CN106422974B - Combined type is crushed granulating and drying machine - Google Patents
Combined type is crushed granulating and drying machine Download PDFInfo
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- CN106422974B CN106422974B CN201610813851.7A CN201610813851A CN106422974B CN 106422974 B CN106422974 B CN 106422974B CN 201610813851 A CN201610813851 A CN 201610813851A CN 106422974 B CN106422974 B CN 106422974B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/22—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by pressing in moulds or between rollers
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- Treatment Of Sludge (AREA)
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Abstract
The invention belongs to wet stocks to be granulated principle and equipment group technology, and in particular to a kind of combined type pelletizer, including multiple layer combination cabinet, charging temporary feed bin, multilayer multiple groups roll mill.Every group of roll mill is equipped with swivel joint, cleaning blade, elastic stripping bracket, striker plate and deflector；Exhaust gas evacuation interface is also opened up on cabinet, pelletizer lowest level air inlet has been opened up on bracket.Higher than first layer roll mill rotating cylinder using the flank of tooth linear velocity and volumetric flow rate of second layer roll mill rotating cylinder, the flank of tooth linear velocity and volumetric flow rate ratio of the roll mill rotating cylinder of the netted tooth socket of lower layer's roll mill or independent radial tooth socket that adjoin are designed according to material in the Domain Volume characteristic.The pelletizer can not only remove rigid foreign matter; it is granulated the soft shape material such as cream, paste, slurry simply; pie, block material can also be made directly to pull into monomer particle simultaneously, soft, rigid material may be implemented while entering pelletizer, outlet particle has numerous holes and irregular contour.
Description
Technical field
The present invention principally falls into wet stock and is granulated principle and equipment group technology, more particularly, to the netted tooth using heat supply
Face roll mill is the combined type pelletizer of unit, which can be used for high moisture material, slurry, paste, paste, pie,
Block material is particularly suitable for the granulation desiccation project of said mixture material；Applied to environmental protection, metallurgy, light industry, chemical industry, food,
Medicine, feed, agriculture (woods is herded, fishing) industry product processing and other fields, to the higher cream of its water content, paste, slurry, cake, item, block
Material is granulated and is obtained desiccation (drying), and combined type pelletizer of the invention can also be granulated simultaneously city, industrial sludge
It obtains desiccation (drying).
Background technique
With continuing to bring out for new material (raw material), dry requirement is continuously improved；Municipal sludge, industrial sludge subtract
In quantization, innoxious work and industrialized production, desiccation is used as an indispensable processing stage again, wherein energy consumption
As consumption indicators main in drying process, especially everybody is paid close attention to.
In the mud drying process of environmental protection industry (epi), how under the premise of guaranteeing safety clean, energy is reduced to the maximum extent
Source consumption；Equally in the industries such as chemical industry, medicine, food, mineral products, smelting, how by high moisture material (cream, slurry, paste, cake, block
Shape) especially mixed material uses minimum energy consumption, completion granulation and drying process requirement, raising separate unit yield, and it has been many
The project of more scientific worker's researchs.
In drying sludge (change) industry, done again after there are many companies to reach 60% moisture content using high pressure sheet frame deep dehydration
The technique of change, and there are material water ratio non-uniform phenomenons after high pressure sheet frame deep dehydration.Due to the caking property of material part,
Beater grinder easily causes clogging, can not be normally carried out work.Prevent existing pelletizer from handling moisture content height
The soft material of (75%~90%) can not make under low (30%~75%) hardness of moisture content, uneven, viscous pasty state
With.
Since the management of sludge transportational process (especially developing countries and regions) is short of, cause sludge transport artificial
When auxiliary or vehicle-mounted process can mix foreign matter (such as brick, rubble, stone, bolt, nut, metal device), these hardness are different
Object is inevitable stuck in two roll mill rotating cylinder relative motions, causes apparatus overload to shut down and deforms with roll mill rotating cylinder, also, clears up
Repair is very cumbersome and dirty smelly, seriously affects normal production, loses the superiority condition of pelletizer automatic running.
Before drying section, mechanical dehydration system is all set.(especially: folded spiral shell machine, centrifuge, band due to mechanical dehydration
Formula filters pressing etc.) the variation of working condition, material nature difference (especially: pharmacy mycelium technical process microbiological contamination tank
Mycelium out), moisture percentage in sewage sludge deviation after causing mechanical dehydration is very big, state deviation is also very big.Sometimes as thin pulp is pasted
Shape is just directly entered granulating system, and such scattered paste shape material is between the gap of two roll mill rotating cylinder of pelletizer, not by changing
The contact in hot face just flows directly to bottom and generates blocking, seriously affects normal operation, also, cleaning work is very heavy.
Summary of the invention
The object of the present invention is to provide a kind of combined type pelletizer, by based on the roll mill that heats, using it is simple,
Roll mill drum surface is equipped with (containing the independent radial ringed slot) of numerous radial ringed slots and multi-head spiral groove alternating meshy arrangement
The roll mill of heating is unit, and being combined into can consume cream, slurry, paste, cake, block-like wet adhesive material or mixed material very
Under conditions of low kinetic energy and least thermal energy, at the same directly quench and take, be dried to it is irregular it is approximate intermediate have it is very lacunose
The combined type pelletizer of monomer particle.
