CN113578211B - Energy-saving efficient oxidation equipment for zinc oxide production - Google Patents
Energy-saving efficient oxidation equipment for zinc oxide production Download PDFInfo
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- CN113578211B CN113578211B CN202110884061.9A CN202110884061A CN113578211B CN 113578211 B CN113578211 B CN 113578211B CN 202110884061 A CN202110884061 A CN 202110884061A CN 113578211 B CN113578211 B CN 113578211B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J12/00—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor
- B01J12/005—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor carried out at high temperatures, e.g. by pyrolysis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J12/00—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor
- B01J12/02—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor for obtaining at least one reaction product which, at normal temperature, is in the solid state
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G9/00—Compounds of zinc
- C01G9/02—Oxides; Hydroxides
- C01G9/03—Processes of production using dry methods, e.g. vapour phase processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00092—Tubes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The invention relates to the technical field of zinc oxide production equipment, and particularly discloses energy-saving efficient oxidation equipment for zinc oxide production; the device comprises a kiln, an oxidation chamber, a collecting cover and a flue gas pipeline, wherein a spiral coil is fixedly connected to the inner wall of the oxidation chamber, a plurality of air outlets are uniformly formed in the lower end of the coil, the air outlets are obliquely upwards arranged towards the center of the oxidation chamber, the upper end of the coil is connected with an air supply pipe, and the air supply pipe is arranged along the central axis of the flue gas pipeline, and the end part of the air supply pipe extends out of the flue gas pipeline and then is connected with a fan; the equipment disclosed by the invention can fully utilize the heat in the high-temperature flue gas, reduces the energy consumption of the existing zinc oxide kiln which needs to heat the fed cold air, and reduces the energy consumption in the whole zinc oxide oxidation process by about 13% by combining with the design of a sealing and heat-insulating structure, so that the equipment has the advantages of energy conservation and environmental protection, and can be widely popularized and applied in the industry.
Description
Technical Field
The invention relates to the technical field of zinc oxide production equipment, and particularly discloses energy-saving efficient oxidation equipment for zinc oxide production.
Background
In the dry preparation process of zinc oxide, generally, zinc ore materials are heated to form molten liquid, the solution is continuously evaporated to form zinc vapor, the zinc vapor is contacted with the fed air to oxidize, then cooled, and finally zinc oxide in the air is deposited and collected through a filter bag. The oxidation equipment for zinc oxide adopts a kiln at present, a collecting cover is arranged above the kiln, an oxidation chamber is arranged between the collecting cover and the kiln, and the top end of the collecting cover is connected with a flue gas pipeline. In the dry zinc oxide preparing process, zinc ore material is fed into a kiln for heating, and meanwhile, an air supply port is arranged at the side of an oxidation chamber, and cold air is fed into the oxidation chamber through the air supply port to oxidize gaseous zinc.
A zinc oxide kiln, such as disclosed in patent application 2010106004811, includes an oxidation chamber disposed in an upper portion of the kiln; a hearth disposed below the oxidation chamber; a combustion chamber disposed below the furnace and in communication with the furnace; a burner disposed below the combustion chamber; a flue communicated with the hearth; a zinc melting pot arranged in the flue and an evaporating pot arranged in the hearth, comprising a volatilization channel extending to the oxidation chamber; said invented zinc oxide kiln is the most widely used zinc oxide production equipment, and in the course of use the cold air is fed into the oxidation chamber by means of air inlet formed at side of oxidation chamber so as to make oxidation of gaseous zinc. However, the equipment has high energy consumption in the use process and poor oxidation effect on gaseous zinc. On one hand, the air supply port is arranged at the side of the kiln body, so that the tightness of the whole equipment is poor, and the heat in the kiln body is easy to be dispersed into the air; secondly, cold air is sent into the oxidation chamber through the air supply opening, and when the cold air enters the oxidation chamber, the cold air needs to absorb heat to heat the oxidation chamber, so that certain energy consumption is required to be consumed for heating the cold air; the oxidation effect of the gaseous zinc is not good because the cold air is sent in only one direction from one air supply port, so that the cold air cannot fully contact with the gaseous zinc in the kiln body to realize oxidation. Aiming at the defects of high energy consumption, poor oxidation effect and the like of the existing zinc oxide kiln, the invention provides energy-saving efficient oxidation equipment capable of effectively solving the technical problems.
