CN116102269A - Environment-friendly lime production process and pulse bag type dust collector - Google Patents
Environment-friendly lime production process and pulse bag type dust collector Download PDFInfo
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- CN116102269A CN116102269A CN202211723346.5A CN202211723346A CN116102269A CN 116102269 A CN116102269 A CN 116102269A CN 202211723346 A CN202211723346 A CN 202211723346A CN 116102269 A CN116102269 A CN 116102269A
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- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 149
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 149
- 239000004571 lime Substances 0.000 title claims abstract description 149
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 239000000428 dust Substances 0.000 title claims description 28
- 238000000034 method Methods 0.000 claims abstract description 72
- 230000008569 process Effects 0.000 claims abstract description 67
- 239000000843 powder Substances 0.000 claims abstract description 62
- 235000019738 Limestone Nutrition 0.000 claims abstract description 55
- 239000006028 limestone Substances 0.000 claims abstract description 55
- 238000001035 drying Methods 0.000 claims abstract description 42
- 238000001354 calcination Methods 0.000 claims abstract description 35
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 238000001125 extrusion Methods 0.000 claims description 18
- 239000008187 granular material Substances 0.000 claims description 13
- 239000003595 mist Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000004806 packaging method and process Methods 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 7
- 230000007613 environmental effect Effects 0.000 claims description 6
- 238000005453 pelletization Methods 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 2
- 229940095686 granule product Drugs 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 2
- 238000009704 powder extrusion Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 59
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 239000002803 fossil fuel Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000012858 packaging process Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 10
- 239000002994 raw material Substances 0.000 description 8
- 230000006872 improvement Effects 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000005469 granulation Methods 0.000 description 4
- 230000003179 granulation Effects 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 230000036632 reaction speed Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 241000270295 Serpentes Species 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- 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
- C04B2/02—Lime
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Food Science & Technology (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses an environment-friendly lime production process which comprises a crushing process, a humidifying process, a granulating process, a drying and preheating process, a calcining process, a cooling process and a packaging process. The beneficial effects are that: according to the invention, the lime powder particles formed after the limestone is crushed and granulated have uniform particle size, the reaction is more uniform and stable in the calcining process, the problem that the conventional production method is easy to cause uneven particle size of the limestone in the calcining process after the limestone is directly crushed is avoided, the over-burning or under-burning problem is easy to occur in the calcining process, the stability and the working efficiency of the lime are improved, meanwhile, the density of the lime powder particles after the granulating is less than that of the limestone, the particle porosity is high, the lime powder particles are easier to burn through, the consumption of fossil fuel is saved, the energy consumption is reduced, the energy is saved, the environment is protected, meanwhile, the lime particles generated after the calcining are also very uniform, the using convenience of products is improved, and the competitiveness of the products is improved.
Description
Technical Field
The invention relates to the technical field of lime production, in particular to an environment-friendly lime production process and a pulse bag type dust collector.
Background
Lime is an air hardening inorganic cementing material taking calcium oxide as a main component, the lime is formed by calcining products with high calcium carbonate content such as limestone, dolomite, chalk, shells and the like at 900-1100 ℃, the lime is a cementing material which is used by human beings at the earliest time, and the lime has a wide application range in civil engineering and can be used in medicine in China.
In actual production, in order to reduce the production of underfire lime and overfire lime, crushed limestone is generally screened, limestone with a certain particle size range is selected for calcination, the limestone with an overlarge particle size can be crushed again, the limestone with an overlarge particle size cannot directly participate in the calcination process, so that the waste of part of limestone is caused, meanwhile, even if the limestone with a certain particle size range has the particle size difference, the problems that the overfire lime is formed by partial overfiring and the underfire lime is formed by partial underfiring are easily caused, the quality of the final product is influenced, the improvement can be further made, meanwhile, the crushed limestone is still in an irregular shape after calcination, the weighing and packaging are inconvenient, quantitative taking is inconvenient in later period, the natural limestone has large density and low porosity, the calcination is difficult, the high-temperature decomposition of calcium carbonate into calcium oxide is influenced, the calcination efficiency of lime is influenced, the production efficiency is influenced, and the improvement can be further made.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides the lime environment-friendly production process and the pulse bag type dust collector, which have the advantages of energy conservation and environment friendliness, improvement of product quality and competitiveness, improvement of lime calcination efficiency and saving of raw material loss, and further solve the problems in the background art.
(II) technical scheme
In order to realize the advantages of energy conservation, environmental protection, product quality and competitiveness improvement, lime calcination efficiency improvement and raw material loss saving, the invention adopts the following specific technical scheme:
the utility model provides a lime environmental protection production technology, includes crushing process, humidification process, pelletization process, dry preheating process, calcination process, cooling process and packing process, the crushing process adopts jaw breaker to break the lime stone into small-size lime stone, the crushing process adopts the Raymond mill to smash small-size lime stone into lime powder, the humidification process adopts the humidification tunnel to be lime powder humidification, the pelletization process adopts the extrusion granulation of lime powder to the humidification after the roller extrusion granulator, forms lime powder granule, dry preheating process is dry preheating the lime powder granule through the drying tunnel, the calcination process utilizes the lime kiln to calcine the lime powder granule after the dry preheating to form lime granule, the cooling process is the forced air cooling, the packing process adopts packagine machine to pack and forms final lime granule product.
Further, the humidification tunnel includes internally mounted's band conveyer, and humidification tunnel one end top surface link up and be connected with the second feed inlet to humidification tunnel other end bottom surface link up and seted up the second discharge gate, humidification tunnel top surface mount is equipped with defeated fog pipe, and defeated fog pipe surface link up and be connected with out the fog mouth, and go out the fog mouth and run through the humidification tunnel and extend to band conveyer top surface top, defeated fog pipe one end link up and be connected with industry humidifier.
Further, the drying tunnel includes internally mounted's guipure formula conveyer, and drying tunnel one end top surface through connection has first feed inlet to first discharge gate has been seted up to drying tunnel other end bottom surface, drying tunnel top surface mount is equipped with the shunt tubes, and the shunt tubes surface through connection has the gas outlet, and the gas outlet runs through the drying tunnel and extends to guipure formula conveyer top surface top, shunt tubes one end through connection has the hot air pipe.
Further, the jaw crusher discharge end is connected with the Raymond mill unit feed end through the conveyer, and the Raymond mill unit discharge end is connected with the second feed inlet of the humidifying tunnel through the conveyer, and the second discharge outlet of the humidifying tunnel is in through connection with the feed end of the twin-roll extrusion granulator.
Further, the discharge end of the double-roller extrusion granulator is connected with the first feed inlet of the drying tunnel through a conveyor, and the first discharge outlet of the drying tunnel is connected with the feed end of the lime kiln through the conveyor.
Further, a plurality of mist outlets are arranged at equal intervals.
Further, the shunt tubes are provided with a plurality of air outlets on the surfaces of the shunt tubes at equal intervals.
Further, the lime kiln discharge end is provided with air cooling equipment, the air cooling equipment adopts tunnel type air cooling equipment, and the air cooling equipment discharge end is connected with the packaging machine feed end through a conveyor.
Further, a plurality of the pair-roller type extrusion granulator are arranged.
The pulse bag type dust collector comprises a lime kiln, a hot air pipe and a pulse belt type dust collector unit, wherein the smoke inlet end of the pulse bag type dust collector unit is in through connection with the smoke outlet end of the lime kiln through the smoke pipe, and the air outlet end of the pulse bag type dust collector unit is in through connection with the hot air pipe.
(III) beneficial effects
Compared with the prior art, the invention provides an environment-friendly lime production process and a pulse bag type dust collector, which are provided with the following steps of
The beneficial effects are that:
(1) According to the invention, firstly, the crushed limestone is crushed by adopting a Raymond mill unit, then lime powder formed by the crushed limestone is humidified by a humidifying procedure, adhesion is improved, then particles with consistent particle size are prepared by a roller type extrusion granulator in a granulating procedure, the particles are put into a lime kiln to be calcined to form lime after a drying preheating procedure, the lime is cooled and packaged to leave a factory, the particle size of the lime powder formed by crushing and granulating is uniform, the reaction is more uniform and stable in the calcining process, the problems that the limestone particle size is uneven, overburning or underburning easily occurs in the conventional production method for directly crushing and calcining the limestone are avoided, the stability and the working efficiency of lime calcining are improved, meanwhile, the density of the lime powder particles after granulating is less than the density of the limestone, the particle porosity is high, the lime particles are easier to burn out, the consumption of fossil fuel is reduced, the energy is more environment-friendly, the lime particles generated after the calcining are also very uniform, the lime particles are packaged and sold in a later period, the lime powder is convenient for customers to use, and the convenience of taking and the product is improved, and the product competitiveness is improved.
(2) According to the invention, the limestone is directly crushed after crushing, and the crushed limestone is directly fed into the Raymond mill unit by the jaw crusher, so that the limestone is fully utilized for grinding to form lime powder, the problem that the limestone with too small granularity is wasted due to the fact that the crushed limestone is required to be screened and calcined in the conventional lime production is avoided, the limestone can be fully utilized for lime production, the raw material loss is saved, and the raw material waste is avoided.
(3) The invention adopts the hot air pipe, the hot air pipe is communicated with the air outlet and the shunt pipes of the pulse bag type dust collector unit, high-temperature flue gas generated in the lime kiln enters the hot air pipe after being filtered and dedusted by the pulse bag type dust collector unit, and the lime powder particles are dried and preheated through the shunt pipes and the air outlet, so that the influence of excessive moisture in the lime powder particles on the calcination efficiency in the lime kiln is avoided, and meanwhile, the residual heat of the pulse bag type dust collector unit is synchronously utilized to preheat the lime powder particles in the drying process, so that the lime powder particles can be quickly heated when entering the lime kiln, the calcination reaction speed and efficiency are improved, the production efficiency is improved, and meanwhile, the residual heat in the flue gas of the lime kiln is utilized, and the extra consumed heat is not needed in the drying and preheating processes, thereby being more energy-saving and environment-friendly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in 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 other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a process flow diagram of an environmentally friendly lime production process according to an embodiment of the invention;
FIG. 2 is an equipment flow diagram of a lime environmental production process according to an embodiment of the invention;
fig. 3 is a schematic view of an internal structure of a drying tunnel according to an embodiment of the present invention;
fig. 4 is a front view of a drying tunnel according to an embodiment of the present invention;
fig. 5 is a schematic view showing an external structure of a drying tunnel according to an embodiment of the present invention;
fig. 6 is a schematic view of an internal structure of a humidifying tunnel according to an embodiment of the present invention;
fig. 7 is a front view of a humidification tunnel according to an embodiment of the present invention;
fig. 8 is a schematic view of an external structure of a humidifying tunnel according to an embodiment of the present invention.
In the figure:
1. a flue pipe; 2. a hot air pipe; 3. jaw crusher; 4. raymond mill units; 5. humidifying the tunnel; 6. a twin-roll extrusion granulator; 7. a drying tunnel; 8. a pulse bag type dust collector unit; 9. lime kiln; 10. packaging machine; 11. a first feed port; 12. a shunt; 13. an air outlet; 14. a mesh belt conveyor; 15. a first discharge port; 16. a second feed inlet; 17. a fog conveying pipe; 18. a mist outlet; 19. a belt conveyor; 20. a second discharge port; 21. industrial humidifiers.
Detailed Description
For the purpose of further illustrating the various embodiments, the present invention provides the accompanying drawings, which are a part of the disclosure of the present invention, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present invention, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.
According to the embodiment of the invention, an environment-friendly lime production process and a pulse bag type dust collector are provided.
The invention is further described with reference to the accompanying drawings and the specific embodiments, as shown in fig. 1-8, the lime environment-friendly production process according to the embodiment of the invention comprises a crushing process, a humidifying process, a granulating process, a drying and preheating process, a calcining process, a cooling process and a packaging process, wherein the crushing process adopts a jaw crusher 3 to crush limestone into small-particle-size limestone, the crushing process adopts a Raymond mill unit 4 to crush the small-particle-size limestone into lime powder, the lime powder is a common crushing unit, the humidifying process adopts a humidifying tunnel 5 to humidify the lime powder, the hygroscopicity of the crushed lime powder is good, the humidifying process can directly adopt a humidifier to humidify the lime powder, the granulating process adopts a pair-roller type extrusion granulator 6 to extrude and granulate the humidified lime powder, and the lime powder is extruded and molded by a pair roller, so that the lime powder particles can be purchased in the market, the drying and preheating process is to dry and preheat lime powder particles through a drying tunnel 7, the calcining process is to calcine the lime powder particles after drying and preheating by a lime kiln 9 to form lime particles, the cooling process is air cooling, the packaging process is to package by a packaging machine 10 to form final lime particle products, the packaging machine 10 can use a snake skin bag packaging machine 10, the cost is low, firstly, the crushed limestone is crushed by a Raymond mill unit 4, the lime powder formed by the crushed limestone is humidified by a humidifying process to improve the adhesion, then the lime powder enters a granulating process, particles with consistent particle size are manufactured by a roller type extrusion granulator 6, the lime powder particles are calcined in the lime kiln 9 after drying and preheating process to form lime, the lime powder particles after crushing and granulating are packaged and delivered after cooling, the lime powder has the advantages that the reaction is more uniform and stable in the calcining process, the problem that the limestone particle size is uneven in a traditional production mode, and the limestone particle size is easy to cause after direct crushing of the limestone is avoided, the stability and the working efficiency of lime calcining are improved, meanwhile, the density of lime powder particles after granulating is smaller than the density of the limestone, the particle porosity is high, the lime powder particles are easier to burn through, the consumption of fossil fuel is reduced, the energy consumption is reduced, the energy is more saved, the environment is protected, meanwhile, the lime particles generated after sintering are also very uniform, the lime particles are conveniently packaged and sold in the later period, the taking of customers is also facilitated, the convenience of product use is improved, the product competitiveness is improved, meanwhile, the limestone is processed in a mode of direct crushing after crushing, the limestone after crushing of the jaw crusher 3 is directly fed into the Raymond mill 4, the limestone is fully utilized to powder, the problem that the lime powder is formed, the lime is fully utilized to produce the lime, and the raw material consumption is avoided because the lime is reduced because the lime is required to be screened and the proper limestone particles are calcined after crushing, and the raw material consumption is avoided.
In one embodiment, humidification tunnel 5 includes internally mounted's band conveyer 19 for carry lime powder in succession, and humidification tunnel 5 one end top surface through-connection has second feed inlet 16, make things convenient for lime powder to get into, and humidification tunnel 5 other end bottom surface through-connection has seted up second discharge gate 20, make things convenient for lime powder to flow, humidification tunnel 5 top surface mount is equipped with defeated fog pipe 17, and defeated fog pipe 17 surface through-connection has a fog outlet 18, and fog outlet 18 runs through humidification tunnel 5 and extends to band conveyer 19 top surface top, defeated fog pipe 17 one end through-connection has industry humidifier 21, industry humidifier 21 produces water smoke, enter into humidification tunnel 5 through defeated fog pipe 17 and fog outlet 18, by the lime powder inhalation, increase the adhesion, be convenient for later stage extrusion granulation.
In one embodiment, the drying tunnel 7 comprises an internally mounted mesh belt conveyor 14, the airflow is convenient to circulate, a first feed inlet 11 is connected with the top surface of one end of the drying tunnel 7 in a penetrating way, lime powder particles are convenient to enter, a first discharge outlet 15 is formed in the bottom surface of the other end of the drying tunnel 7, lime powder particles are convenient to flow out, a shunt tube 12 is arranged on a fixing frame of the top surface of the drying tunnel 7, an air outlet 13 is connected with the surface of the shunt tube 12 in a penetrating way, the air outlet 13 penetrates through the drying tunnel 7 and extends to the upper side of the top surface of the mesh belt conveyor 14, and one end of the shunt tube 12 is connected with the hot air pipe 2 in a penetrating way.
