(1) technical field: coke guide flue dust of the present invention moves to collect and carries and dust-collecting sulfur-removing method, belongs to the separation class (B01D) of physics or chemical method.
(3) summary of the invention:
The coke oven barrier flue dust that the present invention proposes moves collection conveying and dust-collecting sulfur-removing method, is exactly that the existing feed-line of collecting of solution designs the laying complicacy, operation inconvenience; Drag losses is big, and power consumption is high, invests shortcomings such as big.
Its technical scheme is following:
1. the coke oven barrier flue dust moves to collect and carries and dust-collecting sulfur-removing method (Fig. 1); On coke guide 3, establish dust shield 7; Through air-introduced machine 10 and flue 9; It is indoor that dusty gas gets into dust-removal and desulfurizings from dusty gas import 11, contacts after-purification with the atomized liquid point of the limy stone supernatant of shower nozzle 14 ejections, and this method also comprises the following steps: simultaneously
1) the flue dust collecting induction system mainly is made up of air-introduced machine 10, flue 9, the capable flue 22 of U and dust shield 7, and air-introduced machine 10 is fixedly linked with coke guide 3 bases, and with support bar 6 together with dust shield 7 fixed supports; Go into the gathering system (containing flue 9) that is fixed on the coke guide 3.
2) movable Hanging roller 12 is established at the capable flue of U top; Make the capable flue of U be suspended on dust-removal and desulfurizing indoor inner room passage 26 sky (as shown in Figure 1); Flue dust collecting induction system (containing the capable flue of U) is under the motive traction of coke guide; Because of the design of pulley 2 and movable Hanging roller 12, can move together along track 1 parallel direction.
3) see Fig. 1, movable Hanging roller 12 is by fixedly hanger rail 12.1, pulley 12.2, fixed derrick 12.3 are formed.
4) establish movable bolt 5 and active connection place 8 in the gathering system, dust shield 7 can be moved above coke guide 3.
5) see Fig. 1, spray system is made up of pump 18, desulfurizing agent pipeline 17, shower nozzle 14.
6) dedusting and desulfurization chamber is in the same place with delivery system incorporates; Design through baffle plate (wall) 13; Dedusting and desulfurization chamber is divided into inner room 24 and mistress's 25 (see figure 1)s, and the baffle plate between the inside and outside chamber (wall) 13 inserts liquid level 16 and forms trap, makes dusty gas not be spilled over to the mistress from inner room.
7) see Fig. 1, at the bottom of pond cover plate 21, bay wall 23, the pond 19, liquid level 16, baffle plate (wall) 13 form an airtight relatively space inner room passage 26.
8) see Fig. 1, inner room passage 26 is communicated with external pipe duct, and clean gas is through external pipe duct discharging.
9) throw in lime stone 15 in the water and process the lime stone supernatant, also can use other desulfurizing agent as the desulfurizing agent (see figure 1).
10) see Fig. 1, the trap Channel Design at the bottom of pulley 2, movable Hanging roller 12 and baffle plate 13 and the pond between 19 is guaranteeing that U type flue 22 can move in this liquid; And the capable flue of U moves accessible mobile design along the parallel track direction; Cause whole flue dust collecting induction system to dismantle or to reset; After when coke oven discharges of the coke, accomplishing the collection and dust-removal and desulfurizing work of flue dust; Under the motive traction of coke guide, this system begins next workflow along track 1 parallel direction and coke guide 3 whole another hole sites of the discharging of the coke of moving.
2. see Fig. 1, from the high velocity air that dusty gas import 11 is come out, move downward impact liquid level 16, swashing the foam of breaking waves also contacts mixing with it with foam, produces the dust-removal and desulfurizing clean-up effect.
3. see Fig. 1; The dusty gas that comes out from dusty gas import 11; Because inner room passage 26 sectional area sudden enlargements (comparing) with the sectional area of dusty gas import 11; Air velocity reduces rapidly, and the dust granules in the air-flow just descends with certain sinking speed constant speed under the effect of self gravitation very soon.Through behind the certain hour, grit is deposited to the inner room bottom gradually, from air-flow, separates.
4. see Fig. 1, at inner room passage 26 densely covered shower nozzles 14; Shower nozzle 14 is not influencing pulley 12.2 under the prerequisites of fixedly hanger rail 12.1 normal slips, and parallel direction is evenly gathered; The design of desulfurizing agent pipeline 17 is also as shown in Figure 1, can not produce obstacle to the normal slip of fixed derrick 12.3 and slide rail 12.2; The lime stone supernatant is through shower nozzle 14 atomizing, and even dispersion riddles inner room passage 26, fully contacts with dusty gas, produces the dust-removal and desulfurizing clean-up effect.
5. see Fig. 1, dust-contained airflow runs into compelled the turning in liquid level 16 backs from dusty gas import 11 downward high-speed motions, and coarse granule is caught under effect of inertia and down, is reached clean-up effect.
