CN221190663U - Fluidization device of pneumatic ash conveying system - Google Patents

Fluidization device of pneumatic ash conveying system Download PDF

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Publication number
CN221190663U
CN221190663U CN202322687302.8U CN202322687302U CN221190663U CN 221190663 U CN221190663 U CN 221190663U CN 202322687302 U CN202322687302 U CN 202322687302U CN 221190663 U CN221190663 U CN 221190663U
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China
Prior art keywords
fluidization
pneumatic ash
conveying system
ash conveying
storage cylinder
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CN202322687302.8U
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Chinese (zh)
Inventor
杜臻
刘卫东
杨敏
刘宏祯
张立强
毕国轩
王国栋
冯志强
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Beijing Zhongdian Yongchang Technology Co ltd
National Energy Group Shanxi Shentou No 2 Power Plant Co ltd
National Energy Group Shanxi Electric Power Co ltd
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Beijing Zhongdian Yongchang Technology Co ltd
National Energy Group Shanxi Shentou No 2 Power Plant Co ltd
National Energy Group Shanxi Electric Power Co ltd
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Abstract

The utility model discloses a fluidization device of a pneumatic ash conveying system, which comprises a fluidization tank, an air inlet pipe and a discharge seat, wherein the air inlet pipe is fixed at the top of the fluidization tank, a first discharge channel and a second discharge channel are arranged in the discharge seat, a constant-pressure sealing mechanism is arranged in the second discharge channel, and the constant-pressure sealing mechanism seals the second discharge channel when the air pressure in the fluidization tank is reduced to a set value. According to the fluidization device of the pneumatic ash conveying system, when the air pressure in the fluidization tank is reduced to a set value in the later stage of the material discharging process, the first sealing plate automatically seals the second discharging channel, so that the material discharging flow area is reduced, the air pressure in the fluidization tank can not be rapidly reduced or kept at constant air pressure, and the high-pressure material discharging time is prolonged so as to achieve the effect of cleaning residual materials in the fluidization tank.

