CN208471875U - A kind of circular pipe type desiccation machine - Google Patents
A kind of circular pipe type desiccation machine Download PDFInfo
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- CN208471875U CN208471875U CN201820944981.9U CN201820944981U CN208471875U CN 208471875 U CN208471875 U CN 208471875U CN 201820944981 U CN201820944981 U CN 201820944981U CN 208471875 U CN208471875 U CN 208471875U
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- sludge
- desiccation
- thermal medium
- endless tube
- round tube
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Abstract
The utility model discloses a kind of circular pipe type desiccation machines, including transmission mechanism, machine rack, jacket type to heat casing, hot axis round tube heating dish group；The utility model passes through the multi-turn heat exchange heating and drying sludge of endless tube, it propeller and is stepped back under the opposite effect of scraper plate between heat exchange endless tube, dry mud and wet mud obtain back-mixing and strengthen stirring, make sludge drying quickly through stagnant zone, reduce leading portion sludge water content, the sludge quantity for improving rear end heating surface is integrally improved the desiccation ability of the per unit heating surface of desiccation machine, reduces equipment manufacturing cost；The utility model can be widely applied to the heat drying in various sludge treatment field, such as municipal sludge, industrial sludge, oil field mud, can also carry out thermal desorption and thermal decomposition to some solid wastes.
Description
Technical field
The invention belongs to the technical fields of sludge heat drying, solid waste thermal desorption and thermal decomposition, and in particular to a kind of circular pipe type
Desiccation machine.
Background technique
In fields such as the energy, chemical industry, petroleum, textile printing and dyeing, papermaking, municipal administrations, it will usually it is higher to generate a large amount of water capacities
Sludge.
The ingredient of sludge is extremely complex, except containing in addition to a large amount of moisture, also contains a large amount of organic matter, difficult to degrade organic
The ingredients such as object, various trace elements, pathogenic microorganism and parasitic ovum, heavy metal, and with stench.
The method of disposal of sludge has landfill, agricultural, burning etc. at present.Sludge incineration has minimizing, innoxious, recycling
Remarkable advantage.All germs are killed during the burning process, and heavy metal stabilizing improves, and toxic organic compound is oxidized point
Solution, the volume of the remaining ash of sludge is far smaller than the volume of sludge after mechanical dehydration after burning, about its 1/10th.It is alive at present
Sludge incineration is all widely used within the scope of boundary, and will be further increased in the ratio of the following sludge treatment.
For the more method for sludge treatment of foreign applications to burn after first desiccation, the current type of the anhydration system of sludge is numerous at present
More, investment production capacity and operating cost, whether generating secondary pollution etc., techniques difference is larger.In such a way that thermal medium is contacted with sludge
It can be divided into: Direct Contact Heating formula, mediate contact heated type, non-contact heated type, dual heating type etc..
Mediate contact heated type is to heat wall with thermal medium (such as steam, conduction oil, fused salt), to keep wall another
The wet mud of side is heated, moisture evaporates, and belongs to conduction heat transfer mode.Mediate contact heated type is dry, advantage be thermal medium not
It is directly contacted with sludge, but wet mud is contacted the heat to by heat exchange partition, evaporate the moisture in sludge, heat carrier is not
It will receive the pollution of sludge, the dry tail gas amount very little generated, the dry thermal efficiency is higher, and tail gas deodorization is easily handled.
According to sludge water content how much, sludge drying generally undergoes mushy zone, stagnant zone, blocky area, granulomere several
Process, then sludge obtains desiccation moisture and gradually decreases.Wider mediate contact heated type desiccation machine is applied at present are as follows: groomed oar
Leaf desiccation machine and disk desiccation machine.The sludge drying of both desiccation machines is all indirect by thermal medium from the inlet side of desiccation machine
Heat and be gradually moved into discharge end, sludge under the scraping blade and screw blade of heating surface surrounding push inside the desiccation machine can only before
Into back-mixing cannot be retreated to feed end.The sludge retention that this has resulted in both desiccation machines is long in the stagnant zone time, dirty at this time
Mud is easily adhered to not easily to fall off on heating surface, and causing sludge thermal resistance to increase desiccation rate reduces, although broken by scraper scraper plate
Broken sludge, but the viscous problem of sludge cannot be all solved very well.
In addition, sludge volume largely reduces, the rear end heating surface of both desiccation machines with the progress that sludge drying is dehydrated
The sludge quantity that year-on-year front end heating surface touches subtracts greatly, and causing rear end heating surface can only be bottom part heating sludge, heating surface
Effective heat utilization is not obtained, is equivalent to and is wasted part heating surface.
