Dust-free and powder-free device
By designing a dust-free powder removal device with a U-shaped tube dustproof bag and compressed air system in the production of gummy candies, the problem of dust flying was solved, dust collection and filter life were extended, safety and environmental protection requirements were met, and production efficiency was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ALAND NUTRITION TAIZHOU CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-06-19
AI Technical Summary
Existing desiccant production equipment generates dust, leading to raw material loss, environmental pollution, and safety hazards. Furthermore, the existing equipment operates frequently, is inefficient, and its filter cartridges are prone to clogging. It cannot simultaneously use a vibrating screen and a backflushing air bag, and the exhaust vents pollute in violation of safety and environmental protection standards.
Design a dust-free powder removal device that uses a U-shaped pipe to connect to a dustproof bag to collect dust from the exhaust vent, connects to a compressed air system for continuous air supply, combines a vibrating screen and a back-blowing chamber to improve filter life, and collects materials through a sealed bag.
It achieves effective dust collection and reduces workshop pollution, extends filter life, simplifies operation procedures, meets safety and environmental protection standards, and improves production efficiency.
Smart Images

Figure CN224370979U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of health product soft candy production technology, and in particular to a dust-free powder removal device. Background Technology
[0002] In the production of gummy candies, the process of demolding the starch molds often results in dust emissions, leading to raw material loss, environmental pollution, and potential safety hazards such as dust explosions. Currently, commercial gummy candy production equipment integrates dust removal and sieving functions. However, existing equipment relies on manual cleaning with backflushing air bags / guns, which is frequent and inefficient. Furthermore, the vibrating screen and backflushing air bags / guns cannot be used simultaneously, causing frequent filter clogging and prolonged gummy candy desiccation time, leading to stickiness. While the pre-installed exhaust vents can discharge collected dust outdoors, this causes pollution and violates GMP cleanroom standards, failing to meet the safety and environmental protection standards of most laboratories and factories. Utility Model Content
[0003] This utility model solves the problems in related technologies and proposes a dust-free dust removal device. The exhaust port is connected to a U-shaped pipe and an external dustproof bag, which can collect the dust from the exhaust port, making it easy to clean regularly and reducing pollution to the workshop. The back-blowing chamber is connected to the external compressed air system, which can continuously supply air and remove dust when the vibrating screen is working, thereby improving the life of the filter element.
[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a dust-free de-powdering device, including a dust removal fan, a back-blowing chamber, and a vibrating screen, wherein the dust removal fan is placed inside a fan sealing cover and the exhaust port of the fan sealing cover is connected to a U-shaped pipe, and a dustproof bag is connected to the U-shaped pipe; the back-blowing chamber is connected to a compressed air system, and the vibrating screen is connected to the bottom of the back-blowing chamber.
[0005] As a preferred embodiment, a partition is provided above the fan sealing cover, the U-shaped tube passes through the partition, and the dust bag is located above the partition.
[0006] As a preferred embodiment, one side of the backflush chamber is inclined and has a viewing window, which is provided with an observation port and a glove opening.
[0007] As a preferred embodiment, a backflush air gun is provided in the backflush chamber. The backflush air gun is fixed inside the viewing window and connected to a backflush air manifold via a hose. The backflush air manifold is connected to the filter chamber. The compressed air system is connected to both the backflush air gun and the backflush air manifold.
[0008] As a preferred embodiment, a filter element is provided in the filter chamber, one end of which is detachably installed in the filter chamber and the other end extends into the backflush chamber. The backflush air manifold is used to backflush and clean the filter element.
[0009] As a preferred embodiment, the vibrating screen is driven by a vibrating screen motor, and both the undersize outlet and the oversize outlet of the vibrating screen are connected to sealed bags.
[0010] As a preferred embodiment, the backflush chamber is connected to a compressed air system via a pipeline, and a differential pressure sensor and a pressure reducing valve are installed on the pipeline.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The exhaust port of this utility model is connected to a U-shaped pipe and an external dustproof bag, which can collect the dust at the exhaust port, making it easy to clean regularly and reducing pollution to the workshop; the back-blowing chamber is connected to the external compressed air system, which can continuously supply air and remove dust when the vibrating screen is working, thereby improving the life of the filter element; both the undersize outlet and the oversize outlet of the vibrating screen are connected to sealed bags, so the screened material is collected by the sealed bag at the oversize outlet, and the starch after de-powdering is collected by the sealed bag at the undersize outlet, which can be directly reused. Attached Figure Description
[0012] Figure 1 This is the front view of this utility model;
[0013] Figure 2 This is a side view of the present invention.
[0014] In the picture:
[0015] 1. Dust collector fan; 2. Fan sealing cover; 3. U-tube; 4. Dustproof bag; 5. Backflush chamber; 6. Compressed air system; 7. Vibrating screen; 8. Undersize outlet; 9. Sealed bag; 10. Partition; 11. Viewing window; 12. Observation port; 13. Glove opening; 14. Vibrating screen motor; 15. Filter chamber; 16. Filter element; 17. Oversize outlet; 18. Pipeline; 19. Differential pressure sensor; 20. Pressure reducing valve; 21. Backflush air gun; 22. Backflush air manifold. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0017] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0018] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0019] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.
