CN110236217A - A self-cleaning filter screen cylinder - Google Patents

Abstract

The invention discloses a self-cleaning filter screen cylinder, which comprises a cylindrical filter cylinder, and the two ends of the cylindrical filter cylinder are integrally formed and coaxially provided with a circular platform filter cylinder, and the cylindrical filter cylinder and the surface of the circular platform filter cylinder are evenly arranged in an array There are multiple ventilation holes, and a hollow rotating shaft is coaxially fixed between the two round table filter cartridges, and a plurality of air jets are uniformly arranged on the hollow rotating shaft, and the air jets are located in the cylindrical filter cartridge and the round table filter cartridge, and the hollow rotating shaft The sealed end is connected with a servo motor. The open end of the hollow shaft is connected to the main pipe through a rotary seal connector. The free end of the main pipe is connected to the first branch pipe and the second branch pipe. The end of the first branch pipe is connected to the air pressure source. connection, the end of the second branch pipe is connected with the water pressure source; the present invention realizes the online real-time self-cleaning function of the cylindrical filter cartridge and the round table filter cartridge, further ensures cleanliness and good air permeability, and improves the humidification of the moisture discharge pipe Moisturizing, drying effect.

Description

A self-cleaning filter screen cylinder

technical field

The invention belongs to the technical field of moisture removal and hot gas circulation of a drum type moisture removal system, and in particular relates to a self-cleaning filter screen cylinder for shredded tobacco humidification and moisture recovery and drying drum equipment.

Background technique

In the tobacco shred production line, drum-type equipment is generally used in the processes of humidification, rehydration, and drying. The drum is installed in such a way that the inlet end is high and the outlet end is low. Drying treatment, and then enter the next process after coming out of the exit end of the drum.

There is a post-processing room at the end of the equipment, and the outlet of the drum is located in the post-processing room. A moisture exhaust pipe is installed on the top of the post-processing room to extract excess exhaust gas from the drum. At the same time, the hot air circulation system also extracts hot air from the drum through the moisture exhaust pipe. Recycling; in order to prevent materials such as shredded tobacco in the drum from clogging the dehumidification pipe, a structure such as a filter is often installed at the end of the dehumidification pipe, but even in this way, some shredded tobacco will still be adsorbed on the filter structure such as a filter, which directly affects the dehumidification function and The function of hot gas circulation can further affect the temperature inside the cylinder and affect the temperature and moisture content of the material.

During normal production, no matter it is the moisture removal process or the hot gas recycling process, it is inevitable that a little material will be mixed. After the material is filtered by the filter structure, some materials will adhere to the filter structure. If it is not cleaned for a long time, it will block the mesh of the filter structure. Holes will affect the effect of moisture removal and hot gas recycling, and even affect product quality and damage equipment. During the production process, the operation of the equipment cannot be suspended to clean and maintain the screen.

On the other hand, after use, it is often necessary to manually enter the post-processing room to spray water on the filter structure such as the filter screen. During the cleaning process, the water will fall on the clothes, hair, and eyes of the employees, which increases the difficulty of cleaning. And there are potential safety hazards; and if the screen is not cleaned cleanly, it is easy to affect the moisture drainage effect, and then affect the quality of the product.

Contents of the invention

The object of the invention is to propose a kind of self-cleaning filter screen cylinder in order to solve the problems existing in the above-mentioned prior art; The technical scheme adopted for achieving the above-mentioned purpose is:

A self-cleaning filter screen cartridge, comprising a cylindrical filter cartridge, the two ends of the cylindrical filter cartridge are integrally formed and coaxially provided with a round table filter cartridge, and the inner diameter of the round table filter cartridge gradually extends outward from the end of the cylindrical filter cartridge. Smaller, a number of ventilation holes are evenly arranged on the surface of the cylindrical filter cartridge and the circular table filter cartridge, and a hollow shaft is coaxially fixed between the two circular table filter cartridges, and both ends of the hollow shaft extend out of the circular table filter cartridge , one end of the hollow rotating shaft is a sealed end, and the other end is an open end. A plurality of air injection ports are uniformly arranged on the hollow rotating shaft. The air injection ports are located in the cylindrical filter cartridge and the round table filter cartridge. Servo motor, the open end of the hollow rotating shaft communicates with the main pipeline through a rotary seal connector, the free end of the main pipeline communicates with the first branch pipeline and the second branch pipeline, and electromagnetic valves are installed on the first branch pipeline and the second branch pipeline. For the valve, the end of the first branch pipeline is connected with the air pressure source, and the end of the second branch pipeline is connected with the water pressure source.

Preferably, the ventilation hole is a conical ventilation hole, and the diameter of the conical ventilation hole gradually decreases from the inside of the cylindrical filter cartridge or the conical filter cartridge to the outside along the radial direction.

