CN211762994U - Kettle pressure foaming and recovering device for polystyrene foaming beads - Google Patents
Kettle pressure foaming and recovering device for polystyrene foaming beads Download PDFInfo
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- CN211762994U CN211762994U CN202020160684.2U CN202020160684U CN211762994U CN 211762994 U CN211762994 U CN 211762994U CN 202020160684 U CN202020160684 U CN 202020160684U CN 211762994 U CN211762994 U CN 211762994U
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Abstract
The utility model relates to a cauldron pressure foaming and recovery unit for polystyrene foaming bead, including following part: the device comprises a reaction kettle (9), an auxiliary agent preparation kettle (1), a weighing bin (8), an inert foaming agent pressure supplementing tank (10), a compressed air pressure supplementing tank (11) and a material collecting pool (13); wherein, be equipped with feed inlet, discharge gate and gaseous exit on reation kettle (9), the feed inlet is connected with the discharge gate of auxiliary agent preparation cauldron (1) and weighing feed bin (8), and gaseous exit is connected with the gas outlet of inert foaming agent after-pressure jar (10) and compressed air after-pressure jar (11), and reation kettle's (9) discharge gate is connected with material collecting pit (13), and the top of material collecting pit (13) is equipped with cooling spray thrower (12). Adopt the utility model discloses a device, workman need not at the production site, only need operate at the control room to reduce the degree of dependence to manual operation, be favorable to extensive, high efficiency production.
Description
Technical Field
The utility model belongs to macromolecular material processing field, concretely relates to foaming and recovery unit are pressed to cauldron for polystyrene expanded bead.
Background
Expanded Polystyrene (EPS), also known as expandable polystyrene, has the advantages of small relative density (1.05g/cm), low thermal conductivity, low water absorption, impact vibration resistance, heat insulation, sound insulation, moisture resistance, vibration reduction, excellent dielectric property and the like, and is widely used for shockproof packaging materials of mechanical equipment, instruments and meters, household electrical appliances, artware and other easily damaged valuable products and packaging of fast food. At present, the industrial preparation technology of EPS mainly includes two batch preparation technologies of high pressure autoclave (kettle method for short) and continuous preparation technology combining extrusion foaming and underwater granulation (extrusion method for short).
The principle of preparing EPS beads by a kettle-type method is that a foaming agent is fully diffused into softened fine polystyrene particles at high temperature and high pressure, then the polystyrene particles impregnated with the foaming agent are quickly discharged into a normal-temperature normal-pressure environment, the mutation of pressure and temperature causes the polystyrene matrix resin to be separated from foaming agent gas impregnated in the polystyrene matrix resin, and then bubbles nucleate and grow, and the foaming agent gas escapes from the polystyrene matrix through the diffusion between the bubbles while the polystyrene particles expand until the cell structure of the EPS beads is stable. Patent CN103788502A discloses an EPP bead forming body and a typical preparation method thereof, wherein polypropylene resin particles and additives are melted, blended and granulated underwater to form polypropylene resin particles, the particles are mixed with auxiliary agents in an uncapped autoclave, the autoclave is capped after the air in the autoclave is discharged by inert foaming agents (nitrogen or carbon dioxide), then the temperature and the pressure are raised to the temperature and the pressure required by foaming, after the mixture is continuously stirred for a period of time, a discharge port of the autoclave is opened, the materials in the autoclave are discharged into a collecting tank while the inert foaming agents are fed, and the foaming ratio is 3-45 times and the density is 0.02-0.3 g/cm through adjusting the operation conditions and the formula3EPP beads according to (1).
The kettle process has little influence on the environment, the produced EPS bead product can be foamed for the second time, and the required foaming ratio can be obtained, and simultaneously, a good cellular structure can be kept, so that the kettle process is widely applied to the production of EPS beads. However, this process also has some problems, such as: the process is complex, the automation degree of the kettle pressure foaming link is low, and manual operation is relied on; when the reaction kettle discharges materials, a large amount of steam can be formed by high-temperature materials discharged from the reaction kettle, so that the operation environment is severe; at the foaming temperature, the polystyrene particles begin to soften, so that the particles are easily adhered together after being discharged, and the product yield is influenced. These factors all restrict the large-scale production of EPS beads and greatly limit the production efficiency, resulting in higher overall costs.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art exist not enough, provide a foaming and recovery unit are pressed to cauldron for polystyrene foaming bead. The utility model discloses the process flow automation degree of device is high, improves operational environment, and the EPS bead can not be glutinous even, and the product percent of pass is high.
In order to solve the above technical problem, the first aspect of the present invention provides a kettle pressure foaming and recycling device for polystyrene foam beads, comprising:
a reaction kettle 9, an auxiliary agent preparation kettle 1, a weighing bin 8, an inert foaming agent pressure supplementing tank 10, a compressed air pressure supplementing tank 11, a sieving device 38, a drainage tank 14 and a material collecting tank 13,
wherein, a feed inlet, a discharge outlet and a gas phase inlet and outlet are arranged on the reaction kettle 9, the feed inlet is connected with the auxiliary agent preparation kettle 1 and the discharge outlet of the weighing bin 8, the gas phase inlet and outlet is connected with the gas outlets of the inert foaming agent pressure supplementing tank 10 and the compressed air pressure supplementing tank 11, the discharge outlet of the reaction kettle 9 is connected with the material collecting tank 13, the cooling sprayer 12 is arranged above the material collecting tank 13, the bottom of the water discharging tank 14 is provided with a water discharging pipe 25, the water outlet of the water discharging pipe 25 is connected with the sieving device 38, and the discharge outlet of the sieving device 38 is connected with the feed.
According to some embodiments of the utility model, the device still includes solid feeder 2 and deionized water pipe 19, and the discharge gate of solid feeder 2 and the delivery port of deionized water pipe 19 are connected with the feed inlet that cauldron 1 was prepared to the auxiliary agent respectively.
According to some embodiments of the invention, the apparatus further comprises a first rotary feeder 4, a separator 3, a mobile hopper 17 and a vacuum pump 7; the discharge gate of first rotatory feeder 4 is connected with the feed inlet of the feed bin 8 of weighing, and the discharge gate of separator 3 is connected with the feed inlet of first rotatory feeder 4, and the feed inlet of separator 3 is connected with removal hopper 17, and the gas outlet of separator 3 is connected with vacuum pump 7.
According to some embodiments of the utility model, the device still includes the rotatory feeder 6 of second, cyclone 5, and the discharge gate of the rotatory feeder 6 of second is connected with the feed inlet of the feed bin 8 of weighing, and cyclone 5's discharge gate is connected with the feed inlet of the rotatory feeder 6 of second, and cyclone 5's air inlet is connected with separator 3's gas outlet, and cyclone 5's gas outlet and vacuum pump 7 are connected.
According to some embodiments of the utility model, the device still includes atmosphere blow-down pipe 21 and blow-down pipe 22, and atmosphere blow-down pipe 21 and blow-down pipe 22 are imported and exported with reation kettle 9's gaseous phase and are connected.
According to some embodiments of the present invention, the atmospheric vent 21 is in communication with the outside atmosphere via a vent line; an inert foaming agent pressure supplementing tank 10 (the inert foaming agent is nitrogen or carbon dioxide) and a compressed air pressure supplementing tank 11 are communicated with the reaction kettle 9 through pressure supplementing pipelines.
According to some embodiments of the present invention, the weighing bin 8 is provided with a weighing module, and an automatic valve is arranged on a connecting line between the discharge port and the reaction kettle 9, and the automatic valve is controlled by the weighing module; automatic valves are respectively arranged on the emptying pipeline and the pressure supplementing pipeline for switching, pressure regulating valves are also respectively arranged on the emptying pipeline and the pressure supplementing pipeline, and pressure gauge control pressure regulating valves are arranged on the upper portion of the reaction kettle 9.
According to the utility model discloses a some embodiments, the lateral wall height that links to each other between material collecting pit 13 and the drainage pond 14 is less than other lateral walls in two ponds, and the lateral wall top that two ponds link to each other sets up grid baffle 15, and the partly particle diameter that is less than the polystyrene expanded beads in grid aperture makes water can follow material collecting pit 13 overflow and go into drainage pond 14, and a part of bead is held back in material collecting pit 13 by grid baffle 15. The beads which do not meet the requirements for particle size enter the drainage basin 14 and then enter the sifter 38 through the drainage pipe 25, the sifter 38 separates the beads from the water, and the unqualified beads enter the reaction kettle 9 again for re-granulation.
