CN103482839A - Belt type sludge dryer and method for drying sludge by using boiler waste heat - Google Patents
Belt type sludge dryer and method for drying sludge by using boiler waste heat Download PDFInfo
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- CN103482839A CN103482839A CN201210195995.2A CN201210195995A CN103482839A CN 103482839 A CN103482839 A CN 103482839A CN 201210195995 A CN201210195995 A CN 201210195995A CN 103482839 A CN103482839 A CN 103482839A
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Abstract
The present invention discloses a belt type sludge dryer and a method for drying sludge by using boiler waste heat, wherein a temperature of boiler flue gas is completely utilized to heat sludge without new energy consumption, such that the dried sludge meets boiler combustion requirements. The belt type sludge dryer comprises a drying chamber, wherein the front wall body of the drying chamber is provided with air inlets, the rear wall of the drying chamber is provided with an air outlet, a plurality of drying beds are arranged between the left wall body and the right wall body in the drying chamber in an upper-lower parallel alignment manner, the left wall body is provided with a material inlet, a conveying belt is connected with the uppermost drying bed through the material inlet, the drying bed comprises a transmission roller, a drive roller and a mesh belt arranged between the transmission roller and the drive roller, the drive roller is connected with a transmission system, rotation directions of the upper layer mesh belt and the adjacent lower layer mesh belt are the same, lengths of the adjacent layer mesh belts are set in a staggered manner, and a material on the upper layer mesh belt sequentially falls onto the adjacent lower layer mesh belt, and finally is conveyed out of the drying chamber through a material outlet of the left wall body or the right wall body.
Description
The invention belongs to the technology of paper industry environmental protection aspect, is that the mud to producing in sewage treatment process carries out dry method specifically.
Background technology
Sludge incineration is a main sludge disposal technology, select that rational mud is concentrated, dewatering, suitable moisture percentage in sewage sludge, contribute to sludge incineration to process and reach best effect, both alleviate the detrimentally affect that paper mill sludge produces environment, saved a large amount of energy consumption technology for papermaking enterprise again.Enterprise's drying sludge adopts rotary kiln to carry out drying mostly now, and this equipment need be used the steam boosting, produces again new energy consumption.
Summary of the invention
Purpose of the present invention just is to provide a kind of belt-type sludge drier and utilizes boiler afterheat to carry out dry method to mud, take full advantage of the temperature of boiler smoke, do not need new energy consumption to be heated mud, thereby make dried mud reach the needs of boiler combustion.
Technical scheme of the present invention is as follows:
A kind of novel band-type sludge drying machine, comprise kiln, kiln is by front body of wall, back wall, left body of wall, right body of wall and top board form, be provided with air intake vent on the front body of wall of kiln, be provided with air outlet on the rear wall of kiln, left in kiln, a plurality of drying beds that are arranged in parallel up and down are set between right body of wall, be provided with feeding mouth on left body of wall, conveying belt is connected with the superiors drying beds by feeding mouth, drying bed is by live roll, drive roll and be arranged on live roll and drive roll between guipure form, before the two ends of live roll and the two ends of drive roll all are arranged on, on back wall, drive roll is connected with transmission system, the turning direction of upper strata guipure and adjacent lower floor guipure in opposite directions, the length of adjacent layers guipure is crisscross arranged, material on the guipure of upper strata is fallen on adjacent lower floor guipure successively, finally by the discharge port of left body of wall or right body of wall, send kiln.
Above-mentioned novel band-type sludge drying machine, described live roll is bridle rolls, is provided with deflector roll below guipure, the two ends of deflector roll are arranged on forward and backward body of wall.
Above-mentioned novel band-type sludge drying machine, the guipure on conveying belt and the superiors' drying bed forms one and carries zone circle, shares one group of transmission system, and the following guipure of the second layer and the second layer shares one group of transmission system.
Above-mentioned novel band-type sludge drying machine, also be provided with the cloth brattice in the front body of wall of described kiln, evenly is provided with wind distributing hole on the cloth brattice.
Above-mentioned novel band-type sludge drying machine, described blast inlet has two, is arranged on front body of wall; Air outlet has one.
Above-mentioned novel band-type sludge drying machine is provided with manhole on front body of wall and back wall.
A kind of boiler emission flue dust waste heat that utilizes carries out dry method to sewage disposal mud, carry out drying treatment with novel band-type sludge drying machine, its step is as follows: the mud of a. sewage disposal passes through extrusion machine after pressure filter again, extrusion machine mud out by conveying belt to kiln and be evenly distributed on kiln the superiors guipure; B. the boiler emission flue gas is passed into the blast inlet of kiln, and flue gas is distributed on guipure by the cloth brattice after entering kiln equably; C. have the many guipures that distribute up and down in kiln, and adjacent upper guipure and lower guipure switched in opposite, the guipure that mud is rotated by the superiors is brought kiln into, while arriving the later roller of guipure, mud is fallen on second layer guipure, the same second layer is fallen the 3rd layer ... .. finally fall on last one deck guipure, mud in the end reaches the requirement mass dryness fraction and is sent kiln on one deck guipure.
The above-mentioned boiler emission flue dust waste heat that utilizes carries out dry method to sewage disposal mud, after the pie that described step a extrusion machine is pressed into mud 2-5mm is brought kiln into by conveying belt, is distributed to equably on the superiors' guipure.
The above-mentioned boiler emission flue dust waste heat that utilizes carries out dry method to sewage disposal mud, and the flue gas after utilizing enters former boiler flue gas treatment system by air outlet.
Adopt technique scheme, the present invention has following advantage: the mud of process pressure filter is transferred machine and delivers on extrusion machine, and extrusion machine further is distributed evenly on guipure and is transported to kiln after extruding mud; The flue gas of boiler emission enters kiln by two air intake vents, and the flue gas that the cloth brattice will enter kiln is distributed equably, has guaranteed that the mud on the guipure fully contacts with flue gas, thereby has improved drying efficiency greatly; Flue gas after utilizing enters former boiler flue gas treatment system by air outlet.Extrusion machine of the present invention can be evenly distributed in sludge dewatering on guipure mud again, has embodied the several functions of extrusion machine; On the other hand, the present invention can utilize the useless flue gas of boiler emission to carry out drying to mud, can reduce again the temperature of flue gas, reduces the hot driving effect of flue gas to atmosphere, and then plays environmental-protection function.And simplified construction of the present invention, do not need new energy consumption to be heated mud, just can reach water content 10%---30% mud reaches the needs of boiler combustion; The extruding function is pressed into mud the pie of 2-5mm and can be distributed to equably on guipure, effectively raises drying efficiency.
The accompanying drawing explanation
Fig. 1 is the structural representation of novel band-type sludge drying machine.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the local enlarged diagram of cloth brattice.
Embodiment
As Fig. 1, a kind of novel band-type sludge drying machine shown in Fig. 2 and Fig. 3, comprise kiln 1, kiln is by front body of wall 17, back wall 10, left body of wall 11, right body of wall 12 and top board 13 form, be provided with two air intake vents 7 and two manholes 8 on the front body of wall 17 of kiln, be provided with air outlet 6 and manhole 8 on the rear wall of kiln, left in kiln, a plurality of drying beds that are arranged in parallel up and down are set between right body of wall, be provided with feeding mouth on left body of wall, conveying belt 14 is connected with the superiors drying beds by feeding mouth, drying bed is by live roll 2, drive roll 16 and be arranged on live roll and drive roll between guipure 5 form, be provided with deflector roll 3 below guipure 5, the two ends of live roll, before the two ends of drive roll and the two ends of deflector roll all are arranged on, on back wall, and all can rotate, drive roll 16 is connected with transmission system, the turning direction of upper strata guipure and adjacent lower floor guipure in opposite directions, the length of adjacent layers guipure is crisscross arranged, material on the guipure of upper strata is fallen on adjacent lower floor guipure successively, finally by the discharge port of left body of wall or right body of wall, send kiln, above-mentioned novel band-type sludge drying machine, guipure on conveying belt and the superiors' drying bed forms one and carries zone circle, share one group of transmission system, the following guipure of the second layer and the second layer shares one group of transmission system 18.Also be provided with cloth brattice 9 in the front body of wall of kiln, evenly be provided with wind distributing hole 15 on the cloth brattice.
