Vacuum feeding device and pulping system

Abstract

The utility model relates to a vacuum feeding device and a pulping system. The vacuum feeding device comprises a machine body, the machine body is internally provided with a material cavity, an air exhaust cavity and an air supplementing cavity, the air exhaust cavity and the air supplementing cavity are both located above the material cavity and communicated with the material cavity, the air exhaust cavity and the air supplementing cavity are horizontally arranged, and a feeding port communicated with the material cavity is formed in the machine body; the feeding pipeline assembly is connected with the feeding port and used for inputting powder into the material cavity. According to the vacuum feeding device and the pulping system, the size can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of powder feeding, and in particular to a vacuum feeding device and a pulping system. Background Art

[0002] Vacuum feeding devices are widely used in powder feeding production scenarios in various fields because they can replace manual transfer and pouring and effectively prevent dust from flying.

[0003] The working principle of the vacuum feeding device is as follows: based on the negative pressure generated by the vacuum pump, the powder is sucked into the feeding chamber of the vacuum feeding device from the feeding port, and then the powder and the air flow are separated by the air-powder separator. The separated powder automatically falls due to gravity and is collected in the feeding chamber. After the feeding is completed, the air-powder separator is cleaned by the back-blowing effect of compressed air to remove the powder attached to the air-powder separator.

[0004] In the related art, the vacuum loading device is relatively large in size, resulting in it occupying a large space. Utility Model Content

[0005] Based on this, it is necessary to provide a vacuum feeding device that can reduce the volume to address the above problems.

[0006] A vacuum feeding device, comprising:

[0007] In some embodiments, the machine body has a material cavity, an air extraction cavity and an air replenishing cavity, the air extraction cavity and the air replenishing cavity are both located above the material cavity and are both connected to the material cavity, and the air extraction cavity and the air replenishing cavity are both arranged horizontally, and a feed port connected to the material cavity is opened on the machine body;

[0008] A feed pipe assembly is connected to the feed port and is used to input powder into the feed cavity.

[0009] In some embodiments, the machine body includes a shell, a first partition plate and a second partition plate. The first partition plate is located in the shell and divides the internal space of the shell into the material chamber and the air chamber above the material chamber. The second partition plate is located in the air chamber and the second partition plate is arranged to intersect with the first partition plate and divides the air chamber into the air extraction chamber and the air replenishment chamber.

[0010] In some embodiments, the second partition plate is eccentrically disposed in the air passage cavity to separate the air extraction cavity and the air supply cavity which are disposed side by side in a horizontal direction.

[0011] In some embodiments, the second partition plate is an annular structure, the second partition plate separates the air passage cavity into the air extraction cavity and the air replenishment cavity, and one of the air extraction cavity and the air replenishment cavity is arranged around the periphery of the other of the air extraction cavity and the air replenishment cavity.

[0012] In some embodiments, there are multiple second partition plates, all of which are spaced apart in the air transition cavity, and each of the second partition plates separates the air transition cavity into one of the air extraction cavity and the air replenishing cavity, and the spaces in the air transition cavity other than all of the air extraction cavity and the air replenishing cavity are connected to form the other of the air extraction cavity and the air replenishing cavity.

[0013] In some embodiments, a cross-sectional area of ​​the air extraction cavity is larger than a cross-sectional area of ​​the air supplement cavity.

[0014] In some embodiments, the machine body is provided with an air suction port connected to the material chamber, and the vacuum feeding device further comprises an air suction pipeline assembly, the air suction pipeline assembly is connected to the air suction port and is used to output the air entering the air suction chamber;

[0015] The machine body is provided with an air replenishing port connected with the material cavity. The vacuum feeding device also includes an air replenishing pipeline assembly. The air replenishing pipeline assembly is connected to the air replenishing port and is used to replenish air into the air replenishing cavity.

[0016] In some embodiments, the air extraction port and the air supply port are both located on the top surface of the machine body.

[0017] In some embodiments, the vacuum feeding device also includes a gas-powder separation component, which is arranged in the body, and the interior of the gas-powder separation component is connected between the material chamber and the air suction chamber, and / or the interior of the gas-powder separation component is connected between the material chamber and the air replenishing chamber.

[0018] In some embodiments, there are at least two gas-powder separation components, the interior of at least one gas-powder separation component is communicated with the material chamber and the air extraction chamber, and the interior of at least one gas-powder separation component is communicated with the material chamber and the air replenishment chamber.

[0019] In some embodiments, the vacuum feeding device also includes a back-blowing air source, which is arranged on the machine body and is used to provide a back-blowing airflow for the air extraction chamber and the air replenishing chamber, and the back-blowing airflow is used to blow off the powder on the air-powder separation component.

[0020] In some embodiments, all the gas-powder separation components are at least two groups, the interior of at least one group of the gas-powder separation components is communicated with the material chamber and the air extraction chamber, and the interior of at least one group of the gas-powder separation components is communicated with the material chamber and the air replenishment chamber;

[0021] The vacuum feeding device also includes a backblowing pipe assembly, which includes at least two groups. The number of groups of the backblowing pipe assemblies corresponds one-to-one to the number of groups of the gas-powder separation components. The backblowing pipe assembly is used to blow the backblowing airflow provided by the backblowing air source toward the gas-powder separation components of the corresponding group.

