A flue gas treatment device for a glass melting furnace

Abstract

The utility model relates to a kind of flue gas treatment devices for glass melting furnace, including machine body, SCR reactor, including filter assembly, including filter plate, mounting, collection, filter plate is set in machine body inside, mounting is set in filter plate outside, collection is set in filter plate bottom end, filter plate is used to filter out solid impurities in flue gas, heat extension component, including heating element, evaporator, pipeline, heating element is set in machine body inside, evaporator is set in heating element rear end, pipeline is fixedly set between heating element and evaporator, the device can handle the impurity particles in flue gas in advance, and collect together processing, while extend the time of flue gas into superheater to evaporator, so that the heating evaporation effect of flue gas is evenly good, give full play to the effect of superheater and evaporator.

Description

Technical Field

[0001] This utility model belongs to the field of flue gas treatment technology, specifically a flue gas treatment device for glass melting furnaces. Background Technology

[0002] The flue gas produced by glass melting furnaces contains a large amount of nitrogen oxides, which usually need to be treated by SCR denitrification process before they can be discharged.

[0003] The SCR (Sequencing Control of Noise) process for flue gas denitrification should maintain the flue gas temperature entering the denitrification reactor between 320℃ and 380℃. Temperatures below this range will reduce denitrification efficiency and increase the probability of SO2 converting to SO3. The reaction of ammonia with SO3 in the flue gas will form ammonium bisulfate, which will clog the catalyst and adhere to boiler pipes and flue, causing corrosion. Temperatures above this range will affect catalyst activity; the rate at which NH3 is oxidized to NO by O2 increases with temperature, similarly reducing denitrification efficiency. The reason for the flue gas temperature entering the denitrification reactor is that during the start-up of the waste heat boiler, the flue gas passes through the high and low temperature superheaters and the first and second stage evaporators of the waste heat boiler before reaching the SCR reactor. After passing through the superheaters and evaporators, the flue gas temperature may be higher or lower than normal.

[0004] The patent design with application number CN202221567350.2 sets the non-heat exchange zone inside the flue, replacing the existing technology that requires a separate compensation flue. This can significantly reduce the complexity of flue setup, lower construction costs, and solve the problem that the flue gas temperature may be too high or too low after passing through high and low temperature superheaters and primary and secondary evaporators. However, this method means that the treatment device does not filter out impurities in the flue gas in advance, which can easily cause impurities to adhere to the superheaters and evaporators, thus affecting their performance. In addition, the short time that the flue gas spends in the superheaters and evaporators may result in uneven heating or poor heating effect. Setting up multiple superheaters can easily lead to cost burden and waste.

[0005] Therefore, a flue gas treatment device for glass melting furnaces is proposed. Utility Model Content

[0006] Given the following technical problems in the existing technology: the existing roller spacing fine adjustment mechanism uses a drive motor to drive the lead screw to rotate, which in turn drives the steel roller connected to the lead screw to move for adjustment. This adjustment method results in a large distance for roller spacing adjustment, which does not conform to the concept of fine adjustment. At the same time, it is impossible to observe the distance dimension of the spacing adjustment, which has limitations.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A flue gas treatment device for a glass melting furnace includes a body, an SCR reactor, a filter assembly, a filter plate, an installation component, and a collection component. The filter plate is disposed inside the body, the installation component is disposed outside the filter plate, and the collection component is disposed at the bottom of the filter plate. The filter plate is used to filter out solid impurities in the flue gas. The heating assembly includes a heating element, an evaporator, and a pipe. The heating element is disposed inside the body, the evaporator is disposed at the rear end of the heating element, and the pipe is fixedly disposed between the heating element and the evaporator.

[0008] As a preferred technical solution for a flue gas treatment device for a glass melting furnace, the filter plate includes a shell, fixed strips, movable strips, a handle, a connecting block, and a rotating column. The shell is fixedly installed inside the machine body, the fixed strips are fixedly installed inside the shell, the movable strips are movably installed at the front end of the fixed strips, the handle is installed at the front end of the movable strips, the connecting block connects multiple movable strips, and the rotating column is installed between the movable strips and the fixed strips.

[0009] As a preferred technical solution for a flue gas treatment device for a glass melting furnace, the mounting components include buckles, spring clips, slots, and kneading blocks. The buckles are fixedly mounted on the housing, the spring clips are fixedly mounted between two buckles, the slots are formed on the machine body, and the kneading blocks are fixedly mounted on the side of the buckles.

[0010] As a preferred technical solution for a flue gas treatment device for a glass melting furnace, the collecting component includes a collecting bucket and a fixing seat. The fixing seat is fixedly installed at the bottom of the machine body, and the collecting bucket is placed inside the fixing seat.

[0011] As a preferred technical solution for a flue gas treatment device for a glass melting furnace, the heating element includes a superheater, a temperature sensor, a baffle plate, and a motor. The temperature sensor is fixedly installed inside the machine body, the superheater is fixedly installed above the temperature sensor, the baffle plate is rotatably installed at the bottom of the superheater, and the motor is fixedly installed at the side of the baffle plate.

[0012] As a preferred technical solution for a flue gas treatment device for a glass melting furnace, the pipeline adopts a three-section bend channel design, and a baffle is fixedly installed inside the pipeline to slow down the flow speed of the flue gas.

[0013] The beneficial effects of the flue gas treatment device for glass melting furnace of this utility model are as follows: the device can remove impurity particles in the flue gas in advance and collect them together for treatment. At the same time, it extends the time from the flue gas entering the superheater to the evaporator, so that the heating and evaporation effect of the flue gas is uniform and good, and the effect of the superheater and evaporator is fully utilized. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the main structure of a flue gas treatment device for a glass melting furnace.

[0015] Figure 2 This is a left sectional view of a flue gas treatment device for a glass melting furnace.

[0016] Figure 3 for Figure 2 A magnified view of part A.

[0017] Figure 4 This is another left-side sectional view of a flue gas treatment device for a glass melting furnace.

[0018] Figure 5 This is a front sectional view of a flue gas treatment device for a glass melting furnace.

[0019] Reference numerals: 1. Body; 2. Filter assembly; 21. Filter plate; 211. Shell; 212. Fixed slat; 213. Moving slat; 214. Handle; 215. Connecting block; 216. Rotating column; 22. Mounting component; 221. Buckle; 222. Snap ring; 223. Slot; 224. Kneading block; 23. Collecting component; 231. Collecting bucket; 232. Fixing base; 3. Heating assembly; 31. Heating component; 311. Superheater; 312. Temperature sensor; 313. Baffle; 314. Motor; 32. Evaporator; 33. Pipeline; 331. Baffle; 4. SCR reactor. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example

[0021] Reference Figures 1 to 5This is the first embodiment of the present invention, which provides a flue gas treatment device for a glass melting furnace. Specifically, it includes a body 1, an SCR reactor 4, and a filter assembly 2, including a filter plate 21, a mounting component 22, and a collection component 23. The filter plate 21 is disposed inside the body 1, the mounting component 22 is disposed outside the filter plate 21, and the collection component 23 is disposed at the bottom end of the filter plate 21. The filter plate 21 is used to filter out solid impurities in the flue gas. The heating assembly 3 includes a heating element 31, an evaporator 32, and a pipe 33. The heating element 31 is disposed inside the body 1, the evaporator 32 is disposed at the rear end of the heating element 31, and the pipe 33 is fixedly disposed between the heating element 31 and the evaporator 32. When the flue gas enters the body 1, it first passes through the filter. Plate 21 filters out most of the solid particles in the flue gas. The user can adjust the filter plate 21 according to the size of the solid particles in the flue gas. The user can also clean the flue gas particles and dust on the filter plate 21 through the mounting part 22 and pour the particles and dust into the collection part 23 (the collection part 23 is used to collect the solid particles that are intercepted and fall off when the flue gas passes through). Then the flue gas reaches the inside of the machine body 1, passes through the heating element 31, and when the sensor determines that the temperature of the flue gas is appropriate, it passes through the heating element 31 and reaches the pipe 33. The pipe 33 is winding and tortuous to prolong the time that the flue gas passes through the heating element 31. Then it reaches the evaporator 32. After passing through the evaporator 32, the flue gas enters the SCR reactor 4 for treatment and is then discharged.

[0022] Furthermore, the filter plate 21 includes a housing 211, a fixed strip 212, a movable strip 213, a handle 214, a connecting block 215, and a rotating column 216. The housing 211 is fixedly installed inside the body 1, the fixed strip 212 is fixedly installed inside the housing 211, the movable strip 213 is movably installed at the front end of the fixed strip 212, the handle 214 is installed at the front end of the movable strip 213, the connecting block 215 connects multiple movable strips 213, and the rotating column 216 is installed between the movable strip 213 and the fixed strip 212. The mounting component 22 includes a buckle 221, a snap ring 222, a slot 223, and a pinching block 224. The buckle 221 is fixedly installed on the housing 211, the snap ring 222 is fixedly installed between two buckles 221, the slot 223 is opened on the body 1, and the pinching block 224 is fixedly installed on the side of the buckle 221. The collecting component 23 includes... The collection bin 231 and the fixing base 232 are fixedly installed at the bottom of the machine body 1. The collection bin 231 is placed inside the fixing base 232. Before the flue gas enters the machine body 1, it first enters the filter plate 21 to filter out most of the flue gas particles. The flue gas particles that are blocked fall into the collection bin 231 below. The movable strips 213 of the filter plate 21 can be rotated around the rotating column 216 by the handle 214 to adjust the gap between them to deal with flue gas particles of different sizes. When the user wants to clean the fixing strips 212 and the movable strips 213, the user can remove the buckle 221 from the slot 223 by squeezing the inward pinching block 224, and then remove the filter plate 21. The user then cleans the dust particles and pours them into the collection bin 231. When there is too much dust in the collection bin 231, the collection bin 231 can be removed from the fixing base 232 for disposal. Example

[0023] Reference Figures 1-5 As shown, this is the second embodiment of the present invention. This embodiment differs from the previous one in that the heating element 31 includes a superheater 311, a temperature sensor 312, a partition 313, and a motor 314. The temperature sensor 312 is fixedly installed inside the body 1, the superheater 311 is fixedly installed above the temperature sensor 312, the partition 313 is rotatably installed at the bottom of the superheater 311, and the motor 314 is fixedly installed on the side of the partition 313. When flue gas passes through the superheater 311, the temperature sensor 312 detects whether the temperature is suitable and directly enters the S... When the SCR reactor 4 is in good condition, the motor 314 drives the baffle 313 to block the bottom of the superheater 311, and the flue gas directly enters the SCR reactor through the open channel. When the temperature sensor 312 detects that the flue gas temperature is not high enough and needs to pass through the superheater 311, the motor 314 drives the baffle 313 to block the channel that directly enters the SCR reactor 4 (opening the bottom of the superheater 311), so that the flue gas passes through the superheater 311, then through the pipe 33 and the evaporator 32, thereby reaching the required temperature, and then enters the SCR reactor for flue gas treatment.

[0024] Furthermore, the pipe 33 adopts a three-section bend channel design, and a baffle 331 is fixedly installed inside the pipe 33 to slow down the flow speed of the flue gas. In order to ensure that the flue gas is sufficient and fully heated when passing through the superheater 311, the pipe between the superheater 311 and the evaporator 32 adopts a three-section bend channel design and is equipped with a baffle 331 to slow down the flow speed of the flue gas as much as possible.

[0025] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A flue gas treatment device for a glass melting furnace, comprising a body (1) and an SCR reactor (4), characterized in that: Also includes The filter assembly (2) includes a filter plate (21), a mounting component (22), and a collection component (23). The filter plate (21) is located inside the body (1), the mounting component (22) is located outside the filter plate (21), and the collection component (23) is located at the bottom of the filter plate (21). The filter plate (21) is used to filter out solid impurities in the flue gas. The heat extension component (3) includes a heating element (31), an evaporator (32), and a pipe (33). The heating element (31) is located inside the body (1), the evaporator (32) is located at the rear end of the heating element (31), and the pipe (33) is fixedly located between the heating element (31) and the evaporator (32).

2. The flue gas treatment device for glass melting furnaces according to claim 1, characterized in that: The filter plate (21) includes a housing (211), a fixed strip (212), a movable strip (213), a handle (214), a connecting block (215), and a rotating column (216). The housing (211) is fixedly installed inside the body (1). The fixed strip (212) is fixedly installed inside the housing (211). The movable strip (213) is movably installed at the front end of the fixed strip (212). The handle (214) is installed at the front end of the movable strip (213). The connecting block (215) connects multiple movable strips (213). The rotating column (216) is installed between the movable strip (213) and the fixed strip (212).

3. The flue gas treatment device for glass melting furnaces according to claim 2, characterized in that: The mounting component (22) includes a buckle (221), a retaining spring (222), a retaining groove (223), and a pinching block (224). The buckle (221) is fixedly mounted on the housing (211), the retaining spring (222) is fixedly mounted between the two buckles (221), the retaining groove (223) is opened on the body (1), and the pinching block (224) is fixedly mounted on the side of the buckle (221).

4. The flue gas treatment device for glass melting furnaces according to claim 3, characterized in that: The collection component (23) includes a collection bucket (231) and a fixing seat (232). The fixing seat (232) is fixedly installed at the bottom of the body (1), and the collection bucket (231) is placed inside the fixing seat (232).

5. The flue gas treatment device for glass melting furnaces according to claim 4, characterized in that: The heating element (31) includes a superheater (311), a temperature sensor (312), a partition (313), and a motor (314). The temperature sensor (312) is fixedly installed inside the body (1). The superheater (311) is fixedly installed on the upper end of the temperature sensor (312). The partition (313) is rotatably installed on the bottom end of the superheater (311). The motor (314) is fixedly installed on the side end of the partition (313).

6. The flue gas treatment device for glass melting furnaces according to claim 5, characterized in that: The pipe (33) adopts a three-section bend channel design, and a baffle (331) is fixedly installed inside the pipe (33) to slow down the flow speed of the flue gas.

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