CN211105488U - Double-screw extruder for adding powder through side feeding - Google Patents
Double-screw extruder for adding powder through side feeding Download PDFInfo
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- CN211105488U CN211105488U CN201921347115.2U CN201921347115U CN211105488U CN 211105488 U CN211105488 U CN 211105488U CN 201921347115 U CN201921347115 U CN 201921347115U CN 211105488 U CN211105488 U CN 211105488U
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Abstract
The utility model discloses a double-screw extruder for adding powder by side feeding, which comprises a fixed seat, wherein the fixed seat is provided with a speed regulating motor and a control system, and the control system is electrically connected with the speed regulating motor; the feeding device comprises a speed regulation motor, a reduction gearbox, a feeding barrel, a first feeding hopper and a feeding barrel, wherein the reduction gearbox is in transmission connection with the speed regulation motor, an output shaft of the reduction gearbox is connected with a screw group, the screw group is located in the feeding barrel and the feeding barrel, and the feeding barrel is communicated with the feeding barrel. The utility model discloses from the side feed open position of parallel double screw extruder barrel, the screw rod combination, the relevant production facility such as heating methods of feeding section position has carried out the technology and has reformed transform the upgrading combination, technology feed position is in the second section, also be the first fusing of equipment, the dispersion of powder in the resin is through three four sections melts, five sections are mixed, six sections exhaust, seven, eight sections are mixed, nine sections vacuum extraction, extrude behind ten sections compression, the material particle surface is smooth, moisture content is in 0.8 thousandths, stable performance.
Description
Technical Field
The utility model relates to a double screw extruder of powder is added to side feed belongs to chemical material manufacture equipment technical field.
Background
In the traditional powder feeding, a powder material is put into resin with mineral oil on the surface before production, so that the powder material is adhered to the surface of the resin, and then the powder material is put into parallel double screws through a feeder to be melted and granulated. The powder side feeding technology mainly realizes the equal proportion of powder and resin, reduces dust, purifies air, beautifies working environment and reduces the harm of volatile matters of additive materials (mineral oil and the like) to human bodies in later use.
Along with the continuous development of science and technology, powder feeding requires that additives (mineral oil) are lower and higher, the powder adding proportion is higher and higher, different equipment manufacturers release side feeding systems, but the feeding position is in the 5 th section of a machine barrel, and the powder is not uniformly dispersed; or the feeding is at the first section, and when the powder and the particles are compressed by the screw, the powder material is seriously returned, so that the powder accumulation at the feeding port is obvious, the powder proportion is not uniform, and the fluctuation of the current of the main machine is large (20%). The feeding position of the side feeding unit is located at the 5 th-6 th section of the machine barrel, the length-diameter ratio must be increased to improve the dispersion uniformity of the powder material, and if a parallel double-screw extruder with the length-diameter ratio of 40 is configured in a standard mode, the surface of the material is rough, the powder material is agglomerated, and the impact performance is 5-10% lower than that of the traditional process. The moisture content of plastic particles cut into granules when the rough surface passes through the water cooling tank is 5 per mill higher than that of the traditional process.
The feeding position is in a side feeding unit of a first section (a main feeding section) of the machine barrel, powder and particles return after partial powder materials are compressed in a second section and a third section of the screw, the powder and the particles return gradually at a main material port, and the powder and the particles are brought into the machine barrel along with the materials when the temperature reaches a certain value, so that the torsion of the equipment is extremely large, the current is quickly fed to the upper part of the body, even the motor load is overloaded, the alarm is stopped, and the current fluctuation of a main driving motor is +/-40A. Therefore, the proportion of the powder and the resin deviates from the standard, and the performance of the finished product is unstable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a double screw extruder of powder is added to side feed, from the side feed open position of parallel double screw extruder barrel, the screw rod combination, the relevant production facility such as heating methods of feeding section position has carried out the technology and has reformed transform the upgrading combination, technology feed position is in the second section, also be the first fusing of equipment, the dispersion of powder in the resin is through three four sections melts, five sections are mixed, six sections exhaust, seven, eight sections are mixed, nine sections vacuum extraction, extrude after ten sections compression, material particle smooth surface, moisture content is in 0.8 thousandths, stable performance.
