CN2291191Y - Boiler flue desulfurizing and dust-removing purifier - Google Patents

Abstract

The utility model relates to a boiler flue desulfurizing and dust-removing purifier. An annular inertial dust removing cylinder is arranged between a purifying liquid cylinder body and a casing. The lower part of the dust removing cylinder is provided with a gravity dust removing guide blade, the bottom is provided with a dust exhaust opening, and the inertial dust removing cylinder is provided with a gas inlet and a gas outlet. The gas outlet is communicated with an impacting pipe opening which is arranged on the upper part of the purifying liquid cylinder body by a pipeline. An external control cylinder is arranged under the impacting pipe, and a water bath pipe is arranged on the lower part of the external control cylinder. An exhaust opening is arranged on the casing. A sieve plate type steam-water separator is arranged on a gas passage which is arranged in the exhaust opening. The utility model combines dust removing and desulphurization into a whole, having the advantages of favorable effect, small ground occupation, low cost and convenient operation.

Description

The boiler fume desulfurizing and dedusting purifier

The utility model is a kind of flue purifier of boiler, particularly a kind of boiler fume desulfurizing and dedusting purifier.

The gas cleaning of boiler is the main path of air conservation, so large quantities of technical forces is at the various smoke eliminators of research and development, the S channel-type deduster that for example comes into operation at present and a water-bath type desulfurizer, there is following deficiency in existing smoke eliminator: the effect of desulfurization and dedusting is relatively poor, scavenging solution in the desulfurizer is at the cold district easy freezing, so can not use, desulfurization and dedusting are two covering devices, floor space is big, inconvenient operation, the operation investment cost is big and production cost is high, air-introduced machine or be loaded on before the deduster in the existing purifier, or be loaded on after the desulfurizer, it is not the abrasion that is subjected to dust that this structure makes air-introduced machine, be subjected to the corrosion of steam exactly, reduced the service life of air-introduced machine.

The purpose of this utility model provides a kind of novel smoke eliminator, and it can overcome existing shortcoming in the prior art, improves clean-up effect, reduces cost, and reduces floor space, and easy to operate.

The purpose of this utility model is achieved in that it comprises housing and a scavenging solution cylindrical shell that is installed in the housing, it is characterized in that between scavenging solution cylindrical shell and housing, being annular inertial dust collection tube, dedusting tube bottom is provided with the gravitational dust collection guide vane, the bottom is provided with dust-exhausting port, the inertial dust collection tube is provided with air inlet and gas outlet, the gas outlet is connected with pipeline with the impact mouth of pipe that is located at scavenging solution cylindrical shell top, impact tube has the external control tube, the water-bath pipe is installed under the external control tube, housing is provided with exhaust outlet, and the gas passage in the exhaust outlet is provided with the sieve-board type steam-water separator.

For further improving desulfurized effect, be provided with on scavenging solution cylindrical shell limit and tilt to turn one's coat plate.

For making air-introduced machine corrosion and abrasion, the utility model is installed on air-introduced machine on the pipeline between inertial dust collection tube and the impact tube.

For reducing resistance, the utility model can also be lower than the purification liquid level with water-bath pipe on every side, and middle water-bath pipe is higher than liquid level; Or the water-bath pipe of centre is merged into an extra heavy pipe.

The utility model at first carries out inertial dust collection to flue gas, a part of dust is because action of centrifugal force, be thrown out of outside the tube by the hole on the inertial dust collection barrel, also some dust is fallen on the gravity guide vane and by blade by gravity and is discharged by following dust-exhausting port, dust behind the process dry method dust is after entering impact tube, because motional inertia, being cleaned liquid again pounces on and catches some, it is a part of that SO2 is cleaned the liquid absorption simultaneously, pass through the later flue gas of dedusting by the water-bath pipe, in scavenging solution, carry out water-bath, further carry out desulfurization, because scavenging solution forms cascade when dirty on plate is turned one's coat in inclination,, carry out desulfurization and dedusting again so flue gas has carried out a water-bath again during by cascade, through desulfurization and dedusting repeatedly, so the utility model clean-up effect is very good, dedusting can reach 95%-98%, and desulfurization can reach 70%-90%.