According to the utility model discloses a some embodiment are provided with electric heater and temperature-controlled instrument on reation kettle 9's the cauldron body, are provided with agitating unit in reation kettle 9, set up the bleeder valve on reation kettle 9's the lower part discharging pipe line.
According to some embodiments of the utility model, the inside of auxiliary agent preparation cauldron 1 is provided with agitating unit, and solid feeder 2 and deionized water pipeline are connected on upper portion.
According to some embodiments of the present invention, the cooling sprayer 12 is connected to a water pipe, is slightly higher than the end of the discharge port of the reaction kettle 9, and covers the upper part of the material collecting tank 13; material collecting pit 13 is located reation kettle 9 under, and has a lateral wall to link to each other with water drainage tank 14 between, and water drainage tank 14 bottom sets up the outlet, and material collecting pit 13 and water drainage tank 14 surround by enclosing fender 16 all around, enclose the discharge gate that 16 tops of fender are higher than reation kettle 9, prevent that blowing in-process material from splashing.
According to some embodiments of the utility model, the device still includes drainage basin 14, and drainage basin 14 is connected with material collecting tank 13, is equipped with grid baffle 15 on the both lateral wall that is connected, and grid baffle 15's a part aperture is less than polystyrene expanded beads's particle size.
The second aspect of the present invention provides a method for foaming polystyrene by using the kettle pressure foaming device of the first aspect of the present invention, preferably comprising the following steps,
1) providing an auxiliary agent suspension, and then adding the auxiliary agent suspension into a reaction kettle 9;
2) adding polystyrene particles into a reaction kettle 9, introducing an inert foaming agent to pressurize and heat the reaction kettle 9;
3) and discharging and cooling to obtain the polystyrene expanded beads.
According to some embodiments of the present invention, step 1) comprises the following specific steps: adding the auxiliary agent into an auxiliary agent preparation kettle 1 containing deionized water through a solid feeder 2, starting the kettle for stirring to obtain an auxiliary agent suspension, opening an atmospheric vent pipe 21 on a reaction kettle 9 to communicate with the atmosphere, and adding the auxiliary agent suspension into the reaction kettle 9. And adding deionized water into the auxiliary agent preparation kettle 1 again until the formula is specified, and adding the deionized water into the reaction kettle from the auxiliary agent preparation kettle.
According to some embodiments of the present invention, step 2) comprises the following specific steps: opening a vacuum pump 7 to form negative pressure in the separator 3 and the cyclone separator 5, sucking and conveying polystyrene particles into the separator 3 and the cyclone separator 5, then feeding the polystyrene particles into a weighing bin 8 through a first rotary feeder 4 and a second rotary feeder 6, metering by a weighing module, and adding the polystyrene particles into a reaction kettle 9; opening a stirring device of the reaction kettle 9, opening an inert foaming agent pressure supplementing tank 10, introducing an inert foaming agent into the reaction kettle 9, closing a pressure regulating valve on a pressure supplementing pipeline after the kettle pressure rises to some extent, opening a pressure regulating valve on an emptying pipe 22, discharging residual air in the kettle, starting an electric heater to heat the reaction kettle 9 to a foaming temperature, and simultaneously continuing introducing the inert foaming agent into the reaction kettle 9 to the foaming pressure through the pressure regulating valve.
According to some embodiments of the present invention, step 3) comprises the following specific steps: after continuously stirring for a certain time at the foaming temperature and under the foaming pressure, the cooling sprayer 12 is started, water is added into the material collecting tank 13 to more than one half of the highest water level, the pressure supplementing gas is switched into compressed air, and discharging is started. Opening a discharge valve at the bottom of the reaction kettle 9, discharging the materials in the reaction kettle 9 to a material collecting pool while supplementing pressure to obtain polystyrene foaming beads, feeding the beads with the particle size not meeting the requirement into a drainage pool 14, then feeding the beads into a sieving device 38 through a drainage pipe 25, and feeding the unqualified beads into the reaction kettle again by the sieving device 38 for granulation.
