CN215861822U

CN215861822U - Ash gate slide valve for combustion furnace

Info

Publication number: CN215861822U
Application number: CN202120881359.XU
Authority: CN
Inventors: 李丰弟; 周鹏; 王方舟
Original assignee: Guangdong Polytechnic Bio Energy Co ltd
Current assignee: Guangdong Polytechnic Bio Energy Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2022-02-18
Anticipated expiration: 2031-04-27

Abstract

The invention relates to the technical field of thermal power generation, in particular to an ash gate slide valve for a combustion furnace, which comprises the following technical scheme: the utility model provides an ash brake slide valve for combustion furnace, includes frame and ash falling bucket, is provided with the driver part who is used for controlling the ash falling bucket switching on the frame, is provided with flashboard, its characterized in that in the ash falling bucket: the driving part is hinged with the flashboard, the driving part drives the flashboard to linearly and reciprocally slide in the direction away from the driving part or in the direction close to the driving part, and the discharge of furnace ash is controlled by opening and closing the flashboard. The invention has the advantages that: the gate plate of the ash gate slide valve does not need an additional elastic pressing device, so that the gate plate does not need to be maintained and replaced after the elastic part is abraded, the bottom plate carried by the gate plate reduces the friction resistance generated during sliding, the manufacturing difficulty of the ash gate slide valve is reduced, the service life of the ash gate slide valve is prolonged, and the ash gate slide valve is beneficial to preventing furnace ash from overflowing, so that the clean environment of a boiler room is kept.

Description

Ash gate slide valve for combustion furnace

Technical Field

The invention relates to the technical field of thermal power generation, in particular to an ash gate slide valve for a combustion furnace.

Background

In the thermal power generation technology, the sealing of an ash discharge port of a combustion furnace is very important, if the sealing is not good, the furnace ash can overflow, the environment cleanness of a boiler room is not favorably maintained, the negative pressure condition in the combustion furnace can be influenced, and the internal pressure of the combustion furnace is unstable; in the prior art, a flat gate valve is mostly adopted at an ash discharge port, and a sealing device with an elastic pressing device is required to be arranged between a frame and a sliding gate plate of the flat gate valve so as to ensure that the frame and the sliding gate plate have no gap and can be opened and closed in a sliding manner; however, the elastic pressing device is generally a nylon plate or a graphite fiber packing, and after the elastic pressing device is used for a period of time, the elastic part needs to be maintained and replaced, and meanwhile, the gate plate of the flat gate valve is very easy to damage due to resistance and thermal deformation generated during sliding, the service life is short, and the production requirement cannot be well met, so that further research and development improvement are needed.

Disclosure of Invention

One of the objects of the present invention is to overcome the said drawbacks by providing a durable and reliable ash gate slide valve for combustion furnaces without the need for additional elastic pressing means.

In order to achieve the purpose, the invention adopts the following technical scheme: an ash gate slide valve for a combustion furnace comprises a frame and an ash falling hopper, wherein the frame is provided with a driving part, the ash falling hopper is provided with an upper opening part and a lower opening part, a flashboard is arranged in the ash falling hopper and consists of a top plate, a middle plate, a bottom plate and a connecting block, the upper opening part of the ash falling hopper is connected with the combustion furnace through a fastener, the lower opening part of the ash falling hopper is connected with a next ash discharging device through a fastener, the driving part is hinged with the flashboard, the driving part drives the flashboard to linearly and reciprocally slide in a direction away from the driving part or in a direction close to the driving part, and when the flashboard slides to a stopping position in a direction away from the driving part, the ash gate slide valve is closed to prevent furnace ash from overflowing; when the flashboard slides to the stopping position in the direction close to the driving part, the ash sluice slide valve is opened to discharge the furnace ash.

Wherein, the connecting block setting of flashboard is on the roof upper surface, and roof and bottom plate pass through intermediate lamella welded connection, and the cross-section of bottom plate is right angled triangle, and right angle limit is forward, and bottom plate and the inboard lower surface sliding contact of frame reduce the frictional resistance of flashboard, and simultaneously, the right angle limit of bottom plate can be pushed away the cinder of taking the inboard lower surface of frame when opening the flashboard and fall in the ash bucket.

Wherein, the inboard left and right sides of frame is provided with adjustable wedge, is provided with adjusting bolt on the adjustable wedge, and the position of adjustable wedge can be adjusted through adjusting bolt, and the flashboard left and right sides is provided with the wedge guide block, and the wedge guide block slides on adjustable wedge, and when the flashboard toward closing the direction motion, the flashboard up lifting under the cooperation of wedge guide block and adjustable wedge, when the flashboard is in the complete closure state, the lower edge of opening is laminated completely on flashboard upper surface and the ash bucket, makes the ash gate slide valve be in inclosed state.

Wherein, the frame upper surface is provided with first trompil, and the hole edge of first trompil is provided with the chamfer to one side downwards, is provided with first apron in the first trompil, and the first apron size is 2~5mm less than first trompil, and the thickness of first apron thickness is 2~3mm less than the thickness of frame upper surface, and first apron can be in first trompil activity from top to bottom, and the activity can satisfy the amount of movement of upwards lifting under the effect of adjustable wedge, and first apron is provided with the second trompil.

Furthermore, the first cover plate is covered with a second cover plate, the second cover plate is provided with a third opening, the size of the third opening tends to be consistent with that of the connecting block, the connecting block penetrates through the second opening and the third opening from bottom to top to be connected with the driving part, the second cover plate performs linear reciprocating motion along with the connecting block, and the second cover plate can block excessive furnace dust in the frame.

Preferably, the first openings are diamond shaped.

Preferably, the first cover plate has a diamond shape.

Furthermore, the frame is provided with the proximity switch mount pad on the side of being close to driver part, and the proximity switch seat is the U style of calligraphy, and the proximity switch mount pad passes through the bolt and is connected with the frame, is provided with the slotted hole on the long limit of proximity switch mount pad U style of calligraphy, and proximity switch passes through the bolt fastening on the proximity switch mount pad, and proximity switch can adjust from beginning to end.

Preferably, the second cover plate is provided with a proximity switch induction block, and the stroke of the hydraulic oil cylinder can be set by adjusting the position of the proximity switch on the proximity switch mounting seat.

Preferably, the driving part is a hydraulic oil cylinder.

Preferably, the rotatable fastener is a pin.

Furthermore, the pin shaft is provided with a groove, the pin shaft is provided with a pressing plate, the pressing plate is clamped in the groove on the pin shaft and is connected with the connecting block through a fastening bolt, and the mode is firmer, simpler and more convenient than split pin connection.

Furthermore, the upper surface of the frame is provided with an ash removal opening, and the ash removal opening is provided with a cover.

The invention has the advantages that: the gate plate of the ash gate slide valve does not need an additional elastic pressing device, so that the gate plate does not need to be maintained and replaced after the elastic part is abraded, the bottom plate carried by the gate plate reduces the friction resistance generated during sliding, the manufacturing difficulty of the ash gate slide valve is reduced, the service life of the ash gate slide valve is prolonged, and the ash gate slide valve is beneficial to preventing furnace ash from overflowing, so that the clean environment of a boiler room is kept.

Description of the drawings:

FIG. 1 is a schematic perspective view of an ash sluice valve for a combustion furnace in accordance with example 1;

FIG. 2 is a schematic perspective view of a shutter plate of an ash gate spool for a combustion furnace according to example 1;

FIG. 3 is a schematic sectional view of an ash hopper of an ash sluice slide valve for a combustion furnace in accordance with example 1;

FIG. 4 is a top view of a frame of an ash gate slide valve for a combustion furnace of example 1;

FIG. 5 is a schematic sectional view of an ash sluice valve for a combustion furnace in accordance with example 1.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the description of the present invention, unless otherwise specified, the terms "upper, lower, inner, outer" and the like are included in the terms in an orientation that represents only an orientation of the term in a conventional use state or is colloquially understood by those skilled in the art, and should not be construed as limiting the term.

In the description of the present invention, in the different embodiments, the different technical features and the different technical solutions, there is no conflict between the technical features and the technical solutions, and the technical features and the technical solutions may be used in combination with each other.

The terms "comprising" and "having," and any variations thereof, in the description and claims of this invention and the drawings described herein are intended to cover non-exclusive inclusions.

Example 1: as shown in fig. 1-5, an ash gate slide valve for a combustion furnace comprises a frame 1 and an ash falling hopper 2, wherein a driving part 11 is arranged on the frame 1, the ash falling hopper 2 is provided with an upper opening part 21 and a lower opening part 22, a gate plate 20 is arranged in the ash falling hopper 2, the upper opening part 21 of the ash falling hopper 2 is connected with the combustion furnace through a fastener, the lower opening part 22 of the ash falling hopper 2 is connected with a next ash discharging device through a fastener, the driving part 11 is connected with the gate plate 20 through a rotatable fastener, the driving part 11 drives the gate plate 20 to slide back and forth, and when the gate plate 20 slides to a stopping position in a direction far away from the driving part 11, the ash gate slide valve is closed to prevent furnace ash from overflowing; when the shutter 20 slides in a direction approaching the driving member 11 to a stop position, the shutter slide valve is opened to discharge the ash.

Wherein, flashboard 20 comprises flashboard 201, bottom plate 202, intermediate lamella 203 and connecting block 204, and connecting block 204 sets up at flashboard 201 upper surface, and intermediate lamella 203 sets up at flashboard 201 lower surface, and bottom plate 202 sets up in intermediate lamella 203 below, and the cross-section of bottom plate 202 is right triangle, and the right-angle side is preceding, and bottom plate 202 and the inboard lower surface sliding contact of frame 1 reduce the frictional resistance of flashboard 20, and simultaneously, the right-angle side of bottom plate 202 can be pushed away the cinder that takes the inboard lower surface of frame 1 when flashboard 20 is opened to the ash falling bucket.

Wherein, the inboard left and right sides of frame 1 is provided with adjustable wedge 10, be provided with adjusting bolt 101 on the adjustable wedge 10, the position of adjustable wedge 10 can be adjusted through adjusting bolt 101, the flashboard 20 left and right sides is provided with wedge guide block 205, wedge guide block 205 slides on adjustable wedge 10, when flashboard 20 toward closing the direction motion, flashboard 20 up lifts under wedge guide block 205 and adjustable wedge 10's cooperation, when flashboard 20 is in the complete closure state, the lower edge of flashboard 20 upper surface and the last opening 21 of ash falling hopper 2 is laminated completely, make the ash gate slide valve be in airtight state.

Wherein, frame 1 upper surface is provided with first trompil 102, the hole edge of first trompil 102 is provided with the chamfer to one side down, be provided with first apron 103 in the first trompil 102, the size of first apron 103 is 2~5mm less than first trompil 102, the thickness of first apron 103 is 2~3mm less than the thickness of frame 1 upper surface, first apron 103 can be in first trompil 102 activity from top to bottom, the activity can satisfy the amount of movement of upwards lifting under the effect of adjustable wedge 10 as flashboard 20, first apron 103 is provided with second trompil 104.

Further, the first cover plate 103 is covered with a second cover plate 105, the second cover plate 105 is provided with a third opening 106, the size of the third opening 106 is consistent with that of the connecting block 204, the connecting block 204 penetrates through the second opening 104 and the third opening 106 from bottom to top to be connected with the driving part 11, the second cover plate 105 linearly reciprocates along with the connecting block 204, and the second cover plate 105 can block furnace dust overflowing from the inside to the outside of the frame 1.

Further, a proximity switch mounting seat 12 is arranged on one side, close to the driving part 11, of the frame 1, the proximity switch mounting seat 12 is U-shaped, the proximity switch mounting seat 12 is connected with the frame 1 through a bolt, a slotted hole 121 is formed in the long U-shaped edge of the proximity switch mounting seat 12, the proximity switch 13 is fixed on the proximity switch mounting seat 12 through a bolt, and the proximity switch 13 can be adjusted back and forth.

