CN108358474B - Continuous air supply coal-saving mixing lime kiln - Google Patents
Continuous air supply coal-saving mixing lime kiln Download PDFInfo
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- CN108358474B CN108358474B CN201810500543.8A CN201810500543A CN108358474B CN 108358474 B CN108358474 B CN 108358474B CN 201810500543 A CN201810500543 A CN 201810500543A CN 108358474 B CN108358474 B CN 108358474B
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- air
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- grate
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
- C04B2/12—Preheating, burning calcining or cooling in shaft or vertical furnaces
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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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
Abstract
The invention relates to the field of lime production, in particular to a mixing lime kiln capable of continuously supplying air and saving coal, which comprises a kiln body, wherein a grate is arranged in the kiln body, a distributing device is further arranged at the lower side of the grate, the space in the kiln body is divided into a calcining chamber and a collecting chamber by the distributing device, the calcining chamber is detachably connected with an air supplying device, a finished product outlet which can be opened and/or closed is arranged on the distributing device, when the finished product outlet is opened, the calcining chamber and the collecting chamber are communicated, an ash discharging hole which can be opened and/or closed is arranged on the collecting chamber, when the finished product outlet is required to be discharged, the calcining chamber and the collecting chamber are blocked, lime can be easily output by opening the ash discharging hole, and air introduction is not required to be stopped when lime is output, so that the air supplying device can continuously introduce air, the calcining process can be continuously carried out, the full combustion of solid fuel is ensured, the consumption of the fuel is reduced, and the preparation cost of the lime is further reduced.
Description
Technical Field
The invention relates to the field of lime production, in particular to a mixing type lime kiln capable of continuously supplying air and saving coal.
Background
Lime is used as an important auxiliary material for industrial production, is widely applied to various industries such as metallurgy, chemical industry, environmental protection, building materials and the like, and a mixing type lime kiln for preparing lime commonly used at present generally adopts solid fuels such as coal, coke and the like to calcine limestone to prepare lime, and in order to ensure the full combustion of the solid fuels, air is required to be introduced into the lime kiln in the lime calcination process, so that the smooth operation of the combustion process is maintained.
However, the mixing type lime kiln commonly used at present only has an inner cavity, the preheating, calcining and cooling of raw materials are all carried out in the same inner cavity, air introduced into the lime kiln flows in the inner cavity, for the lime shaft kiln, the ash discharging opening is generally arranged at the bottom of the inner cavity in a normally closed mode, self gravity of a manufactured lime finished product is utilized to discharge from the opened ash discharging opening during ash discharging, in order to avoid that the introduced air is discharged from the ash discharging opening along with the lime finished product, the output of the lime finished product is influenced, a common air supply device and the ash discharging opening form an alternate sealing structure, when the air supply device works, the ash discharging opening is closed, and when the ash discharging opening is opened, the air supply device stops working, so that when the air supply device stops working, the solid fuel is easy to burn, the waste of the solid fuel is caused, the preparation cost of the lime is increased, meanwhile, when the air supply device stops working, the lime preparation process of the lime kiln is also correspondingly interrupted, the lime preparation process cannot be continuously carried out, the lime preparation time is increased, and the lime preparation cost is further increased.
In view of the above, a technical scheme is needed at present, which solves the technical problems that the lime kiln is used for preparing lime by calcining the lime kiln, solid fuel is wasted and the preparation cost of lime is increased because air cannot be continuously supplied in the lime preparation process of the lime kiln.
Disclosure of Invention
The invention aims at: aiming at the technical problems that the lime kiln is used for preparing lime by calcining the lime kiln, solid fuel is wasted and the preparation cost of the lime is increased due to the fact that air cannot be continuously supplied in the lime preparation process of the conventional mixed lime kiln, the continuous air supply and coal saving mixed lime kiln is provided.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a continuous air supply economizes on coal's compounding formula limekiln, includes the kiln body, be provided with the grate in the kiln body, the grate downside still is provided with feed divider, feed divider will the inside space separation of kiln body is calcining room and room that gathers materials, calcining room detachable is connected with air supply arrangement, be provided with on the feed divider and open and/or close the finished product export, works as when the finished product export is opened, calcining room and collection room intercommunication, be provided with on the room that gathers materials and open and/or close the ash discharge mouth.
