A refined cotton homogenizing device

Abstract

The present invention discloses a refined cotton homogenizing device, belonging to the technical field of refined cotton production, comprising: a transverse cavity and a longitudinal cavity are arranged inside the tank body, one end of the transverse cavity is communicated with one end of the longitudinal cavity, a feed inlet is arranged at the other end of the transverse cavity, and a discharge outlet is arranged at the middle of the other end of the longitudinal cavity. The first homogenizing device is horizontally rotatably installed in the transverse cavity, the first homogenizing device is communicated with the feed inlet and is connected with the transverse cavity with a gap. The second homogenizing device is longitudinally rotatably installed in the longitudinal cavity and is in sliding contact with the inner wall of the longitudinal cavity, and the discharge outlet is distributed at intervals from the second homogenizing device; the slurry first enters from the feed inlet, is stirred by the first homogenizing device and flows into the transverse cavity, then passes through the longitudinal cavity and reaches the second homogenizing device. After the slurry flow passes through the slowly rotating first homogenizing device and the second homogenizing device, a gentle and stable flow is formed, and the air and foam in the slurry flow disappear, which is beneficial to the full dispersion of fibers and improves the product quality of refined cotton.

Description

Technical Field

[0001] The invention relates to the technical field of refined cotton production, in particular to a refined cotton homogenizing device. Background Art

[0002] Refined cotton is a white cotton fiber made from cotton linters through a process of steaming, rinsing, drying, etc. The cellulose content of cotton linters themselves exceeds 90%, and there are not many non-cellulose impurities. However, many foreign impurities are mixed in during the production, processing, and transportation, which brings great difficulties to pulping. Therefore, it is necessary to purify the cellulose of cotton linters, that is, the pulping process to remove non-cellulose components. On the one hand, cotton linters pulping removes foreign mechanical impurities such as cottonseed shells, cotton leaves, cotton stalk fragments, dust, etc. mixed in the cotton linters, as well as impurities such as pectin, wax, lipids, lignin, ash, etc. contained in the cotton linters themselves, to obtain purer cellulose; on the other hand, pulping destroys the primary wall of cellulose cells, improves chemical reaction performance, and reduces the degree of polymerization to the required range.

[0003] Currently, most equalizing rollers use a single equalizing roller structure. During the rotation of the equalizing roller, the cotton pulp in contact with the equalizing roller is continuously moved from one side to the other. However, in different time periods, the cotton pulp flow passing through the equalizing roller will produce foam due to air, which will be manifested in the product as corrugation on the surface of the cotton pulp, resulting in poor surface quality of the product.

[0004] In response to the drawbacks of the above-mentioned traditional slurry rollers, the present invention proposes a refined cotton slurrying device, which reduces the flow pressure of the pulp flow after passing through two rotating slurry rollers, forming a gentle and stable flow, which will cause the air and foam in the pulp flow to disappear, and at the same time is conducive to the full dispersion of fibers and improve the quality of refined cotton. Summary of the Invention

[0005] To achieve the above-mentioned purpose, the present invention aims to provide a new technical solution with simple structure, ingenious design, good homogenization effect, and is conducive to improving the quality of refined cotton.

[0006] The technical solution of the present invention to solve the above technical problems is as follows:

[0007] A refined cotton homogenizing device, comprising:

[0008] tank body, first homogenizing device, second homogenizing device;

[0009] A transverse cavity and a longitudinal cavity are provided inside the tank body, one end of the transverse cavity is connected to one end of the longitudinal cavity, and a feed port is provided at the other end of the transverse cavity, and a discharge port is provided in the middle of the other end of the longitudinal cavity. The first homogenization device is installed in the transverse cavity for transverse rotation, the first homogenization device is connected to the feed port and is connected to the transverse cavity gap, the second homogenization device is installed in the longitudinal cavity for longitudinal rotation, and is in sliding contact with the inner wall of the longitudinal cavity, and the discharge port and the second homogenization device are spaced apart.

[0010] The beneficial effects of the present invention are as follows: the slurry first enters from the feed port, and flows into the transverse cavity through the transverse rotation and stirring of the first homogenization device, so that the slurry flow is in a micro-turbulent state, thereby ensuring the dispersion of the fibers in the slurry flow and avoiding the flocculation of the fibers. After the slurry passes through the first homogenization device, it passes through the longitudinal cavity and enters the second homogenization device. Under the transverse rotation and stirring of the second homogenization device, the slurry flow state appears uniform and stable, and the uniformity of the longitudinal and transverse arrangement of the slurry flow is improved. After the slurry flow passes through the slowly rotating first homogenization device and the second homogenization device, the flow pressure of the slurry is reduced, forming a gentle and steady flow, which will cause the air and foam in the slurry flow to disappear. At the same time, it is beneficial to the full dispersion of the fibers and improves the product quality of the refined cotton.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows:

[0012] Furthermore, the first homogenizing device includes a first connecting shaft, a first centrifugal disk, a first material distribution roller and a spiral flow channel; the first connecting shaft is rotatably installed in the transverse cavity and is perpendicular to the feed port, the first material distribution roller is sleeved on the first connecting shaft, the first centrifugal disk has two respectively installed at both ends of the first connecting shaft, and the first centrifugal disk connects the first connecting shaft and the first material distribution roller, the spiral flow channel is spirally installed on the outside of the first material distribution roller, and the spiral flow channel covers and connects the entire feed port; a plurality of first through holes are evenly distributed on the outer wall of the spiral flow channel, and the plurality of first through holes connect the interior of the spiral flow channel and the transverse cavity.

[0013] The beneficial effect of adopting the above-mentioned further scheme is: the first connecting shaft drives the first centrifugal disk, the first material distribution roller and the spiral flow channel to rotate, and the slurry enters the spiral flow channel from the feed port. The spiral flow channel can effectively prolong the flow time of the slurry in the flow channel. After rotation, the slurry flows in the spiral flow channel and flows out from multiple first through holes to the lower second homogenization device. In this process, relatively strong small vortices are formed, which puts the slurry flow in a micro-turbulent state, thereby dispersing the fibers in the slurry flow and avoiding fiber flocculation. It can effectively promote the full dispersion of the fibers and improve the quality of refined cotton.

[0014] Furthermore, the inner side wall of the first material distributing roller is provided with a heating layer close to the spiral flow channel and an ultrasonic generator installed inside the heating layer.

[0015] The beneficial effect of adopting the above-mentioned further scheme is as follows: the first material leveling roller is equipped with a heating layer and an ultrasonic generator, and the slurry is heated under the action of the heating layer outside the spiral flow channel, thereby accelerating the reaction of the treatment liquid with the hemicellulose, lignin and other components in the fiber. At the same time, the treatment liquid quickly flows into the interior of the fiber under the action of the ultrasonic generator, deeply dissolving the hemicellulose, lignin and other components, promoting the treatment liquid to quickly flow into the interior of the fiber to further deeply dissolve the hemicellulose, lignin and other components, thereby further improving the quality of refined cotton.

[0016] Furthermore, an access port is provided at the connection between the front end of the spiral flow channel and the feed port.

[0017] The beneficial effect of adopting the above further solution is that the access port facilitates the slurry to enter the spiral flow channel from the feed port, thereby improving the entry efficiency of the slurry.

[0018] Furthermore, the first homogenizing device further includes a first driving device, which is installed on the outside of the tank body and is connected to and drives the first connecting shaft to rotate.

[0019] The beneficial effect of adopting the above further solution is that the first driving device is used to provide power for the rotation of the first connecting shaft, ensuring the rotation of the first material distribution roller and the spiral flow channel.

[0020] Furthermore, the second homogenizing device includes a second connecting shaft, a second centrifugal disk, a second material distribution roller and a cylindrical flow channel. The second connecting shaft is rotatably installed in the longitudinal cavity and is parallel to the discharge port. The second material distribution roller is sleeved on the second connecting shaft. The second centrifugal disk has two pieces respectively installed at both ends of the second connecting shaft and respectively connected to the second connecting shaft and the second material distribution roller. The cylindrical flow channel is sleeved on the outside of the second material distribution roller, and the cylindrical flow channel is in sliding contact with the inner walls of the upper and lower ends of the longitudinal cavity. A plurality of second through holes are evenly arranged on the cylindrical flow channel, and the plurality of second through holes connect the interior of the cylindrical flow channel and the longitudinal cavity.

