CN112050613A - High-efficiency energy-saving slow self-descending vertical drying kiln - Google Patents
High-efficiency energy-saving slow self-descending vertical drying kiln Download PDFInfo
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- CN112050613A CN112050613A CN202010936597.6A CN202010936597A CN112050613A CN 112050613 A CN112050613 A CN 112050613A CN 202010936597 A CN202010936597 A CN 202010936597A CN 112050613 A CN112050613 A CN 112050613A
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- kiln
- outer side
- kiln body
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- hopper
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/08—Parts thereof
- F26B25/12—Walls or sides; Doors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to the technical field of drying kilns, in particular to a high-efficiency energy-saving slow self-descending vertical drying kiln which comprises a main kiln body, a feeding bin, a discharging bin, an upper distributing hopper, a lower distributing hopper, a slow descending assembly, a choke ring plate, an air inlet pipeline and an air outlet pipeline. The material distributor has the characteristics of reasonable and compact structure and convenient use, leads materials to be uniformly guided into an annular cavity between the inner cone assembly and the outer cone assembly through the upper material distributing hopper, leads the materials to slowly creep and descend along the inner side of the outer cone cylinder and the outer side of the inner cone cylinder under the action of self gravity, and has high efficiency, good drying effect and low material breakage rate.
Description
Technical Field
The invention relates to the technical field of drying kilns, in particular to a high-efficiency energy-saving slow self-descending vertical drying kiln.
Background
Present drying kiln on the market is mostly horizontal rotatory drying kiln, horizontal drying kiln uses 4 big tow boat to hold up the drying kiln barrel, it is rotatory to drive speed reducer driving roller by the motor, raise coke and impel forward through helical blade, thereby reach the stoving mesh, this type of drying kiln wastes electricity, stoving coke breakage rate is high, drying drum and coke contact are serious to cylinder helical blade and section of thick bamboo wall wearing and tearing, the riding wheel wearing and tearing are serious, the fault rate is high, cost of maintenance is high, 1 year of average use is carried out and is repaired once, use 2 years overhaul once, expense is higher during the restoration, influence the normal production of drying kiln system and cause the wasting of resources during the restoration, this problem is the important bottleneck that restricts enterprise's drying equipment long period high-efficient operation and guarantor personnel safety. In addition, when the temperature in the drying kiln is too high, the temperature can not be effectively reduced.
Disclosure of Invention
The invention provides an efficient energy-saving slow self-descending vertical drying kiln, overcomes the defects of the prior art, can effectively solve the problems of high coke breakage rate, multiple equipment faults and incapability of long-period continuous operation of the conventional drying kiln, and can further solve the problem of incapability of reducing the temperature due to overhigh temperature in the drying kiln.
The technical scheme of the invention is realized by the following measures: a high-efficiency energy-saving slow self-descending vertical drying kiln comprises a main kiln body, a feeding bin, a discharging bin, an upper distributing hopper, a lower distributing hopper, a slow descending assembly, a gas barrier ring plate, a gas inlet pipeline and a gas outlet pipeline, wherein an upper through drying cavity is arranged in the main kiln body, the upper end of the main kiln body is fixedly provided with the feeding bin, the upper distributing hopper positioned in the feeding bin is fixedly arranged at the upper end of the main kiln body, the lower distributing hopper is fixedly arranged at the inner side of the upper end of the main kiln body, the upper distributing hopper and the lower distributing hopper are both in a shape of a circular truncated cone with a downward opening and a small upper part and a large lower part, the lower end of the main kiln body; a slow descending assembly capable of enabling materials to slowly descend is fixedly installed in the main kiln body corresponding to the position between the lower end of the upper distributing hopper and the lower end of the lower distributing hopper, two gas barrier ring plates are arranged between the inner side of the middle of the main kiln body and the slow descending assembly at intervals up and down, at least one upper gas inlet capable of being communicated with the drying cavity is arranged on the outer side of the main kiln body corresponding to the position above the gas barrier ring plates at intervals up and down, at least one lower gas inlet capable of being communicated with the drying cavity is arranged on the outer side of the main kiln body corresponding to the position below the gas barrier ring plates at intervals up and down, and gas inlet pipelines are fixedly installed on the outer sides of the main; at least one air outlet which can be communicated with the drying cavity is arranged on the outer side of the main kiln body corresponding to the position between the two air blocking ring plates at intervals from top to bottom, and an air outlet pipeline is fixedly arranged on the outer side of the main kiln body corresponding to each air outlet.
