CN1069905A - Purifying method for boiler fume and equipment thereof - Google Patents
Purifying method for boiler fume and equipment thereof Download PDFInfo
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- CN1069905A CN1069905A CN 92103594 CN92103594A CN1069905A CN 1069905 A CN1069905 A CN 1069905A CN 92103594 CN92103594 CN 92103594 CN 92103594 A CN92103594 A CN 92103594A CN 1069905 A CN1069905 A CN 1069905A
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Abstract
The present invention relates to combustion products---cigarette or treatment of waste gas method and apparatus.Adopt flue gas shunting, dust removal by filtration, spray mixed flow, will purify dust discharge and once finish.Employing W shape, V-arrangement and triangle vertical direction, horizontal direction are arranged the filter multiple times of filtration of multiple filter disc composition and are repeatedly sprayed mixed flow, also are provided with 1.5～2kg/cm
2Spray water resistance, it is poor to change the exchange interaction district, in and pernicious gas, water, gas, dirt is mixed to touch aggegation.Its equipment mainly by filter, spray flow mixing device, slow resistance diverter, moisture trap, medicine liquid controller, seal dust unloading wheel etc. automatically and form.Be applicable to the high purification of boiler smoke dedusting or atmospheric environment gas.
Description
The present invention relates to combustion products-cigarette or treatment of waste gas method and apparatus.
Boiler flue gas purification adopts wet processing more at present, as the combined wet scrubber of Chinese patent 2050933U, is made up of tower body, pipeline, blower fan and the water bath of installing from bottom to top in tower, two layer screen, shower nozzle, eddy flow plate etc.Purification method is that dusty gas at first enters tower body after water-bath by pipeline, dusty gas and the foams mix that splashes, after purify through sieve plate, again through spray, gas enters the eddy flow plate makes gas-liquid separation, gas is discharged from pipeline.
Chinese patent 1035715A boiler smoke dust-removing and desulfurization process and equipment thereof, technology comprises flue-gas dust-removing and desulfurization and two subsystems of recirculated water sulphur removal, capital equipment is a dedusting and desulfurizing tower, boiler smoke at first enters dedusting and desulfurizing tower, separate through atomizing, convergent-divergent, crash panel dedusting, screen dusting, dewatering plate dehydration divide gas.Sulphurous water flows into purification process withdrawal water such as neutralizing tank neutralizes, concentrates, filtration and utilizes.
A Chinese patent 2050933U dedusting can not be removed pernicious gas.Chinese patent 1035715A can dedusting and releasing sulfurous gas.But complex process, equipment is many.
The purpose of this invention is to provide a kind of boiler that is applicable to once finishes dedusting and removes SO
2Deng the purification method of pernicious gas, the method simply just, device structure is reasonable, and is easy to maintenance.
The present invention realizes like this.Its method is that flue gas is at first through spraying cooling, pass through the slow resistance diverter of setting again, the gas that pressure is concentrated slows down pressure and flow velocity is done multidirectional shunting diffusion, enter filter, being the filtration that the filter disc of W or V-arrangement forms by curved surface flows to along flue gas is changed, the dust of big proportion is obstructed, separation comes off, little dust and fine solid particle fall gradually because the sealing water that the filter disc curved surface forms is honest and clean and the gluing of surperficial moisture film, and have finished first class purification, enter spray equipment and filter again and carry out secondary purification, also can repeatedly purify, after gas-water separation, gas discharges from the gas outlet.Grit moisture aggregation dust unloading wheel is discharged automatically.
Embodiment provides vertical and horizontal two kinds of multistage purification equipment.
Wherein, in and the soup of sulfur dioxide gas use content 35～40% sodium hydroxide solution, in and carbon dioxide use calcium hydroxide emulsion, soup is at 1.5～2kg/cm
2The pressure injection water resistance, (water resistance is resistance depositing dust dust and removes and to separate the pernicious gas double action).
Embodiment provides vertical and horizontal two kinds of multistage purification equipment.
Be described further below in conjunction with drawings and Examples:
Fig. 1 vertical equipment overall schematic.
Fig. 2 vertical equipment air inlet and unload dirt device profile.
Fig. 3 vertical equipment air inlet and unload dirt device front view.
Fig. 4 vertical equipment filter and spray flow mixing device profile.
