Powder feeding bin

Abstract

This utility model discloses a powder feeding silo, including a silo body with a feed inlet at the top and a discharge outlet at the bottom. The inner wall of the silo body is equipped with an airflow-assisted feeding structure, which includes several air inlets evenly distributed on the inclined surface of the silo body, with the air inlet direction set at a 45° angle to the silo body wall. The bottom of the silo body is equipped with an arch-breaking conveying device, which includes a shell, an arch-breaking spiral structure, and a conveying spiral structure. The upper end of the shell is bolted to the discharge outlet. The two ends of the arch-breaking spiral structure and the conveying spiral structure are rotatably connected to both sides of the inner wall of the shell, with the conveying spiral structure located at the lower end of the arch-breaking spiral structure. A discharge port is located at the lower end of one side of the shell. This utility model effectively protects worker health and the environment, and improves production efficiency and process continuity.

Description

Technical Field

[0001] This utility model relates to the field of material processing technology, specifically to a powder feeding hopper. Background Technology

[0002] The feeding hopper is suitable for industries such as pharmaceuticals, chemicals, food, battery materials, and plastic modification. When materials are unpacked and poured into the next process, manual unpacking and feeding into the system are all that's needed. The material is then automatically transported to the next process via a motor-driven conveyor screw. However, manual feeding is time-consuming and generates a lot of dust, and the powder tends to clump when discharged. This leads to the following three problems:

[0003] 1. Manual feeding requires a lot of time and affects production efficiency.

[0004] 2. A large amount of dust is generated during the feeding process, which pollutes the environment and affects the health of workers.

[0005] 3. Clumping of powder materials occurred in the silo. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model discloses a powder feeding hopper to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a powder feeding hopper, comprising a hopper body, wherein a feed inlet is provided at the top of the hopper body and a discharge outlet is provided at the bottom of the hopper body;

[0008] The inner wall of the silo is provided with an airflow-assisted feeding structure, which includes a plurality of air inlets. The plurality of air inlets are evenly distributed on the inclined surface of the silo, and the air inlet direction is set at 45° with the silo wall.

[0009] The bottom of the silo is equipped with an arch-breaking conveying device, which includes a shell, an arch-breaking spiral structure, and a conveying spiral structure. The upper end of the shell is connected to the discharge port by bolts. The two ends of the arch-breaking spiral structure and the conveying spiral structure are respectively rotatably connected to the two sides of the inner wall of the shell. The conveying spiral structure is located at the lower end of the arch-breaking spiral structure. A discharge port is provided at the lower end of one side of the shell.

[0010] Preferably, the silo body is equipped with a low level gauge and a high level gauge, which are used to detect low and high levels, respectively. When the level is low, feeding is triggered, and feeding is stopped when the level is high.

[0011] Preferably, a first motor and a second motor are respectively provided on the other side wall of the outer casing. The output end of the first motor is connected to the arch-breaking spiral structure, and the second motor is connected to the conveying spiral structure.

[0012] Preferably, the upper side wall of the silo is provided with a dust removal inlet, which is connected to an external dust removal device through a pipe to collect dust generated during the feeding process.

[0013] Preferably, a sealing cap is provided at the feed inlet.

[0014] Preferably, a pressure balancing valve is provided at the upper end of the chamber to balance the internal pressure of the chamber.

[0015] Preferably, the conveying spiral structure is equipped with a shaft blowing device.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model provides precise and convenient material feeding control. By triggering material replenishment and stopping material feeding through low-level and high-level gauges respectively, it achieves automatic monitoring and control of material inventory, reduces manual intervention, and improves the continuity and efficiency of the overall production process.

[0018] 2. This utility model has a good dust pollution control effect. During feeding, the pressure balancing valve balances the internal pressure of the silo, and the dust removal device collects the dust generated during the feeding process. At the same time, the airflow-assisted feeding structure blows at a 45° angle to prevent dust from being sprayed out from the feed inlet, effectively protecting the health of workers and the surrounding environment.

[0019] 3. This utility model ensures smooth and unobstructed material feeding. During discharge, the arch-breaking spiral structure and the conveying spiral structure start synchronously to prevent powder from clumping. The airflow-assisted feeding structure further assists the powder flow. The shaft blowing device finishes off after discharge, ensuring the efficiency and stability of material feeding from the feeding hopper in all aspects. Attached Figure Description

[0020] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0021] In the attached diagram:

[0022] Figure 1 This is a side view of the powder feeding hopper of this utility model;

[0023] Figure 2 This is a front view of the powder feeding hopper of this utility model;

[0024] Figure 3 This is a schematic structural view of the bottom of the container body of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the arch-breaking conveyor device of this utility model;

[0026] The following are the labels in the diagram: 1. Bin body; 2. Inlet; 3. Outlet; 401. Air inlet; 501. Outer shell; 502. Arch-breaking spiral structure; 503. Conveying spiral structure; 504. Discharge port; 505. First motor; 506. Second motor; 6. Low level gauge; 7. High level gauge; 8. Dust removal inlet; 9. Sealing cover; 10. Pressure balancing valve. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] Example: Figures 1-4 As shown, a powder feeding hopper includes a hopper body 1, with a feed inlet 2 at the top and a discharge outlet 3 at the bottom.