In addition, the axial heating surface use of both desiccation machines master is all plank frame, this structure bearing capacity
Difference, so can only generally control highest saturation vapour pressure is 0.2~0.8MPa when as used steam desiccation, this corresponding limitation
The temperature of heating steam improves, and is unfavorable for improving the desiccation rate of heat transfer of unit area.
It is removed in addition, both desiccation machine desiccation exhaust gas used at present just carry out whirlwind after connecting pipe leaves desiccation machine
Dirt, this causes desiccation exhaust gas to block connecting pipe with a large amount of dust, and the remoter distance the more serious, and collected outside dirt also results in system
It is complicated.
Summary of the invention
In order to overcome current technology there are the shortcomings that, the object of the present invention is to provide a kind of circular pipe type desiccation machines.
To achieve the above object, the present invention takes following technical scheme:
A kind of circular pipe type desiccation machine, including transmission mechanism, machine rack, jacket type heat casing, hot axis round tube heating dish
Group；
The jacket type heating casing is equipped with collet thermal medium inlet, collet thermal medium outlet, sludge discharge hole；
The jacket type heating casing top is connected with collection chamber, and collection chamber is equipped with sludge inlet, sewage sludge feed
Dispersion machine, carrier gas inlet, desiccation exhaust gas cyclone dust collectors, desiccation waste gas outlet；
The hot axis round tube heating dish group includes import spindle nose, outlet spindle nose, thermal medium inlet rotary joint, thermal medium
Export several round tube heating dish of rotary joint, hollow hot axis and its surrounding distribution；The round tube heating dish right angle setting
On hollow hot axis, two neighboring round tube heating dish is in 180 ° of installations of rotation；
The round tube heating dish includes import endless tube header, discharge ring header, several circles heat exchange endless tube, and exchange heat endless tube
One is collected and is connected to import endless tube header, and heat exchange endless tube other end, which is collected, is connected to discharge ring header；The endless tube that exchanges heat is outermost
Circle round tube is surrounded by several uniformly distributed propellers, and round tube is surrounded by several uniformly distributed stepping back and scrapes inside heat exchange endless tube
Plate；Several reinforcing supports are connected between heat exchange endless tube and between import endless tube header, discharge ring header；The discharge ring
Header is connected on hollow hot axis, and one end of hollow hot axis is connected to outlet spindle nose, and outlet spindle nose is connected to thermal medium outlet
Rotary joint；The import endless tube header is connected on the thermal medium inlet general pipeline inside hollow hot axis, and thermal medium inlet is total
Pipe is connected to import spindle nose, and import spindle nose is connected to thermal medium inlet rotary joint.
Compared with prior art, the present invention has the advantage that
Due to using internal round tube heating dish, compressive resistance is improved, is easy to use the heating of mesohigh steam, and then improve
The desiccation ability of the per unit heating surface of desiccation machine, reduces equipment manufacturing cost.
Due to having gap between every round tube of multi-turn heat exchange endless tube, in propeller and acting on relatively for scraper plate is stepped back
Under, dry mud and wet mud obtain back-mixing and strengthen stirring, make sludge drying quickly through stagnant zone, reduce leading portion sludge water content, mention
Sludge quantity around high rear end heating surface, is integrally improved the desiccation ability of the per unit heating surface of desiccation machine, reduces equipment
Cost.
Desiccation machine sends the cyclone dust collectors that desiccation exhaust gas passes through collection chamber top in advance outside, and the dust removed falls within desiccation machine
It is interior, reduce the blocking of subsequent pipeline.
It the composite can be widely applied to the heat drying in various sludge treatment field, such as municipal sludge, industrial sludge, oil
Field greasy filth can also carry out thermal desorption and thermal decomposition to some solid wastes.
