CN104891766A - Sludge pyrohydrolysis device and method - Google Patents
Sludge pyrohydrolysis device and method Download PDFInfo
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- CN104891766A CN104891766A CN201510315891.4A CN201510315891A CN104891766A CN 104891766 A CN104891766 A CN 104891766A CN 201510315891 A CN201510315891 A CN 201510315891A CN 104891766 A CN104891766 A CN 104891766A
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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, thermal hydrolysis technique, as the preprocessing means of mud, obtains the accreditation of industry just gradually.Sludge hot hydrolysis can improve the fluid property of mud, be convenient to conveying, and, thermal hydrolysis can realize sewage sludge harmlessness rapidly, cell wall breaking, and in born of the same parents, Bound moisture and organic matter are released, for follow-up mud organic matter degradation and processed provide favourable condition, finally realize the stabilization of mud, minimizing, can biogas be produced, realize resource utilization.
Sludge hot hydrolysis is in engineer applied, because mud thermal capacitance is large, the non-constant of gapless, mobility, thermal conductivity is also poor, easily occurs the short stream of steam in mud heat-processed, causes be heated inequality or mud of mud in thermal hydrolysis tank to be difficult to heating, especially the most easily occur when the thermal hydrolysis tank of large volume, thus it is long to cause sludge hot to be hydrolyzed the heating-up time, the problem such as consume energy excessive, has a strong impact on sludge treatment efficiency.
In addition, in existing sludge hot hydrolysis device, in order to make mud heated fast, needing of having arranges mechanical stirring device.Because thermal hydrolysis reactor is pressurized vessel, pressurized vessel arranges mechanical stirring device, apparatus processing difficulty is large, and precision is high.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind ofly to be heated evenly, sludge hot hydrolysis device that processing efficiency is high and method.
For achieving the above object, the present invention is by the following technical solutions: a kind of sludge hot hydrolysis device, it is characterized in that: it comprises a tank body, the top of described tank body is provided with an opening for feed, described opening for feed is tightly connected a top cover, the bottom of described tank body is provided with a discharge port, described discharge port arranges a discharge gate; The sidewall of described tank body is fastenedly connected multiple vapour pipe at equal intervals, and the entrance end of vapour pipe described in each is all positioned at the outside of described tank body and connects steam source of the gas by a valve; Described tank base is extended downward along inwall after each described vapour pipe runs through the sidewall of described tank body; Be fastenedly connected a vapor pipe on the top of described tank body, described vapor pipe is provided with a pressure relief valve.
Described tank body top is provided with a pressure transmitter, described tank wall is provided with two or three temperature sensors.
The quantity of described vapour pipe is no less than five.
A kind of sludge hot method for hydrolysis, comprises the following steps: 1) add sludge material by the opening for feed of tank body, then covers top cover and make it seal; 2) open steam source of the gas, then open the valve on one of them vapour pipe, pass into steam, when passing into steam after 10 ~ 15 minutes, valve-off stops air inlet; 3) open pressure relief valve, the freezing air in tank body is discharged; 4) again open described step 2) in valve on the vapour pipe that uses, in tank body, pass into steam, continue 10 ~ 15 minutes, valve-off afterwards; 5) sequentially pass through remaining vapour pipe on tank wall and pass into steam in tank body, aeration time is each time 10 ~ 15 minutes, until the temperature of sludge material reaches more than 140 DEG C and tank body internal pressure reaches more than 0.4Mpa; 6) 40 ~ 60 minutes are maintained under the state that pressure is in 0.4 ~ 0.8MPa, temperature is in 140 ~ 170 DEG C in tank body; 7) close all enter vapour pipe, open pressure relief valve and carry out pressure release, exhaust steam discharge tank body; 8) treat that tank body internal pressure is down to 0.1 ~ 0.03Mpa, open discharge gate, utilize the gravity of the overbottom pressure in tank body and sludge material to complete discharge.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention is provided with at least five steam inlet ends in tank body, be evenly distributed on around tank body, utilize mode steam being passed into sludge material directly to heat, controlled the pressure and temperature of tank interior by the time controlling ventilation; The mode of alternately air inlet can be adopted to guarantee that mud is heated evenly passing in steam course, with this under the prerequisite obtaining best thermal hydrolysis effect and energy-saving effect, significantly shorten mud heat-up time, improve the processing efficiency of sludge hot hydrolysis.2, the vapour pipe in the present invention is arranged at equal intervals on tank wall, therefore can play sludge stirring effect by steam alternately entering of different positions, replace mechanical stirring thus.3, the present invention discharges sludge material under the condition of 0.1 ~ 0.03Mpa, and exhaust steam generation is little, and calorific loss is few.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Embodiment
Below in conjunction with 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 comprises a tank body 1, the top of tank body 1 is provided with an opening for feed, opening for feed is tightly connected a top cover 2, and the bottom of tank body 1 is provided with a discharge port, and discharge port arranges a discharge gate 3.The sidewall of tank body 1 is fastenedly connected multiple vapour pipe 4 at equal intervals, and the entrance end of each vapour pipe 4 is all positioned at the outside of tank body 1 and connects steam source of the gas (not shown) by a valve 5.Extend downward bottom tank body 1 along inwall after each vapour pipe 4 runs through the sidewall of tank body 1, adopt alternately intake method to heat mud, achieve the even heated fast of material, on the other hand, adopt alternately intake method also can play sludge stirring effect, thus replace existing mechanical stirring.Be fastenedly connected a vapor pipe 6 on the top of tank body 1, vapor pipe 6 is provided with a pressure relief valve 7.
