CN2656406Y - Vertical calcining furnace for preparing kaolin powder - Google Patents
Vertical calcining furnace for preparing kaolin powder Download PDFInfo
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- CN2656406Y CN2656406Y CN 200320111094 CN200320111094U CN2656406Y CN 2656406 Y CN2656406 Y CN 2656406Y CN 200320111094 CN200320111094 CN 200320111094 CN 200320111094 U CN200320111094 U CN 200320111094U CN 2656406 Y CN2656406 Y CN 2656406Y
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Abstract
A vertical calcinatory of kaolinite powder relates to a calcination equipment for kaolinite stored in a qualified measures. The prior art provides an indirectly-heating rotary kiln which is characterized in broken and deformed furnace drum, surface oxidation and hardy yield increase. The utility model provides a vertical calcinatory of kaolinite powder which comprises a body, a chamber, a hollow main shaft and a transmission system of the main shaft, wherein the main shaft is centrally divided into twelve to fourteen sections to correspond to the chamber; Each section is provided with four hollow rakes rods wherein a longitudinal isolating sheet is arranged along a diameter extension, each rakes rod provided with three to five rake teeth; Each section is provided inside with a cold-air guide block into which an extensional part of the isolating sheet in the rakes rod is plugged; An odd isolating layer between the chambers is provided with an annular gap along an external edge of the main shaft; An even isolating layer is equipped with a hole which is positioned at a site near the kaolinite wall and connected with the inferior chamber; Every chamber is equipped with an electric heating body; A hollow shaft is connected with an externally-equipped draft fan; The main shaft rotates at a speed of one to two rpm. The utility model has the advantages of high yield (ten thousand tons to fifty thousand tons/year), high quality, novel design, logic structure, convenient loading and unloading and reliable operation.
Description
Technical field:
The utility model belongs to the processing to nonmetalliferous ore, relates to a kind of calciner of high-quality coal series kaolin rock.
Background technology:
The high-quality coal series kaolin rock distributes and spreads all over 20 provinces of China, and proven reserve are 15.73 hundred million tons, and amount of fine quality is big, is most characteristic in the world resource.After kaolinite is pulverized calcining, can produce the calcined kaolin of many grades, be widely used in tens kinds of industries such as papermaking, paint, coating, pottery, electric pottery, rubber, plastics, cable, petrochemical industry, daily use chemicals, medicine.Along with the growth of economy, demand increases day by day both at home and abroad.Large-scale paper mill for example, the demand to coating level and filler level calcined kaolin can reach tens0000 tons/year.This just requires the enterprise of calcined kaolin must improve grade, go up scale.The producer of domestic several bigger production calcined kaolin, actual output generally only is 1～20,000 ton/year (target output 3～50,000 ton/year).And external U.S. for example, tens0000 tons/year at least of the output of calcined kaolin manufacturing enterprise, in big hundreds of thousands of ton/year, what have reaches 1,000,000 tons/year.With regard to calcined kaolin, enterprise's scale that will improve grade, calcining is a critical process, calcining furnace is a key equipment.The calcining furnace that at present domestic above-mentioned several companies use is the rotary kiln of indirect heating, calcined kaolin powder, each furnace output 0.65～1.1 ten thousand ton/year.From service condition,, all there is following problem in the use: stove tube weld cracking, the distortion of stove tube, stove tube surface metal oxidation corrosion decortication etc. no matter be import equipment or home-made.A rotary kiln of producing ten thousand tons per year, stove tube internal diameter is 2.5 meters, and length is 20 meters, wants productivity gain, and certainly will will add large diameter increases length.Since stove tube material furnace temperature up to 1000 ℃ situation under, intensity has descended a lot, pivot distance is bigger in addition, the stove tube can be heavy at material, under the deadweight effect, aggravate barrel distortion in the rotation that does not stop, even ftracture.So the output of indirect heating rotary kiln increases again suitable difficulty is arranged.Chinese patent: 02228222.X discloses a kind of " kaolin superfine powder calcining furnace ", and it is different with rotary kiln, and its cylindrical shell does not change, and the stir shaft band in the cylindrical shell paddle rotating, and constantly stirs kaolin powder, forms dynamic calcining.This kaolin superfine powder calcining furnace is the indirect heating horizontal type structure, exist following shortcoming: at first, because be indirect heating, but undeclared how the heating, because stove tube temperature subregion, more than one of stove district, and burner can not only be aimed at the fixedly place of cylindrical shell, cylindrical shell is motionless, then require burner to move, to keep each stove district temperature even, cylindrical shell is not burnt, and difficulty is very big in design for this.In addition, do not have cooling in the paddle, do not have thermal insulation protection outward,, under 1000 ℃ of high temperature, stir stressedly, can produce distortion yet because of intensity is low even adopt nickel-base alloy.Stove tube itself in use also can Yin Wendu, load and produce distortion, cracking, oxidation corrosion decortication.Therefore, will make this calcining furnace cisco unity malfunction.The body of heater size is big more, and above problem is serious more.
