Crystallization drying system

Abstract

The present invention discloses a crystallization drying system, which includes: a frame; a kettle body, which is arranged on the frame, and has a material storage cavity in the kettle body, and an air inlet pipe is arranged at the bottom of the kettle body; a stirring device, which includes a rotating part and a stirring paddle, and the rotating part is arranged on the frame or the kettle body, and the stirring paddle is located in the material storage cavity, and one end of the stirring paddle extends out of the kettle body to connect the rotating part, and the stirring paddle is provided with an air distribution channel and a first air outlet; an air slip ring, which is sleeved on the stirring paddle, and the outlet of the air slip ring is connected with the air distribution channel; a hot air device, which has an air inlet and two second air outlets, wherein one second air outlet is connected with the inner cavity of the air inlet pipe, and the other second air outlet is connected with the inlet of the air slip ring. A part of the hot air generated by the hot air device enters the bottom of the material storage cavity through the air inlet pipe; a part of the hot air enters the material storage cavity through the second air outlet, and the hot air of this part can heat and fluidize the material near the stirring paddle, so that the material can be fully contacted with the hot air, and the effect of material drying and crystallization is optimized.

Description

Technical Field

[0001] The invention relates to the technical field of material drying, and in particular to a crystallization drying system. Background Art

[0002] The crystallization drying system is suitable for mixing and drying a variety of materials under high temperature environment, so that the materials will not agglomerate under high temperature, thus achieving the effect of crystallization. During the material stirring process, hot air is introduced into the kettle to fluidize and dry the materials, but the hot air generally enters from the side wall of the kettle. Due to the obstruction of the stirring paddle and the influence of material stirring, some materials have uneven contact with the hot air. The insufficient contact between the materials and the hot air leads to poor drying and crystallization, which affects the overall drying and crystallization effect of the materials. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a crystallization drying system, which can make the material fully contact with hot air and optimize the effect of material drying and crystallization.

[0004] According to an embodiment of the present invention, the crystallization drying system comprises: a frame; a kettle body, which is arranged on the frame, the kettle body has a material storage cavity for placing materials, and the bottom of the kettle body is provided with an air inlet pipe; a stirring device, which comprises a rotating part and a stirring paddle, the rotating part is arranged on the frame or the kettle body, the stirring paddle is located in the material storage cavity, and one end of the stirring paddle extends out of the kettle body to connect with the rotating part, and the stirring paddle is provided with a connected air distribution channel and a first air outlet; an air slip ring, which is sleeved on the stirring paddle, and the outlet of the air slip ring is connected to the air distribution channel; a hot air device, which has an air inlet and two second air outlets, wherein one of the second air outlets is connected to the inner cavity of the air inlet pipe, and the other second air outlet is connected to the inlet of the air slip ring.

[0005] According to the crystallization drying system of the embodiment of the present invention, there are at least the following beneficial effects: a part of the hot air generated by the hot air device enters the bottom of the storage chamber through the air inlet pipe; a part of the hot air enters the storage chamber through the second air outlet, and this part of the hot air can heat and fluidize the material close to the stirring paddle. Through the above structure, the material can be fully in contact with the hot air, thereby optimizing the effect of material drying and crystallization.

[0006] According to some embodiments of the present invention, the agitator includes a stirring shaft and a blade, the stirring shaft is vertically arranged in the storage chamber, one end of the blade is fixedly connected to the side wall of the stirring shaft, the gas distribution channel includes a main gas distribution channel arranged in the stirring shaft and a branch gas distribution channel arranged in the blade, the main gas distribution channel is connected to the branch gas distribution channel, and the first air outlet is arranged on the blade.

[0007] According to some embodiments of the present invention, the number of the blades is set to be three or more, and the three or more blades are spirally arranged on the stirring shaft.

[0008] According to some embodiments of the present invention, the bottom surface of the blade extends obliquely downward along the rotation direction of the stirring paddle.

[0009] According to some embodiments of the present invention, the top of the blade has a guide surface, and the guide surface extends obliquely downward along the rotation direction of the stirring paddle.

[0010] According to some embodiments of the present invention, the first air outlet is located on a side of the blade that is opposite to the rotation direction of the stirring paddle.

[0011] According to some embodiments of the present invention, the axis of the air inlet pipe is tangent to the inner cavity side wall of the kettle body.

[0012] According to some embodiments of the present invention, an exhaust pipe is disposed on the top of the kettle body, and the exhaust pipe is connected to an exhaust gas treatment device.

[0013] According to some embodiments of the present invention, a discharge port and a valve device are provided at the bottom of the kettle body, and an outlet end of the valve device is connected to a feed pipe.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 It is a structural diagram of an embodiment of a crystallization drying system of the present invention;

[0017] Figure 2 for Figure 1 The structural diagram of the stirring device shown in;

[0018] Figure 3 for Figure 2 A side view of a stirring paddle is shown in;

[0019] Figure 4 for Figure 2 A cross-sectional view of a stirring paddle shown in ;

[0020] Figure 5 It is a simplified structural diagram of a crystallization drying system embodiment.

