CN212523350U

CN212523350U - Buffer type air lock

Info

Publication number: CN212523350U
Application number: CN202021189841.9U
Authority: CN
Inventors: 潘定平; 邓曦鹏; 邱诚; 邓贵文; 何亮; 徐文涛; 朱仕家; 李强林; 景江; 郑桂花
Original assignee: Chengdu Technological University CDTU
Current assignee: Chengdu Technological University CDTU
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-02-12
Anticipated expiration: 2030-06-24

Abstract

The utility model discloses a buffer type air lock, which comprises a hollow cylindrical shell, a rotating disc, a rotating shaft and a power mechanism; the rotating disc is transversely arranged in the shell and is matched with the inner diameter of the shell; the rotating shaft is arranged in the shell and is arranged along the axial direction of the shell, and the rotating shaft is fixedly connected with the rotating disc; the power mechanism is arranged at the end part of the rotating shaft; compared with the traditional heavy hammer type air lock, the utility model has the advantages that the design is ingenious, even when the rotating disc rotates to transport dust in the through groove, the space above the rotating disc and the space below the rotating disc can be in an isolated state, the sealing performance is ensured, the occurrence of air leakage is avoided, and the dust removal effect is improved; the device drives the rotating shaft to rotate through the motor to remove dust, so that the device is stable in operation and cannot damage the air locking device; in addition, the buffering formula airlock of this device is the action of continuity, and the condition that can not appear causing a large amount of dust of discharging suddenly because of the dust is more in the air takes place, and the dust exhaust rate is even and stable.

Description

Buffer type air lock

Technical Field

The utility model belongs to the technical field of the airlock technique and specifically relates to a buffering formula airlock for cyclone arranges ash.

Background

Cyclone dust collectors are a type of dust removing device. For the cyclone dust collector, the air lock mainly has the functions of ensuring smooth dust removal and avoiding air leakage to the maximum extent under the condition of high negative pressure in the cyclone dust collector. The dust removal mechanism of the cyclone dust collector is as follows: the dust-containing flue gas tangentially enters from the upper part of the dust remover and spirally rotates from top to bottom. Due to the action of centrifugal force, airflow rotates downwards along the wall surface, and after the airflow reaches the bottom (some airflow can extend into the ash bucket all the way), a core airflow column which rotates and rises strongly is formed, so that a higher negative pressure area is formed at the bottom of the dust remover or in the ash bucket, and the negative pressure value of the negative pressure area is much higher than that of the inlet of the dust remover and is generally closer to or even exceeds that of the outlet of the dust remover; the precipitator must therefore maintain a high degree of tightness during ash discharge.

At present, a relatively common air locker is a heavy hammer type air locker, but a lever of the heavy hammer type air locker penetrates through equipment from inside to outside to cause poor sealing, so that air leakage of the equipment is caused. There are studies showing that: when the air leakage rate of the air lock reaches 5%, the dust removal efficiency of the dust remover is reduced by 50%; when the air leakage rate of the air locker is increased to 15%, the dust removal efficiency is almost reduced to zero; in addition, the swinging of the weight air locker can cause unstable operation of the equipment and even damage to the components.

SUMMERY OF THE UTILITY MODEL

The utility model provides a buffer type air locking device which solves the technical problems of untight sealing and unstable operation of the traditional hammer type air locking device.

The utility model adopts the technical proposal that: buffer formula airlock, including hollow cylindric casing, still include:

the rotating disc is transversely arranged in the shell and is matched with the inner diameter of the shell;

the rotating shaft is arranged in the shell and is arranged along the axial direction of the shell, and the rotating shaft is fixedly connected with the rotating disc;

the power mechanism is arranged at the end part of the rotating shaft and used for driving the rotating shaft to rotate;

at least one through groove is formed in the rotating disc; the upper surface of the rotating disc is provided with two first baffles which are arranged oppositely at a certain distance, and the first baffles are fixedly connected with the shell; a dust inlet is arranged between the two first baffles; a second baffle is arranged on the lower surface of the rotating disc and fixedly connected with the shell, and a notch is formed in the second baffle; the dust inlets and the notches are arranged in a staggered mode in the longitudinal direction; the rotating disc may close or open the dust inlet during rotation.

The utility model discloses a buffer type air lock, which drives the rotating shaft to rotate through the power mechanism, and further drives the rotating disc fixedly connected with the rotating shaft to rotate synchronously; when the through groove of the rotating disc rotates to be right below the dust inlet, the dust inlet and the notch are arranged in a staggered mode in the longitudinal direction, so that dust enters the through groove through the dust inlet; at this moment, the bottom that the second baffle that is located the rolling disc below can seal logical groove is in isolated state between the space of rolling disc top and the space of rolling disc below, and the air current is obstructed between the two, just also plays sealed effect between them. The rotating disc continues to rotate, the dust in the through grooves rotates along with the rotating disc, and the through grooves play a role in conveying the dust; when the through groove of the rotating disc rotates to the upper part of the notch, dust in the through groove falls into the space below the second baffle through the notch, and then is discharged through the dust hopper. Compared with the traditional heavy hammer type air lock, the utility model has the advantages that the design is ingenious, even when the rotating disc rotates to transport dust in the through groove, the space above the rotating disc and the space below the rotating disc can be in an isolated state, the sealing performance is ensured, the occurrence of air leakage is avoided, and the dust removal effect is improved; the device drives the rotating shaft to rotate through the power mechanism for dust removal, so that the device is stable in operation and cannot damage the air locking device; in addition, the buffering formula airlock of this device is the action of continuity, and the condition that can not appear causing a large amount of dust of discharging suddenly because of the dust is more in the air takes place, and the dust exhaust rate is even and stable.

Furthermore, the through grooves are eight and are uniformly distributed along the circumference of the rotating disc, and the cross sections of the through grooves are fan-shaped. The dust removal can be continuously carried out, so that the dust removal rate is more uniform and stable.

Furthermore, the inner wall of the through groove is provided with a dust removing brush facing the second baffle, and the bottom of the dust removing brush is flush with the bottom of the rotating disc. The dust removal brush can sweep away the dust that adheres to at the second baffle upper surface, avoids the long-time accumulation of dust at second baffle upper surface scale deposit, and then influences the operation of rolling disc.

Further, a guide plate is connected to the upper portion of the first baffle plate. The deflector plays the guide effect to the dust, because the deflector is the tilt state, the dust drops to the deflector after the effect of gravity along with the automatic dust entry that falls to of inclined plane of deflector to effectively avoid the dust accumulation at first baffle upper surface.

Furthermore, the guide plate and the first baffle plate are made of metal materials, so that the guide plate is good in stability, wear-resistant and low in cost.

Furthermore, the guide plate and the first baffle are integrally formed, so that the connection stability of the guide plate and the first baffle is further improved.

Furthermore, the second baffle is made of ceramic, the surface of the ceramic is smooth, the abrasion to the rotating disc is small, and dust is not easy to adsorb.

Furthermore, the rotating disc is made of metal materials, so that the rotating disc is good in stability, wear-resistant and low in cost.

Furthermore, the power mechanism is a stepless speed change motor, the performance is reliable and stable, and accurate rotation and speed regulation can be realized.

The utility model has the advantages that:

1. the rotary disc of the utility model can keep the space above the rotary disc and the space below the rotary disc in an isolated state while rotating and transporting dust in the through groove, thereby ensuring the sealing performance, avoiding the occurrence of air leakage and improving the dust removal effect; meanwhile, the buffer type air locking device of the device is in continuous action, the situation that a large amount of dust is discharged suddenly due to more dust in the air can not occur, and the dust discharging speed is uniform and stable.

2. The utility model discloses a power unit drive pivot is rotated and is removed dust, and the operation is more stable, can not harm the lock gas ware.

3. The utility model discloses a deflector plays the guide effect to the dust, and the dust drops to and enters the mouth along with the automatic dust that falls in inclined plane of deflector under the effect of gravity behind the deflector to effectively avoid the dust accumulation at first baffle upper surface.

4. The utility model discloses a dust removal brush can sweep the dust of adhering to at second baffle upper surface, avoids the long-time accumulation of dust at second baffle upper surface scale deposit, and then influences the operation of rolling disc.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an assembly schematic of the present invention.

Fig. 3 is a schematic structural diagram of the rotating disk of the present invention.

Labeled as:

1. a housing; 2. rotating the disc; 3. a rotating shaft; 4. a first baffle plate; 5. a second baffle; 6. a guide plate; 8. a dust inlet;

21. a through groove; 22. a dust removal brush; 51. and (4) a notch.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Example one

Referring to fig. 1, 2 and 3, the buffer type air-lock device of the present invention includes a hollow cylindrical housing 1, and further includes:

the rotating disc 2 is transversely arranged in the shell 1 and is matched with the inner diameter of the shell 1;

the rotating shaft 3 is arranged in the shell 1 and is arranged along the axial direction of the shell 1, and the rotating shaft 3 is fixedly connected with the rotating disc 2;

a power mechanism (not shown in the figure) arranged at the end of the rotating shaft 3 and used for driving the rotating shaft 3 to rotate;

eight through grooves 21 are formed in the rotating disc 2; the upper surface of the rotating disc 2 is provided with two first baffles 4 which are arranged oppositely at a certain distance, and the first baffles 4 are fixedly connected with the shell 1; a dust inlet 8 is arranged between the two first baffles; a second baffle plate 5 is arranged on the lower surface of the rotating disc 2, the second baffle plate 5 is fixedly connected with the shell 1, and a gap 51 is formed in the second baffle plate 5; the dust inlet 8 and the notch 51 are arranged offset in the longitudinal direction; the rotating disc may close or open the dust inlet 8 during rotation.

Referring to fig. 3, the eight through grooves 21 are uniformly arranged along the circumference of the rotating disc 2, and the cross section of each through groove 21 is fan-shaped, so that dust can be continuously removed, and the dust discharging speed is more uniform and stable.

