CN2526298Y

CN2526298Y - Duster of coal truck for coke oven

Info

Publication number: CN2526298Y
Application number: CN 02218954
Authority: CN
Inventors: 朱建荣; 徐卫平; 尹磊; 蒋漪
Original assignee: Zhangjiagang Changli Machinery Co ltd
Current assignee: Zhangjiagang Changli Machinery Co ltd
Priority date: 2002-02-09
Filing date: 2002-02-09
Publication date: 2002-12-18
Anticipated expiration: 2012-02-09

Abstract

The utility model relates to a duster of coal truck for coke oven, which mainly consists of an aspiration channel, and the aspiration channel is connected with the lower side wall of the combustion chamber, and the upper side wall of the combustion chamber is connected with the lower side wall of the cooling chamber through the pipeline. The cavity of the cooling chamber is provided with a water nozzle. The upper side wall of the cooling chamber is connected with the wet type duster in opposite spraying manner, and the upper side wall of the wet type duster in opposite spraying manner is connected with the inlet of the venture dust removal pipe, and the outlet of the venture dust removal pipe is connected with the lower side wall of the dehydration demister, and the upper side wall of the dehydration demister is connected with the induced draft fan through the pipeline. The duster is positioned on the coal truck, which can effectively eliminate the flue dust and raw gas produced in loading the coal to the coke oven, thereby effectively protecting the atmosphere environment and the health of operation workers.

Description

The dust collector of coke oven in the charging car

Technical field

The utility model relates to the coke oven charging car, refers more particularly to the dust collector that is configured in the charging car.

Background technology

Charging car is to push up the main tool that is used in the formula coking coke oven for iron of coalingging to the coke oven coal; Traditional charging car mainly is made up of frame and the coal bunker, operator's compartment and the traveling transmission device that are arranged on the frame; For the coke oven of different structure, on a charging car, may need to dispose one or several coal bunker; Charging car walking is on the rail that is layed in above the coke oven furnace roof.The working process of charging car is as follows: operating personal is operated control in operator's compartment, and charging car operates on the rail under the driving of traveling transmission device; Charging car is moved under the coal tower, allow the material receiving port of the coal bunker on the charging car aim at the Xia Meikou of coal tower, open the gate of the following coal mouth of coal tower, the a/s amount of coal in the coal tower is joined in the coal bunker by the switching mechanism on the coal tower; Charging car runs to the top of the coke oven firehole that need coaling again then, opens the bell on the coke oven firehole earlier, makes the firehole of the discharging opening aligning coke oven of coal bunker again, and the coal in the coal bunker is joined in the coke oven, has so just finished a coal job.

From the above mentioned as can be known, its firehole opens wide during the coke oven coal, thereby flue dust and raw coke oven gas in the body of heater will escape in a large number, again because the used coal of coking Pulverized Coal normally, in the process in Pulverized Coal drops to coke oven, under the action of high temperature in coke oven, Pulverized Coal can produce a large amount of flue dust and raw coke oven gas again, these flue dust and raw coke oven gas all can fly away in the atmosphere, and operator's health is caused serious injury, and environment is caused gross pollution.

Summary of the invention

For solving above-mentioned pollution problem, the utility model will provide a kind of dust collector, and this kind dust collector can be removed flue dust and raw coke oven gas after being fitted on the charging car that coke oven uses effectively.

The technical solution adopted in the utility model is: described coke oven mainly comprises with the dust collector in the charging car: aspiration channel, aspiration channel is connected with the lower wall of combustion chamber, the upper side wall of combustion chamber is connected with the lower wall of cooling chamber by pipeline, in cooling chamber's inner chamber water jet is installed; The upper side wall of cooling chamber is connected with contrary spray type wet dust collector by pipeline, the upper side wall of contrary spray type wet dust collector is connected by the import of pipeline with the shaped Venturi dedusting pipe, the outlet of shaped Venturi dedusting pipe is connected with the lower wall of dehydrating demisting device, and the upper side wall of dehydrating demisting device is connected with induced draft fan by pipeline.

The utility model has the advantages that: the above-mentioned dust collector of configuration on charging car, can remove flue dust and the raw coke oven gas that is produced when in coke oven, coalingging effectively, protected effectively that air environment and operator's is healthy.

Description of drawings

Fig. 1 is the main TV structure scheme drawing of dust collector described in the utility model;

Fig. 2 is the left TV structure scheme drawing of Fig. 1;

Fig. 3 is the structural representation of combustion chamber in the described dust collector;

Fig. 4 is the structural representation of dehydrating demisting device in the described dust collector;

Fig. 5 is the plan structure scheme drawing of Fig. 4;

Fig. 6 is the structural representation that described dust collector is configured in a kind of embodiment on the charging car;

Fig. 7 is the birds-eye view of Fig. 6.

