CN116811196A

CN116811196A - Plastic master batch processing system

Info

Publication number: CN116811196A
Application number: CN202211484679.7A
Authority: CN
Inventors: 龙春霞; 程超
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-09-29

Abstract

The invention relates to the technical field of plastic master batch production equipment, in particular to a plastic master batch processing system, which comprises a cooling device for cooling a wire material, wherein the cooling device comprises a precooling device and a heat exchange device, the precooling device is used for primarily cooling the wire material extruded from an extruder, the heat exchange device is contacted with the precooled wire material in a cooling water spraying manner and fully absorbs heat of the wire material, the heat exchange device comprises a mounting box, a plurality of rollers I are uniformly and rotatably arranged on the side wall of the mounting box, a spray header connecting pipe is arranged on the top wall of the mounting box, and a cooling water input device is connected on the spray header connecting pipe. According to the invention, the motor is used for driving the mounting box to move upwards to extend the cooling stroke in the vertical direction of the line material, and the spray head is matched to cool the line material in a mode of spraying cooling water, so that the problem of low cooling water heat exchange efficiency and waste of water resources in the traditional cooling water tank is solved.

Description

Plastic master batch processing system

Technical Field

The invention relates to the technical field of plastic master batch production equipment, in particular to a plastic master batch processing system.

Background

The master batch is an aggregate obtained by uniformly loading a dye in an excess amount of several times to several tens times to a resin. The master batch is a granule material prepared by firstly mixing and mixing various required auxiliary agents, fillers and a small amount of carrier resin in the plastic processing and forming process for convenience in operation, and metering, mixing, melting, extruding, granulating and other processing processes through equipment such as an extruder.

In the production process of the plastic master batch, the extruded wire material is required to be cooled and solidified by using cooling equipment, and common cooling equipment is provided with a circulating water tank for cooling and a fan for cooling. In the existing equipment adopting water tank cooling, two common cooling methods are available, namely cooling by a matched water chiller in mass production and cooling by a water changing method in small mass production, and the two common cooling methods are used for controlling the temperature of the water tank to be 40-50 ℃ or even lower so as to achieve the purpose of controlling the quality of products. If the cooling water is not replaced timely, the cooling water for cooling the wire material is heated locally, after a period of time, the situation of continuous wire or uneven cross section occurs in the subsequent granulating process due to poor cooling effect, and when serious, the wire material is possibly adhered to a cutter to influence the product quality and damage mechanical equipment. The water chiller can achieve better cooling effect, but the heat exchange efficiency is still low due to uneven local heated temperature distribution of the cooling water in the water tank, and the method of using the water chiller is not economical in small-batch production, and a large amount of water heated by cooling water is frequently added in a large amount, so that a large amount of water resources are wasted.

Therefore, the plastic master batch processing system is provided, the wire material is enabled to rapidly conduct out heat through sectional cooling, the product quality is ensured, and meanwhile, the resource waste is reduced, so that the aim of reducing the production cost is fulfilled.

Disclosure of Invention

The invention aims to provide a plastic master batch processing system, which is characterized in that a motor is used for driving an installation box to move upwards to extend a cooling stroke in the vertical direction of a wire material, and a spray header is matched to cool the wire material in a mode of spraying cooling water so as to solve the problems in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the utility model provides a plastics masterbatch processing system, includes the cooling device that cools off the wire material, cooling device includes precooling device and heat transfer device, precooling device includes precooling water tank, evenly install a plurality of precooling rollers that mutually support with the wire material in the precooling water tank, precooling water tank carries out preliminary cooling to the wire material that extrudes from the extruder and prevents wire material overheated and lead to wire material adhesion equipment or take place the fracture during processing.

Preferably, the heat exchange device adopts the mode of spraying cooling water to contact with the precooled wire material and fully absorb the heat of the wire material, the heat exchange device comprises an installation box, a plurality of first rollers are installed on the side wall of the installation box through the even rotation of an optical axis threaded rod, a spray header connecting pipe is installed on the top wall of the installation box through a fixed buckle, the spray header connecting pipe adopts a PVC water pipe, the material is light, corrosion resistance is good, mechanical strength is high, manufacturing cost is low simultaneously, cooling water input equipment is connected on the spray header connecting pipe, the cooling water input equipment is a cold water pump connected with a running water pipe, a plurality of spray headers are evenly connected on the spray header connecting pipe through a threaded pipe, the spray headers are commonly directed to the plurality of first rollers, the bottom end of the installation box is provided with a precooling water tank, cooling water sprayed out by the spray headers flows into the precooling water tank, the cooling water which is not completely exchanges heat is recycled, the cooling water which is improved when the cooling water is replaced by the precooling water tank is realized, compared with the existing cooling water cooling mode of cooling the wire material in the water tank, the cooling water is filled with the cooling water tank, the cooling water sprayed by the cooling water is filled with the cooling water tank, the cooling water is in the wire material, the precooling water tank is connected with the running water tank, and the cooling water tank is in the water tank, and the water tank is in the heat exchange with the wire material, and the water tank is the water tank, and has the greatest heat exchange efficiency, and the wire material.

