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| Manual of JM series
colloidal mill |
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1、Summary
JM series colloidal mill is
a new-type equipment of wet type super micro grain processing,
suitable for the homogenization, emulsification, separation,
smash and milling of various emulsions. It is widely used
in foodstuff (fruit jam, juice, albumen milk, soy milk,
milk tea, dairy, beverage, etc.), pharmacy (various syrups,
nutrition liquid, Chinese Traditional Patent Medicine,
poultice, etc.), daily chemical (toothpaste, cosmetic,
washing lotion, etc.), chemical industry (pigment, dyestuff,
dope, lubrication, petroleum activator, etc.), emulsion
asphalt, coal floating agent, ceramic glaze, emulsion
detonator, nanometer material, etc.
2、Structure
JM series colloidal mill product
with compact design, beautiful appearance, fine sealing,
stable performance, convenient operation, simple decoration,
high production benefit as well as other features, it
is the most ideal processing equipment for treating fine
material.
Expect motor and part of accessories, all of the components
and parts contacting to material are made by high-intensity
stainless steel, especially, the movable and static millstones
are carried out strengthen treatment, so that they have
fine anti-corrosion and anti-abrasion ability to make
processed material without pollution.
JM series colloidal mill is mainly made up of three
parts: grinding head, pedestal driving part and special
motor. Thereinto, the movable and static millstones are
the key parts of this machine, as a result, their models
should be different according to the characters of processed
materials. However, all of them are made by stainless
steel. Continuous type (also called vertical type) motor
should be designed specially according to the difference
of models, equipped with water-baffle dial at the flange
of the motor to prevent leakage. The vertical type structure
refers to picture 1 and 2, and the separated type structure
refers to picture 3.
3、Principle
The basic working principle of colloidal mill
is shearing, grinding as well as high-speed stirring applied
force, grinding is finished depending on the relative
movement of tooth-form slope, one of them rotates at high
speed, while the other stays still to make materials that
passing between tooth-form slopes receive great shear
force and friction, and to grind, emulsify, smash, homogenize
and mix them under complex forces such as high-frequency
shake, high-speed vortex and others at the same time,
so as to achieve the effect of fine and super micro.
4、Installation
JM series colloidal mill has stable operation
and slight shake, can be parked on even ground or equipped
on cement base according to using requirements. In order
to make users’ production and using convenient, all the
pedestals of colloidal mills have installation holes,
the installation dimension of vertical colloidal mill
refers to picture four.
5、Operation and notice
Connect material inlet or material inlet pipe
and material outlet, then connect material outlet circulation
pipe in sequence, and connect cooling water pipe （JM-L50a、b
system without cooling water）and leakage discharging pipe
at last.
After installing start device of electric power and
(conditional users can match with ampere meter and indicator
lamp) connecting electrical source, the operation direction
of machine should be especially noticed to judge whether
the motor rotates normally or not, or observe whether
the rotation direction is in accordance with the “red
rotation direction sign” on the colloidal mill from material
inlet. Reversion is forbidden.
Adjust clearance of millstone, “anticlockwise” screw
two handles of command dial to loose them and “clockwise”
screw command dial in case of not starting the machine,
stretch one hand into the square hole of pedestal to rotate
motor leaf, stop it when there’s slight friction sound,
at this time, the reading of index confirms that the clearance
between movable and static millstones is “0”. But the
reading of the index should be remembered, for it is not
0 degree, the fact is that the clearance of millstone
is “0”, then reverse (anticlockwise) command dial for
several circles to make the clearance larger then 0. Generally
speaking, under the condition of satisfying fine requirements
of processed material, make the clearance of millstone
regular as much as possible.
Put through cooling water （JM-L50a、b system without
cooling water）, put material into the mill to process
and produce after the colloidal mill operates normally.
Put proper quantity of water or other liquids that are
related to processed material into the material inlet
before shutting down, and put material into it immediately
after starting, or the hard combined sealing part may
be damaged, or the motor may be burnt because of leakage.
Make sure there isn’t any quartz, cullet, metal scraps
or other hard materials in processed materials, it is
better to use 15 mesh/ inch sieve to filter and process.
Or the movable and static millstones may be damaged.
Motor load of processed materials should be noticed,
the material should be reduced if it is overload.
The material outlet valve is not allowed to close down
when the colloidal mill is operating to prevent leakage
because of over-pressure in the cavity of mill.
Colloidal mill belongs to precise machinery, with little
clearance between millstones and with rapid rotate speed.
Operators should be on duty strictly, operate according
to the regulations, shut down the machine immediately
if there is failure, and carry out production after eliminating
it.
After using, the colloidal mill should be disinfected
and the inner part should be cleaned out thoroughly, make
sure not to remain material in it to avoid damage because
of hard machinery’s cohesion.
6、Maintenance and repair
Colloidal mill is high-precise machinery, the linear
speed achieves 20m/s, with very small clearance between
millstones. After examining and repairing, coaxiality
error between crust and principal axis must be rectified
with centigrade meter, and it should be ≤0.05mm.
When repairing the machine, in the course of disassembly
and reassembly, it can not be knocked by hammer, with
wooden hammer or tap it after cushioning wood block to
avoid damaging accessories.
Sealing parts of this machine: static sealing and dynamic
sealing. The static sealing adopts O-shaped rubber ring
while the dynamic sealing adopts hard mechanical combined
sealing. If there is nick on the hard sealing surface,
it should be grinded to restore by flat glass or flat
casting, abradant material had better be≥200# carborundum
grinding paste. Please replace it if the sealing part
is damaged badly or the crack is very serious.
In the course of using, maintain it regularly according
to processed material.
The maintenance and using of motor, please refer to
the motor manual.
Most of the spare parts along with the machine are GB
as well as standard parts of ministry and bureau, they
can be purchased all through the country. |
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JM series colloidal mills 