CN205860056U - The water of the outdoor flue of a kind of silicon production mineral hot furnace drenches chiller - Google Patents

Abstract

This utility model discloses the water of the outdoor flue of a kind of silicon production mineral hot furnace and drenches chiller, and including water inlet pipe, shower, water leg, return pipe, cooling pond, described shower is positioned at the top of outdoor flue, moves towards to arrange along outdoor flue；Described water leg is positioned at the lower section of outdoor flue, water leg connection return pipe；Described cooling pond is divided into clear water zone and settling zone by dividing plate, and dividing plate top is less than cooling pond Chi Kou；Described water inlet pipe connection shower, water inlet pipe is provided with clarified water pump, ball valve；The outlet of described return pipe is positioned at the settling zone of cooling pond, and described water inlet pipe water inlet is positioned at the clear water zone of cooling pond.Beneficial effect: 1, when working of a furnace deterioration accident occurs in silicon production process, it is not necessary to open the in line flue gas of accident chimney, effectively protect environment；2, after spray system is opened, can outdoor flue outside wall temperature be controlled below 200 DEG C, effectively protect the safe operation of outdoor flue.

Description

The water of the outdoor flue of a kind of silicon production mineral hot furnace drenches chiller

Technical field

This utility model belongs to silicon production technical field, and the water of the outdoor flue of a kind of silicon production mineral hot furnace drenches Chiller.

Background technology

Silicon is one of important materials during modern industry produces, and purposes is quite varied, can be applicable to electronics, steel-making, optics, machine The fields such as tool, automobile making, chemical industry, metallurgy, medicine, national defence, are described as " industry monosodium glutamate ".Silicon is in semi-enclosed mineral hot furnace Being carried out continuously production, primary raw material is Silicon stone and carbonaceous reducing agent, makes silicon dioxide be reduced into simple substance by electric arc heated Silicon.Mineral hot furnace main body mainly includes body of heater, watercooled hood and smoke evacuation system three part.The waste gas that silicon smelting process produces, through water Cold smoke cover, smoke evacuation system pipeline enter exhaust heat recovery power generation, discharge after entering cleaner unit purified treatment the most again.

In silicon smelting process, furnace charge is added by heat and the arc heat of electrode tip that electric current is produced by electrode and charging resistance Heat is to more than 2000 DEG C, and the flue gas that mineral hot furnace watercooled hood is discharged enters afterheat generating system through outdoor flue to carry out waste heat recovery and send out Electricity, in the case of the working of a furnace is normal, flue-gas temperature is about 550 DEG C, and the refractory material of smoke discharging pipe liner completely can resistance to firmly height The temperature of temperature flue gas.But when production process occurs the working of a furnace deterioration accident such as broken Electrode, serious " thorn fire ", it is common practice to Directly open accident cigarette punching, allow be mingled with a large amount of dust, the flue gas of harmful gas enters in air, serious environment pollution, if still Allow the high-temperature gas in burner hearth go cleaner unit to discharge after purifying, then the furnace gas carrying a large amount of high-temperature dust secretly runs through watercooled hood Enter smoke discharging pipe, flue gas up to more than 1000 DEG C, smoke discharging pipe metal outer wall moment will tired temperature more than 550 DEG C, Smoke discharging pipe not only easy high-temperature oxydation, under pipeline refractory lining and metal pipe-wall self gravitation effect, easily accelerates height Temperature creep, ultimately causes pipeline break, subsides, and produces to silicon and causes huge loss.

Utility model content

The purpose of this utility model is in order to avoid during working of a furnace exception, in-furnace temperature suddenly rises and causes outdoor flue potential safety hazard, The water providing a kind of outdoor flue drenches chiller.

Adopt the following technical scheme that for this water of the outdoor flue of a kind of silicon production mineral hot furnace drenches chiller, including Water inlet pipe, shower, water leg, return pipe, cooling pond, described shower is ring-type, is trapped among outdoor flue vertical component Outside, shower apopore diameter 5mm, pitch-row 30mm, to outdoor flue water spray；Described water leg is positioned at shower, outdoor cigarette The lower section in road, water leg connection return pipe；Described cooling pond is divided into clear water zone and settling zone by dividing plate, and dividing plate top is less than cold But pond Chi Kou；Described water inlet pipe connection shower, water inlet pipe is provided with clarified water pump, ball valve；The outlet of described return pipe is positioned at cold But the settling zone in pond, described water inlet pipe water inlet is positioned at the clear water zone of cooling pond.