Preferably, one end of the precooling water tank far away from the extruder is connected with a cooling water tank, the cooling water tank ensures complete cooling of the wire materials for guaranteeing the effect, the cooling water tank and the precooling water tank are 304 stainless steel square water tanks, a plurality of rollers II matched with the wire materials are uniformly arranged in the cooling water tank, the rollers II and the precooling rollers are made of plastic materials and are arranged on a movable roller support through optical axis screws and nuts, the cooling water tank and the precooling water tank are connected with water recovery equipment, the water recovery equipment is a condensate water recoverer, the cooling water tank is also connected with a cooling water pump, overheated cooling water in the cooling water tank and the precooling water tank is collected through the condensate water recoverer, and can be output by the cooling water pump after being cooled, compared with the existing method for injecting a large amount of cooling water to achieve the cooling effect, and the condensate water recoverer can recycle water resources to the greatest extent.

The cooling water input equipment of the scheme is not the only choice, and the method of connecting the spray header with the cold water pump and then connecting the tap water pipe can be replaced by connecting the spray header with the cold water pump and then connecting the spray header with the condensate water recoverer, so that the cooled cooling water of the condensate water recoverer is reused, and the cooling effect is not as good as that of the former but is suitable for saving the water resource cost in small-batch production.

Preferably, the mounting box comprises base box, middle section box and top box, roller one is including rotating the foundation roller of installing on the base box and rotating the top roller of installing on the top box, and the staggered setting of foundation roller and top roller makes the wire material finally present continuous S type, the top movable mounting of base box has the middle section box, the top movable mounting of middle section box has the top box, install servo motor through the screw on the base box inner wall, install the gear on the motor output shaft, there is the rack through screw fixed mounting on the inside wall of top box, and the bottom and the gear intermeshing of rack, the rack stopper that is limited the rack and can only reciprocate through screw fixed mounting on the base box drives gear through the motor, and rack cooperation gear transmission is simultaneously because of rack top and top box inner wall fixed connection to drive middle section box and top box and remove in the vertical direction and realize oscilaltion, thereby pull open the top roller on the top box and the base box and realize the distance of extension line material refrigerated purpose when compared with traditional cooling water tank and take up an area more little.

The transmission unit of this scheme is not the only choice, can also use turbine worm mechanism to carry out the transmission, utilizes the self-locking nature of this mechanism, prevents that top box from being greater than servo motor's self-locking frictional force and taking place to drop because of gravity after being lifted by servo motor, also can protect servo motor simultaneously.

Preferably, every all be connected with pressure sensing device on backing roll and the top roller, pressure sensing device is including seting up a plurality of movable grooves on the inside lateral wall of base box or top box, every equal fixed mounting has the spring on the diapire of movable groove inboard, a plurality of equal slidable mounting has the installation piece in the movable groove, and a plurality of the through-hole has been seted up on the installation piece, can pass installation pole and fixed mounting on the installation piece and the installation pole is the optical axis screw rod, pass the installation pole behind the roller one with the nut cooperation rotation install on the installation pole, a plurality of install the downward pressure sensor of inductive head in the installation piece, a plurality of pressure sensor and the inside diapire fixed mounting of installation piece, and the top of spring all pastes tightly in pressure sensor's bottom, pressure sensor all electric connection is on the motor, works as the installation box upwards moves, and around the line material on its top roller and the backing roll when the distance increases between the backing roll, can drive installation piece and installation pole and the removal in the movable groove in the line tensioning process, and install the installation pole with nut cooperation rotation, a plurality of install the pressure sensor in the installation piece after the installation piece is passed through roller, and the pressure sensor's the pressure sensor that the pressure sensor is down set for the pressure sensor is reached the inside the pressure sensor, the pressure sensor reaches the value of the pressure sensor that the setting up, and the value is more visual, and the artificial quality of quality is judged promptly after the pressure sensor has reached.