[0022] In some embodiments, the backblowing pipe assembly includes a backblowing main pipe, a backblowing valve and a plurality of backblowing branch pipes, the backblowing valve is arranged on the backblowing main pipe and is used to open and close the backblowing main pipe, one end of the backblowing main pipe is connected to the backblowing gas source, all the backblowing branch pipes are arranged side by side at the other end of the backblowing main pipe along the extension direction of the backblowing main pipe, and all the backblowing branch pipes correspond one-to-one to all the gas-powder separation components of the corresponding group, and the outlets of the backblowing branch pipes face the corresponding gas-powder separation components.

[0023] In some embodiments, a discharge port connected to the material chamber is provided on the machine body, and the vacuum feeding device further comprises a discharge pipe assembly, wherein the discharge pipe assembly is connected to the discharge port and is used to discharge the powder in the material chamber to the outside.

[0024] A pulping system, comprising:

[0025] pulping equipment; and

[0026] The vacuum feeding device as described in any one of the above embodiments is used to transport powder to the pulping device.

[0027] The above-mentioned vacuum feeding device and pulping system, by arranging the vacuum chamber and the air replenishing chamber both above the material chamber, and the vacuum chamber and the air replenishing chamber are both arranged horizontally, can make full use of the space of the machine body above the material chamber for vacuum and air replenishment, which is beneficial to reducing the volume and occupied space of the vacuum feeding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the cooperation between the vacuum feeding device and the pulping device in one embodiment of the present application.

[0029] Figure 2 for Figure 1 The schematic diagram of the structure of the vacuum feeding device shown is after removing the discharge pipe assembly and the lower shell.

[0030] Figure 3 for Figure 2The schematic diagram of the structure of the vacuum feeding device with the top cover removed is shown.

[0031] Figure 4 for Figure 3 A top view of the vacuum loading device is shown.

[0032] Figure 5 This is a top view of the air duct, the first partition plate, the second partition plate, the upper shell and the gas-powder separation component after being assembled in one embodiment of the present application.

[0033] Figure 6 This is a top view of the air duct, the first partition plate, the second partition plate, the upper shell and the gas-powder separation component after being assembled in another embodiment of the present application.

[0034] Figure 7 This is a top view of the air duct, the first partition plate, the second partition plate, the upper shell and the gas-powder separation component after being assembled in another embodiment of the present application.

[0035] Figure 8 This is a top view of the air duct, the first partition plate, the second partition plate, the upper shell and the gas-powder separation component after being assembled in another embodiment of the present application.

[0036] Figure Number:

[0037] 1. Vacuum feeding device;

[0038] 10. Machine body; 20. Gas-powder separation component; 30. Back-blowing air source; 40. Back-blowing pipeline assembly; 50. Air extraction pipeline assembly; 60. Air supply pipeline assembly; 70. Feed pipeline assembly; 80. Discharge pipeline assembly; 90. Air guide pipe;

[0039] 11. Exhaust cavity; 12. Air supply cavity; 13. Material cavity; 14. Air passage cavity; 15. Upper shell; 151. Top cover; 152. Side plate; 16. Lower shell; 17. First partition plate; 18. Second partition plate; 19. Air supply port; 21. Exhaust port; 22. Feed port; 23. Discharge port; 24. Shell; 41. Back-blow main pipe; 42. Back-blow valve; 43. Back-blow branch pipe; 51. Exhaust pipe; 52. Exhaust valve; 61. Air supply pipe; 62. Air supply valve; 71. Feed pipe; 72. Feed valve; 81. Discharge pipe; 82. Discharge valve. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0041] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0046] See also Figure 1 The present application provides a vacuum feeding device 1, which is used to feed powder. For example, in the field of lithium battery manufacturing, the vacuum feeding device 1 is used in the pulping system for preparing electrode slurry, and is used to convey powder, such as, the pulping system includes a pulping device 2 and a vacuum feeding device 1, and the vacuum feeding device 1 conveys powder to the pulping device 2. Of course, the vacuum feeding device 1 is not limited to the field of lithium battery manufacturing, it can also be used in the field of food manufacturing, and is used to convey flour, powdered sugar, starch, yeast, salt and other powders, and can also be used in the field of pharmaceutical manufacturing, and is used to convey powders such as medicinal powder.

[0047] Please also see Figures 1 to 4 The vacuum feeding device 1 includes a body 10, an air-powder separation component 20, an air extraction pipeline assembly 50, an air extraction pump, an air supply pipeline assembly 60, a feed pipeline assembly 70, a discharge pipeline assembly 80, a back-blowing gas source 30 and a back-blowing pipeline assembly 40.

[0048] The machine body 10 has a material chamber 13, an air suction chamber 11 and an air replenishing chamber 12. The air suction chamber 11 and the air replenishing chamber 12 are both located above the material chamber 13 and are connected to the material chamber 13. The air suction chamber 11 and the air replenishing chamber 12 are arranged horizontally.

