnetic conduction vertical cylinders are fixedly connected with the upper end of the concave tray, electromagnetic coils are installed in the electromagnetic conduction vertical cylinders and are electrically connected with a cyclone diffusion control unit through wires, a plurality of strip-shaped permanent magnets are fixedly connected with the lower end of the diffusion convection fan housing positioned at the lower side, the electromagnetic conduction vertical cylinders and the strip-shaped permanent magnets are arranged at intervals, and the diffusion convection fan housing positioned at the lower side can be driven to rotate under the condition of magnetic force pushing through the matching of the electromagnetic conduction vertical cylinders and the strip-shaped permanent magnets, so that the diffusion convection fan housing at the lower side generates cyclone hot air, the dispersibility of the biodegradable plastic particles during drying is improved, and the drying efficiency of the biodegradable plastic particles is improved, but also promotes the separation of impurities of dust inside.

Further, concave type tray upper end fixedly connected with magnetic force expansion arc piece, and magnetic force expansion arc piece and strip permanent magnetism piece cooperate, magnetic force expansion arc piece lower extreme is through leading magnetic stripe and solenoid fixed connection, and magnetic force expansion arc piece can transmit and spread the magnetic force that solenoid produced, makes it effectively act on strip permanent magnetism piece, improves magnetic force rotation effect, improves the slew velocity of diffusion convection current fan housing, and then effectively guarantees the production of hot-blast whirl.

Furthermore, a diffusion arc-shaped cavity communicated with the hot air transfer hollow ring is arranged in the diffusion convection air cover, one end of the diffusion convection fan cover close to the dust absorption diffusion drying bag is provided with a plurality of vertical air inducing holes, and the vertical air-inducing hole is communicated with the diffusion arc-shaped cavity, one end of the vertical air-inducing hole close to the dust-absorbing diffusion drying bag is fixedly connected with a one-way breathable film, the diffusion convection air cover can enable hot air to form an airflow layer in the dust-absorbing diffusion drying bag, thereby effectively maintaining the suspension effect of the biodegradable plastic particles, effectively realizing isolated drying, the biodegradable plastic particles can be guided while the hot air is transferred and dried, after the drying is finished, the discharging efficiency of the biodegradable plastic particles is improved, so that the working efficiency of the convection dryer body is improved, and the economic benefit of the preparation of the biodegradable plastic particles is improved.

Further, diffusion convection fan housing one end fixedly connected with rather than the ventilation pole of switch-on mutually is kept away from to the hollow ring in the hot-blast transfer, the ventilation pole is kept away from diffusion convection fan housing one end fixedly connected with and is led the ring rather than the equal wind of switch-on mutually, the input fixedly connected with air regulation pipe that the ring was led to the equal wind, install automatically controlled valve on the air regulation pipe, automatically controlled valve passes through wire and hot-blast pressure control unit electric connection, can effectively control the interior amount of wind that gets into hot-blast transfer hollow ring through hot-blast pressure control unit, and then the intensity of control diffusion convection fan housing convection, effectively guarantees biodegradable plastic granules's suspension effect, effectively improves the control accuracy of convection dryer body, improves the intellectuality and the automation of convection dryer body.

Further, convection current dryer body upper end fixedly connected with and the inlet pipe of dust absorption diffusion drying bag switch-on mutually, convection current dryer body lower extreme fixedly connected with and dust absorption diffusion drying bag meet the discharging pipe that leads to, inner wall fixedly connected with is located the dust separation lag in the magnetic force whirl subassembly outside under the convection current dryer body, dust absorption diffusion drying bag inside fixed mounting has the temperature-sensing probe, the temperature-sensing probe passes through wire and dry temperature induction unit electric connection, can carry out intelligent control to this internal temperature of convection current dryer through dry temperature induction unit, effectively avoids appearing overheated condition, when effectively guaranteeing drying efficiency, improves the drying quality to biodegradable plastic granules, reduces the probability that its surface becomes soft.

Furthermore, two the cavity ring sets up respectively in the corresponding inlet pipe and the discharging pipe outside in the hot-blast transfer, the equal fixedly connected with air of inlet pipe and discharging pipe inner wall pushes away the deformation ring, and the air pushes away the deformation ring and draws the ring to put through with the equal wind through the tubule.

