CN111646710A - Suspension calcination production line for powdered lime and suspension calcination process thereof - Google Patents
Suspension calcination production line for powdered lime and suspension calcination process thereof Download PDFInfo
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- CN111646710A CN111646710A CN202010612582.4A CN202010612582A CN111646710A CN 111646710 A CN111646710 A CN 111646710A CN 202010612582 A CN202010612582 A CN 202010612582A CN 111646710 A CN111646710 A CN 111646710A
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- crushing
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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
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- 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
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
Abstract
The invention relates to the technical field of powder lime production equipment, in particular to a powder lime suspension calcining production line and a suspension calcining process thereof, which comprise a limestone raw material processing device, wherein the right lower end of the limestone raw material processing device is provided with a primary drying processing device, and the right end of a suspension calcining cooling device is provided with a pulverized coal supply device; the invention does not need to process limestone by using separate equipment, can directly finish crushing in the whole production system, reduces the production cost of the limestone, also reduces the time consumed by independently processing the limestone, further improves the production efficiency of the limestone, simultaneously can use the collected and processed hot tail gas for primary drying of the crushed limestone, reduces the suspension calcining time of the powdered lime, can more effectively control the calcining quality of the powdered lime, greatly improves the production quality of the powdered lime, can not only carry out secondary purification on waste gas, but also is very convenient to clean, and greatly improves the treatment effect of the waste gas.
Description
Technical Field
The invention relates to the technical field of powdered lime production equipment, in particular to a powdered lime suspension calcination production line and a suspension calcination process thereof.
Background
Limestone is a calcium carbonate compound, is a common substance on the earth, can be found in rocks, is also a main component of animal back shells and snail shells, exists in the nature by calcite and aragonite, is also a raw material of building materials and industry, is produced by limestone, namely powdered lime, and the processing of the powdered lime needs to carry out calcination reaction on large-particle limestone blocks;
the existing powdered lime suspension calcining production line and the suspension calcining process thereof are used for performing suspension calcining on the processed limestone and further processing the limestone by using separate equipment, so that the production cost is high, the production efficiency of the powdered lime can be reduced, the limestone cannot be simply dried before being put into production, the suspension calcining time of the powdered lime is prolonged, and the processing time of the powdered lime is prolonged.
Disclosure of Invention
The invention aims to provide a powdered lime suspension calcining production line and a suspension calcining process thereof, and aims to solve the problems that the conventional powdered lime suspension calcining production line and the suspension calcining process thereof are used for performing suspension calcining on processed limestone and further requiring separate equipment for processing, so that the production cost is high, the production efficiency of powdered lime can be reduced, the limestone cannot be simply dried before being put into production, the suspension calcining time of the powdered lime is prolonged, and the processing time of the powdered lime is prolonged.
In order to achieve the purpose, the invention provides the following technical scheme: a lime powder suspension calcination production line comprises a limestone raw material processing device, wherein a primary drying processing device is arranged at the right lower end of the limestone raw material processing device, a limestone powder preparation device is arranged at the right end of the primary drying processing device, a feeding device is arranged at the right end of the limestone powder preparation device, a suspension calcination cooling device is arranged at the right end of the feeding device, a pulverized coal supply device is arranged at the right end of the suspension calcination cooling device, a fuel gas supply device is arranged at the lower end, located at the lower end of the pulverized coal supply device, of the suspension calcination cooling device, a first feeding end is arranged at the left lower end of the suspension calcination cooling device, a second feeding end is arranged at the right lower end of the suspension calcination cooling device, a fan air outlet pipe is arranged at the left end, located at the first feeding end, of the pulverized coal supply device, and a finished product storage, the left end of the suspension calcination cooling device, which is positioned at the lower end of the feeding device, is provided with a powder filtering and collecting device, the left lower end of the powder filtering and collecting device is provided with a first waste gas treatment device, and the left end of the first waste gas treatment device, which is positioned at the lower end of the feeding device, is provided with a second waste gas treatment device.
