CN2813606Y

CN2813606Y - Energy-saving profile steel structural mechanical shaft kiln

Info

Publication number: CN2813606Y
Application number: CNU2006200233568U
Authority: CN
Inventors: 牛永贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-13
Filing date: 2006-01-13
Publication date: 2006-09-06
Anticipated expiration: 2016-01-13

Abstract

The utility model relates to an energy-saving mechanical shaft kiln with a profile steel structure, which comprises a kiln cap, a kiln body, a load-bearing kiln ring which is fixed on a base, an ash removing device, an air supply device, a material feeding device and a conveying device, wherein a conveyor belt and a material distributor are installed in the kiln cap; a flue platform is positioned under the kiln cap and is arranged at the upper part of the kiln body; the flue is communicated with the kiln body and a chimney which is installed on the flue platform; a fire grate is installed at the lower end of the kiln body; a blower is connected with a blower pipeline which is positioned under the fire grate; an inner lining of the kiln body is in a bottle-shaped structure; an inner lining layer, a heat preservation layer and a heat insulation layer are arranged in the kiln body from inward to outward; the outer skin of the kiln body is the outer layer of a steel plate, and the outer layer of the steel plate is fixedly connected with the load-bearing kiln ring positioned at the lower part of the kiln body to form an integrative structure; an ash remover of the ash removing device is positioned at the lower part of a discharge port of the kiln body and is positioned on an ash remove chamber. The utility model feeds and distributes the materials in a mechanical way, and the whole operation process of the utility model is controlled by a computer. The utility model has the advantages of high work efficiency, high rate of qualified products and obvious energy saving effect.

Description

Energy-saving steel construction machinery shaft furnace

Technical field

The utility model relates to a kind of shaft furnace, specifically the energy-saving steel construction machinery shaft furnace used of lime kilning.

Background technology

At present, the kiln type of domestic production lime is an ordinary shaft kiln, and ordinary shaft kiln has two kinds in brick mix structure and steel construction, all adopts artificial cloth, and backward in technique, the production cost height yields poorly, and coal consumption is big, and product percent of pass is low.And the shaft kiln size of brick mix structure is difficult to do greatly poor seismic behavior.It is too big to be used for shaft kiln or rotary kiln fund input that lime calcining uses abroad, the operational administrative more complicated, and enterprise is difficult to accept.

Summary of the invention

The technical problems to be solved in the utility model is the many deficiencies at prior art, provides that a kind of shock resistance is good, the energy-saving steel construction machinery shaft furnace of efficient energy-saving.

Solve the problems of the technologies described above by the following technical solutions: a kind of energy-saving steel construction machinery shaft furnace, comprise the kiln cap, the kiln body, load-bearing kiln circle, the ash-discharging device of forming by dust unloadnig apparatus and ash unloading bin, by blower fan and Fan pipeline, ventilation plant is formed air-supply arrangement, by windlass, skew bridge, travelling belt is formed pay-off, the finished conveying device of forming by feed belt, be equipped with in the kiln cap and transmit the travelling belt that mixture is used, one end is communicated with the distributor that the other end communicates with the kiln body with opening for feed, the flue platform is positioned at the below of kiln cap, the top of kiln body, flue and kiln body, chimney is communicated with, chimney is installed on the flue platform, the lower end of kiln body is equipped with fire grate, blower fan is connected with Fan pipeline, Fan pipeline is positioned at the below of fire grate, its structural feature is, described kiln body inner bag is the doleiform structure, be provided with air retaining wall from inside to outside in this kiln body, thermal insulation layer, thermofin, the shell of kiln body is the steel plate skin, this steel plate is outer to be connected to one with the load-bearing kiln circle that is positioned at kiln body bottom, and the dust unloadnig apparatus of ash-discharging device is positioned at the bottom of the discharge port of kiln body, the top of ash unloading bin.

According to technique scheme, compared with prior art, because the kiln body case is the steel plate layer, steel plate layer and load-bearing kiln circle are connected to one, and structure is tight, and is durable, and anti-seismic performance is strong.The kiln body gross weight of steel construction is lighter by about 40% than the kiln body of brick mix structure, and the basis carrying alleviates, and can save the capital construction fund of kiln body.The inner lining fireproof material of this kiln cast, and segmentation is with metal riveting component rivet clasp has reduced the influence that the change of coefficient of thermal expansion and contraction in the kiln causes the kiln liner, the long service life of liner.This kiln adopts mechanize material loading, cloth, all moves by computer control, and high efficiency, the product percent of pass height, energy-saving effect is remarkable.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a side-view of the present utility model.

Fig. 3 is the one-piece construction front view that the utility model is combined.

Among the figure, chimney 1, travelling belt 2, distributor 3, kiln guard ring 4, flue platform 5, flue 6, thermofin 7, thermal insulation layer 8, kiln body 9, air retaining wall 10, fire grate 11,

ventilation plant

12,13, one sections ash unloading bins 14 of dust unloadnig apparatus, 15, two sections ash unloading bins 16 of spiral unloading valve, travelling belt 17, pneumatic plate 18, blower fan 19, load-bearing kiln circle 20, Fan pipeline 21, steel plate skin 22, kiln cap 23, feeding skew bridge 24, windlass 25, watch-keeping cubicle 26.

Embodiment

Below in conjunction with the drawings and the specific embodiments the utility model is further described.

The utility model is by the kiln body, and load-bearing kiln circle, transports compositions such as finished product device at ash-discharging device, air-supply arrangement, pay-off.Inner bag referring to Fig. 1 kiln body 9 is that two ends are narrow, middle thick vase-shaped structure, and the inner bag top of doleiform structure is provided with kiln guard ring 4.Be provided with air retaining wall 10 in the kiln body 9 from inside to outside, thermal insulation layer 8, thermofin 7, the crust of kiln body all are welded with steel plate and form steel plate skin 22.Air retaining wall 10 segmentation refractory material castings are with metal riveting component rivet clasp.Steel plate outer 22 is connected to one with the load-bearing kiln circle 20 that is positioned at kiln body bottom, and load-bearing kiln circle 20 is fixing with the basis.The bottom of kiln body 9 is equipped with fire grate 11.Transporting the finished product device is made up of ash-discharging device, feed belt 17.Ash-discharging device is positioned at the outside, lower end of kiln body 9, is made up of dust unloadnig apparatus 13 and ash unloading bin.Dust unloadnig apparatus 13 is positioned at the bottom of kiln body 9 discharge ports, the top of ash unloading bin.Ash unloading bin is the bucket type structure, is divided into one section ash unloading bin 14 and two sections ash unloading bins 16.The main purpose that one section ash unloading bin 14 and two sections ash unloading bins 16 are set is not blowing-out during production manages, and guarantees continuous production.This set has changed the mode of blowing-out in the prior art, material loading ash discharge, improves and produces calcination time.Be provided with two referring to 1, one section ash unloading bin 14 of accompanying drawing, lay respectively at the bottom of dust unloadnig apparatus 13, its bucket end, be separately installed with spiral unloading valve 15.Two sections ash unloading bins 16 are positioned under one section ash unloading bin 14, and its bucket end is connected with steam-operating plate 18, and the feed belt 17 that transmits finished product lime is positioned at the below of steam-operating plate 18.Air-supply arrangement is by blower fan 19, and Fan pipeline 21, ventilation plant 12 are formed.Blower fan 19 is installed on the load-bearing kiln circle 20, is communicated with Fan pipeline 21, and the other end of Fan pipeline 21 is positioned at fire grate 11 belows, and ventilation plant 12 is positioned at the below of fire grate 11.The bottleneck position, top of kiln body 9 is provided with flue platform 5, flue 6.Flue 6 is communicated with kiln body 9, chimney 1, and chimney 1 is installed on the flue platform 5.The upper end of kiln body 9 is the kiln caps 23 that link into an integrated entity with it, the travelling belt 2 that transmits material and use is installed in the kiln cap 23, also the distributor 3 that an end and the opening for feed connection the other end communicate with kiln body 9 is installed.Referring to Fig. 2, pay-off is made up of skew bridge 24, windlass 25, and skew bridge 24 is installed in a side of kiln body 9, and windlass 25 is installed on the basis.