Description

Fluidization device of pneumatic ash conveying system
Technical Field
The utility model relates to the technical field of pneumatic ash conveying. In particular to a fluidization device of a pneumatic ash conveying system.
Background
Pneumatic ash conveying, also called air flow conveying, utilizes the energy of air flow to convey granular materials in the air flow direction in a closed pipeline, and is a specific application of fluidization technology.
The pneumatic fluidization device is one of the common devices in the pneumatic ash conveying system, most of the pneumatic fluidization devices in the prior art continuously reduce the air pressure in the fluidization device in the process of conveying materials to the ash conveying system, and when the fluidization device conveys the materials to the final stage, the air pressure in the fluidization device is reduced to be smaller, so that the materials are difficult to completely discharge, and a small amount of materials still remain in the fluidization device.
Disclosure of utility model
Therefore, the technical problem to be solved by the utility model is to provide a pneumatic ash conveying system fluidization device capable of completely discharging materials.
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a pneumatic ash conveying system fluidization device, includes fluidization jar, intake pipe and ejection of compact seat, the top at the fluidization jar is fixed to the intake pipe, be provided with first discharge channel and second discharge channel in the ejection of compact seat, install the constant pressure closing mechanism in the second discharge channel when the internal air pressure of fluidization jar drops to the setting value, the second discharge channel is sealed to the constant pressure closing mechanism.
Above-mentioned pneumatic ash conveying system fluidizer, constant pressure closing mechanism includes holds a power section of thick bamboo, first closure plate and connecting axle, hold a power section of thick bamboo fixed mounting on the inner wall of second discharge channel, the coaxial setting of connecting axle holds the inside of a power section of thick bamboo, just the connecting axle rotates with a power section of thick bamboo to be connected, the one end of connecting axle wears out and holds a power section of thick bamboo and with first closure plate fixed connection.
According to the fluidization device of the pneumatic ash conveying system, the scroll spring is arranged in the power storage cylinder, the outer end of the scroll spring is fixedly connected with the inner wall of the power storage cylinder, and the inner end of the scroll spring is fixedly connected with the outer surface of the connecting shaft.
According to the fluidization device of the pneumatic ash conveying system, the elastic block is arranged on one side, far away from the storage cylinder, of the first sealing plate, and the other side of the elastic block is attached to the inner wall of the second discharging channel.
According to the fluidization device of the pneumatic ash conveying system, the limiting block corresponding to the elastic block is arranged on the second discharging channel.
According to the fluidization device of the pneumatic ash conveying system, one side face, close to the elastic block, of the limiting block is set to be a smooth inclined face, and the other side face of the limiting block is set to be a limiting inclined face with anti-skid patterns.
According to the pneumatic ash conveying system fluidization device, the mounting groove is formed in the discharging seat above the first discharging channel.
According to the pneumatic ash conveying system fluidization device, the second sealing plate is matched in a sliding and sealing mode in the installation groove, and a stop block is arranged at one end, inserted into the installation groove, of the second sealing plate.
According to the fluidization device of the pneumatic ash conveying system, the top of the fluidization tank is provided with the feeding valve.
According to the fluidization device of the pneumatic ash conveying system, the pressure gauge is arranged on the fluidization tank.
The technical scheme of the utility model has the following beneficial technical effects:
According to the fluidization device of the pneumatic ash conveying system, when the air pressure in the fluidization tank is reduced to a set value in the later stage of the material discharging process, the first sealing plate automatically seals the second discharging channel, so that the material discharging flow area is reduced, the air pressure in the fluidization tank can not be rapidly reduced or kept at constant air pressure, and the high-pressure material discharging time is prolonged so as to achieve the effect of cleaning residual materials in the fluidization tank.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
FIG. 2 is a schematic view of the present utility model with enlarged portions of FIG. 1A;
FIG. 3 is a schematic view of the structure of the first closing plate of the present utility model;
FIG. 4 is a schematic cross-sectional view of a power storage cylinder according to the present utility model.
The reference numerals in the drawings are as follows: 1. a fluidization tank; 2. an air inlet pipe; 3. a discharging seat; 4. a first discharge channel; 5. a second discharge channel; 6. a constant pressure sealing mechanism; 601. a force storage cylinder; 602. a first closure plate; 603. a connecting shaft; 604. a spiral spring; 605. an elastic block; 606. a limiting block; 7. a mounting groove; 8. a second closure plate; 9. a feed valve; 10. a pressure gauge.
Detailed Description
Referring to fig. 1, a fluidization device of a pneumatic ash conveying system in this embodiment includes a fluidization tank 1, an air inlet pipe 2 and a discharge seat 3, the discharge seat 3 is connected with an external ash conveying system, the air inlet pipe 2 is fixed at the top of the fluidization tank 1, the external air conveying device can inject air into the fluidization tank 1 through the air inlet pipe 2, a first discharge channel 4 and a second discharge channel 5 are arranged in the discharge seat 3, a constant pressure sealing mechanism 6 is arranged in the second discharge channel 5, after the air injection into the fluidization tank 1 through the air inlet pipe 2 is completed, the discharge seat 3 is opened, a gas mixture in the fluidization tank 1 is discharged into the external ash conveying system through the first discharge channel 4 and the second discharge channel 5, when the air pressure in the fluidization tank 1 is reduced to a set value in the later stage of the discharge process, the constant pressure sealing mechanism 6 seals the second discharge channel 5, so that the discharge flow area is reduced, and because the air inlet pipe 2 injects air into the fluidization tank 1 continuously, the air pressure in the fluidization tank 1 does not rapidly drop or keep constant pressure again, and the residual high pressure discharge time is prolonged so as to achieve the effect of cleaning the residual material in the fluidization tank 1.
