CN214361603U - Dolomite smelting device - Google Patents
Dolomite smelting device Download PDFInfo
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- CN214361603U CN214361603U CN202120299895.9U CN202120299895U CN214361603U CN 214361603 U CN214361603 U CN 214361603U CN 202120299895 U CN202120299895 U CN 202120299895U CN 214361603 U CN214361603 U CN 214361603U
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Abstract
The utility model discloses a dolomite smelting device, including reduction jar, connecting pipe and crystallizer, wherein, reduction jar includes the reduction jar body, feeding lid and keeps off the fire board, and the crystallizer includes crystallizer I, crystallizer II, crystallizer III and crystallizer IV. The utility model discloses dolomite smelting device passes through aluminothermic reduction reaction, separates and draws the metal simple substance in the dolomite, has improved the utilization ratio to the dolomite on the one hand, and on the other hand has also reduced the harm of dolomite to environment and mankind.
Description
Technical Field
The utility model relates to a metal smelting technical field, more specifically the utility model relates to a dolomite smelting device that says so.
Background
Magnesium, zinc, lead, cadmium and arsenic in the dolomite are all low boiling point metals, heavy non-ferrous metals in a sulfuration state can be selected by adopting a flotation method, roasting is carried out to obtain calcine, then metals are extracted by using a pyrogenic process or a wet process, and gangue in the ore is high-quality dolomite and is discharged by abandonment. In the flotation process, part of magnesium, zinc, lead, cadmium and arsenic still exist in the discarded dolomite tailings, so that the discharged dolomite tailings cause great harm to the environment, even can not be used in agricultural activities, and harmful metal elements are detected in grains, vegetables and fruits in crops and fishes and shrimps in ponds after the dolomite tailings are polluted.
Magnesium, zinc, lead, cadmium, arsenic and other elements are low-boiling-point nonferrous metals, are important materials for advanced technologies such as remote sensing technology, electronic technology, new energy laser and the like, but on the other hand, the elements cause great harm to the environment and human beings in the traditional extraction process.
Therefore, the technical personnel in the field need to solve the problem of how to provide a dolomite smelting device to eliminate the harm to the environment and human beings and turn the harm into the benefit to the human beings.
Disclosure of Invention
In view of this, the utility model aims at providing a dolomite smelting device to solve not enough among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a dolomite smelting device comprises a reduction tank, a connecting pipe and a crystallizer; the reduction tank comprises a reduction tank body, a feeding cover and a fire baffle plate, wherein the reduction tank body is connected with the crystallizer through a connecting pipe, the feeding cover is arranged outside the reduction tank body and at one end far away from the connecting pipe, and the fire baffle plate is arranged inside the reduction tank body and at one end close to the connecting pipe; the crystallizer comprises a crystallizer I, a crystallizer II, a crystallizer III and a crystallizer IV, wherein the crystallizer I is connected with the reduction tank body through a connecting pipe, and the crystallizer II, the crystallizer III and the crystallizer IV are sequentially connected with the crystallizer I.
The utility model discloses dolomite is smelted device's beneficial effect lies in:
the reduction tank body adopts a tubular reaction tank, and is uniformly heated by coal gas, natural gas or other fuels to be used as a reaction vessel for thermite reaction; the feeding cover is used for adding dolomite powder and aluminum particles into the reduction tank body to be pressed into pellets and taking out the reduction slag in the reduction tank body; the fire baffle is used for separating the reduction tank body from the crystallizer and simultaneously ensuring the passing of high-temperature metal steam flow; the connecting pipe is used for connecting the reduction tank with the crystallizer; the crystallizer I is used for crystallizing high-temperature crude magnesium steam, and the crystallizer II, the crystallizer III and the crystallizer IV are used for crystallizing high-temperature zinc, lead, cadmium, arsenic and other steam to finally form a metal crystallization mixture.
Further, the dolomite smelting device further comprises a feeding cover sealing rubber mat which is arranged between the reduction tank body and the feeding cover.
The beneficial effect of adopting the further technical scheme is that the feeding cover sealing rubber mat can ensure that the feeding cover is tightly combined with the reduction tank body, and the vacuum high-temperature state of the reduction tank body is not damaged, thereby improving the reaction efficiency of the aluminothermic reduction.
Furthermore, the dolomite smelting device also comprises an aluminum silicate fiber heat-insulating layer, and the aluminum silicate fiber heat-insulating layer is arranged outside the connecting pipe.
Adopt above-mentioned further technical scheme's beneficial effect to lie in, the aluminium silicate fiber heat preservation isolates connecting pipe and outside air, has guaranteed the stability and the crystallization efficiency of high temperature metal steam flow.
Furthermore, the dolomite smelting device further comprises a crystallizer sleeve I, a crystallizer sleeve II and a heat-insulating sleeve, wherein the crystallizer sleeve I is arranged outside the crystallizer I and the crystallizer II, the crystallizer sleeve II is arranged outside the crystallizer III and the crystallizer IV, and the heat-insulating sleeve is arranged outside the crystallizer sleeve I.
The crystallizer I, the crystallizer II, the crystallizer III and the crystallizer IV are isolated from the outside air by the crystallizer sleeve I, the crystallizer sleeve II and the heat-insulating sleeve, so that the stability and the crystallization efficiency of high-temperature metal steam flow are further ensured.
Furthermore, the dolomite smelting device further comprises a crystallizer sleeve flange I and a crystallizer sleeve flange II, wherein the crystallizer sleeve I is sequentially connected with the crystallizer sleeve flange I, the crystallizer sleeve flange II and the crystallizer sleeve II.
The beneficial effect of adopting above-mentioned further technical scheme lies in, crystallizer sleeve pipe flange I and crystallizer sleeve pipe flange II guarantee the inseparable combination of crystallizer sleeve pipe I and crystallizer sleeve pipe II.
Furthermore, the dolomite smelting device further comprises a flange sealing rubber gasket, and the flange sealing rubber gasket is arranged between the crystallizer sleeve flange I and the crystallizer sleeve flange II.
Adopt above-mentioned further technical scheme's beneficial effect to lie in, the tight combination of crystallizer sleeve pipe I and crystallizer sleeve pipe II is further guaranteed to the flange seal cushion.
Further, the dolomite smelting device also comprises a vacuum connecting pipe, and the vacuum connecting pipe is arranged at the tail end of the crystallizer IV.
The beneficial effect of adopting the further technical scheme is that the vacuum connecting pipe is used for taking out the metal crystallization mixture.
The smelting method of the dolomite smelting device specifically comprises the following steps:
(1) crushing dolomite, roasting, grinding and sieving to obtain dolomite powder for later use;
(2) melting metal aluminum, and blowing air to obtain aluminum particles for later use;
(3) uniformly mixing dolomite powder and metal aluminum, and pressing into pellets;
(4) opening a feeding cover, adding the pellets into a reduction tank body, heating to 1100-1200 ℃, maintaining for 7-10h under the vacuum state of 0-10Pa, and crystallizing the formed high-temperature metal steam flow after passing through a crystallizer I, a crystallizer II, a crystallizer III and a crystallizer IV in sequence through a fire baffle to obtain a metal crystallization mixture.
Known through foretell technical scheme, compare with prior art, the beneficial effect of the utility model is as follows:
1. through thermite reduction reaction, separate and extract the metal simple substance in the dolomite, improved the utilization ratio to the dolomite on the one hand, on the other hand has also reduced the harm of dolomite to environment and human.
2. The reducing slag produced after the thermite reduction reaction can be used as the following aspects:
(1) the aluminum oxide is used as a desiliconization agent for extracting aluminum oxide from bauxite, and the aluminum oxide is extracted again, so that the aluminum element can be recycled and reused in the process;
(2) the alumina (40-50 percent of the content) and the calcium oxide (about 50 percent of the content) in the reducing slag are ground and roasted to produce high-alumina cement and refractory materials which are used in the industries of cement, metallurgy and the like;
(3) the aluminum oxide and the calcium oxide in the reducing slag are used as a deoxidizer, a desulfurizer and covering slag for producing high-quality alloy steel;
(4) the alumina and calcium oxide in the reducing slag are used to prepare special cement for early setting, early hardening, mine anchoring and the like required by emergency engineering.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a dolomite smelting device provided by the present invention;
