CN105537182A - Cleaning device and method for polyacrylonitrile carbon fiber melt filter - Google Patents

Cleaning device and method for polyacrylonitrile carbon fiber melt filter Download PDF

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Publication number
CN105537182A
CN105537182A CN201610012248.9A CN201610012248A CN105537182A CN 105537182 A CN105537182 A CN 105537182A CN 201610012248 A CN201610012248 A CN 201610012248A CN 105537182 A CN105537182 A CN 105537182A
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CN
China
Prior art keywords
storage tank
fondant filter
cleaning
carbon fiber
solvent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610012248.9A
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Chinese (zh)
Inventor
杨永岗
李二跃
胡培贤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinofibers Technology Co Ltd
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Sinofibers Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sinofibers Technology Co Ltd filed Critical Sinofibers Technology Co Ltd
Priority to CN201610012248.9A priority Critical patent/CN105537182A/en
Publication of CN105537182A publication Critical patent/CN105537182A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04Cleaning involving contact with liquid
    • B08B3/08Cleaning involving contact with liquid the liquid having chemical or dissolving effect
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04Cleaning involving contact with liquid
    • B08B3/10Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity, by vibration

Abstract

The invention belongs to the field of production of carbon fibers, and particularly relates to a cleaning device and method for a polyacrylonitrile carbon fiber melt filter. The cleaning device for the polyacrylonitrile carbon fiber melt filter comprises a solvent storage device, wherein the solvent storage device is connected with the melt filter and comprises a storage tank; a heating device is arranged outside the storage tank in a wrapping manner; a gas Inlet and outlet opening is formed in the upper part of the storage tank; a pressure detecting device which is used for detecting pressure in the storage tank is arranged on the storage tank; and a liquid inlet tube is further arranged on the storage tank. By the cleaning device and method for the carbon fiber melt filter, the polyacrylonitrile carbon fiber melt filter can be cleaned, so that the melt filter can be reused, production cost of carbon fibers is reduced, and meanwhile, because the melt filter can be reused, the problem that the environment is polluted after a filter element of a carbon fiber melt filter in the prior art is used is solved.

