Dehydration device for chinlon slices

Abstract

The embodiment of the utility model provides a dehydration device for chinlon chips, and relates to the technical field of chemical fiber production equipment. The dewatering device comprises: a box body having a feed port, a discharge port and a water outlet; the slice redistributor is mounted in the box body and is arranged close to the feeding hole; the arc-shaped screen is mounted in the box body; the arc-shaped screen is positioned between the slice redistributor and the discharge hole; the arc-shaped screen is used for dividing the space in the box body into a first chamber and a second chamber, the first chamber is communicated with the discharge port, and the second chamber is communicated with the water outlet; the arc-shaped screen is provided with a plurality of uniformly distributed screen holes; the mixture of the chinlon chips sprayed from the chip redistributor and the water can move to the arc-shaped screen to be screened; water in the mixture passes through sieve holes in the arc-shaped sieve, enters the second chamber and is discharged from the water outlet; and the chinlon chips pass through the first chamber and are discharged from the discharge port. According to the embodiment of the invention, the dehydration of the chinlon chips can be realized, and electric power resources can be saved.

Description

Technical Field

[0001] This disclosure relates to the field of chemical fiber production equipment technology, and in particular to a dehydration device for nylon chips. Background Technology

[0002] After polymerization in the polymerization tower, the polymer forms a melt. The melt is filtered through a melt filter and then extruded into strips. These strips are then cut into nylon chips by a pelletizer. The resulting nylon chips first enter an extraction tower to extract oligomers and unreacted monomers, and then proceed to the drying process. In related technologies, to reduce the workload in the drying process, most of the moisture in the nylon chips needs to be removed before entering the drying process. During the dehydration stage, a centrifugal dehydrator is typically used to dehydrate the nylon chips, which then enter the drying process for further drying. However, because the nylon chips entering the dehydration stage have a high moisture content, the dehydrator consumes a significant amount of electricity. Utility Model Content

[0003] This disclosure provides a dehydration apparatus for nylon chips to save on power resources.

[0004] This disclosure provides a dewatering device for nylon chips, comprising: a housing having an inlet, an outlet, and a water outlet; a chip redistributor installed in the housing and positioned near the inlet; and an arc-shaped screen installed in the housing. The arc-shaped screen is located between the chip redistributor and the outlet. The arc-shaped screen divides the space within the housing into a first chamber and a second chamber, the first chamber communicating with the outlet and the second chamber communicating with the water outlet. The arc-shaped screen has a plurality of uniformly distributed sieve holes. A mixture of nylon chips and water ejected from the chip redistributor can move to the arc-shaped screen for sieving. Water in the mixture passes through the sieve holes in the arc-shaped screen into the second chamber and is discharged from the water outlet. Nylon chips pass through the first chamber and are discharged from the outlet.

[0005] In one embodiment, the inlet and outlet are respectively located near opposite ends of the housing; the outlet and water outlet are located near the same end of the housing.

[0006] In one embodiment, the slice redistributor includes a plurality of nozzles, wherein at least two nozzles are arranged along the axial direction of the arcuate screen.

[0007] In one embodiment, the axial direction of the nozzle's outlet end is tangent to the arc surface corresponding to the arc-shaped screen.

[0008] In one embodiment, the central angle corresponding to the arc-shaped screen is greater than or equal to 90° and less than 180°.

[0009] In one embodiment, the central angle corresponding to the arc-shaped screen is 120°.

[0010] In one embodiment, the sieve holes are diamond-shaped.

[0011] In one embodiment, the axial direction of the arc-shaped screen is perpendicular to the axial direction of the housing; along the axial direction of the housing, the middle portion of the arc-shaped screen protrudes toward the second chamber.

[0012] In one embodiment, along the axial direction of the arc-shaped screen, the length of the diagonal of the screen opening is greater than or equal to 1.0 mm and less than or equal to 1.5 mm.

[0013] In one embodiment, the minimum distance between two adjacent sieve holes is greater than or equal to 1.0 mm and less than or equal to 1.4 mm.

[0014] In one embodiment, the box body is provided with a slice storage cavity, which is connected between the first chamber and the discharge port.

[0015] In one embodiment, the tank is provided with a water storage chamber, which is connected between the second chamber and the water outlet.

[0016] In one embodiment, the slice storage cavity is cylindrical or conical; the water delivery storage cavity is cylindrical or conical; and the axial direction of the slice storage cavity is parallel to the axial direction of the water delivery storage cavity.

[0017] In one embodiment, the slice storage cavity and the water delivery storage cavity are spaced apart along a direction perpendicular to the axial direction of the slice storage cavity and the axial direction of the arc-shaped screen.

[0018] In one embodiment, the housing includes a first guide plate connected to the bottom end of the arc-shaped screen facing the slice storage cavity, and the first guide plate is also connected to the top end of the slice storage cavity.

[0019] In one embodiment, the housing includes a second guide plate connected to the bottom end of the arc-shaped screen and also connected to the top end of the water storage chamber.

