CN107382011A - Sludge press filtration processing system and sludge press filtration processing method - Google Patents
Sludge press filtration processing system and sludge press filtration processing method Download PDFInfo
- Publication number
- CN107382011A CN107382011A CN201710644331.2A CN201710644331A CN107382011A CN 107382011 A CN107382011 A CN 107382011A CN 201710644331 A CN201710644331 A CN 201710644331A CN 107382011 A CN107382011 A CN 107382011A
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- China
- Prior art keywords
- sludge
- pressure
- pump
- controller
- press filtration
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/003—Filters formed by clamping together several filtering elements or parts of such elements integrally combined with devices for controlling the filtration
- B01D25/007—Filters formed by clamping together several filtering elements or parts of such elements integrally combined with devices for controlling the filtration by pressure measuring
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/001—Upstream control, i.e. monitoring for predictive control
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
Abstract
The invention provides a kind of sludge press filtration processing system and sludge press filtration processing method, it is related to technical field of sludge treatment.Sludge press filtration processing system includes:Sludge pump, filter press and controller;Sludge pump is connected by transfer pipeline with filter press, and pressure sensor is provided with transfer pipeline, and controller electrically connects with sludge pump and pressure sensor respectively;Pressure sensor is used to detect the pressure signal on transfer pipeline, and output pressure signal to controller, controller controls the running status of sludge pump according to pressure signal.The present invention alleviates that current sludge dewatering treatment system automaticity is low, treatment effeciency is low, sludge water pressure transient in course of conveying, it is impossible to effectively controlled entering mud system, so as to influence the technical problem of the service life of filter press and press filtration effect.The present invention can make the conveying of filter press sludge realize the operation for controlling sludge pump with pressure spot position size, simplify manual operation flow, and intelligence degree is high, and filter press is stable.
Description
Technical field
The present invention relates to technical field of sludge treatment, in particular to a kind of sludge press filtration processing system and sludge pressure
Treating filter method.
Background technology
The process of Chinese Urbanization is in the stage constantly accelerated, while the situation of environmental pollution is also aggravating, and sludge is asked
Topic has become a significant problem of relation people life.The annual year sludge yield in China is very huge, weight is very frightened
People, while the total amount of sewage discharge in most of city is also in constantly to accelerate increased trend, but corresponding sewage treating efficiency
Speed is not correspondingly improved, the discharge of sludge is caused and banks up and have become new great pollution sources.
Current sludge disposal technology includes dehydration, concentration and the drying of sludge.Some plant equipment can currently be passed through
The separation of solid and liquid of sludge water is realized such as filter press, filter press is applied to municipal sewage plant, pharmacy, plating, papermaking, skin
Leather, printing and dyeing, metallurgy, chemical industry, butcher, in food, wine brewing and environment-friendly engineering wastewater treatment process sludge dewatering, in industrial production
In can also be used for the occasion of separation of solid and liquid, be the ideal equipment of environmental improvement and resource reclaim, industrial production can also be applied to
In separation of solid and liquid or liquid leach process.
Traditional sludge dewatering system is all to be connected more press filtrations by a sludge-tank, more sludge pumps and set in the prior art
Standby composition.Current sludge dewatering treatment system is cumbersome, and automaticity is low, and treatment effeciency is low, and due to muddy water point
Cloth is uneven, causes sludge water pressure transient in course of conveying, it is impossible to effectively controlled entering mud system, so as to influence
The service life and press filtration effect of filter press.
In view of this, it is special to propose the present invention.
The content of the invention
It is an object of the invention to provide a kind of sludge press filtration processing system and sludge press filtration processing method, makes filter press dirty
Mud conveying can be realized with pressure spot position size to control the operation of sludge pump, simplify manual operation flow, intelligence degree
Higher, filter press is stable.
In order to realize the above-mentioned purpose of the present invention, spy uses following technical scheme:
A kind of sludge press filtration processing system, the sludge press filtration processing system include:Sludge pump, filter press and controller;
The sludge pump is connected by transfer pipeline with the filter press, and pressure sensing is provided with the transfer pipeline
Device, the controller electrically connect with the sludge pump and the pressure sensor respectively;
The pressure sensor is used to detecting pressure signal on transfer pipeline, and output pressure signal is to the control
Device, the controller control the running status of the sludge pump according to the pressure signal.
Preferably, on the basis of technical solution of the present invention, the running status includes startup, stopping and the speed of service.
Further, on the basis of technical solution of the present invention, the sludge pump is provided with frequency converter.
Preferably, on the basis of technical solution of the present invention, the controller is set with first pressure value and second pressure
Value;
The controller is used for by the pressure signal compared with the first pressure value and the second pressure value,
Startup, stopping and the speed of service of the sludge pump are controlled according to comparative result:
When the pressure signal is less than the first pressure value, operation when controller controls the sludge pump to start
Frequency is run;
When the pressure signal is more than or equal to the first pressure value and is less than the second pressure value, controller control
The sludge pump is with less than running frequency operation when starting;
When the pressure signal is more than or equal to the second pressure value, controller controls the sludge pump out of service.
Preferably, on the basis of technical solution of the present invention, the first pressure value is 0.2~0.7MPa, described second
Pressure value is 0.8~1.0MPa.
Preferably, on the basis of technical solution of the present invention, the electric machine frequency of the sludge pump is 20~60Hz;The dirt
Running frequency when dredge pump starts is 50~60Hz.
Preferably, on the basis of technical solution of the present invention, the sludge pump is monopole screw pump;
The rotating speed of the monopole screw pump is 150~300 revs/min.
Preferably, on the basis of technical solution of the present invention, the controller is PLC;The PLC is set
There is touch screen.
A kind of sludge press filtration processing method using above-mentioned sludge press filtration processing system, comprise the following steps:
Sludge water enters sludge pump, and sludge water is delivered into filter press by transfer pipeline;Pressure sensor detection is defeated
The pressure signal on pipeline is sent, pressure signal is transmitted to controller, to control the running status of sludge pump.
Preferably, on the basis of technical solution of the present invention, sludge press filtration processing method comprises the following steps:
Sludge water enters sludge pump, and sludge water is delivered into filter press by transfer pipeline;Pressure sensor detection is defeated
The pressure signal on pipeline is sent, pressure signal is transmitted to controller;Controller by pressure signal and controller setting first
Pressure value and second pressure value are compared, and startup, stopping and the speed of service of sludge pump are controlled according to comparative result:
When pressure signal is less than first pressure value, running frequency operation when controller controls sludge pump to start;
When pressure signal is more than or equal to first pressure value and when being less than second pressure value, controller control sludge pump with less than
Running frequency operation during startup;
When pressure signal is more than or equal to second pressure value, controller control sludge pump is out of service.
Compared with the prior art, the present invention has the advantages that:
(1) sludge press filtration processing system provided by the invention includes sludge pump, filter press pressure sensor and controller, leads to
Over-pressed force snesor signal piping pressure size, then the operation shape of sludge pump is controlled with hop controller according to pressure size signal
State, the conveying of filter press sludge is realized with pressure spot position size to control the operation of sludge pump, simplify manual operation stream
Journey, intelligence degree is higher, improves efficiency of sludge treatment.
(2) present invention adjusts sludge revolution speed according to filter press mud inlet end pressure size, inputiing mud volume is controlled, to pump and press filtration
Machine is played a very good protection, and the conveying of muddy water is controlled by pressure, can be control effectively to entering mud system, is ensured
The stability of sludge press filtration process, improve the service life and press filtration effect of filter press.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the sludge press filtration processing system of a preferred embodiment of the invention.
Icon:1- sludge pumps;2- filter presses;3- controllers;4- pressure sensors.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
Middle accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
It is part of the embodiment of the present invention, rather than whole embodiments.The present invention being generally described and illustrated herein in the accompanying drawings is real
Applying the component of example can be configured to arrange and design with a variety of.Therefore, it is of the invention to what is provided in the accompanying drawings below
The detailed description of embodiment is not intended to limit the scope of claimed invention, but is merely representative of the selected reality of the present invention
Apply example.Based on embodiments of the invention, institute that those skilled in the art are obtained on the premise of creative work is not made
There is other embodiment, belong to the scope of protection of the invention.
In the description of the invention, unless otherwise clearly defined and limited, term " connected ", " connection " should do broad sense reason
Solution, for example, it may be being fixedly connected or being detachably connected, or is integrally connected;Can mechanically connect, can also
It is electrical connection;Can be joined directly together, can also be indirectly connected by intermediary, can be the connection of two element internals.
For the ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
According to an aspect of the invention, there is provided a kind of sludge press filtration processing system, as shown in figure 1, at sludge press filtration
Reason system includes:Sludge pump 1, filter press 2 and controller 3;Sludge pump 1 is connected by transfer pipeline with filter press 2, transfer pipeline
On be provided with pressure sensor 4, controller 3 electrically connects with sludge pump 1 and pressure sensor 4 respectively;
Pressure sensor 4 is used to detect the pressure signal on transfer pipeline, and output pressure signal controls to controller 3
Device 3 controls the running status of sludge pump 1 according to pressure signal.
Sludge pump is used to convey sludge water, and control sludge water is delivered to filter press.Preferably, sludge pump is screw pump.
Filter press is the sludge dehydration device that sludge water forces filtration medium, it is preferable that filter press is plate and frame filter press.
Pressure sensor is used to detect the pressure signal on transfer pipeline, and pressure signal is delivered into controller, controls
Device controls the running status of sludge pump according to the signal.Typical but non-limiting running status includes starting, stop and running
Speed etc..
Control implement body can use programmable logic controller (PLC) (Programmable Logic Controller,
PLC), single-chip microcomputer, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) or other PLDs, transistor logic, isolating hardware etc.
Component is realized or performed, and will not be repeated here.
Preferably, controller is PLC.
Traditional sludge dewatering system is all to be connected more press filtrations by a sludge-tank, more sludge pumps and set in the prior art
Standby composition.Current sludge dewatering treatment system exists cumbersome, and automaticity is low, and treatment effeciency is low, in course of conveying
Pressure transient, it is impossible to effectively controlled entering mud system, so as to influence the service life of filter press and press filtration effect
Problem.
Sludge press filtration processing system provided by the invention includes sludge pump, filter press pressure sensor and controller, passes through
The pressure size of pressure sensor signal piping, then the operation shape of sludge pump is controlled with hop controller according to pressure size signal
State, the conveying of filter press sludge is realized with pressure spot position size to control the operation of sludge pump, simplify manual operation stream
Journey, intelligence degree is higher, and efficiency of press filtering is higher, press filtration cycle time, and moisture content of the cake is relatively low.The present invention enters according to filter press
Mud end pressure size adjusts revolution speed, controls inputiing mud volume, the protection to pump and filter press is preferable, and not so pump and filter press are easy to
Damage, pump motor burn-up, filter press filter membrane is easily worn, and by being control effectively to entering mud system, ensures sludge press filtration
The stability of process, improve the service life and press filtration effect of filter press.
In a preferred embodiment, sludge pump 1 is provided with frequency converter.
Frequency converter is to apply converter technique and microelectric technique, is handed over by changing motor working power Frequency Patterns to control
Flow the electric control appliance of motor.Frequency converter is mainly by rectification (AC-DC), filtering, inversion (direct current becomes exchange), system
Moving cell, driver element, detection unit microprocessing unit etc. form, and IGBT cut-offs to adjust the voltage of out-put supply close to the inner portion
And frequency, according to being actually needed to provide the supply voltage required for it for motor.
Preferably, the power of sludge pump is 5.5kW, and the power of frequency converter is 7.5kW.
Change the running frequency of sludge pump motor by frequency converter, so as to change the rotating speed of sludge pump, to control muddy water
Conveying.
In a preferred embodiment, the electric machine frequency of sludge pump is 20~60Hz;Operation during sludge pump startup
Frequency is 50~60Hz.
The electric machine frequency of sludge pump is the running frequency of sludge pump, that is to say, that pump is run in this frequency range, typical case
But nonrestrictive electric machine frequency is 20Hz, 30Hz, 40Hz, 50Hz or 60Hz.
Running frequency during startup is 50~60Hz, and typical but non-limiting sludge pump initiation culture is 50Hz, 55Hz
Or 60Hz.
Sludge pump can obtain a range of rotating speed at this frequency range, ensure sludge pump stable operation.
In a preferred embodiment, control process is realized by the following means:
Controller 3 is set with first pressure value and second pressure value;Controller is used for pressure signal and first pressure value
It is compared with second pressure value, startup, stopping and the speed of service of sludge pump is controlled according to comparative result:
(a) when pressure signal is less than first pressure value, running frequency operation when control sludge pump is to start;
(b) when pressure signal is more than or equal to first pressure value and when being less than second pressure value, sludge pump is controlled with less than opening
Running frequency operation when dynamic;
(c) when pressure signal is more than or equal to second pressure value, control sludge pump is out of service.
First pressure value and second pressure value can set adjustable, wherein first pressure value in the controller according to actual conditions
Less than second pressure value.
Preferably, the optional scope of first pressure value is 0.2~0.7MPa, and typical but non-limiting first pressure value is
0.2MPa, 0.3MPa, 0.4MPa, 0.5MPa, 0.6MPa or 0.7MPa.
Preferably, the optional scope of second pressure value is 0.8~1.0MPa, and typical but non-limiting second pressure value is
0.8MPa, 0.9MPa or 1.0MPa.
During specific implementation, sludge water enters sludge pump, and by pressure sensor, pressure sensor detects pressure value, root
According to the running frequency of pressure value control sludge pump, so as to change the rotating speed of sludge pump.Pass through such a control mode, Neng Goubian
Frequency controls the rotating speed of sludge pump, and when pressure is bigger, sludge revolution speed is lower, so as to also make filter press pressure stable, protects pressure
Filter, it ensure that Treatment of Sludge effect and filter press service life.
Typical control process is as follows:
(a) when starting to press mud, manual turn on pump, pump startup and running frequency are that (set of frequency is adjustable, adjustable model by 50Hz
Enclose for 50~60Hz);
(b) when pressure sensor detects that pressure is 0.4MPa, (pressure value sets adjustable, adjustable model in the controller
Enclose for 0.2MPa~0.7MPa), electric machine frequency drops to 25Hz (set of frequency is adjustable, and adjustable extent is 20~45Hz) automatically,
Now pump continues to run with, when pressure be raised to 0.8MPa (pressure value set in the controller it is adjustable, adjustable extent be 0.8MPa~
When 1MPa), pump is automatically stopped, the pump startup when pressure drops to 0.4MPa, and now frequency is 25Hz, when pressure is raised to 0.8MPa
When, pump is automatically stopped, the pump startup when pressure drops to 0.4MPa again, and now frequency is 25Hz, subsequently repeatedly said process, until
Dump, it is artificial before dump to close robot control system(RCS).
When pressure is raised to 0.8MPa, refer to during the entire process of system operation when measurement point pressure is met or exceeded
During 0.8MPa, pump motor is automatically stopped.
In a preferred embodiment, sludge pump is monopole screw pump;The rotating speed of monopole screw pump is 150~300
Rev/min.
Screw pump is volume type rotor pump, and it is to change by the volume of the annular seal space formed by screw and bushing to suck
With discharge liquid.Screw pump by screw rod number be divided into single-screw (single screw) pump, it is double, three and five-screw pump.Screw pump have flow trim,
Pressure fluctuation is small, has the advantages of low suction capacity, noise, efficiency high, long lifespan, reliable operation;And the advantages of its protrusion is defeated
Send and do not form vortex during medium, to the sticky insensitive of medium, can transfer of highly viscous medium.
It is stable, reliable using monopole screw pump, mud-water conveying process is steadily carried out.
The rotating speed of typical but non-limiting monopole screw pump is, for example, 150 revs/min, 160 revs/min, 170 revs/min, 180
Rev/min, 190 revs/min, 200 revs/min, 210 revs/min, 220 revs/min, 230 revs/min, 240 revs/min, 250 revs/min, 260 turns/
Divide, 270 revs/min, 280 revs/min, 290 revs/min or 300 revs/min.
By the frequency change of screw pump motor screw pump can be controlled to be run under certain rotating speed, frequency conversion control can be reached
The effect of rotating speed processed, ensure the stable conveying of muddy water.
In a preferred embodiment, controller is PLC;PLC is provided with touch screen.
Programmable logic controller (PLC) (Programmable Logic Controller, abbreviation PLC) is that one kind has micro- place
The digital electronic device of reason machine, for the digital logic controller of Automated condtrol, control instruction can be loaded internal memory at any time
Interior storage and execution.Programmable controller is by innernal CPU, instruction and data internal memory, input-output unit, power supply module, numeral
The unit institute modularities such as simulation are combined into.
Control whole process more advantageous using PLC control system, PLC control system signal processing time is short, can
High by property, system configuration is got up simple and flexible, workable, while PLC control system is provided with touch screen, passes through touch screen energy
First pressure value and second pressure value are enough inputted, makes first pressure value and second pressure value adjustable, modulability and automaticity
It is higher.
According to another aspect of the present invention, there is provided at a kind of sludge press filtration using above-mentioned sludge press filtration processing system
Reason method, comprises the following steps:
Sludge water enters sludge pump 1, and sludge water is delivered into filter press 2 by transfer pipeline;Pressure sensor 4 detects
Pressure signal on transfer pipeline, pressure signal is transmitted to controller 3, to control the running status of sludge pump 1.