[0021] The beneficial effects of adopting the above further solution are as follows: The second connecting shaft drives the second material leveling roller and the cylindrical flow channel to rotate. The cylindrical flow channel is the clearance space surrounding the outer side of the second material leveling roller. After the slurry flows out of the first homogenizing device and into the longitudinal cavity, since the cylindrical flow channel is in sliding contact with the inner walls of the upper and lower ends of the longitudinal cavity, it can fully intercept the slurry discharged from the first homogenizing device. Under the rotation of the cylindrical flow channel, the slurry enters through a plurality of second through-holes on one side close to the transverse cavity and then discharges from a plurality of second through-holes on the other side, and finally discharges from the discharge port. In this process, the transverse orientation of the fibers is re-oriented longitudinally, making the state of the slurry flow appear uniform and stable, improving the uniformity of the longitudinal and transverse arrangement of the slurry flow, reducing the longitudinal and transverse tensile ratio of the refined cotton limit, and further improving the quality of the slurry.

[0022] Further, the second through-hole is of a horizontally long-shaped hole structure, and the long side of the second through-hole is parallel to the axial direction of the second connecting shaft.

[0023] The beneficial effects of adopting the above further solution are as follows: The horizontally long-shaped hole structure facilitates the entry of the slurry when the cylindrical flow channel rotates along its axial direction. At the same time, it can also increase the arrangement orientation of the transverse fibers during axial rotation, reduce the fiber longitudinal and transverse tensile ratio, and improve the quality of the slurry.

[0024] Further, the second homogenizing device further includes a second driving device, which is installed on the outer side of the tank body and is connected to and drives the second connecting shaft to rotate.

[0025] The beneficial effects of adopting the above further solution are as follows: The second driving device is used to provide power for the rotation of the second connecting shaft to ensure the rotation and operation of the second material leveling roller and the cylindrical flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the present invention;

[0027] Figure 2 is a schematic structural diagram of the first homogenizing device of the present invention;

[0028] Figure 3 is a cross-sectional view of the first material leveling roller of the present invention;

[0029] Figure 4 is a schematic structural diagram of the second homogenizing device of the present invention.

[0030] In the drawings, the list of components represented by each reference numeral is as follows:

[0031] 1. Tank body; 11. Feed inlet; 12. Discharge outlet; 13. Transverse cavity; 14. Longitudinal cavity; 2. First homogenizing device; 21. First connecting shaft; 22. First centrifugal disc; 23. First material leveling roller; 231. Heating layer; 232. Ultrasonic generator; 24. Spiral flow channel; 241. First through hole; 242. Inlet; 3. Second homogenizing device; 31. Second connecting shaft; 32. Second centrifugal disc; 33. Second material leveling roller; 34. Cylindrical flow channel; 341. Second through hole. Detailed implementation mode

[0032] In order to make the purpose, technical solution and advantages of the invention more clear and understandable, the following further details the present invention in conjunction with the attached drawings, and is not used to limit the scope of the present invention.

[0033] Example 1: As Figure 1 shown, an embodiment of a refined cotton homogenizing device disclosed by the present invention includes:

[0034] Tank body 1, first homogenizing device 2, and second homogenizing device 3;

[0035] A transverse cavity 13 and a longitudinal cavity 14 are provided inside the tank body 1. One end of the transverse cavity 13 is communicated with one end of the longitudinal cavity 14. The other end of the transverse cavity 13 is provided with a feed inlet 11, and the middle of the other end of the longitudinal cavity 14 is provided with a discharge outlet 12. The first homogenizing device 2 is horizontally rotatably installed in the transverse cavity 13. The first homogenizing device 2 is communicated with the feed inlet 11 and is connected to the transverse cavity 13 with a gap. The second homogenizing device 3 is longitudinally rotatably installed in the longitudinal cavity 14 and is slidably abutted against the inner wall of the longitudinal cavity 14. The discharge outlet 12 and the second homogenizing device 3 are spaced apart.

