Automatic discharging device for gypsum bin

Abstract

The utility model discloses a kind of gypsum bin automatic discharging device, belong to material storage equipment technical field, including bunker;The bottom of the bunker is provided with discharge gate;The bottom of the discharge gate is provided with spiral feeder, the lower part inboard of the discharge gate is provided with discharge end;The discharge end is provided with flow control head;The inner wall between the flow control head and discharge end forms discharging gap;The outer side of the flow control head is provided with lifting control mechanism;The flow control head lower side is provided with the hopper for spiral feeder feeding.Discharge end cooperates with flow control head, utilize lifting control mechanism to adjust the distance between flow control head and discharge end, to realize the purpose of changing discharging speed.Utilize flow control head to replace existing solenoid valve, distance is adjusted between flow control head and discharge end using mechanical mode, high stability, and material is difficult to remain in it.

Description

Technical Field

[0001] This utility model relates to a feeding device, specifically an automatic feeding device for a gypsum silo, belonging to the technical field of material storage equipment. Background Technology

[0002] Gypsum silos, as a modern material discharge facility, are widely adaptable and can be used in grain storage, industrial applications, and agricultural production. Their high material density and fine processing result in a long service life and superior performance compared to traditional carbon steel or stainless steel silos. However, due to their wide adaptability, they can store a variety of materials with significant differences in particle size, leading to substantial variations in discharge speed. If the discharge speed is insufficient, for example, exceeding the conveyor's transfer speed, blockages are highly likely. Furthermore, higher speeds generate greater impact forces, hindering dust control. Current technologies typically use solenoid valves to control the discharge speed (see Chinese Patent Document CN218968272U, which discloses a convenient discharge component for desulfurized gypsum silos). However, the drawback of solenoid valves is that while they adjust the discharge speed by changing the orifice diameter, their complex structure allows very small particles to remain within the valve, mixing with other materials and affecting product quality. Therefore, further improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose an automatic feeding device for gypsum silos. The feeding speed is easy to adjust, the feeding process is stable and does not leave residue, it has a wide range of applications, and it is easy to maintain.

[0004] An automatic gypsum silo feeding device includes a silo; a discharge port is provided at the bottom of the silo; a screw feeder is provided at the bottom of the discharge port, and a discharge end is provided on the lower inner side of the discharge port; a flow control head is provided inside the discharge end; a feeding gap is formed between the flow control head and the inner wall of the discharge end; a lifting control mechanism is provided on the outside of the flow control head; and a hopper for feeding the screw feeder is provided below the flow control head.

[0005] Furthermore, the upper side of the discharge end is a feeding cylinder; the feeding cylinder is connected to the bottom of the hopper; the discharge end is coaxially arranged at the bottom of the feeding cylinder.

[0006] Furthermore, the discharge end has a trapezoidal inner cavity; the trapezoidal inner cavity is connected to the feeding cylinder; the flow control head includes an adjustment end and a connection end.

[0007] Furthermore, the cross-section of the adjusting end is trapezoidal; the outer contour of the adjusting end matches the inner contour of the trapezoidal cavity; the upper side of the adjusting end is arc-shaped; an inner cavity is coaxially provided on the inner side of the adjusting end; and an internal thread is provided in the inner cavity.

[0008] Furthermore, a plug is screwed into the inner cavity; the plug has external threads on its outer side; the plug is screwed into the inner cavity; the connecting end is located at the bottom of the adjusting end; the connecting end has a rectangular cross-section and is located at the bottom outer side of the discharge end.

[0009] Furthermore, the lifting control mechanism includes a protrusion disposed on the outside of the connecting end; it also includes a mounting plate disposed on the outside of the discharge end; the protrusion corresponds one-to-one with the mounting plate; the protrusion includes at least three protrusions.

[0010] Furthermore, the lifting control cylinder also includes cylinders disposed on each mounting plate; the pistons of the cylinders are respectively connected to the corresponding protrusions.

[0011] This invention offers the following advantages: The discharge end works in conjunction with a flow control head, and a lifting control mechanism adjusts the distance between the flow control head and the discharge end to change the feeding speed. Replacing the existing solenoid valve with a flow control head, the distance between the flow control head and the discharge end is mechanically adjusted, resulting in high stability and preventing material residue. Furthermore, the structure is simple, reasonable, and easy to maintain. Simultaneously, the flow control head also has a sealing function, sealing the hopper to stop feeding. Finally, a plug is included inside the flow control valve; this plug can be manually removed. When the flow rate between the flow control head and the discharge end is too low to meet transfer requirements, the plug can be removed to increase the flow rate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0013] Figure 2 This is a schematic diagram of the structure of the discharge end and the flow control head.

[0014] Figure 3 This is a schematic diagram of another embodiment of the present invention.

[0015] Wherein: 1 is the hopper, 2 is the screw feeder, 3 is the discharge end, 3-1 is the trapezoidal inner cavity, 4 is the flow control head, 4-1 is the adjustment end, 4-2 is the inner cavity, 5 is the discharge gap, 6 is the hopper, 7 is the discharge cylinder, 8 is the plug, 9 is the protrusion, 10 is the mounting plate, and 11 is the cylinder. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] See Figures 1-2 This application discloses an automatic gypsum silo feeding device, including a silo 1; a discharge port is provided at the bottom of the silo 1; a screw feeder 2 is provided at the bottom of the discharge port, and a discharge end 3 is provided on the lower inner side of the discharge port; a flow control head 4 is provided inside the discharge end 3; a feeding gap 5 is formed between the flow control head 4 and the inner wall of the discharge end 3; a lifting control mechanism is provided on the outer side of the flow control head 4; and a hopper 6 for feeding the screw feeder 2 is provided on the lower side of the flow control head 4.