In order to solve the technical problem, the utility model discloses a following technical scheme:
A double-screw extruder for adding powder by side feeding comprises a fixed seat, wherein a speed regulating motor and a control system are arranged on the fixed seat, and the control system is electrically connected with the speed regulating motor; the speed-regulating motor is connected with the speed-regulating motor in a transmission way, an output shaft of the speed-regulating motor is connected with a screw group, the screw group is positioned in the feeding cylinder and the conveying cylinder, and the conveying cylinder is communicated with the feeding cylinder; the first feeding hopper is positioned above the feeding barrel, and the first feeding hopper is communicated with the feeding barrel; the conveying cylinder is composed of a first heating section, a second heating section, a third heating section, a fourth heating section, a fifth heating section, a sixth heating section, a seventh heating section, an eighth heating section, a ninth heating section and a tenth heating section which are sequentially communicated, the first heating section is communicated with the conveying cylinder, an independent heating device is arranged in each heating section, the heating devices are electrically connected with the control system, and the second heating section is communicated with a second hopper.
In the double-screw extruder for adding powder by side feeding, the second feeding hopper comprises a conical hopper, a first driving motor, a first feeding pipe, a vertical material pipe, a second driving motor and a second feeding pipe, the first feeding pipe is communicated with the bottom of the conical hopper, a first feeding screw rod is arranged in the first feeding pipe, and the first feeding screw rod is connected with an output shaft of the first driving motor; the upper end of the vertical material pipe is communicated with the first feeding pipe, the lower end of the vertical material pipe is communicated with the second feeding pipe, a second feeding screw rod is arranged in the second feeding pipe, the second feeding screw rod is connected with an output shaft of a second driving motor, and the second feeding pipe is communicated with the second heating section.
In the double-screw extruder for adding powder through side feeding, the top of the conical hopper is provided with the third driving motor, the output shaft of the third driving motor is connected with the stirring blade, and the stirring blade is positioned in the conical hopper.
The use method of the double-screw extruder with the side feeding and the powder adding comprises the following steps: adding the raw materials into a double-screw extruder according to the following weight percentage, wherein the raw materials comprise 81-85% of polypropylene, 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator; wherein 81-85% of polypropylene is added into the first heating section 6 through the first charging hopper 4, and 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator are added into the second heating section through the second charging hopper; the heating temperature of the first heating section is controlled to be 205 +/-5 ℃, the heating temperature of the second heating section is controlled to be 205 +/-5 ℃, the heating temperature of the third heating section is controlled to be 205 +/-5 ℃, the heating temperature of the fourth heating section is 205 +/-5 ℃, the heating temperature of the fifth heating section is 200 +/-5 ℃, the heating temperature of the sixth heating section is 20 +/-5 ℃, the heating temperature of the seventh heating section is 200 +/-5 ℃, the heating temperature of the eighth heating section is 200 +/-5 ℃, the heating temperature of the ninth heating section is 200 +/-5 ℃, and the heating temperature of the tenth heating section is 205 +/-5 ℃.
The use method of the double-screw extruder with the side feeding and the powder adding comprises the following steps: adding the raw materials into a double-screw extruder according to the following weight percentage, wherein the raw materials comprise 81-85% of polypropylene, 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator; wherein 81-85% of polypropylene is added into the first heating section through a first charging hopper, and 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator are added into the second heating section through a second charging hopper; the heating temperature of the first heating section is controlled to be 200 ℃, the heating temperature of the second heating section is controlled to be 200 ℃, the heating temperature of the third heating section is controlled to be 200 ℃, the heating temperature of the fourth heating section is 200 ℃, the heating temperature of the fifth heating section is 195 ℃, the heating temperature of the sixth heating section is 15 ℃, the heating temperature of the seventh heating section is 198 ℃, the heating temperature of the eighth heating section is 195 ℃, the heating temperature of the ninth heating section is 195 ℃, and the heating temperature of the tenth heating section is 195 ℃.
