CN212833370U - Integrated sludge pyrohydrolysis treatment device - Google Patents
Integrated sludge pyrohydrolysis treatment device Download PDFInfo
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- CN212833370U CN212833370U CN202021653052.6U CN202021653052U CN212833370U CN 212833370 U CN212833370 U CN 212833370U CN 202021653052 U CN202021653052 U CN 202021653052U CN 212833370 U CN212833370 U CN 212833370U
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Abstract
The utility model discloses an integrated sludge pyrohydrolysis treatment device, which comprises a sludge pulper, a slurry pump and a reaction tank, wherein a discharge port of the sludge pulper is communicated with a feed port of the slurry pump in an airtight manner through a pipeline, the reaction tank comprises a tank body, a screw conveyor, a steam heating pipeline and a condensate collecting pipe, the tank body is horizontally arranged in a cylindrical shape, the screw conveyor is arranged in the tank body, the tank body is arranged at the front end of the screw conveyor and is provided with a feed pipe orifice, the tank body is arranged at the tail end of the screw conveyor and is provided with a discharge pipe orifice, the feed pipe orifice is communicated with the discharge port of the slurry pump in an airtight manner, the discharge pipe orifice is communicated with, and the steam heating pipeline is arranged around the outer wall of the tank body along the long axis of the tank body, the front end of the steam heating pipeline is communicated with a steam source, the bottommost end of the steam heating pipeline is provided with a drain hole, and the drain holes are all communicated with a condensate collecting pipe in an airtight mode. The utility model belongs to the sludge treatment device field, the advantage compared with the prior art lies in: high treatment efficiency and high steam utilization rate.
Description
Technical Field
The utility model relates to a sludge treatment device field specifically indicates an integration mud pyrohydrolysis processing apparatus.
Background
In recent years, with the prominent problem of sludge in China and the increasing importance of the country on environmental protection, the reduction, stabilization and harmless treatment of sludge in cities and towns are scheduled, and a batch of sludge treatment facilities are built. In order to ensure the efficient operation of the anaerobic sludge digestion system and realize the stabilization and harmlessness of the sludge, a reasonable pretreatment technology is imperative. The sludge pyrohydrolysis technology is one of the main pretreatment technologies for anaerobic digestion of sludge, can realize wall breaking of the sludge, dissolution of organic matters and killing of pathogens, and is widely applied to practical engineering. The sludge pyrohydrolysis technology has the working principle that sludge (generally with the water content of 85-90%) and saturated steam with the temperature of 150-260 ℃ and the pressure of 1.4-2.6 MPa are added into a closed reaction kettle, the sludge is indirectly heated through the steam, sludge zoogloea, internal microorganisms and organic matters are hydrolyzed and wall-broken, and therefore cells are inactivated, and meanwhile, the organic matters in the cells, such as protein, polysaccharide and the like, are released and enter supernatant.
At present, the flow of a sludge thermal hydrolysis treatment line is overlong, the occupied area is large, a reaction kettle is mostly a tank body, the flow of discharging sludge is more complicated, and the integrated flow cannot be realized, so that the steam utilization rate and the sludge treatment efficiency can be affected badly.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to overcome above technical defect, provide an integration mud pyrohydrolysis processing apparatus that treatment effeciency is high, steam utilization is high.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the utility model relates to an integrated sludge pyrohydrolysis treatment device, which comprises a sludge crusher, a slurry pump and a reaction tank, wherein a discharge port of the sludge crusher is communicated with a feed inlet of the slurry pump in a pipeline airtight manner, the reaction tank comprises a tank body, a screw conveyer, a steam heating pipeline and a condensate collecting pipe, the tank body is of a closed cylindrical structure which is horizontally arranged, the screw conveyer is arranged in the tank body, a feed pipe opening is formed at the front end of the screw conveyer, the tank body is arranged at the tail end of the screw conveyer, a discharge pipe opening is formed at the tail end of the screw conveyer, the feed pipe opening is communicated with the discharge port of the slurry pump in an airtight manner, the steam heating pipeline is in a spiral shape and surrounds the outer wall of the tank body along the long axis of the tank body, and the front end of the steam heating pipeline is communicated with a steam source, and a drain hole is formed at the bottommost end of the steam heating pipeline, and the drain holes are all in airtight communication with a condensate collecting pipe.
