CN205073836U - Directly reduced iron gas base shaft furnace furnace roof gas dust collector - Google Patents
Directly reduced iron gas base shaft furnace furnace roof gas dust collector Download PDFInfo
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- CN205073836U CN205073836U CN201520808228.3U CN201520808228U CN205073836U CN 205073836 U CN205073836 U CN 205073836U CN 201520808228 U CN201520808228 U CN 201520808228U CN 205073836 U CN205073836 U CN 205073836U
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- gas
- base shaft
- pipe connection
- dust
- cooler
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Abstract
The utility model aims at providing a directly reduced iron gas base shaft furnace furnace roof gas dust collector, include that a gravitational precipitator is with gas base shaft furnace furnace roof gas vent pipe connection for once remove dust, a cyclone is with gravitational precipitator air outlet pipe connection for the secondary removes dust, a cooler is with cyclone air outlet pipe connection, an electrostatic precipitator is with cooler gas outgoing mouth pipe connection for the cubic removes dust. The problem of current wet dedusting water consumption is big, sewage treatment is difficult, dust removal effect is poor is solved.
Description
Technical field
The utility model belongs to deduster field, particularly relates to a kind of DRI gas-based shaft kiln top gas dust arrester.
Background technology
What domestic and international DRI gas-based shaft kiln top gas all adopted is scrubbing tower dedusting, and this cleaner exists following shortcoming: 1, low, the concentration of emission of efficiency of dust collection is at 50mg/Nm
3, there is certain influence to the compressor used in subsequent technique, 2, need to consume a large amount of water (1024t/h), and produce a large amount of sewage after dedusting, sewage treatment process is complicated, cost is high.So develop the hot issue that a kind of novel dust arrester becomes those skilled in the art's care.
Summary of the invention
The purpose of this utility model is to provide a kind of DRI gas-based shaft kiln top gas dust arrester, solves that existing wet dedusting water consumption is large, the problem of waste water treatmentntrol difficult, dust removing effects difference.
For solving the problem, the technical solution of the utility model is: a kind of DRI gas-based shaft kiln top gas dust arrester, comprises,
A gravitational precipitator, is connected, for one-time dedusting with gas-based shaft kiln furnace roof exhaust pipe;
Cyclone dust collectors, are connected, for final dusting with gravitational precipitator air outlet pipeline;
A cooler, is connected with cyclone dust collectors air outlet pipeline, for cooling the gas that gas-based shaft kiln is got rid of, reclaims heat, and is electric cleaner dedusting preparation;
An electric cleaner, is connected, for third dedusting with cooler gas outlet pipeline.
The beneficial effects of the utility model:
1), relative to existing wet dedusting, decrease the sewage load of 94%, become 50t/h from water use amount 1024t/h, adopt the utility model equipment can reduce the construction of relevant sewage treatment facility, reduce cost;
2), gas waste-heat utilize, because top gas temperature height amount of heat can be used as recycling, reach power conservation requirement;
3), relative to existing wet dedusting, efficiency of dust collection is high, and exit concentration is by original 50mg/Nm
310mg/Nm can be dropped to
3below, the compressor in follow-up equipment is extended service life, and maintenance cost declines.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, a kind of DRI gas-based shaft kiln top gas dust arrester, comprises,
A gravitational precipitator 2, is connected, for one-time dedusting with gas-based shaft kiln 1 furnace roof exhaust pipe;
Cyclone dust collectors 3, are connected, for final dusting with gravitational precipitator 2 air outlet pipeline;
A cooler 4, is connected with cyclone dust collectors 3 air outlet pipeline, for cooling the gas that gas-based shaft kiln is got rid of, reclaims heat, and is electric cleaner dedusting preparation;
An electric cleaner 5, is connected, for third dedusting with cooler 4 gas discharge outlet pipeline.
Gas-based shaft kiln top gas component list:
Flow: 78577nm
3/ h, temperature: 380 DEG C, pressure: 0.51bar, dustiness: 11g/Nm
3,
Composition: CO20.41, CO214.39, H236.57, H2O24.59, CH41.85, N22.19.
During use, gas-based shaft kiln furnace roof exhaust outlet installs pipes with the utility model and is connected, and can complete dedusting by the utility model equipment, carries out cycling and reutilization after dedusting by compressor.
The technical indicator that the utility model equipment mainly reaches:
1. water consumption becomes 50t/h from 1024t/h water,
2. efficiency of dust collection, after using device of the present utility model, dust concentration reduces to 10mg/Nm
3, entering compressor use to next link has larger help.
Claims (1)
1. a DRI gas-based shaft kiln top gas dust arrester, is characterized in that: comprise,
A gravitational precipitator, is connected, for one-time dedusting with gas-based shaft kiln furnace roof exhaust pipe;
Cyclone dust collectors, are connected, for final dusting with gravitational precipitator air outlet pipeline;
A cooler, is connected with cyclone dust collectors air outlet pipeline, for cooling the gas that gas-based shaft kiln is got rid of, reclaims heat, and is electric cleaner dedusting preparation;
An electric cleaner, is connected, for third dedusting with cooler gas outlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520808228.3U CN205073836U (en) | 2015-10-19 | 2015-10-19 | Directly reduced iron gas base shaft furnace furnace roof gas dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520808228.3U CN205073836U (en) | 2015-10-19 | 2015-10-19 | Directly reduced iron gas base shaft furnace furnace roof gas dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205073836U true CN205073836U (en) | 2016-03-09 |
Family
ID=55426277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520808228.3U Active CN205073836U (en) | 2015-10-19 | 2015-10-19 | Directly reduced iron gas base shaft furnace furnace roof gas dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205073836U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113893620A (en) * | 2021-11-18 | 2022-01-07 | 中钢设备有限公司 | Finished product dust removal method and device for direct reduced iron |
-
2015
- 2015-10-19 CN CN201520808228.3U patent/CN205073836U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113893620A (en) * | 2021-11-18 | 2022-01-07 | 中钢设备有限公司 | Finished product dust removal method and device for direct reduced iron |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |