Self-suction type dust removal air separation system

Abstract

The invention relates to the technical field of tobacco threshing and redrying, in particular to a self-suction type dust removal air separation system. The system comprises a high-speed belt conveyor, an internal circulation pipeline, an air separator, a blanking device, a water curtain dust remover air outlet pipeline, a water curtain dust remover, a water curtain dust remover air inlet pipeline and a fan, the high-speed belt conveyor is connected with a feeding hole of the air separator, and an outlet of the air separator is connected with the blanking device; the internal circulation pipeline comprises a first pipeline and a second pipeline, one end of the first pipeline is connected with the blanking device, and the other end is connected with the fan; the other end of the second pipeline is connected with the air separator; a connector is arranged on the second pipeline and connected with an air inlet pipeline of the water curtain dust remover, the other end of the air inlet pipeline of the water curtain dust remover is connected with an air inlet of the water curtain dust remover, an air outlet of the water curtain dust remover is connected with an air outlet pipeline of the water curtain dust remover, and the other end of the air outlet pipeline of the water curtain dust remover is connected with an air separator. The dust removal effect is improved, the air pressure in the air separator is adjusted, and the system structure is simplified.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco leaf threshing and re-drying, and in particular to a self-priming dust removal air separation system. Background Art

[0002] The leaf threshing and air separation unit is the most critical unit equipment in the tobacco leaf threshing and redrying production line. In the leaf threshing and air separation unit, the leaves are torn off the tobacco stems and the leaves and tobacco stems are separated at the same time. During the leaf threshing and air separation process, soot, dust and other dust will be generated, which will not only affect the quality of the leaves, but also cause serious harm to the operator's body.

[0003] The leaf beating air separator unit includes multiple air separation systems. In each air separation system, the dust-carrying material enters the air separator. Under the action of the wind field, the blades carry the dust into the feeder. The air and material are separated in the feeder. The dust enters the fan along with the air flow. Under the action of centrifugal force, the dust-free air flow continues to circulate in the air separation system. The dust-containing air flow enters the dust removal pipeline and enters the dust removal room of the redrying plant through the dust removal pipeline for dust removal. The part of the air flow after dust removal in the dust removal room is directly discharged into the air and is no longer used. The airflow lost in the system needs to be replenished through other channels. In addition to dust removal for multiple air separation systems, each dust collector in the dust removal room also needs to remove dust from other dust removal points at the same time. When the dust collector has a certain processing air volume, when other dust removal points increase the dust removal processing air volume, the dust removal processing air volume of the air separation system will decrease, reducing the dust removal effect and affecting the wind pressure inside the air separator. Moreover, the dust removal processing air volume of each air separation system cannot be adjusted, and it is not possible to adjust the wind pressure inside the air separator by adjusting the dust removal air volume. The distance between the dust removal room and the dust removal points of each air separation system varies greatly. The farther the distance, the greater the loss along the way, and the greater the resistance generated in the dust removal pipeline. The greater the resistance, the worse the dust removal effect. Therefore, the dust removal effect of each dust removal point in the leaf-beating air separation unit is not ideal. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a self-priming dust removal air distribution system, which improves the dust removal effect, does not need to supplement the lost airflow, and simplifies the system structure.

[0005] The present invention provides a self-priming dust removal air separation system, comprising: a high-speed belt conveyor, an internal circulation pipeline, an air separator, a material dropper, a water curtain dust collector air outlet pipeline, a water curtain dust collector, a water curtain dust collector air inlet pipeline, and a fan;

[0006] The high-speed belt conveyor is connected to the feed port of the air separator.

[0007] The outlet of the air separator is connected with the material dropper;

[0008] The internal circulation pipeline includes a first pipeline and a second pipeline.

[0009] One end of the first pipeline is connected to the material dropper, and the other end is connected to the fan;

[0010] One end of the second pipeline is connected to the fan, and the other end is connected to the air separator;

[0011] On the second pipeline, an interface is separated to connect with the air inlet pipeline of the water curtain dust collector, and the other end of the air inlet pipeline of the water curtain dust collector is connected to the air inlet of the water curtain dust collector.

[0012] The air outlet of the water curtain dust collector is connected to the air outlet pipeline of the water curtain dust collector, and the other end of the air outlet pipeline of the water curtain dust collector is connected to the air separator.

[0013] Preferably, the interface is close to the air outlet of the fan.

[0014] Preferably, two fans are included, and the connection method of the two fans is the same, with one end connected to the dropper through the first pipeline of the internal circulation pipeline, and the other end connected to the second pipeline of the internal circulation pipeline to connect to the air separator.

[0015] Preferably, one end of the first pipeline is connected to the air outlet of the blanking device, and the other end is connected to the air inlet of the fan;

[0016] One end of the second pipeline is connected to the air outlet of the fan, and the other end is connected to the air inlet of the air separator.

