CN1449324A

CN1449324A - Device for processing of waste of polymeric materials

Info

Publication number: CN1449324A
Application number: CN01813434A
Authority: CN
Inventors: 叶连娜·瓦季莫夫娜·安德烈耶夫娃; 安娜·弗拉基米罗夫娜·祖布科娃
Original assignee: W G NICOLSKY
Current assignee: W G NICOLSKY
Priority date: 2000-08-23
Filing date: 2001-08-22
Publication date: 2003-10-15
Also published as: WO2002016103A1; JP2004537433A; RU2167057C1; KR20030041975A

Abstract

The inventive device for recycling polymeric waste materials comprises a body (1) provided with a loading (2) and unloading (3) orifices. A pressure spiral conveyor (4) and a recycling unit (5) are arranged inside the body in such a way that they are rotatable, mounted successively and rigidly connected to each other. The recycling unit (5) is embodied in the form of several backing elements which are embodied in the form of annular lobes (7,8,19,20,21), successively mounted on a rotatable shaft and divided by annular grooves (9,10,22,23,24) in such a way that they form a corresponding number of annular chambers (11,12,25,26,27) which are successively arranged between the inner surface of the body (1) and the surfaces of the annular grooves (9,10,22,23,24). Circular clearances (13,14,28,29,30) are formed between the tops of the lobes (7,8,19,20,21) and the inner surface of the body (1). Said circular clearances (13,14,28,29,30) have width values which are progressively reduced in the direction of the unloading orifice (3). The annular grooves (9,10,22,23,24) have width values and/or depth limit values which are progressively reduced in the direction of the unloading orifice (3). The recycling unit (5) is provided with cooling means (17) and/or the body (1) is provided with cooling means arranged in the zone of the recycling unit (5). The pressure spiral conveyor (4) is provided with cooling means (16) and/or the body (1) is provided with cooling means arranged in the zone of the pressure spiral conveyor (4).

Description

Be used to handle the equipment of waste of polymeric materials

The present invention relates to the polymeric material process field, for example can be used for handling, more particularly be used for recycling waste vapour vehicle tyre and aero tyre by various fibers, synthetic or waste of polymeric product that metal wire is strengthened.

During the processing of the waste of polymeric of strengthening, must note more peeling off, also must be noted that all reinforcing components are separated with polymer substrate, so that reuse polymer and reinforcing component best.

For the processing of damaged tire, use grinder, grater or disk crusher and beater grinder that material fragmentation is become small sized particles (I.I.Tugov, " damaged tire utilize problem " usually with cord fibers, Moscow, Rostechizdat, 1962, the 43-48 pages or leaves).

The shortcoming of known device is that resulting product quality is relatively poor, because during using these device processes tires, and rubber but also also have cord fibers crushed not only, and a large amount of rubber keeps boning with cord fibers therein.The refuse of this crushing is separated into rubber and rope if not impossible words suitable difficulty then.For example, when adopting vibratory sieve to separate, cord fibers comprises the rubber of 20-50wt%, and rubber crumb comprises the cord fibers of about 5-15wt%.Make the cord fibers burning of being polluted then, purify repeatedly and make by the rubber crumb of fiber contamination by rubber.

Known have a kind of equipment that is used to handle the rubber article of being strengthened by metal wire, this equipment comprises work chamber, in described chamber, be equipped with and be used to destroy the broken chamber of industrial rubber article and the feed arrangement of gaseous medium, the gas source that contains ozone is as described feed arrangement (the patent N2060882 of the Russian Federation, IC B29B 17/02,17.09.92).Adopt this known device to handle that damaged tire can make rubber and the synthetic crude rubber powder that separates with metallic cable and obtain to be produced, metal wire and the mixture of the line of the synthetic rope quite grown.Can be easy to afterwards this mixture be separated by suitable separator.

The shortcoming of this known device is, in operating process, the oxidation and the degraded of rubber macromolecule can occur.Therefore, the rubber powder that produces like this has limited practicality.In addition, this known device is characterised in that the complexity in the operation, because when this equipment of use, the gas that contains ozone of high oxidation powder may spill in the environment to prevent to have very to need to adopt special arrangement to protect the staff.