Fig. 5 vertical equipment moisture trap, elbow and pipeline profile.
Fig. 6 vertical equipment dress W shape strainer filter schematic diagram.
Fig. 7 vertical equipment dress V-arrangement strainer filter schematic diagram.
Fig. 8 vertical equipment moisture trap schematic diagram.
Vertical, the horizontal equipment slow resistance diverter schematic diagram of Fig. 9.
Vertical, the horizontal equipment of Figure 10 hydraulic automatic switch and soup injector structures schematic diagram.
Vertical, the horizontal equipment water of Figure 11 is derived from moving construction of switch schematic diagram.
Vertical, the horizontal equipment water of Figure 12 is derived from moving switch motion schematic diagram.
Vertical, the horizontal equipment of Figure 13 is with not being derived from moving switch plate schematic diagram.
The horizontal equipment overall schematic of Figure 14.
The horizontal equipment air inlet of Figure 15 front view.
The horizontal equipment of Figure 16 is vertically arranged the filter schematic diagram.
The horizontal equipment level of Figure 17 is arranged the filter schematic diagram.
The horizontal equipment moisture trap of Figure 18 schematic diagram.
Vertical, the horizontal equipment dust unloading wheel of Figure 19 schematic diagram.
Boiler smoke multistage purification method of the present invention is once finished by flue gas shunting, dust removal by filtration, the desulfurization of spray mixed flow, dust discharging, it is characterized in that carrying out after flue gas enters cleaning equipment.
Spraying cooling: flue gas enters by the shower nozzle spraying cooling.
The shunting depositing dust: flue gas makes the multidirectional shunting diffusion of flue gas, slows down flow velocity and pressure through slow resistance diverter.
The desulfurization of spray mixed flow: flue gas is provided with 1.5～2kg/cm through the spray flow mixing device2Spray in the water resistance and pernicious gas, it is poor to change the exchange interaction district, water, gas, the mixed tactile aggegation of dirt.
Dust removal by filtration: flue gas is W shape or V-arrangement filter disc group obstruction and enclosed water curtain dedusting through curved surface.
The desulfurization of secondary spraying mixed flow, dust removal by filtration can repeat 2～5 times.
Gas-water separation: the plate that sets obstacles divides dried up, gas, is cleaned flue gas and discharges from the gas outlet.
Automatically unload dirt: the dust moisture aggregation that will hinder filter is discharged automatically to dust unloading wheel.
Embodiment 1(is referring to Fig. 1): a kind of Vertical Combination type flue gas ash removal multistage purification equipment, comprise tower body (1), elbow (2), pipeline (3), unload dirt device (4), spray flow mixing device (5), filter (6) and blower fan, it is characterized in that being provided with slow resistance diverter (7), medicine liquid controller (8) and moisture trap (9), slow resistance diverter is installed in the air inlet, medicine liquid controller is installed in the air inlet lateral wall, and moisture trap is installed in the tower body elbow; Filter is installed in the tower body middle part, and quantity is 2～5, is equipped with the spray flow mixing device above the filter at each; Unloading the dirt device and be installed in below the tower body air inlet, is an automatic sealing dust unloading wheel (10), is the wheel (seeing Figure 19) of a band bucket.
Enter cleaning equipment referring to Fig. 2 flue gas, slow down flow velocity and pressure through slow resistance diverter (7), flue gas and do multidirectional shunting diffusion, again by in the soup spray and pernicious gas, enter filter (6) (see figure 4) flue gas then and change and flow to, dust is obstructed to come off and finishes first-stage preliminary and purify; Flue gas enters next stage soup spray mixed flow, makes dust, gas, water obtain fully mixing touching aggegation, and pernicious gas is neutralized once more, enters second filter then and carries out final dusting and change flue gas flow direction promptly finishing secondary purification.Flue gas enters spray equipment and filter successively again, finishes three grades of purifications.The (see figure 5) flue gas again in spray equipment and remaining pernicious gas, then through moisture trap, make gas, moisture from, the flue gas that is cleaned is discharged from the gas outlet through pipeline.
See Fig. 6 be equipped with the filter structure schematic representation of W shape filter disc and filter structure schematic representation that Fig. 7 is equipped with the V-arrangement filter disc as can be known the filter disc curved surface of filter be W shape or V-arrangement.