According to the uninterrupted air supply and coal saving mixed lime kiln, the material distributing device is arranged on the lower side of the grate to separate the inner space of the kiln body, so that when a finished product outlet on the material distributing device is opened, the calcining chamber and the material collecting chamber are communicated, lime prepared by calcining enters the material collecting chamber from the calcining chamber through the finished product outlet to be collected, when discharging is needed, the finished product outlet is closed, the calcining chamber and the material collecting chamber are separated, the lime discharge opening can be easily opened to output lime, and the air supplying device is only communicated with the calcining chamber when outputting lime, so that air does not need to be stopped from being introduced when outputting lime, the air supplying device can continuously introduce air, the full combustion of solid fuel is ensured, the fuel consumption is reduced, the lime preparation cost is further reduced, and resources are saved.
Preferably, a valve control assembly is detachably arranged on the finished product outlet, and the valve control assembly is used for controlling the opening and/or closing of the finished product outlet. The valve control assembly is arranged on the finished product outlet, so that the opening and/or closing of the finished product outlet can be controlled easily through the valve control assembly, the communication and/or the separation of the calcination chamber and the collecting chamber can be controlled, and the lime finished product discharging is facilitated.
Preferably, the valve control assembly comprises a sliding baffle adapted to the product outlet, the sliding baffle being electrically connected to the controller. Through setting up the slide damper and the finished product export adaptation of platelike structure for only need remove slide damper can realize opening and/or closing of finished product export, and then realize calcining room and collection material room's intercommunication and/or cut off, the structure is simpler.
Preferably, the finished product outlet is connected with a material conveying pipeline, and the material conveying pipeline is positioned in the aggregate chamber. The lime output from the finished product outlet is conveyed along the conveying pipeline, so that the output direction of the lime can be controlled easily, the material output end of the conveying pipeline faces the ash discharge opening according to actual conditions, the lime is concentrated to the ash discharge opening after passing through the conveying pipeline, lime dust is reduced, lime output is facilitated, meanwhile, when the finished product outlet is closed, lime finished products enter the conveying pipeline for temporary storage, air input by the air supply device is prevented from impacting the lime finished products to excite the dust, the lime finished products are returned to the grate again, and normal calcination of the materials on the grate is affected.
Preferably, the valve control assembly is arranged at the material output end of the material conveying pipeline. The valve control assembly is arranged at one material output end of the material conveying pipeline, so that the valve control assembly is far away from the calcination chamber, the influence of high temperature in the calcination chamber on the valve control assembly is reduced, the service life of the valve control assembly is prolonged, meanwhile, lime finished products entering the material conveying pipeline from the calcination chamber are blocked by the valve control assembly, and the lime finished products are temporarily stored in the material conveying pipeline and are cooled in advance, so that the temperature of lime finished products entering the material collecting chamber is lower, the lime finished products are cooled to a proper temperature conveniently, and the lime finished products are output and transported conveniently.
Preferably, the grate is provided with at least one discharge port, and the discharge port is communicated with the finished product outlet. The discharging hole is arranged on the fire grate and communicated with the finished product outlet, so that lime obtained by calcining on the fire grate easily enters the finished product outlet through the discharging hole, and the output of the lime is further facilitated.
Preferably, a plurality of ventilation holes are formed in the fire grate, the fire grate is separated from the distributing device, a gap is formed between the fire grate and the distributing device, and the air supply device is communicated with the gap. Through set up the ventilation hole on the fire grate, with air supply arrangement from the fire grate downside import for form from down the air current that flows up, make the air current of importing and the solid fuel on the fire grate fully contact, make the solid fuel burn more abundant, reduce the consumption of solid fuel, resources are saved, simultaneously, because the air current is dispersed by the ventilation hole, make the air current that gets into in the kiln body more even, make the burning go on more steadily, and then make the burning more abundant.
Preferably, the air outlet of the air supply device supplies air along the direction of the circumscribed line of the gap between the grate and the distributing device, the air holes are arranged on the grate in a vortex line shape, the air holes gradually decrease in size from the outer side to the center of the vortex line, and vortex-shaped air flow is formed above the grate. Through the arrangement form of the ventilation holes on the air supply device and the grate, vortex-shaped air flow is formed in the upper side space of the grate, on one hand, the air is output from the top of the lime kiln, harmful gas generated by burning fuel in the inner space of the kiln body is taken away, the flow of air in the calcining chamber is promoted, meanwhile, the vortex-shaped air flow is also favorable for loosening the fuel, more finer air is introduced into the fuel accumulated on the grate, the fuel is further enabled to be full, and the energy consumption is reduced.
Preferably, at least one air supply device communicates with the calcination chamber on the upper side of the grate. The air supply device is communicated with the calcining chamber at the upper side of the fire grate, the air quantity entering the kiln body is increased, so that when a lot of materials are piled on the fire grate, the raw materials piled on the fire grate are contacted with air from the upper surface and the lower surface, so that the fuel is fully contacted with the air, the full combustion of the fuel is ensured, and according to practical conditions, the same air supply device is connected with a plurality of air outlet pipelines, so that the air of the air supply device is not only input into the calcining chamber from the upper side of the fire grate, but also passes through the fire grate from the lower side of the fire grate and then enters the calcining space at the upper side of the fire grate, and the calcining device is suitable for fully contacting the fuel and the air under the condition of piling thicker fuel, and ensures the full combustion of the fuel.
Preferably, the grate is further provided with a plurality of distributing pieces for paving raw materials, each distributing piece is hollow cone-shaped, and the distributing pieces are provided with a plurality of ventilation holes. The material distributing piece on the fire grate is provided with the vent holes, so that the introduced air enters the calcination chamber after being dispersed by the vent holes, the air flow contacted with the solid fuel is uniform, and the full combustion of the solid fuel is further ensured.
Preferably, the distributing piece comprises a first distributing piece arranged in the center of the fire grate and a plurality of second distributing pieces circumferentially distributed on the periphery of the first distributing piece, and the discharging port is arranged between two adjacent second distributing pieces. The first material distributing piece and the second material distributing piece with various shapes are arranged, the whole surface area of the fire grate is further increased, the uniform laying of raw materials is facilitated, meanwhile, the discharge hole is arranged between two adjacent second material distributing pieces, so that lime obtained by calcination on the material distributing pieces can smoothly enter the discharge hole to enter a finished product outlet for output along the inclined surface of the conical material distributing piece, and the output of materials is further facilitated.
Preferably, the air supply device is a blower and/or an exhaust fan. The air supply device is simple in structure and convenient to use, one or both of the air supply device and the air supply device can be selected according to actual conditions, smooth flow of air in the calcination chamber is guaranteed, full combustion of solid fuel is guaranteed, and the flow speed and the total air amount of air entering the inner space of the kiln body can be controlled by controlling the work of the air blower and/or the air exhauster according to the actual conditions such as the total amount and quality of the solid fuel, so that full combustion of the fuel is guaranteed to the greatest extent, resource waste is avoided, and toxic gas is generated.
Preferably, an air outlet is further formed in the top of the kiln body, and is connected with an air outlet pipeline, and the air outlet pipeline is connected with an air treatment device. The air treatment device is connected with the internal space of the kiln body through the air outlet pipeline arranged at the top of the kiln body, so that the air output from the kiln body is discharged into the air after passing through the air treatment device to remove dust and toxic and harmful substances, thereby avoiding causing environmental pollution and forming a harmless production process of lime.
Preferably, the air treatment device is a washing tower, and the washing tower is used for removing harmful substances in the air discharged from the kiln body. The washing tower is adopted as an air treatment device, the atomization spraying system is arranged in the washing tower, the function of reducing temperature and dust is better, dust in the output gas of the kiln body is effectively settled, the output air is physically treated, meanwhile, chemical agents can be added into the liquid of the atomization spraying system according to actual conditions, sulfide in the output air of the kiln body is neutralized, the output air is chemically treated, and the harmful substances of the air discharged into the atmosphere during lime production are furthest guaranteed to be removed, so that environmental pollution is avoided.
