CN114347575A - Production process and equipment of medical activated carbon non-woven fabric - Google Patents
Production process and equipment of medical activated carbon non-woven fabric Download PDFInfo
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- CN114347575A CN114347575A CN202111524064.8A CN202111524064A CN114347575A CN 114347575 A CN114347575 A CN 114347575A CN 202111524064 A CN202111524064 A CN 202111524064A CN 114347575 A CN114347575 A CN 114347575A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 149
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 230000008595 infiltration Effects 0.000 claims abstract description 29
- 238000001764 infiltration Methods 0.000 claims abstract description 29
- 239000000853 adhesive Substances 0.000 claims abstract description 20
- 230000001070 adhesive effect Effects 0.000 claims abstract description 20
- 238000005507 spraying Methods 0.000 claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims abstract description 4
- 239000000839 emulsion Substances 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 58
- 239000004744 fabric Substances 0.000 claims description 39
- 239000000155 melt Substances 0.000 claims description 25
- 238000005096 rolling process Methods 0.000 claims description 19
- 230000009471 action Effects 0.000 claims description 18
- 239000012046 mixed solvent Substances 0.000 claims description 17
- 238000002791 soaking Methods 0.000 claims description 16
- 238000009736 wetting Methods 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 4
- 239000000080 wetting agent Substances 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 238000004887 air purification Methods 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000011049 filling Methods 0.000 claims description 2
- 238000001802 infusion Methods 0.000 claims description 2
- 238000007731 hot pressing Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The invention discloses a production process and equipment of medical activated carbon non-woven fabric, belonging to the technical field of non-woven fabric production process, wherein the non-woven fabric comprises an upper structural layer, an activated carbon layer and a lower structural layer, the activated carbon layer is arranged between the upper structural layer and the lower structural layer, the activated carbon layer is formed by spraying mixed emulsion powder of activated carbon and an adhesive at high pressure, the upper structural layer and the lower structural layer are both formed by melting raw material particles to form a solution and then spraying the solution to form filaments, and the activated carbon layer is wrapped in the upper structural layer and the lower structural layer after infiltration, flattening and drying; the hot-pressing and infiltrating combined type activated carbon nonwoven fabric can combine two production modes of hot pressing and infiltrating, a stable activated carbon layer is formed in the nonwoven fabric, meanwhile, all structural layers are tightly combined, the structural strength is higher, the production continuity can be kept, and the production efficiency is higher.
Description
Technical Field
The invention relates to the technical field of non-woven fabric production processes, in particular to a production process and equipment of medical activated carbon non-woven fabrics.
Background
The non-woven fabric is also called non-woven fabric, is formed by oriented or random fibers, is a new generation of environment-friendly material, and has the characteristics of moisture resistance, air permeability, flexibility, light weight, no combustion supporting, easy decomposition, no toxicity, no irritation, rich color, low price, recycling and the like. For example, the polypropylene (pp material) granules are mostly adopted as raw materials and are produced by a continuous one-step method of high-temperature melting, spinning, laying a line and hot-pressing coiling. It is called a cloth because of its appearance and certain properties.
The existing production of activated carbon non-woven fabric generally depends on a hot pressing or infiltration mode to form an activated carbon layer in the non-woven fabric, for example, a melt-blown activated carbon non-woven fabric and a production worker thereof described in application No. 201310044653.5, the activated carbon layer and a non-woven fabric layer are hot pressed to form the activated carbon non-woven fabric through equipment such as a screw extruder, an activated carbon applying device, a melt injection die head, a heater, a compressed air bag, an activated carbon powder injection head, a net conveying curtain, a roller, a cloth rolling machine and the like, but the traditional production process cannot enable the activated carbon layer and the non-woven fabric layer to be tightly attached, and meanwhile, the traditional infiltration mode is long in infiltration time, so that each processing flow of the non-woven fabric cannot be continuously carried out, and the efficiency is low.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a production process and equipment of medical activated carbon non-woven fabric, which can combine two production modes of hot pressing and infiltration to form a stable activated carbon layer in the non-woven fabric, and meanwhile, the combination of all structural layers is tight, the structural strength is higher, the production continuity can be kept, and the production efficiency is higher.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
