Down feather raw material whitening device
By designing a down raw material whitening device including a stirring assembly, drive assembly, lift assembly and sewage discharge assembly, the problems of uneven detergent input and fine crushed slurry in the existing device are solved, and more efficient down raw material cleaning and better cleaning effects are achieved.
Patent Information
- Application Number
- CN202422168881.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-09-04
AI Technical Summary
During the cleaning process of the existing down raw material whitening device, the detergent input is uneven, resulting in poor cleaning efficiency and effect of down raw materials. At the same time, the fine crushed velvet floats on the water surface, affecting the cleaning effect.
A down raw material whitening device including a stirring assembly, a drive assembly, a lift assembly and a sewage discharge assembly is designed. The agitating assembly evenly sprinkles detergent through the liquid spray hole, and increases the contact area between the down raw material and the detergent by agitation. The lifting component drives the mixing component downward to ensure that the down material is immersed in the cleaning mesh barrel. The sewage discharge components realize the collection and discharge of large and small weight impurities.
By sprinkling detergent evenly and effectively stirring, the cleaning efficiency and effect of down raw materials are improved. At the same time, through effective sewage discharge design, dirt and impurities are avoided from staying in the equipment for too long, further improving the cleaning effect.
Smart Images

Figure CN222961625U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of down raw material processing, in particular to a down raw material whitening device. Background Technique
[0002] Down is a natural material composed of a mixture of feathers and fluff. The raw materials are generally taken from waterfowl such as geese and ducks. Because of its characteristics such as warmth retention, lightness, and softness, it is widely used in the fields of clothing and bedding. In order to avoid the influence of foreign objects and peculiar smells in the down raw materials on the quality of down, before the down is filled into clothes, a whitening device is needed to clean the down raw materials to remove foreign objects and peculiar smells and make them whiter and brighter.
[0003] When the existing down raw material whitening device is in use, generally the down raw materials are directly put into the device mixed with detergent for soaking and cleaning or stirring and cleaning. However, since the detergent input port is fixedly arranged on one side of the device, after the detergent enters the device from one side of the device, the time required for it to be evenly mixed with water is long, and the contact area between the down raw materials and the detergent is small, which has a certain impact on the cleaning efficiency and cleaning effect of the down raw materials. At the same time, during the cleaning process, a part of the fine fluff doped in the down raw materials will float on the water surface. These unqualified raw materials cannot sink to the bottom like large-weight impurities and be discharged through the drain port, resulting in more and more floating objects accumulating and staying on the water surface, which will affect the cleaning effect of the down raw materials. Content of the Utility Model
[0004] The purpose of the utility model is to provide a down raw material whitening device to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A down raw material whitening device, including a bottom plate, a first cylinder is arranged above the bottom plate, a second annular seat is fixedly connected to the bottom of the first cylinder, a plurality of support columns are symmetrically installed at the bottom of the second annular seat, the bottom ends of the support columns are connected to the bottom plate, a second cylinder is arranged above the first cylinder, a annular net plate is fixedly connected to the top of the inner cavity of the second cylinder, a cleaning net cylinder is fixedly installed inside the annular net plate, a first hollow tube is coaxially arranged inside the cleaning net cylinder, and further includes:
[0006] A stirring assembly arranged outside the first hollow tube and capable of evenly sprinkling the detergent inside the cleaning net cylinder, a driving assembly is arranged on one side of the first hollow tube and capable of providing a rotational force for the stirring assembly, and a lifting assembly is arranged outside the first cylinder and capable of driving the stirring assembly to enter and exit the cleaning net cylinder;
[0007] A cleaning component arranged on one side of the first cylinder body for inputting detergent into the stirring component. A sewage discharging component for facilitating the discharge of cleaning dirt is arranged on the outer side of the second cylinder body. First annular seats are fixedly connected to the top of the first cylinder body and the bottom of the second cylinder body respectively, and the first annular seats are connected by bolts.
