CN104891766B - Sludge pyrohydrolysis device and method - Google Patents
Sludge pyrohydrolysis device and method Download PDFInfo
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- CN104891766B CN104891766B CN201510315891.4A CN201510315891A CN104891766B CN 104891766 B CN104891766 B CN 104891766B CN 201510315891 A CN201510315891 A CN 201510315891A CN 104891766 B CN104891766 B CN 104891766B
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Abstract
The invention relates to a sludge pyrohydrolysis device and method. The device comprises a tank body, wherein a material inlet is formed in the top of the tank body; a head cover is hermetically connected onto the material inlet; a material outlet is formed in the bottom of the tank body; a material unloading valve is arranged on the material outlet; a plurality of steam pipes are fixedly connected onto the side wall of the tank body with equal intervals; an inlet end of each steam pipe is positioned at the outer part of the tank body, and connected with steam source through a valve; after penetrating the side wall of the tank body, all the steam pipes extend downwards along the inner wall to the bottom of the tank body; an exhaust pipe is fixedly connected to the upper part of the tank body; a decompression valve is arranged on the exhaust pipe.
Description
Technical field
The present invention relates to a kind of sludge hot hydrolysis device and method, belong to technical field of sludge treatment.
Background technology
In municipal sludge process field, pyrohydrolysiss technique, as the preprocessing means of mud, is just gradually obtaining recognizing of industry
Can.Mud pyrohydrolysiss can improve the fluid property of mud, is easy to convey, and, pyrohydrolysiss can to realize rapidly mud harmless
Change, cell wall breaking, intracellular is released with reference to water and organic matter, it is favourable to be that follow-up mud organic matter degradation and processed provide
Condition, finally realizes stabilisation, the minimizing of mud, can produce biogas, realize resource.
, in engineer applied, because mud thermal capacitance is big, gapless, mobility are excessively poor, and heat conductivity is also poor for mud pyrohydrolysiss,
The short stream of steam easily occurs in mud heating process, causes mud in pyrohydrolysiss tank to be heated inequality or mud is difficult to heat, especially
It is to be easiest to appearance in the case of the pyrohydrolysiss tank of big volume, thus leading to the mud pyrohydrolysiss heating-up time long, power consumption
Excessive the problems such as, have a strong impact on Treatment of Sludge efficiency.
In addition, in existing sludge hot hydrolysis device, in order that mud heated fast, have needs setting mechanical agitation
Device.Because pyrohydrolysis reactor is pressure vessel, mechanical stirring device is arranged on pressure vessel, apparatus processing difficulty is big,
High precision.
Content of the invention
For the problems referred to above, it is an object of the invention to provide a kind of be heated evenly, mud pyrohydrolysiss dress that treatment effeciency is high
Put and method.
For achieving the above object, the present invention employs the following technical solutions: a kind of sludge hot hydrolysis device it is characterised in that:
It includes a tank body, and the top of described tank body is provided with a charging aperture, is tightly connected a top cover on described charging aperture, in institute
The bottom stating tank body is provided with a discharging opening, arranges a discharge gate on described discharging opening；First-class in the side wall of described tank body
Interval is fastenedly connected multiple steam pipes, and the entrance point of each described steam pipe is respectively positioned on the outside of described tank body and passes through a valve
Connect steam source of the gas；The side wall tailing edge inwall that each described steam pipe runs through described tank body extends downward described tank base；?
The top of described tank body is fastenedly connected an exhaustor, is provided with a pressure relief valve on described exhaustor.
Described tank body top is provided with a pressure transducer, described tank wall is provided with two or three temperature sensing
Device.
The quantity of described steam pipe is no less than five.
A kind of sludge hot method for hydrolysis, comprises the following steps: 1) adds sludge material by the charging aperture of tank body, then covers
Close top cover and so that it is sealed；2) open steam source of the gas, then open the valve on one of steam pipe, be passed through steam, when logical
After entering steam 10～15 minutes, close valve and stop air inlet；3) open pressure relief valve, the cold air in tank body is discharged；4) again
Secondary open described step 2) used in steam pipe on valve, be passed through steam into tank body, continue 10～15 minutes, afterwards
Close valve；5) sequentially pass through remaining steam pipe on tank wall and be passed through steam into tank body, duration of ventilation each time is equal
For 10～15 minutes, reach more than 0.4mpa until the temperature of sludge material reaches pressure in more than 140 DEG C and tank body；6) maintain
Pressure in tank body is in 0.4～0.8mpa, temperature be in 140～170 DEG C in the state of 40～60 minutes；7) close all enter
Steam pipe, opens pressure relief valve and carries out pressure release, exhaust steam discharges tank body；8) treat that in tank body, pressure is down to 0.1～0.03mpa, beat
Open discharge gate, the gravity using the overbottom pressure in tank body and sludge material completes discharge.
