CN109317261A - Large-size ball mill water cooling system - Google Patents
Large-size ball mill water cooling system Download PDFInfo
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- CN109317261A CN109317261A CN201811337498.5A CN201811337498A CN109317261A CN 109317261 A CN109317261 A CN 109317261A CN 201811337498 A CN201811337498 A CN 201811337498A CN 109317261 A CN109317261 A CN 109317261A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/1815—Cooling or heating devices
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Abstract
The present invention provides a kind of large-size ball mill water cooling system, comprising: ball milling body and water cooling system.Wherein, the ball milling body includes: ball milling cylinder, ball milling bush seat, ball milling gear wheel；The water cooling system includes that cooling water adds device, purification device, pond, cooling tower and heat exchanger；Purification device includes: filter, the water inlet for injected clear water, the water outlet for draining, intake valve, air outlet valve, blower from air to the filter, backwash water pump, the backwash controller for controlling backwash process for conveying.The present invention is handled by cooling water of the purification device to injection water cooling system, reduce the concentration of calcium and magnesium ion, simultaneously, utilize the filter effect of the variation feedback filters of cooling water pipe internal diameter in ball milling bush seat and heat exchanger, when filter is ineffective, backwash is carried out to filter in time, solves the problems, such as to cause cooling effect to be deteriorated because cooling water pipe blocks.
Description
Technical field
The present invention relates to a kind of ball mill cooling technology fields, in particular to a kind of large-size ball mill water cooling system
System.
Background technique
Ball mill is suitable for the various ores of grinding and other materials, is widely used in ore dressing, the industries such as building materials and chemical industry.Ball
For grinding machine during grinding ore, consumed energy is largely converted into thermal energy, and longtime running will appear lubrication thin oil and return
The problems such as oil temperature is excessively high and bearing bush temperature is excessively high, operation and service life to machine will cause certain influence.
This high problem is spent for ball mill operational process medium temperature, most widely used at present is to increase water cooling system
System, for example, the patent of invention that Chinese application publication number is CN201210490863 discloses a kind of improved ball mill cooling system
System and cooling means, major technique are contemplated that, including ball milling body and water tank, and freezing is linked between ball milling body and water tank
Machine system, setting evaporator, condenser and control cabinet, evaporator one end are connected with water tank in refrigerator system, the other end with it is cold
Condenser is connected, and one end of condenser is connected with the cooling water inlet of ball mill, and the cooling water outlet of ball mill is connected with water tank, with
Ensure that ball milling cooling water temperature is lower, more stable, thus make running ball mill temperature maintain one it is metastable
Low-temperature condition.
But above-mentioned improved cooling system of ball grinder has following defects that
Contain calcium and magnesium ion and other minerals in water, running ball mill is being carried out using water cooling system
When cooling, high temperature can make cooling water evaporation fall a part, it is therefore desirable to new water is constantly supplemented into cooling system, it is so anti-
Multiple, the concentration of the calcium and magnesium ion in cooling water is continuously increased, and forms the carbonate not readily dissolved, is attached in thin oil lubricant
On system thermal exchanger pipe inner wall and bearing shell cooling water channel, causes cooling water recirculation system to block, heat is caused to exchange
Effect is poor, and causes lubricating oil temperature and the excessively high problem of bearing bush temperature, and bearing shell is chronically at the work status of high temperature, meeting
It is substantially reduced service life.
Summary of the invention
The purpose of the present invention is to provide a kind of large-size ball mill water cooling systems, to solve to propose in above-mentioned background technique
Cooling water mineral concentration increase, formed carbonate be attached in heat exchanger pipe inner wall and ball milling bush seat
Cooling water pipe inner wall blocks cooling water recirculation system, leads to the problem of cooling effect difference.