The following is further optimization or/and improvement of the technical scheme of the invention:
the slow descending component can comprise an inner cone component, an outer cone component and fixing rib plates, the outer cone component is arranged in the main kiln body, the inner cone component is sleeved on the inner side of the outer cone component, and at least two fixing rib plates are circumferentially distributed between the inner side of the outer cone component and the outer side of the inner cone component; the outer cone component comprises at least two outer cone cylinders which are distributed at intervals from top to bottom, the outer cone cylinders are in a circular truncated cone shape which is through from top to bottom and is big in top to bottom, the inner cone component comprises at least two inner cone cylinders which are distributed at intervals from top to bottom, the inner cone cylinders are in a circular truncated cone shape which is through from top to bottom and is big in top to bottom, and the inner cone cylinders are arranged in the outer cone cylinders corresponding to the positions of the outer cone cylinders.
The discharging bin can comprise a hopper body, a cross-shaped partition plate and a gate valve, the hopper body is in a circular truncated cone shape with a large top and a small bottom, a discharging cavity which is through from top to bottom is arranged in the hopper body, the cross-shaped partition plate which can separate the discharging cavity into four distributing cavities is fixedly arranged in the hopper body, and the gate valve which can adjust the opening size of the lower end of each distributing cavity is arranged on the outer side of the hopper body corresponding to the position of each distributing cavity.
The kiln also comprises a corrugated compensator and an air distribution valve, wherein an upper air inlet is arranged on the outer side of the main kiln body corresponding to the position above the air-blocking ring plate, two lower air inlets are arranged on the outer side of the main kiln body corresponding to the position below the air-blocking ring plate at intervals from top to bottom, and three air outlets which can be communicated with the drying cavity are arranged on the outer side of the main kiln body corresponding to the position between the two air-blocking ring plates at intervals from top to bottom; the air inlet pipeline is fixedly provided with a corrugated compensator and an air distribution valve.
The above-mentioned still can include charge level indicator and thermoscope, is equipped with the charge level indicator that can detect the stoving intracavity material height in the feeding storehouse, is equipped with the thermoscope that can detect discharge gate ejection of compact temperature on going out the feed bin.
The main kiln body can comprise at least two kiln cylinders which are sequentially and fixedly arranged from top to bottom.
The kiln barrel feeding device can further comprise a working platform, protective guards and working ladders, wherein the working platforms are fixedly arranged on the outer sides of the upper ends of the feeding bin, the discharging bin and the kiln barrel, the protective guards with the upper ends positioned above the working platforms are fixedly arranged on the outer sides of the working platforms, and the working ladders are arranged between every two adjacent working platforms.
The kiln comprises a kiln cylinder and is characterized by also comprising a heat preservation layer, wherein the heat preservation layer is arranged on the outer side of the kiln cylinder and comprises heat preservation cotton and corrugated plates which are sequentially arranged from inside to outside, the heat preservation cotton is fixedly installed on the outer side of the kiln cylinder, and the corrugated plates which are fixedly installed on the outer side of the kiln cylinder are arranged on the outer side of the heat preservation cotton.
The device also comprises thermocouples, wherein at least one thermocouple with the inner end positioned in the slow descending component is arranged on the outer side of the kiln barrel, and at least one thermocouple with the inner end positioned in the discharge bin is arranged on the outer side of the discharge bin.
The kiln cylinder upper end and the feeding bin lower end which are located at the uppermost position are fixedly mounted together through flange connection, the two adjacent kiln cylinders are fixedly mounted together through flange connection, and the kiln cylinder lower end and the discharging bin upper end which are located at the lowermost position are fixedly mounted together through flange connection.
The material distributing device is reasonable and compact in structure and convenient to use, and materials are uniformly guided into an annular cavity between the inner cone assembly and the outer cone assembly through the upper distributing hopper; the materials are uniformly guided into a discharging bin through a lower distributing hopper; through setting up the subassembly that slowly falls, make the material creep down slowly along outer cone inboard and interior cone outside under the action of gravity of self, have high-efficient, dry effectual and the material breakage rate low characteristics of drying.
Drawings
Fig. 1 is a schematic front view of the preferred embodiment of the present invention.
Fig. 2 is a front sectional structural view of fig. 1 in a use state.
FIG. 3 is a schematic sectional view of the kiln cylinder shown in FIG. 1.
Fig. 4 is a schematic top view of fig. 3.
Fig. 5 is a schematic top view of the discharge bin of fig. 1.
Fig. 6 is a schematic structural view of the fixing rib plate in fig. 1.
The codes in the figures are respectively: the device comprises a kiln cylinder 1, a feeding bin 2, a hopper body 3, an upper distributing hopper 4, a lower distributing hopper 5, an air blocking ring plate 6, a fixing rib plate 7, an outer conical cylinder 8, an inner conical cylinder 9, a gate valve 10, an air inlet pipeline 11, an air outlet pipeline 12, a working platform 13, a protective guard 14, a working ladder 15, a cross-shaped partition plate 16, a fluidized bed furnace 17 and a dust remover 18.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention is further described with reference to the following examples and figures:
as shown in attached figures 1, 2, 3, 4, 5 and 6, the high-efficiency energy-saving slow self-descending vertical drying kiln comprises a main kiln body, a feeding bin 2, a discharging bin, an upper distributing hopper 4, a lower distributing hopper 5, a slow descending assembly, a gas blocking ring plate 6, a gas inlet pipeline 11 and a gas outlet pipeline 12, wherein an up-and-down through drying cavity is arranged in the main kiln body, the feeding bin 2 is fixedly arranged at the upper end of the main kiln body, the upper distributing hopper 4 positioned in the feeding bin 2 is fixedly arranged at the upper end of the main kiln body, the lower distributing hopper 5 is fixedly arranged at the inner side of the upper end of the main kiln body, the upper distributing hopper 4 and the lower hopper are both in a shape of a circular truncated cone with a downward opening, a small upper part and a large lower part, the lower; a slow descending assembly capable of enabling materials to slowly descend is fixedly installed in the main kiln body corresponding to the position between the lower end of the upper distributing hopper 4 and the lower end of the lower distributing hopper 5, two air blocking ring plates 6 are arranged between the inner side of the middle of the main kiln body and the slow descending assembly at intervals up and down, at least one upper air inlet capable of being communicated with the drying cavity is arranged on the outer side of the main kiln body corresponding to the position above the air blocking ring plates 6 at intervals up and down, at least one lower air inlet capable of being communicated with the drying cavity is arranged on the outer side of the main kiln body corresponding to the position below the air blocking ring plates 6 at intervals up and down, and air inlet pipelines 11 are fixedly installed on the outer sides of the main; at least one air outlet which can be communicated with the drying cavity is arranged on the outer side of the main kiln body corresponding to the position between the two air blocking ring plates 6 at intervals from top to bottom, and an air outlet pipeline 12 is fixedly arranged on the outer side of the main kiln body corresponding to each air outlet. During the use process, the invention is arranged on the prior known civil foundation embedded part, the upper air inlet and the lower air inlet are respectively fixedly communicated with the prior known heat supply pipeline of the fluidized bed furnace 17 through the air inlet pipeline 11, the air outlet is fixedly communicated with the prior known dust remover 18 through the air outlet pipeline 12, so that negative pressure is formed at the air outlet, and hot gas (the hot gas source can be heat generated by purifying and dedusting incineration solid waste) in the fluidized bed furnace 17 is supplied into the invention and then is discharged from the air outlet; the method comprises the following steps of conveying materials to be dried, such as wet coke, into a feeding bin 2 by using a known conveying belt or a known lifting machine, treating the wet coke by using a known iron remover, and then conveying the treated wet coke into the feeding bin 2, wherein the iron remover can be an electromagnetic belt rotary iron remover, and a known vibrating feeder and a known conveying belt can be arranged below a discharging bin and are used for conveying the dried coke to a calcium carbide raw material workshop to be used as a calcium carbide production raw material; materials are fed from the upper part of the feeding bin 2, the materials are uniformly guided into the slow descending component through the upper distributing hopper 4, hot air passes through the slow descending component, and therefore the materials which slowly creep downwards in the slow descending component are dried, and the dried materials downwards move into the discharging bin; through setting up two upper and lower interval distribution's choke ring board 6, the steam of being convenient for is discharged from the gas outlet. According to the demand, still including supporting the cross muscle, main kiln body upper end inboard and the inboard equal fixed mounting of lower extreme have the supporting cross muscle, go up cloth 4 lower extremes of fighting and 5 lower extremes of cloth fill respectively with the supporting cross muscle upside fixed mounting of corresponding position together.
