TW426595B - Apparatus for pre-treatment and subsequent plastification or agglomeration of synthetic plastics materials - Google Patents

Abstract

An apparatus for pre-processing and subsequent plastification or agglomeration of synthetic plastics materials, in particular thermoplastic waste plastics for recycling purposes, has a receptacle (1) in which at least one comminuting tool (6) circulates. The housing (7) of a screw (8) is connected to the receptacle (1). The diameter (D) of the receptacle (1) is in the following relation with respect to the screw diameter (d): D=10*(K*D<SP>2</SP>)<SP>1/3</SP>, wherein D is the inner diameter of the receptacle in mm, d is the screw diameter in mm and K is a dimension-less constat which amounts to at least 190. Thereby the dwell times of the synthetic plastics material within the receptacle (1) are kept at optimal values.

Description

426 595 i. Description of the invention (1) | [Background of the invention] The present invention relates to a device for pre-processing and subsequent plasticizing or agglomeration of synthetic plastic materials, especially thermoplastic waste plastics as materials for recycling purposes. Cutting device and / or mixing device with at least one cycle, an inlet opening is provided above the storage place, so that the material processed in the storage place is fed into the screw housing to plasticize or condense the material, wherein the screw can be extruded Press the screw, and the screw rod housing is preferably arranged to be connected with the storage place. Such a device has been seen in many embodiments. '八 7 双 _, ~ 〇 Pre-processing of plastic material is cut first, however, it can also be replaced or mixed and dried and / or heated and / or crystallized and / or pelletized To process the material; in many of these devices, the pre-rotating material 2 is directly pressed into the extruded screw housing by a cyclically rotating tool located in the storage, where the screw housing is connected to the storage, and the other device is After leaving the storage place, the material enters a tube. The tube is equipped with a conveying screw, and the material is fed into the extruder screw housing through a horizontal or vertical guide, and finally made into the final plasticized material. That is, the length of the screw of a plastic screw can be roughly divided into three areas. It is also expected that the inlet area near the open end of the 55, then the compression or melting area, and finally the material area '", the screw depth in the measurement area is less than the material in the inlet area. Second, it is still loose in the entrance area. For example, after the sheet material enters the depth of the coarse &amp; screw, it will be more and more accepted by the commercial process. The commercial pressure device is in the measurement area. 5. In terms of the quality of pre-processed synthetic plastic materials, most

Page 4 426595 V. Description of the invention (2) The synthetic plastic materials and rubber materials obtained at the exit end of the screw failed to meet its standard requirements. The synthetic plastic f, which is researched, is mainly a plastic screw, followed by a storage place. ": Its in掸 Need to be determined 'This can be explained by the fact that in the storage place _ =: 2 unstable other batches of process materials have a longer stay time. The average retention time in the storage area can be determined by the storage place. The filling weight ^ ^ storage unit time is calculated by the screw output 螺杆, 鈇 true ^ weight divided by the mother —, with retention U is not 疋 most of the processing ^ residence time will be greater or less than cough level While the shape is consistent, these deviation values can explain the storage place: the deviation between the retention &quot; Γ, for example, different qualities; Γ is the same as the material batch of Γ, or it is the material it fails to fail or the rest In terms of the quality of homogeneous materials in aerodynamics and mechanics, if the depth of the auger screw is deep and the screw rotation speed is kept at a low speed, "'screw will also get better material quality, The study found: Interpreted as' for so In terms of screw geometry, the material capacity χ male force action in the process, the shear force (shear speed) of the material-in this process can be calculated by dividing the peripheral speed of the screw by the screw depth of the screw. The material can only withstand to a low degree of mechanical and thermal pressure. Therefore, the molecular chain of the synthetic plastic material will not be substantially affected by backlash ^ 〇, &quot; However, ^, if set at the exit of the screw-higher The added value of the equipment is to increase its performance, such as cutting and extrusion combined devices, you must increase the speed of talent, which means that the shear force will also increase, and 4265S5 in processing; 、 Invention Note (3) The material is also susceptible to high mechanical and thermal stress machines, because the molecular phase of synthetic plastic materials can be dangerous, and it is affected by this; In addition, the loss rate, especially When it is recycled; material: = = higher abrasion is more likely to occur, for example, when the material contains ς :, the abrasive things, the screw gold ^ abrasive particles, metal pieces will slide against each other. 