Further, the inner end sliding connection of air-propelled deformation ring has a plurality of closed arc pieces, closed arc piece outer end fixedly connected with a plurality of arc gas stay bars that are put through with air-propelled deformation ring, through closed arc piece and arc gas stay bar slip in air-propelled deformation ring, the closure condition of control inlet pipe and discharging pipe, effectively guarantee its leakproofness at the convection dryer body during operation, reduce the loss of heat energy, improve the economic environmental protection nature of convection dryer body, and effectively reduce the control step of convection dryer body through the mode of gas accuse linkage, and the control efficiency is improved, reduce the operation degree of difficulty of drying system is kept apart in the convection.

Furthermore, the inner part of the dust collection diffusion drying bag is fixedly connected with a flexible electrostatic adsorption ring, the inner part of the flexible electrostatic adsorption ring is fixedly connected with a honeycomb hole adsorption sleeve, and the inner wall of the honeycomb hole adsorption sleeve is fixedly connected with a plurality of electrostatic transfer strips.

Further, the output of dry control processing unit still is connected with the electrostatic absorption unit, the output of electrostatic absorption unit passes through wire and electrostatic transfer strip electric connection, make the electrostatic transfer strip produce the static transfer through the electrostatic absorption unit, and then make flexible electrostatic absorption ring can absorb dust and impurity in the biodegradable plastic granules, improve the purity of biodegradable plastic granules, and flexible electrostatic absorption ring has the contractility, can be when convection dryer body is out of work, carry out the dust exhaust of automatic blast through the effect of diffusion convection fan housing, effectively keep the continuous result of use of flexible electrostatic absorption ring, improve the adsorptivity and the life of flexible electrostatic absorption ring.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) the scheme can lead the biodegradable plastic particles to be in a suspension separation state in the dust absorption diffusion drying bag through the matching of the diffusion convection fan cover and the convection isolation drying system, thereby effectively realizing the convection type suspension isolation drying of the biodegradable plastic particles, further reducing the contact among the biodegradable plastic particles and the contact of the dust absorption diffusion drying bag thereof, reducing the probability of bonding dust and impurities on the wall surface of the biodegradable plastic particles during the drying, effectively avoiding the pollution of the biodegradable plastic particles, improving the drying quality of the convection dryer body, and the dust and impurities mixed in the biodegradable plastic particles can be adsorbed under the matching of the dust absorption diffusion drying bag, so that the content of the dust and the impurities in the biodegradable plastic particles is reduced, the purity of the biodegradable plastic particles is effectively ensured, and the quality of the biodegradable plastic particles is improved.

(2) Through the cooperation of the electromagnetic conduction vertical cylinder and the strip-shaped permanent magnet blocks, the diffusion convection fan housing positioned on the lower side can be driven to rotate under the condition of magnetic force pushing, so that the diffusion convection fan housing positioned on the lower side can generate spiral-flow type hot air, the dispersibility of biodegradable plastic particles during drying is improved, and the separation of impurities of dust in the biodegradable plastic particles can be promoted while the drying efficiency of the biodegradable plastic particles is improved.

(3) Can effectively control the interior amount of wind of entering hot-blast transfer cavity ring through hot-blast pressure control unit, and then the intensity of control diffusion convection current fan housing convection current effectively guarantees biodegradable plastic granules's suspension effect, effectively improves the control accuracy of convection current desicator body, improves the intellectuality and the automation of convection current desicator body.

(4) Diffusion convection fan housing can make hot-blast formation air current layer in dust absorption diffusion drying bag, and then effectively keep biodegradable plastic granules's suspension effect, effectively realize the isolated drying, when carrying out the dry biodegradable plastic granules of transmission to hot-blast, can guide biodegradable plastic granules, improve biodegradable plastic granules's ejection of compact efficiency after the drying is accomplished, and then improve the work efficiency of convection dryer body, improve the economic benefits of biodegradable plastic granules preparation.

(5) Through sealing arc piece and arc gas stay slip in gas-propelled deformation intra-annular, the closure condition of control inlet pipe and discharging pipe effectively guarantees its leakproofness at the convection current desicator body during operation, reduces the loss of heat energy, improves the economic environmental protection nature of convection current desicator body to the mode through gas accuse linkage effectively reduces the control step of convection current desicator body, improves control efficiency, reduces the operation degree of difficulty that drying system was kept apart in the convection current.

(6) Make the static transfer strip produce the static transfer through the electrostatic adsorption unit, and then make flexible electrostatic adsorption ring can absorb dust and impurity in the biodegradable plastic granules, improve biodegradable plastic granules's purity, and flexible electrostatic adsorption ring has the shrink nature, can be when the convection dryer body is out of work, carry out the dust exhaust of automatic blast through the effect of diffusion convection current fan housing, effectively keep the continuous result of use of flexible electrostatic adsorption ring, improve the adsorptivity and the life of flexible electrostatic adsorption ring.

