CN210139525U - Production line for wet-method refining of powdered rubber - Google Patents
Production line for wet-method refining of powdered rubber Download PDFInfo
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- CN210139525U CN210139525U CN201920609737.1U CN201920609737U CN210139525U CN 210139525 U CN210139525 U CN 210139525U CN 201920609737 U CN201920609737 U CN 201920609737U CN 210139525 U CN210139525 U CN 210139525U
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- 238000010074 rubber mixing Methods 0.000 claims abstract description 32
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Abstract
The utility model relates to a liquid rubber preparation powder rubber technical field, concretely relates to production line for wet process refining powder rubber, including the wet process rubber mixing system that is used for mixing liquid raw materials dispersion into thick liquids, a spray drying system that is used for carrying out the atomizing blow-off drying with the thick liquids that wet process rubber mixing system supplied with into rubber particles, a suspension drying system that is used for carrying out the suspension drying and collects the subsidence with the rubber particles of spray drying system, a cooling separation system that is used for cooling the rubber particles that the suspension drying system subsides and separating into the rubber powder, a collection dust pelletizing system that is used for collecting the rubber powder of cooling separation system output and removes dust to production line waste gas; compared with the prior art, the method solves the problems that products are easy to scorch, insufficient in drying, easy to agglomerate and form blocks when being put into a warehouse for packaging products and the like in the production of powder formula rubber or non-formula rubber, improves the production efficiency and improves the product quality.
Description
Technical Field
The utility model relates to a liquid rubber preparation powdered rubber technical field, concretely relates to production line for wet process refining powdered rubber.
Background
In the technical field of liquid rubber preparation, in the prior art, rubber liquid is sprayed into mist, and then the moisture and the solvent in the mist drops are evaporated by contacting with hot air, so that rubber powder rubber is prepared. However, due to various characteristics of the rubber and the respective short plates of the spray drying tower, the following problems occur when the powder rubber is prepared using the spray drying tower: firstly, the rubber is easily gelatinized and even scorched at high temperature due to the high molecular organic material, and if the spray drying tower is used for drying at low temperature, the residual moisture of the rubber particles is too high due to too short drying time, so that the quality requirement cannot be met. Secondly, the lower part of the spray drying tower is of a cone hopper structure, if rubber particles fall downwards along with the air flow after being heated from the upper straight cylinder, the rubber particles can partially impact the cone hopper at the lower part, and because the rubber particles have viscosity at a certain temperature, the rubber particles are easily adhered to the cone wall for lamination, the normal and continuous operation of the spray drying tower is influenced, and the product quality is influenced after the rubber particles are caked and peeled off. Thirdly, rubber particles discharged from the spray drying tower cannot be prevented from being agglomerated due to certain heat whether stored in a powder bin or put into a packaging bag. Fourthly, the dried powder rubber is only a raw material, and the product is prepared and further formula mixing is needed, so that the dried powder rubber can enter a die cavity to be vulcanized into a rubber product, and a plurality of powder ingredients can generate serious dust during mixing, seriously pollute the environment, consume a large amount of manpower and material resources and even generate safety accidents.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the not enough among the prior art, and provide a production line and wet process refining powdered rubber's preparation method for wet process refining powdered rubber that work efficiency is high, adopt this production line and wet process refining powdered rubber's preparation method for wet process refining powdered rubber can solve the low, big problem of pollution of rubber preparation work efficiency.
The purpose of the utility model is realized through the following technical scheme: the application provides a production line for wet-process refining of powdered rubber, which comprises a wet-process rubber mixing system, a spray drying system, a suspension drying system, a cooling and separating system and a collecting and dedusting system, wherein the wet-process rubber mixing system is sequentially communicated and used for dispersing and mixing liquid raw materials into slurry, the spray drying system is used for atomizing and blowing off the slurry supplied by the wet-process rubber mixing system and drying the slurry into rubber particles, the suspension drying system is used for performing suspension drying on the rubber particles of the spray drying system and collecting and settling the rubber particles, the cooling and separating system is used for cooling and separating the rubber particles settled by the suspension drying system into rubber powder, and the collecting and dedusting system is used for collecting the rubber powder produced by the cooling; the production line also comprises a heat supply temperature control system which respectively provides heat sources for the spray drying system and the suspension drying system.