The immediate prior art of the present invention is a kind of like this known device that is used for from producing polymeric material powder, and this equipment comprises the cylinder blanket with entrance and exit, and the processing component that is provided with clamping screw and this equipment in described shell promptly grinds rotor.This grinds rotor and is designed to the rotary body shape and is rotatably mounted, and forms long annular gap and aim at clamping screw with respect to inner surface of outer cover, so describedly grind rotor and clamping screw is docking together mutually.In the surface of described clamping screw, at its end place adjacent with grinding rotor and/or in the surface that grinds rotor, the degree of depth that cuts out its shallow section at its place, end adjacent with clamping screw is the annulus of 1-8mm.This equipment is provided with and is used to cool off the device (the patent N2057013 of the Russian Federation, IC B29B 17/00, date 07.02.94) that grinds rotor and/or be used for cooled enclosure in the rotor-position zone.

This known equipment can be handled the damaged tire with synthetic and metallic cable.In operation, material piece to be processed is transported in the annular gap under the effect of clamping screw, and in fact remains not broken.During the conveying of material in described quite long and narrow annular gap, realized decomposition, and pressure descends.Under the setting of above-mentioned condition, in fact can realize all stages of this decomposable process simultaneously, promptly strengthen rope and be transformed into little powder and partly be transformed into the fine powder that constitutes by particle with loose structure and very large specific surface with the crushing that separates, restricts and the rubber part of rubber.The granule of the metallic cable of Chan Shenging penetrates in the rubber grain with loose structure like this, forms various forms of agglomerates with these particles then and in inside, annular gap.All make method that these metallic particles separate with rubber powder even all are unsuccessful by Magnetic Isolation.Metal has reduced the quality of using the handled polymeric material of this known device at the high-load (0.5-2.0wt%) of rubber powder, therefore resulting powder limited by practical.In addition, the metallic inclusions in powder causes rotor and the shell all can rapid wearing, the therefore service life of greatly having reduced equipment when handling these tire spares.Therefore the design feature of this known device is limited by the long annular gap between shell and rotor with other factors, and described feature provides necessary condition under grinding of not restricting simultaneously and situation that rubber grinds polymer is separated with rope anything but.

The technical result of equipment that is used to handle the polymeric material refuse of reinforcement according to the present invention is to be provided for making the device of polymer and reinforcing component surface isolation, thereby these reinforcing components can not be accompanied by fragmentation or have only suitable fragmentation.

This technical result is near pressurization screw rod and the processing unit that is arranged on the discharge port by providing a kind of equipment that is used to handle waste of polymeric materials to realize that it comprises the shell with charging door and discharge port, being rotatably mounted with in described shell.Described parts produce and hinder effect, move towards discharge port from charging door thereby hinder material to be processed.This pressurization screw rod and processing unit sequence alignment are provided with, and butt joint rigidly mutually.This processing unit is provided with cooling device, and/or this shell is provided with cooling device in the band of position of pressurization screw rod and processing unit.

According to the present invention, processing unit is designed to many obstruction parts that are provided with in proper order one by one at the rotatable shaft place, described obstruction parts are designed to the annular ridge shape, and separate by annular groove, thereby form the annular compartment between inner surface of outer cover and the described annular groove surface that is set in sequence in of respective numbers thus.Be formed with the annular gap between the top of annular ridge and inner surface of outer cover, the width in described gap reduces towards discharge port, and described groove is arranged to width and/or limit depth reduces towards discharge port.In addition, pressurization screw rod and/or the shell that is positioned at pressurization screw rod zone are provided with cooling device.

The limit depth of annular groove refers to the depth capacity of groove.

Specifically, annular ridge is designed to rectangle, trapezoidal or triangular section shape, and annular ridge can be provided with 2-10 in addition.

Specifically, in this equipment, the ratio of the width of annular groove and the width of adjacent grooves can be 1.05-2.0.In addition, the ratio of the limit depth of the limit depth of annular groove and adjacent annular groove can be 1.05-2.0.

Specifically, the annular groove of close discharge port can be designed in this equipment, and the big 1.1-2.0 of mean breadth that its mean width ratio is seen the annular ridge adjacent with this groove from charging door doubly.

In this equipment, these annular grooves can be designed to rectangle, trapezoidal, triangle or semi-circular transverse cross-section shape.

In this equipment, transverse shape be rectangle, trapezoidal, triangle or semicircular vertically and/or inclined groove can be arranged on the surface of annular ridge.

