CN206709108U - A kind of shaftless feed system of biomass boiler - Google Patents
A kind of shaftless feed system of biomass boiler Download PDFInfo
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- CN206709108U CN206709108U CN201720335726.XU CN201720335726U CN206709108U CN 206709108 U CN206709108 U CN 206709108U CN 201720335726 U CN201720335726 U CN 201720335726U CN 206709108 U CN206709108 U CN 206709108U
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Abstract
The utility model belongs to conveying mechanism technical field, and in particular to a kind of shaftless feed system of biomass boiler.This structure is made up of Shaftless spiral blade, lucite tube, material bin, motor, frequency converter, and Shaftless spiral blade is provided with the conduit of institute's lucite tube, and described Shaftless spiral blade passes through reduction box and motor connection；Motor drives Shaftless spiral blade to rotate under Frequency Converter Control, and material is moved to discharging opening by the progradation of helical blade by material bin.For this structure when ks very littles, i.e., pitch is smaller relative to the diameter of helical blade, and when the larger material of conveying coefficient of friction, material, which easily presss from both sides, to be got lodged between two neighboring helical blade, causes the blocking of material conveying process；When ks is very big, i.e., pitch being relatively large in diameter relative to helical blade, the retardation of material axial movement significantly increase, and are unfavorable for the normal conveying of material；Consider processing factors, there is provided diameter and the relation of pitch, is advantageous to the raising of efficiency.
Description
Technical field
The utility model belongs to conveying mechanism technical field, and in particular to a kind of shaftless feed system of biomass boiler.
Background technology
Biomass energy because its distribution it is wide, renewable the advantages that, considerable status is occupied in China's energy resource structure.
Wherein, because collecting, transporting and using reasons such as technologies, quite typically divide stalk to be burned in field, produce volume of smoke and ash,
Cause PM2.5 in air to rise, seriously pollute air., can be by using various conversion skills with the progress and development of science and technology
Art efficiently utilizes biomass energy, clean electric power and the energy is produced, progressively to substitute the non-renewable energy such as coal, oil and natural gas
Source.Therefore, comprehensive development and utilization biomass energy recycles to waste resource, energy resource structure conversion, environmental protection and improvement
Etc. being significant.
Biomass energy is after the 4th potential energy source of oil, coal and natural gas, constitutes about the 14% of wastage in bulk or weight, is not sent out at some
60% is accounted for up to area.Biomass energy is a kind of common energy shape for being stored in solar energy in biology using biomass as carrier
Formula.Biomass energy is unique and reproducible, and its is widely distributed, growth is fast, low nitrogen low-sulfur, CO2Zero-emission, it is environment-friendly type energy
Source.Biomass energy itself also has its weakness, and biomass energy is can be with the low-density low-grade energy of fuel, energy density compared with mineral
It is low to cause it all to bring larger difficulty among storage and transport.Countries in the world governmental advancement Biomass Energy Industry development,
Implement as Major Strategic, the consumption figure of the biomass energy in European Union and the U.S. accounts for total energy consumption
More than 4%, the Biomass Energy Utilization ratio of Sweden is up to 32%, the utilization to grain alcohol, biogas and solid molding fuel
Technology comparative maturity, forms certain industry size.Development of the Chinese government to Biomass Energy Industry is paid much attention to,
Put into effect《Renewable Energy Law》, for biodiesel, biomass power generation and alcohol fuel etc. formulated detail specification and
Detailed rules for the implementation, while means ensure the sane development of the industry for the use of the economic means and financial subsidies two.It is proposed biology
Matter using energy source target：The year two thousand twenty is expected, China's bio-fuel total amount is up to the 15% of all traffic fuel, lifting biology
Fuel industry international competitiveness.
Wherein biomass boiler is the energy conversion device of biomass fuel, particularly, when biomass feed system not
When can ensure charging rate, the efficiency of boiler will substantially reduce, and the feed system of biomass boiler uses spirally to enter mostly
Material machine, wherein shaftless feed system can be divided into horizontal shaftless feed system, vertical shaftless charging according to the difference of placement location
System and the shaftless feed system of inclination, shaftless feed system, which can both convey bulk granular material, can also convey big particle diameter material.People
Horizontal shaftless feed system and vertical shaftless feed system are released into tandem product, the product in prolonged practical application
Tire out a large amount of experiences, gradually research and development have manufactured a variety of new products.
