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Oxygen breathing apparatus

氧气呼吸器

Oxygen breathing apparatus

Oxygen respirators are a new generation of products for personal respiratory protection. In the case of isolation from the outside world, it can ensure that the supply of oxygen and human vital capacity are completely matched. It has the characteristics of unobstructed air circulation, stable and adequate air supply, timely replenishment, and comfortable wearing. It has small breathing resistance and small weight and volume. , Long protection time, high stability and reliability, simple structure, very convenient for disassembly and maintenance

Oxygen respirator is a device for personal breathing protection used by mine rescuers during rescue work. It is used to protect the respiratory organs of mine ambulance members from toxic and harmful gases when they are engaged in ambulance work. It is safe, reliable, comfortable and easy to use. There are two specifications of 2 hours and 4 hours, namely HYZ2 / HYZ4. This product fully absorbs the advantages of similar products at home and abroad and combines the actual situation of China's ambulance team. The product structure design highlights the advantages of small size, light weight, reliable performance, comfortable wearing, convenient use and maintenance, etc., and the technology has reached the leading position. Level. Therefore, it is more suitable for the actual use needs of the ambulance team in underground, roadway, and narrow environments, and can be operated in any toxic and hypoxic environment and danger area.


Serial number model Breathing volume Expiratory resistance Inhalation resistance Dosing oxygen Automatic oxygen supply Automatic supply valve opening pressure Oxygen concentration in inspiration
1 Positive pressure oxygen respirator 30L / min ≤600Pa > 0 1.6 ± 0.1L / min > 100L / min 50-245Pa > 21%
2 HYZ-2 positive pressure oxygen respirator 30L / min 0 ~ 600Pa ≤700Pa 1.4 ~ 1.7L / min ≥80L / min 10 ~ 245Pa > 21%
3 HYZ-4 positive pressure oxygen respirator 30L / min 0 ~ 600Pa ≤700Pa 1.4 ~ 1.7L / min ≥80L / min 10 ~ 245Pa > 21%

Air respirator

空气呼吸器

Air respirator

The double bottle air respirator is a positive pressure air respirator that protects the respiratory system during emergency rescue. It is equipped with two 6.8L 30Mpa carbon fiber air bottles, which has the characteristics of long air supply time.

model RHZKF9 / 30 air respirator RHZKF6.8 / 30 air respirator Double bottle air respirator
Volume 9L 6.8L 6.8 * 2L
Working pressure 30MPa 30Mpa ≤30MPa
Alarm pressure --- 5.5 ± 0.5Mpa 5.5MPa
weight 4Kg 10kg 11.9kg
time 90min 60min 136min

Chemical oxygen self-rescuer

化学氧自救器

Chemical oxygen self-rescuer

Chemical oxygen self-rescuer is used in various toxic gases and hypoxic environments. It is used for personal self-rescue. When natural disasters such as gas, coal dust explosion, fire, etc. occur in the mining site of a coal mine, it is used as an escape self-rescue instrument for employees. At the same time, it should be noted that the chemical oxygen self-rescuer is a self-rescue device of the self-generated oxygen recording breathing system. The oxygen required by the wearer to breathe is supplied by the province, and is isolated from the outside air.

Chemical oxygen self-rescuer wearing steps

Pull the red handle until the seal is broken, the entire sealing strip comes off, and the upper case is opened and thrown away.
⑵ Unplug the oxygen candle start pin, the oxygen candle starts oxygen generation, and arranges the airbag to deploy.
(3) Plug the red mouthpiece, remove it from the mouthpiece, and make sure that the headband is on the side of the airbag.
⑷ Place the rubber mouthpiece between the lips and teeth, and the teeth should bite the pad to ensure that the breath is isolated from the outside air.
⑸ Open the nose clip with your hands, clamp the nostrils, and close the nostrils. The wearer can use self-rescuer to breathe and safely withdraw from the disaster area.
⑹ Take off the miner's hat, put on the headband, and adjust the headband to.


Serial number model Rated protection time min Kg Overall dimensions mm Inspiratory temperature ℃ Expiration date Ventilation resistance (pa) Gas storage
1 ZH30 chemical oxygen self-rescuer 120min 1.9 176 × 102 × 170 ≤55 5 years in stock ---- ----
2 Isolated chemical oxygen self-rescuer Sit ≥ 120min 1.9 166 × 158 × 83 ≤60 ℃ ---- 196 ----
3 ZH45 isolated chemical oxygen self-rescuer 30L / min 2.1kg 227 × 177 × 96 40 ℃ ---- 150-300 > 76L

Compressed oxygen self-rescuer

压缩氧自救器

Compressed oxygen self-rescuer

The compressed oxygen self-rescuer is an isolated closed-circuit respirator. After being worn, the human respiratory system is isolated from the outside world, which can prevent various toxic and harmful gases from entering the human body. By means of cyclic breathing, the exhaled gas is absorbed by the CO2 absorbent in the clean tank, the CO2 is absorbed, and the remaining oxygen and the oxygen output from the pressure reducer enter the airbag and are sucked into the body through the mouthpiece. It is the same as the previous breathing method (meaning that the breathing airflow is absorbed through Agent) compared with self-rescuer, it has the advantages of less breathing resistance, no dust inhalation, no inhalation, low inhalation temperature, and comfortable breathing.