Due to taking above technical scheme, it has the advantage that the 1, present invention is provided with least in tank body to the present invention
Five steam inlet ends, are evenly distributed on around tank body, are directly heated using the mode that steam is passed through sludge material, lead to
Cross the pressure and temperature controlling the time of ventilation to control tank interior；Can be using alternately air inlet in being passed through steam course
Mode guarantees that mud is heated evenly, and with this on the premise of obtaining optimal pyrohydrolysiss effect and energy-saving effect, notable shortening is dirty
Mud heat time heating time, improve the treatment effeciency of mud pyrohydrolysiss.2nd, the steam pipe in the present invention is equidistantly spaced from tank wall,
That therefore can pass through steam plays sludge stirring effect in alternately entering of diverse location, thus replaces mechanical agitation.3rd, originally
Sludge material is discharged in invention under conditions of 0.1～0.03mpa, and exhaust steam yield is little, and thermal loss is few.
Brief description
Fig. 1 is the overall structure diagram of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is described in detail.
As shown in figure 1, the present invention proposes a kind of sludge hot hydrolysis device, it includes a tank body 1, at the top of tank body 1
It is provided with a charging aperture, a top cover 2 is tightly connected on charging aperture, the bottom of tank body 1 is provided with a discharging opening, in discharging opening
Upper setting one discharge gate 3.Multiple steam pipes 4, the import of each steam pipe 4 are fastenedly connected at equal intervals on the side wall of tank body 1
End is respectively positioned on the outside of tank body 1 and connects steam source of the gas (not shown) by a valve 5.Each steam pipe 4 runs through tank body 1
Side wall tailing edge inwall extends downward tank body 1 bottom, mud is heated it is achieved that material is uniform using alternately intake method
Heated fast, on the other hand, can also play sludge stirring effect using alternately intake method, thus replacing existing machinery to stir
Mix.It is fastenedly connected an exhaustor 6 on the top of tank body 1, a pressure relief valve 7 is provided with exhaustor 6.
In above-described embodiment, tank body 1 top is provided with a pressure transducer 8, tank body 1 side wall is provided with two or three
Temperature sensor 9, and casing protection is all installed.
In above-described embodiment, the quantity of steam pipe 4 is no less than five.
Based on said apparatus, the invention allows for a kind of sludge hot method for hydrolysis, comprise the following steps:
1) sludge material is added by the charging aperture of tank body 1, then cover top cover 2 and so that it is sealed；
2) open steam source of the gas, then open the valve 5 on one of steam pipe 4, be passed through steam, when being passed through steam 10
After～15 minutes, close valve 5 and stop air inlet；
3) open pressure relief valve 7, the cold air in tank body 1 is discharged；
4) be again turned on described step 2) used in steam pipe 4 on valve 5, be passed through steam into tank body 1, continue
10～15 minutes, close valve 5 afterwards；
5) sequentially pass through remaining steam pipe 4 on tank body 1 side wall and be passed through steam into tank body 1, duration of ventilation each time
It is 10～15 minutes, reach more than 0.4mpa until the temperature of sludge material reaches pressure in more than 140 DEG C and tank body 1；
6) maintain tank body 1 in pressure be in 0.4～0.8mpa, temperature be in 140～170 DEG C in the state of 40～60 points
Clock；
7) close all enter steam pipe 4, open pressure relief valve 7 and carry out pressure release, exhaust steam is discharged tank body 1 and (can be connected waste heat
Recovery system is used)；
8) treat that in tank body 1, pressure is down to 0.1～0.03mpa, open discharge gate 3, using the overbottom pressure in tank body 1 and mud
The gravity of material completes discharge.
The present invention is only illustrated with above-described embodiment, and the structure of each part, set location and its connection are all to have
Changed, on the basis of technical solution of the present invention, all improvement individual part being carried out according to the principle of the invention and equivalent
Conversion, all should not exclude outside protection scope of the present invention.