To achieve the above object, the following technical solutions are proposed by the present invention, a kind of large-size ball mill water cooling system, comprising:
Water cooling system and ball milling body, wherein the ball milling body includes: the ball milling cylinder for grinding material, the ball grinding cylinder
Internal portion studs with wear-resistant material, and there are also a hollow shafts for the ball milling inner barrel；For protecting and fixing the ball of the hollow shaft
Bush seat is ground, the ball milling bush seat is connected with the part that the hollow shaft exposes to the ball milling cylinder；For being driven
Ball milling cylinder is stated, the ball milling gear wheel of the ball milling barrel body rotation is made, the ball milling gear wheel is circular ring shape, is covered in the ball milling
Outside cylinder；
The water cooling system includes adding device, for benefit for adding the cooling water of cooling water into water cooling system
The purification dress that the mineral ions such as the impurity such as the particle in cooling water, suspended matter, the colloid that add and calcium and magnesium ion are filtered
It sets, the pond for storing cooling water, the cooling tower for reducing cooling water temperature in pond and the heat for cutting oil
Measure exchanger.Cooling water pipe is respectively set in the inside of the ball milling bush seat and heat exchanger, distinguishes on the cooling water pipe
One ultrasonic sensor is set, the cooling water is added device and is connected to the filter, the side in pond setting one it is to be opened/closed enter water
Mouthful, it is connect by cooling water pipe with purification device, the ball milling bush seat passes through the first water pump and cooling water pipe and the pond
Connection, the ball milling bush seat also pass through oil pump and oil pipe and connect with the heat exchanger, and the pond passes through third water pump
It is connect with cooling water pipe with the cooling tower；
The purification device includes, for filtering the filter of cooling impurities in water and mineral ion；It is clear for injecting
The water inlet of water is located at filter top, is connected to the filter；For the water outlet of draining, it is located at filter bottom, with filtering
Device connection；A Water quality detector is arranged in the inside of water outlet, for detecting the water quality of discharge water；For the intake valve of air inlet, use
In the air outlet valve of outlet, it is connected to the filter respectively；For the blower of the conveying air into filter, it is connect with intake valve, and
For controlling the backwash water pump of the purification device of clear water entrance, it is connected to the filter；For controlling the second backwash of backwash process
Controller is located at filter surfaces.
Further, one end of filter is added device with cooling water and is connect, and the other end is connect by cooling water pipe with pond,
Filter is double medium filters, and double medium filters include that the two kinds of filtering of activated carbon filter layer and quartz sand filtration layer are situated between
Matter, quartz sand filtration layer is for stopping undissolved particulate contaminant in water, and activated carbon filter layer is for adsorbing not by quartz sand
Filter layer stops the impurity and the minerals such as colloid and calcium and magnesium ion of falling.Cooling water adds device and injects cooling into filter
Water, when cooling water flows through dielectric layer, the mineral ions such as particle, suspended matter, colloid and calcium and magnesium ion in cooling water are situated between
Matter layer stops, after absorption, and cooling water is flowed into pond by cooling water pipe.
Further, the filter medium quartz sand particle diameter is usually in 0.35-0.55mm, the quartz sand filtration layer
It is tightly packed by quartz sand, undissolved particulate contaminant in drainage is crossed by Intercepting effects；The filter medium activated carbon grain
Degree is 8-30 mesh, and the activated carbon filter layer filled by active carbon particle, is located at below quartz sand filtration layer, for adsorb not by
Quartz sand filtration layer stops the impurity and the minerals such as colloid and calcium and magnesium ion of falling.
Further, the first ultrasonic sensor is arranged in the outer surface of the cooling water pipe inside ball milling bush seat, and heat is handed over
The second ultrasonic sensor is arranged in the outer surface of cooling water pipe inside parallel operation, to measure the internal diameter of above-mentioned two cooling water pipe,
And the second backwash controller is transmitted in the way of wireless transmission, judged by the speed that internal diameter changes miscellaneous in cooling water pipe
Matter growth rate.The internal diameter information that the second backwash controller measures ultrasonic sensor in a period of time, according to such as
Lower formula operation determines the growth rate k of impurity:
In formula, k indicates the growth rate of impurity in cooling water pipe, d0Indicate the initial inside diameter of cooling water pipe, d1、d2、d3
Every by a t time, the cooling water pipe internal diameter that ultrasonic sensor measures, the variable quantity of Vt expression time are respectively indicated, π is
Constant.
Further, there are preset standard impurity growth rate k in the second backwash controller0, second backwash
Cooling water pipe that controller real-time reception is measured from the first ultrasonic sensor, the second ultrasonic sensor and cooling water pipe
Internal diameter information carries out calculation process by above-mentioned formula (1), obtains the impurity growth rate k every time tn, and by knWith it is pre-
If value k0It makes comparisons, works as kn> k0When, show that impurity growth rate is too fast, filter tends to saturation state, at this time by the second backwash
The water inlet that pond side is connected to the filter is closed in controller control, and starts backwash procedure.
Further, the backwash procedure includes the following steps:
Step 1, from water inlet, into filter, injected clear water, unlatching backwash water pump carry out backwash, the time of backwash process
For 15min.
After step 2, backwash, backwash water pump is closed, water outlet is opened by after the water discharge in filter, closes water outlet
Mouthful；Air valve door and blower are opened, air inlet intensity is controlled, carries out air bump rinse operation, is increased between filter medium using air
The impurity being attached on filter medium is peeled off in friction, strengthens backwash effect.The air bump rinse operation process is 5min.Air is wiped
After washing, according to step 1 backwash 5min, the impurity cleaned out is discharged.
