CN117232269A

CN117232269A - Metallurgical kiln with smoke abatement function

Info

Publication number: CN117232269A
Application number: CN202310715596.2A
Authority: CN
Inventors: 庄爱珠
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2023-12-15

Abstract

The invention discloses a metallurgical kiln with a smoke removal function, which comprises the following steps: the furnace body, the furnace body top is equipped with the top cap, flue gas treatment mechanism is installed at the top of top cap, flue gas treatment mechanism includes from left to right installs fume tube and flue gas treatment case on the top cap, fume tube installs on the furnace body, fume tube's internally mounted has filter unit, the fan is installed at the top of flue gas treatment case, the air inlet of fan passes through the pipeline and the inside intercommunication in top of fume tube, the export of fan passes through the pipeline and communicates with the inside bottom of flue gas treatment case. This metallurgical kiln with smoke abatement function handles the flue gas through flue gas treatment mechanism, prevents that the indiscriminate outer blowdown of flue gas from dying the atmosphere, and the flue gas is earlier after filter assembly preliminary filtration, introduces the inside of flue gas treatment box through the fan, carries out further treatment to the flue gas through the inside treatment fluid of flue gas treatment box, has improved the treatment effect of flue gas greatly.

Description

Metallurgical kiln with smoke abatement function

Technical Field

The invention relates to the technical field of metallurgical production, in particular to a metallurgical kiln with a smoke removal function.

Background

Zinc oxide is an inorganic substance, poorly soluble in water, and soluble in acids and strong bases. Zinc oxide is a commonly used chemical additive and is widely applied to the manufacture of products such as plastics, silicate products, synthetic rubber, lubricating oil, paint coatings, ointment, adhesives, foods, batteries, flame retardants and the like. The zinc oxide has larger energy band gap and exciton binding energy, high transparency and excellent normal-temperature luminous performance, and can be applied to products such as liquid crystal displays, thin film transistors, light-emitting diodes and the like in the semiconductor field. In addition, the micro-particulate zinc oxide also starts to function as a kind of nanomaterial in the related art. The zinc oxide powder is usually produced by calcining, decomposing or oxidizing in a kiln, more dust is generated in the production environment, and an operator often needs to wear a dust mask, so that zinc casting heat can be caused if a human body sucks zinc oxide smoke dust. The symptoms include intraoral metallic taste, thirst, dry throat, inappetence, chest tightness, dry cough, headache, dizziness, soreness of limbs, high fever and aversion to cold. A large amount of zinc oxide dust can clog sebaceous ducts and cause skin pimples, eczema.

The existing metallurgical kiln with the smoke removal function is easy to overflow smoke dust in the working process, so that environmental pollution is easy to cause, and finally generated zinc oxide powder is difficult to collect, bag and store. For example, chinese patent publication No. CN201059863Y discloses a kiln for producing premelted metallurgical auxiliary materials in metallurgical industry, comprising a feed inlet, a discharge outlet, a kiln pool, a gas inlet, and an air inlet channel, wherein the feed inlet of the device is connected with an external automatic feeder, arranged at two sides of the kiln pool, and the discharge outlet is arranged at the front of the kiln pool and is arranged obliquely downwards; the external gas producer is communicated with the kiln pool through a gas inlet; the rear part of the kiln pool is provided with a flue which is communicated with a dust channel at the lower part of the kiln pool, and the air inlet channel and the dust channel are alternately arranged. The advantages are that: the kiln is a regenerative kiln, tail gas recovery is carried out, waste heat is fully utilized, and air entering the kiln is heated to 800 ℃ from normal temperature; the gas is converted into fuel gas through the gas producer, and the fuel gas is mixed with air for combustion, so that the energy consumption is reduced, and the combustion is sufficient. In the kiln production process, automatic feeding and automatic discharging are performed, so that the labor intensity is reduced; the emission of dust and carbon dioxide is reduced, but the generated dust is still discharged into the air.

For this purpose, a metallurgical kiln with a smoke abatement function is proposed.

