Chain conveyor for sludge and sludge pyrolysis system

Abstract

The embodiment of the present application provides an oil sludge chain plate conveyor and an oil sludge pyrolysis system. The oil sludge chain plate conveyor comprises a rack, a transmission mechanism and a chain plate mechanism. The transmission mechanism is arranged on the rack, the chain plate mechanism comprises a plurality of chain plates, each chain plate is arranged on the transmission mechanism, and each chain plate comprises a chain plate body and a lap joint part extending along one side of the chain plate body and towards another chain plate adjacent to the chain plate. The lap joint part of one chain plate abuts one side of the thickness direction of the chain plate body of the chain plate adjacent to the chain plate, and the side is arranged close to the transmission mechanism. The oil sludge chain plate conveyor avoids the problem of oil sludge seepage along the gap between adjacent chain plates through the cooperation between the lap joint part and the chain plate body. Therefore, the oil sludge chain plate conveyor according to the embodiment of the present application has the advantages of avoiding chain plate conveyor seepage, improving pyrolysis stability and pyrolysis efficiency.

Description

Technical Field

[0001] This invention relates to the field of sludge treatment technology, and more specifically to a chain conveyor for sludge and a sludge pyrolysis system having the chain conveyor for sludge. Background Technology

[0002] my country produces a substantial amount of oily sludge annually. Oily sludge is primarily composed of oil, mud, and water, and contains large amounts of toxic substances with foul odors, such as benzene compounds, phenols, anthracene, and pyrene. The composition of oily sludge is relatively complex; generally, it has high water and oil content and contains numerous harmful components. Indiscriminate discharge not only causes serious environmental pollution but also represents a waste of resources.

[0003] In related technologies, a corresponding chain conveyor is set up in the pyrolysis chamber. The chain conveyor adopts a chain plate structure. Because there are gaps between the chain plates, sludge containing abundant water and oil can easily flow out from the gaps in the chain plate support, resulting in large pyrolysis fluctuations and reduced pyrolysis efficiency. Summary of the Invention

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention provide a chain conveyor for oily sludge. This chain conveyor for oily sludge has the advantages of preventing leakage and improving pyrolysis stability and efficiency.

[0005] An embodiment of the present invention also proposes an oil sludge pyrolysis system.

[0006] The chain conveyor for sludge in this embodiment of the invention includes a frame, a transmission mechanism, and a chain mechanism.

[0007] The transmission mechanism is mounted on the frame, and the chain plate mechanism includes a plurality of chain plates. Each chain plate is mounted on the transmission mechanism. Each chain plate includes a chain plate body and an overlapping portion extending along one side of the chain plate body toward another chain plate adjacent to it. The overlapping portion of one chain plate abuts against one side of the chain plate body of the adjacent chain plate in the thickness direction. The side is located close to the transmission mechanism.

[0008] The chain conveyor for sludge in this embodiment of the invention divides each chain plate into a chain plate body and an overlapping portion. The overlapping portion abuts against the chain plate body on one side facing the adjacent chain plate body, thereby reducing the gap between adjacent chain plates and preventing sludge leakage along the gaps. This avoids large pyrolysis fluctuations and decreased pyrolysis efficiency caused by material leakage from the chain conveyor. Ultimately, this contributes to improved pyrolysis stability and efficiency.

[0009] Therefore, the chain conveyor for sludge in this embodiment of the invention has the advantages of avoiding leakage of the chain conveyor and improving pyrolysis stability and pyrolysis efficiency.

[0010] In some embodiments, the overlap portion includes a flow-suppressing section and a flow-guiding section. The flow-suppressing section is connected to the chain plate body, and the flow-guiding section is connected to the side of the flow-suppressing section opposite to the chain plate body. The flow-guiding section has a flow-guiding groove recessed towards the transmission mechanism to facilitate the removal of sludge flowing onto the overlap portion.

[0011] In some embodiments, the guide section includes a material flow section and a material storage section. The material flow section is connected to the flow suppression section, and the material storage section and the material flow section form the guide channel. The angle between the material flow section and the flow suppression section is 30°-60°.

[0012] In some embodiments, the flow suppression section includes a flow suppression main section and a transition section. The transition section is connected to the chain plate body and is inclined relative to the chain plate body toward the transmission mechanism. The flow suppression main section is connected between the flow guide section and the chain plate body.

