Carbon fiber slurry preparation device and carbon fiber felt preparation equipment

Abstract

The embodiment of the present invention provides a carbon fiber slurry preparation device and a carbon fiber felt preparation device. The carbon fiber slurry preparation device includes a first chamber, a second chamber, a first agitator, a second agitator and a slurry guide plate. The first chamber is connected to the second chamber. The first chamber is provided with a raw material inlet for feeding raw materials. The second chamber is provided with a slurry outlet for discharging slurry. At least part of the first agitator and a slurry guide plate are provided inside the first chamber. The slurry guide plates are arranged at intervals around the first agitator and are used to guide the raw materials and / or slurry to the first agitator. At least part of the second agitator is provided inside the second chamber. Therefore, the carbon fiber slurry prepared by the carbon fiber slurry preparation device of the embodiment of the present invention has high uniformity.

Description

Technical Field

[0001] The invention relates to the field of carbon fiber felt, and in particular to a carbon fiber slurry preparation device and carbon fiber felt preparation equipment. Background Art

[0002] The gas diffusion layer is the core component of the fuel cell and is made of carbon paper with a porous structure and non-woven properties. Carbon fiber felt is the basis for preparing carbon paper. In the related art, carbon fiber felt is prepared by a wet preparation process, and then carbon paper is further prepared. However, the carbon fiber felt prepared in the related art has poor uniformity, resulting in a low yield rate of carbon paper and high cost. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention provides a carbon fiber slurry preparation device.

[0005] An embodiment of the present invention further provides a carbon fiber felt preparation device.

[0006] The carbon fiber slurry preparation device of the embodiment of the present invention comprises:

[0007] A first chamber, a second chamber, a first agitator, a second agitator and a slurry guide plate, the first chamber is communicated with the second chamber, the first chamber is provided with a raw material inlet for feeding raw materials, the second chamber is provided with a slurry outlet for discharging slurry, at least a portion of the first agitator and the slurry guide plate are provided inside the first chamber, the slurry guide plates are multiple and arranged around the first agitator at intervals, and are used to guide the raw materials and / or slurry to the first agitator, and at least a portion of the second agitator is provided inside the second chamber.

[0008] In the carbon fiber slurry preparation device of the embodiment of the present invention, the first chamber receives the raw material and stirs the raw material through the first stirrer to initially form slurry. The raw material and the initially formed slurry are guided by the slurry guide plate during the stirring process to remain near the first stirrer for a long time, so that the first stirrer fully stirs and improves the uniformity of the slurry. The slurry discharged from the first chamber enters the second chamber and is further stirred by the second stirrer to improve the uniformity of the slurry. Therefore, the carbon fiber slurry prepared by the carbon fiber slurry preparation device of the embodiment of the present invention has high uniformity.

[0009] In some embodiments, the slurry guide plate is arc-shaped, a distal end of the slurry guide plate away from the first agitator is higher than a proximal end of the slurry guide plate close to the first agitator, and / or a center of the arc of the slurry guide plate is higher than the slurry guide plate.

[0010] In some embodiments, the carbon fiber slurry preparation device also includes a container and a partition, the partition is arranged in the inner cavity of the container to separate the inner cavity of the container into the first chamber and the second chamber, the second chamber includes a top layer part and a bottom layer part, the bottom layer part is arranged side by side with the first chamber, the top layer part is located above the bottom layer part and the first chamber, and the top layer part and the bottom layer part are both provided with the second agitator.

[0011] In some embodiments, the carbon fiber slurry preparation device also includes an air supply part, an air inlet is provided at one end of the top layer part located above the first chamber, the air inlet is connected to the air supply part, and an air outlet and the slurry outlet are provided at the other end of the top layer part located above the bottom layer part.

[0012] In some embodiments, the carbon fiber slurry preparation device also includes a connecting pipe, which is provided with a top inlet and a bottom outlet. The connecting pipe is arranged on the partition, and the top inlet of the connecting pipe is connected to the top of the first chamber, and the bottom outlet of the connecting pipe is connected to the bottom end of the bottom part.

[0013] In some embodiments, the raw material inlet is disposed at the bottom of the first chamber.

[0014] In some embodiments, a protrusion is provided on the top of the container, and a plurality of the air outlets are provided on the top surface of the protrusion.

[0015] The carbon fiber felt preparation device according to the embodiment of the present invention comprises: the carbon fiber slurry preparation device according to any one of the above embodiments.

