A dust collecting device for a material receiving port

Abstract

This utility model relates to the field of ammonium sulfate production technology, specifically to a dust collection device for a receiving port. It includes a dust collection hood located at the lower end of the receiving port, with a filter assembly installed on the inner wall of the hood. Below the filter assembly is a collection pipe penetrating the side wall of the dust collection hood. The collection pipe is equipped with an automatic butterfly valve and an induced draft fan. At the other end of the collection pipe is a water bath dust collector. When the induced draft fan is turned on, a negative pressure is generated, forming an airflow around the receiving port, which carries dust into the dust collection hood. The dust is first pre-filtered by the filter assembly, with larger particles being trapped, while fine particles and gas pass through the collection pipe. The automatic butterfly valve can automatically open and close according to the system's operating status to prevent dust backflow. The dust-laden gas is transported by the induced draft fan to the water bath dust collector, where it undergoes further dust removal and purification. Finally, it meets emission standards and is discharged into the atmosphere. This effectively reduces dust and harmful gas emissions at the receiving port, improves the working environment, reduces the impact on worker health, and enhances the level of safe production.

Description

Technical Field

[0001] This utility model relates to the field of ammonium sulfate production technology, specifically to a dust collection device for a material receiving port. Background Technology

[0002] The drying process of ammonium sulfate and the discharge of ammonium sulfate will generate a large amount of ammonia gas and ammonium sulfate dust. Ammonia gas, ammonium sulfate dust and other substances harmful to the human body often appear at the receiving port, which not only pollutes the working environment, but may also affect the health of workers and pose a hidden danger to safe production.

[0003] Common dust collection devices in the prior art generally include a dust collection hood installed below the receiving port. The dust collection hood is used to capture and collect dust falling from the receiving port. Existing dust collection hoods have limited dust collection effectiveness and usually lack effective dust filtration devices, which means that the collected dust often contains a large number of fine particles. This not only reduces the value of dust recycling and reuse but may also still cause environmental pollution. Therefore, it is necessary to make improvements. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a dust collection device for the material receiving port to solve the above problems.

[0005] The purpose of this utility model is achieved as follows: a dust collection device for a material inlet includes a dust collection hood set at the lower end of the material inlet, a filter assembly provided on the inner wall of the dust collection hood, a collection pipe penetrating the side wall of the dust collection hood below the filter assembly, an automatic butterfly valve and an induced draft fan provided on the collection pipe, and a water bath dust collector provided at the other end of the collection pipe.

[0006] Preferably, the filtration assembly includes a HEPA filter screen and an activated carbon adsorption plate installed on the inner wall of the dust collection hood, with the activated carbon adsorption plate located below the HEPA filter screen.

[0007] Preferably, the inner sidewall of the dust collection hood is symmetrically provided with mounting members, the mounting members having a first slot and a second slot, the HEPA filter plate being inserted into the first slot, and the activated carbon adsorption plate being inserted into the second slot.

[0008] Preferably, the dust collection hood has an isosceles trapezoidal cross-sectional shape, and the mounting component has a right-angled triangle cross-sectional shape.

[0009] Preferably, the upper end of the dust collection hood is provided with a connecting pipe, and the connecting pipe and the material receiving port are connected by an installation component.

[0010] Preferably, the mounting assembly includes a connecting collar welded to the outside of the connecting pipe, the connecting collar having a threaded hole, and a locking bolt being threaded into the threaded hole.

[0011] Preferably, the number of threaded holes is four, and they are evenly distributed around the circumference of the connecting collar.

[0012] This utility model has the following beneficial effects:

[0013] 1. When in use, the dust collection device at the material inlet generates negative pressure after the induced draft fan is turned on, forming an airflow around the material inlet. This airflow carries the dust into the dust collection hood. The dust is first initially filtered by the filter components, where larger particles are trapped. Fine particles and gas pass through the collection pipe. The automatic butterfly valve can automatically open and close according to the system's operating status. It is open when the system is running and closed when the system is stopped to prevent dust backflow. The dust-laden gas is transported by the induced draft fan to the water bath dust collector, where it is further purified by the water bath. Finally, it is discharged into the atmosphere after meeting the emission standards. This effectively reduces the emission of dust and harmful gases at the material inlet, improves the working environment, reduces the impact on workers' health, and enhances the level of safe production.

[0014] 2. The upper end of the dust collection hood is equipped with a connecting pipe. The connecting pipe and the material inlet are connected by an installation component. During installation, align the connecting pipe with the material inlet and fix them together using the installation component, making the dust collection hood and the material inlet a whole. This ensures that dust can smoothly enter the dust collection hood. The installation component includes a connecting collar welded to the outside of the connecting pipe. The connecting collar has threaded holes, and locking bolts are threaded into the threaded holes. After aligning the connecting pipe with the material inlet, screw in the locking bolts. The tightening force of the bolts makes the connecting collar and the material inlet fit tightly together, thus fixing them. There are four threaded holes, which are evenly distributed around the circumference of the connecting collar. The four equally distributed threaded holes ensure that the locking bolts are evenly distributed around the connecting collar. When tightening the bolts, the force in all directions is uniform, so that the connecting collar and the material inlet are evenly stressed, improving the stability of the connection. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0018] Figure 3 This is a schematic diagram of the cooperation structure between the dust collection hood and the filter assembly of this utility model;

[0019] The labels in the attached diagram are:

[0020] 1. Material inlet; 2. Dust collection hood; 3. Filter assembly; 31. HEPA filter screen; 32. Activated carbon adsorption plate; 4. Collection pipe; 5. Automatic butterfly valve; 6. Exhaust fan; 7. Water bath dust collector; 8. Mounting parts; 9. First slot; 10. Second slot; 11. Connecting pipe; 121. Connecting collar; 122. Threaded hole; 123. Locking bolt. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the technical solutions in the specific embodiments of this utility model are clearly and completely described below to further illustrate this utility model. Obviously, the specific embodiments described are only a part of the embodiments of this utility model, and not all of them.

[0022] The following is in conjunction with the appendix Figure 1-3 The present invention will be described in further detail below.

[0023] Example 1:

[0024] A dust collection device for a receiving port includes a dust collection hood 2 located at the lower end of the receiving port 1. A filter assembly 3 is provided on the inner wall of the dust collection hood 2. A collection pipe 4 penetrating the side wall of the dust collection hood 2 is provided below the filter assembly 3. An automatic butterfly valve 5 and an induced draft fan 6 are provided on the collection pipe 4. A water bath dust collector 7 is provided at the other end of the collection pipe 4.

[0025] When in use, the induced draft fan 6 generates negative pressure after being turned on, forming an airflow around the material inlet 1, which carries the dust into the dust collection hood 2. The dust is first initially filtered by the filter component 3, where larger particles are trapped, while fine particles and gas pass through the collection pipe 4. The automatic butterfly valve 5, model DN150PN10, can automatically open and close according to the system's operating status. It opens when the system is running and closes when the system stops to prevent dust backflow. The dust-laden gas is transported by the induced draft fan 6 to the water bath dust collector 7, where it is further purified by water bath. Finally, it is discharged into the atmosphere after meeting the emission standards, effectively reducing the emission of dust and harmful gases at the material inlet, improving the working environment, reducing the impact on workers' health, and improving the level of safe production.

[0026] In this embodiment, the filter assembly 3 includes a HEPA filter plate 31 and an activated carbon adsorption plate 32 installed on the inner wall of the dust collection hood 2. The activated carbon adsorption plate 32 is located below the HEPA filter plate 31. Dust particles first pass through the HEPA filter plate 31 with the airflow, filtering out fine particles and achieving solid-liquid separation. The filtered gas continues to flow downward and passes through the activated carbon adsorption plate 32. The activated carbon adsorption removes harmful gases such as ammonia. The dual filtration of the HEPA filter plate 31 and the activated carbon adsorption plate 32 significantly improves the filtration efficiency. It can not only effectively intercept dust particles but also purify harmful gases, making the discharged gas cleaner, increasing the value of dust recycling, and reducing environmental pollution.

[0027] In this embodiment, the inner sidewall of the dust collection hood 2 is symmetrically provided with mounting members 8. The mounting members 8 have a first slot 9 and a second slot 10. The HEPA filter plate 31 is inserted into the first slot 9, and the activated carbon adsorption plate 32 is inserted into the second slot 10. During installation, the HEPA filter plate 31 and the activated carbon adsorption plate 32 are inserted into their respective slots, and the mounting members 8 are used to fix the filter assembly 3. When the filter assembly 3 needs to be replaced, the old plate can be pulled out of the slot and the new plate can be inserted. This plug-in installation method facilitates the installation, disassembly and replacement of the filter assembly 3 without complicated tools, improves the convenience of maintenance, and allows for timely replacement of failed filter materials, ensuring the continuous and efficient operation of the device.

[0028] In this embodiment, the cross-sectional shape of the dust collection hood 2 is an isosceles trapezoid, and the cross-sectional shape of the mounting member 8 is a right triangle. The isosceles trapezoidal dust collection hood 2 is wider at the top and narrower at the bottom, which helps to guide the dust to gather downwards. The dust can be more easily slid down to the direction of the collection pipe 4 by gravity, reducing the accumulation of dust in the dust collection hood 2. The right triangle mounting member 8 has a stable structure, and the right angle sides are respectively attached to the inner wall of the dust collection hood 2 and the filter assembly 3, which can reliably fix the filter assembly 3. At the same time, it occupies little space, making the internal structure of the dust collection hood 2 more compact.

