Anti-bridging device for sludge bin

Abstract

The utility model discloses an anti-bridging device for a sludge bin, and belongs to the technical field of sludge solid waste treatment. The device comprises a stock bin, an arch breaking mechanism is arranged in the stock bin, the arch breaking mechanism comprises a rotating shaft and a scraping plate, and one end of the arch breaking mechanism is connected with a driving device; the driving device drives the arch breaking mechanism to do reciprocating pushing, so that the scraping plate is driven to rotate along the rotating shaft, materials are pushed to the discharging port of the stock bin, and bridging is avoided. The arch breaking mechanism is arranged in the stock bin, the arch breaking mechanism is driven by the driving device to move so that materials in the stock bin can be smoothly discharged, the bridging situation of the materials in the stock bin is avoided, the angle of the bottom of the hopper is reduced, the space utilization rate of the stock bin is improved, the application range is wide, and the arch breaking device can be used for stock bins of various specifications.

Description

Technical Field

[0001] The utility model belongs to the technical field of sludge solid waste treatment, and particularly relates to a bridging prevention device for a sludge silo. Background Art

[0002] Sludge treatment is a process of reducing, stabilizing and harmlessly treating sludge. For modern sewage treatment plants, the treatment and disposal of sludge have become the most complex and costly part of the operation of the sewage treatment system.

[0003] During the sludge dewatering process, the sludge needs to be transferred and stored using a sludge silo. The sludge silo is an indispensable equipment in sludge disposal. The physical properties of sludge with different water contents are quite different. When the water content of sludge is greater than 80%, the sludge still has a certain fluidity; when the water content of sludge is less than 80%, the sludge is in a soft state and has no fluidity. During the process of transporting sludge with a water content below 80%, phenomena such as bridging and blockage may occur to the sludge.

[0004] Therefore, currently, the bottom of the existing sludge silo is usually designed with a large cone angle (usually greater than 60°) and equipped with a rotary plow type arch breaker or a flat bottom and equipped with a hydraulic slide. However, the design height of the plow type arch breaker is relatively large, and the space utilization rate is not high; and bridging may still form above the rotation range of the arch breaker. The design of the hydraulic slide has many supporting devices and a large investment, and is not suitable for small silos. Content of the Utility Model

[0005] Aiming at the problems mentioned in the above background art that the design height of the existing plow type arch breaker equipped in the sludge silo is relatively large, the space utilization rate is low, and bridging is likely to form, the utility model provides a bridging prevention device for a sludge silo, which can reduce the angle of the bottom of the hopper, improve the space utilization rate of the silo, and reduce the cost.

[0006] Technical Solution: To solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0007] A bridging prevention device for a sludge silo includes a silo, an arch breaking mechanism is arranged in the silo, the arch breaking mechanism includes a rotating shaft and a scraper, and one end of the arch breaking mechanism is connected with a driving device; the driving device drives the arch breaking mechanism to make a reciprocating push, thereby driving the scraper to rotate along the rotating shaft, so as to push the material towards the silo discharge port and prevent bridging from forming.

[0008] Preferably, the arch breaking mechanism further includes a connecting rod and a frame; the frame is arranged in the silo, one end of the connecting rod is connected with the frame, and the other end penetrates through the silo and is connected with the driving device.

[0009] Preferably, a pressing block is arranged at the inner bottom of the silo to limit the frame through the pressing block.

[0010] Preferably, the rotating shaft is disposed through the frame, and the scraper is disposed within the frame and movably connected to the rotating shaft.

[0011] Preferably, the cross-section of the scraper is triangular, and the number of scrapers is multiple.

[0012] Preferably, the driving device is an electric, hydraulic or pneumatic push rod.

[0013] Preferably, the frame is provided with a connecting pin, a connecting pin mounting seat and a transverse support of the frame; the connecting pin mounting seat is connected to the frame, one end of the connecting pin is connected to the connecting pin mounting seat, and the other end is connected to the transverse support of the frame.

[0014] Advantageous effects: Compared with the prior art, the present utility model has the following advantages:

[0015] (1) The driving device drives the arch-breaking mechanism to move, so as to smoothly discharge the materials in the silo, avoid the bridging of the materials in the silo, reduce the angle of the bottom of the hopper, improve the space utilization rate of the silo, and has a wide range of applications, and can be used for silos of various specifications.

