Sludge drying equipment

Abstract

The sludge drying equipment comprises a curing barn assembly, a cyclone dust collector, a pulse dust collector, a first connecting pipe, a second connecting pipe and a third connecting pipe. An air inlet and an air outlet are formed in the curing barn assembly, the input end of the first connecting pipe is connected with the air outlet, the output end of the first connecting pipe is connected to the cyclone dust collector, the second connecting pipe is connected with the cyclone dust collector and the pulse dust collector, and the pulse dust collector is connected with the first connecting pipe. The input end of the third connecting pipe is connected with the pulse dust collector, and the output end of the third connecting pipe is connected with the air inlet; a spraying assembly is arranged in the cyclone dust collector and sprays water towards the inner wall of the cyclone dust collector, so that the inner wall of the cyclone dust collector is always in a wet state. The cyclone dust collector and the pulse dust collector are combined for dust removal, the defects in the prior art can be effectively overcome, meanwhile, the spraying assembly is arranged, and the dust filtering effect is further improved through combination of water and dust.

Description

Technical Field

[0001] The present application relates to the technical field of drying equipment, and in particular to sludge drying equipment. Background Art

[0002] Sludge drying equipment is specifically designed for sludge, a material characterized by high moisture content, high viscosity, high water retention, and low calorific value. The unique internal design of the drying unit not only improves thermal efficiency but also effectively prevents sludge from sticking and overdrying within the dryer. During the drying process, the evaporation of moisture from the sludge generates large amounts of dust and gas. Directly released into the atmosphere, these dust and gas can pollute the environment, affect air quality, and even pose a health hazard. Therefore, existing sludge drying equipment requires dust removal equipment. Existing dust removal technologies primarily include bag filters, electrostatic precipitators, and spray dust collectors. While these dust removal systems can reduce dust pollution to a certain extent, they still have drawbacks. For example, bag filters are prone to water absorption and can form scale over time, affecting air permeability and dust removal effectiveness. They are also not anti-static or flame-retardant, posing safety risks. Electrostatic precipitators (ESPs) require high initial investment, consume large amounts of steel, and require high manufacturing and installation precision, otherwise their efficient operation cannot be guaranteed. Furthermore, due to the low wind speed in the electric field, ESPs occupy a relatively large area. Spray dust removal requires the installation of equipment such as water sprayers, which carries a large investment, but also has relatively low dust capture rates and low purification efficiency. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a sludge drying equipment that can effectively solve the defects in the existing technology by combining a cyclone dust collector and a pulse dust collector for dust removal. At the same time, it is equipped with a spray component to further improve the dust filtering effect by combining water with dust.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] On the one hand, a sludge drying equipment is provided, including: a baking room assembly, a cyclone dust collector, a pulse dust collector, a first connecting pipe, a second connecting pipe and a third connecting pipe; the baking room assembly is provided with an air inlet and an air outlet, the input end of the first connecting pipe is connected to the air outlet, the output end of the first connecting pipe is connected to the cyclone dust collector, the second connecting pipe is connected to the cyclone dust collector and the pulse dust collector, the input end of the third connecting pipe is connected to the pulse dust collector, and the output end of the third connecting pipe is connected to the air inlet; a spray assembly is provided in the cyclone dust collector, and the spray assembly sprays water toward the inner wall of the cyclone dust collector, so that the inner wall of the cyclone dust collector is always in a wet state.

[0006] Furthermore, the second connecting pipe includes a first end and a second end, the first end is connected to the top outlet of the cyclone dust collector through a first volute member, and the second end is connected to the pulse dust collector.

[0007] Furthermore, the second end is connected to the first side inlet of the pulse dust collector through a horn member.

[0008] Furthermore, the input end of the third connecting pipe is connected to the second side outlet of the pulse dust collector, and the second side and the first side are two adjacent side surfaces.

[0009] Furthermore, the input end of the third connecting pipe is connected to the second side outlet of the pulse dust collector through a second volute member.

[0010] Furthermore, an electric cabinet is included, the top of the electric cabinet extends upward to form a support bar, and the support bar is connected to the bottom or side of the third connecting pipe.

