CN101391175A - Desulfurization dust collector for industrial furnace - Google Patents
Desulfurization dust collector for industrial furnace Download PDFInfo
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- CN101391175A CN101391175A CNA2008102152855A CN200810215285A CN101391175A CN 101391175 A CN101391175 A CN 101391175A CN A2008102152855 A CNA2008102152855 A CN A2008102152855A CN 200810215285 A CN200810215285 A CN 200810215285A CN 101391175 A CN101391175 A CN 101391175A
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Abstract
The invention discloses a desulfurization and dust removal device for an industrial furnace, the device has a desulfurization dust remover, and the desulfurization dust remover comprises a shell as well as a contact type cooling spray device, a drain pipe, a barrier cap and a water inlet pipe fixed on the shell. The shell is provided with a flue gas inlet, an annular bottom plate and an annular side plate. The contact type cooling spray device is a tube array contact type cooling spray device, and the tube array contact type cooling spray device has a tube array and a tube plate, each single pipe of the tube array penetrates through the corresponding tube hole in the tube plate, and is fixed on the tube plate, each single pipe of the tube array is vertically arranged and is parallel to other pipes, an opening is arranged at the lower end of the body of each single pipe, and a water inlet part is arranged at the upper end head of the pipe body. The invention has advantages that the desulfurization and dust removal efficiency of the device can reach above 98 percent, the equipment investment is less, the running cost and the energy consumption are low, and the device is suitable for large-area promotion and application.
Description
Technical field
The invention belongs to atmospheric environment protection equipment, be specifically related to a kind of desulfurization dust collector for industrial furnace.
Background technology
The industrial furnace combustion product has caused serious pollution to atmosphere, influenced human existence and quality of life, for example the sulphur in the industrial furnace fuel has formed acid rain in atmosphere, has caused the agriculture underproduction, the harmful small dust that industrial furnace is discharged influences human beings'health, contaminated environment.Therefore, countries in the world are more and more stricter to the emission limit set of various industrial furnaces, all worked out the industrial furnace discharge standard.
The dust arrester that industrial furnace is used mainly is divided three classes, one class is a dry-method dust-removal device, it is the gravity that utilizes flue dust, inertia force, centrifugal force or the electrostatic attraction that produces by means of external electrical field or through the effect of filtrate, with smoke catching, reach the purpose of udst separation flue gas, but this device can not be removed the pernicious gas in the flue gas; Another kind of is Wet-way dust-collector, it is to utilize water to do relative motion with flue gas in furnace cupola, in the contact process of the flue dust in the flue gas and pernicious gas molecule and water, the cohesion of the inertial collision that is taken place, obstruction effect, diffusion dissolution effect and hydrone, flue dust in the flue gas is mutually combined, progressively form bigger particle and be captured, pernicious gas in the flue gas is added in the water and is captured.Above-mentioned two class device dust removing effects are bad, and desulfuration efficiency is not high, and the ability of particularly removing microparticle is relatively poor.Also having a class is dried Wet-way dust-collector, and this device combines dry method dust and wet dedusting, has improved efficiency of dust collection, but there is the problem that equipment investment is big, energy consumption is high, operating cost is high in this composite set.
Furnace cupola is the traditional equipment of foundry enterprise, provides molten metal liquid for cast; Its principle is the heat melts metal that utilizes the coke burning to produce; Because maintenance and operating cost are low, there is the process of chemical carburetting simultaneously, up to the present, furnace cupola still is being extensive use of.But contain a large amount of harmful granule dusts and the oxide gas of sulfur-bearing in the flue gas that furnace cupola is discharged, had a strong impact on the additional resident's of Foundry Works living environment, all the time, the desulfurization and dedusting of furnace cupola is the key project of Foundry Works's environmental improvement, and many enterprises drop into the desulfurization and dedusting technology of great amount of manpower and fund exploitation furnace cupola.
The device that is used for the furnace cupola desulfurization and dedusting at present has two classes, one class is the water curtain dust arrester, a sprinkler head is set above furnace cupola, utilize the water under high pressure transverse jet to go out water curtain, when the high-temperature furnace gas of furnace cupola passes water curtain, bigger particle and water curtain collision suction and mixing with water flows into pollution discharge pond with water, and the part sulfur oxide is become sulfuric acid by the water absorption and separates from furnace gas in the furnace gas; Because the thickness of moisture film is little, this class dust arrester only can be removed bulky grain, and the microparticle in the furnace cupola flue gas and most of oxysulfide gas still enter in the atmosphere, and simultaneously, the water under high pressure that forms moisture film needs big energy resource consumption, and operating cost is higher.
The dust arrester of another kind of use is a composite set, with high-power air-introduced machine the flue gas of furnace cupola is at first introduced cyclone dust collector, utilizes the cooling effect and the dedusting effect of cyclone dust collector, removes the bulky grain in the flue gas, reduces flue-gas temperature; Then furnace gas is introduced sack cleaner, remove the molecule in the flue gas, again through water spray absorption portion sulfur dioxide, and further dedusting.This class dust arrester can be removed the deleterious particle in the furnace cupola flue gas, the part pernicious gas in removing smoke, but this class deduster is invested big power consumption height, operating cost height.
Indulge the above, the device or the dust removing effects that are used for the furnace cupola dedusting at present do not reach the discharge standard of country, and perhaps investment is big, the operating cost height, and medium and small foundry enterprise can't be born the dedusting cost.Meanwhile, people's environmental consciousness improves constantly, and is more and more higher to the emission request of Industrial Stoves such as furnace cupola, and country is working out more and more strict emission control standards.
Summary of the invention
The objective of the invention is to deficiency, a kind of not only good dedusting effect, desulfuration efficiency height are provided at above-mentioned desulfation dust-extraction device, and the desulfurization dust collector for industrial furnace that energy consumption is low, equipment investment is few and operating cost is low.
Total technical conceive of the present invention is: from top to bottom fully contacted with from the bottom to top the hot gas that results from Industrial Stoves as cooling water and carried out the exchange of energy and material by common water, purpose is to adopt less cooling water can adsorb more flue dust and sulfur dioxide.The one, by cooling water is disperseed and increases the distribution that the distance that flows changes cooling water as far as possible, the flow direction of control hot gas, the distance that flows and flowing velocity, and gas-liquid two-phase is fully contacted, in the process that both fully contact, flue dust and sulfur dioxide in the direct heat of adsorption gas of cooling water.The 2nd, carry out exchange heat by the multiple tracks device, utilize the means of phase transformation to carry out dedusting and desulfurization: the higher characteristics of temperature of utilizing the hot gas that just contacts before this with cooling water, make the part in the cooling water that sprays shape be vaporized into steam, both contain the gaseous mixture that flue gas contains steam and hot gas is become; After duct device cooling later, make steam phase transformation wherein become droplet at gaseous mixture, because steam mixes better with flue gas and sulfur dioxide gas before phase transformation, so in phase transformation, not only can effectively absorb a part of sulfur dioxide, and can adsorb the molecule in the flue gas expeditiously; Along with the continuous formation of droplet, after constantly aggregating into bigger drop and form current, a part wherein takes away contained sulfur dioxide and soot dust granule with the cooling water interflow again.
