阅读说明：本技术 恒压供泥自动加药系统 (Constant-pressure mud-supplying automatic dosing system ) 是由 赵有强 谢建康 陈凯 于志朋 于 2021-07-22 设计创作，主要内容包括：本发明公开了恒压供泥自动加药系统,包括自动加药系统,所述自动加药系统包括中控室、主站PLC、加药控制柜、进泥控制柜、进药流量计、加药泵、进泥流量计和供泥泵,进泥流量计、进泥控制柜和供泥泵、进泥控制柜之间通过信号采集器和反馈器进行连接,本发明涉及污水处理技术领域。该恒压供泥自动加药系统,解决了进出泥管道冗杂和阀门众多,进泥泵效率低下,而且由于多次改造各种管道错综复杂,很难分辨,进泥泵会因设备的磨损导致流量不稳定,影响脱泥机正常运行,且维修费用高,以及脱泥机加药量通过人工手动控制,加药量难控制精准,与进泥量不能精准匹配,难免造成絮凝剂药品的浪费或影响脱泥机正常运行的问题。(The invention discloses a constant-pressure mud-feeding automatic dosing system which comprises an automatic dosing system, wherein the automatic dosing system comprises a central control room, a master station PLC, a dosing control cabinet, a mud inlet control cabinet, a medicine inlet flow meter, a dosing pump, a mud inlet flow meter and a mud supply pump, wherein the mud inlet flow meter, the mud inlet control cabinet, the mud supply pump and the mud inlet control cabinet are connected through a signal collector and a feedback device. This mud automatic reagent feeding system is supplied to constant voltage, it is numerous with the valve to have solved business turn over mud pipeline redundantly miscellaneous, it is low to advance dredge pump inefficiency, and because the various pipeline complicacies of transformation many times, it is difficult to distinguish, it can lead to the flow unstability because of the wearing and tearing of equipment to advance dredge pump, influence desliming machine normal operating, and the maintenance cost is high, and desliming machine dosing passes through artifical manual control, it is accurate to add the dose uncontrollable, can not accurate the matching with the mud volume of advancing, the problem of the extravagant or influence desliming machine normal operating that leads to the fact the flocculating agent medicine is inevitable.)

1. Constant pressure supplies mud automatic reagent feeding system, including automatic reagent feeding system (1), its characterized in that: the automatic medicine adding system (1) comprises a central control room (11), a master station PLC (12), a medicine adding control cabinet (13), a mud feeding control cabinet (14), a medicine feeding flow meter (15), a medicine adding pump (16), a mud feeding flow meter (17) and a mud supplying pump (18);

electric connection is realized through the wire between the output of well accuse room (11) and the input of main website PLC (12), electric connection is realized through the wire between the output of main website PLC (12) respectively with add medicine switch board (13) and the input of advancing mud switch board (14), realize electric connection through the wire between the output of adding medicine switch board (13) and the input of advancing medicine flowmeter (15) and adding medicine pump (16), it realizes electric connection through the wire between the output of advancing mud switch board (14) and the input of advancing mud flowmeter (17) and supplying mud pump (18).

2. The constant pressure mud supply automatic dosing system of claim 1, characterized in that: the medicine feeding flow meter (15) and the medicine feeding control cabinet (13) are communicated through a signal collector, and the medicine feeding pump (16) is adjusted through a feedback device between the medicine feeding pump (16) and the medicine feeding control cabinet (13).

3. The constant pressure mud supply automatic dosing system of claim 1, characterized in that: and data are transmitted between the mud inlet flowmeter (17) and the mud inlet control cabinet (14) through a signal collector, and the mud supply pump (18) is adjusted between the mud supply pump (18) and the mud inlet control cabinet (14) through a feedback device.

4. The constant pressure mud supply automatic dosing system of claim 1, characterized in that: the medicine feeding flow meter (15) is used for adding medicine quantity during medicine feeding.

5. The constant pressure mud supply automatic dosing system of claim 1, characterized in that: the mud inlet flowmeter (17) is used for measuring mud in mud inlet.

6. The constant pressure mud supply automatic dosing system of claim 1, characterized in that: the rear end of the sludge supply pump (18) is provided with a pressure tank and a pressure sensor.

7. The constant pressure mud supply automatic dosing system of claim 1, characterized in that: the master station PLC (12) is provided with an operation interface, and the operation interface is provided with any one of a manual mode and an automatic mode.

8. The constant pressure mud supply automatic dosing system of claim 1, characterized in that: the master station PLC (12), the dosing control cabinet (13) and the mud feeding control cabinet (14) are used for master control and independent remote control.

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a constant-pressure sludge-supplying automatic dosing system.

Background

Sewage treatment is a process of purifying sewage to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and more people enter daily life of common people, but residual sludge of a sewage treatment plant needs to be transported and disposed after being centrifugally dewatered by a desliming machine, and a sludge inlet system and a dosing system have various problems at present.

The mud inlet and outlet pipeline is complicated, the efficiency of the mud inlet pump is low, the valves of the mud inlet and outlet pipeline are numerous, a plurality of valves are required to be opened and closed when the mud inlet is adjusted every time, and the mud inlet pump is difficult to distinguish due to the fact that various pipelines are repeatedly reconstructed and complicated. The mud pump that advances can lead to the flow unstable because of the wearing and tearing of equipment, influences desliming machine normal operating, and the maintenance cost is high, and desliming machine adds the dose and passes through artifical manual control, and it is accurate to add the dose hard control, and with advance mud volume can not accurate match, leads to the fact the waste of flocculating agent medicine or influences desliming machine normal operating unavoidably.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a constant-pressure mud-supplying automatic dosing system, which solves the problems that a mud inlet and outlet pipeline is redundant in impurities, a mud inlet pump is low in efficiency, a plurality of valves are arranged in the mud inlet and outlet pipeline, a plurality of valves are required to be opened and closed each time mud is regulated, and the valves are complicated and complicated due to repeated reconstruction of various pipelines and are difficult to distinguish, the mud inlet pump can cause unstable flow due to the abrasion of equipment, the normal operation of a mud remover is influenced, the maintenance cost is high, the dosing amount of the mud remover is manually controlled, the dosing amount is difficult to control accurately, the dosing amount cannot be accurately matched with the mud inlet amount, and the waste of flocculating agent medicines or the normal operation of the mud remover is difficult to avoid.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: constant pressure supplies mud automatic reagent feeding system, including the automatic reagent feeding system, the automatic reagent feeding system includes well control room, main website PLC, adds medicine switch board, advances mud switch board, advances the medicine flowmeter, adds the medicine pump, advances mud flowmeter and supplies the dredge pump.

Electric connection is realized through the wire between the output of well accuse room and main website PLC's the input, main website PLC's the output respectively with add the medicine switch board and advance and realize electric connection through the wire between the input of mud switch board, it realizes electric connection through the wire between the output of medicine switch board and the input of advancing the medicine flowmeter and adding the medicine pump, it realizes electric connection through the wire between the output of mud switch board and the input of advancing mud flowmeter and supplying the mud pump.

Preferably, the medicine inlet flow meter and the medicine adding control cabinet transmit data through a signal collector, and the medicine adding pump and the medicine adding control cabinet are adjusted through a feedback device.

Preferably, data transmission is carried out between the mud inlet flowmeter and the mud inlet control cabinet through a signal collector, and adjustment of the mud supply pump is carried out between the mud supply pump and the mud inlet control cabinet through a feedback device.

Preferably, the medicine feeding flow meter is used for feeding medicine.

Preferably, the mud inflow flowmeter is used for measuring mud in mud inflow.

Preferably, the rear end of the sludge supply pump is provided with a pressure tank and a pressure sensor.

Preferably, the master station PLC is provided with an operation interface, and the operation interface is provided with any one of a manual mode and an automatic mode.

Preferably, the master station PLC, the dosing control cabinet and the mud feeding control cabinet are used for master control and independent remote control.

Advantageous effects

The invention provides a constant-pressure mud-supplying automatic dosing system. Compared with the prior art, the method has the following beneficial effects:

1. the constant-pressure automatic mud feeding system comprises two 7.5KW mud feeding pumps, a pressure tank and a pressure sensor, wherein the two 7.5KW mud feeding pumps replace three 7.5KW rotor pumps and four 7.5KW screw pumps, the rear ends of the mud feeding pumps are additionally provided with the pressure tank and the pressure sensor, pressure parameters are uploaded to a master station PLC, the mud feeding pumps firstly convey mud to the pressure tank and then respectively convey the mud to 5 mud removers through 5 pipelines, each pipeline is provided with a mud feeding flowmeter, normally, 3 mud removers and 1 mud feeding pump can be opened, 2 mud feeding pumps can be opened under special conditions, 1 mud feeding pump can be reserved, the system can automatically select a plurality of mud feeding pumps according to set pressure, the frequency of the mud feeding pumps is adjusted according to the set pressure, the pipeline and valves are detected by replacing the three 7.5KW rotor pumps and the four 7.5KW screw pumps, the problems that the mud feeding pump is redundant and the efficiency is low, and the mud feeding pipeline and the valves are numerous, all need switch a lot of valves when adjusting into mud at every turn, because reform transform various pipeline complicacies many times, distinguish very hard moreover, advance the dredge pump and can lead to the flow unstable because of the wearing and tearing of equipment, influence desliming machine normal operating, and the maintenance cost is high.

2. This mud automatic reagent feeding system is supplied to constant voltage, make the control of adding medicine pump be connected to on main website PLC through adding the medicine switch board, through setting for the parameter, guarantee to advance mud flow and advance the dose and match, in addition through advancing mud flow meter and advance when the medicine flowmeter feels into mud volume and adding the medicine change, thereby main website PLC will adjust the frequency of adding the medicine pump respectively and adjust the frequency of adding the medicine volume and supplying the mud pump and advance mud volume, certain proportion can be guaranteed, it passes through artifical manual control to solve desliming machine and adds the medicine volume, it is accurate to add the difficult control of medicine volume, can not accurate the matching with advancing mud volume, the problem of the extravagant or the influence desliming machine normal operating that leads to the fact the flocculating agent medicine is inevitable.

Drawings

FIG. 1 is a block diagram of the system of the present invention;

FIG. 2 is a flow chart of the dosing system of the present invention.

In the figure: 1. an automatic dosing system; 11. a central control room; 12. a master station PLC; 13. a dosing control cabinet; 14. a mud inlet control cabinet; 15. a medicine inlet flow meter; 16. a dosing pump; 17. a mud inflow flowmeter; 18. a mud supply pump.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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 invention.

Referring to fig. 1, an embodiment of the present invention provides a technical solution: the constant-pressure mud-feeding automatic dosing system comprises an automatic dosing system 1, wherein the automatic dosing system 1 comprises a central control room 11, a master station PLC12, a dosing control cabinet 13, a mud feeding control cabinet 14, a mud feeding flow meter 15, a dosing pump 16, a mud feeding flow meter 17 and a mud feeding pump 18, the output end of the central control room 11 is electrically connected with the input end of the master station PLC12 through a lead, the output end of the master station PLC12 is electrically connected with the input ends of the dosing control cabinet 13 and the mud feeding control cabinet 14 through leads, the output end of the dosing control cabinet 13 is electrically connected with the input ends of the mud feeding flow meter 15 and the dosing pump 16 through leads, the output end of the mud feeding control cabinet 14 is electrically connected with the input ends of the mud feeding flow meter 17 and the mud feeding pump 18 through leads, the data transmission is carried out between the mud feeding flow meter 15 and the dosing control cabinet 13 through a signal collector, the dosing pump 16 is regulated through a feedback device between the dosing pump 16 and the dosing control cabinet 13, enter mud flowmeter 17 and advance and carry out the transmission of data through signal collector between the mud switch board 14, supply mud pump 18 and advance and carry out the regulation that supplies mud pump 18 through the feedback ware between the mud switch board 14, the dose when advancing medicine flowmeter 15 and being used for adding medicine, mud volume when advancing mud flowmeter 17 and being used for advancing mud, the rear end that supplies mud pump 18 is provided with overhead tank and pressure sensor, master station PLC12 is provided with operation interface, and operation interface is provided with manual and automatic arbitrary one kind mode, master station PLC12, it is used for total control and independent remote control with advancing mud switch board 14 to add medicine switch board 13.