In one embodiment, the discharge end of the jaw crusher 3 is connected with the feed end of the Raymond mill set 4 through a conveyor, so that crushed limestone is conveniently put into the Raymond mill set 4, and the discharge end of the Raymond mill set 4 is connected with the second feed port 16 of the humidifying tunnel 5 through the conveyor, so that lime powder is conveniently put into the conveying, and the second discharge port 20 of the humidifying tunnel 5 is in through connection with the feed end of the twin-roll extrusion granulator 6, so that lime powder after being put into the humidifying is conveniently conveyed, wherein the discharge end of the twin-roll extrusion granulator 6 is connected with the first feed port 11 of the drying tunnel 7 through the conveyor, so that lime powder particles after being granulated are conveniently conveyed, and the first discharge port 15 of the drying tunnel 7 is connected with the feed end of the lime kiln 9 through the conveyor, wherein the discharge end of the lime kiln 9 is provided with an air cooling device, and the air cooling device adopts a tunnel type air cooling device, and the discharge end of the air cooling device is connected with the feed end of the packaging machine 10 through the conveyor, so that procedures and devices common in the field are provided.
In one embodiment, a plurality of mist outlets 18 are arranged at equal intervals, so that the uniformity of mist outlet is improved.
In one embodiment, the plurality of the shunt pipes 12 are arranged, and the plurality of the air outlets 13 on the surface of the shunt pipes 12 are arranged at equal intervals, so that the uniformity of hot air outflow is improved, and the drying efficiency is improved.
In one embodiment, a plurality of the pair-roller type extrusion granulator 6 are arranged, so that granulation can be performed simultaneously, and the working speed is improved.
The utility model provides a pulse bag collector, including limekiln 9 and hot air pipe 2 and pulse belt dust collector unit, pulse bag dust collector unit 8 advances the cigarette end and link up with limekiln 9 exhaust end through flue pipe 1, and pulse bag dust collector unit 8 exhaust end and hot air pipe 2 link up and be connected, thereby inject the steam after filtering dust removal into hot air pipe 2, hot air pipe 2 switch-on pulse bag dust collector unit 8's gas outlet 13 and shunt tubes 12, the high temperature flue gas that produces in limekiln 9 enters into hot air pipe 2 after the filtration dust removal of pulse bag dust collector unit 8, dry and preheat lime powder granule through shunt tubes 12 and gas outlet 13, thereby lime powder granule in the time of avoiding limekiln 9 calcination excessive and influence calcination efficiency, simultaneously, the waste heat of in the in-process synchronous utilization pulse bag dust collector unit 8 preheats lime powder granule, thereby make lime powder granule can heat up rapidly when entering into limekiln 9, calcination reaction speed and efficiency have been improved, simultaneously, the waste heat in the lime kiln 9 flue gas has been utilized, in the stoving and the extra energy-conserving heat of consuming in the course of drying and preheating, the extra environmental protection is not needed.