[0008] Preferably, the stirring component includes a pressing screen plate arranged on the outer side of the first hollow tube. First oil cylinders are arranged at the top of both sides of the pressing screen plate. The first oil cylinders are fixedly installed on the U-shaped frame. The output end of the first oil cylinder penetrates through the U-shaped frame and is connected to the pressing screen plate. At least one group of stirrers is arranged below the pressing screen plate. Each group of stirrers includes no less than three second hollow tubes. The multiple second hollow tubes are circumferentially distributed along the outer wall of the first hollow tube. A plurality of liquid spraying holes are symmetrically arranged on the outer side of each second hollow tube. One end of the second hollow tube is connected to the first hollow tube.
[0009] Preferably, the driving component includes a first fixed seat fixed on one side of the U-shaped frame. A driving motor is fixedly installed on the top of the first fixed seat. Pulley wheels are fixedly connected to the output end of the driving motor and the top end of the first hollow tube respectively, and the pulley wheels are connected by a transmission belt.
[0010] Preferably, the lifting component includes support plates arranged on both sides of the first cylinder body. The bottom of the support plate is connected to the bottom plate. A second fixed seat is vertically installed on the side of the support plate away from the U-shaped frame. A second oil cylinder is fixedly installed on the top of the second fixed seat. The output end of the second oil cylinder is connected to the U-shaped frame. Sliders are fixedly connected to both sides of the U-shaped frame. A sliding groove corresponding to the slider is arranged on the other side of the support plate, and the slider is located inside the sliding groove.
[0011] Preferably, the cleaning component includes a liquid storage tank arranged on one side of the first cylinder body. The bottom of the liquid storage tank is connected to the bottom plate. Liquid ports are arranged at the top and bottom of one side of the liquid storage tank respectively. Solenoid valves are installed inside the liquid ports. A water pump box body is fixedly connected to the top of the liquid storage tank. A liquid pumping pump is installed inside the water pump box body. The liquid inlet of the liquid pumping pump is communicated with the inside of the liquid storage tank. The liquid outlet of the liquid pumping pump is connected with a telescopic hose. A rotary joint is connected to the top end of the first hollow tube, and the top end of the telescopic hose penetrates through the water pump box body and is connected to the liquid inlet of the rotary joint.
[0012] Preferably, the sewage discharge assembly includes an overflow tank fixed to the outside of the second cylinder body. A plurality of overflow ports are symmetrically arranged at the top of the second cylinder body. The second cylinder body is communicated with the inside of the overflow tank through the overflow ports. A clean water inlet pipe is connected to one side of the first cylinder body, and a sewage discharge pipe is arranged on the other side of the first cylinder body. One side of the overflow tank is connected to a first distribution pipe, one end of the first distribution pipe is connected to the sewage discharge pipe, the bottom of the first cylinder body is connected to a second distribution pipe, one end of the second distribution pipe is connected to the sewage discharge pipe, and electromagnetic valves are installed inside both the first distribution pipe and the second distribution pipe.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] In the present utility model, the lifting assembly drives the stirring assembly on the U-shaped frame to move down into the cleaning mesh cylinder, so that the down feather raw materials floating on the water surface are immersed in the cleaning mesh cylinder. Then, the stirring assembly, in cooperation with the driving assembly and the cleaning assembly, while spraying the detergent through the liquid spraying holes on the outer side of the second hollow tube, stirs the clean water inside the cleaning mesh cylinder to disperse the down feather raw materials, increasing the contact area between the down feather raw materials and the detergent, and improving the cleaning effect and cleaning efficiency of the down feather raw materials; by setting the sewage discharge assembly, the collection and discharge of large-weight impurities and small-weight impurities are respectively realized. The sewage discharge pipe continuously discharges the dirt, and the clean water inlet pipe continuously inputs clean water, avoiding the overlong stay of dirt and impurities inside the first cylinder body and the second cylinder body, and further improving the cleaning effect and cleaning efficiency. Description of the Drawings
[0015] Figure 1 It is a schematic structural diagram of the down feather raw material whitening device provided by the present utility model;
[0016] Figure 2 It is a schematic structural diagram of the cleaning assembly provided by the present utility model;
[0017] Figure 3 It is a schematic structural diagram of the sewage discharge assembly provided by the present utility model;
[0018] Figure 4 It is a schematic structural diagram of the stirring assembly provided by the present utility model.
[0019] In the figure: 1, bottom plate; 2, first cylinder; 3, second cylinder; 4, first annular seat; 5, second annular seat; 6, support column; 7, annular mesh plate; 8, sewage discharge assembly; 81, overflow tank; 82, overflow port; 83, first distribution pipe; 84, sewage discharge pipe; 85, second distribution pipe; 86, purified water inlet pipe; 9, U-shaped frame; 10, first hollow pipe; 11, stirring assembly; 111, first oil cylinder; 112, pressing mesh plate; 113, second hollow pipe; 114, liquid spraying hole; 12, driving assembly; 121, first fixed seat; 122, driving motor; 123, pulley; 13, cleaning assembly; 131, liquid storage tank; 132, liquid outlet; 133, water pump housing; 134, telescopic hose; 135, rotary joint; 14, lifting assembly; 141, support plate; 142, second oil cylinder; 143, slider; 144, chute; 145, second fixed seat; 15, cleaning mesh cylinder. Detailed implementation manners
[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0021] Please refer to Figures 1-4As shown in the figure, a whitening device for down raw materials includes a bottom plate 1. Above the bottom plate 1, there is a first cylinder 2. The bottom of the first cylinder 2 is fixedly connected to a second annular seat 5. At the bottom of the second annular seat 5, a plurality of support columns 6 are symmetrically installed. The bottom ends of the support columns 6 are connected to the bottom plate 1. Above the first cylinder 2, there is a second cylinder 3. At the top of the inner cavity of the second cylinder 3, an annular mesh plate 7 is fixedly connected. Inside the annular mesh plate 7, a cleaning mesh cylinder 15 is fixedly installed. By setting the annular mesh plate 7 and the cleaning mesh cylinder 15, the fine broken fluff generated during the cleaning process will leave the inner cavity of the second cylinder 3 through the mesh holes on the annular mesh plate 7 and the cleaning mesh cylinder 15, so as to facilitate the collection and discharge of impurities with small weight; coaxially arranged inside the cleaning mesh cylinder 15 is a first hollow tube 10. It also includes: a stirring assembly 11 arranged outside the first hollow tube 10 that can evenly sprinkle the detergent inside the cleaning mesh cylinder 15. By setting the stirring assembly 11, the detergent can be evenly sprinkled and fully mixed with the purified water. The detergent will be completely dissolved in the purified water, so that the detergent can fully contact the down raw materials; on one side of the first hollow tube 10, there is a driving assembly 12 that can provide a rotational force for the stirring assembly 11. By setting the driving assembly 12, the stirring assembly 11 can be driven to rotate, so as to stir the purified water inside the cleaning mesh cylinder 15 to disperse the down raw materials, increasing the contact area between the detergent and the down raw materials, and improving the cleaning efficiency and cleaning effect; outside the first cylinder 2, there is a lifting assembly 14 that can drive the stirring assembly 11 in and out of the cleaning mesh cylinder 15. By setting the lifting assembly 14, the stirring assembly 11 can be driven to leave the cleaning mesh cylinder 15, so as to facilitate the loading and unloading of the down raw materials; a cleaning assembly 13 arranged on one side of the first cylinder 2 that can input the detergent into the stirring assembly 11. By setting the cleaning assembly 13, the washing liquid can be stored, and at the same time, the detergent can be input into the stirring assembly 11; outside the second cylinder 3, there is a sewage discharge assembly 8 that facilitates the discharge of cleaning dirt. By setting the sewage discharge assembly 8, the collection and discharge of impurities with small weight and large weight can be facilitated, and the dirt removal effect is better; at the top of the first cylinder 2 and the bottom of the second cylinder 3, first annular seats 4 are fixedly connected. The first annular seats 4 are connected by bolts. During actual use, the first cylinder 2 and the second cylinder 3 can be separated or combined by disassembling and assembling the bolts on the first annular seats 4, so as to facilitate the maintenance and repair of the cleaning mesh cylinder 15. At the same time, a sealing gasket can be installed between the first annular seats 4, so as to improve the sealing performance between the first cylinder 2 and the second cylinder 3.