[0020] In one embodiment, at least one of the first guide plate and the second guide plate is tilted.

[0021] In one embodiment, the dehydration device further includes a first valve disposed in a feed pipe connected to the feed inlet.

[0022] In one embodiment, the dehydration device further includes a second valve disposed in a discharge pipeline connected to the discharge port.

[0023] In one embodiment, the dehydration device further includes a third valve disposed in an outlet pipe connected to the outlet.

[0024] In one embodiment, the dehydration device further includes a bag filter connected to one end of the outlet pipe away from the outlet.

[0025] In one embodiment, at least one of the first valve, the second valve, and the third valve includes a pneumatic valve.

[0026] In one embodiment, along the axial direction of the arc-shaped screen, the housing has two first sidewalls spaced apart; a second sidewall is connected between the two first sidewalls, and the second sidewalls are spaced apart; at least one of the second sidewalls is provided with an observation window; the dehydration device further includes: a side viewing mirror and a locking member, the side viewing mirror being movably connected to the second sidewall; the locking member is used to fix the side viewing mirror to the second sidewall when the side viewing mirror is in a closed state that blocks the observation window; when the side viewing mirror is in a closed state, the side viewing mirror and the second sidewall are in a sealed fit.

[0027] In one embodiment, the dewatering device further includes: a plurality of elongated mounting plates, at least a portion of which are located in the second chamber, the mounting plates being connected to the arc-shaped screen and also connected to the housing; wherein at least two of the mounting plates are spaced apart along the axial direction of the arc-shaped screen; or, wherein at least two of the mounting plates are spaced apart along the direction from the feed inlet toward the water outlet.

[0028] The dehydration device provided in this embodiment utilizes a chip redistributor to spray a mixture of nylon chips and water onto an arc-shaped screen for sieving. Water in the mixture, under inertia, passes through the sieve holes in the arc-shaped screen into the second chamber and exits through the outlet. The nylon chips, under centripetal force, move within the first chamber and exit through the discharge port, thus achieving dehydration. Furthermore, this dehydration device consumes relatively little electricity. This dehydration device can remove most of the water from the nylon chips. Therefore, when the nylon chips enter a centrifugal dehydrator for further dehydration, the centrifugal dehydrator's speed can be appropriately reduced, thereby reducing the dehydrator's load, decreasing electricity consumption, extending the centrifugal dehydrator's service life, and lowering maintenance costs. Moreover, due to the lower speed of the centrifugal dehydrator, there is less wear on the nylon chips, resulting in fewer broken chips and less dust, which helps ensure the quality of the nylon chips.

[0029] The above overview is for illustrative purposes only and is not intended to be limiting in any way. Further aspects, embodiments, and features of this disclosure will become readily apparent from the accompanying drawings and the following detailed description, in addition to the illustrative aspects, embodiments, and features described above. Attached Figure Description

[0030] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments according to this disclosure and should not be construed as limiting the scope of this disclosure.

[0031] Figure 1 A schematic diagram of a dehydration apparatus according to an embodiment of the present disclosure is shown. Figure 1 ;

[0032] Figure 2 A schematic diagram of a dehydration apparatus according to an embodiment of the present disclosure is shown. Figure 2 .

[0033] Explanation of reference numerals in the attached drawings: 100-box body; 100a-inlet; 100b-outlet; 100c-water outlet; 110-first side wall; 120-second side wall; 130-first chamber; 140-second chamber; 150-slice storage chamber; 160-water storage chamber; 170-first guide plate; 180-second guide plate; 190-side viewing mirror; 200-slice redistributor; 300-arc screen; 401-first valve; 402-second valve; 403-third valve; 404-bag filter. Detailed Implementation

[0034] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this disclosure. Therefore, the drawings and description are to be considered exemplary in nature and not restrictive.

[0035] Figure 1 A cross-sectional schematic diagram of a dehydration apparatus according to an embodiment of the present disclosure is shown. Figure 2 A side view of a dehydration apparatus according to an embodiment of the present disclosure is shown.

[0036] Please refer to Figure 1 and Figure 2 The dehydration device for nylon chips provided in this embodiment includes: a housing 100 having an inlet 100a, an outlet 100b, and a water outlet 100c; a chip redistributor 200 installed in the housing 100 and positioned near the inlet 100a; and an arc-shaped screen 300 installed in the housing 100. The arc-shaped screen 300 is located between the chip redistributor 200 and the outlet 100b. The arc-shaped screen 300 is used to divide the space within the housing 100 into a first chamber 130 and a second chamber 140. 40. The first chamber 130 is connected to the discharge port 100b, and the second chamber 140 is connected to the water outlet 100c. The arc screen 300 is provided with a plurality of evenly distributed screen holes. The mixture of nylon chips and water sprayed from the chip redistributor 200 can move to the arc screen 300 for screening. The water in the mixture will pass through the screen holes in the arc screen 300 into the second chamber 140 and be discharged from the water outlet 100c. The nylon chips will pass through the first chamber 130 and be discharged from the discharge port 100b.