The use method of the double-screw extruder with the side feeding and the powder adding comprises the following steps: adding the raw materials into a double-screw extruder according to the following weight percentage, wherein the raw materials comprise 81-85% of polypropylene, 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator; wherein 81-85% of polypropylene is added into the first heating section through a first charging hopper, and 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator are added into the second heating section through a second charging hopper; the heating temperature of the first heating section is controlled to be 210 ℃, the heating temperature of the second heating section is controlled to be 210 ℃, the heating temperature of the third heating section is controlled to be 210 ℃, the heating temperature of the fourth heating section is 210 ℃, the heating temperature of the fifth heating section is 205 ℃, the heating temperature of the sixth heating section is 25 ℃, the heating temperature of the seventh heating section is 205 ℃, the heating temperature of the eighth heating section is 205 ℃, the heating temperature of the ninth heating section is 205 ℃, and the heating temperature of the tenth heating section is 210 ℃.
The use method of the double-screw extruder with the side feeding and the powder adding comprises the following steps: adding the raw materials into a double-screw extruder according to the following weight percentage, wherein the raw materials comprise 81-85% of polypropylene, 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator; wherein 81-85% of polypropylene is added into the first heating section 6 through the first charging hopper 4, and 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator are added into the second heating section through the second charging hopper; the heating temperature of the first heating section is controlled to be 205 ℃, the heating temperature of the second heating section is controlled to be 205 ℃, the heating temperature of the third heating section is controlled to be 205 ℃, the heating temperature of the fourth heating section is 205 ℃, the heating temperature of the fifth heating section is 200 ℃, the heating temperature of the sixth heating section is 20 ℃, the heating temperature of the seventh heating section is 200 ℃, the heating temperature of the eighth heating section is 200 ℃, the heating temperature of the ninth heating section is 200 ℃, and the heating temperature of the tenth heating section is 205 ℃.
Compared with the prior art, the utility model discloses from the side feed open position of parallel double screw extruder barrel, the screw rod combination, the relevant production facility such as heating methods of feeding section position has carried out the technology and has reformed transform the upgrading combination, technology feed position is in the second section, also be the first fusing of equipment, the dispersion of powder in the resin is through three four sections melts, five sections are mixed, six sections exhaust, seven, eight sections are mixed, nine sections vacuum extraction, extrude after ten sections compression, the material particle surface is smooth, moisture content is in 0.4 thousandths, stable performance.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
Fig. 2 is a schematic view of the structure of the second hopper.
Reference numerals: 1-speed regulating motor, 2-reduction gearbox, 3-feeding barrel, 4-first feeding hopper, 5-control system, 6-first heating section, 7-second feeding hopper, 8-second heating section, 9-third heating section, 10-fourth heating section, 11-fifth heating section, 12-sixth heating section, 13-seventh heating section, 14-eighth heating section, 15-ninth heating section, 16-tenth heating section, 17-second feeding pipe, 18-first driving motor, 19-conical hopper, 20-third driving motor, 21-first feeding pipe, 22-second driving motor and 23-vertical feeding pipe.
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Detailed Description
Example 2: a double-screw extruder for adding powder by side feeding comprises a fixed seat, wherein a speed regulating motor 1 and a control system 5 are arranged on the fixed seat, and the control system 5 is electrically connected with the speed regulating motor 1; the device comprises a speed regulating motor 1, a reduction box 2, a feeding barrel 3, a first feeding hopper 4 and a feeding barrel, wherein the reduction box 2 is in transmission connection with the speed regulating motor 1, an output shaft of the reduction box 2 is connected with a screw group, the screw group is positioned in the feeding barrel 3 and the feeding barrel, and the feeding barrel is communicated with the feeding barrel 3; the first hopper 4 is positioned above the feeding barrel 3, and the first hopper 4 is communicated with the feeding barrel 3; the conveying cylinder is composed of a first heating section 6, a second heating section 8, a third heating section 9, a fourth heating section 10, a fifth heating section 11, a sixth heating section 12, a seventh heating section 13, an eighth heating section 14, a ninth heating section 15 and a tenth heating section 16 which are sequentially communicated, the first heating section 6 is communicated with the conveying cylinder 3, an independent heating device is arranged in each heating section, the heating devices are all electrically connected with the control system 5, and the second heating section 8 is communicated with a second hopper 7.
