CN103359902A - Anaerobic digestion treatment system for dehydrated municipal sludge - Google Patents

Abstract

The invention relates to a municipal dewatered sludge anaerobic digestion treatment system, which belongs to the field of sludge resource treatment and disposal. The treatment system is composed of a sludge anaerobic digestion device, a sludge stirring device and an adjustment and monitoring device. The interlayer part between the water bath inner chamber and the water bath outer chamber constitutes the sludge anaerobic digestion chamber, and more than two water bath circulation pumps and water bath temperature sensors are installed in the water bath to ensure constant water temperature and rapid and uniform heating of the sludge, without shaft The mixing conveyor ensures the uniformity of the test sludge; the sealing ring of the pressing material can ensure the smooth progress of loading and unloading; the microbial detector, the leachate component detector and the gas component detector can detect relevant parameters in real time; the leachate storage and The relevant devices can adjust and refill the leachate in a timely manner, and decompose the organic matter in the leachate in a circular manner; the computer control system sets relevant parameters and records and processes data in real time, which greatly improves work efficiency.

Description

A Municipal Dewatered Sludge Anaerobic Digestion Treatment System

technical field

The invention relates to a municipal dewatered sludge anaerobic digestion treatment system, which belongs to the field of sludge resource treatment and disposal.

Background technique

With the rapid development of urbanization in China, the discharge of urban sludge has increased dramatically. At present, based on the water content of 80%, my country produces 30 million tons of sludge every year, of which landfill accounts for 60-65%, agricultural use after aerobic fermentation accounts for 10-15%, natural drying accounts for 3-6%, and incineration Accounted for 15%, open-air stacking or foreign transport accounted for 17%, the proportion of real safe disposal is 15-25%, and the anaerobic digestion and disposal capacity is weak. The United States produces 7.1 million tons of dry sludge every year, and anaerobic digestion is as high as 60%; Germany has anaerobic digestion systems in sewage treatment plants of more than 5,000 tons; most sewage treatment plants in Britain and France have anaerobic digestion systems for recycling Mass-energy and anaerobic digestion have become the main treatment and disposal methods in western developed countries and have been well developed.

my country has listed the sludge anaerobic digestion treatment and disposal technology as a strategic emerging industry that the country vigorously cultivates and develops. It aims to improve the level of anaerobic digestion of sludge in my country, make full use of anaerobic biogas production to recover biomass energy, improve the characteristics of sludge, and increase the utilization rate of anaerobic digestion of sludge for farmland, incineration and production of building materials.

The composition of municipal sludge is complex, and there are many factors affecting anaerobic digestion. The control of factors such as temperature, pH, and stirring uniformity, and the data monitoring of biomass, gas, and leachate are all key issues that need to be solved in anaerobic digestion. At present, there are patents related to sludge anaerobic fermentation equipment and technology, most of which are for undehydrated sludge, and the factor control is single, the monitoring indicators are incomplete, and the level of automation control is low. There is no anaerobic digestion treatment system for municipal dewatered sludge considering multi-factor control and multi-parameter monitoring. At the same time, due to foreign technical protection and the muddy nature of our sludge, it is difficult to directly use foreign sludge anaerobic digestion technology in China.

Therefore, based on the specific situation of sludge anaerobic digestion in my country, on the basis of existing technology, integrating existing instruments and equipment, and independently developing a municipal dewatered sludge anaerobic digestion system with multi-factor control and multi-parameter monitoring is an urgent problem to be solved.

Contents of the invention

In view of the above problems, the object of the present invention is to provide a municipal dewatered sludge anaerobic digestion system with multi-factor control and multi-parameter monitoring.

In order to achieve the above purpose, its technical solution is:

