CN109237946A - A kind of negative pressure steel band type retort - Google Patents
A kind of negative pressure steel band type retort Download PDFInfo
- Publication number
- CN109237946A CN109237946A CN201811270378.8A CN201811270378A CN109237946A CN 109237946 A CN109237946 A CN 109237946A CN 201811270378 A CN201811270378 A CN 201811270378A CN 109237946 A CN109237946 A CN 109237946A
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- CN
- China
- Prior art keywords
- steel band
- furnace body
- negative pressure
- section furnace
- band type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
- F27D15/0206—Cooling with means to convey the charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
Abstract
The invention discloses a kind of negative pressure steel band type retorts, including the feeding device for adding raw materials, the output end of the feeding device is connected with the preheating device for being preheated to raw material, the output end of the preheating device is connected with the calciner plant for distilling under condition of negative pressure to raw material calcining, the output end of the calciner plant is connected with for carrying out cooling cooling device to the slag charge after distillation, the output end of the cooling device is connected with the discharging device for slag charge to be discharged, the negative pressure steel band type retort further includes the transmitting device for being used for transmission material, feeding device, preheating device, calciner plant, cooling device and discharging device are set on transmitting device and are sequentially connected, feeding device is set to the input terminal of transmitting device, discharging device is set to the output end of transmitting device.The present invention has many advantages, such as simple structure, safety and environmental protection, high production efficiency, distills at low cost, energy continuous charging operation and distillage is with high purity.
Description
Technical field
The invention belongs to rare precious metal technical field of smelting, more particularly to a kind of toxic high-purity rare precious metal oxide is negative
Compressed steel belt retort.
Background technique
Gold has good physical characteristic as a kind of noble metal, and " true gold fears no fire " just refers to yellow under general flame
Gold is not easy to melt.Nature proof gold is few, the accompanying elements such as Chang Hanyin, copper, iron, palladium, bismuth, platinum, nickel, tellurium, selenium, osmium.It is Central-South
Contain the rare precious metals such as lead oxide, bismuth oxide, antimony oxide, arsenic oxide arsenoxide by the flue dust smelted, generated after purifying gold in smeltery
Oxide, wherein 90% the above are arsenic oxide arsenoxide (As2O3).Arsenic oxide arsenoxide has severe toxicity, odorless, white powder or crystallization.There are three types of
Crystalline form: the density 4.15g/cm of monoclinic crystal3, distil at 193 DEG C；The density 3.865g/cm of cubic crystal3；Amorphous body it is close
Spend 3.738g/cm3, 312.3 DEG C of fusing point.Arsenic oxide arsenoxide can be slightly soluble in water and generate arsenious acid.Monoclinic crystal and cubic crystal are dissolved in second
Alcohol, acids and bases；Amorphous body is dissolved in acids and bases, but does not dissolve in ethyl alcohol.Industrial goods are because of impurities difference, slightly in red
Color, grey or yellow.
Arsenic oxide arsenoxide (As2O3) be mainly used for refining element arsenic, it is the raw material smelted arsenic alloy and manufacture semiconductor.In glass
Industry is used as clarifying agent and decolorising agent, with reinforcing glass product translucency.Agriculturally, the disinfectant as prevention and treatment pest and disease damage
And rust remover, also serve as the raw material of other insecticide pesticides containing arsenic.It is also used for the manufacture of coating and dyestuff and chemical reagent can be made.
It is also used to gas sweetening, wood preservation, boiler compounds and ceramics and enamel etc..When as analytical reagent, such as make benchmark
Reagent, reducing agent, chlorine absorption agent etc..It can also be used in the preparation of arsenite, be used as preservative.For glass, enamel, pigment
Industry and prepare drug, insecticide, leather preservative agent etc..