[0011] Furthermore, a fixing frame is provided at the bottom of the cyclone dust collector; and / or a supporting frame is provided at the bottom of the pulse dust collector.

[0012] Furthermore, the baking room assembly, the cyclone dust collector and the pulse dust collector are sequentially arranged at intervals along the first direction.

[0013] Furthermore, at least two ash collection ports are provided at the bottom of the pulse dust collector.

[0014] Furthermore, the spray assembly includes an annular water pipe arranged around the upper part of the inner wall of the cyclone dust collector, a water outlet is opened below the annular water pipe, and the annular water pipe can be connected to an external water supply device through a pipeline.

[0015] The beneficial effects of the present application are: by combining the cyclone dust collector and pulse dust collector, and assisted by the spray assembly, the problems of insufficient dust treatment and serious environmental pollution in the traditional sludge drying process are effectively solved. The core components of this equipment include the curing room assembly, the cyclone dust collector, the pulse dust collector, and the first, second, and third connecting pipes connecting these components. A large amount of dust and gas generated during the drying process of the curing room assembly is first discharged through the air outlet of the curing room assembly and introduced into the cyclone dust collector through the first connecting pipe. In the cyclone dust collector, the dust-containing gas is preliminarily separated under the action of rotating airflow, and large particles of dust are thrown to the wall and fall into the bottom for collection. It is particularly important that the spray assembly inside the cyclone dust collector continuously sprays water to the inner wall, keeping it in a wet state. This design not only enhances the adsorption effect of dust, but also reduces dust escape and improves dust removal efficiency. After preliminary treatment by the cyclone dust collector, the gas is then introduced into the pulse dust collector through the second connecting pipe for deep purification. In the pulse dust collector, fine dust in the gas is captured by high-efficiency filter bags to ensure that the discharged gas meets environmental protection standards. When the filter bag is clogged with too much dust affecting its air permeability, the pulse blowing device automatically starts to clean the filter bag efficiently, maintaining its long-term stable dust removal capacity. Finally, the gas thoroughly purified by the pulse dust collector is returned to the air inlet of the curing room assembly through the third connecting pipe, realizing the recycling of heat energy and further improving energy efficiency.

[0016] The design of this sludge drying equipment not only significantly improves the dust removal efficiency and environmental protection performance, but also reduces energy consumption and operating costs through recycling of gas. The addition of the spray assembly not only enhances the dust removal effect, but also improves the safety and service life of the equipment. Overall, this equipment is a major technical innovation in the field of sludge drying, providing a practical solution to the problem of dust pollution in traditional drying processes. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described in detail below according to the drawings and examples.

[0018] Figure 1 Perspective view of the sludge drying equipment according to the embodiment of the present application Figure 1 ;

[0019] Figure 2 Perspective view of the sludge drying equipment according to the embodiment of the present application Figure 2 ;

[0020] Figure 3 Front view of the sludge drying equipment according to the embodiment of the present application

[0021] Figure 4 Rear view of the sludge drying equipment according to the embodiment of the present application.

[0022] In the figure: 1. Curing room assembly; 2. Cyclone dust collector; 3. Pulse dust collector; 301. First side; 302. Second side; 4. First connecting pipe; 5. Second connecting pipe; 6. Third connecting pipe; 7. First volute; 8. Horn; 9. Second volute; 10. Support frame; 11. Fixing frame; 12. Electric cabinet; 13. Support bar. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] 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.

[0026] like Figures 1-4As shown, the present embodiment provides a sludge drying equipment, which comprises a curing room assembly 1, a cyclone dust collector 2, a pulse dust collector 3, a first connecting pipe 4, a second connecting pipe 5, and a third connecting pipe 6. The curing room assembly 1 is provided with an air inlet and an air outlet. The input end of the first connecting pipe 4 is connected to the air outlet, and the output end of the first connecting pipe 4 is connected to the cyclone dust collector 2. The second connecting pipe 5 connects the cyclone dust collector 2 and the pulse dust collector 3. The input end of the third connecting pipe 6 is connected to the pulse dust collector 3, and the output end of the third connecting pipe 6 is connected to the air inlet. A spraying assembly is arranged in the cyclone dust collector 2, which sprays water towards the inner wall of the cyclone dust collector 2, so that the inner wall of the cyclone dust collector 2 is always in a wet state.

