With the rise of laboratory labor costs and the improvement of testing needs, more and more researchers choose laboratory bottle washing machines. The laboratory bottle washing machine not only improves the work efficiency of scientific researchers, but also avoids accidents that occur when researchers wash bottles. In the past, in the process of user use and feedback, problems such as equipment operation and maintenance were often mentioned. Today, Xiaobian will talk to you about these problems.
Laboratory bottle washing machine operation process:
1, basket: by hand all kinds of bottles are all loaded into the net basket, filled as much as possible, leaving no gap as good, and then cover the net basket with a good lid.
2. Feeding: Hang the net basket on the running chain rod at the feeding port and buckle the buckle.
3, irrigation: when the chain runs to the descending channel, the net basket will flip 1800 under the action of the guide rod, and enter the sink in the upward state of the bottle mouth, so that the bottle is quickly filled with water.
4, ultrasonic cleaning: the bottle filled with water is moved horizontally at the bottom of the tank, and the two sides and above the tank are equipped with ultrasonic shock plates, and the bottle is cleaned by ultrasonic waves.
5, water control: after ultrasonic cleaning of the bottle, when the chain enters the rising section and the horizontal section, the bottle leaves the water surface, because the bottle mouth is facing down at this time, so the water in the bottle naturally flows out.
6. Spraying: After the water control section, there is a high-pressure nozzle underneath, and a spray plate on the top, and the bottle is rinsed with filtered water.
7. Discharge: When the net basket reaches the discharge section, the net basket is removed by hand.
Maintenance precautions for bottle washing machines
1． According to the requirements of the use of the bottle washing machine maintenance: for the sleeve roller chain, bottle feeding system, bottle out system, return device bearings, each shift plus - grease; chain box drive shaft, universal coupling and other bearings every two shifts plus grease; each gearbox quarterly inspection - secondary lubrication, when necessary should replace the lubricating oil.
2． Always pay attention to whether the movements of each part are synchronized, whether there is an abnormal sound, whether the fasteners are loose everywhere, whether the liquid temperature and liquid level meet the requirements, whether the water pressure and vapor pressure are normal, whether the nozzle and filter are blocked and cleaned, whether the bearing temperature is normal, and whether the lubrication is good. Once an abnormal situation is found, it should be dealt with in a timely manner.
3． Every time the washing liquid is replaced and the wastewater is discharged, the inside of the machine should be thoroughly rinsed, the dirt and broken glass should be removed, and the brush should be cleared through the filter cartridge.
4． The heater should be sprayed with high-pressure water once a quarter, and the dirt filter and level detector on the steam line should be washed once.
5． Brush the nozzle every month, unclog the nozzle, and adjust the situation in the nozzle in time.
6． Check various chain tensioners every six months and adjust them if necessary.
Common faults and troubleshooting of laboratory bottle washing machines
(1) Bottle feed failure
Phenomenon: the bottle cannot be pushed into the bottle box, the bottle clutch action, the trigger limit switch leads to shutdown, and the bottle failure indicator is on.
Cause: Glass fragments remain in the bottle box.
Exclusion: At this time, the propulsion lever is driven backwards by the return device, if the return distance is not enough, you can also use the button of the operation box to make it further retract, remove the glass sheet, twist the knob to reset the bottle safety clutch, the red light is off, and the machine can be restarted.
(2) Failure occurs
Phenomenon: the bottle is stuck in the glass, the bottle safety clutch is opened, the limit switch is stopped, and the bottle fault indicates that the red light is on.
Cause: Glass or debris stuck, causing overload.
Exclusion: Remove the glass or blocking bottle or debris, twist the knob, reset the bottle safety clutch, the red light is off, and the system can be restarted.
(3) Drive shaft I. or II. and III. overload
Phenomenon: The force arm turns to touch the stroke switch, causing the shutdown, and the drive shaft 1 or 2, 3 overload indicator red light is on.
Causes: (1) abnormal resistance occasionally occurs during the movement of the chain box, causing overload; (2) the chain is too loose or too tight.
Exclusion: (1) Manual main motor handwheel, so that the safety protection device is reset, the red light is off, and the machine can be restarted. (2) Take the above measures, repeat many times invalid, you can consider properly pressing the disc spring. (3) Adjust the tightness of the large chain. (4) When the above measures cannot eliminate the overload phenomenon, it is necessary to find out the cause of the chain box jamming, and the obstacle can be turned on after eliminating the obstacle to avoid greater damage to the machine.