According to the utility model discloses a some embodiment, the blowing finishes the back and closes agitating unit, pressure regulating valve and the electric heater among reation kettle 9, continues to let in compressed air and deionized water several minutes in to reation kettle 9, washes away and cools down the interior residual material of cauldron, closes the bleeder valve, prepares to carry out next round of production. After being cooled by spraying, the EPS beads float on the water surface; when the liquid level in the material collecting tank 13 is too high, the water in the tank can overflow into the drainage tank 14 and be drained.
The utility model has the advantages that:
1. through setting up automatic solid charging machine, polystyrene particle feeding equipment, the feed bin of weighing, need not artifical reinforced, greatly reduced intensity of labour to improved reinforced accuracy, and set up automatic control appearance and valve etc. improved the degree of automation of production process, the workman need not on the production site, only need operate at the control room, thereby reduced the degree of dependence to manual operation, be favorable to extensive, high efficiency production.
2. By arranging the enclosure and the grid baffle, the material is prevented from splashing, high-temperature steam generated during material discharging is blocked, and the operating environment is improved; through setting up cooling spray thrower and material collecting pit, make the EPS bead cool down rapidly, prevent to take place to glue between the bead and even, be favorable to improving the product percent of pass, further reduced manufacturing cost.
3. The beads with the particle sizes not meeting the requirements are screened out by the screen and enter the reaction kettle again for granulation, so that secondary utilization of waste products is facilitated, and the utilization rate of raw materials is improved.
Drawings
Fig. 1 is a schematic process flow diagram for foaming polystyrene particles with a kettle pressure foaming device according to some embodiments of the present invention;
wherein the reference numerals are:
1-an auxiliary agent preparation kettle; 2-a solid feeder; 3-a separator; 4-a first rotary feeder; 5-a cyclone separator; 6-a second rotary feeder; 7-a vacuum pump; 8-weighing stock bin; 9-a reaction kettle; 10-an inert foaming agent pressure supplementing tank; 11-compressed air pressure supplementing tank; 12-a cooling sprayer; 13-a material collecting tank; 14-a drainage pool; 15-a grid baffle; 16-fencing; 17-moving the hopper; 18-a heater; 19-deionized water pipe; 20-polystyrene microparticles; 21-atmospheric vent pipe; 22-a blow-down pipe; 23-fresh water pipe; 24-EPS beads; 25-a drain pipe; 26-pressure gauge; 27-temperature meter; 28-flow cumulative regulating valve; 29-a weighing module; 30-a first pressure regulating valve; 31-a second pressure regulating valve; 32-a discharge valve; 33-automatic valve number one; 34-automatic valve number two; 35-automatic valve number three; number 36-four automatic valve; automatic valve No. 37-five; 38-sifter.
Detailed Description
The present invention will be further illustrated by the following examples.
The utility model provides a kettle pressure foaming and recovery unit (as shown in figure 1) for polystyrene foaming bead, including following part:
a reaction kettle 9, an auxiliary agent preparation kettle 1, a weighing bin 8, an inert foaming agent pressure supplementing tank 10, a compressed air pressure supplementing tank 11, a sieving device 38, a drainage tank 14 and a material collecting tank 13,
wherein, a feed inlet, a discharge outlet and a gas phase inlet and outlet are arranged on the reaction kettle 9, the feed inlet is connected with the auxiliary agent preparation kettle 1 and the discharge outlet of the weighing bin 8, the gas phase inlet and outlet is connected with the gas outlets of the inert foaming agent pressure supplementing tank 10 and the compressed air pressure supplementing tank 11, the discharge outlet of the reaction kettle 9 is connected with the material collecting tank 13, a cooling sprayer 12 is arranged above the material collecting tank 13, a drain pipe 25 is arranged at the bottom of the drain tank 14, the water outlet of the drain pipe 25 is connected with the sieving device 38, and the discharge outlet of the sieving device 38 is connected with the feed inlet of the;