[0027] Based on the above scheme, the equipment effectively solves the problems of insufficient dust treatment and serious environmental pollution in the traditional sludge drying process by innovatively combining the cyclone dust collector 2 and the pulse dust collector 3, and assisting with the spraying assembly. The core components of this equipment include the curing room assembly 1, the cyclone dust collector 2, the pulse dust collector 3, and the first, second, and third connecting pipes 6 connecting these components. The curing room assembly 1 is specially designed for sludge characteristics to efficiently dry the sludge while reducing internal sticking and over-drying. A large amount of dust and gas generated during the drying process is first discharged through the air outlet of the curing room assembly 1 and introduced into the cyclone dust collector 2 through the first connecting pipe 4. In the cyclone dust collector 2, the dust-containing gas is preliminarily separated under the action of rotating airflow, and large particles of dust are thrown towards the wall and fall into the bottom for collection. Crucially, the spraying assembly inside the cyclone dust collector 2 continuously sprays water towards the inner wall, keeping it wet. This design not only enhances the adsorption effect of dust but also reduces dust escape, improving dust removal efficiency. After preliminary treatment in the cyclone dust collector 2, the gas then enters the pulse dust collector 3 through the second connecting pipe 5 for deep purification. In the pulse dust collector 3, fine dust in the gas is captured by high-efficiency filter bags, ensuring that the discharged gas meets environmental standards. When the filter bags accumulate too much dust, affecting their air permeability, the pulse blowing device automatically starts to clean the filter bags, maintaining their long-term stable dust removal capacity. Finally, the gas thoroughly purified by the pulse dust collector 3 is returned to the air inlet of the curing room assembly 1 through the third connecting pipe 6, realizing the recycling of heat energy and further improving energy efficiency.

[0028] The design of this sludge drying equipment not only significantly improves dust removal efficiency and environmental performance but also reduces energy consumption and operating costs through gas recycling. The addition of the spraying assembly not only enhances dust removal efficiency but also improves the safety and service life of the equipment. Overall, this equipment is a significant technical innovation in the field of sludge drying, providing a practical solution to the dust pollution problem in traditional drying processes.

[0029] Further, in the structural design of the sludge drying equipment, special optimization is made for the second connecting pipe 5 connecting the cyclone dust collector 2 and the pulse dust collector 3. Specifically, the second connecting pipe 5 is composed of a first end and a second end, where the first end is closely connected to the top outlet of the cyclone dust collector 2 through a first volute 7 with an innovative design, which abandons the traditional 90-degree elbow and adopts a volute structure, bringing multiple advantages. First, the application of the first volute 7 significantly reduces the overall height of the equipment, making the entire sludge drying equipment more convenient during transportation and installation. The traditional elbow design often increases the height and complexity of the equipment, while the first volute 7 achieves optimal use of space through its streamlined design. Second, the unique design principle of the first volute 7 can effectively convert the angular kinetic energy generated in the cyclone dust collector 2 into linear kinetic energy. This energy conversion not only reduces energy loss during gas flow, but also avoids the secondary flow phenomenon caused by the 90-degree elbow, thereby ensuring smooth gas flow in the connecting pipe. Secondary flow is a complex flow phenomenon caused by inertia at the elbow, which can cause energy loss, increased pressure drop, and dust deposition, among other problems, which are effectively avoided by the design of the first volute 7.