[0037] For example, at least a portion of the housing 100 is columnar, such as prismatic or cylindrical. For ease of description, the axial direction of the housing 100 is taken as the vertical direction (i.e., up and down), with the inlet 100a located above the outlet 100b; the axial direction of the arc-shaped screen 300 is taken as the longitudinal direction (i.e., up and down). Figure 1 The direction perpendicular to the paper (in the middle); the direction perpendicular to both the vertical and longitudinal directions is the transverse direction (that is... Figure 2 (The direction perpendicular to the paper).

[0038] In some examples, the housing 100 has opposing upper and lower ends along its axial direction, and the housing 100 also has an intermediate portion connecting the upper and lower ends. The upper end can be columnar or conical; when the upper end is conical, its cross-sectional area gradually increases from top to bottom; when the upper end is columnar, its specific shape can be the same as or different from the shape of the intermediate portion. The intermediate portion can be columnar, such as prism or cylinder. The lower end can be columnar or conical; when the lower end is conical, its cross-sectional area gradually decreases from top to bottom; when the lower end is columnar, its specific shape can be the same as or different from the shape of the intermediate portion.

[0039] The upper end of the housing 100 may be provided with a feed inlet 100a, which is used to allow the mixture of nylon chips and water to enter the housing 100. The feed inlet 100a may be located on the upper surface of the housing 100, or on a side wall of the housing 100 near the upper surface. The feed inlet 100a can be a circular or polygonal hole. The specific location and shape of the feed inlet 100a can be set according to actual needs.

[0040] The feed inlet 100a can be connected to a feed pipeline, which is equipped with a first valve 401. The first valve 401 is used to control the connection or disconnection between the feed inlet 100a and an external device. The first valve 401 can be connected between the feed inlet 100a and the feed pipeline, or between two adjacent sections of the feed pipeline. The first valve 401 can be a pneumatic valve or an electric valve.

[0041] The discharge port 100b and the water outlet 100c can be located at the lower end of the housing 100. For example, the discharge port 100b can be located on the lower end face of the housing 100, or on a side wall of the housing 100 near the lower end face. The water outlet 100c can be located on the lower end face of the housing 100, or on a side wall of the housing 100 near the lower end face. The discharge port 100b and the water outlet 100c can be spaced apart, for example, they can be spaced apart along the transverse direction of the housing 100.

[0042] The discharge port 100b can be connected to a discharge pipeline, which is equipped with a second valve 402. The second valve 402 is used to control the connection or disconnection between the discharge port 100b and an external device. The second valve 402 can be connected between the discharge port 100b and the discharge pipeline, or between two adjacent sections of the discharge pipeline. The second valve 402 can be a pneumatic valve or an electric valve. The second valve 402 can be in a normally open state.

[0043] The outlet 100c can be connected to an outlet pipeline, which is equipped with a third valve 403. The third valve 403 controls the connection or disconnection between the outlet 100c and external devices. The third valve 403 can be connected between the outlet 100c and the outlet pipeline, or between two adjacent sections of the outlet pipeline. The third valve 403 can be a pneumatic valve or an electric valve. The third valve 403 can be in a normally open state.

[0044] Optionally, the dewatering device also includes a bag filter 404, which is connected to the end of the outlet pipe away from the outlet 100c. The bag filter 404 can be used to collect water, shredded chips, and dust discharged from the outlet 100c of the housing 100. The bag filter 404 can filter out shredded chips and dust from its contents, and deliver the filtered water to the extraction system for conveying nylon chips, thereby enabling water recycling.

[0045] In practice, when the bag filter 404 in the dewatering device has been used for a preset time, or when the amount of water entering the bag filter 404 has reached a preset amount, the third valve 403 can be closed to clean or replace the bag filter 404.

[0046] The chip redistributor 200 is used to redistribute the mixture of nylon chips and water entering from the feed inlet 100a, ensuring that the mixture of nylon chips and water ejected from the chip redistributor 200 reaches the arc-shaped screen 300 for sieving. The chip redistributor 200 can be located in the housing 100 and positioned close to the feed inlet 100a to ensure that all the nylon chips and water mixture entering from the feed inlet 100a enters the chip redistributor 200. The parts of the chip redistributor 200 not described in this embodiment can be configured according to actual needs or a conventional configuration can be used.

[0047] An arc-shaped screen 300 is installed in the housing 100. The arc-shaped screen 300 can be part of a hollow cylindrical structure, such as a ring structure, and the axial direction of the arc-shaped screen 300 is perpendicular to the axial direction of the housing 100. The cross-section of the arc-shaped screen 300 at a predetermined cutting plane can be arc-shaped, which is perpendicular to the horizontal direction and parallel to the transverse direction of the housing 100; or, the housing 100 has two first side walls 110 distributed longitudinally at intervals, and the orthographic projection of the arc-shaped screen 300 on the first side wall 110 of the housing 100 is arc-shaped.

[0048] The housing 100 also includes two second sidewalls 120 spaced laterally along the housing 100, with the two second sidewalls 120 respectively connected between the two first sidewalls 110. The feed inlet 100a may be located in the portion of the second sidewall 120 near the upper end face.