[0016] The carbon fiber felt preparation equipment of the embodiment of the present invention has the carbon fiber slurry preparation device of the embodiment of the present invention, and the carbon fiber slurry preparation device is used to obtain carbon fiber slurry with high uniformity to prepare carbon fiber felt, and the prepared carbon fiber felt has high uniformity.

[0017] In some embodiments, the carbon fiber felt preparation equipment also includes a diffuser, a turbulence generator and an inclined mesh device. The slurry outlet of the carbon fiber slurry preparation device, the diffuser and the turbulence generator are connected in sequence. The turbulence generator is provided with a slurry discharge port, and the slurry discharge port is arranged opposite to the inclined mesh device.

[0018] In some embodiments, the diffuser includes a diffusion chamber, a first nozzle and a second nozzle, the first nozzle and the second nozzle are both connected to the slurry outlet to obtain the slurry discharged from the slurry outlet, a number of the first nozzles are arranged at the first end of the diffusion chamber in the horizontal direction, a number of the second nozzles are arranged at the second end of the diffusion chamber in the horizontal direction, a number of the first nozzles and a number of the second nozzles are arranged opposite to each other, and the first nozzle and the second nozzle are both used to spray the slurry into the diffusion chamber.

[0019] In some embodiments, the diffuser further includes a first diversion chamber and a second diversion chamber, the first diversion chamber and the second diversion chamber are both provided with an interface for connecting the slurry outlet, the first diversion chamber is provided at the first end of the diffusion chamber in the horizontal direction, and is connected to a plurality of the first nozzles to divert a portion of the slurry discharged from the slurry outlet to the plurality of the first nozzles, and the second diversion chamber is provided at the second end of the diffusion chamber in the horizontal direction, and is connected to a plurality of the second nozzles to divert another portion of the slurry discharged from the slurry outlet to the plurality of the second nozzles.

[0020] In some embodiments, the turbulence generator includes a turbulence chamber, a first turbulence plate and a second turbulence plate, the turbulence chamber is provided with the slurry discharge port, and one end of the turbulence chamber is connected to the diffuser, the first turbulence plate extends downward from the top of the turbulence chamber, and at least the bottom of the first turbulence plate is serrated, the second turbulence plate extends upward from the bottom of the turbulence chamber, and at least the top of the second turbulence plate is serrated, and the first turbulence plate and the second turbulence plate are alternately arranged in the direction from one end of the turbulence chamber to the slurry discharge port.

[0021] In some embodiments, the inclined mesh device includes a first roller, a second roller and a mesh belt, the first roller is arranged adjacent to the slurry discharge port of the turbulence generator, the second roller is arranged away from the slurry discharge port of the turbulence generator, and the second roller is higher than the first roller, and the mesh belt is wrapped around the first roller and the second roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of a carbon fiber slurry preparation device according to an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 A schematic top view of a carbon fiber slurry preparation device;

[0024] Figure 3 is a schematic diagram of a carbon fiber felt preparation device according to an embodiment of the present invention;

[0025] Figure 4 yes Figure 3 Side cutaway view of the center diffuser;

[0026] Figure 5 yes Figure 3 Side cross-sectional view of the turbulence generator.

[0027] Reference numerals:

[0028] 10. Carbon fiber slurry preparation device; 1. first chamber; 11. raw material inlet; 2. second chamber; 21. slurry outlet; 22. top layer; 23. bottom layer; 24. air inlet; 25. air outlet; 3. first agitator; 4. second agitator; 5. slurry guide plate; 6. container; 61. protrusion; 7. partition; 8. connecting pipe;

[0029] 20, diffuser; 201, diffusion chamber; 202, first nozzle; 203, second nozzle; 204, first flow distribution chamber; 205, second flow distribution chamber; 206, interface;

[0030] 30. Turbulence generator; 301. Slurry discharge port; 302. Turbulence chamber; 303. First turbulence plate; 304. Second turbulence plate;

[0031] 40. Inclined mesh device; 401. First roller; 402. Second roller; 403. Mesh belt.

[0032] 50. Vibrator. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0034] Reference below Figure 1-Figure 5 A carbon fiber slurry preparation device and a carbon fiber felt preparation device according to an embodiment of the present invention are described.

[0035] like Figure 1-Figure 5 As shown, the carbon fiber slurry preparation device 10 according to an embodiment of the present invention includes a first chamber 1, a second chamber 2, a first agitator 3, a second agitator 4 and a slurry guide plate 5.

