Gravity type self-sealing door for silo

Abstract

The utility model discloses a gravity type self -sealing door for stock bin belongs to stock bin feeding technical field. The device includes gravity self -sealing mechanism, unloading pipe dust suppression device, and gravity self -sealing mechanism includes frame structure, counterweight support, rotating subassembly, rotation stop, pole lever. Frame structure is the square frame structure that four boards vertical connection constitutes, and counterweight support is fixed on frame structure, and rotating subassembly includes counterweight strip, pivot, apron, and is fixed on frame structure long side upper along. Counterweight strip is long strip, and is placed on the top of counterweight support, and counterweight strip and apron are fixed on frame structure through pivot connection, and are equipped with rotation stop in the central position of apron. The unloading pipe dust suppression device includes trapezoidal connection frame, fast insertion curtain assembly, and is fixed on unloading pipe and moves with vehicle. The utility model breaks through the traditional apron manual switch mode of stock bin, realizes the automatic switch of stock bin door in the process of unloading and the local closure of unloading space, reduces the labor intensity, and effectively reduces the dust raising in the process of unloading.

Description

Technical Field

[0001] This utility model relates to a gravity-type self-sealing door for a silo, belonging to the field of silo feeding technology. Background Technology

[0002] During the charging process of the AOD and converter silos in the North Zone, the silo covers must be opened manually first. This results in frequent charging, high labor intensity, and a situation where the silo doors cannot be closed promptly after charging. Furthermore, due to the different silo elevations, there is a significant gap between the unloading chute opening and the silo opening, causing dust pollution during unloading. This dust pollution is even more pronounced in some through-silo structures (two silos connected internally), creating a poor working environment, impacting occupational health, and accelerating equipment deterioration. Utility Model Content

[0003] To reduce the labor intensity of manual operations and solve the dust problem during the feeding process caused by the inability of the silo door to close in time and the large gap between the unloading chute and the silo opening, this utility model provides a gravity-type self-sealing door for silos.

[0004] This invention breaks through the traditional manual opening and closing method of silo covers. It adopts the lever principle and uses the weight of the counterweight and the material to realize the automatic opening and closing of the silo door and the self-sealing during material feeding, which reduces the labor intensity of personnel and effectively improves the dust phenomenon.

[0005] The technical solution adopted in this utility model is:

[0006] A gravity-type self-sealing door for a silo includes a gravity-type self-sealing mechanism for the discharge port and a dust suppression device for the discharge pipe. The gravity-type self-sealing mechanism includes a frame structure, a counterweight support, a rotating assembly, a rotating stop, and a lever. The gravity-type self-sealing mechanism is fixedly installed at the center of the silo opening. The frame structure is a square frame structure composed of four vertically connected plates. The counterweight support is fixed to the frame structure. The rotating assembly includes a counterweight bar, a rotating shaft, and a cover plate, which is fixed to the long edge of the frame structure. The counterweight bar is long and placed above the counterweight support. The counterweight bar and the cover plate are connected and fixed to the frame structure via the rotating shaft. A rotating stop is provided at the center of the cover plate. The rotating stop is a flat steel bar with both ends fixed to the frame structure. The lever is a rod with both ends bent outwards and protruding. The lever is installed on the outer wall of the discharge pipe.

[0007] The dust suppression device for the unloading pipe includes a trapezoidal connecting frame and a quick-connect curtain assembly, which is fixed on the unloading pipe and moves with the vehicle; the quick-connect curtain assembly includes a curtain component and a suspension rod; the curtain component is suspended on the slot of the trapezoidal connecting frame and fixed at both ends; after assembly, it is fixed at both ends of the frame structure.

[0008] Furthermore, the counterweight support is fixed to the side of the frame structure by welding; the counterweight bar and cover plate are welded and fixed to the connecting sleeve, and the rotating shaft is placed inside the connecting sleeve; furthermore, the connecting sleeve passes through the rotating shaft, and the two ends of the rotating shaft are fixed to the upper edge of the short side of the frame structure. The rotating shaft plays a fixing role, and under the action of gravity, the sleeve drives the counterweight bar and cover plate to rotate.

[0009] Furthermore, the cover plate is a split cover plate, consisting of two symmetrical cover plates, which rotate downwards during unloading. Correspondingly, counterweight supports, counterweight strips, and rotating shafts are provided on both sides of the short side of the frame structure.

[0010] Furthermore, the frame structure is the supporting frame of the gravity self-sealing door integrated device for the silo of this utility model. The rotating shaft is fixed at the upper end of the frame structure. The two sides of the frame structure are respectively provided with counterweight support. The unloading process takes place in the space enclosed by the frame. The counterweight strips on both sides flip up and lean against the unloading pipe, forming a closed space with the front and rear curtains.

