Powder feeding dust removal device

Abstract

The utility model discloses a powder feeding dust removal device which comprises a feeding hopper, and a dust suction cover is hinged to the top of the feeding hopper. One end of the dust suction cover is hinged to the feeding hopper through a hinge structure, the other end of the dust suction cover is fixedly connected with a plurality of bent springs, and the bent springs are fixedly connected to the top of the feeding hopper; a spring pipe is mounted at an air outlet of the dust suction cover and is communicated with an air suction pipe; in the feeding process, the dust suction cover is pressed and turned, the opening amplitude of the dust suction cover is adjusted in a labor-saving mode, when the dust amount is large, the distance between the dust suction cover and the feeding hopper is reduced, and the dust suction degree is increased, and when the dust amount is small, the distance between the dust suction cover and the feeding hopper is increased, the feeding space is increased, and the feeding amount is increased. In the process of turning over the dust extraction cover, the bent spring is elastically compressed or stretched, and turning is labor-saving. By means of the mode, the opening amplitude of the dust suction cover after overturning is adjusted, the air suction and dust removal degree is adjusted, if dust is large, the overturning angle is small, and if dust is small, the overturning angle is large, and continuous material pouring is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of powder feeding dust removal, and particularly relates to a powder feeding dust removal device. Background Art

[0002] Powders are very common solid preparations, mostly in powder form. Compared with dosage forms such as liquid preparations and aerosols, powders are easier to store and use. Powders have very wide applications in industry, such as the lactic acid bacteria compound powder often used in breeding.

[0003] In the production process of powders, the production of powders mostly goes through many production processes such as the production of raw material preparations, purification, drying, and pulverization. After reaching the powder section in production, the intermediate powder materials are processed by different equipment, such as mixing processing, etc. Therefore, the feeding of powder materials is a production process that often needs to be carried out in the production process.

[0004] Specifically, the intermediate powder is fed into the processing production equipment through the hopper of the processing equipment. However, due to the light texture and small particle size of the powder materials, a large amount of dust escapes during the feeding process, which not only seriously endangers the physical health of operators, but also causes workshop pollution, especially in the clean area, and it is very difficult to clean up.

[0005] Therefore, in the actual working process, an exhaust hood is installed above the feeding hopper to achieve exhaust dust removal. However, most of the existing exhaust hoods are set in a solid installation method. Therefore, in the actual production process, once the material is poured into the hopper, the amount of dust is very large, and due to the inability to adjust the exhaust hood, a large amount of dust still escapes.

[0006] That is, the existing exhaust hood with a fixed installation method cannot adjust the distance between the exhaust hood and the hopper according to the dust escape situation, so as to facilitate the full suction of the escaped dust. The specific reason is that the exhaust hood has a certain weight and a relatively large volume, making it difficult to adjust and operate. Therefore, it can only be installed in a fixed hanging manner. However, the fixed hanging cannot be adjusted, resulting in pollution of a large amount of escaped dust during the feeding process. Content of the Utility Model

[0007] Based on the above background, the purpose of the utility model is to provide a powder feeding dust removal device.

[0008] To achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A powder feeding dust removal device includes a feeding hopper, and a dust extraction hood is hinged to the top of the feeding hopper;

[0010] One end of the dust extraction hood is hinged to the feeding hopper through a hinge structure, and the other end of the dust extraction hood is fixedly connected with a plurality of bent springs, and the bent springs are fixedly connected to the top of the feeding hopper;

[0011] A spring tube is installed at the air outlet position of the dust extraction hood, and the spring tube is connected to a dust extraction pipe;

[0012] During the feeding process, press down and turn the dust extraction hood to adjust the opening amplitude of the dust extraction hood with less effort. When the dust volume is large, reduce the distance between the dust extraction hood and the feeding hopper to increase the dust extraction degree. When the dust volume is small, increase the distance between the dust extraction hood and the feeding hopper to increase the feeding space and improve the feeding volume;

[0013] During the process of turning the dust extraction hood, the bending spring is elastically compressed or elastically stretched, and it can be turned with less effort.

[0014] Preferably, the hinge structure includes hinge plates respectively hinged on both sides of the dust extraction hood, and the upper ends of the hinge plates are hinged to the dust extraction hood through fixed pin shafts;

[0015] The lower ends of the hinge plates are fixed to the side position of the feeding hopper through a height adjustment structure.

[0016] Preferably, the height adjustment structure includes an adjustment opening formed at the lower end position of the hinge plate; the height adjustment structure further includes a fixed screw rod fixedly connected to the side wall position of the feeding hopper, the fixed screw rod passes through the adjustment opening, and a locking nut is threadedly connected to the fixed screw rod.

[0017] Preferably, the dust extraction hood includes a rectangular hood part and a conical hood part integrally formed with the rectangular hood part.

