A multi-scraper centrifuge

Abstract

This utility model discloses a multi-scraper centrifuge, comprising: a base, a shell, a cover, a third motor, a filter cartridge, and scrapers. The shell is mounted on the base and has a working space inside. The cover is hinged to the shell and has a feed pipe, one end of which extends into the working space, and the other end extends to the outside. The output shaft of the third motor extends into the working space, and a slant disc distributor is connected to the output shaft. One end of the feed pipe is configured to input a solid-liquid mixture into the feed inlet. The slant disc distributor is housed in the central cavity of the filter cartridge and is used to centrifuge and throw the solid-liquid mixture onto the inner wall of the filter cartridge for separation, causing the solid material to adhere to the inner wall of the filter cartridge. Several scrapers are provided and are slidably connected to the cover in the vertical direction. The scrapers can extend into the filter cartridge and abut against the inner wall of the filter cartridge, and are used to scrape off the solid material adhering to the inner wall of the filter cartridge.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, and in particular to a multi-scraper centrifuge. Background Technology

[0002] Scraper centrifuges are common solid-liquid separation equipment. Based on the principle of centrifugal filtration, they use an inclined disc distributor to distribute water-containing materials onto the filter cartridge. The centrifugal force generated by the high-speed rotation of the filter cartridge causes the water-containing materials to separate into solid and liquid components.

[0003] However, after the solid-liquid separation of the water-containing material is completed, the filter cartridge will usually be covered with dehydrated solid material. In the past, a single scraper was used to scrape off the solid material attached to the filter cartridge. Because a single scraper needs to perform high-intensity scraping work continuously, this will reduce the service life of the scraper. In addition, the feed rate of a centrifuge with a single scraper will be controlled very small to ensure that the scraper will not be damaged. This will not only increase the maintenance cost of the centrifuge, but also reduce the production efficiency. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a multi-scraper centrifuge, which can improve working efficiency and extend the life of the scrapers.

[0005] A multi-scraper centrifuge according to an embodiment of the present invention includes: a base, a shell, a cover, a third motor, a filter cartridge, and scrapers. The shell is disposed on the base, and a working space is provided inside the shell. The cover is hinged to the shell, and a feed pipe is disposed on the cover. One end of the feed pipe extends into the working space, and the other end extends to the outside. The third motor is mounted on the cover, and the output shaft of the third motor extends into the working space. A slant disc feeder is connected to the output shaft of the third motor, and a feed inlet is provided at the upper end of the slant disc feeder. One end of the feed tube is configured to input a solid-liquid mixture into the feed inlet of the inclined disc distributor; the filter cartridge is rotatably disposed within the working space, and the inclined disc distributor is housed in the central cavity of the filter cartridge. The inclined disc distributor is used to centrifugally eject the solid-liquid mixture onto the inner wall of the filter cartridge. The filter cartridge is used to separate liquid and solid materials, allowing the solid materials to adhere to the inner wall of the filter cartridge; several scrapers are provided, and the scrapers are slidably connected to the cover in the vertical direction. The scrapers can extend into the filter cartridge and abut against the inner wall of the filter cartridge. The scrapers are used to scrape off the solid materials adhering to the inner wall of the filter cartridge.

[0006] It has at least the following beneficial effects: the base provides an installation foundation for other components, the cover is used to enclose the working space, the third motor is set on the cover, the third motor drives the slant disc distributor to rotate, the slant disc distributor is used to throw the solid-liquid mixture onto the inner wall of the filter cartridge, the solid material adheres to the inner wall of the filter cartridge, the liquid is filtered out through the filter cartridge, and several scrapers are provided, which can scrape the material at the same time, thereby improving the material scraping efficiency and extending the scraper life.

[0007] According to some embodiments of the present invention, the multi-scraper centrifuge further includes a cleaning tube, the inlet of which is connected to the outside, and the outlet of which is located within the working space. The cleaning tube is used to clean the solid material adhering to the filter cartridge.

[0008] According to some embodiments of the present invention, the multi-scraper centrifuge further includes a drying device, which is disposed on the outer shell and is used to dry the cleaned solid material.

[0009] According to some embodiments of this utility model, the drying device is a blower.

[0010] According to some embodiments of this utility model, the scraper extends upward and is provided with a rack, the cover is provided with a first motor, the output shaft of the first motor is connected to a gear, the gear meshes with the rack, the first motor rotates to drive the rack to move upward or downward, and the rack drives the scraper to move upward or downward.