Claims (1)
1. a kind of sludge hot method for hydrolysis, it be based on sludge hot hydrolysis device and implement it is characterised in that:
Described sludge hot hydrolysis device includes a tank body, and the top of described tank body is provided with a charging aperture, in described charging aperture
On be tightly connected a top cover, the bottom of described tank body is provided with a discharging opening, a discharge gate is arranged on described discharging opening；
Multiple steam pipes are fastenedly connected on the side wall of described tank body, the entrance point of each described steam pipe is respectively positioned on described tank at equal intervals
The outside of body and by one valve connect steam source of the gas；It is fastenedly connected an exhaustor on the top of described tank body, in described aerofluxuss
One pressure relief valve is provided with pipe；The side wall tailing edge inwall that each described steam pipe runs through described tank body extends downward described tank body
Bottom；
Described sludge hot method for hydrolysis comprises the following steps:
1) sludge material is added by the charging aperture of tank body, then cover top cover and so that it is sealed；
2) open steam source of the gas, then open the valve on one of steam pipe, be passed through steam, when being passed through 10～15 points of steam
Zhong Hou, closes valve and stops air inlet；
3) open pressure relief valve, the cold air in tank body is discharged；
4) be again turned on described step 2) used in steam pipe on valve, be passed through steam into tank body, continue 10～15
Minute, close valve afterwards；
5) sequentially passing through remaining steam pipe on tank wall and be passed through steam into tank body, duration of ventilation each time is 10～
15 minutes, reach more than 0.4mpa until the temperature of sludge material reaches pressure in more than 140 DEG C and tank body；
6) maintain tank body in pressure be in 0.4～0.8mpa, temperature be in 140～170 DEG C in the state of 40～60 minutes；
7) close all enter steam pipe, open pressure relief valve and carry out pressure release, exhaust steam discharges tank body；
8) treat that in tank body, pressure is down to 0.1～0.03mpa, open discharge gate, using the overbottom pressure in tank body and sludge material
Gravity completes discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510315891.4A CN104891766B (en) | 2015-06-10 | 2015-06-10 | Sludge pyrohydrolysis device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510315891.4A CN104891766B (en) | 2015-06-10 | 2015-06-10 | Sludge pyrohydrolysis device and method |
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| Publication Number | Publication Date |
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| CN104891766A CN104891766A (en) | 2015-09-09 |
| CN104891766B true CN104891766B (en) | 2017-01-25 |
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| CN201510315891.4A Active CN104891766B (en) | 2015-06-10 | 2015-06-10 | Sludge pyrohydrolysis device and method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347637A (en) * | 2015-12-14 | 2016-02-24 | 北京洁绿科技发展有限公司 | Continuous sludge pyrohydrolysis system and method |
| CN111589365A (en) * | 2020-05-30 | 2020-08-28 | 管锁荣 | Preparation device and preparation method of biofertilizer for soil improvement |
| CN111807387A (en) * | 2020-07-31 | 2020-10-23 | 山东财富化工有限公司 | Potassium nitrate purification device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202465470U (en) * | 2012-02-21 | 2012-10-03 | 北京科力丹迪技术开发有限责任公司 | Hydrothermal reactor of sludge hydrothermal drying treatment device |
| CN104355511A (en) * | 2014-10-24 | 2015-02-18 | 西安华陆环保设备有限公司 | Sludge pyrohydrolysis method and sludge pyrohydrolysis system |
| CN204737870U (en) * | 2015-06-10 | 2015-11-04 | 北京洁绿科技发展有限公司 | Mud pyrohydrolysis device |
-
2015
- 2015-06-10 CN CN201510315891.4A patent/CN104891766B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202465470U (en) * | 2012-02-21 | 2012-10-03 | 北京科力丹迪技术开发有限责任公司 | Hydrothermal reactor of sludge hydrothermal drying treatment device |
| CN104355511A (en) * | 2014-10-24 | 2015-02-18 | 西安华陆环保设备有限公司 | Sludge pyrohydrolysis method and sludge pyrohydrolysis system |
| CN204737870U (en) * | 2015-06-10 | 2015-11-04 | 北京洁绿科技发展有限公司 | Mud pyrohydrolysis device |
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| CN104891766A (en) | 2015-09-09 |
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Address after: 100084 Beijing city Haidian District Nongda Road No. 1 Building No. 2 hospital B block 618 Patentee after: Beijing clean green environment Polytron Technologies Inc Address before: 102299 Beijing city Changping District Nan Shao Zhen He Ying Road No. 8 Building No. 21 hospital business Villa Patentee before: Beijing Jeegreen Technology Co., Ltd. |
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Denomination of invention: Sludge pyrohydrolysis device and method Effective date of registration: 20180809 Granted publication date: 20170125 Pledgee: Huaxia Bank Limited by Share Ltd Zhongguancun Beijing branch Pledgor: Beijing clean green environment Polytron Technologies Inc Registration number: 2018990000664 |
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Date of cancellation: 20190819 Granted publication date: 20170125 Pledgee: Huaxia Bank Limited by Share Ltd Zhongguancun Beijing branch Pledgor: Beijing clean green environment Polytron Technologies Inc Registration number: 2018990000664 |