[0018] Furthermore, the upper side of the discharge end 3 is a feeding cylinder 7; the feeding cylinder 7 is connected to the bottom of the hopper 1; the discharge end 3 is coaxially arranged at the bottom of the feeding cylinder 7.

[0019] Furthermore, the discharge end 3 has a trapezoidal inner cavity 3-1; the trapezoidal inner cavity 3-1 is connected to the discharge cylinder 7; the flow control head 4 includes an adjustment end 4-1 and a connection end 4-2.

[0020] Furthermore, the cross-section of the adjustment end 4-1 is trapezoidal; the outer contour of the adjustment end 4-1 matches the inner contour of the trapezoidal inner cavity 3-1; the upper side of the adjustment end 4-1 is arc-shaped; an inner cavity 4-2 is coaxially provided on the inner side of the adjustment end 4-1; and the inner cavity 4-2 is provided with an internal thread.

[0021] Furthermore, a plug 8 is screwed into the inner cavity 4-2; the plug 8 has external threads on its outer side; the plug 8 is screwed into the inner cavity 4-2; the connecting end 4-3 is located at the bottom of the adjusting end 4-1; the cross-section of the connecting end 4-3 is rectangular and is located at the bottom outer side of the discharge end 3.

[0022] Furthermore, the lifting control mechanism includes a protrusion 9 disposed on the outer side of the connecting end 4-3; it also includes a mounting plate 10 disposed on the outer side of the discharge end 3; the protrusion 9 corresponds one-to-one with the mounting plate 10; and there are at least three protrusions 9.

[0023] Furthermore, the lifting control cylinder also includes cylinders 11 disposed on each mounting plate; the pistons of the cylinders 11 are respectively connected to the corresponding protrusions 9.

[0024] Working principle: Material enters the discharge cylinder 7 from the hopper 1 downwards. When the flow control head 4 is in a blocked state, it is completely inside the trapezoidal inner cavity 3-1, with its outer wall completely in contact with the inner wall of the trapezoidal inner cavity 3-1. At this time, the material in the discharge cylinder 7 cannot move downwards and enter the hopper for discharge. When discharge is needed, the cylinder 11 operates, driving the flow control head 4 to descend. The outer wall of its adjusting end 4-1 gradually separates from the inner wall of the trapezoidal inner cavity 3-1, creating a gap that allows material to fall. The more the flow control head 4 descends, the wider this gap becomes, thereby increasing the discharge flow rate and achieving flow and speed control.

[0025] Meanwhile, if the maximum width of the material gap 5 still cannot meet the maximum flow requirement, the plug 8 located inside the flow control head 4 can be manually removed to further expand the flow channel.

[0026] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An automatic gypsum silo unloading device, comprising a silo; a discharge port is provided at the bottom of the silo; a screw feeder is provided at the bottom of the discharge port, characterized in that: A discharge end is provided on the lower inner side of the discharge port; a flow control head is provided inside the discharge end; a feeding gap is formed between the flow control head and the inner wall of the discharge end; a lifting control mechanism is provided on the outer side of the flow control head; and a hopper for feeding the screw feeder is provided on the lower side of the flow control head.

2. The automatic gypsum silo feeding device according to claim 1, characterized in that: The upper side of the discharge end is a feeding cylinder; the feeding cylinder is connected to the bottom of the hopper; the discharge end is coaxially arranged at the bottom of the feeding cylinder.

3. The automatic gypsum silo feeding device according to claim 2, characterized in that: The discharge end has a trapezoidal inner cavity; the trapezoidal inner cavity is connected to the feeding cylinder; the flow control head includes an adjustment end and a connection end.

4. The automatic gypsum silo feeding device according to claim 3, characterized in that: The cross-section of the adjustment end is trapezoidal; the outer contour of the adjustment end matches the inner contour of the trapezoidal cavity; the upper side of the adjustment end is arc-shaped; an inner cavity is coaxially provided on the inner side of the adjustment end; and the inner cavity is provided with an internal thread.

5. The automatic gypsum silo unloading device according to claim 4, characterized in that: A plug is screwed into the inner cavity; the plug has external threads on its outer side; the plug is screwed into the inner cavity; the connecting end is located at the bottom of the adjusting end; the connecting end has a rectangular cross-section and is located at the bottom outer side of the discharge end.

6. The automatic gypsum silo feeding device according to claim 5, characterized in that: The lifting control mechanism includes a protrusion on the outside of the connecting end; it also includes a mounting plate on the outside of the discharge end; the protrusion and the mounting plate correspond one-to-one; the protrusion includes at least three protrusions.

7. The automatic gypsum silo feeding device according to claim 6, characterized in that: The lifting control mechanism also includes cylinders mounted on each mounting plate; the pistons of the cylinders are respectively connected to the corresponding protrusions.

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