A municipal dewatered sludge anaerobic digestion treatment system, the treatment system is composed of a sludge anaerobic digestion device, a sludge stirring device and an adjustment and monitoring device, wherein the sludge anaerobic digestion device consists of a water bath inner cavity, a water bath outer Chamber, water bath circulating pump, water bath temperature sensor, water bath heating device, permeation plate, beam, telescopic rod, telescopic rod power device, pressing material sealing ring and feeding hopper, the outer chamber of the water bath is sandwiched, and the inner chamber of the water bath is set in the water bath In the outer cavity, located on the center line of the outer cavity of the water bath, the bottom of the inner cavity of the water bath communicates with the interlayer of the outer cavity of the water bath, and the interlayer of the outer cavity of the water bath is provided with more than two water bath circulation pumps and more than two water bath temperature sensors. The inner wall of the water bath cavity is provided with more than two water bath circulation pumps and more than two water bath temperature sensors. The water bath circulation pump is located above the water bath temperature sensor. The interlayer part between the cavities constitutes the sludge anaerobic digestion cavity. The permeable plate is fixed in the sludge anaerobic digestion cavity and is located at the lower end of the inner cavity of the water bath. A beam is set above the outer cavity of the water bath. The telescopic rod power device is fixedly installed on the beam Above, the telescopic rod is symmetrical. One end of the telescopic rod is fixedly connected to the power device of the telescopic rod, and the other end is fixedly connected to the sealing ring of the pressing material. The sealing ring of the pressing material is located in the sludge anaerobic digestion chamber. The feed hopper is connected to the feed port, the bottom of the feed hopper is provided with a feed valve, the side wall of the outer chamber of the water bath is provided with a discharge valve, the discharge valve is located above the permeation plate, and the bottom of the outer wall of the water bath chamber is installed There is a drain valve, and the sludge stirring device is composed of a shaftless stirring conveyor, a power unit, a second moisture detection sensor, a second pH detection sensor, a hopper, a hopper valve, a first moisture detection sensor, and a first pH detection sensor. The shaftless agitating conveyor is connected with an external power device. The front end of the shaftless agitating conveyor is equipped with a discharge port, which is located directly above the feeding hopper, and a second moisture detection sensor and a second pH detection sensor are installed at the discharge port. The sensor, the hopper is set at the rear end of the shaftless agitating conveyor, the hopper is located above the shaftless agitating conveyor, the bottom of the hopper is provided with a hopper valve, and the side wall of the hopper bottom is provided with a first moisture detection sensor and a first pH detection sensor , the adjustment and monitoring device consists of a first pH regulator, a first bacterial agent sprayer, a pneumatic power device, a water replenishment device, a water storage device, a microbial detection sensor, a microbial detector, a leachate storage, a leachate flow meter, a leachate Liquid component detector, leachate pump, gas collector, gas flow meter, gas component detector, second bacterial sprayer and second pH regulator, the first pH regulator and first bacterial sprayer are installed Above the shaftless agitating feeder, the connection between the first pH regulator and the shaftless agitating feeder is provided with a first pH adjustment liquid control valve, and the connection between the first bacterial sprayer and the shaftless agitating feeder A first bacterial agent spraying control valve is provided, the first pH regulator and the first bacterial agent sprayer are connected to the pneumatic power device through a pipeline, and the pipeline connecting the first pH regulator and the pneumatic power device is provided with the first pH regulator air pressure Control valve, connecting the first inoculum sprayer and pneumatic power unit The air pressure control valve of the first bacterial agent sprayer is set on the pipeline, the bacterial agent feed valve is set on the first bacterial agent sprayer, the pH adjustment liquid feed valve is set on the first pH regulator, and the water replenishing device is set in the water bath In the interlayer of the outer cavity, the water supply device is connected to the water storage pipe, the microbial detection sensor is arranged on the outer wall of the water bath outer cavity, the contact of the microbial detection sensor is located in the sludge anaerobic digestion cavity, and the microbial detection sensor communicates with the microbial detection sensor through the data line. The leachate storage is connected to the outer cavity of the water bath through a pipeline. The pipeline opening is located below the permeation plate. The pipeline is equipped with a leachate flow meter and a leachate component detector. The material sealing ring, the hose is provided with a leachate pump, the gas collector is connected to the pressing material sealing ring through a hose, the hose is provided with a gas flow meter and a gas component detector, a second bacterial sprayer and a second pH The regulator is set on the leachate storage, the connection between the second bacterial sprayer and the leachate storage is provided with a second bacterial agent spraying control valve, the connection between the second pH regulator and the leachate storage is provided with a second Two pH regulator air pressure control valves, the second bacterial agent sprayer and the second pH regulator are connected to the pneumatic power device through the pipeline, and the pipeline connecting the second bacterial agent sprayer and the pneumatic power device is provided with the air pressure of the second bacterial agent sprayer The control valve is provided with a second pH regulator air pressure control valve on the pipeline connecting the second pH regulator and the pneumatic power device, the second bacterial agent sprayer is provided with a bacterial agent feed valve, and the second pH regulator is provided with a The pH adjustment liquid feed valve, and the slag discharge valve is set at the bottom of the leachate storage.

