CN107443710B - A kind of back-flushing filtering device and its back-flushing method for plastic extruder - Google Patents
A kind of back-flushing filtering device and its back-flushing method for plastic extruder Download PDFInfo
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- CN107443710B CN107443710B CN201610397109.2A CN201610397109A CN107443710B CN 107443710 B CN107443710 B CN 107443710B CN 201610397109 A CN201610397109 A CN 201610397109A CN 107443710 B CN107443710 B CN 107443710B
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- Prior art keywords
- backwash
- hole
- impurity
- filtering
- feeding
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Classifications
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/27—Cleaning; Purging; Avoiding contamination
- B29C48/2725—Cleaning; Purging; Avoiding contamination of filters
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/69—Filters or screens for the moulding material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of back-flushing filtering devices and its back-flushing method for plastic extruder, it includes the filter device main body (1) connecting with the discharge end of plastic extruder, the side of the filter device main body (1) is equipped with feed opening (101), the other side is equipped with discharge hole (107), the filter assemblies being filtered to the material that feed opening (101) flow into are equipped between the interior feed opening of the filter device main body (1) (101) and discharge hole (107), the backwash component for the impurity that filter assemblies filter out to be discharged is additionally provided on the filter device main body (1).It is an advantage of the invention that discharge impurity is more thorough.
Description
Technical field
The present invention relates to a kind of back-flushing filtering devices and its back-flushing method for plastic extruder.
Background technique
On existing plastic extruder, filter device typically just is installed on squeezing out end, certainly by plastic extruder
The pressure generated during the extrusion plastic of body, to realize the impurity discharge of filter device filtering, plastic extruder itself
The pressure generated during extrusion plastic is limited, and impurity is be easy to cause to be not clean.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of back-flushing filtering device for plastic extruder, the dress
The impurity of the backwash component discharge filtering by additional is set, discharge impurity is more thorough.
In order to solve the above technical problems, technical solution provided by the invention are as follows: a kind of backwash for plastic extruder
Filter device, it includes the filter device main body connecting with the discharge end of plastic extruder, the side of the filter device main body
Equipped with feed opening, the other side is equipped with discharge hole, is equipped between feed opening and discharge hole to feed opening in the filter device main body
The filter assemblies that the material of inflow is filtered are additionally provided with the impurity filtered out for filter assemblies to be discharged in the filter device main body
Backwash component.
As a preference, the filter assemblies include cylinder, the cylinder is equipped with and is connected to feed opening for filtering
First filter cavity and the second filter cavity, the backwash component include for be discharged filtered out on the first filter cavity it is miscellaneous
First backwash column of matter and second for the impurity filtered out on the second filter cavity to be discharged backwash column.
As a preference, first through hole is additionally provided in the filter device main body, the first through hole and cylinder slide fit
Close, be equipped with the first feeding-passage and the second feeding-passage penetrated through with feed opening in the filter device main body, described first into
Material channel and the second feeding-passage are connected to first through hole, and first filter cavity refers to the axis direction along cylinder side
The first backwash material chamber that two of upper setting are symmetrical set, second filter cavity refer to the axis along the cylinder other side
Two the second backwash material chambers being symmetrical set that line side is set up, the first backwash material chamber and the second backwash
Expect chamber correspond and up and down, it is each it is described first backwash material chamber be equipped with the first filtering screen, each described second
Backwash material chamber is equipped with the second filtering screen, and the cylinder, which is equipped with, separately flows into left and right for the material in the first feeding-passage
Intracavitary the first concave surface is expected in symmetrically arranged first backwash, and first concave surface is equipped with the first divider, described first point
The outside wall surface and first through hole sliding fit of parting bead；The hole wall of first through hole at left and right sides of first feeding-passage, which is equipped with, to be supplied
By the first impurity outlet of the impurity discharge that the first filtering screen filters out, it is additionally provided on the cylinder logical for the second charging
Material in road is flowed into the second backwash being symmetrical set and expects that the second intracavitary concave surface, second concave surface are equipped with second
Divider, the outside wall surface and first through hole sliding fit of second divider；First at left and right sides of second feeding-passage
The hole wall of through-hole is equipped with the second impurity outlet for the impurity discharge filtered out by the second filtering screen, the filtering dress
The impurity tap for being additionally provided in main body and being connected to the first impurity outlet and the second impurity outlet is set, the cylinder is equipped with
The first recoil hole being connected to the first backwash material chamber that side is distributed up and down with the second backwash material chamber, the filter device master
Body is equipped with the first recoil channel with the first recoil hole perforation, and the first recoil channel is matched with the first backwash column sliding
It closes, first recoil channel is equipped with the first discharge port；Be additionally provided on the cylinder be distributed with about another group it is first anti-
The second recoil hole that material chamber is connected to the second backwash material chamber is rinsed, the filter device main body is equipped with passes through with the second recoil hole
The second logical recoil channel, the second recoil channel are slidably matched with the second backwash column, and second recoil is set on channel
There is the second discharge port, first discharge port and the second discharge port are connected to the discharge hole that filter device main body is equipped with.