1 Pu metal-has local abrasion, and it rotates slowly and cuts the screw with each other (under the condition of very deep rotation of the screw, the aforementioned degree) and the heterogeneity of synthetic plastic materials is faster. 5 For plastic materials, the temperature 'the temperature of the rim of the θ device must be equal to ㈡r ”', the synthetic plastic material is extruded on the actual processing, and the other must add extra power to the machine, and increase the power consumption = consumption &amp; The viscosity combination factor of the heat-threatening plastic material that becomes the aforementioned synthetic plastic material is that the difficulty of post-processing the material &amp; obtained at the exit end of the extruder is low, making the object liquid, resulting in-* ^ '1 ^ f ^ The above disadvantages and the improvement of the previous touch, in order to solve this-the higher production, the amount, and-the wide σ 1 deployment so that it can be maintained at the exit end of the screw, squeeze cry ^ In contrast, when the screw outlet condition is adjusted to 2 0 ^ 'complex and contour or the work temperature of a better quality material that can be adjusted to a relatively low temperature, it can also save energy and obtain

426 59R V. Description of the invention (4) [Summary of the invention] According to research found in this issue, the plastic materials handled in the storage place = have a considerable influence between them. Especially when the material is difficult to form, it can be very successful. Increasing the homogeneity of synthetic plastic materials in the storage place, and the homogeneity of the plasticizing and agglutinating quality of the material will have a ^ face shirt sound because the zelkova has provided a fairly fixed mechanical and flexible material, so that The homogeneous material no longer needs to be processed by the screw ':', In other words, the higher the quality of the synthetic plastic material pre-processing in the Benin possession, the later the plasticized or agglomerated synthetic plastic material in the screw housing is processed. Problems occur less frequently; research shows an amazing result: the above-mentioned work can be solved by a simple formula in the present invention, that is, keeping the diameter of the storage place and the diameter of the screw in the following relationship: D = 1〇 (Κ * d 2) 1/3 where D is the internal control of the cylindrical storage place, in mm, or it can also be assumed that the internal diameter of another storage place with the same capacity and the same height, also in mm Bit; _ a screw diameter D, in units of m m; K is a dimensionless constant, which is greater than or equal to a prime number. The aforementioned formula is a formula observed from experiments, so the units on both sides of the equal sign cannot be inconsistent. Compared with the general size, when increasing the storage volume (mostly | cutting machine storage), the synthetic plastic material pre-treated in the storage will be more | have uniform thermal homogeneity, even if the material is difficult Processed materials, 4PR ^ 95 V. Description of the invention (5) The quality ratio of unprocessed "cold materials" due to the fixed supply is lower than that under normal conditions. The average residence time of synthetic plastic materials in the storage also increased by a lot ^, and the decrease in the storage value has a positive effect on the homogeneity of the two materials of the screw shell 2 and the ratio of 2 to 3 from the storage, and also ... Mechanical ^ 1 and also directly affect the quality of the extruder screw-candle ^ plasticization or coagulation 'because it is not processed in the storage place: ^ 枓' s theoretical residence time is basically a constant, and, like this, ' It is more convenient to operate than a general factory to have a larger storage area, so that the storage area can be more easily operated to increase the accuracy of the supply area. For example, 'the following is a cutting machine storage area-under normal conditions Numerical values, in which the average solution flow index (丨) of the polyethylene obstruction during processing is 0.5, the average thickness of the obstruction is 80 //, and the average nuclear reactor weight in the storage space of the cutting machine is 225 Kg / dm3 is S grams: D — 1 0 0 0 mm Η-~~ 1 0 0 0 mmd = 8 0 mm I = 16 0 0 mm Cutting machine storage diameter d Cutting machine storage height η Screw diameter Screw length Cutting machine storage inside the material (Flaky) nuclear reactor weight, ._ Zi 3 8 kg //, outlet end E a = 38 kg / h The theoretical residence time can be deduced from the above formula: 1 \ E a = 3 8: 3 2 0 = 〇, 12 hours = 1 .3 points. From the formula given in the above column, a value corresponding to K = 1 5 7 is calculated. 