Drawings

FIG. 1 is a schematic sectional view of a convection dryer body according to the present invention;

FIG. 2 is a schematic view of the control flow structure of the convection isolation drying system of the present invention;

FIG. 3 is a schematic axial view of the dust-absorbing diffusion drying bag of the present invention;

FIG. 4 is a schematic view of an axial measurement structure of the diffusion convection fan housing according to the present invention;

FIG. 5 is a schematic axial view of the magnetic cyclone assembly of the present invention;

FIG. 6 is a schematic diagram of the explosion structure of the diffusion convection fan housing and the magnetic cyclone assembly in cooperation with each other;

FIG. 7 is a schematic cross-sectional front view of the magnetic cyclone assembly of the present invention;

FIG. 8 is a schematic top view of the magnetic cyclone assembly of the present invention;

FIG. 9 is an enlarged view of the inner portion of the flexible electrostatic adsorption ring of the present invention;

FIG. 10 is a schematic sectional view of the vacuum diffusion bag of the present invention during convection drying;

FIG. 11 is a schematic sectional view of the flexible electrostatic adsorbing ring of the present invention in a front view for increasing the diameter.

The reference numbers in the figures illustrate:

the device comprises a convection dryer body 1, a feeding pipe 101, a discharging pipe 102, a dust-isolating protective sleeve 103, a dust-absorbing diffusion drying bag 2, a flexible electrostatic adsorption ring 201, a honeycomb hole adsorption sleeve 202, an electrostatic transfer strip 203, a diffusion convection fan cover 3, a diffusion arc cavity 301, a vertical air guide hole 302, a hot air transfer hollow ring 4, an air guide rod 401, an air-equalizing guide ring 402, an air-pushing deformation ring 404, a closed arc piece 405, an arc-shaped air supporting strip 406, a magnetic cyclone component 5, a concave tray 501, an electromagnetic conduction vertical cylinder 502, a permanent magnet strip 503, a magnetic expansion arc piece 504 and a closed material guide ring 6.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1 to 11, a convection type dryer for biodegradable plastic pellets includes a convection dryer body 1, a dust-absorbing diffusion drying bag 2 is fixedly arranged in the convection dryer body 1, the upper inner wall and the lower inner wall of the dust-absorbing diffusion drying bag 2 are both rotatably connected with a diffusion convection fan housing 3, one end of the diffusion convection fan housing 3 far away from the dust-absorbing diffusion drying bag 2 is rotatably connected with a hot air transfer hollow ring 4 communicated with the diffusion convection fan housing, and one end of the hot air transfer hollow ring 4 far away from the diffusion convection fan housing 3 extends to the outer side of the convection dryer body 1, the outer end of the hot air transfer hollow ring 4 positioned at the lower side is connected with a magnetic cyclone component 5 matched with the diffusion convection fan housing 3, one end of the diffusion convection fan housing 3 close to the dust absorption diffusion drying bag 2 is fixedly connected with a closed material guiding ring 6, the closed feeding ring 6 is rotationally connected with the dust collection diffusion drying bag 2, and the closed feeding ring 6 can effectively play a role in isolation; referring to fig. 5-8, the magnetic cyclone assembly 5 includes a concave tray 501, the concave tray 501 is fixedly connected to the outer end of the lower hot air transfer hollow ring 4, the upper end of the concave tray 501 is fixedly connected to a plurality of electromagnetic conductive vertical cylinders 502, electromagnetic coils are installed in the electromagnetic conductive vertical cylinders 502, the electromagnetic coils are electrically connected to the cyclone diffusion control unit through wires, the lower end of the lower diffusion convection fan housing 3 is fixedly connected to a plurality of strip-shaped permanent magnets 503, and the plurality of electromagnetic conductive vertical cylinders 502 and the plurality of strip-shaped permanent magnets 503 are arranged at intervals, by matching the electromagnetic conductive vertical cylinders 502 and the strip-shaped permanent magnets 503, the lower diffusion convection fan housing 3 can be driven by magnetic force to rotate, so that the lower diffusion convection fan housing 3 generates cyclone hot air, thereby improving dispersibility of biodegradable plastic particles during drying, and further improving drying efficiency of the biodegradable plastic particles, but also promotes the separation of impurities of dust inside. Referring to fig. 8, a magnetic expansion arc piece 504 is fixedly connected to the upper end of the concave tray 501, the magnetic expansion arc piece 504 is matched with the strip-shaped permanent magnet 503, the lower end of the magnetic expansion arc piece 504 is fixedly connected with the electromagnetic coil through a magnetic conductive strip, and the magnetic expansion arc piece 504 can transmit and diffuse the magnetic force generated by the electromagnetic coil, so that the magnetic expansion arc piece can effectively act on the strip-shaped permanent magnet 503, the magnetic rotation effect is improved, the rotation speed of the diffusion convection fan housing 3 is improved, and the generation of hot air rotational flow is effectively ensured.