Disclosure of Invention
The invention aims to overcome the defects of high energy consumption, poor oxidation effect and the like of the conventional zinc oxide kiln, and provides energy-saving efficient oxidation equipment capable of effectively solving the technical problems.
The invention is realized by the following technical scheme:
the utility model provides an energy-saving high-efficient oxidation equipment for zinc oxide production, includes kiln, oxidation chamber, collects cover and flue gas pipeline, fixedly connected with heliciform coil pipe on the inner wall of oxidation chamber, a plurality of air outlets have evenly been seted up to the lower extreme of coil pipe, and the air outlet slope upwards, towards the center setting of oxidation chamber, the upper end of coil pipe is connected with the blast pipe, the blast pipe is connected with the fan after setting up and the tip stretches out flue gas pipeline along flue gas pipeline's axis.
In the process of producing zinc oxide, cold air fed by a fan is firstly subjected to heat exchange with high-temperature flue gas in a flue gas pipeline to be preheated, so that the air has a certain amount of heat before entering an oxidation chamber, then the air can be further heated to a higher temperature when entering a spiral coil in the oxidation chamber and then is discharged from an air outlet, and the discharged high-temperature air can be directly contacted with upward-moving gaseous zinc, so that the rapid oxidation of the gaseous zinc is realized. In addition, because the heated high-temperature air is sent out from a plurality of air outlets at the lower end of the coil pipe, the sent hot air moves from the periphery of the inner wall of the oxidation chamber to the center of the oxidation chamber, so that the upward-moving gaseous zinc is fully contacted with the hot air, and the gaseous zinc is efficiently and fully oxidized.
As a further arrangement of the scheme, a hollow connecting column is fixedly arranged at the inner center of the collecting cover, the air supply pipe penetrates through the hollow connecting column, a plurality of first conical ring plates are connected to the hollow connecting column, a plurality of second conical ring plates are connected to the inner wall of the collecting cover, the second conical ring plates and the first conical ring plates are arranged in the collecting cover at intervals and in a staggered mode, and a baffling channel is formed between the second conical ring plates and the first conical ring plates; the flow deflection channel formed between the conical ring plate II and the conical ring plate I can prolong the flow time of the flue gas in the collecting cover, ensure that high-temperature air and unoxidized gaseous zinc are fully oxidized again in the collecting cover, and effectively ensure the purity of the obtained zinc oxide.
As a further arrangement of the scheme, the diameter of the air supply pipe is one third of the inner diameter of the flue gas pipeline; the diameter of the blast pipe is important, on one hand, the control can send enough air and ensure that the reacted flue gas can smoothly enter the cooling equipment along the flue gas pipeline for cooling and deposition collection, and the related calculation shows that the diameter of the blast pipe is set to be one third of the inner diameter of the flue gas pipeline.
As a further arrangement of the above solution, both the coil pipe and the air supply pipe are made of carbon steel material with excellent heat conducting property; the coil pipe and the blast pipe made of carbon steel ensure good heat exchange effect on air, and simultaneously ensure that the coil pipe and the blast pipe have higher high temperature resistance and meet the high temperature oxidation process of zinc oxide.
As the scheme is further provided, the kiln, the oxidation chamber, the collection cover and the flue gas pipeline are sequentially connected in a sealing manner from bottom to top, and the outer walls of the oxidation chamber and the collection cover are made of heat insulation materials; the kiln, the oxidation chamber, the collecting cover and the flue gas pipeline are in sealing connection, so that internal heat dissipation can be effectively prevented, meanwhile, the outer walls of the oxidation chamber and the collecting cover are made of heat insulation materials, the heat preservation effect of the whole equipment can be further guaranteed, heat dissipation is prevented, and the energy consumption of the whole equipment is reduced.
As a further arrangement of the scheme, a plurality of evaporating pans are arranged in the kiln, and the upper end openings of the evaporating pans are communicated with the oxidation chamber; the kiln is arranged conventionally, so that gaseous zinc at the evaporation position in each evaporation pot can enter the oxidation chamber.
As a further arrangement of the scheme, the flue gas pipeline is formed by connecting a vertical section and a horizontal section, the lower end of the vertical section is connected with the collecting cover, one end of the horizontal section is connected with the upper end of the vertical section, and the other end of the horizontal section is connected with the negative pressure system.
The beneficial effects are that:
1) Compared with the existing zinc oxide kiln, the energy-saving efficient oxidation equipment disclosed by the invention has the advantages that the whole equipment is sealed and arranged in a heat-preserving way, and the heat in the equipment is not easy to dissipate in the zinc oxide oxidation process; meanwhile, the air is sent into the oxidation chamber through the air supply pipe along the flue gas pipeline, the sent cold air can be subjected to heat exchange with high-temperature flue gas in the flue gas pipeline for preheating, then the cold air is heated in the coil pipe, and the heated high-temperature air is directly contacted with gaseous zinc for oxidation after being discharged from the air outlet, so that the heat in the high-temperature flue gas can be fully utilized by the design of the whole air sending system, the energy consumption of the traditional zinc oxide kiln for heating the sent cold air is reduced, and the energy consumption in the whole zinc oxide oxidation process is reduced by about 13% by combining with the design of a sealing and heat-insulating structure.
2) The air fed into the energy-saving efficient oxidation equipment is conveyed from the periphery of the oxidation chamber to the center, and the high-temperature air is contacted with gaseous zinc in the conveying process to be fully oxidized; meanwhile, the baffle structure arranged in the collecting cover can prolong the time of the flue gas in the collecting cover, so that gaseous zinc which is not completely oxidized in the flue gas and high-temperature air have enough reaction time to oxidize, the oxidation effect and efficiency in the zinc oxide preparation process are greatly improved, the structural design of the collecting cover is simple, but the structure brings remarkable technical effect to the zinc oxide oxidation process, and the using effect of the whole equipment is excellent and the practicability is stronger.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the internal plan structure of the oxidation chamber, the collection hood and the flue gas duct according to the present invention;
FIG. 3 is a schematic perspective view of a kiln according to the invention;
FIG. 4 is a schematic perspective view of a blower tube and coil in accordance with the present invention;
fig. 5 is a schematic perspective sectional structure of a collecting hood in embodiment 2 of the present invention.
Wherein:
1-kiln, 101-evaporating crucible, 102-charging opening, 2-oxidation chamber, 3-collecting hood, 301-hollow connecting column, 302-connecting rod, 4-flue gas pipeline, 401-vertical section, 402-horizontal section, 5-blast pipe, 6-coil pipe, 601-air outlet, 7-baffle plate assembly, 701-first conical annular plate, 702-second conical annular plate.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", and "top" are used in conjunction with the following terms,
The positional or positional relationship indicated by "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the positional or positional relationship shown in the drawings. These terms are only used to better describe the present invention and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present invention will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail with reference to fig. 1 to 5, and examples.
Example 1
Embodiment 1 discloses an energy-saving efficient oxidation equipment is arranged in oxidation treatment in zinc oxide production process, and its main structure includes bottom kiln 1, oxidation chamber 2, collection cover 3 and flue gas pipeline 4, and wherein kiln 1 is current kiln body structure to be provided with a plurality of evaporating crucible 101 in kiln 1, evaporating crucible's upper end opening sets up to be provided with charge door 102 in kiln 1's side, so for prior art reason not to make the description here.
The oxidation chamber 2 is arranged at the upper end of the kiln 1, and an upper end opening of the evaporation crucible 101 is communicated with an inner cavity of the oxidation chamber 2, so that zinc raw materials in the evaporation crucible 101 can enter the oxidation chamber 2 from the upper end opening when being evaporated into gaseous zinc. The oxidation chamber 2 may be provided in a cylindrical shape or a rectangular parallelepiped shape, and the outer wall of the entire oxidation chamber 2 is made of a heat insulating material.
