CN101786616A - Atmosphere grinding and sintering integrated furnace - Google Patents
Atmosphere grinding and sintering integrated furnace Download PDFInfo
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- CN101786616A CN101786616A CN200910045684A CN200910045684A CN101786616A CN 101786616 A CN101786616 A CN 101786616A CN 200910045684 A CN200910045684 A CN 200910045684A CN 200910045684 A CN200910045684 A CN 200910045684A CN 101786616 A CN101786616 A CN 101786616A
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Abstract
The invention discloses an atmosphere grinding and sintering integrated furnace, which is mainly applied to the field of production of lithium-ion battery anode materials and other powders. The conventional production equipment has the disadvantages of single function, low efficiency and low product quality. The atmosphere grinding and sintering integrated furnace is mainly provided with a furnace system, an atmosphere system and a grinding system, wherein the furnace comprises a sealed furnace tube and a material inlet and a material outlet on the furnace tube; the furnace tube is arranged on an elastic bracket, and the furnace body is additionally provided with a heater; the atmosphere system comprises an air inlet and an air outlet on the furnace tube and a valve, an air supply or a vacuum pump connected with the furnace tube; the grinding system comprises a grinding medium flowing in the furnace tube, and a driving device connected with the furnace tube and can simultaneously grind and sinter materials in the furnace tube under the control of the atmosphere. Therefore, the functions of the device are increased; the efficiency is improved; the materials are heated uniformly and quickly in the furnace tube; the particle size of the product is small and the homogeneity and the purity are high; and the product quality is improved.
Description
Technical field
The present invention relates to lithium cell anode material of lithium iron phosphate powder production technical field
Background technology
Present industrial production lithium cell anode material of lithium iron phosphate powder, what generally adopt is that various composition raw materials mix by ball mill mixing refinement, forwards in the sintering oven through transferring equipment that sintering forms under atmosphere protection to.Sintering oven divides static furnace again, is mainly pusher furnace, prepares the research (Chen Guohong etc., electronic industry specific equipment, 2006 total the 141st phases) of equipment as the lithium-ion-power cell material ferric lithium phosphate; Iron lithium phosphate agglomerating plant--the development (Lee strives, electronic industry specific equipment, 2007 total the 150th phases) of the two pushed bat kilns of full filamentary material atmosphere.Dynamically stove is mainly rotary kiln, as polygonal cross-section boiler tube continous way rotary kiln (China Patent No.: ZL200720031926.2.); The continuous external-heat atmosphere protection of heating resisting metal boiler tube rotary kiln (China Patent No.: ZL200720032095.0.).
These static furnaces, be placed on during the material sintering in the alms bowl body, material is in relative static conditions, and thermal conduction from outside to inside, heat transfer rate is slow, inside and outside the inequality of being heated, it is insufficient to absorb heat, each composition of material can not fully be reacted, it is long that material is fired the cycle, material is placed in the alms bowl body that contaminated chance is big, and purity is not high, and equipment effectiveness is low; The superfine material is heated and easily is agglomerated into macrobead, the product granularity inequality of burning till; And the lasting input and output material of pusher furnace makes furnace sealing relatively poor continuously.The dynamic rotation stove, though can be by rotating boiler tube and scraper plate being set in boiler tube and boiler tube is made section polygon, material is overturn, but because the restriction of body of heater input and output material section and heating zone static and dynamic sealing interface, boiler tube rotating speed low (less than 10 rev/mins), materials overturning still is not very fast, and the material agglomeration still can not finely solve, and the product that burns till is the granularity inequality still; The material heat transfer rate, inside and outside the heat absorption of being heated still undesirable, each composition of material still can not fully be reacted, and is prone to folder and burns, simultaneously because the boiler tube pipe shaft is long, material is translational speed and inconsistent in pipe, and is also just inconsistent to the duration that is heated that goes out pipe from inlet pipe, is prone to give birth to burning, burning, and boiler tube and two input and output material section static and dynamic sealing interface reality of rotation usually seal relatively poor, the product that burns till so still purity is not high, and it is still longer that material is fired the cycle, and equipment effectiveness is low; Whole production flow process process is ground, transfer, and many complete equipments such as heating make that also material probability contaminated and waste is big.
Summary of the invention
Want further to improve the quality of products, improve equipment effectiveness, must solve above-mentioned following technical problem: 1. heat transfer rate is slow during the material sintering, the insufficient problem of inhomogeneous heat absorption of being heated; 2. the easy agglomerating particles of material becomes big problem; 3. existing agglomerating plant sealing effectiveness difference problem; 4. whole process of production must be used grinding, transfer, many complete equipments of heating problem.
By the present invention, above-mentioned technical problem is to solve like this, and this atmosphere grinding and sintering integrated furnace has system of bf body to comprise the boiler tube of sealing, and the feed inlet and outlet on the boiler tube, boiler tube are placed on the elastic support; The atmosphere system comprises porting on the boiler tube and the air valve that links with it, air supply source or vacuum pump; It is characterized in that also having: system of bf body is with well heater, grinding system; Described grinding system comprises grinding medium that moves in the boiler tube and the drive unit that links with boiler tube.
