Silver-method formaldehyde and organic waste gas incineration and waste heat recovery process
By burning the formaldehyde exhaust gas and other organic exhaust gas generated during the production process of the formaldehyde production of silver method, and recycling heat through the waste heat recovery system, it solves the problem of organic waste gas treatment and realizes the effective reuse and production cost of resources.
Patent Information
- Application Number
- CN202411826446.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-01-21
AI Technical Summary
The formaldehyde waste gas and other organic waste gases generated during the silver formaldehyde production process are difficult to effectively deal with, and there are problems of environmental pollution and resource waste.
The direct combustion method is used to incinerate formaldehyde exhaust gas and other organic exhaust gas, and recycle heat through the waste heat recovery system to generate steam to form a silver formaldehyde incineration and residual heat recovery process. This process includes the No. 1 incineration furnace, No. 2 incinerator, reactor and residual heat recovery system. It uses formaldehyde tail gas as a fuel to incinerate various organic waste gas, and improve energy utilization efficiency through the residual heat recovery system.
The safety incineration of formaldehyde exhaust gas and other organic exhaust gas was realized, and the heat was recovered to generate steam, avoiding the purchase of additional fuel, reducing production costs, and making full use of the exhaust resources generated during the production process.
Smart Images
Figure CN119333836A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of environmental protection, and in particular to a silver-based formaldehyde and organic waste gas incineration and waste heat recovery process. Background Art
[0002] The formaldehyde production process is generally a silver-catalyzed oxidation method, which converts the raw gas of ternary gas (methanol, air, water vapor) into formaldehyde gas through a silver-catalyzed oxidation reaction under the condition of excess methanol at 600-680℃ under normal pressure. The formaldehyde gas is converted into a solution through cooling, condensation, and absorption processes using the property of formaldehyde being soluble in water, and the amount of water is controlled to obtain an industrial formaldehyde product containing a certain formaldehyde content. The formaldehyde product is collected through the aqueous solution, and the tail gas still contains a small amount of methanol, 19% hydrogen, and 78% nitrogen, which is flammable.
[0003] Formaldehyde has a wide range of uses. The related products involved in this process are glyoxal, urea-formaldehyde resin, and C5 products. These products will produce VOC gases during the production, storage, and transportation process, and have different characteristics. The waste gas in the production of glyoxal is corrosive to a certain extent; C5 waste gas is the gas released during the filling process of the C5 tank. N2 is used as the environmental protection gas during the filling process, so C5 waste gas is flammable and explosive; urea-formaldehyde resin waste gas and low-concentration waste gas from the workshop have a certain odor after passing through the scrubber, but it is non-flammable. Summary of the invention
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: The purpose of the present invention is to treat the waste gas generated by the production of silver-process formaldehyde and downstream products by a direct combustion method, and to recover heat to generate steam; a silver-process formaldehyde and organic waste gas incineration and waste heat recovery process, which includes a No. 1 incinerator, a No. 2 incinerator, an induced draft fan and a waste heat recovery system; the waste heat recovery system is arranged at the rear end of the No. 1 incinerator, and the induced draft fan is arranged at the rear end of the waste heat recovery system; Incinerator No. 1 uses formaldehyde tail gas as the main fuel, urea-formaldehyde resin waste gas and low-concentration waste gas from the workshop as part of the combustion-supporting air, and leads 80% of the glyoxal waste gas with a flow rate of 600Nm³ / h into Incinerator No. 1 for incineration for more than 3 seconds; The No. 2 incinerator uses formaldehyde tail gas as the pilot flame, and the C5 waste gas is pressurized by a Roots blower to burn in the second burner, while part of the glyoxal waste gas is burned at the same time; Preferably, the waste heat recovery system consists of a waste heat steam boiler, an economizer, a formaldehyde tail gas preheater and an air preheater. After the waste heat steam boiler, the economizer, the air preheater and the formaldehyde tail gas preheater absorb heat, the treated gas is discharged to the chimney through an induced draft fan.
[0005] Preferably, the entire process utilizes formaldehyde tail gas as fuel to incinerate organic waste gas without adding other fuels.