[0017] Preferably, the fan is a centrifugal fan, and the airflow and dust make circular motion in the volute of the centrifugal fan. Under the action of centrifugal force, the dust moves along the shell wall. The dust-free airflow at the outlet enters the air separator through the second pipeline for continued circulation, and the dust-containing airflow enters the air inlet pipeline of the water curtain dust collector through the interface separated at the fan outlet position.

[0018] Preferably, the water curtain dust collector is provided with a fan, and the air volume can be adjusted by adjusting the fan in the water curtain dust collector.

[0019] Preferably, the water curtain dust collector is close to the air separator.

[0020] Compared with the prior art, the self-priming dust removal air separation system of the present invention is equipped with a water curtain dust collector, and self-priming dust removal is realized inside the system, and there is no need to remove dust through the dust collector in the dust removal room; the airflow containing dust in the air separation system enters the air separator for recycling again after dust removal, and there is no need to replenish the lost airflow in large quantities through other channels; the water curtain dust collector is placed near the air separator in each air separation system, and compared with the dust removal pipeline connected to the dust removal room, the dust removal pipeline connected to the water curtain dust collector greatly shortens the length of the dust removal pipeline, reduces the loss along the dust removal pipeline, thereby greatly reducing the resistance generated in the dust removal pipeline and improving the dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1The front view of the self-priming dust removal air distribution system is shown;

[0022] Figure 2 It shows the left view of the self-priming dust removal air distribution system;

[0023] Figure 3 It shows the top view of the self-priming dust removal air distribution system;

[0024] In the figure,

[0025] 1-high-speed belt conveyor, 2-internal circulation pipeline, 3-air separator, 4-feeder, 5-water curtain dust collector outlet pipeline, 6-water curtain dust collector, 7-water curtain dust collector inlet pipeline, 8-fan, 9-air separator feed inlet, 10-air separator outlet, 11-feeder outlet, 12-fan inlet, 13-fan outlet, 14-air separator inlet, 15-water curtain dust collector inlet pipeline inlet, 16-water curtain dust collector inlet, 17-water curtain dust collector outlet, 18-water curtain dust collector outlet pipeline outlet. DETAILED DESCRIPTION

[0026] In order to further understand the present invention, the embodiments of the present invention are described below in conjunction with examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the present invention.

[0027] The embodiment of the present invention discloses a self-priming dust removal air separation system, such as Figure 1 to Figure 3 As shown, it includes: a high-speed belt conveyor 1, an internal circulation pipeline 2, an air separator 3, a dropper 4, a water curtain dust collector 6, a water curtain dust collector air inlet pipeline 7, and a fan 8;

[0028] The high-speed belt conveyor 1 is connected to the air separator feed port 9.

[0029] The high-speed belt conveyor 1 transports the dust-carrying material to the air separator 3. The airflow enters the air separator through the internal circulation pipeline 2. In the air separator 3, the dust enters the dropper 4 along with the airflow and the blades. The separation of the dust-carrying airflow and the blades is realized in the dropper 4. The dust enters the fan 8 along with the airflow. Under the action of centrifugal force, the dust moves along the shell wall, realizing the separation of the dust-free airflow and the dust-containing airflow; the air separator outlet 10 is connected to the dropper 4;

[0030] The internal circulation pipeline 2 includes a first pipeline and a second pipeline.

[0031] One end of the first pipeline is connected to the material dropper 4, and the other end is connected to the fan 8;

[0032] Specifically, one end of the first pipeline is connected to the air outlet 11 of the blanking device, and the other end is connected to the air inlet 12 of the fan;

[0033] One end of the second pipeline is connected to the fan 8, and the other end is connected to the air separator 3;

[0034] Specifically, one end of the second pipeline is connected to the fan air outlet 13, and the other end is connected to the air inlet 14 of the air separator;

[0035] On the second pipeline, an interface is separated to connect with the water curtain dust collector air inlet pipeline 7, and the other end of the water curtain dust collector air inlet pipeline 7 is connected to the water curtain dust collector air inlet 16.

[0036] The interface is close to the fan outlet 13;

[0037] The fans 8 include two fans, and the connection method of the two fans is the same, one end of each fan is connected to the blanking device 4 through the first pipeline of the internal circulation pipeline 2, and the other end is connected to the second pipeline of the internal circulation pipeline 2 to connect to the air separator 3;

[0038] The fan 8 is a centrifugal fan. The airflow and dust make circular motion in the volute of the centrifugal fan. The dust moves along the shell wall under the action of centrifugal force. The dust-free airflow at the outlet enters the air separator 3 through the second pipeline for continuous circulation. The dust-containing airflow enters the water curtain dust collector air inlet pipeline 7 through the interface separated at the air outlet of the fan.

[0039] The water curtain dust collector air outlet 17 is connected to the water curtain dust collector air outlet pipeline 5, and the other end of the water curtain dust collector air outlet pipeline 5 is connected to the air separator 3. Specifically, the water curtain dust collector air outlet pipeline air outlet 18 is connected to the air separator 3.

[0040] Each air distribution system is equipped with a water curtain dust collector. The system uses self-priming dust removal, and does not need to be dusted by the dust collector in the dust removal room.

[0041] The water curtain dust collector 6 is provided with a fan, and the air volume is adjusted by adjusting the fan in the water curtain dust collector. The dust removal processing air volume is adjusted according to the actual needs of the air separation system to adjust the internal wind pressure of the air separator and improve the dust removal effect.

[0042] The water curtain dust collector 6 is close to the air separator 3. Compared with the dust collection pipeline connected to the dust collection room, the dust collection pipeline connected to the water curtain dust collector greatly shortens the length of the dust collection pipeline and reduces the loss along the dust collection pipeline, thereby greatly reducing the resistance generated in the dust collection pipeline and improving the dust removal effect.

[0043] The working mode of the self-priming dust removal air distribution system described in the present invention is:

[0044] The dust enters the air separator 3 from the air separator feed port 9 along with the material, and the airflow enters the air separator 3 from the air separator air inlet 14 through the internal circulation pipeline 2. Under the action of the airflow, the dust enters the dropper 4 along with part of the material, and the material and the airflow are separated in the dropper 4. The dust enters the fan 8 from the dropper air outlet 11 along with the airflow. Under the action of the centrifugal force of the fan 8, the dust-free airflow directly enters the air separator 3 through the internal circulation pipeline 2 for continued circulation. The dust-containing airflow enters the water curtain dust collector air inlet pipeline 7 through the water curtain dust collector air inlet pipeline 15 and then enters the water curtain dust collector 6. The dust in the airflow is removed in the water curtain dust collector 6. The dust-free airflow enters the air separator 3 from the water curtain dust collector air outlet 17 through the water curtain dust collector air outlet pipeline 5 and is recycled again.

[0045] The airflow circulates in the air separator 3, the material dropper 4, the fan 8 and the water curtain dust collector 6 to achieve recycling, without the need to replenish the lost airflow in large quantities through other means.

[0046] The above embodiments are only used to help understand the method and core idea of ​​the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

[0047] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-priming dust removal air separation system, characterized in that: include: High-speed belt conveyor (1), internal circulation pipeline (2), air separator (3), material dropper (4), water curtain dust collector air outlet pipeline (5), water curtain dust collector (6), water curtain dust collector air inlet pipeline (7), fan (8); The high-speed belt conveyor (1) is connected to the air separator feed port (9). The air separator outlet (10) is connected to the dropper (4); The internal circulation pipeline (2) comprises a first pipeline and a second pipeline. One end of the first pipeline is connected to the material dropper, and the other end is connected to the fan; One end of the second pipeline is connected to the fan, and the other end is connected to the air separator; On the second pipeline, an interface is separated and connected to the water curtain dust collector air inlet pipeline (7), and the other end of the water curtain dust collector air inlet pipeline (7) is connected to the water curtain dust collector air inlet (16). The water curtain dust collector air outlet (17) is connected to the water curtain dust collector air outlet pipeline (5), and the other end of the water curtain dust collector air outlet pipeline (5) is connected to the air separator (3).

2. The self-priming dust removal air separation system according to claim 1 is characterized in that: The interface is close to the fan air outlet (13).

3. The self-priming dust removal air separation system according to claim 1 is characterized in that: It comprises two fans (8), and the connection method of the two fans (8) is the same, with one end of each fan connected to the dropper (4) through the first pipeline of the internal circulation pipeline, and the other end connected to the second pipeline of the internal circulation pipeline to connect to the air separator (3).

4. The self-priming dust removal air separation system according to claim 3 is characterized in that: One end of the first pipeline is connected to the air outlet (11) of the blanking device, and the other end is connected to the air inlet (12) of the fan; One end of the second pipeline is connected to the air outlet (13) of the fan, and the other end is connected to the air inlet (14) of the air separator.

5. The self-priming dust removal air separation system according to claim 1 is characterized in that: The fan (8) is a centrifugal fan. The airflow and dust make circular motion in the volute of the centrifugal fan. The dust moves along the shell wall under the action of centrifugal force. The dust-free airflow at the outlet enters the air separator through the second pipeline for continuous circulation, and the dust-containing airflow enters the water curtain dust collector air inlet pipeline (7) through the interface separated at the fan outlet.

6. The self-priming dust removal air separation system according to claim 1 is characterized in that: The water curtain dust collector (6) is provided with a fan, and the air volume is adjusted by adjusting the fan in the water curtain dust collector.

7. The self-priming dust removal air separation system according to claim 1 is characterized in that: The water curtain dust collector (6) is close to the air separator (3).

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