[0029] In this embodiment, the upper end of the dust collection hood 2 is provided with a connecting pipe 11. The connecting pipe 11 and the receiving port are connected by an installation component. During installation, the connecting pipe 11 is aligned with the receiving port, and the two are fixedly connected by the installation component, so that the dust collection hood 2 and the receiving port form a whole, ensuring that dust can smoothly enter the dust collection hood 2.

[0030] In this embodiment, the mounting assembly includes a connecting collar 121 welded to the outside of the connecting pipe 11. The connecting collar 121 has a threaded hole 122, and a locking bolt 123 is threaded into the threaded hole 122. After aligning the connecting pipe 11 with the receiving port, the locking bolt 123 is screwed in. The tightening force of the bolt makes the connecting collar 121 fit tightly with the receiving port, thus achieving fixation. There are four threaded holes 122, which are equidistantly distributed around the circumference of the connecting collar 121. The four equidistantly distributed threaded holes 122 make the locking bolt 123 evenly distributed around the connecting collar 121. When tightening the bolt, the force in all directions is uniform, so that the connecting collar 121 and the receiving port are evenly stressed, improving the stability of the connection.

[0031] The working principle of this utility model is as follows: When the dust collection device at the material inlet is in use, the induced draft fan 6 generates negative pressure, forming an airflow around the material inlet, which carries the dust into the dust collection hood 2. The dust is first initially filtered by the filter assembly 3, where larger particles are trapped, while fine particles and gas pass through the collection pipe 4. The automatic butterfly valve 5, model DN150PN10, can automatically open and close according to the system's operating status. It is open when the system is running and closed when the system is stopped to prevent dust backflow. The dust-laden gas is transported by the induced draft fan 6 to the water bath dust collector 7, where it undergoes further dust removal and purification. Finally, it meets emission standards and is discharged into the atmosphere. This effectively reduces dust and harmful gas emissions at the material inlet, improves the working environment, reduces the impact on worker health, and enhances safety. Production level; specifically, the filter assembly 3 includes a HEPA filter plate 31 and an activated carbon adsorption plate 32 installed on the inner wall of the dust collection hood 2. The activated carbon adsorption plate 32 is located below the HEPA filter plate 31. Dust particles first pass through the HEPA filter plate 31 with the airflow, filtering out fine particles and achieving solid-liquid separation. The filtered gas continues to flow downwards and passes through the activated carbon adsorption plate 32. The adsorption effect of activated carbon is used to remove harmful gases such as ammonia. The dual filtration of the HEPA filter plate 31 and the activated carbon adsorption plate 32 significantly improves the filtration efficiency. It can not only effectively intercept dust particles, but also purify harmful gases, making the discharged gas cleaner, improving the value of dust recycling, and reducing environmental pollution.

[0032] It should be noted that, depending on the implementation needs, the various components described in the embodiments of this utility model can be divided into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of this utility model. The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A dust collection device for a material receiving port, characterized in that: The dust collection hood (2) is located at the lower end of the receiving port (1). The inner wall of the dust collection hood (2) is provided with a filter assembly (3). Below the filter assembly (3) is a collection pipe (4) that penetrates the side wall of the dust collection hood (2). The collection pipe (4) is provided with an automatic butterfly valve (5) and an induced draft fan (6). The other end of the collection pipe (4) is provided with a water bath dust collector (7). The filter assembly (3) includes a HEPA filter screen (31) and an activated carbon adsorption plate (32) installed on the inner wall of the dust collection hood (2). The activated carbon adsorption plate (32) is located below the HEPA filter screen (31).

2. The dust collection device for a material receiving port according to claim 1, characterized in that: The inner sidewall of the dust collection hood (2) is symmetrically provided with mounting parts (8), the mounting parts (8) are provided with a first slot (9) and a second slot (10), the HEPA filter plate (31) is inserted into the first slot (9), and the activated carbon adsorption plate (32) is inserted into the second slot (10).

3. The dust collection device for a material receiving port according to claim 2, characterized in that: The dust collection hood (2) has an isosceles trapezoidal cross-section, and the mounting component (8) has a right-angled triangle cross-section.

4. The dust collection device for a material receiving port according to claim 1, characterized in that: The upper end of the dust collection hood (2) is provided with a connecting pipe (11), and the connecting pipe (11) and the receiving port (1) are connected by an installation component.

5. A dust collection device for a material receiving port according to claim 4, characterized in that: The mounting assembly includes a connecting collar (121) welded to the outside of the connecting pipe (11), the connecting collar (121) having a threaded hole (122), and a locking bolt (123) threadedly connected to the threaded hole (122).

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