CN112746592A

CN112746592A - Method for eliminating large-range haze safely, quickly and at low cost

Info

Publication number: CN112746592A
Application number: CN202110056701.7A
Authority: CN
Inventors: 郑尔历; 李庆国
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-05-04

Abstract

The invention discloses a method for safely, quickly and inexpensively eliminating haze in a large range, belongs to the technical field of weather modification, and solves the problems of poor safety, high cost and unsatisfactory haze eliminating effect of the conventional method. The invention comprises the following steps: crushing palygorskite mineral material into powder with the fineness of 1000 meshes; loading the obtained palygorskite mineral material powder on a flexible wing unmanned aerial vehicle; charging the palygorskite mineral material powder by using a high-voltage generator to enable the palygorskite mineral material powder to carry static charges; the flexible wing unmanned aerial vehicle is lifted to the top of the haze layer, and palygorskite mineral material powder with electrostatic charges is sowed through the sowing device. The invention avoids the potential safety hazard brought to flying personnel by the air charging mode of the existing method, and ensures the safety of personnel; the comprehensive cost of the invention is reduced by at least 90 percent; the present invention eliminates haze more quickly than prior methods.

Description

Method for eliminating large-range haze safely, quickly and at low cost

Technical Field

The invention belongs to the technical field of weather modification, and particularly relates to a method for safely and quickly eliminating a large-range haze at low cost.

Background

Aiming at the severe haze weather at present, the solutions proposed at present in the technical circles at home and abroad are long-term solutions, such as: it is undoubtedly true that plants which remove a large amount of coal as fuel, including coal-fired power plants, heating thermal power plants, steel plants, coking plants, etc., use natural gas instead of coal for winter heating and power generation, so-called "coal-to-gas", vigorously advocate planting trees and grasses, advocate various aspects of energy saving and emission reduction, but this is not always successful.

The main energy in China at present is coal, natural gas is used for replacing coal, and the coal looks beautiful, but the natural gas is not forbidden to be used for a lot of doubts through calculation with a large probability, such as: the calorific value of 1 kilogram of standard coal is 7000 kilocalories, the calorific value of 1 cubic meter of natural gas is 8400 kilocalories, and the converted 1000 cubic meters of natural gas is about 1.2 tons of standard coal. According to the data of the previous year, the carbon amount of coal for heating in winter in the north of China is about 4 hundred million tons, so that natural gas of about 3300 billion cubic meters is needed to replace the coal, the huge amount of natural gas is also only needed for heating, if most coal-fired factories are reformed by coal gas change, the required amount of natural gas is larger, the large amount of natural gas is searched, whether the large amount of natural gas can ensure stable supply for a long time or not is solved, the biggest problem which is difficult to overcome is that the realization time of the long-term scheme is too long, the most difficult is that people do not learn a method and experience for controlling haze of English people in 50 years, the method for controlling haze for a long time is used for reference of 'London smoke events' in 50 years in the United kingdom, and the United kingdom people are finally controlled for more than 50 years, however, the method is not practical for China at present, takes too long time and is not used at high cost.

Some people also propose to use the traditional artificial rainfall method to treat the haze, however, the central weather station chief forecaster horse-drawn expert indicates that the haze is eliminated through the artificial rainfall, which is neither economical nor practical, because the artificial rainfall must have certain conditions, namely, a certain rain accumulation cloud layer, and just above the haze area. It is also not practical to spray water because it is not available, it is not possible to spray water with excessive amount of water to the upper part of the haze layer at low cost, the water is used to remove haze, the water is not well controlled to turn into haze droplets and rather aggravate haze, and it is only now sprayed on the ground in large amount, which is not effective basically, and the road surface is easily frozen by spraying water too much in winter, so that the water spraying method is not practical to remove haze.

The non-metallic mineral material powder with positive and negative charges is scattered by an aircraft in a patent of a method for eliminating large-range haze (patent number: ZL 201310715102.7), the method is poor in safety, the non-metallic mineral material powder is charged in the operation process of the aircraft, certain potential safety hazards are caused to pilots, the operation cost is high, the method is nearly ten times that of the method, and the speed for eliminating the haze is also lower than that of the method.

Disclosure of Invention

The invention aims to provide a method for safely, quickly and inexpensively eliminating a large-range haze, and solves the problems of poor safety, high cost and unsatisfactory haze eliminating effect of the conventional method.

The technical scheme of the invention is as follows: a method for eliminating a large range of haze safely, quickly and at low cost comprises the following steps:

A. crushing palygorskite mineral material into powder with the fineness of 1000 meshes;

B. loading the palygorskite mineral material powder obtained in the step A on a flexible wing unmanned aerial vehicle;

C. charging the palygorskite mineral material powder by using a high-voltage generator to enable the palygorskite mineral material powder to carry static charges;

D. the flexible wing unmanned aerial vehicle is lifted to the top of the haze layer, and palygorskite mineral material powder with electrostatic charges is sowed through the sowing device.

As a further improvement of the invention, in the step B, the charging voltage of the high voltage generator is 20-30 ten thousand volts.

As a further improvement of the present invention, in step B, the high voltage generator uses CX1540A plasma high voltage power supply to generate high voltage power in the range of 4KV-300KV (4 KV-30 ten thousand volts, adjustable), and when in use, according to the field conditions, such as: and carrying out corresponding voltage regulation on the haze severity, the haze height and the like.

As a further improvement of the present invention, in step a, the palygorskite mineral material is palygorskite ore stored in the high bay county of jingyun county, silver city, kansu province.

After the ultrafine particulate matters within the PM2.5 range in the haze layer are scattered, the adsorption and coagulation phenomena can be quickly generated under the electrostatic adsorption effect of the charged palygorskite mineral material powder, the ultrafine particulate matters (the root pollutants of haze) of PM2.5 can be quickly adsorbed into particulate matters larger than PM10 to ensure that the air is transparent, the haze can be quickly eliminated, meanwhile, various toxic and harmful gases in the air can be adsorbed, the harmful substances are separated from the air, the atmosphere becomes more transparent and clean, the ultrafine particulate matters within the PM2.5 range harmful to the human body can not be formed, and the human health is effectively protected.

The invention has the beneficial effects that:

1. the invention uses the flexible wing unmanned aerial vehicle, and does not use the airplane driven by the pilot and other aircrafts, thereby fundamentally avoiding the possible casualties and the loss risks of expensive airplanes which may be crashed in the haze treatment work, and achieving the absolute guarantee of the personal safety and the safety of the aircrafts. The speed of the flexible wing unmanned aircraft is much slower than that of a common aircraft (the flight speed is 50-60 km/h), even if accidents occur in the work, such as: when the engine is flamed out, the flexible wing unmanned aerial vehicle can be changed into a parafoil parachute, can safely land automatically or manually, cannot damage the equipment and objects on the ground, can be absolutely safe during the whole-process work, takes off, spreads, lands and has accidents, potential safety hazards brought to flying personnel by the air charging mode of the existing method are avoided, and personnel safety is ensured.

2. The flexible wing unmanned aerial vehicle has the characteristics of simple structure, low manufacturing cost, large load and high flying height (the maximum can reach 700 kilograms, the flying height can reach 5000 meters), the flying distance is extremely short, the flexible wing unmanned aerial vehicle can fly off and land at a distance of 50 meters, the flexible wing unmanned aerial vehicle does not need to depend on a large airport, and the flexible wing unmanned aerial vehicle can be normally used on ordinary roads, roads and even flat lands, so the flexible wing unmanned aerial vehicle has extremely low use cost and extremely convenient use mode, 2-3 people can complete tasks, and the flexible wing unmanned aerial vehicle is particularly easy to popularize, and compared with the prior art, namely a method for eliminating haze in a large range, the flexible wing unmanned aerial vehicle greatly reduces the cost, and.

3. The invention specifies that the palygorskite mineral material is crushed into 1000-mesh-fineness powder to be sowed in the air, and through a plurality of tests, the effect of removing haze by the palygorskite mineral material powder with 1000-mesh-fineness is the best, the haze can be rapidly removed, the effect can be obviously seen after the palygorskite mineral material powder is sowed for a latter half hour, particularly, the palygorskite material has large storage capacity (accounting for 79 percent of the worldwide proven storage capacity), is easy to exploit and low in cost, the price of original ore in situ is only 200 yuan/ton at present, and the aims of low cost and rapid removal of the haze in a large range can be fulfilled. In the invention, the palygorskite mineral material is palygorskite ore stored in the high bay county of Jingyuan county of Baiyin City, Gansu province, the palygorskite mineral material in the producing area is safe and non-toxic (edible), and no subsequent safety problem can be caused after the powder is reduced.

4. The high-voltage charging voltage range adopted by the invention is 200-300KV (20-30V), which is 10 times of the voltage adopted in the method for eliminating the large-range haze in the prior art, the voltage of the charged palygorskite mineral material powder is increased, the charge adsorption and coagulation speed can be greatly increased, the basic condition for quickly eliminating the haze is also realized, and the haze can be eliminated more quickly than the haze in the prior art.

Drawings

FIG. 1 is a graph of air quality measurements before and after haze removal in an embodiment.

Detailed Description

The present invention will be described in detail with reference to specific embodiments.

Examples 1,

In a Xinjiang rock river area at 28 days 12 and 12 months in 2020, the local weather pollution degree is 315 in a severe haze day PM2.5, the visibility is extremely poor, an anti-fog lamp needs to be turned on when a highway is restricted and an automobile runs very slowly, pedestrians wear a mask, and feel choked when breathing. In the day, the temperature is sixteen degrees below zero, and the wind power is one level higher than that of the south wind.

The haze eliminating operation is carried out by using the method, and the operation time is as follows: fifty minutes for sixteen tenths to seventeen tenths. The operation process comprises the following steps:

A. pulverizing palygorskite mineral material (palygorskite ore stored in high bay county of Jingyuan county, Baiyin, Gansu province) into powder of 1000 meshes;

B. b, arranging a palygorskite loading bin in the flexible wing unmanned aerial vehicle, and adding 300 kg of palygorskite mineral material powder obtained in the step A into the bin;

C. charging the palygorskite mineral material powder by using a high-voltage generator (CX 1540A plasma high-voltage power supply), so that the palygorskite mineral material powder is charged with static charges (both positive and negative charges), the charging voltage is 250KV (25 ten thousand volts), and the charging is stopped after 30 minutes;

D. 16:10, taking off the flexible wing unmanned aerial vehicle loaded with the palygorskite mineral material powder with electrostatic charges, manually controlling and adjusting the flexible wing unmanned aerial vehicle to reach the height of 500 plus 600 meters after 15 minutes, wherein the height of the flexible wing unmanned aerial vehicle is up to the height of 500 plus 600 meters after the flexible wing unmanned aerial vehicle is arranged on the top of a haze layer, a blue sky with bright sun and high illumination is arranged above the flexible wing unmanned aerial vehicle, a city covered by severe haze is arranged below the flexible wing unmanned aerial vehicle, the palygorskite mineral material powder with electrostatic charges is scattered through a scattering device (controlled by a remote control switch, the type of the remote control switch is a four-way high-power wireless receiving controller), the speed per hour is.

After the seeding is finished, the seeding device is closed, and the flexible wing unmanned aerial vehicle lands and returns to the ground. And if the palygorskite powder needs to be sowed for multiple times, continuously loading the palygorskite powder, and repeating the steps. And sowing once or for many times according to the severe haze condition.

The sowing is started from ten times of sixteen to be stopped from seventeen times, the PM2.5 is reduced from 315 (heavy pollution) to 142 (good) when the pollution peak value is reduced to twenty-nine days and six days; PM10 goes from 398 to 161; NO₂The reduction from 85 to 42 is very large. No pollution peak appears in the three-to-four time period of twenty-nine days, which indicates that the pollution value is continuously reduced. The specific measurement data is shown in FIG. 1, which is intercepted from the mobile phone APP gridding accurate monitoringAnd the data of the measuring platform comes from the river meteorological bureau and is networked with the central meteorological bureau, so that the measuring platform is real and effective.

The method for eliminating the large-range haze safely, quickly and at low cost can be used in occasions requiring a large amount of treated smoke and dust particles or a large amount of discharged harmful gases, such as: the invention is used in the smoke tube of coal-fired power plant, the discharge of coking plant, the straw combustion, the discharge of garbage incineration plant, etc. the invention is used in these places without using the flexible wing unmanned aerial vehicle. Only need erect a pylon, from the pylon to the within range spraying that needs to handle can, like this, can handle and eliminate including gas, particulate matter etc. the produced pollutant of these pollution sources at the source, make it subside to ground in 1 ~ 2 kilometers within range is automatic, administer from the source, its emission reduction, the meaning of eliminating the haze is bigger.

Claims

1. A method for eliminating a large range of haze safely, quickly and at low cost is characterized by comprising the following steps:

2. A safe, rapid, low-cost method of eliminating a wide range of haze as claimed in claim 1, characterized in that: in step B, the charging voltage of the high voltage generator is 20-30 ten thousand volts.

3. A safe, fast and low cost method of eliminating a wide range of haze as claimed in claim 2 wherein: in step B, the high voltage generator employs a CX1540A plasma high voltage power supply.

4. A safe, rapid, low-cost method of eliminating a wide range of haze according to any of claims 1-3, characterized by: in step a, the palygorskite mineral material is palygorskite ore stored in the region of gaozun Jing Gaiz county, Gansu province.