In order to achieve the object of the present invention, following technical scheme is proposed:
A kind of combined type pelletizer, including multiple layer combination cabinet, charging are kept in feed bin, rolling unit, heating system and are moved
The top layer of Force system, the multiple layer combination cabinet is configured with air inlet and bottom support frame, institute configured with exhaust outlet, lowest level
Air inlet is stated to be arranged on the support frame；The multiple layer combination cabinet is using gas discharge in case, closed negative pressure adjusted and controlled air inducing, very
Empty pump goes out or opens wide the mode distributed and excludes the hot and humid gas generated in multiple layer combination cabinet；Each layer of the multiple layer combination cabinet
Cabinet is connected and fixed by multilayer pelletizer connecting flange, and the quantity of cabinet can arbitrarily increase and decrease；
The top for feeding temporary feed bin and being mounted on multiple layer combination cabinet, holds wet stock；It is described to feed temporary feed bin
Sealing is connected and fixed by feeding temporary feed bin connecting flange with the first layer box body of multiple layer combination cabinet；
The rolling mechanism that the rolling unit is 2 layers or 2 layers or more is rolled at, every layer of roll mill with 1 group or 1 group or more
Machine rotating cylinder processed is combined into an individual roll mill layer；Each layer roll mill is mounted in the multiple layer combination cabinet and arranges up and down
Column；
Elastic stripping bracket or elastic stripping film are set on the first layer roll mill rotating cylinder of feeding warehouse bottom rolling unit, used
In the rigid foreign matter in isolation wet stock and damps extraordinary material and rapidly enter roll mill；
The roll mill drum surface is equipped with radial ringed slot or multi-head spiral groove replaces meshy arrangement, is formed indenting
Pattern is operated between staggeredly canine tooth by opposite two roll mill rotating cylinder differentials and forms relative motion, and viscosity, block material is convenient
Pull into fluffy particle in ground；
Damper is housed between every layer of roll mill rotating cylinder in addition to the first layer roll mill, prevents material from roll mill rotating cylinder
It is led directly between gap；
The heating system includes the swivel joint being arranged on the roll mill rotating cylinder of every layer of roll mill, cooperation exhaust outlet,
Undermost air inlet provides three kinds of heating forms, is respectively as follows: steam, conduction oil and hot gas；Steam and conduction oil are indirect
Exchange heat heat source, and hot gas is the heat source that directly exchanges heat；
The dynamical system includes power combination and transmission system, the power combination by one or more groups of speed reducer and
Motor combination, the transmission system are made of sprocket wheel, gear or transmission shaft, and the transmission speed is by automatic control system, biography
Dynamic chain carries out hierarchical control or setting ratio transmission.
Further, striker plate is set on the multiple layer combination cabinet, the striker plate is separately mounted to every layer of roll mill
Two sides, wherein side striker plate lengthening contacted with the multiple layer combination cabinet wall, the lengthening striker plate of upper and lower level is mutual
It is staggered, the channel of hot and humid gas discharge is cooperatively formed with lowest level charge air flow and exhaust outlet.
Further, setting cleaning blade below each roll mill rotating cylinder, clears up radial netted tooth socket or independent radial teeth
Residual material in the slot of slot.
Further, the multiple layer combination cabinet is the modular cabinet by multiple independent, with unified installation dimension
It constitutes, each multiple layer combination cabinet installs one layer of roll mill, assembles according to upper and lower level, forms combined type pelletizer.
Further, in the row of the side side of the multiple layer combination cabinet of combined type pelletizer top layer roll mill position installation
Port connects air-introduced machine, will be outside useless, humid gas discharge machine；When heat source uses thermal current, in the same layer two sides of equivalent layer or friendship
Fork side position opens up inlet and outlet mouth.
Further, every group of the roll mill basket diameter, effective length, tooth socket of described every layer of roll mill of combined type pelletizer
Shape, size can be the same or different；Each layer roll mill rolls that rotating cylinder quantity is identical to be can also be different.
Further, the next layer of roll mill flank of tooth linear velocity and volumetric flow rate of the combined type pelletizer are than one layer thereon
The corresponding flank of tooth linear velocity of the roll mill rotating cylinder of roll mill and volumetric flow rate are big, remaining netted tooth socket of adjacent layer roll mill or list
Solely the corresponding flank of tooth linear velocity of roll mill rotating cylinder and volumetric flow rate of radial direction tooth socket are according to the volume characteristic of each water-cut stage of material
It adjusts.
Further, the Elastic tool post within angle θ is 60~180 °, Elastic tool post and roll mill rotating cylinder outer round surface
Gap τ is 2~10mm, generally takes 5mm；The draft angle γ of the roll mill rotating cylinder is 5~90 °.
Further, the roll mill basket diameter D is 150~2000mm, generally takes 300mm；The multi-head spiral of rotating cylinder
The design angle of the multi-head spiral angle ψ of axial tooth face is 20~45 °, and depth V is the 30%~80% of radial flank depth b；Turn
The number of teeth difference of gear on cylinder can also be identical；The diameter and logarithm of the roll mill rotating cylinder are identical or different, each layer rolling
Rolling gap among machine is arranged vertically in vertical direction or Heterogeneous Permutation.
Further, the field of conjugate action of the roll mill rotating cylinder is the field of conjugate action or plane of netted tooth socket or independent radial tooth socket
The slot form of the field of conjugate action of joint surface, the netted tooth socket or independent radial tooth socket is semicircle or flat shape；The cleaning
The angle α of blade tooth top cusp to roll mill rotating cylinder axial connecting line and the vertical symmetry center line in roll mill rotating cylinder axle center is 5~
135°；The angle β of the tangent line of bottom of the tooth or periphery is 0~30 ° at gear piece bottom surface and tooth tip point.
Advantageous effects of the present invention:
Present invention application slurry, paste, paste software carried out from gravity repeat granulation, realize moisture content in granule materials most
Limits are come to the surface, and dry materials power is greatlyd improve, and are made to save dry thermal energy, reduction power consumption, extending equipment
Reliable guarantee is provided with the service life；Structure of the invention is simple, easy to operate, rubs small, high-efficient；Using material itself it is soft,
The characteristic unfavorable to drying such as viscous, thick, poor air permeability, is changed into us and combines the advantage of granulation；It only needs to make in very little
Teeth portion edge material (very little is pullled with the power of transmission roll mill itself, plus the approximate sliding of very little part tooth drum surface
Region) in the case that low speed, differential tear friction, so that cream, paste, slurry, cake, block material directly become surface desiccation and have
The mutual adhesion of crackle, the intermediate monomer particle for having many holes gap.It is repeated several times by combination, it can be achieved that in material
Moisture content comes to the surface to greatest extent, greatlys improve dry materials power, makes its more convenient subsequent drying process, thus
Reduce kinetic energy, thermal energy consumption；And have very lacunose grain shape among capable of being formed in repeating granulation, increase particle
Gas permeability is more advantageous to particle internal moisture rapid evaporation.
