CN217704614U - Double-screw extruder with exhaust gas treatment device - Google Patents
Double-screw extruder with exhaust gas treatment device Download PDFInfo
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- CN217704614U CN217704614U CN202222051029.5U CN202222051029U CN217704614U CN 217704614 U CN217704614 U CN 217704614U CN 202222051029 U CN202222051029 U CN 202222051029U CN 217704614 U CN217704614 U CN 217704614U
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- screw extruder
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Abstract
The application relates to a double-screw extruder with a waste gas treatment device, which comprises an extruder body, wherein an exhaust port for discharging waste gas is formed in the extruder body, a first gas suction pipe is arranged above the exhaust port, one end of the first gas suction pipe faces the exhaust port, and the other end of the first gas suction pipe is communicated with a vacuum pump for sucking waste gas; be equipped with the detection piece in the gas vent, the detection piece electricity is connected with the controller, the controller with the vacuum pump electricity is connected, the detection piece is used for detecting exhaust pressure and output pressure signal in the gas vent, the controller is used for receiving pressure signal and converts pressure value and the first interval comparison of predetermineeing into, and when the pressure value was greater than the first maximum value of predetermineeing the interval, the controller increase the power of vacuum pump. The application has the following effects: the efficiency of absorbing and removing waste gas can be improved, and the pollution of the waste gas to the air in the workshop can be reduced.
Description
Technical Field
The application relates to the field of waste gas treatment technology of a double-screw extruder, in particular to a double-screw extruder with a waste gas treatment device.
Background
The twin-screw extruder is developed on the basis of a single-screw extruder, and has the characteristics of good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability and the like, so that the twin-screw extruder is widely applied to molding and processing of extruded products. The twin screw extruder can be used for pelletizing of flame retardant materials, such as PA66 flame retardant materials.
The twin-screw extruder produces waste gas and discharges the waste gas during the working process, and workers usually arrange a pipeline at the gas outlet of the twin-screw extruder to suck the waste gas. However, when the twin-screw extruder is operated, the amount of exhaust gas generated may vary, the efficiency of the duct for sucking the exhaust gas may be reduced, and a part of the exhaust gas may escape into a workshop to pollute the air in the workshop.
SUMMERY OF THE UTILITY MODEL
In order to improve the efficiency of gettering waste gas, reduce the pollution of waste gas to the air in the workshop, this application provides a twin-screw extruder with exhaust treatment device.
The application provides a twin-screw extruder with exhaust treatment device adopts following technical scheme:
a double-screw extruder with a waste gas treatment device comprises a machine body, wherein an exhaust port for exhausting waste gas is formed in the machine body, a first air suction pipe is arranged above the exhaust port, one end of the first air suction pipe faces the exhaust port, and the other end of the first air suction pipe is communicated with a vacuum pump for sucking waste gas;
be equipped with the detection piece in the gas vent, the detection piece electricity is connected with the controller, the controller with the vacuum pump electricity is connected, the detection piece is used for detecting exhaust pressure and output pressure signal in the gas vent, the controller is used for receiving pressure signal and converts pressure value and the first interval comparison of predetermineeing into, and when the pressure value was greater than the first maximum value of predetermineeing the interval, the controller increase the power of vacuum pump.
Through adopting above-mentioned technical scheme, double screw extruder is at the during operation, the waste gas of production is discharged from the gas vent, detect a detectable gas vent exhaust gas pressure, when waste gas increases, pressure rises, the pressure signal that detects is carried to the controller to the detecting element, when the pressure value is greater than the first interval maximum value of predetermineeing, the power of controller increase vacuum pump, vacuum pump suction increases, with this first trachea of accessible suction more waste gas, and then can improve the efficiency of removing waste gas, reduce the pollution of waste gas to the interior air of workshop.
Preferably, the first air suction pipe comprises a corrugated pipe section, a first connecting section and a second connecting section, two ends of the corrugated pipe section are respectively communicated with the first connecting section and the second connecting section, the first connecting section is communicated with the air exhaust port, and the second connecting section is communicated with the vacuum pump.
By adopting the technical scheme, the corrugated pipe section can be telescopically deformed, so that an operator can pull the first connecting section to change the distance between the first connecting section and the exhaust port, and when the double-screw extruder stops working, no waste gas is generated, and the first connecting section can be far away from the exhaust port; when the twin-screw extruder is operated, exhaust gas is generated, and the first connecting section can be close to the exhaust port.