Preferably, the precooling water tank, the mounting box and the cold water tank top fixed mounting have the cover case, install respectively at precooling water tank and cold water tank edge through the screw nut at the both ends of cover case, line material entry and line material export have been seted up respectively at the both ends of cover case, but the side door of upset is installed to the cover case lateral wall, the side door prevents personnel injury when closing the door through hinge and hydraulic stem cooperation use, exhaust equipment is installed to line material entry and mounting box top, exhaust equipment comprises pipeline fan and active carbon exhaust treatment equipment, and pipeline fan installs at cover case roof inner wall, be connected with active carbon exhaust treatment equipment on the pipeline fan, harmful gas passes through from the active carbon layer in the exhaust treatment equipment after collecting through the pipeline fan, and outside the last exhaust atmosphere, through installing cover case and exhaust system additional and prevent that the harmful gas that the line material produced when cooling from being inhaled by the human body from causing the injury to peripheral personnel health.

Preferably, the precooling roller and the second roller are both connected with a movable roller support, the movable roller support is fixedly mounted through a screw and a hinge, the hinge is fixedly mounted through the screw and a mounting seat, the movable roller support, the hinge, the mounting seat and the screw are made of 304 stainless steel, the strength is prevented from being influenced by corrosion caused by long-time contact water and air, the connection part of the mounting seat is connected to a precooling water tank and a cooling water tank through threaded rods, the horizontal movement of the edge of the water tank can be realized under the condition of incomplete locking, and an operator can conveniently adjust the position of the movable roller support at any time to achieve the desired effect.

Preferably, each spray header is symmetrically connected with two rectangular nozzles, the width of each rectangular nozzle is the same as the length of the roller I, the two rectangular nozzles are respectively positioned on two sides of the roller I, the water storage area of the spray header is formed by gradually reducing the inner volume of the conical structure from outside to inside, the water pressure of a water outlet caused by the balance distance of the method for reducing the volume is inconsistent, the overall sprayed water flow of each rectangular nozzle is close, and compared with the cylindrical water storage area, one end far away from a spray head connecting pipe possibly causes the water flow of each rectangular nozzle with smaller water pressure due to the longer distance, so that the overall cooling effect of the lower wire material is affected.

Preferably, the inclination angle of the wire between the bottom roller and the top roller is alpha, and alpha should be greater than or equal to 80 degrees and less than or equal to 85 degrees, the angle alpha of the wire cannot be greater than 90 degrees, when the wire is too vertical to the ground, the wire is easy to break due to too large tensile force, when the wire is less than 80 degrees, cooling water cannot flow down completely along the wire, the cooling effect is affected by falling due to the influence of gravity in the middle, the inclination angle of the wire located under the rectangular nozzle is the same as the inclination angle of the rectangular nozzle, so that the cooling water is led to the precooling water tank by using the wire as much as possible, the cooling stroke of the wire between the top roller and the bottom roller is increased to the greatest extent, and the wire is fully cooled.

Compared with the prior art, the invention has the beneficial effects that:

1. the lifting function can be realized through the transmission structure of the motor-driven gear rack, the wire material cooling stroke is greatly increased in limited space in a mode of combining the top roller and the bottom roller on the mounting box, the whole equipment is more compact, small and medium-sized factories with smaller area can obtain more space-optimized equipment placement positions, large-sized factories can be additionally provided with more equipment to reduce space waste and improve production efficiency, the problem of insufficient heat exchange of cooling water in a water tank is solved through a mode of spraying cooling water, water resources are saved while heat exchange efficiency is improved, compared with the existing mode of cooling wire material bubbles in the water tank, the sprayed cooling water can wrap the wire material to drain into a precooling water tank along with the wire material, the water used by the method is less and the water contacted with the wire material can exchange heat to the greatest extent, and the problem of low local heat exchange efficiency of the cooling water of the wire material bubbles in the water tank is solved.

2. The pressure sensing device is added to automatically detect and identify the tensile force born by the wire materials made of different materials in the production process, so that the possibility of breakage of the wire materials caused by overlarge tensile force in the wire material stroke adjustment process is effectively prevented, the mode of manually judging the tensile force of the wire materials through experience is eliminated, and the production efficiency is improved.