The utility model is integrated dust arrester and desulfurizer, has dwindled the floor space of equipment, has reduced the production investment of equipment, operates more convenient; Because the inertial dust collection tube is in the outside of scavenging solution cylindrical shell, be that the scavenging solution cylindrical shell is provided with a heat-insulation layer with the flue gas of high temperature, so can use and scavenging solution can not freeze at low temp area; The installation site of air-introduced machine makes air-introduced machine both can exempt from the dust abrasion in the utility model, has also avoided the corrosion of aqueous vapor simultaneously, has prolonged the service life of air-introduced machine.

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

Fig. 1 is the structure cutaway view of the utility model most preferred embodiment.

Fig. 2 is the schematic diagram of gravitational dust collection guide vane among Fig. 1.

13 is housings among the figure, housing is by last, two partly form down, the centre is linked by flange, the housing middle and lower part is a scavenging solution cylindrical shell 8, scavenging solution is loaded in the cylindrical shell, scavenging solution cylindrical shell outside is the inertial dust collection tube 7 of an annular, have an air inlet 12 and a gas outlet 15 above it, have aperture on the inertial dust collection barrel, after flue gas enters the dedusting tube by air inlet, around the cylindrical shell rotation, in the process of rotation, because action of centrifugal force, dust promptly is thrown out of barrel, enter dust storage chamber 16, discharge by following dry method dust-exhausting port 11, a part of dust is by gravitational dust collection guide vane 9, also discharge by dry method dust-exhausting port 11, and flue gas is entered the impact tube 1 on top by pipeline and air-introduced machine by gas outlet 15, in pipe, descend rapidly, by the water-bath pipe time, remaining dust is because motional inertia drops into the purification liquid level and pounced on and catch, and the water-bath pipe in the present embodiment is a multitube, and pipe 5 on every side inserts and purifies liquid level, middle extra heavy pipe (internal control tube) 3 is higher than liquid level, during gas via-hole water-bath pipe, swash the foam of breaking waves, gas contacts fully with scavenging solution, making partly, SO2 is cleaned the liquid absorption, the scavenging solution that evokes is tilted to flow down by the plate 6 of turning one's coat, and forms cascade, carries out desulfurization and dedusting again by cascade when gas moves upward,, be discharged in the atmosphere by after the separation of sieve-board type moisture trap 4 through the gas that repeatedly purifies by exhaust outlet 14.Moisture trap can be loaded on the external control tube 2 as shown in the figure, also can be loaded on the housing in the outside, is pounced on the dust of grasping by scavenging solution and discharges by the wet method dust-exhausting port shown in the figure 10.

Claims (5)

1, boiler fume desulfurizing and dedusting purifier, it comprises housing and a scavenging solution cylindrical shell that is installed in the housing, it is characterized in that between scavenging solution cylindrical shell and housing, being annular inertial dust collection tube, dedusting tube bottom is provided with the gravitational dust collection guide vane, the bottom is provided with dust-exhausting port, the inertial dust collection tube is provided with air inlet and gas outlet, the gas outlet is connected with pipeline with the impact mouth of pipe that is located at scavenging solution cylindrical shell top, impact tube has the external control tube, the water-bath pipe is installed under the external control tube, housing is provided with exhaust outlet, and the gas passage in the exhaust outlet is provided with the sieve-board type steam-water separator.

2,, it is characterized in that being provided with and tilt to turn one's coat plate on scavenging solution cylindrical shell limit according to the said purifier of claim 1.

3,, it is characterized in that air-introduced machine is installed on the pipeline between inertial dust collection tube and the impact tube according to the said purifier of claim 1.

4, according to the said purifier of claim 1, the water-bath pipe around it is characterized in that is lower than the purification liquid level, and middle water-bath pipe is higher than liquid level.

5, according to claim 1 or 2 said purifiers, the water-bath pipe in the middle of it is characterized in that is merged into an extra heavy pipe.