Summary of the invention:
The purpose of this utility model is to overcome the shortcoming that prior art exists, and provides a kind of kaolinite powder vertical calcining furnace, has the output height, and quality product is excellent, furnace design novelty, rational in infrastructure, easy to loading and unloading, advantage such as reliable.
To achieve these goals, the utility model provides a kind of kaolinite powder vertical calcining furnace, comprising: be bearing in the vertical body of heater on the steel construction; Be separated into several furnace chambers with the refractory materials interlayer from top to bottom in the stove; Be provided with hollow main shaft in the middle of the body of heater, be divided into three parts: main shaft top, main shaft middle part, main shaft bottom, the main shaft middle part is equipped with raking arm corresponding to each furnace chamber, on each raking arm rake teeth is installed, the main shaft bottom is connected with transmission system, and locate by sliding surface bearing on main shaft top; Upper of furnace body is provided with opening for feed, and the bottom is provided with discharge opening; Furnace roof is equipped with fly-ash separator; Quill shaft is communicated with the peripheral hardware blower fan.
Described main shaft middle part is divided into 12～14 joints corresponding to furnace chamber, 4 hollow raking arms of uniform installation on every joint, install 3～5 on each raking arm and make rake teeth with heat-stable ceramic, be provided with vertical inhibiter film along diametric(al) in the raking arm, it is divided into two Room, every joint main shaft is adorned a cold wind orienting lug in the middle part, orienting lug is a cruciform, there are two big sallop screens at its place, diagonal angle, top, and there are two little sallop screens at another place, diagonal angle, bottom, and the barrier sheet sponson in the raking arm inserts in the orienting lug; Odd number interlayer between the furnace chamber leaves the circular clearance along the main shaft outer rim in the middle of stove, the even numbers interlayer is provided with a hole at place, close furnace wall every 120 degree and communicates with following furnace chamber; In each furnace chamber electric heating element is housed.
Described every joint main shaft middle part is made up of metalwork, outer instlated tubular, intermediate thermal insulating layer, the reinforcing section of 4 raking arm open holess is a concave inward structure on the metalwork, intermediate thermal insulating layer is rolled in outward on the outer wall of metalwork, and outer instlated tubular makes the prefabricated component integral assembling in the outside.
Described intermediate thermal insulating layer is the pure aluminium silicate felt; Outer instlated tubular is a lightweight refractory.
4 raking arms are installed at described every joint main shaft middle part, are that raking arm is penetrated in the open holes, and the raking arm end increases a bit of sleeve pipe, and fixes with anti-rotation pin and raking arm, and pin is stuck in the groove of offering in the hole, again raking arm fixed cap clamp sleeve.
In the described hollow raking arm raking arm metalwork is arranged; the two-layer thermal insulation protection of peripheral hardware; the raking arm metalwork adopts the heating resisting metal rotational casting to form; the peripheral hardware end cap; the raking arm intermediate thermal insulating layer is senior pure aluminium silicate felt; the outer instlated tubular of raking arm is the prefabricated component that heat-resisting lightweight refractory is made, and is placed with support ring between intermediate thermal insulating layer and the outer instlated tubular, and uses the anti-rotation fixed by nut.
Described main shaft bottom is connected with transmission system, be through shaft coupling, reduction box transmission bevel-gear sett by motor, the metal shaft of drive shaft bottom again, metal shaft is supported on the bearing with cross roller globe bearing by the main shaft backing plate, and bearing is supported on the ground by bearing base, backing plate, back up pad.
Described refractory materials interlayer is to form with heat-resisting lightweight refractory cast; Described even numbers interlayer adopts labyrinth seal with the main shaft outer rim in the middle of stove.
Described electric heating element is installed in below the last interlayer in the furnace chamber and down above the interlayer.
It is that the formula pulse dust collector is inserted on a kind of side that described furnace roof is equipped with fly-ash separator.
