Degassing and drying system for modified plastic particles

Abstract

The utility model discloses a degassing and drying system for modified plastic particles, and relates to the technical field of plastic particle processing equipment. The two treatment bins are communicated with the material suction box, first generating devices used for generating hot or cold airflow are arranged in the treatment bins, and steam generating devices used for generating high-temperature steam into the treatment bins are arranged outside the treatment bins; the two treatment bins are provided with the first transfer devices, and the first transfer devices are used for transferring the untreated modified plastic particles in the material suction box to the treatment bins; and the two treatment bins communicate with the storage bin, and a second transfer device used for transferring the modified plastic particles treated by the treatment bins to the storage bin is arranged on the storage bin. The degassing and drying system is used for reducing residues of low-volatility substances in the plastic modification process, continuous production can be achieved, it is guaranteed that the material drying time is stable, and volatility is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of plastic particle processing equipment, and in particular to a degassing and drying system for modified plastic particles. Background Art

[0002] How to reduce the residual low molecular weight compounds in modified plastic particles and reduce the odor of particles is a key concern in the industrial production process of modified plastics. In the related art, in order to reduce the residual low-emission substances in modified plastic particles, a drying tank is added to the rear end of the twin-screw extruder production line to bake the modified plastic particles. However, the degassing method using conventional drying tanks has the following defects: on the one hand, the heating is uneven and the local temperature is high, which causes the secondary decomposition of plastic particles to produce odor; on the other hand, the heating speed is slow. It takes more than 2-3 hours for a conventional drying tank to heat a can of material to the set temperature, while using steam heating only takes 0.3 hours to make the temperature of the entire can of material reach 95-110°C, which not only ensures the deodorization effect but also avoids the secondary decomposition of plastic particles; in addition, the traditional baking method seriously affects the capacity setting of the continuous production process of low-odor materials due to the problem of processing efficiency. Utility Model Content

[0003] The present application aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present application provides a degassing and drying system for modified plastic particles, which is used to reduce the residual low-volatile substances in the plastic modification process, can realize continuous production, ensure the stability of material drying time, and reduce volatility.

[0004] A degassing and drying system for modified plastic particles provided in accordance with an embodiment of the present application includes a suction box; two processing bins, the processing bins being connected to the suction box, the processing bins being provided with a first generating device for generating hot or cold airflow, and the processing bins being provided with a steam generating device for generating high-temperature steam into the processing bins; a first transfer device, both of the processing bins being provided with the first transfer device, the first transfer device being used to transfer untreated modified plastic particles in the suction box to the processing bins; and a storage bin, the two processing bins being connected to the storage bin, the storage bins being provided with a second transfer device for transferring modified plastic particles processed by the processing bins to the storage bins.

[0005] According to the degassing and drying system for modified plastic particles provided in an embodiment of the present application, the first transfer device includes a first vacuum suction box and a first negative pressure blower, the first vacuum suction box is fixed to the top of the processing chamber and connected to the processing chamber, the first vacuum suction box is connected to the suction box through a pipe, and the negative pressure output port of the first negative pressure blower is connected to the first vacuum suction box.

[0006] According to the degassing and drying system for modified plastic particles provided in an embodiment of the present application, a transfer tank is arranged between the processing bin and the storage bin, the processing bin is connected to the transfer tank via a conduit, an electric valve is arranged on the conduit, and the second transfer device can transfer the processed modified plastic particles in the processing bin to the storage bin.

[0007] According to the degassing and drying system for modified plastic particles provided in an embodiment of the present application, the second transfer device includes a second vacuum suction box and a second negative pressure blower, the two transfer tanks are connected to the second vacuum suction box through a pipeline, the second vacuum suction box is arranged on the top of the storage bin and is connected to the storage bin, and the negative pressure output port of the second negative pressure blower is connected to the second vacuum suction box.

[0008] According to the degassing and drying system for modified plastic particles provided in an embodiment of the present application, a first three-way valve is provided on the pipeline connecting the transfer tank connected to one of the processing chambers and the second vacuum suction box, and the first vacuum suction box connected to the other processing chamber is connected to the output port of the first three-way valve through a pipeline.

[0009] According to the degassing and drying system for modified plastic particles provided in an embodiment of the present application, the output port of the suction box is provided with a second three-way valve, and both output ports of the second three-way valve are connected to the two first vacuum suction boxes through pipelines.

