Be applied to the Fire Hose of sack cleaner
The utility model relates to the deduster fire prevention, specifically, relates to a kind of Fire Hose that is applied to sack cleaner.
At present, in the smelting process of metallurgy industry, and power plant or some need to obtain in the industry of high temperature by burning, can produce a large amount of flue dust when producing, and cause environmental pollution.And according to environmental requirement, the discharge standard of every profession and trade must be up to state standards, and therefore, generally need to add cleaner after production technology, and flue gas is processed, so that exhaust emissions is up to standard, reduces and pollutes.And the flue gas that produces in above-mentioned industry production process, generally contain a large amount of granule dusts with Mars, as such dust not being carried out pretreatment, Mars can be lighted cloth bag, therefore sack cleaner can't use continuously, this type of band Mars dust is carried out pretreatment and seems and be even more important.
At present, in actual applications, usually adopt gravitational settling, centrifugation or increase the distance that flue dust enters deduster, these methods can be extinguished a certain amount of Mars, but still have the less Mars dust of some particle diameters to be brought to the cloth bag chamber by flue gas, the cloth bag that ignites makes deduster be forced to stop using.Also there is not at present the deduster pre-processing device of effective fire extinguishing dedusting.
The utility model content
For the technical problem that exists in prior art, the purpose of this utility model is: a kind of Fire Hose that is applied to sack cleaner that effectively prevents from entering with the Mars dust in flue gas sack cleaner is provided.
In order to achieve the above object, the utility model adopts following technical scheme:
Be applied to the Fire Hose of sack cleaner, comprise casing, humidifier, dehydration filler and flue-dust retainer; Along the flow direction of flue gas, be divided into spraying area and drying zone in casing; Humidifier is housed in spraying area, the dehydration filler is housed in drying zone; Flue-dust retainer is arranged on the bottom of casing, and is communicated with spraying area.After adopting this structure, the flue gas that is being mingled with the Mars dust is introduced into spraying area, and the Mars dust is extinguished by the humidifier water spray, and the Mars dust after extinguishing or big dust particle increase the weight of along with chance water condenses, with dropping down onto flue-dust retainer under water; Because flue gas contacts with water smoke, smoke moisture is larger, can affect equally the normal operation of sack cleaner, so flue gas need to through the dehydrated filler dehumidifying of drying zone, just can enter bag-type dusting chamber dedusting.The dehydration filler can guarantee to export the aridity of flue gas.Simple in structure, effectively fire extinguishing and pre-dedusting.
The casing horizontally set, a horizontal end is import, the other end is outlet; Import and outlet are joined with trunk line respectively; The cross-sectional area of casing is greater than the cross-sectional area of trunk line.After adopting this structure, flue gas enters casing from trunk line, and cross-sectional area increases suddenly, so flowing velocity reduces, and guarantees that flue gas fully contacts with water smoke at spraying area, guarantees that Mars extinguishes.
The main body of casing is cylindrical, and two ends are provided with the linkage section of taper, and the end of linkage section is import and outlet; The diameter of casing is 1.5 to 2 times of diameter of trunk line.After adopting this structure, namely flue gas flows along the level trend, and is simple in structure, easy to operate.
Import and outlet are tube connector; The tube connector diameter is identical with the trunk line diameter.After adopting this structure, tube connector connects by flange with trunk line, and is simple in structure, easy for installation.
Humidifier comprises tank, water circulating pump, stop valve and the shower nozzle that joins successively by water pipe; Shower nozzle stretches into the top in casing internal spraying district.After adopting this structure, the water of tank is extracted out through water circulating pump, from the shower nozzle ejection, and situation wet according to doing of flue gas, adjustable cut-off valve gets final product the amount of adjustable spraying, satisfy guaranteeing the ash that do not wet when spark extinguishes.
Flue-dust retainer is connected to overflow pipe, and overflow pipe is communicated with tank by water pipe.After adopting this structure, water is got back to tank again through overflow pipe after being collected by flue-dust retainer, and water is recycled, effectively saving water resource.
The water surface of tank is higher than 500 to 1000 millimeters of the water inlets of water circulating pump.After adopting this structure, can guarantee the normal operation of water circulating pump, in order to keep liquid level, regularly add water in tank as required.
Shower nozzle has a plurality of, and stop valve has a plurality of; A stop valve and at least one shower nozzle are composed in series one road branch road; Be connected in series with circulating pump after each road branch circuit parallel connection; Shower nozzle is evenly arranged in spraying area.After adopting this structure, independently a plurality of shower nozzles can make whole spraying area be covered with water smoke, do not stay the dead angle; The plural shower nozzle of while shower nozzle or series connection can be controlled spray volume by independent stop valve, and is easy to adjust.
The lower end of flue-dust retainer is provided with shoot door.After adopting this structure, after dust ran up to some, opening shoot door can be light grey, easy to operate.
Along the flow direction of flue gas, Fire Hose, trunk line and sack cleaner set gradually.After adopting this structure, flue gas carries out pretreatment through Fire Hose, then enters sack cleaner through trunk line and carry out dedusting, effectively protects sack cleaner, guarantees simultaneously dust removing effects.