As technology and equipment is quickly grown, it is substantially mainly manifested in two aspects：On the one hand be its functional diversities,
Have a wide range of application, it is of all kinds to common are tubular helical conveyer, high dip angle band conveyer, three-dimensional turn conveying worm etc.
Conveying type；On the other hand it is as the progress and development of science and technology, screw conveyor technology are also developed rapidly, especially
It is that conveying capacity, fed distance, transporting velocity etc. have a distinct increment, while modern detecting is applied into conveying equipment
In cause conveying worm integral working have profound level raising, helical feed installation feature：Equipment enlarging.If
It is standby to develop towards maximization direction, to meet need of the coal industry annual production as ten thousand tons of efficient high yield intensive manufactures of 300-500
Ask；Using the new and high technology such as dynamic analysis technology principle and electromechanical integration technology, computer control automation, high-power soft is utilized
Starting and its auto-tensioning technology, air blower is equipped conveyer and carry out On-Line Dynamic Monitoring and monitoring, largely drop
The low tension force of conveyer belt, equipment working is good, and transfer efficiency is high；Driven using multimachine driving with medium drive
And its power-balance technology and conveyer change direction operation etc. technology, the unit operation length of conveying device is broken in theory
It is restricted, ensure that the stability and reliability of interchangeability, versatility and its unit driving of conveying equipment；It is new and
High reliability critical component technology.Such as rolled comprising a variety of advanced high-power driving arrangements for speed regulation including CST etc., self-cleaning type
Wound packages is put, high life High-speed Idler, quick self-movable foot end and efficient belt storage apparatus etc..As FSW companies of Britain produce
FSW1200/ conveying worms have just used liquid to glue differential and RHVC so that equipment transport capacity up to 3000t/h with
On, its afterbody supports the use with new elevating conveyor, can quickly elapse with working face and move certainly automatically, artificial to participate in few, production
Efficiency is increased dramatically.
Utility model content
The purpose of this utility model is to provide a kind of biomass boiler shaftless feed system.
What the purpose of this utility model was realized in：
A kind of shaftless feed system of biomass boiler, by Shaftless spiral blade 1, lucite tube 2, material bin 3, motor 4,
Frequency converter 5 is formed, and Shaftless spiral blade is provided with the conduit of institute's lucite tube, and described Shaftless spiral blade passes through deceleration
Case and motor connection；Motor drives Shaftless spiral blade to rotate under Frequency Converter Control, and material is made by the propulsion of helical blade
Discharging opening is moved to by material bin；Described Shaftless spiral blade is in concentric annular spiral shape, the thickness of Shaftless spiral blade
Successively decreased by Inside To Outside, the outer of Shaftless spiral blade is provided with barrier；The rectangular cross-section of barrier；Along shaftless spiral shell
The interior edge of vane piece is provided with reinforcement, and the power transmission shaft of the Shaftless spiral blade is made up of connecting shaft and stress axle, it is described by
A part for power axle is extended in the Shaftless spiral blade and is welded and fixed with Shaftless spiral blade, the chi of Shaftless spiral blade
Very little to have external diameter be D, internal diameter d, pitch S, length L, its pitch diameter ratio ks=S/D=0.5, thickness as outside and inner thickness
Ratio be 1:2.6 ~ 3, the angle that one of face of inner side and the inside edge of helical blade are transitioned into from outside is 85 °,
The angle of another face and inward flange is 88 °
Vibrator 6, main vibration spring 7, base 8 and isolation spring are additionally provided with below described lucite tube and motor
9, vibrator is made up of electromagnet and armature, is the exciting source of whole system, and wherein armature consolidates with lucite tube and motor,
Magnet coil is made up of wire and high magnetic conductivity silicon steel sheet overlapping, is fixedly mounted on by magnetic core seat on base；Main vibration spring is adopted
It is formed by stacking with epoxy resin composite plate or steel spring plate, centre is separated using the thick pads of 1mm, and its upper and lower ends passes through spiral shell
Bolt is coupled with hopper and base respectively；Isolation spring is arranged between base and frame, using rubber spring or spiral bullet
Spring.
