CN110733157A - EPS microwave prefoaming device - Google Patents
EPS microwave prefoaming device Download PDFInfo
- Publication number
- CN110733157A CN110733157A CN201911138514.2A CN201911138514A CN110733157A CN 110733157 A CN110733157 A CN 110733157A CN 201911138514 A CN201911138514 A CN 201911138514A CN 110733157 A CN110733157 A CN 110733157A
- Authority
- CN
- China
- Prior art keywords
- microwave
- stainless steel
- tank body
- inner sleeve
- wave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/08—Conditioning or physical treatment of the material to be shaped by using wave energy or particle radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/12—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft
- B29B7/14—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft with screw or helix
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3442—Mixing, kneading or conveying the foamable material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
- B29K2025/04—Polymers of styrene
- B29K2025/06—PS, i.e. polystyrene
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Molding Of Porous Articles (AREA)
Abstract
The invention provides an EPS microwave pre-foaming device, which comprises a support frame, a microwave heating jacketed tank, a stirrer, a material injection valve, a water injection valve and a pneumatic discharge valve, wherein the microwave heating jacketed tank comprises a stainless steel outer tank body and a wave-transmitting inner sleeve, a plurality of holes are formed in the circular-arc-shaped cylinder wall of the stainless steel outer tank body, a microwave generator is arranged outside the holes, and the microwave generator is provided with a wave guide plate extending into a microwave cavity.
Description
Technical Field
The invention relates to the technical field of EPS production equipment, in particular to an EPS microwave pre-foaming device.
Background
The EPS product is formed by a process of pre-foaming, wherein beads containing foaming agent are heated by introducing steam to slowly heat, the foaming agent in the beads is heated to vaporize and generate pressure to expand the beads and form complementary communicated cells (closed cells), meanwhile, steam permeates into the expanded cells to ensure that most of foaming gas is remained in the cells, so that the total pressure in the cells is increased, the foaming agent cannot escape in the cells in time, so that the polymer is drawn to be in a rubber state, the strength is enough to balance the internal pressure, the polymer is extended, and the beads are pre-expanded.
Disclosure of Invention
The invention aims to provide EPS microwave pre-foaming devices, which have the advantages of high energy utilization rate, less pollution discharge, safety, reliability, low production cost and high production efficiency.
The technical scheme includes that the EPS microwave pre-foaming device is characterized by comprising a support frame, a microwave heating sleeve tank, a stirrer, an injection valve, a water injection valve and a pneumatic discharge valve, wherein the microwave heating sleeve tank is positioned above the support frame and comprises a stainless steel outer tank body and a wave-transmitting inner sleeve, the stainless steel outer tank body is a cylindrical tank body with an upper end cover and a lower end cover, the wave-transmitting inner sleeve is positioned in the middle of the stainless steel outer tank body, the upper end and the lower end of the wave-transmitting inner sleeve are respectively connected with the upper end cover and the lower end cover of the stainless steel outer tank body in a sealing mode, a sealed microwave cavity is formed between the outside of the wave-transmitting inner sleeve and the stainless steel outer tank body, a heating pre-foaming cavity for containing raw materials is formed by combining the wave-transmitting inner sleeve and the upper end cover of the stainless steel outer tank body, a plurality of holes are formed in the circular cylindrical wall of the stainless steel outer tank body, a microwave generator is arranged outside the holes, a wave guide plate extending into the microwave cavity is arranged in the microwave cavity, the injection valve, the air-transmitting inner sleeve is positioned at the upper end cover of the stainless steel outer tank body, and is communicated with a discharge hole in the stainless steel outer tank body, and a heat-transmitting inner sleeve.
step, the agitator comprises a motor and an agitating blade, wherein the motor is positioned outside the upper end cover of the stainless steel outer tank body, the agitating blade passes through the upper end cover of the stainless steel outer tank body through a rotating shaft and extends into the heating pre-foaming cavity at the center of the wave-transmitting inner sleeve, and the material injection valve and the water injection valve are communicated with the heating pre-foaming cavity.