Disclosure of Invention

The invention aims to provide a metallurgical kiln with a smoke removal function, which is characterized in that a feed inlet and a side door are arranged, when zinc ingots or zinc slag are heated, smoke dust is greatly prevented from overflowing from a zinc melting pot, and a dust collector and a material guide pipe orifice are arranged, so that the efficiency of collecting zinc oxide powder can be greatly enhanced, meanwhile, zinc oxide powder is prevented from overflowing into the air, the production environment of zinc oxide is improved, workers are effectively prevented from inhaling zinc oxide smoke dust by mistake, during production, smoke is treated by a smoke treatment mechanism, the smoke is prevented from being polluted by the outside of a person, the smoke is firstly subjected to preliminary filtration by a filter assembly, and then is further treated by a treatment liquid in the smoke treatment box after being introduced into the smoke treatment box by a fan, so that the treatment effect of the smoke is greatly improved, and the problems in the background technology are solved.

In order to achieve the above purpose, the present invention provides the following technical solutions: a metallurgical furnace having a smoke abatement function, comprising: the furnace body, furnace body inside is equipped with combustion chamber, furnace, oxidation chamber and flue, the combustion chamber is in the bottom of furnace body, the combustor is installed to the combustion chamber bottom, the furnace is in the combustion chamber top, the oxidation chamber is in the top of furnace body, the oxidation chamber is in the furnace top, install fan and dust catcher on the wall of oxidation chamber, the combustion chamber with the furnace communicates with each other, the flue with the furnace intercommunication, the quantity of flue sets up four at least, the flue top is equipped with and melts zinc pot, it has the feed inlet to melt zinc pot top intercommunication, the feed inlet is in furnace body outer wall surface, it has the honeycomb duct to melt zinc pot in one side intercommunication of feed inlet, the honeycomb duct intercommunication has the evaporation pot, the evaporation pot is in inside the furnace, the evaporation pot top with the inside intercommunication of oxidation chamber, the furnace body top is equipped with the top cap, flue gas treatment mechanism is installed at the top of top cap, flue gas treatment mechanism includes from controlling to right side install the exhaust pipe and handle the case on the top, the exhaust pipe is in the exhaust pipe is through the exhaust fan and the inside of the exhaust gas treatment box, the exhaust pipe is installed to the top through the exhaust pipe, the exhaust pipe is in the inside the filter box is installed to the top the filter box.

Through adopting above-mentioned technical scheme, during the in-service use, place zinc ingot or zinc slag in melting zinc pot by the feed inlet, zinc liquid that forms after zinc ingot or zinc slag are heated and melt in melting zinc pot gets into the evaporating pot through the honeycomb duct, the zinc liquid is in evaporating pot after the further heating of high temperature flue gas, volatilize to in the oxidation chamber by evaporating pot top opening, react with the air that enters into the oxidation chamber from the fan, generate zinc oxide, the zinc oxide of formation is after cooling, draw the zinc oxide powder in the oxidation chamber by the dust catcher, collect the bagging-off of weighing, when producing, handle the flue gas through flue gas treatment mechanism, prevent that the outside blowdown of flue gas is polluted the atmosphere, the flue gas is first after the prefiltering through filter module, introduce the inside of flue gas treatment box through the fan, carry out further treatment to the flue gas through the inside treatment fluid of flue gas treatment box, the treatment effect of flue gas has been improved greatly.

Preferably, a side door is arranged on the feed inlet.

By adopting the technical scheme, after the zinc ingot or the zinc slag is placed in the zinc melting pot, the side door is closed, so that the smoke dust can be prevented from overflowing from the feed inlet.

Preferably, rectangular holes are formed in two sides of the feeding hole, and the side doors are arranged in the rectangular holes.

By adopting the technical scheme, the side door can be moved left and right.

Preferably, a handle is arranged on the surface of the side door.

By adopting the technical scheme, the handle is grasped to conveniently open and close the side door.

Preferably, the air inlet of the fan is provided with a protective net.

By adopting the technical scheme, foreign matters are prevented from entering the fan.

Preferably, the output end of the dust collector is provided with a material guide pipe orifice.

By adopting the technical scheme, the storage bag or the discharging pipeline is convenient to connect.

Preferably, the filter component comprises a plurality of filter screens, the aperture of each filter screen is gradually reduced from bottom to top, a connecting rod is welded between the two filter screens, an annular bearing plate is welded on the inner wall of the smoke exhaust pipe, the filter component is lapped on the annular bearing plate, a cover plate is welded on the top of the rectangular portable rod on the uppermost layer, a cover plate is in threaded connection with the top of the smoke exhaust pipe, and a portable rod is welded on the top of the cover plate.

