CN207608474U - Reactor for treating excess sludge by cavitation jet - Google Patents

Abstract

The utility model provides a cavitation jet reactor for treating excess sludge. A sludge inlet pipe is arranged on the outer wall of the sludge reactor, a control box is arranged on the outer wall of the sludge reactor, and a signal transmitter is arranged under the control box. A baffle is set above the sludge reactor, an agitator is set in the middle of the baffle, and a detection head is set on the lower surface of the baffle, and a water inlet hole is set on the inner wall of the sludge reactor close to the top of the baffle, and the water inlet hole is connected with a cavitation Jet flow device, the bottom of the sludge reactor is provided with a sludge outlet pipe, a cavitation bubble jet launcher is arranged above the sludge outlet pipe, an injection port is provided on the side wall of the cavitation bubble jet launcher, and a solenoid valve is provided below the sludge outlet pipe , a conveyor is arranged under the electromagnetic valve, and a supporting leg is arranged under the sludge reactor. The reactor can be widely used in the technical field of sludge treatment, and has good application prospects and industrial production potential.

Description

A reactor for treating excess sludge with cavitation jet

technical field

The utility model relates to a reactor for treating excess sludge, more particularly to a reactor for treating excess sludge with a cavitation jet, and belongs to the technical field of environmental protection equipment.

Background technique

With the rapid growth of the global population and the process of industrialization, more and more sewage is produced in the process of people's life and industrial production, which poses a huge threat to the environment.

For the treatment of sewage, a large part of it is treated by biological oxidation. After the sewage is treated by this method, a large amount of residual sludge is produced. The sludge contains a large amount of heavy metals, organic matter, microorganisms and other substances. It cannot be directly buried or backfilled, and further treatment is often required to eliminate potential environmental pollution threats.

At present, people have conducted a lot of in-depth research on the treatment of excess sludge, and have achieved certain results, such as:

CN101413014A discloses a device for fermenting hydrogen production from residual sludge in a sewage plant by microwave pretreatment. The device includes a microwave generator, a fermentation hydrogen production reactor and a hydrogen collection device. The top of the fermentation hydrogen production reactor is provided with a hydrogen outlet, and the bottom is provided with a Sludge inlet and sludge outlet, the microwave generator is connected to the sludge inlet of the fermentation hydrogen production reactor, the hydrogen collection device is connected to the hydrogen outlet of the fermentation hydrogen production reactor, and the fermentation hydrogen production reactor is equipped with a stirrer and heater. The device has a large amount of hydrogen production and a short delay time, can improve the bioredegradability of the sludge, and can release heavy metals in the sludge, reducing soil pollution from landfill treatment, and the equipment is simple, low in cost, and energy-consuming few.

CN102492726A discloses a device for producing hydrogen and methane by fermenting excess sludge. The device specifically includes a sludge conveying pipe, a first conveying pump, a second conveying pump, a first valve, a second valve, a third valve, a fourth valve, a sludge preprocessor, a sludge inlet, an internal circulation anaerobic Reactor, primary three-phase separator, secondary three-phase separator, outlet channel, gas-liquid separator, sludge outlet and temperature control system. The device has many advantages such as good fluidity, not easy to block pipelines, no pretreatment such as sorting and mixing, and simple operation.

CN102701553A discloses a solid-liquid separation device for excess sludge organic carbon source, which includes anaerobic hydrolysis reactor, screw pump, chemical cleaning tank, chemical cleaning pump, ceramic membrane microfiltration device I, ceramic membrane microfiltration device II and carbon source storage tank; the bottom of the anaerobic hydrolysis reactor communicates with the screw pump; the outlet of the screw pump communicates with the ceramic membrane microfiltration device I and ceramic membrane microfiltration device II respectively; the chemical The cleaning tank is communicated with the chemical cleaning pump; the outlet of the chemical cleaning pump is respectively communicated with the ceramic membrane microfiltration device I and the ceramic membrane microfiltration device II; the ceramic membrane microfiltration device I and the ceramic membrane microfiltration device Filtration devices II are all in communication with the carbon source storage tank through hydrolysis filtrate pipelines. The device can effectively elute the dissolved organic carbon source, thereby promoting the hydrolysis and acidification of the sludge, and can control the bidirectional flow to reduce membrane channel blockage.