Preferably, the first connecting section is connected with a first driving piece, the first driving piece is electrically connected with the controller, and when the pressure value is greater than the maximum value of a second preset interval, the controller controls the first driving piece to drive the first connecting section so as to enable the first connecting section to approach the exhaust port.
Through adopting above-mentioned technical scheme, the waste gas that the twin-screw extruder produced increases, and when the pressure value was greater than the second and predetermines the maximum value of interval, the steerable first driving piece of controller drive first linkage segment was close to the gas vent, and the waste gas in reducible loss to workshop air to this pollution of reducing waste gas to air in the workshop.
Preferably, the exhaust mask is provided with a filter screen, and the filter screen is detachably connected with the machine body.
Through adopting above-mentioned technical scheme, the gas vent is when exhaust gas, and the filter screen can block impurity and fall into from the gas vent to this entering impurity in can avoiding the gas vent as far as possible.
Preferably, a plurality of grooves are formed in the machine body, the grooves are distributed around the exhaust port, the filter screen is connected with a plurality of convex blocks, and when the filter screen is covered on the exhaust port, the convex blocks are respectively inserted into the grooves.
By adopting the technical scheme, after the filter screen is spliced with the grooves through the convex blocks, the filter screen can be prevented from moving as much as possible, so that the stability of the filter screen cover arranged on the exhaust port can be improved.
Preferably, the organism slides on and is connected with the baffle, the baffle is connected with the second driving piece, the second driving piece is used for the drive the baffle slides with the switch the gas vent.
Through adopting above-mentioned technical scheme, when twin-screw extruder stop work, the second driving piece can drive the baffle and slide, and the baffle slides and moves to closing the gas vent, and when twin-screw extruder work produced waste gas, the second driving piece can drive the baffle and slide, and the baffle slides and opens the gas vent, and gas vent exhaust to this can avoid getting into impurity in the gas vent when twin-screw extruder stop work as far as possible.
Preferably, the first suction pipe is close to the one end intercommunication of gas vent has the petticoat pipe, the petticoat pipe is the round platform form, just the petticoat pipe is close to the opening of gas vent be greater than with the opening of first suction pipe intercommunication.
Through adopting above-mentioned technical scheme, the petticoat pipe can enlarge the scope that first trachea was inhaled and is removed waste gas to this efficiency that can improve and inhale and remove waste gas can reduce the waste gas of loss to the air, reduces the pollution to the workshop air.
Preferably, a second air suction pipe is arranged above the discharge hole of the machine body, one end of the second air suction pipe faces the discharge hole of the machine body, and the other end of the second air suction pipe is communicated with the vacuum pump.
Through adopting above-mentioned technical scheme, the discharge's of vacuum pump accessible second breathing pipe absorption exhaust to this reducible loss is to the waste gas in the air.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the double-screw extruder works, the generated waste gas is discharged from the exhaust port, the pressure of the waste gas discharged from the exhaust port can be detected by the detection piece, when the waste gas is increased, the pressure is increased, the detected pressure signal is transmitted to the controller by the detection piece, when the pressure value is larger than the maximum value of the first preset interval, the power of the vacuum pump is increased by the controller, the suction force of the vacuum pump is increased, so that more waste gas can be sucked and removed through the first suction pipe, the waste gas sucking and removing efficiency can be improved, and the pollution of the waste gas to the air in a workshop can be reduced;
2. the waste gas generated by the double-screw extruder is increased, and when the pressure value is greater than the maximum value of the second preset interval, the controller can control the first driving piece to drive the first connecting section to be close to the exhaust port, so that the waste gas dissipated into air in a workshop can be reduced, and the pollution of the waste gas to the air in the workshop can be reduced;
3. when the double-screw extruder stops working, the second driving piece can drive the baffle to slide, the baffle slides to close the exhaust port, when the double-screw extruder works to generate waste gas, the second driving piece can drive the baffle to slide, the baffle slides to open the exhaust port, and the exhaust port discharges the waste gas, so that impurities in the exhaust port can be avoided as much as possible when the double-screw extruder stops working.
Drawings
FIG. 1 is a schematic view of the overall structure of a twin-screw extruder with an exhaust gas treatment device according to an embodiment of the present application.
FIG. 2 is a schematic diagram showing an exploded view of a twin-screw extruder with an exhaust gas treatment device according to an embodiment of the present application.
