Powder hopper

Abstract

The utility model relates to a powder hopper, including hopper body, the section of discharging and non -woven bag, the hopper body top has a feeding opening, the section of discharging is installed below the hopper body, and is linked with the hopper body, non -woven bag sets up outside the section of discharging and is connected with the section of discharging through the connecting pipe, and the inside of non -woven bag forms a pressure relief buffer dust collection cavity that links with the section of discharging, the powder hopper of the utility model when using, the powder carries a large amount of air when discharging in the hopper body, and forms the positive pressure environment at the section of discharging below the hopper body, and the non -woven bag that sets up at the section of discharging, the internal cavity of non -woven bag, provides the pressure release passage for the section of discharging, and because the air permeability of non -woven bag itself, allows gas to discharge in the pressure relief process, and effectively captures the dust that escapes and concentrates collection, greatly reduces dust leakage, improves the air quality of working environment, guarantees personal health safety.

Description

Technical Field

[0001] This utility model relates to the field of hopper technology, and in particular to a powder hopper. Background Technology

[0002] When powder is fed into a hopper, the hopper and the powder container must be sealed to prevent powder leakage or the introduction of external impurities. As the powder falls at high speed through the top opening of the hopper, it carries a large amount of air into the hopper, creating a positive pressure environment in the lower space. This pressure exerts a force on the fine particles, causing the dust to disperse in all directions. Due to the airtightness of the lower space, most of the dust rises and diffuses towards the top opening of the hopper, eventually escaping to the outside and affecting the surrounding environment and human health.

[0003] Therefore, this utility model proposes a powder feeding hopper to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a powder feeding hopper to solve the problem of dust dispersion, which affects the surrounding environment and human health.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a powder feeding hopper, the innovation of which is: including The funnel body has a feeding port at its top; The material feeding section is installed below the funnel body and is connected to the funnel body; The non-woven bag is located outside the feeding section and is connected to the feeding section through a connecting pipe. Inside the non-woven bag, a pressure relief buffer dust collection chamber is formed that is connected to the feeding section.

[0006] Furthermore, the side wall of the feeding section has an opening that matches the connecting pipe. The connecting pipe is connected to the opening of the feeding section, and the bag opening of the non-woven bag is fitted onto the outside of the connecting pipe and is detachably connected to the connecting pipe by a ring fastener.

[0007] Furthermore, the ring-shaped fastener is a cable tie or a clamp.

[0008] Furthermore, a tubular filter screen is provided on the side of the connecting pipe away from the feeding section, and the bag body of the non-woven bag is wrapped around the outside of the tubular filter screen.

[0009] Furthermore, the tubular filter screen is detachably and movably sleeved on the outside of the connecting pipe.

[0010] Furthermore, the sidewall of the connecting pipe extends outward to form an annular limiting protrusion. A tubular filter screen is disposed on the side of the annular limiting protrusion on the connecting pipe away from the feeding section. One end of the tubular filter screen abuts against the end face of the annular limiting protrusion, and the other end abuts against the inner wall of the bottom of the nonwoven bag. An annular fastener is disposed on the side of the annular limiting protrusion on the connecting pipe near the feeding section.

[0011] Furthermore, the end face of the annular limiting protrusion near the feeding section has an arc-shaped transition with the side wall, and the edge of the tubular filter screen away from the annular limiting protrusion bends outward to form an arc-shaped protrusion.

[0012] Furthermore, a maintenance section connecting the funnel body and the feeding section is installed between the funnel body and the feeding section, and the maintenance section has a middle maintenance port.

[0013] The advantages of this utility model are: When the powder feeding hopper of this utility model is in use, the powder carries a large amount of air as it is fed into the hopper body, creating a positive pressure environment at the feeding section below the hopper body. The non-woven bag set at the feeding section has an internal cavity that provides a pressure relief channel for the feeding section. At the same time, due to the air permeability of the non-woven bag itself, it allows gas to escape during the pressure relief process and effectively captures and collects the scattered dust, greatly reducing dust leakage, improving the air quality of the working environment, and ensuring personal health and safety.

[0014] The nonwoven bag of this invention is detachably connected to the connecting pipe by a ring fastener, which facilitates the installation and disassembly of the nonwoven bag and the recycling of the dust collected by the nonwoven bag.

[0015] The ring-shaped fastener of this utility model uses binding straps or clamps, which are convenient for installation and disassembly.

[0016] This invention provides support for the nonwoven bag by setting a tubular filter screen on the side of the connecting pipe away from the feeding section, thus preventing the nonwoven bag from sagging, deforming, and blocking the opening of the connecting pipe, which would affect pressure transmission and dust dispersion.

[0017] The tubular filter screen of this utility model is detachably and movablely sleeved on the outside of the connecting pipe, which facilitates the disassembly and cleaning of the tubular filter screen.

[0018] This invention features an annular limiting protrusion on the connecting pipe. This protrusion serves two purposes: firstly, it works in conjunction with the non-woven bag to limit the position of the tubular filter; secondly, it limits the position of the annular fastener, preventing it from loosening and detaching from the connecting pipe; and thirdly, it blocks dust escaping through the tubular filter, keeping the dust clean at the opening of the non-woven bag, facilitating the removal of the bag and collection of the escaped dust.

[0019] The arc-shaped transition design of the annular limiting protrusion and the arc-shaped protrusion design of the tubular filter screen in this invention can effectively reduce the wear caused by the annular limiting protrusion and the tubular filter screen on the non-woven bag and extend the service life of the non-woven bag.

[0020] This invention, by setting up a maintenance section, extends the distance between the feeding section and the funnel body, reducing the probability of dust directly escaping upwards to the top of the funnel body's feeding port, allowing more escaping dust to enter the non-woven bag. On the other hand, the maintenance port in the middle section of the maintenance section facilitates maintenance of the feeding section and the funnel body by operators. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the powder feeding hopper of this utility model.

[0023] Figure 2 This is a schematic diagram showing the connection between the nonwoven bag, connecting tube, and tubular filter screen of this utility model. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0025] Example This embodiment provides a powder feeding hopper, such as Figure 1-2 As shown, it includes a funnel body 1, a feeding section 3, and two non-woven bags 6.

[0026] The funnel body 1 has a feeding port at the top, and the feeding section 3 is installed below the funnel body 1 and connected to the funnel body 1. Two non-woven bags 6 are respectively set at opposite positions on both sides of the feeding section 3. The non-woven bags 6 are connected to the feeding section 3 through connecting pipes 4, and a pressure relief buffer dust collection chamber is formed inside the non-woven bags 6 and is connected to the feeding section 3.

[0027] In this embodiment, the side wall of the feeding section 3 has an opening that matches the connecting pipe 4. The connecting pipe 4 is welded to the opening of the feeding section 3. To facilitate the installation and removal of the non-woven bag 6 and the recycling of the dust collected by the non-woven bag 6, the bag opening of the non-woven bag 6 is fitted onto the outside of the connecting pipe 4 and is detachably connected to the connecting pipe 4 by a ring fastener 7. The ring fastener 7 is a binding strap or clamp, which is convenient for installation and removal.

[0028] In this embodiment, in order to prevent the non-woven bag 6 from sagging and deforming and blocking the opening of the connecting pipe 4, thus affecting pressure transmission and dust dispersion, a tubular filter screen 5 is provided on the side of the connecting pipe 4 away from the feeding section 3. The bag body of the non-woven bag 6 is wrapped around the outside of the tubular filter screen 5, and the tubular filter screen 5 supports the bag body of the non-woven bag 6.

[0029] To facilitate disassembly and cleaning of the tubular filter screen 5, the tubular filter screen 5 is detachably and movably sleeved on the outside of the connecting pipe 4. The side wall of the connecting pipe 4 extends outward to form an annular limiting protrusion 401. The tubular filter screen 5 is located on the side of the connecting pipe 4 away from the annular limiting protrusion 401. One end of the tubular filter screen 5 abuts against the end face of the annular limiting protrusion 401, and the other end abuts against the inner wall of the bottom of the nonwoven bag 6. The annular fastener 7 is located on the side of the connecting pipe 4 near the annular limiting protrusion 401 and close to the feeding section 3. The design of the annular limiting protrusion 401 serves two purposes: firstly, it works with the non-woven bag 6 to limit the tubular filter screen 5, preventing it from loosening and moving; secondly, it limits the position of the annular fastener 7, preventing it from loosening and detaching from the connecting pipe 4; and thirdly, it blocks the dust escaping through the tubular filter screen 5, keeping the dust clean at the opening of the non-woven bag 6, making it convenient for operators to remove the non-woven bag 6 and collect the escaped dust.