Applicable environment of compressed oxygen self-rescuer

1. For the underground coal mine operators to safely withdraw from the disaster area when there is a natural disaster such as a fire, gas explosion, or gas outburst, and when the breathing apparatus fails.
2. Used by chemical industry department when toxic and harmful gas escapes.
3, for use in petroleum extraction operations, natural gas or other toxic gases are prominent.
4. For high-rise buildings, used by personnel in the building to escape or to be rescued when a fire occurs.
5. Use by firefighters or other departments in toxic or harmful gas or hypoxic environments and other rescue uses.


Serial number model Use time min Nominal pressure of gas cylinder MPa Kg Overall dimensions mm Rated protection time Working pressure of oxygen cylinder Dosing oxygen
1 ZYX45 compressed oxygen self-rescuer 30 20 1.4 190 × 170 × 80 15-45 min 20 Mpa ≥1.2 L / min
2 ZYX-60 compressed oxygen self-rescuer 60 1.9 1.36 170 × 75 × 140 20-60min 20Mpa > 1.2L / min
3 Compressed oxygen self-rescuer 40 2.1 2.1 227 × 177 × 96 ---- 20Mpa > 1.2L / min

Compressed air self-rescuer

压风自救器

Compressed air self-rescuer

Compressed air self-rescuer is a fixed permanent self-rescue equipment. It is used for disaster relief protection in coal mines with coal and gas outburst. It is installed in the place where people work and in the tunnels or chambers where people move. It can also be installed in the tunneling and mining Working surface. When coal and gas outbursts occur, workers can enter the self-rescue device nearby and open the gas valve to avoid disaster.



The compressed air self-rescuer is generally used after forming a system, that is, several groups of compressed air self-rescue devices are installed at the same location to form a compressed air self-rescue station. Each group generally consists of 3 to 5 heads. How many heads are installed at each site should be considered as the work. Depending on the number of people working in the place, the number of installation heads should be greater than the number of people working in the place. The device system has a simple structure and a low price, and is an economical permanent self-rescue device system.

Pressure wind self-rescue device

压风自救装置

Pressure wind self-rescue device

The compressed air self-rescue device has the functions of decompression, flow adjustment, noise reduction, water drainage, dust prevention, etc. The structure is lightweight, easy to use and fast. When the gas in the coal mine exceeds the standard, the device is used to provide fresh air to the workers to achieve safety and disaster avoidance. Role.


Working principle of compressed air self-rescue device

The compressed air self-rescue device consists of 5 parts: pipeline, on-off valve, connection pipe, decompression group and protective sleeve. When the gas concentration in the coal mine exceeds the standard or signs of exceeding the standard, the gas path of the handle of the opening and closing valve body is unblocked, and the functional device quickly completes the actions of drainage, filtration, decompression, and muffler. At this time, the protective sleeve is filled with fresh air. For rescue personnel to breathe. The air pressure in the protective casing is 0.05 ~ 0.1Mpa. The pressure of the toxic gas outside the protective casing is lower than the internal pressure of the casing. Therefore, no harmful external gases will enter the protective casing and cause harm to the disaster avoidance personnel.

Water supply self-rescue device

压风供水自救装置

Self-rescue device for compressed air supply

When the product is installed, first reduce the pressure of the pressure reducing valve to the minimum, that is, use the hexagonal wrench provided with the equipment, unscrew the top nut of the pressure reducing valve, turn it counterclockwise to the end, and the pressure gauge shows zero. Then connect the underground water supply pipeline. Slowly adjust the pressure reducing valve clockwise. When the pointer of the pressure gauge points (0.5Mpa), stop the adjustment and screw on the adjusting hole nut. Then open each water supply valve one by one to see if each water supply pipe has enough clean water. Outflow. If the water supply is normal, please close the door of the water supply device and insert the door latch. For example, in an emergency, when underground personnel need to rescue drinking water, open the door of the box, and then open the valve of the corresponding water outlet, you can directly drink clean water to wait for timely rescue.


model ZYJ compressed air water supply self-rescue device Water supply pressure 0.1-0.5 MPa
Turbidity ≤10 NTU Suction negative pressure 1.47--1.96Kpa
Drinking water outlet 5 Initial water production 400 L / min

Automatic sonar

自动苏生器

Automatic sonar

Applicable environment of automatic regenerator: It is a first-aid device that uses oxygen pressure as power to automatically perform positive and negative pressure artificial respiration for unconscious persons. It is suitable for the rescue of respiratory paralysis or respiratory depression. The instrument is small in size, light in weight, simple in operation, reliable in performance and easy to carry. It is especially suitable for use in the rescue field of coal mines, chemical industry and other departments. It is also suitable for medical personnel to go out for first aid and escort the wounded on the way.