[0006] Preferably, the C5 waste gas is combusted by injecting it into the furnace after being pressurized because it is flammable and explosive, so as to prevent flameout and deflagration; Preferably, the aldehyde resin waste gas and low-concentration waste gas from the workshop are used as combustion-supporting air and need to be introduced to the burner 1 through a blower; Preferably, the glyoxal waste gas has a certain corrosiveness and is directly introduced into the high-temperature flue gas for incineration.
[0007] Preferably, the air preheater and formaldehyde tail gas preheater are used to absorb flue gas heat, increase the heat entering the furnace, increase the furnace temperature, and ensure the temperature requirements for direct combustion treatment of exhaust gas.
[0008] Preferably, the waste heat steam boiler, economizer, air preheater and formaldehyde tail gas preheater are connected by pipelines.
[0009] Preferably, flow meters are arranged on the input pipes of the formaldehyde tail gas entering the No. 1 incinerator and the No. 2 incinerator respectively, and a flow meter is arranged on the pipe leading to the second burner of the No. 2 incinerator after the C5 waste gas is pressurized by the Roots blower; flow meters are arranged on the pipes of the glyoxal waste gas entering the No. 1 incinerator and the No. 2 incinerator respectively; flow meters are arranged on the pipe of the urea-formaldehyde resin waste gas and the low-concentration waste gas from the workshop entering the No. 1 incinerator as combustion-supporting air; flow meters are arranged on the outlet pipes of the No. 1 incinerator and the No. 2 incinerator to monitor the flow of waste gas after incineration treatment.
[0010] Preferably, pressure sensors are arranged at the inlet and outlet of the Roots blower of the C5 waste gas to monitor the pressurization of the C5 waste gas and prevent safety accidents caused by abnormal pressure; pressure sensors are arranged on the input pipes of the formaldehyde tail gas entering the No. 1 incinerator and the No. 2 incinerator respectively to monitor the pressure, ensure that the flow rate and pressure of the formaldehyde tail gas entering the incinerator meet the process requirements, and ensure the stability of combustion; pressure sensors are arranged on the pipes of the glyoxal waste gas entering the No. 1 incinerator and the No. 2 incinerator respectively to monitor the pressure in the pipes, ensure that the glyoxal waste gas can enter the corresponding incinerator according to the specified flow rate and pressure conditions for effective incineration; pressure sensors are arranged on the pipes of the urea-formaldehyde resin waste gas and the low-concentration waste gas from the workshop entering the No. 1 incinerator as combustion-supporting air to monitor the pressure in the pipe, so as to reasonably control the supply of combustion-supporting air so that it cooperates with the main fuel to achieve a good combustion effect.
[0011] Preferably, a corrosion-resistant guide device is provided at the position where the glyoxal waste gas is introduced into the high-temperature flue gas, to ensure that the glyoxal waste gas can evenly enter the high-temperature flue gas for incineration.
[0012] Preferably, a water seal tank is provided on the pipe through which the formaldehyde enters the No. 1 incinerator, a water seal tank is also provided on the pipe through which the glyoxal waste gas enters the No. 2 incinerator, and a water seal tank is also provided on the exhaust pipe of the C5 waste gas.
[0013] Beneficial effects: Compared with the prior art, the present invention relates to the field of environmental protection technology, incinerates formaldehyde waste gas and other organic waste gas generated by the silver formaldehyde industry, and recycles the heat. The process consists of a waste gas incineration system and a waste heat recovery system. The waste gas incineration system realizes the safe combustion of waste gas, and the waste heat recovery system recovers heat to generate steam. The waste gas incineration system consists of a water seal tank, a burner, an incinerator and a gas pipeline. The water seal tank has the functions of anti-backfire and gas collection and distribution. According to the characteristics of the waste gas, it is divided into a formaldehyde tail gas water seal tank, a C5 waste gas water seal tank, and a glyoxal waste gas water seal tank. The No. 1 incinerator uses formaldehyde tail gas as fuel, and the low-concentration waste gas from the workshop is used as part of the combustion-supporting wind. It is fully burned in the incinerator, and the temperature can reach above 1000°C, staying for about 3S; the No. 2 incinerator uses formaldehyde tail gas as a long-lasting flame, and the C5 waste gas is introduced into the burner for combustion. The glyoxal waste gas has a low concentration and is corrosive to a certain extent. It is introduced into the incinerator through a pipeline for high-temperature incineration. The waste heat recovery system is composed of a waste heat steam boiler, an economizer, an exhaust gas preheater and an air preheater. The waste heat steam boiler recovers most of the heat to generate steam; the purpose of the exhaust gas preheater and the air preheater is to recover heat while increasing the heat in the incinerator to ensure the temperature requirements for waste gas incineration; the economizer is used to heat the boiler feed water. An induced draft fan is set at the tail of the waste heat recovery system to lead the flue gas to the chimney to ensure that the incinerator is in a slightly negative pressure state; in summary, the entire process of the present invention uses formaldehyde tail gas as fuel to incinerate organic waste gas, such as urea-formaldehyde resin waste gas, low-concentration workshop waste gas, glyoxal waste gas, C5 waste gas, etc., which fully utilizes the waste gas resources generated in the production process, avoids the cost of purchasing other fuels, realizes the effective reuse of resources, and reduces production costs. The waste heat recovery system is composed of a waste heat steam boiler, an economizer, a formaldehyde tail gas preheater and an air preheater. Waste heat steam boilers can recover most of the heat and generate steam, which can be further used in other industrial production links or heating purposes; economizers are used to heat boiler feed water, improving energy utilization efficiency; formaldehyde tail gas preheaters and air preheaters can not only recover heat, but also increase the heat in the incinerator to ensure the temperature requirements of waste gas incineration, forming a relatively complete waste heat recovery and utilization system, further saving energy. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a process flow chart of the present invention. DETAILED DESCRIPTION
[0015] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.
[0016] Example Please refer to the attached drawings of the specification. In the embodiment of the present invention, a silver-based formaldehyde and organic waste gas incineration and waste heat recovery process includes a No. 1 incinerator, a No. 2 incinerator, an induced draft fan and a waste heat recovery system; the waste heat recovery system is arranged at the rear end of the No. 1 incinerator, and the induced draft fan is arranged at the rear end of the waste heat recovery system; Incinerator No. 1 uses formaldehyde tail gas as the main fuel, urea-formaldehyde resin waste gas and low-concentration waste gas from the workshop as part of the combustion-supporting air, and leads 80% of the glyoxal waste gas with a flow rate of 600Nm³ / h into Incinerator No. 1 for incineration for more than 3 seconds; The No. 2 incinerator uses formaldehyde tail gas as the pilot flame, and the C5 waste gas is pressurized by a Roots blower to burn in the second burner, while part of the glyoxal waste gas is burned at the same time; The waste heat recovery system is composed of a waste heat steam boiler, an economizer, a formaldehyde tail gas preheater and an air preheater. After the waste heat steam boiler, economizer, air preheater and formaldehyde tail gas preheater absorb heat, the treated gas is led to the chimney for discharge through the induced draft fan. The waste heat steam boiler recovers most of the heat to generate steam; the purpose of the formaldehyde tail gas preheater and the air preheater is to recover heat while increasing the heat in the incinerator to ensure the temperature requirements for waste gas incineration; the economizer is used to heat the boiler feed water, and the induced draft fan arranged at the tail of the waste heat recovery system leads the flue gas to the chimney to ensure that the incinerator is in a slightly negative pressure state. The waste heat steam boiler is composed of a boiler body and an economizer condenser. The boiler body adopts a double-drum structure with a mature and stable structure, consisting of upper and lower drums, membrane walls and convection tube bundles; the economizer is composed of an inlet header, a serpentine fin tube heating surface, and an outlet header; Furthermore, the entire process utilizes formaldehyde tail gas as fuel to incinerate organic waste gas without adding other fuels.
[0017] Furthermore, since the C5 waste gas is flammable and explosive, it is compressed and injected into the furnace to prevent flameout and deflagration. Furthermore, the aldehyde resin waste gas and low-concentration waste gas from the workshop need to be introduced to the burner 1 through a blower as combustion-supporting air; Furthermore, the glyoxal waste gas is corrosive to a certain extent and is directly introduced into the high-temperature flue gas for incineration.
[0018] Furthermore, the air preheater and formaldehyde tail gas preheater are used to absorb flue gas heat, increase the heat entering the furnace, increase the furnace temperature, and ensure the temperature requirements for direct combustion treatment of exhaust gas.
[0019] Furthermore, the waste heat steam boiler, economizer, air preheater and formaldehyde tail gas preheater are connected by pipelines.
[0020] Furthermore, flow meters are arranged on the input pipes of the formaldehyde tail gas entering the No. 1 incinerator and the No. 2 incinerator respectively; a flow meter is arranged on the pipe leading to the second burner of the No. 2 incinerator after the C5 waste gas is pressurized by the Roots blower; flow meters are arranged on the pipes of the glyoxal waste gas entering the No. 1 incinerator and the No. 2 incinerator respectively; flow meters are arranged on the pipe of the urea-formaldehyde resin waste gas and the low-concentration waste gas from the workshop entering the No. 1 incinerator as combustion-supporting air; flow meters are arranged on the outlet pipes of the No. 1 incinerator and the No. 2 incinerator to monitor the flow of waste gas after incineration treatment.
[0021] Furthermore, pressure sensors are arranged at the inlet and outlet of the Roots blower of the C5 waste gas to monitor the pressurization of the C5 waste gas and prevent safety accidents caused by abnormal pressure; pressure sensors are arranged on the input pipes of the formaldehyde exhaust gas entering the No. 1 incinerator and the No. 2 incinerator respectively to monitor the pressure and ensure that the flow rate and pressure of the formaldehyde exhaust gas entering the incinerator meet the process requirements and ensure the stability of combustion; pressure sensors are arranged on the pipes of the glyoxal waste gas entering the No. 1 incinerator and the No. 2 incinerator respectively to monitor the pressure in the pipes and ensure that the glyoxal waste gas can enter the corresponding incinerator according to the specified flow rate and pressure conditions for effective incineration; pressure sensors are arranged on the pipes of the urea-formaldehyde resin waste gas and the low-concentration waste gas from the workshop entering the No. 1 incinerator as combustion-supporting air to monitor the pressure in the pipe so as to reasonably control the supply of combustion-supporting air so that it cooperates with the main fuel to achieve a good combustion effect.
[0022] Furthermore, a corrosion-resistant guide device is provided at the position where the glyoxal waste gas is introduced into the high-temperature flue gas, so as to ensure that the glyoxal waste gas can evenly enter the high-temperature flue gas for incineration.
[0023] Furthermore, a water seal tank is provided on the pipe through which the formaldehyde enters the No. 1 incinerator, a water seal tank is also provided on the pipe through which the glyoxal waste gas enters the No. 2 incinerator, and a water seal tank is also provided on the exhaust pipe of the C5 waste gas. The water seal tank plays a vital role in preventing backfire. When the flame enters the water seal tank through the waste gas outlet, since the inlet pipe is below the water surface, the water seal tank can prevent the spread of the flame, thereby protecting the pipelines and devices above; eliminating pressure fluctuations in the pipeline system; collecting droplets in the gas phase, the water seal tank can absorb the droplets, and a gas-liquid separator is provided at the outlet to prevent the droplets from entering subsequent equipment.
[0024] Working principle: Incinerator No. 1 uses formaldehyde tail gas as the main fuel, urea-formaldehyde rubber waste gas and low-concentration waste gas from the workshop as part of the combustion-supporting air, and leads 80% of the glyoxal waste gas to the negative pressure incinerator for incineration for more than 3S, with a temperature of more than 1000℃; Incinerator No. 2 uses formaldehyde tail gas as a long-lasting flame, and C5 waste gas is pressurized by a Roots blower to the burner for combustion, while burning part of the glyoxal waste gas; The water seal tank is set to prevent backfire caused by furnace explosion and ensure the safety of the front-end production process. The main purpose of the air preheater and formaldehyde tail gas preheater is to increase the temperature of formaldehyde tail gas and air, increase the heat entering the furnace, and stabilize combustion. The calorific value of formaldehyde tail gas is 540KJ / Nm3, and the combustion temperature is low. Increasing the temperature of formaldehyde tail gas and air can increase the temperature in the incinerator to more than 900℃, and high temperature can achieve harmless treatment of waste gas.
