CN106215625A - A kind of foul gas controls processing system - Google Patents

Abstract

One foul gas of the present invention controls processing system, including: store the sludge-tank being transported into organic waste；The smelly blower fan of suction from the described cacodorous gas of sludge-tank inhaler；Collect the dust arrester of the dust that exsiccator is discharged；The gas of the used heat reclaimed from described dust arrester and described sludge-tank is carried out heat exchange the air preheater supplied to exsiccator air stove；The odor removal that dry waste gas and stench are processed；For reducing the smoke control device of white cigarette in the waste gas of described odor removal.The present invention has deodorization, dedusting, subtracts cigarette, Waste Heat Recovery integration, strong adaptability, and efficiency is high, the advantage of low cost.

Description

A kind of foul gas controls processing system

Technical field

The present invention relates to environmental technology field, specifically a kind of foul gas controls processing system.

Background technology

Stench is defined as by standard GB/T 14554-93: all stimulate organum olfactorium to cause people unhappy and damage raw The gaseous matter of ever-changing environment.Commercial production, municipal wastewater, Treatment of Sludge and refuse disposal facility etc. are the main next of foul gas Source.Having a large amount of foul gas to produce in sludge drying, the most in a heated condition, foul gas is strongly.The master of waste gas Wanting composition is hydrogen sulfide, ammonia, methanthiol, methyl sulfide etc., in mud drying process, if do not taked corresponding measure to process stench Gas, by smoke exhaust fan directly through smoke stack emission, causes huge harmful effect to living environment around.

Summary of the invention

It is an object of the invention to provide a kind of stench zero-emission, subtract dirt, subtract cigarette foul gas control processing system.

The present invention is achieved through the following technical solutions above-mentioned purpose: a kind of foul gas controls processing system, including:

Store the sludge-tank being transported into organic waste；

The smelly blower fan of suction from the described cacodorous gas of sludge-tank inhaler；

Collect the dust arrester of the dust that exsiccator is discharged；

The gas of the used heat reclaimed from described dust arrester and described sludge-tank is carried out heat exchange and supplies to exsiccator air stove Air preheater；

The odor removal that dry waste gas and stench are processed；

For reducing the smoke control device of white cigarette in the waste gas of described odor removal.

Further, described odor removal includes interconnective Wet-type centrifugal dust arrester and scrubbing tower.

Further, described Wet-type centrifugal dust arrester includes funnel-form cyclone main body, makes waste gas enter described cyclone main body Internal air inlet, discharges the gas outlet of waste gas in described cyclone main body, is positioned at the outlet of described cyclone main body bottom, is positioned at The blast tube on described air inlet top, is positioned at the cistern of described outlet lower end.

Further, the smelly blower fan of described suction is positioned at outside described sludge-tank.

Further, described smoke control device include subtracting cigarette heat exchanger and to described subtract the air-supply of cigarette heat exchanger subtract cigarette wind Machine.

Further, described dust arrester includes whirler-type dust catcher and filter dust collector.

Compared with prior art, foul gas of the present invention control processing system provides the benefit that:

1. efficiently except stench: whole system has stopped the escape of various foul smell, and deodorization efficiency is up to nearly 100%.

2. without adding chemical substance: only need to arrange corresponding exhaust duct, air draft power and water spray, it is not necessary to add chemistry Material participates in chemical reaction.

3. strong adaptability: be suitable for the sludge drier system of 5-10 ton hour treating capacity, can 24 hours continuous works Make, stable and reliable operation.

4. deodorization, dedusting, subtract cigarette, Waste Heat Recovery integration: whole system can reach deodorization, dedusting, subtract cigarette, Waste Heat Recovery Multiple purposes, it is ensured that zero stink discharge, production safety and the utilization of waste thermal energy.

5. operating cost is low: without special messenger's regular maintenance, only need to make regular check on, and equipment energy consumption is low.

6. without pretreatment: foul gas is without carrying out special handling, and the temperature of equipment working environment, humidity, pH value are equal Without particular/special requirement.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of reclaiming organic waste device systems.

Fig. 2 is that mud is transported into supply equipment principle schematic.

Fig. 3 is drying sludge principle schematic.

Fig. 4 is drying machine angle one schematic diagram.

Fig. 5 is drying machine angle two schematic diagram.

Fig. 6 is drying machine angle three schematic diagram.

Fig. 7 is that drying machine discharges exhaust-gas treatment principle schematic.

Fig. 8 is to be dried sewage sludge storage and transport principle schematic.

Fig. 9 is Wetting centrifugal dust arrester angle one schematic diagram.

Figure 10 is Wetting centrifugal dust arrester angle two schematic diagram.

