The utilization rate of post and telecommunications machinery and the storage capacity of the freight yard are not fully utilized, and the near-field yard is a blind spot for operation.

The cantilever belt conveyor hump adopts a double-row three-group sealed roller support set, which is difficult to clean by falling coal, and the roller is stressed, easily damaged, and causes tearing of the conveying tape.

The limit device is mechanical, easy to malfunction, and often causes malfunction.

The driving form is a motor leaf coupler god NJ drive shaft leaf planetary gear reducer bucket wheel axle bucket wheel wheel body hopper.

The motor and the coupler are connected by a key. The disassembly and disassembly of the drive shaft often damages the first stage bevel gear of the planetary gear reducer. Due to insufficient oil supply, the overload protection is often unreliable, often overloaded, and many machine damages occur.

The second modification content replaces the relay control with the Japanese Omron type, which simplifies the control circuit, reduces the wiring terminals, and improves the reliability of electrical control.

The original nine electrical cabinets are merged into four, namely the power cabinet cabinet frequency conversion cabinet and the control cabinet, which realizes centralized control, which is convenient and neat, reduces the point of failure, and is easy to check for faults and convenient for maintenance.

The power supply system uses a type of safe sliding wire.

Due to the length of the bucket wheel reclaimer walking operation, the double-end supply voltage compensation method is adopted.

After the transformation, the reliability of power supply is improved, the contact of the sliding wires is good, the service life is long, and there is no leakage.

A Fuji-type inverter directly drives an AC motor as a rotary drive system to ensure smooth rotation.

The trolley traveling mechanism is changed to a Fuji-inverter, and two frequency-controlled four-one-w motors are set. Each of the traveling trolleys uses a single motor to form a single-passenger planetary differential speed-reduction mechanism, and the total installed capacity is reduced by w. To simplify the walking mechanism.

Increase the angle of rotation.

We took the change of the bucket wheel stacker and reclaimer operation mode, removed the tail car to remove the main cable bracket, changed the main cable direction and other measures, so that the turning angle was increased to the soil degree, which improved the ability of the freight yard to effectively store coal.

The cantilever belt conveyor idler is changed into a single-roller single-roller structure to solve the problem that the idler roller is easily plugged by coal. The sealing structure of the roller support bottom plate is changed into an open structure, and the material plate is welded at the tail. In order to solve the problem that the hump is not easy to clean, the hump is changed from the degree to the cushioning roller to solve the problem that the hump is overstressed and the belt is torn.

A type of reflective infrared photoelectric limit switch ensures the safety, reliability and sensitivity of the limit device.

The bucket wheel drive system is changed to hydraulic drive, which has the advantages of less faulty judgment, stable operation, energy saving, etc. Due to the use of imported hydraulic components, the problem of running and dripping is basically not, and the damage of the planetary gears is greatly reduced.

The economic performance of the three economic benefits can be improved. The efficiency of coal loading and unloading operation of each bucket wheel stacker and reclaimer is improved. The failure rate is reduced. The use of frequency converters reduces the installed capacity of the motor, and the power consumption is reduced. Each bucket wheel stacker and reclaimer is reduced. Thousands of tons of operation power saving 12 structure is simplified, reliability is improved, and the maintenance time of each bucket wheel stacker and reclaimer is reduced.

After increasing the angle of rotation, increase the yard storage capacity by 10,000 tons.

The maintenance cost is greatly reduced, and the two bucket wheel stacker reclaimers save 10,000 years.

Reduce the load of four bulldozer loaders to save a lot of money.

Extends the life of the rotating support, and a rotating support requires 10,000 yuan.

The author of the Xuzhou Port Authority Technical Bureau communication address in Xuzhou City, Jiangsu Province, Huaihai West Road, a record of the performance of female condensate and impurities.

Zhou Yizhi Our company is a large-scale non-ferrous product processing enterprise, which needs a large amount of compressed air to deliver nitrogen mechanism nitrogen through degreasing.

In order to remove the condensed water and impurities in the compressed air, a gas-liquid separator is installed on the main road of the compressed air to perform gas-liquid separation, impurities are excessively smashed, and the separated water impurities are discharged by automatic drainage.

Due to the high humidity of the air, too much water in the compressed air in spring and autumn, combined with the influence of debris, causes the automatic drainage to be blocked frequently, causing a large amount of water to spread from the gas-liquid separator to the dry machine, and the desiccant fails, which cannot be prepared. The gas required for the nitrogen generator (dew point temperature 礴 water content affects production.

The problem is solved by using electrical appliances to control the discharge of condensed water and impurities.

We installed a two-position two-way electromagnetic cutting (straight-through) in the outlet of the gas-liquid separator (that is, the place where the automatic drainage was originally installed, and used the time relay to control the interval between the two discharges and each time. The two discharge time can be selected at 5).

In this way, the interval time and the length of the sewage discharge time can be set according to the specific conditions of the environment to achieve the purpose of discharging condensed water and impurities at one time.

After the improvement, the dryer works very stably, the quality of the gas source is improved, and the nitrogen generator works normally. After two months of use, the failure rate is zero.

Author's unit Changsha Copper and Aluminum Co., Ltd. Communication Address Changsha City, Yuhua District, Hangkong Road, the number of commissions, a postal, China equipment management

3 Wheel Electric Cargo Tricycle

Xuzhou Hengshang Mechanical and Electrical Co., Ltd. , https://www.hengsenergy.com