The second feeding hopper 7 comprises a conical hopper 19, a first driving motor 18, a first feeding pipe 21, a vertical material pipe 23, a second driving motor 22 and a second feeding pipe 17, the first feeding pipe 21 is communicated with the bottom of the conical hopper 19, a first feeding screw rod is arranged in the first feeding pipe 21, and the first feeding screw rod is connected with an output shaft of the first driving motor 18; the upper end of the vertical material pipe 23 is communicated with the first feeding pipe 21, the lower end of the vertical material pipe 23 is communicated with the second feeding pipe 17, a second feeding screw rod is arranged in the second feeding pipe 17, the second feeding screw rod is connected with an output shaft of the second driving motor 22, and the second feeding pipe 17 is communicated with the second heating section 8. The top of the conical hopper 19 is provided with a third driving motor 20, an output shaft of the third driving motor 20 is connected with a stirring blade, and the stirring blade is positioned in the conical hopper 19.
The use method 1 of the side-feeding powder-adding twin-screw extruder in the embodiment 2 comprises the following steps: adding the raw materials into a double-screw extruder according to the following weight percentage, wherein the raw materials comprise 81-85% of polypropylene, 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator; wherein 81-85% of polypropylene is added into the first heating section 6 through the first feeding hopper 4, and 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator are added into the second heating section 8 through the second feeding hopper 7; the first heating section 6 is controlled to be unheated, the second heating section 8 is controlled to be heated to be 200 ℃, the third heating section 9 is controlled to be heated to be 200 ℃, the fourth heating section 10 is controlled to be heated to be 200 ℃, the fifth heating section 11 is controlled to be heated to be 195 ℃, the sixth heating section 12 is controlled to be heated to be 15 ℃, the seventh heating section 13 is controlled to be heated to be 198 ℃, the eighth heating section 14 is controlled to be heated to be 195 ℃, the ninth heating section 15 is controlled to be heated to be 195 ℃, and the tenth heating section 16 is controlled to be heated to be 195 ℃.
The use method 2 of the side-feeding powder-adding twin-screw extruder in the embodiment 2 comprises the following steps: adding the raw materials into a double-screw extruder according to the following weight percentage, wherein the raw materials comprise 81-85% of polypropylene, 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator; wherein 81-85% of polypropylene is added into the first heating section 6 through the first feeding hopper 4, and 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator are added into the second heating section 8 through the second feeding hopper 7; the first heating section 6 is controlled to be unheated, the second heating section 8 is controlled to be at 210 ℃, the third heating section 9 is controlled to be at 210 ℃, the fourth heating section 10 is controlled to be at 210 ℃, the fifth heating section 11 is controlled to be at 205 ℃, the sixth heating section 12 is controlled to be at 25 ℃, the seventh heating section 13 is controlled to be at 205 ℃, the eighth heating section 14 is controlled to be at 205 ℃, the ninth heating section 15 is controlled to be at 205 ℃, and the tenth heating section 16 is controlled to be at 210 ℃.
The use method 3 of the side-feeding powder-adding twin-screw extruder in the embodiment 2 comprises the following steps: adding the raw materials into a double-screw extruder according to the following weight percentage, wherein the raw materials comprise 81-85% of polypropylene, 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator; wherein 81-85% of polypropylene is added into the first heating section 6 through the first feeding hopper 4, and 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator are added into the second heating section 8 through the second feeding hopper 7; the first heating section 6 is controlled to be unheated, the second heating section 8 is controlled to be heated at 205 ℃, the third heating section 9 is controlled to be heated at 205 ℃, the fourth heating section 10 is controlled to be heated at 205 ℃, the fifth heating section 11 is controlled to be heated at 200 ℃, the sixth heating section 12 is controlled to be heated at 20 ℃, the seventh heating section 13 is controlled to be heated at 200 ℃, the eighth heating section 14 is controlled to be heated at 200 ℃, the ninth heating section 15 is controlled to be heated at 200 ℃, and the tenth heating section 16 is controlled to be heated at 205 ℃.
The use method 4 of the side-feeding powder-adding twin-screw extruder in the embodiment 2 comprises the following steps: adding the raw materials into a double-screw extruder according to the following weight percentage, wherein the raw materials comprise 81-85% of polypropylene, 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator; wherein 81-85% of polypropylene is added into the first heating section 6 through the first feeding hopper 4, and 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator are added into the second heating section 8 through the second feeding hopper 7; the heating temperature of the first heating section 6 is controlled to be 203 ℃, the heating temperature of the second heating section 8 is controlled to be 203 ℃, the heating temperature of the third heating section 9 is controlled to be 203 ℃, the heating temperature of the fourth heating section 10 is 202 ℃, the heating temperature of the fifth heating section 11 is 201 ℃, the heating temperature of the sixth heating section 12 is 21 ℃, the heating temperature of the seventh heating section 13 is 207 ℃, the heating temperature of the eighth heating section 14 is 205 ℃, the heating temperature of the ninth heating section 15 is 206 ℃, and the heating temperature of the tenth heating section 16 is 202 ℃.
The use method 5 of the side-feeding powder-adding twin-screw extruder in the embodiment 2 comprises the following steps: adding the raw materials into a double-screw extruder according to the following weight percentage, wherein the raw materials comprise 81-85% of polypropylene, 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator; wherein 81-85% of polypropylene is added into the first heating section 6 through the first feeding hopper 4, and 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator are added into the second heating section 8 through the second feeding hopper 7; the heating temperature of the first heating section 6 is controlled to be 203 ℃, the heating temperature of the second heating section 8 is controlled to be 203 ℃, the heating temperature of the third heating section 9 is controlled to be 203 ℃, the heating temperature of the fourth heating section 10 is 201 ℃, the heating temperature of the fifth heating section 11 is 202 ℃, the heating temperature of the sixth heating section 12 is 23 ℃, the heating temperature of the seventh heating section 13 is 204 ℃, the heating temperature of the eighth heating section 14 is 205 ℃, the heating temperature of the ninth heating section 15 is 204 ℃, and the heating temperature of the tenth heating section 16 is 203 ℃.
The use method 6 of the side-feeding powder-adding twin-screw extruder in the embodiment 2 comprises the following steps: adding the raw materials into a double-screw extruder according to the following weight percentage, wherein the raw materials comprise 81-85% of polypropylene, 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator; wherein 81-85% of polypropylene is added into the first heating section 6 through the first feeding hopper 4, and 3-8% of unsaturated epoxy monomer, 11-13% of talcum powder, 7-13% of toughening agent, 0.5-0.9% of coupling agent and 0.1-0.3% of initiator are added into the second heating section 8 through the second feeding hopper 7; the heating temperature of the first heating section 6 is controlled to be 202 ℃, the heating temperature of the second heating section 8 is controlled to be 202 ℃, the heating temperature of the third heating section 9 is controlled to be 202 ℃, the heating temperature of the fourth heating section 10 is 200 ℃, the heating temperature of the fifth heating section 11 is 201 ℃, the heating temperature of the sixth heating section 12 is 22 ℃, the heating temperature of the seventh heating section 13 is 203 ℃, the heating temperature of the eighth heating section 14 is 204 ℃, the heating temperature of the ninth heating section 15 is 203 ℃, and the heating temperature of the tenth heating section 16 is 202 ℃.
The utility model discloses well buncher's electric current sets up to 120A, adopts 65B type twin-screw to extrude the unit, draw ratio: 40:1, controlling the temperature of cooling water in a water-cooling brace granulation process at 50-60 ℃, and cooling length: and cooling the whole water tank length. Storing the granulated product in a storage bin for 2 hours, and naturally cooling; directly injection-molding into a sample plate and a standard sample strip by using an injection molding machine, processing at 23 +/-2 ℃ and 50% humidity in a standard environment for 48h, and then testing. After the product is cooled for 4 hours in a natural state, a moisture tester with the moisture content of 1 per mill g is used for testing the moisture content.