Live roll 2 of the present invention is bridle rollss.
Drying bed of the present invention is by five layers.
A kind of boiler emission flue dust waste heat that utilizes carries out dry method to sewage disposal mud, carry out drying treatment with novel band-type sludge drying machine, its step is as follows: the sludge water content content of a. sewage disposal reaches 80%, after pressure filter, moisture drops to 40%, after extrusion machine, moisture drops to 35% again, extrusion machine 4 mud out by conveying belt to kiln and be evenly distributed on kiln the superiors guipure; B. the boiler emission flue gas is passed into the blast inlet of kiln, and flue gas is distributed on guipure by the cloth brattice after entering kiln equably; C. have the many guipures that distribute up and down in kiln, and adjacent upper guipure and lower guipure switched in opposite, the guipure that mud is rotated by the superiors is brought kiln into, while arriving the later roller of guipure, mud is fallen on second layer guipure, the same second layer is fallen the 3rd layer ... .. finally fall on last one deck guipure, mud in the end reaches the requirement mass dryness fraction and is sent kiln on one deck guipure.
The above-mentioned boiler emission flue dust waste heat that utilizes carries out dry method to sewage disposal mud, after the pie that described step a extrusion machine is pressed into mud 2-5mm is brought kiln into by conveying belt, is distributed to equably on the superiors' guipure.
The above-mentioned boiler emission flue dust waste heat that utilizes carries out dry method to sewage disposal mud, and the flue gas after utilizing enters former boiler flue gas treatment system by air outlet.
Claims (9)
1. a novel band-type sludge drying machine, it is characterized in that: comprise kiln, kiln is by front body of wall, back wall, left body of wall, right body of wall and top board form, be provided with air intake vent on the front body of wall of kiln, be provided with air outlet on the rear wall of kiln, left in kiln, a plurality of drying beds that are arranged in parallel up and down are set between right body of wall, be provided with feeding mouth on left body of wall, conveying belt is connected with the superiors drying beds by feeding mouth, drying bed is by live roll, drive roll and be arranged on live roll and drive roll between guipure form, before the two ends of live roll and the two ends of drive roll all are arranged on, on back wall, drive roll is connected with transmission system, the turning direction of upper strata guipure and adjacent lower floor guipure in opposite directions, the length of adjacent layers guipure is crisscross arranged, material on the guipure of upper strata is fallen on adjacent lower floor guipure successively, finally by the discharge port of left body of wall or right body of wall, send kiln.
2. novel band-type sludge drying machine according to claim 1, it is characterized in that: described live roll is bridle rolls, is provided with deflector roll below guipure, the two ends of deflector roll are arranged on forward and backward body of wall.
3. novel band-type sludge drying machine according to claim 1 and 2, is characterized in that: the guipure formation one conveying zone circle on conveying belt and the superiors' drying bed, shared one group of transmission system, the shared one group of transmission system of guipure that the second layer and the second layer are following.
4. novel band-type sludge drying machine according to claim 3, is characterized in that: also be provided with the cloth brattice in the front body of wall of described kiln, evenly be provided with wind distributing hole on the cloth brattice.
5. novel band-type sludge drying machine according to claim 4, it is characterized in that: described blast inlet has two, is arranged on front body of wall; Air outlet has one.
6. novel band-type sludge drying machine according to claim 5, is characterized in that: on front body of wall and back wall, be provided with manhole.
7. one kind is utilized boiler emission flue dust waste heat to carry out dry method to sewage disposal mud, it is characterized in that: with novel band-type sludge drying machine, carry out drying treatment, its step is as follows: the mud of a. sewage disposal is through pressure filter, pass through again extrusion machine, extrusion machine mud out by conveying belt to kiln and be evenly distributed on kiln the superiors guipure; B. the boiler emission flue gas is passed into the blast inlet of kiln, and flue gas is distributed on guipure by the cloth brattice after entering kiln equably; C. have the many guipures that distribute up and down in kiln, and adjacent upper guipure and lower guipure switched in opposite, the guipure that mud is rotated by the superiors is brought kiln into, while arriving the later roller of guipure, mud is fallen on second layer guipure, the same second layer is fallen the 3rd layer ... .. finally fall on last one deck guipure, mud in the end reaches the requirement mass dryness fraction and is sent kiln on one deck guipure.
8. the boiler emission flue dust waste heat that utilizes according to claim 7 carries out dry method to sewage disposal mud, it is characterized in that: after the pie that described step a extrusion machine is pressed into mud 2-5mm is brought kiln into by conveying belt, be distributed to equably on the superiors' guipure.
9. the boiler emission flue dust waste heat that utilizes according to claim 8 carries out dry method to sewage disposal mud, it is characterized in that: the flue gas after utilizing enters former boiler flue gas treatment system by air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210195995.2A CN103482839A (en) | 2012-06-14 | 2012-06-14 | Belt type sludge dryer and method for drying sludge by using boiler waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210195995.2A CN103482839A (en) | 2012-06-14 | 2012-06-14 | Belt type sludge dryer and method for drying sludge by using boiler waste heat |
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| CN103482839A true CN103482839A (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210195995.2A Pending CN103482839A (en) | 2012-06-14 | 2012-06-14 | Belt type sludge dryer and method for drying sludge by using boiler waste heat |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366913A (en) * | 2015-12-07 | 2016-03-02 | 江苏联冠机械有限公司 | Efficient sludge dewatering and drying treatment system |
| CN106045272A (en) * | 2016-07-20 | 2016-10-26 | 广州薪光合环保技术有限公司 | Vertical moving bed drying system and method |
| CN110981154A (en) * | 2019-12-19 | 2020-04-10 | 西安交通大学 | Sludge drying device and drying method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004046629A1 (en) * | 2002-11-15 | 2004-06-03 | Klein Abwasser- Und Schlammtechnik Gmbh | Method for convection drying |
| CN101993185A (en) * | 2010-11-17 | 2011-03-30 | 北京机电院高技术股份有限公司 | Sludge band type drier and drying processing method |
| CN201981106U (en) * | 2010-10-29 | 2011-09-21 | 华南理工大学 | Complete set of equipment for step-by-step sludge drying through hot tail gas of boiler |
| CN202912812U (en) * | 2012-06-14 | 2013-05-01 | 河南江河纸业股份有限公司 | Belt sludge dryer utilizing waste heat of boiler to dry sludge |
-
2012
- 2012-06-14 CN CN201210195995.2A patent/CN103482839A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004046629A1 (en) * | 2002-11-15 | 2004-06-03 | Klein Abwasser- Und Schlammtechnik Gmbh | Method for convection drying |
| CN201981106U (en) * | 2010-10-29 | 2011-09-21 | 华南理工大学 | Complete set of equipment for step-by-step sludge drying through hot tail gas of boiler |
| CN101993185A (en) * | 2010-11-17 | 2011-03-30 | 北京机电院高技术股份有限公司 | Sludge band type drier and drying processing method |
| CN202912812U (en) * | 2012-06-14 | 2013-05-01 | 河南江河纸业股份有限公司 | Belt sludge dryer utilizing waste heat of boiler to dry sludge |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366913A (en) * | 2015-12-07 | 2016-03-02 | 江苏联冠机械有限公司 | Efficient sludge dewatering and drying treatment system |
| CN105366913B (en) * | 2015-12-07 | 2018-01-09 | 江苏联冠机械有限公司 | High-effective sludge dehydration drying process system |
| CN106045272A (en) * | 2016-07-20 | 2016-10-26 | 广州薪光合环保技术有限公司 | Vertical moving bed drying system and method |
| CN110981154A (en) * | 2019-12-19 | 2020-04-10 | 西安交通大学 | Sludge drying device and drying method |
| CN110981154B (en) * | 2019-12-19 | 2021-06-01 | 西安交通大学 | Sludge drying device and drying method |
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Application publication date: 20140101 |