[0049] Among them, when the air extraction chamber 11 and the air replenishing chamber 12 are arranged horizontally, the air extraction chamber 11 and the air replenishing chamber 12 can be arranged evenly up and down, or they can be staggered up and down to form a step-like structure. The specific arrangement method is not limited here. In addition, when the air extraction chamber 11 and the air replenishing chamber 12 are arranged horizontally, the air extraction chamber 11 and the air replenishing chamber 12 can be arranged side by side in the horizontal direction, or one of the air extraction chamber 11 and the air replenishing chamber 12 can be arranged around the periphery of the other, and the specific arrangement method is not limited here.

[0050] By arranging the vacuum chamber 11 and the air replenishing chamber 12 above the material chamber 13, and arranging the vacuum chamber 11 and the air replenishing chamber 12 horizontally, the space of the machine body 10 above the material chamber 13 can be fully utilized for vacuuming and replenishing air, which is beneficial to reducing the volume and occupied space of the vacuum feeding device 1.

[0051] Please refer again Figure 1 and Figure 2 Specifically, the body 10 includes a shell 24, a first partition plate 17 and a second partition plate 18. The first partition plate 17 is located in the shell 24, and divides the internal space of the shell 24 into a material chamber 13 and an air chamber 14 located above the material chamber 13. The second partition plate 18 is located in the air chamber 14, and the second partition plate 18 is arranged to intersect with the first partition plate 17, and divides the air chamber 14 into an exhaust chamber 11 and an air replenishing chamber 12.

[0052] As an example, the shell 24 may include a lower shell 16 and an upper shell 15, both of which are hollow structures with one end open and the other end closed, and the upper shell 15 is connected to the lower shell 16 opening, and the first partition plate 17 is located at the opening of the lower shell 16 and the upper shell 15, and the lower shell 16 and the first partition plate 17 define a material cavity 13, and the first partition plate 17 and the upper shell 15 define a gas passage cavity 14. The second partition plate 18 is located in the upper shell 15, and separates the gas passage cavity 14 into an air extraction cavity 11 and an air replenishment cavity 12. In other words, the first partition plate 17, the second partition plate 18 and the upper shell 15 together define the air extraction cavity 11 and the air replenishment cavity 12.

[0053] In some optional embodiments, the first partition plate 17, the second partition plate 18 and the upper shell 15 are connected to form a whole, and the whole is detachable relative to the lower shell 16. In some optional embodiments, the first partition plate 17, the second partition plate 18, the upper shell 15 and the lower shell 16 are integrally arranged, or fixedly connected by welding, gluing, etc.

[0054] In some optional embodiments, the upper shell 15 includes a side plate 152 and a top cover 151, the top cover 151 is disposed on the top side of the side plate 152, the first partition plate 17 is disposed on the bottom side of the side plate 152, and the second partition plate 18 is located between the first partition plate 17 and the top cover 151. The top cover 151 is movably connected to the side plate 152, and the air cavity 14 can be opened or closed to facilitate the assembly of the second partition plate 18 or other components in the air cavity 14.

[0055] The air supply chamber 12 and the air extraction chamber 11 are independently arranged. The first partition plate 17, the second partition plate 18 and the upper shell 15 are divided into the air extraction chamber 11 and the air supply chamber 12 in various ways.

[0056] Combination Figure 4 , Figure 5 and Figure 6 In some optional embodiments of the present application, the second partition plate 18 is eccentrically arranged in the air passage cavity 14 to separate the air extraction cavity 11 and the air replenishment cavity 12 arranged side by side in the horizontal direction. In other words, the air extraction cavity 11 and the air replenishment cavity 12 are arranged side by side in the horizontal direction.

[0057] The second partition plate 18 is eccentrically disposed in the air passage cavity 14 , which means that the second partition plate 18 is offset relative to the central axis of the air passage cavity 14 , and the central axis of the air passage cavity 14 is collinear with the central axis of the upper shell 15 .

[0058] When the second partition plate 18 is eccentrically arranged, one of the air extraction cavity 11 and the air replenishment cavity 12 has a larger cross-sectional area, and the other of the air extraction cavity 11 and the air replenishment cavity 12 has a smaller cross-sectional area. Under this design, the air extraction cavity 11 and the air replenishment cavity 12 can be arranged to have different cross-sectional areas according to actual needs.

[0059] like Figure 5 As shown, as an example, taking the case where the upper shell 15 is connected to the first partition plate 17 to form a hollow rectangular parallelepiped, the second partition plate 18 is a straight plate, and the second partition plate 18 is eccentrically arranged in the air passage cavity 14, and divides the air passage cavity 14 into an air supply cavity 12 with a smaller cross-sectional area and a rectangular parallelepiped, and an air extraction cavity 11 with a larger cross-sectional area and a rectangular parallelepiped.

[0060] like Figure 6 As shown, as an example, taking the structure in which the upper shell 15 is connected to the first partition plate 17 to form a combination of a hollow rectangular parallelepiped and a cylinder as an example, the second partition plate 18 is a straight plate, and the second partition plate 18 is eccentrically arranged in the air cavity 14, and divides the air cavity 14 into an air supply cavity 12 with a smaller cross-sectional area and a rectangular parallelepiped, and an air extraction cavity 11 with a larger cross-sectional area and a cylindrical shape.