Preferably, the rotary sealing connector includes a fixed cylinder body and a moving cylinder body, one end of the moving cylinder body is coaxially sleeved in the fixed cylinder body and the moving cylinder body is rotatably connected to the fixed cylinder body. A plurality of annular sealing grooves are arranged side by side on the surface, and a plurality of annular sealing rings matched with the annular sealing grooves are arranged side by side on the inner wall of the fixed cylinder. The free end of the body is fixedly connected with the main pipeline, and the free end of the moving cylinder body is fixedly connected coaxially with the hollow rotating shaft.

Preferably, the bottom of the annular sealing groove is an arc-shaped bottom surface, and the end of the annular sealing ring is an arc-shaped convex surface matched with the arc-shaped bottom surface.

Preferably, a sealing rubber ring is provided between the annular sealing groove and the annular sealing ring.

The beneficial effects of the present invention are as follows: (1) Adding a rotating cylindrical filter cartridge at the port of the moisture-discharging pipe prevents tobacco shreds, tobacco stems and other substances in the drum from entering the moisture-discharging pipe and affecting the working effect.

(2) In the process of cleaning, add round filter cartridges at both ends of the cylindrical filter cartridge, so that the gas in the hollow shaft enters the cylindrical filter cartridge, and the vortex is mainly concentrated in the round filter cartridges at both ends, so that it is around the port of the moisture discharge pipe. A high-pressure wind isolation zone is formed, which further hinders shredded tobacco and choking from entering the moisture discharge pipe of the inner core of the cylindrical filter cartridge.

(3) Through the independent action of the first branch pipe and the second branch pipe, the alternating effect of wind blowing cleaning and water spray cleaning of the cylindrical filter cartridge and the round table filter cartridge is realized, the cleaning efficiency is high, and the dry block after cleaning does not affect the work .

(4) Cylindrical filter cartridges and round table filter cartridges can also be rotated while performing wind blowing cleaning and water spray cleaning, thereby further increasing the cleaning effect.

(5) The present invention realizes the online real-time self-cleaning function of the cylindrical filter cartridge and the round table filter cartridge, further ensures cleanliness and good air permeability, and improves the humidification, remoisture and drying effects of the moisture drainage pipeline.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is a structural schematic diagram of a rotary seal connector;

Fig. 3 is the structural representation of tapered ventilation hole;

Fig. 4 is a schematic diagram of the structure of the hollow rotating shaft.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 4, a self-cleaning filter screen cartridge includes a cylindrical filter cartridge 9, and the two ends of the cylindrical filter cartridge 9 are integrally formed and coaxially provided with a round table filter cartridge 8, and the round table filter cartridge The inner diameter of 8 gradually becomes smaller from the end of the cylindrical filter cartridge 9 outward, and a plurality of ventilation holes 10 are evenly arrayed on the surface of the cylindrical filter cartridge 9 and the circular table filter cartridge 8, and are coaxial between the two circular table filter cartridges 8. A hollow rotating shaft 7 is fixed, and both ends of the hollow rotating shaft 7 protrude out of the round table filter cartridge 8, one end of the hollow rotating shaft 7 is a sealed end, and the other end is an open end, and a plurality of air injection ports are uniformly arranged on the hollow rotating shaft 7 12. The air injection port 12 is located in the cylindrical filter cartridge 9 and the round table filter cartridge 8, the sealed end of the hollow rotating shaft 7 is connected to the servo motor 11, and the open end of the hollow rotating shaft 7 communicates with the main pipeline 5 through the rotary sealing connector 6, The free end of the main pipeline 5 communicates with a first branch pipeline 1 and a second branch pipeline 4, and electromagnetic valves 2, 3 are installed on the first branch pipeline 1 and the second branch pipeline 4, and the end of the first branch pipeline 1 is connected to the first branch pipeline 4. The air pressure source is connected, and the end of the second branch pipe 4 is connected with the water pressure source.

Wherein, the ventilation hole 10 is a conical ventilation hole, and the diameter of the conical ventilation hole gradually decreases from the inside of the cylindrical filter cartridge 9 or the circular platform filter cartridge 8 along the radial direction, thereby reducing the ventilation of shredded tobacco and tobacco stems. When the hole 10 enters into the cylindrical filter cartridge 9 and the circular platform filter cartridge 8, the air jet or water spray pressure at the constriction of the vent hole 10 is increased, and the self-cleaning and self-cleaning capabilities are strong.

The rotary sealing connector 6 includes a fixed cylinder body 62 and a moving cylinder body 66, one end of the moving cylinder body 66 is coaxially sleeved in the fixed cylinder body 62, and the moving cylinder body 66 is rotatably connected with the fixed cylinder body 62. A plurality of annular sealing grooves 67 are arranged side by side on the outer surface of the end of the cylinder body 66, and a plurality of annular sealing rings 63 matching the annular sealing grooves 67 are arranged side by side on the inner wall of the fixed cylinder body 62, and the annular sealing rings 63 and The annular sealing groove 67 is in sealing and rotational connection, the free end 61 of the fixed cylinder 62 is fixedly connected with the main pipe 5 , and the free end 65 of the movable cylinder 66 is coaxially fixedly connected with the hollow rotating shaft 7 .