[0022] The stirring assembly 11 includes a pressing screen plate 112 disposed outside the first hollow tube 10. At the top of both sides of the pressing screen plate 112, first hydraulic cylinders 111 are provided. The first hydraulic cylinders 111 are fixedly installed on the U-shaped frame 9. The output ends of the first hydraulic cylinders 111 penetrate through the U-shaped frame 9 and are connected to the pressing screen plate 112. By using the first hydraulic cylinders 111, the pressing screen plate 112 can be driven to slide along the axial direction of the first hollow tube 10. After the pressing screen plate 112 extends into the cleaning mesh cylinder 15, it can press the down feather raw materials to make them move downward as a whole and be completely immersed in water, while not preventing small-weight impurities from passing through the mesh holes on the pressing screen plate 112. In this way, it is beneficial for the full contact between the down feather raw materials and the detergent, and avoids incomplete cleaning caused by the floating of the down feather raw materials on the water surface; below the pressing screen plate 112, at least one group of stirrers is provided. Each group of stirrers includes not less than three second hollow tubes 113. The multiple second hollow tubes 113 are circumferentially distributed along the outer wall of the first hollow tube 10. A plurality of liquid spraying holes 114 are symmetrically formed on the outside of each second hollow tube 113. One end of the second hollow tube 113 is connected to the first hollow tube 10. By providing the second hollow tubes 113, after the second hollow tubes 113 are inserted between the down feather raw materials, the multiple liquid spraying holes 114 on both sides thereof will spray out the detergent, so that the washing liquid is evenly distributed at various positions between the down feather raw materials, increasing the contact area between the down feather raw materials and the detergent, and improving the cleaning effect and quality.
[0023] The driving assembly 12 includes a first fixed seat 121 fixed to one side of the U-shaped frame 9. A driving motor 122 is fixedly installed on the top of the first fixed seat 121. The output end of the driving motor 122 and the top end of the first hollow tube 10 are both fixedly connected with belt pulleys 123. The belt pulleys 123 are connected by a transmission belt. By providing the driving motor 122 and the belt pulleys 123, the multiple groups of second hollow tubes 113 at the bottom of the first hollow tube 10 can be driven to rotate simultaneously. While rotating, the multiple groups of second hollow tubes 113 splash the detergent through the liquid spraying holes 114 on one side, and stir the clean water inside the cleaning mesh cylinder 15 to disperse the down feather raw materials on the other side, so that the down feather raw materials will be in full contact with the detergent, which is more beneficial for the shedding of dirt on the outside of the down feather raw materials.
[0024] The lifting assembly 14 includes support plates 141 arranged on both sides of the first cylinder body 2. The bottom of the support plates 141 is connected to the bottom plate 1. On the side of the support plates 141 away from the U-shaped frame 9, a second fixed seat 145 is vertically installed. At the top of the second fixed seat 145, a second oil cylinder 142 is fixedly installed. The output end of the second oil cylinder 142 is connected to the U-shaped frame 9. On both sides of the U-shaped frame 9, sliders 143 are fixedly connected. On the other side of the support plates 141, chutes 144 corresponding to the sliders 143 are provided. The sliders 143 are located inside the chutes 144. By using the second oil cylinder 142, the stirring assembly 11 can be driven away from the cleaning mesh cylinder 15, so that it is convenient for the staff to take out the washed down feather raw materials, which is beneficial to the subsequent drying work of the down feather raw materials. At the same time, by setting the sliders 143 and the chutes 144, the up and down sliding of the stirring assembly 11 on the U-shaped frame 9 is smoother, improving the structural stability.
[0025] The cleaning assembly 13 includes a liquid storage tank 131 arranged on one side of the first cylinder body 2. The bottom of the liquid storage tank 131 is connected to the bottom plate 1. On the top and bottom of one side of the liquid storage tank 131, liquid ports 132 are provided. Inside the liquid ports 132, electromagnetic valves are installed. At the top of the liquid storage tank 131, a water pump box body 133 is fixedly connected. Inside the water pump box body 133, a liquid pumping pump is installed. The liquid inlet of the liquid pumping pump is communicated with the inside of the liquid storage tank 131. The liquid outlet of the liquid pumping pump is connected with a telescopic hose 134. The top end of the first hollow tube 10 is connected with a rotary joint 135. The top end of the telescopic hose 134 penetrates through the water pump box body 133 and is connected with the liquid inlet of the rotary joint 135. By using the liquid pumping pump inside the water pump box body 133, the washing liquid inside the liquid storage tank 131 can be sequentially input into the second hollow tube 113 through the telescopic hose 134, the rotary joint 135, and the first hollow tube 10, and then the washing liquid is sprayed out from the liquid spraying holes 114 on the outside of the second hollow tube 113, so as to realize the uniform mixing of the detergent.