Working principle:
the invention firstly adopts the Raymond mill unit 4 to crush the crushed limestone, then carries out humidification on lime powder formed by the crushed limestone through a humidification process, improves adhesion, then enters a granulation process, forms particles with consistent particle size through a pair of roller type extrusion granulator 6, calcines the particles into a lime kiln 9 after a drying and preheating process to form lime, packages and leaves a factory after cooling, forms the lime powder after crushing and granulating the particles uniformly in particle size, has more uniform and stable reaction in the calcination process, avoids the problems that the limestone is directly crushed and calcined in the traditional production mode, easily causes uneven limestone particle size, easily generates over-burn or under-burn in the calcination process, improves the stability and the working efficiency when lime is calcined, simultaneously, reduces the density of the lime powder particles after granulating, has high particle porosity, saves the consumption of fossil fuel, saves more energy and environmental protection, simultaneously, packages and leaves a customer conveniently after the lime particles after the calcination, improves the convenience of product use, improves the competitive power of the product, directly crushes the limestone by adopting the crushing mill unit to directly crush the limestone, and fully utilizes the crushed limestone to form the lime, thereby fully waste the problems that the crushed limestone is required to be fully utilized when the crushed limestone is directly crushed by the crushing mill unit 4, and the raw materials are fully used for the raw materials are fully wasted when the crushed limestone is crushed and the crushed by the crushed limestone is required to be produced, in addition, the high-temperature flue gas generated in the lime kiln 9 enters the hot air pipe 2 after being filtered and dedusted by the pulse bag type dust collector unit 8, and the lime powder particles are dried and preheated by the shunt pipe 12 and the air outlet 13, so that the influence of excessive moisture in the lime powder particles on the calcination efficiency in the lime kiln 9 is avoided, meanwhile, the lime powder particles are preheated by synchronously utilizing the waste heat of the pulse bag type dust collector unit 8 in the drying process, so that the lime powder particles can be rapidly heated when entering the lime kiln 9, the calcination reaction speed and efficiency are improved, the production efficiency is improved, and meanwhile, the waste heat in the flue gas of the lime kiln 9 is utilized, and the extra consumed heat is not needed in the drying and preheating processes, so that the lime kiln is more energy-saving and environment-friendly.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
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, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The utility model provides a lime environmental protection production technology, its characterized in that includes crushing process, humidification process, pelletization process, dry preheating process, calcination process, cooling process and packing process, crushing process adopts jaw breaker (3) to become small-size lime stone with lime stone, crushing process adopts Raymond mill unit (4) to smash small-size lime stone into lime powder, humidification process adopts humidification tunnel (5) to be lime powder humidification, pelletization process adopts pair roller extrusion granulator (6) to the lime powder extrusion pelletization after the humidification, forms lime powder granule, dry preheating process is through drying tunnel (7) to dry preheating lime powder granule, calcination process utilizes lime kiln (9) to calcine the lime powder granule after the drying preheating to form lime granule, cooling process is the forced air cooling, packing process adopts packagine machine (10) to pack and forms final lime granule product.
2. The lime environment-friendly production process according to claim 1, wherein the humidifying tunnel (5) comprises an internally mounted belt conveyor (19), a second feeding port (16) is connected to the top surface of one end of the humidifying tunnel (5) in a penetrating manner, a second discharging port (20) is provided to the bottom surface of the other end of the humidifying tunnel (5), a mist conveying pipe (17) is arranged on a fixing frame of the top surface of the humidifying tunnel (5), a mist outlet (18) is connected to the surface of the mist conveying pipe (17) in a penetrating manner, the mist outlet (18) penetrates through the humidifying tunnel (5) and extends to the upper portion of the top surface of the belt conveyor (19), and an industrial humidifier (21) is connected to one end of the mist conveying pipe (17) in a penetrating manner.
3. The lime environment-friendly production process according to claim 1, wherein the drying tunnel (7) comprises a mesh belt conveyor (14) which is internally installed, a first feeding port (11) is connected to the top surface of one end of the drying tunnel (7) in a penetrating way, a first discharging port (15) is formed in the bottom surface of the other end of the drying tunnel (7), a shunt tube (12) is arranged on a fixing frame on the top surface of the drying tunnel (7), an air outlet (13) is connected to the surface of the shunt tube (12) in a penetrating way, the air outlet (13) penetrates through the drying tunnel (7) and extends to the upper portion of the top surface of the mesh belt conveyor (14), and a hot air pipe (2) is connected to one end of the shunt tube (12) in a penetrating way.
4. The lime environment-friendly production process according to claim 2, wherein the discharge end of the jaw crusher (3) is connected with the feed end of the Raymond mill unit (4) through a conveyor, the discharge end of the Raymond mill unit (4) is connected with the second feed port (16) of the humidifying tunnel (5) through the conveyor, and the second discharge port (20) of the humidifying tunnel (5) is in through connection with the feed end of the twin-roll extrusion granulator (6).
5. A lime environment-friendly production process according to claim 3, wherein the discharge end of the twin-roll extrusion granulator (6) is connected with the first feed inlet (11) of the drying tunnel (7) through a conveyor, and the first discharge outlet (15) of the drying tunnel (7) is connected with the feed end of the lime kiln (9) through a conveyor.