, arranging a transparent observation port communicated with the wave-transmitting inner sleeve on the wall of the stainless steel outer tank, and arranging a temperature sensor in the transparent observation port.
, a water collecting cavity is arranged at the bottom of the lower end cover of the stainless steel outer tank body and is communicated with the bottom of the heating pre-foaming cavity through a filter screen and a valve .
, a supporting frame is arranged on the wall of the wave-transmitting inner sleeve.
, the wave-transparent inner sleeve and the microwave insulation layer are made of glass, ceramics or plastics which can penetrate through electromagnetic wave.
The EPS microwave pre-foaming device solves the problem that a common EPS pre-foaming tank cannot realize microwave heating, the EPS pre-foaming tank adopts microwave heating, the temperature control accuracy is high, the production efficiency is high, the heat loss of each part such as a steam energy storage tank and a steam pipeline in the traditional process is reduced, and the energy utilization rate is improved; the invention has simple structure, reduces the basic investment of the boiler and the supporting facilities thereof, and reduces the production cost; no waste gas leakage caused by high-pressure steam exists in the production process, so that the safety of personnel is ensured, and the environmental pollution is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an EPS microwave pre-foaming device according to the present invention.
The corresponding part names in the figure are: 1, supporting a frame; 2, a stirrer; 3, a material injection valve; 4, a water injection valve; 5, a pneumatic discharge valve; 6 stainless steel outer tank body; 7 wave-transparent inner sleeve; 8, an upper end cover; 9, a lower end cover; 10 microwave cavity; 11 heating the pre-foaming cavity; 12 a microwave generator; 13 a wave guide plate; 14, a discharge hole; 15 a transparent viewing port; 16 a temperature sensor; 17 a water collecting cavity; 18 a support frame; 19 microwave insulating layer; 21 a motor; 22 stirring blade.
Detailed Description
In order to make the technical features, objects and effects of the present invention more clearly understood, the following detailed description of the embodiments, structures and features of the present invention is given with reference to the accompanying drawings and the preferred embodiments. However, the drawings are only for reference and illustration purposes and are not intended to limit the invention.
Referring to fig. 1, the EPS microwave pre-foaming device provided by the invention comprises a support frame 1, a microwave heating sleeve tank, a stirrer 2, a material injection valve 3, a water injection valve 4 and a pneumatic discharge valve 5, wherein the microwave heating sleeve tank is positioned above the support frame 1, the microwave heating sleeve tank comprises a stainless steel outer tank body 6 and a wave-transmitting inner sleeve 7, the stainless steel outer tank body 6 is a cylindrical tank body with an upper end cover 8 and a lower end cover 9, the wave-transmitting inner sleeve 7 is positioned in the middle of the stainless steel outer tank body 6, the upper end and the lower end of the wave-transmitting inner sleeve 7 are respectively in sealing connection with the upper end cover 8 and the lower end cover 9 of the stainless steel outer tank body, a sealed microwave cavity 10 is formed between the outside of the wave-transmitting inner sleeve 7 and the stainless steel outer tank body 6, the wave-transmitting inner sleeve 7 and the upper end cover and the lower end cover of the stainless steel outer tank body 6 are combined into a heating pre-foaming cavity 11 for containing raw materials, a plurality of circular arc-shaped inner sleeve-shaped heating pre-foaming cavities 11 are formed with a plurality of microwave generators 12, a microwave generator 12 is arranged outside the holes, a guide plate 13 extending into the inner sleeve cavity in the microwave heating sleeve cavity, the inner sleeve is arranged in the stainless steel outer tank body, the inner sleeve 7, the inner sleeve is arranged on the inner sleeve 3, the inner sleeve is arranged on the inner sleeve, the inner sleeve 7, the inner sleeve is arranged on the inner sleeve, the inner sleeve is arranged on the bottom of the inner sleeve, the inner sleeve is communicated with the inner sleeve, the inner sleeve 7, the inner sleeve is communicated with the stirring sleeve, the stirring valve 2, the stirring sleeve, the stirring valve.