the kettle pressure foaming and recovering device also comprises a solid feeder 2 and a deionized water pipe 19, wherein a discharge hole of the solid feeder 2 and a water outlet of the deionized water pipe 19 are respectively connected with a feed inlet of the auxiliary agent preparation kettle 1;
the kettle pressure foaming and recovering device also comprises a first rotary feeder 4, a separator 3, a movable hopper 17 and a vacuum pump 7; the discharge hole of the first rotary feeder 4 is connected with the feed inlet of the weighing bin 8, the discharge hole of the separator 3 is connected with the feed inlet of the first rotary feeder 4, the feed inlet of the separator 3 is connected with the movable hopper 17, and the gas outlet of the separator 3 is connected with the vacuum pump 7;
the kettle pressure foaming and recycling device further comprises a second rotary feeder 6 and a cyclone separator 5, wherein a discharge hole of the second rotary feeder 6 is connected with a feed inlet of a weighing bin 8, a discharge hole of the cyclone separator 5 is connected with a feed inlet of the second rotary feeder 6, an air inlet of the cyclone separator 5 is connected with an air outlet of the separator 3, and an air outlet of the cyclone separator 5 is connected with a vacuum pump 7;
the kettle pressure foaming and recovering device also comprises an atmospheric vent pipe 21 and a vent pipe 22, wherein the atmospheric vent pipe 21 and the vent pipe 22 are connected with a gas phase inlet and a gas phase outlet of the reaction kettle 9;
still press foaming and recovery unit still includes drainage tank 14, and drainage tank 14 is connected with material collecting tank 13, is equipped with grid baffle 15 on the both lateral walls that are connected, and grid baffle 15's aperture is less than the particle size of polystyrene foaming bead.
Example 1
The device of the present embodiment, as shown in fig. 1, comprises the following components: a reaction kettle 9, an auxiliary agent preparation kettle 1, a weighing bin 8, an inert foaming agent pressure supplementing tank 10, a compressed air pressure supplementing tank 11, a sieving device 38, a drainage tank 14 and a material collecting tank 13,
wherein, a feed inlet, a discharge outlet, an air inlet and an air outlet are arranged on the reaction kettle 9, the feed inlet is connected with the auxiliary agent preparation kettle 1 and the discharge outlet of the weighing bin 8, a first automatic valve 33 and a second automatic valve 34 are respectively arranged on the connected pipelines, the air inlet is connected with the air outlets of the inert foaming agent pressure supplementing tank 10 and the compressed air pressure supplementing tank 11, and the air outlet is connected with the atmospheric vent pipe 21 and the vent pipe 22; a discharge port of the reaction kettle 9 is connected with a material collecting tank 13, a cooling sprayer 12 is arranged above the material collecting tank 13, a drain pipe 25 is arranged at the bottom of the drain tank 14, a water outlet of the drain pipe 25 is connected with a sieving device 38, and a discharge port of the sieving device 38 is connected with a feed port of the reaction kettle 9.
In this embodiment, the kettle pressure foaming and recovering device further comprises a solid feeder 2 and a deionized water pipe 19, wherein a discharge port of the solid feeder 2 and a water outlet of the deionized water pipe 19 are respectively connected with a feed port of the auxiliary agent preparation kettle 1. The auxiliary agent preparation kettle 1 is provided with a stirring device. The deionized water pipe 19 is provided with a flow rate accumulation regulating valve 28.
In this embodiment, the kettle pressure foaming and recovering device further comprises a first rotary feeder 4, a separator 3 and a vacuum pump 7; the discharge gate of first rotatory feeder 4 is connected with the feed inlet of the feed bin 8 of weighing, and the discharge gate of separator 3 is connected with the feed inlet of first rotatory feeder 4, and the feed inlet of separator 3 is connected with removal hopper 17, and the gas outlet of separator 3 is connected with vacuum pump 7.
In this embodiment, the kettle pressure foaming and recycling device further comprises a second rotary feeder 6 and a cyclone separator 5, wherein a discharge port of the second rotary feeder 6 is connected with a feed port of the weighing bin 8, a discharge port of the cyclone separator 5 is connected with a feed port of the second rotary feeder 6, an air inlet of the cyclone separator 5 is connected with an air outlet of the separator 3, and an air outlet of the cyclone separator 5 is connected with the vacuum pump 7.