The high-efficiency energy-saving slow self-descending vertical drying kiln can be further optimized or/and improved according to actual needs:
as shown in the attached figures 1, 2, 3, 4, 5 and 6, the slow descending component can comprise an inner cone component, an outer cone component and fixing rib plates 7, the outer cone component is arranged in the main kiln body, the inner cone component is sleeved on the inner side of the outer cone component, and at least two fixing rib plates 7 are circumferentially distributed between the inner side of the outer cone component and the outer side of the inner cone component; outer cone subassembly includes two at least outer cone 8 of interval distribution from top to bottom, and outer cone 8 is the round platform shape that link up from top to bottom and big-end-up, and interior cone subassembly includes two at least interior cone 9 of interval distribution from top to bottom, and interior cone 9 is link up from top to bottom and big-end-up's round platform shape, all is equipped with interior cone 9 in the outer cone 8 that corresponds every outer cone 8 position. In the using process, the inner cone cylinder 9 and the outer cone cylinder 8 are conveniently and fixedly installed together by arranging the fixing rib plates 7; by arranging the inner cone assembly and the outer cone assembly, the materials can slowly creep downwards along the inner side of the outer cone cylinder 8 and the outer side of the inner cone cylinder 9 under the action of the gravity of the materials; through the outer cone 8 and the inner cone 9 of upper and lower interval distribution, the annular cavity of steam between interior cone assembly and the outer cone assembly of being convenient for passes to the slow wriggling descending material in the annular cavity of stoving. According to requirements, the slow descending assembly further comprises fixing ribs, and the outer ends of the fixing rib plates 7 are fixedly installed with corresponding positions on the inner side of the main kiln body through the fixing ribs; the air-blocking ring plate 6 is in a truncated cone shape with a large top and a small bottom, the upper end of the air-blocking ring plate 6 is fixedly installed with the corresponding position of the inner side of the main kiln body, and the lower end of the air-blocking ring plate 6 is fixedly installed with the upper end of the outer cone 8 at the corresponding position.
As shown in the attached drawings 1, 2, 3, 4, 5 and 6, the discharging bin can comprise a hopper body 3, a cross partition plate 16 and a gate valve 10, the hopper body 3 is in a circular truncated cone shape with a large top and a small bottom, a discharging cavity which is through from top to bottom and large bottom is arranged in the hopper body 3, the cross partition plate 16 which can separate the discharging cavity into four material distributing cavities is fixedly arranged in the hopper body 3, and the gate valve 10 which can adjust the opening size of the lower end of each material distributing cavity is arranged on the outer side of the hopper body 3 corresponding to each material distributing cavity. During the use process, the blanking speed of the invention can be controlled through the arrangement. According to the demand, still include the nitrogen gas pipeline, go out the feed bin outside and be equipped with the nitrogen gas pipeline that can communicate with it in, through setting up phi 50mm nitrogen gas pipeline, can fill nitrogen protection when the material high temperature.
As shown in attached figures 1, 2, 3, 4, 5 and 6, the kiln further comprises a corrugated compensator and an air distribution valve, wherein an upper air inlet is arranged on the outer side of the main kiln body corresponding to the position above the air-blocking ring plate 6, two lower air inlets are arranged on the outer side of the main kiln body corresponding to the position below the air-blocking ring plate 6 at intervals up and down, and three air outlets capable of being communicated with the drying cavity are arranged on the outer side of the main kiln body corresponding to the position between the two air-blocking ring plates 6 at intervals up and down; the air inlet pipeline 11 is fixedly provided with a corrugated compensator, and the air distribution valve is fixedly arranged on the air inlet pipeline 11. In the using process, the arrangement enhances the circulation of the internal heat of the dryer, so that the dryer has a better drying effect.