In order to directly put large-particle limestone into production, the limestone suspension calcining production line is preferably provided with the limestone raw material processing device which comprises a crushing box, a crushing roller, crushing teeth, crushing knives, a crushing motor and a filter screen, wherein the lower end of the crushing box is fixedly connected with the crushing box, the crushing box and the crushing box are respectively and rotatably connected with the crushing roller and the crushing roller, the surfaces of the crushing roller and the crushing roller are respectively and fixedly connected with the crushing teeth and the crushing knives, the right ends of the crushing box and the crushing box are respectively and fixedly connected with the crushing motor and the crushing motor, the crushing roller and the crushing roller are respectively and symmetrically arranged about the horizontal central line of the crushing box and the horizontal central line of the crushing box, the crushing teeth on the surfaces of the two crushing rollers are mutually meshed, and the crushing knives on the surfaces of the two crushing rollers are, the inside of smashing the case is located the lower extreme fixedly connected with filter screen of smashing the roller, and the filter screen separates mutually with smashing the sword.
In order to simply dry the crushed limestone, it is preferable that the suspension calcination line for powdered lime of the present invention is configured such that a first conveyor is disposed between the limestone raw material processing device and the primary drying device, a second conveyor is disposed inside the primary drying device, a right end of the first conveyor at a lower end of the limestone raw material processing device is located above a left end of the second conveyor inside the primary drying device, the primary drying device includes a drying box, an exhaust pipe and an exhaust nozzle, the drying box is fixedly connected inside with the exhaust pipe, the exhaust pipe is fixedly connected inside with the exhaust nozzle, the exhaust pipe is located outside the second conveyor, and a mouth of the exhaust nozzle faces the second conveyor.
In order to enable the crushed limestone to automatically move from the limestone powder preparation device to the feeding device, as an optimal preference of the fine lime suspension calcination production line, a third conveying device and a first lifting conveying device are arranged between the limestone powder preparation device and the feeding device, the third conveying device is positioned below the limestone powder preparation device, the third conveying device is positioned at the right end of the first lifting conveying device, and the extending end of the left lower end of the first lifting conveying device is positioned below the right end of the third conveying device.
In order to enable lime to be moved into the suspension calcination cooling device from the feeding device, as a preferable preference of the suspension calcination production line for lime powder of the invention, a fourth conveying device and a second lifting conveying device are arranged between the feeding device and the suspension calcination cooling device, the fourth conveying device is positioned below the feeding device, the fourth conveying device is positioned at the right end of the second lifting conveying device, and the extending end of the left lower end of the second lifting conveying device is positioned below the right end of the fourth conveying device.
In order to enable lime to be moved from the suspension calcination cooling device to the finished product storage device, as an optimal preference of the suspension calcination production line for lime powder of the invention, a fifth conveying device and a third lifting conveying device are arranged between the suspension calcination cooling device and the finished product storage device, the fifth conveying device is positioned below the suspension calcination cooling device, the fifth conveying device is positioned at the right end of the third lifting conveying device, and the extending end of the left lower end of the third lifting conveying device is positioned below the right end of the fifth conveying device.
In order to improve the calcination cooling effect of the powdered lime, as a preferable suspension calcination production line of the powdered lime, the suspension calcination cooling device includes a1 heating hopper, a2 heating hopper, a3 heating hopper, a4 heating hopper, a5 heating hopper, b1 cooling hopper, b2 cooling hopper, b3 cooling hopper and a decomposing furnace, the right lower end of the a1 heating hopper is provided with a2 heating hopper, the left lower end of the a2 heating hopper is provided with a3 heating hopper, the right lower end of the a3 heating hopper is provided with a4 heating hopper, the left lower end of the a4 heating hopper is provided with a5 heating hopper, the right lower end of the a5 heating hopper is provided with a decomposing furnace, the lower end of the decomposing furnace is provided with a b1 cooling hopper, the left lower end of the b1 cooling hopper is provided with a b2 cooling hopper, and the right lower end of the b2 cooling hopper is provided with b3 cooling hopper.
In order to ensure the flow of gas in the whole system, the preferable powder lime suspension calcining production line of the invention is that the left end of the air outlet pipe of the fan is provided with a first fan, the heating hopper a and the powder filtering and collecting device are communicated with each other through a second fan, the powder filtering and collecting device and the limestone powder preparation device are communicated with each other through a third fan, and a fourth fan is arranged between the first waste gas treatment device and the second waste gas treatment device.