Described quill shaft is communicated with the peripheral hardware blower fan, and its blower fan is a vacuum fan.
As use Sweet natural gas, heavy oil as the energy, need install combustion device on the outside furnace wall of 2-3 furnace chamber below.
Calcining furnace of the present utility model is a vertical structure, calcining kaolinite raw ore powder, and the energy is electric heating (indirect heating), also can adopt Sweet natural gas, heavy oil (direct heating).Furnace charge falls into first furnace chamber outside by the top filling mouth, past middle by the rake teeth rake, fall into next furnace chamber inboard through the circular clearance, harrow the outside by rake teeth by the inside again, fall into next furnace chamber, furnace charge walks to bend font, constantly falls into next furnace chamber by a last furnace chamber, up to by the discharge opening discharging.Because the electric heating element of different capacity is installed according to processing requirement in each furnace chamber, furnace charge through the calcining zone of differing temps, is sintered into finished product in process from top to bottom.Because pulse dust collector is installed, the exhausting amount is adjustable, furnace gas is sluggish flow from bottom to top, at the place that communicates of furnace chamber up and down, wind speed strengthens, and makes furnace charge form the suspended state calcining, in then calcining under rake teeth promotes of the material on the furnace chamber interlayer, realize temperature, time, the controlled dynamic calcining of atmosphere, improved quality product.Because novel cold wind orienting lug has been adopted in main shaft middle part design, rationally is provided with barrier sheet in the raking arm, and the indent reinforcing structure of main shaft and raking arm open holes and mode of connection cleverly, not only make raking arm obtain pressure and cool off, and made things convenient for installing/dismounting.Because main shaft middle part and raking arm have all been taked the double thermal insulation protection, rake teeth is the high-strength temperature-resistant pottery, is exposed to the member in the furnace chamber high-temperature zone like this, and refractoriness is enough.Because good heat insulation, force cooling, the heating resisting metal pipe in the raking arm following temperature in working order will significantly reduce, and metal tube has good intensity and prevents to be out of shape like this, has guaranteed the equipment reliability of operation.Because adopt the vertical suspending calcining, powder material is well-dispersed in the hot gas flow, and the air-flow of doing turbulent motion is fully contacted with solid materials, and bigger heat exchange area and speed of relative movement are arranged.5～8 meters of internal diameters, the vertical calcining furnace that stove is high 17～20 meters can be produced 1～50,000 ton of calcined kaolin per year, and therefore, the utility model also has the high advantage of output.The vertical calcining furnace of kaolinite powder is the ideal equipment of the high-grade calcined kaolin of large-scale production.
The utility model will be elaborated with reference to accompanying drawing in conjunction with the embodiments, so that its purpose, feature and advantage are had deep understanding.
Description of drawings:
Fig. 1 is the structural representation of the vertical calcining furnace of a kind of kaolinite powder;
Fig. 2 is the assembled front view at a joint main shaft middle part;
Fig. 3 is an A-A sectional view among Fig. 2;
Fig. 4 is the vertical view of Fig. 2;
Fig. 5 is the front view of cold wind orienting lug;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is the assembly structure synoptic diagram of raking arm;
Fig. 8 is the vertical view of Fig. 7;
Fig. 9 is a B-B sectional view among Fig. 7;
Figure 10 is the assembled front view of main shaft bottom.
Embodiment:
As shown in Figure 1, the vertical calcining furnace of a kind of kaolinite powder, comprise: be bearing in the vertical body of heater 12 on the steel construction 1, be separated into several furnace chambers 13 with refractory materials interlayer 21 from top to bottom in the stove, be provided with hollow main shaft in the middle of the body of heater, be divided into three parts: main shaft top 7, main shaft middle part 9, main shaft bottom 10, main shaft middle part 9 is equipped with hollow raking arm 18 corresponding to each furnace chamber 13, rake teeth 34 is installed (referring to Fig. 7 on each raking arm, 8), main shaft bottom 10 is connected with transmission system, and main shaft top 7 is by sliding surface bearing 6 location, upper of furnace body is provided with charging opening 3, the bottom is provided with discharge opening 40, and furnace roof is equipped with fly-ash separator 5, and quill shaft is communicated with the peripheral hardware blower fan.