[0049] The arc-shaped screen 300 extends longitudinally along the housing 100, and the longitudinal extension distance of the arc-shaped screen 300 can be set according to the longitudinal dimension of the housing 100. For example, the arc-shaped screen 300 has two first edges spaced apart along the longitudinal direction of the housing 100, and the portion of the arc-shaped screen 300 near the first edge is fixedly connected to the first sidewall 110 of the housing 100. Optionally, the portion of the arc-shaped screen 300 near the first edge can be fixedly connected to the first sidewall 110 by means of snap-fit, welding, or fastening. The vertical dimension of the arc-shaped screen 300 can be set according to actual needs; optionally, the vertical dimension of the arc-shaped screen 300 can be smaller than the maximum vertical dimension of the housing 100. In addition, to improve the installation reliability of the arc-shaped screen 300, the upper end of the arc-shaped screen 300 can also be fixedly connected to the upper end of the housing 100.

[0050] The arc-shaped screen 300 can divide at least a portion of the space within the housing 100 into a first chamber 130 and a second chamber 140. The first chamber 130 is connected to the discharge port 100b, and the second chamber 140 is connected to the water outlet 100c. The arc-shaped screen 300 has a vertically oriented midpoint protruding towards the second chamber 140 to facilitate the smooth movement of the nylon chips towards the discharge port 100b after impact with the arc-shaped screen 300.

[0051] The arc-shaped screen 300 has multiple evenly distributed screen holes. These screen holes are through-holes that penetrate the arc-shaped screen 300. The screen holes can be circular or polygonal. The screen holes can be arranged in a dot matrix pattern. The screen holes are used to allow water that has separated from the nylon chips to pass through.

[0052] When dehydration and drying are required, the mixture of nylon chips and water enters the chamber 100 through the feed inlet 100a and then enters the chip redistributor 200. The chip redistributor 200 sprays the mixture of nylon chips and water onto the arc-shaped screen 300, causing the mixture to collide with the screen. Water in the mixture, under inertia, passes through the sieve holes of the arc-shaped screen 300 into the second chamber 140 and is discharged from the outlet 100c. The nylon chips, under centripetal force, move in the first chamber 130 and are discharged from the outlet 100b, thus achieving dehydration of the nylon chips. Additionally, broken chips and dust generated during the screening process can also pass through the sieve holes of the arc-shaped screen 300 into the second chamber 140 and be discharged from the outlet 100c.

[0053] In some scenarios, nylon chips contain a large amount of moisture after passing through the extraction tower, and water is needed as a carrier during the transportation of the nylon chips using a mud pump. To ensure the drying effect of the nylon chips, the mixture of nylon chips and water can be first transported to the dehydration device of this embodiment for dehydration. The nylon chips discharged from the dehydration device are then sent to a centrifugal dehydrator for further dehydration, and then sent to a drying tower for drying. In this scenario, the surface water content of the nylon chips is lower than that obtained by simply using a centrifugal dehydrator, resulting in drier nylon chips. This reduces the steam consumption of the drying tower and shortens the drying time.

[0054] In other scenarios, nylon chips discharged from the dehydration unit can also be sent to a drying tower for drying.

[0055] Using the dehydration device provided in this embodiment, the nylon chips and water mixture is sprayed onto the arc-shaped screen 300 by the chip redistributor 200, so that the nylon chips and water mixture can collide with the arc-shaped screen. Under the action of inertia, the water in the mixture can pass through the screen holes in the arc-shaped screen 300 and enter the second chamber 140 and be discharged from the outlet 100c. The nylon chips can move through the first chamber 130 under the action of centripetal force and be discharged from the outlet 100b, thereby achieving dehydration. Moreover, the dehydration device of this embodiment consumes less electricity. The dehydration device of this embodiment can remove most of the water from the mixture of nylon chips and water. Thus, when the nylon chips enter the centrifugal dehydrator for further dehydration, the speed of the centrifugal dehydrator can be appropriately reduced, thereby reducing the load on the dehydrator, reducing power consumption, extending the service life of the centrifugal dehydrator, and reducing the maintenance cost of the centrifugal dehydrator. Moreover, because the centrifugal dehydrator has a low speed, it causes less wear on the nylon chips and produces less broken chips and dust, which helps to ensure the quality of the nylon chips.

[0056] In some embodiments, the inlet 100a and outlet 100b are respectively located near opposite ends of the housing 100; the outlet 100b and water outlet 100c are located near the same end of the housing 100. Exemplarily, the upper end of the housing 100 is tapered; the cross-sectional area of ​​the upper end of the housing 100 gradually increases from top to bottom; the portion of the second sidewall 120 located at the upper end is inclined, and the inlet 100a is located in the upper portion of the second sidewall 120. The outlet 100b and water outlet 100c are respectively located on the lower end face of the housing 100 to facilitate the discharge of nylon chips and water outside the housing 100. The outlet 100b and water outlet 100c are spaced apart along the transverse direction of the housing 100.

