A down feeder anti-float dust device for a super-micro pulverizer cyclone separator

Abstract

The utility model provides a kind of for the discharging anti-float dust device of supermicro grinder cyclone separator, it is related to anti-float device technical field, to solve when powder falls from discharging port, it is extremely easy to entrain and adsorb air in falling process, powder itself falls when also air will be disturbed, leading to the problem that fine dust escapes from gap, including cyclone separator;Cyclone separator bottom is provided with discharge port;Discharge port bottom is provided with sealing element;Sealing element inside is provided with flexible resistance flow sleeve;Sealing element side is provided with connecting pipe;Connecting pipe inside is provided with exhaust filter.The flexible sleeve of lower end free vertical drop is adopted, and its core lies in utilizing material self-weight dynamic opening and closing, close to prevent dust when no material, wrapping column to seal when discharging, solve the contradiction between fixed seal and dynamic discharging, and set up exhaust filter, eliminate the motive power of dust escape, the perfect combination of block and loose is realized by the synergistic effect of the two.

Description

Technical Field

[0001] This utility model belongs to the technical field of anti-floating dust devices, and more specifically, it relates to an anti-floating dust device for the feeding of a cyclone separator in an ultrafine pulverizer. Background Technology

[0002] When the ultrafine pulverizer is working, it usually forms a closed-loop system with a cyclone separator and a dust collector. The pulverized material and airflow enter the cyclone separator together. Under centrifugal force, most of the coarser powder is separated and discharged through the discharge port at the bottom of the cyclone separator into the collection bucket or the next process. This device is needed to prevent the powder from floating.

[0003] Based on existing technology, it has been found that cyclone separators typically maintain a certain positive pressure. When powder falls from the feed inlet, it carries some air into the collection bin, causing the air pressure inside the bin to rise instantaneously. This high-pressure airflow carries extremely fine dust particles. Since ultrafine powders have extremely small particle sizes and large specific surface areas, they easily trap and adsorb air during their fall. The falling powder itself also disturbs the air, causing fine dust to escape from the gaps. Ordinary filter bags may not be able to completely block the passage of micron-sized dust, resulting not only in material loss but also serious pollution of the production environment, endangering the health of operators, posing a dust explosion hazard, and failing to meet industry cleanliness standards. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a feeding and dust prevention device for a cyclone separator in an ultrafine pulverizer. This device solves the problem that when powder falls from the feeding port, it carries some air into the collection bin, causing a sudden increase in air pressure inside the bin. This high-pressure airflow carries extremely fine dust particles. Since ultrafine powders have very small particle sizes and large specific surface areas, they are very easy to trap and adsorb air during the falling process. The falling powder itself also disturbs the air, causing fine dust to escape from the gaps.

[0005] This utility model discloses a dust prevention device for the feeding of a cyclone separator in an ultrafine pulverizer, which is achieved through the following specific technical means: A dust prevention device for feeding a cyclone separator in an ultrafine pulverizer includes a cyclone separator; The cyclone separator has a discharge port at its bottom; a sealing element is provided at the bottom of the discharge port; a flexible flow-blocking sleeve is provided inside the sealing element; a connecting pipe is provided on the side of the sealing element; an exhaust filter is provided inside the connecting pipe; an inlet and an outlet are provided on both sides of the exhaust filter; the inlet of the exhaust filter is correspondingly located inside the sealing element; and the outlet side of the exhaust filter is correspondingly located on the outlet side of the connecting pipe.

[0006] Furthermore, the cyclone separator is configured with a conical structure; an air inlet is provided on the top side of the cyclone separator; and an exhaust port is provided on the top of the cyclone separator.

[0007] Furthermore, the sealing element is configured as a frustum-shaped structure; the top of the sealing element is connected to the top of the flexible flow-blocking sleeve; the flexible flow-blocking sleeve is configured correspondingly to the discharge port.

[0008] Furthermore, a collecting element is provided at the bottom of the sealing element; a flexible flow-blocking sleeve is provided at the top inside the collecting element.

