CN218609823U - A pulverized coal blowing type separation device for coal pulverizer - Google Patents

Abstract

The utility model discloses a pulverized coal air blowing separation device for a coal mill, which relates to the field of pulverized coal separation devices and comprises an air pump, the output end of the air pump is connected with an air distributor, and the outlet end of the air distributor is connected with a separation pipe , the end of the top of the separation pipe close to the air distributor is connected with a flat feed port, and the top of the flat feed port is connected with a feed hopper, one end of the flat feed port is equipped with a motor, and the output end of the motor is connected to a flat A rotating rod inside the feed inlet, on which a plurality of breaking columns are connected. The utility model uses an air pump to blow air into the separation pipe, and the gas is evenly distributed to the entire section of the separation pipe through the air distributor, and the flat feed port then transports the coal powder into the separation pipe in a waterfall shape, and the air can transport the particles of different sizes and weights into the separation pipe. The pulverized coal is blown out at different distances, so that the pulverized coal of different weights falls into the receiving pipes at different distances from the air pump, and the pulverized coal can be separated more thoroughly.

Description

A pulverized coal blowing type separation device for coal pulverizer

technical field

The utility model relates to the field of coal powder separation devices, in particular to a coal powder blowing type separation device for coal mills.

Background technique

Coal pulverizer is a machine that breaks coal and grinds it into coal powder. It is an important auxiliary equipment for pulverized coal furnace. Coal mills and other models, the coal pulverized by the coal mill is not uniform in size, so it needs to be separated.

The existing pulverized coal separation device of the coal mill generally separates pulverized coal of different sizes by using vibrating screens with different mesh densities.

However, through the separation of coal powder through the screen, the smaller coal powder may be mixed in the middle of the larger coal powder, and it cannot be sieved by the larger coal powder, and the screening of the coal powder is thorough enough.

Utility model content

Based on this, the purpose of this utility model is to provide a pulverized coal air-blowing separation device for a coal mill to solve the technical problem that the pulverized coal separation device for a coal pulverizer can sieve the pulverized coal thoroughly.

In order to achieve the above purpose, the utility model provides the following technical proposal: a pulverized coal blowing type separation device for coal mills, including an air pump, the output end of the air pump is connected to an air distributor, and the outlet end of the air distributor is connected to a separation The top end of the separation pipe close to the air distributor is connected to a flat feeding port, and the top of the flat feeding port is connected to a feeding hopper, and a motor is installed at one end of the flat feeding port, and the output end of the motor is connected to a The rotating rod inside the flat feeding port is connected with a plurality of breaking columns, and the bottom surface of the separating pipe is located at the end of the flat feeding port away from the air distributor, and is connected with a plurality of receiving pipes, and each receiving pipe The bottom is connected with a box cover, and the bottom of each box cover is slidably connected with a collection box.

By adopting the above technical scheme, the air distributor can diffuse the air evenly, and the flat feeding port can make the pulverized coal enter the separation pipe in a waterfall shape, which is convenient for separation. The feeding hopper can be used to temporarily store unseparated pulverized coal, and the motor can drive the rotating rod. Rotate to make the pulverized coal agitated by the dispersing column, so that the pulverized coal falls more smoothly, and the receiving pipe can cooperate with the box cover to pour the pulverized coal at different positions into the corresponding collection box.

The utility model is further configured that a check valve is connected to the output end of the air pump, and the air pipeline of the air distributor is in the shape of a lotus pod.

By adopting the above technical scheme, the one-way valve can prevent the pulverized coal from flowing back into the air pump to damage the air pump when the air pump is turned off, and the air distributor is in the shape of a lotus seedpod, which can make the air distributor diffuse and distribute air more evenly.

The utility model is further provided that the end of the separating pipe away from the air distributor is provided with a breathable filter, and the receiving pipes are all provided with anti-reverse blocks.

By adopting the above technical scheme, the air-permeable filter screen can facilitate the discharge of air from the separation pipe, and the anti-reverse block can prevent the pulverized coal in the collection box from flowing back.

The utility model is further configured as follows: the top surface of the box cover is provided with ventilating pipes, and the ventilating pipes are threadedly connected with dust filter nets.

By adopting the above-mentioned technical scheme, the ventilation pipe can facilitate the discharge of excess air in the collection box, and the dust filter can prevent coal powder from being discharged from the ventilation pipe.

The utility model is further provided that, both sides of the bottom surface of the box cover are provided with slide grooves, and both sides of the top surface of the collection box are provided with slide rails matched with the slide grooves.

