CN2562152Y

CN2562152Y - Lime kiln

Info

Publication number: CN2562152Y
Application number: CN02233010U
Authority: CN
Inventors: 潘志成
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-19
Filing date: 2002-04-19
Publication date: 2003-07-23
Anticipated expiration: 2012-04-19

Abstract

The utility model discloses a lime kiln, wherein the feeding device includes a stone storage bin, a fuel storage bin, a belt conveyor, a movable tank, a feeding hopper, and a crane; the feeding device includes a drum with upper and lower covers shaped material storage tank and a pulley frame, the lower half of the material storage tank is placed in the kiln body; the material distribution device includes a transmission part and a rotating part, the transmission part includes a star-shaped cycloidal pinwheel deceleration motor and a deceleration device, and the rotating part includes a roller device , the roller device is connected with a cloth guide plate; the ash unloading device includes a roller device, a deceleration motor and a round deceleration device, an ash unloader, an annular ash tray and an ash outlet; the blast device includes a fan, a hot air pipe, a hot air Collecting pipe, cold air pipe and rotating air cap. The rotating air cap is arranged on the top of the ash unloader and connected with the outlet on the top of the kiln foundation through the cold air pipe. The utility model has large ash output, high carbon dioxide content in kiln gas, high thermal efficiency, low fuel consumption, no raw burning, over-burning, no environmental pollution, and low equipment cost.

Description

The limestone kiln

Technical field

The utility model relates to a kind of vertical mechanical fossil ash furnace of producing calcium oxide and carbonic acid gas.

Background technology

At present, domestic known vertical mechanical fossil ash furnace comprises feeding device, ash-discharging device, above-mentioned feeding device adopts surface-based windlass traction monobucket car or multibuchet ground rail car to kiln top opening for feed haul, this feeding device complex structure, device fabrication consumptive material are big, and one time feeding quantity is limited, and the reinforced time is long, influence kiln temperature and carbon dioxide content, and operation labour intensity is big, need be artificial many, and environmental pollution is big.Above-mentioned ash-discharging device, the reciprocating type gangboard of the employing that has, the employing ball arc track supporting disk dust unloadnig apparatus that has directly unloads outside the kiln discharge, the employing vibrations dust unloadnig apparatus that has, it is inhomogeneous that ash is unloaded in this this structure existence, and it is poor to seal, mechanical fault is many, the shortcoming that the atmospheric pollution of ash discharge operating surface is big.Known limestone kiln, the no distributor that has, what have is provided with kiln inner rotary distributor, it is inhomogeneous that no distributor then causes in the kiln material to mix, and influences normal calcination, easily produce inclined to one side kiln, give birth to burn, burn-off phenomenon; There is charging sealing difficulty in kiln inner rotary distributor, influences the stable and air pollution problems inherent of kiln gas carbonic acid gas.Known limestone kiln does not have gas blower or pass through fixedly blast cap air intake at the bottom of kiln, causes the difficulty of ventilating like this, and wind is skewness in kiln, and heat-energy losses is big, has strengthened the consumption of fuel.In sum, known limestone kiln is produced the ash amount and produces the kiln gas carbon dioxide content low and unstable, give birth to burning, burning, thermo-efficiency is low, and fuel exhaustion is big, operational difficulty, environmental pollution is serious, mechanical fault is many, and shortcomings such as equipment manufacturing cost and maintenance cost height have seriously restricted the raising of relevant auxiliary products production level.

Summary of the invention

The purpose of this utility model provides a kind of product ash and measures greatly, produces kiln gas carbon dioxide content height, the thermo-efficiency height, and fuel consumption is little, does not have the burning of giving birth to, burning, non-environmental-pollution, the limestone kiln that equipment cost is low.

