CN214781454U - Sludge treatment system - Google Patents
Sludge treatment system Download PDFInfo
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- CN214781454U CN214781454U CN202022976968.1U CN202022976968U CN214781454U CN 214781454 U CN214781454 U CN 214781454U CN 202022976968 U CN202022976968 U CN 202022976968U CN 214781454 U CN214781454 U CN 214781454U
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Abstract
The utility model belongs to the technical field of sludge treatment, a sludge treatment system is disclosed, include: a hydrothermal carbonization reactor, a solid-liquid separation device, a hydrothermal carbon and coal mixer, a gasification furnace and a steam drum; the hydrothermal carbonization reactor is provided with a water vapor inlet and a solid-liquid mixture outlet; the solid-liquid separation device is provided with a solid-liquid mixture inlet and a hydrothermal carbon outlet, and the solid-liquid mixture inlet is connected with the solid-liquid mixture outlet; the hydrothermal carbon and coal mixer is provided with a hydrothermal carbon inlet and a hydrothermal carbon and coal mixture outlet, and the hydrothermal carbon inlet is connected with the hydrothermal carbon outlet; the gasification furnace is provided with a hydrothermal carbon and coal mixture inlet, and the hydrothermal carbon and coal mixture inlet is connected with a hydrothermal carbon and coal mixture outlet; the steam drum is provided with a steam outlet, a circulating water inlet and a circulating water outlet, and the steam outlet is connected with the steam inlet. The utility model provides a sludge treatment system can realize reliable efficient mud utilization.
Description
Technical Field
The utility model relates to a sludge treatment technical field, in particular to sludge treatment system.
Background
Sludge is a main byproduct of municipal sewage treatment plants, and the yield of sludge is also increased sharply with the increase of urban population. At present, the method mainly comprises the treatment modes of sludge landfill, sludge anaerobic digestion, sludge composting, lime stable building material utilization, sludge incineration and the like which are harmless and have low recycling degree.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sludge treatment system solves the technical problem that among the prior art sludge treatment is innoxious and the resourceful degree is low.
In order to solve the technical problem, the utility model provides a sludge treatment system, include: a hydrothermal carbonization reactor, a solid-liquid separation device, a hydrothermal carbon and coal mixer, a gasification furnace and a steam drum;
the hydrothermal carbonization reactor is provided with a sludge inlet, a water vapor inlet and a solid-liquid mixture outlet;
the solid-liquid separation device is provided with a solid-liquid mixture inlet, a hydrothermal carbon outlet and a liquid product outlet, and the solid-liquid mixture inlet is connected with the solid-liquid mixture outlet;
the hydrothermal carbon and coal mixer is provided with a hydrothermal carbon inlet, a coal inlet and a hydrothermal carbon and coal mixture outlet, and the hydrothermal carbon inlet is connected with the hydrothermal carbon outlet;
the gasification furnace is provided with a hydrothermal carbon and coal mixture inlet, a crude synthesis gas outlet, a slag discharge port and a water inlet and outlet of a circulating heat exchange structure, and the hydrothermal carbon and coal mixture inlet is connected with the hydrothermal carbon and coal mixture outlet;
the steam drum is provided with a circulating water inlet and outlet and a steam outlet, the circulating water inlet and outlet are respectively connected with the circulating heat exchange structure inlet and outlet, and the steam outlet is connected with the steam inlet.
Further, the hydrothermal carbonization reactor includes: a reactor tank and a first stirrer;
the first stirrer is arranged in the reactor tank body;
the sludge inlet, the water vapor inlet and the solid-liquid mixture outlet are respectively arranged on the reactor tank body.
Further, the sludge inlet is arranged at the top of the reactor tank, the steam inlet is arranged at the lower part of the reactor tank, and the solid-liquid mixture outlet is arranged at the bottom of the reactor tank.
Further, the first stirrer is arranged below the sludge inlet and above the water vapor inlet.
Furthermore, the upper part of the reactor tank body is also provided with an exhaust port.
Further, the hydrothermal carbon and coal mixer includes: a mixer tank and a second agitator;
the second stirrer is arranged in the mixer tank body;
wherein the hydrothermal carbon inlet, the coal inlet and the hydrothermal carbon and coal mixture outlet are respectively arranged on the mixer tank.
Further, the hydrothermal carbon inlet and the coal inlet are arranged at the top of the mixer tank, the hydrothermal carbon and coal mixture outlet is arranged at the bottom of the mixer tank, and the second stirrer is arranged in the middle of the inner cavity of the mixer tank.