Step 3, repeatedly step 2 detect that the water quality of discharge water reaches SDI≤5 up to the Water quality detector of water outlet, tie
Beam backwash procedure opens water inlet.
Further, cooling water pipe is distributed in ball milling bush seat, the cooling water in pond under the action of the first water pump,
Entered inside ball milling bush seat by cooling water pipe, carries out heat with the lubricating oil inside ball milling bush seat and ball milling bush seat
After exchange, then pond flow back by cooling water pipe.
Further, one end of heat exchanger is connect with ball milling bush seat by oil pipe and oil pump, and the other end passes through water
Pipe and the connection of the second water pump, the inside of heat exchanger is equipped with alternate oil pipe and cooling water pipe, right for carrying out heat exchange
Lubricating oil in ball milling bush seat carries out cooling processing, to cool down to ball milling bush seat；Cooling water in pond passes through
Cooling water pipe enters heat exchanger, while the lubricating oil in ball milling bush seat enters heat exchanger, cooling water by oil pipe
It carries out heat by alternate cooling water pipe and oil pipe in heat exchanger with the lubricating oil of high temperature to exchange, cooling lubricating oil
It is returned in ball milling bush seat by oil pipe and oil pump 7, the cooling water of heat absorption is returned in pond by cooling water pipe.
Further, cooling tower is connect by cooling water pipe with pond, for reducing the temperature of cooling water in pond, thus
Improve the cooling efficiency of water cooling system.Cooling water in pond is delivered in cooling tower by third water pump, make cooling water with
Air flowing contact, the heat dissipation in water is flowed back in pond into atmosphere, then through cooling water pipe.
Further, a water level sensor is set on the inner wall in the pond, to measure the water level in pond, works as water level
When being reduced to preset warning line, triggering cooling water adds device, injects cooling water to water cooling system, prevents because of water shortage
The cooling velocity of relieving system；The cooling water amount of storage in pond 3 is handed at least more than water cooling system in ball milling bush seat 8 and heat
Parallel operation 6 in cooling procedure needed for twice of cooling water.
Large-size ball mill water cooling system of the present invention also add ball milling temperature control system to ball milling temperature into
Row monitoring, further protects the large-size ball mill, avoids causing machine to damage because temperature is excessively high.
The ball milling temperature control system includes temperature controller, combined aural and visual alarm, electronic display and thermocouple.The present invention
Several thermocouple elements are set, are distributed in ball milling bush seat, directly to measure a watt seat temperature, and temperature signal are converted
Form for thermo-electromotive force signal is transmitted and is stored to electronic display 14, in order to which maintenance personnel understands above-mentioned water cooling in time
But the operating status of system；The temperature controller, combined aural and visual alarm, electronic display are connect with electroheat pair respectively；The temperature controller
Preset alarm temperature in 13, when watt seat temperature alarm temperature preset higher than temperature controller, combined aural and visual alarm is sounded an alarm, simultaneously
Ball milling electromechanical source is automatically cut off, keeps its out of service.
It further, is circuit connection between the temperature controller, combined aural and visual alarm, electronic display and thermocouple.
Compared with prior art, large-size ball mill water cooling system proposed by the present invention purifies the cooling water of injection
Processing can effective filter out impurity and mineral ion in new injection cooling water, avoid calcium in cooling water system, magnesium from
The sub- excessively high formation carbonate of isoconcentration blocks bearing shell cooling water pipe and heat exchanges water pipe.
Large-size ball mill water cooling system of the present invention, purification device is using double medium filters, the principle of quartz sand filtration
It is Intercepting effects, there is positive effect to the filtering of the insoluble matters such as particle, suspended matter in water, cooling water is by closely knit
Quartz sand filtration layer, undissolved impurity can be filtered in water, but cannot play obstruction to the mineral ion in water
Therefore activated carbon filter layer is arranged in the lower section of the quartz sand filtration layer, the micro- of flood tide is contained in the inside of active carbon in effect
Hole, these micropores have very strong adsorption capacity, can adsorb the impurity such as organic matter, colloid, the ion in water, and filter effect is aobvious
It writes.
Large-size ball mill water cooling system of the present invention, the cooling water pipe internal diameter that back washing device is fed back according to ultrasonic sensor
The filter effect for judging filter carries out backwash to filter, removes the impurity in filter, make when filtering ineffective
It restores filter effect.