CN103043877A discloses a waste water biochemical excess sludge treatment device, the treatment device includes an anaerobic tank, an aerobic tank and a mud-water separation device (13) arranged sequentially on the waste water biochemical treatment sewage pipeline, the anaerobic tank and mud water A return pipe is arranged between the separation devices, and the return pipe is provided with an air dissolving device and an inlet pipe for feeding oxygen and ozone gas into the air dissolving device.

CN103626372A discloses an anaerobic + low dissolved oxygen residual sludge hydrolysis fermentation acid production device, the device includes: nitrogen machine, excess sludge hydrolysis fermentation reactor, air compressor, excess sludge acid production reactor, carbon The source storage tank, wherein the excess sludge hydrolysis fermentation reactor is a sealed tank body, with a mud inlet pipe, agitator and fermentation liquid output pipe; the excess sludge acid production reactor is a sealed pool body, with a fermentation liquid input pipe, Stirrer and carbon source output pipe; the carbon source storage pool is an open pool body, with water outlet pipes and mud discharge pipes.

CN 103896401A discloses a water treatment device for excess sludge reduction and enhanced biological denitrification and phosphorus removal, specifically: a biological reaction tank connected to a water inlet, the biological reaction tank is A ² /O-MBR process, self-inlet One end of the inlet is the anaerobic tank, the anoxic tank and the aerobic-membrane bioreaction tank in sequence. There is a membrane module in the biological reaction tank, the bottom of the membrane module is connected to an aerator, and the top of the membrane module is connected to a membrane effluent suction pump; microwave-alkali-hydrogen peroxide is used for residual sludge treatment, A ² /O-MBR The sludge enters the sludge adjustment tank, and the sludge enters the microwave reactor after adjustment; the sludge enters the phosphorus removal sedimentation tank after microwave treatment; the phosphorus removal sedimentation tank is equipped with an agitator, and the sludge is treated with the supernatant after phosphorus removal and precipitation The liquid is connected to the anoxic tank of the biological reaction tank through pipelines, and returns as an internal carbon source.

CN104386892A discloses a device for removing heavy metals in excess sludge by electrodynamic technology, which belongs to the device for removing heavy metals in sludge. The device connects a plurality of guide plates between two electrode plates to form a zigzag channel, the two ends of the zigzag channel are respectively connected to a mud inlet pipe and a mud outlet pipe, and a DC power supply is connected to the two electrode plates; During the sludge treatment process of the device, the sludge to be treated is passed through the sludge inlet pipe into the tortuous channel between the electrode plates connected with the DC power supply, and the sludge flows out of the electrodes under the guidance of the guide plate between the electrode plates. During this process, heavy metals move to the cathode plate under the action of electric field force and are precipitated on the plate. Advantages: It overcomes the disadvantages of high acid consumption, high cost, and reduced sludge fertilizer efficiency of the chemical treatment method and the strict requirements of the biological method on conditions and unstable treatment effects. It has high treatment efficiency and does not destroy the fertilizer efficiency of the sludge. The removed heavy metals are enriched on the electrode plate for recycling.

CN104609637A discloses a wastewater biochemical excess sludge treatment device, the treatment device includes an anaerobic tank (11), an aerobic tank (12) and a mud-water separation device (13) arranged sequentially on the wastewater biochemical treatment sewage pipeline (10) ), said anaerobic tank (11) and the mud-water separation device (13) are provided with a return pipeline, which is provided with a gas-dissolving device (30) and feeds oxygen and ozone gas into the gas-dissolving device (30) intake pipe (31a).

