Dust collecting cover for packaging workshop

Abstract

The utility model relates to the technical field of dust covers, discloses a dust collecting cover for a packaging workshop, and solves the problems that particle impurities such as dust in air can be sucked into a water washing tower together when an exhaust system exhausts waste gas due to the lack of a filtering structure in the conventional collecting cover, and impurities such as dust are mixed into dilute ammonia water. A dust collecting cover for a packaging workshop comprises a cover body and a connecting pipe fixedly connected to the top end of the cover body, a placing plate is fixedly connected to the inner wall of the cover body, a filtering assembly used for filtering impurities in air is placed at the top end of the placing plate, a second fixing plate is placed at the top end of the placing plate, a filtering plate is placed at a second positioning groove, and a first fixing plate is closed. At the moment, the filter plate is connected with the second positioning groove and the first positioning groove in an embedded mode, when workshop dust is absorbed through the air draft system, the filter plate filters out dust and other impurities in air, the filtered ammonia gas enters the cover body through the filter holes, and the purity of the ammonia gas is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust hoods, in particular to a dust collecting hood for a packaging workshop. Background Art

[0002] A dust collection hood is a device used to collect dust and particulate matter during industrial production processes. It is usually a hood or shell covering industrial equipment or production sites, which can effectively collect the generated dust and particulate matter to prevent them from spreading into the surrounding environment and causing pollution.

[0003] In the production process of ammonium salt series products, the exhaust system will draw the ammonia gas emitted from the workshop's waste gas into the water washing tower for water washing. The gas will be discharged after the washing treatment meets the standards. Dilute ammonia water will be produced in the water washing tower after washing. Dilute ammonia water has many uses in industry. The existing collection hood lacks a filtering structure. Therefore, when the exhaust system draws the waste gas, dust and other particulate impurities in the air will be drawn into the water washing tower, so that dust and other impurities are mixed into the dilute ammonia water, resulting in reduced purity of the dilute ammonia water. Utility Model Content

[0004] The utility model aims to provide a dust collecting hood for a packaging workshop. The device is adopted to work, thereby solving the problem that the existing collecting hood lacks a filtering structure, so that when the exhaust system extracts the exhaust gas, dust and other particulate impurities in the air are sucked into the water washing tower together, so that dust and other impurities are mixed into the dilute ammonia water.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a dust collection hood for a packaging workshop, comprising a hood body, and a connecting pipe fixedly connected to the top of the hood body, a placement plate fixedly connected to the inner wall of the hood body, and a filter assembly for filtering impurities in the air is placed on the top of the placement plate;

[0006] The filter assembly includes a first fixing plate, a first positioning groove provided on the lower surface of the first fixing plate, a first threaded hole provided on the outer surface of the first fixing plate, a filter plate arranged at the lower end of the first fixing plate, a filter hole provided on the outer surface of the filter plate, a second fixing plate arranged at the lower end of the filter plate, a second positioning groove provided on the upper surface of the second fixing plate and a second threaded hole provided on the outer surface of the second fixing plate, and the filter plate is engaged with the first positioning groove and the second positioning groove.

[0007] Furthermore, the filter plate is a component made of cellulose material.

[0008] Furthermore, a third threaded hole is formed on the outer surface of the placement plate, a first locking bolt is threadedly connected inside the third threaded hole, and the first locking bolt is threadedly connected to both the first threaded hole and the second threaded hole.

[0009] Furthermore, a paddle is fixedly connected to the outer surface of the first fixing plate.

[0010] Furthermore, a connecting ring is fixedly connected to the outer surface of the connecting pipe, a fourth threaded hole is opened on the outer surface of the connecting ring, and a second locking bolt is threadedly connected inside the fourth threaded hole.