Description of the reference numerals:
100. a body; 101. an exhaust port; 102. a groove;
200. a first inhalation tube; 201. a bellows section; 202. a first connection section; 203. a second connection section; 204. a first driving member; 205. a smoke hood;
300. a vacuum pump;
400. a filter screen; 401. a bump;
500. a baffle plate; 501. a second driving member;
600. a second suction duct.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
The embodiment of the application discloses a double screw extruder with exhaust treatment device. Referring to fig. 1 and 2, the twin-screw extruder with the exhaust gas treatment device includes a body 100, a first suction pipe 200 and a vacuum pump 300, the body 100 is provided with an exhaust port 101, the exhaust port 101 is used for discharging exhaust gas, one end of the first suction pipe 200 is communicated with the vacuum pump 300, the other end of the first suction pipe 200 is located above the exhaust port 101 and is arranged towards the exhaust port 101, and the vacuum pump 300 is used for sucking and removing the exhaust gas discharged from the exhaust port 101 through the first suction pipe 200.
The body 100 is rectangular, one end of which is provided with a discharge hole, and the exhaust port 101 is arranged at the top of the body 100. The first suction pipe 200 is distributed in a vertical direction in a length direction. The first air suction pipe 200 comprises a first connecting section 202, a bellows section 201 and a second connecting section 203, wherein two ends of the bellows section 201 are respectively communicated with the first connecting section 202 and the second connecting section 203. The first connection section 202 and the second connection section 203 are both in a circular tube shape, the first connection section 202 is communicated with the exhaust port 101, and the second connection section 203 is communicated with the vacuum pump 300.
The inner wall of the exhaust port 101 is connected with a detection piece, the detection piece is used for detecting the exhaust gas pressure in the exhaust port 101, and the detection piece adopts an HH308 type pressure transmitter. The detection part is electrically connected with a controller, the controller adopts an S7-200 type PLC, and the controller is electrically connected with the vacuum pump 300.
The detection part is used for outputting a pressure signal, the controller is used for receiving the pressure signal and converting the pressure signal into a pressure value to be compared with a first preset interval, and when the pressure value is larger than the maximum value of the first preset interval, the controller increases the power of the vacuum pump 300; when the pressure value is less than the minimum value of the first preset interval, the controller reduces the power of the vacuum pump 300.
A frame is disposed above the machine body 100, a first driving member 204 is connected to the frame, the first driving member 204 is connected to the first connecting section 202, and the first driving member 204 is electrically connected to the controller. The first driving member 204 is a cylinder, the length direction of the piston rod of the cylinder is distributed along the vertical direction, and one end of the piston rod of the cylinder is connected with the first connecting section 202.
The controller is used for receiving the pressure signal and converting the pressure signal into a pressure value to be compared with a second preset interval, when the pressure value is larger than the maximum value of the second preset interval, the controller controls the first driving member 204 to drive the first connecting section 202 to be close to the exhaust port 101, and the piston rod of the air cylinder pushes the first connecting section 202 towards the exhaust port 101 so as to enable the first connecting section 202 to be close to the exhaust port 101.
One end of the first connecting section 202 close to the exhaust port 101 is communicated with a smoke hood 205, the smoke hood 205 is in a circular truncated cone shape, the bottom opening of the smoke hood 205 is larger than the top opening, the first connecting section 202 is communicated with the smoke hood 205 through the top opening of the smoke hood 205, and the bottom opening of the smoke hood 205 is located above the exhaust port 101, faces the exhaust port 101 and is communicated with the exhaust port 101.
A second air suction pipe 600 is arranged above the discharge hole of the machine body 100, one end of the second air suction pipe 600 is communicated with the vacuum pump 300, and the other end faces the discharge hole of the machine body 100 and is used for sucking the waste gas discharged from the discharge hole of the machine body 100.
The exhaust port 101 is covered with a filter screen 400, and the exhaust port 101 and the filter screen 400 are both square. The top of the housing 100 is formed with a plurality of grooves 102, and each groove 102 is distributed around the exhaust port 101. The bottom of the filter screen 400 is connected with a plurality of bumps 401, each bump 401 is respectively inserted into each groove 102, and in this embodiment, there are four grooves 102 and four bumps 401.
The top of the machine body 100 is connected with a second driving member 501, the second driving member 501 is connected with a baffle 500, the baffle 500 is square, and the second driving member 501 adopts a cylinder. The length direction of a piston rod of the air cylinder is consistent with the length direction of the machine body 100, one end of the baffle 500 is connected with the piston rod of the air cylinder, the air cylinder pushes and pulls the baffle 500, and the baffle 500 slides on the top of the machine body 100 along the length direction of the machine body 100 to open and close the air outlet 101.