For achieving the above object, the utility model is taked following design: a kind of limestone kiln, comprise kiln basis, drum shape kiln body, kiln body annular service platform, the stair of attended operation platform, feeding device, feeding unit, ash-discharging device, distribution device, air-blast device, it is characterized in that with hollow lumen:

The kiln body, the top has a platform, the kiln body is divided into preheating section, calcining section and cooling section, kiln body top is provided with the kiln gas vent pipe, has kiln lining in the kiln body, kiln lining is that cylinder is barrel-shaped at preheating section and calcining section, at cooling section is that inverted cone is barrel-shaped, and the internal diameter of kiln lining on cooling section is greater than the internal diameter in preheating section and calcining section, the kiln body is provided with six hot blasts at cooling section with calcining section junction and collects mouth, preheating section kiln lining internal surface is equipped with protecting sheet, has a Transmission Room between kiln basis and the kiln body, and the kiln basis has blast inlet and air outlet;

Feeding device, comprise that outlet is separately installed with the building stones storage bin and the fuel storage bin of adjustable shocking feeder, building stones storage bin and fuel storage bin ingress have grid, be positioned at the conveyor and the loose slot of material feeder below, be positioned at loose slot below and place drum shape elevating hopper on the electronic scale with taper false bottom, be fixed on the horizontal rail of kiln body top platform, also use the connected no guard shield vertical lifting track of support near kiln body annular service platform, have the crane of vertical lifting and level front and back drag function, elevating hopper is connected with the wireline of crane;

Feeding unit, it comprises and being fixed on having of kiln body top platform center, the drum shape storage vat of lower cover and a pulley yoke, the storage vat Lower Half places in the kiln body and by flange fixedlys connected with the kiln roof panel, the storage vat sidewall is fixed with a supporting base, the storage vat loam cake is connected with a cylinder, lower cover is taper and is connected with a wireline, wireline is walked around one and is fixed on the fixed pulley on the storage vat wall and passes the weight that storage vat sidewall and is suspended on the pulley yoke and be connected, be provided with a travelling block in the middle of the wireline, weight is walked around two fixed pulleys by a wireline and is connected with the piston of a cylinder;

Distribution device, comprise driving part and rotating part, driving part comprises the primary cylinder gear deceleration device that is fixed on the star cycloidal-pin wheel reducing motor on the kiln body top platform and matches with it, the output shaft of deceleration device is inserted in the kiln body by tightness system, rotating part comprises that one is fixed on the roller devices on the supporting base, be connected with a last rail chair that has a gear ring on the roller devices, the small cylinder gear of deceleration device end is meshed with gear ring, and last rail chair is connected with the cloth guide plate by suspension bracket;

Ash-discharging device, be arranged at exit under the kiln body cooling section, it comprises the supporting base that is fixed on the basis, one is fixed on the roller devices on the supporting base, the one primary cylinder gear deceleration device that is installed in the star cycloidal-pin wheel reducing motor on the kiln base rack and matches with it, one is positioned at the discharge apparatus that kiln body bottom has spiral shell taper rotation step, be located at the annular holder ash-pan and the ash shoot of discharge apparatus below, have between holder ash-pan and the ash shoot and radially exhale end play, holder ash-pan top is provided with ash-stopping ring, ash shoot is connected with the star ash hoist that rotor has four not connected loading spaces, ash hoist is installed on the external kiln of the kiln basis, adopt totally-enclosed the connection between ash shoot and kiln body and the ash hoist, ash hoist is connected with a reducing motor, the stile line of discharge apparatus rotation step in the plane be projected as involute urve shape, the platform of step is an integral planar band that from top to bottom spirals around the center from inside to outside, is fixed with a dull and stereotyped scraper that is positioned at holder ash-pan top on the ash shoot;

Air-blast device, comprise blower fan, heating duct, hot blast collection tube, cold-air duct and rotation blast cap, blower fan is located in the hollow lumen on kiln basis, hot blast is collected a mouthful place and is connected with the blower fan import by the hot blast collection tube, the blower fan outlet is connected with kiln body calcining section blast inlet by heating duct, and the rotation blast cap is located at the top of discharge apparatus and is connected with kiln basis top exit by cold-air duct.

