Sealing device for feeding channel of vertical lime furnace
By designing a vertical lime furnace feed channel sealing device, the combination of the flip valve housing, sealed embedding belt and cylinder counterweight blocks is used to solve the environmental pollution problem caused by the failure of the plug valve, and the effect of equipment maintenance without affecting production is achieved.
Patent Information
- Application Number
- CN202422200603.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The original plug-in valve designed in the feed channel of the vertical lime furnace frequently occurs, resulting in serious environmental pollution when the fan valve assumes the sealing function alone.
A vertical lime furnace feed channel sealing device is designed, using a combination of a flap valve housing, a sealing insert belt and a cylinder counterweight block, and sealing is achieved through the opening and closing of the flap to avoid damage to the sealing device.
It achieves the effect of not affecting production during equipment maintenance, avoiding damage to sealing devices, and reducing environmental pollution.
Smart Images
Figure CN223005329U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of dust treatment, in particular to a sealing device for the feeding channel of a vertical lime kiln. Background Art
[0002] The original design of the feeding channel of the vertical lime kiln is an upper flap valve and a lower sector valve. The two valves are alternately opened and closed under the control of the system PLC to cut off the direct connection between the inside of the furnace and the outside.
[0003] The flap valve is in a normally closed state and is opened in advance during material falling, and does not bear the gravity of the object. The sector valve is a load-bearing valve, bearing the gravity load of the material, and its sealing function is secondary. Later, due to frequent failures of the flap valve affecting production and other reasons, the flap valve was abandoned, which would cause the sector valve to solely bear the function of cutting off and sealing between the inside of the furnace and the outside. When the sector valve is opened, the material falling channels inside and outside the furnace are directly connected, and flue gas and dust gush out, causing serious environmental pollution. Summary of the Invention
[0004] In view of this, the purpose of the utility model is to provide a sealing device for the feeding channel of a vertical lime kiln to solve the problems raised in the above background art.
[0005] In order to achieve the above purpose, the following technical solutions are further adopted:
[0006] A sealing device for the feeding channel of a vertical lime kiln includes a flap valve housing. A feeding port is opened in the upper part of the flap valve housing. A U-shaped sealing buckle belt is fixedly installed around the feeding port. A rotating shaft is arranged beside the feeding port and rotates on the flap valve housing. A flap is fixedly installed on the rotating shaft, and a U-shaped sealing insertion belt is fixedly installed on the flap.
[0007] When the flap is buckled, the sealing insertion belt on the flap is buckled and inserted into the U-shaped sealing buckle belt at the bottom of the feeding port to form an embedded buckling structure.
[0008] As a further improvement of the utility model, one end of the rotating shaft is fixedly installed with a turntable. A steel wire rope is wound around the turntable. The midpoint of the steel wire rope is fixed at the top of the turntable. One end of the steel wire rope is connected to the telescopic end of the cylinder, and the other end is connected to a counterweight. The opening and closing of the flap are realized by driving the turntable to rotate through the up and down movement of the cylinder and the counterweight.
[0009] As a further improvement of the utility model, the outer wall of the cylinder slides through a sliding limiting groove, and a clamping plate is fixedly connected to the lower end of the cylinder. The clamping plate is arranged at the lower part of the sliding limiting groove.
[0010] As a further improvement of the utility model, an annular groove for embedding the steel wire rope is opened on the outer circumference of the turntable.
[0011] The beneficial effects of the utility model are:
[0012] The sealing embedded belt on the flap in the utility model plays a role of partition sealing and does not bear gravity load. When the interlock function of the device fails, the material gravity presses down the flap and rotates counterclockwise, the cylinder as a whole descends, the counterweight rises, the flap opens partially, the material falls, and the flap function still meets the use requirements, without delaying equipment maintenance and avoiding damage to the sealing device, thus delaying production requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The drawings forming a part of this application are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:
[0014] Figure 1 It is a schematic structural diagram of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine the embodiments to elaborate on the utility model in detail.
