CN216273681U - Automatic control sludge discharge system of sewage station - Google Patents

Abstract

The utility model discloses an automatic control sludge discharge system for a sewage station, which comprises a sludge settling tank, a sludge storage tank, a sludge dehydrator, a sludge storage tank and a PLC cabinet, wherein the sludge settling tank is connected with the sludge storage tank through a first submersible pump; store up and be equipped with input level transmitter in the mud groove for detect the liquid level that stores up in the mud groove, be equipped with ultrasonic sensor in the storage mud jar, be equipped with PLC MODBUS RTU communication module in the PLC cabinet, PLC MODBUS RTU communication module and immersible pump one, immersible pump two, auger, input level transmitter and ultrasonic sensor electric connection. The utility model relates to the technical field of sludge discharge of sewage stations, and particularly provides an automatic sludge discharge control system for a sewage station, which has high automation level and high control precision, avoids the risk of personnel opening a water tank cover plate to fall, and avoids the hidden danger of poisoning caused by toxic gas.

Description

Automatic control sludge discharge system of sewage station

Technical Field

The utility model relates to the technical field of sludge discharge of sewage stations, in particular to an automatic sludge discharge control system of a sewage station.

Background

In the prior art, the flow of sewage flowing from a settling tank to a sludge storage tank needs to be manually controlled, then personnel observe the liquid level of the sludge-containing sewage in the sludge storage tank to control the starting of a sludge dewatering machine, and finally 4 sections of packing augers are sequentially started to allow the sludge to enter a sludge storage tank. After mud got into storage mud tank, personnel will observe the mud level of storage mud tank and the liquid level that contains mud sewage in storage mud groove constantly, be used for controlling entire system's stopping, consequently it is very inconvenient to lead to the mud process of arranging, has consumeed a large amount of manual works, will constantly lift the precipitation tank simultaneously, store up mud groove, the apron of storage mud tank observes the liquid level, increased and fallen risk and personnel in the basin and received the poisoning probability of gaseous such as hydrogen sulfide, methane, to personnel's safety great hidden danger.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned condition, for overcoming prior art's defect, this scheme provides a sewage station automation control mud discharging system, has improved the automation level, increases control accuracy, solves and consumes artificial drawback, stops personnel to open the risk that basin apron falls, avoids because of toxic gas poisoned hidden danger.

The technical scheme adopted by the utility model is as follows: the automatic control sludge discharge system for the sewage station comprises a sludge settling tank, a sludge storage tank, a sludge dewatering machine, a sludge storage tank and a PLC cabinet, wherein the sludge settling tank is connected with the sludge storage tank through a first submersible pump, sludge-containing sewage in the sludge settling tank is pumped to the sludge storage tank, the sludge storage tank is connected with the sludge dewatering machine through a second submersible pump, the sludge-containing sewage in the sludge storage tank is pumped to the sludge dewatering machine, a medicament polyacrylamide is added into the sludge dewatering machine, the sludge dewatering machine and the sludge storage tank are connected through an auger, and dewatered sludge is discharged to the auger and then is transmitted to the sludge storage tank; store up and be equipped with input level transmitter in the mud groove for detect the liquid level that stores up in the mud groove, be equipped with ultrasonic sensor in the storage mud jar, detect the mud level, be equipped with PLC MODBUS RTU communication module in the PLC cabinet, PLC MODBUS RTU communication module and immersible pump one, immersible pump two, auger, input level transmitter and ultrasonic sensor electric connection.

Further, the auger includes auger one, auger two, auger three and auger four, auger one, auger two, auger three and auger four connect gradually, auger one is connected with the sludge dewaterer, auger four is connected with the storage mud jar, and before the sludge dewaterer got rid of mud, just will start earlier auger one, auger two, auger three and auger four, start the order and be the first auger that starts, when auger four rotates, the electric current does not have the warning, starts auger three again, analogizes with this, until starting auger one, just can normally transmit mud to storing up the mud jar at last.