In order to perform secondary purification on waste gas discharged from the whole system, the preferable waste gas treatment device for the suspension calcination production line of the lime powder comprises a treatment box, a filter element, an activated carbon plate, an adsorption bag and a box cover, wherein the filter element, the activated carbon plate and the adsorption bag are sequentially clamped and mounted in the treatment box from bottom to top, the inside of the activated carbon plate adopts a hole-opening design, the opening of the treatment box is clamped and connected with the box cover, and the filter element, the activated carbon plate, the adsorption bag and the box cover are all designed in a circular truncated cone-shaped structure.
The invention also provides a powdered lime calcining suspension calcining process, which comprises the following steps: the power supply of the whole system is switched on, the operation of the whole system is controlled by an external terminal, limestone is put into a limestone raw material processing device, a crushing motor drives a crushing roller in a crushing box to rotate, the crushing roller drives a crushing tooth to rotate, the crushing tooth crushes the entering limestone, the crushed limestone enters a crushing box, a crushing motor drives a crushing roller to rotate, the crushing roller drives a crushing knife to rotate, the crushed limestone is crushed by the rotating crushing knife, the crushed limestone is filtered by a filter screen, the limestone meeting the processing requirement falls onto a first conveying device from the filter screen, the first conveying device brings the crushed limestone onto a second conveying device, a fourth fan sucks the processed tail gas into an exhaust pipe, the exhaust pipe discharges the tail gas into the surface of the transported limestone through an exhaust nozzle, further realizes the primary drying of the limestone, the second conveying device prepares the primarily dried limestone powder into a device, after being simply prepared by the limestone powder preparation device, the lime falls on the third conveying device, the lime is conveyed to the first lifting conveying device by the third conveying device, the lime is conveyed to the feeding device by the first lifting conveying device, the lime is fed by the feeding device, the lime falls on the fourth conveying device, the lime is conveyed to the second lifting conveying device by the fourth conveying device, the lime is conveyed to the suspension calcining cooling device by the second lifting conveying device for calcining and cooling, the air is pumped into the suspension calcining cooling device by the first fan, the pulverized coal supply device and the fuel gas supply device supply the suspension calcining cooling device, the multistage suspension calcining and multistage cooling of the lime are realized, the calcining quality and the cooling effect of the lime are greatly improved, the waste gas generated by the suspension calcining cooling device is pumped into the powder filtering and collecting device by the second fan, meanwhile, powder produced in the limestone powder preparation device is pumped into the powder filtering and collecting device through the third fan, waste gas treated by the powder filtering and collecting device enters the first waste gas treatment device, the first waste gas treatment device pumps the waste gas treated in sequence into the second waste gas treatment device through the fourth fan, a filter element, an active carbon plate and an adsorption bag in the second waste gas treatment device carry out secondary treatment on the waste gas, finally, the fully treated waste gas is supplied to the primary drying treatment device, and the separated lime powder is placed on the third conveying device through the first waste gas treatment device, so that the lime powder is processed again.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the crushing box, the crushing roller, the crushing teeth, the crushing knife, the crushing motor and the filter screen are arranged, the crushing motor and the crushing motor respectively drive the crushing teeth and the crushing knife on the surfaces of the crushing roller and the crushing roller to rotate, large-particle limestone is crushed by the crushing roller, the crushed limestone is crushed by the crushing knife, finally the qualified crushed limestone is screened out by the filter screen, and further, the crushing is directly finished in the whole production system without using separate equipment for processing, so that the production cost of the limestone is reduced, the time consumed by separately processing the limestone is also reduced, and the production efficiency of the limestone is further improved.
2. According to the invention, the drying box body and the exhaust pipe are arranged, so that the collected and processed hot tail gas can be used for primarily drying the crushed limestone, the suspension calcination time of the powdered lime is reduced, the calcination quality of the powdered lime can be more effectively controlled, the production quality of the powdered lime is greatly improved, and the processing time of the powdered lime is shortened.
