Plastic dehumidifying dryer hopper type
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Manufacturing method of plastic dryer
The utility model relates to the technical field of plastic drying equipment, more specifically, the utility model relates to a plastic dryer.
Background technique:
Plastic pellets need to be dried before being processed into products. The patent application number 2015209804022 discloses a plastic particle dryer, which is equipped with a drying cylinder and a baffle plate. The baffle plates are installed in the drying cylinder obliquely and staggered. The lower part of the drying cylinder is provided with a heating chamber to pass into the drying cylinder. Hot air, in which the plastic particles go down along the deflector, and the hot air travels up to dry the plastic particles. In this technical solution, under the limitation of the deflector, the hot air goes up along the Z-shaped route. When the plastic particles are attached to the deflector and go down, only the upper surface is in contact with the hot air to be dried, while the plastic particles adhere to the deflector. One side of the board cannot be in contact with the hot air, resulting in low drying efficiency. Therefore, although the design of the baffle increases the drying time, there is still much room for improvement in drying efficiency. At the same time, the plastic particles are pumped into the drying cylinder through the hoist in agglomerates, which cannot be spread evenly and effectively, which indirectly affects the efficiency and effect of drying.
Technical realization elements:
One purpose of the present invention is to solve at least the above-mentioned drawbacks and provide at least the advantages described later.
In order to achieve these objectives and other advantages according to the present utility model, the present utility model provides a plastic dryer, which includes a drying box and baffles staggeredly arranged in the drying box, wherein:
The drying box is a rectangular parallelepiped structure, the upper end of the drying box opens to form a feed port, the feed port is provided with a first baffle plate and a second baffle plate, the first baffle plate and the second baffle plate The material plates are arranged obliquely to form a funnel structure, and the lower ends of the first baffle plate and the second baffle plate have a gap to form the lower opening of the funnel; the first baffle plate is relatively fixed to the side wall of the drying box, The baffle plate and the second baffle plate are combined to form a lower opening. After the plastic particles enter the funnel structure, they are spread out and fall into the drying box by the opening to prevent the plastic particles from forming agglomerates into strands. Not easy to be dried by hot air.
The deflector is arranged in a wave-shaped concave-convex curved structure, an arc-shaped plate is built at the concave portion of the deflector, the arc-shaped plate seals the concave portion to form a channel, and the arc-shaped plate is provided with a first An air hole communicates with the channel, and the convex part of the baffle is provided with a second air hole penetrating the upper and lower sides of the baffle; when hot air is introduced into the channel, the hot air is ejected from the first air hole, which can be more precise It is sprayed on the surface of the plastic particles, and the hot air sprayed at the same time can also lift the plastic particles up in the air. The hot air coming up from the bottom can also continue to go up through the second air hole on the baffle, and carry moisture. The diameter of the second pores is smaller than the particle diameter of the plastic particles.
The wave-shaped concave-convex and curved deflector has the following advantages compared with the straight deflector: when the plastic particles roll down on the wave-shaped deflector, the parabolic up and down movement will occur, which increases the hanging time of the plastic particles. In the process, the four sides of the plastic particles are dried by hot air, which increases the heated area. Compared with the plastic particles on the flat deflector, only the upper surface of the plastic particles is dried by the hot air. At the same time, the wave-shaped deflector can The plastic particles are thrown on to disperse the plastic particles to avoid the accumulation of plastic particles on the deflector and affect the drying effect.
The opening at the lower end of the drying box forms a discharge port, and the lower end of the drying box is also provided with a hot air blower to pass in hot air, and the hot air blower is also communicated with the passage through a pipe to pass hot air into the passage. Direct use of hot air blower for air supply, higher efficiency and smaller volume.
Preferably, in the plastic dryer, one end of the second baffle is hinged on the side wall of the drying box, and an electric telescopic rod is supported under the second baffle, and the electric The telescopic rod expands and contracts to adjust the size of the gap. The outer wall of the drying box is provided with a switch, and the switch is connected with the electric telescopic rod. The expansion and contraction of the electric telescopic rod is electrically controlled by the switch to control the size of the gap and the flow of plastic particles to ensure the drying effect and efficiency.