[0013] In some embodiments, the overlapping portion further includes an abutting section, which is positioned at the same height as the flow guide section and the flow suppressing section on the side opposite to the flow guide section and the flow suppressing section, when two adjacent chain plates are at the same horizontal height.

[0014] In some embodiments, the chain conveyor for sludge further includes a flexible abutment sleeve, which is attached to the side of the flow-damping section away from the transmission mechanism, and the flexible abutment sleeve is provided with an anti-overflow protrusion.

[0015] In some embodiments, the overlap length between the chain plate body of one of the chain plates and the overlapping portion of the adjacent chain plate in the conveying direction of the chain plate conveyor is 35mm-50mm.

[0016] In some embodiments, the ratio of the length of the chain plate body to the length of the flow-damping section is 10-40.

[0017] In some embodiments, the width of the chain plate body is 1600mm-2000mm.

[0018] In some embodiments, the transmission mechanism includes a chain conveyor belt, a drive sprocket, and a driven sprocket. The drive sprocket and the driven sprocket are respectively disposed on both sides of the frame along its length. The chain conveyor belt is wound around the drive sprocket and the driven sprocket, and a plurality of chain plates are arranged on the chain conveyor belt.

[0019] In some embodiments, the chain conveyor belt includes a chain structure formed by multiple chain links, and both the driving sprocket and the driven sprocket have positioning recesses that correspond to the hinge points formed by adjacent chain links.

[0020] In some embodiments, the transmission mechanism further includes a tensioning wheel disposed below at least one of the driving sprocket and the driven sprocket, and the chain conveyor belt travels around the driving sprocket, the driven sprocket and the tensioning wheel.

[0021] The sludge pyrolysis system of this invention includes a pyrolysis chamber and a chain conveyor for sludge according to any one of the above-mentioned methods, wherein the chain conveyor for sludge is disposed in the pyrolysis chamber. Attached Figure Description

[0022] Figure 1 This is a side view of a chain conveyor for sludge according to an embodiment of the present invention.

[0023] Figure 2 yes Figure 1 A cross-sectional view along the centerline AA.

[0024] Figure 3 yes Figure 1 A cross-sectional view along line BB in the middle.

[0025] Figure 4 This is a top view of the chain conveyor for sludge according to an embodiment of the present invention.

[0026] Figure 5 This is a top view of the chain plate according to an embodiment of the present invention.

[0027] Figure 6 This is a diagram showing the fit between adjacent chain plates in an embodiment of the present invention.

[0028] Figure 7 This is a side view of the chain plate according to an embodiment of the present invention.

[0029] Figure 8 yes Figure 7 A partial view at point C.

[0030] Figure label:

[0031] 100-ton chain conveyor for sludge;

[0032] Rack (not shown);

[0033] Chain conveyor belt 21; chain link 211; drive sprocket 22; sprocket body 221; drive motor 222;

[0034] Driven sprocket 23; Positioning recess 231;

[0035] Chain plate 3; overlapping part 31; chain plate body 32;

[0036] Flow suppression section 311; Main flow section 3111; Transition section 3112;

[0037] Guide section 312; Material flow section 3121; Material storage section 3122; Contact section 313;

[0038] 4. Flexible sleeve for contact; 41. Anti-overflow protrusion. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0040] The following is for reference. Figures 1-8 The present invention describes an embodiment of a chain conveyor 100 for sludge and a sludge pyrolysis system.

[0041] The chain conveyor 100 for sludge in this embodiment of the invention includes a frame (not shown), a transmission mechanism, and a chain mechanism.

[0042] The transmission mechanism is mounted on the frame. The chain plate mechanism includes multiple chain plates 3, each chain plate 3 is mounted on the transmission mechanism, and each chain plate 3 includes a chain plate body 32 and an overlapping portion 31 extending along one side of the chain plate body 32 toward another adjacent chain plate 3. The overlapping portion 31 of one chain plate 3 is adjacent to the chain plate body 32 of the adjacent chain plate 3 on one side in the thickness direction (e.g., ...). Figure 6 The lower side shown in the diagram abuts against the transmission mechanism.

[0043] The chain conveyor 100 for sludge in this embodiment of the invention divides each chain plate into a chain plate body 32 and an overlapping portion 31. The overlapping portion 31 abuts against one side of the chain plate body 32 facing the adjacent chain plate 3, thereby reducing the gap between adjacent chain plates 3 and preventing sludge leakage along the gap between adjacent chain plates 3. This avoids the problems of large pyrolysis fluctuations and decreased pyrolysis efficiency caused by material leakage from the chain conveyor. Therefore, this chain conveyor 100 for sludge helps to improve the stability and efficiency of pyrolysis.