Description

The cleaning device of polyacrylonitrile carbon fiber fondant filter and cleaning method
Technical field
The invention belongs to carbon fiber production field, particularly a kind of cleaning device of polyacrylonitrile carbon fiber fondant filter and cleaning method.
Background technology
In polyacrylonitrile carbon fiber spinning solution is produced, the performance of polyacrylonitrile fibre with whether use fondant filter to have certain relation, fondant filter can effectively stop the uneven row materials such as gel to enter into spinning workshop section, thus ensure the performance of polyacrylonitrile fibre, thus improve the performance indications of carbon fiber.Because there is no the cleaning method of melt filter core during but polyacrylonitrile fibre is produced at present, so melt filter core only uses once, not only increase production cost and add environmental pollution.
Summary of the invention
For above-mentioned technical problem, the invention provides a kind of structure cleaning device simple, easy to use and cleaning method.
Technical scheme of the present invention is as follows:
The cleaning device of polyacrylonitrile carbon fiber fondant filter, comprise the solvent storage device be connected with fondant filter, it is characterized in that: described solvent storage device comprises storage tank, the outside of storage tank is coated is provided with heater, the top of described storage tank is provided with gas inlet and outlet, also be provided with the pressure-detecting device that pressure in storage tank is detected, described storage tank be also provided with feed tube.
Described heater comprises the heated shell being arranged on storage tank outside, and the bottom of the side of heated shell is provided with hot water inlet, and top is provided with hot water outlet.
Described heater comprises the heat(ing) coil being arranged on storage tank surface, and the hot water inlet of the bottom setting of described heat(ing) coil, top is provided with hot water outlet.
Described heater comprises the heating membrane being coated on storage tank surface, and described heating membrane is connected with adjuster, and adjuster is connected with power supply.
Described pressure-detecting device is pressure sensor or Pressure gauge.
For a cleaning method for polypropylene carbon fibers fondant filter, it is characterized in that: comprise the following steps:
Step 1, to be incorporated in storage tank by cleaning solvent, and to seal, then heater work, heater heats cleaning solvent, is heated to by cleaning solvent between 30-95 DEG C;
Step 2, storage tank to be pressurizeed, make the pressure in storage tank reach 0.1-0.3MPa;
Step 3, open valve between storage tank and fondant filter, cleaning solvent flows into fondant filter from storage tank and washes away the filter core of fondant filter;
Step 4, after cleaning solvent is full of fondant filter, leave standstill 0.5-2 hour, then by the emptying in fondant filter;
Step 5, repetition step 2 are to step 4;
Step 6, if limpid from the solution of fondant filter discharge in step 4, then stops cleaning.
Described cleaning solvent is dimethyl sulfoxide (DMSO) or dimethyl formamide.
In sum, the present invention has following beneficial effect:
1, the present invention devises a kind of device for carbon fiber melt filter cleaning, is convenient to complete the cleaning to fondant filter online, convenient and swift, and cleaning performance is good.
2, the present invention devises a kind of cleaning method of polyacrylonitrile carbon fiber fondant filter, achieve the cleaning to polyacrylonitrile carbon fiber fondant filter, achieve the recycling of fondant filter, reduce the production cost of carbon fiber, simultaneously, fondant filter can reuse, the problem of the environmental pollution existed after also overcoming the filter core use of carbon fiber fondant filter in prior art.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiments of the present invention one;
Fig. 2 is the structural representation of embodiments of the present invention two;
Fig. 3 is the structural representation of embodiments of the present invention three
In figure, 1 is fondant filter, and 2 is filter core, and 3 is valve, and 4 is gas inlet and outlet, 5 is pressure-detecting device, and 6 is feed tube, and 7 is heated shell, and 71 is heat(ing) coil, and 72 is heating membrane, 8 is hot water outlet, and 9 is storage tank, and 10 is hot water inlet, and 11 is adjuster.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
Set forth below in conjunction with the cleaning device of accompanying drawing to the fondant filter of polyacrylonitrile carbon fiber.
The embodiment one of cleaning device
The cleaning device of polyacrylonitrile carbon fiber fondant filter as shown in Figure 1, comprise the solvent storage device be connected with fondant filter 1, filter core 2 is provided with in fondant filter, described solvent storage device comprises storage tank 9, the outside of storage tank 9 is coated is provided with heater, the top of described storage tank 9 is provided with gas inlet and outlet 4, is also provided with the pressure-detecting device 5 detected pressure in storage tank, described storage tank 9 be also provided with feed tube 6.
Described heater comprises the heated shell 7 being arranged on storage tank outside, and the bottom of the side of heated shell 7 is provided with hot water inlet 10, and top is provided with hot water outlet 8.
Described pressure-detecting device 5 is pressure sensor or Pressure gauge.
The embodiment two of cleaning device
The cleaning device of polyacrylonitrile carbon fiber fondant filter as shown in Figure 2, comprise the solvent storage device be connected with fondant filter 1, described solvent storage device comprises storage tank 9, the outside of storage tank 9 is coated is provided with heater, the top of described storage tank 9 is provided with gas inlet and outlet 4, also be provided with the pressure-detecting device 5 that pressure in storage tank is detected, described storage tank 9 be also provided with feed tube 6.
Described heater comprises the heat(ing) coil 71 being arranged on storage tank surface, and the hot water inlet 10 of the bottom setting of described heat(ing) coil 71, top is provided with hot water outlet 8.
Described pressure-detecting device 5 is pressure sensor or Pressure gauge.
The embodiment three of cleaning device
The cleaning device of polyacrylonitrile carbon fiber fondant filter as shown in Figure 3, it comprises the solvent storage device be connected with fondant filter, described solvent storage device comprises storage tank 9, the outside of storage tank is coated is provided with heater, the top of described storage tank 9 is provided with gas inlet and outlet 4, also be provided with the pressure-detecting device 5 that pressure in storage tank is detected, described storage tank be also provided with feed tube 6.
Described heater comprises the heating membrane 72 being coated on storage tank 9 surface, and described heating membrane 72 is connected with adjuster 11, and adjuster 11 is connected with power supply.
Described pressure-detecting device 5 is pressure sensor or Pressure gauge.
Below a kind of cleaning method for polypropylene carbon fibers fondant filter is set forth.
Cleaning method embodiment one
For a cleaning method for polypropylene carbon fibers fondant filter, comprise the following steps:
Step 1, to be incorporated in storage tank by cleaning solvent, and to seal, then heater work, heater heats cleaning solvent, cleaning solvent is heated to 30 DEG C;
Step 2, pressurize to storage tank, gas is pressurizeed to storage tank by gas inlet and outlet, makes the pressure in storage tank reach 0.1MPa;
Step 3, open valve between storage tank and fondant filter, cleaning solvent flows into fondant filter from storage tank and washes away the filter core of fondant filter;
Step 4, after cleaning solvent is full of fondant filter, leave standstill 2 hours, then by the emptying in fondant filter;
Step 5, repetition step 2 are to step 4;
Step 6, if limpid from the solution of fondant filter discharge in step 4, then stops cleaning.
After stopping cleaning, taken out by the filter core of fondant filter and carry out bubble point test, the bubble point of survey is: 6.7Kpa, meets instructions for use.
Cleaning method embodiment two
For a cleaning method for polypropylene carbon fibers fondant filter, comprise the following steps:
Step 1, to be incorporated in storage tank by cleaning solvent, and to seal, then heater work, heater heats cleaning solvent, cleaning solvent is heated to 95 DEG C;
Step 2, pressurize to storage tank, gas is pressurizeed to storage tank by gas inlet and outlet, makes the pressure in storage tank reach 0.3MPa;
Step 3, open valve between storage tank and fondant filter, cleaning solvent flows into fondant filter from storage tank and washes away the filter core of fondant filter;
Step 4, after cleaning solvent is full of fondant filter, leave standstill 0.5 hour, then by the emptying in fondant filter;
Step 5, repetition step 2 are to step 4;
Step 6, if limpid from the solution of fondant filter discharge in step 4, then stops cleaning.
After stopping cleaning, taken out by the filter core of fondant filter and carry out bubble point test, the bubble point of survey is: 5.3Kpa, meets instructions for use.
Cleaning method embodiment three
For a cleaning method for polypropylene carbon fibers fondant filter, comprise the following steps:
Step 1, to be incorporated in storage tank by cleaning solvent, and to seal, then heater work, heater heats cleaning solvent, cleaning solvent is heated to 50 DEG C;
Step 2, pressurize to storage tank, gas is pressurizeed to storage tank by gas inlet and outlet, makes the pressure in storage tank reach 0.2MPa;
Step 3, open valve between storage tank and fondant filter, cleaning solvent flows into fondant filter from storage tank and washes away the filter core of fondant filter;
Step 4, after cleaning solvent is full of fondant filter, leave standstill 1.5 hours, then by the emptying in fondant filter;
Step 5, repetition step 2 are to step 4;
Step 6, if limpid from the solution of fondant filter discharge in step 4, then stops cleaning.
After stopping cleaning, taken out by the filter core of fondant filter and carry out bubble point test, the bubble point of survey is: 6.25Kpa, meets instructions for use.
Described cleaning solvent is dimethyl sulfoxide (DMSO) or dimethyl formamide.
In sum, the present invention has following beneficial effect:
1, the present invention devises a kind of device for carbon fiber melt filter cleaning, is convenient to complete the cleaning to fondant filter online, convenient and swift, and cleaning performance is good.
2, the present invention devises a kind of cleaning method of polyacrylonitrile carbon fiber fondant filter, achieve the cleaning to polyacrylonitrile carbon fiber fondant filter, achieve the recycling of fondant filter, reduce the production cost of carbon fiber, simultaneously, fondant filter can reuse, the problem of the environmental pollution existed after also overcoming the filter core use of carbon fiber fondant filter in prior art.

