Factory waste gas treatment and recovery device

Abstract

The utility model discloses a factory waste gas treatment and recovery device, which belongs to the technical field of environmental protection and comprises a nano-bubble generating device, an output pipe is fixedly communicated with the outer side wall of the nano-bubble generating device, a sealing cover is fixedly communicated with one end, far away from the nano-bubble generating device, of the output pipe, and the outer wall of the sealing cover is fully wrapped by an aluminum film. The inner side wall of the sealing cover is fixedly connected with an ultraviolet lamp tube, the outer side wall of the ultraviolet lamp tube is provided with a quartz protective cover, and the bottom of the sealing cover is fixedly communicated with a transmission tube. According to the factory waste gas treatment and recovery device, through cooperative use of the nanobubble generating device, the output pipe, the sealing cover, the ultraviolet lamp tube, the transmission pipe, the absorption tower, the demister, the spray head, the filler, the connecting pipe, the filter pipe and the MXene nanofiltration membrane, the energy consumption during degradation of multiple pollutants in flue gas is reduced, meanwhile, harmful ingredients are converted into recyclable agricultural chemical fertilizer raw materials, and the environment is protected. And resource utilization of harmful substances is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to environmental protection field technical field, concretely relates to a factory waste gas treatment recovery device. BACKGROUND

[0002] In the industrial production process, waste gas emission is one of the main sources of environmental pollution, wherein the waste gas emitted by chemical industry, coating, pharmaceutical industry and the like contains benzene series, sulfur oxide, nitrogen oxide and particulate matter and the like complex pollutants;

[0003] However, the current factory for denitration method is mainly selective catalytic reduction (SCR) method and selective non-catalytic reduction (SNCR) method. The catalyst cost of SCR system is high, the active ingredient price of the catalyst is high, and the catalyst consumption is related to flue gas volume, nitrogen oxide concentration and the like factors, and the alkali metal ion can react with the active ingredient of the catalyst, causing the catalyst to be poisoned and inactivated. The cost of SCNR is relatively low, the investment is less, but the denitration efficiency is relatively low, generally about 30%-60%, and the temperature window requirement is relatively strict. And the process has great safety hidden danger in actual application, cannot realize the resource utilization of waste, and a part of the current factory for desulfurization method is mainly limestone gypsum method. The flue gas is pretreated and then enters the absorption tower, and is countercurrently contacted with the limestone slurry sprayed downward, and a desulfurization reaction occurs. The purified flue gas is discharged after removing water mist by a mist eliminator. The calcium sulfite slurry generated in the absorption tower is oxidized and crystallized, and then pumped to a gypsum dehydration system by gypsum to produce gypsum products, which causes the equipment in the limestone desulfurization method to be easily scaled and blocked. Calcium sulfate and the like may be crystallized and precipitated on the surface of the equipment, forming scale, blocking the pipeline and nozzle, affecting the normal operation of the system, and the generated wastewater also pollutes the environment. The wastewater treatment cost is high, and the operation cost is high, and a large amount of limestone raw materials need to be consumed;

[0004] To solve the above problems, a factory waste gas treatment recovery device is provided in the application. UTILITY MODEL CONTENTS

[0005] In view of the problems in the related art, the utility model provides a factory waste gas treatment recovery device to overcome the above technical problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a factory waste gas treatment recovery device, including nanometer bubble generating device, the outside wall of nanometer bubble generating device is fixedly connected with the output pipe, the one end of output pipe away from nanometer bubble generating device is fixedly connected with the seal cover, the outer wall of seal cover adopts aluminum film full package, the inner side wall of seal cover is fixedly connected with ultraviolet light lamp tube, the outside wall of ultraviolet light lamp tube is provided with quartz protection cover, the bottom of seal cover is fixedly connected with transmission pipe, the outside wall of one end of transmission pipe away from seal cover is fixedly connected with the absorption tower, the inner side wall of absorption tower is fixedly connected with demister, the bottom of demister is provided with shower nozzle, the fixedly connected with transmission pipe in absorption tower inside portion of shower nozzle, the inner side wall of absorption tower is fixedly connected with filler, the outer side wall of absorption tower is fixedly connected with the connecting pipe, the one end of connecting pipe away from absorption tower is fixedly connected with filter pipe, the inner side wall of filter pipe is fixedly connected with MXene nanofiltration membrane.

[0008] Preferably, the inner wall of the connection between the absorption tower and the connecting pipe is fixedly connected with a ph detector, and the bottom of the ph detector is fixedly connected with a valve, and the one end of the valve inside the connecting pipe in the absorption tower is fixedly connected, by setting the ph detector and the valve, the PH detection module is integrated, and the pH value feedback regulation function is realized through the control circuit of the pressure pump and the valve.

[0009] Preferably, the outer side wall of the filter pipe is rotatably connected with a sealing plate, and the sealing plate corresponds to the position of the MXene nanofiltration membrane, and by setting the sealing plate, the MXene nanofiltration membrane is replaced.

[0010] Preferably, the outer side wall of the absorption tower is provided with an observation window, and the observation window is made of transparent glass, and the outer side wall of the absorption tower is provided with a side window, and by setting the side window, the operator can observe the inside of the absorption tower.

[0011] Preferably, the outer side wall of the absorption tower is provided with an air inlet, and the top of the absorption tower is provided with an air outlet, and by setting the air inlet and the air outlet, the air outlet is located at the top of the absorption tower, cooperates with the demister, intercepts the liquid droplets or foam carried in the gas, and prevents secondary pollution.

[0012] In summary, the technical effects and advantages of the utility model are as follows: the factory waste gas treatment recovery device is used in cooperation with the nanometer bubble generating device, the output pipe, the seal cover, the ultraviolet light lamp tube, the transmission pipe, the absorption tower, the demister, the shower nozzle, the filler, the connecting pipe, the filter pipe and the MXene nanofiltration membrane, reduces the energy consumption during degradation of the multi-pollutant smoke, converts the harmful ingredients into recyclable agricultural fertilizer raw materials, and facilitates the resource utilization of harmful substances.

[0013] Through the cooperation of the connecting pipe, the filtering pipe, the MXene nanofiltration membrane and the sealing plate, the MXene nanofiltration membrane can be conveniently checked and replaced by the operator, nitrogen sulfide intercepted by the MXene nanofiltration membrane can be recycled, the discharge of pollutants is reduced, and the resource utilization rate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model;

[0015] Figure 2 It is a structure schematic view of the ultraviolet lamp tube and related parts of the utility model;

[0016] Figure 3 It is a structure schematic view of the filler and related parts of the utility model;

[0017] Figure 4 It is a structure schematic view of the MXene nanofiltration membrane and related parts of the utility model;

[0018] Figure 5 It is a flow schematic view of the utility model.

[0019] In the drawing:

[0020] 1, nanobubble generating device; 2, output pipe; 3, sealing cover; 4, ultraviolet lamp tube; 5, transmission pipe; 6, absorption tower; 7, mist eliminator; 8, spray head; 9, filler; 10, ph detector; 11, valve; 12, connecting pipe; 13, filtering pipe; 14, MXene nanofiltration membrane; 15, sealing plate; 16, observation window; 17, side window; 18, air inlet; 19, air outlet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0022] Referring to Figures 1-4The utility model provides a factory waste gas treatment recovery device, including nanometer bubble generating device 1, the outside wall of nanometer bubble generating device 1 is fixedly connected with the output pipe 2, the one end of output pipe 2 away from nanometer bubble generating device 1 is fixedly connected with sealed cover 3, the outer wall of sealed cover 3 is wrapped with aluminium film, and the reflectivity of anodic aluminium film is better in UVC wave band, scattering ultraviolet is focused to target area through mirror surface reflection principle, makes radiation intensity improve, the inner side wall of sealed cover 3 is fixedly connected with ultraviolet light tube 4, and the outer side wall of ultraviolet light tube 4 is provided with quartz protective cover, because the light transmittance of synthetic quartz is strong in ultraviolet wave band, can effectively reduce germicidal ultraviolet lamp loss rate, the bottom of sealed cover 3 is fixedly connected with transmission pipe 5, and the outer side wall of the one end of transmission pipe 5 away from sealed cover 3 is fixedly connected with absorption tower 6, the inner side wall of absorption tower 6 is fixedly connected with demister 7, and the bottom of demister 7 is provided with spray head 8, and spray head 8 is fixedly connected with the part of transmission pipe 5 in absorption tower 6, and the inner side wall of absorption tower 6 is fixedly connected with filler 9, and filler 9 is paur ring filler 9, and paur ring filler 9 is a kind of high-efficiency scattered heap filler 9 widely used in chemical industry, environmental protection field, belongs to the representative of improved annular filler 9, its structural design and mass transfer performance have remarkable advantages in industrial tower, gas forms multidirectional diffusion path after passing through paur ring filler 9 window hole, prolongs the residence time, while gas and liquid form cross-flow contact in three-dimensional space, improves mass transfer coefficient, and the outer side wall of absorption tower 6 is fixedly connected with connecting pipe 12, and the one end of connecting pipe 12 away from absorption tower 6 is fixedly connected with filter pipe 13, and the inner side wall of filter pipe 13 is fixedly connected with MXene nanofiltration membrane 14, and MXene nanofiltration membrane 14 is located at the middle part of filter pipe 13.

[0023] Referring to Figure 1 , the inner wall of the connection between absorption tower 6 and connecting pipe 12 is fixedly connected with ph detector 10, and the bottom of ph detector 10 is fixedly connected with valve 11. The pH sensor is immersed in the liquid to be measured, a potential difference is generated, and the linearization processing is performed by the transmitter to obtain a voltage signal. The signal is transmitted to the PLC analog input port through a shielded cable. The input signal is converted to an engineering value by the PLC, and then compared with a preset threshold value. If the requirement is met, the PLC outputs a digital signal to control the opening and closing of valve 11. The one end of valve 11 inside the absorption tower 6 is fixedly connected with connecting pipe 12.