The utility model has the advantages that: 1, the feeding device in the utility model, comprise that outlet is equipped with the building stones storage bin and the fuel storage bin of adjustable shocking feeder, building stones storage bin and fuel storage bin ingress have grid so that select materials, guarantee to add the interior building stones of kiln and the lumpiness quality of fuel, further reduce material loading, selected materials manually, improved man efficiency.2, the feeding unit in the utility model, it comprises a drum shape storage vat that has upper and lower cover and a pulley yoke that is fixed on kiln body top platform center, the storage vat Lower Half places in the kiln body and by flange fixedlys connected with the kiln roof panel, the storage vat loam cake is connected with a cylinder, lower cover is taper and is connected with a wireline, storage vat loam cake and lower cover are alternately closed when material loading and charging, have reached the hermetically sealed of kiln top; Solve the kiln that causes owing to charging in the fill process and pushed up unlimited influence temperature, pressure and the kiln gas carbon dioxide content and the pollution problem of smoldering in the kiln body.3, distribution device in the utility model, comprise driving part and rotating part, driving part comprises the primary cylinder gear deceleration device that is fixed on the star cycloidal-pin wheel reducing motor on the kiln body top platform and matches with it, the output shaft of deceleration device is inserted in the kiln body by tightness system, rotating part comprises that one is fixed on the roller devices on the supporting base, be connected with a last rail chair that has a gear ring on the roller devices, the small cylinder gear of deceleration device end is meshed with gear ring, last rail chair is connected with the cloth guide plate by suspension bracket, therefore the equally distributed charge level of having realized material in the kiln is smooth, overcome the contradiction of external placed type revolving top and kiln top sealing, realized the totally-enclosed of kiln top.4, ash-discharging device in the utility model, be arranged at exit under the kiln body cooling section, it comprises the supporting base that is fixed on the basis, one is fixed on the roller devices on the supporting base, the one primary cylinder gear deceleration device that is installed in the star cycloidal-pin wheel reducing motor on the kiln base rack and matches with it, one is positioned at kiln body bottom, and to have a detachable ash of discharge apparatus of spiral shell taper rotation step even, be located at the annular holder ash-pan and the ash shoot of discharge apparatus below, have between holder ash-pan and the ash shoot and radially exhale end play, holder ash-pan top is provided with ash-stopping ring, ash shoot is connected with the star ash hoist that rotor has four not connected loading spaces, ash hoist is installed on the external kiln of the kiln basis, adopt totally-enclosed the connection between ash shoot and kiln body and the ash hoist, ash hoist is connected with a reducing motor, the stile line of discharge apparatus rotation step in the plane be projected as involute urve shape, the platform of step is an integral planar band that from top to bottom spirals around the center from inside to outside, be fixed with one on the ash shoot and be positioned at the dull and stereotyped scraper that holds in the palm the ash-pan top, therefore unloading ash is to carry out under the environment of sealing, pollution-free.5, the air-blast device in the utility model, comprise blower fan, heating duct, hot blast collection tube, cold-air duct and rotation blast cap, blower fan is located in the hollow lumen on kiln basis, hot blast is collected a mouthful place and is connected with the blower fan import by the hot blast collection tube, the blower fan outlet is connected with kiln body calcining section blast inlet by heating duct, and the rotation blast cap is located at the top of discharge apparatus and is connected with kiln basis top exit by cold-air duct.As seen this air-blast device collected cooling section hot blast for calcination section heat supplement, reduced heat-energy losses, form the negative pressure of kiln body bottom Transmission Room and ash output hole, help the control that pollute kiln body bottom, improved the Air quality of operating surface.6, the utility model is owing to carry out the composition optimizes of above-mentioned each side on the whole and the perfect in shape and function design, makes it reach following beneficial effect: A, to produce the ash amount big, produces every cubic metre of useful volume of ash amount, and every day, maximum can reach 1.1 tons; B, product kiln gas gas concentration lwevel height, content can reach 40%; C, fuel consumption are little, 850 kcal/kg Wingdales; D, pollute little, kiln body top smoke-less pollution, the no ashes pollution in kiln body bottom; E, stable operation do not have the burning of giving birth to, burn-off phenomenon; F, maintenance rate are low, long service life; G, labour intensity are low, the man efficiency height; H, floor space are little, and the facility investment of specific productivity is little.

Description of drawings

Fig. 1 is the one-piece construction synoptic diagram in the utility model limestone kiln

Fig. 2 is a feeding device structural representation in the utility model

Fig. 3 A is a feeding unit structural representation in the utility model

Fig. 3 B is the vertical view of Fig. 2 A

Fig. 4 A is a distribution device structural representation in the utility model

Fig. 4 B is the A-A sectional view of Fig. 3 A

Fig. 5 A is a roller devices structural representation in the utility model

Fig. 5 B is the vertical view of Fig. 4 A

Fig. 6 A is an ash-discharging device structural representation in the utility model

Fig. 6 B is the vertical view of Fig. 5 A

Fig. 7 is an air-blast device structural representation in the utility model

Fig. 8 is a microcomputer automatic control instrument monitoring spare installation site synoptic diagram in the utility model

