CN203990552U - Can be used for the vibrated fluidized bed reactor of batch production rare earth fluoride - Google Patents
Can be used for the vibrated fluidized bed reactor of batch production rare earth fluoride Download PDFInfo
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- CN203990552U CN203990552U CN201420369113.4U CN201420369113U CN203990552U CN 203990552 U CN203990552 U CN 203990552U CN 201420369113 U CN201420369113 U CN 201420369113U CN 203990552 U CN203990552 U CN 203990552U
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Abstract
The utility model discloses a kind of vibrated fluidized bed reactor that can be used for batch production rare earth fluoride, comprise feed arrangement, drawing mechanism, fluid bed, vibrator and heater, fluid bed comprises the fluid bed body of tubular, fluid bed bodies top offers the charging aperture being connected with feed arrangement, and the sidewall of fluid bed body offers the discharging opening being connected with drawing mechanism; The bottom of fluid bed body also offers air inlet, is provided with supplied gas and passes and realize the gas distribution grid of even distributing wind in the cavity of fluid bed body, and the top of fluid bed body is also provided with blast pipe; Heater is arranged on outside the coated fluid bed body of fluid bed body; Vibrator is arranged on the outer wall of fluid bed body, and the bottom of fluid bed body is connected on bearing by elastic supporting member for supporting optical member.The utility model can improve fluidization quality, improve mass-and heat-transfer effect, product quality stable homogeneous, and it is high that product is fluoridized rate, and process costs is low.
Description
Technical field
The utility model relates to a kind of fluidized-bed reactor, relates in particular to a kind of vibrated fluidized bed reactor.
Background technology
Rare earth fluoride is the important source material that fusion electrolysis method and calcium metal thermal reduction are produced rare earth metal and alloy, and as the additive of iron and steel and non-ferrous alloy, polishing powder from rare earth additive, fluorescent material etc., purposes is very extensive in addition.Produce the method for rare earth fluoride and mainly contain wet method and the large class of dry method two, due to the long flow path of wet production rare earth fluoride, pollute greatly, product contains the crystallization water and impurity content is high, therefore superseded technique is all progressively listed in home and abroad.It is simple and direct that dry production has technique, pollute little, product is not containing the crystallization water, the advantages such as impurity content is low, but dry production rare earth fluoride all adopts fixed bed process to produce at present, adopting rare earth oxide and hydrogen fluoride or ammonium acid fluoride is raw material, produce in a kind of box type heater discontinuous formula, inner bag in body of heater basic structure is circle or the square container that adopts corrosion resisting alloy to be processed into, container is equipped with electrical heating elements outward, heating element heater adopts flame-proof thermal insulation material parcel again, inner bag has Yishanmen, the charging tray that fills rare earth oxide or rare earth oxide and ammonium acid fluoride mixture can be put into stove, when heating, close fire door.Production process is that rare earth oxide or mixture are heated to after passing into hydrogen fluoride gas reaction a period of time after uniform temperature and make rare earth fluoride, takes out product after temperature is reduced to normal temperature again.The control step of rare earth oxide fluorination reaction is inside and outside diffusion process, but the particle mean size of industrial rare earth oxide is very little, (2～11 μ m), therefore intergranular space is also very little, add upper bed layer for static, cause gas diffusion resistance large, therefore the mass transfer of course of reaction, heat-transfer effect are very poor, and the quality of the rare earth fluoride of producing is difficult to ensure homogeneity, therefore the material height of general fixed bed seldom exceedes 40mm.In addition, intensification, the temperature fall time of heating furnace are long, cause the production cycle not reach more than ten hour to 40 hours not etc., and production process efficiency is low, energy consumption is high.
Existing production technology and equipments is difficult to meet the ever-increasing consumption demand of rare earth metal fluoride, be especially difficult to meet those needs wide in variety, in batches little, the reaction time long, fluoridize rate requires the Production requirement of the heavy rare earth metal fluoride of high (> 99%).
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of and improves fluidization quality, improves mass-and heat-transfer effect, product quality stable homogeneous, product fluoridize the vibrated fluidized bed reactor that can be used for batch production rare earth fluoride that rate is high, process costs is low.