Large-size ball mill water cooling system of the present invention is monitored ball milling bush seat temperature, when ball milling bush seat temperature
Higher than preset alarm temperature, acoustooptic alarm will sound an alarm prompt operator, while cut off ball milling electromechanical source, avoid height
Temperature damage ball milling bush seat, causes ball mill out of service, improves safety coefficient.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the structure chart of large-size ball mill water cooling system provided by the invention；
Fig. 2 is large-size ball mill temperature control system structure chart provided by the invention；
Fig. 3 is large-size ball mill purification device structure chart provided by the invention.
Specific embodiment
With reference to the accompanying drawings come describe invention preferred embodiment.It will be apparent to a skilled person that these
Embodiment is used only for explaining the technical principle of invention, not in the protection scope of limitation invention.
It should be noted that in the description of invention, the instructions such as term " on ", "lower", "left", "right", "inner", "outside"
The term of direction or positional relationship is direction based on the figure or positional relationship, this is intended merely to facilitate description, without
It is that indication or suggestion described device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is interpreted as the limitation to invention.
In addition it is also necessary to explanation, in the description of invention unless specifically defined or limited otherwise, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.To those skilled in the art, it can understand that above-mentioned term exists as the case may be
Concrete meaning in invention.
Refering to Figure 1, it is the structure chart of large-size ball mill water cooling system, the solid line table in figure between each structure
Show that water pipe, dotted line indicate oil pipe.Large-size ball mill water cooling system of the present invention includes ball milling body and water cooling system, wherein
The ball milling body includes: ball milling cylinder 10, ball milling bush seat 8, ball milling gear wheel 9；Wherein, it is studded with inside ball milling cylinder 10 resistance to
Material is ground, grinding material is used for, a hollow shaft is also equipped with inside the ball milling cylinder 10, for fixing and supporting the ball grinding cylinder
Body 10；Ball milling bush seat 8 is connected with the part that the hollow shaft exposes to ball milling cylinder 10, has lubrication in ball milling bush seat 8
Oil, for reducing the frictional force between the hollow shaft, there are also bearing shell cooling water pipes 81 for 8 inside of ball milling bush seat, for giving
Ball milling bush seat and lubricating oil cooling.
The water cooling system includes that cooling water adds device 1, purification device 2, pond 3, cooling tower 4 and heat exchanger 6,
And the heat exchanger cooling water pipe 61 inside heat exchanger 6, the purification device 2 include two identical filters
21,28 and two identical backwash water pumps 22,29；Pond 3 is divided for two parts: bearing shell cooling pond and heat exchanger water
Pond；The external of bearing shell cooling water pipe 81 is arranged the first ultrasonic sensor, the external setting of heat exchanger cooling water pipe 61 the
Two ultrasonic sensors reflect impurity thickness for measuring the internal diameter of respective cooling water pipe respectively.
Large-size ball mill purification device 2 provided by the invention includes two identical treatment facilities, herein with wherein one
It for a, please refers to shown in Fig. 3, the purification device includes: the filtering for filtering cooling impurities in water and mineral ion
Device 21；For the water inlet 27 of injected clear water, it is located at 21 top of filter, is connect with filter 21；Water outlet for draining
26, it is located at 21 bottom of filter, is connect with filter 21；A Water quality detector is arranged in the inside of water outlet 26, for the row of detection
The water quality of water outlet；It is connect respectively with filter 21 for the intake valve 24 of air inlet for the air outlet valve 23 of outlet；For to mistake
The blower 25 of conveying air, connect with intake valve 24 in filter 21, and the backwash water of the purification device for controlling clear water entrance
Pump 22, connect with filter 21；For the second backwash controller of 21 backwash process of controlling filter, it is located at 21 table of filter
Face.It is also identical with this comprising another treatment facilities in the purification device 2, this will not be repeated here.
It is connect specifically, device 1 is added with cooling water in one end of filter 21, the other end passes through cooling water pipe and pond 3
In heat exchanger pond connection；One end of filter 28 connect cooling water jointly with filter 21 and adds device 1, and the other end is logical
Supercooling water pipe is connect with the bearing shell cooling pond in pond 3.
Specifically, filter 21 and 28 is double medium filters, double medium filters include active carbon filtering
Layer and two kinds of filter medium of quartz sand filtration layer, quartz sand filtration layer is for stopping undissolved particulate contaminant in water, activity
Charcoal filter layer, which is used to adsorb, does not stop the impurity and the minerals such as colloid and calcium and magnesium ion of falling by quartz sand filtration layer, thus
Effectively reduce the impurity and mineral ion into water cooling system.Cooling water adds device 1 and injects cooling into filter 21,28
Water, when cooling water flows through dielectric layer, the mineral ions such as particle, suspended matter, colloid and calcium and magnesium ion in cooling water are situated between
Matter layer stops, after absorption, and cooling water is separately flowed into pond 3 by cooling water pipe.
