KR200147641Y1 - Rotor separator of air-inhalated type - Google Patents

Abstract

The present invention prevents slip injection of the raw material discharged by attaching several injection rods to the upper surface of the spray plate of the rotor, thereby widening the spraying state of the raw material radially to increase the classification efficiency of the raw material, as well as the conveying pipe for conveying the powder everywhere. The present invention relates to a classifier by an air suction rotor, which is composed of a cross-shaped transfer pipe constituting a branch pipe, and constitutes a corresponding number of cyclones, thereby achieving fine classification of fractions. The guide van is fixed, and a collision plate is formed by being connected to a normal feed tube for supplying raw materials. In the guide van, a rotor, which is directly connected to a rotating shaft of a normal motor, is mixed at a portion and coarse by rotating at high speed. Raw materials of sediment and separated fractions are transferred through cyclone and bag filter through transfer pipe In the air-suction classifier that generates high-quality refined powder, forming a plurality of dispersion rods on the upper surface of the distribution plate of the rotor, and forming the outer blades tapered to a smaller diameter from the top to the bottom, The transfer pipe has a feature consisting of a cross-shaped transfer pipe branched in all directions and connected to several cyclones.

Description

Classifier by air suction rotor

The present invention relates to a classifier by a pneumatic suction rotor for the separation of ceramic powders such as ceramics, glass, cement, fryer, slaked lime, refractory, etc., and relates to an improved design of the patent application No. 96-12233 filed by the present applicant. will be.

In general, in the classifier of air suction type, the difference of classification efficiency occurs up to 30 ~ 50% according to the method of air inhalation. In particular, the classifier using sieve does not exceed 30% efficiency. In terms of difficulties, there is a limit in throughput. In another method, an injector supplied through a feed hopper is included in a high speed air stream (15 to 40 m / s) which is usually formed by a compressor, and the determinant is determined by the flow velocity, flow pressure, and flow of the gas. Based on the energy, the sieves were separated in the cyclone. The classifier is formed in a state in which the powder and the solid are in close contact with each other or are mixed with each other, and since the powder component is usually an unnecessary component in the classifier, a classifier was used to separate the powder and the solid into the cyclone.

A classifier using a conventional Korean Patent Application Publication No. 93-8502 cyclone has been devised.

In this classifier, grain, cement and petrochemical related raw materials can be processed. For example, raw materials such as polyethylene, PVC, and nylon are not only adsorbed to the raw materials in the usual three-dimensional form but also transported by air. In the process of conveying through the device, powder is generated by collision with the inner wall of the pipe or elbow, damper, or branching edge of the pipe material, and the powder is adsorbed to the solid and transferred to the state of injection body. In the case of injection or spinning using a processing machine, the surface of the injection product becomes poor due to the powder. Therefore, a separator is used before flowing into the injection machine, the spinner, etc. It didn't work.

That is, in the cyclone classifier, the flow rate of the exhaust gas is changed based on the cross-sectional area and the flow rate of the flow path after the reverse rise and the powder is contained in the gas, the discharge rate is not continuous, and the collision is repeated again. There was a problem in reducing the classification efficiency and reliability of the classifier.

The problems with the air-suction cyclone classifiers, which have been blinded as described above, have been solved through the patent application No. 96-12233 filed by the present applicant, and the guidebens are fixedly formed in the inside of the air intake, and the raw material is supplied. A collision plate was formed by connecting to the injection tube, and the rotor, which is directly connected to the rotating shaft of the motor, was rotated at a high speed to separate the raw materials mixed into the coarse powder and the fine powder.

However, the classifier is difficult to obtain a smooth injection state of the raw material because it is not provided with a means for spraying the raw material radially wide by preventing the slip of the raw material is formed on the rotor and discharged to the upper surface of the rotating spray plate, In addition, when the fractions falling through the rotor are rapidly discharged to the lower portion of the elbow-shaped transfer pipe to be transported to the cyclone, the cracks and partial abrasion phenomenon are caused.

In addition, since the rotor is configured in a drum form, a part of coarse particles falling while forming a curve due to high-pressure air inhalation is introduced into the rotor, and thus it is difficult to obtain a good classification state.

Therefore, the present invention was developed to solve the conventional problems, and its purpose is to prevent the slip spraying of the raw material discharged by attaching several spraying rods to the upper surface of the spraying plate of the rotor, thereby spreading the spraying state of the raw material widely and radially As well as improving the classification efficiency of the star, the transfer pipe for conveying the fine powder consists of a cross-shaped transfer pipe constituting the branch plate in all directions, and by the number of cyclones corresponding to the classification by the air suction-type rotor that achieves fine classification of starch In providing a flag.

1 is an exemplary view showing the classifier of the present invention as a whole.