For solving the problems of the technologies described above, the technical scheme the utility model proposes is a kind of vibrated fluidized bed reactor that can be used for batch production rare earth fluoride, comprise feed arrangement, drawing mechanism, fluid bed, vibrator and heater, described fluid bed comprises the fluid bed body of tubular, fluid bed bodies top offers the charging aperture being connected with feed arrangement, and the sidewall of fluid bed body offers the discharging opening being connected with drawing mechanism; The bottom of described fluid bed body also offers air inlet, is provided with supplied gas and passes and realize the gas distribution grid of even distributing wind in the cavity of fluid bed body, and the top of fluid bed body is also provided with blast pipe; Described heater is arranged on outside the coated fluid bed body of fluid bed body; Described vibrator is arranged on the outer wall of fluid bed body, and the bottom of fluid bed body is connected on bearing by elastic supporting member for supporting optical member.That vibrated fluidized bed reactor of the present utility model is particularly suitable for is wide in variety, in batches little, the reaction time long, fluoridize rate requires the Production requirement of the heavy rare earth metal fluoride of high (> 99%).
In above-mentioned vibrated fluidized bed reactor, preferred, described gas distribution grid is along being provided with multilayer in differing heights direction, and gas distribution grid is funnel-cap type structure, and the percent opening of described gas distribution grid is 0.5%～22.5%; Obviously, the blast cap in funnel-cap type structure is all preferably equally distributed.The gas distribution grid of every one deck and the angle of horizontal plane are 0.5 °～5 °.Preferred, described gas distribution grid is two-layer along being provided with in differing heights direction, comprises top tank air distribution grid and lower floor's gas distribution grid; Described top tank air distribution grid and lower floor's gas distribution grid dispose respectively independently charging aperture and discharging opening.
In above-mentioned vibrated fluidized bed reactor, preferably, described discharging opening is opened on the barrel of fluid bed body at its corresponding gas distribution grid low spot place, the external discharge nozzle of discharging opening, and the barrel of the center line of this discharge nozzle and fluid bed body is 45 °～75 ° angles.
In above-mentioned vibrated fluidized bed reactor, preferably, the end setting of described discharge nozzle is three-way shape, and the first outlet of threeway is parallel with barrel, the first outlet connects with drawing mechanism, and the second outlet of threeway is the access hole as dredging discharge nozzle with blind plate shutoff.
In above-mentioned vibrated fluidized bed reactor, preferably, in the cavity of described fluid bed body, be also provided with the porous add-in card for increasing heat exchange area in bed and the grain fluidized quality of improvement, the laying alternate with described gas distribution grid of described porous add-in card, and ensure that the gas distribution grid top of the superiors and undermost gas distribution grid below are provided with described porous add-in card.
In above-mentioned vibrated fluidized bed reactor, preferably, described heater is mainly made up of the heating casing of an encirclement fluid bed body, described heating casing is made up of curved metal shell part, described heating casing and the fluid bed body distance of being separated by, in heating casing, be evenly distributed with electrical heating elements, between the shell wall of heating casing and electrical heating elements, be filled with flame-proof thermal insulation material (for example refractory heat-insulating fiberboard or heat-preservation cotton).The on-fixed end of described heating casing has breach to avoid heating the parts such as thermocouple, the load cell collision arranging on casing and fluid bed body.
In above-mentioned vibrated fluidized bed reactor, preferred, described heater is arranged on the casing pillar that is independent of described bearing by securing member, and described heater and fluid bed body are separated.Described heater is preferably fixed on the semicircle geometrical clamp of heating casing on the casing pillar that is independent of described bearing by securing members such as bolts, described heater and fluid bed body are separated, when maintenance or replacing element, heating casing can be disassembled from casing pillar.
In above-mentioned vibrated fluidized bed reactor, preferred, described vibrator is vibrating motor or the wheeled vibrator of air vortex; At least 350mm of the installation site described heater of distance of described vibrator, the quantity of described vibrator is 2 or 4, and arranges axisymmetricly.
In above-mentioned vibrated fluidized bed reactor, preferably, described drawing mechanism is connected with the discharge nozzle at discharging opening place by rubber flexible connecting piece, the air inlet pipe at described air inlet place is connected with gas transmission pipeline by rubber flexible connecting piece, and described blast pipe is connected with cyclone dust collector by rubber flexible connecting piece.Can avoid like this destruction of convection flow bed body and miscellaneous equipment, pipeline and prevent that the leakage accident causing thus from occurring.
Compared with prior art, the utility model has the advantage of: by adopting vibrated fluidized bed reactor of the present utility model and production technology, can effectively improve the fluidization quality of reaction mass particle, the time of flexible modulation reaction needed, mass transfer, the heat transfer of course of reaction are greatly improved, product quality homogeneous, stable and the rate of fluoridizing is high, and process costs significantly reduces.