The present invention will be in the soft object of drying under the action of mechanics using easy Elastic tool post (or stock stop/plate)
Between the rigid foreign matter removing that is mingled with or reject, after rigid foreign matter gathers a certain amount of, be manually easy to be stripped and show
The discharge of rigid foreign matter, be the method most directly, easy for solving rigid foreign matter sorting in soft, wet, viscous object, it is ensured that system is just
Often operation.
Present invention application multi-head spiral groove and numerous radial tooth sockets, form netted helical teeth cut surface, can not only be successfully
Blocky, pie material is nibbled, simultaneously as the arrangement of multi-head spiral groove is also balanced to tear power, avoids working impact inertia,
It makes equipment stress equalization more stable, obtains low power run；Relative to original smooth radial ringed tooth socket, the present invention forms dog
Tooth staggered pattern, convenient for shredding harder block material using very low dynamics.Multi-head spiral groove replaces netted row
The tooth tip of column can cause the tooth tip not ordered arrangement on roll mill rotating cylinder bus, but prolong helical row, in this way, cutting
When entering material, the phenomenon that can avoiding pulse stress, keeps rotating cylinder stress flexible balanced.
The present invention tears using simple low-power, low speed, differential and carries out pullling granulation to block, has prevented due to plate
The situation that the moist material in frame feed opening of press filter part can not operate normally for a long time in high speed disintegrator felt jam, convenient for light
Pine discerps block material, creates necessary condition for operation low power consumption；The operation of two roll mill rotating cylinder differentials can cause two flank of tooth
Speed difference, avoid " rigid material extrusion process " formation tear situation.Cooperate the tooth tip of multi-head spiral groove alternating meshy arrangement
Effect, rigid material just discerped in extremely low kinetic energy.It discerps and is distinguished with the broken mechanics for having essence of hard squeeze,
The sliding that will form material when two roll mill rotating cylinders are synchronized to the extruding of softer material, not will cause the body of rigid material extrusion process
Product contraction, which forms powerful torque, leads to equipment fault.Pelletizer is set to be applicable in the sludge of wider material software feature.
The present invention is equipped with damper using every layer of roll mill rotating cylinder between rolling: damper generates movement to small particle object
Interference forces it to participate in bulky grain, big block progress mixing granulation, and balanced material flows up and down speed in pelletizer,
It allows more molding fine particles to repeat to participate in being granulated, so that finished particle has more pore character, obtains quality more
The particle high, hole is more, humidity is uniform, irregular, specific surface area is bigger, enhances the molding of finished granule
Rate, porosity have thoroughly prevented plugging fault to accelerate evaporation to provide better body condition.Setting damper can also make
All materials pass through the heat-transfer surface of two roll mill rotating cylinders, and granulation zone is entered in two roll mill rotating cylinders slowly rotate, is prolonged
Material total residence time has been grown, dry tenacity is enhanced, heat exchange efficiency effectively improves, and scattered paste shape material can be realized all
Evaporation drying.
Above-mentioned improvement improves adaptability of the invention, and completing moisture content, from >=75% to be extended to >=30% similar
The soft or hard characteristic of the material of sludge can enter simultaneously to be completed to be granulated.Soft, hard material extensive adaptability has not only been expanded, has more been dropped
Low equipment operation kinetic energy consumption improves service life of equipment, reduces equipment design strength, reduces equipment investment, drop
Low cost of equipment maintenance.
Detailed description of the invention
Fig. 1 is the sectional schematic diagram (side view) of the single group rolling rotating cylinder of combined type pelletizer of the present invention；
Fig. 2 is the pairing schematic diagram (vertical view) of the single group rolling rotating cylinder of combined type pelletizer of the present invention；
Fig. 3 is the schematic three dimensional views (strabismus) of the single group rolling rotating cylinder of combined type pelletizer of the present invention；
Fig. 4 is the schematic three dimensional views (vertical view) of the single group rolling rotating cylinder of combined type pelletizer of the present invention；
Fig. 5 is the three-dimensional enlarged drawing of the single group rolling rotating cylinder tooth tip of combined type pelletizer of the present invention；
Fig. 6 is the single group multilayered structure schematic diagram of combined type pelletizer of the present invention；
Fig. 7 is the multiple groups multilayered structure schematic diagram of combined type pelletizer of the present invention；
Fig. 8 shows the netted tooth socket of rotating cylinder rectangle；
Fig. 9 shows the netted tooth engagement situation of rotating cylinder；
Figure 10 shows rotating cylinder conical mesh tooth socket.
Appended drawing reference:
01 charging 02 first layer roll mill of temporary storing bin
03 exhaust outlet, 04 swivel joint
05 cleaning 06 roll mill rotating cylinder of blade
07 striker plate, 08 second layer roll mill
09 strip-shaped materials, 10 n-th layer roll mill
11 multiple layer combination cabinet, 12 air inlet
The elastic stripping bracket of 13 half dry particl 14
15 16 support frames of rigid foreign matter
17 damper, 18 wet stock
19 flat shape tooth socket, 20 roll mill drum wall
21 engagement 22 heat source mediums of forming tank
23 feed temporary 24 multilayer pelletizer connecting flange of feed bin connecting flange.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with the drawings and specific embodiments,
The present invention is described in more detail.
Embodiment 1
The present invention is combined based on the roll mill of the rotating cylinder with netted helicla flute (or individually radial tooth socket)
Novel Granulation Equipments.When the rotation of the rotating cylinder forward and reverse of roll mill, the material of edge part of the flank of tooth is placed in due to differential
Netted tooth socket is torn, and blocky, pie material tearing can be discerped into little particle；When material is soft (such as slurry, cream, paste) object
When material, because of the effect of the friction of gravity and local tooth top, as the rotation of tooth is pulled in the axial groove of rotating cylinder and is continued
It moves downward until entering self-assembling formation bar or particulate matter in engaging groove.It may be selected reasonable turn of design for different material
Cylinder diameter is to meet the balance of the vector sum of sucking friction and strip forming force, so that strip or shaping particles power are minimum.
Damper is set in every layer of pairs of the intermediate of rolling rotating cylinder, prevents little particle and leads directly to and be not involved in mixing and repeat to make
The possibility of grain extends residence time of material, enhancing flat evaporator intensity, the more mushy particle of manufacture.