As shown in attached figures 1, 2, 3, 4, 5 and 6, the device also comprises a material level meter and a temperature measuring instrument, wherein the material level meter capable of detecting the height of the material in the drying cavity is arranged in the feeding bin 2, and the temperature measuring instrument capable of detecting the discharging temperature of the discharging hole is arranged on the discharging bin. In the using process, the material level meter is arranged to detect the height of the material in the main kiln body, and the temperature measuring instrument is arranged to detect the temperature of the material in the storage bin, so that the invention is more stable and reliable.
As shown in fig. 1, 2, 3, 4, 5, and 6, the main kiln body may include at least two kiln cylinders 1 fixedly installed in sequence from top to bottom. In the use process, the invention is convenient to process by the arrangement; in addition, in order to meet the drying amount of the materials in the kiln and ensure the drying efficiency of the kiln, the main kiln body can comprise seven kiln cylinders 1 which are fixedly arranged together from top to bottom in sequence.
As shown in fig. 1, 2, 3, 4, 5 and 6, the kiln can further comprise a working platform 13, a protective guard 14 and a working ladder 15, wherein the working platform 13 is fixedly installed on the outer sides of the upper ends of the feeding bin 2, the discharging bin and the kiln barrel 1, the protective guard 14 with the upper end positioned above the working platform 13 is fixedly installed on the outer side of the working platform 13, and the working ladder 15 is arranged between every two adjacent working platforms 13. In the using process, the working platform 13, the protective guard 14 and the working ladder 15 are arranged, so that the working personnel can conveniently overhaul the invention.
As shown in the attached figures 1, 2, 3, 4, 5 and 6, the kiln comprises a heat preservation layer, wherein the heat preservation layer is arranged on the outer side of the kiln cylinder 1 and comprises heat preservation cotton and corrugated plates which are sequentially arranged from inside to outside, the heat preservation cotton is fixedly arranged on the outer side of the kiln cylinder 1, and the corrugated plates which are fixedly arranged on the outer side of the kiln cylinder 1 are arranged on the outer side of the heat preservation cotton. In the use process, through the arrangement, the main kiln body has better heat preservation performance. According to the requirement, the heat-preservation cotton is the prior known technology, can be high-temperature-resistant aluminum silicate rock wool with the thickness of 100mm, and can be fixed on the outer side of the kiln cylinder 1 by using a No. 16 iron wire; the heat preservation cotton is wrapped by a corrugated plate, the corrugated plate is fixedly installed together with the outer side of the kiln cylinder 1 by rivets, and the distance between the rivets at the butt joint of the corrugated plate is smaller than 100 mm.
As shown in attached figures 1, 2, 3, 4, 5 and 6, the device can also comprise thermocouples, at least one thermocouple with the inner end positioned in the slow descending component is arranged on the outer side of the kiln barrel 1, and at least one thermocouple with the inner end positioned in the discharge bin is arranged on the outer side of the discharge bin. In the use process, the temperature in each kiln barrel 1 and the discharging bin can be detected through the arrangement. According to requirements, two layers of thermocouples are arranged on the outer side of each kiln barrel 1 at intervals from top to bottom, the interval distance between the upper layer and the lower layer can be 1500mm, 8 thermocouples are arranged on each layer, and the inner end of each thermocouple arranged on the outer side of each kiln barrel 1 is positioned between the outer cone barrel 8 and the inner cone barrel 9 at the corresponding position; in addition, 2 thermocouples are arranged on the outer side of the hopper body 3 corresponding to each material distribution cavity.
As shown in the attached figures 1, 2, 3, 4, 5 and 6, the upper end of the kiln cylinder 1 at the uppermost position and the lower end of the feeding bin 2 can be fixedly installed together through flange connection, two adjacent kiln cylinders 1 are fixedly installed together through flange connection, and the lower end of the kiln cylinder 1 at the lowermost position and the upper end of the discharging bin are fixedly installed together through flange connection. In the use process, the feeding bin 2 and the kiln barrel 1 are convenient to fixedly install through the arrangement, the kiln barrel 1 and the kiln barrel 1 as well as the kiln barrel 1 and the discharging bin. According to the demand, use high temperature resistant rock wool rope to seal between two fixed mounting's flange together.
The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and unnecessary technical features can be increased or decreased according to actual needs to meet the requirements of different situations.
When the thermocouple detects that the temperature in the main kiln body is overhigh, the invention can realize temperature reduction by the following modes:
(1) the blanking speed of the discharging bin is accelerated by controlling the gate valve 10;
(2) the air inlet speed of the air inlet pipeline 11 is reduced by controlling the air distribution valve;
(3) the blanking speed of the discharging bin is increased by increasing the vibration frequency of the vibration feeder;
(4) the cycle speed of the hot gas is slowed by controlling the dust separator 18.
Claims (10)
1. A high-efficiency energy-saving slow self-descending vertical drying kiln is characterized by comprising a main kiln body, a feeding bin, a discharging bin, an upper material distribution hopper, a lower material distribution hopper, a slow descending assembly, a gas barrier ring plate, a gas inlet pipeline and a gas outlet pipeline, wherein the main kiln body is internally provided with a through drying cavity, the upper end of the main kiln body is fixedly provided with the feeding bin, the upper end of the main kiln body is fixedly provided with the upper material distribution hopper positioned in the feeding bin, the inner side of the upper end of the main kiln body is fixedly provided with the lower material distribution hopper, the upper material distribution hopper and the lower material hopper are both in a shape of a circular truncated cone with a downward opening and a small upper part and a large lower part, the lower end of; a slow descending assembly capable of enabling materials to slowly descend is fixedly installed in the main kiln body corresponding to the position between the lower end of the upper distributing hopper and the lower end of the lower distributing hopper, two gas barrier ring plates are arranged between the inner side of the middle of the main kiln body and the slow descending assembly at intervals up and down, at least one upper gas inlet capable of being communicated with the drying cavity is arranged on the outer side of the main kiln body corresponding to the position above the gas barrier ring plates at intervals up and down, at least one lower gas inlet capable of being communicated with the drying cavity is arranged on the outer side of the main kiln body corresponding to the position below the gas barrier ring plates at intervals up and down, and gas inlet pipelines are fixedly installed on the outer sides of the main; at least one air outlet which can be communicated with the drying cavity is arranged on the outer side of the main kiln body corresponding to the position between the two air blocking ring plates at intervals from top to bottom, and an air outlet pipeline is fixedly arranged on the outer side of the main kiln body corresponding to each air outlet.
2. The high-efficiency energy-saving slow self-descending vertical drying kiln according to claim 1, characterized in that the slow descending component comprises an inner cone component, an outer cone component and fixing rib plates, the main kiln body is internally provided with the outer cone component, the inner side of the outer cone component is sleeved with the inner cone component, and at least two fixing rib plates are circumferentially distributed between the inner side of the outer cone component and the outer side of the inner cone component; the outer cone component comprises at least two outer cone cylinders which are distributed at intervals from top to bottom, the outer cone cylinders are in a circular truncated cone shape which is through from top to bottom and is big in top to bottom, the inner cone component comprises at least two inner cone cylinders which are distributed at intervals from top to bottom, the inner cone cylinders are in a circular truncated cone shape which is through from top to bottom and is big in top to bottom, and the inner cone cylinders are arranged in the outer cone cylinders corresponding to the positions of the outer cone cylinders.
3. The high-efficiency energy-saving slow self-descending vertical drying kiln according to claim 1 or 2, wherein the discharging bin comprises a hopper body, a cross partition plate and a gate valve, the hopper body is in a circular truncated cone shape with a large upper part and a small lower part, a feeding cavity with a large upper part and a small lower part and a through upper part and a through lower part are arranged in the hopper body, the cross partition plate capable of dividing the feeding cavity into four distributing cavities is fixedly arranged in the hopper body, and the gate valve capable of adjusting the size of the opening at the lower end of each distributing cavity is arranged on the outer side of the hopper body corresponding to the position of each distributing cavity.
4. The high-efficiency energy-saving slow self-descending vertical drying kiln as claimed in claim 1 or 2, further comprising a corrugated compensator and a gas distribution valve, wherein an upper gas inlet is arranged on the outer side of the main kiln body corresponding to the position above the gas barrier ring plate, two lower gas inlets are arranged on the outer side of the main kiln body corresponding to the position below the gas barrier ring plate at intervals from top to bottom, and three gas outlets capable of being communicated with the drying cavity are arranged on the outer side of the main kiln body corresponding to the position between the two gas barrier ring plates at intervals from top to bottom; the air inlet pipeline is fixedly provided with a corrugated compensator and an air distribution valve.
5. The high-efficiency energy-saving slow self-descending vertical drying kiln as claimed in claim 3, further comprising a corrugated compensator and a gas distribution valve, wherein an upper gas inlet is arranged on the outer side of the main kiln body corresponding to the position above the gas barrier ring plate, two lower gas inlets are arranged on the outer side of the main kiln body corresponding to the position below the gas barrier ring plate at intervals from top to bottom, and three gas outlets capable of being communicated with the drying cavity are arranged on the outer side of the main kiln body corresponding to the position between the two gas barrier ring plates at intervals from top to bottom; the air inlet pipeline is fixedly provided with a corrugated compensator and an air distribution valve.
6. The high-efficiency energy-saving slow self-descending vertical drying kiln according to claim 1, 2 or 5, further comprising a material level meter and a temperature measuring instrument, wherein the material level meter capable of detecting the height of the material in the drying cavity is arranged in the feeding bin, and the temperature measuring instrument capable of detecting the discharging temperature of the discharging port is arranged on the discharging bin.
7. The high-efficiency energy-saving slow self-descending vertical drying kiln according to claim 4, further comprising a material level meter and a temperature measuring instrument, wherein the material level meter capable of detecting the height of the material in the drying cavity is arranged in the feeding bin, and the temperature measuring instrument capable of detecting the discharging temperature of the discharging port is arranged on the discharging bin.
8. The high-efficiency energy-saving slow self-descending vertical drying kiln as claimed in claim 1, 2, 5 or 7, characterized in that the main kiln body comprises at least two kiln cylinders which are fixedly arranged together from top to bottom in sequence.
9. The high-efficiency energy-saving slow self-descending vertical drying kiln as claimed in claim 3, 4 or 6, characterized in that the main kiln body comprises at least two kiln cylinders which are fixedly arranged together from top to bottom in sequence.
10. The high-efficiency energy-saving slow self-descending vertical drying kiln is characterized by further comprising working platforms, guard rails and working ladders, wherein the working platforms are fixedly arranged on the outer sides of the upper ends of the feeding bin, the discharging bin and the kiln barrel, the guard rails with the upper ends positioned above the working platforms are fixedly arranged on the outer sides of the working platforms, and the working ladders are arranged between every two adjacent working platforms; or/and the kiln comprises a heat-insulating layer, wherein the heat-insulating layer is arranged on the outer side of the kiln cylinder and comprises heat-insulating cotton and corrugated plates which are sequentially arranged from inside to outside, the heat-insulating cotton is fixedly arranged on the outer side of the kiln cylinder, and the corrugated plates which are fixedly arranged with the outer side of the kiln cylinder are arranged on the outer side of the heat-insulating cotton; the outer side of the kiln barrel is provided with at least one thermocouple, the inner end of the thermocouple is positioned in the slow descending assembly, and the outer side of the discharge bin is provided with at least one thermocouple, the inner end of the thermocouple is positioned in the discharge bin; or/and the upper end of the kiln barrel positioned at the uppermost position is fixedly connected with the lower end of the feeding bin through a flange, two adjacent kiln barrels are fixedly connected together through a flange, and the lower end of the kiln barrel positioned at the lowermost position is fixedly connected with the upper end of the discharging bin through a flange.
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| CN202010936597.6A CN112050613A (en) | 2020-09-08 | 2020-09-08 | High-efficiency energy-saving slow self-descending vertical drying kiln |
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| CN202010936597.6A CN112050613A (en) | 2020-09-08 | 2020-09-08 | High-efficiency energy-saving slow self-descending vertical drying kiln |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112944872A (en) * | 2021-03-31 | 2021-06-11 | 安徽辰宇机械科技有限公司 | Energy-conserving grain drier circulates |
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