Figure 11 is the close-up schematic view of Fig. 9.

Label in accompanying drawing is as follows:

10, sludge-tank, 11, foreign body screening machine, 12, mud discharging device, 13, mud discharging conveyer, 14, mud transfer conveying Machine, 15, mud transfer pump, 16, inhale smelly blower fan, 17, interim sludge-tank, 17a, quantitatively discharges conveyer, 17b, mud discharging meter Measuring device, 18, exsiccator cast hopper, conveyer thrown in by 18a, exsiccator, and 18b, mud loopback conveyer, 18c, loopback mud are given Glassware, 20, exsiccator, 21, rotary kiln, 22, motor, 23, disintegrating machine, 23a, rotating shaft, 23b, the first breaking cutting machine, 23c, the second breaking cutting machine, 23d, rotary cutting machine, 24, transfer scraper bowl, 25, loopback outlet, 26, be dried mud row Put conveyer, 27, be dried mud discharging conveyer rotary valve, 28, be dried mud and vertically transfer conveyer, 29, be dried sludge water Conveyer is sent in translation, and 30, exsiccator air stove, 40, dust arrester, 41, whirler-type dust catcher, the 42, first rotary valve, 45, filter Formula dust arrester, 46, vibrator, the 47, second rotary valve, 50, be dried mud cooler, 52, cooling sludge water translation send conveyer, 53, cooling mud vertically transfers conveyer, 55, be dried sludge-tank, 56, be dried sludge-tank breather filter, 57, nitrogen cylinder, 58, It is dried mud discharging control gate, 60, air preheater, 61, blower fan, 70, odor removal, 71, Wetting centrifugal dust arrester, 72, Scrubbing tower, 710, cyclone main body, 711, air inlet, 712, gas outlet, 713, outlet, 714, cover body, 715, water pipe, 716, spray Mouth pipe, 716a, water jet, 717, cistern, 717a, counterflow-preventing plate, 717b, inspection hatch, 718, drain pipe, 80, smoke control device, 81, cigarette heat exchanger is subtracted, 82, subtract cigarette blower fan.

Detailed description of the invention

" mud " in the present invention refers to food refuse, agricultural product, processing of aquatic products technique or ornaments processing technique mistake The organic wastes such as the garbage of in journey and slaughterhouse discharge, sewage sludge, poultry garbage.

As it is shown in figure 1, mud is dried and the reclaiming organic waste device systems of resource includes: store fortune The sludge-tank 10 of the organic waste entered；Organic waste, the exsiccator cast hopper 18 storing and discharging is obtained from sludge-tank； The broken organic waste from exsiccator cast hopper, the exsiccator 20 being dried and discharging；To exsiccator supply hot blast Exsiccator air stove 30；Collect the dust arrester 40 of the dust that exsiccator is discharged；The dry organic waste discharging exsiccator enters The dry mud cooler 50 that row cooling processes；The organic waste storing self-desiccation mud cooler the dry dirt transported Mud sump 55；The used heat reclaimed from dust arrester and the gas including stench sucked by inhaling smelly blower fan at sludge-tank are carried out Heat exchange also supplies the air preheater 60 to exsiccator air stove；To that sucked by dry waste gas blower fan, pre-from air The dry waste gas of hot device and the stench sucked from dry sludge-tank carry out the odor removal 70 processed；Reduce through odor removal The smoke control device 80 of white cigarette in waste gas.

As in figure 2 it is shown, sludge-tank 10 is the place storing the mud that mud collecting cart ships, installed above at sludge-tank 10 Mud equipped with weigh-bridge and air curtain is transported into field, and sludge-tank 10 includes: be blended in fortune by driving motor reciprocating sieve to select The screen mesh type foreign body screening machine 11 of the foreign body in the organic waste entered；Promoted by multiple propellers based on hydraulic-driven and discharge The mud discharging device 12 of the organic waste stored；The mud transfer conveyer of the debirs that mobile mud discharging device 12 is discharged 14 and for discharge mud transfer conveyer 14 transfer organic waste mud supply pump 15.

It addition, because sludge-tank 10 gives out a foul smell, it is proposed that after throwing in mud and starting foreign body screening machine 11, close mud The input door in pond is closed, for preventing mud supply pump 15 from breaking down or reorganizing and outfit, it is proposed that be equipped with 2 mud supply pumps 15。

Further, it is suggested that transfer at mud displacer 12 and mud, mud discharging conveyer 13 is installed between conveyer 14, builds View mud discharging conveyer 13 is three screw conveyor shafts, it is ensured that bulky mud can be at 3 spiral shells during discharge Crushing between rotation, mud transfer conveyer 14 is two screw conveyor shafts, and mud supply pump 15 uses efficiency height, is prone to obtain Obtain the piston pump of high pressure.

Because sludge-tank 10 and mud are transported into field and always give out a foul smell, so being mounted with in outside to inhale smelly blower fan 16 inhaler Cacodorous gas, the gas of suction and the waste gas through exsiccator 20 and dust arrester 40 carry out heat exchange, after temperature rises, Exsiccator air stove 30 is re-used as fuel, it addition, be transported into field at mud the stench of suction is sent to deodorization dress Put 70 to process.

As shown in Figure 3, it is mounted with to store facing of organic waste between sludge-tank 10 and exsiccator cast hopper 18 temporarily Time sludge-tank 17, the outlet at interim sludge-tank 17 is mounted with, for quantitatively discharging mud, to be made up of two screw conveyor shafts Quantitatively discharge conveyer 17a and for measuring organic sludge the mud discharging quantifier 17b quantitatively discharged.

Outlet at exsiccator cast hopper 18 be mounted with to be thrown to mud exsiccator 20 by two screw conveyor shafts Conveyer 18a thrown in by the exsiccator constituted.It addition, be mounted with self-desiccation machine in the future between exsiccator 20 and exsiccator cast hopper 18 The mud of 20 is recycled to the mud loopback conveyer 18b of drying machine cast hopper 18, is mounted with by moving on exsiccator cast hopper 18 Send the loopback mud dispenser 18c that the conveying worm of the mud from mud loopback conveyer 18b is constituted here.

As shown in Figures 4 to 6, exsiccator 20 is that from more than 80%, the water content of mud is down to less than 10%, crushes simultaneously Make the device that the volume of mud reduces, including；Tilt by certain angle from front end to rear end, rotate under the driving of motor 22 And the rotary kiln 21 operated；The multiple disintegrating machines 23 installed are extended from the front end edge rotary kiln length direction of rotary kiln 21；Returning Equidistantly fixedly mount the transfer scraper bowl 24 for transferring mud along helix on rotary kiln inner peripheral surface.

Transfer scraper bowl 24 is the shape of folding two-layer, and the two ends of length direction are connected with end adjacent one another are, such that it is able to More effectively transfer the mud of whereabouts, expand the contact area with mud, within the relatively short time, at utmost improve eliminating The efficiency of moisture.

Disintegrating machine 23 includes the rotating shaft 23a extended along rotary kiln 21 length direction；Along rotating shaft equidistantly install first break Broken formula cutting machine 23b；There is certain distance with the first breaking cutting machine 23b, the second of installation parallel with rotating shaft 23a is breaking The distance of cutting machine 23c and the rotary cutting machine 23d, rotating shaft 23a and rotary kiln 21 circle center that are arranged on roller end is H, the quantity of disintegrating machine is two, when one of them rotates forward, another counter-rotating, the broken mud fallen.

Further, it is suggested that install rotary cutting machine 23d on the end axis that conveyer 18a thrown in by exsiccator, this will increase The strength of the broken mud fallen, it addition, rotary cutting machine can also be arranged between the first breaking cutting machine.

It addition, the second breaking cutting machine 23c is installed radially based on rotating shaft 23a center, the second breaking cutting machine Overlapped being arranged on the first breaking cutting machine 23b in two ends of 23c, forms overlapping region L, with the first breaking cutting The direction of principal axis of machine is at a right angle to be crushed, and the direction of principal axis along the second breaking cutting machine crushes, such that it is able to improve broken The efficiency of mud.

I.e. in disintegrating machine, the first breaking cutting machine and the second breaking cutting machine are interlaced, mutually along direction in length and breadth The most at a right angle crush, can more contact with the mud fallen at short notice, thus broken more Mud, furthermore it is possible to reduce the water content of mud in a large number, improves drying efficiency, through broken mud than traditional broken dirt Mud is denser, and dried dry mud is more much smaller than the grain graininess of conventional situation, and thermal power plant is used as auxiliary fuel Shi Wuxu carries out broken i.e. can be used directly, such that it is able to expense and time needed for second-time breakage is greatly lowered.

It addition, the mud size uniformity being dried through the exsiccator of the present invention, granule is less than 5mm, with average more than 10mm, Monnolithic case irregular traditional drying mud is compared, and grain graininess is little, and profile is the most homogeneous, therefore can reduce dry mud Floor space, it addition, intergranular space is little, can once transport and more be dried mud, thus save freight charges, because outward Shape is more homogeneous than traditional sludge, it is possible at utmost reduce the fine dust caused in transportation because of friction, collision etc. Generation.

On the one hand, rotary kiln 21 rotates with the rotating speed of 0.5～5rpm and operates, and is gradually lowered from front end to rear height, There is the gradient of 1～5 °, it is ensured that mud during rotation, can be transferred.

Advise that the front end reclaiming kiln forms loopback outlet 25, rotary kiln 21 by loopback outlet 25 by inside towards Mud that the direction in opposite direction crushing and transferring with disintegrating machine 23 spills, that do not transfer is recycled to exsiccator cast hopper 18.

It addition, as it is shown on figure 3, between exsiccator 20 and dry mud cooler 50, from being positioned at exsiccator 20 rear end Outlet starts the dry mud discharging conveyer 26 being mounted with to be made up of vane type drag conveyor successively；Dry for discharging The dry mud discharging conveyer rotary valve 27 of mud；The bucket elevator of right angle setting scraper bowl-dry mud is vertically transferred defeated Send machine 28 and the dry sludge water translation being made up of drag conveyor to send conveyer 29, the dry mud in drying machine 20 is transferred To the dry mud cooler 50 that setting height(from bottom) is different.

Exsiccator air stove 30 is the gas sucked from sludge-tank 10 and discharges through exsiccator 20 and dust arrester 40 High-temp waste gas carries out heat exchange in air preheater 60, and burn in the type of furnace combustion furnace gas therefore obtained and main fuel, The air stove of hot blast is supplied to exsiccator 20.

As it is shown in fig. 7, dust arrester 40 is for removing the float comprising dust of exsiccator 20 discharge and discharging useless Gas, is made up of whirler-type dust catcher 41 and filter dust collector 45.

The structure of whirler-type dust catcher 41 is applicable to remove bigger granule, so have employed double-shaft spiral type, then leads to Cross and be positioned at the first rotary valve 42 of bottom the float such as the dust of removal are emitted into dry mud cooler 50, the most treatable Small granular suspended matters is then transferred to filter dust collector 45.

The structure of filter dust collector 45 be applicable to receive and process first through centrifugal type filter 41 but not processed Little granule sludge, equipped with vibrator 46, use the impulse jet mode of the granule being shaken off collection by periodic oscillations, then lead to Cross and be positioned at the second rotary valve 47 of bottom the float such as the dust of removal are emitted into dry mud cooler 50, finally give off Through filter dust collector 45 process containing cacodorous high-temp waste gas, but be not directly discharge, but pass through air preheat Device 60 reclaim high temperature waste hot carry out again with.

The dry mud being dried 80～90 DEG C that exsiccator 20 is discharged by mud cooler 50 is cooled to less than 40 DEG C, cooling Cool down by the way of water-cooled based on cooling water around the reel of device, because dry mud being transferred by rotating drum To outlet side, so it is the lowest, through redrying mud cooler, mud to install time image exsiccator 20 Moisture may be fully drained.

As shown in Figure 8, dry sludge-tank 55, for carrying out dust disposal, is mounted with on the top of sludge-tank to use every necessarily Time just shakes off the dry sludge-tank breather filter 56 of the air pulse spray regime of dust, bottom be mounted with for metering and Discharge is dried the dry mud discharging control gate 58 of mud.

It addition, be the generation of fire preventing, it is proposed that be equipped with the nitrogen cylinder 57 storing noble gas-nitrogen, and dry mud Emission control grid 58 are together installed by discharging the exhaust blower of dry mud, tapping equipment and for quantitatively to discharge based on required Amount platform, it is proposed that install 2 dry sludge-tanks 55.

It addition, between dry mud cooler 50 and dry sludge-tank 55, from being positioned at dry mud cooler 50 rear end Outlet start to install successively cooling mud distribution formula conveyer (not shown) being made up of belt type conveyer；By belt-type The cooling sludge water translation that conveyer is constituted send conveyer 52 transfer conveyer 53 vertical with vertically arranged cooling mud, cooling Mud can transfer between dry mud cooler 50 and the dry sludge-tank 55 that setting height(from bottom) is different.

Air preheater 60 is as it is shown in fig. 7, to the used heat containing cacodorous high-temp waste gas from filter dust collector 45 Heat exchange the burner supplied to exsiccator air stove 30 is carried out, it is proposed that at air preheater with the gas from sludge-tank 10 Dry waste gas blower fan 61 is installed in the rear end of 60, has sucked heat exchange, containing cacodorous waste gas and it has been transferred to odor removal The Wetting centrifugal dust arrester 71 of 70.

