CN87204984U - Device for producing indirect process zinc oxide - Google Patents
Device for producing indirect process zinc oxide Download PDFInfo
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- CN87204984U CN87204984U CN 87204984 CN87204984U CN87204984U CN 87204984 U CN87204984 U CN 87204984U CN 87204984 CN87204984 CN 87204984 CN 87204984 U CN87204984 U CN 87204984U CN 87204984 U CN87204984 U CN 87204984U
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Abstract
The utility model relates to a device for producing indirect process zinc oxide, particularly a device for directly producing indirect process zinc oxide with high-grade ratio in the rectifying process of zinc production in a pyrogenic process. The utility model is characterized in that the utility model adopts an oxidizing chamber with a large capacity and a pipeline in a shape like Chinese character 'ren', and gases in the utility model are flown by natural suction force generated by potential difference and temperature difference. The utility model is suitable for producing indirect process zinc oxide in the rectifying process of pyrogenic process zinc production, the first grade ratio of the zinc oxide is greater than 99%. The quality of the product which is produced by the utility model exceeds the standard of national first grade product. The utility model is widely used for industries of paint, rubber, ceramic and medicine, and is also used for producing raw material for color kinescopes and non-linear resistor discs.
Description
The utility model relates to a kind of device of producing indirect process zinc oxide, particularly is used in the pyrometallurgy of zinc technology, produces the device of high percentage of product indirect process zinc oxide.
Other height of zinc oxide level will influence economic benefit, first grade zinc oxide is the raw material of industries such as paint, rubber, pottery, medicine, and the high pure zinc oxide that quality is better than first grade is that electronic industry is made the requisite raw material of non-linear resistor in colour picture tube and the power transmission.
The production method of indirect process zinc oxide has nothing in common with each other, first method is to adopt metallic zinc is heated refuse until evaporation, in oxidized still, the zinc that is vapor state is become the hot gas that is mixed with particulate oxide zinc by airborne dioxygen oxidation, this hot gas is through after the tube-cooled, collect with cloth bag, it promptly is zinc oxide product, second method is that spelter works produces indirect process zinc oxide, be in pyrometallurgical smelting process, before the zinc vapor condensation of zinc rectifying tower, manage to make it to be used as product under oxidation, cooling and the collection.So just that part energy that in the first method metallic zinc is heated refuse, evaporation consumption has all been saved, thereby reduced the cost of product, also can reduce railway round transport and expense simultaneously.
Though metallic zinc is very easily oxidation under gaseous state, and emit a large amount of heats, but it is little that present pyrometallurgy of zinc factory produces the used oxidizing chamber volume of indirect process zinc oxide, because the duration of contact of oxygen is short in gaseous state zinc and the air, mix bad, often there is the oxidation that is not able to do in time of a small amount of gaseous state zinc just to become liquid Zn, even solid zinc, cause zinc oxide percentage of product (first grade zinc oxide accounts for the interior sedimentary zinc oxide of pipeline and collects the weight percentage of zinc oxide total amount from cloth bag) to descend, in addition owing between oxidizing chamber outlet and gas manifold, adopt the horizontal pipe cooling, under particulate oxide zinc can deposit in the gas flow process, thereby change the pipeline free cross-sectional area, cause the fluctuation of gas flow rates, and then the percentage of product of product is descended.For the power ventilation flow process that adopts blower fan, because blower fan import, outlet are often stopped up, the fan blade bonding goes up zinc oxide, often cleaning, labor condition is poor, the impurity of not only bringing in the surrounding environment makes product contaminated, and blower fan draft change also can cause the fluctuation of air capacity, gas flow rate, furnace temperature, the residence time and go out substandard products zinc oxide, also wants consumed power.Therefore, produce indirect process zinc oxide first grade percentage of product at present and have only 80～92%, influenced its application, reduced economic benefit.
The purpose of this utility model is in order to overcome the deficiencies in the prior art, to provide a kind of device of producing indirect process zinc oxide that a kind of device that can produce high percentage of product indirect process zinc oxide in pyrometallurgical smelting process particularly is provided.
The device of the high percentage of product indirect process zinc oxide of production described in the utility model comprises zinc rectifying tower 1, chute 2, zinc fume distribution chamber 3, zinc fume nozzle 4, air intlet 5, sedimentation bucket 8, gas manifold 9, cloth bag 10, worm conveyer 11, zinc oxide bucket 12.It is characterized in that the oxidizing chamber that has volume enough big, between oxidizing chamber outlet and gas manifold, chevron shaped pipeline 7 is arranged, between air intlet 5 and the cloth bag inlet certain potential difference is arranged in the device, between interior gas of device and the outside air fixed difference difference is arranged.