4 26 5 9 5 V. Description of the invention (6) In the present invention, when The diameter and height of the storage place were increased to 1 300 mm, while the remaining conditions remained unchanged. The result: the diameter of the storage space of the cutting machine D = 1 3 0 mm The height of the storage space of the cutting machine Η ™ 1 300 mm screw Diameter screw length d I ~ 1680 mm 〇〇mm nuclear reactor weight Z i = 8 3 kg extruder exit end E a = 3 8 5 kg / small From the above list, the theoretical residence time value Z i: E a = 83: 385 = 0, 22 hours = 12, 94 minutes. In this case, the value of K is 3 4 3. If the two theoretical residence time values are compared, the result is increased by one; on the residence time factor, the value is 1. 8 1, which causes an increase factor at the exit end, and the value is 1. 2 (screw speed of 160 rpm still unchanged); retention time increased by 83%, resulting in an increase of 20% at the outlet end. When the K value is selected to be 3 5 3, given the screw diameter d (unit mm), the above formula can be used to calculate the storage place diameter D (unit mm), and the screw diameter d (mm) storage place diameter D (mm) 50 950 85 1353 105 1558 120 1703 145 1932 • 4 26 59 5 V. Description of the invention (7)-If the outlet setting value is increased or the capacity of the cutting ~ extruder combination set is increased by 2, the screw in the extruder of the same size The diameter is the same, and the spiral is increased: ΐ increase the screw speed, the material processed in the screw is not easy to cut! The use of 'this means that the quality temperature and loss of plastic materials will be reduced.' Especially for thermally unstable thermoplastics materials, 'this is very important', because the dagger will increase the capacity of the storage place: two: : More than 50% more output than ordinary cutting, the combination of presses is equivalent to Lang saves a considerable amount of energy, for example, density. The enthalpy curve of .92 g / cm3 of polybutylene shows that it saves melting energy (reduced by 20% at the process temperature), 25 W / Kg, which means it saves about 14.5% of energy. Increasing the height of the storage place (diameter + change) will increase the storage volume of the storage place, but there is no improvement in the quality of the processing material. This is because there is a shadow of a rotating tool in the storage place. Specific: The shape is "one-cone shape", which does not exceed a certain height, which means that when the synthetic plastic material circulating along the storage wall reaches the maximum height, the interior will drop to the central area of the storage, due to these factors Generally, a storage place with the same height and diameter is selected. As mentioned earlier, the storage place does not have to be cylindrical. Even in fact or due to manufacturing technology, the cylindrical shape has many advantages, except that the cylindrical shape = The shape of the storage place can also be converted into other shapes but the same storage volume. It is like a conical storage place or a cylindrical storage place whose plane projection is oval or oval. It is assumed that the height of this imaginary storage place is equal to its diameter. The situation that the height of the place exceeds the height of the mixed cone area has not been taken into account (considering the safety distance), because the excess height of the storage place handles the material and 4 26 5 9 5 V. Description of the invention (8) Influential. Theoretically, there is no upper limit for the increase of storage space. In fact, it is recognized by manufacturing technology and transportation factors-', ^ If the value of K is greater than the entire structure It will be one or two in a similar situation. The screw depth of the screw cannot be arbitrarily the diameter of the screw core. It must be able to support the torque applied to the screw. Under the structure, problems will occur. The screw's 钲, 工 ^ + dry shaft The outer side wall of the screw cup that is tangent to the storage is provided with a material. At the entrance of the bamboo, the screw front end reaches the device 'the other-the front end is transported toward an outlet, and a screw cup shell is set at the end. In this condition, Of course, in order to change the condition of the cap, it is necessary to keep the screw depth of the screw as far as possible in the screw housing. In the spirit of the present invention, these requirements will mutually shield each other under one condition; this is included in the housing of the rod. The structure forms a pocket, forming an additional hollow guide of synthetic plastic material into the screw housing, wherein the screw is directed towards the edge of the opening area directly toward the connected storage, a The ribs that are open relative to the inlet end are used to close the whole or part of the mouth. In other words, in addition to reducing the depth of the screw, the status of the screw inlet can also be obtained. In the spirit of the present invention, the screw shaft can also be radial or positive. It is cut in the cross section of the storage place. For example, the output hole of the screw is reduced toward the shell of the screw stalk at the depth of the agglutination device. It is well known that the agglutination device has a shallower screw. The theoretical screw agglomeration screw has a phase at the inlet end area and an adjacent central area.

, This upper limit &gt; shows, false condition. Increased, because of this knot cross-section, one driving the extrusion head in the-screw into: the mouth area, from the special I-shaped mouth area between the screw, you can: the spiral side :, adjustable bags, so as to. Get a better one | Take the device as I. Set the internal screw, device and plastic degree, the condensing depth, the depth of rotation, and the deepened depth I 426 595 i 5. Description of the invention (9) 丨 degree; in the measurement area, the ratio From the commonly used plasticizing screw, the depth of the agglomerating screw is low, so the material exists only in the measured area and stays for only a short period of time. It is strongly compressed and subjected to a shear force, but it is not plasticized. The agglomerating screw thus produces, at its outlet end, particles which are not completely plasticized but which only melt on their surface, which particles adhere to each other in a sintered manner. The detailed structure, purpose of the invention, and innovative and progressive features of the present invention can be more clearly understood from the following drawings and specific embodiments. Stored in the knot. 1BC-shaped shot-release shell outer rod screw has an example of Shi Mingming, 1 shot showing the cut-out single-faceted and plain-simplified into a water-based system. The picture shows a normal line cut like a shaft screw. Example implementation is another one; 1 The figure shows the prominent position shown in the horizontal direction is Tibetan storage. The second figure is connected to the 1BC cut positive shell outer rod screw. The example implementation repeatedly shows the display; The picture is stored in the vertical position of the disk. Turned around Je \ Rotary ° 8—Du * p. The tool belt is attached with a display. It is a four-section drawing of the figure. The rotation of the two tool belts is attached with the display display system; the five-picture drawing TUJ implements the VI III--η Figure Π Like · Along the near six-picture display is six. End of the zone D into the shell, the outer rod is screwed. Figure 426 595 V. Description of the invention (Illustration of the drawing number) 1 Storage 2 Side wall 3 Vertical axis' 4 Transport circle 5 Arrow 6 Tool 7 Shell 8 Screw 9 Inlet End 10 edge 11 axis 12 front end 13 drive unit 14 front end 15 exit End 16 Motor 17 Bearing 18 Bottom / 19 Bearing 20 Funnel 21 _ Opening 22 Material 23 Conveying Pallet Opening Position

Page 13 426595 丨 V. Description of the invention (11)! 24 25 I 26 I 27 ί 28 | 29! 30! 31 ΐ 32 I 33: 34; 35 37 38 39 40 41 42 43 44 45 46; 48: 49 arrow No. Hybrid Cone Arrow Transport Disc Gap Screw Bolt Screw Screw Supply Device Enlarged Area Bottom End Front End Exit End Opening Wall Leaf Rib Groove Adjusting Instrument Area Groove 'Lobe Rib Sleeve Cylindrical Groove Surface Upper Front End 426 595 Five Explanation of the invention (12) [Explanation of the embodiment] Due to space, the drawing does not correspond to the actual size, because in fact, the storage place is much larger than the picture shown in the drawing. Referring to FIG. 1 in May, the embodiment of the present invention is a cutting-extrusion compounding machine including a storage 1 and a side wall 2. The storage 丨 is provided with a circular cross-section, and the side wall 2 is cylindrical. Storage place 丨 The inner transport disc 4 rotates around the vertical axis 3, and its transport disc 4 is driven by a driving device (not shown in the figure. It is driven in the direction of the arrow 5. The transport disc 4 is set in the storage. There are many cutting (two-cut) and mixing tools 6 'on the top surface of the disc, which are used to process the synthetic plastic materials introduced into the storage place 1, and the thermoplastic materials will pass through during this process. It is cut and mixed; in fact, at the same height as these circulating action tools 6, it is tied to the storage wall 2 and the screw 8 is connected by the other 1; :: ancient ... zone moving device (not shown in the figure) Driven), and rotates around the axis 11, in this implementation, the screw 8 is a plastic made by its shape i. The plasticization is performed by