Described return pipe and water leg junction backwater hole are provided with screen cloth.Backwater hole diameter 100mm, screen cloth mesh aperture 5 ×5mm。

Described cooling pond is that ground excavation builds pit by laying bricks or stones, and long 6 meters, wide 3 meters, deep 2.5 meters, divider height is 2 meters.

Described water leg is trapezoidal shape, length of the upper end 12 meters, wide 4 meters, goes to the bottom long 8 meters, wide 2.5 meters, deep 1 meter.

Described clarified water pump is self-suction centrifugal pump.

Described shower apopore water (flow) direction is with the horizontal 45 degree.

Bottom surface, described settling zone is inclined-plane, gradient 1: 100, and lowest order is equipped with a mud and cheats: 400 × 400mm, deep 600mm , mud is provided with mud immersible pump in hole.

Described outdoor air flue horizontal part appearance is provided with temperature controller, and temperature controller controls clarified water pump and automatically turns on by design temperature With close down.

The beneficial effects of the utility model: 1, when working of a furnace deterioration accident occurs in silicon production process, it is not necessary to open accident The in line flue gas of chimney, effectively protects environment；2, after spray system is opened, outdoor flue outside wall temperature can be controlled at 200 DEG C Hereinafter, the safe operation of outdoor flue is effectively protected；3, high-temperature dust-containing flue gas enters afterheat generating system, necessarily through outdoor flue Generating efficiency and generated energy can be increased in degree, save the energy；5, cooling water circulation utilization, saving water resource；4, ensure that silicon is raw The seriality produced, reduces comprehensive energy consumption indirectly；4, solve the working of a furnace in silicon production process and need to open the punching of accident cigarette when deteriorating directly Discharge furnace gas pollutes the problem of environment, makes high-temperature furnace gas still with exhaust heat recovery power generation, then can enter cleaner unit and carry out process of gathering dust, While protection outdoor flue safety, the production making silicon is continuous, stable, indirectly reduces silicon comprehensive energy consumption.

Accompanying drawing explanation

Fig. 1 is schematic diagram of the present utility model；

In figure, 1-cooling pond, 2-water inlet pipe, 3-clarified water pump, 4-ball valve, 5-shower, 6-outdoor flue, 7-catchments Groove, 8-return pipe, 9-temperature controller, 10-mud immersible pump, 11-dividing plate.

Detailed description of the invention

With detailed description of the invention, this utility model is described in detail below in conjunction with the accompanying drawings.

This utility model includes: cooling pond 1 is arranged on below ground, long 6 meters, wide 3 meters, deep 2.5 meters, sets in the middle of pond Put dividing plate 11, for the body of wall that height is 2 meters, pond is divided into settling zone and clear water zone；Water inlet pipe 2 uses DN50 galvanized pipe to make Form；Clarified water pump 3 is self-suction centrifugal pump, power 5.5KW, lift 25 meters；Ball valve 4 is DN50 carbon steel ball valve；Spray header 5, roll into circular with φ 50mm steel pipe, be enclosed in outside vertical gas pass, be 80mm with flue outer wall gap, in shower Footpath: 3600mm, inner side (at 45 ° with horizontal diameter direction) on the lower side is bored and is beaten φ 5mm aperture, and pitch-row 30mm, for scale-deposit-preventing by aperture Blocking, need to periodically add quantitative antisludging agent.Spray header 5 is managed interior water and is sprayed to outdoor flue 6 under pressure；Water leg 7 Length of the upper end 12 meters, wide 4 meters, go to the bottom long 8 meters, wide 2.5 meters, deep 1 meter, overall in trapezoidal shape, bottom backwater hole φ 100mm, backwater Place the screen cloth 10 in one 5 × 5mm aperture on hole, prevent the plugging such as incrustation scale, rust；Return pipe 8 diameter 100mm, with water leg Backwater hole is connected, and shower water is through return pipe 8 from flowing into cooling pond, and after precipitation, overflow enters clear water reserviors.Cooling pond 1 can be straight It is connected on ground excavation, does waterproof, Anti-seeping technology.

During stove ore anomaly when occurring that outdoor flue outer wall is rubescent, middle control operator on duty on duty notifies operator in time Opening clarified water pump 3, adjust the aperture of ball valve 4 according to flue outside wall temperature, now spray header 5 starts water spray to outdoor flue 6 Cooling, high-temperature flue gas enters afterheat generating system by outdoor flue 6 and generates electricity.Shower water automatically flows into water leg 7, the water of bulk Dirt and rust are filtered by the screen cloth bottom water leg 7, and clear water flows into the settling zone of cooling pond 1 by return pipe 8, through naturally heavy Behind shallow lake, overflow is to clear water zone, then is supplied water for shower 5 through feed pipe 2 by clarified water pump 3, completes whole circulation.

