High-sulfur coke oven tail gas treatment system
The high sulfur content exhaust gas treatment system addresses fouling and clogging issues in existing systems by using offset blades and a water channel to collect moisture, ensuring efficient and clean operation.
Patent Information
- Application Number
- CN202422368526.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing coke oven exhaust content is high, and the mist droplets are prone to carry smoke and dust to adhere in the baffle plate during the desulfurization process, resulting in scaling and blocking.
Removable upper defogging blades and lower defogging blades are used. The top surface of the blade is equipped with dislocated air holes, combined with arcuate surfaces and flow tank design, and the droplets are collected by gravity and discharged through the water outlet holes to avoid dust adhesion and blockage.
Effectively collect moisture in the flue gas, prevent dust from adhering to the pores, avoid blockage, ensure long-term use of the equipment and easy to clean.
Smart Images
Figure CN223096507U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of tail gas treatment, and specifically relates to a high-sulfur coke oven tail gas treatment system. Background Technique
[0002] A coke oven, also called a coking oven, is a furnace usually made of refractory bricks and refractory blocks, used to carbonize coal to produce coke. It is a kiln for refining coke with coal and is the main thermal equipment for coking. A modern coke oven refers to a horizontal chamber coke oven mainly used for producing metallurgical coke and capable of recovering coking chemical products, which consists of a furnace body and auxiliary equipment. The furnace body of the coke oven includes a furnace top, a combustion chamber, a carbonization chamber, a diagonal passage area, a regenerator, etc., and is connected through a flue and a chimney.
[0003] When the existing coke oven is working, the sulfur content in the tail gas is high, and fog droplets are easily carried by the flue gas during desulfurization. Among them, the existing demisting method is to use a baffle plate. When the baffle plate is used, due to its bent structure, when the fog droplets carry dust and move in the baffle plate, adhesion is likely to occur. Over time, fouling and blockage are likely to occur. Content of the Utility Model
[0004] The utility model provides a high-sulfur coke oven tail gas treatment system to solve the defects in the prior art.
[0005] The utility model is realized through the following technical solutions:
[0006] A high-sulfur coke oven tail gas treatment system includes upper demisting blades and lower demisting blades that are detachably and fixedly arranged in parallel in the flue. Upper air holes and lower air holes are respectively arranged on the top surfaces of the upper demisting blades and the lower demisting blades along a rectangular array. The upper air holes and the lower air holes are arranged in a horizontal offset manner. Four adjacent upper air holes located at the four corners of the rectangle form a cell. The bottom surface of the cell is a downwardly convex arc surface, and the convex point of the arc surface is located at the center of the cell. A water flow groove is horizontally arranged on the top surface of the lower demisting blade directly below the convex point, and a water outlet hole communicating with the water flow groove is downwardly arranged on one side of the top surface of the lower demisting blade.
[0007] When this application is in use, the flue gas enters through the lower air holes and hits the top surface of the upper demisting blade. Among them, due to the offset arrangement of the upper air holes and the lower air holes, the flue gas is discharged through the upper air holes. The moisture in the flue gas forms droplets that adhere to the demisting blades and slide along the arc surface under the action of gravity and converge at the convex point. As the attached droplets gradually increase and become larger, the droplets will fall under the action of gravity and land on the water flow groove and flow out through the water outlet hole. Thus, not only the collection of moisture in the flue gas is realized, but also compared with the baffle plate, the water flow wrapped with dust does not pass through the flue gas channel and will not adhere to the upper air holes or the lower air holes, and thus will not cause blockage, ensuring the long-term use of the equipment.
[0008] Preferably, the inner bottom wall of the water outlet tank is an inclined surface and slopes downward toward the water outlet hole. This enables the liquid droplets to flow quickly to the water outlet hole under the action of gravity, thus preventing the liquid droplets from flowing too slowly and scaling in the water flow tank.
[0009] Preferably, a vertical water outlet pipe is connected to the inside of the water outlet hole. The lower end of the water outlet pipe is closed and water outlet side holes are provided on the side. The lower end of the water outlet pipe is closed and water outlet side holes are provided, which can prevent gas from entering the water outlet pipe and affecting the water outlet of the water outlet hole.
[0010] Preferably, a notch is provided in the upper part of the water flow tank, and the width of the notch decreases from top to bottom in the front-back direction. The notch can effectively ensure that the water flow tank can better catch the liquid droplets.
[0011] Preferably, the upper demisting blade is fixedly connected to one side of a connecting plate. The other side of the connecting plate is vertically bent upward and is attached to the inner wall of the flue and is detachably fixedly connected to the inner wall of the flue by bolts. The upper demisting blade and the lower demisting blade are fixedly connected by a connecting rod.
