Sunday, May 23, 2021

Hydraulic water well drilling rig introduction

YG-300 hydraulic water well drilling rig

In this article, we take YG-300 hydraulic water well drilling rig from YG Machinery as an example to introduce. YG-300 water well drilling rig is a fully hydraulic drive, power-head drilling rig. It is mainly suitable for the construction of water well drilling rigs and geothermal hole construction. It is also suitable for the construction of large-diameter vertical holes or unloading holes in geotechnical engineering such as hydropower stations, railways, highways, and urban foundations; grouting reinforcement holes; small foundation pile holes; Micro piles and so on. The drilling rig uses a variety of techniques, such as conventional down-the-hole hammer drilling, long auger drilling, mud circulation drilling, follow-up drilling, roller cone drilling, hydraulic hammer drilling, etc. If you want to know more, please click here for more details.



Main feature

● The drilling rig has strong drilling capability, a wide application range, fast drilling speed, strong accident handling ability, and high drilling efficiency.

● The powerhead of the drilling rig can be changed mechanically/hydraulically. Suitable for various drilling methods such as down-the-hole hammer, follow-up pipe, full set of pipe rapid alloy rotation, etc.

● The main shaft adopts a telescopic mechanism, which can effectively protect the drilling tool; the powerhead and the orifice can be reversed to obtain a larger drilling angle.

● The drilling rig is equipped with hydraulic clamping and shackle device or pipe screwing machine, automatic shackle, reducing auxiliary time and labor intensity.

● The drilling rig is mounted on the crawler chassis, which makes the whole machine shift and walk faster and more convenient.

● The main components of the hydraulic system of the drilling rig are made of domestic and foreign famous products so that the performance of the whole machine is stable and reliable, and the service life is long.

● The YG water well drilling machine can be applied to a variety of drilling process methods.

● Spiral drilling without circulating fluid, air down-the-hole hammer drilling, mud positive circulation full-pipe drilling, air down-the-hole hammer and tube drilling, roller cone drilling, etc. There is YG official website you can check if you are ready to contact them.



Technical Parameters

Drilling depth(m)

300~500

Drill rod(mm)

Ф89-3000/6000,Ф114×3000/6000

Drilling diameter(mm)

Ф160/300-400

Powerhead output speed(rpm)

35/71(Low-end)、57/114(High-end)

Powerhead output torque(Nm)

10000N.M

Powerhead stroke(mm)

3500/7000mm

Powerhead pull force(kN)

160

Powerhead feed force(kN)

100

Mast slip stroke(mm)

3500/7000mm

Gradeability(°)

20

Diesel engine ZN485Q power(kW)

125kW

Rig outline size (transportation state)(mm)

About 11500×2200×3300

Drilling rig outline size (working state)(mm)

5450×2200×12000

Weight(kg)

About11000

Through-hole diameter(mm)

370



Monday, May 17, 2021

What are the standards for oxygen generators?

The national standards for medical oxygen concentrators include power failure, temperature, low oxygen concentration alarm, noise, oxygen concentration, output pressure (flow rate), continuous working capacity, indicator light, air tightness, etc. The following picture shows an oxygen concentrator's Technical Parameters. As an ordinary consumer, the most commonly viewed standards are flow rate and household oxygen concentration, because compressors and molecular sieves are the core of oxygen production flow and oxygen concentration, and they are also the most expensive parts of manufacturers.

The working principle of the oxygen generator

The oxygen generator for home use adopts the adsorption performance of molecular sieve, through physical principle, uses oil-free compressor as the power to separate nitrogen and oxygen in the air, and finally obtain high-concentration oxygen.

Oxygen generator accessories

The core hardware of the oxygen generator includes a compressor, molecular sieve, four-way valve, filter, heat dissipation, and silencer system.