[0044] Therefore, the chain conveyor 100 for sludge in this embodiment of the invention has the advantages of avoiding leakage of the chain conveyor and improving pyrolysis stability and pyrolysis efficiency.

[0045] like Figures 6 to 8As shown, the overlapping portion 31 includes a flow-suppressing section 311 and a flow-guiding section 312. The flow-suppressing section 311 is connected to the chain plate body 32, and the flow-guiding section 312 is connected to the side of the flow-suppressing section 311 opposite to the chain plate body 32. The flow-guiding section 312 has a concave flow-guiding groove facing the transmission mechanism to facilitate the discharge of sludge flowing onto the overlapping portion 31. In other words, the flow-guiding section 312, the flow-suppressing section 311, and the chain plate body 32 are arranged sequentially along the arrangement direction of the plurality of chain plates 3.

[0046] The chain conveyor 100 for sludge in this embodiment of the invention divides the overlapping portion 31 into a flow-suppressing section 311 and a flow-guiding section 312. The flow-suppressing section 311 is connected to the chain plate body 32, and the flow-guiding section 312 is connected to the side of the flow-suppressing section 311 opposite to the chain plate body 32. The flowing sludge is guided through a guide groove in the guide section 312, which has a recessed side facing the transmission mechanism. This facilitates the smooth discharge of sludge flowing onto the overlapping portion 31, preventing direct leakage caused by unevenness at the contact surface between the flow-suppressing section 311 and the chain plate body 32. The chain conveyor 100 for sludge in this embodiment of the invention ensures that the sludge flowing to the flow-suppressing section 311 is guided through the guide groove without affecting the overall flatness of the chain plate 3. Therefore, the chain conveyor 100 for sludge further avoids leakage problems.

[0047] like Figures 6 to 8 As shown, the flow guide section 312 includes a material flow section 3121 and a material storage section 3122. The material flow section is connected to the flow suppression section 311. The material storage section 3122 and the material flow section 3121 form a flow guide channel. The angle between the material flow section 3121 and the flow suppression section 311 is 30°-60°.

[0048] The chain conveyor 100 for sludge in this embodiment of the invention forms a guide channel by dividing the material flow section 3121 and the material storage section 3122, with the material storage section 3122 and the material flow section 3121 forming a guide channel, and setting the included angle between the material flow section 3121 and the flow suppression section 311 to be 30°-60°. This chain conveyor can avoid the problem of sludge flowing onto the overlap 31 and getting stuck in the flow suppression section 311 due to the included angle being too small, thus affecting the overall flatness of the chain; and it can also avoid the problem of sludge flowing onto the flow suppression section 311 during outflow due to the included angle being too large.

[0049] For example, the included angle between the flow section 3121 and the flow suppression section 311 can be 30°, 35°, 40°, 45°, 50°, 55° or 60°.

[0050] like Figures 6 to 8As shown, the flow suppression section 311 includes a flow suppression main section 3111 and a transition section 3112. The transition section 3112 is connected to the chain plate body 32, and the transition section 3112 is inclined relative to the chain plate body 32 toward the transmission mechanism. The flow suppression main section 3111 is connected between the flow guide section 312 and the chain plate body 32.

[0051] The chain conveyor 100 for sludge in this embodiment of the invention divides the flow-suppressing section 311 into a flow-suppressing main section 3111 and a transition section 3112, and sets the transition section 3112 at an inclination relative to the chain conveyor body 32. This can provide good guidance for the coordination between adjacent chain plates and facilitate a smooth switching between the reversing position (e.g., the position in contact with the driving sprocket 22 and the driven sprocket 23) and the transport position.

[0052] like Figures 6 to 8 As shown, the overlapping part 31 also includes an abutting section 313. On the side opposite to the flow guiding section 312 and the flow suppressing section 311, when two adjacent chain plates are at the same horizontal height, the abutting section 313 and the flow suppressing section 311 are set at the same height.

[0053] The chain conveyor 100 for sludge in this embodiment of the invention, through the abutment section 313, can further overflow the liquid overflowing from the guide channel, which is equivalent to forming a double seal to prevent leakage. Therefore, this chain conveyor further avoids leakage problems.