Further, the gasification furnace includes: a furnace tank body;
the furnace tank body is divided into a gasification chamber, a heat recovery chamber and a chilling chamber which are communicated from top to bottom;
the inlet of the mixture of the hydrothermal carbon and the coal is arranged at the top of the gasification chamber, the bottom of the gasification chamber is provided with a slag outlet, and the slag outlet is communicated with the heat recovery chamber;
the bottom of the heat recovery chamber is provided with a gas slag channel, and the gas slag channel is communicated with the chilling chamber;
the slag discharge port is arranged at the bottom of the chilling chamber, and a crude synthesis gas outlet is formed in the upper part of the chilling chamber.
Further, a chilling medium is contained in the chilling chamber, and the crude synthesis gas outlet is higher than the liquid level of the chilling medium;
the bottom end of the gas slag channel is connected with a down pipe, and a lower pipe orifice of the down pipe is immersed in the chilling medium.
Furthermore, a circulating heat exchange structure is arranged in the heat recovery chamber and is used for recovering high-temperature heat of the crude synthesis gas;
the water inlet and outlet of the circulating heat exchange structure are respectively connected with the water inlet and outlet of circulating water of the steam pocket;
the slag hole is surrounded by refractory materials;
the circulating heat exchange structure comprises a circulating water cooling device, and the gas slag channel is enclosed by the circulating water cooling device.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the sludge treatment system that provides in the embodiment of this application implements hydrothermal carbonization technology and handles mud, the effectual active ingredient that has utilized in the mud to gasify hydrothermal carbon and the coal that will obtain altogether, and make full use of the heat of high temperature synthetic gas, retrieve and produce vapor through heat reclamation device to high temperature synthetic gas heat, the vapor that produces is used for the hydrothermal carbonization reaction of mud, has improved whole system's utilization ratio and thermal efficiency. Meanwhile, coal gas generated by the reaction of coal and hydrothermal carbon can be used for preparing high-value shortage type hydrogen, and the economic benefit is considerable.
Drawings
Fig. 1 is a schematic structural diagram of a sludge treatment system provided by an embodiment of the present invention.
Detailed Description
The embodiment of the application solves the technical problems of harmlessness and low recycling degree of sludge treatment in the prior art by providing the sludge treatment system.
In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the specific embodiments of the present disclosure, and it should be understood that the specific features in the embodiments and examples of the present disclosure are detailed descriptions of the technical solutions of the present disclosure, but not limitations of the technical solutions of the present disclosure, and the technical features in the embodiments and examples of the present disclosure may be combined with each other without conflict.
Referring to fig. 1, a sludge treatment system includes: a hydrothermal carbonization reactor 1, a solid-liquid separation device 2, a hydrothermal carbon and coal mixer 3, a gasification furnace 33 and a steam drum 7.
The hydrothermal carbonization reactor 1 is provided with a sludge inlet 8, a steam inlet 10 and a solid-liquid mixture outlet 11; respectively and correspondingly introducing sludge to be treated and water vapor and then discharging a solid-liquid mixture after reaction.
The solid-liquid separation device 2 is provided with a solid-liquid mixture inlet 13, a hydrothermal carbon outlet 15 and a liquid product outlet 14, and the solid-liquid mixture inlet 13 is connected with the solid-liquid mixture outlet 11; namely, a solid-liquid mixture after the hydrothermal carbonization reaction is introduced, and after solid-liquid separation, hydrothermal carbon and liquid are respectively discharged.
The hydrothermal carbon and coal mixer 3 is provided with a hydrothermal carbon inlet 17, a coal inlet 19 and a hydrothermal carbon and coal mixture outlet 16, and the hydrothermal carbon inlet 17 is connected with the hydrothermal carbon outlet 15; namely, the hydrothermal carbon and the coal are introduced, and the mixture of the hydrothermal carbon and the coal obtained by mixing is discharged.
The gasification furnace 33 is provided with a hydrothermal carbon and coal mixture inlet 20, a crude synthesis gas outlet 28, a slag discharge port 29, a circulating heat exchange structure water inlet 25 and a circulating heat exchange structure water outlet 26, and the hydrothermal carbon and coal mixture inlet 20 is connected with the hydrothermal carbon and coal mixture outlet 16; namely, the mixture of the hydrothermal carbon and the coal is subjected to gasification reaction, the generated crude synthesis gas is discharged from the crude synthesis gas outlet 28, and slag is discharged from the slag discharge port 29; in the process, the heat is absorbed through a first circulating heat exchange structure built in the gasification furnace 33 and is circulated to a downstream process section for use.