[0057] In some embodiments, the chip redistributor 200 includes a plurality of nozzles, wherein at least two nozzles are arranged along the axial direction of the arcuate screen 300 (i.e., the longitudinal direction of the housing 100). Exemplarily, the chip redistributor 200 may include three, four, or five nozzles, with the multiple nozzles evenly distributed along the longitudinal direction of the housing 100. This facilitates a more uniform distribution of the nylon chip-water mixture to the surface of the arcuate screen 300, reduces the need for an overly large dewatering device, and prevents clogging due to excessively dense nozzle arrangement. It is understood that when the longitudinal dimension of the dewatering device is large, the chip redistributor 200 can include a greater number of nozzles.

[0058] In other embodiments, due to the size limitation of the housing 100, when a larger number of nozzles are required, multiple rows of nozzles can be arranged, with each row including multiple nozzles evenly distributed along the longitudinal direction.

[0059] In some embodiments, the axial direction of the nozzle outlet is tangent to the arc surface corresponding to the arc screen 300, so that the movement direction of the nylon chip and water mixture leaving the nozzle is tangent to the arc surface corresponding to the arc screen 300. This facilitates the removal of water from the mixture and reduces the impact force of the nylon chips on the arc screen 300, reducing the friction between the nylon chips and the arc screen 300, and reducing the fragments and dust generated by the impact of the nylon chips. The arc surface refers to the surface of the arc screen 300 that contacts the nylon chips, i.e., the surface of the arc screen 300 facing the first chamber 130. Multiple nozzles are evenly distributed along the longitudinal direction of the housing 100. When the nylon chips ejected from the multiple nozzles impact the arc screen 300, the nylon chips and water can impact the arc screen 300 along the tangential direction and be evenly dispersed on the arc surface.

[0060] Optionally, to balance providing a larger collision area (i.e., filtration area) with reducing friction between the nylon chips and the curved screen 300, the central angle of the curved screen 300 is greater than or equal to 90° and less than 180°. For example, the central angle of the curved screen 300 can be 90°, 100°, 110°, 120°, 130°, 140°, 150°, 160°, 170°, or 175°, or any angle between two of these.

[0061] For example, the central angle corresponding to the arc-shaped screen 300 is 120°. The first side where the discharge port 100b is located gradually slopes away from the other first side in a downward direction; the angle between the axial direction of the nozzle and the first side where the discharge port 100b is located is approximately 90°, and the specific angle between the axial direction of the nozzle and the first side where the discharge port 100b is located can be set according to actual needs. The angle between the axial direction of the nozzle outlet end and the horizontal plane can be 60°, that is, the angle between the direction of movement of the nylon chip and water mixture leaving the nozzle and the horizontal plane can be 60°. It is understood that the angle in the above example is not limited to this, and can be set according to actual needs.

[0062] In some embodiments, the sieve holes are rhomboid in shape. The orthographic projection of one diagonal of the rhomboid sieve hole onto the first projection plane is parallel to the vertical direction of the housing 100, and the first projection plane is perpendicular to the horizontal plane. The orthographic projection of the other diagonal of the rhomboid sieve hole onto the second projection plane is parallel to the longitudinal direction of the housing 100, and the second projection plane is perpendicular to the vertical direction of the housing 100.

[0063] For two adjacent rows of screen holes, each row includes multiple screen holes spaced apart along the longitudinal direction of the box body 100. The upper and lower rows of screen holes are staggered, that is, the upper and lower rows of screen holes are staggered along the vertical diagonal. Through the above arrangement, a larger number of screen holes can be arranged in the arc-shaped screen 300, thereby improving the dewatering effect.

[0064] Along the axial direction of the arc-shaped screen 300 (i.e., the longitudinal direction of the housing 100), the length of the diagonal of the screen opening is greater than or equal to 1.0 mm and less than or equal to 1.5 mm. For example, along the axial direction of the arc-shaped screen 300, the length of the diagonal of the screen opening can be 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, or 1.5 mm, or any two of these lengths. The length of the other diagonal of the screen opening can also be greater than or equal to 1.0 mm and less than or equal to 1.5 mm.

[0065] Along the axial direction of the arc-shaped screen 300 (i.e., the longitudinal direction of the housing 100), the minimum distance between two adjacent screen holes is greater than or equal to 1.0 mm and less than or equal to 1.4 mm. For example, the distance between two screen holes can be 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, or 1.4 mm, or any two of the above. Along the vertical direction of the housing 100, the minimum distance between two adjacent screen holes can also be greater than or equal to 1.0 mm and less than or equal to 1.4 mm.

[0066] In some embodiments, a chip storage cavity 150 is provided within the housing 100, the chip storage cavity 150 being connected between the first chamber 130 and the discharge port 100b. The chip storage cavity 150 can be used to store nylon chips. The chip storage cavity 150 can be cylindrical or conical; wherein, when at least a portion of the chip storage cavity 150 is conical, the cross-sectional area of ​​the conical portion of the chip storage cavity 150 can gradually decrease from top to bottom.