(4) Bottle bottom blowing failure
Phenomenon: The bottom of the bottle blower is malfunctioning, and the motor failure indicates that the red light is on.
Cause: Blower overcurrent relay turned on and lost power.
Exclusion: Maintenance by electrical personnel.
(5) Too much broken bottle
Phenomenon: Increase in glass fragments.
Reasons: (1) The bottle temperature when entering the bottle is too low, and the temperature difference between the tanks is too large. (2) The quality of the bottle is poor. (3) Mechanical failure.
Exclusion: (1) Increase the bottle temperature before entering the bottle. (2) Adjust the temperature of the liquid in each tank and reduce the temperature gradient. (3) Ensure bottle quality. (4) Check the places where the blocking card may occur and give it elimination.
(6) Difficulty in heating up
Phenomenon: The vapor pressure meets the requirements, but the temperature of the scrubbing liquid rises with difficulty.
Reasons: (1) The heater condensate is not smoothly eliminated. (2) The steam supply pipe is too long and insulation is not good, making it difficult to eliminate too much condensate. (3) The heater scale is too thick, which affects heat transfer.
Exclusion: (1) Open the bypass valve of the trap to exclude condensate. (2) Improve the insulation layer of the steam pipeline. (3) Remove scale regularly
(7) The bottle is unclean
Phenomenon: In the bottles that have been washed out, the number of bottles that cannot be washed is increased.
Cause: (1) The temperature of the washing liquid is too low. (2) The concentration of washing liquid alkali is too low. (3) There is too much foam in the washing liquid. (4) The nozzle is blocked. (5) The bottle is filled with difficult to wash substances.
Exclusion: (1) Increase the temperature of the washing solution. (2) Supplement caustic soda. (3) Improve the washing liquid formula. (4) Unclog the nozzle. (5) Do not let the bottle containing the difficult to wash substance into the machine.
(8) The injection pressure drops
Phenomenon: The injection pressure drops and the corresponding pressure indicator on the operating box changes from green to red.
Reasons: (1) The pump is running abnormally. (2) The liquid level decreases. (3) Filter debris deposition is too much, and the resistance increases.
Exclusion: Check the relevant pump and the relevant level separately, and clean the filter.
(9) The bottle feeding device is not moving
Phenomenon: The finger of the bottle does not move and does not respond.
Cause: (1) Gear wear. (2) The bottle plate is worn. (3) The camshaft does not rotate.
Exclusions: (1) Replace the cam (shaft). (2) Replace the bottle plate.
(10) Slip the clutch of the bottle
Cause: (1) Butterfly spring is too loose or deformed. (2) The steel ball groove of the pressure plate is deformed and the positioning is not accurate. (3) Deformation of pressure plate and pressure plate. (4) Deformation of steel balls.
Exclusion: (1) Press the butterfly spring or replace it. (2) Replace the booster plate. (3) Replace the pressure plate and the steel ball of the multi-pressure plate. (4) Tighten the compression screws.
(11) Bottle entry clutch failures often occur
Reasons: (1) The transmission roller chain is too loose, and there is an impact when passing the power torque. (2) The pressure plate tightening screw is loose. (3) Butterfly spring is too tight or too loose. (4) The pressure plate has low hardness.
Exclusion: (1) Tensioning transmission chain. (2) Tighten bolts, screws, and put on the anti-loosening agent. (3) Adjust the butterfly spring. (4) Replace the pressure plate with good quality.
(12) The bottle is not in place
Reasons: (1) Pushing the bottle refers to deformation or insufficient length. (2) The lifting and lowering time of the bottle feeding track is not coordinated when entering the bottle. (3) The bottle feeding time is too early or too late compared to the bottle box.
Exclusion: (1) Correct the push bottle finger or replace the bottle push finger. (2) The bottle feeding is completed when the feeding rail is lowered to the low point of zui. (3) The bottle feeding process is completed in the bottle box.
(13) The peeling rate of the standard paper before the removal of the standard 1 is not high
Causes: (1) Fan spray blockage or low spray pressure.
(2) The neck is too large, and the bottle cannot swing back and forth when passing through the bumpy track in the bottle box.
(3) The soaking time is not enough.
(4) The label paper or adhesive selection is not correct.
Exclusion: (1) Cleaning and increasing the spray pressure.
(2) The diameter of the bottle cannot exceed 82mm.
(3) Increase the pre-soaking and increase the concentration of warm water alkali.
(4) Choose standard paper or adhesive with good water permeability