[0021] Reference numerals:

[0022] Frame 100, kettle body 200, material storage chamber 210, feeding port 220, exhaust pipe 230, air inlet pipe 240, cover plate 250, stirring device 300, rotating member 310, stirring paddle 320, stirring shaft 321, paddle 322, guide surface 3221, gas distribution channel 330, gas distribution main channel 331, gas distribution branch channel 332, first gas outlet 340, gas slip ring 400, hot air device 500, shell 510, air inlet 520, second gas outlet 530, exhaust gas treatment device 610, valve device 620, feed pipe 630 DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 invention.

[0025] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, 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 the present invention based on the specific content of the technical solution.

[0027] like Figures 1 to 5 As shown, the crystallization drying system according to an embodiment of the present invention includes a frame 100 , a kettle body 200 , a stirring device 300 , an air slip ring 400 and a hot air device 500 , and the kettle body 200 is arranged on the frame 100 .

[0028] A material storage cavity 210 for placing materials is provided in the kettle body 200, a feeding port 220 and an exhaust pipe 230 are provided at the top of the kettle body 200, and an air inlet pipe 240 and a discharge port are provided at the bottom of the kettle body 200. In addition, a valve device 620 is provided at the bottom of the kettle body 200, the valve device 620 is located at the discharge port to cover the discharge port, and the outlet end of the valve device 620 is connected to a material introduction pipe 630.

[0029] The stirring device 300 includes a rotating member 310 and a stirring paddle 320. The rotating member 310 is arranged on the kettle body 200. The stirring paddle 320 is located in the material storage chamber 210, and one end of the stirring paddle 320 extends out of the kettle body 200. The rotating member 310 is connected to the end of the stirring paddle 320 extending out of the kettle body 200. The stirring paddle 320 is provided with a connected gas distribution channel 330 and a first gas outlet 340. The air slip ring 400 is sleeved on the stirring paddle 320, and the outlet of the air slip ring 400 is connected to the gas distribution channel 330. Specifically, the inner ring of the air slip ring 400 is fixedly connected to the stirring paddle 320, and the outer ring of the air slip ring 400 is fixedly connected to the outer shell of the rotating member 310 or the kettle body 200. Among them, the rotating member 310 is set as a motor, and of course, it can also be set as a pneumatic motor or other structures.

[0030] The hot air device 500 is disposed on the frame 100 and has an air inlet 520 and two second air outlets 530 , wherein one second air outlet 530 is connected to the inner cavity of the air inlet pipe 240 through a pipe, and the other second air outlet 530 is also connected to the inlet of the air slip ring 400 through a pipe.

[0031] During operation, the material is fed into the storage chamber 210 through the feeding port 220, the rotating member 310 drives the stirring paddle 320 to rotate to stir the material, and the hot air device 500 heats the air entering through the air inlet 520. A portion of the hot air enters the bottom of the storage chamber 210 through the second air outlet 530 and the air inlet pipe 240. The hot air rises in the storage chamber 210 to heat and fluidize the material, and the hot air is discharged through the exhaust pipe 230. In addition, a portion of the hot air also flows through the air slip ring 400, the air distribution channel 330 and the second air outlet 530 in sequence to enter the storage chamber 210. This portion of the hot air can heat and fluidize the material near the stirring paddle 320. In this way, the above structure can make the material fully contact with the hot air, optimizing the effect of material drying and crystallization.

[0032] In some embodiments, the rotating member 310 may also be disposed on the frame 100. The hot air device 500 may also be disposed at other locations.

[0033] A window is provided on the side wall of the kettle body 200, and a cover plate 250 is provided at the window. When the cover plate 250 is opened, the inside of the kettle body 200 can be cleaned and inspected.

[0034] Reference Figures 2 to 4The stirring paddle 320 includes a stirring shaft 321 and a paddle 322. The stirring shaft 321 is vertically arranged in the material storage chamber 210. The end of the stirring shaft 321 extends out of the kettle body 200 and is connected to the rotating member 310. One end of the paddle 322 is fixedly connected to the side wall of the stirring shaft 321. The gas distribution channel 330 includes a main gas distribution channel 331 arranged in the stirring shaft 321 and a branch gas distribution channel 332 arranged in the paddle 322. The main gas distribution channel 331 is connected to the branch gas distribution channel 332. The first gas outlet 340 is arranged on the paddle 322.

[0035] The number of the paddles 322 is set to be more than three, and the more than three paddles 322 are spirally arranged on the stirring shaft 321 .

[0036] The bottom surface of the blade 322 extends obliquely downward along the rotation direction of the stirring paddle 320, and the top of the blade 322 has a guide surface 3221, and the guide surface 3221 also extends obliquely downward along the rotation direction of the stirring paddle 320. For example, if the rotating member 310 drives the stirring paddle 320 to rotate clockwise, the bottom surface of the blade 322 and the guide surface 3221 extend obliquely downward along the clockwise direction; if the rotating member 310 drives the stirring paddle 320 to rotate counterclockwise, the bottom surface of the blade 322 and the guide surface 3221 extend obliquely downward along the counterclockwise direction. This structure is conducive to the flow of materials along the blade 322, and the guide surface 3221 has an upflow effect on the materials, which can make the materials rise during stirring, so that the materials can fully flow to fully contact the hot air, so as to facilitate the heat drying and crystallization.

[0037] The first air outlet 340 is located on the side of the blade 322 that is opposite to the rotation direction of the stirring paddle 320. For example, when the stirring paddle 320 rotates clockwise, the first air outlet 340 is located on the counterclockwise side of the blade 322. In this way, the hot air flowing out through the first air outlet 340 can maintain an upflow effect on the material passing through the top of the blade 322, prompting the material to flow fully to fully contact the hot air; the hot air flowing out of the first air outlet 340 can also fully and evenly contact the material, so that the material is heated, dried and crystallized, and the drying and crystallization effect of the material is optimized.

[0038] The axis of the air inlet pipe 240 is tangent to the inner cavity side wall of the kettle body 200. Through this structure, after the hot air enters the material storage chamber 210 through the air inlet pipe 240, a rotating airflow will be formed in the material storage chamber 210, so that the hot air can fully contact the material and the material can be evenly heated.

[0039] The exhaust pipe 230 is connected to an exhaust gas treatment device 610. The gas flowing out of the exhaust pipe 230 contains a lot of dust, which needs to be removed to avoid polluting the air. In this embodiment, the exhaust gas treatment device 610 can be set as a cyclone separator. Of course, in actual application, the exhaust gas treatment device 610 can also be an electrostatic precipitator or a bag filter. The gas treated by the exhaust gas treatment device 610 still has a high temperature. In order to save energy, the gas treated by the exhaust gas treatment device 610 can be passed into the hot air device 500, and the hot air device 500 is used to heat the gas and then pass it into the storage chamber 210 again.

[0040] The hot air device 500 includes a hollow housing 510, the aforementioned air inlet 520 and the second air outlet 530 are both arranged in the housing 510, a fan and a heating element are arranged in the housing 510, when the fan is running, the outside air can be sucked into the inner cavity of the housing 510, the air is heated by the heating element, and the heated air is discharged through the second air outlet 530. The heating element can be set as a structure such as an electric heating wire or an electric heating tube.

[0041] The valve device 620 can be a gate valve or other structure. When the material is added and stirred, the valve device 620 is closed. After the stirring is completed, the valve device 620 is opened, and the material is transported to the processing equipment, such as an injection molding machine, an extruder, etc., through the feed pipe 630. The processing equipment can be located below the discharge port, and the material enters the processing equipment under its own gravity. Of course, the processing equipment can also be located at other locations, and the material can be transported to the processing equipment by connecting a pump to the discharge pipe.

[0042] Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. Crystallization drying system, characterized in that: include: frame; A kettle body is arranged on the frame, the kettle body has a material storage cavity for placing materials, and an air inlet pipe is arranged at the bottom of the kettle body; A stirring device, comprising a rotating member and a stirring paddle, wherein the rotating member is arranged on the frame or the kettle body, the stirring paddle is located in the material storage chamber, and one end of the stirring paddle extends out of the kettle body to connect with the rotating member, and the stirring paddle is provided with a connected gas distribution channel and a first gas outlet; An air slip ring is sleeved on the stirring paddle, and an outlet of the air slip ring is communicated with the air distribution channel; A hot air device, comprising an air inlet and two second air outlets, wherein one of the second air outlets is communicated with the inner cavity of the air inlet pipe, and the other of the second air outlets is communicated with the inlet of the air slip ring; The stirring paddle comprises a stirring shaft and a paddle, wherein the stirring shaft is vertically arranged in the material storage chamber, one end of the paddle is fixedly connected to the side wall of the stirring shaft, the gas distribution channel comprises a main gas distribution channel arranged in the stirring shaft and a branch gas distribution channel arranged in the paddle, the main gas distribution channel is communicated with the branch gas distribution channel, and the first gas outlet is arranged on the paddle; The number of the blades is set to be more than three, and the more than three blades are spirally arranged on the stirring shaft; The bottom surface of the blade extends obliquely downward along the rotation direction of the stirring paddle; The top of the blade has a guide surface, and the guide surface extends obliquely downward along the rotation direction of the stirring paddle; The first air outlet is located on a side of the blade that is opposite to the rotation direction of the stirring paddle.

2. The crystallization drying system according to claim 1, characterized in that: The axis of the air inlet pipe is tangent to the inner cavity side wall of the kettle body.

3. The crystallization drying system according to claim 1, characterized in that: An exhaust pipe is arranged on the top of the kettle body, and the exhaust pipe is connected to an exhaust gas treatment device.

4. The crystallization drying system according to claim 1, characterized in that: A discharge port and a valve device are arranged at the bottom of the kettle body, and the outlet end of the valve device is connected to a material introduction pipe.

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