Just make atmosphere grinding and sintering integrated furnace by such scheme, at first to vacuumize or feed desired gas in the boiler tube with vacuum pump, start the drive unit that links with boiler tube and make grinding medium generation high speed irregular movement in the boiler tube, to material produce strong wallop and shearing force with improved grinding after suitable degree, opening well heater heats material simultaneously, material is vibrated in boiler tube and bump and high-speed motion, fully contact with grinding medium with the tube wall that is heated, make material evenly fully be heated fast.And the grinding medium of high-speed motion produce powerful surging force and shearing force with macrobead in the material of reuniting shear break up diminish simultaneously that the material of quick thermally equivalent is further levigate.There are not boiler tube input and output material section and heating zone static and dynamic sealing interface in the present invention, and disposable feeding intake, so whole boiler tube good airproof performance.Improved grinding, sintering, atmosphere control are carried out in same boiler tube of the present invention jointly, have solved in the whole production flow process and must use many complete equipments problems such as grinding, transfer, heating.
The drive unit of atmosphere grinding and sintering integrated furnace of the present invention can be the eccentric wheel type vibrator that rigidity is installed in furnace tube outer wall, and it links by shaft coupling and variable-frequency motor, on the rack-mount or boiler tube of variable-frequency motor.Shaft coupling is a resilient coupling,
Variable-frequency motor also can change common electric machine into, is installed on the boiler tube as variable-frequency motor also can connect with solid coupling and vibrator.
The drive unit of atmosphere grinding and sintering integrated furnace of the present invention also can be installed in the electromagnetic vibrator of furnace tube outer wall for rigidity.
The drive unit of atmosphere grinding and sintering integrated furnace of the present invention also can be installed in the Pneumatic vibrator of furnace tube outer wall for rigidity, and it links by airway and air pump.
The drive unit of atmosphere grinding and sintering integrated furnace of the present invention also can be installed in the formula vibrator that surges of furnace tube outer wall for rigidity, and it links by water pipe and hydro-pump circulation.
The drive unit of atmosphere grinding and sintering integrated furnace of the present invention also can be for being installed in the agitator in the boiler tube, agitator links by the variable-frequency motor outside shaft coupling and the boiler tube, variable-frequency motor has seal closure outward, and variable-frequency motor is fixed in the seal closure, and seal closure is fixed on boiler tube one end.Described agitator is the fence type structure, also can be leaf structure.Variable-frequency motor also can change common electric machine into and add variator.Shaft coupling can be resilient coupling or solid coupling.
The drive unit of atmosphere grinding and sintering integrated furnace of the present invention also can be for being installed in the variable-frequency motor on the boiler tube outer support, and variable-frequency motor links by resilient coupling and the central rotating shaft that passes boiler tube, and whole boiler tube rotates with rotating shaft.Variable-frequency motor also can change common electric machine into and add variator.
The boiler tube of atmosphere grinding and sintering integrated furnace of the present invention is the cylindricality alloy vessel of fire-resistant abrasion-proof sealing, the optional 310s stainless steel of fire-resistant abrasion-proof metal or contain the molybdenum alloy of little tantalum, zirconium, chromium, the cross section can be circle, ellipse or Polygons, boiler tube inwall can be equipped with aluminum oxide or zirconia ceramics fire-resistant abrasion-proof inner lining.
The grinding medium that moves in the atmosphere grinding and sintering integrated furnace boiler tube of the present invention be several hardness Mo Shi more than 6.5 grades, more than fusing point 1000 degree Celsius, spheroid, spheroid or the polyhedron of volume below 100 cubic centimetres.Usually select aluminum oxide or zirconia ball, the about boiler tube total volume of ball loadings half.
The present invention adopts the eccentric wheel type vibrator; The atmosphere grinding and sintering integrated furnace well heater that electromagnetic vibrator or Pneumatic vibrator drive can be for settling a refractory metal pipe at the boiler tube axial line, and two ends are furnace tube outer wall fixedly, and the inside is placed some electrothermal tubes and tamped sealing by magnesia powder.Described electrothermal tube is the electrothermal tube of built-in resistor silk.
The present invention adopts the eccentric wheel type vibrator; The atmosphere grinding and sintering integrated furnace well heater that electromagnetic vibrator or Pneumatic vibrator drive also can on furnace tube outer wall around or along the electrothermal tube of direction of axis line secured in parallel built-in resistor silk.
The atmosphere grinding and sintering integrated furnace well heater that the present invention adopts eccentric wheel type vibrator, electromagnetic vibrator or Pneumatic vibrator to drive also can be for settling a refractory metal pipe at the boiler tube axial line, two ends are furnace tube outer wall fixedly, the electrothermal tube that some built-in resistor silks are placed in the inside tamp sealing by magnesia powder and on furnace tube outer wall around or along the electrothermal tube of direction of axis line secured in parallel built-in resistor silk.
The atmosphere grinding and sintering integrated furnace well heater that the present invention adopts built-in agitator on furnace tube outer wall around or along the electrothermal tube of direction of axis line secured in parallel built-in resistor silk; Or along the calrod of direction of axis line secured in parallel, described calrod is the resistive heating rod of tungstenic, molybdenum, silicon or chromium.
The present invention adopts the calrod of atmosphere grinding and sintering integrated furnace well heater for not rotating with boiler tube of boiler tube rotation outside boiler tube, around the thermal insulation layer that is placed on the support is arranged around the boiler tube, described calrod is fixed on the thermal insulation layer inwall, and described calrod is the resistive heating rod of tungstenic, molybdenum, silicon or chromium.
