CN212327767U - Sludge drying machine export tail gas processing system - Google Patents

Sludge drying machine export tail gas processing system Download PDF

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Publication number
CN212327767U
CN212327767U CN202021410217.7U CN202021410217U CN212327767U CN 212327767 U CN212327767 U CN 212327767U CN 202021410217 U CN202021410217 U CN 202021410217U CN 212327767 U CN212327767 U CN 212327767U
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China
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water
tail gas
outlet
clarifier
sludge
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CN202021410217.7U
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Chinese (zh)
Inventor
葛春亮
丁得龙
戴豪波
赵国萍
张力
潘超群
饶研子
郑俊杰
施园
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Zhejiang Tiandi Environmental Protection Technology Co Ltd
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Zhejiang Tiandi Environmental Protection Technology Co Ltd
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Abstract

The utility model relates to a sludge drier outlet tail gas treatment system, which comprises a spray flushing device, a water-cooled condenser, a tail gas fan, a clarifier, a circulating flushing water tank, a circulating flushing water pump, a bottom sludge conveying pump and a wet sludge bin; the tail gas outlet of the spraying and flushing device is connected to the tail gas inlet of the water-cooled condenser, and the tail gas outlet of the water-cooled condenser is connected to a boiler blower through a tail gas fan; a water outlet at the bottom of the spraying and flushing device is connected to a water inlet of the clarifier; a condensed water outlet of the water-cooled condenser is connected to a water inlet of the clarifier; the overflow outlet at the top of the clarifier is connected to the water inlet of the circulating flushing water tank. The utility model has the advantages that: the system removes dust by spraying, washing and cleaning, has sufficient gas-liquid contact, high dust removal efficiency and reliable system operation, can efficiently remove dust in the sludge drying tail gas, effectively avoids the blockage of subsequent pipelines and ensures the continuous operation of the sludge drying system.