the screw 8 housing 7 into the end opening 9 rounds. &gt; material, and transport this in a plastic condition: the pressing head on the right end of the screw (not shown in the figure) Coming up) The synthetic plastic material inside Zang Chu 1 has entered the opening 9 at the entrance smoothly:: Working assistance storage = When the opening 9 at the entrance is passed, the edge 10 of the aforementioned tool 6 can be 22: work, state, so that The synthetic plastic material is pressed into the inlet end like a spatula, and the shadow of the synthetic plastic material being rotated by the rotating tool 6 around the circle is equal to the shape of a compound cone, which rises along the side wall 2 of the storage 1 With ―

Page 15 Pre-cutting, pre-drying, and pre-heating of plastic materials in the storage place in order to get paid 426 595 V. Description of the invention (13) —— ------- The diameter D of the storage place 1 and the spiral screw 8 outside The relationship under the diameter d = u is .D = 10 (K * d 2) 1/3, single = the inner diameter is 2 units, and d is the diameter of the screw. It is a constant value of 190. When measuring in the direction of the circumference, the entrance end has a knot. When the material to be processed is guided along the outside of the storage place 1, the embodiment is broad, to help 2, with Ξ :: no, the screw 8 shell 7 is tangent to the side wall of the storage place 1 and Twenty-two: =: wall, not as shown in the figure-has the advantages: screw 8 can :, as shown in the embodiment of the device set 13 (only the schematic diagram is drawn from the picture: ：: 12 The driving device can be driven without setting the driving / setting 'moving screw 8' right front end 端 mouth end 15 to plasticize this anger, so that the user can use this opening 14 for transportation, for example, the plastic material is passed through the screw 8 The right front transport, for example, is led out by a squeeze J), so synthetic plastic materials can be transported through the outlet opening D i 5 which is not shown. The deviation can be achieved by the screw 8. ^ The embodiment in Figure-and Figure 2 is not very clear, the tool 6 is shown in Figures 2 and 3-it has a shape 6 like a blade or something similar, 'not visible' and its work is implemented in all In the example, the core diameter of the screw δ is toward the outlet of the screw 8 426595 5. The description of the invention (14) is increased, so the structure of the screw is reversed. Different screw furnaces, different screws 8 and the connection between the shell 7 and the storage 1 can be set at the core of the screw. The configuration of the driving device 13 'so the core diameter of the driving device or the area where the screw must bear the maximum torque. For a given environment, especially for the 0 area, the helix depth must mostly be adapted to the expected overall density. The given synthetic plastic material in the storage place 1 is shown in the storage and planting south of the fourth embodiment, and its inner diameter D, the transport disc 4 ^ by the effective depth Η is substantially equal to the floor plan bottom 18 is borrowed by Sayong 17 The motor 16 is driven, and an inlet end is provided above the storage place 1 and the mouth 2 = U bearing support is supported at the bottom 18; the storage place 1 is pushed by 22, and a part of the material funnel M is formed, as shown in the figure, the direction of the material arrow 24 Input, material two = sex sheet · Rotate in the form of mixing cone 25 by a conveying device 23 = Driven by 6 cycles of operation, it will rise straight when it reaches the storage place 丨 effective ancient ^ 22 follows the storage place 1 side The wall 2 is dropped to the middle of the storage place 1 once again: when it is used by gravity to increase the space of the storage place 1 in the invention, it is very advantageous: in the current residence time, even because of the material The shape is different from the average in the storage place 1) In such a process, the material will be a, the same as j, such as thickness, size ... The material will also have a relatively fixed material, and the material is not easy to handle. The inlet end is open 9. ^ Mechanical