The filter medium quartz sand particle diameter is usually in 0.35-0.55mm, and the quartz sand filtration layer is by quartz sand
It is tightly packed, undissolved particulate contaminant in drainage is crossed by Intercepting effects；The filter medium granularity of activated carbon is 8-30
Mesh, the activated carbon filter layer are filled by active carbon particle, are located at below quartz sand filtration layer, for adsorbing not by quartz sand mistake
Filtering layer stops the impurity and the minerals such as colloid and calcium and magnesium ion of falling.
Filter 21,28 stays in filter 21 and 28 by prolonged obstruction, adsorbing contaminant, impurity, so that filtering
Medium tends to be saturated, and influences filter effect, and impurity is easy to cause to enter water cooling system, blocks bearing shell cooling water pipe and heat is handed over
Parallel operation cooling water pipe causes cooling effect undesirable.Therefore, it is necessary to carry out backwash to filter 21,28, remove in filter medium
The impurity in portion realizes the Reusability of filter.
In the embodiment of the present invention, the first ultrasonic wave is arranged in the outer surface of the bearing shell cooling water pipe 81 inside ball milling bush seat 8
Sensor and a temperature sensor, internal diameter of the ultrasonic sensor to measure above-mentioned bearing shell cooling water pipe 81, the temperature
Degree sensor is passed the first ultrasonic sensor and temperature for detecting ball milling bush seat temperature, and in the way of wireless transmission
The information that sensor measures is transmitted to the first backwash controller.
The internal diameter information that the first backwash controller measures ultrasonic sensor in a period of time, according to following public affairs
Formula calculates backwash coefficient s,
Wherein, s indicates backwash coefficient, d0Indicate the initial inside diameter of cooling water pipe, r1、r2、r3It respectively indicates every by primary
T time, the cooling water pipe internal diameter that ultrasonic sensor measures, T0Indicate normal temperature when ball milling bush seat works normally, T1、
T2、T3It respectively indicates every by a t time, the surface temperature for the bearing shell cooling water pipe that temperature sensor measures, Vt expression time
Variable quantity, π is constant.
The threshold value U of the internal preset backwash coefficient of first backwash controller, when s exceeds the range of u, filter 28 starts
Backwash procedure.
The second ultrasonic sensor, institute is arranged in the outer surface of heat exchanger cooling water pipe 61 inside heat exchanger 6
Ultrasonic sensor is stated to measure the internal diameter of above-mentioned heat exchanger cooling water pipe 61, and is transmitted in the way of wireless transmission
To the second backwash controller, the impurity growth rate in cooling water pipe is judged by the speed that internal diameter changes.
The internal diameter information that the second backwash controller measures ultrasonic sensor in a period of time, according to following public affairs
Formula operation determines the growth rate k of impurity:
In formula, k indicates the growth rate of impurity in cooling water pipe, d0Indicate the initial inside diameter of cooling water pipe, d1、d2、d3
Respectively indicate every by a t time, the cooling water pipe internal diameter that ultrasonic sensor measures, the variable quantity of Vt expression time, π
For constant.
Ball milling bush seat is weaker to the tolerance of high temperature, when the temperature is excessively high, is easy to happen damage, and ball mill is caused to stop fortune
Row, influences working efficiency, therefore introduce temperature variable in the calculating process of the first backwash controller, when the temperature is excessively high to mistake
Filter 21 carries out backwash, further controls the temperature of ball milling bush seat, to realize the purpose of protection ball milling bush seat.
The embodiment of the present invention is using the internal diameter of ultrasonic sensor measurement cooling water pipe, and ultrasonic sensor is to solid, liquid
The penetration capacity of body is very strong, it is not easy to by the interference of external environment, have the advantages that accuracy is high, stability is good.
There are preset standard impurity growth rate k in second backwash controller0, the second backwash controller real-time reception
The internal diameter information of the heat exchanger cooling water pipe 61 and bearing shell cooling water pipe 81 that measure from the second ultrasonic sensor, passes through
Above-mentioned formula (1) carries out calculation process, obtains the impurity growth rate k every time tn, and by knWith preset value k0It makes comparisons,
Work as kn> k0When, show that impurity growth rate is too fast, filter tends to saturation state, is controlled close by the second backwash controller at this time
The water inlet that pond side is connect with filter 21 is closed, and starts backwash procedure.
Specifically, the backwash procedure includes the following steps:
Step 1, from water inlet 27, into filter 21, injected clear water, unlatching backwash water pump 22 carry out backwash, backwash process
Time be 15min.
