CN220125820U - Cyclone separator for flue gas filtration - Google Patents

Abstract

The utility model discloses a cyclone separator for filtering flue gas, which comprises an exhaust pipe for exhausting gas, wherein the exhaust pipe is provided with a filter frame and a positioning ring, the filter frame is provided with a cavity communicated with the exhaust pipe, the positioning ring is provided with a filter screen for filtering dust, the positioning ring is attached to the inner side wall of the cavity and moves and can move through the exhaust pipe, the exhaust pipe is provided with a clamping block axially moving along the exhaust pipe, the positioning ring is provided with a clamping groove matched with the clamping block, and when the positioning ring moves to drive the filter screen to cover the exhaust pipe, the clamping block moves to extend into the clamping groove to fix the position of the filter screen.

Description

Cyclone separator for flue gas filtration

Technical Field

The utility model relates to the technical field of cyclone separator equipment.

Background

The boiler is a common combustion heat-generating device, the combustion of the boiler can generate a large amount of flue gas carrying dust and other impurities, the flue gas is usually required to be filtered, the dust and other impurities in the flue gas are filtered, and the remaining clean gas is discharged into the atmosphere, wherein the cyclone separator is used for filtering the dust and other impurities in the flue gas;

the cyclone separator generally comprises a cylinder body, an inlet pipe arranged along the tangential direction of the cylinder body, a dust exhaust pipe arranged below the cylinder body, and an exhaust pipe arranged above the cylinder body, wherein flue gas with dust enters from the inlet pipe, solids are discharged from the dust exhaust pipe through the action of centrifugal force, and gas is discharged from the exhaust pipe, but when the cyclone separator is actually implemented, a small part of fine dust still follows the gas to be discharged from the exhaust pipe, so that the separation effect is influenced, and the discharged external environment is also influenced.

Disclosure of Invention

The utility model mainly aims to solve the defects in the prior art and provides a cyclone separator with improved filtering and separating efficiency.

The technical scheme adopted by the utility model is as follows: the utility model provides a cyclone for flue gas filtration, is including being used for exhaust gas's blast pipe, the blast pipe is equipped with strain frame and holding ring, strain the frame open have with the cavity that the blast pipe is linked together, the holding ring is equipped with the filter screen that is used for filtering the dust, the holding ring laminating is removed and movable the passing in the inside wall of cavity the blast pipe, the blast pipe is equipped with along blast pipe axial displacement's fixture block, the holding ring open have with fixture block matched with draw-in groove moves the holding ring drives the filter screen covers when the blast pipe, the fixture block removes to stretch into in the draw-in groove and make filter screen position fix.

The filter frame is provided with a pushing block which moves in the same direction with the clamping block and can move to stretch into the cavity, the pushing block is fixedly connected with the clamping block, the part of the pushing block which stretches into the cavity is in an inclined plane shape matched with the locating ring, the locating ring pushes the pushing block to move, the clamping block is driven to move back into the exhaust pipe when moving, the exhaust pipe is provided with a spring, and the spring is in contact with the clamping block and pushes the clamping block to move into the cavity.

The filter frame is provided with a screw rod arranged along the moving direction of the positioning ring, the screw rod is kept on the filter frame to rotate, a nut is connected with screw threads of the screw rod, a sliding block which is identical to the moving direction of the positioning ring is fixedly connected with the nut, and the sliding block is driven by the low rod to push the positioning ring to move.

The filter frame is provided with an inlet for the positioning ring to enter the cavity and an outlet for the positioning ring to move out of the cavity, and the sliding block corresponds to the inlet in position.

Wherein, the lead screw extends out of the filter frame and is fixedly connected with a control valve.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the filter screen is installed, the positioning block enters the cavity of the filter frame from the inlet to seal the filter frame, then the control valve is rotated to drive the positioning block to move, and when the positioning block and the filter screen move to a position capable of blocking the exhaust pipe, the clamping block stretches into the clamping groove to fix the position of the filter screen so as to complete the installation work of the filter screen, and the filter screen can filter out substances such as dust and impurities mixed in the circulating gas in the exhaust pipe so as to improve the separation efficiency of the cyclone separator.

2. When the filter screen is replaced, the positioning block enters the cavity of the filter frame from the inlet, the filter frame is closed, then the control valve is rotated to drive the positioning block to move, the positioning block can push the pushing block to drive the clamping block to move out of the clamping groove of the original positioning block, the original positioning block is in a movable state, then the replaced positioning block pushes the original positioning block to move to the outlet of the filter frame, the replaced positioning block is fixed in position through the clamping block, the original positioning block is taken out of the outlet, the replacement of the filter screen is completed, and the replacement mode can be used for replacing the filter screen outside the filter frame during the operation of the cyclone separator without stopping the cyclone separator, so that the working efficiency of the cyclone separator is guaranteed under the condition of convenient replacement operation.

Drawings

FIG. 1 is a perspective view of a cyclone separator;

FIG. 2 is a schematic view of the positioning ring in the filter frame;

FIG. 3 is a schematic view of the structure of the positioning ring in a fixed position;

FIG. 4 is a schematic diagram of a structure in which a screw drives a slide block to move;

FIG. 5 is a schematic diagram of a pusher block implementation;

in the figure: 1. an exhaust pipe; 2. a filter frame; 3. a positioning ring; 4. a cavity; 5. a filter screen; 6. a clamping block; 7. a clamping groove; 8. a pushing block; 9. a spring; 10. a screw rod; 11. a nut; 12. a slide block; 13. an inlet; 14. an outlet; 15. and a control valve.

Detailed Description

The utility model is further illustrated by way of example with reference to the accompanying drawings.

As shown in fig. 1 to 5, the cyclone separator for flue gas filtration according to this embodiment includes an exhaust pipe 1 for exhausting separated gas, the exhaust pipe 1 is provided with a filter frame 2 and a positioning ring 3, the filter frame 2 is rectangular block-shaped and is arranged along the radial direction of the exhaust pipe 1, namely, when the exhaust pipe 1 is arranged vertically, the filter frame 2 is arranged along the horizontal direction, the filter frame 2 is fixedly connected with the exhaust pipe 1 in an integrated forming or welding mode, the filter frame 2 is provided with a cavity 4, the cavity 4 extends along the length direction of the filter frame 2, the cavity 4 is also in a cuboid, the cavity 4 penetrates through the side wall of the exhaust pipe 1 and is communicated with the inner space of a scheduling pipe, and the arrangement of the filter frame 2 and the cavity 4 is symmetrically arranged with the position of the exhaust pipe 1 as the center.

The filter frame 2 is provided with an inlet 13 and an outlet 14 on two sides of the exhaust pipe 1 respectively, the inlet 13 comprises a first opening communicated with the cavity 4, the first opening is matched with the shape of the positioning ring 3, the positioning ring 3 can enter the cavity 4 from the first opening, the inlet 13 further comprises a first door plate hinged with the filter frame 2, the first door plate can rotate to the first opening and seal the first opening in a blocking manner, the first door plate is fixedly clamped with the filter frame 2 in a locking manner through a door lock or the like, the blocking of the first door plate to the first opening or the removal of the first door plate from the first opening is controlled, and a sealing strip can be arranged between the first door plate and the filter frame 2 so as to prevent the circulation of gas.

The outlet 14 comprises a second opening and a second door plate, the arrangement mode of the second opening and the second door plate is the same as that of the first opening and the first door plate, and the outlet 14 is used for moving the positioning ring 3 out of the cavity 4 and sealing the filter frame 2.

The locating ring 3 is the center and opens the square block-shaped that has circular through-hole, the locating ring 3 can be rectangle or square, the locating ring 3 corresponds with the width of cavity 4 and is longer than the diameter of blast pipe 1, when the locating ring 3 is arranged in cavity 4, the lateral wall of locating ring 3 about and the direction of movement can laminate mutually with the inside wall of cavity 4 and put in cavity 4 and remove, the through-hole on the locating ring 3 can be the same or be less than the inside diameter of blast pipe 1 with the inside diameter of blast pipe 1, be provided with filter screen 5 in the through-hole, filter screen 5 accessible buckle or welded mode are fixed in the through-hole, filter screen 5 is arranged in filtering from blast pipe 1 through dust and other impurity in the gas, the air can pass through in the space of filter screen 5.

The locating ring 3 can be placed in the cavity 4 and move and pass through the exhaust pipe 1, the exhaust pipe 1 is provided with a clamping block 6, the clamping block 6 is annular, a cavity for the clamping block 6 to move axially along the exhaust pipe 1 is formed in the side wall of the exhaust pipe 1 connected with the lower end of the filter frame 2, the clamping block 6 can be completely placed in the cavity and move out of the cavity, namely move into the cavity 4 of the filter frame 2, the lower end of the locating ring 3 is provided with a clamping groove 7, the clamping groove 7 is annular matched with the clamping block 6, and when the through hole on the locating ring 3 moves to correspond to the position of the exhaust pipe 1, namely, when the filter screen 5 and the locating ring 3 block the exhaust pipe 1, the clamping block 6 can move into the clamping groove 7, so that the position of the locating ring 3 is fixed, and the filter screen 5 can filter a fluid ventilation body in the exhaust pipe 1.

The exhaust pipe 1 is provided with the spring 9, the spring 9 is arranged in the cavity of the exhaust pipe 1, the spring 9 is in contact with the clamping block 6, the clamping block 6 can be pushed to extend into the cavity 4 through the elasticity of the spring 9 and keep the state of extending into the cavity 4, the clamping block 6 is ensured to stably extend into the clamping groove 7, and the filter screen 5 is enabled to continuously filter the gas flowing in the exhaust pipe 1.

The filter frame 2 is provided with a pushing block 8, the bottom surface of the cavity 4 of the filter frame 2 is provided with a cavity for the pushing block 8 to move along the axial direction of the exhaust pipe 1, the cavity of the filter frame 2 can be communicated with the cavity of the exhaust pipe 1 for the clamping block 6 to move, the pushing block 8 is L-shaped, the pushing block 8 is welded and fixed with the clamping block 6, the pushing block 8 and the clamping block 6 synchronously move, the end part of the pushing block 8 extending into the cavity 4 is in an inclined plane shape and keeps only the inclined plane shape, when the positioning block moves from the position of an inlet 13 of the cavity 4 to the position of the exhaust pipe 1, the positioning block firstly collides with the inclined plane end part of the pushing block 8, the pushing block 8 can move back into the cavity of the filter frame 2 and drive the clamping block 6 to move back into the cavity of the exhaust pipe 1, so that the positioning block can move to the position of the exhaust pipe 1 or move away from the position of the exhaust pipe 1, and when the positioning block does not collide with the pushing block 8, the pushing block 8 and the clamping block 6 can move again through the action of a spring 9 to extend into the cavity 4.

The filter frame 2 is provided with a screw rod 10, the screw rod 10 is arranged along the moving direction of the positioning ring 3, namely along the extending direction of the cavity 4, the screw rod 10 is arranged in the filter frame 2 to perform autorotation, the screw rod 10 can extend out of the filter frame 2 and is fixedly welded with a control valve 15, and the rotation of the screw rod 10 can be conveniently controlled outside the filter frame 2 by operating the rotation of the control valve 15.

The screw rod 10 is connected with a nut 11 through threads, the nut 11 is fixedly welded with a sliding block 12, the sliding block 12 extends into the cavity 4 and keeps moving along the extending direction of the cavity 4, when the screw rod 10 is rotated, the sliding block 12 is driven to reciprocate along the extending direction of the cavity 4 because the sliding block 12 limits the rotation of the nut 11, the sliding block 12 and the screw rod 10 are arranged at the inlet 13, when a positioning block enters the cavity 4 from the inlet 13, the sliding block 12 is driven by the rotation control valve 15 to move, and the positioning block is driven by the sliding block 12 to move in the cavity 4, so that the filter screen 5 can be installed and replaced in a closed state of the filter frame 2.

Claims (5)

1. The cyclone separator for flue gas filtration comprises an exhaust pipe for exhausting gas, and is characterized in that the exhaust pipe is provided with a filter frame and a positioning ring, the filter frame is provided with a cavity communicated with the exhaust pipe, the positioning ring is provided with a filter screen for filtering dust, the positioning ring is attached to the inner side wall of the cavity and moves and can move through the exhaust pipe, the exhaust pipe is provided with a clamping block axially moving along the exhaust pipe, the positioning ring is provided with a clamping groove matched with the clamping block, the positioning ring moves to drive the filter screen to cover the exhaust pipe, and the clamping block moves to stretch into the clamping groove to fix the position of the filter screen.

2. The cyclone separator as claimed in claim 1, wherein the filter frame is provided with a pushing block which moves in the same direction as the clamping block and can be moved to extend into the cavity, the pushing block is fixedly connected with the clamping block, a part of the pushing block extending into the cavity is in an inclined plane shape matched with the positioning ring, the positioning ring pushes the pushing block to move so as to drive the clamping block to move back into the exhaust pipe, and the exhaust pipe is provided with a spring which is in contact with the clamping block and pushes the clamping block to move into the cavity.

3. The cyclone separator as claimed in claim 1, wherein the filter frame is provided with a screw rod arranged along the moving direction of the positioning ring, the screw rod is kept on the filter frame to rotate, a nut is connected with the screw rod in a threaded manner, a sliding block which is in the same moving direction as the positioning ring is fixedly connected with the nut, and the screw rod is rotated to drive the sliding block to push the positioning ring to move.

4. A cyclone separator as claimed in claim 3, wherein the filter frame is provided with an inlet for the retaining ring to enter the cavity, an outlet for the retaining ring to be removed from the cavity, the slider corresponding to the position of the inlet.

5. A cyclone separator as claimed in claim 3, wherein the screw extends out of the filter frame and is fixedly connected with a control valve.