In summary, due to the adoption of the technical scheme, the uninterrupted air supply and coal saving mixed lime kiln has the beneficial effects that:
1. the lower side of the grate is provided with the material distributing device to separate the space in the kiln body, when discharging is needed, the finished product outlet on the material distributing device is closed, the calcining chamber and the material collecting chamber are separated, the lime discharging opening can be easily opened to output lime, and the air supplying device is only communicated with the calcining chamber when lime is output, so that air is not required to be introduced when lime is output, the air supplying device can continuously introduce air, the full combustion of solid fuel is ensured, the consumption of fuel is reduced, the preparation cost of lime is further reduced, and resources are saved;
2. the air supply device is continuously carried out, so that the calcination process can be continuously carried out, the whole time for preparing lime is correspondingly reduced, and the preparation cost of lime is further reduced;
the invention has the beneficial effects that other embodiments of the mixed lime kiln with uninterrupted air supply and coal saving are as follows:
1. the valve control assembly is arranged on the finished product outlet, so that the opening and/or closing of the finished product outlet can be controlled easily through the valve control assembly, the communication and/or the separation of the calcination chamber and the collecting chamber can be controlled, and the lime finished product is convenient to discharge;
2. through set up the ventilation hole on the fire grate, with air supply arrangement from the fire grate downside import for form from down the air current that flows up, make the air current of importing and the solid fuel on the fire grate fully contact, make the solid fuel burn more abundant, reduce the consumption of solid fuel, resources are saved, simultaneously, because the air current is dispersed by the ventilation hole, make the air current that gets into in the kiln body more even, make the burning go on more steadily, and then make the burning more abundant.
Drawings
FIG. 1 is a schematic structural view of a mixing type lime kiln with uninterrupted air supply and coal saving of the invention;
FIG. 2 is a schematic diagram of a partial cross-sectional structure of a mixing type lime kiln with uninterrupted air supply and coal saving according to the invention;
fig. 3 is a schematic view of the structure of section A-A in fig. 2.
Reference numerals
The device comprises a 1-kiln body, a 11-calcining chamber, a 12-collecting chamber, a 13-ash discharge hole, a 2-grate, a 21-vent hole, a 22-discharge hole, a 3-distributing device, a 31-finished product outlet, a 32-material conveying pipeline, a 4-air supply device, a 5-valve control assembly, a 51-sliding baffle, a 52-controller, a 6-distributing piece, a 61-first distributing piece, a 62-second distributing piece, a 7-air outlet pipeline and an 8-washing tower.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1-2, the mixing lime kiln comprises a kiln body 1, wherein a grate 2 is arranged in the kiln body 1, a distributing device 3 is further arranged at the lower side of the grate 2, the internal space of the kiln body 1 is divided into a calcining chamber 11 and an aggregate chamber 12 by the distributing device 3, the calcining chamber 11 is detachably connected with an air supply device 4, a finished product outlet 31 which can be opened and/or closed is arranged on the distributing device 3, when the finished product outlet 31 is opened, the calcining chamber 11 is communicated with the aggregate chamber 12, and an ash discharging opening 13 which can be opened and/or closed is arranged on the aggregate chamber 12.
According to the uninterrupted air supply and coal saving mixed lime kiln, the material distributing device 3 is arranged on the lower side of the fire grate 2 to separate the inner space of the kiln body 1, so that when a finished product outlet 31 on the material distributing device 3 is opened, the calcining chamber 11 and the material collecting chamber 12 are communicated, lime obtained by calcining enters the material collecting chamber 12 from the calcining chamber 11 through the finished product outlet 31, when discharging is needed, the finished product outlet 31 is closed, the calcining chamber 11 and the material collecting chamber 12 are separated, the ash discharging opening 13 can be easily opened to output lime, and as the air supplying device 4 is only communicated with the calcining chamber 11 when lime is output, intermittent output of lime finished products is realized, air introduction is not needed to be stopped when lime is output, so that the air supplying device 4 can continuously introduce air, full combustion of solid fuel is ensured, the consumption of fuel is reduced, the preparation cost of lime is further reduced, resources are saved, and meanwhile, the calcination process can be continuously carried out, the whole time for preparing lime is correspondingly reduced, and the preparation cost of lime is further reduced.
Preferably, an air outlet is further formed in the top of the kiln body 1, the air outlet is connected with an air outlet pipeline 7, and the air outlet pipeline 7 is connected with an air treatment device. The air treatment device is connected with the inner space of the kiln body 1 through the air outlet pipeline 7 arranged at the top of the air treatment device, so that the air output from the kiln body 1 is discharged into the air after dust and toxic and harmful substances are removed through the air treatment device, environmental pollution is avoided, a harmless production process of lime is formed, the washing tower 8 is preferably adopted as the air treatment device, an atomization spraying system is arranged in the washing tower 8, a better cooling and dust falling function is achieved, the dust in the output gas of the kiln body 1 is effectively settled, the output air is subjected to physical treatment, meanwhile, chemical agents can be filled in the liquid of the atomization spraying system according to actual conditions, sulfide generated by fuel combustion in the output air of the kiln body 1 is neutralized, the chemical treatment is performed on the output air, the harmful substances of the air discharged into the atmosphere during lime production are furthest guaranteed to be removed, the environmental pollution is avoided, and the harmless production of the lime is formed.