CN105647791A discloses a device for preparing biogas using three-stage excess sludge and rice straw, including a feeding unit, a biogas fermentation tank, a conveying unit and a controller. The feeding unit includes two parallel storage bins, and the biogas fermentation tank includes The civil foundation is fixed with a supporting column, and a sealing cover is installed on the supporting column, and the conveying unit includes a transverse conveying mechanism and a longitudinal conveying mechanism. The device for preparing biogas by using the remaining sludge and straw in the third stage can not only solve the environmental pollution problem caused by most of the sludge produced in the sewage treatment plant without proper treatment and random stacking, but also avoid the underutilization of a large amount of straw It can only be incinerated to cause environmental pollution, and the two are used at the same time to generate biogas to realize the reuse of waste.

CN206156995U discloses a kind of aerobic drying device for urban domestic sewage remaining sludge, which includes sludge drying cylinder, blade agitator, reaction tank, electric heating insulation cover, water collection tank, aeration pipe tank, water-permeable and air-permeable orifice plate , drain pipe, aeration pipe, cover plate, feed inlet, air lock, temperature sensor, humidity sensor, oxygen concentration sensor, exhaust pipe, condenser, condensate pipe, activated carbon adsorption column, air pipe, discharge port, Motor, blower, sludge bucket, storage tank. Compared with the prior art, the device uses the heat of microbial aerobic fermentation to dry the remaining sludge of urban domestic sewage, which can greatly save the energy required for sludge drying; in addition, it has the advantages of simple structure, reliable operation, and easy management And the advantages of maintenance, no smell.

CN206156991U discloses a kind of device that utilizes the remaining sludge of urban sewage treatment plant to produce methane, and it comprises sludge pump, pyrolysis reactor, flash tank, booster pump, anaerobic digestion reactor, temperature sensor, pressure sensor, humidity Sensors, oxygen concentration sensors, methane concentration sensors, biogas collectors, and air purifiers, which convert macromolecules and refractory organic matter in the residual sludge of urban sewage treatment plants through pyrolysis, flash evaporation and anaerobic fermentation Methane is a combustible hydrogen-rich fuel, which not only realizes the recycling of solid waste, but also converts organic pollutants that may pose a potential threat to the environment in the residual sludge of urban sewage treatment plants into energy. The device has a simple structure and stable and reliable operation. The system has good sealing performance and high safety.

CN202671368U discloses a pyrolysis device for reducing excess sludge, comprising: a pressure pump, a heat exchanger and a reaction kettle; the excess sludge enters the device through the inlet of the pressure pump; the outlet of the pressure pump is connected to the inlet of the heat-absorbing chamber of the heat exchanger The outlet of the heat-absorbing chamber of the heat exchanger is connected to the inlet of the reactor; the outlet of the reactor is connected to the inlet of the heat-releasing chamber of the heat exchanger; the outlet of the heat-releasing chamber of the heat exchanger discharges the reduced sludge after pyrolysis. The structure is simple, the operation is convenient, and the remaining sludge can be treated by pyrolysis, so that the quality of the solid matter of the sludge can be reduced, and the pathogens of the sludge can be killed, which meets the subsequent treatment requirements.

CN202785935U discloses a kind of residual sludge treatment device, comprises dryer, cyclone dust collector, high-pressure blower; Described dryer is provided with boiler flue gas inlet, boiler flue gas outlet, sludge inlet, sludge outlet, cyclone dust removal The device is provided with a feed pipe, a discharge port and an air discharge pipe, the sludge outlet is connected to the feed pipe, the discharge port is connected to the boiler feed port, and the high-pressure fan is arranged on the discharge pipe. Using the device to treat sludge has the advantages of simple structure, energy saving and emission reduction, and low operating cost.

