CN210211292U - Backflushing filtering single-screw extruder - Google Patents
Backflushing filtering single-screw extruder Download PDFInfo
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- CN210211292U CN210211292U CN201920728197.9U CN201920728197U CN210211292U CN 210211292 U CN210211292 U CN 210211292U CN 201920728197 U CN201920728197 U CN 201920728197U CN 210211292 U CN210211292 U CN 210211292U
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Abstract
The utility model discloses a backflushing filtering single screw extruder, which comprises a frame, a power device, a transmission device, an extruder screw cylinder, a granule cylinder, an extruder screw, a backflushing device, a nose filter, a PLC (programmable logic controller), a dust remover, a fan, a transmission case and an electric cabinet; the machine frame is fixed on the ground, and the screw cylinder of the extruder is horizontally fixed on the machine frame; the pellet cylinder is fixed above the frame, a feed inlet and a dust outlet are formed in the pellet cylinder, the lower part of the pellet cylinder is communicated with the rear part of the screw cylinder of the extruder, a feed controller is connected to the outside of the pellet cylinder, the dust outlet is connected with the dust remover through a dust conveying channel, and a fan is connected above the dust remover; the PLC controller is respectively communicated with the power device, the transmission case, the electric cabinet and the feeding controller through circuits. The utility model discloses a recoil filtration single screw extruder can realize secondary filter, has the back flush function, and it is low to trade the net frequency, and filter fineness is high, and operating strength is low, and product quality is stable, and use cost is low.
Description
Technical Field
The utility model relates to the field of machining, in particular to recoil filtration single screw extruder.
Background
In the process of recycling and processing waste plastics, the waste plastics contain a large amount of fine impurities such as paper scraps, wood chips, aluminum foils, sand stones, iron scraps and the like, so that the filter screen changing interval time is short, the operation is frequent, the filter effect is not ideal in the production process, and the unfavorable situations such as low production efficiency, low product quality, limited application range and the like of waste plastics recycling are further caused.
At present, the extruder which is manufactured abroad and can meet the use requirement of the waste plastic recycling process has high cost and high price, and is not suitable for general popularization; the domestic extruder used in the field of waste plastic recycling is mainly a second-order extruder, namely a plate-type or column-type filter is respectively arranged at the head parts of the first-order extruder and the second-order extruder, so that the extruder has no back washing function, and has the defects of high net changing frequency, poor filtering effect, high labor intensity and the like.
A backflushing filtration single screw extruder with high filtration precision, low operation intensity, more stable product quality and low use cost is needed to solve the technical problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a recoil filtration single screw extruder. The utility model discloses a recoil filtration single screw extruder can realize secondary filter, has the back flush function, and it is low to trade the net frequency, and filter fineness is high, and operating strength is low, and product quality is stable, and use cost is low.
The utility model discloses a solve above-mentioned technical problem through following technical scheme:
the utility model provides a backflushing filtering single screw extruder, which comprises a frame, a power device, a transmission device, an extruder screw cylinder, a granule cylinder, an extruder screw, a backflushing device, a nose filter, a PLC controller, a dust remover, a fan, a transmission case and an electric cabinet; the rack is fixed on the ground, and the screw cylinder of the extruder is horizontally fixed on the rack; the pellet cylinder is fixed above the frame, a feed inlet and a dust outlet are formed in the pellet cylinder, the lower part of the pellet cylinder is communicated with the rear part of the extruder screw cylinder, a feed controller is connected to the outside of the pellet cylinder, the dust outlet is connected with the dust remover through a dust conveying channel, and the fan is connected above the dust remover; the transmission case is fixed between the transmission device and the extruder screw barrel; the extruder screw is transversely fixed in a cavity of the extruder screw barrel; the back washing device is fixed in the middle of the screw barrel of the extruder, the back washing device is vertical to the screw barrel of the extruder, and the screw rod of the extruder penetrates through the center of the back washing device; the tail end of the extruder screw is connected with the transmission case; the transmission case is connected to the power device through a transmission device; the extruder screw comprises a first threaded section, a non-threaded section and a second threaded section; the part of the back washing device connected with the screw barrel of the extruder forms a connector, and the thread-free section is correspondingly arranged at the connector; the front end of the screw barrel of the extruder is connected with the machine head filter, and the machine head filter is connected with a die head outlet; the PLC is fixed outside the screw barrel of the extruder and is respectively communicated with the power device, the transmission case, the electric cabinet and the feeding controller through circuits.