Detailed description of the invention
Fig. 1 is overall structure main view of the invention
Fig. 2 is overall structure left view of the invention
Fig. 3 is hot axis round tube heating dish group main view of the invention
Fig. 4 is hot axis round tube heating dish group left view enlarged drawing of the invention
In figure:
Transmission mechanism 1, machine rack 2, jacket type heat casing 3, hot axis round tube heating dish group 4, collet thermal medium inlet
5, collet thermal medium outlet 6, collection chamber 7, sludge inlet 8, sewage sludge feed dispersion machine 9, carrier gas inlet 10, desiccation exhaust gas whirlwind
Deduster 11, desiccation waste gas outlet 12, hollow hot axis 13, round tube heating dish 14, import spindle nose 15, outlet spindle nose 16, thermal medium
Import rotary joint 17, thermal medium outlet rotary joint 18, heat exchange endless tube 19, import endless tube header 20, discharge ring header 21,
Support 22, propeller 23 are reinforced, scraper plate 24, thermal medium inlet general pipeline 25, sludge discharge hole 26 are stepped back.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
A kind of circular pipe type desiccation machine, including transmission mechanism 1, machine rack 2, jacket type heating casing 3, the heating of hot axis round tube
Disk group 4；
The jacket type heating casing 3 is equipped with collet thermal medium inlet 5, collet thermal medium outlet 6, sludge discharge hole
26；
The described jacket type heating 3 top of casing is connected with collection chamber 7, collection chamber be equipped with sludge inlet 8, sludge into
Expect dispersion machine 9, carrier gas inlet 10, desiccation exhaust gas cyclone dust collectors 11, desiccation waste gas outlet 12；
The hot axis round tube heating dish group 4 includes import spindle nose 15, outlet spindle nose 16, thermal medium inlet rotary joint
17, several round tube heating dish 14 of thermal medium outlet rotary joint 18, hollow hot axis 13 and its surrounding distribution；The round tube
Heating dish 14 is vertically mounted on hollow hot axis 13, and two neighboring round tube heating dish 14 is in 180 ° of installations of rotation；
The round tube heating dish 14 includes import endless tube header 20, discharge ring header 21, several circles heat exchange endless tube 19,
Heat exchange endless tube 19 1, which collects, is connected to import endless tube header 20, and heat exchange endless tube other end, which is collected, is connected to discharge ring header
21；Heat exchange 19 outmost turns round tube of endless tube is surrounded by several uniformly distributed propellers 23, in heat exchange 19 inside round tube surrounding of endless tube
Uniformly distributed scraper plate 24 is stepped back equipped with several；Connect between heat exchange endless tube 19 and between import endless tube header 19, discharge ring header 20
It is connected to several reinforcing supports 22；The discharge ring header 21 is connected on hollow hot axis 13, and one end of hollow hot axis 13 connects
It is connected to outlet spindle nose 16, outlet spindle nose 16 is connected to thermal medium outlet rotary joint 18；The import endless tube header 20 connects
On thermal medium inlet general pipeline 25 inside to hollow hot axis 13, thermal medium inlet general pipeline 25 is connected to import spindle nose 15, import axis
First 15 are connected to thermal medium inlet rotary joint 17.
The circular pipe type desiccation machine sludge drying course of work is such that
Thermal medium (conduction oil or steam, fused salt etc.) a-road-through crosses the entrance of thermal medium inlet rotary joint 17, by import
Spindle nose 15 enters the thermal medium inlet general pipeline 25 in hollow hot axis 13, then enters side by side each by thermal medium inlet general pipeline 25
Import endless tube header 20 in the round tube heating dish 14 of a heating sludge, using several circles heat exchange endless tube of round tube heating dish 14
19 (are in Fig. 4 four circles heat exchange endless tube 19) are collected into discharge ring header 21, then thermal medium enter in hollow hot axis 13 and
Annular space space between thermal medium inlet general pipeline 25 is flowed out using outlet spindle nose 16, thermal medium outlet rotary joint 18, and heat is situated between
Matter delivers heat to sludge drying by the outer surface of each round tube heating dish 14 and hollow hot axis 13 and uses.
Thermal medium (conduction oil or steam, fused salt etc.) another way is added by collet thermal medium inlet 5 into jacket type simultaneously
Heat engine shell 3 provides heat by the inner surface of collet and uses to sludge drying, and the thermal medium after heat exchange is gone out by collet thermal medium
Mouth 6 flows out.
Wet mud is transported to sludge inlet 8, after the dispersion of sewage sludge feed dispersion machine 9, is sent into the jacket type of desiccation machine
The hot axis round tube heating dish group 4 heated in casing 3 carries out desiccation.
Transmission mechanism 1 drives hot axis round tube heating dish group 4 to rotate, and wet mud falls into the round tube heating dish of feed end first
14, the sludge agitation mixing more dry by the part for stepping back the return of scraper plate 24 with sludge discharge end, then gradually passes through every herein
The sludge discharge hole 26 of pusher to discharge end is moved in the heating and propeller 23 of organizing round tube heating dish 14, so that dewatered sludge is arranged
Desiccation machine out.
Due to having the gap between heat exchange endless tube 19, the propeller 23 of every group in this way round tube heating dish 14 and scraper plate 24 is stepped back
It carries out small-scale back-mixing, the propeller 23 of whole round tube heating dish 14 and steps back scraper plate 24 and carry out big back-mixing, be equivalent to and send
The semi-dry sludge that the wet mud and part entered returns is stirred, and reduces the viscosity of wet mud, keeps sludge drying quick
It is detached from stagnant zone, the combination of sludge and heat-transfer surface is enhanced and falls off, reaches the automatically cleaning anti-stick effect of heat-transfer surface.