The permeation plate is 5-10 cm away from the inner bottom of the outer chamber of the water bath.

The pressing material sealing ring is hollow, and the bottom of the pressing material sealing ring is provided with evenly distributed small holes.

The microorganism detector, feed valve, second moisture detection sensor, power unit, hopper valve, first moisture detection sensor, first pH detection sensor, first pH adjustment liquid control valve, first pH regulator air pressure control Valve, air pressure control valve of the first bacterial agent sprayer, first bacterial agent spraying control valve, second pH detection sensor, pneumatic power device, telescopic rod power device, gas flow meter, gas composition detector, water supply device, leachate Pump, second pH regulator air pressure control valve, second bacterial agent sprayer air pressure control valve, second bacterial agent spraying control valve, second pH regulator air pressure control valve, leachate composition detector, leachate flow meter , the water bath heating device and the water bath temperature sensor are connected with the computer control system through wires.

Due to the adoption of the above technical scheme, the walls of the water bath inner cavity and the water bath outer cavity of a municipal dewatered sludge anaerobic digestion treatment system of the present invention are equipped with water bath circulating pumps and water bath temperature sensors, which can keep heat exchange quickly and timely The temperature of each point in the water bath is fed back, and the computer control system starts the water bath heating device in time to ensure the constant temperature of the water bath; the water replenishment device installed in the outer cavity of the water bath can replenish the water volume in the water bath in real time to ensure the safe operation of the water bath; the inner cavity of the water bath and the outer cavity of the water bath form sludge Anaerobic digestion chamber, the water bath of this structure can heat both sides of the sludge, which can ensure rapid and uniform heating of the sludge; the shaftless stirring conveyor can ensure the uniformity of sludge feeding, and the front and rear ends are equipped with moisture detection sensors and The pH detection sensor can control the first pH regulator and the first bacterial agent sprayer in real time to ensure the pH value of the sludge feed; the pressure seal ring can ensure the smooth progress of loading and unloading materials; microbial detectors, leachate component detection The instrument and gas component detector ensure the real-time monitoring of microorganisms, leachate components and gas components in the process of sludge anaerobic digestion; the computer control system automatically analyzes the data, controls the second bacterial sprayer and the second pH regulator to buffer the pH Liquid and bacterial agents are added to the leachate storage and refilled into the sludge anaerobic digestion chamber to adjust the pH and microbial growth in time to ensure the smooth progress of the sludge anaerobic digestion. At the same time, the leachate can be further decomposed through refilling The organic matter in the leachate ensures the final effluent quality of the leachate; the entire treatment system is automatically controlled by a computer control system, and the data is automatically collected and analyzed. According to the analyzed data, the sludge anaerobic fermentation environment is adjusted in real time, saving manpower and material resources. The best control factors for sludge anaerobic digestion can be optimized in the shortest time.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings. see Attachment

A municipal dewatered sludge anaerobic digestion treatment system, the treatment system is composed of a sludge anaerobic digestion device, a sludge stirring device and an adjustment and monitoring device, wherein the sludge anaerobic digestion device consists of a water bath inner cavity 41 and a water bath outer cavity 45 , water bath circulating pump 1, water bath temperature sensor 48, water bath heating device 42, permeation plate 43, crossbeam 24, telescopic rod 22, telescopic rod power device 25, pressure material sealing ring 21 and feed hopper 5, the water bath outer cavity 45 is Sandwich shape, the water bath inner chamber 41 is arranged in the water bath outer chamber 45, is positioned at the centerline of the water bath outer chamber 45, the bottom of the water bath inner chamber 41 communicates with the interlayer of the water bath outer chamber 45, and the interlayer of the water bath outer chamber 45 is provided with two More than two water bath circulating pumps 1 and more than two water bath temperature sensors 48, the inner wall of the water bath cavity 41 is provided with more than two water bath circulating pumps 1 and more than two water bath temperature sensors 48, the water bath circulating pump 1 is located in the water bath Above the temperature sensor 48, the water bath circulation pump 1 can make the water in the water bath flow, so that the heat transfer is fast and even. The bottom of the water bath inner cavity 41 is provided with a water bath heating device 42. Part of the sludge anaerobic digestion cavity 47 is formed, so that the sludge in the anaerobic digestion cavity 47 can be heated quickly and evenly on both sides, so as to ensure the constant temperature of the sludge test. The permeable plate 43 is fixed in the sludge anaerobic digestion cavity 47, and is located at The lower end of the water bath inner cavity 41, the permeable plate 43 is 5-10cm away from the inner bottom of the water bath outer cavity 45, forming a certain space,