3. The waste gas treatment device is provided with the treatment box, the filter element, the activated carbon plate, the adsorption bag and the box cover, so that the waste gas can be purified for the second time, the waste gas can be cleaned conveniently, and the treatment effect of the waste gas is greatly improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the crushing box of the present invention;
FIG. 3 is a schematic view of the internal structure of the crushing box according to the present invention;
FIG. 4 is a schematic view of the internal structure of the primary drying apparatus according to the present invention;
FIG. 5 is a schematic view of the internal structure of a second exhaust treatment device according to the present invention.
In the figure: 1. a limestone raw material processing device; 2. limestone powder preparation device; 3. a feeding device; 4. a suspension calcination cooling device; 5. a pulverized coal supply device; 6. a gas supply device; 7. a first feed end; 8. a second feed end; 9. an air outlet pipe of the fan; 10. a finished product storage device; 11. a powder filtering and collecting device; 12. a first waste gas treatment device; 13. a second waste gas treatment device; 14. a primary drying treatment device; 101. a crushing box; 102. a crushing box; 103. a crushing roller; 104. a crushing roller; 105. crushing teeth; 106. a crushing knife; 107. a crushing motor; 108. a grinding motor; 109. a filter screen; 141. drying the box body; 142. an exhaust pipe; 143. an exhaust nozzle; 41. a1 heating bucket; 42. a2 heating bucket; 43. a3 heating bucket; 44. a4 heating bucket; 45. a5 heating bucket; 46. b1 cooling bucket; 47. b2 cooling bucket; 48. b3 cooling bucket; 49. a decomposing furnace; 131. a treatment tank; 132. a filter element; 133. an activated carbon plate; 134. adsorbing the bag; 135. and a box cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1-5, a lime powder suspension calcining production line comprises a limestone raw material processing device 1, a primary drying processing device 14 is arranged at the right lower end of the limestone raw material processing device 1, a limestone powder preparation device 2 is arranged at the right end of the primary drying processing device 14, a feeding device 3 is arranged at the right end of the limestone powder preparation device 2, a suspension calcining cooling device 4 is arranged at the right end of the feeding device 3, a pulverized coal supply device 5 is arranged at the right end of the suspension calcining cooling device 4, a fuel gas supply device 6 is arranged at the right end of the suspension calcining cooling device 4, a first feeding end 7 is arranged at the left lower end of the suspension calcining cooling device 4, a second feeding end 8 is arranged at the right lower end of the suspension calcining cooling device 4, a fan air outlet pipe 9 is arranged at the left end of the suspension calcining cooling device 4, which is arranged at the first feeding end 7, the right end of the pulverized coal supply device 5 is provided with a finished product storage device 10, the lower end, located at the feeding device 3, of the left end of the suspension calcination cooling device 4 is provided with a powder filtering and collecting device 11, the left lower end of the powder filtering and collecting device 11 is provided with a first waste gas treatment device 12, and the lower end, located at the feeding device 3, of the left end of the first waste gas treatment device 12 is provided with a second waste gas treatment device 13.
Specifically, the limestone raw material processing device 1 comprises a crushing box 101, a crushing box 102, a crushing roller 103, a crushing roller 104, crushing teeth 105, a crushing knife 106, a crushing motor 107, a crushing motor 108 and a filter screen 109, wherein the lower end of the crushing box 101 is fixedly connected with the crushing box 102, the crushing roller 103 and the crushing roller 104 are respectively and rotatably connected inside the crushing box 101 and the crushing box 102, the crushing teeth 105 and the crushing knife 106 are respectively and fixedly connected on the surfaces of the crushing roller 103 and the crushing roller 104, the crushing motor 107 and the crushing motor 108 are respectively and fixedly connected on the right ends of the crushing box 101 and the crushing box 102, the crushing roller 103 and the crushing roller 104 are respectively and symmetrically arranged about the horizontal center line of the crushing box 101 and the horizontal center line of the crushing box 102, the crushing teeth 105 on the surfaces of the two crushing rollers 103 are mutually meshed, and the crushing knives 106 on the surfaces of the two crushing rollers 104 are distributed, a filter screen 109 is fixedly connected to the lower end of the crushing roller 104 inside the crushing box 102, and the filter screen 109 is separated from the crushing blade 106.