[0067] Optionally, the axial direction of the slice storage cavity 150 is parallel to the vertical direction; the slice storage cavity 150 is also provided to extend longitudinally along the housing 100 so that the nylon slices ejected from each nozzle can enter the slice storage cavity 150.

[0068] For example, the portion of the slice storage cavity 150 near the upper end may be conical; the portion of the slice storage cavity 150 near the lower end may be cylindrical. For the conical portion of the slice storage cavity 150, the slice storage cavity 150 has a third sidewall opposite to the second sidewall 120; along the top-down direction, the distance between the portions of the third sidewall and the second sidewall 120 located in the slice storage cavity 150 gradually decreases; along the top-down direction, the distance between the portions of the two first sidewalls 110 located in the slice storage cavity 150 gradually decreases.

[0069] The housing 100 includes a water storage chamber 160, which connects the second chamber 140 and the outlet 100c. The water storage chamber 160 can be used to store water separated from the nylon chips. The water storage chamber 160 can be cylindrical or conical; wherein, when at least a portion of the water storage chamber 160 is conical, the cross-sectional area of ​​the conical portion of the water storage chamber 160 can gradually decrease from top to bottom.

[0070] Optionally, the axial direction of the water storage chamber 160 is parallel to the vertical direction; the water storage chamber 160 is also provided to extend longitudinally along the housing 100 so that water separated from the nylon chips ejected from each nozzle can enter the water storage chamber 160.

[0071] For example, the portion of the water storage cavity 160 near the upper end may be conical; the portion of the water storage cavity 160 near the lower end may be cylindrical. For the conical portion of the water storage cavity 160, the water storage cavity 160 has a third sidewall opposite to the second sidewall 120; the distance between the portions of the third sidewall and the second sidewall 120 located in the water storage cavity 160 gradually decreases along the top-to-bottom direction; the distance between the portions of the two first sidewalls 110 located in the water storage cavity 160 gradually decreases along the top-to-bottom direction.

[0072] Along the axial direction perpendicular to the slice storage chamber 150 and the axial direction perpendicular to the arc screen 300, that is, along the transverse direction of the box body 100, the slice storage chamber 150 and the water conveying storage chamber 160 are distributed alternately.

[0073] The nylon chips, dust, and conveying water in the water storage chamber 160 are fed into the bag filter 404 to filter out the dust and nylon chips. The conveying water is then returned to the bottom of the extraction system for conveying nylon chips.

[0074] In some embodiments, the housing 100 includes a first guide plate 170, which is connected to the lower end of the arc-shaped screen 300 toward the slice storage cavity 150, and is also connected to the upper end of the slice storage cavity 150. The first guide plate 170 extends longitudinally along the housing 100 and has two second edges spaced longitudinally along the housing 100. The portion of the first guide plate 170 near the second edges can be fixedly connected to the first sidewall 110 of the housing 100.

[0075] The housing 100 includes a second guide plate 180, which is connected to the lower end of the arc-shaped screen 300 and also to the upper end of the water storage chamber 160. The second guide plate 180 extends longitudinally along the housing 100 and has two third edges spaced apart longitudinally along the housing 100. The portion of the second guide plate 180 near the third edges can be fixedly connected to the first side wall 110 of the housing 100.

[0076] At least one of the first guide plate 170 and the second guide plate 180 is inclined. Optionally, in a top-down direction, the first guide plate 170 is gradually inclined toward the first chamber 130 to facilitate guiding nylon chips falling onto the first guide plate 170 into the chip storage chamber 150. In a top-down direction, the second guide plate 180 is gradually inclined toward the second chamber 140 to facilitate guiding water falling onto the second guide plate 180 into the chip storage chamber 150. For example, in a top-down direction, the first guide plate 170 and the second guide plate 180 are inclined in opposite directions.

[0077] In some examples, at least one of the second sidewalls 120 is provided with an observation window. The dehydration device also includes a side viewing mirror 190 and a locking member, the side viewing mirror 190 being movably connected to the second sidewall 120; the locking member is used to secure the side viewing mirror 190 to the second sidewall 120 when the side viewing mirror 190 is in the closed state, obscuring the observation window. When the side viewing mirror 190 is in the closed state, the side viewing mirror 190 and the second sidewall 120 are in a sealed fit. At least a portion of the side viewing mirror 190 is made of a transparent material, so that the side viewing mirror 190 has a transparent area corresponding to at least a portion of the observation window, allowing on-site personnel to observe the situation inside the enclosure 100 through the transparent area.

[0078] For example, one side of the side mirror 190 is hinged to the second sidewall 120 via a hinge axis. The locking element includes a pin. A pin fixing seat is mounted on the side of the side mirror 190 opposite to the hinge axis. The pin fixing seat has a first positioning groove, a guide groove, a second positioning groove, and a first mounting hole. The first positioning groove, guide groove, second positioning groove, and first mounting hole are connected. The first positioning groove and the second positioning groove are axially spaced along the first mounting hole. The guide groove connects the first positioning groove and the second positioning groove. The first mounting hole is located on the side of the second positioning groove opposite to the guide groove. The second sidewall 120 is provided with a locking seat, which has a second positioning hole coaxially arranged with the first positioning hole. The first positioning groove is located on the side of the second positioning groove opposite to the locking seat.

