Plastic extruder with preheating function
A plastic extruder and functional technology, applied in the field of plastic extruders, can solve the problem of inability to handle the residual gas of molten plastic, and achieve the effect of full utilization
Inactive Publication Date: 2022-08-09
张家港市弗兰德机械有限公司
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Problems solved by technology
[0004] In order to overcome the disadvantages that the existing plastic extruder is difficult to make full use of the heat in the extrusion process, and at the same time cannot handle the residual gas between the molten plastics, the present invention provides a plastic extruder with a preheating function
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Embodiment
[0030] A plastic extruder with preheating function, such as Figure 1-11 As shown, it includes a frame 1, a workbench 2, a support frame 3, a main box 4, a transmission box 6, a screw extrusion screw 7, an extrusion barrel 8 and a heating belt 11; the upper surface of the frame 1 is fixed with a workbench 2; the upper surface of the workbench 2 is bolted with three support frames 3; the upper surface of the three support frames 3 is bolted with a main box 4; the main box 4 is provided with an extruding barrel 8; the right part of the upper surface of the workbench 2 is provided with a transmission box 6; the transmission box 6 is connected with a screw extruding screw 7, and the rotation center of the screw extruding screw 7 is on the central axis of the extrusion barrel 8; the outer surface of the extrusion barrel 8 is fixed with several heating belts 11;
[0031] It also includes a blanking system, a heat recovery system, a circulation pipe 13, a casing 14 and a gas treatmen...
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The invention relates to the field of extruders, in particular to a plastic extruder with a preheating function. The technical problems that an existing plastic extruder cannot fully utilize heat in the extrusion process, and meanwhile residual gas between molten plastic cannot be treated are solved. According to the technical scheme, the plastic extruder with the preheating function comprises a main box, a heat recovery system and the like; a heat recovery system is connected into the main box. The sleeve is installed outside the extrusion barrel, outward diffusion of heat is reduced, the heat outside the extrusion barrel is taken away in time through the arrangement of the circulating pipe, the heat is transferred into the discharging barrel of the plastic particles, and full utilization of the heat is achieved; and a buffer plate is arranged, the molten plastic is subjected to buffer treatment, the passing speed of the molten plastic is reduced, a buffer box is arranged, the molten plastic in the buffer box is stirred, residual gas is separated from the interior of the molten plastic, high-temperature gas is pumped into a cavity between an extrusion barrel and a sleeve, and energy recovery is achieved.
Description
technical field [0001] The invention relates to the field of extruders, in particular to a plastic extruder with a preheating function. Background technique [0002] The existing Chinese patent (CN215589907U) is a plastic pipe screw extruder with a preheating device. By setting a preheating component, the raw material of the plastic pipe is preheated before the raw material is processed; but this operation mode is essentially Using an external power supply does not conform to the existing environmental protection concept. [0003] When the existing plastic extruder heats and extrudes the plastic, a large amount of heat will be discharged into the atmosphere, resulting in excessive heat loss. The lost heat can be returned to preheat the plastic particles to achieve full utilization of energy. The existing equipment is difficult to achieve. Make full use of this part of the heat loss; at the same time, there is residual air in the molten plastic during extrusion, and the resi...
Claims
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IPC IPC(8): B29C48/395B29C48/275B29C48/285B29C48/76B29C48/25B29C48/82
CPCB29C48/397B29C48/276B29C48/288B29C48/766B29C48/2526B29C48/832Y02P70/10
Inventor 尹建国刘佳豪周雷
Owner 张家港市弗兰德机械有限公司