A multi-waste gas treatment device with carbon capture function

Abstract

The present invention relates to the technical field of waste gas treatment, and discloses a variety of waste gas treatment devices with carbon capture function, including a waste gas treatment mechanism, the waste gas treatment mechanism includes a liquid storage tank, a treatment box is installed on the top of the liquid storage tank, a gas collecting box is installed on the top of the treatment box, the waste gas treatment mechanism performs waste gas reaction through the treatment box, and adsorbs the overflow gas through the gas collecting box; a waste liquid treatment mechanism, the waste liquid treatment mechanism includes an evaporator, a smoke exhaust pipe is installed inside the evaporator, and the waste gas treatment mechanism evaporates the waste liquid through the high temperature generated by the smoke exhaust pipe. The present invention can use the flue gas temperature to evaporate the treated waste liquid containing carbonate, nitrate, and sulfate, reduce the water concentration of the waste liquid, increase the salt content, facilitate solid extraction, and improve the waste heat utilization rate. The evaporated water enters the liquid storage tank and is recycled, realizing the recycling of heat and water in the treated liquid.

Description

Technical Field

[0001] The present invention belongs to the technical field of waste gas treatment, and in particular, relates to a multiple waste gas treatment device with a carbon capture function. Background Art

[0002] In the field of waste gas treatment, simple waste gas treatment technologies have been very mature, such as dry and wet desulfurization. Desulfurization can be achieved using lime liquid, but the lime method produces solid waste, which is difficult to treat, and the dry method is not thorough.

[0003] The SCR method of denitrification produces catalyst solid waste and requires an exhaust gas temperature of 200-300 degrees Celsius. Lower temperatures require heating. It is difficult to achieve denitrification when the exhaust gas temperature is only a few dozen degrees Celsius. Increasing the temperature will significantly increase costs, which is difficult for companies to afford. The SNCR method sprays polymers, urea liquid and other reducing agents in a high-temperature furnace above 1000 degrees Celsius, and uses high temperature to produce pyrolytic ammonia to achieve denitrification. However, the higher temperature requires a higher operating level of the boiler, and there is a common problem of blockage and corrosion of the flue, which requires frequent shutdowns for cleaning, causing inconvenience in use.

[0004] In the field of dust removal, multi-tube dust collectors, cyclone dust collectors, and bag dust collectors are currently widely used. Multi-tube and cyclone dust collectors are difficult to meet the current national ultra-clean emission standards. Bag dust collectors can achieve ultra-clean emission requirements, but they are afraid of high temperatures. Sparks in boiler exhaust gas generated under certain working conditions will burn the bags, and the bags need to be replaced regularly, causing a burden on the company. In addition, solid waste will be generated. On the one hand, exhaust gas is treated, and on the other hand, bag solid waste is generated, so the gain does not outweigh the loss.

[0005] In terms of waste heat utilization, economizers are currently commonly used to recover waste heat, which can recover boiler exhaust gas from 200-300 degrees Celsius to about 120-150 degrees Celsius for discharge. However, the temperature drop leads to an uncomfortable denitrification temperature, and the temperature needs to be increased, which increases the denitrification cost. Failure to recover waste heat will lead to the burning of bag filters, and waste gas treatment is in a contradiction.

[0006] In waste gas treatment, SO2, NO x The treatment generally produces solid waste and cannot convert waste gas into beneficial substances.

[0007] In waste gas treatment, especially in the process of waste incineration, high-temperature combustion, secondary combustion or the combination of biomass fuel and natural gas fuel are used. In particular, the secondary combustion temperature increase requires additional fuel to ensure that the flue gas temperature is above one thousand degrees Celsius to reduce the generation of dioxins. After that, the use of activated carbon should be increased at the end to further reduce and absorb dioxins. Finally, bag filters are used to filter and further ensure that dioxins meet emission standards. However, in this process, the cost of secondary combustion will significantly increase the cost of waste incineration, making it difficult to break through the miniaturization of waste incineration technology.

[0008] The current waste gas treatment, whether it is desulfurization or denitrification, requires a higher flue gas temperature and spraying, otherwise the emission requirements cannot be met. A higher flue gas temperature means the emission of heat energy. Sprayed agents such as urea solution, ammonia water, sodium hypochlorite, etc., under the action of high temperature, generate white flue gas containing aerosols, which is not only harmful to the atmosphere, but also wastes a huge amount of heat energy, directly causing ineffective energy emissions.

[0009] In the field of carbon capture, in order to capture CO2, various chemical agents need to be used for acid-base reaction for absorption. Ammonia water is generally used for reaction, but the use of ammonia water causes ammonia to escape and generate harmful waste gas. At the same time, during this reaction, if the reaction temperature exceeds about 37 degrees Celsius, CO2 will be precipitated, which is not conducive to CO2 capture. Only by repeatedly working with multiple groups of devices can the temperature be lowered and ammonia escape and CO2 precipitation be reduced. The waste gas temperature in this process is wasted and not effectively utilized. This virtually reduces the recovery efficiency of CO2, increases costs, and cannot be effectively applied on a large scale, making it difficult to popularize.

[0010] The Chinese patent with the authorization announcement number CN212283529U discloses a processor that automatically adjusts the pollutant emission value, which solves the drawbacks and problems in the traditional exhaust gas processor. However, during the use of this technology, the gas separation plate will gradually wear out the orifice plate due to the long-term high-speed passage of dust, enlarging the gas separation hole. The gradual expansion of the separation hole reduces the wind pressure, which will affect the stability of the liquid layer in the processor, and then affect the stable operation of the equipment, and in severe cases, burn the motor. Only by replacing the main equipment of the gas treatment section can the stable operation of the device be guaranteed.

[0011] At the same time, the automatic dosing system in this patent will send a command to the dosing machine to add drugs after detecting that the flue gas exceeds the standard. Since there will be a reaction time after the agent is added, the gas concentration will not drop immediately. The dosing machine will continue to add drugs, resulting in excessive addition of agents, causing the liquid layer to rise, the fan load to increase, the air intake to reduce, the insufficient flue gas intake to affect the operation of the exhaust gas source.

[0012] Since flue gas treatment is carried out all day or all year round in many working conditions, in the treatment conditions with extremely high smoke particle content, the particulate matter will continue to increase and the viscosity will increase while the reagent concentration is effective, seriously affecting the operating conditions of the equipment. The equipment fan may even exceed the viscosity of the liquid, generating load, causing the equipment to stop running and affecting work.

[0013] In the process of waste gas treatment, especially the denitrification of waste gas from boilers, kilns and incinerators, the nitric oxide in nitrogen oxides is difficult to react with the reducing agent, and needs to be combined with an oxidant to react with it to oxidize the nitric oxide into nitrogen dioxide. Ozone is usually used, and the oxidant oxidizes the nitric oxide into nitrogen dioxide. The nitrogen dioxide reacts with the reducing agent and is reduced to nitrogen gas and discharged. However, the price of oxidants is generally very high, resulting in high denitrification costs and huge usage costs. The use of ozone generators causes another kind of air pollution, which is not worth the cost.

[0014] During the carbon capture work, the series working mode adopted can achieve the capture of carbon dioxide. However, after the carbon dioxide absorption concentration reaches saturation, the first-stage absorption reactor can no longer continue to absorb. The carbon dioxide escapes to the next-stage exhaust gas treatment device, which will continue to increase the concentration and cause the system to fail to work. Summary of the invention

[0015] In order to solve the above technical problems, the present invention provides a variety of waste gas treatment devices with carbon capture function. In the process of carbon capture, other waste gases are synchronously desulfurized, denitrated at low temperature, adsorbed particulate matter for dust removal, waste heat utilization, waste gas fertilizer, odor removal, and the temperature is instantly extremely cold to reduce the generation of dioxins, reduce the de-whitening of aerosols, and adsorb organic waste gas. The waste gas treatment device can monitor the liquid temperature of the liquid storage tank and the gas collection tank in real time during the carbon capture process. When the temperature of the agent exceeds a certain level, the heat exchange mechanism begins to cool down, reducing the temperature of the liquid storage tank and the gas collection tank, reducing the evaporation of the liquid, reducing the precipitation of carbon dioxide from the solution, reducing the generation of white smoke in traditional waste gas treatment, and achieving the de-whitening effect; and significantly improve the carbon dioxide capture rate, realize all-round waste gas treatment, and a set of devices meet all requirements in the field of waste gas treatment. Users can increase the concentration of waste gas treatment agents and adjust the liquid level height and increase the gas-liquid contact time according to their needs without changing the structure and volume of the equipment, and the treatment rate of various waste gases can reach 95-100%.

[0016] In addition, the present invention can also solve the problem of the escape of residual gases such as ammonia and other reagents generated during the treatment of waste gas with high-concentration reagents and carbon capture. After the high-concentration waste gas is treated, the high-concentration ammonia in the reagent that escapes is captured and utilized by clean water. When the clean water reaches a saturated state, high-concentration ammonia water is formed and enters the ammonia escape treatment box. The ammonia water is used to add medicine to the treatment box, which neither causes waste of ammonia water nor reduces the pollution of ammonia to the atmosphere.

[0017] At the same time, the present invention also utilizes the waste heat of flue gas sources such as boilers to absorb SO2, CO2, NO x The salts produced in the process of exhaust gas are concentrated, the water content is reduced, and a high-salt solution is generated, which is helpful for extracting fertilizers. The exhaust gas is utilized, the wastewater is recycled and evaporated without being discharged, and secondary pollution is reduced.

[0018] The invention is applicable to waste gas treatment fields such as various boilers, kilns, metal smelting, petrochemical industry, coal coking, welding fume, confined space, garbage incineration, agricultural waste gas, clean heating from renewable resources, and biogas purification.

[0019] The technical solution adopted by the present invention to solve the technical problem is:

[0020] A multiple exhaust gas treatment device with carbon capture function, comprising:

[0021] An exhaust gas treatment mechanism, the exhaust gas treatment mechanism comprising a liquid storage tank, a treatment box is installed on the top of the liquid storage tank, and a gas collecting box is installed on the top of the treatment box. The exhaust gas treatment mechanism performs exhaust gas reaction through the treatment box and absorbs the overflowed harmful gas through the gas collecting box;

[0022] The waste liquid treatment mechanism comprises an evaporator, a smoke exhaust pipe is installed inside the evaporator, and the waste gas treatment mechanism evaporates the waste liquid through the high temperature generated by the smoke exhaust pipe.

[0023] As a preferred embodiment of the present invention, a dividing mechanism is provided inside the processing box and the gas collecting box, and the dividing mechanism includes a level adjustment pile, on which a plurality of layers of bubble dividing plates are installed and plugged according to process requirements, and the bubble dividing plates are provided with bubble dividing holes, and the dividing mechanism divides the bubbles through the bubble dividing holes, and a demister is also installed at the upper end of the processing box and the gas collecting box.

[0024] As a preferred embodiment of the present invention, a heat exchange mechanism is provided in both the processing box and the gas collecting box, and the heat exchange mechanism includes a heat exchanger. The heat exchangers located between the processing box and the gas collecting box are connected in series with each other, a circulation pipe is installed at one end of the heat exchanger, a cooling water tank is installed on the circulation pipe, and a radiator and a first driving device are installed on the circulation pipe.

[0025] As a preferred embodiment of the present invention, an ammonia fugitive treatment box is installed on one side of the liquid storage tank, a vertical pipe is installed on the top of the ammonia fugitive treatment box, an upper branch pipe and a lower branch pipe are installed on the vertical pipe, the upper branch pipe is connected to the bottom of the air collecting box, the lower branch pipe is connected to the top of the treatment box, the lower branch pipe is located at the top of the demister inside the treatment box, and a second driving device is installed on the vertical pipe.

[0026] As a preferred embodiment of the present invention, a connecting pipe is installed on one side of the evaporator, one end of the connecting pipe is connected to the liquid storage tank, an air oxidation regulating valve is installed on the connecting pipe, a cleaning port is installed on one side of the evaporator, a smoke inlet is installed at the bottom of the cleaning port of the evaporator, the smoke inlet is connected to the smoke exhaust pipe, the top of the smoke exhaust pipe is connected to the inside of the evaporator, a discharge port is installed on one side of the evaporator, a valve is installed at the discharge port, and a concentration detector is also installed on one side of the evaporator.

