CN2600720Y

CN2600720Y - Cement shaft kiln smoke diversion dust removing desulfurization device

Info

Publication number: CN2600720Y
Application number: CN 03211291
Authority: CN
Inventors: 关云彪; 关春艳
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-30
Filing date: 2003-01-30
Publication date: 2004-01-21
Anticipated expiration: 2013-01-30

Abstract

The utility model relates to a dedusting device of a dust cement plant chimney and is a cement shaft kiln dust shunt, dedust and desulphurization device. The utility model comprises an ash water precipitation body pool which is designed combining the platform area of the crown of the cement shaft kiln and a load bearing structure corresponding to each chimney. A hole for the extension of the chimney of the cement shaft kiln from the bottom of the pool and a peripheral steel-protecting sleeve are arranged in the pool. A spraying tower with a discharging chimney is arranged on the inner seat of the pool. The chimney of the cement shaft kiln is communicated and connected with an inclined upward diffusion flue. A clean water influx tank is arranged in the pool positioned behind the spraying tower, and is communicated and connected with the pool through a clean water backflow ditch positioned on the edges of the pool. The upper part of the spraying tower is connected with the clean water influx tank through a water distribution main pipe and a spraying circulated water pump. The utility model has the features of simpleness, practicability, and good effects of dust collecting and desulphurization.

Description

Cement in vertical kiln flue dust shunting dust-removing desulfurating apparatus

Technical field: the utility model relates to a kind of cement plant chimney dust collecting device, i.e. cement in vertical kiln flue dust shunting dust-removing desulfurating apparatus.

Technical background: in prior art, shaft kiln still accounts for sizable ratio in China manufacture of cement producer, and quite high economic benefit is arranged.In order to solve the pollution of shaft kiln flue dust to atmosphere, domestic priority has dry type sedimentation storehouse, rotoclone collector, the simple and easy water spray on two chimney cowls, the big cloth bag of glass, or what is called dewfall electrostatic precipitator or the like never.Application result respectively has tangible weak point.For example dry type sedimentation storehouse and rotoclone collector can not be up to standard, and it is too big that the simple and easy water spray on two chimney cowls draws the chimney section, and not having provides a large amount of power water under the very big recirculated water of power consumption, and spray puts in place, just is difficult to thoroughly up to standard.The big cloth bag of glass effectively gathers dust really, efficiently up to standard, but one-time investment is too high, operating cost is higher.The shaft kiln that 1 8.85 ten thousand tons of/year unit-hour output reach the 6-7 ton not only needs the air-introduced machine of nearly hundred kw of power, only regularly replaces a glass fibre bag and just will drop into sizable financial charges, and general small cement plant man does not rise on being more with not rising, and does not have desulfidation.Investment cost of electrostatic dust collection of so-called never dewfall is also higher, finds the example of energy lasting stability operation up to standard as yet, and equally can not desulfurization.

The utility model content: the purpose of this utility model is to provide a kind of simple and practical at above-mentioned deficiency, the cement in vertical kiln flue dust shunting dust-removing desulfurating apparatus that the desulfurized effect that gathers dust is good.

Technical solution of the present utility model is: cement in vertical kiln flue dust shunting dust-removing desulfurating apparatus comprises in conjunction with the designed grey water sedimentation body pond of corresponding each chimney with load-carrying members of cement in vertical kiln kiln roof panel area, water supply mud shaft kiln chimney arranged from hole that the pond end stretch goes out and steel plate sheath on every side in the pond; Seat has the spray column of band discharging chimney in the pond, and the cement in vertical kiln chimney is connected with the spray column connection by spreading flue obliquely; The pond has clear water at the spray column rear portion and compiles the pond, connects with the pond by the primary water backflow ditch at edge, pond to be connected, and spray column top is compiled between the pond with clear water and is connected with water circulating pump by cloth supply mains, spray.

Described spray column pounces on the collection chamber by the pouring of wedged bottom water and recirculated water dish reinforcement spray chamber is combined into spray column up and down; The bottom of tower is to a direction inclination wedged bottom, and has certain space, top is the hemispherical dome body one awl cap of each single tower, awl cap top is strengthened spray chamber with circular recirculated water dish and is connected, wedged bottom bottom links to each other with an elongated water distribution groove, is provided with several turnovers rubber plug valve that discharges water on the water distribution groove again; The dish valve is connected the spray that links to each other with water circulating pump, cloth supply mains and in the recirculated water dish is strengthened spray chamber.

The pond is divided into two parts according to two chimney positions of cement in vertical kiln, and each part can be divided into two intervals, and whole pond amounts to four intervals, and each chimney one side has two spray columns side by side.