To facilitate the infiltration of leachate, a crossbeam 24 is arranged above the outer cavity 45 of the water bath, and the telescopic rod power device 25 is fixedly installed on the crossbeam 24. Fixedly connect the pressure material sealing ring 21, the pressure material sealing ring 21 is located in the sludge anaerobic digestion chamber 47, the pressure material sealing ring 21 can be in sealing contact with the cavity wall of the water bath inner cavity 41 and the water bath outer cavity 45, the pressure material sealing ring 21 It is hollow, and the bottom of the pressing material sealing ring 21 is provided with evenly distributed small holes. The small holes are designed for anti-blocking and will not block the passage during loading, testing and unloading. They are leachate recharge and gas passages. The upper side wall of the water bath outer chamber 45 is provided with a feed inlet, the feed hopper 5 is connected to the feed inlet, the bottom end of the feed hopper 5 is provided with a feed valve 4, and the side wall of the water bath outer chamber 45 is provided with a discharge valve 46 , the discharge valve 46 is located above the permeation plate 43, the bottom of the discharge valve 46 is on the same plane as the top surface of the permeation plate 43, which is convenient for smooth discharge after the end of the test, and the discharge valve 46 can be sealed and closed, and the water bath outer cavity 45 The bottom of the outer wall of the water bath is provided with a drain valve 44, and the drain valve 44 is located at the bottom of the outer wall of the water bath outer cavity 45 to ensure that the water in the water bath can be drained completely. The device 7, the second moisture detection sensor 6, the second pH detection sensor 20, the hopper 12, the hopper valve 9, the first moisture detection sensor 10 and the first pH detection sensor 11, and the shaftless stirring conveyor 8 is externally connected to the power device 7 , the front end of the shaftless stirring conveyor 8 is provided with a discharge port 19, the discharge port 19 is located directly above the feed hopper 5, and the discharge port 19 is provided with a second moisture detection sensor 6 and a second pH detection sensor 20, The hopper 12 is arranged at the rear end of the shaftless agitating conveyor 8, the hopper 12 is located above the shaftless agitating conveyor 8, the bottom of the hopper 12 is provided with a hopper valve 9, and the bottom side wall of the hopper 12 is provided with a first moisture detection sensor 10 With the first pH detection sensor 11, the adjustment monitoring device is composed of the first pH regulator 14, the first bacterial agent sprayer 16, the pneumatic power unit 23, the water replenishment device 30, the water reservoir 29, the microorganism detection sensor 2, the microorganism detector 3 , leachate storage 36, leachate flow meter 40, leachate component detector 39, leachate pump 31, gas collector 28, gas flow meter 26, gas component detector 27, second bacterial sprayer 34 and the second pH regulator 37, the first pH regulator 14 and the first bacterial sprayer 16 are installed above the shaftless stirring conveyor 8, the first pH regulator 14 and the shaftless stirring conveyor 8 The junction is provided with a first pH regulator liquid control valve 13, the junction of the first bacterial sprayer 16 and the shaftless stirring feeder 8 is provided with a first bacterial spray control valve 18, the first pH regulator 14 and the second A bacterial sprayer 16 is connected to the pneumatic power unit 23 through a pipeline, and the pipeline connecting the first pH regulator 14 and the pneumatic power unit 23 is provided with a first pH regulator air pressure control valve 15, which connects the first bacterial sprayer 16 and on the pipeline of the pneumatic power unit 23 The air pressure control valve 17 of the first bacterial agent sprayer is provided, the bacterial agent feed valve is arranged on the first bacterial agent sprayer 16, the pH adjustment liquid feed valve is arranged on the first pH regulator 14, and the water supply device 30 is arranged on In the interlayer of the water bath outer chamber 45,