[0030] Further, the second end is connected to the first side 301 inlet of the pulse dust collector 3 through a horn 8. The design of the horn 8 is inspired by the loudspeaker structure in acoustic principles, but its application here is to optimize gas flow. One end of the horn 8 is closely connected to the second end of the second connecting pipe 5, and the other end gradually expands and connects to the first side 301 inlet of the pulse dust collector 3. This design brings several significant advantages: smooth flow field transition: the horn 8 provides a smooth transition space for gas entering the pulse dust collector 3 from the second connecting pipe 5 through its gradually expanding shape, which helps to reduce turbulence and vortex phenomena during gas flow, reduce energy loss, and reduce dust deposition at the connection. Enhance air intake efficiency: due to the gradually expanding design of the horn 8, it can guide the gas to enter the pulse dust collector 3 at a more uniform speed and distribution, which helps the filter bags in the pulse dust collector 3 to better capture dust and improve dust removal efficiency. At the same time, uniform air intake distribution can also reduce local wear of the filter bags and prolong their service life. Compact structure: although the horn 8 itself increases the number of components, its compact design does not significantly increase the overall size of the equipment. On the contrary, by optimizing the connection method and layout, we can achieve compactness and efficiency of the overall structure of the equipment.

[0031] At the same time, the input end of the third connecting pipe 6 is connected to the outlet of the second side 302 of the pulse dust collector 3, and the second side 302 and the first side 301 are two adjacent sides. This adjacent side layout design brings about a significant space optimization effect. Since the two sides are adjacent, the third connecting pipe 6 can be connected to the outlet of the pulse dust collector 3 almost seamlessly without the need for additional turns or extensions of the pipeline. This not only reduces the additional space required for the pipeline, but also avoids energy loss and increased pressure drop that may be caused by excessive length or excessive bends in the pipeline. In addition, the connection method of adjacent sides also helps to simplify the overall structure of the equipment, reduce the number of components and connection points, and thus reduce the difficulty and cost of maintenance. At the same time, this compact layout also helps to improve the stability and reliability of the equipment and reduce failures that may be caused by pipeline vibration or loosening.

[0032] In addition, the input end of the third connecting pipe 6 is connected to the outlet of the second side 302 of the pulse dust collector 3 through the second volute member 9. The design of the second volute member 9 is similar to the first volute member 7 mentioned above, but its specific shape and size are customized according to the actual situation of the third connecting pipe 6 and the outlet of the second side 302 of the pulse dust collector 3. One end of the second volute member 9 is tightly connected to the outlet of the second side 302 of the pulse dust collector 3, and the other end gradually narrows and docks with the input end of the third connecting pipe 6. Through the introduction of the second volute member 9, the gas can undergo a smooth transition process before leaving the pulse dust collector 3 and entering the third connecting pipe 6. The streamlined design of the second volute member 9 helps to reduce turbulence and eddy currents in the gas flow, reduce energy loss, and ensure that the gas enters the third connecting pipe 6 at a more stable speed and pressure. Moreover, the second volute member 9 further optimizes the spatial layout of the equipment. Due to its compact design and connection method with the adjacent side, it can achieve effective connection between the pulse dust collector 3 and the third connecting pipe 6 without increasing the additional space requirement, which not only helps to reduce the footprint of the entire equipment, but also improves the overall aesthetics and maintenance convenience of the equipment.

[0033] In some embodiments, to further enhance the overall integration and space efficiency of the sludge drying equipment, a special design is employed for the connection between the electrical cabinet 12 and the third connecting pipe 6. Specifically, the top of the electrical cabinet 12 is cleverly designed with upwardly extending support bars 13. These bars 13 not only enhance the structural stability of the electrical cabinet 12 but also serve the important function of connecting and supporting the third connecting pipe 6. The design of the support bars 13 fully considers the layout requirements of the third connecting pipe 6 and the overall aesthetics of the equipment. They can be flexibly adjusted based on the direction and position of the third connecting pipe 6, ensuring a secure connection without affecting the normal operation of other components. By connecting the support bars 13 to the bottom or side of the third connecting pipe 6, a seamless connection between the electrical cabinet 12 and the third connecting pipe 6 is achieved, eliminating the need for additional brackets or fixings, thereby saving space and simplifying the structure. This design also offers other advantages. For example, the electrical components within the electrical cabinet 12 are more easily accessible and maintainable, as the support bars 13 create an easily accessible maintenance area at the top of the cabinet 12. At the same time, due to the tight connection between the support bar 13 and the third connecting pipe 6, the risk of loose connection or failure due to vibration or external force is also reduced.