[0010] According to the degassing and drying system for modified plastic particles provided in an embodiment of the present application, an agitator and a first conical structure for breaking up the modified plastic particles are provided in the processing chamber, a funnel-shaped aggregate frame is provided below the first conical structure, and the output port of the first generating device extends between the first conical structure and the aggregate frame, wherein the processing chamber is also provided with a pressure relief valve, and the agitator is a spiral agitator shaft, and the agitator is provided at the axial position of the processing chamber.

[0011] According to the degassing and drying system for modified plastic particles provided in an embodiment of the present application, the first generating device is a fan, and the fan is provided with an electric heating wire capable of generating heat.

[0012] According to the degassing and drying system for modified plastic particles provided in an embodiment of the present application, the steam generating device includes an annular tube arranged outside the processing chamber, and the annular tube array is arranged with a distribution port connected to the interior of the processing chamber.

[0013] According to the degassing and drying system for modified plastic particles provided in an embodiment of the present application, a second conical structure and a storage frame arranged below the second conical structure are arranged in the storage bin, and an openable valve is arranged at the bottom of the storage frame.

[0014] The above-mentioned degassing and drying system for modified plastic particles has at least the following beneficial effects: when processing modified plastic particles, unprocessed materials are placed in a suction box, and the materials in the suction box are extracted into a processing bin through a first transfer device for degassing and drying treatment in succession. When degassing, a steam generating device introduces high-temperature water vapor into the processing bin, and uses the water vapor azeotropic principle to remove low-molecular compounds remaining on the surface of the plastic particles. At the same time, the water vapor keeps the temperature in the processing bin within a stable range, ensuring both sufficient volatilization of low-molecular compounds and ensuring that the temperature is not too high to cause decomposition of the plastic particles themselves. After the plastic particles are degassed, the steam generating device is turned off and the first generating device is turned on to generate a high-temperature airflow in the processing bin, driving the evaporation of water in the processing bin, completing the drying of the plastic particles, and ensuring sufficient evaporation of water vapor on the surface of the plastic particles. The degassing and drying system of the present application integrates the water vapor azeotropic degassing and drying process of the plastic particles, effectively reducing the residual low-volatile substances on the surface of the plastic particles. The treated plastic particles are transferred to the storage bin through the second transfer device. Compared with the existing equipment and process, the present application integrates the steam treatment, drying, cooling and other functions of the plastic particles in the same treatment bin, and the treated particles can achieve a smoother pipeline transmission process at the back end. In addition, the two treatment bins are arranged in parallel. When one treatment bin is performing steam treatment, the other treatment bin can absorb materials. The two treatment bins are used alternately and staggered, which can realize uninterrupted degassing and drying treatment of the modified plastic particles, and effectively utilize the production gap occupied by the degassing treatment for too long to use another treatment bin for production, so as to realize the seamless production of the treated modified plastic particles. In addition, the use of the first transfer device and the second transfer device realizes the automated processing of loading and storage, without the need for manual intervention throughout the process, realizing continuous automated production while greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present application is further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0017] Figure 2 This is a schematic diagram of the structure of the processing chamber in the embodiment of the present application;

[0018] Figure 3 It is a schematic diagram of the structure of the storage bin in an embodiment of the present application. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present application, but it cannot be understood as a limitation on the scope of protection of the present application.

[0020] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0021] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0023] Reference Figure 1The degassing and drying system for modified plastic particles provided in the present application includes a suction box 100, two processing bins 200, a first transfer device and a storage bin 600. The suction box 100 is used to store untreated modified plastic particles, wherein the two processing bins 200 are connected to the suction box 100, a first generating device 220 for generating hot or cold airflow is arranged in the processing bin 200, and a steam generating device 230 for generating high-temperature steam in the processing bin 200 is arranged outside the processing bin 200. High-temperature water vapor is produced by the steam generating device 230, and the low-molecular compounds remaining on the surface of the modified plastic particles are removed by using the water vapor azeotropic principle. At the same time, the water vapor keeps the temperature in the processing bin 200 at The stable range ensures both the full volatilization of low-molecular compounds and the temperature will not be too high to cause the decomposition of the plastic particles themselves. The first generating device can generate high-temperature airflow in the processing bin 200, drive the evaporation of water in the processing bin 200, complete the drying of the plastic particles after degassing, and ensure the full evaporation of water vapor on the surface of the plastic particles; wherein, the two processing bins 200 are both provided with a first transfer device, and the first transfer device is used to transfer the untreated modified plastic particles in the suction box 100 to the processing bin 200; the two processing bins 200 are both connected to the storage bin 600, and the storage bin 600 is provided with a second transfer device for transferring the modified plastic particles processed by the processing bin 200 to the storage bin 600.