Embodiment

Below in conjunction with the drawings and specific embodiments technical scheme described in the utility model and principle of work thereof and advantage are further described.

As shown in Figure 1 and Figure 2, coke oven described in the utility model mainly comprises with the dust collector in the charging car: aspiration channel 11, aspiration channel 11 is connected with the lower wall of combustion chamber 1, the upper side wall of combustion chamber 1 is connected by the lower wall of pipeline with cooling chamber 2, and water jet 17 is installed in the inner chamber of cooling chamber 2; The upper side wall of cooling chamber 2 is connected with a contrary spray type wet dust collector 3 by pipeline, the upper side wall of contrary spray type wet dust collector 3 is connected by the import of pipeline with shaped Venturi dedusting pipe 15, the outlet of shaped Venturi dedusting pipe 15 is connected with the lower wall of dehydrating demisting device 4, and the upper side wall of dehydrating demisting device 4 is connected with induced draft fan 5 by pipeline.

In the present embodiment, as shown in Figure 3, the bottom of combustion chamber 1 also offers air intake 12.

As Fig. 4, shown in Figure 5, in the inner chamber of dehydrating demisting device 4, be provided with manger 22, the importer of the gas approach 21 of dehydrating demisting device 4 is to consistent with the tangential direction of the cavity circumference of dehydrating demisting device 4.

As Fig. 6, shown in Figure 7, be that dust collector described in the utility model is configured in a kind of embodiment on the charging car.As can be seen from the figure, traditional charging car mainly is made up of frame 9 and the coal bunker 24, operator's compartment 25 and the traveling transmission device 26 that are arranged on the frame 9; As shown in Figure 7, when disposing dust collector on the frame 9 of charging car, the inlet scoop 28 of aspiration channel in the dust collector 11 need be arranged near the discharging opening 27 of coal bunker 24, pick-up performance can be better like this.

The principle of work of dust collector described in the utility model is as follows: one, as shown in Figure 6, when coal bunker 24 in coke oven during coal, start immediately drive induced draft fan 5 electrical motor 8-promptly: induced draft fan 5 is started working; Like this, as shown in Figure 7, flue dust that produces in the coke oven and raw coke oven gas will be drawn in the combustion chamber 1 by aspiration channel 11, the purpose that combustion chamber 1 is set is: the flue dust and the raw coke oven gas that produce during owing to coking are combustible materials, just emit without economic combustion and not only to be difficult to carry out abatement processes, and the accident of very likely can blasting.In the present embodiment,, as shown in Figure 3, also offer secondary air inlet 12 in the bottom of combustion chamber 1, in addition, ignition device 18 can also be set at the gas approach position of combustion chamber 1 for guaranteeing these combustible material economic combustions; Generally speaking, the raw coke oven gas itself that is drawn into from coke oven in the combustion chamber 1 has flare, need not to use ignition device 18, can further guarantee normal operation but ignition device 18 is set; On the madial wall of combustion chamber 1, can also lay fire brick 20.Two, in combustion chamber 1 clean-burning flue gas under the effect of induced draft fan 5, be inhaled in the cooling chamber 2, as shown in Figure 2, the structure of cooling chamber 2 is identical with the structure of the suitable spray type wet dust collector of using always, but owing to the temperature of the flue gas that comes out from combustion chamber 1 is very high, generally can reach more than 1000 ℃, so the water droplet that the water jets 17 in the cooling chamber 2 are sprayed is bigger, to prevent that water from dripping by high temperature evaporation, loses cooling effect; These are different with the intimate vaporific water droplet that water jet sprayed in the general suitable spray type wet dust collector, and the former mainly plays the effect of cooling, and the latter mainly plays the effect of dedusting.Three, as shown in Figure 2, the flue gas that comes out in the cooling chamber 2 is inhaled in the contrary spray type wet dust collector 3, water jet 13 in the contrary spray type wet dust collector 3 is the vaporific water droplet of ejection downwards, and flue gas upwards flows, like this, droplet and flue gas form inverse motion, therefore flue gas and droplet at inertial collision, hold back, under the effect of effect such as cohesion, the dust in the flue gas is captured by drop, under the effect of gravity, the dust-laden drop is fallen into the bottom, discharges with cleansing fluid at last; Approximately can remove the flue dust about 70% here.Four, the flue gas of handling through contrary spray type wet dust collector 3 is inhaled into again in the shaped Venturi dedusting pipe 15, as shown in Figure 2, shaped Venturi dedusting pipe 15 is a kind of along spray type wet dust collector, when flue gas enters into the shrinking zone of shaped Venturi dedusting pipe 15, because cross-sectional area dwindles gradually, static pressure also gradates and is kinetic energy in the pipe, velocity in pipes is increased, high velocity air impacts the cleansing fluid that the water jet 14 in the shaped Venturi dedusting pipe 15 is sprayed, make cleansing fluid further be atomized into more tiny droplet, and the gas in the pipe, liquid, the relative velocity of solid-state grit three-phase is all very big, and they are mixed more fully, thereby has increased the collision opportunity of grit and drop; On the other hand, close because cleansing fluid atomizing fully, makes gas in the pipe reach full, thereby destroyed the air film on grit surface, grit is wetting by aqueous vapor fully; When air-flow enters into the diffusion region of shaped Venturi dedusting pipe; because cross-sectional area enlarges gradually; static pressure in the pipe is restored gradually; air-flow velocity also descends gradually; these are by between the wetting grit and droplet of aqueous vapor; and between the grit or droplet of different-grain diameter, under the effect of different force of inertias, be condensed into the bigger dust-laden drop of particle diameter in the collision mutually.Five, as shown in Figure 2, formed bigger dust-laden drop enters into dehydrating demisting device 4 with air-flow in shaped Venturi dedusting pipe 15, here need to prove, in common environmental protection dusting equipment, dehydrating demisting device 4 generally all with shaped Venturi dedusting pipe 15 use that complements one another, that is: shaped Venturi dedusting pipe 15 and dehydrating demisting device 4 use that connects together, this is a kind of dust collection method commonly used; As Fig. 4, shown in Figure 5, because the direction of the gas approach 21 of dehydrating demisting device 4 is consistent with the tangential direction of the cavity circumference of dehydrating demisting device 4, therefore, the flue gas that enters dehydrating demisting device 4 can rotate in its cavity, like this, under gravity, force of inertia and action of centrifugal force, big dust-laden drop in the flue gas can be separated from air-flow, water smoke in the flue gas is then isolated by the manger in the cavity 22, under the effect of self gravitation, the moisture of these dust-ladens is last all discharges from the bottom of dehydrating demisting device 4 together.Six, as shown in Figure 2, through the gas that dehydrating demisting device 4 was handled, be cleaning, dust free gas; under the continuation effect of induced draft fan 5; through induced draft fan 5 and being drained in the atmosphere, stopped the institute of air environment is polluted, protected effectively that the operator's is healthy.