Described material bin is triangular pyramid, and the upper end of hopper body is feeding mouth, and the lower end of hopper body is discharging opening, described
The size of discharging opening is less than the size of feeding mouth.Four blocks of sheet metals of material bin are formed, edge discharges on described material bin inwall
Pan feeding direction is provided with a plurality of protection rib, and described protection rib is that work shape protects rib, and described every work shape protection rib includes
One top surface steel plate and two groups or more top surface steel plate, top surface Interal fixation device include bottom fixation steel plate, bottom
Cushion made of quality of rubber materials is provided with fixation steel plate, top surface steel plate is provided with cushion, top surface steel plate passes through bolt
It is detachably connected with material bin sheet metal；Described protection rib is uniformly arranged on material bin sheet metal inwall.
Described feeding mouth is provided with screen system, and described screen system has a framework, had on the inside of the framework more
Individual track neck；And multiple filter screens, each filter screen distinguish holding among rail groove；Track neck and filter screen are set in zigzag
Put in framework, the mesh of described filter screen sets mesh number according to volume of material.
Described isolation spring includes upper lid, rubber pneumatic bag and piston, one end of the rubber pneumatic bag by upper snap ring with
The upper cover buckle pressure connection, the other end are withheld with the piston by lower snap ring and are connected；The piston connects with the rubber pneumatic bag
The one end connect is provided with compression spring stop part；The upper lid is provided with external screw thread connection, and the piston is provided with internal thread company
Connect；The piston is cylindric；One end of compression spring is socketed on the piston end surface in the compression spring stop part, separately
One end is connected with stop tab.
The inwall of the lucite tube post thickness be 0.1-0.2mm polyethylene film, polystyrene film, poly- pair
PET film, the abrasionproof film to stack together successively from the bottom to top.
The beneficial effects of the utility model are：
For this structure when ks very littles, i.e., pitch is smaller relative to the diameter of helical blade, when conveying coefficient of friction is larger
During material, material, which easily presss from both sides, to be got lodged between two neighboring helical blade, causes the blocking of material conveying process；When ks is very big,
That is pitch being relatively large in diameter relative to helical blade, the retardation of material axial movement significantly increase, and are being unfavorable for material just
Often conveying；Consider processing factors, there is provided diameter and the relation of pitch, is advantageous to the raising of efficiency.
Brief description of the drawings
Fig. 1 is structure chart of the present utility model.
Embodiment
1 pair of the utility model is described further below in conjunction with the accompanying drawings.
This structure uses the biomass continuous conveying device of designed, designed, and motor drives helical blade under Frequency Converter Control
Rotate, material is moved to discharging opening by the progradation of helical blade by feeding mouth.Conveying device mainly by helical blade, have
Machine glass tube, material bin, motor, frequency converter, weighing utensil etc., the whole structural scheme design of device are as shown in Figure 1.
A kind of shaftless feed system of biomass boiler, by Shaftless spiral blade, lucite tube, material bin, motor, frequency conversion
Device forms, and is provided with Shaftless spiral blade in the conduit of institute's lucite tube, described Shaftless spiral blade by reduction box and
Motor connection；Motor driven under Frequency Converter Control Shaftless spiral blade rotate, material by helical blade progradation by
Material bin is moved to discharging opening；Described Shaftless spiral blade is in concentric annular spiral shape, and the thickness of Shaftless spiral blade is by interior
Laterally outside is successively decreased, and the outer of Shaftless spiral blade is provided with barrier；The rectangular cross-section of barrier；Along shaftless screw leaf
The interior edge of piece is provided with reinforcement, and the power transmission shaft of the Shaftless spiral blade is made up of connecting shaft and stress axle, the stress axle
A part extend in the Shaftless spiral blade and be welded and fixed with Shaftless spiral blade, the size of Shaftless spiral blade has
External diameter is D, internal diameter d, pitch S, length L, its pitch diameter ratio ks=S/D=0.5, the ratio of thickness as outside and inner thickness
It is worth for 1:2.6 ~ 3, the angle that one of face of inner side and the inside edge of helical blade are transitioned into from outside is 85 °, another
The angle of individual face and inward flange is 88 °.