[0027] As a preferred embodiment of the present invention, a liquid level electronic control device is installed on one side of the liquid storage tank and the treatment tank, and an upper reflux probe, an upper liquid replenishment probe, a lower reflux probe and a lower liquid replenishment probe are installed on the liquid level electronic control device. A liquid replenishment pipe is installed on one side of the liquid storage tank and the treatment tank, and one end of the liquid replenishment pipe is connected to a water pump. A first conduit is installed between the liquid storage tank and the ammonia escape treatment tank, and a third drive device is installed on the first conduit. A second conduit is installed between the liquid storage tank and the treatment tank, and a fourth drive device is installed on the second conduit. A third conduit is installed between the evaporator and the liquid storage tank, and a fifth drive device is installed on the third conduit.

[0028] As a preferred embodiment of the present invention, a conical cover is installed on the top of the air collecting box, a suction pipe is installed on the top of the conical cover, a high-pressure suction fan is installed at one end of the suction pipe, an ammonia detector is installed at the outlet end of the high-pressure suction fan, a first temperature sensor is installed on one side of the air collecting box, a second temperature sensor is installed on one side of the processing box, and a pH detector is installed in the liquid storage tank.

[0029] As a preferred embodiment of the present invention, it also includes a processor, on which is configured a control system for controlling the operation of the multifunctional exhaust gas treatment device with a carbon capture function, the control system including a detection unit and an execution unit:

[0030] The detection unit is used to detect various values ​​in the waste gas treatment mechanism and the waste liquid treatment mechanism, and generate instructions or signals based on the detection results;

[0031] The execution unit is used to execute the liquid level adjustment program based on the liquid level electronic control device to control the liquid level to maintain the height.

[0032] As a preferred embodiment of the present invention, the detection unit includes a temperature identification strategy, which includes configuring a start identification threshold in the second temperature sensor, and the start identification threshold characterizes the temperature corresponding to the high-temperature exhaust gas entering the processing box. The temperature identification strategy also includes obtaining the real-time temperature value a of the second temperature sensor. When the real-time temperature value a is greater than the start identification threshold, a power-on signal is generated, and the entire device is powered on based on the power-on signal to indicate that the entire device has started to run. When the real-time temperature value a is less than or equal to the start identification threshold, a power-off signal is generated, and the entire device is powered off based on the power-off signal to indicate that the entire device has stopped running.

[0033] As a preferred embodiment of the present invention, the detection unit further includes a temperature detection strategy, the temperature detection strategy includes configuring a cooling operation threshold in the first temperature sensor and the second temperature sensor, the cooling operation threshold represents the temperature required for the operation of the heat exchange mechanism, configuring a cooling stop threshold in the first temperature sensor and the second temperature sensor, the cooling stop threshold represents the temperature required for the heat exchange mechanism to stop operating, the temperature detection strategy further includes obtaining a real-time temperature value b of the first temperature sensor, and controlling the operation of the heat exchange mechanism based on a comparison of the real-time temperature value a and the real-time temperature value b with the cooling operation threshold and the cooling stop threshold;

[0034] When the real-time temperature value a and the real-time temperature value b satisfy that any value is greater than the cooling operation threshold, a working signal is generated, and the heat exchange mechanism is controlled to operate based on the working signal to indicate that the device starts to cool down. Otherwise, an empty signal is generated, and the heat exchange mechanism is maintained in the current state based on the empty signal. When the real-time temperature value a and the real-time temperature value b satisfy that both are less than the cooling stop threshold at the same time, a shutdown signal is generated, and the heat exchange mechanism is controlled to shut down based on the shutdown signal to indicate that the device has finished cooling down. Otherwise, an empty signal is generated, and the heat exchange mechanism is maintained in the current state based on the empty signal.

[0035] As a preferred embodiment of the present invention, the detection unit also includes an ammonia detection strategy, which includes configuring an ammonia concentration threshold in the ammonia detector, and also includes obtaining a real-time ammonia concentration value of the ammonia detector, and generating corresponding instructions based on the comparison between the real-time ammonia concentration value and the ammonia concentration threshold. When the real-time ammonia concentration value is greater than the ammonia concentration threshold, ammonia escapes, indicating that the liquid absorbing ammonia in the gas collecting box has reached a saturated state, and an extraction instruction is generated. Based on the extraction instruction, the second drive device is controlled to operate to indicate that the ammonia water in the gas collecting box is absorbed into the ammonia escape treatment box. When the real-time ammonia concentration value is less than or equal to the ammonia concentration threshold, ammonia does not escape, indicating that the liquid absorbing ammonia in the gas collecting box has not reached a saturated state, and a standby instruction is generated, and the second drive device is controlled to be in a standby state based on the standby instruction.

[0036] As a preferred embodiment of the present invention, the detection unit also includes a concentration detection strategy, which includes configuring a concentration detection threshold in the concentration detector, and also includes obtaining a real-time liquid concentration value of the concentration detector, and generating a corresponding instruction based on a comparison between the real-time liquid concentration value and the concentration detection threshold. When the real-time liquid concentration value is greater than the concentration detection threshold, it indicates that the waste liquid needs to be discharged, and a valve opening instruction is generated. Based on the valve opening instruction, the valve is controlled to open to discharge the liquid. When the real-time liquid concentration value is less than or equal to the concentration detection threshold, it indicates that the waste liquid does not need to be discharged, and a valve closing instruction is generated. Based on the valve closing instruction, the valve is controlled to close to prevent liquid discharge.

[0037] As a preferred embodiment of the present invention, the detection unit further includes a liquid level control strategy, and the liquid level control strategy includes a liquid replenishment control program and a reflux control program;

[0038] The liquid replenishment control program includes generating instructions based on the liquid level detected by the upper liquid replenishment probe and the lower liquid replenishment probe. When the liquid level reaches the lower liquid replenishment probe, it indicates that the liquid needs to be replenished, and a liquid replenishment start instruction and a liquid replenishment signal are generated. When the liquid level reaches the upper liquid replenishment probe, it indicates that the liquid replenishment is completed, and a liquid replenishment stop instruction is generated.

[0039] The reflux control program includes generating instructions for the liquid level based on the detection of the upper reflux probe and the lower reflux probe. When the liquid level reaches the upper reflux probe, it indicates that the liquid needs to be reduced, and a reflux start instruction and a reflux signal are generated. When the liquid level reaches the lower reflux probe, it indicates that the liquid reflux is completed, and a reflux stop instruction is generated.

[0040] As a preferred embodiment of the present invention, the execution unit includes executing a corresponding program according to the acquired signal for obtaining fluid infusion or reflux;

[0041] When a fluid replenishment signal is obtained, the execution unit executes a fluid replenishment control program;

[0042] When the backflow signal is acquired, the execution unit executes the backflow control program.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] The air oxidation regulating valve provided at the liquid storage tank of the present invention can adjust the air intake, so that the oxygen in the air participates in the oxidation of nitric oxide to nitrogen dioxide, which facilitates the rapid reaction of nitrogen dioxide with the treatment agent and is reduced to nitrogen, thereby reducing the amount of oxidizing agent and ozone in the agent and reducing the operating cost. Using the cheapest oxygen in the air in nature to oxidize nitric oxide solves the problem of the difficulty in oxidizing nitric oxide, and solves the high cost of drug oxidation and the harm of ozone to the environment;

[0045] The present invention can utilize the flue gas temperature to evaporate the treated waste liquid containing carbonate, nitrate and sulfate, reduce the water concentration of the waste liquid, increase the salt content, facilitate solid extraction, and improve the waste heat utilization rate. The evaporated water enters the liquid storage tank for recycling, thereby realizing the recycling of heat and water in the treated liquid.

[0046] The present invention can monitor the reagent temperature of the processing box and the gas collecting box in real time during the carbon capture process. When the reagent temperature exceeds a certain level, the heat exchange mechanism starts to cool down, thereby reducing the temperature of the processing box and the gas collecting box and reducing the evaporation of the reagent liquid, thereby eliminating the generation of white smoke in traditional waste gas treatment and achieving a whitening effect.

[0047] The present invention can solve the problem of ammonia escape generated during the process of treating waste gas with high-concentration chemicals and capturing carbon. After the high-concentration waste gas is treated, high-concentration ammonia is generated, which is captured and utilized by clean water. When the clean water reaches a saturated state, high-concentration ammonia water is formed and enters the ammonia escape treatment box. The ammonia water is used as a liquid storage tank for adding medicine, which neither causes waste of ammonia water nor reduces the pollution of ammonia to the atmosphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 This is a schematic diagram of the overall structure of a multiple exhaust gas treatment device with carbon capture function according to the present invention;

[0049] Figure 2 This is a schematic diagram of the structure of the cooling water tank of the present invention;

[0050] Figure 3 It is a schematic diagram of the internal structure of the liquid storage tank and the processing tank of the present invention;

[0051] Figure 4 It is a schematic diagram of the structure of the liquid level electronic control device of the present invention;

[0052] Figure 5 This is a schematic diagram of the structure of the vacuole partition plate of the present invention;

[0053] Figure 6 It is a schematic diagram of the internal structure of the evaporator of the present invention;

[0054] Figure 7 It is a schematic diagram of the detection unit process of the present invention;

[0055] Figure 8 It is a schematic diagram of the temperature identification strategy flow of the present invention;

[0056] Fig. 9 It is a schematic diagram of the temperature detection strategy flow of the present invention;

[0057] Fig.10 This is a schematic diagram of the ammonia detection strategy flow of the present invention;

[0058] Fig.11It is a schematic diagram of the concentration detection strategy flow of the present invention;

[0059] Fig.12 It is a schematic diagram of the flow of the liquid level control strategy of the present invention;

[0060] Fig.13 It is a schematic diagram of the execution unit flow of the present invention.

[0061] Reference numerals:

[0062] 100, liquid storage tank; 101, treatment tank; 102, gas collecting tank; 103, cone cover; 104, air suction pipe; 105, high-pressure suction fan; 106, ammonia detector; 107, first temperature sensor; 108, pH detector; 109, second temperature sensor;

[0063] 200, evaporator; 201, connecting pipe; 202, air oxidation regulating valve; 203, smoke exhaust pipe; 204, smoke inlet; 205, cleaning port; 206, discharge port; 207, concentration detector;

[0064] 300, demister; 301, level adjustment pile; 302, vacuole partition plate; 303, vacuole partition hole;

[0065] 400, cooling water tank; 401, circulation pipe; 402, first driving device; 403, radiator; 404, heat exchanger;

[0066] 500, upper branch pipe; 501, lower branch pipe; 502, vertical pipe; 503, second driving device; 504, ammonia escape treatment box;

[0067] 600, first conduit; 601, third driving device; 602, second conduit; 603, fourth driving device; 604, third conduit; 605, fifth driving device;

[0068] 700, liquid level electronic control device; 701, upper reflux probe; 702, upper liquid replenishment probe; 703, lower reflux probe; 704, lower liquid replenishment probe; 705, liquid replenishment tube. DETAILED DESCRIPTION

[0069] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0070] Example 1

[0071] like Figures 1 to 6 As shown, a multiple exhaust gas treatment device with carbon capture function, comprising:

[0072] The waste gas treatment mechanism includes a liquid storage tank 100, a treatment box 101 is installed on the top of the liquid storage tank 100, and a gas collecting box 102 is installed on the top of the treatment box 101. The waste gas treatment mechanism performs waste gas reaction through the treatment box 101 and adsorbs the overflow gas through the gas collecting box 102;

[0073] The waste liquid treatment mechanism comprises an evaporator 200 , a smoke exhaust pipe 203 is installed inside the evaporator 200 , and the waste gas treatment mechanism evaporates the waste liquid through the high temperature generated by the smoke exhaust pipe 203 .

[0074] like Figure 3 , Figure 5 As shown, in a specific embodiment, a segmentation mechanism is provided inside the processing box 101 and the gas collecting box 102, and the segmentation mechanism includes a level adjustment pile 301, a bubble segmentation plate 302 is installed on the level adjustment pile 301, and a bubble segmentation hole 303 is opened on the bubble segmentation plate 302. The segmentation mechanism segments the bubbles through the bubble segmentation hole 303, and a demister 300 is also installed inside the processing box 101 and the gas collecting box 102. In this setting, the waste gas is divided into small bubbles by the multi-layer bubble segmentation plate 302, so that the waste gas and the reaction agent can fully react, and the waste gas generates ammonia after the reaction. When passing through the demister 300, the droplets attached to the ammonia are removed under the action of the demister 300, and the height position of the bubble segmentation plate 302 can be adjusted by the level adjustment pile 301.

[0075] like Figure 1-Figure 3 As shown, further, a heat exchange mechanism is provided in both the processing box 101 and the gas collecting box 102, and the heat exchange mechanism includes a heat exchanger 404. The heat exchangers 404 located between the processing box 101 and the gas collecting box 102 are connected in series with each other. A circulation pipe 401 is installed at one end of the heat exchanger 404, a cooling water tank 400 is installed on the circulation pipe 401, and a radiator 403 and a first driving device 402 are installed on the circulation pipe 401. In this setting, when the reaction is carried out, it is necessary to prevent the precipitation of carbon dioxide, so it is necessary to control the temperature of the reaction. By setting the heat exchanger 404, the processing box 101 and the gas collecting box 102 are cooled down. When the reaction temperature is high, the first driving device 402 drives the circulating water in the cooling water tank 400 to circulate in the heat exchanger 404, and dissipates heat through the radiator 403, thereby reducing the temperature.

[0076] like Figure 1 , Figure 3As shown, further, an ammonia escape treatment box 504 is installed on one side of the liquid storage tank 100, a vertical pipe 502 is installed on the top of the ammonia escape treatment box 504, an upper branch pipe 500 and a lower branch pipe 501 are installed on the vertical pipe 502, the upper branch pipe 500 is connected to the bottom of the gas collecting box 102, the lower branch pipe 501 is connected to the top of the treatment box 101, the lower branch pipe 501 is located on the top of the demister 300 inside the treatment box 101, and a second driving device 503 is installed on the vertical pipe 502. In this setting, the second driving device 503 allows ammonia water to enter the ammonia escape treatment box 504 through the upper branch pipe 500 and the vertical pipe 502, and the ammonia water stored in the ammonia escape treatment box 504 can be used as a liquid medicine to enter the liquid storage tank 100 through the third driving device 601 to react with the waste liquid to achieve the purpose of recycling.

[0077] Example 2

[0078] like Figure 3 , Figure 6 As shown, in a specific embodiment, a connecting pipe 201 is installed on one side of the evaporator 200, one end of the connecting pipe 201 is connected to the liquid storage tank 100, an air oxidation regulating valve 202 is installed on the connecting pipe 201, a cleaning port 205 is installed on one side of the evaporator 200, a smoke inlet 204 is installed at the bottom of the cleaning port 205 of the evaporator 200, the smoke inlet 204 is connected to the exhaust pipe 203, the top of the exhaust pipe 203 is connected to the inside of the evaporator 200, a discharge port 206 is installed on one side of the evaporator 200, a valve is installed at the discharge port 206, and a concentration detector 207 is also installed on one side of the evaporator 200. In this setting, the air oxidation regulating valve 202 is used to mix air into the exhaust gas, and the oxygen in the air is used to oxidize the nitrogen monoxide in the exhaust gas into nitrogen dioxide, saving the use of oxidants and reducing costs. The cleaning port 205 is used to clean the crystals precipitated on the exhaust pipe 203.

[0079] like Figure 1 , Figure 4As shown, further, a liquid level electronic control device 700 is installed on one side of the liquid storage tank 100 and the treatment tank 101, and an upper reflux probe 701, an upper liquid replenishment probe 702, a lower reflux probe 703 and a lower liquid replenishment probe 704 are installed on the liquid level electronic control device 700, and a liquid replenishment tube 705 is installed on one side of the liquid storage tank 100 and the treatment tank 101, and one end of the liquid replenishment tube 705 is connected to a water pump, a first conduit 600 is installed between the liquid storage tank 100 and the ammonia escape treatment tank 504, and a third drive device 601 is installed on the first conduit 600, a second conduit 602 is installed between the liquid storage tank 100 and the treatment tank 101, and a fourth drive device 603 is installed on the second conduit 602, a third conduit 604 is installed between the evaporator 200 and the liquid storage tank 100, and a fifth drive device 605 is installed on the third conduit 604. In this arrangement, water vapor generated during the evaporation process enters the liquid storage tank 100 or the treatment tank 101. Material loss caused by the reaction process and the dosing or stirring process will cause the liquid level to change. The liquid level electronic control device 700 can effectively maintain the liquid level at a set height.

[0080] like Figure 1 , Figure 3 As shown, further, a conical cover 103 is installed on the top of the gas collecting box 102, a suction pipe 104 is installed on the top of the conical cover 103, a high-pressure suction fan 105 is installed at one end of the suction pipe 104, an ammonia detector 106 is installed at the outlet end of the high-pressure suction fan 105, a first temperature sensor 107 is installed on one side of the gas collecting box 102, a second temperature sensor 109 is installed on one side of the processing box 101, and a pH detector 108 is installed in the liquid storage tank 100. In this setting, the ammonia generated during the reaction is absorbed by the clean water. When the ammonia concentration in the clean water is saturated, it becomes a high-concentration ammonia water. At this time, the ammonia water can no longer absorb ammonia. After the ammonia escapes, it enters the ammonia detector 106 through the suction pipe 104. The high-pressure suction fan 105 is used to generate negative pressure to adjust the liquid level.

[0081] The first driving device 402 , the second driving device 503 , the third driving device 601 , the fourth driving device 603 and the fifth driving device 605 are all water pumps.

[0082] Example 3

[0083] like Figures 7 to 13 As shown, a multifunctional exhaust gas treatment device with a carbon capture function also includes a processor, on which a control system for controlling the operation of the multiple exhaust gas treatment devices with a carbon capture function is configured, and the control system includes a detection unit and an execution unit:

[0084] The detection unit is used to detect various values ​​in the waste gas treatment mechanism and the waste liquid treatment mechanism, and generate instructions or signals based on the detection results;

[0085] The execution unit is used to execute the liquid level adjustment program based on the liquid level electronic control device 700 to control the liquid level to maintain its height.

[0086] The detection unit includes a temperature identification strategy, which includes configuring a start identification threshold in the second temperature sensor 109, and the start identification threshold represents the temperature corresponding to the high-temperature exhaust gas entering the processing box 101. The temperature identification strategy also includes obtaining the real-time temperature value a of the second temperature sensor 109. When the real-time temperature value a is greater than the start identification threshold, a power-on signal is generated, and the entire device is powered on based on the power-on signal to represent that the entire device has started to run. When the real-time temperature value a is less than or equal to the start identification threshold, a power-off signal is generated, and the entire device is powered off based on the power-off signal to represent that the entire device has stopped running.

[0087] The detection unit also includes a temperature detection strategy, which includes configuring a cooling operation threshold in the first temperature sensor 107 and the second temperature sensor 109, the cooling operation threshold represents the temperature required for the heat exchange mechanism to operate, configuring a cooling stop threshold in the first temperature sensor 107 and the second temperature sensor 109, the cooling stop threshold represents the temperature required for the heat exchange mechanism to stop operating, and the temperature detection strategy also includes obtaining a real-time temperature value b of the first temperature sensor 107, and controlling the operation of the heat exchange mechanism based on a comparison between the real-time temperature value a and the real-time temperature value b and the cooling operation threshold and the cooling stop threshold;

[0088] When the real-time temperature value a and the real-time temperature value b satisfy that any value is greater than the cooling operation threshold, a working signal is generated, and the heat exchange mechanism is controlled to operate based on the working signal to indicate that the device starts to cool down. Otherwise, an empty signal is generated, and the heat exchange mechanism is maintained in the current state based on the empty signal. When the real-time temperature value a and the real-time temperature value b satisfy that both are less than the cooling stop threshold at the same time, a shutdown signal is generated, and the heat exchange mechanism is controlled to shut down based on the shutdown signal to indicate that the device has finished cooling down. Otherwise, an empty signal is generated, and the heat exchange mechanism is maintained in the current state based on the empty signal.

[0089] The detection unit also includes an ammonia detection strategy, which includes configuring an ammonia concentration threshold in the ammonia detector 106, and also includes obtaining a real-time ammonia concentration value of the ammonia detector 106, and generating corresponding instructions based on the comparison between the real-time ammonia concentration value and the ammonia concentration threshold. When the real-time ammonia concentration value is greater than the ammonia concentration threshold, ammonia escapes, indicating that the liquid absorbing ammonia in the gas collecting box 102 has reached a saturated state, and an extraction instruction is generated. Based on the extraction instruction, the second drive device 503 is controlled to operate to indicate that the ammonia water in the gas collecting box 102 is absorbed into the ammonia escape treatment box 504. When the real-time ammonia concentration value is less than or equal to the ammonia concentration threshold, ammonia does not escape, indicating that the liquid absorbing ammonia in the gas collecting box 102 has not reached a saturated state, and a standby instruction is generated, and the second drive device 503 is controlled to be in a standby state based on the standby instruction.

[0090] The detection unit also includes a concentration detection strategy, which includes configuring a concentration detection threshold in the concentration detector 207, and also includes obtaining a real-time liquid concentration value of the concentration detector 207, and generating a corresponding instruction based on a comparison between the real-time liquid concentration value and the concentration detection threshold. When the real-time liquid concentration value is greater than the concentration detection threshold, it indicates that the waste liquid needs to be discharged, and a valve opening instruction is generated. Based on the valve opening instruction, the valve is controlled to open to discharge the liquid. When the real-time liquid concentration value is less than or equal to the concentration detection threshold, it indicates that the waste liquid does not need to be discharged, and a valve closing instruction is generated. Based on the valve closing instruction, the valve is controlled to close to prevent liquid discharge.

[0091] The detection unit also includes a liquid level control strategy, which includes a liquid replenishment control program and a reflux control program;

[0092] The liquid replenishment control program includes generating instructions based on the liquid levels detected by the upper liquid replenishment probe 702 and the lower liquid replenishment probe 704. When the liquid level reaches the lower liquid replenishment probe 704, it indicates that the liquid needs to be replenished, and a liquid replenishment start instruction and a liquid replenishment signal are generated. When the liquid level reaches the upper liquid replenishment probe 702, it indicates that the liquid replenishment is completed, and a liquid replenishment stop instruction is generated.

[0093] The reflux control program includes generating instructions based on the liquid levels detected by the upper reflux probe 701 and the lower reflux probe 703. When the liquid level reaches the upper reflux probe 701, it indicates that the liquid needs to be reduced, and a reflux start instruction and a reflux signal are generated. When the liquid level reaches the lower reflux probe 703, it indicates that the liquid reflux is completed, and a reflux stop instruction is generated.

[0094] The execution unit includes executing a corresponding program according to the acquired signal of fluid replenishment or reflux;

[0095] When a liquid replenishment signal is obtained, the execution unit executes a liquid replenishment control program. When the execution unit obtains a liquid replenishment start instruction, the water pump works and replenishes liquid in the liquid storage tank 100 and the processing tank 101 to raise the liquid level. When the execution unit obtains a liquid replenishment stop instruction, the water pump stops working to maintain the liquid level.

[0096] When a reflux signal is obtained, the execution unit executes the reflux control program. When the execution unit obtains a reflux start instruction, the water pump works and refluxes the liquid in the liquid storage tank 100 and the processing tank 101 to lower the liquid level. When the execution unit obtains a reflux stop instruction, the water pump stops working to maintain the liquid level.

[0097] The implementation principle of a multifunctional exhaust gas treatment device with a carbon capture function in this embodiment is as follows: before the device is put into operation, the smoke inlet 204 can be connected to the exhaust gas source, and at the same time, the reaction agent is added to the treatment box 101, and clean water is added to the gas collecting box 102, and the high-pressure suction fan 105 is started. The strong suction force generated by the high-pressure suction fan 105 causes the clean water and the reaction agent to generate negative pressure, and the height of the clean water or reaction agent liquid level can be adjusted by adjusting the suction force of the high-pressure suction fan 105;

[0098] During operation, high-temperature exhaust gas enters the exhaust pipe 203 through the smoke inlet 204, and the exhaust pipe 203 is subjected to high temperature. At the same time, the high-temperature exhaust gas enters the liquid storage tank 100 through the connecting pipe 201. At the same time, the air oxidation regulating valve 202 is used to mix air into the exhaust gas, and the oxygen in the air is used to oxidize the nitrogen monoxide in the exhaust gas into nitrogen dioxide, thereby saving the use of oxidants and reducing costs.