the method comprises the following steps of 1-a reduction pot body, 2-a feeding cover, 3-a fire baffle, 4-a crystallizer I, 5-a crystallizer II, 6-a crystallizer III, 7-a crystallizer IV, 8-a feeding cover sealing rubber mat, 9-an aluminum silicate fiber heat-insulating layer, 10-a crystallizer sleeve I, 11-a crystallizer sleeve II, 12-a heat-insulating sleeve, 13-a crystallizer sleeve flange I, 14-a crystallizer sleeve flange II, 15-a flange sealing rubber mat and 16-a vacuum connecting pipe.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The embodiment of the utility model discloses a dolomite smelting device, as shown in figure 1, which comprises a reduction tank, a connecting pipe and a crystallizer. The reduction tank comprises a reduction tank body 1, a feeding cover 2 and a fire baffle 3, wherein the reduction tank body 1 adopts a tubular reaction tank, is uniformly heated by coal gas, natural gas or other fuels, is used as a reaction vessel for thermite reaction and is connected with a crystallizer through a connecting pipe; the feeding cover 2 is arranged outside the reduction tank body 1 and at one end far away from the connecting pipe, and is used for adding dolomite powder and aluminum particles into the reduction tank body 1 to be pressed into pellets and taking out reduction slag in the reduction tank body 1; the fire baffle 3 is arranged inside the reduction tank body 1 and close to one end of the connecting pipe, and is used for separating the reduction tank body 1 from the crystallizer and simultaneously ensuring the passing of high-temperature metal steam flow. The crystallizer comprises a crystallizer I4, a crystallizer II 5, a crystallizer III 6 and a crystallizer IV 7, wherein the crystallizer I4 is connected with the reduction tank body 1 through a connecting pipe and is used for crystallizing high-temperature crude magnesium steam; the crystallizer II 5, the crystallizer III 6 and the crystallizer IV 7 are sequentially connected with the crystallizer I4 and are used for crystallizing high-temperature zinc, lead, cadmium, arsenic and other steam to finally form a metal crystallization mixture.
In one embodiment, the dolomite smelting plant further comprises a feed cap sealing gasket 8, and the feed cap sealing gasket 8 is arranged between the reduction pot body 1 and the feed cap 2. The utility model discloses the sealed cushion 8 of feed cover can guarantee that feed cover 2 and reduction jar body 1 closely combine, guarantees that reduction jar body 1's vacuum high temperature state is not destroyed to improve the reaction efficiency of thermite reduction.
In one embodiment, the dolomite smelting device further comprises an aluminum silicate fiber insulating layer 9, and the aluminum silicate fiber insulating layer 9 is arranged outside the connecting pipe. The utility model discloses aluminium silicate fiber heat preservation 9 is isolated with connecting pipe and outside air, has guaranteed the stability and the crystallization efficiency of high temperature metal steam flow.
In one embodiment, the dolomite smelting device further comprises a crystallizer sleeve I10, a crystallizer sleeve II 11 and a heat-insulating sleeve 12, wherein the crystallizer sleeve I10 is arranged outside the crystallizer I4 and the crystallizer II 5, the crystallizer sleeve II 11 is arranged outside the crystallizer III 6 and the crystallizer IV 7, and the heat-insulating sleeve 12 is arranged outside the crystallizer sleeve I10. The utility model discloses crystallizer sleeve pipe I10, crystallizer sleeve pipe II 11 and insulation support 12 are isolated with I4, II 5, III 6 and IV 7 crystallizer and the outside air of crystallizer, have further guaranteed the stability and the crystallization efficiency of high temperature metal steam flow.
In one embodiment, the dolomite smelting device further comprises a crystallizer sleeve flange I13 and a crystallizer sleeve flange II 14, wherein the crystallizer sleeve I10 is sequentially connected with the crystallizer sleeve flange I13, the crystallizer sleeve flange II 14 and the crystallizer sleeve II 11. The utility model discloses closely combining of crystallizer sleeve pipe I10 and crystallizer sleeve pipe II 11 is guaranteed to crystallizer sleeve pipe flange I13 and crystallizer sleeve pipe flange II 14.
In one embodiment, the dolomite smelting device further comprises a flange sealing rubber gasket 15, and the flange sealing rubber gasket 15 is arranged between the crystallizer sleeve flange I13 and the crystallizer sleeve flange II 14. The utility model discloses the sealed cushion of flange 15 further guarantees the inseparable combination of crystallizer sleeve pipe I10 and crystallizer sleeve pipe II 11.
In one embodiment, the dolomite smelting device further comprises a vacuum connecting pipe 16, and the vacuum connecting pipe 16 is arranged at the tail end of the crystallizer IV 7. The utility model discloses vacuum nozzle 16 is used for taking out the metal crystallization mixture.
The embodiment of the utility model also provides a smelting method of above-mentioned dolomite smelting device, specifically includes the following steps:
(1) crushing dolomite to 20mm, roasting at 1000 ℃ for 2.5h, grinding, and sieving with a 100-mesh sieve to obtain dolomite powder for later use;
(2) heating metal aluminum to 680 ℃ for melting, and then blowing air to obtain aluminum particles with the particle size of 0.8mm for later use;
(3) uniformly mixing dolomite powder and metal aluminum, and pressing into pellets;
(4) opening a feeding cover 2, adding the pellets into a reduction tank body 1, heating to 1150 ℃, maintaining for 8 hours in a vacuum state of 5Pa, and crystallizing formed high-temperature metal steam flow after passing through a crystallizer I4, a crystallizer II 5, a crystallizer III 6 and a crystallizer IV 7 in sequence through a fire damper plate 3 to obtain a metal crystal mixture;
(5) and (3) rectifying the metal crystal mixture to respectively obtain industrial crystals of magnesium, zinc, lead, cadmium and arsenic.
Known through foretell technical scheme, compare with prior art, the beneficial effect of the utility model is as follows:
1. through thermite reduction reaction, separate and extract the metal simple substance in the dolomite, improved the utilization ratio to the dolomite on the one hand, on the other hand has also reduced the harm of dolomite to environment and human.
2. The reducing slag produced after the thermite reduction reaction can be used as the following aspects:
(1) the aluminum oxide is used as a desiliconization agent for extracting aluminum oxide from bauxite, and the aluminum oxide is extracted again, so that the aluminum element can be recycled and reused in the process;
(2) the alumina with the content of 40-50 percent and the calcium oxide with the content of about 50 percent in the reducing slag are utilized to produce high-alumina cement and refractory materials after grinding and roasting, and the high-alumina cement and refractory materials are used for industries such as cement, metallurgy and the like;
(3) the aluminum oxide and the calcium oxide in the reducing slag are used as a deoxidizer, a desulfurizer and covering slag for producing high-quality alloy steel;
(4) the alumina and calcium oxide in the reducing slag are used to prepare special cement for early setting, early hardening, mine anchoring and the like required by emergency engineering.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (7)
1. A dolomite smelting device is characterized by comprising a reduction tank, a connecting pipe and a crystallizer;
the reduction tank comprises a reduction tank body, a feeding cover and a fire baffle plate, the reduction tank body is connected with the crystallizer through the connecting pipe, the feeding cover is arranged outside the reduction tank body and at one end far away from the connecting pipe, and the fire baffle plate is arranged inside the reduction tank body and at one end close to the connecting pipe;
the crystallizer comprises a crystallizer I, a crystallizer II, a crystallizer III and a crystallizer IV, wherein the crystallizer I is connected with the reduction tank body through the connecting pipe, and the crystallizer II, the crystallizer III and the crystallizer IV are sequentially connected with the crystallizer I.
2. The dolomite smelting device according to claim 1, further comprising a feeding cover sealing rubber gasket, wherein the feeding cover sealing rubber gasket is arranged between the reduction tank body and the feeding cover.
3. The dolomite smelting device according to claim 1, further comprising an aluminum silicate fiber insulating layer disposed outside the connecting pipe.
4. The dolomite smelting device according to claim 1, further comprising a crystallizer sleeve I, a crystallizer sleeve II and a heat-insulating sleeve, wherein the crystallizer sleeve I is arranged outside the crystallizer I and the crystallizer II, the crystallizer sleeve II is arranged outside the crystallizer III and the crystallizer IV, and the heat-insulating sleeve is arranged outside the crystallizer sleeve I.
5. A dolomite smelting device according to claim 4, further comprising a crystallizer sleeve flange I and a crystallizer sleeve flange II, wherein the crystallizer sleeve I is sequentially connected with the crystallizer sleeve flange I, the crystallizer sleeve flange II and the crystallizer sleeve II.
6. A dolomite smelting device according to claim 5, further comprising a flange sealing rubber gasket, wherein the flange sealing rubber gasket is arranged between the crystallizer sleeve flange I and the crystallizer sleeve flange II.
7. The dolomite smelting device according to claim 1, further comprising a vacuum connection pipe, wherein the vacuum connection pipe is arranged at the tail end of the crystallizer IV.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120299895.9U CN214361603U (en) | 2021-02-02 | 2021-02-02 | Dolomite smelting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120299895.9U CN214361603U (en) | 2021-02-02 | 2021-02-02 | Dolomite smelting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112981098A (en) * | 2021-02-02 | 2021-06-18 | 朱广东 | Dolomite smelting device and smelting method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112981098A (en) * | 2021-02-02 | 2021-06-18 | 朱广东 | Dolomite smelting device and smelting method thereof |
| CN112981098B (en) * | 2021-02-02 | 2022-09-20 | 朱广东 | Dolomite smelting device and smelting method thereof |
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