The present invention adopts the atmosphere grinding and sintering integrated furnace well heater of built-in agitator or boiler tube rotation for to settle combustion heater or oil heater, described combustion heater or oil heater to comprise the combustion chamber around boiler tube outside boiler tube; Evenly be placed in bocca in the combustion chamber and the controller outside the combustion chamber.
The furnace tube outer wall of atmosphere grinding and sintering integrated furnace of the present invention is equipped with cooling water jacket or temperature drop pipe.
The opening for feed of the boiler tube of atmosphere grinding and sintering integrated furnace of the present invention is added with funnel during charging above boiler tube; The discharge port of boiler tube is below boiler tube, and discharge port is equipped with the fire-resistant abrasion-proof filter disc, and sealing cover is housed during the feed inlet and outlet inoperative.
Atmosphere grinding and sintering integrated furnace of the present invention is equipped with lifting device on the support of the discharge port the other end, can be fluid pressure type or sped structure.
Atmosphere grinding and sintering integrated furnace of the present invention is to connect more than two with the air valve that venting port links.Air valve can adopt vacuum breaker or minute-pressure safety valve, and the pressure of two air valves equates.
Vibrator used in the atmosphere grinding and sintering integrated furnace of the present invention can be single use, also can be a plurality of up and down one group of synchronized drive.
Atmosphere grinding and sintering integrated furnace of the present invention is as adopting eccentric boiler tube one side that is installed in of vibrator, and then the boiler tube opposite side is equipped with equalizing feature, and equalizing feature can be a counterbalance weight, and counterbalance weight also can change the body of heater that quality equates into.
Atmosphere grinding and sintering integrated furnace of the present invention is as adopting eccentric boiler tube one side that is installed in of vibrator, then the boiler tube opposite side is equipped with equalizing feature, they are placed on the support spring of support, the axis of one side support spring is between the gravity axis of boiler tube and vibrator, and the axis of opposite side support spring is between the gravity axis of boiler tube and equalizing feature.
Atmosphere grinding and sintering integrated furnace of the present invention drives as adopting vibrator, also can be in the horizontal both sides of vibrator, and the body of heater that two quality of arranged parallel equate.
Variable-frequency motor can be water-cooled or oil-cooled motor in the atmosphere grinding and sintering integrated furnace of the present invention, and variable-frequency motor also can be other buncher.
The body of heater of atmosphere grinding and sintering integrated furnace of the present invention expands with heat and contract with cold and regulates by the spring on the elastic support.
The present invention compared with prior art has following four big advantages:
One: product quality improves.In apparatus of the present invention, mixing of materials is heated evenly sufficient reacting, can reduce the generation of dephasign.And agglomeration is controlled with the long-time grinding that continues and is made the relative littler more homogeneous of material particular diameter.For the positive level of lithium cell material ferric lithium phosphate, its particle diameter is more little, and the battery specific storage is big more, and performance is excellent more.
Two: the usefulness production capacity improves.Material is heated rapidly, heat absorption fully, mix fast evenly, and material carries out mechanical mill to it when being subjected to thermal response, reduced the required activation energy of material solid state reaction, make material reaction accelerate, temperature required reduction, the reaction times shortens, and the boiler tube capacity can be raised to thousands of liters from number, the usefulness production capacity improves, and energy-saving effect is obvious.
Three: running cost is low.Can see that from this explanation the present invention does not have rotary kiln static and dynamic sealing interface, no rotary kiln, advancing specially of pusher furnace. send. discharge system, alms bowl body between no shredder and the sintering oven, alms bowl frame, transferring equipment such as transporter are not so have the maintenance and the replacing of these parts and equipment, cost saving.Can see that from above-mentioned flow process material is all finished equipment of the present invention from being dosed into out finished product, the labor force has greatly been saved in the repeatedly transfer of no material.Just there be not simultaneously being stained with in a large number of material, the powder pollution of running waste and environment being hanked yet.The present invention adopts the turnover of material disposable integral, can be chosen in paddy electricity period production every day, can reduce half left and right sides power consumption cost.
Four: facility investment is low.The positive level of traditional lithium cell material ferric lithium phosphate production preparation needs grinding plant, transferring equipment, three kinds of agglomerating plants.And the present invention only needs atmosphere grinding and sintering integrated furnace a kind of, so cost of investment is about half of legacy equipment.
Description of drawings
Fig. 1: the cut-away view that atmosphere grinding and sintering integrated furnace in-built electrical well heater eccentric wheel type vibrator of the present invention drives.
Fig. 2: the side diagrammatic sketch that atmosphere grinding and sintering integrated furnace in-built electrical well heater eccentric wheel type vibrator of the present invention drives.
Fig. 3: the cut-away view that atmosphere grinding and sintering integrated furnace electromagnetic vibrator of the present invention drives.
Fig. 4: the cut-away view that atmosphere grinding and sintering integrated furnace Pneumatic vibrator of the present invention drives.
Fig. 5: the synoptic diagram that the external electric heater eccentric wheel type of atmosphere grinding and sintering integrated furnace of the present invention vibrator drives.
Fig. 6: the synoptic diagram of all settling electric heater inside and outside the atmosphere grinding and sintering integrated furnace of the present invention.
Fig. 7: atmosphere grinding and sintering integrated furnace of the present invention adopts the cut-away view that agitator is installed in the external electric heater boiler tube.
Fig. 8: atmosphere grinding and sintering integrated furnace of the present invention adopts the side diagrammatic sketch that agitator is installed in the external electric heater boiler tube.