The water replenishment device 30 is connected to the water storage device 29 by pipelines. The water replenishment device 30 is located at the upper part of the water bath outer chamber 45 interlayer, and its position can be adjusted according to the test water level. The microorganism detection sensor 2 is arranged on the outer wall of the water bath outer chamber 45. The head is located in the sludge anaerobic digestion chamber 47. The front end of the microbial detection sensor 2 is designed in an arc shape, and is on the same arc surface as the outer wall of the water bath outer chamber 45, which will not affect the work of the binder sealing ring 21. The microbial detection sensor 2 It is connected to the microbial detector 3 through a data line, and the leachate storage 36 is connected to the outer chamber 45 of the water bath through a pipeline. Instrument 39, the leachate storage 36 is connected to the binder sealing ring 21 through a hose, and the hose is placed at the bottom of the leachate storage 36, so that the leachate in the leachate storage 36 can be drained and placed in the leachate storage The end of the hose in 36 is provided with anti-clogging, the hose is provided with a leachate pump 31, the gas collector 28 is connected to the pressure material sealing ring 21 through the hose, and the hose is provided with a gas flow meter 26 and gas component detection instrument 27, the second bacterial agent sprayer 34 and the second pH regulator 37 are arranged on the leachate storage 36, and the connection of the second bacterial agent sprayer 34 and the leachate storage 36 is provided with a second bacterial agent spray control The valve 35, the connection between the second pH regulator 37 and the leachate storage 36 is provided with a second pH regulator air pressure control valve 38, and the second bacterial agent sprayer 34 and the second pH regulator 37 are connected to the pneumatic power device through a pipeline 23, the pipeline connecting the second bacterial sprayer 34 and the pneumatic power device 23 is provided with a second bacterial sprayer air pressure control valve 33, and the pipeline connecting the second pH regulator 37 and the pneumatic power device 23 is provided with a second The pH regulator air pressure control valve 32, the second bacterial agent sprayer 34 is provided with a bacterial agent feed valve, the second pH regulator 37 is provided with a pH adjustment liquid feed valve, and the bottom of the leachate storage 36 is provided with a slag discharge Valve, the bottom of the slag discharge valve is slightly lower than the bottom of the leachate storage 36, which is convenient for the removal of slag, the microbial detector 3, the feed valve 4, the second moisture detection sensor 6, the power unit 7, the hopper valve 9, the first moisture Detection sensor 10, the first pH detection sensor 11, the first pH adjustment liquid control valve 13, the first pH regulator air pressure control valve 15, the first bacterial agent sprayer air pressure control valve 17, the first bacterial agent spraying control valve 18, The second pH detection sensor 20, the pneumatic power device 23, the telescopic rod power device 25, the gas flow meter 26, the gas component detector 27, the water supply device 30, the leachate pump 31, the second pH regulator air pressure control valve 32, the second pH regulator Air pressure control valve 33 of the second bacterial agent sprayer, second air pressure control valve 35 of the bacterial agent sprayer, air pressure control valve 38 of the second pH regulator, leachate component detector 39, leachate flow meter 40, water bath heating device 42 and water bath The temperature sensor 48 is connected with the computer control system by wires.

The working principle of the processing system of the present invention:

Before using the municipal dewatered sludge anaerobic digestion system, turn on the power of the computer control system and turn on the computer