Odor removal 70 includes interconnective Wetting centrifugal dust arrester 71 and scrubbing tower 72, by Wetting centrifugal collection Dirt device 71 carries out the first separation of fine dust in waste gas, then allows the waste gas having separated fine dust again by scrubbing tower 72, thus the most again separate fine dust.

As shown in Figures 9 to 11, Wetting centrifugal dust arrester 71 includes funnel-form cyclone main body 710；Cyclone main body 710 Top is cochlea shape to the center position of cyclone main body 710, makes the waste gas being heated to certain state enter via air preheater 60 Enter cyclone main body 710 internal, by the air inlet 711 of centrifugation mode separation fine dust；It is positioned at cyclone main body 71 axle side To center, a part is at cyclone main body internal 710, and a part is in outside, and will separate after fine dust in cyclone main body is useless Gas is emitted into the gas outlet 712 of scrubbing tower 72 side；It is positioned at cyclone main body 710 bottom, discharges from waste gas first separation out Fine dust and the outlet 713 of mixture of water；It is positioned at air inlet 711 top, separates by giving up that air inlet 711 enters Fine dust that gas bag contains and waste gas, reduce EGT, have the blast tube 716 of multiple water jet 716a；Blast tube 716 wraps Include on air inlet top be closed state install cover body 714；The feed pipe 715 of a certain amount of water is supplied to blast tube 716；Peace It is contained in outlet 713 lower end, under the effect of the water of blast tube ejection, makes the fine dust separated from waste gas along cyclone main body The cistern 717 falling and being collected and the water containing fine dust discharged by cistern 717 are emitted into waste water water leg Drain pipe 718.

It addition, discharge outlet 713 lower end being connected with cistern 717, it is considered to do not use Wetting centrifugal dust arrester and prevent The watery vomiting stored flow to cyclone main body, also needs to install counterflow-preventing plate 717a based on elastic hinge action, pacifies on cistern Dress checks the inspection hatch 717b within cistern for user.

Here, focus on the water containing fine dust in waste water water leg, after collecting a period of time, carry out water with micro- The separation of fine dust, the most again the fine dust gathered and be transferred to sludge-tank and use.

That is, that comprise fine dust, to have uniform temperature waste gas is being centrifuged point by Wetting centrifugal dust arrester 71 Spray water during from, efficiently separate the fine dust and water comprised in waste gas, and reduced the temperature of waste gas by water spray.

Multiple scrubbing towers 72 are positioned at the rear end of Wetting centrifugal dust arrester 71, giving up of the most self-wetted whirler-type dust catcher 71 Gas blowout water, secondary goes the water solublity stench contained in removing exhaust gas the temperature reducing waste gas.

The structure of smoke control device 80, for reducing the white cigarette in the final waste gas processed, subtracts cigarette heat including fin tube type Exchanger 81 and suck extraneous air, subtract cigarette blower fan 82 to the turbocharging type subtracting cigarette heat exchanger 81 air-supply, removes stench also It is emitted in air after reducing temperature.

Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not On the premise of departing from the invention design, it is also possible to making some deformation and improvement, these broadly fall into the protection model of the present invention Enclose.

Claims (6)

1. a foul gas controls processing system, it is characterised in that including:

Store the sludge-tank being transported into organic waste；

The smelly blower fan of suction from the described cacodorous gas of sludge-tank inhaler；

Collect the dust arrester of the dust that exsiccator is discharged；

The gas of the used heat reclaimed from described dust arrester and described sludge-tank is carried out heat exchange and supplies to exsiccator air stove Air preheater；

The odor removal that dry waste gas and stench are processed；

For reducing the smoke control device of white cigarette in the waste gas of described odor removal.

Foul gas the most according to claim 1 controls processing system, it is characterised in that: described odor removal includes mutually The Wet-type centrifugal dust arrester connected and scrubbing tower.

Foul gas the most according to claim 2 controls processing system, it is characterised in that: described Wet-type centrifugal dust arrester bag Include funnel-form cyclone main body, make waste gas enter air inlet within described cyclone main body, discharge waste gas in described cyclone main body Gas outlet, is positioned at the outlet of described cyclone main body bottom, is positioned at the blast tube on described air inlet top, is positioned at described outlet The cistern of lower end.

Foul gas the most according to claim 1 controls processing system, it is characterised in that: the smelly blower fan of described suction is positioned at described Outside sludge-tank.

Foul gas the most according to claim 1 controls processing system, it is characterised in that: described smoke control device includes subtracting cigarette Heat exchanger and to described subtract cigarette heat exchanger air-supply subtract cigarette blower fan.

Foul gas the most according to claim 1 controls processing system, it is characterised in that: described dust arrester includes centrifugal Dust arrester and filter dust collector.