[0061] See also Figure 2 , Figure 3 and Figure 7 In some optional embodiments of the present application, the second partition plate 18 is an annular structure, and the second partition plate 18 divides the air cavity 14 into the air extraction cavity 11 and the air replenishment cavity 12, and one of the air extraction cavity 11 and the air replenishment cavity 12 is arranged around the periphery of the other of the air extraction cavity 11 and the air replenishment cavity 12. Under this design, one of the air extraction cavity 11 and the air replenishment cavity 12 can be arranged around the periphery of the other according to actual needs.

[0062] like Figure 7 As shown, as an example, taking the case where the upper shell 15 is connected to the first partition plate 17 to form a hollow regular hexagon, the second partition plate 18 is a ring-shaped structure, and the second partition plate 18 surrounds one of the air extraction chamber 11 and the air replenishment chamber 12 to form a cylindrical shape in the air passage chamber 14, and the other of the air extraction chamber 11 and the air replenishment chamber 12 is arranged around one of the air extraction chamber 11 and the air replenishment chamber 12. In this embodiment, the cross-sectional areas of the air extraction chamber 11 and the air replenishment chamber 12 can be equal or unequal.

[0063] See also Figure 2 , Figure 3 and Figure 8In some optional embodiments of the present application, there are multiple second partition plates 18, all of which are spaced apart in the air passage cavity 14, and each second partition plate 18 separates the air passage cavity 14 into one of an exhaust cavity 11 and an air replenishing cavity 12, and the spaces in the air passage cavity 14 except all the exhaust cavity 11 and one of the air replenishing cavity 12 are connected to form the other of the exhaust cavity 11 and the air replenishing cavity 12.

[0064] like Figure 8 As shown, as an example, the upper shell 15 is connected to the first partition plate 17 to form a hollow cylinder, and the second partition plate 18 is an arc-shaped plate. The inner concave surface of each second partition plate 18 is surrounded by the first partition plate 17 and the upper shell 15 to form a fan-shaped air extraction cavity 11 and one of the air replenishment cavities 12, and the air cavity 14 is connected to the space other than all the air extraction cavities 11 and one of the air replenishment cavities 12 to form a waist-shaped air extraction cavity 11 and the other of the air replenishment cavities 12. In this embodiment, the cross-sectional area of ​​the air extraction cavity 11 and the sum of the cross-sectional areas of all the air replenishment cavities 12 can be equal or different.

[0065] Specifically, the second partition plate 18 is used to separate the air chamber 14 into an air extraction chamber 11 and an air replenishment chamber 12 with equal or unequal cross-sectional areas, such as the cross-sectional area of ​​the air extraction chamber 11 is larger than the cross-sectional area of ​​the air replenishment chamber 12. It can be understood that the air extraction chamber 11 is a space directly acted upon by the air extraction pump. The larger the cross-sectional area of ​​the air extraction chamber 11, the wider the range of action of the air extraction pump, which is conducive to forming a good and reliable negative pressure environment in the air extraction chamber 11, the air replenishment chamber 12 and the material chamber 13. After a negative pressure environment is formed in the air extraction chamber 11, the air replenishment chamber 12 and the material chamber 13, although the cross-sectional area of ​​the air replenishment chamber 12 is small, due to the existence of negative pressure, the external airflow can quickly flow into the material chamber 13 and the air extraction chamber 11 through the air replenishment chamber 12 and replenish air to form a positive pressure environment.

[0066] Please refer again Figure 1 , Figure 2 , Figure 3 and Figure 4 The gas-powder separator 20 is a hollow separation structure, such as a bag or a net. The gas-powder separator 20 is used to separate the airflow and the powder so that the powder can be retained in the material chamber 13.

[0067] Specifically, the gas-powder separator 20 is disposed in the machine body 10 , and the interior of the gas-powder separator 20 is connected between the material chamber 13 and the air extraction chamber 11 , and / or the interior of the gas-powder separator 20 is connected between the material chamber 13 and the air replenishment chamber 12 .

[0068] Specifically, there may be one or at least two gas-powder separators 20. Taking one gas-powder separator 20 as an example, the interior of the gas-powder separator 20 is connected to both the material chamber 13 and the air extraction chamber 11, and also to the material chamber 13 and the air replenishing chamber 12. Taking at least two gas-powder separators 20 as an example, the interior of at least one gas-powder separator 20 is connected to the material chamber 13 and the air extraction chamber 11, and the interior of at least one gas-powder separator 20 is connected to the material chamber 13 and the air replenishing chamber 12. That is to say, the interior of each gas-powder separator 20 is connected to the material chamber 13 and the air extraction chamber 11, or to the material chamber 13 and the air replenishing chamber 12.

[0069] For the convenience of description, the following embodiments are described by taking the example that there are at least two gas-powder separation elements 20 .

[0070] Among them, the gas-powder separator 20 can be partially located in the material chamber 13, and the rest can be located in the air extraction chamber 11 or the air replenishing chamber 12, or the gas-powder separator 20 can be completely located in the material chamber 13, or completely located in the air extraction chamber 11 or the air replenishing chamber 12.