Control system, ensuring microbial detector 3, feed valve 4, power unit 7, hopper valve 9, first pH regulator fluid control valve 13, first pH regulator air pressure control valve 15, first bacterial sprayer air pressure control valve 17. The first bacterial agent spraying control valve 18, pneumatic power device 23, telescopic rod power device 25, gas flow meter 26, gas component detector 27, water supply device 30, leachate pump 31, second pH regulator air pressure control Valve 32, air pressure control valve 33 of the second bacterial agent sprayer, second air pressure control valve 35 of the bacterial agent sprayer, air pressure control valve 38 of the second pH regulator, leachate component detector 39, leachate flowmeter 40 and water bath heating The device 42 is in the closed state, and the relevant parameters are set on the computer control system. Check the permeation plate 43 through the discharge valve 46 to ensure that the permeation plate 43 is installed firmly, and ensure that the discharge valve 46 can be sealed and closed, and close the bottom of the water bath outer cavity 45 Inject distilled water into the water reservoir 29, open the slag discharge valve at the bottom of the leachate storage 36 to ensure that the leachate storage 36 is clean and free of slag, and then close the slag discharge valve at the bottom of the leachate storage 36 , open the bacterial agent feed valve on the first bacterial agent sprayer 16 and the second bacterial agent sprayer 34, load a sufficient amount of sludge anaerobic fermentation bacterial agent, then close the microbial agent feed valve, open the first pH The pH adjusting liquid feeding valve on the regulator 14 and the second pH adjusting device 37 is filled with a sufficient amount of pH adjusting agent, then the pH adjusting liquid feeding valve is closed, and the water supply device 30 is opened to the water bath outer chamber 45 through the computer control system. and water bath inner cavity 41 until the set water level, when the water level is lower than the set water level during the test, the water replenishing device 30 will automatically replenish water, and the hopper 12 is loaded with municipal sludge for testing, and the computer control system passes the first water The detection sensor 10 and the first pH detection sensor 11 read the pH and water content of the sludge. According to the pH required by the test, the content of the bacterial agent and the sludge transport volume of the shaftless mixer feeder 8, the computer control system will automatically set the first pH. Parameters of a pH regulating liquid control valve 13, the first pH regulator air pressure control valve 15, the first bacterial agent sprayer air pressure control valve 17 and the first bacterial agent spraying control valve 18 and the working time of the power unit 7, the power unit 7 One working time is the time required for the sludge to fill the 1/4 volume of the sludge anaerobic digestion chamber 47, and the computer control system calculates and designs according to the volume of the sludge anaerobic digestion chamber 47 and the transportation capacity set by the power unit 7 Set, connect the power supply of power unit 7 and pneumatic power unit 23, open feed valve 4, power unit 7, hopper valve 9, the first pH regulator liquid control valve 13, the first pH regulator air pressure control valve in computer control system 15, the first bacterial agent sprinkler air pressure control valve 17, the first bacterial agent spray control valve 18 and the pneumatic power unit 23, at this moment, the processing system device that the computer control system has opened starts to work, the second moisture content of the discharge port 19 The detection sensor 6 and the second pH detection sensor 20 start to monitor the pH and water content of the sludge after stirring, and feed back to the computer control system in real time , the computer control system compares the set value according to the feedback pH and water content, and the computer control system automatically adjusts to ensure that the error is less than 3‰. If the error is more than 3‰, the system that has been working will automatically stop working. At this time, the test should be stopped and checked. The relevant parts of the system, to ensure the safe operation of the system, when the power unit 7 reaches the preset working time, the power unit 7, the hopper valve 9, the first pH adjustment liquid control valve 13 and the first bacterial agent spraying control valve 18 will automatically close, at this time, the telescopic rod power device 25 will automatically open, and the telescopic rod power device 25 drives the pressing seal ring 21 through the telescopic rod 22 to evenly compact the sludge, and the working time of the telescopic rod power device 25 is preset by the computer control system. Set, after reaching the preset working time of the telescoping rod power unit 25, the power unit 7, the hopper valve 9, the first pH regulating fluid control valve 13 and the first bacterial agent spraying control valve 18 will automatically start working, when the power unit 7 reaches the After the preset working time, the power unit 7, the hopper valve 9, the first pH regulating fluid control valve 13 and the first bacterial agent spraying control valve 18 will be automatically closed. At this time, the telescopic rod power unit 25 will automatically open and work. After 4 cycles, the sludge fills the sludge anaerobic digestion chamber 47, the computer control system closes the feed valve 4 and the hopper valve 9, the power unit 7, the first pH regulator fluid control valve 13, and the first pH regulator The air pressure control valve 15, the first bacterial agent sprayer air pressure control valve 17, the first bacterial agent spray control valve 18 and the telescopic rod power unit 25 stop working, and the pressing material sealing ring 21 stops above the feed inlet. After that, the computer control system Turn on the water bath circulating pump 1, microorganism detector 3, gas flow meter 26, gas component detector 27, leachate component detector 39, leachate flow meter 40 and water bath heating device 42, and the sludge anaerobic digestion test starts The gas produced by anaerobic digestion is measured by a gas flow meter 26 and stored in a gas collector 28, and the leachate produced by anaerobic digestion is measured by a leachate flow meter 40 and stored in a leachate storage 36 , microbial detector 3, gas component detector 27 and leachate component detector 39 respectively monitor the microbial situation, gas components and leachate components in the anaerobic digestion process in real time, and feed back to the computer control system in time, and the computer control system according to the feedback According to the data analysis of leachate, the amount of pH regulator and bacterial agent added is calculated according to the amount of leachate, and then the second pH regulator air pressure control valve 32, the second bacterial agent sprayer air pressure control valve 33, and the second bacterial agent spraying are opened. Control the valve 35 and the second pH regulator air pressure control valve 38, add the calculated amount of pH adjustment solution and bacterial agent to the leachate in the leachate storage 36, and then turn on the leachate pump 31 to refill the leachate Enter the sludge anaerobic digestion chamber 47, adjust the pH and add bacterial agents in time, and also make the leachate anaerobic digestion again, further digest the organic matter in the leachate, and the leachate pump 31 is turned on. The time interval is controlled by the computer control system After setting, each working time is determined by the amount of leachate in the leachate storage 36, and its work The time is from the start of leachate extraction until the leachate in the leachate storage 36 is drained. After the leachate in the leachate storage 36 is drained, the leachate pump 31 will automatically stop working until it reaches the preset value. After the working time interval, the work is automatically started again. When no gas is produced, the test is over, all valves and sensors of the processing system are closed, the unloading valve 46 is opened and the telescopic rod power device 25 is started, and the sludge in the anaerobic digestion chamber 47 is unloaded. Follow-up testing is carried out on the sludge, and after the testing, it is properly disposed of, the system is cleaned and cared for, the power of the system is turned off, and then it is prepared for the next test. the