Further, the tank body and the steam heating pipeline are made of steel, and the steam heating pipeline is in close contact with the tank body.
Furthermore, the tail end of the steam heating pipeline is communicated with a dead steam recovery device, and the condensed water collecting pipe is communicated with a steam-water separation device.
Further, the valve is a gate valve.
Further, the spiral blade of the spiral conveyor is a shaftless spiral blade, and the outermost end of the spiral blade of the spiral conveyor is tightly attached to the inner wall of the tank body.
After the structure is adopted, compared with the prior art, the utility model the advantage that has is: the integrated sewage treatment device adopts the sludge pulper and the mud pump to pretreat and pressurize sludge, and uses the reaction tank to carry out pyrohydrolysis on sewage, so that the device has compact structure, small occupied area and high treatment efficiency; the retort utilizes screw conveyer stirring mud, utilizes steam heating pipeline to heat the jar body, not only can guarantee that mud decomposes completely, and steam contactless mud moreover, consequently can follow-up connection exhaust steam recovery unit carry out recycle once more, can make high temperature steam rational utilization, and the utilization efficiency is high.
Drawings
FIG. 1 is a schematic structural view of an integrated sludge pyrohydrolysis treatment device of the present invention.
As shown in the figure: 1. the device comprises a sludge pulper, 2, a slurry pump, 3, a reaction tank, 4, a tank body, 5, a screw conveyer, 6, a steam heating pipeline, 7, a feeding pipe orifice, 8, a discharging pipe orifice, 9, a valve, 10, a drain hole, 11 and a condensate collecting pipe.
Detailed Description
The following description is only for the preferred embodiment of the present invention, and the protection scope of the present invention is not limited thereby, the present invention will be further explained with reference to the drawings and the embodiments.
Example, see figure 1: the utility model relates to an integrated sludge pyrohydrolysis treatment device, which comprises a sludge pulper 1 (a sludge horizontal shear type crusher: DS-40 type), a mud pump 2 (a sludge reflux pump: 2PN type) and a reaction tank 3, wherein the sludge pulper 1 is a common pretreatment device in the field of sludge treatment, can shred larger and harder impurities in sludge, and the mud pump 2 is used for conveying more viscous fluid; the discharge port of the sludge pulper 1 is communicated with the feed port of the slurry pump 2 in an airtight manner through a pipeline, the reaction tank 3 comprises a tank body 4, a screw conveyor 5, a steam heating pipeline 6 and a condensate collecting pipe 11, the tank body 4 is of a closed cylindrical structure horizontally arranged, the screw conveyor 5 is arranged in the tank body 4, the connection part of the screw conveyor 5 and the tank body 4 is in airtight connection, the tank body 4 is positioned at the front end of the screw conveyor 5 and provided with a feed pipe opening 7, the tank body 4 is positioned at the tail end of the screw conveyor 5 and provided with a discharge pipe opening 8, the feed pipe opening 7 is in airtight communication with the discharge port of the slurry pump 2, the discharge pipe opening 8 is in airtight communication with a valve 9, the steam heating pipeline 6 is in a spiral shape and surrounds the outer wall of the tank body 4 along the long axis of the tank body 4, and the front end of the steam heating pipeline 6 is communicated with a, the bottommost end of the steam heating pipeline 6 is provided with a drain hole 10, and the drain holes 10 are all in airtight communication with a condensate collecting pipe 11.
The tank body 4 and the steam heating pipeline 6 are both made of steel, the steam heating pipeline 6 is arranged in close contact with the tank body 4, pipelines made of steel materials are good in heat conduction performance, and heat exchange is carried out by means of mutual contact;
the tail end of the steam heating pipeline 6 is communicated with an exhaust steam recovery device, the condensate collecting pipe 11 is communicated with a steam-water separation device, and the exhaust steam recovery device and the steam-water separation device can recover and recycle steam, so that the utilization efficiency is improved, and the pressure in the steam heating pipeline 6 can be maintained;
the valve 9 is a gate valve; the spiral blade of the spiral conveyor 5 is a shaftless spiral blade, and the outermost end of the spiral blade of the spiral conveyor 5 is tightly attached to the inner wall of the tank body 4.