Fig. 9: grinding and sintering atmosphere all-in-one oven of the present invention adopts calrod to be fixed on the cut-away view of thermal insulation layer inwall boiler tube rotation.
Figure 10: atmosphere grinding and sintering integrated furnace of the present invention adopts calrod to be fixed on the side diagrammatic sketch of thermal insulation layer inwall boiler tube rotation.
Figure 11: atmosphere grinding and sintering integrated furnace of the present invention adopts the cut-away view of combustion gas or the outer heating of fuel oil.
Figure 12: atmosphere grinding and sintering integrated furnace of the present invention adopts the side diagrammatic sketch of combustion gas or the outer heating of fuel oil.
Figure 13: the vibrating device of atmosphere grinding and sintering integrated furnace of the present invention adopts the synoptic diagram of a plurality of vibrators.
Figure 14: atmosphere grinding and sintering integrated furnace of the present invention adopts counterbalance weight is replaced as the balance boiler tube synoptic diagram that quality equates.
Figure 15: atmosphere grinding and sintering integrated furnace of the present invention adopts the synoptic diagram of two equal boiler tubes of quality.
Above-mentioned each figure acceptance of the bid note is respectively: thermal insulation layer 1, temperature drop pipe 2, refractory metal pipe 3, electrothermal tube 4, equalizing feature 5, support spring 6, support 7, rigid connector 8, eccentric wheel type vibrator 9, grinding medium 10, boiler tube 11, lifting device 12, variable-frequency motor 13, resilient coupling 14, steam line 15, gas measuring apparatus 16, thermopair 17, opening for feed 18, inlet mouth 19, water-in 20, water outlet 21, air outlet 22, air valve 23, vacuum pump 24, gas detecting instrument 25, discharge port 26, fire-resistant abrasion-proof filter disc 27, electromagnetic vibrator 28, Pneumatic vibrator 29, fence type agitator 30, seal closure 31, scraper plate 32, bearing 33, bocca 34, combustion chamber 35, cooling water jacket 36, central rotating shaft 37, gap 38, calrod 39.
Embodiment
Below in conjunction with embodiment atmosphere grinding and sintering integrated furnace of the present invention is described further:
Embodiment 1: in-built electrical well heater eccentric wheel type vibrator drives atmosphere grinding and sintering integrated furnace as depicted in figs. 1 and 2, has system of bf body to comprise the boiler tube of sealing, and the feed inlet and outlet on the boiler tube, boiler tube are placed on the elastic support, and system of bf body is with well heater; The atmosphere system comprises porting on the boiler tube and the air valve that links with it, air supply source or vacuum pump; Also have grinding system to comprise mobile grinding medium in the boiler tube, the drive unit that links with boiler tube.
The boiler tube 11 of splendid attire material is the cylindrical container of sealing, available 310s stainless steel or the molybdenum alloy that contains little tantalum, zirconium, chromium are made, and the cross section can be circle, ellipse or Polygons, it is the fire-resistant abrasion-proof alloy vessel, and the boiler tube inwall can be equipped with fire-resistant abrasion-proof inner lining.Several grinding mediums that moves 10 are arranged in the boiler tube, be hardness Mo Shi more than 6.5 grades, above, spheroid, spheroid or the polyhedron of volume below 100 cubic centimetres of fusing point 1000 degree Celsius.Usually select aluminum oxide or zirconia ball, the about boiler tube total volume of ball loadings half.
The well heater that heats in the boiler tube 11, comprise a refractory metal pipe 3 that is placed in boiler tube 11 inner axes line positions, its diameter and boiler tube 11 diameter ratios are 1/3rd to 1/4th, two ends are boiler tube 11 outer walls fixedly, if its length surpasses 1 meter, then can be per 0.5 meter long a support be set be fixed in boiler tube 11 inwalls, according to the heating power requirement, built-in several electrothermal tube 4 tamps sealing by magnesia powder.Such internal heating is provided with heat energy utilization and fully and when avoiding grinding central inertia districts occurs in the boiler tube 11, and boiler tube 11 outer walls are equipped with cooling water jacket 36, have water-in 20 and water outlet 21 on the cooling water jacket, and the cooling water jacket installs thermal insulation layer 1 outward additional.Many places insert thermopair 17 from boiler tube 11 two ends and boiler tube about in the of 11, carry out multi-point temperature measurement, be installed in temperature regulator and electricradiator 4 in the housing, thermopair 17 usefulness flexible cables connect.The support spring 6 that is heated on the elastic support below it of expanding with heat and contract with cold of body of heater 11 is regulated.
To the atmosphere control device that gaseous phase in the boiler tube 11 is controlled, be included in the inlet mouth 19 of side opening on boiler tube 11 1 ends and gas measuring apparatus 16, bomb or the steam line 15 that is attached thereto.Opening is divided into three the tunnel, the one tunnel at boiler tube 11 the other end upside air outlets 22 usefulness four-ways and links with air valve 23; One the tunnel links with vacuum pump 24; One the tunnel links with gas detecting instrument 25.The air valve 23 that links with venting port 22 is to connect more than two, can guarantee to avoid the unexpected malfunctioning of when work single air valve like this and boiler tube 11 outer air is entered cause the atmosphere state in the boiler tube 11 and destroyed.Air valve 23 can adopt vacuum breaker or minute-pressure safety valve, and their pressure can equate.The gas that swollen gas that rises and reaction generate of being heated in the boiler tube 11 during grinding and sintering can be discharged by the air valve 23 that links with venting port 22, but boiler tube 11 outer air can't enter in the boiler tube 11.