[0026] The sewage discharge assembly 8 includes an overflow tank 81 fixed on the outside of the second cylinder body 3. On the top of the second cylinder body 3, a plurality of overflow ports 82 are symmetrically provided. The second cylinder body 3 is communicated with the inside of the overflow tank 81 through the overflow ports 82. One side of the first cylinder body 2 is connected with a clean water inlet pipe 86, and the other side of the first cylinder body 2 is provided with a sewage discharge pipe 84. One side of the overflow tank 81 is connected with a first distribution pipe 83. One end of the first distribution pipe 83 is connected with the sewage discharge pipe 84. The bottom of the first cylinder body 2 is connected with a second distribution pipe 85. One end of the second distribution pipe 85 is connected with the sewage discharge pipe 84. Inside the first distribution pipe 83 and the second distribution pipe 85, electromagnetic valves are installed. Figure 3As shown, during the cleaning process of the down raw materials inside the cleaning drum 15, large-weight impurities and small-weight impurities will be generated. Among them, the large-weight impurities will sink to the bottom of the first cylinder 2 through the cleaning drum 15 and be discharged from the second distribution pipe 85, while the small-weight impurities will enter the inside of the overflow tank 81 through the pressure-feeding screen plate 112 and the annular screen plate 7 from the overflow port 82 and be discharged from the first distribution pipe 83. In this way, the collection and discharge of large-weight impurities and small-weight impurities are realized, the dirt discharge effect is better, and the down raw materials are whiter and brighter.
[0027] Working principle: First, the staff puts the down raw materials to be cleaned into the cleaning drum 15, then uses the clean water inlet pipe 86 to input clean water inside the first cylinder 2 and the second cylinder 3, and then drives the stirring assembly 11 on the U-shaped frame 9 to move down into the cleaning drum 15 through the lifting assembly 14, so that the down raw materials floating on the water surface are immersed in the cleaning drum 15. Then, under the cooperation of the stirring assembly 11 with the driving assembly 12 and the cleaning assembly 13, while spraying the detergent through the liquid spraying holes 114 on the outer side of the second hollow pipe 113, on the other hand, stirring the clean water inside the cleaning drum 15 to disperse the down raw materials, increasing the contact area between the down raw materials and the detergent, making the down raw materials fully contact with the detergent, improving the cleaning effect and cleaning efficiency of the down raw materials. And by setting the sewage discharge assembly 8, the collection and discharge of large-weight impurities and small-weight impurities are respectively realized. The sewage discharge pipe 84 continuously discharges dirt, and the clean water inlet pipe 86 continuously inputs clean water, avoiding the over-long stay of dirt impurities inside the first cylinder 2 and the second cylinder 3, and further improving the cleaning effect and cleaning efficiency.
[0028] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.
[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A down raw material whitening device, comprising a bottom plate (1), a first cylinder (2) is arranged above the bottom plate (1), a second annular seat (5) is fixedly connected to the bottom of the first cylinder (2), a plurality of pillars (6) are symmetrically installed at the bottom of the second annular seat (5), the bottom ends of the pillars (6) are connected to the bottom plate (1), a second cylinder (3) is arranged above the first cylinder (2), an annular mesh plate (7) is fixedly connected to the top of the inner cavity of the second cylinder (3), a cleaning net cylinder (15) is fixedly installed inside the annular mesh plate (7), a first hollow tube (10) is coaxially arranged inside the cleaning net cylinder (15), characterized in that: Also includes: A stirring assembly (11) is arranged outside the first hollow tube (10) and can evenly sprinkle detergent on the inside of the cleaning net cylinder (15); a driving assembly (12) is arranged on one side of the first hollow tube (10) and can provide a rotational force for the stirring assembly (11); and a lifting assembly (14) is arranged outside the first cylinder (2) and can drive the stirring assembly (11) to enter and exit the cleaning net cylinder (15); A cleaning component (13) is arranged on one side of the first cylinder (2) and can input detergent into the interior of the stirring component (11); a sewage discharge component (8) is arranged on the outside of the second cylinder (3) to facilitate the discharge of sewage; the top of the first cylinder (2) and the bottom of the second cylinder (3) are both fixedly connected to a first annular seat (4); and the first annular seats (4) are connected to each other by bolts.