The quality of the compressor determines the continuous working ability of the oxygen generator. The molecular sieve determines the oxygen production efficiency of the oxygen generator. The four-way valve is a nitrogen and oxygen exchanger. The filter is divided into 1-3 levels to remove impurities. A good radiator is conducive to the life of the machine. The muffler system determines the level of noise.

Compressor: determines the continuous operation performance of the oxygen generator

The more well-known international brands of compressors include American brand Thomas and Italian Natuzzi. Imported oxygen generators generally use American Thomas compressors, which have the advantages of long life and good heat dissipation. The well-known domestic compressors include Guangshun, Shengyao, and Yuqi. Among them, Guangshun is used for high-end compressors. Many low-cost oxygen generators for sale mostly use unknown compressors for the purpose of compressing costs. The disadvantage is that the noise will increase after the machine is used for a long time.

Molecular sieves

Determine the efficiency and purity of oxygen production. French lithium-based molecular sieves and American molecular sieves are mainly on the market. Speaking of the difference between the two molecular sieves, the conversion efficiency of the American sodium sieve is not as good as that of the lithium sieve, but it is stable.

The French lithium sieve produces oxygen quickly, but it is easy to get damp and the molecular sieve fails. French lithium molecular sieve is commonly used in the market. Therefore, it is recommended that the oxygen generator should be ventilated and dry and run regularly to prevent the molecular sieve from being damp and causing the oxygen concentration to fail medical standards. It is best to use a third-party testing instrument to test on a regular basis, and the inside of the machine may not be accurate.

How much molecular sieve is filled determines the ability to continuously supply oxygen. The molecular sieve will wear out during operation. If the filling technology is not tight, the oxygen concentration will decrease after the machine is used for 1-2 years. Some machines have no alarm function, which is difficult for ordinary consumers.


Four-way valve function

There are a total of 4 holes, connecting molecular sieve, compressor, cooling copper pipe, exhaust pipe. The role is to retain oxygen, eliminate nitrogen, and maintain the continuous oxygen supply of the machine. If your machine is turned on and the compressor can operate normally, but the molecular sieve does not work (alternating sound), it is likely that the four-way valve is damaged.

Filter: Divided into 1-3 level filters

The first stage is a washable sponge body with relatively large holes, which plays a role of the primary filtering of air impurities.

The second level is the filter core paper with higher density, with smaller holes, which can filter the smaller impurities in the air.

The third stage is the oxygen outlet filter, which is fixed inside the machine and cannot be replaced by ordinary consumers. As long as the first and second stages are well maintained, the third stage is within the life of the YG company oxygen generator and does not need to be maintained.


Tuesday, May 11, 2021

Pressure swing adsorption oxygen production equipment

Process principled

Pressure swing adsorption oxygen production equipment (also known as PSA oxygen production equipment) uses PSA special molecular sieve to selectively adsorb impurities such as nitrogen, carbon dioxide, and water in the air under normal temperature and pressure conditions to obtain higher purity oxygen (93 %±2).

Since the pressure swing adsorption oxygen production equipment entered industrialization, the technology has developed rapidly. Because of its price-performance ratio in the low-to-medium output range and the occasions where the purity requirements are not high, it has strong competitiveness, so it is widely used in steel-making fluxing. , Blast furnace oxygen enrichment, pulp bleaching, glass furnace, wastewater treatment, and other fields.

Domestic research on this technology started earlier, but the development has been relatively slow for a long period of time. Since entering the 1990s, the superiority of PSA oxygen generation equipment has been gradually recognized by the Chinese people. In recent years, various process equipment has been put into production one after another. Click here to learn about small oxygen generators for home use.


Process Description

The oxygen production system is mainly composed of an air compressor, air cooler, an air buffer tank, a switching valve, an adsorber and an oxygen balance tank. After the raw material air passes through the suction port filter to remove the dust particles, it is pressurized to 3~4barg by the air compressor and enters one of the adsorbers.

The adsorber is filled with adsorbent, in which moisture, carbon dioxide, and a small number of other gas components are adsorbed by the activated alumina at the bottom of the adsorber, and then nitrogen is adsorbed by the zeolite molecular sieve filled on the upper part of the activated alumina.

The oxygen (including argon) is a non-adsorbed component and is discharged from the top outlet of the adsorber as product gas to the oxygen balance tank. When the adsorber is adsorbed to a certain level, the adsorbent in it will reach saturation. At this time, the adsorbent is vented through the switching valve, and the adsorbed water, carbon dioxide, nitrogen, and a small number of other gas components are discharged to the atmosphere, and the adsorbent is regenerated.

Each adsorber of PSA performs the following steps alternately:
---Adsorption---Desorption---Stamping
The above three basic process steps are automatically controlled by PLC and switching valve system.


Application field

Metallurgical electric arc furnace steelmaking, blast furnace iron making and oxygen enrichment, shaft furnace oxygen-enriched combustion, non-ferrous smelting industry, lead smelting, copper smelting, zinc smelting, aluminum smelting, various furnaces, oxygen-enriching environmental protection industry drinking water treatment, wastewater treatment, pulp bleaching, Waste biochemical treatment, various oxidation reactions in the chemical industry, ozone production, coal gasification and other industrial fermentation, cutting, glass furnaces, air conditioners, garbage incineration, oxygen inhalation bars in the medical industry, oxygen therapy, sports health care, aquaculture, freshwater aquaculture.


PSA oxygen generator features

1. The unit is simple, and the moving equipment is only an air compressor and a cooler. 2. The requirement for molecular sieve is relatively low, and with the same oxygen production equipment, the molecular sieve consumption is small. 3. The equipment is small in size, so its cost is relatively low. 4. The requirements for the degree of automation of the entire equipment are relatively low. The air compressor, freeze dryer/condenser can be started and stopped separately from the oxygen generator or can be linked to control.


Monday, May 10, 2021

Short supply of disposable protective gloves

Due to the outbreak of the epidemic this year, the demand for disposable protective gloves on the market has also increased sharply. As a disposable glove manufacturer, we have high-quality and low-cost disposable gloves for everyone to choose from. Disposable gloves can be divided into nitrile gloves, PVC gloves and latex gloves according to their materials. Next, briefly talk about their differences, uses, and materials. Summers WhatsApp: +86 138 3856 5351

The raw material is different

1. Nitrile gloves: The material is NBR, a synthetic rubber, and the main components are acrylonitrile and butadiene;

2. PVC gloves: the material is polyvinyl chloride;

3. Latex gloves: The material is natural latex (NR).



The characteristics are different

1. Nitrile gloves: Nitrile inspection gloves can be worn on both hands, made of 100% nitrile latex, no protein, effectively avoiding protein allergies; the main performance is puncture resistance, oil resistance and solvent resistance; hemp-like surface treatment, avoid It is easy to wear after the powder-free treatment, and effectively avoids skin allergies caused by powder.

2. PVC gloves: resistant to weak acid and weak alkali; low ion content; good flexibility and touch; suitable for semiconductor, liquid crystal and hard disk production processes.

3. Latex gloves: latex gloves have abrasion resistance, puncture resistance; resistance to acids and alkalis, grease, fuel and a variety of solvents, etc.; have a wide range of chemical resistance, good oil resistance; latex gloves feature unique fingertip texture design , It greatly enhances the grip and effectively prevents slippage.



different uses

1. Nitrile gloves mainly used in medical, pharmaceutical, sanitation, beauty salon and food processing industries. Nitrile gloves can be divided into two types: powder-free and powder-free. The length of nitrile gloves is 23cm and 30cm; the thickness is 0.08~0.09mm, and the color is mainly blue. The main product packaging is 100pcs per box, and the specifications are XS, S, M, L, XL.