[0030] In this embodiment, the end face of the annular limiting protrusion 401 near the feeding section 3 has an arc transition with the side wall, and the edge of the tubular filter screen 5 away from the annular limiting protrusion 401 bends outward to form an arc protrusion 501, which can effectively reduce the wear caused by the annular limiting protrusion 401 and the tubular filter screen 5 on the non-woven bag 6 and extend the service life of the non-woven bag 6.

[0031] In this embodiment, a maintenance section 2 is installed between the funnel body 1 and the feeding section 3, connecting the funnel body 1 and the feeding section 3. The maintenance section 2 has a middle maintenance port 201. The design of the maintenance section extends the distance between the feeding section 3 and the funnel body 1, reducing the probability of dust directly escaping upward to the top feeding port of the funnel body 1, allowing more dust to enter the non-woven bag 6. On the other hand, the middle maintenance port 201 on the maintenance section 2 facilitates the operator to maintain the feeding section 3 and the funnel body 1.

[0032] When the powder feeding hopper is in use, the powder carries a large amount of air as it is fed into the hopper body 1, creating a positive pressure environment at the feeding section 3 below the hopper body 1. The non-woven bag 6 located at the feeding section 3 provides a pressure relief channel for the feeding section 3 through its internal cavity. Due to the air permeability of the non-woven bag 6, gas can be discharged during the pressure relief process, and the escaped dust can be effectively captured and collected, greatly reducing dust leakage, improving the air quality of the working environment, and ensuring personal health and safety.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A powder feeding hopper, characterized in that: include The funnel body has a feeding port at its top; The material feeding section is installed below the funnel body and is connected to the funnel body; The non-woven bag is located outside the feeding section and is connected to the feeding section through a connecting pipe. Inside the non-woven bag, a pressure relief buffer dust collection chamber is formed that is connected to the feeding section.

2. The powder feeding hopper according to claim 1, characterized in that: The side wall of the feeding section has an opening that matches the connecting pipe. The connecting pipe is connected to the opening of the feeding section. The opening of the non-woven bag is fitted onto the outside of the connecting pipe and is detachably connected to the connecting pipe by a ring fastener.

3. The powder feeding hopper according to claim 2, characterized in that: The ring-shaped fastener is a cable tie or a clamp.

4. The powder feeding hopper according to claim 2, characterized in that: A tubular filter screen is provided on the side of the connecting pipe away from the feeding section, and the non-woven bag body is wrapped around the outside of the tubular filter screen.

5. The powder feeding hopper according to claim 4, characterized in that: The tubular filter screen is detachably and movablely sleeved on the outside of the connecting pipe.

6. The powder feeding hopper according to claim 5, characterized in that: The sidewall of the connecting pipe extends outward to form an annular limiting protrusion. The tubular filter screen is located on the side of the annular limiting protrusion on the connecting pipe away from the feeding section. One end of the tubular filter screen abuts against the end face of the annular limiting protrusion, and the other end abuts against the inner wall of the bottom of the nonwoven bag. The annular fastener is located on the side of the annular limiting protrusion on the connecting pipe near the feeding section.

7. The powder feeding hopper according to claim 6, characterized in that: The annular limiting protrusion has an arc-shaped transition between its end face near the feeding section and the side wall, and the edge of the tubular filter screen away from the annular limiting protrusion bends outward to form an arc-shaped protrusion.

8. The powder feeding hopper according to claim 1, characterized in that: A maintenance section connecting the funnel body and the feeding section is installed between the funnel body and the feeding section, and the maintenance section has a middle maintenance port.

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