Furthermore, PLC is equipped with the control button who is used for starting auger one, auger two, auger three, auger four, immersible pump one, immersible pump two respectively on the cabinet to realize according to actual need with manual control's purpose, improve the security.

Furthermore, a calculation module is arranged in the PLC cabinet and used for collecting and calculating detection data of the input type liquid level transmitter and the ultrasonic sensor.

Furthermore, be equipped with the HMI screen on the PLC cabinet for the mud level height that shows that ultrasonic sensor detected and the liquid level curve that input liquid level transmitter detected.

Furthermore, one side of the sludge storage tank is connected with a Rotz fan through an aeration pipeline.

Preferably, the drop-in level transmitter is a corrosion resistant drop-in level transmitter.

Preferably, the first submersible pump and the second submersible pump are both variable frequency pumps.

The utility model with the structure has the following beneficial effects: this scheme is through automated control, improves automatic level, increases control accuracy, solves to consume artificial drawback, stops personnel to open the risk that basin apron falls, avoids because of the toxic hidden danger of toxic gas poisoning.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic view of the overall structure of the present embodiment.

The system comprises a sludge settling tank 1, a sludge storage tank 2, a sludge dehydrator 3, a sludge dehydrator 4, a sludge storage tank 5, a PLC cabinet 6, a first submersible pump, a second submersible pump 8, a throwing-in type liquid level transmitter 9, an ultrasonic sensor 10, a first packing auger, a second packing auger 12, a third packing auger, a fourth packing auger, a 14, an HMI screen 15 and a Rotz fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in figure 1, the automatic control sludge discharge system for the sewage station comprises a sludge settling tank 1, a sludge storage tank 2, a sludge dewatering machine 3, a sludge storage tank 4 and a PLC cabinet 5, wherein the sludge settling tank 1 is connected with the sludge storage tank 2 through a first submersible pump 6, the sludge storage tank 2 is connected with a sludge dewatering machine 3 through a second submersible pump 7, and the sludge dewatering machine 3 is connected with the sludge storage tank 4 through a packing auger; the mud storage tank 2 is provided with a throwing-in type liquid level transmitter 8, the mud storage tank 4 is provided with an ultrasonic sensor 9, the PLC cabinet 5 is provided with a PLC MODBUS RTU communication module, and the PLC MODBUS RTU communication module is electrically connected with the first submersible pump 6, the second submersible pump 7, the auger, the throwing-in type liquid level transmitter 8 and the ultrasonic sensor 9.

Wherein, the auger includes auger one 10, auger two 11, auger three 12 and auger four 13, auger one 10, auger two 11, auger three 12 and auger four 13 connect gradually, auger one 10 is connected with sludge dewaterer 3, auger four 13 is connected with storage mud jar 4, be equipped with on the PLC cabinet 5 and be used for starting auger one 10 respectively, auger two 11, auger three 12, auger four 13, immersible pump one 6, the control button of immersible pump two 7, be equipped with the calculation module in the PLC cabinet 5, the calculation module is used for gathering and calculating input type liquid level transmitter 8, ultrasonic sensor 9's detected data, be equipped with HMI screen 14 on the PLC cabinet 5, one side of storing up mud groove 2 is connected with rotz fan 15 through the aeration pipeline, input type liquid level transmitter 8 is anticorrosive input type liquid level transmitter, immersible pump one 6 and immersible pump two 7 are the variable frequency pump.