The utility model discloses in, the frame does the support component of recoil filtration single screw extruder is used for the installation other spare parts of recoil filtration single screw extruder.
In the utility model, the power device is used for providing power for the backflushing filtering single-screw extruder;
preferably, the power device is an electric motor.
In the utility model, the transmission device is used for transmitting power;
preferably, the transmission device is a transmission shaft.
The utility model discloses in, it is fixed that electric cabinet is used for electrical protection and control element's installation, electric cabinet's structure is this field conventionality.
In the utility model, the extruder screw cylinder is a main body component of the backflushing filtering single screw extruder and is used for melting and filtering plastics;
preferably, the extruder screw cylinder is of a two-stage type, and the front end and the rear end of the extruder screw cylinder are communicated with the backwashing device through screws;
preferably, an extruder melt pressure sensor is installed inside the extruder screw barrel, the extruder melt pressure sensor is installed on the inner wall of the extruder screw barrel at the feed inlet of the backwashing device, the extruder melt pressure sensor is connected with the PLC through a circuit, and the detection range of the extruder melt pressure sensor is 0-35 MPa.
In the utility model, the pellet cylinder is used for feeding and realizing preliminary drying and dust removal of the plastic to be processed;
preferably, an auxiliary material inlet is formed above the granule cylinder, and the auxiliary material inlet is connected with a color master feeder and is used for supplementing auxiliary materials;
preferably, an auxiliary feeding port is formed above the pellet cylinder, and the auxiliary feeding port is connected with a spiral feeding machine for realizing automatic feeding.
In the utility model, the extruder screw is used for realizing material conveying and dispersing;
preferably, the length-diameter ratio of the extruder screw is (35-50): 1.
in the utility model, the back washing device is used for realizing automatic back washing and filtering of the molten plastic so as to reduce the labor intensity of operators;
preferably, the backwashing device is a double-station double-plunger type backwashing filter.
In the utility model, the machine head filter is used for realizing the secondary filtration of the molten plastic, so as to extrude a higher-quality product and reduce the material waste caused by changing a broken bar net;
preferably, the handpiece filter is a dual plunger filter.
The utility model discloses in, the PLC controller is used for realizing the operation control to whole recoil filtration single screw extruder, the PLC controller is the conventionality in this field.
The utility model discloses in, the dust remover is used for detaching the preliminary dust that produces and basic in-process production of the plastics of treating processing, the structure of dust remover is this field conventionality.
The utility model discloses in, the transmission case is used for realizing the transmission of extruder power, the structure of transmission case is this field conventionality.
The utility model discloses a recoil filtration single screw extruder's operation flow does: the material to be processed enters the pellet cylinder from a feed inlet of the pellet cylinder, the pellet is processed, the material enters the screw cylinder of the extruder, the back washing device is positioned in the middle of the back washing filtering single-screw extruder, the extruder screw forces the material melt to leave the screw cylinder of the extruder at the joint of the back washing device and enter the back washing device for back washing filtering, and the material melt enters the screw cylinder of the extruder after passing through the back washing device and is conveyed to the machine head filter for secondary filtering.
The utility model discloses an actively advance the effect: the utility model discloses a recoil filtration single screw extruder can realize secondary filter, has the back flush function, and it is low to trade the net frequency, and filter fineness is high, and operating strength is low, and product quality is stable, and use cost is low.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a backflushing filtration single screw extruder according to an embodiment of the present invention.
Description of reference numerals:
1. a frame;
2. a pellet cylinder;
3. an extruder barrel;
4. a power plant;
5. a transmission device;
6. a transmission case;
7. a backwashing device;
8. a PLC controller;
9. a handpiece filter;
10. an extruder screw;
11. a die head outlet;
12. a dust remover;
13. a fan;
14. a dust conveying channel;
15. a feed inlet;
16. a color master feeder;
17. a feed controller;
18. an electric cabinet.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, the present embodiment provides a backflushing filtering single-screw extruder, which includes a frame 1, a power device 4, a transmission device 5, an extruder screw barrel 3, a pellet barrel 2, an extruder screw 10, a backflushing device 7, a head filter 9, a PLC controller 8, a dust remover 12, a fan 13, an electric cabinet 18, and a transmission case 6; the machine frame 1 is fixed on the ground, and the screw cylinder 3 of the extruder is horizontally fixed on the machine frame 1; the pellet cylinder 2 is fixed above the frame 1, a feed inlet 15 and a dust outlet are arranged on the pellet cylinder 2, the lower part of the pellet cylinder 2 is communicated with the rear part of the extruder screw cylinder 3, the outer part of the pellet cylinder 2 is connected with a feed controller 17, the dust outlet is connected with a dust remover 12 through a dust conveying channel 14, and a fan 13 is connected above the dust remover 12; the transmission case 6 is fixed between the transmission device 5 and the extruder screw barrel 3; the extruder screw 10 is transversely fixed in the cavity of the extruder screw barrel 3; the back washing device 7 is fixed in the middle of the screw barrel 3 of the extruder, the back washing device 7 is vertical to the screw barrel 3 of the extruder, and the screw 10 of the extruder penetrates through the center of the back washing device 7; the filter 9 is fixed at the front end of the screw barrel 3 of the extruder, and the tail end of a screw 10 of the extruder is connected with the power device 4 through the transmission device 5; the extruder screw 10 comprises a first threaded section, a non-threaded section and a second threaded section; the part of the back washing device 7 connected with the screw barrel 3 of the extruder forms a connector, and the unthreaded section is correspondingly arranged at the connector; the front end of the screw barrel 3 of the extruder is connected with a machine head filter 9, and the machine head filter 9 is connected with a die head outlet 11; the PLC controller 8 is fixed outside the extruder screw barrel 3, and the PLC controller 8 is respectively communicated with the power device 4, the transmission case 6, the electric cabinet 18 and the feeding controller 17 through circuits.
In this embodiment, the frame 1 is a supporting member of the backflushing filtration single screw extruder and is used for mounting other parts of the backflushing filtration single screw extruder.
In this embodiment, the power device 4 is used for providing power for the backflushing filtration single screw extruder, and the power device 4 is a motor.
In the present embodiment, the transmission device 5 is used for transmitting power, and the transmission device 5 is a transmission shaft.
In this embodiment, the extruder barrel 3 is a main body part of a backflushing filtration single screw extruder and is used for melting and filtering plastics, the extruder barrel 3 is of a two-stage type, and the front end and the rear end of the extruder barrel 3 are communicated with a backflushing device 7 through screws.
In this embodiment, a granule section of thick bamboo 2 is used for feeding in raw material and realizes treating the prefilter of processing plastics, and the auxiliary material entry has been seted up to the top of a granule section of thick bamboo 2, and the auxiliary material entry is connected with look female feeder 16 for supply the auxiliary material.
In this embodiment, the extruder screw 10 is used to realize melting and heating and stir the plastic to be processed, and the length-diameter ratio of the extruder screw 10 is 35: 1.
in this embodiment, the backwashing device 7 is used for automatically backwashing and filtering the molten plastic so as to reduce the labor intensity of the operator; the backwashing device 7 is a double-station double-plunger type backwashing filter.
In this embodiment, the head filter 9 is used to perform a secondary filtration of the molten plastic in order to extrude a higher quality product, and the filter 9 is a dual plunger filter.
In this embodiment, the PLC controller 8 is configured to control the operation of the entire backflushing filtration single screw extruder.
In this embodiment, the dust collector 12 is used to remove dust generated primarily from the plastic to be processed and generated during the basic process.
