CN113580462A - Production equipment for degradable foaming material - Google Patents
Production equipment for degradable foaming material Download PDFInfo
- Publication number
- CN113580462A CN113580462A CN202110995716.XA CN202110995716A CN113580462A CN 113580462 A CN113580462 A CN 113580462A CN 202110995716 A CN202110995716 A CN 202110995716A CN 113580462 A CN113580462 A CN 113580462A
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- Prior art keywords
- fixedly connected
- temperature
- foaming
- stage extruder
- drying tunnel
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- 238000005187 foaming Methods 0.000 title claims abstract description 67
- 239000000463 material Substances 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 238000001035 drying Methods 0.000 claims abstract description 58
- 238000001816 cooling Methods 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 239000004970 Chain extender Substances 0.000 claims abstract description 5
- 229920000881 Modified starch Polymers 0.000 claims abstract description 5
- 239000004368 Modified starch Substances 0.000 claims abstract description 5
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 5
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000004088 foaming agent Substances 0.000 claims abstract description 5
- 235000019426 modified starch Nutrition 0.000 claims abstract description 5
- 229920001896 polybutyrate Polymers 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 24
- 238000001914 filtration Methods 0.000 claims description 22
- 230000002000 scavenging effect Effects 0.000 claims description 22
- 210000000481 breast Anatomy 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 235000019738 Limestone Nutrition 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 14
- 239000006261 foam material Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 50
- 238000007493 shaping process Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 8
- 239000006260 foam Substances 0.000 description 5
- 241000220317 Rosa Species 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
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
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0092—Drying moulded articles or half products, e.g. preforms, during or after moulding or cooling
-
- 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
-
- 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
-
- 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
- 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
- B29C44/60—Measuring, controlling or regulating
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
-
- 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
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
Abstract
The invention relates to the technical field of foam material production, in particular to production equipment for a degradable foam material, which comprises a mounting plate, wherein the top end of the mounting plate is fixedly connected with a first-stage extruder, a second-stage extruder, a cooling setting machine, a high-temperature ultraviolet drying tunnel machine and a high-temperature foaming furnace from left to right; the first-stage extruder is used for carrying out melt blending on PBAT, modified starch, a chain extender, a photoinitiator, a photocrosslinking agent and an antioxidant; the second-stage extruder is used for dispersing the foaming agent and extruding the sheet material blended by the first-stage extruder; the cooling setting machine is used for cooling and setting the extruded sheet; the high-temperature ultraviolet drying tunnel machine is used for drying the cooled and shaped sheet; the high-temperature foaming furnace is used for foaming the sheet. The production equipment provided by the invention can uniformly heat the foaming material, has a good heating effect, does not deform the material, has a good forming effect, and has a wide application value in the field of degradable foaming material production.
Description
Technical Field
The invention relates to the technical field of production of foaming materials, in particular to production equipment for a degradable foaming material.
Background
The foam is a material foamed by plastic particles, is called foam for short, and is divided into PU foam, antistatic foam, conductive foam, EPE, antistatic EPE, CR, EVA, bridging PE, SBR, EPDM and the like.
Biodegradable foam materials have become popular research now, and its production facility also needs further improvement, need dry the shaping in foam materials production process, but can produce harmful gas when the bubble is dried, and the workman can be endangered its healthy under being in this kind of environment for a long time, application number: "CN 202021998264.8" introduces an oven structure that can handle tail gas, but this structure is in the link of heating stoving, directly places the material in the oven and heats, can lead to the effect poor when heating the foaming material of smallclothes, and the shaping effect is not good.
High-temperature foaming is also needed in the production process of the foaming material, and the application number is as follows: "CN 202020770814.4" describes a foaming furnace for PVC coil production, which lacks a pressure control assembly, so that in the foaming furnace with high temperature and high pressure, if the pressure is too high, the produced foaming material is easy to deform, which affects the quality of the product.
Based on this, the invention provides a production device for degradable foaming materials to solve the problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides production equipment for the degradable foaming material, which can uniformly heat the foaming material, has good heating effect, does not deform the material, has good forming effect and has wide application value in the field of degradable foaming material production.