In this embodiment, the cauldron body of reation kettle 9 is provided with electric heater 18, by thermometer 27 control, sets up agitating unit in the cauldron, and bleeder valve 32 is connected to reation kettle 9's below. Material collecting pit 13 and drainage pond 14 are equipped with above the lateral wall that reation kettle 9 below is two ponds links to each other and sets up grid baffle 15, and two ponds are surrounded by enclosing fender 16 all around, and material collecting pit 13 is overhead to cover cooling spray thrower 12, and cooling spray thrower 12 links to each other with water pipe 23, and drainage pond 14 is provided with drain pipe 25.
Example 2
This example provides a method for foaming polystyrene microparticles using the kettle pressure foaming and recycling apparatus of example 1, comprising the steps of:
1) deionized water is added into the auxiliary agent preparation kettle 1 through the flow accumulation regulating valve 28, a stirring device in the auxiliary agent preparation kettle 1 is started, then the auxiliary agent is added into the auxiliary agent preparation kettle 1 in proportion through the solid feeding machine 2, after the stirring is uniform, the automatic valve No. three 35 is firstly opened to communicate the reaction kettle 9 with the atmosphere, the automatic valve No. one 33 is then opened to add the auxiliary agent suspension into the reaction kettle 9, and the automatic valve No. one 33 is closed and the stirring is carried out. Adding deionized water into the auxiliary agent preparation kettle 1 again to a specified amount through the flow accumulation regulating valve 28, opening the automatic valve 33I, adding the deionized water into the reaction kettle 9, and then closing the automatic valve 33I;
2) and starting a vacuum pump 7 to form negative pressure in the pipeline, sucking and conveying the polystyrene particles 20 in the movable hopper 17 into the separator 3 and the cyclone separator 5, dropping the polystyrene particles into a weighing bin 8 through a first rotary feeder 4 and a second rotary feeder 6, metering by a weighing module 29, opening an automatic valve 34 II, and adding quantitative particles into the reaction kettle 9. Closing the second automatic valve 34 and the third automatic valve 35, starting a stirring device in the reaction kettle 9, starting the fourth automatic valve 36, the first pressure regulating valve 30 and the second pressure regulating valve 31, introducing an inert foaming agent (nitrogen or carbon dioxide) for pressurization, discharging residual air in the reaction kettle 9, starting the electric heater 18 to heat the material, regulating kettle pressure through the pressure gauge 26, the first pressure regulating valve 30 and the second pressure regulating valve 31 until the foaming temperature and the foaming pressure are reached, and then controlling the materials in the kettle to be stabilized at the foaming temperature and the foaming pressure through the pressure gauge 26 and the temperature gauge 27;
3) after the reaction kettle 9 is continuously stirred for a certain time, the automatic valve 36 of the fourth number is closed, the automatic valve 37 of the fifth number is opened to switch the pressure supplementing gas into compressed air, the cooling sprayer 12 is opened at the same time, water is introduced into the material collecting pool 13 to reach half of the highest water level, the discharge valve 32 at the bottom of the reaction kettle 9 is opened, the materials in the reaction kettle 9 are discharged into the material collecting pool 13 while supplementing pressure, the beads with the particle size smaller than the pore size on the grid baffle 15 enter the drainage pool 14, then enter the sieving device 38 through the drainage pipe 25, and the sieving device 38 feeds the unqualified beads into the reaction kettle again for granulation. After the discharging is finished, the stirring device, the second pressure regulating valve 31 and the electric heater 18 in the reaction kettle 9 are closed, the reaction kettle 9 is continuously purged by compressed air for several minutes, then the first pressure regulating valve 30 and the fifth automatic valve 37 are closed, and after the reaction kettle 9 is further flushed by deionized water, the discharge valve 32 is closed to prepare for the next production.
In the preparation method of this embodiment, the EPS beads are cooled by spraying in the discharging process, float on the water surface, and become EPS bead products after being collected, washed and dried. When the liquid level in the material collecting tank 13 is too high, the water in the tank overflows into the drainage tank 14 and is discharged through the drainage pipe 25, and the grille baffle 15 between the two tanks prevents the beads with the particle size smaller than the aperture of the grille baffle 15 from floating into the drainage tank 14 along with the water.