As shown in fig. 2 and 3, the constant pressure sealing mechanism 6 comprises a force storage cylinder 601, a first sealing plate 602 and a connecting shaft 603, wherein the force storage cylinder 601 is fixedly arranged on the inner wall of the second discharging channel 5, the connecting shaft 603 is coaxially arranged in the force storage cylinder 601, the connecting shaft 603 is rotationally connected with the force storage cylinder 601, and one end of the connecting shaft 603 penetrates out of the force storage cylinder 601 and is fixedly connected with the first sealing plate 602; as shown in fig. 4, a spiral spring 604 is installed in the power storage cylinder 601, the outer end of the spiral spring 604 is fixedly connected with the inner wall of the power storage cylinder 601, and the inner end of the spiral spring 604 is fixedly connected with the outer surface of the connecting shaft 603; as shown in fig. 2, an elastic block 605 is arranged on one side of the first closing plate 602 away from the power storage cylinder 601, and the other side of the elastic block 605 is attached to the inner wall of the second discharging channel 5; a limiting block 606 corresponding to the elastic block 605 is arranged on the second discharging channel 5, one side surface of the limiting block 606, which is close to the elastic block 605, is provided with a smooth inclined surface, the other side surface of the limiting block 606 is provided with a limiting inclined surface with anti-skid patterns, when the discharging seat 3 is opened after the internal pressure accumulation of the fluidization tank 1 is finished, the high-pressure gas mixture in the fluidization tank 1 flows into the discharging seat 3 and abuts against the first sealing plate 602 to rotate with the connecting shaft 603 as the axis, at the moment, the spiral spring 604 stores force, after the elastic block 605 passes through the smooth inclined surface of the limiting block 606, the limiting inclined surface of the limiting block 606 limits the first sealing plate 602, at the moment, the second discharging channel 5 is opened, and the first discharging channel 4 and the second discharging channel 5 simultaneously discharge materials; in the discharging process, the air pressure in the fluidization tank 1 is continuously reduced, because the friction force between the elastic block 605 and the limiting inclined plane of the limiting block 606 is larger, the first sealing plate 602 cannot reversely rotate or reversely rotate to a smaller extent, when the air pressure in the fluidization tank 1 is reduced to a set value, the spiral spring 604 drives the elastic block 605 to overcome the friction force between the elastic block 605 and the limiting inclined plane of the limiting block 606, the elastic block 605 passes through the limiting block 606, the first sealing plate 602 reversely rotates and seals the second discharging channel 5, and the elastic block 605 is slightly compressed and clings to the inner wall of the second discharging channel 5 during sealing, so that the sealing effect can be improved.
As shown in fig. 1 and 2, a mounting groove 7 is formed in the discharging seat 3 above the first discharging channel 4, a second sealing plate 8 is in sliding sealing fit in the mounting groove 7, a stop block is arranged at one end of the second sealing plate 8 inserted into the mounting groove 7, the discharging seat 3 can be opened by pulling out the second sealing plate 8, and the stop block can limit the second sealing plate 8, so that the second sealing plate 8 cannot be pulled out of the mounting groove 7 completely; the top of the fluidization tank 1 is provided with a feed valve 9, the feed valve 9 is connected with an external material conveying device (such as an ash bucket), and the fluidization tank 1 is provided with a pressure gauge 10, so that workers can conveniently observe the air pressure in the fluidization tank 1.
In the utility model, the working steps of the device are as follows:
1. After the materials enter the fluidization tank 1 through the feed valve 9, air is injected into the fluidization tank 1 through the air inlet pipe 2 to enable the interior of the fluidization tank 1 to accumulate pressure, after the set discharge pressure is reached, the second sealing plate 8 is pulled out to enable the discharge seat 3 to be opened, and high-pressure air-material mixture flows into the discharge seat 3;
2. The high-pressure gas mixture abuts against the first sealing plate 602 to rotate by taking the connecting shaft 603 as an axis, at the moment, the spiral spring 604 stores force, the elastic block 605 passes through the smooth inclined surface of the limiting block 606, the limiting inclined surface of the limiting block 606 limits the first sealing plate 602, at the moment, the second discharging channel 5 is opened, and the first discharging channel 4 and the second discharging channel 5 simultaneously discharge materials;
3. In the discharging process, the air pressure in the fluidization tank 1 is continuously reduced, because the friction force between the elastic block 605 and the limiting inclined plane of the limiting block 606 is larger, at this time, the first sealing plate 602 cannot reversely rotate or reversely rotate to a smaller extent, when the air pressure in the fluidization tank 1 is reduced to a set value, the spiral spring 604 drives the elastic block 605 to overcome the friction force between the elastic block 605 and the limiting inclined plane of the limiting block 606, the elastic block 605 passes through the limiting block 606, the first sealing plate 602 reversely rotates and seals the second discharging channel 5, so that the discharging flow area is reduced, and because the air inlet pipe 2 continuously injects air into the fluidization tank 1, at this time, the air pressure in the fluidization tank 1 cannot rapidly drop or keep constant air pressure, and the high-pressure discharging time is prolonged so as to achieve the effect of cleaning residual materials in the fluidization tank 1.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While the obvious variations or modifications which are extended therefrom remain within the scope of the claims of this patent application.

