Vacuum feeding device and rotary vacuum dryer

Abstract

The utility model belongs to the technical field of drying machines, and particularly relates to a vacuum feeding device and a rotary vacuum drying machine, the vacuum feeding device comprises a hollow pipe, one end of the hollow pipe penetrates through the outer wall of a stock bin and is located in the stock bin; one end of the suction pipe is connected with the hollow pipe, and the other end is connected with a vacuum pump; the feeding pipe is inserted into the outer wall of the stock bin and is used for connecting the stock bin with powder; the vacuum pump machine is suitable for extracting air in the stock bin through the suction pipe and the hollow pipe when the vacuum pump machine is started so that negative pressure can be generated in the stock bin, and then powder can penetrate through the feeding pipe to enter the stock bin under the negative pressure. The feeding pipe is inserted into the hollow pipe, the vacuum pump is used for vacuumizing the hollow pipe and the stock bin to generate negative pressure, at the moment, the negative pressure generated in the feeding pipe sucks powder connected with the feeding pipe into the stock bin, a feeding port of the stock bin does not need to be manually opened for feeding, and manpower is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dryers, and particularly relates to a vacuum feeding device and a rotary vacuum dryer. Background Art

[0002] The traditional rotary vacuum dryer is fed by humans, and the feed port needs to be opened and the material is poured into the barrel manually. This feeding method cannot achieve fully automatic and unmanned operation. After improvement, a vacuum feeding device is used, but it is necessary to open a feed port and a vacuum suction port on the feed barrel, which makes the device structure complex and occupies a large area.

[0003] Therefore, a vacuum feeding device and a rotary vacuum dryer are designed to solve the technical problem in the prior art that the vacuum feeding device has a complex structure and occupies a large area.

[0004] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Utility Model Content

[0005] The embodiments of the present disclosure provide at least a vacuum feeding device and a rotary vacuum dryer.

[0006] In a first aspect, an embodiment of the present disclosure provides a vacuum feeding device, comprising:

[0007] A hollow tube, one end of which penetrates the outer wall of the silo and is located inside the silo;

[0008] A suction pipe, one end of which is connected to the hollow pipe and the other end of which is connected to a vacuum pump; and

[0009] The feed pipe is plugged into the outer wall of the silo to connect the silo and the powder;

[0010] The vacuum pump is suitable for extracting air from the silo through the suction pipe and the hollow tube when started, so as to generate negative pressure inside the silo, thereby allowing the powder to pass through the feed pipe and enter the silo under the negative pressure.

[0011] In an optional embodiment, a filter element is sleeved on one end of the hollow tube located inside the silo;

[0012] The filter element is suitable for intercepting the powder in the silo when the vacuum pump is started to extract the air inside the silo through the hollow tube.

[0013] In an optional embodiment, the feed tube is located inside the hollow tube.

[0014] In an optional embodiment, the discharge end of the feed pipe is adapted to pass through the outer wall of the hollow tube and be located inside the silo; and

[0015] A feed valve is provided at the feed end of the feed pipe.

[0016] In a second aspect, the present disclosure further provides a rotary vacuum dryer, comprising:

[0017] A silo, wherein a bearing seat is sleeved on the outer wall of the silo;

[0018] A hollow tube passes through the bearing housing to connect to the silo; and

[0019] A vacuum feed arrangement as described above.

[0020] In an optional embodiment, the vacuum feeding device includes:

[0021] A hollow tube, one end of which penetrates the outer wall of the silo and is located inside the silo;

[0022] A suction pipe, one end of which is connected to the hollow pipe and the other end of which is connected to a vacuum pump; and

[0023] The feed pipe is plugged into the outer wall of the silo to connect the silo and the powder;

[0024] The vacuum pump is suitable for extracting air from the silo through the suction pipe and the hollow tube when started, so as to generate negative pressure inside the silo, thereby allowing the powder to pass through the feed pipe and enter the silo under the negative pressure.

[0025] In an optional embodiment, a filter element is sleeved on one end of the hollow tube located inside the silo;

[0026] The filter element is suitable for intercepting the powder in the silo when the vacuum pump is started to extract the air inside the silo through the hollow tube.

[0027] In an optional embodiment, the feed pipe is located inside the hollow tube; wherein

[0028] The diameter of the feed pipe is smaller than the diameter of the hollow pipe.