[0024] Specifically, when the modified plastic particles are processed, the unprocessed material is placed in the suction box 100, and the material in the suction box 100 is extracted into the processing bin 200 through the first transfer device for degassing and drying. When degassing, the steam generating device 230 introduces high-temperature water vapor into the processing bin 200, and the low-molecular compounds remaining on the surface of the plastic particles are removed by the water vapor azeotropic principle. At the same time, the water vapor keeps the temperature in the processing bin 200 within a stable range, ensuring both the full volatilization of the low-molecular compounds and the temperature not being too high to cause the decomposition of the plastic particles themselves. After the plastic particles are degassed, the steam generating device 230 is turned off, and the first generating device 220 is turned on to generate a high-temperature airflow in the processing bin 200, thereby driving the evaporation of water in the processing bin 200, completing the drying of the plastic particles, and ensuring the full evaporation of water vapor on the surface of the plastic particles. The degassing and drying system of the present application can complete the water vapor azeotropic degassing and drying process of plastic particles in an integrated manner, effectively reducing the residual low-volatile substances on the surface of plastic particles. The processed plastic particles are transferred to the storage bin 600 through the second transfer device. Compared with the existing equipment and process, the present application integrates the steam treatment, drying, cooling and other functions of plastic particles in the same processing bin 200. The processed particles can achieve a smoother pipeline transmission process at the back end. In addition, the two processing bins 200 are arranged in parallel. When one processing bin 200 is subjected to steam treatment, the other processing bin 200 can absorb the material. The two processing bins 200 are used alternately and staggered, which can realize uninterrupted degassing and drying treatment of the modified plastic particles. The production gap that takes up too long for the degassing treatment can be effectively utilized to use the other processing bin 200 for production, so as to realize seamless production of the treated modified plastic particles. In addition, the use of the first transfer device and the second transfer device realizes the automated processing of material loading and storage. The workers are only responsible for putting the materials into the suction box 100 and taking out the treated modified plastic particles from the storage bin 600. There is no need for manual intervention in the whole process, which realizes continuous automated production and greatly improves production efficiency.

[0025] It should be noted that in some other embodiments, more than three processing bins 200 may be provided. Arranging more than three processing bins 200 in parallel can greatly improve production efficiency. Furthermore, the processing bins 200 may be placed vertically, horizontally or stacked so as to reduce the floor space occupied by the processing bins 200. The shape of the processing bins 200 may be conical, cylindrical, semicircular, spherical or the like, and no specific limitation is made here.

[0026] In the embodiment of the present application, the first transfer device includes a first vacuum suction box 210 and a first negative pressure blower 250. The first vacuum suction box 210 is fixed to the top of the processing chamber 200 and is connected to the processing chamber 200. The first vacuum suction box 210 is connected to the suction box 100 through a pipeline, and the negative pressure output port of the first negative pressure blower 250 is connected to the first vacuum suction box 210. Specifically, when the pipeline between the first vacuum suction box 210 and the suction box 100 is connected, the first negative pressure blower 250 is intermittently started and the first vacuum suction box 210 is turned on. Intermittent negative pressure is generated in the box 210, and the diameter of the pipeline is smaller than that of the first vacuum suction box 210, so that the modified plastic particles in the suction box 100 can be adsorbed to the first vacuum suction box 210 through the negative pressure. Because the negative pressure output port of the first negative pressure blower 250 is higher than the height of the pipeline connected to the first vacuum suction box 210, and the negative pressure is generated intermittently, the modified plastic particles will not enter the negative pressure output port, but will slowly enter the processing chamber 200 from the bottom of the first vacuum suction box 210, thereby realizing automatic loading with fast speed and high efficiency.

[0027] In some embodiments, a transfer tank 400 is provided between the processing bin 200 and the storage bin 600, the processing bin 200 is connected to the transfer tank 400 through a conduit 240, an electric valve 241 is provided on the conduit 240, and the second transfer device can transfer the processed modified plastic particles in the processing bin 200 to the storage bin 600. The transfer tank 400 is used to temporarily store the modified plastic particles processed by the processing bin 200 when the storage bin 600 is full, and it is also convenient for the subsequent linkage production of the two processing bins 200.