Operation principle of the present utility model: the Fire Hose that is applied to sack cleaner is used for easily producing the improvement with the industrial waste gas of Mars dust, and the cloth bag of protection sack cleaner is to guarantee the normal stable operation of sack cleaner.The generation of dirt source point is collected through gas skirt with the flue gas of Mars dust, be delivered to Fire Hose by trunk line, import by Fire Hose enters box house, fully contact at spraying area with water smoke, to extinguish Mars, water smoke increases the weight of the larger dust of particle diameter simultaneously, together falls in flue-dust retainer with water, regularly the dust in flue-dust retainer is cleared up by shoot door; And the water that after spraying by overflow pipe, flue-dust retainer is collected is back to tank, and water is cooled and recycles to Fire Hose by the water circulating pump pump; The flue gas that extinguishes after Mars is separated moisture by the dehydration filler, completes the pretreatment of flue gas; The flue gas of relatively dry enters trunk line by the outlet of Fire Hose, carries toward sack cleaner.
Generally speaking, the utlity model has following advantage:
1. the utility model is arranged between dirt source point and sack cleaner, effectively flue gas is put out a fire and the dedusting pretreatment, and is safe and efficient, effectively protects the cloth bag of sack cleaner, guarantees the sack cleaner continuous and steady operation.
2. by stop valve, spray amount is regulated, easy to adjust.
3. simple and reasonable for structure, easy and simple to handle.
Description of drawings
Fig. 1 is structure chart of the present utility model.
Fig. 2 is process schematic representation of the present utility model.
Fig. 3 is the partial enlarged drawing of shower nozzle in Fig. 1.
Wherein, 1 is import, and 2 is casing, and 3 are the dehydration filler, and 4 is humidifier, and 5 is flue-dust retainer, 6 is overflow pipe, and 7 is shoot door, and 8 are outlet, and 9 is tank, and 10 is water circulating pump, and 11 is water pipe, 12 is stop valve, and 13 is shower nozzle, and 14 is linkage section, and 15 is trunk line, and 16 is sack cleaner.
The specific embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is to shown in Figure 3, and the utility model comprises: casing, humidifier, dehydration filler and flue-dust retainer.
The main body of casing is cylindrical, and two ends are provided with the linkage section of taper, the casing horizontally set, and the end of two linkage sections is respectively import and outlet.Import and outlet are shorter tube connector, and import and outlet are joined by flange and trunk line respectively, and the diameter of trunk line is identical with the tube connector diameter.The diameter of casing is 2 times of trunk line diameter.In casing, along the flow direction of flue gas, be divided into spraying area and drying zone.Shown in Figure 1 near import be spraying area, is drying zone near what export.
Humidifier comprises tank, water circulating pump, stop valve and the shower nozzle that joins successively by water pipe; Shower nozzle stretches into the top in casing internal spraying district.The quantity of shower nozzle and stop valve is three, and the corresponding shower nozzle of stop valve forms one road branch road; Join with circulating pump after three road branch circuit parallel connections; Shower nozzle is evenly arranged at the top of spraying area, to guarantee not stay the dead angle of spraying in spraying area.Water circulating pump is placed near tank.The water on the top of tank is limpider, and water circulating pump extracts the water on top as far as possible.Shower nozzle is spiral nozzle, and material is 316L, and the atomizing angle is 120 °.
The dehydration filler comprises dehydrator and support.Support is fixed on dehydrator in drying zone.
Flue-dust retainer is the structure of back taper, is arranged on the bottom of casing, and is communicated with spraying area.The lower end of flue-dust retainer is provided with able to turn on or off shoot door.The sidewall of flue-dust retainer, the top of shoot door are connected to overflow pipe, and overflow pipe joins by water pipe and tank.
During use, with the Fire Hose that is applied to sack cleaner be arranged on trunk line, before sack cleaner, flue gas is put out a fire and the dedusting pretreatment.Flue gas enters spraying area through trunk line, import, and because the casing cross-sectional area increases, flue gas flow rate reduces, and guarantees that flue gas fully contacts with water smoke; Water in tank extracts through water circulating pump, arrives shower nozzle through stop valve, atomizing ejection from shower nozzle; Mars in flue gas is extinguished by water smoke, and flame-out dust and bulky grain dust descends with water smoke simultaneously, collected by flue-dust retainer; All the other flue gases dehumidify through the dehydration filler, then are discharged by outlet, enter sack cleaner finally by trunk line.In said process, after the dust in flue-dust retainer runs up to some, need open the shoot door cleaning.The water of collecting in flue-dust retainer is got back in tank through overflow pipe and is reused., need regularly add water in tank higher than 500 to 1000 millimeters of the water inlets of water circulating pump for the water surface that guarantees tank.
Except the mode that this enforcement is mentioned, casing can adopt rectangle or other shapes; The quantity of shower nozzle also can be selected one, two, four or more; A plurality of shower nozzles also can only be controlled by a stop valve.Can select three stop valves and six shower nozzles, two serial connections of shower nozzle are one group, then compose in series one road branch road with a stop valve, last three road branch circuit parallel connections, then join with water circulating pump.These mapping modes are all in protection domain of the present utility model.
Above-described embodiment is the better embodiment of utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, within being included in protection domain of the present utility model.