When the sludge treatment device is used specifically, the valve 9 is closed firstly, sludge is poured into a feeding hole of the sludge crusher 1, the sludge crusher 1 crushes the sludge, the sludge enters the sludge pump 2 through a pipeline, the sludge pump 2 pressurizes the sludge to enable the sludge to enter the reaction tank 3, and the sludge is stirred by the screw conveyer 5 in the tank body 4 and moves towards the tail end of the tank body 4; high-temperature steam is introduced into the steam heating pipeline 6, the high-temperature steam is condensed in the pipeline and releases heat, heat is conducted through the tank body 4, therefore, sludge is subjected to pyrohydrolysis, water condensed by the steam enters the steam-water separation device through the condensate collecting pipe 11, and the residual steam enters the exhaust steam recovery device; after a period of time, the thermal hydrolysis of the sludge is completed, the valve 9 is opened, and the sludge is recovered from the discharge pipe opening 8 of the tank 4.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (5)
1. The utility model provides an integration mud pyrohydrolysis processing apparatus which characterized in that: comprises a sludge pulper (1), a slurry pump (2) and a reaction tank (3), wherein a discharge hole of the sludge pulper (1) is communicated with a feed inlet of the slurry pump (2) through a pipeline in an airtight manner, the reaction tank (3) comprises a tank body (4), a screw conveyor (5), a steam heating pipeline (6) and a condensate collecting pipe (11), the tank body (4) is of a closed cylindrical structure which is horizontally arranged, the screw conveyor (5) is arranged in the tank body (4), the tank body (4) is positioned at the front end of the screw conveyor (5) and is provided with a feed pipe orifice (7), the tank body (4) is positioned at the tail end of the screw conveyor (5) and is provided with a discharge pipe orifice (8), the feed pipe orifice (7) is communicated with the discharge hole of the slurry pump (2) in an airtight manner, and the discharge pipe orifice (8) is communicated with a valve (9) in an airtight manner, the steam heating pipeline (6) is spiral and is arranged around the outer wall of the tank body (4) along the long axis of the tank body (4), the front end of the steam heating pipeline (6) is communicated with a steam source, a drain hole (10) is formed in the bottommost end of the steam heating pipeline (6), and the drain holes (10) are all in airtight communication with a condensate collecting pipe (11).
2. The integrated sludge pyrohydrolysis treatment device according to claim 1, wherein: the tank body (4) and the steam heating pipeline (6) are made of steel, and the steam heating pipeline (6) is in close contact with the tank body (4).
3. The integrated sludge pyrohydrolysis treatment device according to claim 1 or 2, wherein: the tail end of the steam heating pipeline (6) is communicated with a dead steam recovery device, and the condensed water collecting pipe (11) is communicated with a steam-water separation device.
4. The integrated sludge pyrohydrolysis treatment device according to claim 3, wherein: the valve (9) is a gate valve.
5. The integrated sludge pyrohydrolysis treatment device according to claim 4, wherein: the spiral blade of the spiral conveyor (5) is a shaftless spiral blade, and the outermost end of the spiral blade of the spiral conveyor (5) is tightly attached to the inner wall of the tank body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021653052.6U CN212833370U (en) | 2020-08-10 | 2020-08-10 | Integrated sludge pyrohydrolysis treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021653052.6U CN212833370U (en) | 2020-08-10 | 2020-08-10 | Integrated sludge pyrohydrolysis treatment device |
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| Publication Number | Publication Date |
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| CN212833370U true CN212833370U (en) | 2021-03-30 |
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| CN202021653052.6U Active CN212833370U (en) | 2020-08-10 | 2020-08-10 | Integrated sludge pyrohydrolysis treatment device |
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