CN104894331A - Anti-scaling evaporation cooling equipment for primary dry dedusting of converter - Google Patents
Anti-scaling evaporation cooling equipment for primary dry dedusting of converter Download PDFInfo
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- CN104894331A CN104894331A CN201510375178.9A CN201510375178A CN104894331A CN 104894331 A CN104894331 A CN 104894331A CN 201510375178 A CN201510375178 A CN 201510375178A CN 104894331 A CN104894331 A CN 104894331A
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- spray gun
- good antiscale
- antiscale property
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to an anti-scaling evaporation cooling equipment for primary dry dedusting of a converter. The anti-scaling evaporation cooling equipment comprises an anti-scaling evaporation cooler (2), an elbow deduster (3), a double-medium tempering spray gun (5), a double-medium cooling spray gun (6) and a fluidization back-flushing deashing device (15). A high-temperature-resistance nonmetal compensator (1) is arranged at an inlet of the anti-scaling evaporation cooler (2), the elbow deduster (3) is arranged at an outlet of the anti-scaling evaporation cooler (2), and the fluidization back-flushing deashing device (15) is arranged around the anti-scaling evaporation cooler (2). By the equipment, the problem of hole forming on a vaporization cooling flue of a double-flow spray gun is solved, the problem that the inner wall of an evaporation cooling tower is prone to scaling is solved, and the problem that dust discharging of a diffusing chimney at the early stage of smelting of the converter, at the stage of secondary gun lowering and at the later stage of smelting does not reach the standards is solved. The anti-scaling evaporation cooling equipment is especially suitable for projects of primary smoke wet dedusting to dry dedusting of the converter and is wide in application prospect.
Description
Technical field
The present invention relates to field of environment protection equipment, more particularly, relate to a kind of converter dry method dust good antiscale property evaporative cooling equipment.
Background technology
Along with the continuous reinforcement of environmental consciousness, converter that is newly-built and reconstruction mostly adopts dry-dedusting system.In converter power house, dry dust removal equipment routine is arranged as follows: double-flow spray gun is arranged on gasification cooling flue end, and in wet cooling tower, atomized water spray carries out lowering the temperature and depositing dust, and carries out modified to raw gas; The cinder that banana-bends is collected delivers to cinder storehouse by built-in double-chain type conveyor, is transported outward by bulk cement truck.
Existing converter main Problems existing of dry dust removal equipment: one is that double-flow spray gun is arranged on gasification cooling flue end, need perforate on gasification cooling flue, especially change in dry method dust transformation project in wet method, gasification cooling flue end must be changed, add facility investment and installation difficulty; Two is the easy foulings of transpiration cooling inner wall of tower, and built-in double-chain type conveyor failure rate is high, easily blocks ash, and then affects converter and normally produce; Three is that rifle and smelting later stage diffusing chimney are smoldered under converter smelting initial stage, secondary, and dust discharge is not up to standard, contaminate environment.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, provides a kind of converter a dry method dust good antiscale property evaporative cooling equipment.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of converter dry method dust good antiscale property evaporative cooling equipment, comprises good antiscale property evaporative cooler, elbow fly-ash separator, the modified spray gun of two medium, two medium cooling spray gun and fluidisation back-blowing dust removing device;
Described good antiscale property evaporative cooler entrance is provided with high temperature resistant non-metal compensator, and the outlet of good antiscale property evaporative cooler is provided with elbow fly-ash separator, and good antiscale property evaporative cooler surrounding is provided with fluidisation back-blowing dust removing device;
Described built-in double-chain type conveyor is inclined and mounted on the below of described elbow fly-ash separator;
Described good antiscale property evaporative cooler epicone bucket is provided with two modified spray guns of medium and two medium cooling spray gun;
Dirt separator, relief valve and pneumatic ball valve is provided with between described nitrogen tube and described fluidisation back-blowing dust removing device.
In converter of the present invention dry method dust good antiscale property evaporative cooling equipment, the described pair of modified spray gun of medium is connected with water pipe and first medium pipe.
In converter of the present invention dry method dust good antiscale property evaporative cooling equipment, described pair of medium cooling spray gun is connected with water pipe and second medium pipe.
Implement converter of the present invention dry method dust good antiscale property evaporative cooling equipment, there is following beneficial effect:
1, two medium spray gun is arranged on good antiscale property evaporative cooler, and solve a difficult problem for perforate on gasification cooling flue, installation difficulty reduces greatly.
2, solve the problem of the easy fouling of transpiration cooling inner wall of tower, guarantee that converter is normally produced.
3, to solve under converter smelting initial stage, secondary rifle and smelt later stage diffusing chimney dust discharge problem not up to standard, more environmental protection.
The present invention not only solves a difficult problem for double-flow spray gun perforate on gasification cooling flue, also the problem of the easy fouling of transpiration cooling inner wall of tower is solved, to also solve under converter smelting initial stage, secondary rifle and smelt later stage diffusing chimney dust discharge problem not up to standard, especially be applicable to converter flue gas wet method and change dry method dust project, have a extensive future.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of a converter of the present invention dry method dust good antiscale property evaporative cooling equipment.
Embodiment
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
As shown in Figure 1, converter of the present invention dry method dust good antiscale property evaporative cooling equipment comprises good antiscale property evaporative cooler 2, elbow fly-ash separator 3, the modified spray gun of two medium 5, two medium cooling spray gun 6 and fluidisation back-blowing dust removing device 10;
Good antiscale property evaporative cooler 2 entrance is provided with high temperature resistant non-metal compensator 1, expands with heat and contract with cold for compensation equipment; Good antiscale property evaporative cooler 2 outlet is provided with elbow fly-ash separator 3, good antiscale property evaporative cooler 2 surrounding is provided with fluidisation back-blowing dust removing device 10, fluidisation back-blowing dust removing device 10 is chain with converter process, after the tapping of each stove terminates, fluidisation back-blowing dust removing device 10 runs 3 minutes, is cleaned out by the floating dust on good antiscale property evaporative cooler 2 inwall;
Built-in double-chain type conveyor 4 is inclined and mounted on the below of elbow fly-ash separator 3;
Good antiscale property evaporative cooler 2 epicone bucket is provided with two modified spray guns of medium 5 and two medium cooling spray gun 6, when good antiscale property evaporative cooler 2 temperature out be greater than 100 DEG C and be less than 250 DEG C time, enable two modified spray gun 5 of medium, two medium cooling spray gun 6 cuts out; When good antiscale property evaporative cooler 2 temperature out is more than or equal to 250 DEG C, enable two medium cooling spray gun 6, the modified spray gun 5 of two medium cuts out;
Be provided with dirt separator 12, relief valve 13 and pneumatic ball valve 14 between nitrogen tube 11 and fluidisation back-blowing dust removing device 10, relief valve 13 can regulate the flow of medium pressure nitrogen gas.
In the present invention, the technical process of a converter dry method dust good antiscale property evaporative cooling equipment reverse gas cleaning is as follows:
Nitrogen tube 11 → dirt separator 12 → relief valve 13 → pneumatic ball valve 14 → fluidisation back-blowing dust removing device 10 → good antiscale property evaporative cooler 2.
Good antiscale property evaporative cooler 2 entrance flue gas temperature 800 DEG C ~ 900 DEG C (being generally 850 DEG C), after atomized water spray cooling, good antiscale property evaporative cooler 2 exit gas temperature 250 DEG C ~ 350 DEG C (being generally 280 DEG C).
When dust-laden raw gas is by elbow fly-ash separator 3, owing to flowing to the change of generation 180 °, under the effect of gravity and centrifugal force, the crude particle dust of 28% ~ 32% (being generally 30%) is captured at elbow fly-ash separator 3; Crude particle dust water ratio is 0% ~ 3%.
Further, good antiscale property evaporative cooler 2 material is stainless steel and boiler steel, combinationally uses.
Further, the modified spray gun of two medium 5 adopts the spray gun of interior mixed form, and first medium pipe delivery medium adopts low-pressure nitrogen, low-pressure nitrogen pressure >=0.8MPa.
Further, two medium cooling spray guns 6 adopt the spray gun of outer mixed form, and second medium pipe delivery medium adopts low-pressure nitrogen or saturation steam, low-pressure nitrogen or saturated vapour pressure >=1.0MPa.