[0071] To facilitate air guiding, the vacuum feeding device 1 further includes a plurality of air ducts 90, and all the air ducts 90 correspond to and are connected to all the air-powder separators 20 one by one. The air ducts 90 are used to gather and guide the airflow, and the air ducts 90 can also be used to install the air-powder separators 20. All the air ducts 90 corresponding to all the air-powder separators 20 connecting the material chamber 13 and the air extraction chamber 11 are arranged in the air extraction chamber 11, and all the air ducts 90 corresponding to all the air-powder separators 20 connecting the material chamber 13 and the air replenishing chamber 12 are arranged in the air replenishing chamber 12. It can be understood that the air-powder separators 20 connected to the air extraction chamber 11 are connected to the air extraction chamber 11 through the air ducts 90, and the air-powder separators 20 connected to the air replenishing chamber 12 are connected to the air replenishing chamber 12 through the air ducts 90.

[0072] Specifically, the number and arrangement of the gas-powder separators 20 in communication with the air extraction chamber 11, and the number and arrangement of the gas-powder separators 20 in communication with the air replenishing chamber 12 can be set as needed. For example, there are multiple gas-powder separators 20 in communication with the air extraction chamber 11, and they are evenly arranged in the air extraction chamber 11, and there are multiple gas-powder separators 20 in communication with the air replenishing chamber 12, and they are evenly arranged in the air replenishing chamber 12.

[0073] See also Figure 1 The machine body 10 is provided with an air suction port 21 connected to the material chamber 13 . The air suction pipe assembly 50 is connected to the air suction port 21 and is used to output the air entering the air suction chamber 11 to form a negative pressure environment inside the machine body 10 .

[0074] Specifically, the air extraction pipeline assembly 50 includes an air extraction pipe 51 and an air extraction valve 52. The air extraction pipe 51 is connected to and communicates with the air extraction port 21, and the air extraction pipe 51 is communicated with the air extraction pump. The air extraction valve 52 is arranged on the air extraction pipe 51 and is used to open and close the air extraction pipe 51. The air extraction pipe 51 and the machine body 10 can be integrally arranged, or connected by a fixed connection method such as welding.

[0075] When the air extraction valve 52 is opened and the air extraction pump is working, the airflow in the air replenishing chamber 12 enters the material chamber 13 through the interior of the air-powder separation component 20 connected to the air replenishing chamber 12, and follows the airflow in the material chamber 13 to be discharged to the outside through the interior of the air-powder separation component 20 connected to the air extraction chamber 11, the air guide 90, the air extraction chamber 11 and the air extraction pipe 51 in sequence, so as to form a negative pressure environment in the air replenishing chamber 12, the material chamber 13 and the air extraction chamber 11. The air extraction valve 52 is closed to ensure that the outside air does not flow into the air extraction chamber 11, the air replenishing chamber 12 and the material chamber 13, thereby ensuring a negative pressure environment.

[0076] A feed port 22 communicating with the material chamber 13 is provided on the machine body 10 . The feed pipe assembly 70 is connected to the feed port 22 and is used to input powder into the material chamber 13 .

[0077] Specifically, the feed port 22 is provided on the side wall of the machine body 10, and the feed pipe assembly 70 includes a feed pipe 71 and a feed valve 72. The feed pipe 71 is connected to and communicates with the feed port 22, and the feed valve 72 is provided on the feed pipe 71 and is used to open and close the feed pipe 71. The feed pipe 71 and the machine body 10 can be provided integrally, or connected by a fixed connection method such as welding.

[0078] When the air extraction valve 52 is opened, the feed valve 72 is also opened, and the powder in the powder source follows the air flow and enters the material chamber 13 through the feed pipe 71. At this time, although the material chamber 13 and the air extraction chamber 11 are in a negative pressure environment, due to the setting of the air-powder separation member 20, the powder is blocked in the material chamber 13 to prevent the powder from following the air flow into the air extraction chamber 11, thereby ensuring that the air extraction pipe 51 is not blocked. When the feed valve 72 is closed, the vacuum feeding device 1 stops feeding, and the air flow exchange between the outside and the material chamber 13 through the feed pipe 71 can be reduced.

[0079] The machine body 10 is provided with an air supply port 19 communicating with the material cavity 13 . The air supply pipeline assembly 60 is connected to the air supply port 19 and is used to supply air into the air supply cavity 12 to form a positive pressure environment inside the machine body 10 .

[0080] As an example, the air exhaust port 21 and the air supply port 19 are both located on the top surface of the body 10 to fully utilize the space of the body 10 above the material chamber 13, and the air exhaust pipe assembly 50 and the air supply pipe assembly 60 and other mechanisms for air exhaust and air supply are installed on the top of the body 10, which is conducive to fully utilizing the space on the top of the body 10 and reducing the volume and occupied space of the vacuum loading device 1.