The high percentage of product indirect process zinc oxide of production described in the utility model device, oxidized still wherein is made up of zinc fume distribution chamber 3 and oxidizing chamber 6 two portions, it is conventional metallurgical furnace in the pyrometallurgy of zinc technology, build by laying bricks or stones by refractory materialss such as refractory brick, silicon carbide brick, insulating bricks and to form, wherein oxidizing chamber 6 will have enough big volume, and every day, one ton of zinc oxide volume of every product can not be less than 1 cubic metre.Zinc fume from the zinc rectifying tower enters zinc fume distribution chamber 3 through chute 2, enter oxidizing chamber equably by zinc fume nozzle 4 again, the airborne dioxygen oxidation that is entered oxidizing chamber 6 in oxidizing chamber 6 from air intlet 5 generates zinc oxide, because oxidizing chamber 6 volumes are enough big, zinc fume can have the enough reaction times to guarantee the complete oxidation of zinc with the oxygen thorough mixing.
Device described in the utility model, the pipeline that is connected between oxidizing chamber outlet and the gas manifold adopts chevron shaped pipeline, angle between chevron shaped pipe centerline of every straight section and horizontal plane is between 55～90 degree, can need select wherein angle (when needs application 90 is spent, then becoming U type pipeline) arbitrarily for use by planimetric position, the cooling area of equipment.The position that intersects in herring-bone pipeline bottom is provided with the sedimentation bucket in order to be collected in the oxide powder and zinc under the heavy collection in the pipeline, because pipeline has certain gradient, the oxide powder and zinc thickness that adheres to chevron shaped inner-walls of duct is very stable, make systemic resistance stable, the gas flow situation is not affected because of the heavy collection of oxide powder and zinc in the pipeline like this, guaranteed that air-flow is in ducted steady flow, help obtaining stable excess air, oxidising process and process of cooling all can be stablized successfully carry out, thereby produce zinc oxide with high percentage of product.
It is board making such as the various metallic substance of 0.75-4 millimeter such as stainless steel, aluminium, ordinary steel that chevron shaped pipeline requires to adopt thickness according to different cooling, caliber, pipe range can be selected by gas flow rate in required cooling area and the device, reduce to about 160 ℃ to guarantee the gas temperature before entering cloth bag that contains zinc oxide.
Gas temperature is unlikely to lower too quickly in order to make, the one section chevron shaped pipeline employing thickness that is right after the oxidizing chamber outlet is that 4 millimeters general steel plate is made, in this segment pipe, the temperature of gas keeps being not less than 420 ℃ of the fusing points of zinc, guarantee that zinc fume has sufficiently long oxidization time, during this period of time zinc fume obtains oxidation completely.The rest part pipeline can adopt than light sheet and make.
Device described in the utility model is interior owing between air intlet and the cloth bag inlet certain potential difference is arranged, between gas and the outside air certain temperature difference is arranged in the device, therefore native system is not established blower fan, adopts the natural air exhaust operation, and the power of gas flow just comes from above-mentioned natural draft.Regulate the air admission amount by the size of control air import aperture during production, when regulating the air admission amount, also just realized the adjusting of device draft malleation do not occurred with air intlet during normal running and is as the criterion.Adopt this natural air exhaust operation, can stably control the air capacity of access to plant, make the interior air-flow of device be in steady flow condition, help producing the zinc oxide of high percentage of product, can be as adopting blower fan to carry out forced draft, the air of the more band impurity of suction because draft be difficult for to be regulated, polluted product also can be owing to having a power failure and the fluctuation of blower fan draft not cause the fluctuation of air capacity, furnace temperature, the residence time to reduce the possibility of first grade zinc oxide output.Saved the electric energy that adopts blower fan to consume.When just going into operation, owing to there is not the temperature difference, system does not still have the nature draft, so when beginning to produce, produce draft, after meeting the requirements of the temperature difference in the device, promptly produced natural draft with an interim blower fan, stop using motor again, change ordinary production over to by natural air exhaust.
The high percentage of product indirect process zinc oxide of production provided by the utility model device compared with prior art has following advantage:
1, owing to the gas flow that contains zinc oxide in this device is to utilize the natural draft of the potential difference of import and export and the temperature difference generation inside and outside the device to replace blower fan to aspirate, so saved blower fan, this has not only reduced energy consumption, simplified operation, improved labor condition, and avoided the pollution of the impurity brought in the air to product, and the product that causes degradation; Owing to can causing the fluctuation of air capacity, furnace temperature, blower fan draft change causes the minimizing of first grade zinc oxide output, in case power failure or fan trouble also can cause stopping production, this device adopts the nature draft can guarantee the gas steady flow and the essential residence time, makes to produce to stablize constant product quality.
2, the indirect process zinc oxide quality of this device production not only meets the national standard of the People's Republic of China (PRC) (GB3185-82) first grade, can be used as the raw material of industries such as paint, rubber, pottery, medicine, its purity is much better than above-mentioned national standard, so also be the requisite raw material that electronic industry is made non-linear resistor in colour picture tube and the power transmission.
3, this device is produced the indirect process zinc oxide percentage of product greater than 92%.
Improve the percentage of product of producing indirect process zinc oxide tangible benefit is arranged economically.For example: the price of first grade zinc oxide and three grades of product zinc oxide is respectively 3200 yuan/ton and 2800 yuan/ton at present, if the percentage of product of zinc oxide is brought up to 99% by 90%.The economic benefit that one ton of zinc oxide of then every production increases is 36 yuan.
In addition since on the market to the demand of tertiary oxidation zinc seldom, therefore, the percentage of product that improves zinc oxide also has the certain social benefit.
The high percentage of product indirect process zinc oxide of production provided by the utility model schematic representation of apparatus.See accompanying drawing.
Among the figure: 1-zinc rectifying tower, 2-chute, 3-zinc fume distribution chamber, 4-zinc fume nozzle, 5-air intlet, 6-oxidizing chamber, the chevron shaped pipeline of 7-, 8-sedimentation bucket, 9-gas manifold, 10-cloth bag, 11-worm conveyer, 12-zinc oxide bucket.
Describe this device in detail below in conjunction with accompanying drawing.
The utility model provides the device of producing high percentage of product indirect process zinc oxide to comprise zinc rectifying tower 1, chute 2, zinc fume distribution chamber 3, zinc fume nozzle 4, air intlet 5, oxidizing chamber 6, chevron shaped pipeline 7, sedimentation bucket 8, gas manifold 9, cloth bag 10, worm conveyer 11, zinc oxide bucket 12.
The gaseous state zinc that comes out from zinc rectifying tower 1 enters zinc fume distribution chamber 3 through chute 2, enter oxidizing chamber 6 through zinc fume nozzle 4, in this and the air mixed that enters oxidizing chamber by air intlet 5, this moment, gaseous state zinc and airborne oxygen reacted, zinc is oxidized to zinc oxide, because the natural draft that the temperature difference produced in potential difference between air intlet and the cloth bag inlet and the device between gas temperature and the outside temperature makes these hot gass that contain zinc oxide cool off through chevron shaped pipeline 7 with stable flow velocity, enter cloth bag 10 by gas manifold 9 then, under this collected zinc oxide product, obtain this moment was product---indirect process zinc oxide.Product is discharged through zinc oxide bucket 8, and tail gas is discharged by the cloth bag filtration.Product zinc oxide packs outward with the worm conveyer carrying device.
The device of the high percentage of product indirect process zinc oxide of one cover production described in the utility model is set in pyrometallurgy of zinc technology.This device can be produced 16 tons in zinc oxide daily, it is round that oxidized still is, 3 meters of internal diameters, high 3.7 meters, divide two-layer, the upper strata is an oxidizing chamber, its height is 2.3 meters, lower floor is the zinc fume distribution chamber, two interlayer radiuses are that 3.5 meters ball-type vault separates, equidistant 16 diameters are set is 100 millimeters nozzle apart from 300 millimeters of inwalls on the ball-type vault, have 16 230 * 230 millimeters air intlet near the top of ball-type vault, air intlet is established door, so that adjustment air input, the pipeline that is connected between oxidizing chamber and the gas manifold is chevron shaped, the angle of every section chevron shaped pipe centerline and horizontal plane is the 55-90 degree, pipe diameter is 2 meters, long 110 meters, manufactures with thick 2 millimeters general steel plate, the one section chevron shaped pipeline that wherein is right after oxidizing chamber is to manufacture with thick 4 millimeters steel plate, and sedimentation bucket and zinc oxide bucket are made with 1.5-4 millimeter stainless steel plate.This device has 384 cloth bags, and every cloth bag diameter is 270 millimeters, and effectively Filter length is 12 meters, and 1 meter on cloth bag top makes of polyester flannel, and all the other are made of calico.Every group of equidistant zinc oxide bucket that is provided with in cloth bag bottom, the zinc fume distribution chamber keeps malleation, gas borrows the potential difference of gas feed and cloth bag inlet and the natural draft of device internal-external temperature difference generation to flow in the device, in being right after one section chevron shaped pipeline of oxidizing chamber, temperature maintenance is more than 420 ℃, again through after one section chevron shaped tube-cooled, to entering cloth bag by gas manifold below 180 ℃, the particulate oxide zinc that drops into the zinc oxide bucket promptly is product---indirect process zinc oxide, and the zinc oxide percentage of product of producing with this device is greater than 99%.