After step 2, backwash, backwash water pump 22 is closed, water outlet 26 is opened by after the water discharge in filter, closes
Water outlet；Air valve door 24 and blower 25 are opened, air inlet intensity is controlled, carries out air bump rinse operation, increases filtering using air and is situated between
The impurity being attached on filter medium is peeled off in friction between matter, strengthens backwash effect.The air bump rinse operation process is
5min.After air bump rinse operation, according to step 1 backwash 5min, the impurity cleaned out is discharged.
Step 3, repeatedly step 2 detect that the water quality of discharge water reaches SDI≤5 up to the Water quality detector of water outlet, tie
Beam backwash procedure opens water inlet 27.
Please continue to refer to shown in Fig. 1, pond 3 is connect by the first water pump 51 and cooling water pipe with ball milling bush seat 8, is used
To be cooled down to ball milling bush seat 8, avoids ball milling bush seat 8 from damaging because temperature is excessively high, cause ball mill can not
It works normally.
Specifically, bearing shell cooling water pipe 81 is distributed in ball milling bush seat 8, the cooling water in pond 3 is in the first water pump
Under the action of 51, entered inside ball milling bush seat 8 by cooling water pipe, inside ball milling bush seat 8 and ball milling bush seat 8
After lubricating oil carries out heat exchange, then pond 3 flow back by cooling water pipe.It will be appreciated by persons skilled in the art that institute
Stating bearing shell cooling water pipe 81 can be distributed inside ball milling bush seat 8 by serpentine or " H " shape, need to only make its connecing with lubricating oil
Contacting surface product is as big as possible.
Specifically, one end of heat exchanger 6 is connect with ball milling bush seat 8 by oil pipe and oil pump 7, the other end passes through
Water pipe and the connection of the second water pump 52, the inside of heat exchanger 6 are equipped with alternate oil pipe and heat exchanger cooling water pipe 61, use
In carrying out heat exchange, cooling processing is carried out to the lubricating oil in ball milling bush seat, to cool down to ball milling bush seat 8；
Cooling water in pond 3 enters heat exchanger 6 by cooling water pipe, while the lubricating oil in ball milling bush seat 8 passes through oil pipe
Into heat exchanger 6, the lubricating oil of cooling water and high temperature passes through alternate heat exchanger cooling water in heat exchanger 6
Pipe 61 and oil pipe carry out heat exchange, and cooling lubricating oil is returned in ball milling bush seat 8 by oil pipe and oil pump 7, heat absorption it is cold
But water is returned in pond 3 by cooling water pipe.It is understood that the liquid radiating pipeline that those skilled in the art usually adopt,
It can be used in the present embodiment for carrying out the bearing shell cooling water pipe 81 and 61 of heat exchange.
Specifically, cooling tower 4 by cooling water pipe respectively in pond 3 bearing shell cooling pond and heat exchanger water
Pond connection, for reducing the temperature of cooling water in pond 3, to improve the cooling efficiency of the water cooling system.In pond 3
Cooling water is delivered in cooling tower by third water pump 53, is flowed cooling water with air and is contacted, extremely by the heat dissipation in water
It in atmosphere, then is flowed back in pond 3 by cooling water pipe, to achieve the purpose that cooling water temperature.Those skilled in the art can
With understanding, cooling tower can be counterflow cooling tower, cross flow cooling tower, mixed-flow cooling tower, can be realized to cooling
Water cooling.
Specifically, the cooling tower 4 is double helix cooling tower, the bearing shell cooling pond and heat exchanger cooling water
Cooling water in pond respectively enters in double helix cooling tower 4, is not in contact with each other during cooling in cooling tower, cooling to terminate to lead to
Supercooling water pipe separately flows into bearing shell cooling pond and heat exchanger cooling pond.
During cooling water flows contact with air in cooling tower 4, it is easy to evaporate, the chilled water in pond
It reduces, therefore, a water level sensor is set on the inner wall in pond 3, to measure the water level in pond 3, when water level is reduced to
When preset warning line, triggering cooling water adds device 1, injects cooling water to water cooling system, prevents from slowing down because of water shortage
The cooling velocity of system；
The cooling water amount of storage in pond 3 is at least more than water cooling system in ball milling bush seat 8 and heat exchanger 6 in cooling
Twice of required cooling water in the process, to guarantee while the cooling water in pond 3 enters cooling tower 4 and cooled down, water
Cooling system does not stop the cooling to ball milling bush seat.It will be appreciated by persons skilled in the art that the arrangement of above-mentioned each structure,
It is adjusted according to practical service environment and space size, need to only meet can be realized continuous productive process and can reduce space as far as possible
?.
