CN217077344U - Integrated sludge pyrohydrolysis system - Google Patents

Abstract

The utility model discloses an integral type mud pyrohydrolysis system, include: the control module and the plurality of production modules are connected in sequence; the control module comprises a first conveyor unit for conveying sludge, a second conveyor unit for conveying a cooling medium and an electric control unit for realizing automatic operation of the system; the production module is respectively connected with the first conveyor unit and the hot steam conveying pipeline and is used for realizing sludge pyrohydrolysis; the production module is also connected with a second conveyor unit and used for recycling heat energy of the hydrolyzed sludge, and discharging the hydrolyzed and heat-exchanged sludge from the production module. The utility model has the advantages of compact structure, be convenient for assembly, easy operation, thermal-arrest hydrolysis and heat recovery in an organic whole, both realized the high-efficient pyrohydrolysis of mud, improved heat utilization rate again, also effectively reduced the investment cost of equipment simultaneously.

Description

Integrated sludge pyrohydrolysis system

Technical Field

The utility model belongs to the technical field of sludge treatment, concretely relates to integral type mud pyrohydrolysis system.

Background

For municipal sludge or industrial sludge carrying organic matters, a thermal hydrolysis process can be adopted for pretreatment no matter anaerobic digestion treatment or dehydration treatment is adopted subsequently. The thermal hydrolysis of the sludge means that: under certain temperature and pressure conditions, sludge is heated in a closed container, so that sludge flocs are disintegrated, microbial cells are broken, organic matters are released, macromolecules are hydrolyzed, and the settlement performance, the dehydration performance and the biodegradation performance of the sludge can be improved through thermal hydrolysis treatment, so that the efficiency and the quality of subsequent anaerobic digestion can be effectively improved.

The existing thermal hydrolysis reaction device in the domestic and foreign environment-friendly market is generally formed by combining various devices such as a homogenizing device, a slurrying device, a thermal hydrolysis tank body and a flash evaporation tank body, and is matched with auxiliary devices such as a corresponding stirring device, so that the defects of complicated structure, high equipment investment cost and the like are often caused. Moreover, a batch-order treatment process is adopted, so that the production efficiency is low; in addition, the existing thermal hydrolysis reaction device does not have the heat recovery function, and the process energy consumption is high.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide an integral type mud pyrohydrolysis system of compact structure, the assembly of being convenient for, easy operation, integrated pyrohydrolysis and heat recovery function.

In order to solve the technical problem, the utility model discloses a following technical scheme:

an integrated sludge pyrohydrolysis system comprising: the control module and the plurality of production modules are connected in sequence; the control module comprises a first conveyor unit for conveying sludge, a second conveyor unit for conveying a cooling medium and an electric control unit for realizing automatic operation of the system; the production module is respectively connected with the first conveyor unit and the hot steam conveying pipeline and is used for realizing sludge pyrohydrolysis; the production module is also connected with a second conveyor unit and used for recycling heat energy of the hydrolyzed sludge, and discharging the hydrolyzed and heat-exchanged sludge from the production module.

As a further improvement of the present invention, the production modules include a first production module and a second production module which have the same structure and are arranged in a mirror image manner; coil pipe components with the same structure are arranged inside the first production module and the second production module respectively, the coil pipe components are used for realizing sludge pyrohydrolysis or heat energy recovery, and the sludge after hydrolysis and heat exchange is discharged from a system through the coil pipe components.

As a further improvement, first production module and second production module are inside to be equipped with the same first coil assembly and the second coil assembly of structure respectively, first coil assembly is connected with first conveyer set and hot steam pipeline respectively for realize mud pyrohydrolysis, second coil assembly is connected with second conveyer set, is used for realizing that the mud after the hydrolysis carries out heat recovery, and the mud after the hydrolysis and the heat transfer is by second coil assembly discharge system.

As a further improvement of the utility model, the first coil assembly includes multilayer spiral coil, the multilayer spiral coil establishes ties each other, and the spiral coil that is located bottom or top layer is connected with first conveyor set or second coil assembly respectively for realize that mud is carried or is exported.

As a further improvement of the utility model, the flange short pipes are adopted between the adjacent spiral coil pipes for series connection.

As a further improvement of the utility model, a shunt component is arranged in the short pipe.