Brief description of the drawings
Fig. 1 is the bed body sectional structure schematic diagram of the utility model vibrated fluidized bed reactor.
Fig. 2 is the main TV structure schematic diagram of the utility model vibrated fluidized bed reactor.
Fig. 3 heats casing structural representation in the utility model vibrated fluidized bed reactor.
Marginal data:
1, discharge port; 2, fluid bed body; 3, porous add-in card; 4, gas distribution grid; 41, top tank air distribution grid; 42, lower floor's gas distribution grid; 5, lower floor's feed pipe; 6, upper strata feed pipe; 7, blast pipe; 8, upper strata discharge nozzle; 9, lower floor's discharge nozzle; 10, air inlet pipe; 11, casing pillar; 12, bearing; 13, discharge valve; 14, elastic supporting member for supporting optical member; 15, journal stirrup; 16, vibrator; 17, bolt; 18, heating casing; 19, inlet valve; 20, loading hopper; 21, cyclone dust collector; 22, blind plate; 23, outlet valve; 24, rubber flexible connecting piece; 25, semicircle geometrical clamp; 26, flame-proof thermal insulation material; 27, electrical heating elements; 28, semicircle metal casing.
Detailed description of the invention
For the ease of understanding the utility model, below in connection with specification drawings and specific embodiments, the utility model is done more comprehensively, described meticulously, but protection domain of the present utility model is not limited to following concrete embodiment.
It should be noted that, in the time that a certain element is described on " be fixed on, be fixed in, be connected in or be communicated in " another element, it can be directly fixing, affixed, connect or be communicated with on another element, can be also by other intermediate connectors indirectly fixing, affixed, connection or connection on another element.
Unless otherwise defined, all technical terms of hereinafter using are identical with the implication that those skilled in the art understand conventionally.Technical term used herein, just in order to describe the object of detailed description of the invention, is not to be intended to limit protection domain of the present utility model.
Apart from special instruction, various reagent, the raw material of using in the utility model is the commodity that can buy from the market or the product that can make by known method.
A multi layer vibrating fluid bed reactor for batch production rare earth fluoride of the present utility model, comprises feed arrangement, drawing mechanism, fluid bed, vibrator 16 and heater as shown in FIG. 1 to 3; Fluid bed comprises the fluid bed body 2 of approximate circle tubular, and the top of fluid bed body 2 is a cone tubular, and bottom is a back taper tubular, and mid-section body is cylindric.Fluid bed body 2 tops offer be connected with feed arrangement containing rare earth material feeding mouth, charging aperture place connects feed pipe; On the sidewall of fluid bed body 2, offer the rare earth fluoride product discharging opening being connected with drawing mechanism, discharging opening place connects discharge nozzle.The bottom of fluid bed body 2 also offers fluorinated hydrogen air inlet, and air inlet place is connected with air inlet pipe 10.In the cavity of fluid bed body 2, be provided with the gas distribution grid 4 that passes and realize even distributing wind for fluorinated hydrogen, the top of fluid bed body 2 also offers blast pipe 7, and blast pipe 7 places are connected with a cyclone dust collector 21 for dedusting.The bottom of fluid bed body 2 is provided with journal stirrup 15, for example, by the elastic supporting member for supporting optical member 14 (support spring) of journal stirrup 15 belows fluid bed body 2 is installed on bearing 12, and bearing 12 can be three leg formulas or four leg formula bearings.
As shown in Figure 1, in the vibrated fluidized bed reactor of present embodiment, gas distribution grid 4 is two-layer along being provided with in the differing heights direction of fluid bed body 2 inner chambers, comprises top tank air distribution grid 41 and lower floor's gas distribution grid 42; Top tank air distribution grid 41 and lower floor's gas distribution grid 42 dispose respectively independently charging aperture and discharging opening, and corresponding, top tank air distribution grid 41 and lower floor's gas distribution grid 42 dispose each self-corresponding upper strata feed pipe 6 and lower floor's feed pipe 5; Top tank air distribution grid 41 and lower floor's gas distribution grid 42 also dispose each self-corresponding upper strata discharge nozzle 8 and lower floor's discharge nozzle 9.In this detailed description of the invention, top tank air distribution grid 41 and lower floor's gas distribution grid 42 are funnel-cap type structure, and the percent opening of each gas distribution grid is 0.5%～25%, and the blast cap in funnel-cap type structure is to be all evenly distributed on gas distribution grid 4.The gas distribution grid 4 of every one deck is 0.5 °～5 ° with the angle of horizontal plane, and graininess reaction mass can be moved to discharging opening fluosolids from charging aperture.
As shown in Figure 1, in the above-mentioned vibrated fluidized bed reactor of this detailed description of the invention, in the cavity of fluid bed body 2, be also provided with the porous add-in card 3 (generally offering the larger gross porosity in aperture) for increasing heat exchange area in bed and the grain fluidized quality of improvement, porous add-in card 3 laying alternate with gas distribution grid 4, and gas distribution grid 4 tops and undermost gas distribution grid 4 belows that ensure the superiors are provided with a porous add-in card 3, specific to be provided with three porous add-in cards 3 in present embodiment in differing heights aspect.
As shown in Figure 2, in the above-mentioned vibrated fluidized bed reactor of this detailed description of the invention, heater is arranged on outside the coated fluid bed body 2 of fluid bed body 2; Heater is mainly made up of the heating casing 18 of an encirclement fluid bed body 2, and heating casing 18 is made up of the circular metal casing 28 of two halves, heating casing 18 and fluid bed body 2 distance of being separated by.As shown in Figure 3, in heating casing 18, be evenly distributed with electrical heating elements 27, between the shell wall of heating casing 18 and electrical heating elements 27, be filled with flame-proof thermal insulation material 26 (for example refractory heat-insulating fiberboard).The on-fixed end of heating casing 18 has breach to avoid heating the parts such as thermocouple, the load cell collision arranging on casing 18 and fluid bed body 2.The heater of this detailed description of the invention is by bolt 17 securing members such as grade, the semicircle geometrical clamp 25 of heating casing 18 to be fixed on the casing pillar 11 that is independent of bearing 12, and heater and fluid bed body 2 are separated.When maintenance or replacing element, heating casing 18 can be disassembled from casing pillar 11.
In the vibrated fluidized bed reactor of this detailed description of the invention, vibrator 16 is arranged on the outer wall of fluid bed body 2, and vibrator 16 is vibrating motor or the wheeled vibrator of air vortex; The installation site of vibrator 16 is apart from least 350mm of heater, to avoid operating ambient temperature to exceed the prescribed limits of vibrator.The quantity of vibrator 16 can be 2 or 4, and arranges axisymmetricly.Based on the needs of oscillatory type fluidized reaction, fluid bed body 2 all adopts rubber flexible connecting piece 24 to be connected with the interface of the external components such as drawing mechanism, inlet duct, exhaust apparatus.For example drawing mechanism is connected with the discharge nozzle at rare earth fluoride product discharging opening place by rubber flexible connecting piece 24, the air inlet pipe 10 at air inlet place is connected with gas transmission pipeline by rubber flexible connecting piece 24, and blast pipe 7 is connected with cyclone dust collector 21 by rubber flexible connecting piece 24.
In the vibrated fluidized bed reactor of this detailed description of the invention, on upper strata feed pipe 6 and lower floor's feed pipe 5, be all connected with inlet valve 19 and loading hopper 20; Discharging opening is specifically opened on the barrel of fluid bed body 2 at each gas distribution grid 4 low spot places, the center line of upper strata discharge nozzle 8 and lower floor's discharge nozzle 9 is all 45 °～75 ° angles with the barrel of fluid bed body 2, the end of upper strata discharge nozzle 8 and lower floor's discharge nozzle 9 all arranges and is three-way shape, and the first outlet of threeway is parallel with barrel, the first exit is provided with outlet valve 23, and connect with the drawing mechanism (this detailed description of the invention can adopt conveying worm) for discharging, the second outlet of threeway is the access hole as dredging discharge nozzle with blind plate 22 shutoff.
In the vibrated fluidized bed reactor of this detailed description of the invention, the back taper tubular bottommost of fluid bed body 2 is provided with discharge port 1, is equiped with discharge valve 13 on discharge port 1, for the powder at the bottom of the fluidized bed of bleeding is discharged.