[0011] Furthermore, the top end of the connecting pipe is lower than the top end of the connecting ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model provides a dust collecting hood for a packaging workshop. The second fixing plate is placed on the top of the placing plate, the filter plate is placed at the second positioning groove, and the first fixing plate is closed. At this time, the filter plate is all engaged and connected with the second positioning groove and the first positioning groove. When the workshop dust is absorbed by the exhaust system, the filter plate filters the dust and other impurities in the air, and the filtered ammonia enters the interior of the hood through the filter hole, thereby improving the purity of the ammonia and solving the problem that the existing collection hood lacks a filtering structure. Therefore, when the exhaust system extracts the exhaust gas, the dust and other particulate impurities in the air will be sucked into the water washing tower together, so that the dust and other impurities are mixed into the dilute ammonia water. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0015] Figure 2 It is a schematic diagram of the structure of the connecting collar, the fourth threaded hole and the second locking bolt of the utility model;

[0016] Figure 3 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0017] Figure 4 This is a schematic diagram of the structure of the filter assembly of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the connection method between the filter assembly and the cover body of the utility model.

[0019] In the figure: 1, cover body; 2, connecting pipe; 3, connecting ring; 31, fourth threaded hole; 311, second locking bolt; 4, filter assembly; 41, first fixing plate; 411, first positioning groove; 412, first threaded hole; 413, paddle; 42, second fixing plate; 421, second positioning groove; 422, second threaded hole; 43, filter plate; 431, filter hole; 5, placement plate; 51, third threaded hole; 6, first locking bolt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0022] Combination Figure 1 , Figure 3 and Figure 5 A dust collecting hood for a packaging workshop includes a hood body 1 and a connecting pipe 2 fixedly connected to the top of the hood body 1. A placement plate 5 is fixedly connected to the inner wall of the hood body 1. A filter component 4 for filtering impurities in the air is placed on the top of the placement plate 5.

[0023] The utility model is further described below in conjunction with embodiments.

[0024] Embodiment 1:

[0025] See also Figure 2-Figure 5 The filter assembly 4 includes a first fixing plate 41, a first positioning groove 411 provided on the lower surface of the first fixing plate 41, a first threaded hole 412 provided on the outer surface of the first fixing plate 41, a filter plate 43 arranged at the lower end of the first fixing plate 41, a filter hole 431 provided on the outer surface of the filter plate 43, a second fixing plate 42 arranged at the lower end of the filter plate 43, a second positioning groove 421 provided on the upper surface of the second fixing plate 42 and a second threaded hole 422 provided on the outer surface of the second fixing plate 42, the filter plate 43 is engaged with the first positioning groove 411 and the second positioning groove 421, the second fixing plate 42 is placed on the top of the placing plate 5, the filter plate 43 is placed at the second positioning groove 421, and the first fixing plate 41 is closed. At this time, the filter plate 43 is engaged with the second positioning groove 421 and the first positioning groove 411. When the workshop dust is absorbed by the exhaust system, the filter plate 43 filters impurities such as dust in the air, and the filtered ammonia enters the interior of the cover body 1 through the filter hole 431, thereby improving the purity of the ammonia.

[0026] The filter plate 43 is a component made of cellulose material. Cellulose is a natural organic polymer material that is non-toxic and harmless and does not pollute the environment. Compared with other filter materials, the filter plate 43 made of cellulose is relatively low in cost and is suitable for large-scale production and use.

[0027] A third threaded hole 51 is provided on the outer surface of the placement plate 5, and a first locking bolt 6 is threadedly connected inside the third threaded hole 51. The first locking bolt 6 is threadedly connected to the first threaded hole 412 and the second threaded hole 422. The first locking bolt 6 passes through the first threaded hole 412 and the second threaded hole 422 in sequence and is connected to the third threaded hole 51, so as to facilitate fixing the first fixing plate 41 and the second fixing plate 42 inside the cover body 1. The first locking bolt 6 is taken out and the first fixing plate 41 and the second fixing plate 42 are separated, so as to facilitate taking out the filter plate 43 and replacing the saturated filter plate 43.