Preferably, the air supply device 4 is a blower and/or an exhaust fan. The air blower and/or the exhaust fan are/is adopted as the air supply device 4, the structure is simpler, the use is more convenient, one or both of the air blower and the exhaust fan can be selected according to the actual conditions, smooth flow of air in the calcining chamber 11 is guaranteed, full combustion of solid fuel is guaranteed, the air blower and/or the exhaust fan can be controlled according to the actual conditions such as total amount and quality of the solid fuel, the air flow speed and the total amount of air entering the inner space of the kiln body 1 are controlled by controlling the work of the air blower and/or the exhaust fan, full combustion of fuel is guaranteed to the greatest extent, resource waste is avoided, toxic gas is generated, the air blower is preferably adopted to introduce air to the inner space of the kiln body 1 at one side of the kiln body 1, the exhaust fan is simultaneously arranged to work on the air outlet pipeline 7, the air blower and the exhaust fan are simultaneously operated, the air is guided to enter and are led out of the inner space of the kiln body 1, and the oxygen content in the calcining chamber 11 is guaranteed to meet the full combustion of the fuel.
Example 2
As shown in fig. 1-2, the structure of the continuous air supply and coal saving mixed lime kiln of this embodiment is the same as that of embodiment 1, except that: the valve control assembly 5 is detachably arranged on the finished product outlet 31, the valve control assembly 5 is used for controlling the opening and/or closing of the finished product outlet 31, the valve control assembly 5 comprises a sliding baffle plate 51 matched with the finished product outlet 31, and the sliding baffle plate 51 is electrically connected with a controller 52.
According to the uninterrupted air supply and coal saving mixed lime kiln, the valve control assembly 5 is arranged on the finished product outlet 31, the opening and/or closing of the finished product outlet 31 can be controlled easily through the valve control assembly 5, the communication and/or the separation of the calcination chamber 11 and the collection chamber 12 are controlled, and then the lime finished product is discharged conveniently, meanwhile, the sliding baffle plate 51 with a plate-shaped structure is arranged to be matched with the finished product outlet 31, so that the opening and/or the closing of the finished product outlet 31 can be realized only by moving the sliding baffle plate 51, the communication and/or the separation of the calcination chamber 11 and the collection chamber 12 are realized, the structure is simple, the sliding baffle plate 51 with the plate-shaped structure is preferably adopted, the electric controller is connected with the sliding baffle plate 51, and the sliding baffle plate 51 is moved in a lifting mode, so that the opening and/or the closing of the finished product outlet 31 is easy.
Preferably, the product outlet 31 is connected with a material conveying pipeline 32, the material conveying pipeline 32 is positioned in the material collecting chamber 11, and the valve control assembly 5 is arranged at a material output end of the material conveying pipeline 32. Set up the conveying pipeline 32 on the finished product export 31 for the lime of follow finished product export 31 output is carried along conveying pipeline 32, make the output direction of control lime that can be easier, can be according to actual conditions, with the material output one end orientation of conveying pipeline 32 to the ash discharge opening 13, make lime concentrate to the ash discharge opening 13 position behind conveying pipeline 31, reduce the production of lime dust, make things convenient for the output of lime, simultaneously, set up the material output one end at conveying pipeline 32 with valve accuse subassembly 5, make valve accuse subassembly 5 keep away from calcination room 11, reduce the influence of the high temperature in the calcination room 11 to valve accuse subassembly 5, the life of valve accuse subassembly 5 is prolonged.