In this embodiment, realize the smashing of large granule lime stone, need not to adopt solitary equipment to handle, not only reduced the processing cost, still guaranteed production efficiency simultaneously.
Specifically, a first conveying device is arranged between the limestone raw material processing device 1 and the primary drying processing device 14, a second conveying device is arranged inside the primary drying processing device 14, the right end of a first conveying device at the lower end of the limestone raw material processing device 1 is positioned above the left end of a second conveying device inside the primary drying processing device 14, the primary drying processing device 14 comprises a drying box body 141, an exhaust pipe 142 and an exhaust nozzle 143, the exhaust pipe 142 is fixedly connected inside the drying box body 141, the exhaust nozzle 143 is fixedly connected inside the exhaust pipe 142, the exhaust pipe 142 is positioned outside the second conveying device, and the mouth of the exhaust nozzle 143 is opposite to the second conveying device.
In the embodiment, the primary drying of the crushed lime is realized, the suspension calcination time of the powdered lime is reduced, and the calcination quality of the powdered lime is effectively controlled.
Specifically, a third conveying device and a first lifting conveying device are arranged between the limestone powder preparation device 2 and the feeding device 3, the third conveying device is located below the limestone powder preparation device 2, the third conveying device is located at the right end of the first lifting conveying device, and the extending end of the left lower end of the first lifting conveying device is located below the right end of the third conveying device.
In this embodiment, the powdered lime discharged from the limestone powder preparation device 2 is transferred to the inside of the feeding device 3 by the third transportation device and the first lifting transportation device.
Specifically, a fourth conveying device and a second lifting conveying device are arranged between the feeding device 3 and the suspension calcining cooling device 4, the fourth conveying device is located below the feeding device 3, the fourth conveying device is located at the right end of the second lifting conveying device, and the extending end of the left lower end of the second lifting conveying device is located below the right end of the fourth conveying device.
In this embodiment, the powdered lime dropped from the feeding device 3 is transferred to the suspension calcination cooling device 4 for processing.
Specifically, be provided with fifth conveyer and third lift conveyer between cooling device 4 and finished product storage device 10 are calcined in the suspension, and fifth conveyer is located the below that cooling device 4 was calcined in the suspension, fifth conveyer is located third lift conveyer's right-hand member, and the extension end of the left lower extreme of third lift conveyer is located the below of fifth conveyer right-hand member.
In this embodiment, the lime in the suspension calcination cooling device 4 is transported to the finished product storage device 10.
Specifically, the suspension calcination cooling device 4 includes a1 heating bucket 41, a2 heating bucket 42, a3 heating bucket 43, a4 heating bucket 44, a5 heating bucket 45, b1 cooling bucket 46, b2 cooling bucket 47, b3 cooling bucket 48, and a decomposition furnace 49, the right lower end of the a1 heating bucket 41 is provided with the a2 heating bucket 42, the left lower end of the a2 heating bucket 42 is provided with the a3 heating bucket 43, the right lower end of the a3 heating bucket 43 is provided with the a4 heating bucket 44, the left lower end of the a4 heating bucket 44 is provided with the a5 heating bucket 45, the right lower end of the a5 heating bucket 45 is provided with the decomposition furnace 49, the lower end of the decomposition furnace 49 is provided with the b1 cooling bucket 46, the left lower end of the b1 cooling bucket 46 is provided with the b2 cooling bucket 47, and the right lower end of the b2 cooling bucket 47 is provided with the b3 cooling bucket 48.
In the embodiment, multiple suspension calcination and multi-stage cooling of the powdered lime are realized, the calcination quality of the powdered lime is greatly improved, and the cooling efficiency of the powdered lime is improved.
Specifically, the left end of the fan air outlet pipe 9 is provided with a first fan, the a1 heating hopper 41 and the powder filtering and collecting device 11 are mutually communicated through a second fan, the powder filtering and collecting device 11 and the limestone powder preparation device 2 are mutually communicated through a third fan, and a fourth fan is arranged between the first exhaust gas treatment device 12 and the second exhaust gas treatment device 13.
In the embodiment, the gas circulation device is used for gas circulation in the whole system, and normal operation of the system is guaranteed.