[0018] Preferably, a rectangular hood cover is fixedly connected to the outer side wall of the rectangular hood part;

[0019] The hood cover area is increased through the rectangular hood cover.

[0020] Preferably, both sides of the rear end of the dust extraction hood are fixedly connected with bending springs arranged at intervals.

[0021] Preferably, a filter bag mechanism is fixedly connected inside the rectangular hood part.

[0022] Preferably, the filter bag mechanism includes a filter bag mounting plate fixedly connected to the mouth position of the rectangular hood part, a plurality of air holes are formed in the filter bag mounting plate, and a plurality of dust removal filter bags respectively mounted on the air holes are fixedly connected to the top of the filter bag mounting plate.

[0023] Preferably, a rectangular flange plate is integrally formed at the discharge port of the feeding hopper.

[0024] The utility model has the following beneficial effects:

[0025] 1. During the working process, when the dust extraction hood is flipped, the bent spring is elastically compressed or stretched, making it labor-saving to flip. Specifically, during the discharging process, when the dust amount is very large, at this time, the dust extraction hood is flipped until it is close to the hopper to quickly suck away the escaping dust. When the dust amount is small, flipping increases the distance between the dust extraction hood and the feeding hopper, increasing the feeding space and improving the feeding amount. The increased distance facilitates discharging. During this process, with the cooperation of the bent spring, it is labor-saving during the upward flipping and raising process. By this method, the opening amplitude of the dust extraction hood after flipping is adjusted to control the degree of dust extraction and removal. For example, when the dust is large, the flipping angle is small; when the dust is small, the flipping angle is large, which is convenient for continuous discharging.

[0026] 2. During the working process, when dust extraction and removal are carried out, a large amount of dust enters the dust extraction hood at this time. Specifically, the negative pressure air flow carries the dust into each air hole and is filtered through the dust removal filter bag, so that a large amount of dust is intercepted in the filter bag. After the dust removal is completed, by shaking the filter bag, the filtered dust is made to fall from the air holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present invention;

[0029] Figure 2 It is a schematic diagram of the connection structure of the bent spring in the embodiment of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the filter bag mechanism installed on the dust extraction hood in the embodiment of the present invention;

[0031] Figure 4 It is a schematic diagram of the installation method of the filter bag in the embodiment of the present invention;

[0032] Figure 5 It is a schematic diagram of the layout method of the filter bag in the embodiment of the present invention.

[0033] The realization of the purpose, functional features and advantages of the present invention will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indication will also change accordingly.

[0036] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0037] Embodiment 1

[0038] As Figures 1-5 shown, a dust removal device for powder feeding includes a feeding hopper 3 (the feeding hopper 3 is installed on a working device, such as a mixer, with the same installation method as the existing one. A rectangular flange plate 31 is integrally formed at the discharge port of the feeding hopper 3. After aligning with the feeding port of the working device, it is fastened by a bolt method). A dust extraction hood 1 is hinged to the top of the feeding hopper 3.

[0039] Specifically, the front end of the dust extraction hood 1 is hinged to the feeding hopper 3 through a hinge structure. The specific hinge method is as follows: The hinge structure includes hinge plates 5 respectively hinged on both sides of the dust extraction hood 1. The upper ends of the hinge plates 5 are hinged to the dust extraction hood 1 through fixed pin shafts; the lower ends of the hinge plates 5 are fixed to the side position of the feeding hopper 3 through a height adjustment structure. The height adjustment structure includes an adjustment opening 51 opened at the lower end position of the hinge plate 5; the height adjustment structure further includes a fixed screw rod fixedly connected to the side wall position of the feeding hopper 3. The fixed screw rod passes through the adjustment opening 51, and a locking nut 511 is threadedly connected to the fixed screw rod.

[0040] First, loosen the lock nut, raise or lower the height of the dust extraction hood 1 to facilitate adjusting the distance between the dust extraction hood 1 and the cover of the feeding hopper 3. During the adjustment process, the fixing screw slides relative to the adjustment opening 51, and then tighten the upper nut 511.

[0041] Secondly, several bending springs 4 are fixedly connected to the other end of the dust extraction hood 1, and the bending springs 4 are fixedly connected to the top of the feeding hopper 3. Specifically, the rear end of the dust extraction hood 1 is fixedly connected with bending springs 4 arranged at intervals on both sides.

[0042] During the working process, when the dust extraction hood 1 is flipped, the bending springs 4 are elastically compressed or elastically stretched, which is labor-saving for flipping.

[0043] Specifically, during the pouring process, when the dust amount is very large, at this time, flip the dust extraction hood 1 until the dust extraction hood 1 is close to the hopper to quickly suck away the escaping dust. When the dust amount is small, flip to increase the distance between the dust extraction hood 1 and the feeding hopper 3, increase the feeding space, and improve the feeding amount. Increasing the distance facilitates pouring.

[0044] In this process, through the cooperation of the bending springs 4, it is labor-saving during the upward flipping and raising process.

[0045] A spring tube 11 is installed at the air outlet position of the above-mentioned dust extraction hood 1 (the spring tube 11 is made of plastic and deforms following the flipping of the dust extraction hood 1). In the conventional existing manner, the spring tube 11 is connected to an exhaust duct 12; the same as the existing exhaust method, a fan such as an axial flow fan is installed in the exhaust duct 12 to achieve exhaust.

[0046] The shape of the dust extraction hood 1 is: including a rectangular hood part and a conical hood part integrally formed with the rectangular hood part. A rectangular hood cover 2 is fixedly connected to the outer side wall of the rectangular hood part; the hood cover area is increased through the rectangular hood cover 2. In this way, when the amount of dust escaping is large, the exhaust dust removal range is increased through the rectangular hood cover 2 with an increased size. It is possible to fully suck the escaping dust.

[0047] Embodiment 2

[0048] As Figures 1-5 shown, on the basis of the structure of Embodiment 1 in this embodiment, a filter bag mechanism is fixedly connected inside the above-mentioned rectangular hood part. The filter bag mechanism is used to prevent a large amount of dust from escaping to the outside of the workshop during the exhaust dust removal process, resulting in environmental pollution.

[0049] Specifically, the filter bag mechanism includes a filter bag mounting plate 61 (the filter bag mounting plate 61 is rectangular) fixedly connected to the mouth position of the rectangular hood part. A plurality of air holes 62 are formed on the filter bag mounting plate 61, and a plurality of dust removal filter bags 63 respectively installed on the air holes 62 are fixedly connected to the top of the filter bag mounting plate 61. The dust removal filter bags 63 are accommodated inside the rectangular hood part.

[0050] During the working process, when the exhaust dust removal is carried out, a large amount of dust enters the dust extraction hood 1 at this time. Specifically, the negative pressure air flow carries the dust and enters from each air hole 62, and is filtered by the dust removal filter bag 63, so as to intercept a large amount of dust in the filter bag. After the dust removal is completed, by shaking the filter bag, the filtered dust is made to fall from the air hole 62.

[0051] Of course, the above description is not a limitation on the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the scope of the essence of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A powder feeding and dust removal device, characterized in that: It comprises an upper hopper, the top of which is hingedly provided with a dust extraction hood; One end of the dust hood is hinged to the upper hopper through a hinge structure, and the other end of the dust hood is fixedly connected to a plurality of bent springs, and the bent springs are fixedly connected to the top of the upper hopper; A spring tube is installed at the air outlet of the dust hood, and the spring tube is connected to an air exhaust pipe; During the feeding process, press down and flip the dust hood to adjust the opening range of the dust hood with effort. When the amount of dust is large, reduce the distance between the dust hood and the upper hopper to increase the degree of dust extraction. When the amount of dust is small, increase the distance between the dust hood and the upper hopper to increase the feeding space and increase the feeding amount. During the process of flipping the dust hood, the bent spring is elastically compressed or elastically stretched, which saves effort in flipping.

2. The powder feeding and dust removal device according to claim 1, characterized in that: The hinge structure comprises hinge plates respectively hinged on both sides of the dust hood, and the upper ends of the hinge plates are hinged to the dust hood via fixed pins; The lower end of the hinged plate is fixed to the side position of the upper hopper through a height adjustment structure.

3. The powder feeding and dust removal device according to claim 2, characterized in that: The height adjustment structure includes an adjustment port opened at the lower end of the hinged plate; the height adjustment structure also includes a fixed screw fixedly connected to the side wall of the upper hopper, the fixed screw passes through the adjustment port, and a locking nut is threadedly connected to the fixed screw.

4. The powder feeding and dust removal device according to claim 1, characterized in that: The dust extraction hood comprises a rectangular hood portion and a conical hood portion integrally formed with the rectangular hood portion.

5. The powder feeding and dust removal device according to claim 4, characterized in that: A rectangular cover is fixedly connected to the outer side wall of the rectangular cover portion; Increase the cover area with a rectangular cover.

6. The powder feeding and dust removal device according to claim 1, characterized in that: The rear end of the dust hood is fixedly connected with bent springs arranged at intervals on both sides.

7. The powder feeding and dust removal device according to claim 4, characterized in that: A filter bag mechanism is fixedly connected inside the rectangular cover portion.

8. The powder feeding and dust removal device according to claim 7, characterized in that: The filter bag mechanism comprises a filter bag mounting plate fixedly connected to the mouth of the rectangular cover, a plurality of air holes are provided on the filter bag mounting plate, and a plurality of dust removal filter bags respectively mounted on the air holes are fixedly connected to the top of the filter bag mounting plate.

9. The powder feeding and dust removal device according to claim 1, characterized in that: The discharge port of the upper hopper is integrally formed with a rectangular flange plate.

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