Claims (10)

1. The utility model provides a pneumatic ash conveying system fluidization device, its characterized in that includes fluidization tank (1), intake pipe (2) and ejection of compact seat (3), the top at fluidization tank (1) is fixed in intake pipe (2), be provided with first ejection of compact passageway (4) and second ejection of compact passageway (5) in ejection of compact seat (3), install in second ejection of compact passageway (5) and decide pressure closing mechanism (6) when atmospheric pressure falls to the setting value in fluidization tank (1), decide pressure closing mechanism (6) seal second ejection of compact passageway (5).
2. A pneumatic ash conveying system fluidization device according to claim 1, characterized in that the constant pressure sealing mechanism (6) comprises a force storage cylinder (601), a first sealing plate (602) and a connecting shaft (603), the force storage cylinder (601) is fixedly arranged on the inner wall of the second discharging channel (5), the connecting shaft (603) is coaxially arranged in the force storage cylinder (601), the connecting shaft (603) is rotationally connected with the force storage cylinder (601), and one end of the connecting shaft (603) penetrates out of the force storage cylinder (601) and is fixedly connected with the first sealing plate (602).
3. A pneumatic ash conveying system fluidization device according to claim 2, characterized in that a spiral spring (604) is installed in the power storage cylinder (601), the outer end of the spiral spring (604) is fixedly connected with the inner wall of the power storage cylinder (601), and the inner end of the spiral spring (604) is fixedly connected with the outer surface of the connecting shaft (603).
4. A pneumatic ash conveying system fluidization device according to claim 2, characterized in that one side of the first closing plate (602) far away from the accumulation cylinder (601) is provided with an elastic block (605), and the other side of the elastic block (605) is attached to the inner wall of the second discharging channel (5).
5. A pneumatic ash conveying system fluidization device according to claim 4, characterized in that the second discharging channel (5) is provided with a limiting block (606) corresponding to the elastic block (605).
6. A pneumatic ash handling system fluidization device according to claim 5, characterized in that one side of the limiting block (606) close to the elastic block (605) is provided with a smooth inclined surface, and the other side of the limiting block (606) is provided with a limiting inclined surface with anti-skid patterns.
7. A pneumatic ash conveying system fluidization device according to claim 1, characterized in that the discharge seat (3) is provided with a mounting groove (7) above the first discharge channel (4).
8. A pneumatic ash handling system fluidizer according to claim 7, characterised in that a second closing plate (8) is slidably and sealingly fitted in the mounting groove (7), and that a stop is provided at the end of the second closing plate (8) inserted into the mounting groove (7).
9. A pneumatic ash handling system fluidizer according to claim 1, characterised in that the top of the fluidizer (1) is provided with a feed valve (9).
10. A pneumatic ash handling system fluidizer according to claim 1, characterised in that the fluidizer (1) is provided with a pressure gauge (10).
CN202322687302.8U 2023-09-27 2023-10-08 Fluidization device of pneumatic ash conveying system Active CN221190663U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2023226293910 2023-09-27
CN202322629391 2023-09-27

Publications (1)

Publication Number Publication Date
CN221190663U true CN221190663U (en) 2024-06-21

Family

ID=91487468

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322687302.8U Active CN221190663U (en) 2023-09-27 2023-10-08 Fluidization device of pneumatic ash conveying system

Country Status (1)

Country Link
CN (1) CN221190663U (en)

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