[0081] Specifically, the air supply pipe assembly 60 includes an air supply pipe 61 and an air supply valve 62. The air supply pipe 61 is connected to and communicates with the air supply port 19. The air supply valve 62 is arranged on the air supply pipe 61 and is used to open and close the air supply pipe 61. The air supply pipe 61 and the body 10 can be integrally arranged or connected by a fixed connection method such as welding.

[0082] When it is necessary to discharge the material, the air supply valve 62 is opened, and the external air flow enters the material chamber 13 through the air supply pipe 61, the air supply chamber 12, the air guide pipe 90, and the air-powder separation component 20 connecting the air supply chamber 12 and the material chamber 13, and adjusts the pressure balance to form a positive pressure environment in the material chamber 13, the air extraction chamber 11 and the air supply chamber 12, thereby ensuring that the powder can fall and discharge normally. The air supply valve 62 is closed, and the vacuum feeding device 1 stops supplying air.

[0083] In this embodiment, since the gas-powder separation component 20 connects the material chamber 13 and the air supply chamber 12, when the air supply valve 62 is opened, the powder in the material chamber 13 can be prevented from overflowing to the outside through the air supply chamber 12 and the air supply pipe 61 and polluting the external environment, and the risk of clogging the air supply pipe 61 can be reduced.

[0084] The machine body 10 is provided with a discharge port 23 communicating with the material cavity 13 . The discharge pipe assembly 80 is connected to the discharge port 23 and is used for discharging the powder in the material cavity 13 to the outside.

[0085] Specifically, the discharge port 23 is disposed on the bottom surface of the machine body 10 .

[0086] The discharge pipe assembly 80 includes a discharge pipe 81 and a discharge valve 82. The discharge pipe 81 is connected to and communicates with the discharge port 23. The discharge valve 82 is arranged on the discharge pipe 81 and is used to open and close the discharge pipe 81. The discharge pipe 81 and the machine body 10 can be integrally arranged or connected by a fixed connection method such as welding. When the discharge valve 82 is opened, the powder is output from the discharge pipe 81 to the pulping device 2 to facilitate the preparation of the pulp. When the discharge valve 82 is closed, the vacuum feeding device 1 stops discharging.

[0087] Please refer again Figures 1 to 4 The back-blowing air source 30 is commonly known as an air bag. The back-blowing air source 30 is disposed on the machine body 10, for example, outside the machine body 10, to facilitate the installation of the back-blowing air source 30. The back-blowing air source 30 is used to provide a back-blowing airflow for the air extraction chamber 11 and the air replenishment chamber 12, and the back-blowing airflow is used to blow off the powder on the air-powder separation member 20. The back-blowing air source 30 stores compressed air for back-blowing.

[0088] When a large amount of powder is attached to the air-powder separator 20 connecting the vacuum chamber 11 and the material chamber 13, and the air-powder separator 20 connecting the air-replenishing chamber 12 and the material chamber 13, which affects the airflow, it is necessary to provide a back-blowing airflow to the vacuum chamber 11 and the air-replenishing chamber 12 through the back-blowing air source 30 to blow the powder on the air-powder separator 20 connecting the vacuum chamber 11 and the material chamber 13, and the air-powder separator 20 connecting the air-replenishing chamber 12 and the material chamber 13 into the material chamber 13.

[0089] Among them, since the vacuum chamber 11 and the air replenishing chamber 12 are independently arranged, the back-blowing air source 30 can provide back-blowing airflow to the vacuum chamber 11 and the air replenishing chamber 12 separately and independently. When the back-blowing air source 30 provides back-blowing airflow to one of the vacuum chamber 11 and the air replenishing chamber 12, the back-blowing airflow quickly diffuses in the relatively narrow vacuum chamber 11 and blows toward the gas-powder separation component 20 while maintaining a relatively high pressure, and the back-blowing effect is good. Compared with the existing vacuum chamber 11 and the air replenishing chamber 12 using different back-blowing air sources 30, the vacuum feeding device 1 has fewer parts and a simpler structure, and the volume of the vacuum feeding device 1 is reduced, the space occupied is small, and the manufacturing cost is low.

[0090] For example, in the present application, the back-blowing gas source 30 is disposed outside the machine body 10 and located on the top of the machine body 10 as an example, which can reduce the waste of the top space of the machine body 10.

[0091] In some optional embodiments of the present application, all the gas-powder separators 20 are at least two groups, the interior of at least one group of gas-powder separators 20 is connected to the material chamber 13 and the air extraction chamber 11, and the interior of at least one group of gas-powder separators 20 is connected to the material chamber 13 and the air replenishment chamber 12; there are at least two groups of back-blowing pipe assemblies 40, and the number of groups of the back-blowing pipe assemblies 40 corresponds to the number of groups of the gas-powder separators 20. The back-blowing pipe assemblies 40 are used to blow the back-blowing airflow provided by the back-blowing air source 30 to the corresponding group of gas-powder separators 20. During back-blowing, the back-blowing airflow is blown to the corresponding group of gas-powder separators 20 through the back-blowing pipe assemblies 40, and the back-blowing effect is good, which is conducive to ensuring the separation function of the gas-powder separators 20.