Preferably, the collecting chamber 12 is in a cone shape with a big top and a small bottom, the material conveying pipeline 32 is obliquely arranged along the inner wall of the collecting chamber 12, and the material output end of the material conveying pipeline 32 faces the ash discharging opening 13. Setting up the room 12 that gathers materials into the centrum form, be favorable to gathering the lime of follow calcination room 11 output in the room 12 bottom that gathers materials, simultaneously, with conveying pipeline 32 slope setting, make things convenient for lime to carry along conveying pipeline 32, further, through the setting of conveying pipeline 32 orientation ash discharge opening 13, reduce lime drop distance, make the lime of follow calcination room 11 output be difficult to the dust that arouses, conveniently follow ash discharge opening 13 and unload ash treatment.
Example 3
As shown in fig. 1-3, the structure of the continuous air supply and coal saving mixed lime kiln of this embodiment is the same as that of embodiment 2, and the difference is that: the fire grate 2 is provided with a plurality of ventilation holes 21, the fire grate 2 is separated from the distributing device 3, and the air supply device 4 is communicated with a gap between the fire grate 2 and the distributing device 3.
The uninterrupted air supply coal-saving mixed lime kiln of the embodiment is characterized in that the ventilation holes 21 are formed in the fire grate 2, the air supply device 4 is led in from the lower side of the fire grate 2, so that air flow flowing from bottom to top is formed, the led air flow is fully contacted with solid fuel on the fire grate 2, the solid fuel is combusted more fully, the consumption of the solid fuel is reduced, resources are saved, meanwhile, the air flow is dispersed by the ventilation holes 21, the air flow entering the kiln body 1 is more uniform, the combustion is performed more stably, the combustion is more fully, and the air supply device 4 is communicated with the space above the fire grate while being communicated with a gap, so that the air quantity entering the kiln body 1 is sufficient, and the full combustion of the fuel is ensured to the greatest extent.
Preferably, a plurality of distributing pieces 6 for paving raw materials are arranged on the fire grate 2, the ventilation holes 21 are uniformly distributed on the distributing pieces 6, and the distributing pieces 6 are hollow cone-shaped. The ventilation holes 21 are uniformly distributed on the distributing piece 6 on the grate 2, so that the introduced air is dispersed by the ventilation holes 21 and then enters the calcination chamber 11, the air flow contacted with the solid fuel is uniform, the full combustion of the solid fuel is further ensured, meanwhile, the distributing piece 6 is hollow cone-shaped, the whole surface area of the grate 2 is increased, the raw materials paved on the distributing piece 6 are uniformly distributed and are not easy to stack, the raw materials can be fully contacted with the introduced air, the full combustion of the solid fuel is further ensured, the lime yield obtained by calcination is higher, the hollow pyramid-shaped distributing piece 6 is preferably adopted, the raw materials are paved on the pyramid-shaped distributing piece 6 through a plurality of planes on the pyramid, the raw materials are easily paved on the surface of the inclined distributing piece 6, the introduced air is vertically blown into the raw materials on the distributing piece 6, the stable paving of the raw materials due to the thrust of the introduced air is avoided, the full contact of the raw materials and the full combustion of the raw materials and the air is further ensured.
Preferably, the distributing member 6 comprises a first distributing member 61 arranged at the center of the grate 2 and a plurality of second distributing members 62 circumferentially distributed around the first distributing member 61, a discharge port 22 is arranged between two adjacent second distributing members 62, and the discharge port 22 is communicated with the finished product outlet 31. The first material distributing piece 61 and the second material distributing piece 62 with various shapes are adopted, the whole surface area of the fire grate 2 is further increased, the uniform laying of raw materials is facilitated, meanwhile, the discharge hole 22 is arranged between two adjacent second material distributing pieces 62, so that lime calcined on the material distributing piece 6 can smoothly enter the discharge hole 22 along the inclined surface of the conical material distributing piece 6 to enter the finished product outlet 31 for output, and the output of the materials is further facilitated.