In order to achieve the purpose, the invention provides the following technical scheme:
a production device for degradable foaming materials comprises a mounting plate, wherein a first-stage extruder, a second-stage extruder, a cooling setting machine, a high-temperature ultraviolet drying tunnel machine and a high-temperature foaming furnace are fixedly connected to the top end of the mounting plate from left to right in sequence;
the first-stage extruder is used for carrying out melt blending on PBAT, modified starch, a chain extender, a photoinitiator, a photocrosslinking agent and an antioxidant;
the second-stage extruder is used for dispersing the foaming agent and extruding the sheet material blended by the first-stage extruder;
the cooling setting machine is used for cooling and setting the extruded sheet;
the high-temperature ultraviolet drying tunnel machine is used for drying the cooled and shaped sheet;
the high-temperature foaming furnace is used for foaming the sheet.
Preferably, the top end of the high-temperature ultraviolet drying tunnel machine is fixedly connected with a stirring assembly, the inner wall of the high-temperature ultraviolet drying tunnel machine is fixedly connected with an ultraviolet heating plate, the top end of the high-temperature ultraviolet drying tunnel machine is fixedly connected with a scavenging pump, the outer surface of the scavenging pump is provided with a scavenging pipe, the scavenging pipe penetrates through the high-temperature ultraviolet drying tunnel machine, the top end of the high-temperature ultraviolet drying tunnel machine is provided with a scavenging port, and the top end of the scavenging port is fixedly connected with a tail gas filtering assembly;
the stirring assembly comprises a stirring motor, the stirring motor is fixedly connected with the top end of the high-temperature ultraviolet drying tunnel machine, the output end of the stirring motor is fixedly connected with a stirring rod, and the tail end of the stirring rod is rotatably connected with the inner bottom wall of the high-temperature ultraviolet drying tunnel machine;
the high-temperature foaming furnace comprises a furnace body, wherein two symmetrically arranged fixed rails are fixedly connected to the inner side wall of the furnace body, one side of each fixed rail is slidably connected with a positioning slide block, one side of each positioning slide block is fixedly connected with a placing assembly, a pressure control assembly is arranged on the inner side wall of the furnace body, one side wall of the furnace body is fixedly connected with a tail gas treatment assembly, and a hot gas homogenizing assembly is fixedly connected to the position, close to the bottom end, of one side wall of the furnace body;
the pressure control assembly comprises a breast board, the breast board is connected with the inner side wall of the furnace body in a rotating mode, one side of the breast board is connected with a swing rod in a rotating mode, one end, far away from the breast board, of the swing rod is connected with a pressure-bearing sliding block in a rotating mode, the outer side wall of the furnace body is fixedly connected with a sealing cover, a fixing frame is fixedly connected with the inner wall of the sealing cover, a pressure-bearing spring is sleeved on the outer surface of the fixing frame, the pressure-bearing sliding block is connected with the fixing frame in a sliding mode, and the pressure-bearing sliding block is fixedly connected with one end of the pressure-bearing spring.
Preferably, tail gas filtering component is including the installation cover, the top fixed connection of installation cover and high temperature ultraviolet drying tunnel machine, first notch has been seted up on the top of installation cover, the surface threaded connection of installation cover has fixed cover, the surface of fixed cover is close to bottom fixedly connected with tail gas and filters the casing, the gas exchange groove has been seted up on the top of tail gas filtration casing, detachable filter core is installed to the inner wall of tail gas filtration casing, the surface rotation of tail gas filtration casing is connected with the core changing door.
Preferably, the filter element consists of an activated carbon layer and a limestone layer and is used for adsorbing tail gas generated by the ultraviolet heating material.
Preferably, the tail gas treatment assembly comprises a tail gas filter box, the tail gas filter box is fixedly connected with one side wall of the furnace body, the top end of the tail gas filter box is fixedly connected with a connecting pipe, the connecting pipe is communicated with the furnace body, and the bottom end of the tail gas filter box is communicated with the sealing cover through a pressure relief pipe; the even subassembly of steam includes the blast pump, the inner wall fixed connection of blast pump and furnace body, the surface mounting of blast pump has the outlet duct, the outlet duct runs through the furnace body.