The spray drying system comprises a spray drying tower, wherein the lower part of the spray drying tower is a conical hopper part, at least one circle of air injection hole groups are arranged at intervals on the conical hopper part from top to bottom, and each air injection hole group comprises a plurality of annular-array air injection holes; the outside of awl fill portion is provided with the blast shell, forms the air intermediate layer between the inner wall of blast shell and the awl fill portion outer wall.
The suspension drying system comprises a suspension drying furnace, and the feed end of the suspension drying furnace is communicated with a cone hopper part of the spray drying tower; the suspension drying furnace is sequentially divided into a plurality of heating zones along the advancing direction of the rubber particles, and the heating temperature of each heating zone is controlled independently; each heating area is provided with a drying nozzle inclined towards the discharging direction.
The heating temperature control system comprises a hot blast stove, and at least three heating pipes are communicated with the hot blast stove; the top in the spray drying tower is provided with an air distributor, and a first heat supply pipe is communicated with the air distributor and supplies hot air; the second heat supply pipe is communicated with the air blowing shell and supplies hot air for the air interlayer; the third heat supply pipeline is communicated with each heating zone of the suspension drying furnace and supplies hot air.
Wherein, each heating pipe is provided with a cold air regulating valve.
The discharge end of the suspension drying furnace is communicated with a settling chamber, the bottom end part of the settling chamber is communicated with the cooling separation system, and the top end part of the settling chamber is communicated with the collection and dust removal system through a waste gas pipeline.
The cooling and separating system comprises an air cooler, a cold exchanger, a cold air pipeline and a cyclone separator, wherein the air cooler is connected with the cold exchanger, the cold exchanger is connected with one end of the cold air pipeline and supplies cold air to the cold air pipeline, the other end of the cold air pipeline is communicated with the cyclone separator, and the cyclone separator is communicated with the collecting and dedusting system; the bottom end part of the settling chamber is communicated with the air inlet end of the cold air pipeline.
The top end of the cyclone separator is communicated with a cooling fan through a pipeline, and the exhaust end of the cooling fan is communicated with a waste gas pipeline.
The collecting and dedusting system comprises a bag-type dust collector, a storage bin and an exhaust fan, the bag-type dust collector is communicated with a waste gas pipeline, the storage bin is communicated with a discharge port of the cyclone separator, and the exhaust fan is communicated with the bag-type dust collector and exhausts the filtered waste gas.
The utility model has the advantages that: according to the production process of the production line for the wet-process refined powder rubber, liquid rubber liquid, filling reinforcing powder and auxiliary reagents are firstly put into a wet-process rubber mixing system according to a certain proportion, and liquid rubber is circularly mixed and refined in the wet-process rubber mixing system; conveying the prepared liquid colloid to a spray drying system, carrying out atomization drying on the liquid colloid by the spray drying system to prepare rubber particles, and conveying the prepared and dried rubber particles to a suspension drying system to carry out secondary drying of suspension drying to obtain dried rubber particles; and then, the dried rubber particles are conveyed to a cooling and separating system, the cooling and separating system cools and separates the dried rubber particles into rubber powder, and finally the rubber powder is conveyed to a collecting and dedusting system for storage, and the collecting and dedusting system collects and filters the waste gas of the whole production line and finally exhausts the air.
Drawings
The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.
FIG. 1 is a schematic structural diagram of a production line for hydrometallurgical production of powdered rubber according to the present invention.
FIG. 2 is a schematic structural diagram of a spray drying system and a suspension drying system of a production line for hydrometallurgical powdered rubber of the present invention.
FIG. 3 is a schematic structural view of a temperature control system of a production line for wet-refining powdered rubber of the present invention.
FIG. 4 is a schematic structural view of a cooling and separating system and a dust collecting and removing system of a production line for wet-refining powdered rubber of the present invention.
FIG. 5 is a schematic structural view of a production line for hydrometallurgical production of powdered rubber according to the present invention.
FIG. 6 is a cross-sectional view of an ultrasonic vortex rubber mixing machine of a production line for wet-refining powdered rubber of the present invention.
Fig. 7 is a cross-sectional view taken at a-a in fig. 2.