Claims (7)

1. the cleaning device of polyacrylonitrile carbon fiber fondant filter, comprise the solvent storage device be connected with fondant filter, it is characterized in that: described solvent storage device comprises storage tank, the outside of storage tank is coated is provided with heater, the top of described storage tank is provided with gas inlet and outlet, also be provided with the pressure-detecting device that pressure in storage tank is detected, described storage tank be also provided with feed tube.
2. the cleaning device of polyacrylonitrile carbon fiber fondant filter according to claim 1, it is characterized in that: described heater comprises the heated shell being arranged on storage tank outside, the bottom of the side of heated shell is provided with hot water inlet, and top is provided with hot water outlet.
3. the cleaning device of polyacrylonitrile carbon fiber fondant filter according to claim 1, it is characterized in that: described heater comprises the heat(ing) coil being arranged on storage tank surface, the hot water inlet of the bottom setting of described heat(ing) coil, top is provided with hot water outlet.
4. the cleaning device of polyacrylonitrile carbon fiber fondant filter according to claim 1, it is characterized in that: described heater comprises the heating membrane being coated on storage tank surface, described heating membrane is connected with adjuster, and adjuster is connected with power supply.
5. the cleaning device of the polyacrylonitrile carbon fiber fondant filter according to claim 1-4 any one, is characterized in that: described pressure-detecting device is pressure sensor or Pressure gauge.
6. for a cleaning method for polypropylene carbon fibers fondant filter, it is characterized in that: comprise the following steps:
Step 1, to be incorporated in storage tank by cleaning solvent, and to seal, then heater work, heater heats cleaning solvent, is heated to by cleaning solvent between 30-95 DEG C;
Step 2, storage tank to be pressurizeed, make the pressure in storage tank reach 0.1-0.3MPa;
Step 3, open valve between storage tank and fondant filter, cleaning solvent flows into fondant filter from storage tank and washes away the filter core of fondant filter;
Step 4, after cleaning solvent is full of fondant filter, leave standstill 0.5-2 hour, then by the emptying in fondant filter;
Step 5, repetition step 2 are to step 4;
Step 6, if limpid from the solution of fondant filter discharge in step 4, then stops cleaning.
7. a kind of cleaning method for polypropylene carbon fibers fondant filter according to claim 6, is characterized in that: described cleaning solvent is dimethyl sulfoxide (DMSO) or dimethyl formamide.
CN201610012248.9A 2016-01-08 2016-01-08 Cleaning device and method for polyacrylonitrile carbon fiber melt filter Pending CN105537182A (en)

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Application Number Priority Date Filing Date Title
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110079815A (en) * 2019-05-13 2019-08-02 中国科学院山西煤炭化学研究所 The polyacrylonitrile fibre spinning solution filtering cleaning method of metal sintered filter

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