Under other condition same cases, the angle of chevron shaped pipeline and horizontal plane is 60 °, 75 °, 90 ° (being U type pipe), the pipeline wall thickness is 0.75---4 millimeters stainless steels, aluminium, when general steel plate is made this device, also can produce percentage of product greater than 99% indirect process zinc oxide.
Claims (5)
1, a kind of device that is used to produce indirect process zinc oxide comprises zinc rectifying tower, chute, zinc fume distribution chamber, zinc fume nozzle, air intlet, sedimentation bucket, gas manifold, cloth bag, worm conveyer, zinc oxide bucket, it is characterized in that the oxidizing chamber that has volume enough big, between oxidizing chamber outlet and gas manifold, chevron shaped pipeline is arranged, between air intlet and the cloth bag inlet certain potential difference is arranged, between gas and the outside air certain temperature difference is arranged in the device.
2, device according to claim 1 is characterized in that the volume every day of oxidizing chamber, 1 ton of zinc oxide of every product can not be less than 1 cubic metre.
3, device according to claim 1 is characterized in that the angle between chevron shaped pipe centerline of every straight section and horizontal plane is the 55-90 degree.
4, device according to claim 1 is characterized in that chevron shaped pipeline employing thickness is 0.75～4 millimeter stainless steel plate, aluminium sheet, general steel plate making.
5, device according to claim 4 is characterized in that chevron shaped pipeline is right after one section general steel plate making of adopting 4 mm thick of oxidizing chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87204984 CN87204984U (en) | 1987-03-30 | 1987-03-30 | Device for producing indirect process zinc oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87204984 CN87204984U (en) | 1987-03-30 | 1987-03-30 | Device for producing indirect process zinc oxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87204984U true CN87204984U (en) | 1988-02-24 |
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ID=4820801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87204984 Expired - Lifetime CN87204984U (en) | 1987-03-30 | 1987-03-30 | Device for producing indirect process zinc oxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87204984U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084595A (en) * | 2014-07-11 | 2014-10-08 | 湖南娄底华星锑业有限公司 | Antimony powder production system |
| CN104709716A (en) * | 2015-03-11 | 2015-06-17 | 张家港市双龙氧化锌厂 | High-temperature powder conveying and guiding-out device |
| CN105883902A (en) * | 2016-06-30 | 2016-08-24 | 安徽省含山县锦华氧化锌厂 | Integrated device for preparing zinc oxide from zinc ingot |
| CN106145181A (en) * | 2016-06-30 | 2016-11-23 | 安徽省含山县锦华氧化锌厂 | A kind of zinc oxide multiaspect collection device |
| CN113522218A (en) * | 2021-07-30 | 2021-10-22 | 江西中晶新材料有限公司 | Production device and production method of 5N zinc oxide |
-
1987
- 1987-03-30 CN CN 87204984 patent/CN87204984U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084595A (en) * | 2014-07-11 | 2014-10-08 | 湖南娄底华星锑业有限公司 | Antimony powder production system |
| CN104084595B (en) * | 2014-07-11 | 2016-08-24 | 湖南娄底华星锑业有限公司 | A kind of antimony powder production system |
| CN104709716A (en) * | 2015-03-11 | 2015-06-17 | 张家港市双龙氧化锌厂 | High-temperature powder conveying and guiding-out device |
| CN105883902A (en) * | 2016-06-30 | 2016-08-24 | 安徽省含山县锦华氧化锌厂 | Integrated device for preparing zinc oxide from zinc ingot |
| CN106145181A (en) * | 2016-06-30 | 2016-11-23 | 安徽省含山县锦华氧化锌厂 | A kind of zinc oxide multiaspect collection device |
| CN113522218A (en) * | 2021-07-30 | 2021-10-22 | 江西中晶新材料有限公司 | Production device and production method of 5N zinc oxide |
| CN113522218B (en) * | 2021-07-30 | 2022-11-25 | 江西中晶新材料有限公司 | Production device and production method of 5N zinc oxide |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |