CN206229063U - A kind of concentrate pulp high-efficiency filtration systems - Google Patents
A kind of concentrate pulp high-efficiency filtration systems Download PDFInfo
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- CN206229063U CN206229063U CN201621281094.5U CN201621281094U CN206229063U CN 206229063 U CN206229063 U CN 206229063U CN 201621281094 U CN201621281094 U CN 201621281094U CN 206229063 U CN206229063 U CN 206229063U
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Abstract
The utility model is related to a kind of concentrate pulp high-efficiency filtration systems, and in the concentrate pulp filtration system for not setting concentrate underflow agitator, the chemical feeding points of filter aid are arranged on after the concentrate big well of concentration；In the concentrate pulp filtration system of concentrate underflow agitator is provided with, the chemical feeding points of filter aid are arranged on after concentrate underflow agitator；Filter aid chemicals dosing plant is made up of filter aid holding vessel, filter aid feeding pump and the filter aid head tank being sequentially connected, and is controlled by Automatic Dosage Control of Additives system；Flow of slurry scale, filter aid flowmeter, motor-driven valve and the solenoid valve block that Automatic Dosage Control of Additives system is connected by control device and respectively with control system into；The utility model rationally sets filter aid chemical feeding points, and control chemical feeding quantity by Automatic Dosage Control of Additives system according to different concentrate pulp filtration systems；So as to greatly improve concentrate pulp filter efficiency, filter cake moisture content is reduced.
Description
Technical field
The utility model is related to slurry filtration and sludge press filtration technical field, more particularly to it is a kind of be applied to iron ore, aluminium ore,
Colliery or the concentrate pulp high-efficiency filtration systems of other slurry filtrations and sludge press filtration process.
Background technology
In iron ore concentrate ore dressing process, the filtering of concentrate pulp is the important process factor in ore dressing process, and it is to iron essence
The production cost of ore deposit, the quality of iron ore concentrate can all play critically important effect.
In existing ore-dressing technique, powder particle size degree of refinement and fine granularity miberal powder proportion are continuously increased after ore grinding,
After reverse flotation roughing drop that other miberal powder passes through is miscellaneous, resulting in concentrate pulp becomes thinner, more tacky, and essence mine dehydration task difficulty adds
Greatly, filter efficiency reduction.If filter cake moisture is more than 12%, concentrate transportation system easily blocks, to production system just
Often operation brings adverse effect.In existing concentrate pulp dewatering process, raising filtering effect can only be reached by adding filter aid
Rate, reduces filter cake moisture, reduces the purpose of investment in technological transformation, and meets moisture requirement of the postorder operation to concentrate.
Filter aid is the medicament for reducing filter cake moisture, improving filter efficiency, and its Main Function is：1) flocculation is played
Effect, makes short grained mineral become bulky grain, and increase water penetration prevents tiny mineral from blocking filter cloth simultaneously.2) concentrate ore deposit is reduced
The viscosity of slurry, increases the mobility of concentrate pulp, advantageously in filtering.
In technology disclosed in existing document, the set-up mode of filter aid chemical feeding points has following 3 kinds：1) it is arranged on concentrate pulp
Chute；2) it is arranged on concentrate underflow agitator mine-separating box；3) it is arranged on concentrate underflow agitator top.This 3 kinds of chemical feeding points are set
Mode has following defect：Before being arranged at concentrate pulp agitator due to chemical feeding points, can cause to flocculate into big
The ore pulp of grain is dispersed as little particle again after concentrate underflow agitator is entered, and original effect is lost, so as to largely effect on
Filter efficiency.
The content of the invention
The utility model provides a kind of concentrate pulp high-efficiency filtration systems, by rationally setting filter aid chemical feeding points, and
Chemical feeding quantity is controlled by Automatic Dosage Control of Additives system；So as to greatly improve concentrate pulp filter efficiency, filter cake moisture content is reduced.