A kind of technical scheme that realizes the object of the invention is: a kind of desulfurization dust collector for industrial furnace, has desulfurizing dust-collector, this desulfurizing dust-collector comprises housing, is characterized in: also comprise the contact cooling sprayer, the blow-off pipe that all are fixed on the housing, stop cap and water inlet pipe; Housing has gas approach, annular bottom plate and annular side plate, and gas approach is positioned at the central authorities of annular bottom plate, and annular bottom plate and annular side plate are airtight to link together, and annular bottom plate is obliquely installed by low inside and high outside mode, and the housing upper end open; Stop that cap is the low inside and high outside structural member of upper surface; Contact cooling sprayer and stop that cap all is in the housing stops that cap is positioned at the below of contact cooling sprayer and is positioned at the central authorities of housing; The lower end of contact cooling sprayer and stop cap and the annular bottom plate of housing between the space be spray district; Water inlet pipe has 1～4, provides the into parts of water to the contact cooling sprayer when being to use; Blow-off pipe has 1～2, and blow-off pipe is in outside the housing, and its import is positioned at the minimum position of housing and communicates with the inner chamber of housing.
Above-mentioned contact cooling sprayer is a tubulation contact cooling sprayer, and this tubulation contact cooling sprayer has tubulation and 1～2 tube sheet; Every single tube of tubulation passes corresponding pore on the tube sheet, and is fixed on the tube sheet, and tube sheet is fixed on the annular side plate of housing; Every single tube of tubulation is parallel to each other and vertically is provided with, the equal opening of body upper and lower side of every single tube, and the upper end of these bodys is positioned at the top of tube sheet, and the upper end of body is provided with water entering section, and water entering section has water inlet; The wall of the top of the pipeline section that is positioned at the tube sheet below of these bodys is provided with the vapor liquid equilibrium mouth; The conical shell that is shaped as that stops cap, its vertex of a cone are positioned at the top.
The tube sheet of above-mentioned contact cooling sprayer is 2, is divided into upper perforated plate and the lower perforated plate that is positioned at the upper perforated plate below; Water inlet pipe is divided into 1 and goes up water inlet pipe and 1～3 following water inlet pipe; The part of last water inlet pipe is in enclosure interior, remainder is in hull outside, last water inlet pipe be in the top that part in the housing is positioned at upper perforated plate, and its delivery port is positioned at the central part top of upper perforated plate; Following water inlet pipe is in hull outside, and its delivery port is arranged on the housing and with the inner chamber of housing and communicates, and this delivery port is between upper perforated plate and lower perforated plate; Set water entering section is positioned at the upper perforated plate top on the upper end of the body of every single tube of tubulation; The gas balance mouth of every single tube of tubulation is positioned on the pipeline section of lower perforated plate below; The body and the upper perforated plate of every single tube of tubulation are sealedly and fixedly connected, and upper perforated plate is fixedlyed connected with the inner wall sealing of the annular side plate of housing; The body of every single tube of tubulation is weldingly fixed on the lower perforated plate, and leaves the gap between the part hole wall of the corresponding pore of every single tube and lower perforated plate; Lower perforated plate is weldingly fixed on the annular side plate of housing.
Above-mentioned desulfurizing dust-collector also comprises 1 air exhauster, and air exhauster is in the housing and is positioned at the upper end open place of housing.
The another kind of technical scheme that realizes the object of the invention is: a kind of desulfurization dust collector for industrial furnace, has desulfurizing dust-collector, this desulfurizing dust-collector comprises housing, is characterized in: also comprise water inlet pipe, blow-off pipe, water distributor, contact cooling sprayer and stop cap; The upper end open of housing; Housing has gas approach, annular bottom plate and annular side plate, and gas approach is positioned at the central authorities of annular bottom plate, the airtight below that links together and be positioned at annular side plate of annular bottom plate and annular side plate; Annular bottom plate is obliquely installed by low inside and high outside mode, and annular bottom plate is provided with the delivery port that is positioned at lowest part, and this delivery port is connected with the water inlet of blow-off pipe is airtight; Stop that cap is that down surface is conical structural member; Water distributor, contact cooling sprayer and stop that cap is according to being set in sequence in the housing from top to bottom; The delivery port of water inlet pipe is connected with the water inlet of water distributor is airtight; Water distributor comprises that header tank and water inlet are arranged on 6～12 outlet pipes on header tank top; The delivery port of each outlet pipe is towards the contact cooling sprayer.The space that is centered between the inner surface of the upper surface of the annular bottom plate of the lower end of contact cooling sprayer, the upper surface that stops cap, housing and the annular side plate of housing is the spray district.
Above-mentioned contact cooling sprayer is a tubulation contact cooling sprayer, and this tubulation contact cooling sprayer has tubulation and 2 tube sheets; 2 tube sheets are divided into upper perforated plate and the lower perforated plate that is positioned at the upper perforated plate below; Every single tube of tubulation is parallel to each other and vertically is provided with, the equal opening of body upper and lower side of every single tube, each single tube of tubulation passes on the upper perforated plate corresponding pore on corresponding pore and the lower perforated plate, the upper end of the body of every single tube is positioned at the top of upper perforated plate, and the lower end of the body of every single tube is positioned at the below of lower perforated plate; The body and the upper perforated plate of every single tube of tubulation are sealedly and fixedly connected, and upper perforated plate is fixedlyed connected with the inner wall sealing of the annular side plate of housing; The body of every single tube of tubulation also is weldingly fixed on lower perforated plate, and leaves the gap between the part hole wall of the corresponding pore of every single tube and lower perforated plate; Lower perforated plate is weldingly fixed on the annular side plate of housing; Comprise in the outlet pipe of water distributor that delivery port is in the upper perforated plate edge and at the upper water-out pipe above the upper perforated plate and comprise the lower discharging tube of delivery port between upper perforated plate and lower perforated plate.
Above-mentioned desulfurizing dust-collector comprises that also 6～20 are arranged in the spray district and are positioned at the eddy flow guide plate that stops the cap top; The shape of every eddy flow guide plate is identical, is a tetragonal plate, and its top edge is horizontal, inner edges and outward flange all form 90 ° of angles with top edge, and outward flange length is greater than the length of inward flange, and low inside and high outside skewed thereby lower limb is, inclination angle γ is 20～35 °; The plate body of each eddy flow guide plate is weldingly fixed on the annular side plate of housing by its outer ledge, and residing height and position is identical; On sustained height, the plate body of each eddy flow guide plate is 5～15 ° angle with the diametric(al) of the housing of its outer ledge of process, and the outer ledge of each eddy flow guide plate is according to being 20～40 ° angle setting with vertical direction, thereby go up at various height around a corresponding imaginary circle setting inside edge that makes each eddy flow guide plate, the magnitude range of this imagination diameter of a circle be housing diameter 20%～30%.