The results of the physical property tests (average values) are shown in the following table:
| Detecting items | Tensile strength | Elongation at break | Bending strength | Flexural modulus | Notched impact strength | Unnotched impact strength |
| The process | 22.6MPa | 161％ | 19MPa | 1252MPa | 10.5 | 68.1 |
| Original process | 20.1MPa | 140％ | 17.5MPa | 1095MPa | 8.9 | 56.2 |
The experiment is the result of random spot check for producing PPT3010 tons, and the original process is the sample detection result of each batch of original products.
Moisture test results:
| Number of tests | For the first time | For the second time | The third time | Fourth time | Fifth time | The sixth time |
| Test results | 0.38‰ | 0.39‰ | 0.39‰ | 0.38‰ | 0.38‰ | 0.38‰ |
Claims (3)
1. The double-screw extruder for adding powder through side feeding is characterized by comprising a fixed seat, wherein a speed regulating motor (1) and a control system (5) are arranged on the fixed seat, and the control system (5) is electrically connected with the speed regulating motor (1); the device is characterized by also comprising a reduction box (2), a feeding barrel (3), a first feeding hopper (4) and a feeding barrel, wherein the reduction box (2) is in transmission connection with the speed regulating motor (1), an output shaft of the reduction box (2) is connected with a screw group, the screw group is positioned in the feeding barrel (3) and the feeding barrel, and the feeding barrel is communicated with the feeding barrel (3); the first feeding hopper (4) is positioned above the feeding barrel (3), and the first feeding hopper (4) is communicated with the feeding barrel (3); the conveying cylinder is composed of a first heating section (6), a second heating section (8), a third heating section (9), a fourth heating section (10), a fifth heating section (11), a sixth heating section (12), a seventh heating section (13), an eighth heating section (14), a ninth heating section (15) and a tenth heating section (16) which are sequentially communicated, the first heating section (6) is communicated with the conveying cylinder (3), an independent heating device is arranged in each heating section, the heating devices are electrically connected with a control system (5), and the second heating section (8) is communicated with a second feeding hopper (7).
2. The double-screw extruder for adding powder through side feeding is characterized in that the second feeding hopper (7) comprises a conical hopper (19), a first driving motor (18), a first feeding pipe (21), a vertical material pipe (23), a second driving motor (22) and a second feeding pipe (17), the first feeding pipe (21) is communicated with the bottom of the conical hopper (19), a first feeding screw rod is arranged in the first feeding pipe (21), and the first feeding screw rod is connected with an output shaft of the first driving motor (18); the upper end of the vertical material pipe (23) is communicated with the first feeding pipe (21), the lower end of the vertical material pipe (23) is communicated with the second feeding pipe (17), a second feeding screw rod is arranged in the second feeding pipe (17), the second feeding screw rod is connected with an output shaft of the second driving motor (22), and the second feeding pipe (17) is communicated with the second heating section (8).
3. A side-feeding powder adding twin-screw extruder as claimed in claim 2, wherein the top of the conical hopper (19) is provided with a third driving motor (20), the output shaft of the third driving motor (20) is connected with a stirring blade, and the stirring blade is positioned in the conical hopper (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921347115.2U CN211105488U (en) | 2019-08-19 | 2019-08-19 | Double-screw extruder for adding powder through side feeding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921347115.2U CN211105488U (en) | 2019-08-19 | 2019-08-19 | Double-screw extruder for adding powder through side feeding |
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| Publication Number | Publication Date |
|---|---|
| CN211105488U true CN211105488U (en) | 2020-07-28 |
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| CN201921347115.2U Expired - Fee Related CN211105488U (en) | 2019-08-19 | 2019-08-19 | Double-screw extruder for adding powder through side feeding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115323501A (en) * | 2022-06-30 | 2022-11-11 | 武汉纺织大学 | Film forming evaporator and method for processing Lyocell fiber spinning solution |
-
2019
- 2019-08-19 CN CN201921347115.2U patent/CN211105488U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115323501A (en) * | 2022-06-30 | 2022-11-11 | 武汉纺织大学 | Film forming evaporator and method for processing Lyocell fiber spinning solution |
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