Preferably, the placing assembly comprises a placing frame, the placing frame is fixedly connected with a positioning sliding block, and a plurality of placing plates are fixedly connected with the inner wall of the placing frame from top to bottom in sequence.
Preferably, the front walls of the first-stage extruder, the second-stage extruder, the cooling setting machine and the high-temperature ultraviolet drying tunnel machine are fixedly connected with observation windows.
Preferably, the front walls of the first-stage extruder, the second-stage extruder, the cooling setting machine and the high-temperature ultraviolet drying tunnel machine are all connected with a taking-out door in a hinge mode; the inner walls of the first-stage extruder, the second-stage extruder, the cooling setting machine, the high-temperature ultraviolet drying tunnel machine and the high-temperature foaming furnace are fixedly connected with thermometers; the thermometer penetrates through the first-stage extruder, the second-stage extruder, the cooling setting machine, the high-temperature ultraviolet drying tunnel machine and the high-temperature foaming furnace.
Preferably, the front wall of the furnace body is rotatably connected with an object taking door through a hinge, and an object viewing window is arranged on the front wall of the object taking door.
Preferably, the foaming temperature in the furnace body is 200-300 ℃.
Compared with the prior art, the invention provides production equipment for degradable foaming materials, which has the following beneficial effects:
1. in the high-temperature ultraviolet drying tunnel machine, the stirring rod is driven to rotate at a low speed by the arranged stirring motor, so that the materials in the high-temperature ultraviolet drying tunnel machine are stirred, and thus, the foaming material is heated more uniformly, the heating effect is better, and the forming effect is good.
2. In the high-temperature ultraviolet drying tunnel machine, the air in the high-temperature ultraviolet drying tunnel machine is exhausted through the tail gas filtering component by the arranged scavenging pump, so that the convection speed of the air in the high-temperature ultraviolet drying tunnel machine is increased, the flowing speed of hot air is increased, and the material is heated more uniformly.
3. According to the foaming furnace, due to the arranged pressure control assembly, when the pressure in the foaming furnace is too high, the pressure pushes the breast board to rotate, so that part of internal gas can be discharged, the pressure in the furnace is reduced, and material deformation caused by high pressure is avoided.
4. According to the foaming furnace, the internal heating can be more uniform through the arranged air blast pump, and the arranged tail gas treatment component can filter toxic gas generated by high temperature in the foaming furnace.
5. The production equipment for the degradable foaming material can ensure that the foaming material is uniformly heated, has good heating effect, does not deform, has good forming effect and has wide application value in the field of production of the degradable foaming material.
Drawings
FIG. 1 is a schematic view showing the overall structure of a production apparatus of the present invention;
FIG. 2 is a diagram of a tail gas filtering assembly in the high temperature ultraviolet drying tunnel machine according to the present invention;
FIG. 3 is a diagram of a tail gas filtering shell in the high temperature ultraviolet drying tunnel machine according to the present invention;
FIG. 4 is a cross-sectional view of a foaming oven according to the present invention;
FIG. 5 is a front view of a foaming oven according to the present invention;
FIG. 6 is an enlarged view of the foaming furnace of the present invention at A in FIG. 4.
In the figure: 1. mounting a plate; 2. a first stage extruder; 3. a second stage extruder; 4. cooling the setting machine; 5. a high-temperature ultraviolet drying tunnel machine; 6. a high temperature foaming furnace; 7. a stirring motor; 8. a stirring rod; 9. a violet outer heating plate; 10. a tail gas filtering component; 11. a scavenging pump; 12. a ventilation tube; 13. taking out the door; 14. a thermometer; 15. an observation window; 101. installing a sleeve; 102. a first notch; 103. fixing a sleeve; 104. a tail gas filtering shell; 105. a filter element; 106. a ventilation groove; 107. a core replacing door; 201. a furnace body; 202. fixing a track; 301. a positioning slide block 3; 401. a placing frame 4; 501. a placing plate 5; 601. a tail gas filter box; 701. a connecting pipe; 801. a blast pump; 901. an air outlet pipe; 1001. a sealing cover; 1101. a breast board; 1201. a swing rod; 1301. a pressure-bearing slide block; 1401. a fixed mount; 1501. a pressure-bearing spring; 1601. a pressure relief pipe; 1701. a fetching door; 1801. and (4) an object viewing window.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-6, the present invention provides the following technical solutions:
a production facility for degradable expanded material, includes mounting panel 1, its characterized in that: the top end of the mounting plate 1 is fixedly connected with a first-stage extruder 2, a second-stage extruder 3, a cooling setting machine 4, a high-temperature ultraviolet drying tunnel machine 5 and a high-temperature foaming furnace 6 in sequence from left to right;
the first-stage extruder 2 is used for carrying out melt blending on PBAT, modified starch, a chain extender, a photoinitiator, a photocrosslinking agent and an antioxidant;
the second-stage extruder 3 is used for dispersing the foaming agent and extruding the sheet blended by the first-stage extruder 2;
the cooling and shaping machine 4 is used for cooling and shaping the extruded sheet;
the high-temperature ultraviolet drying tunnel machine 5 is used for drying the cooled and shaped sheet;
the high-temperature foaming furnace 6 is used for foaming the sheet.
Referring to fig. 1 to 3, in this embodiment, a stirring assembly is fixedly connected to a top end of the high-temperature ultraviolet drying tunnel machine 5, an ultraviolet heating plate 9 is fixedly connected to an inner wall of the high-temperature ultraviolet drying tunnel machine 5, a scavenging pump 11 is fixedly connected to a top end of the high-temperature ultraviolet drying tunnel machine 5, a scavenging pipe 12 is installed on an outer surface of the scavenging pump 11, the scavenging pipe 12 penetrates through the high-temperature ultraviolet drying tunnel machine 5, a scavenging port is formed in the top end of the high-temperature ultraviolet drying tunnel machine 5, a tail gas filtering assembly 10 is fixedly connected to a top end of the scavenging port, and tail gas generated by heating can be filtered through the arranged tail gas filtering assembly 10, so that harm of the tail gas to the environment is reduced.
In this embodiment, the stirring subassembly includes agitator motor 7, agitator motor 7 and the top fixed connection of high temperature ultraviolet drying tunnel machine 5, agitator motor 7's output fixedly connected with puddler 8, and the end of puddler 8 rotates with the interior diapire of high temperature ultraviolet drying tunnel machine 5 to be connected for the heating is more even.
In this embodiment, tail gas filter assembly 10 is including installation cover 101, the top fixed connection of installation cover 101 and high temperature ultraviolet drying tunnel machine 5, first notch 102 has been seted up on the top of installation cover 101, the surface threaded connection of installation cover 101 has fixed cover 103, the surface of fixed cover 103 is close to bottom fixedly connected with tail gas filtration casing 104, gas exchange groove 106 has been seted up on the top of tail gas filtration casing 104, detachable filter core 105 is installed to the inner wall of tail gas filtration casing 104, the surface of tail gas filtration casing 104 rotates and is connected with core changing door 107, detachable filter core 105 makes the tail gas filter effect can be better, threaded connection's fixed cover 103 can be dismantled simultaneously and change, convenient maintenance, filter core 105 is by the activated carbon layer, the limestone layer is constituteed, a tail gas for adsorbing the ultraviolet heating material and producing.
Specifically, please refer to fig. 4-6, the foaming furnace 6 includes a furnace body 201, two symmetrically disposed fixing rails 202 are fixedly connected to an inner side wall of the furnace body 201, one side of the fixing rail 202 is slidably connected with a positioning slider 301, one side of the positioning slider 301 is fixedly connected with a placing component, the inner side wall of the furnace body 201 is provided with a pressure control component, a side wall of the furnace body 201 is fixedly connected with a tail gas treatment component, a hot gas homogenizing component is fixedly connected to a position, close to a bottom end, of a side wall of the furnace body 201, and the hot gas homogenizing component can enable heating in the furnace to be more uniform.