2 is a vertical cross-sectional view of the classifier according to the present invention.

Figure 3 is an enlarged cross-sectional view of the classifier main extract according to the present invention.

Figure 4 shows the rotor of the classifier according to the present invention, the upper side is a plan view of a part incision state and the lower side is a longitudinal sectional view.

* Explanation of symbols for main parts of the drawings

10 motor 11 rotation shaft

20: rotor 21: dispersion plate

22: spoke 24: braid

25: dispersion rod 30: guide ben

31: crash plate 32: guide paddle

40: transfer pipe 41: buffer part

In order to achieve the above object, the present invention provides a collision plate formed by fixing a plurality of guide vans inside the air inlet and connecting to a normal feed tube for supplying raw materials. The rotor, which is directly connected to the rotor, rotates at a high speed to separate ordinary raw materials mixed into flour and coarse powder, and the separated fraction is fed to an air inhalation classifier that generates high-quality fractions by removing foreign substances through cyclones and bag filters through transfer pipes. In the distribution plate of the upper part of the rotor to form a plurality of dispersion rods and the outer shape of the braid from the top to the lower taper configuration, as well as the transfer pipe is branched in all directions and several cyclones and It is characterized by a cross-shaped feed pipe connected.

In addition, the present invention has another feature provided with a buffer portion of the semi-circular arc shape to alleviate the impact of the high-speed discharged portion in the lower portion of the cross-shaped transfer pipe.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

1 is an exemplary diagram showing the classifier of the present invention as a whole.

A represents a classifier, the classifier (A) is fixed to the rotor 20 by connecting the coupling to the rotary shaft 11 of the motor 10 with the speed regulator upward.

This rotor is attached to the distribution plate 21 is formed with a shaft hole (21a) at the top and the outer shape is formed radially plate-shaped braid 24 formed a gap of a constant interval, the lower spoke 22 bearing This built-in cone-shaped support rod 23 is sulcused.

The guide ben 30 is installed outside of the rotor 20, which is installed inside the air suction port 33 formed by the upper and lower abdominal plates. On one side of the shaft hole, an input pipe 12 is inserted, and a collision plate 31 is projected downward on the bottom of the upper abdominal plate, and a plurality of guide paddles 32 are firmly on the outside of the collision plate. It is fixed, and the air intake port is formed so that the intake portion of the Z-shaped can suck the outside air. In addition, when the rotor is rotated rapidly, the raw material is pulverized or separated between the impingement plate 31 and the fixed guide paddle 32 so that the fine grains are transported to the cyclone 50 and the bag filter 60 through the transfer pipe 40. The fine powder refined through the production is generated and the coarse powder is guided down to the classification chamber 35 and is contained in the coarse powder bin 36 composed of a double valve.

The separated powder is dropped from the cyclone 50 via the transfer pipe 40 and stored in the powder container 51.

In addition, a care pump is installed on the upper portion of the cyclone 50 so that compressed air passes through the pipe and is ejected from the cyclone to remove the adsorbed portion of the bag filter 60.

In addition, the upper side of the cyclone is connected to the exhaust pipe, and the flexible tube 70 for preventing vibration is connected, and the vacuum pump 80 is installed at the end, so that the air sucked into the suction part of the air inlet 33 together with the essential portion. While flowing in the transfer pipe, flexible tube, and cyclone, the powder is dropped into the powder container 51, and the air passes through the bag filter 60, passes through the exhaust pipe, passes through the flexible tube, and passes through the exhaust pump of the vacuum pump 80 in the atmosphere. In other words, what constitutes a series of cycles to be discharged, the above is described in the patent application No. 96-12233, which is filed by the applicant, and the present invention merely distributes several dispersions to the upper surface of the dispersion plate 21 of the rotor 20. The plate 25 is attached and fixed several times, and the radial braid 24 constituting the outer shape of the rotor is made into a tapered shape having a smaller diameter from the upper side to the lower side. It consists of a cross-shaped feed tube 40 separate the transfer tube 40 in all directions for transporting the cyclone and provide a 50 to his number and the same number.

The transfer pipe 40 is configured in the lower portion of the circular arc-shaped buffer portion 41 to suppress the bumping phenomenon of the fraction discharged at high speed to suppress cracking and wear of the transfer pipe.

Reference numeral 26 in the drawing shows the coarse powder mixing prevention spoke which is located in the front end of the transfer pipe inscribed to the spoke of the lower rotor.

Referring to the operation and effect of the classifier by the air suction rotor according to the present invention configured as described above are as follows.