[0011] According to some embodiments of the present invention, a discharge pipe is provided at the bottom of the outer shell, the discharge pipe is connected to the working space, and the discharge pipe is used to discharge materials.

[0012] According to some embodiments of the present invention, a crushing impeller is provided in the working space, the crushing impeller is located at the bottom of the working space, and the crushing impeller is used to crush the solid material scraped off by the scraper.

[0013] According to some embodiments of this utility model, a second motor is provided on the base, a drive wheel is provided on the output shaft of the second motor, a driven wheel is provided on the crushing impeller, and a belt is provided on the drive wheel and the driven wheel. The drive wheel drives the driven wheel to rotate through the belt, and the rotation of the driven wheel drives the crushing impeller to rotate.

[0014] According to some embodiments of the present invention, a drain pipe is provided on the outer shell, the drain pipe is connected to the working space, and the drain pipe is used for draining liquid.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of a multi-scraper centrifuge according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a multi-scraper centrifuge with the cover opened according to an embodiment of the present invention; Figure 3 for Figure 1 The front view; Figure 4 for Figure 1 Rear view; Figure 5 for Figure 1 Top view; Figure 6 This is a schematic diagram of the internal structure of a multi-scraper centrifuge according to an embodiment of the present invention; Figure 7 for Figure 6 The front view; Reference numerals: Base 100, Second motor 110; 200 outer casing, 210 working space, 211 crushing impeller, 220 filter cartridge, 230 discharge pipe, 240 drain pipe; Cover 300, inclined plate feeder 310, feed pipe 320, cleaning pipe 330, scraper 340, rack 341, first motor 350, third motor 360; Drying device 400. Detailed Implementation

[0017] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0018] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0019] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0020] Reference Figures 1 to 7 This utility model discloses a multi-scraper centrifuge, including: a base 100, a shell 200, a cover 300, a third motor 360, a filter cartridge 220, and a scraper 340.

[0021] The outer casing 200 is mounted on the base 100. The outer casing 200 has a working space 210 inside. The working space 210 is a rotating structure. The rotating structure can avoid dead corners, making it easy for the liquid to flow smoothly after being separated from the solid-liquid mixture, and also making it easy for water to flow smoothly after subsequent cleaning.

[0022] The cover 300 is hinged to the outer shell 200. The cover 300 is provided with a feed pipe 320. One end of the feed pipe 320 extends into the working space 210, and the other end extends to the outside. The cover 300 is hinged to the outer shell 200 to facilitate opening or closing the cover 300, thereby exposing or closing the working space 210 to the outside. The cover 300 serves as the mounting base for other components. The feed pipe 320 is installed on the cover 300. One end of the feed pipe 320 is located inside the working space 210, and the other end extends to the outside. The feed pipe 320 is used to transfer solid-liquid mixtures from the outside to the working space 210.

[0023] The third motor 360 is mounted on the cover 300. The output shaft of the third motor 360 extends to the working space 210. A slant disc feeder 310 is connected to the output shaft of the third motor 360. The upper end of the slant disc feeder 310 is provided with a feed port. One end of the feed pipe 320 is configured to input the solid-liquid mixture into the feed port of the slant disc feeder 310. The third motor 360 is used to drive the slant disc feeder 310 to rotate. The feed pipe 320 is used to convey the solid-liquid mixture into the slant disc feeder 310. The slant disc feeder 310 rotates to throw the solid-liquid mixture out.

[0024] The filter cartridge 220 is rotatably mounted within the working space 210. The inclined disc distributor 310 is housed in the central cavity of the filter cartridge 220. The inclined disc distributor 310 is used to centrifugally throw the solid-liquid mixture onto the inner wall of the filter cartridge 220. The filter cartridge 220 separates the liquid and solid materials, allowing the solid materials to adhere to the inner wall of the filter cartridge 220. The filter cartridge 220 is provided with several filter holes. The inclined disc distributor 310 rotates to throw the solid-liquid mixture onto the inner side of the filter cartridge 220. The liquid in the solid-liquid mixture passes through the filter holes into the space between the outer wall of the filter cartridge 220 and the outer shell 200. This space is the drain space. The solid materials in the solid-liquid mixture adhere to the inner wall of the filter cartridge 220. It can be understood that the size of the filter holes can be adjusted according to the particle size of the solid materials.