[0016] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0017] Please refer to Figure 1 , a vertical lime furnace feeding channel sealing device, including a flap valve housing 1, a feeding port 2 is opened at the upper part of the flap valve housing 1, a loop-shaped sealing fastening belt 21 is fixedly installed around the bottom of the feeding port 2, a rotating shaft 3 beside the feeding port 2 and rotating on the flap valve housing 1, a flap 4 is fixedly installed on the rotating shaft 3, and a loop-shaped sealing embedded belt 5 is fixedly installed on the flap 4; when the flap 4 is fastened, the sealing embedded belt 5 on the flap 4 is fastened and embedded in the loop-shaped sealing fastening belt 21 at the bottom of the feeding port 2 to form an embedded fastening structure.
[0018] One end of the rotating shaft 3 is fixedly installed with a turntable 6. A steel wire rope 7 is wound around the turntable 6. The midpoint of the steel wire rope 7 is fixed at the top of the turntable 6. One end of the steel wire rope 7 is connected to the telescopic end of the air cylinder 8, and the other end is connected to the counterweight 9. The up and down movement of the air cylinder 8 and the counterweight 9 drives the turntable 6 to rotate, thereby realizing the opening and closing of the flap 4. The outer wall of the air cylinder 8 is slidably inserted into the sliding limiting groove 10, and a clamping plate 11 is fixedly connected to the lower end of the air cylinder 8. The clamping plate 11 is arranged at the lower part of the sliding limiting groove 10, and the sliding limiting groove 10 is fixedly installed on the flap valve housing 1. An annular groove for embedding the steel wire rope 7 is formed on the outer circumference of the turntable 6.
[0019] When the flap 4 needs to be opened, the air cylinder 8 contracts. The clamping plate 11 at the bottom of the air cylinder 8 is stuck at the bottom of the sliding limiting groove 10, pulling the steel wire rope 7. The steel wire rope 7 pulls the turntable 6, and the turntable 6 rotates counterclockwise, and the flap 4 opens and becomes vertical. At the same time, the counterweight 9 rises. When the flap 4 needs to be closed, the telescopic end of the air cylinder 8 extends, cooperating with the counterweight 9 and the steel wire rope 7, driving the turntable 6 to rotate clockwise until the sealing insertion belt 5 is buckled with the material outlet 2. When the interlocking function of the device fails, the gravity of the material presses down the flap 4 to rotate counterclockwise, the air cylinder 8 descends, the counterweight rises, the flap 4 is partially opened, and the material falls, avoiding damage to the sealing device.
[0020] Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
Claims
1. A sealing device for a vertical lime furnace feed channel, comprising a flap valve housing, a feed opening is provided on the upper portion of the flap valve housing, and is characterized in that: A circular sealing buckle belt is fixedly installed around the discharge port, and a rotating shaft rotating on the flap valve housing is fixedly installed on the discharge port, and a flap is fixedly installed on the rotating shaft, and a mouth-shaped sealing embedded belt is fixedly installed on the flap; When the flap is buckled, the sealing embedded belt on the flap is buckled and embedded in the circular sealing buckling belt at the bottom of the feeding port to form an embedded buckling structure.
2. A sealing device for a vertical lime kiln feed channel according to claim 1, characterized in that: A turntable is fixedly installed at one end of the rotating shaft, and a steel wire rope is wound on the turntable. The midpoint of the steel wire rope is fixed on the top of the turntable. One end of the steel wire rope is connected to the telescopic end of the cylinder, and the other end is connected to the counterweight block. The up and down movement of the cylinder and the counterweight block drives the turntable to rotate, thereby realizing the opening and closing of the flap.
3. A sealing device for a vertical lime kiln feed channel according to claim 2, characterized in that: The outer wall of the cylinder is slidably arranged in the sliding limiting groove, and the lower end of the cylinder is fixedly connected with a clamping plate, which is arranged at the lower part of the sliding limiting groove.
4. A sealing device for a vertical lime kiln feed channel according to claim 2, characterized in that: An annular groove for embedding the steel wire rope is provided on the outer circumference of the turntable.