That is, in the state in which power is supplied to the motor 10 and the vacuum pump 80, when the slag is discharged to the hopper, a certain amount of raw material is supplied to the input pipe 12, and the raw material is supplied to the guide ben 30 and the rotor 20. The coarse powder is stored in the coarse powder cylinder 36 through the lower classification chamber 26, while the fine powder is passed through the transfer pipe 40 and the anti-vibration flexible tube 70 and the transfer pipe through the cyclone 50. When it is stored in the powder box 51, the air of the suction part is distributed with the powder and separated from the powder in the cyclone, and is also discharged into the exhaust pipe and discharged into the exhaust network by the vacuum pump 80.

In other words, the raw material discharged through the input pipe 12 falls on the upper surface of the dispersion plate 21 of the rotor, and the dispersion plate 21 which rotates in conjunction with the rotating shaft of the motor 10 rotates at a high speed in all directions. It is scattered and sprayed, and the falling raw materials are applied by gravity, drag, centrifugal force, and inertial force to disperse and separate the raw materials. Thus, the raw materials are rotated by the rotor 20, the guideben 30, and the collision plate by the overall momentum. Shocked by (31), the raw material is completely dispersed and separated.

In this case, as shown in FIG. 4, several dispersion plates 25 joined by bolting methods smoothly spread the raw materials to facilitate spraying, so that the impact plates collide with the impingement plate 31. Dispersion separation is good.

In this way, the fraction of the raw material is introduced into the braid 24 of the rotor while being injured by the suction force of the vacuum pump 80 and the rotational force of the rotor 20, and sequentially passed through the spokes 22 below the rotor to transfer the tube ( 40), wherein the circular arc-shaped buffer portion 41 is formed at the lower portion of the transfer pipe 40 to prevent abrasion and cracks over the lower portion of the cross-shaped transfer pipe 40 due to high speed discharge. Lose.

Afterwards, the centrifugal force is generated in the cyclone 50, and centrifugal separation occurs. As the fraction is helically moved downward, the fraction particles gradually fall to the bottom while rotating along the inner wall of the cyclone 50. The air is stored in the powder box 51 and the air rises from the bottom of the cyclone 50, passes through the bag filter 60, and is discharged into the atmosphere from the vacuum pump 80 through the exhaust pipe.

On the other hand, the coarse powder mixed in the raw material is impacted by the guide ben 30 and the collision plate 31 based on the rotation of the rotor 20 is not dispersed and separated, but falls into the classification chamber by gravity and the coarse powder 36 Is stored in.

During the falling coarse powder, the upper part is inclined by the suction force of the vacuum pump 80 to be introduced into the braid 24 of the rotor, but the braid of the rotor is tapered so as to have a smaller diameter from the top to the bottom. Part of the falling coarse powder is not approached on the braid 24 side of the rotor so that the coarse powder is not mixed in the fine powder, and the coarse powder mixing prevention spoke 26 is fitted to the upper end of the transfer pipe 40 so that Since the spoke 22 is inscribed into the inner surface, a part of the falling coarse powder is prevented from entering the gap between the upper end of the conveying pipe.

The present invention described as described above has several dispersion rods installed on the upper surface of the rotor dispersing plate so that the spraying state of raw materials containing crude and coarse powders is widely spread and sprayed in all directions. In order to obtain an efficient classification condition, the outer shape of the rotor is made downward in small diameter so that some coarse powder does not flow into the braid of the rotor during high-speed air intake through the vacuum pump. It is possible to obtain the fine powder, and also to form a buffer portion in the lower portion of the transfer pipe having branch pipes in all directions, thereby having the effect of suppressing the life extension and impact noise of the transfer pipe due to the suppression of the occurrence of collision with the high-speed discharged fine powder.

The above is only one embodiment of the present invention, the present invention is capable of various changes and modifications within the scope of the configuration.

Claims (2)

A plurality of guide bens 30 arranged inside the air inlet 33 are fixed, and a collision plate 31 is formed by being connected to a normal input pipe 12 for supplying raw materials, and the inside of the guide ben 30. The rotor 20, which is directly connected to the rotating shaft of the conventional motor 10, is rotated at a high speed to separate ordinary raw materials mixed into the fine powder and the coarse powder, and the separated powder is divided into the cyclone 50 through the transfer pipe 40. In the air suction classifier that generates high-quality powder from which foreign matters are removed through the bag filter 60, several dispersion plates 25 are formed on the upper surface of the dispersion plate 21 on the rotor 20 to form an external shape. The braid 24 is tapered to a smaller diameter from the top to the bottom, as well as the transfer pipe 40 is composed of a cross-shaped transfer pipe 40 branched in all directions and connected to several cyclones 50. Air suction classifier characterized in that. The air suction classifier according to claim 1, wherein a semi-circular arc-shaped shock absorbing portion (41) is provided in the lower portion of the cross-shaped conveying pipe (40) for mitigating the impact of the high-speed discharged meal.