The utility model provides a medical activated carbon non-woven fabrics production technology and equipment, the non-woven fabrics includes structural layer, activated carbon layer and lower structural layer, the activated carbon layer set up in go up the structural layer with down between the structural layer, the activated carbon layer is that activated carbon and adhesive mix the milky powder high pressure and spray and form, go up the structural layer with down the structural layer sprays the filamentation by raw materials granule melting after forming the solution and constitutes, just go up the structural layer with it will after the structural layer is again through infiltration, flatten and dry under living activated carbon layer parcel wherein, its production technology includes following step:
step one, spraying to form a net: raw material particles are loaded into a feeding hopper of a spiral extruder, so that the raw material particles are heated and melted by the spiral extruder to form a melt, the melt is extruded by the spiral extruder, the melt is metered and output to a melt injection die head through a metering device, air heated by an air heater also enters the melt injection die head, the melt can be ejected from the melt injection die head under the action of negative pressure, and the ejected melt is drafted by air flow to form fibers and is laid on a screen;
step two, spraying a mixed solvent: filling activated carbon powder and an adhesive into an activated carbon adding device and an adhesive adding device through a charging opening, extruding internal substances from the activated carbon adding device and the adhesive adding device according to a certain proportion, fully mixing the internal substances into a stirring device to form a mixed solvent, metering the mixed solvent by a metering device and outputting the mixed solvent to a mixed liquid spray head, and simultaneously enabling the air purified and compressed by an air purification compressor to enter the mixed liquid spray head along with the mixed solvent so that the mixed solvent is sprayed onto a lower structural layer under the action of high pressure to form an activated carbon layer;
step three, secondary spraying and net forming: repeating the operation of the first step through equipment symmetrically arranged on the other side of the mixed liquid injection head, and forming fibers by drafting the melt sprayed out twice through airflow to be laid on the activated carbon layer to form grey cloth;
step four, soaking: the grey cloth formed by combining the upper structural layer, the activated carbon layer and the lower structural layer is penetrated inside the infiltration device and is fully infiltrated by the infiltration agent inside the infiltration device;
step five, flattening: the fully soaked grey cloth is pressed to be flat at high temperature by a rolling device;
step six, drying: fully drying the fully flattened grey cloth through a drying box;
step seven, rolling: and rolling the dried and formed activated carbon non-woven fabric into a fabric roll by a cloth rolling machine.
Furthermore, the adding ratio of the activated carbon and the adhesive of the mixed solvent in the second step is 9:1, the particle size of the activated carbon powder is 8-50 μm, and the adhesive is industrial polyvinyl alcohol.
Further, the stirring device in the second step is an anchor stirrer, the stirring speed is 30-50RPM, and the stirring time is not less than 15 minutes.
Furthermore, the impregnating agent in the fourth step is prepared by mixing 20-30% of activated carbon powder, 5-10% of adhesive, 0.5-1% of dispersing agent and other auxiliary agents and 40-70% of water, and the impregnating temperature is kept at 25-30 ℃.
Further, infiltration device in step four includes two casings that the symmetry set up, wherein is located the top casing top surface is provided with the liquid reserve tank, is located the bottom casing bottom surface is provided with the liquid recovery case, spacing spout has been seted up to casing side symmetry equidistance, rotate through being provided with to tight device between the spacing spout and be connected with the infiltration roller, wherein be located the top the infiltration roller surface has evenly seted up the drain hole, just the infiltration roller is inside through being provided with the transfer line with the liquid reserve tank is inside to be linked together, the infiltration roller with be connected through sealed pivot between the transfer line tip.
Furthermore, the abutting device comprises a sliding support which is embedded in the limiting sliding groove in a sliding mode, the sliding support is rotatably sleeved at two ends of the soaking roller, and an abutting elastic piece is fixedly embedded between the top surface of the sliding support and the inner wall of the limiting sliding groove.
Furthermore, the liquid outlet holes are circumferentially and uniformly arrayed on the surface of the soaking roller, the liquid outlet holes are conical holes, and the inner diameter of each liquid outlet hole is larger than the outer diameter of each liquid outlet hole.
Further, the using steps of the infiltration device are as follows:
s1, adding the impregnating compound into the liquid storage box through an adding port at the top end of the liquid storage box;
s2, conveying the impregnating compound to the impregnating roller at the top end through a liquid supply pump in the liquid storage box and a liquid conveying pipe;
s3, the gray fabric is connected between two vertically symmetrical wetting rollers in a penetrating manner, the wetting rollers are pushed to extrude the gray fabric by the reverse elasticity of the resisting elastic part, meanwhile, the sizing agent is discharged from the liquid outlet hole under the action of gravity and fully wetted on the surface of the gray fabric, meanwhile, the gray fabric moves between the wetting rollers under the action of the winding tension of the cloth rolling machine, and meanwhile, the wetting rollers rotate relatively under the action of relative friction force to fully wet the gray fabric;
and S4, dropping the infiltrated and precipitated infiltrating agent into the liquid recovery box under the action of gravity and collecting the infiltrating agent.