In this embodiment, the pressure control assembly comprises a breast board 1101, the inside wall of the breast board 1101 and the furnace body 201 is connected in a rotating manner, one side of the breast board 1101 is connected with a swing rod 1201 in a rotating manner, one end of the swing rod 1201, which is far away from the breast board 1101, is connected with a pressure-bearing slider 1301 in a rotating manner, the outside wall of the furnace body 201 is fixedly connected with a sealing cover 1001, the inner wall of the sealing cover 1001 is fixedly connected with a fixing frame 1401, a pressure-bearing spring 1501 is sleeved on the outer surface of the fixing frame 1401, the pressure-bearing slider 1301 is connected with the fixing frame 1401 in a sliding manner, the pressure-bearing slider 1301 is fixedly connected with one end of the pressure-bearing spring 1501 of the pressure-bearing slider 1301, when the pressure inside the furnace body 201 is too high, the pressure pushes the breast board 1101 to rotate, and thus partial gas in the furnace body 201 can be discharged through a pressure relief pipe 1601.
In this embodiment, the tail gas treatment subassembly includes tail gas rose box 601, a lateral wall fixed connection of tail gas rose box 601 and furnace body 201, and the top fixedly connected with connecting pipe 701 of tail gas rose box 601, connecting pipe 701 and furnace body 201 intercommunication, the bottom of tail gas rose box 601 is through bleeder line 1601 and sealed cowling 1001 intercommunication, can filter the tail gas that high temperature production produced.
In this embodiment, the even subassembly of steam includes blast pump 801, and blast pump 801 and furnace body 201's inner wall fixed connection, the outer surface mounting of blast pump 801 has outlet duct 901, and outlet duct 901 runs through furnace body 201, can make the inside heating of furnace body 201 more even.
In this embodiment, place the subassembly including placing frame 401, place frame 401 and location slider 301 fixed connection, place the inner wall from the top down fixedly connected with polylith of frame 401 and place board 501, conveniently place multiple expanded material.
Specifically, the front walls of the first-stage extruder 2, the second-stage extruder 3, the cooling setting machine 4 and the high-temperature ultraviolet drying tunnel machine 5 are fixedly connected with observation windows 15, so that the internal forming effect can be observed conveniently.
Specifically, the front walls of the first-stage extruder 2, the second-stage extruder 3, the cooling setting machine 4 and the high-temperature ultraviolet drying tunnel machine 5 are all hinged with a take-out door 13; the inner walls of the first-stage extruder 2, the second-stage extruder 3, the cooling setting machine 4, the high-temperature ultraviolet drying tunnel machine 5 and the high-temperature foaming furnace 6 are fixedly connected with thermometers 14; the thermometer 14 penetrates through the first-stage extruder 2, the second-stage extruder 3, the cooling setting machine 4, the high-temperature ultraviolet drying tunnel machine 5 and the high-temperature foaming furnace 6, materials are conveniently taken out, and meanwhile the temperature condition inside is conveniently observed.
Specifically, the front wall of the furnace body 201 is rotatably connected with a fetching door 1701 through a hinge, and an object viewing window 1801 is installed on the front wall of the fetching door 1701, so that the foaming condition inside can be observed conveniently.
Specifically, the foaming temperature in the furnace body 201 is 200-300 ℃, so that the foaming effect is better.
The working principle of the production equipment for the degradable foaming material is as follows:
1. weighing PBAT, modified starch, a chain extender, a photoinitiator, a photocrosslinking agent and an antioxidant, and performing melt blending through a first-stage extruder 2 at the extrusion blending temperature of 90-180 ℃;
2. the melt blended in the step 1 is transmitted to a second-stage extruder 3, and a foaming agent is added into the second-stage extruder 3, wherein the temperature in the second-stage extruder 3 is 90-150 ℃;
3. sending the sheet extruded by the second-stage extruder 3 into a cooling and shaping machine 4 for shaping, wherein the shaping temperature is 70-130 ℃, and the shaping mode is three-roller or water tank cooling and shaping;
4. after the sheet is shaped, the sheet immediately enters a high-temperature ultraviolet drying tunnel machine 5, the ultraviolet intensity of an ultraviolet heating plate 9 is 20-400W/cm, and the temperature is 70-140 ℃; the thickness of the ultraviolet crosslinked sheet is more than or equal to 2mm, the stirring motor 7 and the scavenging pump 11 are started in the heating process, the output end of the stirring motor 7 rotates at a low speed to drive the stirring rod 8 to rotate so as to stir the material at a low speed, and the scavenging pump 11 is matched to ensure that the material is heated more uniformly and the drying effect is better;
5. and 4, immediately feeding the sheet material subjected to ultraviolet crosslinking into a high-temperature foaming furnace body 201 for foaming at the foaming temperature of 200-300 ℃ to obtain the finished foam.
