Spraying waste gas purification and wastewater treatment integrated circulation facility

Abstract

The utility model discloses a spraying waste gas purification and waste water treatment integrated circulation facility, relates to the technical field of waste gas and waste water treatment, and aims to solve the problems that the annual operation, maintenance and hazardous waste treatment cost of an existing waste gas treatment system is high, the waste gas concentration can be reduced to less than 80%, the waste gas treatment concentration is not high, the subsequent continuity and stability are poor, and the waste gas treatment cost is low. The waste gas emission is not up to the standard. A dry filter box is arranged on one side of the spray tower, and a reaction tank is arranged on one side of the dry filter box; the air pipe is arranged between the dry type filter box and the spray tower, a demisting ball chamber is arranged at one end of the air pipe, the demisting ball chamber is located at the upper end of the spray tower, and an air pipe elbow is arranged on the front surface of the spray tower; the spraying water pipe is arranged on one side of the spraying tower, a spraying water pump is arranged at one end of the spraying water pipe, and spraying blades are arranged in the spraying tower.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas and waste water treatment, in particular to an integrated circulation facility for spraying waste gas purification and waste water treatment. Background Art

[0002] Industrial and manufacturing industries generate waste gas during the production process, especially the spraying workshop generates more waste gas. Usually, waste gas treatment devices are used to treat waste gas to reduce environmental pollution. Waste gas treatment equipment mainly refers to an environmental protection equipment that uses different process technologies to recycle or remove and reduce harmful components of exhaust gas to protect the environment and purify the air.

[0003] For example, the Chinese authorized patent with announcement number CN210905607U (organic waste gas treatment equipment and organic waste gas treatment components): including superoxide micro-nano bubble device, photocatalytic oxidation device, waste gas pipeline, water inlet pipeline and drainage pipeline. This organic waste gas treatment equipment can remove dust from organic waste gas through micro-nano bubbles, avoiding the problem of reducing waste gas treatment efficiency due to dust adhering to UV lamps and photocatalytic plates; at the same time, under the action of superoxide micro-nano bubbles and photocatalytic oxidation devices, organic waste gas can be degraded, and toxic and harmful substances in waste gas can be converted into non-toxic substances. Moreover, this organic waste gas treatment equipment does not require high temperature conditions during operation, and does not require ignition, so there will be no explosion, which improves safety during operation.

[0004] However, the existing waste gas treatment system has high annual operation, maintenance, and hazardous waste treatment costs, and the waste gas concentration can be reduced by less than 80%. The waste gas treatment concentration is not high, and the subsequent sustainability and stability are poor, which easily leads to waste gas emissions that do not meet the standards; therefore, it does not meet existing needs. In this regard, we have proposed an integrated recycling facility for spray waste gas purification and wastewater treatment. Utility Model Content

[0005] The purpose of the utility model is to provide an integrated circulation facility for spraying waste gas purification and wastewater treatment to solve the problems of high annual operation, maintenance and hazardous waste treatment costs of the existing waste gas treatment system proposed in the above background technology, and the waste gas concentration can be reduced by less than 80%, the waste gas treatment concentration is not high, and the subsequent sustainability and stability are poor, which easily leads to the waste gas emission not meeting the standards.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated circulation facility for spraying waste gas purification and wastewater treatment, comprising: a spray tower, a dry filter box is arranged on one side of the spray tower, and a reaction pool is arranged on one side of the dry filter box;

[0007] Also includes:

[0008] An air duct is arranged between the dry filter box and the spray tower, a defogger ball chamber is arranged at one end of the air duct, and the defogger ball chamber is located at the upper end of the spray tower, and an air duct elbow is arranged on the front surface of the spray tower;

[0009] A spray water pipe is arranged on one side of the spray tower, a spray water pump is arranged at one end of the spray water pipe, spray blades are arranged inside the spray tower, and a spray tower sewage pump is arranged inside the water tank on the rear end side of the spray tower.

[0010] Preferably, a sewage pool is provided at the lower end of the reaction pool, a clean water pool is provided at the front end of the sewage pool, a sewage pump is provided inside the sewage pool, and a clean water pump is provided inside the clean water pool.

[0011] Preferably, a sewage recovery pipe is provided at the upper end of the sewage pool, and a clean water replenishing valve is provided between one side of the sewage recovery pipe and one end of the clean water pump.

[0012] Preferably, a reaction pool grid is provided inside the reaction pool, a stirring motor is provided on one side of the reaction pool grid, a diaphragm pump is provided on one side of the reaction pool, and a reagent metering pump is provided at the rear end of the reaction pool.

[0013] Preferably, a connecting pipe is provided on the upper surface of the dry filter box, and one end of the connecting pipe is externally connected to an activated carbon box.

[0014] Preferably, a spray pump is provided on one side of the clean water tank, and a spray head is provided at the end of a pipe at one end of the spray pump.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model allows the paint mist exhaust gas to leave the workshop with the water curtain cabinet exhaust fan and pipeline, and then collects it through the annular water mist channel generated by the high-pressure water mist nozzle. The clean water mist captures the paint mist to form a water mist-like exhaust gas, which enters the spray tower from the air duct elbow, is mixed with water droplets inside the spray tower to generate wastewater, and is formed into water droplets falling through the demisting ball chamber. After the exhaust gas leaves the spray tower through the air duct, it enters the dry filter box and is purified and intercepted by the dry filter box. At this time, the exhaust gas concentration has been reduced by 99%. After leaving the dry filter box, the exhaust gas enters the two-stage granular activated carbon box to complete the last two efficient interceptions. After Voc online real-time detection, the exhaust gas is discharged to the atmosphere through the high chimney by the high static pressure fan, and the small circulation wastewater in the water curtain cabinet and the spray tower is extracted and collected to the wastewater terminal treatment system. The wastewater terminal treatment system is composed of a reaction tank, a sewage tank and a clean water tank. In the reaction tank, the sewage is added with a reasonable pharmaceutical formula, and gradually becomes clean water through stirring, precipitation and separation. The paint particles, solvents, additives and other harmful chemicals in the wastewater are precipitated into the sludge compartment. The diaphragm pump pumps the sludge into the filter press for separation and solidification to obtain clear water that can be recycled for up to two years. Exhaust gas purification and wastewater purification complement each other. Wastewater purification solves the sustainability problem of exhaust gas purification. This purification process is divided into two systems: exhaust gas purification and wastewater purification. The spraying exhaust gas is fully washed and filtered, and the paint mixture and additives are intercepted and solidified, finally realizing the emission of extremely low concentration of spraying exhaust gas, achieving a double circulation process of clean water mist and paint mist mixing and wastewater purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the rear view structure of the connection between the spray tower and the dry filter box of the utility model;

[0019] Figure 3 It is a schematic diagram of the top view of the reaction pool of the utility model;

[0020] In the figure: 1. Spray tower; 2. Dry filter box; 3. Reaction tank; 4. Sewage tank; 5. Clean water tank; 6. Air duct; 7. Chemical metering pump; 8. Diaphragm pump; 9. Stirring motor; 10. Spray pump; 11. Spray head; 12. Spray water pump; 13. Sewage pump; 14. Clean water pump; 15. Spray tower sewage pump; 16. Demisting ball chamber; 17. Spray water pipe; 18. Spray blades; 19. Reaction tank grille; 20. Clean water replenishment valve; 21. Sewage recovery pipeline; 22. Connecting pipeline; 23. Air duct elbow. DETAILED DESCRIPTION

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

[0022] See also Figure 1-3 The utility model provides an embodiment: a spraying waste gas purification and wastewater treatment integrated circulation facility, comprising: a spray tower 1, a dry filter box 2 is arranged on one side of the spray tower 1, and a reaction pool 3 is arranged on one side of the dry filter box 2;

[0023] Also includes:

[0024] The air duct 6 is arranged between the dry filter box 2 and the spray tower 1. A defogger ball chamber 16 is arranged at one end of the air duct 6, and the defogger ball chamber 16 is located at the upper end of the spray tower 1. The front surface of the spray tower 1 is provided with an air duct elbow 23;

[0025] A spray water pipe 17 is arranged on one side of the spray tower 1 , a spray water pump 12 is arranged at one end of the spray water pipe 17 , spray blades 18 are arranged inside the spray tower 1 , and a spray tower sewage pump 15 is arranged inside the water tank on the rear end side of the spray tower 1 .

[0026] After aggregation, the paint mist is captured by the annular water mist channel generated by the high-pressure water mist nozzle. The clean water mist captures the paint mist to form a water mist-like exhaust gas, which enters the spray tower 1 from the air duct elbow 23, and enters the dry filter box 2 for treatment after multi-stage treatment. The exhaust gas purification and discharge process is integrated with the wastewater purification system and started and stopped, which is completely synchronized. The small-circulation wastewater in the water curtain cabinet and the spray tower 1 is collected and collected in the wastewater terminal treatment system. The wastewater terminal treatment system is composed of a reaction tank 3, a sewage tank 4 and a clear water tank 5. The sewage in the reaction tank 3 is added with a reasonable pharmaceutical formula, and gradually becomes clear water through stirring, precipitation and separation. The paint particles and chemical harmful substances such as solvents and additives in the wastewater are precipitated and merged into the sludge compartment. The diaphragm pump 8 pumps the sludge into the filter press for separation and solidification to obtain clear water that can be recycled for up to two years. The exhaust gas purification and wastewater purification complement each other, and the wastewater purification solves the sustainability problem of the exhaust gas purification.

[0027] See also Figure 1 , 2 3. A sewage pool 4 is provided at the lower end of the reaction pool 3, a clean water pool 5 is provided at the front end of the sewage pool 4, a sewage pump 13 is provided inside the sewage pool 4, and a clean water pump 14 is provided inside the clean water pool 5. The wastewater terminal treatment system is composed of the reaction pool 3, the sewage pool 4 and the clean water pool 5, and the wastewater is purified and recycled.

[0028] See also Figure 3A sewage recovery pipe 21 is provided at the upper end of the sewage pool 4, and a clean water replenishment valve 20 is provided between one side of the sewage recovery pipe 21 and one end of the clean water pump 14, which plays the role of sewage recovery and clean water replenishment.

[0029] See also Figure 2 , 3 A reaction tank grid 19 is arranged inside the reaction tank 3, a stirring motor 9 is arranged on one side of the reaction tank grid 19, a diaphragm pump 8 is arranged on one side of the reaction tank 3, and a reagent metering pump 7 is arranged at the rear end of the reaction tank 3. The diaphragm pump 8 pumps the sludge into the filter press for separation and solidification to obtain clear water that can be recycled for up to two years. The waste gas purification and wastewater purification complement each other, and the wastewater purification solves the sustainability problem of the waste gas purification.

[0030] See also Figure 1 , 2 A connecting pipe 22 is provided on the upper surface of the dry filter box 2, and one end of the connecting pipe 22 is connected to an external activated carbon box. A spray pump 10 is provided on one side of the clean water tank 5, and a spray head 11 is provided at the end of the pipe at one end of the spray pump 10. After the exhaust gas leaves the dry filter box 2, it enters an 8-cubic-meter two-stage granular activated carbon box to complete the last two efficient interceptions and improve the purification effect.