CN202898181U discloses a device for fast and safe treatment of excess sludge in sewage treatment, comprising a closed-circuit treatment channel welded into one by a mud inlet (1), a device housing (2) and a water outlet (11), and a mud inlet (1) Welded together with the device housing (2), a buffer tank (3) is formed between the device housing (2) and the feed baffle (4), the feed baffle (4) and the inner partition (7) Welded into one body, a foam overflow tank (5) is formed between the inner partition (7) and the device housing (2), and a foam discharge port (6) is set in the foam overflow tank (5), and the feed stop An electrode cathode (15) and an electrode anode (16) are installed between the plate (4) and the overflow baffle (9) to form the oxidation reaction zone (8), the overflow baffle (9) and the inner partition (7) Welded into one, a sump (10) is formed between the overflow baffle (9) and the device housing (2), and the water outlet (11) and the device housing (2) are welded into one, using the device can make The sludge reduction exceeds 97%, and can be widely used in the sludge treatment and disposal of urban domestic sewage treatment plants, urban comprehensive sewage treatment plants, and urban chemical sewage treatment plants.

CN203128361U discloses a waste water biochemical excess sludge treatment device, which can greatly reduce the treatment cost of excess sludge, and can realize zero discharge of waste water biological treatment excess sludge. The treatment device includes an anaerobic tank, an aerobic tank and a mud-water separation device arranged sequentially on the sewage pipeline for biochemical treatment of wastewater. A return pipe is arranged between the anaerobic tank and the mud-water separation device. gas device and the inlet pipe for feeding oxygen and ozone gas into the gas-dissolving device.

CN204022633U discloses a residual sludge reduction treatment device, which is an intermittent circulation upstream high-concentration sludge bed treatment system, including a reaction tank, an aeration tank, an aerator, a return pipe and a feed pump. The upper end of the reaction tank is connected to the lower part of the aeration tank with a return pipe, the top is provided with an exhaust port, the upper end is provided with a water outlet weir and a water outlet pipe, the lower end is provided with a mud discharge pipe, and a three-phase separator is also provided inside; The outlet of the pipe is set in the center of the mud-water mixed sedimentation area on the upper part of the three-phase separator in the reaction tank. The inlet of the feed pump is respectively connected with the outlet of the aeration tank and the mud inlet pipe. The outlet of the feed pump is connected with the mud inlet pipe under the reaction tank. end connection. The device has the characteristics of simple structure, less investment, low energy consumption, good sludge reduction effect and the like.

CN205024060U discloses an aeration-enhanced device for high-temperature hydrolysis and acidification of excess sludge in a sewage treatment plant. The device includes a sludge storage tank, a sludge feed pump, an aeration pump, an agitator, a check valve, a hydrolysis acidification reactor, a heating water bath, and a sludge discharge pump. The sludge feed pump is placed in the sludge storage tank. The aeration pump and agitator are placed in the hydrolysis and acidification reactor, and the hydrolysis and acidification reactor is placed in the heating water bath. The hydrolysis and acidification reactor is connected with the mud pump. stop valve. The device not only realizes sludge reduction, recycling, and stabilization, and reduces the pollution of the sludge to the urban environment, but also generates volatile fatty acids that can be widely used in multiple fields such as the environment and chemical industry.

Thus it can be seen that a variety of devices for treating excess sludge are disclosed in the prior art, but there is still a need for continuous research and development of new devices for treating excess sludge, and it also has very urgent practical significance. The research hotspot and key point in the field are the power place and the basis for the completion of the utility model.

Utility model content

In order to provide a new device for treating excess sludge, the inventor has conducted a lot of in-depth research, and after paying creative work, the utility model has been completed.