It should be noted that the above embodiments are only used for explaining the present invention, and do not constitute any limitation to the present invention. The present invention has been described with reference to exemplary embodiments, but the words which have been used herein are words of description and illustration, rather than words of limitation. Modifications may be made to the invention as specified within the scope of the claims and modifications may be made without departing from the scope and spirit of the invention. Although the present invention has been described herein with reference to particular means, materials and embodiments, it is not intended to be limited to the particulars disclosed herein, but rather the present invention extends to all other methods and applications having the same functionality.
Claims (6)
1. A kettle pressure foaming and recovery unit for polystyrene expanded bead includes following part:
a reaction kettle (9), an auxiliary agent preparation kettle (1), a weighing bin (8), an inert foaming agent pressure supplementing tank (10), a compressed air pressure supplementing tank (11), a sieving device (38), a drainage pool (14) and a material collecting pool (13),
wherein, be equipped with feed inlet, discharge gate and gaseous phase on reation kettle (9) and import and export, the feed inlet is connected with the discharge gate that auxiliary agent prepared cauldron (1) and weighed feed bin (8), gaseous phase is imported and exported and is connected with the gas outlet of inert foaming agent after-pressure jar (10) and compressed air after-pressure jar (11), the discharge gate is connected with material collecting pit (13), the top of material collecting pit (13) is equipped with cooling spray thrower (12), the bottom of drainage pit (14) is equipped with drain pipe (25), the delivery port of drain pipe (25) with sieve ware (38) are connected, the discharge gate of sieve ware (38) with the feed inlet of reation kettle (9) is connected.
2. The kettle pressure foaming and recycling device according to claim 1, further comprising a solid feeder (2) and a deionized water pipe (19), wherein a discharge port of the solid feeder (2) and a water outlet of the deionized water pipe (19) are respectively connected with a feed port of the auxiliary agent preparation kettle (1).
3. The still pressure foaming and recovering device according to claim 1 or 2, further comprising a first rotary feeder (4), a separator (3), a moving hopper (17), and a vacuum pump (7); the discharge gate of first rotatory feeder (4) with the feed inlet of feed bin (8) of weighing is connected, the discharge gate of separator (3) with the feed inlet of first rotatory feeder (4) is connected, the feed inlet of separator (3) with remove hopper (17) and connect, the gas outlet of separator (3) with vacuum pump (7) are connected.
4. The kettle pressure foaming and recycling device according to claim 3, further comprising a second rotary feeder (6) and a cyclone separator (5), wherein a discharge port of the second rotary feeder (6) is connected with a feed port of the weighing bin (8), a discharge port of the cyclone separator (5) is connected with a feed port of the second rotary feeder (6), an air inlet of the cyclone separator (5) is connected with an air outlet of the separator (3), and an air outlet of the cyclone separator (5) is connected with the vacuum pump (7).
5. The kettle pressure foaming and recycling device according to claim 4, further comprising an atmospheric vent (21) and a vent (22), wherein the atmospheric vent (21) and the vent (22) are connected with the gas phase inlet and outlet of the reaction kettle (9).
6. The kettle pressure foaming and recycling device according to claim 5, further comprising a drainage basin (14), wherein the drainage basin (14) is connected with the material collecting basin (13), a grid baffle (15) is arranged on the side wall where the drainage basin (14) is connected with the material collecting basin, and a part of the pore diameter of the grid baffle (15) is smaller than the particle size of the polystyrene foaming beads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020160684.2U CN211762994U (en) | 2020-02-11 | 2020-02-11 | Kettle pressure foaming and recovering device for polystyrene foaming beads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020160684.2U CN211762994U (en) | 2020-02-11 | 2020-02-11 | Kettle pressure foaming and recovering device for polystyrene foaming beads |
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| Publication Number | Publication Date |
|---|---|
| CN211762994U true CN211762994U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020160684.2U Expired - Fee Related CN211762994U (en) | 2020-02-11 | 2020-02-11 | Kettle pressure foaming and recovering device for polystyrene foaming beads |
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2020
- 2020-02-11 CN CN202020160684.2U patent/CN211762994U/en not_active Expired - Fee Related
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