[0024] Referring to Figure 1 , the outer side wall of filter pipe 13 is rotatably connected with sealing plate 15, and sealing plate 15 corresponds to the position of MXene nanofiltration membrane 14. During use, the operator can rotate sealing plate 15 to further observe and clean the inside of filter pipe 13 through the gap between sealing plate 15 and filter pipe 13.

[0025] Referring to Figure 1The outer side wall of the absorption tower 6 is provided with an observation window 16, the observation window 16 is transparent glass, and the outer side wall of the absorption tower 6 is provided with a side window 17.

[0026] With reference to Figure 1 The outer side wall of the absorption tower 6 is provided with an air inlet 18, and the top of the absorption tower 6 is provided with an air outlet 19.

[0027] Working principle: tap water and specific gas are introduced into the nano bubble generating device 1, the generated micro-nano bubble water enters the front end sealing cover 3, the ultraviolet light emitted by the ultraviolet light tube 4 is used for pretreating the micro-nano bubble water, a large amount of hydroxyl radicals and singlet oxygen are generated, the degradation efficiency of pollutants can be significantly improved, and obvious synergistic effect is shown;

[0028] The micro-nano bubble water irradiated by the ultraviolet light enters the inside of the absorption tower 6 through the transmission pipe 5 and is sprayed by the spray head 8, the flue gas is fully mixed with the bubble water through the intermediate filler 9, carbon monoxide, nitrogen oxides and sulfur dioxide in the flue gas are oxidized and absorbed, and after absorption, a mixed solution is formed, the purified flue gas is filtered through the upper end demister 7, and after reaching the standard, the flue gas is discharged into the atmosphere, further, when the mixed solution flows through the ph detector 10, the pH value of the mixed solution is measured by the pH meter probe designed on the ph detector 10, after reaching the set value, a signal is sent by the controller to open the valve 11, and then the mixed solution enters the inside of the filter pipe 13 through the connecting pipe 12.

[0029] After the solution after oxidation enters the inside of the filter pipe 13, because the MXene nanofiltration membrane 14 has excellent compressive strength and enhanced electrostatic repulsion, low-valent salt ions in the flue gas wastewater are intercepted, which is beneficial to the enrichment of composite ammoniated fertilizer raw materials, and the reuse of sulfur and ammonia resources in the flue gas is realized.

[0030] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A plant exhaust gas treatment and recovery device comprising a nanobubble generating device (1), characterized in that, The outer side wall of the nanobubble generating device (1) is fixedly connected with an output pipe (2), one end of the output pipe (2) away from the nanobubble generating device (1) is fixedly connected with a sealing cover (3), the outer wall of the sealing cover (3) is fully wrapped with an aluminum film, the inner side wall of the sealing cover (3) is fixedly connected with an ultraviolet lamp (4), the outer side wall of the ultraviolet lamp (4) is provided with a quartz protective cover, the bottom of the sealing cover (3) is fixedly connected with a transmission pipe (5), one end of the transmission pipe (5) away from the sealing cover (3) is fixedly connected with an absorption tower (6) on the outer side wall, the inner side wall of the absorption tower (6) is fixedly connected with a demister (7), the bottom of the demister (7) is provided with a spray head (8), the spray head (8) is fixedly connected with the part of the transmission pipe (5) located inside the absorption tower (6), the inner side wall of the absorption tower (6) is fixedly connected with a filler (9), the outer side wall of the absorption tower (6) is fixedly connected with a connecting pipe (12), one end of the connecting pipe (12) away from the absorption tower (6) is fixedly connected with a filter pipe (13), the inner side wall of the filter pipe (13) is fixedly connected with an MXene nanofiltration membrane (14).

2. A plant exhaust gas treatment and recovery device according to claim 1, characterized in that, The inner wall of the connection between the absorption tower (6) and the connecting pipe (12) is fixedly connected with a ph detector (10), the bottom of the ph detector (10) is fixedly connected with a valve (11), and one end of the valve (11) fixedly connected with the connecting pipe (12) is located inside the absorption tower (6).

3. A plant exhaust gas treatment and recovery device according to claim 1, characterized in that, The outer side wall of the filter pipe (13) is rotatably connected with a sealing plate (15), and the sealing plate (15) corresponds to the position of the MXene nanofiltration membrane (14).

4. A plant exhaust gas treatment and recovery device according to claim 1, characterized in that, The outer side wall of the absorption tower (6) is provided with an observation window (16), the observation window (16) is transparent glass, and the outer side wall of the absorption tower (6) is provided with a side window (17).

5. A plant exhaust gas treatment and recovery device according to claim 1, characterized in that, The outer side wall of the absorption tower (6) is provided with an air inlet (18), and the top of the absorption tower (6) is provided with an air outlet (19).

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