In order to achieve the above object, the utility model is realized using following technical scheme：
A kind of concentrate pulp high-efficiency filtration systems, including：
1) concentrate pulp filtration system concentrates big well, concentrate underflow pump, essence by the concentrate pulp chute that is sequentially connected, concentrate
Ore deposit underflow filter mine-separating box and vacuum filter are constituted；The overfall of vacuum filter and concentrate underflow filter mine-separating box leads to
Cross overflow pipe connection concentrate pulp chute；Filter aid chemicals dosing plant used is by the filter aid holding vessel, the filter aid that are sequentially connected
Feeding pump and filter aid head tank are constituted；Filter aid head tank connects each chemical feeding points by drug feeding pipeline；Chemical feeding points include：A. it is smart
On the ore pulp delivery duct that ore deposit concentrates between big well and concentrate underflow pump, b. concentrate underflow pump and concentrate underflow filter mine-separating box
Between ore pulp delivery duct on, c. concentrate underflow filters mine-separating box, d. concentrate underflow filtering mine-separating box and vacuum filter
Between ore pulp delivery duct on；A~c chemical feeding points can be set alone or in combination, be arranged as required to 1~4；Filter aid dosing
Device is controlled by Automatic Dosage Control of Additives system；
2) concentrate pulp filtration system by the concentrate pulp chute that is sequentially connected, concentrate concentrate big well, concentrate underflow pump A,
Concentrate underflow agitator mine-separating box, concentrate underflow agitator, concentrate underflow pump B, concentrate underflow filter mine-separating box and vacuum mistake
Filter is constituted；The overfall of vacuum filter and concentrate underflow filter mine-separating box connects concentrate pulp stream by overflow pipe
Groove；Filter aid chemicals dosing plant used is made up of filter aid holding vessel, filter aid feeding pump and the filter aid head tank being sequentially connected；
Filter aid head tank connects each chemical feeding points by drug feeding pipeline；Chemical feeding points include a. concentrate underflow agitators and concentrate underflow pump B
Between ore pulp delivery duct on, on the ore pulp delivery duct between b. concentrate underflow pump B and concentrate underflow filter mine-separating box,
C. on the ore pulp delivery duct between concentrate underflow filter mine-separating box, d. concentrate underflow filtering mine-separating box and vacuum filter；a
~c chemical feeding points can be set alone or in combination, be arranged as required to 1~4；Filter aid chemicals dosing plant passes through Automatic Dosage Control of Additives system
System control；
3) concentrate pulp filtration system concentrates big well, concentrate underflow pump by the concentrate pulp chute by being sequentially connected, concentrate
A, concentrate underflow agitator mine-separating box, concentrate underflow agitator, concentrate underflow pump B and plate and frame filter press composition；Plate and frame filter press
Overfall by overflow pipe connect concentrate pulp chute；Filter aid chemicals dosing plant used is stored by the filter aid being sequentially connected
Tank, filter aid feeding pump and filter aid head tank composition；Filter aid head tank connects each chemical feeding points by drug feeding pipeline；Chemical feeding points
Including on the ore pulp delivery duct between a. concentrate underflow agitators and concentrate underflow pump B, b. concentrate underflow pump B and plate compression
On ore pulp delivery duct between machine；A, b chemical feeding points can be set alone or in combination, be arranged as required to 1~2；Filter aid adds
Medicine device is controlled by Automatic Dosage Control of Additives system.
Flow of slurry scale, filter aid that the Automatic Dosage Control of Additives system is connected by control device and respectively with control device
Flowmeter, motor-driven valve and solenoid valve block into；Set gradually in drug feeding pipeline between filter aid head tank and chemical feeding points magnetic valve,
Motor-driven valve and filter aid flowmeter, and magnetic valve and motor-driven valve set be located proximate to filter aid head tank；Vacuum filter or
Flow of slurry scale is set on ore pulp delivery duct before plate and frame filter press.
Float switch is set in the filter aid head tank, float switch links with filter aid feeding pump, for controlling drainage
Liquid level in agent head tank.
The chemical feeding points can set multiple points of chemical feeding points.
The control device is PLC or computer.