For reducing manually-operated trouble, outdoor flue 6 horizontal component appearance is provided with temperature controller 9, its platinum-rhodium alloy thermoelectricity Even probe touches flue outer wall, can detect the temperature of flue outer wall at any time, and temperature signal can be transformed into the signal of telecommunication by temperature controller And be connected with clarified water pump, temperature controller 9 just can control clarified water pump 3 and automatically turns on by design temperature and close down.In production, when the working of a furnace is disliked During change, flue-gas temperature raises, and horizontal flue outside wall temperature increases, when temperature is increased to setting value (350 DEG C), and temperature controller 9 provide the signal of telecommunication, and clarified water pump 3 automatically turns on, and shower 5 starts water spray；When furnace condition recovery is normal, at a temperature of drop to setting value Time (200 DEG C), temperature controller 9 provides model, and clarified water pump 3 is out of service.

For convenience of desilting, bottom surface, settling zone is inclined-plane, gradient 1: 100, and lowest order is equipped with mud hole: a 400 × 400mm, Deep 600mm, is provided with mud immersible pump 10, power 1.1Kw, enables when pond desilting and replacing cooling water in mud hole.

Claims (9)

1. the water of the outdoor flue of silicon production mineral hot furnace drenches a chiller, it is characterized in that: include water inlet pipe (2), spray Pipe (5), water leg (7), return pipe (8), cooling pond (1), described shower (5) is ring-type, is trapped among outdoor flue (6) vertical The outside of part, shower (5) apopore diameter 5mm, pitch-row 30mm, towards outdoor flue (6) water spray；Described water leg (7) It is positioned at shower (5), the lower section of outdoor flue (6), water leg (7) connection return pipe (8)；Described cooling pond (1) is by dividing plate (11) being divided into clear water zone and settling zone, dividing plate (11) top is less than cooling pond (1) Chi Kou；Described water inlet pipe (2) connection spray Pipe (5), water inlet pipe (2) is provided with clarified water pump (3), ball valve (4)；Described return pipe (8) outlet is positioned at the precipitation of cooling pond (1) District, described water inlet pipe (2) water inlet is positioned at the clear water zone of cooling pond (1).

The water of the outdoor flue of silicon production mineral hot furnace the most according to claim 1 drenches chiller, it is characterized in that: described Return pipe (8) and water leg (7) junction backwater hole are provided with screen cloth.

The water of the outdoor flue of silicon production mineral hot furnace the most according to claim 2 drenches chiller, it is characterized in that: described Backwater hole diameter 100mm, screen cloth mesh aperture 5 × 5mm.

The water of the outdoor flue of silicon production mineral hot furnace the most according to claim 1 drenches chiller, it is characterized in that: described Cooling pond (1) is that ground excavation builds pit by laying bricks or stones, and long 6 meters, wide 3 meters, deep 2.5 meters, dividing plate (11) height is 2 meters.

The water of the outdoor flue of silicon production mineral hot furnace the most according to claim 1 drenches chiller, it is characterized in that: described Water leg (7) in trapezoidal shape, length of the upper end 12 meters, wide 4 meters, go to the bottom long 8 meters, wide 2.5 meters, deep 1 meter.

The water of the outdoor flue of silicon production mineral hot furnace the most according to claim 1 drenches chiller, it is characterized in that: described Clarified water pump (3) is self-suction centrifugal pump.

The water of the outdoor flue of silicon production mineral hot furnace the most according to claim 1 drenches chiller, it is characterized in that: described Shower (5) apopore water (flow) direction is with the horizontal 45 degree.

The water of the outdoor flue of silicon production mineral hot furnace the most according to claim 1 drenches chiller, it is characterized in that: described Bottom surface, settling zone is inclined-plane, gradient 1: 100, and lowest order is equipped with a mud hole: 400 × 400mm, deep 600mm, mud sets in hole There is mud immersible pump (10).

The water of the outdoor flue of silicon production mineral hot furnace the most according to claim 1 drenches chiller, it is characterized in that: described Outdoor flue (6) horizontal component appearance is provided with temperature controller (9), and temperature controller (9) controls clarified water pump (3) and automatically turns on by design temperature With close down.