Fig. 9 is an automatic control system composition diagram in the utility model

Figure 10 is automatic charging in the utility model, charging, cloth control schematic diagram

Figure 11 is an instrument Monitoring and Controlling schematic diagram in the utility model

Figure 12 is calcination Automatic Control Theory figure in the utility model

Embodiment

As Fig. 1, Fig. 2, Fig. 3 A, Fig. 3 B, Fig. 4 A, Fig. 4 B, Fig. 5 A, Fig. 5 B, Fig. 6 A, Fig. 6 B, shown in Figure 7, the utility model limestone kiln, comprise the annular service platform 5 of kiln basis 11, drum shape kiln body 7, kiln body with hollow lumen, the stair of attended operation platform, feeding device 1, feeding unit 2, ash-discharging device 8, distribution device 3, air-blast device 10 is characterized in that:

Kiln body 7, the top has a platform 4, kiln body 7 is divided into preheating section, calcining section and cooling section, kiln body top is provided with kiln gas vent pipe 64, has kiln lining 6 in the kiln body 7, kiln lining 6 is that cylinder is barrel-shaped at preheating section and calcining section, at cooling section is that inverted cone is barrel-shaped, and the internal diameter of kiln lining 6 on cooling section is greater than the internal diameter in preheating section and calcining section, mainly be for the ease of collecting hot blast, kiln body 7 is provided with six hot blasts and collects mouthful in a cooling section and a calcining section junction, and kiln lining 6 is equipped with protecting sheet 74 ' at preheating section, have a Transmission Room between kiln basis 11 and the kiln body 7, kiln basis 11 has blast inlet 69 and sidewall air outlet 75 ';

As shown in Figure 2, feeding device 1, comprise that outlet is separately installed with adjustable shocking feeder 18,18 ' building stones storage bin 17 and fuel storage bin 17 ', building stones storage bin 17 and fuel storage bin 17 ' ingress have grid, be positioned at material feeder 18, the conveyor 19 and the loose slot 20 of 18 ' below, be positioned at loose slot 20 belows and place drum shape elevating hopper 21 on the electronic scale 22 with taper false bottom, be fixed on the horizontal rail 13 of kiln body top platform, also use support 14 connected no guard shield vertical lifting tracks 15 near kiln body annular service platform 5, have the crane 12 of vertical lifting and level front and back drag function, elevating hopper 21 is connected with the wireline 16 of crane 12;

As Fig. 3 A, shown in Fig. 3 B, feeding unit 2, it comprises and being fixed on having of kiln body top platform 4 centers, lower cover 24, a drum shape storage vat 31 of 32 and a pulley yoke, storage vat 31 Lower Halves place in the kiln body 7 and by flange fixedlys connected with the kiln roof panel, storage vat 31 sidewalls are fixed with a supporting base 38, storage vat loam cake 24 is connected with a cylinder 23, lower cover 32 is connected for taper and with a wireline 25, wireline 25 is walked around one and is fixed on the fixed pulley on the storage vat wall and passes the weight 28 that storage vat sidewall and is suspended on the pulley yoke and be connected, can also be provided with the wireline protective sleeve in the storage vat, lower cover 32 can closely contact with storage vat 31 end openings under the effect of weight 28, be provided with a travelling block 27 in the middle of the wireline 25, weight 28 is walked around two fixed pulleys 26 by a wireline and is connected with the piston of a cylinder 29;

As Fig. 4 A, shown in Fig. 4 B, distribution device 3 comprises driving part and rotating part, driving part comprises star cycloidal-pin wheel reducing motor 33 that is fixed on the kiln body top platform 4 and the primary cylinder gear deceleration device 34 that matches with it, the output shaft of deceleration device 34 is inserted in the kiln body 7 by tightness system, rotating part comprises that one is fixed on the roller devices 37 on the supporting base 38, be connected with a last rail chair that has a gear ring 36 on the roller devices 37, the small cylinder gear of deceleration device 34 ends is meshed with gear ring 36, and last rail chair is connected with cloth guide plate 40 by suspension bracket 39;