Compared with prior art, the beneficial effects of the utility model are：
1) different chemical feeding points positions are set according to different filtration systems, is not setting the concentrate ore deposit of concentrate underflow agitator
In slurry filtration system, the chemical feeding points of filter aid are arranged on after the concentrate big well of concentration；It is being provided with the concentrate of concentrate underflow agitator
In slurry filtration system, the chemical feeding points of filter aid are arranged on after concentrate underflow agitator, prevent the ore deposit of the bulky grain after flocculation
Slurry is dispersed as little particle again after concentrate underflow agitator is entered, so as to improve filter efficiency, reduces filter cake moisture content；
2) one-point or multi-point dosing can be set as needed, continuous dosing amount is controlled by Automatic Dosage Control of Additives system, protect
The mixing match of card filter aid and concentrate pulp, and both are well mixed；
3) in Automatic Dosage Control of Additives system, by the way of motor-driven valve and magnetic valve are combined, it is to avoid when motor-driven valve is because of reaction
Between slow there is time delay dosing phenomenon, it is ensured that optimal dosing effect.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the structural representation of the utility model embodiment two.
Fig. 3 is the structural representation of the utility model embodiment three.
In figure：1. the concentrate of concentrate pulp chute 2. concentrates the big concentrate underflow filter of 3. concentrate underflow pump of well 4. point ore deposit
The filter aid head tank of 5. vacuum filter of case, 6. 7. filter aid holding vessel of filter aid discharging pump, 8. drainage machine feeding pump 9.
10. the filter aid stream of 11. 14. motor-driven valve of filter aid head tank overflow pipe 12. control device, 13. magnetic valve of float switch 15.
The concentrate underflow agitator of 16. flow of slurry scale of scale, 17. concentrate underflow pump A, 18. concentrate underflow agitator mine-separating boxs 19.
20. concentrate underflow pump B 21. plate and frame filter press, 22. flood pump, 23. points of ore deposit motor-driven valves
Specific embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
A kind of concentrate pulp high-efficiency filtration systems described in the utility model, specifically include：
1) as shown in figure 1, concentrate pulp filtration system by the concentrate pulp chute 1, concentrate that is sequentially connected concentrate big well 2,
Concentrate underflow pump 3, concentrate underflow filter mine-separating box 4 and vacuum filter 5 are constituted；Vacuum filter 5 and concentrate underflow are filtered
The overfall of machine mine-separating box 4 connects concentrate pulp chute 1 by overflow pipe；Filter aid chemicals dosing plant used is by being sequentially connected
Filter aid holding vessel 7, filter aid feeding pump 8 and filter aid head tank 9 are constituted；Filter aid head tank 9 is connected by drug feeding pipeline
Each chemical feeding points；Chemical feeding points include：A. concentrate concentrate on the ore pulp delivery duct between big well 2 and concentrate underflow pump 3, b. concentrate it is dense
On ore pulp delivery duct between stock pump 4 and concentrate underflow filter mine-separating box 4, c. concentrate underflow filters mine-separating box 4, d. essence
Ore deposit underflow is filtered on the ore pulp delivery duct between mine-separating box 4 and vacuum filter 5；A~c chemical feeding points can set alone or in combination
Put, be arranged as required to 1~4；Filter aid chemicals dosing plant is controlled by Automatic Dosage Control of Additives system；
2) as shown in Fig. 2 concentrate pulp filtration system by the concentrate pulp chute 1, concentrate that is sequentially connected concentrate big well 2,
Concentrate underflow pump A17, concentrate underflow agitator mine-separating box 18, concentrate underflow agitator 19, concentrate underflow pump B20, concentrate underflow
Filter mine-separating box 4 and vacuum filter 5 are constituted；The overfall of vacuum filter 5 and concentrate underflow filter mine-separating box 4 passes through
Overflow pipe connection concentrate pulp chute 1；Filter aid chemicals dosing plant used is by the filter aid holding vessel 7, filter aid that is sequentially connected
Feeding pump 8 and filter aid head tank 9 are constituted；Filter aid head tank 9 connects each chemical feeding points by drug feeding pipeline；Chemical feeding points include a.