[0079] The pin has a plug and an operating handle, which are vertically arranged. The plug is located in the first mounting hole. When the operating handle is engaged in the first positioning groove, the plug is located in the first mounting hole and not inserted into the second mounting hole, allowing the side mirror 190 to rotate relative to the second side wall 120; at this time, the side mirror 190 is in an openable state. When the pin moves along the guide groove under external force until the operating handle aligns with the second positioning groove, the operating handle is engaged in the second positioning groove, the plug passes through the first mounting hole and engages with the second mounting hole, thereby fixing the side mirror 190 to the second side wall 120; at this time, the side mirror 190 is in a closed state.

[0080] Alternatively, the side mirror 190 may be provided with a handle mounting base. The locking element includes a rotary handle, which is movably mounted in the handle mounting base. The rotary handle has a handle, a handle mounting post, and a locking block. The mounting post engages with the handle mounting base. The axis of the mounting post is perpendicular to the thickness direction of the side mirror 190, and the rotary handle is perpendicular to the axis of the mounting post. The locking block is slidably disposed in the handle mounting base. A spring is provided between the locking block and the handle mounting base. Under the action of the spring, the locking block can extend out of the handle mounting base and engage with a lock hole on the second side wall 120, thereby locking the side mirror 190 to the second side wall 120, placing the side mirror 190 in the closed state. When an external force is applied to the handle, the handle can rotate the handle mounting post, which in turn causes the locking block to overcome the elastic element and move in a direction away from the locking block, releasing the lock on the side mirror 190 and placing the side mirror 190 in the open state.

[0081] Alternatively, the side mirror 190 and the second side wall 120 are respectively equipped with locking seats, and the two locking seats are respectively provided with lock holes; the locking member includes a padlock with a U-shaped locking beam, or the locking member includes a U-shaped lock; the U-shaped part of the locking member can pass through the lock holes of the two locking seats.

[0082] Alternatively, the side mirror 190 may be equipped with one of a magnet and a metal plate; the second sidewall 120 may be equipped with the other of a magnet and a metal plate, so that the side mirror 190 and the second sidewall 120 are locked together by the magnetic attraction between the magnet and the metal plate. To improve locking reliability, both the magnet and the metal plate may extend longitudinally along the housing 100, so that there is a relatively large working surface between the magnet and the metal plate, thereby increasing the magnetic attraction between them.

[0083] It is understandable that the specific structure of the locking component can be set according to actual needs, as long as it can achieve its locking function.

[0084] Optionally, a seal may be provided near the edge of the side viewing mirror 190; when the side viewing mirror 190 is in the closed state, the seal abuts against the side viewing mirror 190 and the second side wall 120, thereby sealing the side viewing mirror 190 and the second side wall 120. Alternatively, the seal may be provided on the wall surrounding the observation window.

[0085] In this embodiment, by opening the side viewing mirror 190, it is convenient to inspect and process the unblocking of the sieve holes of the arc-shaped screen 300.

[0086] In some embodiments, the dewatering device further includes: a plurality of elongated mounting plates, at least a portion of which are located in the second chamber 140, the mounting plates being fixedly connected to the arc-shaped screen 300, and the mounting plates also being fixedly connected to the housing 100, so as to improve the installation reliability of the arc-shaped screen 300.

[0087] To prevent the mounting plates from interfering with the flow of water detached from the nylon chips toward the outlet 100c, the mounting plates may be elongated. At least two mounting plates may be spaced apart along the axial direction of the arc-shaped screen 300; or, at least two mounting plates may be spaced apart along the vertical direction of the housing 100.

[0088] For example, the mounting plates extend vertically along the housing 100, and can be spaced apart along the axial direction of the arc-shaped screen 300. There can be two mounting plates, with a preset distance between the two mounting plates and the two edges of the arc-shaped screen 300 that are spaced apart along the axial direction; alternatively, there can be three mounting plates, evenly distributed along the axial direction of the arc-shaped screen 300, with a preset distance between the two mounting plates closest to the edges of the arc-shaped screen 300 and their respective edges. The number of mounting plates can be set according to actual needs; for example, the number of mounting plates can include more than three.

[0089] For example, the mounting plates extend radially along the arc-shaped screen 300, and can be distributed at vertical intervals along the housing 100. There can be two mounting plates, with a preset distance between the two edges of the vertically spaced mounting plates on the housing 100; alternatively, there can be three mounting plates, evenly distributed vertically along the housing 100, with a preset distance between the two mounting plates closest to the upper and lower ends of the arc-shaped screen 300 and their respective end faces. The number of mounting plates can be set according to actual needs; for example, the number of mounting plates can include more than three.