3. Through adding cover box and exhaust system, get up the harmful gas that produces during production, utilize exhaust fan cooperation active carbon exhaust treatment equipment to adsorb harmful gas in the active carbon granule again, reduced harmful gas to peripheral operating personnel's health harm.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a bottom view of the enclosure of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at C in accordance with the present invention;

FIG. 4 is a schematic view of the structure of the invention after removing the cover box;

FIG. 5 is a front cross-sectional view of a showerhead of the present invention;

FIG. 6 is a cross-sectional view taken at A-A of FIG. 5 in accordance with the present invention;

FIG. 7 is a front view of a pressure sensing device of the present invention;

FIG. 8 is a cross-sectional view taken at B-B of FIG. 7 in accordance with the present invention;

FIG. 9 is a front view of the pre-cooling tank and the cold water tank of the present invention;

FIG. 10 is a cross-sectional view taken along line E-E of FIG. 9 in accordance with the present invention;

FIG. 11 is a front view of a movable roller mount of the present invention;

FIG. 12 is a front view of the mounting box of the present invention;

FIG. 13 is a cross-sectional view taken at D-D of FIG. 12 in accordance with the present invention;

FIG. 14 is an enlarged view of a portion of the invention at F in FIG. 13;

fig. 15 is a diagram of the correct strand angle for the present invention.

In the figure: 1. a cover box; 2. an exhaust device; 3. a side door; 4. a pre-cooling water tank; 5. a cold water tank; 6. a second roller; 7. precooling roller; 8. a roller I; 801. a bottom roller; 802. a top roller; 9. a movable roller bracket; 10. a hinge; 11. a mounting base; 12. a mounting rod; 13. a mounting block; 14. a spring; 15. a movable groove; 16. a mounting box; 1601. a base box; 1602. a middle section box body; 1603. a top end box; 17. a motor; 18. a gear; 19. a rack; 20. a rack limiting block; 21. a spray header.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 15, the invention provides a plastic master batch processing system for cooling a wire material with a temperature greater than 160 °, which comprises the following technical scheme:

the casing of the mounting box 16 is of a three-layer structure and consists of a base box 1601, a middle box 1602 and a top box 1603, the top end of the base box 1601 is movably provided with the middle box 1602, the top end of the middle box 1602 is movably provided with the top box 1603, the whole body is made of corrosion-resistant aluminum alloy materials, the thickness of the plate needs to be 1.5mm-2mm to ensure the whole strength, the pressure sensing device comprises 9 movable grooves 15 arranged on the inner side wall of the base box 1601 or the top box 1603, the bottom wall of the inner side of each movable groove 15 is fixedly provided with a spring 14, the inner part of each 9 movable grooves 15 is provided with a mounting block 13 in a sliding manner, the 9 mounting blocks 13 are provided with through holes, the mounting rod 12 can penetrate through and be fixedly mounted on the mounting blocks 13, the mounting rod 12 is an optical axis screw rod, the mounting rod 12 penetrates through the roller I8 and then is matched with a nut to rotate and is mounted on the mounting rod 12, the top roller 802 and the bottom roller 801 are respectively 4 top rollers 802 arranged on the top end box 1603 and 5 bottom rollers 801 arranged on the base box 1601, the top roller 802 and the bottom roller 801 are arranged through screw nuts, the bottom rollers 801 and the top rollers 802 are arranged in a staggered way, a pressure sensor with a downward induction head is arranged in 9 mounting blocks 13, the 9 pressure sensors are fixedly arranged with the inner bottom wall of the mounting blocks 13, the top ends of springs 14 are respectively attached to the bottom ends of the pressure sensors, the pressure sensors are electrically connected to a motor 17, the top end box 1603 is provided with 4 spray head 21 connecting pipes, one end of each spray head 21 connecting pipe is connected with a cold water pump, the other end of each spray head 21 connecting pipe is connected with 4 spray heads 21, the motor 17 is arranged on the inner wall of the base box 1601, a gear 18 is arranged on the output shaft of the motor 17, a rack 19 is fixedly arranged on the inner side wall of the top end box 1603, the bottom ends of the rack 19 are mutually meshed with the gear 18, the utility model provides a cold water treatment device, including the base box 1601, the rack limiting block 20 that is limited rack 19 and only can reciprocate is fixed mounting on the base box 1601, install precooling water tank 4 under top roller 802 and the bottom roller 801, evenly install 1 precooling roller 7 that mutually support with the line material in the precooling water tank 4, the one end that precooling water tank 4 kept away from the extruder is connected with cold water tank 5, evenly install 2 roller two 6 that mutually support with the line material in the cold water tank 5, precooling water tank 4 and cold water tank 5 all are connected with the condensate water recoverer, and cold water tank 5 is also connected with the cold water pump, precooling water tank 4, install case 16 and cold water tank 5 top fixed mounting have cover case 1, the both ends at precooling water tank 4 and cold water tank 5 edge respectively of cover case 1 are provided with line material entry and line material export respectively, cover case 1 lateral wall installs side door 3 that can overturn, the line material entry is installed with install the pipe fan above the install case 16, the pipe fan is installed at cover case 1 top inner wall, pipe fan and be connected with active carbon exhaust gas treatment device and is used for absorbing the harmful gas that produces when the line material cools.

Before starting to work, the precooling water tank 4 and the cooling water tank 5 are filled with cooling water, a side door 3 of the cover box 1 is opened to operate a lead, a movable roller support 9 in the precooling water tank 4 and the cooling water tank 5 is firstly opened and the height of the installation box 16 is reduced, after the wire materials are produced by the extruder, the wire materials pass through the cooling water of the precooling water tank 4 to finish precooling, then the wire materials pass through a bottom roller 801 and a top roller 802 of the installation box 16 and are wound up and down, after the wire winding is finished, the wire materials pass through the cooling water of the cooling water tank 5 and are connected to a next station, after the lead is finished, the movable roller support 9 in the precooling water tank 4 and the cooling water tank 5 is closed, the side door 3 is closed after the position between the wire materials is adjusted, and the wire materials are kept in a loose state during the lead so that the subsequent operation is convenient; when the device is started to work, the power supply and exhaust device 2 is started to run, the motor 17 is operated to drive the gear 18 and the rack 19 to enable the box body 1603 at the top end of the installation box 16 to drive the top roller 802 to gradually rise, the wire material is gradually pulled up along with the top roller 802, the lifting is stopped after the set pressure is detected by the pressure sensing device, and the cold water pump starts to work and the spray header 21 starts to spray cooling water; the design ensures that the wire is vertical to the ground as much as possible while the wire is lifted by the mounting box 16, greatly improves the cooling stroke in the vertical direction, reduces the water consumption by gravity through the cooling water sprayed by the spray header 21, fully exchanges heat with the wire to improve the heat exchange efficiency, and flows into a primary cooling tank along with the surface of the wire to recycle the cooling water which is not completely exchanged, and discharges the cooling water which is completely exchanged by a water outlet under the water tank close to the extruder, and then the condensate recoverer recovers the overheated cooling water, and the cooling water is supplied to the spray header 21 and the cooling water tank 5 by the cooling water pump again after cooling treatment; the wire can not be adjusted to be completely vertical, and the wire can be pulled apart due to excessive vertical pulling force when the mounting box 16 is lifted, so that the water outlet of the spray header 21 is outwards offset by 5 degrees from the vertical angle of the ground to match the offset angle of the wire, and the wire at the vertical distance can be contacted with cooling water; the heat exchange efficiency is improved, the occupied area of a wire material cooling area in a workshop is shortened, and the equipment is more compact, so that the space utilization rate is improved.

In a second embodiment, referring to fig. 1 to 15, the present invention provides a plastic master batch processing system for cooling a wire material with a temperature less than 160 °, which comprises the following technical scheme:

in the second embodiment, the number of top rollers 802 is 3, the number of bottom rollers 801 is 4, and the number of spray heads 21 is 3, unlike the first embodiment, when the temperature of the wire is lower than 160 °, the wire is lower, the contact time between the wire and cooling water can be reduced, by setting the number of top rollers 802 to 3, the number of bottom rollers 801 is 4, the cooling stroke of the wire can be reduced, the contact time between the wire and cooling water can be reduced, the water consumption can be reduced, and the cost can be reduced.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a plastics masterbatch processing system, includes the cooling device that carries out refrigerated wire material, its characterized in that: the cooling device comprises a precooling device and a heat exchange device, wherein the precooling device is used for carrying out preliminary cooling on the wire material extruded from the extruder, and the heat exchange device is contacted with the precooled wire material in a cooling water spraying mode and fully absorbs heat of the wire material.

