Liquid premixing mechanism for meta-aramid fiber production

Abstract

The utility model discloses a liquid premixing mechanism for meta-position aramid fiber production, which comprises a pressurizing tank, the pressurizing tank comprises a tank body, the bottom end of the tank body is provided with a liquid outlet, the bottom end of the tank body is provided with an opening and closing device outside the liquid outlet, one side of the opening and closing device far away from the tank body is fixedly provided with a liquid discharge distribution pipe, and the liquid discharge distribution pipe is provided with a liquid outlet. A piston is slidably mounted in the tank body, two guide rods are fixed to the side, far away from the closing device, of the piston, the ends, far away from the piston, of the guide rods movably extend out of the tank body, and force storage springs are mounted outside the guide rods. According to the utility model, the piston, the force storage spring and the transmission mechanism are ingeniously combined, so that automatic pressurization and discharge of waste water in the pressurization tank are realized. Along with pumping of the waste water, the piston is pushed and compresses the force storage spring, when the stored force reaches the maximum value, the spring releases energy to push the piston to move reversely, and pressurized discharge of the waste water is completed. The process does not need manual intervention, and automatic operation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of meta-aramid fiber production, in particular to a liquid premixing mechanism for meta-aramid fiber production. Background Art

[0002] Meta-aramid, scientifically known as polyisophthalamide (PMPA) fiber, is made by polycondensation of isophthaloyl chloride (IPC) and metaphenylenediamine (MPD). The molecular structure of meta-aramid fiber is:

[0003]

[0004] The production process of meta-aramid mainly includes two production processes: spinning solution preparation (polymerization process) and spinning. There are also auxiliary process steps - component cleaning process, solvent refining and recovery process, and post-processing process.

[0005] During the production process, when liquid raw materials need to be stirred and mixed, the prior art directly pumps multiple liquids into the reactor and then mixes them by stirring without a pre-mixing step. The subsequent stirring requires a longer time, thereby reducing the mixing efficiency. Utility Model Content

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A liquid premixing mechanism for producing meta-aramid fiber comprises a pressurized tank, wherein the pressurized tank comprises a tank body, a liquid discharge port is arranged at the bottom of the tank body, and an opener is arranged outside the liquid discharge port at the bottom of the tank body, and a liquid discharge distribution pipe is fixed to the side of the opener away from the tank body.

[0008] Preferably, a piston is slidably mounted inside the tank body, two guide rods are fixed to the side of the piston away from the shutter, one end of the guide rod away from the piston movably extends to the outside of the tank body, and a force storage spring is mounted outside the guide rod.

[0009] Preferably, a transmission column is fixed at the center position of one side of the piston away from the shutter, one end of the transmission column away from the piston extends to the outside of the tank body, and a guide groove is opened on the outside of the transmission column, and the guide groove extends along the spiral.

[0010] Preferably, a sleeve is rotatably mounted on the outer wall of the tank body, the sleeve is located outside the transmission column, a first gear is fixed outside the sleeve, a slide rod is fixed inside the sleeve, and the slide rod extends into the guide slot.

[0011] Preferably, a transmission shaft is fixed on the outside of the tank body. A second gear is fixed at one end of the transmission shaft close to the first gear. A third gear is rotatably installed between the first gear and the second gear on the outside of the tank body. The first gear and the second gear are respectively engaged with the third gear from both sides of the third gear.

[0012] Preferably, two reciprocating lead screws are rotatably installed inside the opener. A plug is also provided inside the opener. Two threaded sleeves are fixed on the plug. The two threaded sleeves are respectively threadedly installed on the outside of the two reciprocating lead screws. One end of the threaded sleeve extends to the outside of the opener and is fixed with a fourth gear. A double-sided toothed ring is rotatably installed on one side of the opener away from the tank body. The fourth gear is engaged with the inner ring of the double-sided toothed ring.

[0013] Preferably, a fifth gear and a sixth gear are respectively rotatably installed on the side wall of the opener. The rotating shaft of the fifth gear is connected to the transmission shaft through a one-way transmission. The sixth gear is located between the fifth gear and the double-sided toothed ring, and both the fifth gear and the double-sided toothed ring are engaged with the sixth gear.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By the ingenious combination of the piston, the energy storage spring and the transmission mechanism, the automatic pressurization and discharge of the wastewater inside the pressure tank are realized. As the wastewater is pumped in, the piston is pushed and the energy storage spring is compressed. When the energy storage reaches the maximum value, the spring releases energy to push the piston to move in the reverse direction, completing the pressurized discharge of the wastewater. This process does not require manual intervention and realizes automatic operation.