Preferably, the second cover plate 105 is provided with a proximity switch sensing block 107, and the stroke of the driving member 11 can be set by adjusting the position of the proximity switch 13 on the proximity switch mounting base 12.

Preferably, the driving part 11 is a hydraulic cylinder 110.

Preferably, the rotatable fastener is a pin 15.

Furthermore, the pin 15 is provided with a groove 151, the pin 15 is provided with a pressing plate 152, the pressing plate 152 is clamped in the groove 151 on the pin 15 and is connected with the connecting block 204 by a fastening bolt, and the mode is more firm and simple than split pin connection.

Further, the upper surface of the frame 1 is provided with an ash cleaning opening 16, the ash cleaning opening 16 is provided with a cover 161, when furnace ash is brought into the frame 1 and cannot be pushed back to the ash dropping hopper by the bottom plate 202, the cover 161 can be opened periodically, and manual ash cleaning or maintenance work can be carried out through the ash cleaning opening 16.

Example 2: preferably, in a preferred embodiment, hydraulic cylinder 12 of embodiment 1 may be replaced with air cylinder 120 in order to reduce the cost of the device and provide convenient driving.

It should be understood that the above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, therefore, all equivalent changes in the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an ash gate slide valve for combustion furnace, includes frame and ash falling bucket, is provided with the driver part who is used for controlling the ash falling bucket switching on the frame, and ash falling bucket is provided with upper shed portion and under shed portion, is provided with the flashboard in the ash falling bucket, and the flashboard comprises roof, intermediate lamella, bottom plate, connecting block, its characterized in that: the driving part is hinged with the flashboard and drives the flashboard to linearly and reciprocally slide in the direction away from or close to the driving part.

2. The gray gate slide valve for a combustion furnace as set forth in claim 1, wherein: the connecting block setting of flashboard is on the panel upper surface, and roof and bottom plate pass through intermediate lamella welded connection, and the cross-section of bottom plate is right angled triangle, and the right-angle side is forward, bottom plate and the inboard lower surface sliding contact of frame.

3. The gray gate slide valve for a combustion furnace as set forth in claim 1, wherein: the adjustable wedge blocks are arranged on the left side and the right side of the inner side of the frame, adjusting bolts are arranged on the adjustable wedge blocks, and wedge-shaped guide blocks are arranged on the left side and the right side of the flashboard.

4. The gray gate slide valve for a combustion furnace as set forth in claim 3, wherein: the frame upper surface is provided with first trompil, and the hole edge downside of first trompil is provided with the chamfer.

5. The gray gate slide valve for a combustion furnace as set forth in claim 3, wherein: be provided with first apron in the first trompil, the size of first apron is lighter than the size of first trompil, and the thickness of first apron is lighter than the thickness of frame upper surface, and first apron is provided with the second trompil.

6. The gray gate slide valve for a combustion furnace as set forth in claim 5, wherein: the first cover plate is covered with a second cover plate, the second cover plate is provided with a third opening, the size of the third opening tends to be consistent with that of the connecting block, and the connecting block penetrates through the second opening and the third opening from bottom to top to be connected with the driving part.

7. The gray gate slide valve for a combustion furnace as set forth in claim 1, wherein: the frame is provided with the proximity switch mount pad on one side of being close to driver part, and the proximity switch seat is the U style of calligraphy, and the proximity switch mount pad passes through bolt and frame connection, is provided with the slotted hole on the long limit of proximity switch mount pad U style of calligraphy, and proximity switch passes through the bolt fastening on the proximity switch mount pad.

8. The gray gate slide valve for a combustion furnace as set forth in claim 6, wherein: and a proximity switch induction block is arranged on the second cover plate.

9. The gray gate slide valve for a combustion furnace as set forth in claim 7, wherein: the round pin axle is provided with the recess, and the round pin axle is furnished with the clamp plate, and the clamp plate card is in selling epaxial recess, and the clamp plate is connected with the connecting block with holding bolt.

10. The gray gate slide valve for a combustion furnace as set forth in any one of claims 1 to 8, wherein: the frame upper surface is provided with the deashing mouth, and the deashing mouth is provided with the lid.