As Fig. 6 A, shown in the 6B, ash-discharging device 8, be arranged at exit under the kiln body cooling section, it comprises the supporting base 60 that is fixed on the basis 11, one is fixed on the roller devices 37 on the supporting base 60, one is installed in star cycloidal-pin wheel reducing motor 47 on the kiln base rack 61 and the primary cylinder gear deceleration device 62 that matches with it, one is positioned at the discharge apparatus 50 that kiln body bottom has spiral shell taper rotation step, be located at the annular holder ash-pan 48 and the ash shoot 53 of discharge apparatus 50 belows, has radial and axial gap between holder ash-pan 48 and the ash shoot 53, holder ash-pan 48 tops are provided with ash-stopping ring 46, fall under the holder ash-pan to prevent lime from holder ash-pan 48, outwards moving, ash shoot 53 is connected with the star ash hoist 9 that rotor has four not connected loading spaces, ash hoist 9 is installed on the external kiln of the kiln basis 11, adopt totally-enclosed the connection between ash shoot 53 and kiln body and the ash hoist 9, ash hoist 9 is connected with a reducing motor 58, the stile line of discharge apparatus rotation step in the plane be projected as involute urve shape, the platform of step is an integral planar band that from top to bottom spirals around the center from inside to outside, when discharge apparatus is done the rotation opposite with the rotation step hand of spiral, position lime is thereon just being fallen on the holder ash-pan 48 with under the heading and outside motion under the effect of rotation step, being fixed with a dull and stereotyped scraper 52 that is positioned at holder ash-pan 48 tops on the ash shoot 53 scrapes into ash shoot 53 will hold in the palm the lime on the ash-pan 48, this ash-discharging device evenly descends the lime constant speed, can avoid because of unloading the inclined to one side burning phenomenon of grey irregular generation;

As shown in Figure 7, air-blast device 10, comprise blower fan 70, heating duct 66, hot blast collection tube 67, cold-air duct 68 and rotation blast cap 49, blower fan 70 is located in the hollow lumen on kiln basis 11, hot blast is collected a mouthful place and is connected with blower fan 70 imports by hot blast collection tube 67, blower fan 70 outlets are connected with kiln body calcining section blast inlet by heating duct 66, and rotation blast cap 49 is located at the top of discharge apparatus 50 and is connected with kiln basis top exit by cold-air duct 68.

During use, fuel is respectively by material feeder 18 in building stones in the building stones storage bin 17 and the fuel storage bin 17 ', 18 ' is added on the conveyor 19, mixing the back adds in the elevating hopper 21 by hopper 20, when adding to specified amount, material stops to feed in raw material, elevating hopper 21 is above vertical track 15 in the traction lower edge of crane 12 and horizontal rail 13 arrival storage vats 31, the loam cake 24 of storage vat 31 is opened under the effect of cylinder 23, crane 12 drops on elevating hopper 21 on the storing bung again, and continue to loosen wireline, the elevating hopper false bottom is then opened downwards under the pressure effect of deadweight and material, compound just falls in the storage vat 31, crane is put back to elevating hopper above the electronic scale 22 afterwards, and loam cake 24 covers storage vat 31 under the effect of cylinder 23, storage vat 31 lower covers 32 can be opened feed by cylinder 29 air inlets, when making cylinder 29 be in exhaust condition, then lower cover 32 is just closed storage vat 31 under weight 28 effects, has guaranteed the stopping property of lower cover 32.Storage vat loam cake 24 and lower cover 32 are alternately closed in material loading and fill process, have solved the problem that kiln gas communicates with ambient atmosphere in the kiln body in the fill process.When reducing motor 33 rotates, drive gear ring 36 rotations by deceleration device 34, thereby 40 rotations of drive guide plate drop down onto compound carries out preheating and calcining in the kiln body, the lime block that is sintered into is by entering in the ash hoist 9 by ash shoot 53 under the ash-discharging device effect, because the rotor of ash hoist 9 has four not connected loading spaces, when rotor rotates, has two loading spaces to be under the sealed state all the time, make ash hoist import and outlet isolated, kiln body bottom air forms negative pressure when having guaranteed ash discharge.In the use, freezing air is entered in the kiln body cooling section by 69 fens two-way of blast inlet, one route cold-air duct 68 directly passes the discharge apparatus center and enters in the kiln body from blast cap 49, one route kiln discharge foundation side wall air outlet comes out to enter in the Transmission Room, gap between discharge apparatus and the kiln body bottom enters in the kiln body on the holder ash-pan again, because ash-discharging device drives the holder ash-pan and blast cap rotates together, make whole air intake realize unobstructed and be evenly distributed, freezing air enters in the kiln body and the hot lime transmission of heat by contact of cooling section, collect mouth by hot blast and enter blower fan by the hot blast collection tube, hot blast is discharged pressurization by blower fan, enter the calcining section by heating duct 66, the kiln gas that calcining produces is external through kiln gas vent pipe 64 discharge kilns.This air blast mode effectively utilizes the waste heat of lime, has improved the thermo-efficiency in the utility model limestone kiln, has reduced the consumption of fuel, thereby has reduced the production cost of lime.