[0028] like Figure 3 As shown, the second transfer device includes a second vacuum suction box 610 and a second negative pressure blower 620. Both transfer tanks 400 are connected to the second vacuum suction box 610 through a pipeline. The second vacuum suction box 610 is arranged on the top of the storage bin 600 and connected to the storage bin 600. The negative pressure output port of the second negative pressure blower 620 is connected to the second vacuum suction box 610. When the second negative pressure blower 620 is started intermittently, the second vacuum suction box 610 generates intermittent negative pressure. For example, after the second vacuum suction box 610 is connected to the pipeline of the transfer tank 400, the modified plastic particles on the transfer tank 400 can be sucked into the second vacuum suction box 610 in a pulsed manner under the action of the intermittent negative pressure. Then, the modified plastic particles enter the storage bin 600 from the bottom of the second vacuum suction box 610, thereby realizing automatic storage of materials with high speed and efficiency, without manual intervention, and avoiding the situation that they are easily contaminated during manual transfer.

[0029] like Figure 1As shown, a first three-way valve 410 is provided on the pipeline connecting the transfer tank 400 connected to one of the processing chambers 200 and the second vacuum suction box 610, and the first vacuum suction box 210 connected to the other processing chamber 200 is connected to the output port of the first three-way valve 410 through a pipeline. The first three-way valve 410 is provided so that the two processing chambers 200 can be connected in series. When the first three-way valve 410 controls the first vacuum suction box 210 to be connected to the transfer tank 400, the two processing chambers 200 are connected in series, otherwise the two processing chambers 200 are connected in parallel.

[0030] Furthermore, the output port of the suction box 100 is provided with a second three-way valve 110, and the two output ports of the second three-way valve 110 are connected to the two first vacuum suction boxes 210 through pipes to avoid mutual interference and realize orderly material supply. When the corresponding processing bin 200 needs to take material through the first transfer device, the second three-way valve 110 is connected to the corresponding pipe to realize precise connection and feeding.

[0031] In some embodiments, an agitator 270 and a first conical structure 280 for breaking up the modified plastic particles are provided in the processing chamber 200, a funnel-shaped aggregate frame 290 is provided below the first conical structure 280, and the output port of the first generating device 220 extends between the first conical structure 280 and the aggregate frame 290, wherein the processing chamber 200 is also provided with a pressure relief valve 260, the agitator 270 is a spiral agitator shaft, and the agitator 270 is arranged at the axial position of the processing chamber 200, so as to be able to break up the modified plastic particles transported, and facilitate the subsequent complete degassing and drying treatment, and the first conical structure 280 is also used to make the entering modified plastic particles evenly dispersed to the aggregate frame 290, and the main function of the first conical structure 280 and the agitator 270 is to make the modified plastic particles and the high-temperature water vapor in the processing chamber 200 fully mixed, so as to increase the volatilization rate of small molecule compounds on the surface of the modified plastic particles. Among them, a plurality of stirring rods perpendicular to the stirring shaft can be set on the spiral stirring shaft, and the stirring shaft is set at the axis of the processing chamber 200. When the power mechanism drives the stirring shaft to rotate, the plurality of stirring rods play the role of stirring the plastic particles. In addition, the agitator 270 can also be set to other forms, which can play the role of stirring the flow of plastic particles in the processing chamber 200. This application does not give examples one by one here. In addition, the first conical surface structure 280 is a gradually expanding cone. The water vapor generated by the steam generating device 230 is dispersed to various parts of the processing chamber 200 through the first conical surface structure 280, which plays the role of expanding the diffusion direction of the water vapor, increasing the contact area between the water vapor and the plastic particles in the tank, and making the water vapor fully contact with the plastic particles in the tank, which can accelerate the volatilization rate of low-volatile compounds.

