Electric Sprayer

Sprayer is short for spray equipment. The sprayer is an appliance that uses air suction to turn medicines or other liquids into mist and spray them evenly on other objects. It is composed of a compressed air device, a thin tube, and a nozzle.

Development History

In rural areas, sprayers are important agricultural tools indispensable for the prevention and control of pests and diseases.

In the collective era of the last century, farmers planted a single land. The last crop of wheat or rape, the middle and the next crop were mostly rice. The cash crops may be cotton and soybeans, except for melons. The sprayer at that time was a cylinder with a height of 80 cm and a diameter of about 25 cm. When spraying the medicine, put it on the ground for full air, then put your back behind, wait until the gas is exhausted, the mist surface of the liquid medicine becomes smaller, then put it on the ground for full air, and then lift up... and so on. It takes time and effort, and can't take a few buckets of medicine for a long time.

In the early 1980s, the right to contract land was in the hands of farmers, and the farm tools used in large collectives were also distributed to households at a discount. At that time, most of the two or three households were cooperating to get a sprayer, and one household only owned 1/3-1/2. When spraying pesticides to cure insects, two or three farmers took turns to make do with it.

Slowly, farmers began to scientifically manage their own contracted land, which has higher grain yields, sweeter than watermelons, and more money than cotton. As a result, two or three companies can use a sprayer together. Insect pests occur at the same time, so it is said that all sprays are sprayed, otherwise the best treatment time will be delayed.

In this way, since 1986, most people spent 25-30 yuan to buy a new knapsack sprayer, which has become the "first" sprayer completely belonging to their own family. This kind of sprayer overcomes the insufficiency of spraying to stop pumping up in the past. It can already be back behind, with one hand to press the air, and the other hand to hold the "smoke rod" to spray, without delay. The summer weather was extremely hot, and a bucket of potion was on his back, feeling a bit of coolness. So comfortable!

With the continuous increase in the area of multiple cropping and the increasing number of pests and diseases each year, the number of sprays has also increased; especially for large-scale farmers with more than 20 acres, such a sprayer is no longer suitable for reality. Since 1994, some farmers and big growers who are busy working as a part-time worker have spent nearly a thousand yuan on the third-generation sprayer, which is also the first-generation motorized sprayer.

Spraying with a motorized sprayer not only improves production efficiency and reduces labor intensity, it takes only an hour for five or six acres of grain to grow crops, and the wind, mist, and liquid medicine can spray four or five meters away. ! Behind his back, the machine roared, urging to move forward quickly, like a passionate production concerto. More spirit!

In the new century, peasants, inspired by the party's policies, are enjoying the convenience brought by scientific and technological achievements. As the main agricultural implement sprayer for the prevention and control of plant diseases and insect pests, it has become the obsolete object of social development due to loud noise, smoking and environmental pollution. Since 2007, a new type of energy-saving and environmentally friendly electric sprayer has quietly entered the homes of ordinary people.

This sprayer can be said to be convenient, energy-saving, plastic shell, lightweight and corrosion-resistant, and its efficiency is not worse than that of a motorized sprayer. No oil, no noise, with his back behind, pressing the switch, a huge fan of liquid medicine sprayed towards the target. How cool!

Nowadays, the fourth-generation sprayer, together with the stretcher sprayer, also plays the main role of "unified defense and rule" everywhere!

Agricultural classification

Take several mainstream varieties of the most widely used agricultural knapsack sprayer, and make a simple comparison of advantages and disadvantages for the reference of farmers when purchasing. 1. Ordinary hand sprayer:

Advantages: 1. Low price. 2. Easy maintenance and low price of accessories.

Disadvantages: 1. Low efficiency and high labor intensity are not suitable for large-scale operations. 2. The liquid medicine may run, leak, leak, and drip, and the body of the operator is likely to be wetted by the liquid medicine, which is easy to be poisoned and not environmentally friendly. 3. The high maintenance rate is too troublesome.

2. High-pressure automatic sprayer:

Advantages: 1. High efficiency (up to 3 to 4 times that of ordinary hand sprayers), low labor intensity, and continuous operation.

2. Few wearing parts have the lowest maintenance rate and basically no use cost. 3. The atomization reaches or exceeds the electric sprayer, and the direct spray range reaches 7 to 11 meters.

Disadvantages: 1. The sprayer needs to take about two minutes to press the syrup into the sprayer before it can be sprayed.

2. The method of use is different from other sprayers, and you must read the instructions to use them well.

3. Electric sprayer:

Advantages: 1. High efficiency (up to 3 to 4 times that of ordinary hand sprayers), low labor intensity, and easy to use.

2. It gives a good first impression and is easy to sell

Disadvantages: 1. The capacity of the battery determines the length of continuous operation time of the sprayer.

2. Too many brands and models, different parts are not universal, and maintenance is not easy, and the repair cost is too high. The battery will be after the warranty period

Almost, it costs more than 100 yuan to change it, and the pump is also prone to faults and it is not easy to repair.

3. As it involves some electrical appliances, it must be repaired by professionals.

Four, motorized sprayer

Advantages: 1. High working efficiency and good spray effect.

Disadvantages: 1. The purchase price of the machine is high, the use cost is high, and each barrel of water costs a few cents to a dollar.

2. Heavy weight, high noise, large pollution, high temperature of the machine, and poor operating environment of the machine hand.

3. Professional maintenance is required.

skills

Knapsack sprayer use

1. To install the sprayer parts correctly. Check whether each connection is leaking. When using, install clean water and test spray first, and then install the medicine.

2. In formal use, you must add the medicine first and then the water, and the liquid level of the medicine should not exceed the safe water level. Before spraying, move the rocker more than 10 times to increase the air pressure in the barrel to the working pressure. Do not use excessive force when turning the joystick to avoid explosion of the air chamber.

3. When the chemical liquid is first filled, since the air chamber and the spray bar contain clear water, the concentration of the chemical liquid sprayed during the first 2 to 3 minutes of spraying is low, so pay attention to the supplementary spray to avoid affecting the control effect of pests and diseases.

4. After the work is completed, you should pour out the remaining liquid medicine in the bucket in time, wash it with clean water, and pour it out. At the same time, check whether there is water in the air chamber. If there is water, remove the water connector to release the water.

5. If the sprayer is not to be used for a short period of time, the main parts should be cleaned, wiped dry and installed, and stored in a cool and dry place. If it is not used for a long time, grease all metal parts to prevent rust.

Common faults and troubleshooting methods in use:

Insufficient spray pressure and poor atomization: If the water inlet ball valve is set up by dirt, you can remove the water inlet valve and clean the dirt with a cloth; if the cup is damaged, you can replace it with a new one; if the connection part is not installed The sealing ring, or the air leakage due to the damage of the sealing ring, can be installed or replaced.

No fogging: If the oblique hole of the nozzle body is blocked by dirt, the oblique hole can be cleared; if the nozzle is blocked, the nozzle can be disassembled and cleaned, but hard objects such as iron wire or copper needle can not be used to poke the nozzle to prevent the hole from expanding , Make the spray quality worse; if the filter screen in the casing is blocked or the water valve ball is set up, the filter screen should be cleaned and the dirt that has set up the ball should be cleaned.

The switch leaks or cannot be screwed: if the switch cap is not tightened, the switch cap should be tightened; if the gasket on the switch core is worn out, the gasket should be replaced; the switch cannot be screwed because it has been placed for a long time or used for a long time, the switch The core is stuck due to the erosion of the agent, the parts should be removed and cleaned in kerosene or diesel; if it is difficult to remove, it can be soaked in kerosene for a period of time, and then it can be removed after disassembly. Do not hit with hard objects.

Water leakage in each connection: if the joint is loose, the nut should be tightened; if the washer is not flat or damaged, the washer should be leveled, or the washer should be replaced; if the washer shrinks and hardens, it can be soaked in animal oil before use .