Shown in Fig. 4 A, Fig. 4 B, cloth guide plate 40 in 360 degree scopes, be divided into three be respectively 90 degree to outer arcuate charging guide plate and one 90 degree to the arc charging guide plate, three border lines to the outer arcuate charging guide plate are involute urve shape.Compound drops to radius point different on the charge level at the water conservancy diversion of outside arc-shaped guide plate like this, and fall to the charge level central position at water conservancy diversion to the arc charging guide plate, guaranteed compound in LUMPINESS DISTRIBUTION and mix evenly, in order further to make blanking even and charge level is smooth, the every charging of distribution device is once revolved turn 90 degrees.

Shown in Fig. 5 A, Fig. 5 B, roller devices 37 has upper and lower track 41, roller shaft 43,12 conical rollers 42, gland 44 and roller shaft collar 45, the intersection point of the intersection point of the plain line of the conical surface of upper and lower track 41 and roller 42 conical surfaces element line is a same point and on the rotation of track 41, has guaranteed that roller 42 contacts with the line of track 41, and roller 42 is fixed on the roller shaft collar 45 by roller shaft 43 and gland 44.This roller devices supporting capacity is big, running is steady, be difficult for derailing, frictional force is little, wearing and tearing are little, mechanical fault is few, and can make ash-discharging device and distribution device safe handling under heavier load, long service life can also reduce the use power of ash-discharging device and distribution device.

The utility model limestone kiln configuration automatic control system, the automatic control system composition diagram as shown in the figure, in addition, as shown in Figure 8, dust unloadnig apparatus motor switch 71 is set on the utility model limestone kiln, dust unloadnig apparatus machine governor 72, vacuum table 73 at the bottom of the kiln, fuel bunker level detector 74, fuel bunker material feeder motor switch 75, ash bin-level device 76, building stones storehouse material feeder motor switch 77, electronic scale sensor 78, switch 79 under the elevating hopper, loose slot electric control valve 80, conveyor motor switch 81, gas blower damper regulator 82, ash hoist motor switch 84, kiln gas capnograph 85, ash discharge temperature thermocouple 86, cooling section thermocouple 87, air blast wind1 meter 88, calcination section lower end thermocouple 89, calcination section upper end thermocouple 90, preheating section thermocouple 91, kiln gas temperature thermocouple 92, kiln gas tensimeter 93, distributor motor switch 97, crane is to rear position-arresting switch 98, crane lifting motor switch 99, elevating hopper blowing switch 100, visit glassware 101, charging storage tank loam cake cylinder electric control valve 102, charging storage tank loam cake is opened stop bit switch 103, charging storage tank lower cover cylinder electric control valve 104, charging storage tank lower cover is opened stop bit switch 105, compressed air reservoir air manometer 106, ignition switch 107, the utility model limestone kiln automatic charging, charging, the cloth control schematic diagram as shown in figure 10, the utility model limestone kiln instrument monitoring control principle figure as shown in figure 11, calcination Automatic Control Theory figure is as shown in figure 12.