Sludge gap between heat exchange endless tube 19, which promotes, to be stepped back, and the material position of uniform feed end and discharge end is poor, improves
The material position of discharge end, takes full advantage of the heating and drying sludge of heat-transfer surface of desiccation machine discharge end, and allows the sludge conduct of discharge end
Heat is taken back feed end blending desiccation wet mud by heat carrier returning charge.
Collection chamber 7 is sent into carrier gas by carrier gas inlet 10, steam that sludge drying generates, fixed gas is with carrier gas band
It walks after entering 11 dedusting of desiccation exhaust gas cyclone dust collectors, is discharged through desiccation waste gas outlet 12, desiccation exhaust gas goes to wash in next step cold
Solidifying separating treatment.Carrier gas can use flue gas, nitrogen, carbon dioxide gas etc..
Embodiment one
It uses conduction oil for thermal medium, using flue gas as carrier gas, desiccation is carried out to municipal sludge, the municipal administration into desiccation machine is dirty
Mud water content is 80%, and moisture content is 35% after disk desiccation machine desiccation of the invention.
Embodiment two
It uses steam for thermal medium, using flue gas as carrier gas, desiccation is carried out to certain industrial sludge, into the wet mud of desiccation machine
Water content is 70%, and moisture content is 25% after disk desiccation machine desiccation of the invention.
Embodiment three
Use conduction oil for thermal medium, nitrogen buffer gas carries out desiccation to oil field mud, into the oil field of desiccation machine oil
Mud water content is 70%, oil content 10%, and greasy filth moisture content is 35% after disk desiccation machine desiccation of the invention, oil-containing
Rate is 3%.
The various embodiments described above are only the preferred embodiment of the present invention, in the art, all to be based on skill of the present invention
Changes and improvements in art scheme should not exclude except protection scope of the present invention.
Claims (4)
1. a kind of circular pipe type desiccation machine, it is characterized in that: including transmission mechanism, machine rack, jacket type heating casing, hot axis round tube
Heating dish group；The jacket type heating casing is equipped with collet thermal medium inlet, collet thermal medium outlet, sludge discharge hole；Institute
The jacket type heating casing top stated is connected with collection chamber, and collection chamber is equipped with sludge inlet, sewage sludge feed dispersion machine, carrier gas
Entrance, desiccation exhaust gas cyclone dust collectors, desiccation waste gas outlet.
2. a kind of circular pipe type desiccation machine as described in claim 1, it is characterised in that: the hot axis round tube heating dish group includes
Import spindle nose, outlet spindle nose, thermal medium inlet rotary joint, thermal medium outlet rotary joint, hollow hot axis and its surrounding are distributed
Several round tube heating dish.
3. a kind of circular pipe type desiccation machine as claimed in claim 2, it is characterised in that: the round tube heating dish includes import ring
Header, discharge ring header, several circles heat exchange endless tube, heat exchange endless tube one, which collects, is connected to import endless tube header, and exchange heat ring
Pipe other end, which is collected, is connected to discharge ring header；Heat exchange endless tube outmost turns round tube is surrounded by several uniformly distributed propellers,
Round tube, which is surrounded by, inside heat exchange endless tube several uniformly distributed steps back scraper plate；Exchange heat endless tube between and import endless tube header, outlet
Several reinforcing supports are connected between endless tube header；The discharge ring header is connected on hollow hot axis, hollow hot axis
One end is connected to outlet spindle nose, and outlet spindle nose is connected to thermal medium outlet rotary joint；The import endless tube header is connected to
On thermal medium inlet general pipeline inside hollow hot axis, thermal medium inlet general pipeline is connected to import spindle nose, and import spindle nose is connected to heat
Medium entrance rotary joint.
4. a kind of circular pipe type desiccation machine as claimed in claim 2, it is characterised in that: the round tube heating dish is vertically mounted on
On hollow hot axis, two neighboring round tube heating dish is in 180 ° of installations of rotation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820944981.9U CN208471875U (en) | 2018-06-19 | 2018-06-19 | A kind of circular pipe type desiccation machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820944981.9U CN208471875U (en) | 2018-06-19 | 2018-06-19 | A kind of circular pipe type desiccation machine |
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| CN208471875U true CN208471875U (en) | 2019-02-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108516661A (en) * | 2018-06-19 | 2018-09-11 | 临沂三丁能源有限公司 | A kind of circular pipe type desiccation machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108516661A (en) * | 2018-06-19 | 2018-09-11 | 临沂三丁能源有限公司 | A kind of circular pipe type desiccation machine |
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