As a further improvement of the utility model, every layer the spiral coil all is equipped with the steam filling opening, the steam filling opening is connected with hot steam pipeline for the realization is to the hot steam of the interior efflux injection of first coil assembly, in order to accomplish mud pyrohydrolysis.

As a further improvement of the utility model, the junction of the first coil pipe component and the second coil pipe component is provided with a pressure relief vent for exhausting the gas mixed with in the hot sludge.

As a further improvement, all be equipped with coolant import and coolant export on first production module and the second production module for to the heat recovery in situ input coolant of production module, and carry out the countercurrent flow heat transfer with the hot mud in the coil pipe subassembly.

As a further improvement of the utility model, the first conveying unit comprises a screw type, plunger type or diaphragm type volume type pump unit.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses an integral type mud pyrohydrolysis system has formed the modularization through being connected control module group and a plurality of production module, and become the system that can carry out mud pyrohydrolysis production in succession, the heat recovery technology of mud pyrohydrolysis processing technology and high temperature mud has been realized high-efficiently, the cooling of high temperature mud has been ensured, the normal operating of the rear end dewatering equipment of being convenient for need not to add extra cooling heat abstractor again, compact structure has, area reduces greatly, investment cost greatly reduced's advantage. Furthermore, the modularized design is easy and flexible to assemble and convenient to transport and maintain, and according to the size of the sludge treatment scale, a plurality of production modules can be operated in series in a single line and expanded, a large-scale process system can also be formed by a plurality of lines in parallel, and the sludge treatment efficiency is obviously and flexibly improved.

2. The utility model discloses an integral type mud pyrohydrolysis system through setting every production module to the same standard structure, adopts symmetry mirror image formula butt joint when the installation, and is simple reliable, connect the convenience. Each production module is provided with the same steam injection port configuration, and when the production modules are positioned in a thermal hydrolysis process section, the production modules are connected with heat source steam; when the production module is in a waste heat utilization process section, steam is not introduced into the multi-layer serial spiral coil assembly, but cooling media are injected into the heat recovery layer outside the pipe, so that heat exchange and cooling of hot sludge inside the pipe are realized; according to the characteristics, the production modules can be mutually standby and replaced, whether steam and cooling medium are introduced or not is determined through valve adjustment, the production modules can be flexibly adjusted to be in a pyrohydrolysis process section or a waste heat utilization process section, and the application requirements of flexible arrangement and expansion on actual project sites are well met. When individual production modules need maintenance or replacement, the production modules can be conveniently and quickly disassembled and then directly replaced and installed by new production modules, and the production modules are efficient and reliable.

3. The utility model discloses an integral type mud pyrohydrolysis system has realized through first conveyer set that pending mud keeps continuous flow in the multilayer serial-type spiral coil assembly in the production module, has accomplished the heating process of pyrohydrolysis technology in proper order to reach the cooling process of waste heat utilization, finally the pump sending produces the module, and gets into rear end sludge dewatering system; in the waste heat utilization process section, a heat recovery layer in the production module is filled with a cooling medium, the cooling medium is kept in reverse circulation opposite to the flow direction of hot sludge through a second conveyor unit, the wall heat exchange with high-temperature sludge in the multilayer serial spiral coil pipe assembly is realized, and the cooling medium after heat exchange is pumped into the production module and enters a waste heat utilization unit; the multi-layer serial spiral coil assembly and the heat recovery layer in the production module not only finish the cooling of high-temperature sludge, but also realize the heat energy recovery and utilization to the maximum extent.

4. The utility model discloses an integral type mud pyrohydrolysis system can be according to project scale size, and the quantity of production module is connected in the continuous extension to realize larger-scale production. After a sufficient number of production modules are serially expanded, in order to better adapt to the increase of corresponding pipe resistance, pump body equipment with larger lift is only needed to be equipped for the first conveyor set for conveying sludge. Meanwhile, a plurality of production lines can be arranged in parallel according to the actual site conditions of the project, and the system design is very flexible.

5. The utility model discloses an integral type mud pyrohydrolysis system, through the mud temperature in the multilayer serial-type spiral coil subassembly and the outer coolant's of spiral coil temperature in the electric control unit real-time supervision production module, the propulsion of intelligent control technology and electric control valve's switching have realized that the propulsion of mud in the production module flows, coolant's circulation flow, feeding and row's material are automatic, are showing and are improving production efficiency.