FIG. 8 is a sectional view of a twin-shaft dispersing machine of a production line for wet refining of powdered rubber according to the present invention.
Fig. 9 is a cross-sectional view at B-B in fig. 4.
Fig. 10 is a view looking down at C in fig. 5.
Reference numerals: the device comprises a slurry working cylinder 200, a plunger pump 300, a heat supply temperature control system 400, a hot blast stove 401, a first heat supply pipe 402, a second heat supply pipe 403, a third heat supply pipe 404, a cold air adjusting valve 405, a spray drying system 500, a spray drying tower 501, an atomizing nozzle 502, an air distributor 503, an air jet hole 504, a blast shell 50, an air interlayer 506, a suspension drying system 600, a suspension drying furnace 601, a heating zone 602, a heating zone 603, a heating zone 604, a drying nozzle 605, a settling chamber 606, an exhaust gas pipeline 607, a cooling separation system 700, an air cooler 701, a cold exchanger 702, a cold air pipeline 703, a cyclone separator 704, a collection and dust removal system 800, a cloth bag 801, a storage bin 802, an exhaust fan 803, a cooling fan 804, a wet rubber mixing system 100, a circulating pump 1, an ultrasonic vortex rubber mixer 2, a double-shaft disperser 3, a feeding port 21, a discharging port 22, a feeding port, The device comprises a rotary drum 42, a transmission motor 43, an annular lining plate 44, an impact blade 45, an ultrasonic vibrator 46, a slurry collecting groove 47, a first transmission shaft 51, a second transmission shaft 52, a shell 53, a dispersion disc 6 and a flow deflector 61.
Detailed Description
The invention will be further described with reference to the following examples.
It should be noted that the production line for wet-process refined powdered rubber of the present application can be used for preparing heat-sensitive materials besides refined powdered rubber, for example, in the field requiring low-temperature drying of traditional Chinese medicine, and the production line of the present embodiment can be adopted.
The utility model discloses a concrete implementation mode of production line for wet process refining powdered rubber, as shown in fig. 1, including the wet process rubber mixing system 100 that is used for mixing the liquid raw materials dispersion into the thick liquids that communicates the setting in proper order, a spray drying system 500 that is used for carrying out the atomizing blow-off drying into rubber particles with the thick liquids that wet process rubber mixing system 100 supplied, a suspension drying system 600 that is used for carrying out the suspension drying and collecting the subsidence with the rubber particles of spray drying system 500, a cooling and separating system 700 that is used for carrying out the cooling and separating system 600 the subsidence rubber particles into rubber powder, a collection dust pelletizing system 800 that is used for collecting the rubber powder of cooling and separating system 700 output and removes dust to production line waste gas; the production line further comprises a heat supply and temperature control system 400 for providing heat sources for the spray drying system 500 and the suspension drying system 600, respectively.
Referring to fig. 1, in the present embodiment, the production line further includes a slurry working cylinder 200 and a plunger pump 300, the wet rubber mixing system 100 is communicated with the slurry working cylinder 200, and the slurry working cylinder 200 is mainly used for storing slurry and stirring the slurry, so as to prevent the slurry from agglomerating or solidifying and ensure normal operation of the production line. The discharge end of the slurry working cylinder 200 is communicated with the plunger pump 300, and with reference to fig. 2, the discharge end of the plunger pump 300 is communicated with the atomizing nozzle 502 of the spray drying tower 501 in the spray drying system 500, and the plunger pump 300 is mainly configured to provide a power for the slurry, so that the slurry can obtain the best atomizing effect when coming out from the atomizing nozzle 502. The working process that wet-process mixing system 100 carried to spray drying system 500, and the thick liquids that wet-process mixing system 100 was mixed and is made are carried to thick liquids working cylinder 200 in through ordinary power pump and are stored, and during the storage period, be provided with the rabbling mechanism in the thick liquids working cylinder 200 and continue stirring the thick liquids, and the production line during operation, plunger pump 300 absorbs the thick liquids in the thick liquids working cylinder 200 and promotes to the atomizing nozzle 502 of spray drying tower 501 to make thick liquids atomize in spray drying tower 501.
