Waste gas combustion treatment device for flexible copper-clad plate production

Abstract

The utility model provides a waste gas combustion treatment device for flexible copper-clad plate production, which comprises a waste gas filtering system, the exhaust end of the waste gas filtering system is connected with a combustion chamber with a negative pressure combustion structure, a combustor is arranged on the combustion chamber, the gas inlet end of the combustor is connected with a natural gas inlet pipe, and the natural gas inlet pipe is connected with a gas outlet pipe. When the combustor is ignited, flames are sprayed into the combustion chamber, a gas guiding and air spraying system is arranged on the combustion chamber, and waste gas exhausted by the waste gas filtering system, fuel input by the natural gas inlet pipe and oxygen guided by the gas guiding and air spraying system are combusted in the combustion chamber. And the combustion chamber is also connected with a tail gas treatment system for purifying and dedusting combusted gas. The waste gas combustion treatment device for flexible copper-clad plate production is simple in structure, the problems that waste gas combustion energy consumption is large and waste gas combustion is incomplete are effectively solved, and the tail gas emission requirement in the copper-clad plate production process is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the waste gas treatment technical field in the manufacturing process of copper clad plate, specifically relates to a kind of waste gas combustion treatment device for flexible copper clad plate production. BACKGROUND

[0002] With the development of modern society, copper clad plate is widely used in aerospace equipment, navigation equipment, aircraft instruments, military guidance system and mobile phone, digital camera, digital video camera, car satellite direction positioning device, liquid crystal television, notebook computer and other electronic products.

[0003] Current copper clad plate, laminated board production mostly uses "wet production process", first resin is prepared into glue liquid with organic solvent, then glue is applied to substrate with coating machine, and is dried.In this production process, organic solvent volatilizes, and their mixture with air is called waste gas.If waste gas is discharged into atmosphere, it will pollute the environment, therefore, waste gas needs to be treated before being discharged.The existing waste gas combustion device can also burn and decompose waste gas, but there are problems of large energy consumption and incomplete waste gas combustion, which affect the treatment effect of waste gas. SUMMARY

[0004] The utility model aims at overcoming the insufficient of prior art, provide a kind of waste gas combustion treatment device for flexible copper clad plate production, and this kind of waste gas combustion treatment device for flexible copper clad plate production is simple structure, effectively improve the problem of large energy consumption and incomplete waste gas combustion of waste gas combustion, meet the emission requirement of tail gas in copper clad plate production process.

[0005] The utility model aims at overcoming the insufficient of prior art, provide a kind of waste gas combustion treatment device for flexible copper clad plate production, and this kind of waste gas combustion treatment device for flexible copper clad plate production is simple structure, effectively improve the problem of large energy consumption and incomplete waste gas combustion of waste gas combustion, meet the emission requirement of tail gas in copper clad plate production process.

[0006] A kind of waste gas combustion treatment device for flexible copper clad plate production, including waste gas filtration system, the exhaust end of the waste gas filtration system is connected with the combustion chamber with negative pressure combustion structure, a burner is equipped on the combustion chamber, the gas inlet end of the burner is connected with natural gas inlet pipe, the burner is ignited and is sprayed flame into the combustion chamber, air guide jet system is equipped on the combustion chamber, waste gas discharged by the waste gas filtration system and fuel input by natural gas inlet pipe and oxygen guided by air guide jet system are burned in the combustion chamber, the combustion chamber is also connected with tail gas treatment system for gas purification and dust removal after combustion.

[0007] As described above, the waste gas combustion treatment device for flexible copper clad plate production, the air guide jet system includes one end pipe orifice to extend into the combustion chamber oxygen supply pipe and the rotating nozzle connected with the oxygen supply pipe orifice.

[0008] The flexible copper-clad plate production waste gas combustion treatment device as claimed in the above, wherein the combustion chamber is provided with a plurality of annular pipes made of refractory material, the air guide and blowing system comprises the annular pipes and an oxygen supply pipe with one end of the pipe opening extending into the annular pipe, and a plurality of through holes are formed in the annular pipes.

[0009] The flexible copper-clad plate production waste gas combustion treatment device as claimed in the above, wherein the combustion chamber is composed of an outer wall and an inner wall, and the inner wall is a refractory material layer.

[0010] The flexible copper-clad plate production waste gas combustion treatment device as claimed in the above, wherein the bottom of the combustion chamber is provided with at least one preheating treatment zone, the exhaust end of the waste gas filtering system is connected with the preheating treatment zone in a pipeline connection mode, and the waste gas treated by the waste gas filtering system is preheated by the preheating treatment zone and then enters the combustion chamber.

[0011] The flexible copper-clad plate production waste gas combustion treatment device as claimed in the above, wherein the preheating treatment zone is provided with an aluminum nitride ceramic heater.

[0012] The flexible copper-clad plate production waste gas combustion treatment device as claimed in the above, wherein the negative pressure combustion structure is a negative pressure fan installed on the oxygen supply pipe and a pressure regulating device arranged on the combustion chamber and used for controlling the internal pressure of the combustion chamber.

[0013] The flexible copper-clad plate production waste gas combustion treatment device as claimed in the above, wherein the combustion chamber is connected with a temperature control system.

[0014] The flexible copper-clad plate production waste gas combustion treatment device as claimed in the above, wherein the bottom of the waste gas filtering system is provided with a waste gas input pipe, the top of the waste gas filtering system is provided with a lye spraying control device, the lye spraying control device is connected with a compressed air conveying pipe, and an adjusting valve for controlling the air spraying wind pressure in the waste gas filtering system is arranged between the compressed air conveying pipe and the lye spraying control device.

[0015] The flexible copper-clad plate production waste gas combustion treatment device as claimed in the above, wherein the burner is provided with a purple light scanner and an igniter.

[0016] Compared with the prior art, the flexible copper-clad plate production waste gas combustion treatment device has the following advantages:

[0017] 1. The flexible copper-clad plate production waste gas combustion treatment device has a simple structure, the heat generated by the combustion of the auxiliary fuel natural gas in the combustion chamber is used to increase the temperature of the combustible harmful gas to the reaction temperature, so that the oxidation decomposition is caused, the problems of large waste gas combustion energy consumption and incomplete waste gas combustion are effectively improved, and the tail gas emission requirement in the copper-clad plate production process is met.

[0018] 2.The utility model discloses a thermodynamic condition completely different from traditional combustion process, through preheating treatment area, the harmful gas of combustible is preheated, avoids the gas in combustion chamber unevenly heated, greatly improves the waste gas oxidation decomposition efficiency, and the burning loss is low, and the heating effect is good, and it is more environmental protection and energy saving.

[0019] 3.The utility model discloses a waste gas filtration system is connected on preheating treatment area, and waste gas filtration system is sent into the preheating treatment area in combustion chamber after the gas of purification is defoamed and preheats and carries out combustion oxidation decomposition, and it is more efficient and environmental protection, adopts the staged combustion technology, and the temperature is uniform, and the burning loss is low, and the heating effect is good, and it is more environmental protection and energy saving.

[0020] 4.The utility model discloses heating speed is fast, low-temperature heat exchange effect is remarkable, and heat efficiency is high, and the exhaust gas temperature is low, and the energy -saving effect is remarkable, and the fuel consumption is reduced room temperature gas emission.

[0021] 5.The utility model discloses a flame is not combusted in the burner, but gradually combusted in the combustion chamber with negative pressure structure, and there is no high-temperature front, and the combustion noise is low, the temperature in the combustion chamber is overall raised and uniformly distributed, the airflow speed is big, the combustion speed is fast, the flue gas stays in the combustion chamber for a long time, the organic oxidizing matter is completely decomposed, the environmental protection effect is more remarkable, and the production is safer. DRAWINGS

[0022] Figure 1 It is flexible copper-clad plate production waste gas combustion treatment device structure schematic view of the utility model embodiment 1;

[0023] Figure 2 It is flexible copper-clad plate production waste gas combustion treatment device structure schematic view of the utility model embodiment 2. SPECIFIC EMBODIMENT

[0024] The utility model will be further described in detail below in conjunction with the drawings of the specification and specific embodiment.

[0025] Embodiment 1

[0026] As Figure 1 Indicated, the utility model discloses a flexible copper-clad plate production waste gas combustion treatment device, including waste gas filtration system 1, the exhaust end of waste gas filtration system 1 is connected with the combustion chamber 2 with negative pressure combustion structure, is equipped with the burner 3 on the combustion chamber 2, the gas inlet end of burner 3 is connected with natural gas inlet pipe 31, and burner 3 sprays flame into the combustion chamber 2 when igniting, and the combustion chamber 2 is equipped with gas guide jet system 4, and the waste gas of waste gas filtration system 1 is combusted in the combustion chamber 2 with the fuel of natural gas inlet pipe 31 input and the oxygen of gas guide jet system 4 import, and the combustion chamber 2 is still connected with tail gas treatment system 5 for the gas purification and dust removal after combustion.

[0027] The waste gas combustion treatment device for flexible copper-clad plate production has obvious advantages in gas purification and decomposition of water-soluble or viscous substances and high molecular substances in organic waste gas.

[0028] The flame is not combusted in the burner 3, but is gradually combusted in the combustion chamber 2, and no high-temperature front surface is formed, so that the combustion noise is low; the gas jetting system 4 is arranged in the combustion chamber 2 with a negative pressure combustion structure, and oxygen wind is jetted from different angles, so that the combustion is not reversed and is more thorough.