Adopt the double-deck vibrated fluidized bed reactor of this detailed description of the invention to produce the method for rare earth fluoride, comprise the following steps:
(1) first in fluid bed body 2, add a certain amount of target product rare earth fluoride grain products by upper strata feed pipe 6 and lower floor's feed pipe 5, make rare earth fluoride fill up upper strata discharge nozzle 8 and lower floor's discharge nozzle 9, then stop charging, change and add a certain amount of rare earth material that contains as raw material, after rare earth oxide is kept certain height on two-layer gas distribution grid 4, stop charging, close inlet valve 19 and discharge valve 13.Starting to start heater is heated to the gas distribution grid 4 of fluid bed body 2 interior settings more than 300 DEG C;
(2) start evenly to add containing rare earth material in vibrated fluidized bed reactor by feed arrangement; Be at least one in rare earth oxide particles, rare earth carbonate particle containing rare earth material, comprise at least one in cerium, neodymium, praseodymium, lanthanum, samarium, europium, dysprosium, gadolinium, holmium, erbium, thulium, yttrium, ytterbium, scandium, terbium containing rare earth material rare earth elements; Enter into the cavity of fluid bed body 2 by containing rare earth material feeding mouth containing rare earth material;
(3) in fluid bed body 2, blast the hydrofluoric reacting gas that contains after preheating by the air inlet pipe 10 of fluorinated hydrogen, containing hydrofluoric reacting gas is pure hydrogen fluoride gas or the mist for hydrogen fluoride and nitrogen;
(4) Vibration on Start-up device 16, controlling rotational frequency is 3000～35000 beats/min, the vibration force that Unit Weight equipment applies is 30～100N/kg; Now, contain after rare earth material runs up to certain bed height and start to occur fluidisation; The quantity of fluid bed body 2 interior fluosolids equates (two-layer) with the number of plies of the gas distribution grid 4 of setting; Meanwhile, the hydrofluoric reacting gas that contains after preheating blasts from the bottom of fluid bed body 2, and ascension from lower to upper, through fully contacting with the rare earth material solid particle that contains of top after the gas distribution grid of each layer 4, under the comprehensive function of the exciting force producing at vibrator 16 and gas drag force, obtain good fluidization quality containing rare earth material solid particle; Each fluosolids containing rare earth material by with contain hydrofluoric reacting gas generation fluorination reaction, generate rare earth fluoride product.
(5) the required heat of reaction of the interior reaction mass of fluid bed body 2 is provided by the electrical heating elements 27 heating in casing 18, heat cylindrical shell by heating casing 18 and conduct to again reaction mass, reaction mass is heated to after uniform temperature, hydrogen fluoride gas reacts with rare earth oxide or rare earth carbonate and generates rare earth fluoride, the rare earth fluoride generating flows out from rare earth fluoride product discharging opening corresponding to each fluidized-bed layer, now open outlet valve 23, product is entered to drawing mechanism, send into equably finished product bin; After discharging is complete, close outlet valve 23 and stop vibration, reopen inlet valve 19 and feed in raw material.Reacted residual gas is discharged from the blast pipe 7 at fluid bed body 2 tops, and enters cyclone dust collector 21, the particle that gas recovery is carried secretly; Gas after dedusting enters after gas recovery device reclaims hydrogen fluoride and discharges; A particle at the bottom of leaking to bed by bottom gas distribution grid 4 on a small quantity, can regularly be discharged and be reclaimed by discharge valve 13.
In the time that vibrated fluidized bed reactor realizes the steady production of rare earth fluoride and discharging, control temperature in fluid bed body 2 at 500 DEG C～650 DEG C; Controlling the time of staying of reaction mass in fluid bed body 2 is 60min～480min, when arriving after the predetermined reaction time, stops passing into the gas of fluorinated hydrogen, passes into a small amount of nitrogen and maintains an interior pressure-fired, avoids air to enter bed.In production, be arranged on the variation of temperature in the thermocouple measurement bed on fluid bed body 2 by multiple spot, and by change heat the interior electrical heating elements 27 of casing 18 heating power keep bed in temperature within the specific limits.Measure the pressure drop of each section in bed by the load cell of installing on bed body, according to pressure drop adjusting gas flow to control the stable of gas-solid fluidized course of reaction.
Practice shows, improve the fluidization quality of particle and the gas-solid fluidized course of reaction of many beds by vibration, in the utility model, the mass transfer of course of reaction, heat transfer are greatly improved, production efficiency significantly improves, uniform in quality and the rate of fluoridizing high (> 99%), cost significantly reduces.
Claims (10)
1. one kind can be used for the vibrated fluidized bed reactor of batch production rare earth fluoride, comprise feed arrangement, drawing mechanism, fluid bed, vibrator and heater, it is characterized in that: described fluid bed comprises the fluid bed body of tubular, fluid bed bodies top offers the charging aperture being connected with feed arrangement, and the sidewall of fluid bed body offers the discharging opening being connected with drawing mechanism; The bottom of described fluid bed body also offers air inlet, is provided with supplied gas and passes and realize the gas distribution grid of even distributing wind in the cavity of fluid bed body, and the top of fluid bed body is also provided with blast pipe; Described heater is arranged on outside the coated fluid bed body of fluid bed body; Described vibrator is arranged on the outer wall of fluid bed body, and the bottom of fluid bed body is connected on bearing by elastic supporting member for supporting optical member.
2. vibrated fluidized bed reactor according to claim 1, is characterized in that: described gas distribution grid is along being provided with multilayer in differing heights direction, and gas distribution grid is funnel-cap type structure, and the percent opening of described gas distribution grid is 0.5%～22.5%; The gas distribution grid of every one deck and the angle of horizontal plane are 0.5 °～5 °.
3. vibrated fluidized bed reactor according to claim 2, is characterized in that: described gas distribution grid is two-layer along being provided with in differing heights direction, comprises top tank air distribution grid and lower floor's gas distribution grid; Described top tank air distribution grid and lower floor's gas distribution grid dispose respectively independently charging aperture and discharging opening.
4. according to the vibrated fluidized bed reactor described in claim 1,2 or 3, it is characterized in that: described discharging opening is opened on the barrel of fluid bed body at its corresponding gas distribution grid low spot place, the external discharge nozzle of discharging opening, the barrel of the center line of this discharge nozzle and fluid bed body is 45 °～75 ° angles.
5. vibrated fluidized bed reactor according to claim 4, it is characterized in that: the end setting of described discharge nozzle is three-way shape, and the first outlet of threeway is parallel with barrel, the first outlet connects with drawing mechanism, and the second outlet of threeway is the access hole as dredging discharge nozzle with blind plate shutoff.
6. according to the vibrated fluidized bed reactor described in claim 1,2 or 3, it is characterized in that: in the cavity of described fluid bed body, be also provided with the porous add-in card for increasing heat exchange area in bed and the grain fluidized quality of improvement, the laying alternate with described gas distribution grid of described porous add-in card, and ensure that the gas distribution grid top of the superiors and undermost gas distribution grid below are provided with described porous add-in card.
7. according to the vibrated fluidized bed reactor described in claim 1,2 or 3, it is characterized in that: described heater is mainly made up of the heating casing of an encirclement fluid bed body, described heating casing is made up of curved metal shell part, described heating casing and the fluid bed body distance of being separated by, in heating casing, be evenly distributed with electrical heating elements, between the shell wall of heating casing and electrical heating elements, be filled with flame-proof thermal insulation material.
8. according to the vibrated fluidized bed reactor described in claim 1,2 or 3, it is characterized in that: described heater is arranged on the casing pillar that is independent of described bearing by securing member, described heater and fluid bed body are separated.
9. according to the vibrated fluidized bed reactor described in claim 1,2 or 3, it is characterized in that: described vibrator is vibrating motor or the wheeled vibrator of air vortex; At least 350mm of the installation site described heater of distance of described vibrator, the quantity of described vibrator is 2 or 4, and arranges axisymmetricly.
10. according to the vibrated fluidized bed reactor described in claim 1,2 or 3, it is characterized in that: described drawing mechanism is connected with the discharge nozzle at discharging opening place by rubber flexible connecting piece; The air inlet pipe at described air inlet place is connected with gas transmission pipeline by rubber flexible connecting piece; Described blast pipe is connected with cyclone dust collector by rubber flexible connecting piece.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170039A (en) * | 2015-10-14 | 2015-12-23 | 上海立得催化剂有限公司 | Single-gas-phase fluidized bed reactor discharging openings applicable to multiregion polyreaction |
| CN112871081A (en) * | 2021-03-08 | 2021-06-01 | 清陶（昆山）自动化装备有限公司 | Anode material coating device and coating method |
| CN114797690A (en) * | 2022-05-24 | 2022-07-29 | 清远市鑫辉化工有限公司 | Novel white carbon black modification equipment |
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2014
- 2014-07-04 CN CN201420369113.4U patent/CN203990552U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170039A (en) * | 2015-10-14 | 2015-12-23 | 上海立得催化剂有限公司 | Single-gas-phase fluidized bed reactor discharging openings applicable to multiregion polyreaction |
| CN112871081A (en) * | 2021-03-08 | 2021-06-01 | 清陶（昆山）自动化装备有限公司 | Anode material coating device and coating method |
| CN114797690A (en) * | 2022-05-24 | 2022-07-29 | 清远市鑫辉化工有限公司 | Novel white carbon black modification equipment |
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