As a preference, it further includes connecting with the first backwash column for driving the first backwash column in axial sliding
Second driving mechanism and connect with the second backwash column for driving second to backwash column third driving mechanism in axial sliding；
It is connected on the cylinder for driving cylinder the first driving mechanism in axial sliding.
After using the above structure, compared with prior art, the present invention having the advantage that by filter device main body
If the filter assemblies being filtered to the material that feed opening flows into are arranged, it is arranged in filter device main body for filter assemblies to be discharged
Setting is connected to the first filter cavity for filtering and the with feed opening on the backwash component, in particular to cylinder of the impurity filtered out
Two filter cavities, then by the first backwash column for the impurity filtered out in the first filter cavity to be discharged and for being discharged the
And the second backwash column of the impurity filtered out in filter cavity.Be exactly based on above-mentioned setting, realize will filter out come
Impurity discharge goes to realize and arranges impurity by the first backwash column and the second backwash column compared to the pressure for depending extruder alone
Out, impurity can be discharged more thorough.
The technical problem to be solved by the present invention is to provide a kind of recoil of back-flushing filtering device for plastic extruder
The impurity of filtering more can thoroughly be discharged using the back-flushing method for washing method.
A kind of back-flushing method of the back-flushing filtering device for plastic extruder, it includes the following steps,
Step 1: the material that the feed opening that is equipped with by filter device main body enters be dividedly led into the first feeding-passage and
In second feeding-passage；
Step 2: it enters the material of the first feeding-passage and separately flows into symmetrical the after the shunting of the first divider
One backwash material chamber is filtered by the first filtering screen on the first backwash material chamber, and the material of the second feeding-passage passes through second
Divider separately flows into symmetrical second backwash material chamber after shunting, by the second filter screen on the second backwash material chamber
Cover filtering；
Step 3: the first driving mechanism drives cylinder to slide X distance, until the outside wall surface and first through hole of the first divider
Sliding fit, the outside wall surface and first through hole sliding fit of the second divider, the material for entering the first feeding-passage can only flow into one
In first backwash material chamber of side, the material for entering the second feeding-passage, which can only flow into the second of the same side, backwashes material chamber
In；
Step 4: the second driving mechanism of starting, the impurity of the first filtering screen filtering is from the first impurity outlet of discharge, and the
The impurity of two filtering screens filtering is discharged from the second impurity outlet, then passes through the impurity tap row in filter device main body
Out；
Step 5: the first driving mechanism drives cylinder to slide 2X distance with the opposite direction of step 3, until the first separation
Again with first through hole sliding fit, the outside wall surface of the second divider enters first again with first through hole sliding fit for the outside wall surface of item
The material of feeding-passage can only flow into the first backwash material chamber of the other side in step 3, enter the material of the second feeding-passage
It can only flow into the second backwash material chamber of the same side；
Step 6: starting third driving mechanism, the impurity of the first filtering screen filtering is from the first impurity outlet of discharge, and the
The impurity of two filtering screens filtering is discharged from the second impurity outlet, then passes through the impurity tap row in filter device main body
Out；
Step 7: finally, the first recoil hole, the first discharge port and discharge hole are sequentially communicated, the second recoil hole, second go out
Material mouth and discharge hole are sequentially communicated.