Referring to accompanying drawing 3, the utility model four stoves are one group, by computer control.The feeding of complete machine and discharging and Control for Kiln Temperature are all by computer control, and watch-keeping cubicle 26 is positioned at the outside of body of heater.In addition, the steel ladder of climbing under the keeping supplying shown in Figure 2 27 all is installed in the stove of every stove.

Principle of work of the present utility model and process: building stones are through after screening, mix with coal in proportion, send into lift pot in the lump by windlass 25, the blended material is delivered to the feeding mouth of kiln body through skew bridge 24, flow to travelling belt 2, enter distributor 3 through travelling belt 2 to feeding port, by distributor 3 material being stirred enters in the kiln body.This process is sent instruction by watch-keeping cubicle 26, computer control.Because the kiln inner bag adopts vase-shaped geometrical dimension, in the kiln body, material changes direction of motion in dropping process, the material face is heated evenly, both help material and evenly fallen, area of section is constantly increased, helped the carrying out of heat exchange between gas and the material, give full play to the pre-heat effect of air-flow, reduce thermal losses material.The vary in diameter of preheating zone had both adapted to the material volume expansible characteristic of sinking to being heated, and when adapting to gas again and rising, along with the situation of temperature decline volume-diminished, made up and down that gas velocity reaches unanimity, and material can obtain the ideal pre-heat effect.Kiln bottom cooling zone cross dimensions is dwindled gradually, and gas velocity is reduced from bottom to top, when lime stops at this band, from top to bottom cross-sectional area dwindles gradually, and cooling is concentrated, and makes the lime cooling fully, reduce the ash discharge temperature, reduced thermosteresis, play energy-saving and cost-reducing effect.Kiln body liner 10 is used refractory material casting, and segmentation adds metal riveting component rivet clasp, has reduced the influence of the change of coefficient of thermal expansion and contraction in the kiln to the kiln liner, has strengthened anti-collision performance.After lime calcining is finished, entered in the dust unloadnig apparatus 13 by discharge port, send into one section ash unloading bin 14 by dust unloadnig apparatus 13, the spiral unloading valve 15 of outwarding winding advances two sections ash unloading bins 16, and lime is gone into pulley belt 17 through pneumatic plate 18 and entered ash-storing bin, finishes whole process of production.

Claims

1, a kind of energy-saving steel construction machinery shaft furnace, comprise the kiln cap, the kiln body, be fixed on the load-bearing kiln circle on the basis, the ash-discharging device of forming by dust unloadnig apparatus and ash unloading bin, by blower fan and Fan pipeline, ventilation plant is formed air-supply arrangement, by windlass, skew bridge, the pay-off that travelling belt is formed, the finished conveying device of forming by feed belt, be equipped with in the kiln cap and transmit the travelling belt that mixture is used, one end also is installed is communicated with the distributor that the other end communicates with the kiln body with opening for feed, the flue platform is positioned at the below of kiln cap, the top of kiln body, flue and kiln body, chimney is communicated with, chimney is installed on the flue platform, the lower end of kiln body is equipped with fire grate, blower fan is connected with Fan pipeline, Fan pipeline is positioned at the below of fire grate, it is characterized in that, described kiln body inner bag is the doleiform structure, be provided with air retaining wall from inside to outside in this kiln body, thermal insulation layer, thermofin, the shell of kiln body is the steel plate skin, this steel plate is outer to be connected to one with the load-bearing kiln circle that is positioned at kiln body bottom, and the dust unloadnig apparatus of ash-discharging device is positioned at the bottom of kiln body discharge port, the top of ash unloading bin.

2, energy-saving steel construction machinery shaft furnace according to claim 1 is characterized in that described air retaining wall segmentation adds riveting component.

3, energy-saving steel construction machinery shaft furnace according to claim 1, it is characterized in that, described ash unloading bin is the bucket type structure, be divided into one section ash unloading bin and two sections ash unloading bins, one section ash unloading bin is positioned at the bottom of dust unloadnig apparatus, and its bucket end is equipped with the spiral unloading valve, and two sections ash unloading bins are positioned under one section ash unloading bin, its bucket end, be connected with pneumatic plate, and the feed belt that transmits the finished product material is positioned at the below of pneumatic plate.