[0054] like Figures 6 to 8 As shown, the chain conveyor 100 for sludge in this embodiment of the invention also includes abutting flexible sleeve 4, which is attached to the side of the flow suppression section 311 away from the transmission mechanism.

[0055] The chain conveyor 100 for sludge in this embodiment of the invention, by using a flexible sleeve 4 disposed on the side of the flow-suppressing section 311 away from the transmission mechanism, can further improve the sealing between adjacent chain plates, preventing sludge leakage between adjacent chain plates through gaps. This chain conveyor 100 for sludge further contributes to improving pyrolysis stability and pyrolysis efficiency.

[0056] Furthermore, such as Figures 6 to 8 As shown, the flexible sleeve 4 is provided with an anti-overflow protrusion 41.

[0057] The chain conveyor 100 for sludge in this embodiment of the invention, by providing anti-overflow protrusions 41 on the abutting flexible sleeve 4, can further improve the sealing between adjacent chain plates, thus further preventing sludge leakage through gaps. Furthermore, this chain conveyor 100 for sludge further enhances the advantages of improved pyrolysis stability and pyrolysis efficiency.

[0058] like Figure 6As shown, the overlap length between the chain plate body 32 of one chain plate and the overlapping part 31 of the adjacent chain plate in the conveying direction of the chain plate conveyor is 35mm-50mm; the ratio of the length of the chain plate body 32 to the length of the flow suppression section 311 is 10-40, and the width of the chain plate body 32 is 1600mm-2000mm.

[0059] The chain conveyor 100 for sludge in this embodiment of the invention sets the overlap length of the chain plate body 32 and the overlapping part 31 of the adjacent chain plate in the conveying direction of the chain conveyor to 35mm-50mm. This can avoid the problem of interference between the adjacent chain plate body 32 and the transmission mechanism when the overlap length is too large, and also avoid the problem of poor sealing effect when the overlap length is too small.

[0060] like Figures 1 to 4 As shown, the transmission mechanism includes a chain conveyor belt 21, a drive sprocket 22, and a driven sprocket 23. The drive sprocket 22 and the driven sprocket 23 are respectively arranged on both sides of the frame length direction. The chain conveyor belt 21 is wound around the drive sprocket 22 and the driven sprocket 23, and multiple chain plates are arranged on the chain conveyor belt 21.

[0061] The chain conveyor 100 for sludge in this embodiment of the invention divides the transmission mechanism into a chain conveyor belt 21, a driving sprocket 22, and a driven sprocket 23. Multiple chain plates are arranged on the chain conveyor belt 21, and the driving sprocket 22 and driven sprocket 23 are configured to cooperate. This chain conveyor 100 for sludge has the advantage of saving on drive components.

[0062] Specifically, during the conveying process, when the chain plate 3 moves to the driven sprocket 23, the opening of the guide groove on the overlapping part 31 will rotate from top to bottom. Therefore, the oil stored there flows out, so as to achieve the function of continuing to store oil during conveying.

[0063] Specifically, the driving sprocket 22 includes a sprocket body 221 and a drive motor 222. The drive motor 222 is connected to the sprocket body 221, and the chain conveyor belt 21 is sleeved on the sprocket body 221 and the driven sprocket 23.

[0064] Optionally, both the driving sprocket 22 and the driven sprocket 23 are welded from steel.

[0065] The driving sprocket 22 and the driven sprocket 23 are the same size and located at the same horizontal height.

[0066] like Figures 1 to 4 As shown, the chain conveyor belt 21 includes a chain structure formed by multiple chain links 211. Both the driving sprocket 22 and the driven sprocket 23 have positioning recesses 231, which correspond to the hinge points formed by adjacent chain links 211.

[0067] The chain conveyor 100 for sludge in this embodiment of the invention, through the chain structure formed by multiple chain links 211 and the positioning recesses 231 on the drive sprocket 22 and the driven sprocket 23, can prevent misalignment between the chain conveyor belt 21 and the drive sprocket 22 due to slippage.

[0068] Furthermore, the chain conveyor belt 21 is provided with positioning holes, and the chain body 32 is provided with positioning protrusions, which open and close within the positioning holes.

[0069] Furthermore, there are multiple positioning protrusions and positioning holes, with the multiple positioning protrusions arranged at intervals and the multiple positioning protrusions arranged one-to-one in the multiple positioning holes.