[0034] In the structural design of the sludge drying equipment, in order to ensure that the cyclone dust collector 2 and the pulse dust collector 3 can be stably installed in the equipment, two optional support schemes are provided. First, for the cyclone dust collector 2, a fixing frame 11 is designed at its bottom. This fixing frame 11 is made of a solid metal material and has sufficient strength and stability to withstand the vibration and impact force generated by the cyclone dust collector 2 during operation. The fixing frame 11 is tightly connected to the foundation or frame of the equipment by bolts or other fastening devices to ensure that the cyclone dust collector 2 can be firmly fixed in the designated position and will not be displaced or tipped over due to external factors. Secondly, for the pulse dust collector 3, a support frame 10 is set at its bottom. The design of the support frame 10 is similar to that of the fixing frame 11, but may be adjusted according to its shape, weight and installation position. The main function of the support frame 10 is to disperse the weight of the pulse dust collector 3, reduce the local pressure on the foundation or frame of the equipment, and prevent the dust collector from tilting or deforming due to uneven weight. The support frame 10 is also made of a sturdy metal material and is fixed to the foundation or frame of the equipment through a reliable connection method. The choice of these two support solutions depends on the specific application scenario and equipment layout requirements. In some cases, it may only be necessary to provide support for one of the dust collectors, while in other cases, it may be necessary to set up support structures for both. Whether it is the fixed frame 11 or the support frame 10, their main purpose is to ensure that the dust collector can operate stably and reliably, thereby improving the performance and life of the entire sludge drying equipment.

[0035] It's worth noting that the curing room assembly 1, the cyclone dust collector 2, and the pulse dust collector 3 are sequentially spaced along the first direction. This layout has several significant advantages. First, it ensures that the dust-laden gas passes through these three components sequentially according to a predetermined process, achieving gradual dust removal and purification. The dust-laden gas generated in the curing room assembly 1 first enters the cyclone dust collector 2, where centrifugal force separates most of the heavier dust particles. Subsequently, the gas, having undergone preliminary dust removal, enters the pulse dust collector 3, where high-pressure pulse jets further remove remaining fine dust particles. Secondly, this sequential, spaced layout helps optimize the overall structure of the equipment. The spacing between the components can be adjusted according to actual needs to ensure smooth gas flow and maximize dust removal effectiveness. This layout also facilitates equipment installation, maintenance, and overhaul. Furthermore, the design concept of graded dust removal embodies the rational use of resources and environmental protection. By gradually reducing the number and size of dust particles, energy consumption and emissions in subsequent processing can be reduced, thereby minimizing negative environmental impacts.

[0036] Preferably, at least two ash collection ports are provided at the bottom of the pulse dust collector 3. This design has several significant advantages. First, multiple ash collection ports can disperse the dust emission points, avoiding the problem of blockage or poor discharge caused by dust accumulation at a single ash collection port. By dispersing the discharge, it can be ensured that the dust can be discharged from the pulse dust collector 3 more smoothly and evenly, thereby improving the overall dust removal efficiency. Secondly, multiple ash collection ports are also convenient for connection with subsequent dust treatment equipment or collection systems. According to different process requirements and site layouts, users can selectively connect one or more ash collection ports to achieve flexible dust processing and collection. This flexibility not only improves the adaptability of the equipment, but also reduces the risk of environmental pollution caused by improper dust handling. In addition, the design of multiple ash collection ports also helps to improve the stability and reliability of the pulse dust collector 3. By dispersing the dust emission points, the impact and wear on the bottom structure of the dust collector can be reduced, thereby extending the service life of the equipment. At the same time, multiple ash collection ports can also reduce the pressure fluctuations inside the dust collector to a certain extent, thereby improving the operating stability of the equipment.

