Sludge discharge hopper

Abstract

The utility model relates to a sludge unloading hopper belongs to sludge treatment field. Sludge unloading hopper hopper body, gate, drive mechanism, scraper and tow rope. Hopper body has the inlet end and the discharge end along the arrangement of gravity direction. The gate rotatably is established in the hopper body, and the gate has the closed position of closing inlet end and the open position of opening inlet end. Drive mechanism sets up in the hopper body, and is used for driving the gate switching between the closed position and the open position. The scraper is arranged in the hopper body, and is matched with the inner peripheral wall of the hopper body, the middle part of scraper is provided with the through -hole for the sludge to pass, along the gravity direction, the scraper has the first position close to inlet end and the second position away from inlet end, and the tow rope is connected with the gate and the scraper. Gravity drive scraper switches from the first position to the second position. The gate switches from the open position to the closed position to make the tow rope drive scraper switch from the second position to the first position.

Description

Technical Field

[0001] This utility model belongs to the field of sludge treatment, and specifically relates to a sludge unloading hopper. Background Technology

[0002] Sludge treatment is a process of reducing, stabilizing, and rendering harmless sludge through methods such as concentration, conditioning, dewatering, stabilization, drying, or incineration. In some sludge treatment processes, it is necessary to collect and transport the sludge after dewatering. Sludge discharge hoppers are mechanical devices that play this role in the transfer of sludge.

[0003] During the unloading process after the transfer is completed, some sludge adheres to the wall of the sludge unloading hopper and dries on the wall, which increases the difficulty of subsequent cleaning of the sludge unloading hopper. Utility Model Content

[0004] In view of the above problems, this application provides a sludge unloading hopper that can clean the inner wall of the sludge unloading hopper during the unloading process after the transfer is completed, thereby reducing the difficulty of cleaning the sludge unloading hopper.

[0005] This application provides a sludge unloading hopper, which includes a hopper body, a gate, a drive mechanism, a scraper, and a traction rope. The hopper body has an inlet end and an outlet end arranged along the direction of gravity. The gate is rotatably disposed in the hopper body and has a closed position for closing the inlet end and an open position for opening the inlet end. The drive mechanism is disposed in the hopper body and is used to drive the gate to switch between the closed position and the open position. The scraper is disposed in the hopper body and is adapted to the inner peripheral wall of the hopper body. The scraper has a through hole in the middle for sludge to pass through. Along the direction of gravity, the scraper has a first position close to the inlet end and a second position away from the inlet end. One end of the traction rope is connected to the gate, and the other end of the traction rope passes through the inlet end and is connected to the scraper. Gravity drives the scraper to switch from the first position to the second position. The gate switches from the open position to the closed position, so that the traction rope drives the scraper to switch from the second position to the first position.

[0006] Specifically, during sludge loading, the gate needs to close the feed end. This requires the drive mechanism to move the gate from the open position to the closed position, causing the traction rope to switch the scraper from the second position to the first position. During this process, the scraper cleans the area on the inner wall of the hopper body between the first and second positions to prevent sludge retention. During sludge unloading, the gate needs to open the feed end. This requires the drive mechanism to move the gate from the closed position to the open position, allowing the traction rope to no longer restrict the scraper to the first position. Under gravity, the scraper moves to the second position. With the first position above the sludge level, the scraper can clean the area on the inner wall of the hopper body between the first and second positions to prevent sludge retention.

[0007] In the above technical solution, during the process of opening and closing the discharge end of the gate, the scraper can move between the first position and the second position under the action of the traction rope and gravity to clean the inner wall of the hopper body, thereby reducing the difficulty of subsequent cleaning of the inner wall of the hopper body.

[0008] In some embodiments, the hopper body includes a vertical section and a converging section arranged sequentially along the direction of gravity. The end of the vertical section away from the converging section is the feed end. The converging section has a first end and a second end. The cross-sectional area of ​​the first end is larger than that of the second end. The first end is connected to the vertical section, and the second end is the discharge end. The scraper is located within the vertical section.

[0009] In the above technical solution, the sludge is subjected to only upward static friction and vertical support on the inner wall of the vertical section. The resultant force of these two forces is upward, opposite to the direction of the sludge's gravity, which plays the role of "lifting" and "impeding" its fall. This makes it easier for the sludge to remain in the vertical section. Setting the scraper inside the vertical section can reduce the risk of sludge remaining in the vertical section.