The steam drum 7 is provided with a circulating water inlet 30, a circulating water outlet 31 and a steam outlet 32, the circulating water inlet 30 and the circulating water outlet 31 are respectively connected with a water inlet and a water outlet of the circulating heat exchange structure, and the steam outlet 31 is connected with the steam inlet 10; namely, high-temperature water vapor is generated in the steam drum 7 from the heat absorbed by the first circulating heat exchange structure and is delivered to the hydrothermal carbonization reactor 1 to participate in the hydrothermal carbonization reaction, so that the resource recycling rate is improved, and the reaction efficiency is improved.
The above-described device structures are described in detail below.
The hydrothermal carbonization reactor 1 includes: a reactor tank and a first stirrer 9; the first stirrer 9 is arranged in the reactor tank body; the device is used for scattering and homogenizing the introduced sludge so as to enable the sludge to be in contact reaction with water vapor fully.
Correspondingly, the sludge inlet 8, the steam inlet 10 and the solid-liquid mixture outlet 11 are respectively arranged on the reactor tank body and used as material circulation interfaces.
Further, the sludge inlet 8 is arranged at the top of the reactor tank, the water vapor inlet 10 is arranged at the lower part of the reactor tank, and the solid-liquid mixture outlet 11 is arranged at the bottom of the reactor tank; therefore, the water vapor can reversely contact with the scattered sludge and fully react.
Correspondingly, the first stirrer 9 is arranged below the sludge inlet 8 and above the water vapor inlet 10.
In order to ensure the safety of the air pressure in the tank body, the upper part of the tank body of the reactor is also provided with an air outlet 12.
In this embodiment, the hydrothermal carbon and coal mixer 3 includes: a mixer tank and second agitator 18; the second stirrer 18 is arranged in the mixer tank body; the device is used for fully scattering hydrothermal carbon and coal, so that the hydrothermal carbon and the coal are fully contacted, and the reaction effect is improved.
The hydrothermal carbon inlet 17, the coal inlet 19 and the hydrothermal carbon and coal mixture outlet 16 are respectively arranged on the mixer tank body and are used as interfaces for material circulation.
The hydrothermal carbon inlet 17 and the coal inlet 19 are arranged at the top of the mixer tank, the hydrothermal carbon and coal mixture outlet 16 is arranged at the bottom of the mixer tank, and the second stirrer 18 is arranged in the middle of the inner cavity of the mixer tank; so that the hydrothermal carbon and the coal can be fully smashed and mixed.
The gasification furnace 33 includes: a furnace tank body 21; the furnace tank body 21 is divided into a gasification chamber 4, a heat recovery chamber 5 and a chilling chamber 6 which are communicated from top to bottom; the hydrothermal carbon and coal mixture inlet 20 is arranged at the top of the gasification chamber 4, a slag outlet 23 is arranged at the bottom of the gasification chamber 4, and the slag outlet 23 is communicated with the heat recovery chamber 5; the mixture of the hydrothermal carbon and the coal enters the gasification chamber 4 from the hydrothermal carbon and coal mixture inlet 20 for gasification reaction, high-temperature synthesis gas is generated and is introduced into the heat recovery chamber 5.
The gasification chamber 4 is provided with a refractory material 22, and the refractory material 22 can be a water-cooled wall or a refractory brick; of course, other structures are possible as long as the gasification requirements are met.
The bottom of the heat recovery chamber 5 is provided with a gas-slag channel which is communicated with the chilling chamber 6, and the high-temperature synthesis gas is subjected to heat recovery in the high-temperature synthesis gas and then enters the chilling chamber 6; the slag discharge port 29 is arranged at the bottom of the chilling chamber 6, and a crude synthesis gas outlet 28 is formed in the upper part of the chilling chamber 6; the raw synthesis gas is discharged through the raw synthesis gas outlet 28.
Wherein, circulation heat transfer structure includes: the circulating water cooling device 24 is arranged in the heat recovery chamber 5, and is used for recovering high-temperature heat of the raw synthesis gas, the circulating water cooling device 24 can adopt a membrane water wall and radial tube panel structure, and can also adopt a double-membrane wall structure, but is not limited to the two structures, as long as the heat recovery can be met; wherein, the water inlet and outlet of the circulating water cooling device 24 are respectively connected with the water inlet and outlet of the steam drum; thereby carrying out water-medium circulation cooling in the heat recovery chamber 5, absorbing heat and circulating into the steam drum 7 through a cooling medium.