[0029] In an optional embodiment, the discharge end of the feed pipe is adapted to pass through the outer wall of the hollow tube and be located inside the silo; and

[0030] A feed valve is provided at the feed end of the feed pipe.

[0031] In an optional embodiment, a flange is provided on the bearing seat;

[0032] A sealing joint is provided on one side of the flange; wherein

[0033] The sealing joint is suitable for keeping the hollow tube passing through the flange and the bearing seat and the bearing seat stationary.

[0034] The beneficial effect of the present invention is that the device inserts the feed pipe into the inside of the hollow pipe, and uses a vacuum pump to vacuum the hollow pipe and the silo to generate negative pressure. At this time, the negative pressure generated in the feed pipe will suck the powder connected to the feed pipe into the silo, and there is no need to manually open the feed port of the silo to feed the material, which saves manpower.

[0035] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The objectives and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited herein and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 This is a block diagram of the overall principles of the embodiments of the present disclosure.

[0039] In the picture:

[0040] 1. Vacuum pump; 2. Bearing seat; 3. Flange; 4. Sealing joint; 5. Feed valve; 6. Filter element; 7. Suction pipe; 8. Feed pipe; 80. Discharge end; 81. Feed end; 9. Hollow tube;

[0041] F1, powder flow direction;

[0042] F2. Air flow direction. DETAILED DESCRIPTION

[0043] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0044] In this document, when it is mentioned that a first component is located on a second component, this may mean that the first component may be directly formed on the second component, or that a third component may be interposed between the first component and the second component. In addition, in the drawings, the thickness of components may be exaggerated or reduced in order to effectively describe technical content.

[0045] As used herein, when an element or layer is referred to as being "located on," "engaged to," "connected to," "attached to," or "coupled to" another element or layer, it may be directly located on, engaged, connected, attached to, or coupled to the other element or layer, or there may be intervening elements or layers. Conversely, when an element is referred to as being "directly on," "directly engaged to," "directly connected to," "directly attached to," or "directly coupled to" another element or layer, there may be no intervening elements or layers. Other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between" versus "directly between," "adjacent" versus "directly adjacent," etc.). As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0046] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." when following a list of elements modify the entire list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0047] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limiting. As used herein, the singular articles "a", "an" and "the" may also be intended to include plural forms, unless otherwise clearly indicated herein. The terms "comprise", "include" and "have" are inclusive and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the particular order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0048] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Thus, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Instead, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0049] Research has found that traditional rotary vacuum dryers are fed by people, and the feed port needs to be opened and the material needs to be poured into the barrel manually. This feeding method cannot achieve fully automatic and unmanned operation.

[0050] Based on the above research, the embodiments of the present disclosure provide a vacuum feeding device and a rotary vacuum dryer. By inserting the feed pipe into the inside of the hollow tube and using a vacuum pump, the hollow tube and the silo are evacuated to generate negative pressure. At this time, the negative pressure generated in the feed pipe will suck the powder connected to the feed pipe into the silo, eliminating the need to manually open the feed port of the silo for feeding, thus saving manpower.

[0051] The defects in the above solutions are the results obtained by the utility model inventor after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present disclosure in this article should be the contributions made by the utility model inventor to the present disclosure during the disclosure process.

[0052] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0053] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0054] In some embodiments, as Figure 1As shown, before starting the feed, the feed end of the feed pipe 8 is connected to the external powder source, and the feed valve 5 is opened synchronously, the vacuum pump 1 is started, and the air in the silo 10 is extracted through the suction pipe 7 and the hollow tube 9, so that the air flows along the direction shown by F2, forming a negative pressure environment. At this time, the powder is sucked into the silo 10 through the feed pipe 8 under the action of the negative pressure, and the powder flows along the direction shown by F1. When the hollow tube 9 extracts the air inside the silo 1, the filter element 6 is used to prevent the powder from being extracted by the vacuum pump, while ensuring air circulation. In the rotary vacuum dryer, the silo (10) can rotate around the bearing seat 2 to cooperate with the drying operation. The bearing seat 2 and the flange 3 provide support and sealing, and the sealing joint 4 ensures the static and sealing of the hollow tube 9.