Described hollow main shaft middle part 9 is divided into 12 joints (also can be divided into 14 joints) corresponding to furnace chamber 13,4 hollow raking arms 18 of uniform installation on every joint, 3～5 (present embodiment is 3) rake teeths 34 are installed on each raking arm, be provided with vertical inhibiter film 39 along diametric(al) in the raking arm, it is divided into two Room (referring to Fig. 7,8,9); Adorn a cold wind orienting lug 26 in every joint main shaft middle part 9, orienting lug is a cruciform, there are two big sallop screens at its place, diagonal angle, top, and there are two little sallop screens at another place, diagonal angle, bottom, and barrier sheet 39 sponsons insert in the orienting lug (referring to Fig. 2,3,4,5,6) in the raking arm; Odd number interlayer between the adjacent furnace chamber, in the middle of stove, leave circular clearance 41 along the main shaft outer rim, the even numbers interlayer is provided with a hole at place, close furnace wall every 120 degree and communicates with following furnace chamber, and the even numbers interlayer is middle and main shaft outer rim employing labyrinth seal at stove, in case furnace charge is by falling in the middle of the stove; Electric heating element 19 is housed in each furnace chamber.
Shown in Fig. 2,3,4,5,6, described every joint main shaft middle part 9 is made up of metalwork 23, outer instlated tubular 24, intermediate thermal insulating layer 25, the reinforcing section 44 of 4 raking arm open holess is a concave inward structure on the metalwork 23, rather than general evagination form, also sample makes the two-layer thermofin of outside, main shaft middle part be easy to install, its intermediate thermal insulating layer 25 can beyond be rolled on the outer wall of metalwork 23, outer instlated tubular 24 can make prefabricated component when brickwork integral assembling in the outside.Described intermediate thermal insulating layer 25 is senior pure aluminium silicate felt; Outer instlated tubular 24 is a lightweight refractory.
Adorn a cold wind orienting lug 26 in described every joint main shaft middle part 9, and be connected with raking arm metalwork 29, be in the sponson insertion orienting lug with barrier sheet in the raking arm 39, the cooling air that is come by the main shaft bottom will import a side in the raking arm by the orienting lug bottom like this, get back to orienting lug top by opposite side again, upwards flow then, the top and the bottom of orienting lug are spaced, cold wind must be up through raking arm ability like this, and raking arm will be forced to cooling.
4 raking arms 18 are installed at described every joint main shaft middle part 9, be that raking arm is penetrated in the open holes, set up a bit of reinforcing sleeve 38 in raking arm metalwork 29 ends, and fix with anti-rotation pin 28 and metalwork, pin is stuck in the groove of offering in the hole, and raking arm just can not rotate like this, uses raking arm fixed cap 27 clamp sleeves 38 again, raking arm can not move in the horizontal direction like this, forms inboardend.
Shown in Fig. 7,8,9; in the described hollow raking arm 18 raking arm metalwork 29 is arranged; the two-layer thermal insulation protection of peripheral hardware; raking arm metalwork 29 adopts the heating resisting metal rotational casting to form; and end cap 31 arranged; be provided with vertical inhibiter film 39 along diametric(al) in the raking arm metalwork, it be divided into two Room, so that cold wind flows to outflow in raking arm.The two-layer thermal insulation protection of metalwork outside; raking arm intermediate thermal insulating layer 36 is senior pure aluminium silicate felt; the prefabricated component that the outer instlated tubular 32 of raking arm is made for heat-resisting lightweight refractory encases metalwork with intermediate isolating layer 36 earlier during installation, puts support ring 37 again; in case instlated tubular 32 sinks; put instlated tubular 32 then, and, be screwed on the screw that is welded on the raking arm with the anti-rotation nut 33 that corundum is made; it act as and prevents to scurry outside the instlated tubular 32 and rotate, and with the corundum pin instlated tubular end cap 30 is installed again.
Described rake teeth 34 materials are the high-strength temperature-resistant pottery, are connected on the raking arm with corundum screw 35.
Shown in Fig. 1,10, described main shaft bottom 10 is connected with transmission system, be by the metal shaft 42 (cone gear with metal shaft with thrust screw 43 be connected) of motor 17 through shaft coupling 16, reduction box 15 transmission bevel-gear setts 14 drive shaft bottoms, make main shaft slowly rotation (about 1～2 rev/min) in calcination process, rotating speed is adjustable.Metal shaft 42 is supported on the bearing with cross roller globe bearing 47 by main shaft backing plate 52, and there is tegillum 45 the metal shaft lower end, and bearing is supported on the ground by bearing base 49, backing plate 50, back up pad 51.
