CN102151454A

CN102151454A - Device for pretreating waste incineration smoke

Info

Publication number: CN102151454A
Application number: CN2011100941143A
Authority: CN
Inventors: 姚志坚; 韩俊峰; 朱一国
Original assignee: JIANGSU TYANMU ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
Current assignee: JIANGSU TYANMU ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
Priority date: 2011-04-09
Filing date: 2011-04-09
Publication date: 2011-08-17
Anticipated expiration: 2031-04-09
Also published as: CN102151454B

Abstract

The invention discloses a device for pretreating waste incineration smoke. A gravity settling chamber and a cyclone dust remover are respectively arranged on a fixed wall body through an integral frame and a bracket. A furnace chamber of the gravity settling chamber is divided into a smoke inlet furnace chamber and a smoke outlet furnace chamber by using an intermediate damping partition wall. The upside and the downside of the intermediate damping partition wall are respectively provided with an upper smoke flow through hole and a lower smoke flow through hole. The smoke inlet furnace chamber is provided with a smoke inlet I. The smoke outlet furnace chamber is provided with a smoke outlet I. The smoke outlet I is connected with the cyclone dust remover through a smoke channel pup joint. An ash collector hopper I and a helical conveyor are sequentially arranged under the furnace chamber of the gravity settling chamber. A smoke separating chamber of the cyclone dust remover is provided with a smoke outlet II connected with the smoke channel pup joint. A smoke outlet chamber is arranged at the upper part of the smoke separating chamber. A smoke outlet II is arranged on the smoke outlet chamber. An ash collector hopper II is arranged under the smoke separating chamber. Due to the adoption of the invention, rough particle dust and fine particle dust in high-temperature smoke are effectively settled and separated, and residual volatile matters and powdered carbon in the high-temperature smoke are combusted, so that the smoke is better purified.

Description

The pretreatment unit of flue gas of refuse burning

Technical field

The present invention relates to the pretreatment unit of a kind of flue gas processing device, particularly a kind of flue gas of refuse burning.

Background technology

At present, the method for domestic rubbish disposal both at home and abroad is a lot, and the burning disposal method is a kind of method of comparatively common use.The source of municipal solid waste incinerator rubbish mainly is the discarded object that produces in city dweller's daily life, rubbish and the rural garbage that department collects of keeping a public place clean, urban sanitation.Earth content is than higher in the house refuse, the rubbish in some city even reach 40 percent.Pollute control criterion according to China's consumer waste incineration, flue gas is handled and must be used dry processing device (as methods such as bag-type dusts), because of reasons such as earth content height in the house refuse, carrying a large amount of graininess dusts in the flue gas secretly, this flue gas makes the pressure of bag-type dust etc. very big and operating cost is very high.

Summary of the invention

The pretreatment unit that the purpose of this invention is to provide a kind of flue gas of refuse burning.The sedimentation effectively of this device, isolate thick, particle dust in the high-temperature flue gas, remaining fugitive constituent and powdered carbon in the combustion high temperature flue gas are purified flue gas preferably.So just can alleviate the load of next step fume treatment auxiliary, the operating cost in the time of also improving the service life of whole flue gas processing device and greatly reduce the dry processing device smoke treatment simultaneously.That this device also has is simple in structure, service life is long and the advantage of maintenance easily.

Technical scheme of the present invention is: a kind of pretreatment unit of flue gas of refuse burning, it comprises gravity settling chamber and cyclone dust collectors.Gravity settling chamber and cyclone dust collectors are installed in fixedly on the body of wall by the general frame made by metal material with by the support that metal material is made respectively.

Gravity settling chamber top is the gravity settling chamber furnace chamber, by middle damping partition wall the gravity settling chamber furnace chamber is divided into into cigarette furnace chamber and smoke furnace chamber in the middle of the gravity settling chamber furnace chamber.The middle damping partition wall framework of the centre of middle damping partition wall for making by metal material.Gravity settling chamber furnace chamber inwall and middle damping partition wall two sides are provided with the heat-insulation layer I that is made by refractory material.Above the middle damping partition wall be last flue gas opening, is time flue gas opening below the middle damping partition wall.Advance cigarette furnace chamber lower wall and be provided with gas approach I, gas approach I is connected with garbage incinerating system by the gas approach pipe nipple.Smoke furnace chamber upper side wall is provided with exhanst gas outlet I, and exhanst gas outlet I is connected with cyclone dust collectors by the exhaust gases passes pipe nipple.Have access door on the gravity settling chamber furnace chamber.Flue-dust retainer 1 is installed below the gravity settling chamber furnace chamber.Below the flue-dust retainer I conveying worm is housed.