[0016] 2. Intelligent control of the liquid discharge port: Through the cooperation of the transmission shaft, the gear set and the one-way transmission, the intelligent control of the opener of the liquid discharge port is realized. When the piston moves to the left, the plug is driven to move horizontally through the transmission mechanism to block the liquid discharge port; when the piston moves to the leftmost end and starts to move in the reverse direction, the plug automatically opens to allow the pressurized wastewater to spray out. This design ensures that the wastewater is pressurized and sprayed out at the best time, further improving the mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is a perspective view of the present utility model;

[0019] Figure 2Cross-sectional view of the extraction tank of the present utility model;

[0020] Figure 3 Stereogram of the pressurization tank of the present utility model;

[0021] Figure 4 Front view of the pressurization tank of the present utility model;

[0022] Figure 5 First perspective cross-sectional view of the pressurization tank of the present utility model;

[0023] Figure 6 is Figure 5 Enlarged detail view of position A in;

[0024] Figure 7 Second perspective cross-sectional view of the pressurization tank of the present utility model;

[0025] Figure 8 is Figure 7 Enlarged detail view of the first state of position B in;

[0026] Figure 9 is Figure 7 Enlarged detail view of the second state of position B in;

[0027] Figure 10 Third perspective cross-sectional view of the pressurization tank of the present utility model;

[0028] Figure 11 is Figure 10 Enlarged detail view of position C in;

[0029] Figure 12 Enlarged cross-sectional view of the liquid discharge distribution pipe of the present utility model;

[0030] In the figure: 1 extraction tank, 101 extraction agent addition port, 102 discharge port, 103 motor, 104 stirrer, 2 pressurization tank, 201 tank body, 2011 liquid inlet pipe, 202 opener, 2021 hydraulic sensor, 203 liquid discharge distribution pipe, 2031 branch pipe, 2032 cylinder, 2033 baffle, 2034 injection head, 204 piston, 205 transmission column, 2051 guide chute, 206 guide rod, 2061 energy storage spring, 207 sleeve, 2071 first gear, 2072 slide bar, 3 third gear, 301 transmission shaft, 302 second gear, 303 one-way transmission, 304 fifth gear, 305 sixth gear, 4 reciprocating lead screw, 401 sealing plug, 402 threaded sleeve, 403 fourth gear, 404 double-sided toothed ring. Specific embodiments

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Example 1

[0033] Reference Figure 1-12 A liquid premixing mechanism for meta-aramid fiber production includes an extraction tank 1 and a pressure tank 2. The pressure tank 2 includes a tank body 201. A liquid inlet pipe 2011 is fixed to one side of the tank body 201. The bottom end of the tank body 201 extends to the inside of the extraction tank 1. An extractant adding port 101 is provided at the top of the extraction tank 1. A discharge port 102 is provided at the bottom of the extraction tank 1. A motor 103 is fixedly installed at one side of the extractant adding port 101 at the top of the extraction tank 1. The output end of the motor 103 extends into the extraction tank 1 and is fixed with a stirrer 104.

[0034] The extraction solvent is introduced into the extraction tank 1 through the extraction agent addition port 101, and the recovered waste water is introduced into the pressure tank 2 through the liquid inlet pipe 2011. After being pressurized by the pressure tank 2, it is sprayed toward the extraction solvent, thereby achieving the purpose of pre-mixing while introducing the waste water, thereby reducing the time for subsequent stirring and mixing and improving the extraction efficiency.

[0035] Example 2

[0036] Reference Figure 1-12 The difference between this embodiment and embodiment 1 is that a liquid discharge port is provided at the bottom end of the tank body 201, and an opener 202 is provided outside the liquid discharge port at the bottom end of the tank body 201, a liquid discharge distribution pipe 203 is fixed on the side of the opener 202 away from the tank body 201, a piston 204 is slidably mounted inside the tank body 201, two guide rods 206 are fixed on the side of the piston 204 away from the closet 202, one end of the guide rod 206 away from the piston 204 movably extends to the outside of the tank body 201, and a force storage spring 2061 is installed outside the guide rod 206;

[0037] When liquid is pumped into the pressurized tank 2 through the liquid inlet pipe 2011, the liquid pressure increases due to the increase of liquid inside the tank body 201, the piston 204 is pushed, and the force storage spring 2061 is compressed;

[0038] During the process of the piston 204 being pushed, the switch 202 is closed. When the energy storage spring 2061 is compressed to the maximum value, the switch 202 is opened at this time. Due to the elastic force of the energy storage spring 2061, it will push the piston 204 to move back, and also pressurize the waste water, so that the waste water accelerates and sprays out from the liquid discharge distribution pipe 203, thus achieving the purpose of pressurizing the waste water.