The bearing with cross roller globe bearing 47 of main shaft bottom can be changed under the situation of not dismantling main shaft.For this reason, at first penetrate girder steel in the blast inlet of main shaft lower metal axle 42, the girder steel supported at two edges takes down the set screw between bearing base and the base backing plate then, extracts base backing plate 50 again out, and bearing base can fall, thereby changes bearing easily.This maintenance to stove is most important.Be cooling bearing lubricating oil, in bearing base 49, be provided with water-cooled serpentine tube 48.Be sealing and dustproof, at the dustproof steel plate circle 46 of bearing outer setting.
Described furnace chamber interlayer 21 is to form with heat-resisting lightweight refractory cast.
Described electric heating element 19 is installed in below the last interlayer in the furnace chamber and down above the interlayer.
Described quill shaft is communicated with the peripheral hardware blower fan, and its blower fan is a vacuum fan.
For getting rid of steam, flue gas and regulating furnace atmosphere, the other formula pulse dust collector of inserting is installed on the furnace roof.
Each furnace chamber has fire door 20, in order to install and maintenance.Each furnace chamber is equipped with 1～2 thermopair 22 and shows furnace temperature, and the furnace chamber top temperature is 950～1000 ℃ during works better, and temperature can be controlled automatically.Each furnace chamber is provided with peep hole 8, can observe working condition in the stove at any time.Furnace roof and furnace bottom adopt water seal 11 with furnace chamber and extraneous sealing.Induced draft fan is by the cooling of main shaft top exhausting, and 4 inner and extraneous sealings with main shaft of adjustable tightness system are to guarantee that main shaft forms high negative pressure when exhausting is cooled off.Steelframe 1 highest point is equipped with electric hoist 2, in order to daily handling.High about 17～20 meters of throat platform, about 5～8 meters of stove internal diameter, output is 1～50,000 ton/year.Furnace charge calcination time in stove is adjustable, is about 90～150 minutes.
Claims (9)
1, the vertical calcining furnace of a kind of kaolinite powder, comprise: be bearing in the vertical body of heater (12) on the steel construction (1), use refractory materials interlayer (21) to be separated into several furnace chambers (13) in the stove from top to bottom, be provided with hollow main shaft in the middle of the body of heater, main shaft middle part (9) is equipped with raking arm (18) corresponding to each furnace chamber, rake teeth (34) is installed on each raking arm, main shaft bottom (10) is connected with transmission system, main shaft top (7) is by sliding surface bearing (6) location, upper of furnace body is provided with charging opening (3), the bottom is provided with discharge opening (40), furnace roof is equipped with fly-ash separator (5), quill shaft is communicated with the peripheral hardware blower fan, it is characterized in that: described hollow main shaft middle part (9) is divided into 12～14 joints corresponding to furnace chamber (13), 4 hollow raking arms of uniform installation (18) on every joint, 3～5 rake teeths (34) are installed on each raking arm, be provided with vertical inhibiter film (39) along diametric(al) in the raking arm, it is divided into two Room, adorn a cold wind orienting lug (26) in every joint main shaft middle part (9), orienting lug is a cruciform, there are two big sallop screens at its place, diagonal angle, top, and there are two little sallop screens at another place, diagonal angle, bottom, and barrier sheet (39) sponson inserts in the orienting lug in the raking arm; Odd number interlayer between the furnace chamber (13) leaves circular clearance (41) along the main shaft outer rim in the middle of stove, the even numbers interlayer is provided with a hole at place, close furnace wall every 120 degree and communicates with following furnace chamber; Electric heating element (19) is housed in each furnace chamber.
2, according to the vertical calcining furnace of the described kaolinite powder of claim 1, it is characterized in that: described every joint main shaft middle part (9) is made up of metalwork (23), outer instlated tubular (24), intermediate thermal insulating layer (25), the reinforcing section (44) of last 4 the raking arm open holess of metalwork (23) is a concave inward structure, intermediate thermal insulating layer (25) is outer to be rolled on the outer wall of metalwork (23), and outer instlated tubular (24) makes the prefabricated component integral assembling in the outside.
3, according to the vertical calcining furnace of the described kaolinite powder of claim 1, it is characterized in that: 4 hollow raking arms (18) are installed at described every joint main shaft middle part (9), be that raking arm is penetrated in the open holes, the raking arm end increases a bit of reinforcing sleeve (38), and fix with anti-rotation pin (28) and raking arm, pin is stuck in the groove of offering in the hole, uses raking arm fixed cap (27) clamp sleeve (38) again.