Through adopting above-mentioned technical scheme, improved the filter effect through the effect of a plurality of filter screens, make things convenient for filter component's dismouting through the dismouting apron, not only conveniently pull up filter component through the rectangle portable pole, the rectangle portable pole is jacked at the bottom of apron simultaneously to filter component's spacing, integrative multi-purpose.

Preferably, the liquid filling opening is formed in the top of the flue gas treatment box, a rubber plug is plugged in the liquid filling opening, an exhaust pipe is arranged at the top of the flue gas treatment box, and a flip is arranged at the top of the exhaust pipe through a hinge.

By adopting the technical scheme, the treatment liquid is conveniently added through the liquid filling port.

Preferably, the right side of the top of the flue gas treatment box is provided with a liquid discharge pipe, the liquid discharge pipe is provided with a control valve, and the bottom of the flue gas treatment box is provided with an inclined plate.

By adopting the technical scheme, the control valve is opened to conveniently discharge the treatment liquid, and the treatment liquid is completely discharged through the sloping plate.

Compared with the prior art, the invention has the beneficial effects that:

this metallurgical kiln with smoke abatement function, through setting up feed inlet and side door, when heating zinc ingot or zinc dross, very big prevent that the smoke and dust from spilling over from melting zinc pot, through setting up dust catcher and guide mouth of pipe, can be very big reinforcing collect the efficiency of zinc oxide powder, prevent simultaneously that zinc oxide powder from spilling over to the air, make the production environment of zinc oxide improve, effectually prevent that the staff from breathing in zinc oxide smoke and dust by mistake, when producing, handle the flue gas through flue gas treatment mechanism, prevent that the outside blowdown of flue gas is disordered from dying the atmosphere, the flue gas is earlier after filter assembly preliminary filtration, introduce the inside of flue gas treatment box through the fan, carry out further treatment to the flue gas through the inside treatment fluid of flue gas treatment box, the treatment effect of flue gas has been improved greatly.

Drawings

FIG. 1 is a schematic perspective view of a metallurgical furnace of the present invention;

FIG. 2 is a schematic front view of a metallurgical furnace according to the invention;

FIG. 3 is a schematic cross-sectional front view of a metallurgical furnace with smoke abatement in accordance with the present invention;

FIG. 4 is a schematic top cross-sectional view of a metallurgical furnace with smoke abatement in accordance with the present invention;

fig. 5 is a schematic cross-sectional front view of the flue gas treatment mechanism of the present invention.