The chilling chamber 6 is filled with chilling medium, and the raw synthesis gas outlet 28 is higher than the liquid level of the chilling medium; the bottom end of the gas slag channel is connected with a down pipe 27, and the lower pipe orifice of the down pipe 27 is immersed in the chilling medium.
The slag hole is surrounded by the refractory material; the gas slag channel is enclosed by the circulating water cooling device.
Further, the first circulating water cooling device 22 comprises a first water-cooled wall, and the slag outlet 23 is surrounded by the first water-cooled wall; the second circulating water cooling device 24 comprises a second water-cooled wall, and the gas slag channel is enclosed by the second water-cooled wall.
Wherein, the first circulating water outlet 26 of the second circulating water cooling device 24 is arranged at the high position of the heat recovery chamber 5 and is connected with the second circulating water inlet 30 of the steam drum 7, the second circulating water outlet 31 of the steam drum 7 is connected with the first circulating water inlet 25 of the heat recovery chamber 5, and the first circulating water inlet 25 is arranged at the relatively low position of the heat recovery chamber 5.
The processing method implemented based on the above-described system will be described below. The processing method comprises the following steps:
the sludge and the water vapor are supplied to a hydrothermal carbonization reactor 1, and the sludge and the water vapor are in reverse contact reaction under the action of a hydrothermal carbonization stirrer 9, the reaction temperature in the hydrothermal carbonization reactor is 200-320 ℃, the reaction pressure is 1-3MPa, and the obtained solid-liquid mixture is sent to a solid-liquid separation device 2 through a solid-liquid mixture outlet 11.
The solid-liquid mixture is supplied to a solid-liquid separation device 2 through a solid-liquid mixture inlet 13 for solid-liquid separation, the obtained hydrothermal carbon is sent to a coal and hydrothermal carbon mixer 3 through a hydrothermal carbon outlet 15, and the liquid product is sent to a subsequent system through a liquid product outlet 14.
The hydrothermal carbon obtained as described above is supplied to the coal/hydrothermal carbon mixer 3 through the hydrothermal carbon inlet 17 and the coal inlet 19, and the both are sufficiently mixed by the mixing stirrer 18, and the resulting coal/hydrothermal carbon mixture is supplied to the gasification chamber 4 through the coal/hydrothermal carbon mixture outlet 16.
And (3) supplying the mixture of the coal and the hydrothermal carbon to a gasification chamber 4 through a burner 20 for gasification reaction at the reaction temperature of 1200-1600 ℃ and the reaction pressure of 4-6.5MPa, allowing the obtained high-temperature synthesis gas to enter a heat recovery chamber 5 for heat exchange with circulating water in a second water-cooled wall, recovering heat, and allowing the synthesis gas after heat exchange to enter a subsequent treatment system through a crude synthesis gas outlet 28.
And (3) supplying the circulating water in the second water-cooled wall after heat exchange to a steam drum 7 through a steam drum cooling circulating water inlet 30, performing gas-liquid separation on water, and allowing the generated steam to enter the hydrothermal carbonization reactor 1 through a steam outlet 32 of the steam drum to perform hydrothermal carbonization reaction with sludge.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the sludge treatment system that provides in the embodiment of this application implements hydrothermal carbonization technology and handles mud, the effectual active ingredient that has utilized in the mud to gasify hydrothermal carbon and the coal that will obtain altogether, and make full use of the heat of high temperature synthetic gas, retrieve and produce vapor through heat reclamation device to high temperature synthetic gas heat, the vapor that produces is used for the hydrothermal carbonization reaction of mud, has improved whole system's utilization ratio and thermal efficiency. Meanwhile, coal gas generated by the reaction of coal and hydrothermal carbon can be used for preparing high-value shortage type hydrogen, and the economic benefit is considerable.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. A sludge treatment system, comprising: a hydrothermal carbonization reactor, a solid-liquid separation device, a hydrothermal carbon and coal mixer, a gasification furnace and a steam drum;
the hydrothermal carbonization reactor is provided with a sludge inlet, a water vapor inlet and a solid-liquid mixture outlet;
the solid-liquid separation device is provided with a solid-liquid mixture inlet, a hydrothermal carbon outlet and a liquid product outlet, and the solid-liquid mixture inlet is connected with the solid-liquid mixture outlet;
the hydrothermal carbon and coal mixer is provided with a hydrothermal carbon inlet, a coal inlet and a hydrothermal carbon and coal mixture outlet, and the hydrothermal carbon inlet is connected with the hydrothermal carbon outlet;
the gasification furnace is provided with a hydrothermal carbon and coal mixture inlet, a crude synthesis gas outlet, a slag discharge port and a water inlet and outlet of a circulating heat exchange structure, and the hydrothermal carbon and coal mixture inlet is connected with the hydrothermal carbon and coal mixture outlet;
the steam drum is provided with a circulating water inlet and outlet and a steam outlet, the circulating water inlet and outlet are respectively connected with the circulating heat exchange structure inlet and outlet, and the steam outlet is connected with the steam inlet.