For the impurity (brick, rubble in such as river sludge) for having irregular lump in some softwares, it is arranged different
Roll mill basket diameter and elastic stripping bracket (elastic stripping film or stock stop/plate), using action and reaction power, flick hard
Grain makes it play the effect of sorting is removed.
At the same time, be passed to roll mill rotating cylinder inner cavity heat source (steam or conduction oil etc.) through roll mill drum wall conduction,
At unloaded region, the energy transient conduction that roll mill drum wall absorbs internal heat resource (or thermal energy of hot-air supply) storage is given
Above-mentioned surface of material.Since the temperature difference is big, heat conduction velocity is fast, is sharply heated by contacting material surface, and strip particle surface is rapid
Be warmed, and due to anxious heat occur material epidermis with engage between alveolar surface formed steam blanket explosion crackle and epidermis it is crisp
Phenomena such as change, volume are sharply shunk, deviates from strip-shaped materials naturally from tooth socket under gravity.Due to breathing freely for material
Property poor, the high steam film that strip-shaped materials surface in slot is formed when heated, there is the ability of isolation bar shaped particle and groove bottom,
And since the groove of netted tooth socket or independent radial tooth socket is equipped with draft angle, bar shaped (particle) shape material of surface desiccation embrittlement
Under the effect of gravity, deviate from groove naturally, complete the first step and shape surface desiccation, embrittlement process.
The bar or particulate matter of the drying of the above-mentioned epidermis embrittlement with crackle are due to big (or the other spies of material viscosity
Property), some is interior aqueous (crystallization water or other) in molecular structure to institute's water content (solvent) possibility, is caused inside particle
The ability of moisture content (or solvent) to outside transfer is poor, while the high temperature heat radiation in the non-contact material region of rotating cylinder, convection current, so that
The surface of material of above-mentioned disengaging tooth socket still continues to evaporate heated, therefore in a short time, brittle epidermis will not be by counter tide, In
Rotating cylinder after falling into second layer roll mill is pulled into before tooth socket, and surface is still independent the table of desiccation, embrittlement, cracking
Face.The flank of tooth linear velocity and volumetric flow rate of second layer roll mill rotating cylinder are higher than the rotating cylinder of first layer roll mill, when formed strip
Into after second layer roll mill rotating cylinder tooth socket, since linear velocity or volume flow rate increase, strip is pulled off, and freely falls in second
On layer roll mill rotating cylinder, this freely falling body causes strip is random to be distributed on the second layer roll mill rotating cylinder flank of tooth, by the
Two layers of roll mill tooth rotating cylinder cut off to form short strip or random particle, these objects are squeezed before second layer rotating cylinder tooth socket by micro-
After pressure breaking, the softer material among the broken particle intermediate, former into particle of original hard shell is wrapped in hard shell, in rotating cylinder tooth socket
Middle surface is sharply heated, and can equally be formed high steam film in the flank of tooth, bottom, side and be generated isolation and embrittlement, cracking, hardening thing
Surface is expected, when shaped particles move to bottom since the effect of gravity is detached from roller seating space.As described above, when entering third layer roll mill
When flute profile is to roll mill rotating cylinder, strip is shorter, and particle is more uniform, and particle surface has obtained preferably embrittlement, cracking, hardening.
As needed, multilayer and multiple groups can be set in upper and lower position in the rolling machine, to meet processing capacity, surface
Drying particles, big hard block (such as brick, stone) requirement of separation.
The flank of tooth linear velocity and appearance of external circe speed, netted tooth socket or independent radial tooth socket that upper and lower layer roll mill is run
Product flow velocity is to ensure that the key of operation: under normal circumstances, external circe speed, flank of tooth linear velocity and the volume of adjacent lower roll mill
Flow velocity must be more bigger than upper layer, so that lower layer's flank of tooth is enough the bar for receiving upper layer volume flow and pulling apart upper layer whereabouts
Material, it is convenient to be granulated；For the material that volume after row into strips material (granulation) dry tack free is sharply shunk, can be received according to volume
Contracting actual conditions, appropriateness improve lower layer's external circe speed, flank of tooth linear velocity and volumetric flow rate；
In granulation process, pass through the flank lines of the external circe speed of the upper and lower, netted tooth socket or independent radial tooth socket
Strip-shaped materials fall into lower layer's roll mill rotating cylinder face at random and are cut off again after speed and volume flow speed difference pull apart strip material
Form new strip-shaped materials (short strip shape material or particle)；
In the above process, strip-shaped materials (or particle) outer surface and roll mill rotating cylinder outer surface Contact heat transfer, table
Face sharply absorbs heat of vaporization, every time the outer surface of available surface desiccation, embrittlement, cracking；When being passed to lower layer again, originally
Desiccation, embrittlement, cracking outer surface be involved in the inside of new strip-shaped materials (particle), originally internal moisture be broken out at
The new surface that heat of vaporization is sharply absorbed for surface sharply absorbs heat by the multiple repetition of multilayer, pulls apart, cuts off, surface
Evaporation drying gradually forms the particle that irregular, approximate centre has very lacunose, specific surface area very big；Meanwhile roll mill
Drum surface is cleared up in time by matched scraper, it is ensured that the heat exchange efficiency of roll mill drum surface and accumulation of heat, exothermal efficiency.
When rigid foreign matter (riverway sludge, sewage plant sludge, ore dressing etc.) may be mixed into granulation dried material, combining
The top of formula pelletizer first layer is mounted with Elastic tool post (or stock stop/plate), in this way, softer material is pressed into due to gravitative pressure
In roll mill tooth socket, rigid foreign matter (brick, rubble, stone, nut, bolt, metal and non-metallic vessel, fragment etc.) is blocked
In Elastic tool post or stock stop/plate top, with the movement of roll mill rotating cylinder, the surface softer material of rigid foreign matter is stripped,
It is possible that roll mill rotating cylinder and the rigid foreign matter of stock stop/plate stitch gap are embedded into, during exercise, since action and reaction power is same
When generate, under rigid foreign matter is acted on by Elastic tool post (or stock stop/plate) elastic force, constantly bounced off gap area, hardness is different forever
It floats above Elastic tool post (or stock stop/plate), when reaching a certain amount of, cleaning can be shut down.Simple technology solves
World-famous puzzle.