Vertical or inclined groove refers to its axis respectively along the axis of processing unit or those grooves that tilt with this axis.

Specifically, the length summation of pressurization screw rod and processing unit is 2.0-3.5 with the ratio of the diameter of pressurization screw rod in this equipment, and the ratio of the length of the length of pressurization screw rod and processing unit is 1.0-5.0.

In this equipment, these annular gaps can be designed to, and the width that reduces towards discharge port is like this, thereby the ratio of the width of the width of annular gap and adjacent segment equals (1.1-3.0): 1.

In this equipment, transverse shape be rectangle, trapezoidal, triangle or semicircle and have constant or variable pitch forward and/or these helical grooves of inverse direction can be arranged on the inner surface place of shell.

Specifically, in this equipment, the device that is used to cool off the device of this pressurization screw rod and be used for the cooling processing parts can be designed to them and can work in coordination with or operation separately.

In this equipment, be used for cooling off at the device of the shell in pressurization screw position zone and be used for cooling off device at the shell of the processing unit band of position and can be designed to them and can work in coordination with or operation separately.

Because design feature of the present invention, more particularly because processing unit is designed to a plurality of obstruction parts that are provided with in proper order one by one at the rotatable shaft place, described obstruction parts are designed to the annular ridge shape, and also have at the inner surface of shell and be formed with the annular compartment that the order of respective numbers is provided with between the surface of the annular groove between the annular ridge, so the equipment that is used to handle waste of polymeric materials is for separating and broken useful effect on the polymeric material of being strengthened by rope or fiber is providing best condition.Described design feature helps progressively increasing temperature during material processed and remains on pressure in the annular compartment that many orders are provided with, thereby separates the most effective condition that provides with reinforcing component for polymer.When the annular gap of this material by from an annular compartment to another annular compartment, carry out separating fully of polymer and reinforcing component surface, and for example synthetic rope of the reinforcing component of peeling off, metal wire etc. in fact maintenance do not have destroyed.This causes the abrasion of processing unit surface and inner surface of outer cover to reduce in the back.Specifically, in the processing of the fragment of damaged tire, the material of pouring out from discharge port is the mixture of the fiber of crude rubber powder, quite long metal wire and synthetic rope.For later purposes, this mixture is easy to be divided into each component by the method that magnetic or vibration-selection by winnowing are separated.

According to the present invention, vertically and/or inclined groove the layout of the surface of annular ridge and forward and/or the layout of inverse direction helical groove at the inner surface place of shell help to improve the efficient that polymer and the fiber surface of strengthening this rope are peeled off, thereby seldom fragmentation just appears in follow fragmentation or they that reinforcing component can not occur.

To be used to cool off the device of pressurization screw rod and be used for that the cooling processing parts are designed to work in coordination with or operation separately, this provides the most effective cooling for this equipment on to the processing of the polymeric material of any specific.

Technical scheme required for protection can show that with the comparison near prior art this technical scheme required for protection meets the novelty standard, and the distinguishing characteristics of the present device that does not have in the prior art shows that this equipment meets creative standard.

Interim examination according to present device shows that this equipment has the possibility of extensive industrial applicibility.

Fig. 1 is the full view (cutaway view) of an embodiment that is used to handle the equipment of waste of polymeric materials, processing unit is designed to be set in sequence in one by one a pair of obstruction parts at rotatable shaft place in this embodiment, described parts are designed to the annular ridge shape, and are provided with helical groove at the inner surface place of this shell;

Fig. 2 is the full view (cutaway view) of an embodiment that is used to handle the equipment of waste of polymeric materials, this processing unit is designed to be set in sequence in one by one five assemblies that hinder parts at rotatable shaft place in this embodiment, described parts are designed to the annular ridge shape, and are provided with helical groove at the inner surface place of this shell.