Referring to fig. 2, a convection drying controller is fixedly installed at the outer end of a convection dryer body 1, a convection isolation drying system is arranged in the convection drying controller, the convection isolation drying system comprises a drying control processing unit, the input end of the drying control processing unit is respectively connected with a drying temperature sensing unit and a biodegradable plastic particle parameter statistical unit, the output end of the drying control processing unit is respectively connected with a hot air pressure control unit and a rotational flow diffusion control unit, the output end of the hot air pressure control unit is matched with a hot air transfer hollow ring 4, the output end of the rotational flow diffusion control unit is matched with a magnetic rotational flow component 5, the biodegradable plastic particles can be in a suspension separation state in a dust absorption diffusion drying bag 2 through the matching of a diffusion convection air cover 3 and the convection isolation drying system, and then the convection suspension isolation drying of the biodegradable plastic particles is effectively realized, and then reduce contact and its dust absorption diffusion drying bag 2's contact between the biodegradable plastic granules, reduce the probability that biodegradable plastic granules bond dust and impurity when the drying, effectively avoid biodegradable plastic granules contaminated situation to appear, improve the drying quality of convection current desicator body 1, and can adsorb dust and impurity that mix with in the biodegradable plastic granules under the cooperation of dust absorption diffusion drying bag 2, reduce the content of dust and impurity in the biodegradable plastic granules, effectively guarantee biodegradable plastic granules's purity, improve biodegradable plastic granules's quality.

Referring to fig. 1, 3 and 4, a diffusion arc-shaped cavity 301 communicated with the hot air transfer hollow ring 4 is formed in the diffusion convection fan housing 3, a plurality of vertical air-introducing holes 302 are formed at one end of the diffusion convection fan housing 3 close to the dust-absorbing diffusion drying bag 2, the vertical air-introducing holes 302 are communicated with the diffusion arc-shaped cavity 301, one end of the vertical air-introducing holes 302 close to the dust-absorbing diffusion drying bag 2 is fixedly connected with a one-way air-permeable film, the diffusion convection fan housing 3 can form an air flow layer in the dust-absorbing diffusion drying bag 2 by the hot air, so as to effectively maintain the suspension effect of biodegradable plastic particles, effectively realize isolated drying, guide the biodegradable plastic particles while transferring and drying the biodegradable plastic particles by the hot air, improve the discharging efficiency of the biodegradable plastic particles after drying, and further improve the working efficiency of the convection dryer body 1, improving the economic benefit of the preparation of the biodegradable plastic particles.

Referring to fig. 4 and 5, one end of the hot air transfer hollow ring 4 away from the diffusion convection fan housing 3 is fixedly connected with a ventilation rod 401 connected with the same, one end of the ventilation rod 401 away from the diffusion convection fan housing 3 is fixedly connected with an air equalizing guide ring 402 connected with the same, an input end of the air equalizing guide ring 402 is fixedly connected with an air volume adjusting pipe, an electric control valve is installed on the air volume adjusting pipe, the electric control valve is electrically connected with a hot air pressure control unit through a wire, the air volume entering the hot air transfer hollow ring 4 can be effectively controlled through the hot air pressure control unit, so as to control the convection intensity of the diffusion convection fan housing 3, effectively ensure the suspension effect of biodegradable plastic particles, effectively improve the control precision of the convection dryer body 1, and improve the intelligence and automation of the convection dryer body 1.