The collecting hood 3 is connected to the upper end of the oxidation chamber 2, wherein the collecting hood 3 is adapted to the shape of the oxidation chamber 2 and may be provided in a conical or pyramid shape. At the same time, the flue gas duct 4 is connected to the top end of the collecting hood 3, while the outer end of the flue gas duct 4 is connected to a negative pressure system (not shown). The whole oxidation equipment can be in a sealed heat preservation state through the sealing connection among the bottom kiln 1, the oxidation chamber 2 and the collection cover 3, and heat dissipation in the oxidation equipment can be effectively prevented. The outer wall of the collecting cover 3 is also made of heat insulation materials, the flue gas pipeline 4 is formed by connecting a vertical section 401 and a horizontal section 402, wherein the vertical section 401 is connected with the top end of the collecting cover 3, one end of the horizontal section 402 is connected with the upper end of the vertical section 401, and the other end of the horizontal section is connected with a negative pressure system.
The biggest improvement of this embodiment 1 and the current zinc oxide kiln lies in the setting of air feeding system, and this implementation is with the sealed setting of oxidation chamber, is provided with a blast pipe 5 that sets up along flue gas pipeline 4 self axis in flue gas pipeline 4 simultaneously, and flue gas pipeline 4 is connected with the fan (not shown in the figure) is stretched out to blast pipe 5's one end, and the other end stretches into in the oxidation chamber 2 to blast pipe 5's diameter is about 1/3 of flue gas pipeline 4 internal diameter when specifically setting up, guarantees that flue gas such as zinc oxide after the oxidation can circulate smoothly in flue gas pipeline 4. The lower end of the blast pipe 5 extending into the oxidation chamber 2 is connected with a spiral coil pipe 6, both the blast pipe 5 and the coil pipe 6 in the embodiment are made of carbon steel materials with excellent heat conduction performance, and the spiral coil pipe 6 can be welded and fixed with the inner wall of the oxidation chamber 2. Finally, a plurality of air outlets 601 are formed in an annular array at the lower end of the spiral coil 6, and the plurality of air outlets 601 are arranged obliquely upwards and towards the center of the oxidation chamber 2 when being specifically arranged.
In this embodiment, the air feeding system is set, external air is fed into the air feeding pipe 5 by a fan, when air enters the oxidation chamber 2 along the air feeding pipe 5 and the coil pipe 6, the air feeding pipe 5 made of carbon steel performs heat exchange with high-temperature flue gas in the flue gas pipeline 3 to preheat, then further heats in the coil pipe 6, and finally discharges high-temperature air from the air outlet 601 to be connected with the upward moving gaseous zinc to trigger oxidation. The whole oxidation equipment is arranged in a sealing way through the whole oxidation equipment, and meanwhile, the flue gas is preheated, so that the energy consumption of the whole zinc oxide oxidation equipment is effectively reduced, and the sent hot air is sent out from the periphery of the oxidation chamber 2, so that the oxidation equipment can be fully contacted with the upward-moving gaseous zinc, and the oxidation effect in the zinc oxide production process is effectively ensured.
Example 2
Example 2 discloses an improved energy-saving efficient oxidation device for zinc oxide production based on example 1, which adopts the oxidation main body and the air feeding system disclosed in example 1 and further arranges a collecting cover.
Referring to fig. 5, in embodiment 2, a vertical hollow connecting column 301 is further disposed at the center of the collecting hood 3, and a plurality of connecting rods 302 are uniformly welded between the inner wall of the lower end of the collecting hood 3 and the hollow connecting column 301, and the plurality of connecting rods 302 can stably dispose the hollow connecting column 301 in the inner cavity of the collecting hood 3, and meanwhile, the air supply pipe 5 is disposed through the hollow connecting column 301 when extending into the collecting hood 3.