Therefore, the equipment that is used to handle waste of polymeric materials shown in Figure 1 comprises the shell 1 with charging door 2 and discharge port 3.In described shell 1 inside, be provided with the pressurization screw rod 4 and the processing unit 5 that have annular groove in its surface, and described screw rod and described parts are rotatably installed and the sequence alignment setting, and butt joint rigidly mutually.Processing unit 5 is designed to a pair of obstruction parts that are provided with in proper order one by one at rotatable shaft 6 places, described parts 5 are designed to the shape (having trapezoidal transverse face shape) of two

annular ridges

7 and 8, and be formed with two

annular grooves

9 and 10, and be formed with the

annular compartment

11 and 12 between the surface of two inner surfaces that lay respectively at shell 1 and annular groove 9 and 10.Width and limit depth from the nearer annular groove 10 of discharge port 3 are littler one times than annular groove 9 respectively.From charging door, annular compartment 11 is limited by pressurization screw rod 4, and from discharge port, it is limited by annular ridge 7.From charging door, annular compartment 12 is limited by annular ridge 7, and from discharge port, it is limited by annular ridge 8.Be formed with annular gap 13 and annular gap 14 respectively between the inner surface of the top of

annular ridge

7 and 8 and shell, the width of described annular gap reduces towards discharge port.Be provided with at the inner surface place of shell 1 have constant pitch and trapezoidal transverse face shape forward with the helical groove 15 of inverse direction.This equipment is provided with the device 17 that is used to cool off the device 16 of pressurization screw rod and is used for the cooling processing parts, and described device is designed to be able to co-operating.This equipment also is provided with the device 18 of the shell that is used for cooling off the zone that is provided with pressurization screw rod and processing unit therein.

The equipment of handling useless polymeric material in shown in Figure 2 being used to comprises the shell 1 with charging door 2 and discharge port 3.In described shell 1 inside, be provided with the pressurization screw rod 4 and the processing unit 5 that have annular groove in its surface, and described screw rod and described parts are rotatably installed and the sequence alignment setting, and butt joint rigidly mutually.Processing unit 5 is designed at rotatable shaft 6 places five obstruction parts of order setting one by one, described parts 5 are designed to the shape of five

annular ridges

7,8,19,20,21, and be formed with five

annular grooves

9,10,22,23,24 (having the semi-circular transverse cross-section shape), and be formed with the

annular compartment

11,12,25,26,27 between the surface of five inner surfaces that lay respectively at shell 1 and

annular groove

9,10,22,23,24.

Annular groove

9,10,22,23,24 is arranged to its width and limit depth and is reduced towards discharge port with 1.2 coefficient.Between the inner surface of the top of

annular ridge

7,8,19,20,21 and shell, be formed with annular gap 12,14,28,29,30 respectively, the width numerical value in described gap reduces towards discharge port by this way, and promptly the width of any one described annular gap is than the little 1.2 times coefficient of width from the farther adjacent segment of discharge port.Be provided with forward helical groove 15 with inverse direction at the inner surface place of shell 1.This equipment is provided with the device 17 that is used to cool off the device 16 of pressurization screw rod and is used for the cooling processing parts, and described device is designed to be able to co-operating.This equipment also is provided with the device 18 of the shell that is used for cooling off the zone that is provided with pressurization screw rod and processing unit therein.

The equipment operation of handling useless polymeric material in being used to shown in Fig. 1 is as follows:

Constantly polymeric material (in advance the aircraft damaged tire being cut into the piece that size is approximately 15 * 15 * 15mm) is packed into the charging door 2 of shell 1.Institute's material to be processed is made of rubber and the synthetic cable of high strength, and the latter's content is approximately 50wt%.By with liquid coolant (water) thus the device 18 that is delivered into the device 16 that is used for cooling off the pressurization screw rod, is used for the device 17 of cooling processing parts and is used to cool off the shell in the zone that is provided with pressurization screw rod and processing unit therein carries out the cooling of this equipment.The aircraft wheel mole is caught by the helical groove of the pressurization screw rod 4 of rotation, and under cooling condition, carry out compression gradually, flow to annular compartment 11 then, wherein under the effect of extruding force that increases gradually and shear stress, carry out the rapid densification of material and forms integral layer, so owing to the existence of the obstruction parts of the shape that is designed to annular ridge 7 keeps in fact constant compression force in described chamber 11 by this material.This process forms minute crack by the strong heating certainly of this layer with in those tiny areas and finishes, and has the strongest shear stress there.Because reinforcing fibre is a stress raiser, so the micro-crack major part appears at their near surface.Said process has the feature of selection, promptly only realizes shearing force in having those zones of fibre bundle or knot.Identical shear stress also along the fiber of the action direction of shear stress orientation, promptly with the simultaneously vertical fiber of this equipment axis normal with the radius of gyration near appearance.These film micro areas just in time are " weak location ", the strongest rubber and cable stripping wherein occur.When waste materials passes through annular gap 13, the separation of fiber and the decomposition of material in these film micro areas, have been finished.When the described gap, the orientation of cable changes in mode arbitrarily, changes to subsequently by the be provided with selected specific degrees of helical groove 15 at the inner surface place of shell 1.The waste materials of partial crushing is collected in the annular compartment 12 gradually, wherein at shear stress, owing under the effect of the higher temperature that produces of result of heating and sizable pressure, having formed new one deck, appear separating of decomposition that the final stress of material causes and residue cable fiber in this layer.Realized this process in