The rotating cylinder of pelletizer of the invention is respectively provided with the blade of movable slot form, to clear up groove or object remained on surface
Body, so that surface keeps working condition.
Cooperate attached drawing and given embodiment below, combined type granulator structure for the present invention is described in detail such as
Under.
It is the single group multilayered structure schematic diagram of combined type pelletizer of the present invention referring to Fig. 6, Fig. 6；List provided by the present invention
The combined type pelletizer of group multilayered structure includes a charging temporary storing bin 01, first layer roll mill 02, second layer roll mill 08, the
N-layer roll mill 10, multiple layer combination 11, the main components such as dynamical system, pelletizer support frame 16, wherein multiple layer combination cabinet 11
It is fixedly connected for multi-layer box by multilayer pelletizer connecting flange 24, multiple layer combination cabinet 11 or single layer cabinet.In
Exhaust outlet 03, air inlet 12, roll mill rotating cylinder 06 and striker plate 07 are configured on the multiple layer combination cabinet 11 of equipment；It is rolled at every layer
Swivel joint 04, cleaning blade 05 are set on the roll mill rotating cylinder 06 of machine processed；Bullet is set on the rotating cylinder 06 of first layer roll mill
Property stripping bracket (or elastic stripping film) 14, damper 17 is set on the rotating cylinder 06 of subsequent every layer of roll mill, feeds temporary material
Storehouse connecting flange 23 and multilayer pelletizer connecting flange 24 complete the configuration of combined type pelletizer.
Charging temporary storing bin 01 is installed in the top of equipment multiple layer combination cabinet 11, and wet stock 18 is covered with first layer rolling
Machine 02 makes roll mill remain at working condition at full capacity, and good negative pressure is kept inside combined type pelletizer, and separates the
One layer of 02 top of roll mill, avoids air from being inhaled into.Charging temporary storing bin 01 also sets up level sensor (not shown), by material position
Signal is sent into robot control system(RCS), is replenished in time by material-transporting system completion to feed bin material, the bed of material is kept to remain not low
In minimum thick layer.
The combined type pelletizer of a set of single group multilayered structure is typically at least made of 2 layers or 2 layers or more of roll mill layer.Often
Layer roll mill has 1 group of roll mill rotating cylinder 06, is combined into an individual firing floor；All roll mill rotating cylinders 06 have been respectively mounted general
Swivel joint 04 as heat source input, go out important component；All roll mill rotating cylinders 06 have been respectively mounted matched cleaning blade
05 as the important component for clearing up residual material in netted tooth socket or the individually slot of radial tooth socket；The diameter of roll mill rotating cylinder 06,
The slot form and size of netted tooth socket or individually radial tooth socket can be identical or different；In combined type pelletizer whole design,
Design principle is to allow the material for falling on first layer to the second interlayer under the roll mill rotating cylinder of upper layer can be in time by adjacent lower
Roll mill rotating cylinder conveys in time.Since the pressure of first layer material from reformation is big, humidity is high, quality is soft；Second layer object
Expect that gravity pressure is small, humidity is reduced, and quality is also gradually hard, when the overcurrent gap area that the roll mill rotating cylinder of relative motion is formed is identical
When, the volume of material that first layer falls is bigger than the second layer, and therefore, the volume flow rate of the second layer must be bigger than first layer.Under subsequent
The material of layer is of substantially equal from the pressure reformed, then needs ensuring adjacent upper overcurrent according to volume of material variation characteristic
Material can be enough to be taken away by lower layer in the case where never generating obstruction, reduce speed ratio, improve the heat exchange of roll mill rotating cylinder
Efficiency.
Damper 17, enhancing evaporation intensity, retardance little particle are set on the subsequent every layer of roll mill rotating cylinder 06 of first layer
It is straight-through, improve particle porosity, reduce dry thermal energy consumption.
Elastic tool post (or elastic stripping bracket/piece) 14 is mounted on the top of first layer, in this way, softer material is due to gravity pressure
It is pressed into roll mill tooth socket by force, rigid foreign matter 15 is blocked in the top of Elastic tool post 14.With the movement of roll mill rotating cylinder,
The surface softer material of rigid foreign matter 15 is stripped, it is possible to be embedded into roll mill rotating cylinder 06 and the hardness in 14 gap of Elastic tool post is different
Object 15 during exercise, under the elastic force effect of Elastic tool post 14, is blocked (spring) and floats above Elastic tool post 14, reach one
When quantitative, spring is changed into pulsed power (torque) signal (blind controller system completion) output, and operative employee is reminded to stop
Machine cleaning.
Under normal circumstances, the peripheral flank of tooth linear velocity of roll mill rotating cylinder 06 and volumetric flow rate be then when second layer roll mill 08 rotates
Higher than first layer roll mill 02 rotation when periphery flank of tooth linear velocity and volumetric flow rate；Flank of tooth linear velocity and volumetric flow rate refer to phase
The area in the gap of roll mill rotating cylinder raker tooth and between cog to movement and the product of the tangential linear velocity of roll mill rotating cylinder, that is, phase
Between the volume flow in gap the roll mill rotating cylinder of movement.When n-th layer roll mill 10 rotates, roll mill rotating cylinder periphery flank of tooth linear speed
Periphery flank of tooth linear velocity and volumetric flow rate when degree and volumetric flow rate are then higher than the rotation of (n-1) layer roll mill rotating cylinder；Speedup
How many bulk properties for depending on granulation material granulation drying process.The material accumulation volume of combined type granulating and drying process from
Top to bottm generally reduces 3, area etc. part by volume expansion area, the locked area of volume and volume and forms, when volume is reduced obviously
When, roll mill rotating cylinder periphery flank of tooth linear velocity and volumetric flow rate are then lower than turning for upper layer roll mill rotating cylinder when lower layer's roll mill rotates
Periphery flank of tooth linear velocity and volumetric flow rate when dynamic.These, all will be depending on the bulk properties in material different in moisture stage.With it is logical
Normal roll mill is the same, under (side) end installation cleaning blade 05, material in roll mill tooth is cleared up in time.
All roll mill rotating cylinders the supply of mountable heat source, output mechanism swivel joint 04, continually to supply heat
Energy.