[0011] Furthermore, the slot of the trapezoidal connecting frame is located at the upper end of the frame structure of the gravity self-sealing mechanism.

[0012] The operation mode of this utility model is as follows: When unloading material through the unloading pipe, the self-sealing door opens under the gravity of the material above, and the cover plate moves from the horizontal position to the vertical position, opening the hopper door. At this time, the counterweight bar is lifted up and leans against both sides of the unloading pipe to prevent the cover plate from flipping up and scattering the material under the gravity of the counterweight bar when unloading is about to end. After unloading, when the unloading vehicle moves, the lever moves the counterweight bar to the tilt angle, so that the cover plate automatically closes under the gravity of the counterweight bar. After unloading is completed, the cover plate returns to the horizontal position under the action of the counterweight bar. When the cover plate rotates to the horizontal position, the rotation stop provides the function of limiting and sealing.

[0013] The gravity-type self-sealing door for silos provided by this utility model offers the following advantages:

[0014] (1) This utility model breaks through the traditional manual opening and closing method of the silo cover. By designing and installing a gravity self-sealing mechanism and a dust suppression device for the unloading pipe at the silo opening, the automatic opening and closing of the silo door and the partial sealing of the unloading space are realized during the unloading process. This changes the traditional manual opening and closing operation method, reduces labor intensity and effectively reduces dust during the unloading process.

[0015] (2) By adjusting the counterweight structure and material, the unloading requirements under complex environments and different materials can be met; by adopting the lever principle and quick-connect design, the weight of the counterweight and the material is used to realize the automatic opening and closing of the hopper door and the self-sealing during feeding.

[0016] (3) The quick-connect curtain assembly design enables the rapid replacement of vulnerable parts, making maintenance simple and quick, reducing the labor intensity of personnel while effectively improving dust pollution.

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 Three-view diagram of the gravity-type self-sealing door for silos of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the self-sealing door rotatable component in this utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the quick-connect curtain assembly in this utility model;

[0021] Figure 4 This is a schematic diagram of the curtain component for the unloading pipe of this utility model.

[0022] In the diagram: 1. Hopper opening; 2. Counterweight support; 3. Counterweight bar; 4. Rotating shaft; 5. Discharge pipe; 6. Cover plate; 7. Frame structure; 8. Curtain component; 9. Rotation stop; 10. Lever; 11. Trapezoidal connecting frame; 12. Suspension rod. Detailed Implementation

[0023] Example

[0024] like Figures 1-4 As shown, a gravity-type self-sealing door for a silo includes a gravity-type self-sealing mechanism for the discharge port and a dust suppression device for the discharge pipe. The gravity-type self-sealing mechanism includes a frame structure 7, a counterweight support 2, a rotating assembly, a rotating stop 9, and a lever 10. The gravity-type self-sealing mechanism is fixedly installed at the center of the silo opening 1. The frame structure 7 is a square frame structure composed of four vertically connected plates. The counterweight support 2 is fixed on the frame structure 7. The rotating assembly includes a counterweight bar 3, a rotating shaft 4, and a cover plate 6, which is fixed to the upper edge of the long side of the frame structure. The counterweight bar 3 is long and narrow. The counterweight 3 is placed above the counterweight support 2, and the cover plate 6 is connected and fixed to the frame structure via a pivot 4. The cover plate 6 can rotate along the pivot. When unloading material through the unloading pipe, the cover plate 6 moves from a horizontal position to a vertical position under the gravity of the material above, and the hopper door opens. After unloading, the cover plate 6 returns to the horizontal position under the action of the counterweight 3. A rotation stop 9 is provided at the center of the cover plate 6. The rotation stop 9 is a flat steel bar fixed at both ends to the frame structure. When the cover plate 6 rotates to the horizontal position, it provides a limiting and sealing function. The lever 10 has the structure of a rod with protruding ends bent outwards. The lever 10 is installed on the outer wall of the unloading pipe. After unloading, when the unloading vehicle moves, the lever 10 moves the counterweight from the vertical direction to an inclined angle, so that the cover plate automatically closes under the gravity of the counterweight.

[0025] Figure 2The diagram shows the structure of the self-sealing door's rotatable component; the dotted line indicates the position of the cover plate 6 in its open state.

[0026] Furthermore, the counterweight support 2 is fixed to the side of the frame structure 7 by welding. The counterweight bar 3 and the cover plate 6 are welded and fixed to the connecting sleeve, and the rotating shaft 4 is placed inside the connecting sleeve; furthermore, the connecting sleeve passes through the rotating shaft 4, and the two ends of the rotating shaft 4 are fixed to the upper edge of the short side of the frame structure 7. The rotating shaft plays a fixing role, and under the action of gravity, the sleeve drives the counterweight bar 3 and the cover plate 6 to rotate.

[0027] Furthermore, the cover plate 6 is a split cover plate, consisting of two symmetrical cover plates, which rotate downwards during unloading. Correspondingly, the counterweight support 2, counterweight bar 3, and rotating shaft 4 are provided on both sides of the short side of the frame structure 7.

[0028] The frame structure 7 is the supporting frame of the gravity self-sealing door integrated device for the silo of this utility model. The rotating shaft 4 is fixed at the upper end of the frame structure 7. The two sides of the frame structure 7 are respectively provided with counterweight supports 2. The unloading process takes place in the space enclosed by the frame. The counterweight bars on both sides flip up and lean against the unloading pipe, forming a closed space with the front and rear curtains.

[0029] The dust suppression device for the unloading pipe includes a trapezoidal connecting frame 11 and a quick-connect curtain assembly, which is fixed to the unloading pipe 5 and moves with the vehicle; the quick-connect curtain assembly includes a curtain component 8 and a suspension rod 12; the curtain component 8 is suspended on the slot of the trapezoidal connecting frame 11 and fixed at both ends; after assembly, it is fixed at both ends of the frame structure, such as... Figure 1 The left view in Figure 3 , Figure 4 As shown.

[0030] Furthermore, the slot of the trapezoidal connecting frame 11 is located at the upper end of the frame structure 7 of the gravity self-sealing mechanism.

[0031] During unloading, the self-sealing door opens under the weight of the material, and the counterweight bar lifts up and leans against both sides of the unloading pipe to prevent the cover plate from flipping up and scattering the material under the weight of the counterweight bar when unloading is about to end. The cover plate and the front and rear baffles form a sealed space. When the unloading vehicle moves after unloading, the lever moves the counterweight bar to the tilt angle, so that the cover plate can be automatically closed under the weight of the counterweight bar.

[0032] In the description of this utility model, it should be noted that the above description is only an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or process transformations made using the content of this utility model specification and drawings due to differences in raw material type, unloading port, unloading pipe, etc., or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A gravity-type self-sealing door for a silo, characterized in that: The device includes a gravity self-sealing mechanism and a dust suppression device for the unloading pipe. The gravity self-sealing mechanism comprises a frame structure, a counterweight support, a rotating assembly, a rotating stop, and a lever. The gravity self-sealing mechanism is fixedly installed at the center of the hopper opening. The frame structure is a square frame structure composed of four vertically connected plates. The counterweight support is fixed to the frame structure. The rotating assembly includes a counterweight bar, a rotating shaft, and a cover plate, fixed to the long edge of the frame structure. The counterweight bar is long and placed above the counterweight support. The counterweight bar and the cover plate are connected and fixed to the frame structure via the rotating shaft. A rotating stop is located at the center of the cover plate, and the rotating stop is a flat steel bar fixed to the frame structure at both ends. The lever is a rod with outward-curving protrusions at both ends. The dust suppression device for the unloading pipe includes a trapezoidal connecting frame and a quick-insertion curtain assembly, fixed to the unloading pipe and moving with the vehicle. The quick-insertion curtain assembly includes a curtain component and a suspension rod. The curtain component is suspended in the slot of the trapezoidal connecting frame and fixed at both ends. After assembly, it is fixed to the front and rear ends of the frame structure.

2. The gravity-type self-sealing door for a silo according to claim 1, characterized in that: The counterweight support is welded and fixed to the side of the frame structure; the counterweight bar and cover plate are welded and fixed to the connecting sleeve, and the rotating shaft is placed inside the connecting sleeve; the connecting sleeve passes through the rotating shaft, and the two ends of the rotating shaft are fixed to the upper edge of the short side of the frame structure.

3. The gravity-type self-sealing door for a silo according to claim 2, characterized in that: The cover plate is a split cover plate, consisting of two symmetrical cover plates. During unloading, the two cover plates rotate downwards respectively.

4. The gravity-type self-sealing door for a silo according to claim 1, characterized in that: The frame structure is a supporting frame, with the pivot fixed at the upper end of the frame structure. The two sides of the frame structure are respectively equipped with counterweight supports. The unloading process takes place in the space enclosed by the frame. The counterweight bars on both sides flip up and lean against the unloading pipe, forming a closed space with the front and rear curtains.

5. The gravity-type self-sealing door for a silo according to claim 1, characterized in that: The slot of the trapezoidal connecting frame is located at the upper end of the frame structure of the gravity self-sealing mechanism.

6. The gravity-type self-sealing door for a silo according to claim 1, characterized in that: The lever is installed on the outer wall of the unloading pipe. After unloading, when the unloading vehicle moves, the lever will move the counterweight bar from the vertical direction to the tilt angle, so that the cover plate will automatically close under the gravity of the counterweight bar.

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