In the figure: 1. a furnace body; 11. a combustion chamber; 111. a burner; 112. a furnace; 12. an oxidation chamber; 13. a top cover; 2. a flue; 3. a zinc melting pot; 31. a feed inlet; 311. a side door; 312. a rectangular hole; 313. a handle; 32. a flow guiding pipe; 4. an evaporating pot; 5. a blower; 6. a dust collector; 61. a material guide pipe orifice; 7. a protective net; 8. a smoke exhaust pipe; 810. a filter assembly; 811. a filter screen; 812. a connecting rod; 813. a rectangular hand lever; 820. an annular bearing plate; 830. a cover plate; 831. a hand lever; 840. a blower; 850. a flue gas treatment box; 851. a liquid adding port; 852. a rubber stopper; 853. an exhaust pipe; 854. a flip cover; 855. a liquid discharge pipe; 856. a control valve; 857. and a sloping plate.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-5, a metallurgical furnace with smoke abatement comprising: the furnace body 1, the furnace body 1 is internally provided with a combustion chamber 11, a hearth 112, an oxidation chamber 12 and a flue 2, the combustion chamber 11 is arranged at the bottom of the furnace body 1, a burner 111 is arranged at the bottom of the combustion chamber 11, the hearth 112 is arranged above the combustion chamber 11, the oxidation chamber 12 is arranged at the top of the furnace body 1, a top cover 13 is arranged at the top of the furnace body 1 for cleaning the inside of the oxidation chamber 12, the top cover 13 is arranged at the top of the oxidation chamber 12, the furnace chamber 12 is arranged above the hearth 112, a fan 5 and a dust collector 6 are arranged on the wall of the oxidation chamber 12 for connecting a storage bag or a discharging pipeline conveniently, the output end of the dust collector 6 is provided with a material guide port 61, the protection net 7 is arranged at the air inlet of the fan 5 for preventing foreign matters from entering the inside of the fan 5, the combustion chamber 11 is communicated with the hearth 112, the flue 2 is at least four, the top of the flue 2 is provided with a zinc melting pot 3, the top of the zinc melting pot 3 is communicated with a material inlet 31, the feed port 31 is arranged on the outer wall surface of the furnace body 1, in order to prevent smoke and dust from overflowing from the feed port 31, the side door 311 is arranged on the feed port 31, after a zinc ingot or zinc slag is placed in the zinc melting pot 3, the side door 311 can be closed, rectangular holes 312 are formed in two sides of the feed port 31, the side door 311 is arranged in the rectangular holes 312, the side door 311 can be moved left and right, the side door 311 is conveniently opened and closed, a handle 313 is arranged on the surface of the side door 311, the zinc melting pot 3 is communicated with the guide pipe 32 at one side far away from the feed port 31, the guide pipe 32 is communicated with the evaporating pot 4, the evaporating pot 4 is arranged in the hearth 112, the top of the evaporating pot 4 is communicated with the inside of the oxidizing chamber 12, a smoke treatment mechanism is arranged at the top of the top cover 13, the smoke treatment mechanism comprises a smoke discharge pipe 8 and a smoke treatment box 850 which are arranged on the top cover 13 from left to right, the smoke discharge pipe 8 is arranged on the furnace body 1, a filter assembly 810 is arranged inside the smoke discharge pipe 8, the fan 840 is installed at the top of flue gas treatment box 850, and the air inlet of fan 840 communicates with the inside of the top of fume exhaust pipe 8 through the pipeline, and the outlet of fan 840 communicates with the inside bottom of flue gas treatment box 850 through the pipeline.

The filter assembly 810 comprises a plurality of filter screens 811, the aperture of each filter screen 811 is gradually reduced from bottom to top, a connecting rod 812 is welded between the two filter screens 811, an annular bearing plate 820 is welded on the inner wall of the smoke exhaust pipe 8, the filter assembly 810 is lapped on the annular bearing plate 820, a cover plate 830 is welded on the top of the rectangular handle 813 on the uppermost layer, a cover plate 830 is screwed on the top of the smoke exhaust pipe 8, and a handle 831 is welded on the top of the cover plate 830.

The effect through a plurality of filter screens 811 has improved the filter effect, makes things convenient for the dismouting of filter component 810 through dismouting apron 830, not only conveniently pulls up filter component 810 through rectangle portable pole 813, and rectangle portable pole 813 top is at the bottom of apron 830 to the spacing of filter component 810 simultaneously, and is integrative multi-purpose.

The top of the flue gas treatment box 850 is provided with a liquid adding opening 851, the inside of the liquid adding opening 851 is plugged with a rubber plug 852, the top of the flue gas treatment box 850 is provided with an exhaust pipe 853, and the top of the exhaust pipe 853 is provided with a flip 854 through a hinge; the treatment liquid is conveniently added through the liquid adding port 851.

A drain pipe 855 is installed on the right side of the top of the fume treatment box 850, a control valve 856 is installed on the drain pipe 855, and an inclined plate 857 is arranged at the bottom of the fume treatment box 850. Opening the control valve 856 facilitates the removal of the process fluid, which is facilitated by the inclined plate 857.

Working principle: as shown in fig. 1-5, in actual use, zinc ingots or zinc slag are placed in a zinc melting pot 3 through a feed inlet 31, zinc liquid formed by heating and melting zinc ingots or zinc slag in the zinc melting pot 3 enters an evaporation pot 4 through a guide pipe 32, the zinc liquid is further heated in the evaporation pot 4 through high-temperature flue gas, volatilized into an oxidation chamber 12 through an opening at the top of the evaporation pot 4, reacts with air entering the oxidation chamber 12 from a fan 5 to generate zinc oxide, the generated zinc oxide is cooled, zinc oxide powder in the oxidation chamber 12 is sucked by a dust collector 6, and is collected, weighed and packaged, during production, flue gas is treated through a flue gas treatment mechanism to prevent the flue gas from being polluted by external pollution, the flue gas is firstly filtered through a filter assembly 810, and then is introduced into the interior of a flue gas treatment box 850 through a fan 840, the flue gas is further treated through the treatment liquid in the interior of the flue gas treatment box 850, and the flue gas treatment effect is greatly improved.

