CN208901835U - Three-pass rotary drum drying equipment - Google Patents
Three-pass rotary drum drying equipment Download PDFInfo
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- CN208901835U CN208901835U CN201821458822.4U CN201821458822U CN208901835U CN 208901835 U CN208901835 U CN 208901835U CN 201821458822 U CN201821458822 U CN 201821458822U CN 208901835 U CN208901835 U CN 208901835U
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- drying
- solid separation
- rotary drum
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Abstract
The utility model discloses a kind of three-pass rotary drum drying equipments, belong to drying equipment technical field, aim to solve the problem that the problem that drying equipment heat conduction efficiency is low, energy consumption is high in the prior art, its key points of the technical solution are that feed unit including drying unit, for being passed through material and from hot-air to drying unit, the exhaust purification unit for being connected to the gas solid separation unit of drying unit discharge end and being connected to the outlet side of gas solid separation unit.Drying unit includes that the inner roller being coaxially arranged, middle roller and outer roller using the heating method of hot-air and material directly contact make material successively complete three backhaul drying processes in inner roller, middle roller and outer roller with hot-air.Heat exchanger effectiveness greatly is referred to, reduces the energy consumption of processing unit volume material, and quality efficient to the drying process of material is high.
Description
Technical field
The utility model relates to a kind of drying equipments, more specifically, it relates to a kind of three-pass rotary drum drying equipment.
Background technique
After crushing is selected, ore in sand form obtained can do the light bone of inorganic extruding for perlite, obsidian and rosin rock and ore
The raw material of material.But before being processed ore in sand form, need that ore in sand form is carried out primary drying processing, the mesh of drying process first
Be exactly to evaporate the constitution water contained inside surface free water and part sand body that sand body surface is paid, in order to subsequent
The expanding processing of workshop section.Another dry purpose is to remove the bentonite dust and tiny sand grains contained in sand, to reduce
The aborning freezing of a furnace phenomenon of following process and heat energy loss.
In the dry processing technology of traditional ore in sand form, all selection is dried using external heat monotubular rotary drying furnace substantially,
Heat source fuel has natural gas, coal gas and raw coal.As shown in Figure 1, it is as dried and is added using external heat monotubular rotary furnace
The conventional process flow of work, this technical process have many advantages, such as that equipment is simple, process is short, are convenient for manual operations.
But cylinder outer wall is heated by external heat source, then heat is occurred by the ore in sand form of inner wall of rotary drum and drums inside and is handed over
It changes with this heating method to ore in sand form heat drying, that there are heat exchanger effectiveness is low, heat transfer rate is slow, heating is uneven etc. asks
Topic increases energy consumption, causes dry sand mass uniformity poor, and certain bear can be also brought to the production of subsequent workshop section
Load, and influence final expanding processing production and lightweight aggregate product quality.Thus, a kind of low energy consumption, drying efficiency how to be researched and developed
High and good processing quality drying equipment is problem to be solved in the industry.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of dryings of three-pass rotary drum to set
Standby, with heat exchanger effectiveness height, low energy consumption for dry unit volume ore in sand form, drying efficiency is high and is conducive to improve finished product ore in sand form quality
Advantage.
To achieve the above object, the utility model provides following technical solution:
A kind of three-pass rotary drum drying equipment, including drying unit, for being passed through material and hot-air into drying unit
Feed unit, be connected to the gas solid separation unit of drying unit discharge end and be connected to the outlet side of gas solid separation unit
Exhaust purification unit；Wherein, the drying unit includes the inner roller being coaxially arranged, middle roller and outer roller；The outer roller
One end be connected to gas solid separation unit；There are openings for described inner roller one end, and the other end is from outer roller close to feed unit
One end is stretched out and is connected to feed unit；The middle drum sleeve is set to outside inner roller, and close to an end seal of gas solid separation unit
There are openings for the one end for closing close to feed unit；Pass through several between the lateral wall of the middle roller and the inner sidewall of outer roller
Column is fixedly connected；The drying unit further includes the mounting rack for being used to support outer roller, and for driving outer roller pacifying
Shelve the driving assembly of circumferential rotation.