Further, the rolling device in the fifth step is a flat vulcanizing machine, the flattening temperature is 140-.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
this scheme is through combining together hot pressing and two kinds of production methods of infiltrating, forms stable activated carbon layer in the non-woven fabrics is inside, is provided with the infiltration device simultaneously, and traditional infiltration mode relatively more matches production process flow, and infiltration speed is faster, can infiltrate activated carbon to between each structural layer simultaneously for connect inseparabler between each structural layer, structural strength is higher, and has guaranteed the continuity of production process, makes production efficiency higher.
Drawings
FIG. 1 is a schematic view of a nonwoven fabric structure of the present invention;
FIG. 2 is a process flow diagram of the present invention;
FIG. 3 is a flow chart of the production process of the present invention;
FIG. 4 is a schematic view of the immersion apparatus of the present invention;
FIG. 5 is a schematic view of the structure of the wetting roller and the liquid outlet holes of the present invention.
The reference numbers in the figures illustrate:
1. an upper structural layer; 2. an activated carbon layer; 3. a lower structural layer; 4. a housing; 5. a limiting chute; 6. a sliding support; 7. a wetting roller; 8. a liquid outlet hole; 9. a liquid storage tank; 10. a transfusion tube; 11. a liquid recovery tank; 12. the elastic piece is propped tightly.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Example 1:
referring to fig. 1-5, a process and an apparatus for producing a medical activated carbon non-woven fabric, the non-woven fabric includes an upper structural layer 1, an activated carbon layer 2 and a lower structural layer 3, the activated carbon layer 2 is disposed between the upper structural layer 1 and the lower structural layer 3, the activated carbon layer 2 is formed by spraying emulsion powder mixed with activated carbon and adhesive under high pressure, the upper structural layer 1 and the lower structural layer 3 are formed by melting raw material particles to form a solution and then spraying the solution to form filaments, and the upper structural layer 1 and the lower structural layer 3 are soaked, pressed flat and dried to wrap the activated carbon layer 2 therein, the process includes the following steps:
step one, spraying to form a net: raw material particles are loaded into a feeding hopper of a spiral extruder, so that the raw material particles are heated and melted by the spiral extruder to form a melt, the melt is extruded by the spiral extruder, the melt is metered and output to a melt injection die head through a metering device, air heated by an air heater also enters the melt injection die head, the melt can be ejected from the melt injection die head under the action of negative pressure, and the ejected melt is drafted by air flow to form fibers and is laid on a screen;
step two, spraying a mixed solvent: loading activated carbon powder and an adhesive into an activated carbon adding device and an adhesive adding device through a charging opening, extruding internal substances from the activated carbon adding device and the adhesive adding device according to a ratio of 9:1, entering an anchor stirrer, stirring for 15 minutes at a stirring rotating speed of 40RPM, fully mixing to form a mixed solvent, metering and outputting the mixed solvent to a mixed liquid spraying head through a metering device, and simultaneously enabling air purified and compressed by an air purification compressor to enter the mixed liquid spraying head along with the air so that the mixed solvent is sprayed onto a lower structural layer 3 under the action of high pressure to form an activated carbon layer 2;
step three, secondary spraying and net forming: repeating the operation of the first step through equipment symmetrically arranged at the other side of the mixed liquid injection head, and forming fibers by drafting the melt sprayed out twice through airflow to be laid on the activated carbon layer 2 to form grey cloth;
step four, soaking: the grey cloth formed by combining the upper structural layer 1, the activated carbon layer 2 and the lower structural layer 3 is penetrated inside the infiltration device and is fully infiltrated by an infiltration agent inside the infiltration device;
step five, flattening: the fully soaked grey cloth is pressed to be flat by a flat vulcanizing machine at the temperature of 145 ℃ and under the pressure of 0.4 MPa;
step six, drying: fully drying the fully flattened grey cloth through a drying box;
step seven, rolling: and rolling the dried and formed activated carbon non-woven fabric into a fabric roll by a cloth rolling machine.
Referring to FIG. 2, the particle size of the activated carbon powder is 8 μm to 50 μm, in this example, the particle size of the activated carbon powder is 20 μm, and the binder is industrial grade polyvinyl alcohol.
Referring to fig. 2, the impregnating agent in the fourth step is formed by mixing 25% of activated carbon powder, 10% of adhesive, 1% of dispersing agent and other auxiliary agents and 64% of water, and the impregnating temperature is kept at 30 ℃.
