CN2158064Y

CN2158064Y - Gas curtain furnace gate

Info

Publication number: CN2158064Y
Application number: CN 93203652
Authority: CN
Inventors: 丁守宝
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-19
Filing date: 1993-02-19
Publication date: 1994-03-02
Anticipated expiration: 2003-02-19

Abstract

The utility model relates to a gas curtain kiln gate which is related to the kiln gate of the vertical kiln. The gas curtain kiln gate is respectively and correspondingly provided with a gas curtain blowing pipe and a gas curtain suction pipe at the kiln wall outside the gate hole of the kiln gate. The gas curtain blowing pipe is communicated with the blowing port of a blower, and the gas curtain suction pipe is communicated with a suction pipe. When the blower is started, the gas curtain is formed outside the gate hole of the kiln gate, and the convection between the air in the kiln and the air outside the kiln is obstructed. The utility model avoids a series of abuses caused by that the kiln gate is open in running in the practical operation, and can directly observe the running condition in the kiln and the normal poking fire and stirring material operation.

Description

Gas curtain furnace gate

The utility model relates to parts or the annex on the kiln, the particularly technical field of shaft kiln wicket.

In process of production, burner must be often observes feeding intake and combustion conditions in the kiln by the wicket door opening, also will carry out frequent fire and the material toggling of disclosing by the wicket door opening simultaneously.Because the shaft kiln wicket that uses all is that steel plate is made at present, burner just can't observe working order in the kiln when shutting this wicket, especially when disclosing fire with material toggling, wicket needs often to open, and shaft kiln wicket in practical operation in the very loaded down with trivial details most of cement plants of operating process opens wide basically.

The shaft kiln wicket opens wide operation following drawback: the one, because action of thermal difference, the outer a large amount of cold wind of kiln pour in the kiln from the wicket door opening, a large amount of heat energy have not only been taken away, cause the huge waste of the energy, and because rapid variation takes place in the temperature difference of charging chamber in the kiln, cause the explosion breakage of balling-up, cause the reduction of cement heat and output.The 2nd, because the inflow of cold wind reduces flue-gas temperature, the wind turning power of chimney is also corresponding to be reduced, and when running into the lower weather of air pressure, flue gas will be from the ejection of wicket door opening and severe contamination kiln face operating environment makes burner that the carbon monoxide smoke intoxication accident take place.The 3rd, because wicket opens wide, the heat in the kiln directly spreads out of outside the kiln, and the environment temperature of kiln face operating point is raise, and can cause operative employee's high temperature heatstroke at high temperature season.Especially when the spray kiln took place, a large amount of red-hot High Temperature Gas were known from experience ejection rapidly, cause industrial accidents such as burning of burner.

The purpose of this utility model is that a kind of wicket that adapts to the needs of shaft kiln practical operation will be provided, under need not to open the situation of wicket, just can directly observe the operating condition in the kiln and disclose fire and material toggling normally, avoid wicket to open wide operation, eliminate the disadvantage that causes thus.

The technical solution of the utility model is such: a kind of Gas curtain furnace gate, on the kiln wall outside the wicket door opening respectively correspondence air curtain blower and air curtain aspiration channel are set, the air curtain blower is connected with the blowing mouth of hair-dryer, the air curtain aspiration channel communicates with aspiration channel, is provided with air curtain between air curtain blower and the air curtain aspiration channel.

Corresponding air curtain blower and air curtain aspiration channel are set on the kiln wall of the utility model outside the wicket door opening, the air communication that is blown out by hair-dryer is crossed the air curtain blower and is blown out, the air curtain aspiration channel sucks, thereby form air curtain one at the wicket door opening, cut off the convection current of kiln inner air and outer air, avoided directly observing the interior operating condition of kiln, disclosed the operation of fire and material toggling owing to wicket in the practical operation opens wide the defective ， And of operation generation and can see through air curtain.

Fig. 1 is the structural representation of embodiment 1 of the present utility model.

Fig. 2 is the structural representation of embodiment 2 of the present utility model.

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

As shown in Figure 1, on the kiln wall 2 of embodiment 1 both sides outside wicket door opening 1 respectively correspondence air curtain blower 3 and air curtain aspiration channel 4 are set.Air curtain blower 3 is connected by blowing static tube 6 with the blowing mouth of hair-dryer 5.Air curtain aspiration channel 4 communicates by air draught static tube 8 with aspiration channel 7.Aspiration channel 7 connects the air inlet of induced-draught fan 9 and the air inlet of hair-dryer 5, and the air-flow major part is introduced into shaft kiln chimney 10, expels from kiln with flue gas, and another part is sucked by hair-dryer 5, recycles.Described hair-dryer 5, blowing static tube 6, aspiration channel 7, air draught static tube 8, induced-draught fan 9 all places on the kiln hood 11.Open hair-dryer 5 and induced-draught fan 9, between air curtain blower 3 and air curtain aspiration channel 4, just form air curtain together, cut off the inside and outside cross-ventilation of kiln.

As shown in Figure 2, on the kiln wall 2 of embodiment 2 outside wicket door opening 1 respectively correspondence air curtain blower 3 and air curtain aspiration channel 4 are set.Air curtain blower 3 is connected with the blowing mouth of hair-dryer 5 by blowing static tube 6.Present embodiment utilizes the original air blast of shaft kiln to make hair-dryer 5 usefulness.Air curtain aspiration channel 4 communicates with aspiration channel 7, and air communication is crossed aspiration channel 7 and imported chimney 10, expels from kiln.For guaranteeing the suction draught of aspiration channel 7, on blowing static tube 6, be connected to and induce airduct 12, its port of export places in the aspiration channel 7.An air-flow part that is blown out by hair-dryer 5 can directly import aspiration channel 7, produces additional draft.

Claims

1, a kind of Gas curtain furnace gate, it is characterized in that on the kiln wall (2) outside wicket door opening (1) that correspondence is provided with air curtain blower (3) and air curtain aspiration channel (4) respectively, air curtain blower (3) is connected with the blowing mouth of hair-dryer (5), air curtain aspiration channel (4) communicates with aspiration channel (7), is provided with air curtain between air curtain blower (3) and the air curtain aspiration channel (4).

2, Gas curtain furnace gate as claimed in claim 1, it is characterized in that air curtain blower (3) is connected with the blowing mouth of hair-dryer (5) by blowing static tube (6), be connected on blowing static tube (6) and induce airduct (12), its port of export places in the aspiration channel (7).