[0025] Several scrapers 340 are provided. The scrapers 340 are slidably connected to the cover 300 in the vertical direction. The scrapers 340 can extend into the filter cylinder 220 and abut against the inner wall of the filter cylinder 220. The scrapers 340 are used to scrape off the solid material adhering to the inner wall of the filter cylinder 220. Several scrapers 340 are evenly arranged along the filter cylinder 220 and are moved in the vertical direction. The scrapers 340 are used to scrape the solid material off the filter cylinder 220. Several scrapers 340 can scrape the material at the same time, which increases the scraping efficiency and extends the life of the scrapers 340. It can be understood that the number of scrapers 340 can be changed according to the size of the filter cylinder 220. When the size of the filter cylinder 220 is large, the cross-sectional area of ​​the material to be scraped is large. The number of scrapers 340 can be increased appropriately to speed up the scraping of solid material.

[0026] In some embodiments, refer to Figures 1 to 7 The scraper centrifuge also includes a cleaning pipe 330. The inlet of the cleaning pipe 330 is connected to the outside, and the outlet of the cleaning pipe 330 is located in the working space 210. The cleaning pipe 330 is used to clean the solid material attached to the filter cartridge 220. The upper end of the cleaning pipe 330 is connected to a cleaning liquid storage tank (not shown in the figure). When the solid material attached to the inner wall of the filter cartridge 220 reaches a certain thickness, the feed pipe 320 stops feeding, and the outlet of the cleaning pipe 330 is aligned with the solid material attached to the filter cartridge 220. The cleaning pipe 330 discharges cleaning liquid to clean the solid material, mainly to remove the liquid attached to the surface of the solid material and ensure the purity of the solid material. The cleaning liquid can be pure water, or other washing liquids.

[0027] In some embodiments, refer to Figures 1 to 7The Honda scraper centrifuge also includes a drying device 400, which is mounted on the outer casing 200. The drying device 400 is used to dry the cleaned solid materials. The drying device is used to accelerate the evaporation of the cleaning liquid on the surface of the solid materials, thereby increasing work efficiency. It can be understood that after the solid-liquid separation of the materials is completed, when it is necessary to clean the components in the working space 210, the drying device 400 can also quickly dry the working space 210 to prevent the cleaning liquid from remaining in the working space 210 for a long time, avoid corrosion of the components in the working space 210, and extend the service life of the Honda scraper centrifuge.

[0028] In some embodiments, the drying device 400 is a blower that outputs hot air. The hot air accelerates the evaporation of the liquid by increasing the flow rate and temperature on the liquid surface, enabling the washing liquid on the surface of the solid material to evaporate quickly, shortening the drying time of the washing liquid, and thus improving work efficiency.

[0029] In some embodiments, refer to Figures 1 to 7 The scraper 340 extends upward and is provided with a rack 341. A first motor 350 is provided on the cover 300. A gear is connected to the output shaft of the first motor 350. The gear meshes with the rack 341. The first motor 350 rotates to drive the rack 341 to move upward or downward. The rack 341 drives the scraper 340 to move upward or downward. The gear and rack 341 transmission is smooth and has little impact. It has a long service life and good environmental adaptability. Furthermore, each scraper 340 is independently controlled by its corresponding first motor 350. Each scraper 340 is independent of each other. During operation, damage to one scraper 340, its corresponding first motor 350, and other components will not affect the operation of other scrapers 340. Damaged components can be replaced after the work is completed. It is understood that the rack 341 and gear driving the scraper 340 can also be changed to a cylinder, electric cylinder, or hydraulic device to drive the scraper 340.

[0030] In some embodiments, refer to Figures 1 to 7 The bottom of the outer casing 200 is provided with a discharge pipe 230, which is connected to the working space 210. The discharge pipe 230 is used to discharge materials. The discharge pipe 230 is connected to a storage tank. The discharge pipe 230 is a conventional setting and will not be described in detail.

[0031] In some embodiments, refer to Figure 6 and Figure 7A crushing impeller 211 is installed in the working space 210. The crushing impeller 211 is located at the bottom of the working space 210. The crushing impeller 211 is used to crush the solid material scraped off by the scraper 340. The crushing impeller 211 is located between the working space 210 and the discharge pipe 230. After the solid material is scraped off from the inner wall of the filter cylinder 220, the scraped solid material is usually in the form of flakes. The crushing impeller 211 can shear and crush the flake solid material to facilitate subsequent processing.