[0032] Furthermore, the limit pressure value of the pressure relief valve 260 of the processing chamber 200 is set above 0.5Mpa. When too much steam is input into the processing chamber 200 and the internal pressure exceeds the limit pressure value, the pressure relief valve 260 opens to release the pressure of the processing chamber 200, thereby playing a protective role. The water vapor in the processing chamber 200 takes away the low-volatile components on the surface of the plastic particles by volatilization, while ensuring that the temperature in the processing chamber 200 is maintained within a stable range and does not continue to rise to an excessively high temperature. When the plastic particles are some low-temperature resistant compounds, such as ABS, PP, etc., compared with the direct use of high-temperature baking degassing method, the water vapor azeotropic degassing method can ensure that the plastic particles themselves will not decompose due to excessively high temperatures, thereby reducing the generation of burnt smells during the baking process.

[0033] In a preferred embodiment of the present application, the first generating device 220 is a fan, and the fan is provided with a heating wire capable of generating heat. The switching of cold or hot air flow can be achieved by controlling whether the heating wire is started or not.

[0034] In some embodiments, Figure 2 As shown, the steam generating device 230 includes an annular tube 231 arranged outside the processing chamber 200, and the annular tube 231 is arranged in an array with distribution ports 232 connected to the interior of the processing chamber 200, and the distribution ports 232 are opposite to the first conical structure 280. The water vapor is dispersed to various places in the processing chamber 200 through the first conical structure 280, which expands the diffusion direction of the water vapor and increases the contact area between the water vapor and the plastic particles in the tank, so that the water vapor and the plastic particles in the tank are fully in contact, which can accelerate the volatilization rate of low-volatile compounds and improve the degassing treatment speed.

[0035] Further, such as Figure 3 As shown, a second conical structure 630 and a storage frame 640 arranged below the second conical structure 630 are provided in the storage bin 600, and an openable valve is provided at the bottom of the storage frame 640 to facilitate users to transfer materials in the storage frame 640 by opening the valve, wherein the second conical structure 630 is a gradually expanding cone, which can also further disperse the modified plastic particles bonded together.

[0036] Specifically, the normal parallel processing flow is steam treatment → hot air drying → cooling → discharge. Figure 1The structural composition diagram of the degassing and drying system is shown, the material enters the first processing bin 200 from the suction box 100 in the first transfer device, the material enters and the agitator 270 and the steam generator 230 are turned on at the same time, and after reaching the set steam treatment process time, the first three-way valve 410 is switched to connect the suction box 100 with the second processing bin 200, and the material enters the second processing bin 200 under the action of the first transfer device, and the agitator 270 and the steam generator 230 of the processing bin 200 are turned on at the same time, and the second tank material steam treatment is carried out. After the material is switched into the second processing bin 200, the degassing treatment of the material in the first processing bin 200 is completed, and the first generating device 220 can be turned on at this time to dry the hot air flow, and after reaching the hot air flow drying time, switch to cold air flow to cool the material, and after reaching the cooling time, open the electric valve 241 and the second negative pressure blower 620 of the second transfer device to transfer the material to the transfer tank 400, and then to the storage bin 600, and the material treatment of the first processing bin 200 is completed. At this time, the material in the second processing bin 200 has completed the steam degassing treatment time, and the material is switched back to the first processing bin 200 through the first three-way valve 410. The material in the second processing bin 200 opens the first generating device 220 for hot air flow drying. After the hot air flow drying time is reached, it switches to cold air flow to cool the material. After the cooling time is reached, the electric valve 241 and the second negative pressure blower 620 of the second transfer device are opened to transfer the material to the transfer tank 400, and then to the storage bin 600. The material processing of the second processing bin 200 is completed. At this time, the second absorbed material in the first processing bin 200 has completed the steam treatment, and the above hot air drying, cooling, and discharge process are repeated. The second processing bin 200 is repeated according to this process. All of the above operations are completed under the control of a programmable logic controller, and its basic control logic is that the steam treatment time is greater than the sum of the hot air drying time, the material cooling time, and the discharge time.

[0037] Among them, if the series drying process is used, Figure 1, the material enters the first processing bin 200 from the suction box 100 in the first transfer device, and the agitator 270 and the steam generator 230 are turned on at the same time to steam the material. After the material in the first processing bin 200 is full for a certain period of time, the material passes through the electric valve 241, the transfer tank 400, the second three-way valve 110, and the first vacuum suction box 210 of the second processing bin 200 and enters the second processing bin 200. The agitator 270 and the first generator 220 in the second processing bin 200 are turned on to dry the material with hot air flow. After the set hot air flow drying time is reached, the first generator 220 in the second processing bin 200 generates a cold air flow to cool the material. After the set cooling time is reached, the material passes through the electric valve 241 and the second vacuum suction box 610 in the second processing bin 200 and enters the storage bin 600. This operation process can also be set up as the first processing chamber 200 is first dried with hot air flow, and the material enters the second processing chamber 200 and then undergoes steam treatment → hot air drying → cooling → material discharge. The advantage of this processing process is that the degassing effect is better by increasing the steam treatment time.