Referring to fig. 2, the spray drying system 500 includes a spray drying tower 501 and a plurality of atomizing nozzles 502 arranged at intervals in a ring shape and inserted into the spray drying tower 501, wherein each atomizing nozzle 502 is disposed in communication with the plunger pump 300. A wind distributor 503 is installed at the top inside the spray drying tower 501. As an improvement, the lower part of the spray drying tower 501 is a conical hopper part, at least one circle of air injection hole groups are arranged at intervals on the conical hopper part from top to bottom, and each air injection hole group comprises a plurality of annular-array air injection holes 504; an air blowing shell 505 is arranged outside the cone part, the air blowing shell 505 is hermetically surrounded and welded on the outer surface of the cone part, and an air interlayer 506 is formed between the inner wall of the air blowing shell 505 and the outer wall of the cone part (the outer wall of the spray drying tower 501). In practical application, the air interlayer 506 and the air distributor 503 are continuously supplied with hot air, and the hot air supplied from the air distributor 503 to the spray drying tower 501 is mainly used for drying the slurry sprayed by the atomizing nozzle 502. And the hot gas in the air interlayer 506 will enter the atomizing and drying tower 501 through the air jet holes 504 arranged on the atomizing and drying tower 501, hot air is provided for the drying process, moreover, the air jet holes 504 are uniformly distributed at the conical hopper part of the atomizing and drying tower 501, the slurry can become solid rubber particles after being dried, when the rubber particles fall to the inner bottom end of the atomizing and drying tower 501, the hot air sprayed by the air jet holes 504 blows the rubber particles towards the central position until the rubber particles fall into the outlet of the atomizing and drying tower 501, the air jet holes 504 are annularly sprayed one by one through a plurality of groups of annular arrays, the rubber particles fall in a step shape and enter the suspension drying system 600 under the condition that the rubber particles cannot contact the inner wall of the atomizing and drying tower 501, and the problem that the rubber particles are attached to the inner wall of the atomizing and drying tower 501 is avoided.
Referring to fig. 2, the suspension drying system 600 includes a suspension drying furnace 601, and a feeding end of the suspension drying furnace 601 is communicated with a conical hopper portion of the spray drying tower 501. The suspension drying furnace 601 is sequentially divided into a plurality of heating zones 602, 603, and 604 in the rubber particle traveling direction, each of the heating zones 602, 603, and 604 is provided with a drying nozzle 605 inclined toward the discharging direction, and the heating temperatures of the heating zone 602, the heating zone 603, and the heating zone 604 are controlled independently of each other. Specifically, the drying nozzles 605 in each heating zone are communicated and share one air supply mechanism, the hot air obtained by each heating zone is provided by the heat supply temperature control system 400, the heat supply temperature control system 400 can be respectively communicated with the heating zone 602, the heating zone 603 and the heating zone 604 through three mutually unrelated pipelines, so as to supply hot air with different temperatures, or the heating zone 602, the heating zone 603 and the heating zone 604 can share one pipeline to be communicated with the heat supply temperature control system 400, and the normal temperature air flow introduced into the heating zone 602, the heating zone 603 and the heating zone 604 is different through the adjustment of air valves in the air supply mechanisms of the respective heating zones, so that the temperatures of the hot air sprayed from the heating zone 602, the heating zone 603 and the heating zone 604 are different, so that the heating temperatures of the respective heating zones are independently controlled, and the rubber preparation method is suitable for different types of rubber, the control is convenient and the adjustment is rapid. Preferably, the drying temperature of the heating zone 602, the heating zone 603, and the heating zone 604 is decreased in the advancing direction of the rubber particles. The discharge end of the suspension drying furnace 601 is communicated with a settling chamber 606, the upper end and the lower end of the settling chamber 606 are both arranged in a conical shape, the bottom end of the settling chamber 606 is communicated with the cooling and separating system 700, and the top end of the settling chamber 606 is communicated with the collection and dust removal system 800 through an exhaust gas pipeline 607, so that the exhaust gas emission and the material collection are facilitated. In actual work, the solid rubber particles produced by the suspension drying system 600 fall into the suspension drying furnace 601, the solid rubber particles sequentially pass through a plurality of heating zones, the drying nozzles 605 of each heating zone eject hot air towards the advancing direction of the rubber, so that the solid rubber particles are dried for the second time in the advancing process, and the dried rubber particles after the second time are pushed to the bottom end of the settling chamber 606 by the drying nozzles 605 for storage.