Specifically, the utility model provides a reactor for cavitation jet treatment of excess sludge, the reactor includes agitator, baffle, mud inlet pipe, signal transmitter, support legs, mud outlet Bubble jet launcher, cavitation jet device, sludge reactor, water inlet hole, detection head, injection port, control box, conveyor and solenoid valve;

Wherein, the sludge inlet pipe is arranged on the outer wall of the sludge reactor, the control box is arranged on the outer wall of the sludge reactor, the signal transmitter is arranged below the control box, and the sludge The baffle is arranged above the reactor, the agitator is arranged in the middle of the baffle, the detection head is arranged on the lower surface of the baffle, and the inner wall of the sludge reactor is arranged close to the top of the baffle There is the water inlet hole, the cavitation jet device is connected to the water inlet hole, the sludge outlet pipe is arranged at the inner bottom of the sludge reactor, and the cavitation bubble is arranged above the mud outlet pipe A jet launcher, the side wall of the cavitation bubble jet launcher is provided with the injection port, the solenoid valve is provided below the mud outlet pipe, the conveyor is provided below the solenoid valve, and the sludge The supporting legs are arranged below the mud reactor.

In the reactor of the present invention, as a preferred technical solution, the baffle is fixed above the inside of the sludge reactor by screws, and the baffle is a porous stone plate or a porous metal plate.

Such an arrangement can effectively separate water and excess sludge, thereby facilitating separate treatment of excess sludge.

Wherein, the porous stone plate or the porous metal plate are very conventional elements, and those skilled in the art can purchase a suitable porous stone plate or porous metal plate according to actual needs, and will not be described in detail here.

In the reactor of the present utility model, as a preferred technical solution, the agitator is fixed on the baffle by screws, the lower end of the agitator goes deep into the remaining sludge, and the agitator and the agitator electrical connection to the control box.

Through such structural design and arrangement, the agitator can fully agitate the excess sludge, so that the excess sludge is fully in contact with the air bubbles, thereby improving the purification speed and treatment efficiency.

In the reactor of the utility model, as a preferred technical solution, the mud inlet pipe is welded on the outer wall of the sludge reactor, and the position of the mud inlet pipe is lower than that of the baffle plate. Location.

Such an arrangement can prevent excess sludge from contacting with clean water and facilitate the treatment of excess sludge.

In the reactor of the present utility model, as a preferred technical solution, the mud outlet pipe is welded at the bottom of the sludge reactor, and the mud outlet pipe is a tapered structure with a large top and a small bottom. The solenoid valve is installed under the mud outlet pipe through a pipe collar.

Such a structural design and arrangement is very beneficial to the discharge of excess sludge, and at the same time prevents sludge leakage from affecting the treatment effect when excess sludge is being treated.

In the reactor of the present utility model, as a preferred technical solution, the cavitation bubble jet launcher is nested on the top outer wall of the mud outlet pipe, and the cavitation bubble jet launcher is connected to the The gas outlet ends of the cavitation jet devices are connected.

With such an arrangement, air bubbles can be ejected from the bottom of the sludge reactor, thereby breaking up organic matter and microorganisms in the remaining sludge, and improving sludge treatment speed and treatment efficiency.

In the reactor of the present utility model, as a preferred technical solution, the cavitation bubble jet launcher is an annular structure, which has four injection ports, and the four injection ports are arranged at equal intervals on the On the outer wall of the cavitation bubble jet launcher, the four injection ports have the same orientation.

Such a structural design and setting can ensure that the cavitation bubble jet launcher can automatically rotate by using the reaction force during the process of ejecting the cavitation bubbles, so that the cavitation bubbles can be more fully contacted with the remaining sludge.

In the reactor of the present utility model, as a preferred technical solution, the inner wall of the mud outlet pipe is provided with a helical blade, and the helical blade is spirally extended from the large end of the mud outlet pipe to the small end. .

Such a structural design can make the sludge rotate under the action of its own weight in the process of flowing downward along the spiral blade, and can be discharged more thoroughly, preventing the sludge from sticking to the sludge outlet pipe on the inner wall.

In the reactor of the present utility model, the detection head can monitor the pH value of the sludge, redox potential, dissolved oxygen and COD and many other real-time information on-line, and through the signal transmitter, the monitored The information is sent to the remote control center, thereby realizing remote control.