A baffle assembly 7 is disposed between the inner wall of the collection housing 3 and the hollow connection post 301, wherein the baffle assembly 7 comprises a plurality of first tapered annular plates 701 connected with the hollow connection post 301 and a plurality of second tapered annular plates 702 connected with the inner wall of the collection housing 3, wherein the first tapered annular plates 701 and the second tapered annular plates 702 are disposed at intervals and offset from each other, thereby forming a plurality of baffle channels in the collection housing 3. When the flue gas (the flue gas contains gaseous zinc, hot air, gaseous zinc oxide and other components) moves along the baffling channel in the collecting cover 3, the time of the flue gas in the collecting cover 3 can be prolonged, so that the gaseous zinc and the hot air in the flue gas can have longer oxidation reaction time, the gaseous zinc in the flue gas can be fully oxidized to obtain zinc oxide, and the oxidation effect of the zinc oxide is greatly improved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. The utility model provides an energy-saving high-efficient oxidation equipment for zinc oxide production, includes kiln (1), oxidation chamber (2), collects cover (3) and flue gas pipeline (4), a serial communication port, fixedly connected with heliciform coil pipe (6) on the inner wall of oxidation chamber (2), a plurality of air outlets (601) have evenly been seted up to the lower extreme of coil pipe (6), and air outlet (601) slope upwards, towards the center setting of oxidation chamber (2), the upper end of coil pipe (6) is connected with blast pipe (5), blast pipe (5) are connected with the fan after setting up and tip stretches out flue gas pipeline (4) along the axis of flue gas pipeline (4).
2. The energy-saving efficient oxidation equipment for zinc oxide production according to claim 1, wherein a hollow connecting column (301) is fixedly arranged at the inner center of the collecting cover (3), the air supply pipe (5) penetrates through the hollow connecting column (301), a plurality of first conical ring plates (701) are connected to the hollow connecting column (301), a plurality of second conical ring plates (702) are connected to the inner wall of the collecting cover (3), the second conical ring plates (702) and the first conical ring plates (701) are arranged at intervals and in a staggered mode in the collecting cover, and a baffling channel is formed between the second conical ring plates (702) and the first conical ring plates (701).
3. Energy-efficient oxidation plant for zinc oxide production according to claim 1 or 2, characterized in that the diameter of the blast pipe (5) is one third of the inner diameter of the flue gas duct (4).
4. An energy efficient oxidation plant for zinc oxide production according to claim 3, characterized in that the coil (6) and the blast pipe (5) are both made of carbon steel material with excellent heat conducting properties.
5. The energy-saving efficient oxidation equipment for zinc oxide production according to claim 1, wherein the kiln (1), the oxidation chamber (2), the collection cover (3) and the flue gas pipeline (4) are sequentially connected in a sealing mode from bottom to top, and the outer walls of the oxidation chamber (2) and the collection cover (3) are made of heat insulation materials.
6. The energy-saving efficient oxidation equipment for zinc oxide production according to claim 5, wherein a plurality of evaporation pans (101) are arranged in the kiln (1), and the upper end openings of the evaporation pans (101) are communicated with the oxidation chamber (2).
7. The energy-saving efficient oxidation equipment for zinc oxide production according to claim 1, wherein the flue gas pipeline (4) is formed by connecting a vertical section (401) and a horizontal section (402), the lower end of the vertical section (401) is connected with the collecting cover (3), one end of the horizontal section (402) is connected with the upper end of the vertical section (401), and the other end is connected with a negative pressure system.
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| CN202110884061.9A CN113578211B (en) | 2021-08-03 | 2021-08-03 | Energy-saving efficient oxidation equipment for zinc oxide production |
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| CN202110884061.9A CN113578211B (en) | 2021-08-03 | 2021-08-03 | Energy-saving efficient oxidation equipment for zinc oxide production |
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| CN114044536B (en) * | 2021-12-09 | 2023-09-01 | 安徽骏马新材料科技股份有限公司 | Environment-friendly red lead preparation process |
| CN114177856B (en) * | 2021-12-09 | 2023-07-18 | 安徽骏马新材料科技股份有限公司 | Environment-friendly red lead production equipment |
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| EP0378995A1 (en) * | 1989-01-18 | 1990-07-25 | Matsushita Electric Industrial Co., Ltd. | Method of producing zinc oxide whiskers |
| CN202508886U (en) * | 2012-03-26 | 2012-10-31 | 杨朝正 | Energy-saving furnace for producing zinc oxide through indirect method |
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