None of the inventions are related to the same or are capable of being practiced in the prior art. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A metallurgical furnace having a smoke abatement function, comprising: furnace body (1), furnace body (1) inside is equipped with combustion chamber (11), furnace (112), oxidation chamber (12) and flue (2), combustion chamber (11) are in the bottom of furnace body (1), combustor (111) are installed to combustion chamber (11) bottom, furnace (112) are in combustion chamber (11) top, oxidation chamber (12) are in the top of furnace body (1), oxidation chamber (12) are in furnace (112) top, install fan (5) and dust catcher (6) on the wall of oxidation chamber (12), combustion chamber (11) with furnace (112) communicate, flue (2) with furnace (112) communicate, furnace body (1) top is equipped with top cap (13), flue gas treatment mechanism is installed at the top of top cap (13), flue gas treatment mechanism includes from left to right install exhaust gas (8) and flue gas treatment box (850) on top cap (13), exhaust gas pipe (8) are installed on furnace body (1) furnace (112) top, exhaust gas pipe (8) are installed through exhaust gas pipe (8) are installed in the top of filter housing (840) and are installed, the outlet of the fan (840) is communicated with the inner bottom of the flue gas treatment box (850) through a pipeline.

2. A metallurgical furnace with smoke abatement as defined in claim 1, wherein: the utility model discloses a furnace, including furnace body (1), furnace body (12), flue (2) are equipped with at least four, flue (2) top is equipped with and melts zinc pot (3), it has feed inlet (31) to melt zinc pot (3) top intercommunication, feed inlet (31) are in furnace body (1) outer wall surface, melt zinc pot (3) are keeping away from one side intercommunication of feed inlet (31) has honeycomb duct (32), honeycomb duct (32) intercommunication has evaporating pot (4), evaporating pot (4) are in furnace (112) are inside, evaporating pot (4) top with oxidation chamber (12) are inside to be linked together.

3. A metallurgical furnace with smoke abatement as defined in claim 2, wherein: and a side door (311) is arranged on the feeding hole (31).

4. A metallurgical furnace with smoke abatement according to claim 3, wherein: rectangular holes (312) are formed in two sides of the feeding hole (31), and the side doors (311) are arranged in the rectangular holes (312).

5. A metallurgical furnace with smoke abatement according to claim 3, wherein: the side door (311) is provided with a handle (313) on the surface.

6. A metallurgical furnace with smoke abatement as defined in claim 1, wherein: the air inlet of the fan (5) is provided with a protective net (7).

7. A metallurgical furnace with smoke abatement as defined in claim 1, wherein: the output end of the dust collector (6) is provided with a material guide pipe (61).

8. A metallurgical furnace with smoke abatement as defined in claim 1, wherein: the filter component (810) comprises a plurality of filter screens (811), the aperture of each filter screen (811) is gradually reduced from bottom to top, a connecting rod (812) is welded between the filter screens (811) in two layers, an annular bearing plate (820) is welded on the inner wall of the smoke exhaust pipe (8), the filter component (810) is lapped on the annular bearing plate (820), a cover plate (830) is welded on the top of the uppermost rectangular hand lever (813), a cover plate (830) is connected with the top of the smoke exhaust pipe (8) in a threaded mode, and a hand lever (831) is welded on the top of the cover plate (830).

9. A metallurgical furnace with smoke abatement as defined in claim 1, wherein: the top of flue gas treatment case (850) has seted up filling opening (851), the inside stopper of filling opening (851) has rubber stopper (852), blast pipe (853) are installed at the top of flue gas treatment case (850), flip (854) are installed through the hinge at the top of blast pipe (853).

10. A metallurgical furnace with smoke abatement as defined in claim 1, wherein: a liquid discharge pipe (855) is arranged on the right side of the top of the flue gas treatment box (850), a control valve (856) is arranged on the liquid discharge pipe (855), and an inclined plate (857) is arranged at the bottom of the flue gas treatment box (850).