Claims

1. A lime kiln, comprising a kiln foundation with a hollow inner cavity, a barrel-shaped kiln body, an annular operating platform for the kiln body, stairs connecting the operating platform, a feeding device, a feeding device, an ash unloading device, a material distributing device, a drum Wind device, characterized in that:

The kiln body has a platform on the top. The kiln body is divided into preheating section, calcination section and cooling section. The top of the kiln body is equipped with a kiln gas discharge pipe. The kiln body has a kiln lining. The kiln lining is a cylindrical barrel in the preheating section and calcination section. In the cooling section, it is an inverted conical barrel shape, and the inner diameter of the kiln lining at the upper end of the cooling section is larger than that of the preheating section and the calcination section. The kiln body is equipped with six hot air collection ports at the junction of the cooling section and the calcination section. A protective plate is installed on the inner surface of the kiln lining in the hot section, and there is a transmission chamber between the kiln foundation and the kiln body, and the kiln foundation has an air inlet and an air outlet;

The feeding device includes a stone storage bin and a fuel storage bin with adjustable vibrating feeders installed at the outlet, grids at the entrance of the stone storage bin and fuel storage bin, a belt conveyor under the feeder and The movable trough is located below the movable trough and placed on an electronic scale with a cone-shaped live bottom drum-shaped upper hopper, fixed on the horizontal track on the top platform of the kiln body, close to the ring-shaped operating platform of the kiln body and connected to it with brackets. The vertical lifting track of the shield, the crane with vertical lifting and horizontal dragging functions, the upper hopper is connected with the wire rope of the crane;

Feeding device, which includes a barrel-shaped storage tank with upper and lower covers fixed on the center of the top platform of the kiln body and a pulley frame. The lower half of the storage tank is placed in the kiln body and connected to the kiln roof platform through the flange. Fixed connection, a support seat is fixed on the side wall of the storage tank, the upper cover of the storage tank is connected with a cylinder, the lower cover is tapered and connected with a steel wire rope, and the steel wire rope goes around a fixed pulley fixed on the wall of the storage tank And pass through the side wall of the storage tank to connect with a heavy hammer suspended on the pulley frame. There is a movable pulley in the middle of the steel wire rope, and the heavy hammer is connected with the piston of a cylinder through a steel wire rope bypassing two fixed pulleys;

The material distribution device includes a transmission part and a rotating part. The transmission part includes a star-shaped cycloidal pinwheel reduction motor fixed on the top platform of the kiln body and a first-stage cylindrical gear reduction device matched with it. The output shaft of the reduction device extends through the sealing device. Entering the kiln body, the rotating part includes a roller device fixed on the supporting seat, and the roller device is connected with an upper rail seat with a ring gear, the small cylindrical gear at the end of the reduction device meshes with the ring gear, and the upper rail seat passes through The hanger is connected with a cloth guide plate;

The ash unloading device is set at the lower outlet of the kiln body cooling section. It includes a support seat fixed on the foundation, a roller device fixed on the support seat, and a star-shaped cycloidal pin gear motor installed on the kiln foundation support. And the first-stage cylindrical gear reduction device matched with it, an ash unloader with spiral conical rotating steps at the bottom of the kiln body, an annular ash tray and ash outlet under the ash unloader, the ash tray and ash outlet There are radial and axial gaps between the grooves, and an ash retaining ring is arranged above the ash tray. The ash discharge groove is connected with a star-shaped ash discharge machine with four mutually disconnected charging chambers on the rotor. The ash discharge machine is installed on On the basis of the kiln outside the kiln, a fully closed connection is adopted between the ash outlet, the kiln body and the ash outlet, and the ash outlet is connected to a gear motor. , the platform of the steps is an integral flat belt that circles around the center from top to bottom, from inside to outside, and a flat scraper is fixed on the ash discharge chute above the ash tray;

Blowing device, including fan, hot air pipe, hot air collecting pipe, cold air pipe and rotating wind cap, the fan is installed in the hollow cavity of the kiln foundation, the hot air collecting port is connected with the fan inlet through the hot air collecting pipe, and the fan outlet is passed through the hot air The air pipe is connected to the air inlet of the calcining section of the kiln body, and the rotating air cap is set on the top of the ash unloader and connected to the outlet on the top of the kiln foundation through a cold air pipe.

2. The lime kiln according to claim 1, characterized in that: within the range of 360 degrees, the distribution guide plate is divided into three 90-degree outward arc-shaped material guide plates and one 90-degree inward arc-shaped material guide plate. As for the material guide plate, the outer edge lines of the three outward arc material guide plates are involute.

3. The lime kiln according to claim 1, characterized in that: the roller device has upper and lower tracks, 12 conical rollers, roller shafts, glands and roller fixing plates, and the cone surface plain lines of the upper and lower tracks The intersection point and the intersection point of the roller cone surface prime line are the same point and on the axis of rotation of the track, and the roller is fixed on the roller fixed disk through the roller shaft and the gland.