Wherein, the bottom of the annular sealing groove 67 is an arc-shaped bottom surface, the end of the annular sealing ring 63 is an arc-shaped convex surface matched with the arc-shaped bottom surface, and a seal is provided between the annular sealing groove 67 and the annular sealing ring 63. The assembly and production of the rubber ring between the fixed cylinder body 62 and the movable cylinder body 66 can be realized by using the existing technology, and it does not belong to the protection scope of the present invention and will not be described in detail.

Furthermore, a rotating support ring 64 can be added between the fixed cylinder body 62 and the moving cylinder body 66 to further ensure the fixed cylinder body 62 and the moving cylinder body 66 .

When the present invention is in use, at first the two ends of the hollow rotating shaft 7 are horizontally connected to the post-processing chamber at the end of the equipment so that the upper surface of the cylindrical filter cartridge 9 is closely attached to the port of the moisture discharge pipe, and then the open end of the hollow rotating shaft 7 is The shaft is fixedly connected to the free end 65 of the movable cylinder body 66, the free end 61 of the fixed cylinder body 62 is connected to the main pipe 5, and the sealed end of the hollow rotating shaft 7 extends out of the post-processing chamber and is fixed on the post-processing chamber by a servo motor. The motor 11 drives the rotation.

During the process of humidification, re-moisture, and drying, the cylindrical filter cartridge 9 and the round table filter cartridge 8 are always in a rotating state, so as to prevent substances such as shredded tobacco and tobacco stems from entering the moisture discharge pipe and affecting normal work. At the same time, whether it is in the state of excess waste gas in the extraction drum or in the state of hot gas circulation and reuse in the extraction drum, high-pressure gas can be passed into the hollow shaft 7 through the control of the electromagnetic valve 2 at any time to filter the cylindrical filter cartridge 9 and the round table. Tube 8 surface shredded tobacco, tobacco stem etc. are cleaned up. After the work is finished, the high-pressure liquid can also be passed into the hollow rotating shaft 7 by the control of the electromagnetic valve 3 to clean the surface ventilation holes 10 of the cylindrical filter cartridge 9 and the round table filter cartridge 8 .

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (5)

1. a kind of self-cleaning type filter screen net cylinder, which is characterized in that uniform at the both ends of cylindrical filter cartridge including cylindrical filter cartridge Body formed to be coaxially provided with rotary table cartridge filter, the interior end of the cylindrical filter cartridge without leave outward direction of the rotary table cartridge filter gradually becomes Small, uniform array is laid with multiple ventilation holes in cylindrical filter cartridge and rotary table cartridge filter surface, two rotary table cartridge filters it Between be coaxially fixed with hollow axle, the both ends of hollow axle are stretched out except rotary table cartridge filter, and one end of hollow axle is sealing End, the other end is open end, and multiple puff prots are uniformly provided on hollow axle, and the puff prot is located at cylindrical filter cartridge and circle In platform cartridge filter, the sealed end of hollow axle is sequentially connected with servo motor, and the open end of hollow axle is connected by rotatory sealing Fitting is connected to main pipeline, and the free end of main pipeline is communicated with the first lateral and second branched pipe road, in the first lateral With electromagnetic valve is mounted on second branched pipe road, the end of the first lateral is connected with pneumatic supply, second branched pipe The end in road is connected with water pressure source.

2. self-cleaning type filter screen net cylinder according to claim 1, which is characterized in that the ventilation hole is taper ventilation The diameter in hole, taper ventilation hole is gradually reduced from cylindrical filter cartridge or rotary table cartridge filter to outside direction along radial direction.

3. self-cleaning type filter screen net cylinder according to claim 1, which is characterized in that the rotary seal connection includes Safety barrel body and dynamic cylinder, described dynamic cylinder one end is coaxially socketed in safety barrel body and dynamic cylinder and safety barrel body are rotatablely connected, dynamic Multiple annular seal grooves are equipped on barrel end outer surface side by side, are equipped with multiple and annular seal groove side by side on determining cylinder inboard wall The annular sealing ring matched, the annular sealing ring and annular seal groove sealing are rotatablely connected, the free end of the safety barrel body It is fixedly connected with main pipeline, the free end of the dynamic cylinder is fixedly and coaxially connected with hollow axle.

4. self-cleaning type filter screen net cylinder according to claim 3, which is characterized in that the ring packing trench bottom is arc Shape bottom surface, the end of the annular sealing ring are the arc convex matched with lower arcuate surface.

5. self-cleaning type filter screen net cylinder according to claim 3, which is characterized in that in annular seal groove and ring packing Sealing rubber ring is equipped between ring.