By adopting the above technical solution, the chute cooperates with the slide rail to limit the movement of the collection box.

The utility model is further provided that, the bottom surface of the air pump and the separation pipe are both provided with brackets, and the bottom surfaces of the brackets are both connected with a bottom plate.

By adopting the above technical solution, the bracket cooperates with the bottom plate to make the device more stable.

The utility model is further provided that, the top surface of the bottom plate is provided with a supporting block for supporting the collection box, and handles are provided on the front of the collection box.

By adopting the above technical scheme, the bracket can facilitate the removal of the higher collection box, and the handle can facilitate the pulling of the collection box.

In summary, the utility model mainly has the following beneficial effects:

1. The utility model uses the air pump to blow air into the separation pipe, and the gas is evenly distributed to the entire section of the separation pipe through the air distributor. The flat feed port then transports the coal powder into the separation pipe in a waterfall shape, and the air can separate the particles of different sizes. The pulverized coal of different weights is blown out at different distances, so that the pulverized coal of different weights falls into the receiving pipe at different distances from the air pump, and the pulverized coal can be separated more thoroughly;

2. The utility model rotates and connects the rotating rod driven by the motor in the flat feeding port, and sets a plurality of breaking columns on the surface of the rotating rod. When the flat feeding port feeds materials into the separation pipe, the motor drives the rotating rod to rotate, thereby The pulverized coal is stirred by the breaking column, which can prevent the pulverized coal from being squeezed and blocked.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a sectional view of the utility model;

Fig. 3 is the enlarged view of A in Fig. 2 of the utility model;

Fig. 4 is an enlarged view of B in Fig. 2 of the present invention.

In the figure: 1. Air pump; 2. One-way valve; 3. Air distributor; 4. Separation pipe; 5. Feeding hopper; 6. Flat feeding port; 7. Motor; Column; 10, ventilation filter; 11, receiving pipe; 12, anti-reverse block; 13, box cover; 14, collection box; 15, ventilation pipe; 16, dust filter; 17, slide rail; 18, chute; 19 , handle; 20, bracket; 21, bottom plate; 22, supporting block.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

Below according to the overall structure of the utility model, its embodiment is described.

A pulverized coal air blowing separation device for a coal mill, as shown in Figure 1-4, includes an air pump 1, the output end of the air pump 1 is connected to an air distributor 3, which can diffuse air evenly, and the outlet end of the air distributor 3 is connected to There is a separation pipe 4, and the end of the top of the separation pipe 4 close to the air distributor 3 is connected with a flat feed port 6, so that coal powder can enter the separation pipe 4 in a waterfall for easy separation, and the top of the flat feed port 6 is connected with a feed The bucket 5 can be used to temporarily store unseparated pulverized coal. A motor 7 is installed at one end of the flat feed port 6, and the output end of the motor 7 is connected with a rotating rod 8 located inside the flat feed port 6. The rotating rod 8 is connected with multiple Breaking up the column 9, the motor 7 can drive the rotating rod 8 to rotate, so that the breaking up column 9 can stir the pulverized coal, so that the pulverized coal can fall more smoothly. A plurality of receiving pipes 11, and the bottom of each receiving pipe 11 is connected with a box cover 13, and the bottom of each box cover 13 is slidably connected with a collection box 14, and the receiving tubes 11 can cooperate with the box cover 13 to pour coal powder in different positions into corresponding in the collection box 14.

Please refer to Figure 2, the output end of air pump 1 is connected with a check valve 2, which can prevent the pulverized coal from flowing back into the air pump 1 and damage the air pump 1 when the air pump 1 is closed. The air distribution is more uniform, and the top surface of the box cover 13 is provided with a vent pipe 15, which can facilitate the discharge of excess air in the collection box 14, and the vent pipe 15 is all threaded with a dust filter 16, which can prevent coal dust from being discharged from the vent pipe 15. One end of separation pipe 4 away from air distributor 3 is provided with breathable filter screen 10, which can facilitate the discharge of air from separation pipe 4, and anti-reverse block 12 is all arranged in receiving pipe 11, which can prevent the backflow of pulverized coal in collection box 14.

Please refer to Fig. 3, both sides of the bottom surface of the case cover 13 are provided with chute 18, and both sides of the top surface of the collection box 14 are all provided with slide rails 17 that cooperate with the chute 18, and the chute 18 cooperates with the slide rail 17 to limit the collection. Box 14 movement.