[0036] The first chamber 1 is communicated with the second chamber 2. The first chamber 1 is provided with a raw material inlet 11 for supplying raw materials, and the second chamber 2 is provided with a slurry outlet 21 for discharging slurry. At least a portion of a first agitator 3 and a slurry guide plate 5 are provided inside the first chamber 1. The slurry guide plates 5 are multiple and arranged at intervals around the first agitator 3, and are used to guide the raw materials and / or slurry to the first agitator 3. At least a portion of a second agitator 4 is provided inside the second chamber 2.

[0037] When the carbon fiber slurry preparation device 10 is used, the raw material for preparing the carbon fiber slurry enters the first chamber 1 from the raw material inlet 11, and then is stirred by the first stirrer 3 in the first chamber 1 to initially form a slurry. The raw material and the initially formed slurry are guided by the slurry guide plate 5 during the stirring process by the first stirrer 3, so as to remain near the first stirrer 3 for a long time, so as to be fully stirred by the first stirrer 3 and improve the uniformity of the slurry. The slurry discharged from the first chamber 1 enters the second chamber 2, and then is further stirred by the second stirrer 4 in the second chamber 2 to improve the uniformity of the slurry. The slurry fully stirred by the second stirrer 4 is arranged by the slurry outlet 21 for preparing the carbon fiber felt.

[0038] Therefore, the carbon fiber slurry prepared by the carbon fiber slurry preparation device of the embodiment of the present invention has higher uniformity, and the carbon fiber felt prepared thereby can have higher uniformity.

[0039] In some embodiments, the pulp guide plate 5 is arc-shaped, the distal end of the pulp guide plate 5 away from the first agitator 3 is higher than the proximal end of the pulp guide plate 5 close to the first agitator 3 , and / or the arc center of the pulp guide plate 5 is higher than the pulp guide plate 5 .

[0040] like Figure 1 As shown, the first agitator 3 is arranged in the vertical direction, and a plurality of pulp guide plates 5 are arranged at intervals around the first agitator 3, and the pulp guide plates 5 are arc-shaped.

[0041] The pulp guide plate 5 has a distal end and a proximal end which are arranged relatively to each other in the horizontal direction. The distal end of the pulp guide plate 5 is farther away from the first agitator 3 than the proximal end of the pulp guide plate 5. The distal end of the pulp guide plate 5 is higher than the proximal end of the pulp guide plate 5, so that the pulp guide plate 5 can guide the raw material and / or slurry to flow toward the first agitator 3 so that it can be stirred by the first agitator 3 for a longer time, thereby being fully stirred by the first agitator 3 and having a higher uniformity.

[0042] The arc center of the pulp guide plate 5 is higher than the pulp guide plate 5, in other words, the pulp guide plate 5 is a downwardly protruding arc plate, so that the pulp guide plate 5 can guide the raw material and / or slurry to flow toward the first stirrer 3, so that the raw material and / or slurry is stirred by the first stirrer 3 for a long time, so that the raw material and / or slurry is stirred by the first stirrer 3 sufficiently and has a high uniformity.

[0043] In some embodiments, the carbon fiber slurry preparation device 10 of the embodiment of the present invention also includes a container 6 and a partition 7. The partition 7 is arranged in the inner cavity of the container 6 to separate the inner cavity of the container 6 into a first chamber 1 and a second chamber 2. The second chamber 2 includes a top portion 22 and a bottom portion 23. The bottom portion 23 is arranged side by side with the first chamber 1. The top portion 22 is located above the bottom portion 23 and the first chamber 1. The top portion 22 and the bottom portion 23 are both provided with a second agitator 4.

[0044] like Figure 1As shown, the carbon fiber slurry preparation device 10 also includes a container 6 and a partition 7. The partition 7 is arranged in the inner cavity of the container 6 to separate the inner cavity of the container 6 into a first chamber 1 and a second chamber 2.

[0045] The partition 7 includes a horizontal section and a vertical section. The horizontal section extends in the horizontal direction, and the vertical section extends downward from the right end of the horizontal section. The first chamber 1 is formed below the horizontal section and on the left side of the vertical section. The side of the partition 7 facing away from the first chamber 1 forms a second chamber 2. The second chamber 2 includes a bottom portion 23 located on the right side of the vertical section, and also includes a top portion 22 located above the bottom portion 23 and the horizontal section.

[0046] Both the top portion 22 and the bottom portion 23 are provided with a second agitator 4. Preferably, the top portion 22 is provided with a second agitator 4 extending in the vertical direction, and the bottom portion 23 is provided with another second agitator 4 extending in the horizontal direction. Both second agitators 4 are provided on the container 6, and the first agitator 3 is provided on the horizontal section of the partition 7.

[0047] The first chamber 1 and the second chamber 2 are separated in the container 6 by the partition 7, so that the carbon fiber slurry preparation device 10 has a small and compact structural volume, which facilitates the slurry to enter the second chamber 2 from the first chamber 1 and prevents the slurry from settling in the process of flowing from the first chamber 1 to the second chamber 2. The second agitator 4 is provided on both the top portion 22 and the bottom portion 23 to ensure that the slurry is fully stirred in the second chamber 2 to have a high uniformity, while preventing the slurry from settling in the second chamber 2.

[0048] It is understandable that, in other embodiments, two containers may be provided to form the first chamber and the second chamber respectively.

[0049] In some embodiments, the carbon fiber slurry preparation device 10 of the embodiment of the present invention also includes an air supply part (not shown in the figure), and an air inlet 24 is provided at one end of the top layer part 22 located above the first chamber 1, and the air inlet 24 is connected to the air supply part, and an air outlet 25 and a slurry outlet 21 are provided at the other end of the top layer part 22 located above the bottom layer part 23.

[0050] like Figure 1 and Figure 2 As shown, the left end of the top layer 22 is provided with an air inlet 24, and the air inlet 24 is preferably but not limited to being arranged along the front-to-back direction (such as Figure 1 The top layer 22 is a strip extending in a direction perpendicular to the paper surface as shown, and an air outlet 25 and a slurry outlet 21 are provided at the right end of the top layer portion 22. The air supply member is preferably but not limited to an air pump, and the air supply member is connected to the air inlet 24 to supply gas into the second chamber 2 through the air inlet 24. The gas flows from left to right in the second chamber 2 and is discharged from the air outlet 25.

[0051] On the one hand, the gas supplied into the second chamber 2 by the gas supply member plays a stirring role on the slurry. The gas and the second agitator 4 cooperate to stir the slurry to ensure that the slurry forms a high uniformity. On the other hand, the gas also plays a role in pushing the slurry in the top layer 22 to flow toward the slurry outlet 21, so that the slurry located at the left end of the top layer 22, in other words, the slurry located above the horizontal section of the partition 7 can be discharged from the slurry outlet 21, avoiding the formation of a dead corner for slurry accumulation at the left end of the top layer 22.

[0052] In some embodiments, the carbon fiber slurry preparation device 10 of the embodiment of the present invention also includes a connecting pipe 8, which is provided with a top inlet and a bottom outlet. The connecting pipe 8 is arranged on the partition 7, and the top inlet of the connecting pipe 8 is connected to the top of the first chamber 1, and the bottom outlet of the connecting pipe 8 is connected to the bottom end of the bottom part 23.

[0053] like Figure 1 As shown, the connecting pipe 8 is arranged in the bottom part 23 and extends in the vertical direction. The top of the connecting pipe 8 is connected to the vertical section of the partition 7, and the top inlet of the connecting pipe 8 is connected to the top of the first chamber 1, and the bottom outlet of the connecting pipe 8 is connected to the bottom end of the bottom part 23.

[0054] The stirred slurry in the first chamber 1 enters the top inlet of the connecting pipe 8 from the top of the first chamber 1, then flows along the connecting pipe 8, and is discharged from the bottom outlet of the connecting pipe 8 to the bottom end of the bottom part 23. The top inlet of the connecting pipe 8 ensures that the slurry entering from the first chamber 1 is the slurry that has been fully stirred by the first stirrer 3, and the bottom outlet of the connecting pipe 8 discharges the slurry from the bottom end of the bottom part 23 to the second chamber 2, which can prevent the slurry in the second chamber 2 from generating foam.

[0055] In some embodiments, the raw material inlet 11 is disposed at the bottom of the first chamber 1 .

[0056] like Figure 1 As shown, a raw material inlet 11 is provided at the bottom of the left end of the first chamber 1. The raw material enters the first chamber 1 from the bottom of the first chamber 1 and is then discharged from the top of the first chamber 1 through the connecting pipe 8, thereby preventing the slurry in the first chamber 1 from generating foam.

[0057] In some embodiments, a protrusion 61 is disposed on the top of the container 6 , and a plurality of air outlets 25 are disposed on the top surface of the protrusion 61 .

[0058] like Figure 1 and Figure 2As shown, a protrusion 61 is provided on the top of the container 6. The protrusion 61 is preferably but not limited to a tube body with a closed top. The tube cavity of the protrusion 61 is connected to the right end of the top layer part 22, and the protrusion 61 is located on the left side of the gas outlet 25. A plurality of gas outlets 25 are provided on the top surface of the protrusion 61. The gas in the slurry is discharged through the gas outlet 25 before the slurry is discharged from the slurry outlet 21.

[0059] Providing the gas outlet 25 on the protrusion 61 can prevent the slurry from being discharged from the gas outlet 25 along with the gas.

[0060] Reference below Figure 1-Figure 5 A carbon fiber felt preparation apparatus according to an embodiment of the present invention is described.

[0061] like Figure 1-Figure 5 As shown, the carbon fiber felt preparation equipment according to the embodiment of the present invention includes the carbon fiber slurry preparation device 10 according to the embodiment of the present invention.

[0062] The carbon fiber felt preparation equipment of the embodiment of the present invention has the carbon fiber slurry preparation device of the embodiment of the present invention, and the carbon fiber slurry preparation device is used to obtain carbon fiber slurry with high uniformity to prepare carbon fiber felt, and the prepared carbon fiber felt has high uniformity.

[0063] In some embodiments, the carbon fiber felt preparation equipment of the embodiment of the present invention also includes a diffuser 20, a turbulence generator 30 and an inclined mesh device 40. The slurry outlet 21 of the carbon fiber slurry preparation device 10, the diffuser 20 and the turbulence generator 30 are connected in sequence. The turbulence generator 30 is provided with a slurry discharge port 301, and the slurry discharge port 301 is arranged opposite to the inclined mesh device 40.

[0064] like Figure 3 As shown, the diffuser 20 and the turbulence generator 30 are arranged on the bracket, the slurry outlet 21 of the carbon fiber slurry preparation device 10 is connected with the diffuser 20 through a pipeline, the outlet end of the diffuser 20 is connected with the inlet end of the turbulence generator 30, and the turbulence generator 30 is provided with a slurry discharge port 301, and the slurry discharge port 301 is arranged opposite to the inclined mesh device 40.

[0065] When the carbon fiber felt preparation equipment is in use, the carbon fiber slurry preparation device 10 prepares the raw material into a slurry with high uniformity and discharges it from the slurry outlet 21, and then supplies it to the diffuser 20 through a pipeline to form turbulence for the first mixing process. The diffuser 20 supplies the slurry to the turbulence generator 30 to form turbulence for the second mixing process. The turbulence generator 30 discharges the slurry from the slurry discharge port 301 to the inclined mesh device 40, so that the slurry forms a carbon fiber felt on the inclined mesh device 40, and the carbon fiber felt has high uniformity. At the same time, the diffuser 20 and the turbulence generator 30 cooperate to make the difference between the longitudinal tensile strength and the transverse tensile strength of the carbon fiber felt low, so that the carbon fiber felt has high strength, thereby meeting the requirements for preparing carbon paper for fuel cells.

[0066] In some embodiments, the diffuser 20 includes a diffusion chamber 201, a first nozzle 202 and a second nozzle 203. The first nozzle 202 and the second nozzle 203 are both connected to the slurry outlet 21 to obtain the slurry discharged from the slurry outlet 21. A plurality of first nozzles 202 are arranged at the first end of the diffusion chamber 201 in the horizontal direction, and a plurality of second nozzles 203 are arranged at the second end of the diffusion chamber 201 in the horizontal direction. The plurality of first nozzles 202 and the plurality of second nozzles 203 are arranged opposite to each other, and the first nozzle 202 and the second nozzle 203 are both used to spray slurry into the diffusion chamber 201.

[0067] like Figure 3 and Figure 4 As shown, the diffuser 20 includes a diffusion chamber 201 , a first nozzle 202 and a second nozzle 203 .

[0068] A plurality of first nozzles 202 are provided at the front end of the diffusion chamber 201. The first nozzles 202 are preferably multiple, and more preferably are arranged in two rows spaced apart in the vertical direction, each row having three first nozzles 202 spaced apart in the horizontal direction.

[0069] A plurality of second nozzles 203 are provided at the rear end of the diffusion chamber 201. The second nozzles 203 are preferably multiple, and more preferably arranged in two rows spaced apart in the vertical direction, each row having three second nozzles 203 spaced apart in the left-right direction.

[0070] The first nozzle 202 and the second nozzle 203 both extend in the front-to-back direction, and the six first nozzles 202 are arranged opposite to the six second nozzles 203 . In other words, each first nozzle 202 is provided with a corresponding second nozzle 203 in the extending direction.

[0071] The first nozzle 202 and the second nozzle 203 are both connected to the slurry outlet 21. The slurry discharged from the slurry outlet 21 is supplied to the first nozzle 202 and the second nozzle 203 through a pipeline. The first nozzle 202 sprays slurry from front to back into the diffusion chamber 201, and the second nozzle 203 sprays slurry from back to front into the diffusion chamber 201. The slurry sprayed from the first nozzle 202 collides with the slurry sprayed from the second nozzle 203 in the diffusion chamber 201 to generate turbulence, so that a part of the carbon fibers in the slurry are arranged in the transverse direction, ensuring that the carbon fiber felt has a higher transverse tensile strength.

[0072] In some embodiments, the diffuser 20 further includes a first diversion chamber 204 and a second diversion chamber 205, both of which are provided with an interface 206 for connecting to the slurry outlet 21, the first diversion chamber 204 is provided at the first end of the diffusion chamber 201 in the horizontal direction, and is connected to a plurality of first nozzles 202 to divert a portion of the slurry discharged from the slurry outlet 21 to the plurality of first nozzles 202, the second diversion chamber 205 is provided at the second end of the diffusion chamber 201 in the horizontal direction, and is connected to a plurality of second nozzles 203 to divert another portion of the slurry discharged from the slurry outlet 21 to the plurality of second nozzles 203.

[0073] like Figure 3 and Figure 4 As shown, the diffuser 20 further includes a first flow distribution chamber 204 and a second flow distribution chamber 205 .

[0074] A first flow distribution chamber 204 is disposed at the front end of the diffusion chamber 201 . The first flow distribution chamber 204 is communicated with the front ends of the six first nozzles 202 . An interface 206 is disposed at the front end of the first flow distribution chamber 204 .

[0075] A second flow distribution chamber 205 is provided at the rear end of the diffusion chamber 201 . The second flow distribution chamber 205 is communicated with the rear ends of the six second nozzles 203 . Another interface 206 is provided at the rear end of the second flow distribution chamber 205 .

[0076] The interface 206 of the first diversion chamber 204 and the interface 206 of the second diversion chamber 205 are both connected to the slurry outlet 21 through pipelines. In other words, the interface 206 of the first diversion chamber 204 and the interface 206 of the second diversion chamber 205 are connected in parallel to the slurry outlet 21.

[0077] The slurry discharged from the slurry outlet 21 enters the first diverter chamber 204 and the second diverter chamber 205 at the same time. The first diverter chamber 204 diverts the slurry and supplies it to the six first nozzles 202 for spraying, and the second diverter chamber 205 diverts the slurry and supplies it to the six second nozzles 203 for spraying. This ensures that the first nozzle 202 and the second nozzle 203 continuously spray the slurry. Preferably, the pressure of the slurry sprayed from the first nozzle 202 is the same as the pressure of the slurry sprayed from the second nozzle 203, so as to better form turbulence, so that a part of the carbon fibers in the slurry are better arranged in the transverse direction.

[0078] In some embodiments, the turbulence generator 30 includes a turbulence chamber 302, a first turbulence plate 303 and a second turbulence plate 304. The turbulence chamber 302 is provided with a slurry discharge port 301, and one end of the turbulence chamber 302 is connected to the diffuser 20. The first turbulence plate 303 extends downward from the top of the turbulence chamber 302, and at least the bottom of the first turbulence plate 303 is serrated. The second turbulence plate 304 extends upward from the bottom of the turbulence chamber 302, and at least the top of the second turbulence plate 304 is serrated. The first turbulence plate 303 and the second turbulence plate 304 are alternately arranged in the direction from one end of the turbulence chamber 302 to the slurry discharge port 301.

[0079] like Figure 3 and Figure 5 As shown, the turbulence generator 30 includes a turbulence chamber 302 , a first turbulence plate 303 and a second turbulence plate 304 .

[0080] The left end of the turbulence chamber 302 is connected to the right end of the diffuser 20 to obtain the slurry discharged from the diffuser 20 . A slurry discharge port 301 is provided at the bottom of the right end of the turbulence chamber 302 to discharge the slurry toward the inclined screen device 40 .

[0081] The top of the turbulence chamber 302 is provided with a first turbulence plate 303 extending downward, and the bottom of the turbulence chamber 302 is provided with a second turbulence plate 304 extending upward. Both the first turbulence plate 303 and the second turbulence plate 304 are strip-shaped extending in the front-to-back direction. The entire or bottom of the first turbulence plate 303 is serrated. In other words, the entire or bottom of the first turbulence plate 303 is provided with a plurality of sharp teeth arranged in sequence in the front-to-back direction. The entire or top of the second turbulence plate 304 is serrated. In other words, the entire or top of the second turbulence plate 304 is provided with a plurality of sharp teeth arranged in sequence in the front-to-back direction.

[0082] A plurality of first turbulence plates 303 and a plurality of second turbulence plates 304 are located between the left end of the turbulence chamber 302 and the slurry discharge port 301, and the first turbulence plates 303 and the second turbulence plates 304 are alternately arranged in the left and right directions. Preferably, there is a certain distance between the first turbulence plates 303 and the second turbulence plates 304 in the vertical direction.

[0083] When the slurry flows from the left end of the turbulence chamber 302 to the slurry discharge port 301, it passes through the alternately arranged first turbulence plates 303 and second turbulence plates 304 to generate turbulence in the slurry. At the same time, the serrated shape of the first turbulence plates 303 and the second turbulence plates 304 also arranges the carbon fibers in the slurry, so that another part of the carbon fibers in the slurry are arranged longitudinally, ensuring that the carbon fiber felt has a higher longitudinal tensile strength.

[0084] In some embodiments, the inclined mesh device 40 includes a first roller 401, a second roller 402 and a mesh belt 403. The first roller 401 is arranged adjacent to the slurry discharge port 301 of the turbulence generator 30, the second roller 402 is arranged away from the slurry discharge port 301 of the turbulence generator 30, and the second roller 402 is higher than the first roller 401. The mesh belt 403 is wrapped around the first roller 401 and the second roller 402.

[0085] like Figure 3 As shown, the inclined screen device 40 includes a first roller 401, a second roller 402 and a mesh belt 403. The first roller 401 and the second roller 402 are arranged in parallel and at intervals, and the axial directions of the first roller 401 and the second roller 402 are both in the front-to-back direction. The first roller 401 is arranged closer to the slurry discharge port 301 than the second roller 402, and the second roller 402 is located above the first roller 401 to the right.

[0086] The mesh belt 403 is wrapped around the first roller 401 and the second roller 402, and rotates around the first roller 401 and the second roller 402 driven by the first roller 401 or the second roller 402. The mesh belt 403 located at the top of the first roller 401 and the second roller 402 moves from the first roller 401 to the second roller 402, and passes through the slurry discharge port 301 to receive the slurry discharged from the slurry discharge port 301. The slurry discharged from the slurry discharge port 301 falls on the mesh belt 403, and forms a carbon fiber felt on the mesh belt 403 as the mesh belt 403 rotates.

[0087] It should be noted that the "longitudinal" in the longitudinal tensile strength and the longitudinal arrangement of carbon fibers refers to the portion of the mesh belt 403 located at the top of the first roller 401 and the second roller 402 along the direction from the first roller 401 to the second roller 402. In other words, it is the length direction of the carbon fiber felt formed on the mesh belt 403.

[0088] The "transverse" in the transverse tensile strength and the transverse arrangement of carbon fibers refers to the direction perpendicular to the mesh belt 403 located at the top of the first roller 401 and the second roller 402 along the direction from the first roller 401 to the second roller 402. In other words, it is the width direction of the carbon fiber felt formed on the mesh belt 403.

[0089] In some embodiments, the carbon fiber felt preparation device according to the embodiment of the present invention further includes a vibrator 50 , and the vibrator 50 is disposed on the turbulence generator 30 .

[0090] like Figure 3 As shown, a vibrator 50 is provided on the turbulence generator 30, and the vibrator 50 is used to vibrate the slurry in the turbulence generator 30, so as to improve the dispersion effect of the slurry and ensure the surface state and uniformity of the carbon felt.

[0091] In some embodiments, the vibrator 50 is an ultrasonic generator, and the ultrasonic generator is arranged corresponding to the first turbulence plates 303 and the second turbulence plates 304 which are arranged alternately.

[0092] like Figure 3 As shown, the vibrator 50 is an ultrasonic generator, which is arranged at the bottom of the alternately arranged first turbulence plates 303 and the second turbulence plates 304, so that the slurry is vibrated when passing through the first turbulence plates 303 and the second turbulence plates 304, thereby improving the dispersion effect of the slurry and ensuring the surface state and uniformity of the carbon felt.

[0093] Preferably, the frequency of the ultrasonic generator is 20KHz to 60KHz.

[0094] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0095] In addition, the terms "first" and "second" are only used for distinction, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0096] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0097] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0098] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0099] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A carbon fiber slurry preparation device, characterized in that: include: A first chamber (1), a second chamber (2), a first agitator (3), a second agitator (4) and a slurry guide plate (5), wherein the first chamber (1) is connected to the second chamber (2), the first chamber (1) is provided with a raw material inlet (11) for feeding raw materials, the second chamber (2) is provided with a slurry outlet (21) for discharging slurry, at least part of the first agitator (3) and the slurry guide plate (5) are provided inside the first chamber (1), a plurality of the slurry guide plates (5) are arranged at intervals around the first agitator (3) and are used to guide the raw materials and / or slurry to the first agitator (3), and at least part of the second agitator (4) is provided inside the second chamber (2).

2. The carbon fiber slurry preparation device according to claim 1, characterized in that: The slurry guide plate (5) is arc-shaped, and the distal end of the slurry guide plate (5) away from the first agitator (3) is higher than the proximal end of the slurry guide plate (5) close to the first agitator (3), and / or the arc center of the slurry guide plate (5) is higher than the slurry guide plate (5).

3. The carbon fiber slurry preparation device according to claim 1, characterized in that: The invention also comprises a container (6) and a partition (7), wherein the partition (7) is arranged in the inner cavity of the container (6) to separate the inner cavity of the container (6) into the first chamber (1) and the second chamber (2), wherein the second chamber (2) comprises a top portion (22) and a bottom portion (23), wherein the bottom portion (23) is arranged side by side with the first chamber (1), and the top portion (22) is located above the bottom portion (23) and the first chamber (1), and the top portion (22) and the bottom portion (23) are both provided with the second agitator (4).

4. The carbon fiber slurry preparation device according to claim 3, characterized in that: The invention also comprises an air supply member, wherein an air inlet (24) is provided at one end of the top layer portion (22) located above the first chamber (1), and the air inlet (24) is connected to the air supply member, and an air outlet (25) and the slurry outlet (21) are provided at the other end of the top layer portion (22) located above the bottom layer portion (23).

5. The carbon fiber slurry preparation device according to claim 3, characterized in that: It also comprises a connecting pipe (8), the connecting pipe (8) being provided with a top inlet and a bottom outlet, the connecting pipe (8) being provided on the partition plate (7), the top inlet of the connecting pipe (8) being in communication with the top of the first chamber (1), and the bottom outlet of the connecting pipe (8) being in communication with the bottom end of the bottom layer (23); and / or The raw material inlet (11) is arranged at the bottom of the first chamber (1).

6. A carbon fiber felt preparation device, characterized in that: include: The carbon fiber slurry preparation device (10) according to any one of claims 1 to 5.

7. The carbon fiber felt preparation device according to claim 6, characterized in that: The device also includes a diffuser (20), a turbulence generator (30) and an inclined mesh device (40); the slurry outlet (21) of the carbon fiber slurry preparation device (10), the diffuser (20) and the turbulence generator (30) are connected in sequence; the turbulence generator (30) is provided with a slurry discharge port (301), and the slurry discharge port (301) is arranged opposite to the inclined mesh device (40).

8. The carbon fiber felt preparation device according to claim 7, characterized in that: The diffuser (20) comprises a diffusion chamber (201), a first nozzle (202) and a second nozzle (203); the first nozzle (202) and the second nozzle (203) are both connected to the slurry outlet (21) to obtain the slurry discharged from the slurry outlet (21); a plurality of the first nozzles (202) are arranged at a first end of the diffusion chamber (201) in a horizontal direction; a plurality of the second nozzles (203) are arranged at a second end of the diffusion chamber (201) in a horizontal direction; a plurality of the first nozzles (202) and a plurality of the second nozzles (203) are arranged opposite to each other; and the first nozzle (202) and the second nozzle (203) are both used to spray the slurry into the diffusion chamber (201).

9. The carbon fiber felt preparation device according to claim 7, characterized in that: The turbulence generator (30) comprises a turbulence chamber (302), a first turbulence plate (303) and a second turbulence plate (304); the turbulence chamber (302) is provided with the slurry discharge port (301), and one end of the turbulence chamber (302) is connected to the diffuser (20); the first turbulence plate (303) extends downward from the top of the turbulence chamber (302), and at least the bottom of the first turbulence plate (303) is serrated; the second turbulence plate (304) extends upward from the bottom of the turbulence chamber (302), and at least the top of the second turbulence plate (304) is serrated; the first turbulence plate (303) and the second turbulence plate (304) are alternately arranged in a direction from one end of the turbulence chamber (302) to the slurry discharge port (301).

10. The carbon fiber felt preparation device according to claim 7, characterized in that: It also includes a vibrator (50), wherein the vibrator (50) is arranged on the turbulence generator (30).

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