The utility model has the advantages that: 1, in conjunction with the both sides of the rectangular pool angle symmetry of cement in vertical kiln kiln roof panel design, each installs a cover tower group, utilize several single towers of each tower group, larger-diameter kiln chimney is split into some minor diameters sprays single tower and discharging chimney, be convenient to flue gas reduction of speed, water spray and put stably reaching standard in place.2,, install upright tower group at the main weight-bearing position of kiln roof panel in conjunction with shaft kiln and mill construction.3, the kiln cigarette is by the logical people's tower group of fan-shaped diffusion flue obliquely, the water of the wedged bottom that each chamber communicates drenches that to pounce on collection indoor, because capacity strengthens, is detained, homogenizing, flue dust concentration after spreading reduces, and at first obtains preliminary cleaning dust, the desulfurization of " heavy rain " of each tower top under spilling.4, after flue gas enters recirculated water reinforcement spray chamber by the awl cap, stand power water sprays into the water curtain of dish shape in the middle of circular channel pressure washing.This dish shape water curtain can be broken into the abundant spray and the spittle under supporting air blast wind blows from bottom to top, have very big adsorption specific surface area.The rectangular pool that plays on efficient desulfurizing and dust collecting 5, the kiln face designs in conjunction with turnover alternate application characteristics.Edge, top, pond and set track and the slag pan car on the track can be pushed labor cleaning's lime-ash (containing the grog composition) to an inclination and refund the receipts use.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Description of drawings: Fig. 1 is a structure diagram of the present utility model;

Fig. 2 is the plan structure sketch of Fig. 1;

Fig. 3 is that the recirculated water dish is strengthened the spray chamber structure diagram.

The specific embodiment: referring to Fig. 1, China's cement in vertical kiln is concrete frame structure factory buildings of overcoat all basically, and all there is factory building roof at its kiln top as the kiln roof panel, have two chimneys of shaft kiln to stretch out at the midline position of roofing, the discharging exhaust gas dust is the most important pollution sources in cement plant.The utility model designs with regard to the design feature of utilizing the kiln roof panel.Cement in vertical kiln flue dust shunting dust-removing desulfurating apparatus comprises in conjunction with the designed grey water sedimentation body pond 6 of corresponding each chimney with load-carrying members of cement in vertical kiln kiln roof panel area 1, water supply mud shaft kiln chimney 1 is arranged from hole that the pond end stretch goes out and steel plate sheath 18 on every side in the pond 6, for preventing that the extending area from leaking, need to make the outer steel plate sheath 18 of a circle, be welded in the circular hole position of being cut at the bottom of the pond around chimney.Seat has the spray column of band discharging chimney 5 in the pond 6, and cement in vertical kiln chimney 1 is connected with the spray column connection by spreading flue 2 obliquely; Pond 6 has clear water at the spray column rear portion and compiles pond 10, connects with pond 6 by the primary water backflow ditch 7 at 6 edges, pond to be connected, and spray column top is compiled between the pond 10 with clear water and is connected with water circulating pump 11 by cloth supply mains 12, spray.

Described spray column pounces on collection chamber 3 by the pouring of wedged bottom water and recirculated water dish reinforcement spray chamber 4 is combined into spray column up and down; The bottom of tower is to a direction inclination wedged bottom 19, and has certain space, top is the hemispherical dome body one awl cap of each single tower, awl cap top is strengthened spray chamber 4 with circular recirculated water dish and is connected, wedged bottom bottom links to each other with an elongated water distribution groove 8, is provided with several turnovers rubber plug valve 9 that discharges water on the water distribution groove again; The dish valve is connected the spray that links to each other with water circulating pump 11, cloth supply mains 12 and in the recirculated water dish is strengthened spray chamber 4.

Wedged bottom water drench chimney fan that awl cap one side pounce on collection chamber 3 drives cigarette blower fan 15 by atomizing stretch in the awl cap and bending upwards, drive cigarette and the atomizing spray is used to do.

Referring to Fig. 2, original two chimneys 1 of shaft kiln are stretched out by cyclotomy hole, 6 base plate center line position, pond, and pond 6 is divided into two parts according to two chimney 1 positions of cement in vertical kiln, and each part can be divided into two intervals, whole pond amounts to four intervals, and each chimney one side has two spray columns side by side.Each single tower awl cap is independent with the upper part, and the following wedged bottom water of awl cap drenches and pounces on collection chamber 3 and communicate, not the interval.

Chi Ding prolongs diagonal and establishes elongated track 16, and special-purpose slag pan car 17 is arranged on the track.

Referring to Fig. 3, be provided with two dish shape shower nozzles 14 in the recirculated water dish reinforcement spray chamber 4, be connected with spray arm 13 respectively.