By using above-mentioned technical proposal, at least have the advantages that the three-pass rotary drum drying of one, the utility model is set
It is standby using hot mode heat drying in self-heat conserving, high temperature air directly be heated dried object and contact generation heat exchange, greatly mention
High heat exchanger effectiveness, efficiency of heating- utilization are higher by 40% 90% or more, than single-pass internal heat type rotary drying equipment, return than external-heat
60% or more will be higher by by turning drying equipment.Two, using hot mode heat drying in self-heat conserving, ore in sand form is with hot-air in drying unit
It is internal to be increased while improving heat exchange coefficient through the gas gross in drying unit along " S " type path flows,
These gases take the vapor being evaporated out of system in time, improve drying efficiency and rate of drying, improve drying
Treating capacity in the equipment unit time.Three, by increasing drums inside heat gas total amount, and certain artificial control can be with
By the dust and tiny sand body particle in raw material, system is separated and taken out of during heating in dry finished product ore in sand form,
Further improve the quality of finished product ore in sand form.
Further, the driving component includes the annular rack being coaxially set on the excircle side wall of outer roller and edge
The axis direction of outer roller is set to the shaft below outer roller；The biography engaged with annular rack is fixedly installed in the shaft
Moving gear and turns the tip of the axis and be connected with driving motor.
It by using above-mentioned technical proposal, opens driving motor and drives shaft rotation, and then pass through transmission gear and annular
The cooperation of rack gear is so that outer roller rotates.Roller rotates synchronously in driving when outer roller rotates, so that the mine inside drying unit
Sand is heated evenly, and improves heat conduction efficiency and rate of drying.
Further, the feed unit includes material feeding box, feed pipe and hot wind inlet pipe；The hot wind inlet pipe and inner roller
Coaxial arrangement, and it is respectively communicated with the two sidewalls opposite in material feeding box；The feed pipe is connected to the roof of material feeding box；The hot wind
Inlet pipe is provided with hot wind far from one end of material feeding box and burner occurs.
By using above-mentioned technical proposal, hot wind occurs burner and thermogenetic high temperature air is added to be passed directly into drying unit
Interior to be used as heat source, heat conduction efficiency is high, thermal energy effective rate of utilization is high, reduces the energy consumption of processing unit volume ore in sand form.
Further, the bottom end of the feed pipe is connected in material feeding box and deviates the axis of feed pipe to drying
The feeder pipe that cell orientation is obliquely installed.
By using above-mentioned technical proposal, it can directly be scattered in high-temperature hot air, make via the ore in sand form that feeder pipe imports
In drying process ore in sand form be heated evenly, conducive to reducing because of the collision between ore in sand form caused by ore in sand form is broken, generates dust, benefit
In the quality for promoting finished product ore in sand form.In addition, the feeder pipe being obliquely installed makes ore in sand form be not easy mine caused by the high temperature air because of flowing
Sand reverse flow in feed pipe.
Further, the top of the feed pipe is provided with feed hopper.
By using above-mentioned technical proposal, has the function of the convenient investment ore in sand form in drying unit.
Further, the gas solid separation unit includes the gas solid separation case being connected to the discharge end of outer roller, the gas
Gu being provided with dusty gas outlet on the roof of separator box, being communicated with the drainage conduit for dry ore in sand form to be discharged on bottom wall.
By using above-mentioned technical proposal, ore in sand form and high-temperature gas after drying unit is dried enter gas-solid point
From gas solid separation occurs after case, dry ore in sand form is discharged via drainage conduit, and dust-laden exhaust gas is exported via dusty gas and is discharged.
Further, the drainage conduit is obliquely installed to far from drying unit direction.
By using above-mentioned technical proposal, has the function of the ore in sand form for facilitating discharge dry.
Further, the exhaust purification unit includes bag filter and dedusting bleed air hose, the dedusting bleed wind
The inlet end of dusty gas exit, the other end and bag filter that pipe one end is connected on gas solid separation case connects.
By using above-mentioned technical proposal, after dust-laden exhaust gas enters bag filter via dedusting bleed air hose, in gas
Dust be removed, purification gas that treated is vented.By dedusting bleed air hose by bag filter and gas solid separation case
On dusty gas outlet so that high-temperature dusty gas enter bag filter before have the process to cool down in advance, drop
The low thermic load of bag filter.
In conclusion the utility model has the following beneficial effects:
1, for the three-pass rotary drum drying equipment of the utility model using hot mode heat drying in self-heat conserving, high temperature air is straight
Connect be heated dried object contact occur heat exchange, greatly improve heat exchanger effectiveness, efficiency of heating- utilization is 90% or more, than list
Logical internal heat type rotary drying equipment is higher by 40%, is higher by 60% or more than external-heating revolving drying equipment；
2, using hot mode heat drying in self-heat conserving, ore in sand form is with hot-air along " S " type route stream inside drying unit
It is dynamic, it while improving heat exchange coefficient, increases through the gas gross in drying unit, these gases will steam in time
The vapor issued takes system out of, improves drying efficiency and rate of drying, improves the mine in the drying equipment unit time
Sand treating capacity；
It 3, can also be by the ash in raw material by certain artificial control by the increase of drums inside heat gas total amount
Dirt and tiny sand body particle are separated during heating and are taken out of system with dry finished product ore in sand form, further improved
The quality of finished product ore in sand form.