Large-size ball mill water cooling system described in the embodiment of the present invention also adds ball milling temperature control system to ball milling
Temperature is monitored, and further protects the large-size ball mill, avoids causing machine to damage because temperature is excessively high.
It please refers to shown in Fig. 2, the ball milling temperature control system includes temperature controller 13, combined aural and visual alarm 12, electronical display
Screen 14 and thermocouple 11.
Specifically, 6 thermocouple elements are arranged in the embodiment of the present invention, it is distributed in ball milling bush seat 8, directly to survey
Watt seat temperature is measured, and the form that temperature signal is converted to thermo-electromotive force signal is transmitted and is stored to electronic display 14, so as to
The operating status of above-mentioned water cooling system is understood in time in maintenance personnel；Preset alarm temperature in the temperature controller 13, when a watt seat
When temperature is higher than temperature controller preset alarm temperature, combined aural and visual alarm is sounded an alarm, while automatically cutting off ball milling electromechanical source, makes it
It is out of service.It is circuit connection between the temperature controller 13, combined aural and visual alarm 12, electronic display 14 and thermocouple 11.
The present invention is handled by cooling water of the purification device to injection water cooling system, as far as possible reduction calcium, magnesium
The concentration of ion, meanwhile, in the variation feedback cooling water pipe using cooling water pipe internal diameter in ball milling bush seat and heat exchanger
Impurity thickness change when filter is ineffective, filter is carried out in time anti-to reflect the filter effect of filter
It washes, a large amount of impurity is avoided to enter water cooling system, efficiently solve and cause asking for cooling effect variation because of cooling water pipe blocking
Topic.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of large-size ball mill water cooling system characterized by comprising water cooling system, ball milling body and ball milling temperature
Control system, wherein the ball milling body includes:
For the ball milling cylinder of grinding material, the ball milling inner barrel studs with wear-resistant material, and the ball milling inner barrel is also
One hollow shaft；
For protecting and fixing the ball milling bush seat of the hollow shaft, the ball milling bush seat and the hollow shaft expose to described
The part of ball milling cylinder is connected, and the ball milling bush seat is internally provided with bearing shell cooling water pipe；
The first ultrasonic sensor, the heat exchange is arranged in the outer surface of bearing shell cooling water pipe inside the ball milling bush seat
The second ultrasonic sensor is arranged in the outer surface of heat exchanger cooling water pipe inside device, to measure above-mentioned two cooling water pipe
Internal diameter, the surface of the bearing shell cooling water pipe also sets up a temperature sensor, for monitoring the temperature on bearing shell cooling water pipe surface
Degree variation；
For being driven the ball milling cylinder, make the ball milling gear wheel of the ball milling barrel body rotation, the ball milling gear wheel is annulus
Shape covers outside the ball grinding cylinder body；
The water cooling system includes:
Cooling water for adding from cooling water to water cooling system adds device；
For being filtered to particle, suspended matter, colloidal impurity and the calcium and magnesium ion mineral ion in the cooling water added
Purification device；
For storing the pond of cooling water；
Cooling tower for reducing cooling water temperature in pond and the heat exchanger for cutting oil, the heat exchange
Device is internally provided with heat exchanger cooling water pipe；
The ball milling temperature control system includes:
For monitoring the temperature controller of ball milling bush seat temperature；
For prompting abnormal combined aural and visual alarm；
Thermocouple for the electronic display of visualizing monitor data and for measuring ball milling bush seat temperature；
Two sets of following structures are arranged in the purification device, are respectively used to control ball milling bush seat cooling water and heat exchanger is cooling
Water, comprising:
For filtering the filter of cooling impurities in water and mineral ion；
For the water inlet of injected clear water, it is located at filter top, is connected to the filter；
For the water outlet of draining, it is located at filter bottom, is connected to the filter, a water quality detection is arranged in the inside of water outlet
Device, for detecting the water quality of discharge water；
It is connected to the filter respectively for the intake valve of air inlet for the air outlet valve of outlet；
For conveying the blower of air into filter, it is connect with intake valve；
For controlling the backwash water pump of the purification device of clear water entrance, it is connected to the filter；
For controlling the first backwash controller and the second backwash controller of backwash process, it is located at filter surfaces；
Bearing shell cooling water pipe that the first backwash controller measures the first, second ultrasonic sensor in a period of time and
The internal diameter information of heat exchanger cooling water pipe calculates backwash coefficient s according to following formula,
Wherein, s indicates backwash coefficient, d0Indicate the initial inside diameter of cooling water pipe, r1、r2、r3When respectively indicating t of every process
Between, the cooling water pipe internal diameter that ultrasonic sensor measures, T0Indicate normal temperature when ball milling bush seat works normally, T1、T2、
T3T time of every process, the surface temperature for the bearing shell cooling water pipe that temperature sensor measures are respectively indicated, Vt indicates the time
Variable quantity, π are constant；
The internal diameter information that the second backwash controller measures the first, second ultrasonic sensor in the Vt time, is pressed respectively
According to following formula operation, the growth rate k of impurity is determined:
In formula, k indicates the growth rate of impurity in cooling water pipe, d0Indicate the initial inside diameter of cooling water pipe, d1、d2、d3Table respectively
Show t time of every process, the cooling water pipe internal diameter that ultrasonic sensor measures, Vt indicates the variable quantity of time, and π is constant；
There are preset standard impurity growth rate k in the second backwash controller0, the second backwash controller real-time reception
Internal diameter information from the first ultrasonic sensor, the cooling water pipe that the second ultrasonic sensor measures and cooling water pipe, passes through
Above-mentioned formula (2) carries out calculation process, obtains the impurity growth rate k every time tn, and by knWith preset value k0It makes comparisons,
Work as kn> k0When, the water inlet that pond side is connected to the filter is closed in the second backwash controller control, and starts backwash journey
Sequence.