On ore pulp delivery duct between concentrate underflow agitator 19 and concentrate underflow pump B20, b. concentrate underflow pump B20 and concentrate underflow
On ore pulp delivery duct between filter mine-separating box 4, a c. concentrate underflow filters mine-separating box 4, d. concentrate underflow filtering point ore deposit
On ore pulp delivery duct between case 4 and vacuum filter 5；A~c chemical feeding points can be set alone or in combination, be arranged as required to 1
~4；Filter aid chemicals dosing plant is controlled by Automatic Dosage Control of Additives system；
3) as shown in figure 3, concentrate pulp filtration system concentrates big well by the concentrate pulp chute 1, concentrate by being sequentially connected
2nd, concentrate underflow pump A17, concentrate underflow agitator mine-separating box 18, concentrate underflow agitator 19, concentrate underflow pump B20 and sheet frame pressure
Filter 21 is constituted；The overfall of plate and frame filter press 21 connects concentrate pulp chute 1 by overflow pipe；Filter aid dosing dress used
Filter aid holding vessel 7, filter aid feeding pump 8 and filter aid head tank 9 by being sequentially connected is put to constitute；Filter aid head tank 9 leads to
Cross drug feeding pipeline and connect each chemical feeding points；Chemical feeding points include the ore pulp between a. concentrate underflows agitator 19 and concentrate underflow pump B20
On ore pulp delivery duct on conveyance conduit, between b. concentrate underflow pump B20 and plate and frame filter press 21；A, b chemical feeding points can be independent
Or combination is set, and is arranged as required to 1~2；Filter aid chemicals dosing plant is controlled by Automatic Dosage Control of Additives system.
As shown in Figure 1-Figure 3, the Automatic Dosage Control of Additives system is connected by control device 12 and respectively with control device 12
Flow of slurry scale 16, filter aid flowmeter 15, motor-driven valve 14 and magnetic valve 13 constitute；Filter aid head tank 9 and chemical feeding points it
Between drug feeding pipeline on set gradually magnetic valve 13, motor-driven valve 14 and filter aid flowmeter 15, and magnetic valve 13 and motor-driven valve 14
What is set is located proximate to filter aid head tank 9；Ore deposit is set on ore pulp delivery duct before vacuum filter 5 or plate and frame filter press 21
Slurry flowmeter 16.
Filter aid Automatic Dosage Control of Additives process is as follows：
1) before filter aid dosing, flow is set according to filter aid, motor-driven valve 14 is opened to corresponding aperture；Magnetic valve 13 is in
Closed mode；
2) during filter aid dosing, flow of slurry scale 16 detected ore pulp flow through i.e. reading be more than zero when, by signal transmission
To in control device 12, the control magnetic valve 13 of control device 12 is opened；Filter aid in filter aid head tank 9 passes through drug feeding pipeline
Flow to each chemical feeding points；The flow of the real-time detection concentrate pulp of flow of slurry scale 16, and institute's flow measurement value is sent to control
In device 12；According to preset reduction formula, control device 12 calculates corresponding filter aid flow theory add value automatically, and
The value is converted into control signal to be sent in motor-driven valve 14, motor-driven valve 14 adjusts the real-time traffic of filter aid accordingly；Filter aid
During measured filter aid real-time flow data is fed back to control device 12 by flowmeter 16 again, filter aid is realized in so circulation
The real-time control of flow；
3) after filter aid dosing terminates, motor-driven valve 14 is closed；The reading for treating flow of slurry scale 16 is zero, then wait 10 seconds with
The upper time, it was then shut off magnetic valve 13；Motor-driven valve 14 is reopened again, is ready for the process of filter aid dosing next time.
Float switch 10 is set in the filter aid head tank 9, float switch 10 links with filter aid feeding pump 8, for controlling
Liquid level in filter aid head tank 9 processed.
The chemical feeding points can set multiple points of chemical feeding points, and each chemical feeding points or a point filter aid added by chemical feeding points can also may be used with identical
With difference.
The control device 12 is PLC or computer.
