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Annular double-chamber lime kiln spray gun adjusting method

The technology of a double-chamber lime kiln and an adjustment method is applied in the direction of lime production, which can solve the problems of uneven calcination and inability to guarantee the quality of lime, and achieve the effect of reducing the analysis range, ensuring the quality, and improving the adjustment speed and accuracy.

Active Publication Date: 2021-06-22
SHENMU CALCIUM CALCIUM GRP ENERGY DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems of uneven calcination and unguaranteed lime quality in existing annular double-chamber lime kilns, the present invention provides a method for adjusting spray guns in annular double-chamber lime kilns. Uniform calcination to improve the quality of burnt lime

Method used

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  • Annular double-chamber lime kiln spray gun adjusting method
  • Annular double-chamber lime kiln spray gun adjusting method
  • Annular double-chamber lime kiln spray gun adjusting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like figure 2 According to the plan view of the kiln body, it can be seen that the lime kiln has 35 meters of lances, 13 lances in the inner ring and 19 lances in the outer ring, which are evenly distributed in the lime kiln. The function of the lances is to provide fuel to the lime kiln. . There are four push valves at the bottom of each kiln.

[0033] Adjust the spray gun of the annular double-chamber lime kiln as follows:

[0034] 1) Open all spray guns at a uniform angle of 70°;

[0035] 2) According to the vertical position of the spray gun, according to the principle of proximity, all spray guns are corresponding to the push valve;

[0036] 3) The lime falls into the push valve, and takes samples from each push valve through the manhole:

[0037] 4) According to the state of the sampled lime, adjust the angle of the spray gun corresponding to the push valve. If it is slaked lime, it will not change; if it is quick lime, adjust the angle of the spray gun corr...

Embodiment 2

[0039] Adjust the spray gun of the annular double-chamber lime kiln as follows:

[0040] 1) Open all spray guns at a uniform angle of 70°;

[0041] 2) According to the vertical position of the spray gun, according to the principle of proximity, all spray guns are corresponding to the push valve;

[0042] 3) The lime falls into the push valve, and takes samples from each push valve through the manhole;

[0043] 4) According to the state of the sampled lime, adjust the angle of the spray gun corresponding to the push valve. If it is slaked lime, it will not change; if it is quick lime, adjust the angle of the spray gun corresponding to the sampling point to be greater than 70°.

[0044] 5) After adjustment, re-sampling to judge and adjust until the lime is qualified.

Embodiment 3

[0046] On the basis of implementing 2-3, the method for determining the sampling point in the push valve is as follows:

[0047] 3.1) Determine the projection arc of the corresponding inner ring spray gun and the corresponding outer ring spray gun in the push valve, and the center of the circle is the geometric center of the push valve: according to the direction of the falling of lime.

[0048] The radius of the projected arc of the inner ring spray gun R1=Rn*Lt / R, where Rn is the radius of the circle where the inner ring spray gun is located, Lt is the vertical distance from the outer edge of the push valve to the center line of the furnace, and R is the radius of the furnace;

[0049] The radius of the projection arc of the outer ring spray gun R2=Rw*Lt / R, where Rw is the radius of the circumference of the outer ring spray gun, Lt is the vertical distance from the outer edge of the push valve to the center line of the furnace, and R is the radius of the furnace;

[0050] 3....

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Abstract

The invention relates to an annular double-chamber lime kiln spray gun adjusting method which comprises the following steps: 1) opening all spray guns at a unified angle; (2) according to the vertical positions of the spray guns, enabling all the spray guns to be correspond to material pushing valves according to the principle of proximity; (3) determining a sampling point in the material pushing valve, and sampling; and (4) adjusting a spray gun angle corresponding to the material pushing valve according to the state of the sampled lime. According to the method, the technical problems that an existing annular double-chamber lime kiln is uneven in calcination and the quality of lime cannot be guaranteed are solved, and the method can guarantee uniform calcination so as to improve the quality of calcined lime.

Description

technical field [0001] The invention belongs to the field of annular double-chamber lime kilns, in particular to a method for adjusting a spray gun of annular double-chamber lime kilns. Background technique [0002] The double-chamber lime shaft kiln includes vertical kiln chamber A and vertical kiln chamber B, which are respectively provided with inlet and outlet ports and are arranged side by side. The radius of the kiln chamber is R. Vertical kiln chamber A and vertical kiln chamber The bore B is communicated by a connecting channel. The double-chamber kiln is from top to bottom: preheating zone, calcining zone and cooling zone. The total height of the whole kiln is 55m, and the kiln chamber at 35m is evenly set with two circles of lances for supplying fuel into the kiln chamber. The radius of the inner ring lance is Rn, and the radius of the outer ring lance is Rw. 13m is the unloading platform, which is the finished product unloading area. After passing through the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B2/12
CPCC04B2/12Y02P40/40
Inventor 李习文王炜李金凤王俊党广社
Owner SHENMU CALCIUM CALCIUM GRP ENERGY DEV CO LTD
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