Currently, since the flue dust that extracts gold generates contains the rare precious metals such as lead oxide, bismuth oxide, antimony oxide, arsenic oxide arsenoxide
Oxide, wherein 90% the above are arsenic oxide arsenoxide (As2O3), it is contemplated that arsenic oxide arsenoxide has a severe toxicity, how by these rare precious metal oxides
Especially arsenic oxide arsenoxide is separated from the flue dust after extracts gold, is avoided pollution environment and is eliminated the safety caused by people and animals
It influences, becomes those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the shortcomings of the prior art, and it is simple, safe to provide a kind of structure
Environmental protection, high production efficiency, the negative pressure steel band type retort for distilling at low cost, energy continuous charging operation and distillage purity is high.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of negative pressure steel band type retort, including the feeding device for adding raw materials, the output end of the feeding device
It is connected with the preheating device for being preheated to raw material, the output end of the preheating device is connected under condition of negative pressure
To the calciner plant of raw material calcining distillation, the output end of the calciner plant is connected with for cooling down to the slag charge after distillation
Cooling device, the output end of the cooling device is connected with the discharging device for slag charge to be discharged, and the negative pressure steel band type steams
Furnace further includes the transmitting device for being used for transmission material, the feeding device, preheating device, calciner plant, cooling device and is gone out
Material device is set on the transmitting device and is sequentially connected, and the feeding device is set to the input terminal of the transmitting device, institute
State the output end that discharging device is set to the transmitting device.
Above-mentioned negative pressure steel band type retort, it is preferred that the calciner plant includes evaporator section furnace body, preceding bleeding point and use
In the exhaust outlet for extracting the steam distilled out out and the gas for being used to control the protective gas and carrier gas that are passed through in furnace
Atmosphere control system, the preceding bleeding point are set to the input terminal of the evaporator section furnace body, and the exhaust outlet is set to the evaporator section furnace
The output end of body.
Above-mentioned negative pressure steel band type retort, it is preferred that the preheating device includes preheating section furnace body, the preheating section furnace
Body and the evaporator section furnace body use the Resistant heating body of ferrum-chromium-aluminum niobium.
Above-mentioned negative pressure steel band type retort, it is preferred that the cooling device includes cooling section furnace body and chassis, described cold
But section furnace body is set on the chassis, and the cooling section furnace body is equipped with water jacket.
Above-mentioned negative pressure steel band type retort, it is preferred that the feeding device includes feeding rack, sealing element and for will be former
Expect that the distributing device being dispersed on the transmitting device, the distributing device are set on the feeding rack, the discharging device includes using
In the material scraper for scraping slag charge from the transmitting device.
Above-mentioned negative pressure steel band type retort, it is preferred that the transmitting device includes steel band, for driving the steel band
Steel band driving device and steel belt tensioning regulating device for adjusting the steel band, the steel band driving device and steel belt tensioning tune
Regulating device is divided into the both ends of the steel band, and the steel belt tensioning regulating device includes described in tensioning wheel, bearing block and stretchy
Tensioning wheel makes the ballast box of the steel belt tensioning, and the steel band is set on the tensioning wheel, and the tensioning wheel is set to the bearing
On seat, the ballast box is connect with the bearing block.
Above-mentioned negative pressure steel band type retort, it is preferred that the radius of the evaporator section furnace body is greater than the preheating section furnace body
With the radius of cooling section furnace body.
Above-mentioned negative pressure steel band type retort, it is preferred that the evaporator section furnace body is variable diameter furnace body, the evaporator section furnace body
Radius increase along the direction of material transferring.
Above-mentioned negative pressure steel band type retort, it is preferred that the sealing element, exhaust outlet, preheating section furnace body and evaporator section furnace
The apparatus for detecting pressure for detection pressure is equipped on body.
Above-mentioned negative pressure steel band type retort, it is preferred that exhaust ports diesel oil hair spare when being equipped with for having a power failure
Motivation.
Compared with the prior art, the advantages of the present invention are as follows:
Negative pressure steel band type retort of the invention, including feeding device, preheating device, calciner plant, cooling device, discharging
Device and transmitting device set gradually connection feeding device, preheating device, calcining dress from the input terminal of transmitting device to output end
Set, raw material is dispersed in the input terminal of transmitting device by cooling device and discharging device, feeding device, then transmitting device drives former
Material enters preheating device and preheats, then is distilled under negative pressure state into calciner plant, and the steam distilled out is extracted rear cold
But solidification obtains the valuable constituent of high-purity, remaining slag charge enters cooling device cooling, discharges and arranges finally by discharging device
Out.Negative pressure steel band type distillation furnace structure of the invention is simple, and people is allowed to utilize from smelting smoke dust using vacuum distillation technique
It melts the difference of boiling point and extracts rare precious metal oxide, especially arsenic oxide arsenoxide, and can be realized the operation mode of continuous charging, it is whole
A distillation process can be maintained negative pressure operating status in distillation process, be avoided the leakage of toxic gas with fully automatic operation, can be with
Accomplish green safe environmental protection, production efficiency can also be improved, additionally has the advantages that product purity is high, distillation cost is low etc..
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the negative pressure steel band type retort of embodiment.
Fig. 2 is the structural schematic diagram of the steel belt tensioning regulating device in embodiment.
Marginal data:
1, feeding device；11, feeding rack；12, sealing element；13, distributing device；2, preheating device；21, preheating section furnace body；3,
Calciner plant；31, evaporator section furnace body；32, preceding bleeding point；33, exhaust outlet；34, atmosphere control device；4, cooling device；41, cold
But section furnace body；42, chassis；5, discharging device；6, transmitting device；61, steel band；62, steel band driving device；63, steel belt tensioning tune
Regulating device；631, tensioning wheel；632, bearing block；633, ballast box.
Specific embodiment
To facilitate the understanding of the present invention, the present invention is done below in conjunction with Figure of description and preferred embodiment more complete
Face meticulously describes, but protection scope of the present invention is not limited to following specific embodiments.
As shown in Figure 1, the negative pressure steel band type retort of the present embodiment, including the feeding device 1 for adding raw materials, charging
The output end of device 1 is connected with the preheating device 2 for being preheated to raw material, and the output end of preheating device 2, which is connected with, to be used for
To the calciner plant 3 of raw material calcining distillation under condition of negative pressure, the output end of calciner plant 3 is connected with for the slag after distillation
Material carries out cooling cooling device 4, and the output end of cooling device 4 is connected with the discharging device 5 for slag charge to be discharged, negative pressure steel band
Formula retort further includes the transmitting device 6 for being used for transmission material, feeding device 1, preheating device 2, calciner plant 3, cooling device 4
It is set on transmitting device 6 and is sequentially connected with discharging device 5, feeding device 1 is set to the input terminal of transmitting device 6, discharging dress
Set 5 output ends for being set to transmitting device 6.Raw material is admitted to from feeding device 1, successively by pre- under the action of transmitting device 6
Thermal 2 and calciner plant 3, the interior distillation for carrying out negative pressure state in calciner plant 3, needed for the Steam Recovery distilled out is obtained
Valuable constituent, remaining slag charge through apparatus for supercooling 4 and discharging device 5 processing be discharged, entire retort energy automatic running,
It works continuously, has the advantages that safety and environmental protection, high production efficiency, product purity are high, distillation cost is low etc..
In the present embodiment, calciner plant 3 is including evaporator section furnace body 31, preceding bleeding point 32 and for taking out the steam distilled out
Exhaust outlet 33 out and the atmosphere control device 34 for being controlled the protective gas and carrier gas that are passed through in furnace, preceding pumping
Port 32 is set to the input terminal of evaporator section furnace body 31, and exhaust outlet 33 is set to the output end of evaporator section furnace body 31.Specifically, preceding pumping
Exhaust fan is equipped at mouth 32 and exhaust outlet 33.Make to keep negative in evaporator section furnace body 31 in preceding bleeding point 32 and the pumping of exhaust outlet 33
The state of pressure, the valuable constituent in material are extracted after distilling in evaporator section furnace body 31 from exhaust outlet 33 as a vapor,
Obtain for example high-purity arsenic trioxide of high purity product after further cooled and solidified, atmosphere control device 34 can be to being passed through in furnace
Protective gas and the flow of carrier gas are controlled with pressure, drive sintering generate arsenic trioxide gas carrier gas (air) with
Protective gas nitrogen, to guarantee that the accurate package of protective atmosphere and the normal of carrier gas are driven in furnace.