Please refer to fig. 1, an inlet pipe 101 connected with a dust-absorbing diffusion drying bag 2 is fixedly connected to the upper end of a convection dryer body 1, a discharge pipe 102 is connected with the dust-absorbing diffusion drying bag 2 and communicated to the lower end of the convection dryer body 1, a dust-isolating protective sleeve 103 located outside the magnetic cyclone assembly 5 is fixedly connected to the lower inner wall of the convection dryer body 1, a temperature sensing probe is fixedly installed inside the dust-absorbing diffusion drying bag 2, the temperature sensing probe is electrically connected with a drying temperature sensing unit through a wire, the temperature inside the convection dryer body 1 can be intelligently controlled through the drying temperature sensing unit, the overheating condition is effectively avoided, while the drying efficiency is effectively ensured, the drying quality of biodegradable plastic particles is improved, and the probability of surface softening is reduced. Referring to fig. 8-11, two hollow hot air delivery rings 4 are respectively disposed outside the corresponding inlet pipe 101 and outlet pipe 102, the inner walls of the inlet pipe 101 and outlet pipe 102 are both fixedly connected with an air-pushing deformation ring 404, and the air-pushing deformation ring 404 is connected to the air-equalizing guide ring 402 through a thin tube. Referring to fig. 8, the inner end of the air-pushing deformation ring 404 is slidably connected with a plurality of closed arc sheets 405, the outer end of the closed arc sheets 405 is fixedly connected with a plurality of arc-shaped air stay bars 406 communicated with the air-pushing deformation ring 404, when the feeding pipe 101 or the discharging pipe 102 needs to be closed, the hot air pressure control unit is communicated through narrow pipes at corresponding positions, so that hot air is introduced into the air-pushing deformation ring 404, then the closed arc sheets 405 are pushed, and the arc-shaped air stay bars 406 are subjected to air-expanding deformation, so that the closed arc sheets 405 are removed from the air-pushing deformation ring 404 and are guided to form a closed shape by the arc-shaped air stay bars 406, otherwise, the air suction is used to control the closed arc sheets 405 to open the feeding pipe 101 and the discharging pipe 102, the closed condition of the feeding pipe 101 and the discharging pipe 102 is controlled by the closed arc sheets 405 and the arc-shaped air stay bars 406 sliding in the air-pushing deformation ring 404, so that the sealing performance of the feeding pipe 101 and the discharging pipe 102 is effectively ensured when the convection dryer body 1 works, the loss of heat energy is reduced, the economic environmental protection performance of the convection dryer body 1 is improved, the control steps of the convection dryer body 1 are effectively reduced in a pneumatic control linkage mode, the control efficiency is improved, and the operation difficulty of a convection isolation drying system is reduced. When the convection dryer body 1 works, the connection and the closure of the feeding pipe 101 and the discharging pipe 102 can be effectively realized by respectively controlling the air inlet or air outlet conditions of the air pushing deformation ring 404 in the feeding pipe 101 and the discharging pipe 102, the purpose of independent control is effectively met, and the applicability of the convection dryer body 1 is improved.

Referring to fig. 9, a flexible electrostatic adsorption ring 201 is fixedly connected to the middle of the dust-absorbing diffusion drying bag 2, a honeycomb hole adsorption sleeve 202 is fixedly connected to the inside of the flexible electrostatic adsorption ring 201, and a plurality of electrostatic transfer strips 203 are fixedly connected to the inner wall of the honeycomb hole adsorption sleeve 202. Referring to fig. 2, the output end of the drying control processing unit is further connected with an electrostatic adsorption unit, the output end of the electrostatic adsorption unit is electrically connected with the electrostatic transfer strip 203 through a wire, the electrostatic transfer strip 203 generates electrostatic transfer through the electrostatic adsorption unit, and further the flexible electrostatic adsorption ring 201 can absorb dust and impurities in biodegradable plastic particles, so as to improve the purity of the biodegradable plastic particles, and the flexible electrostatic adsorption ring 201 has contractibility, and can automatically blast air to exhaust dust through the diffusion convection fan cover 3 when the convection dryer body 1 does not work, so that the continuous use effect of the flexible electrostatic adsorption ring 201 is effectively maintained, and the adsorptivity and the service life of the flexible electrostatic adsorption ring 201 are improved. The input end of the drying control processing unit is also connected with a discharge induction unit, the output end of the drying control processing unit is also connected with a blast self-cleaning unit, a material inductor is arranged in an air-thrust deformation ring 404 in the discharge pipe 102, the input end of the discharge induction unit is electrically connected with the material inductor through a lead, the output end of the blast self-cleaning unit is connected with a hot air pressure control unit, through the matching of the discharge induction unit and the blast self-cleaning unit, after the convection dryer body 1 finishes one-time drying work, blast diameter increasing is carried out on the flexible electrostatic adsorption ring 201, the flexible electrostatic adsorption ring 201 generates blast deformation, the hole diameter of the honeycomb hole adsorption sleeve 202 is further increased, dust and impurities adsorbed in the flexible electrostatic adsorption ring 201 are discharged outside the dust collection diffusion drying bag 2 under the action of wind force, and then are collected through a dust collection hole at the lower end of the convection dryer body 1, the continuous use of the flexible electrostatic adsorption ring 201 is effectively ensured, the adsorption effect is improved, and the drying quality of the subsequent biodegradable plastic particles is improved.