Referring to fig. 3, the heating temperature control system 400 includes a hot-blast stove 401, and the hot-blast stove 401 is provided with at least three heating pipes 402, 403, 404 in a communication manner; an air distributor 503 is arranged at the top in the spray drying tower 500, and the first heat supply pipe 402 is communicated with the air distributor 503 and supplies hot air; the second heat supply pipe 403 is communicated with the air blowing shell 505 and supplies hot air for the air interlayer 506; the third heat supply line 404 communicates with the respective heating zones 602, 603, 604 of the suspension drying furnace 601 and supplies hot gas. As an improvement, the heat supply temperatures of the first heat supply pipe 402, the second heat supply pipe 403, and the third heat supply pipe 404 are different, specifically, each heat supply pipe is provided with a cold air adjusting valve 405, and the flow of the normal temperature air entering the heat supply pipe is controlled by the cold air adjusting valve 405, so that the temperature in each heat supply pipe is controlled, and thus, the rubber preparation requirements of different types can be met. Preferably, the heating temperatures of the first heating pipe 402, the second heating pipe 403, and the third heating pipe 404 are sequentially decreased.
Referring to fig. 4, the cooling and separating system 700 includes an air cooler 701, a cold exchanger 702, a cold air duct 703 and a cyclone 704, the air cooler 701 is connected to the cold exchanger 702, the cold exchanger 702 is connected to one end of the cold air duct 703 and supplies cold air to the cold air duct 703, the other end of the cold air duct 703 is communicated with the cyclone 704, and the cyclone 704 is communicated with the dust collecting and removing system 800; the bottom end of the settling chamber 606 communicates with the air inlet end of the cold air duct 703. In actual work, dry rubber particles in the sedimentation tank 606 enter the cold air duct 703, cold air in the cold air duct 703 conveys the dry rubber particles to enter the cyclone 704 for solidification and separation, and during conveying of the dry rubber particles, the cold air in the cold air duct 703 exchanges heat with the dry rubber particles, so that the dry rubber particles are cooled. The cooling mode can cool the rubber powder in the conveying process, saves additional cooling equipment, shortens the whole process time, prevents the cooled rubber particles from being agglomerated, and improves the quality of the rubber powder. The cooled dry rubber particles finally enter a cyclone 704 for solidification and separation, and the main problem is that the rubber powder is separated from water molecules.
Referring to fig. 4, the collecting and dedusting system 800 includes a bag-type dust collector 801, a storage bin 802 and an exhaust fan 803, the bag-type dust collector 801 is communicated with an exhaust gas pipeline 607, the storage bin 802 is communicated with a discharge port of the cyclone 704, and the exhaust fan 803 is communicated with the bag-type dust collector 801. The collection and dust removal system 800 further comprises a cooling fan 804, the top end of the cyclone 704 is communicated with the cooling fan 804 through a pipeline, and the exhaust end of the cooling fan 804 is communicated with an exhaust gas pipeline 607. In actual operation, the waste gas in the waste gas pipeline 607 is hot gas, the source of the hot gas is the waste gas after the heat supply temperature control system 400 supplies the waste gas to the atomizing and drying tower 501 and the suspension drying furnace 601 for drying process, the waste gas is hot air, the arrangement of the cooling fan 804 is to convey cold air in the cyclone 704 (the waste gas after heat exchange in the cold air pipeline 703) to the waste gas pipeline 607, so that the cold air and the hot air are mixed and then enter the bag-type dust collector 801 for filtering and discharging, the phenomenon of steam condensation can not be formed when the cold air and the hot air are mixed and then enter the bag-type dust collector 801 for filtering and discharging, the bag-type dust collector 801 can normally work, the rubber powder can not get damp, the waste gas of the whole production line is finally discharged out of the atmosphere through the exhaust fan 803, and the problems of dust.