Specifically, two 13 exhaust treatment device are including handling case 131, filter element 132, activated carbon plate 133, adsorb package 134 and case lid 135, handle the inside of case 131 and install filter element 132, activated carbon plate 133 and adsorb package 134 by supreme block in proper order down, and the inside trompil design that adopts of activated carbon plate 133, the oral area block of handling case 131 is connected with case lid 135, filter element 132, activated carbon plate 133, adsorb package 134 and case lid 135 all are round platform shape structural design.
In this embodiment, carry out secondary purification to the tail gas that flows out, improved the purifying effect to tail gas.
The suspension calcining process of the lime powder comprises the following steps: firstly, the power of the whole system is switched on, the operation of the whole system is controlled by an external terminal, limestone is put into the limestone raw material processing device 1, the crushing motor 107 drives the crushing roller 103 in the crushing box 101 to rotate, the crushing roller 103 drives the crushing teeth 105 to rotate, the crushing teeth 105 crush the entering limestone, the crushed limestone enters the crushing box 102, the crushing motor 108 drives the crushing roller 104 to rotate, the crushing roller 104 drives the crushing knife 106 to rotate, the crushed limestone is crushed by the rotating crushing knife 106, the crushed limestone is filtered by the filter screen 109, the limestone meeting the processing requirements falls onto the first conveying device from the filter screen 109, the crushed limestone is taken onto the second conveying device by the first conveying device, the processed tail gas is pumped into the exhaust pipe 142 by the fourth fan, the exhaust pipe 142 discharges the tail gas onto the surface of the transported limestone by the exhaust nozzle 143, further realizing the preliminary drying of the limestone, the second transportation device is used for transporting the lime to the first lifting transportation device through the third transportation device in the limestone powder preparation device 2 after the preliminary drying, the lime is transported to the feeding device 3 through the first lifting transportation device after the lime is simply prepared through the limestone powder preparation device 2, the feeding device 3 is used for feeding the lime, the lime falls on the fourth transportation device, the fourth transportation device is used for transporting the lime to the second lifting transportation device, the lime is transported to the suspension calcination cooling device 4 through the second lifting transportation device for calcination and cooling, the first fan is used for pumping air into the suspension calcination cooling device 4, the pulverized coal supply device 5 and the fuel gas supply device 6 are used for supplying the suspension calcination cooling device 4, and the multistage suspension calcination and multistage cooling of the lime are realized, the calcining quality and the cooling effect of lime are greatly improved, waste gas generated by the suspension calcining cooling device 4 is pumped into the powder filtering and collecting device 11 through the second fan, meanwhile, powder generated in the limestone powder preparation device 2 is pumped into the powder filtering and collecting device 11 through the third fan, waste gas treated by the powder filtering and collecting device 11 enters the first waste gas treatment device 12, the waste gas treated in sequence is pumped into the second waste gas treatment device 13 through the fourth fan by the first waste gas treatment device 12, the filter element 132, the activated carbon plate 133 and the adsorption bag 134 in the second waste gas treatment device 13 carry out secondary treatment on the waste gas, the fully treated waste gas is finally used by the primary drying treatment device 14, meanwhile, the separated lime powder is placed on the third conveying device by the first waste gas treatment device 12, and then the lime powder is processed again.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The suspension calcining production line of the powdered lime and the suspension calcining process thereof comprise a limestone raw material processing device, and are characterized in that: the right lower end of the limestone raw material processing device is provided with a primary drying processing device, the right end of the primary drying processing device is provided with a limestone powder preparation device, the right end of the limestone powder preparation device is provided with a feeding device, the right end of the feeding device is provided with a suspension calcination cooling device, the right end of the suspension calcination cooling device is provided with a pulverized coal supply device, the right end of the suspension calcination cooling device, which is positioned at the lower end of the pulverized coal supply device, is provided with a gas supply device, the left lower end of the suspension calcination cooling device is provided with a first feeding end, the right lower end of the suspension calcination cooling device is provided with a second feeding end, the left end of the lower end of the suspension calcination cooling device, which is positioned at the first feeding end, is provided with a fan air outlet pipe, the right end of the pulverized coal supply device is provided with a storage finished product device, and the left, the left lower end of the powder filtering and collecting device is provided with a first waste gas treatment device, and the left end of the first waste gas treatment device, which is positioned at the lower end of the feeding device, is provided with a second waste gas treatment device.