In above-described embodiment, tank body 1 top is provided with a pressure transmitter 8, tank body 1 sidewall is provided with two or three temperature sensors 9, and all mounting sleeve protections.
In above-described embodiment, the quantity of vapour 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) add sludge material by the opening for feed of tank body 1, then cover top cover 2 and make it seal;
2) open steam source of the gas, then open the valve 5 on one of them vapour pipe 4, pass into steam, when passing into steam after 10 ~ 15 minutes, valve-off 5 stops air inlet;
3) open pressure relief valve 7, the freezing air in tank body 1 is discharged;
4) again open described step 2) in valve 5 on the vapour pipe 4 that uses, in tank body 1, pass into steam, continue 10 ~ 15 minutes, valve-off 5 afterwards;
5) sequentially pass through remaining vapour pipe 4 on tank body 1 sidewall and pass into steam in tank body 1, aeration time is each time 10 ~ 15 minutes, until the temperature of sludge material reaches more than 140 DEG C and tank body 1 internal pressure reaches more than 0.4Mpa;
6) 40 ~ 60 minutes are maintained under the state that pressure is in 0.4 ~ 0.8MPa, temperature is in 140 ~ 170 DEG C in tank body 1;
7) close all enter vapour pipe 4, open pressure relief valve 7 and carry out pressure release, exhaust steam discharge tank body 1 (residual neat recovering system can be connected be used);
8) treat that tank body 1 internal pressure is down to 0.1 ~ 0.03Mpa, open discharge gate 3, utilize the gravity of the overbottom pressure in tank body 1 and sludge material to complete discharge.
The present invention is only described with above-described embodiment; the structure of each parts, setting position and connection thereof all can change to some extent; on the basis of technical solution of the present invention; all improvement of carrying out individual part according to the principle of the invention and equivalents, all should not get rid of outside protection scope of the present invention.
Claims (4)
1. a sludge hot hydrolysis device, it is characterized in that: it comprises a tank body, the top of described tank body is provided with an opening for feed, described opening for feed is tightly connected a top cover, the bottom of described tank body is provided with a discharge port, described discharge port arranges a discharge gate; The sidewall of described tank body is fastenedly connected multiple vapour pipe at equal intervals, and the entrance end of vapour pipe described in each is all positioned at the outside of described tank body and connects steam source of the gas by a valve; Described tank base is extended downward along inwall after each described vapour pipe runs through the sidewall of described tank body; Be fastenedly connected a vapor pipe on the top of described tank body, described vapor pipe is provided with a pressure relief valve.
2. a kind of sludge hot hydrolysis device as claimed in claim 1, is characterized in that: described tank body top is provided with a pressure transmitter, described tank wall is provided with two or three temperature sensors.
3. a kind of sludge hot hydrolysis device as claimed in claim 1, is characterized in that: the quantity of described vapour pipe is no less than five.
4. adopt the sludge hot method for hydrolysis that device is implemented as described in any one of Claims 1-4, comprise the following steps:
1) add sludge material by the opening for feed of tank body, then cover top cover and make it seal;
2) open steam source of the gas, then open the valve on one of them vapour pipe, pass into steam, when passing into steam after 10 ~ 15 minutes, valve-off stops air inlet;
3) open pressure relief valve, the freezing air in tank body is discharged;
4) again open described step 2) in valve on the vapour pipe that uses, in tank body, pass into steam, continue 10 ~ 15 minutes, valve-off afterwards;
5) sequentially pass through remaining vapour pipe on tank wall and pass into steam in tank body, aeration time is each time 10 ~ 15 minutes, until the temperature of sludge material reaches more than 140 DEG C and tank body internal pressure reaches more than 0.4Mpa;
6) 40 ~ 60 minutes are maintained under the state that pressure is in 0.4 ~ 0.8MPa, temperature is in 140 ~ 170 DEG C in tank body;
7) close all enter vapour pipe, open pressure relief valve and carry out pressure release, exhaust steam discharge tank body;
8) treat that tank body internal pressure is down to 0.1 ~ 0.03Mpa, open discharge gate, utilize the gravity of the overbottom pressure in tank body and sludge material to complete 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 |
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| CN201510315891.4A CN104891766B (en) | 2015-06-10 | 2015-06-10 | Sludge pyrohydrolysis device and method |
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| CN104891766A true CN104891766A (en) | 2015-09-09 |
| CN104891766B 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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Cited By (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 |
Cited By (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 |
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| Publication number | Publication date |
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| CN104891766B (en) | 2017-01-25 |
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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 |