As a preferred mode, the power mechanism is a stepless speed change motor which has the characteristics of reliable performance and stable operation and can realize accurate rotation and speed regulation.

Preferably, the second baffle 5 is made of ceramic, which has a smooth surface, causes little wear to the rotating disk, and is less likely to adsorb dust. The rotating disc 2 is of a steel structure, and is good in stability, wear-resistant and low in cost.

Example two

Referring to fig. 3, on the basis of the first embodiment, the dust removing brush 22 facing the second baffle 5 is disposed on the inner wall of the through slot 21, and the bottom of the dust removing brush 22 is flush with the bottom of the rotating disc 2. The dust removal brush can sweep away the dust that adheres to at the second baffle upper surface, avoids the long-time accumulation of dust at second baffle upper surface scale deposit, and then influences the operation of rolling disc.

EXAMPLE III

Referring to fig. 1 and 2, on the basis of the first embodiment, the guide plate 6 is connected to the upper part of the first baffle 4, and the guide plate 6 is obliquely arranged; the guide plate 6 and the first shutter 4 are made of a metal material; the guide plate 6 is integrally formed with the first shutter 4. The deflector plays the guide effect to the dust, because the deflector is the tilt state, the dust drops to the deflector after the effect of gravity along with the inclined plane of deflector automatically to the dust entry to effectively avoid the dust to accumulate at first baffle upper surface

The working principle is as follows: when the device works, the power mechanism drives the rotating shaft to rotate, and further drives the rotating disc fixedly connected with the rotating shaft to synchronously rotate; when the through groove of the rotating disc rotates to the position right below the dust inlet, dust enters the through groove through the dust inlet; because dust entry and breach dislocation in vertical, the bottom that the second baffle that is located the rolling disc below can seal logical groove is in isolated state between the space of rolling disc top and the space of rolling disc below, and the air current is obstructed between the two, just also plays sealed effect between them. The rotating disc continues to rotate, the dust in the through grooves rotates along with the rotating disc, and the through grooves play a role in conveying the dust; when the through groove of the rotating disc rotates to the upper part of the notch, dust in the through groove falls into the space below the second baffle through the notch, and then is discharged through the dust hopper. Compared with the traditional heavy hammer type air lock, the utility model has the advantages that the design is ingenious, even when the rotating disc rotates to transport dust in the through groove, the space above the rotating disc and the space below the rotating disc can be in an isolated state, the sealing performance is ensured, the occurrence of air leakage is avoided, and the dust removal effect is improved; the device drives the rotating shaft to rotate through the power mechanism for dust removal, so that the device is stable in operation and cannot damage the air locking device; in addition, the buffering formula airlock of this device is the action of continuity, and the condition that can not appear causing a large amount of dust of discharging suddenly because of the dust is more in the air takes place, and the dust exhaust rate is even and stable.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Buffer formula airlock, including hollow cylindric casing (1), its characterized in that still includes:

the rotating disc (2) is transversely arranged in the shell (1) and is matched with the inner diameter of the shell (1);

the rotating shaft (3) is arranged in the shell (1) and is axially arranged along the shell (1), and the rotating shaft (3) is fixedly connected with the rotating disc (2);

the power mechanism is arranged at the end part of the rotating shaft (3) and is used for driving the rotating shaft (3) to rotate;

at least one through groove (21) is arranged on the rotating disc (2); two first baffle plates (4) which are arranged oppositely at a certain distance are arranged on the upper surface of the rotating disc (2), and the first baffle plates (4) are fixedly connected with the shell (1); a dust inlet (8) is arranged between the two first baffles; a second baffle (5) is arranged on the lower surface of the rotating disc (2), the second baffle (5) is fixedly connected with the shell (1), and a notch (51) is formed in the second baffle (5);

the dust inlet (8) and the notch (51) are arranged in a staggered mode in the longitudinal direction; the rotating disc can close or open the dust inlet (8) during rotation.

2. A cushioned airlock according to claim 1, wherein said through slots (21) are eight and are uniformly arranged along the circumference of the rotating disc (2), the cross section of the through slots (21) being sector-shaped.

3. A buffer airlock according to claim 1, wherein the inner wall of said through slot (21) is provided with a dust brush (22) facing the second baffle (5), the bottom of the dust brush (22) being flush with the bottom of the rotating disc (2).

4. The surge arrester as claimed in claim 1, wherein a guide plate (6) is attached to an upper portion of the first barrier (4).

5. The buffer airlock according to claim 4, wherein said guide plate (6) and said first baffle (4) are made of a metallic material.

6. A cushioned airlock according to claim 5, wherein said guide plate (6) is formed integrally with the first baffle (4).

7. A cushioned airlock according to claim 1, wherein said second baffle (5) is made of ceramic.

8. A cushioned airlock according to claim 1, wherein said rotating disc (2) is made of a metallic material.

9. The cushion-type airlock of claim 1, wherein said power mechanism is a continuously variable motor.