[0036] Specifically, the slurry first enters the first homogenizing device 2 from the feed inlet 11, then enters the transverse cavity 13 through the first homogenizing device 2, and then enters the second homogenizing device 3 in the longitudinal cavity 14 through the transverse cavity 13. The second homogenizing device 3 rotates to fully intercept the slurry in the longitudinal cavity 14, and then is rotationally output to the discharge outlet 12 through the second homogenizing device 3, completing the two-stage stirring of the slurry and finally outputting.

[0037] It should be understood that in this process, after the slurry passes through the first homogenizing device 2, it then enters the second homogenizing device 3 through the longitudinal cavity 14. Under the horizontal rotation and longitudinal rotation stirring, the slurry flow state appears uniform and stable, improving the uniformity of the longitudinal and transverse arrangement of the slurry flow limit. After the slurry passes through the slow-rotating first homogenizing device 2 and the second homogenizing device 3, the flow pressure of the slurry decreases, forming a gentle and stable flow, which will prompt the air and foam in the slurry flow to disappear. At the same time, it is beneficial to the full dispersion of fibers and improves the product quality of refined cotton.

[0038] Preferably, the tank body 1 can be a T-shaped tank or an L-shaped tank, with one first homogenization device 2 and one second homogenization device 3, or it can be a "匚"-shaped tank, with two first homogenization devices 2 contained in two transverse cavities 13 and one second homogenization device 3 installed in one longitudinal cavity 14.

[0039] Preferably, the rotation speeds of the first homogenizing device 2 and the second homogenizing device 3 are both relatively slow to ensure that the slurry does not bear a large centrifugal force and cannot achieve the effect of uniform stirring.

[0040] On the basis of Example 1, Example 2: Figure 1-3 As shown, the first homogenizing device 2 includes a first connecting shaft 21, a first centrifugal disk 22, a first material distribution roller 23 and a spiral flow channel 24; the first connecting shaft 21 is rotatably installed in the transverse cavity 13 and is perpendicular to the feed port 11, the first material distribution roller 23 is sleeved on the first connecting shaft 21, and the first centrifugal disk 22 has two respectively installed at both ends of the first connecting shaft 21, and the first centrifugal disk 22 connects the first connecting shaft 21 and the first material distribution roller 23, the spiral flow channel 24 is spirally installed on the outside of the first material distribution roller 23, and the spiral flow channel 24 covers and connects the entire feed port 11; a plurality of first through holes 241 are evenly distributed on the outer wall of the spiral flow channel 24, and the plurality of first through holes 241 connect the interior of the spiral flow channel 24 and the transverse cavity 13.

[0041] Specifically, the first connecting shaft 21 rotates in the transverse cavity 13 and drives the first centrifugal disc 22, the first material distribution roller 23 and the spiral flow channel 24 to rotate, wherein the first centrifugal disc 22 is used to centrifuge the slurry entering from the feed port 11 into the spiral flow channel 24, and the spiral flow channel 24 is spirally wrapped around the outside of the first material distribution roller 23. The entering slurry enters from the feed port 11 and flows along the spiral flow channel 24 and is gradually output from the multiple first through holes 241 to the transverse cavity 13, and finally transported to the longitudinal cavity 14.

[0042] It should be understood that the slurry enters the spiral flow channel 24 from the feed port 11. The spiral flow channel 24 can effectively prolong the flow time of the slurry in the flow channel. Through rotation, a relatively strong small vortex can be formed, so that the slurry flow is in a micro-turbulent state, thereby dispersing the fibers in the slurry flow and avoiding fiber flocculation. It can effectively promote the full dispersion of the fibers and improve the quality of refined cotton.

[0043] On the basis of Example 2, Example 3: Figure 3 As shown, the inner wall of the first material leveling roller 23 is provided with a heating layer 231 close to the spiral flow channel 24 and an ultrasonic generator 232 installed on the inner side of the heating layer 231 .

[0044] It should be understood that the heating and temperature rise of the heating layer 231 can accelerate the reaction of the treatment liquid in the slurry with components such as hemicellulose and lignin in the fiber. The ultrasonic generator 232 promotes the rapid influx of the treatment liquid into the fiber by emitting ultrasonic waves, deeply dissolving components such as hemicellulose and lignin, and further improving the quality of refined cotton.