The working process and/or principle of the reactor of the utility model are as follows: excess sludge enters the sludge reactor from the mud pipe, the agitator rotates to drive the excess sludge to rotate, and the empty The cavitation jet device produces a large number of cavitation bubbles, which are ejected from the injection port on the cavitation bubble jet launcher. The high-speed ejected cavitation bubbles burst when encountering sludge and generate huge shock waves. The organic matters, microorganisms, heavy metals, etc. in the mud are crushed into soluble tiny particles, while the unbroken impurities are transported away from the mud outlet pipe into the conveyor. During this period, various real-time information of the sludge is monitored through the detection head, and the information is sent to the remote control center through the signal transmitter for remote control, thereby realizing remote automatic operation.

In summary, the utility model provides a new type of cavitation jet reactor for treating excess sludge. The reactor can produce a large number of cavitation bubbles through a unique structural design, and the cavitation bubbles can be broken instantly When it will bring a strong impact, the impact and cavitation phenomenon can break the sludge flocs, and the generated cavitation bubbles can degrade organic matter, heavy metals and microorganisms, and the cavitation bubbles can destroy the microbial cell structure, and the intracellular Dissolution of organic matter reduces the amount of residual sludge. Therefore, it can be widely used in the technical field of sludge treatment, and has good application prospects and industrial production potential.

Description of drawings

Fig. 1 is a schematic diagram of the internal structure of the reactor of the present invention.

Fig. 2 is a schematic diagram of the external structure of the reactor of the present invention.

Fig. 3 is a schematic structural diagram of the cavitation bubble jet launcher of the reactor of the present invention.

Fig. 4 is a schematic structural diagram of the mud outlet pipe of the reactor of the present invention

Wherein, in FIGS. 1-4 , each numeral signifies the following specific meanings, elements or components respectively.

1. Agitator; 2. Baffle; 3. Mud inlet pipe; 4. Signal transmitter; 5. Support leg; 6. Mud outlet pipe; 7. Cavitation bubble jet launcher; 8. Cavitation jet device; 9 1. Sludge reactor; 10. Water inlet; 11. Detection head; 12. Injection port; 13. Control box; 14. Conveyor; 15. Solenoid valve; 16. Spiral blade.

Detailed ways

The utility model will be described in detail through specific embodiments below in conjunction with the accompanying drawings, but the use and purpose of these exemplary embodiments are only used to cite the utility model, and do not constitute any form of any limitation to the actual protection scope of the utility model. Not to limit the scope of protection of the present utility model thereto.

As shown together in Figures 1-3, the utility model provides a reactor for cavitation jet treatment of excess sludge, the reactor includes an agitator 1, a baffle 2, a mud inlet pipe 3, a signal transmitter 4, Support legs 5, mud outlet pipe 6, cavitation bubble jet launcher 7, cavitation jet device 8, sludge reactor 9, water inlet 10, detection head 11, injection port 12, control box 13, conveyor 14 and Solenoid valve 15;

Wherein, the sludge inlet pipe 3 is arranged on the outer wall of the sludge reactor 9, the control box 13 is arranged on the outer wall of the sludge reactor 9, and the signal transmitter is arranged below the control box 13. 4. The baffle 2 is arranged above the sludge reactor 9, the agitator 1 is arranged in the middle of the baffle 2, the detection head 11 is arranged on the lower surface of the baffle 2, and the The inner wall of the sludge reactor 9 is provided with the water inlet hole 10 close to the top of the baffle plate 2, the water inlet hole 10 is connected with the cavitation jet device 8, and the inner bottom of the sludge reactor 9 is provided with a The mud outlet pipe 6 is provided with the cavitation bubble jet launcher 7 above the mud outlet pipe 6, and the injection port 12 is provided on the side wall of the cavitation bubble jet launcher 7, and the mud outlet pipe The electromagnetic valve 15 is arranged below the electromagnetic valve 15, the conveyor 14 is arranged under the electromagnetic valve 15, and the support leg 5 is arranged under the sludge reactor 9.

As a preferred technical solution, the baffle 2 is fixed above the inside of the sludge reactor 9 by screws, and the baffle 2 is a porous stone plate or a porous metal plate.

Such an arrangement can effectively separate water and excess sludge, thereby facilitating separate treatment of excess sludge.

Wherein, the porous stone plate or the porous metal plate are very conventional elements, and those skilled in the art can purchase a suitable porous stone plate or porous metal plate according to actual needs, and will not be described in detail here.

As a preferred technical solution, the agitator 1 is fixed on the baffle plate 2 by screws, the lower end of the agitator 1 penetrates into the excess sludge, and the agitator 1 is electrically connected to the control box 13 .

Through such structural design and arrangement, the agitator 1 can fully agitate the excess sludge, so that the excess sludge is fully in contact with the air bubbles, thereby improving the purification speed and treatment efficiency.

As a preferred technical solution, the mud inlet pipe 3 is welded on the outer wall 9 of the sludge reactor, and the position of the mud inlet pipe 3 is lower than that of the baffle plate 2 .

Such an arrangement can prevent excess sludge from contacting with clean water and facilitate the treatment of excess sludge.

As a preferred technical solution, the mud outlet pipe 6 is welded at the bottom of the sludge reactor 9, the mud outlet pipe 6 is a tapered structure with a large top and a small bottom, and the solenoid valve 15 is installed through a pipe collar Below the mud outlet pipe 6.

Such a structural design and arrangement is very beneficial to the discharge of excess sludge, and at the same time prevents sludge leakage from affecting the treatment effect when excess sludge is being treated.

As a preferred technical solution, the cavitation bubble jet launcher 7 is nested on the top outer wall of the mud outlet pipe 6, and the cavitation bubble jet launcher 7 is connected to the air outlet end of the cavitation jet device 8. connected.

With such an arrangement, air bubbles can be ejected from the bottom of the sludge reactor 9, thereby breaking up organic matter and microorganisms in the remaining sludge, and improving sludge treatment speed and treatment efficiency.

As a preferred technical solution, the cavitation bubble jet launcher 7 is an annular structure, which has four injection ports 12, and the four injection ports 12 are arranged at equal intervals on the outer wall of the cavitation bubble jet launcher 7 Above, the directions of the four injection ports 12 are the same.

Such a structural design and setting can ensure that the cavitation bubble jet launcher 7 can automatically rotate by using the reaction force during the process of ejecting the cavitation bubbles, so that the cavitation bubbles can be more fully contacted with the remaining sludge.

As shown in FIG. 4 , as a preferred technical solution, a helical blade 16 is provided on the inner wall of the mud outlet pipe 6 , and the helical blade 16 spirally extends from the large end to the small end of the mud outlet pipe 6 .

Such a structural design can make the sludge rotate under the action of its own weight in the process of flowing downward along the spiral blade 16, and can be discharged more thoroughly, preventing the sludge from sticking to the outlet of the sludge. on the inner wall of the tube 6.

The working process and/or principle of the reactor of the present utility model are as follows: the excess sludge enters the sludge reactor 9 from the mud pipe 3, and the agitator 1 rotates to drive the excess sludge to rotate, The cavitation jet device 8 produces a large number of cavitation bubbles, which are ejected from the injection port 12 on the cavitation bubble jet launcher 7, and the cavitation bubbles ejected at a high speed rupture and produce huge bubbles when they encounter sludge. The shock wave, the shock wave crushes the organic matter, microorganisms, heavy metals, etc. in the sludge into soluble tiny particles, while the unbroken impurities are transported away from the mud outlet pipe 6 into the conveyor 14; during this period, all The detection head 11 can monitor the pH value, oxidation-reduction potential, dissolved oxygen, COD and many other real-time information of the sludge online, and send the monitored information to the remote control center through the signal transmitter 4 to implement remote control , so that remote automation can be realized.