[0025] In summary, the present invention relates to the field of environmental protection technology. It incinerates formaldehyde waste gas and other organic waste gas generated by the silver formaldehyde industry, and recycles the heat. The process consists of a waste gas incineration system and a waste heat recovery system. The waste gas incineration system realizes the safe combustion of waste gas, and the waste heat recovery system recovers heat to generate steam. The waste gas incineration system consists of a water seal tank, a burner, an incinerator and a gas pipeline. The water seal tank has the functions of anti-backfire and gas collection and distribution. According to the characteristics of the waste gas, it is divided into a formaldehyde tail gas water seal tank, a C5 waste gas water seal tank, and a glyoxal waste gas water seal tank. Incinerator No. 1 uses formaldehyde tail gas as fuel, and the low-concentration waste gas from the workshop is used as part of the combustion-supporting wind. It is fully burned in the incinerator, and the temperature can reach above 1000°C, staying for about 3S; Incinerator No. 2 uses formaldehyde tail gas as a long-lasting flame, and C5 waste gas is introduced into the burner for combustion. The glyoxal waste gas has a low concentration and is corrosive to a certain extent. It is introduced into the incinerator through a pipeline for high-temperature incineration. The waste heat recovery system is composed of a waste heat steam boiler, an economizer, an exhaust gas preheater and an air preheater. The waste heat steam boiler recovers most of the heat to generate steam; the purpose of the exhaust gas preheater and the air preheater is to recover heat while increasing the heat in the incinerator to ensure the temperature requirements for waste gas incineration; the economizer is used to heat the boiler feed water. An induced draft fan is set at the tail of the waste heat recovery system to lead the flue gas to the chimney to ensure that the incinerator is in a slightly negative pressure state; in summary, the entire process of the present invention uses formaldehyde tail gas as fuel to incinerate organic waste gas, such as urea-formaldehyde resin waste gas, low-concentration workshop waste gas, glyoxal waste gas, C5 waste gas, etc., which fully utilizes the waste gas resources generated in the production process, avoids the cost of purchasing other fuels, realizes the effective reuse of resources, and reduces production costs. The waste heat recovery system is composed of a waste heat steam boiler, an economizer, a formaldehyde tail gas preheater and an air preheater. Waste heat steam boilers can recover most of the heat and generate steam, which can be further used in other industrial production links or heating purposes; economizers are used to heat boiler feed water, improving energy utilization efficiency; formaldehyde tail gas preheaters and air preheaters can not only recover heat, but also increase the heat in the incinerator to ensure the temperature requirements of waste gas incineration, forming a relatively complete waste heat recovery and utilization system, further saving energy.
[0026] The above are only preferred embodiments of the present invention. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the protection scope of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.
[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, the meaning of "multiple" is two or more.
[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
Claims
1. A silver-based formaldehyde and organic waste gas incineration and waste heat recovery process, characterized in that: It includes a No. 1 incinerator, a No. 2 incinerator, an induced draft fan and a waste heat recovery system; the waste heat recovery system is arranged at the rear end of the No. 1 incinerator, and the induced draft fan is arranged at the rear end of the waste heat recovery system; Incinerator No. 1 uses formaldehyde tail gas as the main fuel, urea-formaldehyde resin waste gas and low-concentration waste gas from the workshop as part of the combustion-supporting air, and leads 80% of the glyoxal waste gas with a flow rate of 600Nm³ / h into Incinerator No. 1 for incineration for more than 3 seconds; The No. 2 incinerator uses formaldehyde tail gas as the pilot flame, and the C5 waste gas is pressurized by a Roots blower to burn in the second burner, while part of the glyoxal waste gas is burned at the same time; The waste heat recovery system consists of a waste heat steam boiler, an economizer, a formaldehyde tail gas preheater and an air preheater. After the waste heat steam boiler, the economizer, the air preheater and the formaldehyde tail gas preheater absorb heat, the treated gas is discharged to the chimney through an induced draft fan.