Further, the medium pressure nitrogen atmospheric pressure >=1.6MPa of nitrogen tube 11 conveying.
Converter in converter of the present invention dry method dust good antiscale property evaporative cooling equipment is defined as: decarburization converter or dephosphorization converter or lava homogenizing furnace or stainless steel or converter extracting vanadium.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (3)
1. converter dry method dust good antiscale property evaporative cooling equipment, it is characterized in that, comprise good antiscale property evaporative cooler (2), elbow fly-ash separator (3), the modified spray gun of two medium (5), two medium cooling spray gun (6) and fluidisation back-blowing dust removing device (10);
Described good antiscale property evaporative cooler (2) entrance is provided with high temperature resistant non-metal compensator (1), good antiscale property evaporative cooler (2) outlet is provided with elbow fly-ash separator (3), and good antiscale property evaporative cooler (2) surrounding is provided with fluidisation back-blowing dust removing device (10);
Described built-in double-chain type conveyor (4) is inclined and mounted on the below of described elbow fly-ash separator (3);
Described good antiscale property evaporative cooler (2) epicone bucket is provided with two modified spray guns of medium (5) and two medium cooling spray gun (6);
Dirt separator (12), relief valve (13) and pneumatic ball valve (14) is provided with between described nitrogen tube (11) and described fluidisation back-blowing dust removing device (10).
2. converter according to claim 1 dry method dust good antiscale property evaporative cooling equipment, is characterized in that, the described pair of modified spray gun of medium (5) is connected with water pipe (7) and first medium pipe (8).
3. converter according to claim 1 dry method dust good antiscale property evaporative cooling equipment, is characterized in that, described pair of medium cooling spray gun (6) is connected with water pipe (7) and second medium pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510375178.9A CN104894331A (en) | 2015-06-30 | 2015-06-30 | Anti-scaling evaporation cooling equipment for primary dry dedusting of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510375178.9A CN104894331A (en) | 2015-06-30 | 2015-06-30 | Anti-scaling evaporation cooling equipment for primary dry dedusting of converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104894331A true CN104894331A (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510375178.9A Pending CN104894331A (en) | 2015-06-30 | 2015-06-30 | Anti-scaling evaporation cooling equipment for primary dry dedusting of converter |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352422A (en) * | 2011-10-31 | 2012-02-15 | 中冶南方工程技术有限公司 | Evaporative cooling tower for dry method convertor gas dedusting |
| CN102382933A (en) * | 2011-10-31 | 2012-03-21 | 中冶南方工程技术有限公司 | One-time flue gas dry-process dust removing process of converter |
| CN102776315A (en) * | 2012-08-17 | 2012-11-14 | 中冶南方工程技术有限公司 | Evaporative cooling tower and process for dry dedusting of converter gas |
| CN104004879A (en) * | 2014-06-11 | 2014-08-27 | 中冶南方工程技术有限公司 | Equipment and method for recovering low-temperature-section waste heat of primary converter flue gas |
| CN205062105U (en) * | 2015-06-30 | 2016-03-02 | 中冶南方工程技术有限公司 | Dry process of converter is removed dust and is prevented scale deposit evaporation cooling equipment |
-
2015
- 2015-06-30 CN CN201510375178.9A patent/CN104894331A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352422A (en) * | 2011-10-31 | 2012-02-15 | 中冶南方工程技术有限公司 | Evaporative cooling tower for dry method convertor gas dedusting |
| CN102382933A (en) * | 2011-10-31 | 2012-03-21 | 中冶南方工程技术有限公司 | One-time flue gas dry-process dust removing process of converter |
| CN102776315A (en) * | 2012-08-17 | 2012-11-14 | 中冶南方工程技术有限公司 | Evaporative cooling tower and process for dry dedusting of converter gas |
| CN104004879A (en) * | 2014-06-11 | 2014-08-27 | 中冶南方工程技术有限公司 | Equipment and method for recovering low-temperature-section waste heat of primary converter flue gas |
| CN205062105U (en) * | 2015-06-30 | 2016-03-02 | 中冶南方工程技术有限公司 | Dry process of converter is removed dust and is prevented scale deposit evaporation cooling equipment |
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Application publication date: 20150909 |
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| RJ01 | Rejection of invention patent application after publication |