Above-mentioned desulfurizing dust-collector also comprises dissepiment net atomising device; Dissepiment net atomising device is arranged in the spray district and between contact cooling sprayer and eddy flow guide plate; Dissepiment net atomising device comprises that vertical parallel closely being arranged on the netted base plate of netted base plate and each atomizing cup form; Each atomizing cup constitutes by the diamond hole web plate coiled of steel is cylindric.
The above-mentioned cap that stops is the cap that stops that upper surface is provided with the current rotary part; Stop that cap comprises cap body and current rotary part; The current rotary part comprises truncated cone-shaped housing and 6～12 strip connecting plates that are weldingly fixed on the truncated cone-shaped housing lower surface, the strip connecting plate be shaped as involute shape, each strip connecting plate of current rotary part is centrosymmetric and is arranged on the truncated cone-shaped housing, and the current rotary part is weldingly fixed on the upper surface of cap body by the lower surface of its each connecting plate.The lower edge of truncated cone-shaped housing exceed the cap body apart from s be the cap body diameter 5%～10%.
Above-mentioned desulfurizing dust-collector also comprises 1 air exhauster, and air exhauster is in the housing and is positioned at the upper end open place of housing.
Good effect of the present invention is:
(1) contact spray cooling device of the present invention in use from it portion add cooling water, then flow out spray shape cooling water in its underpart, these spray shape cooling waters then enter the space of below when falling, flue gas at first is in contact with one another and sloughs a part of sulfur dioxide and remove a part of flue dust with spray shape cooling water after entering this space, make a part of cooling water vaporization becoming water vapour simultaneously, water vapour then is mixed into gaseous mixture with flue gas, gaseous mixture enters the contact spray cooling device and is in contact with one another and sloughs a part of sulfur dioxide in the gaseous mixture and remove a part of flue dust with cooling water in the contact spray cooling device then, meanwhile the water vapour in the gaseous mixture is cooled and is phase-changed into water, in the phase transition process of water vapour, also absorb a part of sulfur dioxide and taken away the less flue dust of particle, not only formerly thereby latter two stage all can be carried out desulfurization and dedusting to device of the present invention, thereby make the time of contact of flue gas and cooling water longer, and in the contact spray cooling device, carry out desulfurization and dedusting, thereby make efficiency of dust collection higher by direct contact and phase transformation dual mode.If the cooling water that is added is the pH value is 8～12 alkaline water, the efficient that then removes sulfur dioxide can reach more than 98%, even can be very near 100%.
(2) one aspect of the present invention can directly be connected on the body of heater or flue of industrial furnaces such as furnace cupola, body of heater or flue for different structure and shape generally also need be made a corresponding tubular connector, by this connector device of the present invention is installed on the body of heater or flue of relevant industrial stove, thereby the scope of application of desulfation dust-extraction device of the present invention is comparatively wide.
(3) of the present invention simple in structure, compare with the combined type dust arrester, do not need powerful air inducing equipment, compare with single water curtain dust arrester, do not need water under high pressure yet, thus not only equipment investment few, compare and can reduce investment outlay more than 60% with the combined type dust arrester, and energy resource consumption is lower, operating cost is also lower, is suitable for large tracts of land and promotes the use of.In addition, the present invention also can be added on the existing dust arrester to improve dedusting and desulfurized effect.
(4) cap that stops of the present invention in use has two effects, the one, the flue gas that rises is stopped and makes it enter the spray district the housing inner chamber from stopping passage between cap and the housing, the 2nd, can the cooling water that fall from the top be stopped, prevent that not only cooling water from falling into body of heater or flue, and make cooling water along stopping that the upper surface of cap flows down and drops down onto on the annular bottom plate of housing.Drop down onto in the process of annular bottom plate at cooling water, then carried out primary being in contact with one another with flue gas.When of the present invention when stopping that cap is an inverted conical shell, then also can cause to fall and break to the cooling water that stops cap when falling to annular bottom plate, form the water curtain of an annular.After the upper surface of the cap body that stops cap is provided with the current rotary part, the current that fall from the top then can continue to fall from the cap body along the connecting plate of involute shape, not only can prolong current and stop the distance that flows through on the cap, and current have been carried out uniform shunting.The lower edge of truncated cone-shaped housing exceeds the cap body, then make on the one hand and stop that cap can form inside and outside two-layer water curtain, make on the other hand the interlayer that the part of smoke pass the internal layer water curtain forms between cap body, truncated cone-shaped housing and connecting plate by entering the spray district in the housing inner chamber, flue gas is by described interlayer the time, also can with reverse cooling water positive energy exchange and material, make flue gas become to contain and the gaseous mixture of steam make cooling water adsorb a part of flue dust and sulfur dioxide.
(5) water intake mode of desulfurizing dust-collector of the present invention has two kinds.A kind of is directly to adopt water inlet pipe that cooling water is introduced in the contact cooling sprayer; At the contact cooling sprayer is to have under the situation of the tubulation contact cooling sprayer of two tube sheets up and down, sends into cooling water on the upper perforated plate respectively and between upper perforated plate and the lower perforated plate with water inlet pipe on one and 1～3 following water inlet pipe.
Another kind of water intake mode is the form that adopts water distributor, cooling water is introduced in the header tank of water distributor by a water inlet pipe earlier, by outlet pipe cooling water is introduced in the contact cooling sprayer again.A kind of mode in back can make the cooling water that enters in the desulfurizing dust-collector that the place of a buffering is arranged, cooling water is guided on the upper perforated plate by many outlet pipes by header tank then, 1～2 special outlet pipe can also be set in many outlet pipes, its delivery port is arranged between upper perforated plate and the lower perforated plate.
In these two kinds of water intake modes, treat that the upper end that cooling water on the upper perforated plate covers the single tube of tubulation then can enter in the single tube of tubulation, is the moisture film shape along the single tube inwall then and flows down; The cooling water that flows between upper perforated plate and the lower perforated plate then is under the water film flow along the single tube outer wall the gap between each single tube of tubulation and lower perforated plate; Gaseous mixture then from bottom to top contacts with the cooling water of each body inside and outside wall of flowing through, and what can keep not only that gaseous mixture upwards flows is unimpeded, and has the contact area of bigger gas and water.In addition, between upper perforated plate and the lower perforated plate and the area of space between each single tube of tubulation then be the conduction-type cooling zone, that is to say that the cooling water that is added by following water inlet pipe also plays further cooling effect to the gaseous mixture in the pipe of the tubulation of flowing through.
(6) the eddy flow guide plate is set when desulfurizing dust-collector of the present invention, if flue gas with certain flow rate pass stop that the formed water curtain of cap enters spray district after, then under the guide effect of eddy flow guide plate, flue gas is upwards forming the gaseous mixture eddy flow that contain flue gas and steam along the guide plate rotation with current and water smoke in reverse mutual the mixing.Not only prolonged the incorporation time of flue gas and current and water smoke, and can be cooled water cooling cooling and be that core is condensed into droplet with wherein a part of flue dust of gaseous mixture, considerable flue dust will be pulled away along with drop converges into current.
