CN215209078U - Automatic recycling system for sludge dewatering of sewage system - Google Patents
Automatic recycling system for sludge dewatering of sewage system Download PDFInfo
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- CN215209078U CN215209078U CN202120389023.1U CN202120389023U CN215209078U CN 215209078 U CN215209078 U CN 215209078U CN 202120389023 U CN202120389023 U CN 202120389023U CN 215209078 U CN215209078 U CN 215209078U
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Abstract
The utility model discloses an automatic sludge dewatering recycling system of a sewage system, which comprises a sludge tank, wherein the bottom of the sludge tank is connected with a sludge conditioning tank through a pipeline and a sludge delivery pump; the bottom of the sludge conditioning pool is connected with a membrane filter press through a pipeline and a sludge plunger feeding pump; a sludge storage hopper is arranged at the discharge port of the membrane filter press; the sludge conditioning pool is connected with the PAC dosing system and the PAM dosing system through pipelines. The system has the advantages of simple flow, less equipment, high automation degree, convenient operation, low running cost and lower water content of the treated sludge, is used for a circulating fluidized bed boiler, and achieves the purposes of effectively recycling the sludge, putting an end to the sludge stacking at will and protecting the environment.
Description
Technical Field
The utility model belongs to the sewage treatment field sludge dewatering technique, in particular to automatic recycle system of sewage system sludge dewatering.
Background
Along with the development of social economy, urban and chemical sewage in China is increasing, the sewage treatment capacity is increasing continuously, and the sludge yield is also continuously and rapidly increased. According to incomplete statistics, the wet sludge with water content of 80% is produced by 4000 million tons every year in China, and the wet sludge content is increased by about 10% year by year. At present, the domestic sludge treatment modes mainly comprise five types: composting, drying, burning, burying and land utilization. However, in any of these methods, it is a prerequisite that the sludge water is subjected to dehydration treatment. At present, the dehydration technology is more, and mainly comprises a physical drying method and a mechanical dehydration method, and the patent adopts a technology that a diaphragm filter press filters sludge to dehydrate and then sends the sludge to a boiler for incineration in the mechanical dehydration method, can thoroughly treat the sludge, and utilizes residual heat in the sludge.
Disclosure of Invention
The utility model aims to solve the technical problem that an automatic recycle system of sewage system sludge dewatering is provided, this system flow is simple, equipment is few, degree of automation is high, convenient operation, and the running cost is low, the mud moisture content is lower after handling, supplies circulating fluidized bed boiler to use, reaches effective recovery mud, stops mud and stacks at will, the purpose of environmental protection.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: an automatic sludge dewatering recycling system of a sewage system comprises a sludge tank, wherein the bottom of the sludge tank is connected with a sludge conditioning tank through a pipeline and a sludge delivery pump; the bottom of the sludge conditioning pool is connected with a membrane filter press through a pipeline and a sludge plunger feeding pump; a sludge storage hopper is arranged at the discharge port of the membrane filter press; the sludge conditioning pool is connected with the PAC dosing system and the PAM dosing system through pipelines.
Preferably, the sludge conditioning tank is of a carbon steel structure, and the inside of the sludge conditioning tank is subjected to anticorrosion treatment.
Preferably, the bottom of the sludge tank is provided with an aeration pipe.
Preferably, a remote transmission liquid level meter is arranged in the sludge conditioning tank, and the remote transmission liquid level meter is electrically connected with the sludge conveying pump to control the start and stop of the sludge conveying pump.
Preferably, the sludge conditioning tank is provided with a variable-frequency stirring motor, and the stirring speed can be adjusted by the variable-frequency stirring motor, so that the optimal stirring flocculation effect is ensured.
Furthermore, an ion concentration sensor and a turbidity sensor can be optionally arranged in the sludge conditioning tank to monitor the flocculation effect; the ion concentration sensor or the turbidity sensor is electrically connected with the variable-frequency stirring motor through the PLC to form a control loop so as to automatically control the rotating speed of the variable-frequency stirring motor; a transparent observation port can be formed in the outer wall of the sludge conditioning tank, manual adjustment can be performed through manual observation, or the flocculation effect can be monitored through a correlation photoelectric sensor and automatic control can be formed.
Preferably, the PAC dosing system and the PAM dosing system are connected with a control center of the sewage system, the dosing amount is set through a program, the dosing is started and stopped automatically, and the automatic and accurate dosing is achieved.
Preferably, the membrane filter press and the sludge plunger feed pump are electrically connected with the PLC controller to form a control loop; the PLC controller is preferably a Siemens S7-300PLC controller; the start and stop of the sludge plunger feed pump are controlled by controlling the squeezing time, the forward blowing time, the back blowing time and the discharging start and stop of the membrane filter press in a feedback way.
Further, the diaphragm filter press filter presses and dehydrates the sludge, the wastewater returns to a sewage system for retreatment, and the dehydrated sludge is discharged into a sludge storage hopper for storage, so that the sludge is convenient to transport.
The utility model has the advantages that:
compared with the prior art, the utility model has the advantages of simple flow, less equipment, high automation degree, convenient operation, low operation cost, low water content of the treated sludge, convenient use for a circulating fluidized bed boiler and great labor intensity saving; the sludge water treatment is realized, and the recycling of the sludge is considered, so that the sludge is prevented from being randomly stacked, and the environment is protected.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The reference numbers in the figures are: sludge impoundment 1, aeration pipe 2, sludge transfer pump 3, sludge conditioning pond 4, variable frequency agitator motor 5, teletransmission level gauge 6, mud plunger charge pump 7, membrane filter press 8, PAC charge system 9, PAM charge system 10, store up mud fill 11.
Detailed Description
As shown in figure 1, the automatic sludge dewatering recycling system for the sewage system comprises a sludge tank 1, wherein the bottom of the sludge tank 1 is connected with a sludge conditioning tank 4 through a pipeline and a sludge delivery pump 3; the bottom of the sludge conditioning pool 4 is connected with a membrane filter press 8 through a pipeline and a sludge plunger feed pump 7; a sludge storage hopper 11 is arranged at the discharge hole of the membrane filter press 8; the sludge conditioning tank 4 is connected with a PAC dosing system 9 and a PAM dosing system 10 through pipelines.
Preferably, the sludge conditioning tank 4 is of a carbon steel structure, and the inside of the sludge conditioning tank is subjected to anticorrosion treatment.
Preferably, the bottom of the sludge tank 1 is provided with an aeration pipe 2.
Preferably, a remote transmission liquid level meter 6 is arranged in the sludge conditioning tank 4, and the remote transmission liquid level meter 6 is electrically connected with the sludge delivery pump 3 to control the start and stop of the sludge delivery pump 3.
Preferably, the sludge conditioning tank 4 is provided with a variable-frequency stirring motor 5, and the variable-frequency stirring motor 5 can adjust the stirring speed to ensure the optimal stirring flocculation effect.
Further, an ion concentration sensor and a turbidity sensor can be optionally arranged in the sludge conditioning tank 4 to monitor the flocculation effect; the ion concentration sensor or the turbidity sensor is electrically connected with the variable-frequency stirring motor 5 through the PLC to form a control loop so as to automatically control the rotating speed of the variable-frequency stirring motor 5; a transparent observation port can be arranged on the outer wall of the sludge conditioning tank 4, manual adjustment can be carried out through manual observation, or the flocculation effect can be monitored through a correlation photoelectric sensor and automatic control can be formed.
Preferably, the PAC dosing system 9 and the PAM dosing system 10 are connected with a control center of a sewage system, the dosing amount is set through a program, the automatic start-stop dosing is carried out, and the automatic accurate dosing is realized.
Preferably, the membrane filter press 8 and the sludge plunger feed pump 7 are electrically connected with the PLC controller to form a control loop; the PLC controller is preferably a Siemens S7-300PLC controller; the start and stop of the sludge plunger feed pump 7 are feedback controlled by controlling the squeezing time, the forward blowing time, the back blowing time and the discharging start and stop of the membrane filter press 8.