Referring to fig. 2, when in use, two 7.5KW mud supply pumps 18 are used for replacing three 7.5KW rotor pumps and four 7.5KW screw pumps in the prior art, a pressure tank and a pressure sensor are additionally arranged at the rear end of the mud supply pump 18, a master station PLC12 is uploaded with pressure parameters, the mud supply pump 18 firstly conveys mud to the pressure tank, and then the mud is respectively conveyed to 5 mud removers through 5 pipelines, each pipeline is provided with a mud inlet flowmeter 17, 3 mud removers and 1 mud supply pump 18 are required under normal conditions, 2 mud supply pumps 18 may be started under special conditions, and 1 mud supply pump 18 is reserved, the system can automatically select a plurality of mud supply pumps 18 according to set pressure, and the frequency of the mud supply pump 18 is adjusted according to the set pressure.

The working modes are manual operation and automatic operation;

firstly, during manual operation, one of the mud supply pumps 18 can be independently switched on and off, the frequency can be randomly adjusted manually, after the system pressure is set, the master station PLC12 system can automatically start the mud supply pump 18 according to the set pressure through the mud inlet control cabinet 14 when the system automatically operates, the sequence of starting the mud supply pump 18 is set on a touch screen, under the condition that the system can start the mud supply pump 18 in sequence according to the setting and needs to start a plurality of pumps, for example, the set sequence is 1 → 2 → 3, the system can start the mud supply pump 18 according to the sequence, if the mud supply pump fails, the system can automatically change the start sequence, for example, the start sequence is 1 → 2 → 3, after the pump 1 fails, the system can change the start sequence into 2 → 3 → 1, and when the pump 2 fails, the system can change the start sequence into 3 → 1 → 2. For example, the starting sequence is 1 → 2 → 3, when the pump No. 2 has a fault, the starting sequence is modified to be 1 → 3 → 2, no manual intervention is needed at all, the system can automatically switch the operation according to the condition of the pump, and simultaneously the state of each pump is displayed on a touch screen, wherein two modes are selected on the touch screen.

Manual operation mode: when the sludge supply pump 18 needs to be manually started, a manual operation picture is entered, the operation mode selection button is firstly selected to be manual, a frequency required value is set, then the manual start is clicked, and the pump can be manually operated after being selected.

Automatic operation mode: the automatic operation mode is selected by the mud pump 18: the system can automatically control the frequency of the mud pump 18 according to the set pressure after the system is selected to be automatic and the pressure value of the system is set and the system is operated at constant pressure, and the system can stop working when the system is stopped or the vehicle is changed in the middle.

Finally, the medicine adding pump 16 is connected to the master station PLC12 through the control of the medicine adding control cabinet 13, matching of mud inlet flow and medicine inlet amount is guaranteed through setting parameters, and in addition, when the mud inlet amount and medicine adding change are sensed through the mud inlet flow meter 17 and the medicine inlet flow meter 15, the master station PLC12 can respectively adjust the frequency of the medicine adding pump 16, so that the medicine adding amount and the frequency of the mud supply pump 18 are adjusted, and a certain proportion can be guaranteed.

And those not described in detail in this specification are well within the skill of those in the art.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.