[0039] Embodiment 3

[0040] Refer to Figure 1-12 , the difference between this embodiment and Embodiment 2 is that a transmission column 205 is fixed at the central position on the side of the piston 204 away from the switch 202. One end of the transmission column 205 away from the piston 204 extends to the outside of the tank body 201, and a guiding chute 2051 is provided on the outer side of the transmission column 205, and the guiding chute 2051 extends along a spiral line;

[0041] During the process of the piston 204 being pushed, the transmission column 205 moves along with it. A sleeve 207 is rotatably installed on the outer wall of the tank body 201. The sleeve 207 is located outside the transmission column 205. A first gear 2071 is fixed on the outside of the sleeve 207, and a slide bar 2072 is fixed inside the sleeve 207. The slide bar 2072 extends into the guiding chute 2051. During the process of the transmission column 205 moving inside the sleeve 207, due to the limiting effect of the guiding chute 2051 on the slide bar 2072, it will drive the sleeve 207 to rotate.

[0042] Among them, a transmission shaft 301 is fixed on the outside of the tank body 201. A second gear 302 is fixed at one end of the transmission shaft 301 close to the first gear 2071. A third gear 3 is rotatably installed on the outside of the tank body 201 between the first gear 2071 and the second gear 302. The first gear 2071 and the second gear 302 are respectively engaged with the third gear 3 from both sides of the third gear 3;

[0043] When the sleeve 207 rotates, it can drive the transmission shaft 301 to rotate through the meshing transmission among the first gear 2071, the second gear 302 and the third gear 3.

[0044] Among them, two reciprocating lead screws 4 are rotatably installed inside the switch 202. A plug 401 is also provided inside the switch 202. Two threaded sleeves 402 are fixed on the plug 401. The two threaded sleeves 402 are respectively threadedly installed on the outside of the two reciprocating lead screws 4. One end of the threaded sleeve 402 extends to the outside of the switch 202 and is fixed with a fourth gear 403. A double-sided toothed ring 404 is rotatably installed on the side of the switch 202 away from the tank body 201. The fourth gear 403 is engaged with the inner ring of the double-sided toothed ring 404. When the double-sided toothed ring 404 rotates, it can drive the fourth gear 403 to rotate, and further drive the two reciprocating lead screws 4 to move horizontally, thereby driving the plug 401 to move horizontally.

[0045] Wherein, a fifth gear 304 and a sixth gear 305 are respectively rotatably installed on the side wall of the switch 202. The rotating shaft of the fifth gear 304 is connected to the transmission shaft 301 through a one-way transmission 303. The sixth gear 305 is located between the fifth gear 304 and the double-sided toothed ring 404, and both the fifth gear 304 and the double-sided toothed ring 404 are engaged with the sixth gear 305. When the transmission shaft 301 rotates, it will drive the fifth gear 304 to rotate unidirectionally, and then drive the plug 401 to move horizontally through the meshing of the fifth gear 304, the double-sided toothed ring 404 and the sixth gear 305. The one-way transmission 303 adopts the cooperation of ratchet and ratchet teeth to achieve the effect of one-way transmission. Only when the piston 204 moves to the left (refer to Figure 7 ), will it drive the plug 401 to move horizontally. And by adjusting the transmission ratio, it is ensured that during the process of the piston 204 moving to the left, the plug 401 just moves back and forth once. The moving range of the plug 401 refers to Figure 8 and Figure 9 two states. When pumping liquid into the tank body 201, the plug 401 is initially in the position in Figure 8 . At this time, as the liquid increases, the plug 401 moves to the left and directly blocks the liquid discharge port of the tank body 201, and continues to move to the left until it moves to the Figure 9 state and then moves to the right. When the piston 204 moves to the leftmost end, the plug 401 moves back to the Figure 8 state. At this time, since the plug 401 is separated from the liquid discharge port of the tank body 201, the liquid will be pressurized and ejected. Due to the existence of the one-way transmission 303, during the process of the piston 204 moving to the right to drain water, the plug 401 remains stationary. After discharging the liquid, a cycle is completed. Only by intermittently replenishing liquid into the tank body 201, it can automatically store energy and eject the liquid in the maximum state of energy storage, improving the mixing effect.

[0046] Embodiment 4

[0047] Referring to Figure 1-12 , the difference between this embodiment and Embodiment 2 is that a hydraulic sensor 2021 is installed outside the switch 202, and a plurality of branch pipes 2031 are connected to the liquid discharge distribution pipe 203, and spray heads 2034 are installed on the branch pipes 2031.