[0010] In some embodiments, the hopper body further includes a guide portion that protrudes from the inner surface of the vertical section and extends along the direction of gravity. A guide groove is provided on the outer periphery of the scraper, and a portion of the guide portion is accommodated within the guide groove.

[0011] In the above technical solution, the risk of the scraper overturning during its movement along the direction of gravity is reduced by setting a guide part, and the structure is simple and easy to implement.

[0012] In some embodiments, the guide portions are multiple portions arranged circumferentially along the vertical section, and the guide grooves are arranged in a one-to-one correspondence with the guide portions.

[0013] In the above technical solution, by setting multiple guide parts at circumferential intervals along the vertical section, the stability of the scraper movement is further improved.

[0014] In some embodiments, the hopper body further includes a flanged portion. The flanged portion is disposed at the feed end and projected along the direction of gravity, with the orthographic projection of the flanged portion covering the orthographic projection of the scraper.

[0015] In the above technical solution, by covering the front projection of the flange with the front projection of the scraper, the risk of the scraper moving to the second position due to direct impact of sludge on the scraper located in the first position when it enters the hopper body from the feed end is reduced, thereby improving the reliability of the sludge unloading hopper.

[0016] In some embodiments, when the scraper is in the first position, the scraper abuts against the flange along the direction of gravity.

[0017] In the above technical solution, when the scraper is in the first position, the scraper abuts against the flanged part along the direction of gravity. On the one hand, this further reduces the risk that the scraper will move to the second position due to direct impact of sludge on the scraper in the first position when it enters the hopper body from the feed end; on the other hand, it reduces the risk that sludge between the scraper and the flanged part is difficult to clean.

[0018] In some embodiments, the end face of the scraper facing the flange is a guide surface, and the distance between the guide surface and the inner wall of the vertical section gradually increases along the direction from the feed end to the discharge end.

[0019] In the above technical solution, the guide surface can guide the sludge to move towards the through hole, thereby reducing the risk of sludge remaining on the scraper.

[0020] In some embodiments, the flange has a mounting hole through which one end of the traction rope passes and is connected to the scraper.

[0021] In the above technical solution, the traction rope is limited by the mounting hole, which is simple in structure and easy to implement.

[0022] In some embodiments, the driving mechanism is a hydraulic cylinder, the cylinder body of which is hinged to the hopper body, and the telescopic rod of which is hinged to the gate.

[0023] In the above technical solution, the drive mechanism is set as a hydraulic cylinder, which has a simple structure and is easy to maintain.

[0024] In some embodiments, there are two gates arranged along the width of the hopper body, and two traction ropes, one end of which is connected to the two gates respectively, and the other end of which is connected to both sides of the scraper in the width direction.

[0025] In the above technical solution, by setting two traction ropes to pull the scraper on both sides in the width direction, the risk of scraper tipping over is reduced and the reliability of the scraper is improved. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of the sludge unloading hopper provided in an embodiment of this utility model; Figure 2 A cross-sectional view of the sludge unloading hopper when the gate is open at the discharge end, provided in an embodiment of this utility model; Figure 3 This is a cross-sectional view of the sludge unloading hopper when the gate closes the discharge end, as provided in an embodiment of this utility model. Detailed Implementation

[0028] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0029] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0030] 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] Reference Figures 1-3This application provides a sludge unloading hopper 100, including a hopper body 10, a gate 20, a drive mechanism 30, a scraper 50, and a traction rope 40. The hopper body 10 has an inlet end 10A and an outlet end 10B arranged along the gravity direction X. The gate 20 is rotatably disposed on the hopper body 10, and the gate 20 has a closed position that closes the inlet end 10A and an open position that opens the inlet end 10A. The drive mechanism 30 is disposed on the hopper body 10 and is used to drive the gate 20 to switch between the closed position and the open position. A scraper 50 is disposed inside the hopper body 10 and adapted to the inner peripheral wall of the hopper body 10. A through hole for sludge to pass through is provided in the middle of the scraper 50. Along the direction of gravity X, the scraper 50 has a first position near the feed end 10A and a second position away from the feed end 10A. One end of the traction rope 40 is connected to the gate 20, and the other end of the traction rope 40 passes through the feed end 10A and is connected to the scraper 50. Gravity drives the scraper 50 to switch from the first position to the second position. The gate 20 switches from the open position to the closed position, so that the traction rope 40 drives the scraper 50 to switch from the second position to the first position.