The preparation method of the powder rubber by wet refining comprises the following steps of a, putting liquid rubber liquid, filling and reinforcing powder and auxiliary reagent into a wet rubber mixing system according to a certain proportion, and circularly mixing and refining the liquid rubber in the wet rubber mixing system; b, conveying the liquid colloid prepared in the step a to a spray drying system, and carrying out atomization drying on the liquid colloid by the spray drying system to prepare rubber particles; c, conveying the dried rubber particles prepared in the step b to a suspension drying system for secondary drying of suspension drying to obtain dried rubber particles; d, conveying the dried rubber particles obtained in the step d to a cooling and separating system, and cooling and separating the dried rubber particles by the cooling and separating system to obtain rubber powder; and e, conveying the rubber powder in the step d to a collecting and dedusting system for storage, collecting and filtering the waste gas of the whole production line by the collecting and dedusting system, and finally discharging the waste gas to the atmosphere.
Compared with the prior art, the production line for the wet-process refining of the powder rubber solves the problems that products in the production of powder formula rubber or non-formula rubber are easy to scorch, insufficient in drying, easy to agglomerate and form blocks in warehoused packaged products and the like, improves the production efficiency and improves the product quality.
In this embodiment, please see fig. 5, the wet rubber mixing system 100 includes an ultrasonic vortex rubber mixing mill 2, a double-shaft disperser 3 and a circulating pump 1. The circulation pump may be a multi-stage circulation pump or other circulation pump 1 known in the art. The discharge port 22 of the ultrasonic vortex rubber mixing machine is communicated with the feed port 31 of the double-shaft dispersion machine, and the discharge port 32 of the double-shaft dispersion machine is communicated with the feed port 21 of the ultrasonic vortex rubber mixing machine 2 through the circulating pump 1 to form a closed loop mixing loop.
In this embodiment, please refer to fig. 6, the ultrasonic vortex rubber mixing machine 2 includes a hollow housing 41 and a rotatable drum 42 disposed inside the housing 41, specifically, a transmission motor 43 is mounted at a top end portion of the housing 41, an output shaft of the transmission motor 43 is fixedly connected to the drum 42, a feed port 21 of the ultrasonic vortex rubber mixing machine 2 is located at a bottom of the housing 41, and a discharge port 22 of the ultrasonic vortex rubber mixing machine is located at a top of the housing 41. In order to achieve the best mixing and dispersing effect, the inner wall of the casing 41 is provided with the annular lining plate 44, the inner circular surface of the annular lining plate 44 is provided with the toothed grinding part for grinding, the mixing effect is further improved by the toothed grinding part, and in the slurry circulation process, slurry can impact the toothed grinding part on the annular lining plate 44, so that large particles are converted into smaller particles, and the production quality of rubber is further improved.
In order to further improve the mixing effect, please see fig. 6 and 7, two rings of impact blade sets are fixedly installed on the outer circumferential surface of the rotary drum 42 from top to bottom, each impact blade set is at least provided with two impact blades 45 distributed in an annular array, in an assembled state, the distance between the edge of the impact blade 45 and the tooth top of the toothed grinding part is 2mm-10mm, most preferably, the distance between the edge of the impact blade 45 and the tooth top of the toothed grinding part is 4mm, which can generate strong impact force and is not easy to block the equipment. The cooperation between the impact blade 45 and the toothed polishing portion can generate vortex impact to the slurry, thereby further improving the mixing effect. Further enhance the mixing effect, at least one circle of ultrasonic vibrator set is fixedly installed on the inner circular surface of the housing 41 from top to bottom, each ultrasonic vibrator set is at least provided with two ultrasonic vibrators 46 distributed in an annular array, and in a more preferable scheme, the amplitude of the ultrasonic vibrator 46 is overlapped with the impact range of the impact blade 45 of the rotary drum 42, so as to play a role in synergistic dispersion and crosslinking.
In this embodiment, please refer to fig. 8 to 10, the dual-shaft dispersing machine 3 includes a housing 53, and a first transmission shaft 51 and a second transmission shaft 52 disposed inside the housing 53 and capable of rotating relative to the housing 53, specifically, the first transmission shaft 51 and the second transmission shaft 52 are respectively electrically connected to a motor, the motor is installed at a top end portion of the housing 53, the first transmission shaft 51 and the second transmission shaft 52 are respectively disposed at left and right sides inside the housing 53, the working end of the first transmission shaft 51 and the working end of the second transmission shaft 52 are both fixedly connected to the dispersing plate 6, and the bottom end portion of the housing 53 is inclined downward toward the discharge port, so as to facilitate the circulation of the material.