[0032] In some embodiments, refer to Figures 1 to 7 A second motor 110 is installed on the base 100. A drive wheel is installed on the output shaft of the second motor 110. A driven wheel is installed on the crushing impeller 211. A belt is installed on the drive wheel and the driven wheel. The drive wheel drives the driven wheel to rotate through the belt. The rotation of the driven wheel drives the crushing impeller 211 to rotate. The second motor 110 drives the crushing impeller 211 to shear solid materials, reduce the volume of solid materials, and facilitate subsequent processing.

[0033] In some embodiments, refer to Figures 1 to 7 The outer casing 200 is provided with a drain pipe 240, which is connected to the working space 210. The drain pipe 240 is used for draining liquid. A drain space is defined between the inner wall of the outer casing 200 and the outer side of the filter cartridge 220. The drain pipe 240 is connected to the bottom of the drain space. The liquid after filtering and washing solid materials is discharged through the drain pipe 240. It should be noted that the drain space is part of the working space 210.

[0034] It should be noted that all the above directional descriptions are descriptions of the directional relationships of each component when the cover 300 covers the working space 210.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A multi-scraper centrifuge, characterized in that, include: Base (100); A housing (200) is disposed on the base (100), and a working space (210) is provided inside the housing (200). A cover (300) is hinged to the outer shell (200). A feed pipe (320) is provided on the cover (300). One end of the feed pipe (320) extends to the working space (210), and the other end of the feed pipe (320) extends to the outside. A third motor (360) is installed on the cover (300). The output shaft of the third motor (360) extends to the working space (210). A slant feeder (310) is connected to the output shaft of the third motor (360). The upper end of the slant feeder (310) is provided with a feed inlet. One end of the feed pipe (320) is configured to input solid-liquid mixture into the feed inlet of the slant feeder (310). The filter cartridge (220) is rotatably disposed within the working space (210). The inclined disc distributor (310) is housed in the central cavity of the filter cartridge (220). The inclined disc distributor (310) is used to centrifugally throw the solid-liquid mixture onto the inner wall of the filter cartridge (220). The filter cartridge (220) is used to separate liquid and solid materials, so that the solid materials adhere to the inner wall of the filter cartridge (220). A plurality of scrapers (340) are provided. The scrapers (340) are slidably connected to the cover (300) in the up-down direction. The scrapers (340) can extend into the filter cylinder (220) and abut against the inner wall of the filter cylinder (220). The scrapers (340) are used to scrape off solid materials adhering to the inner wall of the filter cylinder (220).

2. A multi-scraper centrifuge according to claim 1, characterized in that, It also includes a cleaning tube (330), the inlet of which is connected to the outside, and the outlet of which is located in the working space (210). The cleaning tube (330) is used to clean the solid material attached to the filter cartridge (220).

3. A multi-scraper centrifuge according to claim 1, characterized in that, It also includes a drying device (400), which is disposed on the housing (200) and is used to dry the cleaned solid material.

4. A multi-scraper centrifuge according to claim 3, characterized in that, The drying device (400) is a blower.

5. A multi-scraper centrifuge according to claim 1, characterized in that, The scraper (340) extends upward and is provided with a rack (341). The cover (300) is provided with a first motor (350). A gear is connected to the output shaft of the first motor (350). The gear meshes with the rack (341). The first motor (350) rotates to drive the rack (341) to move upward or downward. The rack (341) drives the scraper (340) to move upward or downward.

6. A multi-scraper centrifuge according to claim 1, characterized in that, The bottom of the outer shell (200) is provided with a discharge pipe (230), which is connected to the working space (210) and is used to discharge materials.

7. A multi-scraper centrifuge according to claim 1, characterized in that, The working space (210) is provided with a crushing impeller (211), which is located at the bottom of the working space (210). The crushing impeller (211) is used to crush the solid material scraped off by the scraper (340).

8. A multi-scraper centrifuge according to claim 7, characterized in that, A second motor (110) is provided on the base (100), a drive wheel is provided on the output shaft of the second motor (110), a driven wheel is provided on the crushing impeller (211), and belts are provided on the drive wheel and the driven wheel. The drive wheel drives the driven wheel to rotate through the belt, and the driven wheel rotates to drive the crushing impeller (211) to rotate.

9. A multi-scraper centrifuge according to claim 1, characterized in that, The outer casing (200) is provided with a drain pipe (240), which is connected to the working space (210) and is used for draining liquid.

Images