(7) after desulfurizing dust-collector of the present invention is provided with dissepiment net atomising device, pass in the process of this dissepiment net atomising device at flue gas, spray shape cooling water flows out and drops down onto on each atomizing cup of dissepiment net atomising device from the contact spray cooling device, flue gas then not only contacts and is cooled with atomizing cup in the process that makes progress with the gaseous mixture of water smoke, and directly contact with cooling water and be cooled, also make the atomizing of part cooling water, thereby help dedusting and desulfurization.
(8) after the present invention is provided with air exhauster, can reduce inner resistance when needed, make the flue gas circulation smooth and easy, do not stop up.
Description of drawings
Fig. 1 is a kind of structural representation of desulfation dust-extraction device of the present invention;
Fig. 2 is the structural representation of the tube sheet among Fig. 1;
Fig. 3 is fixed on structural representation on the housing for the cap that stops among Fig. 1 by support bar;
Fig. 4 is tubulation and the interconnective structural representation of tube sheet among Fig. 1;
Fig. 5 is the another kind of structural representation of desulfation dust-extraction device of the present invention;
Fig. 6 is the third structural representation of desulfation dust-extraction device of the present invention;
Fig. 7 is the 4th a kind of structural representation of desulfation dust-extraction device of the present invention;
Fig. 8 is the structural representation of tube sheet among Fig. 7;
Fig. 9 is the structural representation of dissepiment net atomising device among Fig. 7;
Figure 10 is the structural representation of eddy flow guide plate among Fig. 7;
Figure 11 is for stopping the current rotary part structural representation of cap among Fig. 7;
Figure 12 is the structural representation of the water distributor among Fig. 7.
The item table
Desulfurizing dust-collector 1,
Housing 1-1, gas approach 1-1-1, annular bottom plate 1-1-2, annular side plate 1-1-3, spray district 1-1-4,
Water inlet pipe 1-2, go up water inlet pipe 1-2-1, down water inlet pipe 1-2-2,
Contact cooling sprayer 1-3, liquid level equilibrium pipe 1-3-1,
Tube sheet 1-4, upper perforated plate 1-4-1, lower perforated plate 1-4-2, pore 1-4-3,
Tubulation 1-5, gas balance mouth 1-5-1, main pipe 1-5-2,
Water entering section 1-6, water inlet 1-6-1, nipple 1-6-3,
Stop cap 1-7, support bar 1-7-1,
Air exhauster 1-8,
Blow-off pipe 1-9,
Bottom connector 1-10, ring flange 1-10-1,
Cupola body 3, charging aperture 3-1, ring flange 3-2,
Water distributor 2, header tank 21, outlet pipe 22, upper water-out pipe 22-1, lower discharging tube 22-2,
Contact cooling sprayer 4, tubulation 41, upper perforated plate 42, pore 42-1, lower perforated plate 43, pore 43-1,
Dissepiment net atomising device 5, netted base plate 51, atomizing cup 52,
Eddy flow guide plate 6,
Stop cap 7, cap body 71, current rotary part 72, truncated cone-shaped housing 72-1, strip connecting plate 72-2,
The specific embodiment
(embodiment 1)
Referring to Fig. 1, the desulfurization dust collector for industrial furnace of present embodiment is the desulfurizing dust-collector of single-stage.This desulfurizing dust-collector 1 comprises housing 1-1, also comprise the contact cooling sprayer 1-3, the blow-off pipe 1-9 that all are fixed on the housing 1-1, stop cap 1-7 and water inlet pipe 1-2, provide the into parts of water to contact cooling sprayer 1-3 when water inlet pipe 1-2 is to use.Blow-off pipe 1-9 has 1, and blow-off pipe 1-9 is in outside the housing 1-1, and its import is positioned at the minimum position of housing 1-1 and communicates with the inner chamber of housing 1-1.
Still referring to Fig. 1, housing 1-1 has gas approach 1-1-1, annular bottom plate 1-1-2 and annular side plate 1-1-3, gas approach 1-1-1 is positioned at the central authorities of annular bottom plate 1-1-2, annular bottom plate 1-1-2 and annular side plate 1-1-3 is airtight links together, annular bottom plate 1-1-2 is obliquely installed by low inside and high outside mode, and housing 1-1 upper end open.
Stop that cap 1-7 is the low inside and high outside structural member of upper surface, present embodiment preferred conical housing.Contact cooling sprayer 1-3 and stop that cap 1-7 all is among the housing 1-1; The vertex of a cone that stops cap 1-7 is positioned at the top, and contact cooling sprayer 1-3 is positioned at the top that stops cap 1-7.The lower edge quartering that stops cap 1-7 is welded with four support bar 1-7-1, and the annular side plate 1-1-3 that these four support bar 1-7-1 other end separately is weldingly fixed on housing 1-1 goes up (see figure 3), stops that cap 1-7 is positioned at the central authorities of housing 1-1 thereby make.The lower end of contact cooling sprayer 1-3 and stop between the cap 1-7 and the annular bottom plate 1-1-2 of the lower end of contact cooling sprayer 1-3 and housing 1-1 between the space be spray district 1-1-4.
Still referring to Fig. 1, contact cooling sprayer 1-3 is a tubulation contact cooling sprayer, and this tubulation contact cooling sprayer 1-3 has tubulation 1-5 and tube sheet 1-4.Tube sheet 1-4 is provided with one group of pore 1-4-3 (see figure 2).The every single tube of tubulation 1-5 passes the last corresponding pore 1-4-3 of tube sheet 1-4 and is fixed on the tube sheet 1-4, and tube sheet 1-4 is fixed on the annular side plate 1-1-3 of housing 1-1.The every single tube of tubulation 1-5 is parallel to each other and vertically is provided with, the equal opening of body upper and lower side of every single tube, and the upper end of these bodys is positioned at the top of tube sheet 1-4, and the upper end of body is provided with water entering section 1-6, and water entering section 1-6 has water inlet 1-6-1; The wall of the top of the pipeline section that is positioned at tube sheet 1-4 below of these bodys is provided with the through hole 1-5-1 as the vapor liquid equilibrium mouth.
Still referring to Fig. 1, in the present embodiment, the tube sheet 1-4 of above-mentioned contact cooling sprayer 1-3 is 2, is divided into upper perforated plate 1-4-1 and the lower perforated plate 1-4-2 that is positioned at upper perforated plate 1-4-1 below; Water inlet pipe 1-2 is divided into 1 and goes up water inlet pipe 1-2-1 and 1 following water inlet pipe 1-2-2; The part of last water inlet pipe 1-2-1 is in housing 1-1 inside, remainder is in housing 1-1 outside, and last water inlet pipe 1-2-1 is in the top that part in the housing 1-1 is positioned at upper perforated plate 1-4-1, and its delivery port is positioned at the central part top of upper perforated plate 1-4-1; Following water inlet pipe 1-2-2 is in housing 1-1 outside, and its delivery port is arranged on housing 1-1 and upward and with the inner chamber of housing 1-1 communicates, and this delivery port is between upper perforated plate 1-4-1 and lower perforated plate 1-4-2.Set water entering section 1-6 is positioned at upper perforated plate 1-4-1 top on the upper end of the body of the every single tube of tubulation 1-5.The design of the water entering section 1-6 of present embodiment is that the sustained height place on the wall that is positioned at the pipeline section above the upper perforated plate 1-4-1 of the every single tube of tubulation 1-5 establishes 5～10 through hole 1-6-1 as water inlet that make water enter pipe, the top height unanimity of all single tubes.