[0037] It is worth mentioning that the spray assembly includes an annular water pipe arranged around the upper part of the inner wall of the cyclone dust collector 2, and a water outlet is provided below the annular water pipe, the water outlet is in contact with the inner wall of the cyclone dust collector 2, and the annular water pipe can be connected to an external water supply device through a pipeline. The annular water pipe surrounds the upper part of the inner wall of the cyclone dust collector 2 and can evenly spray water mist into the entire internal space of the dust collector. This uniform spraying method helps to increase the contact area between the water mist and the dust-laden gas, thereby improving the dust removal efficiency. A water outlet is provided below the annular water pipe, which is in contact with the inner wall of the cyclone dust collector 2. This design ensures that the water mist can be directly sprayed onto the inner wall of the dust collector, forming a moist film. This film can not only absorb and fix some dust particles to prevent them from being re-entrained by the airflow, but also reduce the adhesion of dust by increasing the wetness of the inner wall, facilitating subsequent cleaning work. In addition, the annular water pipe is also connected to an external water supply device through a pipeline. This connection method enables the spray assembly to obtain the required water source continuously and stably, ensuring the continuity and stability of the spray effect. Users can adjust the flow rate and pressure of the water supply equipment according to actual needs to achieve the best dust removal effect.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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 sludge drying equipment, characterized in that, include: A baking room assembly (1), a cyclone dust collector (2), a pulse dust collector (3), a first connecting pipe (4), a second connecting pipe (5) and a third connecting pipe (6); an air inlet and an air outlet are provided on the baking room assembly (1); the input end of the first connecting pipe (4) is connected to the air outlet, the output end of the first connecting pipe (4) is connected to the cyclone dust collector (2), the second connecting pipe (5) is connected to the cyclone dust collector (2) and the pulse dust collector (3), the input end of the third connecting pipe (6) is connected to the pulse dust collector (3), and the output end of the third connecting pipe (6) is connected to the air inlet; a spray assembly is provided in the cyclone dust collector (2), and the spray assembly sprays water toward the inner wall of the cyclone dust collector (2), so that the inner wall of the cyclone dust collector (2) is always in a wet state.

2. The sludge drying equipment according to claim 1, characterized in that: The second connecting pipe (5) comprises a first end portion and a second end portion, wherein the first end portion is connected to the top outlet of the cyclone dust collector (2) through a first volute member (7), and the second end portion is connected to the pulse dust collector (3).

3. The sludge drying equipment according to claim 2, characterized in that: The second end is connected to the inlet of the first side surface (301) of the pulse dust collector (3) through a horn member (8).

4. The sludge drying equipment according to claim 3, characterized in that: The input end of the third connecting pipe (6) is connected to the outlet of the second side surface (302) of the pulse dust collector (3), and the second side surface (302) and the first side surface (301) are two adjacent side surfaces.

5. The sludge drying equipment according to claim 4, characterized in that: The input end of the third connecting pipe (6) is connected to the outlet of the second side surface (302) of the pulse dust collector (3) through a second volute (9).

6. The sludge drying equipment according to any one of claims 1 to 5, characterized in that: It also includes an electric cabinet (12), the top of which extends upward to form a support bar (13), and the support bar (13) is connected to the bottom or side of the third connecting pipe (6).

7. The sludge drying equipment according to any one of claims 1 to 5, characterized in that: A fixing frame (11) is provided at the bottom of the cyclone dust collector (2); and / or a supporting frame (10) is provided at the bottom of the pulse dust collector (3).

8. The sludge drying equipment according to any one of claims 1 to 5, characterized in that: The baking room assembly (1), the cyclone dust collector (2) and the pulse dust collector (3) are sequentially arranged at intervals along a first direction.

9. The sludge drying equipment according to any one of claims 1 to 5, characterized in that: The bottom of the pulse dust collector (3) is provided with at least two ash collection ports.

10. The sludge drying equipment according to any one of claims 1 to 5, characterized in that: The spray assembly comprises an annular water pipe arranged around the upper portion of the inner wall of the cyclone dust collector (2), a water outlet is provided below the annular water pipe, and the annular water pipe can be connected to an external water supply device through a pipeline.

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