The filter that W shape filter disc is housed as can be known referring to Fig. 4 is used alternatingly with the filter that the V-arrangement filter disc is housed.
The filter disc curved surface of moisture trap is V-shaped as can be known referring to Fig. 8.
Referring to Fig. 9 (a) (b) as can be known in the middle of the slow resistance diverter tetrahedron (11), skin trapezoidal by two and that two blocks of triangle steel plates are formed be equipped with four trapezoidal filter discs (12), they respectively with each parallel sided of tetrahedron.
Form by spray tank (13), hydraulic automatic switch (14) and soup injector (15) referring to Fig. 3 medicine liquid controller.
Referring to Figure 10 as can be known hydraulic automatic switch by controller housing (16), overcoat (17), leakproof gland (18), valve rod (19), adjust screw (20) and UNICOM's mouth (21) is formed, wherein there is an annular groove (22) at the valve rod middle part, between valve rod and adjustment screw back-moving spring (26) and spring base (27) is housed; The soup injector is made up of injector housing (23), nozzle (24), adjustment cap (25) and UNICOM's mouth (21).Soup flows into from the A mouth, and the annular groove on valve rod is regulated adjustment screw (20) valve rod is moved forward and backward to soup injector B mouth, changes the relative position of annular groove and UNICOM's mouth, the control medicinal liquid flow.Water flows into from soup injector C mouth, mixes through nozzle (24) and soup, and mixed solution is delivered to each shower nozzle place by water pipe (28), and its solution concentration can be regulated the adjustment cap and be determined.
Be equipped with the automatic switch of water source of forming by pneumatic plate (29), pneumatic plate axle (30), connecting plate (31), drive link (32), pillar (33), switch plate (34) and water joint door (35) at the place, gas outlet as can be known referring to Figure 11～Figure 13, pneumatic plate and connecting plate are fixed on the pneumatic plate axle, connecting plate is connected by drive link with switch plate, drive link one end can slide along the microscler hole slot (36) of connecting plate, and drive link other end toggle switch sheet rotates.Rotate when starting the pneumatic plate of blower fan, the connecting plate that is fixed on the pneumatic plate axle also rotates thereupon, and it makes drive link one end slide along the microscler hole slot of connecting plate, the other end toggle switch sheet rotating opening water joint door of drive link.When blower fan stops, pneumatic sheet reset drives the connecting plate backward rotation, makes drive link toggle switch sheet in the other direction, closes water joint door.
Can see that referring to Fig. 2, Fig. 5 elbow button crook and pipe side wall are equipped with wear strip (46).
Shower nozzle in the present embodiment can be selected screw type or bowl-type shower nozzle for use.
Embodiment 2(is referring to Figure 14): a kind of horizontal combined flue gas ash removal multistage purification equipment, comprise casing (37), box frame (38), unload dirt device (39).Spray flow mixing device (40), filter (41) and blower fan is characterized in that being provided with slow resistance diverter (7), spray tank (42), hydraulic automatic switch (14), soup injector (15) and moisture trap (47).Slow resistance diverter is installed in the spray flow mixing device, and moisture trap is installed in the gas outlet.The soup injector is placed on the box frame.3～5 filters are housed in the casing, and each filter top is equipped with shower nozzle; Be provided with the spray flow mixing device between two filters; Unloading the dirt device and be placed in lower box, is an automatic sealing dust unloading wheel (10), is the wheel (seeing Figure 19) of a band bucket.
Referring to Figure 14, Figure 15, flue gas enters clarifier by spraying cooling, change direction through filter, slow resistance diverter depositing dust, flue gas, slow down pressure and flow velocity and do multidirectional diffusion, again through the desulfurization of soup spray mixed flow, in and pernicious gas, change that to take off the dirt district poor, make dust, gas, water obtain the fully mixed aggegation of touching.Carry out final dusting and change flue gas flow direction through second filter then, again through the desulfurization of secondary soup spray mixed flow, in and pernicious gas, change that to take off the dirt district poor, dust, gas, water are mixed once more touch aggegation, carry out dedusting for the third time and change flue gas flow direction through filter again, finish three grades of purifications, after moisture trap, make gas, moisture from, the flue gas that is cleaned is discharged from outlet, and dust and waste water flow into and unloads in the dirt device, discharges automatically.