Vibrator, main vibration spring, base and isolation spring are additionally provided with below described lucite tube and motor, is swashed
The device that shakes is made up of electromagnet and armature, is the exciting source of whole system, and wherein armature consolidates with lucite tube and motor, electromagnetism
Coil is made up of wire and high magnetic conductivity silicon steel sheet overlapping, is fixedly mounted on by magnetic core seat on base；Main vibration spring uses ring
Oxygen resin composite plates or steel spring plate are formed by stacking, and centre is separated using the thick pads of 1mm, and its upper and lower ends passes through bolt point
It is not coupled with hopper and base；Isolation spring is arranged between base and frame, using rubber spring or helical spring.This
Structure utilizes electromagnetic exciting principle, and armature is put to maintain hopper persistently and stable vibration by inhaling.It is passed through the friendship of mechanical periodicity
After stream electricity, electromagnetic attraction is produced in the positive half cycle of alternating current, the negative half period of alternating current is checked because halfwave rectifier acts on, armature
Drive hopper continuously of reciprocating vibration in the presence of pulse-electromagnetic force, the material being placed on hopper shakes as hopper carries out the cycle
It is dynamic, it ensure that material can uniformly sink while transmission, entrance will not be got lodged in.
Described material bin is triangular pyramid, and the upper end of hopper body is feeding mouth, and the lower end of hopper body is discharging opening, described
The size of discharging opening is less than the size of feeding mouth.Four blocks of sheet metals of material bin are formed, edge discharges on described material bin inwall
Pan feeding direction is provided with a plurality of protection rib, and described protection rib is that work shape protects rib, and described every work shape protection rib includes
One top surface steel plate and two groups or more top surface steel plate, top surface Interal fixation device include bottom fixation steel plate, bottom
Cushion made of quality of rubber materials is provided with fixation steel plate, top surface steel plate is provided with cushion, top surface steel plate passes through bolt
It is detachably connected with material bin sheet metal；Described protection rib is uniformly arranged on material bin sheet metal inwall.This structure utilizes
The top surface steel plate of protection rib avoids material bin sheet metal from receiving the material impact that eminence is fallen, while using made of quality of rubber materials
Cushion reduces the vibration of material bin sheet metal, and material bin sheet metal can be effectively protected, and reduces enterprise and is produced into
This, improves enterprises production efficiency.
Described feeding mouth is provided with screen system, and described screen system has a framework, had on the inside of the framework more
Individual track neck；And multiple filter screens, each filter screen distinguish holding among rail groove；Track neck and filter screen are set in zigzag
Put in framework, the mesh of described filter screen sets mesh number according to volume of material.
Described isolation spring includes upper lid, rubber pneumatic bag and piston, one end of the rubber pneumatic bag by upper snap ring with
The upper cover buckle pressure connection, the other end are withheld with the piston by lower snap ring and are connected；The piston connects with the rubber pneumatic bag
The one end connect is provided with compression spring stop part；The upper lid is provided with external screw thread connection, and the piston is provided with internal thread company
Connect；The piston is cylindric；One end of compression spring is socketed on the piston end surface in the compression spring stop part, separately
One end is connected with stop tab.Said structure uses attaching type structure, is connected to rubber pneumatic bag by the contraction of upper and lower snap ring
On lid and piston, rubber pneumatic bag and upper lid and piston are connected as one, both can guarantee that the intensity of air spring, also allows for batch
Production；Air bag can be cut into by different length according to the impulse stroke of air spring simultaneously, change movement travel.In piston
Portion increases compression spring stop part, can buffer road surface moment impact load.
The inwall of the lucite tube post thickness be 0.1-0.2mm polyethylene film, polystyrene film, poly- pair
PET film, the abrasionproof film to stack together successively from the bottom to top.
By adjusting digital display Frequency Converter Control motor speed, helical blade pivoting under the driving of motor, biomass
Raw material is continuously fallen into lucite tube under gravity from material bin, by the impetus of rotating screw blade, by
Material is caused to be slided relative to helical blade side to the frictional force and material self gravitation collective effect of material in conveying inside pipe wall
Move, material had not only done radial rotating but also axially moved under the promotion of helical blade, through being fallen by discharging opening after after a while
Under, complete conveying purpose.
Shaftless spiral blade is because of its non-stop layer axle, and blade is flexible big, and helical blade is curved by that can occur after external forces
Song deformation, while axial stretching deformation can also occur under responsive to axial force, its advantage is to substantially reduce material and spiral
The mechanical interference of blade and tube wall, material can be smoothly conveyed, its shortcoming is can not to transmit output high pulling torque, and can not be direct
With motor connection, it is necessary to weld a bit of mandrel in its one end, by key and motor connection, impart power to helical blade and enter
And realize the purpose of conveying material.The delivery pipe space that component material conveys together with helical blade, exist for convenience of material is observed
Feed status in delivery pipe, transparent organic glass pipe is selected, lucite is a kind of macromolecule transparent material, its chemical name
Polymethyl methacrylate is, is formed by methyl methacrylate polymerization, there is high abrasion degree.
After motor rotates, all particles are around fixed-axis rotation on the helical blade with certain lift angle, without axle
To movement, a kind of illusion is produced to people yet with continuous tilting screw blade：Just as cavity one by one continuously from
One direction is moved to another direction, and the speed of this movement rotates a circle for motor, and cavity moves forward a pitch
Distance.This effect can allow people to feel if filling up material, and the material in this cavity is just as motor rotates one week
And the distance of a pitch is moved forward, I did such experiment：Particle diameter is more than between helical blade and tube wall
The material in gap is added in conveying device, and ensures that height of materials is less than the height of helical blade, in this case, material
Axial movement is only directly related with the number of turns of rotary electric machine.The influence axially blocked discounting for material in real work, thing
The speed for expecting to move axially in conveying device can be calculated as follows：
V=Sn/60, n are motor speeds.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (6)
- A kind of 1. shaftless feed system of biomass boiler, by Shaftless spiral blade, lucite tube, material bin, motor, frequency converter Form, Shaftless spiral blade be installed in the conduit of institute's lucite tube, it is characterised in that：Described Shaftless spiral blade passes through Reduction box and motor connection；Motor drives Shaftless spiral blade to rotate under Frequency Converter Control, and material pushes away by helical blade Enter effect and discharging opening is moved to by material bin；Described Shaftless spiral blade is in concentric annular spiral shape, Shaftless spiral blade Thickness is successively decreased by Inside To Outside, and the outer of Shaftless spiral blade is provided with barrier；The rectangular cross-section of barrier；Along nothing The interior edge of axle helical blade is provided with reinforcement, and the power transmission shaft of the Shaftless spiral blade is made up of connecting shaft and stress axle, institute The part for stating stress axle is extended in the Shaftless spiral blade and is welded and fixed with Shaftless spiral blade, Shaftless spiral blade Size to have external diameter be D, internal diameter d, pitch S, length L, its pitch diameter ratio ks=S/D=0.5, thickness as outside and inner side The ratio of thickness is 1:2.6 ~ 3, it is transitioned into one of face of inner side from outside and the angle of inside edge of helical blade is 85 °, the angle of another face and inward flange is 88 °.
- A kind of 2. shaftless feed system of biomass boiler according to claim 1, it is characterised in that：Described lucite Vibrator, main vibration spring, base and isolation spring are additionally provided with below pipe and motor, vibrator is by electromagnet and armature structure Into, be whole system exciting source, wherein armature and lucite tube and motor consolidate, and magnet coil is by wire and high magnetic conductivity Silicon steel sheet overlapping is made, and is fixedly mounted on by magnetic core seat on base；Main vibration spring uses epoxy resin composite plate or spring steel Plate is formed by stacking, and centre is separated using the thick pads of 1mm, and its upper and lower ends is joined with hopper and base respectively by bolt Knot；Isolation spring is arranged between base and frame, using rubber spring or helical spring.