The operation flow of the backflushing filtration single-screw extruder in the embodiment is as follows: the material to be processed enters the pellet cylinder from a feed inlet of the pellet cylinder, the pellet is processed, the material enters the screw cylinder of the extruder, the back washing device is positioned in the middle of the back washing filtering single-screw extruder, the extruder screw forces the material melt to leave the screw cylinder of the extruder at the joint of the back washing device and enter the back washing device for back washing filtering, and the material melt enters the screw cylinder of the extruder after passing through the back washing device and is conveyed to the machine head filter for secondary filtering.
The back-flushing filtering single-screw extruder can realize secondary filtering, has a back-flushing function, and is low in net changing frequency, high in filtering precision, low in operation strength, stable in product quality and low in use cost.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The back-flushing filtering single-screw extruder is characterized by comprising a rack, a power device, a transmission device, an extruder screw cylinder, a granule cylinder, an extruder screw, a back-flushing device, a machine head filter, a PLC (programmable logic controller), a dust remover, a fan, a transmission box and an electric cabinet; the rack is fixed on the ground, and the screw cylinder of the extruder is horizontally fixed on the rack; the pellet cylinder is fixed above the frame, a feed inlet and a dust outlet are formed in the pellet cylinder, the lower part of the pellet cylinder is communicated with the rear part of the extruder screw cylinder, a feed controller is connected to the outside of the pellet cylinder, the dust outlet is connected with the dust remover through a dust conveying channel, and the fan is connected above the dust remover; the transmission case is fixed between the transmission device and the extruder screw barrel; the extruder screw is transversely fixed in a cavity of the extruder screw barrel; the back washing device is fixed in the middle of the screw barrel of the extruder, the back washing device is vertical to the screw barrel of the extruder, and the screw rod of the extruder penetrates through the center of the back washing device; the tail end of the extruder screw is connected with the transmission case; the transmission case is connected to the power device through a transmission device; the extruder screw comprises a first threaded section, a non-threaded section and a second threaded section; the part of the back washing device connected with the screw barrel of the extruder forms a connector, and the thread-free section is correspondingly arranged at the connector; the front end of the screw barrel of the extruder is connected with the machine head filter, and the machine head filter is connected with a die head outlet; the PLC is fixed outside the screw barrel of the extruder and is respectively communicated with the power device, the transmission case, the electric cabinet and the feeding controller through circuits.
2. The backflushing filtration single screw extruder according to claim 1 wherein said power means is an electric motor.
3. The backflushing filtration single screw extruder according to claim 1 wherein said drive means is a drive shaft.
4. The backflushing filtration single screw extruder according to claim 1 wherein said extruder barrel is two-sectioned, the front end and the rear end of said extruder barrel being in communication with said backflushing means by screws.
5. The single screw extruder of claim 1, wherein an extruder melt pressure sensor is mounted inside the extruder barrel, the extruder melt pressure sensor is mounted on the inner wall of the extruder barrel at the feed inlet of the backwashing device, the extruder melt pressure sensor is connected with the PLC through a circuit, and the detection range of the extruder melt pressure sensor is 0-35 MPa.
6. The backflushing filtration single screw extruder according to claim 1 wherein an auxiliary material inlet is provided above the pellet cylinder, the auxiliary material inlet being connected to a color masterbatch feeder.
7. The single screw extruder of claim 1, wherein an auxiliary feed port is provided above the pellet cylinder, and the auxiliary feed port is connected to a screw feeder.
8. The backflushing filtration single screw extruder according to claim 1, wherein the upper diameter ratio of the extruder screw is (35-50): 1.
9. the backflushing filtration single screw extruder of claim 1 wherein said backflushing means is a double ram backflushing filter.
10. The backflushing filtration single screw extruder of claim 1 wherein said filter is a double ram filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920728197.9U CN210211292U (en) | 2019-05-21 | 2019-05-21 | Backflushing filtering single-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920728197.9U CN210211292U (en) | 2019-05-21 | 2019-05-21 | Backflushing filtering single-screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210211292U true CN210211292U (en) | 2020-03-31 |
Family
ID=69926783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920728197.9U Active CN210211292U (en) | 2019-05-21 | 2019-05-21 | Backflushing filtering single-screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210211292U (en) |
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2019
- 2019-05-21 CN CN201920728197.9U patent/CN210211292U/en active Active
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