In concrete implementation process, as Fig. 1, shown in Figure 6, can suit measures to local conditions in the downside configuration clear water tanks 10 and the foul water tank 7 of the frame 9 of charging car, respectively as water purification source and sewage collector, and then on frame 9, dispose priming device in addition, the water in the clear water tanks 10 is offered parts such as the cooling chamber 2 in the dust collector, contrary spray type temperature formula dust exhaustor 3, shaped Venturi dedusting pipe 15 use by water pipe 23; As shown in Figure 2, in addition again by sewer line 16 with the sewage collecting in the above-mentioned parts in foul water tank 7, wait further processes.Certainly, also can be at other local configuration water purification source and sewage collector in addition, as long as can guarantee that described dust collector can normal operation.

In addition, because coke oven for different structure, on a charging car, may need to dispose one or several coal bunker 24, therefore, correspondingly in dust collector, also need to dispose one or several aspiration channel, as shown in Figure 1, schematically on combustion chamber 1, also dispose an aspiration channel 6 among the figure, in Fig. 3, also schematically shown two ventilation inlets 19; In real work, can be according to the concrete needs of coke oven, one or several ventilation inlet of configuration and one or a few aspiration channel on combustion chamber 1.

Claims

1, the dust collector of coke oven in the charging car, it is characterized in that: described dust collector mainly comprises: aspiration channel, aspiration channel is connected with the lower wall of combustion chamber, and the upper side wall of combustion chamber is connected with the lower wall of cooling chamber by pipeline, in cooling chamber's inner chamber water jet is installed; The upper side wall of cooling chamber is connected with contrary spray type wet dust collector by pipeline, the upper side wall of contrary spray type wet dust collector is connected by the import of pipeline with the shaped Venturi dedusting pipe, the outlet of shaped Venturi dedusting pipe is connected with the lower wall of dehydrating demisting device, and the upper side wall of dehydrating demisting device is connected with induced draft fan by pipeline.

2, dust collector as claimed in claim 1 is characterized in that: the bottom at combustion chamber also offers air intlet.

3, dust collector as claimed in claim 1 is characterized in that: be provided with manger in the inner chamber of dehydrating demisting device, the gas approach direction of dehydrating demisting device is consistent with the tangential direction of the cavity circumference of dehydrating demisting device.