CN204093227U - The static blocker of glass furnace denitration - Google Patents
The static blocker of glass furnace denitration Download PDFInfo
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- CN204093227U CN204093227U CN201420510630.9U CN201420510630U CN204093227U CN 204093227 U CN204093227 U CN 204093227U CN 201420510630 U CN201420510630 U CN 201420510630U CN 204093227 U CN204093227 U CN 204093227U
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- catch net
- injection tube
- deashing
- filter box
- glass furnace
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Abstract
The utility model discloses the static blocker of a kind of glass furnace denitration, comprise filter box, be arranged at the deashing casing below filter box, the first catch net and the second catch net is provided with in filter box, first catch net and the second catch net all slide with filter box and arrange, control first catch net is provided with in filter box, the automatic control control system that second catch net alternately slides, first catch net front and the second catch net rear are provided with difference gauge, difference gauge is connected with automatic control system, the first injection tube and the second injection tube is provided with in deashing casing, first injection tube is all connected with deashing vapour source by gas pipeline with the second injection tube, and the first injection tube and the second injection tube are all just to air inlet, first catch net and the second catch net hocket deashing process, in the process of deashing, all the time there is a catch net in running order, flakes particle in flue gas is avoided to enter catalyst below, thus improve the service life of catalyst.
Description
Technical field
The utility model relates to the static blocker of a kind of glass furnace denitration.
Background technology
At present at the degradating trend exacerbating region acid rain fast of China's nitrogen oxide emission.Result of study show, the increase of nitrogen oxide emission makes China's Acid Rain Pollution by sulfuric acid type to sulfuric acid and the compound transformation of nitric acid, nitrate ion in acid rain proportion from 1/10 of the 80's of last century progressively rise in recent years 1/3.Atmospheric nitrogen oxide can affect the oxidisability of air, causes the problems such as the increase of photochemical pollution, secondary aerosol species, gray haze, has arrived the stage of improvement.
Glass furnace is the important component part of discharged nitrous oxides, a large amount of research work has been done in NO discharge capacity both at home and abroad in reduction glass furnace waste gas, and achieving impressive progress, the control measures of the NOx in glass furnace waste gas is roughly divided into a measure and secondary measure.
The plurality of advantages such as SCR technology (SCR) is high with its denitration efficiency, stable and reliable operation at home and abroad power industry are widely applied.But have the alabastrine dust of many sheets due in the flue gas of discharging at glass furnace, this dust can be very fast by the clogging of pores of capillary tubing catalyst, is that catalyst lost efficacy very soon, is therefore necessary to carry out pretreatment to the flue gas entered before Cuiization reaction.
Summary of the invention
The purpose of this utility model is to overcome the defect existed in prior art, there is provided a kind of glass furnace denitration static blocker, flakes sticky dust in process glass furnace denitration flue gas, alleviates the pressure of catalyst below, the service life of the raising catalyst of high degree.
For achieving the above object, the technical solution of the utility model is the static blocker of a kind of glass furnace denitration of design, comprise filter box, be arranged at the deashing casing be connected below described filter box and with by dividing plate, described filter box side offers air inlet, its opposite side offers air outlet, the first catch net and the second catch net is vertically installed with in described filter box, the first described catch net and the second described catch net are set up in parallel, the first described catch net and the second described catch net all vertically slide with described filter box and arrange, described dividing plate offers corresponding perforation, the first catch net described in control is provided with in described filter box, the automatic control control system that the second described catch net alternately slides, the first described catch net front and the second catch net rear are provided with difference gauge, described difference gauge is connected with described automatic control system, the first injection tube and the second injection tube is provided with in described deashing casing, the first described injection tube is all connected with deashing vapour source by gas pipeline with the second described injection tube, the first described injection tube is positioned on rear side of the first described catch net, the second described injection tube is positioned at the rear side of the second described catch net, and the first injection tube and the second described injection tube are all just to described air inlet.
As preferably, described automatic control system comprises the first variable-frequency electric cucurbit be connected with the first described catch net, the second variable-frequency electric cucurbit be connected with the second described catch net, the first described variable-frequency electric cucurbit is all connected with PLC with the second described variable-frequency electric cucurbit, and described difference gauge is connected with described PLC.
During in order to ensure that catch net moves up and down, inclined running route is not blown by flue gas stream, as preferably, two guide rails extended along above-below direction are provided with in described filter box, the first described catch net and the second described catch net include framework and are arranged at the steel wire on described framework, described framework slides up and down along described guide rail, described framework is provided with hanging apparatus, and described device for hoisting is connected with the first described variable-frequency electric cucurbit or the second described variable-frequency electric cucurbit.