[0048] Wherein, the distances from the connection parts of the plurality of branch pipes 2031 to the liquid discharge distribution pipe 203 to the switch 202 are different and are equally spaced in sequence. A cylinder 2032 is fixed on the side of the liquid discharge distribution pipe 203 far away from the switch 202. The output shaft of the cylinder 2032 extends into the liquid discharge distribution pipe 203 and is fixed with a baffle 2033;

[0049] The baffle 2033 can be driven to move by the cylinder 2032, so that the on-off state of the branch pipe 2031 can be changed. When the hydraulic pressure sensor 2021 detects a low water pressure, some of the liquid discharge distribution pipes 203 can be closed, so that the water pressure sprayed by the remaining liquid discharge distribution pipes 203 will not be too low, ensuring the mixing effect.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0051] In the present invention, unless otherwise clearly defined and limited, the terms "set", "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] The control mode of the present invention is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The provision of power also belongs to the common knowledge in the art, and the present invention mainly aims to protect mechanical devices, so the control mode and circuit connection of the present invention will not be explained in detail.

[0053] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes an equivalent substitution or change, and should be covered by the protection scope of the present invention.

Claims

1. A liquid premixing mechanism for producing meta-aramid fibers, comprising a pressurized tank (2), characterized in that: The pressurized tank (2) comprises a tank body (201), a liquid discharge port is provided at the bottom end of the tank body (201), and an opener (202) is provided at the bottom end of the tank body (201) outside the liquid discharge port, and a liquid discharge distribution pipe (203) is fixed to a side of the opener (202) away from the tank body (201).

2. The liquid premixing mechanism for producing meta-aramid fiber according to claim 1, characterized in that: A piston (204) is slidably mounted inside the tank body (201), two guide rods (206) are fixed to a side of the piston (204) away from the shutter (202), one end of the guide rod (206) away from the piston (204) movably extends to the outside of the tank body (201), and a force storage spring (2061) is mounted outside the guide rod (206).

3. The liquid premixing mechanism for producing meta-aramid fiber according to claim 2, characterized in that: A transmission column (205) is fixed at the center position of one side of the piston (204) away from the shutter (202), and one end of the transmission column (205) away from the piston (204) extends to the outside of the tank body (201), and a guide groove (2051) is provided on the outer side of the transmission column (205), and the guide groove (2051) extends along the spiral.

4. The liquid premixing mechanism for producing meta-aramid fiber according to claim 3, characterized in that: A sleeve (207) is rotatably mounted on the outer wall of the tank body (201), the sleeve (207) is located outside the transmission column (205), a first gear (2071) is fixed outside the sleeve (207), a sliding rod (2072) is fixed inside the sleeve (207), and the sliding rod (2072) extends into the guide slide groove (2051).

5. The liquid premixing mechanism for producing meta-aramid fiber according to claim 4, characterized in that: A transmission shaft (301) is fixed on the outside of the tank body (201); a second gear (302) is fixed on one end of the transmission shaft (301) close to the first gear (2071); a third gear (3) is rotatably mounted on the outside of the tank body (201) between the first gear (2071) and the second gear (302); the first gear (2071) and the second gear (302) are respectively meshed with the third gear (3) from both sides of the third gear (3).

6. The liquid premixing mechanism for producing meta-aramid fiber according to claim 4, characterized in that: Two reciprocating screw rods (4) are rotatably mounted inside the shutter (202). A sealing plug (401) is also provided inside the shutter (202). Two threaded sleeves (402) are fixed on the sealing plug (401). The two threaded sleeves (402) are respectively threadedly mounted on the outside of the two reciprocating screw rods (4). One end of the threaded sleeve (402) extends to the outside of the shutter (202) and is fixed with a fourth gear (403). A double-sided gear ring (404) is rotatably mounted on the side of the shutter (202) away from the tank body (201). The fourth gear (403) is meshed with the inner ring of the double-sided gear ring (404).

7. The liquid premixing mechanism for producing meta-aramid fiber according to claim 6, characterized in that: A fifth gear (304) and a sixth gear (305) are rotatably mounted on the side walls of the shutter (202), respectively; the rotating shaft of the fifth gear (304) is connected to the transmission shaft (301) via a one-way transmission (303); the sixth gear (305) is located between the fifth gear (304) and the double-sided gear ring (404), and both the fifth gear (304) and the double-sided gear ring (404) are meshed with the sixth gear (305).

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