The present invention provides three kinds of heating forms, is respectively as follows: steam, conduction oil and hot fume (or hot gas)；It steam and leads
Hot oil is indirect heat exchange heat source, and hot fume (or hot gas) is the heat source that directly exchanges heat.Steam is clear energy sources, and conduction oil is to follow
The ring energy.
Equipment multiple layer combination cabinet 11 can be combined with single-layer or multi-layer, and every layer of roll mill is mounted on one solely under normal circumstances
In vertical cabinet, multilayer is applied in combination up and down.Upper and lower layer box body can be according to unified installation dimension, so as to combined type pelletizer
Can multi-layered modular combine, convenient for standardization, large-scale production and during system debug to combined type be granulated
Machine roll mill the number of plies (heat exchange area) increases or decreases；In special circumstances, the whole series can also be completed by a single layer cabinet to set
The installation of standby multilayer multiple groups roll mill.It is arranged on exhaust outlet 03 and bracket 16 in pelletizer first layer and undermost air inlet is set
12, the exhaust gas evaporated can be discharged in time, reduce the intracorporal moisture content of case, power is evaporated in enhancing work；Every layer box body is all
Including striker plate 07, directing material enters the work of lower layer's roll mill.When the suitable position of design, striker plate 07, which extends, becomes inside
The deflector of gas, the intracorporal air-flow of whole case after combination is under the guidance of deflector, gradually according to certain design flow direction
Across each roll mill layer, the steam evaporated is taken away, enhances dry power.
Multiple layer combination cabinet bottom connects support frame 16.Support frame 16 is equipped with air inlet 12；Pelletizer support frame 16
It can also be supported by upstream device and constitute (such as tray drying mechanism member), in this case, the particle of pelletizer discharge is not necessarily to
Transportation system can be directly entered upstream device and continue drying；The gas or heat source of supplement can also be direct by lower end equipment interface
It provides.
In multiple layer combination cabinet 11 gas discharge mode can be closed negative pressure adjusted and controlled air inducing, be also possible to vacuum extraction or
Open wide sporadic form.If air inlet need to be supplemented, air preheating system can be set.If gas element in the control pelletizer needed
When content, corresponding monitoring system can be set.Or it can also be by bypass be arranged in closed circuit circulatory system so that boil-off gas is discharged
Body.
The transmission (being not shown in Fig. 6) of combined type pelletizer: one end of roll mill rotating cylinder 06 is mounted with swivel joint 04, separately
One end will install power drive mechanism (such as gear, sprocket wheel, transmission shaft, speed reducer and motor), under normal circumstances, every group
Box-like pelletizer is transported whole equipment transmission by sprocket wheel, gear or transmission shaft by 1 group of power (speed reducer and motor combine)
Row gets up, and can also be driven by multiple groups (containing 2 groups or more) power, transmission speed is by automatic control system according to physical property linear speed
The characteristic of degree, the flank of tooth linear velocity of netted tooth socket or independent radial tooth socket and volumetric flow rate needs to carry out Discrete control.
Fig. 7 is the multiple groups multilayered structure schematic diagram of combined type pelletizer of the present invention；It on each layer include multiple groups roll mill
Rotating cylinder (every a pair of roll mill rotating cylinder is one group), forms multiple rolling surfaces, while also increasing the capacity of charging temporary storing bin 01, improves
Wet stock conveying and rolling efficiency, adapt to different needs.
The layout of the roll mill rotating cylinder can be single-row multilayer (such as n-layer), as shown in Figure 6；It is also possible to multiple row (m
Column) multilayer (n-layer), as shown in Figure 7.
The outside diameter D of roll mill rotating cylinder1、D2、……Dn: the diameter of rotating cylinder can be identical, i.e. D1=D2=...=Dn,
It is also possible to random value.
Rotating cylinder outside diameter D determines that diameter is big according to material hardness, flow characteristics, and first layer strip-shaped materials machine is to rolling
The material compression amount of machine rotating cylinder processed is just big, generates resistance with regard to big, consumption power is just high；Diameter is small, and pelletizer list roll mill turns
For cylinder heat exchange area with regard to small, the equipment of same evaporability also seems that mating complexity, practical efficiency reduce because axis rod increases.Cause
This, the design of roll mill rotating cylinder outside diameter must satisfy under the premise of lower power consumption, smoothly complete strip-shaped materials (object
The output of material strip shape) molding, reach target that is energy-saving, completing granulating and drying task.
The size range of D can generally use 300mm (practical roll mill rotating cylinder outer diameter ruler within the scope of 150~2000mm
Very little value need to reduce ε).
D can be random value, that is, the diameter dimension of the strip-shaped materials roll mill rotating cylinder of same layer can be different, not
The diameter dimension of the strip-shaped materials roll mill rotating cylinder of same layer can also be different, and the pelletizer combined in this way equally can satisfy
Production requirement.
In the case where more than the strip-shaped materials machine number of plies, to mitigate active thrust load, multiple power sources can be set；
Material lesser for caking property, when upper and lower level strip-shaped materials machine logarithm, diameter are identical, among strip-shaped materials machine
Rolling gap upper and lower level material will be caused to pass perpendicularly through strip-shaped materials machine layer without under vertically on a vertical line
Heat exchange is carried out in surface layer, influences the granulation outcome that conducts heat, so, will misplace arrangement.Rotating cylinder logarithm is different or roll mill rotating cylinder is straight
Diameter difference can misplace in vertical direction the rolling gap among strip-shaped materials machine, and the object of whereabouts, which can be arranged in, to be rolled
Heat-transfer effect is played on machine rotating cylinder processed.