Thorough in order to ensure catch net deashing, as preferably, the first described injection tube and the second described injection tube offer the some deashing apertures of a row along its axial distribution, the spacing of described deashing aperture is 35-50mm, all described deashing aperture area sums are the 85-90% of described first injection tube and the second described injection tube internal diameter, 60% of diameter >=all described deashing aperture area sums of described gas pipeline.
Thorough in order to ensure catch net deashing, as preferably, the steam pressure≤1MPa of the deashing vapour source of 0.5MPa≤described.
In order to keep deashing casing and filter box negative pressure basically identical, as preferably, described filter box is connected by the barometric pipe of bending with the outside of described deashing casing, and described barometric pipe is near described air inlet side.
In order to ensure that catch net can move up and down smoothly, as preferably, there is between described filter box and described deashing casing the gap that the first catch net described in guarantee and the second described catch net slide up and down smoothly.
Catch net is changed in order to process emergency, as preferably, the upper end of described filter box is provided with two top blind flange, described top blind flange lays respectively at the top of the first described catch net and the second described catch net correspondence position, and described top blind flange is dismantled mutually with described filter box and is connected.
Advantage of the present utility model and beneficial effect are: the first catch net and the second catch net hocket deashing process, in the process of deashing, all the time there is a catch net in running order, avoid flakes particle in flue gas to enter catalyst below, thus improve the service life of catalyst.
Accompanying drawing explanation
Fig. 1 is the utility model normal operating condition schematic diagram;
Fig. 2 is the utility model deashing view one;
Fig. 3 is the utility model deashing view two;
Fig. 4 is that the utility model changes catch net view.
In figure: 1, filter box; 2, deashing casing; 3, air inlet; 4, air outlet; 5, the first catch net; 6, the second catch net; 7, the first injection tube; 8, the second injection tube; 9, barometric pipe; 10, top blind flange; 11, dividing plate.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
As Figure 1-Figure 4, the static blocker of a kind of glass furnace denitration, comprise filter box 1, be arranged at the deashing casing 2 be connected below filter box 1 and with by dividing plate, filter box 1 side offers air inlet 3, its opposite side offers air outlet 4, the first catch net 5 and the second catch net 6 is vertically installed with in filter box 1, first catch net 5 and the second catch net 6 are set up in parallel, first catch net 5 and the second catch net 6 all vertically slide with filter box 1 and arrange, dividing plate offers corresponding perforation, control first catch net 5 is provided with in filter box 1, the automatic control control system that second catch net 6 alternately slides, first catch net 5 front and the second catch net 6 rear are provided with difference gauge, difference gauge is connected with automatic control system, the first injection tube 7 and the second injection tube 8 is provided with in deashing casing 2, first injection tube 7 is all connected with deashing vapour source by gas pipeline with the second injection tube 8, first injection tube 7 is positioned on rear side of the first catch net 5, second injection tube 8 is positioned at the rear side of the second catch net 6, and the first injection tube 7 and the second injection tube 8 are all just to air inlet 3, automatic control system comprises the first variable-frequency electric cucurbit be connected with the first catch net 5, the the second variable-frequency electric cucurbit be connected with the second catch net 6, first variable-frequency electric cucurbit is all connected with PLC with the second variable-frequency electric cucurbit, difference gauge is connected with PLC.
Operation principle illustrates: under normal operating conditions, flue gas stream passes through the first catch net 5 and the second catch net 6 with the speed of 6-8m/s, large stretch of flakes sticky dust in flue gas is blocked net to be stopped and is attached on catch net, along with the carrying out of denitration, flakes dust on catch net is cumulative, before and after catch net, resistance is increasing, when difference gauge detects that Resistance Value reaches setting (such as 400 handkerchiefs), onsite alarming device starts, automatic controlling system first catch net 5 slowly runs downwards, meanwhile, soot cleaning system is opened automatically, blow off the dust stratification sticked on the first catch net 5, after first catch net 5 cleans out, first catch net 5 moves up to operating position, meanwhile the second catch net 6 moves downward and carries out deashing process, all catch nets all clean out, after differential pressure is normal, soot cleaning system is out of service, in the process of catch net by deashing, a catch net will be had eventually in running order, flakes particle in flue gas is avoided to enter catalyst below, poison catalyst, deashing adopts steam deashing, this blocker operating temperature is between 350 DEG C to 420 DEG C, this can ensure the quality of steam, simultaneously, steam pipeline system also has drain valve, in time condensed water is transferred out.