Detailed description of the invention
Fig. 1 is traditional ore in sand form drying technology process figure in background technique；
Fig. 2 is the structural schematic diagram of three-pass rotary drum drying equipment in embodiment；
Fig. 3 is the cross-sectional view of three-pass rotary drum drying equipment in embodiment；
Fig. 4 is the enlarged drawing of part A in Fig. 2.
In figure: 1, material feeding box；11, feed pipe；111, feed hopper；112, feeder pipe；12, hot wind inlet pipe；121, hot wind is sent out
Raw burner；2, inner roller；3, middle roller；31, column；4, outer roller；41, annular rack；5, mounting rack；51, fixed ring；
52, pedestal；6, driving assembly；61, shaft；611, transmission gear；62, driving motor；7, gas solid separation case；71, dusty gas
Outlet；72, drainage conduit；8, dedusting bleed air hose；9, bag filter；91, net gas outlet.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment
A kind of three-pass rotary drum drying equipment comprising sequentially connected for being passed through the charging list of material and hot-air
Member, the drying unit for material to be dried, for carrying out gas solid separation unit to material and hot-air and for containing
The exhaust purification unit that dirt exhaust gas is purified.
Referring to Fig. 2 and Fig. 3, feed unit includes material feeding box 1, hot wind inlet pipe 12 and feed pipe 11.Hot wind inlet pipe 12 is connected to
In on the side wall of 1 side of material feeding box, and hot wind inlet pipe 12 is provided with hot wind far from the end of material feeding box 1 and combustion chamber occurs.Pass through
Combustion chamber, which occurs, for hot wind can produce a large amount of hot-airs, to provide heat source for drying equipment.
Referring to Fig. 3, the top of feed pipe 11 is provided with feed hopper 111, increases the opening on 11 top of feed pipe, has side
Just object to be dried enters the effect of drying equipment.In order to enable the substance to be dried entered in drying equipment to be scattered in hot sky as early as possible
In gas, the bottom end of feed pipe 11 is provided with inclined feeder pipe 112.To away from hot wind 121 direction of burner occurs for feeder pipe 112
Deviate the axis setting of feed pipe 11, the opening of bottom end is towards drying unit side.
Referring to Fig. 2 and Fig. 3, drying unit includes inner roller 2, middle roller 3, outer roller 4 and for driving outer roller 4 weeks
To the driving assembly 6 of rotation.Inner roller 2 is in hollow tubulose, and one end is connected to the side wall of material feeding box 1, and there are open for the other end
Mouthful.The axial direction of inner roller 2 and hot wind inlet pipe 12 it is axially coincident, and the two is symmetrically distributed in the two sides of material feeding box 1.Object to be dried
After material enters inner roller 2 via feed unit, as hot-air flows in inner roller 2 towards its open at one end, to complete the
The drying of one backhaul.
Referring to Fig. 3, the outer coaxial sleeve of inner roller 2 is equipped with the middle roller 3 of hollow tubular, and the internal diameter of middle roller 3 is greater than inner roller 2
Outer diameter.The one end of middle roller 3 far from material feeding box 1 is closed end and in coniform, and the other end is open end.In inner roller 2
Complete the dry material to be dried of the first backhaul with hot-air enter from the open end of inner roller 2 in roller 3, subsequent direction
The opening extreme direction of middle roller 3 flows, and the drying of the second backhaul is completed during this.
Referring to Fig. 2 and Fig. 3, the outer coaxial sleeve of middle roller 3 is equipped with outer roller 4, the main body of outer roller 4 be in it is hollow cylindric and
Internal diameter is greater than the outer diameter of middle roller 3, and both ends are tapered portion.Inner roller 2 is pierced by from the tapered portion of 4 one end of outer roller.Outer roller 4
The other end be connected to gas solid separation unit by pipeline.Relatively fixed setting between middle roller 3 and outer roller 4, middle roller 3
A plurality of uprights 31 are provided between lateral wall and the inner sidewall of outer roller 4.Being arranged radially along middle roller 3 of column 31,
Support is formed between middle roller 3 and outer roller 4, and middle roller 3 is rotated with the rotation of outer roller 4.Outer roller 4 passes through
5 installation settings of mounting rack, mounting rack 5 include the fixed ring 51 that is set in outer roller 4 and positioned at 51 lower section of fixed ring to be used for
The pedestal 52 of support.Mounting rack 5 is provided at two altogether in the present embodiment, and outer roller 4 can be under the driving of driving assembly 6
51 inner circumferential rotation of fixed ring.