In the present embodiment, preheating device 2 includes preheating section furnace body 21, and preheating section furnace body 21 and evaporator section furnace body 31 use iron
The Resistant heating body of chromium aluminium niobium.Specifically, preheating section furnace body 21 includes the Resistant heating body of two sections, evaporator section furnace body
31 include the Resistant heating body of 12 sections.The heat temperature raising effect of the Resistant heating body of ferrum-chromium-aluminum niobium is good, due to pre-
Hot arc furnace body 21 and evaporator section furnace body 31 are played the role of difference, and the calandria that different the number of sections are arranged in different furnace bodies helps
In the operation for guaranteeing device on the basis of energy-efficient.
In the present embodiment, cooling device 4 includes cooling section furnace body 41 and chassis 42, and cooling section furnace body 41 is set to chassis 42
On, cooling section furnace body 41 is equipped with water jacket.Specifically, cooling section furnace body 41 includes two sections of the area A and the area B, installed, is used by welding
Heated steel band 61 is cooled down, uses rectangular-ambulatory-plane structure in structure to guarantee optimal heat dissipation and cooling effect
Fruit, being divided into two sections of the area A and the area B reduces manufacture difficulty and cost, while also ensuring same cooling effect, cooling section furnace body 41
On water jacket can take away heat, slag charge is cooling in order to handling.
In the present embodiment, feeding device 1 is including feeding rack 11, sealing element 12 and for raw material to be dispersed in transmitting device 6
On distributing device 13, distributing device 13 be set to feeding rack 11 on, discharging device 5 includes for scraping slag charge from transmitting device 6
Material scraper.Raw material can be spread in uniform on transmitting device 6 by distributing device 13, improve the effect of subsequent preheating and distillation, sealing element
12 can ensure the production environment of tiny structure in furnace, material scraper the slag charge being adhered on transmitting device 6 can be scraped it is de-, in order to avoid with transmission
6 cycle operation of device, to influence the quality of production efficiency and product.
As shown in Fig. 2, transmitting device 6 includes steel band 61, the steel band driving device for driving steel band 61 in the present embodiment
62 and the steel belt tensioning regulating device 63 for adjusting steel band 61, steel band driving device 62 and steel belt tensioning regulating device 63 set up separately
In the both ends of steel band 61, steel belt tensioning regulating device 63 includes that tensioning wheel 631, bearing block 632 and stretchy tensioning wheel 631 make steel
Ballast box 633 with 61 tensionings, steel band 61 are set on tensioning wheel 631, and tensioning wheel 631 is set on bearing block 632, ballast box 633
It is connect with bearing block 632.Specifically, one end of steel band 61 is connected with the driving wheel of steel band driving device 62, steel band 61 it is another
End is connected with the tensioning wheel 631 of steel belt tensioning regulating device 63, and steel band driving device 62 can drive steel band 61 to operate, to drive
Each device that material passes sequentially through retort is handled, and ballast box 633 is capable of providing downward pulling force, is converted by pulley
For the pulling force for pulling tensioning wheel 631, since tensioning wheel 631 is arranged on bearing block 632,632 bottom of bearing block is equipped with movable pulley,
When steel band 61 generates deformation because expanding with heat and contract with cold, the gravity of ballast box 633 will pull bearing block 632 to the side for tightening steel band 61
To movement, to realize tensioning steel band 61.
In the present embodiment, the radius of evaporator section furnace body 31 is greater than the radius of preheating section furnace body 21 and cooling section furnace body 41.It adopts
With variable diameter technology, so that there is evaporator section furnace body 31 large space, which to facilitate, accommodates a large amount of retort gas, and 21 He of preheating section furnace body
The boiler tube of small radii can be used due to being solid in cooling section furnace body 41.