In order to ensure that catch net is not blown inclined running route by flue gas stream, two guide rails extended along above-below direction are provided with in filter box 1, first catch net 5 and the second catch net 6 include framework and are arranged at the steel wire on framework, framework slides up and down along guide rail, framework is provided with hanging apparatus, and device for hoisting is connected with the first variable-frequency electric cucurbit or the second variable-frequency electric cucurbit.
The scheme optimized in the present embodiment is, first injection tube 7 and the second injection tube 8 offer the some deashing apertures of a row along its axial distribution, the spacing of deashing aperture is 35-50mm, all deashing aperture area sums are the 85-90% of described first injection tube 7 and the second injection tube 8 internal diameter, 60% of diameter >=all deashing aperture area sums of gas pipeline, steam pressure≤the 1MPa of 0.5MPa≤deashing vapour source, the too low dust stratification of steam pressure is difficult to cleaning, the too high steel wire easily blowing bad catch net of steam pressure, in addition because dust stratification is very easily water-soluble, there is certain caking property, need to use high-temperature steam to carry out blowing ash process, and can not moisture be contained in steam.
As Figure 1-Figure 4, the scheme that in the present embodiment, another is optimized is, filter box 1 is connected by the barometric pipe 9 of bending with the outside of deashing casing 2, barometric pipe 9 is near air inlet 3 side, when catch net replaces deashing, when can ensure that air-flow turns back to filter box 1 from deashing casing 2, under the interception being still in catch net, barometric pipe 9 is when injection tube carries out deashing process, in deashing casing 2, increasing pressure is high, if can not pressure release be carried out, ash-removal effect must be caused to be deteriorated, deashing casing 2 can be kept basically identical with negative pressure in filter box 1 by barometric pipe 9, improve ash-removal effect.
In the present embodiment, a scheme optimized is have the gap that guarantee first catch net 5 and the second catch net 6 slide up and down smoothly between filter box 1 and deashing casing 2 again.
As shown in Figure 4, during shutdown of boiler, need to keep in repair catch net or change, now catch net is pulled out in filter box 1, if in case of emergency can not blowing out in time, and when needing to change catch net, proposing another prioritization scheme in the present embodiment is, the upper end of filter box 1 is provided with two top blind flange 10, top blind flange 10 lays respectively at the top of the first catch net 5 and the second catch net 6 correspondence position, top blind flange 10 is dismantled with filter box 1 phase and is connected, in an emergency situation, when changing catch net, after catch net being hung out filter box 1, breach is covered by top blind flange 10, ensure that filter box 1 normally runs.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. the static blocker of glass furnace denitration, it is characterized in that: comprise filter box, be arranged at the deashing casing be connected below described filter box and with by dividing plate, described filter box side offers air inlet, its opposite side offers air outlet, the first catch net and the second catch net is vertically installed with in described filter box, the first described catch net and the second described catch net are set up in parallel, the first described catch net and the second described catch net all vertically slide with described filter box and arrange, described dividing plate offers corresponding perforation, the first catch net described in control is provided with in described filter box, the automatic control control system that the second described catch net alternately slides, the first described catch net front and the second catch net rear are provided with difference gauge, described difference gauge is connected with described automatic control system, the first injection tube and the second injection tube is provided with in described deashing casing, the first described injection tube is all connected with deashing vapour source by gas pipeline with the second described injection tube, the first described injection tube is positioned on rear side of the first described catch net, the second described injection tube is positioned at the rear side of the second described catch net, and the first injection tube and the second described injection tube are all just to described air inlet.
2. the static blocker of glass furnace denitration as claimed in claim 1, it is characterized in that: described automatic control system comprises the first variable-frequency electric cucurbit be connected with the first described catch net, the second variable-frequency electric cucurbit be connected with the second described catch net, the first described variable-frequency electric cucurbit is all connected with PLC with the second described variable-frequency electric cucurbit, and described difference gauge is connected with described PLC.
3. the static blocker of glass furnace denitration as claimed in claim 2, it is characterized in that: in described filter box, be provided with two guide rails extended along above-below direction, the first described catch net and the second described catch net include framework and are arranged at the steel wire on described framework, described framework slides up and down along described guide rail, described framework is provided with hanging apparatus, and described device for hoisting is connected with the first described variable-frequency electric cucurbit or the second described variable-frequency electric cucurbit.
4. the static blocker of glass furnace denitration as claimed in claim 1, it is characterized in that: the first described injection tube and the second described injection tube offer the some deashing apertures of a row along its axial distribution, the spacing of described deashing aperture is 35-50mm, all described deashing aperture area sums are the 85-90% of described first injection tube and the second described injection tube internal diameter, 60% of diameter >=all described deashing aperture area sums of described gas pipeline.
5. the static blocker of glass furnace denitration as claimed in claim 1, is characterized in that: the steam pressure≤1MPa of the deashing vapour source of 0.5MPa≤described.
6. the static blocker of glass furnace denitration as claimed in claim 1, it is characterized in that: described filter box is connected by the barometric pipe of bending with the outside of described deashing casing, described barometric pipe is near described air inlet side.
7. the static blocker of glass furnace denitration as claimed in claim 1, is characterized in that: have the gap that the first catch net described in guarantee and the second described catch net slide up and down smoothly between described filter box and described deashing casing.
8. the static blocker of glass furnace denitration as claimed in claim 1, it is characterized in that: the upper end of described filter box is provided with two top blind flange, described top blind flange lays respectively at the top of the first described catch net and the second described catch net correspondence position, and described top blind flange is dismantled mutually with described filter box and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420510630.9U CN204093227U (en) | 2014-09-05 | 2014-09-05 | The static blocker of glass furnace denitration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420510630.9U CN204093227U (en) | 2014-09-05 | 2014-09-05 | The static blocker of glass furnace denitration |
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| CN204093227U true CN204093227U (en) | 2015-01-14 |
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| CN201420510630.9U Active CN204093227U (en) | 2014-09-05 | 2014-09-05 | The static blocker of glass furnace denitration |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076019A (en) * | 2016-07-23 | 2016-11-09 | 安徽乙地生态科技有限公司 | A kind of for waste gas purification process defecator |
| CN106694367A (en) * | 2016-12-02 | 2017-05-24 | 渤海大学 | Blocking and filtering device of catalyst |
| CN106984108A (en) * | 2017-04-08 | 2017-07-28 | 安徽盛运重工机械有限责任公司 | One kind alternating ash ejecting type bag-type dust collector |
| CN107261678A (en) * | 2017-08-18 | 2017-10-20 | 平潭诚信智创科技有限公司 | A kind of air cleaning unit being convenient to clean |
| CN108744923A (en) * | 2018-07-20 | 2018-11-06 | 江苏安纳泰环保科技有限公司 | A kind of desulphurization denitration high efficiency spray wash mill |
| WO2020015232A1 (en) * | 2018-07-17 | 2020-01-23 | 中建材环保研究院（江苏）有限公司 | Cement kiln scr denitration device with large particle ash intercepting device and process |
| CN112742127A (en) * | 2021-01-07 | 2021-05-04 | 唐军军 | Membrane type filtering equipment for industrial spray paint production waste gas |
-
2014
- 2014-09-05 CN CN201420510630.9U patent/CN204093227U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076019A (en) * | 2016-07-23 | 2016-11-09 | 安徽乙地生态科技有限公司 | A kind of for waste gas purification process defecator |
| CN106694367A (en) * | 2016-12-02 | 2017-05-24 | 渤海大学 | Blocking and filtering device of catalyst |
| CN106984108A (en) * | 2017-04-08 | 2017-07-28 | 安徽盛运重工机械有限责任公司 | One kind alternating ash ejecting type bag-type dust collector |
| CN107261678A (en) * | 2017-08-18 | 2017-10-20 | 平潭诚信智创科技有限公司 | A kind of air cleaning unit being convenient to clean |
| WO2020015232A1 (en) * | 2018-07-17 | 2020-01-23 | 中建材环保研究院（江苏）有限公司 | Cement kiln scr denitration device with large particle ash intercepting device and process |
| CN108744923A (en) * | 2018-07-20 | 2018-11-06 | 江苏安纳泰环保科技有限公司 | A kind of desulphurization denitration high efficiency spray wash mill |
| CN112742127A (en) * | 2021-01-07 | 2021-05-04 | 唐军军 | Membrane type filtering equipment for industrial spray paint production waste gas |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: 214400 Huamei Industrial Park, Gu Dong village, Gushan Town, Wuxi, Jiangsu, Jiangyin Patentee after: JIANGSU YIJIN ENVIRONMENTAL PROTECTION EQUIPMENT ENGINEERING CO., LTD. Address before: 214400 Huamei Industrial Park, Gu Dong village, Gushan Town, Wuxi, Jiangsu, Jiangyin Patentee before: Jiangsu Yijin Environmental Protection Technology Co.,Ltd. |