JPH04135305U - Waste plastic processing equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a waste plastic processing device that is small and capable of reducing crushing noise leaking outward. [Structure] A box-shaped main body case 12 is provided, and a cutter 24 consisting of a rotary blade 20 and a fixed blade 22 is arranged in the middle part of the main body case 12 in the height direction. A funnel-shaped melting furnace 78 is placed below the cutter 24 , and a container 150 is placed below the melting furnace 78 . A duct 14 extending perpendicularly from the side wall 26 is provided above the side wall 26 of the main body case 12. The opening 18 of the duct 14 is located at a position where the crushing sound generated when the waste plastic P is crushed by the cutter 24 is reached after being reflected on the wall surface at least once. Since the crushing sound is attenuated when reflected, the level of the crushing sound reaching outward from the opening 18 can be reduced. Further, by providing the cutter 24 above the melting section 56, a conveyance means for conveying the crushed waste plastic is not required, and the apparatus becomes compact.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a waste plastic processing equipment that crushes and heats and melts waste plastic. Regarding the location.

0002

[Conventional technology]

As a waste plastic processing device, waste plastic is heated and melted, then cooled and solidified. There is a waste plastic processing equipment.

0003 As shown in FIG. 4, this waste plastic processing apparatus 200 includes a crushing section 210. It is provided. The crushing unit 210 includes a cutter 2 that rotates within a box-shaped main body 218. 20 is provided, and lumps of waste plastic are collected from the input port 222 opened at the top. When P is input, this lumpy waste plastic P is crushed by the cutter 220. and falls below the cutter 220. Horizontal conveyance is provided below the cutter 220. A conveyor 212 is provided, and a conveyor 212 is provided downstream of the horizontal conveyor 212 in the conveying direction. A vertical conveyor 214 is provided on the side. This vertical conveyor 2 A melting machine 216 is installed on the side of the vertical conveyor 214. The waste plastic P transported to the 4 into the melting machine 216. A hot air generator 226 is connected to the melting machine 216. The waste plastic P in the melting machine 216 is heated by hot air from the hot air generator 226. It is heated and melted. The melted waste plastic P is placed below the melter 216. It falls into the container 228 where it is deposited, and is then cooled and solidified.

0004 By the way, in this waste plastic processing apparatus 200, waste plastic P is crushed. During this process, a crushing sound is generated, and this crushing sound is transmitted directly to the worker, making it difficult for the worker's ears to hear. It may bother you. In addition, each processing machine is arranged in order on the floor. Therefore, the entire device is large and requires a large installation space.

[0005]

[Problem that the idea aims to solve]

Taking the above facts into consideration, this invention is compact and can be installed outside the waste plastic processing equipment. To obtain a waste plastic processing device capable of reducing leaking and crushing noise. is the purpose.

[0006]

[Means to solve the problem]

The waste plastic processing apparatus according to claim 1 includes a main body that accommodates waste plastic. a melting section for melting the contained waste plastic; and a book above the melting section. The waste plastic that is created and stored in the body is crushed and the waste plastic is crushed. The present invention is characterized by comprising a crushing means for releasing the ticks into the melting section.

[0007] The waste plastic processing apparatus according to claim 2 is a waste plastic processing apparatus according to claim 1. in the waste plastic processing device, which is provided in the main body for introducing the waste plastic into the main body. The crushing noise generated when the waste plastic is crushed is reduced within the main body. It is characterized in that it is placed at a position that it reaches after being reflected at least once.

[0008] The waste plastic processing apparatus according to claim 3 is provided in the main body to dispose of the waste plastic. an inlet for introducing ticks into the main body; and an inlet provided between the inlet and the crushing means. and a conveying means for conveying the scraped waste plastic to the crushing means. It is characterized by

[0009]

[Effect]

In the waste plastic processing apparatus according to claim 1, the waste plastic is crushed by a crushing means. After being crushed, it is discharged to a melting section located below the crushing means. melting The waste plastic melted at the It is solidified and processed.

0010 In the waste plastic processing apparatus according to claim 2, when the waste plastic is crushed, The crushing sound generated in Reaches outside of the plastic processing equipment. Crushing sound is attenuated when reflected, so it is not a waste. The noise level of crushing sounds outside the plastic processing equipment is reduced.