The first submersible pump 6 pumps the sludge-containing sewage to the sludge storage tank 2, the PLC MODBUS RTU communication module is used for controlling a frequency converter on the first submersible pump 6 to adjust the pumping frequency so as to control the flow, the pumped sludge amount is not influenced, the single tank flora is ensured, the sludge concentration is detected, the start and stop of the first submersible pump 6 are controlled, the sludge concentration is high, the first submersible pump 6 is started, the sludge concentration is low, the first submersible pump 6 is stopped, and the overall control process is more accurate; the corrosion-resistant input type liquid level transmitter 8 measures the liquid level, transmits the liquid level to the calculation module, and feeds the liquid level back to the HMI screen 14 to form a liquid level curve, and because the detection object of the corrosion-resistant input type liquid level transmitter 8 is clear water, the compensation is increased according to the proportion relation between the sludge concentration of the sludge-containing sewage and the clear water, the sludge precipitation is prevented, and the sludge-containing sewage concentration is uniform by the aeration system; according to the liquid level curve of the sludge storage tank 2, the PLC cabinet 5 controls the start and stop of the sludge dewatering machine 3 through a PLC MODBUS RTU communication module, wherein the sludge dewatering machine 3 firstly starts a sludge pump II 7, sludge-containing sewage in the sludge storage tank 2 is pumped to the sludge dewatering machine 3, a medicament polyacrylamide is added, then flocculation stirring is carried out, the sludge-containing sewage added with the medicament is sent to a butterfly screw sheet main shaft for sludge dewatering, dewatered sludge is discharged to a packing auger, the sludge discharge degree needs to be adjusted, the frequency and the medicament adding amount of the butterfly screw sheet main shaft are needed to be adjusted, before the sludge dewatering machine 3 removes the sludge, the first packing auger 10, the second packing auger 11, the third packing auger 12 and the fourth packing auger 13 are started firstly, when the fourth packing auger 13 rotates and the current does not alarm, the third packing auger 12 is started, the analogy is repeated until the first packing auger 10 is started, the sludge can be normally transmitted to the sludge storage tank 4, and the sludge of the packing auger is transmitted to the sludge storage tank 4, the mud level detected by the ultrasonic sensor 9 is transmitted to the PLC cabinet 5 for controlling the stop of the whole system, and the height of the mud level is displayed on the HMI screen 14.

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.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. The utility model provides a mud system is arranged in sewage station automatic control which characterized in that: the sludge dewatering device comprises a sludge settling tank, a sludge storage tank, a sludge dewatering machine, a sludge storage tank and a PLC cabinet, wherein the sludge settling tank is connected with the sludge storage tank through a first submersible pump; store up and be equipped with input level transmitter in the mud groove for detect the liquid level that stores up in the mud groove, be equipped with ultrasonic sensor in the storage mud jar, be equipped with PLC MODBUS RTU communication module in the PLC cabinet, PLC MODBUS RTU communication module and immersible pump one, immersible pump two, auger, input level transmitter and ultrasonic sensor electric connection.

2. The automated controlled sludge discharge system for sewage plants according to claim 1, wherein: the packing auger comprises a first packing auger, a second packing auger, a third packing auger and a fourth packing auger, the first packing auger, the second packing auger, the third packing auger and the fourth packing auger are sequentially connected, the first packing auger is connected with the sludge dewatering machine, and the fourth packing auger is connected with the sludge storage tank.

3. The automated controlled sludge discharge system for sewage plants according to claim 2, wherein: and the PLC cabinet is provided with control buttons which are respectively used for starting the first packing auger, the second packing auger, the third packing auger, the fourth packing auger, the first submersible pump and the second submersible pump.

4. The automated controlled sludge discharge system for sewage plants according to claim 1, wherein: and a calculation module is arranged in the PLC cabinet and used for collecting and calculating detection data of the input type liquid level transmitter and the ultrasonic sensor.

5. The automated controlled sludge discharge system for sewage plants according to claim 1, wherein: an HMI screen is arranged on the PLC cabinet.

6. The automated controlled sludge discharge system for sewage plants according to claim 1, wherein: one side of the sludge storage tank is connected with a Rotz fan through an aeration pipeline.

7. The automated controlled sludge discharge system for sewage plants according to claim 1, wherein: the input type liquid level transmitter is an anti-corrosion input type liquid level transmitter.

8. The automated controlled sludge discharge system for sewage plants according to claim 1, wherein: the first submersible pump and the second submersible pump are both variable frequency pumps.

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