[0029] The chimney 9 is connected to the tail gas treatment system 5, and the chimney 9 is provided with a sampling hole and a temperature measuring hole (not shown in the figure), and is fixed at the end of the exhaust for measuring whether the gas discharged into the atmosphere meets the standard.

[0030] As shown in Figure 1 The oxygen supply pipe 41 and the rotating nozzle 42 are made of refractory material, the rotating nozzle 42 sprays high-oxygen-content air into the combustion chamber, so that the combustion and decomposition of the waste gas are more sufficient, and the efficiency of waste gas combustion is improved.

[0031] In the utility model, the combustion chamber 2 is composed of an outer wall 21 and an inner wall 22, and the inner wall 22 is a refractory material layer.

[0032] The temperature of the combustion chamber 2 can reach 800-1000 DEG C, the gas flow speed is large, the combustion speed is fast, the flue gas stays in the combustion chamber for a long time, the organic oxidizing matter is completely decomposed, the environmental protection effect is more remarkable, and the production is safer.

[0033] As the optimization mode of the utility model, the bottom of the combustion chamber 2 is provided with at least one preheating treatment area 6, the exhaust end of the waste gas filtering system 1 is connected with the preheating treatment area 6 by pipeline, and the waste gas treated by the waste gas filtering system 1 is preheated by the preheating treatment area 6 and then enters the combustion chamber 2. The preheating treatment area 6 preheats the combustible harmful gas, avoids the incomplete decomposition of the gas due to uneven heating, and improves the waste gas oxidation decomposition efficiency.

[0034] Specifically, the preheating treatment area 6 is provided with an aluminum nitride ceramic heater 61.

[0035] The negative pressure combustion structure in the utility model embodiment is a negative pressure fan 45 mounted on the oxygen supply pipe 41 and a pressure regulating device 7 arranged on the combustion chamber 2 and used for controlling the pressure inside the combustion chamber 2. The negative pressure combustion structure can adjust the combustion chamber 2 to a negative pressure environment, and the negative pressure environment of the combustion chamber 2 makes the waste gas in the waste gas filtering system 1 more easily be sucked into the high-temperature combustion chamber 2 for combustion and decomposition.

[0036] The bottom of the waste gas filtering system 1 is provided with a waste gas input pipe 11, and the top is provided with a lye spraying control device 12. The lye spraying control device 12 is connected with a compressed air conveying pipe 13, and the compressed air conveying pipe 13 is provided with an adjusting valve 14 for controlling the air spraying pressure in the waste gas filtering system 1 between the lye spraying control device 12. Generally, the lye spraying control device 12 is also connected with a lye conveying pipe (not shown in the figure) for conveying the lye required for waste gas purification and absorption in the waste gas filtering system 1.

[0037] Specifically, the waste gas filtering system 1 of the embodiment generally sprays the lye through a special nozzle, and the spraying pressure and the oxygen amount are controlled by the pressure regulating valve 14. The waste gas enters from the bottom of the waste gas filtering system 1 through the waste gas input pipe 11, and is countercurrently contacted with the filler and the lye in the waste gas filtering system 1, effectively washing the residual gaseous pollutants, removing the purified gas, and then preheating in the preheating treatment area 6 and then entering the combustion chamber 2 for combustion and oxidation decomposition.

[0038] The burner 3 is provided with a purple light scanner 32 and an igniter 33.

[0039] The utility model discloses a combustion chamber 2 negative pressure is extracted to the high temperature combustion chamber 2 in waste gas, make it and oxygen combustion reaction. Its main operation process includes combustion air → natural gas delivery → natural gas ignition combustion → waste gas combustion → tail gas heat exchange cooling purification → waste gas emission etc. step. The starting process of burner 3 includes equipment running state confirmation → purging → ignition → temperature rise → operation etc. 5 steps. Among them, state confirmation includes power supply, natural gas, combustion air etc. part composition, confirms that natural gas pressure and compressed air pressure satisfy ignition requirement. Purging is the purging of combustion chamber 2, and the program forced purging process 4-6 min before ignition ensures that the combustible gas in the combustion chamber 2 is below the safety value. When purging, open the main fan (not shown in the figure) in the combustion chamber 2 to discharge the air in the combustion chamber 2, and at the same time, open the combustion air fan (not shown in the figure) to supplement fresh air into the hearth, and ignite the small fire: after purging, the natural gas pipeline electromagnetic valve opening action and the automatic igniter electric spark synchronous operation, the natural gas starts to burn under the joint action of combustion air and fire source electric spark, and a blue small group flame is generated. When the purple light scanner detects the blue small group flame, open the electromagnetic valve on the natural gas pipeline, automatically adjust the natural gas and combustion air mixture, and ignite into a red large group flame under the action of small fire. When the combustion chamber temperature rises to the set temperature 800 DEG C, and the aluminum nitride ceramic heater temperature reaches 600 DEG C, the coating machine opens the waste gas introduction to carry out oxidative decomposition combustion, so that it is completely thermal oxidation, and the waste gas lingers 1-2s and directly burns. Under the high temperature, the organic matter in the waste gas is fully oxidized and decomposed into carbon dioxide and water.

[0040] Example 2

[0041] The difference between example 1 and the present embodiment is that the combustion chamber 2 is provided with a plurality of annular pipes 43 made of refractory material, and the gas guide and air injection system 4 comprises the annular pipes 43 and an oxygen supply pipe 41 with one end of the pipe opening extending into the annular pipes 43; a plurality of through holes 431 are arranged on the annular pipes 43. The annular pipes 43 of the present embodiment are generally attached to the inner wall of the combustion chamber 2, and a plurality of through holes 431 are arranged on the annular pipes 43, so that the oxygen air injected by the gas guide and air injection system 4 is more evenly distributed in the combustion chamber 2, which makes the combustion of waste gas more uniform.

Claims

1. A waste gas combustion treatment device for the production of flexible copper clad laminates, characterized in that The invention comprises an exhaust gas filtration system (1), wherein the exhaust end of the exhaust gas filtration system (1) is connected to a combustion chamber (2) having a negative pressure combustion structure, a burner (3) is provided on the combustion chamber (2), the air inlet end of the burner (3) is connected to a natural gas inlet pipe (31), and when the burner (3) is ignited, a flame is ejected into the combustion chamber (2), and an air guide injection system (4) is provided on the combustion chamber (2). The exhaust gas discharged from the exhaust gas filtration system (1) and the fuel input from the natural gas inlet pipe (31) and the oxygen introduced from the air guide injection system (4) are burned in the combustion chamber (2), and the combustion chamber (2) is also connected to an exhaust gas treatment system (5) for purifying and removing dust from the gas after combustion.

2. The waste gas combustion treatment device for the production of flexible copper clad laminate according to claim 1 is characterized in that The air guide and air injection system (4) comprises an oxygen supply pipe (41) with one end extending into the combustion chamber (2) and a rotating nozzle (42) connected to the end of the oxygen supply pipe (41).

3. The waste gas combustion treatment device for the production of flexible copper clad laminate according to claim 1 is characterized in that A plurality of annular pipes (43) made of refractory material are provided in the combustion chamber (2); the air guide and air injection system (4) comprises an annular pipe (43) and an oxygen supply pipe (41) with one end extending into the annular pipe (43); and a plurality of through holes (431) are provided in the annular pipe (43).

4. The waste gas combustion treatment device for the production of flexible copper clad laminate according to claim 1 is characterized in that The combustion chamber (2) is composed of an outer wall (21) and an inner wall (22), and the inner wall (22) is a refractory material layer.

5. The waste gas combustion treatment device for the production of flexible copper clad laminate according to claim 1 is characterized in that At least one preheating treatment zone (6) is provided at the bottom of the combustion chamber (2); the exhaust end of the exhaust gas filtration system (1) is connected to a pipeline of the preheating treatment zone (6); the exhaust gas treated by the exhaust gas filtration system (1) is preheated in the preheating treatment zone (6) and then enters the combustion chamber (2).

6. The waste gas combustion treatment device for the production of flexible copper clad laminate according to claim 5, characterized in that An aluminum nitride ceramic heater (61) is provided in the preheating treatment zone (6).

7. The waste gas combustion treatment device for the production of flexible copper clad laminate according to claim 2 is characterized in that The negative pressure combustion structure comprises a negative pressure blower (45) installed on the oxygen supply pipe (41) and a pressure regulating device (7) provided on the combustion chamber (2) for controlling the internal pressure of the combustion chamber (2).

8. The waste gas combustion treatment device for the production of flexible copper clad laminate according to claim 1 is characterized in that The combustion chamber (2) is connected to a temperature control system (8).

9. The waste gas combustion treatment device for the production of flexible copper clad laminate according to claim 1, characterized in that The waste gas filtration system (1) is provided with a waste gas input pipe (11) at the bottom and a alkali solution spray control device (12) at the top. The alkali solution spray control device (12) is connected to a compressed air delivery pipe (13). A regulating valve (14) for controlling the air spraying pressure is provided between the compressed air delivery pipe (13) and the alkali solution spray control device (12).

10. The waste gas combustion treatment device for the production of flexible copper clad laminate according to claim 1, characterized in that The burner (3) is provided with a purple light scanner (32) and an igniter (33).

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