conditions enter the screw housing 7 In addition to the transport disc 4 of the embodiment of Fig. 5 and the implement 6 of Fig. 4, there is another-one thing is that in addition to having, the transport disc 27 also carries the transporter 4 : 1 The disc 27 is connected to the bearing 17, its structure and configuration and transportation circle Λ26595 V. Description of the invention (15) and 'the tool 6 can only be a material stuffing tool that compresses the plastic material into the inlet opening 9 of the screw ， Transportation disc 27 will promote the 葙 理: Reason, the synthetic material 22 enters 1 Ningzang 1, the material will only pass through the gap 28 between the transportation disc 27 and the side wall 2 of the storage 1 after processing. Reach the area of the transport disc 4 below. The thermal and mechanical uniformity of the synthetic plastic material in this area is better, and then the material will be guided into the shell 7 of the snail 8 with the middle of the tool. The transport circle with the tool 6 The tray 4 will guide the synthetic plastic material in the aforementioned structure into the opening 9 at the inlet end of the housing of the screw 8; in this embodiment, the mixing cone 25 is formed from above the transport disk 27, so the storage place 1 = effective height!! It must be counted from above the upper transport disc 27. As shown in the embodiments of FIGS. 6 and 7, the screw 8 housing 7 is connected to the inside of the storage place 1 through the inlet opening 9 and the rotation direction of the screw 8 is opposite to the conveying direction (arrow 26) and changes over the inlet 9 Forming a seal A screw talent; 1: Wang 2 9 and screw bolt 30 have the same rotation direction, and the screw bolt 29 has a narrower screw, and the screw 8 and the shell 7 are each provided by a cooling device with a fixed heat source, so that the operator The synthetic plastic material in process can be controlled under the required temperature; the rectangular inlet opening 9 is basically provided on the side wall of the screw peripheral 7 'directly adjacent to the outlet opening 37 of the storage 1 and its size It is so large that it extends to the two-rod spiral 30, as shown in the example; the height of the inlet end opening 9 measured in the direction of the axis of the storage site i is actually the same as the diameter of the screw inspection 30, which is as large as this ensures The screw 8 can carry a large amount of synthetic plastic material that the tool 6 presses into the inlet opening 9 to form a supply device 31. In the area of the inlet opening 9, there is a space in the screw housing 7 in addition to the screw bolt 30. The space is composed of Screw housing type 7 Expansion pocket region 32 is formed, the enlarged

Page 18 4 26 5 95 5. Description of the invention (16) The area 32 has a hollow cylindrical shape, including a wide area around the screw housing 7, and extending at least one screw 8 spiral 30 in the direction of the axis of the screw 8, as shown in FIG. In the embodiment, about 2.5 screw screws are shown, and the enlarged area 32 is directly connected to the inlet opening 9. The width of the enlarged area 3 2 measured in the direction of the screw 8 is better than a constant value of its better length, so that the depth of the pocket formed by the enlarged area 32 is substantially the same everywhere, and the enlarged area 32 is directly adjacent to the closed screw plug 2 9 and extending to the inlet opening 9 on both sides of the screw 8 in the axial direction of the screw 8 'extended area measured by the radial direction of the screw 8 3 2 The depth is approximately 5% to 10% of the diameter of the screw 8 At the entrance end 9 the low-end edge 33 (as shown in Figure 7) 'The enlarged area 32 descends through the level and communicates with the entrance end opening 9 so that the upper surface of the transport disc 4 is a horizontal continuous shape, from there' The curved storage area 35 is connected to the bottom is; at the upper edge of the inlet end opening 9, this edge is directly forward to the storage 1 in the direction of rotation of the screw 8 (arrow 34), and the enlarged area is provided with a wall portion 38 or Partially closed to