[0016] (2) In the present utility model, an arch-breaking mechanism is disposed in the hopper, and a driving device is disposed outside the hopper. When the driving device drives the arch-breaking mechanism to move upward, the scraper rotates in the a direction under the action of gravity and material pressure, and moves closely along the bottom plate of the silo.

[0017] When the driving device drives the arch-breaking mechanism to move downward, the scraper rotates in the b direction, the scraper pierces into the material, so that the scraper rotates along the rotating shaft. When rotating to a certain angle, the scraper is stuck with the bottom of the silo, and the scraper cannot continue to rotate. The scraper continues to move downward at this angle, thereby pushing the material towards the silo discharge port, avoiding the formation of a bridge in the silo and causing the blockage of the material output. After running in place, a cycle is completed, and so on, so that the material is smoothly taken out. Description of the Drawings

[0018] Figure 1 is a schematic structural view of the driving device of the anti-bridging device for the sludge silo of the present utility model moving upward;

[0019] Figure 2 is a schematic structural view of the driving device of the anti-bridging device for the sludge silo of the present utility model moving downward;

[0020] Figure 3 is a front sectional view of the arch-breaking mechanism of the anti-bridging device for the sludge silo of the present utility model;

[0021] Figure 4It is a side view of the driving device of the anti-bridging device for the sludge silo of the present utility model;

[0022] Figure 5 It is a top view of the anti-bridging device for the sludge silo of the present utility model;

[0023] Figure 6 Is Figure 2 The enlarged view of part A in Specific embodiments

[0024] The following combines specific embodiments to further clarify the present utility model. The embodiments are implemented on the premise of the technical solution of the present utility model. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model.

[0025] As Figures 1-5 As shown, the anti-bridging device for the sludge silo provided in this embodiment mainly includes a silo 6, a driving device 1 and an arch-breaking mechanism; the arch-breaking mechanism is arranged at the inner bottom of the silo 6, and the driving device 1 drives the arch-breaking mechanism to make reciprocating pushes, thereby driving the scraper to rotate along the rotating shaft 31, so as to push the material towards the discharge port of the silo 6 and avoid bridging.

[0026] As Figure 1 、 3 As shown, the arch-breaking mechanism includes a connecting rod 2, a frame 3 and a scraper 4; the frame 3 is a component that integrates various components; the frame 3 is arranged inside the silo 6; the connecting rod 2 is a component that transmits the power of the driving device 1 to the entire arch-breaking mechanism; one end of the connecting rod 2 is connected to the frame 3, and the other end passes through the silo 6 and is connected to the driving device 1; a rotating shaft 31 is penetrated through the frame 3, and the direction of the axis of the rotating shaft 31 is perpendicular to the direction of the connecting rod 2; the scraper 4 is a component that pushes the material towards the discharge port; the scraper 4 is arranged inside the frame 3 and rotates around the rotating shaft 31 and is movably connected to the rotating shaft 31.

[0027] A pressing block 5 is fixedly connected to the bottom of the silo 6 or the wall of the silo 6, and the pressing block 5 is used to limit the up and down displacement of the frame 3 to ensure that the arch-breaking mechanism runs closely against the bottom of the silo 6.

[0028] In this embodiment, two rotating shafts 31 are arranged inside one frame 3, one rotating shaft 31 is connected to one scraper 4, and the cross section of the scraper 4 is a triangle with an obtuse angle, and the length of the scraper 4 is adjusted according to the size of the silo 6.

[0029] The driving device 1 provides power for the whole set of devices, and any one of electric, hydraulic or pneumatic is selected. In this embodiment, the driving device 1 is an electric push rod.

[0030] In this embodiment, the driving device 1 is located outside the silo 6, and the driving device 1 is connected to the connecting rod 2 through a flange.

[0031] A link pin 32, a link pin mounting seat 33, a lateral support 34 of the frame and a fixing assembly 35 are further provided on the frame 3; the link pin mounting seat 33 is connected to the frame 3, one end of the link pin 32 is connected to the link pin mounting seat 33, and the other end is connected to the lateral support 34 of the frame.

[0032] In this embodiment, the link pin mounting seat 33 is welded to the frame 3, and the fixing assembly 35 is located on one side of the scraper 4. By providing the fixing assembly 35, the scraper 4 is prevented from being stuck by sludge during operation.

[0033] As Figure 6 shown, when the driving device 1 drives the arch-breaking mechanism to move upward, the scraper 4 rotates in the direction of a under the action of gravity and material pressure, and moves closely along the bottom plate of the silo 6.

[0034] When the driving device 1 drives the arch-breaking mechanism to move downward, the scraper rotates in the direction of b, the scraper 4 pierces into the material, so that the scraper 4 rotates along the rotating shaft 31. When rotating to a certain angle, the scraper 4 is stuck with the bottom of the silo 6, and the scraper 4 cannot continue to rotate. The scraper 4 continues to move downward at this angle, thereby pushing the material towards the discharge port of the silo 6, preventing bridging from forming in the silo 6 and causing blockage of material output. After running in place, a cycle is completed, and so on to smoothly discharge the material.

[0035] The working principle or usage process of the present utility model: First, start the driving device 1. When the driving device 1 drives the arch-breaking mechanism to move upward, the scraper 4 moves closely along the bottom plate of the silo 6 under the action of gravity and material pressure. At this time, the forward direction of the scraper 4 is an acute angle, and it can move in the material with less resistance.

[0036] When the driving device 1 drives the arch-breaking mechanism to move downward, the scraper 4 pierces into the material, so that the scraper 4 rotates along the rotating shaft 31. When rotating to a certain angle, the scraper 4 is stuck with the bottom of the silo 6, and the scraper 4 cannot continue to rotate. The scraper 4 continues to move downward at this angle, driving the material to move downward. After running in place, a cycle is completed, and so on to smoothly discharge the material.

[0037] The present utility model realizes the smooth discharge of the material in the silo 6 by arranging an arch-breaking mechanism inside the silo 6 and driving the arch-breaking mechanism to move through the driving device, preventing bridging of the material in the silo 6, reducing the angle of the bottom of the hopper, improving the space utilization rate of the silo 6, and having a wide range of applications. Silos 6 of various specifications can be used.

[0038] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A sludge silo anti-bridging device, comprising a silo (6), characterized in that: The silo (6) is provided with an arch-breaking mechanism, which comprises a rotating shaft (31) and a scraper (4), and one end of the arch-breaking mechanism is connected to a driving device (1); the driving device (1) drives the arch-breaking mechanism to move back and forth, thereby driving the scraper (4) to rotate along the rotating shaft (31), thereby pushing the material toward the discharge port of the silo (6) to avoid the formation of a bridge.

2. The sludge silo anti-bridging device according to claim 1 is characterized in that: The arch-breaking mechanism further comprises a connecting rod (2) and a frame (3); the frame (3) is arranged in the silo (6); one end of the connecting rod (2) is connected to the frame (3), and the other end passes through the silo (6) and is connected to the driving device (1).

3. The sludge silo anti-bridging device according to claim 1, characterized in that: A pressing block (5) is provided at the inner bottom of the silo (6), and the frame (3) is limited by the pressing block (5).

4. The sludge silo anti-bridging device according to claim 1, characterized in that: The rotating shaft (31) is arranged through the frame (3); the scraper (4) is arranged in the frame (3) and is movably connected to the rotating shaft (31).

5. The sludge silo anti-bridging device according to claim 1, characterized in that: The cross section of the scraper (4) is triangular, and there are multiple scrapers (4).

6. The sludge silo anti-bridging device according to claim 1, characterized in that: The driving device (1) is an electric, hydraulic or pneumatic push rod.

7. The sludge silo anti-bridging device according to claim 2, characterized in that: The frame (3) is provided with a linking pin (32), a linking pin mounting seat (33) and a frame transverse support (34); the linking pin mounting seat (33) is connected to the frame (3); one end of the linking pin (32) is connected to the linking pin mounting seat (33), and the other end is connected to the frame transverse support (34).

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