After above method, above-mentioned steps are exactly based on compared with prior art, the present invention having the advantage that, it is real
The impurity discharge that will filter out is showed, by the first backwash column and the second backwash column, compared to the pressure for depending extruder alone
Power goes to realize and impurity is discharged, and impurity can be discharged more thorough.
Detailed description of the invention
Fig. 1 is the device of the invention overall structure diagram.
Fig. 2 is the schematic perspective view of filter device main body of the invention.
Fig. 3 is the planar structure schematic diagram of filter device main body of the invention.
Fig. 4 is the A-A schematic diagram of Fig. 3.
Fig. 5 is that the schematic perspective view after column body is assembled after Fig. 2 is clipped with horizontal plane A.
Fig. 6 is that the schematic perspective view after column body is assembled after Fig. 2 is clipped with horizontal plane B.
Fig. 7 is schematic perspective view of the Fig. 6 towards the mobile X in the direction power F Fig. 6 after.
Fig. 8 is schematic perspective view of the Fig. 7 towards the mobile 2X in the direction power F Fig. 7 after.
Fig. 9 is the schematic perspective view after Fig. 2 is clipped with horizontal plane B.
Figure 10 is cylinder planar structure schematic diagram of the invention.
Figure 11 is the planar structure schematic diagram of method of the invention.
It is as shown in the figure: 1, filter device main body, 101, feed opening, the 102, first feeding-passage, 103, first through hole, 104,
Second feeding-passage, the 105, first impurity outlet, the 106, second impurity outlet, 2, cylinder, the 201, first backwash material chamber,
202, the second backwash material chamber, the 301, first filtering screen, the 302, second filtering screen, the 401, first concave surface, 402, second is recessed
Face, the 501, first dividing strip, the 502, second dividing strip, the 601, first recoil hole, the 602, second recoil hole, the 701, first recoil are logical
Road, the 702, second recoil channel, the 801, first backwash column, the 802, second backwash column, the 901, first discharge port, 902, second
Discharge port, the 10, first driving mechanism, the 11, second driving mechanism, 12, third driving mechanism.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings.
A kind of back-flushing filtering device for plastic extruder of the present invention, such as attached drawing 1, attached drawing 2, attached drawing 3, attached drawing 4, attached
Shown in Fig. 5, attached drawing 6, attached drawing 7, attached drawing 8, attached drawing 9 and attached drawing 10, it includes the mistake connecting with the discharge end of plastic extruder
Filter apparatus main body 1, cylinder 2 and the first driving mechanism 10 for connecting with cylinder 2 and cylinder 2 being driven to be in axial sliding, the mistake
It filters apparatus main body 1 and is equipped with first through hole 103, the first through hole 103 and 2 sliding fit of cylinder, in the filter device main body 1
Equipped with feed opening 101 and with feed opening 101 penetrate through the first feeding-passage 102 and the second feeding-passage 104, described first into
Material channel 102 is connected to first through hole 103, and second feeding-passage 104 is connected to first through hole 103, along the cylinder 2
It sets to backwash there are two first be symmetrical set on axis direction and expects chamber 201, along the opposite side axis direction of the cylinder 2
On set there are two be symmetrical set second backwash material chamber 202, it is described first backwash material chamber 201 with second backwash material
Chamber 202 correspond and up and down, it is each it is described first backwash material chamber 201 be equipped with the first filtering screen 301, Mei Gesuo
The second backwash material chamber 202 is stated equipped with the second filtering screen 302, the cylinder 2 is equipped in the first feeding-passage 102
Material separately flows into the first concave surface 401 in the first backwash material chamber 201 being symmetrical set, on first concave surface 401
Equipped with the first divider 501, the outside wall surface and 103 sliding fit of first through hole of first divider 501；First charging is logical
The hole wall of the first through hole 103 of 102 left and right sides of road is equipped with the impurity discharge for filtering out by the first filtering screen 301
First impurity outlet 105, is additionally provided with to be flowed into for the material in the second feeding-passage 104 on the cylinder 2 and is symmetrical set
The second backwash material chamber 202 in the second concave surface 402, second concave surface 402 is equipped with the second divider 502, described the
The outside wall surface and 103 sliding fit of first through hole of two compartment item 502；The first through hole of second feeding-passage, 104 left and right sides
103 hole wall is equipped with the second impurity outlet 106 for the impurity discharge filtered out by the second filtering screen 302, it is also
Column 802 is backwashed including the first backwash column 801, second, is connect with the first backwash column 801 for driving the first backwash column
801 in axial sliding the second driving mechanism 11 and with second backwash column 802 connect for drive second backwash 802 axis of column
To the third driving mechanism 12 of sliding；It is connected on the cylinder 2 for driving first driving mechanism in axial sliding of cylinder 2
10.The cylinder 2 is equipped with what the first backwash material chamber 201 being distributed up and down with side was connected to the second backwash material chamber 202
First recoil hole 601, the filter device main body 1 are equipped with the first recoil channel 701 penetrated through with the first recoil hole 601, institute
It states the first recoil channel 701 to be slidably matched with the first backwash column 801, first recoil channel 701 is equipped with the first discharging
Mouthfuls 901, the first backwash material chamber 201 being distributed up and down with the other side, which is additionally provided with, on the cylinder 2 expects chamber 202 with the second backwash
Second recoil hole 602 of connection, the filter device main body 1 are equipped with the second recoil channel penetrated through with the second recoil hole 602
702, the second recoil channel 702 is slidably matched with the second backwash column 802, and the second recoil channel 702 is equipped with the
The discharge hole 107 that two discharge ports 902, first discharge port 901 and the second discharge port 902 are equipped with filter device main body 1
Connection.
Such as attached drawing 1, attached drawing 2, attached drawing 3, attached drawing 4, attached drawing 5, attached drawing 6, attached drawing 7, attached drawing 8, attached drawing 9, attached drawing 10 and attached
Shown in Figure 11, a kind of back-flushing method of the back-flushing filtering device for plastic extruder of the present invention, it includes step below
Suddenly,
Step 1: the material that the feed opening 101 being equipped with by filter device main body 1 enters is dividedly led into logical to the first charging
Road 102 and the second feeding-passage 104；
Step 2: the material for entering the first feeding-passage 102 separately flows into left and right pair after the shunting of the first divider 501
The the first backwash material chamber 201 claimed, is filtered, the second charging is logical by the first filtering screen 301 on the first backwash material chamber 201
The material in road 104 separately flows into symmetrical second backwash material chamber 202 after the shunting of the second divider 502, by second
The second filtering screen 302 filtering on backwash material chamber 202；
Step 3: the first driving mechanism 10 drives cylinder 2 to slide X distance, until the outside wall surface and the of the first divider 501
One through-hole, 103 sliding fit, the outside wall surface and 103 sliding fit of first through hole of the second divider 502, enters the first feeding-passage
102 material can only flow into the first backwash material chamber 201 of side, and the material for entering the second feeding-passage 104 can only flow into
Into the second backwash material chamber 202 of the same side；
Step 4: the impurity of the second driving mechanism 11 of starting, the filtering of the first filtering screen 301 is discharged from the first impurity of discharge
The impurity of mouth 105, the filtering of the second filtering screen 302 is discharged from the second impurity outlet 106, then by filter device main body 1
Impurity tap discharge；
Step 5: the first driving mechanism 10 drives cylinder 2 to slide 2X distance with the opposite direction of step 3, until first point
The outside wall surface of parting bead 501 again with 103 sliding fit of first through hole, the outside wall surface of the second divider 502 again with 103 slide fit of first through hole
It closing, the material for entering the first feeding-passage 102 can only flow into the first backwash material chamber 201 of the other side in step 3, into
The material entered to the second feeding-passage 104 can only flow into the second backwash material chamber 202 of the same side；
Step 6: the impurity of starting third driving mechanism 12, the filtering of the first filtering screen 301 is discharged from the first impurity of discharge
The impurity of mouth 105, the filtering of the second filtering screen 302 is discharged from the second impurity outlet 106, then by filter device main body 1
Impurity tap discharge；
Step 7: final first recoil hole 601, the first discharge port 901 and discharge hole 107 are sequentially communicated, the second recoil
Hole 602, the second discharge port 902 and discharge hole 107 are sequentially communicated, finally, clean material is flowed out from discharge hole 107.
