CN205461702U - Haze processing system - Google Patents

Abstract

The utility model relates to a haze treatment system, comprising a dust removal mechanism, an activated carbon filter tank, a filter tank filled with lime water, and a filter tank filled with sodium hydroxide; the dust removal mechanism is mainly composed of an air inlet, a filter screen, a fan, an anode, Cathode, water injection system, dust discharge switch, liquid filling port, and liquid intake port; the water injection system is mainly composed of nozzles and sewage outlets. The water injection nozzle is close to the upper end of the cathode. There are 8 nozzles evenly distributed on a circle. The sewage outlet is located at the cathode Below, all nozzle control switches and blowdown valve switches are controlled by the same relay, sensors are installed on the cathode, and the water injection system is controlled by PLC; the structure of the filter tank includes a base, an air inlet, a feeding port, an air outlet, a partition The plate and the discharge port separate the filter tank from the middle and are divided into two halves, adopting the form of a channel at the bottom. The smog gas is purified by this system to finally form clean air. The utility model can reduce the impact of smog on the environment and health.

Description

A kind of smog treatment system

technical field

The utility model relates to a smog treatment system, in particular to an environment-friendly smog treatment system.

Background technique

With the rapid development of the country's heavy industry, in recent years, most cities in China have continuously issued orange warnings for smog weather. Hazy days not only affect people's vision, but also cause low visibility in large areas of the city, resulting in various unsafe factors; more importantly, it pollutes the air and increases the incidence of respiratory and cardiovascular patients. The number of deaths caused by excessive PM2.5 is horrifying. Therefore, how to alleviate the impact of smog on people's lives has become a problem of great concern to the whole society.

The emergence of smog, on the one hand, is due to serious pollution in the city, insufficient urban greening, and limited vegetation that cannot effectively absorb pollutants; Insufficient exercise leads to smoggy weather. The source of smog is the extensive use of polluting energy sources. The polluting energy sources are mainly coal and oil, among which coal is the most polluting. At present, coal accounts for more than 65% of my country's energy structure. In order to solve the smog problem, it is necessary to reduce the utilization rate of polluting energy, such as vigorously developing new energy and utilizing low-carbon and environmentally friendly new energy, such as wind energy, solar energy, and tidal energy. However, based on the current economic strength and technological level of the country, it is impossible to achieve an ideal bioenergy utilization rate. Under the current technology, the energy consumed to produce solar panels is more than the energy that can be converted in its service life. Not only did it fail to solve environmental problems, but it also caused a waste of resources, so it is impossible to significantly reduce the use of polluting energy. Therefore, the current reasonable and effective measures to deal with smog weather are: to reduce the use of polluting energy as much as possible, vigorously develop new energy sources, and increase the coverage of environmentally friendly forests, put forward some direct and effective solutions, and purify the factory as much as possible , automobiles and other exhaust gases.

Contents of the invention

The purpose of this utility model is to provide a smog treatment system combining machinery, electronics, physics and chemistry. The smog gas passes through the three-layer purification of this system, and finally forms clean and environmentally friendly air, which is a feasible smog treatment system. purification system.

In order to achieve the above object, the technical solution of the utility model is to provide a haze treatment system, including a dust removal mechanism, an activated carbon filter tank, a filter tank with lime water, and a filter tank with sodium hydroxide; the dust removal mechanism is mainly composed of Air inlet, filter screen, fan, positive electrode (anode), negative electrode (cathode), water injection system, dust discharge switch, liquid filling port, and liquid intake port; the water injection system is mainly composed of nozzles and sewage outlets, and the water injection nozzle is close to the cathode On the upper end, a total of 8 nozzles are evenly distributed on a circle, and the sewage outlet is located below the cathode. All the nozzle control switches and the sewage valve port switch are controlled by the same relay, and sensors are installed on the cathode. The water injection system is controlled by PLC; There are two liquid filter tanks, one is a filter tank with lime water, and the other is a filter tank with a concentrated sodium hydroxide solution. The structure of the filter tank includes a base, an air inlet, a feeding port, an air outlet, and a partition. The plate and the discharge port separate the filter tank from the middle and are divided into two halves, adopting the form of a channel at the bottom.

The system described uses water flushing to remove dust accumulated on the cathode.

Compared with the prior art, the beneficial effect of the utility model is that the blower mainly plays the role of sucking the outside air into the purification system, and the blowing capacity of the blower depends entirely on the speed of the selected motor. The stronger the capacity, so whether the system is used in a large smog purification tower or a small household air purifier, as long as the motor speed is reasonably selected, the blowing capacity of the fan can be reasonably controlled; the positive and negative electrodes adopt special cross-sections to improve The contact area between the air and the positive and negative electrodes, thereby increasing the ionization degree of the polluted gas and improving the dust removal effect; the polluted air passes through the dust removal system, and after two filter tanks, the three main harmful components contained in the smog can be removed to form a clean air. Harmless gas. The utility model can be used in production and life, and will reduce the impact of haze weather on the environment and health.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the dust removal mechanism of the present invention.

Fig. 2 is a structural schematic diagram of the filter tank of the present invention.

Fig. 3 is a schematic cross-sectional view of the anode of the present invention.

Fig. 4 is a schematic cross-sectional view of the cathode of the present invention.

In the figure: 1-air inlet, 2-filter screen, 3-fan, 4-anode, 5-water injection nozzle, 6-cathode, 7-dust switch, 8-activated carbon filter tank, 9-lime water filter tank, 10 -Sodium hydroxide filter tank, 11-liquid filling port, 12-liquid intake port, 13-base, 14-inlet, 15-feeding port, 16-gas outlet, 17-partition, 18-discharging port.

detailed description

In order to describe the technical content and structural features of the haze treatment system of the utility model in detail, the following will be further described in conjunction with the embodiments and accompanying drawings.

As shown in Figures 1, 2, 3, and 4, the smog treatment system of the present utility model includes a dust removal mechanism, an activated carbon filter tank 8, a filter tank 9 with lime water, and a filter tank 10 with sodium hydroxide; the dust removal mechanism It is mainly composed of air inlet 1, filter screen 2, fan 3, positive electrode (anode) 4, negative electrode (cathode) 6, water injection system, dust discharge switch 7, liquid filling port 11, and liquid intake port 12; the water injection system is mainly composed of The water injection nozzle 5 is close to the upper end of the cathode 6. A total of 8 nozzles are evenly distributed on a circle, and the sewage outlet is located below the cathode 6. All the nozzle control switches and the sewage valve port switches are controlled by the same relay. The cathode 6 is equipped with an inductor, and the water injection system is controlled by PLC; there are two liquid filter tanks, one is a filter tank 9 filled with lime water, and the other is a filter tank 10 filled with concentrated sodium hydroxide solution. The structure comprises base 13, air inlet 14, feed port 15, air outlet 16, dividing plate 17, discharge port 18, separates canister from the middle, is divided into two halves, adopts the form that channel is arranged below.

The system uses water flushing to remove dust accumulated on the cathode 6 .

When the new smog treatment system starts to work, the fan 3 near the air inlet 1 rotates to suck the smog gas from the outside into the dust removal system, and the polluted air passes through the high-voltage electric field in the dust removal system, ionizing the air and carrying a positive charge. Under the action of the electric field, the medium-charged solid particles will move in a directional manner, move to the cathode 6 opposite to their own charge, and be adsorbed on it. By controlling the switch 7, the nozzle 5 near the cathode 6 cleans the particles and dust adsorbed on the cathode 6, and removes them through the exhaust path, so that the content of solid particles in the air is greatly reduced. Under the action of the fan 3, the treated air will continue to move and reach the filter tank 8 equipped with activated carbon, and the particles in the air will be basically cleaned up through the adsorption of the activated carbon. The air continues to move through the filter tank 9 that is equipped with lime water and the filter tank 10 that is equipped with concentrated sodium hydroxide solution to absorb sulfur dioxide and nitrogen oxides in the air respectively, and what is finally discharged from the air outlet is clean air without pollution.

Since the water injection system does not need to work all the time, it only sprays water sparingly. In order not to affect the normal operation of the system, before the water injection nozzle 5 is not opened, the valve port of the sewage outlet is closed, and all the nozzle control switches and the sewage valve port switches are It is controlled by the same relay, and after the water injection nozzle 5 is closed, the blowdown valve must be delayed for a period of time before closing, otherwise it will cause fouling. In order to avoid incomplete purification caused by untimely cleaning of dust, or energy waste caused by premature cleaning time, a sensor is installed on the cathode 6. When the thickness of the solid particles adsorbed on the cathode 6 reaches a certain level, the sensor works, and at the same time The sensor energizes the relay that controls the switch of the sprinkler head, so that the water filling switch is turned on and the water filling system starts to work.

The water injection system is mainly composed of nozzles and sewage outlets. The water injection nozzle 5 is close to the upper end of the cathode 6. There are 8 nozzles evenly distributed on a circle, which can realize flushing of various parts on the cathode 6. The blowdown outlet is located below the cathode 6, and the washed dust flows out through the blowdown outlet. The water injection system adopts PLC control to realize the automation of the water injection system. Two liquid filter tanks, one is the filter tank 9 that lime water is housed, and the other is the filter tank 10 that the sodium hydroxide concentrated solution is housed, makes polluted air contact with liquid as far as possible, separates filter tank from the middle, It is divided into two halves, and the channel is opened at the bottom, so that the solution can fully absorb the harmful substances in the gas. The solid particles in the smog are processed through the dust collector, and the solid particles adsorbed on the cathode 6 in the dust collector are regularly cleaned through the water injection nozzle 5, and the polluted gas after dust removal is further dusted through the filter tank 8 equipped with activated carbon, and then the polluted The gas passes through the filter tank 9 filled with lime water to remove sulfur dioxide, and finally passes through the filter tank 10 filled with concentrated sodium hydroxide solution to treat the nitrogen oxides and unremoved sulfur dioxide, and finally obtain clean air.

When the polluted gas is passed into the filter tank ₉ filled with lime water, the SO2 in the polluted gas will react with the lime water, the reaction is similar to the reaction of _CO2 with lime water, due to the solubility of _SO2 in water It is larger than _CO2 , and the acidity of sulfurous acid is stronger than that of carbonic acid, causing SO2 to make clarified lime water turbid faster _{than CO2} , and the reaction is faster and stronger. And because the amount of SO ₂ in the polluted gas accounts for a small amount, Ca(HSO ₃ ) ₂ (soluble) will not be produced in all reaction processes, so the reaction equation is: SO ₂ +Ca(OH) ₂ =CaSO ₃ +2H ₂ O . After polluted gas comes out from filter tank 9 that lime water is housed, enters in the filter tank 10 that sodium hydroxide concentrated solution is housed, nitrogen oxide in polluted gas can react with the concentrated solution of sodium hydroxide, and its reaction The equation is: 2NaOH + 3NO ₂ = 2NaNO ₃ + NO + H ₂ O, 2NaOH + NO ₂ + NO = 2NaNO ₂ + H ₂ O. Such polluted air passes through the dust removal system. After two filter tanks, the three main harmful components contained in the smog can be removed, and finally clean and pollution-free air can be obtained.

What is disclosed above is only a preferred embodiment of the utility model, but it cannot be used to limit the scope of rights of the utility model, so the equivalent replacements and modifications made by the claims of the utility model still belong to the scope of the utility model range.

Claims (2)

1. a haze processing system, it is characterised in that haze processing system includes dedusting mechanism, activated carbon filtering tank, the filtering tank equipped with lime water, the filtering tank equipped with sodium hydroxide；Dedusting mechanism is mainly made up of air inlet, sieves, blower fan, anode, negative electrode, flood pattern, dust discharge switch, filling opening, liquid taking port；Flood pattern is mainly made up of shower nozzle and sewage draining exit, water filling shower nozzle is near negative electrode upper end, have 8 shower nozzles to be evenly distributed on a circumference, sewage draining exit is positioned at the lower section of negative electrode, all shower nozzles control switch and blowdown valve port switch is by same Control, equipped with induction apparatus on negative electrode, flood pattern uses PLC to control；There are two liquid filtering tanks, one filtering tank being equipped with lime water, also has a filtering tank being equipped with soda lye, the structure of filtering tank includes base, air inlet, charge door, gas outlet, dividing plate, drain hole, from filtering tank spaced intermediate, it is split into two halves, uses the form having passage below.

2. haze processing system as claimed in claim 1, it is characterised in that: described system uses the mode of water punching to remove accumulation dust on negative electrode.