The cement in vertical kiln flue dust upwards enters original two groups of chimneys 1, the dome sealing that can open is at any time arranged at two groups of chimney 1 tops of shaft kiln, changing direction has the different fan-shaped obliquely diffusion flue 2 of direction by the side, and the wedged bottom water that leads to the both sides, diagonal angle drenches the preliminary washing of pouncing on after spread collection chamber 3.Wedged bottom water drenches the top pounce on collection chamber 3 have been assembled the recirculated water dish and has strengthened the dust flow depth degree washing, purifying that spray chamber 4 will continue rising.Pouncing on the water that is used to wash in the collection chamber 3 in the pouring of wedged bottom water is to clash into cylinder inner wall and the spray " heavy rain " of the whereabouts of rebounding from the dish shape water curtain that spray on top.Having in the recirculated water dish is strengthened spray chamber 4 so from water circulating pump 11 provides, and certain pressure head is arranged, and by special water dish shower nozzle, being sprayed into water discoid is dish shape water curtain.The wind-force that drives cigarette blower fan 15 in atomizing from bottom to top brushes down, and water curtain is fragmented into and enriches spray, steam fog space intensive, the whole flue of sealing.The flue gas after being purified in-line arrangement is put chimney 5 to airborne release.Drenching the buck of pouncing under washing in collection chamber 3 and the recirculated water dish reinforcement spray chamber 4 at wedged bottom water flows in the water distribution groove 8 along the slope, discharge water in the turnover pond of institute's desire selection work by the rubber plug valve 9 that discharges water of several turnovers in the water distribution groove 8 again, making lime-ash precipitation primary water flow to wedged bottom water via the primary water backflow ditch 7 at edge, pond drenches the primary water of pouncing on collection 4 bottoms, chamber and compiles pond 10, pump up water with water circulating pump 11 suctions by spray, use repeatedly.Swimming on the precipitation ash bed in buck precipitate and separate turnover pond 6, to the pond, next door, the ash bed that exposes is shifted an inclination onto by labor cleaning's pond top rail slag pan car 16 of packing into by submerged sewage pump row.

The utility model is in conjunction with what of the size in cement in vertical kiln kiln footpath and unit-hour output, institute's budgetary estimate goes out the per hour maximum exhaust gas volumn of discharging, and long 8000～12000mm, wide 7000～10000mm are made in the body pond, the pond height limits in the 1000mm, and working water level is between 800～900.Also between ￠ 800-￠ 1200, the pouring of wedged bottom water is pounced on the overall dimensions of collection chamber between 3500 * 1000～5000 * 1800 to the internal diameter of spray main body water dish chamber.The diameter of discharging chimney is between ￠ 800～￠ 1100, and discharging chimney height generally is not less than 10000mm.If but set up the kiln axial-flow fan special on the discharging chimney, the chimney height could reduce.

Claims

1, a kind of cement in vertical kiln flue dust shunting dust-removing desulfurating apparatus, it is characterized in that comprising in conjunction with the designed grey water sedimentation body pond (6) of cement in vertical kiln kiln roof panel corresponding each chimney of area (1) water supply mud shaft kiln chimney (1) is arranged in pond (6) from hole that the pond end stretch goes out and steel plate sheath (18) on every side with load-carrying members; Seat has the spray column of band discharging chimney (5) in the pond (6), and cement in vertical kiln chimney (1) is connected with the spray column connection by spreading flue (2) obliquely; Pond (6) has clear water and compiles pond (10) at the spray column rear portion, primary water backflow ditch (7) by edge, pond (6) is connected with pond (6) connection, and spray column top is compiled between the pond (10) with clear water and is connected with water circulating pump (11) by cloth supply mains (12), spray.

2,, it is characterized in that described spray column is pounced on collection chamber (3) by the pouring of wedged bottom water and recirculated water dish reinforcement spray chamber (4) is combined into spray column up and down according to the described cement in vertical kiln flue dust shunting of claim 1 dust-removing desulfurating apparatus; The bottom of tower is to a direction inclination wedged bottom (19), and has certain space, top is the hemispherical dome body one awl cap of each single tower, awl cap top is strengthened spray chamber (4) with circular recirculated water dish and is connected, wedged bottom bottom links to each other with an elongated water distribution groove (8), is provided with several turnovers rubber plug valve (9) that discharges water on the water distribution groove again; The spray that links to each other is strengthened the interior dish valve of spray chamber (4) with water circulating pump (11), cloth supply mains (12) with the recirculated water dish and is connected.

3, according to the described cement in vertical kiln flue dust of claim 2 shunting dust-removing desulfurating apparatus, it is characterized in that wedged bottom water drench chimney fan that awl cap one side of pouncing on collection chamber (3) drives cigarette blower fan (15) by atomizing stretch in the awl cap and bending upwards.

4, according to the arbitrary described cement in vertical kiln flue dust shunting dust-removing desulfurating apparatus of claim 1 to 3, it is characterized in that pond (6) is divided into two parts according to two chimney positions of cement in vertical kiln, each part can be divided into two intervals, whole pond amounts to four intervals, and each chimney one side has two spray columns side by side.

5, according to the described cement in vertical kiln flue dust shunting of claim 4 dust-removing desulfurating apparatus, it is characterized in that Chi Ding prolongs diagonal and establishes elongated track (16), special-purpose slag pan car (17) is arranged on the track.