CN102091662A - Method for calcinating cellular denitration catalyst in roller kiln - Google Patents
Method for calcinating cellular denitration catalyst in roller kiln Download PDFInfo
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- CN102091662A CN102091662A CN 201110028626 CN201110028626A CN102091662A CN 102091662 A CN102091662 A CN 102091662A CN 201110028626 CN201110028626 CN 201110028626 CN 201110028626 A CN201110028626 A CN 201110028626A CN 102091662 A CN102091662 A CN 102091662A
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- denitrating catalyst
- honeycomb fashion
- roller kilns
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Abstract
The invention provides a method for calcinating a cellular denitration catalyst in a roller kiln, comprising the specific step of putting the cellular denitration catalyst to be calcinated in the roller kiln to calcinate. By calcinating the cellular denitration catalyst in the roller kiln, because the control of the temperature of the roller kiln is uniform, the calcination of the cellular denitration catalyst is consecutive, and the calcination curve is reasonable, the energy consumption of the cellular denitration catalyst is reduced effectively, the calcination quality of the product is ensured, and the calcination efficiency of the cellular denitration catalyst is improved.
Description
Technical field
The present invention relates to the method for calcinating of honeycomb fashion denitrating catalyst, relate in particular to a kind of roller kilns the honeycomb fashion denitrating catalyst is carried out calcining method.
Background technology
SCR (Selective Non-Catalytic Reduction, hereinafter to be referred as: SCR) denitration technology is at present most widely used in the world general, denitration technology that technology is the most ripe, and its core technology is exactly a denitrating catalyst.The honeycomb fashion denitrating catalyst needs to carry out calcination processing after by process equipment machine-shapings such as extruders, and honeycomb fashion selective catalytic reducing agent of the prior art adopts tunnel cave or shuttle kiln to carry out calcination processing usually.Because above-mentioned method for calcinating, the temperature difference is big in the kiln, heat utilization efficiency is low, firing time is long, causes the lower and power consumption of the calcination efficiency of honeycomb fashion selective catalytic reducing agent in the prior art greatly.
Summary of the invention
The invention provides a kind of roller kilns the honeycomb fashion denitrating catalyst is carried out calcining method, in order to solve the lower and big defective that consumes energy of calcination efficiency of honeycomb fashion denitrating catalyst in the prior art, realize improving the calcination efficiency of honeycomb fashion denitrating catalyst, and effectively reduce energy consumption.
The invention provides a kind of roller kilns the honeycomb fashion denitrating catalyst is carried out calcining method, adopt roller kilns that the honeycomb fashion denitrating catalyst is calcined, concrete steps comprise: honeycomb fashion denitrating catalyst that will be to be calcined is put in the roller kilns and is calcined.
Roller kilns provided by the invention carry out calcining method to the honeycomb fashion denitrating catalyst, by roller kilns the honeycomb fashion denitrating catalyst is calcined, because the control of the temperature of roller kilns evenly, calcining is continuous, the calcining curve is reasonable, effectively reduced the energy consumption of calcining honeycomb fashion denitrating catalyst, guaranteed the burning quality of product, realization has improved the calcination efficiency of honeycomb fashion denitrating catalyst, and effectively reduces energy consumption.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 carries out the structural representation of employed roller kilns among the calcining method embodiment to the honeycomb fashion denitrating catalyst for roller kilns of the present invention.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Fig. 1 carries out the structural representation of employed roller kilns among the calcining method embodiment to the honeycomb fashion denitrating catalyst for roller kilns of the present invention.As shown in Figure 1, the present embodiment roller kilns carry out calcining method to the honeycomb fashion denitrating catalyst, adopt roller kilns that the honeycomb fashion denitrating catalyst is calcined, and concrete steps comprise: honeycomb fashion denitrating catalyst that will be to be calcined is put in the roller kilns and calcined.
Particularly, the roller kilns in the present embodiment can comprise degreasing district 1, calcining zone 2 and cooling zone 3; The present embodiment roller kilns carry out calcining method to the honeycomb fashion denitrating catalyst, are specially: honeycomb fashion denitrating catalyst to be calcined enters into degreasing district 1 and heats degreasing, and the temperature in degreasing district 1 is not higher than 300 degree; Enter into calcining zone 2 through the honeycomb fashion denitrating catalyst behind the degreasing district 1 and calcine, the temperature of calcining zone 2 is in the scope of 300 degree-600 degree; Entering into cooling zone 3 through the honeycomb fashion denitrating catalyst behind the calcining zone 2 cools off.Concrete, after honeycomb fashion denitrating catalyst the to be calcined rod road 4 by roller kilns entered into roller kilns, honeycomb fashion denitrating catalyst to be calcined was transported to degreasing district 1, calcining zone 2 and cooling zone 3 successively by rod road 4.
Wherein, unaffected for guaranteeing degreasing district 1, calcining zone 2 and cooling zone 3 each regional temperature, degreasing district 1, calcining zone 2 and cooling zone 3 can be arranged to equally spaced a plurality of unit respectively, i.e. degreasing district 1, calcining zone 2 and cooling zone 3 include a plurality of unit, each unit independent loops.Circulating fan inlet at roller kilns inserts hot blast and natural cold wind, and hot blast control valve and cold wind control valve link.Can be provided with three burners in the degreasing district 1, each 4-8 unit of burner control, exhaust outlet is offered in each unit, and exhaust outlet is located at circulated air kiln place, interior inlet scoop and each exhaust outlet is controlled automatically according to the negative pressure value of setting.A burner is established in each unit in the calcining zone 2, and exhaust opening is arranged on the interior air outlet of circulated air kiln and each exhaust opening is controlled automatically according to the negative pressure value of setting, and flue gas is sent to the cooling section concurrent heating.The SD angle guiding cooling section gas stream in the stove that cooled region is regulated by needs in cooling zone 3 flows and controls temperature.Wherein, Fig. 1 has only illustrated three parts that roller kilns were divided in the present embodiment, the present embodiment roller kilns carry out calcining method to the honeycomb fashion denitrating catalyst concrete structure of roller kilns are not limited, and the concrete structure of roller kilns can be with reference to the roller kilns that use in the prior art.
In addition, the roller kilns in the present embodiment can adopt natural gas to act as a fuel.Concrete, outside gas pipeline will supply natural gas to the burner in degreasing district 1 and the calcining zone 2, thus the temperature in district 1 of degreasing more accurately and effectively and the calcining zone 2.
The present embodiment roller kilns carry out calcining method to the honeycomb fashion denitrating catalyst, by roller kilns the honeycomb fashion denitrating catalyst is calcined, because the control of the temperature of roller kilns evenly, calcining is continuous, the calcining curve is reasonable, effectively reduced the energy consumption of calcining honeycomb fashion denitrating catalyst, guaranteed the burning quality of product, realization has improved the calcination efficiency of honeycomb fashion denitrating catalyst, and effectively reduces energy consumption.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (3)
1. roller kilns carry out calcining method to the honeycomb fashion denitrating catalyst, it is characterized in that, adopt roller kilns that the honeycomb fashion denitrating catalyst is calcined, and concrete steps comprise: honeycomb fashion denitrating catalyst that will be to be calcined is put in the roller kilns and calcined.
2. roller kilns according to claim 1 carry out calcining method to the honeycomb fashion denitrating catalyst, it is characterized in that, roller kilns comprise degreasing district, calcining zone and cooling zone;
Described honeycomb fashion denitrating catalyst that will be to be calcined is put in the roller kilns and is calcined, and is specially:
Honeycomb fashion denitrating catalyst to be calcined enters into the degreasing district and heats degreasing, and the temperature in degreasing district is not higher than 300 degree;
Enter into calcining zone through the honeycomb fashion denitrating catalyst behind the degreasing district and calcine, the temperature of calcining zone is in the scope of 300 degree-600 degree;
Entering into the cooling zone through the honeycomb fashion denitrating catalyst behind the calcining zone cools off.
3. roller kilns according to claim 1 and 2 carry out calcining method to the honeycomb fashion denitrating catalyst, it is characterized in that, roller kilns adopt natural gas to act as a fuel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110028626 CN102091662A (en) | 2011-01-27 | 2011-01-27 | Method for calcinating cellular denitration catalyst in roller kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110028626 CN102091662A (en) | 2011-01-27 | 2011-01-27 | Method for calcinating cellular denitration catalyst in roller kiln |
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| Publication Number | Publication Date |
|---|---|
| CN102091662A true CN102091662A (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201110028626 Pending CN102091662A (en) | 2011-01-27 | 2011-01-27 | Method for calcinating cellular denitration catalyst in roller kiln |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201335601Y (en) * | 2008-12-25 | 2009-10-28 | 欧阳可成 | Ultra-temperature roller kiln for sintering refractory raw material |
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2011
- 2011-01-27 CN CN 201110028626 patent/CN102091662A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201335601Y (en) * | 2008-12-25 | 2009-10-28 | 欧阳可成 | Ultra-temperature roller kiln for sintering refractory raw material |
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Application publication date: 20110615 |