Fig. 1-3 is the structural schematic diagram of single group rolling rotating cylinder, and wherein Fig. 1 is the sectional schematic diagram (side that single group rolls rotating cylinder
Depending on), it shows from section and understands, when harder material is granulated, take N1 < N2 speed to differ, the rotating cylinder on the left side plays slow
Slow feeding and the situation for pulling material is stayed, the rotating cylinder on the right plays the role of pullling material, and the relative motion of left and right rotating cylinder completes drawing
Pull the effect of block, pie material；When granulation is uniform soft material, N1=N2 can be taken；
Fig. 4 is the schematic three dimensional views (vertical view) of single group rolling rotating cylinder；, show the working condition with clock synchronization；
Fig. 5 is the three-dimensional enlarged drawing of single group rolling rotating cylinder tooth tip, shows three-dimensional intuitive manner；
Fig. 8-Figure 10 shows that the netted tooth socket of roll mill rotating cylinder of the present invention or the individually construction of radial tooth socket and engagement situation show
It is intended to.21 be engagement forming tank in figure, and 22 be heat source medium, and 20 be roll mill drum wall；A is the radial facewidth, b is tooth depth, c is
Bottom of the tooth circle center to the distance of the flank of tooth, R be bottom of the tooth radius of circle, V is multi-head spiral groove depth, W is multi-head spiral groove width；
Wherein, γ is draft angle, and draft angle will be according to hard sand that may be present in material viscosity, humidity, hardness and material
The decision of the characteristics such as gravel, 5~90 ° of general value；
δ is engaging tooth point axial gap, and ε is engagement tooth tip radial clearance, δ and ε special according to material hardness, viscosity, flowing
Sign determines, it is therefore an objective to guarantee there are enough gaps, on the basis of sectility, pullling molding (strip-shaped materials shape) to guarantee to roll
The caused movement interference phenomenon of the heated thermal expansion of machine rotating cylinder.
α is the folder of the vertical symmetry center line in tooth top cusp and roll mill rotating cylinder axial connecting line and roll mill rotating cylinder axle center
Angle, 5~135 ° of value, angle is determined according to the arrangement and friction pressure angle of each layer of combined type pelletizer, in edge
Roll mill rotating cylinder increases angle in the possible situation of cabinet installation space, general to use 105 °；Among every layer box body
Roll mill rotating cylinder, due to the limitation in cabinet installation space, angle can only be laid out at 5~45 °, general to use 15 °；
β is the angle of the tangent line in bottom of the tooth (outer circle) face at gear piece bottom surface and tooth tip point, 0~30 ° of value, general to use 15 °,
A friction pressure angle is given, blade is enabled successfully to remove the material in slot.
θ is Elastic tool post within angle, and 60~180 ° of value different according to the hardness that may be present in softer material for needing to reject
The feature of object determines the size of angle.
τ is the gap of Elastic tool post and 04 outer round surface of roll mill rotating cylinder.Generally according to need that may be present in softer material
The size characteristic of the rigid foreign matter to be rejected determines the size in gap.Range is 2~10mm, generally takes 5mm.
Particular embodiments described above has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention,
All within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in of the invention
Within protection scope.
Claims (12)
1. a kind of combined type pelletizer, including multiple layer combination cabinet, the temporary feed bin of charging, rolling unit, heating system and power
System, which is characterized in that the top layer of the multiple layer combination cabinet (11) is configured with air inlet configured with exhaust outlet (03), lowest level
Mouth (12) and bottom support frame (16), the air inlet (12) are to be arranged on support frame (16)；The multiple layer combination cabinet
(11) multiple layer combination case is excluded in such a way that gas discharge, closed negative pressure adjusted and controlled air inducing, vacuum in case are extracted out or opened wide and distribute
The hot and humid gas generated in body (11)；Each layer box body of the multiple layer combination cabinet (11) is by multilayer pelletizer connecting flange (24)
It is connected and fixed, the quantity of cabinet can arbitrarily increase and decrease；
The top for feeding temporary feed bin (01) and being mounted on multiple layer combination cabinet (11), holds wet stock (18)；The charging
Temporary feed bin (01) is connect admittedly with the first layer box body of multiple layer combination cabinet (11) by feeding temporary feed bin connecting flange (23)
Fixed sealing；
The rolling mechanism that the rolling unit is 2 layers or 2 layers or more is at every layer of roll mill has 1 group or 1 group or more of roll mill
Rotating cylinder (06) is combined into an individual roll mill layer；Each layer roll mill be mounted in the multiple layer combination cabinet (11) and on
Lower arrangement；
Elastic stripping bracket or elasticity stripping are set on the first layer roll mill rotating cylinder (06) for feeding temporary bin bottom rolling unit
From piece (14), rigid foreign matter (15) for being isolated in wet stock (18) simultaneously damps extraordinary material and rapidly enters roll mill；
The roll mill drum surface is equipped with radial ringed slot and multi-head spiral groove replaces meshy arrangement, forms indenting pattern
And netted helical teeth cut surface, the tooth tip of multi-head spiral groove alternating meshy arrangement cause tooth tip to prolong spiral shell on roll mill rotating cylinder bus
Spin line arrangement, when cut material, the phenomenon that avoiding pulse stress, keeps the flexible equilibrium of rotating cylinder stress；Pass through opposite two rolling
Machine rotating cylinder differential forms relative motion between operating in staggeredly canine tooth, and viscosity, block material are easily pullled into fluffy particle,
The design angle of the multi-head spiral angle ψ of the multi-head spiral axial tooth face of rotating cylinder is 20~45 °, and depth V is radial flank depth b's
30%~80%；
Damper (17) are housed between every layer of roll mill rotating cylinder in addition to the first layer roll mill, prevent material from roll mill rotating cylinder
It is led directly between gap；
The heating system includes the swivel joint (04) being arranged on the roll mill rotating cylinder (06) of every layer of roll mill, cooperation exhaust
Mouth (03), undermost air inlet (12) provide three kinds of heating forms, are respectively as follows: steam, conduction oil and hot gas；It steam and leads
Hot oil is indirect heat exchange heat source, and hot gas is the heat source that directly exchanges heat；
The dynamical system includes power combination and transmission system, and the power combination is by the speed reducer of 1 group or multiple groups and electronic
Machine combination, the transmission system are made of sprocket wheel, gear or transmission shaft, and transmission speed is carried out by automatic control system, transmission chain
Hierarchical control or setting ratio transmission.
2. pelletizer according to claim 1, which is characterized in that striker plate is arranged on the multiple layer combination cabinet (11)
(07), the striker plate (07) is separately mounted to the two sides of every layer of roll mill, wherein side striker plate (07) lengthen with it is described
The contact of multiple layer combination cabinet (11) inner wall, the lengthening striker plate (07) of upper and lower level mutually staggers, with undermost air inlet (12)
The channel of hot and humid gas discharge is cooperatively formed with exhaust outlet (03).