Still referring to Fig. 1, pore 1-4-3 on the lower perforated plate 1-4-2 is slightly larger than the pore 1-4-3 on the upper perforated plate 1-4-1, the body of the every single tube of tubulation 1-5 is fixedlyed connected with upper perforated plate 1-4-1 seal welding, and upper perforated plate 1-4-1 is fixedlyed connected with the inner wall sealing welding of the annular side plate 1-1-3 of housing 1-1; The body of the every single tube of tubulation 1-5 is weldingly fixed on the lower perforated plate 1-4-2 by three place's solder joints, thereby has formed the gap (see figure 4) between the hole wall of the corresponding pore 1-4-3 of every single tube and lower perforated plate 1-4-2.This structure makes between upper perforated plate 1-4-1 and the lower perforated plate 1-4-2 and the area of space between each single tube of tubulation 1-5 becomes the conduction-type cooling zone of contact cooling sprayer 1-3.
See Fig. 1 and Fig. 3, stop that cap 1-7 is fixedly supported among the housing 1-1 by support bar 1-7-1 and is positioned at the below of contact cooling sprayer 1-3; The conical shell that is shaped as that stops cap 1-7, and be positioned at the top by the vertex of a cone and be arranged on the central authorities of housing 1.
Still referring to Fig. 1, the desulfation dust-extraction device of present embodiment can be used on the furnace cupola 4, and before the use, a ring flange 4-2 fixes in the exhanst gas outlet stack shell airtight welding in upper end that furnace cupola 4 is provided with dog-house 4-1 in elder generation.The bottom connector that has ring flange 5-1 5 airtight being fixed on the ring flange 4-2 that to make in advance then.Desulfation dust-extraction device for present embodiment then fixes by special support, and make airtight the fixedlying connected of upper port of plate body and bottom connector 5 of formation gas approach 1-1-1 of the housing 1-1 of grade desulfurizing dust-collector 1, thereby the gas approach 1-1-1 of housing 1-1 is connected with the exhanst gas outlet of furnace cupola.
When the desulfation dust-extraction device of present embodiment uses, by water pump cooling water is pumped into enterprising water pipe 1-2-1 and following water inlet pipe 1-2-2, after cooling water flow out of water inlet pipe 1-2, enter among the contact cooling sprayer 1-3, cooling water passes through contact cooling sprayer 1-3 from top to bottom under the gravity effect, wherein the cooling water that enters contact cooling sprayer 1-3 by last water inlet pipe 1-2-1 enters each single tube by the water inlet 1-6-1 of the water entering section 1-6 of each single tube of tubulation 1-5 and flows down along the inwall of each single tube, the cooling water that is entered contact cooling sprayer 1-3 by the second water inlet pipe 1-2-2 enters in the cavity between the upper perforated plate 1-4-1 and the second upper perforated plate 1-4-2 of housing 1-1, flow through the hole wall of pore 1-4-3 of lower perforated plate 1-4-2 and the gap between the corresponding single tube outer wall again, outer wall along each single tube flows down, these cooling waters that flow down along the inside and outside wall of single tube are after converge the single tube lower end, being the spray shape falls and leaves contact cooling sprayer 1-3, part cooling water falls to the upper surface that stops cap 1-7, be along the upper surface that stops cap 1-7 from its edge again on the annular bottom plate 1-1-2 that the water curtain shape falls to housing 1-1, another part cooling water falls on the annular bottom plate of direct arrival housing 1 the formed passage between the annular side plate that stops cap 1-7 and housing 1-1, after these drop down onto cooling water on the annular bottom plate 1-1-2 of housing 1-1 and flow into blow-off pipe 1-9 along annular bottom plate 1-1-2, outside blow-off pipe 1-9 discharges desulfation dust-extraction device.
The flue gas that furnace cupola produced enters the desulfation dust-extraction device from the bottom to top from the gas approach 1-1-1 of housing 1-1, because of stopping of cap 1-7 that stop of top stopping that the water curtain between the annular bottom plate 1-1-2 of cap 1-7 and housing 1-1 contacts with cooling water, contacts with the spray shape cooling water that the contact cooling sprayer falls around passing earlier.In this process, flue gas and cooling water generation heat exchange contacted with it are also taken away a part of soot dust granule and are absorbed a part of sulfur dioxide by a part of cooling water, the annular bottom plate 1-1-2 that this part cooling water drops to housing 1-1 goes up back inflow blow-off pipe 1-9, outside blow-off pipe 1-9 discharges desulfation dust-extraction device; Absorbing heat because of heat exchange with the contacted another part cooling water of flue gas produces phase transformation, becomes steam, mixes with flue gas to be gaseous mixture in steam under the drive of flue gas is flowing.
After the gaseous mixture of flue gas and steam upwards enters contact cooling sprayer 1-3, part gaseous mixture directly enters the inner chamber of each single tube of tubulation 1-5, and contact with cooling water in the inner chamber of each single tube that enters contact cooling sprayer 1-3, another part gaseous mixture then enters the space between the single tube of tubulation 1-5 and contacts with the cooling water that flows down along each single tube outer wall, and gaseous mixture and the cooling water water that then is cooled in contact process has absorbed a part of sulfur dioxide and adsorbed a part of soot dust granule.
Meanwhile, enter water vapour in the gaseous mixture among the contact cooling sprayer 1-3 under the cooling effect of cooling water, be cooled and undergo phase transition and become liquid water, in the generative process of aqueous water, a part of sulfur dioxide in the gaseous mixture is absorbed by these newly-generated liquid water droplets, and the less soot dust granule of particle diameter is then adsorbed by these these newly-generated liquid water droplets.Because of the flue dust in water vapour and the flue gas and sulfur dioxide gas mix, so when water vapour was phase-changed into liquid water droplets, the sulfur dioxide that can be easy to close on absorbed, the molecule that will close on adsorbs, thereby efficient is higher.In contact cooling sprayer 1-3, cooling water has two kinds to the type of cooling of gaseous mixture.Kind of mode is the direct contact type cooling, no matter be the gaseous mixture that directly enters the single tube inner chamber of tubulation 1-5, still enters the gaseous mixture between each single tube of tubulation 1-5, all directly contacts with the cooling water of the contact cooling sprayer 1-3 that flows through and is cooled; Second kind of type of cooling is, for the gaseous mixture that directly enters in each single tube inner chamber of tubulation 1-5, these gaseous mixtures through each single tube be positioned at the pipeline section in outer wall cooling water district the time, if the cooling water in the outer wall cooling water district has certain height, then can further cool off gaseous mixture by heat conducting mode; For the gaseous mixture that enters between each single tube of tubulation, these gaseous mixtures are at the inner chamber that enters single tube behind the through hole 1-5-1 as the vapor liquid equilibrium mouth below the lower perforated plate 1-4-2 that is positioned at through each single tube, also by the pipeline section that is positioned at outer wall cooling water district of single tube, heat conducting cooling has also taken place then this moment; The cooling of dual mode makes the water vapour in the gaseous mixture relatively easily be phase-changed into liquid water droplet.These are absorbed with the constantly polymerization and absorbed a part of sulfur dioxide with above-mentioned directly the contact with gaseous mixture and mix with the cooling water that has adsorbed a part of soot dust granule mutually in the whereabouts of sulfur dioxide and the water droplet that is generated by the water vapour phase transformation that is adsorbed with the flue dust molecule, being the spray shape leaves contact cooling sprayer 1-3 and falls into the spray district, after these cooling waters of spray district absorb a part of sulfur dioxide and absorption part soot dust granule again, at last outside blow-off pipe 1-9 discharges desulfation dust-extraction device.
The method good dedusting effect of present embodiment, desulfuration efficiency can reach more than 85%.
(embodiment 2)
See Fig. 1, all the other are substantially the same manner as Example 1, and difference is: in order to make the flue gas circulation in the housing 1-1 smooth and easy, do not stop up, also connect 1 air exhauster 1-8 in the upper end of housing 1-1 by support (not drawing among the figure).
(embodiment 3)
See Fig. 5, present embodiment is substantially the same manner as Example 2, difference is: contact cooling sprayer 1-3 also is provided with liquid level equilibrium pipe 1-3-1, liquid level equilibrium pipe 1-3-1 has 6, liquid level equilibrium pipe 1-3-1 passes the corresponding pore 1-4-3 of upper perforated plate 1-4-1 of tube sheet 1-4, also passes the corresponding pore 1-4-3 of lower perforated plate 1-4-2.Its fixed form is identical with the mode that tubulation 1-5 is fixed on the tube sheet 1-4.The upper port of liquid level equilibrium pipe 1-3-1 from the height between the water inlet 1-6-1 of the upper port of each single tube of tubulation 1-5 and the water entering section 1-6 on each single tube of tubulation 1-5.1-3-1 behind the liquid level equilibrium pipe is set, in the time of can being higher than water entering section 1-6 in the liquid level of cooling water, in the upper port inflow pipe of liquid level equilibrium pipe 1-3-1, thereby play the effect of balance liquid level, prevent from when the adding excessive velocities of cooling water, to cover tubulation 1-5 single tube upper port and influence dust removing effects.
The liquid level equilibrium pipe 1-3-1 of present embodiment also is provided with a water entering section 1-6 on structure, the water inlet 1-6-1 of this water entering section 1-6 is consistent with the height of the water inlet 1-6-1 of the water entering section 1-6 of the single tube of tubulation 1-5, thereby liquid level equilibrium pipe 1-3-1 is under the normal height situation at cooling water, also can play the single tube of tubulation 1-5.
(embodiment 4)
See Fig. 6, present embodiment is substantially the same manner as Example 2, and difference is: each single tube of the tubulation 1-5 of contact cooling sprayer 1-3 is made up of a main pipe 1-5-2 and a nipple 1-6-3 who is welded on the main pipe 1-5-2 upper surface in the present embodiment.There are 3 solder joints this welding position.Between each solder joint, forming between the upper surface of the lower surface of nipple 1-6-3 and main pipe 1-5-2 highly is the horizontal gap of 10mm, and these horizontal gaps are the water inlet 1-6-1 of water entering section 1-6.The upper port height unanimity of the main pipe 1-5-2 of all single tubes, the upper port height of all nipple 1-6-3 are also consistent.This scheme can make cooling water enter in each single tube of tubulation 1-5 by these slits 1-6-1.
(embodiment 5)
Referring to Fig. 7, the desulfurization dust collector for industrial furnace of present embodiment has desulfurizing dust-collector 1, and this desulfurizing dust-collector 1 comprises housing 11, water inlet pipe 12, blow-off pipe 19, water distributor 2, contact cooling sprayer 4 and stops cap 7.The diameter of housing 11 is 2.6m.
The upper end open of housing 11, housing 11 has gas approach 11-1, annular bottom plate 11-2 and annular side plate 11-3, gas approach 11-1 is positioned at the central authorities of annular bottom plate 11-2, the airtight below that links together and be positioned at annular side plate 11-3 of annular bottom plate 11-2 and annular side plate 11-3.Annular bottom plate 11-2 is obliquely installed by low inside and high outside mode, and annular bottom plate 11-2 is provided with the delivery port that is positioned at lowest part, and this delivery port is connected with the water inlet of blow-off pipe 19 is airtight.
Stop that cap 7 is that down surface is conical structural member, stop that cap 7 upper surfaces are provided with current rotary part 72, stop that cap 7 comprises cap body 71 and current rotary part 72 (seeing Figure 11).Current rotary part 72 comprises truncated cone-shaped housing 72-1 and is weldingly fixed on 6 strip connecting plate 72-2 on the truncated cone-shaped housing 72-1 lower surface, and strip connecting plate 72-2 is shaped as involute shape; Each strip connecting plate 72-2 of current rotary part 72 is centrosymmetric and is arranged on the truncated cone-shaped housing 72-1, and current rotary part 72 is weldingly fixed on the upper surface of cap body 71 by the lower surface of its each connecting plate 72-2; The lower edge of truncated cone-shaped housing 72-1 exceed cap body 71 apart from s be cap body 71 diameter 10%.
Contact cooling sprayer 4 is a tubulation contact cooling sprayer, this tubulation contact cooling sprayer has tubulation 41 and 2 tube sheets, 2 tube sheets are divided into upper perforated plate 42 and the lower perforated plate 43 that is positioned at upper perforated plate 42 belows, each single tube of tubulation 41 is parallel to each other and vertically is provided with, the equal opening of body upper and lower side of every single tube, every single tube of tubulation 41 passes on the upper perforated plate 42 corresponding pore 43-1 (see figure 8) on corresponding pore 42-1 and the lower perforated plate 43, the upper end of the body of every single tube is positioned at the top of upper perforated plate 42, the lower end of the body of every single tube is positioned at the below of lower perforated plate 43, the body of every single tube of tubulation 41 and upper perforated plate 42 are sealedly and fixedly connected, upper perforated plate 42 is fixedlyed connected with the inner wall sealing of the annular side plate 11-3 of housing 11, the body of every single tube of tubulation 41 also is weldingly fixed on lower perforated plate 43, and leave the gap between the part hole wall of the corresponding pore 43-1 of every single tube and lower perforated plate 43, lower perforated plate 43 is weldingly fixed on the annular side plate 11-3 of housing 11.
Water distributor 2 comprises that header tank 21 and water inlet are arranged on 8 outlet pipes 22 on header tank 21 tops, and the delivery port of each outlet pipe 22 is towards contact cooling sprayer 4 (seeing Figure 12).Comprise in the outlet pipe 22 of water distributor 2 that delivery port is in upper perforated plate 42 edges and at the upper water-out pipe 22-1 above the upper perforated plate 42 and comprise the lower discharging tube 22-2 of delivery port between upper perforated plate 42 and lower perforated plate 43.
Water distributor 2, contact cooling sprayer 4 and stop that cap 7 is according to being set in sequence in the housing 11 from top to bottom.The delivery port of water inlet pipe 12 is connected with the water inlet of water distributor 2 is airtight.The space that is centered between the inner surface of the upper surface of the annular bottom plate 11-2 of the lower end of contact cooling sprayer 4, the upper surface that stops cap 7, housing 11 and the annular side plate 11-3 of housing 11 is spray district 11-4.
(embodiment 6)
Still referring to Fig. 7, all the other are substantially the same manner as Example 5, and difference is: in order to make the flue gas circulation in the housing 11 smooth and easy, do not stop up, also connect 1 air exhauster 18 in the upper end of housing 11 by support (not drawing among the figure).
(embodiment 7)
Still referring to Fig. 7, all the other are substantially the same manner as Example 6, and difference is: desulfurizing dust-collector 1 also comprises dissepiment net atomising device 5 (see figure 9)s.Dissepiment net atomising device 5 is arranged on the space among the spray district 11-4 and between contact cooling sprayer 4 and eddy flow guide plate 6.Dissepiment net atomising device 5 comprises netted base plate 51 and each atomizing cup 52 vertical parallel compositions on the netted base plate 51 that closely are arranged in.Each atomizing cup constitutes by the diamond hole web plate coiled of steel is cylindric.
(embodiment 8)
Still referring to Fig. 7, all the other are substantially the same manner as Example 6, and difference is: desulfurizing dust-collector 1 comprises that also 18 are arranged on the space for spraying among the district 11-4 and being positioned at eddy flow guide plate 6 (see figure 10)s that stop cap 7 tops.The shape of every eddy flow guide plate 6 is identical, is a tetragonal plate, and its top edge is horizontal, inner edges and outward flange all form 90 ° of angles with top edge, and outward flange length is greater than the length of inward flange, and low inside and high outside skewed thereby lower limb is, inclination angle γ is 25 °.The plate body of each eddy flow guide plate 6 is weldingly fixed on the annular side plate 11-3 of housing 11 by its outer ledge, and residing height and position is identical.On sustained height, the plate body of each eddy flow guide plate 6 is 10 ° angle with the diametric(al) of the housing 11 of its outer ledge of process, and the outer ledge of each eddy flow guide plate 6 is according to being 30 ° angle setting with vertical direction, thereby the inside edge of each eddy flow guide plate 6 is gone up at various height around a corresponding imaginary circle setting, and this imagination diameter of a circle is 7m.
Claims (10)
1, a kind of desulfurization dust collector for industrial furnace, has desulfurizing dust-collector (1), this desulfurizing dust-collector (1) comprises housing (1-1), it is characterized in that: also comprise the contact cooling sprayer (1-3), the blow-off pipe (1-9) that all are fixed on the housing (1-1), stop cap (1-7) and water inlet pipe (1-2); Housing (1-1) has gas approach (1-1-1), annular bottom plate (1-1-2) and annular side plate (1-1-3), gas approach (1-1-1) is positioned at the central authorities of annular bottom plate (1-1-2), annular bottom plate (1-1-2) and airtight the linking together of annular side plate (1-1-3), annular bottom plate (1-1-2) is obliquely installed by low inside and high outside mode, and housing (1-1) upper end open; Stop that cap (1-7) is the low inside and high outside structural member of upper surface; Contact cooling sprayer (1-3) and stop that cap (1-7) all is in the housing (1-1) stops that cap (1-7) is positioned at the below of contact cooling sprayer (1-3) and is positioned at the central authorities of housing (1-1); The lower end of contact cooling sprayer (1-3) and stop cap (1-7) and the annular bottom plate (1-1-2) of housing (1-1) between the space be spray district (1-1-4); Water inlet pipe (1-2) has 1～4, provides the into parts of water to contact cooling sprayer (1-3) when being to use; Blow-off pipe (1-9) has 1～2, and blow-off pipe (1-9) is in outside the housing (1-1), and its import is positioned at the minimum position of housing (1-1) and communicates with the inner chamber of housing (1-1).
2, desulfurization dust collector for industrial furnace according to claim 1, it is characterized in that: contact cooling sprayer (1-3) is a tubulation contact cooling sprayer, and this tubulation contact cooling sprayer has tubulation (1-5) and 1～2 tube sheet (1-4); Every single tube of tubulation (1-5) passes tube sheet (1-4) and goes up corresponding pore (1-4-3), and is fixed on the tube sheet (1-4), and tube sheet (1-4) is fixed on the annular side plate (1-1-3) of housing (1-1); Every single tube of tubulation (1-5) is parallel to each other and vertically is provided with, the equal opening of body upper and lower side of every single tube, the upper end of these bodys is positioned at the top of tube sheet (1-4), and the upper end of body is provided with water entering section (1-6), and water entering section (1-6) has water inlet (1-6-1); The wall of the top of the pipeline section that is positioned at tube sheet (1-4) below of these bodys is provided with vapor liquid equilibrium mouth (1-5-1); The conical shell that is shaped as that stops cap (1-7), its vertex of a cone are positioned at the top.
3, desulfurization dust collector for industrial furnace according to claim 2 is characterized in that: the tube sheet (1-4) of contact cooling sprayer (1-3) is 2, is divided into upper perforated plate (1-4-1) and is positioned at the lower perforated plate (1-4-2) of upper perforated plate (1-4-1) below; Water inlet pipe branch (1-2) is 1 and goes up water inlet pipe (1-2-1) and 1～3 following water inlet pipe (1-2-2); The part of last water inlet pipe (1-2-1) is in housing (1-1) inside, remainder is in housing (1-1) outside, last water inlet pipe (1-2-1) be in the top that part in the housing (1-1) is positioned at upper perforated plate (1-4-1), and its delivery port is positioned at the central part top of upper perforated plate (1-4-1); Following water inlet pipe (1-2-2) is in housing (1-1) outside, and its delivery port is arranged on housing (1-1) and upward and with the inner chamber of housing (1-1) communicates, and this delivery port is positioned between upper perforated plate (1-4-1) and the lower perforated plate (1-4-2); Set water entering section (1-6) is positioned at upper perforated plate (1-4-1) top on the upper end of the body of every single tube of tubulation (1-5); The gas balance mouth (1-5-1) of every single tube of tubulation (1-5) is positioned on the pipeline section of lower perforated plate (1-4-2) below; The body of every single tube of tubulation (1-5) and upper perforated plate (1-4-1) are sealedly and fixedly connected, and upper perforated plate (1-4-1) is fixedlyed connected with the inner wall sealing of the annular side plate (1-1-3) of housing (1-1); The body of every single tube of tubulation (1-5) is weldingly fixed on the lower perforated plate (1-4-2), and leaves the gap between the part hole wall of the corresponding pore (1-4-3) of every single tube and lower perforated plate (1-4-2); Lower perforated plate (1-4-2) is weldingly fixed on the annular side plate (1-1-3) of housing (1-1).
4, according to the described desulfurization dust collector for industrial furnace of one of claim 1 to 3, it is characterized in that: desulfurizing dust-collector (1) also comprises 1 air exhauster (1-8), and air exhauster (1-8) is in the housing (1-1) and is positioned at the upper end open place of housing (1-1).
5, a kind of desulfurization dust collector for industrial furnace, has desulfurizing dust-collector (1), this desulfurizing dust-collector (1) comprises housing (11), it is characterized in that: also comprise water inlet pipe (12), blow-off pipe (19), water distributor (2), contact cooling sprayer (4) and stop cap (7); The upper end open of housing (11); Housing (11) has gas approach (11-1), annular bottom plate (11-2) and annular side plate (11-3), gas approach (11-1) is positioned at the central authorities of annular bottom plate (11-2), annular bottom plate (11-2) and the airtight below that links together and be positioned at annular side plate (11-3) of annular side plate (11-3); Annular bottom plate (11-2) is obliquely installed by low inside and high outside mode, and annular bottom plate (11-2) is provided with the delivery port that is positioned at lowest part, the airtight connection of water inlet of this delivery port and blow-off pipe (19); Stop that cap (7) is that down surface is conical structural member; Water distributor (2), contact cooling sprayer (4) and stop that cap (7) is according to being set in sequence in the housing (11) from top to bottom; The airtight connection of water inlet of the delivery port of water inlet pipe (12) and water distributor (2); Water distributor (2) comprises that header tank (21) and water inlet are arranged on 6～12 outlet pipes (22) on header tank (21) top; The delivery port of each outlet pipe (22) is towards contact cooling sprayer (4); The space that is centered between the inner surface of the upper surface of the annular bottom plate (11-2) of the lower end of contact cooling sprayer (4), the upper surface that stops cap (7), housing (11) and the annular side plate (11-3) of housing (11) is spray district (11-4).
6, desulfurization dust collector for industrial furnace according to claim 5 is characterized in that: contact cooling sprayer (4) is a tubulation contact cooling sprayer, and this tubulation contact cooling sprayer has tubulation (41) and 2 tube sheets; 2 tube sheets are divided into upper perforated plate (42) and are positioned at the lower perforated plate (43) of upper perforated plate (42) below; Each single tube of tubulation (41) is parallel to each other and vertically is provided with, the equal opening of body upper and lower side of every single tube, every single tube of tubulation (41) passes the last corresponding pore (42-1) of upper perforated plate (42) and lower perforated plate (43) is gone up corresponding pore (43-1), the upper end of the body of every single tube is positioned at the top of upper perforated plate (42), and the lower end of the body of every single tube is positioned at the below of lower perforated plate (43); The body of every single tube of tubulation (41) and upper perforated plate (42) are sealedly and fixedly connected, and upper perforated plate (42) is fixedlyed connected with the inner wall sealing of the annular side plate (11-3) of housing (11); The body of every single tube of tubulation (41) also is weldingly fixed on lower perforated plate (43), and leaves the gap between the part hole wall of the corresponding pore (43-1) of every single tube and lower perforated plate (43); Lower perforated plate (43) is weldingly fixed on the annular side plate (11-3) of housing (11); Comprise in the outlet pipe (22) of water distributor (2) that delivery port is positioned at upper perforated plate (42) edge and is positioned at the upper water-out pipe (22-1) of upper perforated plate (42) top and comprises that delivery port is positioned at the lower discharging tube (22-2) between upper perforated plate (42) and the lower perforated plate (43).
7, desulfurization dust collector for industrial furnace according to claim 6 is characterized in that: desulfurizing dust-collector (1) comprises that also 6～20 are arranged in the spray district (11-4) and are positioned at the eddy flow guide plate (6) that stops cap (7) top; The shape of every eddy flow guide plate (6) is identical, be a tetragonal plate, its top edge is horizontal, inner edges and outward flange all form 90 ° of angles with top edge, and outward flange length is greater than the length of inward flange, it is low inside and high outside skewed that thereby lower limb is, and inclination angle γ is 20～35 °; The plate body of each eddy flow guide plate (6) is weldingly fixed on the annular side plate (11-3) of housing (11) by its outer ledge, and residing height and position is identical; On sustained height, the plate body of each eddy flow guide plate (6) is 5～15 ° angle with the diametric(al) of the housing (11) of its outer ledge of process, and the outer ledge of each eddy flow guide plate (6) is according to being 20～40 ° angle setting with vertical direction, thereby go up at various height around a corresponding imaginary circle setting inside edge that makes each eddy flow guide plate (6), the magnitude range of this imagination diameter of a circle be housing (11) diameter 20%～30%.
8, desulfurization dust collector for industrial furnace according to claim 7 is characterized in that: desulfurizing dust-collector (1) also comprises dissepiment net atomising device (5); Dissepiment net atomising device (5) is arranged in the spray district (11-4) and is positioned between contact cooling sprayer (4) and the eddy flow guide plate (6); Dissepiment net atomising device (5) comprises netted base plate (51) and the vertical parallel upward composition of netted base plate (51) that closely is arranged in of each atomizing cup (52); Each atomizing cup constitutes by the diamond hole web plate coiled of steel is cylindric.
9, according to the described desulfurization dust collector for industrial furnace of one of claim 5 to 8, it is characterized in that: stop that cap (7) is provided with the cap that stops of current rotary part (72) for upper surface; Stop that cap (7) comprises cap body (71) and current rotary part (72); Current rotary part (72) comprises truncated cone-shaped housing (72-1) and is weldingly fixed on 6～12 strip connecting plates (72-2) on truncated cone-shaped housing (72-1) lower surface, strip connecting plate (72-2) be shaped as involute shape; Each strip connecting plate (72-2) of current rotary part (72) is centrosymmetric and is arranged on the truncated cone-shaped housing (72-1), and current rotary part (72) is weldingly fixed on the upper surface of cap body (71) by the lower surface of its each connecting plate (72-2); The lower edge of truncated cone-shaped housing (72-1) exceed cap body (71) apart from s be cap body (71) diameter 5%～10%.
10, according to the described desulfurization dust collector for industrial furnace of one of claim 5 to 8, it is characterized in that: desulfurizing dust-collector (1) also comprises 1 air exhauster (18), and air exhauster (18) is in the housing (11) and is positioned at the upper end open place of housing (11).
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| CN2008102152855A CN101391175B (en) | 2007-09-21 | 2008-09-19 | Desulfurization dust collector for industrial furnace |
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| CN200710133545 | 2007-09-21 | ||
| CN200710133545.X | 2007-09-21 | ||
| CN2008102152855A CN101391175B (en) | 2007-09-21 | 2008-09-19 | Desulfurization dust collector for industrial furnace |
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| CN101391175B CN101391175B (en) | 2011-08-10 |
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| CN201291118Y (en) * | 2008-09-19 | 2009-08-19 | 姚立猛 | Desulfurization dust collector for industrial furnace |
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