The Chinese patent of Application No. 87202472 discloses a kind of " floatation system dispersion multiple spot automatic medicine adding apparatus ", uses
Flotation agent is added when coal preparation plant carries out flotation operation；It is " by electromagnetic flowmeter and ore pulp on raw ore slurry supplied materials pipeline
Densimeter is constituted, also including one be used on the total main road of loading to determine the throttling differential pressure flowmeter of medicament tiny flow quantity,
Microprocessor and some loading branch lines branched out from the total main road direction floatation system of loading, in every loading branch
Several chemical feeding points set on pipeline ".The technical scheme is used to monitor the electromagnetic flowmeter of mineral slurry flux and for monitoring ore deposit
The ore pulp concentration meter for starching concentration is arranged on raw ore slurry supplied materials pipeline, therefore can only monitor the mineral slurry flux in ore pulp house steward
And concentration；Throttling differential pressure flowmeter for monitoring medicament flow is arranged on the total main road of loading, therefore can only monitor to add
Medicament flow in medicine house steward；System sets a medicine ore deposit ratio after the flow signal and concentration signal for obtaining floating raw ore slurry
Example coefficient signal, is multiplied through multiplier, a Setting signal for being proportional to additive amount of medicament needed for floating dry mine content is obtained, with section
The actual dose addition signal of stream differential pressure flowmeter output is compared, and its deviation signal is through PID regulator and analog-to-digital conversion
Device, obtains the pulse signal of corresponding frequencies, drives monostable switch control dosing magnetic valve dosing by the ratio of the required.And specific to
The chemical feeding quantity size of each chemical feeding points can only be by technological requirement pro rate, that is, when setting floatation system chemical feeding quantity as 1, then each adds
The allocation proportion of snack made with traditional Chinese medicines is the coefficient less than 1, and its summation is 1.Limited by technical conditions at that time, the technical scheme structure is answered
It is miscellaneous, and each chemical feeding points can only be by technological requirement pro rate chemical feeding quantity, although realize the close-loop automatic adjustment of dosing, but its
Comparatively the levels of precision of dosing can only be.
The utility model is to set magnetic valve, motor-driven valve successively in drug feeding pipeline between filter aid head tank and chemical feeding points
With filter aid flowmeter, flow of slurry scale is set on the ore pulp delivery duct between vacuum filter or plate and frame filter press, therefore
Mineral slurry flux and drainage agent flux to flowing into each filter plant can accurately be monitored, regulated and controled in time.Its simple structure, reaction
Rapidly, adjust accurate.Simultaneously by way of motor-driven valve is combined with magnetic valve, it is to avoid motor-driven valve occurs time delay slowly because of the reaction time
Dosing phenomenon, it is ensured that optimal dosing effect.
Following examples are implemented under premised on technical solutions of the utility model, give detailed implementation method
With specific operating process, but protection domain of the present utility model is not limited to following embodiments.Side used in following embodiments
Method is conventional method unless otherwise instructed.
【Embodiment 1】
As shown in figure 1, in the present embodiment, concentrate pulp filtration system is dense by the concentrate pulp chute 1, concentrate being sequentially connected
Contract big well 2, concentrate underflow pump 3, concentrate underflow filter mine-separating box 4 and vacuum filter 5 is constituted；Vacuum filter 5 and concentrate
The overfall of underflow filter mine-separating box 4 connects concentrate pulp chute 1 by overflow pipe, and flood pump 22 is set on overflow pipe.
Iron ore concentrate concentration is that 20% or so iron ore concentrate ore pulp enters concentrate and concentrates big well 2 by concentrate pulp chute 1, in essence
Ore deposit is concentrated in big well 2, and after going water process through overflow, concentrate concentration big well 2 underflow obtains the concentrate pulp that concentration is more than 60%,
Concentrate pulp is directly sent to clear ore deposit underflow filter mine-separating box 4 in the presence of concentrate underflow pump 3 through ore pulp delivery duct, then divides
It is sent to filtering in 3 groups of vacuum filters 5；The overflowing liquid of vacuum filter 5 and concentrate underflow filter mine-separating box 4 is pumped through overflow
Return to concentrate pulp chute 1.
Filter aid chemicals dosing plant used by the present embodiment by be sequentially connected filter aid holding vessel 7, filter aid feeding pump 8 and help
Filtering agent head tank 9 is constituted；Filter aid holding vessel 9 is by filter aid discharging pump 6 from the tank car loading and unloading material for transporting filter aid.Filter aid
Head tank 9 connects each chemical feeding points by drug feeding pipeline.The overfall of filter aid head tank 9 passes through filter aid head tank overflow pipe 11
Connection filter aid holding vessel 7.