Claims (4)

1. municipal dewatered sludge anaerobic digestion treatment system, it is characterized in that: described treatment system is by sludge aerobic digestion device, sludge stirring device and adjusting monitoring device form, wherein, sludge aerobic digestion device is by water-bath inner chamber (41), water-bath exocoel (45), water-bath recycle pump (1), bath temperature sensor (48), water bath heating device (42), infiltration plate (43), crossbeam (24), expansion link (22), expansion link power set (25), binder wear ring (21) and hopper (5) form, water-bath exocoel (45) is sandwich-like, water-bath inner chamber (41) is arranged in the water-bath exocoel (45), be positioned on the medullary ray of water-bath exocoel (45), the interlayer of the bottom of water-bath inner chamber (41) and water-bath exocoel (45) is communicated with, be provided with plural water-bath recycle pump (1) and plural bath temperature sensor (48) in the interlayer of water-bath exocoel (45), be provided with plural water-bath recycle pump (1) and plural bath temperature sensor (48) on the inwall of water-bath inner chamber (41), water-bath recycle pump (1) is positioned at the top of bath temperature sensor (48), water-bath inner chamber (41) bottom is provided with water bath heating device (42), sandwich portion between water-bath inner chamber (41) and the water-bath exocoel (45) consists of anaerobic sludge digestion chamber (47), be fixedly installed infiltration plate (43) in the anaerobic sludge digestion chamber (47), and be positioned at the lower end of water-bath inner chamber (41), water-bath exocoel (45) top is provided with crossbeam (24), expansion link power set (25) is fixedly installed on the crossbeam (24), expansion link (22) is symmetry shape, expansion link (22) one ends are fixedly connected with expansion link power set (25), the other end is fixedly connected with binder wear ring (21), binder wear ring (21) is arranged in anaerobic sludge digestion chamber (47), water-bath exocoel (45) upper end sidewall is provided with opening for feed, hopper (5) connects opening for feed, hopper (5) bottom is provided with material inlet valve (4), be provided with discharge valve (46) on the sidewall of water-bath exocoel (45), discharge valve (46) is positioned at the top of infiltration plate (43), the outer wall bottom of water-bath exocoel (45) is provided with water escape valve (44), sludge stirring device is by shaftless stirring material conveyer (8), power set (7), the second water content detection sensor (6), the 2nd pH detecting sensor (20), hopper (12), hopper valve (9), the first water content detection sensor (10) and a pH detecting sensor (11) form, shaftless stirring material conveyer (8) external connection power device (7), the front end of shaftless stirring material conveyer (8) arranges discharge port (19), discharge port (19) be positioned at hopper (5) directly over, discharge port (19) locates to be provided with the second water content detection sensor (6) and the 2nd pH detecting sensor (20), hopper (12) is arranged on the rear end of shaftless stirring material conveyer (8), hopper (12) is positioned at the top of shaftless stirring material conveyer (8), hopper (12) bottom is provided with hopper valve (9), hopper (12) bottom sidewall is provided with the first water content detection sensor (10) and a pH detecting sensor (11), regulates monitoring device by the first pH-meter (14), the first microbial inoculum sprinker (16), Pneumatic propelling plant (23), water replanishing device (30), water receiver (29), microorganism detection sensor (2), microorganism detector (3), ooze drop liquid storer (36), ooze drop flow quantity meter (40), ooze drop liquid composition detection instrument (39), ooze drop liquid pump (31), gas trap (28), gas meter (26), gaseous constituent detector (27), the second microbial inoculum sprinker (34) and the second pH-meter (37) form, and the first pH-meter (14) and the first microbial inoculum sprinker (16) are installed in shaftless stirring material conveyer (8) top, the junction of the first pH-meter (14) and shaftless stirring material conveyer (8) is provided with the first pH regulator hydraulic control valve (13), the junction of the first microbial inoculum sprinker (16) and shaftless stirring material conveyer (8) is provided with the first microbial inoculum spray control valve (18), the first pH-meter (14) be connected microbial inoculum sprinker (16) and connect Pneumatic propelling plant (23) by pipeline, connect on the pipeline of the first pH-meter (14) and Pneumatic propelling plant (23) and be provided with the first pH-meter pneumatic control valve (15), connect on the pipeline of the first microbial inoculum sprinker (16) and Pneumatic propelling plant (23) and be provided with the first microbial inoculum sprinker pneumatic control valve (17), the first microbial inoculum sprinker (16) is provided with the microbial inoculum material inlet valve, is provided with pH regulator liquid material inlet valve on the first pH-meter (14), and water replanishing device (30) is arranged in the interlayer of water-bath exocoel (45), water replanishing device (30) is connected with water receiver (29) pipeline, microorganism detection sensor (2) is arranged on water-bath exocoel (45) outer wall, and the contact of microorganism detection sensor (2) is arranged in anaerobic sludge digestion chamber (47), and microorganism detection sensor (2) is connected with microorganism detector (3) by data line, oozing drop liquid storer (36) is connected in the water-bath exocoel (45) by pipeline, pipeline opening is positioned at the below of infiltration plate (43), is provided with on the pipeline and oozes drop flow quantity meter (40) and ooze drop liquid composition detection instrument (39), oozes drop liquid storer (36) by hose connection binder wear ring (21), be provided with on the flexible pipe and ooze drop liquid pump (31), gas trap (28) is provided with gas meter (26) and gas composition detection instrument (27) by hose connection binder wear ring (21) on the flexible pipe, the second microbial inoculum sprinker (34) and the second pH-meter (37) are arranged on and ooze on the drop liquid storer (36), the second microbial inoculum sprinker (34) and the junction of oozing drop liquid storer (36) are provided with the second microbial inoculum spray control valve (35), the second pH-meter (37) and the junction of oozing drop liquid storer (36) are provided with the second pH-meter pneumatic control valve (38), the second microbial inoculum sprinker (34) be connected pH-meter (37) and connect Pneumatic propelling plant (23) by pipeline, connect on the pipeline of the second microbial inoculum sprinker (34) and Pneumatic propelling plant (23) and be provided with the second microbial inoculum sprinker pneumatic control valve (33), connect on the pipeline of the second pH-meter (37) and Pneumatic propelling plant (23) and be provided with the second pH-meter pneumatic control valve (32), the second microbial inoculum sprinker (34) is provided with the microbial inoculum material inlet valve, is provided with pH regulator liquid material inlet valve on the second pH-meter (37), oozes drop liquid storer (36) bottom and is provided with slag-discharging valve.