Preferably, in the plastic dryer, the lower end of the drying box is surrounded by four plates into a funnel shape, and the discharge port is located at the center of the four plates. The hot air blower is arranged on the outer wall of the four plates. The four plates are provided with a plurality of third air holes, and the hot air blower communicates with the third air holes to send air to the inside of the drying box. The hot air blower supplies air to the inside of the drying box through the third air holes of the four plates. The wind power of the hot air blower is dispersed by multiple third air holes, which makes the wind more uniform, avoiding the formation of vortexes of wind to blow up the plastic particles and affect the uniformity of drying .
Preferably, in the plastic dryer, the deflector is hinged to the side wall of the drying box, and a spring support is arranged between the deflector and the side wall of the drying box so that the deflector can produce Vibrating, the baffle and the side wall of the drying box form an angle of 45-60°. When plastic particles fall onto the deflector from above, the elastic force of the spring will make the deflector vibrate. Moderate vibration will help to disperse the plastic particles evenly and avoid piles and strands. The setting of the angle allows the plastic particles to fall under their own weight to avoid remaining on the deflector.
Preferably, in the plastic dryer, the upper side wall of the drying box is further provided with an air outlet, the air outlet communicates with the air inlet of the hot air blower through an air outlet pipe, and the air outlet pipe is also connected in series There is an air dryer filter. The hot air can continue to be used after the water is removed to reduce heat loss and avoid wasting resources. The air dryer filter is a commonly used water vapor filtering equipment. The filter material is installed inside the filter to filter the hot air. The filter material is water-absorbing substances such as activated carbon or quicklime.
The utility model includes at least the following beneficial effects:
First of all, the present invention sets the first baffle plate and the second baffle plate to disperse the plastic particles, so that the plastic particles are evenly spread out and then enter the drying box for drying, which prevents the plastic particles from forming agglomerates and improves the drying process. Effectiveness and efficiency.
Secondly, the present utility model sets the deflector into a wave-shaped curved structure, and the plastic particles undulate up and down on the deflector, which increases the time for the plastic to hang in the air, increases the contact area of the plastic particles with the hot air, and improves the drying efficiency.
Finally, in the present invention, a spring support is arranged between the deflector and the side wall of the drying box. The spring can cause the deflector to generate a proper amount of vibration, and the vibration makes the plastic particles on the deflector more dispersed and facilitates drying.
The other advantages, objectives and features of the present invention will be partly embodied by the following description, and partly will be understood by those skilled in the art through the research and practice of the present invention.
Description of the drawings
Fig. 1 is a schematic structural view of an embodiment of the plastic dryer according to the present invention;
Figure 2 is a schematic structural view of another embodiment of the plastic dryer of the present invention;
Figure 3 is a schematic diagram of the structure of the deflector of the utility model.
detailed description
The following describes the utility model in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it with reference to the text of the description.
As shown in Figures 1, 2 and 3, a plastic dryer includes a drying box 1 and baffles 2 staggeredly arranged in the drying box, wherein:
The drying box 1 has a rectangular parallelepiped structure, the upper end of the drying box opens to form a feed port, and the feed port is provided with a first baffle plate 3 and a second baffle plate 4, three first baffle plates 3 The sides are respectively fixedly connected with the three side walls of the drying box 1 so that the first baffle plate 3 and the side wall of the drying box 1 are relatively fixed, and the first baffle plate 3 and the second baffle plate 4 are arranged obliquely to form a funnel Structure, and the lower ends of the first baffle 3 and the second baffle 4 have a gap 5 to form the lower opening of the funnel; the gap between the first baffle 3 and the second baffle 4 is one The font structure makes the lower opening of the funnel structure a straight shape. The plastic particles will be evenly dispersed through the flat opening, and they will form strands through the circular opening. After the plastic particles enter the funnel structure, they will be opened in a straight shape. Spread out and fall into the drying box to prevent plastic particles from forming into agglomerates and not easily dried by hot air.
The deflector 2 is configured as a wave-shaped concave-convex curved structure, as shown in FIG. 3, an arc-shaped plate 13 is built at the concave portion of the deflector 2, and the arc-shaped plate 13 closes the concave portion to form Channel 12, the arc-shaped plate 13 is provided with a first air hole to communicate with the channel, so that the hot air in the channel can be ejected from the first air hole into the drying box to dry the plastic particles above the arc-shaped plate. The convex part of the flow plate 2 is provided with a second air hole 14 that penetrates the upper and lower sides of the baffle so that the hot air below can pass through the second air hole to dry the plastic particles above. The diameter of the first and second air holes is smaller than that of the plastic particles. path.
The opening at the lower end of the drying box 1 forms a discharge port 7, and the lower end of the drying box 1 is also provided with a hot air blower 6 to pass in hot air inward, and the hot air blower 6 is also communicated with the channel 12 through a pipe to connect to the channel Pass in hot air. The pipe can be arranged on the inner wall or the outer wall of the drying box, preferably the inner wall. The pipe arranged on the outer wall penetrates the side wall and communicates into the channel 12, and the pipe arranged on the inner wall communicates with the air outlet of the hot air blower and then moves upward along the inner wall. , And then communicate with the channel 12.
Further, the upper end of the second baffle plate 4 is hinged on the side wall of the drying box, so that the lower end of the second baffle plate 4 can swing up and down, and the bottom of the second baffle plate 4 is connected to the drying box. 1 There is an electric telescopic rod 8 supported between the side walls, and the electric telescopic rod 8 can drive the second baffle 4 to swing up and down to adjust the size of the gap 5. The outer wall of the drying box 1 is provided with a switch 9 which is connected with the electric telescopic rod 8 to control the expansion and contraction of the electric telescopic rod.
Further, the lower end of the drying box 1 is surrounded by four plates into a funnel shape, the upper ends of the four plates are respectively connected and fixed with the four sides of the drying box, the lower part is continuously reduced to form a discharge port, and the sides of the four plates are spliced and closed , The discharge port is located in the center of the four plates. The hot air blower 6 is arranged on the outer wall of the four plates. A plurality of third air holes are provided on the four plates, and the hot air blower 6 communicates with the third air holes to send air to the inside of the drying box.
Further, the baffle 2 is hinged to the side wall of the drying box 1 so that the baffle 2 can swing up and down, and a spring 10 is provided between the baffle and the side wall of the drying box to support the flow. The plate can generate vibration, and the deflector forms an angle of 45-60° with the side wall of the drying box. When plastic particles fall onto the deflector from above, the elastic force of the spring will make the deflector vibrate. Moderate vibration will help to disperse the plastic particles evenly and avoid piles and strands. The setting of the angle allows the plastic particles to fall under their own weight to avoid remaining on the deflector.
Further, the upper side wall of the drying box is also provided with an air outlet, the air outlet communicates with the air inlet of the hot air blower 6 through an air outlet pipe 11, and an air dryer filter is connected in series on the air outlet pipe 11. The hot air can continue to be used after the water is removed to reduce heat loss and avoid wasting resources. The air dryer filter is a commonly used water vapor filtering equipment. The filter material is installed inside the filter to filter the hot air. The filter material is water-absorbing substances such as activated carbon or quicklime.
The realization process of the utility model: start the hot air blower, the hot air will go up from the lower part of the drying box, pass through the second air hole and the interval between the baffle plates at all levels, and the hot air will also be ejected from the first air hole through the channel; From the upper end of the drying box, plastic particles enter the funnel structure formed by the first and second baffle plates, and fall into the drying box from the gap between the first and second baffle plates, and the plastic particles fall Into the deflector, and move correspondingly along the surface of the deflector. When the plastic particles pass over the arc-shaped plate, they are first dried by the hot air ejected from the first air hole and pass over the second air hole. When it is dried for the second time, when the parabola falls from the upper baffle to the lower baffle, the hot air continues to be dried, and the plastic particles dried for many times are finally discharged from the discharge port.
Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for the utility model. For those skilled in the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and equivalent scope, the present invention is not limited to the specific details and the illustrations shown and described here.
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