In summary, the utility model provides a new type of cavitation jet reactor for treating excess sludge. The reactor can produce a large number of cavitation bubbles through a unique structural design, and the cavitation bubbles can be broken instantly When it will bring a strong impact, the impact and cavitation phenomenon can break the sludge flocs, and the generated cavitation bubbles can degrade organic matter, heavy metals and microorganisms, and the cavitation bubbles can destroy the microbial cell structure, and the intracellular Dissolution of organic matter reduces the amount of residual sludge. Therefore, it can be widely used in the technical field of sludge treatment, and has good application prospects and industrial production potential.

Although the above-mentioned embodiments of the present invention, the structure shown in the accompanying drawings, the micro-nano bubble generation process and basic principles have been introduced for the purpose of illustration and description, these are not exhaustive descriptions, nor can the present invention be described in detail. The scope is limited to this. For those skilled in the art, various modifications and/or changes can be made to the above-mentioned embodiments of the present utility model, and all these modifications and/or changes are included within the scope defined by the claims of the present utility model , without departing from the scope and spirit of the present invention as defined by the claims.

Claims (8)

1. a kind of reactor of cavitation jet processing excess sludge, the reactor includes blender, baffle, enters mud pipe, signal Transmitter, support leg, sludge out pipe, cavitation bubble jet emanator, cavitation jet device, sewage sludge reactor, inlet opening, detecting head, Jet port, control cabinet, conveyer and solenoid valve；

Wherein, it is provided with the enters mud pipe on the sewage sludge reactor outer wall, is provided on the sewage sludge reactor outer wall described Control cabinet, the control cabinet lower section are provided with the signal projector, and top is provided with the baffle in the sewage sludge reactor, It is provided with the blender among the baffle, the baffle lower surface is provided with the detecting head, in the sewage sludge reactor Wall is provided with the inlet opening above the baffle, and the inlet opening is connected with the cavitation jet device, the sludge Bottom is provided with the sludge out pipe in reactor, and the cavitation bubble jet emanator, the sky are provided with above the sludge out pipe It is provided with the jet port on bubble jet emanator side wall, the solenoid valve, the electromagnetism are provided with below the sludge out pipe It is provided with the conveyer below valve, the support leg is provided with below the sewage sludge reactor.

2. reactor as described in claim 1, it is characterised in that：The baffle is fixed by screws in the sewage sludge reactor Inner upper, the baffle are porous slabstone or porous metallic plate.

3. reactor as described in claim 1, it is characterised in that：The blender is fixed by screws on the baffle, The blender lower end is goed deep into inside excess sludge, and the blender is electrically connected with the control cabinet.

4. reactor as described in claim 1, it is characterised in that：The enters mud pipe is welded on the sewage sludge reactor outer wall On, and the position of the enters mud pipe is less than the position of the baffle.

5. reactor as described in claim 1, it is characterised in that：The sludge out pipe is welded on the sewage sludge reactor bottom, The sludge out pipe is up big and down small pyramidal structure, and the solenoid valve is mounted on by pipe collar below the sludge out pipe.

6. reactor as described in claim 1, it is characterised in that：The cavitation bubble jet emanator is nested in the sludge out pipe In top exterior walls, the cavitation bubble jet emanator is connected with the outlet side of the cavitation jet device.

7. reactor as claimed in any one of claims 1 to 6, it is characterised in that：The cavitation bubble jet emanator is ring junction Structure, there are four jet ports for tool, and four jet ports are equidistantly arranged on the cavitation bubble jet emanator outer wall, described The direction of four jet ports is identical.

8. reactor as claimed in claim 5, it is characterised in that：The inner wall of the sludge out pipe is equipped with helical blade, described Helical blade is spirally extended to small end from the big end of the sludge out pipe.