Double-helix ash removal structure and sludge drying machine

Abstract

The utility model discloses a double-helix ash removing structure and a sludge drying machine. The ash removing structure comprises an ash collecting plate, two spiral conveying assemblies and a fan assembly. The dust collecting plate is arranged below the mesh belt in the width direction of the mesh belt, the two spiral conveying assemblies are arranged on the dust collecting plate in a spaced mode and divide the dust collecting plate into a first plate body, a second plate body and a third plate body, and the conveying direction of the spiral conveying assemblies is consistent with the length direction of the mesh belt; the fan assembly is arranged on the side, away from the spiral conveying assembly, of the first plate body and blows air to the dust collecting plate in the width direction of the mesh belt. The middle of the second plate body arches upwards to form an inverted V shape, and the highest point of the second plate body does not exceed the highest point of an air supply outlet of the fan assembly. By arranging the two spiral conveying assemblies, the device can be matched with a long net belt for dust collection and cleaning, and the situation of dust accumulation is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of sludge drying, and in particular to a double-helix dust cleaning structure and a sludge dryer. Background Art

[0002] Sludge dryer is a device used to dry sludge. Existing sludge dryers generally use mesh belts to transport sludge. Since the mesh belts are perforated, as the sludge dries, dust will fall along the pores of the mesh belts. If the dust is not cleaned for a long time, it will cause dust accumulation, affecting the cleanliness of the unit and affecting the normal use of the unit.

[0003] In order to collect the fallen dust, the existing sludge dryer is generally equipped with a cleaning structure, which uses a single spiral rod to transport dust. However, when the width of the mesh belt is lengthened, only one spiral rod is set in the cleaning structure, which will cause the dust collecting plate to tilt too much, which is prone to dust accumulation. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a double-spiral cleaning structure and a sludge dryer, which can adapt to a longer mesh belt for collecting and cleaning ash by setting two spiral conveying components to avoid dust accumulation.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] On the one hand, a double-spiral ash cleaning structure is provided, comprising: an ash collecting plate, two spiral conveying assemblies and a fan assembly; the ash collecting plate is arranged below the mesh belt along the width direction of the mesh belt, and the two spiral conveying assemblies are arranged at intervals on the ash collecting plate, and the ash collecting plate is divided into a first plate body, a second plate body and a third plate body, the conveying direction of the spiral conveying assembly is consistent with the length direction of the mesh belt, the fan assembly is arranged on the side of the first plate body away from the spiral conveying assembly, and the fan assembly blows air toward the ash collecting plate along the width direction of the mesh belt; the middle position of the second plate body is arched upward to form an inverted V shape, and the highest point of the second plate body does not exceed the highest point of the air outlet of the fan assembly.

[0007] Furthermore, the spiral conveying assembly includes an arc tube and a spiral rod, the spiral rod is rotatably installed in the arc tube, the arc mouth of the arc tube faces upward, and the bottom of the arc tube is also provided with an ash outlet, and the ash outlet is arranged at the end of the conveying direction.

[0008] Furthermore, a splicing piece is provided on the arc tube, and the splicing piece can be spliced ​​with the first plate body, the second plate body, or the third plate body.

[0009] Furthermore, a plurality of support plates are provided below the arc tube.

[0010] Furthermore, a plurality of shielding strips are provided at intervals along the length direction of the first plate body and the second plate body, and the shielding strips divide the first plate body and the second plate body into a plurality of relatively independent dust collection areas.

[0011] Furthermore, the fan assembly includes at least two air duct fans, and the two air duct fans are spaced apart along the length direction of the ash collecting plate.

[0012] Furthermore, a fan bracket is provided at the bottom of the air duct machine.

[0013] Furthermore, a detachable or openable maintenance door is provided on the third plate.

[0014] On the other hand, a sludge dryer is also provided, comprising a mesh belt and a power assembly, wherein the driving end of the power assembly is connected to the mesh belt for driving the mesh belt to transport sludge, and further comprising a double-helix cleaning structure as described in any one of the above items.

[0015] Furthermore, the width of the mesh belt is between 2 and 4 meters.

[0016] The beneficial effects of the present application are as follows: the ash collecting plate is laid along the width direction of the sludge dryer mesh belt, and its design ensures that it can fully receive the dust falling from the pores of the mesh belt; in order to effectively handle the dust, two spiral conveying components are arranged at intervals on the ash collecting plate. These two components not only divide the ash collecting plate into three areas: the first plate body, the second plate body and the third plate body, but also gradually push the collected dust forward through its conveying function along the length direction of the mesh belt. This double-helix design significantly improves the dust handling capacity, especially when the mesh belt width is large, and effectively avoids the problems of excessive inclination of the ash collecting plate and dust accumulation caused by a single spiral rod.