model MZS-30 Ventilation volume adjustment range 12-25 L / min
Positive inflation pressure 1.96-2.45Kpa Suction negative pressure 1.47--1.96Kpa
Automatic lung ventilation 15 L / min Spontaneous breathing supply 15 L / min

Air curtain spray system

气幕喷淋系统

Air curtain spray system

The high-quality gas nozzle is used to quickly blow the compressed air into the cabin personnel, and the sprayed gas is discharged to the outside of the cabin through a mechanical vent valve, thereby completing the cleaning of harmful gases. The evacuation chamber is a device forcibly installed in coal mines by relevant state departments to ensure that personnel in underground coal mines can use it in emergency situations in case of danger.

Technical parameters of air curtain spray system

Design pressure: 16.5Mpa
Maximum working pressure: 15Mpa
Working temperature: -40oC ~ 60 oC
Output pressure: 0 ~ 1.6MPa
Piping design: The air curtain design adopts the air curtain knife design. The air curtain knife is made of pure stainless steel, and the spray is a uniform gap with a gap of 0.05mm.
Control system design: The switch system adopts the design of a door-side mechanical valve.

Oxygen filling pump

氧气充填泵

Oxygen filling pump

Features: Suitable for oxygen and non-combustible gas filling, high filling efficiency, superior to national standard oxygen filling pump, rigorous structure, small size and light weight.


model AE101A AE102A
Inflation pressure 20MPa 30MPa
Displacement 5L / min 3L / min
Compression stages Level 1 compression Level 2 compression
Motor Power --- 2.2KW
Dimensions (mm) 860 × 565 × 640 860 × 565 × 640

Fire extinguishing device

防灭火装置

Fire extinguishing device

1. The underground track is mobile, convenient to transport and easy to operate;
2. There are two types (or more than two types) of powdered mineral materials;
3. Equipped with a mechanical stirring system to achieve mechanized continuous operation of production operations;

model ZHJ-80 fire extinguishing device ZHJ-130 fire extinguishing device ZHJ-200 fire extinguishing device
Power supply voltage (V) 380/660 380/660 380/660
main motor power 3.0 (kW) 4.0 (kW) 5.5 (kW)
Liquid storage tank (m3) 1 × 2 1 × 2 1 × 2
Grouting outlet pressure 1.2 (MPa) 1.2 (MPa) 1.2 (MPa)
Grouting flow 80 (L / min) 130 (L / min) 200 (L / min)

Inhibitor jet pump

阻化剂喷射泵

Inhibitor jet pump

It is mainly used to spray inhibitor solution in coal mines to prevent coal from spontaneously firing. It is suitable for fire prevention with floating coal sprayed in the goaf of coal mining face, fire prevention with high-hat cannula, pressure injection with inhibitor liquid, and fire prevention with injection of inhibitor solution with buried pipe in goaf of flammable coal seam.


Technical measures for inhibitor spray pump operation

When mixing the solution, stir it slightly, and wait until the inhibitor is completely dissolved in water before spraying. Before each spray, a person to check the integrity of the pipeline to ensure that the pipeline is intact and not leaking. During the spraying process, machinery metal, brackets and other components must be avoided, and protective measures must be taken to prevent the inhibitor from corroding the mechanical equipment. Sprayers must be certified to work, and must wear rubber gloves and raincoats. After the spraying, the staff is required to clean the mine car and the liquid injection pump with clean water to prevent the inhibitor liquid from being corroded.

Beam tube monitoring system

束管监控系统

Beam tube monitoring system

It is mainly composed of dust filter, single tube, beam tube, shunt box, suction pump, gas sampling control cabinet, monitoring computer, beam tube special chromatograph, printout equipment, system software, etc. The system is under the control of a computer, and the downhole gas is sent to the chromatograph by a surface air pump. After the chromatograph detects the results, it is analyzed by a computer. The entire process is performed under the control of a microcomputer and has a high degree of automation. 24-hour continuous online detection and analysis can be achieved, and all analysis data can be retained. So that staff can reuse the data.

1. Beam tube negative pressure sampling and chromatographic analysis, without any electrochemical sensor;
2. Spontaneous combustion prevention function, timely and accurately predict the degree of spontaneous ignition by analyzing the trend of the detection data.
3. The system automatically controls 24-hour online monitoring to achieve unmanned duties;
4. Complete output functions: 11 types of charts including normal analysis, beam tube analysis, trend analysis report and trend chart;
5. With automatic alarm function when the gas content exceeds the limit;
6. The number of database records is unlimited, and historical data is analyzed and compared;

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  • Security rescue equipment topic

  • Electrical equipment topic

  • Special Topics on Steel Equipment

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