The present invention sludge press filtration processing method have with sludge press filtration processing system identical advantage, pass through pressure sensing
Device signal piping one pinpoints the pressure size on position, then controls the operation of sludge pump according to pressure size signal with hop controller
State, running status can include start and stop and the speed of service of sludge pump, and conveying the sludge of filter press can realize with pressure
Position size is put to control the operation of sludge pump, not only simplify manual operation flow, intelligence degree is higher, improves press filtration effect
Rate, the press filtration cycle is shortened, the moisture content of the cake after processing is relatively low.Simultaneously by the rotating speed of automatic-adjusting pump, reach control into
The effect of mud amount, plays a protective role to pump and filter press, ensures the stability of sludge press filtration process, improves the use of filter press
Life-span and press filtration effect.
In a preferred embodiment, typical sludge press filtration processing method comprises the following steps:
Sludge water enters sludge pump 1, and sludge water is delivered into filter press 2 by transfer pipeline;Pressure sensor 4 detects
Pressure signal on transfer pipeline, pressure signal is transmitted to controller 3;Controller 3 sets pressure signal and controller 3
First pressure value and second pressure value are compared, and startup, stopping and the speed of service of sludge pump 1 are controlled according to comparative result:
(a) when pressure signal is less than first pressure value, running frequency operation when control sludge pump 1 is to start;
(b) when pressure signal is more than or equal to first pressure value and when being less than second pressure value, sludge pump 1 is controlled with less than opening
Running frequency operation when dynamic;
(c) when pressure signal is more than or equal to second pressure value, control sludge pump is out of service.
Wherein, first pressure value and second pressure value are set in the controller in advance, can controlled according to actual conditions
Set adjustable in device processed, wherein first pressure value is less than second pressure value.
The optional scope of first pressure value is 0.2~0.7MPa;The optional scope of second pressure value is 0.8~1.0MPa.
During specific implementation, sludge water enters sludge pump 1, and by pressure sensor 4, pressure sensor 4 detects pressure value,
The running frequency of sludge pump 1 is controlled according to pressure value, so as to the rotating speed of conditioning of mud pump 1, controls inputiing mud volume.The bigger sludge of pressure
Revolution speed is lower, so as to also make filter press pressure stable, protects filter press, ensure that Treatment of Sludge effect and filter press use
Life-span.
It can be specifically controlled by procedure below:
(a) when starting to press mud, manual turn on pump, pump startup and running frequency are that (set of frequency is adjustable, adjustable model by 50Hz
Enclose for 50~60Hz);
(b) when pressure sensor detects that pressure is 0.4MPa, (pressure value sets adjustable, adjustable model in the controller
Enclose for 0.2MPa~0.7MPa), electric machine frequency drops to 25Hz (set of frequency is adjustable, and adjustable extent is 20~45Hz) automatically,
Now pump continues to run with, when pressure be raised to 0.8MPa (pressure value set in the controller it is adjustable, adjustable extent be 0.8MPa~
When 1MPa), pump is automatically stopped, the pump startup when pressure drops to 0.4MPa, and now frequency is 25Hz, when pressure is raised to 0.8MPa
When, pump is automatically stopped, the pump startup when pressure drops to 0.4MPa again, and now frequency is 25Hz, subsequently repeatedly said process, until
Dump, it is artificial before dump to close robot control system(RCS).
It is as follows using a kind of operating process of the sludge press filtration processing system of preferred embodiment of the present invention:
(1) plate and frame filter press is compressed by plate and frame filter press operational procedure, filter press is in pureed state to be entered;
(2) self-sucking pot is filled into clear water, opens it and pass in and out sludge pipe valve;
(3) whether the emptying valve closed on screw pump outlet conduit is opened with valve before and after inspection relief valve;
(4) whether the opening for checking again for each pipeline valve of screw pump system meets technological requirement;
(5) manually boot screw pump, and be adjusted on switch board operation screen automatic, now the system will be with being located at
The detection pressure size of pressure sensor on pipeline carrys out start and stop and the speed of service of automatic controlling pump;
(6) pressure size in related start and stop each stage need to be such as adjusted in automatic running, is directly entered the parameter of operation interface
Set i.e. can be set required for pressure size (such as pressure arrive during 0.8MPa pump force close down, when pressure is less than 0.4MPa pump certainly
It is dynamic to start);
(7) when plate and frame filter press not water outlet substantially, control system is adjusted to closed mode or off-position manually;
(8) atmospheric valve on screw pump outlet conduit is opened;
(9) sheet frame, dump are unclamped;
(10) press filtration is come back to after mud cake is unsnatched to start to operate, and is and so on carried out.
To sum up, sludge press filtration processing system of the invention and sludge press filtration processing method intelligence degree are higher, make press filtration
The sludge course of conveying of machine is realized with pressure spot position size to control the operation of sludge pump, so as to control inputiing mud volume, is realized dirty
The stable conveying and processing of mud, have saved human cost, have effectively protected pump and filter press, by using the sludge press filtration of the present invention
Processing system handles sludge efficiency high, and moisture content of the cake is low, and effect is good.
Although being illustrated with specific embodiment and being described the present invention, but will be appreciated that in the essence without departing substantially from the present invention
Many other change and modification can be made in the case of god and scope.It is, therefore, intended that wrap in the following claims
Include all such changes and modifications belonged in the scope of the invention.
Claims (10)
1. a kind of sludge press filtration processing system, it is characterised in that the sludge press filtration processing system includes:Sludge pump, filter press
And controller;
The sludge pump is connected by transfer pipeline with the filter press, and pressure sensor, institute are provided with the transfer pipeline
Controller is stated to electrically connect with the sludge pump and the pressure sensor respectively;
The pressure sensor is used to detecting pressure signal on transfer pipeline, and output pressure signal is to the controller, institute
State the running status that controller controls the sludge pump according to the pressure signal.
2. according to the sludge press filtration processing system described in claim 1, it is characterised in that the running status includes starting, stopped
Only and the speed of service.
3. according to the sludge press filtration processing system described in claim 1 or 2, it is characterised in that the sludge pump is provided with frequency converter.
4. according to the sludge press filtration processing system described in claim 3, it is characterised in that the controller is set with first pressure
Value and second pressure value;
The controller is used for by the pressure signal compared with the first pressure value and the second pressure value, according to
Comparative result controls startup, stopping and the speed of service of the sludge pump:
When the pressure signal is less than the first pressure value, running frequency when controller controls the sludge pump to start
Operation;
When the pressure signal is more than or equal to the first pressure value and is less than the second pressure value, described in controller control
Sludge pump is with less than running frequency operation when starting;
When the pressure signal is more than or equal to the second pressure value, controller controls the sludge pump out of service.
5. according to the sludge press filtration processing system described in claim 4, it is characterised in that the first pressure value be 0.2~
0.7MPa, the second pressure value are 0.8~1.0MPa.
6. according to the sludge press filtration processing system described in claim 4, it is characterised in that the electric machine frequency of the sludge pump is 20
~60Hz;
Running frequency during the sludge pump startup is 50~60Hz.
7. according to the sludge press filtration processing system described in claim 1 or 2, it is characterised in that the sludge pump is monopole screw rod
Pump;
The rotating speed of the monopole screw pump is 150~300 revs/min.
8. according to the sludge press filtration processing system described in claim 1 or 2, it is characterised in that the controller controls for PLC
Device;The PLC is provided with touch screen.
9. a kind of sludge press filtration processing method of sludge press filtration processing system using described in claim any one of 1-8, it is special
Sign is, comprises the following steps:
Sludge water enters sludge pump, and sludge water is delivered into filter press by transfer pipeline;Pressure sensor detects delivery pipe
Pressure signal on road, pressure signal is transmitted to controller, to control the running status of sludge pump.
10. according to the sludge press filtration processing method described in claim 9, it is characterised in that comprise the following steps:
Sludge water enters sludge pump, and sludge water is delivered into filter press by transfer pipeline;Pressure sensor detects delivery pipe
Pressure signal on road, pressure signal is transmitted to controller;The first pressure that controller sets pressure signal and controller
Value and second pressure value are compared, and startup, stopping and the speed of service of sludge pump are controlled according to comparative result:
When pressure signal is less than first pressure value, running frequency operation when controller controls sludge pump to start;
When pressure signal is more than or equal to first pressure value and is less than second pressure value, controller controls sludge pump with less than startup
When running frequency operation;
When pressure signal is more than or equal to second pressure value, controller control sludge pump is out of service.
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107935348A (en) * | 2017-11-28 | 2018-04-20 | 深圳市万佳晟环保产业有限公司 | slurry processing system and method |
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