Have gas approach II on one side, flue gas separation chamber of cyclone dust collectors, this gas approach II is connected with the exhaust gases passes pipe nipple and is connected with the exhanst gas outlet I of smoke furnace chamber by the exhaust gases passes pipe nipple.Top, flue gas separation chamber is provided with the smoke-box that goes out that is connected with the flue gas separation chamber, and the flue gas separation chamber is provided with the heat-insulation layer II that is made by refractory material with the inwall that goes out smoke-box.Go out to have exhanst gas outlet II above the smoke-box, this exhanst gas outlet II is connected with following fume treatment auxiliary by the exhanst gas outlet pipe nipple.Flue-dust retainer II is installed below the flue gas separation chamber.

The course of work of the present invention is: what the flue gas that produces in the waste incineration process at first entered gravity settling chamber advances the cigarette furnace chamber, damping partition wall in the middle of passing through then, and flue gas enters the smoke furnace chamber from upper and lower flue gas opening respectively.Crude particle dust in advancing cigarette furnace chamber and smoke furnace chamber in the high-temperature flue gas is entered flue-dust retainer I after the sedimentation effectively.The high-temperature flue gas that comes out from the smoke furnace chamber enters the flue gas separation chamber of cyclone dust collectors again, by tangential action of centrifugal force particle dust in the flue gas is separated in the flue gas separation chamber and enters flue-dust retainer II.After the flue gas of above-mentioned processing enters in next fume treatment auxiliary by the exhanst gas outlet II that goes out smoke-box is for further processing.The coarse grain dust that settles down at gravity settling chamber enters conveying worm through flue-dust retainer I and is timed and clears away.The particulate dust that cyclonic separation is come out in cyclone dust collectors drops on to be timed among the flue-dust retainer II of cyclone dust collectors and by flue-dust retainer II and clears away.

Advantage of the present invention has provided a kind of pretreatment unit of flue gas of refuse burning.This installs sedimentation effectively, has isolated thick, the particle dust in the high-temperature flue gas, and remaining fugitive constituent and the powdered carbon in the high-temperature flue gas that burnt makes flue gas obtain purifying preferably.So just alleviated the load of next step fume treatment auxiliary, the operating cost when also having improved the service life of whole flue gas processing device and greatly having reduced the dry processing device smoke treatment simultaneously.That this device also has is simple in structure, service life is long and the advantage of maintenance easily.

Description of drawings

The invention will be further described below in conjunction with drawings and Examples.

Fig. 1 is a structural representation of the present invention.

Fig. 2 is that the A-A of Fig. 1 shows structural representation to cuing open.

In the accompanying drawing: 1, the smoke furnace chamber, 2, flue-dust retainer I, 3, following flue gas opening, 4, conveying worm, 5, advance the cigarette furnace chamber, 6, access door, 7, fixing body of wall, 8, gas approach I, 9, the gas approach pipe nipple, 10, general frame, 11, the gravity settling chamber furnace chamber, 12, heat-insulation layer I, 13, middle damping partition wall, flue gas opening on 14,15, gravity settling chamber, 16, middle damping partition wall framework, 17, exhanst gas outlet I, 18, the exhaust gases passes pipe nipple, 19, gas approach II, 20, cyclone dust collectors, 21, exhanst gas outlet II, 22, go out smoke-box, 23, the exhanst gas outlet pipe nipple, 24, heat-insulation layer II, 25, support, 26, the flue gas separation chamber, 27, flue-dust retainer II.

The specific embodiment

As depicted in figs. 1 and 2: a kind of pretreatment unit of flue gas of refuse burning, it comprises gravity settling chamber 15 and cyclone dust collectors 20.Gravity settling chamber 15 and cyclone dust collectors 20 are installed in fixedly on the body of wall 7 by the general frame 10 made by metal material with by the support 25 that metal material is made respectively.

