Deji Machinery reminds you 

Pay attention to the equipment“Prevent cold”

Do enough“Cold-proof homework”  Equipment“Warm for winter”

The winter solstice begins，Count nine cold days，With the coming“Thirty-nine days”，The nationwide temperature drop is coming again.。It is well known，So far，Deji Machinery has produced and sold more than 800 sets of asphalt mixing equipment.，Products are available in all provinces in China.、Municipalities and autonomous regions。Take China as an example.，Into winter，Parts of the South（Such as Shanghai、Guangdong、Guangxi and other places）At present, it is still under the temperature of normal production.，While most of the north（Such as the northeast、North China）The temperature is currently below zero.，The equipment is basically in a state of shutdown.。So，How to plan reasonable equipment maintenance according to their own temperature conditions or what precautions should be paid attention to in normal production??

For some equipment in the central and southern regions，Although it may meet the construction temperature requirements at present.，But it is also basically above and below the standard threshold.，In this way“Low temperature construction”In the environment，It is suggested to adopt the asphalt foaming warm mix technology or the process of adding warm mix agent into asphalt for mixing，Under the condition of not increasing or even reducing the energy consumption compared with the common hot mixing technology,，To ensure the quality of finished product。

Precautions for low temperature construction

 

1

Strictly control the temperature of asphalt mixture and its discharge，The factory temperature is controlled at the upper limit of the discharge temperature.；

2

Transport by large-tonnage vehicles，The number of trucks shall be the same as that of the mixing plant、Paving equipment、Match the number of road roller equipment，Transport vehicles shall be covered with quilted tarpaulin.，The upper part and the left and right parts of the transport vehicle shall be covered with quilted tarpaulin.；

3

Steel wheel rolling shall be conducted on the premise of ensuring normal rolling.，The amount of water sprayed should be minimized.，Avoid rapid loss of temperature。

For the vast majority of the northern region,，The equipment is basically in a state of shutdown.，Under such circumstances,，We suggest making good use of this time to carry out a comprehensive review of the equipment.“Physical examination”，A comprehensive equipment overhaul and all-round maintenance is an important part of extending the service life of equipment and ensuring the quality of subsequent production.，Pay special attention to the key maintenance parts before commencement，For example：

1

Cold charge storage and supply system

Check the distance between rubber baffles on the belt conveyor、Scraper position、Belt tension、Tightness of expansion sleeve bolt of cold charge bin drum、Material shortage alarm device、Vibration motor amplitude of small vibrating screen, etc.；

2

Drying system

Check the jockey pulley、Wear of the trunnion ring，Determine whether the tugboat angle and other parameters need to be adjusted，Check the deformation and wear of the material box、Check the state of the spring plate；

3

Main building system

① Vibrating screen：Check screen tension、Material blocking and abrasion、Amplitude of sieve body, etc，Regular maintenance of vibration motor、Vibrating screen air door position inspection；

② Hot Bin：Check the protective plate of the hot bin level gauge、Bulkhead integrity、Check the tightness of the cylinder、Lubrication condition、The solenoid valve cleans up the dust；

③ Weigh：Tightness of bone-weighing door bolt、Whether the powder weighing bag is fastened and the stress condition、Clean the butterfly valve、Weighing internal adhesive material, etc.；

④ Stir：Check the wear condition of mixing pan blade and lining plate、Whether there is material leakage when opening the door、Access door safety switch, etc.；

⑤ Finished product warehouse：Check the travel switch、Operation status of electric push rod、Liner wear、Cylinder tightness, etc；

⑥ Elevator：Check the main hoist、Wear condition of the driven wheel、Chain tension and wear of chain link and hopper, etc.；

⑦ Powder can：Check the level indicator、High level alarm、Check whether the dust remover on the top of the warehouse works normally.、Check the screw manhole from the powder recovery tank to the powder extractor to confirm the powder feeding condition, etc.；

4

Electronic Control System

Clean the case of industrial personal computer、PLCModule（Engineers can be consulted）、Sealing condition of inlet of control room、Clean the sundries in the control room、Installation of rat guard including cables；

5

 Burner

Clean the carbon deposit on the cyclone plate、Dust inside the burner、Check for possible loosening of bolts due to vibration，Such as：Natural gas gun、Cyclone plate、Ignition gun、Fixing bolts for blower, etc.；

6

Dust removal system

Bag wear、Spiral operation of lower box、Tightness of soft connection、Tightness of each dust box、Abrasion and dust accumulation of induced draft fan blade、Each solenoid valve is covered with dust、Drainage of induced draft fan、Check the temperature control switch, etc.；

7

All rotating transmission parts of the equipment

Maintenance of bearings，Check for wear，Whether the transmission deviates, etc.，Inspection and replacement of reducer gear oil；

8

Start and operate regularly

If the winter break is longer，Start the machine regularly and pay attention to the operation of the equipment，Timely handling in case of abnormality；

9

Establish maintenance and repair records

Record the abnormalities in the process of maintenance and repair，And time for repair and replacement of parts，Facilitate follow-up tracing and analysis；

For more information, please refer to Durkee Machinery.《Operation and Maintenance Instructions for Batch Asphalt Mixing Plant》。

Whether you are in“Low temperature construction”Normal production in the environment，Still in“Winter break”Equipment repair and maintenance，If you need，Durkee is mechanically stable、High quality、Professional after-sales service team at any time to provide you with a full range of services and technical support.，Including offline support。In addition，Deji Machinery has a spare parts warehouse of over 8000 square meters.，Long-term storage of more than ten thousand specifications of spare parts，And，Business personnel 7*24 Power on，Full strength、Quickly guarantee the supply of spare parts，To be efficient、Major、One stop、The service of the whole life cycle ensures that the users of Deji Machinery have no worries in the whole process.！