2. The silver-based formaldehyde and organic waste gas incineration and waste heat recovery process according to claim 1, characterized in that: The entire process utilizes formaldehyde tail gas as fuel to incinerate organic waste gas without adding other fuels.
3. The silver-based formaldehyde and organic waste gas incineration and waste heat recovery process according to claim 1, characterized in that: Since the C5 waste gas is flammable and explosive, it is injected into the furnace after being pressurized to prevent flameout and deflagration; The aldehyde resin waste gas and low-concentration waste gas from the workshop need to be introduced to the burner 1 through a blower as combustion-supporting air; The glyoxal waste gas is corrosive to a certain extent and is directly introduced into the high-temperature flue gas for incineration.
4. The silver-based formaldehyde and organic waste gas incineration and waste heat recovery process according to claim 1, characterized in that: The air preheater and formaldehyde tail gas preheater are used to absorb the heat of the flue gas, increase the heat entering the furnace, increase the furnace temperature, and ensure the temperature requirements for direct combustion treatment of the exhaust gas.
5. The silver-based formaldehyde and organic waste gas incineration and waste heat recovery process according to claim 1, characterized in that: The waste heat steam boiler, the economizer, the air preheater and the formaldehyde tail gas preheater are connected by pipelines.
6. The silver-based formaldehyde and organic waste gas incineration and waste heat recovery process according to claim 1, characterized in that: Flow meters are set on the input pipes of the formaldehyde tail gas entering the No. 1 incinerator and the No. 2 incinerator respectively, and a flow meter is set on the pipe leading to the second burner of the No. 2 incinerator after the C5 waste gas is pressurized by the Roots blower; flow meters are set on the pipes of the glyoxal waste gas entering the No. 1 incinerator and the No. 2 incinerator respectively; flow meters are set on the pipe of the urea-formaldehyde resin waste gas and the low-concentration waste gas from the workshop entering the No. 1 incinerator as combustion-supporting air; flow meters are set on the outlet pipes of the No. 1 incinerator and the No. 2 incinerator to monitor the flow of waste gas after incineration treatment.
7. The silver-based formaldehyde and organic waste gas incineration and waste heat recovery process according to claim 1, characterized in that: Pressure sensors are arranged at the inlet and outlet of the Roots blower of the C5 waste gas to monitor the pressurization of the C5 waste gas and prevent safety accidents caused by abnormal pressure; pressure sensors are arranged on the input pipes of the formaldehyde tail gas entering the No. 1 incinerator and the No. 2 incinerator respectively to monitor the pressure and ensure that the flow rate and pressure of the formaldehyde tail gas entering the incinerator meet the process requirements and ensure the stability of combustion; pressure sensors are arranged on the pipes of the glyoxal waste gas entering the No. 1 incinerator and the No. 2 incinerator respectively to monitor the pressure in the pipes and ensure that the glyoxal waste gas can enter the corresponding incinerator according to the specified flow rate and pressure conditions for effective incineration; pressure sensors are arranged on the pipes of the urea-formaldehyde resin waste gas and the low-concentration waste gas from the workshop entering the No. 1 incinerator as combustion-supporting air to monitor the pressure in the pipe so as to reasonably control the supply of combustion-supporting air so that it cooperates with the main fuel to achieve a good combustion effect.
8. The silver-based formaldehyde and organic waste gas incineration and waste heat recovery process according to claim 1, characterized in that: A corrosion-resistant guide device is provided at the position where the glyoxal waste gas is introduced into the high-temperature flue gas, so as to ensure that the glyoxal waste gas can evenly enter the high-temperature flue gas for incineration.
9. The silver-based formaldehyde and organic waste gas incineration and waste heat recovery process according to claim 1, characterized in that: A water seal tank is provided on the pipe through which the formaldehyde enters the No. 1 incinerator, a water seal tank is also provided on the pipe through which the glyoxal waste gas enters the No. 2 incinerator, and a water seal tank is also provided on the exhaust pipe of the C5 waste gas.