Referring to Fig. 2 and Fig. 4, driving assembly 6 includes shaft 61, annular rack 41, transmission gear 611 and driving motor 62.
Shaft 61 is plugged in the pedestal 52 of mounting rack 5 along the lower section for being axially set in outer roller 4 of outer roller 4, one end, the other end
Through another pedestal 52 and end is connected with driving motor 62.It, can be with the circumferential rotation of drive shaft 61 after driving motor 62 is powered.
Annular rack 41 is provided at two altogether, and excircle side wall of the coaxial sleeve set on outer roller 4.Annular rack 41 and outer roller 4
Excircle side wall between be fixedly installed, transmission gear 611 at two are fixedly installed in shaft 61.Two transmission gears 611 divide
It is not meshed with corresponding annular rack 41.
Referring to Fig. 2 and Fig. 3, when dry, driving motor 62 drives shaft 61 and transmission gear 611 to rotate, and passes through driving cog
The circumferential rotation of engaged transmission driving outer roller 4 between 611 and annular rack 41 is taken turns, middle roller 3 is transferred certainly with outer roller 4
Rotation.It is outer as the open end of hot-air therefrom roller 3 enters that the dry material to be dried of the second backhaul is completed in middle roller 3
Roller 4, and it is mobile towards gas solid separation cell orientation in outer roller 4, and completion third backhaul is dry during this.
Referring to Fig. 2 and Fig. 3, gas solid separation unit includes gas solid separation case 7, and gas solid separation case 7 passes through pipeline and outer roller 4
One end far from material feeding box 1 is connected to.The bottom angled of gas solid separation case 7 is provided with drainage conduit 72, for the dry material completed
Discharge；Dusty gas outlet 71 is provided on roof, so that dusty gas is discharged after gas solid separation.
Referring to Fig. 2 and Fig. 3, need from the dust-laden exhaust gas of 71 discharge of the dusty gas of gas solid separation case 7 outlet by exhaust gas
The purification of clean unit can be vented.Exhaust purification unit includes bag filter 9 and dedusting bleed air hose 8, bag filter 9
It is connected by dedusting bleed air hose 8 with the dusty gas of gas solid separation case 7 outlet 71.The dust-laden that gas solid separation unit is isolated
Exhaust gas is imported into bag filter 9 via dedusting bleed air hose 8, the precipitation and purification of dust is completed in bag filter 9, most
Air is vented via the net gas outlet 91 on bag filter 9 after purification eventually.
Working principle is as follows:
Material to be dried is added from the feed hopper 111 on 11 top of feed pipe；Meanwhile burner 121 is occurred by hot wind
Generate hot-air, in the effect of the induced draught system of bag filter 9, entrainment of warm air material to be dried to drying unit direction
It is mobile.It after material enters the inner roller 2 of drying unit, is come into full contact in inner roller 2 with hot-air, completes the dry of the first backhaul
It is dry；Then, roller 3 in material entrance, it is dry to complete the second backhaul；Finally, it is dry to enter the completion third backhaul of outer roller 4 for material
It is dry.During drying, drive shaft 61 and transmission gear 611 to rotate by the driving of driving motor 62, by transmission gear 611 with
Engaged transmission between annular rack 41, driving outer roller 4 rotate.Roller 3 rotates synchronously in the drive of outer roller 4 of rotation, tool
There is increase material and is heated evenly degree.Meanwhile material is mobile along the route in " S " type in drying unit, has foot
The enough sufficient time is used to that heat exchange to occur with hot-air, so that the moisture evaporation in material, completes drying process.Due to this
The hot-air direct contact type heating means that utility model uses, material needs successively along " S " type path flows in drying process
The drying of three backhauls is undergone, while be aided with outer roller 4 in drying process is rotated such that material is heated evenly, and is greatly improved
Heat-transfer effect, the energy consumption for reducing dry unit volume material, improve drying efficiency, increase at dry in the unit time
The inventory of reason, and to the uniform drying of material, improve the processing qualities of finished product materials.