In the present embodiment, evaporator section furnace body 31 is variable diameter furnace body, and the radius of evaporator section furnace body 31 is along the direction of material transferring
And increase.Specifically, evaporator section furnace body 31 carries out distilation using by former and later two operation intervals, made by variable diameter technology
It obtains pressure directions in furnace and remains identical as material conveying direction, the operation area furnace body volume of input terminal is less than the work of output end
Industry area furnace body volume, so that furnace body volume generates pressure difference under the influence of variable diameter, exhaust outlet 33 is directed toward in the direction of pressure difference
Negative pressure direction.
In the present embodiment, it is equipped on sealing element 12, exhaust outlet 33, preheating section furnace body 21 and evaporator section furnace body 31 for visiting
The apparatus for detecting pressure of measuring pressure.Specifically, 12 pressure detection points are provided with, to ensure that retort gas is not outer under negative pressure state
It leaks, air pressure in this 12 pressure detection point real-time detection furnaces, once it will start safe dress because leakage reason leads to pressure abnormity
It sets, a large amount of nitrogen and a certain proportion of hydrogen is filled at exhaust fan, to keep stable gas pressure in furnace, and done a little at feed inlet
Fire processing, inflated with nitrogen and hydrogen main function are air-isolation or oxygen, feed inlet light be prevent hydrogen leak cause it is quick-fried
Fried danger.
In the present embodiment, spare diesel engine when being equipped at exhaust outlet 33 for having a power failure.Diesel engine is as row
The stand-by power of port 33 remains to work normally when having a power failure, and prevents from having a power failure and retort gas is caused to leak outside, it is ensured that is safe when operation
Environmental protection.
Although the present invention has been disclosed as a preferred embodiment, however, it is not intended to limit the invention.It is any to be familiar with ability
The technical staff in domain, without deviating from the scope of the technical scheme of the present invention, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible changes and modifications or equivalent example modified to equivalent change.Therefore, all
Without departing from the content of technical solution of the present invention, according to the present invention technical spirit any simple modification made to the above embodiment,
Equivalent variations and modification, all shall fall within the protection scope of the technical scheme of the invention.
Claims (10)
1. a kind of negative pressure steel band type retort, it is characterised in that: including the feeding device (1) for adding raw materials, the charging
The output end of device (1) is connected with the preheating device (2) for being preheated to raw material, the output end of the preheating device (2)
It is connected with for, to the calciner plant (3) of raw material calcining distillation, the output end of the calciner plant (3) to connect under condition of negative pressure
Have for being carried out cooling cooling device (4) to the slag charge after distillation, the output end of the cooling device (4) is connected with for arranging
The discharging device (5) of slag charge out, the negative pressure steel band type retort further includes the transmitting device (6) for being used for transmission material, described
Feeding device (1), preheating device (2), calciner plant (3), cooling device (4) and discharging device (5) are set to the transmission and fill
It sets on (6) and is sequentially connected, the feeding device (1) is set to the input terminal of the transmitting device (6), the discharging device (5)
Output end set on the transmitting device (6).
2. negative pressure steel band type retort according to claim 1, it is characterised in that: the calciner plant (3) includes evaporation
Section furnace body (31), preceding bleeding point (32), the exhaust outlet (33) for extracting the steam distilled out out and for being passed through in furnace
Protective gas and the atmosphere control device (34) that is controlled of carrier gas, the preceding bleeding point (32) is set to the evaporator section furnace
The input terminal of body (31), the exhaust outlet (33) are set to the output end of the evaporator section furnace body (31).
3. negative pressure steel band type retort according to claim 2, it is characterised in that: the preheating device (2) includes preheating
Section furnace body (21), the preheating section furnace body (21) and the evaporator section furnace body (31) use the Resistant heating body of ferrum-chromium-aluminum niobium.
4. negative pressure steel band type retort according to claim 3, it is characterised in that: the cooling device (4) includes cooling
Section furnace body (41) and chassis (42), the cooling section furnace body (41) are set on the chassis (42), the cooling section furnace body (41)
It is equipped with water jacket.
5. negative pressure steel band type retort according to claim 4, it is characterised in that: the feeding device (1) includes charging
Frame (11), sealing element (12) and the distributing device (13) for being dispersed in raw material on the transmitting device (6), the distributing device
(13) it is set on the feeding rack (11), the discharging device (5) includes for scraping slag charge from the transmitting device (6)
Material scraper.