Description

Sludge drying machine export tail gas processing system
Technical Field
The utility model relates to a sludge drying technical field, concretely relates to sludge drying machine export tail gas processing system.
Background
The sludge produced in the sewage treatment process is a heterogeneous body consisting of organic debris, bacterial bodies, inorganic particles, colloids and the like. The treatment of the sludge is gradually mature through various treatment methods such as marine abandonment, land landfill, incineration and the like, and the incineration of the sludge at present has great advantages in the final treatment method of the sludge.
Sludge cannot be simply used as fuel due to high water content, generally needs to be dried, sludge with low calorific value is converted into usable fuel with high calorific value, and then the sludge fuel is combusted through an incinerator. In the sludge drying process, water vapor formed by water in the sludge is gathered in the drying machine, and the water vapor is taken out of the drying machine by ventilation to form sludge drying tail gas. Inevitable can carry a large amount of dust in the sludge drying tail gas, generally set up cyclone on sludge drying machine tail gas outlet pipe and get rid of the dust in the tail gas, nevertheless because cyclone dust collection efficiency is low, it is poor to tail gas purifying effect, lead to the dust deposit in the tail gas pipeline easily, cause the tail gas pipeline to block up, often need artifical clearance, seriously influence the continuous operation of sludge drying system.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reasonable, high, prevent that the pipeline from blockking up, guarantee the sludge drying machine export tail gas processing system of system continuous operation of technology in order to solve the problem that the dust pelletizing system dust collection efficiency of sludge drying machine afterbody is low, pipe-line system blocks up easily, is difficult to guarantee sludge drying system continuous operation.
The sludge drier outlet tail gas treatment system comprises a spraying flushing device, a water-cooled condenser, a tail gas fan, a clarifier, a circulating flushing water tank, a circulating flushing water pump, a bottom sludge conveying pump and a wet sludge bin; the tail gas outlet of the spraying and flushing device is connected to the tail gas inlet of the water-cooled condenser, and the tail gas outlet of the water-cooled condenser is connected to a boiler blower through a tail gas fan; a water outlet at the bottom of the spraying and flushing device is connected to a water inlet of the clarifier; a condensed water outlet of the water-cooled condenser is connected to a water inlet of the clarifier; an overflow port at the top of the clarifier is connected to a water inlet of the circulating flushing water tank, and a sludge outlet at the bottom of the clarifier is connected to a wet sludge bin through a bottom sludge conveying pump; the water outlet of the circulating flushing water tank is respectively connected to the water inlet of the spraying flushing device and the sludge drying wastewater treatment system through a circulating flushing water pump.
Preferably, the method comprises the following steps: the spraying and washing device is horizontally arranged on a tail gas outlet pipeline of the sludge drying machine; one or a plurality of nozzles are arranged in the spraying and washing device, and a water outlet is arranged at the bottom of the spraying and washing device.
Preferably, the method comprises the following steps: an inclined plate is arranged in the clarifier and is of a hollow structure, and circulating cooling water is introduced into the inclined plate; a mud scraper is arranged in the clarifier.
Preferably, the method comprises the following steps: the circulation flush tank is provided with a water replenishment system.
Preferably, the method comprises the following steps: the water-cooled condenser is provided with a circulating cooling water inlet and a circulating cooling water outlet.
The utility model has the advantages that:
1. high dust removing efficiency and avoiding pipeline blockage
The system removes dust by spraying, washing and cleaning, has sufficient gas-liquid contact, high dust removal efficiency and reliable system operation, can efficiently remove dust in the sludge drying tail gas, effectively avoids the blockage of subsequent pipelines and ensures the continuous operation of the sludge drying system.
2. Simple process flow and low investment cost
The system is correspondingly transformed on the basis of the original sludge drying system, the process flow of the system is simple, the equipment is few, the structure of the main equipment is simple, the processing and the manufacturing are convenient, and the investment cost is low.
3. Convenient operation and maintenance
The system is provided with the high-efficiency flushing device, so that the sludge drying system can run more smoothly, the trouble of frequent manual cleaning is eliminated, and the difficulty of operation and maintenance is reduced.
Drawings
FIG. 1 is a schematic flow chart of a sludge drying machine outlet tail gas treatment system.
Description of reference numerals: the device comprises a spraying and washing device 1, a water-cooled condenser 2, a tail gas fan 3, a clarifier 4, a circulating and washing water tank 5, a circulating and washing water pump 6, a bottom mud delivery pump 7, a wet sludge bin 8, an inclined plate 9, a mud scraper 10 and a nozzle 11.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Example one
The embodiment of the application provides a sludge drying machine export tail gas processing system, including spray washing unit 1, water-cooled condenser 2, tail gas fan 3, clarifier 4, circulation flushing water tank 5, circulation flushing water pump 6, bed mud delivery pump 7, wet sludge bin 8. The spray flushing device 1 is arranged on a tail gas outlet pipeline of the sludge drying machine, a tail gas outlet of the spray flushing device 1 is connected to a tail gas inlet of the water-cooled condenser 2, and a tail gas outlet of the water-cooled condenser 2 is connected to a boiler blower through a tail gas fan 3; a water outlet at the bottom of the spraying and washing device 1 is connected to a water inlet of the clarifier 4; an overflow port at the top of the clarifier 4 is connected to a water inlet of the circulating flushing water tank 5, and a sludge outlet at the bottom of the clarifier 4 is connected to a wet sludge bin 8 through a bottom sludge conveying pump 7; the water outlet of the circulating flushing water tank 5 is respectively connected to the water inlet of the spraying flushing device 1 and the sludge drying wastewater treatment system through a circulating flushing water pump 6.
The spraying and washing device 1 is horizontally arranged on a tail gas outlet pipeline of the sludge drying machine; one or more nozzles 11 for washing are arranged in the spraying and washing device 1, and a water outlet is arranged at the bottom of the spraying and washing device 1.
An inclined plate 9 is arranged in the clarifier 4, the inclined plate 9 is of a hollow structure, circulating cooling water is introduced into the inclined plate 9, and the temperature of supernatant fluid overflowing from the clarifier 4 is controlled within 40 ℃ so as to ensure the activity of microorganisms in a wastewater treatment system; the inside of the clarifier 4 is provided with a mud scraper 10, which ensures that the sludge at the bottom of the clarifier can be smoothly discharged.
The circulating flushing water tank 5 is provided with a water supplementing system, and water supplemented by the circulating flushing water tank 5 comes from clear water treated by the sludge drying wastewater treatment system.
The temperature of the tail gas of the sludge drying machine is reduced to 2-5 ℃ in the water-cooled condenser 2, and a condensed water outlet of the water-cooled condenser 2 is connected to a water inlet of the clarifier 4 and finally conveyed to a sludge drying wastewater treatment system.
Example two
The second embodiment of the application provides a working method of a sludge drying machine outlet tail gas treatment system, which comprises the following steps:
s1, tail gas from the sludge drier enters a spray washing device 1, the tail gas after washing and dedusting enters a water-cooled condenser 2 for condensation and dehydration, and the condensed gas is pressurized by a tail gas fan 3 and then is conveyed to the inlet of a boiler blower and finally enters a boiler for incineration.
S2, conveying the condensed water generated in the water-cooled condenser 2 to a clarifier 4 for clarification treatment, and finally conveying the condensed water to a sludge drying wastewater treatment system.
S3, pressurizing the circulating flushing water in the circulating flushing water tank 5 by a circulating flushing water pump 6, then washing the tail gas at the outlet of the sludge drying machine by the spraying flushing device 1, and enabling the washing water generated in the spraying flushing device 1 to flow to the clarifier 4 through a water outlet at the bottom of the spraying flushing device.
S4, the discharge of the clarifier 4 is divided into two paths: one path is supernatant fluid overflowing from the clarifier 4 and flows to the circulating flushing water tank 5 automatically, and the other path is bottom mud of the clarifier 4 and is conveyed to a wet sludge bin 8 through a bottom mud conveying pump 7; and one part of water in the circulating flushing water tank 5 is used as circulating flushing water of the spraying flushing device 1, and the other part of water is discharged to a sludge drying wastewater treatment system for treatment.

Claims (5)

1. The utility model provides a sludge drying machine export tail gas processing system which characterized in that: comprises a spraying and washing device (1), a water-cooled condenser (2), a tail gas fan (3), a clarifier (4), a circulating and washing water tank (5), a circulating and washing water pump (6), a bottom mud delivery pump (7) and a wet sludge bin (8); the tail gas outlet of the spray flushing device (1) is connected to the tail gas inlet of the water-cooled condenser (2), and the tail gas outlet of the water-cooled condenser (2) is connected to a boiler blower through a tail gas fan (3); a water outlet at the bottom of the spraying and washing device (1) is connected to a water inlet of the clarifier (4); a condensed water outlet of the water-cooled condenser (2) is connected to a water inlet of the clarifier (4); an overflow port at the top of the clarifier (4) is connected to a water inlet of the circulating flushing water tank (5), and a sludge outlet at the bottom of the clarifier (4) is connected to a wet sludge bin (8) through a bottom sludge delivery pump (7); the water outlet of the circulating flushing water tank (5) is respectively connected to the water inlet of the spraying flushing device (1) and the sludge drying wastewater treatment system through a circulating flushing water pump (6).
2. The sludge drying machine outlet tail gas treatment system as claimed in claim 1, which is characterized in that: the spraying and washing device (1) is horizontally arranged on a tail gas outlet pipeline of the sludge drying machine; one or a plurality of nozzles (11) are arranged in the spraying and washing device (1), and a water outlet is arranged at the bottom of the spraying and washing device (1).
3. The sludge drying machine outlet tail gas treatment system as claimed in claim 1, which is characterized in that: an inclined plate (9) is arranged in the clarifier (4), the inclined plate (9) is of a hollow structure, and circulating cooling water is introduced into the inclined plate (9); a mud scraper (10) is arranged in the clarifier (4).
4. The sludge drying machine outlet tail gas treatment system as claimed in claim 1, which is characterized in that: the circulating flushing water tank (5) is provided with a water replenishing system.
5. The sludge drying machine outlet tail gas treatment system as claimed in claim 1, which is characterized in that: the water-cooled condenser (2) is provided with a circulating cooling water inlet and a circulating cooling water outlet.
CN202021410217.7U 2020-07-17 2020-07-17 Sludge drying machine export tail gas processing system Active CN212327767U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021410217.7U CN212327767U (en) 2020-07-17 2020-07-17 Sludge drying machine export tail gas processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021410217.7U CN212327767U (en) 2020-07-17 2020-07-17 Sludge drying machine export tail gas processing system

Publications (1)

Publication Number Publication Date
CN212327767U true CN212327767U (en) 2021-01-12

Family

ID=74081761

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021410217.7U Active CN212327767U (en) 2020-07-17 2020-07-17 Sludge drying machine export tail gas processing system

Country Status (1)

Country Link
CN (1) CN212327767U (en)

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