Drawings

Fig. 1 is a schematic diagram of the structural principle of the integrated sludge pyrohydrolysis system of the present invention.

Fig. 2 is a schematic view of the structural principle of the middle spiral coil pipe of the present invention.

Illustration of the drawings: 1. a control module; 2. a first production module; 3. a second production module; 4. a first sludge feeding pipe; 5. a first conveyor set; 6. a first coolant feed pipe; 7. a second conveyor set; 8. an electrical control unit; 9. a first coil assembly; 10. a first heat recovery layer; 11. a hot steam delivery pipe; 12. a first steam injection port; 13. a second steam injection port; 14. a third steam injection port; 15. a fourth steam injection port; 16. a second sludge feeding pipe; 17. a first cooling medium outlet; 18. a first cooling medium inlet; 19. a second coil assembly; 20. a second heat recovery layer; 21. a pressure relief vent; 22. a fifth steam injection port; 23. a sixth steam injection port; 24. a seventh steam injection port; 25. an eighth steam injection port; 26. a first sludge discharge port; 27. a second cooling medium inlet; 28. a second cooling medium outlet; 29. connecting a pipeline; 30. a helical coil; 31. a second sludge discharge pipe; 32. a third sludge feeding pipe; a. b, c, d, e, f, g, h and i are all electric control valves.

Detailed Description

The invention will be further described with reference to the drawings and specific preferred embodiments without limiting the scope of the invention.

Example 1

As shown in fig. 1 and fig. 2, the utility model discloses an integral type sludge pyrohydrolysis system, include: the control module 1 and a plurality of production modules that connect gradually. The control module 1 comprises a first conveyor set 5 for conveying sludge, a second conveyor set 7 for conveying a cooling medium and an electric control unit 8 for realizing automatic operation of the system. The production module is respectively connected with the first conveyor unit 5 and the hot steam conveying pipeline 11 and is used for realizing sludge pyrohydrolysis; the production module is also connected with a second conveyor unit 7 and used for recycling heat energy of the hydrolyzed sludge, and discharging the hydrolyzed and heat-exchanged sludge from the production module. Specifically, in the embodiment, the first conveyor unit 5 is used for receiving the sludge with the water content of about 88-92% and providing the sludge pumping power of the whole system; the cooling medium circularly flows through the second conveyor unit 7, absorbs the heat of the sludge and then outputs the heat to the heat exchanger of the heat using unit, and the recycling of heat energy is realized.

It can be understood that in this embodiment, the first conveyor unit 5 may adopt a screw type, plunger type or diaphragm type volumetric pump set, and provides pumping power for the sludge to make the sludge continuously flow in the production module until the sludge leaves the system after the treatment is finished, so as to ensure the continuous performance of the thermal hydrolysis process. The second conveyor set 7 as a waste heat utilization module can be a conventional liquid conveying pump assembly. Furthermore, the number of the connected production modules can be continuously expanded according to the size of the project scale so as to realize larger-scale production. After a sufficient number of production modules are serially expanded, in order to better adapt to the increase of corresponding pipe resistance, pump body equipment with larger lift is only needed to be equipped for the first conveyor set for conveying sludge. Meanwhile, a plurality of production lines can be arranged in parallel according to the actual site conditions of the project, and the system design is very flexible.

In this embodiment, through being connected control module group 1 and a plurality of production module and having constituteed the modularization, and become the system that can carry out the production of mud pyrohydrolysis in succession, realized the heat recovery technology of mud pyrohydrolysis treatment process and high temperature mud high-efficiently, ensured the cooling of high temperature mud, the normal operating of rear end dewatering equipment of being convenient for need not to add extra cooling heat abstractor again, have compact structure, area reduces greatly, investment cost greatly reduced's advantage. Furthermore, the modularized design is easy and flexible to assemble and convenient to transport and maintain, and according to the size of the sludge treatment scale, a plurality of production modules can be operated in series in a single line and expanded, a large-scale process system can also be formed by a plurality of lines in parallel, and the sludge treatment efficiency is obviously and flexibly improved.