[0099] After the waste gas enters the liquid storage tank 100, it enters the treatment tank 101 along the pipeline between the liquid storage tank 100 and the treatment tank 101, and reacts with the reaction agent in the treatment tank 101. The waste gas is divided into small bubbles by the multi-layer bubble dividing plate 302, so that the waste gas and the reaction agent react fully.

[0100] After the exhaust gas reacts, ammonia is generated. When passing through the demister 300, the droplets attached to the ammonia are removed under the action of the demister 300, and the ammonia enters the gas collecting box 102 through the lower branch pipe 501 and the upper branch pipe 500, and the ammonia is adsorbed by clean water;

[0101] As the reaction is completed, the waste liquid in the treatment box 101 enters the liquid storage tank 100 through the second conduit 602 under the action of the fourth driving device 603, and reacts and precipitates in the liquid storage tank 100. At the same time, the pH detector 108 detects the pH of the waste liquid. When the pH reaches the pH threshold, the fifth driving device 605 guides the waste liquid in the liquid storage tank 100 into the evaporator 200 through the third conduit 604. The waste liquid is evaporated by the high temperature of the exhaust pipe 203 in the evaporator 200. When the waste liquid evaporates to a certain concentration, the discharge port 206 is opened to discharge the high-concentration waste liquid, which can be used as fertilizer after subsequent processing.

[0102] The water vapor generated during the evaporation process enters the liquid storage tank 100 or the processing tank 101. The material loss caused by the reaction process and the dosing or stirring process will cause the liquid level to change. The liquid level electronic control device 700 can effectively maintain the liquid level at a set height.

[0103] Ammonia generated during the reaction is absorbed by clean water. When the ammonia concentration in the clean water is saturated, it becomes high-concentration ammonia water. At this time, the ammonia water cannot continue to absorb ammonia. After the ammonia escapes, it enters the ammonia detector 106 through the suction pipe 104. When the ammonia detector 106 detects ammonia, the second driving device 503 allows the ammonia water to pass through the upper branch pipe 500 and the vertical pipe 502 into the ammonia escape treatment box 504. The ammonia water stored in the ammonia escape treatment box 504 can be used as a liquid medicine to enter the liquid storage tank 100 through the third driving device 601 to react with the waste liquid to achieve the purpose of recycling.

[0104] During the reaction, it is necessary to prevent the precipitation of carbon dioxide, so the reaction temperature needs to be controlled. The heat exchanger 404 is set to cool the processing box 101 and the gas collecting box 102. When the reaction temperature is high, the first drive device 402 drives the circulating water in the cooling water tank 400 to circulate in the heat exchanger 404, and dissipates heat through the radiator 403, thereby achieving temperature reduction.