2. PVC gloves: suitable for clean rooms, hard disk manufacturing, precision optics, optical electronics, LCD/DVD liquid crystal manufacturing, biomedicine, precision instruments, PCB printing and other industries. It is widely used in labor protection and household hygiene in hygiene inspection, food industry, chemical industry, electronics industry, pharmaceutical industry, paint and coating industry, printing and dyeing industry, agriculture, forestry, animal husbandry and other industries.

3. Latex gloves: can be used as household, industrial, medical, beauty and other industries. It is suitable for automobile latex gloves manufacturing, battery manufacturing; glass fiber reinforced plastic industry, aircraft assembly; aerospace field; environmental cleaning and cleaning.



In order to prevent the gloves from slipping and improve the comfort of use, the palms of the cut-resistant gloves are dipped. According to the different dipping gels, they are divided into three types: latex, nitrile and polyurethane. Among them, polyurethane gloves have a thinner gel, which is generally used in gardening and electronic industries with relatively high sensitivity requirements; latex gloves and nitrile gloves have relatively thick gels, latex gloves have better anti-slip performance, and nitrile gloves have better oil stain resistance. Used in mechanical processing, logistics handling, oil depot operations, etc.

Tuesday, May 4, 2021

Work overtime to produce epidemic prevention product for India

 During International Labor Day, the epidemic in India has continued to worsen. Countries around the world are paying close attention to the epidemic in India. In particular, as a close neighbor, China has been doing its utmost to support India. Chinese oxygen generator manufacturers work overtime on Labor Day to produce oxygen generators and ship them to India.

Sun Weidong, the Chinese ambassador to India, said that employees of a Chinese manufacturer of oxygen concentrators worked overtime during the May 1st holiday to produce and pack machines for shipment to India. Sun Weidong posted on Twitter the day before yesterday (May 2) that the batch of oxygen generators will be shipped to India soon. He also attached a video of employees packing the oxygen concentrator machines to the tweet.

China provides help to India

Since this round of the epidemic in India worsened, China's attitude towards the epidemic in India has attracted considerable attention. Chinese President Xi Jinping sent a message of condolences to Indian Prime Minister Modi last Friday, expressing his willingness to strengthen cooperation with India in the fight against the epidemic and provide support and assistance to the Indian side. On the same day, Chinese Foreign Minister Wang Yi also had a phone conversation with Indian Foreign Minister Su Jaishan, saying that he would provide assistance to India. As the ambassador to India, Sun Weidong has also frequently posted messages on Chinas support for India on social media in recent days.

In an interview with the Global Times last Friday, Sun Weidong said that China was one of the first countries to offer support and assistance to India and one of the first countries to put actual actions into practice. He also said that many Chinese companies and non-governmental organizations are providing various assistance to India in their own way. Sun Weidong also said that relevant domestic Chinese companies are stepping up the production of orders for at least 40,000 oxygen concentrators submitted by India, and strive to deliver the necessary medical supplies to India as soon as possible.

Emergency production oxygen generator

Sun Weidong said that China will continue to encourage and support Chinese enterprises to accelerate the production and provision of anti-epidemic materials, provide customs clearance and transportation convenience for India's purchase of anti-epidemic materials, and organize anti-epidemic exchanges between health and epidemic prevention experts of the two countries to share the anti-epidemic experience. The next day, he wrote on Twitter that there were 61 cargo flights from China to India in the past two weeks, delivering all kinds of urgently needed medical supplies to India.

In addition, the Chinese Embassy in Sri Lanka announced on Twitter on the 26th of last month that China has airlifted 800 oxygen generators to India and will provide India with an additional 10,000 medical use oxygen generators within a week. The epidemic situation in India continues to worsen, and the spread of the virus is still rapid. According to a Reuters report yesterday, India has had more than 300,000 new cases per day for 12 consecutive days. For Chinas support, Jaishan Su expressed his gratitude during the call with Wang Yi.

As a leading manufacturer of oxygen generators in China, YG company has also been working overtime to produce oxygen generators. I hope that people in India and all over the world will stay away from the new crown epidemic as soon as possible.