the enlarged area 3 2 of the inlet opening 9; it is advantageous to erect the wall portion 38 in the form of an adjusting rib 3 g in a groove 40 and adjust the lowering level by an adjusting instrument 41. For example, the screw can be adjusted so that it faces the screw 8 Or move away from the screw rod 8; the adjustment area suitably contains the radial depth of the entire pocket, so that the ribs 39 protrude toward the periphery of the rod screw 30 and protrude from the front surface thereof, so that the position of the projection when the screw 8 rotates Form the screw 8 to bear the substantial resistance of the plastic I material; regarding the storage place, the inside, the special rib 39 closes the position of the pocket-like enlarged area 32, the rib rib screw-the same moving synthetic plastic material forms a substantial The resistance is such that the material is continuously compressed between the screw 8 and the screw 30, therefore,

Page 19 4 26 595 Fifth invention description (17) ^ The screw rotates but is transported along the axis of the screw; however, in the blade rib 3 9 button retracted position, the inlet 9 is a synthetic plastic material carried by the screw 8 Second, it is transported back to the opening 9 at the inlet side, so that the screw 8 is reduced in the direction of the arrow 26. With the optional center position of the rib 39 and the transportation of the screw 8, this I is adjusted to a certain maximum and a minimum. The values are in accordance with the suitable environmental conditions. If the synthetic plastic material will change its quality, for example, it will be particularly advantageous. For example, in this case, the screw 8 and its driving device are overloaded. Can be avoided. . Directly adjacent to the pocket-like enlarged area 3 2 is provided with a screw 8 shell 7 = area 42. This area 4 2 is provided with a plurality of groove structures on the inner surface, and the groove structures 4 3 are adjacent to each other and protruded by the wall of the area 42 The ribs 44 are separated by the solid and fixed ribs 44. These grooves 43 and ribs 44 extend in the direction 26 of the axis of the screw, and the daggers also rotate around this axis in a spiral shape; however, in Its longitudinal direction: the direction always has a weight that extends in the u direction of the screw axis. The height of the rib "is connected to the screw spiral 3Q s, and its surface faces the screw. Therefore, in this area 42 is like an abutment of the screw 8. In the direction of the great area 43, the depth of the groove structure 43 is preferably set to: The most expanded structure is that the depth of the end point of the groove 43 at the point where the synthetic plastic material is transported is equal to the direction of the radiopeptide The measured depth of the enlarged area 32 is such that there is no layer between the enlarged area 32 and the groove structure 43; however, each & leaf rib constitutes one layer, and the other-front 'groove structure 43 of the area 42 is gentle. Change into the outer diameter of the screw 8 (connected to the outer diameter of the screw), so that The bottom end of the groove structure 43 reaches the upper surface of the rib 44. The side wall of the groove structure 43 is provided with a grabbing mechanism to act on the synthetic plastic material transported by the screw 8. It is best to see the screw 426 595. V. Invention Explanation (18) The direction of rotation of the rod 8 (arrow 34) The side wall of the groove structure 43 will bend in the opposite spiral direction, so the ribs 44 provided between the groove structures 43 are about the ladder turning surface; the width between the groove structures 43 is the most Fortunately, they are all equal, and the width between the ribs 44 is also between the snail? The ratio of the width of the groove 43 measured to the width of the rib is about = right; set the groove 43 in the partition space of the shell 8 of the screw 8 An easy-to-exchange sleeve 45 (shown in Figure 6) is formed, and the side sleeve officer 45 is inserted into the cylindrical groove 46 of the screw housing 7 'safe in it', for example, by a concrete object or the like, as shown in the figure Not shown in particular: i: 45 forms a wear material, also contains anti-wear material, ^ ^ material, in order to allow the operator to easily change the casing mi "placed on the two faces 7, 7 and 7 of the screw 8 housing 7," The snail-like flange 47 is connected between e. Into the two ends ^ the lower edge of mouth 9 is formed like an f Curved surface 48 (preferably smooth changes into the front ends of the ribs 44 or grooves 43 respectively; the 48, upper: front end 49 can be chamfered to make it best fit the curved surface ° 9 to help synthetic plastic materials enter the screw 8 rotation. 