2. A down raw material whitening device according to claim 1, characterized in that: The stirring assembly (11) comprises a material pressing mesh plate (112) arranged on the outside of the first hollow tube (10), and first oil cylinders (111) are arranged on the top of both sides of the material pressing mesh plate (112). The first oil cylinder (111) is fixedly mounted on the U-shaped frame (9), and the output end of the first oil cylinder (111) passes through the U-shaped frame (9) and is connected to the material pressing mesh plate (112). At least one group of stirrers is arranged below the material pressing mesh plate (112), and each group of stirrers comprises no less than three second hollow tubes (113). The plurality of second hollow tubes (113) are circumferentially distributed along the outer wall of the first hollow tube (10), and the outer side of each second hollow tube (113) is symmetrically provided with a plurality of liquid spray holes (114), and one end of the second hollow tube (113) is connected to the first hollow tube (10).
3. The down raw material whitening device according to claim 1, characterized in that: The driving assembly (12) comprises a first fixing seat (121) fixed to one side of the U-shaped frame (9); a driving motor (122) is fixedly mounted on the top of the first fixing seat (121); a pulley (123) is fixedly connected to the output end of the driving motor (122) and the top end of the first hollow tube (10); and the pulleys (123) are connected to each other via a transmission belt.
4. The down raw material whitening device according to claim 1, characterized in that: The lifting assembly (14) comprises support plates (141) arranged on both sides of the first cylinder (2), the bottom of the support plate (141) is connected to the bottom plate (1), a second fixed seat (145) is vertically installed on the side of the support plate (141) away from the U-shaped frame (9), a second oil cylinder (142) is fixedly installed on the top of the second fixed seat (145), the output end of the second oil cylinder (142) is connected to the U-shaped frame (9), both sides of the U-shaped frame (9) are fixedly connected with sliders (143), and a slide groove (144) corresponding to the slider (143) is opened on the other side of the support plate (141), and the slider (143) is located inside the slide groove (144).
5. The down raw material whitening device according to claim 1, characterized in that: The cleaning assembly (13) comprises a liquid storage tank (131) arranged on one side of the first cylinder (2); the bottom of the liquid storage tank (131) is connected to the bottom plate (1); a liquid port (132) is provided at the top and bottom of one side of the liquid storage tank (131); a solenoid valve is installed inside the liquid port (132); a water pump housing (133) is fixedly connected to the top of the liquid storage tank (131); a liquid pump is installed inside the water pump housing (133); a liquid inlet of the liquid pump is connected to the inside of the liquid storage tank (131); a liquid outlet of the liquid pump is connected to a telescopic hose (134); a rotary joint (135) is connected to the top of the first hollow tube (10); the top of the telescopic hose (134) passes through the water pump housing (133) and is connected to the liquid inlet of the rotary joint (135).
6. The down raw material whitening device according to claim 1, characterized in that: The sewage discharge assembly (8) comprises an overflow groove (81) fixed to the outside of the second cylinder (3); a plurality of overflow ports (82) are symmetrically provided on the top of the second cylinder (3); the second cylinder (3) is connected to the inside of the overflow groove (81) through the overflow ports (82); a clean water inlet pipe (86) is connected to one side of the first cylinder (2); a sewage discharge pipe (84) is provided on the other side of the first cylinder (2); a first distribution pipe (83) is connected to one side of the overflow groove (81); one end of the first distribution pipe (83) is connected to the sewage discharge pipe (84); a second distribution pipe (85) is connected to the bottom of the first cylinder (2); one end of the second distribution pipe (85) is connected to the sewage discharge pipe (84); and electromagnetic valves are installed inside the first distribution pipe (83) and inside the second distribution pipe (85).