annular compartment

11 and 12 under relatively low shear stress numerical value, this moment, the fragmentation of cable fiber was difficult to occur, and the fragmentation of rubber only causes forming sizable fragment.Broken material is by annular gap 14 and enter discharge port 3.Then by vibration-selection by winnowing separation method make from discharge port 3 pour out and by particle diameter be 1-8mm rubber powder be difficult to this material that broken synthetic cable fiber constitutes and separate.Resulting product be its rubber content synthetic fibers of being no more than 3-8wt% with and short synthetic fibers content be the rubber powder of 1-3wt%.

Handle in being used to shown in Fig. 2 polymeric material equipment embodiment with shown in Fig. 1 similarly mode operate.In second embodiment, equipment according to the present invention is provided with five annular compartments of a row.The material of the metal wire that this design of this equipment makes it possible to use this equipment to handle the high strength polymeric refuse and promptly has high-load, organic plastics etc., thereby this waste product is transformed into the mixture of crude rubber powder, metal wire sections and fiber or synthetic cable, and the length of the metal wire sections in its average length and the tire fragment in this equipment of threading respectively and the length of synthetic cable fiber are slightly different.What specifically, the charging door 2 by shell 1 constantly was approximately size 20 * 20 * 25mm flows to this equipment by useless truck tyre fragment synthetic and that wire rope is strengthened.Initial these fragments enter annular compartment 11, wherein form layer by these fragments.Under extruding and shearing condition, this layer carries out densification and is heated to 100-120 ℃ temperature certainly, and the obstruction parts that are designed to annular ridge 7 simultaneously prevent to descend rapidly along annular compartment 11 pressure.Rubber and metal wire sections and fiber peel off in " the weak location " of material beginning, specifically, those positions are metal wire sections and fiber positions along the direction orientation of shear stress.The material of handled partial crushing is transported to another chamber gradually from an annular compartment, be accompanied by in each chamber, to form and have the new layer that some different kinds of tyre fragments are arranged by comparing with front layer, so temperature progressively increases (when this equipment is operated, the temperature of liquid coolant and the transporting velocity that enter

cooling device

16,17 and 18 must be so selected, thereby the temperature that makes the processed material in annular compartment is owing to it equals 100-200 ℃ from heating).Carry continuously when passing these annular compartments at material, realize that cable separates fully with rubber, and its decomposition is carried out under relatively low shear stress numerical value and low-energy-consumption rate (50-100kWh/ ton).This process is not accompanied by the fragmentation of line and fiber, and can not produce the strong wear of the inner surface of the surface of rotor 5 and shell 1.The fragment of the tire of Chu Liing is poured out from discharge port 3 like this, thereby obtains the fiber of rubber powder that particle diameter is 0.5-10mm, line segment that length is 3-20mm, synthetic cable that length is 5-20mm and the mixture of the fine hair that formed by broken fiber on a small quantity.Separate with vibration-selection by winnowing by magnetic resulting mixture is divided into each component.At after separating, rubber powder comprises and is no more than the short synthetic fibers of 1-3wt% and is no more than the 0.01-0.2wt% metal.

Durability test in the present device shown in Fig. 2 shows, is that the wearing and tearing of the outer fringe surface of inner surface of outer cover and processing unit are compared with known device and reduced two to five times during the continuous processing of 15% useless truck tyre fragment at its wire rope content.