For the atmosphere state in the boiler tube 11, can be by closing intake ducting, reach with continuing to vacuumize in the 24 pairs of boiler tubes 11 of vacuum pump that link with the air outlet, also can be without vacuum pump 24, only by reaching to continuing to feed desired gas such as nitrogen, argon gas or hydrogen in the boiler tube 11.Certainly more can be by vacuumizing again logical desired gas earlier, effect can be better several times so repeatedly.
Boiler tube 11 is produced the drive unit of fierce vibration, comprise eccentric wheel type vibrator 9 that is installed in body one side and the variable-frequency motor 13 that links with eccentric wheel type vibrator 9 usefulness resilient couplings 14, variable-frequency motor 13 can adopt water-cooled or oil injection type, link by the frequency transformer in flexible cable line and the housing, change variable-frequency motor 13 rotating speeds by frequency conversion and adjust eccentric wheel type vibrator 9 vibrational frequencies, to seek the optimum resonance effect with boiler tube 11, reach grinding effect and purpose of saving preferably.Shaft coupling is a resilient coupling 14, can reduce the vibration of eccentric wheel type vibrator 9 and expanding with heat and contract with cold to the influence of variable-frequency motor 13 of boiler tube 11.Body 11 opposite sides are furnished with equalizing feature 5, and equalizing feature 5 can be a counterbalance weight.Eccentric wheel type vibrator 9, boiler tube 11, equalizing feature 5 three's axis parallels are on same sea line, they are placed on the elastic support that support spring 6 is housed, the axis of one side support spring 6 is between the gravity axis of boiler tube 11 and eccentric wheel type vibrator 9, the axis of opposite side support spring 6 is between the gravity axis of boiler tube 11 and equalizing feature 5, between eccentric wheel type vibrator 9 and the boiler tube 11; Between equalizing feature 5 and the boiler tube 11, be fixed on the support spring 6 with rigid connector 8.Eccentric wheel type vibrator 9 can be bought by market.
Certainly, the variable-frequency motor 13 in the above-mentioned drive unit also can change common electric machine into, is that relative power consumption is higher relatively poor with vibrating effect.
Just make atmosphere grinding and sintering integrated furnace by such scheme, mouth is expected in sealing after adding material during work, open vacuum pump 24, vacuumize the back and feed protective gas, open drive unit boiler tube 11 is produced exciting, after 10 pairs of materials generation strong wallop of grinding medium and shearing force are ground to suitable degree with raw meal particle size in the boiler tube 11, opening electricradiator 4 heats material simultaneously, material is vibrated in boiler tube 11 and bump and high-speed motion, increase simultaneously, make the quick thermally equivalent of material because of contacting with grinding medium 10 with tube wall; And powerful surging force that the grinding medium 10 of high-speed motion produces and shearing force with macrobead in the material of reuniting shear break up diminish simultaneously that the material of quick thermally equivalent is further levigate, heating finishes 36 water flowings of back cooling water jacket boiler tube 11 is dropped to normal temperature, regulate the lifting device 12 inclination discharge ports 26 on base 7 one ends, vibration boiler tube 11 shakes material and falls in the bag that joins with discharge port 26.There are not boiler tube input and output material section and heating zone static and dynamic sealing interface in the present invention, and disposable feeding intake, so whole boiler tube good airproof performance.Improved grinding, heating, atmosphere control is carried out in the same boiler tube 11 of atmosphere grinding and sintering integrated furnace jointly.Solved to use in the whole production flow process and ground transfer, many complete equipments problems such as heating.
Embodiment 2: the situation that atmosphere grinding and sintering integrated furnace electromagnetic vibrator of the present invention as shown in Figure 3 drives, boiler tube 11 is produced the drive unit of fierce vibration, change the electromagnetic vibrator 28 that is installed in body one side into, frequency transformer is housed in housing, link with the flexible cable line, change the ac frequency of supplying with electromagnetic vibrator 28 by frequency transformer, control vibrational frequency, to reach the optimal vibration grinding effect.Boiler tube 11 opposite sides are furnished with equalizing feature 5, and equalizing feature 5 can be a counterbalance weight.Electromagnetic vibrator 28, boiler tube 11, equalizing feature 5 three's axis parallels are on same sea line, they are placed on the support that support spring 6 is housed, the axis of one side support spring 6 is between the gravity axis of boiler tube 11 and electromagnetic vibrator 28, the axis of opposite side support spring 6 is between the gravity axis of boiler tube 11 and equalizing feature 5, between electromagnetic vibrator 28 and the boiler tube 11; Between equalizing feature 5 and the boiler tube 11, be fixed on the support spring 6 with rigid connector 8.Electromagnetic vibrator 28 can be bought by market.