Referring to fig. 4 and 5, the soaking device in the fourth step includes two shells 4 symmetrically arranged, wherein a liquid storage tank 9 is arranged on the top surface of the shell 4 at the top end, a liquid recovery tank 11 is arranged on the bottom surface of the shell 4 at the bottom end, limiting chutes 5 are symmetrically arranged on the side surfaces of the shells 4 at equal intervals, a tightening device is arranged between the limiting chutes 5 to be rotatably connected with a soaking roller 7, liquid outlet holes 8 are uniformly arranged on the surface of the soaking roller 7 at the top end, the inside of the soaking roller 7 is communicated with the inside of the liquid storage tank 9 through a liquid conveying pipe 10, the soaking roller 7 is connected with the end part of the liquid conveying pipe 10 through a sealing rotating shaft, and a soaking agent can be added into the soaking roller 7 while the soaking roller is rotating, so as to fully soak the gray fabric.
Referring to fig. 4, the abutting device includes a sliding support 6 slidably embedded in the limiting chute 5, the sliding support 6 is rotatably sleeved at two ends of the wetting roller 7, and an abutting elastic member 12 is fixedly embedded between the top surface of the sliding support 6 and the inner wall of the limiting chute 5.
Referring to fig. 5, the liquid outlet holes 8 are circumferentially and uniformly arrayed on the surface of the soaking roller 7, the liquid outlet holes 8 are tapered holes, the inner diameter of each liquid outlet hole is larger than the outer diameter of each liquid outlet hole, the liquid can flow out conveniently, the maximum aperture is 0.1-0.3mm, and the aperture in the embodiment is 0.2 mm.
Referring to fig. 4 and 5, the steps of using the immersion device are as follows:
s1, adding the impregnating compound into the liquid storage box 9 through an adding port at the top end of the liquid storage box 9;
s2, conveying the impregnating compound to the impregnating roller 7 at the top end through the infusion tube 10 by the liquid supply pump in the liquid storage box 9;
s3, the gray fabric is connected between two vertically symmetrical wetting rollers 7 in a penetrating manner, the wetting rollers 7 are pushed to extrude the gray fabric by the reverse elasticity of the resisting elastic part 12, meanwhile, the wetting agent is discharged from the liquid outlet hole 8 under the action of gravity and fully wetted on the surface of the gray fabric, meanwhile, the gray fabric moves between the wetting rollers 7 under the action of the rolling tension of the cloth rolling machine, and meanwhile, the wetting rollers 7 relatively rotate under the action of relative friction force to fully wet the gray fabric;
s4, the precipitated wetting agent drops into the liquid recovery tank 11 under the action of gravity and is collected.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (9)
1. A production process of medical activated carbon non-woven fabric is characterized by comprising the following steps: the non-woven fabrics includes structural layer (1), activated carbon layer (2) and lower structural layer (3), activated carbon layer (2) set up in go up structural layer (1) with down between structural layer (3), activated carbon layer (2) are activated carbon and adhesive mixing emulsion powder high pressure jet and form, go up structural layer (1) with structural layer (3) spray the filamentation by the raw materials granule melting after forming the solution down and constitute, just go up structural layer (1) with under the activity structural layer (3) will after infiltrating, flattening and drying again activated carbon layer (2) parcel wherein, its production technology includes following step:
step one, spraying to form a net: raw material particles are loaded into a feeding hopper of a spiral extruder, so that the raw material particles are heated and melted by the spiral extruder to form a melt, the melt is extruded by the spiral extruder, the melt is metered and output to a melt injection die head through a metering device, air heated by an air heater also enters the melt injection die head, the melt can be ejected from the melt injection die head under the action of negative pressure, and the ejected melt is drafted by air flow to form fibers and is laid on a screen;
step two, spraying a mixed solvent: filling activated carbon powder and an adhesive into an activated carbon adding device and an adhesive adding device through a charging opening, extruding internal substances from the activated carbon adding device and the adhesive adding device according to a certain proportion, fully mixing the internal substances into a stirring device to form a mixed solvent, metering the mixed solvent by a metering device and outputting the mixed solvent to a mixed liquid spraying head, and simultaneously feeding air purified and compressed by an air purification compressor into the mixed liquid spraying head so that the mixed solvent is sprayed onto a lower structural layer (3) under the action of high pressure to form an activated carbon layer (1);
step three, secondary spraying and net forming: repeating the operation of the first step through equipment symmetrically arranged at the other side of the mixed liquid injection head, and forming fibers by drafting the melt sprayed out twice through airflow to be laid on the activated carbon layer (2) to form grey cloth;
step four, soaking: the grey cloth formed by combining the upper structural layer (1), the activated carbon layer (2) and the lower structural layer (3) is penetrated in the infiltration device and is fully infiltrated by the infiltrant in the infiltration device;
step five, flattening: the fully soaked grey cloth is pressed to be flat at high temperature by a rolling device;
step six, drying: fully drying the fully flattened grey cloth through a drying box;
step seven, rolling: and rolling the dried and formed activated carbon non-woven fabric into a fabric roll by a cloth rolling machine.