[0020] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0021] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0022] like Figures 1 to 2 As shown, a dust-free dust removal device includes a dust removal fan 1, a back-blowing chamber 5, and a vibrating screen 7. The dust removal fan 1 is placed inside a fan sealing cover 2, and the exhaust port of the fan sealing cover 2 is connected to a U-shaped pipe 3. A dustproof bag 4 is connected to the U-shaped pipe 3 by a clamp, which can collect the dust at the exhaust port, facilitate regular cleaning, and reduce pollution to the workshop. The clamp connection also facilitates the replacement of the dustproof bag 4. The back-blowing chamber 5 is connected to an external compressed air system 6, which can continuously supply air to remove dust and improve the life of the filter element 16. The vibrating screen 7 is connected to the bottom of the back-blowing chamber 5.
[0023] In one embodiment, a partition 10 is provided above the fan sealing cover 2, a U-shaped pipe 3 passes through the partition 10 and a dust bag 4 is located above the partition 10. The partition 10 is an existing sandwich structure in the factory, and various pipes are generally run above it.
[0024] In one embodiment, a viewing window 11 is inclined on one side of the backflush chamber 5. The viewing window 11 is provided with an observation port 12 and a glove opening 13. A backflush air gun 21 is provided inside the backflush chamber 5. The backflush air gun 21 is fixed inside the viewing window 11 and connected to a backflush air manifold 22 through a hose. The backflush air manifold 22 is connected to the filter chamber 15. A filter element 16 is provided inside the filter chamber 15. One end of the filter element 16 is detachably installed inside the filter chamber 15 and the other end extends into the backflush chamber 5. The compressed air system 6 is connected to both the backflush air manifold 22 and the backflush air gun 21. The function of the backflush air manifold 22 is to provide a reverse airflow so that the dust on the filter element 16 falls off. The observation port 12 is used to observe the situation inside the backflush chamber 5. The glove opening 13 is used to put your hand into the backflush chamber 5 to operate the backflush gun 21 inside and backflush it towards the vibrating screen 7 below.
[0025] In one embodiment, the vibrating screen 7 is driven by the vibrating screen motor 14. The vibrating screen 7 can be selected with different mesh sizes and different number of layers according to actual needs. The vibrating screen 7 is equipped with a feeding port for feeding materials. The undersize outlet 8 and the oversize outlet 17 of the vibrating screen 7 are both connected to a sealing bag 9 by a clamp. The screened material is collected by the sealing bag 9 at the oversize outlet 17, and the starch after de-starching is collected by the sealing bag 9 at the undersize outlet 8 and can be directly reused.
[0026] In one embodiment, the backflush chamber 5 is connected to the compressed air system 6 via a pipe 18, on which a differential pressure sensor 19 and a pressure reducing valve 20 are installed to monitor and control its pressure.
[0027] The table below compares the tests conducted with those of the prior art and this application:
[0028]
[0029] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.
Claims
1. A dust-free powder removal device, characterized in that: The system includes a dust removal fan (1), a back-blowing chamber (5), and a vibrating screen (7). The dust removal fan (1) is placed inside a fan sealing cover (2), and the exhaust port of the fan sealing cover (2) is connected to a U-shaped pipe (3). A dustproof bag (4) is connected to the U-shaped pipe (3). The back-blowing chamber (5) is connected to a compressed air system (6), and the vibrating screen (7) is connected to the bottom of the back-blowing chamber (5).
2. The dust-free powder removal equipment according to claim 1, characterized in that: A partition (10) is provided above the fan sealing cover (2), the U-shaped tube (3) passes through the partition (10), and the dust bag (4) is located above the partition (10).
3. The dust-free powder removal equipment according to claim 1, characterized in that: The backflush chamber (5) has a viewing window (11) on one side at an angle, and the viewing window (11) has an observation port (12) and a glove opening (13).
4. The dust-free powder removal equipment according to claim 3, characterized in that: A backflush air gun (21) is installed in the backflush chamber (5). The backflush air gun (21) is fixed inside the viewing window (11) and connected to the backflush air bag (22) through a hose. The backflush air bag (22) is connected to the filter chamber (15). The compressed air system (6) is connected to the backflush air gun (21) and the backflush air bag (22) respectively.
5. The dust-free powder removal equipment according to claim 4, characterized in that: The filter chamber (15) is provided with a filter element (16). One end of the filter element (16) is detachably installed in the filter chamber (15) and the other end extends into the backflush chamber (5). The backflush air bag (22) is used to backflush and clean the filter element (16).
6. The dust-free powder removal equipment according to claim 1, characterized in that: The vibrating screen (7) is driven by a vibrating screen motor (14), and a sealing bag (9) is connected to both the undersize outlet (8) and the oversize outlet (17) of the vibrating screen (7).
7. The dust-free powder removal equipment according to claim 1, characterized in that: The backflush chamber (5) is connected to the compressed air system (6) via a pipe (18), on which a differential pressure sensor (19) and a pressure reducing valve (20) are installed.