Embodiment 3: the situation that atmosphere grinding and sintering integrated furnace Pneumatic vibrator of the present invention as shown in Figure 4 drives, boiler tube is produced the drive unit of fierce vibration, change the Pneumatic vibrator 29 that is installed in boiler tube one side into, is furnished with high-pressure pump, airway with flexibility links, by changing gaseous tension and the flow of supplying with vibrator, control vibrational frequency, to reach the optimal vibration grinding effect.The boiler tube opposite side is furnished with equalizing feature 5, and equalizing feature 5 can be a counterbalance weight.Pneumatic vibrator 29, boiler tube 11, equalizing feature 5 three's axis parallels are on same sea line, they are placed on the support that support spring 6 is housed, the axis of one side support spring 6 is between the gravity axis of boiler tube 11 and Pneumatic vibrator 29, the axis of opposite side support spring 6 is between the gravity axis of boiler tube 11 and equalizing feature 5, between Pneumatic vibrator 29 and the boiler tube 11; Between equalizing feature 5 and the boiler tube 11, be fixed on the support spring 6 with rigid connector 8.Pneumatic vibrator 29 can be bought by market.
Certainly, the gaseous tension in this example drives and also can change the liquid pressure driving into, Pneumatic vibrator 29 is changed into the formula vibrator that surges of similar, change tracheae into water pipe, high-pressure pump changes high-pressure hydraulic pump into, and their circulations link, and also can play similar effects.
Embodiment 4: the external electric heater eccentric wheel type of atmosphere grinding and sintering integrated furnace vibrator situation about driving as shown in Figure 5, comprise the electrothermal tube 4 that is placed in the parallel boiler tube 11 axis trend of boiler tube 11 outer walls, temperature drop pipe 2, cover the thermal insulation layer 1 on electrothermal tube 4 and the temperature drop pipe 2, the wheeled vibrator 9 of the boiler tube one lateral deviation heart, boiler tube 11 opposite side equalizing features 5 are between eccentric wheel type vibrator 9 and the boiler tube 11, be fixed on the support spring 6 with rigid connection spare 8 between boiler tube 11 and the equalizing feature 5.
Embodiment 5: the situation of all settling electric heater inside and outside the atmosphere grinding and sintering integrated furnace of the present invention as shown in Figure 6, comprise a refractory metal pipe 3 that is placed in boiler tube 11 inner axes line positions, two ends are boiler tube 11 outer walls fixedly, and built-in several electrothermal tubes 4 tamp sealing by magnesia powder.Be placed in boiler tube 11 outer walls around or the electrothermal tube 4 of parallel boiler tube 11 axis trends, temperature drop pipe 2 covers the thermal insulation layer 1 on electrothermal tube 4 and the temperature drop pipe 2.For the jumbo boiler tube 11 of big caliber, this set rate of heating will be faster.
Embodiment 6: adopt the situation that agitator is installed in the external electric heater boiler tube as Fig. 7 atmosphere grinding and sintering integrated furnace of the present invention shown in Figure 8, the external electric heater of boiler tube be electrothermal tube 4 along furnace tube outer wall around or along the direction of axis line secured in parallel on furnace tube outer wall, along its trend temperature drop pipe 2 is housed 4 of electrothermal tubes, the temperature drop pipe 2 outer thermal insulation layers 1 that install additional.Fence type agitator 30 is housed in the boiler tube, with resilient coupling 14 external water-cooleds or oil injection type variable-frequency motor 13, frequency transformer links in itself and the housing, use variable-frequency motor 13 can reach electric machine soft starting and purpose of saving under the load condition, boiler tube is external well heater, seal closure 31 is equipped with in variable-frequency motor 13 outsides, and variable-frequency motor 13 is fixed in the seal closure 31, and seal closure 31 is fixed on boiler tube 11 1 ends.By the play of bearing, atmosphere state and boiler tube 11 interior atmosphere states are consistent in the seal closure 31.Variable-frequency motor 13 drives agitator 30 high speed rotating during work, and grinding medium in the boiler tube and material are able to high-speed motion and reach grinding and sintering effect.The support spring that is heated on the elastic support below it of expanding with heat and contract with cold of body of heater is regulated.
Certainly variable-frequency motor 13 also can change common electric machine into and adds variator in the present embodiment, only is to use not too convenient and does not have power savings.Shaft coupling also can be solid coupling.Agitator also can be leaf structure.
Embodiment 7: the situation that adopts the boiler tube rotation as Fig. 9 atmosphere grinding and sintering integrated furnace of the present invention shown in Figure 10, boiler tube is equipped with central rotating shaft 37, be placed on the elastic support by bearing 33, central rotating shaft 37 1 ends link by resilient coupling 14 and variable-frequency motor 13, variable-frequency motor 13 can be water-cooled or oil injection type, be connected with frequency-variable controller it is carried out variable frequency regulating speed control, to reach electric machine soft starting and purpose of saving under the load condition, the mobile grinding medium is housed in the boiler tube, scraper plate 32 with the boiler tube axis parallel is housed on the boiler tube inwall, and the boiler tube of high speed rotating and scraper plate make material in the pipe and grinding medium high-speed motion and produce and grind preferably and sintering effect during work.Electrothermal tube 4 and temperature drop pipe 2 are fixed in the outer thermal insulation layer 1 inwall transfixion of boiler tube, leave suitable gap 38 between boiler tube and the thermal insulation layer, and the support spring on the elastic support below it of expanding with heat and contract with cold of the body of heater that is heated is regulated.
Certainly variable-frequency motor 13 also can change common electric machine into and adds variator in the present embodiment, only is to use not too convenient and does not have power savings.
Present embodiment atmosphere is controlled to be, after vacuumizing ventilation in the boiler tube body reach requirement, close intake valve, take off the intake and exhaust flexible pipe, the swollen gas that rises that is heated in the boiler tube during grinding and sintering is discharged by the vacuum breaker or the minute-pressure valve of venting port with the gas that reaction generates, but the air outside the boiler tube can't enter in the boiler tube.
The enterprising exhaust port of boiler tube in the present embodiment is for being similar to intake pipe of washing machine and the water tap interface is such, and band elasticity card pearl and elastic insert set up and take off all union very easily in the interface band exterior bayonet slot on the boiler tube, the interface on the air inlet-outlet pipe.
Embodiment 8: as Figure 11 atmosphere grinding and sintering integrated furnace of the present invention shown in Figure 12 adopt combustion gas or the outer heating of fuel oil situation, boiler tube is equipped with central rotating shaft 37, be placed on the elastic support by bearing 33, on central rotating shaft 37 1 ends variable-frequency motor is housed, scraper plate 32 in whole boiler tube and the boiler tube rotates with central rotating shaft 37, variable-frequency motor can be water-cooled or oil injection type, is connected with frequency-variable controller it is carried out speed regulating control, and furnace tube outer wall is equipped with cooling water jacket 36.
Certainly variable-frequency motor also can change common electric machine into and adds variator in the present embodiment, only is to use not too convenient and does not have power savings.
Present embodiment atmosphere is controlled to be, after vacuumizing ventilation in the boiler tube body reach requirement, close intake valve, take off air inlet-outlet pipe, the swollen gas that rises that is heated in the boiler tube during grinding and sintering is discharged by the vacuum breaker or the minute-pressure valve of venting port with the gas that reaction generates, but the air outside the boiler tube can't enter in the boiler tube.
Enterprising exhaust port of boiler tube in the present embodiment and cooling water jacket 36 enterprising drainage interfaces are and are similar to intake pipe of washing machine and the water tap interface is such, interface band exterior bayonet slot on the boiler tube, band elasticity card pearl and elastic insert set up and take off all union very easily in the supravasal interface.
Embodiment 9: the vibrating device of atmosphere grinding and sintering integrated furnace of the present invention adopts the situation of a plurality of vibrators as shown in figure 13, for jumbo boiler tube, a plurality of eccentric wheel type vibrator 9 usefulness shaft couplings can be together in series with the driving that superposes synchronously of 1 to 2 driven by motor eccentric wheel, also can adopt a plurality of up and down one group of synchronized drive boiler tube of electromagnetic vibrator or Pneumatic vibrator, to increase exciting force.
Embodiment 10: atmosphere grinding and sintering integrated furnace of the present invention as shown in figure 14 adopts the performance that counterbalance weight is replaced as the equal balance body of heater of quality, and equalizing feature can be that counterbalance weight also can change the balance boiler tube that quality equates into, to make full use of vibration force.Eccentric wheel type vibrator 9, boiler tube, balance boiler tube three axis parallel are on same sea line, they are placed on the elastic support that support spring is housed, the axis of one side support spring is between the gravity axis of boiler tube and vibrator, the axis of opposite side support spring is between the gravity axis of boiler tube and balance boiler tube, between vibrator and the boiler tube; Between equalizing feature and the boiler tube, be fixed on the support spring with rigid connector.The mobile grinding medium is housed in the balance boiler tube, on the balance boiler tube heating and atmosphere control device is arranged also certainly.
Embodiment 11: atmosphere grinding and sintering integrated furnace of the present invention as shown in figure 15 adopts the situation of two equal boiler tubes of quality, can be in the horizontal both sides of vibrator 9, and the boiler tube that two quality of arranged parallel equate is with the increase capacity.They are placed on the support that support spring 6 is housed, and the axis of one side support spring is between the gravity axis of boiler tube and vibrator, and the axis of opposite side support spring is between the gravity axis of another boiler tube and vibrator.Body, vibrator connects with rigid connector between the support spring three.The mobile grinding medium is housed in the boiler tube, and these two boiler tubes all have heating and atmosphere control device certainly.
Claims (15)
1. atmosphere grinding and sintering integrated furnace has system of bf body to comprise the boiler tube of sealing,, the feed inlet and outlet on the boiler tube, boiler tube are placed on the elastic support; The atmosphere system comprises porting on the boiler tube and the air valve that links with it, air supply source or vacuum pump; It is characterized in that also having: system of bf body is with well heater, grinding system; Described grinding system comprises grinding medium that moves in the boiler tube and the drive unit that links with boiler tube.
2. atmosphere grinding and sintering integrated furnace as claimed in claim 1, it is characterized in that described drive unit comprises that rigidity is installed in the eccentric wheel type vibrator of furnace tube outer wall, described eccentric wheel type vibrator links by shaft coupling and variable-frequency motor, on the rack-mount or boiler tube of variable-frequency motor.
3. atmosphere grinding and sintering integrated furnace as claimed in claim 1 is characterized in that described drive unit comprises that rigidity is installed in the electromagnetic vibrator of furnace tube outer wall.
4. atmosphere grinding and sintering integrated furnace as claimed in claim 1 is characterized in that described drive unit comprises that rigidity is installed in the Pneumatic vibrator of furnace tube outer wall, and described Pneumatic vibrator links by airway and air pump.
5. atmosphere grinding and sintering integrated furnace as claimed in claim 1, it is characterized in that described drive unit comprises the agitator that is installed in the boiler tube, agitator links by the variable-frequency motor outside shaft coupling and the boiler tube, variable-frequency motor has seal closure outward, variable-frequency motor is fixed in the seal closure, seal closure is fixed on boiler tube one end, and described agitator is fence type or leaf structure.
6. atmosphere grinding and sintering integrated furnace as claimed in claim 1, it is characterized in that described drive unit comprises the variable-frequency motor that is installed on the boiler tube outer support, variable-frequency motor links by shaft coupling and the central rotating shaft that passes boiler tube, and whole boiler tube rotates with central rotating shaft.
7. as claim 1,2,3,4,5 or 6 described atmosphere grinding and sintering integrated furnaces, it is characterized in that described grinding medium is several hardness Mo Shi more than 6.5 grades, above, spheroid, spheroid or the polyhedron of volume below 100 cubic centimetres of fusing point 1000 degree Celsius.
8. as claim 1,2,3 or 4 described atmosphere grinding and sintering integrated furnaces, it is characterized in that described well heater is for settling a refractory metal pipe at boiler tube inner axes line, two ends are furnace tube outer wall fixedly, the inside is placed some electrothermal tubes and is tamped sealing by magnesia powder, and described electrothermal tube is the electrothermal tube of built-in resistor silk.
9. as claim 1,2,3,4 or 5 described atmosphere grinding and sintering integrated furnaces, it is characterized in that described well heater on furnace tube outer wall around or along the electrothermal tube of direction of axis line secured in parallel built-in resistor silk.
10. as claim 1,2,3 or 4 described atmosphere grinding and sintering integrated furnaces, it is characterized in that described well heater is for settling a refractory metal pipe at boiler tube inner axes line, two ends are furnace tube outer wall fixedly, the inside place that some built-in resistor silks tamp the electrothermal tube of sealing by magnesia powder and on furnace tube outer wall around or along the electrothermal tube of direction of axis line secured in parallel built-in resistor silk.
11. as claim 1,5 or 6 described atmosphere grinding and sintering integrated furnaces, it is characterized in that described well heater is the outer calrod of boiler tube, described calrod is fixed on the furnace tube outer wall that does not rotate or around boiler tube the thermal insulation layer that is placed on the support on every side, described calrod is fixed on the thermal insulation layer inwall that does not rotate, and described calrod is the resistive heating rod.
12., it is characterized in that described well heater is for to settle combustion heater or oil heater, described combustion heater or oil heater to comprise the combustion chamber around boiler tube outside boiler tube as claim 1,5 or 6 described atmosphere grinding and sintering integrated furnaces; Evenly be placed in bocca in the combustion chamber and the controller outside the combustion chamber.
13. as claim 1,2,3,4,5 or 6 described atmosphere grinding and sintering integrated furnaces, the opening for feed that it is characterized in that the feed inlet and outlet on the described boiler tube is added with funnel during charging above boiler tube; The discharge port of the feed inlet and outlet on the described boiler tube is below boiler tube, and discharge port is equipped with filter disc, and sealing cover is housed during the feed inlet and outlet inoperative.
14., it is characterized in that on the support of the discharge port the other end, being equipped with fluid pressure type or spiral lifting device as claim 1,2,3,4,5 or 6 described atmosphere grinding and sintering integrated furnaces.
15. as claim 1,2,3,4,5 or 6 described atmosphere grinding and sintering integrated furnaces, it is characterized in that the porting on the described boiler tube and the air valve that links with it in the venting port air valve be series connection more than two.
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| CN2009100456846A CN101786616B (en) | 2009-01-22 | 2009-01-22 | Atmosphere grinding and sintering integrated furnace |
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| CN2009100456846A CN101786616B (en) | 2009-01-22 | 2009-01-22 | Atmosphere grinding and sintering integrated furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297517A (en) * | 2011-06-11 | 2011-12-28 | 王彤宇 | Thermo-motive water cycling system |
| CN102738444A (en) * | 2011-04-13 | 2012-10-17 | 个旧圣比和实业有限公司 | Manufacturing apparatus and method of LiFePO4 / C active substance for lithium-ion battery |
| WO2016045182A1 (en) * | 2014-09-26 | 2016-03-31 | 江苏华东锂电技术研究院有限公司 | Powder sintering device |
| CN111170764A (en) * | 2019-12-31 | 2020-05-19 | 娄底市安地亚斯电子陶瓷有限公司 | Wet hydrogen system and working method thereof |
-
2009
- 2009-01-22 CN CN2009100456846A patent/CN101786616B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738444A (en) * | 2011-04-13 | 2012-10-17 | 个旧圣比和实业有限公司 | Manufacturing apparatus and method of LiFePO4 / C active substance for lithium-ion battery |
| CN102297517A (en) * | 2011-06-11 | 2011-12-28 | 王彤宇 | Thermo-motive water cycling system |
| WO2016045182A1 (en) * | 2014-09-26 | 2016-03-31 | 江苏华东锂电技术研究院有限公司 | Powder sintering device |
| US20170191758A1 (en) * | 2014-09-26 | 2017-07-06 | Jiangsu Huadong Institute Of Li-Ion Battery Co., Ltd. | Powder sintering device |
| CN111170764A (en) * | 2019-12-31 | 2020-05-19 | 娄底市安地亚斯电子陶瓷有限公司 | Wet hydrogen system and working method thereof |
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| Publication number | Publication date |
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| CN101786616B (en) | 2013-04-03 |
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