[0033] Specifically, during the sludge loading process, the gate 20 needs to close the feed end 10A. This requires the drive mechanism 30 to move the gate 20 from the open position to the closed position, causing the traction rope 40 to drive the scraper 50 from the second position to the first position. During this process, the scraper 50 cleans the area of ​​the inner wall of the hopper body 10 between the first and second positions to prevent sludge retention. During the sludge unloading process, the gate 20 needs to open the feed end 10A. This requires the drive mechanism 30 to move the gate 20 from the closed position to the open position, causing the traction rope 40 to no longer restrict the scraper 50 to the first position. Under gravity, the scraper 50 moves to the second position. With the first position higher than the sludge level, the scraper 50 can clean the area of ​​the inner wall of the hopper body 10 between the first and second positions to prevent sludge retention.

[0034] In this technical solution, during the opening and closing of the discharge end 10B by the gate 20, the scraper 50 can move between the first and second positions under the action of the traction rope 40 and gravity to clean the inner wall of the hopper body 10, thereby reducing the difficulty of subsequent cleaning of the inner wall of the hopper body 10.

[0035] According to some embodiments of this application, the hopper body 10 includes a vertical section 11 and a converging section 12 arranged sequentially along the gravity direction X. The end of the vertical section 11 away from the converging section 12 is the feed end 10A. The converging section 12 has a first end and a second end. The cross-sectional area of ​​the first end is larger than that of the second end. The first end is connected to the vertical section 11, and the second end is the discharge end 10B. The scraper 50 is located inside the vertical section 11.

[0036] In this technical solution, on the inner wall of the vertical section 11, there is only an upward static friction force and a vertical supporting force on the sludge. The resultant force of these two forces is upward and opposite to the direction of gravity X of the sludge, which plays the role of "lifting" and "impeding" the sludge from falling. This makes it easier for the sludge to remain in the vertical section 11. Setting the scraper 50 inside the vertical section 11 can reduce the risk of sludge remaining in the vertical section 11.

[0037] According to some embodiments of this application, the hopper body 10 further includes a guide portion 13, which protrudes from the inner surface of the vertical section 11 and extends along the gravity direction X. A guide groove 51 is provided on the outer periphery of the scraper 50, and a portion of the guide portion 13 is accommodated in the guide groove 51.

[0038] In this technical solution, the risk of the scraper 50 overturning during its movement along the gravity direction X is reduced by setting the guide part 13. The structure is simple and easy to implement.

[0039] According to some embodiments of this application, the guide portion 13 is a plurality of portions arranged at circumferential intervals along the vertical segment 11, and the guide groove 51 is arranged in a one-to-one correspondence with the guide portion 13.

[0040] In this technical solution, by setting the guide section 13 as a plurality of sections spaced apart circumferentially along the vertical section 11, the stability of the scraper 50 movement is further improved.

[0041] According to some embodiments of this application, the hopper body 10 further includes a flanged portion 14. The flanged portion 14 is disposed at the feed end 10A, projected along the gravity direction X, and the orthographic projection of the flanged portion 14 covers the orthographic projection of the scraper 50.

[0042] In this technical solution, by covering the orthogonal projection of the flanged part 14 with the orthogonal projection of the scraper 50, the risk of the scraper 50 moving to the second position due to direct impact of the sludge on the scraper 50 located at the first position when it enters the hopper body 10 from the feed end 10A is reduced, thereby improving the reliability of the sludge discharge hopper 100.

[0043] According to some embodiments of this application, when the scraper 50 is in the first position, the scraper 50 abuts against the flange portion 14 along the gravity direction X.

[0044] In this technical solution, when the scraper 50 is in the first position, along the gravity direction X, the scraper 50 abuts against the flange 14. On the one hand, this further reduces the risk that the scraper 50 will move to the second position due to direct impact of sludge on the scraper 50 in the first position when it enters the hopper body 10 from the feed end 10A; on the other hand, it reduces the risk that sludge between the scraper 50 and the flange 14 is difficult to clean.

[0045] According to some embodiments of this application, the end face of the scraper 50 facing the flange portion 14 is a guide surface 52, and the distance between the guide surface 52 and the inner wall of the vertical section 11 gradually increases along the direction from the feed end 10A to the discharge end 10B.

[0046] In this technical solution, the guide surface 52 can guide the sludge to move in the direction of the through hole, thereby reducing the risk of sludge staying on the scraper 50.

[0047] According to some embodiments of this application, the flange 14 has a mounting hole, and one end of the traction rope 40 passes through the mounting hole and is connected to the scraper 50.

[0048] In this technical solution, the traction rope 40 is limited by the mounting hole, which is simple and easy to implement.

[0049] According to some embodiments of this application, the drive mechanism 30 is a hydraulic cylinder, the cylinder body of which is hinged to the hopper body 10, and the telescopic rod of which is hinged to the gate 20.

[0050] In this technical solution, the drive mechanism 30 is set as a hydraulic cylinder, which has a simple structure and is easy to maintain.

[0051] According to some embodiments of this application, there are two gates 20, which are arranged along the width direction of the hopper body 10. There are two traction ropes 40, one end of which is connected to the two gates 20 respectively, and the other end of which is connected to both sides of the scraper 50 in the width direction.

[0052] In this technical solution, by setting two traction ropes 40 to pull the scraper 50 on both sides in the width direction, the risk of the scraper 50 overturning is reduced and the reliability of the scraper 50 is improved.

[0053] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0054] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A sludge unloading hopper, characterized in that, include: The hopper body has an inlet end and an outlet end arranged along the direction of gravity; A gate is rotatably disposed on the hopper body, the gate having a closed position that closes the feed end and an open position that opens the feed end; A drive mechanism is disposed on the hopper body and is used to drive the gate to switch between the closed position and the open position; The sludge unloading hopper further includes a scraper and a traction rope. The scraper is disposed in the hopper body and is adapted to the inner peripheral wall of the hopper body. The scraper has a through hole in the middle for sludge to pass through. Along the direction of gravity, the scraper has a first position close to the feed end and a second position away from the feed end. One end of the traction rope is connected to the gate, and the other end of the traction rope passes through the feed end and is connected to the scraper. Gravity drives the scraper to switch from the first position to the second position; The gate switches from the open position to the closed position so that the traction rope drives the scraper to switch from the second position to the first position.

2. The sludge unloading hopper according to claim 1, characterized in that, The hopper body includes a vertical section and a converging section arranged sequentially along the direction of gravity. The end of the vertical section away from the converging section is the feed end. The converging section has a first end and a second end. The cross-sectional area of ​​the first end is larger than that of the second end. The first end is connected to the vertical section, and the second end is the discharge end. The scraper is located inside the vertical section.

3. A sludge unloading hopper according to claim 2, characterized in that, The hopper body also includes a guide portion, which protrudes from the inner surface of the vertical section and extends along the direction of gravity; The scraper is provided with a guide groove on its outer periphery, and part of the guide portion is accommodated in the guide groove.

4. A sludge unloading hopper according to claim 3, characterized in that, The guide portion consists of multiple portions spaced circumferentially along the vertical section, and the guide groove is provided in a one-to-one correspondence with the guide portion.

5. A sludge unloading hopper according to claim 3, characterized in that, The hopper body also includes: The flanged portion is disposed at the feed end and projected along the direction of gravity. The orthographic projection of the flanged portion covers the orthographic projection of the scraper.

6. A sludge unloading hopper according to claim 5, characterized in that, When the scraper is in the first position, it abuts against the flanged portion along the direction of gravity.

7. A sludge unloading hopper according to claim 6, characterized in that, The end face of the scraper facing the flanged part is a guide surface. Along the direction from the feed end to the discharge end, the distance between the guide surface and the inner wall of the vertical section gradually increases.

8. A sludge unloading hopper according to claim 7, characterized in that, The flanged portion has a mounting hole, and one end of the traction rope passes through the mounting hole and is connected to the scraper.

9. A sludge unloading hopper according to claim 1, characterized in that, The driving mechanism is a hydraulic cylinder, the cylinder body of which is hinged to the hopper body, and the telescopic rod of which is hinged to the gate.

10. A sludge unloading hopper according to any one of claims 1-9, characterized in that, There are two gates, which are arranged along the width of the hopper body. There are two traction ropes, one end of which is connected to the two gates respectively, and the other end of which is connected to the scraper on both sides in the width direction.

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