CN201809292U - Efficient air inlet device for shaft furnace lime kiln - Google Patents

Efficient air inlet device for shaft furnace lime kiln Download PDF

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Publication number
CN201809292U
CN201809292U CN2010202379147U CN201020237914U CN201809292U CN 201809292 U CN201809292 U CN 201809292U CN 2010202379147 U CN2010202379147 U CN 2010202379147U CN 201020237914 U CN201020237914 U CN 201020237914U CN 201809292 U CN201809292 U CN 201809292U
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CN
China
Prior art keywords
blast cap
gathering cover
air inlet
inlet device
blocking body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010202379147U
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Chinese (zh)
Inventor
张永波
田洪芳
葛均收
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Individual
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Individual
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Publication date
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Priority to CN2010202379147U priority Critical patent/CN201809292U/en
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Publication of CN201809292U publication Critical patent/CN201809292U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an efficient air inlet device for a shaft furnace lime kiln, which belongs to the technical field of lime kilns. The air inlet device comprises an ash blocking body, an air gathering cover, a hood and an ash discharging device, wherein the hood consists of a herringbone hood top, a hood barrel body and a flange plate connected with an air duct; the lower end of the ash blocking body is connected with the air gathering cover through a fixing bracket; and the lower end of the air gathering cover is connected with the herringbone hood top of the hood through a steel bar. The air inlet device provided by the utility model solves the problem of big convolution of airflow in the shaft furnace lime kiln, enables lime at each part in the kiln to be fully decomposed, improves the activity of the produced lime and the production efficiency of the lime kiln, has a simple structure, and is economic and practical.

Description

The efficient air inlet device of a kind of shaft kilns for lime
Technical field
The utility model belongs to the lime burner furnace technical field, relates to the efficient air inlet device of a kind of shaft kilns for lime specifically.
Background technology
Existing shaft kilns for lime air inlet device, as the column type, air inlet devices such as pagoda-shaped, for preventing that wind tube outlet from falling into the powdery ashes, the cap of an inverted V-shape is equipped with on air inlet device top, and cold wind is from the downward-sloping outflow of blast cap, and at first flow to stove around, though cold wind is imported into from the shaft furnace center, around forming one, the shaft furnace bottom makes progress the big backflow that the center is downward.
The big result who causes that refluxes is, the cold wind temperature around the furnace wall is lower, the oxygen level height, and combustionvelocity is fast, and calcining zone is thin, moves downward good cooling results, activity of lime height with furnace charge; The top-down gas flow temperature height in center, oxygen level is low, and combustionvelocity is slow, the calcining tape thickness, cooling conditions is poor, and the activity of lime of production is low.This situation causes the shaft furnace diameter not increase, and has influence on the capacity of shaft furnace, causes productivity lower.
Prior art document at the shaft kilns for lime air inlet device is also arranged at present, as the patent No. is the improved air inlet device that 98241517.6 patent is announced, shortcoming is: after the perforate of cold air stream air-out crown, it is big to disperse flow, and the part cold air stream that makes progress is flowed through after olive-type keeps off grey fairing, flows to change, so, the cold air flow that the body of heater central section makes progress is still not enough, and olive-type keeps off grey fairing and makes difficulty, cost height simultaneously.
The utility model content
Technical assignment of the present utility model is at the problems referred to above, especially No. 98241517.6 existing problems of patent is done further to improve, and provides a kind of shaft kilns for lime efficient air inlet device.
As mentioned above, shaft kilns for lime air inlet device of the prior art remains in some defective, equipment cost height not only, and influenced activity degree and production efficiency that shaft kilns for lime is produced lime.For reducing the production cost of air inlet device, improve air-flow working order in the shaft kilns for lime, the present invention goes out wind apparatus to the top in No. 98241517.6 patents and has done further improvement.
The technical scheme that the utility model technical solution problem is adopted is: the efficient air inlet device of a kind of shaft kilns for lime, comprise blast cap, dust blocking body, ash exhauster and fixed support, blast cap is made of the herring-bone blast cap top of top end opening and the blast cap cylindrical shell of stack shell band perforate, dust blocking body is fixed on the blast cap top, ash exhauster is installed in the blast cap inner barrel, top is poly-dust funnel, be fixed in the blast cap barrel wall, the bottom is the straight tube of hollow, at described blast cap top wind gathering cover is installed, wind gathering cover is fixed on the blast cap top by equally distributed 3~6 steel bars; The circular apical pore of described wind gathering cover band, and and the blast cap top between the grey gap of leakage is arranged; Described dust blocking body middle part is a right cylinder, and two ends are cone up and down, and welds with the middle part right cylinder, and cone partly placed the wind gathering cover circular hole under the dust blocking body column part reached; Described dust blocking body is by being fixed on the wind gathering cover along equally distributed 3~6 steel bars of barrel portion perisporium.
Described wind gathering cover is welded by cylindrical drum and circular cone tube two portions, and it is big by 20% that described wind gathering cover circular top bore dia backs down pore radius than the herring-bone blast cap, and it is big by 10% that described dust blocking body barrel portion diameter backs down pore radius than the herring-bone blast cap.
The beneficial effect that the utility model can bring is:
1, wind gathering cover can change direction once more with the air-flow that changes direction because of dust blocking body, air-flow is upwards flowed along wind gathering cover tip circle hole, directly enter shaft furnace calcining central section, it is low to have solved calcining central section air-flow oxygen level, combustionvelocity is slow, produce the low drawback of activity of lime, also can therefore increase the shaft furnace capacity, improve kiln production efficiency.
2, the dust blocking body shape and structure is easy to make, and cost is low.
Description of drawings
Fig. 1, the utility model one-piece construction synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done following detailed description.
Fig. 1 is the utility model one-piece construction synoptic diagram
Among Fig. 1: 1-gathers dust funnel, the fixing poly-dust funnel steel bar of 2-, 3-wind gathering cover fixedly steel bar, 4-herring-bone crown hole, 5-dust blocking body fixed support, 6-dust blocking body, 7-wind gathering cover apical pore, 8-wind gathering cover, 9-herring-bone crown, 10-blast cap barrel air outlet opening, the straight tube of 11-hollow, 12-blast cap cylindrical shell, 13-ring flange.
Referring to Fig. 1, the efficient air inlet device of a kind of shaft kilns for lime, comprise blast cap, dust blocking body 6, ash exhauster and fixed support, blast cap is made of the herring-bone blast cap top 9 of top end opening and the blast cap cylindrical shell 12 of stack shell band perforate, dust blocking body 6 is fixed on the herring-bone blast cap and pushes up 9 tops, and ash exhauster is installed in blast cap cylindrical shell 12 inside, and top is poly-dust funnel 9, be fixed in blast cap cylindrical shell 12 body walls, the bottom is the straight tube 11 of hollow.
Push up 12 tops with the fixing wind gathering cover 8 of equally distributed 3~6 steel bars at the herring-bone blast cap, wind gathering cover 8 is with circular apical pore 7, and and the blast cap top between the grey gap of leakage is arranged.Dust blocking body 6 middle parts are a right cylinder, and two ends are cone up and down, and weld with the middle part right cylinder; Dust blocking body 6 column parts reach down, and cone partly places wind gathering cover apical pore 7; Dust blocking body 6 is by being fixed on the wind gathering cover 8 along equally distributed 3~6 steel bars of barrel portion perisporium.
Air-flow through this device flow process is: air-flow at first enters blast cap cylindrical shell 12 by the air channel, and a part directly enters shaft furnace by blast cap barrel air outlet opening 10, upwards enters calcining zone along the furnace wall; Remainder enters wind gathering cover 8 by the apical pore 4 of herring-bone crown 9, and the ventilation gap of 6 of apical pore 7 by wind gathering cover 8 and dust blocking bodies directly upwards enters calcining zone then.

Claims (4)

1. efficient air inlet device of shaft kilns for lime, comprise blast cap, dust blocking body, ash exhauster and fixed support, blast cap is made of the herring-bone blast cap top of top end opening and the blast cap cylindrical shell of stack shell band perforate, dust blocking body is fixed on the blast cap top, ash exhauster is installed in the blast cap inner barrel, top is poly-dust funnel, be fixed in the blast cap barrel wall, the bottom is the straight tube of hollow, it is characterized in that: at described blast cap top wind gathering cover is installed, wind gathering cover is fixed on the blast cap top by equally distributed 3~6 steel bars; The circular apical pore of described wind gathering cover band, and and the blast cap top between the grey gap of leakage is arranged; Described dust blocking body middle part is a right cylinder, and two ends are cone up and down, and welds with the middle part right cylinder, and cone partly placed the wind gathering cover circular hole under the dust blocking body column part reached; Described dust blocking body is by being fixed on the wind gathering cover along equally distributed 3~6 steel bars of barrel portion perisporium.
2. the efficient air inlet device of shaft kilns for lime according to claim 1 is characterized in that: described wind gathering cover is welded by cylindrical drum and circular cone tube two portions.
3. the efficient air inlet device of shaft kilns for lime according to claim 1 is characterized in that: it is big by 20% that described wind gathering cover circular top bore dia backs down pore radius than the herring-bone blast cap.
4. the efficient air inlet device of shaft kilns for lime according to claim 1 is characterized in that: it is big by 10% that described dust blocking body barrel portion diameter backs down pore radius than the herring-bone blast cap.
CN2010202379147U 2010-06-17 2010-06-17 Efficient air inlet device for shaft furnace lime kiln Expired - Fee Related CN201809292U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202379147U CN201809292U (en) 2010-06-17 2010-06-17 Efficient air inlet device for shaft furnace lime kiln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202379147U CN201809292U (en) 2010-06-17 2010-06-17 Efficient air inlet device for shaft furnace lime kiln

Publications (1)

Publication Number Publication Date
CN201809292U true CN201809292U (en) 2011-04-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202379147U Expired - Fee Related CN201809292U (en) 2010-06-17 2010-06-17 Efficient air inlet device for shaft furnace lime kiln

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110228954A (en) * 2019-05-17 2019-09-13 南京恒辉粉体技术工程有限公司 A kind of novel environment friendly automation lime shaft kiln balanced ventilation device
CN114591007A (en) * 2022-04-12 2022-06-07 淮阴工学院 Recovery device and method for blast cap in lime kiln

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110228954A (en) * 2019-05-17 2019-09-13 南京恒辉粉体技术工程有限公司 A kind of novel environment friendly automation lime shaft kiln balanced ventilation device
CN114591007A (en) * 2022-04-12 2022-06-07 淮阴工学院 Recovery device and method for blast cap in lime kiln
CN114591007B (en) * 2022-04-12 2022-11-18 淮阴工学院 Recovery device and method for blast cap in lime kiln

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110427

Termination date: 20130617