[0055] Through the above structure, automatic suction of powder is achieved, and there is no need for manual feeding, which reduces manpower loss. Automatic feeding speeds up the feeding speed and improves production efficiency. Since the feeding process is carried out in a closed environment, dust pollution is reduced. Through flanges, sealing joints and other components, the sealing performance of the device is enhanced, ensuring the stability of the negative pressure environment.

[0056] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0057] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used herein unless expressly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0058] Spatially relative terms, such as "inside," "outside," "below," "beneath," "down," "above," "on," etc., may be used herein to describe the relationship of one element or feature to another element or feature as illustrated in the figures. In addition to the orientations depicted in the figures, spatially relative terms may be intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as being "below" or "below" other elements or features will be oriented to be "above" the other elements or features. Thus, the example term "below" may encompass both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0059] In the above discussion, unless otherwise indicated, the terms "about," "approximately," "substantially," etc., when used to describe a numerical value, mean a variation of + / - 10% of the value.

[0060] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A vacuum feeding device, characterized in that: include: A hollow tube (9), one end of which penetrates the outer wall of the silo (10) and is located inside the silo (10); A suction pipe (7), one end of which is connected to the hollow pipe (9) and the other end of which is connected to a vacuum pump (1); and A feed pipe (8) is inserted into the outer wall of the silo (10) and is used to connect the silo (10) and the powder; in The vacuum pump (1) is suitable for extracting air from the silo (10) through the suction pipe (7) and the hollow pipe (9) when started, so that negative pressure is generated inside the silo (10), thereby allowing the powder to pass through the feed pipe (8) and enter the silo (10) under the negative pressure.

2. The vacuum feeding device according to claim 1, characterized in that include: The hollow tube (9) is sleeved with a filter element (6) at one end located inside the silo (10); wherein The filter element (6) is suitable for intercepting the powder in the silo (10) when the vacuum pump (1) is started to extract the air inside the silo (10) through the hollow tube (9).

3. The vacuum feeding device according to claim 2, characterized in that include: The feed pipe (8) is located inside the hollow tube (9).

4. The vacuum feeding device according to claim 1, characterized in that include: The discharge end (80) of the feed pipe (8) is adapted to pass through the outer wall of the hollow tube (9) and be located inside the silo (10); as well as A feed valve (5) is provided at the feed end (81) of the feed pipe (8).

5. A rotary vacuum dryer, characterized in that: include: A silo (10), wherein a bearing seat (2) is sleeved on the outer wall of the silo (10); in The hollow tube (9) passes through the bearing seat (2) to connect with the silo (10); and The vacuum feeding device according to any one of claims 1 to 4.

6. The rotary vacuum dryer according to claim 5, characterized in that The vacuum feeding device comprises: A hollow tube (9), one end of which penetrates the outer wall of the silo (10) and is located inside the silo (10); A suction pipe (7), one end of which is connected to the hollow pipe (9) and the other end of which is connected to a vacuum pump (1); and The feed pipe (8) is inserted into the outer wall of the silo (10) and is used to connect the silo (10) and the powder; wherein The vacuum pump (1) is suitable for extracting air from the silo (10) through the suction pipe (7) and the hollow pipe (9) when started, so that negative pressure is generated inside the silo (10), thereby allowing the powder to pass through the feed pipe (8) and enter the silo (10) under the negative pressure.

7. The rotary vacuum dryer according to claim 6, wherein The hollow tube (9) is sleeved with a filter element (6) at one end located inside the silo (10); wherein The filter element (6) is suitable for intercepting the powder in the silo (10) when the vacuum pump (1) is started to extract the air inside the silo (10) through the hollow tube (9).

8. The rotary vacuum dryer according to claim 7, wherein The feed pipe (8) is located inside the hollow tube (9); wherein The diameter of the feed pipe (8) is smaller than the diameter of the hollow tube (9).

9. The rotary vacuum dryer according to claim 8, characterized in that The discharge end (80) of the feed pipe (8) is adapted to pass through the outer wall of the hollow pipe (9) and be located inside the silo (10); and A feed valve (5) is provided at the feed end (81) of the feed pipe (8).

10. The rotary vacuum dryer according to claim 9, wherein The bearing seat (2) is provided with a flange (3); A sealing joint (4) is provided on one side of the flange (3); wherein The sealing joint (4) is suitable for keeping the hollow tube (9) passing through the flange (3) and the bearing seat (2) and the bearing seat (2) stationary.

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