2. large-size ball mill water cooling system according to claim 2, which is characterized in that one end of the filter with it is cold
But water adds device connection, and the other end is connect by cooling water pipe with pond, and the filter is double medium filters, and described pair is situated between
Mass filter includes two kinds of filter mediums of active carbon and quartz sand.
3. large-size ball mill water cooling system according to claim 2, which is characterized in that the filter medium quartz sand
Grain diameter is 0.35-0.55mm, and the filter medium granularity of activated carbon is 8-30 mesh, and the activated carbon filter layer is located at quartz sand
Below filter layer, the impurity fallen and colloid and calcium and magnesium ion minerals are not stopped by quartz sand filtration layer for adsorbing.
4. large-size ball mill water cooling system according to claim 1, the backwash procedure include the following steps:
Step 1, from water inlet, into filter, injected clear water, unlatching backwash water pump progress backwash, the time of backwash process are
15min；
After step 2, backwash, backwash water pump is closed, water outlet is opened by after the water discharge in filter, closes water outlet；
Air valve door and blower are opened, air inlet intensity is controlled, carries out air bump rinse operation, increases rubbing between filter medium using air
It wipes, the impurity being attached on filter medium is peeled off, strengthen backwash effect, the air bump rinse operation process is 5min, air bump rinse operation
After, according to step 1 backwash 5min, the impurity cleaned out is discharged；
Step 3 repeats step 2 until the Water quality detector of water outlet detects that the water quality of discharge water reaches SDI≤5, and end is anti-
Washing procedure opens water inlet.
5. large-size ball mill water cooling system according to claim 1, which is characterized in that the bearing shell cooling water pipe distribution
In the ball milling bush seat, for being cooled down to the lubricating oil inside the ball milling bush seat and ball milling bush seat.
6. large-size ball mill water cooling system according to claim 1, which is characterized in that one end of the heat exchanger
It is connect with ball milling bush seat by oil pipe and oil pump, the other end is connected by cooling water pipe and the second water pump, heat exchanger
Inside is equipped with alternate oil pipe and cooling water pipe and cools down for carrying out heat exchange to the lubricating oil in ball milling bush seat
Processing.
7. large-size ball mill water cooling system according to claim 1, which is characterized in that the cooling tower is that double helix is cold
But tower, the cooling water in the bearing shell cooling pond and heat exchanger cooling pond respectively enter in double helix cooling tower,
It is not in contact with each other during cooling in cooling tower, for reducing the temperature of cooling water in pond.
8. large-size ball mill water cooling system according to claim 1, which is characterized in that the side setting two in the pond
A water inlet to be opened/closed is connected with purification device by cooling water pipe, a level sensor is arranged on the inner wall in the pond
Device, to measure the water level in pond.
9. large-size ball mill water cooling system according to claim 1, which is characterized in that the ball milling temperature control system
Including temperature controller, combined aural and visual alarm, electronic display and thermocouple.The thermocouple is distributed in ball milling bush seat, to
Watt seat temperature is directly measured, and the form that temperature signal is converted to thermo-electromotive force signal is transmitted and is stored to electronic display,
The temperature controller, combined aural and visual alarm, electronic display are connect with electroheat pair respectively；Preset alarm temperature in the temperature controller；Institute
Stating between temperature controller, combined aural and visual alarm, electronic display and thermocouple is circuit connection.
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| CN202139137U (en) * | 2011-06-07 | 2012-02-08 | 河南中孚实业股份有限公司 | Reverse-osmosis circulating water production device for electrolysis enterprise |
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