[0028] A paddle 413 is fixedly connected to the outer surface of the first fixing plate 41 , and the paddle 413 is used to facilitate taking out the first fixing plate 41 from the inside of the cover body 1 , thereby facilitating taking out the filter plate 43 .

[0029] A connecting ring 3 is fixedly connected to the outer surface of the connecting pipe 2, and a fourth threaded hole 31 is opened on the outer surface of the connecting ring 3. The fourth threaded hole 31 is internally threadedly connected to a second locking bolt 311, so that the external pipe is in contact with the connecting pipe 2. The second locking bolt 311 is used to fix the connecting pipe 2 to the external pipe. The second locking bolt 311 is removed to separate the external pipe from the connecting pipe 2, so as to facilitate the disassembly of the cover body 1.

[0030] The top of the connecting pipe 2 is lower than the top of the connecting collar 3, which facilitates fixing the connecting pipe 2 and the external pipeline inside the connecting collar 3 to improve air tightness and prevent exhaust gas leakage.

[0031] When in use, place the second fixing plate 42 on the top of the placing plate 5, place the filter plate 43 on the second positioning groove 421, and close the first fixing plate 41. At this time, the filter plate 43 is engaged with the second positioning groove 421 and the first positioning groove 411. When the workshop dust is absorbed by the exhaust system, the filter plate 43 filters the dust and other impurities in the air, and the filtered ammonia enters the inside of the cover body 1 through the filter hole 431, which improves the purity of the ammonia. When the filter plate 43 needs to be replaced, take out the second locking bolt 311, separate the external pipeline from the connecting pipe 2, and facilitate disassembly of the cover body 1. Take out the first locking bolt 6, separate the first fixing plate 41 and the second fixing plate 42, and use the paddle 413 to facilitate the removal of the first fixing plate 41 from the inside of the cover body 1, so as to facilitate the removal of the filter plate 43 and replace the filter plate 43.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust collecting hood for a packaging workshop, comprising a hood body (1), and a connecting pipe (2) fixedly connected to the top of the hood body (1), characterized in that: The inner wall of the cover body (1) is fixedly connected with a placement plate (5), and a filter assembly (4) for filtering impurities in the air is placed on the top of the placement plate (5); The filter assembly (4) comprises a first fixing plate (41), a first positioning groove (411) provided on the lower surface of the first fixing plate (41), a first threaded hole (412) provided on the outer surface of the first fixing plate (41), a filter plate (43) arranged at the lower end of the first fixing plate (41), a filter hole (431) provided on the outer surface of the filter plate (43), a second fixing plate (42) arranged at the lower end of the filter plate (43), a second positioning groove (421) provided on the upper surface of the second fixing plate (42) and a second threaded hole (422) provided on the outer surface of the second fixing plate (42), wherein the filter plate (43) is engaged with the first positioning groove (411) and the second positioning groove (421).

2. The dust collection hood for a packaging workshop according to claim 1, characterized in that: The filter plate (43) is a component made of cellulose material.

3. The dust collection hood for a packaging workshop according to claim 1, characterized in that: The outer surface of the placement plate (5) is provided with a third threaded hole (51), the interior of the third threaded hole (51) is threadedly connected with a first locking bolt (6), and the first locking bolt (6) is threadedly connected to both the first threaded hole (412) and the second threaded hole (422).

4. The dust collection hood for a packaging workshop according to claim 1, characterized in that: A paddle (413) is fixedly connected to the outer surface of the first fixing plate (41).

5. The dust collection hood for a packaging workshop according to claim 1, characterized in that: The outer surface of the connecting pipe (2) is fixedly connected to a connecting collar (3), the outer surface of the connecting collar (3) is provided with a fourth threaded hole (31), and the interior of the fourth threaded hole (31) is threadedly connected to a second locking bolt (311).

6. The dust collection hood for a packaging workshop according to claim 5, characterized in that: The top end of the connecting pipe (2) is lower than the top end of the connecting collar (3).

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