Referring to fig. 9 and 10, the top end surface of the dispersion board 6 is fixedly connected with a plurality of flow deflectors 61 perpendicular to the top end surface, the plurality of flow deflectors 61 are distributed in an annular array with the rotation center of the dispersion board 6, and the extension lines of the flow deflectors 61 do not pass through the rotation center of the dispersion board 6 (inclined to the divergent angle line of the dispersion board 6).
In this embodiment, in order to better improve the dispersion effect, the dispersion impeller 6 of the first transmission shaft 51 and the dispersion impeller 6 of the second transmission shaft 52 are staggered in the height direction, and the staggered structure can disperse the materials more uniformly, so that the dispersion area inside the shell 53 is increased, and the work efficiency is improved.
In the present embodiment, in order to more smoothly convey the material inside the ultrasonic vortex rubber mixing machine 2 to the double-shaft disperser 3, a gap is left between the top end surface of the rotary drum 42 and the top end surface inside the casing 41 to form a slurry collecting tank 47, the discharge port 22 of the ultrasonic vortex rubber mixing machine is communicated with the slurry collecting tank 47, and the slurry collecting tank 47 is arranged to collect a certain amount of slurry, so that the problems of excessive slurry inside the ultrasonic vortex rubber mixing machine 2 and idling of the double-shaft disperser 3 are not caused.
The working steps of the wet rubber mixing system 100 for preparing the slurry in this embodiment are as follows, and include a step a of adding the liquid rubber solution, the filling reinforcing powder and the auxiliary reagent into the double-shaft dispersing machine 3 according to a certain proportion to be uniformly dispersed, specifically, two staggered dispersing disks 6 inside the double-shaft dispersing machine 3 scatter the material to form a mixed slurry, and conveying the mixed slurry to the circulating pump 1; b, conveying the mixed slurry in the step a to an acoustic wave vortex rubber mixing machine by using a circulating pump 1, and supplying slurry to an ultrasonic wave vortex rubber mixing machine 2; and c, starting a rotary drum 42 and an ultrasonic vibrator 46 of the acoustic wave vortex rubber mixing machine, enabling the slurry to be in vortex type impact towards the lining plate by the vibration of the ultrasonic vibrator 46 and the high-speed impact of an impact blade 45 when the slurry passes through a gap between the rotary drum 42 and the toothed grinding part, fully mixing the slurry, continuously supplying the slurry by the circulating pump 1 to form an upward thrust force, and overflowing the slurry to a slurry collecting groove 47 after mixing, so that the slurry in the slurry collecting groove 47 is discharged to a shell 53 of the double-shaft dispersing machine 3 through a slurry discharge pipe, and the optimal mixing and dispersing effects are achieved under continuous circulating refining, namely the gelling can be discharged. Compared with the prior art, the wet rubber mixing system 100 can not generate dust in the refining process, can not pollute the environment, reduces the labor intensity of workers, improves the production efficiency, and can further improve the mixing effect and the production quality of rubber by adopting wet refining.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. Production line for wet-process refining of powdered rubber is characterized in that: the device comprises a wet-process rubber mixing system, a spray drying system, a suspension drying system, a cooling and separation system and a collecting and dedusting system, wherein the wet-process rubber mixing system is sequentially communicated and used for dispersing and mixing liquid raw materials into slurry, the spray drying system is used for atomizing, blowing and drying the slurry supplied by the wet-process rubber mixing system into rubber particles, the suspension drying system is used for performing suspension drying on the rubber particles in the spray drying system and collecting and settling the rubber particles, the cooling and separation system is used for cooling and separating the rubber particles settled in the suspension drying system into rubber powder, and the collecting and dedusting system is used for collecting the rubber powder produced by the cooling and separation system and dedusting the waste gas; the production line also comprises a heat supply temperature control system which respectively provides heat sources for the spray drying system and the suspension drying system.