In the step 1, the first-stage extruder 2 is provided with four sections, and the process temperature of each section is set to be 90-180 ℃;
further, in step 5, when foaming is performed inside the furnace body 201, when the internal pressure is too high, the internal high-pressure gas pushes the baffle 1101 to rotate, the baffle 1101 rotates the swing rod 1201, further, the pressure-bearing slide block 1301 moves and compresses the pressure-bearing spring 1501, at this time, part of the gas enters the tail gas filter tank 601 through the pressure relief pipe 1601 to be filtered and then is discharged, after the internal pressure of the furnace body 201 is reduced, the pressure-bearing spring 1501 is discharged to reversely move the pressure-bearing slide block 1301, and the baffle 1101 seals the inside of the furnace body 201.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A production facility for degradable expanded material, includes mounting panel (1), its characterized in that: the top end of the mounting plate (1) is fixedly connected with a first-stage extruder (2), a second-stage extruder (3), a cooling setting machine (4), a high-temperature ultraviolet drying tunnel machine (5) and a high-temperature foaming furnace (6) from left to right in sequence;
the first-stage extruder (2) is used for carrying out melt blending on PBAT, modified starch, a chain extender, a photoinitiator, a photocrosslinking agent and an antioxidant;
the second-stage extruder (3) is used for dispersing the foaming agent and extruding the sheet blended by the first-stage extruder (2);
the cooling setting machine (4) is used for cooling and setting the extruded sheet;
the high-temperature ultraviolet drying tunnel machine (5) is used for drying the cooled and shaped sheet;
the high-temperature foaming furnace (6) is used for foaming the sheet.
2. The production equipment for the degradable foaming material according to claim 1, wherein a stirring component is fixedly connected to the top end of the high-temperature ultraviolet drying tunnel machine (5), an ultraviolet heating plate (9) is fixedly connected to the inner wall of the high-temperature ultraviolet drying tunnel machine (5), a scavenging pump (11) is fixedly connected to the top end of the high-temperature ultraviolet drying tunnel machine (5), a scavenging pipe (12) is installed on the outer surface of the scavenging pump (11), the scavenging pipe (12) penetrates through the high-temperature ultraviolet drying tunnel machine (5), a scavenging port is formed in the top end of the high-temperature ultraviolet drying tunnel machine (5), and an exhaust gas filtering component (10) is fixedly connected to the top end of the scavenging port;
the stirring assembly comprises a stirring motor (7), the stirring motor (7) is fixedly connected with the top end of the high-temperature ultraviolet drying tunnel machine (5), the output end of the stirring motor (7) is fixedly connected with a stirring rod (8), and the tail end of the stirring rod (8) is rotatably connected with the inner bottom wall of the high-temperature ultraviolet drying tunnel machine (5);
the high-temperature foaming furnace (6) comprises a furnace body (201), two symmetrically arranged fixed rails (202) are fixedly connected to the inner side wall of the furnace body (201), one side of each fixed rail (202) is slidably connected with a positioning slide block (301), one side of each positioning slide block (301) is fixedly connected with a placing component, a pressure control component is arranged on the inner side wall of the furnace body (201), a tail gas treatment component is fixedly connected to one side wall of the furnace body (201), and a hot gas homogenizing component is fixedly connected to a position, close to the bottom end, of one side wall of the furnace body (201);
the pressure control assembly comprises a breast board (1101), the inside wall of the breast board (1101) is rotatably connected with the furnace body (201), one side of the breast board (1101) is rotatably connected with a swing rod (1201), one end, far away from the breast board (1101), of the swing rod (1201) is rotatably connected with a pressure-bearing slider (1301), the outside wall of the furnace body (201) is fixedly connected with a sealing cover (1001), the inner wall of the sealing cover (1001) is fixedly connected with a fixing frame (1401), the outer surface of the fixing frame (1401) is sleeved with a pressure-bearing spring (1501), the pressure-bearing slider (1301) is slidably connected with the fixing frame (1401), and the pressure-bearing slider (1301) is fixedly connected with one end of the pressure-bearing spring (1501).
3. The production equipment for the degradable foaming material according to claim 2, wherein the tail gas filtering component (10) comprises a mounting sleeve (101), the mounting sleeve (101) is fixedly connected with the top end of the high-temperature ultraviolet drying tunnel machine (5), a first notch (102) is formed in the top end of the mounting sleeve (101), a fixing sleeve (103) is in threaded connection with the outer surface of the mounting sleeve (101), a tail gas filtering shell (104) is fixedly connected to the outer surface of the fixing sleeve (103) close to the bottom end, an air exchanging groove (106) is formed in the top end of the tail gas filtering shell (104), a detachable filter core (105) is installed on the inner wall of the tail gas filtering shell (104), and a core exchanging door (107) is rotatably connected to the outer surface of the tail gas filtering shell (104);
the filter element (105) consists of an activated carbon layer and a limestone layer and is used for adsorbing tail gas generated by the ultraviolet heating material;
the tail gas treatment assembly comprises a tail gas filter tank (601), the tail gas filter tank (601) is fixedly connected with one side wall of the furnace body (201), the top end of the tail gas filter tank (601) is fixedly connected with a connecting pipe (701), the connecting pipe (701) is communicated with the furnace body (201), and the bottom end of the tail gas filter tank (601) is communicated with a sealing cover (1001) through a pressure relief pipe (1601); the hot gas homogenizing assembly comprises an air blowing pump (801), the air blowing pump (801) is fixedly connected with the inner wall of the furnace body (201), an air outlet pipe (901) is installed on the outer surface of the air blowing pump (801), and the air outlet pipe (901) penetrates through the furnace body (201);
the placing assembly comprises a placing frame (401), the placing frame (401) is fixedly connected with a positioning sliding block (301), and a plurality of placing plates (501) are fixedly connected with the inner wall of the placing frame (401) from top to bottom in sequence.
4. The production equipment for the degradable foaming material according to the claim 2, characterized in that the front walls of the first stage extruder (2), the second stage extruder (3), the cooling setting machine (4) and the high temperature ultraviolet drying tunnel machine (5) are all fixedly connected with an observation window (15).
5. The production equipment for the degradable foaming material according to the claim 2, characterized in that the front walls of the first stage extruder (2), the second stage extruder (3), the cooling setting machine (4) and the high temperature ultraviolet drying tunnel machine (5) are hinged with a take-out door (13); the inner walls of the first-stage extruder (2), the second-stage extruder (3), the cooling setting machine (4), the high-temperature ultraviolet drying tunnel machine (5) and the high-temperature foaming furnace (6) are fixedly connected with thermometers (14); the thermometer (14) penetrates through the first-stage extruder (2), the second-stage extruder (3), the cooling setting machine (4), the high-temperature ultraviolet drying channel machine (5) and the high-temperature foaming furnace (6).
6. The production equipment for the degradable foaming material according to the claim 2 is characterized in that the front wall of the furnace body (201) is rotatably connected with an object taking door (1701) through a hinge, and the front wall of the object taking door (1701) is provided with an object viewing window (1801).
7. The production equipment for the degradable foaming material as claimed in claim 2, wherein the foaming temperature in the furnace body (201) is 200-300 ℃.
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| CN115122563A (en) * | 2022-08-22 | 2022-09-30 | 深圳市绿自然生物降解科技有限公司 | Special equipment and process for biodegradation micro-crosslinking foaming |
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