3. pelletizer according to claim 2, which is characterized in that setting cleaning blade below each roll mill rotating cylinder (06)
(05), the radial netted tooth socket of cleaning or individually residual material in the slot of radial tooth socket.
4. pelletizer according to claim 3, which is characterized in that the multiple layer combination cabinet (11) is by multiple independences
, there is the modular cabinet of unified installation dimension to constitute, each multiple layer combination cabinet (11) installs one layer of roll mill, according to upper
Lower layer's assembling, forms combined type pelletizer.
5. pelletizer according to claim 4, which is characterized in that in the multilayer of the combined type pelletizer top layer roll mill
The exhaust outlet (03) of the side side position installation of combination box (11) connects air-introduced machine, will be outside useless, humid gas discharge machine；When heat source is adopted
When with thermal current, inlet and outlet mouth is opened up in the same layer two sides of equivalent layer or intersection side position.
6. pelletizer according to claim 5, which is characterized in that every group of described every layer of roll mill of combined type pelletizer rolls
Machine basket diameter processed, effective length, slot form, size can be the same or different；Each layer roll mill rolls rotating cylinder quantity phase
It is same to can also be different.
7. pelletizer according to claim 5, which is characterized in that the next layer of roll mill flank of tooth of the combined type pelletizer
Linear velocity and volumetric flow rate flank of tooth linear velocity more corresponding than the roll mill rotating cylinder of one layer of roll mill thereon and volumetric flow rate are big,
The corresponding flank of tooth linear velocity of roll mill rotating cylinder and volumetric flow rate root of the remaining netted tooth socket of adjacent layer roll mill or independent radial tooth socket
It adjusts according to the volume characteristic of each water-cut stage of material.
8. pelletizer according to claim 7, which is characterized in that the elasticity stripping bracket or elastic stripping film within angle θ
It is 60~180 °, the gap τ of the elasticity stripping bracket or elastic stripping film and roll mill rotating cylinder (06) outer round surface is 2~
10mm；The draft angle γ of the roll mill rotating cylinder (06) is 5~90 °.
9. pelletizer according to claim 8, which is characterized in that the elasticity stripping bracket or elastic stripping film and roll mill
The gap τ of rotating cylinder (06) outer round surface is 5mm.
10. pelletizer according to claim 8, which is characterized in that the roll mill basket diameter D is 150~2000mm；
The number of teeth difference of gear on rotating cylinder can also be identical；The diameter and logarithm of the roll mill rotating cylinder are identical or different, and each layer rolls
Rolling gap among machine processed is arranged vertically in vertical direction or Heterogeneous Permutation.
11. pelletizer according to claim 10, which is characterized in that the roll mill basket diameter D is 300mm.
12. pelletizer according to claim 10, which is characterized in that the field of conjugate action of the roll mill rotating cylinder (06) is netted
Tooth socket or the individually field of conjugate action or plane engaging surface of radial tooth socket, the netted tooth socket or the individually tooth of the field of conjugate action of radial tooth socket
Groove shape is semicircle or flat shape；Cleaning blade (05) the tooth top cusp turns to roll mill rotating cylinder axial connecting line and roll mill
The angle α of the vertical symmetry center line in cylinder axle center is 5~135 °；The tangent line of bottom of the tooth or periphery at gear piece bottom surface and tooth tip point
Angle β is 0~30 °.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610813851.7A CN106422974B (en) | 2016-09-11 | 2016-09-11 | Combined type is crushed granulating and drying machine |
| TW105131107A TWI611835B (en) | 2016-09-11 | 2016-09-26 | Combined granulator |
| PCT/CN2016/100505 WO2018045609A1 (en) | 2016-09-11 | 2016-09-28 | Combined granulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610813851.7A CN106422974B (en) | 2016-09-11 | 2016-09-11 | Combined type is crushed granulating and drying machine |
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| Publication Number | Publication Date |
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| CN106422974A CN106422974A (en) | 2017-02-22 |
| CN106422974B true CN106422974B (en) | 2019-11-12 |
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| CN201610813851.7A Active CN106422974B (en) | 2016-09-11 | 2016-09-11 | Combined type is crushed granulating and drying machine |
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| Country | Link |
|---|---|
| CN (1) | CN106422974B (en) |
| TW (1) | TWI611835B (en) |
| WO (1) | WO2018045609A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107519816A (en) * | 2017-09-09 | 2017-12-29 | 安徽瑞虎肥业有限公司 | A kind of composite heat transfer drum granulating machine |
| CN207850011U (en) * | 2017-12-11 | 2018-09-11 | 靖江市鑫盛环保科技有限责任公司 | Combined type is crushed granulating and drying machine |
| CN108905894B (en) * | 2018-06-13 | 2021-03-09 | 武汉科技大学 | Automatic drawing of patterns dry powder granulator |
| CN108745201A (en) * | 2018-08-15 | 2018-11-06 | 浙江森友环保成套设备有限公司 | A kind of mud granulizing mechanism |
| CN109758974A (en) * | 2019-02-20 | 2019-05-17 | 江苏华岳昇环保科技有限公司 | A kind of combined type granulating and drying machine |
| CN110479573B (en) * | 2019-08-09 | 2022-05-27 | 张元才 | Foreign matter sorting device |
| CN112645558B (en) * | 2020-12-30 | 2023-01-24 | 河南艾尔旺新能源环境股份有限公司 | Sludge drying system and sludge drying treatment process |
| CN112745006B (en) * | 2020-12-30 | 2023-01-24 | 河南艾尔旺新能源环境股份有限公司 | Drying and granulating device |
| CN115301153A (en) * | 2022-07-18 | 2022-11-08 | 靖江绿森环保科技有限公司 | Granulator with clean structure |
| CN117258683B (en) * | 2023-10-21 | 2024-03-22 | 江苏洪流智能装备制造有限公司 | Large-volume negative electrode coating granulation equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106422974A (en) | 2017-02-22 |
| TW201808443A (en) | 2018-03-16 |
| WO2018045609A1 (en) | 2018-03-15 |
| TWI611835B (en) | 2018-01-21 |
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