CN115806376A - Sludge dewatering system - Google Patents
Sludge dewatering system Download PDFInfo
- Publication number
- CN115806376A CN115806376A CN202111081891.4A CN202111081891A CN115806376A CN 115806376 A CN115806376 A CN 115806376A CN 202111081891 A CN202111081891 A CN 202111081891A CN 115806376 A CN115806376 A CN 115806376A
- Authority
- CN
- China
- Prior art keywords
- sludge
- pressure value
- real
- time
- pneumatic pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 107
- 230000018044 dehydration Effects 0.000 claims abstract description 14
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 14
- 238000005086 pumping Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 208000005156 Dehydration Diseases 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The application provides a sludge dewatering system for carry out dehydration to the mud in the mud storage tank, sludge dewatering system includes: a dehydrator; the sludge inlet module is used for connecting the sludge storage tank and the dehydrator and comprises a pneumatic pump which is used for pumping the sludge in the sludge storage tank into the dehydrator; the pressure sensor is connected with the pneumatic pump and used for sensing a real-time pressure value of air transmitted into the dehydrating machine through the pneumatic pump; and the control module is connected with the pneumatic pump, the pressure sensor and the dehydrator and is used for controlling the pneumatic pump and the dehydrator to work according to the real-time pressure value sensed by the pressure sensor. This application has realized the mud process of advancing of intelligent control hydroextractor, can effectively shorten the mud pressing time, save the air input and promote the utilization rate of hydroextractor.
Description
Technical Field
The application relates to the technical field of sewage treatment, in particular to a sludge dewatering system.
Background
The existing sludge dewatering machine works in a mode of manually setting sludge feeding time, generally 8-12 hours, and a pneumatic pump is required to continuously pump sludge from a sludge storage tank. The pressure of the air pumped into the sludge dewatering machine is lower at the beginning because the sludge in the sludge dewatering machine is less, but the air pressure in the dewatering machine is increased gradually along with the slow full-filling of the sludge, so that the sludge can not enter the sludge dewatering machine again. At the moment, the pneumatic pump still works, so that the total mud pressing time is prolonged, the air inflow is wasted, and the utilization rate of the machine is low.
Disclosure of Invention
In view of the above, it is desirable to provide a sludge dewatering system capable of automatically stopping a dewatering machine from extracting sludge when the dewatering machine is full of sludge.
The application provides a sludge dewatering system for carry out dehydration treatment to the mud in the mud storage tank, sludge dewatering system includes: a dehydrator; the sludge inlet module is used for connecting the sludge storage tank and the dehydrator and comprises a pneumatic pump which is used for pumping the sludge in the sludge storage tank into the dehydrator; the pressure sensor is connected with the pneumatic pump and used for sensing a real-time pressure value of air transmitted into the dehydrating machine through the pneumatic pump; and the control module is connected with the pneumatic pump, the pressure sensor and the dehydrator and is used for controlling the pneumatic pump and the dehydrator to work according to the real-time pressure value sensed by the pressure sensor.
Optionally, the control module is configured to control the pneumatic pump to stop working and control the dehydrator to perform dehydration when the real-time pressure value sensed by the pressure sensor exceeds a preset pressure value in the control module.
Optionally, the control module is configured to control the pneumatic pump to stop working and control the dehydrator to perform dehydration when the real-time pressure value sensed by the pressure sensor exceeds a preset pressure value in the control module and the maintaining time reaches a preset maintaining time.
Optionally, the control module is further configured to control the real-time pressure value of the pressure sensor to be cleared and control the pneumatic pump to continue to work after the dewatering machine finishes dewatering sludge.
Optionally, the mud feeding module further comprises a mud feeding pipeline, two ends of the mud feeding pipeline are respectively connected with the mud storage tank and the dehydrator, and the pneumatic pump is arranged on the mud feeding pipeline.
Optionally, the pneumatic pump comprises an inlet valve and an outlet valve, the pressure sensor being disposed between the inlet valve and the outlet valve of the pneumatic pump.
Optionally, the dewatering machine is a plate and frame sludge dewatering machine.
Optionally, the preset pressure value and the preset maintaining time are obtained according to the real-time pressure value acquired by the pressure sensor within a period of time.
Optionally, the obtaining of the preset pressure value and the preset maintaining time includes the following steps: obtaining a real-time pressure value of a complete interval, wherein the real-time pressure value of the complete interval refers to the real-time pressure value of air conveyed into the dehydrating machine from the beginning to the stopping of sludge feeding; obtaining a fluctuation interval of the real-time pressure value according to the real-time pressure value of the complete interval; and obtaining the pressure preset value and the preset maintaining time according to the real-time pressure value in the fluctuation interval.
Optionally, the obtaining of the preset pressure value and the preset maintaining time according to the real-time pressure value in the fluctuation interval includes: taking the time when the real-time pressure value finishes the primary fluctuation as the preset maintaining time; and taking the average value of all the real-time pressure values collected in the fluctuation interval as the preset pressure value.
Compared with the prior art, the application has at least the following beneficial effects: the pressure sensor is arranged to obtain the real-time pressure value of air entering the dehydrator through the pneumatic pump, the pressure preset value in the control module is matched, the mud feeding process of the intelligent control dehydrator is achieved, mud pressing time can be effectively shortened, the water content of sludge is stabilized, the air input is saved, and the utilization rate of the dehydrator is improved.
Drawings
FIG. 1 is a schematic block diagram of a sludge dewatering system according to an embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of a sludge dewatering system according to an embodiment of the present application.
Fig. 3 is a flowchart illustrating a method for obtaining a preset pressure value and a preset holding time according to an embodiment of the present disclosure.
The following detailed description will further illustrate the present application in conjunction with the above-described figures.
Description of the main elements
Sludge dewatering system 1000
Dewaterer 200
Mud inlet pipe 320
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 and 2, a sludge dewatering system 1000 for dewatering sludge in a sludge storage tank 100 (see fig. 2) is provided. The sludge dehydrating system 1000 includes: hydroextractor 200, mud inlet module 300, pressure sensor 400, and control module 500.
The sludge inlet module 300 is connected to the sludge storage tank 100 and the dehydrator 200. The sludge feeding module 300 includes a pneumatic pump 310, and the pneumatic pump 310 is used for pumping the sludge in the sludge storage tank 100 into the dewatering machine 200.
The pressure sensor 400 is connected to the pneumatic pump 310 for sensing a real-time pressure value of the air delivered into the dehydration engine 200 through the pneumatic pump 310.
The control module 500 is connected to the pneumatic pump 310, the pressure sensor 400, and the dehydration engine 200. The control module 500 is used for controlling the operation of the pneumatic pump 310 and the dehydrator 200 according to the real-time pressure value of the air conveyed into the dehydrator 200 sensed by the pressure sensor 400.
Specifically, a preset pressure value is preset in the control module 500. The control module 500 is configured to control the pneumatic pump 310 to stop working and control the dehydrator 200 to perform dehydration when the pressure sensor 400 senses that the real-time pressure value of the air conveyed into the dehydrator 200 exceeds the preset pressure value.
The pressure sensor 400 is arranged to acquire the real-time pressure value of the air entering the dehydrator 200 through the pneumatic pump 310, and the pressure preset value in the control module 500 is matched, so that the sludge feeding process of the dehydrator 200 can be intelligently controlled, and the pneumatic pump 310 is prevented from being still in a working state for a long time under the condition that the dehydrator 200 cannot pump any more sludge.
In this embodiment, a preset maintaining time is preset in the control module 500. The control module 500 is configured to control the pneumatic pump 310 to stop working and control the dehydration engine 200 to perform dehydration when the real-time pressure value sensed by the pressure sensor 400 exceeds the preset pressure value in the control module 500 and the maintaining time reaches the preset maintaining time. It can be understood that, in order to prevent the control module 500 from making a false judgment, the real-time pressure value needs to be higher than the preset pressure value for a period of time (e.g., the preset maintaining time) to reflect that the sludge inside the dehydrator 200 is fully pumped, so as to control the pneumatic pump 310 and the dehydrator 200.
It is understood that the dehydrator 200 may be, for example, a plate and frame sludge dehydrator. The plate-and-frame sludge dewatering machine can well press sludge into sludge cakes, and filtrate and the sludge cakes after dewatering are respectively output. In other embodiments, the dewatering machine 200 can also be a belt sludge dewatering machine, a centrifugal sludge dewatering machine, a tandem sludge dewatering machine, or the like. It can be understood that the sludge inlet module 300 further comprises a sludge inlet pipe 320, and two ends of the sludge inlet pipe 320 are respectively connected to the sludge storage tank 100 and the dewatering machine 200. The pneumatic pump 310 is disposed on the mud inlet pipe 320. Specifically, the pneumatic pump 310 further includes an inlet valve (not shown) and an outlet valve (not shown). The inlet valve of the pneumatic pump 310 is located at a position upstream of the pneumatic pump 310 (between the sludge storage tank 100 and the pneumatic pump 310). The outlet valve of the pneumatic pump 310 is located downstream of the pneumatic pump 310 (between the pneumatic pump 310 and the dehydration engine 200). In this embodiment, no limitation is imposed on the mud feeding module 300, and the mud feeding module 300 may further include other components according to actual needs.
It is understood that in some embodiments, the pressure sensor 400 may be installed at the front end of the pneumatic pump 310 (i.e., at the sludge inlet pipe 320 between the pneumatic pump 310 and the sludge storage tank 100). In other embodiments, the pressure sensor 400 may also be mounted between the inlet valve and the outlet valve of the pneumatic pump 310.
In this embodiment, the dewatering machine 200 is further provided with a sensing device (not shown) for sensing whether the dewatering machine 200 finishes dewatering, for example, when the sensing device senses that mud cake falls off, the dewatering machine 200 sends a dewatering finish signal to the control module 500. The control module 500 is further configured to control the real-time pressure value of the pressure sensor 400 to be cleared after the dehydrator 200 completes sludge dehydration, and control the pneumatic pump 310 to continue working, so as to re-pump sludge into the dehydrator 200 for dehydration.
It is understood that the preset pressure value and the preset maintaining time are obtained according to the real-time pressure value collected by the pressure sensor 400 in a period of time.
Referring to fig. 3, specifically, the preset pressure value and the preset holding time may be obtained through the following steps:
and S11, acquiring a real-time pressure value of the complete interval.
The real-time pressure value of the complete interval refers to the real-time pressure value of the air conveyed into the dehydrator 200 from the beginning to the stopping of the sludge feeding.
It can be understood that when sludge is not yet in the dewatering machine 200 and the air pump 310 starts to pump sludge from the sludge storage tank 100, the air pressure of the air pump 310 pumped into the dewatering machine 200 is small because of the large space in the dewatering machine 200. However, as the sludge slowly progresses to full, the air pressure pumped into extractor 200 by pneumatic pump 310 increases, eventually causing the sludge to no longer enter extractor 200. As such, the real-time pressure value of the air sensed at the pneumatic pump 310 is maintained at a fixed interval, and fluctuates up and down within the interval.
It is understood that, in some embodiments, the real-time pressure value of the complete interval may be obtained by manually setting the sludge feeding time (i.e., the pneumatic pump 310 pumps the sludge for a long time) to complete sludge dewatering. In these embodiments, the obtaining of the preset pressure value and the preset maintaining time further includes comparing the water content of the sludge dewatered by the sludge dewatering system 1000 with the water content of the sludge dewatered by pumping out the sludge for a long time. If the water contents of the two are coincided in a certain numerical range, the preset pressure value and the preset maintaining time can be used.
In other embodiments, the real-time pressure value of the complete interval may be obtained by using the sludge dewatering system 1000 described herein (determining when the pneumatic pump 310 stops pumping sludge according to the magnitude of the real-time pressure value) to complete sludge dewatering.
And S12, obtaining a fluctuation interval of the real-time pressure value according to the real-time pressure value of the complete interval.
It can be understood that when the pressure of the air pumped into the dehydration engine 200 by the pneumatic pump 310 is small, the frequency of the real-time pressure value fluctuation is small and the amplitude is not uniform. When the sludge slowly enters into the dehydrator 200, the frequency of the real-time pressure value change starts to increase and the amplitude also approaches after the air pressure in the air pump 310 pumped into the dehydrator 200 reaches a certain value. Until the sludge in the dehydrator 200 is in a full state, the frequency and amplitude of the change of the real-time pressure value are stabilized in a fixed range, that is, the waveform of the fluctuation of the real-time pressure value is quite regular.
And S13, obtaining the pressure preset value and the preset maintaining time according to the real-time pressure value in the fluctuation interval.
It can be understood that the real-time pressure value fluctuates up and down regularly after the sludge in the dewatering machine 200 is in a full state. And if each time the primary wave action is finished is a fluctuation interval, the preset maintaining time is the time required for finishing the primary fluctuation. The preset pressure value may be obtained by processing the value in the fluctuation interval, for example, in a specific embodiment, the preset pressure value is an average value of all the implementation pressure values collected in the fluctuation interval.