As shown in fig. 1, in the present embodiment, the production modules include a first production module 2 and a second production module 3 which have the same structure and are arranged in a mirror image. The coil pipe components with the same structure are arranged inside the first production module 2 and the second production module 3 respectively, the coil pipe components are used for realizing sludge pyrohydrolysis or heat energy recovery, and the sludge after hydrolysis and heat exchange is discharged from the coil pipe components. Specifically, establish multilayer serial-type spiral coil assembly in the production module, intraductal circulation mud, the outer closed jar of body of pipe is the heat recovery layer, is equipped with first heat recovery layer 10 in first production module 2 promptly, is equipped with second heat recovery layer 20 in the second production module 3. According to the arrangement requirement of the process section, a heat recovery layer in the production modules is filled with cooling medium, such as cooling water, pumped and flowed by the second conveyor unit 7, and exchanges heat with high-temperature sludge in the multilayer serial-connection type spiral coil pipe assembly, so that heat is taken out of each production module and conveyed to a heat using end, and waste heat recovery and utilization are realized.

Further, in this embodiment, first production module 2 and second production module 3 are inside to be equipped with the same first coil assembly 9 and second coil assembly 19 of structure respectively, and first coil assembly 9 is connected with first conveyer set 5 and hot steam pipeline 11 respectively for realize mud pyrohydrolysis, and second coil assembly 19 is connected with second conveyer set 7, is used for realizing that the mud after the hydrolysis carries out heat recovery, and the mud after the hydrolysis and the heat transfer is by second coil assembly 19 discharge system. That is, in this embodiment, the first production module 2 serves as a sludge pyrohydrolysis process section, and the second production module 3 serves as a waste heat utilization process section. It is understood that in other embodiments, the functions of the first production module 2 and the second production module 3 may be the same or may be interchanged.

In this embodiment, the first coil assembly 9 includes a plurality of layers of horizontally arranged spiral coils 30, the plurality of layers of spiral coils 30 are connected in series, the spiral coil 30 located at the bottommost layer is connected with the first conveyor unit 5, so as to input sludge into the first coil assembly 9, and the spiral coil 30 located at the topmost layer is connected with the second coil assembly 19, so as to output sludge out of the first coil assembly 9. The second coil assembly 19 is identical in structural arrangement to the first coil assembly 9 and will not be described in detail herein. It will be appreciated that the first coil assembly 9 and the second coil assembly 19 are both designed to be arranged in a counter-clockwise rotational arrangement according to the northern hemisphere water vortex capero phenomenon to maximise the use of the star self-turning force and reduce the overall pumping load to a certain extent. Meanwhile, the spiral pipe 30 horizontally arranged on each layer can adopt a mode of conveying mud anticlockwise while entering and exiting or entering and exiting, and the spiral pipe 30 horizontally arranged in layers realizes larger heat exchange area, more flexible combined dismounting and mounting mode and more convenient maintenance.

As shown in fig. 2, in the present embodiment, the middle connection ports of the adjacent spiral coils 30 are connected in series. Further, the adjacent spiral coil pipes 30 are connected in series by flange short pipes, and a shunt assembly is arranged in each short pipe, so that the flowing uniformity of sludge in the coil pipe assembly is improved, and the sludge thermal hydrolysis efficiency is improved. It will be appreciated that a conventional shunt assembly may be provided in the spool.

As shown in fig. 1, in this embodiment, each layer of the spiral coil 30 is provided with a steam injection port, and the steam injection port is connected to the hot steam delivery pipe 11 for injecting hot steam into the first coil assembly 9 by means of jet flow to complete sludge pyrohydrolysis. Specifically, a first steam injection port 12, a second steam injection port 13, a third steam injection port 14 and a fourth steam injection port 15 are respectively arranged in the first coil assembly 9, and an electric control valve is arranged between each steam injection port and the hot steam conveying pipeline 11, and the electric control unit 8 controls the opening and closing of each electric control valve; a fifth steam injection port 22, a sixth steam injection port 23, a seventh steam injection port 24, and an eighth steam injection port 25 are provided in the second coil assembly 19, respectively. High-temperature steam is injected into the thermal hydrolysis process section in a fixed-point jet mode, the steam injection direction is the same as the sludge flowing direction, the vaporized water releases latent heat, the sludge is mixed and heated to reach a thermal hydrolysis process state, the sludge is diluted, the sludge viscosity is reduced, and a pipeline is lubricated, so that the sludge has a better flow state inside the spiral coil 30, the auxiliary power of directional jet flow is provided, the continuity of the thermal hydrolysis process is guaranteed, and the load of the first conveyor set 5 for conveying the sludge is reduced.

In this embodiment, the first production module 2 and the second production module 3 are set to have the same standard structure, and are butted in a symmetrical mirror image manner during installation, so that the method is simple, reliable and convenient to connect. Each production module is provided with the same steam injection port configuration, and when the production modules are positioned in a thermal hydrolysis process section, the production modules are connected with heat source steam; when the production module is in a waste heat utilization process section, steam is not introduced into the multi-layer serial spiral coil assembly, but cooling media are injected into the heat recovery layer outside the pipe, so that heat exchange and cooling of hot sludge inside the pipe are realized; according to the characteristics, the production modules can be mutually standby and replaced, whether steam and cooling medium are introduced or not is determined through valve adjustment, the production modules can be flexibly adjusted to be in a pyrohydrolysis process section or a waste heat utilization process section, and the application requirements of flexible arrangement and expansion on actual project sites are well met. When individual production modules need maintenance or replacement, the production modules can be conveniently and quickly disassembled and then directly replaced and installed by new production modules, and the production modules are efficient and reliable.

In this embodiment, a pressure relief vent 21 is disposed at a connection between the first coil assembly 9 and the second coil assembly 19 for venting air entrained in the hot sludge. Specifically, the top of the pipeline that is used for realizing that second mud discharging pipe 31 on first coil assembly 9 and third mud feeding pipe 32 on the second coil assembly 19 are connected is equipped with the pressure release gas vent 21 of flange joint formula, and pressure release gas vent 21 can be collected the gas of coil assembly top gathering in first production module 2 and the second production module 3, discharges, also can handle the combustion gas for deodorization system through pipeline transport.

In this embodiment, all be equipped with coolant import and coolant export on first production module 2 and the second production module 3 for to the heat recovery in situ input coolant of production module, and carry out the countercurrent flow heat transfer with the hot mud in the coil pipe subassembly. Specifically, the first production module 2 is provided with a first cooling medium outlet 17 and a first cooling medium inlet 18, and the second production module 3 is provided with a second cooling medium inlet 27 and a second cooling medium outlet 28. In this embodiment, first production module 2 is as the pyrohydrolysis technology section, and heat recovery layer 10 is the state of unloading, and its first coolant outlet 17 and the first coolant import 18 of reserving are the enclosed state, need not to pour into the cooling water into, can also play the effect of isolated high temperature simultaneously. The second production module 3 is used as a waste heat utilization process section, and the output end of the second conveyor unit 7 is connected with the second cooling medium inlet 27 through the connecting pipeline 29, so that the cooling medium is input into the second heat recovery layer 20.

In this embodiment, the first conveyor unit 5 keeps the sludge to be treated flowing continuously in the multilayer tandem spiral coil assemblies in the first production module 2 and the second production module 3, and sequentially completes the heating treatment of the thermal hydrolysis process and the cooling treatment of waste heat utilization, and finally the sludge is pumped out of the production module and enters the rear-end sludge dewatering system. In the waste heat utilization process section, a heat recovery layer 20 in the second production module 3 is filled with cooling medium, the cooling medium is kept in reverse circulation opposite to the flow direction of hot sludge through a second conveyor unit 7, the wall heat exchange between the cooling medium and the high-temperature sludge in the second coil assembly 19 is realized, the cooling medium after heat exchange is pumped into the production module, and the cooling medium enters a waste heat utilization unit; the multi-layer serial spiral coil assembly and the heat recovery layer in the production module not only finish the cooling of high-temperature sludge, but also realize the heat energy recovery and utilization to the maximum extent.

Example 2

Utilize the utility model discloses an integral type sludge pyrohydrolysis system realizes that the mud that certain municipal sewage treatment plant produced accomplishes 130 ℃ basic pyrohydrolysis's processing technology. In the continuous operation working condition, according to the actual heating and temperature rising requirements, the first production module 2 is set as a pyrohydrolysis process section, and the second production module 3 is set as a waste heat utilization process section.

As shown in FIG. 1, the normal temperature sludge to be treated in the integrated sludge pyrohydrolysis system has a water content of about 89% and a pH of about 11 after being adjusted by adding alkali. The electric control unit 8 controls the electric control valves a and b to be opened, sludge firstly enters the first conveyor unit 5 through the first sludge feeding pipe 4, and is continuously conveyed to the first coil pipe assembly 9 through the second sludge feeding pipe 16 after being pumped by the first conveyor unit 5. The electric control unit 8 controls the electric control valves e, f, g and h to be opened, and high-temperature steam conveyed by the hot steam conveying pipe 11 is respectively injected into the multi-layer serial first coil pipe assembly 9 from the first steam injection port 12, the second steam injection port 13, the third steam injection port 14 and the fourth steam injection port 15 at fixed points according to needs to heat sludge ceaselessly. The steam jet direction is the same as the sludge flow direction, and the functions of diluting sludge, reducing sludge viscosity, lubricating pipelines and boosting to push the sludge to flow are achieved. The system keeps the sludge flowing, and determines the process residence time according to the pumping flow of the first conveyor set 5 regulated and controlled by the electric automatic control unit 8. In the multilayer tandem type first coil pipe assembly 9 of the first production module 2, the basic pyrohydrolysis process under the working condition of 130 ℃ is completely completed, and under the action of the driving force jointly generated by injecting steam at fixed points into the first conveyor unit 5, the first steam injection port 12, the second steam injection port 13, the third steam injection port 14 and the fourth steam injection port 15, the thermally hydrolyzed mixture enters the second production module 3 connected with the rear end through the second sludge discharge pipe 31, the pressure relief exhaust port 21 and the third sludge feed pipe 32. After the sludge is discharged, the electric control unit 8 controls the corresponding electric control valve to be closed. In the sludge pyrohydrolysis process, the first heat recovery layer 10 in the second production module 2 as the pyrohydrolysis process section is in an emptying state, and the reserved first cooling medium outlet 17 and the reserved first cooling medium inlet 18 are in a closed state, so that cooling water is not required to be injected, and meanwhile, the effect of isolating high temperature can be achieved.

As the second production module 3 of the waste heat utilization technology section, the multilayer serial second coil assembly 19 in it continuously lets in the high temperature mud that comes from accomplishing the pyrohydrolysis in the first production module 2, if there is the gas of gathering after the floating in the pipeline, the accessible control pressure release air vent 21 top electric control valve i opens in order to release, can collect the gas to the deodorization system to handle simultaneously. Meanwhile, the electric control unit 8 controls the electric control valves c and d to be opened, cooling water is pumped into the connecting pipeline 29 through the first cooling medium feeding pipe 6 by the second conveyor unit 7 and is continuously injected into the heat recovery layer 20 in the second production module 3 through the second cooling medium inlet 27 to form reverse flow with high-temperature sludge in the second coil assembly 19, the heat energy of the sludge with the initial temperature up to 130 ℃ is continuously absorbed through partition wall heat exchange, and the cooling water is discharged out of the second production module 3 through the second cooling medium outlet 28 at the top of the heat recovery layer 20 and goes to a heat utilization section to effectively recycle the heat. Finally, the low-temperature cooling water returns to the second conveyor unit 7 through the first cooling medium feeding pipe 6, and circulation of the waste heat utilization cooling medium is achieved.

After the sludge continuously passes through the second coil pipe assembly 19 in the second production module 3, the temperature is reduced to less than 60 ℃, and the sludge is discharged out of the system through the first sludge discharge port 26 and then is utilized by a high-temperature digestion system at the rear end. If the sludge discharged from the system needs to be directly subjected to high-dry dehydration treatment, a set of production module can be expanded and installed, so that sludge discharge at lower temperature (less than 50 ℃) is realized, and the normal operation of subsequent dehydration equipment is facilitated.

In this embodiment, the electrical automatic control unit 8 continuously monitors the internal pressure of the first coil assembly 9 and the second coil assembly 19 in the first production module 2 and the second production module 3, and when the pressure is obviously abnormal and too high, the electrical control valve i at the top of the pressure relief exhaust port 21 is automatically opened to release the redundant gas and pressure, so as to improve the operation safety of the system.

Further, in order to achieve more effective heat recovery, the electric automatic control unit 8 monitors the temperature of the second cooling medium outlet 28 of the second heat recovery layer 20 in the second production module 3 in real time, and regulates and controls the pumping power of the second conveyor unit 7 in real time according to the set sludge outlet temperature so as to adjust the flow rate of the circulating cooling medium, and achieve the aims of cooling the given sludge and utilizing the waste heat more effectively.

In this embodiment, through the temperature of the mud temperature in the multilayer serial-type spiral coil assembly and the outer cooling medium of spiral coil in the electric control unit 8 real-time supervision production module, the propulsion of intelligent control technology and the switching of automatically controlled valve have realized that mud impels flow, cooling medium's circulation flow, feeding and arrange the material automation in the production module, are showing and are improving production efficiency. The utility model discloses the design of mould quickening, compact reliable, area are less to can be according to the size of sludge treatment volume, many sets of batch configuration, with the realization production target of bigger degree.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. Those skilled in the art can make numerous changes and modifications to the disclosed embodiments, or modify equivalent embodiments, without departing from the spirit and scope of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims (10)

1. An integrated sludge pyrohydrolysis system, comprising: the control module (1) and the plurality of production modules are connected in sequence; the control module (1) comprises a first conveyor set (5) for conveying sludge, a second conveyor set (7) for conveying a cooling medium and an electric control unit (8) for realizing automatic operation of the system; the production module is respectively connected with the first conveyor unit (5) and the hot steam conveying pipeline (11) and is used for realizing sludge pyrohydrolysis; the production module is also connected with a second conveyor unit (7) and used for recycling heat energy of the hydrolyzed sludge, and discharging the hydrolyzed and heat-exchanged sludge from the production module.

2. The integrated sludge pyrohydrolysis system according to claim 1, wherein the production modules comprise a first production module (2) and a second production module (3) which are identical in structure and arranged in a mirror image; coil pipe components with the same structure are arranged inside the first production module (2) and the second production module (3) respectively, the coil pipe components are used for realizing sludge pyrohydrolysis or heat energy recovery, and the sludge after hydrolysis and heat exchange is discharged from a system through the coil pipe components.

3. The integrated sludge pyrohydrolysis system according to claim 2, wherein a first coil assembly (9) and a second coil assembly (19) which are identical in structure are arranged inside the first production module (2) and the second production module (3) respectively, the first coil assembly (9) is connected with the first conveyor set (5) and the hot steam conveying pipeline (11) respectively and is used for realizing sludge pyrohydrolysis, the second coil assembly (19) is connected with the second conveyor set (7) and is used for realizing heat energy recovery of hydrolyzed sludge, and the hydrolyzed and heat-exchanged sludge is discharged out of the system through the second coil assembly (19).

4. The integrated sludge pyrohydrolysis system according to claim 3, wherein the first coil assembly (9) comprises a plurality of layers of spiral coils (30), the spiral coils (30) are connected in series, and the spiral coils (30) on the bottom layer or the top layer are respectively connected with the first conveyor set (5) or the second coil assembly (19) for conveying or outputting sludge.

5. The integrated sludge pyrohydrolysis system of claim 4, wherein the adjacent spiral coils (30) are connected in series by using flange short pipes.

6. The integrated sludge pyrohydrolysis system of claim 5, wherein a flow diversion assembly is disposed within the short pipe.

7. The integrated sludge pyrohydrolysis system according to claim 4, wherein each layer of the spiral coil (30) is provided with a steam injection port, and the steam injection port is connected with a hot steam conveying pipeline (11) and used for injecting hot steam into the first coil component (9) in a jet mode so as to complete sludge pyrohydrolysis.

8. The integrated sludge pyrohydrolysis system according to claim 3, wherein a pressure relief vent (21) is provided at the connection of the first coil assembly (9) and the second coil assembly (19) for venting gas entrained in the hot sludge.

9. The integrated sludge pyrohydrolysis system according to any one of claims 2 to 8, wherein the first production module (2) and the second production module (3) are provided with a cooling medium inlet and a cooling medium outlet, and are used for inputting a cooling medium into a heat recovery layer of the production modules and performing countercurrent heat exchange with the hot sludge in the coil assembly.

10. The integrated sludge pyrohydrolysis system according to any one of claims 1 to 8, wherein the first conveyor set (5) comprises a screw, ram or diaphragm positive displacement type pump set.

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