Please refer to Fig. 1 and Fig. 2, the air pump 1 and the bottom surface of the separation pipe 4 are all provided with a support 20, and the bottom surface of the support 20 is connected with a bottom plate 21, and the support 20 cooperates with the bottom plate 21 to make the device more stable, and the top surface of the bottom plate 21 is provided with The supporting block 22 supporting the collection box 14 can facilitate the removal of the higher collection box 14, and the front of the collection box 14 is provided with a handle 19, which can facilitate pulling the collection box 14.

The working principle of the utility model is: when in use, start the air pump 1, the air passes through the one-way valve 2, and then distributes and blows the air into the separation pipe 4 through the air distributor 3, then the pulverized coal can be loaded into the feeding hopper 5, and the air is started. The motor 7, the motor 7 can drive the rotary rod 8 to rotate, so that the dispersing column 9 can stir the pulverized coal, and the pulverized coal can fall into the separation pipe 4 evenly and smoothly through the flat feeding port 6, and the air pump 1 blows the wind The pulverized coal of different weights can be blown out different distances, and fall into the collection box 14 through the receiving pipe 11 at different positions, and the air can be discharged through the breathable filter screen 10, and can prevent the pulverized coal from being blown out. The anti-block 12 can prevent the pulverized coal in the collection box 14 from being aroused by the air and flow back into the separation pipe 4. The excess air in the collection box 14 can be discharged through the vent pipe 15 on the box cover 13, and the dust filter 16 can prevent the pulverized coal from being discharged. When the collection box 14 is full, after the separation of the pulverized coal in the feed hopper 5 is completed, the air pump 1 is closed, and the check valve 2 can prevent the pulverized coal from flowing back into the air pump 1 to damage it, and then the handle 19 can be grasped to collect Box 14 is taken off along chute slide rail 17, and bracket block 22 can be convenient to take off the higher collecting box 14 of position, and support 20 and base plate 21 can make device more stable.

Although the embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model, and the specific features, structures, materials or characteristics described can be used in any Or multiple embodiments or examples are combined in a suitable manner, and those skilled in the art can make no creative contributions to the embodiments as required without departing from the principle and purpose of the utility model after reading this specification Amendments, replacements and variations, etc., but as long as they are within the scope of the claims of the utility model, they are all protected by the patent law.

Claims (7)

1. The utility model provides a buggy air blowing formula separator of coal pulverizer, includes air pump (1), its characterized in that: air pump (1) output is connected with gas distributor (3), and gas distributor (3) exit end is connected with separator tube (4), the one end that separator tube (4) top is close to gas distributor (3) is connected with flat feed inlet (6), and flat feed inlet (6) top is connected with feeder hopper (5), motor (7) are installed to flat feed inlet (6) one end, and motor (7) output is connected with bull stick (8) that are located flat feed inlet (6) inside, be connected with many on bull stick (8) and break up post (9), the one end that separator tube (4) bottom surface is located flat feed inlet (6) and keeps away from gas distributor (3) is connected with a plurality of takeover (11), and every takeover (11) bottom is connected with case lid (13), every case lid (13) bottom all sliding connection has collecting box (14).

2. The pulverized coal blowing type separating device of the coal mill as claimed in claim 1, which is characterized in that: the output end of the air pump (1) is connected with a one-way valve (2), and the air pipeline of the air distributor (3) is in a shower shape.

3. The pulverized coal blowing type separating device of the coal mill as claimed in claim 1, characterized in that: one end of the separation pipe (4) far away from the gas distributor (3) is provided with a breathable filter screen (10), and the receiving pipe (11) is internally provided with an anti-reflection block (12).

4. The pulverized coal blowing type separating device of the coal mill as claimed in claim 1, which is characterized in that: the top surface of the box cover (13) is provided with a vent pipe (15), and the vent pipe (15) is connected with a dust filtering net (16) in a threaded manner.

5. The pulverized coal blowing type separating device of the coal mill as claimed in claim 1, which is characterized in that: the two sides of the bottom surface of the box cover (13) are both provided with sliding grooves (18), and the two sides of the top surface of the collecting box (14) are both provided with sliding rails (17) matched with the sliding grooves (18).

6. The pulverized coal blowing type separating device of the coal mill as claimed in claim 1, which is characterized in that: the bottom surfaces of the air pump (1) and the separating tube (4) are both provided with a bracket (20), and the bottom surfaces of the brackets (20) are both connected with a bottom plate (21).

7. The pulverized coal blowing type separating device of the coal mill as claimed in claim 6, wherein: the top surface of the bottom plate (21) is provided with a supporting block (22) for supporting the collecting box (14), and the front surface of the collecting box (14) is provided with a handle (19).

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