It can be understood that each fluctuation of the real-time pressure value has a slight difference, and the preset pressure value and the preset maintaining time may also be obtained according to a fluctuation interval of a plurality of fluctuations of the real-time pressure value. For example, the preset maintaining time is the total duration of a plurality of fluctuations divided by the number of fluctuations, and the preset pressure value is the average value of all the implementation pressure values collected within the plurality of fluctuations.
This application acquires the process through installing pressure sensor 400 the pneumatic pump 310 gets into the real-time pressure value of the air in the hydroextractor 200, the pressure default in the control module 500 of deuterogamying realizes intelligent control hydroextractor 200's mud process of advancing, can effectively shorten the mud pressing time, stabilize the mud moisture content, save the air input and promote hydroextractor 200's the rate of utilization.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not used as limitations of the present application, and that suitable modifications and changes of the above embodiments are within the scope of the claims of the present application as long as they are within the spirit and scope of the present application.
Claims (10)
1. The utility model provides a sludge dewatering system for carry out dehydration to the mud in the mud storing tank, its characterized in that, sludge dewatering system includes:
a dehydrator;
the sludge inlet module is used for connecting the sludge storage tank and the dehydrator and comprises a pneumatic pump which is used for pumping the sludge in the sludge storage tank into the dehydrator;
the pressure sensor is connected with the pneumatic pump and used for sensing a real-time pressure value of air transmitted into the dehydrating machine through the pneumatic pump; and
the control module is connected with the pneumatic pump, the pressure sensor and the dehydrator and used for controlling the pneumatic pump and the dehydrator to work according to the real-time pressure value sensed by the pressure sensor.
2. The sludge dewatering system of claim 1, wherein the control module is configured to control the pneumatic pump to stop and the dewatering machine to dewater when the real-time pressure value sensed by the pressure sensor exceeds a preset pressure value in the control module.
3. The sludge dewatering system of claim 1, wherein the control module is configured to control the pneumatic pump to stop and the dewatering machine to dewater when the real-time pressure value sensed by the pressure sensor exceeds a preset pressure value in the control module and the duration of the real-time pressure value exceeds a preset duration.
4. The sludge dewatering system of claim 1, wherein the control module is further configured to control the real-time pressure value of the pressure sensor to be cleared and the pneumatic pump to continue to operate after the dewatering machine completes sludge dewatering.
5. The sludge dewatering system of claim 1, wherein the sludge inlet module further comprises a sludge inlet pipe, two ends of the sludge inlet pipe are respectively connected with the sludge storage tank and the dewatering machine, and the pneumatic pump is arranged on the sludge inlet pipe.
6. The sludge dewatering system of claim 1, wherein the pneumatic pump includes an inlet valve and an outlet valve, the pressure sensor being disposed between the inlet valve and the outlet valve of the pneumatic pump.
7. The sludge dewatering system of claim 1, wherein the dewaterer is a plate and frame sludge dewaterer.
8. The sludge dewatering system of claim 3, wherein the preset pressure value and the preset holding time are obtained from the real-time pressure values collected by the pressure sensor over a period of time.
9. The sludge dewatering system of claim 8, wherein the obtaining of the preset pressure value and the preset holding time comprises the steps of:
obtaining a real-time pressure value of an integral interval, wherein the real-time pressure value of the integral interval refers to the real-time pressure value of air conveyed into the dehydrating machine from the beginning to the stopping of sludge feeding;
obtaining a fluctuation interval of the real-time pressure value according to the real-time pressure value of the complete interval; and
and obtaining the pressure preset value and the preset maintaining time according to the real-time pressure value in the fluctuation interval.
