Middle Consistency Hydrapulper

• Installation

  1. As per the foundation drawing, determine the center line and revise each corresponding position dimension, pour equipment foundation with reinforced concrete.
  2. Unpack and acceptance check if all parts are complete, clean the anti-corrosive grease
  3. The foundation goes through a certain period of maintenance (general 15 days), correcting until no error, install the equipment. Hang anchor bolts on equipment in advance, lift the equipment to foundation by crane, revise the level and then cast re-enforced concrete to preserved holes for anchor bolts. Attention: asbestos washer and sealing ring are required to added between rotor device and channel steel flange and fully spread sealing glue to avoid leakage.
  4. Install motor; please keep two belt wheels at same level.
  5. After a certain period of maintenance (general 15 days), revise the centre vertical deviation of the equipment, no more than 0.15mm/m, then screw the anchor bolts, casting re-enforced concrete again to cover the base plate.

• Operation Instruction

  1. Commissioning

  (1) Before commissioning, remove contaminants in the equipment, add oil to all oiling points, check whether exist loose connecting bolts, whether tightness of v-belt is suitable, whether the direction of rotation is right (overlook the rotor, it should rotates counterclockwise).

  (2) Add water to pulper to about 1/5 volume, check whether each valve or flange connections leak. Switch on motor and run one hour, check whether bearing overheated, stable running, normal sounds, etc. If all are normal, running with pulp is permissible.

  2. Production Operation

  (1) Before putting in to normal production, add water into the tank till 1/3-2/3 volume; switch on the machine, water in tank forms vortex, gradually and evenly feed raw materials, adjust the feeding volume of water and raw material accordingly to make make the stock reach desired consistency and control the distance from the highest liquid surface to the edge of pulp tank (specified in outside drawing); please notice that there should not be any excessive or uneven feeding.

  (2) When the pulper stops running for power outage or other special circumstances, close the power switch, open the washing water at the bottom of outlet plate to wash, discharge the stock in the tank, lower the pulp level as far as possible; it is not allowed to start equipment when the storing pulp exceeds 1/2 volume to avoid burning down the motor.

  (3) During operation, frequently check the bearing temperature, whether the bolt is loosening, whether the flange and valve leak water or stock, whether the packings or the bearing is overheated, whether the electric current is too high, etc.; any problem found should be handled immediately.

  (4) Pre-treatment of hard contaminants in waste paper is needed to avoid damaging the equipment. Regularly salve and remove impurities that are not easily broken according to raw materials; after shut down when changing shift, discharge residue stock and clear away all foreign matters in the sedimentation tank, keep the pipeline unblocked.

  (5) When change raw material or if exist sedimentation of pulp or dirt, please wash by water

• Maintenance

  1. Regularly check the lubrication of the equipment running parts, add NO. 2 calcium sodium grease to each rolling bearing ever two weeks, clean and exchange once a year

  2. Regularly check wearing situation of rotor ensure replacement in time

  3. Regularly check the equipment, no loosing bolts, no exceeded rated current of motor; when temperature rise of the bearing exceed the ambient temperature 35 degree, shut down to check.

  4. Avoid metal and other bulky hard impurities falling into the pulp chest.

  5. Exchange bearing:

  (1) Lift out the whole transmission part

  (2) Exchange the bearing as instructed by structure drawing

  (3) Assemble in reverse order

  (4) When exchanging bearing of hydrapulper with 5M³ or above, please disassemble the rotor and screen plate from top and big belt wheel bottom side, then lift the whole part out, dismantle the bearing, assemble the new one in reverse order

  6. According to the using situation, overhaul one time about half a year is advisable.

• Spare Parts

  No.	Standard	Name	Type	Specification	Quantity
  1	GB/T286-94	Bearing	Double row self-aligning roller bearing 22332CK		1
  2	GB/T283-94	Bearing	Double row self-aligning roller bearing 22334C		1
  3	GB/T301-95	Bearing	Single direction thrust ball bearing 51126		1
  4	GB6584-86	Withdrawal sleeve	AH2332		1
  5	Made by Yunda	Shaft sleeve			1
  6	GB/T9877.3-88	Framework oil seal	∅190X∅160X15		1
  7	GB/T9877.3-88	Framework oil seal	∅160X∅130X12		1
  8	GB/T9877.3-88	Framework oil seal	∅290X∅250X15		1
  9		Oily graphite packing	F20X860		1
  10		V-belt		Narrow V-belt 25J (8V) 9000/2	6
  11	Made by Yunda	Waster seal ring			1