2. The production line for hydrometallurgical powder rubber according to claim 1, wherein: the spray drying system comprises a spray drying tower, wherein the lower part of the spray drying tower is a conical hopper part, at least one circle of air injection hole groups are arranged at intervals on the conical hopper part from top to bottom, and each air injection hole group comprises a plurality of annular-array air injection holes; the outside of awl fill portion is provided with the blast shell, form the air intermediate layer between the inner wall of blast shell and the awl fill portion outer wall.
3. A production line for hydrometallurgical powdered rubber according to claim 2, characterized in that: the suspension drying system comprises a suspension drying furnace, and the feed end of the suspension drying furnace is communicated with a conical hopper part of the spray drying tower; the suspension drying furnace is sequentially divided into a plurality of heating zones along the advancing direction of rubber particles, and the heating temperature of each heating zone is controlled independently; each heating area is provided with a drying nozzle inclined towards the discharging direction.
4. A production line for hydrometallurgical powdered rubber according to claim 3, wherein: the heat supply temperature control system comprises a hot blast stove, and at least three heat supply pipes are communicated with the hot blast stove; the top in the spray drying tower is provided with an air distributor, and a first heat supply pipe is communicated with the air distributor and supplies hot air; the second heat supply pipe is communicated with the air blowing shell and supplies hot air for the air interlayer; the third heat supply pipeline is communicated with each heating zone of the suspension drying furnace and supplies hot air.
5. A production line for hydrometallurgical powdered rubber according to claim 4, wherein: each heating pipe is provided with a cold air regulating valve.
6. A production line for hydrometallurgical powdered rubber according to claim 3, wherein: the discharge end of the suspension drying furnace is communicated with a settling chamber, the bottom end part of the settling chamber is communicated with a cooling separation system, and the top end part of the settling chamber is communicated with a collecting and dedusting system through a waste gas pipeline.
7. The production line for hydrometallurgical powder rubber according to claim 6, wherein: the cooling separation system comprises an air cooler, a cold exchanger, a cold air pipeline and a cyclone separator, wherein the air cooler is connected with the cold exchanger, the cold exchanger is connected with one end of the cold air pipeline and supplies cold air to the cold air pipeline, the other end of the cold air pipeline is communicated with the cyclone separator, and the cyclone separator is communicated with the collecting and dedusting system; the bottom end part of the settling chamber is communicated with the air inlet end of the cold air pipeline.
8. A production line for hydrometallurgical powdered rubber according to claim 7, wherein: the top end of the cyclone separator is communicated with a cooling fan through a pipeline, and the exhaust end of the cooling fan is communicated with a waste gas pipeline.
9. A production line for hydrometallurgical powdered rubber according to claim 7, wherein: the collecting and dedusting system comprises a bag-type dust collector, a storage bin and an exhaust fan, the bag-type dust collector is communicated with a waste gas pipeline, the storage bin is communicated with a discharge port of the cyclone separator, and the exhaust fan is communicated with the bag-type dust collector and exhausts waste gas after filtration.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181704A (en) * | 2019-04-29 | 2019-08-30 | 广东广荣纳米科技集团有限公司 | Wet process refines powdered rubber production line and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181704A (en) * | 2019-04-29 | 2019-08-30 | 广东广荣纳米科技集团有限公司 | Wet process refines powdered rubber production line and preparation method thereof |
| CN110181704B (en) * | 2019-04-29 | 2024-04-19 | 林焕 | Production line for wet refining of powdered rubber and preparation method thereof |
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Assignee: Maoming guangkaiyuan Machinery Manufacturing Co.,Ltd. Assignor: Lin Huan Contract record no.: X2022440000041 Denomination of utility model: Production line for hydrometallurgy of powdered rubber Granted publication date: 20200313 License type: Exclusive License Record date: 20220613 |
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Effective date of registration: 20230331 Address after: 525000 Floor 1, No. 2, East Zone, Zhongrun Industrial City, Shayuan Town, Dianbai District, Maoming City, Guangdong Province (independent application) Patentee after: Guangdong Guangrong Nanotechnology Group Co.,Ltd. Address before: No.76, group 1, hongshiyue Weizi village, poxin Town, Maogang District, Maoming City, Guangdong Province, 525031 Patentee before: Lin Huan |
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