Only highly preferred embodiment of the present invention is described above, but is not to be construed as limiting the scope of the invention.This
Invention is not limited only to above embodiments, and various changes made within the protection scope of the independent claims of the invention are at this
In the protection scope of invention.
Claims (2)
1. a kind of back-flushing method of the back-flushing filtering device for plastic extruder, it is characterised in that:
Based on the back-flushing filtering device for plastic extruder；
The back-flushing filtering device for plastic extruder includes the filter device connecting with the discharge end of plastic extruder
The side of main body (1), the filter device main body (1) is equipped with feed opening (101), and the other side is equipped with discharge hole (107), the mistake
The material for flowing into feed opening (101) is equipped between filter apparatus main body (1) interior feed opening (101) and discharge hole (107) to be filtered
Filter assemblies, the backwash component for the impurity that filter assemblies filter out to be discharged is additionally provided on the filter device main body (1)；
The filter assemblies include cylinder (2), and the cylinder (2) is equipped with the first mistake being connected to feed opening (101) for filtering
Filter chamber body and the second filter cavity, the backwash component include for the impurity filtered out on the first filter cavity to be discharged
One backwashes column (801) and the second backwash column (802) for the impurity filtered out on the second filter cavity to be discharged；
It is additionally provided with first through hole (103) on the filter device main body (1), the first through hole (103) and cylinder (2) slide fit
It closes, the first feeding-passage (102) penetrated through with feed opening (101) is equipped in the filter device main body (1) and the second charging is logical
Road (104), first feeding-passage (102) and the second feeding-passage (104) are connected to first through hole (103), and described
One filter cavity refers to two be arranged along the axis direction of cylinder (2) side the first backwash material chambers being symmetrical set
(201), second filter cavity refers to that be arranged along the axis direction of cylinder (2) other side two are symmetrical set
Second backwash material chamber (202), it is described first backwash material chamber (201) with second backwash material chamber (202) correspond and on
Lower perforation, each first backwash material chamber (201) are equipped with the first filtering screen (301), each second backwash
Expect that chamber (202) are equipped with the second filtering screen (302), the cylinder (2) is equipped with for the material point in the first feeding-passage (102)
It is not flowed into the first concave surface (401) in the first backwash material chamber (201) being symmetrical set, first concave surface (401)
It is equipped with the first divider (501), the outside wall surface and first through hole (103) sliding fit of first divider (501)；Described
The hole wall of first through hole (103) at left and right sides of one feeding-passage (102) is equipped with for filtering by the first filtering screen (301)
First impurity outlet (105) of impurity discharge out, is additionally provided in the second feeding-passage (104) on the cylinder (2)
Material is flowed into the second concave surface (402) in the second backwash material chamber (202) being symmetrical set, second concave surface (402)
It is equipped with the second divider (502), the outside wall surface and first through hole (103) sliding fit of second divider (502)；Described
The hole wall of first through hole (103) at left and right sides of two feeding-passages (104) is equipped with for filtering by the second filtering screen (302)
Second impurity outlet (106) of impurity discharge out, is additionally provided with and the first impurity outlet on the filter device main body (1)
(105) the impurity tap being connected to the second impurity outlet (106), the cylinder (2) are equipped with and distribution above and below side
The first recoil hole (601) that first backwash material chamber (201) is connected to the second backwash material chamber (202), the filter device master
Body (1) is equipped with the first recoil channel (701) with the first recoil hole (601) perforation, first recoil channel (701) and the
One backwash column (801) is slidably matched, and first recoil channel (701) is equipped with the first discharge port (901)；The cylinder
(2) the first backwash material chamber (201) for being distributed with about another group and the second backwash expect that chamber (202) are connected to the is additionally provided on
Two recoils hole (602), the filter device main body (1) are equipped with the second recoil channel with the second recoil hole (602) perforation
(702), second recoil channel (702) is slidably matched with the second backwash column (802), second recoil channel (702)
It is equipped with the second discharge port (902), on first discharge port (901) and the second discharge port (902) and filter device main body (1)
Discharge hole (107) connection being equipped with；