[0045] Based on Example 2, Example 4: As Figure 2 shown, an access port 242 is provided at the connection between the front end of the spiral flow channel 24 and the feed port 11.

[0046] It should be understood that the access port 242 facilitates the slurry to enter the spiral flow channel 24 along the access port 242 when entering from the feed port 11, improving the entry efficiency of the slurry.

[0047] Based on Example 2, Example 5: As Figure 2 shown, the first homogenizing device 2 further includes a first driving device, which is installed outside the tank body 1 and is connected to and drives the first connecting shaft 21 to rotate.

[0048] It should be understood that the first driving device is used to provide power for the rotation of the first connecting shaft 21 to ensure the rotational operation of the first material homogenizing roller 23 and the spiral flow channel 24.

[0049] Based on Example 1, Example 6: As Figure 4 shown, the second homogenizing device 3 includes a second connecting shaft 31, a second centrifugal disc 32, a second material homogenizing roller 33, and a cylindrical flow channel 34. The second connecting shaft 31 is rotatably installed in the longitudinal cavity 14 and is parallel to the discharge port 12. The second material homogenizing roller 33 is sleeved on the second connecting shaft 31. There are two second centrifugal discs 32, which are respectively installed at both ends of the second connecting shaft 31 and are respectively connected to the second connecting shaft 31 and the second material homogenizing roller 33. The cylindrical flow channel 34 is sleeved outside the second material homogenizing roller 33, and the cylindrical flow channel 34 is in sliding contact with the inner walls of the upper and lower ends of the longitudinal cavity 14. A plurality of second through holes 341 are uniformly provided on the cylindrical flow channel 34, and the plurality of second through holes 341 communicate the inside of the cylindrical flow channel 34 and the longitudinal cavity 14.

[0050] Specifically, the second connecting shaft 31 drives the second centrifugal disc 32, the second material leveling roller 33 and the cylindrical flow channel 34 to rotate in the longitudinal cavity 14. The second centrifugal disc 32 is used to support and connect the rotation of the second material leveling roller 33. There is a gap between the inner wall of the cylindrical flow channel 34 and the outer side of the second material leveling roller 33, and this gap is the rotation path of the slurry. When the slurry flows into the longitudinal cavity 14 through the transverse cavity 13, since the cylindrical flow channel 34 is in sliding contact with the inner walls of the upper and lower ends of the longitudinal cavity 14, it can fully intercept the slurry discharged from the first homogenizing device 2. Under the rotation of the cylindrical flow channel 34, the slurry enters the gap through a plurality of second through holes 341 on the side close to the transverse cavity 13, and then is discharged from a plurality of second through holes 341 on the other side, and finally is discharged from the discharge port 12.

[0051] It should be understood that after the first homogenizing device 2 in the transverse cavity 13 completes the transverse stirring of the slurry, the second homogenizing device 3 in the longitudinal cavity 14 completes the longitudinal stirring of the slurry. The longitudinal stirring is through rotation and extrusion, so that the slurry enters through the second through holes 341 and comes out from the second through holes 341 at the other end. This process ensures the uniformity of stirring in place and realizes the uniform and stable state of the slurry flow on the one hand, and on the other hand, improves the uniformity of the longitudinal and transverse arrangement of the slurry flow limit, reduces the longitudinal and transverse tensile ratio of the refined cotton limit, and further improves the quality of the slurry.

[0052] On the basis of Embodiment 6, Embodiment 7: As Figure 4 shown, the second through hole 341 is a horizontally long hole structure, and the long side of the second through hole 341 is parallel to the axial direction of the second connecting shaft 31.

[0053] It should be understood that the horizontally long hole structure is more convenient for the slurry to enter under extrusion during rotation, and at the same time, it can also increase the arrangement direction of the transverse fibers during axial rotation, reduce the fiber longitudinal and transverse tensile ratio, and improve the quality of the slurry.

[0054] On the basis of Embodiment 6, Embodiment 8: As Figure 4 shown, the second homogenizing device 3 further includes a second driving device. The second driving device is installed on the outer side of the tank body 1 and is connected to and drives the second connecting shaft 31 to rotate.

[0055] It should be understood that the second driving device is used to drive the second connecting shaft 31 to rotate, and the rotation speed is relatively slow to prevent the slurry from not being able to enter the cylindrical flow channel 34 due to excessive centrifugal force, and to ensure the rotation and operation of the second material leveling roller 33 and the cylindrical flow channel 34.

[0056] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A refined cotton homogenizing device, characterized in that, Including: A tank body (1), a first homogenizing device (2), and a second homogenizing device (3); Inside the tank body (1), a transverse cavity (13) and a longitudinal cavity (14) are provided. One end of the transverse cavity (13) is communicated with one end of the longitudinal cavity (14). At the other end of the transverse cavity (13), a feed inlet (11) is provided. At the middle of the other end of the longitudinal cavity (14), a discharge outlet (12) is provided. The first homogenizing device (2) is horizontally rotatably installed in the transverse cavity (13). The first homogenizing device (2) is communicated with the feed inlet (11) and is connected to the transverse cavity (13) with a gap. The second homogenizing device (3) is longitudinally rotatably installed in the longitudinal cavity (14) and is in sliding contact with the inner wall of the longitudinal cavity (14). The discharge outlet (12) and the second homogenizing device (3) are distributed at intervals.

2. The refined cotton homogenizing device according to claim 1, characterized in that The first homogenizing device (2) includes a first connecting shaft (21), a first centrifugal disc (22), a first material homogenizing roller (23), and a spiral flow channel (24). The first connecting shaft (21) is rotatably installed in the transverse cavity (13) and is perpendicular to the feed inlet (11). The first material homogenizing roller (23) is sleeved on the first connecting shaft (21). There are two first centrifugal discs (22) respectively installed at both ends of the first connecting shaft (21). The first centrifugal disc (22) connects the first connecting shaft (21) and the first material homogenizing roller (23). The spiral flow channel (24) is spirally installed around the outside of the first material homogenizing roller (23), and the spiral flow channel (24) covers and communicates with the entire feed inlet (11). A plurality of first through holes (241) are uniformly distributed on the outer wall of the spiral flow channel (24). The plurality of first through holes (241) communicate the inside of the spiral flow channel (24) and the transverse cavity (13).

3. The refined cotton homogenizing device according to claim 2, wherein, On the inner side wall of the first material homogenizing roller (23), a heating layer (231) close to the spiral flow channel (24) and an ultrasonic generator (232) installed inside the heating layer (231) are provided.

4. The refined cotton homogenizing device according to claim 2, characterized in that, At the connection between the front end of the spiral flow channel (24) and the feed inlet (11), an access port (242) is provided.

5. The refined cotton homogenizing device according to claim 2, characterized in that, The first homogenizing device (2) further includes a first driving device. The first driving device is installed outside the tank body (1) and is connected to and drives the first connecting shaft (21) to rotate.

6. The refined cotton homogenizing device according to claim 1, characterized in that, The second homogenizing device (3) includes a second connecting shaft (31), a second centrifugal disc (32), a second material leveling roller (33) and a cylindrical flow channel (34). The second connecting shaft (31) is rotatably installed in the longitudinal cavity (14) and is parallel to the discharge port (12). The second material leveling roller (33) is sleeved on the second connecting shaft (31). There are two second centrifugal discs (32) respectively installed at both ends of the second connecting shaft (31) and respectively connecting the second connecting shaft (31) and the second material leveling roller (33). The cylindrical flow channel (34) is sleeved outside the second material leveling roller (33), and the cylindrical flow channel (34) is in sliding contact with the inner walls of the upper and lower ends of the longitudinal cavity (14). A plurality of second through holes (341) are uniformly arranged on the cylindrical flow channel (34), and the plurality of second through holes (341) communicate the inside of the cylindrical flow channel (34) and the longitudinal cavity (14).

7. The refined cotton homogenizing device according to claim 6, characterized in that, The second through hole (341) is a horizontally elongated hole structure, and the long side of the second through hole (341) is parallel to the axial direction of the second connecting shaft (31).

8. The refined cotton homogenizing device according to claim 6, characterized in that, The second homogenizing device (3) further includes a second driving device. The second driving device is installed outside the tank body (1) and is connected to and drives the second connecting shaft (31) to rotate.

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