[0009] Furthermore, the flexible flow-blocking sleeve is configured as a cylindrical structure; the flexible flow-blocking sleeve is made of a flexible filter material.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. In this device, a flexible flow-blocking sleeve is installed. The flexible flow-blocking sleeve is made of flexible filter material and is cylindrical. Its upper end is fixed to the top of the seal, and its lower end hangs down naturally, forming a free "cuff" structure. When no material passes through, the bottom part of the flexible flow-blocking sleeve closes naturally under the action of gravity. When material passes through, it is opened by the material and wraps around the material column, thus physically isolating the main channel for dust to rise. Unlike traditional fixed seals or simple cloth bags, this device uses a flexible sleeve with a free hanging lower end. Its core is to use the material's own weight to dynamically open and close. When there is no material, it closes to prevent dust. When material is being discharged, it wraps around the column to seal it, thus solving the contradiction between fixed sealing and dynamic material discharge. 2. In this device, an exhaust filter is installed, and a dust removal device is connected to the external pipe. The two functions of active pressure balance through flexible physical barrier are integrated inside the seal. The former blocks the path of dust escape, and the latter eliminates the driving force of dust escape. The two work together to achieve a perfect combination of "blocking" and "dredging". Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0012] Figure 2 This is a partially exploded three-dimensional structural diagram of the present invention.

[0013] Figure 3 This is a partially cross-sectional three-dimensional structural schematic diagram of this utility model.

[0014] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Cyclone separator; 2. Air inlet; 3. Exhaust outlet; 4. Material outlet; 5. Seal; 6. Flexible flow-blocking sleeve; 7. Connecting pipe; 8. Exhaust filter; 9. Collection component. Detailed Implementation

[0015] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0016] Example: As attached Figure 1 To be continued Figure 3 As shown: This utility model provides a feeding and dust prevention device for a cyclone separator in an ultrafine pulverizer, including a cyclone separator 1; The cyclone separator 1 has a discharge port 4 at its bottom; a sealing element 5 is installed at the bottom of the discharge port 4; a flexible flow-blocking sleeve 6 is installed inside the sealing element 5; a connecting pipe 7 is installed on the side of the sealing element 5; an exhaust filter 8 is installed inside the connecting pipe 7; an inlet and an outlet are respectively installed on both sides of the exhaust filter 8; the inlet of the exhaust filter 8 is correspondingly positioned inside the sealing element 5; the outlet side of the exhaust filter 8 is correspondingly positioned on the outlet side of the connecting pipe 7; the cyclone separator 1 here is used to transport dust-laden gas from the inlet 2 into the cyclone separator 1 by a fan. The airflow forms a high-speed rotating external vortex along the inner wall of the cyclone separator 1, and the dust particles in the gas, because their density is much greater than that of the gas, are subjected to a huge centrifugal force and are violently thrown against the inner wall of the separator. The rotating airflow also carries the gas towards the center. The dust particles thrown against the wall of the device slide spirally downward along the inner wall of the conical cylinder under the action of gravity and downward airflow. They enter the collection device 9 through the bottom outlet 4 and the flexible flow-blocking sleeve 6. The outer swirling airflow, having lost most of the dust, forms a pressure difference after reaching the bottom of the cone, causing the airflow to reverse and form an inner swirling airflow from bottom to top in the central area of ​​the separator. This allows the clean gas to be discharged through the top exhaust port 3. The connecting pipe 7 is used to connect an external vacuum cleaner or dust removal device. It allows gas to pass through but can 100% intercept ultrafine powder. As for the dust removal device, a dust collector or other equipment can be used to generate suction on the air, and the connection is a conventional pipe connection.

[0017] Among them, such as Figure 1 As shown, the cyclone separator 1 is configured with a conical structure; an air inlet 2 is provided on the top side of the cyclone separator 1; and an exhaust port 3 is provided on the top of the cyclone separator 1.

