Dust filtering device for a drying apparatus

Abstract

The utility model relates to dust filtering technical field, and disclose a kind of dust filtering treatment device of drying equipment, including conveying pipe, the one end of conveying pipe is equipped with the adsorption box for treating flue gas, the one end of adsorption box is provided with the chimney for exhaust, the one side of conveying pipe is provided with at least three holes, the one side of conveying pipe is provided with at least three storage boxes matched with hole, filter plate material for filtering dust is arranged in storage box, the bottom of storage box is open setting, the upper surface of storage box is provided with multiple slot holes for ventilation and equidistance distribution.The utility model is along the axial arrangement multiple independent extraction and replacement storage box and hierarchical filtering structure along conveying pipe, realizes the gradient filtration of dust and the non-stop replacement of filter material, solves the cumbersome, time-consuming in the process of replacing filter material, and it will cause production interruption, influence equipment operation continuity problem.

Description

Technical Field

[0001] This utility model relates to the field of dust filtration technology, and more specifically to a dust filtration treatment device for a drying equipment. Background Technology

[0002] In industries such as chemical, pharmaceutical, food and ceramics, spray dryers, fluidized bed dryers and other equipment are widely used to quickly dry liquid or wet solid materials into powder products. During the drying process, the dried product flowing with the hot air must be effectively separated from the exhaust gas. This is to recover valuable products and improve the yield, and also to ensure that the exhaust gas meets emission standards and environmental protection requirements.

[0003] Currently, the dust filtration methods of drying equipment are mainly divided into two types: external independent dust collectors and built-in integrated dust collectors. Among them, small laboratory dryers or small production equipment for certain specific processes adopt built-in integrated filtration solutions. This solution usually involves installing a filter chamber directly at the air outlet of the drying chamber and setting filter elements such as filter bags or filter cartridges inside it. However, when filter bags or filter cartridges need to be cleaned or replaced, operators must completely shut down the machine and open the dryer's main unit or filter chamber. This process is not only cumbersome and time-consuming, but it also leads to production interruptions, seriously affecting the continuity of equipment operation and overall production efficiency. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a dust filtration treatment device for drying equipment to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a dust filtration device for a drying equipment, comprising a conveying pipe, an adsorption box for treating flue gas at one end of the conveying pipe, a chimney for exhausting gas at one end of the adsorption box, at least three holes on one side of the conveying pipe, at least three storage boxes that mate with the holes on one side of the conveying pipe, a filter plate for filtering dust inside the storage box, an open bottom for the storage box, a plurality of equally spaced slots for ventilation on the upper surface of the storage box, two symmetrically distributed fixing blocks on the inner wall of the conveying pipe, each fixing block having a sliding groove that mates with the storage box, and at least three sets of limiting components that mate with the storage box on the outer side of the conveying pipe.

[0006] As a further embodiment of this utility model, the storage box is provided with a slide rail inside, and the filter plate can be slidably installed inside the storage box through the slide rail, and the filter plate is adapted to the storage box.

[0007] As a further embodiment of this utility model, the storage box is provided with sealing strips at both the top and bottom ends that match the holes.

[0008] As a further embodiment of this utility model, the limiting component includes a baffle disposed on the outside of the conveying pipe, and two locking blocks that cooperate with the baffle and are symmetrically distributed on one side of the conveying pipe, and a channel is formed between the two locking blocks.

[0009] As a further embodiment of this utility model, the top of the baffle is provided with an indexing pin, and one side of the conveying pipe is provided with a pin hole that cooperates with the indexing pin.

[0010] As a further embodiment of this invention, a stop block for limiting the position of the baffle is provided on one side of the conveying pipe.

[0011] As a further embodiment of this utility model, the baffle is in contact with the stop block, and when the baffle is in contact with the stop block, the baffle can completely cover the hole.

[0012] As a further embodiment of this invention, the three storage boxes are distributed sequentially along the axial direction of the conveying pipe, and each storage box can store different filter materials.

[0013] The technical effects and advantages of this utility model are as follows: 1. This utility model achieves gradient filtration of dust and non-stop replacement of filter media by setting multiple independently replaceable storage boxes and a graded filtration structure along the axial direction of the conveying pipe. This solves the problems of cumbersome and time-consuming filter media replacement process, which can lead to production interruption and affect the continuity of equipment operation.

[0014] 2. This utility model achieves automatic sealing and reliable sealing of maintenance holes by providing a limiting component consisting of a baffle, indexing pin, locking block and stop block, thus solving the safety and environmental risks caused by exhaust gas leakage during maintenance.

[0015] 3. This utility model achieves a rapid sealing connection between the filter unit and the main pipeline by using a storage box with a sealing strip and a sliding groove inside the delivery pipe, thus solving the technical problems of poor airtightness, easy leakage, and complicated installation of traditional connection methods. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram showing the location of the adsorption box of this utility model.

[0018] Figure 3 This is a schematic diagram of the limiting component structure of this utility model.

[0019] Figure 4This is a cross-sectional schematic diagram of the conveying pipe of this utility model.

[0020] Figure 5 This is a schematic diagram of the slide groove structure of this utility model.

[0021] Figure 6 This is a schematic diagram of the filter plate of this utility model.

[0022] Figure 7 This is a schematic diagram of the bottom structure of the storage box of this utility model.

[0023] The attached diagram is labeled as follows: 1. Conveying pipe; 2. Adsorption box; 3. Chimney; 4. Baffle; 5. Locking block; 6. Storage box; 7. Indexing pin; 8. Stop block; 9. Fixing block; 10. Groove; 11. Filter plate; 12. Slide groove; 13. Sealing strip; 14. Slide track. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Reference Figures 1-7 This utility model provides a dust filtration device for a drying equipment, including a conveying pipe 1, an adsorption box 2 for treating flue gas at one end of the conveying pipe 1, a chimney 3 for exhausting gas at one end of the adsorption box 2, at least three holes on one side of the conveying pipe 1, and at least three storage boxes 6 that cooperate with the holes on one side of the conveying pipe 1. A filter plate 11 for filtering dust is provided in the storage box 6, wherein the filter plate 11 can be a polyester board with good wear resistance and acid and alkali resistance, which can achieve efficient filtration of dust. It should be noted that: the adsorption box 2 is equipped with an activated carbon adsorption component, which can adsorb residual trace gaseous pollutants, and can also treat low concentrations and small air volumes of VOCs or odors. The adsorption box 2 is existing technology, and those skilled in the art can set it up according to actual needs, which will not be elaborated here.

[0026] The storage box 6 has an open bottom and multiple equally spaced slots 10 on its upper surface for ventilation. Two symmetrically distributed fixing blocks 9 are installed inside the conveying pipe 1. Each fixing block 9 has a sliding groove 12 that cooperates with the storage box 6. When the storage box 6 is fully inserted into the conveying pipe 1 through the sliding groove 12 in the fixing block 9, the bottom opening communicates with the inner cavity of the conveying pipe 1 to form an exhaust gas inlet, while the equally spaced slots 10 on the upper surface become the outlet for the filtered gas. Thus, when the exhaust gas flows in the conveying pipe 1, it will enter from the bottom opening of the storage box 6 under the action of airflow pressure, pass upward through the internal filter plate 11 to complete filtration, and the purified gas will finally be evenly discharged through the equally spaced slots 10 on the upper surface and re-enter the flow channel of the conveying pipe 1.

[0027] The storage box 6 has a slide rail 14 inside, through which the filter plate 11 can be slidably installed inside the storage box 6. The filter plate 11 is compatible with the storage box 6. The slide rail 14 provides a precise installation positioning track for the filter plate 11, ensuring that it can be quickly and accurately pushed into the preset working position inside the storage box 6. When the filter plate 11 is fully in place along the slide rail 14, its outer contour fits tightly with the inner wall of the storage box 6, forming a stable fit. This forces the exhaust gas to pass completely through the filter medium of the filter plate 11 when it flows through the storage box 6, and prevents it from bypassing the gap between the filter plate 11 and the storage box 6, thus ensuring filtration efficiency. At the same time, when the filter plate 11 needs to be replaced, simply slide the old filter plate 11 out along the slide rail 14 and slide the new one in, achieving quick maintenance.

[0028] Both the upper and lower ends of the storage box 6 are provided with sealing strips 13 that match the holes. Each storage box 6 has sealing strips 13 on the upper and lower end faces that connect with the holes of the conveying pipe 1. When the storage box 6 is fully inserted into the conveying pipe 1 through the slide groove 12 and fixed by the limiting component, these sealing strips 13 will be squeezed to form a tight elastic sealing interface between the storage box 6 and the edge of the hole in the wall of the conveying pipe 1. This sealing interface can effectively prevent high-pressure exhaust gas from short-circuiting and leaking from the gap between the two when it flows through the storage box 6, thereby forcing all airflow to pass through the main passage of the filter plate 11 inside the storage box 6, ensuring that the filtration process is always effective.

[0029] In addition, at least three sets of limiting components that cooperate with the storage box 6 are provided on the outside of the conveying pipe 1. The limiting components include a baffle 4 provided on the outside of the conveying pipe 1, an indexing pin 7 on the top of the baffle 4, a pin hole that cooperates with the indexing pin 7 on one side of the conveying pipe 1, and two locking blocks 5 that cooperate with the baffle 4 and are symmetrically distributed on one side of the conveying pipe 1, forming a channel between the two locking blocks 5. When it is necessary to completely pull the storage box 6 out of the corresponding hole of the conveying pipe 1 for maintenance, the operator first loosens the indexing pin 7, allowing it to disengage from the pin hole on the side of the conveying pipe 1. Once this locking is released, the baffle 4 is no longer fixed, and it will automatically and quickly fall downwards in the vertical channel formed by the two locking blocks 5 by its own weight, until the bottom completely blocks the hole exposed by the removal of the storage box 6, thus achieving automatic closure of the hole opening of the conveying pipe 1 at the moment the storage box 6 is removed.

[0030] A stop 8 is provided on one side of the conveying pipe 1 to limit the position of the baffle 4. The baffle 4 is in contact with the stop 8, and when the baffle 4 is in contact with the stop 8, the baffle 4 can completely cover the hole. When the baffle 4 falls due to gravity or is pushed to the working position by hand, the bottom of the baffle 4 will contact the stop 8. The stop 8 acts as a blocking component and forcibly restricts the final position of the baffle 4 by contacting the baffle 4. When the baffle 4 is in contact with the stop 8, the baffle 4 can completely and accurately cover the hole exposed on the conveying pipe 1 due to the removal of the storage box 6, forming a perfect cover and ensuring the absolute reliability of the seal.

[0031] When encountering situations where there is little dust and frequent replacement of filter plates 11 is not required, and the dry matter is highly polluting, three storage boxes 6 are distributed sequentially along the axial direction of the conveying pipe 1. Each storage box 6 can store different filter materials. Specifically, the storage box 6 located at the front end of the airflow can be loaded with filter materials with larger pores and strong dust holding capacity (such as polyester filter plates), which mainly intercept larger dust particles with higher concentrations in the exhaust gas. The storage box 6 in the middle section of the airflow can be loaded with medium-efficiency filter materials (such as polytetrafluoroethylene filter plates), which are responsible for capturing finer particles that have passed through the previous stage. The storage box 6 at the very end is loaded with high-precision filter materials (such as aramid filter plates or polytetrafluoroethylene membrane filter media), which are specifically used to remove fine dust. This decomposes the single filtration process into multiple specialized filtration stages, thereby significantly improving dust collection efficiency and overall filtration effect.

[0032] The working principle of this utility model is as follows: The high-temperature dusty exhaust gas generated by the drying equipment first enters the conveying pipe 1. As the exhaust gas flows in the conveying pipe 1, it passes through the bottom openings of multiple storage boxes 6 in sequence and is forced upward through the different filter plates 11 loaded inside the storage boxes 6. Then, it re-enters the flow path of the conveying pipe 1 through the slots 10 on the upper surface of the storage boxes 6, and finally enters the adsorption box 2 for further treatment and is discharged through the chimney 3. During this process, the dust is intercepted step by step on the filter plates 11. When it is necessary to replace or clean the filter plates 11, the entire storage box 6 is moved along the fixing block 9. The slide 12 is pulled outward, and the hole of the storage box 6 can be effectively blocked by the limiting component to prevent exhaust gas from overflowing from the hole during the replacement or cleaning of the filter plate 11, causing environmental pollution or affecting the health of the operators. In addition, the filter plate 11 can be replaced by sliding out through the slide 14 inside the storage box 6. After maintenance, the blocking component is used to remove the hole, and the storage box 6 is inserted back into the slide 14 in the fixing block 9. In addition, the sealing strip 13 contacts the upper and lower ends of the hole to seal the hole with the storage box 6.

[0033] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change. The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs. The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A dust filtration device for a drying equipment, comprising a conveying pipe (1), characterized in that: One end of the conveying pipe (1) is provided with an adsorption box (2) for treating flue gas. One end of the adsorption box (2) is provided with a chimney (3) for exhausting gas. At least three holes are provided on one side of the conveying pipe (1). At least three storage boxes (6) that cooperate with the holes are provided on one side of the conveying pipe (1). A filter plate (11) for filtering dust is provided inside the storage box (6). The bottom of the storage box (6) is open. Multiple slots (10) that are equally distributed for ventilation are provided on the upper surface of the storage box (6). Two fixing blocks (9) symmetrically distributed on the inner wall of the conveying pipe (1) are provided inside the conveying pipe (1). Each fixing block (9) has a sliding groove (12) that cooperates with the storage box (6). At least three sets of limiting components that cooperate with the storage box (6) are provided on the outer side of the conveying pipe (1).

2. The dust filtration device for a drying equipment according to claim 1, characterized in that: The storage box (6) is provided with a slide (14) inside. The filter plate (11) can be slidably installed inside the storage box (6) through the slide (14), and the filter plate (11) is compatible with the storage box (6).

3. The dust filtration device for a drying equipment according to claim 1, characterized in that: The storage box (6) is provided with sealing strips (13) at both the top and bottom ends to match the holes.

4. The dust filtration device for a drying equipment according to claim 1, characterized in that: The limiting component includes a baffle (4) disposed on the outside of the conveying pipe (1), and two locking blocks (5) that cooperate with the baffle (4) and are symmetrically distributed on one side of the conveying pipe (1), and a channel is formed between the two locking blocks (5).

5. The dust filtration device for a drying equipment according to claim 4, characterized in that: The top of the baffle (4) is provided with an indexing pin (7), and one side of the conveying pipe (1) is provided with a pin hole that cooperates with the indexing pin (7).

6. The dust filtration device for a drying equipment according to claim 5, characterized in that: The conveying pipe (1) is provided with a stop (8) on one side for limiting the baffle (4).

7. A dust filtration device for a drying equipment according to claim 6, characterized in that: The baffle (4) is in contact with the block (8), and when the baffle (4) is in contact with the block (8), the baffle (4) can completely cover the hole.

8. The dust filtration device for a drying equipment according to claim 1, characterized in that: The three storage boxes (6) are distributed sequentially along the axial direction of the conveying pipe (1), and each storage box (6) can store different filter materials.

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