[0090] Other components of the dehydration apparatus in the above embodiments can be derived from various technical solutions now and in the future known to those skilled in the art, and will not be described in detail here.

[0091] In the description of this specification, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0092] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, "multiple" means two or more, unless otherwise explicitly specified.

[0093] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0094] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0095] The foregoing disclosure provides many different implementations or examples for carrying out different structures of this disclosure. To simplify the disclosure, specific examples of components and arrangements have been described above. Of course, these are merely examples and are not intended to limit the scope of this disclosure. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0096] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this disclosure, and these should all be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A dehydration device for nylon chips, characterized in that, include: The housing has a feed inlet, a discharge outlet, and a water outlet; A slice redistributor is installed in the housing and positioned near the feed inlet; An arc-shaped screen is installed in the housing; the arc-shaped screen is located between the slice redistributor and the discharge port; the arc-shaped screen is used to divide the space inside the housing into a first chamber and a second chamber, the first chamber is connected to the discharge port, and the second chamber is connected to the water outlet; the arc-shaped screen is provided with a plurality of evenly distributed screen holes; The mixture of nylon chips and water ejected from the chip redistributor can move to the arc-shaped screen for sieving; the water in the mixture will pass through the sieve holes in the arc-shaped screen into the second chamber and be discharged from the water outlet; the nylon chips will pass through the first chamber and be discharged from the discharge outlet.

2. The dehydration device according to claim 1, characterized in that, The inlet and outlet are respectively located near opposite ends of the box; the outlet and water outlet are located near the same end of the box.

3. The dehydration device according to claim 1, characterized in that, The slice redistributor includes a plurality of nozzles, wherein at least two nozzles are arranged along the axial direction of the arc-shaped screen.

4. The dehydration device according to claim 3, characterized in that, The axial direction of the nozzle's outlet end is tangent to the arc surface corresponding to the arc-shaped screen.

5. The dehydration device according to claim 1, characterized in that, The central angle corresponding to the arc-shaped screen is greater than or equal to 90° and less than 180°.

6. The dehydration apparatus according to claim 5, characterized in that, The central angle corresponding to the arc-shaped screen is 120°.

7. The dehydration device according to claim 1, characterized in that, The sieve holes are rhomboid in shape; The axial direction of the arc-shaped screen is perpendicular to the axial direction of the box body; along the axial direction of the box body, the middle part of the arc-shaped screen protrudes towards the second chamber; Along the axial direction of the arc-shaped screen, the length of the diagonal of the screen holes is greater than or equal to 1.0 mm and less than or equal to 1.5 mm. The minimum distance between two adjacent sieve holes is greater than or equal to 1.0 mm and less than or equal to 1.4 mm.

8. The dehydration device according to claim 1, characterized in that, The box is provided with a slice storage cavity, which is connected between the first chamber and the discharge port; The tank is equipped with a water storage chamber, which is connected between the second chamber and the water outlet.

9. The dehydration apparatus according to claim 8, characterized in that, The slice storage cavity is cylindrical or conical; the water delivery storage cavity is cylindrical or conical; the axial direction of the slice storage cavity is parallel to the axial direction of the water delivery storage cavity; Along the axial direction perpendicular to the slice storage cavity and the axial direction perpendicular to the arc-shaped screen, the slice storage cavity and the water delivery storage cavity are distributed alternately. The housing includes: a first guide plate, which is connected to the bottom end of the arc-shaped screen facing the slice storage cavity, and the first guide plate is also connected to the top end of the slice storage cavity; The housing includes: a second guide plate, which is connected to the bottom end of the arc-shaped screen and also connected to the top end of the water storage chamber; At least one of the first guide plate and the second guide plate is tilted.

10. The dehydration apparatus according to claim 1, characterized in that, Also includes: The first valve is installed in the feed pipe connected to the feed inlet; The second valve is installed in the discharge pipeline connected to the discharge port; The third valve is installed in the water outlet pipe connected to the water outlet. A bag filter, wherein the bag filter is connected to one end of the outlet pipe away from the outlet; At least one of the first valve, the second valve, and the third valve includes a pneumatic valve.

11. The dehydration apparatus according to claim 1, characterized in that, Along the axial direction of the arc-shaped screen, the box has two first sidewalls spaced apart; a second sidewall is connected between the two first sidewalls, and the second sidewalls are spaced apart. At least one of the second sidewalls is provided with an observation window; The dehydration device further includes: a side viewing mirror and a locking component, wherein the side viewing mirror is movably connected to the second side wall; the locking component is used to fix the side viewing mirror to the second side wall when the side viewing mirror is in the closed state that blocks the observation window; When the side view mirror is in the closed state, the side view mirror is sealed to the second side wall.

12. The dehydration apparatus according to claim 1, characterized in that, Also includes: Multiple elongated mounting plates, at least a portion of which are located in the second chamber, are connected to the arc-shaped screen and the housing. At least two of the mounting plates are spaced apart along the axial direction of the arc-shaped screen; or, at least two of the mounting plates are spaced apart along the direction from the feed inlet toward the outlet.

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