- A kind of 3. shaftless feed system of biomass boiler according to claim 1, it is characterised in that：Described material bin is Triangular pyramid, the upper end of hopper body is feeding mouth, and the lower end of hopper body is discharging opening, and the size of the discharging opening is less than feeding mouth Size；Four blocks of sheet metals of material bin are formed, edge discharging pan feeding direction is provided with a plurality of protection on described material bin inwall Rib, described protection rib are that work shape protects rib, and described every work shape protection rib includes a top surface steel plate and two groups or two The top surface steel plate of the group above, top surface Interal fixation device include bottom fixation steel plate, rubber material are provided with the fixation steel plate of bottom Cushion made of matter, top surface steel plate is provided with cushion, top surface steel plate is detachably connected by bolt and material bin sheet metal Connect；Described protection rib is uniformly arranged on material bin sheet metal inwall.
- A kind of 4. shaftless feed system of biomass boiler according to claim 3, it is characterised in that：Described feeding mouth is set Screen system is equipped with, described screen system has a framework, there are multiple track necks on the inside of the framework；And multiple filters Net, each filter screen distinguish holding among rail groove；Track neck and filter screen are arranged on the interior of framework, described filter in zigzag The mesh of net sets mesh number according to volume of material.
- A kind of 5. shaftless feed system of biomass boiler according to claim 2, it is characterised in that：Described isolation spring Including upper lid, rubber pneumatic bag and piston, one end of the rubber pneumatic bag is connected by upper snap ring and the upper cover buckle pressure, the other end Withheld and be connected with the piston by lower snap ring；The piston is provided with compression spring with one end that the rubber pneumatic bag is connected to be stopped Block piece；The upper lid is provided with external screw thread connection, and the piston is provided with internal thread connection；The piston is cylindric；It is described One end of compression spring is socketed on the piston end surface in compression spring stop part, and the other end is connected with stop tab.
- A kind of 6. shaftless feed system of biomass boiler according to claim 1, it is characterised in that：The lucite tube Inwall post thickness be 0.1-0.2mm polyethylene film, polystyrene film, pet film, The abrasionproof film to stack together successively from the bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720335726.XU CN206709108U (en) | 2017-03-31 | 2017-03-31 | A kind of shaftless feed system of biomass boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720335726.XU CN206709108U (en) | 2017-03-31 | 2017-03-31 | A kind of shaftless feed system of biomass boiler |
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| Publication Number | Publication Date |
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| CN206709108U true CN206709108U (en) | 2017-12-05 |
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ID=60467608
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720335726.XU Active CN206709108U (en) | 2017-03-31 | 2017-03-31 | A kind of shaftless feed system of biomass boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115851294A (en) * | 2022-12-22 | 2023-03-28 | 杭州热星科技有限公司 | Anti-blocking self-cleaning device for dust-containing pyrolysis oil gas outlet |
-
2017
- 2017-03-31 CN CN201720335726.XU patent/CN206709108U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115851294A (en) * | 2022-12-22 | 2023-03-28 | 杭州热星科技有限公司 | Anti-blocking self-cleaning device for dust-containing pyrolysis oil gas outlet |
| CN115851294B (en) * | 2022-12-22 | 2023-07-11 | 杭州热星科技有限公司 | Dustproof pyrolysis oil gas outlet anti-blocking self-cleaning device |
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Address after: 238200 Huaxing logistics channel 1, Anhui fine chemical base, Wujiang Town, he County, Ma'anshan City, Anhui Province Patentee after: MAANSHAN Yongqiang Energy Saving Technology Co.,Ltd. Address before: 317000 No. 69, Yicheng Road, Gucheng street, Taizhou City, Zhejiang Province Patentee before: ZHEJIANG DONGDU ENERGY SAVING TECHNOLOGY Co.,Ltd. |
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