In routine techniques, in the concentrate pulp filtration system of concentrate underflow agitator 19 is not provided with, filter aid dosing
Point is generally located on concentrate pulp chute 1, but in the concentrate concentration process for and then carrying out, can cause a large amount of streams of filter aid
Lose, not only result in the wasting of resources, cost is raised, and cause the follow-up filter efficiency to reduce.The utility model is by chemical feeding points
It is arranged on ore pulp delivery duct or equipment that concentrate is concentrated after big well 2, the loss of filter aid can be avoided.
As shown in figure 1, in the present embodiment, concentrate underflow filter mine-separating box 4 connects 3 groups of vacuum by ore pulp delivery duct
Filter 5, chemical feeding points set 1, that is, be arranged on the ore deposit between concentrate underflow filter mine-separating box 4 and each group vacuum filter 5
On slurry conveyance conduit, flow of slurry scale 16 and point ore deposit motor-driven valve 23 are provided with the ore pulp delivery duct simultaneously, point ore deposit motor-driven valve 23
With the control system interlocked control of vacuum filter 5.
【Embodiment 2】
As shown in Fig. 2 the concentrate pulp filtration system of the present embodiment is dense by the concentrate pulp chute 1, concentrate being sequentially connected
Contract big well 2, concentrate underflow pump A17, concentrate underflow agitator mine-separating box 18, concentrate underflow agitator 19, concentrate underflow pump B20,
Concentrate underflow filter mine-separating box 4 and vacuum filter 5 are constituted；Vacuum filter 5 and concentrate underflow filter mine-separating box 4 overflow
Head piece connects concentrate pulp chute 1 by overflow pipe；In the present embodiment, 2 groups of concentrate underflow agitators 19 and 3 groups of vacuum are provided with
Filter 5.
Iron ore concentrate concentration is that 20% or so iron ore concentrate ore pulp enters concentrate and concentrates big well 2 by concentrate pulp chute 1, in essence
Ore deposit is concentrated in big well 2, and after going water process through overflow, concentrate concentration big well 2 underflow obtains the concentrate pulp that concentration is more than 60%.
Concentrate pulp enters concentrate underflow agitator 19 in the presence of concentrate underflow pump A17 through concentrate underflow agitator mine-separating box 18,
It is agitated it is temporary after, be delivered to concentrate underflow filter mine-separating box through ore pulp delivery duct in the presence of concentrate underflow pump B20
4, then be delivered to vacuum filter 5 through ore pulp delivery duct and filter.
In the present embodiment, filter aid chemicals dosing plant by be sequentially connected filter aid holding vessel 7, filter aid feeding pump 8 and help
Filtering agent head tank 9 is constituted；Filter aid head tank 9 connects each chemical feeding points by drug feeding pipeline.
In routine techniques, the chemical feeding points for being provided with the concentrate pulp filtration system of concentrate underflow agitator 19 are generally arranged at essence
On ore deposit ore pulp chute 1, concentrate underflow agitator 19 or concentrate underflow agitator mine-separating box 18；But flocculate into the ore deposit of bulky grain
Slurry is dispersed as little particle again after agitation, and effect of filtering agent is had a greatly reduced quality, and causes filter efficiency to reduce.
In the present embodiment, chemical feeding points are located at the pulp conveying between concentrate underflow filter mine-separating box 4 and vacuum filter 5
On pipeline (as shown in Figure 2), dosing mean concentration is 936ppm, and the mean utilization of vacuum filter 5 is 1.32t/m2·
H, average negative pressure of vacuum is -0.053mp, and 5 days filter cloth replacing time, the average moisture content of filter cake is 9.83%.
During using routine techniques, chemical feeding points are located on concentrate underflow agitator mine-separating box 18, and dosing mean concentration is
1440ppm, the mean utilization of vacuum filter 5 is 0.943t/m2H, average negative pressure of vacuum is -0.054mp, and filter cloth is more
Change the time 5 days；The average moisture content of filter cake is 9.94%.
Compared with routine techniques, filter aid saves 35% to the present embodiment, and the efficiency of vacuum filter 5 improves 39.98%, filter cake
Moisture content reduces 1.11%, improves the quality of filter efficiency and concentrate, greatly reduces filtering cost.