2. The production line for suspension calcination of powdered lime according to claim 1, characterized in that: the limestone raw material processing device comprises a crushing box, a crushing roller, crushing teeth, a crushing knife, a crushing motor and a filter screen, the lower end of the crushing box is fixedly connected with a crushing box, the crushing roller and the crushing roller are respectively and rotatably connected inside the crushing box and the crushing box, the crushing roller and the crushing roller are respectively and fixedly connected with crushing teeth and a crushing knife, the right ends of the crushing box and the crushing box are respectively and fixedly connected with a crushing motor and a crushing motor, the crushing rollers and the crushing rollers are symmetrically arranged about the horizontal central lines of the crushing box and the crushing box respectively, the crushing teeth on the surfaces of the two crushing rollers are meshed with each other, the crushing knives on the surfaces of the two crushing rollers are distributed in a staggered manner, the inside of smashing the case is located the lower extreme fixedly connected with filter screen of smashing the roller, and the filter screen separates mutually with smashing the sword.
3. The production line for suspension calcination of powdered lime according to claim 1, characterized in that: the utility model discloses a limestone raw material processing device, including limestone raw material processing device, primary drying processing device, exhaust pipe and exhaust nozzle, be provided with first conveyor between limestone raw material processing device and the primary drying processing device, primary drying processing device's inside is provided with second conveyor, and the right-hand member of the first conveyer of limestone raw material processing device lower extreme is located the top of the inside second conveyor left end of primary drying processing device, primary drying processing device is including stoving box, exhaust pipe and exhaust nozzle, the inside fixedly connected with blast pipe of stoving box, the inboard fixedly connected with exhaust nozzle of blast pipe, the blast pipe is located the outside of second conveyor, and the mouth of exhaust nozzle is just to second conveyor.
4. The production line for suspension calcination of powdered lime according to claim 1, characterized in that: and a third conveying device and a first lifting conveying device are arranged between the limestone powder preparation device and the feeding device, the third conveying device is positioned below the limestone powder preparation device, the third conveying device is positioned at the right end of the first lifting conveying device, and the extending end of the left lower end of the first lifting conveying device is positioned below the right end of the third conveying device.
5. The production line for suspension calcination of powdered lime according to claim 1, characterized in that: and a fourth conveying device and a second lifting conveying device are arranged between the feeding device and the suspension calcining cooling device, the fourth conveying device is positioned below the feeding device, the fourth conveying device is positioned at the right end of the second lifting conveying device, and the extending end of the left lower end of the second lifting conveying device is positioned below the right end of the fourth conveying device.
6. The production line for suspension calcination of powdered lime according to claim 1, characterized in that: the suspension calcining cooling device is characterized in that a fifth conveying device and a third lifting conveying device are arranged between the suspension calcining cooling device and the finished product storing device, the fifth conveying device is located below the suspension calcining cooling device, the fifth conveying device is located at the right end of the third lifting conveying device, and the extending end of the left lower end of the third lifting conveying device is located below the right end of the fifth conveying device.
7. The production line for suspension calcination of powdered lime according to claim 1, characterized in that: the suspension calcination cooling device comprises an a1 heating hopper, an a2 heating hopper, an a3 heating hopper, an a4 heating hopper, an a5 heating hopper, a b1 cooling hopper, a b2 cooling hopper, a b3 cooling hopper and a decomposition furnace, wherein the right lower end of the a1 heating hopper is provided with an a2 heating hopper, the left lower end of the a2 heating hopper is provided with an a3 heating hopper, the right lower end of the a3 heating hopper is provided with an a4 heating hopper, the left lower end of the a4 heating hopper is provided with an a5 heating hopper, the right lower end of the a5 heating hopper is provided with the decomposition furnace, the lower end of the decomposition furnace is provided with a b1 cooling hopper, the left lower end of the b1 cooling hopper is provided with a b2 cooling hopper, and the right lower end of the b2 cooling hopper is provided with a b3 cooling hopper.