[0092] Further, in some optional embodiments of the present application, the back-blowing pipeline assembly 40 includes a back-blowing main pipe 41, a back-blowing valve 42 and a plurality of back-blowing branches 43, the back-blowing valve 42 is arranged on the back-blowing main pipe 41, and is used to open and close the back-blowing main pipe 41, one end of the back-blowing main pipe 41 is connected to the back-blowing gas source 30, all the back-blowing branches 43 are arranged side by side at the other end of the back-blowing main pipe 41 along the extension direction of the back-blowing main pipe 41, and all the back-blowing branches 43 correspond to all the gas-powder separators 20 of the corresponding group, and the outlets of the back-blowing branches 43 face the corresponding gas-powder separators 20. During back-blowing, the back-blowing gas flow is diverted to each back-blowing branch pipe 43 connected to the back-blowing main pipe 41 through the back-blowing main pipe 41, and is blown to the gas-powder separators 20 corresponding to each back-blowing branch pipe 43 from the gas outlets of each back-blowing branch pipe 43 one by one, and the back-blowing effect is good, ensuring the separation function of the gas-powder separator 20.

[0093] As an example, the air supply valve 62 and the air extraction valve 52 are both ball valves, the feed valve 72 and the discharge valve 82 are both butterfly valves, and the blowback valve 42 is a gate valve. Of course, the air supply valve 62, the air extraction valve 52, the feed valve 72, the discharge valve 82 and the blowback valve 42 can also be other valves, which are not limited here.

[0094] In some optional embodiments of the present application, the air supply valve 62, the air extraction valve 52, the feed valve 72, the discharge valve 82 and the back-blowing valve 42 are all electrically controlled valves, and the vacuum feeding device 1 also includes a controller, which is electrically connected to the air supply valve 62, the air extraction valve 52, the feed valve 72, the discharge valve 82 and the back-blowing valve 42, and is used to control the opening and closing of the air supply valve 62, the air extraction valve 52, the feed valve 72, the discharge valve 82 and the back-blowing valve 42.

[0095] Please refer again Figure 1 , below, the specific working process of the vacuum feeding device 1 is described in detail.

[0096] The air supply valve 62, the discharge valve 82 and the back-blowing valve 42 are closed, and the air extraction valve 52 and the feed valve 72 are opened to form a negative pressure environment in the material chamber 13, and the powder follows the air flow into the feed chamber 13. After the feeding is completed, the air extraction valve 52 and the feed valve 72 are closed, the air supply valve 62 is opened, and the outside air enters the air supply chamber 12, the material chamber 13 and the air extraction chamber 11, and a positive pressure environment is formed in the machine body 10. Then, the discharge valve 82 is opened to complete the unloading. When there is a lot of powder attached to the air-powder separator 20 connected to the material chamber 13 and the air extraction chamber 11, and the air-powder separator 20 connected to the material chamber 13 and the air supply chamber 12, the back-blowing valve 42 is opened, so that the back-blowing airflow can be blown to the air-powder separator 20 through the back-blowing main pipe 41 and the back-blowing branch pipe 43, so as to blow the powder on the air-powder separator 20 into the material chamber 13. It is worth mentioning that, in order to ensure sufficient pressure of the back-blowing air flow, during back-blowing, the air supply valve 62, the discharge valve 82, the air extraction valve 52 and the feed valve 72 are all closed.

[0097] The above-mentioned vacuum feeding device 1 and pulping system, by arranging the vacuum chamber 11 and the air replenishing chamber 12 both above the material chamber 13, and the vacuum chamber 11 and the air replenishing chamber 12 are both arranged horizontally, the present application can make full use of the space of the machine body 10 above the material chamber 13 for vacuuming and replenishing air, thereby helping to reduce the volume and occupied space of the vacuum feeding device 1.

[0098] The present application also provides a pulping system, which includes a pulping device 2 and a vacuum feeding device 1 as described in any one of the above embodiments, wherein the vacuum feeding device 1 is used to transport powder to the pulping device 2 .

[0099] Among them, the pulping system provided in the present application has the effects brought by any of the above-mentioned embodiments, so it will not be repeated here.

[0100] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0101] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A vacuum feeding device, characterized in that: The vacuum feeding device comprises: A machine body (10), wherein the machine body (10) has a material chamber (13), an air extraction chamber (11) and an air replenishing chamber (12), the air extraction chamber (11) and the air replenishing chamber (12) are both located above the material chamber (13) and are both connected to the material chamber (13), and the air extraction chamber (11) and the air replenishing chamber (12) are both arranged horizontally, and the machine body (10) is provided with a material feed port (22) connected to the material chamber (13); A feed pipe assembly (70) is connected to the feed port (22) and is used to input powder into the feed cavity (13).

2. The vacuum feeding device according to claim 1, characterized in that: The machine body (10) comprises a shell (24), a first partition plate (17) and a second partition plate (18); the first partition plate (17) is located in the shell (24) and divides the internal space of the shell (24) into the material chamber (13) and the air passage chamber (14) located above the material chamber (13); the second partition plate (18) is located in the air passage chamber (14), and the second partition plate (18) and the first partition plate (17) are arranged to intersect and divide the air passage chamber (14) into the air extraction chamber (11) and the air supply chamber (12).

3. The vacuum feeding device according to claim 2, characterized in that: The second partition plate (18) is eccentrically arranged in the air passage cavity (14) to separate the air extraction cavity (11) and the air supply cavity (12) which are arranged side by side in the horizontal direction.

4. The vacuum feeding device according to claim 2, characterized in that: The second partition plate (18) is an annular structure, and the second partition plate (18) divides the air passage cavity (14) into the air extraction cavity (11) and the air replenishment cavity (12), and one of the air extraction cavity (11) and the air replenishment cavity (12) is arranged around the periphery of the other of the air extraction cavity (11) and the air replenishment cavity (12).

5. The vacuum feeding device according to claim 2, characterized in that: There are a plurality of second partition plates (18), all of which are spaced apart in the air passage cavity (14), and each of which separates the air passage cavity (14) into one of the air extraction cavity (11) and the air supply cavity (12). The spaces of the air passage cavity (14) other than all of the air extraction cavity (11) and the air supply cavity (12) are connected to form the other of the air extraction cavity (11) and the air supply cavity (12).

6. The vacuum feeding device according to claim 1, characterized in that: The cross-sectional area of ​​the air extraction cavity (11) is greater than the cross-sectional area of ​​the air replenishment cavity (12).

7. The vacuum feeding device according to claim 1, characterized in that: The machine body (10) is provided with an air suction port (21) which is in communication with the material chamber (13); the vacuum feeding device further comprises an air suction pipeline assembly (50); the air suction pipeline assembly (50) is connected to the air suction port (21) and is used to output the air entering the air suction chamber (11); The machine body (10) is provided with an air replenishment port (19) which is in communication with the material chamber (13). The vacuum feeding device further comprises an air replenishment pipeline assembly (60). The air replenishment pipeline assembly (60) is connected to the air replenishment port (19) and is used to replenish air into the air replenishment chamber (12).

8. The vacuum feeding device according to claim 7, characterized in that: The air extraction port (21) and the air supply port (19) are both located on the top surface of the machine body (10).

9. The vacuum feeding device according to claim 1, characterized in that: The vacuum feeding device further comprises a gas-powder separator (20), wherein the gas-powder separator (20) is arranged in the machine body (10), and the interior of the gas-powder separator (20) is connected between the material chamber (13) and the air extraction chamber (11), and / or the interior of the gas-powder separator (20) is connected between the material chamber (13) and the air replenishing chamber (12).

10. The vacuum feeding device according to claim 9, characterized in that: There are at least two gas-powder separation components (20), the interior of at least one gas-powder separation component (20) being in communication with the material chamber (13) and the air extraction chamber (11), and the interior of at least one gas-powder separation component (20) being in communication with the material chamber (13) and the air replenishment chamber (12).

11. The vacuum feeding device according to claim 10, characterized in that: The vacuum feeding device further comprises a back-blowing air source (30), which is arranged on the machine body (10) and is used to provide a back-blowing air flow for the air extraction chamber (11) and the air replenishing chamber (12), wherein the back-blowing air flow is used to blow off the powder on the air-powder separation element (20).

12. The vacuum feeding device according to claim 11, characterized in that: All of the gas-powder separation components (20) are in at least two groups, the interior of at least one group of the gas-powder separation components (20) is in communication with the material chamber (13) and the air extraction chamber (11), and the interior of at least one group of the gas-powder separation components (20) is in communication with the material chamber (13) and the air supply chamber (12); The vacuum feeding device also includes a back-blowing pipe assembly (40), and the back-blowing pipe assembly (40) is composed of at least two groups. The number of groups of the back-blowing pipe assembly (40) corresponds one-to-one to the number of groups of the gas-powder separators (20). The back-blowing pipe assembly (40) is used to blow the back-blowing air flow provided by the back-blowing air source (30) toward the gas-powder separators (20) of the corresponding group.

13. The vacuum feeding device according to claim 12, characterized in that: The back-blowing pipe assembly (40) comprises a back-blowing main pipe (41), a back-blowing valve (42) and a plurality of back-blowing branch pipes (43). The back-blowing valve (42) is arranged on the back-blowing main pipe (41) and is used to open and close the back-blowing main pipe (41). One end of the back-blowing main pipe (41) is connected to the back-blowing gas source (30). All the back-blowing branch pipes (43) are arranged side by side at the other end of the back-blowing main pipe (41) along the extension direction of the back-blowing main pipe (41). All the back-blowing branch pipes (43) correspond to all the gas-powder separators (20) of the corresponding group one by one. The outlets of the back-blowing branch pipes (43) face the corresponding gas-powder separators (20).

14. The vacuum feeding device according to claim 1, characterized in that: The machine body (10) is provided with a discharge port (23) which is in communication with the material chamber (13); the vacuum feeding device further comprises a discharge pipe assembly (80); the discharge pipe assembly (80) is connected to the discharge port (23) and is used to discharge the powder in the material chamber (13) to the outside.

15. A pulping system, characterized in that: include: a pulping device (2); and The vacuum feeding device as described in any one of claims 1 to 14 above, is used to transport powder to the pulping device (2).

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