The equipment that is used to handle useless polymeric material according to the present invention makes the surface isolation of polymer and reinforcing component, and reinforcing component does not have fragmentation or suitably broken, the latter has improved the quality of resulting polymeric material, so and owing to reduced the service life that the wearing and tearing of processing unit and inner surface of outer cover have improved this equipment.Reference numeral table 1-shell 2-charging door 3-discharge port 4-pressurization screw rod 5-processing unit 6-rotatable shaft 7,8-annular ridge 9,10-annular groove 11,12-annular compartment 13, the

device

19,20 of the device 18-cooled enclosure of the device 17-cooling processing parts of the helical groove 16-cooling pressurization screw rod at 15-inner surface of outer cover place, 14-annular gap, 21-

annular ridge

22,23,24-annular groove 25,26,27-annular compartment 28,29, the 30-annular gap

Claims

1. equipment that is used to handle useless polymeric material, it comprises the shell (1) of have charging door (2) and discharge port (3), in described shell (1), be rotatably mounted with pressurization screw rod (4) and processing unit (5), described screw rod (4) and described parts (5) are sequence alignment setting and rigidity butt joint mutually basically, and processing unit (5) is provided with cooling device (17), and/or shell (1) in the band of position of processing unit (5) is provided with cooling device, it is characterized in that, described processing unit (5) is designed to a plurality ofly locate one by one the obstruction parts that order is provided with at rotatable shaft (6), described parts are designed to annular ridge (7,8,19,20,21) shape, and by annular groove (9,10,22,23,24) separate, and form the annular compartment (11 of respective numbers thus, 12,25,26,27), they are at the inner surface and the described annular groove (9 of described shell (1), 10,22,23,24) order is provided with between, at described ridge (7,8,19,20, be formed with annular gap (13,14,28 between the inner surface of top 21) and described shell (1), 29,30), the width in described gap reduces towards discharge port (3), and described groove (9,10,22,23,24) being arranged to its width and/or limit depth reduces towards discharge port (3), in addition, pressurization screw rod (4) is provided with cooling device (16) and/or is provided with cooling device at the shell that is positioned at described screw rod zone.

2. equipment as claimed in claim 1 is characterized in that, described annular ridge (7,8,19,20,21) is designed to rectangle, trapezoidal or triangular cross-section shape.

3. equipment as claimed in claim 1 or 2 is characterized in that, described annular ridge (7,8,19,20,21) is provided with 2-10.

4. as each described equipment among the claim 1-3, it is characterized in that the ratio of the width of the width of annular groove (9) and adjacent annular groove (10) is 1.05-2.0.

5. as each described equipment among the claim 1-4, it is characterized in that the ratio of the limit depth of the limit depth of annular groove (22) and adjacent annular groove (23) is 1.05-2.0.

6. as each described equipment among the claim 1-5, it is characterized in that, from the mean breadth of the nearest described annular groove (10,24) of described discharge port (3) with see that from charging door (2) ratio of the mean breadth of the annular ridge (7,20) adjacent to this groove equals (1.1-2.0): 1.

7. as each described equipment among the claim 1-6, it is characterized in that described annular groove (9,10,22,23,24) is designed to rectangle, trapezoidal, triangle or semi-circular transverse cross-section shape.

8. as each described equipment among the claim 1-7, it is characterized in that, transverse shape be rectangle, trapezoidal, triangle or semicircular in shape vertically and/or inclined groove be arranged on the surface of annular ridge (7,8,19,20,21).

9. as each described equipment among the claim 1-8, it is characterized in that the length summation of described pressurization screw rod (4) and processing unit (5) is 2.0-3.5 with the ratio of the diameter of pressurization screw rod (4).

10. as each described equipment among the claim 1-9, it is characterized in that the ratio of the length of the length of described pressurization screw rod (4) and described processing unit (5) is 1.0-5.0.

11., it is characterized in that the ratio of the width of the width of annular gap (29) and adjacent annular gap (30) equals (1.1-3.0): 1 as each described equipment among the claim 1-10.

12., it is characterized in that transverse shape is the inner surface place that the helical groove (15) of rectangle, trapezoidal, triangle or forward semicircular and/or inverse direction is arranged on shell (1) as each described equipment among the claim 1-11.

13., it is characterized in that the device (17) that is used to cool off the device (16) of pressurization screw rod and be used for the cooling processing parts is designed to work in coordination with or operation separately as each described equipment among the claim 1-12.

14. as each described equipment among the claim 1-13, it is characterized in that, be used for cooling the device of the shell of the band of position of pressurization screw rod (4) and be used for cooling the device of the shell of the band of position of processing unit (5) be designed to can co-operating as the device (18) that is used for cooled enclosure.