4, according to the vertical calcining furnace of the described kaolinite powder of claim 2, it is characterized in that: described intermediate thermal insulating layer (25) is the pure aluminium silicate felt; Outer instlated tubular (24) is a lightweight refractory.
5, according to the vertical calcining furnace of the described kaolinite powder of claim 1; it is characterized in that: raking arm metalwork (29) is arranged in the described hollow raking arm (18); the two-layer thermal insulation protection of peripheral hardware; raking arm metalwork (29) adopts the heating resisting metal rotational casting to form; there is lid (31) outer end; raking arm intermediate thermal insulating layer (36) is senior pure aluminium silicate felt; the prefabricated component that the outer instlated tubular of raking arm (32) is made for heat-resisting lightweight refractory; be placed with support ring (37) between intermediate thermal insulating layer and the outer instlated tubular, and fixing with anti-rotation nut (33).
6, according to the vertical calcining furnace of the described kaolinite powder of claim 1, it is characterized in that: described main shaft bottom (10) is connected with transmission system, be by the metal shaft (42) of motor (17) through shaft coupling (16), reduction box (15) transmission bevel-gear sett (14) drive shaft bottom, metal shaft (42) is supported on the bearing with cross roller globe bearing (47) by main shaft backing plate (52), and bearing is supported on the ground by bearing base (49), backing plate (50), back up pad (51).
7, according to the vertical calcining furnace of the described kaolinite powder of claim 1, it is characterized in that: described refractory materials interlayer (21) is to form with heat-resisting lightweight refractory cast; Described even numbers interlayer adopts labyrinth seal with the main shaft outer rim in the middle of stove.
8, according to the vertical calcining furnace of the described kaolinite powder of claim 1, it is characterized in that: described electric heating element (19) is installed in below the last interlayer in the furnace chamber and down above the interlayer.
9, according to the vertical calcining furnace of the described kaolinite powder of claim 1, it is characterized in that: described quill shaft is communicated with the peripheral hardware blower fan, and its blower fan is a vacuum fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320111094 CN2656406Y (en) | 2003-10-22 | 2003-10-22 | Vertical calcining furnace for preparing kaolin powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320111094 CN2656406Y (en) | 2003-10-22 | 2003-10-22 | Vertical calcining furnace for preparing kaolin powder |
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| Publication Number | Publication Date |
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| CN2656406Y true CN2656406Y (en) | 2004-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200320111094 Expired - Fee Related CN2656406Y (en) | 2003-10-22 | 2003-10-22 | Vertical calcining furnace for preparing kaolin powder |
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| CN (1) | CN2656406Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822464A (en) * | 2012-11-19 | 2014-05-28 | 黄旭鹏 | Industrial continuous high-temperature microwave calcining furnace for mineral granules and powder |
| CN106679403A (en) * | 2016-11-23 | 2017-05-17 | 高州市兆翔新材料有限公司 | Kaolin calcining furnace with illuminating lamp |
| CN106705648A (en) * | 2016-11-23 | 2017-05-24 | 高州市兆翔新材料有限公司 | Kaolin calcining furnace with power switcher |
| FR3139188A1 (en) | 2022-08-29 | 2024-03-01 | Innovation & Development Company | microwave calcination furnace for solid materials divided into fine particles |
-
2003
- 2003-10-22 CN CN 200320111094 patent/CN2656406Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822464A (en) * | 2012-11-19 | 2014-05-28 | 黄旭鹏 | Industrial continuous high-temperature microwave calcining furnace for mineral granules and powder |
| CN106679403A (en) * | 2016-11-23 | 2017-05-17 | 高州市兆翔新材料有限公司 | Kaolin calcining furnace with illuminating lamp |
| CN106705648A (en) * | 2016-11-23 | 2017-05-24 | 高州市兆翔新材料有限公司 | Kaolin calcining furnace with power switcher |
| FR3139188A1 (en) | 2022-08-29 | 2024-03-01 | Innovation & Development Company | microwave calcination furnace for solid materials divided into fine particles |
| WO2024047295A1 (en) | 2022-08-29 | 2024-03-07 | Innovation & Development Company | Microwave calcination furnace for solid materials divided into fine particles |
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| CF01 | Termination of patent right due to non-payment of annual fee |