[0012] The beneficial effects of the present utility model are as follows: By using this application, on the premise of meeting the water collection requirement, compared with the baffle plate, the water flow wrapped with dust does not pass through the flue gas channel and will not adhere to the upper air hole or the lower air hole, thus preventing blockage and ensuring the long-term use of the equipment. At the same time, the equipment is detachable for easy cleaning. Description of the Drawings
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0014] Figure 1 is the structural schematic diagram of the present utility model;
[0015] Figure 2 is Figure 1 the schematic view in the direction A of
[0016] Figure 3 is Figure 1 the partial enlarged view I of
[0017] As shown in the figure:
[0018] 1. Upper demisting blade, 2. Lower demisting blade, 3. Upper air hole, 4. Lower air hole, 5. Cell, 6. Water flow tank, 7. Water outlet pipe, 8. Notch, 9. Connecting plate, 10. Connecting rod, 11. Flue. Detailed Embodiments
[0019] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0020] A high-sulfur coke oven tail gas treatment system, as Figures 1 - 3 shown. It includes upper demisting vanes 1 and lower demisting vanes 2 that are detachably and fixedly arranged in the flue 11 and are parallel. Upper air holes 3 and lower air holes 4 are respectively arranged along a rectangular array on the top surfaces of the upper demisting vanes 1 and the lower demisting vanes 2. The upper air holes 3 and the lower air holes 4 are arranged in a transverse dislocation. Four adjacent upper air holes 3 located at the four corners of the rectangle form a cell 5. The bottom surface of the cell 5 is a downwardly convex arc surface, and the convex point of the arc surface is located at the center of the cell 5. A water flow groove 6 is transversely arranged on the top surface of the lower demisting vane 2 directly below the convex point. An outlet hole communicating with the water flow groove 6 is downwardly arranged on one side of the top surface of the lower demisting vane 2.
[0021] When in use in this application, the flue gas enters through the lower air holes 4 and hits the top surface of the upper demisting vane 1. Among them, due to the dislocation arrangement of the upper air holes 3 and the lower air holes 4, the flue gas is discharged through the upper air holes 3. The moisture in the flue gas forms droplets that adhere to the demisting vanes and slide along the arc surface under the action of gravity and converge at the convex point. As the adhered droplets gradually increase and become larger, the droplets will fall under the action of gravity and land on the water flow groove 6 and flow out through the outlet hole. Thus, not only the collection of the moisture in the flue gas is realized, but also compared with the baffle plate, the water flow wrapped with dust does not pass through the flue gas channel and will not adhere to the upper air holes 3 or the lower air holes 4, and thus will not cause blockage, ensuring the long-term use of the equipment.
[0022] The inner wall of the bottom surface of the water outlet groove is an inclined surface and slopes downward in the direction of the outlet hole. A vertical water outlet pipe 7 is communicated in the outlet hole. The lower end of the water outlet pipe 7 is closed and a water outlet side hole is arranged on the side surface. The inner wall of the bottom surface of the water outlet groove being an inclined surface can enable the droplets to quickly flow to the outlet hole under the action of gravity, thereby preventing the droplets from flowing too slowly and scaling in the water flow groove 6. And the lower end of the water outlet pipe 7 is closed and the water outlet side hole is arranged to prevent gas from entering the water outlet pipe 7 and affecting the water outlet of the outlet hole.
[0023] A notch 8 is arranged in the upper part of the water flow groove 6, and the width of the notch 8 decreases from top to bottom in the front-rear direction. The notch 8 can effectively ensure that the water flow groove 6 better catches the droplets.
[0024] The upper demisting blade 1 is fixedly connected to one side of a connecting plate 9. The other side of the connecting plate 9 bends vertically upward, abuts against the inner wall of the flue 11, and is detachably and fixedly connected to the inner wall of the flue 11 by bolts. The upper demisting blade 1 and the lower demisting blade 2 are fixedly connected by a connecting rod 10.
[0025] During the use of this application, on the premise of meeting the water collection, compared with the baffle plate, the water flow wrapped with dust does not pass through the flue gas channel and will not adhere to the upper air hole 3 or the lower air hole 4, thereby not causing blockage, ensuring the long-term use of the equipment. At the same time, the equipment is detachable and convenient to clean.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A high-sulfur coke oven tail gas treatment system, characterized in that: It includes upper demisting vanes and lower demisting vanes which are detachably and fixedly arranged in the flue and are parallel. Upper air holes and lower air holes are respectively formed in the top surfaces of the upper demisting vanes and the lower demisting vanes along a rectangular array. The upper air holes and the lower air holes are arranged in a staggered manner in the horizontal direction. Four adjacent upper air holes located at the four corners of the rectangle form a cell. The bottom surface of the cell is an arc-shaped surface that protrudes downward, and the protruding point of the arc-shaped surface is located at the center of the cell. A water flow groove is transversely formed in the top surface of the lower demisting vane directly below the protruding point, and a water outlet hole communicating with the water flow groove is formed downward on one side of the top surface of the lower demisting vane.
2. The high-sulfur coke oven tail gas treatment system according to claim 1, characterized in that: The inner wall of the bottom surface of the water flow groove is an inclined surface and slopes downward in the direction of the water outlet hole.
3. The high-sulfur coke oven tail gas treatment system according to claim 2, wherein: A vertical water outlet pipe is communicated inside the water outlet hole. The lower end of the water outlet pipe is closed and a water outlet side hole is formed in the side surface.
4. The high-sulfur coke oven tail gas treatment system according to claim 1, wherein: A notch is formed in the upper part of the water flow groove, and the width of the notch decreases from top to bottom in the front-back direction.
5. The high-sulfur coke oven tail gas treatment system according to claim 1, wherein: The upper demisting vane is fixedly connected to one side of a connecting plate. The other side of the connecting plate is vertically bent upward and is attached to the inner wall of the flue and is detachably and fixedly connected to the inner wall of the flue by bolts. The upper demisting vane and the lower demisting vane are fixedly connected by a connecting rod.