Referring to Figure 15 as can be known the filter disc of filter be the filter disc layer that equidistantly rearranges by the V-shaped angle bar of curved surface (43), each filter is provided with 4～5 groups of filter disc layers.
Now equidistantly arrange or vertical direction is equidistantly arranged V-arrangement angle bar level side on the filter disc layer as can be known referring to Figure 16, Figure 17.
Horizontal direction will be housed in the casing equidistantly arranges the filter of filter disc layer and vertical direction is housed and equidistantly arrange the filter of filter disc layer and be used alternatingly.
, be installed in the gas outlet by two rotating vanes of forming by S shape blade (44) and sharf (45) referring to Figure 18 moisture trap.
Slow resistance diverter, hydraulic automatic switch, soup injector, automatic switch of water source are all identical with embodiment 1 Vertical Combination type flue gas ash removal multistage purification equipment.Blower fan is contained in outside the outlet and docks with the gas outlet.
Method of the present invention is easy, efficient is high, and device structure is reasonable, occupation of land is little, easy to maintenance, after tested per hour 1000 kilograms of water consumption, purification granularity 0.002 μ/φ, degree of purification 98%, SO
2Cleanliness 100%, SR 78mmH
2O.
Claims (11)
1, a kind of boiler smoke multistage purification method is once finished by flue gas shunting, dust removal by filtration, the desulfurization of spray mixed flow, dust discharging, it is characterized in that carrying out after flue gas enters cleaning equipment:
Spraying cooling: flue gas enters and passes through spraying cooling;
The shunting depositing dust: flue gas (makes the multidirectional shunting diffusion of flue gas, slows down flow velocity and pressure through slow resistance shunting;
The desulfurization of spray mixed flow: flue gas is provided with 1.5～2kg/cm through the spray flow mixing device
2Spray in the water resistance and harmful gas, it is poor to change the exchange interaction district, and water, gas, dirt mix and touches aggegation;
Dust removal by filtration: flue gas is W shape or V-arrangement filter disc group obstruction and sealing water curtain for dust-collecting through curved surface.
The desulfurization of secondary spraying mixed flow, dust removal by filtration can repeat 2～5 times;
Gas-water separation: the plate that sets obstacles divides dried up, gas, is cleaned flue gas and discharges from the gas outlet.
Automatically unload dirt: the dust moisture aggregation that will hinder filter is discharged automatically to dust unloading wheel.
2, a kind of Vertical Combination type flue gas ash removal multistage purification equipment, comprise tower body, elbow, pipeline, unload the dirt device, spray flow mixing device, filter and blower fan, it is characterized in that being provided with slow resistance diverter, spray tank, hydraulic automatic switch, soup injector and moisture trap, slow resistance diverter is installed in the air inlet, moisture trap is installed in the tower body elbow, and spray tank, hydraulic automatic switch and soup injector are installed in the air inlet lateral wall; It is 2～5 that filter is installed in tower body middle part quantity, at each the spray flow mixing device that has shower nozzle is installed above the filter; Unloading the dirt device and be installed in below the tower body air inlet, is an automatic sealing dust unloading wheel, is the wheel of a band bucket.
3, by the described cleaning equipment of claim 2, it is characterized in that the filter disc curved surface of filter is W shape or V-arrangement, the filter that W shape filter disc is housed is used alternatingly with the filter that the V-arrangement filter disc is housed.
4, by the described cleaning equipment of claim 2, it is characterized in that the filter disc curved surface of moisture trap is V-shaped.
5, a kind of horizontal combined flue gas ash removal multistage purification equipment, comprise casing, box frame, unload the dirt device, spray flow mixing device, filter and blower fan, it is characterized in that being provided with slow resistance diverter, spray tank, hydraulic automatic switch, soup injector and moisture trap, slow resistance diverter is installed in the spray flow mixing device, moisture trap is installed in the gas outlet, spray tank is placed in above the casing, and hydraulic automatic switch and soup injector are placed on the box frame; 3～5 filters are housed in the casing, and each filter top is equipped with shower nozzle; Be provided with the spray flow mixing device between two filters; Unloading the dirt device and be placed in lower box, is an automatic sealing dust unloading wheel, is the wheel of a band bucket.
6, by the described cleaning equipment of claim 5, the filter disc that it is characterized in that filter is the filter disc layer that is equidistantly rearranged by the V-shaped angle bar of curved surface, and each filter is provided with 4～5 groups of filter disc layers.
7, by claim 5,6 described cleaning equipments, it is characterized in that V-arrangement angle bar horizontal direction on the filter disc layer is equidistant arranges or vertical direction is equidistantly arranged, and horizontal direction is housed equidistantly arranges the filter of filter disc layer and vertical direction is housed and equidistantly arrange the filter of filter disc layer and be used alternatingly.
8, by the described cleaning equipment of claim 5, it is characterized in that moisture trap is two rotating vanes of being made up of S shape blade and sharf.
9, by claim 2,5 described cleaning equipments, it is characterized in that in the middle of the slow resistance diverter that by two trapezoidal and two tetrahedrons that the triangle steel plate is formed, skin is equipped with four trapezoidal filter discs, they respectively with each parallel sided of tetrahedron.
10, by claim 2,5 described cleaning equipments, it is characterized in that hydraulic automatic switch is made up of controller housing, overcoat, leakproof gland, valve rod, adjustment screw and UNICOM's mouth, an annular groove is wherein arranged in the middle part of the valve rod; Between valve rod and adjustment screw, back-moving spring and spring base are housed; The soup injector is made up of injector housing, nozzle, adjustment cap and UNICOM's mouth.
11, by claim 2,5 described cleaning equipments, it is characterized in that being equipped with by pneumatic plate, pneumatic plate axle, connecting plate, drive link, pillar, switch plate and a water joint automatic switch of water source that constitutes at the place, gas outlet, the pneumatic utmost point and connecting plate are fixed on the pneumatic plate axle, connecting plate is connected by drive link with switch plate, drive link one end can slide along the microscler hole slot of connecting plate, and drive link other end toggle switch sheet rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92103594 CN1069905A (en) | 1992-05-19 | 1992-05-19 | Purifying method for boiler fume and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92103594 CN1069905A (en) | 1992-05-19 | 1992-05-19 | Purifying method for boiler fume and equipment thereof |
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| Publication Number | Publication Date |
|---|---|
| CN1069905A true CN1069905A (en) | 1993-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 92103594 Pending CN1069905A (en) | 1992-05-19 | 1992-05-19 | Purifying method for boiler fume and equipment thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988888A (en) * | 2010-08-31 | 2011-03-23 | 吕军 | Method for detecting cleanness of multiple sampling points automatically and continuously |
| CN104117256A (en) * | 2013-04-28 | 2014-10-29 | 陈卫星 | Hydrolysis neutralization method for toxic flue dust in chemical gas |
| CN105080246A (en) * | 2015-09-11 | 2015-11-25 | 乐山市红斯玛环保应急装备有限公司 | Gas grid washing mixer and method |
| CN106076046A (en) * | 2016-08-22 | 2016-11-09 | 苏州云白环境设备股份有限公司 | Mechanical type water filtration dedusting deodorizing device |
| CN106237763A (en) * | 2016-08-22 | 2016-12-21 | 苏州云白环境设备股份有限公司 | The using method of mechanical type water filtration dedusting deodorizing device |
-
1992
- 1992-05-19 CN CN 92103594 patent/CN1069905A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988888A (en) * | 2010-08-31 | 2011-03-23 | 吕军 | Method for detecting cleanness of multiple sampling points automatically and continuously |
| CN101988888B (en) * | 2010-08-31 | 2012-08-29 | 吕军 | Method for detecting cleanness of multiple sampling points automatically and continuously |
| CN104117256A (en) * | 2013-04-28 | 2014-10-29 | 陈卫星 | Hydrolysis neutralization method for toxic flue dust in chemical gas |
| CN105080246A (en) * | 2015-09-11 | 2015-11-25 | 乐山市红斯玛环保应急装备有限公司 | Gas grid washing mixer and method |
| CN106076046A (en) * | 2016-08-22 | 2016-11-09 | 苏州云白环境设备股份有限公司 | Mechanical type water filtration dedusting deodorizing device |
| CN106237763A (en) * | 2016-08-22 | 2016-12-21 | 苏州云白环境设备股份有限公司 | The using method of mechanical type water filtration dedusting deodorizing device |
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