2. A plastic masterbatch processing system as defined in claim 1, wherein: the heat exchange device comprises a mounting box (16), a plurality of first rollers (8) are uniformly rotated on the side wall of the mounting box (16), a spray header connecting pipe is mounted on the top wall of the mounting box (16), cooling water input equipment is connected to the spray header connecting pipe, a plurality of spray headers (21) are uniformly connected to the spray header connecting pipe, the spray headers (21) point to the plurality of first rollers (8) together, and water receiving equipment is arranged at the bottom end of the mounting box (16).

3. A plastic masterbatch processing system as defined in claim 2, wherein: the precooling device comprises a precooling water tank (4), the precooling water tank (4) is located between the extruder and the installation box (16), the precooling water tank (4) is located under the first roller (8), a plurality of precooling rollers (7) matched with the wire materials are uniformly installed in the precooling water tank (4), and water recovery equipment is connected to the precooling water tank (4).

4. A plastic masterbatch processing system as defined in claim 3, wherein: one end of the precooling water tank (4) far away from the extruder is connected with a cooling water tank (5), a plurality of rollers II (6) matched with the wire materials are uniformly arranged in the cooling water tank (5), and the cooling water tank (5) is connected with a cooling water input device and a water recovery device.

5. A plastic masterbatch processing system as defined in claim 2, wherein: install bin (16) by base box (1601), middle section box (1602) and top box (1603) are constituteed, roller one (8) is including rotating foundation roller (801) of installing on base box (1601) and rotate top roller (802) of installing on top box (1603), and foundation roller (801) and top roller (802) crisscross setting, the top movable mounting of base box (1601) has middle section box (1602), the top movable mounting of middle section box (1602) has top box (1603), install motor (17) on base box (1601) inner wall, install gear (18) on motor (17) output shaft, fixed mounting has rack (19) on the inside wall of top box (1603), and the bottom and gear (18) intermeshing of rack (19), fixed mounting has on base box (1601) and limits rack (20) that can only reciprocate, every on foundation roller (801) and top roller (1601) all are connected with a plurality of pressure sensing devices.

6. The plastic masterbatch processing system of claim 5, wherein: the pressure sensing device comprises a plurality of movable grooves (15) formed in the inner side wall of a base box body (1601) or a top end box body (1603), springs (14) are fixedly installed on the bottom wall of the inner side of each movable groove (15), installation blocks (13) are slidably installed in the movable grooves (15), pressure sensors are fixedly installed on the bottom wall of each installation block (13), the lower ends of the springs (14) are connected with the bottom wall of each movable groove (15), the top ends of the springs (14) are tightly attached to the bottom ends of the pressure sensors, the pressure sensors are electrically connected to a motor (17), installation rods (12) are fixedly installed on the installation blocks (13), and a bottom roller (801) and a top roller (802) are evenly and rotatably installed on the installation rods (12).

7. The plastic masterbatch processing system of claim 4, wherein: the utility model discloses a precooling water tank, including precooling water tank (4), mounting box (16) and cold water tank (5), all fixed mounting jointly has cover case (1) above precooling water tank (4), mounting box (16) and cold water tank (5), install respectively at precooling water tank (4) and cold water tank (5) edge in the both ends of cover case (1), both ends of cover case (1) are provided with line material entry and line material export respectively, side door (3) that can overturn are installed to cover case (1) lateral wall, exhaust equipment (2) are installed to line material entry and mounting box (16) top, exhaust equipment (2) are installed at cover case (1) top inner wall, be connected with exhaust-gas treatment equipment on exhaust equipment (2).

8. The plastic masterbatch processing system of claim 4, wherein: the pre-cooling roller (7) and the roller II (6) are both connected with a movable roller support (9), one end of the movable roller support (9) is connected with a mounting seat (11), the movable roller support (9) is connected with the mounting seat (11) through a hinge (10), and the mounting seat (11) is connected to the pre-cooling water tank (4) and the cooling water tank (5) through screws.

9. The plastic masterbatch processing system of claim 5, wherein: two rectangular nozzles are symmetrically connected to each spray header (21), the width of each rectangular nozzle is the same as the length of the roller I (8), the two rectangular nozzles are respectively located at two sides of the roller I (8), and the water storage area of the spray header (21) is of a conical structure, and the inner volume of the spray header is gradually reduced from outside to inside.

10. A plastic masterbatch processing system as defined in claim 9, wherein: the inclination angle of the wire between the adjacent bottom roller (801) and top roller (802) is a, a is between 80 degrees and 85 degrees, and the inclination angle of the wire right below the rectangular nozzle is the same as that of the rectangular nozzle.