Further, the diaphragm filter press 8 filter-presses and dehydrates the sludge, the wastewater returns to the sewage system for retreatment, and the dehydrated sludge is unloaded into the sludge storage hopper 11 for storage, thereby being convenient for transportation.
The working principle of the automatic sludge dewatering recycling system of the sewage system is as follows:
the bottom of the sludge tank 1 is provided with an aeration pipe 2, and the air in the aeration pipe 2 stirs the sludge precipitated at the bottom of the sludge tank 1 into turbid sludge water; the sludge conveying pump 3 sends suspension sludge water into the sludge conditioning pool 4, the liquid level is controlled by a liquid level meter, and the sludge conveying pump 3 is automatically stopped when the liquid level of the sludge conditioning pool 4 reaches 70%; a PAC dosing system 9 and a PAM dosing system 10 add medicaments to the conditioning tank, and a variable frequency stirring motor 5 mixes the medicaments and sludge water for flocculation; the sludge plunger feed pump 7 sends the flocculated sludge to a membrane filter press 8; the membrane filter press 8 discharges the sludge to a sludge storage hopper 11 after filter pressing dehydration and sludge dehydration, and conveys the sludge to the outside for utilization;
in concrete application, adopt aeration pipe 2 in the sludge impoundment 1 with sludge water misce bene, mud content 2-5%, send into sludge conditioning tank 4 through the sludge pump and take care of, add PAC, PAM flocculation, through the stirring rake of taking the frequency conversion with medicament and sewage misce bene, 8 filter-pressing dewaters of high-efficient membrane filter press are squeezed into in the pressurization of rethread mud plunger charge pump 7, the mud moisture content behind the desorption moisture is less than 65%, store away through storing up mud fill 11, supply the boiler to use, the moisture of desorption returns sewage system.
The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (6)
1. The utility model provides an automatic recycle system of sewage system sludge dewatering which characterized in that: the device comprises a sludge tank (1), wherein the bottom of the sludge tank (1) is connected with a sludge conditioning tank (4) through a pipeline and a sludge delivery pump (3); the bottom of the sludge conditioning pool (4) is connected with a membrane filter press (8) through a pipeline and a sludge plunger piston feeding pump (7); a sludge storage hopper (11) is arranged at the discharge hole of the membrane filter press (8); the sludge conditioning tank (4) is connected with a PAC dosing system (9) and a PAM dosing system (10) through pipelines.
2. The automatic recycling system of sewage system sludge dewatering of claim 1, characterized in that: and an aeration pipe (2) is arranged at the bottom of the sludge tank (1).
3. The automatic recycling system of sewage system sludge dewatering of claim 2, characterized in that: the sludge conditioning tank (4) is internally provided with a remote transmission liquid level meter (6), and the remote transmission liquid level meter (6) is electrically connected with the sludge delivery pump (3) to control the start and stop of the sludge delivery pump (3).
4. The automatic recycling system of sewage system sludge dewatering of claim 1, characterized in that: the sludge conditioning tank (4) is provided with a variable-frequency stirring motor (5).
5. The automatic recycling system of sewage system sludge dewatering of claim 3, characterized in that: the PAC dosing system (9) and the PAM dosing system (10) are connected with a control center of the sewage system.
6. The automatic recycling system of sewage system sludge dewatering of claim 1, characterized in that: and the membrane filter press (8) and the sludge plunger feeding pump (7) are electrically connected with the PLC to form a control loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120389023.1U CN215209078U (en) | 2021-02-22 | 2021-02-22 | Automatic recycling system for sludge dewatering of sewage system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120389023.1U CN215209078U (en) | 2021-02-22 | 2021-02-22 | Automatic recycling system for sludge dewatering of sewage system |
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| CN215209078U true CN215209078U (en) | 2021-12-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114477693A (en) * | 2022-03-07 | 2022-05-13 | 中原环保股份有限公司 | Slag collecting device and sludge dewatering treatment system |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114477693A (en) * | 2022-03-07 | 2022-05-13 | 中原环保股份有限公司 | Slag collecting device and sludge dewatering treatment system |
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