2. The sludge treatment system of claim 1, wherein the hydrothermal carbonization reactor comprises: a reactor tank and a first stirrer;
the first stirrer is arranged in the reactor tank body;
the sludge inlet, the water vapor inlet and the solid-liquid mixture outlet are respectively arranged on the reactor tank body.
3. The sludge treatment system of claim 2 wherein the sludge inlet is disposed at the top of the reactor tank, the water vapor inlet is disposed at the lower portion of the reactor tank, and the solid-liquid mixture outlet is disposed at the bottom of the reactor tank.
4. The sludge treatment system of claim 3 wherein the first agitator is disposed below the sludge inlet and above the water vapor inlet.
5. The sludge treatment system of claim 2 wherein the upper portion of the reactor tank is further vented.
6. The sludge treatment system of claim 1, wherein the hydrothermal carbon and coal mixer comprises: a mixer tank and a second agitator;
the second stirrer is arranged in the mixer tank body;
wherein the hydrothermal carbon inlet, the coal inlet and the hydrothermal carbon and coal mixture outlet are respectively arranged on the mixer tank.
7. The sludge treatment system of claim 6 wherein the hydrothermal carbon inlet and the coal inlet are disposed at a top of the mixer tank, the hydrothermal carbon and coal mixture outlet is disposed at a bottom of the mixer tank, and the second agitator is disposed in a middle portion of an inner cavity of the mixer tank.
8. The sludge treatment system of claim 1, wherein the gasifier comprises: a furnace tank body;
the furnace tank body is divided into a gasification chamber, a heat recovery chamber and a chilling chamber which are communicated from top to bottom;
the inlet of the mixture of the hydrothermal carbon and the coal is arranged at the top of the gasification chamber, the bottom of the gasification chamber is provided with a slag outlet, and the slag outlet is communicated with the heat recovery chamber;
the bottom of the heat recovery chamber is provided with a gas slag channel, and the gas slag channel is communicated with the chilling chamber;
the slag discharge port is arranged at the bottom of the chilling chamber, and a crude synthesis gas outlet is formed in the upper part of the chilling chamber.
9. The sludge treatment system of claim 8, wherein the quench chamber contains quench media, and wherein the raw syngas outlet is above a level of the quench media;
the bottom end of the gas slag channel is connected with a down pipe, and a lower pipe orifice of the down pipe is immersed in the chilling medium.
10. The sludge treatment system of claim 8, wherein the heat recovery chamber is provided with a circulating heat exchange structure for recovering high-temperature heat of the raw syngas;
the water inlet and outlet of the circulating heat exchange structure are respectively connected with the water inlet and outlet of circulating water of the steam pocket;
the slag hole is surrounded by refractory materials;
the circulating heat exchange structure comprises a circulating water cooling device, and the gas slag channel is enclosed by the circulating water cooling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022976968.1U CN214781454U (en) | 2020-12-08 | 2020-12-08 | Sludge treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022976968.1U CN214781454U (en) | 2020-12-08 | 2020-12-08 | Sludge treatment system |
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| CN214781454U true CN214781454U (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022976968.1U Active CN214781454U (en) | 2020-12-08 | 2020-12-08 | Sludge treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114618870A (en) * | 2022-04-25 | 2022-06-14 | 江苏泓润生物质能科技有限公司 | Multi-source waste resource utilization method |
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2020
- 2020-12-08 CN CN202022976968.1U patent/CN214781454U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114618870A (en) * | 2022-04-25 | 2022-06-14 | 江苏泓润生物质能科技有限公司 | Multi-source waste resource utilization method |
| CN114618870B (en) * | 2022-04-25 | 2023-02-24 | 江苏泓润生物质能科技有限公司 | Multi-source waste resource utilization method |
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Effective date of registration: 20220803 Address after: 100041 No. 68, Shijingshan Road, Beijing, Shijingshan District Patentee after: SHOUGANG GROUP Co.,Ltd. Patentee after: BEIJING SHOUGANG HUAXIA ENGINEERING TECHNOLOGY Co.,Ltd. Address before: 100041 No. 68, Shijingshan Road, Beijing, Shijingshan District Patentee before: SHOUGANG GROUP Co.,Ltd. |
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