It includes the following steps,
Step 1: the material that the feed opening (101) being equipped with by filter device main body (1) enters is dividedly led into logical to the first charging
In road (102) and the second feeding-passage (104)；
Step 2: the material for entering the first feeding-passage (102) separately flows into left and right pair after the first divider (501) shunt
The first backwash material chamber (201) claimed, is filtered, second by the first filtering screen (301) on the first backwash material chamber (201)
The material of feeding-passage (104) separately flows into symmetrical second backwash material chamber after the second divider (502) shunt
(202), it is filtered by the second filtering screen (302) on the second backwash material chamber (202)；
Step 3: the first driving mechanism (10) drive cylinder (2) slide X distance, until the first divider (501) outside wall surface with
First through hole (103) sliding fit, the outside wall surface of the second divider (502) and first through hole (103) sliding fit, enter first into
The material of material channel (102) can only flow into the first backwash material chamber (201) of side, enter the second feeding-passage (104)
Material can only flow into the same side second backwash material chamber (202) in；
Step 4: the impurity of starting the second driving mechanism (11), the first filtering screen (301) filtering is discharged from the first impurity of discharge
The impurity of mouth (105), the second filtering screen (302) filtering is discharged from the second impurity outlet (106), then passes through filter device master
Impurity tap discharge on body (1)；
Step 5: the first driving mechanism (10) drives cylinder (2) to slide 2X distance with the opposite direction of step 3, until first point
The outside wall surface of parting bead (501) is again with first through hole (103) sliding fit, and the outside wall surface of the second divider (502) is again and first through hole
(103) sliding fit, the material for entering the first feeding-passage (102) can only flow into the first backwash material of the other side in step 3
In chamber (201), the material for entering the second feeding-passage (104) be can only flow into second backwash material chamber (202) of the same side；
Step 6: the impurity of starting third driving mechanism (12), the first filtering screen (301) filtering is discharged from the first impurity of discharge
The impurity of mouth (105), the second filtering screen (302) filtering is discharged from the second impurity outlet (106), then passes through filter device master
Impurity tap discharge on body (1)；
Step 7: finally, the first recoil hole (601), the first discharge port (901) and discharge hole (107) are sequentially communicated, second is anti-
Punching (602), the second discharge port (902) and discharge hole (107) are sequentially communicated.
2. a kind of back-flushing method of back-flushing filtering device for plastic extruder according to claim 1, special
Sign is: the back-flushing filtering device for plastic extruder further includes connecting with the first backwash column (801) for driving
The second driving mechanism (11) and connecting with the second backwash column (802) is used in axial sliding for dynamic first backwash column (801)
Driving second backwashes column (802) third driving mechanism (12) in axial sliding；It is connected on the cylinder (2) for driving column
Body (2) the first driving mechanism (10) in axial sliding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397109.2A CN107443710B (en) | 2016-05-30 | 2016-05-30 | A kind of back-flushing filtering device and its back-flushing method for plastic extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397109.2A CN107443710B (en) | 2016-05-30 | 2016-05-30 | A kind of back-flushing filtering device and its back-flushing method for plastic extruder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107443710A CN107443710A (en) | 2017-12-08 |
| CN107443710B true CN107443710B (en) | 2019-06-14 |
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ID=60486090
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610397109.2A Expired - Fee Related CN107443710B (en) | 2016-05-30 | 2016-05-30 | A kind of back-flushing filtering device and its back-flushing method for plastic extruder |
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| Country | Link |
|---|---|
| CN (1) | CN107443710B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772460A (en) * | 2005-08-02 | 2006-05-17 | 梁斌 | Column type back wash net changing device |
| CN205767400U (en) * | 2016-05-30 | 2016-12-07 | 台州市黄岩莱恩模业有限公司 | A kind of back-flushing filtering device for plastic extruder |
-
2016
- 2016-05-30 CN CN201610397109.2A patent/CN107443710B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772460A (en) * | 2005-08-02 | 2006-05-17 | 梁斌 | Column type back wash net changing device |
| CN205767400U (en) * | 2016-05-30 | 2016-12-07 | 台州市黄岩莱恩模业有限公司 | A kind of back-flushing filtering device for plastic extruder |
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| Publication number | Publication date |
|---|---|
| CN107443710A (en) | 2017-12-08 |
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