[0031] Working principle: When in use, the high-concentration paint mist generated during the spraying process is first absorbed and intercepted by the water pool and water curtain of the spray room water curtain cabinet, with an interception efficiency of 70%. This is the initial purification in the workshop. The remaining paint mist exhaust gas leaves the workshop with the water curtain cabinet exhaust fan and pipeline, and is collected and passed through the annular water mist channel generated by the high-pressure water mist nozzle. The clean water mist captures the paint mist to form water mist exhaust gas, which enters the spray tower 1 from the air duct elbow 23. The water mist exhaust gas enters the 30-cubic-meter spiral spray chamber of the spray tower 1 about 6 meters high from bottom to top, and is mixed with water droplets to generate wastewater. After three interceptions in the spray tower 1, the concentration of the exhaust gas has been reduced by 95%. The remaining 5% concentration of the exhaust gas containing water mist passes through the demister ball chamber 16 at the top of the spray tower 1, which has a cross-sectional area of ​​5 square meters, a thickness of 1.5 meters, and about 7.5 cubic meters. The demister ball chamber 16 forms water droplets and falls. At this time, the exhaust gas concentration has been reduced by 98%. After the low-concentration exhaust gas leaves the spray tower 1 through the air duct 6, it enters the dry filter box 2. The dry filter box 2 is composed of filter cotton, primary efficiency bag and medium efficiency bag. The fifth filter cotton interception, the sixth primary efficiency bag interception, and the seventh medium efficiency bag interception are carried out. At this time The exhaust gas concentration has been reduced by 99%. After the exhaust gas leaves the dry filter box 2, it enters the 8-cubic-meter two-stage granular activated carbon box to complete the last two high-efficiency interceptions. The exhaust gas purification and emission process is integrated with the wastewater purification system and started and stopped in full synchronization. The operating status of the two systems is monitored in real time. When the monitoring threshold is reached, the HMI alarm information is used to prompt the replacement of the corresponding consumables. After the exhaust gas has passed the above nine purification processes, the emission concentration has been reduced by 99.9%. After Voc online real-time detection, the exhaust gas is discharged to the atmosphere through a 20M high chimney by a high static pressure fan, and the water curtain cabinet and spray are extracted. The small-circulation wastewater in tower 1 is collected into the wastewater terminal treatment system, which is composed of a reaction tank 3, a sewage tank 4 and a clean water tank 5. The sewage in the reaction tank 3 is gradually turned into clean water by adding a reasonable pharmaceutical formula, stirring, settling and separating. The paint particles, solvents, additives and other harmful chemicals in the wastewater are precipitated into the sludge compartment. The diaphragm pump 8 pumps the sludge into the filter press for separation and solidification to obtain clear water that can be recycled for up to two years. Exhaust gas purification and wastewater purification complement each other, and wastewater purification solves the sustainability problem of exhaust gas purification.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A spraying waste gas purification and wastewater treatment integrated circulation facility, comprising a spray tower (1), a dry filter box (2) is arranged on one side of the spray tower (1), and a reaction pool (3) is arranged on one side of the dry filter box (2); Features: Also includes: An air duct (6) is arranged between the dry filter box (2) and the spray tower (1); a defogger ball chamber (16) is arranged at one end of the air duct (6); the defogger ball chamber (16) is located at the upper end of the spray tower (1); and an air duct elbow (23) is arranged on the front surface of the spray tower (1); A spray water pipe (17) is arranged on one side of the spray tower (1), a spray water pump (12) is arranged at one end of the spray water pipe (17), spray blades (18) are arranged inside the spray tower (1), and a spray tower sewage pump (15) is arranged inside a water tank on the rear end side of the spray tower (1).

2. The integrated recycling facility for spraying waste gas purification and wastewater treatment according to claim 1 is characterized by: A sewage pool (4) is arranged at the lower end of the reaction pool (3), a clean water pool (5) is arranged at the front end of the sewage pool (4), a sewage pump (13) is arranged inside the sewage pool (4), and a clean water pump (14) is arranged inside the clean water pool (5).

3. The integrated recycling facility for spraying waste gas purification and wastewater treatment according to claim 2 is characterized in that: A sewage recovery pipe (21) is provided at the upper end of the sewage pool (4), and a clean water replenishment valve (20) is provided between one side of the sewage recovery pipe (21) and one end of the clean water pump (14).

4. The integrated recycling facility for spraying waste gas purification and wastewater treatment according to claim 1 is characterized by: A reaction pool grid (19) is arranged inside the reaction pool (3), a stirring motor (9) is arranged on one side of the reaction pool grid (19), a diaphragm pump (8) is arranged on one side of the reaction pool (3), and a reagent metering pump (7) is arranged at the rear end of the reaction pool (3).

5. The integrated recycling facility for spraying waste gas purification and wastewater treatment according to claim 1 is characterized in that: A connecting pipe (22) is provided on the upper surface of the dry filter box (2), and one end of the connecting pipe (22) is externally connected to an activated carbon box.

6. The integrated recycling facility for spraying waste gas purification and wastewater treatment according to claim 2 is characterized by: A spray pump (10) is arranged on one side of the clean water tank (5), and a spray head (11) is arranged at the end of a pipe at one end of the spray pump (10).

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