CN210687028U - Lifting type air locking device - Google Patents

Abstract

The utility model discloses a lifting type air locking device, which comprises an ash discharge barrel, wherein the top of the ash discharge barrel is connected with a dust outlet of a dust remover, an ash discharge device is arranged in the ash discharge barrel, the ash discharge device comprises a lifting mechanism, a conical plate and a turnover mechanism, the bottom of the lifting mechanism is fixed at the bottom of the ash discharge barrel, the top of the lifting mechanism is connected with the conical plate, and the lifting mechanism can drive the conical plate to move up and down; the turnover mechanism comprises a fixing part and a turnover part, the fixing part is fixedly arranged on the side wall of the ash discharging barrel, one end of the turnover part is connected with the fixing part, the other end of the turnover part is abutted to the lifting mechanism, and the fixing part can support the turnover part to turn over at the bottom of the ash discharging barrel. The utility model aims at providing a lifting type air locker avoids the heavy hammer type air locker lever to lead to not being tight by passing equipment from inside to outside, and causes the equipment to leak out.

Description

Lifting type air locking device

Technical Field

The utility model relates to a gas locking ware technical field mainly relates to an over-and-under type gas locking ware.

Background

The air lock has the main function of ensuring smooth dust removal and avoiding air leakage to the maximum extent under the condition that higher negative pressure exists in the dust remover. For a general cyclone dust collector, dust-containing flue gas enters from the upper part of the dust collector in a tangential direction and rotates spirally from top to bottom. Due to the action of centrifugal force, the steam flow rotates downwards along the wall surface, and after reaching the bottom (some of the steam flow can extend into the ash hopper), 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 hopper, the negative pressure value is much higher than that of the inlet of the dust remover and is generally close to or even exceeds that of the outlet of the dust remover, and therefore the dust remover has to keep high sealing in the ash discharging process. The experimental result shows that when the air leakage rate of the air locking dust remover reaches 5%, the dust removal efficiency of the dust remover is reduced by 50%, and when the air leakage rate is increased to 15%, the dust removal efficiency is almost reduced to zero.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lifting type air locking device, avoided weight formula air locking device lever to pass equipment by inside to outside and lead to sealed not tight, can arouse equipment air leakage, also avoided the weight swing to make equipment operation unstable and probably harm the part simultaneously.

The utility model discloses a following technical scheme realizes:

a lifting type air locking device comprises an ash discharge barrel, wherein the top of the ash discharge barrel is connected with a dust outlet of a dust remover, an ash discharge device is arranged in the ash discharge barrel and comprises a lifting mechanism, a conical plate and a turnover mechanism, the bottom of the lifting mechanism is fixed at the bottom of the ash discharge barrel, the top of the lifting mechanism is connected with the conical plate, and the lifting mechanism can drive the conical plate to move up and down; the turnover mechanism comprises a fixed part and a turnover part, the fixed part is fixedly arranged on the side wall of the ash discharge barrel, one end of the turnover part is connected with the fixed part, the other end of the turnover part is abutted against the lifting mechanism, and the fixed part can support the turnover part to turn over towards the bottom of the ash discharge barrel; when the ash discharging device is in a non-working state, the conical plate is in contact with the side wall of the ash discharging cylinder, the turnover part is abutted against the lifting mechanism, and the ash discharging cylinder is sequentially divided into a first chamber, a second chamber and a third chamber from top to bottom; when the ash discharging device is in a working state, the second chamber is not communicated with the first chamber and the third chamber simultaneously.

When the ash discharging device is in a non-working state, the ash discharging cylinder sequentially forms 3 cavities from top to bottom, when dust in a first cavity connected with a dust outlet of the dust remover reaches a certain amount, the conical plate gradually descends under the action of pressure, the first cavity is communicated with the second cavity, so that dust in the first cavity enters the second cavity and is accumulated on the turnover plate, and meanwhile, the conical plate gradually ascends to separate the first cavity from the second cavity. When dust weight on the turnover plate reaches a certain value, the turnover plate is turned downwards under the action of pressure, and the second chamber is communicated with the third chamber, so that dust on the turnover plate enters the third chamber, and meanwhile, the turnover plate is turned upwards again to be abutted against the lifting mechanism, so that the second chamber is separated from the third chamber.

Further, elevating system includes dead lever, movable rod and spring, the bottom of dead lever is fixed in the bottom of ash discharge tube, the inside cavity of dead lever, the spring fix set up in the inside of dead lever, the one end of movable rod is located the inside of dead lever, and with spring fixed connection, the other end of movable rod expose in the dead lever with the conical plate is connected.

Further, the fixed part includes two counterweights, the counterweights symmetry set up in on the lateral wall of ash discharge tube.

Further, the upset portion includes the returning face plate of two symmetry settings, the one end of returning face plate with the fixed part is articulated, the other end of returning face plate is provided with the breach, works as the returning face plate with during elevating system butt, the breach with elevating system's in close contact with. So that a closed space is formed between the turnover plate and the conical plate to prevent air leakage.

Further, the first chamber is cylindrical.

Further, the second chamber is in a shape of a long cylinder.

Further, the third chamber is rectangular.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

the device is simple in structure and easy to install, the phenomenon that the lever of the heavy hammer type air locker penetrates through the device from inside to outside to cause poor sealing and cause air leakage of the device is avoided, and meanwhile, the phenomenon that parts can be damaged due to unstable operation of the device caused by swinging of the heavy hammer is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of an embodiment of the present invention;

fig. 2 is a schematic view of the lifting mechanism of the present invention moving downward;

reference numerals: 1. a tapered plate; 2. a first chamber; 3. a second chamber; 4. a third chamber; 5. fixing the rod; 6. a movable rod; 7. a counterweight; 8. and (5) turning over the plate.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Examples

As shown in the figures 1-2 of the drawings,

the utility model provides a lifting type airlock, includes an ash discharge tube, the top of ash discharge tube is connected with the dust outlet of dust remover, the ash discharge tube comprises cylinder and cuboid intercommunication setting, and the diameter of cylinder is less than the width of cuboid. Be provided with the ash discharging device in the ash discharging barrel, the ash discharging device includes elevating system, conical plate 1 and tilting mechanism, elevating system includes dead lever 5, movable rod 6 and spring, dead lever 5 is L shape and inside cavity, the bottom of dead lever 5 weld in the bottom of ash discharging barrel lateral wall, the spring fix set up in the inside of dead lever 5, the one end of movable rod 6 is located the inside of dead lever 5, and with spring fixed connection, the other end of movable rod 6 expose in dead lever 5 with conical plate 1 connects, movable rod 6 can drive conical plate 1 reciprocates. When the dust above the conical plate 1 is excessive, the weight of the dust is larger than the elastic force of the spring, the movable rod 6 compresses the spring downwards and drives the conical plate 1 to move downwards, and the dust on the conical plate 1 falls off from the conical plate 1; at the moment, under the action of the upward elastic force of the spring, the movable rod 6 moves upwards to drive the conical plate 1 to move upwards until the balance state of the spring is reached. The turnover mechanism comprises two pairs of balance weights 7 and turnover plates 8 which are symmetrically arranged, the balance weights 7 are arranged on the side wall of the ash discharge barrel, one end of each turnover plate 8 is hinged to the corresponding balance weight 7, and the balance weights 7 can support the turnover plates 8 to overturn at the bottom of the ash discharge barrel. The other end of the turnover plate 8 is provided with a notch, and when the other end of the turnover plate 8 is abutted to the lifting mechanism, the notch is in close contact with the lifting mechanism. So that a closed space is formed between the turnover plate 8 and the conical plate 1 to prevent air leakage. When dust is not piled up on the turnover plate 8 or the weight of piled up dust is less than the balance weight 7 is right during the elasticity of turnover plate 8, turnover plate 8 with the butt of dead lever 5, work as dust weight on the turnover plate 8 is greater than the balance weight 7 is right during the elasticity of turnover plate 8, turnover plate 8 to the bottom upset of ash discharging tube for dust on the turnover plate 8 falls into the bottom of ash discharging tube. Meanwhile, as the downward pressure of the turnover plate 8 is lost, the turnover plate 8 is turned over again to be abutted against the fixed rod 5 under the action of the balance weight 7.

In this embodiment, the maximum dust weight that the turnover mechanism can bear is N times (N is an integer) of the maximum dust weight that the lifting mechanism can bear. When ash discharge device is in the non-operating condition, conical plate 1 with the lateral wall contact of cylinder, returning face plate 8 with 5 butts of dead lever, ash discharge cylinder separates into first cylinder cavity, second cuboid cavity and third cuboid cavity from last to down in proper order. When dust reaches a certain amount in the first cylinder cavity of connecting dust remover dust outlet, toper board 1 descends gradually under the effect of pressure, first cylinder cavity and second cuboid cavity intercommunication this moment for dust in the first cylinder cavity gets into in the second cuboid cavity, and piles up gradually on the returning face plate 8, because the dust weight that tilting mechanism bore is N times of the dust weight that elevating system bore, tilting mechanism can not overturn downwards under the gravity of dust this moment. Meanwhile, the conical plate 1 loses downward pressure and rises upwards under the action of the elastic force of the spring, so that the first cylindrical cavity is separated from the second cuboid cavity. Treat that the dust falls completely from first cylinder cavity when on the returning face plate 8, returning face plate 8 overturns downwards under the pressure effect of dust, second cuboid cavity and third cuboid cavity intercommunication this moment to make the dust on the returning face plate 8 get into third cuboid cavity, returning face plate 8 upwards again simultaneously to with 5 butts of dead lever, make second cuboid cavity and third cuboid cavity separate.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (7)

1. A lifting type air locking device comprises an ash discharge barrel, wherein the top of the ash discharge barrel is connected with a dust outlet of a dust remover, and the lifting type air locking device is characterized in that an ash discharge device is arranged in the ash discharge barrel and comprises a lifting mechanism, a conical plate (1) and a turnover mechanism, the bottom of the lifting mechanism is fixed at the bottom of the ash discharge barrel, the top of the lifting mechanism is connected with the conical plate (1), and the lifting mechanism can drive the conical plate (1) to move up and down; the turnover mechanism comprises a fixed part and a turnover part, the fixed part is fixedly arranged on the side wall of the ash discharge barrel, one end of the turnover part is connected with the fixed part, the other end of the turnover part is abutted against the lifting mechanism, and the fixed part can support the turnover part to turn over towards the bottom of the ash discharge barrel; when the ash discharging device is in a non-working state, the conical plate (1) is in contact with the side wall of the ash discharging cylinder, the turnover part is abutted against the lifting mechanism, and the ash discharging cylinder is sequentially divided into a first chamber (2), a second chamber (3) and a third chamber (4) from top to bottom; when the ash discharging device is in a working state, the second chamber (3) is not communicated with the first chamber (2) and the third chamber (4) simultaneously.

2. The elevating airlock of claim 1, further comprising: elevating system includes dead lever (5), movable rod (6) and spring, the bottom of dead lever (5) set up in the bottom of ash discharge tube, the inside cavity of dead lever (5), the spring is fixed set up in the inside of dead lever (5), the one end of movable rod (6) is located the inside of dead lever (5), and with spring fixed connection, the other end of movable rod (6) expose in dead lever (5).

3. The elevating airlock of any one of claims 1 to 2, further comprising: the fixing part comprises two balance weights (7), and the balance weights (7) are symmetrically arranged on the side wall of the ash discharge barrel.

4. The elevating airlock of claim 3, wherein: the turnover part comprises two turnover plates (8) which are symmetrically arranged, one end of each turnover plate (8) is hinged to the corresponding fixed part, and the other end of each turnover plate (8) is provided with a notch which is in close contact with the lifting mechanism when the lifting mechanism is abutted against the turnover plates (8).

5. The elevating airlock of claim 4, wherein: the first chamber (2) is cylindrical.

6. The elevating airlock of claim 5, wherein: the second chamber (3) is in a long cylindrical shape.

7. The elevating airlock of claim 6, further comprising: the third chamber (4) is cuboid.

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