1 'The ϋ plant uses an innovative way to connect the plasticizing screw 8 and the storage place 5; if the plasticizing screw 8 area is adjacent to the opening at the exit end 1 5 is provided with about two J, the diameter of the spiral forest is best. The length is greater than 7% of the diameter of the screw 5% :: a favorable condition of the gate 'experiments show particularly good values of the screw diameter between 7 * 5 / 〇 to 8. 5%. The ones described with this standard wire only This is a feasible embodiment of the present invention. Equivalent structural changes made in the scope of patents or patent applications should be included in the patent scope of the present invention.

Claims (1)

Λ9β R95 6. Scope of patent application 1. A device for pre-treatment and plasticizing or agglomerating into plastic materials after being thinned. It will be used for recycling thermoplastic Ke Miao master— 妯 播 + nu * 〇 waste plastic, including a A storage place (1) and at least—a cut through the hole and / s, s person λ 4, ,, ^ 4 / tc * σ tool (6), the top of the storage place (1) is provided with a material inlet opening, , + _, „LL U1) to process the material, the _ material in the storage place (1) is fed into the screw (8) shell (7) to plasticize or agglomerate the material and the storage place ⑴ diameter ⑻ and The diameter (⑷) of the screw (8) has the following relationship: 1 · D = / 0 (K * d2) '1/3, where D is the inner diameter of the storage place (1), which is indicated by a pen meter in the early position, and d is the screw ( 8) Diameter, expressed in millimeters, and K is a constant value of at least 190. 2. The device described in item 1 of the patent application range, wherein the value of κ is greater than 200. 3 * As in item 1 of the patent application range or The device according to item 2, wherein the cross section of the axis (11) of the screw (8) and the storage place (1) is arranged radially or secantly. 4. If item 1 or 2 of the scope of patent application is applied The device according to the item, wherein the axis (π) of the screw (8) is tangent to the cross section of the storage place (1) and the side wall of the screw (8) housing (7) is provided with an inlet opening (9) to facilitate the stalk (8) carrying the material 'and one front end (12) of the 1 screw is connected to a drive device (13)' and the other front end (1 4) is transported toward the outlet end (1 5); 7) An extrusion head is provided at the front end. 1 5. The device described in item 4 of the scope of patent application 'wherein when compared with the remaining area of the screw (8), the plasticized screw is adjacent to the inlet opening at its area （(9 ) Has a deeper spiral depth. | 6. The device described in the first or second item of the patent application scope, wherein the opening of the plastic screw (8) area adjacent to the exit end (15) has at least 5% The depth of the spiral, Page 22 426595 VI. Patent application scope Especially the screw between 7.5% and 8. 5¾ is better than the depth of the screw straight bar and the diameter of the rod. 7. The device as described in the scope of patent application, item 2 or item 2, has a region (9) at the entrance (9) at the inlet end of the casing (7) with an enlarged area similar to a pocket. The stem (32), whose enlarged area (32) contains a space for guiding the synthetic plastic into the housing of the screw (8) (Ί0, the edge of the opening (9) at the inlet end of which the screw / turn direction faces the adjacent storage ' At (1), the ribs (39) completely close the enlarged area (3 2) with the opening (9) opposite to the inlet end completely. Part S Page 23