The EPS raw material beads are injected from an injection valve 3, water is injected from a water injection valve 4, the EPS raw material beads and the water are injected according to a fixed proportion of , water molecules and a microwave electromagnetic field interact with each other to convert the water temperature into heat energy, so that the water temperature rises, the material particles are completely wrapped by the water molecules, the heat energy is transferred to the material while the water temperature rises, and the accumulated water in the material is heated and expanded if the surplus foaming agent exists, and enters a water collecting cavity 17 through a filter screen and a valve , and the material is conveyed to a material discharging process of a pre-foaming processing valve 395 through a pneumatic discharging process of a material discharging valve .
Various modifications to the above-described embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
Claims (6)
- The EPS microwave pre-foaming device is characterized by comprising a support frame, a microwave heating sleeve tank, a stirrer, an injection valve, a water injection valve and a pneumatic discharge valve, wherein the microwave heating sleeve tank is positioned above the support frame and comprises a stainless steel outer tank body and a wave-transmitting inner sleeve, the stainless steel outer tank body is a cylindrical tank body with an upper end cover and a lower end cover, the wave-transmitting inner sleeve is positioned in the middle of the stainless steel outer tank body, the upper end and the lower end of the wave-transmitting inner sleeve are respectively connected with the upper end cover and the lower end cover of the stainless steel outer tank body in a sealing mode, a sealed microwave cavity is formed between the outer part of the wave-transmitting inner sleeve and the stainless steel outer tank body, a heating pre-foaming cavity for containing raw materials is formed in the wave-transmitting inner sleeve and the upper end cover of the stainless steel outer tank body in a combining mode, a plurality of holes are formed in the circular cylindrical wall of the stainless steel outer tank body, a microwave generator is arranged outside each hole, a waveguide plate extending into the microwave cavity is arranged on the microwave generator, the injection valve, the water injection valve and the stirrer are arranged at the outer bottom of the stainless steel tank body, and are communicated with a heat-transmitting inner sleeve in the microwave cavity, and a heat-insulating.
- 2. The EPS microwave pre-foaming device according to claim 1, wherein: the agitator includes motor and stirring leaf, and wherein the motor is located outside the upper end cover of the outer jar of body of stainless steel, and in the heating prefoaming cavity that the upper end cover that the stirring leaf passed the outer jar of body of stainless steel through the pivot extended to wave-transparent inner skleeve center, notes material valve, water injection valve all communicate with heating prefoaming cavity.
- 3. The EPS microwave pre-foaming device according to claim 1, wherein: the wall of the stainless steel outer tank body is provided with a transparent observation port communicated with the wave-transmitting inner sleeve, and a temperature sensor is arranged in the transparent observation port.
- 4. The EPS microwave prefoaming device according to claim 1, wherein a water collecting cavity is arranged at the bottom of the lower end cover of the stainless steel outer tank body, and the water collecting cavity is communicated with the bottom of the heating prefoaming cavity through a filter screen and a valve .
- 5. The EPS microwave pre-foaming device according to claim 1, wherein: and a supporting frame is arranged on the wall of the wave-transmitting inner sleeve.
- 6. The EPS microwave pre-foaming device according to claim 1, wherein: the wave-transmitting inner sleeve and the microwave insulation layer are made of glass, ceramics or plastics which can transmit electromagnetic waves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911138514.2A CN110733157A (en) | 2019-11-20 | 2019-11-20 | EPS microwave prefoaming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911138514.2A CN110733157A (en) | 2019-11-20 | 2019-11-20 | EPS microwave prefoaming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110733157A true CN110733157A (en) | 2020-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911138514.2A Pending CN110733157A (en) | 2019-11-20 | 2019-11-20 | EPS microwave prefoaming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110733157A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112549344A (en) * | 2020-11-26 | 2021-03-26 | 易健 | Styrofoam auxiliary processing manufacturing device |
-
2019
- 2019-11-20 CN CN201911138514.2A patent/CN110733157A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112549344A (en) * | 2020-11-26 | 2021-03-26 | 易健 | Styrofoam auxiliary processing manufacturing device |
| CN112549344B (en) * | 2020-11-26 | 2022-05-24 | 易健 | Styrofoam auxiliary processing manufacturing device |
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