Above-mentioned specific embodiment is only the explanation to the utility model, is not limitations of the present invention, this
Field technical staff can according to need the modification that not creative contribution is made to the present embodiment after reading this specification,
But as long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (8)
1. a kind of three-pass rotary drum drying equipment, it is characterised in that: including drying unit, for being passed through material into drying unit
With the feed unit of hot-air, be connected to the gas solid separation unit of drying unit discharge end and outlet with gas solid separation unit
Hold the exhaust purification unit of connection；Wherein, the drying unit includes the inner roller (2) being coaxially arranged, middle roller (3) and outer rolling
Cylinder (4)；One end of the outer roller (4) is connected to gas solid separation unit；There are opening, the other ends for described inner roller (2) one end
It stretches out from outer roller (4) close to one end of feed unit and is connected to feed unit；The middle roller (3) is sheathed on inner roller
(2) outside, and close to one end of the close feed unit closed at one end of gas solid separation unit there are openings；The middle roller (3)
It is fixedly connected between lateral wall and the inner sidewall of outer roller (4) by a plurality of uprights (31)；The drying unit further includes using
In the mounting rack (5) of support outer roller (4), and the driving group for driving outer roller (4) circumferential rotation on mounting rack (5)
Part (6).
2. three-pass rotary drum drying equipment according to claim 1, it is characterised in that: the driving component (6) includes same
The annular rack (41) and be set to outside along the axis direction of outer roller (4) that axle sleeve is located on the excircle side wall of outer roller (4)
Shaft (61) below roller (4)；The transmission gear engaged with annular rack (41) is fixedly installed on the shaft (61)
(611) and the end of shaft (61) is connected with driving motor (62).
3. three-pass rotary drum drying equipment according to claim 1, it is characterised in that: the feed unit includes material feeding box
(1), feed pipe (11) and hot wind inlet pipe (12)；The hot wind inlet pipe (12) and inner roller (2) coaxial arrangement, and be respectively communicated in
The opposite two sidewalls of material feeding box (1)；The feed pipe (11) is connected to the roof of material feeding box (1)；The hot wind inlet pipe (12) is remote
One end from material feeding box (1) is provided with hot wind and burner (121) occurs.
4. three-pass rotary drum drying equipment according to claim 3, it is characterised in that: the bottom end of the feed pipe (11) connects
It is connected to and is located in material feeding box (1) and deviates the feeder pipe that the axis of feed pipe (11) is obliquely installed to drying unit direction
(112)。
5. three-pass rotary drum drying equipment according to claim 4, it is characterised in that: the top of the feed pipe (11) is set
It is equipped with feed hopper (111).
6. three-pass rotary drum drying equipment according to claim 1, it is characterised in that: the gas solid separation unit include with
The gas solid separation case (7) of the discharge end connection of outer roller (4), is provided with dusty gas on the roof of the gas solid separation case (7) and goes out
The drainage conduit (72) for dry ore in sand form to be discharged is communicated on mouth (71), bottom wall.
7. three-pass rotary drum drying equipment according to claim 6, it is characterised in that: the drainage conduit (72) is to far from dry
Dry cell orientation is obliquely installed.
8. three-pass rotary drum drying equipment according to claim 7, it is characterised in that: the exhaust purification unit includes cloth
Bag dust collector (9) and dedusting bleed air hose (8), described dedusting bleed air hose (8) one end are connected to containing on gas solid separation case (7)
At dirt gas vent (71), the inlet end of the other end and bag filter (9) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821458822.4U CN208901835U (en) | 2018-09-06 | 2018-09-06 | Three-pass rotary drum drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821458822.4U CN208901835U (en) | 2018-09-06 | 2018-09-06 | Three-pass rotary drum drying equipment |
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| Publication Number | Publication Date |
|---|---|
| CN208901835U true CN208901835U (en) | 2019-05-24 |
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ID=66571531
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821458822.4U Active CN208901835U (en) | 2018-09-06 | 2018-09-06 | Three-pass rotary drum drying equipment |
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| CN (1) | CN208901835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028907A (en) * | 2018-09-06 | 2018-12-18 | 苏州绿乘轻质绿色材料有限公司 | Three-pass rotary drum drying equipment and its application and inorganic lightweight aggregate ore in sand form drying means |
-
2018
- 2018-09-06 CN CN201821458822.4U patent/CN208901835U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028907A (en) * | 2018-09-06 | 2018-12-18 | 苏州绿乘轻质绿色材料有限公司 | Three-pass rotary drum drying equipment and its application and inorganic lightweight aggregate ore in sand form drying means |
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