2. a kind of municipal dewatered sludge anaerobic digestion treatment system as claimed in claim 1, it is characterized in that: described infiltration plate (43) is apart from water-bath exocoel (45) inner bottom part 5-10cm.

3. a kind of municipal dewatered sludge anaerobic digestion treatment system as claimed in claim 1, it is characterized in that: described binder wear ring (21) is hollow shape, and the bottom of binder wear ring (21) offers even distribution aperture.

4. a kind of municipal dewatered sludge anaerobic digestion treatment system as claimed in claim 1 is characterized in that: described microorganism detector (3), material inlet valve (4), the second water content detection sensor (6), power set (7), hopper valve (9), the first water content detection sensor (10), the one pH detecting sensor (11), the first pH regulator hydraulic control valve (13), the first pH-meter pneumatic control valve (15), the first microbial inoculum sprinker pneumatic control valve (17), the first microbial inoculum spray control valve (18), the 2nd pH detecting sensor (20), Pneumatic propelling plant (23), expansion link power set (25), gas meter (26), gaseous constituent detector (27), water replanishing device (30), ooze drop liquid pump (31), the second pH-meter pneumatic control valve (32), the second microbial inoculum sprinker pneumatic control valve (33), the second microbial inoculum spray control valve (35), the second pH-meter pneumatic control valve (38), ooze drop liquid composition detection instrument (39), ooze drop flow quantity meter (40), water bath heating device (42) is connected 48 with the bath temperature sensor) be connected with computer control system by wire.

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