6. negative pressure steel band type retort according to any one of claims 1 to 5, it is characterised in that: the transmitting device (6)
Including steel band (61), the steel band driving device (62) for driving the steel band (61) and the steel for adjusting the steel band (61)
Band tightening regulator (63), the steel band driving device (62) and steel belt tensioning regulating device (63) are divided into the steel band
(61) both ends, the steel belt tensioning regulating device (63) include opening described in tensioning wheel (631), bearing block (632) and stretchy
The ballast box (633) that bearing up pulley (631) is tensioned the steel band (61), the steel band (61) are set on the tensioning wheel (631), institute
Tensioning wheel (631) are stated on the bearing block (632), the ballast box (633) connect with the bearing block (632).
7. negative pressure steel band type retort according to claim 4 or 5, it is characterised in that: the evaporator section furnace body (31)
Radius is greater than the radius of the preheating section furnace body (21) and cooling section furnace body (41).
8. negative pressure steel band type retort according to any one of claims 2 to 5, it is characterised in that: the evaporator section furnace body
It (31) is variable diameter furnace body, the radius of the evaporator section furnace body (31) increases along the direction of material transferring.
9. negative pressure steel band type retort according to claim 5, it is characterised in that: the sealing element (12), exhaust outlet
(33), the apparatus for detecting pressure for detection pressure is equipped on preheating section furnace body (21) and evaporator section furnace body (31).
10. negative pressure steel band type retort according to any one of claims 2 to 5, it is characterised in that: the exhaust outlet (33)
Place's diesel engine spare when being equipped with for having a power failure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811270378.8A CN109237946A (en) | 2018-10-29 | 2018-10-29 | A kind of negative pressure steel band type retort |
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| CN201811270378.8A CN109237946A (en) | 2018-10-29 | 2018-10-29 | A kind of negative pressure steel band type retort |
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| CN108131946A (en) * | 2017-12-22 | 2018-06-08 | 湖南太子新材料科技有限公司 | A kind of high temperature sintering system |
| CN207716837U (en) * | 2018-01-10 | 2018-08-10 | 济南新宇硬质合金有限公司 | A kind of hard alloy vacuum sintering furnace |
| CN209326344U (en) * | 2018-10-29 | 2019-08-30 | 湘潭昭峰炉业科技有限公司 | A kind of negative pressure steel band type retort |
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2018
- 2018-10-29 CN CN201811270378.8A patent/CN109237946A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2249519A1 (en) * | 1971-10-11 | 1973-04-19 | Roy Frank Williamson | HEATED ROLLER FOR TREATMENT OF TEXTILE YARN |
| CN201053814Y (en) * | 2007-06-22 | 2008-04-30 | 咸阳陶瓷研究设计院 | Heat-tolerant metal furnace tube continuous external heating type protective atmosphere converter |
| WO2010126172A1 (en) * | 2009-04-30 | 2010-11-04 | Ｊｆｅスチール株式会社 | Blast furnace operation method |
| CN203454724U (en) * | 2013-07-31 | 2014-02-26 | 湖南顶立科技有限公司 | Steel belt furnace for preparing cobaltosic oxide |
| CN105402737A (en) * | 2015-12-30 | 2016-03-16 | 重庆科技学院 | Mechanical grate-type garbage single-furnace gasifying incineration and boiler system |
| CN205980749U (en) * | 2016-09-05 | 2017-02-22 | 中国石油化工股份有限公司 | Mesh -belt kiln calcinator |
| CN108131946A (en) * | 2017-12-22 | 2018-06-08 | 湖南太子新材料科技有限公司 | A kind of high temperature sintering system |
| CN207716837U (en) * | 2018-01-10 | 2018-08-10 | 济南新宇硬质合金有限公司 | A kind of hard alloy vacuum sintering furnace |
| CN209326344U (en) * | 2018-10-29 | 2019-08-30 | 湘潭昭峰炉业科技有限公司 | A kind of negative pressure steel band type retort |
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