Referring to fig. 1-10, when the convection dryer body 1 dries biodegradable plastic particles, firstly, a worker transmits the type and the drying parameters of the biodegradable plastic particles to the biodegradable plastic particle parameter statistical unit through a control panel or a USB data receiving terminal on the convection dryer body 1, the biodegradable plastic particle parameter statistical unit transmits the data to the drying control processing unit, the drying control processing unit analyzes the parameters, and transmits the control data to the hot air pressure control unit, the hot air pressure control unit firstly controls an electric control valve on an air volume adjusting pipe to open, so that a hot air blower of the convection dryer body 1 can introduce a certain amount of hot air into an air equalizing guide ring 402 through the air volume adjusting pipe, and then transmits the hot air into a diffusion arc-shaped cavity 301 through an air guide rod 401 and a hot air transmission hollow ring 4, and further blows the inside of a dust collection diffusion drying bag 2 through a vertical air guide hole 302, and then form two opposite air current layers in the dust absorption diffusion drying bag 2, make the biodegradable plastic granules in the dust absorption diffusion drying bag 2 produce the suspension under the effect of convection hot wind that two diffusion convection wind hoods 3 produce, and then reduce the contact of biodegradable plastic granules, play the effect of isolating the drying effectively, the dry control processing unit controls the electrostatic adsorption unit to start at this moment, make the electrostatic adsorption unit convey the static to the electrostatic transfer strip 203, and then make honeycomb hole adsorption sleeve 202 and flexible electrostatic adsorption ring 201 have the effect of electrostatic adsorption, can adsorb the dust impurity in the biodegradable plastic granules, reduce its probability of polluting the biodegradable plastic granules, the temperature inductive probe in the dust absorption diffusion drying bag 2 detects the temperature in the dust absorption diffusion drying bag 2, after the temperature in the dust absorption diffusion drying bag 2 lasts at the initial drying temperature for a period of time, feeding back the data to a drying temperature sensing unit, the drying temperature sensing unit transmitting the temperature data to a drying control processing unit, the drying control processing unit judging the drying data of the biodegradable plastic particles, then increasing the amount of hot air entering into the dust absorption diffusion drying bag 2 through a hot air pressure control unit, after the dust and impurities in the biodegradable plastic particles are electrostatically adsorbed, increasing the temperature in the dust absorption diffusion drying bag 2, further effectively ensuring the purity of the biodegradable plastic particles, improving the drying efficiency of the convection dryer body 1, and controlling the action of a rotational flow diffusion control unit, so that the rotational flow diffusion control unit energizes electromagnetic coils in the strip-shaped permanent magnet blocks 503, and the magnetic expansion arc pieces 504 generate magnetism, and performs a magnetic propulsion effect on the electromagnetic conduction vertical cylinder 502, so that the diffusion convection fan housing 3 positioned at the lower side rotates, the blown hot air is guided in a rotating way to generate rotational flow hot air, so that after the air quantity is increased and the drying temperature is increased, the dispersity of the biodegradable plastic particles is increased, the mutual adhesion among the biodegradable plastic particles is effectively avoided, the drying quality of the biodegradable plastic particles is improved, after the continuous drying is carried out for a period of time, the biodegradable plastic particles are discharged by opening the air push deformation ring 404 in the discharge pipe 102, after the biodegradable plastic particles are discharged, the hot air pressure control unit controls the hot air transfer hollow ring 4 to introduce instantaneous large amount of hot air into the diffusion convection fan cover 3, further the air blowing diameter increasing is carried out on the flexible electrostatic adsorption ring 201, the flexible electrostatic adsorption ring 201 generates the blowing deformation, the hole diameter of the honeycomb hole adsorption sleeve 202 is further increased, and the dust and impurities adsorbed in the flexible electrostatic adsorption ring 201 are discharged to the outer side of the dust collection diffusion drying bag 2 under the action of the wind force, and then the dust removal holes at the lower end of the convection dryer body 1 are used for collection, so that the continuous use of the flexible electrostatic adsorption ring 201 is effectively ensured, the adsorption effect of the flexible electrostatic adsorption ring is improved, and the drying quality of subsequent biodegradable plastic particles is improved.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.