6. The lime environment-friendly production process as claimed in claim 2, wherein a plurality of fog outlets (18) are arranged at equal intervals.
7. A lime environment-friendly production process according to claim 3, wherein a plurality of shunt tubes (12) are arranged, and a plurality of air outlets (13) are arranged on the surface of the shunt tubes (12) at equal intervals.
8. The lime environment-friendly production process according to claim 1, wherein the discharge end of the lime kiln (9) is provided with air cooling equipment, the air cooling equipment adopts tunnel type air cooling equipment, and the discharge end of the air cooling equipment is connected with the feed end of the packaging machine (10) through a conveyor.
9. The lime environment-friendly production process according to claim 1, wherein a plurality of the pair-roller type extrusion granulator (6) are arranged.
10. The pulse bag type dust collector is characterized by comprising the lime kiln (9), a hot air pipe (2) and a pulse belt type dust collector unit, wherein the smoke inlet end of the pulse bag type dust collector unit (8) is in through connection with the smoke outlet end of the lime kiln (9) through a smoke pipe (1), and the air outlet end of the pulse bag type dust collector unit (8) is in through connection with the hot air pipe (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211723346.5A CN116102269A (en) | 2022-12-30 | 2022-12-30 | Environment-friendly lime production process and pulse bag type dust collector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211723346.5A CN116102269A (en) | 2022-12-30 | 2022-12-30 | Environment-friendly lime production process and pulse bag type dust collector |
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| CN116102269A true CN116102269A (en) | 2023-05-12 |
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| CN202211723346.5A Pending CN116102269A (en) | 2022-12-30 | 2022-12-30 | Environment-friendly lime production process and pulse bag type dust collector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116535114A (en) * | 2023-06-25 | 2023-08-04 | 邯郸市鼎正重型机械有限公司 | Process and crushing device for producing active lime by calcining small-particle limestone |
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| FR2219129A1 (en) * | 1973-02-22 | 1974-09-20 | Prerovske Strojirny Np | Burnt lime prodn. from grains or powders - by compression to particles and pref. pre-heating before calcination |
| JP2000178047A (en) * | 1998-12-17 | 2000-06-27 | Okutama Kogyo Co Ltd | Production of granular quicklime maintaining strength |
| RU2593396C1 (en) * | 2015-03-17 | 2016-08-10 | Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | Method of obtaining lime |
| RU2016125700A (en) * | 2016-06-27 | 2018-01-09 | Федеральное государственное автономное образовательное учреждение высшего образования "Крымский федеральный университет имени В.И. Вернадского" | The method of firing dispersed limestone |
| CN112110751A (en) * | 2020-09-25 | 2020-12-22 | 安徽省恒金矿业有限公司 | Lime stone dust collecting and processing equipment |
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- 2022-12-30 CN CN202211723346.5A patent/CN116102269A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2219129A1 (en) * | 1973-02-22 | 1974-09-20 | Prerovske Strojirny Np | Burnt lime prodn. from grains or powders - by compression to particles and pref. pre-heating before calcination |
| JP2000178047A (en) * | 1998-12-17 | 2000-06-27 | Okutama Kogyo Co Ltd | Production of granular quicklime maintaining strength |
| RU2593396C1 (en) * | 2015-03-17 | 2016-08-10 | Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | Method of obtaining lime |
| RU2016125700A (en) * | 2016-06-27 | 2018-01-09 | Федеральное государственное автономное образовательное учреждение высшего образования "Крымский федеральный университет имени В.И. Вернадского" | The method of firing dispersed limestone |
| CN112110751A (en) * | 2020-09-25 | 2020-12-22 | 安徽省恒金矿业有限公司 | Lime stone dust collecting and processing equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116535114A (en) * | 2023-06-25 | 2023-08-04 | 邯郸市鼎正重型机械有限公司 | Process and crushing device for producing active lime by calcining small-particle limestone |
| CN116535114B (en) * | 2023-06-25 | 2024-07-12 | 邯郸市鼎正重型机械有限公司 | Process and crushing device for producing active lime by calcining small-particle limestone |
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