[0011] In the waste plastic processing apparatus according to claim 3, when the waste plastic is crushed, The crushing sound generated by the The noise level of the crushing sound outside the waste plastic processing equipment is low. reduced.

0012

【Example】

[First example] A first embodiment of the present invention will be described with reference to FIGS. 1 and 2.

[0013] As shown in FIG. 1, the waste plastic processing apparatus 10 is a box-shaped book that is long in the height direction. It is provided with a main body case 12 as a body.

[0014] This main body case 12 has a hollow prismatic duct formed on the upper side wall 26. 14 are provided. This duct 14 projects perpendicularly from the side wall 26. The inside and outside are communicated through an opening 18 serving as an input port.

[0015] A lid 36 is attached to the lower end of the duct 14 via a hinge 34. An elastic hook 38 is attached to the lid 36 on the opposite side of the hinge 34. This hook 38 is connected to a protrusion provided near the opening 18 on the upper side of the duct 14. 40 to close the opening 18.

[0016] An exhaust chamber 62 is located near the upper corner of the body case 12 on the opposite side from the duct 14. is provided. In this exhaust chamber 62, a part of the space inside the main body case 12 has an upper wall. 64 and the inner surface of the side wall 27 on the side opposite to the side wall 26. It is surrounded by a plate 70 attached diagonally upward. An exhaust blower 72 is attached to the outside of the side wall 27 corresponding to the exhaust chamber 62. The exhaust gas inside the main body case 12 is exhausted to the outside through the exhaust chamber 62.

[0017] Inside the main body case 12, a cutter 24 serving as a crushing means is located approximately in the middle in the height direction. It is located. This cutter 24 includes a rotating blade 20 and a fixed blade 22. times The rolling blade 20 is perpendicular to the axis 30 which is parallel to the side walls 26 and 27 and is arranged horizontally. The blades 21 are fixed as a set of three at 120 degree intervals in a flat plane, as shown in FIG. A plurality of sets of these three blades 21 are arranged at regular intervals along the longitudinal direction of the shaft 30. It was formed by This shaft 30 has both ends attached to the side walls 26, 27 of the container 18. FIG. As shown in , it is rotated in the direction of arrow A. Note that the shaft 30 is in the opposite direction to the direction of arrow A in FIG. It may also be rotated in opposite directions.

[0018] On the other hand, the fixed blade 22 is formed of a flat plate-like member, and extends horizontally to the lower side of the shaft 30. It is located in As shown in FIG. 2, this fixed blade 22 has multiple blades corresponding to the blade 21. Several slits 32 are formed. The width dimension of this slit 32 is the thickness of the blade 21. It is slightly larger than the slit size, and when the rotary blade 20 is rotated, it will fit into the slit 32. The blade 21 is inserted into the hole. Therefore, when the rotary blade 20 is rotated, the blade 21 and the fixed blade 22, the waste plastic P is crushed and crushed. The plastic P passes through the slit 32 and falls. Note that the opening 18 mentioned above As shown in Figure 1, the location of is the crushing sound generated when waste plastic P is crushed. This is the position where the beam is propagated after being reflected at least once.

[0019] The lower part of the cutter 24 is a melting part 56, and this melting part 56 has a A funnel-shaped melting furnace 78 with a reduced opening cross section is provided. This melting furnace 78 A fall port 80 is formed at the lower end of the holder, and a hot air inlet 84 is formed in the side wall 82. are formed in large numbers. These hot air inlets 84 are horizontally long holes, The lower the melting furnace 78, the shorter the horizontal length. There is. Further, at the upper end of the hot air inlet 84, there is provided a diagonal opening toward the inside of the melting furnace 78. A hot air inlet cover plate 86 projecting downward is provided.

[0020] Between this melting furnace 78 and the side walls 26, 27, 104, 106 of the main body case 12, , a hot air stagnation chamber 90, and this hot air stagnation chamber 90 is connected to the side wall through a connecting pipe 92. The hot air generator 16 is connected to the hot air generator 16 located outside the hot air generator 27. In the hot air generator 16 , a burner 96 and a blower 98 are provided, and the air heated by the burner 96 is The blower 98 sends the hot air to the stagnation chamber 90 .

[0021] Further, a stopper 100 is attached to the drop port 80 of the melting furnace 78. . This stopper 100 is directed downward and inward from the lower end of the drop port 80 of the melting furnace 78. It protrudes radially, and unmelted waste plastic P of a specified size or more is caught. It seems to hang.

[0022] As shown in FIG. 1, a shutter 102 is provided below the drop port 80. . This shutter 102 has a pair of shutter shafts 108 located below the drop port 80. They are arranged in parallel at regular intervals, and as shown in FIG. 6 is rotatably supported. In the middle of these shutter shafts 108, there is a plate. A shaped shutter piece 122 is attached. Also, one of the shutter shafts 108 One end protrudes outward from the side wall 106 and a lever 134 is attached thereto.

[0023] The lower part of the shutter 102 is a cooling part 58, and the bottom surface 1 of the main body case 12 A container 150 is placed on top of the container 54 . Further, a door is provided on the lower side of the side wall 106. A door 152 is provided, and the container 150 inside the cooling section 58 can be removed by opening the door 152. can be extracted.

[0024] Next, the operation of this embodiment will be explained. When starting the melting process of waste plastic P, press the lever provided in the melting section 56. - 134 to hang down the shutter pieces 122 and 124 as shown by the imaginary lines in Figure 1. Then, the shutter 102 is opened, and the lid 36 of the duct 14 is opened.

[0025] Rotate the rotary blade 20 to remove styrofoam, polyethylene, polyvinyl chloride, When waste plastics P such as polypropylene are put in through the opening 18, these wastes are The plastic P is sandwiched between the rotating blade 20 and the fixed blade 26 that is closer to the side wall 26 than the shaft 30. It is crushed into small pieces. The sound of crushing when these waste plastics P are crushed is the source B of the crushing sound (in this embodiment, the blade 20 located approximately perpendicularly to the upper side of the shaft 30 and the fixed blade 26 closer to the side wall 26 than the shaft 30, as shown by an imaginary line. It does not reach outside the opening 18 in a straight line from (near the upper part of the plastic P). That is, the crushing sound occurs at least once on the inner wall surface of the main body case 12 or the duct 14. After being reflected above, it reaches the outside of the opening 18. In this way, toward the outside of the opening 18 The arriving crushing sound (arrow C in Figure 1) becomes a reflected sound, so the waste plastic processing equipment 10 The noise level of crushing sound outside is reduced (because sound is attenuated when reflected) ).

[0026] In this way, the crushed waste plastic P passes through the slit 32 of the fixed blade 22. It passes through and falls into the melting furnace 78. A predetermined amount of waste plastic P is placed in the melting furnace 78. When the waste plastic P is deposited, the deposited waste plastic P is melted.

[0027] The air heated by the burner 96 of the hot air generator 94 is turned into hot air by the blower 98. When the hot air is sent into the hot air stagnation chamber 90 through the connecting pipe 92, the hot air enters the hot air inlet. 84 into the inside of the melting furnace 78 and the side wall 82 of the melting furnace 78. Heat. As a result, the waste plastic P is exposed to the direct heating action of hot air. It is melted under the indirect heating action of the heat transmitted through the side wall 82 of the melting furnace 78. It will be done.

[0028] The melted waste plastic P is cooled by its own weight from the drop port 80 of the melting furnace 78. 58 into the container 150. At this time, waste plastic that has not been melted P is caught by the stopper 100 and remains in the container 150 of the cooling section 58 until it melts. It doesn't flow down. In addition, exhaust gas generated from waste plastic P when it is melted. is discharged to the outside of the main body case 12 by the exhaust blower 72.

[0029] The waste plastic P accumulated in the container 150 is naturally air-cooled and solidified here. Ru.

[0030] Note that when the cooled and solidified waste plastic P is taken out, the shutter 10 2, open the door 152 and take out the container 150.

[0031] In this way, the waste plastic processing apparatus 10 of this embodiment has a structure in which the waste plastics are crushed on the melting section 56. Since the cutter 24 as a means is provided and these are housed in the main body case 12, the melting Compared to conventional waste plastic processing equipment that has a cutter (crushing means) on the side of the melting part. Therefore, it does not require a large installation space.

[0032] Furthermore, since the crushing sound reaching the outside of the opening 18 becomes reflected sound, the waste plastic The noise level of the crushing sound outside the processing equipment 10 is low and does not bother the ears of the workers. There is no fault.

[0033] [Second example] A second embodiment of the present invention will be described with reference to FIG. Note that the structure is the same as that of the first embodiment. Components are designated by the same reference numerals and their explanations will be omitted.

[0034] As shown in FIG. 3, in this embodiment, the duct 14 of the main body case 12 is omitted. Instead, an opening 182 is formed. Further, on the outside of the side wall 26, A supply conveyor 160 is provided as a feeding means. This supply conveyor 1 60 is equipped with a box body 162 along the side wall 26, and inside this box body 162 there is a A pair of upper and lower rotating shafts 164 are provided. These 164 rotation axes are not shown. It is rotated by a motor in the direction of arrow E in FIG. These rotating shafts 164 have no An end belt 166 is wound around the endless belt 166, and a partition plate 168 is attached to the endless belt 166. They are set up at regular intervals. At the bottom of the box body 162 is a supply hopper as an input port. 170 is provided, and waste plastic P is inputted from the supply hopper 170. Then, the waste plastic P is placed on the partition plate 168 and conveyed upward, and the waste plastic P is placed on the partition plate 168 and transported upward to the opening 18. 2 into the main body case 12.

[0035] Further, a screw conveyor 172 is provided below the drop port 80 of the melting furnace 78. It is. The screw conveyor 172 is located at the center of a horizontally arranged cylindrical section 174. The cylindrical portion 174 is connected to the drop port 80 of the melting furnace 78, and the cylindrical portion 174 has a A screw 176 is disposed along it. This screw 176 is not shown. Rotationally driven by a motor, the waste plastic P flowing down from the drop port 80 is collected. It is transported to the opening 178 on the side wall 26 side of the cylindrical part 174 and discharged into the container 150. . Note that the hot air in the hot air stagnation chamber 90 also heats the cylindrical portion 174. .

[0036] In this embodiment, when the crushing sound passes through the interior of the supply conveyor 160, the endless It is reflected or absorbed by the belt 166, the partition plate 168, the inner wall surface of the box body 162, etc. Ru. Therefore, the noise level of the crushing sound reaching outward from the supply hopper 170 is It can be made even lower than the waste plastic processing apparatus 10 of the first embodiment.

[0037] In addition, as shown by the imaginary line in Figure 1, the inner wall surface (in Figure 1, the inner wall surface that is directly hit by the crushing sound) A sound absorbing material 180 may be provided on the inner circumferential surface of the top 14. This allows It is possible to further reduce the level of crushing noise reaching the outside of the plastic processing equipment 10. can.

[0038]

[Effect of the idea]

As explained above, the waste plastic processing equipment according to the present invention is small in size. It can be installed in a small space and also prevents leakage outside of the waste plastic processing equipment. It has an excellent effect of reducing the crushing noise that is generated.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a waste plastic processing apparatus according to a first embodiment of the present invention.

FIG. 2 is a partial sectional view corresponding to the left side view of FIG. 1, showing the inside of the main body case of the waste plastic processing apparatus according to the first embodiment of the present invention.

FIG. 3 is a sectional view showing a waste plastic processing apparatus according to a second embodiment of the present invention.

FIG. 4 is a sectional view showing a conventional waste plastic processing apparatus.

[Explanation of symbols]

10 Waste plastic processing equipment 12 Main body case (main body) 18 Opening (inlet) 24 Cutter (crushing means) 56 Melting part P Waste plastic 160 Supply conveyor (conveyance means) 170 Supply hopper (inlet)

Claims (3)

[Scope of utility model registration request] Claim 1: A melting section that is housed in a body that accommodates waste plastic and melts the housed waste plastic, and a melting section that is provided in the body above the melting zone and that crushes the housed waste plastic and the crushed waste. A waste plastic processing device comprising: crushing means for releasing plastic into the melting section. 2. A crushing sound generated when the waste plastic is crushed through an input port provided in the main body for introducing the waste plastic into the main body is arranged so that at least one crushing sound is generated within the main body.
2. The waste plastic processing apparatus according to claim 1, wherein the waste plastic processing apparatus is arranged at a position where the plastic waste is reached after being reflected more than once. 3. An input port provided in the main body for inputting the waste plastic into the main body; and a conveying device provided between the input port and the crushing means for conveying the waste plastic to the crushing unit. The waste plastic processing apparatus according to claim 1, further comprising the following.