【Embodiment 3】
As shown in figure 3, in the present embodiment, concentrate pulp filtration system is by the concentrate pulp chute 1, concentrate by being sequentially connected
Concentrate big well 2, concentrate underflow pump A3, concentrate underflow agitator mine-separating box 18, concentrate underflow agitator 19, concentrate underflow pump B20
Constituted with plate and frame filter press 21；The overfall of plate and frame filter press 21 connects concentrate pulp chute 1 by overflow pipe；The present embodiment
In, 2 groups of concentrate underflow agitators 19 and 3 groups of plate and frame filter press 21 are provided with, connected by correspondence ore pulp delivery duct respectively.
Iron ore concentrate concentration is that 20% or so iron ore concentrate ore pulp enters concentrate and concentrates big well 2 by concentrate pulp chute 1, in essence
Ore deposit is concentrated in big well 2, and after going water process through overflow, concentrate concentration big well 2 underflow obtains the concentrate pulp that concentration is more than 60%.
Concentrate pulp enters concentrate underflow agitator 19 in the presence of concentrate underflow pump A17 through concentrate underflow agitator mine-separating box 18,
It is agitated it is temporary after, be delivered to concentrate underflow filter mine-separating box through ore pulp delivery duct in the presence of concentrate underflow pump B20
4, then be delivered to plate and frame filter press 21 through ore pulp delivery duct and filter.
In the present embodiment, filter aid chemicals dosing plant by be sequentially connected filter aid holding vessel 7, filter aid feeding pump 8 and help
Filtering agent head tank 9 is constituted；Filter aid head tank 9 connects each chemical feeding points by drug feeding pipeline.
In routine techniques, the chemical feeding points for being provided with the concentrate pulp filtration system of concentrate underflow agitator 19 are generally arranged at essence
On ore deposit ore pulp chute 1, concentrate underflow agitator 19 or concentrate underflow agitator mine-separating box 18；But flocculate into the ore deposit of bulky grain
Slurry is dispersed as little particle again after agitation, and effect of filtering agent is had a greatly reduced quality, and causes filter efficiency to reduce.
As shown in figure 3, in the present embodiment, chemical feeding points are arranged between concentrate underflow agitator 19 and concentrate underflow pump B20
Ore pulp delivery duct on when, dosing mean concentration be 824ppm；The material feeding average time of plate and frame filter press 21 is 71 seconds, averagely
Cycle period is 572 seconds, and filter cloth usage cycles are 3274 times, and filter cake average moisture content is 9.37%.
It is located at when on concentrate underflow agitator mine-separating box 4 using routine techniques, i.e. filter aid chemical feeding points, dosing mean concentration
It is 1263ppm, the material feeding average time of plate and frame filter press 21 is 83 seconds, and mean period is 634 seconds, and filter cloth usage cycles are
1687 times, filter cake average moisture content is 9.81%.
Compared with routine techniques, in the present embodiment, filter aid saves 34.76%, and the efficiency of plate and frame filter press 21 is improved
9.78%, filter cloth cycle stretch-out 94.07%, filter cake moisture content reduces 4.49%, improves the quality of filter efficiency and concentrate, greatly
Reduce filtering cost greatly.
The above, only the utility model preferably specific embodiment, but protection domain of the present utility model is not
Be confined to this, any one skilled in the art in the technical scope that the utility model is disclosed, according to this practicality
New technical scheme and its utility model design are subject to equivalent or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (5)
1. a kind of concentrate pulp high-efficiency filtration systems, it is characterised in that including：
1) concentrate pulp filtration system by be sequentially connected concentrate pulp chute, that concentrate concentrates big well, concentrate underflow pump, concentrate is dense
Slurry filter mine-separating box and vacuum filter composition；The overfall of vacuum filter and concentrate underflow filter mine-separating box is by overflowing
Stream ore pulp delivery duct connection concentrate pulp chute；Filter aid chemicals dosing plant used by be sequentially connected filter aid holding vessel, help
Filtering agent feeding pump and filter aid head tank are constituted；Filter aid head tank connects each chemical feeding points by dosing ore pulp delivery duct；Plus
Snack made with traditional Chinese medicines includes：A. concentrate concentrate on the pulp conveying ore pulp delivery duct between big well and concentrate underflow pump, b. concentrate underflow pumps
With on the pulp conveying ore pulp delivery duct between concentrate underflow filter mine-separating box, c. concentrate underflow filters mine-separating box, d.