8. The production line for suspension calcination of powdered lime according to claim 6, characterized in that: the left end of the fan air outlet pipe is provided with a first fan, the heating hopper and the powder filtering and collecting device are mutually communicated through a second fan, the powder filtering and collecting device and the limestone powder preparation device are mutually communicated through a third fan, and a fourth fan is arranged between the first waste gas treatment device and the second waste gas treatment device.
9. The production line for suspension calcination of powdered lime according to claim 1, characterized in that: two exhaust treatment device are including handling case, filter core, activated carbon plate, absorption package and case lid, handle the inside of case and install filter core, activated carbon plate and absorption package by supreme block in proper order down, and the inside trompil design that adopts of activated carbon plate, the oral area block of handling the case is connected with the case lid, filter core, activated carbon plate, absorption package and case lid all are round platform shape structural design.
10. The suspension calcination production line for powdered lime as claimed in claims 1 to 9, wherein the suspension calcination process is as follows: the power supply of the whole system is switched on, the operation of the whole system is controlled by an external terminal, limestone is put into a limestone raw material processing device, a crushing motor drives a crushing roller in a crushing box to rotate, the crushing roller drives a crushing tooth to rotate, the crushing tooth crushes the entering limestone, the crushed limestone enters a crushing box, a crushing motor drives a crushing roller to rotate, the crushing roller drives a crushing knife to rotate, the crushed limestone is crushed by the rotating crushing knife, the crushed limestone is filtered by a filter screen, the limestone meeting the processing requirement falls onto a first conveying device from the filter screen, the first conveying device brings the crushed limestone onto a second conveying device, a fourth fan sucks the processed tail gas into an exhaust pipe, the exhaust pipe discharges the tail gas into the surface of the transported limestone through an exhaust nozzle, further realizes the primary drying of the limestone, the second conveying device prepares the primarily dried limestone powder into a device, after being simply prepared by the limestone powder preparation device, the lime falls on the third conveying device, the lime is conveyed to the first lifting conveying device by the third conveying device, the lime is conveyed to the feeding device by the first lifting conveying device, the lime is fed by the feeding device, the lime falls on the fourth conveying device, the lime is conveyed to the second lifting conveying device by the fourth conveying device, the lime is conveyed to the suspension calcining cooling device by the second lifting conveying device for calcining and cooling, the air is pumped into the suspension calcining cooling device by the first fan, the pulverized coal supply device and the fuel gas supply device supply the suspension calcining cooling device, the multistage suspension calcining and multistage cooling of the lime are realized, the calcining quality and the cooling effect of the lime are greatly improved, the waste gas generated by the suspension calcining cooling device is pumped into the powder filtering and collecting device by the second fan, meanwhile, a third fan pumps powder generated in the limestone powder preparation device into the powder filtering and collecting device, waste gas treated by the powder filtering and collecting device enters the first waste gas treatment device, the first waste gas treatment device pumps the waste gas treated in sequence into the waste gas treatment device through the fourth fan, a filter element, an activated carbon plate and an adsorption bag in the second waste gas treatment device perform secondary treatment on the waste gas, and finally the fully-treated waste gas is supplied to the primary drying treatment device.
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| CN111777341A (en) * | 2020-07-03 | 2020-10-16 | 福建省气柜设备安装有限公司 | Limestone suspension calcining equipment |
| CN112407006A (en) * | 2020-11-26 | 2021-02-26 | 顾国凤 | Broken stone transfer equipment with categorised collection is used in mine construction |
| CN113769871A (en) * | 2021-09-15 | 2021-12-10 | 林高兴 | Active lime calcining system |
| CN113860345A (en) * | 2021-10-08 | 2021-12-31 | 浙江钙科机械设备有限公司 | Automatic control system for calcium oxide classification suspension calcination process |
| CN115093140A (en) * | 2022-07-06 | 2022-09-23 | 安徽理工大学环境友好材料与职业健康研究院(芜湖) | Preparation facilities of modified low inflation industrial waste residue base excitation material |
| CN115818988A (en) * | 2022-12-12 | 2023-03-21 | 浙江钙科科技股份有限公司 | Fluidized limestone powder suspension calcining equipment |
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