[0070] The transmission mechanism also includes a tensioning wheel, which is located below at least one of the driving sprocket 22 and the driven sprocket 23. The chain conveyor belt 21 runs around the driving sprocket 22, the driven sprocket 23 and the tensioning wheel.

[0071] The chain conveyor 100 for sludge in this embodiment of the invention can tighten the chain conveyor belt 21 by setting a tensioning wheel, so as to prevent the chain conveyor belt 21 from becoming loose and causing interference between adjacent chain plates.

[0072] The sludge pyrolysis system of this invention includes a pyrolysis chamber and a chain conveyor 100 for sludge according to any one of the above claims, wherein the chain conveyor 100 for sludge is disposed in the pyrolysis chamber.

[0073] Therefore, the sludge pyrolysis system of the present invention has the advantages of avoiding leakage problems of chain conveyor and improving pyrolysis stability and pyrolysis efficiency.

[0074] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0075] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0076] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0077] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0078] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0079] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A chain conveyor for oily sludge, characterized in that, include: A frame and a transmission mechanism, wherein the transmission mechanism is mounted on the frame; A chain plate mechanism, comprising a plurality of chain plates, each chain plate being disposed on the transmission mechanism, each chain plate comprising a chain plate body and an overlapping portion extending along one side of the chain plate body toward an adjacent chain plate, wherein the overlapping portion of one chain plate abuts against one side of the chain plate body of the adjacent chain plate in the thickness direction, the side being disposed close to the transmission mechanism; The overlapping section includes a flow-suppressing section, a flow-guiding section, and an abutting section. The flow-suppressing section is connected to the chain plate body, and the flow-guiding section is connected to the side of the flow-suppressing section opposite to the chain plate body. The flow-guiding section has a flow-guiding groove recessed towards the transmission mechanism to facilitate the discharge of sludge flowing onto the overlapping section. The abutting section is located on the side of the flow-guiding section opposite to the flow-suppressing section. When two adjacent chain plates are at the same horizontal height, the abutting section and the flow-suppressing section are set at the same height, and the upper surface of the abutting section is in contact with the chain plate body of the adjacent chain plate. The flow guiding section includes a material flowing section and a material storage section. The material flowing section is connected to the flow suppressing section. The material storage section and the material flowing section form the flow guiding channel. The angle between the material flowing section and the flow suppressing section is 30°-60°. The flow suppression section includes a flow suppression main section and a transition section. The transition section is connected to the chain plate body and is inclined relative to the chain plate body towards the transmission mechanism. The flow suppression main section is connected between the flow guide section and the chain plate body.

2. The chain conveyor for sludge according to claim 1, characterized in that, It also includes a flexible abutment sleeve, which is attached to the side of the flow suppression section away from the transmission mechanism, and the flexible abutment sleeve is provided with an anti-overflow protrusion.

3. The chain conveyor for sludge according to claim 1, characterized in that, The overlap length between the chain plate body of one of the chain plates and the overlapping portion of the adjacent chain plate in the conveying direction of the chain plate conveyor is 35mm-50mm; and / or, the ratio of the length of the chain plate body to the length of the flow suppression section is 10-40; and / or, the width of the chain plate body is 1600mm-2000mm.

4. The chain conveyor for sludge according to claim 1, characterized in that, The transmission mechanism includes a chain conveyor belt, a drive sprocket, and a driven sprocket. The drive sprocket and the driven sprocket are respectively located on both sides of the frame along its length. The chain conveyor belt is wound around the drive sprocket and the driven sprocket, and a plurality of chain plates are arranged on the chain conveyor belt.

5. The chain conveyor for sludge according to claim 4, characterized in that, The chain conveyor belt includes a chain structure formed by multiple chain links. Both the driving sprocket and the driven sprocket have positioning recesses, which correspond to the hinge points formed by adjacent chain links.

6. The chain conveyor for sludge according to claim 4, characterized in that, The transmission mechanism further includes a tensioning wheel, which is disposed below at least one of the driving sprocket and the driven sprocket, and the chain conveyor belt winds around the driving sprocket, the driven sprocket and the tensioning wheel.

7. An oil sludge pyrolysis system, characterized in that, It includes a pyrolysis chamber and a chain conveyor for sludge according to any one of claims 1-6, wherein the chain conveyor for sludge is disposed within the pyrolysis chamber.

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