[0038] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. A degassing and drying system for modified plastic particles, characterized in that: include Suction box (100); two processing chambers (200), the processing chambers (200) being connected to the suction box (100), the processing chambers (200) being provided with a first generating device (220) for generating hot or cold airflow, and the processing chambers (200) being provided with a steam generating device (230) for generating high-temperature steam into the processing chambers (200); A first transfer device, each of the two processing bins (200) is provided with the first transfer device, the first transfer device being used to transfer unprocessed modified plastic particles in the suction box (100) to the processing bin (200); as well as A storage bin (600), wherein the two processing bins (200) are connected to the storage bin (600), and the storage bin (600) is provided with a second transfer device for transferring the modified plastic particles processed by the processing bin (200) to the storage bin (600).

2. The degassing and drying system for modified plastic particles according to claim 1, characterized in that: The first transfer device comprises a first vacuum suction box (210) and a first negative pressure blower (250); the first vacuum suction box (210) is fixed to the top of the processing chamber (200) and is connected to the processing chamber (200); the first vacuum suction box (210) is connected to the suction box (100) via a pipeline; and the negative pressure output port of the first negative pressure blower (250) is connected to the first vacuum suction box (210).

3. The degassing and drying system for modified plastic particles according to claim 2, characterized in that: A transfer tank (400) is arranged between the processing bin (200) and the storage bin (600); the processing bin (200) is connected to the transfer tank (400) via a conduit (240); an electric valve (241) is arranged on the conduit (240); and the second transfer device can transfer the processed modified plastic particles in the processing bin (200) to the storage bin (600).

4. The degassing and drying system for modified plastic particles according to claim 3, characterized in that: The second transfer device includes a second vacuum suction box (610) and a second negative pressure blower (620); the two transfer tanks (400) are connected to the second vacuum suction box (610) through a pipeline; the second vacuum suction box (610) is arranged on the top of the storage bin (600) and is connected to the storage bin (600); the negative pressure output port of the second negative pressure blower (620) is connected to the second vacuum suction box (610).

5. The degassing and drying system for modified plastic particles according to claim 4, characterized in that: A first three-way valve (410) is provided on a pipeline connecting the transfer tank (400) connected to one of the processing chambers (200) and the second vacuum suction box (610), and the first vacuum suction box (210) connected to the other processing chamber (200) is connected to the output port of the first three-way valve (410) through a pipeline.

6. The degassing and drying system for modified plastic particles according to claim 2, characterized in that: The output port of the suction box (100) is provided with a second three-way valve (110), and the two output ports of the second three-way valve (110) are both connected to the two first vacuum suction boxes (210) through pipelines.

7. The degassing and drying system for modified plastic particles according to any one of claims 1 to 6, characterized in that: The processing chamber (200) is provided with an agitator (270) and a first conical structure (280) for breaking up the modified plastic particles, a funnel-shaped aggregate frame (290) is provided below the first conical structure (280), and the output port of the first generating device (220) extends between the first conical structure (280) and the aggregate frame (290), wherein the processing chamber (200) is also provided with a pressure relief valve (260), and the agitator (270) is a spiral agitator shaft, and the agitator (270) is provided at the axial position of the processing chamber (200).

8. The degassing and drying system for modified plastic particles according to claim 7, characterized in that: The first generating device (220) is a fan, and the fan is provided with a heating wire capable of generating heat.

9. The degassing and drying system for modified plastic particles according to claim 7, characterized in that: The steam generating device (230) comprises an annular tube (231) arranged outside the processing chamber (200), and the annular tube (231) is arranged in an array with a distribution port (232) communicating with the interior of the processing chamber (200).

10. The degassing and drying system for modified plastic particles according to any one of claims 1 to 6, characterized in that: The storage bin (600) is provided with a second conical surface structure (630) and a storage frame (640) disposed below the second conical surface structure (630), and a valve that can be opened is disposed at the bottom of the storage frame (640).

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