6. dust-contained airflow makes liquid level form wave in inner room passage motion (flowing), has increased the contact area of liquid level flue gas, has further strengthened the dust-removal and desulfurizing clean-up effect.
7. external pipe duct with link to each other with inner room passage 26; External pipe duct is divided into upper and lower two parts, and top is the passage of dusty gas, and the bottom is the lime stone supernatant, the space shower nozzle that gathers up, and the lime stone supernatant carries shower nozzle atomizing back contact with flue gas through pipeline, continuation generation dust-removal and desulfurizing clean-up effect.
Beneficial effect of the present invention:
I. the present invention combines collecting and conveying system and dusting and desulfuring system, and one-time investment is few, and operating cost is low;
Ii. movable Hanging roller 12, the accessible mobile design of the trap of the capable flue of U between inside and outside chamber; Cause the pipe flange of whole flue dust collecting induction system to dismantle or to reset; After when coke oven discharges of the coke, accomplishing the collection and dust-removal and desulfurizing work of flue dust; Under the motive traction of coke guide, this system begins next workflow along track 1 parallel direction and coke guide 3 whole another hole sites of the discharging of the coke of moving.Design practicality ingenious, simple to operate.
Iii. shortened the length of conveyance conduit widely, made the drag losses of whole collection and induction system little, energy-conservation;
Iv. the lime stone supernatant has been realized recycling, water saving;
V. whole dusting and desulfuring system combines multiple dust-cleaning principle and methods such as water smoke (film) spray, impact type water film dedusting, gravitational settling, and dust-removal and desulfurizing is effective;
Vi. the lime stone supernatant is cheap and easy to get, practicality;
Vii. mistress's channel open design, lime stone supernatant add, observe conveniently; Also be convenient to pool bottom sludge cleaning outward transport.Channel Design at the bottom of baffle plate 13 and the pond between 19 is guaranteeing that U type flue can move herein, needs to overhaul at shower nozzle 14 simultaneously, cleans, when changing, after the extraction of the lime stone water in the inside and outside chamber, can overhaul, clean, change by safe ready entering inner room.
(5) specific embodiment:
The coke guide flue dust of present embodiment move collect to carry and dust-collecting sulfur-removing method following:
1) sees Fig. 1, on coke guide 3, establish movable bolt 5, support bar 6, be connected with flue 9, after will blocking flue dust that burnt process produces and collect by air-introduced machine 10, get into inner room passages 26 through U type flue 22 through dust shield 7 through active connection place 8 with dust shield 7 fixed supports.
See Fig. 1, dust-contained airflow rushes at liquid level 16 at a high speed downwards in dusty gas import 11, swashes the foam of breaking waves also to contact mixing with it with foam, produces the dust-removal and desulfurizing clean-up effect.
Simultaneously, dust-contained airflow runs into compelled the turning in liquid level 16 backs, and coarse granule is caught under action of inertia and down, is reached the udst separation effect.
Then, because inner room passage 26 sectional area sudden enlargements (comparing with the sectional area of dusty gas import 11), air velocity reduces rapidly, and the dust granules in the air-flow just descends with certain sinking speed constant speed under the effect of self gravitation very soon.Through behind the certain hour, grit is deposited to the inner room bottom gradually, from air-flow, separates.
See Fig. 1, above inner room passage 26, establish shower nozzle 14, through pump 18, desulfurizing agent pipeline 17 at inner room passage 26, fully contacts desulfurization aqua atomized spray with dusty gas, produces the dust-removal and desulfurizing clean-up effect.
External pipe duct with link to each other with inner room passage 26; External pipe duct is divided into upper and lower two parts, and top is the passage of dusty gas, and the bottom is the lime stone supernatant, the space shower nozzle that gathers up, and the lime stone supernatant carries shower nozzle atomizing back contact with flue gas through pipeline, continuation generation dust-removal and desulfurizing clean-up effect.
2) see Fig. 1, through the design of baffle plate (wall) 13, dedusting and desulfurization chamber is divided into inner room 24 and mistress 25, the baffle plate between the inside and outside chamber (wall) 13 inserts liquid level 16 and forms trap, makes dusty gas not be spilled over to the mistress from inner room.
3) see Fig. 1, the trap Channel Design at the bottom of baffle plate 13 and the pond between 19 is guaranteeing that U type flue 22 can move in this liquid; Simultaneously; The design of movable Hanging roller 12; Cause whole flue dust collecting induction system to dismantle or to reset, accomplish the collection and dust-removal and desulfurizing work of flue dust when the discharging of the coke in a certain charcoal chamber of coke oven after, as required under the motive traction of coke guide; This system begins next workflow along track 1 parallel direction and coke guide 3 whole another hole sites of the discharging of the coke of moving.
See Fig. 1, movable Hanging roller 12 is by fixedly hanger rail 12.1, pulley 12.2, fixed derrick 12.3 are formed.