[0018] Among them, such as Figure 3 As shown, the sealing element 5 is configured as a frustum-shaped structure; the top of the sealing element 5 is connected to the top of the flexible flow-blocking sleeve 6; the flexible flow-blocking sleeve 6 is configured to correspond to the discharge port 4.

[0019] Among them, such as Figure 2 As shown, a collector 9 is provided at the bottom of the seal 5; a flexible flow-blocking sleeve 6 is provided at the top inside the collector 9.

[0020] Among them, such as Figure 3 As shown, the flexible flow-blocking sleeve 6 is configured as a cylindrical structure; the flexible flow-blocking sleeve 6 is made of flexible filter material; the flexible flow-blocking sleeve 6 here is made of antistatic, wear-resistant, and flexible filter material, and is cylindrical with the lower end hanging down naturally to form a free "sleeve" structure. When no material passes through, it closes naturally under the action of gravity; when material passes through, it is opened by the material and wraps around the material column, thereby physically isolating the main channel for dust to rise.

[0021] The specific usage and function of this embodiment are as follows: In this invention, when using the device, dust-laden gas enters the cyclone separator 1 through the air inlet 2. The airflow forms a high-speed rotating outer vortex along the inner wall of the cyclone separator 1. Through centrifugal force, the dust-laden gas is violently thrown against the inner wall of the separator. The rotating airflow also carries the gas towards the center. The dust particles thrown against the wall slide spirally downward along the inner wall of the conical cylinder under the action of gravity and downward airflow. They pass through the bottom outlet 4 and the flexible flow-blocking sleeve 6. When material passes through, it is pushed open and wrapped by the material column, allowing dust and other particles to enter the collection element 9. The outer vortex, having lost most of the dust, forms a pressure difference after reaching the bottom of the cone, causing the airflow to reverse and form an inner vortex from bottom to top in the central area of ​​the separator. This allows the clean gas to be discharged through the top exhaust port 3. The connecting pipe 7 is used to connect an external dust removal device, which allows gas to pass through but can 100% intercept ultrafine powder.

Claims

1. A dust prevention device for the feeding of a cyclone separator in an ultrafine pulverizer, characterized in that: Including cyclone separator (1); The cyclone separator (1) has a discharge port (4) at its bottom; a sealing element (5) is provided at the bottom of the discharge port (4); a flexible flow-blocking sleeve (6) is provided inside the sealing element (5); a connecting pipe (7) is provided on the side of the sealing element (5); an exhaust filter (8) is provided inside the connecting pipe (7); an inlet and an outlet are provided on both sides of the exhaust filter (8); the inlet of the exhaust filter (8) is correspondingly provided inside the sealing element (5); the outlet side of the exhaust filter (8) is correspondingly provided on the outlet side of the connecting pipe (7).

2. The dust prevention device for the feeding of a cyclone separator in an ultrafine pulverizer according to claim 1, characterized in that: The cyclone separator (1) is configured with a conical structure; an air inlet (2) is provided on the top side of the cyclone separator (1); and an exhaust port (3) is provided on the top of the cyclone separator (1).

3. The dust prevention device for the feeding of a cyclone separator in an ultrafine pulverizer according to claim 1, characterized in that: The sealing element (5) is configured as a frustum-shaped structure; the top of the sealing element (5) is connected to the top of the flexible flow-blocking sleeve (6); the flexible flow-blocking sleeve (6) and the discharge port (4) are configured to correspond to each other.

4. The dust prevention device for the feeding of a cyclone separator in an ultrafine pulverizer according to claim 1, characterized in that: The bottom of the sealing element (5) is provided with a collecting element (9); the top of the inside of the collecting element (9) is provided with a flexible flow-blocking sleeve (6).

5. A dust prevention device for feeding a cyclone separator in an ultrafine pulverizer according to claim 1, characterized in that: The flexible flow-blocking sleeve (6) is configured as a cylindrical structure; the flexible flow-blocking sleeve (6) is made of flexible filter material.

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