The application principle of the double-screw extruder with the waste gas treatment device is as follows: twin-screw extruder is at the during operation, gas vent 101 exhaust gas, the detection piece detects exhaust gas pressure, the controller can be according to the big or small increase of exhaust gas pressure value or reduce vacuum pump 300's power, with this suction that changes vacuum pump 300, vacuum pump 300 adsorbs gas vent 101 exhaust gas through first breathing pipe 200, vacuum pump 300 adsorbs exhaust gas of organism 100 discharge gate through second breathing pipe 600, can improve the efficiency of adsorbing gas, the waste gas in reducible loss to the workshop air, and then the pollution of reducible waste gas to the air in the workshop.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a double screw extruder with exhaust treatment device which characterized in that: the exhaust device comprises a machine body (100), wherein an exhaust port (101) used for exhausting waste gas is formed in the machine body (100), a first air suction pipe (200) is arranged above the exhaust port (101), one end of the first air suction pipe (200) faces the exhaust port (101), and the other end of the first air suction pipe (200) is communicated with a vacuum pump (300) used for sucking the waste gas;
be equipped with the detection piece in gas vent (101), the detection piece electricity is connected with the controller, the controller with vacuum pump (300) electricity is connected, the detection piece is used for detecting exhaust pressure and output pressure signal in gas vent (101), the controller is used for receiving pressure signal and converts pressure value and the first interval comparison of predetermineeing into, and when the pressure value was greater than the first maximum value of predetermineeing the interval, the controller increases the power of vacuum pump (300).
2. The twin-screw extruder with an exhaust gas treatment device according to claim 1, characterized in that: the first air suction pipe (200) comprises a corrugated pipe section (201), a first connecting section (202) and a second connecting section (203), two ends of the corrugated pipe section (201) are respectively communicated with the first connecting section (202) and the second connecting section (203), the first connecting section (202) is communicated with the air outlet (101), and the second connecting section (203) is communicated with the vacuum pump (300).
3. The twin-screw extruder with an exhaust gas treatment device according to claim 2, characterized in that: the first connecting section (202) is connected with a first driving piece (204), the first driving piece (204) is electrically connected with the controller, and when the pressure value is larger than the maximum value of a second preset interval, the controller controls the first driving piece (204) to drive the first connecting section (202) to enable the first connecting section (202) to be close to the exhaust port (101).
4. The twin-screw extruder with an exhaust gas treatment device according to claim 1, characterized in that: the exhaust port (101) is covered with a filter screen (400), and the filter screen (400) is detachably connected with the machine body (100).
5. The twin-screw extruder with exhaust gas treatment device according to claim 4, characterized in that: the exhaust port structure is characterized in that a plurality of grooves (102) are formed in the machine body (100), the grooves (102) are distributed around the exhaust port (101), the filter screen (400) is connected with a plurality of protruding blocks (401), and when the filter screen (400) is covered on the exhaust port (101), the protruding blocks (401) are respectively connected with the grooves (102) in an inserted mode.
6. The twin-screw extruder with an exhaust gas treatment device according to claim 1, characterized in that: organism (100) are gone up to slide and are connected with baffle (500), baffle (500) are connected with second driving piece (501), second driving piece (501) are used for the drive baffle (500) slide with the switch gas vent (101).
7. The twin-screw extruder with an exhaust gas treatment device according to claim 1, characterized in that: first suction pipe (200) are close to the one end intercommunication of gas vent (101) has petticoat pipe (205), petticoat pipe (205) are the round platform form, just petticoat pipe (205) are close to the opening of gas vent (101) be greater than with the opening of first suction pipe (200) intercommunication.
8. The twin-screw extruder with an exhaust gas treatment device according to claim 1, characterized in that: a second air suction pipe (600) is arranged above the discharge hole of the machine body (100), one end of the second air suction pipe (600) faces the discharge hole of the machine body (100), and the other end of the second air suction pipe (600) is communicated with the vacuum pump (300).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222051029.5U CN217704614U (en) | 2022-08-01 | 2022-08-01 | Double-screw extruder with exhaust gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222051029.5U CN217704614U (en) | 2022-08-01 | 2022-08-01 | Double-screw extruder with exhaust gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217704614U true CN217704614U (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222051029.5U Active CN217704614U (en) | 2022-08-01 | 2022-08-01 | Double-screw extruder with exhaust gas treatment device |
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| Country | Link |
|---|---|
| CN (1) | CN217704614U (en) |
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2022
- 2022-08-01 CN CN202222051029.5U patent/CN217704614U/en active Active
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