2. The production process of the medical activated carbon non-woven fabric according to claim 1, which is characterized in that: the adding ratio of the activated carbon and the adhesive of the mixed solvent in the second step is 9:1, the particle size of the activated carbon powder is 8-50 μm, and the adhesive is industrial polyvinyl alcohol.
3. The production process of the medical activated carbon non-woven fabric according to claim 1, which is characterized in that: and the stirring device in the second step is an anchor stirrer, the stirring speed is 30-50RPM, and the stirring time is not less than 15 minutes.
4. The production process of the medical activated carbon non-woven fabric according to claim 1, which is characterized in that: the impregnating agent in the fourth step is prepared by mixing 20-30% of activated carbon powder, 5-10% of adhesive, 0.5-1% of dispersing agent and other auxiliary agents and 40-70% of water, and the impregnating temperature is kept at 25-30 ℃.
5. The production process of the medical activated carbon non-woven fabric according to claim 1, which is characterized in that: step four infiltration device is including two casings (4) that the symmetry set up, wherein is located the top casing (4) top surface is provided with liquid reserve tank (9), is located the bottom casing (4) bottom surface is provided with liquid recovery case (11), spacing spout (5) have been seted up to casing (4) side symmetry equidistance, rotate through being provided with to tight device between spacing spout (5) and be connected with infiltration roller (7), wherein are located the top infiltration roller (7) surface has evenly seted up out liquid hole (8), just infiltration roller (7) inside through be provided with transfer line (10) with liquid reserve tank (9) inside is linked together, infiltration roller (7) with be connected through sealed pivot between transfer line (10) the tip.
6. The production process of the medical activated carbon non-woven fabric according to claim 5, characterized in that: the abutting device comprises a sliding support (6) which is embedded into the limiting sliding groove (5) in a sliding mode, the sliding support (6) is rotatably sleeved at two ends of the soaking roller (7), and an abutting elastic piece (12) is fixedly embedded between the top surface of the sliding support (6) and the inner wall of the limiting sliding groove (5).
7. The production process of the medical activated carbon non-woven fabric according to claim 6, which is characterized in that: the liquid outlet holes (8) are uniformly arrayed on the surface of the soaking roller (7) in a circumferential shape, the liquid outlet holes (8) are conical holes, and the inner diameter of each liquid outlet hole is larger than the outer diameter of each liquid outlet hole.
8. The production process of the medical activated carbon non-woven fabric according to claim 7, which is characterized in that: the using steps of the infiltration device are as follows:
s1, adding the impregnating compound into the liquid storage box (9) through an adding port at the top end of the liquid storage box (9);
s2, conveying the impregnating compound to an impregnating roller (7) positioned at the top end through a liquid supply pump in a liquid storage box (9) and an infusion tube (10);
s3, the gray fabric is connected between two vertically symmetrical wetting rollers (7) in a penetrating manner, the wetting rollers (7) are pushed to extrude the gray fabric by the aid of reverse elasticity of the resisting elastic pieces (12), meanwhile, the wetting agent is discharged from the liquid outlet holes (8) under the action of gravity and fully wetted on the surface of the gray fabric, the gray fabric moves between the wetting rollers (7) under the action of rolling tension of a cloth rolling machine, and meanwhile, the wetting rollers (7) rotate relatively under the action of relative friction force to fully wet the gray fabric;
s4, the precipitated wetting agent drops into the liquid recovery box (11) under the action of gravity and is collected.
9. The production process of the medical activated carbon non-woven fabric according to claim 1, which is characterized in that: the rolling device in the fifth step is a flat vulcanizing machine, the flattening temperature is 140-150 ℃, and the pressure is controlled to be 0.1-0.5 MPa.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114976048A (en) * | 2022-05-12 | 2022-08-30 | 上海碳际实业集团有限公司 | Continuous production process of carbon fiber paper special for gas diffusion layer of fuel cell |
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