Concentrate underflow is filtered on the pulp conveying ore pulp delivery duct between mine-separating box and vacuum filter；A~c chemical feeding points can individually or
Combination is set, and is arranged as required to 1~4；Filter aid chemicals dosing plant is controlled by Automatic Dosage Control of Additives system；
2) concentrate pulp filtration system concentrates big well, concentrate underflow pump A, concentrate by the concentrate pulp chute that is sequentially connected, concentrate
Underflow agitator mine-separating box, concentrate underflow agitator, concentrate underflow pump B, concentrate underflow filter mine-separating box and vacuum filter
Composition；The overfall of vacuum filter and concentrate underflow filter mine-separating box connects concentrate pulp by overflow pulp conveyance conduit
Chute；Filter aid chemicals dosing plant used is by the filter aid holding vessel, filter aid feeding pump and the filter aid head tank group that are sequentially connected
Into；Filter aid head tank connects each chemical feeding points by dosing ore pulp delivery duct；Chemical feeding points include a. concentrate underflow agitators with
On pulp conveying ore pulp delivery duct between concentrate underflow pump B, b. concentrate underflow pump B and concentrate underflow filter mine-separating box it
Between pulp conveying ore pulp delivery duct on, c. concentrate underflow filters mine-separating box, d. concentrate underflow filtering mine-separating box and vacuum
On pulp conveying ore pulp delivery duct between filter；A~c chemical feeding points can be set alone or in combination, it is arranged as required to 1~
4；Filter aid chemicals dosing plant is controlled by Automatic Dosage Control of Additives system；
3) concentrate pulp filtration system concentrates big well, concentrate underflow pump A, essence by the concentrate pulp chute by being sequentially connected, concentrate
Ore deposit underflow agitator mine-separating box, concentrate underflow agitator, concentrate underflow pump B and plate and frame filter press composition；Plate and frame filter press overflow
Head piece connects concentrate pulp chute by overflow pulp conveyance conduit；Filter aid chemicals dosing plant used is by the filter aid that is sequentially connected
Holding vessel, filter aid feeding pump and filter aid head tank composition；Filter aid head tank connects each by dosing ore pulp delivery duct
Chemical feeding points；Chemical feeding points are included on pulp conveying ore pulp delivery duct between a. concentrate underflow agitators and concentrate underflow pump B, b.
On pulp conveying ore pulp delivery duct between concentrate underflow pump B and plate and frame filter press；A, b chemical feeding points can set alone or in combination
Put, be arranged as required to 1~2；Filter aid chemicals dosing plant is controlled by Automatic Dosage Control of Additives system.
2. a kind of concentrate pulp high-efficiency filtration systems according to claim 1, it is characterised in that the Automatic Dosage Control of Additives
Flow of slurry scale, filter aid flowmeter, motor-driven valve and solenoid valve block that system is connected by control device and respectively with control device
Into；Magnetic valve, motor-driven valve and filter aid are set gradually on dosing ore pulp delivery duct between filter aid head tank and chemical feeding points
Flowmeter, and magnetic valve and motor-driven valve set be located proximate to filter aid head tank；Before vacuum filter or plate and frame filter press
Ore pulp delivery duct on set flow of slurry scale.
3. a kind of concentrate pulp high-efficiency filtration systems according to claim 1, it is characterised in that the filter aid head tank
In set float switch, float switch links with filter aid feeding pump, for controlling the liquid level in filter aid head tank.
4. a kind of concentrate pulp high-efficiency filtration systems according to claim 1, it is characterised in that the chemical feeding points can set many
Individual point of chemical feeding points.
5. a kind of concentrate pulp high-efficiency filtration systems according to claim 1, it is characterised in that the control device is
PLC or computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621281094.5U CN206229063U (en) | 2016-11-24 | 2016-11-24 | A kind of concentrate pulp high-efficiency filtration systems |
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| CN201621281094.5U CN206229063U (en) | 2016-11-24 | 2016-11-24 | A kind of concentrate pulp high-efficiency filtration systems |
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