[0105] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A multiple exhaust gas treatment device with carbon capture function, characterized in that: include: An exhaust gas treatment mechanism, the exhaust gas treatment mechanism comprising a liquid storage tank (100), a treatment box (101) being installed on the top of the liquid storage tank (100), a gas collecting box (102) being installed on the top of the treatment box (101), the exhaust gas treatment mechanism performing an exhaust gas reaction through the treatment box (101), and absorbing overflowed harmful gases through the gas collecting box (102); A waste liquid treatment mechanism, the waste liquid treatment mechanism comprising an evaporator (200), a smoke exhaust pipe (203) being installed inside the evaporator (200), and the waste gas treatment mechanism performs evaporation treatment on the waste liquid through heat generated by the smoke exhaust pipe (203); The processing box (101) and the air collecting box (102) are both provided with a heat exchange mechanism, the heat exchange mechanism comprising a heat exchanger (404), the heat exchangers (404) located between the processing box (101) and the air collecting box (102) are connected in series with each other, a circulation pipe (401) is installed at one end of the heat exchanger (404), a cooling water tank (400) is installed on the circulation pipe (401), and a radiator (403) and a first driving device (402) are installed on the circulation pipe (401); An ammonia escape treatment box (504) is installed on one side of the liquid storage box (100); a vertical pipe (502) is installed on the top of the ammonia escape treatment box (504); an upper branch pipe (500) and a lower branch pipe (501) are installed on the vertical pipe (502); the upper branch pipe (500) is connected to the bottom of the gas collecting box (102); the lower branch pipe (501) is connected to the top of the treatment box (101); the lower branch pipe (501) is located on the top of the demister (300) inside the treatment box (101); and a second driving device (503) is installed on the vertical pipe (502); A connecting pipe (201) is installed on one side of the evaporator (200), one end of the connecting pipe (201) is connected to the liquid storage tank (100), an air oxidation regulating valve (202) is installed on the connecting pipe (201), a cleaning port (205) is installed on one side of the evaporator (200), a smoke inlet (204) is installed at the bottom of the cleaning port (205) of the evaporator (200), the smoke inlet (204) is connected to the smoke exhaust pipe (203), the top of the smoke exhaust pipe (203) is connected to the inside of the evaporator (200), a discharge port (206) is installed on one side of the evaporator (200), a valve is installed at the discharge port (206), and a concentration detector (207) is also installed on one side of the evaporator (200); A liquid level electronic control device (700) is installed on one side of the liquid storage tank (100) and the treatment tank (101); an upper reflux probe (701), an upper liquid replenishment probe (702), a lower reflux probe (703) and a lower liquid replenishment probe (704) are installed on the liquid level electronic control device (700); a liquid replenishment tube (705) is installed on one side of the liquid storage tank (100) and the treatment tank (101); one end of the liquid replenishment tube (705) is connected to a water pump; the liquid storage tank (100) and the ammonia escape treatment tank are connected to each other. (504), a first conduit (600) is installed between the liquid storage tank (100) and the processing tank (101), a third driving device (601) is installed on the first conduit (600), a second conduit (602) is installed between the liquid storage tank (100) and the processing tank (101), a fourth driving device (603) is installed on the second conduit (602), a third conduit (604) is installed between the evaporator (200) and the liquid storage tank (100), a fifth driving device (605) is installed on the third conduit (604); A conical cover (103) is installed on the top of the gas collecting box (102), a suction pipe (104) is installed on the top of the conical cover (103), a high-pressure suction fan (105) is installed at one end of the suction pipe (104), an ammonia detector (106) is installed at the outlet end of the high-pressure suction fan (105), a first temperature sensor (107) is installed on one side of the gas collecting box (102), a second temperature sensor (109) is installed on one side of the treatment box (101), and a pH detector (108) is installed in the liquid storage box (100); The multiple exhaust gas treatment devices with carbon capture function also include a processor, and the processor is configured with a control system for controlling the operation of the multiple exhaust gas treatment devices with carbon capture function, and the control system includes a detection unit and an execution unit: The detection unit is used to detect various values ​​in the waste gas treatment mechanism and the waste liquid treatment mechanism, and generate instructions or signals based on the detection results; The execution unit is used to execute a liquid level adjustment program based on the liquid level electronic control device (700) to control the liquid level to maintain a height; The detection unit comprises a temperature identification strategy, wherein the temperature identification strategy comprises configuring a start identification threshold in the second temperature sensor (109), wherein the start identification threshold represents the temperature corresponding to the exhaust gas introduced into the treatment box (101), and the temperature identification strategy further comprises obtaining a real-time temperature value a of the second temperature sensor (109), generating a power-on signal when the real-time temperature value a is greater than the start identification threshold, and powering on the entire device based on the power-on signal to represent that the entire device has started to operate, and generating a power-off signal when the real-time temperature value a is less than or equal to the start identification threshold, and powering off the entire device based on the power-off signal to represent that the entire device has stopped operating; The detection unit further comprises a temperature detection strategy, the temperature detection strategy comprising configuring a cooling operation threshold in the first temperature sensor (107) and the second temperature sensor (109), the cooling operation threshold representing the temperature required for the heat exchange mechanism to operate, configuring a cooling stop threshold in the first temperature sensor (107) and the second temperature sensor (109), the cooling stop threshold representing the temperature required for the heat exchange mechanism to stop operating, the temperature detection strategy further comprising acquiring a real-time temperature value b of the first temperature sensor (107), and controlling the operation of the heat exchange mechanism based on a comparison between the real-time temperature value a and the real-time temperature value b and the cooling operation threshold and the cooling stop threshold; When the real-time temperature value a and the real-time temperature value b satisfy that any value is greater than the cooling operation threshold, a working signal is generated, and the heat exchange mechanism is controlled to work based on the working signal to indicate that the device starts to cool down. Otherwise, an empty signal is generated, and the heat exchange mechanism is maintained in the current state based on the empty signal. When the real-time temperature value a and the real-time temperature value b satisfy that both are less than the cooling stop threshold at the same time, a shutdown signal is generated, and the heat exchange mechanism is controlled to shut down based on the shutdown signal to indicate that the device has finished cooling down. Otherwise, an empty signal is generated, and the heat exchange mechanism is maintained in the current state based on the empty signal. The detection unit also includes an ammonia detection strategy, which includes configuring an ammonia concentration threshold in the ammonia detector (106), and also includes obtaining a real-time ammonia concentration value of the ammonia detector (106), and generating a corresponding instruction based on a comparison between the real-time ammonia concentration value and the ammonia concentration threshold. When the real-time ammonia concentration value is greater than the ammonia concentration threshold, ammonia escapes, indicating that the liquid absorbing ammonia in the gas collecting box (102) has reached a saturated state, and an extraction instruction is generated. Based on the extraction instruction, the second drive device (503) is controlled to operate to indicate that the ammonia water in the gas collecting box (102) is absorbed into the ammonia escape treatment box (504). When the real-time ammonia concentration value is less than or equal to the ammonia concentration threshold, ammonia does not escape, indicating that the liquid absorbing ammonia in the gas collecting box (102) has not reached a saturated state, and a standby instruction is generated, and the second drive device (503) is controlled to be in a standby state based on the standby instruction; The detection unit further comprises a concentration detection strategy, wherein the concentration detection strategy comprises configuring a concentration detection threshold in the concentration detector (207), and further comprises obtaining a real-time liquid concentration value of the concentration detector (207), and generating a corresponding instruction based on a comparison between the real-time liquid concentration value and the concentration detection threshold; when the real-time liquid concentration value is greater than the concentration detection threshold, it indicates that the waste liquid needs to be discharged, and a valve opening instruction is generated, and the valve is controlled to be opened based on the valve opening instruction to discharge the liquid; when the real-time liquid concentration value is less than or equal to the concentration detection threshold, it indicates that the waste liquid does not need to be discharged, and a valve closing instruction is generated, and the valve is controlled to be closed based on the valve closing instruction to prevent the liquid from being discharged.

2. A multiple exhaust gas treatment device with carbon capture function according to claim 1, characterized in that: The processing box (101) and the gas collecting box (102) are both provided with a dividing mechanism inside, the dividing mechanism comprising a level adjustment pile (301), a bubble dividing plate (302) being installed on the level adjustment pile (301), a bubble dividing plate (302) being provided with a bubble dividing hole (303), the dividing mechanism dividing bubbles through the bubble dividing hole (303), and a demister (300) being also installed inside the processing box (101) and the gas collecting box (102).

3. A multiple exhaust gas treatment device with carbon capture function according to claim 2, characterized in that: The detection unit also includes a liquid level control strategy, which includes a liquid replenishment control program and a reflux control program; The liquid replenishment control program includes generating instructions based on the liquid level detected by the upper liquid replenishment probe (702) and the lower liquid replenishment probe (704); when the liquid level reaches the lower liquid replenishment probe (704), it indicates that the liquid needs to be replenished, and a liquid replenishment start instruction and a liquid replenishment signal are generated; when the liquid level reaches the upper liquid replenishment probe (702), it indicates that the liquid replenishment is completed, and a liquid replenishment stop instruction is generated; The reflux control program includes a liquid level generation instruction based on the detection of the upper reflux probe (701) and the lower reflux probe (703). When the liquid level reaches the upper reflux probe (701), it indicates that the liquid needs to be reduced, and a reflux start instruction and a reflux signal are generated. When the liquid level reaches the lower reflux probe (703), it indicates that the liquid reflux is completed, and a reflux stop instruction is generated.

4. A multiple exhaust gas treatment device with carbon capture function according to claim 3, characterized in that: The execution unit includes executing a corresponding program according to the acquired signal of fluid replenishment or reflux; When a fluid replenishment signal is obtained, the execution unit executes a fluid replenishment control program; When the backflow signal is acquired, the execution unit executes the backflow control program.

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