The foregoing examples are only for illustrating the present invention and not for limiting the technical solutions described in the present invention, and although the present invention has been described in detail with reference to the foregoing examples, the present invention is not limited to the above-described specific embodiments, and therefore any modifications or equivalent substitutions are made thereto without departing from the spirit and scope of the present invention, and all such modifications and improvements are intended to be included in the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a mix formula lime kiln of uninterrupted air supply festival coal, includes kiln body (1), be provided with fire grate (2), its characterized in that in the kiln body (1): the lower side of the grate (2) is also provided with a distributing device (3), the distributing device (3) divides the inner space of the kiln body (1) into a calcining chamber (11) and a collecting chamber (12), the calcining chamber (11) is detachably connected with an air supply device (4), the distributing device (3) is provided with an openable and/or closable finished product outlet (31), when the finished product outlet (31) is opened, the calcining chamber (11) and the collecting chamber (12) are communicated, the collecting chamber (12) is provided with an openable and/or closable ash discharge opening (13), the grate (2) is provided with at least one discharge opening (22), the discharge opening (22) is communicated with the finished product outlet (31), the grate (2) is provided with a plurality of ventilation holes (21), the grate (2) is separated from the distributing device (3), a gap is formed between the grate (2) and the distributing device (3), the air supply device (4) is communicated with the gap, the gap is communicated with the outlet (31), the finished product outlet (31) is connected with the finished product outlet (32) through a control valve (32), the finished product outlet (31) is connected with the finished product control valve (32), the valve control assembly (5) is arranged at one material output end of the material conveying pipeline (32).
2. A mixed lime kiln according to claim 1, wherein: the fire grate (2) is also provided with a plurality of distributing pieces (6) for paving raw materials, each distributing piece (6) is hollow cone-shaped, and each distributing piece (6) is provided with a plurality of ventilation holes (21).
3. A mixed lime kiln according to claim 2, wherein: the material distributing piece (6) comprises a first material distributing piece (61) arranged at the center of the fire grate and a plurality of second material distributing pieces (62) circumferentially distributed on the periphery of the first material distributing piece (61), and the material outlet (22) is arranged between two adjacent second material distributing pieces (62).
4. A mixed lime kiln according to claim 1, wherein: the air supply device (4) is a blower and/or an exhaust fan.
5. A mixed lime kiln according to any one of claims 1-4, wherein: the top of the kiln body (1) is also provided with an air outlet, the air outlet is connected with an air outlet pipeline (7), the air outlet pipeline (7) is connected with an air treatment device, the air treatment device is used for removing harmful substances in the air discharged by the kiln body (1), and the air treatment device is a washing tower.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810500543.8A CN108358474B (en) | 2018-05-23 | 2018-05-23 | Continuous air supply coal-saving mixing lime kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810500543.8A CN108358474B (en) | 2018-05-23 | 2018-05-23 | Continuous air supply coal-saving mixing lime kiln |
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| CN108358474A CN108358474A (en) | 2018-08-03 |
| CN108358474B true CN108358474B (en) | 2023-07-18 |
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| CN112441757A (en) * | 2020-12-17 | 2021-03-05 | 江苏实亚新材料科技有限公司 | Anthracite lime shaft kiln and transformation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3032198B1 (en) * | 1999-03-09 | 2000-04-10 | 川崎重工業株式会社 | Method and apparatus for firing lime mud |
| WO2000032532A1 (en) * | 1998-12-03 | 2000-06-08 | Lucio Alvaro | Process for thermal treatment of inorganic and organic materials in a series of small shafts, and the apparatus to perform ditto process |
| CN101597145A (en) * | 2008-12-04 | 2009-12-09 | 贾会平 | A kind of method and apparatus of lime calcining |
| CN201620107U (en) * | 2009-07-21 | 2010-11-03 | 贾会平 | Multi-hearth lime kiln |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5380505A (en) * | 1993-10-07 | 1995-01-10 | Dravo Lime Company | Production of low sulfur content lime from limestone |
| CN201010615Y (en) * | 2007-03-19 | 2008-01-23 | 卢继升 | Girder type ventilating and refrigerating mechanism for lime shaft kiln |
| CN102230726B (en) * | 2011-06-10 | 2013-04-10 | 河南省德耀节能科技有限公司 | Sleeve type continuous calcining vertical kiln |
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2018
- 2018-05-23 CN CN201810500543.8A patent/CN108358474B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000032532A1 (en) * | 1998-12-03 | 2000-06-08 | Lucio Alvaro | Process for thermal treatment of inorganic and organic materials in a series of small shafts, and the apparatus to perform ditto process |
| JP3032198B1 (en) * | 1999-03-09 | 2000-04-10 | 川崎重工業株式会社 | Method and apparatus for firing lime mud |
| CN101597145A (en) * | 2008-12-04 | 2009-12-09 | 贾会平 | A kind of method and apparatus of lime calcining |
| CN201620107U (en) * | 2009-07-21 | 2010-11-03 | 贾会平 | Multi-hearth lime kiln |
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