Gravity settling chamber 15 tops are gravity settling chamber furnace chamber 11, by middle damping partition wall 13 gravity settling chamber furnace chamber 11 are divided into into cigarette furnace chamber 5 and smoke furnace chamber 1 in the middle of the gravity settling chamber furnace chamber 11.The middle damping partition wall framework 16 of the centre of middle damping partition wall 13 for making by metal material.Gravity settling chamber furnace chamber 11 inwalls and middle damping partition wall 13 two sides are provided with the heat-insulation layer I12 that is made by refractory material.Above the middle damping partition wall 13 be last flue gas opening 14, below the middle damping partition wall 13 under flue gas opening 3.Advance cigarette furnace chamber 5 lower wall and be provided with gas approach I 8, gas approach I 8 is connected with garbage incinerating system by gas approach pipe nipple 9.Smoke furnace chamber 1 upper side wall is provided with exhanst gas outlet I 17, and exhanst gas outlet I 17 is connected with cyclone dust collectors 20 by exhaust gases passes pipe nipple 18.Have access door 6 on the gravity settling chamber furnace chamber 11.Flue-dust retainer I 2 is installed below the gravity settling chamber furnace chamber 11.Conveying worm 4 is housed below the flue-dust retainer I 2.

Have gas approach II 19 on 26 1 sides, flue gas separation chamber of cyclone dust collectors 20, this gas approach II 19 is connected with exhaust gases passes pipe nipple 18 and is connected with the exhanst gas outlet I 17 of smoke furnace chamber 1 by exhaust gases passes pipe nipple 18.26 tops, flue gas separation chamber be provided be connected with flue gas separation chamber 26 go out smoke-box 22, flue gas separation chamber 26 and the inwall that goes out smoke-box 22 are provided with the heat-insulation layer II 24 that is made by refractory material.Go out to have exhanst gas outlet II 21 above the smoke-box 22, this exhanst gas outlet II 21 is connected with following fume treatment auxiliary by exhanst gas outlet pipe nipple 23.Flue-dust retainer II 27 is installed below the flue gas separation chamber 26.

Claims

1. the pretreatment unit of a flue gas of refuse burning, it is characterized in that: it comprises gravity settling chamber and cyclone dust collectors, and gravity settling chamber and cyclone dust collectors are installed in fixedly on the body of wall by the general frame made by metal material with by the support that metal material is made respectively;

Gravity settling chamber top is the gravity settling chamber furnace chamber, by middle damping partition wall the gravity settling chamber furnace chamber is divided into into cigarette furnace chamber and smoke furnace chamber in the middle of the gravity settling chamber furnace chamber, the middle damping partition wall framework of the centre of middle damping partition wall for making by metal material, gravity settling chamber furnace chamber inwall and middle damping partition wall two sides are provided with the heat-insulation layer I that is made by refractory material, above the middle damping partition wall is last flue gas opening, flue gas opening under below the middle damping partition wall being, advance cigarette furnace chamber lower wall and be provided with gas approach I, gas approach I is connected with garbage incinerating system by the gas approach pipe nipple, smoke furnace chamber upper side wall is provided with exhanst gas outlet I, exhanst gas outlet I is connected with cyclone dust collectors by the exhaust gases passes pipe nipple, have access door on the gravity settling chamber furnace chamber, flue-dust retainer I is installed below the gravity settling chamber furnace chamber, conveying worm is housed below the flue-dust retainer I;

Have gas approach II on one side, flue gas separation chamber of cyclone dust collectors, this gas approach II is connected with the exhaust gases passes pipe nipple and is connected with the exhanst gas outlet I of smoke furnace chamber by the exhaust gases passes pipe nipple, top, flue gas separation chamber is provided with the smoke-box that goes out that is connected with the flue gas separation chamber, the flue gas separation chamber is provided with the heat-insulation layer II that is made by refractory material with the inwall that goes out smoke-box, go out and have exhanst gas outlet II above the smoke-box, this exhanst gas outlet II is connected with following fume treatment auxiliary by the exhanst gas outlet pipe nipple, flue-dust retainer II is installed below the flue gas separation chamber.