[0029] The inner wall of the silo 1 is provided with an airflow-assisted feeding structure, which includes several air inlets 401. These air inlets 401 are evenly distributed on the inclined surface of the silo 1, and the air intake direction is set at a 45° angle to the wall of the silo 1 to prevent dust from being ejected from the feed inlet 2 during purging. The silo 1 is respectively equipped with a low-level gauge 6 and a high-level gauge 7, which are used to detect low and high material levels, respectively. Feeding is triggered when the material level is low and stopped when the material level is high. The bottom of the silo 1 is provided with an arch-breaking conveying device, which includes a housing 501, an arch-breaking spiral structure 502, and a conveying spiral structure 503. The upper end of the housing 501 is bolted to the discharge port 3. The two ends of the arch-breaking spiral structure 502 and the conveying spiral structure 503 are rotatably connected to the two sides of the inner wall of the outer shell 501, respectively. The conveying spiral structure 503 is located at the lower end of the arch-breaking spiral structure 502. The other side wall of the outer shell 501 is provided with a first motor 505 and a second motor 506. The output end of the first motor 505 is connected to the arch-breaking spiral structure 502, and the second motor 506 is connected to the conveying spiral structure 503. When the conveying spiral structure 503 is turned on, the arch-breaking spiral structure 502 is turned on at the same time to avoid powder agglomeration. The conveying spiral structure 503 is provided with a shaft blowing device. A discharge port 504 is provided at the lower end of one side of the outer shell 501 for finally discharging the powder.

[0030] Specifically, a dust removal inlet 8 is provided on the upper side wall of the silo body 1, and is connected to an external dust removal device through a pipe to collect dust generated during the feeding process. When the door of the feeding silo body 1 is opened, the pressure balancing valve 10 is activated, which can effectively reduce dust pollution and protect the environment and workers' health. A sealing cover 9 is provided at the feed inlet 2. A pressure balancing valve 10 is provided at the upper end of the silo body 1 to balance the internal pressure of the silo body 1.

[0031] The operating steps of this feeding hopper are as follows:

[0032] First, material is fed through the feeding port. At this time, the dust removal device is activated simultaneously and connected to the dust removal inlet 8 of the silo 1 through a pipeline. It works with the pressure balancing valve 10 on the sealing cover 9 to balance the internal pressure of the silo 1, effectively reducing dust pollution during the feeding process and protecting the health of workers and the environment. When the material level is detected by the high-level gauge 7 of the silo 1, feeding stops and the sealing cover 9 is closed. When the low-level gauge 6 detects a low level, the replenishment process is triggered. During discharge, the second motor 506 is started to drive the conveying spiral structure 503, while the first motor 505 synchronously drives the arch-breaking spiral structure. 502, the two together form an arch-breaking conveying device. The outer shell 501 is bolted to the discharge port 3 of the silo 1 to prevent powder from clumping. During the discharge process, the airflow on the inner wall of the silo 1 assists the feeding structure to work synchronously. The six air inlets 401 are evenly distributed on the inclined surface of the silo 1 to blow at a 45° angle to the wall of the silo 1 to prevent powder blockage and prevent dust from being sprayed out from the feed inlet 2. After the discharge is completed, the shaft blowing device on the conveying spiral structure 503 is started and works continuously for 3 seconds. Finally, the powder is discharged through the discharge port 504 at the lower end of the outer shell 501.

[0033] The powder feeding silo controls dust pollution through a pressure balancing valve 10 in conjunction with a dust removal device, ensures smooth material feeding through an arch-breaking spiral structure 502 and an airflow-assisted feeding structure, and achieves precise feeding control through a level gauge. It is also equipped with a shaft blowing device to finish the process, thus achieving the effects of less dust, stable feeding, and convenient control in all aspects. This effectively protects the health of workers and the environment, and improves production efficiency and process continuity.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A powder feeding hopper, characterized in that: Includes a hopper body, with a feed inlet at the top and a discharge outlet at the bottom; The inner wall of the silo is provided with an airflow-assisted feeding structure, which includes a plurality of air inlets. The plurality of air inlets are evenly distributed on the inclined surface of the silo, and the air inlet direction is set at 45° with the silo wall. The bottom of the silo is equipped with an arch-breaking conveying device, which includes a shell, an arch-breaking spiral structure, and a conveying spiral structure. The upper end of the shell is connected to the discharge port by bolts. The two ends of the arch-breaking spiral structure and the conveying spiral structure are respectively rotatably connected to the two sides of the inner wall of the shell. The conveying spiral structure is located at the lower end of the arch-breaking spiral structure. A discharge port is provided at the lower end of one side of the shell.

2. The powder feeding silo according to claim 1, characterized in that: The silo is equipped with a low level gauge and a high level gauge, which are used to detect low and high levels, respectively.

3. The powder feeding silo according to claim 1, characterized in that: The other side wall of the outer casing is provided with a first motor and a second motor. The output end of the first motor is connected to the arch-breaking spiral structure, and the second motor is connected to the conveying spiral structure.

4. A powder feeding silo according to claim 1, characterized in that: The upper side wall of the silo is provided with a dust removal inlet, which is connected to an external dust removal device through a pipe to collect the dust generated during the feeding process.

5. A powder feeding silo according to claim 4, characterized in that: A sealing cap is provided at the feed inlet.

6. A powder feeding silo according to claim 5, characterized in that: A pressure balancing valve is installed at the upper end of the chamber to balance the internal pressure of the chamber.

7. A powder feeding silo according to claim 1, characterized in that: The conveying spiral structure is equipped with a shaft blowing device.

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