[0017] In order to further improve the dust cleaning effect, this structure also introduces a fan assembly, which is installed on the side of the first plate away from the spiral conveying assembly and blows air to the ash collecting plate along the width of the mesh belt. The air supply of the fan not only helps to blow up the fine dust attached to the ash collecting plate, making it easier to be captured by the spiral conveying assembly, but also promotes the uniform distribution of dust on the ash collecting plate through air flow guidance. In particular, for the inverted V-shaped area formed in the middle of the second plate, the layout of the fan air outlet makes this area the intersection of wind flow. Dust naturally flows to both sides under the action of wind and is continued to be transported forward by the spiral conveying assembly, thereby greatly reducing the accumulation of dust on the second plate, and also making it easier for wind to blow to the third plate, while realizing wind circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present application is further described in detail below with reference to the accompanying drawings and examples.

[0019] Figure 1 This is a three-dimensional diagram of the double-helix dust cleaning structure described in the embodiment of this application;

[0020] Figure 2 This is a three-dimensional diagram of the first plate according to an embodiment of the present application;

[0021] Figure 3 This is a three-dimensional diagram of the second plate according to an embodiment of the present application;

[0022] Figure 4 This is a three-dimensional diagram of the third plate according to the embodiment of the present application;

[0023] Figure 5 This is a three-dimensional diagram of the spiral conveying assembly described in an embodiment of the present application.

[0024] In the figure: 1. Ash collecting plate; 101. First plate; 102. Second plate; 103. Third plate; 104. Shielding strip; 2. Screw conveying assembly; 201. Arc tube; 202. Screw rod; 203. Ash outlet; 204. Splicing piece; 205. Support plate; 3. Fan assembly; 301. Duct machine; 302. Fan bracket; 4. Maintenance door. DETAILED DESCRIPTION

[0025] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0026] In the description of this application, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0027] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0028] like Figure 1-Figure 5 As shown, this embodiment provides a double-spiral cleaning structure, including: an ash collecting plate 1, two spiral conveying assemblies 2 and a fan assembly 3; the ash collecting plate 1 is arranged below the mesh belt along the width direction of the mesh belt, and the two spiral conveying assemblies 2 are arranged at intervals on the ash collecting plate 1, and the ash collecting plate 1 is divided into a first plate body 101, a second plate body 102 and a third plate body 103. The conveying direction of the spiral conveying assembly 2 is consistent with the length direction of the mesh belt, and the fan assembly 3 is arranged on the side of the first plate body 101 away from the spiral conveying assembly 2, and the fan assembly 3 blows air toward the ash collecting plate 1 along the width direction of the mesh belt; the middle position of the second plate body 102 is arched upward to form an inverted V shape, and the highest point of the second plate body 102 does not exceed the highest point of the air outlet of the fan assembly 3.

[0029] Based on the above scheme, during the sludge drying process, as the sludge moves and dries on the mesh belt, some dust will fall through the pores of the mesh belt onto the ash collecting plate 1 below. The ash collecting plate 1 is arranged along the width direction of the mesh belt to ensure that it can receive dust from the entire width of the mesh belt. Two spaced spiral conveying components 2 are provided on the ash collecting plate 1. These two components divide the ash collecting plate 1 into a first plate body 101, a second plate body 102, and a third plate body 103. The conveying direction of the spiral conveying components 2 is consistent with the length direction of the mesh belt, that is, they work along the moving direction of the mesh belt and gradually convey the collected dust forward. Since two spiral conveying components 2 are provided, even if the mesh belt width is long, the dust can be evenly distributed during the conveying process, avoiding the problem of excessive inclination of the ash collecting plate 1 and dust accumulation that may occur under the action of a single spiral rod 202. The fan assembly 3 is arranged on the side of the first plate 101 away from the spiral conveying assembly 2, and its air supply direction blows air toward the ash collecting plate 1 along the width direction of the mesh belt. This design has two main functions: first, through the action of wind, it helps to blow up the fine dust attached to the ash collecting plate 1, making it easier to be collected by the spiral conveying assembly 2; second, it provides airflow support for the inverted V-shaped area formed in the middle position of the second plate 102, so that the dust in this area can flow more smoothly to the spiral conveying assemblies 2 on both sides, reducing retention and accumulation in this area. Specifically, the middle position of the second plate 102 is arched upward to form an inverted V shape, and its highest point does not exceed the highest point of the air supply port of the fan assembly 3. This design utilizes the air supply effect of the fan, so that the dust on the second plate 102 is more likely to move to the sides under the action of wind and be collected by the spiral conveying assemblies 2 on both sides, thereby further reducing the accumulation of dust on the second plate 102. Moreover, the second plate 102 will not cause too much obstruction to the air supply, making it easier for the wind to blow to the third plate 103, while achieving wind circulation.

[0030] In summary, the setting of the double-helix conveying component 2 ensures the effective collection and timely transportation of dust even if the mesh belt width is long, thus avoiding the accumulation of dust on the ash collecting plate 1. The auxiliary function of the fan component 3 not only enhances the dust collection effect, but also promotes the uniform distribution of dust on the ash collecting plate 1 through the action of airflow, reduces the retention of dust in specific areas, and realizes the circulation of airflow. By optimizing the cleaning structure, the impact of dust accumulation on the internal cleanliness and normal use of the unit is reduced, and the failure rate and maintenance cost of the unit caused by dust accumulation are reduced. Moreover, the double-helix cleaning structure can adapt to mesh belts of different widths, thereby improving the flexibility and adaptability of the sludge dryer.

[0031] Furthermore, the spiral conveying assembly 2 includes an arc-shaped tube 201 and a spiral rod 202. The spiral rod 202 is rotatably mounted within the arc-shaped tube 201, with the arc opening of the arc-shaped tube 201 facing upward. A dust outlet 203 is also provided at the bottom of the arc-shaped tube 201, and the dust outlet 203 is located at the end of the conveying direction. The spiral rod 202 is rotatably mounted within the arc-shaped tube 201, with the arc opening of the arc-shaped tube 201 facing upward. This arrangement enables the spiral rod 202 to effectively push and transport dust above it during rotation. The design of the arc-shaped tube 201 not only conforms to the natural falling trajectory of dust, but also ensures the stability of dust during conveying, reducing the possibility of dust spillage. More importantly, an ash outlet 203 is carefully opened at the bottom of the arc tube 201, and this ash outlet 203 is cleverly set at the end of the conveying direction. In this way, when the spiral rod 202 transports the dust from the starting end of the ash collecting plate 1 to the end, the dust can be smoothly discharged through the ash outlet 203 and enter the subsequent collection or processing system. This design not only simplifies the dust collection process, but also improves the efficiency and reliability of the entire cleaning structure.

[0032] Furthermore, a splicing piece 204 is provided on the arc tube 201, and the splicing piece 204 can be spliced ​​with the first plate body 101, the second plate body 102, or the third plate body 103. The presence of the splicing piece 204 makes the installation and disassembly of the spiral conveying assembly 2 easier and faster. When the spiral conveying assembly 2 needs to be maintained or replaced, the staff can easily remove or install the spiral conveying assembly 2 from the ash collecting plate 1 by operating the splicing piece 204, without the need for large-scale disassembly of the entire cleaning structure, thereby greatly saving maintenance time and cost. Moreover, the splicing piece 204 also ensures a tight connection between the spiral conveying assembly 2 and the ash collecting plate 1. During the operation of the equipment, this tight connection can effectively prevent dust from leaking from the connection, ensuring the stability and reliability of the cleaning effect.

[0033] At the same time, a plurality of support plates 205 are provided below the arc-shaped tube 201. These support plates 205 not only provide solid support for the arc-shaped tube 201, but also effectively disperse the force generated by the arc-shaped tube 201 and its internal spiral rod 202 during rotation through their distribution and structural design, thereby reducing vibration and noise. The provision of the support plates 205 also makes the structure of the entire spiral conveying assembly 2 more stable, improving its durability and reliability in harsh working environments. In addition, the support plates 205 are also easy to clean and maintain. When the spiral conveying assembly 2 needs to be cleaned or replaced, the staff can easily remove the dust and debris under the support plates 205 to keep the equipment clean and tidy.

[0034] In some embodiments, the first plate 101 and the second plate 102 are provided with a plurality of shielding strips 104 spaced apart along their lengths. The shielding strips 104 divide the first plate 101 and the second plate 102 into a plurality of relatively independent dust collection areas. Each dust collection area forms a relatively closed space under the action of the shielding strips 104, so that dust falling from the mesh belt pores can fall more concentratedly in the area, reducing the diffusion and dispersion of dust on the dust collection plate 1. This design not only improves the dust collection efficiency, but also makes subsequent cleaning work more convenient, because the staff can carry out targeted cleaning of each dust collection area without having to clean the entire dust collection plate 1.

[0035] In addition, the provision of the shielding strips 104 also helps to reduce the impact of the airflow generated by the fan assembly 3 on the dust collection area. By properly arranging the position and height of the shielding strips 104, the airflow can be guided to blow more evenly through the dust collection area, avoiding the formation of vortices or dead corners in certain areas, thereby further improving the dust collection effect.

[0036] Optionally, the fan assembly 3 includes at least two duct machines 301, and the two duct machines 301 are spaced apart along the length direction of the ash collecting plate 1. By adopting multiple duct machines 301, it can be ensured that each area along the length direction of the ash collecting plate 1 can obtain sufficient air supply, thereby achieving uniform blowing and collection of dust. This distributed air supply design can not only improve the working efficiency of the fan assembly 3, but also reduce the dust accumulation problem caused by insufficient local air supply. Moreover, the interval setting of the duct machines 301 is also convenient for adjustment and optimization according to the actual size of the sludge dryer and the amount of dust generated. By adjusting the number and position of the duct machines 301, we can respond to different work scenarios and needs more flexibly, and further improve the adaptability and reliability of the double-helix cleaning structure.

[0037] Generally, a fan bracket 302 is provided at the bottom of the ducted air conditioner 301. As the supporting structure of the ducted air conditioner 301, the fan bracket 302 must be designed with full consideration of factors such as load-bearing capacity, stability, and ease of installation and maintenance. Through reasonable structural design and material selection, the fan bracket 302 can effectively support the weight of the ducted air conditioner 301 and remain stable and stable during operation.

[0038] It is worth mentioning that a detachable or openable maintenance door 4 is provided on the third plate 103. This solution allows the staff to easily access the target area by opening or removing the maintenance door 4 without having to completely disassemble the entire cleaning structure if the internal spiral conveying assembly 2, duct machine 301 or other components need to be inspected, cleaned or replaced during the operation of the equipment. This not only greatly improves maintenance efficiency, but also reduces maintenance costs and reduces production losses caused by equipment downtime. The detachable or openable nature of the maintenance door 4 also facilitates deep cleaning of the equipment. During the sludge drying process, dust and dirt may accumulate in various corners of the equipment, and the provision of the maintenance door 4 provides a convenient cleaning channel for these hard-to-reach areas.

[0039] Furthermore, the design of maintenance door 4 also takes into account sealing and safety. When closed, maintenance door 4 should effectively isolate external interference and prevent dust and moisture from entering the equipment. Furthermore, maintenance door 4 should be equipped with necessary locking mechanisms and safety warning signs to ensure the safety of personnel during maintenance.

[0040] On the other hand, a sludge dryer is also provided, comprising a mesh belt and a power assembly, wherein the driving end of the power assembly is connected to the mesh belt for driving the mesh belt to transport the sludge, and further comprising a double-helix cleaning structure as described in any of the above items. As the main component for carrying and transporting the sludge, the mesh belt is rationally designed, sturdy and durable, and can ensure the stable transmission of the sludge during the drying process. The power assembly drives the mesh belt to move at a set speed and direction through its powerful driving force, thereby realizing continuous drying of the sludge. The most critical thing is that the sludge dryer is also equipped with the above-mentioned double-helix cleaning structure. The addition of this structure enables the dust and impurities generated during the drying process to be collected and processed in a timely and effective manner, avoiding the accumulation and diffusion of dust inside the equipment, and ensuring the cleanliness of the drying environment and the stability of the drying effect. At the same time, the flexibility and maintainability of the double-helix cleaning structure also greatly improve the overall performance and reliability of the sludge dryer.

[0041] At the same time, the width of the mesh belt is between 2-4 meters. The setting of this width range is based on comprehensive consideration of sludge drying efficiency, processing capacity and equipment stability. A wider mesh belt can carry more sludge, thereby improving the processing capacity of the dryer and meeting the needs of large-scale production. At the same time, the appropriate mesh belt width can also ensure that the sludge is evenly distributed during the drying process, improving drying efficiency and quality. Among them, the conventional mesh belt width is 1.8 meters, and for a mesh belt with a width of 2.6 meters, the existing cleaning structure cannot achieve effective cleaning, so it is necessary to adopt the above-mentioned double-helix cleaning structure to ensure that dust does not continue to accumulate during the sludge drying process.

[0042] It is worth mentioning that due to the large width of the mesh belt, which exceeds the effective coverage range of traditional single-stage ash collection devices, the design of the ash collection plate 1 must match it to ensure that the sludge waste can be effectively collected and cleaned in a timely manner. Specifically, the width of the ash collection plate 1 is designed to be equal to or slightly larger than the mesh belt width. This layout ensures that the ash collection plate 1 can fully cover the entire width of the mesh belt, preventing sludge waste from accumulating at the edges of the mesh belt or in uncovered areas. This matching design not only improves the efficiency of waste collection, but also helps maintain the cleanliness of the equipment interior and reduces the risk of equipment failure caused by waste accumulation.

[0043] In addition, in order to avoid the problem of waste accumulation caused by excessive mesh belt width, when the mesh belt width exceeds 2 meters, using only one section of the ash collecting plate 1 cannot achieve effective ash collection, which will cause dust to accumulate on the ash collecting plate 1. In serious cases, it will cause unit failure. Therefore, the sludge dryer described in this application adopts a multi-section ash collecting device, such as dividing the ash collecting plate 1 into a first plate body 101, a second plate body 102 and a third plate body 103. These plates are differentiated according to the characteristics and processing requirements of the waste, such as adjusting the inclination angle, adding anti-slip measures, etc., to optimize the cleaning effect. The use of a multi-section ash collecting device not only disperses the pressure of waste collection, but also improves the flexibility and adaptability of the entire cleaning system.

[0044] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other positions or relationships are used solely for ease of description and simplified operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0045] Throughout this specification, references to terms such as "an embodiment" or "example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0046] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0047] The technical principles of the present application have been described above in conjunction with specific embodiments. These descriptions are intended solely to explain the principles of the present application and are not to be construed in any way as limiting the scope of protection of the present application. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present application without inventive effort, and such implementations will fall within the scope of protection of the present application.

Claims

1. A double helix cleaning structure, characterized in that: include: An ash collecting plate (1), two spiral conveying assemblies (2) and a fan assembly (3); the ash collecting plate (1) is arranged below the mesh belt along the width direction of the mesh belt, the two spiral conveying assemblies (2) are arranged at intervals on the ash collecting plate (1), and the ash collecting plate (1) is divided into a first plate body (101), a second plate body (102) and a third plate body (103); the conveying direction of the spiral conveying assembly (2) is consistent with the length direction of the mesh belt, the fan assembly (3) is arranged on the side of the first plate body (101) away from the spiral conveying assembly (2), and the fan assembly (3) blows air toward the ash collecting plate (1) along the width direction of the mesh belt; the middle position of the second plate body (102) is arched upward to form an inverted V shape, and the highest point of the second plate body (102) does not exceed the highest point of the air outlet of the fan assembly (3).

2. The double-helix dust cleaning structure according to claim 1, characterized in that: The spiral conveying assembly (2) comprises an arc-shaped tube (201) and a spiral rod (202); the spiral rod (202) is rotatably installed in the arc-shaped tube (201); the arc opening of the arc-shaped tube (201) faces upward; an ash outlet (203) is also provided at the bottom of the arc-shaped tube (201); and the ash outlet (203) is arranged at the end of the conveying direction.

3. The double-helix dust cleaning structure according to claim 2, characterized in that: The arc tube (201) is provided with a splicing piece (204), and the splicing piece (204) can be spliced ​​with the first plate body (101), the second plate body (102), or the third plate body (103).

4. The double-helix dust cleaning structure according to claim 2, characterized in that: A plurality of support plates (205) are provided below the arc-shaped tube (201).

5. The double-helix dust cleaning structure according to any one of claims 1 to 4, characterized in that: The first plate body (101) and the second plate body (102) are provided with a plurality of shielding strips (104) at intervals along their length direction, and the shielding strips (104) divide the first plate body (101) and the second plate body (102) into a plurality of relatively independent dust collection areas.

6. The double-helix dust cleaning structure according to any one of claims 1 to 4, characterized in that: The fan assembly (3) comprises at least two air duct fans (301), and the two air duct fans (301) are arranged at intervals along the length direction of the ash collecting plate (1).

7. The double-helix dust cleaning structure according to claim 6, characterized in that: A fan bracket (302) is provided at the bottom of the air duct unit (301).

8. The double-helix dust cleaning structure according to any one of claims 1 to 4, characterized in that: The third plate (103) is provided with a detachable or openable maintenance door (4).

9. A sludge dryer, comprising a mesh belt and a power assembly, wherein a driving end of the power assembly is connected to the mesh belt and is used to drive the mesh belt to transport sludge, characterized in that: It also includes the double-helix cleaning structure as described in any one of claims 1-8.

10. The sludge drying machine according to claim 9, characterized in that: The width of the mesh belt is between 2 and 4 meters.

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