10. The sludge dewatering system of claim 9, wherein the obtaining of the preset pressure value and the preset holding time according to the real-time pressure value within the fluctuation interval comprises:
taking the time when the real-time pressure value finishes the primary fluctuation as the preset maintaining time; and
and taking the average value of all the real-time pressure values collected in the fluctuation interval as the preset pressure value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111081891.4A CN115806376A (en) | 2021-09-15 | 2021-09-15 | Sludge dewatering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111081891.4A CN115806376A (en) | 2021-09-15 | 2021-09-15 | Sludge dewatering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115806376A true CN115806376A (en) | 2023-03-17 |
Family
ID=85481901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111081891.4A Pending CN115806376A (en) | 2021-09-15 | 2021-09-15 | Sludge dewatering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115806376A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000071222A2 (en) * | 1999-05-20 | 2000-11-30 | Se Jun Park | Drainage sludge dehydration and dry system |
| CN202569708U (en) * | 2012-03-06 | 2012-12-05 | 杭州杭氧环保成套设备有限公司 | Sludge feeding mechanism of plate-and-frame press filter with double diaphragms |
| CN107382011A (en) * | 2017-07-31 | 2017-11-24 | 杭州绿夏环境科技有限公司 | Sludge press filtration processing system and sludge press filtration processing method |
| CN206955218U (en) * | 2017-07-20 | 2018-02-02 | 光大环境科技（中国）有限公司 | A kind of sludge treatment device for being collected and transporting to sludge |
| CN109466577A (en) * | 2018-10-31 | 2019-03-15 | 中车株洲电力机车有限公司 | A kind of rail traffic vehicles and its sealing sound insulating method, sealing sound partiting system |
| CN210030348U (en) * | 2018-11-20 | 2020-02-07 | 上海标力环保科技有限公司 | Novel sludge conveying device |
-
2021
- 2021-09-15 CN CN202111081891.4A patent/CN115806376A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000071222A2 (en) * | 1999-05-20 | 2000-11-30 | Se Jun Park | Drainage sludge dehydration and dry system |
| CN202569708U (en) * | 2012-03-06 | 2012-12-05 | 杭州杭氧环保成套设备有限公司 | Sludge feeding mechanism of plate-and-frame press filter with double diaphragms |
| CN206955218U (en) * | 2017-07-20 | 2018-02-02 | 光大环境科技（中国）有限公司 | A kind of sludge treatment device for being collected and transporting to sludge |
| CN107382011A (en) * | 2017-07-31 | 2017-11-24 | 杭州绿夏环境科技有限公司 | Sludge press filtration processing system and sludge press filtration processing method |
| CN109466577A (en) * | 2018-10-31 | 2019-03-15 | 中车株洲电力机车有限公司 | A kind of rail traffic vehicles and its sealing sound insulating method, sealing sound partiting system |
| CN210030348U (en) * | 2018-11-20 | 2020-02-07 | 上海标力环保科技有限公司 | Novel sludge conveying device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4151080A (en) | System and apparatus for control and optimization of filtration process | |
| CN102936089B (en) | Automatic control system of sludge deep dewatering overall process and treatment method | |
| JP5305878B2 (en) | Fiber concentration measuring device, fiber concentration adjusting device, dewatering equipment and dewatering method in sludge | |
| CN105800900B (en) | The efficient depth minus quantizing method of sewage sludge | |
| CN202898208U (en) | Full process automatic control system for deep sludge dehydration | |
| CN115806376A (en) | Sludge dewatering system | |
| US4198298A (en) | System and apparatus for control and optimization of filtration process | |
| CN208626714U (en) | A kind of plate and frame filter press on-line cleaning device | |
| CN209049068U (en) | A kind of feeding device of filter press | |
| CN206726060U (en) | A kind of bypass control device for adjusting influent waste water amount | |
| CN202638073U (en) | Constant pressure filter press system | |
| CN201999772U (en) | Automatic flow rate and pressure control system for reverse osmosis device based on MCU (micro-programmed control unit) | |
| CN214861463U (en) | Salt mud dewatering system of plate and frame filter press | |
| JP6558547B2 (en) | Screw press operation method | |
| CN212292953U (en) | Efficient coal slime pretreatment of water system of power coal preparation plant | |
| CN202785929U (en) | Sludge hydrolytic acidification system adopting membrane bioreactor | |
| CN107434345B (en) | Sludge press plate | |
| CN209259849U (en) | A kind of dilute sulfuric acid waste water treatment system | |
| CN220116409U (en) | Sludge dewatering device | |
| CN210845407U (en) | Mud feeding system of plate-and-frame filter press | |
| CN204973612U (en) | Water purification machine reverse osmosis membrane's self - cleaning device | |
| CN203905144U (en) | Device for recovering wastewater in calcium carbonate wet milling workshops | |
| CN111396292A (en) | Process air compressor intersegmental condensate recovery system | |
| CN220345482U (en) | Fiber recovery processing system, pulping system and pulp production line | |
| CN211255530U (en) | Tin chemical wastewater treatment sediment recovery unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |